CN111080819A - RSU and OBU matching method and system, storage medium and electronic device - Google Patents
RSU and OBU matching method and system, storage medium and electronic device Download PDFInfo
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- CN111080819A CN111080819A CN201911380595.7A CN201911380595A CN111080819A CN 111080819 A CN111080819 A CN 111080819A CN 201911380595 A CN201911380595 A CN 201911380595A CN 111080819 A CN111080819 A CN 111080819A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- 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
Abstract
The invention provides a method and a system for matching an RSU (remote subscriber Unit) and an OBU (on-board unit), a storage medium and an electronic device, wherein the method comprises the following steps: detecting an on-board unit (OBU) of a target vehicle in a target area through a Road Side Unit (RSU); determining a driving direction of a target vehicle in the case that the detected OBU of the target vehicle has not transacted within a predetermined time range; according to the technical scheme, the problem that in the related technology, the forward and reverse lanes of the expressway are relatively close, and the vehicle-mounted electronic tag or the composite pass card of the vehicle running on the expressway is awakened or transacted by the antenna of the adjacent reverse lane to cause low transaction success rate is solved, so that transaction failure caused by reverse transaction can be effectively reduced, and the transaction success rate of the free flow charging system is improved.
Description
Technical Field
The invention relates to the field of intelligent transportation, in particular to a matching method and system of an RSU and an OBU, a storage medium and an electronic device.
Background
Under the large background that provincial Toll stations are cancelled and Electronic Toll Collection (ETC) development is greatly promoted, a sectional type charging mode of a highway is brought by the law, and a multi-lane portal free flow charging system is widely applied.
The free flow charging system of the present highway uses two sets of transaction systems which are completely independent from each other on the front and reverse sections of the same road section. The independence of the two transactions has the following disadvantages: the forward and reverse lanes are generally close to each other (narrow isolation zones), the radio frequency signal radiation area of a Road Side Unit (RSU for short) is large, and an On board Unit (OBU for short) of an adjacent reverse lane can be awakened, and the reverse transaction is easy to cause communication interruption to cause transaction failure due to poor radio frequency signal quality and direction. Meanwhile, the receiving sensitivity of the Composite Pass Card (CPC) is higher, and the CPC is easier to be awakened by the RSU of the adjacent reverse lane, so that the transaction failure is caused. In the application of the free flow portal system of the current expressway, the failure of reverse transaction is the main reason influencing the success rate of the free flow portal system.
Therefore, a portal system for combined transaction of forward and reverse lanes is needed, which can transact electronic tags of the forward and reverse lanes, can distinguish the driving direction of a vehicle where an OBU is located, select an RSU with a correct section to transact with the vehicle, and effectively prevent reverse transaction.
Aiming at the problems that in the related technology, the forward and reverse lanes of the highway are relatively close, and the vehicle-mounted electronic tags (equivalent to OBUs) or Composite Pass Cards (CPCs) of vehicles running on the highway are awakened or transacted by the antennas of the adjacent reverse lanes, so that the success rate of transaction is low, and the like, an effective technical scheme is not provided.
Disclosure of Invention
The embodiment of the invention provides a matching method and a matching system of an RSU and an OBU, a storage medium and an electronic device, and aims to at least solve the problems that in the related technology, the forward lanes and the reverse lanes of a highway are relatively close, and the vehicle-mounted electronic tags or composite pass cards of vehicles running on the highway are awakened or transacted by antennas of the adjacent reverse lanes, so that the transaction success rate is low, and the like.
According to an embodiment of the present invention, there is provided a method for matching an RSU and an OBU, including: detecting an on-board unit (OBU) of a target vehicle in a target area through a Road Side Unit (RSU); determining a driving direction of a target vehicle in the case that the detected OBU of the target vehicle has not transacted within a predetermined time range; and controlling the RSU to indicate that the RSU corresponding to the driving direction is matched with the OBU of the target vehicle according to the driving direction.
In an embodiment of the present invention, determining the traveling direction of the target vehicle includes: obtaining entrance information of the target vehicle through the RSU, wherein the entrance information at least comprises one of the following items: entrance toll station number, entrance time; sending the entrance information to a lane industrial personal computer to indicate the lane industrial personal computer to determine the driving direction of the target vehicle according to the entrance information; and receiving the driving direction of the target vehicle sent by the lane industrial personal computer.
In an embodiment of the present invention, determining the traveling direction of the target vehicle includes: receiving, by the RSU, an uplink frame of an OBU, and determining a signal strength of the uplink frame of the OBU, wherein the RSU includes: a first RSU in a forward direction, a second RSU in a reverse direction; determining that the traveling direction of the target vehicle is forward traveling when the signal strength of the uplink frame of the OBU received by the first RSU is greater than the signal strength of the uplink frame of the OBU received by the second RSU; and determining the traveling direction of the target vehicle as reverse traveling when the signal strength of the uplink frame of the OBU received by the second RSU is greater than the signal strength of the uplink frame of the OBU received by the first RSU.
In an embodiment of the present invention, controlling the RSU to instruct matching of the RSU corresponding to the traveling direction and the OBU of the target vehicle according to the traveling direction includes: under the condition that the running direction indicates that the target vehicle is a first running direction currently, acquiring a first RSU corresponding to the first running direction, and controlling the first RSU to be matched with an OBU of the target vehicle; and under the condition that the running direction indicates that the target vehicle is a second running direction currently, acquiring a second RSU corresponding to the second running direction, and controlling the second RSU to be matched with the OBU of the target vehicle, wherein the first running direction and the second running direction are opposite directions.
In an embodiment of the present invention, after controlling the RSU to indicate that the RSU corresponding to the driving direction matches the OBU of the target vehicle according to the driving direction, the method further includes: saving, by the RSU, a matching result, wherein the matching result includes at least one of: the MAC of the OBU, the matching time and the matched RSU.
In an embodiment of the present invention, acquiring the entrance information of the target vehicle by the RSU includes: sending a control instruction to the RSU through the RSU, wherein the control instruction is used for indicating the RSU to send a downlink frame to the OBU so that the OBU sends an uplink frame to a target RSU; and interacting the target RSU receiving the uplink frame and the OBU through the RSU indication to acquire the entrance information of the target vehicle.
According to another embodiment of the present invention, there is also provided a system for matching an RSU and an OBU, including: the system comprises an RSU, an on-board unit (OBU) and a Road Side Unit (RSU), wherein the RSU is used for detecting the OBU of a target vehicle in a target area; determining a driving direction of a target vehicle in the case that the detected OBU of the target vehicle has not transacted within a predetermined time range; and controlling the RSU to indicate that the RSU corresponding to the driving direction is matched with the OBU of the target vehicle according to the driving direction.
In an embodiment of the present invention, the system further includes: the lane industrial personal computer, wherein, the RSU is still used for acquireing the entry information of target vehicle, wherein, entry information includes one of following at least: the entrance toll station number and the entrance time are used for sending the entrance information to a lane industrial personal computer; and the lane industrial personal computer is used for determining the driving direction of the target vehicle according to the entrance information and sending the driving direction of the target vehicle to the RSU.
In an embodiment of the present invention, the road side unit RSU includes: the method comprises the steps that a first RSU corresponding to a first driving direction and a second RSU corresponding to a second driving direction are used, wherein the RSUs are further used for acquiring the first RSU corresponding to the first driving direction and controlling the first RSU to be matched with an OBU of a target vehicle under the condition that the driving direction indicates that the target vehicle is the first driving direction currently; and under the condition that the running direction indicates that the target vehicle is a second running direction currently, acquiring a second RSU corresponding to the second running direction, and controlling the second RSU to be matched with the OBU of the target vehicle, wherein the first running direction and the second running direction are opposite directions.
In this embodiment of the present invention, the RSU is further configured to store a matching result through the RSU, where the matching result at least includes one of: the MAC of the OBU, the matching time and the matched RSU.
In this embodiment of the present invention, the RSU is further configured to send a control instruction to the RSU, where the control instruction is used to instruct the RSU to send a downlink frame to the OBU, so that the OBU sends an uplink frame to the target RSU; and indicating the target RSU receiving the uplink frame to interact with the OBU so as to acquire the entrance information of the target vehicle.
In this embodiment of the present invention, the RSU is further configured to receive an uplink frame of an OBU, and determine a signal strength of the uplink frame of the OBU, where the RSU includes: a first RSU in a forward direction, a second RSU in a reverse direction; determining that the traveling direction of the target vehicle is forward traveling when the signal strength of the uplink frame of the OBU received by the first RSU is greater than the signal strength of the uplink frame of the OBU received by the second RSU; and determining the traveling direction of the target vehicle as reverse traveling when the signal strength of the uplink frame of the OBU received by the second RSU is greater than the signal strength of the uplink frame of the OBU received by the first RSU.
According to another embodiment of the present invention, there is also provided a storage medium having a computer program stored therein, wherein the computer program is configured to execute any one of the above RSU-OBU matching methods when executed.
According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.
According to the invention, the road side unit RSU is used for detecting the on-board unit OBU of the target vehicle in the target area; determining a driving direction of a target vehicle in the case that the detected OBU of the target vehicle has not transacted within a predetermined time range; according to the technical scheme, the problems that in the related technology, the forward and reverse lanes of the expressway are relatively close, and the vehicle-mounted electronic tag or the composite pass card of the running vehicle on the expressway is awakened or transacted by the antenna of the adjacent reverse lane to cause low transaction success rate are solved, so that the transaction failure caused by reverse transaction can be effectively reduced, and the transaction success rate of the free flow charging system is improved.
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 application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a block diagram of a hardware structure of an RSU of a method for matching an RSU and an OBU according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for matching an RSU and an OBU according to an embodiment of the present invention;
FIG. 3 is a block diagram of an RSU in accordance with an alternative embodiment of the present invention;
fig. 4 is a block diagram of a matching system of an RSU and an OBU according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The method embodiments provided by the embodiments of the present application may be executed in an RSU, a computer terminal, or a similar computing system. Taking the RSU as an example, fig. 1 is a hardware structure block diagram of an RSU of a method for matching an RSU and an OBU according to an embodiment of the present invention. As shown in fig. 1, RSU10 may include one or more (only one shown in fig. 1) processors 102 (processor 102 may include, but is not limited to, a processing system such as a microprocessor MCU or a programmable logic device FPGA) and memory 104 for storing data, and optionally may also include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is merely illustrative and is not intended to limit the structure of the RSU described above. For example, the RSU10 may also include more or fewer components than shown in fig. 1, or have a different configuration with equivalent functionality to that shown in fig. 1 or with more functionality than that shown in fig. 1.
The memory 104 may be used to store a computer program, for example, a software program of an application software and a module, such as a computer program corresponding to the RSU and OBU matching method in the embodiment of the present invention, and the processor 102 executes the computer program stored in the memory 104 to execute various functional applications and data processing, i.e., to implement the above-mentioned method. The memory 104 may include high speed random access memory and may also include non-volatile memory, such as one or more magnetic storage systems, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the RSU10 through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission system 106 is used to receive or transmit data via a network. Specific examples of such networks may include wireless networks provided by the communications provider of the RSU 10. In one example, the transmission system 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission system 106 can be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.
According to an embodiment of the present invention, there is provided a method for matching an RSU and an OBU, which is applied to an ETC system, and fig. 2 is a flowchart of the method for matching an RSU and an OBU according to the embodiment of the present invention, as shown in fig. 2, including:
step 202, detecting an on-board unit (OBU) of a target vehicle in a target area through a Road Side Unit (RSU);
step 204, determining the driving direction of the target vehicle under the condition that the detected OBU of the target vehicle does not perform transaction within a preset time range;
and step 206, controlling the RSU to indicate the RSU corresponding to the driving direction to be matched with the OBU of the target vehicle according to the driving direction.
According to the invention, the road side unit RSU is used for detecting the on-board unit OBU of the target vehicle in the target area; determining a driving direction of a target vehicle in the case that the detected OBU of the target vehicle has not transacted within a predetermined time range; according to the technical scheme, the problems that in the related technology, the forward and reverse lanes of the expressway are relatively close, and the vehicle-mounted electronic tag or the composite pass card of the running vehicle on the expressway is awakened or transacted by the antenna of the adjacent reverse lane to cause low transaction success rate are solved, so that the transaction failure caused by reverse transaction can be effectively reduced, and the transaction success rate of the free flow charging system is improved.
