Traffic signal light control system and traffic signal light

Abstract

The present invention discloses a traffic light control system and a traffic light, which relates to the technical field of traffic lights, and includes a lamp housing, a controller, and a haze sensor connected to the controller signal, wherein the controller is fixedly mounted on the inner wall of the lamp housing, a support plate is fixedly mounted on the inner wall of the lamp housing, a PCB lamp bead board electrically connected to the controller is fixedly mounted on the right side of the support plate, a plurality of LED lamp beads are mounted on the right side of the PCB lamp bead board, a refraction plate parallel to the PCB lamp bead board is arranged on the right side of the PCB lamp bead board, a plurality of arc-surface protrusions are arranged on the right side of the refraction plate, and the plurality of arc-surface protrusions correspond to the positions of the plurality of LED lamp beads, a transparent plate is arranged on the right side of the refraction plate, and a cavity is opened inside the transparent plate. The traffic light control system and the traffic light can improve the penetrating ability of the light of the traffic light in heavy fog, so that car drivers can more easily see the light of the traffic light in heavy fog.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic signal lamps, and in particular to a traffic signal lamp control system and a traffic signal lamp. Background Art

[0002] A traffic light group is a traffic management facility, usually composed of three colors of red, yellow and green lights, also known as traffic lights. It is used to indicate the priority and safety status of vehicles and pedestrians when crossing traffic intersections or road sections. It can control the flow of vehicles or pedestrians in different directions according to preset operation plans.

[0003] In recent years, due to environmental pollution, many areas have experienced smog weather, resulting in low visibility during traffic travel, making it difficult to see the light signals of traffic lights. As urban roads continue to widen, the distance between the stop line at the intersection and the opposite signal light is getting wider and wider, especially in foggy weather with low visibility, it is easy for car drivers to not see the lights of traffic lights, which seriously affects traffic efficiency and easily causes chaos at traffic intersections.

[0004] A traffic light and a traffic light control system are disclosed in the Chinese invention patent application publication specification CN113436451B, wherein LED signal lights and fog and haze signal lights are installed inside the light trough a and light trough b, respectively. In foggy weather, the controller controls the LED signal lights to turn off and turns on the fog and haze signal lights, so as to avoid traffic being affected by unclear signal lights in foggy weather. However, in foggy weather, the LED signal lights and fog and haze signal lights must be switched at the same time, which takes up a large space.

[0005] A traffic light control system for traffic engineering is disclosed in the Chinese invention patent application disclosure CN114419902A. It also uses the coordination and switching of LED signal lights and smog signal lights to improve the signal indication ability in smog weather. It has the same disadvantages as the above-mentioned patent solution.

[0006] In order to improve the penetrating ability of the light of the traffic light in foggy weather and enable car drivers to see the light of the traffic light more easily, a traffic light control system and a traffic light are proposed. Summary of the invention

[0007] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a traffic light control system and a traffic light, which can improve the penetrating ability of the light of the traffic light in heavy fog, making it easier for car drivers to see the light of the traffic light in heavy fog.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a traffic light control system, comprising a lamp housing, a controller and a haze sensor connected to the controller signal, the controller is fixedly mounted on the inner wall of the lamp housing, a support plate is fixed to the inner wall of the lamp housing, a PCB lamp bead board electrically connected to the controller is fixed to the right side of the support plate, and a plurality of LED lamp beads are installed on the right side of the PCB lamp bead board.

[0009] A refraction plate parallel to the PCB lamp bead board is provided on the right side, a plurality of arc-surface protrusions are provided on the right side of the refraction plate, and the plurality of arc-surface protrusions correspond to the positions of the plurality of LED lamp beads, a transparent plate is provided on the right side of the refraction plate, and a cavity is opened inside the transparent plate.

