CN109215146A - A kind of method for sending information for ETC charging system, apparatus and system - Google Patents
A kind of method for sending information for ETC charging system, apparatus and system Download PDFInfo
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- CN109215146A CN109215146A CN201710542728.0A CN201710542728A CN109215146A CN 109215146 A CN109215146 A CN 109215146A CN 201710542728 A CN201710542728 A CN 201710542728A CN 109215146 A CN109215146 A CN 109215146A
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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
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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- Devices For Checking Fares Or Tickets At Control Points (AREA)
Abstract
The embodiment of the present invention provides a kind of method for sending information for ETC charging system, apparatus and system.Wherein the method includes synchronization modules to receive synchronization signal, wherein the synchronization signal, includes at least time tag, and issue time signal to main control chip by the parsing to the time tag；The main control chip carries out clock alignment according to the time signal received, and controls sending module according to pre-determined synchronization frequency and send Transaction Information.Synchronization module provided in an embodiment of the present invention analyzes the synchronization signal received, sending time signal to the main control chip calibrates cycle accurate, Transaction Information is sent further according to predeterminated frequency, to the interference for the Transaction Information for sending on board unit by the roadside unit of adjacent lane when receiving Transaction Information, and then promote the reliability of ETC lane system transaction.
Description
Technical field
The present embodiments relate to ETC charging system technical field more particularly to a kind of information for ETC charging system
Sending method, apparatus and system.
Background technique
With the end of highway ETC national network, each province and city have carried out energetically the current theory of high speed and policy
Popularization and support, the lane ETC of high speed charge station is more and more like the mushrooms after rain, in the same direction continuous two-way traffic, three lanes and
Above lane ETC also will or have become normality.However, for the electronics largely used in ETC charging system in the market
Tag types and transaction antenna performance, in the prevalence of false wake-up, miss the monkey chatters problems such as transaction, directly affect driving and use
The current experience at family.
The method for solving the problems, such as monkey chatter at present, most basic method are the overlay areas of adjustment transaction antenna, make it
Signal cover only covers this lane.But it is limited to the propagation characteristic of radiofrequency signal and the individual difference of electronic tag, technology
Difficulty is higher, versatility is poor.Another method is that the effective coverage of transaction antenna is adjusted using phased array, makes its transaction area
It is synchronous with the holding of the position of electronic tag.This method technical difficulty is higher, hardware configuration is complicated, cost price is larger.
And hardware synchronization is carried out to more roadside units using synchronizer, although make more transaction antennas while sending data
Preferable it can must solve the problems, such as monkey chatter.But this method is easy to be likely to occur time damage in transmission process by external disturbance
Consumption, degree of stability is poor, synchronization accuracy is limited.
Summary of the invention
The embodiment of the present invention provides a kind of method for sending information for ETC charging system, apparatus and system, to solve
False wake-up present in ETC charging system, accidentally the monkey chatters problem such as transaction in the prior art.
In a first aspect, the embodiment of the invention provides a kind of method for sending information for ETC charging system, comprising:
Synchronization module receives synchronization signal, wherein the synchronization signal, includes at least time tag, and by it is described when
Between label parsing issue time signal to main control chip；
The main control chip carries out clock alignment according to the time signal received, and is controlled and sent out according to pre-determined synchronization frequency
Module is sent to send Transaction Information.
Second aspect, the embodiment of the invention provides a kind of information transmitting apparatus for ETC charging system, comprising:
Synchronization module wherein the synchronization signal, includes at least time tag for receiving synchronization signal, and by pair
The parsing of the time tag issues time signal to main control chip；
The main control chip, for carrying out clock alignment according to the time signal received, and according to pre-determined synchronization frequency
It controls sending module and sends Transaction Information.
The third aspect, the embodiment of the invention provides a kind of information transmitting systems for ETC charging system, including at least
Two information transmitting apparatus and synchronizer are sent out wherein the synchronizer is used to for synchronization signal to be sent to the information
Device is sent, is synchronized so that all information transmitting apparatus carry out clock simultaneously, and then information is sent according to pre-determined synchronization Frequency Synchronization.
