CN211809073U - Drunk driving prevention device - Google Patents
Drunk driving prevention device Download PDFInfo
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- CN211809073U CN211809073U CN202020290175.1U CN202020290175U CN211809073U CN 211809073 U CN211809073 U CN 211809073U CN 202020290175 U CN202020290175 U CN 202020290175U CN 211809073 U CN211809073 U CN 211809073U
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Abstract
The utility model relates to a drunk driving prevention device, which comprises an alcohol sensor, wherein the output end of the alcohol sensor is connected with the input end of an AD converter, the output end of the AD converter is connected with a single chip microcomputer, and the output end of the single chip microcomputer is connected with a relay; the normally open contact of the relay is sequentially connected with the automobile igniter and the ignition switch in series and then connected with the power supply, and the alcohol sensor, the singlechip and the relay are respectively and electrically connected with the power supply; the alcohol sensor is used for detecting alcohol information and transmitting signals to the single chip microcomputer through the AD converter, and the single chip microcomputer controls the working state of the relay according to the relation between the signals transmitted by the alcohol sensor and the set alcohol threshold value. The utility model discloses can make the driver unable start-up vehicle after drinking wine, avoid driving after drinking wine, effectively protect the safety of public and self, avoid the emergence of tragedy, ensure traffic order and people's trip safety better.
Description
Technical Field
The utility model belongs to the technical field of the automotive technology and specifically relates to a prevent wine and drive device is related to.
Background
Drunk driving refers to driving a vehicle within 8 hours after drinking, or within 24 hours after intoxication. At present, when the alcohol content in the blood of a vehicle driver is more than or equal to 20mg/100ml and less than 80mg/100ml, the driving behavior belongs to drunk driving; when the alcohol content in the blood of the vehicle driver is more than or equal to 80mg/100ml, the driving behavior belongs to drunk driving. Statistics show that after drunk driving, the probability of accidents is 15 times that of ordinary accidents, and 30% of road traffic accidents are caused by drunk driving and drunk driving.
At present, the existing mode of monitoring drunk driving behaviors is mainly manual monitoring, and a police usually judges whether a driver drives drunk by observing drunk states of a driver such as red face and the like or observing strange and abnormal driving routes of the vehicle by intercepting the vehicle and detecting the alcohol content in the blood of the driver by using a drunk driving detector, but the method has great limitation, and generally the police judges whether the driver drinks by using the alcohol detector after abnormal conditions or traffic accidents occur, so that the drunk driving behavior cannot be fundamentally avoided.
The random detection by police is far from insufficient, and the driving vehicle needs to be improved, so that people cannot start the vehicle after drinking wine, and the drunk driving is fundamentally avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prevent wine and drive device, the device can make the driver unable start-up vehicle after drinking wine, avoids driving after drinking wine, effectively protects the safety of public and self, avoids the emergence of tragedy, ensures traffic order and people's trip safety better.
The utility model aims at realizing through the following technical scheme:
a drunk driving prevention device comprises an alcohol sensor, wherein the output end of the alcohol sensor is connected with the input end of an AD (analog-to-digital) converter, the output end of the AD converter is connected with a single chip microcomputer, and the output end of the single chip microcomputer is connected with a relay; the normally open contact of the relay is sequentially connected with the automobile igniter and the ignition switch in series and then connected with the power supply, and the alcohol sensor, the single chip microcomputer and the relay are respectively and electrically connected with the power supply; the alcohol sensor is used for detecting alcohol information and transmitting signals to the single chip microcomputer through the AD converter, and the single chip microcomputer controls the working state of the relay according to the relation between the signals transmitted by the alcohol sensor and the set alcohol threshold value.
By adopting the technical scheme, the alcohol sensor transmits detected alcohol information to the single chip microcomputer through the AD converter, and the single chip microcomputer controls the working state of the automobile ignition system according to the relation between a signal transmitted by the alcohol sensor and the set alcohol threshold value.
The utility model discloses further set up to: when the signal transmitted by the alcohol sensor received by the single chip microcomputer is smaller than the set alcohol threshold value, the single chip microcomputer outputs a control signal to control the relay to be conducted, and the normally open contact of the relay is closed; when the signal transmitted by the alcohol sensor received by the single chip microcomputer is larger than a set alcohol threshold value, the relay is powered off; the normally open contact is reset open.
By adopting the technical scheme, when the alcohol content is too high, the single chip microcomputer controls the relay to be powered off, the automobile ignition system is powered off, the automobile cannot be started, drunk driving is avoided, the safety of the public and the automobile is effectively protected, and tragedy is avoided; when alcohol content of drinkers is lower than the alcohol threshold value set by the single chip microcomputer, the single chip microcomputer controls the relay to be conducted, the automobile ignition system is communicated, and the automobile can be started normally.
