CN111785061A - Traffic signal method and system based on two-dimensional code - Google Patents
Traffic signal method and system based on two-dimensional code Download PDFInfo
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- CN111785061A CN111785061A CN202010671570.9A CN202010671570A CN111785061A CN 111785061 A CN111785061 A CN 111785061A CN 202010671570 A CN202010671570 A CN 202010671570A CN 111785061 A CN111785061 A CN 111785061A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096725—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information generates an automatic action on the vehicle control
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0141—Measuring and analyzing of parameters relative to traffic conditions for specific applications for traffic information dissemination
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Abstract
The invention provides a traffic signal method and system based on two-dimensional codes, and relates to the technical field of traffic signals. According to the traffic signal method based on the two-dimension code, the information server collects lane-level traffic information, the information server combines various lane-level traffic information to generate two-dimension code information, the two-dimension code information is sent to the two-dimension code display device in a regional mode, the two-dimension code display device displays the two-dimension code, and the terminal device scans the two-dimension code to recognize the lane-level traffic information. In the invention, the vehicle terminal does not need to judge the correlation identification of the traffic signal lamp and the lane, and acquires real-time traffic information through the code scanning two-dimensional code, and the information is lane-level traffic information of different regions, so that the vehicle can drive according to the latest lane-level traffic control measures, the release of the traffic information is separated from the traditional traffic signal equipment carrier in use, the flexible traffic control strategy is favorably realized, and the purpose of actively guiding and controlling the traffic flow of the lane is achieved.
Description
Technical Field
The invention relates to the technical field of traffic signals, in particular to a traffic signal method and system based on two-dimensional codes.
Background
When the automatic driving vehicle runs, the motor vehicle must timely acquire various conditions of lanes so as to select different lanes for passing. The problem of lane congestion becomes very serious during rush hours and off-hours or when there is no dedicated lane. When a dangerous condition occurs, emergency vehicles such as ambulances, fire trucks, emergency rescue vehicles and the like need to make way for rapid passing, and the life and property safety of people can be guaranteed to the maximum extent. According to the existing traffic light signal system and the traffic information indicator device, an emergency vehicle cannot acquire a dynamic special lane route. It is imperative to employ new traffic information devices to actively guide and control lane traffic.
The publication CN109147354A discloses an intelligent traffic light system based on V2X and ZigBee communication and a control method thereof, and discloses an invention request protection intelligent traffic light system based on V2X and ZigBee communication and a control method thereof, which are used for traffic guidance at intersections. The system is based on a Road Side Unit (RSU), each group of traffic signal lamps, an edge calculation (MEC) server and a universal forced remote controller, the MEC realizes a green wave band traffic guidance strategy according to historical lane-level vehicle statistical data in a database of the MEC, and the RSU performs double-level dynamic timing and automatic control on each group of traffic signal lamps at the intersection according to real-time distribution data of vehicles in each lane of the intersection; when necessary, a ZigBee network ID of a certain intersection is input into the universal forced remote controller to request the system from the RSU of the intersection, and after the RSU verifies the equipment on line to the MEC, the equipment is allowed to be added into the ZigBee network of the system, so that the equipment can be forced to control the system. The invention simplifies the wiring mode of the traditional traffic signal lamp and improves the rationality of the timing scheme and the safety of forced control. The method is also a passive lane signal device, and cannot realize active guidance in advance and control of lane flow.
On the other hand, the automatic driving vehicle runs according to the planned lane-level path, when the automatic driving vehicle passes through the intersection, the traffic signal directly governing the right of the current lane needs to be found out from the scanned traffic signals, and the decision of whether to continue running is made according to the real-time traffic signal. At present, due to the wide variety of complex intersection situations, the association of traffic lights with lanes is determined with great difficulty, which results in a too high error rate when associating traffic lights with lanes. The publication CN107992829A provides a method and a device for extracting lane-level control relations of traffic lights, which automatically extract the control relations between traffic lights and lanes according to the characteristics of the traffic lights, such as orientation, position, and type, in combination with the steering regulations of left turn, right turn, turning around, etc. of each lane entering the intersection, thereby effectively improving the reliability of decision making and prediction. Obviously, this will increase the computational effort of the autonomous vehicle.
