Device and method for remotely upgrading microcontroller of robot system

The invention discloses a device and a method for remotely upgrading microcontrollers of a robot system. The device comprises a main control chip end, a communication link and a plurality of microcontrollers, the main control chip end comprises a segmentation module, a first control module and a sending module; the segmentation module splits the executable file into a plurality of program segment files; the sending module is used for sequentially sending the plurality of program segment files to the microcontroller needing to be upgraded through the communication link according to the instruction of the first control module; the microcontroller comprises a receiving module, a second control module and a programming module; after the receiving module receives one program segment file in sequence, the second control module controls the programming module to store the current program segment file into a memory of the microcontroller, and the current program segment file is programmed into a Flash of the microcon