Method for sending information provided in an embodiment of the present invention for ETC charging system, apparatus and system are same by increasing
Module is walked to analyze the synchronization signal received, sending time signal to the main control chip calibrates cycle accurate,
Transaction Information is sent further according to predeterminated frequency, to make on board unit when receiving Transaction Information not by the trackside list of adjacent lane
The interference for the Transaction Information that member is sent, and then promote the reliability of ETC lane system transaction.
Detailed description of the invention
Fig. 1 is the method for sending information flow diagram that the embodiment of the present invention is used for ETC charging system；
Fig. 2 is the information transmitting apparatus for ETC charging system according to an embodiment of the present invention；
Fig. 3 is another information transmitting apparatus for ETC charging system according to an embodiment of the present invention；
Fig. 4 is the information transmitting system for being used for ETC charging system according to an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the method for sending information flow diagram that the embodiment of the present invention is used for ETC charging system, as shown in Figure 1, institute
The method of stating includes:
Step S01, synchronization module receives synchronization signal, wherein the synchronization signal, includes at least time tag, and pass through
Time signal is issued to main control chip to the parsing of the time tag；
Step S02, the described main control chip carries out clock alignment according to the time signal received, and according to pre-determined synchronization frequency
Rate controls sending module and sends Transaction Information.
In ETC multilane townhouse application system, in order to guarantee that the on board unit in this lane is receiving this lane
Roadside unit send Transaction Information when, will not by the roadside unit of adjacent lane send adjacent Transaction Information interfere, this
Inventive embodiments make the roadside unit synchronized transmissions buying signals in all lanes in system by simultaneously operating, due to described vehicle
The roadside unit in road at a distance from the on board unit less than the adjacent lane roadside unit and the on board unit away from
From, so when the on board unit is when receiving the Transaction Information and the adjacent Transaction Information, the Transaction Information
Signal strength and the difference in signal strength of the adjacent Transaction Information are higher than channel and inhibit ratio, at this time it is believed that the adjacent friendship
Easy information can not generate substantive interference to the Transaction Information, that is, the on board unit can only identify the transaction
Information is simultaneously correctly parsed, and the adjacent Transaction Information is then perceived as interfering.
Therefore the information sending instant needs of all roadside units are accurately synchronized.The embodiment of the present invention first passes through
Synchronization module in roadside unit receives synchronization signal, wherein including at least in the synchronization signal has a time tag.
Further, the synchronization signal can be satellite-signal, and correspondingly, the synchronization module is GNSS module.
The source of the synchronization signal can be satellite, for example, global position system GPS, Beidou satellite navigation system BDS,
GLONASS GLONASS and galileo satellite navigation system Gallieo, can be one such or a variety of combination.This
The synchronization module of Shi Suoshu is specially GNSS (Global Navigation Satellite System, global navigational satellite system
System) module, the GNSS module passes through the time tag for including in the satellite-signal that receives and obtains precise time.
Certainly, the synchronization signal can be from that the synchronizer is placed in all roads in local synchronizer
To allow all roadside units that can receive identical synchronization in synchronization in the range of side unit can receive
Signal, to meet the requirement of precise synchronization.In the following embodiments, in order to express easily, the source of the synchronization signal
By taking satellite as an example.
The synchronization module passes through the solution to time tag in the synchronization signal after receiving the synchronization signal
Analysis can issue time signal to the main control chip.Wherein the transmission frequency of the time signal can be come according to actual needs
It is adjusted, such as transmission per second is primary, or sends once per minute, can do specific tune according to actual needs
It is whole.
The main control chip will do it clock alignment after being connected to the time signal.Then the main control chip is with regard to root
According to the clock and pre-determined synchronization frequency after calibration, such as the Transaction Information of transmission in every 0.1 second or each second, at each
The Transaction Information needed is sent at the time of regulation to the sending module.Since the precision of the time signal is according to specific equipment
Performance can be up to several hundred nanoseconds or even tens nanoseconds, so can guarantee the synchrotimer in adjacent multiple lanes completely
Precise synchronization.
The sending module executes send operation at once after receiving the Transaction Information.If owned in ETC system
The synchrotimer of main control chip in roadside unit can accurately reset, then according to identical pre-determined synchronization frequency
Guarantee, all roadside units send identical at the time of Transaction Information.
