CN107499128A - A kind of Drunken driving prevention and control system and control method - Google Patents

Abstract

The invention relates to a system and control method for prevention and control of automobile drunk driving, comprising: an alcohol detection device, a heart rate detection device, a control module, a voice module, and a relay module; the alcohol detection device and the heart rate detection device are respectively connected to the control module; the control module It is connected with voice module and relay module; the relay is connected with engine ignition device. This program realizes the prevention of drunk driving, avoids uncertain risk factors, and ensures driving safety.

Description

A system and control method for prevention and control of automobile drunk driving

technical field

The invention relates to an automobile control system, in particular to a drunk driving prevention control system and a control method.

Background technique

At present, traffic accidents caused by drinking and driving occur frequently. When the alcohol content of the driver is 80mg/100mg, the probability of traffic accidents is 2.5 times that of non-drinkers. When it reaches 100mg/100ml, the probability of traffic accidents is 4.7 times that of non-drinkers. times, even in the state of drinking a small amount of alcohol, the risk of traffic accidents is twice that of the state of non-drinking. How to avoid or reduce the occurrence of drunk driving behaviors is a matter of great concern to the country and people.

The current method is mainly the traffic police department. Under normal circumstances, the traffic police will instruct the driver to stop, and then use the alcohol smell tester to check, and deal with the drunk driving behavior; another abnormal situation is to test the driver after the accident. , to divide responsibility. Both of these situations are dealt with after the event, and it is impossible to prevent drunk driving. Moreover, this inspection method is often only a random inspection method, which cannot achieve a comprehensive inspection.

Therefore, in the existing implementation situation, it is impossible to prevent drunk driving, avoid uncertain risk factors, and ensure driving safety.

Contents of the invention

In order to solve the above-mentioned problems, the present invention provides a preventive-based and active-detection automobile drunk-driving prevention and control system, and the adopted technical solutions are as follows:

An automobile drunk driving prevention and control system, comprising: an alcohol detection device, a heart rate detection device, a control module, a voice module, and a relay module; the alcohol detection device and the heart rate detection device are respectively connected to the control module; the control module is connected to the voice module and the relay module connected; the relay is connected to the engine ignition; characterized in that:

The alcohol detection device includes a gas collection port and an alcohol content analyzer, and the gas collection port is connected with the alcohol content analyzer to detect the driver's alcohol content;

The heart rate detection device includes a heart rate detector to detect the driver's heart rate;

The control module compares the alcohol content data of the alcohol detection device and the heart rate data detected by the heart rate detection device with the standard range data stored in the control module. If the standard data is exceeded, the voice module is controlled to give a prompt, and the relay module is turned off at the same time. If it is on, the engine cannot be ignited; if it is within the standard data, the relay module is closed and the engine starts normally.

As one of the preferred solutions of the above solution: the control module is based on a 51 single-chip microcomputer control circuit, processes and analyzes input signals, and controls the work of the voice module and the relay module.

As one of the preferred solutions of the above solution: the gas collection port and the heart rate detector are arranged on the steering wheel.

As one of the preferred solutions of the above solution: the heart rate detector is an infrared detector or a heart rate detection bracelet.

As one of the preferred solutions of the above solution: the alcohol content analyzer communicates with the control module through an I2C bus.

As one of the preferred solutions of the above-mentioned scheme: the alcohol content analyzer is divided into three states: slight, moderate, and severe, correspondingly generating three kinds of voice information, and the light state is controlled by the control module with double flashing lights and buzzers device; the control module controls the brake pedal, double flashing lights, and buzzer by the control module; the severe state control module controls the ignition device, brake pedal, double flashing lights, and buzzer to warn pedestrians and drivers.

As one of the preferred solutions of the above solution: a pressure sensor is also included, and the pressure sensor is placed at the driver's seat. The pressure sensor is connected with the control module to avoid misjudgment caused by the passenger's alcohol exceeding the standard.

As one of the preferred solutions of the above-mentioned solution: it also includes a mobile terminal, which is used to receive the information of the voice module, and transmit the prompt voice information to the mobile terminal holder to avoid drinking and driving; the mobile terminal and the voice module information via wireless transmission.

