Commercial vehicle tail traffic light synchronous display system and method

Abstract

The invention provides a system and a method for synchronously displaying traffic lights at the tail of a commercial vehicle. The system comprises a camera, a navigation module, an image processing module and a data processing module, wherein the camera is used for acquiring a real-time image and a timestamp of a traffic light to be identified at a current driving intersection of the vehicle; the image processing module is used for identifying the real-time image to obtain first color information and first countdown information of the traffic light to be identified; the navigation module is used for acquiring real-time navigation information of the vehicle, and the real-time navigation information comprises second color information and second countdown information of the traffic light to be identified at the current driving intersection; and the data processing module is used for comparing the first color information and the first countdown information with the second color information and the second countdown information, and outputting calibrated traffic light information according to a comparison result. Accurate traffic light information can be provided for rear vehicles without depending on a network, the intersection passing efficiency is improved, and the traffic accident occurrence risk is reduced.

Description

Technical Field

[0001] The present invention relates to the field of automobile safety technology, and in particular to a system and method for synchronously displaying rear traffic lights of a commercial vehicle. Background Art

[0002] Due to their high body and large size, commercial vehicles will block the field of view of small vehicles following closely behind, especially at intersections with traffic lights. The cars following closely behind cannot obtain the traffic light information at the current intersection, and it is easy to mistakenly run red lights or cause other unnecessary traffic accidents, posing hidden dangers to the personal and property safety of the car driver and others, and affecting the efficiency and safety of urban traffic.

[0003] At present, on-board devices that can display the current traffic light information at intersections have gradually appeared at home and abroad. However, since the traffic light information displayed needs to be received, processed and verified by the server before being forwarded to the on-board device, there will be a large delay in the middle, and it is impossible to provide accurate traffic light information. At the same time, the vehicle needs to turn on the navigation to receive the traffic light information, which poses a traffic safety hazard when the navigation is unstable. Summary of the invention

[0004] The present invention provides a system and method for synchronously displaying traffic lights at the rear of a commercial vehicle, which are used to solve the problem in the prior art that accurate traffic light information cannot be synchronously displayed, resulting in the inability of following vehicles to obtain traffic light information at intersections in a timely manner, posing a potential traffic safety hazard, and realize accurate recognition and synchronous display of traffic light information.

[0005] The present invention provides a commercial vehicle rear traffic light synchronization display system, including a camera, a navigation module, an image processing module, and a data processing module: The camera is arranged at the front of the vehicle and is used to obtain a real-time image of the traffic light to be identified at the intersection where the vehicle is currently traveling and a timestamp corresponding to the real-time image; The image processing module is connected to the camera and is used to identify the real-time image and obtain the first color information and the first countdown information of the traffic light to be identified; The navigation module is used to obtain real-time navigation information of the vehicle, wherein the real-time navigation information includes the second color information of the traffic light to be identified at the current driving intersection and the second countdown information; The data processing module is connected to the image processing module and the navigation module respectively, and is used to compare the first color information and the first countdown information of the traffic light to be identified with the second color information and the second countdown information, and output the calibrated color information and countdown information of the traffic light to be identified according to the comparison result.

[0006] The commercial vehicle rear traffic light synchronization display system provided by the present invention also includes an LED display screen: The LED display screen is arranged at the rear of the vehicle and is used for synchronously displaying the calibrated color information and countdown information of the traffic light to be identified.

[0007] The commercial vehicle rear traffic light synchronous display system provided by the present invention also includes a buzzer; The buzzer is used to give voice prompts to the rear vehicles based on the calibrated color information and countdown information of the traffic light to be identified.

[0008] According to the commercial vehicle rear traffic light synchronization display system provided by the present invention, the data processing module is specifically used for: Compare the first color information with the second color information to obtain a first comparison result; compare the first countdown information with the second countdown information to obtain a second comparison result; If the first comparison result and the second comparison result are consistent, outputting the second color information and the second countdown information; If the first comparison result is consistent and the second comparison result is inconsistent, determining whether the countdown time difference between the first countdown information and the second countdown information is within a preset range; When the countdown time difference between the first countdown information and the second countdown information is within a preset range, the second color information and the second countdown information are output; When the countdown time difference between the first countdown information and the second countdown information is not within a preset range, the first color information and the first countdown information are used for output; If the first comparison result is inconsistent, the first color information and the first countdown information are used for output.

