CN103236891A - System and method for testing dedicated short range communication (DSRC) equipment - Google Patents
System and method for testing dedicated short range communication (DSRC) equipment Download PDFInfo
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Abstract
The invention discloses a system and a method for testing dedicated short range communication (DSRC) equipment. The system comprises a testing computer, special testing equipment, a signal source and a microwave antenna, testing software is installed in the testing computer, the testing computer chooses test content and configure test parameters according to tested equipment and controls testing processes according to the test content and the text parameters, the special testing equipment generates DSRC test data under the control of the testing computer, receives response data returned by the tested equipment and sends the data after being analyzed to the testing computer, the signal source outputs the DSRC test data according to input data of the special testing equipment or programming instructions of the testing computer, the microwave antenna emits the DSRC test data provided by the special testing equipment or the signal source to the tested equipment, receives response returned by the tested equipment and provides the response to the special testing equipment, and the testing computer further determines test results according to the test data provided by the special testing equipment. By the system and the method, testing of protocol uniformity of a link layer and an application layer and key parameters and receiving performance indexes of a physical layer of the DSRC equipment can be realized, and product quality of the tested equipment can be guaranteed.
Description
Technical field
The present invention relates to the intelligent transport technology field, relate in particular to Dedicated Short Range Communications, DSRC device test system and method.
Background technology
Dedicated Short Range Communications, (Dedicated Short Range Communication, abbreviation DSRC) agreement is one of important basic communication protocol in the intelligent transportation system field, is widely used in fields such as road electric non-stop toll, Vehicular traffic information service, traffic information collection and the service of vehicle public safety.China in 2007 issuing and implementation GB/T20851 series DSRC national standard meets the highway ETC(Electronic Toll Collection of this standard, electric non-stop toll afterwards) technology and product obtained using widely.The automatic charging of ETC system is by track antenna RSU(Road side Unit, also claims roadside unit) and vehicle electronics label OBU(On Board Unit, also claim board units) mode by radio communication realizes.
The nucleus equipment of ETC system comprises: OBU, RSU, OBU distribution equipment etc., these nucleus equipments are as the DSRC special equipment, also can be applicable to other intelligent transportation fields, such as fields such as Vehicular traffic information service, traffic information collection and the services of vehicle public safety.At present these ETC system core equipment are by a plurality of manufacturer production, in real system is used, as fruit part protocol data and standard criterion be not inconsistent, the performance index disunity, can't carry out the problem of normal communication between may generation equipment.
The normal operation of DSRC communication system and carrying out smoothly of ETC business, the most important condition is the requirement that its nucleus equipment satisfies the correlation technique standard.To the ETC nucleus equipment, need the project of test to comprise physical layer index (carrier frequency, frequency tolerance, spurious emissions, the index of modulation, base band speed, waveform, antenna pattern, transmitted bandwidth, reception bandwidth, wake sensitivity, receiving sensitivity, reception cut-off level etc. up), the protocol conformance of data link layer and application layer, equipment application function etc.
For the physical layer emitting performance index of DSRC equipment such as carrier frequency, frequency tolerance, spurious emissions, the index of modulation, base band speed, waveform, antenna pattern, transmitted bandwidth etc., utilize general Microwave Test Equipment all can realize, as utilize frequency spectrograph and oscilloscope to detect the aforementioned physical layer emitting performance index of RSU, OBU and OBU distribution equipment.But for the receptivity index of DSRC nucleus equipment (receiving sensitivity, receive cut-off level, OBU wake sensitivity etc. up) test, owing to need the special testing equipment emission desired signal of customization, therefore no unified method of testing at present.Owing at first need the test data frame of design specialized, be entered in the special test equipment and send; Secondly need monitor monitoring and record test data to communication process; The 3rd needs to change signal power.Existing generic radio checkout equipment, as oscilloscope, signal source, spectrum analyzer, universal instrument, power meter etc., can't realize these specific test requests, for example can't judge the parameter threshold value of EOT, though and for example signal source can realize the automatic programming control of part, can't carry out demodulation to the DSRC data of returning and analyse.
