CN101169480A - Radar control method for preventing automobile tail collision - Google Patents
Radar control method for preventing automobile tail collision Download PDFInfo
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- CN101169480A CN101169480A CNA2007101713010A CN200710171301A CN101169480A CN 101169480 A CN101169480 A CN 101169480A CN A2007101713010 A CNA2007101713010 A CN A2007101713010A CN 200710171301 A CN200710171301 A CN 200710171301A CN 101169480 A CN101169480 A CN 101169480A
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Abstract
The invention relates to a radar control method for preventing pileup accident of vehicles, and the method comprises the steps as follows: the procedure is normally operated. Distance is measured by a radar system for preventing pileup accident of vehicles. Whether the distance is an available distance is detected. If the distance is not an available distance, whether the distance is less than the rating distance is detected. If the distance is not an available distance, whether the acceleration is less than the rating acceleration is detected. If the distance is an available distance, an alarm is given out. Compared with the prior art, the invention has the advantages that the ultrasonic technique is adopted for the equipment, which can not be influenced by the excellent working performance in rainy days, in fog and in dark. The cost of the system is low and the installation and use of the system are convenient.
Description
Technical field
The present invention relates to the anti-radar that knocks into the back of vehicle, particularly the anti-radar control method that knocks into the back of vehicle.
Background technology
Rear-end collision because road is crowded, usually takes place in vehicle in travelling in the city.City vehicle is normally operated in below 60 kilometers, be a kind of both economical detection mode for adopting the ultrasonic ranging circuit like this, system adopts single-chip microcomputer and ultrasonic measuring distance technology, the back vehicle distance is gathered in real time and analyzed, dangerous situation occurring is to point out, simultaneously brake taillight is lighted caution back driver and slow down, play the anti-purpose that knocks into the back.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of anti-radar control method that knocks into the back of safe and reliable vehicle for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: the anti-radar control method that knocks into the back of vehicle, it is characterized in that, and may further comprise the steps:
(a) program is normally moved;
(b) the anti-radar system range finding of knocking into the back of vehicle;
Whether be coverage, if testing result for being, is then returned step (b), if testing result is then carried out step (d) for not if (c) detecting;
(d) whether detect distance less than nominal distance, if testing result for being, then skips to step (f), if testing result is then carried out step (e) for not;
(e) whether sense acceleration less than rated acceleration, if testing result is then returned step (b) for not, if testing result is for being then to carry out step (f);
(f) report to the police.
The anti-radar system that knocks into the back of described vehicle, comprise pulsing circuit, ultrasonic transmit circuit, ultrasonic transmitter, control single chip computer, taillight control circuit, signal recognition circuit, taillight, reception amplifying circuit, ultrasonic receiver, described pulsing circuit is connected with ultrasonic transmit circuit, and this ultrasonic transmit circuit is connected with ultrasonic transmitter; Described ultrasonic receiver is connected with the reception amplifying circuit, and this reception amplifying circuit is connected with signal recognition circuit, and this signal recognition circuit is connected with control single chip computer; Described taillight is connected with control single chip computer by the taillight control circuit.
Described rated speed is 3m/s.
Described rated acceleration is-1m/s
2
Compared with prior art, the inventive method has the following advantages:
(1) equipment adopts ultrasonic technology to have all having the good operation characteristic on rainy day, greasy weather, night, can not be subjected to what influence;
(2) system cost is low, and system is easy to install.
Description of drawings
Fig. 1 is the process flow diagram of the anti-radar control method that knocks into the back of vehicle of the present invention;
Fig. 2 is the structural representation of the anti-radar system that knocks into the back of vehicle of the present invention.
Embodiment
As shown in Figure 1, the anti-radar control method that knocks into the back of vehicle may further comprise the steps:
(a) program is normally moved;
(b) range finding;
Whether be coverage, if testing result for being, is then returned step (b), if testing result is then carried out step (d) for not if (c) detecting;
(d) whether detect distance less than 3m/s, if testing result for being, then skips to step (f), if testing result is then carried out step (e) for not;
(e) whether sense acceleration is less than-1m/s
2, if testing result is then returned step (b) for not, if testing result is for being then to carry out step (f);
(f) report to the police.
As shown in Figure 2, the anti-radar system that knocks into the back of vehicle, comprise pulsing circuit 1, ultrasonic transmit circuit 2, ultrasonic transmitter 3, control single chip computer 4, taillight control circuit 5, signal recognition circuit 6, taillight 7, receive amplifying circuit 8, ultrasonic receiver 9, pulsing circuit 1 outputs signal to ultrasonic transmit circuit 2, and then passes to ultrasonic transmitter 3; Ultrasonic receiver 9 is connected to and receives on the amplifying circuit 8, receives amplifying circuit 8 signal is delivered to signal recognition circuit 6, and then be connected to control single chip computer 4; Taillight 7 is connected with control single chip computer 4 by taillight control circuit 5.
System is sent the signal of 40KHZ by pulse signal generator, then, drive radiating circuit through Single-chip Controlling, launch a pulse, when pulse runs into the back vehicle reflection echo, when being accepted the circuit reception, signal is by pulse-recognition circuit, and detecting is the pulse of this car emission, and then single-chip microcomputer calculates vehicle headway, simultaneously, through regular time at interval, at the 2nd pulsed drive radiating circuit of emission ..., receive signal equally after, calculate this moment and the back vehicle between distance, computing method:
The ultrasonic ranging principle:
In the vehicle operating,, calculate vehicle distances S by the mistiming that ultrasonic emitting is returned:
S=V
Ultrasound wave* Δ t/2
Suppose that twice range finding time interval is T, then: acceleration:
a＝(S2-S1)/T
Therefore, can in following situation warning message be proposed according to data cases:
The distance of car is less than 3 meters, this tail-light point two; The car brake of prompting back;
When vehicle detection distance greater than 3 meters, calculate the acceleration of vehicle headway, when acceleration is lighted the prompting brake less than 1 meter per second, 2 light for vehicles.
