CN206411871U - A kind of freeway tunnel mouthful variable speed-limit control system - Google Patents
A kind of freeway tunnel mouthful variable speed-limit control system Download PDFInfo
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- CN206411871U CN206411871U CN201720115159.7U CN201720115159U CN206411871U CN 206411871 U CN206411871 U CN 206411871U CN 201720115159 U CN201720115159 U CN 201720115159U CN 206411871 U CN206411871 U CN 206411871U
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Abstract
The utility model discloses technical field of intelligent traffic, specially a kind of freeway tunnel mouthful variable speed-limit control system, including supply unit, road surface deicing device, traffic flow detecting device, information delivery apparatus and central processing unit, the road surface deicing device is arranged on tunnel face, the traffic flow detecting device is arranged on the downstream position of tunnel face, and described information distributing device is arranged on the upstream position of tunnel face.The utility model can monitor tunnel face ice and snow on road surfaces situation in real time and remove in time, and the size in combination with the magnitude of traffic flow controls tunnel face speed limit in real time, tunnel face surface conditions and speed limit situation be issued in advance, it is ensured that the traffic safety at tunnel face.
Description
Technical field
The utility model is related to technical field of intelligent traffic, more particularly to a kind of freeway tunnel mouthful variable speed-limit control
System.
Background technology
With the fast development of highway, the tunnel built on highway is also more and more, but the presence in tunnel
Many potential disasters are faced with, tunnel face is icy on road or accumulated snow is exactly a disaster for often resulting in traffic accident.Tunnel
Road constantly drives the flowing of air due to self structure and vehicular traffic, causes the generation of air Temperature Difference inside and outside tunnel,
Tunnel face road surface easily freezes and accumulated snow after rainfall snowfall.Particularly in the winter time, icy on road, accumulated snow can not melt in time.
The gateway in tunnel is often along with the drastically change of light intensity, and the sight of human pilot needs a period of time and apart from adapting to
Light stronger outside dark light or tunnel in tunnel, it is impossible to ambient conditions and traffic feelings near fast reaction tunnel face
Condition, and when tunnel face road surface has icing or accumulated snow, cause vehicle brake braking distance to become big, car speed is high in addition, makes
Into brake not in time, so easily occurring vehicle rear-end collision, the pernicious traffic accident such as shunt into one another.
At present, China is provided with tunnel face suitable for the static speed limit in tunnel gateway under normal pavement state, is lacked
The weary detection to tunnel face pavement state, also lacks to tunnel face pavement state during the determination of tunnel gateway speed limit
Consideration.
Chinese Patent Application No. 201521070443.4 discloses a kind of tunnel exit pavement humidity alarming device, including wet
Inductor, control unit and display screen are spent, described humidity sensor is arranged on the humidity letter of tunnel exit collection tunnel exit
Breath, described display screen is arranged in tunnel, and described control unit is by handling the humidity information of humidity sensor collection simultaneously
The information is shown by display screen, the device is it is possible to notify that go to the humidity on the human pilot tunnel exit road surface at the tunnel
Information, ensures traffic safety at tunnel exit to a certain extent, but the device only reminds human pilot to note tunnel exit
The humidity condition on road surface, the not real-time restricted speed when pavement state is severe, support vehicles safety tunnel face.
Chinese Patent Application No. 201310611578.6 disclose a kind of prevention tunnel gateway nearby rear-end collision can
Become speed-limiting control method, this method sets Traffic flow detecting device in tunnel gateway downstream position, and upstream position is set in tunnel face
Variable information notice board is put, comprehensive various factors calculates optimal speed limit, vehicles passing in and out is reminded by variable information notice board,
The incidence of rear-end collision near tunnel gateway is significantly reduced, but this method does not account for tunnel gateway road surface
Wet and slippery degree has a great impact to vehicle safe driving, is frozen or accumulated snow if tunnel gateway is present, little in traffic flow
In the case of, in the speed limit calculated in the method still there is very big risk in traveling.
