CN117218736A

CN117218736A - Electronic transaction method, electronic transaction device, terminal equipment and storage medium

Info

Publication number: CN117218736A
Application number: CN202310973420.7A
Authority: CN
Inventors: 杨鹏程; 朱胜超; 崔新
Original assignee: Beijing Wanji Technology Co Ltd
Current assignee: Beijing Wanji Technology Co Ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2023-12-12

Abstract

The application is applicable to the technical field of intelligent transportation, and provides an electronic transaction method, an electronic transaction device, terminal equipment and a storage medium, wherein the method comprises the following steps: acquiring first lane positioning information of a target vehicle-mounted unit determined by a first road side unit; converting the first lane positioning information into a preset reference coordinate system, and determining first reference positioning information; and determining the transaction road side unit according to the preset first confidence coefficient of the first road side unit on the first reference positioning information. Therefore, by judging the confidence coefficient of the position of the vehicle-mounted unit and selecting whether the first road side unit is used as the road side unit of the final transaction, the situation that the road side units of other lanes and the target vehicle-mounted unit are subjected to transaction due to abnormal positioning caused by signal interference can be avoided, and the accuracy of electronic transaction is improved.

Description

Electronic transaction method, electronic transaction device, terminal equipment and storage medium

Technical Field

The application belongs to the technical field of intelligent transportation, and particularly relates to an electronic transaction method, an electronic transaction device, terminal equipment and a storage medium.

Background

With the development of electronic transaction technology, a way of paying a bill for payment required by using electronic communication technology has emerged. For example, in charging entrances and exits such as high-speed and parking lots, etc., an ETC (Electronic Toll Collection) system is generally arranged to conduct electronic transaction with vehicles, so that manual charging is replaced, driving user experience is improved, working pressure of toll collector is relieved, and the problem of congestion of the toll exits is effectively relieved.

In the related art, a Road Side Unit (RSU) in the ETC system has a positioning function, so that the position of a vehicle-mounted Unit (or On board Unit, OBU) can be obtained in real time, and electronic transaction of a corresponding lane is completed based On the position of the vehicle-mounted Unit, thereby improving the transaction success rate of the ETC system.

However, because the iron materials such as the light shield, the indication board, the toll booth and the like are arranged near the toll gate, reflection, refraction and the like of signals are very easy to cause, the signals of the lane are reflected and refracted to the adjacent lanes, the transaction of the adjacent lanes is caused, and finally the electronic transaction is failed.

Disclosure of Invention

The embodiment of the application provides an electronic transaction method, an electronic transaction device, terminal equipment and a storage medium, which can improve the accuracy of electronic transaction.

A first aspect of an embodiment of the present application provides an electronic transaction method, including:

acquiring first lane positioning information of a target vehicle-mounted unit determined by a first road side unit, wherein the first road side unit refers to any road side unit requesting transaction to the target vehicle-mounted unit, and the first lane positioning information is positioning information under a lane coordinate system corresponding to the first road side unit; converting the first lane positioning information into a preset reference coordinate system, and determining first reference positioning information; and determining a transaction road side unit according to a preset first confidence coefficient of the first road side unit on the first reference positioning information, wherein the transaction road side unit is used for carrying out electronic transaction with the target vehicle-mounted unit.

In a possible implementation manner of the first aspect, determining the transaction roadside unit according to a preset first confidence level of the first roadside unit for the first reference positioning information includes:

and determining a transaction road side unit in the first road side unit and each second road side unit according to the preset first confidence coefficient and the preset second confidence coefficient of at least one second road side unit for the first reference positioning information, wherein the second road side unit refers to a road side unit which requests transaction from the target vehicle-mounted unit except the first road side unit.

Optionally, in another possible implementation manner of the first aspect, determining the transaction roadside unit in the first roadside unit and each second roadside unit according to the preset first confidence coefficient and the preset second confidence coefficient of the at least one second roadside unit for the first reference positioning information includes:

judging whether the preset first confidence coefficient is larger than each preset second confidence coefficient or not;

if yes, determining the first road side unit as a transaction road side unit;

otherwise, determining the second road side unit corresponding to the preset second confidence coefficient larger than the preset first confidence coefficient as the transaction road side unit.

Optionally, in still another possible implementation manner of the first aspect, before the determining whether the preset first confidence coefficient is greater than each preset second confidence coefficient, the method further includes:

Acquiring second road positioning information of a target vehicle-mounted unit determined by a second road side unit, wherein the second road positioning information is positioning information under a lane coordinate system corresponding to the second road side unit;

and determining that the second vehicle track positioning information is in a preset fault tolerance range corresponding to the first vehicle track positioning information.

and when the second vehicle lane positioning information is not in the preset fault tolerance range corresponding to the first vehicle lane positioning information, the first vehicle lane positioning information and each second vehicle lane positioning information are redetermined.

Optionally, in another possible implementation manner of the first aspect, determining the transaction roadside unit according to the preset first confidence level of the first roadside unit on the first reference positioning information includes:

determining that only the first road side unit requests a transaction from the target vehicle-mounted unit;

judging whether the preset first confidence coefficient is larger than a preset confidence coefficient threshold value or not;

if yes, the first road side unit is determined to be the transaction road side unit.

Optionally, in a further possible implementation manner of the first aspect, before determining the transaction roadside unit according to the preset first confidence level of the first roadside unit on the first reference positioning information, the method further includes;

Acquiring preset reference positioning information of a reference vehicle-mounted unit;

respectively determining the confidence coefficient of each road side unit to preset reference positioning information;

and changing preset reference positioning information of the reference vehicle-mounted unit, and redetermining the confidence level of each road side unit on the preset reference positioning information so as to determine the confidence level of each road side unit on all the reference positioning information.

Optionally, in still another possible implementation manner of the first aspect, the determining a confidence level of each roadside unit to preset reference positioning information includes:

acquiring third lane positioning information of a reference vehicle-mounted unit determined by each road side unit, wherein the third lane positioning information is positioning information under a lane coordinate system corresponding to the corresponding road side unit;

converting the positioning information of each third lane into a preset reference coordinate system, and determining corresponding second reference positioning information;

and respectively determining the confidence coefficient of each road side unit to the preset reference positioning information according to each second reference positioning information and the preset reference positioning information.