The embodiment of the present invention sends time signal by analysis of the synchronization module to synchronization signal, to main control chip, thus
Reach the cycle accurate calibration to main control chip, so that the main control chip control sending module be made to exist according to pre-determined synchronization frequency
Transaction Information is sent at the time of accurate, so that on board unit be made not sent out by the roadside unit of adjacent lane when receiving Transaction Information
The interference of the adjacent Transaction Information sent, and then promote the reliability of ETC lane system transaction.
Based on the above embodiment, further, the time signal includes but is not limited to time service pulse and/or standard time
Information.
When the synchronization module sends time signal to the main control chip according to the synchronization signal received, according to institute
The difference of synchronization module with the synchronization signal received is stated, the time signal that the synchronization module generates also can be according to different need
It asks and the time signal of sending is adjusted, wherein just including time service pulse and/or standard time information.
Wherein the time service pulse is the pulse signal issued by certain voltage amplitude, and the main control chip is receiving
After the time service pulse, the synchrotimer in main control chip can be resetted.By by all trackside lists on the lane ETC
The synchrotimer in main control chip in member resetted simultaneously it is synchronous to achieve the purpose that, to make the main control chip again
The transmission that the sending module carries out Transaction Information is controlled according to pre-determined synchronization frequency and synchrotimer.
And when the time signal that the main control chip receives is standard time information, such as Coordinated Universal Time(UTC) UTC, it is main
Internal clocking in control chip can be synchronized with standard time information, to reach all roadside units on the lane ETC
In main control chip in the synchronous purpose of internal clocking, the main control chip comes further according to pre-determined synchronization frequency and internal clocking
Control the transmission that the sending module carries out Transaction Information.
Certain synchronization module can also send time service pulse and standard time information simultaneously, keep the main control chip same
When synchronize timer reset it is synchronous with internal clocking.To make the main control chip according to pre-determined synchronization frequency control
When sending module processed sends Transaction Information, with reference to synchrotimer and internal clocking.
Below using synchronization signal as satellite-signal, synchronization module is for GNSS module, the GNSS module is according to reception
PPS time service pulse can be issued to the main control chip to satellite-signal, wherein the GNSS module output end and the master control core
The connection of piece can be the Hardware I/O by the main control chip, SPI, I2C, one of UART and USB, for the side of statement
Just, below by taking IO as an example.The I/O pin of the main control chip in received PPS time service pulse can at once to synchrotimer into
Row resets.The main control chip controls sending module further according to pre-determined synchronization frequency and synchrotimer and sends Transaction Information.
In order to express easily in the following embodiments, all using synchronization signal as satellite-signal, synchronization module is GNSS module, described to award
When signal be time service pulse for.
Synchronization module in the embodiment of the present invention can be by master control core according to the difference of specific equipment and demand
Piece sends time service pulse and/or standard time information to carry out clock alignment to main control chip, will be on the lane ETC to reach
The synchrotimer in main control chip in all roadside units and/or the purpose of internal clocking synchronization, to improve the lane ETC
Transaction reliability.
Based on the above embodiment, further, the method also includes:
Control module receives the Transaction Information sent by lane unit, and is sent to the main control chip；
Receiving module receives the response message sent by the on board unit；
The response message is sent to the control module by the main control chip；
The response message received is sent to the lane unit by the control module.
It is sent to the Transaction Information of the on board unit for the roadside unit, is derive specifically from lane unit.
By lane unit according to the concrete condition on current lane, for example, the position of on board unit and the information exchange on board unit
Process, the control module that the Transaction Information that sends will be needed to be sent to by exclusive data communication mode the roadside unit.
The control module is sent to the master control core after receiving the Transaction Information, then by the Transaction Information
Piece.Wherein the control module can both be integrated with other modules of the roadside unit, form an apparatus for measuring road,
It can also be individually composed an independent controller, be attached with apparatus for measuring road by dedicated data communication mode.Under
In the embodiment in face, for ease of description, for the control module is integrated apparatus for measuring road.
The main control chip controls the sending module according to the Transaction Information received and is sent.
The on board unit is possible to also receive adjacent lane simultaneously when receiving the Transaction Information at this time
Adjacent Transaction Information.But since Transaction Information signal strength is much higher than the signal strength of adjacent Transaction Information, so the vehicle
Carrier unit can only identify and parse Transaction Information.The on board unit, can basis after parsing to the Transaction Information
Itself the case where, sends response message to the receiving module.