[0009] The present invention also provides a method for synchronously displaying rear traffic lights of a commercial vehicle, which is implemented by a processor of a synchronously displaying rear traffic lights of a commercial vehicle; The method comprises: Acquire a real-time image of the traffic light to be identified at the intersection where the vehicle is currently traveling and a timestamp corresponding to the real-time image through a camera; Recognize the real-time image through an image processing unit to obtain first color information and first countdown information of the traffic light to be recognized; Acquiring real-time navigation information of the vehicle through a navigation module, wherein the real-time navigation information includes second color information of a traffic light to be identified at a current driving intersection and second countdown information; The first color information and the first countdown information of the traffic light to be identified are compared with the second color information and the second countdown information through a data processing unit, and the calibrated color information and countdown information of the traffic light to be identified are output according to the comparison result.

[0010] According to the method for synchronously displaying rear traffic lights of commercial vehicles provided by the present invention, after obtaining the color information and countdown information of the traffic lights to be identified, the method further includes: The calibrated color information and countdown information of the traffic light to be identified are synchronously displayed at the rear of the vehicle.

[0011] According to the method for synchronously displaying rear traffic lights of commercial vehicles provided by the present invention, after obtaining the color information and countdown information of the traffic lights to be identified, the method further includes: Based on the calibrated color information and countdown information of the traffic light to be identified, a voice prompt is given to the vehicle behind.

[0012] According to the method for synchronously displaying traffic lights at the rear of a commercial vehicle provided by the present invention, the steps of comparing the first color information and the first countdown information of the traffic light to be identified with the second color information and the second countdown information, and outputting the calibrated color information and countdown information of the traffic light to be identified according to the comparison result specifically include: Compare the first color information with the second color information to obtain a first comparison result; compare the first countdown information with the second countdown information to obtain a second comparison result; If the first comparison result and the second comparison result are consistent, outputting the second color information and the second countdown information; If the first comparison result is consistent and the second comparison result is inconsistent, determining whether the countdown time difference between the first countdown information and the second countdown information is within a preset range; When the countdown time difference between the first countdown information and the second countdown information is within a preset range, the second color information and the second countdown information are output; When the countdown time difference between the first countdown information and the second countdown information is not within a preset range, the first color information and the first countdown information are used for output; If the first comparison result is inconsistent, the first color information and the first countdown information are used for output. The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any of the above-mentioned methods for synchronously displaying traffic lights at the rear of a commercial vehicle when executing the computer program.

[0013] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for synchronously displaying rear traffic lights of a commercial vehicle as described in any one of the above is implemented.

[0014] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the method for synchronously displaying rear traffic lights of a commercial vehicle as described in any one of the above is implemented.

[0015] The system and method for synchronously displaying traffic lights at the rear of a commercial vehicle provided by the present invention obtain a real-time image of a traffic light to be identified at a current intersection where the vehicle is traveling and a timestamp corresponding to the real-time image through a camera; identify the real-time image through an image processing module to obtain first color information and first countdown information of the traffic light to be identified; obtain real-time navigation information of the vehicle through a navigation module, wherein the real-time navigation information includes second color information and second countdown information of the traffic light to be identified at the current intersection where the vehicle is traveling; compare the first color information and first countdown information of the traffic light to be identified with the second color information and second countdown information of the traffic light to be identified through a data processing module, and output the calibrated color information and countdown information of the traffic light to be identified according to the comparison result, so as to provide accurate traffic light information for the following vehicle without relying on the network, improve the traffic efficiency at the intersection, and reduce the risk of traffic accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The present invention is a schematic diagram of the structure of a commercial vehicle rear traffic light synchronization display system.

[0018] Figure 2 It is a structural schematic diagram of the rear LED display screen provided by the present invention.