Summary of the invention
The embodiment of the invention provides a kind of Dedicated Short Range Communications, DSRC device test system, in order to the protocol conformance of the physical layer key parameter of ETC system core equipment and performance index, data link layer and application layer, equipment application function etc. are detected, guarantee the product quality of equipment under test, this system comprises:
Test computer is equipped with testing software, is used for selecting content measurement and configuration testing parameter according to equipment under test, according to described content measurement and described test parameter control testing process;
Special test equipment is used under the control of described test computer, and generation DSRC test data also sends, and gives described test computer after the response data that the reception equipment under test returns and the parsing;
Signal source is used for according to the input data of special test equipment or the programming instruction output DSRC test data of test computer;
Microwave antenna, for launch the DSRC test data that special test equipment or signal source provide to equipment under test, the response that the reception equipment under test returns also offers special test equipment;
Described test computer also is used for determining test result according to the test data that special test equipment provides.
Described special test equipment comprises:
The baseband signal resolution unit is used for the base band data of radiofrequency signal receiving element output is resolved, and offers test computer;
The radiofrequency signal receiving element is for the signal that receives described microwave antenna;
The baseband signal generation unit is used for the instruction according to test computer, produces corresponding DSRC test data;
The radiofrequency signal generation unit is used for the baseband signal of described baseband signal generation unit is converted into radiofrequency signal;
Attenuator is used for described radiofrequency signal is decayed;
Control and record cell for the attenuation coefficient of controlling and record described attenuator, record the precise time that the transmission of described emission of radio frequency signals unit and described radiofrequency signal receiving element receive the equipment under test return data.
Described equipment under test is that vehicle electronics label (OBU), ETC trackside antenna (RSU), OBU are issued equipment, and described content measurement is protocol conformance, physical layer key parameter and receptivity index, the equipment application function etc. of equipment under test link layer and application layer;
Described physical layer performance test content comprise described equipment under test the receptivity index test (comprise described equipment under test receiving sensitivity, receive the sensitivity that wakes up of cut-off level and OBU) test.
The embodiment of the invention also provides a kind of DSRC apparatus testing method, detect in order to protocol conformance, physical layer key parameter and performance index, equipment application function etc. to physical layer, application layer and the application layer of ETC system core equipment, guarantee the product quality of equipment under test, this method comprises:
Step 1, test are prepared: connect testing equipment, test computer is selected content measurement and configuration testing parameter according to equipment under test;
Step 2, generation base band test data:
First kind of method that produces the base band test data is: test computer sends test instruction to special test equipment according to content measurement and test parameter, and special test equipment is received test instruction, produces the base band test data, and this method is conventional method;
Second kind of method that produces the base band test data is: can carry out the signal source model of automated programming for some, test computer can directly be exported to signal source with the base band test data, and not needing special test equipment to produce the test baseband signal, this moment, baseband signal generation unit and the emission of radio frequency signals unit of special test equipment did not participate in test;
Step 3, generation radio frequency testing data:
First kind of method that produces the base band test data in the corresponding step 2 of method of first kind of generation radio frequency testing data: the emission of radio frequency signals unit of special test equipment is converted into the radio frequency testing data with the base band test data and exports to microwave antenna;
First kind of method that produces the base band test data in the corresponding step 2 of method of second kind of generation radio frequency testing data: the baseband signal generation unit of special test equipment is exported to signal source with the base band test data, by signal source the base band test data is converted into the radio frequency testing data;
Second kind of method that produces the base band test data in the corresponding step 2 of method of the third generation radio frequency testing data: test computer offers signal source with the base band test data, by signal source the base band test data is converted into the radio frequency testing data;
Step 4, the aerial test signal of generation DSRC: the attenuator of special test equipment is sent the radio frequency testing data by microwave antenna after the radio frequency testing data are decayed;
Step 5, acceptance test signal are also separated new record: the radiofrequency signal receiving element of special test equipment receives the response signal of equipment under test, and after giving the base band data resolution unit parsing of special test equipment, offer test computer, simultaneously the control of special test equipment and the temporal information of recording unit records DSRC signal transmitting and receiving;
Step 6, statistical test result: test computer is determined test result according to the test data that special test equipment provides, and provides test result.This test data is not only the data of parsing, launches other data such as data, temporal information in addition.
