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  • SHI Zhuo-ran, CHENG Hong-kun, SUN Li-xin
    Manufacturing Automation. 2026, 48(3): 157-170. https://doi.org/10.3969/j.issn.1009-0134.2026.03.017

    To address the challenges of high human intervention risks, insufficient stiffness and poor environmental adaptability of conventional automated equipment, in the sealing operations of nuclear waste containers, this study proposes a high-stiffness modular 3-DOF robotic system for closure grasping and sealing. The mechanical system comprises a base frame, locomotion mechanism, lifting mechanism, and an integrated end-effector (combining rotary, gripping, and tightening functions). Innovations include a dual closed-loop linkage lifting mechanism and a worm-gear-planetary compound reduction system, enabling precise and reliable power transmission under heavy-load conditions. A closed-loop vector equation for the lifting mechanism is established, and a genetic optimization algorithm is employed for multi-objective optimization design of structural dimensions, thereby determining the key structural dimension parameters. The key structural dimensions and parameters have been determined using a genetic optimization algorithm. Parametric finite element models were established to evaluate the mechanical performance of critical components: the base frame exhibits a maximum von Mises stress of 6.445 MPa (safety factor: 36.4), the mobile chassis shows a deformation of 0.055 mm, and the tie-rod system achieves a maximum stress of 3.479 MPa (safety factor: 67.5), all significantly below the allowable stress of Q235 carbon steel. The integrated end-effector platform demonstrates a maximum stress of 6.747 MPa (safety factor: 34.8) and a deformation of 0.0139 mm. This research provides a numerical simulation based structural design methodology and mechanical evaluation framework for automated sealing operations in radioactive environments, ensuring compliance with the stringent demands of nuclear industrial applications.

  • LI Er-chao, SHEN Yi-rong, ZHANG Hao-chen
    Manufacturing Automation. 2026, 48(2): 64-77. https://doi.org/10.3969/j.issn.1009-0134.2026.02.007

    To address the challenges of limited transient response and actuator saturation in teleoperated robotic systems, an improved prescribed performance control scheme is proposed. First, a time-varying error constraint function and a transformation function are designed to explicitly regulate the error convergence process, thereby enhancing both the transient response speed and steady-state accuracy. Second, a nonlinear saturation function is integrated with an adaptive tuning mechanism to dynamically constrain and adjust the control torques on both master and slave sides, effectively mitigating discontinuities and performance degradation caused by actuator saturation, and ensuring torque smoothness. Furthermore, a radial basis function neural network is employed to estimate system uncertainties, thereby improving the robustness and adaptability of the control framework. Without relying on accurate system models, the stability of the closed-loop system under the proposed control strategy is rigorously proven via Lyapunov-based analysis. Finally, comparative simulation results validate the superior performance of the proposed method in terms of error convergence, saturation suppression, and position tracking accuracy.

  • TAO Yong, XIAO Shu-zhen, GAO He, CHEN Yi-xian, WEI Hong-xing
    Manufacturing Automation. 2025, 47(12): 1-18. https://doi.org/10.3969/j.issn.1009-0134.2025.12.001

    The dexterous multi-fingered robotic hand, serving as a key end-effector, is pivotal for enabling robots to perform fine-grained grasping and compliant manipulation. Its advancement holds significant importance for promoting automation in manufacturing, enhancing the intelligence of service robots, and expanding applications in specialized environments. Focusing on humanoid multi-fingered dexterous hand technologies, this paper systematically reviews the current state-of-the-art and future trends. It begins by elucidating the fundamental concepts, system architecture, and typical characteristics of dexterous hands. This is followed by a comprehensive of research achievements from domestic and international teams and commercially available mainstream multi-fingered dexterous hand products, covering various degrees-of-freedom designs and their respective hardware and software implementations. Key technologies, including core hardware components, multi-modal sensory fusion, and control strategies, are critically analyzed. The paper subsequently summarizes practical applications across domains such as industrial assembly, daily life assistance, and operations in extreme environments. Current challenges, particularly in reliability, multi-modal coordination, generalization capability, human-robot safety, and integration and application, are identified. Finally, future research directions are prospected from multiple perspectives, including standard establishment, novel mechanical structures, advanced multi-modal perception and fusion, bionic evolution, and embodied intelligence, aiming to provide valuable insights for in-depth research and groundbreaking applications of dexterous hands.

  • XIA Jiang-tao, LI Teng, WANG Ying, LI Yan-tang, ZHOU Qi
    Manufacturing Automation. 2026, 48(4): 81-88. https://doi.org/10.3969/j.issn.1009-0134.2026.04.009

    With the widespread adoption of ultra-high voltage switchgear, the requirements for assembly accuracy and efficiency continue to increase. Traditional manual assembly suffers from high labor intensity, high centering errors, and insufficient consistency, necessitating the development of intelligent and automated assembly methods. To address the challenges of ultra-high voltage disconnectors, such as the complex spatial structure and the fact that the assembly plane and the centering axis are not in the same coordinate system, this paper proposes a robotic assembly method based on 3D point clouds and vision guidance. First, the moving end intermediate conductor is scanned using a 3D point cloud to obtain its spatial pose in the basin coordinate system. Hand-eye calibration is then used to achieve coordinate system transformation. Subsequently, the pose estimated from the point cloud is error-corrected using vision guidance technology to obtain a high-precision assembly alignment reference. Furthermore, inverse kinematics and path planning are used to generate the assembly trajectory. Force/position hybrid control is then introduced to achieve smooth contact and stable insertion during the assembly process. Experimental results demonstrate that this method achieves an overall assembly accuracy of 97%, meeting the efficiency and precision requirements of the assembly process and enabling automated assembly of high-voltage disconnectors.

  • LI Bing-lin, WANG Kai, DUAN Ming-hao, YANG Kong-hua, LIU Chun-bao
    Manufacturing Automation. 2025, 47(12): 19-27. https://doi.org/10.3969/j.issn.1009-0134.2025.12.002

    As an important component of intelligent manufacturing and intelligent operation and maintenance systems, industrial inspection robots are playing a key role in various complex industrial scenarios. With the continuous progress of deep learning, multi-sensor fusion, and autonomous navigation technologies, industrial inspection robots have significantly been improved in terms of accuracy, efficiency, and adaptability. This article systematically reviews the concept, key technologies, and typical applications of industrial inspection robots, and focuses on analyzing the research status of core technologies such as perception and recognition, autonomous positioning and navigation, advanced control, and intelligent decision-making. It also assesses the maturity and industrialization progress of current technologies by combining practical applications in fields such as power, workshops, and special environments. Despite significant achievements in this field, challenges still exist in perception accuracy, dynamic environment adaptability, and task execution intelligence. The development of key technologies is expected to continue in the directions of multi-source data fusion, autonomous learning, and collaborative operation. The article aims to provide a systematic reference and guidance for future research and industrial development of industrial inspection robot technology.