[0019] Figure 3 The present invention is a flowchart of a method for synchronously displaying traffic lights at the rear of a commercial vehicle.

[0020] Figure 4 The present invention provides a flow chart of a method for realizing synchronous display of traffic lights by using a vehicle-mounted navigation unit.

[0021] Figure 5 The present invention provides a flow chart of a method for realizing synchronous display of traffic lights through a mobile phone navigation module.

[0022] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Due to their high body and large size, commercial vehicles will block the following vehicles during normal operation, especially at intersections with traffic lights, which can easily cause traffic accidents. To address this problem, there are currently on-board devices that can display the current traffic light information at the intersection. However, since the traffic light information displayed needs to be received, processed and verified by the server and then forwarded to the on-board device, a large delay will occur in the middle, and the traffic light information cannot be accurately provided. At the same time, the vehicle must turn on the navigation to receive the traffic light information. If the navigation is not turned on, it will not be provided, which poses a traffic safety hazard. The prior art provides a vehicle-mounted device for real-time display of the traffic light at the front intersection on the rear screen of a bus. It applies C-V2X communication technology to the bus-mounted unit, and displays the traffic light information at the front intersection to the following vehicle through the built-in front intersection discrimination algorithm and traffic light message processing method, and connects the rear LED display screen through the intelligent on-board terminal. However, the bus route is single and fixed, and the C-V2X communication technology requires the installation of roadside equipment on both sides of the road, which is not suitable for commercial vehicles traveling across the country. The prior art also provides a traffic light warning light at the rear of a bus, which can provide a signal light synchronized with the traffic light prompt at the intersection ahead for vehicles following the bus, thereby playing a role of prompting and warning. However, it is mainly operated manually, resulting in poor accuracy of operation, which is not conducive to actual operation.

[0025] In view of this, the present invention provides a system and method for synchronously displaying traffic lights at the rear of a commercial vehicle. Without relying on high-precision maps or network connections, the system can accurately identify the countdown time of traffic lights and synchronously display it in real time at the rear of the vehicle to facilitate observation by vehicles behind.

[0026] In some specific embodiments of the present invention, Figure 1 As shown, this solution provides a commercial vehicle rear traffic light synchronization display system, including a camera 11, a navigation module 13, an image processing module 12 and a data processing module 14: The camera 11 is arranged at the front of the vehicle and is used to obtain a real-time image of the traffic light to be identified at the intersection where the vehicle is currently traveling and a timestamp corresponding to the real-time image; The image processing module 12 is connected to the camera 11, and is used to identify the real-time image to obtain the first color information and the first countdown information of the traffic light to be identified; The navigation module 13 is used to obtain real-time navigation information of the vehicle, wherein the real-time navigation information includes the second color information of the traffic light to be identified at the current driving intersection and the second countdown information; The data processing module 14 is connected to the image processing module 12 and the navigation module 13 respectively, and is used to compare the first color information and the first countdown information of the traffic light to be identified with the second color information and the second countdown information, and output the calibrated color information and countdown information of the traffic light to be identified according to the comparison result.

[0027] It should be noted that the existing real-time display solution for traffic lights cannot achieve low-latency execution and can only be implemented when roadside equipment is installed on both sides of the road. The operation is relatively troublesome. In addition, the existing display and warning methods are manually operated, resulting in poor operation accuracy and unable to meet the user's safety and speed needs.

[0028] Therefore, the present invention obtains traffic light information from two sources, and determines the final output traffic light information according to the comparison result of the traffic light information from the two sources. The navigation module can be a vehicle-mounted navigation unit or a mobile phone navigation software used by the user.

[0029] In some possible implementations of the present invention, a camera module is installed in front of a large vehicle to obtain a picture of a traffic light to be identified at the intersection ahead and a timestamp corresponding to the current picture of the traffic light to be identified.

[0030] The image processing unit is located in the cab and is used to recognize and process traffic light images and extract the color and countdown information of traffic lights.

[0031] The navigation module can adopt a vehicle-mounted navigation unit or a mobile phone navigation software. The vehicle-mounted navigation unit is installed on a large vehicle and includes a positioning module, a map database, a navigation software, etc. The mobile phone navigation software can connect to the vehicle via Bluetooth and display the navigation information on the display screen inside the vehicle.

