CN212724331U - Variable speed limit induction prompt system of tunnel entry based on traffic volume - Google Patents
Variable speed limit induction prompt system of tunnel entry based on traffic volume Download PDFInfo
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- CN212724331U CN212724331U CN202021772848.3U CN202021772848U CN212724331U CN 212724331 U CN212724331 U CN 212724331U CN 202021772848 U CN202021772848 U CN 202021772848U CN 212724331 U CN212724331 U CN 212724331U
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Abstract
The utility model discloses a variable speed limit response reminder system of tunnel entry based on traffic volume, camera sensor is used for discernment to survey the vehicle flow who gets into one section distance in tunnel, the induction coil detector is used for detecting the vehicle speed of traveling that gets into one section distance in tunnel, the LED information board is used for exporting speed limit value and suggestion language, the response contour band is used for when the traffic jams, sends warning light. This application is surveyed through this sectional vehicle quantity and speed through camera sensor and induction loop coil detector, makes data more accurate. The signal transmission who will gather is to the controller, handles and converts through the central processing unit of controller, with information output LED information board and response contour band, and the control panel shows speed limit and suggestion, responds to the contour band simultaneously and controls the red light alternate scintillation reflection of light condition, reminds the driver to pay attention to driving, slows down slowly.
Description
Technical Field
The utility model relates to a highway tunnel traffic control facility, concretely relates to variable speed limit response reminder system of tunnel entry based on traffic volume.
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. Especially, at the entrance of a long tunnel, when the traffic volume is large and the tunnel starts to queue vehicles and jam, if the distance length of the speed reduction of the vehicles is not enough, the drivers can easily cause rear-end collision or wall collision accidents when the speed of the vehicles is reduced to a certain fixed speed limit value, and the speed limit value can be recommended to be dynamically changed in real time according to the traffic condition at the entrance of the tunnel, so that the traffic jam phenomenon is prevented.
At present, most of tunnel portal speed limiting methods adopt a fixed type, namely, a tunnel portal uses a fixed speed limiting value, but for a road section with traffic volume changing greatly in different time periods, the fixed speed limiting value is not suitable, and the comprehensive consideration of external factors is lacked.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing a variable speed limit response reminder system of tunnel entry based on traffic volume can guarantee to get into the current safety of tunnel portal, reduces the emergence of traffic safety accident.
In order to realize the technical purpose, the utility model discloses a scheme is: a variable speed-limiting induction prompt system of a tunnel entrance based on traffic is applied to a highway tunnel entrance and comprises a camera sensor, an induction coil detector, a controller, an LED information board and an induction profile band; the camera sensor is used for identifying and detecting the traffic flow entering the tunnel within a certain distance, the induction coil detector is used for detecting the running speed of the vehicle entering the tunnel within a certain distance, the LED information board is used for outputting a speed limit value and a prompt, and the induction outline strip is used for emitting warning light when traffic jam occurs; the controller is connected with the camera sensor, the induction coil detector, the LED information board and the induction outline band, so that data and information exchange among equipment is realized, received commands are decoded, and information output is realized through an interface.
Preferably, the controller comprises a power interface, a collected signal input register, a central processing unit, a memory, an information output register and an information output interface.
Preferably, the camera sensor is provided above a wall that enters the tunnel for a distance.
Preferably, the induction coil detector is buried under a road surface which enters the tunnel for a distance, and the induction coil detector is annular.
Preferably, the LED information board is arranged at a position 100-200m away from the front of the tunnel opening.
Preferably, the induction outline band is arranged on the whole tunnel portal induction outline band and is provided with alternate twinkling lights.
The utility model has the advantages that: this application is surveyed through this sectional vehicle quantity and speed through camera sensor and induction loop coil detector, makes data more accurate. The signal transmission who will gather is to the controller, handles and converts through the central processing unit of controller, with information output LED information board and response contour band, and the control panel shows speed limit and suggestion, responds to the contour band simultaneously and controls the red light alternate scintillation reflection of light condition, reminds the driver to pay attention to driving, slows down slowly. The method and the device can effectively solve the problem that the vehicle at the tunnel portal knocks into the rear or hits the wall, and reduce accidents.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a connection diagram of the controller according to the present invention;
fig. 3 is a connection relation diagram of the camera sensor of the present invention;
FIG. 4 is a connection diagram of the induction coil detector of the present invention;
fig. 5 is a schematic plan view of the present invention;
fig. 6 is a schematic view of the induction profile belt of the tunnel portal of the present invention.
