Intelligent pedestrian crossing device

Abstract

The application provides a kind of intelligent pedestrian crossing device, it is related to traffic facilities field, including: electric control box and vertical support piece;Electric control box includes: LED screen, laser radar and laser diffuser;The inside of electric control box is provided with operation controller, and the upper half of the left side wall of electric control box is fixedly installed with laser radar and laser diffuser in an upper and lower interval;Two LED screens are symmetrically inlaid and installed on the front and rear side walls of the electric control box, and the display side of the two LED screens is covered with sealing glass;The laser radar, laser diffuser and two LED screens are electrically connected with the operation controller and carry out data transmission to form an obstacle scanning detection system, and the laser diffuser is used to diffuse red laser warning that there is an obstacle on the sidewalk.The diffusing range of red laser beam of laser diffuser is larger, which can cover most of the area of pedestrian crossing, compared with the prior art of simply using LED screen for warning, the warning range is larger, and the warning effect is better.

Description

Technical Field

[0001] This invention relates to the field of traffic facility technology, and in particular to an intelligent pedestrian crossing device. Background Technology

[0002] With the increase in car ownership, the number of vehicles and people participating in social traffic is increasing, and the number of casualties caused by traffic accidents is constantly rising. The setting of pedestrian crossings (zebra crossings) can ensure the safety of pedestrians and non-motorized vehicles crossing the road. Pedestrian crossings are generally used in conjunction with traffic lights. However, at some intersections and pedestrian crossings with low traffic volume, the installation of traffic lights will reduce traffic efficiency. On the other hand, without traffic lights, especially at night, the safety of pedestrians cannot be guaranteed. Based on this, it is necessary to design an intelligent pedestrian crossing device to assist pedestrians in crossing at night.

[0003] Existing traffic crossing devices, when used at night, can mostly scan and detect obstacles (pedestrians, non-motorized vehicles, or other animals and debris) on pedestrian crossings in real time, detect people or objects crossing and issue warnings to vehicles. However, they mostly use displays to show brightly colored text or symbols to issue warnings. The display range of the screen is limited. When the vehicle is far away from the traffic crossing device and cannot see the warning text and symbols clearly, the warning effect on the driver is limited. It cannot remind the vehicle to brake in a timely and effective manner, which affects the safety of pedestrians crossing in the absence of traffic light rules.

[0004] In addition, since the warning displays on traffic devices are mostly mounted at a height, it is generally necessary for personnel to climb up or use an external brush with a certain length to clean the display. Climbing up poses a certain degree of danger, and the brush with a certain length is heavy and requires tilting the head up and holding it high when using it, making the operation cumbersome and inconvenient. Summary of the Invention

[0005] This disclosure relates to an intelligent pedestrian crossing device to address the problem that while displaying brightly colored text or symbols on a screen can provide early warnings, the display range of the screen is limited. When a vehicle is far from the crossing device and cannot clearly see the warning text or symbols, the warning effect on the driver is limited, and it cannot effectively remind the driver to brake in a timely manner, thus affecting the safety of pedestrians crossing in the absence of traffic light rules.

[0006] In a first aspect, this disclosure provides an intelligent pedestrian crossing device, specifically comprising: an electrical control box and a vertical support member; the electrical control box includes:

[0007] The system comprises an LED screen, a lidar, and a laser diffuser; the electrical control box contains a computing controller, and the lidar and laser diffuser are fixedly installed at intervals on the upper half of the left side wall of the electrical control box; two LED screens are symmetrically embedded on the front and rear side walls of the electrical control box, and the display sides of the two LED screens are sealed with glass; the lidar, laser diffuser, and two LED screens are all electrically connected to the computing controller and transmit data to form an obstacle scanning and detection system, wherein the lidar is used to scan and detect the road surface information on the sidewalk, and the laser diffuser is used to emit red laser to warn of the presence of obstacles on the sidewalk;

[0008] A cleaning rack is slidably mounted on the electrical control box. The cleaning rack consists of a U-shaped sliding frame on the right side and two vertical cleaning strips symmetrically welded to the left end of the U-shaped sliding frame. Two cleaning brushes are fixed to the side of the two vertical cleaning strips that are close to each other by Velcro. The two cleaning brushes slide to the right and come into contact with two sealed glass brushes. Two connecting rods are symmetrically rotatably connected to the protruding parts on the bottom sides of the two vertical cleaning strips.

