Fault Restoration of Six-Axis Force/Torque Sensor Based on Optimized Back Propagation Networks

doi:10.3390/s22176691

	Fault Restoration of Six-Axis Force/Torque Sensor Based on Optimized Back Propagation Networks
	Li, Xuhao 1,2,3; Gao, Lifu 3,4; Li, Xiaohui 5; Cao, Huibin 3,4; Sun, Yuxiang 3
刊名	SENSORS
	2022-09-01
卷号	22
关键词	force/torque sensor back propagation neural network fault restoration coupling particle swarm optimization
DOI	10.3390/s22176691
通讯作者	Cao, Huibin(hbcao@iim.ac.cn) ; Sun, Yuxiang(yxsun@iim.ac.cn)
英文摘要	Six-axis force/torque sensors are widely installed in manipulators to help researchers achieve closed-loop control. When manipulators work in comic space and deep sea, the adverse ambient environment will cause various degrees of damage to F/T sensors. If the disability of one or two dimensions is restored by self-restoration methods, the robustness and practicality of F/T sensors can be considerably enhanced. The coupling effect is an important characteristic of multi-axis F/T sensors, which implies that all dimensions of F/T sensors will influence each other. We can use this phenomenon to speculate the broken dimension by other regular dimensions. Back propagation neural network (BPNN) is a classical feedforward neural network, which consists of several layers and adopts the back-propagation algorithm to train networks. Hyperparameters of BPNN cannot be updated by training, but they impact the network performance directly. Hence, the particle swarm optimization (PSO) algorithm is adopted to tune the hyperparameters of BPNN. In this work, each dimension of a six-axis F/T sensor is regarded as an element in the input vector, and the relationships among six dimensions can be obtained using optimized BPNN. The average MSE of restoring one dimension and two dimensions over the testing data is 1.1693 x 10(-5) and 3.4205 x 10(-5), respectively. Furthermore, the average quote error of one restored dimension and two restored dimensions are 8.800 x 10(-3) and 8.200 x 10(-3), respectively. The analysis of experimental results illustrates that the proposed fault restoration method based on PSO-BPNN is viable and practical. The F/T sensor restored using the proposed method can reach the original measurement precision.
资助项目	National Natural Science Foundation of China[92067205] ; Major Science and Technology Project of Anhui Province[202103a05020022] ; Key Research and Development Project of Anhui Province[2022a05020035] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22040303]
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
语种	英语
出版者	MDPI
WOS记录号	WOS:000851660100001
资助机构	National Natural Science Foundation of China ; Major Science and Technology Project of Anhui Province ; Key Research and Development Project of Anhui Province ; Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128838]
专题	中国科学院合肥物质科学研究院
通讯作者	Cao, Huibin; Sun, Yuxiang
作者单位	1.Anhui Univ, Inst Phys Sci, Hefei 230031, Peoples R China 2.Anhui Univ, Inst Informat Technol, Hefei 230031, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 4.Univ Sci & Technol China, Dept Sci Isl, Hefei 230026, Peoples R China 5.Beijing Inst Control Engn, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Li, Xuhao,Gao, Lifu,Li, Xiaohui,et al. Fault Restoration of Six-Axis Force/Torque Sensor Based on Optimized Back Propagation Networks[J]. SENSORS,2022,22.
APA	Li, Xuhao,Gao, Lifu,Li, Xiaohui,Cao, Huibin,&Sun, Yuxiang.(2022).Fault Restoration of Six-Axis Force/Torque Sensor Based on Optimized Back Propagation Networks.SENSORS,22.
MLA	Li, Xuhao,et al."Fault Restoration of Six-Axis Force/Torque Sensor Based on Optimized Back Propagation Networks".SENSORS 22(2022).