Monitoring and early warning method for virtual connection and falling of feeder line of direct-current distribution screen

The invention discloses a method for monitoring and early warning virtual connection and falling of a feeder line of a direct-current distribution screen, and effectively solves the problem that a shutdown accident of load communication equipment is affected due to the fact that the state of the feeder line of the direct-current distribution screen is not detected in the prior art. The early warning method is implemented by using an early warning system, and the early warning system comprises a distribution screen feeder monitoring device and an upper computer state display device. The distribution screen feeder monitoring device comprises a motor vibration unit, a temperature measurement unit, an attitude measurement unit, a power supply unit, a processor unit, a wireless communication unit, a voltage measurement unit and a current measurement unit. According to the early warning method, whether a feeder connector is in a normal state or not, namely whether feeder connection is in a normal state or not is ju