[0032] Specifically, the positioning module determines the vehicle's position by receiving satellite signals and transmits them to the navigation software for processing.

[0033] In a possible embodiment, the vehicle positioning is usually performed using the Global Positioning System (GPS) technology or the Beidou satellite system.

[0034] The map database contains information such as roads, buildings and geographical features. The map database is usually provided by professional map companies. Different manufacturers may use different map data, so the navigation accuracy and coverage will vary.

[0035] Navigation software is an application in the vehicle's navigation unit that is responsible for calculating and presenting driving routes. It can automatically plan the best route based on the vehicle's location and destination information, and display it on the in-car display screen to serve as a prompt for the driver.

[0036] The data processing unit is installed in the cab and is used to compare traffic light information from different sources and obtain accurate traffic light information, as well as to control the rear LED display and buzzer.

[0037] In some possible implementations of the present invention, the commercial vehicle rear traffic light synchronization display system further includes an LED display screen: The LED display screen is arranged at the rear of the vehicle and is used for synchronously displaying the calibrated color information and countdown information of the traffic light to be identified.

[0038] Specifically, this embodiment provides an implementation method for synchronously displaying traffic light information by a synchronous display system of traffic lights at the rear of a commercial vehicle. By setting an LED display screen at the rear of the vehicle, the color information and countdown information of the calibrated traffic lights to be identified are synchronously displayed through the LED display screen.

[0039] In a possible embodiment, if Figure 2 As shown, the LED display screen is installed at the rear of the cargo box of a large commercial vehicle, and is used to display the visualized traffic light status and countdown information processed by the data processing unit.

[0040] Furthermore, the rear LED display screen is powered by a battery installed on the back of the display screen.

[0041] In some possible implementations of the present invention, the commercial vehicle rear traffic light synchronization display system further includes a buzzer; The buzzer is used to give voice prompts to the rear vehicles based on the calibrated color information and countdown information of the traffic light to be identified.

[0042] Specifically, this embodiment provides an implementation method for a commercial vehicle's rear traffic light synchronization display system to provide voice prompts based on traffic light information. A buzzer is set on the vehicle, and the buzzer provides voice prompts to the following vehicle based on the calibrated color information and countdown information of the traffic light to be identified.

[0043] In a possible embodiment, the buzzer is installed at the rear of a cargo box of a large commercial vehicle and is used to issue voice prompts to warn the following vehicles to pay attention to the traffic lights.

[0044] Furthermore, when the countdown of the red light ahead is less than the set value, the buzzer voice broadcasts "the red light will turn green soon", and when the countdown of the green light ahead ends, the buzzer voice broadcasts "the red light ahead, please drive carefully".

[0045] In some possible implementations of the present invention, the data processing module is specifically used to: Compare the first color information with the second color information to obtain a first comparison result; compare the first countdown information with the second countdown information to obtain a second comparison result; If the first comparison result and the second comparison result are consistent, outputting the second color information and the second countdown information; If the first comparison result is consistent and the second comparison result is inconsistent, determining whether the countdown time difference between the first countdown information and the second countdown information is within a preset range; When the countdown time difference between the first countdown information and the second countdown information is within a preset range, the second color information and the second countdown information are output; When the countdown time difference between the first countdown information and the second countdown information is not within a preset range, the first color information and the first countdown information are used for output; If the first comparison result is inconsistent, the first color information and the first countdown information are used for output.

[0046] Specifically, this embodiment provides an implementation method for a data processing module to compare the star green light information from two sources, by comparing the color and countdown of the traffic light respectively, and determining the output traffic light status according to the comparison result.

