CN202448760U - Automatic speed limiting device for automobile - Google Patents
Automatic speed limiting device for automobile Download PDFInfo
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- CN202448760U CN202448760U CN2011205706361U CN201120570636U CN202448760U CN 202448760 U CN202448760 U CN 202448760U CN 2011205706361 U CN2011205706361 U CN 2011205706361U CN 201120570636 U CN201120570636 U CN 201120570636U CN 202448760 U CN202448760 U CN 202448760U
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- automatic speed
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- speed limit
- communication bus
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Abstract
The utility model relates to an automatic speed limiting device for an automobile and can better solve the problem of potential risks due to failure of automatic speed limiting of automobiles before pedestrian crossings in the prior art. The technical scheme includes that the automatic speed limiting device comprises a main controller, a camera for shooting ground states before the automobile, a communication bus, an image processing module and a vehicle speed limiting device, wherein the a data output end of the camera is electrically connected with an input end of the image processing module, an output end of the image processing module is electrically connected with the main controller, and a communication interface of the main controller and a control end of the vehicle speed limiting device are electrically connected with the communication bus. According to the automatic speed limiting device, the pedestrian crossings can be detected accurately, the speed of the automobile can be limited, and the driving security of the automobile can be improved.
Description
Technical field
The utility model relates to a kind of vehicle and uses safety guard, particularly a kind of can be before cross walk the automatic speed limit device of car of reduction of speed automatically.
Background technology
At present; Because the lasting improvement of people's lives, the automobile pollution of China also continue to rise, still; The secondary action that the rising of automobile quantity has also brought traffic accident to take place again and again; A large amount of traffic accidents all is to occur on the cross walk, and particularly automobile and pedestrian's collision has brought harm very big for people's the security of the lives and property; The footway is the area occurred frequently of accident, and this is often because a lot of drive drivers and before through the footway, do not have conscious speed limit, let pedestrian's consciousness cause earlier.
Chinese patent notification number CN102069785A discloses a kind ofly based on infrared safe zebra crossing system to sign indicating number technology May 25 2011 day for announcing, belongs to technical field of automotive electronics.This device comprises: RF transmitter and receptor, CPU, Circuits System, annunciator and brake speed-limit device.Its implementation method is: 1) RF transmitter places on the traffic lights, is used to launch the infrared signal that contains light color, temporal information; 2) infrared receiver is positioned at the car front end, is used to receive infrared signal, and reaches Circuits System; 3) speed on the automobile and distance measuring sensor are delivered to Circuits System with institute's measurement information; 4) Circuits System is sent to CPU after with signal conditioning; 5) the CPU butt joint is collected mail to cease and is carried out comprehensive treatment, and reports to the police, forces to brake or do not intervene by situation.Though this technical scheme can reduce the speed of a motor vehicle before traffic lights, on a lot of cross walks, there is not traffic lights, so still there is certain defective in this technical scheme to the speed limit of vehicle.
The utility model content
The purpose of the utility model is to solve and exists the automobile can automatic speed-limiting before cross walk in the above-mentioned prior art, has the problem of potential safety hazard, provide a kind of can be before cross walk the automatic speed limit device of car of reduction of speed automatically.
The utility model solves the technical scheme that its technical matters adopted: a kind of automatic speed limit device of car; Comprise master controller; Described automatic speed limit device of car also includes camera, communication bus, image processing module and the limiting vehicle speed device that is used to take the front part of vehicle ground state; The data output end of described camera is electrically connected with the input end of said image processing module; The mouth of said image processing module is electrically connected with described master controller, and the communication interface of said master controller is electrically connected with said communication bus, and the control end of described limiting vehicle speed device also is electrically connected with said communication bus.Be provided with like this; Be arranged on the camera intake surface image of front part of vehicle, image processing module is analyzed image color then, reads colouring information; The black and white that extracts is wherein analyzed the proportion of black-and-white two color in picture; Judge in the picture black-and-white two color proportion when master controller and can assert that the picture of picked-up is the zebra crossing image near 50% the time that promptly send restricting signal in case confirm as the zebra crossing master controller, restricting signal transfers to the limiting vehicle speed device through communication bus; The work of limiting vehicle speed device, limiting vehicle speed passes through cross walk.
As preferably, described automatic speed limit device of car also includes the GPS navigation module, and the mouth of said GPS navigation module is electrically connected with described master controller.The GPS navigation module is set as accessory equipment, has guaranteed on express highway, do not allow the local SELF CL camera of low speed driving, prevented that the automatic speed-limiting misoperation causes speed of a motor vehicle decline to cause the problem of safety misadventure on express highway.
