CN207517194U - Highway operating speed active forewarning system based on bus or train route collaboration - Google Patents
Highway operating speed active forewarning system based on bus or train route collaboration Download PDFInfo
- Publication number
- CN207517194U CN207517194U CN201721371687.5U CN201721371687U CN207517194U CN 207517194 U CN207517194 U CN 207517194U CN 201721371687 U CN201721371687 U CN 201721371687U CN 207517194 U CN207517194 U CN 207517194U
- Authority
- CN
- China
- Prior art keywords
- speed
- roadside unit
- operating speed
- highway
- bus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of highway operating speed active forewarning systems based on bus or train route collaboration, weather monitoring device including the roadside unit to acquire telecommunication flow information and to acquire weather information, the weather monitoring device includes visibility detector, type rain-snow gauge and to the communication module with the roadside unit communication link, and the roadside unit with the board units of vehicle communicating.By using visibility detector, type rain-snow gauge, roadside unit and board units, the operation information of Weather information, real-time telecommunication flow information and individual vehicle can be obtained, realization divides weather, pavement branch sections dynamic optimization operating speed, the speed difference of highway adjacent segments is reduced, improves traffic efficiency；To tunnel exit, bend, accident-prone road section, operating speed early warning is carried out, it is horizontal to improve traffic safety.
Description
Technical field
This technology utility model belongs to intelligent transportation field, specially using board units, roadside unit and weather monitoring
Device divides weather, pavement branch sections/node dynamic optimization operating speed, and so as to improve traffic efficiency, it is horizontal to improve traffic safety.
Background technology
In recent years, China's highway operation mileage and magnitude of traffic flow sustainable growth, the traffic surveillance and control system of highway
It builds and management achieves the Vehicle Detections equipment such as significant progress, a large amount of detection coil, video, bayonet and has been used for public affairs at a high speed
The traffic safety early warning on road and emergency.However, current traffic monitoring pattern depends on the Traffic flow detecting of macroscopic view,
Deficiency is grasped, therefore the specific aim of traffic prewarning and promptness are to be improved to the operation information of individual vehicle.In bad weather
Under the conditions of (such as mist, rain, snow), traffic accidents take place frequently, and partly cause includes：Driver is unfamiliar with road conditions, Yi Chao
Speed traveling；After traffic accident occurs, alarm not in time, causes subsequent vehicle that can not grasp front road conditions and traffic prewarning in time
Information, and then cause even more serious secondary traffic accident.Therefore, early warning is carried out to highway operating speed, had very
Important realistic meaning.
At present, China's highway is mainly using static operating speed guidance mode, although part highway using
The dynamic operating speed guidance modes of pavement branch sections, basis are the variations point by Macro-traffic Flow (flow, density, speed)
Analysis；However, under low flow condition (such as night, sparse road), the variation of Macro-traffic Flow is not notable, leads to traffic prewarning quilt
It is dynamic, not in time, emergency processing lag.Recent years, bus or train route coordination technique is worldwide in the ascendant, is cooperateed with by bus or train route
Technology obtains the operation information (such as real-time vehicle running position, speed, acceleration-deceleration, Parking situation) of individual vehicle, has
Conducive to the precision for improving traffic information, in addition, by bus or train route cooperation interaction technology, traffic prewarning is carried out to individual vehicle, can be shown
Write the specific aim and promptness for improving traffic prewarning.
Chinese patent literature CN201210379451.1 discloses a kind of expressway speed and instructs system, which passes through
Wagon detector detects the parameters such as instant speed and space headway, with reference to meteorological and environmental parameter, according to minimum safe between vehicle
Spacing provides vehicle acceleration and deceleration suggestion, and the LED display publication above track.Chinese patent literature
CN201410234707.9 discloses a kind of highway main line vehicle speed control system, which is handed over using video detector
Through-current capacity detect, by customized fuzzy rule, traffic guidance control system optimization provide each divided lane dynamic speed limit or
The operating instruction in track is closed, is exported to each divided lane LED variable speed-limit signs.Chinese patent literature CN201210427353.0
Highway variable speed-limit control system and control method under a kind of rainy day environment are disclosed, this method uses Data mining
Device acquires the magnitude of traffic flow, with reference to real-time rainfall, determines bottleneck section, according to the density and length velocity relation of the magnitude of traffic flow,
Section speed limit is provided, and is shown in variable speed-limit board.
