CN102998557A - Onboard unit in ETC (electronic toll collection) system, and system and method for testing onboard unit - Google Patents
Onboard unit in ETC (electronic toll collection) system, and system and method for testing onboard unit Download PDFInfo
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Abstract
The invention belongs to the technical field of electronic toll collection (ETC), and particularly relates to an onboard unit in an ETC system, and a system and a method for testing the onboard unit. The method includes that firstly, the onboard unit enters a test mode after receiving a test instruction of remote special equipment or reading test information of an inserted special test IC (integrated circuit) card; and secondly, the onboard unit outputs a preset test signal according to the test instruction of the remote special equipment or the test information of the special test IC card, so that a radiofrequency signal quality test and/or a DSRC (dedicated short range communication) data receiving and transmitting test can be carried out. The onboard unit, the system and the method have the advantages that radiofrequency parameters of the onboard unit can be tested and set, so that the product performance of the onboard unit can be detected, and appropriate communication parameters can be set according to different service environments such as different signal attenuation conditions of window glass.
Description
Technical field
Electric non-stop toll under the present invention (Electronic Toll Collection is called for short ETC) technical field relates in particular 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 the highway electric non-stop toll system.The ETC system is by ETC track trackside antenna and vehicle carried electronic label (On Board Unit, OBU) mode by radio communication realizes what charging was concluded the business, communication protocol adopts Dedicated Short Range Communications, (Dedicated Short Range Communication is called for short DSRC) agreement.Wherein electronic tag is supported the IC-card read-write capability, and IC-card inserts in the electronic tag as the medium of cashless payment.Electronic tag can carry out read-write operation to contact and/or non-contact IC card as the IC card reading and writing machine tool.Wherein, ISO/IEC 7816 agreements are followed in communicating by letter of Contact Type Ic Card and electronic tag, and non-contact IC card is followed ISO/IEC 14443 agreements.
When electronic tag is installed on the vehicle, insert IC-card, the display screen of electronic tag can show some information of IC-card, for example, for pre-payment type Stored Value IC-card, can show its remaining sum.When vehicle on road was crossed ETC charge station, electronic tag carries out wireless DS RC with ETC track trackside antenna communicated by letter, and finished the ETC transaction, and transaction results writes in the IC-card.
Electronic tag is as in-vehicle wireless communications device, when carrying out product development and network access testing, need the check product parameters whether to meet the requirement of standards and norms, therefore need to carry out to electronic tag the test of 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 some vehicle stronger to radio signal shielding, the parameters such as the emissive power of the electronic tag that the needs adjusting is installed, receiving sensitivity, guarantee electronic tag radio frequency parameter consistance and communication reliability when carrying out the ETC transaction, need to need to carry out corresponding test and detection to the radiofrequency signal of electronic tag during adjustment.
In the prior art, the test of the radio communication parameter of vehicle carried electronic label be there is no unified method, the electronic tag of different vendor is launched the triggering mode disunity of specific test data method, much is to be undertaken by privately owned specific program.Simultaneously, the method that the electronic tag of different vendor is adjusted radio frequency parameter is not identical yet, has plenty of by the hardware button adjustment, and what have passes through the software adjustment, and it is also different to adjust numerical range, and the reliability of DSRC radio communication can't guarantee.The difference of the test of electronic tag and radio frequency parameter method of adjustment, when causing the electronic tag of different model tested, 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, be used for solving prior art electronic tag test inconvenience, problem that 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, the test signal that output is default is in order to carry out radio frequency signal quality test and/or the test of DSRC data transmit-receive.
According to a further aspect of the described method of the embodiment of the invention, described wake-up signal includes the DSRC microwave signal of remote equipment transmission and wakes up or waken up by the IC-card that inserts.
Another further aspect according to the described method of the embodiment of the invention, when electronic tag is waken up by the DSRC microwave signal, receiving and resolve command information comprises, judgement enters mode of operation or test pattern according to the specified byte among the beacon service table BST, and according to the numerical value of this specified byte, carry out dissimilar tests.
Another further aspect according to the described method of the embodiment of the invention, when electronic tag insertion IC-card wakes up, receiving and resolve command information comprises, judgement enters mode of operation or test pattern according to the specified byte in the IC-card that inserts, and according to the numerical value of this specified byte, carry out dissimilar tests.
