Method and system for remotely installing and updating excavator engine program

The invention provides an excavator engine program remote installation method and system, the method is based on a system, the system comprises a vehicle-mounted terminal, and a cloud platform, a man-machine interaction terminal and an engine ECM which are connected with the vehicle-mounted terminal; the method comprises the steps that a cloud platform calibration program management module manages a calibration program, and when a new calibration program is newly added, an equipment number needing to be updated is determined according to a calibrated attribute, and a list of equipment to be updated and calibrated is generated. When the cloud platform detects that equipment in the to-be-updated and calibrated equipment list is powered on and the vehicle-mounted terminal is online, a to-be-updated calibration program file is transmitted to the vehicle-mounted terminal through a wireless network, and the vehicle-mounted terminal receives the to-be-updated calibration program file and then transmits the to-be-upd