The above method mainly by the analysis of highway Macro-traffic Flow, carries out the speed guiding of macroscopical wagon flow, due to
Lack the operation information of individual vehicle, can not realize the operating speed early warning to individual vehicle.Chinese patent literature
CN201610643513.3 discloses expressway safety speed guiding system under a kind of foggy environment towards intelligent network connection automobile
System and method, this method utilize the real-time running state information that each car on section is obtained using roadside unit and board units
And visibility information, calculating analyze best speed, are distributed to driver's reference.This method only considers greasy weather factor, triggering
Condition is single, and does not consider other bad weathers (such as snow, rainfall), and the applicability of speed guiding is limited；In addition, this method is neglected
The vehicle speed prewarning that individual vehicle is run in hazardous road node (tunnel exit, bend, accident-prone road section) is omited.
Technical application new content
This technology utility model aims to overcome that above-mentioned deficiency, provides a kind of highway fortune cooperateed with based on bus or train route
The fast active forewarning system and method for driving, this method are right using visibility detector, type rain-snow gauge, roadside unit, board units
Different bad weathers are classified, and for each individual vehicle, realize the vehicle of different sections of highway/node under the conditions of different weather
Speed guiding.
This technology utility model is as follows：
A kind of highway operating speed active forewarning system based on bus or train route collaboration, including acquiring telecommunication flow information
Roadside unit and weather monitoring device to acquire weather information, the weather monitoring device include visibility detector, rain
Snow weighing gauge and to the communication module with the roadside unit communication link, the roadside unit is to vehicle-mounted with vehicle
Unit communications.
The roadside unit includes communication module and data processing module, is arranged on highway main line entrance
At downstream 500-1000 meters, at 200-300 meters of tunnel exit downstream, the centre of bend centre position and accident-prone road section
Position.
It is communicated between board units and roadside unit using special short range communication DSRC technology, roadside unit and weather monitoring
Using 3G or 4G network communications between device, visibility detector is mounted on Foggy Area, and type rain-snow gauge is mounted on highway edge
Line.
The variable-ratio direction board with the roadside unit communication link is further included, the variable-ratio direction board includes
LED display and warning lamp.
A kind of control method of the highway operating speed active forewarning system based on bus or train route collaboration, feature
It is, includes the following steps,
1) weather monitoring device acquires weather information and carries out classification classification respectively to meteorology, and the weather information includes drop
Rainfall, snowfall and visibility；Wherein, multiple Meteorological Grades, each Meteorological Grade pair will be respectively divided into per class weather information
Speed meteorological accordingly should be limited, it is smaller that the more high corresponding meteorology of Meteorological Grade limits speed；
2) meteorological restriction speed is determined according to meteorological condition, in the presence of multiple meteorological conditions, according to the gas of highest level
As condition determines meteorological restriction speed；
3) speed setting suggestion speed is limited according to meteorology and directly notifies board units.
Meteorology is limited into speed and smooth speed comparison step in the step 3), takes smaller value to suggest speed and leading to
Know board units, wherein, the practical operating speed in this section is acquired within the period, when this this period of section expert's vehicle speed
When being more than or equal to difference threshold with the absolute value of upstream or the operating speed difference of downstream road section, then according to upstream or downstream road section
Operating speed calculate smooth speed in next period, it is exhausted when this section and the operating speed difference of upstream or downstream road section
Difference threshold is less than to value, then smooth speed is equal to operating speed.
The computational methods of the smooth speed are,Its
Middle V (xi-1, t) be upstream section operating speed, V (xi+1, t) be downstream road section operating speed,For weight coefficient, instantly
When swimming non-intersection speed more than or equal to upstream non-intersection speed,Value range is 0.6-1.0, when downstream non-intersection speed is less than upstream road
During section speed,Value range is 0-0.4.