In the invention process, what above-mentioned testing procedure can be because of test item and equipment under test is different slightly variant.
The present invention can realize ETC system core equipment, automation as the function of the protocol conformance of the physical layer key parameter of vehicle electronics label, ETC trackside antenna equipment, OBU distribution equipment etc. and technical indicator, data link layer and application layer and equipment application layer detects, guarantee the product quality of equipment under test, reduce manual testing's cost, improve test accuracy, shorten the testing time.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural representation of DSRC device test system in the embodiment of the invention;
Fig. 2 is the structural representation of special-purpose testing equipment in the embodiment of the invention;
Fig. 3 is the process chart of DSRC apparatus testing method in the embodiment of the invention;
The structural representation of the test macro when Fig. 4 is RSU for equipment under test in the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, below in conjunction with 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.
Fig. 1 is the structural representation of DSRC device test system in the embodiment of the invention.As shown in Figure 1, the DSRC device test system comprises in the embodiment of the invention:
In the present invention, test computer 101 can be connected by wired mode with special test equipment 102, as network interface or serial ports etc.; Connect by network interface between test computer 101 and the signal source 104; All adopt special-purpose connecting line to be connected between special test equipment 102 and signal source 104, special test equipment 102 and the microwave antenna 103; Microwave antenna 103 adopts the DSRC mode to communicate by letter with equipment under test.
Among the present invention, microwave antenna 103 is the test antenna of DSRC frequency range special use, and its signal gain and radiation direction all are known.
Nucleus equipment of the present invention is special test equipment 102, and special test equipment is as an overall work.Fig. 2 is the concrete illustrative view of functional configuration of special test equipment.As shown in Figure 2, special test equipment is made up of the following function module:
Baseband signal resolution unit 1021 is used for the base band data of radiofrequency signal receiving element output is resolved, and offers test computer;
Radiofrequency signal receiving element 1022 is for the signal that receives described microwave antenna;
Baseband signal generation unit 1023 is used for the instruction according to test computer, produces corresponding DSRC test data;
Emission of radio frequency signals unit 1024 is used for the baseband signal of described baseband signal generation unit is converted into radiofrequency signal;
Attenuator 1025 is used for described radiofrequency signal is decayed;
Control and record cell 1026 for the attenuation coefficient of controlling and record described attenuator, record the precise time that the transmission of described emission of radio frequency signals unit and described radiofrequency signal receiving element receive the equipment under test return data.
The DSRC device test system of the embodiment of the invention can detect ETC system core equipment such as the data link layer of OBU, RSU and OBU distribution equipment etc., protocol conformance, physical layer key parameter and receptivity index, the equipment application function etc. of application layer, guarantees the product quality of equipment under test.Concrete, the physical layer key parameter of equipment under test and receptivity index test comprise tested RSU, OBU and OBU distribution equipment receiving sensitivity, receive cut-off level, receive bandwidth, OBU wake one of sensitivity or combination up.When equipment under test was OBU, the output data of test computer simulation RSU were carried out DSRC with OBU and are communicated by letter, and the record communication data are with detection OBU performance; When equipment under test is RSU or OBU distribution equipment, the control information of the test computer simulation control tested RSU of computer control or OBU distribution equipment, the output data of simulating OBU are simultaneously carried out DSRC with tested RSU or OBU distribution equipment and are communicated by letter, and the record communication data are to detect the performance of tested RSU or OBU distribution equipment.
Fig. 3 is the process chart of DSRC apparatus testing method in the embodiment of the invention.As shown in Figure 3, the DSRC apparatus testing method can comprise in the embodiment of the invention:
First kind of method (3021) that produces the base band test data is: test computer sends test instruction to special test equipment according to content measurement and test parameter, special test equipment is received test instruction information, produce DSRC base band test data, this method is conventional method;
Second kind of method (3022) that produces the base band test data is: can carry out the signal source model of automated programming for some, test computer can directly be exported to signal source with test DSRC base band data, and not needing special test equipment to produce the test baseband signal, this moment, baseband signal generation unit and the emission of radio frequency signals unit of special test equipment did not participate in test.
