Tunnel emergency parking belt intelligent early warning system

Abstract

The utility model belongs to traffic early warning technical field, concretely relates to a kind of tunnel emergency parking strip intelligent early warning system, including including tunnel, emergency parking strip, vehicle detection module, lighting control module, data transmission module, vehicle prompt module, video acquisition module and monitoring center module;The vehicle detection module includes several wireless geomagnetic sensors;The lighting control module includes main control unit, always-on lighting group and light supplementing lighting group;The data transmission module includes PLC controller and industrial communication module, the video acquisition module is used to collect emergency parking strip video picture;The vehicle prompt module includes entrance warning module;The monitoring center module includes intelligent monitoring platform and display terminal, and the scheme improves the visibility, security and management efficiency of emergency parking strip in tunnel.

Description

Technical Field

[0001] This utility model belongs to the field of traffic early warning technology, and more specifically, it relates to an intelligent early warning system for emergency parking lanes in tunnels. Background Technology

[0002] With the continuous increase in the total mileage of highways, the volume of passenger and freight traffic is also increasing. The number and mileage of highway tunnels are also gradually increasing every year. However, the environment of highway tunnels is relatively complex, and the vehicle failure rate and emergencies are also increasing sharply. Generally, highway tunnel design specifications stipulate that emergency stopping lanes should only be set on the right side of the driving direction in long and extra-long tunnels, which are temporary stopping areas reserved for vehicles that break down in the tunnel or for handling emergencies.

[0003] In highway tunnel environments, limited internal lighting and lack of natural light severely restrict drivers' visibility, making it difficult to promptly and accurately identify the location and usage status of emergency stopping lanes. This is especially problematic when vehicles break down and need to stop urgently, as following vehicles often fail to anticipate the lane's occupancy, increasing the risk of rear-end collisions or secondary accidents. Furthermore, existing tunnel monitoring systems rely heavily on conventional lighting with fixed illumination levels for video capture. Under low-light conditions, video clarity is insufficient, and detail identification is difficult, hindering the accurate assessment and remote monitoring of vehicle status within the stopping lanes. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an intelligent early warning system for tunnel emergency parking lanes. This system is a comprehensive solution that enables intelligent perception of the emergency parking lane status, dynamic lighting control, multimodal early warning prompts, and high-definition video linkage, thereby improving the visibility, safety, and management efficiency of emergency parking lanes within tunnels.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A smart early warning system for tunnel emergency parking lanes includes a tunnel and an emergency parking lane installed within the tunnel, and further includes:

[0007] Vehicle detection module, lighting control module, data transmission module, vehicle alert module, video acquisition module, and monitoring center module;

[0008] The vehicle detection module includes several wireless geomagnetic sensors. These sensors are buried at intervals below the ground of the emergency parking lane along its length. They are used to collect the sensing signals of vehicles in the emergency parking lane and transmit the sensing signals synchronously to the lighting control module and the data transmission module.

[0009] The lighting control module includes a main controller, a constant lighting group, and a supplementary lighting group. The wireless geomagnetic sensor, the constant lighting group, and the supplementary lighting group are all electrically connected to the main controller. The main controller controls the opening and closing of the supplementary lighting group according to the sensing signal.

[0010] The data transmission module includes a PLC controller and an industrial communication module. The input terminal of the PLC controller is connected to a wireless geomagnetic sensor, and the output terminal of the PLC controller is connected to a tunnel communication network through the industrial communication module.

[0011] The video acquisition module is used to acquire video footage of the emergency parking lane; the video acquisition module is electrically connected to the industrial communication module and is used to transmit the video footage of the emergency parking lane to the data transmission module.

[0012] The vehicle warning module includes an entrance warning module, which is electrically connected to the PLC controller. The entrance warning module is located above the entrance of the emergency parking lane, and the PLC controller controls the opening and closing of the entrance warning module according to the sensing signal.

[0013] The monitoring center module includes an intelligent monitoring platform and a display terminal. The intelligent monitoring platform receives the sensing signals transmitted by the PLC controller and the video images of the emergency parking lane through the tunnel communication network. The display terminal is used to display the video images of the emergency parking lane.