When at least two weather informations are respectively positioned on highest Meteorological Grade, after performing highest Meteorological Grade upgrading level-one
Meteorology limits speed.
The corresponding weather information of bad weather is divided into 1,2,3 and 4 four grade, the corresponding meteorological limit of different brackets weather
Determine speed to be respectively 80km/h, 60km/h, 40km/h and 20km/h and sail out of highway.
For main line section, extract section head end, 85% speed that end roadside unit acquires, then average,
Operating speed as section；For tunnel exit, bend, accident-prone road section, 85% speed that roadside unit is acquired
As operating speed, in a detection cycle, operating speed is if it is larger than or equal to 85% speed of setting, then upward tourist bus
Send out the early warning of " front driving is too fast, please drive with caution "；In a detection cycle, when the roadside unit in these places is examined
The vehicle of 2 or more is measured, maximum braking deceleration is more than or equal to 7.0 meter per seconds2, and the down time of vehicle is more than or equal to 2 points
Clock is then determined with traffic accident, and upstream vehicle sends out the early warning of " danger ahead, please slow down driving ".
The effect of this technology utility model is：
By using visibility detector, type rain-snow gauge, roadside unit and board units, Weather information, in real time can be obtained
Telecommunication flow information and individual vehicle operation information, realization divides weather, pavement branch sections dynamic optimization operating speed, reduces public at a high speed
The speed difference of road adjacent segments improves traffic efficiency；To tunnel exit, bend, accident-prone road section, it is pre- to carry out operating speed
It is alert, it is horizontal to improve traffic safety.
Description of the drawings
Fig. 1 is express highway section device layout schematic diagram.
Fig. 2 is tunnel exit device layout schematic diagram.
Fig. 3 is system pie graph.
Fig. 4 is section operating speed boot flow figure.
Fig. 5 is tunnel exit, bend, accident-prone road section vehicle speed prewarning flow chart.
Fig. 6 is the interaction schematic diagram of roadside unit and board units.
Specific embodiment
The utility model is described further with reference to specific example and attached drawing.
The utility model discloses it is a kind of based on bus or train route collaboration highway operating speed active forewarning system, including with
With the roadside unit for acquiring telecommunication flow information and the weather monitoring device to acquire weather information, the weather monitoring device includes
Visibility detector, type rain-snow gauge and to the communication module with the roadside unit communication link, the roadside unit
To be communicated with the board units of vehicle.
The highway operating speed active forewarning system of the utility model collects Weather information, real-time traffic flow
The operation information of information and individual vehicle, is analyzed, and is obtained the meteorological of express highway section and is limited speed, and tunnel is gone out
The operation vehicle progress early warning of mouth, bend, accident-prone road section, operating speed recommended value and warning information are sent to vehicle-mounted list
Member is referred to for vehicle operator.
Wherein, the highway operating speed active forewarning system based on bus or train route collaboration of the utility model passes through channel radio
The interaction into row information is interrogated, wherein, roadside unit is interacted with board units by special short range communication DSRC technology, meteorological
Monitor is interacted with roadside unit by 3G or 4G technologies.Weather monitoring device is made of visibility detector, type rain-snow gauge,
The detection of visibility, rainfall, snowfall can be carried out.Traffic information acquisition system is made of roadside unit, board units, vehicle
The speed of board units collection vehicle, braking deceleration, parking duration, vehicle location, and pass through wireless communication module, send out
Roadside unit is given, flow, speed, vehicle braking deceleration, the vehicle parking duration of section thus roadside unit acquires where
Index.
Specifically, at highway main line entrance upstream and downstream 500-1000 rice, 200-300 meters of tunnel exit downstream
Roadside unit is installed in the centre position of place, bend centre position and accident-prone road section；In highway main line section
Centre position, installation visibility detector, type rain-snow gauge, the device layout of section and tunnel exit is as shown in the figure；Visibility is examined
Survey instrument detection visibility index, type rain-snow gauge detection rainfall intensity, snowfall figureofmerit；The board units of vehicle, collection vehicle
Speed, braking deceleration, parking duration, vehicle location, and pass through wireless communication module, it is sent to the communication mould of roadside unit
Block, the long pointer when flow of section, speed, vehicle braking deceleration, vehicle parking thus roadside unit acquires where.
