Road sign information generation device

Abstract

The utility model discloses a road sign information generation device. The road sign information generation device specifically comprises a main control unit, a positioning module and an image acquisition module, the image acquisition module is connected to the main control unit through a gigabit multimedia serial link interface, and the image acquisition module is configured to be used for acquiring image information of a road traffic sign and transmitting the image information to the main control unit through the gigabit multimedia serial link interface; the positioning module is connected to the main control unit through a serial communication interface, and the positioning module is configured to provide positioning information for the main control unit; the main control unit comprises at least one processing chip, and the processing chip receives the image information and the positioning information and outputs road sign information. According to the embodiment of the utility model, the automatic identification and recording of the road traffic sign are realized, the processing efficiency of the road sign information is enhanced, the positioning precision of the road sign information generating device is improved, and the problems that the traditional road sign information is not updated in time and the acquisition standard is not uniform are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-road collaboration, and in particular to a road sign information generating device. Background Art

[0002] As a vehicle-road-cloud collaborative communication and interaction system, the key to the application of vehicle-road collaboration lies in the real-time broadcasting of roadside information. Among them, road sign information, as a type of roadside information, all comes from road signs on actual road poles. The traditional method of collecting and processing road traffic sign information mainly relies on manual on-site point-by-point inspections. However, with the continuous acceleration of urbanization, the road traffic system is becoming increasingly complex, and the number and types of traffic signs are increasing. The manual on-site point-by-point inspection method is prone to missing key information, resulting in low collection accuracy and a lack of uniformity in collection standards. In addition, the low efficiency of manual on-site point-by-point inspections leads to the inability to update road sign information in real time and cannot meet the rapidly changing road traffic needs. Therefore, realizing the automatic recognition and recording of road traffic signs, timely updating of road sign information, unifying road sign information collection standards, and improving the positioning accuracy of sign information generation devices have become urgent issues to be solved in the field of vehicle-road collaboration technology. Utility Model Content

[0003] The utility model provides a road sign information generation device, which realizes the automatic recognition and recording of road traffic signs, improves the efficiency of collecting and processing road traffic sign information, and solves the problems of traditional road sign information not being updated in a timely manner, inconsistent sign information collection standards, and low device positioning accuracy.

[0004] The present invention provides a road sign information generating device, comprising:

[0005] Main control unit, positioning module, image acquisition module;

[0006] The image acquisition module is connected to the main control unit via a gigabit multimedia serial link interface, and the image acquisition module is configured to acquire image information of the road traffic sign and transmit it to the main control unit via the gigabit multimedia serial link interface;

[0007] The positioning module is connected to the main control unit via a serial communication interface, and the positioning module is configured to provide positioning information to the main control unit;

[0008] The main control unit includes at least one processing chip, which receives image information and positioning information and outputs road sign information.

[0009] Furthermore, the road sign information generating device further includes:

[0010] The communication module is connected to the main control unit via a serial universal bus and is configured to provide communication information to the main control unit.

[0011] Furthermore, the road sign information generating device further includes:

[0012] The storage module is connected to the communication module via a bus and is used to store the road sign information of the main control unit and the communication information provided by the communication module.

[0013] Furthermore, the positioning module includes:

[0014] Dual-frequency receiving and positioning module. The signal receiving frequencies of the dual-frequency receiving and positioning module include L1 frequency and L5 frequency. The positioning accuracy of the dual-frequency receiving and positioning module is at the meter level.

[0015] Furthermore, the road sign information generating device further includes:

[0016] The status indicator light is connected to the main control unit. The status indicator light triggers different lighting colors according to the status signal of the main control unit.

[0017] Furthermore, the road sign information generating device further includes:

[0018] The power input port is used to obtain energy for operating the road sign information generating device.

[0019] Furthermore, the processing chip stores a road sign information generation model, and the road sign information generation model adopts the YOLOV5 architecture.

[0020] Furthermore, the road sign information generating device further includes: a cloud service platform, which is communicatively connected to the main control unit via the communication module, and the cloud service platform is used to receive the road sign information transmitted by the road sign information generating device.