The response message can be transmitted to the master control core after receiving the response message by the receiving module
Piece, then the response message is sent to the control module by the main control chip.Wherein according to main control chip and control mould
The response message received directly can also be sent to the control mould by the difference of block Functional Design, the receiving module
Block.
The control module believes the response after receiving the response message, then through exclusive data communication mode
Breath sends lane unit.The lane unit determines to operate in next step further according to the parsing to the response message received,
Such as the Transaction Information of next step is sent to the on board unit, or determine to complete this transaction thus to other on board units
Send Transaction Information.
The embodiment of the present invention is used to and lane list by joined a control module and receiving module in roadside unit
Member is communicated, and to receive the Transaction Information sent by lane unit, is also used to the on board unit according to the friendship
The response message that easy information is sent is sent to the lane unit by roadside unit, more preferable can must improve ETC lane system
The reliability of information exchange.
Based on the above embodiment, further, the method also includes:
The main control chip controls the sending module according to pre-determined synchronization frequency and sends interference information.
When the lane unit detects that on board unit enters the signal transmitting coverage area of the roadside unit,
The lane unit will send Transaction Information to the controller, and the Transaction Information, which includes at least, at this time wake-up signal,
For waking up the on board unit, and after receiving the response message that the on board unit is sent, further according to the sound
Information is answered to send Transaction Information.Wherein lane unit detection on board unit method can there are many kinds of, usual way
Exactly in the coverage area of signal transmitting or the on board unit enter before the coverage area be arranged coil or
Grating is to have detected whether that on board unit passes through.
And due to the response message need by the receiving module, the main control chip, the control module biography
It is defeated to reach the lane unit, then believed by the lane unit according to the transaction that the analysis to the response message obtains next step
Breath, then the main control chip is reached by the control module, then controlled by the main control chip according to synchronizing frequency and send mould
Block is sent to the on board unit.This series of operating process may be unable to satisfy the requirement of synchronizing frequency, also
It is before the arrival of sending instant next time, the Transaction Information of next step possibly can not reach main control chip, to make the master control
Chip does not have the transmission of available information next time according to synchronizing frequency progress.At this point, main control chip in order to allow on board unit not
It will receive the influence of the Transaction Information of neighboring trace roadside unit transmission, one can be sent in the sending instant control sending module of next time
Interference information, the interference information are specially the garbage signal that cannot be parsed by board unit.At this point, even if the on board unit
The adjacent Transaction Information is had received, but due to also having received interference information simultaneously, so adjacent transaction letter can not be identified
Breath is to be parsed, so as to avoid the generation of transaction errors.
According to the difference of the main control chip and the design scheme of control module, the interference information is also possible to by described
Control module is generated due to being not received by the next step Transaction Information of the lane unit, is then forwarded to the master control core
Piece, then the sending module is controlled to be sent by the main control chip.
And after the lane unit terminates the transaction on board unit, if not detecting next vehicle-mounted list at this time
Member enters in the coverage area of the signal transmitting, and the lane unit would not send transaction letter to the control module
Breath, and the main control chip will not receive the Transaction Information sent by control module, and then will not control the transmission mould
Block sends Transaction Information.Certainly according to the difference of specific design scheme, the main control chip can also not examined in the lane
Sending module is controlled in the case where measuring on board unit, and the Transaction Information comprising wake-up signal is persistently sent according to synchronizing frequency.
The meeting in the case where being not timely received the Transaction Information of next step of main control chip described in the embodiment of the present invention
The sending module is controlled according to pre-determined synchronization frequency and sends interference information, to avoid transaction errors to a certain extent
Occur, improves the reliability of transaction.
Fig. 2 is the information transmitting apparatus for ETC charging system according to an embodiment of the present invention, as described in Figure 2, the dress
It sets including synchronization module 12, main control chip 13 and sending module 14, in which:
The synchronization module 12 is for receiving synchronization signal, wherein the synchronization signal, includes at least time tag, and lead to
It crosses the parsing to the time tag and issues time signal to the main control chip 13；The main control chip 13 is used for according to reception
The time signal arrived carries out clock alignment, and controls sending module 14 according to pre-determined synchronization frequency and send Transaction Information.
