Fatigue driving early-warning device and startup module

Abstract

The invention discloses a fatigue driving early-warning device, which comprises an image acquisition module for acquiring images of eyes of a driver, an image processing module for processing the images, a power supply conversion module for providing corresponding voltage for the device, a power switch and a startup module, wherein the power switch is connected between a power supply and the ground. The device is characterized in that the startup module comprises a comparer circuit and a bistable flip-flop; an input end of the comparer circuit is connected with one end of the power switch, and an output end is coupled with an input end of the bistable flip-flop; an output end of the bistable flip-flop is coupled to the power supply conversion module; the comparer circuit acquires the electrical level generated by switching actions of the power switch, compares the electrical level with reference voltage, and generates pulses to trigger state turnover of the bistable flip-flop so as tocontrol the power supply conversion module to start work or stop work. The fatigue driving early-warning device has low cost, low power consumption and more stable performance.

Description

technical field [0001] The invention belongs to the technical field of driving safety, and in particular relates to a fatigue driving warning device and a starting module. Background technique [0002] Fatigue driving is one of the important hidden dangers of today's traffic safety. When the driver is in a state of fatigue, the ability to perceive the surrounding environment, the ability to judge the situation, and the ability to control the vehicle are all reduced to varying degrees, and traffic accidents are prone to occur. Therefore, the research and development of high-performance real-time detection and early warning technology of driver fatigue status can effectively reduce the hidden dangers caused by fatigue driving, so as to achieve the purpose of ensuring the personal safety of drivers and the safety of related personnel around them. [0003] The driver fatigue driving warning device refers to the sampling of information such as the driver's physiological signal, ...

AI Technical Summary

Problems solved by technology

Existing push-button start-up module 14 adopts the mode of counting the key-pressing time of the button switch with the microprocessor MCU to control the work of the power conversion chip, so the MCU must be powered all the time, which consumes a lot of power and costs relatively high.

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