First kind of method 3021 that produces the base band test data in the corresponding step 302 of method (3031) of first kind of generation radio frequency testing data: the emission of radio frequency signals unit 1024 of special test equipment is converted into radiofrequency signal with the base band test data and exports to microwave antenna, this moment, the linked switch of Fig. 2 was pulled upward, i.e. terminal A;
First kind of method 3021 that produces the base band test data in the corresponding step 302 of method (3032) of second kind of generation radio frequency testing data: the baseband signal generation unit 1023 of special test equipment is exported to signal source with the base band test data, by signal source baseband signal is converted into radiofrequency signal, this moment, the linked switch of Fig. 2 was pulled downwards, i.e. terminal B;
Second kind of method 3022 that produces the base band test data in the corresponding step 302 of method (3032) of the third generation radio frequency testing data: test computer offers signal source with the base band test data, by signal source base band data is converted into radiofrequency signal, the linked switch in the left side of Fig. 2 is unsettled at this moment, the linked switch on right side is pulled downwards, i.e. terminal B.
The difference of these three kinds of radiofrequency signal production methods only is limited by the performance of equipment, if the radio frequency quality of output signals of signal source is higher, then preferentially select signal source (second kind or the third method) emitting radio frequency signal, this moment, the linked switch of Fig. 2 was pulled downwards, i.e. terminal B; The signal quality of the radio frequency signal generation unit of special test equipment and scope are better else if, then can select the radio frequency signal generation unit 1024(first method of special test equipment oneself) the output radiofrequency signal, this moment, the linked switch of Fig. 2 was pulled upward, i.e. terminal A.
At concrete test item, implementation detail of the present invention is described below:
Embodiment 1:OBU wakes sensitivity test up
The physical layer of present embodiment test OBU is waken sensitivity index up, in the present embodiment, test computer simulation RSU, carrying out DSRC with tested OBU communicates by letter and detects it and wake sensitivity up, equipment connects sees Fig. 1, wherein base band test signal and radio frequency testing signal produce by special test equipment, and method is as follows:
Step 1, test are prepared: test computer is selected and the configuration testing parameter, apart 3 meters (the concrete value of this distance can be set according to actual needs for tested OBU and microwave antenna, need satisfy far field condition), tested OBU is consistent with the phase center direction of microwave antenna simultaneously;
Step 2, generation base band test data: operation ETC radio-frequency (RF) index special test software in test computer, drive special test equipment and produce test data, in the present embodiment, test data is BST(Beacon Service Table, the beacon service table) signal;
Step 3, generation radio frequency testing signal: the rf data transmitter unit of special test equipment produces radiofrequency signal, and the left side linked switch is pulled to terminal A among Fig. 2 at this moment;
Step 4, the aerial test signal of generation DSRC: regulate special test equipment attenuator decay factor, give tested OBU by the aerial test b ST of microwave antenna emission DSRC signal, the right side linked switch is pulled to terminal A among Fig. 2 at this moment;
Step 5, acceptance test signal are also separated new record: the radiofrequency signal receiving element of special test equipment receives the response signal of tested OBU, and response signal is VST in this test case; The base band data resolution unit of special test equipment is resolved the data that receive, and offers test computer, simultaneously the temporal information of special test equipment record DSRC signal transmitting and receiving.
In the present embodiment, during the test beginning, the decay of the attenuator of special test equipment is bigger, and tested OBU does not return response VST signal; Return step 4 this moment, regulate the decay factor of the attenuator of special test equipment, gradually reduce pad value, improve the power of the BST signal of microwave antenna emission, be waken up and return the VST(Vebicle Service Table of expectation until OBU, the vehicle service table) signal, the control of special test equipment and the numerical value of recording unit records decay factor are finished once test at this moment;
Step 6, statistical test value: repeating step 1-5, carry out 5 tests, the numerical value of the control of special test equipment and 5 decay factors of recording unit records, and counter mean value are made as S.
Step 7, simulation test also provide the result: position and the state of other testing equipments are constant, tested OBU is replaced with power meter, power meter is connected by special-purpose wired mode with microwave antenna, and the inhibit signal source power is constant subsequently, and the pad value that attenuator is set is S; Test computer control special test equipment output single carrier signal, with the signal power P that power instrumentation amount is received, the sensitivity that wakes up of calculating OBU, the dBm of unit, computing formula is:
OBU wakes sensitivity=P-G up;
Wherein, P is signal power, and unit is dBm; G is the gain of microwave antenna, and unit is dB.
