CN202345672U - Curve over-speed warning auxiliary device - Google Patents
Curve over-speed warning auxiliary device Download PDFInfo
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- CN202345672U CN202345672U CN2011204375963U CN201120437596U CN202345672U CN 202345672 U CN202345672 U CN 202345672U CN 2011204375963 U CN2011204375963 U CN 2011204375963U CN 201120437596 U CN201120437596 U CN 201120437596U CN 202345672 U CN202345672 U CN 202345672U
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- wireless data
- bend
- speed
- auxiliary device
- speed sensor
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Abstract
The utility model discloses a curve over-speed warning auxiliary device, which comprises wireless data transmitting devices installed on two sides of a road, a wireless data receiving device installed in front of an automobile, a vehicle speed sensor and an acceleration sensor, wherein the vehicle speed sensor and the acceleration sensor are installed on the automobile. A single chip microcomputer is further installed in a driving cabin. The vehicle speed sensor, the acceleration sensor and the wireless data receiving device are respectively connected with the single chip microcomputer, and a warning device is further connected onto the single chip microcomputer. The curve over-speed warning auxiliary device can effectively solve the traffic jam problem at the curve position and improve traffic capacity of a road section.
Description
Technical field
The utility model belongs to the auxiliary device in safe driving field, is specifically related to a kind of bend overspeed alarming auxiliary device.
Technical background
Along with the development of society, people's living standard is improving gradually, and car opertion is also more and more.
People are also increasingly high to the requirement of traffic safety and riding comfort.The bend hypervelocity has caused numerous traffic accidents, has caused huge personal casualty.
At present, have a lot of mechanisms that the driver assistance aspect of automobile is studied, many achievements are also arranged, the radius of curvature of some bend is little, when turning, is easy to occurrence of traffic accident.Vehicle owing to the influence of centnifugal force, causes vehicle easily and takes place to break away and cause traffic accident when negotiation of bends when car speed is too high.Generally speaking; Chaufeur can Reduced Speed Now on bend; But can at this moment need send warning at driver tired driving or chaufeur to pass through bend to the not enough words chaufeur of understanding of the anxious slow degree of bend, remind chaufeur to slow down than the higher speed of a motor vehicle to chaufeur.Therefore, bend overspeed alarming auxiliary device through at the multiple bend place of accident wireless data transmission equipment being set, sends the radius of curvature in this highway section to vehicular traffic.After obtaining the radius of curvature of bend; Go out safe negotiation of bends speed in conjunction with various calculation of parameter from car; Whether chaufeur reports to the police to judge from vehicle speed whether be higher than safe negotiation of bends speed according to alarm device; Can reduce the frequency of bend place occurrence of traffic accident like this, also can improve because the discomfort that braking brings to chaufeur.
Summary of the invention
For fear of defective of the prior art or deficiency, the purpose of the utility model is, a kind of bend overspeed alarming auxiliary device is provided.
In order to realize above-mentioned task, the utility model is taked following technical solution:
A kind of bend overspeed alarming auxiliary device; Comprise and be installed on road both sides wireless data transmitting apparatus, be installed in the wireless data reception facilities of vehicle front, and car speed sensor of installing on the automobile and acceleration pick-up; It is characterized in that; A micro controller system also is housed in the driving compartment, and car speed sensor, acceleration pick-up, wireless data reception facilities link to each other with micro controller system respectively, also are connected with warning device on the micro controller system.
Other characteristics of the utility model are:
What described wireless data reception facilities and wireless data transmitting apparatus adopted is the DTD433 wireless data transmission equipment.
