Safe step distance detection system

Abstract

This invention relates to a safe step distance detection system, comprising a sensing module, an alarm module, and a controller. The sensing module includes multiple sensing units evenly distributed along the tunnel's extension direction and installed on the same side of the tunnel wall, connected in parallel to the controller. The controller receives the sensing information from the sensing units, processes the information according to a built-in preset program, and sends instructions to the alarm module based on the processing results. The alarm module includes multiple alarm units installed inside the tunnel, each corresponding to one of the sensing units. These alarm units are connected in parallel to the controller and receive instructions from the controller, sending alert information to the outside world based on the instructions. This system addresses the problem in existing technologies where, when a vehicle enters a tunnel or encounters severe weather while driving through a tunnel, the driver's visibility is poor, making it difficult to accurately judge the distance to the vehicle in front, which can easily lead to traffic accidents, causing property damage and even endangering personal safety.

Description

Technical Field

[0001] This invention relates to the field of road safety technology, and more specifically to a safe step distance detection system. Background Technology

[0002] my country is a mountainous country, with approximately 75% of its land area consisting of mountains or hills. To develop road transportation and protect the environment, it is essential to vigorously develop tunnel construction. Highway tunnels are currently one of the most common types of roadways in China. However, the traffic monitoring equipment in a few exceptionally long tunnels is imported, while many tunnels have little or no monitoring equipment, which hinders the development of highway tunnels in my country.

[0003] In existing technologies, when a car enters a tunnel or encounters severe weather while driving in a tunnel, the driver's visibility is poor, making it difficult to accurately judge the distance to the vehicle in front. This greatly increases the risk of traffic accidents, causing property damage and even endangering personal safety. Therefore, we provide a safe step distance detection system to solve the above problems. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a safe step distance detection system to solve the problem in the prior art that when a car enters a tunnel or encounters bad weather while driving in a tunnel, the driver's visibility is poor, making it difficult to accurately control the distance to the vehicle in front, which can easily lead to traffic accidents, property damage, or even endanger personal safety.

[0005] This invention is achieved through the following technical solution:

[0006] A safe step distance detection system includes a sensing module, an alarm module, and a controller;

[0007] The sensing module includes multiple sensing units, which are evenly distributed and installed on the same side of the tunnel wall along the tunnel extension direction and connected in parallel to the controller.

[0008] The controller is used to receive the sensing information transmitted by the sensing unit, process the sensing information according to the built-in preset program, and send instructions to the alarm module according to the processing result.

[0009] The alarm module includes multiple alarm units installed in the tunnel, each corresponding to a multiple sensing unit. The multiple alarm units are connected in parallel to the controller to receive instructions from the controller and send prompt information to the outside world according to the instructions.

[0010] Furthermore, each of the multiple sensing units and the corresponding alarm unit is provided with a mounting bracket, and each of the multiple mounting brackets is connected to one side wall inside the tunnel;

[0011] The mounting frame is provided with a first crossbar for mounting the sensing unit and a second crossbar for mounting the alarm unit. The first crossbar is parallel to the road surface inside the tunnel and perpendicular to the second crossbar.

[0012] The second crossbar extends in the same direction as the tunnel, and the middle parts of both the first and second crossbars are fixedly connected to the mounting frame.

[0013] Furthermore, each of the multiple mounting brackets has a slider fixedly connected to its center, and the multiple sliders are slidably fitted with a slide rail.

[0014] The slide rail extends in the same direction as the tunnel and is fixedly installed on one side wall inside the tunnel.

[0015] Furthermore, each of the multiple mounting frames has a take-up roller sleeved and rotatably connected to the first crossbar, and a measuring rope is wound around the take-up roller, with one end of the measuring rope fixedly connected to the take-up roller.

[0016] Furthermore, the sensing unit is an infrared sensor, which is connected to the end of the first crossbar facing the other side wall inside the tunnel.

[0017] Multiple infrared sensors on the mounting brackets emit infrared rays toward the other side wall inside the tunnel, and the infrared rays emitted by the multiple infrared sensors are parallel to each other.

[0018] Furthermore, the infrared sensor is rotatably connected to one end of the first crossbar, and the plane of its rotation trajectory is parallel to the road surface inside the tunnel.

[0019] Furthermore, one side of the mounting frame is provided with an absorption plate for absorbing infrared light. The absorption plate extends in the same direction as the tunnel and is fixedly installed on the other side wall inside the tunnel. The infrared light emitted by the multiple infrared sensors all irradiates the absorption plate.