The publication CN110992723A discloses an unmanned traffic navigation signal device and its management system, which is an unmanned device and its management system for realizing synchronous tangible and intangible tracking navigation of an unmanned moving body or a moving walking robot in two modes by a tangible ground one-dimensional code or two-dimensional code and a virtual intangible digital electronic path map navigation mode associated with the tangible ground one-dimensional code or two-dimensional code. The method comprises the steps that the tangible ground one-dimensional code or two-dimensional code path information is that an unmanned control system edits intangible electronic path map information into a one-dimensional code or a two-dimensional code, and the one-dimensional code or the two-dimensional code is printed on the road surface of an actual path at a certain interval and is read by a camera or a code scanner carried by an unmanned moving body or a moving walking robot in tracing operation; an intangible virtual digital electronic path map is a collection of electronic path information map data with global electronic position digital information. Therefore, the tracking running mode is executed by indicating the ground one-dimensional code or two-dimensional code icon of the unmanned moving body or the moving walking robot, which is in one-to-one relation with the intangible electronic path map, to track through the intangible electronic path map.
CN110675641A road traffic signal control system of car networking based on LTE-V2X the invention provides a road traffic signal control system of car networking based on LTE-V2X, includes: the system comprises a road traffic signal machine, a road traffic center signal control platform, a vehicle-mounted OBU, a traffic state detector and a V2X vehicle networking service platform; the vehicle-mounted OBU is arranged on the intelligent networked automobile; the vehicle-mounted OBU, the V2X vehicle networking service platform and the road traffic signal machine are communicated through a wireless mobile communication network and form an LTE-V2X network; the traffic state detector is connected with a road traffic signal machine; the road traffic center signal control platform is connected with a road traffic signal machine; the road traffic signal machine is connected with the signal lamp. The invention can provide the social vehicles with the event information of real-time traffic signal state, real-time road conditions at the intersection, peripheral traffic control, traffic accidents and the like, has obvious beneficial effect and is suitable for application and popularization. However, the signal marking system is area-oriented, cannot realize the one-to-one corresponding correlation identification of the traffic signal lamps and the lanes, cannot dynamically count the number of automobiles in each lane in a specific area, and cannot realize the active guidance and control of lane flow in advance.
The invention discloses an automatic driving vehicle-road cooperative signboard, an automatic driving system and a control method, which belong to CN109537488A, and discloses the automatic driving vehicle-road cooperative signboard, the vehicle-road cooperative system and the control method, wherein the signboard comprises a processor, an identification code, a memory and a communication module, the identification code is an electronic identification code dynamically updated in real time, and the electronic identification code is arranged near the position of a traffic indication and/or a traffic sign on the roadside and/or above the road and faces the direction of a vehicle; the communication module carries out data interactive communication with the traffic management center and the traffic information acquisition device, real-time communication data are stored in the memory, and the processor calls the information in the memory to generate the electronic identification code and update and display the electronic identification code in real time. The signboard that this patent put forward is installed in cascade, makes the vehicle can drive according to signboard information automation. The method is not influenced by illumination, rain, snow, curves and the like, and can stably and reliably identify lane line information. Road information is transmitted to vehicles by mounting bar codes, two-dimensional codes or other marks on two sides or above the road. However, the signboard can only be used as a necessary supplement of an electronic map, cannot realize the problem of one-to-one correspondence identification of traffic signal lamps and lanes, cannot dynamically count the number of automobiles on each lane in a specific area, and cannot realize active guidance and lane flow control in advance. There is a strong need for a lane-independent traffic signaling device that can be quickly identified by an autonomous vehicle with relevant lane control information.
Disclosure of Invention
In order to overcome the defects that in the prior art, the one-to-one correspondence identification between traffic signal lamps and lanes is realized, the number of automobiles in each lane in a specific area cannot be dynamically counted, and active guidance and lane flow control in advance cannot be realized, the invention provides a traffic signal method and a traffic signal system based on two-dimensional codes, which are used for solving the problems in the background art.
In order to achieve the purpose, the invention is realized by the following technical scheme: an information server collects phase timing information of a road traffic signal machine and lane level traffic information of an intersection, and comprises the following steps:
s101, an information server collects lane-level traffic information, wherein the lane-level traffic information comprises traffic of each lane, time period control information and traffic vehicle category control information.
S102, the information server combines various lane-level traffic information to generate two-dimensional code information, and sends the two-dimensional code information to two-dimensional code display equipment in different areas.
And S103, receiving the data of the information server and displaying the two-dimensional code by the two-dimensional code display device.