The bend overspeed alarming auxiliary device of the utility model; The wireless data reception facilities that utilization is installed in vehicle front receives from being installed on road curvature radius R and the road surface parameter that road both sides wireless data transmitting apparatus is sent; The acceleration/accel of the collection vehicle that acceleration pick-up and speed sensor are real-time and the running velocity of vehicle; Through micro controller system, calculate safe negotiation of bends speed V
Safe, compare with present speed V again, if current vehicle speed V is greater than safety turning speed V from car
SafeThe time, warning device can give the alarm and remind the chaufeur Reduced Speed Now.If current vehicle speed V is less than safety turning speed V
Safe, just can not report to the police, chaufeur needn't slow down, and is directly current.But actv. solves the crowded traffic situation at bend place.Can improve the traffic potential in this highway section.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is an automobile stable state divertical motion sketch.
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to explain.
The specific embodiment
With reference to Fig. 1; Present embodiment provides always safety and turns to auxiliary device, comprises and is installed on road both sides wireless data transmitting apparatus, is installed in the wireless data reception facilities of vehicle front; And car speed sensor of installing on the automobile and acceleration pick-up, and micro controller system and warning device.The wireless data reception facilities is positioned at vehicle front car mark place, and micro controller system and warning device are installed in the driving compartment.
Car speed sensor, acceleration pick-up, wireless data reception facilities link to each other with micro controller system respectively, also are connected with warning device on the micro controller system.
That wireless data reception facilities and wireless data transmitting apparatus adopt is wireless data transmission equipment DTD433.Wireless data transmission equipment DTD433 can provide high stable, highly reliable, data transmission cheaply.It provides transparent RS232/RS485 interface, have convenient for installation and maintenance, diffracting power is strong, networking structure flexibly, characteristics such as covering on a large scale, be suitable for a little many and disperse, application scenario such as geographical environment complicacy.This wireless data transmission equipment is installed at bend place in that accident is multiple; With vehicular traffic point-point type transmission data; Be transferred to the radius of curvature at bend place in the receiving device of vehicular traffic through wireless data transmission equipment; After vehicular traffic collects the radius of curvature at this bend place,, decide warning device whether to report to the police from vehicle speed and safety turning speed through judging according to calculate safe negotiation of bends speed from vehicle speed.
Referring to Fig. 2; When chaufeur is driven when bend also has; At this moment; Wireless data reception facilities (wireless data transmission equipment) on the car receives the signal that the wireless data transmitting apparatus (wireless data transmission equipment) at bend place sends, and obtains the radius of curvature R and the ground-surface parameter of current bend, goes out the maximum negotiation of bends speed in this bend place (obtaining the negotiation of bends speed of corresponding safety divided by safety factor) V according to the various calculation of parameter from car
Max,
The acceleration/accel that acceleration pick-up collects vehicle is a
0, calculate through following computing formula:
F
x＝ma
0 (2)
Wherein, u
MaxBe ground-surface maximum grip coefficient (obtaining) that m is the quality of vehicle, F through wireless transmitting-receiving equipments
x, F
yBe respectively suffered longitudinal force of vehicle and transverse force, V is the sense of motion of vehicle, and O is the center of curvature of bend, and R is the radius of curvature of bend.
Can obtain the computing formula of the max speed by above three equalities:
V
safe＝V
max·δ (5)
Wherein δ is the number less than 1, V
SafeNegotiation of bends speed for safety.
Micro controller system is with the negotiation of bends speed V of current speed V with safety
SafeCompare, if current vehicle speed V is greater than safety negotiation of bends speed V
SafeThe time, the Single-chip Controlling warning device gives the alarm, and reminds chaufeur dangerous through this bend meeting with current speed V, if current vehicle speed V is lower than safe negotiation of bends speed V
SafeThe time, warning device is inoperative, directly can be not dangerous through this bend with current speed V.This moment, chaufeur just knew that go with current vehicle speed V can be not dangerous through bend.Therefore, this bend overspeed alarm device can actv. improves the traffic potential of bend place vehicle, can reduce the bend place because the traffic accident that speed of a motor vehicle height causes.And when night running, this bend overspeed alarm device can obviously improve the traffic of accident-prone road section.
