CN101178856A - Motor vehicle ultrasonic wave anti-overtaking-collision method - Google Patents
Motor vehicle ultrasonic wave anti-overtaking-collision method Download PDFInfo
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- CN101178856A CN101178856A CNA2007100506988A CN200710050698A CN101178856A CN 101178856 A CN101178856 A CN 101178856A CN A2007100506988 A CNA2007100506988 A CN A2007100506988A CN 200710050698 A CN200710050698 A CN 200710050698A CN 101178856 A CN101178856 A CN 101178856A
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- ultrasonic
- motor vehicle
- overtaking
- ultrasonic wave
- collision method
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Abstract
The invention provides a method for preventing vehicles from rear-ending by ultrasonic, which includes the following steps: as to a front vehicle, an ultrasonic receiver is installed at the fore part and an ultrasonic generator is installed at the rear part; and the same to a back vehicle. When faults occur to the front vehicle, the ultrasonic generator is actuated with an ultrasonic field formed at the rear part. When the back vehicle enters the ultrasonic field, the ultrasonic receiver picks up the ultrasonic. After analyzing frequency of the received ultrasonic and comparing speeds with the back vehicle, the back vehicle determines status of the front vehicle such as stopping, driving forwards or driving reversely, thus avoiding false alarms from the front vehicle.
Description
Technical field
The present invention relates to a kind of ultrasonic wave anti-overtaking-collision method, particularly a kind of motor vehicle ultrasonic wave anti-overtaking-collision method.
Background technology
At present, rear-end collision takes place in motor vehicle often in driving process, and this accident incidence under highway and bad weather situation is higher, has influenced traffic safety.The current generation of avoiding rear-end collision is adopted and is strengthened the road surface and observe, maintain safe distance, reduce methods such as the speed of a motor vehicle, but the employing of these methods can not avoid not having owing to mist, rainy day, night the rear-end collision that special circumstances such as illumination take place owing to the front truck fault.
Summary of the invention
The purpose of this invention is to provide a kind ofly when the front truck fault, make the back car beyond safe distance, obtain the method for avoiding rear-end collision to take place of accident warning with non-range estimation.
For achieving the above object, the technical scheme of motor vehicle ultrasonic wave anti-overtaking-collision method of the present invention is: the front end of mmi machine motor-car is installed the ultrasonic receiver rear end ultrasonic generator is installed, and at the front end of back motor vehicle the ultrasonic receiver rear end is installed ultrasonic generator is installed.After current motor vehicle breaks down, start ultrasonic generator, its rear portion has just formed a ultrasonic wave field.When after motor vehicle enter this ultrasonic wave field, will receive ultrasound wave by ultrasonic receiver.The ultrasonic frequency that analysis receives and before relatively the back motor vehicle speed just can be judged motor vehicle be to stop, exercising forward or the subtend enforcement, to avoid the wrong report of the other side's motor vehicle.
Motor vehicle ultrasonic wave anti-overtaking-collision method of the present invention reach distinguish emission hyperacoustic before the enforcement situation of motor vehicle, in time at safe distance warning back automobile driver, avoid failing the purpose of observed rear-end collision owing to reasons such as bad visibilities.
The invention has the beneficial effects as follows: the safety warning right and wrong artificial visually examine obtain, the reliability height.The ultrasound wave that preceding motor vehicle sends need not manually be provided with, and can in time send when fault.Back motor vehicle can be estimated in addition at safe distance and do not reached the generation of making timely processing under the situation and avoiding accident.
Description of drawings
Fig. 1 is the system construction drawing of motor vehicle ultrasonic wave anti-overtaking-collision method of the present invention.
Fig. 2 is the reception process flow diagram of motor vehicle ultrasonic wave anti-overtaking-collision method of the present invention.
1. ultrasonic receivers among the figure, 2. preceding motor vehicle, 3. ultrasonic generator, 4. back motor vehicle.
Embodiment
In Fig. 1, the front end of mmi machine motor-car 2 is installed ultrasonic receiver 1 rear end ultrasonic generator 3 is installed, and at the front end of back motor vehicle 4 ultrasonic receiver 1 rear end is installed ultrasonic generator 3 is installed.
