Device for separately detecting faults of entire-vehicle type weighing sensors

The invention relates to a device for separately detecting faults of entire-vehicle type weighing sensors, comprising: weighing sensors, multi-channel communication selective switches, simulated sampling circuits and a controller. The output ends of the weighing sensors are connected with the input ends of the multi-channel communication selective switches; and the output ends of the multi-channel communication selective switches are connected with the input end of a high precision AD chip. The signal output end of the high precision AD chip is connected with the signal input end of the controller. According to the device of the invention, it is possible to monitor and analyze the states of the weighing sensors in multiple channels in real time and to instantly determine the faults of the sensors so as to avoid the weight calculation errors caused by the faults of the sensors. In addition, through the communication between the controller and the instrument panel, the instrument panel is able to display the st