Utility model content
The purpose of this utility model be to overcome in the presence of prior art above-mentioned not enough there is provided a kind of highway tunnel
Road junction variable speed-limit control system, tunnel face ice and snow on road surfaces situation can be monitored in real time and is removed in time, in combination with traffic flow
The size of amount controls tunnel face speed limit in real time, it is ensured that the traffic safety at tunnel face.
In order to realize above-mentioned utility model purpose, the utility model provides following technical scheme：
A kind of freeway tunnel mouthful variable speed-limit control system, including the inspection of supply unit, road surface deicing device, vehicle flowrate
Survey device, information delivery apparatus and central processing unit.The road surface deicing device is arranged on tunnel face, and tunnel can be monitored in real time
Mouth pavement state and in time pro-active intervention, will influence the factor of traffic safety to eliminate；The traffic flow detecting device is arranged on tunnel
The downstream position at road junction, traffic flow data can be obtained in real time and traffic flow modes is monitored；Described information distributing device is set
Put the upstream position in tunnel face, can real-time release road surface ahead situation and traffic conditions, real-time release speed limit reminded
Driven with caution toward vehicle.
The road surface deicing device includes telemetry unit and active deicer, the telemetry unit, active
Deicer is connected with the central processing unit.Wherein described telemetry unit includes remote sensing type road surface state sensor and distant
Gan Shi roads face temperature sensor, the situation of the ponding, accumulated snow or icing on tunnel face road surface can be monitored in real time, pavement state is believed
Breath sends to central processing unit and carries out analysis judgement, controls the active deicer to influenceing traffic safety on the road surface of tunnel face
Factor intervened.
The active deicer includes pillar and the heating system on pillar, and the heating system includes air inlet
Mouth, air blower, heater, gas outlet, the gas outlet are arranged on one side of the pillar close to roadside, and the air inlet is arranged on
The one side opposite with gas outlet on pillar, the air blower, heater are arranged on the hollow inside of pillar, can be in center processing
Device receive telemetry unit detect tunnel face road surface exist ponding, accumulated snow or freeze when, active heater, air blast
Machine, the quick hot blast road pavement that produces is heated up, and ponding, accumulated snow or the quick removing that freezes is clean.
The active deicer includes pillar and the Snow Agent dispenser on pillar, the Snow Agent dispenser
Including nozzle and Snow Agent accommodating chamber, it can detect that road surface has ice or snow to cause friction effects to be driven a vehicle in telemetry unit
When safe, control the Snow Agent dispenser to open by central processing unit, Snow Agent is sprayed by road pavement and removes road in time
, in order to avoid ice and snow, which thickeies, causes slipperiness on roads, there is traffic accident in the ice and snow in face.
The Snow Agent is organic Snow Agent, and snow melt effect is good, not corrosion-damaged to environment.
The traffic flow detecting device be wagon detector, to detect vehicle by and vehicle speed condition.
Described information distributing device is variable information board, can have road surface ice, snowy, ponding, deicing to complete, removed the snow
The information such as dry into, road surface to issue out, road ahead situation, traffic and real-time speed limit situation known for human pilot,
Judge in time.
The power module is device of solar generating, including solar battery group, controller for solar and battery, institute
State solar battery group connection controller for solar, controller for solar connection battery, using solar powered effective solution
Remote mountain areas highway equipment power difficulty the problem of.
Compared with prior art, the beneficial effects of the utility model：
1st, the utility model monitors tunnel face pavement state letter in real time using telemetry unit and traffic flow detecting device
Breath and vehicle travel the vehicle flowrate situation in downstream, and central processing unit is after these information are received, and comprehensive analysis, which is calculated, to be worked as
Before in the case of F-Zero limits value, by the issue in time of pavement state information, telecommunication flow information and Maximum speed limit value can
Become on advices plate, so that human pilot knows road ahead and traffic, timely regulation speed in advance.