Point out this car driver in digital mode in real time, the acceleration of back vehicle and distance.Danger is to send the cry of reporting to the police.
Claims (4)
1. the anti-radar control method that knocks into the back of vehicle is characterized in that, may further comprise the steps:
(a) program is normally moved;
(b) the anti-radar system range finding of knocking into the back of vehicle;
Whether be coverage, if testing result for being, is then returned step (b), if testing result is then carried out step (d) for not if (c) detecting;
(d) whether detect distance less than nominal distance, if testing result for being, then skips to step (f), if testing result is then carried out step (e) for not;
(e) whether sense acceleration less than rated acceleration, if testing result is then returned step (b) for not, if testing result is for being then to carry out step (f);
(f) report to the police.
2. the anti-radar control method that knocks into the back of vehicle according to claim 1, it is characterized in that, the anti-radar system that knocks into the back of described vehicle, comprise pulsing circuit, ultrasonic transmit circuit, ultrasonic transmitter, control single chip computer, taillight control circuit, signal recognition circuit, taillight, reception amplifying circuit, ultrasonic receiver, described pulsing circuit is connected with ultrasonic transmit circuit, and this ultrasonic transmit circuit is connected with ultrasonic transmitter; Described ultrasonic receiver is connected with the reception amplifying circuit, and this reception amplifying circuit is connected with signal recognition circuit, and this signal recognition circuit is connected with control single chip computer; Described taillight is connected with control single chip computer by the taillight control circuit.
3. the anti-radar control method that knocks into the back of vehicle according to claim 1 is characterized in that described rated speed is 3m/s.
4. the anti-radar control method that knocks into the back of vehicle according to claim 1 is characterized in that described rated acceleration is-1m/s
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101713010A CN101169480A (en) | 2007-11-29 | 2007-11-29 | Radar control method for preventing automobile tail collision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101713010A CN101169480A (en) | 2007-11-29 | 2007-11-29 | Radar control method for preventing automobile tail collision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101169480A true CN101169480A (en) | 2008-04-30 |
Family
ID=39390162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101713010A Pending CN101169480A (en) | 2007-11-29 | 2007-11-29 | Radar control method for preventing automobile tail collision |
Country Status (1)
| Country | Link |
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| CN (1) | CN101169480A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819718A (en) * | 2010-04-26 | 2010-09-01 | 招商局重庆交通科研设计院有限公司 | Identifying and early warning method for traffic accidents |
| CN102294983A (en) * | 2011-06-30 | 2011-12-28 | 东南大学 | Anti-rear-end vehicle-mounted device |
| CN101320093B (en) * | 2008-05-14 | 2012-07-11 | 奇瑞汽车股份有限公司 | Vehicle active security control system and its control method |
| CN103534742A (en) * | 2011-05-18 | 2014-01-22 | 本田技研工业株式会社 | Drive control device |
| CN104627062A (en) * | 2015-01-28 | 2015-05-20 | 重庆电讯职业学院 | Rear-end collision preventing alarm lamp and processing method thereof |
| CN105809889A (en) * | 2016-05-04 | 2016-07-27 | 南通洁泰环境科技服务有限公司 | Safety alarm device |
| CN108154712A (en) * | 2016-12-02 | 2018-06-12 | 罗伯特·博世有限公司 | For running the method and apparatus of vehicle |
-
2007
- 2007-11-29 CN CNA2007101713010A patent/CN101169480A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320093B (en) * | 2008-05-14 | 2012-07-11 | 奇瑞汽车股份有限公司 | Vehicle active security control system and its control method |
| CN101819718A (en) * | 2010-04-26 | 2010-09-01 | 招商局重庆交通科研设计院有限公司 | Identifying and early warning method for traffic accidents |
| CN101819718B (en) * | 2010-04-26 | 2013-04-03 | 招商局重庆交通科研设计院有限公司 | Identifying and early warning method for traffic accidents |
| CN103534742A (en) * | 2011-05-18 | 2014-01-22 | 本田技研工业株式会社 | Drive control device |
| CN103534742B (en) * | 2011-05-18 | 2016-06-01 | 本田技研工业株式会社 | Travel controlling system |
| US9406230B2 (en) | 2011-05-18 | 2016-08-02 | Honda Motor Co., Ltd. | Drive control apparatus |
| CN102294983A (en) * | 2011-06-30 | 2011-12-28 | 东南大学 | Anti-rear-end vehicle-mounted device |
| CN104627062A (en) * | 2015-01-28 | 2015-05-20 | 重庆电讯职业学院 | Rear-end collision preventing alarm lamp and processing method thereof |
| CN104627062B (en) * | 2015-01-28 | 2017-02-22 | 重庆电讯职业学院 | Rear-end collision preventing alarm lamp and processing method thereof |
| CN105809889A (en) * | 2016-05-04 | 2016-07-27 | 南通洁泰环境科技服务有限公司 | Safety alarm device |
| CN108154712A (en) * | 2016-12-02 | 2018-06-12 | 罗伯特·博世有限公司 | For running the method and apparatus of vehicle |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20080430 |