Embodiment 2:OBU testing protocol consistency
The data link layer of present embodiment test OBU and the protocol conformance of application layer, in the present embodiment, test computer simulation RSU, carry out the accordance that DSRC communicates by letter and detects its protocol data with tested OBU, the equipment connection is seen shown in Figure 1, wherein the base band test signal is produced by special test equipment, and the radio frequency testing signal is produced by signal source, and method is as follows:
Step 1, test are prepared: test computer is selected and the configuration testing parameter, apart 3 meters (the concrete value of this distance can be set according to actual needs for tested OBU and microwave antenna, need satisfy far field condition), tested OBU is consistent with the phase center direction of microwave antenna simultaneously;
Step 2, generation base band test data: operation DSRC protocol conformance special test software in test computer, drive special test equipment and produce test data, in the present embodiment, the serial DSRC signal of test data for beginning with BST;
Step 3, generation radio frequency testing signal: special test equipment produces the input that base band data offers signal source, produces the radio frequency testing signal by signal source, and the linked switch of left and right sides is all pulled to terminal B among Fig. 2 at this moment;
Step 4, the aerial test signal of generation DSRC: regulate special test equipment attenuator decay factor, give tested OBU by the aerial test signal of microwave antenna emission DSRC;
In the present embodiment, during the test beginning, the numerical value of the attenuator of special test equipment arranges the DSRC test signal that needs assurance OBU can effectively receive the microwave antenna emission and gets final product, and no longer regulates decay factor in the test process, and its numerical value also need not record.
Step 5, acceptance test signal are also separated new record: the radiofrequency signal receiving element of special test equipment receives the response signal of tested OBU; The base band data resolution unit of special test equipment is resolved the data that receive, and offers test computer, simultaneously the temporal information of special test equipment record DSRC signal transmitting and receiving.
Step 6, statistical test result: repeating step 1-5, carry out the test of variety of protocol test case.Should comprise the BST wake-up signal in the radiofrequency signal that each test case sends for the first time, guarantee that OBU is effectively waken up.Special test equipment records the time that transmits and receives of test signal, and intactly offers test computer with test data.Whether test computer acceptance test return results is also resolved and is judged meet the requirements according to the program setting judged result, generates test report.
Embodiment 3:RSU testing protocol consistency
The data link layer of present embodiment test RSU and the protocol conformance of application layer, in the present embodiment, test computer simulated roadway computer, to tested RSU emission control instruction, also simulate OBU simultaneously, carry out the accordance that DSRC communicates by letter and detects its protocol data with tested RSU, connection layout is seen shown in Figure 4, wherein the base band test signal is produced by special test equipment, and the radio frequency testing signal is produced by signal source, and concrete grammar is as follows:
Step 1, test are prepared: test computer is selected and the configuration testing parameter, apart 3 meters (the concrete value of this distance can be set according to actual needs for tested RSU and microwave antenna, need satisfy far field condition), tested RSU is consistent with the phase center direction of microwave antenna simultaneously;
Step 2, generation base band test data: operation DSRC protocol conformance special test software in test computer, drive special test equipment and produce test data, in the present embodiment, computer is at first controlled tested RSU emission with the DSRC wake-up signal that BST begins, and simulates OBU afterwards again and receives and respond upward signal;
Step 3, generation radio frequency testing signal: test computer is controlled tested RSU emission downlink data, simulate OBU simultaneously and return correct and incorrect up response data, detect the protocol data accordance of RSU, simulation OBU is namely produced by special test equipment to data, be converted into the radio frequency testing signal by signal source, the linked switch of left and right sides is all pulled to terminal B among Fig. 2 at this moment;
Step 4, the aerial test signal of generation DSRC: regulate special test equipment attenuator decay factor, guarantee that microwave antenna can receive the up-downgoing test data, test computer is controlled tested RSU and is communicated by letter with special test equipment simulation ETC, the radiofrequency signal receiving element of special test equipment receives the signal of tested RSU, the base band data resolution unit of special test equipment is resolved the data that receive, offer test computer, simultaneously the temporal information of special test equipment record DSRC signal transmitting and receiving.