2nd, the utility model employs telemetry unit, can be accurately detected the thickness of ponding, icing, accumulated snow, energy
Enough appearance that ice crystal is detected before skidding occurs in road, open active deicer, are not road surface heap occur in time
Product ice of great thickness layer, influences traffic safety；Telemetry unit is used simultaneously, is more convenient to install and safeguards, due to remote sensing detection
Device uses Noninvasive testing technology, and without carrying out grooving to road surface during installation, this is for the height that has built up
Installation cost is undoubtedly greatlyd save for fast highway, and telemetry unit will not be as the sensor of flush type is easily by mistake
Damage is rolled toward vehicle, the service life of detection means is extended.
3rd, the utility model uses device of solar generating, is powered using resource is cleaned for whole system, solves partially
The road furniture in remote area is powered difficult problem, while being powered using clean energy resource, to be also beneficial to alleviate environmental pollution, the energy tight
The problems such as opening.
Brief description of the drawings：
Fig. 1 is the structural representation of the utility model preferred embodiment 1.
Fig. 2 is the structural representation of road surface deicer in the utility model preferred embodiment 1.
Fig. 3 is the workflow diagram of road surface deicer in the utility model preferred embodiment 1.
Fig. 4 is the structural representation of road surface deicer in the utility model preferred embodiment 2.
Marked in figure：1- solar battery groups, 2- telemetry units, 3- air outlets, 4- pillars, 5- nozzles.
Embodiment
The utility model is described in further detail with reference to test example and embodiment.But should not be by this
The scope for being interpreted as the above-mentioned theme of the utility model is only limitted to following embodiment, all to be realized based on the utility model content
Technology belongs to scope of the present utility model.
It is that will be rolled away from the stretch either tunnel for will enter outside tunnel tunnel outside tunnel to define tunnel face upstream
Stretch.
It is the stretch having just enter into tunnel or the stretch just rolled away from outside tunnel to define tunnel face downstream.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of freeway tunnel mouthful variable speed-limit control system, including device of solar generating,
Road surface deicing device, traffic flow detecting device, information delivery apparatus and central processing unit.
The road surface deicing device is arranged on tunnel face, and it includes telemetry unit 2 and active deicer, described distant
Feel detection means 2, active deicer to communicate to connect with the central processing unit.Wherein described telemetry unit 2 includes distant
Gan Shi roads surface state sensor and remote sensing type road face temperature sensor.Remote sensing type road surface state sensor is former using spectral measurement
Reason, can accurately measure the thickness of ponding, icing, accumulated snow, and ice crystal just can be accurately measured before ice crystal causes road to skid
Occur, it is ensured that the traffic safety of road, used in combination with remote sensing type road face temperature sensor, to causing road surface friction force to reduce
Factor judge it is more accurate.Telemetry unit 2 can monitor the situation of the ponding, accumulated snow or icing on tunnel face road surface in real time,
Pavement state information is sent to central processing unit and carries out analysis judgement, the active deicer is controlled on the road surface of tunnel face
The factor of influence traffic safety is intervened.
The active deicer include pillar 4 and the heating system on pillar 4, the heating system include into
Gas port, air blower, heater, gas outlet 3, the gas outlet 3 are arranged on one side of the pillar 4 close to roadside, the air inlet
One side opposite with gas outlet 3 on pillar is arranged on, the air blower, heater are arranged on the hollow inside of pillar 4, Neng Gou
When telemetry unit 2 detects that road surface has water, ice, snow to cause road surface friction force to reduce, actively removed by central processing unit control
Ice production apparatus is opened, and timely road pavement blowing hot-air is dried or deicing snow removing, ensures that road safety is passed through.
