CN202887458U - Highway vehicle speed guidance system - Google Patents
Highway vehicle speed guidance system Download PDFInfo
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- CN202887458U CN202887458U CN 201220514769 CN201220514769U CN202887458U CN 202887458 U CN202887458 U CN 202887458U CN 201220514769 CN201220514769 CN 201220514769 CN 201220514769 U CN201220514769 U CN 201220514769U CN 202887458 U CN202887458 U CN 202887458U
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Abstract
The utility model relates to a highway vehicle speed guidance system which can provide the highway vehicle driving speed guidance in real time. The highway vehicle speed guidance system is composed of an information acquisition system, an information publishing system and an information processing system. The information acquisition system collects the road parameter, the traffic flow parameter and the meteorological environment parameter. The information processing system processes the above parameters, provides the vehicle speed guidance according to a calculation result, and provides the vehicle speed guidance to a driver via the information publishing system.
Description
One, technical field
The utility model relates to a kind of expressway speed guidance system that express-road vehicle running speed guiding opinion can be provided in real time.
Two, background technology
Highway is the important part of road net, how to realize high speed, safety, economy, comfortable, is the focus of vehicle supervision department always.China's highway is in order to guarantee traffic safety, generally with design speed as design speed, and with it as Maximum speed limit.At special road sections such as bend, ramp, tunnel, bridges, the sign of low speed limit is set in addition also.Various speed(-)limit signs have played vital role to improving traffic safety, have still but sacrificed the advantageous characteristic such as highway " at a high speed ".Therefore, need to a kind ofly traffic safety can either be guaranteed, the system of highway operational efficiency can be improved again.
When auto industry was at the early-stage, Vehicle Speed was low, and the road of specializing in running car is few, did not therefore also have speed(-)limit sign.Development along with auto industry, highway mileage is rapid growth thereupon also, and the raising of vehicle performance, the improvement of road conditions cause vehicle to travel at faster speed on road, so traffic hazard is more and more, thereby cause people's attention, so the road speed(-)limit sign has occurred.Originally speed(-)limit sign only limits the vehicle top speed, and restricted speed is fixed value.
Along with the development of electronic technology and going deep into of traffic flow research, Freeway Variable Speed Signs and variable information board also are widely used, and can change at times maximum speed limit according to road conditions, weather condition.
At present, along with the development of intelligent transport technology and the raising that traffic safety is required, variable speed-limit sign, variable information board can not satisfy the demand of traffic.Therefore, " the expressway speed guidance system " of enough real-time instruction speed of a motor vehicle will become the important component part of freeway infrastructure.
Three, summary of the invention
The technical matters that (1) will solve
The main technical problems to be solved in the utility model is to determine the principle of work of expressway speed guidance system, the constitute and function of each several part.
(2) technical scheme
This system mainly is comprised of information acquisition system, information issuing system and information handling system, information acquisition system is connected by feeder cable with information handling system, information acquisition system passes to information handling system with the transport information that collects by feeder cable, information handling system also is to be connected by feeder cable with information issuing system, and information and instruction that information handling system will be analyzed after judging are transferred to information issuing system by feeder cable.Concrete ingredient sees Table 1.
Table 1 speed of a motor vehicle guidance system structure forms
1. information acquisition system: wagon detector, weather monitoring device and environmental monitor are set at express highway pavement or limit, road.Wagon detector detects the parameters such as the instant speed of a motor vehicle and space headway; The weather monitoring device gathers the parameters such as rainfall amount, snowfall; Environmental monitor gathers the parameters such as visibility, surface temperature, humidity, salinity.
2. information handling system: information handling system is comprised of single-chip microcomputer and interlock circuit, and this single-chip microcomputer is to be integrated on the silicon chip by the central processor CPU random access memory ram with data-handling capacity, read only memory ROM, multiple I/O mouth and the functions such as interrupt system, timer/timer to consist of.The information handling system data of self-information acquisition system of collecting, and analyze, obtain instruction, and send to information issuing system.
3. information issuing system: the overhead traffic sign board is set, the LED screen is set above corresponding track, show Maximum speed limit and the information such as speed of a motor vehicle guiding opinion and traffic safety warning.
