Testing device of traffic light detection system

By designing a traffic light detection system testing device containing multiple light sources, and using the control module to adjust the brightness and color temperature of the light source, the existing devices cannot meet the detection performance testing problem in complex environments, and achieve a more accurate traffic light detection performance evaluation.

CN223272952UActive Publication Date: 2025-08-26SHANGHAI YANRUI INFORMATION TECH
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Patent Information

Application Number
CN202422482879.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2025-08-26
Estimated Expiration
2034-10-14

AI Technical Summary

Technical Problem

The testing devices of existing traffic light detection systems cannot meet the testing requirements for different complex environments, especially in urban road environments, where misidentification is prone to occur when the background environment is complex.

Method used

A test device for a traffic light detection system is designed, including a housing, a touch screen, a control module and a variety of light sources. The brightness of red, green, yellow and white light sources is adjusted through the control module, simulate various traffic light recognition scenes, including changes in brightness and color temperature, and combined with a temperature sensor and a cooling fan to ensure the test effect.

Benefits of technology

It can effectively simulate traffic light recognition scenarios in different complex environments, improve the detection performance testing capabilities of traffic light detection systems in different situations, and ensure the accuracy and comprehensiveness of the test.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a testing device of a traffic light detection system. The testing device comprises a housing, a touch screen, a control module and a plurality of light sources. The touch screen is arranged at the top of the shell, the control module is arranged in the shell, and the touch screen is in communication connection with the control module; the plurality of light sources are arranged on the surface of one side of the shell, and the controlled end of each light source is connected with the control end of the control module, so that the light sources are controlled by the control module to carry out brightness adjustment; the light sources comprise a red light source, a green light source, a yellow light source and a white light source. According to the utility model, the brightness of the red light source, the green light source, the yellow light source and the white light source is adjusted by using the control module, and various different traffic light identification scenes can be simulated, so that the detection performance test requirements of the traffic light detection system under different conditions can be met.
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Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a testing device for a traffic light detection system. Background Art

[0002] With the increasing demand for automotive cameras in driver-assisted and autonomous driving systems, various image-based object detection systems have been proposed, such as building detection, tree detection, and traffic light detection. Traffic light recognition is a crucial component of intelligent traffic machine vision. It provides drivers with real-time intersection status, road feasibility information, and accident prevention. For autonomous driving systems, traffic light detection is a key technology for ensuring their safety.

[0003] Current traffic light detection systems typically use a color-based recognition method. However, this method is prone to misidentification in complex background environments, such as urban roads where there are vehicles, pedestrians, billboards, and stormy weather. Therefore, it is necessary to test the detection performance of traffic light detection systems. Existing test devices for traffic light detection systems typically only simulate the structure of traffic lights, with a single test scenario, and are unable to meet the requirements for testing the detection performance of traffic light detection systems in different situations. Utility Model Content

[0004] The utility model provides a test device for a traffic light detection system, so as to solve the technical problem that the test device for a traffic light detection system in the prior art cannot meet the detection performance test requirements of the traffic light detection system under different situations.

[0005] In order to solve the above technical problems, a first aspect of an embodiment of the present utility model provides a test device for a traffic light detection system, comprising a housing, a touch screen, a control module and a plurality of light sources;

[0006] The touch screen is arranged on the top of the shell, the control module is arranged inside the shell, and the touch screen and the control module are communicated with each other; a plurality of light sources are arranged on a side surface of the shell, and the controlled end of each light source is connected to the control end of the control module so that the light source is controlled by the control module to adjust the brightness; the light sources include a red light source, a green light source, a yellow light source and a white light source.

[0007] As a preferred solution, a plurality of the light sources are arranged in rows and columns; the light colors emitted by the light sources in each row are the same, but the brightness of the light sources in each row is different.

[0008] As a preferred solution, the wavelength of the light emitted by the red light source is 625nm-633nm; the wavelength of the light emitted by the green light source is 503nm-506nm; and the wavelength of the light emitted by the yellow light source is 590nm-595nm.

[0009] As a preferred solution, the color temperature of the light emitted by the white light source is 6500±100K.