  • LI Yun-xiao, FANG Yue-ming, DENG Hu, XU Yu-ting, YANG Ji-yu
    Manufacturing Automation. 2025, 47(12): 64-74. https://doi.org/10.3969/j.issn.1009-0134.2025.12.007

    To overcome the limitations of traditional 2D planar grasping and address the challenge of inaccurate position estimation in existing 6D pose estimation algorithms such as Gen6D, this paper proposes an optimized algorithm, Gen6D-Op. For typical robotic grasping scenarios, the algorithm formulates the position estimation error as a constrained optimization problem based on a collinearity assumption, enabling the precise acquisition of object poses. Building on this high-precision pose, we further design two efficient grasping strategies—Vertical Pose and Planar Projection—to enhance grasping efficiency and stability. Experiments demonstrate that Gen6D-Op significantly improves pose estimation accuracy, reducing the total error by 72.3% to 9.48 mm and achieving a multi-object grasping success rate of 94%. Furthermore, applying the designed grasping strategies effectively reduces the robotic arm's joint angle variation and shortens the grasping time.

  • ZHANG Ai-lin, ZHANG Yi-da, WANG Xue-feng, ZHAO Xi, ZHANG Yan-xia
    Manufacturing Automation. 2025, 47(12): 136-146. https://doi.org/10.3969/j.issn.1009-0134.2025.12.014

    The realization of industrialized intelligent construction for steel structures is contingent upon two prerequisites: first, the development of a fully assembled steel structure system that is inherently efficient for repeated disassembly; second, the development of automated assembly robots to address the issues of low efficiency, low precision, and poor quality associated with on-site manual installation. This paper proposes a solution involving an automated assembly robot for the installation of torsion-shear high-strength bolts in Core-tube type steel column joint. Focusing on the assembly process of M16 torsion-shear high-strength bolts, this study emphasizes the mechanism design and structural reliability analysis of the robot end-effector. A hierarchical control system for bolt-hole assembly, based on machine vision, is designed. Simulation experiments demonstrate that the proposed robotic mechanism satisfies the assembly process requirements and significantly enhances the efficiency, precision, quality, and safety of installing torsion-shear high-strength bolts in core-tube column connections.

  • LIANG Hao-peng, TANG Xiao-wei, SHE Mi, ZHONG Ming, LI Hao
    Manufacturing Automation. 2025, 47(12): 115-121. https://doi.org/10.3969/j.issn.1009-0134.2025.12.012

    Industrial robots, with their high flexibility and large working range, have gradually become another important processing equipment besides CNC machine tools in national strategic fields such as aerospace and maritime industry in China. The dynamic characteristics of the robot end are dominated by its joints. To improve the dynamic performance of the robot, it is necessary to start with its weak joints, make improvements and innovations on the basis of the existing series form, and explore new high-stiffness driving methods and robot configurations. A 2-RPR robot for milling large propellers is proposed, which includes a six-axis robot main body and a double electric cylinder branch chain. The translation of the electric cylinder drives the rotation of the robot joint, thereby improving the stiffness of the whole robot. In order to meet the processing space requirements of large propellers, the length parameters of each link of the robot are optimized based on the genetic algorithm to realize the optimization of the working space of the whole robot, so that the working space meets the processing range of a single blade and has the maximum utilization rate.

  • WANG Yong, ZHAO Hong-jian, MOU Jin-zhuo, TIAN Cheng-hua, TENG Li-chen
    Manufacturing Automation. 2025, 47(12): 54-63. https://doi.org/10.3969/j.issn.1009-0134.2025.12.006

    Legged humanoid robots often suffer from inaccurate state estimation when traversing complex terrains or under external disturbances, which significantly compromises their locomotion stability. To address this challenge, this paper presents a reinforcement learning control framework integrated with a state estimator. The proposed framework enables accurate estimation of critical state information, including base linear velocity, foot height, and foot-ground contact probability, even under adversarial conditions with substantial external perturbations. We first construct a collaborative training architecture comprising a state estimation network and an asymmetric actor-critic network to effectively infer state information. Furthermore, a novel reward function specifically designed for humanoid robots with unique foot geometry is introduced to enhance state estimation accuracy. The method has been successfully deployed on our self-developed humanoid robot platform. Experimental results demonstrate that our controller significantly outperforms existing approaches, maintaining stable forward velocity across various challenging terrains, thereby validating its robustness and transferability in disturbed environments.

  • SHI Yun-tao, LI Wang-han, WANG Ying-ying
    Manufacturing Automation. 2025, 47(12): 159-167. https://doi.org/10.3969/j.issn.1009-0134.2025.12.016

    Against the backdrop of Industry 4.0, the demands for device collaboration and real-time communication continue to rise. Traditional industrial Automated Guided Vehicle (AGV) systems face critical challenges such as inconsistent protocol standards, poor compatibility among heterogeneous devices, and insufficient stability in wide-area communication. To address these issues, this paper proposes a collaborative communication scheme for AGVs based on 5G-VXLAN and OPC UA/DDS protocol integration. The goal is to enable cross-platform interaction and multi-protocol adaptation of AGV control information within an ROS 2 distributed system. By employing VXLAN technology to build a scalable logical Layer 2 overlay network atop a Layer 3 physical infrastructure, the solution effectively overcomes the traditional VLAN's limitation of 4094 identifiers and network scalability bottlenecks, forming a logically unified communication plane. Combined with OPC UA and DDS transmission protocols, AGV PLC data can be integrad into the ROS 2 distributed control system, enabling cross-platform command delivery and status monitoring. Experimental results demonstrate that 5G-VXLAN technology ensures stable and real-time data interaction during AGV mobility, while the integration of OPC UA and DDS enables conversion and transmission of data across different protocols.

  • FENG Ji-ke, ZHU Ya-guang, ZHANG Ming-huan, ZHANG Jie
    Manufacturing Automation. 2025, 47(12): 28-36. https://doi.org/10.3969/j.issn.1009-0134.2025.12.003

    Aiming at the rank-deficiency problem of the mathematical model for small-scale parameter identification of permanent-magnet synchronous motors used in robot joints, a stepwise model reference adaptive online identification method based on Lyapunov stability theory is designed. Firstly, the static inductance is identified offline in the static state as a known parameter, and a model reference adaptive system is constructed to identify the stator resistance and permanent-magnet flux linkage online. After the identification results of the two parameters get converge, they are used as known parameters in a new model reference adaptive system to identify the dynamic inductance. This hierarchical decoupling identification mechanism effectively overcomes the uncertainty of the identification results caused by the rank-deficient mathematical model. Experimental and simulation results show that this method has high identification accuracy and fast identification speed under conditions of low resistance values of 0.1 Ω, small inductance of 0.2 mH, and magnetic flux linkage of 7.72 mWb, providing a feasible solution for obtaining accurate parameters of micro and small permanent-magnet synchronous motors.