(3) beneficial effect
Present domestic highway blocks up very general, and particularly go to the capital high speed and southeastern coast developed area are particularly serious.For example, in 2005 beginning years, the capital is opened Ji, high speed capital intersection and just substantially is in long-term semiparalysis state, blocking up, it is always stifled to west, Zhangjiakou to have a common boundary from Hebei, Beijing when the most serious, reaches more than 130 kilometer, 30,000 on blocking vehicle, nearly 100,000 people of delay personnel, the duration reaches 34 days.And newly-built highway not only expense is high, also to drop into a large amount of human resources, land resource.For example, the average cost of China's highway is about 3,000 ten thousand yuan.
The expressway speed guidance system can the real-time instruction driver travel with the best speed of a motor vehicle, the Effective Raise existing road traffic capacity under the condition that guarantees safety.Experiment and simulation result show that under different sections of highway, Different climate environmental baseline, behind the employing expressway speed guidance system, the highway traffic capacity can improve 4.5-12.4%.
Four, description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is speed of a motor vehicle guidance system structural drawing.
Among the figure: 1. road surface structare layer; 2. wagon detector; 3. freezing monitor; 4. feeder cable; 5. weather monitoring device; 6. visibility monitor; 7. switch board; 8.LED display screen; 9. overhead traffic sign post;
Five, embodiment
The expressway speed guidance system is comprised of information acquisition system, information issuing system and information handling system, and they are linked together by feeder cable (4).
(1) information acquisition system: wagon detector (2) is set at express highway pavement structural sheet (1), at trackside weather monitoring device (5) and environmental monitor are set, environmental monitor comprises the freezing monitor in road surface (3) and visibility monitor (6).
Wagon detector detects instant speed of a motor vehicle v, Vehicle length l and time headway h
tEtc. parameter;
The weather monitoring device gathers rainfall amount Q
1, snowfall Q
2Etc. parameter;
Environmental monitor gathers visibility L1, surface temperature T, humidity
The parameters such as salinity S.
(2) information handling system: information handling system is installed in the switch board (7) of trackside, information handling system is comprised of single-chip microcomputer and interlock circuit, and this single-chip microcomputer is to be integrated on the silicon chip by the central processor CPU random access memory ram with data-handling capacity, read only memory ROM, multiple I/O mouth and the functions such as interrupt system, timer/timer to consist of.
The information handling system data of self-information acquisition system of collecting, and analyze, obtain instruction, and send to information issuing system.
The first step, information handling system reads visibility L from environmental monitor
1
Second step, information handling system reads Vehicle length l from wagon detector (2), judges type of vehicle according to Vehicle length l, such as large car, in-between car, compact car, judges this vehicle Maximum speed limit v according to vehicle and traffic law again
Max
In the 3rd step, information handling system reads temperature T, humidity from wagon detector (2)
The data such as salinity S are according to temperature T, humidity
Salinity S, rainfall amount Q
1, snowfall Q
2Judge pavement behavior etc. data, for example whether freeze, the reference value table 2 that " technical appraisement of typical traffic hazard form Vehicle Speed " (GA/T643-2006) provides according to People's Republic of China's industry standards of public safety is again determined coefficient of road adhesion u, and calculates minimum safe distance L with formula (1)
2
The vertical sliding attachment coefficient u reference value table of table 2 automobile
L
2=vt+v
2/254(u±i)+S
0 (1)
In the formula: L
2---minimal security spacing, m;
V---travel speed, km/h;
T---in driver's consciousness reaction time, get 2.5s;
Vertical coefficient of friction resistance between u---road surface and the tire;
I---road longitudinal grade is installed the highway section actual grade by system and is determined %;
S
0---the parking safe distance, get 5m.
In the 4th step, information handling system is calculated the actual range L in two workshops according to the mistiming ht that speed of a motor vehicle v and two cars cross wagon detector (2)
3, L
3=vh
t
In the 5th step, information handling system generates guiding opinion according to above calculating according to table 3.
Table 3 speed of a motor vehicle guidance system principle of work
Annotate: 1. " " " represents less than more than 15%; 2. " " " represent greater than more than 15%; 3.maxL=max (L
1, L
2);
In the 6th step, information handling system is sent to information issuing system with speed of a motor vehicle guiding opinion.