The utility model discloses further set up to: the alcohol sensor is arranged on a steering wheel, the rear side of the alcohol sensor is also provided with an air suction fan fixed on the steering wheel, and the air suction fan is connected with a power supply.
By adopting the technical scheme, the exhaust fan is arranged at the rear side of the alcohol sensor, so that the alcohol sensor can quickly collect alcohol information of a drinker, and alcohol detection can be quickly and timely carried out.
The utility model discloses further set up to: the alarm device is electrically connected with the single chip microcomputer; the single chip microcomputer controls the working state of the alarm device according to the relation between the signal transmitted by the alcohol sensor and the set alcohol threshold value.
By adopting the technical scheme, when the signal transmitted by the alcohol sensor received by the single chip microcomputer is larger than the set alcohol threshold value, the single chip microcomputer outputs a control signal to control the alarm device to start, and sound and light alarm is given out to prompt a drinker to be in a drunk state and is not suitable for driving; when the single chip microcomputer receives the alcohol sensor transmission signal and is smaller than the set alcohol threshold value, the alarm device is closed.
The utility model discloses further set up to: the alarm device comprises a sound alarm and a light alarm.
By adopting the technical scheme, the sound alarm prompts sound alarm, the light alarm prompts light, and double alarm of sound and light is adopted, so that the driver can remind himself and the surrounding people to draw strong attention, and the driver can not drive when drinking and can not drive when driving.
The utility model discloses further set up to: the relay is an srd-05vdc-sl-c relay.
By adopting the technical scheme, the single chip microcomputer controls the on and off of the relay, so that the working state of the contact of the relay is controlled.
The utility model discloses further set up to: the single chip microcomputer is MSP430F 147.
By adopting the technical scheme, the single machine receives the alcohol information sent by the alcohol sensor and controls the working state of the relay connected with the output end of the single machine by comparing the alcohol information with the preset alcohol threshold value.
The utility model discloses further set up to: the alcohol sensor is an HS-3C alcohol sensor.
By adopting the technical scheme, the alcohol sensor uses the electrochemical fuel cell and is characterized by quick response, small temperature and humidity influence, low power consumption, sensitive detection and accurate alcohol concentration detection.
The utility model discloses further set up to: the single chip microcomputer is also electrically connected with a display screen, and the display screen is of a DUER-0700-W4R-D type.
By adopting the technical scheme, the alcohol concentration value sensed by the alcohol sensor is displayed, so that people can conveniently master the drunk degree of a drinker in real time and pay attention to the drunk degree.
The utility model discloses further set up to: the AD converter is MC 14433.
By adopting the technical scheme, the analog signal of the alcohol sensor can be converted into the digital signal for transmission.
To sum up, the utility model discloses a beneficial technological effect does:
the utility model discloses when can reminding the navigating mate alcohol content too high, sound or photoelectric warning, remind the drinker to be unsuitable for driving the vehicle to cut off car ignition system, avoid driving after drinking, effectively protect the safety of public and self, avoid the emergence of tragedy, ensure traffic order and people's trip safety better.
The suction fan is arranged on the rear side of the alcohol sensor, so that the alcohol sensor can quickly collect alcohol information of a drinker, and alcohol detection can be timely and quickly carried out.
Drawings
Fig. 1 is a block diagram of the present invention;
FIG. 2 is a circuit diagram of the alarm device of the present invention;
fig. 3 is a circuit diagram of the relay of the present invention;
fig. 4 is a circuit diagram of the relay and the automobile ignition system of the present invention.
Figure, 1, alcohol sensor; 2. an AD converter; 3. a single chip microcomputer; 4. a relay; 5. a power source; 6. an alarm device; 7. a display screen; 8. an igniter; 9. and an ignition switch.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-4, the utility model relates to a drunk driving prevention device, including alcohol sensor 1, the output of alcohol sensor 1 is connected with the input of AD converter 2, the output of AD converter 2 is connected with singlechip 3, the output of singlechip 3 is connected with relay 4, the continuous normally open contact of relay 4 is connected in series with automobile igniter 8 and ignition switch 9 of gas ignition system in turn and is connected in series with power supply 5, alcohol sensor 1, singlechip 3, relay 4 are respectively and electrically connected with power supply 5; the alcohol sensor 1 is used for detecting alcohol information and transmitting signals to the single chip microcomputer 3 through the AD converter 2, and the single chip microcomputer 3 controls the working state of the relay according to the relation between the signals transmitted by the alcohol sensor 1 and a set alcohol threshold value.
Fig. 3 is a circuit diagram of a relay, fig. 4 is a circuit diagram of the relay and an automobile ignition system, and a normally open contact of the relay 4 is sequentially connected in series with an automobile igniter 8 and an ignition switch 9 of a gas ignition system and is connected in series with a power supply 5.
When the single chip microcomputer 3 receives a signal transmitted by the alcohol sensor 1 and is smaller than a set alcohol threshold value, the single chip microcomputer 3 outputs a control signal to control the conduction of the relay 4, the normally open contact of the relay is closed, and an automobile ignition system is communicated; when the single chip microcomputer 3 receives a signal transmitted by the alcohol sensor 1 and is larger than a set alcohol threshold value, the single chip microcomputer 3 controls the relay 4 to be powered off; the normally open contact is reset open.
The alcohol sensor 1 transmits an analog signal to the AD converter 2, the AD converter 2 converts the analog signal into a digital signal after sampling, quantizing and coding the digital signal and transmits the digital signal to the singlechip 3, the singlechip 3 analyzes the signal, and when the alcohol concentration of the expired alcohol is greater than an alcohol threshold value preset by the singlechip 3, the singlechip 3 controls the alarm device to give an alarm to remind drunk driving; the singlechip 3 controls the relay 4 to be powered off, the normally open contact of the relay is reset to be opened, the automobile ignition system is powered off, and simultaneously, the alcohol concentration is digitally displayed on the display screen 7, so that whether the alcohol is contained in the gas exhaled by the driver or not and the alcohol concentration can be seen from the display screen 7.
Alcohol sensor 1 sets up on the steering wheel, and 1 rear side of alcohol sensor still is equipped with the aspiration fan (not drawn in the picture) of fixing on the steering wheel, and power 5 is connected to the aspiration fan, through the aspiration fan that 1 rear side of alcohol sensor set up, makes alcohol sensor 1 can quick perception alcohol information, in time carries out the detection of alcohol concentration fast.
The alarm device 6 is electrically connected with the single chip microcomputer 3, when the single chip microcomputer 3 receives a signal transmitted by the alcohol sensor 1 and is larger than a set alcohol threshold value, the single chip microcomputer 3 outputs a control signal to control the alarm device 6 to be started, and sound and light alarm is given out to prompt a drinker to be in a drunk state and is not suitable for driving; when the single chip microcomputer 3 receives a signal transmitted by the alcohol sensor 1 and is smaller than a set alcohol threshold value, the single chip microcomputer 3 controls the alarm device 6 to be closed.
As shown in fig. 2, the alarm device 6 includes an audible alarm and a light alarm.
MSP430F147 single-chip microcomputer 3 can be selected as single-chip microcomputer 3, HS-3C alcohol sensor 1 can be selected as alcohol sensor 1, srd-05vdc-sl-C relay 4 is used as relay 4, DUER-0700-W4R-D type display screen 7 is selected as DUER-0700-W4R-D type display screen, and MC14433 can be selected as AD converter 2.
To the technicians in this field, the electronic components such as the single chip microcomputer 3, the alcohol sensor 1, the relay 4, the display screen 7, the AD converter 2 and the like belong to the known technology of the technicians in this field, the selection of the models is not limited to the description in this specification, the connection and control relationship between the single chip microcomputer 3, the relay 4 and the conventional electronic components belong to the common knowledge of the technicians in this field, and the utility model discloses do not change the software used by the single chip microcomputer.
The working process of the utility model is as follows:
a driver enters a cab after drinking, when the alcohol sensor 1 detects that the alcohol content in the vehicle exceeds an alcohol threshold value preset by the single chip microcomputer 3, the single chip microcomputer 3 sends out a control signal to control the alarm device 6 to work, and sound alarm and light alarm are given out to remind the driver; meanwhile, the relay 4 is powered off, the normally open contact of the relay is reset to be opened, the ignition switch 9 and the igniter 8 of the automobile are disconnected, and the automobile cannot be started to ignite.
Specifically, the alcohol sensor 1 transmits the acquired signal to the AD converter, the AD converter converts the analog quantity into the digital quantity and then outputs the digital quantity to the singlechip 3, the singlechip 3 compares the received alcohol sensor 1 signal with a preset alcohol threshold value, and outputs a control signal to the relay 4 and the alarm device 6 to control the corresponding working state of the relay.
When the gas in the driver's mouth is sensed by the alcohol sensor 1, if the signal transmitted by the alcohol sensor 1 is received by the singlechip 3 and is larger than the set alcohol threshold value, the output end of the singlechip 3 connected with the relay 4 outputs a low level signal, the relay 4 is powered off, the normally open contact of the relay is reset and opened, and the automobile ignition system between the ignition switch 9 and the ignition device 8 of the automobile is broken, so that the aim of preventing the ignition of the automobile from starting is fulfilled, and the drunk driving is effectively controlled; meanwhile, the output end of the singlechip 3 connected with the alarm device 6 outputs a high level signal, and the alarm device 6 is started to give out sound alarm and light alarm double alarm effects.
When the single chip microcomputer 3 does not detect the alcohol information or receives that the signal transmitted by the alcohol sensor 1 is smaller than the set alcohol threshold value, the output end of the single chip microcomputer 3 connected with the relay 4 outputs a high level signal, the relay 4 is conducted, and a normally open contact of the relay is closed, so that an automobile ignition system channel between the ignition switch 9 and the igniter 8 is formed, and the automobile can be normally started; meanwhile, the output end of the singlechip connected with the alarm device 6 outputs a low level signal, and the alarm device 6 is closed.
The utility model discloses can detect alcohol concentration in driver's self expired gas, automobile ignition system opens circuit when alcohol concentration surpasss the alcohol threshold value that singlechip 3 predetermines, can't start the car, and the wine that greatly avoids the driver drives the action, has protected other people and self safety.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The drunk driving prevention device is characterized by comprising an alcohol sensor (1), wherein the output end of the alcohol sensor (1) is connected with the input end of an AD converter (2), the output end of the AD converter (2) is connected with a single chip microcomputer (3), and the output end of the single chip microcomputer (3) is connected with a relay (4); the continuous normally open contact of the relay (4) is sequentially connected with an automobile igniter (8) and an ignition switch (9) in series and then is connected with the power supply (5), and the alcohol sensor (1), the singlechip (3) and the relay (4) are respectively and electrically connected with the power supply (5); the alcohol sensor (1) is used for detecting alcohol information and transmitting signals to the single chip microcomputer (3) through the AD converter (2), and the single chip microcomputer (3) controls the working state of the relay according to the relation between the signals transmitted by the alcohol sensor (1) and the set alcohol threshold value.
2. The drunk driving prevention device as defined in claim 1, wherein when the signal transmitted by the alcohol sensor (1) received by the single chip microcomputer (3) is smaller than a set alcohol threshold value, the single chip microcomputer (3) outputs a control signal to control the relay (4) to be conducted, and a normally open contact of the relay is closed; when the single chip microcomputer (3) receives a signal transmitted by the alcohol sensor (1) and is larger than a set alcohol threshold value, the relay (4) is powered off; the normally open contact is reset open.
3. The drunk driving prevention device as defined in claim 1, wherein the alcohol sensor (1) is arranged on a steering wheel, and a suction fan fixed on the steering wheel is further arranged at the rear side of the alcohol sensor (1), and the suction fan is electrically connected with the power supply (5).
4. The drunk driving prevention device as defined in claim 1, further comprising an alarm device (6), wherein the alarm device (6) is electrically connected with the single chip microcomputer (3); the single chip microcomputer (3) controls the working state of the alarm device (6) according to the relation between the signal transmitted by the alcohol sensor (1) and the set alcohol threshold value.
5. Drunken driving prevention device according to claim 4, wherein said alarm device (6) comprises an audible alarm and a light alarm.
6. Anti-drunk driving device according to claim 1, wherein said relay (4) is an srd-05vdc-sl-c relay.
7. The anti-drunk driving device according to claim 1, wherein said single-chip microcomputer (3) is MSP430F 147.
8. Anti-drunk driving device according to claim 1, wherein said alcohol sensor (1) is an HS-3C alcohol sensor.
9. The drunk driving prevention device as defined in claim 1, wherein the single chip microcomputer (3) is further electrically connected with a display screen (7), and the display screen (7) is of a DUER-0700-W4R-D type.
10. The anti-drunk driving device according to claim 1, wherein said AD converter (2) is MC 14433.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290175.1U CN211809073U (en) | 2020-03-10 | 2020-03-10 | Drunk driving prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290175.1U CN211809073U (en) | 2020-03-10 | 2020-03-10 | Drunk driving prevention device |
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| Publication Number | Publication Date |
|---|---|
| CN211809073U true CN211809073U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020290175.1U Active CN211809073U (en) | 2020-03-10 | 2020-03-10 | Drunk driving prevention device |
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| Country | Link |
|---|---|
| CN (1) | CN211809073U (en) |
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2020
- 2020-03-10 CN CN202020290175.1U patent/CN211809073U/en active Active
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