[0021] Furthermore, the road sign information generating device is installed at an unobstructed position on the vehicle.

[0022] Furthermore, the camera elevation angle of the image acquisition module is configured as a preset angle, and the preset angle is stored in the installation calibration information table of the road sign information generating device.

[0023] In an embodiment of the present utility model, the road sign information generating device includes at least: a main control unit, a positioning module and an image acquisition module. The main control unit, as the core component of the road sign information generating device, is connected to the image acquisition module through a gigabit multimedia serial link interface, and is connected to the positioning module through a serial communication interface. The main control unit includes at least one processing chip for receiving image information and positioning information and outputting road sign information. The image acquisition module is responsible for collecting image information of road traffic signs and transmitting it to the processing chip of the main control unit through the gigabit multimedia serial link interface. The positioning module is responsible for generating positioning information and transmitting it to the processing chip of the main control unit through the serial communication interface. The processing chip outputs road sign information based on the image information and positioning information. The road sign information generating device of the embodiment of the present utility model is composed of at least a main control unit, a positioning module and an image acquisition module. The image acquisition module is used as a part of the road sign information generating device, and the image acquisition module is used to collect image information of road traffic signs, thereby realizing automatic recognition and recording of road signs, solving the problem of inconsistent sign information collection standards, and thus improving the collection and processing efficiency of road sign information. The positioning module is used as a part of the road sign information generating device, and the positioning module is used to generate positioning information, thereby improving the positioning accuracy of the road sign information generating device. The main control unit is used as a part of the road sign information generating device, and the main control unit is used to output road sign information based on image information and positioning information, thereby enhancing the processing efficiency of road sign information, ensuring the real-time nature of road sign information, and solving the problem of untimely updating of traditional road traffic sign information.

[0024] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of a road sign information generating device provided according to an embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of another road sign information generating device provided according to an embodiment of the present utility model;

[0028] Figure 3It is a schematic diagram of another road sign information generating device provided according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0029] In order to help those skilled in the art better understand the present invention, 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 should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the numbers used in this manner are interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a list of products or devices is not necessarily limited to those explicitly listed, but may include other elements that are not explicitly listed or inherent to those products or devices.

[0031] Figure 1 A schematic diagram of a road sign information generating device provided by an embodiment of the present utility model, see Figure 1 As shown, the road sign information generating device includes:

[0032] Main control unit 110, positioning module 120, image acquisition module 130;

[0033] The image acquisition module 130 is connected to the main control unit 110 via a gigabit multimedia serial link interface. The image acquisition module 130 is configured to collect image information of road traffic signs and transmit it to the main control unit 110 via the gigabit multimedia serial link interface.

[0034] The positioning module 120 is connected to the main control unit 110 via a serial communication interface, and the positioning module 120 is configured to provide positioning information to the main control unit 110;

[0035] The main control unit 110 includes at least one processing chip, which receives image information and positioning information and outputs road sign information.

[0036] In the embodiment of the present invention, the main control unit 110 is a core component of the road sign information generating device, which is used to receive and process data. For example, the main control unit 110 is responsible for receiving the image information output by the image acquisition module 130 and the positioning information output by the positioning module 120, and processing the image information and positioning information to generate corresponding road sign information. The image information can be understood as the visual information of the shooting object presented in the image. For example, the shooting object at least includes: road traffic signs, and the visual information includes but is not limited to: text, symbols and colors on the shooting object, etc. ; Positioning information can be understood as a type of data containing the specific geographical location of the road sign information generating device, wherein the specific geographical location can be described by latitude and longitude coordinates. For example, the current location of the road sign is 116°23′26.93″ east longitude and 39°54′26.92″ north latitude; road sign information can be understood as a type of traffic and navigation information used to ensure safe and orderly operation of road traffic, wherein road sign information may include: road conditions or traffic rules. For example, the vehicle can adjust the driving speed based on the road conditions in the road sign information to ensure driving safety.

