CN203681395U - Driving safety early-warning device based on alcohol detection - Google Patents

Abstract

The utility model discloses a driving safety early warning device based on alcohol detection, which comprises a monitoring box (1), a support plate (3) and an alcohol concentration sensor (8); a rotating shaft (2) is arranged on the top of the support plate, and the monitoring box Two square bumps (11) with shaft holes (12) are arranged on the back side of the top of the body, and the two ends of the rotating shaft are respectively inserted into the two shaft holes; the alcohol concentration sensor is connected to the monitoring box body through wires The outer side of the support plate is a solar panel (31); the front panel of the monitoring box body is provided with a display screen (6), a power button (5) and three indicator lights (7); the front panel of the monitoring box body There are sound-diffusing holes (4) on both sides; the monitoring box is equipped with a logic control circuit, a timer, a lithium battery, an operational amplifier, a charging control circuit, a light-producing alarm and a display drive circuit; the light-producing alarm includes a buzzer , the generator and the above-mentioned indicator light; the structure design of the driving safety early warning device based on alcohol detection is simple and compact, and the safety is high.

Description

A driving safety early warning device based on alcohol detection

technical field

The utility model relates to a driving safety early warning device based on alcohol detection. the

Background technique

With the development of society and economy, automobiles have been greatly popularized, but the accident rate has also increased sharply. In all accidents, a large proportion is caused by drunk driving. Therefore, it is necessary to design a brand-new driving safety warning device based on alcohol detection. the

Utility model content

The technical problem to be solved by the utility model is to provide a driving safety warning device based on alcohol detection. The structure design of the driving safety warning device based on alcohol detection is simple and compact, and the safety is high. the

The technical solution of the utility model is as follows:

A driving safety early warning device based on alcohol detection, comprising a monitoring box body (1), a support plate (3) and an alcohol concentration sensor (8); a rotating shaft (2) is arranged on the top of the support plate, and There are 2 square protrusions (11) with shaft holes (12), and the two ends of the rotating shaft are respectively inserted into the 2 shaft holes; the alcohol concentration sensor is connected to the monitoring box body through wires; the outer surface of the support plate The side is a solar panel (31);

The front panel of the monitoring box body is provided with a display screen (6), a power button (5) and three indicator lights (7); the two sides of the front panel of the monitoring box body are provided with sound-diffusing holes (4);

The monitoring box is equipped with a logic control circuit, a timer, a lithium battery, an operational amplifier, a charging control circuit, an audible and visual alarm and a display drive circuit; the audible and visual alarm includes a buzzer, a loudspeaker and the above-mentioned indicator light;

The timer, lithium battery and sound and light alarm are all connected to the logic control circuit, and the logic control circuit drives the display screen through the display drive circuit; the solar panel charges the lithium battery through the charging control circuit;

The output end of alcohol concentration sensor (8) is connected to logic control circuit through operational amplifier; Alcohol concentration sensor adopts QM-N10 sensor;

The 1st, 2nd and 3rd pins of the QM-N10 sensor are all connected to the positive terminal VCC of the power supply; the 5th pin of the QM-N10 sensor is grounded through the first resistor (R13); the 4th and 6th pins of the QM-N10 sensor are connected to the computing The negative input terminal of the amplifier; the 4th and 6th feet of the QM-N10 sensor are grounded through the second resistor (R14); the variable resistor (R12) is connected between the positive terminal VCC of the power supply and the ground, and the variable resistor (R12) The middle lead-out terminal of the operational amplifier is connected to the positive input terminal of the operational amplifier, and the output terminal of the operational amplifier is connected to the input terminal of the logic control circuit;

The logic control circuit is also provided with an alarm interface for communicating with the MCU of the vehicle, such as a serial interface, for informing the MCU to give a speed limit instruction to the vehicle. the

The alcohol concentration sensor is fixed on the steering wheel. the

Beneficial effect:

The driving safety early warning device based on alcohol detection of the utility model, the monitoring box body and the support plate adopt a mechanism that can adjust the opening and closing angle, so that the driving safety early warning device based on alcohol detection can be stably placed on the car, the structure is novel and Ingenious; the display screen is used to display prompts and alarm information; the indicator light is used to give light signal alarms, and the loudspeaker is used to issue language alarms. the

The solar panel charges the lithium battery, which saves the trouble of charging the lithium battery through other power sources, and is more energy-saving and environmentally friendly. the

This driving safety early warning device based on alcohol detection uses an alcohol concentration sensor to detect the driver's continuous driving time, so as to give a drunk driving alarm when the preset value is exceeded [for example, an alarm is given after driving for 4 hours continuously]. the

Therefore, this driving safety early warning device based on alcohol detection is rich in functions, can give an alarm in real time, is conducive to ensuring driving safety, and has high social benefits. the

Description of drawings

Figure 1 is a schematic diagram of the overall structure of a driving safety warning device based on alcohol detection;

Figure 2 is a front view of the support plate. the

Fig. 3 is the functional block diagram of the driving safety warning device based on alcohol detection;

Figure 4 is a schematic diagram of the alcohol concentration detection circuit. the