[0047] In a possible embodiment, the traffic light state obtained by the navigation module is marked as S1, and the countdown is marked as T1, and the traffic light state extracted by the image processing unit is marked as S2, and the countdown is marked as T2; If the traffic light status and countdown information are exactly the same (S1=S2, T1=T2), the traffic light status and countdown information in the navigation are used for output; If the traffic light status is consistent but the countdown information is inconsistent (S1=S2, T1≠T2), then continue to determine whether the countdown time difference between the two sources is within the allowable range. If so, the traffic light status and countdown information in the navigation are used for output; otherwise, the traffic light status and countdown information extracted by the image processing unit are used for output; If the traffic light status is inconsistent (S1≠S2), the traffic light status and countdown information extracted by the image processing unit are output.

[0048] The commercial vehicle rear traffic light synchronization display system provided by the embodiment of the present invention obtains the status information of the traffic lights on the current driving road through the navigation module, and the information is obtained more accurately; the color and countdown information of the traffic lights are extracted through the camera and the image processing unit, which is independent of the network and has no information delay; the color and countdown information of the traffic lights are visualized on the rear LED display screen, and the buzzer voice broadcast is used to prompt the rear vehicles. The traffic lights at the intersection ahead of the current road are photographed by the camera, and the color and countdown information of the traffic lights are obtained after recognition and processing by the image processing unit, and the traffic light information is displayed on the rear LED display screen after processing by the body controller, and the buzzer voice broadcast is used to prompt the rear vehicles; compared with the prior art, it is independent of the network and has no information delay, and can accurately provide traffic light information to the rear vehicles, while increasing the traffic efficiency at the intersection, it can also reduce the occurrence of traffic accidents.

[0049] In some specific embodiments of the present invention, Figure 3 As shown, the present solution also provides a method for synchronously displaying traffic lights at the rear of a commercial vehicle, which is implemented by the synchronously displaying traffic lights at the rear of a commercial vehicle as described in any of the above embodiments; The method comprises: Step 310: Acquire a real-time image of the traffic light to be identified at the intersection where the vehicle is currently traveling and a timestamp corresponding to the real-time image through a camera; Step 320: Recognize the real-time image through an image processing unit to obtain first color information and first countdown information of the traffic light to be recognized; Step 330: acquiring real-time navigation information of the vehicle through a navigation module, wherein the real-time navigation information includes second color information and second countdown information of a traffic light to be identified at the current driving intersection; Step 340: Compare the first color information and the first countdown information of the traffic light to be identified with the second color information and the second countdown information through a data processing unit, and output the calibrated color information and countdown information of the traffic light to be identified based on the comparison result.

[0050] Specifically, this embodiment provides a method for synchronously displaying traffic lights at the rear of a commercial vehicle, which is implemented through a synchronously displaying traffic lights at the rear of a commercial vehicle. Traffic light information from one source is provided through a camera and an image processing unit, and traffic light information from another source is provided through navigation information. The two types of traffic light information are compared, and based on the comparison result, calibrated traffic light information is output to improve the accuracy of the traffic light information.

[0051] In a possible embodiment, an LED display screen is provided in the synchronous display system of the traffic light at the rear of a commercial vehicle, and the LED display screen is provided at the rear of the vehicle. After obtaining the color information and countdown information of the traffic light to be identified, the calibrated color information and countdown information of the traffic light to be identified can be synchronously displayed at the rear of the vehicle through the LED display screen.

[0052] In a possible embodiment, a buzzer is provided in the synchronous display system of the traffic light at the rear of a commercial vehicle. The buzzer is installed at the rear of the cargo box of a large commercial vehicle. After obtaining the color information and countdown information of the traffic light to be identified, the buzzer can give voice prompts to the rear vehicle based on the calibrated color information and countdown information of the traffic light to be identified.

[0053] In some possible implementations of the present invention, the step of comparing the first color information and the first countdown information of the traffic light to be identified with the second color information and the second countdown information, and outputting the calibrated color information and countdown information of the traffic light to be identified according to the comparison result specifically includes: Compare the first color information with the second color information to obtain a first comparison result; compare the first countdown information with the second countdown information to obtain a second comparison result; If the first comparison result and the second comparison result are consistent, outputting the second color information and the second countdown information; If the first comparison result is consistent and the second comparison result is inconsistent, determining whether the countdown time difference between the first countdown information and the second countdown information is within a preset range; When the countdown time difference between the first countdown information and the second countdown information is within a preset range, the second color information and the second countdown information are output; When the countdown time difference between the first countdown information and the second countdown information is not within a preset range, the first color information and the first countdown information are used for output; If the first comparison result is inconsistent, the first color information and the first countdown information are used for output.