  • HUANG Hong-sheng, WU Ji-chun, XIE Xin, SI Zhe
    Manufacturing Automation. 2025, 47(12): 37-44. https://doi.org/10.3969/j.issn.1009-0134.2025.12.004

    Aiming at the problem that the velocity tracking accuracy of flexible linear electromechanical actuators decreases due to friction, a friction compensation method based on BP neural network is proposed. This method constructs a data-driven friction model and uses BP neural network to describe the nonlinear mapping relationship between velocity, position and friction force, as well as the dynamic behavior of zero-speed friction. The rigid-flexible coupled dynamic model of the flexible linear electromechanical actuator is established, and the linear motion experimental platform of the flexible cable is constructed. The performance before and after the introduction of the friction model is compared. The experimental results show that under the sinusoidal velocity command of 50 mm/s and 1 Hz, the velocity tracking accuracy of the linear electromechanical actuator after using the friction model is improved from 0.85 mm to 0.29 mm, and the deadband time is shortened from 0.021 s to 0.003 s. Under the sinusoidal velocity command of 100 mm/s and 1 Hz, the velocity tracking accuracy of the linear motor actuator after using the friction model has been improved from 0.93 mm to 0.25 mm, and the deadband time has been shortened from 0.012 s to 0.003 s. The experimental results verify that this friction compensation method can improve the velocity tracking accuracy of the flexible linear electromechanical actuator and shorten its deadband time. This method has a good application effect in the weapon station system and plays an important role in improving the rapid response capability of the linear electromechanical actuator.

  • LIANG Jian-hong, YANG Yi-gui, GU Tao, LEI Hong, WANG Peng-fei
    Manufacturing Automation. 2025, 47(12): 45-53. https://doi.org/10.3969/j.issn.1009-0134.2025.12.005

    Hydraulic drive is the primary drive method for heavy-duty robots. The performance of hydraulic pumps directly determines the driving capability and quality of hydraulic systems, and the design of hydraulic pump drive circuits is of critical importance, particularly in terms of precise current control. The Howland current source is widely used in various fields due to its high precision and stability. Based on the traditional Howland current source, this paper analyzes the working principle and load capacity of the related circuit, designs a high voltage and high current constant current source to serve as the hydraulic pump drive circuit, and verifies its reliability through simulation and actual measurement. Compared with traditional designs, the innovative constant current source in this paper greatly improves the output limit, achieving 0~5 V adjustable output and a maximum load current driving capacity of 5 A. Meanwhile, the absolute error of the simulation value is only 0.005 A, and that of the physical circuit measurement value is only 0.1 A. This research realizes high precision, strong load capacity and stable output current for practical engineering applications, provides a solution with high linear consistency and engineering practicability for high voltage and high current precision driving.

  • LI Kuan-kuan, LYU Qing, ZHANG Qiu-ju, ZHENG Kun-ming
    Manufacturing Automation. 2025, 47(12): 75-83. https://doi.org/10.3969/j.issn.1009-0134.2025.12.008

    Due to the multi-degree-of-freedom, strong coupling, and nonlinear characteristics of wheeled humanoid robots, their motion control, especially whole-body motion control, is highly challenging. To address this issue, a whole-body motion control scheme based on robot kinematics and Model Predictive Control (MPC) is proposed. A simplified kinematic model of the wheeled humanoid robot is established, and a quadratic cost function related to the end-effector's pose is defined. The Relaxed Barrier Functions (RBF) are employed to set the constraints for robots to follow during operation, such as joint position limits, control input constraints, collision avoidance constraints, and tip-over prevention constraints. A simulation experiment for end-effector pose planning is designed, and the results demonstrate that the proposed control scheme not only enables the robot to achieve whole-body motion for end-effector control but also satisfies various constraints.

  • ZHAO Chang-yi, BAI Yu-wen, LI Bing-lin, YANG Kong-hua, LIU Chun-bao
    Manufacturing Automation. 2025, 47(12): 122-135. https://doi.org/10.3969/j.issn.1009-0134.2025.12.013

    Currently, wall plastering operations primarily rely on manual labor. Although single-degree-of-freedom rail-guided smoothing plastering equipment has emerged, it still requires human assistance, resulting in low efficiency and high labor costs. To enhance the automation level of wall plastering, a wall-mounted dual-arm plastering robot is designed. The robot adopts a design scheme where dual robotic arms handle spraying and smoothing tasks separately, effectively addressing the issues of uneven spraying thickness and low smoothing efficiency in traditional equipment. The system consists of an autonomous navigation chassis, a concrete mixing tow truck, a dual-arm lifting mechanism, and an adaptive force-controlled smoothing tool. A force-position hybrid control algorithm is proposed, which decouples the force control and position control subspaces through a selection matrix, achieving stable force control and precise position tracking in complex environments. In experimental validation, the robot demonstrates superior flatness and high consistency under various wall conditions, significantly improving construction efficiency and surface quality. Compared to traditional manual methods and single-arm equipment, it respectively enhances operational accuracy and production efficiency by notable margins.

  • YANG Rui-qi, LI Yan
    Manufacturing Automation. 2025, 47(12): 168-176. https://doi.org/10.3969/j.issn.1009-0134.2025.12.017

    With the rapid development of the industrial internet and intelligent manufacturing, digital twin systems have been widely adopted in many industrial scenarios. But, industrial robotic models are often highly complex in geometry, and directly rendering full-resolution models incurs substantial computational and memory overhead. As a result, mesh simplification has become a key technique for improving rendering efficiency while preserving visual fidelity. However, existing simplification algorithms tend to cause the loss of critical geometric features and visual quality when applied to models with fine mechanical structures. To address this problem, a feature-aware mesh simplification algorithm is proposed that automatically identifies and preserves high-curvature regions while ensuring numerical computational stability. The algorithm is evaluated against the QEM-based method and analyzed across multiple model quality dimensions. The experimental results show that, under the same simplification ratio, the proposed method significantly reduces geometric error and achieves better structural consistency and visual fidelity in high-curvature regions. These results indicate that the algorithm effectively enhances the preservation of structural features in industrial robotic models under high-compression scenarios and demonstrates both theoretical importance and practical applicability.