(3) information issuing system: information issuing system is by overhead traffic sign post (9) being set and LED display (8) mounted thereto forms.LED display (8) is arranged on top, corresponding track, shows the Maximum speed limit and the information such as speed of a motor vehicle guiding opinion and traffic safety warning that are sent by information handling system.
Claims (4)
1. expressway speed guidance system that express-road vehicle running speed guiding opinion can be provided in real time, it is characterized in that: this system is mainly by information acquisition system, information issuing system and information handling system form, information acquisition system is connected by feeder cable with information handling system, information acquisition system passes to information handling system with the transport information that collects by feeder cable, information handling system also is to be connected by feeder cable with information issuing system, and information and instruction that information handling system will be analyzed after judging are transferred to information issuing system by feeder cable.
2. expressway speed guidance system according to claim 1, it is characterized in that: information acquisition system forms by on express highway pavement or limit, road wagon detector, weather monitoring device and environmental monitor being set, and wagon detector detects the instant speed of a motor vehicle and space headway parameter; Weather detector gathers rainfall amount, snowfall parameter; Environmental monitor gathers visibility, surface temperature, humidity, salinity parameter.
3. expressway speed guidance system according to claim 1, it is characterized in that: information handling system is by single-chip microcomputer and the electric circuit constitute, this single-chip microcomputer is to be integrated on the silicon chip by the central processor CPU random access memory ram with data-handling capacity, read only memory ROM, multiple I/O mouth and interrupt system, timer/timer function to consist of, the collect data of self-information acquisition system of information handling system, and analyze, obtain instruction, and send to information issuing system.
4. expressway speed guidance system according to claim 1, it is characterized in that: information issuing system is comprised of overhead traffic sign post and the LED display that top, corresponding track on it is set, and information issuing system shows Maximum speed limit and speed of a motor vehicle guiding opinion and traffic safety warning information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220514769 CN202887458U (en) | 2012-10-09 | 2012-10-09 | Highway vehicle speed guidance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220514769 CN202887458U (en) | 2012-10-09 | 2012-10-09 | Highway vehicle speed guidance system |
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|---|---|
| CN202887458U true CN202887458U (en) | 2013-04-17 |
Family
ID=48078862
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220514769 Expired - Fee Related CN202887458U (en) | 2012-10-09 | 2012-10-09 | Highway vehicle speed guidance system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413448A (en) * | 2013-06-25 | 2013-11-27 | 同济大学 | Truck intelligent prewarning system for mountainous expressway continuous long and large longitudinal slope section |
| CN104590104A (en) * | 2014-12-31 | 2015-05-06 | 上海小糸车灯有限公司 | Method for displaying static warning optical signal at rear part of automobile |
| CN106781505A (en) * | 2015-04-24 | 2017-05-31 | 王栋 | A kind of data processing method of mountainous area highway actual road test GES detecting system |
| CN115331480A (en) * | 2021-05-10 | 2022-11-11 | 北京万集科技股份有限公司 | Vehicle early warning method and device and computing equipment |
-
2012
- 2012-10-09 CN CN 201220514769 patent/CN202887458U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413448A (en) * | 2013-06-25 | 2013-11-27 | 同济大学 | Truck intelligent prewarning system for mountainous expressway continuous long and large longitudinal slope section |
| CN103413448B (en) * | 2013-06-25 | 2016-04-20 | 同济大学 | A kind of mountainous area highway continuous Large Longitudinal Slope section lorry intelligent early-warning system |
| CN104590104A (en) * | 2014-12-31 | 2015-05-06 | 上海小糸车灯有限公司 | Method for displaying static warning optical signal at rear part of automobile |
| CN106781505A (en) * | 2015-04-24 | 2017-05-31 | 王栋 | A kind of data processing method of mountainous area highway actual road test GES detecting system |
| CN106781505B (en) * | 2015-04-24 | 2020-08-14 | 西安航空学院 | Data processing method of mountain area highway road test vehicle speed signal detection system |
| CN115331480A (en) * | 2021-05-10 | 2022-11-11 | 北京万集科技股份有限公司 | Vehicle early warning method and device and computing equipment |
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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: 20130417 Termination date: 20131009 |