CN115311749A - Vehicle-mounted unit parameter adjusting method and device based on transaction center or vehicle-mounted unit - Google Patents
Vehicle-mounted unit parameter adjusting method and device based on transaction center or vehicle-mounted unit Download PDFInfo
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- CN115311749A CN115311749A CN202210707068.8A CN202210707068A CN115311749A CN 115311749 A CN115311749 A CN 115311749A CN 202210707068 A CN202210707068 A CN 202210707068A CN 115311749 A CN115311749 A CN 115311749A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
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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
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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Abstract
The invention provides a method and a device for adjusting vehicle-mounted unit parameters based on a transaction center or a vehicle-mounted unit, comprising the following steps: the transaction center obtains the issuing information and the historical transaction record of the first target vehicle, calculates the transaction success rate, the transaction overtime rate and the transaction failure type to judge the vehicle signal shielding problem, configures a physical parameter table of the vehicle-mounted unit according to the vehicle type information, and issues the parameter table to the vehicle-mounted unit through the appointed equipment to modify the parameters of the vehicle-mounted unit. Or the vehicle-mounted unit receives and wakes up the wake-up signal of the lane system, sends the identity information of the current vehicle to the lane system for legality authentication, then executes composite consumption transaction, adds the current consumption result into the historical transaction record, calculates the historical transaction success rate, the transaction timeout rate and the transaction failure type to judge the vehicle signal shielding problem, configures the physical parameter table of the vehicle-mounted unit according to the vehicle type information and automatically adjusts the physical parameter table. The invention realizes the self-adjustment of the parameters of the vehicle-mounted unit and improves the traffic efficiency of the lane.
Description
Technical Field
The invention relates to the technical field of ETC, in particular to a vehicle-mounted unit parameter adjusting method and device based on a transaction center or a vehicle-mounted unit.
Background
An Electronic Toll Collection (ETC) system is also called an Electronic Toll Collection system, is a key technology in the intelligent transportation field, and is also the most advanced highway Toll Collection system at present. A Road Side Unit (RSU) On an ETC lane of a toll station is communicated with an On Board Unit (OBU) installed On a vehicle windshield through a special Short-Range wireless Communication technology (DSRC), and background settlement is carried out by utilizing a computer network technology and a bank, so that the vehicle passes through the toll station and keeps a running state without parking in the whole toll collection process. In recent years, with the increase of economic development and automobile holding capacity, ETC, which has the advantage of automatic payment without parking, has been popularized on a large scale, the number of ETC users has also been increased explosively, and most Toll booths offer hybrid lanes with ETC as a main and MTC (Manual Toll Collection, translated into Manual semi-automatic Toll Collection) as an auxiliary.
After the ETC vehicle is transacted, the transaction history is uploaded to a transaction center platform of the provincial center/the central center through a charging system, and the transaction center can count the transaction quantity, the transaction success rate, the transaction failure rate and the like of the ETC vehicle. At present, the transaction success rate of ETC vehicles is generally lower than 95%, wherein the overtime ratio of the transaction in the transaction failure type is large, and the ETC vehicle success rate is improved.
Along with the development of the technology, the types of automobiles are various, the appearance structure and the material of each type of automobile are different, and meanwhile, the quality and the material of an automobile film pasted on the outside of the automobile are different to a certain extent, so that the quality and the material have certain influence on the signal transmission of an on-board unit.
Therefore, there is a need for an on-board unit parameter adjustment method to improve the success rate of ETC transactions for various types of vehicles.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a method for adjusting parameters of a vehicle-mounted unit based on a transaction center or a vehicle-mounted unit, so as to eliminate or improve one or more defects in the prior art, and solve the problem of signal attenuation or interference of the vehicle-mounted unit caused by different appearance structures and different film materials of various vehicle types.
The technical scheme of the invention is as follows:
in one aspect, the present invention provides a method for adjusting parameters of an on-board unit based on a transaction center, the method being executed in the transaction center, the transaction center communicating with the on-board unit loaded on a first target vehicle for ETC transaction through a lane system, the method comprising the steps of:
acquiring issuing information and a historical transaction record of the first target vehicle, and calculating a transaction success rate and a transaction overtime rate according to the historical transaction record; the release information at least comprises vehicle type information of a first target vehicle; the historical transaction record at least comprises a transaction amount, a transaction success amount, a transaction failure amount and a transaction failure type of the first target vehicle;
judging whether a signal shielding or interference problem exists or not according to the transaction success rate, the transaction overtime rate and the transaction failure type of the first target vehicle, and configuring a vehicle-mounted unit physical parameter table according to the transaction failure type and vehicle type information recorded in the release information under the condition that the signal shielding or interference exists;
and issuing the vehicle-mounted unit physical parameter table to a vehicle-mounted unit of the first target vehicle through a designated device so as to modify radio frequency parameters of the vehicle-mounted unit and avoid signal shielding or interference.
In some embodiments of the present invention, issuing the vehicle-mounted unit physical parameter table to the vehicle-mounted unit of the first target vehicle through a designated device includes:
in the ETC transaction process, the vehicle-mounted unit physical parameter table is issued to the vehicle-mounted unit of the first target vehicle through a lane system, and the vehicle-mounted unit receives the vehicle-mounted unit physical parameter table sent by the lane system through a DSRC protocol interface so as to adjust physical parameters.
In some embodiments of the present invention, issuing the on-board unit physical parameter table to the on-board unit of the first target vehicle through a designated device includes:
the vehicle-mounted unit is connected with a vehicle-mounted unit of a first target vehicle through Bluetooth of the mobile terminal and issues the vehicle-mounted unit physical parameter table to the vehicle-mounted unit, and the vehicle-mounted unit receives the vehicle-mounted unit physical parameter table sent by the lane system through a Bluetooth protocol interface so as to adjust physical parameters.