  • WANG Rong-ye, LU Shou-yin
    Manufacturing Automation. 2025, 47(12): 84-92. https://doi.org/10.3969/j.issn.1009-0134.2025.12.009

    To address the challenges in object-oriented grasping by robotic arms in unstructured scenarios—such as unknown objects, complex environmental interference, and stringent real-time requirements— this paper proposes a Heatmap-Guided 6-DOF Grasp Detection (HGGD) method that integrates Coordinate Attention (CA) with a Memory-Augmented Neural Network (MANN), establishing a target-guided grasping model. This approach incorporates a CA module within the pixel encoder. After high-resolution feature map output but before dimensionality reduction, key information is weighted by the CA channel branches, and target regions are located by spatial branches, thereby target perception and location accuracy are enhanced. During feature fusion, MANN is embedded to initialize a memory bank with multi-scale features from the training set. During fusion, read/write heads access historical features and fuse them with current features, updating the memory bank based on confidence thresholds to mitigate information decay and redundancy inherent in traditional fusion. Finally, using the object anchor boxes output by the object detection model, point cloud data undergoes sparsification to reduce computational overhead. The evaluation results based on the GrASPNET-1 billion dataset show that, compared with the benchmark model, the proposed method not only achieves a significant improvement in the crawling success rate index, but also effectively shortens the reasoning time consumption of the target crawling detection task. This solution achieves a coordinated improvement in grasping accuracy and efficiency, providing technical support for the precise grasping of robotic arms in complex real-world scenarios.

  • CHEN Bo-han, ZHAO Shu-yong, LIU Yan-min, WEN Li
    Manufacturing Automation. 2025, 47(12): 177-182. https://doi.org/10.3969/j.issn.1009-0134.2025.12.018

    Aiming at the problems existing in space debris capture under microgravity environment, such as easy fragmentation caused by rigid collisions, low mechanism folding ratio, and poor drive adaptability, this paper proposes a fluid-driven capture mechanism that integrates origami structure and soft robotics technology. This mechanism is designed based on the analysis and optimization of the Youshimura origami structure. It realizes trajectory-controllable folding storage and unfolding wrapping through inner cavity pressure adjustment, and has both high folding ratio (≥1:4) and compliant contact characteristics. To verify the feasibility of the scheme, two types of simulation systems were built: 1) A microgravity contact capture multi-body dynamics simulation based on Abaqus, which analyzes the contact force, wrapping success rate and capture efficiency under different debris shapes; 2) A vision-control integrated system based on CoppeliaSim platform co-simulation, which uses YOLOv5 to realize debris pose recognition and PID control algorithm to generate drive commands, so as to verify the automatic capture accuracy under microgravity disturbance. The simulation results show that the wrapping success rates of the mechanism for cubic debris (55 mm×55 mm×55 mm), cylindrical debris (Φ50 mm×80 mm) and plate-like debris (400 mm×200 mm×2 mm) are 93%, 80% and 33% respectively, which meets the requirements for compliance and autonomy in microgravity space debris capture.

  • LI Yan, XU Hui, HAN Chang-kun
    Manufacturing Automation. 2026, 48(4): 129-136. https://doi.org/10.3969/j.issn.1009-0134.2026.04.014

    Facing the critical strategic demand for enhancing the resilience and security of industrial and supply chains at the national level, the paper focuses on digital twin technology as a key enabler for driving the digital and intelligent transformation of warehousing and logistics systems. A three-stage evolutionary trajectory is systematically outlined, progressing from static modeling to dynamic synchronization and ultimately to intelligent decision-making. In view of the structural challenges in traditional warehousing and logistics systems such as data silos, lagging equipment maintenance, rigid processes, insufficient flexibility, and lack of holistic optimization, this study constructs a systematic empowerment pathway encompassing five dimensions: “omni-domain data integration—intelligent operations and maintenance reconstruction—process simulation optimization—flexible collaborative scheduling—global decision simulation.” The construction of a unified data foundation enables standardized access and high-quality governance of multi-source heterogeneous data; Deployment of a predictive maintenance platform significantly enhances equipment reliability and system continuity; Application of virtual simulation and dynamic optimization technologies achieves intelligent restructuring of warehouse operations and efficiency multiplication; The construction of an elastic resource scheduling mechanism enhances the adaptability of the system to dynamic demands; By building a full-chain simulation decision-making sandbox, the system is boosted from empirically driven local decisions to data- and model-driven global autonomous optimization. In the practical application within the chemical fiber industry, this technology system has increased production efficiency by 5%, reduced operational costs by 15%, improved equipment utilization by 10%, and shortened fault-handling time by 30%. Looking ahead, digital twin technology will evolve toward “holistic coordination and intelligent symbiosis,” providing critical support for constructing autonomous as well as controllable modern warehousing and logistics systems and cultivating new productive forces.

  • WANG Zhen-lin, SUN Yi-chen, DU Yi-chao, LI Min, BAI Hua
    Manufacturing Automation. 2026, 48(8): 1-11. https://doi.org/10.3969/j.issn.1009-0134.2026.08.001

    New-generation intelligent manufacturing is not simply the addition of artificial intelligence, the industrial Internet, or digital tools onto existing manufacturing systems. Rather, it is centered on the deep integration of artificial intelligence technologies with advanced manufacturing technologies, driving manufacturing systems from “connectivity and visibility” toward closed-loop optimization involving “perception, decision-making, execution, and feedback”. Compared with the earlier concept of “Internet Plus Manufacturing”, “AI Plus Manufacturing” no longer focuses merely on the interconnection of equipment, data, and business processes. Instead, it reconstructs product research and development, production and manufacturing, quality control, supply chain collaboration, and service models, through the coordination of industrial data, model algorithms, manufacturing equipment, process knowledge, and organizational capabilities. Based on existing policy contexts and research foundations, this paper reviews the connotations, key technologies, implementation scenarios, and practical constraints of new-generation intelligent manufacturing, focusing on directions such as smart factories, intelligent products, the industrial Internet, digital twins, trustworthy industrial AI applications, and manufacturing servitization. The study concludes that the key to new-generation intelligent manufacturing lies not in the advancement of individual technologies, but in the formation of sustainable system integration capabilities among manufacturing knowledge, data governance, equipment capabilities, industrial software, standards systems, and organizational processes.

  • LI Jia-shun, SONG Rong-rong, ZHAO Er-xun, ZHOU Ze-li, LIU Ji-han
    Manufacturing Automation. 2026, 48(1): 180-188. https://doi.org/10.3969/j.issn.1009-0134.2026.01.020

    To address the inefficiency of traditional manual visual inventory counting and the high deployment costs of existing automated solutions in Automated Storage and Retrieval Systems (AS/RS), this paper proposes an intra-warehouse visual inventory system based on modular visual devices. A retrofit-free stacker-accessible modular visual inventory device is designed. On the basis of a YOLOv8-powered visual inventory algorithm for multi-surface information fusion from a single view, the accurate counting of complex stack patterns (e.g., non-full stacks and staggered stacks) is effectively solved by combining front pallet layer identification with top pallet layer counting. The system also features a non-intrusive integration architecture between the Warehouse Visual Stock System (WVSS) and the existing Warehouse Control System (WCS) via a database, enabling dynamic task scheduling and data closed-loop. Experimental results on four palletized cargo datasets demonstrate a stack quantity recognition accuracy of 96.3% with a processing time of 0.11 seconds per storage location. This solution provides a new engineering path for automated warehousing, characterized by high precision, low deployment cost, and minimal operational disruption.

