Obtain elevator operation and alarm data by collecting the signal terminals of the car top box or the control cabinet of the machine room in real time. Provide small program configuration software, one-click to realize terminal initialization self-learning configuration. Provide small program management software to view elevator operating status, fault information and historical statistics in real time. Collect the SOS alarm signal by collecting the five-party intercom system. The built-in 4G network communication module transmits the collected elevator data to the server in real time. It comes with a 220V AC to 12V DC power supply. Built-in lithium battery UPS function, support 1-2 hours backup power function. The camera can be expanded externally to realize video surveillance.