CN205810123U - Based on the road traffic accident detection early warning system that bus or train route is collaborative - Google Patents
Based on the road traffic accident detection early warning system that bus or train route is collaborative Download PDFInfo
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- CN205810123U CN205810123U CN201620744431.3U CN201620744431U CN205810123U CN 205810123 U CN205810123 U CN 205810123U CN 201620744431 U CN201620744431 U CN 201620744431U CN 205810123 U CN205810123 U CN 205810123U
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- early warning
- traffic
- roadside unit
- communication
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Abstract
The utility model discloses a kind of road traffic accident detection early warning system collaborative based on bus or train route, including the board units being connected with vehicle ECU communication, the GPS module being connected with described board units communication, multiple trackside roadside units can being connected with described board units communication of being spaced apart and arranged in, and the earth magnetism traffic detector being arranged in correspondence with roadside unit.By the board units of vehicle, roadside unit, earth magnetism traffic detector are used in combination, both Macro-traffic Flow parameter can have been obtained, also can obtain the operation information of individual vehicle, enrich the information source of traffic incidents detection, improve reliability and the accuracy of traffic incidents detection；It addition, based on the section of accumulation region, rationally determine the position that early warning information is issued, be conducive to improving the effect of traffic prewarning, and then alleviate traffic congestion.
Description
Technical field
This utility model relates to technical field of intelligent traffic, particularly relates to a kind of road traffic thing collaborative based on bus or train route
Part detection early warning system.
Background technology
In City ITS, the equipment such as fixed coil, earth magnetism traffic detector is widely used in traffic parameter
Collection and the detection of traffic events.Chinese patent literature CN104103171A discloses a kind of double sections traffic incidents detection side
Method, the method is chosen two cross sections of road, is obtained the traffic parameter in two cross sections, obtains clock drift rate, obtains data and repaiies
Complex coefficient, and then improve the Detection results of double sections Algorithm for Traffic Incidents Detection.
In recent years, bus or train route coordination technique quickly grows, and (On Board Unit is called for short the board units being installed on vehicle
And be laid in the roadside unit (Road Side Unit, be called for short RSU) of trackside, just by progressively for speed monitoring, road OBU)
The fields such as burst accident prompting early warning.Chinese patent literature CN104064048A discloses a kind of based on board units and trackside list
The automobile curve motion optimum speed processing method of unit, the method utilizes road curve corner, radius, vehicle's center of gravity height etc.,
Calculate vehicle optimum operation speed, and feed back to board units by roadside unit.Chinese patent literature
CN104537852A discloses a kind of road burst accident reminding method based on board units and roadside unit, the method according to
The speed limit situation of road and the brake frequency threshold value of vehicle, it is judged that the emergency case of road traffic accident, and pointed out.
Owing to the equipment such as fixed coil, earth magnetism traffic detector can only collect Macro-traffic Flow parameter, and cannot obtain
The operation information of individual vehicle；It addition, the operation information of individual vehicle can be uploaded to roadside unit by board units, but
Part Macro-traffic Flow parameter is difficult to obtain.Therefore, single fixed coil, earth magnetism traffic detector, or single car
Carrier unit, roadside unit, all face the problem that transport information is complete, traffic information collection is easily affected by extraneous factor, and this is unfavorable
In the ruuning situation of comprehensively reflection traffic flow and the detection of traffic events and early warning.
Utility model content
The purpose of this utility model is for technological deficiency present in prior art, and provides a kind of and work in coordination with based on bus or train route
Road traffic accident detection early warning system.
Be the technical scheme is that by realizing the purpose of this utility model
A kind of road traffic accident detection early warning system collaborative based on bus or train route, including the car being connected with vehicle ECU communication
Carrier unit, the GPS module being connected with described board units communication, multiple tracksides can be vehicle-mounted with described of being spaced apart and arranged in
The roadside unit that unit communications connects, and the earth magnetism traffic detector being arranged in correspondence with roadside unit.
Described roadside unit is arranged at Lane Narrows, imports and exports ramp location, viaduct upward slope middle position or friendship
The logical Chang Fachu that blocks up, on the track at described roadside unit upstream, each preset distance in downstream, correspondence lays earth magnetism friendship respectively
Logical detector.