[0010] A piston cylinder is fixed on the left side of the support plate, a piston chamber A is provided inside the piston cylinder, a piston A is slidably arranged inside the piston chamber A, a square hole is provided in the middle of the support plate, a square rod is slidably arranged inside the square hole, the left end of the square rod is fixedly connected to the piston A, and the right end of the square rod is fixedly connected to the middle of the refraction plate.

[0011] The outer wall of the lamp housing is fixed with a bottom shell, and a piston tube, an electromagnet and a peristaltic pump are arranged inside the bottom shell. A connecting cavity and a piston cavity B are arranged inside the piston tube, and the connecting cavity is connected with the cavity through a pipeline. A piston B is slidably arranged inside the piston cavity B. The electromagnet is fixed to the inner bottom wall of the bottom shell, and the electromagnet is electrically connected to the controller. The controller provides a pulse current to the electromagnet. The working frequency of the electromagnet is 30 to 40 Hz when working. The top end of the telescopic rod of the electromagnet slides through the bottom of the piston tube and is fixedly connected to the piston B.

[0012] The peristaltic pump is fixed on the outer wall of the lamp housing and is electrically connected to the controller. Both ends of the pump tube of the peristaltic pump are respectively connected to the connecting cavity and the piston cavity A through hydraulic pipes. The cavity, the connecting cavity, the piston cavity A and the connecting pipes therebetween are all filled with transparent hydraulic medium.

[0013] Furthermore, a compression spring is provided inside the piston chamber B, the compression spring is sleeved on the outer surface of the telescopic rod of the electromagnet, and the compression spring is located between the piston B and the bottom wall of the piston chamber B.

[0014] Furthermore, a transparent cover is provided on the right side of the transparent plate, the transparent cover is fixed to the inner wall of the lamp housing, and a convex arc portion is provided on the upper half of the transparent cover.

[0015] Furthermore, a plurality of sliding holes are formed through the middle of the support plate, a sliding rod is slidably arranged inside each of the sliding holes, and the right end of each sliding rod is fixedly connected to the refraction plate.

[0016] Furthermore, a piston C is slidably arranged inside the left end of the piston chamber A, a threaded rod is threadedly connected to the left end of the piston cylinder, the right end of the threaded rod is ball-shaped, and the right end of the threaded rod is rotatably connected to the piston C.

[0017] The present application also proposes a traffic signal light, which includes the above-mentioned traffic signal light control system.

[0018] Compared with the prior art, the traffic light control system and the traffic light have the following beneficial effects:

[0019] 1. The traffic light control system and the traffic light, when in foggy weather, use a haze sensor to detect air visibility and feed back a visibility signal to a controller. When the air visibility is less than a threshold value set by the controller, the controller starts a peristaltic pump, and uses the peristaltic pump to pump the hydraulic medium in the cavity into the piston cavity A, so that the piston A, the square rod, the refraction plate and the arc-surface protrusion move to the right, and the arc-surface protrusion moves away from the LED lamp bead to a suitable position, until the light emitted by the multiple LED lamp beads is refracted into a high-concentration state through the arc-surface protrusion, so that the scattered light emitted by the multiple LED lamp beads can be refracted into multiple concentrated light beams, thereby improving the penetration ability of the light of the LED lamp bead in heavy fog; at the same time, since the hydraulic medium in the cavity is pumped into the piston cavity A The transparent plate is pressed against the piston B, which causes the pressure in the cavity to be lost, and the middle part of the transparent plate is sunken, so that the transparent plate and the transparent hydraulic medium inside the transparent plate form a concave mirror, so that the radiation angle of the multiple focused light beams becomes larger, thereby improving the radiation range of the multiple focused light beams; then, the controller provides a pulse current to the electromagnet, so that the telescopic rod of the electromagnet pulls the piston B downward at a frequency of 30 to 40 Hz, so that the hydraulic medium in the transparent plate flows back and forth between the cavity and the piston cavity B, so that the curvature of the surface of the transparent plate can be changed, so that the radiation angle of the multiple focused light beams can be changed back and forth, so that the multiple focused light beams can reciprocate within their radiation range, which is conducive to the car driver to observe the focused light beams, and then makes it easier for the car driver to see the lights of the traffic lights in the fog.