According to another further aspect of the described method of the embodiment of the 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 according to the described method of the embodiment of the invention, described electronic tag is according to test instruction, one or more radio communication parameter of electronic tag is set, and described radio frequency parameter comprises, emissive power, wakes sensitivity, receiving sensitivity and reception cut-off level up.
The embodiment of the invention also provides vehicle carried electronic label in a kind of ETC system, comprises,
The IC-card interface, DSRC interface, unit of testing and controlling, test cell;
Described IC-card interface is used for the grafting IC-card;
Described DSRC interface is used for receiving and emission dedicated short-range communication data;
Described unit of testing and controlling, be used for resolving electronic tag and be waken up command information afterwards, judge the mode of operation of electronic tag according to described command information, if described command information is test instruction, then described test cell calls the default test signal of described DSRC interface output, in order to carry out radio frequency signal quality test and/or the test of DSRC data transmit-receive.
A further aspect according to vehicle carried electronic label in the described ETC of the embodiment of the invention system, when electronic tag is waken up by the DSRC microwave signal, judgement enters mode of operation or test pattern to described unit of testing and controlling according to the specified byte among the beacon service table BST, described test cell carries out dissimilar tests according to the numerical value of this specified byte.
Another further aspect according to vehicle carried electronic label in the described ETC of the embodiment of the invention system, when electronic tag insertion IC-card wakes up, judgement enters mode of operation or test pattern to described unit of testing and controlling according to the specified byte in the IC-card that inserts, described test cell carries out dissimilar tests according to the numerical value of this specified byte.
The embodiment of the invention also 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, monitor the communication of described vehicle carried electronic label by testing apparatus, described testing apparatus is regulated described remote equipment according to test result and is again sent command information to described vehicle carried electronic label and test.
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 project radio frequency parameter, only need to increase in the processing logic of the microprocessor of electronic tag supports the function of test pattern to realize, belong to software upgrading, the hardware device that does not need to carry out other is changed, and cost is lower.
The present invention has realized the unification of the electronic label detecting method of different model, in order to carry out the product test work of standardization, robotization.Simultaneously also provide unified radio frequency parameter method of adjustment, can be for different environments for use, for example only messaging parameter is set in the signal attenuation of different glasss for vehicle window, and is practical.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, does not consist of 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 invention;
Figure 2 shows that the test macro function unit figure of vehicle carried electronic label in a kind of ETC of embodiment of the invention system;
Figure 3 shows that the method for testing process flow diagram that vehicle carried electronic label wakes up based on IC-card in the embodiment of the invention ETC system;
Figure 4 shows that the file structure of IC-card in the embodiment of the invention;
Figure 5 shows that the method for testing process flow diagram that vehicle carried electronic label wakes up based on the DSRC microwave signal in the embodiment of the invention ETC system;
Figure 6 shows that the illustrative view of functional configuration of embodiment of the invention ETC vehicle carried electronic label.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, below in conjunction with embodiment and accompanying drawing, the embodiment of the invention is described in further details.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.
Electronic tag is in dormant state after being installed on the vehicle, and only wake-up circuit is in work, and its work power consumption is very low, only is waken up after receiving wake-up signal, and carries out the operation of phase.Typical wake-up mode is that the DSRC wireless communication signals wakes up with the IC-card plug-in card and wakes two kinds up.When the vehicle that electronic tag is installed sails the ETC area of charge into, receive (the Beacon Service Table of the beacon service table 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(Vehicle Service Table, the vehicle service table) signal.Antenna receives and at first is encrypted authentication with vehicle carried electronic label after the VST signal, and the purpose of authentication is to distinguish whether vehicle has installed the vehicle carried electronic label of legal registration, authentication by after carry out ETC charge transaction.After the ETC transaction communications finishes, the 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 emission of special-purpose issuing equipment or hand-held checkout equipment.
When IC-card inserted electronic tag, the microprocessor of electronic tag was waken up by the IC plug-in card, carried out other operations such as IC-card legitimate verification, information read, remaining sum demonstration.
The present invention utilizes the above-mentioned feature of electronic tag, proposed to utilize special test IC-card and special test BST instruction to make electronic tag enter test pattern, emission fc-specific test FC data or set the method for some radio frequency parameter guarantee that performance and the parameter of electronic tag satisfies the ETC communicating requirement.
