Traffic signal lamp

Abstract

The utility model discloses a traffic signal lamp, and relates to the technical field of traffic signal control. The traffic signal lamp comprises a master control device; the controlled end of the prompting device is electrically connected with the output end of the main control device; the prompt device is used for receiving the prompt control signal output by the master control device and outputting a corresponding prompt signal; the output end of the infrared array detection device is electrically connected with the main control device; the infrared array detection device is used for detecting movement of people in a preset area and outputting a corresponding infrared detection signal; wherein the main control device is used for receiving the infrared detection signal and outputting a corresponding prompt control signal to the prompt device. The utility model aims to improve the automation degree and the control accuracy of the traffic signal lamp.

Description

Technical Field

[0001] This utility model relates to the field of traffic signal control technology, and in particular to a traffic signal light. Background Technology

[0002] In real-world traffic, some city intersections or crosswalks are equipped with pedestrian crossing buttons. When a pedestrian presses the button, the system will change the traffic light at the next appropriate time, providing a safe window for the pedestrian to cross the road. Additionally, pedestrian crossing buttons are installed during off-peak hours or on sections of road with low traffic volume where a continuously green light would cause unnecessary waiting for vehicles. The traffic light status can only be changed by triggering the button when a pedestrian needs to cross the road, thereby optimizing traffic efficiency and reducing energy waste.

[0003] However, pedestrian crossing buttons require manual pressing, which is inconvenient, especially for the elderly, children, or people with special needs. Utility Model Content

[0004] The main purpose of this utility model is to provide a traffic signal light that improves the automation level and control accuracy of traffic signals.

[0005] To achieve the above objectives, the present invention provides a traffic signal light, which includes:

[0006] Main control device;

[0007] A prompting device, wherein the controlled end of the prompting device is electrically connected to the output end of the main control device; the prompting device is used to receive the prompting control signal output by the main control device and output a corresponding prompting signal.

[0008] An infrared array detection device, the output of which is electrically connected to the main control device; the infrared array detection device is used to detect the movement of people within a preset area and output corresponding infrared detection signals;

[0009] The main control device is used to receive the infrared detection signal and output a corresponding prompt control signal to the prompt device.

[0010] In one embodiment, the infrared array detection device includes:

[0011] A first infrared detection device is disposed at a first height on a first surface of a traffic signal light body. The detection angle of the first infrared detection device is a horizontal first detection angle. The output terminal of the first infrared detection device is electrically connected to the main control device. The first infrared detection device is used to output a first infrared detection signal to the main control device.

[0012] The second infrared detection device is disposed at a second height on the first surface of the traffic signal light body. The detection angle of the second infrared detection device is a horizontal downward second detection angle. The output end of the second infrared detection device is electrically connected to the main control device. The second infrared detection device is used to output a second infrared detection signal to the main control device.

[0013] The third infrared detection device is set at a third height on the first surface of the traffic signal light body. The detection angle of the third infrared detection device is a horizontal downward third detection angle. The output terminal of the third infrared detection device is electrically connected to the main control device. The third infrared detection device is used to output a third infrared detection signal to the main control device.

[0014] The third detection angle is greater than the second detection angle.

[0015] In one embodiment, the infrared array detection device includes:

[0016] The fourth infrared detection device is set at a first height on the first surface of the traffic signal light body. The detection distance of the fourth infrared detection device is a first horizontal detection distance. The output terminal of the fourth infrared detection device is electrically connected to the main control device. The fourth infrared detection device is used to output a fourth infrared detection signal to the main control device.

[0017] A fifth infrared detection device is provided, which is installed at a second height on the first surface of the traffic signal light body. The detection distance of the fifth infrared detection device is a horizontal second detection distance. The output terminal of the fifth infrared detection device is electrically connected to the main control device. The fifth infrared detection device is used to output a fifth infrared detection signal to the main control device.

[0018] The second detection distance is less than the first detection distance.

[0019] In one embodiment, the infrared array detection device further includes:

[0020] A sixth infrared detection device is provided, which is installed at a first height on the second surface of the traffic signal light body. The detection angle of the sixth infrared detection device is a horizontal first detection angle. The output terminal of the sixth infrared detection device is electrically connected to the main control device. The sixth infrared detection device is used to output a sixth infrared detection signal to the main control device.

[0021] The second surface and the first surface are opposite surfaces.

[0022] In one embodiment, the traffic light further includes a temperature detection device, the output of which is electrically connected to the input of the main control device; the temperature detection device is used to detect the temperature within the preset area and output a temperature detection signal.