The control method of a vehicle drunk driving prevention and control system is characterized in that:

In the first step, the driver gets on the car and unlocks it to start the power supply, and the control system is initialized;

In the second step, the driver blows at the gas collection port, and the alcohol content analyzer analyzes the alcohol content; the heart rate detector detects the driver's heart rate;

The third step is to compare the alcohol content data of the alcohol detection device and the heart rate data detected by the heart rate detection device with the standard range data stored in the control module. If the standard data is exceeded, the voice module is controlled to give a prompt, and the relay module is disconnected at the same time , the engine cannot be ignited; if it is within the standard data, the relay is closed, and the engine is directly unlocked and started.

The working principle of this system is as follows:

First, the driver blows his mouth at the gas collection port of the alcohol detection device, and the alcohol content analyzer detects the driver's alcohol content; the alcohol concentration data is provided by the alcohol gas sensor and the digital-analog circuit, and the heart rate detector detects the driver's heart rate at the same time. The heart rate pulse data is provided by the infrared finger pulse sensor and the digital-analog circuit; then the alcohol content data of the alcohol detection device and the heart rate data detected by the heart rate detection device are transmitted to the control module, and the control module compares the data with the standard range data stored in the module In contrast, if the standard data is exceeded, the voice module is controlled to give a prompt, and the relay module is disconnected at the same time, and the engine cannot be ignited; if it is within the standard data, the relay module is closed at the same time, and the engine starts normally.

The invention detects the driver's gas information through the gas collection port arranged on the steering wheel, and analyzes the alcohol content in the driver's body through the alcohol content analyzer, and simultaneously detects the heart rate, and sends the data to the control module, which controls the relay. Open and close to control the ignition of the engine. This scheme realizes the early warning intervention for drunk driving and warns pedestrians at the same time, which reduces the probability of drunken traffic accidents and ensures driving safety.

Description of drawings:

Fig. 1 is the schematic diagram of automobile drunk driving prevention and control system of the present invention;

Fig. 2 is a schematic diagram of the workflow of the automobile drunk driving prevention and control system in embodiment 1;

3 is a schematic circuit diagram of the automobile drunk driving prevention and control system in Embodiment 1.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Embodiment 1, as shown in Figure 1:

An automobile drunk driving prevention and control system, comprising: an alcohol detection device, a heart rate detection device, a control module, a voice module, and a relay module; the alcohol detection device and the heart rate detection device are respectively connected to the control module; the control module is connected to the voice module and the relay module connection; the relay is connected to the engine ignition;

The alcohol detection device includes a gas collection port and an alcohol content analyzer, and the gas collection port is connected with the alcohol content analyzer to detect the driver's alcohol content;

The heart rate detection device includes a heart rate detector to detect the driver's heart rate;

The control module compares the alcohol content data of the alcohol detection device and the heart rate data detected by the heart rate detection device with the standard range data stored in the module. If the standard data is exceeded, the voice module is controlled to prompt, and the relay module is disconnected at the same time , the engine cannot be ignited; if it is within the standard data, the engine starts normally; during the operation, the driver enters the cab, turns on the power supply, the control module single-chip main control is powered on and started, the relay module is in a high-level disconnected state, analyze after starting Alcohol concentration, if the alcohol concentration is lower than the drunk driving standard data, it will output a low level, the voice prompts no drunk driving, the relay is combined, and the car can start normally; if the alcohol concentration is higher than the drunk driving standard data, analyze the heart rate data, if the heart rate data is within the standard data , the voice prompt is normal, the relay is combined, and the car can start normally; if the alcohol concentration is higher than the standard data for drunk driving and the heart rate data exceeds the standard data, the voice prompts for drunk driving, the relay remains disconnected, and the car cannot start.