[0014] Furthermore, three wireless geomagnetic sensors are provided and distributed in the front parking area, the middle area of ​​the vehicle body, and the rear parking area of ​​the corresponding emergency parking lane. The wireless geomagnetic sensors are buried under the ground of the emergency parking lane.

[0015] Furthermore, the constant lighting group includes several constant lighting fixtures, and the supplementary lighting group includes several supplementary lighting fixtures. The several constant lighting fixtures are arrayed and installed on the inner side wall of the emergency parking lane along the length of the emergency parking lane. The array of several supplementary lighting fixtures is distributed at the intervals between adjacent constant lighting fixtures in the constant lighting group and is flush with the installation height of the constant lighting group.

[0016] Furthermore, the video acquisition module includes at least one camera, which is installed on the inner wall of the emergency parking lane to capture video footage of the emergency parking lane.

[0017] Furthermore, the entrance warning module includes a warning light and a voice prompt, both of which are electrically connected to the PLC controller and are installed on the side wall at the entrance of the emergency parking lane.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention triggers the supplementary lighting system when a vehicle is parked in an emergency parking lane, ensuring that all parked vehicles receive sufficient lighting immediately. This eliminates safety hazards such as personnel bumping into each other or operational errors caused by insufficient light, and creates a safe local environment for troubleshooting.

[0020] The system employs a tiered lighting control system, which uses a constant-on lighting group to provide basic outline lighting and a supplementary lighting group to provide structural lighting for work tasks. When there are no vehicles, it maintains only the minimum energy-consuming outline lighting, resulting in significant energy savings. Based on a highly reliable wireless geomagnetic sensor, it achieves precise automatic control, avoids ineffective lighting periods, and realizes on-demand energy allocation and maximum energy conservation.

[0021] By combining the intelligent monitoring platform and display terminal in the monitoring center module, abstract alarm signals are transformed into specific information with clear spatial positioning and intuitive on-site images, enabling rapid response to event monitoring and greatly improving emergency response efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an intelligent early warning system for emergency parking lanes in tunnels, according to this utility model.

[0023] Figure 2 This is a partial cross-sectional view of an intelligent early warning system for emergency parking lanes in tunnels, according to this utility model.

[0024] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0025] 1. Tunnel; 2. Emergency parking lane; 3. Wireless geomagnetic sensor; 4. Constantly lit lights; 5. Supplemental lighting; 6. First camera; 7. Second camera; 8. Warning lights; 9. Voice prompter. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1:

[0030] As attached Figure 1 To be continued Figure 2 As shown:

[0031] This utility model provides an intelligent early warning system for tunnel emergency parking lanes, including a tunnel 1 and an emergency parking lane 2 installed in the tunnel 1, and further including:

[0032] Vehicle detection module, lighting control module, data transmission module, vehicle alert module, video acquisition module, and monitoring center module;

[0033] The vehicle detection module includes several wireless geomagnetic sensors 3. These wireless geomagnetic sensors 3 are buried at intervals below the ground of the emergency parking lane 2 along the length of the emergency parking lane 2. They are used to collect the sensing signals of vehicles in the emergency parking lane 2, that is, to collect the sensing signals of vehicles entering, parking and leaving the emergency parking lane 2, and to transmit the sensing signals synchronously to the lighting control module and the data transmission module.

[0034] The lighting control module includes a main controller, a constant lighting group, and a supplementary lighting group. The wireless geomagnetic sensor 3, the constant lighting group, and the supplementary lighting group are all electrically connected to the main controller. The main controller controls the opening and closing of the supplementary lighting group according to the sensing signal.

[0035] The data transmission module includes a PLC controller and an industrial communication module. The input terminal of the PLC controller is connected to the wireless geomagnetic sensor 3, and the output terminal of the PLC controller is connected to the communication network of tunnel 1 through the industrial communication module.

[0036] The video acquisition module is used to acquire video footage from emergency parking lane 2; the video acquisition module is electrically connected to the industrial communication module and is used to transmit the video footage from emergency parking lane 2 to the data transmission module;

[0037] The vehicle warning module includes an entrance warning module and is electrically connected to the PLC controller; the entrance warning module is located above the entrance of the emergency parking lane 2, and the PLC controller controls the opening and closing of the entrance warning module according to the sensing signal;

[0038] The monitoring center module includes an intelligent monitoring platform and a display terminal. The intelligent monitoring platform receives the sensing signals transmitted by the PLC controller and the video images of the emergency parking lane 2 through the communication network of tunnel 1. The display terminal is used to display the video images of the emergency parking lane 2.

[0039] In this embodiment, the PLC controller adopts the Siemens S7-1200 series, receives the signal from the wireless geomagnetic sensor 3 and processes the data, and connects to the dedicated optical fiber communication network of tunnel 1 through the industrial communication module using a gigabit industrial Ethernet switch, so as to transmit the vehicle parking information to the monitoring center in real time.

[0040] The intelligent monitoring platform in the monitoring center module is the Hikvision iVMS-8700, with a built-in image association plugin; the display terminal is a 46-inch video wall, which is connected to the platform via an HDMI interface. Based on the sensing signals, the intelligent monitoring platform visually warns the location of emergency parking lane 2, the source of the sensing signals, on the electronic map layer of the intelligent monitoring platform. At the same time, the intelligent monitoring platform switches and displays the video feeds from the monitoring cameras associated with emergency parking lane 2 in a designated area of ​​the video wall, allowing monitoring personnel to monitor the situation on site in real time.

[0041] In the system, the STM32 main controller of the lighting control module is responsible for local, real-time lighting linkage control; while the PLC controller of the data transmission module acts as a data aggregation node, responsible for collecting the status of each sensor and transmitting it remotely through the industrial network.

[0042] As a preferred embodiment, three wireless geomagnetic sensors 3 are provided and distributed in the front parking area, the middle area of ​​the vehicle body and the rear parking area of ​​the corresponding emergency parking lane 2. The wireless geomagnetic sensors 3 are buried under the ground of the emergency parking lane 2.

[0043] In this embodiment, the emergency parking lane 2 includes a front parking area, a middle parking area, and a rear parking area. The vehicle detection module is equipped with three wireless geomagnetic sensors 3, all model TMR2201, which are buried below the ground in the front, middle, and rear parking areas of the emergency parking lane 2, respectively, ensuring complete coverage of the vehicle parking area. The wireless geomagnetic sensors 3 are encased in a nickel alloy anti-interference shell to prevent metal components inside the tunnel 1 from affecting detection accuracy. Their working principle is based on the magnetoresistive effect; the internal magnetoresistive element detects the geomagnetic field strength in real time. When a vehicle enters, the metal body causes a change in the local geomagnetic field, and the wireless geomagnetic sensor 3 outputs a signal indicating the vehicle's presence. After the vehicle leaves, the magnetic field returns to its initial state, and the sensor outputs a vehicle departure signal.

[0044] As a preferred embodiment, the constant lighting group includes several constant lighting fixtures 4, and the supplementary lighting group includes several supplementary lighting fixtures 5. The several constant lighting fixtures 4 are arrayed and installed on the inner side wall of the emergency parking lane 2 along the length direction of the emergency parking lane 2, and the several supplementary lighting fixtures 5 are arrayed and distributed at the intervals between adjacent constant lighting fixtures 4 in the constant lighting group, and are flush with the installation height of the constant lighting group.

[0045] In this embodiment, the main controller uses an STM32 series microcontroller, which is electrically connected to the wireless geomagnetic sensor 3 to receive the output induction signal and control the lighting fixtures. The constant-on lighting group includes four constant-on LED lights, arrayed along the inner wall of the emergency parking lane 2, ensuring that the parking lane outline is only drawn by this group of lights when there are no vehicles, meeting basic lighting requirements. The installation height is ≥2.5m (higher than the top of a conventional car). The supplementary lighting group includes five supplementary LED lights, arrayed at the intervals between the four constant-on LED lights, flush with the height of the four constant-on LED lights, forming a uniform lighting array. These are activated by the main controller when a vehicle is present, eliminating blind spots. The lighting control module also includes a manual switch, which is located on the inner wall of the emergency parking lane 2 and embedded in the lane. A prominent location on the side wall, 1.6-1.8m away, features a manual switch marked "Automatic / Forced Constant On," which can force the supplementary lighting group to turn on in case of emergencies such as sensor failure. Specifically, the manual switch is a mechanical self-locking switch, with its output contacts directly connected in series in the power supply circuit of the supplementary lighting group, forming a hard-wired path independent of the main controller's automatic control logic. This ensures that the supplementary lighting group can still be forcibly lit even if the main controller fails. The output signal of the manual switch takes precedence over the automatic control signal of the main controller. When the manual switch is triggered, the supplementary lighting group remains on until the manual switch is deactivated.

[0046] As a preferred embodiment, the video acquisition module includes at least one camera, which is installed on the inner wall of the emergency parking lane 2, for acquiring video footage of the emergency parking lane 2.

[0047] In this embodiment, the video acquisition module includes a first camera 6 and a second camera 7. The first camera 6 is a wide-angle camera, installed on the side wall of the entrance to the emergency parking lane 2, to cover the entire parking lane. The second camera 7 is a zoom camera, installed inside the parking lane to focus on the details of parked vehicles. This configuration eliminates blind spots and improves the accuracy of event detection through cross-verification of multi-view images. In this embodiment, the output of the video acquisition module is connected to the dedicated video transmission network of tunnel 1 and interconnected with the data transmission module through a network interface, thereby transmitting the video footage of the emergency parking lane 2 to the monitoring center module.

[0048] As a preferred embodiment, the entrance warning module includes a warning light 8 and a voice prompt 9, both of which are electrically connected to a PLC controller and are located on the side wall at the entrance of the emergency parking lane 2.

[0049] In this embodiment, both the warning light 8 and the voice prompt 9 are triggered and controlled by the PLC controller based on the sensing signal from the vehicle detection module. The warning light 8 is a red-green dual-color flashing LED warning light 8, which has a state switching function. When the wireless geomagnetic sensor 3 outputs a no-vehicle signal, the PLC controller controls it to be in a green light constant-on state, conveying the prompt "parking lane is available" to subsequent vehicles. When a vehicle signal is detected, it immediately switches to red light flashing mode (flash frequency 1.5-2 times / second), and at the same time triggers the voice prompt 9 to play a warning voice in a loop, realizing a dual warning of visual and auditory perception. The voice prompt 9 is only activated when a vehicle is parked, playing the voice prompt "There is a vehicle in emergency parking lane 2, please give way" in a loop.

[0050] The vehicle warning module also includes a lane warning module located 50-100m to the side of the driving lane of Tunnel 1 corresponding to the parking lane. It uses a high-brightness variable information sign. When there is no vehicle, it displays "Emergency Parking Lane 2 is available". When there is a vehicle, it automatically switches to display "Parking lane ahead is occupied, slow down and give way" to remind vehicles behind to prepare to slow down and give way in advance.

[0051] The working principle of this solution is as follows:

[0052] When there is no vehicle, the three wireless geomagnetic sensors 3 detect that the geomagnetic field is stable and output a no-vehicle signal. The lighting control module only keeps the constant lighting group working and the supplementary lighting group is turned off. In the vehicle prompt module, the red and green dual-color LED warning light 8 of the entrance warning module is green (constantly on), the lane prompt module displays "Emergency parking lane 2 is vacant", the voice prompt 9 is on standby, and the monitoring center module is in standby mode to achieve energy saving.

[0053] When a vehicle enters the emergency parking lane 2, the front of the vehicle triggers the wireless geomagnetic sensor 3 in the rear parking area. The wireless geomagnetic sensor 3 in the rear parking area detects the change in the magnetic field and outputs a sensing signal indicating that the vehicle has entered. After receiving the sensing signal, the main controller first controls several supplementary lighting lamps 5 of the supplementary lighting group to turn on gradually. At the same time, the PLC controller transmits the vehicle entry information to the monitoring center and the vehicle prompting module through the communication module. The entrance warning module and the lane prompting module of the vehicle prompting module are activated synchronously to issue avoidance prompts to passing vehicles.

