SIGNAL TRANSMITTING METHOD OF MULTIPLE CONTROL SYSTEM

摘要

PURPOSE: A signal transmitting method of a multiple control system is provided to prevent the overlapping of signals on a communication line, thus improving the reliability of control and preventing the failure of a product. CONSTITUTION: The signal transmitting method of a multiple control system, having a center controller and at least one control object appliances, comprises steps of endowing the control object appliances with the order of priority; waiting for a desired time according to the order of priority corresponding to each control object appliance; determining whether an electric signal exists on a signal line or not; transmitting the signal to the center controller if the signal doesn't detected; and retrying the transmission of the signal after the lapse of the desired time if the signal is detected.