[0010] As a preferred solution, the device further comprises at least one temperature sensor, which is disposed in the housing, and a signal output end of the temperature sensor is connected to a signal input end of the control module.

[0011] As a preferred solution, the device further comprises a handle, which is arranged on the top of the shell.

[0012] As a preferred solution, the device also includes a cooling fan; fan mounting ports are provided on the opposite side surfaces of the housing, the cooling fan is installed at the fan mounting ports, and the controlled end of the cooling fan is connected to the control end of the control module.

[0013] As a preferred solution, a plurality of heat dissipation holes are further provided on two opposite side surfaces of the shell.

[0014] As a preferred solution, the device further includes a power access module and a power switch module;

[0015] A power assembly port is provided on one side of the housing near the bottom, the power access module and the power switch module are installed in the power assembly port, and the output end of the power access module is connected to the power receiving end of the control module.

[0016] As a preferred solution, a communication interface is further provided on one side surface of the housing, and a signal output end of the communication interface is connected to a signal input end of the control module.

[0017] Compared with the prior art, the beneficial effect of the embodiments of the present invention is that by utilizing the control module to adjust the brightness of each red light source, green light source, yellow light source and white light source, various traffic light recognition scenarios can be simulated, thereby meeting the detection performance test requirements of the traffic light detection system under different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 2 is a front view of a test device for a traffic light detection system according to an embodiment of the present invention;

[0019] Figure 2 2 is a top view of a test device for a traffic light detection system according to an embodiment of the present invention;

[0020] Figure 3 This is a left side view of a test device for a traffic light detection system according to an embodiment of the present utility model;

[0021] Figure 4 This is a right side view of the test device of the traffic light detection system in the embodiment of the present utility model;

[0022] Among them, 1. Shell; 2. Light source; 3. Touch screen; 4. Handle; 5. Cooling fan; 6. Cooling hole; 7. Communication interface; 8. Power access module; 9. Power switch module. DETAILED DESCRIPTION

[0023] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4 , a first aspect of an embodiment of the present utility model provides a test device for a traffic light detection system, comprising a housing 1, a touch screen 3, a control module and a plurality of light sources 2;

[0025] The touch screen 3 is arranged on the top of the shell 1, the control module is arranged inside the shell 1, and the touch screen 3 is communicated with the control module; a plurality of light sources 2 are arranged on a side surface of the shell 1, and the controlled end of each light source 2 is connected to the control end of the control module so that the light source 2 is controlled by the control module to adjust the brightness; the light source 2 includes a red light source, a green light source, a yellow light source and a white light source.

[0026] Specifically, the touch screen 3 is used to display the brightness adjustment interface of the light source 2 to the user, receive the user's touch signal, and then send the touch signal to the control module. The control module is used to individually adjust the brightness of the corresponding light source 2 in response to the received touch signal. It is understandable that based on actual testing needs, the user can enter the required specific brightness value in the brightness adjustment interface through the touch screen 3, or select various preset brightness levels, where each brightness level is pre-configured with a corresponding brightness value. This ensures the flexibility of light source brightness adjustment while being able to simulate various different traffic light recognition scenarios. It is worth noting that in different scenarios, the brightness of traffic lights may be affected by weather or obstructions such as buildings, trees, billboards, etc. Therefore, by adjusting the brightness of the light source 2, various complex and harsh environments can be simulated to test the detection performance of the traffic light detection system when dealing with traffic lights of different brightness levels. In addition, the white light source in this embodiment can also be used for glare testing of traffic light detection systems.

[0027] It is worth noting that the method of using the test device of the traffic light detection system provided in this embodiment is: when it is necessary to conduct a traffic light detection performance test, the tester needs to place the test device in a dark room, and then adjust the brightness of each light source 2 through the touch screen 3 to simulate the effect of traffic lights in different environments, and place the traffic light detection system to be tested at a certain distance in front of the light source 2 and take a picture, and then evaluate the detection performance of the traffic light detection system to be tested when processing traffic lights with different brightness levels based on the shooting results.