Specifically, the synchronization module 12 can receive the synchronization signal, wherein the synchronization signal includes at least the time
Label.
Further, the synchronization signal can be satellite-signal, and correspondingly, the synchronization module is GNSS module.
The source of the synchronization signal can be satellite and be also possible to local synchronizing device.When coming for the synchronization signal
When source is satellite, such as global position system GPS, Beidou satellite navigation system BDS, GLONASS GLONASS and Galileo are defended
Star navigation system Gallieo, can be one such or a variety of combination.The synchronization module is specially GNSS mould at this time
Block, the GNSS module pass through the time tag for including in the satellite-signal received and obtain precise time.In following implementation
In example, in order to express easily, the source of the synchronization signal is by taking satellite as an example.
The synchronization module 12, can be to the main control chip after through the parsing to time tag in the synchronization signal
13 issue time signal.Wherein the transmission frequency of the time signal can be adjusted according to different actual needs, example
It is sent once as per second, or transmission is primary per minute, and specific adjustment can be done according to actual demand.
The sending module 14 can be radio-frequency antenna or phased array antenna.Specific equipment can be according to application scenarios
It is different and specifically design.
The main control chip 13 will do it clock alignment after being connected to the time signal.Then the main control chip 13
Just according to pre-determined synchronization frequency, such as the Transaction Information of transmission in every 0.1 second or each second, at the time of each regulation to
The sending module 14 sends the Transaction Information needed.Since the precision of the time signal can be with according to the performance of specific equipment
Up to several hundred nanoseconds or even tens nanoseconds, so can guarantee the synchrotimer precise synchronization in adjacent multiple lanes completely.
The sending module 14 executes send operation at once after receiving the Transaction Information.If in ETC system
The clock of main control chip 13 in all roadside units can accurate calibration, then according to identical pre-determined synchronization frequency
Guarantee, all roadside units send identical at the time of Transaction Information.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
The embodiment of the present invention sends time signal by analysis of the synchronization module 12 to synchronization signal, to main control chip 13,
To reach the cycle accurate calibration to main control chip 13, so that the main control chip 13 be made to control sending module 14 accurate
Moment sends Transaction Information, thus the phase for sending on board unit by the roadside unit of adjacent lane when receiving Transaction Information
The interference of adjacent Transaction Information, and then promote the reliability of ETC lane system transaction.
According to above-described embodiment, further, the time signal includes but is not limited to time service pulse or standard time letter
Breath.
When the synchronization module sends time signal to the main control chip according to the synchronization signal received, according to institute
The difference of synchronization module with the synchronization signal received is stated, the time signal that the synchronization module generates also can be according to different need
It asks and the time signal of sending is adjusted, wherein just including time service pulse and/or standard time information.
Wherein the time service pulse is the pulse signal issued by certain voltage amplitude, and the main control chip is receiving
After the time service pulse, the synchrotimer in main control chip can be resetted.By by all trackside lists on the lane ETC
The synchrotimer in main control chip in member resetted simultaneously it is synchronous to achieve the purpose that, to make the main control chip again
The transmission that the sending module carries out Transaction Information is controlled according to pre-determined synchronization frequency and synchrotimer.
And when the time signal that the main control chip receives is standard time information, such as Coordinated Universal Time(UTC) UTC, it is main
Internal clocking in control chip can be synchronized with standard time information, to reach all roadside units on the lane ETC
In main control chip in the synchronous purpose of internal clocking, the main control chip comes further according to pre-determined synchronization frequency and internal clocking
Control the transmission that the sending module carries out Transaction Information.
Certain synchronization module can also send time service pulse and standard time information simultaneously, keep the main control chip same
When synchronize timer reset it is synchronous with internal clocking.To make the main control chip according to pre-determined synchronization frequency control
When sending module processed sends Transaction Information, with reference to synchrotimer and internal clocking.
Below using synchronization signal as satellite-signal, synchronization module is for GNSS module, the GNSS module is according to reception
The satellite-signal arrived can issue PPS time service pulse to the main control chip, wherein the GNSS module output end and the master control
The connection of chip can be the Hardware I/O by the main control chip, SPI, I2C, one of UART and USB, for the side of statement
Just, below by taking IO as an example.The I/O pin of the main control chip in received PPS time service pulse can at once to synchrotimer into
Row resets.The main control chip controls sending module further according to pre-determined synchronization frequency and synchrotimer and sends Transaction Information.