[0054] When the vehicle is parked, after it has come to a complete stop, all three wireless geomagnetic sensors 3 output a signal indicating the presence of the vehicle. The main controller keeps several supplementary lighting fixtures 5 constantly lit. The monitoring center platform continuously displays the warning signs and video footage within the emergency parking lane 2, allowing monitoring personnel to confirm the vehicle's status through the video.

[0055] When the vehicle departs, the three wireless geomagnetic sensors 3 sequentially restore the vehicle-free signal, the magnetic field returns to its initial state, the main controller controls the supplementary lighting group to turn off after a 30-second delay to prevent the vehicle from temporarily reversing, at the same time the PLC controller transmits the vehicle departure information, the vehicle prompt module stops working, the warning sign in the monitoring center turns gray, and the duration of this stop is recorded.

[0056] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An intelligent early warning system for tunnel emergency parking lanes, comprising a tunnel and an emergency parking lane installed within the tunnel, characterized in that, Also includes: Vehicle detection module, lighting control module, data transmission module, vehicle alert module, video acquisition module, and monitoring center module; The vehicle detection module includes several wireless geomagnetic sensors. These sensors are buried at intervals below the ground of the emergency parking lane along its length. They are used to collect the sensing signals of vehicles in the emergency parking lane and transmit the sensing signals synchronously to the lighting control module and the data transmission module. The lighting control module includes a main controller, a constant lighting group, and a supplementary lighting group. The wireless geomagnetic sensor, the constant lighting group, and the supplementary lighting group are all electrically connected to the main controller. The main controller controls the opening and closing of the supplementary lighting group according to the sensing signal. The data transmission module includes a PLC controller and an industrial communication module. The input terminal of the PLC controller is connected to a wireless geomagnetic sensor, and the output terminal of the PLC controller is connected to a tunnel communication network through the industrial communication module. The video acquisition module is used to acquire video footage of the emergency parking lane; the video acquisition module is electrically connected to the industrial communication module and is used to transmit the video footage of the emergency parking lane to the data transmission module. The vehicle warning module includes an entrance warning module, which is electrically connected to the PLC controller. The entrance warning module is located above the entrance of the emergency parking lane, and the PLC controller controls the opening and closing of the entrance warning module according to the sensing signal. The monitoring center module includes an intelligent monitoring platform and a display terminal. The intelligent monitoring platform receives the sensing signals transmitted by the PLC controller and the video images of the emergency parking lane through the tunnel communication network. The display terminal is used to display the video images of the emergency parking lane.

2. The intelligent early warning system for tunnel emergency parking lanes as described in claim 1, characterized in that: Three wireless geomagnetic sensors are installed and distributed in the front parking area, middle area and rear parking area of ​​the corresponding emergency parking lane. The wireless geomagnetic sensors are buried under the ground of the emergency parking lane.

3. The intelligent early warning system for tunnel emergency parking lanes as described in claim 1, characterized in that: The constant lighting group includes several constant lighting fixtures, and the supplementary lighting group includes several supplementary lighting fixtures. The several constant lighting fixtures are arrayed and installed on the inner side wall of the emergency parking lane along the length of the emergency parking lane. The array of several supplementary lighting fixtures is distributed at the intervals between adjacent constant lighting fixtures in the constant lighting group and is flush with the installation height of the constant lighting group.

4. The intelligent early warning system for tunnel emergency parking lanes as described in claim 1, characterized in that: The video acquisition module includes at least one camera, which is installed on the inner wall of the emergency parking lane to capture video footage of the emergency parking lane.

5. The intelligent early warning system for tunnel emergency parking lanes as described in claim 1, characterized in that: The entrance warning module includes a warning light and a voice prompt, both of which are electrically connected to the PLC controller and are installed on the side wall at the entrance of the emergency parking lane.

Images