CN209938324U - Multi-information-fusion vehicle-mounted drunk-driving prevention device - Google Patents
Multi-information-fusion vehicle-mounted drunk-driving prevention device Download PDFInfo
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- CN209938324U CN209938324U CN201920423007.2U CN201920423007U CN209938324U CN 209938324 U CN209938324 U CN 209938324U CN 201920423007 U CN201920423007 U CN 201920423007U CN 209938324 U CN209938324 U CN 209938324U
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Abstract
The utility model discloses a vehicle-mounted drunk driving prevention device with multi-information fusion, which comprises a data acquisition module, a control module, a signal output module and a power supply module for supplying power to the whole device, wherein the data acquisition module comprises an acceleration sensor, an angle sensor, a plurality of alcohol gas sensors and a signal conditioning circuit; the control module is a single chip microcomputer, and the plurality of alcohol gas sensors, the angle sensor and the acceleration sensor are respectively connected with the single chip microcomputer through a signal conditioning circuit and send detected signals to the single chip microcomputer; the output end of the single chip microcomputer is connected with the signal output module, and the single chip microcomputer processes the detection signals transmitted by the sensors and sends working signals to the signal output module. The utility model discloses a plurality of sensors gather multiple information, improve greatly and detect the precision, prevent that the driver from drinking wine and driving and cause the traffic accident, the cost is lower, easily promotes.
Description
Technical Field
The utility model relates to a wine drives and detects control technical field, especially relates to a device is driven to on-vehicle wine of preventing of multi-information fusion.
Background
At present, an on-board device for preventing drunk driving is mainly an alcohol tester adopting a blowing mode. And traditional on-vehicle detection device's design thinking almost all adopts single sensor, though possesses certain wine of preventing and drives the function, but single sensor information's collection receives multiple factors influence such as driver's subjective cheating, air current in the car easily, leads to detecting the precision not objective, can not accurately judge whether for the driver drinks, causes the erroneous judgement easily to be difficult for the large tracts of land popularization and promotion.
In view of the above, there is a need for a drunk driving prevention device with multi-information fusion, which can solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide a device is driven to wine of preventing of higher many information fusion of precision.
In order to achieve the above object, the utility model provides a following technical scheme: a multi-information-fusion vehicle-mounted drunk driving prevention device comprises a data acquisition module, a control module, a signal output module and a power supply module for supplying power to the whole device, wherein the data acquisition module comprises an acceleration sensor, an angle sensor, a plurality of alcohol gas sensors and a signal conditioning circuit; the control module is a single chip microcomputer, and the plurality of alcohol gas sensors, the angle sensor and the acceleration sensor are respectively connected with the single chip microcomputer through a signal conditioning circuit and send detected signals to the single chip microcomputer; the output end of the single chip microcomputer is connected with the signal output module, and the single chip microcomputer processes the detection signals transmitted by the sensors and sends working signals to the signal output module; the plurality of alcohol gas sensors comprise three groups, wherein the first group of alcohol gas sensors are positioned on a seat of a driving position, the second group of alcohol gas sensors are arranged at the central position of a steering wheel, and the third group of alcohol gas sensors are arranged at the top of the head of the driving position; the angle sensors comprise two groups, wherein the first group is arranged on a steering shaft of the vehicle, and the second group is arranged on a steering wheel so as to judge whether the vehicle is in a stable driving process; the acceleration sensor comprises two groups, wherein the first group is arranged on a vehicle, the second group is arranged on an accelerator pedal, and the acceleration sensor is used for detecting the change of the acceleration of the vehicle so as to judge whether the acceleration of the vehicle is rapidly changed in the running state.
Preferably, the alcohol gas sensor is MQ-3 gas sensor.
Preferably, the angle sensor is a TLE5012 sensor.
Preferably, the acceleration sensor is an MMA7260 sensor.
Preferably, the signal output module comprises a display device and a voice alarm module, and the voice alarm module is arranged on a vehicle instrument panel.
Preferably, the display device is an LED display screen; the LED display screen is installed on a vehicle instrument panel.
Preferably, the single chip microcomputer is further provided with an external interface, including an ISP interface and a keyboard interface.
Preferably, the device further comprises a wireless communication module, and the wireless communication module is connected to the control module.