And S104, the terminal equipment scans the two-dimensional code to identify the lane-level traffic information.
As a further scheme of the invention: the lane-level traffic information further includes: and accessing the server website information.
As a further scheme of the invention: the step of collecting the lane-level traffic information by the information server further comprises the following steps: the information server collects terminal information of each lane of the access server. Correspondingly, the step of recognizing the lane-level traffic information by the terminal equipment scanning the two-dimensional code further comprises the following steps: and the terminal equipment submits the self state information to the access server according to the address in the two-dimensional code.
A traffic signal system based on two-dimensional codes, comprising: the system comprises an information server, two-dimensional code display equipment and terminal equipment. The information server is connected with the two-dimensional code display device through a network. The two-dimensional code display device is connected with the terminal device in a code scanning mode.
The information server is used for collecting lane-level traffic information, generating two-dimension code information and sending the two-dimension code information to the two-dimension code display equipment.
And the two-dimension code display equipment is used for receiving the two-dimension code information of the information server and displaying the two-dimension code information.
The terminal equipment is used for scanning the two-dimensional code displayed in the two-dimensional code display equipment and has the function of identifying the information of the two-dimensional code.
As a further scheme of the invention: the traffic signal system based on the two-dimensional code further comprises: a server is accessed. The access server is used for collecting the state information of each lane terminal device and sending the state information to the information server; the access server is connected with the information server through a network; the access server is connected with the terminal equipment through a wireless network; the access server and the information server may be co-located.
As a further scheme of the invention: the information server includes: the road traffic signal machine interface module is used for being responsible for data communication with a road traffic signal machine; the rule definition module is used for generating lane-level traffic information according to traffic information rules and sending the lane-level traffic signal information of the server to other information servers; the access server interface module is used for being responsible for data communication with the access server; the traffic information two-dimensional code generating module is used for generating and sending two-dimensional code information according to various lane-level traffic information codes; and the two-dimension code display equipment interface module is used for being in charge of data communication with the two-dimension code display equipment.
As a further scheme of the invention: the two-dimensional code display device includes: the two-dimensional code display is used for communicating with the information server, controlling the host computer and displaying two-dimensional code functions; and the distribution box is used for providing a power supply for the two-dimensional code display. The two-dimensional code display is electrically connected with the distribution box, and the two-dimensional code display is connected with the information server through a network.
As a further alternative of the invention: the two-dimensional code display device includes: the road traffic signal machine is used for communicating with the information server, controlling the host, controlling the traffic signal, controlling the two-dimensional code display screen and having the power supply function; and the two-dimensional code display screen is used for displaying the two-dimensional code. The road traffic signal machine is electrically connected with the two-dimensional code display screen, and the road traffic signal machine is connected with the information server through a network.
As a further scheme of the invention: the two-dimensional code display includes: the two-dimensional code display communication module is used for being in charge of data communication with the information server and is a combination of at least one of 4G, 5G, Ethernet, optical fiber Ethernet, RS485 and RS 232; the two-dimensional code display host module is used for power conversion of the distribution box and conversion of two-dimensional code information received from the two-dimensional code display communication module into photoelectric signals of the two-dimensional code display screen; and the two-dimensional code display screen is used for realizing the function of displaying the two-dimensional code.
As a further scheme of the invention: the road traffic signal includes: the road traffic signal machine host module is used for taking charge of power supply, control and communication functions; the two-dimensional code display screen control circuit module is used for controlling the two-dimensional code display screen; the signal lamp control circuit module is used for controlling a traffic signal lamp; and the road traffic signal machine communication module is used for being in charge of data communication with the information server.
The invention provides a traffic signal method and system based on two-dimensional codes. The method has the following beneficial effects:
in the invention: when the traffic signal system based on the two-dimensional code is used, the vehicle terminal does not need to judge the association identification of the traffic signal lamp and the lane, real-time traffic information is obtained by scanning the two-dimensional code, and the information is lane-level traffic information of different regions, so that the vehicle can run according to the latest lane-level traffic control measures, the release of the traffic information is separated from the traditional traffic signal equipment carrier in use, the flexible traffic control strategy is favorably realized, and the purpose of actively guiding and controlling the lane flow is achieved.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a block diagram of the system of the present invention;
FIG. 3 is a block diagram of an information server system of the present invention;
FIG. 4 is a system block diagram of a two-dimensional code display device according to the present invention;
FIG. 5 is a system block diagram of a two-dimensional code display device according to the present invention;
FIG. 6 is a block diagram of a two-dimensional code display system according to the present invention;
fig. 7 is a block diagram of a road traffic signal system according to the present invention.
