CN202084188U - Wireless pre-warning device for vehicle traffic accident - Google Patents
Wireless pre-warning device for vehicle traffic accident Download PDFInfo
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- CN202084188U CN202084188U CN2010205382847U CN201020538284U CN202084188U CN 202084188 U CN202084188 U CN 202084188U CN 2010205382847 U CN2010205382847 U CN 2010205382847U CN 201020538284 U CN201020538284 U CN 201020538284U CN 202084188 U CN202084188 U CN 202084188U
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Abstract
The utility model belongs to the field of road traffic safety and relates to a wireless pre-warning device for a vehicle traffic accident. The device can be used for making up the defects of the traditional means adopting infrared, ultrasonic, laser, ordinary radio and the like, and has low cost. The wireless pre-warning device is characterized by consisting of a main controller, a vehicle speed detecting module, a radio transceiver, a stop warning button and an acoustooptic speech alarming module, wherein the transmitting power of the radio transceiver is adjustable, and the radio transceiver can be used for indicating signal receiving strength. A stop warning button signal and a vehicle speed signal detected by the vehicle speed detecting module are transmitted to the main controller through a corresponding cable, the main controller is used for judging whether an automobile is stopped due to drop anchor, emergency braking or a traffic accident according to the button signal and the vehicle speed signal, and informing a rear vehicle by transmitting a radio signal through the radio transceiver; and when the radio transceiver receives a radio accident signal, the radio accident signal is transmitted to the main controller through the corresponding cable, and the main controller drives the acoustooptic speech alarming module to give an alarm prompt through the corresponding cable.
Description
1, technical field
This patent relates to a kind of vehicle traffic accident prior-warning device that belongs to the traffic safety field.
2, background technology
Automobile emergency brake or can be when traffic hazard occurring in a short period of time by original high-speed travel state vanishing speed, and the automobile Chang Yinwei at rear has little time to brake and bump against the vehicle of front, thereby the traffic hazard that leads to a chain of bump, this type of accident all takes place a lot of in China every year, particularly on the highway and have on the road of visual dead angle, such as hairpin bend and climb and fall road etc., this serious threat people's safety of life and property.
There is not visual dead angle though automobile travels on the craspedodrome road, also causes traffic hazard easily.Main cause is that the speed of a motor vehicle is too fast or visibility is very low.Be parked in track central authorities such as last car breakdown or emergency brake or because of traffic hazard takes place itself, the possible speed of a motor vehicle of back vehicle is too fast, situation appears in the vehicle that has little time to discover the front by vision, perhaps owing to reasons such as time, weather, as night running or be meshed in the dense fog and cause visibility to reduce, all might cause serious traffic hazard under the both of these case.
And on the road of hairpin bend or climb and fall, have visual dead angle, and cause traffic hazard easilier, utilize means of communication such as infrared ray, ultrasound wave and laser all can not realize detecting early-warning.
Also there are drawback in common wireless communication means and method for early warning, the direction that can not judge accident vehicle is positioned at the place ahead or rear, can not estimate the distance of thing from the position of accident vehicle, radio transmit power can not be regulated by software setting, can not distinguish in the urban district or on the expressway and travel.
3, summary of the invention
A kind of vehicle traffic accident radio early warning device, it is characterized in that this device is by primary controller, speed of a motor vehicle detection module, have emissive power and can be in harmonious proportion the radio transceiver of signal receiving strength indication, parking reminding button and voice sound and light alarm module are formed, parking reminding push button signalling and the detected vehicle speed signal of speed of a motor vehicle detection module are given primary controller by corresponding cable, primary controller judges that according to button and vehicle speed signal automobile is the parking of casting anchor, traffic hazard still appears in emergency brake, and by radio transceiver transmitted radio signal notice front vehicle, when radio transceiver receives the radio trouble-signal, then give primary controller by corresponding cable, primary controller carries out alarm by corresponding cable actuated voice sound and light alarm module.This device can remedy the deficiency that tradition is utilized the device of means of communication such as infrared ray, ultrasound wave, laser and common radio, and installation cost is cheap.By the real-time sampling to the automobile driving speed signal, whether be emergency brake or traffic hazard occurs if monitoring automobile.If have, then this signal is launched by radio module.This radio module possesses emissive power can be in harmonious proportion received signal intensity indication, the i.e. function of RSSI (Received Signal Strength Indicator).After near vehicle receives trouble-signal by this radio module, utilize voice and acousto-optic to report to the police, slow down the speed of a motor vehicle or take other measures, reach the effect of timely early warning, thereby significantly reduce the generation of traffic hazard to remind the car owner.Accident early warning scope of the present invention can be regulated by software setting, and can reach 1000 meters farthest at field.In addition, the present invention utilizes wireless RSSI function can judge the travel direction of vehicle, and roughly estimates the distance from the accident vehicle position.By intellectual monitoring and the judgement to Vehicle Speed, can also distinguish vehicle is to travel at highway or in the urban district.When being used for the undesired parking of non-traffic hazard, uses the parking reminding button, as roadside breakdown.