In order to express easily in the following embodiments, all using synchronization signal as satellite-signal, synchronization module is GNSS module, described to award
When signal be time service pulse for.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
Synchronization module in the embodiment of the present invention can be by master control core according to the difference of specific equipment and demand
Piece sends time service pulse and/or standard time information to carry out clock alignment to main control chip, will be on the lane ETC to reach
The synchrotimer in main control chip in all roadside units and/or the purpose of internal clocking synchronization, to improve the lane ETC
Transaction reliability.
Fig. 3 is another information transmitting apparatus for ETC charging system according to an embodiment of the present invention, and described device includes
Receiving module 11, synchronization module 12, main control chip 13, sending module 14 and control module 15, wherein the control module 15 is used
In the Transaction Information that reception is sent by lane unit, and it is sent to the main control chip 13；The receiving module 11 is used for
Receive the response message sent by the on board unit；Correspondingly, the main control chip 13 is also used to send out the response message
Give the control module 15；It is single that the response message that the control module 15 is also used to receive is sent to the lane
Member.
It is sent to the Transaction Information of the on board unit for the roadside unit, is derive specifically from lane unit.
By lane unit according to the concrete condition on current lane, for example, the position of on board unit and the information exchange on board unit
Process, the control module 15 that the Transaction Information that sends will be needed to be sent to by exclusive data communication mode the roadside unit.
The control module 15 is sent to the master control core after receiving the Transaction Information, then by the Transaction Information
Piece 13.Wherein the control module 15 can both be integrated with other modules of the roadside unit, form a trackside
Device can also be individually composed an independent controller, be attached with apparatus for measuring road by dedicated data communication mode.
In the following embodiments, for ease of description, for the control module 15 is integrated into apparatus for measuring road.
The main control chip 13 controls the sending module 14 further according to the Transaction Information received to be sent out
It send.
The control module is also used to that the information passed through is encrypted and decrypted, it is possible to be added one in roadside unit
A memory module being connected with the control module is used to store the data including security key.Certain memory module
It can also be directly integrated into control module.For ease of description, in the following embodiments, all the memory module is integrated
Onto control module.
It is not related to the improvement of the method and computer program to the control module in embodiments of the present invention.
The on board unit can also may receive the phase of adjacent lane when receiving the Transaction Information simultaneously at this time
Adjacent Transaction Information.But since Transaction Information signal strength is much higher than the signal strength of adjacent Transaction Information, so described vehicle-mounted
Unit can only identify and parse Transaction Information.The on board unit, can be according to certainly after parsing to the Transaction Information
The case where body, sends response message to the receiving module 11.
The response message can be transmitted to the master control core after receiving the response message by the receiving module 11
Piece 13, then the response message is sent to the control module 15 by the main control chip 13.Wherein according to main control chip 13
With the difference of 15 Functional Design of control module, the receiving module 11 can also directly be sent the response message received
To the control module 15.
The control module 15 is after receiving the response message, then passes through exclusive data communication mode for the response
Information sends lane unit.The lane unit determines to grasp in next step further according to the parsing to the response message received
Work, such as to the Transaction Information of on board unit transmission next step, or determine to complete this transaction thus to other vehicle-mounted
Unit sends Transaction Information.
The receiving module 11 is identical as the sending module 14, is all radio-frequency antenna or phased array antenna, and can
It is integrated into the same duplex simultaneous two-way antenna for transmitting-receiving, receiving antenna and transmission antenna can also be divided into, to be connect described in realization
Receive the function of module 11 and sending module 14.Specific equipment can specifically be designed according to the difference of application scenarios.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
The embodiment of the present invention is used to and vehicle by joined a control module 15 and receiving module 11 in roadside unit
Road unit is communicated, and to receive the Transaction Information sent by lane unit, is also used to the on board unit according to institute
The response message for stating Transaction Information transmission is received by receiving unit 11, and is sent to the lane unit by control module 15,
It can the more preferable reliability that must improve ETC lane system information exchange.
Based on the above embodiment, further, the main control chip, which is also used to be controlled according to pre-determined synchronization frequency, sends mould
Block sends interference information.