[0037] The processing chip serves as the core computing component of the main control unit 110 and is used to receive and process data. For example, the processing chip is responsible for receiving image information and positioning information, and processing the received image information and positioning information to output road sign information.

[0038] The positioning module 120 can be understood as a hardware component for obtaining the current position of the device and for generating positioning information. For example, the positioning module 120 can include: a global positioning system or a global navigation satellite system.

[0039] The image acquisition module 130 can be understood as a hardware component for capturing and obtaining image information. For example, the image acquisition module 130 can include: a camera or an image sensor.

[0040] The Gigabit Multimedia Serial Link Interface can be understood as a communication interface, where Gigabit refers to the data transmission rate. The Gigabit Multimedia Serial Link Interface supports a data transmission rate of 1000 megabits per second. Multimedia means that the interface can simultaneously process and transmit multiple different types of media data. For example, the types of media data may include: video type or audio type. Serial refers to the data transmission method. In serial transmission, data is transmitted one by one in a bit sequence.

[0041] A serial communication interface can be understood as a data transmission interface whose transmission mode is serial transmission. In a serial communication interface, data is transmitted sequentially in the form of a bit sequence.

[0042] Specifically, the road sign information generating device includes at least the following components: a main control unit 110, a positioning module 120 and an image acquisition module 130, wherein the main control unit 110, as the core component of the road sign information generating device, is connected to the image acquisition module 130 through a gigabit multimedia serial link interface, and is connected to the positioning module 120 through a serial communication interface. The image acquisition module 130 is responsible for capturing and obtaining the image information presented by the photographed object, and transmitting it to the main control unit 110 through the gigabit multimedia serial link interface. The positioning module 120 is used to obtain the specific geographic location of the device, generate positioning information, and transmit it to the main control unit 110 through the serial communication interface. The main control unit 110 includes at least one processing chip for receiving and processing data. The processing chip is responsible for receiving image information from the image acquisition module 130 and positioning information from the positioning module 120, and outputting road sign information based on the image information and positioning information.

[0043] In an embodiment of the present utility model, the road sign information generating device includes at least: a main control unit 110, a positioning module 120 and an image acquisition module 130. The main control unit 110, as the core component of the road sign information generating device, is connected to the image acquisition module 130 through a gigabit multimedia serial link interface, and is connected to the positioning module 120 through a serial communication interface. The main control unit 110 includes at least one processing chip for receiving image information and positioning information and outputting road sign information. The image acquisition module 130 is responsible for collecting image information of road traffic signs and transmitting it to the processing chip of the main control unit 110 through the gigabit multimedia serial link interface. The positioning module 120 is responsible for generating positioning information and transmitting it to the processing chip of the main control unit 110 through the serial communication interface. The processing chip outputs road sign information based on the image information and positioning information. The road sign information generating device of the embodiment of the present utility model is composed of at least a main control unit 110, a positioning module 120 and an image acquisition module 130. The image acquisition module 130 is used as a part of the road sign information generating device, and the image acquisition module 130 is used to collect image information of road traffic signs, thereby realizing automatic recognition and recording of road signs, solving the problem of inconsistent sign information collection standards, and thereby improving the collection and processing efficiency of road sign information. The positioning module 120 is used as a part of the road sign information generating device, and the positioning module 120 is used to generate positioning information, thereby improving the positioning accuracy of the road sign information generating device. The main control unit 110 is used as a part of the road sign information generating device, and the main control unit 110 is used to output road sign information based on image information and positioning information, thereby enhancing the processing efficiency of road sign information, ensuring the real-time nature of road sign information, and solving the problem of untimely updating of traditional road traffic sign information.

[0044] Figure 2Another schematic diagram of a road sign information generating device provided by an embodiment of the present utility model is shown in FIG. Figure 2 As shown, the road sign information generating device also includes:

[0045] The communication module 140 is connected to the main control unit 110 via a serial universal bus. The communication module 140 is configured to provide communication information to the main control unit 110 .

