Road traffic signal perception and identification signal system

Abstract

The utility model discloses a road traffic signal perception and identification signal system, which comprises a server, a plurality of sign acquisition units, a plurality of signal lamp acquisition units, a plurality of environment acquisition units and a data acquisition unit, the plurality of signal lamp acquisition units are respectively connected with the traffic signal lamp group, the plurality of sign acquisition units, the plurality of signal lamp acquisition units and the plurality of environment acquisition units are respectively connected with the data acquisition unit, and the data acquisition unit is connected with the server and used for receiving the sign acquisition units. Data acquired by the signal lamp acquisition unit and the environment acquisition unit are processed and then sent to the server, the server carries out fusion processing and then sends the data to the plurality of vehicle-mounted terminals, and environment information such as temperature, humidity, wind speed, wind direction and the like of a traffic environment can be further acquired through the arrangement of the environment acquisition unit. And the problems in the prior art can be well solved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent driving, and in particular to a road traffic signal perception and identification signal system. Background Art

[0002] With the acceleration of a new round of scientific and technological revolution and industrial transformation, intelligent transportation has become an important direction for the development of future transportation. After years of development, autonomous driving technology has become an indispensable part of intelligent transportation. For autonomous vehicles, the intelligence of a single vehicle mainly relies on the vehicle's own vision, millimeter-wave radar, lidar and other sensors, computing units and wire control systems for environmental perception, computing decisions and control execution. However, there are obvious limitations to the intelligence of a single vehicle. Affected by many environmental factors, it is sometimes impossible to effectively identify traffic signs, read traffic lights, and distinguish objects on the road. In addition, road traffic conditions make the expected functional safety of autonomous driving more special. Traffic congestion, dense population, reverse driving, running red lights and other complex traffic scenes and uncertain factors in some areas all bring more challenges to the expected functional safety issues. Therefore, it is very important to add roadside equipment RSU (Road Side Unit) to provide vehicles with accurate roadside information.

[0003] The roadside equipment RSU is an important component of the roadside end of vehicle-road collaboration and the key to breaking through the vehicle-road collaboration technology. The roadside equipment RSU is connected to the electronic signs at the intersection, traffic lights and servers respectively to achieve interconnection. Its main function is to collect data from traffic lights, electronic signs and other data at the intersection, and upload it to the server after processing. The server performs fusion processing and finally transmits the collected information to the autonomous driving vehicle, so that the vehicle can obtain traffic signals, realize vehicle-road interconnection, real-time interaction of traffic signals and other functions, assist the driver in driving, and ensure the safety of people and vehicles in the entire transportation field.

[0004] The above-mentioned roadside equipment RSU has the problem of single data collection in actual application; due to limited perception data, it cannot provide more information to the autonomous driving vehicle. Utility Model Content

[0005] In view of the above-mentioned technical problems existing in the existing roadside equipment RSU, the purpose of the utility model is to provide a road traffic signal perception and identification signal system. Through the setting of the environment collection unit, it can further collect environmental information such as temperature, humidity, wind speed, wind direction, etc. of the traffic environment, which can well solve the problems existing in the current technology.

[0006] In order to achieve the above-mentioned purpose, the road traffic signal perception and identification signal system provided by the utility model includes a server, and also includes a plurality of sign collection units, a plurality of signal light collection units, a plurality of environment collection units, and a data collector. The plurality of sign collection units are respectively connected to the variable lane sign for collecting the sign information of the variable lane sign. The plurality of signal light collection units are respectively connected to the traffic light group for collecting the data of the traffic light group. The plurality of environment collection units are used to collect the environmental data of the road. The plurality of sign collection units, the plurality of signal light collection units and the plurality of environment collection units are respectively connected to the data collector. The data collector is connected to the server. The data collector is used to receive the data collected by the sign collection unit, the signal light collection unit and the environment collection unit, and send the data to the server after processing. The server sends the data to a plurality of vehicle-mounted terminals after fusion processing.