Detailed Description
The invention will be further illustrated with reference to the following examples and drawings:
example one
Referring to fig. 1, an information server collects phase timing information of a road traffic signal and lane-level traffic information of an intersection based on a two-dimensional code traffic signal method, comprising the following steps:
step one S101, an information server collects lane-level traffic information, wherein the lane-level traffic information comprises traffic of each lane, time period control information and traffic vehicle category control information.
In order to enable the vehicle terminal to rapidly acquire the traffic information, the traffic information is composed according to a certain rule.
Specifically, the traffic information contains traffic for each lane, time zone regulation information, traffic vehicle category control, and the like, and the traffic information rules are defined and issued by a government traffic control department.
Specifically, the traffic information further includes traffic signal phase information transmitted from the road traffic signal.
Specifically, the traffic information also includes lane vehicle or terminal state information sent by the access server.
Typical traffic information is exemplified as follows:
lane 1, right-turn lane, all vehicles passing, green light, 10 automatic lanes and 2 non lanes;
lane 2, right-turn lane, all cars are current, the red light, 25 are automatic, 2 are not, 8: 00-21: 00 straight lanes, all vehicles pass through;
lane 3, straight lane, all vehicles pass, green light, 20 automatic, 2 non, 9: 30-: 9:50 of rescue lane, the rescue vehicle passes through;
lane 4, left turn lane, all vehicles passing, red light, 18 cars automatic, 2 cars non.
And step two S102, the information server combines various lane-level traffic information to generate two-dimensional code information, and sends the two-dimensional code information to two-dimensional code display equipment in different areas.
And the signal server generates the lane-level traffic information code in the step one into a two-dimensional code, the resolution ratio is 600 x 600, and the two-dimensional code is sent to two-dimensional code display equipment.
Specifically, the signal server dynamically divides the two-dimensional code display equipment into regional groups according to the installation position and the traffic flow, and the two-dimensional code display equipment in the same regional group receives the same two-dimensional code information, so that the signal server realizes active guidance and control of the traffic flow in advance.
Step three S103, the two-dimensional code display device receives the information server data and displays the two-dimensional code.
The two-dimensional code display equipment can be a two-dimensional code display and a distribution box, and also can be a road traffic signal machine and a two-dimensional code display screen.
Specifically, the two-dimensional code display communication module receives the two-dimensional code information from the signal server and displays the two-dimensional code information through the display screen of the two-dimensional code display.
Optionally, the road traffic signal converts the two-dimensional code information received from the signal server into a photoelectric signal of the two-dimensional code display screen, and the two-dimensional code display screen displays the two-dimensional code.
Specifically, the two-dimensional code display screen at least has a resolution of 600 × 600.
The two-dimensional code display screen can be installed on a traffic light signal rod at a crossing and also can be installed on a lane sign signal rod of a road.
And step S104, the terminal equipment scans the two-dimensional code to identify the traffic information at the lane level.
The terminal equipment comprises a vehicle terminal and a personal code scanning terminal. The terminal equipment realizes scanning of the two-dimensional code displayed in the two-dimensional code display screen, information of the two-dimensional code is identified, the information is further sent to the vehicle processor for proper lane selection according to a driving strategy after the information is identified by the vehicle terminal, and the personal code scanning terminal scans the code identification information by the personal code scanning terminal and knows real-time traffic control information.
Optionally, the terminal device feeds back a state of the terminal device to the access server according to the address in the acquired traffic information. The vehicle terminal reports state information such as lane position, running speed, acceleration, GPS and the like; and the personal code scanning terminal reports the state information such as the vehicle lane position, the driving speed, the terminal GPS and the like through the APP.
Further optionally, the lane-level traffic information in the first step S101 to the fourth step S104 further includes: accessing server website information; correspondingly, the step of collecting the lane-level traffic information by the S101 information server further includes: the information server collects terminal information of each lane of the access server; correspondingly, the step of S104, the step of recognizing the traffic information at the lane level by the terminal equipment scanning the two-dimensional code further comprises the following steps: and the terminal equipment submits the self state information to the access server according to the address in the two-dimensional code.