[0023] The main control device is also used to receive the temperature detection signal and output a corresponding prompt control signal to the prompt device.

[0024] In one embodiment, the traffic light further includes a photosensitive detection device, the output of which is electrically connected to the input of the main control device; the photosensitive detection device is used to detect the ambient light of the traffic light and output a photosensitive detection signal.

[0025] The main control device is also used to receive the photosensitive detection signal and output the corresponding light intensity adjustment signal to the prompting device.

[0026] In one embodiment, the photosensitive detection device includes a photosensitive detection circuit, which includes a first resistor, a second resistor, a third resistor, a fourth resistor, a capacitor, and a photodiode.

[0027] Wherein, the first end of the first resistor is electrically connected to the power supply terminal; the second end of the first resistor is electrically connected to the anode of the photodiode and the first end of the second resistor; the cathode of the photodiode is electrically connected to the ground terminal; the second end of the second resistor is electrically connected to the first end of the third resistor and the first end of the fourth resistor; the second end of the third resistor is electrically connected to the first end of the capacitor and the input terminal of the main control device; and the second end of the fourth resistor is electrically connected to the second end of the capacitor and the ground terminal.

[0028] In one embodiment, the traffic light further includes a photovoltaic power source and a battery, with the output terminal of the photovoltaic power source electrically connected to the input terminal of the battery and the warning device, respectively.

[0029] In one embodiment, the traffic light further includes a button triggering device, the output of which is electrically connected to the input of the main control device; the button triggering device is used to output a corresponding button triggering signal when triggered.

[0030] The main control device is also used to receive the button trigger signal and output a corresponding prompt control signal to the prompt device.

[0031] This utility model's technical solution effectively improves the automation level and control accuracy of traffic lights by employing a traffic light comprising a main control device, a prompting device, and an infrared array detection device. The infrared array detection device detects people within a preset area and outputs corresponding infrared detection signals to the main control device. The main control device receives these infrared detection signals, determines the movement direction of people within the preset area, and then outputs corresponding prompting control signals to the prompting device. The prompting device receives these prompting control signals and outputs corresponding prompting signals, enabling pedestrians and vehicles to pass smoothly according to the prompts, thus effectively avoiding the need for manual button triggering. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the traffic signal light module of this utility model;

[0034] Figure 2 This is a schematic diagram of a module of a traffic signal light according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of a module of another embodiment of the traffic signal light of this utility model;

[0036] Figure 4 This is a schematic diagram of a module of another embodiment of the traffic signal light of this utility model;

[0037] Figure 5 This is a circuit diagram of an embodiment of the traffic signal light of this utility model.

[0038] Explanation of icon numbers:

[0039] 10. Main control device; 20. Prompt device; 30. Infrared array detection device; 31. First infrared detection device; 32. Second infrared detection device; 33. Third infrared detection device; 34. Fourth infrared detection device; 35. Fifth infrared detection device; 40. Temperature detection device; 50. Photosensitive detection device; 60. Button triggering device.

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0044] In real-world traffic, some city intersections or crosswalks are equipped with pedestrian crossing buttons. When a pedestrian presses the button, the system will change the traffic light at the next appropriate time, providing a safe window for the pedestrian to cross the road. Additionally, pedestrian crossing buttons are installed during off-peak hours or on sections of road with low traffic volume where a continuously green light would cause unnecessary waiting for vehicles. The traffic light status can only be changed by triggering the button when a pedestrian needs to cross the road, thereby optimizing traffic efficiency and reducing energy waste.

[0045] However, pedestrian crossing buttons require manual pressing, which is inconvenient, especially for the elderly, children, or people with special needs.

[0046] To solve the above problems, refer to Figures 1 to 5 This utility model proposes a traffic signal light, which includes:

[0047] Main control device 10;

[0048] The prompting device 20 is electrically connected to the output terminal of the main control device 10; the prompting device 20 is used to receive the prompting control signal output by the main control device 10 and output a corresponding prompting signal.

[0049] An infrared array detection device 30 is provided, the output of which is electrically connected to the main control device 10. The infrared array detection device 30 is used to detect the movement of people within a preset area and output corresponding infrared detection signals.

[0050] The main control device 10 is used to receive the infrared detection signal and output a corresponding prompt control signal to the prompt device 20.

[0051] In this embodiment, the main control device 10 can be implemented using a main controller, such as a DSP (Digital Signal Processor), FPGA (Field Programmable Gate Array), MCU (Microcontroller Unit), or SOC (System-on-Chip). In the traffic light, the main control device is responsible not only for processing input information from various sensors and communication devices, but also for controlling the actions of components such as the prompting device 20 and the alarm, ensuring the stability and response speed of the traffic light operation. The MCU, which integrates a CPU, memory, and various peripheral interfaces, is an economical and efficient choice for implementing basic logic control and data processing.

[0052] In this embodiment, the prompting device 20 can be implemented using a voice prompting device, a digital display prompting device, or a color display prompting device. Taking a color display prompting device as an example, the prompting device 20 includes both vehicle color prompting devices and pedestrian color prompting devices. It is understood that different colors in the color prompting device represent different passage states that vehicles and pedestrians can perform. For example, in this embodiment, red in the color display prompting device is set to prohibit passage, while green is set to allow passage. The prompting signals output by the vehicle color prompting device and the prompting signals output by the pedestrian color prompting device are two different states. When the prompting signal output by the vehicle color prompting device is green (allowing communication), the prompting signal output by the color display prompting device is red (prohibiting passage). Furthermore, the prompting signals output by the prompting device 20 are all controlled by the prompting control signal output by the main control device 10. For example, the prompting control signal output by the main control device 10 is red for the vehicle color prompting signal and green for the pedestrian color prompting signal. The prompting device 20 will change the prompting signal output by the vehicle color prompting device to red and the prompting signal output by the pedestrian color prompting device to green according to the prompting signal output by the main control circuit.

[0053] In this embodiment, the infrared array detection device 30 can be implemented using multiple infrared detection devices with different installation methods, thereby outputting infrared detection signals corresponding to personnel movement. It is understood that an infrared detection device is a device used to detect changes in human body heat or temperature, working by capturing changes in infrared radiation emitted by all warm objects in the environment. However, the infrared detection device itself does not have the ability to track or record human movement trajectories. It can only detect whether a moving heat source enters or leaves its field of view within a certain area and trigger the corresponding infrared detection signal. Therefore, in this embodiment, by setting up the infrared array detection device 30, it detects whether there are moving heat sources at different locations within a preset area, and then outputs the corresponding infrared detection signal to the main control device 10. This allows the main control device 10 to determine whether personnel movement within the preset area needs to cross the zebra crossing based on the corresponding infrared detection signal, avoiding misjudgments due to frequent personnel movement.

[0054] Optionally, the infrared array detection device 30 includes:

[0055] The first infrared detection device 31 is disposed at a first height on the first surface of the traffic signal light body. The detection angle of the first infrared detection device 31 is a horizontal first detection angle. The output end of the first infrared detection device 31 is electrically connected to the main control device 10. The first infrared detection device 31 is used to output a first infrared detection signal to the main control device 10.

[0056] The second infrared detection device 32 is disposed at a second height on the first surface of the traffic signal light body. The detection angle of the second infrared detection device 32 is a horizontal downward second detection angle. The output end of the second infrared detection device 32 is electrically connected to the main control device 10. The second infrared detection device 32 is used to output a second infrared detection signal to the main control device 10.

[0057] The third infrared detection device 33 is disposed at a third height on the first surface of the traffic signal light body. The detection angle of the third infrared detection device 33 is a horizontal downward third detection angle. The output end of the third infrared detection device 33 is electrically connected to the main control device 10. The third infrared detection device 33 is used to output a third infrared detection signal to the main control device 10.

[0058] The third detection angle is greater than the second detection angle.

