CN220873133U - Test equipment and vehicle of road traffic signal lamp information service system - Google Patents

Abstract

The application provides test equipment of a road traffic signal lamp information service system arranged in a vehicle, wherein a central control screen for displaying a signal lamp simulation picture is arranged in the vehicle, the test equipment comprises a video acquisition assembly and a signal lamp identification assembly, the video acquisition assembly comprises a base, a first camera and a second camera, and the base comprises a first side face and a second side face which are opposite; the first side is used for fixing a first camera and a second camera, the first camera is used for shooting pictures of the central control screen, and the second camera is used for shooting pictures of actual signal lamps outside the vehicle; the signal lamp identification component is used for comparing the coincidence degree of the picture of the central control screen and the picture of the actual signal lamp. According to the application, the pictures of the central control screen and the actual signal lamp are respectively shot by the two cameras, and the consistency of the pictures is compared by the signal lamp identification component, so that the efficiency and the accuracy of the test are greatly improved, and the efficiency of optimizing the road traffic signal lamp information service system is improved.

Description

Test equipment and vehicle of road traffic signal lamp information service system

Technical Field

The application relates to the technical field of transportation, in particular to test equipment and a vehicle of a road traffic signal lamp information service system.

Background

At present, aiming at the application of the intelligent network-connected automobile and road cooperative application scene, which relates to the application of issuing the information of the road traffic signal lamp in real time, the accuracy and the real-time performance of the data of the road traffic signal lamp need to be ensured, therefore, the quality evaluation of the data of the road traffic signal lamp needs to be carried out, at present, the quality evaluation process is mainly carried out in a manual statistics mode, namely, a worker needs to check the actual traffic signal lamp of an intersection and the virtual signal lamp displayed by an automobile machine at the same time, and judge the consistency of the two signals, and under the condition that the two signals are different, the difference size, such as the inconsistent proportion of lamp colors, the delay size and the like, is roughly estimated.

But the consistency is judged by comparing the states of the actual traffic signal lamp and the virtual traffic signal lamp by naked eyes, the efficiency of the mode is lower, and the precision is difficult to ensure.

Disclosure of utility model

The embodiment of the application provides test equipment and a vehicle of a road traffic signal lamp information service system, which are used for solving or relieving one or more technical problems in the prior art.

As an aspect of an embodiment of the present application, an embodiment of the present application provides a test apparatus for a road traffic signal information service system for installation in a vehicle in which a center control screen for displaying a signal lamp simulation screen is installed, the test apparatus comprising:

The video acquisition assembly comprises a base, a first camera and a second camera, wherein the base comprises a first side face and a second side face which are opposite; the first side is used for fixing a first camera and a second camera, the first camera is used for shooting pictures of the central control screen, and the second camera is used for shooting pictures of actual signal lamps outside the vehicle;

The signal lamp identification component is arranged in the base and is used for comparing whether the picture of the central control screen is consistent with the picture of the actual signal lamp or not, and if the similarity of the picture of the central control screen and the picture of the actual signal lamp is lower than a preset threshold value, a prompt signal is sent.

Optionally, shooting a plurality of pictures obtained by the central control screen to form a first video;

Shooting a plurality of pictures obtained by the actual signal lamp to form a second video;

The test apparatus further includes a video processing component disposed within the base, the video processing component configured to compare a time stamp signal of the first video with a time stamp signal of the second video to synchronize pictures.

Optionally, the video processing component includes:

The video interface is electrically connected with the first camera and the second camera respectively and is used for receiving the first video and the second video;

the image processing chip is used for comparing the time stamp signal of the first video with the time stamp signal of the second video to synchronize pictures.

Optionally, the test device further includes a quality statistics component disposed within the base and coupled to the signal lamp identification component;

The quality statistics component is used for receiving the comparison result of the signal lamp identification component and generating a quality test report according to the comparison result.

Optionally, the test device further comprises a storage component disposed within the base and coupled to the quality statistics component;

The storage component is configured to receive and store the quality test report.

Optionally, the test device further comprises a USB interface;

The USB interface is arranged on the base and is used for being coupled with external equipment;

The storage component transmits the quality test report to external equipment through the USB interface.

