CN102069785A - Safety zebra crossing system based on infrared code checking technology - Google Patents
Safety zebra crossing system based on infrared code checking technology Download PDFInfo
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- CN102069785A CN102069785A CN201010285359XA CN201010285359A CN102069785A CN 102069785 A CN102069785 A CN 102069785A CN 201010285359X A CN201010285359X A CN 201010285359XA CN 201010285359 A CN201010285359 A CN 201010285359A CN 102069785 A CN102069785 A CN 102069785A
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Abstract
The invention provides a safety zebra crossing system based on an infrared code checking technology, which belongs to the technical field of automotive electronics. The safety zebra crossing system comprises an infrared emitter, an infrared receiver, a central processing unit (CPU), a circuit system (comprising an infrared signal circuit, a speed-measuring circuit and a range-measuring circuit), an alarm and a brake speed reducer. An implementation method for the safety zebra crossing system is characterized in that (1) the infrared emitter is arranged on a traffic light and is used for emitting an infrared signal including light color information and time information; (2) the infrared receiver is located at the front end of an automobile and is used for receiving the infrared signal and transmitting the infrared signal to the circuit system; (3) a speed sensor and a range-measuring sensor on the automobile are used for sending measured information to the circuit system; (4) the signal is transmitted to the CPU after being processed by the circuit system; and (5) the CPU is used for comprehensively processing the received information and gives an alarm or carries out forcible braking or does not intervene according to the condition. In the invention, the traditional vehicle or the traffic light in independent application is improved into the interaction of a vehicle and a zebra crossing signal light, and thereby, the goal of better reducing the traffic injury is achieved.
Description
Technical field
The present invention is a kind of safe zebra crossing system of vehicle electric field.Specifically be that application is infrared to the sign indicating number technology, and merge existing emergency braking technology, from vehicle and zebra crossing signal lamp two aspect mutual actions, studied a kind of from technical standpoint standard traffic behavior, to reduce the safe zebra crossing product of personal injury on the zebra crossing to greatest extent.
Background technology
The sustainable development of arteries of communication, the safety traffic situation of Chan Shenging is also severe day by day thereupon, and it is especially dangerous that pedestrian's jaywalk becomes, even generally believe that people the accident that is taken place on the safe zebra crossing also increases day by day.Therefore on zebra crossing, just press for a kind of intelligent and safe zebra crossing of installation system, to guarantee pedestrian's safety to greatest extent.
Improving aspect the traffic of the pedestrian crossing, Chinese invention patent 200610164421.3 has eye-catching, prompting, caution and characteristic attractive in appearance from yellow color, designs a kind of colorful zebra crossing; China's utility model patent 200820022269 is designed a kind of normal pedestrian that both had been applicable to from colour blindness and tritanope's eyes characteristic, is applicable to colour blindness and tritanope's road zebra crossing traffic signal lamp again; China's utility model patent 200620008409 has been designed solar power zebra crossing signal lamp from energy angle.But these all are to motorist's prompting or warning, vehicle are not carried out the function of forced brake under violation driving situation, and if vehicle ' too fast or run into the drunken driving personnel, these caution effects will can be not clearly.At present both at home and abroad the cross roads widespread usage is " high-resolution electronic police " monitoring system, only the vehicle of contrary to traffic regulation is captured and data are preserved, and can not play direct effect for the generation of prevention accident.
Summary of the invention
The present invention is a kind of safe zebra crossing system based on the traffic lights system.Improving on the zebra crossing traffic conditions, reducing traffic injury from vehicle or traffic lights unilaterallys and be modified into, designing a kind of later-model intelligent and safe zebra crossing system from vehicle and zebra crossing signal lamp two aspect mutual actions by traditional.An infrared remote receiver is installed on each automobile, an infrared transmitter is installed on traffic lights, infrared transmitter adopts TLN205 infraluminescence pipe to send infrared light, and infrared remote receiver adopts the TPS708 photosensitive receiving tube to receive infrared light.The infrared transmitter of traffic lights is corresponding with the running state of traffic lights, launches the code signal of representing certain light color and timing time, for comprehensive automobile control system provides the judgement desired data.Comprehensive automobile control system merges existing emergency braking apparatus, speed measuring device and distance measuring equipment (DME), has the intelligent decision function, offer the data of complex control system by ranging system, velocity-measuring system, can learn the travel conditions of automobile, and judge that automobile is to the distance of zebra crossing safety whether, when vehicle is reported to the police less than safety distance the time to the distance of zebra crossing, make the driver hear warning back releasing alerting signal and deceleration, otherwise, less than critical distance the time, will start the brake deceleration device automatically, to reach the purpose of safe driving.