[0059] In this embodiment, the first infrared detection device 31, the second infrared detection device 32, and the third infrared detection device 33 can all be implemented using pyroelectric sensors. It is understood that the detection ranges of the first infrared detection device 31, the second infrared detection device 32, and the third infrared detection device 33 are all different. The first infrared detection device 31, the second infrared detection device 32, and the third infrared detection device 33 can be implemented using the same type of infrared detection device, and their detection range can be changed by adjusting their detection angle. For example, multiple pyroelectric sensors with a detection distance of 6 meters can be used as the first infrared detection device 31, the second infrared detection device 32, and the third infrared detection device 33. The first infrared detection device 31 is positioned at a first height on the first surface of the traffic light body. The first surface is where the traffic light body faces pedestrians waiting to cross; the first height can be set to 0.2 meters. Furthermore, by being horizontally positioned and at a relatively low first height, the first infrared detection device 31 can effectively detect the presence of a moving heat source within a preset area, thereby outputting a first infrared detection signal to the main control device 10, so that the main control device 10 can confirm the presence of a pedestrian within the preset area. The second infrared detection device 32 is positioned at a second height on the first surface of the traffic light body. This second height is higher than the first height. The detection angle of the second infrared detection device 32 is set to a horizontally downward second infrared detection angle. It is understood that the second infrared detection device 32 and the first infrared detection device 31 can detect the same distance because the detection direction of the second infrared detection device 32 is horizontally downward. Therefore, the horizontal detection distance of the second infrared detection device 32 is shorter. It is understood that if the second infrared detection signal output by the second infrared detection device 32 confirms the presence of a heat source within this range, it can confirm that the pedestrian intends to cross. The third infrared detection device 33 is positioned at a third height on the first surface of the traffic light body. This third height is higher than the second height. The detection angle of the third infrared detection device 33 is set to a horizontally downward third infrared detection angle, and this third infrared detection angle is greater than the second infrared detection angle. Similarly, it is understood that the horizontal distance that the third infrared detection device 33 can detect is less than that of the second infrared detection device 32. Therefore, by setting the third infrared detection device 33, the pedestrian's intention to cross can be further confirmed. The main control device 10 accurately controls the prompting device 20 to perform corresponding actions, effectively improving the automation and accuracy of traffic light operation.

[0060] Optionally, the infrared array detection device 30 includes:

[0061] The fourth infrared detection device 34 is disposed at a first height on the first surface of the traffic signal light body. The detection distance of the fourth infrared detection device 34 is a horizontal first detection distance. The output terminal of the fourth infrared detection device 34 is electrically connected to the main control device 10. The fourth infrared detection device 34 is used to output a fourth infrared detection signal to the main control device 10.

[0062] The fifth infrared detection device 35 is disposed at a second height on the first surface of the traffic signal light body. The detection distance of the fifth infrared detection device 35 is a horizontal second detection distance. The output end of the fifth infrared detection device 35 is electrically connected to the main control device 10. The fifth infrared detection device 35 is used to output a fifth infrared detection signal to the main control device 10.

[0063] The second detection distance is less than the first detection distance.

[0064] In this embodiment, the infrared array detection device 30 can also be implemented using pyroelectric sensors with different detection distances. The fourth infrared detection device 34 is positioned at a first height on the first surface of the traffic light body, with a horizontal first detection distance. This first detection distance can be set to 7 meters. The fourth and fifth infrared detection devices are positioned at a second height on the first surface of the traffic light body, with a horizontal second detection distance. In this embodiment, the first and second heights can be the same or different, depending on actual needs; the second detection distance is 3 meters. It can be understood that by using infrared detection devices with different detection distances, the pedestrians' intention to cross within the preset detection area can be confirmed, allowing the main control device 10 to accurately control the prompting device 20 to perform corresponding actions.

[0065] By employing a traffic light system comprising a main control unit 10, a prompting device 20, and an infrared array detection device 30, the automation level and control accuracy of the traffic light are effectively improved. The infrared array detection device 30 detects people within a preset area and outputs a corresponding infrared detection signal to the main control unit 10. The main control unit 10 receives the corresponding infrared detection signal, determines the movement direction of people within the preset area, and then outputs a corresponding prompting control signal to the prompting device 20. The prompting device 20 receives the corresponding prompting control signal and outputs a corresponding prompting signal, enabling pedestrians and vehicles to pass smoothly according to the prompting signal, thus effectively avoiding the need for manual button triggering.

[0066] In one embodiment of this utility model, the infrared array detection device 30 further includes:

[0067] The sixth infrared detection device is set at a first height on the second surface of the traffic signal light body. The detection angle of the sixth infrared detection device is a horizontal first detection angle. The output end of the sixth infrared detection device is electrically connected to the main control device 10. The sixth infrared detection device is used to output a sixth infrared detection signal to the main control device 10.

[0068] The second surface and the first surface are opposite surfaces.

[0069] In this embodiment, the sixth infrared detection device can be implemented using a pyroelectric sensor. The second surface is the side of the traffic light body facing the pedestrian crossing or zebra crossing. It is understood that the sixth detection device is used to detect whether there are pedestrians on the pedestrian crossing or zebra crossing, so that the main control device 10 controls the prompting device 20 to output a corresponding prompting control signal, maintaining or changing the prompting signal output by the prompting device 20. The detection area of ​​the sixth infrared detection device needs to completely cover the pedestrian crossing or zebra crossing to avoid incomplete detection. Therefore, the sixth infrared detection device needs to be selected according to the actual application scenario. For example, it can be selected based on the length and width of the pedestrian crossing or zebra crossing.