  • HUANG Kun, LI Tian-ming, YIN Jian-hua, CAO Ben, CAO Zhao
    Manufacturing Automation. 2026, 48(2): 126-136. https://doi.org/10.3969/j.issn.1009-0134.2026.02.013

    To address the issues of suboptimal performance, and high rates of missed detection and false detection in steel surface defect detection technology in industrial production environments, an improved YOLO11 algorithm called GCI-YOLO11 has been proposed. Firstly, in the feature extraction part, the GC-C3k2 module based on the GCNet attention mechanism was designed to enhance the algorithm’s capability to extract contextual feature information from images. Secondly, the CARAFE upsampling algorithm was introduced in the neck part to enable the algorithm to aggregate contextual information within a large receptive field, reducing the loss of feature information during the upsampling process. Finally, Inner-CIoU was used to replace CIoU for loss function optimization, and auxiliary regression box was introduced to improve detection accuracy and model generalization capability. Experimental results show that, GCI-YOLO11 achieved improvements of 2.9% and 2.3% in mAP 50 and mAP 50-95 on the NEU-DET dataset, and 1.6% and 0.3% in mAP50 and mAP50-95 on the GC10-DET dataset, showing better detection performance.

  • LI Jia-shun, ZHAO Er-xun, SONG Rong-rong, LIU Hai-tao, LYU Zhen-qi
    Manufacturing Automation. 2026, 48(2): 137-148. https://doi.org/10.3969/j.issn.1009-0134.2026.02.014

    During the inbound phase of warehouse logistics, it is necessary to inspect, count the incoming goods, and update the inventory records. Traditional inbound inventory counting methods require manual visual inspection and the use of handheld terminal devices to input inventory information. Based on this scenario and aligning with the trend of automation and intelligence transformation in modern logistics, an automated visual stocktaking algorithm for pallet-loads using multi-camera collaboration was designed. Multi-angle images of the pallet-load are captured, and deep learning models are used to detect cartons and the pallet. Specifically, for the front, rear, left, and right side view images, an object detection model is used to calculate the quantity, types, and arrangement of the cartons. For the top view image, an instance segmentation model combined with depth information is used to calculate the number of cartons on the top layer of the pallet-load. The detection results from the five surfaces of the pallet-load are comprehensively processed, and the total number of cartons in the entire pallet-load is calculated through spatial logic reasoning. During the counting process, anomaly detection is performed on the pallet-load based on the positional relationships and type information among cartons, achieving full automation of the entire inventory stocktaking task. An experimental setup was built on a conveyor for testing, and it was found that this stocktaking algorithm achieves an average accuracy of 98%. The calculation process of this algorithm is traceable, solving the problems of traditional manual counting, namely high labor cost and the susceptibility to errors caused by fatigue and distraction. This research, starting from the warehouse inbound process, has realized an automated workflow for pallet-load stocktaking, providing both solutions and theoretical foundations for logistics automation.

  • XU Bang-wei, MAO Ze-tao, DAI Liu-yu, CHEN Bai-ping
    Manufacturing Automation. 2025, 47(11): 40-50. https://doi.org/10.3969/j.issn.1009-0134.2025.11.005

    Aiming at the critical problem that real-time industrial defect detection systems are difficult to balance detection speed, accuracy and computational resource constraints in edge computing environments, a fast lightweight industrial defect detection architecture based on an efficient hybrid state space model is proposed. The architecture designs a C2f_EfficientViM_CGLU fast feature extraction module that deeply integrates the global sequence modelling capability of the visual state space model with the efficient local feature enhancement mechanism of convolutional gated linear units, achieving fast and efficient extraction of complex defect features. The HSM-SSD (Hidden State Mixer based State Space Duality) efficient state space modeling mechanism is introduced to process long sequence dependencies with O(n) linear complexity, significantly improving the fast recognition capability for irregularly shaped and sparsely distributed defects. A Slimneck fast lightweight feature fusion network is constructed through GSConv (Ghost Shuffle Convolution) sparse convolution and VoV-GSCSP (Variance of Variance Ghost Shuffle Cross Stage Partial) efficient feature fusion strategies, achieving significant improvements in inference speed and extreme model compression while ensuring detection accuracy. Comparative experimental results on NEU-DET and APDDD standard datasets show that the proposed network architecture achieves mAP50 of 92.13% on NEU-DET dataset, improving 9.77 percentage points compared to the baseline model YOLOv8n, with only 2.9 M parameters and 7.7 GFLOPs computational complexity, reducing parameters by more than 93% compared to the traditional Faster-RCNN method. The mAP50 on APDDD dataset reaches 89.68%, validating the good generalization performance and fast detection capability of the method. This study provides a theoretical foundation and an efficient and feasible fast detection technical solution for real-time quality control in Industry 4.0 intelligent manufacturing environments.

  • CAI Hua-fei, CHEN Yu, CHEN Nuo, YU Han, CAI Hong-ming
    Manufacturing Automation. 2026, 48(2): 1-22. https://doi.org/10.3969/j.issn.1009-0134.2026.02.001

    The rapid advancement of Unmanned Aerial Vehicle (UAV) technology has spurred its widespread application across military reconnaissance, civil monitoring, and logistics delivery. However, as mission requirements grow in diversity and complexity, traditional avionics system architectures struggle to meet the demands for rapid functional expansion and dynamic reconfiguration. In response, a service-oriented avionics architecture has emerged, which enhances the mission flexibility, system maintainability, and functional scalability of UAV systems by decomposing complex functions into independent, minimal, and reusable atomic service units. This paper systematically reviews the evolution of UAV avionics system architectures, provides an in-depth analysis of the theoretical foundations, modeling approaches, and core principles of service decompositions. Building on this foundation, the paper discusses the challenges of the service-oriented transformation for UAVs and explores future development trends in service model standardization, intelligent decomposition, and real-time governance, aiming to offer theoretical references and technical guidance for this field.

