CN212724341U - Variable speed-limiting early warning system for tunnel portal of expressway in heavy fog weather - Google Patents
Variable speed-limiting early warning system for tunnel portal of expressway in heavy fog weather Download PDFInfo
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- CN212724341U CN212724341U CN202021773120.2U CN202021773120U CN212724341U CN 212724341 U CN212724341 U CN 212724341U CN 202021773120 U CN202021773120 U CN 202021773120U CN 212724341 U CN212724341 U CN 212724341U
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Abstract
The utility model discloses a variable speed-limiting early warning system for a tunnel portal of a highway in heavy fog weather, which comprises a controller, a visibility detector electrically connected with the controller, an annular coil detector, a variable speed-limiting information LED control panel, a voice alarm and an inductive annular vertical surface marking outline strip, wherein the variable speed-limiting information LED control panel is connected with the controller through the annular coil detector; the visibility detector is used for monitoring the change of visibility at the tunnel opening of the highway in real time and transmitting the fog information to the controller in real time; the annular coil detector identifies the passing condition of the vehicle by using the induction coil; the variable speed limit information LED control panel is used for outputting speed limit information and a prompt; the induction type annular vertical surface marking outline belt is used for warning a driver by flickering light under the conditions of low visibility and large traffic in a tunnel. The system can effectively solve the problem that vehicles at the tunnel portal collide with the rear or the wall in heavy fog weather, and reduces traffic accidents.
Description
Technical Field
The utility model relates to a highway, concretely relates to variable speed limit early warning system of highway tunnel portal under heavy fog weather.
Background
With the vigorous development of highway construction in China, the method continuously extends to Chongshan mountains and offshore deep water areas, and the total amount and construction scale of the highway tunnel are continuously increased. In the last decade, the highway tunnel in China is the world with the largest scale, the largest quantity, the most complex geological conditions and structural forms and the fastest development speed. The rapid development of the tunnel and the traffic accidents caused by the rapid development of the tunnel are inevitable. Particularly, due to the fact that the visibility of the highway is low and the sight distance is insufficient due to weather reasons such as heavy fog, a driver cannot make timely and correct judgment on the road conditions in front, and particularly, the risk of traffic accidents is greatly increased on the road sections at the tunnel mouths. At present, most of the measures for coping basic road sections in foggy weather are considered, the research on road sections at tunnel mouths is less, particularly, the consideration on the combination of traffic in tunnels and foggy weather outside tunnels is combined, and the related research on early warning aiming at the auditory sense and the visual sense of drivers is less.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing a variable speed limit early warning system of highway tunnel portal under heavy fog weather.
In order to realize the technical purpose, the utility model discloses a scheme is: the variable speed-limiting early warning system for the tunnel portal of the expressway in the foggy weather comprises a controller, a visibility detector, an annular coil detector, a variable speed-limiting information LED control panel, a voice alarm and an induction type annular vertical surface marking outline strip, wherein the visibility detector, the annular coil detector, the variable speed-limiting information LED control panel, the voice alarm and the induction type annular vertical surface marking outline strip are electrically connected with the controller;
the visibility detector is used for monitoring the change of visibility at the tunnel opening of the highway in real time and transmitting the fog information to the controller in real time; the annular coil detector identifies the passing condition of the vehicle by using the induction coil; the variable speed limit information LED control panel is used for outputting speed limit information and a prompt; the induction type annular vertical surface marking outline belt is used for warning a driver by flickering light under the conditions of low visibility and large traffic in a tunnel.
Preferably, the controller comprises a power interface, a communication interface, a collected signal access interface, a central processing unit, a data output interface and a signal output interface.
Preferably, the visibility detector is arranged on a vertical rod at the road side 300-400m away from the tunnel entrance.
Preferably, the loop coil detector is buried under a road surface which enters the tunnel for a distance.
Preferably, the variable speed limit information LED control panel is arranged at a position 100-200m away from the front of the tunnel entrance.
Preferably, the voice alarm is arranged near the variable speed limit information LED control panel.
Preferably, the induction type annular vertical surface mark outline belt is arranged at the tunnel entrance, and when the traffic volume in the tunnel exceeds the standard, the double-color lamps of the induction type annular vertical surface mark outline belt flash alternately to warn the driver.