[0020] Second, the traffic light control system and the traffic light can also refract the light emitted by the LED lamp beads located on the upper part of the PCB lamp bead board obliquely downward through the convex arc portion provided on the upper part of the transparent cover, so as to focus the light in the direction of the car driver, further ensuring that the car driver can see the light of the traffic light in foggy weather.

[0021] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A side cross-sectional view of the internal structure of the lamp housing of the present invention;

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the local structure in;

[0024] Figure 3 It is a front view of the lamp housing of the present invention;

[0025] Figure 4 This is the state diagram of the traffic light control system in foggy weather;

[0026] Figure 5 For the present invention Figure 4 Schematic diagram of the local structure;

[0027] Figure 6 This is a comparison chart of the light refraction state of the LED lamp beads of the traffic light control system in normal use and in foggy weather;

[0028] Figure 7 This is a traffic light control system, showing the light refraction effect of LED lamp beads through a transparent cover in foggy weather;

[0029] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the transparent cover in the present invention;

[0030] Fig. 9 1 is an electrical connection diagram of the electrical components in the present invention.

[0031] In the figure:

[0032] 1. lamp housing; 101. transparent cover; 1011. arc portion;

[0033] 2. Haze sensor;

[0034] 3. Support plate;

[0035] 31, PCB lamp bead board; 311, LED lamp bead;

[0036] 32. refraction plate; 321. curved convex surface;

[0037] 33. Piston cylinder; 331. Piston chamber A; 332. Piston A; 333. Piston C; 334. Threaded rod;

[0038] 34. Square rod; 35. Sliding hole; 36. Sliding rod;

[0039] 4. Transparent plate; 41. Cavity;

[0040] 5. Bottom shell;

[0041] 6. Piston tube; 61. Communication chamber; 62. Piston chamber B; 63. Piston B; 64. Compression spring;

[0042] 7. Electromagnet; 8. Peristaltic pump; 9. Controller. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 9 The present invention provides a technical solution: a traffic signal light control system, comprising a lamp housing 1, a controller 9 and a haze sensor 2 connected to the controller 9 by signal, the controller 9 is fixedly mounted on the inner wall of the lamp housing 1, a support plate 3 is fixed to the inner wall of the lamp housing 1, a PCB lamp bead board 31 electrically connected to the controller 9 is fixed to the right side of the support plate 3, a plurality of LED lamp beads 311 are mounted on the right side of the PCB lamp bead board 31, the LED lamp beads 311 are red, green and yellow three-color lamp beads, and the controller 9 controls the conversion state of the light color so that the plurality of LED lamp beads 311 are simultaneously converted to red, green or yellow to provide a traffic signal.

[0045] A refraction plate 32 parallel to the PCB lamp bead board 31 is provided on the right side thereof, a plurality of arc-surface protrusions 321 are provided on the right side surface of the refraction plate 32, and the plurality of arc-surface protrusions 321 correspond to the positions of the plurality of LED lamp beads 311, a transparent plate 4 is provided on the right side of the refraction plate 32, a cavity 41 is provided inside the transparent plate 4, and the refraction plate 32, the arc-surface protrusions 321 and the transparent plate 4 can be made of acrylic material with high transparency.

[0046] A piston cylinder 33 is fixed to the left side of the support plate 3, a piston cavity A331 is provided inside the piston cylinder 33, a piston A332 is slidably provided inside the piston cavity A331, a square hole is provided in the middle of the support plate 3, a square rod 34 is slidably provided inside the square hole, the left end of the square rod 34 is fixedly connected to the piston A332, and the right end of the square rod 34 is fixedly connected to the middle of the refraction plate 32. When the piston A332 slides left and right inside the piston cavity A331, the piston A332 moves left and right synchronously with the square rod 34, the refraction plate 32 and the arc-surface protrusion 321.