  • MA Jin, LIU Chang, LIU Dong-yang
    Manufacturing Automation. 2026, 48(4): 1-10. https://doi.org/10.3969/j.issn.1009-0134.2026.04.001

    To address the common challenges in industrial equipment bearing fault diagnosis, including cross-operational condition transfer difficulties and target domain label scarcity, this study proposes an intelligent diagnostic method integrating feature enhancement and domain-adversarial learning. By constructing a Symmetric Dot Pattern feature map based on wavelet transform (WT-SDP), the original one-dimensional vibration signals are mapped into two-dimensional geometric-semantic feature representations, effectively addressing the limitations of traditional methods in translation invariance and inefficient modeling of long-range dependencies. This approach significantly improves feature separability and noise robustness. Furthermore, a domain-adversarial neural network (DANN) framework is designed, incorporating a gradient reversal layer to achieve multi-scale alignment of feature distributions between source and target domains. This eliminates reliance on target domain labels while mitigating domain shift issues, thereby enhancing model generalization under heterogeneous operating conditions. Experimental validation on cross-domain transfer tasks from the Case Western Reserve University bearing dataset (CWRU) and the Dynamic Diagnostic System testbench (DDS) demonstrates that the proposed method achieves an average diagnostic accuracy of 95% on target domains, representing a 20% improvement over baseline models. This research provides a novel solution for cross-domain fault diagnosis in industrial equipment under complex operating conditions, with the proposed method showcasing significant advantages in domain adaptation efficiency.

  • HOU Jun-xing, WEI Liu-jie, AN Xiao-dong, ZHONG Jia, LIU Liu
    Manufacturing Automation. 2025, 47(11): 168-174. https://doi.org/10.3969/j.issn.1009-0134.2025.11.019

    Aiming at the problems of many parameters and large amount of calculation in the existing gear surface defect detection algorithm, a surface defect detection method for lightweight gears based on improved YOLOv8s is proposed. Firstly, part of the ordinary convolution in the YOLOv8s network model is replaced by the Adown convolution module, which improves the capability of the model to capture image features and reduces the parameter amount. Secondly, the lightweight module C2f-Faster and the channel mixer CGLU are integrated to construct a new C2f-Faster-CGLU module, which reduces the model size and calculation cost. Finally, the LSCSBD detection head is designed to further reduce the number of model parameters. The experimental results show that compared with the original model, the improved YOLOv8s model has a 58.6% reduction in the number of model parameters, a 46.1% reduction in GFLOPs, a 57.3% reduction in model size, and an average accuracy of 98.8%. The improved algorithm effectively reduces the memory occupation of the model, and the model is lighter, which provides a reference for the real-time detection of gear surface defects in small mobile devices.

  • LIANG Rui-dong, LI Xiao, LI Xi-gang
    Manufacturing Automation. 2026, 48(2): 99-108. https://doi.org/10.3969/j.issn.1009-0134.2026.02.010

    In order to address the problems encountered during glass defect detection, such as reliance on manual intervention, strong interferences from complex backgrounds, and difficulties in distinguishing categories, an improved algorithm based on YOLOv8s is proposed. The detection performance is improved by integrating omni-dimensional dynamic convolution (ODConv) and Squeeze-and-Excitation attention mechanism (SEAttention). This algorithm replaces traditional convolution with ODConv in the backbone feature extraction network of YOLOv8, and enhances the feature capture capability for subtle defects on glass surfaces by dynamically adjusting the overlap and receptive field of convolution kernels; In the feature fusion stage, SEAttention is introduced to enhance effective defect features and suppress background noise by reallocating the weights of channel dimensions. The experimental results showed that the improved YOLOv8s achieved a mAP of 96.8% on a self-made industrial glass defect dataset, an increase of 1.9% compared with that before improvement. The comprehensive mAP of different IOU thresholds increased by 1.8%, and the detection speed met the real-time detection requirements of industry. The performance is comprehensively improved, providing an efficient solution for automated detection and classification of glass surface defects.

  • ZHAO Da-xu, WANG Kang, ZHANG Yun, CHEN Ye, YOU Qi
    Manufacturing Automation. 2026, 48(1): 173-179. https://doi.org/10.3969/j.issn.1009-0134.2026.01.019

    To address the challenges faced by mobile robots in overcoming obstacles in unstructured environments such as agricultural inspections and disaster rescue, this study proposes a design scheme for a four-wheeled mobile chassis that integrates a rocker-steering suspension with a crank-slider mechanism. First, kinematic and dynamic models of the walking mechanism were established to analyze the influence of key configuration parameters (e.g., support wheel center distance, hinge distance) on terrain adaptability and load platform posture. A multi-objective optimization method was employed to determine the optimal parameter combination (LF =200 mm,k 1=0.9). Second, a three-dimensional virtual prototype was developed by integrating a crank-slider mechanism and symmetric frame design. Dynamic simulations conducted on the RecurDyn platform validated the chassis performance in traversing 18 mm speed bumps and 20 mm semi-cylindrical obstacles, showing pitch angle fluctuations within ±3°and peak torque demand ≤15 N·m. Finally, prototype tests demonstrated that the chassis can stably cross 90 mm speed bump-type obstacles under a 75 kg load, with a linear motion speed of 1.8 m/s and a path deviation of less than 20 mm/5 m. The results indicate that this design significantly enhances the terrain adaptability of mobile robots in unstructured environments, providing a reliable mobile platform for agricultural inspection, logistics, disaster rescue, and similar scenarios.

  • NIU Chen-yu, LIU Xin, LI Min, HUANG Ji-yuan, HU Xiao-qiang
    Manufacturing Automation. 2026, 48(5): 1-10. https://doi.org/10.3969/j.issn.1009-0134.2026.05.001

    A large amount of process knowledge accumulated during industrial programmable logic controller (PLC) development exists in tacit form, embedded in historical control logic and dependent on engineers' experiential judgment, making it difficult for large language models to directly utilize. To address this problem, this paper proposes a systematic engineering method that transforms tacit process knowledge into reusable process templates with hierarchical structure and control topology details, through a dual-layer knowledge graph schema and a bidirectional fusion construction strategy. Using PLC code generation as a downstream evaluation task, we target two structural barriers — knowledge accessibility and functional association completeness — and validate the effectiveness of the proposed method through a knowledge granularity gradient experiment and a graph-versus-vector retrieval recall comparison experiment, respectively. Experimental results demonstrate that, on code-segment-level tasks, the process templates automatically extracted by the proposed method approach the performance of manually written pseudocode-level fine-grained knowledge specifications in terms of control requirement information supply; on functional-block-level tasks, the graph-structured knowledge organization successfully mitigates the systematic deficiency of vector retrieval in preserving functional association completeness.