Described board units is connected by CAN module communication with described vehicle ECU.
It is respectively mounted earth magnetism traffic detector at described roadside unit upstream, 100 meters of downstream.
Also include being arranged at Lane Narrows, to import and export ramp location, viaduct upward slope middle position or traffic congestion normal
At Faing, anterior early warning mechanism is imported and exported in upstream trackside or upstream.
Described early warning mechanism is the direction board being connected with described roadside unit communication or can be with the early warning of vehicle communication
Roadside unit.
Compared with prior art, the beneficial effects of the utility model are:
By the board units of vehicle, roadside unit, earth magnetism traffic detector are used in combination, macro-traffic both can be obtained
Stream parameter, it is possible to obtain the operation information of individual vehicle, enrich the information source of traffic incidents detection, improve traffic events
The reliability of detection and accuracy；It addition, based on the section of accumulation region, rationally determine the position that early warning information is issued, favorably
In the effect of raising traffic prewarning, and then alleviate traffic congestion.
Accompanying drawing explanation
Fig. 1 is the Expressway Traffic event detection collaborative based on bus or train route and method for early warning flow chart.
Fig. 2 is Vehicle Detection equipment and source of early warning placement position schematic diagram.
Fig. 3 is board units and the mutual schematic diagram of roadside unit.
Fig. 4 is system pie graph.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.Should be appreciated that this place
The specific embodiment described, only in order to explain this utility model, is not used to limit this utility model.
As Figure 1-4, the detection early warning system in order to realize road traffic accident detection method for early warning of the present utility model
System, including the board units being connected with vehicle ECU communication, multiple tracksides can with described board units of being spaced apart and arranged in
The roadside unit of communication, and the earth magnetism traffic detector being arranged in correspondence with roadside unit.Described roadside unit is arranged on
At Lane Narrows, import and export ramp location, viaduct upward slope middle position or traffic congestion often send out place, at described roadside unit
On track at upstream, each preset distance in downstream, correspondence lays earth magnetism traffic detector respectively.Described board units is with described
Vehicle ECU connected by CAN module communication, vehicle end also includes the car being connected with described board units communication simultaneously
Carrier unit, described board units is kept in communication with communication module, specifically, for realizing the communication of roadside unit and vehicle,
As it is shown on figure 3, board units obtains speed and the GPS position information of vehicle by vehicle CAN bus module, GPS module, pass through
Communication module utilizes special short range communication technology, and speed and GPS position information are sent to the Read-write Catrol module of roadside unit；
When wanting traffic prewarning, the Read-write Catrol module of roadside unit, utilize special short range communication technology by traffic by communication module
Early warning information is sent to board units, for driver's reference.
This utility model utilizes the communication of roadside unit and vehicle, it is achieved that travel speed and the collection of GPS information, passes through
Spaced multiple roadside unit, it is achieved that all standing of road, especially through street or highway or Partial key
The all standing in region, it is simple to information gathering and early warning information are issued, and combine the employing of earth magnetism traffic detector, in conjunction with average
Road traffic accident is judged by speed and average roadway occupancy, it is determined that precisely.
As one of them specific embodiment, first, the traffic congestion often place of sending out assert in vehicle supervision department installs many
Individual roadside unit, then, a core wherein, at 100 meters, the roadside unit upstream at middle part, 2 earth magnetism traffic inspections are installed
Survey device 3,4, at 100 meters of roadside unit downstream, 2 earth magnetism traffic detector 1,2 are installed.Wherein, earth magnetism traffic detector 1,3
Being arranged on a track, earth magnetism traffic detector 2,4 is arranged on a track.
Vehicle runs on road, board units pass through vehicle CAN bus module, GPS module, it is thus achieved that the speed of vehicle and
GPS position information, by communication module, utilizes special short range communication technology, speed of operation and GPS position information is sent to road
Side unit；Earth magnetism traffic detector gathers lane occupancy ratio, speed information, and this most reinflated at this retouches similarly to the prior art
State.
