Reversal detecting device for vehicle, has master detector utilizing time sharing principle and transmission inviting method for controlling synchronization of each slave detector to receive detection result

摘要

The device has a master detector having an obstacle detection function, where the detector is connected with slave detectors. The master detector utilizes time sharing principle and a transmission inviting method to control the synchronization of each slave detector in order to receive a detection result. Each slave detector sends detection data to the master detector only when the slave detector receives a transmission inviting instruction from the master detector.