[0046] In an embodiment of the present invention, the serial universal bus can be understood as a network for data exchange and communication. The serial universal bus performs data exchange and communication based on a communication protocol. The communication module 140 establishes a connection with the main control unit 110 through the serial universal bus. The communication module 140 transmits communication information to the main control unit 110 through the serial universal bus. The communication information can be understood as a type of data transmitted between devices or systems. For example, the communication information is transmitted between the communication module 140 and the main control unit 110, and the communication module 140 transmits the communication information to the main control unit 110. The communication information may include: weather information transmitted from the peripheral device to the communication module 140 or traffic condition information transmitted from the peripheral device to the communication module 140.

[0047] Specifically, the road sign information generating device includes not only a main control unit 110, a positioning module 120 and an image acquisition module 130, but also a communication module 140. The communication module 140 establishes a connection with the main control unit 110 through a serial universal bus, wherein the communication module 140 is responsible for providing communication information to the main control unit 110, and the communication module 140 transmits the communication information to the main control unit 110 through the serial universal bus.

[0048] Further, in the embodiment of the present utility model, see Figure 2 As shown, the road sign information generating device also includes:

[0049] The storage module 150 is connected to the communication module 140 via a bus and is used to store the road sign information of the main control unit 110 and the communication information provided by the communication module 140 .

[0050] In an embodiment of the present invention, the bus can be understood as a data transmission channel used for information transmission between different modules, wherein the transmission of data on the bus must comply with a communication protocol. For example, the bus may include: a serial universal bus or a controller area network bus, and the communication protocol may include: a serial universal bus protocol or a controller area network bus protocol.

[0051] Specifically, the road sign information generating device not only includes a main control unit 110, a positioning module 120, an image acquisition module 130 and a communication module 140, but also includes a storage module 150. The storage module 150 establishes a connection with the communication module 140 through a bus, and the communication module 140 transmits communication information to the storage module 150 through the bus. The main control unit 110 uses the communication module 140 as a transmission bridge to pass the acquired road sign information to the storage module 150, and the storage module 150 stores the received road sign information and communication information.

[0052] Further, in the embodiment of the present utility model, see Figure 2 As shown, the positioning module 120 includes: a dual-frequency receiving positioning module 1201. The signal receiving frequencies of the dual-frequency receiving positioning module 1201 include L1 frequency and L5 frequency. The positioning accuracy of the dual-frequency receiving positioning module 1201 is at the meter level.

[0053] In an embodiment of the present utility model, the dual-frequency receiving positioning module 1201 can be understood as a positioning device that supports receiving multiple frequency signals, which is used to improve the positioning accuracy. For example, the frequencies supported by the dual-frequency receiving positioning module 1201 include at least: L1 frequency and L5 frequency, wherein the L1 frequency is an electromagnetic wave frequency band with a center frequency of 1575.42 MHz, and the L5 frequency is an electromagnetic wave frequency band with a center frequency of 1176.45 MHz.

[0054] Specifically, the positioning module 120 includes at least a dual-frequency receiving positioning module 1201 that supports receiving multiple frequency signals, wherein the signal receiving frequencies of the dual-frequency receiving positioning module 1201 include at least: L1 frequency with a center frequency of 1575.42 MHz and L5 frequency with a center frequency of 1176.45 MHz. The dual-frequency receiving positioning module 1201 simultaneously receives L1 frequency and L5 frequency signals, so that the positioning accuracy of the dual-frequency receiving positioning module 1201 reaches the meter level, thereby improving the positioning accuracy of the positioning module 120.

[0055] Further, in the embodiment of the present utility model, see Figure 2 As shown, the road sign information generating device further includes: a status indicator light 160 , which is connected to the main control unit 110 , and the status indicator light 160 triggers different lighting colors according to the status signal of the main control unit 110 .

[0056] In the embodiment of the present invention, the status signal can be understood as an instruction to control the behavior of the status indicator light 160, which is issued by the main control unit 110 and is used to reflect the working status of the main control unit 110. For example, the status signal may include: an operation signal or a fault signal.