Compared with the prior art, the utility model provides a device is prevented wine by many information fusion has following advantage: the system has the advantages that the multiple sensors are adopted to collect multiple information, the accuracy of system judgment is greatly improved, the warning effect is also realized on a driver, traffic accidents caused by the fact that the driver drives the vehicle after drinking wine are prevented, the cost is low, and the popularization is easy.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a flow chart of the present invention;
fig. 3 is a schematic diagram of an acceleration sensor.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1, the multi-information-fused vehicle-mounted drunk driving prevention device comprises a data acquisition module, a control module, a signal output module and a power supply module for supplying power to the whole system, wherein the data acquisition module comprises an acceleration sensor, an angle sensor and a plurality of alcohol gas sensors; the control module is a single chip microcomputer, the signal output module comprises a display device and a voice alarm module, and the plurality of alcohol gas sensors, the angle sensor and the acceleration sensor are respectively connected with the single chip microcomputer and used for sending detected signals to the single chip microcomputer; the output end of the single chip microcomputer is connected with the signal output module, and the single chip microcomputer processes the detection signals transmitted by the sensors and sends working signals to the signal output module. The single chip microcomputer is connected with an external memory and used for storing data acquired by each sensor and other various data. The plurality of alcohol gas sensors comprise three groups, wherein the first group of alcohol gas sensors are positioned on a seat of a driving position, the second group of alcohol gas sensors are arranged at the central position of a steering wheel, and the third group of alcohol gas sensors are arranged at the top of the head of the driving position; the angle sensors comprise two groups, wherein the first group is arranged on a steering shaft of the vehicle, and the second group is arranged on a steering wheel so as to judge whether the vehicle is in a stable driving process; the acceleration sensor is used for detecting the change of the acceleration of the automobile so as to judge whether the acceleration of the automobile is rapidly changed in the driving state.
Under the action of alcohol, the nerve of a driver is paralyzed after drinking, the motor reflex nerve is slow, the perception of stepping on the accelerator by feet is reduced, and the average acceleration of the driver is faster than that under normal conditions under the same scene after drinking. Therefore, the acceleration is adopted as one of the drunk driving judgment reference indexes. The normal visual angle range of people is 180 degrees, and after drinking, the visual angle of people is reduced, and the more drinking, the more the people can not clearly judge the surrounding scenery, so the people can not catch the target. The pre-judgment of the line correction is not timely enough, the operation accuracy of the steering wheel is not enough, the operation range is often too large, the vehicle deviates from a normal running track, and the reverse direction correction is carried out again to ensure the normal running of the vehicle, so that the running route of the vehicle is often subjected to S-shaped curve track running repeatedly. The drunk driving behavior characteristics are diversified, and the steering characteristic state and the steering wheel turning angle of the wheel can also be used as one of the judgment indexes.
The alcohol gas sensor plays an important role, mainly collects the alcohol concentration in the air of a driving position and is used as a basis for judging the alcohol concentration in the gas exhaled by a driver. The presence of the sensor does not affect the driver due to the limited space inside the car, and therefore the sensor chosen must be of a small size. The MQ-3 sensor is a sensor with high precision and high sensitivity. The working range is 10 ppm-1000 ppm of alcohol gas concentration, the response speed is high, the time is less than 10 seconds, the recovery time is short, and the time is less than 30 seconds, so that the excellent performance is shown. When a driver sits at a driving position, the alcohol gas sensor can detect the concentration of alcohol exhaled by the driver from multiple angles and judge whether the driver drinks, so that the detection result is more accurate. The driver pedal acceleration detection circuit adopts an MMA7260 sensor. The MMA7260 sensor is a sensor which is small in size, low in power consumption and provided with a temperature compensation technology, and meanwhile, a signal conditioning circuit is integrated, so that the effect is better. As shown in fig. 3, when the vehicle is accelerated in a certain direction, the middle capacitor plate is displaced to be close to one side and far away from the other side by inertia. The wheel steering angle detection circuit employs a TLE5012 sensor. The TLE5012 angle sensor is widely applied to the field of automobile industry, has the characteristic of high precision, has the maximum measurement error of less than or equal to 1.0 degree, is not easily polluted by dust, oil stain and the like, cannot be influenced by shaking, and is very suitable for vehicle-mounted systems.
As shown in fig. 1-2, when the automobile is started, alcohol gas sensors mounted on a driver seat, a head top and a steering wheel detect the alcohol concentration exhaled by the driver from a plurality of angles to judge whether the driver drinks, an acceleration sensor mounted on the automobile measures the acceleration of the automobile, and the acceleration is measured according to the speed and the amplitude of the accelerator stepped by the foot of the driver, and the two are combined to judge whether the acceleration of the automobile in the driving state is rapidly changed to further evaluate whether the operation ability of the driver is reduced, so that the alcohol gas sensors can be used as one of indexes for judging whether the driver drinks. The angle sensor detects the steering of the automobile and the steering wheel, and judges whether the automobile is in a stable driving process or not and whether the automobile body deviates from a normal running track or not. The sensors collect required data, the acquired electric signals are amplified and processed through the conditioning circuit, and then the digital signals are sent to the single chip microcomputer through the A/D converter. The main work of the single chip microcomputer is to integrate data sent by a plurality of sensors and make fusion judgment. And if the drunk driving is judged according to the calculation result, starting the voice alarm module to warn the driver to stop drunk driving. Meanwhile, the alcohol concentration content in the air is displayed in the display module. In addition, through wireless communication module, to the contact information that has set up, further prevent that the driver from drunk to drive. And an external interface is also arranged, so that the set alarm value can be modified, and the accuracy of the alarm value is improved.