[0054] Specifically, this embodiment provides an implementation method for comparing and calibrating traffic light information from two sources, by comparing the color information and countdown information of the traffic light, and outputting the traffic light information according to different comparison results.

[0055] In a possible embodiment, the navigation module includes a vehicle-mounted navigation unit and a mobile phone navigation software. The vehicle-mounted navigation unit is installed on a large vehicle and includes a positioning unit, a map database, and a navigation software; the mobile phone navigation software can be connected to the vehicle via Bluetooth to display the navigation information on the in-vehicle display screen. The positioning unit determines the vehicle position by receiving satellite signals and transmits them to the navigation software for processing. In terms of vehicle navigation, the global satellite positioning system (GPS) technology or the Beidou satellite system is usually used for positioning. The map database contains information such as roads, buildings, and geographical features. The map database is usually provided by a professional map company, and different manufacturers may use different map data, so the accuracy and coverage of navigation will vary. The navigation software is an application in the vehicle-mounted navigation unit that is responsible for calculating and presenting the driving route. It can automatically plan the best route based on the vehicle location and destination information, and display it on the in-vehicle display screen to prompt the driver.

[0056] Based on the above embodiments, the method for synchronously displaying traffic lights at the rear of a commercial vehicle may include two methods: a method for synchronously displaying traffic lights by a vehicle-mounted navigation unit and a method for synchronously displaying traffic lights by a mobile phone navigation module.

[0057] In some possible embodiments of the present invention, Figure 4 As shown, Figure 4 The present invention provides a flow chart of a method for realizing synchronous display of traffic lights by using a vehicle-mounted navigation unit. The method comprises the following specific steps: Step 1: Start the vehicle and turn on the vehicle navigation unit; Step 2: The positioning module receives the signal transmitted by the satellite to obtain the vehicle location information in real time; Step 3: The vehicle location information is sent to the map database, and the information around the vehicle is packaged; the information around the vehicle includes: the real-time location information of the vehicle, the vehicle's driving direction and speed, the traffic light information at the intersection ahead, the road clearing information, etc.; the traffic light information on the road ahead includes: the status of the traffic light and the countdown information; the front camera of the vehicle obtains the image of the traffic light to be identified at the current intersection and the timestamp corresponding to the current traffic light image to be identified; the image processing unit extracts the color of the traffic light, the countdown information, etc. after identifying the image.

[0058] Step 4: All traffic light information from the two sources in step 3 is transmitted to the data processing unit. The data processing unit compares and corrects the traffic information from the two sources, and outputs the corrected traffic light information to the rear LED display and buzzer. The LED screen is used to display the traffic light status information of the current intersection, and the buzzer is used for voice prompts.

[0059] In some possible embodiments of the present invention, Figure 5 As shown, Figure 5 The figure is a flow chart of a method for realizing synchronous display of traffic lights by a mobile phone navigation module provided by the present invention, wherein the specific steps of the method are as follows: Step 1: Start the vehicle and connect the phone to the vehicle via Bluetooth; Step 2: The driver opens the mobile map software, enters the destination, and the phone displays multiple routes; Step 3: The driver selects one of the routes, and the in-car display screen displays the best driving route, road clearing information, and traffic light information at the intersection ahead and broadcasts them to prompt the driver to drive; the front camera of the vehicle obtains the current traffic light image to be identified at the intersection and the timestamp corresponding to the current traffic light image to be identified; the image processing unit recognizes the image and extracts the color of the traffic light, countdown information, etc.

[0060] Step 4: All traffic light information from the two sources in step 3 is transmitted to the data processing unit. The data processing unit compares and corrects the traffic information from the two sources, and outputs the corrected traffic light information to the rear LED display and buzzer. The LED screen is used to display the traffic light status information of the current intersection, and the buzzer is used for voice prompts.