The traffic flow detecting device is arranged on the front of the downstream position of tunnel face, i.e. vehicle traveling, can examine in real time
Traffic flow conditions in front of measuring car traveling, whether the downstream that may determine that tunnel face based on the traffic flow data detected occurs
Congestion so that central processing unit can find downstream congestion status as early as possible and then adjust speed limit, it is ensured that vehicle is in safe distance
Interior completion braking procedure.Preferably, the traffic flow detecting device be wagon detector, to detect vehicle by with speed feelings
Condition.
Described information distributing device is arranged on the upstream position of tunnel face, being capable of real-time release road surface ahead situation and traffic
Situation, real-time release speed limit reminds vehicular traffic to drive with caution.Preferably, described information distributing device is variable feelings
Plate is reported, there can be road surface the information such as ice, snowy, ponding, deicing is completed, snow removing is completed, road surface drying to issue out, for traveling
And the vehicle come knows road ahead situation, traffic and real-time speed limit situation, speed is controlled in advance.
Device of solar generating includes solar battery group 1, controller for solar and battery, the solar battery group
1 connection controller for solar, controller for solar connection battery.Solar battery group 1 is arranged on the top of pillar 4, described
Pillar 4 is hollow structure, and controller for solar is arranged on the hollow inside of the pillar 4, and battery may be mounted at pillar 4
Inside can also be arranged on underground.In addition, supply unit can also be consistent with the power supply mode that tunnel interior lighting device is used, can
To be directly connected to the power supply of tunnel interior lighting device, the installation cost of the system is so reduced.
Connection between central processing unit and each device can be base by wireless Zigbee network, wireless Zigbee network
It is the wireless communication technology of a kind of short distance, low-power consumption in the low-power consumption LAN protocol of IEEE802.15.4 standards.
Fig. 3 shows the workflow diagram of road surface deicer in the utility model preferred embodiment.
With reference to Fig. 3, the workflow of road surface deicer is as follows in the utility model preferred embodiment：When remote sensing type road face
When temperature sensor detects pavement temperature and is not higher than zero degree, while remote sensing type road face situation sensors detect road surface and have accumulated snow
Situation, central processing unit control start heating system, start air blower, heater, by the hollow branch of air inspiration of air inlet
In post 4, heated device is heated into hot blast and blown out by gas outlet 3, by the Snowremoval on road surface；If remote sensing type road planar condition is sensed
When device detects road surface and has the situation of ice, central processing unit control starts heating system, and the icing on road surface is removed；Work as remote sensing
When formula road face temperature sensor detects pavement temperature higher than zero degree, while remote sensing type road face situation sensors detect road surface and had
The situation of ponding, central processing unit control starts heating system, and the ponding on road surface is removed；Other situations, road surface is dried can
Driven safely with support vehicles.
Road surface deicer can monitor tunnel face in real time using telemetry unit in the utility model preferred embodiment
The situation on road surface, the ice and snow and ponding situation on road surface can be found in time, when icing, accumulated snow or ponding are just produced with regard to energy
Actively take measures, the factor that coefficient of friction influence anti-slide performance will be reduced on road surface is eliminated, be unlikely to make on road surface ice and snow or
Ponding further aggravates to trigger traffic accident.
Refer to be published in《Highway communication science and technology》11 phases in 2010《Road surface slippery situation index is developed and its in traffic circulation pipe
Application in reason》Road surface slippery situation index is divided into 4 grades in one text, as shown in table 1：
Table 1
As shown in Table 1, when there is certain ponding on road surface, the anti-slide performance on road surface declines, and has influence on normal vehicle operation,
But road pavement antiskid performance impact it is maximum belong to accumulated snow and icing, therefore, freeway tunnel mouthful once occur accumulated snow or
Freeze, easily skidded for the vehicle run at high speed, cause traffic accident.
