CN203623523U - Detecting and early warning device for A-pillar vision blind area - Google Patents
Detecting and early warning device for A-pillar vision blind area Download PDFInfo
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- CN203623523U CN203623523U CN201320725408.6U CN201320725408U CN203623523U CN 203623523 U CN203623523 U CN 203623523U CN 201320725408 U CN201320725408 U CN 201320725408U CN 203623523 U CN203623523 U CN 203623523U
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Abstract
The utility model discloses a detecting and early warning device for an A-pillar vision blind area. The device comprises an information acquisition unit, a sensor unit, a master control unit, an alarm module and a power supply, wherein the sensor unit is in coupling connection with the information acquisition unit, the sound and light alarm module is in coupling connection with the master control unit, the power supply is in coupling connection with the master control unit, and the information acquisition unit communicates with the master control unit through a CAN-BUS. According to the detecting and early warning device for the A-pillar vision blind area, when the device detects that the distance between a vehicle and a barrier is smaller than an early warming value, the sound and light alarm is started to remind a driver of braking/avoiding, if the device detects that the vehicle has no braking/avoiding behavior, a safety procedure is started, and braking control is started, so that vehicle damage and casualties caused after the vehicle collides with pedestrians and other barriers are prevented.
Description
Technical field
The utility model relates to a kind of device of automobile driving safe, particularly a kind of A post blind area detecting early-warning device.
Background technology
The general every side of motorcar body has three columns, and wherein the batter post of front windshield both sides is on A post.Before automobile is being turned or entered bend, a blind area on the visual field all can, by A post partial occlusion, be caused in driver's the visual field, affects turning sight line, and the sudden stop of even sometimes having to, exists certain potential safety hazard.
The design of A post need to be considered two aspect factors: the one, and the angle problem that it blocks pilot's line of vision, another is A post Rigidity.Should keep the rigidity of A post, reduce again driver's sight line coverage extent, this contradiction is difficult to reach balance in design, therefore occurs that blind area is also inevitable.(in standard GB/T 11562-1994 " automobile driver forward visibility and method of measurement ", having stipulated that the binocular obstacle angle of A post must not exceed 6 °)
Although Ge great automobile vendor is by improving A column section, increase " fenestella " to dwindle binocular blind area.But blind area exists really, in reality, in order to observe road ahead traffic, the method for the handy rotation head of chaufeur and eyes overcomes A post eyes blind area obstacle, but sometimes can not perceive in time side direction road conditions, causes safety hazard.
Among prior art, also have the situation of utilizing front side Reverse Sensor to survey, although tradition is simple, easy to make for the ultrasonic range finder principle of Reverse Sensor, cost compare is low.But analyze after deliberation, it is inadvisable as the range finding sensing instrument of running at high speed on vehicle, mainly contains following two reasons: the one, and hypracoustic speed is subject to external environment variable effect larger, and at different temperature, ultrasonic velocity is different; The 2nd, the decay that square is directly proportional of ultrasonic energy and distance, therefore distance is far away, the super sonic being reflected back is fewer, sensitivity declines very fast, thereby ultrasonic ranging mode is only applicable to compared with short range.The desirable range finding of domestic and international general super sonic is at present 4 meters～5 meters, therefore general only for reversing automobile collision avoidance system.In the time of high speed traveling, in the time detecting that obstacle is reported to the police, very near from the distance of car and obstacle, supply navigating mate strain without enough time.Some utilize camera to show the method for detailed image, inevitably can allow the attention of chaufeur concentrate on these images, in the time running at high speed, have potential risk, and the cost of dual camera is higher, the imaging effect while meeting light and night is also subject to great impact.
Utility model content
It is a kind of for the A post blind area detecting early-warning device to A post blind area detecting early-warning that the purpose of this utility model is to provide.
For solving the problems of the technologies described above, the utility model A post blind area detecting early-warning device, comprising: information acquisition unit; Sensor unit, described sensor unit and described information acquisition unit are of coupled connections; Main control unit; Alarm module, described sound and light alarm module and described main control unit are of coupled connections; And power supply, described power supply and described main control unit are of coupled connections; Wherein said information acquisition unit and described main control unit are by CAN-BUS communication.
Preferably, described A post blind area detecting early-warning device also comprises brake control module, and described brake control module and described main control unit are of coupled connections.
Preferably, described A post blind area detecting early-warning device also comprises LED display module, and described LED display module and described main control unit are of coupled connections.
Preferably, described A post blind area detecting early-warning device also comprises switch, and described switch is connected with described power supply.
Preferably, described information acquisition unit comprises: car speed sensor, distance survey sensor, rotation direction sensor and rotation sensor, described car speed sensor, described distance survey sensor, described rotation direction sensor and described rotation sensor are of coupled connections with described information acquisition unit respectively.
