Parking loop air pressure monitoring system

The utility model provides an air pressure monitoring system for a parking loop, and relates to the technical field of automobile active safety. The air inlet end of a four-loop protection valve in the system is connected to a whole automobile air source; the air outlet end of the four-loop protection valve is connected with the input end of the parking air cylinder; the output end of the parking air cylinder is connected with the hand brake valve through the pressure reducing valve; the low-pressure pipeline is provided with a low-pressure control switch for controlling the on-off of the low-pressure pipeline; the high-pressure pipeline is provided with a high-pressure control switch for controlling the on-off of the high-pressure pipeline; when the pressure of the low-pressure pipeline is lower than a preset low-pressure threshold value, the low-air-pressure control switch is controlled to act, and an alarm prompt is given; when the pressure of the high-pressure pipeline is higher than the preset high-press