CN102998557B - The method of testing of vehicle carried electronic label and proving installation in a kind of ETC system - Google Patents

The method of testing of vehicle carried electronic label and proving installation in a kind of ETC system Download PDF

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Publication number
CN102998557B
CN102998557B CN201210454605.9A CN201210454605A CN102998557B CN 102998557 B CN102998557 B CN 102998557B CN 201210454605 A CN201210454605 A CN 201210454605A CN 102998557 B CN102998557 B CN 102998557B
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test
electronic tag
card
electronic
dsrc
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CN102998557A (en
Inventor
薛金银
张北海
李全发
王梅
张为民
高文宝
张晶晶
尤鑫
赵阳
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Beijing Sutong Technology Co., Ltd.
BEIJING YILUXING TECHNOLOGY CO., LTD.
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BEIJING SUTONG TECHNOLOGY Co Ltd
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Abstract

Electric non-stop toll belonging to the present invention (ETC) technical field, particularly relates to vehicle carried electronic label, test macro and method of testing in a kind of ETC system.Wherein method comprises, and first, electronic tag receives the test instruction of far-end specialized equipment, or after the detecting information reading inserted special test IC-card, enters test pattern; Then, electronic tag, according to the test instruction information of far-end specialized equipment or special test IC-card, exports the test signal preset, to carry out radio frequency signal quality test and/or the test of DSRC data transmit-receive.This method can test the less radio-frequency parameter of electronic tag and arrange, and is convenient to the properties of product of detected electrons label, and can for different environments for use, and such as the signal degrade condition of different glass for vehicle window sets most suitable messaging parameter.

Description

The method of testing of vehicle carried electronic label and proving installation in a kind of ETC system
Technical field
Electric non-stop toll belonging to the present invention (ElectronicTollCollection is called for short ETC) technical field, particularly relates to vehicle carried electronic label, test macro and method of testing in a kind of ETC system.
Background technology
At present, a lot of provinces and cities of China have all built highway electric non-stop toll system.ETC system is by ETC track trackside antenna and vehicle carried electronic label (OnBoardUnit, OBU) by the mode of radio communication realize charging transaction, communication protocol adopts Dedicated Short Range Communications, (DedicatedShortRangeCommunication is called for short DSRC) agreement.Wherein electronic tag supports IC-card read-write capability, and IC-card, as the medium of cashless payment, inserts in electronic tag.Electronic tag, as IC card reading and writing machine tool, can carry out read-write operation to contact and/or non-contact IC card.Wherein, Contact Type Ic Card follows ISO/IEC7816 agreement with communicating of electronic tag, and non-contact IC card follows ISO/IEC14443 agreement.
When electronic tag is installed on vehicle, insert IC-card, the display screen of electronic tag can show some information of IC-card, such as, for pre-payment type Stored Value IC-card, can show its remaining sum.When ETC charge station passed by by vehicle, electronic tag carries out wireless DS RC with ETC track trackside antenna and communicates, and completes ETC transaction, in transaction results write IC-card.
Electronic tag is as in-vehicle wireless communications device, when carrying out product development and network access testing, need to check product parameters whether to meet the requirement of standards and norms, therefore need test electronic tag being carried out to Physical layer radio communication parameter, these parameters comprise: transfer rate, dutycycle, frequency tolerance, transmitted bandwidth, spuious, emissive power, receiving sensitivity etc.Simultaneously, because the glass for vehicle window of different vehicle is different to the attenuation degree of radiowave, for the vehicle that some is stronger to radio signal shielding, need the parameter such as emissive power, receiving sensitivity regulating the electronic tag installed, ensureing electronic tag radio frequency parameter consistance and communication reliability when carrying out ETC transaction, needing during adjustment to need to carry out corresponding test and detection to the radiofrequency signal of electronic tag.
In the prior art, there is no unified method to the test of the radio communication parameter of vehicle carried electronic label, the electronic tag of different vendor launches the triggering mode disunity of specific test data method, is much undertaken by privately owned specific program.Meanwhile, the method for the electronic tag adjustment radio frequency parameter of different vendor is not identical yet, and have plenty of and adjusted by hardware button, what have is adjusted by software, and adjustment numerical range is also different, and the reliability of DSRC radio communication cannot ensure.The test of electronic tag and the difference of radio frequency parameter method of adjustment, when causing testing the electronic tag of different model, need to reconfigure and connecting test equipment, testing efficiency is lower, the cost of test and debugging is higher, can not adapt to popularization and the large-scale application of ETC system.