  • DENG Xing-yu, CHEN Bo, XIE Xiao-xuan, ZHANG Hu, CHEN Jia-cai
    Manufacturing Automation. 2026, 48(4): 158-166. https://doi.org/10.3969/j.issn.1009-0134.2026.04.017

    Aiming at the problems of cumbersome deployment and poor adjustment flexibility associated with QR code navigation, which is widely used in current warehouse robotics, this paper designs a global path planning method based on predefined paths and a secondary positioning and pose adjustment method based on the PL-ICP (Point-to-Line Iterative Closest Point) algorithm. The system utilizes ROS2 (Robot Operating System 2) with 2D LiDAR, IMU, and wheel odometry sensors. The methodology employs the Cartographer laser SLAM algorithm to construct a 2D grid obstacle map and robot localization data files. A self-developed RViz2 plugin is utilized to create navigation map files, upon which the A* algorithm generates global paths. The Navigation2 framework is then implemented for local path planning and motion control. Upon arrival at a designated target point, the robot calculates its pose deviation using laser feature data and corrects its position via a PID control algorithm. Simulation tests conducted on the Gazebo platform demonstrate that, after secondary positioning and pose adjustment, the robot achieves a positional accuracy of ±3 mm in the x and y directions, and a heading angle (θ) accuracy of ±0.1°.

  • LIU Bing-qing, ZHENG Shuai, WANG Yi-chen, HONG Jun
    Manufacturing Automation. 2025, 47(11): 1-14. https://doi.org/10.3969/j.issn.1009-0134.2025.11.001

    In recent years, indigenously developed, aerospace-specific 3D structural design systems in China have undergone robust development, with notable achievements in the R&D of core components. However, with the widespread adoption of Large Language Models (LLMs), establishing an effective interface between 3D structural design and AI-driven methodologies remains a central challenge. Furthermore, existing LLMs lack the capacity for precise reasoning over 3D geometry and complex physical fields, such as aerodynamics, which precludes their direct application in the intelligent design of aircraft structures. Among aerospace structural components, the aircraft wing is critical for generating lift. Its design process is highly complex, heavily reliant on expert experience, and tightly coupled with aerodynamic performance. Consequently, traditional design paradigms are characterized by lengthy iteration cycles and substantial costs. To address this challenge, this paper presents Airfoil-LLM, an intelligent design interface for the 3D modeling of aircraft wings, using the wing as a representative case study. Based on the Transformer architecture, this interface integrates natural language encoding with the decoding of CAD modeling sequences to enable intelligent and automated 3D wing generation. To support model training and validation, we have constructed a large-scale 3D wing design dataset. This comprehensive dataset comprises parameterized 3D CAD models, a wide spectrum of flight conditions from subsonic to supersonic regimes, key aerodynamic performance metrics, and multi-level textual descriptions. Experimental results demonstrate that Airfoil-LLM is capable of deeply comprehending textual descriptions ranging from simple geometric attributes to complex, coupled "geometry-performance" requirements. The system generates 3D models that align closely with the design targets in both geometric shape, achieving a maximum Intersection over Union (IoU) of 0.831, and aerodynamic performance.

  • LI Bing-lin, BAI Yu-wen, ZHAO Chang-yi, YANG Kong-hua, LIU Chun-bao
    Manufacturing Automation. 2026, 48(3): 1-8. https://doi.org/10.3969/j.issn.1009-0134.2026.03.001

    In the discrete control system of the robotic arm, the traditional sliding mode method often encounters high-frequency chattering problems and control failure caused by input saturation. To break through this bottleneck, this paper proposes a trajectory tracking control method for the robotic arm based on anti-saturation sliding surface and adaptive reaching rate, aiming to address the influence of input saturation and external disturbances on control performance. By directly integrating the anti-saturation suppression factor into the design of the discrete sliding surface, dual constraints control over both input amplitude and input variation rate are achieved, and an adaptive reaching rate is constructed to suppress the chattering in the traditional discrete sliding reaching law, improving the stability and tracking accuracy of the system under disturbances. The hyperbolic tangent function is used instead of the sign function to further eliminate high-frequency chattering phenomena and improve control smoothness. Simulation results show that the proposed control method achieves smaller joint position and velocity errors on a two-degree-of-freedom robotic arm, converging within 0.35 seconds, with steady-state error controlled within 0.01 rad, and the maximum steady-state error is reduced by 74.16% and 68.71% compared with the traditional method. The root mean square error is reduced by 57.47% and 19.07%, respectively, verifying its superiority in anti-saturation and chattering suppression. The research in this paper provides an effective control strategy for the control application of robotic arms in complex environments with input saturation and disturbances, with high application value and engineering significance.

  • LIU Tong-rui, ZHU Li
    Manufacturing Automation. 2025, 47(11): 156-167. https://doi.org/10.3969/j.issn.1009-0134.2025.11.018

    To address potential limitations in existing attention mechanisms, such as insufficient learning capability and inadequate focus on critical targets, as well as problems in traditional steel surface defect detection networks like low detection accuracy and single-scale feature extraction, a novel iterative Recurrent Channel Attention (RCA) mechanism is designed. This mechanism independently calculates attention weights along horizontal and vertical directions, enhancing the model's positional awareness of features. By employing a recursive strategy to iteratively refine the fused results and reapplying the generated weights to input features, RCA significantly strengthens the network's ability to capture key feature information within similar targets. This substantially improves detection capability for objects at various locations and scales. The RCA mechanism is integrated into the YOLOv8 network architecture, resulting in an improved steel surface defect detection network based on YOLOv8n. Firstly, Switchable Atrous Convolution (SAConv) is introduced to expand the model's receptive field and enhance its perception and adaptability to multi-scale features, enabling more precise feature extraction. Secondly, an adaptive weighted feature fusion module is incorporated into the Neck section of the network, effectively combining global and local features to strengthen multi-level feature fusion capabilities. Finally, the designed RCA mechanism is implemented, followed by extensive ablation and comparative experiments. The experiments demonstrate that the YOLOv8 model with only RCA achieves an mAP@0.5 of 81.1% on the NEU-DET steel surface defect dataset, representing a 3.4% improvement over the baseline model. On the GC10-DET dataset, it achieves an mAP@0.5 of 63.2%, a 1.7% improvement. The complete YOLO-SCR network reduces computational complexity by 12% compared to the baseline model. It achieves an mAP@0.5 of 84.0% on NEU-DET (a 6.3% improvement) and 64.1% on GC10-DET (a 2.6% improvement), achieving a better balance between detection accuracy and inference speed.

  • LU Yi-hui, LIN Zhi-wei, WANG Zheng-tuo, FU Jian-zhong
    Manufacturing Automation. 2026, 48(4): 19-27. https://doi.org/10.3969/j.issn.1009-0134.2026.04.003

    Part machining accuracy inspection is a critical aspect of production, and efficient deviation analysis methods can save costs while ensuring part quality. For three-dimensional point clouds obtained through laser 3D scanning, a 3D part deviation analysis system has been designed. By comparing the scanned data with the CAD design model of the part, the deviation of the part is calculated and visually displayed. The system is divided into three parts: data preprocessing, alignment, and deviation calculation. In the data preprocessing stage, the CAD 3D model is discretized into a point cloud, while points from the scanned data are extracted, and key points from both are identified to facilitate alignment. During the alignment stage, an OBB segmentation box coarse registration algorithm is designed for coarse alignment, followed by the ICP algorithm for fine alignment, effectively preventing the ICP algorithm from falling into local optima. In the deviation calculation stage, a point-surface substitution method is used to compute the initial deviation values, and finally, an outlier processing system is designed to handle anomalies. Compared with professional software, the measurement error is at the micrometer level.