When the lane unit detects that on board unit enters the coverage area of the roadside unit signal transmitting,
The lane unit will send Transaction Information to the controller, and the Transaction Information, which includes at least, at this time wake-up signal,
For waking up the on board unit, and after receiving the response message that the on board unit is sent, further according to the sound
Information is answered to send Transaction Information.Wherein lane unit detection on board unit method can there are many kinds of, usual way
Exactly in the coverage area of signal transmitting or the on board unit enter before the coverage area be arranged coil or
Grating is to have detected whether that on board unit passes through.
And due to the response message need by the receiving module, the main control chip, the control module biography
It is defeated to reach the lane unit, then believed by the lane unit according to the transaction that the analysis to the response message obtains next step
Breath, then the main control chip is reached by the control module, then controlled by the main control chip according to synchronizing frequency and send mould
Block is sent to the on board unit.This series of operating process may be unable to satisfy the requirement of synchronizing frequency, also
It is before the arrival of sending instant next time, the Transaction Information of next step possibly can not reach main control chip, to make the master control
Chip does not have the transmission of available information next time according to synchronizing frequency progress.At this point, main control chip in order to allow on board unit not
It will receive the influence of the Transaction Information of neighboring trace roadside unit transmission, one can be sent in the sending instant control sending module of next time
Interference information, the interference information are specially the garbage signal that cannot be parsed by board unit.At this point, even if the on board unit
The adjacent Transaction Information is had received, but due to also having received interference information simultaneously, so adjacent transaction letter can not be identified
Breath is to be parsed, so as to avoid the generation of transaction errors.
According to the difference of the main control chip and the design scheme of control module, the interference information is also possible to by described
Control module is generated due to being not received by the next step Transaction Information of the lane unit, is then forwarded to the master control core
Piece, then the sending module is controlled to be sent by the main control chip.
After the lane unit terminates the transaction on board unit, if not detecting next on board unit at this time
It entering in the coverage area of the signal transmitting, the lane unit would not send Transaction Information to the control module,
And the main control chip will not receive the Transaction Information sent by control module, and then will not control the sending module hair
Send Transaction Information.Certainly according to the difference of specific design scheme, the main control chip can also not detect in the lane
Sending module is controlled in the case where on board unit, and the Transaction Information comprising wake-up signal is persistently sent according to synchronizing frequency.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
Main control chip described in the embodiment of the present invention can be according to pre-determined synchronization in the case where being not received by Transaction Information
Frequency controls the sending module transmission interference information and improves to avoid the generation of transaction errors to a certain extent
The reliability of transaction.
Fig. 4 is the information transmitting system for being used for ETC charging system according to an embodiment of the present invention, as shown in figure 4, the system
Including information transmitting apparatus 21 described at least two above-described embodiments and synchronizer 22, wherein the synchronizer 22 is used for
Synchronization signal is sent to the information transmitting apparatus 21, is synchronized so that all information transmitting apparatus carry out clock simultaneously, in turn
Information is sent according to pre-determined synchronization Frequency Synchronization.
The sending device 21 will do it clock alignment after receiving the synchronization signal sent by the synchronizer 22.Specifically
It is to carry out resetting and/or calibrating internal clocking to synchrotimer according to the different manifestations of equipment and demand.To
Reach the mesh of synchrotimer and/or internal clocking synchronization in the main control chip in all roadside units on the lane ETC
's.Then the sending device 21 is just according to synchrotimer and/or internal clocking and pre-determined synchronization frequency, in each rule
The Transaction Information needed or interference information are sent at the time of determining.
Wherein the synchronizer 22 can be satellite or local synchronization device.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
Analysis of the embodiment of the present invention by the sending device 21 to the synchronization signal received carries out cycle accurate school
Standard, to send Transaction Information at the time of accurate.The on board unit is when receiving Transaction Information not by the road of adjacent lane
The interference for the adjacent Transaction Information that side unit is sent, and then promote the reliability of ETC lane system transaction.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of method for sending information for ETC charging system, which is characterized in that the described method includes:
Synchronization module receives synchronization signal, wherein the synchronization signal, includes at least time tag, and by marking to the time
The parsing of label issues time signal to main control chip；
The main control chip carries out clock alignment according to the time signal received, and is controlled according to pre-determined synchronization frequency and send mould
Block sends Transaction Information.