Summary of the invention
The present invention proposes vehicle carried electronic label, test macro and method of testing in a kind of ETC system, for solving the problem that in prior art, electronic tag test is inconvenient, cost is high.
The invention provides vehicle carried electronic label method of testing in a kind of ETC system, comprise,
When electronic tag is in park mode, receive wake-up signal;
After electronic tag wakes up, receive and resolve command information:
If described command information is test instruction, then enter test pattern, according to test instruction information, export the test signal preset, to carry out radio frequency signal quality test and/or the test of DSRC data transmit-receive.
A further aspect of method according to the embodiment of the present invention, the DSRC microwave signal that described wake-up signal includes remote equipment transmission is waken up or is waken up by the IC-card inserted.
Another further aspect of method according to the embodiment of the present invention, when electronic tag is waken up by DSRC microwave signal, receive and resolve command information and comprise, judge to enter mode of operation or test pattern according to the specified byte in beacon service table BST, and according to the numerical value of this specified byte, carry out dissimilar test.
Another further aspect of method according to the embodiment of the present invention, when electronic tag insertion IC-card wakes up, receive and resolve command information and comprise, judge to enter mode of operation or test pattern according to the specified byte in inserted IC-card, and according to the numerical value of this specified byte, carry out dissimilar test.
Another further aspect of method according to the embodiment of the present invention, described electronic tag is according to test instruction, and the default test signal of output comprises, launch specific test data, the full 0 sequence of different channels, complete 1 sequence, random number sequence or without modulated carrier signal.
Another further aspect of method according to the embodiment of the present invention, described electronic tag is according to test instruction, arrange one or more radio communication parameter of electronic tag, described radio frequency parameter comprises, and emissive power, wakes sensitivity, receiving sensitivity and reception cut-off level up.
The embodiment of the present invention additionally provides vehicle carried electronic label in a kind of ETC system, comprises,
IC-card interface, DSRC interface, unit of testing and controlling, test cell;
Described IC-card interface is used for grafting IC-card;
Described DSRC interface is used for receiving and launching dedicated short-range communication data;
Described unit of testing and controlling, for resolving the command information after electronic tag is waken up, the mode of operation of electronic tag is judged according to described command information, if described command information is test instruction, then described test cell calls described DSRC interface and exports the test signal preset, to carry out radio frequency signal quality test and/or the test of DSRC data transmit-receive.
A further aspect of vehicle carried electronic label in ETC system according to the embodiment of the present invention, when electronic tag is waken up by DSRC microwave signal, described unit of testing and controlling judges to enter mode of operation or test pattern according to the specified byte in beacon service table BST, described test cell, according to the numerical value of this specified byte, carries out dissimilar test.
Another further aspect of vehicle carried electronic label in ETC system according to the embodiment of the present invention, when electronic tag insertion IC-card wakes up, described unit of testing and controlling judges to enter mode of operation or test pattern according to the specified byte in inserted IC-card, described test cell, according to the numerical value of this specified byte, carries out dissimilar test.
The embodiment of the present invention additionally provides a kind of test macro of vehicle carried electronic label, comprises above-mentioned vehicle carried electronic label, remote equipment, testing apparatus;
Wherein, described vehicle carried electronic label receives the command information that remote equipment sends, monitored the communication of described vehicle carried electronic label by testing apparatus, described testing apparatus regulates described remote equipment again to send command information to described vehicle carried electronic label according to test result and tests.
Vehicle carried electronic label possesses IC-card read-write and DSRC communication function, therefore adopt special test IC-card and special test instruction to wake electronic tag up and enter test pattern, and carry out test and the debugging of item radio frequency parameter, only need to increase in the processing logic of the microprocessor of electronic tag to support that the function of test pattern can realize, belong to software upgrading, do not need the hardware device carrying out other to change, cost is lower.
Present invention achieves the unification of the electronic label detecting method of different model, to carry out the product test work of standardization, robotization.Also provide unified radio frequency parameter method of adjustment simultaneously, can for different environments for use, the such as signal attenuation of different glass for vehicle window sets most suitable messaging parameter, practical.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part, does not form limitation of the invention.In the accompanying drawings:
The process flow diagram of vehicle carried electronic label method of testing in a kind of ETC system that Fig. 1 provides for the embodiment of the present invention;
Figure 2 shows that the test macro function unit figure of vehicle carried electronic label in a kind of ETC system of the embodiment of the present invention;
Figure 3 shows that the method for testing process flow diagram that in embodiment of the present invention ETC system, vehicle carried electronic label wakes up based on IC-card;
Figure 4 shows that the file structure of IC-card in the embodiment of the present invention;
Figure 5 shows that the method for testing process flow diagram that in embodiment of the present invention ETC system, vehicle carried electronic label wakes up based on DSRC microwave signal;
Figure 6 shows that the illustrative view of functional configuration of embodiment of the present invention ETC vehicle carried electronic label.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the embodiment of the present invention is described in further details.At this, schematic description and description of the present invention is for explaining the present invention, but not as a limitation of the invention.
Electronic tag is installed to after on vehicle, is in dormant state, and only wake-up circuit is in work, and its operating power consumption is very low, is only waken up after receiving wake-up signal, and carries out the operation of phase.Typical wake-up mode is that DSRC wireless communication signals wakes up and wakes two kinds up with IC-card plug-in card.When the vehicle being provided with electronic tag sails ETC area of charge into, receive the beacon service table (BeaconServiceTable with wake-up signal (square wave of 14KHz) of the trackside antenna transmission in ETC track, BST) during signal, be waken up, enter duty, according to the indication information of BST, return corresponding VST(VehicleServiceTable, vehicle service table) signal.After antenna receives VST signal, be first encrypted certification with vehicle carried electronic label, the object of certification distinguishes whether vehicle has installed the vehicle carried electronic label of lawful registration, and ETC charge transaction is carried out in certification after passing through.After ETC transaction communications terminates, antenna transmission END instruction, electronic tag enters dormant state after returning response.Electronic tag also can be waken up by the BST signal of the transmitting of special issuing equipment or hand-held checkout equipment.
When IC-card inserts electronic tag, the microprocessor of electronic tag is waken up by IC plug-in card, carries out other operations such as IC-card legitimate verification, information reading, remaining sum display.
The present invention utilizes the above-mentioned feature of electronic tag, propose and utilize special test IC-card and special test BST instruction to make electronic tag enter test pattern, launch fc-specific test FC data or set the method for some radio frequency parameter, ensureing that the performance of electronic tag and parameter meet ETC communicating requirement.
As the process flow diagram of vehicle carried electronic label method of testing in a kind of ETC system that Fig. 1 provides for the embodiment of the present invention.
Step 101, when electronic tag is in park mode, receives wake-up signal.
Step 102, after electronic tag wakes up, receives and command information after resolving wake-up signal.
Step 103, decision instruction information, if for trading instruction, then enters step 104, otherwise enters step 105 and judge.
Step 104, vehicle carried electronic label enters normal mode of operation, carries out ETC transaction.
Step 105, judges that this command information is test instruction, then enters step 107, otherwise enter step 106.
Step 106, electronic tag does not respond, and enters dormancy.
Step 107, electronic tag enters test pattern, according to the numerical value of test instruction, exports specific test data or sets its radio communication parameter.
Above-mentioned steps 103-step 106 can order in no particular order, and whether above-mentioned steps 103-step 106 can be directly test instruction replacement with decision instruction information.
Wherein said electronic tag exports fc-specific test FC data and comprises: launch continuously or the full 0 sequence of one section of different channels, complete 1 sequence, random number sequence, without modulated carrier signal etc.;
The radio communication parameter that wherein said electronic tag can set comprises: emissive power, wake sensitivity, receiving sensitivity and reception cut-off level up.
Be illustrated in figure 2 the Main functional units schematic diagram of electronic tag in a kind of ETC system of the embodiment of the present invention.
Comprise IC-card interface 201, DSRC interface 202, unit of testing and controlling 203, test cell 204, also comprise IC-card 205, DSRC remote equipment 206.
Described IC-card interface 201 is connected with described IC-card 205, in ETC system, electronic tag carries out from IC-card 205, reading data in daily ETC charging process and write data in described IC-card 205, described DSRC interface 202 is for receiving and launching dedicated short-range communication data, form primarily of the radio frequency unit containing microwave antenna, the electronic tag of described ETC system is connected by wireless radio frequency mode with DSRC remote equipment 206 by DSRC interface 202.DSRC remote equipment comprises: ETC track trackside antenna, electronic tag issuing equipment and DSRC special inspecting equipment etc.