[0047] Please refer to Figure 2The outer wall of the lamp housing 1 is fixed with a bottom shell 5, and a piston tube 6, an electromagnet 7 and a peristaltic pump 8 are arranged inside the bottom shell 5. A connecting cavity 61 and a piston cavity B62 are arranged inside the piston tube 6. The connecting cavity 61 is connected to the cavity 41 through a pipeline. A piston B63 is slidably arranged inside the piston cavity B62. The electromagnet 7 is fixed to the inner bottom wall of the bottom shell 5, and the electromagnet 7 is electrically connected to the controller 9. The controller 9 provides a pulse current to the electromagnet 7. The working frequency of the electromagnet 7 is 30 to 40 Hz when working. The top end of the telescopic rod of the electromagnet 7 slides through the bottom of the piston tube 6 and is fixedly connected to the piston B63.

[0048] The controller 9 is a programmable single chip microcomputer controller, and the electromagnet 7 is an electromagnet of the brand AH-0826B-12V of Anhe Electric.

[0049] The peristaltic pump 8 is fixed on the outer wall of the lamp housing 1, and the peristaltic pump 8 is electrically connected to the controller 9. The two ends of the pump tube of the peristaltic pump 8 are respectively connected to the connecting chamber 61 and the piston chamber A331 through hydraulic pipes. The cavity 41, the connecting chamber 61, the piston chamber A331 and the connecting pipes therebetween are all filled with transparent hydraulic medium. The transparent hydraulic medium can be selected from Kunlun brand L-HM46 colorless and transparent hydraulic oil.

[0050] It should be noted that the peristaltic pump 8 is a pump composed of a motor, a pump head and a pump tube (hose). The pump tube is rotated and squeezed by multiple rotating shafts in the pump head to make the hydraulic medium in the pump tube flow. The flow direction of the hydraulic medium depends on the direction of the motor. When the peristaltic pump 8 is not working, the two ends of its pump tube are not connected. In order to improve the pumping accuracy of the peristaltic pump 8 for the hydraulic medium, the peristaltic pump 8 can select a servo peristaltic pump with a servo motor as a driving part.

[0051] Through the above technical solution, when it is foggy, the haze sensor 2 is used to detect the visibility of the air, and the visibility signal is fed back to the controller 9. When the visibility of the air is less than the threshold value set by the controller 9, the peristaltic pump 8 is started by the controller 9, and the hydraulic medium in the cavity 41 is pumped into the piston cavity A331 by the peristaltic pump 8, so that the piston A332, the square rod 34, the refraction plate 32 and the arc-surface protrusion 321 move to the right, and the arc-surface protrusion 321 moves away from the LED lamp bead 311 to a suitable position until the light emitted by the multiple LED lamp beads 311 is refracted into a high-concentration state through the arc-surface protrusion 321, so that the scattered light emitted by the multiple LED lamp beads 311 can be refracted into multiple concentrated light beams, thereby improving the penetration ability of the light of the LED lamp bead 311 in heavy fog (please refer to Figure 2 , Figure 4 , Figure 5 and Figure 6); at the same time, since the hydraulic medium in the cavity 41 is pumped into the piston cavity A331, the cavity 41 loses pressure, and the middle part of the transparent plate 4 is sunken, so that the transparent plate 4 and the transparent hydraulic medium inside it form a concave mirror, so that the radiation angle of the multiple focused light beams becomes larger, thereby increasing the radiation range of the multiple focused light beams; then, the peristaltic pump 8 is turned off, and the controller 9 provides a pulse current to the electromagnet 7, so that the telescopic rod of the electromagnet 7 pulls the piston B63 downward at a frequency of 30 to 40 Hz, so that the hydraulic medium in the transparent plate 4 flows back and forth between the cavity 41 and the piston cavity B62, so that the curvature of the surface of the transparent plate 4 can be changed, so that the radiation angle of the multiple focused light beams changes back and forth, and the multiple focused light beams move back and forth within their radiation range, which is conducive to the car driver to observe the focused light beams, and then makes it easier for the car driver to see the lights of the traffic lights in the fog.