Refer to《Road surface slippery situation index is developed and its application in traffic operation》According to road surface slippery situation in one text
Recommendation speed limit under condition, special traffic flow.For example, the speed limit of general freeway tunnel is 80km/h, work as wagon flow
Recommend speed limit in below 80km/h when measuring as 400pcu, when coefficient of friction is 015, coefficient of friction recommends speed limit when being 0135
Recommend speed limit in below 70km/h, when coefficient of friction is 012 in below 60km/h, it is identical to rub as wagon flow numerical quantity is bigger
Wipe recommends speed limit less and less under coefficient.Tunnel face road surface slippery situation index and ice and snow are detected in combination with telemetry unit
Situation, comprehensive consideration calculates recommendation speed limit.
In addition, the speed limits such as " 80km/h ", " 60km/h ", " 40km/h ", " 20km/h " are prestored in central processing unit, when
The signal that central processing unit is detected according to telemetry unit and wagon detector, handles it and provides speed limit, by variable
Advices plate 5 releases news as " there is ponding tunnel face, and speed limit 60km/h ", " there is accumulated snow tunnel face, and speed limit 40km/h please drives with caution
Sail " and " road ahead is crowded, speed limit 40km/h simultaneously note maintain safe distance " etc. information warning, advance notice human pilot road ahead
Information, when surface gathered water, accumulated snow or icing removing are finished, variable information board releases news as " ponding/accumulated snow/icing is clear
Except " etc. prompting, inform that human pilot can be with safe passing.
Embodiment 1
As shown in figure 4, the present embodiment and embodiment 1 differ only in active deicer, the active of the present embodiment is removed
Ice production apparatus includes pillar 4 and the Snow Agent dispenser on the pillar 4, and the Snow Agent dispenser includes the He of nozzle 5
Snow Agent accommodating chamber, the nozzle 5 is arranged on pillar 4 close to the side of road, and the Snow Agent accommodating chamber is arranged in pillar 4
Empty inside.When can detect that road surface has ice or snow to cause frictional force reduction influence traffic safety in telemetry unit, by
Central processing unit controls the Snow Agent dispenser to open, and the ice and snow that Snow Agent removes road surface in time is sprayed by road pavement,
In order to avoid ice and snow, which thickeies, causes slipperiness on roads, there is traffic accident.
Preferably, the Snow Agent is organic Snow Agent, and snow melt effect is good, not corrosion-damaged to environment.At present, at a high speed
Using more often chloride salt Snow Agent in highway, and this kind of Snow Agent is although cheap, but its residue road pavement
There is certain corrosiveness with automobile rubber tire.The organic Snow Agent used in the present embodiment does not corrode work to infrastructure
With, but price is higher, but the utility model is the pavement usage in freeway tunnel mouthful, is not that large area is used,
So the use of organic Snow Agent will not cause burden to the maintenance cost of highway.
The present embodiment can not the ponding of road pavement be purged, road pavement antiskid performance impact is maximum as shown in Table 1
Factor is accumulated snow and icing, eliminates accumulated snow or the icing on tunnel face road surface, can also ensure that vehicular traffic is pacified to a certain extent
Full traveling, while the power consumption of the present embodiment is relatively low, it is adaptable to which some solar energy resourceses are not that very abundant tunnel face installation makes
With.
Claims (9)
1. a kind of freeway tunnel mouthful variable speed-limit control system, including supply unit, road surface deicing device, vehicle Flow Detection
Device, information delivery apparatus and central processing unit, the road surface deicing device are arranged on tunnel face, the traffic flow detecting device
The downstream position of tunnel face is arranged on, described information distributing device is arranged on the upstream position of tunnel face.
2. freeway tunnel mouthful variable speed-limit control system according to claim 1, it is characterised in that remove on the road surface
Ice production apparatus includes telemetry unit and active deicer, the telemetry unit, active deicer and the center
Processor is connected.
3. freeway tunnel mouthful variable speed-limit control system according to claim 2, it is characterised in that the remote sensing inspection
Surveying device includes remote sensing type road surface state sensor and remote sensing type road face temperature sensor.
