3.4 Control system
The control system is equivalent to the human ”brain”, which is the main factor determining the function and performance of the robot. How to realize the stable, safe and efficient operation of the construction robot is the key to the control system, and the intelligent, modular and integrated construction robot control system is the main development trend. For example, the structure, mechanical inertia and accuracy of the mobile robot change to different degrees during modular reorganization. For this reason, Kai Xu et al. (2017) adopted the method combining PID and IFT, which can avoid the defects of PID control method and effectively improve the performance of the control system in the process of iterative updating. Neha Kapoor et al. (2017) combined adaptive neural fuzzy reasoning system and intelligent technology on the synovium controller of the original manipulator to realize the intellectualization of the synovium controller of the manipulator. Compared with the original controller, chatter-elimination, anti-interference and other performance effects are better. Sung et al. (2013) based on the VRCS-type robot control system, added intelligent technology, language recognition control system, generalized sidelobe canceller technology, navigation and positioning system, etc., and combined with corresponding algorithms, realized an intelligent VRCS-type robot with autonomous speech recognition, navigation and positioning.