In some embodiments of the present invention, issuing the onboard unit physical parameter table to the onboard unit of the first target vehicle through the mobile terminal includes:
the latest physical parameter table of the vehicle-mounted unit is sent to a distribution system of load service software, and the load service software is loaded on the mobile terminal; after the issuing system receives the load service request sent by the mobile terminal through the load service software, the issuing system sends the physical parameter table of the vehicle-mounted unit to the mobile terminal and forwards the physical parameter table to the vehicle-mounted unit of the first target vehicle through the mobile terminal.
In some embodiments of the present invention, determining whether there is a signal shielding or interference problem according to the transaction success rate, the transaction timeout rate, and the transaction failure type of the first target vehicle includes:
and if the transaction success rate of the first target vehicle is lower than a first set threshold and/or the transaction timeout rate is greater than a second set threshold, judging that the first target vehicle has the signal shielding or interference problem.
In some embodiments of the present invention, configuring a vehicle-mounted unit physical parameter table according to vehicle model information and transaction failure types recorded in the release information in the presence of signal shielding or interference comprises:
and if the transaction failure types of the failure transaction records with the failure transaction records more than a first set proportion are the problems of signal shielding or signal interference, configuring the physical parameter table of the vehicle-mounted unit according to the vehicle type information of the first target vehicle so as to improve the transmitting power value of the vehicle-mounted unit, improve the awakening sensitivity value of the vehicle-mounted unit and/or change the modulation coefficient.
In another aspect, the present invention further provides an on-board unit parameter adjusting method based on an on-board unit, the method being executed on the on-board unit, the on-board unit performing ETC transaction communication with a transaction center through a lane system, the method comprising the steps of:
receiving and waking up a wake-up signal broadcasted by the lane system, and sending the identity identification information of the current vehicle to the lane system for legality authentication;
under the condition that the authentication is legal, performing composite consumption transaction with the lane system, and sending a consumption result to the lane system for consumption result authentication; under the condition that the authentication is passed, adding the current consumption result into a historical transaction record;
calculating the transaction success rate and the transaction overtime rate of the current vehicle according to the updated historical transaction record of the current vehicle; the historical transaction record of the current vehicle at least comprises the transaction quantity, the transaction success quantity, the transaction failure quantity and the transaction failure type of the current vehicle; judging whether a signal shielding or interference problem exists or not according to the transaction success rate, the transaction overtime rate and the transaction failure type of the current vehicle;
and under the condition of signal shielding or interference, acquiring issuing information of the vehicle-mounted unit, configuring a physical parameter table of the vehicle-mounted unit according to the transaction failure type and vehicle type information recorded in the issuing information, and automatically adjusting to avoid the signal shielding or interference.
In some embodiments of the present invention, determining whether there is a signal shielding or interference problem according to the transaction success rate, the transaction timeout rate, and the transaction failure type of the current vehicle includes:
if the transaction success rate of the current vehicle is lower than a first set threshold and/or the transaction timeout rate is larger than a second set threshold, judging that the current vehicle has a signal shielding or interference problem;
configuring a physical parameter table of the vehicle-mounted unit according to the transaction failure type and the vehicle type information recorded in the release information, wherein the physical parameter table comprises the following steps:
and if the transaction failure types of the failure transaction records with the failure transaction records more than a first set proportion are the problems of signal shielding or signal interference, configuring the physical parameter table of the vehicle-mounted unit according to the vehicle type information of the first target vehicle so as to improve the transmitting power value of the vehicle-mounted unit, improve the awakening sensitivity value of the vehicle-mounted unit and/or change the modulation coefficient.
In another aspect, the present invention further provides an on-board unit, at least comprising:
the radio frequency module is used for carrying out ETC communication with the lane system;
the IC card read-write communication module is used for reading and writing the user card;
the information storage module is used for storing the historical transaction record of the current vehicle;
the data processing module is connected with the radio frequency module, the IC card read-write communication module and the information storage module and is used for executing ETC transaction and executing the vehicle-mounted unit parameter adjusting method based on the vehicle-mounted unit;
and the power supply module is used for supplying power to the vehicle-mounted unit.
In another aspect, the invention also provides a computer-readable storage medium, on which a computer program is stored, which program, when executed by a processor, performs the steps of the method as described in any one of the above.
The invention has the beneficial effects that:
the invention provides a vehicle-mounted unit parameter adjusting method based on a transaction center or a vehicle-mounted unit, wherein the transaction center acquires issuing information and a historical transaction record of a first target vehicle, calculates to obtain a transaction success rate, a transaction overtime rate and a transaction failure type, further judges whether the vehicle has a signal shielding or interference problem, configures a new vehicle-mounted unit physical parameter table according to vehicle type information, sends the vehicle-mounted unit physical parameter table to the vehicle-mounted unit through specified equipment to modify vehicle-mounted unit parameters, and adjusts a signal receiving and sending state to avoid signal shielding or interference so as to improve the ETC transaction success rate.
Further, the vehicle-mounted unit is used for receiving and awakening an awakening signal of the lane system, identity identification information of a current vehicle is sent to the lane system for legality authentication, after the authentication is passed, the vehicle-mounted unit executes composite consumption transaction, a current consumption result is added into a historical transaction record, historical transaction success rate, transaction overtime rate and transaction failure type are obtained through calculation, whether shielding or interference problems exist in the vehicle signal or not is judged, a physical parameter table of the vehicle-mounted unit is configured according to vehicle type information and is automatically adjusted, ETC transaction success rate is improved, and lane passing efficiency is improved.
