CN104036210B - Test method of identifying multi-tag performance by UHF reader - Google Patents
Test method of identifying multi-tag performance by UHF reader Download PDFInfo
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- CN104036210B CN104036210B CN201410227926.4A CN201410227926A CN104036210B CN 104036210 B CN104036210 B CN 104036210B CN 201410227926 A CN201410227926 A CN 201410227926A CN 104036210 B CN104036210 B CN 104036210B
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Abstract
The invention discloses a test method of identifying multi-label performance by an UHF reader. The test method includes that slot values correspond to simulation labels, the data contents of each label need not to be stored in a memory space, each label need not meet the protocol state handling of the national military standard, so that resource consumption such as the memory space is greatly saved, and the label number depends on the size of memory space of the slot values, while a slot value of each label only occupies 15 bits space of the memory, so that hundreds of or up to thousands of simulation labels may be generated. The identifying multi-label performance of the reader is tested conveniently and flexibly.
Description
Technical field
The invention belongs to RF identification (Radio Frequency Identification, RFID) technology, and in particular to
One kind meets the method that the ultrahigh frequency readers of national military standard (GJB7377.1-2011) agreement are tested multi-tag recognition performance.
Background technology
With the extensive application of REID, in the urgent need to read write line, efficiently quickly identification is big in finite time
Amount label, when there is multiple labels to be identified in read write line sphere of action, read write line can receive the mark of aliasing and interference
Answer signal is signed, causes read write line to be identified to any one label, that is, produce collision.In RFID system, solve
The algorithm of tag-collision problem is referred to as label anti-collision algorithm, and the quality of the algorithm performance directly affects reader to multi-tag
Recognition capability.In test of the reader to multi-tag recognition capability, first method is the analogue simulation of anti-collision algorithm, should
Method can analyze the theoretical performance index of anticollision, but in specific reader is to the test of multi-tag recognition capability, it is impossible to
Intuitively, the good and bad and problem in actual reflection reader anticollision handling process is located；Second method is by real more
Individual label builds test platform, but builds the harsh requirement of comparison to test platform when number of labels to be measured is very big.
The content of the invention
For the problems referred to above that prior art is present, the present invention proposes a kind of ultrahigh frequency readers to multi-tag identity
Can method of testing.
The technical scheme is that：A kind of ultrahigh frequency readers are specifically included to multi-tag recognition performance method of testing
Following steps：
S1. initial configuration：Configuration simulation label number, simulation label take inventory mark and will be every in slot values memory
The slot values of individual label are set to 0；
S2. reader command parsing：According to the life that command code parsing reader in ultrahigh frequency readers agreement is sent
Make type, command parameter；
Whether mark of S3. making an inventory matches：The mark of making an inventory of each label in mark memory of making an inventory is ordered with inquiry is started
Target data are matched in order, and the operation of step S4 is carried out if equal, otherwise return to step S2；
S4. corresponding time slot value is generated according to reader command：According to different reader command types, tag analog device is produced
The corresponding slot values of life；
S5. slot values write slot values memory, and the counting by slot values equal to 0：The time slot that will be produced in step S4
In value write label slot values memory, while judging the number that slot values are zero；
S6. sending has collisionless handle to respond：If the number that the slot values produced in S5 are zero is 1, label
Simulator sends collisionless handle response；If the number that slot values are zero is not equal to 1, tag analog device sends collision
Handle response, and return to step S2 after the response is sent completely；
S7.ACK command analysis：According to command code parsing ACK orders in ultrahigh frequency readers agreement；
S8.T1 time-out then sends coding response：Tag analog device is resolved to the ACK orders of reader transmission and starts timing,
Coding response is then sent during timing completely T1, wherein, T1 is threshold value set in advance；
S9. coding response inverts the mark of making an inventory of tag analog device after being sent：Reversion identified label is made an inventory mark
Remember, and the mark value write that will make an inventory is made an inventory in mark memory, and after coding response is sent S2 is returned to.
Beneficial effects of the present invention：The method of the present invention is for meeting the ultrahigh frequency readers of national military standard agreement to multi-tag
The test of recognition capability, can according to the configuration of number of tags can convenience and high-efficiency generation more than 100 simulation label, simulate
The flexible number of label can configure, and the response of simulation label meets national military standard protocol requirement.Really mark compared to building more
Signing test platform does not have strict requirements, and has the advantages that easy, flexibility, is a kind of simple and effective, and is hyperfrequency
Reader multi-tag distinguishes the important supplement method of aptitude tests
Description of the drawings
Fig. 1 is the ultrahigh frequency readers of the present invention to multi-tag recognition performance method of testing schematic flow sheet.
Specific embodiment
Below in conjunction with the accompanying drawings the method for the present invention is further described with specific embodiment.