After current motor vehicle breaks down, start ultrasonic generator, its rear portion has just formed a ultrasonic wave field.When after motor vehicle enter this ultrasonic wave field, will receive ultrasound wave by ultrasonic receiver.The ultrasonic frequency that analysis receives and before relatively the back motor vehicle speed just can be judged motor vehicle be to stop, exercising forward or the subtend enforcement, to avoid the wrong report of the other side's motor vehicle
In Fig. 2, illustrate that the present invention is the ultrasonic wave field that sends of motor vehicle before the back motor vehicle enters, will receive ultrasound wave by ultrasonic receiver, be to analyze to the judgement of the situation of preceding motor vehicle by the ultrasonic frequency that receives.
The ultrasonic frequency analysis that receives is a motor vehicle speed and the ultrasonic frequency that receives after the comparison.Motor vehicle speed is higher than the back motor vehicle speed before if the ultrasonic frequency that receives is lower than that ultrasonic generator sends ultrasonic frequency; The part that exceeds is lower than the Doppler effect that this car speed of a motor vehicle produces if the ultrasonic frequency that receives is higher than that ultrasonic generator sends ultrasonic frequency, then before at the bottom of the motor vehicle speed in the back motor vehicle speed; The part that exceeds equals the Doppler effect that this car speed of a motor vehicle produces if the ultrasonic frequency that receives is higher than that ultrasonic generator sends ultrasonic frequency, then before motor vehicle be halted state; The part that exceeds is higher than the Doppler effect that this car speed of a motor vehicle produces if the ultrasonic frequency that receives is higher than that ultrasonic generator sends ultrasonic frequency, then before motor vehicle be that motor line is backward made.
Claims (2)
1. motor vehicle ultrasonic wave anti-overtaking-collision method, it is characterized in that: after current motor vehicle breaks down, start ultrasonic generator, its rear portion has just formed a ultrasonic wave field, when after motor vehicle enter this ultrasonic wave field, will receive ultrasound wave by ultrasonic receiver, analyze the ultrasonic frequency receive and before relatively the back motor vehicle speed just can be judged motor vehicle be to stop, exercising forward or the subtend enforcement.
2. motor vehicle ultrasonic wave anti-overtaking-collision method.Comprise ultrasonic receiver, preceding motor vehicle, ultrasonic generator, back motor vehicle, it is characterized in that: the front end of mmi machine motor-car is installed the ultrasonic receiver rear end ultrasonic generator is installed, and at the front end of back motor vehicle the ultrasonic receiver rear end is installed ultrasonic generator is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100506988A CN101178856A (en) | 2007-12-05 | 2007-12-05 | Motor vehicle ultrasonic wave anti-overtaking-collision method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100506988A CN101178856A (en) | 2007-12-05 | 2007-12-05 | Motor vehicle ultrasonic wave anti-overtaking-collision method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101178856A true CN101178856A (en) | 2008-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100506988A Pending CN101178856A (en) | 2007-12-05 | 2007-12-05 | Motor vehicle ultrasonic wave anti-overtaking-collision method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101178856A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398977B (en) * | 2008-10-13 | 2011-06-15 | 徐菲 | Electronic wireless traffic information indicating system and device for day and night |
| CN102390393A (en) * | 2011-09-09 | 2012-03-28 | 俞钟晓 | Method for preventing rear end collision of motor train |
| CN102490654A (en) * | 2011-11-17 | 2012-06-13 | 唐梓蛟 | Electronic early-warning device and implementation method thereof |
| CN102729893A (en) * | 2012-06-18 | 2012-10-17 | 田祥鑫 | Anti-collision device for automobile |
| CN103253259A (en) * | 2012-12-28 | 2013-08-21 | 湖南吉利汽车部件有限公司 | External braking fault alarm system and implementation method thereof |
-
2007
- 2007-12-05 CN CNA2007100506988A patent/CN101178856A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398977B (en) * | 2008-10-13 | 2011-06-15 | 徐菲 | Electronic wireless traffic information indicating system and device for day and night |
| CN102390393A (en) * | 2011-09-09 | 2012-03-28 | 俞钟晓 | Method for preventing rear end collision of motor train |
| CN102490654A (en) * | 2011-11-17 | 2012-06-13 | 唐梓蛟 | Electronic early-warning device and implementation method thereof |
| CN102729893A (en) * | 2012-06-18 | 2012-10-17 | 田祥鑫 | Anti-collision device for automobile |
| CN103253259A (en) * | 2012-12-28 | 2013-08-21 | 湖南吉利汽车部件有限公司 | External braking fault alarm system and implementation method thereof |
| CN103253259B (en) * | 2012-12-28 | 2015-03-18 | 湖南吉利汽车部件有限公司 | External braking fault alarm system and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080514 |