CN102729892A - Active automobile anti-collision system - Google Patents
Active automobile anti-collision system Download PDFInfo
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- CN102729892A CN102729892A CN2011100912348A CN201110091234A CN102729892A CN 102729892 A CN102729892 A CN 102729892A CN 2011100912348 A CN2011100912348 A CN 2011100912348A CN 201110091234 A CN201110091234 A CN 201110091234A CN 102729892 A CN102729892 A CN 102729892A
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- automobile
- collision system
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Abstract
The invention belongs to the technical field of automobile safety. In the field, in order to prevent automobile collision, the existing stereoscopic visual scheme has the problems of huge operand, high system requirements and bad real-time responsiveness; the radar ranging scheme has the problem of mutual interfered ranging pulses which are emitted by a plurality of travelling automobiles on the road; and consequently, both schemes are not put into practical application. The invention aims to greatly reduce the occurrence of automobile collision accidents. The invention discloses an active automobile anti-collision system which is characterized in that according to the fact whether the strength of a detected echo which is reflected by an obstacle and has a specific identification code reaches a verification threshold or not, the active automobile anti-collision system alarms or brakes.
Description
The invention belongs to the automotive safety technical field.
In this field, in order to prevent auto against, developed the multiple technologies scheme, comprise the scheme of the passive detection the place ahead obstacle distance that utilizes principle of stereoscopic vision; With the scheme of utilizing radar ranging principle detection the place ahead obstacle distance.The stereopsis scheme exists that operand is big, system requirements is high, the problem of real-time response property difference; The radar ranging scheme exists many automobiles of travels down to launch the problem that interferes with each other of range finding pulse, all fails to drop into practical application, and the accident that results in an automobile accident still frequently takes place, and has a strong impact on the people life property safety.
The objective of the invention is, a kind of economic and practical anti-collision system for automobile is provided, thereby, the incidence of automobile collision accident reduced significantly.
The invention discloses a kind of active anti-collision system for automobile, be characterized in: the wave beam of initiatively launching comprises digital code, according to detect by the obstacle reflection, specific identification code is arranged
Echo intensityWhether reach the calibrating threshold value, send alerting signal or self-actuating brake.
A kind of active anti-collision system for automobile disclosed by the invention, shown in accompanying drawing 1, among the figure, the 1st, " identification code transmitter " comprises the active beam of digital code in order to emission, invests vehicle front; The 2nd, obstacle produces backward wave; The 3rd, " heading code reception servo-drive subsystem ", in order to the reception backward wave, and nearer, bigger at obstacle, thereby backward wave intensity (that is, "
Echo intensity") surpass when examining and determine threshold value, sending chimes of doom to the driver, the prompting driver makes the response of ignoring warning or artificial brake, and, under the situation that the lasting nothing of driver responds, through servomechanism, self-actuating brake, the crash-avoidance accident takes place.
Adopt benefit of the present invention to be: to compare with the simple type active collision avoidance system of not launching heading code induction echo intensity, can effectively prevent to disturb mutually between neighbor systems; With the systematic comparison of passive-type stereopsis, need not the complicated calculations process, the real-time response ability is strong, good economy performance; Compare with the active system of radar ranging principle, both do not had the problem of disturbing mutually between neighbor systems, accurately the dyscalculia object distance leaves again, and real-time is better.
Most preferred embodiment of the present invention is shown in accompanying drawing 2: (1) is microcontroller among the figure, intermittently produces 56 kilo hertzs identification pulse string, drives infrared light emission pipe (2) comprises infrared ray from information of identification code to the vehicle front projection; By 56 kilo hertzs of integrated infrared receiving terminals (3) detection of echoes; Emissive porwer or receiving sensitivity are set according to the speed of a motor vehicle that Hall element (4) records by microcontroller (1); Is integrated infrared receiving terminal (3) output digital signal by the heading code of microcontroller identification for the emission of this car when receiving enough strong useful signal? If; Then, start annunciator (5) or start braking mechanism (6) by microcontroller (1).
Claims (5)
1. active anti-collision system for automobile is characterized in: the wave beam of initiatively launching comprises digital code, according to detecting by obstacle echo intensity reflection, that specific identification code is arranged whether reach the calibrating threshold value, sends alerting signal or self-actuating brake.
2. by the described anti-collision system for automobile of claim 1, be characterized in: by microcontroller, the identification pulse string that intermittently produces drives the infrared light emission pipe.
3. by the described anti-collision system for automobile of claim 1, be characterized in: by integrated infrared receiving terminal detection of echoes.
4. by the described anti-collision system for automobile of claim 1, be characterized in: emissive porwer or receiving sensitivity are set according to the speed of a motor vehicle by microcontroller.
5. by claim 1,4 described anti-collision system for automobile are characterized in: measure the speed of a motor vehicle with Hall element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100912348A CN102729892A (en) | 2011-04-08 | 2011-04-08 | Active automobile anti-collision system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100912348A CN102729892A (en) | 2011-04-08 | 2011-04-08 | Active automobile anti-collision system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102729892A true CN102729892A (en) | 2012-10-17 |
Family
ID=46986417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100912348A Pending CN102729892A (en) | 2011-04-08 | 2011-04-08 | Active automobile anti-collision system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102729892A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717512A (en) * | 2016-01-29 | 2016-06-29 | 北京万集科技股份有限公司 | Laser range finding device and method |
| CN107180502A (en) * | 2016-10-11 | 2017-09-19 | 深圳市沃特沃德股份有限公司 | A kind of anti-tamper method of pet wearable device, apparatus and system |
| WO2023123419A1 (en) * | 2021-12-31 | 2023-07-06 | 深圳市大疆创新科技有限公司 | Communication method employing distance measurement device, distance measurement device, and mobile platform |
-
2011
- 2011-04-08 CN CN2011100912348A patent/CN102729892A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717512A (en) * | 2016-01-29 | 2016-06-29 | 北京万集科技股份有限公司 | Laser range finding device and method |
| CN107180502A (en) * | 2016-10-11 | 2017-09-19 | 深圳市沃特沃德股份有限公司 | A kind of anti-tamper method of pet wearable device, apparatus and system |
| WO2023123419A1 (en) * | 2021-12-31 | 2023-07-06 | 深圳市大疆创新科技有限公司 | Communication method employing distance measurement device, distance measurement device, and mobile platform |
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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 |
Application publication date: 20121017 |