[0057] Specifically, the road sign information generating device not only includes a main control unit 110, a positioning module 120, an image acquisition module 130, a communication module 140 and a storage module 150, but also includes a status indicator light 160, wherein the status indicator light 160 is connected to the main control unit 110, and the status indicator light 160 is responsible for receiving a status signal sent by the main control unit 110 for controlling the behavior of the status indicator light 160, and the status indicator light 160 triggers different light colors based on the received status signal.

[0058] For example, if the status signal sent by the main control unit 110 is an operating signal, it means that the main control unit 110 can operate normally to receive and process data, and then the status indicator light 160 lights up green based on the received operating signal. If the status signal sent by the main control unit 110 is a fault signal, it means that the main control unit 110 has a fault and cannot receive and process data, and then the status indicator light 160 lights up red based on the received fault signal.

[0059] Further, in the embodiment of the present utility model, see Figure 2 As shown, the road sign information generating device further includes: a power input port 170, which is used to obtain energy for running the road sign information generating device.

[0060] In the embodiment of the present invention, the power input port 170 can be understood as a power interface. For example, the power input port 170 can include: a serial universal bus interface or a direct current power interface.

[0061] Specifically, the road sign information generating device not only includes a main control unit 110, a positioning module 120, an image acquisition module 130, a communication module 140, a storage module 150 and a status indicator light 160, but also includes: a power input port 170, wherein the power input port 170 of the road sign information generating device is responsible for obtaining the energy required to operate the road sign information generating device, ensuring the continuous and stable operation of the road sign information generating device.

[0062] For example, the external power supply directly provides the road sign information generating device with the energy required to operate the road sign information generating device through the power input port 170 , thereby ensuring that the road sign information generating device operates continuously and stably.

[0063] Furthermore, in an embodiment of the present invention, the processing chip stores a road sign information generation model, and the road sign information generation model adopts the YOLOV5 architecture.

[0064] In the embodiment of the present invention, the road sign information generation model can be understood as an algorithm model, and the road sign information is generated based on the road sign information generation model.

[0065] The YOLOV5 architecture is a target detection model based on deep learning. The road sign information generation model is designed and trained based on the YOLOV5 architecture.

[0066] Specifically, an algorithm model for generating road sign information is stored in the processing chip of the main control unit 110. The algorithm model is defined as a road sign information generation model, wherein the road sign information generation model is designed and trained using the YOLOV5 architecture.

[0067] For example, the YOLOV5 architecture includes: a backbone network, a neck network, and a head network. The neck network is implemented by a feature pyramid network (FPN) and a path aggregation network (PAN). The backbone network extracts features from the image layer by layer through multiple convolutional layers and activation functions. The neck network processes and integrates the features extracted from the backbone network for subsequent target detection. The head network converts the feature map output by the neck network into specific detection results. The YOLOV5 architecture adds multi-task loss functions, including positioning loss function, confidence loss function, and classification loss function, which improves the detection performance of the road sign information generation model. In terms of data recognition, the YOLOV5 architecture uses data enhancement technology to improve the robustness of the road sign information generation model by increasing and diversifying the training data.

[0068] For example, the training method of the road sign information generation model based on the YOLOV5 architecture can be implemented by the following command: python train.py --img 640 --batch 16 --epochs50 --data data / my_data.yaml --weights yolov5s.pt –cache, where --img 640 is the size of the input image, indicating that the size of the specified input image is 640x640 pixels. The specified image size can balance the accuracy and computational efficiency of the model and ensure that sufficient detail information can be captured when processing road signs; --batch 16 is the size of each batch, indicating that the model will process 16 images at the same time, which can speed up the training process; --epochs 50 is the number of training rounds, which is 50 rounds. Through multiple rounds of training, the model can gradually adjust the parameters to better adapt to the training data and improve the recognition accuracy; --datadata / my_data.yaml is the data configuration file, which contains the category labels of the training data set and the segmentation method of the data set; --weights yolov5s.pt refers to the pre-trained weight file: yolov5s.pt, which enables the model to utilize existing knowledge in the early stages of training, speeding up convergence and improving final performance; -cache is a flag used to enable data caching, which reduces data reading time during each training by pre-loading data into memory.

