Upper computer system for data acquisition and event recording of generator set

The utility model provides an upper computer system for data acquisition and event recording of a generator set, which comprises a controller connected with an upper computer through a main network cable and an auxiliary network cable, and the controller is sequentially connected with a switch and a serial port Ethernet converter. The controller and Ethernet ports of the serial port Ethernet converters form a closed local area network through the switch, the number of the serial port Ethernet converters is at least two, and the signal input end of one serial port Ethernet converter is connected with the detector through an RS485 communication line. The signal input end of the other serial port Ethernet converter is connected with the IGNT module through an RS485 communication line, the detector is connected with a generator winding bearing signal acquisition unit through an RS485 communication line, the detector is further connected with a touch screen, and an air switch, a power supply module and a terminal