Comprehensive automobile control system is made up of several parts such as LIN bus, data handing, demonstration, operation, warnings by based on AT89C52 microcomputer development platform design.It is its core parts that this Complex Control Center adopts the AT89C52 micro controller system, and its effect is: the crossing forces its braking to stop at before the footway during for red light, and the crossing forces its speed limit within legal controlled range during for green light.Installation rate sensor and distance measuring sensor on automobile in actual applications, speed sensor is sent to data processing center with speed and the acceleration information that records, distance measuring sensor provides range data for control center, infrared transmitter provides corresponding signal and time data, vehicle-mounted infrared remote receiver receives behind the signal this direct information AT89C52, this chip is analyzed information, through calculating the criticality safety distance after the information fusion processing, the Display and Alarm Circuit lang sound of can output alarm going forward side by side is reminded, if the driver initiatively is not controlled at the speed of a motor vehicle in the preset range or removes warning device in 2s, then start and force control system, act on the aperture of ECU (Electrical Control Unit) control throttle by the instruction control operating part, brake system work simultaneously is lower than the safety value of system-computed up to speed.The LIN bus then is to be responsible for the communication between system (AT89C52) and each ECU (Electrical Control Unit) and to show spacing value and vehicle speed value.
Simultaneously, native system is by taking all factors into consideration emission side and take over party's cost, also have the legibility of coded format, easily extendability, anti-interference resistance, to all many-sides such as requirement of device, analysis to infrared remote coding technology and communications protocol, optimize the uniqueness design-calculated scheme of best infrared remote coding, overcome the common string sign indicating number problem of passing through infrared correlation control.
Description of drawings
Fig. 1 is a principle schematic of the present invention;
Fig. 2 is an installation outward appearance birds-eye view of the present invention.
Description of reference numerals:
The 1-infrared transmitter; The 2-infrared receiver; The 3-CPU treater; The 4-Circuits System; The 5-annunciator; The 6-brake gear.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated:
As shown in Figure 1, safe zebra crossing system comprises infrared transmitter 1, infrared receiver 2, CPU treater 3, Circuits System 4, annunciator 5 and brake gear 6, wherein Circuits System comprises infrared signal circuit, tachometer circuit and ranging circuit, and CPU adopts micro controller systems such as AT89C52.
As shown in Figure 2, infrared transmitter 1 is installed on the traffic lights of the pedestrian crossing, and its height can guarantee that infrared signal covers safety distance unobstructedly and sails vehicle with interior all.The position of infrared receiver 2 must guarantee not by other partial occlusions of vehicle body, so select two places shown in Figure 2 to install.Ultrared range of wavelength can select the value in the atmosphere transparency window oral region to be used for this product.Annunciator is installed on control surface place, driver the place ahead, the convenient observation and operation.Brake gear needs to amplify the brake control signal that CPU spreads out of with amplifying circuit earlier, start high-power resistance generation device by relay, to reach the purpose of the safety control speed of a motor vehicle.The range finding detecting head need be installed on the eminence front end of vehicle body equally.All the other amplifications, filtering, comparator circuit can be integrated in the circuit card, as the master control platform jointly with CPU.
During this system start-up, infrared transmitter just constantly transmits, and vehicle-mounted infrared receptor is in opening, receives the infrared signal that captures at any time.Infrared receiver starts CPU master control platform after sensing infrared signal, CPU master control platform enters mode of operation, CPU can carry out comprehensive calculation process according to full details such as at that time speed, distances, judge whether to be safe driving, report to the police, force brake or do not make to intervene (under the safe driving situation) by situation.When a period of time no longer included infrared signal and is caught in, CPU entered sleep pattern, and infrared receiver continues to keep normal working, guaranteed the economic and reliable of this system.
Claims (7)
1. safe zebra crossing system, comprise infrared transmitter (1), infrared receiver (2), CPU treater (3), Circuits System (4), annunciator (5) and brake gear (6), it is characterized in that infrared transmitter (1) is installed on the traffic lights, is used to launch the infrared signal that comprises light color, time signal; Infrared receiver (2) is positioned at the car front end, is used to receive infrared signal; Circuits System (4) is sent to CPU treater (3) after signal normalization is handled, and CPU controls annunciator (5) and brake gear (6) according to actual conditions; Report to the police less than safety distance the time to the distance of zebra crossing when vehicle, the driver is heard report to the police the back to remove alerting signal and slow down, otherwise, less than critical distance the time, will start the brake deceleration device automatically, to reach the purpose of safe driving.
2. as the described safe zebra crossing of claims 1 system, it is characterized in that: infrared transmitter (1) install with traffic lights on, time, light color and control signal are encoded jointly.
3. as the described safe zebra crossing of claims 1 system, it is characterized in that: Circuits System (4) is made up of infrared signal circuit, tachometer circuit and ranging circuit.
4. as the described safe zebra crossing of claims 1 system, it is characterized in that: CPU treater (3) adopts the 89C52 micro controller system.