The above-mentioned, only for the preferred embodiment of the present invention, can not limit the scope of the implementation of the present invention, all the equivalent changes and decorations made according to the claims of the present invention should still belong to the scope covered by the present invention.
Claims (8)
1. A multi-information-fusion vehicle-mounted drunk driving prevention device comprises a data acquisition module, a control module, a signal output module and a power supply module for supplying power to the whole device, and is characterized in that the data acquisition module comprises an acceleration sensor, an angle sensor, a plurality of alcohol gas sensors and a signal conditioning circuit; the control module is a single chip microcomputer, and the plurality of alcohol gas sensors, the angle sensor and the acceleration sensor are respectively connected with the single chip microcomputer through a signal conditioning circuit and send detected signals to the single chip microcomputer; the output end of the single chip microcomputer is connected with the signal output module, and the single chip microcomputer processes the detection signals transmitted by the sensors and sends working signals to the signal output module; the plurality of alcohol gas sensors comprise three groups, wherein the first group of alcohol gas sensors are positioned on a seat of a driving position, the second group of alcohol gas sensors are arranged at the central position of a steering wheel, and the third group of alcohol gas sensors are arranged at the top of the head of the driving position; the angle sensors comprise two groups, wherein the first group is arranged on a steering shaft of the vehicle, and the second group is arranged on a steering wheel so as to judge whether the vehicle is in a stable driving process; the acceleration sensor comprises two groups, wherein the first group is arranged on a vehicle, the second group is arranged on an accelerator pedal, and the acceleration sensor is used for detecting the change of the acceleration of the vehicle so as to judge whether the acceleration of the vehicle is rapidly changed in the running state.
2. The multi-information-fusion vehicle-mounted drunk driving prevention device according to claim 1, characterized in that: the alcohol gas sensor is MQ-3 gas sensor.
3. The multi-information-fusion vehicle-mounted drunk driving prevention device according to claim 1, characterized in that: the angle sensor is a TLE5012 sensor.
4. The multi-information-fusion vehicle-mounted drunk driving prevention device according to claim 1, characterized in that: the acceleration sensor is an MMA7260 sensor.
5. The multi-information-fusion vehicle-mounted drunk driving prevention device according to claim 1, characterized in that: the signal output module comprises a display device and a voice alarm module, and the voice alarm module is arranged on a vehicle instrument panel.
6. The multi-information-fusion vehicle-mounted drunk driving prevention device according to claim 5, characterized in that: the display device is an LED display screen, and the LED display screen is arranged on a vehicle instrument panel.
7. The multi-information-fusion vehicle-mounted drunk driving prevention device according to claim 1, characterized in that: the single chip microcomputer is also provided with an external interface comprising an ISP interface and a keyboard interface.
8. The multi-information-fusion vehicle-mounted drunk driving prevention device according to claim 1, characterized in that: also included is a wireless communication module connected to the control module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920423007.2U CN209938324U (en) | 2019-03-29 | 2019-03-29 | Multi-information-fusion vehicle-mounted drunk-driving prevention device |
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| CN201920423007.2U CN209938324U (en) | 2019-03-29 | 2019-03-29 | Multi-information-fusion vehicle-mounted drunk-driving prevention device |
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| CN209938324U true CN209938324U (en) | 2020-01-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110144A (en) * | 2021-03-30 | 2021-07-13 | 苏州恒美电子科技股份有限公司 | Automobile domain control system and working method thereof |
| CN114492525A (en) * | 2022-01-25 | 2022-05-13 | 浙江大学 | Method for monitoring drunk driving by using wireless network and storage medium |
-
2019
- 2019-03-29 CN CN201920423007.2U patent/CN209938324U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110144A (en) * | 2021-03-30 | 2021-07-13 | 苏州恒美电子科技股份有限公司 | Automobile domain control system and working method thereof |
| CN114492525A (en) * | 2022-01-25 | 2022-05-13 | 浙江大学 | Method for monitoring drunk driving by using wireless network and storage medium |
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