[0007] Furthermore, the sign collection unit includes a sign collection module and a signal transmission module. The sign collection module is respectively connected to the control unit of the variable lane sign and the signal transmission module. The signal transmission module is connected to the data collector. The sign collection module can collect the current identification information data of the variable lane sign through the control unit and transmit it to the data collector through the signal transmission module.

[0008] Further, the signal light acquisition unit includes a green light acquisition module, a yellow light acquisition module, a red light acquisition module and a conversion module;

[0009] The signal light acquisition unit includes a green light acquisition module, a yellow light acquisition module, a red light acquisition module, a conversion module and a data transmission module;

[0010] The green light acquisition module, the yellow light acquisition module and the red light acquisition module are respectively connected to the conversion module, and the conversion module is connected to the data collector through the data transmission module. The green light acquisition module, the yellow light acquisition module and the red light acquisition module are respectively used to connect with the green light module, the yellow light module and the red light module in the traffic light group, and can respectively collect data of the green light module, the yellow light module and the red light module and form corresponding signals, and transmit them to the conversion module. After the conversion module performs data conversion, it is transmitted to the data collector through the data transmission module for signal calculation processing.

[0011] Furthermore, the conversion module adopts a photoelectric coupling module.

[0012] Furthermore, the environment acquisition unit includes a sensor group, an edge computing module and a communication module, the sensor group is connected to the edge computing module, and the edge computing module is connected to the data collector through the communication module;

[0013] The sensor group is used to collect environmental information and output the detected information to the edge computing module;

[0014] The edge computing module is used to receive and process the perception data of the sensor group, process the perception data, and send it to the data collector through the communication module.

[0015] Furthermore, the sensor group is arranged at the intersection, and includes a wind direction and speed sensor, a light sensor, a camera, a lidar, and a temperature and humidity sensor.

[0016] Furthermore, the data collector includes a control module and an output module. The control module is respectively connected to the signal transmission module of the sign acquisition unit, the data transmission module of the traffic light acquisition unit and the communication module of the environment acquisition unit. The control module is connected to the server through the output module. The control module is used to receive and process data signals from the signal transmission module, the conversion module and the communication module, and then upload them to the server through the output module.

[0017] The road traffic signal perception and identification signal system provided by the utility model can further collect environmental information such as temperature, humidity, wind speed, wind direction, etc. of the traffic environment by setting an environment collection unit. The input of this information can make the automatic driving system of the unmanned vehicle safer and more stable;

[0018] By adding a "data collector" on site, it can directly pre-process multiple groups of collection units on site and then transmit them to the remote server, which can greatly improve the reliability of the system; BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0020] Figure 1 A schematic diagram of the connection between the road traffic signal sensing and identification signal system provided by the utility model;

[0021] Figure 2 A schematic block diagram of the connection of a sign collection unit in the road traffic signal perception and sign signal system provided by the utility model;

[0022] Figure 3 A schematic block diagram of the connection of a signal light acquisition unit in the road traffic signal perception and identification signal system provided by the utility model;

[0023] Figure 4 A schematic block diagram of the connection of the environment acquisition unit in the road traffic signal perception and identification signal system provided by the utility model;

[0024] Figure 5A schematic diagram of the actual application of the road traffic signal perception and identification signal system provided by the utility model;

[0025] Figure 6 A schematic diagram of the three-dimensional structure of a data collector in the road traffic signal perception and identification signal system provided by the utility model;

[0026] Figure 7 A side cross-sectional view of a data collector in the road traffic signal perception and identification signal system provided by the utility model;

[0027] Figure 8 This is a top sectional view of a data collector in the road traffic signal perception and identification signal system provided by the utility model.

[0028] Illustration Description:

[0029] Variable lane sign 10, traffic light set 20, vehicle terminal 30;

[0030] Sign collection unit 100, signal light collection unit 200, environment collection unit 300, data collector 400, server 500;

[0031] Sign collection module 110, signal transmission module 120, green light collection module 221, yellow light collection module 222, red light collection module 223, conversion module 224, data transmission module 225, sensor group 310, edge computing module 320, communication module 330, control module 410, output module 420, shell 430, heat dissipation device 440, sunshade power generation device 450, battery 460, PCB board 470, through hole 480, waterproof air vent 490, vibration-damping foot support 510, elastic element 520. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0033] See also Figure 1 , which is a schematic diagram of the structure of the road traffic signal perception and identification signal system provided by the utility model.

