Vehicle machine monitoring system based on MHL technology

The utility model relates to a vehicle machine monitoring system based on MHL technology and belongs to the technical field of mobile phone and vehicle machine interconnection. The vehicle machine monitoring system comprises an HMI human-computer interaction module for sending a request command to a vehicle-mounted terminal or initiatively receiving push information; and a bluetooth communication module serving as an information exchange medium for a mobile phone and a vehicle machine, so that the mobile phone and the vehicle machine can perform information exchange through the bluetooth communication module. The vehicle machine comprises an ECU module which receives data or the command of the mobile phone, responds to the command and executes the command of the mobile phone or sends the command to the mobile phone to achieve mobile phone and vehicle machine interconnection; a wireless application transceiver module which serves as an information exchange medium for the vehicle machine, so that the vehicle machine is connected with the mobile phone through the wireless application transceiver module; and a CAN-USB signal transceiver module which serves as a vehicle machine communication center to complete transfer of data parameters of vehicle-mounted electrical appliances. The vehicle machine monitoring system specifies effective wireless connection of a smart phone and a vehicle-mounted system and provides good user experience; and when mobile phone and vehicle machine interconnection is performed in the standard, bidirectional control of the mobile phone on which specific application software is installed and the vehicle machine can be achieved.