Title: A data encryption technology for serial communication of multi degree of freedom manipulator based on chaotic sequence

Authors: Yan-Qin Zhang; Xiao-Xing Shi; Yunqing Qu

Addresses: Department of Electrical and Electronic Engineering, Shijiazhuang University of Applied Technology, Shijiazhuang, 050081, China ' Department of Electrical and Electronic Engineering, Shijiazhuang University of Applied Technology, Shijiazhuang, 050081, China ' Department of Electrical and Electronic Engineering, Shijiazhuang University of Applied Technology, Shijiazhuang, 050081, China

Abstract: In order to effectively improve the security of serial communication data encryption of manipulator and shorten the encryption time, a multi degree of freedom serial communication data encryption technology of manipulator based on chaotic sequence is proposed. The serial communication data of the manipulator is obtained by using the logistic chaotic map, and the chaotic sequence of the communication data is generated. Based on the binary sequence generated by the logistic chaotic map, the serial communication data encryption key of each wheel is generated. The serial communication data obtained is forward XOR or reverse XOR with the sub key to realise the serial communication data encryption of the mechanical arm. The experimental results show that the maximum value of the cross-correlation function of the proposed method is closer to 0, and the data encryption time is only 15.2 s, which effectively improves the security of data encryption.

Keywords: chaotic sequence; logistic chaotic map; multi-degree-of-freedom manipulator; serial communication data; data encryption.

DOI: 10.1504/IJIMS.2023.129287

International Journal of Internet Manufacturing and Services, 2023 Vol.9 No.1, pp.32 - 43

Received: 26 Apr 2022
Accepted: 20 Jul 2022
Published online: 03 Mar 2023 *