As preferably, said automatic speed limit device of car also includes alarm module, and said alarm module is electrically connected with described master controller through communication bus.When master controller sends restricting signal, also send restricting signal to alarm module, alarm module is reported to the police, and reminds the user, has got into the speed limit state at present.
As preferably, said automatic speed limit device of car also includes range finding modular converter and speed measuring module, and said range finding modular converter and speed measuring module all are electrically connected with described master controller through communication bus.Be provided with like this; The range finding modular converter can calculate the distance between current vehicle and the cross walk according to camera setting shooting angle onboard; According to the calculating of speed measuring module, draw current vehicle speed then, whether need carry out reduction of speed through calculating of speed and distance is current.
As preferably, described communication bus is the CAN communication bus.Being provided with like this, is because the CAN communication bus is present the most frequently used communication bus, and the setting of CAN bus is nearly all arranged on each car, and it is convenient to add assembling structure, revises fast.
As preferably, described master controller is vehicle-mounted micro controller system.Being provided with like this, is because vehicle-mounted micro controller system is present the most frequently used Vehicle Controller, and the setting of vehicle-mounted micro controller system is nearly all arranged on each car, and it is fast convenient to install the utility model additional.
As preferably, described alarm module is the speech utterance module.Adopt the speech utterance module as alarm module, can effectively the warning of the utility model and the warning of other system effectively be distinguished.
The beneficial effect of the utility model is: the utility model can detect cross walk exactly, and the speed of vehicle is limited, the safety when improving vehicle '.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model.
Among the figure: 1, master controller, 2, the GPS navigation module, 3, camera, 4, image processing module, 5, communication bus, 6, the range finding modular converter, 7, speed measuring module, 8, alarm module, 9, the limiting vehicle speed device.
The specific embodiment
Below through specific embodiment, and combine accompanying drawing, the technical scheme of the utility model is further specified.
Embodiment:
A kind of automatic speed limit device of car (referring to accompanying drawing 1); Present embodiment is supplied power by vehicle power; Comprise master controller 1, be used to take camera 3, communication bus 5, image processing module 4 and the limiting vehicle speed device 9 of front part of vehicle ground state; The anterior headlight that camera 3 is mounted on vehicle is sentenced with the mode that level is 30 degree angles and is aimed at ground, and the data output end of camera 3 is electrically connected with the input end of image processing module 4, and the mouth of image processing module 4 is electrically connected with master controller 1; The communication interface of master controller 1 is electrically connected with communication bus 5, and the control end of limiting vehicle speed device 9 also is electrically connected with communication bus 5.Master controller 1 in the present embodiment is vehicle-mounted micro controller system, and communication bus 5 is the CAN communication bus.Automatic speed limit device of car also includes GPS navigation module 2, alarm module 8, range finding modular converter 6 and speed measuring module 7, and the mouth of said GPS navigation module 2 is electrically connected with master controller 1.Alarm module 8 is the speech utterance module, and alarm module 8 is electrically connected with master controller 1 through communication bus 5, and range finding modular converter 6 all is electrically connected with master controller 1 through communication bus 5 with speed measuring module 7, and limiting vehicle speed device 9 is an electronic throttle.
When present embodiment used, at first, automatic speed limit device of car got electric startup; Camera 3 is taken the front part of vehicle ground state and is given image processing module 4 with the information transfer that photographs, and 4 pairs of image colors of image processing module are analyzed then, read colouring information; Extract black and white wherein, analyze the proportion of black-and-white two color in picture, and real-time Transmission signal to master controller 1; Judge black-and-white two color proportion in the picture when master controller 1, proportion is all greater than 40% less than 60% in the colouring information total amount in picture specifically can to think black and white two colouring informations, and the picture that can assert picked-up is the zebra crossing image; Master controller 1 reads the signal of range finding modular converter 6 and speed measuring module 7 simultaneously, range finding modular converter 6, and the shooting angle that is provided with onboard according to camera 3 calculates the distance between current vehicle and the cross walk; According to the calculating of speed measuring module 7, draw current vehicle speed then, whether need carry out reduction of speed through calculating of speed and distance is current; In case confirm as not farly apart from zebra crossing, and at present car speed is too fast, and then master controller 1 promptly sends restricting signal; Restricting signal transfers to limiting vehicle speed device 9 through communication bus 5, and electronic throttle is pressed limit value work, and while master controller 1 is the output services signal also; Working signal transfers to alarm module 8 through communication bus 5; Alarm module 8 audio alerts are reminded the user, have got into the speed limit state at present.