The time of hypothesis is 7:00-8:00 morning peak, and the traffic information collection cycle is 10 minutes, in this traffic information collection
In cycle, total m car is through roadside unit, and speed of operation and GPS position information are issued roadside unit, and roadside unit is adopted
Collect to speed of operation be designated as: v1,RSU, v2,RSU..., vm,RSU, the average speed that earth magnetism traffic detector 1,2,3,4 gathers is remembered
For: v1,DC, v2,DC, v3,DC, v4,DC, the average occupancy that earth magnetism traffic detector 1,2,3,4 gathers is designated as: Occupancy1,DC,
Occupancy2,DC, Occupancy3,DC, Occupancy4,DC.Then average speed is designated as: ((v1,DC+v2,DC+v3,DC+v4,DC)/4+
(v1,RSU+v2,RSU+...+vm,RSU)/m)÷2；Average occupancy is designated as (Occupancy1,DC+Occupancy2,DC+
Occupancy3,DC+Occupancy4,DC)/4.Assuming within the traffic information collection cycle of 10 minutes, the average speed of calculating is
18km/h, average occupancy is 35%.
Owing to average occupancy is more than or equal to 30%, and average speed is less than 15-22km/h, such as 20km/h, it is judged that have
Traffic events occurs.Find out the minimum traveling vehicle speed value that the roadside unit in the traffic information collection cycle detects, be designated as
min{v1,RSU,v2,RSU,...,vm,RSU, if this value is less than or equal to 10km/h, then this minimum vehicle speed value is defined as 10km/h；
If min{v1,RSU,v2,RSU,...,vm,RSUMore than 10km/h, then minimum speed is determined by actual value.Then, at dolly
8-12km/h is added, such as 8km/h, using this value as dissipating/gather critical velocity on the basis of speed value.Assume min{v1,RSU,
v2,RSU,...,vm,RSUValue is 13km/h, then the critical velocity that dissipates/gather is defined as 21km/h.
Based on the vehicle speed data that other roadside units spreading over road side detect, analyze roadside unit downstream
Speed of operation data, find out that this is specific nearest from roadside unit, and the vehicle that speed of operation is more than or equal to 21km/h, determine this
The GPS position information of vehicle, is defined as the cross section place in dissipation district, A1 as shown in Figure 2 by the section at this car place；With road
Based on the speed of operation data that side unit detects, analyze the speed of operation data of roadside unit upstream, find out from trackside list
Unit is nearest, and the vehicle that speed of operation is more than or equal to 21km/h, determines the GPS position information of this vehicle, breaking this car place
Face is defined as the cross section place of accumulation region, A2 as shown in Figure 2.The region of A1 to A2 is referred to as the traffic events zone of influence.
Then early warning information releasing position is determined according to the traffic events zone of influence, at the cross section place upstream 150-of accumulation region
At 200 meters, traffic prewarning information releasing position S1 is set, as in figure 2 it is shown, carry out early warning in this place, can effectively remind driver to drop
Low speed, prevents secondary accident from occurring, and the mode of early warning can be to carry out broadcast etc. by the roadside unit at this；Simultaneously as long-pending
In the range of the cross section place upstream 500-800 rice in poly-district, i.e. there is any discrepancy mouth ring road, then this prompting early warning position is arranged on gateway
At the 150-200 rice of ring road upstream, position S2 as shown in Figure 2, early warning information issues form can use broadcast, vehicle-mounted short message
Or notice board etc..I.e. to identical with this wagon flow direction, side in traffic prewarning information releasing position S1 and S2 upstream and traffic direction
Vehicle, carry out traffic prewarning.
This utility model is used in combination board units, roadside unit, earth magnetism traffic detector, with average speed and averagely accounts for
Having rate is index, it is determined that whether traffic events occurs；Calculate/accumulation the critical velocity that dissipates, determine dissipation district, section position, accumulation region
Put, lay traffic prewarning equipment at accumulation region upstream position, vehicle is carried out early warning.
The above is only preferred implementation of the present utility model, it is noted that general for the art
For logical technical staff, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these change
Enter and retouch and also should be regarded as protection domain of the present utility model.