Explanation of symbols: 1-monitoring box body, 2-rotating shaft, 3-support plate, 4-sound diffuser hole, 5-power button, 6-display screen, 7-indicator light, 8-alcohol concentration sensor, 11-square bump , 12-axis hole, 31-solar panel. the

Detailed ways

The utility model will be described in further detail below in conjunction with accompanying drawing and specific embodiment:

Example 1:

As shown in Figure 1-4, a driving safety early warning device based on alcohol detection includes a monitoring box 1, a support plate 3 and an alcohol concentration sensor 8; a rotating shaft 2 is provided on the top of the support plate, and 2 are provided on the back side of the top of the monitoring box. A square bump 11 with a shaft hole 12, the two ends of the rotating shaft are respectively inserted in the two shaft holes; the alcohol concentration sensor is connected to the monitoring box body through a wire; the outer surface of the support plate is a solar panel 31 ;

The front panel of the monitoring box body is provided with a display screen 6, a power button 5 and three indicator lights 7; both sides of the front panel of the monitoring box body are provided with sound diffusion holes 4;

The monitoring box is equipped with a logic control circuit, a timer, a lithium battery, an operational amplifier, a charging control circuit, an audible and visual alarm and a display drive circuit; the audible and visual alarm includes a buzzer, a loudspeaker and the above-mentioned indicator light;

The timer, lithium battery and sound and light alarm are all connected to the logic control circuit, and the logic control circuit drives the display screen through the display drive circuit; the solar panel charges the lithium battery through the charging control circuit;

The output end of alcohol concentration sensor (8) is connected to logic control circuit through operational amplifier; Alcohol concentration sensor adopts QM-N10 sensor;

The 1st, 2nd and 3rd pins of the QM-N10 sensor are all connected to the positive terminal VCC of the power supply; the 5th pin of the QM-N10 sensor is grounded through the first resistor R13; the 4th and 6th pins of the QM-N10 sensor are connected to the operational amplifier Negative input terminal; the 4th and 6th pins of the QM-N10 sensor are grounded through the second resistor R14; the variable resistor R12 is connected between the positive terminal VCC of the power supply and the ground, and the middle terminal of the variable resistor R12 is connected to the terminal of the operational amplifier The positive input terminal, the output terminal of the operational amplifier is connected to the input terminal of the logic control circuit;

The logic control circuit is also provided with an alarm interface for communicating with the MCU of the vehicle, such as a serial interface, for informing the MCU to give a speed limit instruction to the vehicle. the

The logic control circuit is constructed by logical gates such as AND gates and OR gates. It is an existing technology, and it is generally implemented by FPGA, which is a pure hardware module. In addition, the logic control circuit and timer can also be integrated in a single-chip microcomputer or DSP. Realization, single-chip microcomputer or DSP is also a kind of integrated logic control circuit in essence, provides abundant IO interface, adopts single-chip microcomputer or DSP to realize logic control is the existing mature technology. The function of the sound diffuser is to radiate the prompt language from the loudspeaker. The charging control circuit is an existing technology, such as adopting a dedicated charging management chip to realize. the

Claims (1)

1. A driving safety early warning device based on alcohol detection is characterized in that it includes a monitoring box body (1), a support plate (3) and an alcohol concentration sensor (8); the support plate top is provided with a rotating shaft (2), and the monitoring Two square projections (11) with shaft holes (12) are arranged on the back side of the top of the box body, and the two ends of the rotating shaft are respectively inserted into the two shaft holes; the alcohol concentration sensor is connected to the monitoring box body through wires on; the outer side of the support plate is a solar panel (31); the front panel of the monitoring box body is provided with a display screen (6), a power button (5) and three indicator lights (7); the front panel of the monitoring box body There are sound-diffusing holes (4) on both sides; The monitoring box is equipped with a logic control circuit, a timer, a lithium battery, an operational amplifier, a charging control circuit, an audible and visual alarm and a display drive circuit; the audible and visual alarm includes a buzzer, a loudspeaker and the above-mentioned indicator light; The timer, lithium battery and sound and light alarm are all connected to the logic control circuit, and the logic control circuit drives the display screen through the display drive circuit; the solar panel charges the lithium battery through the charging control circuit; The output end of alcohol concentration sensor (8) is connected to logic control circuit through operational amplifier; Alcohol concentration sensor adopts QM-N10 sensor; The 1st, 2nd and 3rd pins of the QM-N10 sensor are all connected to the positive terminal VCC of the power supply; the 5th pin of the QM-N10 sensor is grounded through the first resistor; the 4th and 6th pins of the QM-N10 sensor are connected to the negative terminal of the operational amplifier. The input terminal; the 4th and 6th pins of the QM-N10 sensor are grounded through the second resistor; the variable resistor is connected between the positive terminal VCC of the power supply and the ground, and the middle terminal of the variable resistor is connected to the positive input terminal of the operational amplifier. The output terminal of the operational amplifier is connected to the input terminal of the logic control circuit; the alcohol concentration sensor is fixed on the steering wheel; The logic control circuit is also provided with an alarm interface for communicating with the vehicle MCU. the

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