As shown in Fig. 2 and Fig. 3, in the control method of a kind of automobile drunk driving prevention and control system, in the first step, the driver gets on the car and unlocks and starts to power on, and the control system is initialized;

In the second step, the driver blows at the gas collection port, and the alcohol content analyzer analyzes the alcohol content;

The third step is to compare the alcohol content data of the alcohol detection device with the standard range data stored in the control module. If it is within the standard data, the relay will be closed, and the engine will be unlocked and started directly; if it exceeds the standard data, it will enter the next step; In the fourth step, if the heart rate data detected by the heart rate detection device is within the standard data, the relay is closed, and the engine is directly unlocked and started; if it exceeds the standard data, the voice module is controlled to prompt, and the relay module is disconnected at the same time, and the engine cannot be ignited The control module is an 89C51 single-chip microcomputer, and the single-chip microcomputer is connected with the vehicle display screen, and the drunk driving information is prompted to the driver through the screen; at the same time, the voice module is connected with the vehicle audio system, and the voice prompts the driver.

The fifth step also includes a mobile terminal, the mobile terminal and the voice module information are transmitted wirelessly, and are used to receive the information of the voice module, and transmit the prompt voice information to the mobile terminal holder. In the case of handling the car, notify relatives or friends to come and drive the car, so as to avoid the driver from drinking and driving.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (9)

1. a kind of Drunken driving prevention and control system, including：Alcohol detecting device, heartbeat detection device, control module, voice mould Block, relay module；Alcohol detecting device, heartbeat detection device are connected with control module respectively；The control module and voice Module, relay module connection；Relay is connected with engine ignitor；It is characterized in that：

The alcohol detecting device includes gas collection mouth, alcohol content analyzer, contains the gas collection mouth and with alcohol Analyzer connection is measured, detects alcohol content of driver；

The heartbeat detection device includes heart rate measuring instrument, detects Variation of Drivers ' Heart Rate；

The control module, by the alcohol content data of alcohol detecting device, heartbeat detection device detect heart rate data with The critical field data being stored in control module are contrasted, if being above standard data, control voice module is prompted, Relay module disconnects simultaneously, and engine can not light a fire；If in normal data, engine normally starts.

A kind of 2. Drunken driving prevention and control system as claimed in claim 1, it is characterised in that：The control module is based on 51 Single chip machine controlling circuit, Treatment Analysis input signal, control voice module and relay module work.

A kind of 3. Drunken driving prevention and control system as claimed in claim 1, it is characterised in that：The gas collection mouth, the heart Rate detector is arranged on steering wheel.

A kind of 4. Drunken driving prevention and control system as claimed in claim 1, it is characterised in that：The heart rate measuring instrument is red Outside line detector or heart rate detection bracelet.

A kind of 5. Drunken driving prevention and control system as claimed in claim 1, it is characterised in that：The alcohol content analyzer Realized and communicated by I2C buses and the control module.

A kind of 6. Drunken driving prevention and control system as described in claim 1 or 4, it is characterised in that：The alcohol content point Analyzer is divided into slight, three kinds of moderate, severe states, corresponds to three kinds of voice messagings of generation, the mild state, by control mould respectively Block control double flashing light, buzzers；The moderate state controls brake pedal, double flashing lights, buzzer by control module；The severe State controlling module controls igniter, brake pedal, double flashing lights, buzzer, realize warning pedestrian and driver.

A kind of 7. Drunken driving prevention and control system as claimed in claim 1, it is characterised in that：Also include pressure sensor, The pressure sensor is placed in pilot set position.

A kind of 8. Drunken driving prevention and control system as claimed in claim 1, it is characterised in that：Also include mobile terminal, use In the information of the reception voice module, and it will be prompted to voice messaging and be sent to mobile terminal holder, avoid driving when intoxicated；Institute Mobile terminal is stated with voice module information by being wirelessly transferred.

A kind of 9. Drunken driving prevention and control system control method as claimed in claim 1, it is characterised in that：

The first step, driver get on the bus to unlock to start and are powered, control system initialization；

Second step, driver are directed at the air blowing of gas collection mouth, alcohol content analyzer analysis alcohol content；Heart rate measuring instrument detects Variation of Drivers ' Heart Rate；

3rd step, the heart rate data detected by the alcohol content data of alcohol detecting device, heartbeat detection device is with being stored in Critical field data in control module are contrasted, if being above standard data, control voice module is prompted, while after Electrical appliance module disconnects, and engine can not light a fire；If in normal data, relay combines, and directly unlocking starts engine.