[0020] Furthermore, each of the multiple second crossbars has a WIFI transceiver module fixedly connected to one end, and the WIFI transceiver modules on the multiple second crossbars are electrically connected to the corresponding sensing unit and the corresponding alarm unit.

[0021] The controller is also electrically connected to a WIFI transceiver module, and the WIFI transceiver modules on the multiple second crossbars are all communicatively connected to the WIFI transceiver module on the controller.

[0022] Furthermore, the alarm unit includes a speaker, which is fixedly connected to the second crossbar and electrically connected to a WIFI transceiver module on the corresponding second crossbar.

[0023] Furthermore, the alarm unit also includes a warning light, which is fixedly connected to the second crossbar and connected in series with a corresponding horn.

[0024] The beneficial effects of this invention are as follows:

[0025] This safe driving distance detection system collects vehicle movement information at corresponding locations within a tunnel using sensing units. Multiple sensing units are evenly distributed along the tunnel's extension direction to form a sensing area. This area is used to simultaneously detect whether vehicles are passing through multiple locations within the sensing area and transmit the information to a controller. The controller processes the sensing information according to a pre-set program to analyze and obtain the instantaneous position of vehicles within the area, specifically the distance between two adjacent vehicles. It then determines whether this distance meets the safe driving distance requirement and sends a command to an alarm module based on the determination result. The alarm module then issues a warning message to remind adjacent vehicles to maintain a safe driving distance, reducing the probability of traffic accidents.

[0026] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention (viewpoint 1);

[0028] Figure 2 This is a three-dimensional structural schematic diagram of an embodiment of the present invention (viewpoint two);

[0029] Figure 3 This is a three-dimensional structural diagram of the mounting bracket in an embodiment of the present invention;

[0030] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic diagram illustrating the working principle in an embodiment of the present invention.

[0032] In the diagram: Tunnel 11, Mounting frame 2, First crossbar 21, Second crossbar 22, Slider 23, Slide rail 24, Winding roller 25, Measuring rope 26;

[0033] Infrared sensor 31, absorption plate 32, WIFI transceiver module 33, horn 34, warning light 35, vertical axis wind turbine generator set 36, storage battery 37. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for 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. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0039] Please see Figure 1-5 The present invention provides a technical solution: a safe step distance detection system, including a sensing module, an alarm module and a controller 12;

[0040] The sensing module includes multiple sensing units, which are evenly distributed and installed on the same side of the wall of the tunnel 11 along the extension direction of the tunnel 11, and are connected in parallel to the controller 12.

[0041] The controller 12 is used to receive the sensing information transmitted by the sensing unit, process the sensing information according to the built-in preset program, and send instructions to the alarm module according to the processing result.

[0042] The alarm module includes multiple alarm units installed in the tunnel 11, each corresponding to a multiple sensing unit. The multiple alarm units are connected in parallel to the controller 12 to receive instructions from the controller 12 and send prompt information to the outside world according to the instructions.

[0043] The sensing unit is used to collect sensing information about vehicles traveling at corresponding locations within tunnel 11. By setting multiple sensing units within tunnel 11 and distributing them evenly along the extension direction of tunnel 11, a sensing area is formed in the extension direction of tunnel 11, so as to simultaneously sense whether a vehicle has passed through multiple locations within the sensing area. The length of tunnel 11 corresponding to this sensing area is set to be equal to the minimum safe driving distance under the speed limit conditions of tunnel 11, and two adjacent sensing units cannot sense the same vehicle at the same time. After collecting the sensing information about vehicle travel, the sensing unit transmits the sensing information to the controller 12. The controller 12 processes the sensing information according to a built-in preset program to analyze and obtain the number and instantaneous position of vehicles in the sensing area, and sends instructions to multiple alarm units based on the processing results. Multiple alarm units simultaneously issue warning information to remind vehicles in the sensing area to maintain a safe driving distance and reduce the probability of traffic accidents.

[0044] During use, this detection system may encounter the following two states:

[0045] State 1: When there are no cars driving in the sensing area, a car drives into the sensing area. As the car drives, multiple sensing units send sensing information to the controller 12 in sequence. When no vehicles drive into the sensing area behind the car, the controller 12 only receives one sensing information at a time. The controller 12 analyzes and determines that there is only one car driving in the sensing area, that is, there is safe driving space in both the front and rear directions of the car. Therefore, the controller 12 does not send a trigger command to the alarm unit, and the alarm unit does not issue a warning message.

[0046] State 2: When there are no cars driving in the sensing area, a car drives into the sensing area. As the car drives, multiple sensing units send sensing information to the controller 12 in sequence. When a vehicle drives into the sensing area from behind, two of the sensing units simultaneously sense the car's driving information and transmit the sensing information to the controller 12. The controller 12 analyzes and determines that there are two cars driving in the sensing area, that is, the distance between the car and the following car has decreased and has not reached the minimum safe driving distance. Therefore, the controller 12 simultaneously sends trigger commands to multiple alarm units, and multiple alarm units simultaneously issue warning information to remind the car behind to pay attention to avoid the car and to remind the following car to slow down and maintain a safe driving distance.

[0047] In this embodiment: each of the multiple sensing units and the corresponding alarm unit is provided with a mounting bracket 2, and each of the multiple mounting brackets 2 is connected to one side wall inside the tunnel 11;

[0048] The mounting frame 2 is provided with a first crossbar 21 for installing the sensing unit and a second crossbar 22 for installing the alarm unit. The first crossbar 21 is parallel to the road surface inside the tunnel 11 and perpendicular to the second crossbar 22.

[0049] The second crossbar 22 extends in the same direction as the tunnel 11, and the middle parts of the first crossbar 21 and the second crossbar 22 are both fixedly connected to the mounting frame 2.

[0050] By placing the first horizontal bar 21 and the second horizontal bar 22 in two horizontal planes and making them perpendicular to each other, the first horizontal bar 21 and the second horizontal bar 22 are misaligned, so as to facilitate the installation of components such as sensing units and alarm units, and reduce the probability of interference between the components.

[0051] Multiple mounting brackets 2 are each topped with a vertical axis wind turbine generator set 36, and the rotation axis of the blades of the vertical axis wind turbine generator set 36 is perpendicular to the road surface of the tunnel 11. When a vehicle travels over the mounting bracket 2, the vehicle pushes the air in the tunnel 11 towards the extension direction of the tunnel 11, forming an airflow. The airflow drives the blades of the vertical axis wind turbine generator set 36 to rotate, causing the vertical axis wind turbine generator set 36 to generate electrical energy. Multiple mounting brackets 2 are each fixedly mounted with a battery 37, which stores the electrical energy generated by the vertical axis wind turbine generator set 36 on the corresponding mounting bracket 2. The battery 37 is electrically connected to the sensing unit and alarm unit on the corresponding mounting bracket 2. A controller 12 is fixedly mounted at the bottom of one of the mounting brackets 2 and electrically connected to the corresponding battery 37.

[0052] In this embodiment: a slider 23 is fixedly connected to the middle of each of the multiple mounting brackets 2, and a slide rail 24 is slidably engaged on the multiple sliders 23;

[0053] The slide rail 24 extends in the same direction as the tunnel 11 and is fixedly installed on one side wall inside the tunnel 11.

[0054] By setting a slide rail 24 that extends in the same direction as the tunnel 11 and driving expansion bolts into one side wall of the tunnel 11, the slide rail 24 is fixedly installed. The slider 23 is slidably engaged with the slide rail 24 to restrict the free rotation of the mounting frame 2, so that the mounting frame 2 can slide with a single degree of freedom along the extension direction of the tunnel 11. This facilitates the control and adjustment of the distance between two adjacent mounting frames 2, and adjusts the length value of the sensing area corresponding to the tunnel 11, that is, adjusts the safe driving distance value that triggers the system to issue warning information during vehicle driving.

[0055] The bottom of the mounting frame 2 rests against the road shoulder inside the tunnel 11. The road shoulder supports the mounting frame 2, distributing the pressure on the slide rail 24 and improving the stability of the connection between the slider 23 and the slide rail 24 in the mounting frame 2.

[0056] In this embodiment: a winding roller 25 is sleeved and rotatably connected to the first crossbar 21 on each of the multiple mounting frames 2. A measuring rope 26 is wound around the winding roller 25, and one end of the measuring rope 26 is fixedly connected to the winding roller 25.

[0057] A torsion spring is provided between the take-up roller 25 and the first crossbar 21. One end of the torsion spring is fixedly connected to the take-up roller 25 and the other end is fixedly connected to the first crossbar 21. When the torsion spring is in its naturally extended state, the measuring rope 26 is wound around the take-up roller 25.

[0058] The measuring rope 26 is provided to facilitate the measurement and adjustment of the distance between two adjacent mounting frames 2; the winding roller 25 and torsion spring are provided to facilitate the rapid winding of the measuring rope 26, thereby improving the efficiency of storing the measuring rope 26.

[0059] In this embodiment: the sensing unit is an infrared sensor 31, and the infrared sensor 31 is connected to one end of the first crossbar 21 facing the other side wall inside the tunnel 11;

[0060] Multiple infrared sensors 31 on the mounting brackets 2 emit infrared rays toward the other side wall inside the tunnel 11, and the infrared rays emitted by the multiple infrared sensors 31 are parallel.

[0061] In this embodiment: the infrared sensor 31 is rotatably connected to one end of the first crossbar 21, and the plane of the rotation trajectory is parallel to the road surface inside the tunnel 11.

[0062] By rotating the infrared sensor 31 to face the entrance of tunnel 11, a portion of the infrared light emitted by the sensor 31 exits the entrance, allowing it to detect whether a vehicle is passing by outside the tunnel entrance. This detects whether there is a vehicle within the safe driving distance in front of a vehicle about to enter tunnel 11 and issues a corresponding warning. By rotating the infrared sensor 31 to the first crossbar 21, the direction of infrared light emitted by the sensor 31 can be adjusted, allowing for adjustment of the deflection angle of the infrared sensor 31 according to the speed limit standard of tunnel 11.

[0063] In this embodiment: the mounting frame 2 is provided with an absorption plate 32 for absorbing infrared rays on one side. The absorption plate 32 extends in the same direction as the tunnel 11 and is fixedly installed on the other side wall inside the tunnel 11. The infrared rays emitted by the multiple infrared sensors 31 are all irradiated on the absorption plate 32.

[0064] The surface of the absorption plate 32 is coated with an infrared absorber. When the infrared light emitted by the infrared sensor 31 shines on the absorption plate 32, the infrared absorber absorbs the infrared light, reducing the probability that the reflected infrared light will be received by the infrared sensor 31, thereby improving the accuracy of the information sensed by the infrared sensor 31.

[0065] In this embodiment: one end of each of the multiple second crossbars 22 is fixedly connected to a WIFI transceiver module 33, and the WIFI transceiver module 33 on each of the multiple second crossbars 22 is electrically connected to the corresponding sensing unit and the corresponding alarm unit;

[0066] The controller 12 is also electrically connected to a WIFI transceiver module 33, and the WIFI transceiver modules 33 on the multiple second crossbars 22 are all communicatively connected to the WIFI transceiver module 33 on the controller 12.

[0067] The WIFI transceiver module 33 on the mounting bracket 2 and the WIFI transceiver module 33 on the controller 12 are wirelessly connected to improve the freedom of movement of the mounting bracket 2 and facilitate its relocation.

[0068] In this embodiment: the alarm unit includes a speaker 34, which is fixedly connected to the second crossbar 22, and the speaker 34 is electrically connected to the WIFI transceiver module 33 on the corresponding second crossbar 22.

[0069] By installing horns 34 on multiple mounting brackets 2 and controlling multiple horns 34 to emit warning sounds simultaneously through controller 12, multiple warning sounds are emitted in the sensing area in the direction of tunnel 11 extension, warning all vehicles in the sensing area, reminding drivers in the vehicles through hearing, improving drivers' attention, and reducing the probability of traffic accidents.

[0070] In this embodiment, the alarm unit further includes a warning light 35, which is fixedly connected to the second crossbar 22, and the warning light 35 is connected in series with the corresponding horn 34.

[0071] By installing warning lights 35 on multiple mounting brackets 2 and controlling the controller 12 to simultaneously emit warning light 35 light, multiple points of warning light 35 light are emitted in the sensing area extending towards the tunnel 11, warning all vehicles in the sensing area and visually reminding drivers inside the vehicles, further reducing the probability of traffic accidents. At the same time, the multiple warning lights 35 form a guide line in the tunnel 11 to assist vehicles in moving forward.

[0072] Among them, the infrared sensor 31 is specifically modeled as GP2Y0A710K, and the WIFI transceiver module is specifically modeled as CC3100.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A safe step distance detection system, characterized in that: It includes a sensing module, an alarm module, and a controller (12); The sensing module includes multiple sensing units, which are evenly distributed and installed on the same side of the tunnel wall (11) along the extension direction of the tunnel (11) and connected in parallel to the controller (12). The controller (12) is used to receive the sensing information transmitted by the sensing unit, process the sensing information according to the built-in preset program, and send instructions to the alarm module according to the processing result. The alarm module includes multiple alarm units installed in the tunnel (11) that correspond one-to-one with multiple sensing units. The multiple alarm units are connected in parallel to the controller (12) to receive instructions from the controller (12) and send prompt information to the outside world according to the instructions. Each of the multiple sensing units and the corresponding alarm unit is provided with a mounting bracket (2), and each of the multiple mounting brackets (2) is connected to one side wall inside the tunnel (11); The mounting frame (2) is provided with a first crossbar (21) for installing the sensing unit and a second crossbar (22) for installing the alarm unit. The first crossbar (21) is parallel to the road surface inside the tunnel (11) and perpendicular to the second crossbar (22). The second crossbar (22) extends in the same direction as the tunnel (11), and the middle parts of the first crossbar (21) and the second crossbar (22) are fixedly connected to the mounting frame (2); Each of the mounting brackets (2) has a slider (23) fixedly connected to its middle part, and a slide rail (24) is slidably fitted on each of the sliders (23); The slide rail (24) extends in the same direction as the tunnel (11) and is fixedly installed on one side wall inside the tunnel (11); The sensing unit is an infrared sensor (31), and the infrared sensor (31) is connected to the end of the first crossbar (21) facing the other side wall inside the tunnel (11); Multiple infrared sensors (31) on multiple mounting brackets (2) emit infrared rays toward the other side wall inside the tunnel (11), and the infrared rays emitted by the multiple infrared sensors (31) are parallel to each other; The mounting bracket (2) has an absorption plate (32) for absorbing infrared rays on one side. The absorption plate (32) extends in the same direction as the tunnel (11) and is fixedly installed on the other side wall inside the tunnel (11). The infrared rays emitted by the multiple infrared sensors (31) all irradiate the absorption plate (32). Each of the mounting brackets (2) has a take-up roller (25) sleeved on the outside of the first crossbar (21) and rotatably connected to it. A measuring rope (26) is wound around the take-up roller (25), and one end of the measuring rope (26) is fixedly connected to the take-up roller (25). A torsion spring is provided between the take-up roller (25) and the first crossbar (21). One end of the torsion spring is fixedly connected to the take-up roller (25), and the other end is fixedly connected to the first crossbar (21). When the torsion spring is in its natural extended state, the measuring rope (26) is wound around the take-up roller (25). The infrared sensor (31) is rotatably connected to one end of the first crossbar (21), and the plane of the rotation trajectory is parallel to the road surface inside the tunnel (11); One end of each of the multiple second crossbars (22) is fixedly connected to a WIFI transceiver module (33), and the WIFI transceiver module (33) on each of the multiple second crossbars (22) is electrically connected to the corresponding sensing unit and the corresponding alarm unit; The controller (12) is also electrically connected to a WIFI transceiver module (33), and the WIFI transceiver modules (33) on the multiple second crossbars (22) are all communicatively connected to the WIFI transceiver module (33) on the controller (12); A vertical axis wind turbine generator set (36) is installed on the top of each of the multiple mounting frames (2), and the rotation axis of the blades of the vertical axis wind turbine generator set (36) is perpendicular to the road surface of the tunnel (11). When a car drives over the mounting frame (2), the car pushes the air in the tunnel (11) to move in the direction of the tunnel (11) to form an airflow. The airflow drives the blades of the vertical axis wind turbine generator set (36) to rotate, so that the vertical axis wind turbine generator set (36) produces electrical energy. A battery (37) is fixedly installed at the bottom of each of the multiple mounting frames (2), and the battery (37) stores the electrical energy produced by the vertical axis wind turbine generator set (36) on the corresponding mounting frame (2). The battery (37) is electrically connected to the sensing unit and alarm unit on the corresponding mounting frame (2). The controller (12) is fixedly installed at the bottom of one of the mounting frames (2) and electrically connected to the corresponding battery (37).

2. The safe step distance detection system according to claim 1, characterized in that: The alarm unit includes a horn (34), which is fixedly connected to the second crossbar (22) and electrically connected to the WIFI transceiver module (33) on the corresponding second crossbar (22).

3. The safe step distance detection system according to claim 2, characterized in that: The alarm unit also includes a warning light (35), which is fixedly connected to the second crossbar (22) and is connected in series with the corresponding horn (34).

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