2. the method according to claim 1, wherein the time signal include but is not limited to time service pulse and/
Or standard time information.
3. the method according to claim 1, wherein the synchronization signal can be satellite-signal, correspondingly, institute
Stating synchronization module is GNSS module.
4. the method according to claim 1, wherein the method also includes:
Control module receives the Transaction Information sent by lane unit, and is sent to the main control chip；
Receiving module receives the response message sent by the on board unit；
The response message is sent to the control module by the main control chip；
The response message received is sent to the lane unit by the control module.
5. the method according to claim 1, wherein the method also includes,
The main control chip controls the sending module according to pre-determined synchronization frequency and sends interference information.
6. a kind of information transmitting apparatus for ETC charging system characterized by comprising
Synchronization module, for receiving synchronization signal, wherein the synchronization signal, includes at least time tag, and by described
The parsing of time tag issues time signal to main control chip；
The main control chip for carrying out clock alignment according to the time signal received, and is controlled according to pre-determined synchronization frequency
Sending module sends Transaction Information.
7. device according to claim 6, which is characterized in that the time signal includes but is not limited to time service pulse or mark
Quasi- temporal information.
8. device according to claim 6, which is characterized in that the synchronization signal can be satellite-signal, correspondingly, institute
Stating synchronization module is GNSS module.
9. device according to claim 6, which is characterized in that described device further include:
Control module for receiving the Transaction Information sent by lane unit, and is sent to the main control chip；
Receiving module, for receiving the response message sent by the on board unit；
Correspondingly, the main control chip is also used to the response message being sent to the control module；
The control module, the response message for being also used to receive are sent to the lane unit.
10. a kind of information transmitting system for ETC charging system, which is characterized in that the system comprises at least two as weighed
Benefit requires the 6-9 any information transmitting apparatus and synchronizer, wherein the synchronizer is for sending synchronization signal
It to the information transmitting apparatus, is synchronized so that all information transmitting apparatus carry out clock simultaneously, and then according to pre-determined synchronization frequency
It is synchronous to send information.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111951417A (en) * | 2020-07-23 | 2020-11-17 | 深圳成谷智能科技有限公司 | Method and device for synchronously sending multi-channel side unit signals |
| CN112017313A (en) * | 2020-09-09 | 2020-12-01 | 深圳成谷智能科技有限公司 | Charging method, device and equipment of ETC portal system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508576U (en) * | 2009-08-25 | 2010-06-16 | 深圳市金溢科技有限公司 | Road-side unit synchronizer used for electronic charging system without parking |
| CN104765043A (en) * | 2015-03-17 | 2015-07-08 | 广东工业大学 | High-integration satellite navigation continuously-operating reference station |
| CN205193889U (en) * | 2015-08-11 | 2016-04-27 | 深圳市金溢科技股份有限公司 | Trackside unit and electronics charging system that does not stop |
| CN207020730U (en) * | 2017-07-05 | 2018-02-16 | 北京万集科技股份有限公司 | A kind of information transmitting apparatus and system for ETC toll collection systems |
-
2017
- 2017-07-05 CN CN201710542728.0A patent/CN109215146A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508576U (en) * | 2009-08-25 | 2010-06-16 | 深圳市金溢科技有限公司 | Road-side unit synchronizer used for electronic charging system without parking |
| CN104765043A (en) * | 2015-03-17 | 2015-07-08 | 广东工业大学 | High-integration satellite navigation continuously-operating reference station |
| CN205193889U (en) * | 2015-08-11 | 2016-04-27 | 深圳市金溢科技股份有限公司 | Trackside unit and electronics charging system that does not stop |
| CN207020730U (en) * | 2017-07-05 | 2018-02-16 | 北京万集科技股份有限公司 | A kind of information transmitting apparatus and system for ETC toll collection systems |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111951417A (en) * | 2020-07-23 | 2020-11-17 | 深圳成谷智能科技有限公司 | Method and device for synchronously sending multi-channel side unit signals |
| CN112017313A (en) * | 2020-09-09 | 2020-12-01 | 深圳成谷智能科技有限公司 | Charging method, device and equipment of ETC portal system |
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