Example two
Referring to fig. 2, a traffic signal system based on a two-dimensional code includes: the system comprises an information server 202, a two-dimensional code display device 203 and a terminal device 204. The information server 202 and the two-dimensional code display device 203 are connected through a network. The two-dimensional code display device 203 and the terminal device 204 are connected in a code scanning manner.
The information server 202 is configured to collect lane-level traffic information, generate two-dimensional code information, and send the two-dimensional code information to a two-dimensional code display device.
The two-dimension code display device 203 is configured to receive the two-dimension code information of the information server and display the two-dimension code information.
The terminal device 204 is configured to scan the two-dimensional code displayed in the two-dimensional code display, and has a function of identifying information of the two-dimensional code.
As a further alternative of the present invention: the traffic signal system based on the two-dimensional code further comprises: the server 201 is accessed. The access server 201 is used for collecting the state information of each lane terminal device and sending the state information to the information server 202; the access server 201 is connected with the information server 202 through a network; the access server 201 is connected with the terminal device 204 through a wireless network; the access server 201 and the information server 202 may be co-located.
Specifically, referring to fig. 3, the information server 202 includes: a road traffic signal interface module 301 for taking charge of data communication with a road traffic signal; the rule definition module 302 is configured to generate lane-level traffic information according to a traffic information rule, and send lane-level traffic signal information of the server to the other information servers 202; an access server interface module 303 for taking charge of data communication with the access server 201; the traffic information two-dimensional code generating module 304 is used for generating two-dimensional code information according to various lane-level traffic information codes; and the two-dimensional code display device interface module 305 is used for being responsible for data communication with the two-dimensional code display device 203.
Specifically, referring to fig. 4, the two-dimensional code display device 203 includes: the two-dimensional code display 401 is used for communicating with the information server 202, controlling the host computer and displaying two-dimensional code functions; and the distribution box 402 is used for supplying power to the two-dimensional code display 401. The two-dimensional code display 401 is electrically connected with the distribution box 402, and the two-dimensional code display 401 is connected with the information server 202 through a network.
Alternatively, referring to fig. 5, the two-dimensional code display device 203 includes: the road traffic signal machine 501 is used for communicating with the information server 202, controlling a host computer, controlling traffic signals, controlling the two-dimensional code display screen 502 and realizing power supply functions; and the two-dimensional code display screen 502 is used for displaying a two-dimensional code. The road traffic signal 501 is electrically connected with the two-dimensional code display screen 502, and the road traffic signal 501 is connected with the information server 202 through a network.
Specifically, referring to fig. 6, the two-dimensional code display 401 includes: the two-dimensional code display communication module 601 is used for being responsible for data communication with the information server 202 and is a combination of at least one of 4G, 5G, ethernet, fiber-optic ethernet, RS485 and RS 232; the two-dimensional code display host module 602 is used for converting the power supply of the distribution box 402 and converting the two-dimensional code information received from the two-dimensional code display communication module 601 into a photoelectric signal of the two-dimensional code display screen 603; and the two-dimensional code display screen 603 is used for realizing the function of displaying the two-dimensional code.
Specifically, referring to fig. 7, the road traffic signal 501 includes: a road traffic signal machine communication module 701 for taking charge of data communication with the information server; a road traffic signal host module 702, which is responsible for power supply, control and communication functions; the signal lamp control circuit module 703 is used for controlling a traffic signal lamp; and the two-dimensional code display screen control circuit module 704 is used for controlling the two-dimensional code display screen 502.
In the invention, when the traffic signal system based on the two-dimensional code is used, the vehicle terminal does not need to judge the correlation identification of the traffic signal lamp and the lane, and real-time traffic information is acquired by scanning the two-dimensional code, and the information is lane-level traffic information of different regions, so that the vehicle can drive according to the latest lane-level traffic control measures, the release of the traffic information is separated from the traditional traffic signal equipment carrier in use, the flexible traffic control strategy is favorably realized, and the purposes of actively guiding and controlling the lane flow are achieved.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept of the present invention, which falls into the protection scope of the present invention.
Claims (10)
1. An information server collects phase timing information of a road traffic signal machine and lane level traffic information of an intersection, and is characterized by comprising the following steps:
s101, an information server collects lane-level traffic information, wherein the lane-level traffic information comprises traffic of each lane, time period control information and traffic vehicle category control information;
s102, the information server combines various lane-level traffic information to generate two-dimensional code information and sends the two-dimensional code information to two-dimensional code display equipment in different areas;
s103, receiving the data of the information server and displaying the two-dimensional code by the two-dimensional code display equipment;
and S104, the terminal equipment scans the two-dimensional code to identify the lane-level traffic information.