Optionally, the test device further comprises a display component;

The display component is arranged on the second side face of the base, the display component is coupled with the video interface, and the display component is used for providing a man-machine interaction interface.

Optionally, the display assembly includes a touch screen;

the touch screen is used for receiving a user instruction and adjusting the focal lengths of the first camera and the second camera according to the user instruction.

Optionally, the test device further comprises a support bracket, one end of the support bracket is fixedly connected with the base, and the other end of the support bracket is fixedly connected with the vehicle.

As another aspect of the embodiment of the present application, the embodiment of the present application further provides a vehicle, where the vehicle includes the test apparatus of any one of the above-mentioned embodiments.

According to the application, the first camera shoots the picture of the central control screen, the second camera shoots the picture of the actual signal lamp outside the vehicle, and the signal lamp identification component compares the consistency of the picture of the central control screen and the picture of the actual signal lamp, so that the efficiency and the accuracy of the test are greatly improved, and the efficiency of optimizing the road traffic signal lamp information service system is improved.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will become apparent by reference to the drawings and the following detailed description.

Drawings

In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.

FIG. 1 is a front view of a test apparatus according to an embodiment of the present application;

FIG. 2 is a rear view of a test apparatus according to an embodiment of the present application;

FIG. 3 is a side view of a test apparatus according to an embodiment of the present application;

FIG. 4 is a schematic diagram showing the connection of components of a test apparatus according to an embodiment of the present application;

fig. 5 is a schematic view of a test apparatus according to an embodiment of the present application installed in a vehicle.

Reference numerals illustrate:

1. a video acquisition component;

2. A signal lamp identification component;

3. a video processing component;

4. a quality statistics component;

5. a storage component;

6. A USB interface;

7. a display assembly;

8. a support bracket;

10. a base;

11. A first side;

12. A second side;

31. A video interface;

32. An image processing chip;

111. A first camera;

112. A second camera;

71. a touch screen;

90. A vehicle.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

At present, aiming at the application of the intelligent network-connected automobile and road cooperative application scene, which relates to the application of issuing the information of the road traffic signal lamp in real time, the accuracy and the real-time performance of the data of the road traffic signal lamp need to be ensured, therefore, the quality evaluation of the data of the road traffic signal lamp needs to be carried out, at present, the quality evaluation process is mainly carried out in a manual statistics mode, namely, a worker needs to check the actual traffic signal lamp of an intersection and the virtual signal lamp displayed by an automobile machine at the same time, and judge the consistency of the two signals, and under the condition that the two signals are different, the difference size, such as the inconsistent proportion of lamp colors, the delay size and the like, is roughly estimated.

But the consistency is judged by comparing the states of the actual traffic signal lamp and the virtual traffic signal lamp by naked eyes, the efficiency of the mode is lower, and the precision is difficult to ensure.

In order to solve the above-mentioned problems, referring to fig. 1 to 5, an embodiment of the present application provides a testing device of a road traffic signal information service system for being installed in a vehicle 90.

It should be noted that, the present application only protects hardware of the test device, connection relation between the hardware, and positional relation of the hardware. The software or flow used in the hardware is easily implemented by those skilled in the art, and the present application does not involve the innovation of the software.

A center control screen (not shown) for displaying a signal lamp simulation screen is installed in the vehicle 90, and the test apparatus includes: video acquisition subassembly 1, signal lamp discernment subassembly 2. In some embodiments, the system further comprises a video processing component 3, a quality statistics component 4, a storage component 5 and a USB interface 6. The respective components will be specifically described below.

The video acquisition assembly 1 comprises a base 10, a first camera 111 and a second camera 112, the base 10 comprising a first side 11 and a second side 12 opposite to each other; the first side 11 is used for fixing a first camera 111 and a second camera 112, the first camera 111 is used for shooting pictures of the central control screen, and the second camera 112 is used for shooting pictures of actual signal lamps (i.e. pictures of traffic signal lamps of a traffic intersection) outside the vehicle 90.