4. freeway tunnel mouthful variable speed-limit control system according to claim 2, it is characterised in that the active is removed
Ice production apparatus include pillar and the heating system on pillar, the heating system include air inlet, air blower, heater,
Gas outlet, the gas outlet is arranged on one side of the pillar close to roadside, and the air inlet is arranged on pillar and gas outlet phase
Anti- one side, the air blower, heater are arranged on the hollow inside of pillar.
5. freeway tunnel mouthful variable speed-limit control system according to claim 2, it is characterised in that the active is removed
Ice production apparatus includes pillar and the Snow Agent dispenser on pillar, and the Snow Agent dispenser includes nozzle and Snow Agent is held
Receive chamber.
6. freeway tunnel mouthful variable speed-limit control system according to claim 5, it is characterised in that the Snow Agent
For organic Snow Agent.
7. freeway tunnel mouthful variable speed-limit control system according to claim 1, it is characterised in that the vehicle flowrate
Detection means is wagon detector.
8. freeway tunnel mouthful variable speed-limit control system according to claim 1, it is characterised in that described information is sent out
Arrange and be set to variable information board.
9. freeway tunnel mouthful variable speed-limit control system according to claim 1, it is characterised in that the power supply mould
Block is device of solar generating, including solar battery group, controller for solar and battery, the solar battery group connection
Controller for solar, controller for solar connection battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720115159.7U CN206411871U (en) | 2017-02-08 | 2017-02-08 | A kind of freeway tunnel mouthful variable speed-limit control system |
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|---|---|---|---|
| CN201720115159.7U CN206411871U (en) | 2017-02-08 | 2017-02-08 | A kind of freeway tunnel mouthful variable speed-limit control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808534A (en) * | 2017-11-24 | 2018-03-16 | 北京百纳友为科技有限公司 | A kind of tunnel safety protector and system |
| CN109859471A (en) * | 2019-02-27 | 2019-06-07 | 长安大学 | A kind of inlet and outlet changeover portion road surface running vehicle safety comprehensive early warning of freeway tunnel and feedback system and method |
| CN110930712A (en) * | 2019-12-30 | 2020-03-27 | 山东国惠安创智能物联发展有限公司 | Electric vehicle remote control method and system |
| CN113256971A (en) * | 2021-05-07 | 2021-08-13 | 公安部第三研究所 | Highway sealing control system and method |
| CN117612387A (en) * | 2023-11-27 | 2024-02-27 | 浙江盛暄电力科技有限公司 | Intelligent tunnel and pipe gallery comprehensive monitoring system and monitoring method |
-
2017
- 2017-02-08 CN CN201720115159.7U patent/CN206411871U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808534A (en) * | 2017-11-24 | 2018-03-16 | 北京百纳友为科技有限公司 | A kind of tunnel safety protector and system |
| CN109859471A (en) * | 2019-02-27 | 2019-06-07 | 长安大学 | A kind of inlet and outlet changeover portion road surface running vehicle safety comprehensive early warning of freeway tunnel and feedback system and method |
| CN110930712A (en) * | 2019-12-30 | 2020-03-27 | 山东国惠安创智能物联发展有限公司 | Electric vehicle remote control method and system |
| CN110930712B (en) * | 2019-12-30 | 2021-07-20 | 山东国惠安创智能物联发展有限公司 | Electric vehicle remote control method and system |
| CN113256971A (en) * | 2021-05-07 | 2021-08-13 | 公安部第三研究所 | Highway sealing control system and method |
| CN117612387A (en) * | 2023-11-27 | 2024-02-27 | 浙江盛暄电力科技有限公司 | Intelligent tunnel and pipe gallery comprehensive monitoring system and monitoring method |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180913 Address after: 410016 B-2708 280, Yuanda Road, Changsha, Hunan. Patentee after: Hunan Tongli traffic industry Co., Ltd. Address before: 618000 1 Cui Hu house, A, south of Cui Hu Road, Deyang, Sichuan. Patentee before: Deyang Li Long Yun Intellectual Property Operation Co., Ltd. |
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| TR01 | Transfer of patent right |