CN204674461U - Automobile anti-rear-end-collisalarm alarm device - Google Patents
Automobile anti-rear-end-collisalarm alarm device Download PDFInfo
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- CN204674461U CN204674461U CN201520390817.4U CN201520390817U CN204674461U CN 204674461 U CN204674461 U CN 204674461U CN 201520390817 U CN201520390817 U CN 201520390817U CN 204674461 U CN204674461 U CN 204674461U
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- emitting diode
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- collisalarm
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Abstract
The utility model discloses automobile anti-rear-end-collisalarm alarm device, comprise central process unit, information collecting device, telltale and warning circuit, described central process unit connects warning circuit, information collecting device and telltale simultaneously, central process unit also connects relay, relay is connected with LED stoplight stop lamp, the light emitting diode matrix that LED stoplight stop lamp is wherein nanosecond by response time forms, light emitting diode matrix forms inner ring light-emitting diode, centre circle light-emitting diode and outer ring light-emitting diode, and information collecting device wherein comprises brake pedal position sensor.This programme is by above-mentioned principle, and structure is simple, and commonality is good, the travel situations information of monitoring automobile that can be multi-faceted, and the abnormal condition of Timeliness coverage running car, make a response fast, reminds navigating mate to make brake measure.
Description
Technical field
The utility model relates to automotive field, is specifically related to automobile anti-rear-end-collisalarm alarm device.
Background technology
Along with China's automobile pollution increases year by year, the development of express highway makes the moving velocity of automobile more and more faster.Vehicle flowrate is also increasing, causes traffic accidents again and again to occur, and its incidence even reaches 4 times of average highway, and on the rise.Especially in the majority with rear-end collision collision in the traffic accident that express highway occurs, account for 30% ~ 40%, and in these accidents, the accident of more than 80% is reacted not in time due to driver or error in judgement causes.Just collision prevention device is furnished with owing to only having top-of-the-range version at present, and only consider merely in design in the past, before car or after car, collision prevention device is installed, comprehensive not to the utmost, so the safety device knocked into the back after designing a set of low cost, automobile anti-car front truck that commonality is good has wide application and market outlook.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides automobile anti-rear-end-collisalarm alarm device, and this apparatus structure is simple, commonality is good, the travel situations information of monitoring automobile that can be multi-faceted, the abnormal condition of Timeliness coverage running car, make a response fast, remind navigating mate to make brake measure.
For solving above-mentioned technical matters, the utility model is by the following technical solutions: automobile anti-rear-end-collisalarm alarm device, comprise central process unit, information collecting device, telltale and warning circuit, described central process unit connects warning circuit simultaneously, information collecting device and telltale, central process unit also connects relay, relay is connected with LED stoplight stop lamp, the light emitting diode matrix that LED stoplight stop lamp is wherein nanosecond by response time forms, light emitting diode matrix forms inner ring light-emitting diode, centre circle light-emitting diode and outer ring light-emitting diode, information collecting device wherein comprises brake pedal position sensor.The 1 W high-brightness LED that light-emitting diode selects Evedight company to produce, its response time is nanosecond, and warm start time about 250 ms of common car light, compared with common car light, brake warning can be sent sooner, remind navigating mate to make a response sooner, thus effectively avoid the generation of rear-end collision, in addition, stoplight stop lamp adopts three circle light-emitting diode circulations to light, brightness is high, and response is fast, even if part-diodes damages and affects the normal operation work of whole device.
Described information collecting device also comprises distance measuring sensor, speed sensor and road surface select switch.Distance measuring sensor, speed sensor are all connected central process unit with road surface select switch.
Described road surface select switch is road surface, manual type three contact select switch.
Because the electrical resistivity of semi-conducting material, mechanical mobility and carrier concentration etc. vary with temperature and affect survey precision, this intensity of variation is different with different semi-conducting material, export for temperature changes on sensor or input the impact of internal resistance, described distance measuring sensor, speed sensor and the equal shunt resistance of brake pedal position sensor mouth.
The model of described central process unit is AT89S252.It is a low voltage, high-performance CMOS 8 micro controller systems, sheet includes the Flash read-only program memory of 8k bytes and the random access data storage of 256 bytes, compatibility standard MCS-51 instruction repertoire, powerful, the information that information acquisition unit is collected can process by it, and according to circumstances exports control signal to telltale and alarm circuit.
Compared with prior art, the beneficial effects of the utility model are:
1, in this programme stoplight stop lamp adopt be light-emitting diode, the 1 W high-brightness LED that light-emitting diode selects Evedight company to produce, its response time is nanosecond, and warm start time about 250 ms of common car light, compared with common car light, brake warning can be sent sooner, navigating mate is reminded to make a response sooner, thus effectively avoid the generation of rear-end collision, in addition, stoplight stop lamp adopts three circle light-emitting diode circulations to light, and brightness is high, response is fast, even if part-diodes damages and affects the normal operation work of whole device.
2, this apparatus structure is simple, used unit is universal component, commonality is good, the travel situations information of the monitoring automobile that the brake pedal position sensor arranged, distance measuring sensor, speed sensor energy is multi-faceted, the abnormal condition of Timeliness coverage running car, make a response fast, remind navigating mate to make brake measure.
Accompanying drawing explanation
Fig. 1 is functional block diagram of the present utility model.
Detailed description of the invention
Be further elaborated the utility model below in conjunction with accompanying drawing, embodiment of the present utility model is not limited thereto.
