CN103487676B - The method of test RFID performance and device thereof - Google Patents
The method of test RFID performance and device thereof Download PDFInfo
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Abstract
A kind of method and device testing RFID performance that the present invention proposes, described detection method comprises the steps: that a. launches activation signal in measuring distance S to electronic tag, and receives the answer signal of electronic tag feedback and obtain the differentiation data of electronic tag performance；B. will differentiate with preset being used for, data determine that the reference data of electronic tag performance compares；C. according to differentiating that the data comparative result with preset data determines the performance of electronic tag；Method and device by test RFID performance disclosed by the invention, the performance of electronic tag can be detected, and accurately judge the performance of electronic tag, the administrative vulnerability that the information preventing the electronic tag being arranged on vehicle cannot read and occur, and method of testing is the most efficient.
Description
Technical field
The present invention relates to a kind of method of testing, particularly relate to a kind of method testing RFID performance and
Its device.
Background technology
At intelligent transportation field, intelligent wireless radio frequency identification (RFID) technology is utilized to carry out adopting of transport information
Collection finds broad application, and its basic operation principle is: installs on vehicle and utilizes passive label to input car
And the relevant traffic management information such as driver after the electronic tag (radio-frequency card) that formed, then at each cloth the most in advance
The road surface point put installs read write line, and read write line generates electromagnetic signal and passes through read-write antenna with certain power to nothing
Source electronic tag is launched, and the label antenna of passive electronic label receives this signal and is activated, and electronic tag (is penetrated
Frequency card) be activated after the information of vehicles stored in radio-frequency card is fed back to read write line in the way of electromagnetic signal,
Read write line is by processing procedures such as demodulation thus obtains information of vehicles；Owing to electronic tag is when dispatching from the factory, different
The performance of the label of batch there may be flaw, after electronic tag is installed in vehicle, and warp in installation process
The factors such as extruding, folding often occur, easily causes radio-frequency card and damage, and current, and also not having can be to installation
After the electronic tag method that carries out quality testing, therefore, easily causing information of vehicles cannot be identified, and holds
Administrative vulnerability easily occurs.
In view of this, need to propose a kind of method that the performance of the electronic tag after installing is detected and dress
Put, it is possible to the performance of electronic tag is detected, and accurately judge the performance of electronic tag, prevent from installing
The administrative vulnerability that the information of the electronic tag on vehicle cannot read and occur, and method of testing is the highest
Effect.
Summary of the invention
In view of this, a kind of method and device testing RFID performance that the present invention proposes, it is possible to
The performance of electronic tag is detected, and accurately judges the performance of electronic tag, prevent from being arranged on vehicle
The information of electronic tag cannot read and the administrative vulnerability that occurs, and method of testing is the most efficient.
A kind of method testing RFID performance disclosed by the invention, described detection method includes as follows
Step:
A. launch activation signal in measuring distance S to electronic tag, and receive the response letter of electronic tag feedback
Number and obtain the differentiation data of electronic tag performance；
B. will differentiate with preset being used for, data determine that the reference data of electronic tag performance compares；
C. according to differentiating that the data comparative result with preset data determines the performance of electronic tag；
Further, in step a, described differentiation data are included in the reception success of the answer signal of different distance
Rate and the energy value of answer signal；
Further, in step b, described reference data is included in the reception success of the answer signal of different distance
The energy value basic parameter of rate basic parameter and answer signal；
Further, in step c, determine that the performance of electronic tag includes:
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is higher than successfully
Rate basic parameter, the energy value of answer signal is higher than energy value basic parameter, it is determined that RFID
Performance is normal；
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is higher than successfully
Rate basic parameter, the energy value of answer signal is less than energy value basic parameter, it is determined that RFID
Performance is normal, but answer signal is by external interference.
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is less than into
Power reference parameter, the energy value of answer signal is higher than energy value basic parameter, it is determined that RFID
Performance be normal, but activation signal is by external interference.
