CN105243801A

CN105243801A - Alarm device capable of preventing driver fatigue driving

Info

Publication number: CN105243801A
Application number: CN201510705262.2A
Authority: CN
Inventors: 刘东海
Original assignee: Guangxi Vocational and Technical College
Current assignee: Guangxi Vocational and Technical College
Priority date: 2015-10-27
Filing date: 2015-10-27
Publication date: 2016-01-13

Abstract

The invention provides an alarm device capable of preventing driver fatigue driving, comprising a human body induction module circuit, a voltage comparator circuit, a timing circuit and an alarm circuit; the human body induction module circuit adopts a human body infrared induction module HC-SR501; the voltage comparator circuit adopts an LM358 chip to construct; the timing circuit is constructed by a 4060 circuit; and the alarm circuit is constructed by an alarm device and a silicon controlled. The alarm device disclosed by the invention detects the human body infrared heat radiation through the human body induction module circuit. When the alarm device detects a driver entering the driving position, the alarm device controls the voltage comparator circuit to output the low electric level and the timing circuit begins timing. After two hours, the timing circuit outputs high electric level, the silicon controlled is triggered to be conducted, and the alarm circuit works to make sound to prompt the driver to have rest so as to prevent the potential risk caused by the fatigue driving of the driver.

Description

A kind of warning device preventing tired driver to drive

Technical field

The present invention relates to a kind of warning device preventing the continuous long-time fatigue driving of driver, belong to application electric technology field.

Background technology

Along with socioeconomic development, automobile has become the preferred traffic instrument of people's trip, particularly during various festivals or holidays, self-driving travel has started the tourism and the trip mode that become main flow, although self-driving is gone on a tour can bring a lot of enjoyment and facility to journey, but, also often have driver to cause the generation of traffic hazard due to continuous long-time fatigue driving.Therefore, be necessary to design a kind of warning device preventing the continuous long-duration driving of driver, when driver drives after more than two hours continuously, warning device is sounded automatically, prompting driver time-out drives, need to look for service area to stop nearby to have a rest, such device can play the effect reminding driver safety driving, can reduce the probability of happening of traffic hazard to a certain extent.

Summary of the invention

The object of this invention is to provide a kind of warning device preventing the fatigue driving of head driver time, when driver drives after more than two hours continuously, warning device can be sounded automatically, and prompting driver has a rest, thus plays the effect reminding driver safety driving.

The concrete technical scheme that the present invention takes is as follows:

A kind of warning device preventing tired driver to drive, it is characterized in that: this device comprises human body induction module circuit, voltage comparator circuit, timing circuit and warning circuit, wherein human body induction module circuit adopts human body infrared induction module HC-SR501, voltage comparator circuit adopts LM358 chip to build, timing circuit adopts 4060 chips to build, and warning circuit adopts alarm and controllable silicon to build.

1 pin of human body infrared induction module HC-SR501 connects+5V power supply, and 2 pin connect the 2 pin negative input ends of LM358 chip U1,3 pin ground connection; The 3 pin positive input terminals of the adjustment termination LM358 chip U1 of adjustable resistance RV1, the two stiff end one termination+5V power supplys of adjustable resistance RV1, other end ground connection; 8 pin of LM358 chip U1 connect+5V power supply, 4 pin ground connection, and 1 pin exports 12 pin of termination 4060 chip U2; 9 pin of 4060 chip U2 connect the positive pole of electric capacity C1, one end of 10 pin connecting resistance R2,11 pin connect adjustable side and a stiff end of adjustable resistance RV2, one end of connecting resistance R1 after the negative pole of electric capacity C1 and the other end parallel connection of resistance R2, another stiff end of another termination adjustable resistance RV2 of resistance R1, accesses the control end of the controllable silicon U3 of warning circuit after the 3 pin output terminal series resistor R3 of 4060 chip U2; The plus earth of controllable silicon U3, one end of anode device LS1 taking alarm, one end of another termination switch S 1 of alarm LS1, another termination+5V power supply of switch S 1.

Beneficial effect of the present invention is: the warning device that this prevention tired driver is driven is detected infrared human body heat releasing by human body induction module circuit, when detecting that driver enters operator seat, control voltage comparator circuit output low level, timing circuit starts timing, arrives after 2 hours, and timing circuit exports high level, trigger controlled silicon conducting, warning circuit works, and the prompting driver that sounds has a rest, thus avoids fatigue driving may bring potential danger.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of the warning device that this prevention tired driver is driven.

Embodiment

Below in conjunction with accompanying drawing, the present invention will be further described.

As shown in Figure 1, the warning device that this prevention tired driver is driven comprises human body induction module circuit, voltage comparator circuit, timing circuit and warning circuit, wherein human body induction module circuit adopts human body infrared induction module HC-SR501, voltage comparator circuit adopts LM358 chip to build, timing circuit adopts 4060 chips to build, and warning circuit adopts alarm LS1 and controllable silicon to build.

When using this warning device, close a switch after S1, when driver is not at operator seat, the 2 pin output low levels of human body infrared induction module HC-SR501,1 pin of voltage comparator LM358 chip U1 exports high level and is loaded on 12 pin of 4060 chip U2,3 pin of 4060 chip U2 maintain output low level, controllable silicon U3 not conducting, alarm LS1 not sounding.After driver enters operator seat, when human body infrared induction module HC-SR501 has detected people, its 2 pin exports high level, the 1 pin upset of voltage comparator LM358 chip U1 is low level and is loaded on 12 pin of 4060 chip U2, 4060 chip U2 start timework, regulate adjustable resistance RV2 control to the floating charge duration of electric capacity C1 at two hours, after timing arrives two hours, 3 pin of 4060 chip U2 export high level, trigger controllable silicon U3 conducting, alarm LS1 sounds the alarm, prompting driver drives 2 hours continuously, need to have a rest, potential danger may be brought to avoid fatigue driving.

Claims

1. the warning device preventing tired driver to drive, it is characterized in that: this device comprises human body induction module circuit, voltage comparator circuit, timing circuit and warning circuit, wherein human body induction module circuit adopts human body infrared induction module HC-SR501, voltage comparator circuit adopts LM358 chip to build, timing circuit adopts 4060 chips to build, and warning circuit adopts alarm and controllable silicon to build;