4, description of drawings
Fig. 1 is the composition frame chart of vehicle traffic accident wireless alarming system.This method for early warning prerequisite is that each car is all installed a cover vehicle traffic hazard wireless alarming system.This early warning system by primary controller, speed of a motor vehicle detection module, have emissive power and can be in harmonious proportion radio transceiver, parking reminding button and the voice and sound and light alarm module etc. of signal receiving strength indication (RSSI) function and form.Vehicle speed signal is easy to obtain from each car, after reading through primary controller, is converted into the retarded velocity signal, if this signal surpasses preset threshold, it is unusual to judge that then vehicle ' occurs.Primary controller sends its abnormal signal by radio transceiver.After the vehicle at rear receives the RI radio intelligence of the place ahead accident vehicle, report to the police by voice and sound and light alarm module.When being used for the undesired parking of non-traffic hazard, uses the parking reminding button, as roadside breakdown.
5, embodiment
Vehicle traffic accident radio early warning device shown in Figure 1, it is characterized in that this device is by primary controller, speed of a motor vehicle detection module, have emissive power and can be in harmonious proportion the radio transceiver of signal receiving strength indication, parking reminding button and voice sound and light alarm module are formed, parking reminding push button signalling and the detected vehicle speed signal of speed of a motor vehicle detection module are given primary controller by corresponding cable, primary controller judges that according to button and vehicle speed signal automobile is the parking of casting anchor, traffic hazard still appears in emergency brake, and by radio transceiver transmitted radio signal notice front vehicle, when radio transceiver receives the radio trouble-signal, then give primary controller by corresponding cable, primary controller carries out alarm by corresponding cable actuated voice sound and light alarm module.
Situation 1: the vehicle of front casts anchor and belongs to the undesired parking of non-traffic hazard.At this moment can manually press the parking reminding button by the car owner, parking information is launched by the radio transmission module.This prompting button is not only receiving radio accident vehicle signal, average speed surpasses setting threshold in stopping for the previous period, and just work when detecting the speed of a motor vehicle and be zero, to prevent when not needing to report to the police, artificially at random the sending radio trouble-signal.After back vehicle received this information, voice suggestion at once: " about XX rice, the place ahead had vehicle to cast anchor, and please slow down the speed of a motor vehicle.", in wireless range of receiving, the LED flicker does not stop simultaneously, and along with the approaching flicker of distance is accelerated, going beyond the scope then, LED stops flicker.Hummer then is accompanied by the flicker frequency of LED and sends chimes of doom.
Situation 2: the vehicle emergency brake of front or generation traffic hazard.Can be by the car speed signal be carried out real-time sampling, and calculate the retarded velocity signal, if the excessive preset threshold that surpasses of retarded velocity signal then starts the radio transmission module automatically signal is sent.After back vehicle received this information, voice suggestion at once: " there was traffic hazard at about XX rice, the place ahead, please slow down the speed of a motor vehicle.", in wireless range of receiving, the LED flicker does not stop simultaneously, and along with the approaching flicker of distance is accelerated, going beyond the scope then, LED stops flicker.Hummer then is accompanied by the flicker frequency of LED and sends chimes of doom.
The proposition of problem and solution:
Is problem 1: wireless transmitting range 1000 meters purposes that can reach real-time early warning farthest?
Answer: passable.Vehicle Speed is assumed to 200 kilometers/hour (belong to hypervelocity travel), promptly about 56 meter per seconds, 500 meters ÷ 56 meter per seconds so, about 9 seconds pre-warning time.And the emission of early warning signal at most only needs 100 milliseconds.
Problem 2: wireless emission does not have directivity, how to judge whether forwardly accident vehicle?
Answer: wireless emission is not have directivity, but the radio transceiver chip that native system uses has received signal intensity indication (RSSI) function.Travel if the vehicle of cruising and accident vehicle are equidirectional, approaching along with distance then, the receiving intensity of radio signals indication is just big more; Otherwise if the vehicle of cruising and accident vehicle travel in the other direction, then along with the zooming out of distance, the receiving intensity of radio signals indication is just more little.
Is problem 3: how judging being disastershutdown, also the undesired parking of non-accident?
Answer: the Vehicle Speed of disastershutdown generally has rapid variation at short notice, therefore can carry out real-time sampling by the rate signal to vehicle and judge.If be judged as disastershutdown, the radio signal of outwards emission accident then.If be improper parking, then can whether to press the parking cue button by the subjective control of car owner.If the vehicle accident is cast anchor and is parked in road central authorities then can presses the prompting button that stops, outwards send the radio signal of the undesired parking of non-accident this moment.This parking reminding button is not only receiving radio accident vehicle signal, and average speed surpasses and just outwards sends the radio stop sign when setting threshold and current vehicle speed are zero in stopping for the previous period.
Problem 4: if vehicle travels, whenever emergency brake is arranged in the urban district, whether all can send car accident information, thereby cause the traffic order confusion?