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is less than into
Power reference parameter, the energy value of answer signal is less than energy value basic parameter, then adjust test point with tested
The distance of examination radio-frequency card, returns step a and continues test；
Further, step C4 farther includes: when the comparative result in step b is answering of current distance S
The successful receiving rate answering signal is less than energy value benchmark less than success rate basic parameter, the energy value of answer signal
Parameter, is adjusting the distance of test point and tested electronic tag, returns when step a continues to test return
The number of times of step a adds up, when the number of times returning step a is added to preset value N, it is determined that RFID
The performance of electronic tag is abnormal or damages.
A kind of device testing RFID performance that the present invention provides, including:
Radiofrequency signal Transmit-Receive Unit, for sending activation signal and to RFID to tested RFID
The answer signal of electronic tag is received；Central processing module, is used for receiving radiofrequency signal Transmit-Receive Unit defeated
The answer signal gone out the successful receiving rate and the energy value that are received answer signal calculate, and according to meter
Calculation result compares with success rate basic parameter and the energy value basic parameter of preset answer signal and exports
Comparative result；
Further, described central processing module includes:
Success rate computing unit, electrically connects with described radiofrequency signal Transmit-Receive Unit, is used for calculating reception response letter
Number success rate and export；
Answer signal energy value measuring unit, electrically connects with described radiofrequency signal transmitting-receiving power supply, should for calculating
Answer the energy value of signal and export；
Central processing unit, electrically connects also with described success rate computing unit and answer signal energy value test cell
Preset success rate basic parameter and the energy value basic parameter of answer signal, for receiving connecing of answer signal
Harvest power and the energy value of answer signal also enter with preset success rate basic parameter and energy value basic parameter
Row compares, and exports comparative result；
Further, described central processing module also include the electrical connection with described central processing unit for returning
The number of times returning step a carries out the enumerator that counts, when enumerator is added to more than or equal to preset value N, tired
Add device reset and export reset signal to CPU；
Further, the range sensor for measuring current measuring distance S, described range sensor are also included
Electrical connection with described central processing unit also exports distance signal to central processing unit；
Further, also include the display unit electrically connected with described central processing unit, for test RFID
The parameter of electronic tag performance shows.Beneficial effects of the present invention: by test disclosed by the invention
The method and device of RFID performance, it is possible to the performance of electronic tag is detected, and accurately sentences
The performance of power-off subtab, prevents the information of the electronic tag being arranged on vehicle from cannot read and the pipe that occurs
Reason leak, and method of testing is the most efficient；Corresponding test device provided by the present invention, it is simple to carry,
Use flexibly, hand-holdable carry out test job to detecting position, saved human cost.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the flow chart of the method for test electronic tag performance.
Fig. 2 is the structural representation of the device of test electronic tag performance.
Detailed description of the invention
Fig. 1 is the flow chart of the method for test electronic tag performance, and Fig. 2 is the dress of test electronic tag performance
The structural representation put, as it can be seen, a kind of method testing RFID performance disclosed by the invention,
Described detection method comprises the steps:
A. launch activation signal in measuring distance S to electronic tag, and receive the response letter of electronic tag feedback
Number and obtain the differentiation data of electronic tag performance；Wherein, measuring distance S is test point and tested electronics
Distance between label, and measuring distance S can according to test needs be adjusted；
B. will differentiate with preset being used for, data determine that the reference data of electronic tag performance compares；
C. according to differentiating that the data comparative result with preset data determines the performance of electronic tag；
In the present embodiment, in step a, described differentiation data are included in the reception of the answer signal of different distance
Success rate and the energy value of answer signal；Wherein, the success rate receiving answer signal referred in the same time
The total degree of answer signal and the ratio sending activation signal total degree is received in interval；The energy of answer signal
Value refers to the energy value of the answer signal at current measuring distance S.