The data processing module of roadside unit is responsible for calculating the operating speed of section/node.For main line section, road is extracted
Duan Shouduan, 85% speed of end roadside unit acquisition, then average, the operating speed as section；For tunnel
Outlet, bend, accident-prone road section, using 85% speed of roadside unit acquisition as operating speed.
Wherein, visibility detector acquisition visibility information, type rain-snow gauge acquisition rainfall, snowfall information, and will be severe
Weather is divided into 1,2,3,4 four grade, different brackets weather it is corresponding it is meteorological limit speed be respectively 80km/h, 60km/h,
40km/h, 20km/h simultaneously sail out of highway；When visibility, rainfall, snowfall figureofmerit, there are two meet a certain early warning simultaneously
Grade, then operating speed warning grade promoted level-one；Speed operation warning information is prompted by board units.When there is no
During bad weather, it is normal express highway section speed limit which, which limits speed,.As straight section speed limit is generally
120km/h, curve section speed limit 80-100km/h, tunnel speed limit 60-80km/h, which, which limits speed, can directly pass through trackside
The communication module of unit is sent to board units, while above-mentioned each speed limit can also be carried directly by the speed limit installed on road roadside
Show board, such as variable-ratio direction board, the variable-ratio direction board includes LED display and warning lamp.Pass through number and intuitive face
Color carries out speed warning and informs.
Sister-in-law is controlled to improve whole speed, after meteorology restriction speed is sent to roadside unit, is sent after treatment
To board units, such as with smooth speed relatively after, get the small value and be sent to board units.
Specifically, when the absolute value of this section and upstream or the operating speed difference of downstream road section is less than difference threshold,
Then it is considered as the section to operate steadily, smooth speed is operating speed, when this section and upstream or the operating speed of downstream road section
The absolute value of difference is more than or equal to difference threshold, during such as 20km/h, the speed difference between smooth section, and data processing module meter
Calculate the smooth speed in this section lower period：Wherein V (xi-1,
T) it is the operating speed in upstream section, V (xi+1, t) be downstream road section operating speed,For weight coefficient, when downstream road section vehicle
When speed is more than or equal to upstream non-intersection speed,Value range is 0.6-1.0, when downstream non-intersection speed is less than upstream non-intersection speed,Value range is 0-0.4.When next period starts, meteorology is limited speed by data processing module by wireless communication module
Roadside unit is issued with the smaller value in transverse sliding vehicle speed, roadside unit issues board units, for vehicle by wireless communication module
Driver refers to, and realizes the operating speed guiding to vehicle, and section operating speed boot flow is as shown in Figure 4.
Meanwhile operating speed early warning of the system of the utility model also to tunnel exit, bend, accident-prone road section.
In one detection cycle, 85% speed that the roadside unit in these places detects, if it is larger than or equal to the speed limit of setting,
Roadside unit is sent to the board units of upstream vehicle by wireless communication module, sends out that " front driving is too fast, please drives with caution
Sail " early warning；In a detection cycle, when the roadside unit in these places detects the vehicle of 2 or more, maximum braking subtracts
Speed is more than or equal to 7.0 meter per seconds2, and the down time of vehicle be more than or equal to 2 minutes, then be determined with traffic accident, trackside
Unit is sent to the board units of upstream vehicle by wireless communication module, and upstream vehicle sends out that " danger ahead please subtract
The early warning of speed driving ".Tunnel exit, bend, accident-prone road section vehicle speed prewarning flow are as shown in Figure 5.
It is further elaborated below by specific embodiment.
The first step, the data processing module of roadside unit are responsible for calculating the operating speed of section/node.For main line
Section, 85% speed that extraction section head end, end roadside unit acquire, then averages, the operating speed as section.
For example 85% speed of the roadside unit acquisition of certain section head end is 100km/h, 85% of the roadside unit acquisition of end
Speed is 90km/h, then the operating speed in the section is 95km/h；For tunnel exit, bend, accident-prone road section, by trackside
85% speed of unit acquisition is as operating speed, for example 85% speed is 80km/h.
Second step, boisterous classification and early warning.According to visibility, rainfall and snowfall information, by bad weather
Be divided into 1,2,3,4 four grade, different brackets weather it is corresponding it is meteorological limit speed be respectively 80km/h, 60km/h, 40km/h,
20km/h simultaneously sails out of highway.Boisterous classification is as shown in the table with early warning situation.
When visibility, rainfall, snowfall figureofmerit there are two simultaneously meet a certain warning grade, then operating speed early warning etc.
Grade promotes level-one.For example, the visibility 200m in certain section<L≤500m is 300m or so, same to have slight snow at present, then warning grade
Promoted from 1 grade to 2 grades, it is corresponding meteorological to limit speed suggestion and be reduced to≤60km/h from≤80km/h, such as it is meteorological limit speed as
60km/h。
Third walks, and under the premise of meteorological restriction speed is provided, for balanced each section wagon flow, calculates the transverse sliding vehicle in section
Speed.When the absolute value of this section and upstream or the operating speed difference of downstream road section is more than or equal to difference threshold, during such as 20km/h,
For the speed difference between smooth section, data processing module calculates the smooth speed in this section lower period：
Wherein V (xi-1, t) be upstream section operation vehicle
Speed, V (xi+1, t) be downstream road section operating speed,For weight coefficient.Assuming that the operating speed in this section is 55km/h, on
The operating speed of trip and downstream road section is respectively 35km/h and 85km/h, and the speed difference absolute value in this section and upstream section is
The speed difference absolute value of 20km/h, this section and downstream road section is 30km/h.Speed for smooth different sections of highway is poor,Value is
0.6, then the speed recommended value in this section be calculated as：VSmoothly(xi, t+ Δs t)=(1-0.6) × 35+0.6 × 85=65km/h, then
Meteorology limits speed and transverse sliding vehicle speed gets the small value and notifies board units, that is, it is 60km/h to notify speed.
4th step, meanwhile, the utility model can also be to the operating speed early warning of tunnel exit, bend, accident-prone road section.
In a detection cycle, 85% speed (80km/h in such as first step) that the roadside unit in these places detects, such as
Fruit is more than or equal to the speed limit of setting, and such as 70km/h, then there are the risks of overspeed.In a detection cycle, when these
The roadside unit in place detects the vehicle of 2 or more, and maximum braking deceleration is more than or equal to 7.0 meter per seconds2, and vehicle stops
The vehicle time is more than or equal to 2 minutes, than being 7.0 meter per seconds if any the maximum braking deceleration of 3 vehicles2, 7.3 meter per seconds2, 7.5 meters/
Second2, and the down time of vehicle is respectively 4 minutes, 3 minutes, 2 minutes, then judges the wind for having vehicle rear-end collision accident to occur herein
Danger.Said circumstances need to carry out early warning.The warning information of highway operating speed is sent to vehicle-mounted list by information issuing system
Member.
In conclusion the utility model can judge meteorological restriction speed by meteorological condition first, which is maximum energy
The speed of permission, roadside unit are sent to the board units of this section vehicle, are sent out such as " severe day by wireless communication module
Gas, the warning information of speed limit 60km/h ".When next period starts, data processing module is by wireless communication module, by adopting
Collect and calculate smooth speed or the small value of each speed limit is issued vehicle-mounted list by 85% speed, roadside unit by wireless communication module
Member is referred to for vehicle operator, realizes the operating speed guiding to vehicle.
Moreover, at tunnel exit, bend, accident-prone road section, when there are during the risk of overspeed, roadside unit leads to
Wireless communication module is crossed, is sent to the board units of upstream vehicle, sends out the early warning of " front driving is too fast, please drive with caution "；
When street accidents risks occur, roadside unit is sent to the board units of upstream vehicle by wireless communication module when existing, and
Upstream vehicle sends out the early warning of " danger ahead, please slow down driving ".
Obviously, examples detailed above is just for the sake of clearly illustrating example, and is not intended to limit the embodiments.For
For those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments, and the obvious variation or change thus amplified out
Among the dynamic protection domain created still in the utility model.