5. as the described safe zebra crossing of claims 1 system, it is characterized in that: annunciator (5) is with blinking red lamp and weak point and fast sound is warned jointly.
6. as the described safe zebra crossing of claims 1 system, it is characterized in that: brake gear (6) is started by relay, and relay is by the CPU control signal control of amplifying.
7. as the described safe zebra crossing of claims 1 system, it is characterized in that: the components of system as directed except that infrared transmitter (1) and infrared remote receiver (2) can enter sleep pattern, guarantees the economy of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010285359XA CN102069785A (en) | 2010-09-14 | 2010-09-14 | Safety zebra crossing system based on infrared code checking technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010285359XA CN102069785A (en) | 2010-09-14 | 2010-09-14 | Safety zebra crossing system based on infrared code checking technology |
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| CN102069785A true CN102069785A (en) | 2011-05-25 |
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| CN201010285359XA Pending CN102069785A (en) | 2010-09-14 | 2010-09-14 | Safety zebra crossing system based on infrared code checking technology |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509089A (en) * | 2011-11-29 | 2012-06-20 | 青岛科技大学 | Method for recognizing zebra crossing and measuring zebra crossing distance based on line-by-line scanning |
| CN102881180A (en) * | 2012-09-25 | 2013-01-16 | 浙江吉利汽车研究院有限公司杭州分公司 | Control device and method for preventing vehicles from running red light |
| CN103253247A (en) * | 2012-12-28 | 2013-08-21 | 湖南吉利汽车部件有限公司 | Method and system for automatically controlling automobile to not run red light |
| CN104494444A (en) * | 2014-12-05 | 2015-04-08 | 苏州沃斯麦机电科技有限公司 | Automobile speed control system |
| CN104626987A (en) * | 2014-12-05 | 2015-05-20 | 苏州沃斯麦机电科技有限公司 | Car speed control method |
| CN105128838A (en) * | 2015-09-11 | 2015-12-09 | 浙江吉利汽车研究院有限公司 | Method and system for initiatively reducing speed of vehicle on pedestrian crosswalk |
| CN109989332A (en) * | 2019-05-06 | 2019-07-09 | 中国人民解放军陆军军事交通学院镇江校区 | The control system on beach is supported for loading stage |
| CN111016861A (en) * | 2018-10-10 | 2020-04-17 | 天津农学院 | Automobile forced braking system |
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| CN1085335A (en) * | 1992-10-05 | 1994-04-13 | 王建群 | Automatic safety control system for motor vehicle in the intersection |
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| CN1815520A (en) * | 2005-02-03 | 2006-08-09 | 现代奥途纳特株式会社 | System and method for preventing traffic signal violation using infrared communication |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509089A (en) * | 2011-11-29 | 2012-06-20 | 青岛科技大学 | Method for recognizing zebra crossing and measuring zebra crossing distance based on line-by-line scanning |
| CN102509089B (en) * | 2011-11-29 | 2013-06-19 | 青岛科技大学 | Method for recognizing zebra crossing and measuring zebra crossing distance based on line-by-line scanning |
| CN102881180A (en) * | 2012-09-25 | 2013-01-16 | 浙江吉利汽车研究院有限公司杭州分公司 | Control device and method for preventing vehicles from running red light |
| CN102881180B (en) * | 2012-09-25 | 2016-09-21 | 浙江吉利汽车研究院有限公司杭州分公司 | Prevent the control apparatus and method of running red light for vehicle |
| CN103253247A (en) * | 2012-12-28 | 2013-08-21 | 湖南吉利汽车部件有限公司 | Method and system for automatically controlling automobile to not run red light |
| CN103253247B (en) * | 2012-12-28 | 2015-11-04 | 湖南吉利汽车部件有限公司 | A kind of anti-make a dash across the red light automobile autocontrol method and system |
| CN104494444A (en) * | 2014-12-05 | 2015-04-08 | 苏州沃斯麦机电科技有限公司 | Automobile speed control system |
| CN104626987A (en) * | 2014-12-05 | 2015-05-20 | 苏州沃斯麦机电科技有限公司 | Car speed control method |
| CN105128838A (en) * | 2015-09-11 | 2015-12-09 | 浙江吉利汽车研究院有限公司 | Method and system for initiatively reducing speed of vehicle on pedestrian crosswalk |
| CN105128838B (en) * | 2015-09-11 | 2019-05-14 | 浙江吉利汽车研究院有限公司 | The method and system of active reduction of speed are carried out to automobile in crossing |
| CN111016861A (en) * | 2018-10-10 | 2020-04-17 | 天津农学院 | Automobile forced braking system |
| CN109989332A (en) * | 2019-05-06 | 2019-07-09 | 中国人民解放军陆军军事交通学院镇江校区 | The control system on beach is supported for loading stage |
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Application publication date: 20110525 |