In the present embodiment, in step b, described reference data is included in the reception of the answer signal of different distance
The energy value basic parameter of success rate basic parameter and answer signal；Wherein, successful receiving rate basic parameter
The factor of external interference is should be taken into account, the interference journey suffered by the test environment of different distance when arranging
Spend different, i.e. the performance of label is affected by distance factor；Therefore, according to different distance, described one-tenth
Power reference parameter and energy value basic parameter are respectively provided with because distance is different.Such as, in the present embodiment,
Choosing 3m scope to test, successful receiving rate basic parameter should be not less than the total emitting times of activation signal
70%；The energy value basic parameter of answer signal should be taken into account when arranging owing to electromagnetic signal is in transmittance process
Decay, external interference and the factor of measuring distance, such as, set label quilt when electronic tag dispatches from the factory
Transmitting power after activation, therefore, the energy value at electronic tag transmitting answer signal determines that, then
The basic parameter of answer signal should be less than energy value during electronic tag transmitting answer signal when arranging.
In the present embodiment, in step c, determine that the performance of electronic tag includes:
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is higher than successfully
Rate basic parameter, the energy value of answer signal is higher than energy value basic parameter, it is determined that RFID
Performance is normal；
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is higher than successfully
Rate basic parameter, the energy value of answer signal is less than energy value basic parameter, it is determined that RFID
Performance is normal, but answer signal is by external interference, owing to successful receiving rate is higher than success rate basic parameter,
Then can illustrate that electronic tag can be activated by activation signal effectively, and electronic tag is at activation signal
Effect under can normal response, answer signal is decayed excessive under extraneous interference thus is caused answer signal
Energy value is less than energy value basic parameter；
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is less than into
Power reference parameter, the energy value of answer signal is higher than energy value basic parameter, it is determined that RFID
Performance be normal, but activation signal is by external interference, and acting charitably due to activated row receives external interference, not
It is that the activation signal every time launched can activate electronic tag, but activation signal once can activate electronics mark
Signing, answer signal is not affected by interference all can be higher than energy value basic parameter by value, therefore, causes and connects
Harvest power is less than success rate basic parameter；
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is less than into
Power reference parameter, the energy value of answer signal is less than energy value basic parameter, then adjust test point with tested
The distance of examination electronic tag, returns step a and continues test, when adjusting distance, generally shorten test point with
The distance of tested electronic tag, step C4 farther includes: when the comparative result in step b is current
The successful receiving rate of the answer signal of distance S is less than success rate basic parameter, and the energy value of answer signal is less than
Energy value basic parameter, is adjusting the distance of test point and tested radio-frequency card, is returning step a and continue test
Time to return step a number of times add up, to return step a number of times added up by enumerator,
When return step a number of times be added to preset value N time, it is determined that the performance of RFID be exception or
Damage, wherein, the setting of the preset value N of cumulative number, can set according to site testing data.
Correspondingly, a kind of device testing RFID performance that the present invention provides, including:
Radiofrequency signal Transmit-Receive Unit, for sending activation signal and to RFID to tested RFID
The answer signal of electronic tag is received；
Central processing module, for receiving the answer signal of radiofrequency signal Transmit-Receive Unit output and being received answering
Successful receiving rate and the energy value of answering signal calculate, and according to result of calculation and preset answer signal
Success rate basic parameter and energy value basic parameter compare and export comparative result, true by comparative result
Determine the performance of electronic tag.
In the present embodiment, described central processing module includes:
Success rate computing unit, electrically connects with described radiofrequency signal Transmit-Receive Unit, is used for calculating reception response letter
Number success rate and export, described success rate computing unit is by the transmitting total degree of activation signal and should
Answer the reception total degree of signal and carry out statistical computation, and by the reception total degree of answer signal and activation signal
The ratio of the total degree launched exports as power signal；
Answer signal energy value measuring unit, electrically connects with described radiofrequency signal transmitting-receiving power supply, should for calculating
Answering the energy value of signal and export, answer signal energy value measuring unit receives at current measuring distance S
The energy value of answer signal measure and export energy value signal；
Central processing unit, electrically connects also with described success rate computing unit and answer signal energy value test cell
Preset success rate basic parameter and the energy value basic parameter of answer signal, for receiving connecing of answer signal
Harvest power and the energy value of answer signal also enter with preset success rate basic parameter and energy value basic parameter
Row compares, and exports comparative result.
