A Real-Time Realization Method for the Pneumatic Positioning System of the Industrial Automated Production Line Using Low-Cost On–Off Valves
In the industrial automated production line, how to use the existing low-cost pneumatic equipment to obtain the best positioning effect has become a significant engineering problem. In this paper, a differential switching method is proposed in a pneumatic servo system consisting of four low-cost on–...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Actuators |
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| Online Access: | https://www.mdpi.com/2076-0825/10/10/260 |
| _version_ | 1797515655712342016 |
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| author | Zhonglin Lin Qi Xie Qiang Qian Tianhong Zhang Jiaming Zhang Jiaquan Zhuang Weixiong Wang |
| author_facet | Zhonglin Lin Qi Xie Qiang Qian Tianhong Zhang Jiaming Zhang Jiaquan Zhuang Weixiong Wang |
| author_sort | Zhonglin Lin |
| collection | DOAJ |
| description | In the industrial automated production line, how to use the existing low-cost pneumatic equipment to obtain the best positioning effect has become a significant engineering problem. In this paper, a differential switching method is proposed in a pneumatic servo system consisting of four low-cost on–off valves for more precise control and lower prices. All valves are simultaneously open at the initial stage of each control period, and the differential closing time of the desired valves is calculated through the theoretical models. A sliding mode controller is applied with the proposed method, and the system stability is proven. The real-time control setup including three software layers is proposed to implement the algorithm. Several experiments are performed on a real-time embedded controller. Average 0.83% overshoot and 0.18 mm steady-state error are observed in the step response experiment. The highest frequency of sine wave that can be tracked is 1 Hz, and the average error is 1.68 mm. The maximum steady-state error is about 0.5 mm in the step response under payloads of 5.25 kg. All the simulation and experimental results prove the effectiveness of the control method. |
| first_indexed | 2024-03-10T06:48:07Z |
| format | Article |
| id | doaj.art-5534aa14091945558ccd3f2eb99747f8 |
| institution | Directory Open Access Journal |
| issn | 2076-0825 |
| language | English |
| last_indexed | 2024-03-10T06:48:07Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj.art-5534aa14091945558ccd3f2eb99747f82023-11-22T17:03:07ZengMDPI AGActuators2076-08252021-10-01101026010.3390/act10100260A Real-Time Realization Method for the Pneumatic Positioning System of the Industrial Automated Production Line Using Low-Cost On–Off ValvesZhonglin Lin0Qi Xie1Qiang Qian2Tianhong Zhang3Jiaming Zhang4Jiaquan Zhuang5Weixiong Wang6School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaAECC Aero-Engine Control System Institute, Wuxi 214100, ChinaCollege of Energy and Electrical Engineering, Hohai University, Nanjing 210016, ChinaJiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaJiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaSchool of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaSchool of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaIn the industrial automated production line, how to use the existing low-cost pneumatic equipment to obtain the best positioning effect has become a significant engineering problem. In this paper, a differential switching method is proposed in a pneumatic servo system consisting of four low-cost on–off valves for more precise control and lower prices. All valves are simultaneously open at the initial stage of each control period, and the differential closing time of the desired valves is calculated through the theoretical models. A sliding mode controller is applied with the proposed method, and the system stability is proven. The real-time control setup including three software layers is proposed to implement the algorithm. Several experiments are performed on a real-time embedded controller. Average 0.83% overshoot and 0.18 mm steady-state error are observed in the step response experiment. The highest frequency of sine wave that can be tracked is 1 Hz, and the average error is 1.68 mm. The maximum steady-state error is about 0.5 mm in the step response under payloads of 5.25 kg. All the simulation and experimental results prove the effectiveness of the control method.https://www.mdpi.com/2076-0825/10/10/260automated production linepneumatic positioning systemon–off valvesliding mode controlreal-time realization |
| spellingShingle | Zhonglin Lin Qi Xie Qiang Qian Tianhong Zhang Jiaming Zhang Jiaquan Zhuang Weixiong Wang A Real-Time Realization Method for the Pneumatic Positioning System of the Industrial Automated Production Line Using Low-Cost On–Off Valves Actuators automated production line pneumatic positioning system on–off valve sliding mode control real-time realization |
| title | A Real-Time Realization Method for the Pneumatic Positioning System of the Industrial Automated Production Line Using Low-Cost On–Off Valves |
| title_full | A Real-Time Realization Method for the Pneumatic Positioning System of the Industrial Automated Production Line Using Low-Cost On–Off Valves |
| title_fullStr | A Real-Time Realization Method for the Pneumatic Positioning System of the Industrial Automated Production Line Using Low-Cost On–Off Valves |
| title_full_unstemmed | A Real-Time Realization Method for the Pneumatic Positioning System of the Industrial Automated Production Line Using Low-Cost On–Off Valves |
| title_short | A Real-Time Realization Method for the Pneumatic Positioning System of the Industrial Automated Production Line Using Low-Cost On–Off Valves |
| title_sort | real time realization method for the pneumatic positioning system of the industrial automated production line using low cost on off valves |
| topic | automated production line pneumatic positioning system on–off valve sliding mode control real-time realization |
| url | https://www.mdpi.com/2076-0825/10/10/260 |
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