[0070] refer to Figure 4 In one embodiment of the present invention, the traffic light further includes a temperature detection device 40, the output terminal of which is electrically connected to the input terminal of the main control device 10; the temperature detection device 40 is used to detect the temperature within the preset area and output a temperature detection signal.

[0071] The main control device 10 is also used to receive the temperature detection signal and output a corresponding prompt control signal to the prompt device 20.

[0072] In this embodiment, the temperature detection device 40 can be implemented using a microbolometer, a thermopile array, or a dual-color infrared sensor. Taking a thermopile array as an example, the temperature detection device 40 is a non-contact temperature sensor that uses multiple thermocouples connected in series to generate a voltage output proportional to the received infrared energy. Constructing a multi-element thermopile array allows for simultaneous measurement of the temperature at multiple points within a certain area, and the data can be processed by algorithms to determine the presence of a human body. For small animals, due to their small size and typically lower temperature than humans, it is unlikely to trigger a consistent response across the entire array. The use of an additional temperature detection device 40 helps avoid misjudgments by traffic lights.

[0073] refer to Figure 4 and Figure 5In one embodiment of the present invention, the traffic light further includes a photosensitive detection device 50, the output terminal of which is electrically connected to the input terminal of the main control device 10; the photosensitive detection device 50 is used to detect the ambient light of the traffic light and output a photosensitive detection signal.

[0074] The main control device 10 is also used to receive the photosensitive detection signal and output the corresponding light intensity adjustment signal to the prompting device 20.

[0075] In this embodiment, the photosensitive detection device 50 can be implemented using photodiodes, photoresistors, phototransistors, and corresponding circuit structures. It is understood that, to achieve stable alert signal effects and conserve power, the photosensitive detection device 50 is used to detect ambient light. When the ambient light is high, the main control device 10 outputs a corresponding light intensity adjustment signal to the alert device 20 based on the photosensitive detection signal, causing the alert device 20 to operate at higher power, thereby ensuring that the alert signal can be accurately received. When the ambient light is low, the main control device 10 outputs a corresponding light intensity adjustment signal to the alert device 20 based on the photosensitive detection signal, causing the alert device 20 to operate at lower power, thereby reducing power consumption while ensuring that the alert signal can be accurately received.

[0076] Optionally, the photosensitive detection device 50 includes a photosensitive detection circuit, which includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a capacitor C, and a photodiode D.

[0077] Wherein, the first end of the first resistor R1 is electrically connected to the power supply terminal; the second end of the first resistor R1 is electrically connected to the anode of the photodiode D and the first end of the second resistor R2; the cathode of the photodiode D is electrically connected to the ground terminal; the second end of the second resistor R2 is electrically connected to the first end of the third resistor R3 and the first end of the fourth resistor R4; the second end of the third resistor R3 is electrically connected to the first end of the capacitor C and the input terminal of the main control device; the second end of the fourth resistor R4 is electrically connected to the second end of the capacitor C and the ground terminal.

[0078] In this embodiment, by setting the first resistor R1 and the third resistor R3, the photosensitive voltage changes linearly with the change of the photosensitive current, thereby improving the sensitivity of the photosensitive detection circuit. Capacitor C is used for signal filtering. The fourth resistor R4 is a current-limiting resistor.

[0079] In one embodiment of the present invention, the traffic light further includes a photovoltaic power source and a battery, and the output terminal of the photovoltaic power source is electrically connected to the input terminal of the battery and the prompting device 20, respectively.

[0080] In this embodiment, the traffic lights can also reduce their dependence on mains power by setting up corresponding photovoltaic power sources and batteries. When the mains power is interrupted, the mains power can serve as a backup power source to power the warning device 20 and other related devices, ensuring that the warning signal can be output stably.

[0081] refer to Figure 4 In one embodiment of the present invention, the traffic light further includes a button triggering device 60, the output terminal of which is electrically connected to the input terminal of the main control device 10; the button triggering device 60 is used to output a corresponding button triggering signal when triggered.

[0082] The main control device 10 is also used to receive the button trigger signal and output a corresponding prompt control signal to the prompt device 20.

[0083] In this embodiment, to avoid the traffic lights being unable to effectively change their warning signals due to a malfunction in the infrared array detection device 30, a corresponding button trigger device 60 is still required to improve the redundancy of the traffic lights.