In the present embodiment, described central processing module also include the electrical connection with described central processing unit for
To returning the enumerator that counts of number of times of step a, and enumerator will return the number of times transmission of step a
To central processing unit, current accumulative frequency is compared by central processing unit with preset value N, when enumerator tires out
When adding number of times more than or equal to preset value N, central processing unit sends clear command to enumerator and makes enumerator
Reset, the result of determination of now central processing unit output electronic tag performance and judge the performance of electronic tag as
Exception or damage, when the count accumulation of enumerator is less than preset value N, then adjust current test point and quilt
The distance of test electronic tag, again tests, and the technology of enumerator adds 1.
In the present embodiment, also include that the range sensor for measuring current measuring distance S, described distance pass
The electrical connection of sensor and described central processing unit also exports distance signal, range sensor pair to central processing unit
Current detection point carries out testing and exporting distance signal, when needs are adjusted again with the distance of tested electronic tag
During whole measuring distance, then the distance after range sensor will adjust measures and exports distance signal to central authorities
Processor.In the present embodiment, also include the display unit electrically connected with described central processing unit, for survey
The parameter of examination RFID performance shows, it is simple to tester observes and conclusion intuitively
Draw；This test device be additionally provided with power supply unit and memory element, power supply unit can use electric power storage
Pond, it would however also be possible to employ be converted to powered by direct current by civil power, but, for the ease of carrying and mobile,
Typically using storage battery power supply, memory element carries out record to the parameter in test process and puts on record.Certainly, originally
Device also can arrange the keyboard (not marking in figure) being connected with described central processing unit, and described keyboard is for surveying
Described success rate basic parameter and energy value basic parameter are configured by test ring border, it is simple to the input of instruction
And change.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although
With reference to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that,
Technical scheme can be modified or equivalent, without deviating from technical solution of the present invention
Objective and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (6)
1. the method testing RFID performance, it is characterised in that: described
Method of testing comprises the steps:
A. launch activation signal in measuring distance S to electronic tag, and receive the answer signal of electronic tag feedback and obtain the differentiation data of electronic tag performance；
B. will differentiate with preset being used for, data determine that the reference data of electronic tag performance compares；
C. according to differentiating that the data comparative result with preset data determines the performance of electronic tag；
In step a, described differentiation data are included in successful receiving rate and the energy value of answer signal of the answer signal of different distance；
In step b, described reference data is included in the successful receiving rate basic parameter of the answer signal of different distance and the energy value basic parameter of answer signal;
In step c, determine that the performance of electronic tag includes:
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is higher than energy value basic parameter higher than success rate basic parameter, the energy value of answer signal, it is determined that the performance of RFID is normal；
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is higher than success rate basic parameter, the energy value of answer signal is less than energy value basic parameter, the performance then determining RFID is normal, but answer signal is by external interference;
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is less than success rate basic parameter, the energy value of answer signal is higher than energy value basic parameter, the performance then determining RFID is normal, but activation signal is by external interference;
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S less than energy value basic parameter, then adjusts the distance of test point and tested radio-frequency card less than success rate basic parameter, the energy value of answer signal, returns step a and continues to test.
The method testing RFID performance the most according to claim 1; it is characterized in that: step C4 farther includes: when the successful receiving rate of the answer signal that the comparative result in step b is current distance S is less than success rate basic parameter; the energy value of answer signal is less than energy value basic parameter; in the distance adjusting test point and tested electronic tag; return when step a continues test and the number of times returning step a is added up; when the number of times returning step a is added to preset value N, it is determined that the performance of RFID is abnormal or damages.
