Hardware-in-loop (HIL) testing platform of velocity measuring system (VMS)

The invention discloses a hardware-in-loop (HIL) testing platform of a velocity measuring system (VMS). The HIL testing platform comprises an acquisition board, a fault board, a load board, multiple sensors and a dspace main controller; the acquisition board is in communication connection with the VMS, and is used for conditioning an input signal and an output signal of the VMS and monitoring waveforms; the fault board is used for providing a fault injection to the VMS and for testing a protecting function after the fault; the load board is used for providing a load to the VMS; the multiple sensors are in communiation connection with the load board and are used for acquiring signals which are required by multiple VMSs; the dspace main controller is in communication connection with the VMS as well as the fault board and the load board, and is at least used for controlling communication, signal acquisition, signal generation, board control, vehicle model operation and testing model operation. With the additional arrangement of the fault board as well as the structure designs which are independent in function, the testing platform is convenient to built, recombine, debug and maintain; and meanwhile, the structure of the system is very simple.