The process flow diagram of vehicle carried electronic label method of testing in a kind of ETC system that provides for the embodiment of the invention such as Fig. 1.
Above-mentioned steps 103-step 106 can be in no particular order order, and whether above-mentioned steps 103-step 106 can be directly replaces as test instruction take decision instruction information.
Wherein said electronic tag output fc-specific test FC data comprise: emission continuously or the full 0 sequence of one section different channels, complete 1 sequence, random number sequence is without modulated carrier signal etc.;
The radio communication parameter that wherein said electronic tag can be set comprises: emissive power, wake sensitivity, receiving sensitivity and reception cut-off level up.
Be illustrated in figure 2 as the major function cell schematics of electronic tag in a kind of ETC of embodiment of the invention system.
Comprise IC-card interface 201, DSRC interface 202, unit of testing and controlling 203, test cell 204 also comprises IC-card 205, DSRC remote equipment 206.
Described IC-card interface 201 is connected with described IC-card 205, electronic tag carries out in the daily ETC charging process from IC-card 205 reading out data and data writing in the described IC-card 205 in the ETC system, described DSRC interface 202 is used for receiving and emission dedicated short-range communication data, mainly be comprised of the radio frequency unit that contains microwave antenna, the electronic tag of described ETC system is connected by wireless radio frequency mode by DSRC interface 202 and DSRC remote equipment 206.The 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 used for resolving electronic tag and is waken up command information afterwards, judge the mode of operation of electronic tag according to described command information, if described command information is test instruction, then described test cell 204 calls the default test signal of described DSRC interface 202 outputs, in order 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 are if normal ETC electronic transaction is then carried out in the electronic transaction instruction.Neither the electronic transaction instruction then not respond if not test instruction, control described electronic tag and continue to enter dormant state.
Wherein, described IC-card interface 201 can be the 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 different channels, and complete 1 sequence, random number sequence is 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 of testing apparatus detected electrons label output 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 the ETC transaction, only have the DSRC trading instruction just can wake electronic tag up and carry out the ETC transaction.
Pass through above-described embodiment, IC-card read-write and the DSRC communication function that can utilize electronic tag to carry, electronic tag is tested, need not carry out hardware changes, special test IC-card cost is lower, and highly versatile can effectively reduce the testing cost of electronic tag, and can also set the radio frequency parameter of electronic tag.
The below provides respectively concrete passing through special-purpose IC-card wakes up and wakes two embodiment of electronic tag up by the DSRC remote equipment, and the treatment scheme of electronic tag radio frequency parameter test of the present invention 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 the special test IC-card.
Be illustrated in figure 3 as the particular flow sheet of method of testing of the electronic tag of present embodiment.
Step 300 is inserted test I C card in the IC-card slot of electronic tag, wakes electronic tag up;
Otherwise whether be 90H～95H, if it is the electronic tag execution in step 308 if entering step 307 decision instruction byte numerical value, enter radio frequency parameter pattern is set, and according to the numerical value of command byte corresponding radio communication parameter is set.
In this example, the IC-card read-write cell of electronic tag can be read and write Contact Type Ic Card, also can read and write non-contact IC card.
The below provides detailed data and the step of present embodiment and decomposes.
In the 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 that is used for the ETC transaction, only is that the numerical value of its some particular data (being the 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 sign of test I C card by read in the IC-card " card distribution basic data file " namely the content of 0015 file judge, 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 is judged the 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
The type of card of the numerical value of the command byte of IC-card and correspondence is as follows:
If this byte numerical value is " 15H ", " 16H " or " 17H " of 16 systems, be the transaction card;
If this byte numerical value more than or equal to " 70H " of 16 systems and less than " 88H ", is test I C card, electronic tag enters step 306, and the continuous wave output test data is until IC-card is extracted.The test data of electronic tag output and the concrete corresponding relation of IC-card command byte see Table 2.