In an embodiment of the present invention, determining the traveling direction of the target vehicle includes: obtaining entrance information of the target vehicle through the RSU, wherein the entrance information at least comprises one of the following items: entrance toll station number, entrance time; sending the entrance information to a lane industrial personal computer to indicate the lane industrial personal computer to determine the driving direction of the target vehicle according to the entrance information; receiving the driving direction of the target vehicle sent by the lane industrial personal computer, and when the RSU detects the OBU, if the OBU does not transact within a certain time, selecting the RSU which receives the information of the OBU to communicate with the RSU to acquire the entrance information of the RSU; and the lane industrial personal computer selects a corresponding transaction flow and determines the running direction of the target vehicle according to the entrance information according to the entrance toll station number and the entrance time, and further performs flow interaction with the RSU to send the determined running direction of the target vehicle to the RSU.
In an embodiment of the present invention, controlling the RSU to instruct matching of the RSU corresponding to the traveling direction and the OBU of the target vehicle according to the traveling direction includes: under the condition that the running direction indicates that the target vehicle is a first running direction currently, acquiring a first RSU corresponding to the first running direction, and controlling the first RSU to be matched with an OBU of the target vehicle; and under the condition that the running direction indicates that the target vehicle is the second running direction at present, acquiring a second RSU corresponding to the second running direction, controlling the second RSU to be matched with the OBU of the target vehicle, wherein the first running direction and the second running direction are opposite directions, matching the OBU of the target vehicle running freely in the forward direction and the reverse direction of the same road section through the RSU, acquiring entrance information of the current target vehicle, determining the running direction of the current target vehicle according to the entrance information, indicating the RSU corresponding to the running direction and the OBU of the target vehicle according to the running direction of the target vehicle to be matched and selecting a corresponding transaction flow, further reducing transaction failure caused by reverse transaction, and improving the transaction success rate of the free flow charging system.
In an embodiment of the present invention, after controlling the RSU to indicate that the RSU corresponding to the driving direction matches the OBU of the target vehicle according to the driving direction, the method further includes: saving, by the RSU, a matching result, wherein the matching result includes at least one of: the method comprises the steps that the MAC of the OBU, the matching time and the matched RSU are used, the RSU determines the running direction of a target vehicle according to a flow instruction issued by a lane industrial personal computer, the RSU controls a group of RSUs where the direction is located to be matched with the OBU of the target vehicle to finish transaction, the RSU stores the matching result of the media access control MAC corresponding to the OBU of the target vehicle in the matching time, and if the RSU detects that the OBU of the target vehicle performs transaction in the matching time, interaction with the OBU of the target vehicle is avoided.
In an embodiment of the present invention, acquiring the entrance information of the target vehicle by the RSU includes: sending a control instruction to the RSU through the RSU, wherein the control instruction is used for indicating the RSU to send a downlink frame to the OBU so that the OBU sends an uplink frame to a target RSU; and indicating, by the RSU, that the target RSU receiving the uplink frame interacts with the OBU to acquire the entry information of the target vehicle, that is, the target RSU that has successfully communicated with the OBU, for example, has received the uplink frame sent by the OBU, needs to interact with the OBU to acquire the entry information of the target vehicle.
Optionally, determining the direction of travel of the target vehicle comprises: receiving, by the RSU, an uplink frame of an OBU, and determining a signal strength of the uplink frame of the OBU, wherein the RSU includes: a first RSU in a forward direction, a second RSU in a reverse direction; determining that the traveling direction of the target vehicle is forward traveling when the signal strength of the uplink frame of the OBU received by the first RSU is greater than the signal strength of the uplink frame of the OBU received by the second RSU; and determining the traveling direction of the target vehicle as reverse traveling when the signal strength of the uplink frame of the OBU received by the second RSU is greater than the signal strength of the uplink frame of the OBU received by the first RSU.
That is, in the embodiment of the present invention, in addition to determining the traveling direction of the target OBU based on the entry information, the traveling direction may also be determined based on the uplink frame signal strength of the OBU. And when the RSU receives an uplink frame of a target OBU, the signal strength value of the uplink frame can be detected. When the average value of the received signal strength of each RSU of the forward lane is larger than the average value of the received signal strength of each RSU of the reverse lane, the target OBU is judged to be on the forward lane; otherwise, the target OBU is judged to be on the reverse lane; and subsequently, performing data interaction by using the RSU in the direction corresponding to the target OBU.
