Monitoring and alarm device for fatigue driving of automobile

Abstract

A monitoring and alarm device for fatigue driving of an automobile is used for monitoring and prompting the fatigue state of a driver and overcomes the defects of misinformation and concealed information of the existing monitoring devices caused by changes of surroundings, operating states and driver's positions. The monitoring and alarm device is composed of an electrocardiosignal acquisition electrode, an electrocardiosignal processor, an alarm, a work power supply and connecting wires among the parts, wherein the electrocardiosignal acquisition electrode is in a wire mesh structure and divided into two sections which are bilaterally and symmetrically attached to the surface of a steering wheel sleeve, and two sections of electrodes are mutually insulated. The electrocardiosignal processor comprises a filter, an amplifier, an analog digital converter (ADC) conventional electric signal sorting circuit and a single chip microcomputer (SCM) which is used for calculating and analyzing heart rates and heart rate variability (HRV) index signals. The alarm uses a sound and light alarm module. The monitoring and alarm device has the advantages that physical states of drivers are reflected accurately; information extraction and processing and alarm processes are convenient, quick and not easy to interfere; and failed information and misinformation can be avoided.

Description

technical field [0001] The invention belongs to the monitoring technology, in particular to an automobile fatigue driving monitoring and alarming device controlled by physiological information. Background technique [0002] Fatigue and drowsiness during driving are one of the important causes of vicious traffic accidents, causing a large number of casualties every year, directly or indirectly causing huge economic losses, so driving fatigue and drowsiness detection technology has become a research hotspot in various countries. According to relevant surveys, in conventional car driving, fatigue driving is an important killer. In modern road accidents, about 20% are caused by fatigue driving, and fatigue driving accounts for about 40% of serious traffic accidents. These have resulted in a large number of human and property losses. In the United States, where the number of personal cars is high, according to the data of the National Highway Traffic Safety Committee, the econo...

AI Technical Summary

Problems solved by technology

This method is obviously affected by environmental factors. When the weather is humid or when the human body sweats, the human body impedance becomes smaller; when it is cold and dry, the human body impedance is very large; it is greatly affected by driving habits, steering wheel grip habits, and grip strength. , for wet and sweaty palms, etc., the use effect is not good, it has a great impact on the structure of the measurement, and misjudgment during monitoring occurs

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