Table 2: under the test pattern, the corresponding relation of command byte and electronic tag output data
| Type of card byte numerical value | Channel | Electronic tag output |
| 70H - | Show electronic tag version number | |
| 80H | 0 | Emission random PN 9 sequences |
| 81H | 0 | Complete " 0 " sequence of emission |
| 82H | 0 | Complete " 1 " sequence of emission |
| 83H | 0 | Emission is without modulated carrier |
| 84H | 1 | Emission random PN 9 sequences |
| 85H | 1 | Complete " 0 " sequence of emission |
| 86H | 1 | Complete " 1 " sequence of emission |
| 87H | 1 | Emission is without modulated carrier |
In the table 2, different type of card byte (command byte) numerical value can be realized by different test I C cards, a numerical value in the corresponding table 2 of the type of card byte of every test card so only needs 9 test I C cards can carry out to electronic tag the detection of particular radio-frequency parameter and waveform.Insert different IC-cards, the different data of control electronic tag emission, for example, when the type of card byte was 82H, electronic tag was in complete 1 sequence of 0 channels transmit of 5.79GHz; When the type of card byte was 86H, electronic tag was in complete 1 sequence of 1 channels transmit of 5.80GHz; When the type of card byte was 87H, electronic tag was in the unmodulated carrier signal of 1 channels transmit of 5.80GHz.Transmitting of the detected electrons such as testing apparatus such as frequency spectrograph label checks it whether to meet the requirement of relevant criterion and standard.
If the numerical value of the command byte of IC-card is parameter card is set more than or equal to " 90H " of 16 systems and less than or equal to " 95H ", electronic tag enters the radio communication parameter pattern is set.Electronic tag is adjusted corresponding radio communication parameter according to the command byte numerical value in the IC-card at this moment, adjusts complete rear dormancy.The corresponding electronic tag communication parameter configuration of the numerical value of IC-card command byte and setting range are as shown in table 3.
Radiofrequency signal parameter corresponding to table 3:IC card command byte numerical value arranges
Corresponding with table 3, can make the test setting IC-card of 6 special uses, the command byte of every card writes a numerical value in the table 3.Insert different IC-cards, can set the corresponding radio communication parameter of electronic tag.For example, in this example when special test IC-card command byte is 90H, the radiofrequency signal parameter of electronic tag: emissive power, wake sensitivity, receiving sensitivity up and the reception cut-off level recovers default setting, as the emissive power default value is set is 0dBm, waking the sensitivity default value up is 44dBm, and the receiving sensitivity default value is-53dBm; When the type of card byte was 91H, the emissive power of electronic tag was heightened 3dB by the basis at default value, other parameter constants; When the type of card byte was 94H, the emissive power of electronic tag was constant, woke sensitivity, receiving sensitivity and reception cut-off level up and turned down 5dB, and namely Sensitivity enhancement is 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 can as required, other adjustable extent be set and regulate step-length numerical value.But in the ETC system for an operational area, its adjustable parameter numerical value and scope at the electronic tag of network operation should be unified.
In the electronic tag installation process, if testing apparatus finds that such as hand-held frequency spectrograph, hand-held audiomonitor the electronic tag signal is undesirable, then can adjust its radio frequency parameter by inserting different IC-cards, guaranteeing the communication quality of electronic tag, to avoid vehicle inconsistent problem of communication zone when the ETC track.For example, the decay of the glass of certain vehicle is more serious, and then inserted with card type byte numerical value is the IC-card of 92H, heightens its emissive power 6dB, guarantees that ETC track antenna to the reliable reception of electronic tag signal, guarantees communication link quality.This mode Installation and Debugging electronic tag in real system is comparatively convenient, and installation personnel only needs can to carry out radio frequency parameter with 6 IC-cards and regulates, and need not carry out hardware and change, and saves 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 the DSRC remote equipment.
Because electronic tag and the transaction of ETC track trackside antenna realize by the DSRC communication mode, therefore also can adopt the mode of special test BST to make electronic tag enter test pattern, carry out corresponding test.
DSRC communication is always with beacon service table (the Beacon Service Table of remote equipment (specialized equipment or ETC track trackside antenna) emission with wake-up signal (square wave of 14KHz), BST) signal begins, after electronic tag is waken up, according to the indication information in the BST signal, return corresponding vehicle service table (Vehicle Service Table, VST) signal is concluded the business or test operation afterwards accordingly, and complete rear electronic tag reenters dormant state.
The DSRC communication mode not only can be realized the test item that aforementioned IC-card plug-in card mode is carried out, and other content measurement can also be arranged.With reference to figure 5, concrete steps are described below:
Step 509 if the command byte that electronic tag is received is the default test instruction beyond the above-mentioned numerical value, then enters step 510, the response of presetting; Otherwise,
The below provides detailed data and the step of present embodiment and decomposes.