[0034] According to the diagram, the road traffic signal perception and identification signal system provided by the utility model includes five components: a plurality of sign collection units 100, a plurality of signal light collection units 200, a plurality of environment collection units 300, a data collector 400, and a server 500.

[0035] Among them, a plurality of sign collection units 100 are respectively connected to the variable lane sign board 10, and are used to collect sign information of the variable lane sign board 10;

[0036] A plurality of signal light collection units 200 are respectively connected to the traffic light group 20 for collecting data of the traffic light group 20;

[0037] Several environment collection units 300 are used to collect environment data;

[0038] The above-mentioned several sign collection units 100, several signal light collection units 200 and several environment collection units 300 are respectively connected to the data collector 400, and the data collector 400 is connected to the server 500;

[0039] The data collector 400 is used to receive the data collected by the sign collection unit 100, the signal light collection unit 200 and the environment collection unit 300, and send the data to the server 500 after processing. The server 500 integrates the data and sends them to several vehicle terminals 30 respectively.

[0040] Specifically, Figure 2 The sign collection unit 100 includes a sign collection module 110 and a signal transmission module 120. The sign collection module 110 is respectively connected to the control unit of the variable lane sign 10 and the signal transmission module 120. The signal transmission module 120 is connected to the data collector 400. The sign collection module 110 can collect the current identification information data of the variable lane sign 10 through the control unit and transmit it to the data collector 400 through the signal transmission module 120.

[0041] The present solution does not limit the specific structure of the sign collection module 110 and the signal transmission module 120, which can be determined according to actual needs. For example, they can be constructed using a stable and reliable solution in the art, thereby ensuring the operational stability of the entire sign collection unit 100.

[0042] As a further example, in this example, the mark acquisition unit 100 can be specifically composed of a data acquisition card, a wireless transmission communication module and a processor. Here, the data acquisition card, the wireless transmission communication module and the processor are integrated on a corresponding circuit board. At the same time, the processor is connected to the data acquisition card and the wireless transmission communication module. The data acquisition card constitutes the mark acquisition module 110.

[0043] It should be noted here that the composition of the data acquisition card, wireless transmission communication module, processor and circuit board can be determined according to actual needs, as long as they can meet the above functions.

[0044] In actual application, as an example, by connecting with the control unit of the variable lane sign 10, when the variable lane sign 10 is a straight lane, the sign acquisition module 110 can form a straight lane signal and send the signal to the data collector 400 through the signal transmission module 120; when the variable lane sign 10 changes from a straight lane to a left turn lane, the sign acquisition module 110 forms a corresponding left turn lane signal and sends it to the data collector 400 through the signal transmission module 120; the data collector 400 processes the signal and sends it to the server 500; the server 500 performs fusion processing and sends the signal to the vehicle terminal 30, thereby realizing accurate and rapid perception of traffic signs by the vehicle.

[0045] like Figure 3 The signal light acquisition unit 200 includes a green light acquisition module 221, a yellow light acquisition module 222, a red light acquisition module 223, a conversion module 224 and a data transmission module 225;

[0046] The green light acquisition module 221, the yellow light acquisition module 222 and the red light acquisition module 223 are respectively connected to the conversion module 224, and the conversion module 224 is connected to the data collector 400 through the data transmission module 225. The above-mentioned green light acquisition module 221, the yellow light acquisition module 222 and the red light acquisition module 223 are respectively used to connect with the green light module, the yellow light module and the red light module in the traffic light group 20, and can respectively collect the light color, duration and remaining duration data of the green light module, the yellow light module and the red light module and form corresponding signals, and transmit them to the conversion module 224. After the conversion module 224 performs data conversion, it is transmitted to the data collector 400 through the data transmission module 225 for signal calculation processing.