The concrete thought of the inventive method is：According to number of tags initialization of register slot values memory, mark of making an inventory
Memory；The command type that parsing reader is sent, reads the mark of making an inventory of each label in making an inventory mark memory from reading
Note, and matched with the mark of making an inventory that reader is sent；If it does, then producing time slot according to corresponding reader command
Value, and slot values are write in slot values memory, while judge the number that slot values are zero, if slot values are zero number
Equal to 1, then collisionless label handle response command is sent, record the address of the slot values, and the value after adding 1 by the address is made
To treat the coded data of responsive tags；If the number that slot values are zero is not equal to 1, transmission has the label handle response of collision
Order.After label receives ACK orders, and while meet that handle is correct and T1 is overtime, then transmission label coding response command, treats
After coding response command is sent, the mark value of making an inventory of corresponding label in mark memory of making an inventory is inverted, return to parsing and read
The step of reading device transmission command type.
Method of the present invention thinking slot values correspond to into simulation label, and the data of each label need not be deposited in memory space
Content, and each label need not individually meet the protocol status process of national military standard, greatly save the money such as memory space
The consumption in source, the size of number of tags directly depends on the size of slot values storage space, and a label slot count value
The space of memory 15 is only taken up, therefore generation hundred at most thousands of simulation labels at least can be simulated.Can be convenient, flexible
Test recognition capability of the reader to multi-tag.
First below the term to wherein using makees an explanation：
Slot values memory：According to the configuration of number of tags, the slot values of respective number are stored, each slot values takes 15
The memory space of position, the coded data of one simulation label of cyclic address change correspondence of each slot values.When tag analog device is received
After the order sent to reader, tag analog device writes the slot values produced by different command according to the order of write-after-read
In slot values memory.
Make an inventory mark memory：Tag analog device is received after reader command, is first read from mark memory of making an inventory
The mark of making an inventory of each label, is matched, for selecting with the Target data fields in querying command that start that reader sends
Selecting needs the label of response.After tag analog device has sent coding response, then by the corresponding mark reversion of making an inventory of certain label
And write is made an inventory mark memory.
Label coding memory：When the number that slot values are zero is equal to 1, the address of the slot values is added 1 as label
Coded data writes label coding memory.When ACK order is sent, by the data in label coding memory according to phase
The coded format coding output answered.
Below in conjunction with the accompanying drawings the invention will be further described with specific embodiment.
As shown in figure 1, ultrahigh frequency readers of the present invention are embodied as to multi-tag recognition performance method of testing
Scheme is as follows：
S1. initial configuration：Configuration simulation number of tags register is M,
Initialization simulation label takes inventory mark, i.e. M is taken inventory into mark puts the writes of 1bit zero and takes inventory and marks memory block；
Initialization slot values, i.e. each is put 15bit zero and writes slot values memory by M slot values.
S2. reader command parsing：The order related to anticollision process of hyperfrequency national military standard agreement regulation includes opening
Dynamic querying command (10100100b), repetition querying command (00b), division order (11b), dispersion order (1000b), contraction life
Make (1001b), tag analog device parses mentioned order type by TPP；
Whether mark of S3. making an inventory matches：The mark of making an inventory of each label in mark memory of making an inventory is ordered with inquiry is started
Target data fields are matched in order, and the operation of step S4 is carried out if equal, otherwise return to step S2；
S4. corresponding time slot value is generated according to reader command：
Tag analog device is resolved to after startup querying command, and M slot values are put into 15bit zero；
Tag analog device is resolved to after repetition querying command, if the slot values in slot values memory are 0, by time slot
Value puts 7FFF, if slot values are not 0, slot values subtract 1；
After tag analog device is resolved to division position for the division order of 00b, if the slot values in slot values memory
For 0, then 1 random number is generated, by random number write slot values；If slot values are not 0, slot values are added 1；
After tag analog device is resolved to division position for the division order of 01b, if the slot values in slot values memory
For 1, then 1 random number is generated, by random number write slot values；If slot values are not 1, slot values keep constant；
Tag analog device is resolved to after dispersion order, generates 1 random number, and slot values are multiplied by 2 along with the random number；
Tag analog device is resolved to after contraction order, and slot values are divided by 2；
S5. the slot values write slot values memory after mentioned order is changed, and slot values are equal to into 0 counting：Together
When judge number that slot values are zero；
S6. sending has collisionless handle to respond：If the number that the slot values produced in S5 are zero is 1, label
Simulator sends collisionless handle response, and the address of the slot values is deposited, and jumps to S7 and waits reader transmission coding to obtain
Take order (ACK)；If the number that slot values are zero is not equal to 1, tag analog device sends the handle for having collision and responds, and
The response returns to S2 after being sent completely；
S7. coding obtains order (ACK) parsing：Solve according to command code (01b) in national military standard ultrahigh frequency readers agreement
Analysis ACK orders；
S8.T1 time-out then sends coding response：Tag analog device is resolved to the ACK orders of reader transmission and handle is effective
Then start timing, during timing completely T1 coding response is then sent；
S9. coding response inverts the mark of making an inventory of tag analog device after being sent：Reversion identified label is made an inventory mark
Remember, and the mark value write that will make an inventory is made an inventory in mark memory, and after coding response is sent step S2 is returned to.
As can be seen that when test is based on the ultrahigh frequency reader-writer multi-tag recognition performance of national military standard agreement, the present invention is real
The method for applying example offer compares current existing method and has simpler and more direct, efficient advantage.
