A method for controlling power supply of an Internet of Vehicles terminal

Abstract

The invention relates to a power control method for a terminal of the Internet of Vehicles. The built-in power management module of the terminal of the Internet of Vehicles is responsible for realizing the power-on, power-off, sleep, and wake-up functions of the vehicle-mounted functional modules, and provides reliable and low-energy voltage logic operation control for the entire system. Strategy, the control strategy is divided into three working states: full working mode; low power consumption mode; ultra-low power consumption mode; Mode, the state machine monitors the working status of the system in real time; after receiving the active sleep signal, it enters the pre- / transition state, and shuts down the relevant functional modules in turn according to the established order. When all the sleep conditions are met, the system enters the low-power sleep state , and start the timeout detection program; after the current working state meets the ultra-low power sleep condition, the system enters the ultra-low power sleep mode to meet the deep power saving requirements.

Description

technical field [0001] The invention relates to a power supply management control method of a vehicle networking terminal. Background technique [0002] At present, the Internet of Vehicles has gradually become a research hotspot, and it is applied in various fields and control strategies of vehicle electronics. Under normal circumstances, the power management control strategy for the Internet of Vehicles terminal (TBOX) is very rough, and it is often a weak link in the hardware system, with many problems such as unclear status, increased power consumption, and system abnormalities. The system is the "lifeline" of the entire hardware system. Once it has a problem, it will definitely cause the collapse of the entire hardware system. Therefore, it is necessary to improve the power control strategy as much as possible. However, there is no uniform standard for the power management strategy of the IoV terminal in the industry, and the practices of various equipment manufacturer...

AI Technical Summary

Problems solved by technology

Under normal circumstances, the power management control strategy for the Internet of Vehicles terminal (TBOX) is very rough, and it is often a weak link in the hardware system, with many problems such as unclear status, increased power consumption, and system abnormalities. The system is the "lifeline" of the entire hardware system. Once it has a problem, it will definitely cause the collapse of the entire hardware system. Therefore, it is necessary to improve the power control strategy as much as possible.

However, there is no uniform standard for the power management strategy of the IoV terminal in the industry, and the practices of various equipment manufacturers vary widely, and it is difficult to judge which is better. However, as an important part of the control unit of the vehicle system, the IoV terminal has the advantages of its power management strategy. Inferiority is not only the impact of its own safety, but even affects the safety and energy-saving indicators of the entire vehicle system, which can be said to affect the whole body.

[0003] The working environment of the Internet of Vehicles terminal is harsh, the working conditions are complicated, and the driving habits of users are unpredictable. If the instant service is blindly provided, it will inevitably lead to too long working hours, resulting in excessive quiescent current and increased power consumption; and excessive power consumption will cause Battery loss affects user experience, so IoV terminals must enter low-power or ultra-low power mode to save power

However, in the dormant state, users often want to be able to wake up quickly. At this time, the communication module of the Internet of Vehicles terminal is not working. It must wait for the communication module to take effect, which will lead to a very long wake-up time and poor user experience.

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