Further, the lane system issues the physical parameter table of the vehicle-mounted unit to the vehicle-mounted unit through the DSRC protocol interface in the ETC transaction process, or the mobile terminal issues the physical parameter table of the vehicle-mounted unit to the vehicle-mounted unit through the Bluetooth protocol interface when the mobile terminal is charged and eared by the user, so as to adjust the physical parameters of the vehicle-mounted unit. The method and the device have the advantages that the adjustment of the parameters of the vehicle-mounted unit is realized in multiple ways, the steps of parameter adjustment are simplified, the time is saved, and the use experience of a user is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:
FIG. 1 is a schematic diagram illustrating steps of a transaction center-based on-board unit parameter adjustment method according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a simple model for measuring and calculating parameters of a transaction center according to an embodiment of the invention.
FIG. 3 is a schematic diagram illustrating steps of a method for adjusting vehicle-mounted unit parameters based on a vehicle-mounted unit according to an embodiment of the invention.
Fig. 4 is a schematic diagram of a simple model for measuring and calculating an OBU internal parameter according to an embodiment of the present invention.
FIG. 5 is a block diagram of an on-board unit according to an embodiment of the present invention.
Fig. 6 is a schematic flow chart of a vehicle-mounted unit parameter adjustment method based on a transaction center and issuing a vehicle-mounted unit physical parameter table through a DSRC protocol interface in an embodiment of the present invention.
Fig. 7 is a schematic flow diagram of a method for adjusting vehicle-mounted unit parameters based on a transaction center and issuing a vehicle-mounted unit physical parameter table through a bluetooth protocol interface in an embodiment of the present invention.
Fig. 8 is a flowchart illustrating a method for adjusting parameters of an on-board unit based on an on-board unit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the solution according to the present invention are shown in the drawings, and other details not so related to the present invention are omitted.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
It is also noted that, unless otherwise specified, the term "coupled" is used herein to refer not only to a direct connection, but also to an indirect connection with an intermediate.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts, or the same or similar steps.
It should be emphasized that the step labels mentioned in the following are not to limit the sequence of the steps, and it should be understood that the steps may be executed according to the sequence mentioned in the embodiments, or may be executed in a sequence different from the sequence in the embodiments, or several steps may be executed at the same time.
Various vehicle types can cause attenuation or interference to communication signals of the vehicle-mounted unit due to differences of appearance structures and pasting materials, and the signal attenuation or interference of the vehicle-mounted unit can further cause the ETC transaction success rate to be reduced. In this regard, the present invention provides a transaction center-based on-board unit parameter adjustment method, which is performed at a transaction center that performs ETC transaction communication with an on-board unit mounted on a first target vehicle through a lane system. As shown in fig. 1, the method comprises the following steps S101 to S103:
step S101: acquiring issuing information and a historical transaction record of a first target vehicle, and calculating a transaction success rate and a transaction overtime rate according to the historical transaction record; wherein the issue information includes at least vehicle type information of the first target vehicle; the historical transaction record includes at least a transaction amount, a transaction success amount, a transaction failure amount, and a transaction failure type for the first target vehicle.
Step S102: and judging whether a signal shielding or interference problem exists or not according to the transaction success rate, the transaction overtime rate and the transaction failure type of the first target vehicle, and configuring a vehicle-mounted unit physical parameter table according to the transaction failure type and vehicle type information recorded in the release information under the condition that the signal shielding or interference exists.
Step S103: and the vehicle-mounted unit physical parameter table is issued to the vehicle-mounted unit of the first target vehicle through the appointed equipment so as to modify the radio frequency parameters of the vehicle-mounted unit and avoid signal shielding or interference.
In step S101, when the first target vehicle passes through the toll gate, the onboard unit mounted on the vehicle communicates with the roadside unit of the lane system via Dedicated Short Range Communication (DSRC) to complete the ETC transaction, and then the lane system uploads the current consumption result to the transaction center, and the transaction center updates the historical consumption record of the first target vehicle. The latest historical consumption record at least comprises the historical transaction quantity, the transaction success quantity and the transaction failure quantity of the first target vehicle, so that the transaction success rate is obtained by using the transaction success quantity and the transaction quantity as quotients, and the transaction failure rate is obtained by using the transaction failure quantity and the transaction quantity as quotients.
The transaction failure types at least comprise transaction overtime, vehicle-mounted unit authentication failure and insufficient balance. The transaction overtime is represented by transaction communication time exceeding a set value, the transaction overtime result is divided into transaction success and transaction failure, signal interference can be judged if the transaction is successful under the condition of transaction overtime, signal shielding can be judged if the transaction is failed under the condition of transaction overtime, and the signal interference or the signal shielding is usually caused by the influence of a vehicle type structure or a vehicle film material on a signal in a specific frequency band. Meanwhile, low awakening sensitivity, communication delay or interference of adjacent lane signals are also reasons of interference and shielding problems of the vehicle-mounted unit signals.
In step S102, the transaction success rate of the first target vehicle is calculated in step S101, whether the ECT transaction condition of the first target vehicle has a problem is determined by the transaction success rate, and whether the failure reason is due to shielding or interference of a signal when the first target vehicle communicates with the roadside unit is determined by the transaction failure type, so as to determine whether the vehicle-mounted unit parameter of the first target vehicle needs to be reconfigured. As mentioned above, the problem of shielding or interference of the on-board unit signal is caused by the influence of the vehicle type structure or the vehicle film material of the vehicle on the on-board unit signal of the specific frequency band, and the transaction signal frequency can be adjusted by adjusting the configuration parameters in the operation process of the on-board unit to avoid the problem, so that the transaction center needs to obtain the issue information of the first target vehicle in the background database, and configure the appropriate on-board unit physical parameter table for the vehicle type.