Described unit of testing and controlling 203 is for resolving the command information after electronic tag is waken up, the mode of operation of electronic tag is judged according to described command information, if described command information is test instruction, then described test cell 204 calls described DSRC interface 202 and exports the test signal preset, to carry out radio frequency signal quality test and/or the test of DSRC data transmit-receive.
Described unit of testing and controlling 203 decision instruction information if electronic transaction instruction, then carries out normal ETC electronic transaction.Electronic transaction instruction then neither not respond if not test instruction, control described electronic tag and continue to enter dormant state.
Wherein, described IC-card interface 201 can be IC-card read-write cell.
According to the above embodiments, the test data that described electronic tag sends comprises: launch continuously or the full 0 sequence of one section of different channels, complete 1 sequence, random number sequence, without modulated carrier signal; Electronic tag sets that specific radio communication parameter comprises emissive power, wakes sensitivity up, receiving sensitivity and reception cut-off level etc.The DSRC test signal that testing apparatus detected electrons label exports, judges whether its waveform and radio frequency parameter meet the requirements.
In electronic tag test and debug process, DSRC remote equipment and special test IC-card all can wake electronic tag up; When carrying out ETC transaction, only having DSRC trading instruction just can wake electronic tag up and carrying out ETC transaction.
Pass through above-described embodiment, the IC-card read-write that electronic tag can be utilized to carry and DSRC communication function, electronic tag is tested, hardware modifications need not be carried out, special test IC-card cost is lower, and highly versatile, effectively can reduce the testing cost of electronic tag, and the radio frequency parameter of electronic tag can also be set.
Provide concrete two embodiments being waken and waken up by DSRC remote equipment up electronic tag by special IC-card below respectively, the treatment scheme of electronic tag radio frequency parameter of the present invention test and communication parameter setting is described.
Embodiment 1:
In the present embodiment, carry out the test of electronic tag and the setting of communication radio frequency parameter by special test IC-card.
Be illustrated in figure 3 the particular flow sheet of the method for testing of the electronic tag of the present embodiment.
Step 300, inserts test I C card in the IC-card slot of electronic tag, wakes electronic tag up;
Step 301, the command information in IC-card read-write cell read test IC-card;
Step 302, unit of testing and controlling obtains the type of command information;
Step 303, unit of testing and controlling, according to the type of command information, judges the mode of operation of electronic tag: if as trading instruction (command byte numerical value is 15H ~ 17H), then electronic tag performs step 304, enters normal mode of operation; Otherwise,
Step 305, whether decision instruction byte value is 70H ~ 87H, and if it is electronic tag performs step 306, enters test pattern, exports corresponding test data according to the numerical value of command byte;
Otherwise whether enter step 307 decision instruction byte value is 90H ~ 95H, if it is electronic tag performs step 308, enters radio frequency parameter and arranges pattern, arrange corresponding radio communication parameter according to the numerical value of command byte.
Step 309, if the non-above-mentioned numerical value of command byte that electronic tag receives, then electronic tag does not respond this command information, reenters dormant state.
In this example, the IC-card read-write cell of electronic tag can read and write Contact Type Ic Card, also can read and write non-contact IC card.
The detailed data and the step that provide the present embodiment are below decomposed.
In step 301 and 302, the command information of electronic tag read test IC-card, wherein test I C card is identical with the file structure of the IC-card of concluding the business for ETC, is only that the numerical value of its some particular data (i.e. command information byte) is different.
Wherein, the file structure of described IC-card can be as shown in Figure 4, in embodiments of the present invention, the mark of test I C card judges by reading " card distribution basic data file " the i.e. content of 0015 file in IC-card, wherein said 0015 file layout is as shown in table 1, " type of card " byte of 0015 file, i.e. the 9th byte, be the byte of identification card type information, electronic tag judges IC-card type of card according to the numerical value of this byte.In the present invention, this byte is as command byte, and the IC-card that difference is inserted is test I C card or ETC trade IC card.
Table 1:IC card 0015 file layout
Numerical value and the corresponding type of card of the command byte of IC-card are as follows:
If this byte value is " 15H ", " 16H " or " 17H " of 16 systems, be transaction card;
If this byte value is more than or equal to " 70H " of 16 systems and is less than " 88H ", be test I C card, electronic tag enters step 306, outputs test data continuously, until IC-card is extracted.The concrete corresponding relation of the test data that electronic tag exports and IC-card command byte is in table 2.
Table 2: under test pattern, command byte and electronic tag export the corresponding relation of data
Type of card byte value Channel Electronic tag exports
70H - Display electronic tag version number
80H 0 Launch random PN 9 sequence
81H 0 Launch complete " 0 " sequence
82H 0 Launch complete " 1 " sequence
83H 0 Launch without modulated carrier
84H 1 Launch random PN 9 sequence
85H 1 Launch complete " 0 " sequence
86H 1 Launch complete " 1 " sequence
87H 1 Launch without modulated carrier
In table 2, different type of card byte (command byte) numerical value can be realized by different test I C cards, often open a numerical value in the corresponding table 2 of type of card byte of test card, so only need 9 test I C cards can carry out the detection of particular radio-frequency parameter and waveform to electronic tag.Insert different IC-cards, control electronic tag and launch different data, such as, when type of card byte is 82H, electronic tag is in complete 1 sequence of 0 channels transmit of 5.79GHz; When type of card byte is 86H, electronic tag is in complete 1 sequence of 1 channels transmit of 5.80GHz; When type of card byte is 87H, electronic tag is in the unmodulated carrier signal of 1 channels transmit of 5.80GHz.Testing apparatus transmits as the detected electrons labels such as frequency spectrograph, checks it whether to meet the requirement of relevant criterion and specification.
If the numerical value of the command byte of IC-card is more than or equal to " 90H " of 16 systems and is less than or equal to " 95H ", be optimum configurations card, electronic tag enters radio communication parameter setting mode.Now electronic tag is according to the command byte numerical value in IC-card, adjusts corresponding radio communication parameter, dormancy after adjustment.The corresponding electronic tag communication parameter configuration of the numerical value of IC-card command byte and setting range as shown in table 3.
The radiofrequency signal optimum configurations that table 3:IC card command byte numerical value is corresponding
Corresponding with table 3,6 special test setting IC-cards can be made, often open a numerical value in the command byte write table 3 of card.Insert different IC-cards, the corresponding radio communication parameter of electronic tag can be set.Such as, in this example when special test IC-card command byte is 90H, the radiofrequency signal parameter of electronic tag: emissive power, wake sensitivity up, receiving sensitivity and reception cut-off level recover default setting, be 0dBm as arranged emissive power default value, waking sensitivity default value up is 44dBm, and receiving sensitivity default value is-53dBm; When type of card byte is 91H, the emissive power of electronic tag is heightened 3dB by the basis of default value, other parameter constants; When type of card byte is 94H, the emissive power of electronic tag is constant, and wake sensitivity, receiving sensitivity and reception cut-off level up and turn down 5dB, namely sensitivity strengthens one grade.
In table 3, except default value, the emissive power of electronic tag have 3 grades adjustable, step-length is 3dB; Emissive power have 2 grades adjustable, step-length is 5dB.Also as required, other adjustable extent can be set and regulate step-length numerical value.But in the ETC system for an operational area, its adjustable parameter numerical value at the electronic tag of network operation and scope should be unified.
In electronic tag installation process, if testing apparatus such as hand-held frequency spectrograph, hand-held audiomonitor find that electronic tag signal is undesirable, then can adjust its radio frequency parameter by inserting different IC-cards, to ensure the communication quality of electronic tag, with the problem avoiding vehicle communication zone when ETC track inconsistent.Such as, the glass decay of certain vehicle is comparatively serious, then inserting type of card byte value is the IC-card of 92H, heightens its emissive power 6dB, ensures that ETC track antenna is to the reliable reception of electronic tag signal, ensures communication link quality.This mode in systems in practice Installation and Debugging electronic tag more for convenience, installation personnel only need can carry out radio frequency parameter adjustment with 6 IC-cards, need not carry out hardware modifications, save time and cost of labor.
Embodiment 2:
In the present embodiment, carry out the test of electronic tag and the setting of communication radio frequency parameter by DSRC remote equipment.
To be realized by DSRC communication mode because electronic tag and ETC track trackside antenna are concluded the business, the mode of special test BST therefore also can be adopted to make electronic tag enter test pattern, carry out corresponding test.
DSRC communication always launches the beacon service table (BeaconServiceTable with wake-up signal (square wave of 14KHz) with remote equipment (specialized equipment or ETC track trackside antenna), BST) signal starts, after electronic tag is waken up, according to the indication information in BST signal, return corresponding vehicle service table (VehicleServiceTable, VST) signal, concludes the business or test operation afterwards accordingly, after electronic tag reenter dormant state.