[0028] As a preferred solution, the plurality of light sources 2 are arranged in rows and columns; the light colors emitted by the light sources 2 in each row of light sources 2 are the same, while the brightness of the light sources 2 in each row of light sources 2 is different.

[0029] Specifically, in order to ensure the test effect, this embodiment sets up several light sources 2 arranged in rows and columns, and the light colors emitted by each light source 2 in each row of light sources 2 are the same, that is, all red light sources are in the same row, all green light sources are in the same row, all yellow light sources are in the same row, and all white light sources are in the same row. However, in order to test the detection performance of the traffic light detection system when processing traffic lights with different brightness levels, the brightness of each light source 2 in the same row of light sources 2 is different.

[0030] As one optional embodiment, the number of light sources 2 is 40, including 10 red light sources, 10 green light sources, 10 yellow light sources and 10 white light sources, forming a light source 2 arrangement structure of 4 rows and 10 columns. By default, the brightness of each light source 2 is different, thereby forming 40 levels of light source brightness.

[0031] As a preferred solution, the wavelength of the light emitted by the red light source is 625nm-633nm; the wavelength of the light emitted by the green light source is 503nm-506nm; and the wavelength of the light emitted by the yellow light source is 590nm-595nm.

[0032] Specifically, to ensure the effectiveness of the test, each light source 2 in this embodiment uses a wavelength consistent with road traffic lights. For red light sources, the wavelength of highway round lights is generally 631nm, and the wavelength of highway pedestrian lights is generally 633nm. Therefore, the wavelength of the light emitted by the red light source in this embodiment is 625nm-633nm. For green light sources, the wavelength of highway round lights is generally 506nm, and the wavelength of highway pedestrian lights is generally 503nm. Therefore, the wavelength of the light emitted by the green light source in this embodiment is 503nm-506nm. For yellow light sources, the wavelength of highway round lights is generally 591nm, and the wavelength of highway pedestrian lights is generally 595nm. Therefore, the wavelength of the light emitted by the yellow light source in this embodiment is 590nm-595nm.

[0033] As a preferred solution, the color temperature of the light emitted by the white light source is 6500±100K.

[0034] As a preferred solution, the device further comprises at least one temperature sensor, which is disposed in the housing 1 , and a signal output end of the temperature sensor is connected to a signal input end of the control module.

[0035] Specifically, in order to ensure that the brightness of each light source 2 can be maintained at the set target brightness value, this embodiment installs at least one temperature sensor in the outer shell 1, so that the temperature sensor can be used to measure the current operating temperature of each light source 2 and transmit it to the control module to prevent the light intensity from being weakened due to excessive temperature.

[0036] As an optional embodiment, when a plurality of temperature sensors are provided in the housing 1 , the control module uses the average value of the temperature detection values ​​received from the temperature sensors as the current operating temperature of each light source 2 .

[0037] As a preferred solution, the device further includes a handle portion 4 , which is provided on the top of the housing 1 .

[0038] Specifically, this embodiment provides a handle 4 on the top of the housing 1 to facilitate carrying. As an optional embodiment, a handle 4 is provided on either side of the top of the housing 1, and the distance between the two handles 4 conforms to the width of the human shoulder, thereby improving the convenience of carrying.

[0039] As a preferred embodiment, the device also includes a cooling fan 5; fan mounting ports are provided on the opposite side surfaces of the housing 1, the cooling fan 5 is installed at the fan mounting ports, and the controlled end of the cooling fan 5 is connected to the control end of the control module.

[0040] Specifically, considering that the light source 2 may gradually reduce the brightness value emitted due to excessive temperature during operation, thereby affecting the detection performance test results of the traffic light detection system, this embodiment is equipped with cooling fans 5 on the opposite side surfaces of the shell 1, which can improve the heat dissipation performance of the test device and effectively avoid the situation where the light source 2 gradually reduces the brightness value emitted due to excessive temperature during operation.

[0041] As a preferred solution, a plurality of heat dissipation holes 6 are further provided on two opposite side surfaces of the housing 1 .