Above-described embodiment is a kind of preferable scheme of the utility model, is not the utility model is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (7)
1. automatic speed limit device of car; Comprise master controller (1); It is characterized in that: described automatic speed limit device of car also includes camera (3), communication bus (5), image processing module (4) and the limiting vehicle speed device (9) that is used to take the front part of vehicle ground state; The data output end of described camera (3) is electrically connected with the input end of said image processing module (4); The mouth of said image processing module (4) is electrically connected with described master controller (1); The communication interface of said master controller (1) is electrically connected with said communication bus (5), and the control end of described limiting vehicle speed device (9) also is electrically connected with said communication bus (5).
2. according to the said automatic speed limit device of car of claim 1, it is characterized in that: described automatic speed limit device of car also includes GPS navigation module (2), and the mouth of said GPS navigation module (2) is electrically connected with described master controller (1).
3. according to the said automatic speed limit device of car of claim 1, it is characterized in that: said automatic speed limit device of car also includes alarm module (8), and said alarm module (8) is electrically connected with described master controller (1) through communication bus (5).
4. according to the said automatic speed limit device of car of claim 1; It is characterized in that: said automatic speed limit device of car also includes range finding modular converter (6) and speed measuring module (7), and said range finding modular converter (6) and speed measuring module (7) all are electrically connected with described master controller (1) through communication bus (5).
5. according to claim 1 or 2 or 3 or 4 said automatic speed limit device of car, it is characterized in that: described communication bus (5) is a CAN communication bus (5).
6. according to claim 1 or 2 or 3 or 4 said automatic speed limit device of car, it is characterized in that: described master controller (1) is vehicle-mounted micro controller system.
7. according to claim 3 or 4 said automatic speed limit device of car, it is characterized in that: described alarm module (8) is the speech utterance module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205706361U CN202448760U (en) | 2011-12-31 | 2011-12-31 | Automatic speed limiting device for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205706361U CN202448760U (en) | 2011-12-31 | 2011-12-31 | Automatic speed limiting device for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202448760U true CN202448760U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205706361U Expired - Fee Related CN202448760U (en) | 2011-12-31 | 2011-12-31 | Automatic speed limiting device for automobile |
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| Country | Link |
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| CN (1) | CN202448760U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065476A (en) * | 2012-12-20 | 2013-04-24 | 青岛海信网络科技股份有限公司 | Road segment pedestrian crossing controlling method based on vehicles on upstream and vehicles on downstream coordinated |
| CN103318025A (en) * | 2013-06-08 | 2013-09-25 | 浙江科技学院 | Dynamic real-time speed-limiting system for electronic throttle valve vehicle and method thereof |
| CN103832282A (en) * | 2014-02-25 | 2014-06-04 | 长城汽车股份有限公司 | Automobile intelligent speed limiting system and automobile speed limiting method |
| CN104401230A (en) * | 2014-10-15 | 2015-03-11 | 奇瑞汽车股份有限公司 | Automobile speed auxiliary control system and control method thereof |
-
2011
- 2011-12-31 CN CN2011205706361U patent/CN202448760U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065476A (en) * | 2012-12-20 | 2013-04-24 | 青岛海信网络科技股份有限公司 | Road segment pedestrian crossing controlling method based on vehicles on upstream and vehicles on downstream coordinated |
| CN103318025A (en) * | 2013-06-08 | 2013-09-25 | 浙江科技学院 | Dynamic real-time speed-limiting system for electronic throttle valve vehicle and method thereof |
| CN103318025B (en) * | 2013-06-08 | 2016-08-10 | 浙江科技学院 | A kind of electronic throttle vehicle dynamic real-time speed limit system and method |
| CN103832282A (en) * | 2014-02-25 | 2014-06-04 | 长城汽车股份有限公司 | Automobile intelligent speed limiting system and automobile speed limiting method |
| CN103832282B (en) * | 2014-02-25 | 2016-08-31 | 长城汽车股份有限公司 | A kind of Intelligent speed limit system for cars and automobile speed limit method |
| CN104401230A (en) * | 2014-10-15 | 2015-03-11 | 奇瑞汽车股份有限公司 | Automobile speed auxiliary control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20181231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |