Active light-emitting intelligent sighting mark system

Abstract

The utility model discloses an active light-emitting intelligent sighting mark system, which relates to the technical field of machine vision visibility identification and comprises an intelligent sighting mark, video front-end equipment and a visibility detection platform remotely connected with the intelligent sighting mark and the video front-end equipment, the intelligent sighting mark comprises a shell, an opening is formed in one side of the shell, a mounting cavity is formed in the shell, a light-transmitting panel is fixedly arranged on the opening side of the mounting cavity, a light-emitting module is fixedly arranged on the side wall, opposite to the light-transmitting panel, of the mounting cavity, and a control and communication module is fixedly arranged in the mounting cavity. A humidity detection module is fixedly arranged outside the shell, and the humidity detection module and the light-emitting module are connected with the control and communication module. By arranging the system, the road visibility can be accurately detected in a large area under low-visibility conditions such as night or rain and fog.

Description

Technical Field

[0001] The utility model relates to the technical field of machine vision visibility recognition, and in particular to an active luminous intelligent sight mark system. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art.

[0003] Currently, most highway visibility tests use diffuse visibility meters to detect the light transmittance of small air samples at a few points to obtain visibility. However, the detection principle of this type of equipment is not very suitable for visibility testing in other low-visibility weather conditions such as fog, haze, ice and snow, and rain.

[0004] In recent years, machine vision-based visibility recognition technology has flourished. Typically, under conditions of good daylight or sufficient road illumination, these technologies automatically identify fog levels based on reference images, extract high-contrast road dividing lines as virtual targets for visibility detection, or utilize a dual-brightness difference method to monitor visibility based on the ratio of target-to-sky brightness differences at varying distances. These methods require clear reference or target images for visibility detection to ensure accuracy.

[0005] However, in low-visibility weather conditions such as fog, snow, and rain, or at night, it's impossible to obtain clear images of reference objects or targets, resulting in lower visibility detection accuracy. Furthermore, there are currently few fixed reference objects on highways that can be used for digital image visibility recognition technology in low-visibility weather or at night. Utility Model Content

[0006] In order to solve the technical problems existing in the prior art, the utility model provides an active luminous intelligent sight mark system. By setting up this system, visibility recognition based on digital images can be performed over a large range in low-visibility weather or night conditions, and the recognition accuracy can be improved.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An active luminous intelligent sight mark system, comprising an intelligent sight mark, a video front-end device and a visibility detection platform remotely connected to the two;

[0009] The smart sight mark includes a shell, one side of the shell is open and an installation cavity is provided inside, a light-transmitting panel is fixedly provided on the open side of the installation cavity, a light-emitting module is fixedly provided on the side wall of the installation cavity opposite to the light-transmitting panel, a control and communication module is fixedly provided inside the installation cavity, and a humidity detection module is fixedly provided outside the shell, and the humidity detection module and the light-emitting module are respectively connected to the control and communication module.

[0010] According to a further technical solution, a plurality of clamp installation grooves are embedded on the outer side wall of the shell, and the shell is fixedly connected to the column by installing the clamps.

[0011] As a further technical solution, the video front-end device uses a camera to shoot the video of the smart sight mark.

[0012] A further technical solution is that the video of the smart sight mark is transmitted to a visibility detection platform.

[0013] According to a further technical solution, the light-transmitting panel is an E-shaped light-transmitting panel.

[0014] As a further technical solution, the light emitting module adopts an LED light source board with mixed light directional technology and beads arranged at regular intervals.

[0015] According to a further technical solution, the control and communication module includes a connected control module and a wireless communication module.

[0016] According to a further technical solution, the control module is connected to the humidity detection module, the light emitting module and the wireless communication module respectively.

[0017] According to a further technical solution, the control module is connected to the visibility detection platform via a wireless communication module.

[0018] A further technical solution is that a power supply module is also provided inside the smart sight mark, the input end of the power supply module is connected to the mains power, and the output end of the power supply module is respectively connected to the control module, the light-emitting module, the humidity detection module and the wireless communication module.

[0019] Beneficial effects of the utility model:

[0020] The utility model sets up a smart sight mark, which can actively emit light and has a standard sign appearance. It has the advantages of not relying on ambient light sources, not interfering with driving vision, and being energy-saving and environmentally friendly. It can be used as a fixed reference object for visibility identification, is easy to install, has low cost, and can be deployed over a large area.

[0021] The present invention provides an actively luminous smart sight mark system. The smart sight mark is combined with a video front-end device and a visibility detection platform. In low-visibility weather or at night, the smart sight mark can actively emit light, so that the video front-end device can obtain a clear video of the smart sight mark, and the visibility detection platform can perform visibility recognition based on the clear smart sight mark image, thereby improving recognition accuracy. It can accurately detect road visibility at night or in low-visibility conditions, rather than only detecting a large visibility range, such as less than 1,000 meters or less than 500 meters. Compared with using a diffuse visibility meter to detect visibility under low-visibility conditions, the recognition accuracy under multiple weather types is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0023] Figure 1 This is a front view of the smart sight mark according to an embodiment of the present utility model;

[0024] Figure 2 This is a side sectional view of the smart sight mark according to an embodiment of the present utility model;

[0025] Figure 3 This is the overall architecture diagram of the active luminous intelligent sight mark system according to an embodiment of the present utility model.

[0026] 1-housing, 2-control and communication module, 3-light-emitting module, 4-light-transmitting panel, 5-humidity detection module, 6-cable tube, 7-clamp, 8-column, 9-power module. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] See also Figure 1 As shown, an embodiment of the present invention provides an active luminous smart sight mark system, including a smart sight mark, a video front-end device and a visibility detection platform remotely connected to the two; the smart sight mark includes a shell 1, one side of the shell 1 is open and an installation cavity is provided inside, a light-transmitting panel 4 is fixedly provided on the opening side of the installation cavity, a light-emitting module 3 is fixedly provided on the side wall of the installation cavity opposite to the light-transmitting panel 4, a control and communication module 2 is fixedly provided inside the installation cavity, and a humidity detection module 5 is fixedly provided on the outside of the shell 1, and the humidity detection module 5 and the light-emitting module 3 are respectively connected to the control and communication module 2.

[0029] In this embodiment, the smart sight mark includes a housing 1, a light-transmitting panel 4, a control and communication module 2, a light-emitting module 3, a humidity detection module 5, and a power module 9. The housing 1 is open on one side and has an internal mounting cavity. The light-transmitting panel 4 is fixedly mounted on the open side of the mounting cavity, and the light-emitting module 3 is fixedly mounted on the sidewall opposite the light-transmitting panel 4. The control and communication module 2 and the power module are fixedly mounted inside the mounting cavity. The humidity detection module 5 is fixedly mounted on the outside of the housing 1. A cable conduit 6 is fixedly mounted on the housing 1 below the humidity detection module 5. The cable conduit 6 passes through the housing 1 and communicates with the interior thereof, allowing cables to pass through. This allows the external power supply to be connected to the power module 9 via cables, and the humidity detection module 5 to be connected to the control and communication module 2 and the power module 9, respectively, via cables.

[0030] In some embodiments, the light-transmitting panel 4 is an E-shaped light-transmitting panel 4. The outlet of the cable tube 6 is downward to prevent rainwater from splashing into the installation cavity.

[0031] A light-transmitting panel 4 is fixed to the opening side of the mounting cavity and is bolted to the four walls of the mounting cavity of the housing 1. To prevent rainwater from seeping into the mounting cavity and damaging the internal equipment, a sealing strip is provided between the light-transmitting panel 4 and the surrounding contact surfaces of the mounting cavity of the housing 1 to prevent water from entering.

[0032] The light-emitting module 3 adopts an LED light source board with mixed light directional technology and regularly spaced beads. The main body of the light-transmitting panel 4 is made of transparent organic glass, and retroreflective material is pasted on the outer surface. The black area, that is, the area outside the E logo, is opaque, and the yellow area of the E logo is translucent. The light source passes through the back of the retroreflective material of the light-transmitting panel 4 to form penetrating light and display a high-definition E logo.

[0033] The humidity detection module 5 uses a humidity sensor. The humidity detection module 5 is fixedly arranged on the outside of the housing 1 of the smart sight mark, and is connected to the control and communication module 2 through an RJ85 interface cable. The collected humidity information is transmitted to the control and communication module 2 through the RJ85 interface cable to realize the detection of the humidity of the external environment.

[0034] The control and communication module 2 includes a control module and a wireless communication module. The humidity detection module 5, the light-emitting module 3, and the wireless communication module are each connected to the control module. The control module is connected to the visibility detection platform via the wireless communication module, enabling remote communication between the two. A power supply module 9 is also provided within the smart sight mark. The input end of the power supply module 9 is connected to the mains electricity, and the output end of the power supply module 9 is electrically connected to the control module, the light-emitting module 3, the humidity detection module 5, and the wireless communication module. This provides a stable voltage supply to each module within the smart sight mark, acting as a voltage regulator.

[0035] The control module, light module 3, humidity detection module 5, wireless communication module, and power module are all configured using existing components. These components can be flexibly selected based on actual needs and are not specifically limited in this embodiment. The wireless communication module utilizes a 4G / 5G communication module; the control module utilizes a single-chip microcomputer, such as an AT89C52 or ATmega16. The control module is connected to the light module 3 to control and set the on / off timing of the light module 3.

[0036] In some embodiments, the control module has manual control, humidity control, and timing control modes. Manual control switches the light-emitting module on and off by manually turning off or on the switching power supply of the control module external to the bottom surface of the housing 1. Timing control is a time range for turning the light on and off that is pre-set in the control module. It can be flexibly set in the light-on range of 00:00 to 23:59 and the light-off range of 00:00 to 23:59 to control the light-on and light-off time of the light-emitting module. Humidity control is a humidity threshold that is pre-set in the control module. The light-on and light-off time of the light-emitting module are automatically controlled according to the air humidity detected by the humidity detection module and the humidity threshold. The default light-on time range of the control module is the union of humidity control and timing control, and both modes can share the same port output.

[0037] In another embodiment, the user can remotely set the time range for turning lights on and off in the timer control mode and the humidity threshold in the humidity control mode through the visibility detection platform. The visibility detection platform sends a control instruction to the control module, which receives the control instruction and obtains the time range for turning lights on and off or the humidity threshold.

[0038] The sending of the visibility detection platform instructions, the receiving of the control module instructions and the acquisition of corresponding information, and the control logic in the control module are all implemented using existing technologies. Those skilled in the art will know how to set them up, and no further details will be given here.

[0039] The control module is also equipped with a rechargeable battery. When the lighting conditions are met, if the external power supply is suddenly cut off, the power supply will be automatically started within 10 seconds without any human operation. The switching between mains power and battery charging is achieved using the existing switching method.

[0040] Multiple mounting slots for clamps 7 are embedded in the outer wall of the housing 1, near the cable conduit 6. These clamps 7 are used to securely connect the housing 1 to a column 8, which then mounts the smart sight beacon on the highway. The smart sight beacon is secured to the column 8 and installed in the highway's median strip, or at the junction of the earth shoulder and the roadbed slope outside the highway guardrail.

[0041] The smart sight beacon can be deployed at three different distances, approximately 50 meters, 100 meters, and 200 meters, from the monitoring point where the video front-end device is located. With the light-transmitting panel 4 facing the video front-end device, the video of the smart sight beacon, or camera, is captured by the video front-end device and transmitted to the visibility monitoring platform. In this embodiment, the smart sight beacon can be considered a roadside sign, offering flexible installation options based on actual conditions. For a simple installation, it can be mounted on a column 8.