Wherein: 1. a camera sensor; 2. an induction coil detector; 3. a controller; 4. an LED information board; 5. a profile band is sensed.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-6, the embodiment of the present invention is a traffic-based speed-limiting induction prompting system for variable tunnel entrance, which is applied to a highway tunnel entrance and comprises a camera sensor 1, an induction coil detector 2, a controller 3, an LED information board 4 and an induction contour band 5; the camera sensor 1 is used for identifying and detecting the flow of vehicles entering a tunnel within a certain distance, the induction coil detector 2 is used for detecting the running speed of the vehicles entering the tunnel within a certain distance, the LED information board 4 is used for outputting a speed limit value and a prompt, and the induction outline strip 5 is used for emitting warning light when traffic jam occurs; the controller 3 is connected with the camera sensor 1, the induction coil detector 2, the LED information board 4 and the induction outline band 5, so that data and information exchange among equipment is realized, received commands are decoded, and information output is realized through an interface. The application provides dynamic variable speed limit and sensing contour belt reflective information for the following two situations:
1. according to item 4.2.4 of the specification JTG D70/2-2014, which is the second volume of traffic engineering and auxiliary facilities in the design Specification of highway tunnels, the speed limit sign is preferably arranged at a position 100m-200m away from the entrance of the tunnel. If the traffic flow is larger in the period, the traffic demand of the road section is larger than the traffic volume which can be borne by the bottleneck road section, the detected traffic is congested, the controller processes and converts the acquisition of the vehicle information according to the camera sensor and the induction coil detector, then the information is transmitted to the control panel and the induction contour band, the control panel respectively displays the speed of 60Km/h, 40Km/h or 20Km/h according to the real-time condition of congestion, and reminds a driver to carry out 'cautious driving and attention to safety', the induction contour band starts flashing and reflecting red light at intervals, and the driver is reminded to slow down and move synchronously with the dynamic speed limit and the prompt.
2. If the traffic is small in the time period, the detected traffic is smooth, the vehicle can properly speed up, the controller processes and converts the acquisition of the vehicle information according to the camera sensor and the induction coil detector, then the information is transmitted to the control panel and the induction profile band, the control panel respectively displays the speed of 80Km/h or 100Km/h according to the traffic condition, and prompts a driver to 'safely pass' and the induction profile band does not work.
The controller 3 of the present application includes a power interface, a collected signal input register, a central processing unit, a memory, an information output register, and an information output interface. The Central Processing Unit (CPU) is the brain of the whole controller, vehicle information is collected through the camera sensor 1 and the induction coil detector 2 and is subjected to data processing and conversion, the collected signals are temporarily stored in the collected signal input register and are transmitted to the Central Processing Unit (CPU) for processing, system programs and data are stored in the memory at the moment, the information output register temporarily stores output information and outputs the information through the output interface, the LED information board 4 receives the information of the controller 3 and then converts the information into displayable prompt words and speed limit values, and the induction outline strip 5 controls light flicker after receiving the information of the controller 3.
The camera sensor 1 of the present application is established above the wall that enters the tunnel for a distance. The shot vehicle is transmitted to the inside of the lens, infrared light is filtered through the infrared filter, the infrared light is transmitted to the image sensor, an optical signal is converted into an electronic signal, an analog-to-digital converter in the sensor converts the electronic signal into a digital signal, data processing and processing are carried out through a digital signal processing chip, and finally the digital signal is output to the system controller 3.
The application discloses induction coil detector 2 buries underground in the road surface below of getting into a section distance in tunnel, induction coil detector 2 is the annular. The vehicle detector based on the electromagnetic induction principle is characterized in that an annular coil sensor senses the vehicle, a detection processing unit (a central processing unit and a detection card) calculates and processes acquired signals and outputs the acquired signals through a port, and when the inductance changes, data such as the existence, the running speed and the like of the vehicle can be detected and the signals are transmitted to a controller. When the detection card in the detector detects that the vehicle passes through or is still in the detection area of the induction coil, the inductance value passing through the induction coil is reduced, and a corresponding level is output through the change of the inductance value.
The LED information board 4 of the present application is arranged 100-200m away from the tunnel entrance. The speed limit of the driver entering the tunnel is prompted, and the real-time dynamic state of the tunnel in front of the driver is reminded by characters.
The induction outline strip 5 of the application is arranged on the induction outline strip of the whole tunnel portal and is provided with alternate twinkling light. The LED information board 4 is operated synchronously, and if the traffic is crowded, the red light with the reflective strips on the outline flickers alternately to remind a driver of driving in front.