[0047] In this solution, the above-mentioned conversion module 224 adopts a photoelectric coupling module, which can convert the electrical signals collected by the green light collection module 221, the yellow light collection module 222 and the red light collection module 223 into optical signals and transmit them to the data collector 400 through the data transmission module 225. Optical communication has the advantages of fast transmission speed, large bandwidth, anti-interference, and safety. It can improve the reliability of signal transmission to further improve the accuracy of the entire system. It is a conventional technology in this field and will not be elaborated here.

[0048] This solution does not limit the specific structure of the green light acquisition module 221, the yellow light acquisition module 222, the red light acquisition module 223, and the conversion module 224, which can be determined according to actual needs. For example, it can be constructed using a stable and reliable solution currently available in the art, thereby ensuring the operational stability of the entire signal light acquisition unit 200.

[0049] As a further example, in this example, the traffic light acquisition unit 200 can be specifically composed of three sensor data collectors, a wireless transmission communication module, a photoelectric coupler and a processor. The sensor data collector, wireless transmission communication module, photoelectric coupler and processor are integrated on the corresponding circuit board. At the same time, the processor is respectively connected to the photoelectric coupler and the wireless transmission communication module, and the three sensor data collectors are respectively connected to the photoelectric coupler.

[0050] It should be noted here that the composition of the sensor data collector, wireless transmission communication module, optocoupler, processor and circuit board can be determined according to actual needs, as long as the above functions can be met.

[0051] In actual application, the data of the green light module, yellow light module and red light module in the traffic light group 20 are respectively collected by the green light collection module 221, the yellow light collection module 222 and the red light collection module 223 and sent to the conversion module 224. The conversion module 224 performs conversion processing and sends it to the data collector 400. The control module performs signal calculation processing and finally uploads it to the server 500. The server 500 performs fusion processing and sends it to the vehicle-mounted terminal 30 of the section.

[0052] like Figure 4 , the environment acquisition unit 300 includes a sensor group 310, an edge computing module 320 and a communication module 330;

[0053] The sensor group 310 is connected to the edge computing module 320, and the edge computing module 320 is connected to the data collector 400 through the communication module 330;

[0054] The sensor group 310 is used to collect road environment information and output the detected information to the edge computing module 320.

[0055] The edge computing module 320 is composed of corresponding edge computing devices, which are used to receive and process the perception data of the sensor group 310, process the perception data, and send it to the data collector 400 through the communication module 330. This is a conventional technology in the field and will not be elaborated here.

[0056] The communication module 330 may be a wireless communication module or a wired communication module;

[0057] The sensor group 310 is arranged at the intersection, preferably at the top of the traffic light group 20 or the variable lane sign 10. The arrangement of the sensor group 310 enables the system to collect other information besides the traffic lights and traffic signs. For example, the sensor group 310 includes a wind direction and speed sensor, a light sensor, a camera, a lidar, and a temperature and humidity sensor. In actual use, the wind direction and speed sensor can be used to detect the wind speed and direction of the traffic environment. Inputting the wind speed and direction information into the vehicle-mounted terminal 30 can correct the driving parameters to avoid the influence of wind speed and wind direction on the automatic driving. The light sensor can be used to detect the wind speed and direction of the traffic environment. To detect the light intensity of the traffic environment; obstacles and other information in the traffic environment can be detected through cameras and lidar; the temperature and humidity of the traffic environment can also be detected through temperature and humidity sensors. The above-mentioned perception data are finally sent to the edge computing module 320 for processing, and after processing, they are sent to the data collector 400 through the communication module 330. The data collector 400 sends the data to the server 500 after processing. The server 500 transmits the data to several vehicle-mounted terminals 30 after fusion processing. Through the setting of the sensor group 310, the vehicle can perceive the scene information and meteorological data, which is a conventional technology in the field and will not be elaborated here.

[0058] The data collector 400 includes a control module 410 and an output module 420. The control module 410 is respectively connected to the signal transmission module 120 of the sign acquisition unit 100, the data transmission module 225 of the traffic light acquisition unit 200 and the communication module 330 of the environment acquisition unit 300. The control module 410 is connected to the server 500 through the output module 420. The control module 410 is used to receive and process data signals from the signal transmission module 120, the data transmission module 225 and the communication module 330, and then upload them to the server 500 through the output module 420.