Claims (1)
1. a kind of ultrahigh frequency readers specifically include following steps to multi-tag recognition performance method of testing：
S1. initial configuration：Configuration simulation label number, simulation label take inventory mark and by slot values memory each mark
The slot values of label are set to 0；
Specially：
Configuration simulation number of tags register is M,
Initialization simulation label takes inventory mark, i.e. M is taken inventory into mark puts the writes of 1bit zero and takes inventory and marks memory block；
Initialization slot values, i.e. each is put 15bit zero and writes slot values memory by M slot values；
S2. reader command parsing：According to the order class that command code parsing reader in ultrahigh frequency readers agreement is sent
Type, command parameter；
Described command type specifically includes startup querying command, repeats querying command, division order, disperse order, shrink life
Order；
Whether mark of S3. making an inventory matches：Making an inventory for each label in mark memory of making an inventory is marked and started in querying command
Target data are matched, and the operation of step S4 is carried out if equal, otherwise return to step S2；
S4. corresponding time slot value is generated according to reader command：According to different reader command types, tag analog device produce with
Corresponding slot values；
Step S4 generates corresponding time slot value and is specially according to reader command：
Tag analog device is resolved to after startup querying command, and M slot values are put into 15bit zero；
Tag analog device is resolved to after repetition querying command, if the slot values in slot values memory are 0, slot values is put
7FFF, if slot values are not 0, slot values subtract 1；
After tag analog device is resolved to division position for the division order of 00b, if the slot values in slot values memory are 0,
1 random number is then generated, by the random number write slot values；If slot values are not 0, slot values are added 1；
After tag analog device is resolved to division position for the division order of 01b, if the slot values in slot values memory are 1,
1 random number is then generated, by the random number write slot values；If slot values are not 1, slot values keep constant；
Tag analog device is resolved to after dispersion order, generates 1 random number, and slot values are multiplied by 2 along with the random number；
Tag analog device is resolved to after contraction order, and slot values are divided by 2；
S5. slot values write slot values memory, and the counting by slot values equal to 0：The slot values produced in step S4 are write
In entering label slot values memory, while judging the number that slot values are zero；
S6. sending has collisionless handle to respond：If the number that the slot values produced in S5 are zero is 1, tag analog
Device sends collisionless handle response；If the number that slot values are zero is not equal to 1, tag analog device sends the sentence for having collision
Handle is responded, and returns to step S2 after the response is sent completely；
S7.ACK command analysis：According to command code parsing ACK orders in ultrahigh frequency readers agreement；
S8.T1 time-out then sends coding response：Tag analog device is resolved to the ACK orders of reader transmission and starts timing, timing
Coding response is then sent during full T1, wherein, T1 is threshold value set in advance；
S9. coding response inverts the mark of making an inventory of tag analog device after being sent：Reversion identified label is made an inventory mark, and
The mark value that will make an inventory write is made an inventory in mark memory, and after coding response is sent step S2 is returned to.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3333755B1 (en) * | 2016-12-12 | 2019-10-30 | EM Microelectronic-Marin SA | Method for providing identification and access with respect to a radio-frequency tag |
| CN112232098B (en) * | 2020-10-15 | 2022-02-18 | 中国电子科技集团公司第五十四研究所 | Ultra-low power consumption digital baseband system based on ultrahigh frequency RFID (radio frequency identification) tag chip |
| CN113191476B (en) * | 2021-05-28 | 2022-06-21 | 中国人民解放军国防科技大学 | Multi-electronic-tag anti-collision method and system for passive radio frequency identification |
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| CN101676928A (en) * | 2008-09-16 | 2010-03-24 | 华为技术有限公司 | Method, device and system for radio frequency identification |
| CN101739536A (en) * | 2008-11-26 | 2010-06-16 | 西门子公司 | Method for reading and writing tags in radio-frequency recognition system and reader-writer |
| CN102542231A (en) * | 2012-01-19 | 2012-07-04 | 深圳市科陆电子科技股份有限公司 | Anti-collision method for super-high frequency reader-writer dedicated for electricity intelligent meter |
| CN102819720A (en) * | 2012-07-04 | 2012-12-12 | 北京中电华大电子设计有限责任公司 | Method for truncating returned EPC (Electronic Product Code) through radio frequency identification system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676928A (en) * | 2008-09-16 | 2010-03-24 | 华为技术有限公司 | Method, device and system for radio frequency identification |
| CN101739536A (en) * | 2008-11-26 | 2010-06-16 | 西门子公司 | Method for reading and writing tags in radio-frequency recognition system and reader-writer |
| CN102542231A (en) * | 2012-01-19 | 2012-07-04 | 深圳市科陆电子科技股份有限公司 | Anti-collision method for super-high frequency reader-writer dedicated for electricity intelligent meter |
| CN102819720A (en) * | 2012-07-04 | 2012-12-12 | 北京中电华大电子设计有限责任公司 | Method for truncating returned EPC (Electronic Product Code) through radio frequency identification system |
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