In the step 501 and 502, the instruction judging unit of electronic tag is judged the mode of operation of electronic tag according to the command information among the BST.Special-purpose BST data and implication format sample such as the following table of remote equipment emission:
In the upper table, the first behavior sample data, the implication of the second behavioral data is explained.Wherein, BeaconID is the beacon id information, i.e. the MAC Address of remote equipment (ETC track trackside antenna or specialized equipment); UnixTime is the 16 system data of cumulative time from 1 day January in 1970, and unit is second; Profile is channel configuration information, 00 expression category-A configuration, channel 0; Application model 01 expression ETC uses; Transmission mode is key message of the present invention, and namely command byte represents when numerical value equals 20H electronic tag is carried out the data transmission test.
In the step 502, if the numerical value of BST transmission mode byte (being command byte) is 40H, represent that then this BST is issuing mode, electronic tag is carried out initialization distribution operation, special-purpose BST data instance is: FFFFFFFF 50 03 91 C003000003 4F97979C 00 01 40 00 00; If the numerical value of command byte is 41H, represent that then this BST is trade mode, electronic tag and remote equipment carry out the ETC transaction, and special-purpose BST data instance is: FFFFFFFF 50 03 91 C0 0,200,03E,34F,951,ED8 00 01 41 2F 00.
If BST command byte numerical value is the special test instruction more than or equal to " 70H " of 16 systems and less than " 88H ", electronic tag enters step 306, and the continuous wave output test data entered dormant state after 3 seconds.The test data of electronic tag output is identical with embodiment 1, as shown in table 2 with the corresponding relation of BST command byte.For example, when special-purpose BST data are: during FFFFFFFF50 03 91 C0 020003E3 4F,951,ED8 00 01 70 00, electronic tag is received behind this BST version of display number, dormancy after 3 seconds; When special-purpose BST data are: during FFFFFFFF 50 03 91 C0 020003E3 4F,951,ED8 00 01 80 00, electronic tag is launched random number sequence after receiving this BST, continues dormancy after 3 seconds.
If the numerical value of BST command byte is more than or equal to " 90H " of 16 systems and less than or equal to " 95H ", be parameter special instruction is set, electronic tag enters the radio communication parameter pattern is set, according to command byte numerical value, adjust corresponding radio communication parameter, adjust complete rear dormancy.The corresponding electronic tag communication parameter configuration of the numerical value of BST command byte is identical with embodiment 1 with setting range, is shown in Table 3.For example, when special-purpose BST data are: during FFFFFFFF 50 03 91 C0 020003E3 4,F95,1ED,800 01 90 00, the radiofrequency signal parameter of electronic tag: emissive power, wake sensitivity, receiving sensitivity up and the reception cut-off level recovers default setting, as the emissive power default value is set is 0dBm, waking the sensitivity default value up is-44dBm that the receiving sensitivity default value is-53dBm; When special-purpose BST data are: during FFFFFFFF 50 03 91 C0 020003E3 4F,951,ED8 00 0,191 00, the emissive power of electronic tag is heightened 3dB by the basis at default value, other parameter constants.
Can also carry out other default tests to electronic tag by remote equipment, for example, an example of step 509 is: remote equipment wakes test up to electronic tag.Concrete data are as follows:
(1) the special-purpose BST data of remote equipment emission are: FF FF FF FF 50 03 91 C0 01 FF FF FF 4B 22 7,355 00 01 1D 00, among this BST, the numerical value of command byte is 29(1DH), expression wakes test up to electronic tag.
(2) electronic tag is receiving that waking test up enters after the special instruction and wake test mode up, only returns system information and configuration information, and carries out entering dormant state after buzzing (the continuous 2) prompting.The VST data instance of returning: 02000000 C00391D00001C10100,27 B1B1BEA911010001 00 12 1,101,090,930,018,910 2,010,011,820,180,118 02000000100200, concrete meaning such as following table:
Another example of step 509 is: the test of electronic tag receptivity, and flow process is as follows:
(1) the special-purpose BST data of remote equipment emission are: FF FF FF FF 50 03 91 C0 01 FF FF FF 4B 22 7,355 00 01 1E 00, among this BST, the numerical value of command byte is 30(1EH), expression receives test to electronic tag.