Claims (6)
1. a kind of highway operating speed active forewarning system based on bus or train route collaboration, which is characterized in that including acquiring
The roadside unit of telecommunication flow information and the weather monitoring device to acquire weather information, the weather monitoring device include visibility
Detector, type rain-snow gauge and to the communication module with the roadside unit communication link, the roadside unit to
The board units communication of vehicle.
2. the highway operating speed active forewarning system as described in claim 1 based on bus or train route collaboration, which is characterized in that
The roadside unit includes communication module and data processing module, is arranged on highway main line entrance upstream and downstream 500-
At 1000 meters, at 200-300 meters of tunnel exit downstream, the centre position of bend centre position and accident-prone road section.
3. the highway operating speed active forewarning system as described in claim 1 based on bus or train route collaboration, which is characterized in that
It is communicated using special short range communication DSRC technology between board units and roadside unit, made between roadside unit and weather monitoring device
With 3G or 4G network communications.
4. the highway operating speed active forewarning system as described in claim 1 based on bus or train route collaboration, which is characterized in that
Visibility detector is mounted on Foggy Area, and type rain-snow gauge is mounted on along highway.
5. the highway operating speed active forewarning system as described in claim 1 based on bus or train route collaboration, which is characterized in that
Further include the variable-ratio direction board with the roadside unit communication link.
6. the highway operating speed active forewarning system as claimed in claim 5 based on bus or train route collaboration, which is characterized in that
The variable-ratio direction board includes LED display and warning lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371687.5U CN207517194U (en) | 2017-10-23 | 2017-10-23 | Highway operating speed active forewarning system based on bus or train route collaboration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371687.5U CN207517194U (en) | 2017-10-23 | 2017-10-23 | Highway operating speed active forewarning system based on bus or train route collaboration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207517194U true CN207517194U (en) | 2018-06-19 |
Family
ID=62534956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721371687.5U Expired - Fee Related CN207517194U (en) | 2017-10-23 | 2017-10-23 | Highway operating speed active forewarning system based on bus or train route collaboration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207517194U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742432A (en) * | 2017-10-23 | 2018-02-27 | 天津职业技术师范大学 | Highway operating speed active forewarning system and control method based on bus or train route collaboration |
| CN108665722A (en) * | 2018-07-11 | 2018-10-16 | 宿州云宏建设安装有限公司 | A kind of traffic accidents active prevention and control system |
| CN109584567A (en) * | 2018-12-29 | 2019-04-05 | 浙江方大智控科技有限公司 | Traffic management method based on bus or train route collaboration |
| CN111540223A (en) * | 2020-05-09 | 2020-08-14 | 浙江省交通规划设计研究院有限公司 | Expressway weather early warning system and method |
| CN112581772A (en) * | 2020-11-24 | 2021-03-30 | 淮阴工学院 | System and method convenient for positioning overspeed vehicle |
| CN113313956A (en) * | 2021-05-28 | 2021-08-27 | 广西北投交通养护科技集团有限公司 | System and method for preventing secondary traffic accidents |
| WO2022007143A1 (en) * | 2020-07-09 | 2022-01-13 | 惠州市德赛西威智能交通技术研究院有限公司 | Roadside internet of vehicles device, flyover road segment identification method, and vehicle-mounted internet of vehicles device |
| CN114333336A (en) * | 2022-03-17 | 2022-04-12 | 四川北斗云联科技有限公司 | Method for detecting and managing traffic flow among expressway cells |
| CN114566049A (en) * | 2022-03-08 | 2022-05-31 | 华设设计集团股份有限公司 | Tourism service area is with safe intelligent suggestion sign |
-
2017
- 2017-10-23 CN CN201721371687.5U patent/CN207517194U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742432A (en) * | 2017-10-23 | 2018-02-27 | 天津职业技术师范大学 | Highway operating speed active forewarning system and control method based on bus or train route collaboration |