[0052] Based on the above principle, when the fog recedes, the controller 9 makes the peristaltic pump 8 rotate in the opposite direction, so that the hydraulic medium in the piston chamber A331 flows back into the cavity 41, until the refraction plate 32 moves to the left to the starting position and the transparent plate 4 returns to the flat state, that is, the signal light returns to the normal use state (such as Figure 1 shown).

[0053] Please refer to Figure 2 A compression spring 64 is provided inside the piston chamber B62, and the compression spring 64 is sleeved on the outer surface of the telescopic rod of the electromagnet 7, and the compression spring 64 is located between the piston B63 and the bottom wall of the piston chamber B62. The compression spring 64 provides an upward thrust for the piston B63, so that the telescopic rod of the electromagnet 7 can maintain the reset ability of the piston B63 when the piston B63 is intermittently pulled downward by the telescopic rod.

[0054] For further information, please refer to Figure 1 , Figure 7 and Figure 8 A transparent cover 101 is provided on the right side of the transparent plate 4 . The transparent cover 101 is fixed to the inner wall of the lamp housing 1 . A convex arc portion 1011 is provided on the upper half of the transparent cover 101 .

[0055] Because the light emitted by the LED lamp bead 311 located in the upper part of the PCB lamp bead board 31 is refracted into multiple focused light beams by the arc protrusion 321, and then refracted by the transparent plate 4 to radiate obliquely upward (such as Figure 6 and Figure 7As shown in the figure, it is not conducive to the observation of the drivers on the ground. Therefore, the convex curved surface 1011 provided on the upper part of the transparent cover 101 can refract the concentrated light beam radiated obliquely upward to obliquely downward, which is conducive to the observation of the drivers on the ground, and further ensures that the drivers can see the light of the signal light in foggy weather. In addition, in a non-foggy state, the convex curved surface 1011 provided on the upper part of the transparent cover 101 can also refract the light emitted by the LED lamp beads 311 located on the upper part of the PCB lamp bead board 31 to obliquely downward, so that the light is concentrated in the direction of the driver, which is conducive to the driver on the ground to observe the light signal.

[0056] For further solutions, please refer to Figure 1 and Figure 5 A plurality of sliding holes 35 are formed through the middle of the support plate 3, a sliding rod 36 is slidably disposed inside each sliding hole 35, and the right end of each sliding rod 36 is fixedly connected to the refraction plate 32. This solution is used to keep the refraction plate 32 parallel to the support plate 3 when the refraction plate 32 moves on the right side of the support plate 3.

[0057] Please refer to Figure 1 As a further solution, a piston C333 is slidably disposed inside the left end of the piston chamber A331, a threaded rod 334 is threadedly connected to the left end of the piston cylinder 33, the right end of the threaded rod 334 is spherical, and the right end of the threaded rod 334 is rotatably connected to the piston C333. According to this solution, during the assembly process of the system, the piston C333 can be moved left and right by rotating the threaded rod 334, and then the hydraulic medium in the piston chamber A331 pushes the piston A332, the square rod 34 and the deflection plate 32 to move left and right, so as to facilitate the adjustment of the initial position of the deflection plate 32.

[0058] In addition, the present application also proposes a traffic light, which includes the above-mentioned traffic light control system.