The variable speed limit induction prompt system of the tunnel entrance based on the traffic volume has the following implementation method steps:
step 1: and detecting the number of vehicles running in a distance into the tunnel by adopting a camera sensor.
Step 2: the driving speed of the vehicle entering the tunnel for a certain distance is detected by adopting the induction coil detector, and data detected by the camera sensor are transmitted to the controller together.
And step 3: the controller starts to count the traffic flow entering the tunnel and the vehicle running speed, and the controller starts to perform parallel operation and perform signal and data processing.
And 4, step 4: after the controller finishes processing, the information is transmitted to the variable speed limiting information LED control panel and the induction contour band, the control panel displays speed and prompt words, and the induction contour band controls light to flicker and reflect light at intervals.
And 5: when the traffic volume is large and the tunnel starts to queue vehicles and jam, the speed of the vehicles is reduced before entering the tunnel entrance, the LED information board dynamically displays the speed limit, and reminds a driver to carefully drive and pay attention to safety, and the induction contour band starts flashing and reflecting red light at intervals; if the traffic volume is small and the traffic volume is free flow, the LED information board dynamically displays the speed limit and prompts a driver to 'safely pass' and the induction profile belt does not work.
This application is surveyed through this sectional vehicle quantity and speed through camera sensor and induction loop coil detector, makes data more accurate. The signal transmission who will gather is to the controller, handles and converts through the central processing unit of controller, with information output LED information board and response contour band, and the control panel shows speed limit and suggestion, responds to the contour band simultaneously and controls the red light alternate scintillation reflection of light condition, reminds the driver to pay attention to driving, slows down slowly. The method and the device can effectively solve the problem that the vehicle at the tunnel portal knocks into the rear or hits the wall, and reduce 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 (6)
1. The utility model provides a variable speed limit response reminder system in tunnel entry based on traffic volume, is applied to highway tunnel mouth department, its characterized in that: the system comprises a camera sensor, an induction coil detector, a controller, an LED information board and an induction outline strip;
the camera sensor is used for identifying and detecting the traffic flow entering the tunnel within a certain distance, the induction coil detector is used for detecting the running speed of the vehicle entering the tunnel within a certain distance, the LED information board is used for outputting a speed limit value and a prompt, and the induction outline strip is used for emitting warning light when traffic jam occurs;
the controller is connected with the camera sensor, the induction coil detector, the LED information board and the induction outline band, so that data and information exchange among equipment is realized, received commands are decoded, and information output is realized through an interface.
2. The traffic-based tunnel entrance variable speed-limit induction prompt system according to claim 1, characterized in that: the controller comprises a power interface, a collected signal input register, a central processing unit, a memory, an information output register and an information output interface.
3. The traffic-based tunnel entrance variable speed-limit induction prompt system according to claim 1, characterized in that: the camera sensor is arranged above a wall which enters the tunnel for a certain distance.
4. The traffic-based tunnel entrance variable speed-limit induction prompt system according to claim 1, characterized in that: the induction coil detector is buried under a road surface which enters a tunnel for a certain distance, and is annular.
5. The traffic-based tunnel entrance variable speed-limit induction prompt system according to claim 1, characterized in that: the LED information board is arranged at a position 100-200m away from the front of the tunnel opening.
6. The traffic-based tunnel entrance variable speed-limit induction prompt system according to claim 1, characterized in that: the induction outline band is arranged on the induction outline band of the whole tunnel portal and is provided with alternate twinkling lights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021772848.3U CN212724331U (en) | 2020-08-24 | 2020-08-24 | Variable speed limit induction prompt system of tunnel entry based on traffic volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021772848.3U CN212724331U (en) | 2020-08-24 | 2020-08-24 | Variable speed limit induction prompt system of tunnel entry based on traffic volume |
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| CN212724331U true CN212724331U (en) | 2021-03-16 |
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| CN202021772848.3U Expired - Fee Related CN212724331U (en) | 2020-08-24 | 2020-08-24 | Variable speed limit induction prompt system of tunnel entry based on traffic volume |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114694383A (en) * | 2022-04-29 | 2022-07-01 | 诠航科技有限公司 | Vehicle warning method, device and system of tunnel contour light system |
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2020
- 2020-08-24 CN CN202021772848.3U patent/CN212724331U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114694383A (en) * | 2022-04-29 | 2022-07-01 | 诠航科技有限公司 | Vehicle warning method, device and system of tunnel contour light system |
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