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Active automobile driver fatigue driving alarming device and method

A technology of fatigue driving and early warning devices, applied in alarms, instruments, etc., can solve the problems of false alarms and missed alarms, work reliability, inaccuracy, etc., and achieve weakening drowsiness thoughts, less false alarm rates, reliability and accuracy high effect

Inactive Publication Date: 2009-05-20
吴玉沈
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is: in the prior art, judging the fatigue state of the driver according to the rotation of the steering wheel does not have an exact and reasonable alarm range, resulting in false alarms and missed alarms. The shortcoming of time alarm, the present invention can discover driver's fatigue symptom earlier, prevent the traffic accident caused thereby in time

Method used

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  • Active automobile driver fatigue driving alarming device and method
  • Active automobile driver fatigue driving alarming device and method
  • Active automobile driver fatigue driving alarming device and method

Examples

Experimental program
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Embodiment 1

[0060] Embodiment one, see Figure 10 , the figure shows the active driver fatigue driving warning device of the present invention, which includes: a first signal acquisition device 10 for collecting the rotation state of the steering wheel, a second signal acquisition device 20, a certain distance pulse preset device 30, a logical operation circuit 40, an output alarm device 50, a time base circuit 60, reset device 70 and speed limit pulse preset device 80, wherein: fixed distance pulse preset device 30, logical operation circuit 40, time base circuit 60 , reset device 70 and speed limit pulse preset device 80 constitute an alarm control device 90 .

[0061] The first signal acquisition device 10 is set at an interval within the scope of the allowable amount of freedom of the automobile steering system as the monitoring area for fatigue early warning. In this embodiment, the diameter of the steering wheel is 38 centimeters, and its allowable amount of freedom is 10 degrees. T...

Embodiment 2

[0071] Embodiment 2, the only difference between the early warning device of this embodiment and the previous embodiment is: the first signal acquisition device 10 (see Figure 4 ) consists of an infrared emitting and receiving element 11 and an infrared reflecting element 12 with adjustable width. The infrared transmitting and receiving element 11 and the infrared reflecting element 12 are respectively installed at proper positions of the steering gear 100 and the steering column cover 200 connected with the steering gear. Wherein the outer edge of the infrared reflective element 12 is adjusted in the interval of 1 / 2 of the allowable free gap A of the diverter as the early warning monitoring interval B, and the center of the infrared reflective element 12 is positioned at the center 0 of the allowable free gap A; the infrared emitting and receiving element The detection direction of 11 is in the center 0 position of the steering gear free gap when the car is running straight....

Embodiment 3

[0072] Embodiment three, see Figure 11 , is a schematic diagram of an early warning device of the present invention; the difference from the previous embodiment is that the first signal acquisition device 10 is composed of a magnetic element and a magnetic sensor. see Figure 5 , the first signal acquisition device 10 is composed of a Hall sensor 13 and two magnetic elements 14, the Hall sensor 13 and the magnetic elements 14 are respectively installed on the appropriate position of the steering gear and the steering column cover connected to the steering gear (see Figure 14 ). The two magnetic elements 14 are adjusted to a suitable position that is basically symmetrical about the center 0 of the steering gear free gap A when the car is running straight, so as to determine the early warning monitoring area B, and the Hall sensor 13 is at the center 0 of the corresponding free gap. When the automobile runs straight, the Hall sensor 13 has no magnetic response, which is a s...

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Abstract

A pre-alarm device of automobile driver fatigue-driving in active mode consists of the first signal collection unit for collecting steering wheel state, the second signal collection unit for collecting pulse signal of speed mileage, an alarm control unit for presetting alarm time reference and for receiving signals collected by two said signal collection units as well as for outputting alarm signal according to received signals, and an output alarm unit for making alarm according to alarm signal of alarm control unit.

Description

technical field [0001] The invention relates to a safety alarm device, in particular to an alarm device for automobile driving safety, that is, an early warning device for fatigue driving of automobile drivers. Background technique [0002] At present, with the development of my country's economic construction, the economic growth of all walks of life and the continuous improvement of people's living standards, more and more units and individuals purchase and use road vehicles, and road traffic accidents are also increasing year by year. According to the report provided by the national traffic safety department, 100,000 people died in road traffic accidents in my country in 2005, more than half of which were caused by overloaded, speeding and fatigue driving, which caused great losses to my country's national economy and people's life and property safety. Early detection, reminding and stopping driver's fatigue driving, avoiding the generation of traffic accident caused ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/06
Inventor 吴玉沈
Owner 吴玉沈
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