In the present embodiment, during the test beginning, the numerical value of the attenuator of special test equipment arranges the DSRC test signal that needs assurance OBU can effectively receive the microwave antenna emission and gets final product, and no longer regulates decay factor in the test process, and its numerical value also need not record.
Step 5, statistical test result: repeating step 1-4, carry out the test of variety of protocol test case.Each test case has tested RSU to send the BST wake-up signal for the first time.Special test equipment records the time that transmits and receives of test signal, and intactly offers test computer with test data.Whether test computer acceptance test return results is also resolved and is judged meet the requirements according to the program setting judged result, generates test report.
Embodiment 4:OBU receives bandwidth test
The physical layer signal of present embodiment test OBU receives bandwidth, in the present embodiment, test computer simulation RSU, carrying out DSRC with tested OBU communicates by letter and detects it and wake sensitivity up, equipment connects sees Fig. 1, wherein the base band test signal is produced by test computer, and the radio frequency testing signal is produced by signal source, and method is as follows:
Step 1, test are prepared: test computer is selected and the configuration testing parameter, apart 3 meters (the concrete value of this distance can be set according to actual needs for tested OBU and microwave antenna, need satisfy far field condition), tested OBU is consistent with the phase center direction of microwave antenna simultaneously;
Step 2, produce the base band test data: operation ETC radio-frequency (RF) index special test software in test computer, drive special test equipment and produce test data, the left side linked switch is unsettled among this moment Fig. 2;
Step 3, generation radio frequency testing signal: the computer control of signal source tested person produces the radio frequency testing signal, and the right side linked switch is pulled the terminal to B among Fig. 2 at this moment;
Step 4, the aerial test signal of generation DSRC: regulate special test equipment attenuator decay factor, give tested OBU by the aerial test signal of microwave antenna emission DSRC;
In the present embodiment, during the test beginning, the numerical value of the attenuator of special test equipment arranges needs to guarantee that tested OBU can effectively receive the DSRC test signal of microwave antenna emission, and after this decay factor no longer changes.
Test computer is emission special test BST signal earlier, after receiving, tested OBU is in the acceptance test pattern, after this identical descending test DSRC data of test computer emission, as the Transferchannel.request order, tested OBU returns the Transferchannel.response signal.
Step 5, acceptance test signal are also separated new record: the radio-frequency carrier center frequency point of adjusting signal source, the certain numerical value of descending center frequency point that departs from setting, no longer reply Transferchannel.response until OBU, then finish once test, record this and test last signal source and depart from the frequency numerical value of setting carrier wave.
Step 6, statistical test result: repeating step 1-5, carry out 5 tests, calculate the mean value of departure freqency.
Wherein, the difference that departs from respect to the frequency twocouese of setting center carrier frequence is the reception bandwidth of tested OBU, as when launching descending carrier and setting center frequency point and be 5.79GHz, if the offset carrier frequency of twocouese is respectively 5.785GHz and 5.795GHz, then the reception bandwidth of OBU is 5.795-5.785=100MHz.
If equipment under test has different channels, then repeat above step and measure reception bandwidth under the different channels respectively.
Embodiment 5:RSU receives bandwidth test
The physical layer signal of present embodiment test RSU receives bandwidth, in the present embodiment, test computer simulated roadway computer, to tested RSU emission control instruction, also simulate simultaneously OBU, carrying out DSRC with tested RSU communicates by letter and detects it and receive bandwidth, connection layout as shown in Figure 4, wherein the base band test signal is produced by test computer, the radio frequency testing signal is produced by signal source, method of testing is substantially the same manner as Example 4, and difference is that controlling tested RSU by test computer is in the acceptance test state, no longer launches data.