DSRC communication mode can not only realize the test item that aforementioned IC-card plug-in card mode is carried out, and can also have other content measurement.With reference to figure 5, concrete steps are described below:
Step 500, remote equipment is launched special test BST signal, wakes electronic tag up;
Step 501, the command information in special test BST is passed to unit of testing and controlling by the communication unit in DSRC interface;
Step 502, unit of testing and controlling, according to the type of command information, judges the mode of operation of electronic tag.
Step 503, if for transaction or other DSRC(are as distribution) instruction (command byte numerical value is 40/41H), then electronic tag performs step 504, enters normal mode of operation; Otherwise,
Step 505, if command byte numerical value is 70H ~ 87H, then electronic tag performs step 506, enters test pattern, exports corresponding test data according to the numerical value of command byte; Otherwise enter step 507,
Step 507, if command byte numerical value is 90H ~ 95H, then electronic tag performs step 508, enters radio frequency parameter and arranges pattern, arrange corresponding radio communication parameter according to the numerical value of command byte.
Step 509, if the command byte that electronic tag receives is the default test instruction beyond above-mentioned numerical value, then enters step 510, carries out the response preset; Otherwise,
Step 511, if the non-above-mentioned numerical value of command byte that electronic tag receives, then electronic tag does not respond this command information, reenters dormant state.
The detailed data and the step that provide the present embodiment are below decomposed.
In step 501 and 502, the instruction judging unit of electronic tag judges the mode of operation of electronic tag according to the command information in BST.The special BST data that remote equipment is launched and implication format sample thereof are as following table:
In upper table, the first behavior sample data, the implication of the second behavioral data is explained.Wherein, BeaconID is beacon ID information, i.e. the MAC Address of remote equipment (ETC track trackside antenna or specialized equipment); UnixTime is 16 binary data of cumulative time from 1 day January in 1970, and unit is second; Profile is channel configuration information, and 00 represents category-A configuration, channel 0; Application model 01 represents that ETC applies; Transmission mode is key message of the present invention, i.e. command byte, represents and carry out data transmission test to electronic tag when numerical value equals 20H.
In step 502, if the numerical value of BST transmission mode byte (i.e. command byte) is 40H, then represent that this BST is issuing mode, carry out initialization distribution operation to electronic tag, special BST data instance is: FFFFFFFF500391C0030000034F97979C0001400000; If the numerical value of command byte is 41H, then represent that this BST is trade mode, electronic tag and remote equipment carry out ETC transaction, and special BST data instance is: FFFFFFFF500391C0020003E34F951ED80001412F00.
If BST command byte numerical value is more than or equal to " 70H " of 16 systems and is less than " 88H ", be special test instruction, electronic tag enters step 306, outputs test data continuously, enters dormant state after 3 seconds.The test data that electronic tag exports is identical with embodiment 1, as shown in table 2 with the corresponding relation of BST command byte.Such as, when special BST data are: during FFFFFFFF500391C0020003E34F951ED800017000, electronic tag receives version of display number after this BST, dormancy after 3 seconds; When special BST data are: during FFFFFFFF500391C0020003E34F951ED800018000, electronic tag launches random number sequence after receiving this BST, continue dormancy after 3 seconds.
If the numerical value of BST command byte is more than or equal to " 90H " of 16 systems and is less than or equal to " 95H ", be optimum configurations special instruction, electronic tag enters radio communication parameter setting mode, according to command byte numerical value, adjust corresponding radio communication parameter, dormancy after adjustment.The corresponding electronic tag communication parameter configuration of numerical value of BST command byte is identical with embodiment 1 with setting range, is shown in Table 3.Such as, when special BST data are: during FFFFFFFF500391C0020003E34F951ED800019000, the radiofrequency signal parameter of electronic tag: emissive power, wake sensitivity up, receiving sensitivity and reception cut-off level recover default setting, be 0dBm as arranged emissive power default value, waking sensitivity default value up is-44dBm, and receiving sensitivity default value is-53dBm; When special BST data are: during FFFFFFFF500391C0020003E34F951ED800019100, the emissive power of electronic tag is heightened 3dB by the basis of default value, other parameter constants.
Can also carry out other tests preset to electronic tag by remote equipment, such as, an example of step 509 is: remote equipment wakes test up to electronic tag.Concrete data are as follows:
(1) the special BST data that remote equipment is launched are: FFFFFFFF500391C001FFFFFF4B22735500011D00, and in this BST, the numerical value of command byte is 29(1DH), represent and test is waken up to electronic tag.