[0069] For example, the algorithm for evaluating a road sign information generation model can be implemented using the following command: python val.py --weights runs / train / exp / weights / best.pt --data data / my_data.yaml --img-size 640 --iou-thres 0.4 . "weights runs / train / exp / weights / best.pt" specifies the path to the model weights file to be evaluated, and "data data / my_data.yaml" specifies the data configuration file. This ensures that the evaluation dataset is consistent with the training dataset, facilitating accurate evaluation of model performance. "--img-size 640" sets the input image size to 640x640 pixels during evaluation, ensuring consistency with training so that the model can effectively process the input data. "--iou-thres 0.4" sets the intersection-over-union (IoU) threshold to 0.4. During evaluation, the IoU threshold measures the degree of overlap between the predicted box and the ground-truth box. When the IoU threshold exceeds this threshold, the prediction is considered a valid detection.

[0070] For further information, see Figure 2 As shown, the road sign information generating device further includes: a cloud service platform 180, which is communicatively connected to the main control unit 110 via the communication module 140, and is used to receive the road sign information transmitted by the road sign information generating device.

[0071] In the embodiment of the present invention, the cloud service platform 180 can be understood as a remote service platform based on the Internet or cloud computing technology. The purpose of the cloud platform may include: receiving road sign information or remotely controlling the main control unit 110.

[0072] A communication connection refers to a connection between different systems or components established through a communication protocol. For example, the communication protocol may include: a serial peripheral interface protocol or a local interconnect network bus protocol. Different systems or components can exchange data and transfer information through a communication connection.

[0073] Specifically, the road sign information generating device not only includes a main control unit 110, a positioning module 120, an image acquisition module 130, a communication module 140, a storage module 150, a status indicator light 160 and a power input port 170, but also includes: a cloud service platform 180 based on the Internet or cloud computing technology. The cloud service platform 180 establishes a connection with the main control unit 110 through the communication module 140. In the road sign information generating device, the processing chip in the main control unit 110 is responsible for outputting road sign information. The main control unit 110 in the road sign information generating device follows the communication protocol to transmit the road sign information output by the processing chip to the cloud service platform 180. The cloud service platform 180 is responsible for receiving the road sign information transmitted by the road sign information generating device.

[0074] Furthermore, in an embodiment of the present invention, the installation position of the road sign information generating device is located at an unobstructed position of the vehicle.

[0075] Specifically, the road sign information generating device should be installed in an unobstructed and wide-viewing position on the vehicle to ensure that the road sign information generating device can effectively receive signals and perform image acquisition, thereby ensuring accurate generation of road sign information.

[0076] Furthermore, in an embodiment of the present invention, the camera elevation angle of the image acquisition module 130 is configured as a preset angle, and the preset angle is stored in the installation calibration information table of the road sign information generating device.

[0077] In the embodiment of the present invention, the camera elevation angle can be understood as the tilt angle of the camera relative to the horizontal plane. For example, the camera elevation angle may include: the camera is tilted 30 degrees upward relative to the horizontal plane or the camera is tilted 35 degrees downward relative to the horizontal plane.

[0078] The preset angle can be understood as a fixed tilt angle set according to requirements or standards, which is used to ensure that the image acquisition module 130 can capture road sign images in the best manner.

[0079] The installation calibration information table can be understood as a document containing installation parameters and configurations of various devices. For example, various devices may include: image acquisition module 130 or positioning module 120, and the installation calibration information table may include: the preset angle of the image acquisition module 130 or the installation position of the positioning module 120.

[0080] Specifically, the fixed preset angle of the image acquisition module 130 set according to requirements or standards is searched in the installation calibration information table containing various equipment installation parameters and configurations, and the camera elevation angle of the image acquisition module 130 is configured based on the found preset angle.