Optionally, in another possible implementation manner of the first aspect, the second reference positioning information determined by each roadside unit includes a plurality of second reference positioning information, and the determining, according to each second reference positioning information and the preset reference positioning information, a confidence level of each roadside unit to the preset reference positioning information includes:

Determining a confidence number for any road side unit, wherein the confidence number refers to the number of the second reference positioning information in a preset fault tolerance range corresponding to the preset reference positioning information;

and determining the ratio of the confidence number to the total number of the reference positioning information corresponding to any road side unit as the confidence level of the road side unit on the preset reference positioning information.

Optionally, in still another possible implementation manner of the first aspect, the acquiring the first lane positioning information of the target vehicle-mounted unit determined by the first road side unit includes:

establishing communication between the first road side unit and the target vehicle-mounted unit through a special short-range communication protocol;

after communication is established, receiving special short-range communication data sent by a target vehicle-mounted unit through a first road side unit;

and determining the first lane positioning information of the target vehicle-mounted unit according to the special short-range communication data sent by the target vehicle-mounted unit.

Optionally, in still another possible implementation manner of the first aspect, the dedicated short-range communication data sent by the target on-board unit includes a vehicle service table signal, and after the communication is established, the receiving, by the first roadside unit, the dedicated short-range communication data sent by the target on-board unit includes:

And broadcasting the beacon service list signal through the first road side unit so that the target vehicle-mounted unit returns the vehicle service list signal to the first road side unit when receiving the beacon service list signal.

A second aspect of an embodiment of the present application provides an electronic transaction device, including:

the positioning acquisition module is used for acquiring first lane positioning information of the target vehicle-mounted unit determined by the first road side unit, wherein the first road side unit refers to any road side unit requesting transaction to the target vehicle-mounted unit, and the first lane positioning information is positioning information under a lane coordinate system corresponding to the first road side unit;

the coordinate conversion module is used for converting the first lane positioning information into a preset reference coordinate system and determining first reference positioning information;

the transaction determination module is used for determining a transaction road side unit according to a preset first confidence coefficient of the first road side unit on the first reference positioning information, wherein the transaction road side unit is used for carrying out electronic transaction with the target vehicle-mounted unit.

A third aspect of an embodiment of the present application provides a terminal device, including: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the electronic transaction method of the first aspect described above when executing the computer program.

A fourth aspect of an embodiment of the present application provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the electronic transaction method of the first aspect.

A fifth aspect of an embodiment of the application provides a computer program product for causing a terminal device to carry out the electronic transaction method of the first aspect described above when the computer program product is run on the terminal device.

Compared with the prior art, the embodiment of the application has the beneficial effects that: when the first road side unit determines the lane positioning information of the vehicle-mounted unit, the confidence degree judgment is carried out on the position of the vehicle-mounted unit, so that whether the first road side unit is used as the road side unit of the final transaction is selected, the situation that the road side units of other lanes are transacted with the target vehicle-mounted unit due to abnormal positioning caused by signal interference can be avoided, and the accuracy of electronic transaction is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flow chart of an electronic transaction method according to an embodiment of the application;

fig. 2 is a flow chart of an electronic transaction method according to a second embodiment of the application;

fig. 3 is a schematic diagram of an application scenario of an electronic transaction method according to an embodiment of the present application;

fig. 4 is a schematic diagram of an application scenario of another electronic transaction method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an electronic transaction device according to a third embodiment of the present application;

fig. 6 is a schematic structural diagram of a terminal device according to a fourth embodiment of the present application.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".

Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

It should be understood that, the sequence number of each step in this embodiment does not mean the execution sequence, and the execution sequence of each process should be determined by its function and internal logic, and should not limit the implementation process of the embodiment of the present application in any way.

In the related art, the road side unit in the ETC system has a positioning function, can acquire the position of the vehicle-mounted unit in real time, controls the microwave beam to track the vehicle-mounted unit, completes electronic transaction on the basis, and improves the transaction success rate of the ETC system. However, because the iron materials such as the light shield, the indication board, the toll booth and the like are arranged near the toll gate, reflection, refraction and the like of signals are very easy to cause, the signals of the lane are reflected and refracted to the adjacent lanes, the transaction of the adjacent lanes is caused, and finally the electronic transaction is failed.

In view of this, the embodiment of the application provides an electronic transaction method, a device, a terminal device and a storage medium, and the method determines the confidence level of the position of a vehicle-mounted unit when the first road side unit determines the lane positioning information of the vehicle-mounted unit, so as to select whether the first road side unit is used as the road side unit of the final transaction, thereby avoiding the situation that the positioning abnormality occurs due to signal interference, and further, the road side units of other lanes transact with the target vehicle-mounted unit, and improving the accuracy of the electronic transaction.

In order to illustrate the technical scheme of the application, the following description is given by specific examples.

Referring to fig. 1, a flow chart of an electronic transaction method according to a first embodiment of the present application is shown. As shown in fig. 1, the electronic transaction method may include the steps of:

step 101, obtaining first lane positioning information of a target vehicle-mounted unit determined by a first road side unit.

The first road side unit refers to any road side unit which requests a transaction from the target vehicle-mounted unit.

It should be noted that the ETC system includes a plurality of road side units, and at least one road side unit is disposed on each ETC lane. The road side unit which requests the transaction from the target vehicle-mounted unit at the earliest time can be determined to be the first road side unit according to the sequence of the requests of the road side units.

The first lane positioning information is positioning information under a lane coordinate system corresponding to the first road side unit.

It should be noted that, each road side unit corresponds to a lane coordinate system, and the lane coordinate system may be a two-dimensional coordinate system constructed with the road side unit as a center, the direction perpendicular to the lane as an X-axis, and the lane direction as a Y-axis. The road side unit acquires the lane positioning information of the target vehicle-mounted unit, requests the vehicle-mounted unit for transaction when the lane positioning information of the target vehicle-mounted unit is in the corresponding lane, and does not request the vehicle-mounted unit for transaction if the lane positioning information of the target vehicle-mounted unit determined by the road side unit is not in the corresponding lane.

In the embodiment of the application, the first road side unit and the target vehicle-mounted unit can be communicated with each other through a special short-range communication (Dedicated Short Range Communication, DSRC) protocol, wherein the DSRC protocol refers to a wireless communication technology and is responsible for establishing bidirectional transmission of information between a vehicle and a road and supporting public safety and private operation. The DSRC protocol can provide high-speed data transmission and can ensure low latency of a communication link and reliability of a system. And after the communication is established, receiving the special short-range communication data sent by the target vehicle-mounted unit through the first road side unit. And finally, determining the first lane positioning information of the target vehicle-mounted unit according to the special short-range communication data sent by the target vehicle-mounted unit.

As one possible implementation manner, the dedicated short-range communication data sent by the target on-board unit includes a vehicle service table (Vehicle Service Table, VST) signal, where after the communication is established, receiving, by the first roadside unit, the dedicated short-range communication data sent by the target on-board unit may include: a beacon service table (Beacon Service Table, BST) signal is broadcast by the first road side unit such that the target on-board unit returns a vehicle service table signal to the first road side unit upon receipt of the beacon service table signal.

Specifically, the first road side unit may periodically transmit a downlink BST signal, and when a vehicle with the vehicle-mounted unit is driven into the ETC transaction area, the BST signal is received, and the VST signal is returned. The VST signal includes a unique identifier of the on-board unit, where the unique identifier may be any identifier that can distinguish between different on-board units, such as a media access control (Media Access Control, MAC) address, a contract serial number, etc., and the embodiment of the present application does not limit the type of unique identifier. After the first road side unit receives the VST signal, lane positioning information of the vehicle-mounted unit may be calculated according to its own positioning algorithm, for example, a DOA (Direction of arrival ) estimation algorithm, and the vehicle-mounted unit may be further associated with the calculated lane positioning information based on the unique identifier of the vehicle-mounted unit. After the first road side unit receives the uplink DSRC data frame, different vehicle-mounted units can be distinguished through the unique identification. The first road side unit sends the downlink data frames of different vehicle-mounted units, and unique identifiers corresponding to the vehicle-mounted units are used as special link identifiers of the downlink data frames. The following steps may be continued when the on-board unit receives a downlink data frame having the same unique link identification as its own unique identification.

Step 102, converting the first lane positioning information to a preset reference coordinate system, and determining the first reference positioning information.

The preset reference coordinate system may be a lane coordinate system corresponding to any road side unit, or may be a two-dimensional coordinate system preset in combination with an actual application scene, which is not limited in the present application.

Specifically, the conversion relation between the lane coordinate system corresponding to the first road side unit and the preset reference coordinate system can be determined, for example, the conversion relation can be determined through operations such as rotation, translation, scaling and the like, and then the first lane positioning information can be converted based on the conversion relation to obtain the first reference positioning information.

Step 103, determining a transaction road side unit according to a preset first confidence coefficient of the first road side unit on the first reference positioning information.

The transaction road side unit is used for carrying out electronic transaction with the target vehicle-mounted unit.

It should be noted that, due to signal reflection, refraction, etc., the signal of the current lane may be reflected and refracted to the adjacent lane. For example, the target on-board unit operates at the (0, 8) position of the lane coordinate system corresponding to the road side unit a, and it is assumed that the lane coordinate system corresponding to the road side unit a is the preset reference coordinate system, that is, the lane positioning information of the target on-board unit determined by the road side unit a should also be the (0, 8) position, but the target on-board unit which is supposed to be transacted by the road side unit a does not transact with the road side unit a due to signal reflection, and the road side unit B of the adjacent lane at this time calculates the lane positioning information of the target on-board unit to be the (0, 8) position, that is, the (-4, 8) position of the lane coordinate system corresponding to the road side unit a, so that the road side unit B establishes a transaction with the target on-board unit, thereby causing the electronic transaction failure.

Thus, as a possible implementation manner of the present application, the transaction roadside unit may be determined in the first roadside unit and each of the second roadside units according to the preset first confidence level and the preset second confidence level of the at least one second roadside unit for the first reference positioning information, where the second roadside unit refers to a roadside unit that requests a transaction from the target vehicle-mounted unit in addition to the first roadside unit. Thus, by combining the confidence degree of each road side unit to the first reference positioning information in advance, and further determining the road side unit with higher confidence degree to the position as the transaction road side unit, wherein the confidence degree refers to the confidence degree or reliability measure for observation, deduction or prediction, and the higher the confidence degree of the road side unit to a certain position, the more likely the road side unit is a transaction object of the vehicle-mounted unit at the position.

Specifically, whether the preset first confidence coefficient is larger than each preset second confidence coefficient can be judged first, if yes, the first road side unit is determined to be the transaction road side unit; otherwise, determining the second road side unit corresponding to the preset second confidence coefficient larger than the preset first confidence coefficient as the transaction road side unit.

Further, because interference of factors such as positioning accuracy may occur to affect accuracy of electronic transaction, by setting a preset fault tolerance range, and determining whether the second vehicle positioning information is within the preset fault tolerance range corresponding to the first vehicle positioning information, where the second vehicle positioning information is positioning information under the lane coordinate system corresponding to the second road side unit, if so, then executing the step of determining the subsequent confidence level, that is, as a possible implementation manner of the embodiment of the present application, before determining whether the preset first confidence level is greater than each preset second confidence level, the method may further include: acquiring second road positioning information of a target vehicle-mounted unit determined by a second road side unit; and determining that the second vehicle track positioning information is in a preset fault tolerance range corresponding to the first vehicle track positioning information. It should be understood that the preset fault tolerance range may be set in conjunction with an actual application scenario, which is not limited by the present application.

It should be noted that if the second lane positioning information is not within the preset fault tolerance range corresponding to the first lane positioning information, the first lane positioning information and each second lane positioning information may be redetermined. In an actual scene, the position of the target vehicle-mounted unit is changed at any time, so that the first vehicle-mounted unit and the second vehicle-mounted unit can be redetermined after the position of the target vehicle-mounted unit is changed until the second vehicle-mounted unit is positioned in a preset fault tolerance range corresponding to the first vehicle-mounted unit.

As another possible implementation manner of the present application, when the target on-board unit operates in the ETC transaction area, only one road side unit may request a transaction from the target on-board unit, and in this case, in order to improve accuracy of the electronic transaction, a preset confidence threshold may be set, for example, 0.8, and when the preset first confidence of the first road side unit on the first reference positioning information is greater than the value, the reliability of the first road side unit is considered to be higher, and the first road side unit may be determined as the transaction road side unit. Specifically, firstly, determining that only a first road side unit requests a transaction from a target vehicle-mounted unit, then judging whether the preset first confidence coefficient is larger than a preset confidence coefficient threshold value, and if so, determining the first road side unit as a transaction road side unit; otherwise, the transaction is stopped. It should be understood that the specific value of the preset confidence threshold may be set in conjunction with the actual application scenario, which is not limited by the present application.

According to the electronic transaction method disclosed by the embodiment of the application, first lane positioning information of a target vehicle-mounted unit determined by a first road side unit is acquired; then converting the first lane positioning information into a preset reference coordinate system, and determining first reference positioning information; and finally, determining the transaction road side unit according to the preset first confidence coefficient of the first road side unit on the first reference positioning information. Therefore, by judging the confidence coefficient of the position of the vehicle-mounted unit and selecting whether the first road side unit is used as the road side unit of the final transaction, the situation that the road side units of other lanes and the target vehicle-mounted unit are subjected to transaction due to abnormal positioning caused by signal interference can be avoided, and the accuracy of electronic transaction is improved.

In one possible implementation manner of the present application, since the final transaction roadside unit needs to be determined by the confidence level in the foregoing step 103, before practical application, the confidence level of each roadside unit with respect to different positions needs to be determined, by determining preset reference positioning information of the reference vehicle-mounted unit, that is, the actual positioning information under the preset reference coordinate system, then determining the confidence level of each roadside unit with respect to the position based on the preset reference positioning information, finally changing the actual position of the reference vehicle-mounted unit, and repeating the foregoing process, thereby sequentially determining the confidence level of each roadside unit with respect to different positions.

Referring to fig. 2, a flow chart of an electronic transaction method according to a second embodiment of the present application is shown. As shown in fig. 2, the electronic transaction method may include the steps of:

step 201, obtaining first lane positioning information of a target vehicle-mounted unit determined by a first road side unit.

The first road side unit refers to any road side unit requesting transaction to the target vehicle-mounted unit, and the first vehicle positioning information is positioning information under a lane coordinate system corresponding to the first road side unit.

Step 202, converting the first lane positioning information to a preset reference coordinate system, and determining the first reference positioning information.

The specific implementation and principles of the steps 201 to 202 may refer to the detailed description of the embodiments, and are not repeated here.

Step 203, obtaining preset reference positioning information of the reference vehicle-mounted unit.

The preset reference positioning information is positioning information under a preset reference coordinate system, and can be confirmed in a manual checking mode.

Step 204, determining the confidence of each road side unit on the preset reference positioning information.

The confidence level of the road side unit to the position can be determined by acquiring second reference positioning information of the reference vehicle-mounted unit determined by the road side unit and comparing the second reference positioning information.

Specifically, the manner in which the roadside unit determines the second reference positioning information of the reference vehicle-mounted unit is the same as the step in which the first roadside unit determines the first reference positioning information in the foregoing embodiment, that is, as a possible implementation manner of the embodiment of the present application, the step 204 may include: acquiring third lane positioning information of a reference vehicle-mounted unit determined by each road side unit, wherein the third lane positioning information is positioning information under a lane coordinate system corresponding to the corresponding road side unit; converting the positioning information of each third lane into a preset reference coordinate system, and determining corresponding second reference positioning information; and respectively determining the confidence coefficient of each road side unit to the preset reference positioning information according to each second reference positioning information and the preset reference positioning information.

Further, for the same position, each road side unit may perform N times of positioning information calculation, determine a plurality of second reference positioning information, if the error between M times of second reference positioning information calculated by the road side unit and preset reference positioning information of the vehicle-mounted unit is within a preset fault tolerance range, the confidence level of the road side unit on the position corresponding to the preset reference positioning information is M/N, that is, in a possible implementation manner of the present application, the determining, according to each second reference positioning information and the preset reference positioning information, the confidence level of each road side unit on the preset reference positioning information may include: determining a confidence number for any road side unit, wherein the confidence number refers to the number of the second reference positioning information in a preset fault tolerance range corresponding to the preset reference positioning information; and determining the ratio of the confidence number to the total number of the reference positioning information corresponding to any road side unit as the confidence level of the road side unit on the preset reference positioning information.

Step 205, changing the preset reference positioning information of the reference vehicle-mounted unit, and redetermining the confidence level of each road side unit on the preset reference positioning information, thereby determining the confidence level of each road side unit on all the reference positioning information.

The confidence level of each road side unit for all the reference positioning information can be obtained by changing the preset reference positioning information of the reference vehicle-mounted unit and repeating the steps 203-204.

Step 206, determining the transaction road side unit according to the preset first confidence level of the first road side unit on the first reference positioning information.

The specific implementation and principles of step 206 may refer to the detailed description of the embodiments, which is not repeated here.

According to the electronic transaction method disclosed by the embodiment of the application, the confidence coefficient of each road side unit to the position is determined based on the preset reference positioning information by determining the preset reference positioning information of the reference vehicle-mounted unit, namely the actual positioning information under the preset reference coordinate system, and finally the actual position of the reference vehicle-mounted unit is changed, and the above processes are repeated, so that the confidence coefficient of each road side unit relative to different positions can be sequentially determined.