Answer: can not.Speed limit is arranged in the urban district, and car speed generally can be very not fast.System is before the transmitting radio trouble-signal, can calculate the average overall travel speed of automobile in stopping for the previous period, if speed is less than preset threshold (as 60 kilometers/hour), judge that then automobile is to drive in the urban district, even detect the emergency brake signal, also not outside transmitting radio accident information.And also auto-idled of parking reminding button this moment.
Problem 5: if two or many cars collisions are arranged, can or can not send the radio signal of same frequency simultaneously, disturb thereby produce, make back vehicle normally to receive radio signals?
Answer: generally can not.Accident vehicle is the first open wireless electricity of meeting receiving function before sending nothing letter electric signal, if there is radio signal to receive, and is the car accident signal, then no longer sends radio signal.Two or many cars collisions, its retarded velocity result of calculation is certain to different with the time that arrives setting threshold, retarded velocity reaches the up-to-date radio trouble-signal that sends out of vehicle of setting threshold at first, after other accident vehicles receive the radio trouble-signal, then send the radio trouble-signal no longer outward, thereby can not cause interference.
Can problem 6: when the busy event in the place ahead took place, whether the front vehicle in the radio reception scope report to the police always, thereby the driver is fed up with?
Answer: can not.Voice and sound and light alarm can stop along with stopping of automobile reporting to the police.Because under the parking of automobile state, automobile is safe, can not knock accident vehicle again, so chimes of doom can be cancelled automatically.
Problem 7: can or can not bump against because of the vehicle that receives the radio trouble-signal and stop with the place ahead at the extraneous vehicle of radio reception?
Answer: can not.Because system has receiving intensity of radio signals indication (RSSI) function, if detect the lowest threshold that RSSI is lower than setting, then when parking of automobile, open the function that sends the radio trouble-signal automatically, in time slow down with the vehicle of reminding the rear and go slowly.This radio signal restarts and speed when reaching preset threshold at automobile, can stop automatically sending.
Claims (1)
1. vehicle traffic accident radio early warning device, it is characterized in that this device is by primary controller, speed of a motor vehicle detection module, have emissive power and can be in harmonious proportion the radio transceiver of signal receiving strength indication, parking reminding button and voice sound and light alarm module are formed, parking reminding push button signalling and the detected vehicle speed signal of speed of a motor vehicle detection module are given primary controller by corresponding cable, primary controller judges that according to button and vehicle speed signal automobile is the parking of casting anchor, traffic hazard still appears in emergency brake, and by radio transceiver transmitted radio signal notice front vehicle, when radio transceiver receives the radio trouble-signal, then give primary controller by corresponding cable, primary controller carries out alarm by corresponding cable actuated voice sound and light alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205382847U CN202084188U (en) | 2010-09-21 | 2010-09-21 | Wireless pre-warning device for vehicle traffic accident |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205382847U CN202084188U (en) | 2010-09-21 | 2010-09-21 | Wireless pre-warning device for vehicle traffic accident |
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| CN202084188U true CN202084188U (en) | 2011-12-21 |
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| CN2010205382847U Expired - Fee Related CN202084188U (en) | 2010-09-21 | 2010-09-21 | Wireless pre-warning device for vehicle traffic accident |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469638A (en) * | 2014-08-22 | 2016-04-06 | 厦门玉圣捷机电科技有限公司 | Intelligent device and method of preventing vehicle from continuous collision |
| CN106463063A (en) * | 2014-06-12 | 2017-02-22 | 日立汽车系统株式会社 | Device for controlling vehicle travel |
| CN107587443A (en) * | 2017-09-30 | 2018-01-16 | 领亚电子科技股份有限公司 | A kind of through street parking warning system |
| CN107742442A (en) * | 2017-10-31 | 2018-02-27 | 奇瑞汽车股份有限公司 | Street lamp early warning system, method, computer-readable recording medium |
| CN110164155A (en) * | 2019-04-24 | 2019-08-23 | 惠州市德赛西威智能交通技术研究院有限公司 | A kind of highway tightens emergency stop by the method and system of warning front vehicle |
-
2010
- 2010-09-21 CN CN2010205382847U patent/CN202084188U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106463063A (en) * | 2014-06-12 | 2017-02-22 | 日立汽车系统株式会社 | Device for controlling vehicle travel |
| CN105469638A (en) * | 2014-08-22 | 2016-04-06 | 厦门玉圣捷机电科技有限公司 | Intelligent device and method of preventing vehicle from continuous collision |
| CN107587443A (en) * | 2017-09-30 | 2018-01-16 | 领亚电子科技股份有限公司 | A kind of through street parking warning system |
| CN107742442A (en) * | 2017-10-31 | 2018-02-27 | 奇瑞汽车股份有限公司 | Street lamp early warning system, method, computer-readable recording medium |
| CN110164155A (en) * | 2019-04-24 | 2019-08-23 | 惠州市德赛西威智能交通技术研究院有限公司 | A kind of highway tightens emergency stop by the method and system of warning front vehicle |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140921 |
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| EXPY | Termination of patent right or utility model |