Claims (2)
1. bend overspeed alarming auxiliary device; Comprise being installed on road both sides wireless data transmitting apparatus, be installed in the wireless data reception facilities of vehicle front, and car speed sensor of installing on the automobile and acceleration pick-up; It is characterized in that; A micro controller system also is housed in the driving compartment, and described car speed sensor, acceleration pick-up, wireless data reception facilities link to each other with micro controller system respectively, also are connected with warning device on the micro controller system.
2. bend overspeed alarming auxiliary device as claimed in claim 1 is characterized in that, described wireless data reception facilities and wireless data transmitting apparatus adopt the DTD433 wireless data transmission equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204375963U CN202345672U (en) | 2011-11-08 | 2011-11-08 | Curve over-speed warning auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204375963U CN202345672U (en) | 2011-11-08 | 2011-11-08 | Curve over-speed warning auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202345672U true CN202345672U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204375963U Expired - Fee Related CN202345672U (en) | 2011-11-08 | 2011-11-08 | Curve over-speed warning auxiliary device |
Country Status (1)
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| CN (1) | CN202345672U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104488010A (en) * | 2012-07-21 | 2015-04-01 | 奥迪股份公司 | Method for operating a motor vehicle, in which a user is warned of hazardous situations based on data obtained from outside and inside the vehicle, and motor vehicle operated accordingly |
| CN105539436A (en) * | 2016-01-29 | 2016-05-04 | 深圳市美好幸福生活安全系统有限公司 | Driving safety early warning method and device |
| CN108648461A (en) * | 2018-05-17 | 2018-10-12 | 长安大学 | Bend early warning implementation method based on video frequency speed-measuring |
| CN108961775A (en) * | 2018-07-25 | 2018-12-07 | 合肥市智信汽车科技有限公司 | A kind of automatic alarm system for preventing from hitting before bend vehicle |
| CN111862629A (en) * | 2020-06-18 | 2020-10-30 | 东风汽车集团有限公司 | Method and system for curve overspeed early warning and active speed limiting |
| CN111907414A (en) * | 2019-05-10 | 2020-11-10 | 东莞潜星电子科技有限公司 | Vehicle-mounted steering blind area auxiliary image system |
-
2011
- 2011-11-08 CN CN2011204375963U patent/CN202345672U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104488010A (en) * | 2012-07-21 | 2015-04-01 | 奥迪股份公司 | Method for operating a motor vehicle, in which a user is warned of hazardous situations based on data obtained from outside and inside the vehicle, and motor vehicle operated accordingly |
| CN105539436A (en) * | 2016-01-29 | 2016-05-04 | 深圳市美好幸福生活安全系统有限公司 | Driving safety early warning method and device |
| CN105539436B (en) * | 2016-01-29 | 2018-06-19 | 深圳市美好幸福生活安全系统有限公司 | The method and device of traffic safety early warning |
| CN108648461A (en) * | 2018-05-17 | 2018-10-12 | 长安大学 | Bend early warning implementation method based on video frequency speed-measuring |
| CN108648461B (en) * | 2018-05-17 | 2020-09-04 | 长安大学 | Bend early warning implementation method based on video speed measurement |
| CN108961775A (en) * | 2018-07-25 | 2018-12-07 | 合肥市智信汽车科技有限公司 | A kind of automatic alarm system for preventing from hitting before bend vehicle |
| CN111907414A (en) * | 2019-05-10 | 2020-11-10 | 东莞潜星电子科技有限公司 | Vehicle-mounted steering blind area auxiliary image system |
| CN111862629A (en) * | 2020-06-18 | 2020-10-30 | 东风汽车集团有限公司 | Method and system for curve overspeed early warning and active speed limiting |
| CN111862629B (en) * | 2020-06-18 | 2021-11-23 | 东风汽车集团有限公司 | Method and system for curve overspeed early warning and active speed limiting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121108 |