The utility model has the advantages that: the variable speed limiting information LED control panel, the voice alarm and the induction type annular vertical surface marking contour belt are used for monitoring the change of visibility in real time through the visibility detector and detecting the number of vehicles entering a tunnel through the induction annular coil detector, transmitting information to the controller, processing and converting the information through the central processing unit, and outputting data and signals to the variable speed limiting information LED control panel, the voice alarm and the induction type annular vertical surface marking contour belt. Under the conditions of low visibility in foggy weather and high traffic volume in a tunnel, the variable speed-limiting information LED control panel displays speed limiting and prompting words, and meanwhile, the voice alarm whistles and the double-color lamps of the induction type annular vertical surface mark outline strip flicker alternately to play a role in strengthening warning. The system can effectively solve the problem that vehicles at the tunnel portal collide with the rear or the wall in heavy fog weather, and reduces traffic accidents.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic structural diagram of the induction type annular vertical surface marking profile belt of the present invention.
Wherein: 1. a controller 2, a visibility detector; 3. a loop coil detector; 4. a variable speed limit information LED control panel; 5. a voice alarm; 6. the induction type annular vertical surface marks the outline belt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, specific embodiment be a variable speed limit early warning system of highway tunnel portal under heavy fog weather, including controller 1 to and the visibility detector 2 that the electricity is connected with controller 1, toroidal coil detector 3, variable speed limit information LED control panel 4, voice alarm 5, induction type annular facade mark profile area 6, interconnect between each equipment, data interchange, thereby show speed and suggestion language on variable speed limit information LED control panel 4, operating signal transmits induction type annular facade mark profile area and voice alarm.
This application can be based on the traffic in the tunnel and the outer big fog weather in tunnel to combine sense of hearing and vision in time to send the early warning to the driver, with the danger that meteorological condition produced the driving to minimum. Specifically, the visibility detector is used for monitoring the visibility change at the tunnel entrance of the highway in real time and transmitting the fog information to the controller in real time; the annular coil detector identifies the passing condition of the vehicle by using the induction coil; the variable speed limit information LED control panel is used for outputting speed limit information and a prompt word, informing a driver of the speed of entering the tunnel in advance, and reminding the driver of real-time dynamic and foggy weather visibility conditions in the tunnel in front of the driver by characters; the induction type annular vertical surface marking outline belt is used for warning a driver by flickering light under the conditions of low visibility and large traffic in a tunnel.
The controller is the core of the whole system, the controller 1 comprises a power supply interface, a communication interface, a collected signal access interface, a central processing unit, a data output interface and a signal output interface, and each interface is connected with the visibility detector 2, the annular coil detector 3, the variable speed-limiting information LED control panel 4, the voice alarm 5 and the induction type annular vertical surface marking outline belt 6 to realize data exchange among the devices.
As shown in fig. 2, the visibility detector 2 is preferably arranged on a vertical rod at 300-400m away from the tunnel entrance; the annular coil detector 3 is buried under the road surface which enters the tunnel for a certain distance; the variable speed limit information LED control panel 4 is arranged at a position 100-200m away from the front of the tunnel entrance; the voice alarm 5 is arranged near the variable speed limit information LED control panel; the induction type annular vertical surface mark outline belt 6 is arranged at the tunnel entrance, and when the traffic in the tunnel exceeds the standard, the double-color lamps of the induction type annular vertical surface mark outline belt flash at intervals to warn a driver.
The application provides dynamic variable speed limit early warning information for the following two conditions:
first, according to the 4.2.4 th item of the specification JTG D70/2-2014, which is the second volume of traffic engineering and affiliated facilities in the design Specification of highway tunnels, the speed limit sign is preferably arranged at the position 100m-00m before the entrance of the tunnel. If visibility is low in foggy weather and traffic volume in the tunnel is large, the variable speed limit information LED control board respectively displays the speed of 60Km/h, 40Km/h or 20Km/h by combining with detection of visibility outside the tunnel, and reminds a driver that the visibility in front is low, the traffic volume in the tunnel is large, and the driver asks to turn on a fog light to drive carefully; the voice alarm begins to whistle, the induction type annular vertical surface mark outline band begins to flash and reflect light alternately by the double-color lamp, and the induction type annular vertical surface mark outline band and the variable speed limit information LED control panel synchronously operate.
And secondly, if the visibility is low in foggy weather and the traffic volume in the tunnel is small, the detected traffic is smooth, the variable speed limiting information LED control panel displays the speed of 100Km/h or 80Km/h respectively according to the visibility condition outside the tunnel, and prompts a driver to prompt that the visibility in the front is low and the fog lamp is required to be turned on to pay attention to safety.
The implementation method of the system comprises the following steps:
step 1: and detecting the passing traffic volume in a distance entering the tunnel by adopting a ring coil detector.
Step 2: and monitoring the visibility change at the tunnel mouth of the expressway in real time, and transmitting the monitored traffic volume and real-time fog information in the tunnel to the controller.
And step 3: the controller starts parallel operation and performs signal and data processing.