(2) electronic tag enters after receiving reception test special instruction and wakes test mode up, only return system information and configuration information, the VST data instance of returning: 02000000 C00391D00001 C10100,27 B1B1BEA911010001 00 121,101,090,930,018,910 2,010,011,820,180,118 02000000100200
(3) remote equipment emission Action_Request Frame, wherein Action_Type numerical value is 81(51H), the transmit data frames of data receiver test is carried out in expression, is thereafter test data length byte and concrete data, and example is as follows,
02 00 00 00 40 77 91 05 00 51 LEN AB CD EF…AB
Wherein, LEN is the data length indication, and unit is byte, and LEN can get 0; AB CD after the LEN ... be test data, can be random number.
(4) electronic tag returns the Action_Response Frame, the expression reception result, and data instance is as follows,
02 00 E4 E0 E0 F7 00 91 18 AA XX XX XX XX YY YY YY YY 00
Wherein, the numerical value of AA is defined as: 00-correctly receives; FF-receives the CRC check mistake; Other mistakes of EE; XX XX XXXX represents the Frame number that has correctly received of count pick up device record; YY YY YY YY represents the frame number of CRC check mistake in the paid-in Frame of count pick up device record.The count pick up device of electronic tag before the dormancy or receive enter the test pattern instruction after zero clearing.
(5) remote equipment as required, repeating step (3)-(4) are until finish test.
(6) remote equipment emission END instruction Event_report, data instance is as follows:
02 00 E4 E0 40 03 91 60 00 00
(7) electronic tag enters dormant state after with the zero clearing of count pick up device.
As above-described embodiment further, can form automatic test and parameter adjustment system by remote equipment and testing apparatus, remote equipment is at first launched the test instruction of default parameters, then according to the testing result of testing apparatus, the radio communication parameter of electronic tag is adjusted.Adjust instruction by the remote equipment emission, after the electronic tag response, whether the messaging parameter scope that testing apparatus detects after the adjustment again is suitable.After overregulating, the presently used rf communication signal of electronic tag is set to only parameter, and this electronic tag will adopt this parameter to carry out the ETC transaction, thereby realize the purpose that this electronic tag is optimized for specific environment for use.
According to the above embodiments 1; also can adopt similar mode to come to regulate the test I C card that inserts according to testing result; for example the remote equipment in this example can be a device that automatically inserts and extract IC-card; according to the control of testing apparatus corresponding test I C card is inserted in the slot of IC-card of described vehicle carried electronic label; thereby the radio communication parameter to electronic tag is adjusted; the concrete physical construction of this remote equipment can design realization as required; this partial content within the protection domain of the present patent application, does not here repeat no more.
Above-mentioned two embodiment, when existing insertion IC-card and special-purpose BST signal dual mode to wake up simultaneously, the electronic tag preferential answering inserts the information of IC-card.Concrete scene is as follows:
Scene 1: electronic tag is waken up by the special test IC-card, carries out corresponding test, dormancy after finishing;
Scene 2: electronic tag is waken up by special-purpose BST, carries out corresponding test, dormancy after finishing;
Scene 3: electronic tag is waken up by special-purpose BST and IC-card simultaneously, and then preferential answering inserts the information of test I C card, carries out corresponding test, dormancy after finishing.
This mechanism can be passed through the control program of the instruction judging unit of electronic tag and realize.
According to above-described embodiment, Fig. 6 shows the complete function structural representation of embodiment of the invention vehicle carried electronic label.
Comprise radio frequency unit 601, baseband processing unit 602, IC-card read-write cell 603, man-machine interface (such as display screen, hummer etc.) 604, tamper unit 605, security control unit (ESAM) 606, cable data interface 607, power supply 608.
Wherein said baseband processing unit 602 can be made of microprocessor (MCU) and storer, wherein further comprise unit of testing and controlling 6021, the ETC unit 6022 of concluding the business, test cell 6023.
Wherein, radio frequency unit 601 is used for the reception of DSRC wake-up signal, reception and the emission of DSRC data.
Described baseband processing unit 602 be used for base band data processing, with exchanges data, the control of electronic tag test pattern and trade mode and the processing of steering logic of radio frequency unit and peripherals.
Described power supply 608 is used for providing the energy support to electronic tag.
Described cable data interface 607, the wireline interface when described vehicle carried electronic label need to carry out wired connection with peripherals.
Described IC-card read-write cell 603 is used for carrying out when vehicle carried electronic label inserts IC-card read-write operation, and the IC-card of insertion can also can be for contactless for contact.