The signal lamp recognition component 2 is arranged in the base 10, the signal lamp recognition component 2 is used for comparing whether the picture of the central control screen is consistent with the picture of the actual signal lamp, and if the similarity of the picture of the central control screen and the picture of the actual signal lamp is lower than a preset threshold value, a prompt signal is sent. In a specific application, the signal lamp recognition assembly 2 can be implemented using a programmable image processing chip. In another specific application, the programmable image processing chip can also load a machine vision algorithm, and the traffic signal lamp object in the video is identified and positioned through processing the video stream, so as to acquire the signal lamp state parameter.

According to the embodiment of the application, the first camera 111 shoots the picture of the central control screen, the second camera 112 shoots the picture of the actual signal lamp outside the vehicle 90, and the signal lamp identification component 2 compares the consistency of the picture of the central control screen and the picture of the actual signal lamp, so that the efficiency and the accuracy of the test are greatly improved, and the efficiency of optimizing the road traffic signal lamp information service system is improved.

When the consistency of the picture of the central control screen and the picture of the actual signal lamp is lower than a preset threshold value, the signal lamp identification component 2 sends out a prompt signal. Specifically, the prompting signal may include a warning light flashing, a warning sound broadcasting, a text prompting, and the like. After receiving the prompt signal, the tester can check the consistency of the pictures again.

In an alternative embodiment, a plurality of pictures obtained by shooting a central control screen form a first video;

Shooting a plurality of pictures obtained by the actual signal lamp to form a second video;

The test apparatus may further comprise a video processing component 3, the video processing component 3 being disposed within the base 10, the video processing component 3 being configured to compare the time stamp signal of the first video with the time stamp signal of the second video to synchronize the pictures.

Specifically, the first video of the first camera 111 in the shooting vehicle, which is aligned with the countdown information (i.e. the central control screen) of the traffic signal displayed on the screen of the vehicle-mounted terminal, carries a corresponding time stamp signal, and the second video of the real-time state of the actual traffic signal shot by the second camera 112 also carries a corresponding time stamp signal.

In the above-mentioned alternative embodiment, by synchronizing the time stamp signals of the first video and the second video, the time axes of the first video and the second video are aligned, so as to ensure that the picture of the first video shot by the first camera 111 and the picture of the second video shot by the second camera 112 are accurately aligned, thereby improving the accuracy of the picture comparison result.

Further, the video processing component 3 may include hardware circuits such as a video interface 31, an image processing chip 32, and a memory.

A video interface 31 electrically connected to the first camera 111, the second camera 112, and the image processing chip 32, respectively, the video interface 31 being configured to receive the first video and the second video;

An image processing chip 32, the image processing chip 32 receives the first video and the second video through the video interface 31, and the image processing chip 32 is used for comparing a time stamp signal of the first video and a time stamp signal of the second video to synchronize pictures.

The first camera 111 transmits a first video to the image processing chip 32 through the video interface 31, and the second camera 112 transmits a second video to the image processing chip 32 through the video interface 31. The image processing chip 32 automatically establishes the time corresponding relation of the two paths of videos by using the time stamp signals of the videos, so that the accurate alignment of video time axes is realized. That is, each frame of images of the two videos are synchronized through the time stamp signals, so that whether traffic signal data of the road traffic signal lamp information service system are accurate or not can be effectively detected, and a more accurate test result can be obtained.

In an alternative embodiment, the test apparatus may further include a quality statistics component 4, the quality statistics component 4 being disposed within the base 10 and coupled to the signal identification component 2; the quality statistics component 4 is configured to receive the comparison result of the signal lamp identification component 2, and generate a quality test report according to the comparison result.

In a specific application, the quality statistics component 4 can also provide an interactive human-machine interface, which allows a user to check and confirm the color, countdown and other states of the signal lamps in the two paths of videos, and judge whether the two pictures are consistent. The quality statistics component 4 can also be configured to automatically count the accuracy of signal lamp state consistency, and generate detailed quality test reports, including quality metrics, statistical graphs, trend analysis, and the like, to provide basis for optimizing decisions.

The quality statistics component 4 automatically generates test reports, systematically reflects test results, and facilitates continuous improvement.

Further, the test device may further comprise a storage component 5. The storage component 5 is disposed within the base 10 and coupled to the quality statistics component 4.

