CN112734957A - ETC (electronic toll Collection) special short-range communication-based vehicle-road cooperation system and method - Google Patents
ETC (electronic toll Collection) special short-range communication-based vehicle-road cooperation system and method Download PDFInfo
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- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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Abstract
The invention relates to the technical field of ETC, and discloses a vehicle-road cooperative system and a method based on ETC special short-range communication, wherein the vehicle-road cooperative system comprises a vehicle-mounted electronic tag, a vehicle-mounted electronic tag and a vehicle-mounted electronic tag, wherein the vehicle-mounted electronic tag is used for carrying vehicle information and analyzing and shielding information; the road side unit is communicated with the vehicle-mounted electronic tag through 5.8G radio frequency, transmits ETC and vehicle road cooperative information through a national standard DSRC protocol, and is used for acquiring ETC information and V2X information of a vehicle; and the mobile terminal is connected with the electronic tag through Bluetooth and is used for displaying the V2X message. The invention realizes safe and efficient driving conditions through vehicle-road cooperation, so that the ETC system is more widely applicable to various scenes.
Description
Technical Field
The invention relates to the technical field of ETC, in particular to a vehicle-road cooperative system and a vehicle-road cooperative method based on ETC special short-range communication.
Background
ETC, i.e., electronic toll collection, is called the "most advanced road and bridge toll collection method". ETC can be realized by three major factors: an On Board Unit (OBU), a Road Side Unit (RSU), and a dedicated short-range communication technology (DSRC). When the vehicle approaches the toll station, the OBU and the RSU communicate through the DSRC, and the computer networking and the bank are used for background processing, so that the purpose of paying without stopping the vehicle is achieved.
The Vehicle-road cooperation is the latest direction of the development of an intelligent traffic system, advanced wireless communication and new generation internet and other technologies are adopted, V2X (Vehicle to evolution, exchange of Vehicle and external information) comprises Vehicle-Vehicle (V2V), Vehicle-road (V2I), Vehicle-network (V2N) and Vehicle-person (V2P) dynamic real-time information interaction, Vehicle active safety control and road cooperative management are carried out on the basis of full-time-space dynamic traffic information acquisition and fusion, and effective cooperation of the Vehicle and the road of a person is fully realized.
Domestic ETC has already met wide-range application conditions after 2019 comprehensive popularization. The vehicle-road cooperation is still in an early stage test stage, and the installation scale of the ETC system cannot be reached in a short period. Based on the ecology of ETC formation, it is a waste to simply do toll collection, so it is proposed to form applications based on ETC. ETC and vehicle and road have communicating in coordination, how to utilize ETC to have had the ecology, realize the safety and the efficiency promotion of road traffic environment, utilize the present ecology of ETC to promote vehicle and road in coordination, realize that the operation of road traffic safety environment becomes the problem that needs to solve in the future development.
The design of the vehicle-mounted electronic tag at the present stage has self limitation on the cooperative application of the vehicle and the road. Such as battery power, weak processing capability, simple man-machine interaction, etc. The battery is adopted for power supply, application requirements of more than five years can be met for high-speed and low-frequency application in a parking lot, but for cooperative application of a vehicle and a road, a road test unit broadcasts a large amount of safety, efficiency and service information, and the power-saving design of the vehicle-mounted electronic tag needs additional consideration. At present, human-computer interaction only comprises a buzzer and an indicator light, and complex information such as a map and early warning cannot be displayed.
In summary, the ETC system has its own limitations for the vehicle-road cooperative application based on the single application form of the ETC system and the design of the vehicle-mounted electronic tag at the present stage, and therefore, an additional optimization design needs to be provided, so that the ETC system can better meet the vehicle-road cooperative application.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a vehicle-road cooperation method based on ETC special short-range communication, which realizes safe and efficient driving conditions through vehicle-road cooperation and enables an ETC system to be more widely applied to various scenes.
In order to achieve the above purpose, the invention provides the following technical scheme:
a vehicle road cooperative system based on ETC special short-range communication comprises:
the vehicle-mounted electronic tag is used for carrying vehicle information and analyzing and shielding the information;
the road side unit is communicated with the vehicle-mounted electronic tag through 5.8G radio frequency, transmits ETC and vehicle road cooperative information through a national standard DSRC protocol, and is used for acquiring ETC information and V2X information of a vehicle.
And the mobile terminal is connected with the electronic tag through Bluetooth and is used for displaying the V2X message.
Further, the system also comprises an edge computing server, wherein the edge computing server is connected with the road side unit through an Ethernet to realize the uploading and issuing operation of the ETC transaction information and the vehicle-road cooperation information for the uploading and issuing operation of the vehicle-road cooperation information;
and the cloud platform is connected with the edge computing server and is used for completing the collection and analysis of the big data.
The invention also provides a vehicle-road cooperation method based on ETC special short-range communication, which comprises the following steps based on the system:
s1: the vehicle-mounted electronic tag receives a data packet sent by the road side unit;
s2: the vehicle-mounted electronic tag analyzes the data packet and divides an ETC message and a V2X message;
s3: carrying out ETC transaction on the ETC message, wherein the transaction is successful, and the vehicle-mounted electronic tag is dormant;
s4: for the V2X message, key data is extracted and transmitted to the mobile terminal for display.
In the present invention, further, the implementation process of S3 is as follows:
s30: judging whether the transaction is successful or not, and sleeping the vehicle-mounted tag; unsuccessfully perform step S31;
s31: it is determined whether the transaction is timed out and step S1 is executed without timing out.
In the present invention, further, the step S1 is preceded by a step S0:
step S0: and the road side unit broadcasts a message to wake up the vehicle-mounted electronic tag.
In the present invention, preferably, the step S4 includes:
s40: and judging whether the extracted key data meet the short-time shielding condition or not, if not, transmitting the data to the mobile terminal through Bluetooth for display, and sleeping the vehicle-mounted electronic tag.
In the present invention, further, the step S4 further includes:
s41: if the shielding condition is met, closing the awakening interrupt to the message needing shielding;
s42: and turning on a set timer, and enabling the tag to sleep within the shielding time of the timer.
Further, the step S0 includes:
s01: the road side unit collects vehicle-mounted electronic identification information and road side information of vehicles in a coverage range;
s02: the road side unit analyzes and processes the acquired data, communicates with the edge calculation server, and acquires ETC information and V2X information of the vehicle;
further, the step S0 further includes:
s03: sending radio frequency signals to the information of the collected vehicle through broadcasting so as to awaken the vehicle-mounted electronic identification;
s04: and sending a data packet of the ETC message and the V2X message to the vehicle-mounted electronic identifier.
In the present invention, preferably, the S2 vehicle-mounted electronic tag parses the data packet and divides the data packet into the ETC message and the V2X message, where the basis of dividing the message is the byte following the field header.
In the present invention, the masking condition of the message type in S3 is a comprehensive judgment of the rsu ID and the message type.
Compared with the prior art, the invention has the beneficial effects that:
(1) the roadside unit combines the traditional ETC system and roadside equipment in the V2X system, can upload and send ETC transaction information and vehicle-road cooperation information according to instructions of the edge computing server, and can divide received messages of the roadside unit, such as ETC broadcast messages, so as to complete the traditional ETC transaction process. Receive vehicle and road broadcast message in coordination, analytic message data passes through the bluetooth and sends for mobile terminal, like the cell-phone, the cell-phone shows the data of receiving in real time through APP, provides vehicle and road and realizes safe, efficient driving condition in coordination from this to can compensate the simple problem of electronic tags human-computer interaction through intelligent mobile terminal, make ETC system widely be applied to multiple scene.
(2) The vehicle-mounted electronic tag end is provided with a short-time shielding mechanism for the message, the vehicle-mounted electronic tag cannot be awakened by the radio frequency message of the road side unit in a shielding period and is in a dormant low-power consumption state, a new message is received after the shielding period, and the specific shielding time can be configured through an APP. Therefore, the influence of the broadcast storm on the vehicle-mounted electronic tag is relieved, the service life of the vehicle-mounted electronic identification battery is greatly prolonged, and the vehicle-road cooperation is better and more stably realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a vehicular access cooperative system based on ETC-specific short-range communication according to the present invention;
fig. 2 is a flowchart of a vehicle-road coordination method based on ETC dedicated short-range communication according to the present invention;
fig. 3 is a flowchart of step S0 in the ETC-dedicated short-range communication-based vehicle-road coordination method according to the present invention;
fig. 4 is a flowchart of step S4 in the vehicle-road coordination method based on ETC dedicated short-range communication according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a preferred embodiment of the present invention provides a vehicle-road cooperative system based on ETC dedicated short-range communication, which mainly includes five parts, namely a cloud platform, an edge computing server (MEC), a Road Side Unit (RSU), an on-board electronic tag (OBU), and a mobile terminal, and specifically includes the following:
the vehicle-mounted electronic tag is used for carrying vehicle information and analyzing and shielding the information;
the road side unit is communicated with the vehicle-mounted electronic tag through 5.8G radio frequency, transmits ETC and vehicle road cooperative information through a national standard DSRC protocol, and is used for acquiring ETC information and V2X information of a vehicle;
the mobile terminal is connected with the electronic tag through Bluetooth and is used for displaying the V2X message;
the edge computing server is connected with the road side unit through an Ethernet, and uploading and issuing operation of the ETC transaction information and the vehicle-road cooperation information is realized for uploading and issuing operation of the vehicle-road cooperation information;
specifically, the edge calculation is responsible for processing data collected by sensors, and common sensors such as cameras, radars, meteorological sensors and the like form real-time decisions; and receiving data issued by the cloud platform to perform comprehensive logic judgment.
And the cloud platform is connected with the edge computing server and is used for completing the collection and analysis of the big data. The traffic management platform can be used for supporting equipment state management, traffic event management, big data analysis, traffic scheduling information release and the like.
Specifically, in the invention, the vehicle-mounted electronic tags are connected through the Bluetooth mobile terminal, and in a specific embodiment provided by the invention, the mobile terminal is a smart phone, is connected with the smart phone through Bluetooth, and displays information such as a map, a signal lamp and early warning in real time through an APP (application) on the smart phone. The vehicle-mounted electronic tag and the road side unit communicate through 5.8G radio frequency, and ETC and vehicle and road cooperation messages are transmitted by adopting a national standard DSRC protocol. The road test unit is connected with the edge calculation server through the Ethernet, and the edge calculation server can be built by adopting a lane charging system, so that the uploading and issuing operation of the ETC transaction information and the vehicle-road cooperation information is completed. The cloud platform and the edge computing server are also connected through the Ethernet to complete the collection and analysis of the big data.
In addition, the drive test unit and the vehicle-mounted electronic tag in the invention can be based on the existing ETC equipment, and the PHY, MAC and LLC are kept unchanged for the special short-range communication protocol stack of the ETC. And adding vehicle-road cooperative message broadcasting on the APP layer of the road side unit, and distinguishing message types through bytes behind a field header. And the vehicle-mounted electronic tag APP layer is used for analyzing and processing the message. The specific broadcast message can be issued by the road side unit according to a configuration decision or through an edge computing server.
And the vehicle-mounted electronic tag wakes up to receive data, and if ETC broadcast messages are received, the traditional ETC transaction process is completed. The intelligent mobile terminal receives the vehicle-road cooperative broadcast message, analyzes the message data, carries out shielding judgment, sends the message which does not need shielding to the intelligent mobile phone through the Bluetooth, and the mobile phone displays the received data in real time through the APP, so that safe and efficient driving conditions are realized in cooperation with the vehicle-road, the problem of simple man-machine interaction of the electronic tag can be solved through the intelligent mobile terminal, and the ETC system is widely applied to various scenes. For the message needing shielding, the vehicle sleeps in the electronic tag within the preset shielding time so as to prevent the broadcast storm from influencing the vehicle-mounted electronic tag, and therefore the service life of a vehicle-mounted electronic tag battery is prolonged.
Based on the above system, as shown in fig. 2-4, the invention provides a vehicle-road cooperation method based on ETC-dedicated short-range communication, which includes:
s1: the vehicle-mounted electronic tag receives a data packet sent by the road side unit;
s2: the vehicle-mounted electronic tag analyzes the data packet and divides an ETC message and a V2X message;
s3: carrying out ETC transaction on the ETC message, wherein the transaction is successful, and the vehicle-mounted electronic tag is dormant;
s4: for the V2X message, key data is extracted and transmitted to the mobile terminal for display.
Specifically, in the invention, the vehicle-mounted electronic tag can simultaneously receive the ETC message and the V2X message, divide the messages according to bytes behind a field header, perform different processing aiming at the two messages, complete the traditional ETC transaction process for the received ETC message, and display the transaction information on the mobile data terminal if the transaction is successful. The vehicle-road cooperative broadcast message is received, the analyzed message data is sent to the mobile terminal through the Bluetooth, and if the mobile phone displays the received data in real time through the APP, the problem that the man-machine interaction of the ETC system is simple in the prior art is solved, so that the ETC system is widely applied to various scenes.