[0009] A vertical support is fixed to the bottom center of the electrical control box by screws. A slip ring is slidably fitted on the top section of the vertical support. A T-shaped strut is welded to the right on the outer circumference of the slip ring. The tail ends of the two connecting rods are rotatably connected to the head end of the T-shaped strut. A pull rod is welded downward on the bottom side of the slip ring. A foot ring is welded to the bottom of the pull rod. The foot ring slides in engagement with the bottom section of the vertical support. A tension spring is used to connect the T-shaped strut to the top of the vertical support.

[0010] In at least some embodiments, two T-shaped sliders are symmetrically welded to the bottom protruding portions of the two vertical cleaning strips, and two T-shaped grooves are symmetrically opened on the bottom portion of the electrical control box. The left and right ends of the two T-shaped grooves are sealed, and the two T-shaped sliders slide in accordance with the two T-shaped grooves.

[0011] In at least some embodiments, the vertical support is composed of a main vertical support pipe and two circular discs, one small and one large, symmetrically welded to the upper and lower ends of the main vertical support pipe. The upper circular disc is directly connected and fixed to the electrical control box, and the lower circular disc is locked and fixed to the ground at both ends of the pedestrian crossing by expansion screws.

[0012] In at least some embodiments, the vertical support includes a vertical support tube, a mounting base, a rotating shaft tube, and a driven gear. The vertical support tube has two mounting bases symmetrically welded at its upper and lower ends. The mounting base is composed of two circular mounting discs at the top and bottom, and a ring of short vertical support rods welded around the two circular mounting discs. The top mounting base is directly connected and fixed to the electrical control box.

[0013] In at least some embodiments, a rotating shaft tube is rotatably mounted around two circular mounting discs on one side of the two mounting bases. A driven gear is welded to the protruding part on the bottom side of the rotating shaft tube, and the rotating shaft tube surrounds and wraps around the vertical support tube.

[0014] In at least some embodiments, a motor is screwed onto the top of the bottom circular mounting plate of the mounting base on the bottom side, and a drive gear is fitted onto the top of the motor shaft, which meshes with a driven gear for transmission.

[0015] In at least some embodiments, a raised strip is arranged around the outer circumference of the vertical support tube, and stainless steel brush filaments are evenly arranged on the raised strip.

[0016] In at least some embodiments, the rotating shaft tube is made of stainless steel, and the outer circumference of the rotating shaft tube rotates and comes into frictional contact with the stainless steel brush filaments on the raised strip.

[0017] In at least some embodiments, a circular base plate is welded to the bottom of the mounting base on the bottom side, and the circular base plate is locked and fixed to the ground at both ends of the pedestrian crossing by expansion bolts.

[0018] This invention provides an intelligent pedestrian crossing device, which has the following advantages:

[0019] When in use, the laser diffuser of this invention has a large diffusion range for the red laser beam, which can cover most of the area of ​​the pedestrian crossing. This creates a large, three-dimensional red beam scattering space at the pedestrian crossing, which visually appears as a three-dimensional red wall. Compared with existing technologies that simply use LED screens for warnings, this invention provides a larger warning range and a better warning effect, allowing vehicles to be effectively warned from a distance, enabling them to brake in time and ensuring the safety of pedestrians crossing the road.

[0020] In addition, the foot ring is located at a low height on the bottom part of the vertical support and is connected to the slip ring via a pull rod. This allows the operator to stand directly on the ground and manually move the foot ring down to control the cleaning frame to clean the sealed glass at a high position. Compared with existing technologies, this eliminates the need for personnel to climb or use external brushes of a certain length to clean the LED screen. The operation is safer and more convenient. Furthermore, when the foot is lifted, the tension spring can pull the foot ring, slip ring, and cleaning frame back to their original positions.