(2) electronic tag receive wake test special instruction up after enter and wake test mode up, only return system information and configuration information, and enter dormant state after carrying out buzzing (continuous 2 sound) prompting.The VST data instance returned: 02,000,000,C00,391,D00,001,C10,100,27B,1B1,BEA,911,010,001,001,211,010,909 30018910201001182018011802000000100200, concrete meaning is as following table:
Another example of step 509 is: electronic tag receptivity is tested, and flow process is as follows:
(1) the special BST data that remote equipment is launched are: FFFFFFFF500391C001FFFFFF4B22735500011E00, and in this BST, the numerical value of command byte is 30(1EH), represent and reception test is carried out to electronic tag.
(2) electronic tag enters and wakes test mode up after receiving reception test special instruction, only return system information and configuration information, the VST data instance returned: 02,000,000,C00,391,D00,001,C10,100,27B,1B1,BEA,911,010,001,001,211,010,909 30018910201001182018011802000000100200
(3) remote equipment launches Action_Request Frame, and wherein Action_Type numerical value is 81(51H), represent the transmit data frames of carrying out data receiver test, be thereafter test data length byte and concrete data, example is as follows,
02000000407791050051LENABCDEF…AB
Wherein, LEN is data length instruction, and unit is byte, and LEN can get 0; ABCD after LEN ... for test data, it can be random number.
(4) electronic tag returns Action_Response Frame, and represent reception result, data instance is as follows,
0200E4E0E0F7009118AAXXXXXXXXYYYYYYYY00
Wherein, the numerical value of AA is defined as: 00-correctly receives; FF-receives CRC check mistake; Other mistakes of EE; XXXXXXXX represents the Frame number correctly received of receive counter record; YYYYYYYY represents the frame number of CRC check mistake in the paid-in Frame of receive counter record.The receive counter of electronic tag before dormancy or receive enter test pattern instruction after reset.
(5) remote equipment as required, repeats step (3)-(4), until terminate test.
(6) remote equipment launches END instruction Event_report, and data instance is as follows:
0200E4E0400391600000
(7) electronic tag enters dormant state after receive counter being reset.
Further as above-described embodiment, automatic test and parameter adjustment system can be formed by remote equipment and testing apparatus, first remote equipment launches the test instruction of default parameters, then according to the testing result of testing apparatus, adjusts the radio communication parameter of electronic tag.Launch adjustment instruction by remote equipment, after electronic tag response, whether testing apparatus detects the communication parameter ranges after adjustment more suitable.After overregulating, the presently used rf communication signal of electronic tag is set to most suitable parameter, and this parameter of employing is carried out ETC transaction by this electronic tag, thus realizes the object that this electronic tag is optimized for specific environment for use.
According to the above embodiments 1; also similar mode can be adopted to regulate according to testing result the test I C card inserted; such as, remote equipment in this example can be a device automatically inserting and extract IC-card; according to the control of testing apparatus, corresponding test I C card is inserted in the slot of the IC-card of described vehicle carried electronic label; thus the radio communication parameter of electronic tag is adjusted; the concrete physical construction of this remote equipment can be carried out design as required and be realized; this partial content within the protection domain of the present patent application, does not here repeat no more.
Above-mentioned two embodiments, when to exist simultaneously insert IC-card and special BST signal two kinds of modes wake up time, electronic tag preferential answering inserts the information of IC-card.Concrete scene is as follows:
Scene 1: electronic tag is waken up by special test IC-card, carries out corresponding test, terminates rear dormancy;
Scene 2: electronic tag is waken up by special BST, carries out corresponding test, terminates rear dormancy;
Scene 3: electronic tag is waken up by special BST and IC-card simultaneously, then preferential answering inserts the information of test I C card, carries out corresponding test, terminates rear dormancy.
This mechanism can be realized by the control program of the instruction judging unit of electronic tag.
According to above-described embodiment, Fig. 6 shows the complete function structural representation of embodiment of the present invention vehicle carried electronic label.
Comprise radio frequency unit 601, baseband processing unit 602, IC-card read-write cell 603, man-machine interface (as display screen, hummer etc.) 604, tamper unit 605, security control unit (ESAM) 606, wired data interface 607, power supply 608.