The technical solutions of the above-mentioned RSU and OBU matching method are explained below with reference to an example, but the technical solutions of the embodiments of the present invention are not limited.
An alternative embodiment of the present invention employs one RSU to perform the transaction operation simultaneously for free-running vehicles (corresponding to the target vehicle in the embodiment of the present invention) on the same road segment in both the forward and reverse directions. Each section is provided with a group of RSUs, and the RSUs and the OBUs of the section where the RSUs are located (corresponding to the OBUs of the target vehicle in the embodiment of the invention) complete the interaction of radio frequency signals. The RSU can carry out data communication with all RSUs of the two sections, and information interaction is achieved. The lane transaction upper computer can select a corresponding transaction flow according to the entrance information of the OBU. And the modules are in data communication through a network.
Fig. 3 is a block diagram of RSUs according to an alternative embodiment of the present invention, which are divided into two groups according to a driving direction of a vehicle, as shown in fig. 3, with RSUs 1, RSUs 2, and RSUs 3 installed as a group above a lane for driving in a forward direction, and RSUs 4, RSUs 5, and RSUs 6 installed as a group B above a lane for driving in a reverse direction; the group A antenna carries out radio frequency information interaction with the OBU which runs in the forward direction, and the group B antenna carries out radio frequency information interaction with the OBU which runs in the reverse direction; the RSU sends a downlink frame according to the instruction of the RSU and forwards the received information of the OBU to the RSU; it should be noted that the above embodiment does not limit the number of lanes, the number of RSUs is six as an example, and the invention is not limited thereto.
It should be noted that the OBU includes a two-piece electronic tag, a one-piece electronic tag, a composite access card (CPC), and other on-board units capable of performing data interaction with the RSU. The RSU and the RSU controller may be combined into a RSU, the steps may also be executed by a separate RSU controller, or may also be executed by a RSU integrated with the RSU and the RSU controller, which is not limited in the embodiment of the present invention.
The RSUs are capable of data communication with all RSUs of group a and group B; when the RSU detects the OBU, if the RSU does not perform transaction within a certain time, the RSU receiving the OBU information is used for interacting with the RSU to acquire entrance information and sending the entrance information to a lane transaction industrial personal computer (which is equivalent to the lane industrial personal computer in the embodiment of the invention); and the RSU determines the driving direction of the OBU according to a flow instruction issued by the lane transaction industrial personal computer, and controls a group of RSUs in which the direction is located to complete the transaction. And recording the transaction flow; if the detected OBU has transacted within a certain time, it will not interact with the OBU.
And the lane industrial personal computer is communicated with the RSU, selects a transaction flow according to the entrance information of the OBU uploaded by the RSU, and issues a flow control instruction to the RSU. The specific implementation mode is as follows:
the method comprises the following steps: when the RSU detects the OBU, if the OBU does not transact within a certain time, the RSU which receives the OBU information is selected to communicate with the OBU, and the entrance information of the RSU is acquired; the entrance information comprises entrance toll station number and entrance time;
step two: the lane transaction industrial personal computer selects a corresponding transaction flow according to the entrance information and performs flow interaction with the RSU;
step three: the RSU determines the driving direction of the OBU according to a flow instruction of the lane transaction industrial personal computer, and selects a group of RSUs corresponding to the direction to perform transaction with the OBU;
step four: the RSU records transaction flow information of the OBU, wherein the transaction flow information comprises MAC (media access control), transaction time and transaction results of the OBU;
the embodiment of the invention shares one RSU by the two forward and reverse sections of the same road section, simultaneously carries out the transaction of the two sections, completely acquires the information of all OBUs passing through the road section by selecting the RSU of the section where the OBU is positioned to carry out data interaction with the OBU, determines the driving direction of the OBU according to the acquired entry information, and selects the corresponding transaction flow according to the acquired entry information, thereby preventing the RSU from carrying out transaction on the OBUs of the section, effectively reducing the transaction failure caused by the reverse transaction, and improving the transaction success rate of the free flow charging system. The RSU and the lane industrial personal computer are shared between the front section and the back section, so that the number of devices is reduced, and the system cost is reduced.
In summary, in the embodiments of the present invention, the same RSU is used to control the RSUs of the forward and reverse sections of the same road section, and perform transactions of the forward and reverse sections at the same time, so as to completely acquire information of all OBUs passing through the road section, determine the driving direction of the OBU according to the acquired path information, and select a corresponding transaction flow, thereby preventing reverse transactions, effectively reducing transaction failures caused by reverse transactions, and improving the transaction success rate of the free flow charging system.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above flow is described below with reference to another alternative embodiment, but is not limited to the technical solution of the embodiment of the present invention, and fig. 4 is a block diagram of a matching system of an RSU and an OBU according to the embodiment of the present invention.
RSU42, on board unit OBU44, roadside unit RSU46,
wherein the RSU42 is used for detecting the OBU of the target vehicle in the target area; determining a driving direction of a target vehicle in the case that the detected OBU of the target vehicle has not transacted within a predetermined time range; and controlling the RSU to indicate that the RSU corresponding to the driving direction is matched with the OBU of the target vehicle according to the driving direction.
According to the invention, the road side unit RSU is used for detecting the on-board unit OBU of the target vehicle in the target area; determining a driving direction of a target vehicle in the case that the detected OBU of the target vehicle has not transacted within a predetermined time range; according to the technical scheme, the problems that in the related technology, the forward and reverse lanes of the expressway are relatively close, and the vehicle-mounted electronic tag or the composite pass card of the running vehicle on the expressway is awakened or transacted by the antenna of the adjacent reverse lane to cause low transaction success rate are solved, so that the transaction failure caused by reverse transaction can be effectively reduced, and the transaction success rate of the free flow charging system is improved.
In an embodiment of the present invention, the system further includes: the lane industrial personal computer, wherein, the RSU is still used for acquireing the entry information of target vehicle, wherein, entry information includes one of following at least: the entrance toll station number and the entrance time are used for sending the entrance information to a lane industrial personal computer; the lane industrial personal computer is used for determining the driving direction of the target vehicle according to the entrance information and sending the driving direction of the target vehicle to the RSU, and when the RSU detects the OBU, if the OBU does not transact within a certain time, the RSU which receives the OBU information is selected to be used for communicating with the RSU to obtain the entrance information; and the lane industrial personal computer selects a corresponding transaction flow and determines the running direction of the target vehicle according to the entrance information according to the entrance toll station number and the entrance time, and further performs flow interaction with the RSU to send the determined running direction of the target vehicle to the RSU.
In an embodiment of the present invention, the road side unit RSU includes: the method comprises the steps that a first RSU corresponding to a first driving direction and a second RSU corresponding to a second driving direction are used, wherein the RSUs are further used for acquiring the first RSU corresponding to the first driving direction and controlling the first RSU to be matched with an OBU of a target vehicle under the condition that the driving direction indicates that the target vehicle is the first driving direction currently; and under the condition that the running direction indicates that the target vehicle is the second running direction at present, acquiring a second RSU corresponding to the second running direction, controlling the second RSU to be matched with the OBU of the target vehicle, wherein the first running direction and the second running direction are opposite directions, matching the OBU of the target vehicle running freely in the forward direction and the reverse direction of the same road section through the RSU, acquiring entrance information of the current target vehicle, determining the running direction of the current target vehicle according to the entrance information, indicating the RSU corresponding to the running direction according to the running direction of the target vehicle to be matched with the OBU of the target vehicle and selecting a corresponding transaction flow according to the RSU of the target vehicle, further reducing transaction failure caused by reverse transaction, and improving the transaction success rate of the free flow charging system.
In this embodiment of the present invention, the RSU is further configured to store a matching result through the RSU, where the matching result at least includes one of: the method comprises the steps that the MAC of the OBU, the matching time and the matched RSU are used, the RSU determines the running direction of a target vehicle according to a flow instruction issued by a lane industrial personal computer, the RSU controls a group of RSUs where the direction is located to be matched with the OBU of the target vehicle to finish transaction, the RSU stores the matching result of the media access control MAC corresponding to the OBU of the target vehicle in the matching time, and if the RSU detects that the OBU of the target vehicle performs transaction in the matching time, interaction with the OBU of the target vehicle is avoided.
In this embodiment of the present invention, the RSU is further configured to send a control instruction to the RSU, where the control instruction is used to instruct the RSU to send a downlink frame to the OBU, so that the OBU sends an uplink frame to the target RSU; and indicating the target RSU receiving the uplink frame to interact with the OBU to acquire the entry information of the target vehicle, that is, the target RSU that has successfully communicated with the OBU, for example, has received the uplink frame sent by the OBU, needs to interact with the OBU to acquire the entry information of the target vehicle.
The RSU is further configured to receive an uplink frame of an OBU and determine a signal strength of the uplink frame of the OBU, where the RSU includes: a first RSU in a forward direction, a second RSU in a reverse direction; determining that the traveling direction of the target vehicle is forward traveling when the signal strength of the uplink frame of the OBU received by the first RSU is greater than the signal strength of the uplink frame of the OBU received by the second RSU; and determining the traveling direction of the target vehicle as reverse traveling when the signal strength of the uplink frame of the OBU received by the second RSU is greater than the signal strength of the uplink frame of the OBU received by the first RSU.
That is, in the embodiment of the present invention, in addition to determining the traveling direction of the target OBU based on the entry information, the traveling direction may also be determined based on the uplink frame signal strength of the OBU. And when the RSU receives an uplink frame of a target OBU, the signal strength value of the uplink frame can be detected. When the average value of the received signal strength of each RSU of the forward lane is larger than the average value of the received signal strength of each RSU of the reverse lane, the target OBU is judged to be on the forward lane; otherwise, the target OBU is judged to be on the reverse lane; and subsequently, performing data interaction by using the RSU in the direction corresponding to the target OBU.
Embodiments of the present invention also provide a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
Alternatively, in the present embodiment, the storage medium may be configured to store a computer program for executing the steps of:
s1, detecting an on-board unit (OBU) of the target vehicle in the target area through the Road Side Unit (RSU);
s2, determining the driving direction of the target vehicle when the detected OBU of the target vehicle does not transact within a preset time range;
and S3, controlling the RSU to indicate the RSU corresponding to the driving direction to be matched with the OBU of the target vehicle according to the driving direction.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
s1, detecting an on-board unit (OBU) of the target vehicle in the target area through the Road Side Unit (RSU);
s2, determining the driving direction of the target vehicle when the detected OBU of the target vehicle does not transact within a preset time range;
and S3, controlling the RSU to indicate the RSU corresponding to the driving direction to be matched with the OBU of the target vehicle according to the driving direction.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented in a general purpose computing system, centralized on a single computing system or distributed across a network of computing systems, or alternatively implemented in program code that is executable by a computing system, such that the steps shown and described may be executed by a computing system on storage systems, and in some cases, performed in an order other than that shown and described herein, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from a plurality of modules or steps. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A matching method of an RSU and an OBU is applied to an ETC system and is characterized by comprising the following steps:
detecting an on-board unit (OBU) of a target vehicle in a target area through a Road Side Unit (RSU);
determining a driving direction of a target vehicle in the case that the detected OBU of the target vehicle has not transacted within a predetermined time range;
and controlling the RSU to indicate that the RSU corresponding to the driving direction is matched with the OBU of the target vehicle according to the driving direction.
2. The method of claim 1, wherein determining the direction of travel of the target vehicle comprises:
obtaining entrance information of the target vehicle through the RSU, wherein the entrance information at least comprises one of the following items: entrance toll station number, entrance time;
sending the entrance information to a lane industrial personal computer to indicate the lane industrial personal computer to determine the driving direction of the target vehicle according to the entrance information;
and receiving the driving direction of the target vehicle sent by the lane industrial personal computer.
3. The method of claim 1, wherein determining the direction of travel of the target vehicle comprises:
receiving, by the RSU, an uplink frame of an OBU, and determining a signal strength of the uplink frame of the OBU, wherein the RSU includes: a first RSU in a forward direction, a second RSU in a reverse direction;
determining that the traveling direction of the target vehicle is forward traveling when the signal strength of the uplink frame of the OBU received by the first RSU is greater than the signal strength of the uplink frame of the OBU received by the second RSU;
and determining the traveling direction of the target vehicle as reverse traveling when the signal strength of the uplink frame of the OBU received by the second RSU is greater than the signal strength of the uplink frame of the OBU received by the first RSU.
4. The method of claim 1, wherein controlling the RSU according to the driving direction to indicate that the RSU corresponding to the driving direction matches the OBU of the target vehicle comprises:
under the condition that the running direction indicates that the target vehicle is a first running direction currently, acquiring a first RSU corresponding to the first running direction, and controlling the first RSU to be matched with an OBU of the target vehicle;
and under the condition that the running direction indicates that the target vehicle is a second running direction currently, acquiring a second RSU corresponding to the second running direction, and controlling the second RSU to be matched with the OBU of the target vehicle, wherein the first running direction and the second running direction are opposite directions.
5. The method of claim 1, wherein after controlling the RSU according to the driving direction to indicate that the RSU corresponding to the driving direction matches the OBU of the target vehicle, the method further comprises:
saving, by the RSU, a matching result, wherein the matching result includes at least one of: the MAC of the OBU, the matching time and the matched RSU.
6. The method of claim 2, wherein obtaining the ingress information of the target vehicle by the RSU comprises:
sending a control instruction to the RSU through the RSU, wherein the control instruction is used for indicating the RSU to send a downlink frame to the OBU so that the OBU sends an uplink frame to a target RSU;
and interacting the target RSU receiving the uplink frame and the OBU through the RSU indication to acquire the entrance information of the target vehicle.
7. A system for matching an RSU to an OBU, comprising: an RSU, an On Board Unit (OBU), a Road Side Unit (RSU), wherein,
the RSU is used for detecting an OBU of a target vehicle in a target area; determining a driving direction of a target vehicle in the case that the detected OBU of the target vehicle has not transacted within a predetermined time range; and controlling the RSU to indicate that the RSU corresponding to the driving direction is matched with the OBU of the target vehicle according to the driving direction.
8. The system of claim 7, further comprising: a lane industrial control computer, wherein,
the RSU is further configured to obtain entrance information of the target vehicle, where the entrance information at least includes one of: the entrance toll station number and the entrance time are used for sending the entrance information to a lane industrial personal computer;
and the lane industrial personal computer is used for determining the driving direction of the target vehicle according to the entrance information and sending the driving direction of the target vehicle to the RSU.
9. The system of claim 7, wherein the Road Side Unit (RSU) comprises: a first RSU corresponding to a first direction of travel, a second RSU corresponding to a second direction of travel, wherein,
the RSU is further used for acquiring a first RSU corresponding to a first driving direction under the condition that the driving direction indicates that the target vehicle is a first driving direction currently, and controlling the first RSU to be matched with an OBU of the target vehicle; and under the condition that the running direction indicates that the target vehicle is a second running direction currently, acquiring a second RSU corresponding to the second running direction, and controlling the second RSU to be matched with the OBU of the target vehicle, wherein the first running direction and the second running direction are opposite directions.
10. The system according to claim 7, wherein the RSU is further configured to store a matching result through the RSU, wherein the matching result comprises at least one of: the MAC of the OBU, the matching time and the matched RSU.
11. The system of claim 8, wherein the RSU is further configured to send a control instruction to the RSU, wherein the control instruction is configured to instruct the RSU to send a downlink frame to the OBU, so that the OBU sends an uplink frame to the target RSU; and indicating the target RSU receiving the uplink frame to interact with the OBU so as to acquire the entrance information of the target vehicle.
12. The system of claim 8, wherein the RSU is further configured to receive an upstream frame of an OBU and determine a signal strength of the upstream frame of the OBU, and wherein the RSU comprises: a first RSU in a forward direction, a second RSU in a reverse direction; determining that the traveling direction of the target vehicle is forward traveling when the signal strength of the uplink frame of the OBU received by the first RSU is greater than the signal strength of the uplink frame of the OBU received by the second RSU; and determining the traveling direction of the target vehicle as reverse traveling when the signal strength of the uplink frame of the OBU received by the second RSU is greater than the signal strength of the uplink frame of the OBU received by the first RSU.
13. A computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to carry out the method of any one of claims 1 to 6 when executed.
14. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 6.
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