[0059] The present solution does not limit the specific structure of the data collector 400, which can be determined according to actual needs. For example, it can be constructed by adopting a stable and reliable solution in the art, thereby ensuring the operational stability of the entire data collector 400.

[0060] As a further example, Figure 6 , Figure 7 as well as Figure 8 In this example, the data collector 400 may be specifically composed of a housing 430, a heat dissipation device 440, a sunshade power generation device 450, a battery 460, a PCB board 470, and a control module 410 and an output module 420 integrated on the PCB board 470;

[0061] The battery 460 and the PCB board 470 are both arranged at the bottom of the inner cavity of the shell 430. The control module 410 is connected to the output module 420. The control module 410 is used to receive the collected signals of the sign collection unit 100, the signal light collection unit 200 and the environment collection unit 300, and upload the collected signals to the server 500 through the output module 420 after performing signal calculation processing. The battery 460 is electrically connected to the PCB board 470. The heat dissipation device 440 is arranged at the top of the inner cavity of the shell 430 and can heat the PCB board 470. 0 blowing and are respectively connected to the battery 460 and the control module 410, the PCB board 470 is provided with a plurality of through holes 480, and the bottom of the shell 430 is provided with a plurality of waterproof vent holes 490 corresponding to the through holes 480. Through the control of the control module 410, the heat dissipation device 440 cooperates with the through holes 480 and the waterproof vent holes 490 to dissipate heat inside the shell 430, and the sunshade power generation device 450 is arranged on the top of the shell 430 and connected to the battery 460, for shading and supplying power to the battery 460.

[0062] It should be explained here that the composition of the shell 430, the heat dissipation device 440, the sunshade power generation device 450, the battery 460, the PCB board 470, the control module 410 integrated on the PCB board 470, and the output module 420 can be determined according to actual needs, as long as they can meet the above functions.

[0063] As an example, in this example, the control module 410 preferably adopts a single-chip microcomputer, and the output module 420 preferably adopts a 5G transmission module.

[0064] The above-mentioned data collector 400 can form a heat dissipation channel through the arrangement of the heat dissipation device 440, the through hole 480 and the waterproof vent hole 490. When the heat dissipation device 440 located at the top starts to work, its blades will rotate rapidly, which will generate an airflow. This airflow then contacts the surface of the PCB board 470 and the control module 410 and the output module 420 integrated on the PCB board 470, and conducts the heat on the surface of the above-mentioned components to the outside through the through hole 480 and the waterproof vent hole 490 in turn, which can ensure that the device or electronic components maintain an appropriate temperature, and can avoid the situation where the data collector 500 cannot work due to excessive temperature, and the life span is reduced. The heat dissipation device 440 can greatly improve the reliability and service life of the data collector 400;

[0065] At the same time, the sunshade power generation device 450 serves as a power generation panel and also as a sunshade, which can supply power to the battery 460, and the battery 460 in turn provides working power for all components of the terminal. In this way, the sunshade provided by the sunshade power generation device 450 can prevent the temperature of the inner cavity of the shell 430 from being too high, and the power generation by the sunshade power generation device 450 can reduce energy consumption and reduce costs.

[0066] In order to further improve the reliability of the data collector 400, a number of vibration-damping feet 510 are provided at the bottom of the shell 430 and a number of elastic elements 520 are provided between the PCB board 470 and the shell 430. One end of the elastic element 520 is connected to the bottom of the shell 430, and the other end is connected to the bottom of the PCB board 470. When the shell 430 is subjected to external force, the vibration-damping feet 510 and the elastic elements 520 can generate damping and absorb the external force to a certain extent, so as to reduce the impact and vibration of the external force on the PCB board 470 and the modules thereon, avoid the risk of damage to the PCB board 470 due to external force, and greatly improve the reliability.