The storage component 5 is configured to receive and store the quality test report.

The storage component 5 may store a historical version of the comparison results of the signal identification component 2 to facilitate a user's review of the historical comparison results.

Further, the test device may also comprise a USB interface 6.

The USB interface 6 is disposed on the base 10, and the USB interface 6 is configured to couple with an external device.

Wherein the storage component 5 transmits the quality test report to an external device via the USB interface 6.

After the quality statistics component 4 generates a quality test report, the quality test report is transmitted to an external device through the USB interface 6, so that the detected consistency result of the signal lamp and the service system is output. The external device can be a computer, a mobile phone and other devices.

In an alternative embodiment, the test device may further comprise a display assembly 7.

The display assembly 7 is disposed on the second side 12 of the base 10, the display assembly 7 is coupled to the video interface 31, and the display assembly 7 is configured to provide a man-machine interaction interface.

The user can adjust various settings of the test equipment through the man-machine interaction interface, such as shooting duration, attribute content included in the consistency report and the like.

Further, the display assembly 7 may include a touch screen 71;

The touch screen 71 is configured to receive a user instruction, and adjust focal lengths of the first camera 111 and the second camera 112 according to the user instruction.

The user can adjust the focal lengths of the first camera 111 and the second camera 112 by operating the related virtual buttons on the touch screen 71, so that the first video and the second video shot by the user are clearer, the picture precision is improved, and the accuracy of the comparison result is improved.

In an alternative embodiment, the test apparatus may further comprise a support bracket 8, wherein one end of the support bracket 8 is fixedly connected to the base 10, and the other end is fixedly connected to the vehicle 90.

The test equipment is fixed in the vehicle 90 by the support bracket 8 to stabilize the contents of the pictures photographed by the first camera 111 and the second camera 112.

In order that the application may be more readily understood, one exemplary application is provided below.

The test device is firmly fixed in a central position in the vehicle by the support bracket. The test device is equipped with a touch screen 71 located behind it for adjusting the focal length of the two cameras, respectively. The two cameras are a first camera 111 for taking an in-vehicle situation and a second camera 112 for taking an out-of-vehicle scene, respectively. By operating the touch screen 71, the two cameras can be precisely aligned to be aligned to the center screen and the targets (traffic lights) outside the vehicle, respectively. When a vehicle passes through an intersection, the two cameras respectively capture video pictures of the traffic signal lamp. The two video sources enter the testing equipment for processing. The video processing component receives two paths of video streams of the two video sources, automatically identifies signal lamp time periods in the two paths of video, and performs time axis alignment on the basis. The signal recognition component 2 then recognizes signal state changes in the video and performs quality statistics via the quality statistics component 4. A traffic light status test quality report is ultimately generated and stored in a storage component 5 (which may be a disk, SSD, etc.). According to the requirements of testers, the test information can be output to a computer through the USB interface 5.

The technical scheme has the following technical advantages:

The traffic signal lamp is intelligently identified by using machine vision, so that manual statistics errors are avoided, and the efficiency is improved.

The signal lamp state is displayed in all directions by collecting double visual angles in the intersection and the vehicle, and the result is more accurate and reliable.

The video time axis is automatically aligned accurately, so that the reasons for inconsistent states can be conveniently compared and analyzed and found.

The quality statistics module automatically generates a test report, systematically reflects test results and is convenient for continuous improvement.

The system supports large-scale deployment, can continuously monitor the state of traffic signal lamps, and is beneficial to finding out faults of various signal lamps.

By applying technical means such as video image processing and metering statistics, the intelligent and automatic traffic signal lamp quality test is realized. Compared with manual testing, the testing efficiency is greatly improved, and the testing result is more accurate and reliable. The system can be widely applied to the construction of intelligent traffic systems, and has important social benefits and economic values.

Further refinement is that:

1. The video processing component and the quality statistics component are adopted to replace manual testing, so that the automation of the traffic signal lamp quality testing is realized, and the testing efficiency is improved.