[0021] Furthermore, a rotating shaft tube is arranged around the outer surface of the vertical support and is rotatably installed. This means that when someone wants to affix an advertisement to the vertical support, they can only stick it on the rotating shaft tube. The motor drives the rotating shaft tube to rotate synchronously through the drive gear, which easily and quickly tears the advertisement sticker to pieces. As the rotating shaft tube rotates, the remaining adhesive paper can come into contact with the stainless steel bristles on the surface of the vertical support tube and be brushed off by the stainless steel bristles. This makes the cleaning and removal of advertisement stickers on the vertical support tube efficient and convenient, greatly reducing the cost of removing sticker advertisements from traffic devices. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0023] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0024] In the attached diagram:

[0025] Figure 1 A schematic diagram of the overall left side structure of Embodiment 1 of this application is shown;

[0026] Figure 2 A schematic diagram of the overall bottom structure of Embodiment 1 of this application is shown;

[0027] Figure 3 This application illustrates an embodiment of the first embodiment. Figure 2 Enlarged structural diagram of section A;

[0028] Figure 4 A schematic diagram of the cleaning rack structure according to Embodiment 1 of this application is shown;

[0029] Figure 5 This application illustrates an embodiment of the first embodiment. Figure 4 Enlarged structural diagram of section B;

[0030] Figure 6 This shows a schematic diagram of the overall left side structure of Embodiment 2 of this application;

[0031] Figure 7 A schematic diagram of the overall bottom structure of Embodiment 2 of this application is shown;

[0032] Figure 8 This application illustrates embodiment two. Figure 7 Enlarged structural diagram of section C;

[0033] Figure 9 A schematic diagram of the vertical support structure of Embodiment 2 of this application is shown;

[0034] Figure 10A schematic diagram of the bottom mounting base structure of Embodiment 2 of this application is shown;

[0035] Figure 11 A schematic diagram of the vertical support pipe with equal cross-section structure according to Embodiment 2 of this application is shown;

[0036] Figure 12 An exploded view of the vertical support component according to Embodiment 2 of this application is shown;

[0037] Figure 13 A flowchart of the obstacle scanning and detection system of this application is shown;

[0038] List of reference numerals

[0039] 1. Electrical control box; 101. LED screen; 102. LiDAR; 103. Laser diffuser; 104. Shaped slide rail;

[0040] 2. Cleaning rack; 201. T-shaped slider; 202. Connecting rod; 203. Slip ring; 204. Pull rod; 205. Step ring; 206. T-shaped support rod;

[0041] 3. Vertical support component; 301. Vertical support tube; 302. Mounting base; 303. Rotating shaft tube; 304. Driven gear;

[0042] 4. Motor; 401. Drive gear. Detailed Implementation

[0043] 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, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example 1: Please refer to Figures 1 to 5 :

[0045] This invention proposes an intelligent pedestrian crossing device, comprising: an electrical control box 1 and a vertical support 3; the electrical control box 1 includes: an LED screen 101, a lidar 102, and a laser diffuser 103; a computing controller is installed inside the electrical control box 1, and the lidar 102 and the laser diffuser 103 are fixedly installed at vertical intervals on the upper half of the left side wall of the electrical control box 1; two LED screens 101 are symmetrically embedded on the front and rear side walls of the electrical control box 1, and the display sides of the two LED screens 101 are sealed with glass; the lidar 102, the laser diffuser 103, and the two LED screens 101 are all electrically connected to the computing controller and transmit data to form an obstacle scanning and detection system, wherein the lidar 102 is used for scanning and detection. The system displays information about the pedestrian crossing, and a laser diffuser 103 is used to project a red laser to warn of obstacles on the pedestrian crossing. Two LED screens 101 are used to display eye-catching text or symbols to remind oncoming vehicles whether there are obstacles on the pedestrian crossing and whether it is safe to pass. The laser diffuser 103 has a large diffusion range for the red laser beam, which can cover most of the area of ​​the pedestrian crossing, creating a three-dimensional, large-volume red beam scattering space at the pedestrian crossing location. Visually, it presents a three-dimensional red wall. Compared with the existing technology that simply uses LED screens 101 for warning, the warning range is larger and the warning effect is better, so that vehicles can be effectively warned from a distance from the traffic crossing device, brake in time, and ensure the safety of pedestrians crossing the road.