Preferably, described alarm module comprises buzzer phone and Warning light.
Preferably, described car speed sensor is Hall wheel speed sensors.
Preferably, described distance survey sensor is tellurometer survey radar.
Preferably, described distance survey installation of sensors is in A post.
The vehicle range finder module that the utility model A post blind area detecting early-warning device adopts, select its detection range of tellurometer survey radar far away, reliable, its measurement performance of contrast echo wave sensor is subject to the impact of the external factors such as weather less, can obtain the information such as distance and relative velocity between car and target pedestrian, vehicle and other obstacles.Can show in advance both sides, vehicle blind zone obstacle and the real-time distance from car, can make chaufeur fully grasp the situation of blind area, vehicle A post both sides, brake ahead of time/Anti-collision Actions.When detecting in the time that car and obstacle distance are less than early warning value, start sound and light alarm and remind chaufeur to brake/dodge, if detect from car brakeless/dodge behavior, start security procedure, open braking and control.Thereby prevent the vehicle damage and the personal casualty that after Vehicular impact pedestrian and other obstacles, produce.
Accompanying drawing explanation
Fig. 1 is the utility model A post blind area detecting early-warning device block diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model A post blind area detecting early-warning device is described in further detail.
As shown in Figure 1, the utility model A post blind area detecting early-warning device, includes distance survey sensor, information acquisition unit, main control unit.Wherein distance survey sensor is tellurometer survey radar, by launching microwave and sending signal according to the reflection case of microwave to information acquisition unit.Information acquisition unit can be the single controller communicating with car load main control unit, also can be integrated into and have the car load control unit of sensor being controlled to function.In the time that information acquisition unit is single controller, it is connected by CAN-BUS bus with car load control unit.
Main control unit includes signal receiving unit, data processing unit and comparing unit, and signal receiving unit is for receiving the signal of information acquisition unit and being sent to data processing unit.Data processing unit processes to determine whether front exists obstacle and further determine that thereby the actual distance between vehicle and obstacle judges the position of obstacle to the received signal.Comparing unit compares definite actual distance and predefined setting value, in the time that actual distance is greater than setting value, main control unit does not start safety control subprogram, otherwise main control unit starts to carry out safety control subprogram in the time that actual distance is less than setting value.
Acoustic-optic alarm is arranged on interior, and is connected with main control unit by connection lead.Annunciator is the buzzer phone of audible alarm, and can send according to the actual distance size detecting the alerting signal of different stage.In another embodiment, annunciator can be the Warning light telltale that shows that image or word are reported to the police, and it is integrated on the instrument carrier panel of vehicle, thereby sends warning by image or mode word to driver, or is the combination of aforementioned buzzer phone and telltale.
Can be set as opening obstacle ranging system of the present utility model in the time of vehicle launch.Or design the switch element being connected in main control unit for opening or close described obstacle ranging system.Switch is arranged on the also close chaufeur of interior so that obstacle ranging system of the present utility model is manually opened or closed to chaufeur.
When work, first chaufeur determines whether to open the switch of obstacle ranging system of the present utility model according to actual needs.In the time of described switch opens, system initialization also carries out self check, after self check completes microwave radar start and to target area launched microwave, built-in time meter starts timing, during without echoed signal, continue to target area launched microwave; Receive after echoed signal, microwave radar stops launched microwave, built-in time meter stops timing and changes and calculate according to the phase place of echo, after calculating completes in LED screen display the distance from car and obstacle, now the comparing unit in main control unit compares actual distance and preset value, if judging distance safety microwave radar launched microwave starts next round detection, if the dangerous safety control subprogram that starts of judging distance.Safety control program is being received after startup command, activates immediately buzzer phone and Warning light and reminds chaufeur to dodge/brake, if detect, vehicle there is no deceleration, opens braking and controls help car retardation, avoids bumping with vehicle, pedestrian and obstacle.
Below the preferred embodiment of the utility model having been created illustrates, but the utility model is created and is not limited to embodiment, those of ordinary skill in the art also can make all modification being equal to or replacement under the prerequisite without prejudice to the utility model creative spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (9)
1.A post blind area detecting early-warning device, comprising:
Information acquisition unit;
Sensor unit, described sensor unit and described information acquisition unit are of coupled connections;
Main control unit;
Alarm module, described sound and light alarm module and described main control unit are of coupled connections; And
Power supply, described power supply and described main control unit are of coupled connections;
Wherein said information acquisition unit and described main control unit are by CAN-BUS communication.
2. A post according to claim 1 blind area detecting early-warning device, is characterized in that, described A post blind area detecting early-warning device also comprises brake control module, and described brake control module and described main control unit are of coupled connections.
