Vehicle power supply and intelligent monitoring system and method

Abstract

The invention relates to an on-board power supply and intelligent monitoring system. The on-board power supply and intelligent monitoring system is characterized in that an on-board power supply management unit is disposed on a total power supply in a vehicle, and is used to realize current acquisition of various electrical appliances, and at the same time is used for automatic alarming and automatic emergency processing according to maximum and minimum current threshold values of various circuits; on-board electronic devices are connected with the on-board power supply management unit, and are disposed in the vehicle, and are electrified by the power supply terminals of various on-board electronic devices, and in addition, the power supply current can be acquired and monitored by the on-board power supply management unit; a monitoring management platform is communicated with the network by the on-board power supply management unit, and is used for the real-time recording, and the monitoring of various on-board electronic devices. The on-board power supply system intelligent monitoring system is advantageous in that the real-time monitoring of the safe power supply of the electronic devices in the vehicle can be realized, and the power off control can be carried out, when the current is abnormal.

Description

technical field [0001] The invention relates to the field of vehicle control, in particular to a vehicle power supply and intelligent monitoring system and method. Background technique [0002] There are many types of on-board electronic equipment on existing public transport vehicles. In addition to pre-installed electronic equipment that guarantees the operation of the vehicle itself, such as vehicle power systems, control systems, and lighting systems, etc.; Equipment, mainly including GPS, IC card, in-vehicle display screen, voice station announcement machine, road sign, video surveillance and vehicle TV and other equipment. Restricted by the structure of the vehicle itself and the electrical characteristics of the electrical equipment, the power supply lines of each electronic equipment vary in thickness and length, and basically spread all over the vehicle. These electronic devices, especially for various after-installed application systems, are independently powered ...

AI Technical Summary

Problems solved by technology

These electronic devices, especially for various after-installed application systems, are independently powered from the main power supply inside the vehicle, and lack unified power supply monitoring and management.

[0003] On the other hand, the current on the vehicle power supply line is relatively large, and a simple fuse cannot achieve effective protection and alarm for intermittent short-circuit discharge or limited overcurrent

The ground short circuit caused by the aging of the power line and the damage of the line is often an intermittent short circuit caused by the vibration and jolt of the vehicle. In addition to the surface oxidation of the line, there is a contact resistance at the short circuit point, and the short circuit current may not cause the fuse to blow. , but accompanied by discharge and ignition, this situation will bring great safety hazards, specifically for power supply line failure and on-board equipment failure

[0004] In addition, there is also a lack of management in the current detection of the health status of the vehicle power supply system. When the on-board battery or generator fails or fails, the output voltage fluctuates frequently and the amplitude increases, and in severe cases, it will cause damage to the on-board equipment.

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