In some embodiments, determining whether a signal shielding or interference problem exists based on the transaction success rate, the transaction timeout rate, and the transaction failure type of the first target vehicle includes:
and if the transaction success rate of the first target vehicle is lower than a first set threshold value and/or the transaction timeout rate is greater than a second set threshold value, judging that the first target vehicle has the signal shielding or interference problem.
At present, the success rate of ETC transaction is generally lower than 95%, and in order to improve the situation, the first set threshold value can be set to a value higher than 95% so as to improve the lane passing efficiency. When the transaction success rate of the first target vehicle is lower than a first set threshold value, the first target vehicle is judged to have a signal shielding or interference problem, the transaction center configures new vehicle-mounted unit physical parameters according to the vehicle type information of the first target vehicle, or the transaction failure type is analyzed, when the transaction timeout rate is larger than a second set threshold value, the first target vehicle is judged to have the signal shielding or interference problem, and the transaction center configures new vehicle-mounted unit physical parameters according to the vehicle type information of the first target vehicle. It should be understood here that at least one of the two situations exists to determine the presence of signal shielding or interference and to reconfigure the on-board unit physical parameters. The transaction timeout is one of transaction failure types, and the transaction timeout rate is obtained by the quotient of the transaction timeout amount and the transaction failure amount.
In some embodiments, configuring the onboard unit physical parameter table according to the vehicle model information and the transaction failure type recorded in the release information in the presence of signal shielding or interference comprises:
and if the transaction failure types of the failure transaction records with the ratio more than the first set proportion are the problems of signal shielding or signal interference, configuring a physical parameter table of the vehicle-mounted unit according to the vehicle type information of the first target vehicle so as to improve the transmitting power value of the vehicle-mounted unit, improve the awakening sensitivity value of the vehicle-mounted unit and/or change the modulation factor.
For example, if the transaction timeout is set to a transaction failure type representing that the signal has a shielding or interference problem, the transaction center configures new physical parameters of the vehicle-mounted unit according to the vehicle type information of the first target vehicle when the transaction timeout rate is greater than a first set proportion. The physical parameter table of the vehicle-mounted unit mainly improves the transmitting power value, the awakening sensitivity value and/or the modulation factor of the vehicle-mounted unit, so that when ETC transaction is carried out, the vehicle-mounted unit and the road side unit realize high-efficiency communication and are not shielded or interfered by signals any more. For example, the larger the signal transmission power value is within a specified range, the stronger the signal strength is, the wider the coverage area is, the stronger the wall penetration capability is, and when the road side unit communicates with the road side unit, the signal is no longer shielded by the signal and is limited to insufficient signal strength or too far distance; similarly, the awakening sensitivity value is improved, and when the vehicle-mounted unit receives the awakening signal broadcasted by the lane system, the vehicle-mounted unit can be connected more quickly and then awakened, so that overtime of transaction is avoided.
Fig. 2 is a schematic diagram of a simple model for parameter measurement and calculation in a trading center, and the algorithm is arranged in a background system of the trading center. The transaction center obtains a historical transaction record and calculates to obtain a transaction success rate and a transaction overtime rate, the vehicle type information, the transaction success rate and the transaction overtime rate of a target vehicle are used as input (namely used as a standard for judging whether the target vehicle has signal shielding or interference), and a new vehicle-mounted unit physical parameter table is output through parameter measurement and calculation, wherein the new vehicle-mounted unit physical parameter table at least comprises a transmitting power value and an awakening sensitivity value of a vehicle-mounted unit.
In step S103, since the on-board unit generally does not directly communicate with the transaction center, the embodiment receives the on-board unit physical parameter table configured by the transaction center through the designated device, and issues the on-board unit to the first target vehicle, so as to achieve self-adjustment of the physical parameters of the on-board unit, and avoid signal shielding or interference. With the development of the technology, the optional range of the designated equipment is wider and wider, and the parameter table is safely, accurately and noninductively issued to the vehicle-mounted unit under the condition of not influencing the daily life of the user.
In some embodiments, the issuing the on-board unit physical parameter table to the on-board unit of the first target vehicle by the specifying device includes: in the ETC transaction process, the vehicle-mounted unit physical parameter table is issued to the vehicle-mounted unit of the first target vehicle through the lane system, and the vehicle-mounted unit receives the vehicle-mounted unit physical parameter table sent by the lane system through the DSRC protocol interface so as to adjust the physical parameters.
In ETC transaction, the vehicle-mounted unit of the vehicle communicates with the roadside unit in the lane system through DSRC, therefore, a DSRC protocol interface is added in the vehicle-mounted unit, when the vehicle passes through the roadside unit, the lane system communicates with the vehicle-mounted unit through DSRC to realize transaction, and simultaneously, a vehicle-mounted unit physical parameter table is issued to the vehicle-mounted unit through the DSRC protocol interface, and the implementation steps are as follows exemplarily:
the transaction center analyzes the current state of the vehicle-mounted unit through the historical transaction record and the issue information of the vehicle, judges whether the problem of signal shielding or interference exists or not, configures a new vehicle-mounted unit physical parameter table and issues the new vehicle-mounted unit physical parameter table to a road side unit in a lane system, wherein the road side unit issued with the vehicle-mounted unit physical parameter table is the road side unit of a toll station through which a target vehicle frequently passes or is about to pass.
When the vehicle arrives at the road side Unit, the road side Unit broadcasts an OBU (On board Unit) awakening signal to a vehicle-mounted Unit of the vehicle, awakens the OBU, reads the information of the OBU, judges whether the information of the OBU is consistent with the vehicle information stored by the lane system or not, and determines whether the vehicle is a blacklist user or not within the valid period. The communication frequency of the road side unit and the OBU is 5.8GHz; the OBU information at least comprises vehicle type, license plate number, area number and lane number.
And under the condition of no error, the lane system calls a charging module, the OBU carries out composite consumption and uploads a composite consumption result, and the lane system carries out composite consumption result authentication.
And under the condition that the authentication is legal, the OBU updates the historical transaction record and uploads the updated historical transaction record to the lane system.
And the lane system uploads the latest historical transaction record to the transaction center and simultaneously issues a new vehicle-mounted unit physical parameter table.
And the OBU receives the new physical parameter table of the vehicle-mounted unit through the DSRC protocol interface and carries out parameter self-adjustment.
In some embodiments, the issuing the on-board unit physical parameter table to the on-board unit of the first target vehicle through the specifying device includes:
the vehicle-mounted unit is connected with the vehicle-mounted unit of the first target vehicle through the Bluetooth of the mobile terminal and issues the physical parameter table of the vehicle-mounted unit to the vehicle-mounted unit, and the vehicle-mounted unit receives the physical parameter table of the vehicle-mounted unit sent by the lane system through the Bluetooth protocol interface so as to adjust the physical parameters.
The mobile terminal or called mobile communication terminal refers to a computer device that can be used in mobile, and a mobile phone is the most commonly used mobile terminal of the public at present. The vehicle-related management function and the vehicle-related service function are integrated with the mobile terminal, so that the use of a user is greatly facilitated, for example, the user selects cash or charges an ETC account through online banking through mobile phone software, after the charging, the mobile phone software can realize the earmark through Bluetooth or NFC (Near Field Communication), and the user does not need to go to an ETC offline website for operation.
In some embodiments, issuing, by the mobile terminal, the vehicle-mounted unit physical parameter table to the vehicle-mounted unit of the first target vehicle includes:
the latest physical parameter table of the vehicle-mounted unit is sent to a release system of the load service software, and the load service software is loaded on the mobile terminal; after receiving the load service request sent by the mobile terminal through the load service software, the issuing system sends the physical parameter table of the vehicle-mounted unit to the mobile terminal and forwards the physical parameter table to the vehicle-mounted unit of the first target vehicle through the mobile terminal.
Illustratively, the implementation steps are as follows:
the transaction center analyzes the current state of the vehicle-mounted unit through the historical transaction record and the issuing information of the vehicle, judges whether the problem of signal shielding or interference exists or not, configures a new physical parameter table of the vehicle-mounted unit and issues the new physical parameter table to the issuing system of the load service software.
When the user needs to carry out recharging or earmark operation, the software is communicated with the OBU through Bluetooth connection.
And the user performs services such as recharging or loading, meanwhile, the issuing system reads the current physical parameters of the OBU and judges whether the current physical parameters are consistent with the parameters in the configured new vehicle-mounted unit physical parameter table, and if the current physical parameters are different from the parameters in the configured new vehicle-mounted unit physical parameter table, the OBU is judged to need to update the physical parameters.
And the issuing system issues the load information and the latest vehicle-mounted unit physical parameter table to the load software.
And the load software issues the latest vehicle-mounted unit physical parameter table to the OBU through the Bluetooth protocol interface, and the OBU performs parameter self-adjustment.
In another aspect, the present invention provides an on-board unit parameter adjusting method based on an on-board unit, the method being executed on the on-board unit, wherein the on-board unit communicates with a transaction center for ETC transaction through a lane system, as shown in FIG. 3, the method includes the following steps S201 to S204:
step S201: and receiving and waking up a wake-up signal broadcasted by the lane system, and sending the identity identification information of the current vehicle to the lane system for legality authentication.
Step S202: under the condition that the authentication is legal, performing composite consumption transaction with the lane system, and sending a consumption result to the lane system for consumption result authentication; and in the case of passing the authentication, adding the current consumption result into the historical transaction record.
Step S203: calculating the transaction success rate and the transaction overtime rate of the current vehicle according to the updated historical transaction record of the current vehicle; the historical transaction record of the current vehicle at least comprises the transaction quantity, the transaction success quantity, the transaction failure quantity and the transaction failure type of the current vehicle; and judging whether the signal shielding or interference problem exists or not according to the transaction success rate, the transaction overtime rate and the transaction failure type of the current vehicle.
Step S204: and under the condition that signal shielding or interference exists, acquiring issuing information of the vehicle-mounted unit, configuring a physical parameter table of the vehicle-mounted unit according to the transaction failure type and vehicle type information recorded in the issuing information, and automatically adjusting to avoid the signal shielding or interference.
In step S201, in the ETC transaction, the vehicle travels to the toll station, the vehicle-mounted unit of the vehicle communicates with the roadside unit in the lane system through DSRC, the roadside unit broadcasts an awake model and a BST (Beacon Service Table) signal to the vehicle-mounted unit, the BST signal has an identifier (Beacon ID) of the roadside unit and a time of the current transaction, and meanwhile, the standard BST signal content is expanded, identification information of the roadside unit of the adjacent lane is increased, and a problem of repeated transaction caused by signal interference between multiple adjacent lanes can be avoided.
The vehicle identity information at least comprises a license plate number, a vehicle type and a vehicle color. When ETC is handled, the license plate number, the vehicle type, the vehicle color and the like of a vehicle can be written into an OBU installed on the vehicle, when the vehicle passes through an ETC channel, the vehicle information is identified through a license plate identification system installed on a lane and is compared with the vehicle identity identification information stored in the OBU for authentication, and if the information is consistent, the authentication is legal.
The composite consumption transaction mentioned in step S202 is mainly oriented to the application in the transportation field, and can meet the requirements of the highway electronic toll collection system and the urban public transportation. Compared with the common consumption, the composite consumption has composite records, and the records need to be updated every time transaction is carried out. For example, the vehicle needs to make a composite consumption transaction with a consumption amount of 0 at the entrance of the expressway, and records the entrance-related information, the entrance address, the entrance name, the time of entering the expressway, and the like of the expressway. When the vehicle travels to the exit of the highway, the recorded information needs to be read to calculate the actual consumption amount and carry out transaction, and the above actions are a complete composite consumption transaction. The composite consumption transaction realizes the function of sectional charging in the expressway or public transport.
In step S203, as shown in fig. 4, the model is a schematic diagram of the OBU built-in parameter measurement, and the algorithm is disposed in the OBU built-in module. The OBU obtains a historical transaction record and calculates to obtain a transaction success rate and a transaction overtime rate, vehicle type information, the transaction success rate and the transaction overtime rate of a target vehicle are used as input (namely used as a standard for judging whether the target vehicle has signal shielding or interference), and a new vehicle-mounted unit physical parameter table is output through a parameter adjusting algorithm, wherein the new vehicle-mounted unit physical parameter table at least comprises a transmitting power value and an awakening sensitivity value of a vehicle-mounted unit.
In step S204, the OBUs set the physical parameters configured in factory when leaving the factory, but due to the influence of factors such as the installation position, angle, car appearance structure, material, and vehicle film, the OBUs have certain differences in effect after being installed on different vehicles, which further results in situations such as overtime of transaction and low success rate of transaction. Whether the vehicle has the signal shielding or interference problem is judged by inputting the transaction success rate and the transaction overtime rate, and a new vehicle-mounted unit physical parameter table is configured according to the issuing information of the vehicle so as to realize the OBU physical parameter self-adjusting function.
In some embodiments, determining whether there is a signal shielding or interference problem according to a transaction success rate, a transaction timeout rate, and a transaction failure type of a current vehicle includes:
and if the transaction success rate of the current vehicle is lower than a first set threshold and/or the transaction timeout rate is greater than a second set threshold, judging that the current vehicle has the signal shielding or interference problem.
Configuring a physical parameter table of a vehicle-mounted unit according to the transaction failure type and vehicle type information recorded in the issue information, wherein the physical parameter table comprises the following steps:
and if the transaction failure types of the failure transaction records with the ratio more than the first set proportion are the problems of signal shielding or signal interference, configuring a physical parameter table of the vehicle-mounted unit according to the vehicle type information of the first target vehicle so as to improve the transmitting power value of the vehicle-mounted unit, improve the awakening sensitivity value of the vehicle-mounted unit and/or change the modulation factor.
In another aspect, the present invention provides an on-board unit comprising at least:
the radio frequency module is used for carrying out ETC communication with the lane system;
the IC card read-write communication module is used for reading and writing the user card;
the information storage module is used for storing historical transaction records of the current vehicle;
the data processing module is connected with the radio frequency module, the IC card read-write communication module and the information storage module and is used for executing ETC transaction and executing the vehicle-mounted unit parameter adjusting method based on the vehicle-mounted unit;
and the power supply module is used for supplying power to the vehicle-mounted unit.
As shown in fig. 5, the radio frequency module has a 5.8GHz ETC Dedicated Short Range Communication (DSRC) function, and implements the ETC communication between the OBU and the lane system; the IC card read-write communication module supports communication of a contact type IC card or a non-contact type IC card read-write card; the information storage module stores basic information and application data of the OBU, and stores transaction total number statistics, transaction failure classification statistics and an OBU physical parameter adjusting algorithm of the OBU; the data processing module receives and transmits data through the 5.8GHz radio frequency module and the IC card read-write communication module, and reads and writes data in the OBU information storage module. The data processing module can read the transaction total number statistics and the transaction failure classification statistics in the information storage module, calculate the transaction success rate and the transaction overtime rate, input a built-in adjusting algorithm together with the OBU vehicle type information, and generate an OBU physical parameter of which the result is used for adjusting.
The on-board unit also comprises, illustratively, basic functional modules, such as:
and (3) a wired interface: for the OBU to connect to external devices, typically for commissioning.
Man-machine interface/SAM/anti-dismantle device module: and functions of providing a man-machine interaction interface/safety access/detachment prevention and the like are provided.
The invention is illustrated in detail below with reference to an example:
as shown in fig. 6, an embodiment of a transaction center-based vehicle-mounted unit parameter adjustment method and issuing a vehicle-mounted unit physical parameter table through a DSRC protocol interface specifically includes the following steps:
the transaction center analyzes the OBU state according to a large amount of transaction data such as vehicle historical transaction records, issue information (vehicle type information and the like) and the like, measures and calculates appropriate physical parameters, and forms a parameter table to be issued to a toll station where the vehicle frequently runs.
And the vehicle enters a lane of the toll station, and receives and wakes up the OBU wake-up signal and the BST broadcast by the lane road side unit.
And the lane system reads the OBU information, judges the legality of the uploaded information, judges whether the OBU of the vehicle is matched with the IC card information, and judges the validity period, whether the vehicle is blacklisted and the like.
And the lane system finishes charging and performs composite consumption on the OBU, and the composite consumption result of the OBU is returned to the lane system for consumption result authentication.
And the lane system updates the information of the OBU, and uploads an update result after the update of the OBU is finished.
And the lane system issues an OBU physical parameter table to be updated through a newly added DSRC protocol interface, and uploads the transaction flow to the transaction center.
And the OBU automatically modifies the physical parameters to mediate the radio frequency function of the OBU after receiving the physical parameter table.
As shown in fig. 7, an embodiment of a method for adjusting parameters of a vehicle-mounted unit based on a transaction center and issuing a physical parameter table of the vehicle-mounted unit through a bluetooth protocol interface specifically includes the following steps:
the transaction center analyzes the OBU state according to a large amount of transaction data such as vehicle historical transaction records, issue information (vehicle type information and the like), measures and calculates appropriate physical parameters, forms a parameter table and issues the parameter table to the issue service software.
Once the user has the requirements of recharging, loading and the like, the user uses the issuing software to connect the OBU through the Bluetooth.
The OBU carries out services such as recharging and loading, and the like, simultaneously issues software to inquire the received parameter list, and judges whether the OBU exists or not and whether the OBU physical parameters need to be updated or not.
And after the loading service is finished by the issuing software, returning loading information, and simultaneously sending the physical parameter list to be modified to the OBU through a newly-added Bluetooth protocol interface.
And after the OBU finishes the service, automatically updating the physical parameter value according to the received physical parameter table.
As shown in fig. 8, an embodiment of a method for adjusting parameters of an on-board unit based on an on-board unit specifically includes the following steps:
and the vehicle enters a lane of the toll station, and receives and wakes up the OBU wake-up signal and the BST broadcast by the lane road side unit.
And the lane system reads the OBU information, judges the legality of the uploaded information, judges whether the OBU of the vehicle is matched with the IC card information, and judges the validity period, whether the OBU of the vehicle is blacklisted or not.
The lane system completes charging and composite consumption of the OBU, and the composite consumption result of the OBU is returned to the lane system for consumption result authentication and then uploaded to the transaction center.
And after completing the transaction, the OBU counts transaction success times, transaction failure times and transaction failure reasons, and calculates transaction success rate and transaction overtime rate. And then, generating new OBU physical parameters by adopting a parameter adjusting algorithm and automatically adjusting.
In summary, the invention provides a method for adjusting parameters of a vehicle-mounted unit based on a transaction center or a vehicle-mounted unit, wherein the transaction center acquires issuing information and historical transaction records of a first target vehicle, calculates and obtains a transaction success rate, a transaction overtime rate and a transaction failure type, further judges whether the vehicle has signal shielding or interference problems, configures a new vehicle-mounted unit physical parameter table according to vehicle type information, issues the vehicle-mounted unit physical parameter table to the vehicle-mounted unit through specified equipment to modify parameters of the vehicle-mounted unit, and adjusts a signal transceiving state to avoid signal shielding or interference, so as to improve the success rate of ETC transaction.
Further, the vehicle-mounted unit is used for receiving and awakening an awakening signal of the lane system, identity identification information of a current vehicle is sent to the lane system for legality authentication, after the authentication is passed, the vehicle-mounted unit executes composite consumption transaction, a current consumption result is added into a historical transaction record, historical transaction success rate, transaction overtime rate and transaction failure type are obtained through calculation, whether shielding or interference problems exist in the vehicle signal or not is judged, a physical parameter table of the vehicle-mounted unit is configured according to vehicle type information and is automatically adjusted, ETC transaction success rate is improved, and lane passing efficiency is improved.
Further, the lane system issues the physical parameter table of the vehicle-mounted unit to the vehicle-mounted unit through the DSRC protocol interface in the ETC transaction process, or the mobile terminal issues the physical parameter table of the vehicle-mounted unit to the vehicle-mounted unit through the Bluetooth protocol interface when the mobile terminal is charged and eared by the user, so as to adjust the physical parameters of the vehicle-mounted unit. The method and the device have the advantages that the adjustment of the parameters of the vehicle-mounted unit is realized in multiple ways, the steps of parameter adjustment are simplified, the time is saved, and the use experience of a user is improved.
In accordance with the above method, the present invention further provides an apparatus comprising a computer device, the computer device comprising a processor and a memory, the memory storing computer instructions, the processor being configured to execute the computer instructions stored in the memory, the apparatus implementing the steps of the method when the computer instructions are executed by the processor.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the foregoing steps of the edge computing server deployment method. The computer readable storage medium may be a tangible storage medium such as Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, floppy disks, hard disks, removable storage disks, CD-ROMs, or any other form of storage medium known in the art.
Those of ordinary skill in the art will appreciate that the various illustrative components, systems, and methods described in connection with the embodiments disclosed herein may be implemented as hardware, software, or combinations of both. Whether this is done in 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 invention. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps, after comprehending the spirit of the present invention.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments in the present invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A transaction center-based on-board unit parameter adjustment method, characterized in that the method is performed at a transaction center that communicates an ETC transaction with an on-board unit loaded on a first target vehicle through a lane system, the method comprising the steps of:
acquiring issuing information and a historical transaction record of the first target vehicle, and calculating a transaction success rate and a transaction timeout rate according to the historical transaction record; the release information at least comprises vehicle type information of a first target vehicle; the historical transaction record at least comprises a transaction amount, a transaction success amount, a transaction failure amount and a transaction failure type of the first target vehicle;
judging whether a signal shielding or interference problem exists or not according to the transaction success rate, the transaction overtime rate and the transaction failure type of the first target vehicle, and configuring a vehicle-mounted unit physical parameter table according to the transaction failure type and vehicle type information recorded in the release information under the condition that the signal shielding or interference exists;
and issuing the vehicle-mounted unit physical parameter table to the vehicle-mounted unit of the first target vehicle through a designated device so as to modify the radio frequency parameters of the vehicle-mounted unit and avoid signal shielding or interference.
2. The trading center-based parameter adjustment method for vehicle-mounted units according to claim 1, wherein the issuing of the vehicle-mounted unit physical parameter table to the vehicle-mounted unit of the first target vehicle through a designated device comprises:
and in the ETC transaction process, the vehicle-mounted unit physical parameter table is issued to the vehicle-mounted unit of the first target vehicle through a lane system, and the vehicle-mounted unit receives the vehicle-mounted unit physical parameter table sent by the lane system through a DSRC protocol interface so as to adjust physical parameters.