[0042] Specifically, in order to further improve the heat dissipation performance of the test device, this embodiment also provides a plurality of heat dissipation holes 6 on the opposite side surfaces of the shell 1. It can be understood that the shape of the heat dissipation hole 6 can be a regular shape such as a circle, a triangle, an ellipse, a regular polygon, or other irregular shapes, which are not specifically limited in this embodiment.

[0043] As a preferred solution, the device further includes a power access module 8 and a power switch module 9;

[0044] A power supply assembly port is provided on one side of the housing 1 near the bottom, the power access module 8 and the power switch module 9 are installed in the power supply assembly port, and the output end of the power access module 8 is connected to the power receiving end of the control module.

[0045] Specifically, this embodiment provides a power assembly port on one side surface of the shell 1 near the bottom, which can ensure safety while facilitating the routing of the power cord. When the test device of this embodiment needs to be used, the external power supply is inserted into the power access module 8 through the power cord, and the power switch module 9 is controlled to turn on, thereby enabling power supply to the test device.

[0046] As a preferred solution, a communication interface 7 is further provided on one side surface of the housing 1 , and a signal output end of the communication interface 7 is connected to a signal input end of the control module.

[0047] Specifically, this embodiment provides users with access functions for external devices such as computers and mobile phones by setting a communication interface 7 on one side surface of the shell 1, so that users can use external devices such as computers and mobile phones to send brightness adjustment instructions of each light source 2 to the control module to achieve brightness adjustment of the light source 2.

[0048] The test device for the traffic light detection system provided by the embodiment of the present utility model can simulate various traffic light recognition scenarios by adjusting the brightness of each red light source, green light source, yellow light source and white light source through the control module, thereby meeting the detection performance test requirements of the traffic light detection system in different situations.

[0049] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A test device for a traffic light detection system, characterized in that: It includes a housing, a touch screen, a control module and several light sources; The touch screen is arranged on the top of the shell, the control module is arranged inside the shell, and the touch screen and the control module are communicated with each other; a plurality of light sources are arranged on a side surface of the shell, and the controlled end of each light source is connected to the control end of the control module so that the light source is controlled by the control module to adjust the brightness; the light sources include a red light source, a green light source, a yellow light source and a white light source.

2. The test device for the traffic light detection system according to claim 1, characterized in that: The plurality of light sources are arranged in rows and columns; the light colors emitted by the light sources in each row are the same, but the brightness of the light sources in each row is different.

3. The test device for the traffic light detection system according to claim 1, wherein: The wavelength of the light emitted by the red light source is 625nm-633nm; the wavelength of the light emitted by the green light source is 503nm-506nm; and the wavelength of the light emitted by the yellow light source is 590nm-595nm.

4. The test device for the traffic light detection system according to claim 1, wherein: The color temperature of the light emitted by the white light source is 6500±100K.

5. The test device for the traffic light detection system according to claim 1, wherein: The device further comprises at least one temperature sensor, which is disposed in the housing, and a signal output end of the temperature sensor is connected to a signal input end of the control module.

6. The test device for the traffic light detection system according to claim 1, wherein: The device further comprises a handle portion, which is arranged on the top of the shell.

7. The test device for a traffic light detection system according to claim 1, wherein: The device also includes a heat dissipation fan; fan mounting openings are provided on opposite side surfaces of the housing, the heat dissipation fan is mounted on the fan mounting openings, and a controlled end of the heat dissipation fan is connected to a control end of the control module.

8. The test device for a traffic light detection system according to claim 1, wherein: A plurality of heat dissipation holes are also provided on two opposite side surfaces of the shell.

9. The test device for a traffic light detection system according to claim 1, wherein: The device also includes a power access module and a power switch module; A power assembly port is provided on one side of the housing near the bottom, the power access module and the power switch module are installed in the power assembly port, and the output end of the power access module is connected to the power receiving end of the control module.

10. The testing device for the traffic light detection system according to claim 1, wherein: A communication interface is further provided on one side surface of the housing, and a signal output end of the communication interface is connected to a signal input end of the control module.