[0084] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A traffic signal light, characterized in that, The traffic lights include: Main control device; A prompting device, wherein the controlled end of the prompting device is electrically connected to the output end of the main control device; the prompting device is used to receive the prompting control signal output by the main control device and output a corresponding prompting signal. An infrared array detection device, the output of which is electrically connected to the main control device; the infrared array detection device is used to detect the movement of people within a preset area and output corresponding infrared detection signals; The main control device is used to receive the infrared detection signal and output a corresponding prompt control signal to the prompt device. The infrared array detection device includes: A first infrared detection device is disposed at a first height on a first surface of a traffic signal light body. The detection angle of the first infrared detection device is a horizontal first detection angle. The output terminal of the first infrared detection device is electrically connected to the main control device. The first infrared detection device is used to output a first infrared detection signal to the main control device. The second infrared detection device is disposed at a second height on the first surface of the traffic signal light body. The detection angle of the second infrared detection device is a horizontal downward second detection angle. The output end of the second infrared detection device is electrically connected to the main control device. The second infrared detection device is used to output a second infrared detection signal to the main control device. The third infrared detection device is set at a third height on the first surface of the traffic signal light body. The detection angle of the third infrared detection device is a horizontal downward third detection angle. The output terminal of the third infrared detection device is electrically connected to the main control device. The third infrared detection device is used to output a third infrared detection signal to the main control device. The third detection angle is greater than the second detection angle.

2. The traffic signal light as described in claim 1, characterized in that, The infrared array detection device includes: The fourth infrared detection device is set at a first height on the first surface of the traffic signal light body. The detection distance of the fourth infrared detection device is a first horizontal detection distance. The output terminal of the fourth infrared detection device is electrically connected to the main control device. The fourth infrared detection device is used to output a fourth infrared detection signal to the main control device. A fifth infrared detection device is provided, which is installed at a second height on the first surface of the traffic signal light body. The detection distance of the fifth infrared detection device is a horizontal second detection distance. The output terminal of the fifth infrared detection device is electrically connected to the main control device. The fifth infrared detection device is used to output a fifth infrared detection signal to the main control device. The second detection distance is less than the first detection distance.

3. The traffic signal light as described in claim 1, characterized in that, The infrared array detection device further includes: A sixth infrared detection device is provided, which is installed at a first height on the second surface of the traffic signal light body. The detection angle of the sixth infrared detection device is a horizontal first detection angle. The output terminal of the sixth infrared detection device is electrically connected to the main control device. The sixth infrared detection device is used to output a sixth infrared detection signal to the main control device. The second surface and the first surface are opposite surfaces.

4. The traffic signal light as described in any one of claims 1 to 2, characterized in that, The traffic light also includes a temperature detection device, the output of which is electrically connected to the input of the main control device; the temperature detection device is used to detect the temperature within the preset area and output a temperature detection signal. The main control device is also used to receive the temperature detection signal and output a corresponding prompt control signal to the prompt device.

5. The traffic signal light as described in any one of claims 1 to 2, characterized in that, The traffic light also includes a photosensitive detection device, the output of which is electrically connected to the input of the main control device; the photosensitive detection device is used to detect the ambient light of the traffic light and output a photosensitive detection signal. The main control device is also used to receive the photosensitive detection signal and output the corresponding light intensity adjustment signal to the prompting device.

6. The traffic signal light as described in claim 5, characterized in that, The photosensitive detection device includes a photosensitive detection circuit, which includes a first resistor, a second resistor, a third resistor, a fourth resistor, a capacitor, and a photodiode. Wherein, the first end of the first resistor is electrically connected to the power supply terminal; the second end of the first resistor is electrically connected to the anode of the photodiode and the first end of the second resistor; the cathode of the photodiode is electrically connected to the ground terminal; the second end of the second resistor is electrically connected to the first end of the third resistor and the first end of the fourth resistor; the second end of the third resistor is electrically connected to the first end of the capacitor and the input terminal of the main control device; and the second end of the fourth resistor is electrically connected to the second end of the capacitor and the ground terminal.

7. The traffic signal light as described in any one of claims 1 to 2, characterized in that, The traffic light also includes a photovoltaic power source and a battery, with the output terminal of the photovoltaic power source electrically connected to the input terminal of the battery and the warning device, respectively.

8. The traffic signal light as described in any one of claims 1 to 2, characterized in that, The traffic light also includes a button triggering device, the output of which is electrically connected to the input of the main control device; the button triggering device is used to output a corresponding button triggering signal when triggered. The main control device is also used to receive the button trigger signal and output a corresponding prompt control signal to the prompt device.

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