A high-speed tunnel portal soft blocking security arrangement

Abstract

The utility model provides a kind of high-speed tunnel mouth soft blocking security control device, including inflatable security control device, audible alarm, tunnel smooth security code and variable information board, inflatable security control device is several and is set towards the direction of tunnel mouth outside tunnel, inflatable security control device includes air blower and security control bag, air blower is connected with the guardrail vertical rod of tunnel by bearing plate, security control bag is connected with the output end of air blower, audible alarm is interval set on the inner wall of left and right sides of tunnel along tunnel direction of travel, variable information board is set at tunnel entrance, tunnel smooth security code is interval pasted on the inner wall of left and right sides of tunnel along tunnel direction of travel, the utility model realizes tunnel security control by the combination of air blower and security control bag, can be blown full and security control to predetermined position in short time, avoid causing vehicle secondary accident, and introduce tunnel smooth security code, and it is pasted on tunnel wall, passive positioning can be replaced for active alarm by tunnel smooth security code, greatly improve security control efficiency, effectively avoid secondary accident caused by other vehicles entering.

Description

Technical Field

[0001] This utility model relates to the field of tunnel safety equipment technology, and in particular to a soft barrier safety control device for high-speed tunnel entrances. Background Technology

[0002] Currently, vehicle accident control in highway tunnels mainly relies on manual methods. The time required from spotting a stopped vehicle to setting up cones from the tunnel entrance to the accident vehicle's location is considerable, significantly increasing the risk of secondary accidents.

[0003] To address this issue, existing technologies use mechanical extension to create barriers for control purposes. However, most extension control devices employ mechanical structures. On one hand, these devices are large and heavy, limiting their installation location. For example, extension control devices inside high-speed tunnels need to be installed on the edge of the maintenance lane, while those outside the tunnel need to be installed below the corrugated guardrail. This may not be suitable for the structural characteristics of different high-speed tunnels. On the other hand, the length and swing angle of the extension rod are fixed, making it difficult to flexibly adjust the control range and shape according to actual control needs. In complex tunnel environments, this may prevent precise control.

[0004] In addition, existing tunnel safety control devices mainly rely on vehicle positioning devices to be set up at intervals along the direction of travel in the high-speed tunnel to detect the location of accident vehicles. This method is somewhat passive. Once the positioning device malfunctions or the accident vehicle is in the blind spot of the positioning device, the accident may not be detected in time, affecting the timeliness of the control. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides a soft barrier safety control device for high-speed tunnel entrances. On the one hand, it uses a combination of a blower and a control bag to achieve tunnel safety control, which can fill the control bag and control it to the predetermined position in a short time, avoiding secondary accidents to vehicles. On the other hand, this utility model introduces a tunnel safety code and affixes it to the tunnel wall. Through the tunnel safety code, the passive location of vehicle accidents can be replaced by an active alarm.

[0006] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions: A safety control device for soft barriers at the entrance of a high-speed tunnel includes an inflatable control device, an audible and visual alarm, a tunnel access code, and a variable message sign. Several inflatable control devices are arranged on the outside of the tunnel facing the tunnel entrance. Each inflatable control device includes a blower and a control bag. The blower is connected to the tunnel guardrail posts via a support plate, and the control bag is connected to the output end of the blower. The audible and visual alarms are spaced apart on the inner walls of the left and right sides of the tunnel along the tunnel's direction of travel. The variable message sign is located at the tunnel entrance, and the tunnel access codes are spaced apart on the inner walls of the left and right sides of the tunnel along the tunnel's direction of travel.

[0007] Furthermore, the support plate is mounted on the guardrail post and the two are fixedly connected at a 90-degree angle.

[0008] Furthermore, the blower is connected to the support plate via a fixed bracket.

[0009] Furthermore, the inflatable control device also includes a reflective film, which is affixed to the outer surface of the control bag.

[0010] Furthermore, the inflatable control device also includes a strobe device, which is disposed around the control bag.

[0011] Furthermore, the strobe device is composed of LED light strips.

[0012] Furthermore, the tunnel access code is in the form of a QR code.

[0013] Furthermore, the control bag is also equipped with an exhaust device, which consists of an exhaust channel and an exhaust plug. The exhaust channel is located on the upper surface of the control bag at the end away from the blower. The exhaust channel and the control bag are an integrated structure and protrude outward by a certain distance. The end of the exhaust channel that exhausts air outward is sealed by the exhaust plug.

[0014] Furthermore, it also includes an IoT back-end controller, an inflatable deployment device, an audible and visual alarm, a tunnel access code, and a variable message sign, all of which are connected to or communicate with the IoT back-end controller.

[0015] Compared with the prior art, this utility model has at least the following advantages and beneficial effects: 1. This utility model uses a combination of a blower and a control bag to control safety in the tunnel. The control bag is made of materials such as nylon and has the characteristics of low elasticity and fixed length. It can be quickly inflated by a high-power blower, which can fill the control bag in a short time and deploy it to the predetermined position to control the lane where the accident vehicle is located, so as to prevent other vehicles from entering and causing secondary accidents.

[0016] 2. This utility model introduces a tunnel safety code, which is affixed to the tunnel wall. When a vehicle accident occurs in the tunnel, the vehicle's location in the tunnel can be accurately located by scanning the tunnel safety code. This method changes passive positioning to active alarm, avoiding delays in accident detection caused by positioning device failure or blind spots.

[0017] 3. Several guidance transition zones are set up along the tunnel travel direction. The extension distance of the control bag of the inflatable control device in each guidance transition zone gradually increases. The length of the control bag in each guidance transition zone is linked to the width of the tunnel lane. The number of guidance transition zones is the same as the actual number of tunnel lanes. The inflatable control device of different guidance transition zones can be activated according to the lane where the accident occurred. This allows for more scientific and reasonable control of traffic accidents in the tunnel, improving the effectiveness and safety of the control.

[0018] 4. The outer surface of the control bag is covered with a Class V reflective film, which has good reflectivity at night. The strobe device is composed of LED light strips and sewn onto the control bag, further enhancing the warning effect of the control system.

[0019] Advantages of the present invention in additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram of the inflation control device of this utility model; Figure 2 This is a detailed structural drawing of the control bag (in unfolded state) of the inflatable control device of this utility model; Figure 3 This is a detailed overall layout diagram of the variable message sign, tunnel safety code, audible and visual alarm, and inflatable control device of this utility model. Figure 4 This is a diagram showing the positional relationship between the guardrail posts and the control bag of this utility model; Figure 5 This is a schematic diagram of the exhaust device of this utility model; Figure 6 This is a detailed diagram showing the distribution of the guide transition zone when the present invention uses a two-way six-lane road. Figure 7 This is a detailed diagram showing the distribution of the guide transition zone when the present invention uses a two-way four-lane road. The components include: 1. Blower; 2. Control bag; 3. Reflective film; 4. Flashing device; 5. Support plate; 6. Guardrail post; 7. Exhaust plug; 8. Audible and visual alarm; 9. Variable message sign; 10. Curbstone; 11. Tunnel safety gate; 12. Roadbed; 13. Guardrail panel; 14. Fixed bracket; 15. Exhaust channel; 16. First guidance transition zone; 17. Second guidance transition zone; 18. Third guidance transition zone; 19. Fourth guidance transition zone; 20. Fifth guidance transition zone; 21. Exhaust device; 22. Guiding transition zone; 23. Emergency lane; 24. Central divider. Detailed Implementation

[0022] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention.

[0023] Where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] Example 1: like Figures 1 to 7 As shown, this embodiment provides a safety control device for soft barriers at the entrance of a high-speed tunnel, including an inflatable control device, an audible and visual alarm 8, a tunnel access code 11, and a variable message sign 9. Several inflatable control devices are arranged on the outside of the tunnel facing the tunnel entrance. Each inflatable control device includes a blower 1 and a control bag 2. The blower is connected to the tunnel guardrail pole 6 via a support plate 5. The control bag 2 is connected to the output end of the blower 1. The audible and visual alarm 8 is spaced out on the inner walls of the left and right sides of the tunnel along the tunnel's travel direction. The variable message sign 9 is located at the tunnel entrance. The tunnel access code 11 is spaced out on the inner walls of the left and right sides of the tunnel along the tunnel's travel direction.

[0025] like Figure 3 As shown, in order to allow vehicles located outside the tunnel to have a clearer understanding of the specific details of a vehicle safety accident occurring inside the tunnel, this embodiment has an inflatable control device and a variable message sign 9 installed sequentially from the tunnel entrance outwards on the outside of the tunnel. The variable message sign 9 uses a full-color LED display screen and is installed directly above the tunnel entrance. It can update the displayed content in real time. The variable message sign can display information such as "Accident inside the tunnel, lane ×× closed" to inform drivers and passengers who have not entered the tunnel about the situation inside the tunnel.

[0026] like Figure 1 and Figure 2As shown, the inflatable control device in this embodiment is fixed on the guardrail post of the tunnel. Here, the tunnel refers to the tunnel of the highway. For the sake of vehicle and personal safety, guardrails and guardrail posts are installed on both sides of the highway near the emergency lane 23 and the central divider 24.

[0027] The guardrail post 6 is set on the roadbed and close to the curbstone 10. Its lower part is fixed through the roadbed 12 to a certain depth. The upper part is connected to the guardrail plate 13 on the side close to the curbstone 10. The side of the guardrail post 6 away from the curbstone is set with a support plate 5. The support plate is fixedly set on the guardrail post and the two are fixedly connected at 90 degrees. The plane of the support plate is horizontally arranged and several fixed brackets 14 are set on its upper surface. Adjacent guardrail posts are connected to the support plate through the guardrail plate. The blower 1 is connected to the support plate 5 through the fixed brackets 14. The air bag is connected to the air output port of the blower. The air bag is made of high-strength nylon fabric. Each air bag has little elasticity. When the air bag is not inflated, it will be placed on the upper surface of the support plate. As the blower continuously supplies air to the air bag, the air bag will continuously expand and rise. This process is similar to the principle of an inflatable arch. When the air bag is full of air, it will be parallel to the support plate and perpendicular to the guardrail post.

[0028] The blower, audible and visual alarm device, and control bag in this embodiment all fall within the scope of existing technology. The appropriate type of device can be selected according to actual needs, as long as it meets the actual functional requirements.

[0029] In order to better provide safety warnings to drivers in the tunnel, the inflatable deployment device in this embodiment also includes a reflective film 3, which is affixed to the outer surface of the deployment bag.

[0030] Specifically, reflective film 3 is installed on the inflatable tunnel facing the vehicle. It is attached with pressure-sensitive adhesive and the edges are sealed with waterproof tape. The reflective film is a Class V reflective film, and the placement of the Class V reflective film corresponds to the driver's line of sight. This position corresponds to the driver's line of sight when in a normal sitting posture (1.2-1.5 meters from the ground). This ensures the reflective effect at night. Since the tunnel lights are always on, even if a car accident occurs in the tunnel at night, the reflective effect of the reflective film can alert drivers of vehicles behind to the accident ahead, effectively preventing secondary accidents.

[0031] The inflatable control device also includes a strobe device 4, which is located around the control bag. The strobe device and the reflective film are independent of each other and their positions do not conflict. Specifically, the strobe device 4 is composed of LED light strips, which are sewn along the edge of the control bag to form a rectangular frame. In this embodiment, the opening and closing of the strobe device is controlled by the blower status, and its opening and closing status is consistent with the blower's opening and closing status. The LED light strip is connected in parallel with the blower's power line through a waterproof connector, so that its opening and closing status can be synchronously controlled by the blower's power switch. When the blower is started, the LED light strip flashes at a frequency of 1 time per second, emitting a strong red light.

[0032] On the one hand, since the strobe device is sewn around the perimeter of the control bag, this installation method is relatively flexible and will not fundamentally change the material and structure of the control bag itself. The control bag can still be folded according to its original design. On the other hand, the strobe device in this embodiment is composed of LED light strips. The LED light strips themselves have a certain degree of flexibility. When the control bag is folded, the light strips can bend along with the folding of the control bag without creating any rigid obstruction. In the design scheme of this embodiment, the strobe device is set to enhance the warning effect, while also taking into account the normal use and storage of the control bag. Therefore, when installing the strobe device, an appropriate position and method will be selected to ensure that it will not adversely affect the folding function of the control bag.

[0033] When a traffic accident occurs in the tunnel, it is necessary to provide timely safety warnings to drivers behind the accident vehicle. Therefore, in this embodiment, audible and visual alarms are installed at intervals on the inner walls of the left and right sides of the tunnel along the tunnel travel direction. The audible and visual alarms use a 100dB buzzer and a red strobe light, and the flashing frequency of the strobe light is set to 2 times / second.

[0034] When an accident occurs in a tunnel, it is not only necessary to provide safety warnings to drivers of vehicles entering the tunnel, but also to promptly control the lanes occupied by the accident vehicles inside the tunnel. Therefore, in order to better determine the accurate location of the accident vehicles inside the tunnel, the tunnel safety code in this embodiment adopts the form of a QR code. The tunnel safety code is made of waterproof and sun-proof PVC material, with a size of 30cm×30cm. The tunnel safety code is alternately affixed along the inner walls of the left and right sides of the tunnel at 10-meter intervals, with a height of 1.4 meters from the ground. Drivers and passengers can scan the code to upload and input information such as the location of the vehicle occupying the lane.

[0035] Specifically, the QR code technology uses the QR code system with an error correction level of H. The encoded content includes the tunnel number, current location coordinates (preset via QR code location information), and a link to the alarm type selection interface. When a vehicle is involved in an accident or malfunction in the tunnel, the driver of the vehicle can scan the tunnel safety code on the tunnel wall to submit relevant data information about the vehicle based on the situation. This data includes: accident type options (such as vehicle malfunction, rear-end collision, minor collision, etc.), lane selection (left lane, middle lane, right lane, emergency lane), and photos of the accident scene. Using QR codes to upload accident vehicle location information and scene information is easily achievable with existing technology.

[0036] To further enable vehicles entering the tunnel to change lanes normally and avoid traffic accidents ahead, and to achieve the purpose of gradual guidance, this embodiment also sets up several guidance transition zones 22 facing the tunnel entrance. The extension distance of the control bag of the inflatable control device in each guidance transition zone gradually increases. The length of the control bag in each guidance transition zone is linked to the width of the tunnel lanes, and the number of guidance transition zones is the same as the actual number of tunnel lanes.

[0037] like Figure 6 As shown, when the tunnel uses a two-way six-lane system, the number of guidance transition zones is set to three, which are named as the first guidance transition zone 16, the second guidance transition zone 17, and the third guidance transition zone 18 in the direction of the tunnel entrance. In this embodiment, they are named as the first lane, the second lane, and the third lane in the direction of vehicle travel from right to left.

[0038] The first guidance transition zone 16 corresponds to the first lane. The inflatable control device of the first guidance transition zone is only installed on the tunnel guardrail near the emergency lane. The inflatable control device is not installed on the guardrail of the central divider. The control bag of the first guidance transition zone 16 closest to the tunnel entrance can extend to the far left of the first lane after inflation.

[0039] The second guidance transition zone 17 corresponds to the second lane. The inflatable control device in the second guidance transition zone is only installed on the tunnel guardrail near the central divider. The inflatable control device is not installed on the guardrail of the emergency lane. The control bag closest to the tunnel entrance in the second guidance transition zone can extend to the far right of the second lane after inflation.

[0040] The third guidance transition zone 18 corresponds to the third lane. The inflatable control device in the third guidance transition zone is only installed on the tunnel guardrail near the central divider. The inflatable control device is not installed on the guardrail of the emergency lane. The control bag closest to the tunnel entrance in the third guidance transition zone can extend to the far right of the third lane after inflation.

[0041] like Figure 7As shown, when the tunnel uses a two-way four-lane configuration, the number of guidance transition zones is set to two. There are a fourth guidance transition zone 19 and a fifth guidance transition zone 20 facing the tunnel entrance. Here, the fourth guidance transition zone 19 is equivalent to the first guidance transition zone, and the fifth guidance transition zone 20 is equivalent to the third guidance transition zone.

[0042] When a traffic accident occurs in the first lane of a highway tunnel, only the first guiding transition zone needs to be opened; when a traffic accident occurs in the second lane of a highway tunnel, only the second guiding transition zone needs to be opened; and when a traffic accident occurs in the third lane of a highway tunnel, only the third guiding transition zone needs to be opened. This will not affect the normal driving of other lanes.

[0043] In this embodiment, the guide transition zone is designed with a gradually increasing control bag. The gradually increasing extension length of the control bag can form a trapezoidal design. This gradient design, i.e., a progressive warning zone, can guide vehicles to gradually change lanes to ensure the safety of drivers.

[0044] After the on-site accident is handled, in order to ensure that the gas from the control device can be properly discharged, such as Figure 2 and Figure 5 As shown, this embodiment also includes an exhaust device on the control bag. The exhaust device 21 consists of an exhaust channel 15 and an exhaust plug 7. The exhaust channel is located on the upper surface of the control bag at the end away from the blower. The exhaust channel and the control bag are an integrated structure and protrude outward by a certain distance. The end of the exhaust channel 15 that exhausts outward is sealed by the exhaust plug. In this embodiment, the exhaust plug can be made of plastic, which is within the scope of existing technology. During the entire inflation process of the control bag, the air pressure inside the control bag will not push the exhaust plug open. The exhaust plug remains in its original position throughout the entire inflation process of the control bag. After the on-site vehicle accident is handled, the staff responsible for directing vehicles at the highway tunnel entrance can manually pull the exhaust plug out from the end of the exhaust channel to release the gas inside the control bag and then manually move the control bag to the support plate.

[0045] To ensure the proper functioning of devices such as blowers, audible and visual alarms, and variable message signs, this embodiment also includes an IoT backend controller. The inflation control device, audible and visual alarms, tunnel access codes, and variable message signs are connected to or communicate with the IoT backend controller. The IoT backend controller is deployed in the tunnel management center server room, employs an industrial-grade embedded processor, and integrates a 4G / 5G communication module, a Wi-Fi module, and an RS485 communication interface. It connects to various devices within the tunnel via optical fiber. The controller has a built-in linkage control algorithm that can receive data and send control commands.

[0046] Specifically, the blower has built-in sensors. The blower's sensor cables are connected to the controller along the pre-buried pipeline. The sensors are connected to the IoT backend controller via wireless modules (such as 4G / 5G, LoRa). After the blower starts, the current sensor monitors the operating current in real time and transmits it back to the IoT backend controller via the Modbus protocol. If the current value does not reach the rated range (such as no-load or overload), the IoT backend controller determines that the start-up has failed and triggers an alarm.

[0047] To control the start and stop states of the blower, the blower in this embodiment is powered by a 220V / 380V industrial power supply. A relay module is connected in series in the control circuit. The relay coil is driven by the IO interface or communication module of the IoT backend controller. For example, the controller outputs DC24V voltage to the relay coil. After the relay contacts close, the main circuit of the blower is connected, thus starting the blower.

[0048] As output devices, audible and visual alarms and variable message signs can be connected to the IoT backend controller via relay modules or network interfaces (such as TCP / IP). For example, the variable message sign receives graphic and text commands from the IoT backend controller via a fiber optic network, and the audible and visual alarm receives switch signals via a hard-wired connection. The tunnel security code establishes a connection with the IoT backend controller via the 4G / 5G public network, and the unstructured data (such as text and location coordinates) uploaded by the tunnel security code is transmitted to the IoT backend controller via an HTTP interface.

[0049] If the Chang'an Code scanning data shows that a vehicle is stopped in a certain lane, the IoT back-end controller will send an audible and visual alarm to the on-duty personnel after calculation.

[0050] When a car accident occurs inside the tunnel, drivers can access the vehicle accident data upload page by scanning the tunnel safety code. Drivers can select and submit information according to the situation at the scene. The submitted data includes the type of vehicle accident (such as vehicle malfunction, rear-end collision, scrape, etc.), the lane occupied (left lane, middle lane, right lane, emergency lane), and photos of the accident vehicle at the scene. The above data will be sent to the IoT backend controller via 4G / 5G network, along with mobile phone location information as auxiliary positioning. After obtaining the above information, the backend controller will accurately locate the accident vehicle based on the uploaded data, display the accident lane and the expected impact range, and issue an audible and visual alarm to the on-duty personnel.

[0051] After understanding the accident situation, the on-duty personnel will send a start command to the audible and visual alarm at the tunnel entrance through the IoT backend controller, and the buzzer and flashing light will start working. At the same time, a display command will be sent to the variable message sign, displaying a message such as "Accident XX meters ahead, lane XX closed". The on-duty personnel will send a "blower start" command to the inflation control device in the corresponding guidance transition area according to the lane where the accident vehicle is located. A set of blowers will be started in sequence every 5 seconds. The control bags will be inflated and unfolded in sequence under the wind output of the blowers. After the accident is dealt with, the staff responsible for directing traffic at the highway tunnel entrance will manually pull out the exhaust plug from the end of the exhaust channel. After the air in the control bag is completely discharged, the deflated control bag will be manually put back in place.

[0052] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A safety control device for soft barriers at the entrance of a high-speed tunnel, characterized in that, The system includes an inflatable control device, an audible and visual alarm, a tunnel access code, and a variable message sign. Several inflatable control devices are installed on the outside of the tunnel, facing the tunnel entrance. Each inflatable control device includes a blower and a control bag. The blower is connected to the tunnel's guardrail posts via a support plate, and the control bag is connected to the blower's output end. The audible and visual alarms are spaced apart on the inner walls of the left and right sides of the tunnel along the tunnel's direction of travel. The variable message sign is located at the tunnel entrance, and the tunnel access codes are spaced apart on the inner walls of the left and right sides of the tunnel along the tunnel's direction of travel.

2. The safety control device for soft barriers at the entrance of a high-speed tunnel as described in claim 1, characterized in that, The support plate is mounted on the guardrail post, and the two are connected at a 90-degree angle.

3. The safety control device for soft barriers at the entrance of a high-speed tunnel as described in claim 1, characterized in that, The blower is connected to the support plate via a fixed bracket.

4. The safety control device for soft barriers at the entrance of a high-speed tunnel as described in claim 1, characterized in that, The inflatable control device also includes a reflective film, which is affixed to the outer surface of the control bag.

5. A safety control device for soft barriers at the entrance of a high-speed tunnel as described in claim 4, characterized in that, The reflective film is a Class V reflective film, and the Class V reflective film is applied in a position corresponding to the direction of the driver's line of sight.

6. The safety control device for soft barriers at the entrance of a high-speed tunnel as described in claim 1, characterized in that, The inflatable control device also includes a strobe device, which is located around the control bag.

7. A safety control device for soft barriers at the entrance of a high-speed tunnel as described in claim 6, characterized in that, The strobe device consists of LED light strips.

8. A safety control device for soft barriers at the entrance of a high-speed tunnel as described in claim 1, characterized in that, The tunnel access code uses a QR code format.

9. A safety control device for soft barriers at the entrance of a high-speed tunnel as described in claim 1, characterized in that, The control bag is also equipped with an exhaust device, which consists of an exhaust channel and an exhaust plug. The exhaust channel is located on the upper surface of the end of the control bag away from the blower. The exhaust channel and the control bag are an integrated structure and protrude outward by a certain distance. The end of the exhaust channel that exhausts air outward is sealed by the exhaust plug.

10. A safety control device for soft barriers at the entrance of a high-speed tunnel as described in claim 1, characterized in that, It also includes an IoT back-end controller, an inflatable deployment device, an audible and visual alarm, a tunnel safety code, and a variable message sign, all of which are connected to or communicate with the IoT back-end controller.

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