For ease of understanding, the following describes embodiments of the present application in a specific example.

Referring to fig. 3, an application scenario of an electronic transaction method is shown. As shown in fig. 3, the ETC system includes a roadside unit R1, a roadside unit R2, a roadside unit R3, and a roadside unit R4 in different lanes, each of which is side by side and spaced apart by 4m. In the ETC transaction area, there is also an on-board unit O1, which is separated from the side-by-side roadside unit by 8m in linear distance, the preset reference coordinate system is a lane coordinate system corresponding to the lane where the roadside unit R3 is located, and the preset reference positioning information of the on-board unit O1 in the preset reference coordinate system is (0, 8). The preset transaction areas of the four road side units are all transverse (-2 m,2 m) and longitudinal (0 m,8 m), and the preset fault tolerance range comprises a transverse fault tolerance range and a longitudinal fault tolerance range, wherein the transverse fault tolerance range is (0 cm,50 cm), and the longitudinal fault tolerance range is (0 cm,100 cm).

Firstly, the roadside units R1, R2, R3 and R4 all receive DSRC data sent by the vehicle-mounted unit O1, and at this time, the four roadside units can calculate a set of positioning results, namely third lane positioning information by combining the transaction states determined by the preset transaction areas and the lane coordinate systems corresponding to the four roadside units, which is specifically shown in the second column of table 1 below.

TABLE 1

The signal that the vehicle-mounted unit O1 should be received by the road side unit R3 is reflected to the lane of the partition wall and received by the road side unit R2 of the lane of the partition wall due to the influence of the iron materials such as the weighing platform, the light shielding plate, the sentry box and the like in the lane where the vehicle-mounted unit O1 is located, so that the road side unit R2 receives the signal and establishes a transaction link, and further, the vehicle transacted in the lane where the road side unit R3 is located is transacted in the lane where the road side unit R2 is located, and adjacent lane interference is caused.

The actual positions of the road side units in the preset reference coordinate system are respectively determined, and the third column of the table 1 is specifically referred to. And then combining the data of the second column and the third column, and converting the positioning information of each third lane into a preset reference coordinate system to obtain second reference positioning information of the fourth column in the table 1.

The preset reference positioning information of the on-board unit O1 in the preset reference coordinate system is (0, 8), and it can be seen from table 1 that the second reference positioning information (4, 8) determined by the road side unit R2 is abnormal positioning information caused by signal abnormality.

Assuming that R2 is a first road side unit, R3 is a second road side unit, the confidence of the road side unit R2 relative to the preset reference positioning information (0, 8) determined in advance through confidence calculation is 0.5, the confidence of the road side unit R3 relative to the preset reference positioning information (0, 8) is 1, and the confidence of the road side unit R3 is larger, the road side unit R3 should be selected to trade with the vehicle-mounted unit O1.

For another example, when the on-board unit O1 is running on the lane where the road side unit R4 is located, the position of the on-board unit O1 under the preset reference coordinate system is (-4, 8), and if there is no reflection influence, the lane positioning information corresponding to the road side unit R3 should be (-4, 8), but at this time, due to reflection, the lane positioning information corresponding to the road side unit R3 is (0, 8), and at this time, the confidence of the road side unit R3 relative to the reference positioning information (0, 8) is obtained by the query to be 0.5, and the confidence of the road side unit R4 relative to the reference positioning information (0, 8) is 1, then the road side unit R4 should be selected to conduct the transaction with the on-board unit O1.

In a more preferred scheme on this basis, when the vehicle-mounted unit O1 runs to the (0, 8) position (i.e. the position in the preset reference coordinate system) in the lane coordinate system corresponding to the road-side unit R3, if the lane positioning information obtained by positioning the road-side unit R2 for the vehicle-mounted unit is (0, 8), since the confidence of the position of the road-side unit R2 for the (0, 8) in the preset reference coordinate system is 0.5, the lane positioning information (0, 7) of the road-side unit R3 for the vehicle-mounted unit O1 and the confidence of the position of the road-side unit R3 for the (0, 8) in the preset reference coordinate system are further obtained. At this time, the abscissa is 0, and the ordinate is within the longitudinal fault tolerance range (0 cm,100 cm), the lane positioning information of the road side unit R3 is considered to be within the preset fault tolerance range corresponding to the lane positioning information of the road side unit R2, and the confidence judgment is continued, and the confidence 1 of the road side unit R3 is greater than the confidence 0.5 of the road side unit R2, so that the road side unit R3 is determined as a transaction road side unit, and the transaction is performed with the vehicle-mounted unit O1.

The technical scheme takes four road side units in different lanes as an example, and specifically describes an electronic transaction method based on the scene. As another possible implementation manner of the application, at least two road side units are arranged in each lane, when the vehicle-mounted unit runs in the transaction area of the front road side unit and the transaction road side unit cannot be accurately selected all the time based on the confidence judgment logic, and then the vehicle-mounted unit leaves the transaction area of the front road side unit, the transaction road side unit can be determined from the rear road side unit again by utilizing the confidence judgment logic, so that the transaction success rate of the lane is improved.

In the following, another possible implementation of the embodiment of the present application is described with a specific example (more practical application scenarios are possible) in which two road side units are provided on different lanes.

Referring to fig. 4, an application scenario of another electronic transaction method is shown. As shown in fig. 4, the ETC system includes a roadside unit R11, a roadside unit R12, a roadside unit R21, a roadside unit R22, a roadside unit R31, and a roadside unit R32. Wherein the road side unit R11 and the road side unit R12 are in the same lane, the road side unit R21 and the road side unit R22 are in the same lane, and the road side unit R31 and the road side unit R32 are in the same lane; the road side unit R11, the road side unit R21 and the road side unit R31 are front side by side road side units, and the road side unit R12, the road side unit R22 and the road side unit R32 are rear side by side road side units; the side-by-side road side units are all spaced by 4m, and the front and rear road side units are all spaced by 6m. In ETC transaction area there is also an on-board unit O2, the first location of on-board unit O2 is 12m from the linear distance of the rear road side unit, and the second location of on-board unit O2 is 5m from the linear distance of the rear road side unit. The preset reference coordinate system is a lane coordinate system corresponding to the road side unit R22, the preset reference positioning information of the first position of the vehicle-mounted unit O2 under the preset reference coordinate system is (0, 12), and the preset reference positioning information of the second position of the vehicle-mounted unit O2 under the preset reference coordinate system is (0, 5). The preset transaction areas of the six road side units are all transverse (-2 m,2 m) and longitudinal (0 m,8 m), the preset fault tolerance range comprises a transverse fault tolerance range and a longitudinal fault tolerance range, the transverse fault tolerance range is (0 cm,50 cm), and the longitudinal fault tolerance range is (0 cm,100 cm).

Firstly, the road side unit R11, the road side unit R21 and the road side unit R31 all receive DSRC data sent by the first position of the vehicle-mounted unit O2, and at this time, each road side unit of the front row can calculate a set of positioning results, namely third lane positioning information by combining the transaction state determined by the preset transaction area of each road side unit of the front row and the corresponding lane coordinate system, and the second column of the following table 2 is specifically referred to.

TABLE 2

The signal that the lane where the first position of the vehicle-mounted unit O2 is located should be received by the road side unit R21 is reflected to the partition lane and is received by the road side unit R11 of the partition lane due to the influence of the iron materials such as the weighing platform, the light shielding plate, and the sentry box in the lane where the first position of the vehicle-mounted unit O2 is located, so that interference occurs, but the vehicle-mounted unit always cannot accurately select the transaction road side unit in the transaction area of the front road side unit, so that the vehicle-mounted unit drives away from the communication area of the front road side unit, and therefore, the transaction road side unit needs to be further selected from the rear road side units.

When the on-board unit travels to the second position of the on-board unit O2, due to the signal effect, the signal that should be received by the roadside unit R22 is reflected to the lane of the partition and is received by the roadside unit R12 of the lane of the partition, resulting in the roadside unit R12 receiving the signal and establishing a transaction link, and further resulting in the vehicle that is transacted in the lane where the roadside unit R22 is transacted in the lane where the roadside unit R12 is located, causing adjacent lane interference.

First, third lane positioning information of each road side unit of the rear row is determined as shown in the second column of table 3 below. The actual positions of the road side units of the rear row under the preset reference coordinate system are then respectively determined, and the third column of the table 3 is specifically referred to below. And then combining the data of the second column and the third column, and converting the positioning information of each third lane into a preset reference coordinate system to obtain second reference positioning information of the fourth column in the table 3.

TABLE 3 Table 3

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The preset reference positioning information of the second position of the on-board unit O2 in the preset reference coordinate system is (0, 5), and it can be seen from table 3 that the second reference positioning information (4, 5) determined by the road side unit R12 is abnormal positioning information caused by signal abnormality.

Assuming that R12 is a first road side unit, R22 is a second road side unit, the confidence of the road side unit R12 relative to the preset reference positioning information (0, 5) determined in advance through confidence calculation is 0.5, the confidence of the road side unit R22 relative to the preset reference positioning information (0, 5) is 1, and the confidence of the road side unit R22 is larger, the road side unit R22 should be selected to trade with the vehicle-mounted unit O2.

For another example, when the on-board unit O2 is running on the lane where the road side unit R32 is located, i.e., the position (-4, 5) under the preset reference coordinate system, if there is no reflection influence, the lane positioning information corresponding to the road side unit R22 should be (-4, 5), but the result of positioning the road side unit R22 due to reflection is (0, 5), at this time, the confidence of the road side unit R22 relative to the reference positioning information (0, 5) is obtained by querying, and the confidence of the road side unit R32 relative to the reference positioning information (0, 5) is 1, then the road side unit R32 should be selected to conduct the transaction with the on-board unit O2.

In a more preferred scheme on this basis, when the vehicle-mounted unit O2 travels to the (0, 5) position of the lane where the road-side unit R22 is located, if the lane positioning information obtained by the road-side unit R12 for the vehicle-mounted unit is (0, 5), since the confidence of the position of the road-side unit R12 for the (0, 5) position in the preset reference coordinate system is 0.5, the lane positioning information of the road-side unit R22 for the vehicle-mounted unit O2 is further obtained, assuming that the position is (0.1, 4.5), and the confidence of the position of the road-side unit R22 for the (0, 5) position in the preset reference coordinate system is 1. At this time, the lane positioning information (0.1, 4.5) of the road side unit R22 for the second position of the vehicle-mounted unit O2 is within the horizontal fault tolerance range (0 cm,50 cm) and the vertical fault tolerance range (0 cm,100 cm) compared with (0, 5), so that the lane positioning information of the road side unit R22 is considered to be within the preset fault tolerance range corresponding to the lane positioning information of the road side unit R12, and the confidence level judgment is continued, and since the confidence level 1 of R22 is greater than the confidence level 0.5 of the road side unit R12, the road side unit R22 is determined as the transaction road side unit, and the transaction is performed with the vehicle-mounted unit O2.

The two examples are used for determining the confidence coefficient of each road side unit relative to each reference positioning information by carrying out data fitting on the positioning results of a plurality of road side units, and determining the transaction road side units according to the confidence coefficient, so that the problems of adjacent channel interference or vehicle following interference caused by signal interference can be effectively solved.

Referring to fig. 5, a schematic structural diagram of an electronic transaction device according to a third embodiment of the present application is shown, and for convenience of explanation, only a portion related to the embodiment of the present application is shown.

The electronic transaction device may specifically include the following modules:

the positioning obtaining module 501 is configured to obtain first lane positioning information of the target vehicle-mounted unit determined by the first road side unit, where the first road side unit refers to any road side unit that requests a transaction from the target vehicle-mounted unit, and the first lane positioning information is positioning information under a lane coordinate system corresponding to the first road side unit.

The coordinate conversion module 502 is configured to convert the first lane positioning information to a preset reference coordinate system, and determine first reference positioning information.

The transaction determining module 503 is configured to determine a transaction roadside unit according to a preset first confidence level of the first roadside unit for the first reference positioning information, where the transaction roadside unit is configured to perform an electronic transaction with the target vehicle-mounted unit.

The electronic transaction device disclosed in the above embodiment of the present application first obtains first lane positioning information of the target vehicle-mounted unit determined by the first road side unit. And then converting the first lane positioning information into a preset reference coordinate system to determine first reference positioning information. And finally, determining the transaction road side unit according to the preset first confidence coefficient of the first road side unit on the first reference positioning information. Therefore, by judging the confidence coefficient of the position of the vehicle-mounted unit and selecting whether the first road side unit is used as the road side unit of the final transaction, the situation that the road side units of other lanes and the target vehicle-mounted unit are subjected to transaction due to abnormal positioning caused by signal interference can be avoided, and the accuracy of electronic transaction is improved.

In a third possible implementation manner of the present application, the transaction determining module 503 may specifically include the following sub-modules:

the first determining sub-module is configured to determine a transaction roadside unit in the first roadside unit and each second roadside unit according to a preset first confidence coefficient and a preset second confidence coefficient of at least one second roadside unit for the first reference positioning information, where the second roadside unit is a roadside unit that requests a transaction from the target vehicle-mounted unit in addition to the first roadside unit.

Further, in another possible implementation manner of the third embodiment of the present application, the first determining submodule may specifically include the following units:

the first judging unit is used for judging whether the preset first confidence coefficient is larger than each preset second confidence coefficient.

And the first execution unit is used for determining the first road side unit as a transaction road side unit if the first road side unit is the transaction road side unit.

And the second execution unit is used for determining a second road side unit corresponding to a preset second confidence coefficient which is larger than the preset first confidence coefficient as a transaction road side unit if not.

Further, in another possible implementation manner of the third embodiment of the present application, the first determining submodule may specifically further include the following units:

The first acquisition unit is used for acquiring second road positioning information of the target vehicle-mounted unit determined by the second road side unit, wherein the second road positioning information is positioning information of the second road side unit under a corresponding lane coordinate system.

The first determining unit is used for determining that the second vehicle track positioning information is in a preset fault tolerance range corresponding to the first vehicle track positioning information.

Further, in still another possible implementation manner of the third embodiment of the present application, the first determining submodule may specifically further include the following units:

the second determining unit is used for re-determining the first lane positioning information and each second lane positioning information when the second lane positioning information is not in the preset fault tolerance range corresponding to the first lane positioning information.

Further, in another possible implementation manner of the third embodiment of the present application, the transaction determining module 503 may specifically include the following sub-modules:

a second determination sub-module for determining that only the first road side unit requests a transaction from the target on-board unit.

The first judging sub-module is used for judging whether the preset first confidence coefficient is larger than a preset confidence coefficient threshold value.

And the first execution sub-module is used for determining the first road side unit as a transaction road side unit if the first execution sub-module is used for determining the first road side unit as the transaction road side unit.

Further, in still another possible implementation manner of the third embodiment of the present application, the electronic transaction device may specifically further include the following modules:

the first acquisition module is used for acquiring preset reference positioning information of the reference vehicle-mounted unit.

The first determining module is used for determining the confidence coefficient of each road side unit to the preset reference positioning information respectively.

The second determining module is used for changing the preset reference positioning information of the reference vehicle-mounted unit and redetermining the confidence level of each road side unit on the preset reference positioning information so as to determine the confidence level of each road side unit on all the reference positioning information.

Further, in another possible implementation manner of the third embodiment of the present application, the first determining module may specifically include the following sub-modules:

the first acquisition sub-module is used for acquiring third lane positioning information of the reference vehicle-mounted unit determined by each road side unit, wherein the third lane positioning information is positioning information under a lane coordinate system corresponding to the corresponding road side unit.

And the third determining sub-module is used for converting each third lane positioning information into a preset reference coordinate system and determining corresponding second reference positioning information.

And the fourth determining submodule is used for respectively determining the confidence coefficient of each road side unit to the preset reference positioning information according to each second reference positioning information and the preset reference positioning information.

Further, in still another possible implementation manner of the third embodiment of the present application, the second reference positioning information determined by each roadside unit includes a plurality of second reference positioning information, and the fourth determining submodule may specifically include the following units:

the third determining unit is configured to determine, for any one of the road side units, a confidence number, where the confidence number is the number of the second reference positioning information in a preset fault tolerance range corresponding to the preset reference positioning information.

And the fourth determining unit is used for determining the ratio of the confidence number to the total number of the reference positioning information corresponding to any road side unit as the confidence degree of the road side unit on the preset reference positioning information.

Further, in still another possible implementation manner of the third embodiment of the present application, the positioning obtaining module 501 may specifically include a sub-module,

and the second execution sub-module is used for establishing communication between the first road side unit and the target vehicle-mounted unit through a special short-range communication protocol.

And the first receiving sub-module is used for receiving the special short-range communication data sent by the target vehicle-mounted unit through the first road side unit after the communication is established.

And the fifth determining sub-module is used for determining the first lane positioning information of the target vehicle-mounted unit according to the special short-range communication data sent by the target vehicle-mounted unit.

Further, in another possible implementation manner of the third embodiment of the present application, the dedicated short-range communication data sent by the target on-board unit includes a vehicle service table signal, and the first receiving submodule may specifically include the following units:

and the third execution sub-module is used for broadcasting the beacon service table signal through the first road side unit so that the target vehicle-mounted unit returns the vehicle service table signal to the first road side unit when receiving the beacon service table signal.

According to the electronic transaction device disclosed by the embodiment of the application, the confidence coefficient of each road side unit to the position is determined based on the preset reference positioning information by determining the preset reference positioning information of the reference vehicle-mounted unit, namely the actual positioning information under the preset reference coordinate system, and finally the actual position of the reference vehicle-mounted unit is changed, and the above processes are repeated, so that the confidence coefficient of each road side unit relative to different positions can be sequentially determined.

The electronic transaction device provided in the embodiment of the present application may be applied to the foregoing method embodiment, and details of the details refer to descriptions of the foregoing method embodiment, which are not repeated herein.

Fig. 6 is a schematic structural diagram of a terminal device according to a fourth embodiment of the present application. As shown in fig. 6, the terminal device 600 of this embodiment includes: at least one processor 610 (only one shown in fig. 6), a memory 620, and a computer program 621 stored in the memory 620 and executable on the at least one processor 610, the steps in the above-described electronic transaction method embodiments being implemented when the processor 610 executes the computer program 621.

The terminal device 600 may be a computing device such as a desktop computer, a notebook computer, a palm computer, and a cloud server. The terminal device may include, but is not limited to, a processor 610, a memory 620. It will be appreciated by those skilled in the art that fig. 6 is merely an example of a terminal device 600 and is not limiting of the terminal device 600, and may include more or fewer components than shown, or may combine certain components, or different components, such as may also include input-output devices, network access devices, etc.

The processor 610 may be a central processing unit (Central Processing Unit, CPU), the processor 610 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 620 may in some embodiments be an internal storage unit of the terminal device 600, such as a hard disk or a memory of the terminal device 600. The memory 620 may also be an external storage device of the terminal device 600 in other embodiments, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the terminal device 600. Further, the memory 620 may also include both an internal storage unit and an external storage device of the terminal device 600. The memory 620 is used to store an operating system, application programs, boot Loader (Boot Loader), data, and other programs, such as program code of the computer program. The memory 620 may also be used to temporarily store data that has been output or is to be output.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other manners. For example, the apparatus/terminal device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

The present application may also be implemented by a computer program product for implementing all or part of the steps of the above embodiments of the method, when the computer program product is run on a terminal device, for enabling the terminal device to execute the steps of the above embodiments of the method.

The above embodiments are only for illustrating the technical solution of the present application, and are not limited thereto. Although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. A method of electronic transaction, comprising:

acquiring first lane positioning information of a target vehicle-mounted unit determined by a first lane side unit, wherein the first lane side unit refers to any lane side unit requesting transaction from the target vehicle-mounted unit, and the first lane positioning information is positioning information under a lane coordinate system corresponding to the first lane side unit;

Converting the first lane positioning information into a preset reference coordinate system, and determining first reference positioning information;

and determining a transaction road side unit according to a preset first confidence coefficient of the first road side unit on the first reference positioning information, wherein the transaction road side unit is used for carrying out electronic transaction with the target vehicle-mounted unit.

2. The electronic transaction method according to claim 1, wherein the determining a transaction roadside unit according to a preset first confidence level of the first roadside unit for the first reference location information includes:

determining a transaction road side unit in the first road side unit and each second road side unit according to the preset first confidence and the preset second confidence of at least one second road side unit on the first reference positioning information, wherein the second road side unit refers to a road side unit which requests transaction from the target vehicle-mounted unit except the first road side unit.

3. The electronic transaction method according to claim 2, wherein determining transaction roadside units among the first roadside unit and each of the second roadside units based on the preset first confidence level and a preset second confidence level of the first reference positioning information by at least one second roadside unit comprises:

if yes, determining the first road side unit as the transaction road side unit;

otherwise, determining a second road side unit corresponding to the preset second confidence coefficient which is larger than the preset first confidence coefficient as the transaction road side unit.

4. The electronic transaction method according to claim 3, wherein before said determining whether said preset first confidence level is greater than each of said preset second confidence levels, further comprising:

5. The electronic transaction method according to claim 4, wherein before determining whether the preset first confidence level is greater than each of the preset second confidence levels, further comprising:

and when the second vehicle lane positioning information is not in the preset fault tolerance range corresponding to the first vehicle lane positioning information, the first vehicle lane positioning information and the second vehicle lane positioning information are redetermined.

6. The electronic transaction method according to claim 1, wherein the determining a transaction roadside unit according to a preset first confidence level of the first roadside unit for the first reference location information includes:

determining that only the first road side unit requests a transaction from the target on-board unit;

7. The electronic transaction method according to claim 1, wherein the determining of the transaction roadside unit is preceded by determining a preset first confidence level of the first roadside unit for the first reference location information;

respectively determining the confidence coefficient of each road side unit to the preset reference positioning information;

and changing preset reference positioning information of the reference vehicle-mounted unit, and redetermining the confidence coefficient of each road side unit to the preset reference positioning information so as to determine the confidence coefficient of each road side unit to all the reference positioning information.

8. The electronic transaction method according to claim 7, wherein the determining the confidence level of each of the roadside units for the preset reference location information includes:

Acquiring third lane positioning information of the reference vehicle-mounted unit determined by each road side unit, wherein the third lane positioning information is positioning information under a lane coordinate system corresponding to the corresponding road side unit;

converting each third lane positioning information into the preset reference coordinate system, and determining corresponding second reference positioning information;

and respectively determining the confidence degree of each road side unit on the preset reference positioning information according to each second reference positioning information and the preset reference positioning information.

9. The electronic transaction method according to claim 8, wherein the second reference positioning information determined by each of the roadside units includes a plurality of pieces, and the determining the confidence level of each of the roadside units for the preset reference positioning information according to each of the second reference positioning information and the preset reference positioning information includes:

and determining the ratio of the confidence number to the total number of the reference positioning information corresponding to any road side unit as the confidence degree of the road side unit on the preset reference positioning information.

10. An electronic transaction device, comprising:

the positioning acquisition module is used for acquiring first lane positioning information of a target vehicle-mounted unit determined by a first road side unit, wherein the first road side unit refers to any road side unit requesting transaction to the target vehicle-mounted unit, and the first lane positioning information is positioning information under a lane coordinate system corresponding to the first road side unit;

11. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1 to 9 when executing the computer program.

12. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the method according to any one of claims 1 to 9.