Embodiment 6:OBU receives the cut-off level test
In the present embodiment, test computer simulation RSU carries out DSRC with tested OBU and communicates by letter and detect it and receive cut-off level, and equipment connects sees Fig. 1, and wherein the base band test signal is produced by test computer, and the radio frequency testing signal is produced by signal source, and method is as follows:
Step 1, test are prepared: test computer is selected and the configuration testing parameter, apart 3 meters (the concrete value of this distance can be set according to actual needs for tested OBU and microwave antenna, need satisfy far field condition), tested OBU is consistent with the phase center direction of microwave antenna simultaneously;
Step 2, produce the base band test data: operation ETC radio-frequency (RF) index special test software in test computer, drive special test equipment and produce test data, the left side linked switch is unsettled among this moment Fig. 2;
Step 3, generation radio frequency testing signal: the computer control of signal source tested person produces the radio frequency testing signal, and the right side linked switch is pulled the terminal to B among Fig. 2 at this moment;
Step 4, the aerial test signal of generation DSRC: regulate special test equipment attenuator decay factor, give tested OBU by the aerial test signal of microwave antenna emission DSRC;
In the present embodiment, during the test beginning, the numerical value of the attenuator of special test equipment arranges needs to guarantee that tested OBU can effectively receive the DSRC test signal of microwave antenna emission.
Test computer is emission special test BST signal earlier, after receiving, tested OBU is in the acceptance test pattern, after this identical descending test DSRC data of test computer emission, as the Transferchannel.request order, tested OBU returns the Transferchannel.response signal.
Step 5, acceptance test signal are also separated new record: the decay numerical value that increases special test equipment, no longer reply Transferchannel.response until OBU, the control of special test equipment and the numerical value of recording unit records decay factor are finished once test at this moment.
Step 6, statistical test value: repeating step 1-5, carry out 5 tests, the numerical value of the control of special test equipment and 5 decay factors of recording unit records, and add up its mean value, be made as S.
Step 7, simulation test also provide the result: position and the state of other testing equipments are constant, tested OBU is replaced with power meter, power meter is connected by special-purpose wired mode with microwave antenna, and the inhibit signal source power is constant subsequently, and the pad value that attenuator is set is S; Test computer control special test equipment output single carrier signal, with the signal power P that power instrumentation amount is received, the sensitivity that wakes up of calculating OBU, the dBm of unit, computing formula is:
Reception cut-off level=P-G of OBU;
Wherein, P is signal power, and unit is dBm; G is the gain of microwave antenna, and unit is dB.
Embodiment 5:RSU receives the cut-off level test
In the present embodiment, test computer simulated roadway computer, to tested RSU emission control instruction, also simulate OBU simultaneously, carry out DSRC with tested RSU and communicate by letter and detect it and receive cut-off level, connection layout as shown in Figure 4, wherein the base band test signal is produced by test computer, and the radio frequency testing signal is produced by signal source, and method of testing is substantially the same manner as Example 6, difference is that controlling tested RSU by test computer is in the acceptance test state, no longer launches data.
In sum, the present invention can realize ETC system core equipment, automation as the function of the protocol conformance of the physical layer key parameter of vehicle electronics label, ETC trackside antenna equipment, OBU distribution equipment etc. and technical indicator, data link layer and application layer and equipment application layer detects, guarantee the product quality of equipment under test, reduce manual testing's cost, improve test accuracy, shorten the testing time.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software embodiment or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make and carry out the sequence of operations step producing computer implemented processing at computer or other programmable devices, thereby be provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction that computer or other programmable devices are carried out.
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; and be not intended to limit the scope of the 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 (9)
1. Dedicated Short Range Communications, DSRC device test system is characterized in that this system is made up of following equipment:
Test computer is equipped with testing software, is used for selecting content measurement and configuration testing parameter according to equipment under test, according to described content measurement and described test parameter control testing process;
Special test equipment is used under the control of described test computer, and generation DSRC test data also sends, and gives described test computer after the response data that the reception equipment under test returns and the parsing;
Signal source is used for according to the input data of special test equipment or the programming instruction output DSRC test data of test computer;
Microwave antenna, for launch the DSRC test data that special test equipment or signal source provide to equipment under test, the response that the reception equipment under test returns also offers special test equipment;
Described test computer also is used for determining test result according to the test data that special test equipment provides.
