Signal lamp red-yellow-green light fault monitoring method and device

The invention provides a signal lamp red-yellow-green lamp fault monitoring method and device, wherein the signal lamp red-yellow-green lamp fault monitoring method comprises the specific steps: step 1, collecting the voltage and power values of each signal lamp when the signal lamp is turned on, and learning the collected data to obtain a learning template; and step 2, acquiring effective power value data for measuring the lighting period of each signal lamp in real time, comparing the effective power value data with the average value of the corresponding power value data in the learning template, and if the effective power value data of a certain signal lamp is smaller than a certain proportion of the average value, judging that the corresponding signal lamp fails. According to the invention, red, yellow and green light monitoring can be realized and the fault state can be accurately reported through small change of the intersection with the traffic signal lamps, and the method is reliable and economic. 本发明