[0059] The working principle has been shown above. Based on the implementation spirit of the above implementation scheme, the electromagnet 7, peristaltic pump 8, controller 9 and other related supporting technologies mentioned in the traffic light control system can be implemented through existing electrical technology and programming technology, and will not be described in detail in this application.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A traffic signal light control system, comprising a lamp housing (1), a controller (9) and a haze sensor (2) connected to the controller (9) by signal, wherein the controller (9) is fixedly mounted on the inner wall of the lamp housing (1), a support plate (3) is fixedly mounted on the inner wall of the lamp housing (1), a PCB lamp bead board (31) electrically connected to the controller (9) is fixedly mounted on the right side surface of the support plate (3), and a plurality of LED lamp beads (311) are mounted on the right side surface of the PCB lamp bead board (31), characterized in that: A refraction plate (32) parallel to the PCB lamp bead plate (31) is provided on the right side thereof, a plurality of arc-surface protrusions (321) are provided on the right side surface of the refraction plate (32), and the plurality of arc-surface protrusions (321) correspond to the positions of the plurality of LED lamp beads (311), a transparent plate (4) is provided on the right side of the refraction plate (32), and a cavity (41) is provided inside the transparent plate (4); A piston cylinder (33) is fixed on the left side of the support plate (3), a piston cavity A (331) is provided inside the piston cylinder (33), a piston A (332) is slidably provided inside the piston cavity A (331), a square hole is provided in the middle of the support plate (3), a square rod (34) is slidably provided inside the square hole, the left end of the square rod (34) is fixedly connected to the piston A (332), and the right end of the square rod (34) is fixedly connected to the middle of the refraction plate (32); The outer wall of the lamp housing (1) is fixed with a bottom shell (5), the interior of the bottom shell (5) is provided with a piston tube (6), an electromagnet (7) and a peristaltic pump (8), the interior of the piston tube (6) is provided with a connecting cavity (61) and a piston cavity B (62) which are connected to each other, the connecting cavity (61) is connected with the cavity (41) through a pipeline, a piston B (63) is slidably arranged inside the piston cavity B (62), the electromagnet (7) is fixed to the inner bottom wall of the bottom shell (5), and the electromagnet (7) is electrically connected to a controller (9), the controller (9) provides a pulse current to the electromagnet (7), the working frequency of the electromagnet (7) when working is 30 to 40 Hz, and the top end of the telescopic rod of the electromagnet (7) slides through the bottom of the piston tube (6) and is fixedly connected to the piston B (63); The peristaltic pump (8) is fixed to the outer wall of the lamp housing (1), and the peristaltic pump (8) is electrically connected to the controller (9), and the two ends of the pump pipe of the peristaltic pump (8) are respectively connected to the connecting chamber (61) and the piston chamber A (331) through hydraulic pipes; The cavity (41), the connecting cavity (61), the piston cavity A (331) and the connecting pipes therebetween are all filled with a transparent hydraulic medium.

2. A traffic light control system according to claim 1, characterized in that: A plurality of sliding holes (35) are provided through the middle of the support plate (3), a sliding rod (36) is slidably arranged inside each of the sliding holes (35), and the right end of each sliding rod (36) is fixedly connected to the refraction plate (32).

3. A traffic light control system according to claim 1, characterized in that: A piston C (333) is slidably disposed inside the left end of the piston chamber A (331), and a threaded rod (334) is threadedly connected to the left end of the piston cylinder (33), the right end of the threaded rod (334) is ball-shaped, and the right end of the threaded rod (334) is rotatably connected to the piston C (333).

4. A traffic light control system according to claim 1, characterized in that: A compression spring (64) is provided inside the piston chamber B (62). The compression spring (64) is sleeved on the outer surface of the telescopic rod of the electromagnet (7), and the compression spring (64) is located between the piston B (63) and the bottom wall of the piston chamber B (62).

5. A traffic light control system according to claim 1, characterized in that: A transparent cover (101) is provided on the right side of the transparent plate (4); the transparent cover (101) is fixed to the inner wall of the lamp housing (1); and a convex arc portion is provided on the upper half of the transparent cover (101).

6. A traffic signal light, characterized in that: Including the traffic light control system as claimed in claim 1.

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