2. The first video and the second video are shot through the two cameras respectively, the similarity of the pictures is identified through the signal lamp identification component, and the accuracy and the reliability of the test result are improved. The video double-source acquisition covers all-round state information, and the algorithm identification avoids human error.

3. Support large-scale, continuous quality monitoring. The test equipment of the road traffic signal lamp information service system can be deployed in a large range, the condition of the road traffic signal lamp information service system can be continuously monitored, manual continuous monitoring is not needed, and the cost is low.

4. The test quality report is automatically generated, which can provide basis for optimizing decision making and is beneficial to analysis improvement.

5. The multi-source video is aligned, which is beneficial to the analysis of the cause of the problem. Accurate time axis alignment can help analyze the cause of the state inconsistency.

6. The dynamic state of the traffic signal lamp in a complex environment can be tested, and the result is more accurate.

7. A unified and standardized quality evaluation system is provided through a quality statistics component, so that the fairness and comparability of the results are ensured.

8. The test equipment is convenient to update and maintain, and can adapt to different requirements. By arranging components such as a video acquisition component and a signal lamp identification component, the system is modularized, the assembly installation and iteration are convenient, and the software algorithm part is easy to update and iterate.

The embodiment of the application also provides a vehicle 90, which comprises the test equipment of the road traffic signal lamp information service system in any embodiment.

The test apparatus of the road traffic signal information service system of the above-described embodiment and other configurations of the vehicle 90 may be applied to various technical solutions now and in the future known to those skilled in the art, and will not be described in detail herein.

In the description of the present specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different structures of the application. The foregoing description of specific example components and arrangements has been presented to simplify the present disclosure. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A test device for a road traffic signal lamp information service system for installation in a vehicle having installed therein a central control screen for displaying a signal lamp simulation picture, the test device comprising:

The video acquisition assembly comprises a base, a first camera and a second camera, wherein the base comprises a first side face and a second side face which are opposite; the first side is used for fixing a first camera and a second camera, the first camera is used for shooting pictures of the central control screen, and the second camera is used for shooting pictures of actual signal lamps outside the vehicle;

The signal lamp identification component is arranged in the base and is used for comparing whether the picture of the central control screen is consistent with the picture of the actual signal lamp or not, and if the similarity of the picture of the central control screen and the picture of the actual signal lamp is lower than a preset threshold value, a prompt signal is sent.

2. The test apparatus of claim 1, wherein the test apparatus comprises a plurality of test cells,

Shooting a plurality of pictures obtained by a central control screen to form a first video;

Shooting a plurality of pictures obtained by the actual signal lamp to form a second video;

The test apparatus further includes a video processing component disposed within the base, the video processing component configured to compare a time stamp signal of the first video with a time stamp signal of the second video to synchronize pictures.

3. The test apparatus of claim 2, wherein the video processing component comprises:

The video interface is electrically connected with the first camera and the second camera respectively and is used for receiving the first video and the second video;

the image processing chip is used for comparing the time stamp signal of the first video with the time stamp signal of the second video to synchronize pictures.

4. The test apparatus of claim 1, further comprising a quality statistics component disposed within the base and coupled to the signal identification component;

The quality statistics component is used for receiving the comparison result of the signal lamp identification component and generating a quality test report according to the comparison result.

5. The test apparatus of claim 4, further comprising a storage component disposed within the base and coupled to the quality statistics component;

The storage component is configured to receive and store the quality test report.

6. The test device of claim 5, wherein the test device further comprises a USB interface;

The USB interface is arranged on the base and is used for being coupled with external equipment;

The storage component transmits the quality test report to external equipment through the USB interface.

7. The test apparatus of claim 2, wherein the test apparatus further comprises a display component;

The display component is arranged on the second side surface of the base, is coupled with the video interface and is used for providing a man-machine interaction interface.

8. The test apparatus of claim 7, wherein the display assembly comprises a touch screen;

the touch screen is used for receiving a user instruction and adjusting the focal lengths of the first camera and the second camera according to the user instruction.

9. The test apparatus of any one of claims 1 to 8, further comprising a support bracket fixedly connected at one end to the base and at the other end to the vehicle.

10. A vehicle comprising a testing apparatus according to any one of claims 1 to 9.