2. The traffic signal method based on the two-dimensional code as claimed in claim 1, wherein: the lane-level traffic information further includes: and accessing the server website information.
3. The traffic signal method based on the two-dimensional code as claimed in claim 2, wherein: the step of collecting the lane-level traffic information by the information server further comprises the following steps: s101, an information server collects terminal information of each lane of an access server; correspondingly, the step of S104, the step of recognizing the traffic information at the lane level by the terminal equipment scanning the two-dimensional code further comprises the following steps: and the terminal equipment submits the self state information to the access server according to the address in the two-dimensional code.
4. A traffic signal system based on two-dimensional code, comprising: the system comprises an information server, two-dimensional code display equipment and terminal equipment; the information server is connected with the two-dimensional code display equipment through a network; the two-dimensional code display equipment is connected with the terminal equipment in a code scanning manner;
the information server is used for collecting lane-level traffic information, generating two-dimension code information and sending the two-dimension code information to the two-dimension code display equipment;
the two-dimension code display equipment is used for receiving the two-dimension code information of the information server and displaying the two-dimension code information;
the terminal equipment is used for scanning the two-dimensional code displayed in the two-dimensional code display equipment and has the function of identifying the information of the two-dimensional code.
5. The traffic signal system based on the two-dimensional code as claimed in claim 4, wherein: the traffic signal system based on the two-dimensional code further comprises: accessing a server; the access server is used for collecting the state information of each lane terminal device and sending the state information to the information server; the access server is connected with the information server through a network; the access server is connected with the terminal equipment through a wireless network; the access server and the information server may be co-located.
6. The traffic signal system based on the two-dimensional code as claimed in claims 4 and 5, wherein: the information server includes:
the road traffic signal machine interface module is used for being responsible for data communication with a road traffic signal machine;
the rule definition module is used for generating lane-level traffic information according to traffic information rules and sending the lane-level traffic signal information of the server to other information servers;
the access server interface module is used for being responsible for data communication with the access server;
the traffic information two-dimensional code generating module is used for generating and sending two-dimensional code information according to various lane-level traffic information codes;
and the two-dimension code display equipment interface module is used for being in charge of data communication with the two-dimension code display equipment.
7. The traffic signal system based on the two-dimensional code of claim 6, wherein: the two-dimensional code display device includes:
the two-dimensional code display is used for communicating with the information server, controlling the host computer and displaying two-dimensional code functions;
the distribution box is used for providing power supply for the two-dimensional code display;
the two-dimensional code display is electrically connected with the distribution box, and the two-dimensional code display is connected with the information server through a network.
8. The traffic signal system based on the two-dimensional code of claim 6, wherein: the two-dimensional code display device includes:
the road traffic signal machine is used for communicating with the information server, controlling the host, controlling the traffic signal, controlling the two-dimensional code display screen and having the power supply function;
the two-dimensional code display screen is used for displaying a two-dimensional code;
the road traffic signal machine is electrically connected with the two-dimensional code display screen, and the road traffic signal machine is connected with the information server through a network.
9. The traffic signal system based on the two-dimensional code of claim 7, wherein: the two-dimensional code display includes:
the two-dimensional code display communication module is used for being in charge of data communication with the information server and is a combination of at least one of 4G, 5G, Ethernet, optical fiber Ethernet, RS485 and RS 232;
the two-dimensional code display host module is used for converting the two-dimensional code information received from the two-dimensional code display communication module into a photoelectric signal of the two-dimensional code display screen;
and the two-dimensional code display screen is used for realizing the function of displaying the two-dimensional code.
10. The traffic signal system based on the two-dimensional code of claim 8, wherein: the road traffic signal includes:
the road traffic signal machine host module is used for taking charge of power supply, control and communication functions;
the two-dimensional code display screen control circuit module is used for controlling the two-dimensional code display screen;
the signal lamp control circuit module is used for controlling a traffic signal lamp;
and the road traffic signal machine communication module is used for being in charge of data communication with the information server.
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| CN202010671570.9A CN111785061A (en) | 2020-07-14 | 2020-07-14 | Traffic signal method and system based on two-dimensional code |
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