3. A post according to claim 1 blind area detecting early-warning device, is characterized in that, described A post blind area detecting early-warning device also comprises LED display module, and described LED display module and described main control unit are of coupled connections.
4. A post according to claim 1 blind area detecting early-warning device, is characterized in that, described A post blind area detecting early-warning device also comprises switch, and described switch is connected with described power supply.
5. A post according to claim 1 blind area detecting early-warning device, it is characterized in that, described information acquisition unit comprises: car speed sensor, distance survey sensor, rotation direction sensor and rotation sensor, described car speed sensor, described distance survey sensor, described rotation direction sensor and described rotation sensor are of coupled connections with described information acquisition unit respectively.
6. A post according to claim 1 blind area detecting early-warning device, is characterized in that, described alarm module comprises buzzer phone and Warning light.
7. A post according to claim 5 blind area detecting early-warning device, is characterized in that, described car speed sensor is Hall wheel speed sensors.
8. A post according to claim 5 blind area detecting early-warning device, is characterized in that, described distance survey sensor is tellurometer survey radar.
9. according to the A post blind area detecting early-warning device described in claim 5 or 8, it is characterized in that, described distance survey installation of sensors is in A post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725408.6U CN203623523U (en) | 2013-11-18 | 2013-11-18 | Detecting and early warning device for A-pillar vision blind area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725408.6U CN203623523U (en) | 2013-11-18 | 2013-11-18 | Detecting and early warning device for A-pillar vision blind area |
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| CN203623523U true CN203623523U (en) | 2014-06-04 |
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| CN201320725408.6U Expired - Fee Related CN203623523U (en) | 2013-11-18 | 2013-11-18 | Detecting and early warning device for A-pillar vision blind area |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029678A (en) * | 2014-06-06 | 2014-09-10 | 上海大学 | Early warning device for avoiding traffic accidents caused by sight line dead zones |
| CN104442554A (en) * | 2014-10-24 | 2015-03-25 | 中国人民解放军理工大学 | Automobile dead zone detection and safety travelling method and system |
| CN104494542A (en) * | 2014-12-22 | 2015-04-08 | 合肥晟泰克汽车电子有限公司 | Dynamic monitoring system and method for dead zone of vehicle |
| CN104527521A (en) * | 2014-12-26 | 2015-04-22 | 贵州大学 | Automobile intelligent anti-collision auxiliary braking method and system |
| CN104786936A (en) * | 2015-05-05 | 2015-07-22 | 深圳市聚电电子有限公司 | Vehicle main driving A pillar collision early warning system |
| CN108973861A (en) * | 2018-07-24 | 2018-12-11 | 浙江合众新能源汽车有限公司 | A kind of intelligence A column driving safety system |
| CN112506174A (en) * | 2020-12-18 | 2021-03-16 | 合肥工业大学 | Vehicle starting front blind area detection device and method based on CAN bus communication |
| CN112810535A (en) * | 2021-01-18 | 2021-05-18 | 智马达汽车有限公司 | Automobile A column blind area monitoring system, method and terminal |
-
2013
- 2013-11-18 CN CN201320725408.6U patent/CN203623523U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029678A (en) * | 2014-06-06 | 2014-09-10 | 上海大学 | Early warning device for avoiding traffic accidents caused by sight line dead zones |
| CN104442554A (en) * | 2014-10-24 | 2015-03-25 | 中国人民解放军理工大学 | Automobile dead zone detection and safety travelling method and system |
| CN104494542A (en) * | 2014-12-22 | 2015-04-08 | 合肥晟泰克汽车电子有限公司 | Dynamic monitoring system and method for dead zone of vehicle |
| CN104494542B (en) * | 2014-12-22 | 2018-05-04 | 合肥晟泰克汽车电子股份有限公司 | A kind of vehicle blind zone dynamic monitoring system and its method |
| CN104527521A (en) * | 2014-12-26 | 2015-04-22 | 贵州大学 | Automobile intelligent anti-collision auxiliary braking method and system |
| CN104786936A (en) * | 2015-05-05 | 2015-07-22 | 深圳市聚电电子有限公司 | Vehicle main driving A pillar collision early warning system |
| CN108973861A (en) * | 2018-07-24 | 2018-12-11 | 浙江合众新能源汽车有限公司 | A kind of intelligence A column driving safety system |
| CN112506174A (en) * | 2020-12-18 | 2021-03-16 | 合肥工业大学 | Vehicle starting front blind area detection device and method based on CAN bus communication |
| CN112810535A (en) * | 2021-01-18 | 2021-05-18 | 智马达汽车有限公司 | Automobile A column blind area monitoring system, method and terminal |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20211118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |