CN110896520B - Path identification method and system, road side identification equipment and vehicle-mounted equipment - Google Patents

Path identification method and system, road side identification equipment and vehicle-mounted equipment Download PDF

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CN110896520B
CN110896520B CN201811060431.1A CN201811060431A CN110896520B CN 110896520 B CN110896520 B CN 110896520B CN 201811060431 A CN201811060431 A CN 201811060431A CN 110896520 B CN110896520 B CN 110896520B
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path
vehicle
path number
identification
mounted equipment
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CN110896520A (en
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邱新豪
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Beijing Juli Science and Technology Co Ltd
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Beijing Juli Science and Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

The invention provides a path identification method and system, road side identification equipment and vehicle-mounted equipment. The method comprises the following steps: the method comprises the steps of obtaining a first path number currently recorded by the vehicle-mounted equipment, wherein the first path number uniquely indicates a first path in a preset geographic range; judging whether the current position is matched with the first path; if the current position is not matched with the first path, determining a second path number, wherein the second path number uniquely indicates a second path in the preset geographic range, and the second path is matched with a driving path of a vehicle to which the vehicle-mounted equipment belongs; and sending the second path number to the vehicle-mounted equipment so that the vehicle-mounted equipment replaces the first path number with the second path number. The method can solve the problems of low path identification efficiency and low settlement efficiency caused by the low path identification efficiency in the prior art to a certain extent.

Description

Path identification method and system, road side identification equipment and vehicle-mounted equipment
Technical Field
The invention relates to an intelligent traffic technology, in particular to a path identification method and system, roadside identification equipment and vehicle-mounted equipment.
Background
In the case of a toll road system, the amount of toll should be determined according to the traveling route of a vehicle, and therefore, it is important how to recognize a route in the toll road network.
In the existing intelligent transportation technology, an identification station (also called Road Side identification device, Road Side Unit, RSU) is generally set on a Road section, when a vehicle passes through the identification station, the Road Side identification device can communicate with vehicle-mounted devices in the vehicle, and send identification station information to the vehicle-mounted devices in a communication manner, and the vehicle-mounted devices record the identification station information. Therefore, when the vehicle settles at the exit Toll station, the vehicle-mounted equipment uploads the identification station information to an Electronic Toll Collection (ETC), and the ETC can determine the driving path of the vehicle according to the uploaded identification station information.
In the existing path recognition scheme, all identification station information in the whole driving path can be stored in vehicle-mounted equipment of a vehicle, so that the data volume uploaded to an ETC by the vehicle-mounted equipment is large, the uploading speed is low, the settlement efficiency is low, and further road traffic jam can be caused.
Disclosure of Invention
The invention provides a path identification method and system, road side identification equipment and vehicle-mounted equipment, which are used for solving the problems of low path identification efficiency and low settlement efficiency caused by the low path identification efficiency in the prior art.
In a first aspect, the present invention provides a path identification method, including:
the method comprises the steps of obtaining a first path number currently recorded by the vehicle-mounted equipment, wherein the first path number uniquely indicates a first path in a preset geographic range;
judging whether the current position is matched with the first path;
if the current position is not matched with the first path, determining a second path number, wherein the second path number uniquely indicates a second path in the preset geographic range, and the second path is matched with a driving path of a vehicle to which the vehicle-mounted equipment belongs;
and sending the second path number to the vehicle-mounted equipment so that the vehicle-mounted equipment replaces the first path number with the second path number.
In a second aspect, the present invention provides a path identification method, including:
receiving a second path number sent by road side identification equipment, wherein the second path number uniquely indicates a second path within a preset geographic range, and the second path is matched with the current driving path of the second path;
and replacing the currently recorded first path number with the second path number, wherein the first path number uniquely indicates a first path within the preset geographic range, and the first path is not matched with the current position.
In a third aspect, the present invention provides a roadside marking device, including:
the acquisition module is used for acquiring a first path number currently recorded by the vehicle-mounted equipment;
the judging module is used for judging whether the current position is matched with a first path, wherein the first path is a path which is uniquely indicated in a preset geographical range by the first path number;
the determining module is used for determining a second path number if the current position is not matched with the first path, wherein the second path number uniquely indicates a second path within the preset geographic range, and the second path is matched with the current position and a driving path of a vehicle to which the vehicle-mounted equipment belongs;
and the sending module is used for sending the second path number to the vehicle-mounted equipment so that the vehicle-mounted equipment replaces the first path number with the second path number.
In a fourth aspect, the present invention provides a roadside marking device, including:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any of the first aspects.
In a fifth aspect, the present invention provides an in-vehicle apparatus comprising:
the receiving module is used for receiving a second path number sent by the road side identification equipment, wherein the second path number uniquely indicates a second path within a preset geographic range, and the second path is matched with the current driving path of the receiving module;
and the replacing module is used for replacing the currently recorded first path number with the second path number, the first path number uniquely indicates a first path in the preset geographic range, and the first path is not matched with the current position.
In a sixth aspect, the present invention provides an in-vehicle apparatus comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any of the second aspects.
In a seventh aspect, the present invention provides a path identification system, including:
the roadside identification device as described in any one of the third and fourth aspects; and the combination of (a) and (b),
the vehicle-mounted device according to any one of the fifth aspect and the sixth aspect.
In an eighth aspect, the present invention provides a computer-readable storage medium having stored thereon a computer program,
the computer program is executed by a processor to implement the path identification method according to any one of the first aspect or the second aspect.
In the technical scheme provided by the invention, the vehicle-mounted equipment only records a path number within a preset theorem range, and the path number is only used for indicating a path, so that when a vehicle passes through the roadside identification equipment, the roadside identification equipment can determine the historical path of the vehicle-mounted equipment by reading the first path number recorded by the vehicle-mounted equipment, thereby judging according to the current position, determining whether the first path number is matched with the current driving path or not, if not, re-determining a second path number and sending the second path number to the vehicle-mounted equipment, and the vehicle-mounted equipment replaces the originally recorded first path number with the received second path number, so that the vehicle-mounted equipment only needs to record a unique path number within the preset geographical range, can determine the driving path of the vehicle within the preset geographical range, and further, when the vehicle settles at an exit toll station, only need upload to a route serial number of electronic toll collection system ETC of not stopping can, this great reduction the data interaction quantity between mobile unit and the ETC, improved route identification efficiency to and improved the ETC settlement efficiency of toll station export, can also avoid to a certain extent because the settlement inefficiency causes the condition of traffic jam.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is an interaction flow diagram of a path identification method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a path structure according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a path identification method executed by the roadside marker device side according to an embodiment of the present invention;
fig. 4 is an interaction flow diagram of another path identification method according to an embodiment of the present invention;
fig. 5 is a functional block diagram of a roadside identification device according to an embodiment of the present invention;
fig. 6 is a functional block diagram of an in-vehicle device according to an embodiment of the present invention;
fig. 7 is a schematic physical structure diagram of a roadside marker device according to an embodiment of the present invention;
fig. 8 is a schematic physical structure diagram of an in-vehicle device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a path identification system according to an embodiment of the present invention.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terms to which the present invention relates will be explained first:
ambiguous path: the ambiguous path is also called as two or more driving paths between two toll stations in the toll road network.
Electronic Toll Collection (ETC): the system is a full-automatic toll collection system which is used for completing a toll collection processing process on a toll collection type expressway under the condition that a driver does not need to stop and other toll collectors do not need to take any operation through special short-range communication between a roadside antenna and a vehicle-mounted electronic tag at a toll station.
Vehicle-mounted equipment: the microwave device is arranged in a vehicle and can communicate with other devices by adopting a special short-range communication technology. In a specific implementation scenario, it may be represented as: on Board Unit (OBU).
In the specific implementation process, the specific expression form may include but is not limited to: electronic tags, electronic chips, and the like. Wherein, electronic tags can be installed in the vehicle interior, such as: windshield glass or instrument desk.
Road Side identification device (RSU): the ETC system is a device which can adopt a special short-range communication technology to communicate with vehicle-mounted equipment arranged in a vehicle, can be used for realizing the functions of vehicle identity recognition, electronic toll collection and the like and is arranged at the roadside.
An identification station: the road side identification device is also called a road side identification device, which is a road side identification device arranged at a preset identification point. The identification station can adopt 5.8GHz special short-range communication technology to exchange information with the composite access card and the vehicle-mounted equipment.
A driving path: refers to the path that the vehicle travels throughout the course of travel. In a toll road network, all travel paths from the start of a vehicle entering the toll road network (typically the entrance of a toll booth) to the exit of the toll road network (typically the exit of the toll booth) may be taken.
A driving path: the present invention is a method for representing a current route in which a part or all of a travel route is terminated at a current geographical position, and may be understood as being constituted by a historical route and the current position. For example, in a toll road network, the path traveled between the beginning of a vehicle entering the toll road network (typically a toll gate) to the current location may be taken. For another example, in a plurality of scenes involving a plurality of preset geographic ranges, the driving route refers to a route through which the vehicle travels between a start point and an end point, where the position of the vehicle when entering the preset geographic range is the start point, and the current position is the end point.
The historical route is a part of the driving route, is a route through which the vehicle travels before the current position, and does not include the current position. For example, in a scenario involving a plurality of preset geographic ranges, the route traveled by the vehicle before the current position is defined as a starting point of the position when the vehicle enters the preset geographic range.
The specific application scene of the invention is an identification scene aiming at the vehicle driving path in the road network. One specific application scenario is as follows: and (3) identifying scenes of vehicle driving paths in the toll road network.
In the recognition scene aiming at the driving path in the road network, an identification station is generally set in an ambiguous road segment, and the identification station can carry out short-range communication with vehicle-mounted equipment, so that when a vehicle passes through the identification station, the identification station sends the identification station information of the identification station to the vehicle-mounted equipment through short-range communication, and the vehicle-mounted equipment stores the identification station information correspondingly. In this way, the identification station information of all the identification stations on the entire travel path of the vehicle is stored in the vehicle-mounted device.
In this way, in the aforementioned travel route recognition scenario of the toll road network, at the exit of the ETC toll station, the vehicle-mounted device on the vehicle side uploads all the station information recorded by itself to the ETC, so that the ETC can recognize the travel route of the vehicle based on the station information and further automatically calculate the settlement amount of the vehicle using the travel route.
However, in this path recognition method, a large amount of beacon information is stored in the vehicle-mounted device, which occupies a large memory resource of the vehicle-mounted device, and in addition, since the ETC is sensitive to the transaction time, and the communication data amount between the vehicle-mounted device and the ETC directly affects the settlement time, when the ETC is automatically settled, if the communication data amount between the vehicle-mounted device and the ETC is large, the settlement time increases, the vehicle may exit the communication area, which may cause the settlement failure, and once the settlement fails, the rear vehicle may be jammed directly, which may affect the settlement success rate. Thus, in the hot section and/or the hot period, traffic jam may be caused due to low settlement efficiency, and settlement success rate may be reduced.
The path identification method provided by the invention aims to solve the technical problems in the prior art and provides the following solving ideas: on the basis of not changing the existing path recognition system, the data processing process in the vehicle-mounted equipment and the road side identification equipment is optimized, so that only one path number is recorded in the vehicle-mounted equipment, and each identification station passed by the vehicle is used for correcting the path number, so that the path recognition of the vehicle can be realized with the minimum data interaction amount when settlement is carried out at a toll gate.
The following describes the technical solutions of the present invention and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Example one
The embodiment of the invention provides a path identification method. The method is implemented between the roadside identification device and the vehicle-mounted device, and for easy understanding, an information interaction schematic diagram between the roadside identification device and the vehicle-mounted device is provided in the embodiment of the application, please refer to fig. 1, and the method includes the following steps:
s102, the road side identification device obtains a first path number currently recorded by the vehicle-mounted device, and the first path number uniquely indicates a first path within a preset geographic range.
In the embodiment of the present invention, the route numbers are used to distinguish a plurality of routes in the road network. In practical implementation, the path number may be preset in advance.
And S104, judging whether the current position is matched with the first path by the road side identification equipment.
The current position refers to a position of the roadside identification device and/or the vehicle-mounted device, and is substantially a current driving position for indicating a vehicle where the vehicle-mounted device is located. The vehicle-mounted equipment and the roadside identification equipment are interacted in a short-range communication mode, so that the positions of the vehicle-mounted equipment and the roadside identification equipment can be considered to be the same in the communication interaction process in the whole road network.
And S106, if the current position is not matched with the first path, the road side identification equipment determines a second path number, the second path number uniquely indicates a second path within a preset geographic range, and the second path is matched with the driving path of the vehicle to which the vehicle-mounted equipment belongs.
And S108, the roadside identification equipment sends the second path number to the vehicle-mounted equipment, so that the vehicle-mounted equipment replaces the first path number with the second path number.
And S110, the vehicle-mounted equipment receives the second path number sent by the road side identification equipment.
And S112, replacing the currently recorded first path number with the second path number by the vehicle-mounted equipment.
Through the interaction process, each time the vehicle approaches one roadside identification device, the roadside identification device can communicate with the vehicle-mounted device in the vehicle according to the mode shown in fig. 1 to obtain the path number recorded in the vehicle-mounted device, so that when the first path uniquely indicated by the first path number is determined to be not matched with the current position, the path number is adjusted to determine a second path matched with the driving path of the vehicle, the second path number corresponding to the second path is sent to the vehicle-mounted device, and the vehicle-mounted device covers the first path number with the second path number for replacement storage. Therefore, the vehicle can be ensured to correct the self path number in time when passing through any roadside identification device, namely, the vehicle-mounted device can finish the representation and the indication of the self driving path only through one path number which is corrected step by step.
In addition, in the embodiment of the application, if the determination result in the step S104 is matching, the roadside identification device does not need to acquire the second path number, and at this time, resources can be saved to a certain extent; in order to further save communication resources, in this case, the roadside identification device may not feed back data to the vehicle-mounted device, and accordingly, the vehicle-mounted device still records the first path number without performing other processing on the first path number. Or, in order to more finely adjust the driving route, the whole route identification process may be completed according to the process shown in fig. 1.
In the embodiment of the invention, the vehicle-mounted equipment only needs to store one path number for one preset geographic range. That is, a path number uniquely identifies only one path within a predetermined geographic range. The preset geographical range can be preset according to actual needs.
In a preferred implementation scenario, the preset geographical range may be preset to the province where the current location of the vehicle-mounted device is located, considering that the settlement in the existing toll road network is separately charged in units of provinces. Thus, in the implementation scenario, if the driving route of any vehicle is only located in one province, only one route number needs to be recorded in the vehicle-mounted equipment of the vehicle; alternatively, if the driving route of any vehicle crosses N provinces, only N route numbers need to be recorded in the vehicle-mounted device of the vehicle, where N is an integer greater than 1. The data volume stored in the vehicle-mounted equipment is greatly reduced, the method is suitable for the existing settlement strategy of the toll road, and the settlement efficiency can be further improved because each province independently settles.
In addition, besides the province of the current location as the preset geographic range, other dividing manners may be available, for example, division by country, or, for example, other customized areas may be available as the preset geographic range, which is not particularly limited in the embodiment of the present application.
In the embodiment of the invention, in a scene with a plurality of preset geographic ranges, whether each preset geographic range is numbered independently or not is not particularly limited.
That is, when there are multiple preset geographic ranges, each preset geographic range may adopt the same set of path numbers, at this time, each path number uniquely indicates one path within the multiple preset geographic ranges, and any path number within any preset geographic range is inconsistent with the path numbers within other preset geographic ranges. For example, if 3 provinces share a set of path numbers, any path number in the 3 provinces only indicates one path. This implementation requires a large number of numbering resources, but the amount of data stored in the on-board device and the amount of data subsequently uploaded are small, and the amount of work required by the subsequent ETC to determine the vehicle travel path from the path number can be saved.
Or, each preset geographic range can independently number the paths of each road network in the range, and at this time, if scenes of a plurality of preset geographic ranges are involved, the path numbers reported to the ETC may be repeated when the vehicle travels to the exit of the ETC toll station. At this time, it should be noted that the preset geographical range to which each path number belongs is indicated in other ways. Each preset geographical range of the vehicle approach and a unique path number within each range can be recorded in a corresponding relationship.
For example, each path number may be distinguished in a storage location manner, a unique path number in a first preset geographic range is stored in a first storage location, a unique path number in a second preset geographic range is stored in a second storage location, and so on, to obtain respective unique path numbers in each preset geographic range of the vehicle route; in addition, the corresponding relation between each storage position and the preset geographic range can be further sent out for settlement.
For another example, each preset geographic range of the vehicle route and a unique one of the route numbers within each range may be stored in a table-like manner.
For convenience of understanding, the technical solution provided in the present invention is described below by taking a path identification method in a preset geographic range as an example, and it can be seen that path identification situations in a plurality of preset geographic ranges are similar and will not be described again.
In the embodiment of the application, the data interaction between the vehicle-mounted equipment and the road side identification equipment is realized on the basis of communication between the vehicle-mounted equipment and the road side identification equipment.
In one implementation scenario, before executing step S102, the method may further include the following steps:
and the road side identification equipment sends a communication establishment request to the vehicle-mounted equipment.
And the vehicle-mounted equipment receives the communication establishing request and sends a communication establishing response message to the road side identification equipment according to the communication establishing request.
Thus, communication between the roadside identification device and the vehicle-mounted device is established. Therefore, the step of the road side identification device specifically acquiring the first path number in S102, the step of the road side identification device transmitting the second path number in S108, and the step of the vehicle-mounted device receiving the second path number in S110 can be implemented through the communication.
In order to further utilize the physical architecture of path identification in the prior art as much as possible to reduce the cost for changing the system architecture as much as possible, in the embodiment of the present application, the communication between the roadside identification device and the vehicle-mounted device may be a Dedicated Short Range Communication (DSRC), and the Dedicated Short Range communication has a low requirement on a network, and may even operate in a no-network state.
Within a preset geographic range, only one path number is recorded in the vehicle-mounted equipment. Therefore, the roadside identification device side obtains the first path number, namely the unique path number recorded in a current preset geographic range of the vehicle to which the vehicle-mounted device belongs.
In the embodiment of the present application, when S104 is executed, the following method may be implemented:
judging whether the current position is located on the first path or not;
if yes, determining that the current position is matched with the first path; or, if not, determining that the current position is not matched with the first path.
Specifically, for the convenience of understanding, reference may be made to the schematic path structure shown in fig. 2, where fig. 2 shows a road network formed by four roads AK, BL, CF and GJ, where the road AK crosses the road CF at a position D, the road BL crosses the road CF at a position E, the road AK crosses the road GJ at a position H, and the road BL crosses the road GJ at a position I. The system comprises a base, a position C, a position H, a position I, a position C, a position D, a position I, a position E, a position I, a position G, a position H, a position I, a position C, a position D, a position E, a position I, a position G, a position I, a position E and a position F, wherein a marking station 1001 is arranged between the position C and the position D, a marking station 1002 is arranged between the position D and.
Table 1 shows the correspondence between the partial routes in the road network shown in fig. 2 and the route numbers thereof.
TABLE 1
CDA CDEB CDEF CDEIL CDEIJ CDHG CDHK EDHIL CDHIJ
0001 0002 0003 0004 0005 0006 0007 0008 0009
In table 1, the first row represents a path, the second row represents a path number, and the first row data and the second row data correspond to each other one by one. Table 1 shows only some paths in the road network shown in fig. 2 and the corresponding relationship between the path numbers, and in an actual application scenario, there may be other paths.
This scheme is explained below with reference to fig. 2.
For example, if the vehicle travels to the position of the identification station 1005, and the roadside identification device 1005 acquires that the first route number recorded in the vehicle-mounted device is 0003 at this time, it may be determined that the first route corresponding to 0003 is: CDEF, and thus the location at which the identification station 1005 is located is not located on the first path CDEF, and thus it can be determined that the current travel location of the vehicle does not match the first path number.
Alternatively, for example, if the vehicle travels to the position of the identification station 1005, and the roadside identification device 1005 acquires that the first route number recorded in the vehicle-mounted device is 0004 at this time, it may be determined that the first route corresponding to 0004 is: CDEIL, and thus, the location at which station 1005 is located, is identified and located on first path CDEIL, and thus, it may be determined that the current travel location of the vehicle matches the first path number.
By the method, when the vehicle approaches any one of the identification stations, whether the current driving position of the vehicle is matched with the first path or not can be determined by the identification station. Thus, when they do not match, the step of determining the second path number described in S106 is performed.
It is understood that the purpose of determining the second path number in S106 is to match the second path with the traveling path of the vehicle. At this time, referring to fig. 3, the following means may be implemented:
and S1062, acquiring a historical path of the vehicle-mounted equipment according to the first path and the current position.
And S1064, obtaining a driving path according to the historical path and the current position.
And S1066, acquiring a path matched with the driving path to serve as a second path.
S1068, determining the path number corresponding to the second path as the second path number.
Still taking fig. 2 as an example, if the vehicle travels to the position of the identification station 1005, at this time, the roadside identification device 1005 acquires that the first path number recorded in the vehicle-mounted device is 0003, and at this time, it is determined that the current position does not match the first path CDEF, then in the whole route process of the CDEF, the latest correction of the first path number is the identification station 1002, at this time, it may be determined that the vehicle to which the vehicle-mounted device belongs inevitably passes through the identification station 1002, and the identification station 1002 is disposed between the ambiguous road sections DE, and then it may be determined that the vehicle to which the vehicle-mounted device belongs passes through the road sections DE, and thus, in combination with the first path being the CDEF, it may be determined that the driving path of the vehicle to which the vehicle-mounted: and (3) CDE.
Further, since the current position of the vehicle to which the vehicle-mounted device belongs is the position of the identification station 1005, and the identification station 1005 is disposed between the ambiguous road sections EI, it may be determined that the driving path of the vehicle to which the vehicle-mounted device belongs is: CDEI.
In this case, referring to table 1, it can be seen that there are two routes matching the travel route in the road network shown in fig. 2: CDEIL and CDEIJ, one path may be selected as the second path in the two paths. If CDEIJ is selected as the second path, it may be determined 0005 to be the second path number.
Thus, the roadside identification device may complete the determination process of the second path number.
It should be further noted that, in the application process of the embodiment of the present invention, when the step S1066 is executed, the following implementation manners may be adopted:
acquiring all paths matched with the driving path of the vehicle to which the vehicle-mounted equipment belongs within a preset geographic range to serve as candidate paths;
one candidate path is selected from the candidate paths as a second path.
When the second path is selected from the candidate paths, there may be multiple ways, and the implementation ways may include, but are not limited to, the following:
the first, random selection. That is, one of the candidate paths is randomly selected as the second path. The implementation mode has simple logic and high efficiency.
In the second mode, the machine learning algorithm is used for estimating the tendency degree of the vehicle to which the vehicle-mounted equipment belongs to each candidate path, and one path with higher tendency degree is used as a second path. And the sample data of the machine learning algorithm is derived from historical driving data of the vehicle to which the vehicle-mounted equipment belongs. The realization mode is closer to the driving preference of the vehicle, the estimated second path is closer to the real driving path, the settlement amount of the road side identification equipment in the global range can be reduced from all driving paths of the vehicle, and the data processing efficiency of the road side identification equipment in the global range is improved.
And in the third mode, the selection is carried out according to other preset rules. For example, according to the order from front to back of the correspondence list as described in table 1, the front candidate route is preferentially selected as the second route; alternatively, for example, a candidate route having a shorter route length is preferentially selected as the second route according to the route length of each candidate route; alternatively, for example, the candidate route having the smaller number of turns is preferentially selected as the second route according to the number of turns of each candidate route. It is understood that there are many other ways to select the second path according to the preset rule, and this is not exhaustive.
And as a receiver of the second path number, after receiving the second path number sent by the road side identification device, the vehicle-mounted device receives the second path number, and replaces the first path number with the second path number.
The "replacement" method according to the embodiment of the present invention may include, but is not limited to: deleting the first path number and storing the second path number; or, the first path number is not deleted, the second path number is directly stored, and the second path number is marked as the currently recorded path number. In addition, the embodiment of the present invention is not particularly limited as to whether or not the first path number and the second path number are stored in the same location in the in-vehicle device.
In addition, in the embodiment of the present invention, there may be a case where: when it is determined that the current location does not match the first path and the second path number needs to be re-determined, a situation that the path number matching the current location is not found in the currently configured path numbers, that is, a situation that the currently configured path numbers are not complete is found.
At this time, the roadside identification device may include, but is not limited to, the following processing modes:
the first mode is as follows: if this roadside identification device can be networked, that is to say, when can communicate with the backend server. At the moment, the driving path of the vehicle to which the vehicle-mounted equipment belongs is obtained, the driving path is reported to the background server, and whether the path number is newly added or not is determined according to the indication of the background server. Wherein the indication of the background server may be decided and sent by the administrator.
If the background server indicates a new path number, the roadside identification device generates the new path number as a second path number and sends the second path number to the vehicle-mounted device; meanwhile, the roadside identification device sends the corresponding relationship between the newly added path (the driving path reported by the roadside identification device) and the newly added path number to the background server, and the background server informs other identification stations (other roadside identification devices) and the ETC of the toll station.
Or, if the background server indicates a new path number and the configuration of the corresponding relationship between the new path number and the new path (the driving path reported by the roadside identification device) is completed, the background server issues the corresponding relationship to all the roadside identification devices and the ETC, and after receiving the corresponding relationship, the roadside identification device reporting the new path can use the new path number in the corresponding relationship as the second path number and send the second path number to the vehicle-mounted device.
On the contrary, if the background server indicates that the path number is not newly added, each roadside identification device that the vehicle passes through can upload the driving path of the vehicle at the current position to the background server in a networking state, and the background server tracks and records the driving path of the vehicle, and finally informs the ETC to reduce the data transmission quantity. The ETC can also directly obtain the driving path of the vehicle, and the settlement efficiency is improved.
The implementation mode can quickly respond, a newly added path can be solved every time, the difficulty of pre-counting path numbers is simplified, and a pre-counting path number database is newly added and perfected in the later period, so that the implementation mode is simple, convenient and timely.
The second mode is as follows: the road side identification equipment directly generates a newly added path number according to the driving path of the vehicle to which the vehicle-mounted equipment belongs, and sends the newly added path number to the vehicle-mounted equipment as a second path number; and when the roadside identification equipment is networked, the roadside identification equipment sends the corresponding relation between the driving path and the newly-added path number to the background server, so that the background server can inform other identification stations (other roadside identification equipment) and the ETC of the toll station of the newly-added corresponding relation.
Furthermore, in order to reduce the influence of the data amount of the path number on the charging efficiency as much as possible, in a preferred implementation scenario, the path numbers have the same character length. Such as the character length of the first path number and the second path number. For example, the paths shown in table 1 are all numbered the same. In this way, it is ensured that the character length of one path number recorded in the vehicle-mounted device is fixed and does not increase or decrease due to adjustment of the path number, that is, the character length of the path number which is finally uploaded to the ETC is fixed.
It is to be noted that in this case, where a plurality of preset geographical ranges are involved, such as a plurality of provinces, then it may be preferable to implement: the length of data finally uploaded to the ETC by the vehicle-mounted equipment is fixed.
In addition, in practical application of the present solution, there may be a case: when the vehicle passes through the first roadside identification device, no path number may be recorded in the vehicle-mounted device of the vehicle. Taking the road network shown in fig. 2 as an example, if a vehicle enters the road network from a location C and travels to a location D, the vehicle will pass through a first roadside marker 1001 within the road network, at this time, the roadside marker 1001 communicates with an on-board device in the vehicle, and no path number is recorded in the on-board device since the on-board device just enters the road network.
In this case, the treatment may be performed as follows:
if the vehicle-mounted equipment does not record any path number currently, the roadside identification equipment acquires a fourth path number according to the current position, the fourth path number uniquely indicates a third path within a preset geographic range, and the current position is located on the third path; correspondingly, the vehicle-mounted equipment receives the fourth path number and records the fourth path number.
In addition, in order to further ensure the validity of data transmission between the road side identification device and the vehicle-mounted device, the embodiment of the invention can also adopt a mode of adding a verification code to the path number, and the vehicle-mounted device confirms whether the identity of the road side identification device is legal or not according to the verification result of the verification code, so that the path number sent by the road side identification device is replaced and recorded when the identity of the road side identification device is legal.
Taking the scenario that the roadside identification device sends the second path number to the vehicle-mounted device as an example, referring to fig. 4, the execution flows of the roadside identification device and the vehicle-mounted device are respectively:
s1082, the roadside identification device adds a check code to the second path number to obtain a third path number.
S1084, the third path number is sent to the vehicle-mounted equipment.
In contrast to this, the first and second electrodes are,
and S1102, the vehicle-mounted equipment receives a third path number sent by the road side identification equipment, wherein the third path number is composed of the second path number and a check code.
And S1104, the vehicle-mounted equipment verifies whether the road side identification equipment is legal equipment or not according to the check code.
And S1106, if the third path number is valid (namely, the vehicle-mounted device is legal), extracting the second path number carried in the third path number by the vehicle-mounted device.
Or, if the verification result in S1104 is negative, that is, it is determined that the roadside identification device is an illegal device, the vehicle-mounted device does not need to perform subsequent operations, and does not need to record the path number sent by the illegal roadside identification device.
The term "need not" in the embodiments of the present invention means that some operation may not be performed, but may still be performed in some scenarios.
The check code related to fig. 4 may be determined in a manner of a preset value, or may also be obtained by performing specified processing on the identifier station information, such as encryption processing.
Therefore, the vehicle-mounted equipment checks whether the roadside identification equipment is legal or not according to the check code, and the adding mode of the check code is related. For example, if the check code is added in a preset value manner, after the vehicle-mounted device receives the third path number, the check code in the third path number can be extracted to verify whether the check code is a preset value agreed between the vehicle-mounted device and the roadside identification device, and if the check code is the preset value agreed between the vehicle-mounted device and the roadside identification device, the vehicle-mounted device is determined to be a legal device; otherwise, if the check code in the third path number does not accord with the predetermined value, the third path number is determined to be illegal equipment. For another example, if the check code is obtained by encrypting the identification station information, the vehicle-mounted device may decrypt the check code in the third path number, and compare the obtained identification station information with preset legal identification station information, so that if the identification station information is one of the legal identification station information, it is determined that the identification station information is a legal device; otherwise, if the identification station information is that the legal identification station information is not consistent, the identification station information is determined to be illegal equipment.
The scenario shown in fig. 4 is only used to specifically explain how to implement validity verification of data transmission, and in an actual implementation process, any data transmission between the roadside identification device and the vehicle-mounted device can be completed by using the validity verification method.
In summary, through the above steps, only one route number is recorded in the vehicle-mounted device within a preset geographic range, and thus, when the vehicle travels to the exit of the toll gate for settlement, the vehicle-mounted device only needs to send one (only when the vehicle moves within one preset geographic range) or N (when N preset geographic ranges are crossed, N is an integer greater than 1) route numbers recorded by the vehicle-mounted device to the ETC. Compared with the mode that information of each identification station of the vehicle in the driving path is recorded in the prior art, the embodiment of the invention can realize path identification by recording only one path number, thereby greatly reducing the data uploading quantity between the vehicle-mounted equipment and the ETC, improving the transmission rate and further improving the path identification efficiency and the settlement efficiency.
On the contrary, when the ETC receives a path number finally recorded by the vehicle-mounted equipment, the corresponding path can be determined according to the path number, and path identification is realized. And further, based on the identified path, the path length is settled and settlement is completed.
At this time, there are at least the following implementations: the ETC stores the path and the corresponding relationship of the path number in advance, and at the moment, after receiving the path number uploaded by the vehicle-mounted equipment, the ETC can directly obtain the path in a table look-up mode.
Taking table 1 as an example, the ETC prestores the correspondence table 1 in each preset geographic range in advance, and if the path number finally uploaded by the vehicle-mounted device is: 0009, the ETC can obtain the driving route corresponding to 0009 by looking up table 1 as: CDHIJ.
Therefore, as a settlement processor, the ETC directly acquires the accurate driving path of the vehicle, and does not need to read all identification station information as in the existing method and then carry out the complex steps of on-site settlement of the path, so that the workload of a roadside computer during ETC transaction is greatly simplified, and the requirement on the performance of the computer is low.
The technical scheme provided by the embodiment of the invention at least has the following technical effects:
in the technical scheme provided by the invention, the vehicle-mounted equipment only records a path number within a preset theorem range, and the path number is only used for indicating a path, so that when a vehicle passes through the roadside identification equipment, the roadside identification equipment can determine the historical path of the vehicle-mounted equipment by reading the first path number recorded by the vehicle-mounted equipment, thereby judging according to the current position, determining whether the first path number is matched with the current driving path or not, if not, re-determining a second path number and sending the second path number to the vehicle-mounted equipment, and the vehicle-mounted equipment replaces the originally recorded first path number with the received second path number, so that the vehicle-mounted equipment only needs to record a unique path number within the preset geographical range, can determine the driving path of the vehicle within the preset geographical range, and further, when the vehicle settles at an exit toll station, only need upload to a route serial number of electronic toll collection system ETC of not stopping can, this great reduction the data interaction quantity between mobile unit and the ETC, improved route identification efficiency to and improved the ETC settlement efficiency of toll station export, can also avoid to a certain extent because the settlement inefficiency causes the condition of traffic jam. In the technical scheme provided by the invention, the vehicle-mounted equipment only records a path number within a preset theorem range, and the path number is only used for indicating a path, so that when a vehicle passes through the roadside identification equipment, the roadside identification equipment can determine the historical path of the vehicle-mounted equipment by reading the first path number recorded by the vehicle-mounted equipment, thereby judging according to the current position, determining whether the first path number is matched with the current driving path or not, if not, re-determining a second path number and sending the second path number to the vehicle-mounted equipment, and the vehicle-mounted equipment replaces the originally recorded first path number with the received second path number, so that the vehicle-mounted equipment only needs to record a unique path number within the preset geographical range, can determine the driving path of the vehicle within the preset geographical range, and further, when the vehicle settles at an exit toll station, only need upload to a route serial number of electronic toll collection system ETC of not stopping can, this great reduction the data interaction quantity between mobile unit and the ETC, improved route identification efficiency to and improved the ETC settlement efficiency of toll station export, can also avoid to a certain extent because the settlement inefficiency causes the condition of traffic jam.
Example two
Based on the path identification method provided by the first embodiment, the embodiment of the present invention further provides an embodiment of an apparatus for implementing each step and method in the above method embodiment.
An embodiment of the present invention provides a roadside marker device, please refer to fig. 5, the roadside marker device 500 includes:
the obtaining module 51 is configured to obtain a first path number currently recorded by the vehicle-mounted device, where the first path number uniquely indicates a first path within a preset geographic range;
a judging module 52, configured to judge whether the current position matches the first path;
the determining module 53 is configured to determine a second path number if the current location is not matched with the first path, where the second path number uniquely indicates a second path within the preset geographic range, and the second path is matched with a driving path of a vehicle to which the vehicle-mounted device belongs;
a sending module 54, configured to send the second path number to the vehicle-mounted device, so that the vehicle-mounted device replaces the first path number with the second path number.
The determining module 53 is specifically configured to:
acquiring a historical path of a vehicle to which the vehicle-mounted equipment belongs according to the first path and the current position;
obtaining the driving path according to the historical path and the current position;
acquiring a path matched with the driving path to serve as the second path;
and determining the path number corresponding to the second path as the second path number.
The determining module 52 is specifically configured to:
judging whether the current position is located on the first path or not;
if yes, determining that the current position is matched with the first path; or, if not, determining that the current position is not matched with the first path.
In a specific implementation, the sending module 54 includes:
the adding submodule is used for adding a check code for the second path number to obtain a third path number;
and the sending submodule is used for sending the third path number to the vehicle-mounted equipment.
In addition, the determining module 53 is further configured to, if no path number is currently recorded by the vehicle-mounted device, obtain a fourth path number according to the current position, where the fourth path number uniquely indicates a third path within the preset geographic range, and the current position is located on the third path;
at this time, the sending module 54 is configured to send the fourth path number to the vehicle-mounted device, so that the vehicle-mounted device records the fourth path number.
An embodiment of the present invention provides a vehicle-mounted device, please refer to fig. 6, where the vehicle-mounted device 600 includes:
the receiving module 61 is configured to receive a second path number sent by the roadside identification device, where the second path number uniquely indicates a second path within a preset geographic range, and the second path is matched with a current driving path of the receiving module;
a replacing module 62, configured to replace a currently recorded first path number with the second path number, where the first path number uniquely indicates a first path within the preset geographic range, and the first path is not matched with the current location.
In addition, in a specific implementation scenario, the receiving module 61 includes:
the receiving submodule is used for receiving a third path number sent by the road side identification equipment, and the third path number is composed of the second path number and a check code;
the verification submodule is used for verifying whether the roadside identification equipment is legal equipment or not according to the check code;
and the extracting submodule is used for extracting the second path number carried in the third path number if the second path number is the third path number.
Also, an embodiment of the present invention provides a roadside marker device, please refer to fig. 7, where the roadside marker device 700 includes:
a memory 710;
a processor 720; and
a computer program;
wherein the computer program is stored in the memory 710 and configured to be executed by the processor 720 to implement the path identification method as performed by the roadside identification device side described above.
In addition, as shown in fig. 7, a transceiver 730 is further disposed in the roadside identification device 700, and is used for data transmission or communication with other devices, which is not described herein again.
Also, an embodiment of the present invention provides an in-vehicle device, please refer to fig. 8, where the in-vehicle device 800 includes:
a memory 810;
a processor 820; and
a computer program;
wherein the computer program is stored in the memory 810 and configured to be executed by the processor 820 to implement the path recognition method performed on the in-vehicle device side as in the above-described embodiments.
In addition, as shown in fig. 8, a transceiver 830 is further disposed in the vehicle-mounted device 800, and is used for data transmission or communication with other devices, which is not described herein again.
An embodiment of the present invention provides a readable storage medium, having a computer program stored thereon,
the computer program is executed by a processor to implement the method of path identification according to any one of the embodiments.
Also, an embodiment of the present invention provides a path identification system, please refer to fig. 9, where the path identification system 900 includes:
roadside identification devices 500 and vehicle-mounted devices 600.
Since each module in this embodiment can execute the path identification method shown in the first embodiment, reference may be made to the related description of the first embodiment for a part not described in detail in this embodiment.
The technical scheme provided by the embodiment of the invention at least has the following technical effects:
in the technical scheme provided by the invention, the vehicle-mounted equipment only records a path number within a preset theorem range, and the path number is only used for indicating a path, so that when a vehicle passes through the roadside identification equipment, the roadside identification equipment can determine the historical path of the vehicle-mounted equipment by reading the first path number recorded by the vehicle-mounted equipment, thereby judging according to the current position, determining whether the first path number is matched with the current driving path or not, if not, re-determining a second path number and sending the second path number to the vehicle-mounted equipment, and the vehicle-mounted equipment replaces the originally recorded first path number with the received second path number, so that the vehicle-mounted equipment only needs to record a unique path number within the preset geographical range, can determine the driving path of the vehicle within the preset geographical range, and further, when the vehicle settles at an exit toll station, only need upload to a route serial number of electronic toll collection system ETC of not stopping can, this great reduction the data interaction quantity between mobile unit and the ETC, improved route identification efficiency to and improved the ETC settlement efficiency of toll station export, can also avoid to a certain extent because the settlement inefficiency causes the condition of traffic jam.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A method for path identification, comprising:
the method comprises the steps of obtaining a first path number currently recorded by the vehicle-mounted equipment, wherein the first path number uniquely indicates a first path in a preset geographic range;
judging whether the current position is matched with the first path;
if the current position is not matched with the first path, determining a second path number, wherein the second path number uniquely indicates a second path in the preset geographic range, and the second path is matched with a driving path of a vehicle to which the vehicle-mounted equipment belongs;
and sending the second path number to the vehicle-mounted equipment, so that the vehicle-mounted equipment replaces the first path number with the second path number, and the vehicle-mounted equipment uploads the second path number to an electronic toll collection system.
2. The method of claim 1, wherein determining the second path number comprises:
acquiring a historical path of a vehicle to which the vehicle-mounted equipment belongs according to the first path and the current position;
obtaining the driving path according to the historical path and the current position;
acquiring a path matched with the driving path to serve as the second path;
and determining the path number corresponding to the second path as the second path number.
3. The method of claim 1, wherein determining whether the current location matches the first path comprises:
judging whether the current position is located on the first path or not;
if yes, determining that the current position is matched with the first path; or, if not, determining that the current position is not matched with the first path.
4. The method according to any one of claims 1 to 3, wherein the sending the second path number to the vehicle-mounted device comprises:
adding a check code to the second path number to obtain a third path number;
and sending the third path number to the vehicle-mounted equipment.
5. The method according to any one of claims 1 to 3, further comprising:
if the vehicle-mounted equipment does not record any path number currently, acquiring a fourth path number according to the current position, wherein the fourth path number uniquely indicates a third path within the preset geographic range, and the current position is located on the third path;
and sending the fourth path number to the vehicle-mounted equipment so that the vehicle-mounted equipment records the fourth path number.
6. A method for path identification, comprising:
receiving a second path number sent by road side identification equipment, wherein the second path number uniquely indicates a second path within a preset geographic range, and the second path is matched with the current driving path of the second path;
and replacing the currently recorded first path number with the second path number, and uploading the second path number to the electronic toll collection system, wherein the first path number uniquely indicates a first path within the preset geographic range, and the first path is not matched with the current position.
7. The method of claim 6, wherein receiving the second path number transmitted by the roadside identification device comprises:
receiving a third path number sent by the road side identification device, wherein the third path number is composed of the second path number and a check code;
verifying whether the roadside identification equipment is legal equipment or not according to the check code;
and if so, extracting the second path number carried in the third path number.
8. A roadside marking device characterized by comprising:
the acquisition module is used for acquiring a first path number currently recorded by the vehicle-mounted equipment;
the judging module is used for judging whether the current position is matched with a first path, wherein the first path is a path which is uniquely indicated in a preset geographical range by the first path number;
the determining module is used for determining a second path number if the current position is not matched with the first path, wherein the second path number uniquely indicates a second path within the preset geographic range, and the second path is matched with the current position and a driving path of a vehicle to which the vehicle-mounted equipment belongs;
and the sending module is used for sending the second path number to the vehicle-mounted equipment so that the vehicle-mounted equipment replaces the first path number with the second path number and uploads the second path number to the electronic toll collection system.
9. An in-vehicle apparatus, characterized by comprising:
the receiving module is used for receiving a second path number sent by the road side identification equipment, wherein the second path number uniquely indicates a second path within a preset geographic range, and the second path is matched with the current driving path of the receiving module;
and the replacing module is used for replacing the currently recorded first path number with the second path number and uploading the second path number to the electronic toll collection system, the first path number uniquely indicates a first path in the preset geographic range, and the first path is not matched with the current position.
10. A path identification system, comprising: the roadside identification device of claim 8, and the vehicle-mounted device of claim 9.
CN201811060431.1A 2018-09-12 2018-09-12 Path identification method and system, road side identification equipment and vehicle-mounted equipment Active CN110896520B (en)

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