3. The trading center-based parameter adjustment method for vehicle-mounted units according to claim 1, wherein the issuing of the vehicle-mounted unit physical parameter table to the vehicle-mounted unit of the first target vehicle through a designated device comprises:
the vehicle-mounted unit is connected with a vehicle-mounted unit of a first target vehicle through Bluetooth of the mobile terminal and issues the vehicle-mounted unit physical parameter table to the vehicle-mounted unit, and the vehicle-mounted unit receives the vehicle-mounted unit physical parameter table sent by the lane system through a Bluetooth protocol interface so as to adjust physical parameters.
4. The trading center-based parameter adjustment method for vehicle-mounted units according to claim 3, wherein the issuing of the vehicle-mounted unit physical parameter table to the vehicle-mounted unit of the first target vehicle via the mobile terminal comprises:
the latest physical parameter table of the vehicle-mounted unit is sent to a distribution system of load service software, and the load service software is loaded on the mobile terminal; after the issuing system receives the load service request sent by the mobile terminal through the load service software, the issuing system sends the physical parameter table of the vehicle-mounted unit to the mobile terminal and forwards the physical parameter table to the vehicle-mounted unit of the first target vehicle through the mobile terminal.
5. The method for adjusting the parameters of the trading center-based on-board unit according to claim 1, wherein the step of determining whether there is a signal shielding or interference problem according to the trading success rate, the trading timeout rate and the trading failure type of the first target vehicle comprises the steps of:
and if the transaction success rate of the first target vehicle is lower than a first set threshold value and/or the transaction timeout rate is larger than a second set threshold value, judging that the first target vehicle has a signal shielding or interference problem.
6. The method as claimed in claim 1, wherein configuring the physical parameter table of the on-board unit according to the vehicle type information and the transaction failure type recorded in the issue information in the presence of signal shielding or interference comprises:
and if the transaction failure types of the failure transaction records with the failure transaction records more than a first set proportion are the problems of signal shielding or signal interference, configuring the physical parameter table of the vehicle-mounted unit according to the vehicle type information of the first target vehicle so as to improve the transmitting power value of the vehicle-mounted unit, improve the awakening sensitivity value of the vehicle-mounted unit and/or change the modulation coefficient.
7. An on-board unit parameter adjustment method based on an on-board unit, the method being performed on the on-board unit, the on-board unit being in ETC transaction communication with a transaction center through a lane system, the method comprising the steps of:
receiving and waking up a wake-up signal broadcasted by the lane system, and sending the identity identification information of the current vehicle to the lane system for legality authentication;
under the condition that the authentication is legal, performing composite consumption transaction with the lane system, and sending a consumption result to the lane system for consumption result authentication; adding the current consumption result into a historical transaction record under the condition that the authentication is passed;
calculating the transaction success rate and the transaction overtime rate of the current vehicle according to the updated historical transaction record of the current vehicle; the historical transaction record of the current vehicle at least comprises the transaction quantity, the transaction success quantity, the transaction failure quantity and the transaction failure type of the current vehicle; judging whether a signal shielding or interference problem exists according to the transaction success rate, the transaction overtime rate and the transaction failure type of the current vehicle;
and under the condition of signal shielding or interference, acquiring issuing information of the vehicle-mounted unit, configuring a physical parameter table of the vehicle-mounted unit according to the transaction failure type and vehicle type information recorded in the issuing information, and automatically adjusting to avoid the signal shielding or interference.
8. The vehicle-mounted unit parameter adjusting method based on the vehicle-mounted unit according to claim 7, wherein the step of judging whether a signal shielding or interference problem exists according to the transaction success rate, the transaction timeout rate and the transaction failure type of the current vehicle comprises the following steps:
if the transaction success rate of the current vehicle is lower than a first set threshold and/or the transaction timeout rate is larger than a second set threshold, judging that the current vehicle has a signal shielding or interference problem;
configuring a physical parameter table of a vehicle-mounted unit according to the transaction failure type and vehicle type information recorded in the issue information, wherein the physical parameter table comprises the following steps:
and if the transaction failure types of the failure transaction records with the failure transaction records more than a first set proportion are the problems of signal shielding or signal interference, configuring the physical parameter table of the vehicle-mounted unit according to the vehicle type information of the first target vehicle so as to improve the transmitting power value of the vehicle-mounted unit, improve the awakening sensitivity value of the vehicle-mounted unit and/or change the modulation coefficient.
9. An on-board unit, characterized by comprising at least:
the radio frequency module is used for carrying out ETC communication with the lane system;
the IC card read-write communication module is used for reading and writing the user card;
the information storage module is used for storing historical transaction records of the current vehicle;
a data processing module, connected to the radio frequency module, the IC card read-write communication module and the information storage module, for executing an ETC transaction and executing the on-board unit parameter adjusting method according to any one of claims 7 to 8;
and the power supply module is used for supplying power to the vehicle-mounted unit.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117560753A (en) * | 2024-01-11 | 2024-02-13 | 广州铭创通讯科技有限公司 | OBU (on-board unit) false wake-up and portal transaction success rate optimization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117560753A (en) * | 2024-01-11 | 2024-02-13 | 广州铭创通讯科技有限公司 | OBU (on-board unit) false wake-up and portal transaction success rate optimization method |
| CN117560753B (en) * | 2024-01-11 | 2024-03-12 | 广州铭创通讯科技有限公司 | OBU (on-board unit) false wake-up and portal transaction success rate optimization method |
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