CN104494512A

CN104494512A - Vehicle distance detection alarm

Info

Publication number: CN104494512A
Application number: CN201410805797.2A
Authority: CN
Inventors: 周斌
Original assignee: BAIC Yinxiang Automobile Co Ltd
Current assignee: BAIC Yinxiang Automobile Co Ltd
Priority date: 2014-12-20
Filing date: 2014-12-20
Publication date: 2015-04-08

Abstract

The invention discloses a vehicle distance detection alarm which comprises a controller. The controller is electrically connected with a laser ranging sensor, a voice alarm and a vehicle speed detection unit capable of detecting in realtime when current vehicle speed is larger than or equal to 60Km/h respectively, and the controller comprises a time setting module, a safety distance setting module, a comparison module and an execution module. When the vehicle speed is larger than or equal to 60Km/h, the controller calculates corresponding safety vehicle distance according the vehicle speed, compares the safety vehicle distance with vehicle distance state detected by the laser ranging sensor to judge whether the current vehicle distance is out of the safety vehicle distance or not and starts the voice alarm when the current vehicle distance is smaller than the safety vehicle distance for alarming to prompt a driver to take corresponding measures in advance to avoid safety accidents.

Description

Spacing detection alarm device

Technical field

The present invention relates to a kind of spacing detection alarm device, be specifically related to a kind of spacing detection alarm device based on laser range sensor, it is applied on expressway or through street on the vehicle of running at high speed.

Background technology

Along with the highway communication career development of China is swift and violent, greatly developing of express highway, with huge economic benefit and social benefit, bring the very big demand of traffic safety management, control of traffic and the gordian technique such as information acquisition and process simultaneously, namely " at a high speed " bring startling safe negative effect.According to statistics, in national road traffic accident, knock into the back, collision case accounts for 18%, and in national traffic accidents, knock into the back, collision case ratio up to more than 36%, occupy first of traffic accidents, and knock into the back, collision case is often destructive extremely strong.

The reason of initiation rear-end collision, collision is a lot, main is due to the impact by weather or human element, normal visual field and the reaction time of chaufeur are interfered, can not accurately judging distance and the speed of a motor vehicle, do not take actv. treatment measures in time, thus cause rear-end collision, collision case, cause cataphoretic failure.Although existing automatic navigator has speed of a motor vehicle prompting function, be only limitted to carry out vehicle speed prewarning at different speed-limit road sections, and the measurement of spacing and car and obstacle cannot be realized, chaufeur cannot be reminded to brake in time and remain a safe distance behind the car in front.

Therefore, to design under a kind of motoring condition can automatic detection vehicle apart from and the device of reporting to the police, to remind chaufeur to carry out corresponding emergency measure in advance to avoid the generation of accident, for the safety of raising running, there is positive meaning.

Summary of the invention

For above-mentioned weak point of the prior art, the present invention aims to provide a kind of spacing detection alarm device, it is applied on the automobile of running at high speed, give the alarm to remind chaufeur, so that chaufeur makes corresponding counter-measure in advance to evade safety misadventure when safety distance under spacing is less than present speed time.

To achieve these goals, technical scheme of the present invention: a kind of spacing detection alarm device, it includes controller, carries out the Bus-Speed Monitoring unit detected in real time when this controller is electrically connected with laser range sensor, phonetic alarm respectively and can be more than or equal to 60Km/h to current vehicle speed.

Further, described laser range sensor is DMC-100A miniature laser distance measuring sensor.

Further, described controller includes,

Time setting module, for emergency reaction time of inputting according to corresponding chaufeur and for different automobile types brake sensitivity because usually setting the safety time under different vehicle speed condition;

Safety distance setting module, is electrically connected with Bus-Speed Monitoring unit, time setting module respectively, for jointly determining safety distance by Bus-Speed Monitoring unit and time setting module;

Comparing module, sets compared with the distance that mould calculates by optically focused distance measuring sensor distance and the described safety distance measured apart from front vehicles, roadblock, obtains a result;

Execution module, the result drawn by comparing module controls phonetic alarm.