[0042] In this embodiment, the video front-end device is a high-definition video camera installed on the highway, which automatically captures the video of the smart sight mark through the video front-end device. In some embodiments, cameras are deployed in the highway network, and one camera point can be configured with one smart sight mark, and the smart sight marks are deployed in three levels at this location. The camera can directly use the surveillance camera on the highway to continuously record the video stream and transmit it back to the server. The planning of its fixed position has been determined, and there is no need to add additional cameras. The camera is set outdoors and is uniformly managed and maintained by the road transportation management unit. Damaged cameras are repaired and maintained in a timely manner to ensure the stable operation of the camera.

[0043] In this embodiment, the visibility detection platform is deployed on a video analysis server at a road monitoring subcenter. The server receives video from the smart sight beacon and performs visibility recognition based on the image of the smart sight beacon. This can be achieved using existing visibility recognition algorithms, which can identify current visibility based on the image of the smart sight beacon.

[0044] Working principle detailed description:

[0045] The smart sight beacon controls the on / off time of the light module through the control module. During the lighting time, that is, at night or under poor lighting conditions, the smart sight beacon actively emits light (i.e., the light-emitting unit emits light). The video front-end device captures the video of the smart sight beacon and transmits it to the visibility detection platform. The visibility detection platform quickly identifies the visibility level based on the three-level deployed smart sight beacon image, and can accurately detect road visibility in a large area at night or under low visibility conditions such as rain and fog.

[0046] The active luminous smart sight beacon system focuses on identifying visibility levels in low visibility or nighttime conditions. Low visibility generally refers to visibility below 1000 meters. Existing machine vision-based visibility recognition technology has high recognition accuracy in high visibility, but cannot accurately identify low visibility. It can only identify a large range, such as visibility greater than 500 meters but less than 1000 meters, less than 500 meters, etc., and cannot identify visibility levels below 500 meters. In this embodiment, the three levels of smart sight beacons are deployed at distances of 50 meters, 100 meters, and 200 meters from the front-end video equipment, which can achieve accurate recognition of low visibility, such as the recognition and classification of visibility levels within 500 meters.

[0047] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. An active luminous intelligent sight mark system, characterized by: It includes smart sight signs, video front-end equipment and a visibility detection platform that is remotely connected to the two; The smart sight mark includes a shell, one side of the shell is open and an installation cavity is provided inside, a light-transmitting panel is fixedly provided on the open side of the installation cavity, a light-emitting module is fixedly provided on the side wall of the installation cavity opposite to the light-transmitting panel, a control and communication module is fixedly provided inside the installation cavity, and a humidity detection module is fixedly provided outside the shell, and the humidity detection module and the light-emitting module are respectively connected to the control and communication module.

2. The active luminous intelligent sight mark system according to claim 1, characterized in that: A plurality of clamp installation grooves are embedded on the outer side wall of the shell, and the shell is fixedly connected to the column by installing the clamps.

3. The active luminous intelligent sight mark system according to claim 1, characterized in that: The video front-end device uses a camera to shoot the video of the smart sight mark.

4. The active luminous intelligent sight mark system according to claim 3, characterized in that: The video of the smart sight mark is transmitted to the visibility detection platform.

5. The active luminous intelligent sight mark system according to claim 1, characterized in that: The light-transmitting panel is an E-shaped light-transmitting panel.

6. The active luminous intelligent sight mark system according to claim 1, characterized in that: The light emitting module adopts an LED light source board with mixed light directional technology and beads arranged at regular intervals.

7. The active luminous intelligent sight mark system according to claim 1, characterized in that: The control and communication module includes a connected control module and a wireless communication module.

8. The active luminous intelligent sight mark system according to claim 7, characterized in that: The control module is connected to the humidity detection module, the light emitting module and the wireless communication module respectively.

9. The active luminous intelligent sight mark system according to claim 8, characterized in that: The control module is connected to the visibility detection platform via a wireless communication module.

10. The active luminous intelligent sight mark system according to claim 1, characterized in that: A power supply module is also provided inside the smart sight mark. The input end of the power supply module is connected to the mains power, and the output end of the power supply module is respectively connected to the control module, the light-emitting module, the humidity detection module and the wireless communication module.

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