Wherein said baseband processing unit 602 can be made up of microprocessor (MCU) and storer, wherein comprises unit of testing and controlling 6021, ETC transaction unit 6022 further, test cell 6023.
Wherein, radio frequency unit 601 is for the reception of DSRC wake-up signal, the reception of DSRC data and transmitting.
Described baseband processing unit 602 is for the process of base band data, exchanges data, the control of electronic tag test pattern and trade mode and the process of steering logic with radio frequency unit and peripherals.
Described power supply 608 is for providing energy support to electronic tag.
Described wired data interface 607, when described vehicle carried electronic label needs wireline interface when carrying out wired connection with peripherals.
Described IC-card read-write cell 603 carries out read-write operation when inserting IC-card for vehicle carried electronic label, and the IC-card of insertion can be that contact also can for contactless.
Described security control unit 606, the safety protection function that the data for realizing electronic tag store, read and write.
Described tamper unit 605, for detecting, preserving the device of electronic tag disassembly status.
Described man-machine interface 604, as display screen and hummer etc., is the primary interface with user interactions.
Described unit of testing and controlling 6021, ETC transaction unit 6022 and test cell 6023 by the software simulating in MCU, also can pass through other realization such as hardware circuit or process chip.
By the embodiment of the present invention, special test IC-card can be used, or special BST tests to the vehicle carried electronic label in ETC system and radio frequency parameter is arranged, arrange convenient and save time and cost of labor.Wherein, time the test mode of special IC-card is applicable to carry out analyzing for some or certain parameter, carry out long data sampling test, or outdoor manual testing; Under adopting the method for testing of special BST to be applicable to indoor microwave dark room environment, carry out robotization integration testing.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. the method for testing of vehicle carried electronic label in ETC system, is characterized in that comprising:
When electronic tag is in park mode, receive wake-up signal;
After electronic tag is waken up, receives and resolve command information, judging the mode of operation of electronic tag according to described command information,
If described command information is trading instruction, then enter normal mode of operation,
If described command information is test instruction, then enter test pattern, according to test instruction information, export the test signal preset, to carry out radio frequency signal quality test and/or the test of DSRC data transmit-receive.
2. method according to claim 1, is characterized in that, described wake-up signal is the DSRC microwave signal that sent by remote equipment or is produced by insertion IC-card.
3. method according to claim 2, it is characterized in that, when electronic tag is waken up by DSRC microwave signal, receive and resolve command information and comprise, judge to enter normal mode of operation or test pattern, if normal mode of operation according to the specified byte in beacon service table, then electronic tag carries out normal electronic charging transaction, if test pattern, electronic tag, according to the numerical value of this specified byte, carries out dissimilar test.
4. method according to claim 2, it is characterized in that, when electronic tag insertion IC-card wakes up, receive and resolve command information and comprise, judge to enter normal mode of operation or test pattern, if normal mode of operation according to the specified byte in inserted IC-card, then electronic tag carries out normal electronic charging transaction, if test pattern, electronic tag, according to the numerical value of this specified byte, carries out dissimilar test.
5. the proving installation of vehicle carried electronic label in ETC system, described proving installation is arranged at and comprises IC-card interface, and in the electronic tag of DSRC interface, described IC-card interface is used for grafting IC-card, and described DSRC interface is used for receiving and launching DSRC data; It is characterized in that, described proving installation comprises:
Unit of testing and controlling, for resolving the command information after electronic tag is waken up, judges the mode of operation of electronic tag according to described command information, if described command information is trading instruction, then enter normal mode of operation, if described command information is test instruction, then enter test pattern;
Test cell, exports for calling described DSRC interface the test signal preset, to carry out radio frequency signal quality test and/or the test of DSRC data transmit-receive.
6. proving installation according to claim 5, it is characterized in that, when electronic tag is waken up by DSRC microwave signal, described unit of testing and controlling judges to enter normal mode of operation or test pattern according to the specified byte in beacon service table, if normal mode of operation, then electronic tag carries out normal electronic charging transaction, if test pattern, described electronic tag test cell, according to the numerical value of this specified byte, carries out dissimilar test.
7. proving installation according to claim 5, it is characterized in that, when electronic tag insertion IC-card wakes up, described unit of testing and controlling judges to enter normal mode of operation or test pattern according to the specified byte in inserted IC-card, if normal mode of operation, then electronic tag carries out normal electronic charging transaction, if test pattern, described electronic tag test cell, according to the numerical value of this specified byte, carries out dissimilar test.
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