Vehicle driving recording device
A technology of driving record and driving recorder, which is applied in the direction of circuit device, registration/indication of vehicle operation, registration/indication, etc., and can solve problems such as exhaustion of battery power and unusability of vehicle driving recorder
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[0012] Such as figure 1 Shown, a kind of vehicle driving recording device, comprises vehicle driving recorder and the power supply mechanism that provides power for vehicle driving recorder, power supply mechanism comprises power management module, host power supply and standby power supply, host power supply and standby power supply are connected with power management module respectively Connection, the power management module is a low-power management MCU, the backup power is a large-capacity non-rechargeable dry battery, the typical chip used by the low-power management MCU: STM8L151 series chips / MSP430 series chips, and the host power supply is 24V vehicle power supply. Among them, large capacity means that the power is greater than 700mAh, and low power consumption means that the current is less than 5mA.
[0013] The power control management methods are:
[0014] A. When the external power supply of the vehicle driving recorder is disconnected, that is, the 24V vehicle ...
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