[0046] A cleaning rack 2 is slidably mounted on the electrical control box 1. The cleaning rack 2 is composed of a U-shaped sliding frame on the right side and two vertical cleaning strips symmetrically welded to the left end of the U-shaped sliding frame. Two cleaning brushes are fixed to the side of the two vertical cleaning strips that are close to each other by Velcro. The two cleaning brushes slide to the right and brush against the two sealed glass surfaces. Two connecting rods 202 are symmetrically rotatably connected to the protruding parts on the bottom side of the two vertical cleaning strips. The cleaning rack 2 is directly integrated and slidably mounted on the electrical control box 1. The two cleaning brushes on it can slide left and right to brush and clean the sealed glass surfaces of the two LED screens 101. The two connecting rods 202, the cleaning rack 2, the sliding ring 203, and the T-shaped support rod 206 are connected to form two crank-slider mechanisms. Through these two mechanisms, the sliding ring 203 can drive the cleaning rack 2 to slide left and right.

[0047] A vertical support member 3 is fixed to the bottom center of the electrical control box 1 by screws. A slip ring 203 is slidably fitted on the top section of the vertical support member 3. A T-shaped support rod 206 is welded to the right on the outer circumference of the slip ring 203. The tail ends of the two connecting rods 202 are rotatably connected to the head end of the T-shaped support rod 206. A pull rod 204 is welded downwards to the bottom side of the slip ring 203. A foot ring 205 is welded to the bottom of the pull rod 204. The foot ring 205 slides in engagement with the bottom section of the vertical support member 3. A tension spring is used to connect the T-shaped support rod 206 to the top of the vertical support member 3. The foot ring 205 is located on the bottom part of the vertical support 3 at a low height and is connected to the slip ring 203 via the pull rod 204. Thus, the staff can stand directly on the ground and use their feet to drive the foot ring 205 down, controlling the cleaning rack 2 to brush and clean the high-level sealed glass. Compared with the existing technology, it can save the trouble of having to climb up or use an external brush with a certain length to clean the LED screen 101. The operation is safer and more convenient. In addition, when the foot is lifted, the tension spring can pull and drive the foot ring 205, slip ring 203 and cleaning rack 2 to slide back to their original position.

[0048] In this embodiment of the disclosure,

[0049] Two T-shaped sliders 201 are symmetrically welded to the protruding parts on the bottom side of the two vertical cleaning strips, and two T-shaped grooves 104 are symmetrically opened on the bottom side of the electrical control box 1. The left and right ends of the two T-shaped grooves 104 are sealed, and the two T-shaped sliders 201 slide in cooperation with the two T-shaped grooves 104.

[0050] In this embodiment of the disclosure,

[0051] The vertical support component 3 is composed of a main vertical support pipe and two circular discs, one small and one large, symmetrically welded to the upper and lower ends of the main vertical support pipe. The upper circular disc is directly connected and fixed to the electrical control box 1, and the lower circular disc is locked and fixed to the ground at both ends of the pedestrian crossing by expansion screws.

[0052] Example 2, based on Example 1, such as Figure 6 - Figure 12 As shown, the vertical support 3 includes a vertical support tube 301, a mounting base 302, a rotating shaft tube 303, and a driven gear 304. Two mounting bases 302 are symmetrically welded to the upper and lower ends of the vertical support tube 301. The mounting base 302 is composed of two circular mounting discs and a short vertical support rod welded around the two circular mounting discs. The top mounting base 302 is directly connected and fixed to the electrical control box 1.