[0081] Figure 3 Another schematic diagram of a road sign information generating device provided by an embodiment of the present utility model is shown in FIG. Figure 3As shown, the road sign information generating device includes: a power system (Power System), a system on chip (System on Chip, S0C), a positioning module 120, a 4G industrial module, a microcontroller unit (Microcontroller Unit, MCU), an embedded Multi Media Card (embedded Multi Media Card, eMMC), a camera and an indicator light, wherein the SOC includes: a general purpose input / output (General Purpose Input / Output, GPIO) interface, a universal serial bus (Universal Serial Bus, USB) interface, a gigabit multimedia serial link (Gigabit Multimedia Serial Link, GMSL) interface and a universal asynchronous receiver / transmitter (UART) interface. In the road sign information generating device, the positioning module 120 is connected to the SOC through the GPIO interface and the UART interface, the 4G industrial module is connected to the SOC through the GPIO interface and the USB interface, the MCU is connected to the SOC through the UART interface and the power supply system through the GPIO interface, the eMMC is connected to the SOC through the GPIO interface, the camera is connected to the SOC through the GMSL interface, and the indicator light is connected to the SOC through the UART interface. In the road sign information generation device, the SOC is responsible for processing camera data and generating road sign information. The SOC, as the main control unit 110, is responsible for the access of peripheral devices and the operation management of peripheral devices. The positioning module 120 uses the global navigation satellite system to provide positioning and timing, and adopts the L1+L5 dual-frequency receiving module. The positioning accuracy can reach the meter level. The 4G industrial module is responsible for data interaction with the business platform and upper-layer applications to realize the uploading of collected data. It is equipped with a removable micro SIM card (Micro SIM Card). The camera uses the GMSL standard interface to connect to the SOC. The camera interface can realize camera replacement or use equipment to install the camera, which can further reduce the equipment deployment cost. The status indicator light 160 supports controlling the light-emitting diode to display different light colors according to the equipment operation status to indicate the system operation status. The eMMC is used for local storage of sign result data and operation data, with the advantages of small size, low power consumption and large capacity.

[0082] It should be understood that the above specific embodiments do not limit the scope of protection of the embodiments of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A road sign information generating device, characterized in that: The device includes: a main control unit, a positioning module, and an image acquisition module; The image acquisition module is connected to the main control unit via a gigabit multimedia serial link interface, and the image acquisition module is configured to collect image information of road traffic signs and transmit the image information to the main control unit via the gigabit multimedia serial link interface; The positioning module is connected to the main control unit via a serial communication interface, and the positioning module is configured to provide positioning information to the main control unit; The main control unit includes at least one processing chip, which receives the image information and the positioning information, and outputs road sign information.

2. The device according to claim 1, characterized in that Also includes: A communication module is connected to the main control unit via a serial universal bus, and the communication module is configured to provide communication information to the main control unit.

3. The device according to claim 2, characterized in that Also includes: A storage module is connected to the communication module via a bus and is used to store the road sign information of the main control unit and the communication information provided by the communication module.

4. The device according to claim 1, characterized in that The positioning module includes a dual-frequency receiving positioning module. The signal receiving frequencies of the dual-frequency receiving positioning module include L1 frequency and L5 frequency. The positioning accuracy of the dual-frequency receiving positioning module is at the meter level.

5. The device according to claim 1, characterized in that Also includes: A status indicator light is connected to the main control unit, and the status indicator light triggers different lighting colors according to the status signal of the main control unit.

6. The device according to claim 1, characterized in that Also includes: A power input port, wherein the power input port is used to obtain energy for operating the road sign information generating device.

7. The device according to claim 1, characterized in that The processing chip stores a road sign information generation model, and the road sign information generation model adopts the YOLOV5 architecture.

8. The device according to claim 2, characterized in that: It also includes: a cloud service platform, which is communicatively connected to the main control unit through the communication module, and is used to receive the road sign information transmitted by the road sign information generating device.

9. The device according to claim 1, characterized in that The installation position of the road sign information generating device is located at an unobstructed position of the vehicle.

10. The device according to claim 1, characterized in that The camera elevation angle of the image acquisition module is configured as a preset angle, and the preset angle is stored in the installation calibration information table of the road sign information generating device.

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