| CN108665722A (en) * | 2018-07-11 | 2018-10-16 | 宿州云宏建设安装有限公司 | A kind of traffic accidents active prevention and control system |
| CN109584567A (en) * | 2018-12-29 | 2019-04-05 | 浙江方大智控科技有限公司 | Traffic management method based on bus or train route collaboration |
| CN111540223A (en) * | 2020-05-09 | 2020-08-14 | 浙江省交通规划设计研究院有限公司 | Expressway weather early warning system and method |
| WO2022007143A1 (en) * | 2020-07-09 | 2022-01-13 | 惠州市德赛西威智能交通技术研究院有限公司 | Roadside internet of vehicles device, flyover road segment identification method, and vehicle-mounted internet of vehicles device |
| CN112581772A (en) * | 2020-11-24 | 2021-03-30 | 淮阴工学院 | System and method convenient for positioning overspeed vehicle |
| CN113313956A (en) * | 2021-05-28 | 2021-08-27 | 广西北投交通养护科技集团有限公司 | System and method for preventing secondary traffic accidents |
| CN114566049A (en) * | 2022-03-08 | 2022-05-31 | 华设设计集团股份有限公司 | Tourism service area is with safe intelligent suggestion sign |
| CN114566049B (en) * | 2022-03-08 | 2023-03-14 | 华设设计集团股份有限公司 | Tourism service area is with safe intelligent suggestion sign |
| CN114333336A (en) * | 2022-03-17 | 2022-04-12 | 四川北斗云联科技有限公司 | Method for detecting and managing traffic flow among expressway cells |
| CN114333336B (en) * | 2022-03-17 | 2022-06-03 | 四川北斗云联科技有限公司 | Method for detecting and managing traffic flow among expressway cells |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207517194U (en) | Highway operating speed active forewarning system based on bus or train route collaboration | |
| CN107742432A (en) | Highway operating speed active forewarning system and control method based on bus or train route collaboration | |
| CN108510797B (en) | Forewarning System of Freeway and method based on radar detecting | |
| CN105374215B (en) | A kind of highway trackside prior-warning device | |
| CN112927512B (en) | Expressway ramp confluence control system and method | |
| CN105118316B (en) | The curved road safety speed computational methods and caution system cooperateed with based on bus or train route | |
| CN103350670B (en) | A kind of vehicle forward direction collision-proof alarm method based on car networking technology | |
| CN109559532B (en) | Expressway exit diversion area vehicle road cooperative safety early warning control method | |
| CN109859500A (en) | A kind of high speed merging area safe early warning method based on bus or train route collaboration | |
| CN208256095U (en) | A kind of highway real-time traffic flow monitoring and shunt induction intelligent and safe management system | |
| CN102568226B (en) | High speed variable speed limit control method based on adverse weather conditions | |
| CN112837535A (en) | Traffic information processing method, device, system, equipment and storage medium | |
| CN103413448B (en) | A kind of mountainous area highway continuous Large Longitudinal Slope section lorry intelligent early-warning system | |
| CN107945556A (en) | A kind of dynamic speed limit optimal control method under through street adverse weather | |
| CN111383465B (en) | Highway danger early warning and speed control system based on car networking | |
| CN108022440A (en) | The expressway fog early warning system and method for early warning cooperateed with based on unmanned aerial vehicle and bus or train route | |
| CN102542831A (en) | Variable speed-limit control method of expressway based on real-time traffic flow and weather information | |
| CN104157156A (en) | Vehicle speed dynamic management and early warning method for dangerous section of expressway | |
| CN109102696A (en) | The frequent section conflict method for early warning of intersection based on active safety | |
| CN105774810B (en) | Vehicle drive behavior treating method and apparatus | |
| CN205177162U (en) | Highway trackside early warning device | |
| CN109389845B (en) | Multi-factor integrated dynamic speed control system for expressway | |
| CN105405309A (en) | Expressway construction work zone vehicle speed control hierarchical early warning system | |
| CN103198713A (en) | Traffic accident reduction vehicle regulation and control method based on traffic data and weather data | |
| CN110428621A (en) | A kind of monitoring of Floating Car dangerous driving behavior and method for early warning based on track data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180619 Termination date: 20191023 |