[0053] In this embodiment of the disclosure,

[0054] A rotating shaft tube 303 is rotatably mounted around two circular mounting discs on one side of the two mounting bases 302. A driven gear 304 is welded to the protruding part on the bottom side of the rotating shaft tube 303. The rotating shaft tube 303 surrounds the vertical support tube 301. The rotating shaft tube 303 is arranged around the outer surface of the vertical support 3 and is rotatably mounted. This means that when someone wants to stick an advertisement on the vertical support 3, it can only be pasted on the rotating shaft tube 303. The motor 4 can drive the rotating shaft tube 303 to rotate synchronously through the drive gear 401, which can easily and quickly tear the advertisement sticker to pieces. With the rotation of the rotating shaft tube 303, the remaining sticky paper can come into contact with the stainless steel bristles on the surface of the vertical support tube 301 and be brushed off by the stainless steel bristles. This makes the cleaning and removal of advertisement stickers on the vertical support tube 301 efficient and convenient, and greatly reduces the cost of removing sticker advertisements on traffic devices.

[0055] In this embodiment of the disclosure,

[0056] A motor 4 is installed on the top of the bottom circular mounting plate of the bottom mounting base 302 by screws. A drive gear 401 is mounted on the top of the shaft of the motor 4. The drive gear 401 meshes with a driven gear 304 for transmission.

[0057] In this embodiment of the disclosure,

[0058] A raised strip is arranged around the outer circumference of the vertical support tube 301, and stainless steel brush filaments are evenly arranged on the raised strip.

[0059] In this embodiment of the disclosure,

[0060] The rotating shaft tube 303 is made of stainless steel. The outer circumference of the rotating shaft tube 303 rotates and comes into contact with the stainless steel brush filaments on the raised strip.

[0061] In this embodiment of the disclosure,

[0062] A circular base plate is welded to the bottom of the bottom mounting bracket 302. The circular base plate is locked and fixed to the ground at both ends of the pedestrian crossing by expansion bolts.

[0063] The working principle of the obstacle scanning and detection system of the present invention is as follows: First, the lidar 102 scans the road surface. Then, the road surface and obstacles on the road surface reflect the laser beam of the lidar. The receiving module of lidar 102 receives the returned beam and transmits the reflected signal to the computing controller. The computing controller analyzes the distance and angle of the returned laser beam and generates a number of discrete coordinate values ​​in the radar coordinate system based on the distance and angle of the returned laser beam. Then, it generates three-dimensional environmental information around the sidewalk based on the three-dimensional spatial distribution of the discrete coordinate values.

[0064] If obstacles (such as pedestrians, non-motorized vehicles, and other animals and objects) are detected from the three-dimensional environmental information around the pedestrian crossing, the laser diffuser 103 is triggered to spread red warning lasers on the pedestrian crossing to remind oncoming vehicles to slow down when there are obstacles on the pedestrian crossing. At the same time, two LED screens 101 display red text or symbols to indicate that there are obstacles on the pedestrian crossing, reminding oncoming vehicles to slow down.

[0065] If no obstacles are detected from the three-dimensional environmental information around the pedestrian crossing, the laser diffuser 103 remains powered off, while the two LED screens 101 display green text or symbols to indicate that there are no obstacles on the pedestrian crossing and that pedestrians can cross safely.

[0066] The following points should be noted in this article:

[0067] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0068] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0069] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An intelligent pedestrian crossing device, comprising: An electrical control box (1) and a vertical support member (3); characterized in that the electrical control box (1) comprises: LED screen (101), laser radar (102) and laser diffuser (103); the electrical control box (1) is equipped with a computing controller, and the upper half of the left side wall of the electrical control box (1) is fixedly installed with laser radar (102) and laser diffuser (103) at vertical intervals; two LED screens (101) are symmetrically embedded on the front and rear side walls of the electrical control box (1), and the display side of the two LED screens (101) is covered with sealed glass; the laser radar (102), laser diffuser (103) and the two LED screens (101) are all electrically connected to the computing controller and transmit data to form an obstacle scanning and detection system, wherein the laser radar (102) is used to scan and detect the road surface information on the sidewalk, and the laser diffuser (103) is used to emit red laser to warn of the presence of obstacles on the sidewalk; A cleaning rack (2) is slidably mounted on the electrical control box (1). The cleaning rack (2) is composed of a U-shaped sliding frame on the right side and two vertical cleaning strips symmetrically welded to the left end of the U-shaped sliding frame. Two cleaning brushes are fixed to the side of the two vertical cleaning strips that are close to each other by Velcro. The two cleaning brushes slide to the right and come into contact with two sealed glass brushes. Two connecting rods (202) are symmetrically rotatably connected to the protruding parts on the bottom side of the two vertical cleaning strips. A vertical support member (3) is fixed to the middle of the bottom of the electrical control box (1) by screws. A slip ring (203) is slidably fitted on the top section of the vertical support member (3). A T-shaped support rod (206) is welded to the right on the outer circumference of the slip ring (203). The tail ends of the two connecting rods (202) are rotatably connected to the head end of the T-shaped support rod (206). A pull rod (204) is welded downward on the bottom side of the slip ring (203). A foot ring (205) is welded to the bottom of the pull rod (204). The foot ring (205) slides with the bottom section of the vertical support member (3). A tension spring is attached between the T-shaped support rod (206) and the top of the vertical support member (3).

2. The intelligent pedestrian crossing device according to claim 1, characterized in that, Two T-shaped sliders (201) are symmetrically welded on the bottom protruding parts of the two vertical cleaning strips, and two T-shaped grooves (104) are symmetrically opened on the bottom part of the electrical control box (1). The left and right ends of the two T-shaped grooves (104) are sealed, and the two T-shaped sliders (201) slide in cooperation with the two T-shaped grooves (104).

3. The intelligent pedestrian crossing device according to claim 1, characterized in that, The vertical support component (3) is composed of a main vertical support pipe and two circular discs, one small and one large, symmetrically welded to the upper and lower ends of the main vertical support pipe. The top circular disc is directly connected and fixed to the electrical control box (1), and the bottom circular disc is locked and fixed to the ground at both ends of the pedestrian crossing by expansion screws.

4. The intelligent pedestrian crossing device according to claim 1, characterized in that, The vertical support component (3) includes a vertical support tube (301), a mounting base (302), a rotating shaft tube (303), and a driven gear (304). The vertical support tube (301) has two mounting bases (302) symmetrically welded to its upper and lower ends. The mounting base (302) is composed of two circular mounting discs and a short vertical support rod welded around the two circular mounting discs. The top mounting base (302) is directly connected and fixed to the electrical control box (1).

5. The intelligent pedestrian crossing device according to claim 4, characterized in that, A rotating shaft tube (303) is rotatably mounted between two circular mounting discs on one side of the two mounting bases (302). A driven gear (304) is welded to the protruding part on the bottom side of the rotating shaft tube (303), and the rotating shaft tube (303) surrounds and wraps around the vertical support tube (301).

6. The intelligent pedestrian crossing device according to claim 5, characterized in that, A motor (4) is installed on the top of the bottom circular mounting plate of the mounting base (302) on the bottom side by screws. A drive gear (401) is mounted on the top of the shaft of the motor (4). The drive gear (401) meshes with a driven gear (304) for transmission.

7. The intelligent pedestrian crossing device according to claim 5, characterized in that, A raised strip is arranged around the outer circumference of the vertical support tube (301), and stainless steel brush filaments are evenly arranged on the raised strip.

8. The intelligent pedestrian crossing device according to claim 7, characterized in that, The rotating shaft tube (303) is made of stainless steel. The outer circumference of the rotating shaft tube (303) rotates and comes into contact with the stainless steel brush filaments on the raised strip.

9. The intelligent pedestrian crossing device according to claim 4, characterized in that, A circular base plate is welded to the bottom of the mounting base (302) on the bottom side. The circular base plate is locked and fixed to the ground at both ends of the pedestrian crossing by expansion screws.

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