3. the device testing RFID performance, it is characterised in that: including:
Radiofrequency signal Transmit-Receive Unit, for sending activation signal to tested RFID and being received the answer signal of RFID；
Central processing module, for receiving the answer signal of radiofrequency signal Transmit-Receive Unit output and being received the successful receiving rate of answer signal and energy value calculates, and compare according to success rate basic parameter and the energy value basic parameter of result of calculation with preset answer signal and export comparative result；
Described central processing module includes:
Success rate computing unit, electrically connects with described radiofrequency signal Transmit-Receive Unit, for calculating the success rate receiving answer signal and exporting；
Answer signal energy value measuring unit, electrically connects, for calculating the energy value of answer signal and exporting with described radiofrequency signal transmitting-receiving power supply；
Central processing unit, with success rate basic parameter and the energy value basic parameter that described success rate computing unit and answer signal energy value test cell electrically connected and preset answer signal, for the energy value of the successful receiving rate and answer signal that receive answer signal and compare with preset success rate basic parameter and energy value basic parameter, and export comparative result；
Wherein, the comparative result of output is:
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is higher than energy value basic parameter higher than success rate basic parameter, the energy value of answer signal, it is determined that the performance of RFID is normal；
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is higher than success rate basic parameter, the energy value of answer signal is less than energy value basic parameter, the performance then determining RFID is normal, but answer signal is by external interference;
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S is less than success rate basic parameter, the energy value of answer signal is higher than energy value basic parameter, the performance then determining RFID is normal, but activation signal is by external interference;
Comparative result the most in stepb is that the successful receiving rate of the answer signal of current distance S less than energy value basic parameter, then adjusts the distance of test point and tested radio-frequency card less than success rate basic parameter, the energy value of answer signal, returns step a and continues to test.
Test the device of RFID performance the most according to claim 3, it is characterized in that: described central processing module also include the electrical connection with described central processing unit for the enumerator that counts of number of times returning step a, when enumerator is added to more than or equal to preset value N, accumulator resets and exports reset signal to CPU.
Test the device of RFID performance the most according to claim 4, it is characterized in that: also include the electrical connection of the range sensor for measuring current measuring distance S, described range sensor and described central processing unit and export distance signal to central processing unit.
Test the device of RFID performance the most according to claim 5, it is characterised in that: also include the display unit electrically connected with described central processing unit, for the parameter of test RFID performance is shown.
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| JP6834169B2 (en) * | 2016-04-28 | 2021-02-24 | オムロン株式会社 | Communication equipment, systems, methods and programs with communication equipment |
| CN106529359A (en) * | 2016-10-24 | 2017-03-22 | 深圳市海云天科技股份有限公司 | Radio frequency identification label quality detection method and device |
| CN109325377A (en) * | 2018-01-17 | 2019-02-12 | 深圳市君谊科技有限公司 | A kind of reaction type determination method of RFID read-write system stability |
| CN108304743B (en) * | 2018-01-26 | 2021-03-19 | 山东大学 | Test system and method for quantitatively evaluating protocol consistency of RFID (radio frequency identification) label |
| CN108932781B (en) * | 2018-07-26 | 2021-06-11 | 天津中兴智联科技有限公司 | RSSI threshold value self-learning method in access control management scene |
| CN110906979B (en) * | 2019-11-08 | 2021-08-17 | 杭州智控网络有限公司 | Price tag production inspection batch test method and system thereof |
| CN111611819B (en) * | 2020-05-26 | 2023-10-31 | 成都睿畜电子科技有限公司 | Antenna self-checking method for UHF group scanning and checking system |
| CN113715758B (en) * | 2021-09-02 | 2024-04-16 | 潍柴动力股份有限公司 | Wire harness fault detection method, device and system |
| CN116933814A (en) * | 2023-09-12 | 2023-10-24 | 深圳市小金象科技有限公司 | Intelligent electronic tag system for Internet of things |
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