  • SHEN Jun-jian, YU Jian-feng, HUA Chun-jian
    Manufacturing Automation. 2026, 48(3): 9-16. https://doi.org/10.3969/j.issn.1009-0134.2026.03.002

    In order to maintain the bending ability of the pneumatic soft gripper while improving the fingertip contact force of the fingers, a dual module composite pneumatic soft gripper with rope-traction and collaborative grasping was designed. The finger combines two different pneumatic network structures, a slow pneumatic network and a fast pneumatic network. The front end of the finger uses a fast pneumatic network to ensure the bending angle, while the back end uses a slow pneumatic network to provide greater fingertip contact force. At the same time, a rope traction drive is added to further improve the fingertip output force during finger grasping. A mathematical model was established based on the Yeoh model to describe the relationship between finger bending angle and input air pressure. ANSYS was used to perform finite element simulations of the bending angle and fingertip contact force of the designed dual module composite pneumatic soft finger under different air pressures. A physical object of soft fingers was manufactured using 3D printing and deposition casting. The bending angle and fingertip contact force of the fingers were measured, and grasping experiments were conducted using a gripper. Experiments have shown that the maximum bending angle of a single soft finger can reach 164°, and the maximum fingertip contact force is 2.75 N. The grasping results show that this claw has strong adaptability to objects of different shapes and good load capacity, and has good grasping effects on objects of different diameters.

  • CHEN Hui, XUE Jian-bin
    Manufacturing Automation. 2026, 48(2): 78-85. https://doi.org/10.3969/j.issn.1009-0134.2026.02.008

    To accurately identify the dynamic parameters of a six-degree-of-freedom collaborative robot, an identification algorithm based on physical consistency called Iteratively Reweighted Least Squares-Semidefinite Programming (IRLS-SDP) has been proposed. Firstly, the Newton-Euler dynamic model of the 6-DoF collaborative manipulator is established, employing a modified Coulomb-viscous friction model. Then, this dynamic model is linearized. To address the lack of consideration for physical meaningfulness in identified parameters during the identification process, constraints enforcing physical consistency are imposed. An excitation trajectory combining Fourier series with quintic polynomials is designed and optimized with the condition number as the optimization objective. Finally, dynamic parameter identification experiments are conducted: the collaborative robot executes the excitation trajectory, and experimental data is acquired and processed to obtain the regression matrix and actual joint torques. A comparative analysis of the identification results between the IRLS-SDP method and the conventional Least Squares (LS) method is performed. Experimental results demonstrate that the IRLS-SDP algorithm achieves superior overall identification performance. Specifically, it yields higher-precision torque predictions compared to LS, exhibits better model tracking fidelity, and identifies parameters that exhibit significantly better physical consistency.

  • LING Na, CHEN Jie, YANG Jin-chuan
    Manufacturing Automation. 2026, 48(2): 40-47. https://doi.org/10.3969/j.issn.1009-0134.2026.02.004

    In advanced intelligent manufacturing, the detection of surface defects on spray-painted components is of paramount importance for ensuring product quality. Conventional photometric stereo vision method, grounded in the Lambertian reflectance assumption, is prone to significant reconstruction inaccuracies when applied to non-Lambertian surfaces, such as high-gloss spray-painted finishes, due to the presence of strong specular reflections. To address this limitation, this paper presents an enhanced photometric stereo vision method that integrates polarization theory. The proposed approach employs orthogonally polarized images to decouple the diffuse and specular reflection components inherent in the reflected light. The isolated diffuse component is then utilized to formulate an overdetermined linear system of equations for solving the surface normal vector field. Experimental evaluations demonstrate that, in comparison to traditional methods, this improved method effectively suppresses highlight interferences while achieving superior reconstruction fidelity for surface morphology. Consequently, it significantly enhances the reconstruction precision and robustness for non-Lambertian surfaces, offering a more reliable solution for surface defect inspection in precision manufacturing scenarios.

  • ZUO Yi-han, WANG Ming-rui, CAO Xiao-qing, WANG Hai-tao
    Manufacturing Automation. 2026, 48(3): 26-35. https://doi.org/10.3969/j.issn.1009-0134.2026.03.004

    To enhance the compliance of human-robot interaction and the responsiveness to operational intent in collaborative robots operating within free space, this paper proposes an adaptive impedance control strategy based on operational intent. Current research on adaptive impedance/admittance control suffers from insufficient system stability analysis, reliance on additional biosensors, or excessive algorithmic complexity, thereby limiting its application in practical dynamic interaction scenarios. This paper aims to minimise energy consumption during human-robot interaction. By analysing the impact of operational forces and end-effector velocity on system power, a dynamic mapping relationship between damping parameters and operational intent is derived. An adaptive impedance model is established that adjusts its own damping coefficient based on load force and motion velocity, achieving low damping, high velocity, and high responsiveness during dragging operations, while maintaining high damping for precision during manipulation of delicate components. Trailing experiments demonstrate Pearson correlation coefficients exceeding 0.9789 for force-displacement responses across all directions at the robotic end-effector. Under irregular external forces, motion remains smooth with rapid adaptive impedance parameter adjustments, validating this strategy's effectiveness and robustness within dynamic, uncertain human-robot interaction scenarios.

  • HE Yu-guang, LU Chen-xu, GUO Xu-chao, LI Zeng-xue, JIN Guo-qiang
    Manufacturing Automation. 2026, 48(1): 127-134. https://doi.org/10.3969/j.issn.1009-0134.2026.01.014

    In order to reduce the monitoring and operating pressure of operators during deep peak shaving, an intelligent desulfurization control system is proposed to address the problems of poor measurement accuracy and large inertia and delay in the controlled objects that prevented long-term stable automatic operations. By using BP neural network, a mapping relationship is constructed between signals such as flue gas flow rate, SO2 concentration in the raw flue gas and slurry pH to achieve soft measurement of slurry pH value; Replacing conventional PID with variable structure predictive control and combining it with more accurate and reasonable feedforward signals ensures the control effect of the desulfurization system under rapidly changing load and coal quality conditions. Later, utilizing the unit ICS system, the desulfurization intelligent control system is successfully applied to a 650 MW unit. The operation results show that after the system is put into operation, the SO2 concentration at the outlet is stably controlled within 25 mg/m3, and the deviation between the pH value of the slurry and the set value is kept within 0.2, and there are no significant fluctuations during the variable load and pH meter flushing process. The desulfurization is automatically put into operation for a long time, effectively reducing the operating pressure of the operators.