[0067] like Figure 5 , This figure is a schematic diagram of the actual application of this solution, which is only used as an example and does not constitute a limitation on this case. In this solution, a sign collection unit 100 is preferably provided on the top of each variable lane sign 10, and is connected to the control unit of the variable lane sign 10, and a signal light collection unit 200 and an environment collection unit 300 are provided on the top of each traffic light group 20, and the signal light collection unit 200 is connected to the traffic light group 20;

[0068] The sign collection unit 100, the signal light collection unit 200 and the environment collection unit 300 can respectively collect the sign data of the variable lane sign 10, the signal data of the traffic light group 20 and the road environment and traffic condition data in real time, and send them to the data collector 400 for processing. After the data collector 400 processes, it is sent to the server 500 for fusion processing. Finally, the server 500 transmits the perception data to the vehicle terminal 30 in the vehicle being driven;

[0069] The road traffic signal perception and identification signal system provided by the utility model can further collect environmental information such as temperature, humidity, wind speed, wind direction, etc. of the traffic environment by setting the environment collection unit 300. The input of such information can make the automatic driving system of the unmanned vehicle safer and more stable.

[0070] At the same time, by adding a data collector 400 on site, it can directly pre-process the data collected by the sign collection unit 100, the traffic light collection unit 200 and the environment collection unit 300 on site, and then transmit them to the remote server 500, which can greatly improve the reliability of the system.

[0071] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A road traffic signal perception and identification signal system, comprising a server, characterized in that: It also includes several sign collection units, several signal light collection units, several environment collection units, and a data collector. The several sign collection units are respectively connected to the variable lane sign for collecting sign information of the variable lane sign. The several signal light collection units are respectively connected to the traffic signal light group for collecting data of the traffic signal light group. The several environment collection units are used to collect environmental data of the road. The several sign collection units, several signal light collection units and several environment collection units are respectively connected to the data collector. The data collector is connected to the server. The data collector is used to receive the data collected by the sign collection unit, the signal light collection unit and the environment collection unit, and send the data to the server after processing. The server sends the data to several vehicle-mounted terminals after fusion processing.

2. The road traffic signal perception and identification signal system according to claim 1, characterized in that: The sign collection unit includes a sign collection module and a signal transmission module. The sign collection module is respectively connected to the control unit of the variable lane sign and the signal transmission module. The signal transmission module is connected to the data collector. The sign collection module can collect the current sign information data of the variable lane sign through the control unit and transmit it to the data collector through the signal transmission module.

3. The road traffic signal perception and identification signal system according to claim 1, characterized in that: The signal light acquisition unit includes a green light acquisition module, a yellow light acquisition module, a red light acquisition module, a conversion module and a data transmission module; The green light acquisition module, the yellow light acquisition module and the red light acquisition module are respectively connected to the conversion module, and the conversion module is connected to the data collector through the data transmission module. The green light acquisition module, the yellow light acquisition module and the red light acquisition module are respectively used to connect with the green light module, the yellow light module and the red light module in the traffic light group, and can respectively collect data of the green light module, the yellow light module and the red light module and form corresponding signals, and transmit them to the conversion module. After the conversion module performs data conversion, it is transmitted to the data collector through the data transmission module for signal calculation processing.

4. The road traffic signal perception and identification signal system according to claim 3, characterized in that: The conversion module adopts a photoelectric coupling module.

5. The road traffic signal perception and identification signal system according to claim 1, characterized in that: The environment acquisition unit includes a sensor group, an edge computing module and a communication module, the sensor group is connected to the edge computing module, and the edge computing module is connected to the data collector through the communication module; The sensor group is used to collect environmental information and output the detected information to the edge computing module; The edge computing module is used to receive and process the perception data of the sensor group, process the perception data, and send it to the data collector through the communication module.

6. The road traffic signal perception and identification signal system according to claim 5, characterized in that: The sensor group is arranged at the intersection, and includes a wind direction and speed sensor, a light sensor, a camera, a laser radar, and a temperature and humidity sensor.

7. The road traffic signal perception and identification signal system according to claim 1, characterized in that: The data collector includes a control module and an output module. The control module is respectively connected to the signal transmission module of the sign acquisition unit, the data transmission module of the signal light acquisition unit and the communication module of the environment acquisition unit. The control module is connected to the server through the output module. The control module is used to receive and process data signals from the signal transmission module, the conversion module and the communication module, and then upload them to the server through the output module.

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