2. DSRC device test system as claimed in claim 1 is characterized in that, described special test equipment comprises:
The baseband signal resolution unit is used for the base band data of radiofrequency signal receiving element output is resolved, and offers test computer;
The radiofrequency signal receiving element is for the signal that receives described microwave antenna;
The baseband signal generation unit is used for the instruction according to test computer, produces corresponding DSRC test data;
The emission of radio frequency signals unit is used for the baseband signal of described baseband signal generation unit is converted into radiofrequency signal;
Attenuator is used for described radiofrequency signal is decayed;
Control and record cell for the attenuation coefficient of controlling and record described attenuator, record the precise time that the transmission of described emission of radio frequency signals unit and described radiofrequency signal receiving element receive the equipment under test return data.
3. DSRC device test system as claimed in claim 2, it is characterized in that, described equipment under test is vehicle electronics label OBU, track antenna RSU or OBU distribution equipment, and described content measurement is one of protocol conformance, physical layer key parameter and receptivity index, equipment application function of equipment under test link layer and application layer or combination.
4. DSRC device test system as claimed in claim 3, it is characterized in that, the physical layer key parameter of described equipment under test and receptivity index test comprise tested RSU, OBU and OBU distribution equipment receiving sensitivity, receive cut-off level, receive bandwidth, OBU wake one of sensitivity or combination up.
5. DSRC device test system as claimed in claim 1 is characterized in that, if described equipment under test is when being OBU, the output data of test computer simulation RSU are carried out DSRC with OBU and communicated by letter, and the record communication data are with detection OBU performance; When if described equipment under test is RSU or OBU distribution equipment, the control information of the test computer simulation control tested RSU of computer control or OBU distribution equipment, simulate OBU simultaneously and carry out DSRC with tested RSU or OBU distribution equipment and communicate by letter, and the record communication data are to detect tested RSU or OBU distribution equipment performance.
6. a DSRC apparatus testing method is characterized in that, comprising:
Step 1, test are prepared: connect testing equipment, test computer is selected content measurement and configuration testing parameter according to equipment under test;
Step 2, generation base band test data;
Step 3, generation radio frequency testing data;
Step 4, the aerial test signal of generation DSRC: the attenuator of special test equipment is sent the radio frequency testing data by microwave antenna after the radio frequency testing data are decayed;
Step 5, acceptance test signal are also separated new record: the radiofrequency signal receiving element of special test equipment receives the response signal of equipment under test, and after giving the base band data resolution unit parsing of special test equipment, offer test computer, simultaneously the control of special test equipment and the temporal information of recording unit records DSRC signal transmitting and receiving;
Step 6, statistical test result: test computer is determined test result according to the test data that special test equipment provides, and provides test result.
7. DSRC apparatus testing method as claimed in claim 6 is characterized in that, produces the base band test data, comprising:
Test computer sends test instruction to special test equipment according to content measurement and test parameter, and the baseband signal generation unit of special test equipment is received test instruction, produces the base band test data; Produce the radio frequency testing data, comprising:
The emission of radio frequency signals unit of special test equipment is converted into the radio frequency testing data with the base band test data;
Or the baseband signal generation unit of special test equipment is exported to signal source with the base band test data, by signal source the base band test data is converted into the radio frequency testing data.
8. DSRC apparatus testing method as claimed in claim 6 is characterized in that, produces the base band test data, comprising:
Test computer produces the base band test data;
Produce the radio frequency testing data, comprising:
Test computer offers signal source with the base band test data, by signal source the base band test data is converted into the radio frequency testing data.
9. DSRC apparatus testing method as claimed in claim 6 is characterized in that, described equipment under test is OBU, RSU and OBU distribution equipment, and described content measurement is protocol conformance and the key parameter of equipment under test link layer and application layer.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340601A (en) * | 2008-08-15 | 2009-01-07 | 北京航空航天大学 | Measurement receiver for digital television |
| CN102789654A (en) * | 2012-08-03 | 2012-11-21 | 北京速通科技有限公司 | Method and system for protocol conformance testing of electronic toll collection core equipment |
-
2013
- 2013-04-17 CN CN201310133192.9A patent/CN103236891B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340601A (en) * | 2008-08-15 | 2009-01-07 | 北京航空航天大学 | Measurement receiver for digital television |
| CN102789654A (en) * | 2012-08-03 | 2012-11-21 | 北京速通科技有限公司 | Method and system for protocol conformance testing of electronic toll collection core equipment |
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Effective date of registration: 20160621 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. |