In the present invention, further, the step S1 is preceded by a step S0: and the road side unit broadcasts a message to wake up the vehicle-mounted electronic tag. Specifically, the step S0 includes:
s01: the road side unit collects vehicle-mounted electronic identification information and road side information of vehicles in a coverage range;
s02: the road side unit analyzes and processes the acquired data, communicates with the edge calculation server, and acquires ETC information and V2X information of the vehicle;
s03: sending radio frequency signals to the information of the collected vehicle through broadcasting so as to awaken the vehicle-mounted electronic identification;
s04: and sending a data packet of the ETC message and the V2X message to the vehicle-mounted electronic identifier.
In one embodiment of the present invention, the vehicle-mounted electronic identification information includes vehicle electronic identification records, but is not limited to, license plate number, vehicle type, engine number, chassis number, manufacturer, date of delivery, vehicle identification code, and the like. The road test unit checks the automobile electronic identification in the coverage area, obtains road side information of vehicle running information such as lanes and vehicle speed, and obtains V2X information suitable for specific vehicles by combining the road side information such as basic road information, signal lamp information and sensing data of sensing equipment in the area.
Thus, in one embodiment of the invention, the ETC message is issued by the edge computing server through the rsu, while the V2X message is configured to be issued internally by the rsu. Therefore, the workload of the MCU in the road side unit is reduced, and the running speed of the road side unit is improved.
In the present invention, further, the implementation process of S3 is as follows:
s30: judging whether the transaction is successful or not, and sleeping the vehicle-mounted tag; unsuccessfully perform step S31;
s31: it is determined whether the transaction is timed out and step S1 is executed without timing out.
Specifically, in the invention, whether the ETC process succeeds in the transaction process needs to be judged, and if the ETC process succeeds, the vehicle-mounted electronic tag directly sleeps to wait for awakening next time. If the transaction is not successfully judged to be overtime, the transaction is directly dormant if overtime occurs, and the transaction continues to be received if overtime does not occur. Especially when the phenomenon of traffic jam occurs near the toll station, the vehicle-mounted electronic tag shields the ETC message in the dormant state. Because the power consumption of the vehicle-mounted electronic tag under the dormancy state is low, the purpose of saving electricity is achieved.
In the present invention, preferably, the step S4 includes:
s40: and judging whether the extracted key data meet the short-time shielding condition or not, if not, transmitting the data to the mobile terminal through Bluetooth for display, and sleeping the vehicle-mounted electronic tag.
S41: if the shielding condition is met, closing the awakening interrupt to the message needing shielding;
s42: and turning on a set timer, and enabling the tag to sleep within the shielding time of the timer.
Specifically, in the invention, the vehicle-mounted electronic tag receives a data packet sent by the drive test unit after awakening, performs data packet analysis processing after successful receiving, judges whether the road side unit ID is repeated and whether the message type needs shielding for the vehicle-road cooperation message, closes awakening interruption when the shielding condition is met, sets a timer according to the configured shielding time, and then enters dormancy. And if the shielding condition is not met, carrying out data forwarding and displaying through the vehicle-mounted terminal. The vehicle-mounted electronic tag cannot be awakened by the radio frequency message of the road side unit in the shielding period, is in a dormant low-power consumption state, and receives a new message after the shielding period. The shielding condition of the message type is the comprehensive judgment of the road side unit ID and the message type, once the road side ID is repeated, the shielding is directly carried out, if the road side ID is not repeated, the judgment is carried out by combining different application scenes, the shielding time and the message type can be flexibly configured, and the service and efficiency related messages can not be concerned if the road side ID is not repeated.
So, on-vehicle electronic tags end is through having short-time shielding mechanism, avoids on-vehicle unit to receive too much not helping the not big roadside broadcast information, alleviates the broadcast storm and influences its, and it is long when having increased on-vehicle electronic tags's use, reduces the electric quantity consumption to realize the vehicle and road in coordination better more steadily.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a vehicle road cooperative system based on special short range communication of ETC which characterized in that includes:
the vehicle-mounted electronic tag is used for carrying vehicle information and analyzing and shielding the information;
the mobile terminal is connected with the electronic tag through Bluetooth and is used for displaying the V2X message;
the road side unit is communicated with the vehicle-mounted electronic tag through 5.8G radio frequency, ETC and vehicle road cooperative information is transmitted by adopting a national standard DSRC protocol, and the road side unit is used for acquiring ETC information and V2X information of a vehicle.
2. The ETC-dedicated short-range communication-based vehicle-road coordination method according to claim 1, characterized by further comprising
The edge computing server is connected with the road side unit through the Ethernet, and uploading and issuing operation of ETC transaction information and vehicle-road cooperation information are realized;
and the cloud platform is connected with the edge computing server and is used for finishing the collection and analysis of the big data.
3. A vehicle road cooperation method based on ETC special short-range communication, the system of any one of claims 1 to 2, characterized by comprising:
s1: the vehicle-mounted electronic tag receives a data packet sent by the road side unit;
s2: the vehicle-mounted electronic tag analyzes the data packet and divides an ETC message and a V2X message;
s3: carrying out ETC transaction on the ETC message, wherein the transaction is successful, and the vehicle-mounted electronic tag is dormant;
s4: for the V2X message, key data is extracted and transmitted to the mobile terminal for display.
4. The ETC-dedicated short-range communication-based vehicle-road coordination method according to claim 3, wherein the S3 is implemented as follows:
s30: judging whether the transaction is successful or not, and sleeping the vehicle-mounted tag; unsuccessfully perform step S31;
s31: it is determined whether the transaction is timed out and step S1 is executed without timing out.
5. The ETC-specific short-range communication-based vehicle-road coordination method according to claim 3, wherein the step S1 is preceded by a step S0:
step S0: and the road side unit broadcasts a message to wake up the vehicle-mounted electronic tag.
6. The ETC-specific short-range communication-based vehicle-road coordination method according to claim 4, wherein the step S4 comprises:
s40: and judging whether the extracted key data meet the short-time shielding condition or not, if not, transmitting the data to the mobile terminal through Bluetooth for display, and sleeping the vehicle-mounted electronic tag.
7. The ETC-specific short-range communication-based vehicle-road coordination method according to claim 3, wherein said step S4 further comprises:
s41: if the shielding condition is met, closing the awakening interrupt to the message needing shielding;
s42: and turning on a set timer, and enabling the tag to sleep within the shielding time of the timer.
8. The ETC-specific short-range communication-based vehicle-road coordination method according to claim 3, wherein the step S0 comprises:
s01: the road side unit collects vehicle-mounted electronic identification information and road side information of vehicles in a coverage range;
s02: and the road side unit analyzes and processes the acquired data, communicates with the edge calculation server, and acquires the ETC message and the V2X message of the vehicle.
9. The ETC-specific short-range communication-based vehicle-road coordination method according to claim 8, wherein said step S0 further comprises:
s03: sending radio frequency signals to the information of the collected vehicle through broadcasting so as to awaken the vehicle-mounted electronic identification;
s04: and sending a data packet of the ETC message and the V2X message to the vehicle-mounted electronic identifier.
10. The method according to claim 3, wherein the S2 vehicle-mounted electronic tag parses the data packet and divides the ETC message and the V2X message according to the byte behind the field header.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113593064A (en) * | 2021-07-23 | 2021-11-02 | 北京速通科技有限公司 | Vehicle-mounted unit, expressway electronic toll collection system and toll collection method |
| CN113611000A (en) * | 2021-07-23 | 2021-11-05 | 北京易路行技术有限公司 | Highway toll collection method and device |
| CN115346365A (en) * | 2022-07-19 | 2022-11-15 | 上海荃信信息技术有限公司 | Road side information acquisition method and device based on ETC communication |
| CN116013099A (en) * | 2022-12-28 | 2023-04-25 | 交通运输部路网监测与应急处置中心 | Information playing method and device for ETC partner, storage medium and electronic equipment |
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| CN113593064A (en) * | 2021-07-23 | 2021-11-02 | 北京速通科技有限公司 | Vehicle-mounted unit, expressway electronic toll collection system and toll collection method |
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| CN113593064B (en) * | 2021-07-23 | 2022-12-20 | 北京速通科技有限公司 | Vehicle-mounted unit, expressway electronic toll collection system and toll collection method |
| CN113611000B (en) * | 2021-07-23 | 2023-01-20 | 北京易路行技术有限公司 | Highway toll collection method and device |
| CN115346365A (en) * | 2022-07-19 | 2022-11-15 | 上海荃信信息技术有限公司 | Road side information acquisition method and device based on ETC communication |
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