[0061] In a possible embodiment, the commercial vehicle rear traffic light synchronous display system also includes a central control screen, and each module is controlled by the central control screen to realize corresponding functions.

[0062] The embodiment of the present invention provides a system and method for synchronous display of traffic lights at the rear of a commercial vehicle, which relates to the field of automobile safety technology, and mainly includes: a vehicle-mounted navigation unit or mobile phone navigation software, a camera, an image processing unit, a data processing unit, a buzzer, a central control screen, an LED display screen, etc. The implementation method is: first, the vehicle-mounted navigation unit or mobile phone navigation software obtains the current road information and traffic light status from the cloud, and sends it to the data processing unit; at the same time, the front camera of the vehicle obtains the current traffic light picture to be identified and the timestamp corresponding to the current traffic light picture to be identified; the image processing unit extracts the color, countdown information, etc. of the traffic light after identifying the picture, and sends it to the data processing unit; the data processing unit compares the information of the two and obtains accurate traffic light countdown information and sends it to the central control screen and the rear LED display screen to display the traffic light status information of the current intersection. Through the present invention, traffic light information can be effectively disseminated to ensure the safety and orderliness of vehicle traffic on the current road.

[0063] Figure 6 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 6As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the method for synchronously displaying the rear traffic lights of a commercial vehicle, the method comprising: obtaining a real-time image of a traffic light to be identified at a current intersection of the vehicle through a camera and a timestamp corresponding to the real-time image; identifying the real-time image through an image processing unit to obtain the first color information and the first countdown information of the traffic light to be identified; obtaining the real-time navigation information of the vehicle through a navigation module, wherein the real-time navigation information includes the second color information and the second countdown information of the traffic light to be identified at the current intersection; comparing the first color information and the first countdown information of the traffic light to be identified with the second color information and the second countdown information of the traffic light to be identified through a data processing unit, and outputting the calibrated color information and countdown information of the traffic light to be identified according to the comparison result.

[0064] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0065] On the other hand, the present invention also provides a computer program product, which includes a computer program, which can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the method for synchronous display of traffic lights at the rear of a commercial vehicle provided by the above methods, the method including: obtaining a real-time image of a traffic light to be identified at a current intersection where the vehicle is traveling and a timestamp corresponding to the real-time image through a camera; identifying the real-time image through an image processing unit to obtain first color information and first countdown information of the traffic light to be identified; obtaining real-time navigation information of the vehicle through a navigation module, wherein the real-time navigation information includes second color information and second countdown information of the traffic light to be identified at the current intersection; comparing the first color information and first countdown information of the traffic light to be identified with the second color information and second countdown information of the traffic light to be identified through a data processing unit, and outputting the calibrated color information and countdown information of the traffic light to be identified according to the comparison result.

[0066] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the method for synchronously displaying the rear traffic lights of a commercial vehicle provided by the above-mentioned methods, the method comprising: obtaining a real-time image of a traffic light to be identified at a current intersection where the vehicle is traveling and a timestamp corresponding to the real-time image through a camera; identifying the real-time image through an image processing unit to obtain first color information and first countdown information of the traffic light to be identified; obtaining real-time navigation information of the vehicle through a navigation module, wherein the real-time navigation information includes second color information and second countdown information of the traffic light to be identified at the current intersection; comparing the first color information and first countdown information of the traffic light to be identified with the second color information and second countdown information of the traffic light to be identified through a data processing unit, and outputting the calibrated color information and countdown information of the traffic light to be identified based on the comparison result.

[0067] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0068] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A commercial vehicle rear traffic light synchronization display system, characterized in that: Including camera, navigation module, image processing module, data processing module: The camera is arranged at the front of the vehicle and is used to obtain a real-time image of the traffic light to be identified at the intersection where the vehicle is currently traveling and a timestamp corresponding to the real-time image; The image processing module is connected to the camera and is used to identify the real-time image to obtain the first color information and the first countdown information of the traffic light to be identified; The navigation module is used to obtain real-time navigation information of the vehicle, wherein the real-time navigation information includes second color information of a traffic light to be identified at a current driving intersection and second countdown information; The data processing module is connected to the image processing module and the navigation module respectively, and is used to compare the first color information and the first countdown information of the traffic light to be identified with the second color information and the second countdown information, and output the calibrated color information and countdown information of the traffic light to be identified according to the comparison result.