And 4, step 4: after the controller finishes processing, signals are transmitted to the variable speed-limiting information LED control panel, the voice alarm and the induction type annular vertical surface mark outline belt, the variable speed-limiting information LED control panel displays speed and a prompt, the bicolor lamps of the induction type annular vertical surface mark outline belt flash alternately, and the voice alarm begins to whistle.
And 5: if visibility is low in foggy weather and traffic volume in the tunnel is large, the variable speed limit information LED control board dynamically and respectively displays the speed to be 60Km/h, 40Km/h or 20Km/h, and warns a driver that the visibility in front is low, the traffic volume in the tunnel is large, and the driver asks to turn on a foglight to drive carefully; the voice alarm begins to whistle, and the double-color lamps of the inductive annular vertical surface mark outline strip begin to flash and reflect light at intervals; if the visibility is low in foggy weather and the traffic volume in the tunnel is small, the variable speed limit information LED control panel respectively displays that the speed is 100Km/h or 80Km/h and prompts a driver to prompt that the visibility in front is low and the driver please turn on the fog lamp to pay attention to safety.
The variable speed limiting information LED control panel, the voice alarm and the induction type annular vertical surface marking contour belt are used for monitoring the change of visibility in real time through the visibility detector and detecting the number of vehicles entering a tunnel through the induction annular coil detector, transmitting information to the controller, processing and converting the information through the central processing unit, and outputting data and signals to the variable speed limiting information LED control panel, the voice alarm and the induction type annular vertical surface marking contour belt. Under the conditions of low visibility in foggy weather and high traffic volume in a tunnel, the variable speed-limiting information LED control panel displays speed limiting and prompting words, and meanwhile, the voice alarm whistles and the double-color lamps of the induction type annular vertical surface mark outline strip flicker alternately to play a role in strengthening warning. The system can effectively solve the problem that vehicles at the tunnel portal collide with the rear or the wall in heavy fog weather, and reduces traffic accidents.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (7)
1. Variable speed limit early warning system of highway tunnel portal under heavy fog weather, its characterized in that: the system comprises a controller, a visibility detector, an annular coil detector, a variable speed-limiting information LED control panel, a voice alarm and an inductive annular vertical surface marking profile belt, wherein the visibility detector, the annular coil detector, the variable speed-limiting information LED control panel, the voice alarm and the inductive annular vertical surface marking profile belt are electrically connected with the controller;
the visibility detector is used for monitoring the change of visibility at the tunnel opening of the highway in real time and transmitting the fog information to the controller in real time; the annular coil detector identifies the passing condition of the vehicle by using the induction coil; the variable speed limit information LED control panel is used for outputting speed limit information and a prompt; the induction type annular vertical surface marking outline belt is used for warning a driver by flickering light under the conditions of low visibility and large traffic in a tunnel.
2. The variable speed-limiting early warning system of the tunnel portal of the expressway in the foggy weather as claimed in claim 1, wherein: the controller comprises a power supply interface, a communication interface, a collected signal access interface, a central processing unit, a data output interface and a signal output interface.
3. The variable speed-limiting early warning system of the tunnel portal of the expressway in the foggy weather as claimed in claim 1, wherein: the visibility detector is arranged on a vertical rod at the road side 300-400m away from the tunnel entrance.
4. The variable speed-limiting early warning system of the tunnel portal of the expressway in the foggy weather as claimed in claim 1, wherein: the loop coil detector is buried under the road surface which enters the tunnel for a distance.
5. The variable speed-limiting early warning system of the tunnel portal of the expressway in the foggy weather as claimed in claim 1, wherein: the variable speed limit information LED control panel is arranged at a position 100-200m away from the tunnel entrance.
6. The variable speed-limiting early warning system of the tunnel portal of the expressway in the foggy weather as claimed in claim 1, wherein: the voice alarm is arranged near the variable speed limit information LED control panel.
7. The variable speed-limiting early warning system of the tunnel portal of the expressway in the foggy weather as claimed in claim 1, wherein: the induction type annular vertical surface mark outline belt is arranged at the tunnel entrance, and when the traffic volume in the tunnel exceeds the standard, the double-color lamps of the induction type annular vertical surface mark outline belt flash at intervals to warn a driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021773120.2U CN212724341U (en) | 2020-08-24 | 2020-08-24 | Variable speed-limiting early warning system for tunnel portal of expressway in heavy fog weather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021773120.2U CN212724341U (en) | 2020-08-24 | 2020-08-24 | Variable speed-limiting early warning system for tunnel portal of expressway in heavy fog weather |
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| Publication Number | Publication Date |
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| CN212724341U true CN212724341U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021773120.2U Active CN212724341U (en) | 2020-08-24 | 2020-08-24 | Variable speed-limiting early warning system for tunnel portal of expressway in heavy fog weather |
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| CN (1) | CN212724341U (en) |
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