Vehicle monitoring system

A vehicle-mounted monitoring system, comprising

• at least one camera for monitoring;
• at least one tire pressure sensor for detecting tire pressure data;
• and a vehicle-mounted monitoring device detachably arranged on the vehicle,
• wherein the vehicle-mounted monitoring device is provided with a circuit board, a display screen, a first communication module and a second communication module, and the display screen, the first communication module and the second communication module are all electrically connected to the circuit board;
• the first communication module wirelessly communicates with the cameras and is configured to receive an image data wirelessly transmitted by each camera and then transmit the image data to the circuit board, and the second communication module wirelessly communicates with the tire pressure sensors and is configured to receive the tire pressure data wirelessly transmitted by each tire pressure sensor in real time and then transmit the tire pressure data to the circuit board;
• the circuit board is configured to transmit the image data and the tire pressure data to the display screen, and the display screen displays the image data and the tire pressure data simultaneously,
• wherein the display screen directly displays an abnormal tire pressure data when the tire pressure data is abnormal, and the display screen displays a tire pressure alarm indication when the tire pressure data is abnormal;
• the abnormality in the tire pressure data comprises:
• the tire pressure is higher than a first preset value, tire temperature is higher than a preset temperature, the tire pressure is lower than a second preset value, the tire pressure drops by a third preset value within a second preset time, the tire pressure drops by a fourth preset value within a third preset time, and the tire pressure sensor signal is lost, wherein the second preset time is less than the third preset time, the tire pressure dropping by the third preset value within the second preset time indicates a first deflation of the tire, and the tire pressure dropping by the fourth preset value within the third preset time indicates a second deflation of the tire, and the first deflation of the tire and the second deflation of the tire have different deflation speeds;
• wherein the second preset time is less than the third preset time, the tire pressure dropping by the third preset value within the second preset time indicates a first deflation of the tire;
• and
• wherein the circuit board drives the display screen to display a tire blowout image or a tire blowout indicator when the tire pressure changes from a normal pressure value to below the third preset value within a preset time period, and the tire blowout image is either the real-time image of the tire captured by the camera or a virtual dynamic image of the tire blowout.