Embodiment:
As shown in Figure 1, the utility model comprises central process unit, information collecting device, telltale and warning circuit, described central process unit connects warning circuit, information collecting device and telltale simultaneously, central process unit also connects relay, relay is connected with LED stoplight stop lamp, the light emitting diode matrix that LED stoplight stop lamp is wherein nanosecond by response time forms, light emitting diode matrix forms inner ring light-emitting diode, centre circle light-emitting diode and outer ring light-emitting diode, and information collecting device wherein comprises brake pedal position sensor.
Information collecting device also comprises distance measuring sensor, speed sensor and road surface select switch.Brake pedal position sensor in this programme is used for judging that chaufeur is when receiving warning or having recognized that danger, whether takes brake measure and reduces the speed of a motor vehicle.As braked, then warning is suppressed.Brake pedal position sensor directly extracts electric potential signal from car brakeing pilot lamp loop, and after process, the marking signal as car brakeing information sends into central process unit.Speed sensor is in semiconductor Hall devices, when magnetic line of force is through the Hall element be energized, the skew of Hall element electric charge can be caused, cause Hall voltage UH value that respective change occurs in the component, form pulse, Hall element just can output speed signal, neat impulse singla is exported through amplification and rectification circuit, utilize the external counting interface of micro controller system, detect pulse count, just can calculate the kinematic velocity of vehicle.Distance measuring sensor is then utilize to measure to come and go to know distance interpulse period, ranging pulse partitioning method is determining to use clock pulse pad count between time terminal, measure distance according to the lead time between transmitting and receiving, this method can obtain higher measuring accuracy.
Road surface select switch is road surface, manual type three contact select switch.Be used for selected surface friction coefficient, surface friction coefficient changes with the difference of surface conditions.Chaufeur should be selected according to road conditions at that time, thus selects the corresponding switch position.
Described distance measuring sensor, speed sensor and the equal shunt resistance of brake pedal position sensor mouth.
The model of described central process unit is AT89S252.It is a low voltage, high-performance CMOS 8 micro controller systems, sheet includes the Flash read-only program memory of 8k bytes and the random access data storage of 256 bytes, compatibility standard MCS-51 instruction repertoire, powerful, the information that information acquisition unit is collected can process by it, and according to circumstances exports control signal to telltale and alarm circuit.
After this warning device is installed in running automobile, after information collecting device collects the information such as the running state of road conditions and vehicle, convert the plant characteristic collected or state parameter to measurable magnitude, then this signal is processed, be transferred to central process unit after finally the reason causing control system to change after process being converted to electric signal and carry out analysis and treament, complete anticollision prediction and arbitration functions, information is sent to warning circuit time dangerous, realize reporting to the police, remind chaufeur to take the measures such as deceleration, braking, avoid rear-end impact accident to occur.Warning circuit is made up of peripheral circuits such as the additional loud speakers of aerotron, when by analysis, Central Processing Unit (CPU) determines that front exists rear-end impact hidden danger, just produces certain signal and drives loud speaker to give the alarm, remind chaufeur to note taking necessary measure.Because the electrical resistivity of semi-conducting material, mechanical mobility and carrier concentration etc. vary with temperature and affect survey precision, this intensity of variation is different with different semi-conducting material, export for temperature changes on sensor or input the impact of internal resistance, output loop shunt resistance or input circuit series resistance is adopted to compensate, to improve survey precision in the apparatus.
Just this utility model can be realized as mentioned above.
Claims (5)
1. automobile anti-rear-end-collisalarm alarm device, it is characterized in that: comprise central process unit, information collecting device, telltale and warning circuit, described central process unit connects warning circuit, information collecting device and telltale simultaneously, central process unit also connects relay, relay is connected with LED stoplight stop lamp, the light emitting diode matrix that LED stoplight stop lamp is wherein nanosecond by response time forms, light emitting diode matrix forms inner ring light-emitting diode, centre circle light-emitting diode and outer ring light-emitting diode, and information collecting device wherein comprises brake pedal position sensor.
2. automobile anti-rear-end-collisalarm alarm device according to claim 1, is characterized in that: described information collecting device also comprises distance measuring sensor, speed sensor and road surface select switch.
3. automobile anti-rear-end-collisalarm alarm device according to claim 2, is characterized in that: described road surface select switch is road surface, manual type three contact select switch.
4. automobile anti-rear-end-collisalarm alarm device according to claim 2, is characterized in that: described distance measuring sensor, speed sensor and the equal shunt resistance of brake pedal position sensor mouth.
5. automobile anti-rear-end-collisalarm alarm device according to claim 1, is characterized in that: the model of described central process unit is AT89S252.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390817.4U CN204674461U (en) | 2015-06-09 | 2015-06-09 | Automobile anti-rear-end-collisalarm alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390817.4U CN204674461U (en) | 2015-06-09 | 2015-06-09 | Automobile anti-rear-end-collisalarm alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204674461U true CN204674461U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520390817.4U Expired - Fee Related CN204674461U (en) | 2015-06-09 | 2015-06-09 | Automobile anti-rear-end-collisalarm alarm device |
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| CN (1) | CN204674461U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924974A (en) * | 2015-06-09 | 2015-09-23 | 成都衔石科技有限公司 | Mechanism avoiding rear-end collision |
| CN108859956A (en) * | 2018-07-15 | 2018-11-23 | 合肥市智信汽车科技有限公司 | A kind of vehicle bumper systems and method |
-
2015
- 2015-06-09 CN CN201520390817.4U patent/CN204674461U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924974A (en) * | 2015-06-09 | 2015-09-23 | 成都衔石科技有限公司 | Mechanism avoiding rear-end collision |
| CN108859956A (en) * | 2018-07-15 | 2018-11-23 | 合肥市智信汽车科技有限公司 | A kind of vehicle bumper systems and method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160609 |