2. The commercial vehicle rear traffic light synchronous display system according to claim 1, characterized in that: Also includes LED display: The LED display screen is arranged at the rear of the vehicle and is used for synchronously displaying the calibrated color information and countdown information of the traffic light to be identified.

3. The commercial vehicle rear traffic light synchronous display system according to claim 1, characterized in that: Also includes a buzzer; The buzzer is used to give voice prompts to the rear vehicles based on the calibrated color information and countdown information of the traffic light to be identified.

4. The commercial vehicle rear traffic light synchronous display system according to any one of claims 1 to 3, characterized in that: The data processing module is specifically used for: Compare the first color information with the second color information to obtain a first comparison result; compare the first countdown information with the second countdown information to obtain a second comparison result; If the first comparison result and the second comparison result are consistent, outputting the second color information and the second countdown information; If the first comparison result is consistent and the second comparison result is inconsistent, determining whether the countdown time difference between the first countdown information and the second countdown information is within a preset range; When the countdown time difference between the first countdown information and the second countdown information is within a preset range, the second color information and the second countdown information are output; When the countdown time difference between the first countdown information and the second countdown information is not within a preset range, the first color information and the first countdown information are used for output; If the first comparison result is inconsistent, the first color information and the first countdown information are used for output.

5. A method for synchronously displaying traffic lights at the rear of a commercial vehicle, characterized in that: It is achieved by the commercial vehicle rear traffic light synchronization display system according to any one of claims 1 to 4; The method comprises: Acquire a real-time image of the traffic light to be identified at the intersection where the vehicle is currently traveling and a timestamp corresponding to the real-time image through a camera; Recognize the real-time image through an image processing unit to obtain first color information and first countdown information of the traffic light to be recognized; Acquiring real-time navigation information of the vehicle through a navigation module, wherein the real-time navigation information includes second color information of a traffic light to be identified at a current driving intersection and second countdown information; The first color information and the first countdown information of the traffic light to be identified are compared with the second color information and the second countdown information through a data processing unit, and the calibrated color information and countdown information of the traffic light to be identified are output according to the comparison result.

6. The method for synchronously displaying traffic lights at the rear of a commercial vehicle according to claim 5, characterized in that: After obtaining the color information and countdown information of the traffic light to be identified, the method further includes: The calibrated color information and countdown information of the traffic light to be identified are synchronously displayed at the rear of the vehicle.

7. The method for synchronously displaying traffic lights at the rear of a commercial vehicle according to claim 5, characterized in that: After obtaining the color information and countdown information of the traffic light to be identified, the method further includes: Based on the calibrated color information and countdown information of the traffic light to be identified, a voice prompt is given to the vehicle behind.

8. The method for synchronously displaying traffic lights at the rear of a commercial vehicle according to claim 5, characterized in that: The step of comparing the first color information and the first countdown information of the traffic light to be identified with the second color information and the second countdown information, and outputting the calibrated color information and countdown information of the traffic light to be identified according to the comparison result specifically includes: Compare the first color information with the second color information to obtain a first comparison result; compare the first countdown information with the second countdown information to obtain a second comparison result; If the first comparison result and the second comparison result are consistent, outputting the second color information and the second countdown information; If the first comparison result is consistent and the second comparison result is inconsistent, determining whether the countdown time difference between the first countdown information and the second countdown information is within a preset range; When the countdown time difference between the first countdown information and the second countdown information is within a preset range, the second color information and the second countdown information are output; When the countdown time difference between the first countdown information and the second countdown information is not within a preset range, the first color information and the first countdown information are used for output; If the first comparison result is inconsistent, the first color information and the first countdown information are used for output.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method for synchronously displaying rear traffic lights of a commercial vehicle as claimed in any one of claims 5 to 8 is implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for synchronously displaying rear traffic lights of a commercial vehicle as claimed in any one of claims 5 to 8 is implemented.

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