Further, described phonetic alarm is loud speaker.

Beneficial effect of the present invention: when the speed of a motor vehicle is more than or equal to 60Km/h, controller calculates corresponding safe distance between vehicles according to speed meter, and compares with the spacing state that laser range sensor is measured, and judges current vehicle apart from whether outside safe distance between vehicles.If current vehicle, apart from being less than safe distance between vehicles, starts annunciator, to chaufeur alarm, so that chaufeur makes corresponding counter-measure in advance to evade safety misadventure.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is structural schematic block diagram of the present invention;

Fig. 2 is the structural schematic block diagram of Fig. 1 middle controller.

Detailed description of the invention

The present invention is further described below in conjunction with specific embodiment and accompanying drawing.

One is spacing detection alarm device as shown in Figure 1, 2, and it includes controller 1, carries out the Bus-Speed Monitoring unit 4 detected in real time when this controller 1 is electrically connected with laser range sensor 2, phonetic alarm 3 respectively and can be more than or equal to 60Km/h to current vehicle speed.

When the speed of a motor vehicle is more than or equal to 60Km/h, controller calculates corresponding safe distance between vehicles according to speed meter, and compares with the spacing state that laser range sensor is measured, and judges current vehicle apart from whether outside safe distance between vehicles.If current vehicle, apart from being less than safe distance between vehicles, starts annunciator, to chaufeur alarm, so that chaufeur makes corresponding counter-measure in advance to evade safety misadventure.Described laser range sensor 2 in the present invention is DMC-100A miniature laser distance measuring sensor, this sensor measurement distance reaches 0.9-100m, survey precision is ± 0.5m, resolution reaches 1cm, the RS232/485 of standard exports, baud rate 4800,9600,19200,38400 adjustable, operating voltage DC9-24V, power consumption is less than 2W, and degree of protection reaches IP65.

Further, described controller 1 includes,

Time setting module 13, for emergency reaction time of inputting according to corresponding chaufeur and for different automobile types brake sensitivity because usually setting the safety time under different vehicle speed condition;

Safety distance setting module 12, is electrically connected with Bus-Speed Monitoring unit 4, time setting module 13 respectively, for jointly determining safety distance by Bus-Speed Monitoring unit 4 and time setting module 13;

Comparing module 11, sets compared with the distance that mould 12 calculates by optically focused distance measuring sensor 2 distance and the described safety distance measured apart from front vehicles, roadblock, obtains a result;

Execution module 10, the result drawn by comparing module 11 controls phonetic alarm 3, and preferably this phonetic alarm 3 is loud speaker.

Above the technical scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and embodiment, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, detailed description of the invention and field of application all will change, and in sum, this description should not be construed as limitation of the present invention.

Claims

1. a spacing detection alarm device, it is characterized in that: include controller (1), when this controller (1) is electrically connected with laser range sensor (2), phonetic alarm (3) respectively and can be more than or equal to 60Km/h to current vehicle speed, carry out the Bus-Speed Monitoring unit (4) detected in real time.

2. spacing detection alarm device according to claim 1, is characterized in that: described laser range sensor (2) is DMC-100A miniature laser distance measuring sensor.

3. spacing detection alarm device according to claim 1, is characterized in that: described controller (1) includes,

Time setting module (13), for emergency reaction time of inputting according to corresponding chaufeur and for different automobile types brake sensitivity because usually setting the safety time under different vehicle speed condition;

Safety distance setting module (12), be electrically connected with Bus-Speed Monitoring unit (4), time setting module (13) respectively, for jointly determining safety distance by Bus-Speed Monitoring unit (4) and time setting module (13);

Comparing module (11), sets compared with the distance that mould (12) calculates by optically focused distance measuring sensor (2) distance and the described safety distance measured apart from front vehicles, roadblock, obtains a result;

Execution module (10), the result drawn by comparing module (11) controls phonetic alarm (3).

4. spacing detection alarm device according to claim 3, is characterized in that: described phonetic alarm (3) is loud speaker.