Claims (6)
1. one kind is detected early warning system based on the road traffic accident that bus or train route is collaborative, it is characterised in that include and vehicle ECU communication
The board units connected, the GPS module being connected with described board units communication, multiple tracksides can be with institute of being spaced apart and arranged in
The roadside unit that the board units communication stated connects, and the earth magnetism traffic detector being arranged in correspondence with roadside unit.
2. road traffic accident detection early warning system as claimed in claim 1, it is characterised in that described roadside unit is arranged
At Lane Narrows, import and export ramp location, viaduct upward slope middle position or traffic congestion often send out place, at described trackside list
On track at unit upstream, each preset distance in downstream, correspondence lays earth magnetism traffic detector respectively.
3. road traffic accident detection early warning system as claimed in claim 1, it is characterised in that described board units and institute
The vehicle ECU stated is connected by CAN module communication.
4. road traffic accident detection early warning system as claimed in claim 2, it is characterised in that on described roadside unit
It is respectively mounted earth magnetism traffic detector at trip, 100 meters of downstream.
5. road traffic accident detection early warning system as claimed in claim 2, it is characterised in that also include that being arranged on track becomes
Narrow place, import and export ramp location, viaduct upward slope middle position or traffic congestion often send out place's upstream trackside or upstream is imported and exported
Anterior early warning mechanism.
6. road traffic accident detection early warning system as claimed in claim 5, it is characterised in that described early warning mechanism be with
Direction board that described roadside unit communication connects or can be with the early warning roadside unit of vehicle communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620744431.3U CN205810123U (en) | 2016-07-14 | 2016-07-14 | Based on the road traffic accident detection early warning system that bus or train route is collaborative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620744431.3U CN205810123U (en) | 2016-07-14 | 2016-07-14 | Based on the road traffic accident detection early warning system that bus or train route is collaborative |
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| CN205810123U true CN205810123U (en) | 2016-12-14 |
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| CN201620744431.3U Expired - Fee Related CN205810123U (en) | 2016-07-14 | 2016-07-14 | Based on the road traffic accident detection early warning system that bus or train route is collaborative |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180533A (en) * | 2017-06-22 | 2017-09-19 | 北京中交华安科技有限公司 | Road method for early warning and device |
| CN108039053A (en) * | 2017-11-29 | 2018-05-15 | 南京锦和佳鑫信息科技有限公司 | A kind of intelligent network joins traffic system |
| CN108230615A (en) * | 2018-01-18 | 2018-06-29 | 同济大学 | A kind of bus or train route collaboration early warning system and method based on culvert water level safety |
| CN108961799A (en) * | 2018-07-24 | 2018-12-07 | 佛山市高明曦逻科技有限公司 | Driving information road auxiliary system |
| CN111681439A (en) * | 2020-06-01 | 2020-09-18 | 北京聚利科技有限公司 | Vehicle-mounted equipment, roadside equipment, road early warning method and system |
-
2016
- 2016-07-14 CN CN201620744431.3U patent/CN205810123U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180533A (en) * | 2017-06-22 | 2017-09-19 | 北京中交华安科技有限公司 | Road method for early warning and device |
| CN108039053A (en) * | 2017-11-29 | 2018-05-15 | 南京锦和佳鑫信息科技有限公司 | A kind of intelligent network joins traffic system |
| CN108230615A (en) * | 2018-01-18 | 2018-06-29 | 同济大学 | A kind of bus or train route collaboration early warning system and method based on culvert water level safety |
| CN108230615B (en) * | 2018-01-18 | 2021-03-26 | 同济大学 | Vehicle-road cooperative early warning system and method based on culvert water level safety |
| CN108961799A (en) * | 2018-07-24 | 2018-12-07 | 佛山市高明曦逻科技有限公司 | Driving information road auxiliary system |
| CN111681439A (en) * | 2020-06-01 | 2020-09-18 | 北京聚利科技有限公司 | Vehicle-mounted equipment, roadside equipment, road early warning method and system |
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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 |
Granted publication date: 20161214 Termination date: 20170714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |