CN201867935U - Anti-sleeping device for vehicle - Google Patents

Abstract

The utility model relates to an anti-drowsiness device for vehicles, which belongs to the field of systems for ensuring safe running of vehicles. It is characterized in that when the infrared receiver receives the infrared rays emitted by the infrared emitter, the relay gating module cannot make the relay pass through, the relay cannot close the switch controlled by it, and the electric horn sound module does not work; when the infrared receiver receives the infrared emission When the infrared rays emitted by the device are emitted, the relay gating module makes the relay open, the relay pulls in the switch controlled by it, and the electric horn generating module works to make a sound.

Description

An anti-drowsy device for a vehicle

technical field

The utility model relates to the field of systems for ensuring the safe running of automobiles, in particular to an anti-drowsiness device for automobiles.

Background technique

Nowadays, traffic accidents caused by drivers dozing off during driving are not uncommon. When there are other people in the car, it is found that the driver is dozing off and the driver can be reminded, but if there is only the driver in the car or other people in the car are not found. When the driver falls asleep, it may cause a traffic accident.

Some of today's car anti-drowsiness devices detect whether the driver is in a drowsy state based on the change of the driver's grip on the steering wheel, but the change in the driver's grip on the steering wheel is not necessarily caused by the driver's drowsiness, and it is difficult to guarantee the driver's drowsiness while driving. The grip force maintains a fixed value, which leads to inaccurate work of the device; some anti-drowsiness devices in the car will constantly ask questions during the driving process, and judge according to whether the speed of answering questions is abnormal or the text is incorrect. Whether the driver is in a state of drowsiness, so that the constant questions will make the driver tired and even distracted. Above-mentioned problem remains to be solved, and this just needs a kind of new anti-drowsiness device for vehicle, reminds the driver.

Contents of the invention

The purpose of the utility model is to solve the above problems, and provide a device for reminding the driver when the driver dozes off during driving to ensure that the car can run safely. It is achieved through the following technical solutions:

The utility model is an anti-drowsiness device for a vehicle, comprising a battery, an electric horn sounding device, a relay, an infrared receiver, an infrared emitter, a manual switch, a relay gating module, a relay control switch, and a resistor 1. The infrared emitter is used for The infrared signal is emitted, and the infrared receiver is used to receive the infrared signal emitted by the infrared transmitter. When the infrared signal is received, the internal resistance of the infrared receiving tube decreases. At this time, the triode base is extremely low. The relay gating module cannot use The relay pulls in the switch controlled by the relay; when the infrared signal is not received, the internal resistance of the infrared receiving tube is relatively large, and the relay gating module makes the relay excited and pulls in the switch controlled by the relay.

Described infrared transmitter is installed on the roof of the car, and infrared receiver is installed in front of the driver's seat. When the driver's mental state is relatively good, the driver's head cannot block the infrared signal emitted by the infrared transmitter, and the infrared receiver can receive Infrared signal; when the driver is dozing off, the driver's head leans forward, thereby blocking the infrared signal emitted by the infrared transmitter, and the infrared receiver cannot receive the infrared signal sent by the infrared transmitter at this time. The relay gating module is composed of 10 resistors 2 and 11 triodes.

The electric horn sounding device is that when the driver is in a drowsy state, the switch controlled by the relay is closed to make a sound to remind the driver to concentrate on driving. The storage battery provides power for the anti-drowsiness device for the vehicle. The manual switch is for when the driver's mental state is relatively good, the driver can turn off the device to save power consumption.

Advantage of the utility model:

1. The distance between the infrared transmitter and the infrared receiver can be adjusted to suit different models.

2. The infrared receiver used can distinguish whether it is the infrared signal emitted by the infrared transmitter or the infrared signal emitted by the human body or other objects with temperature in the car, which makes the device more accurate.

3. The device has a simple structure and takes up little space when installed in the vehicle.

Description of drawings

Fig. 1 is a schematic diagram of the circuit structure of a vehicle anti-drowsiness device of the present invention.

Detailed ways

1-battery; 2-electric horn sounding device; 3-relay; 4-infrared receiver; 5-infrared transmitter; 6-manual switch; 7-relay gating module; 8-relay control switch; 9-resistance 1; 10-resistor 2; 11-transistor.

Below in conjunction with embodiment accompanying drawing, the utility model is described further.

As shown in Fig. 1, a kind of vehicle anti-drowsiness device of the present utility model comprises battery 1, electric horn sounding device 2, relay 3, infrared receiver 4, infrared emitter 5, manual switch 6, relay gating module 7, Relay control switch 8 etc.; When infrared receiver 4 receives the infrared signal that infrared emitter 5 emits, the internal resistance of infrared receiving tube in 4 reduces, and now triode base is very low level relay gating module 7 and can not make relay 3 The switch 8 electric horn sounding device 2 controlled by the pull-in relay does not work; when the infrared signal is not received, the internal resistance of the infrared receiving tube is relatively large, and at this time the base of the triode is extremely high, and the relay gating module 7 makes the relay 3 The switch 8 controlled by the excitation pull-in relay and the circuit path where the electric horn generating device 2 is located, thereby the electric horn sends a sound to remind the driver. When the driver's state of mind is better, the manual switch 6 can be disconnected to save power.

Claims (1)

1. A device for preventing drowsiness for a vehicle, comprising a storage battery, an electric horn sounding device, a relay, an infrared receiver, an infrared emitter, a manual switch, a relay gating module, and a relay control switch, characterized in that: the infrared receiver and The relay gating module is connected; the relay gating module controls whether the circuit where the relay is located is connected; the relay gating module is composed of a resistor and a triode; the relay control switch is connected with the electric horn sounding device.

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