Described security control unit 606 is used for realizing the data storage of electronic tag, the safety protection function of read-write.
Described tamper unit 605, for detection of, preserve the device of electronic tag disassembly status.
Described man-machine interface 604, such as display screen and hummer etc., for the main interface of user interactions.
Described unit of testing and controlling 6021, ETC transaction unit 6022 and test cell 6023 can be realized by the software among the MCU, also can pass through the realizations such as other hardware circuit or process chip.
By the embodiment of the invention, can use the special test IC-card, perhaps special-purpose BST tests and the radio frequency parameter setting the vehicle carried electronic label in the ETC system, arranges convenient and saves time and cost of labor.Wherein, when the test mode of special-purpose IC-card is applicable to analyze for some or certain parameter, carry out long data sampling test, perhaps outdoor manual testing; Adopt the method for testing of special-purpose BST to be applicable to carry out the robotization integration testing under the indoor microwave dark room environment.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; the protection domain that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. vehicle carried electronic label method of testing in the ETC system is characterized in that comprising,
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, the test signal that output is default is in order 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 comprises that the DSRC microwave signal that is sent by remote equipment wakes up or waken up by the IC-card that inserts.
3. method according to claim 2, it is characterized in that, when electronic tag is waken up by the DSRC microwave signal, receiving and resolve command information comprises, judgement enters mode of operation or test pattern according to the specified byte among the beacon service table BST, and according to the numerical value of this specified byte, carry out dissimilar tests.
4. method according to claim 2, it is characterized in that, when electronic tag insertion IC-card wakes up, receiving and resolve command information comprises, judgement enters mode of operation or test pattern according to the specified byte in the IC-card that inserts, and according to the numerical value of this specified byte, carry out dissimilar tests.
5. method according to claim 1 is characterized in that, described electronic tag is according to test instruction, and the default test signal of output comprises, launches specific test data, the full 0 sequence of different channels, complete 1 sequence, random number sequence or without modulated carrier signal.
6. method according to claim 1, it is characterized in that described electronic tag arranges one or more radio communication parameter of electronic tag according to test instruction, described radio frequency parameter comprises, emissive power, wakes sensitivity, receiving sensitivity and reception cut-off level up.
7. vehicle carried electronic label in the ETC system is characterized in that comprising,
The IC-card interface, DSRC interface, unit of testing and controlling, test cell;
Described IC-card interface is used for the grafting IC-card;
Described DSRC interface is used for receiving and emission dedicated short-range communication data;
Described unit of testing and controlling, be used for resolving electronic tag and be waken up command information afterwards, judge the mode of operation of electronic tag according to described command information, if described command information is test instruction, then described test cell calls the default test signal of described DSRC interface output, in order to carry out radio frequency signal quality test and/or the test of DSRC data transmit-receive.
8. vehicle carried electronic label in the ETC according to claim 7 system, it is characterized in that, when electronic tag is waken up by the DSRC microwave signal, judgement enters mode of operation or test pattern to described unit of testing and controlling according to the specified byte among the beacon service table BST, described test cell carries out dissimilar tests according to the numerical value of this specified byte.
9. vehicle carried electronic label in the ETC according to claim 7 system, it is characterized in that, when electronic tag insertion IC-card wakes up, judgement enters mode of operation or test pattern to described unit of testing and controlling according to the specified byte in the IC-card that inserts, described test cell carries out dissimilar tests according to the numerical value of this specified byte.
10. the test macro of a vehicle carried electronic label is characterized in that comprising such as the described vehicle carried electronic label of claim 7-9 any one, remote equipment, testing apparatus;
Wherein, described vehicle carried electronic label receives the command information that remote equipment sends, monitor the communication of described vehicle carried electronic label by testing apparatus, described testing apparatus is regulated described remote equipment according to test result and is again sent command information to described vehicle carried electronic label and test.
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Effective date of registration: 20160615 Address after: 100161 Beijing city Fengtai District six Lane Bridge No. 9 the first building block C room 902 Patentee after: BEIJING YILUXING TECHNOLOGY CO., LTD. Patentee after: Beijing Sutong Technology Co., Ltd. Address before: 100161 Beijing city Fengtai District six Lane Bridge No. 9 the first building block C room 902 Patentee before: Beijing Sutong Technology Co., Ltd. |