CN103616577A - Radio frequency electronic tag consistency detection method - Google Patents
Radio frequency electronic tag consistency detection method Download PDFInfo
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- CN103616577A CN103616577A CN201310534428.XA CN201310534428A CN103616577A CN 103616577 A CN103616577 A CN 103616577A CN 201310534428 A CN201310534428 A CN 201310534428A CN 103616577 A CN103616577 A CN 103616577A
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Abstract
The invention provides a radio frequency electronic tag consistency detection method. The detection method comprises the following steps that: multiple times of repeat test are performed on each electronic tag so as to generate a received signal strength value; sample standard deviations of the received signal strength value is generated according to the received signal strength value, and the sum of the sample standard deviations is calculated; and the consistency of the electronic tag can be judged according to the sum of the sample standard deviations. According to the radio frequency electronic tag consistency detection method of the invention, the received signal strength value of the electronic tag is calculated, and the consistency of the electronic tag is detected, and therefore, the accurate detection of the consistency of the electronic tag can be realized.
Description
Technical field
The invention relates to communication technical field, particularly, is about the conforming detection method of a kind of radio electronic label.
Background technology
Radio-frequency (RF) identification (Radio Frequency Identification, RFID) technology is a kind of noncontact automatic identification technology that utilizes radio communication to realize, have the features such as the identification of high-speed mobile object identification, multiple goal and contactless identification, conventional have technology such as low frequency (125k～134.2K), high frequency (13.56MHz), ultrahigh frequency (900MHz), microwave (2.4GHz and 5.8GHz).RFID technology is widely used in the fields such as logistics, manufacture, communications and transportation, medical treatment, false proof, asset management.
RFID device is comprised of radio electronic label, read write line, emitting antenna and host computer, read write line forms electromagnetic field by emitting antenna at a region emitted energy, radio-frequency (RF) tag detects the data that send storage after the signal of read write line during through this region, the signal that read write line received RF label sends, the accuracy of decoding checking data is to reach the object of identification.Radio electronic label is generally with antenna and integrated circuit, and under external force, integrated circuit can be stored the data that need sign to radio electronic label, also can, under the effect of external force, the data transmission of storage be gone out.The basic function of read write line is just to provide the approach that carries out data transmission with label, and in addition, read write line also provides that the signal condition of very complex is controlled, bad parity verification and orthofunction more etc.In radio electronic label, except storage needs the data of transmission, also must contain certain additional information, as error-checking information etc.Together with data to be identified are organized according to certain structure with additional information, and outwards send according to specific order.Read write line is controlled the transmission of data stream by the additional information receiving.Emitting antenna is transmitting, the receiving trap that transmits data between radio electronic label and read write line.In actual applications, except rating of set, the shape of antenna and relative position also can affect transmitting and receiving of data.
Label consistance is one of radio electronic label most important parameters.At present, adopting RFID technology to carry out in the process of radio electronic label consistency detection, exist the electromagnetic field of antenna transmission accurately to control, cause the accurately conforming problem of detected electrons label.
Summary of the invention
The fundamental purpose of the embodiment of the present invention is to provide a kind of radio electronic label conforming detection method, to solve in prior art the accurately conforming problem of detected electrons label.
To achieve these goals, the embodiment of the present invention provides a kind of radio electronic label conforming detection method, and this detection method comprises: each electronic tag is carried out to repeatedly leapfrog test, generate received signal strength value; According to described received signal strength value, generate the sample standard deviation of described received signal strength value, and calculate sample standard deviation sum; According to described sample standard deviation sum, judge the consistance of described electronic tag.
In one embodiment, above-mentionedly according to described sample standard deviation sum, judge that the conforming step of described electronic tag comprises: the size of the sample standard deviation sum of more different electronic tags, sample standard deviation sum is less, and the degree of consistency is higher.
In one embodiment, the above-mentioned step that generates the sample standard deviation of described received signal strength value according to described received signal strength value comprises: the mean value that calculates described received signal strength value; According to the sample standard deviation described in described mean value calculation.
Further, above-mentioned detection method also comprises: the performance that judges described electronic tag according to described mean value.
Further, above-mentionedly according to described mean value, judge that the step of the performance of described electronic tag comprises: the size of the mean value of more different electronic tags, mean value is larger, and the performance of electronic tag is better.
Further, utilize following formula to calculate above-mentioned mean value:
Wherein, m is leapfrog test number of times, m=1, and 2,3, I is test sample book numbering, i=1, and 2,3 ..., n.
Further, utilize following formula to calculate above-mentioned sample standard deviation:
Wherein, m is leapfrog test number of times, m=1, and 2,3, I is test sample book numbering, i=1, and 2,3 ... n.
Further, utilize following formula to calculate above-mentioned sample standard deviation sum:
Wherein, m is leapfrog test number of times, m=1, and 2,3, K is positive integer.
Beneficial effect of the present invention is: by the present invention, that introduces received signal strength value based on electronic tag calculates and detect conforming method, has realized electronic tag consistance is accurately detected.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is according to the process flow diagram of the conforming detection method of radio electronic label of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of radio electronic label conforming detection method.Below in conjunction with accompanying drawing, the present invention is described in detail.
Fig. 1 is according to the process flow diagram of the conforming detection method of radio electronic label of the embodiment of the present invention, and as shown in Figure 1, this detection method comprises the following steps:
Step 101: each electronic tag is carried out to repeatedly leapfrog test, generate received signal strength value;
Step 102: generate the sample standard deviation of received signal strength value according to received signal strength value, and calculate sample standard deviation sum;
Step 103: according to the consistance of sample standard deviation sum judgement electronic tag.
The detection method that the embodiment of the present invention provides is that electronic tag is repeatedly tested, and obtains its received signal strength value, calculates, and according to result of calculation, detect the conforming process of this electronic tag according to this received signal strength value.By this kind of detection method, reach the object that the consistance of electronic tag is accurately detected.
In embodiments of the present invention, above-mentioned detection method adopts received signal strength indicator (Received Signal Strength Indicator, RSSI) to judge the consistance of label.Received signal strength indicator (Received Signal Strength Indicator, RSSI) refer to the difference of the inter-stages such as real received signal strength and optimum received signal strength, in passive radio frequency identification (RFID) system read-write device, received signal strength indicator mainly refers to the signal intensity of tag reflection signal, and its realization is oppositely being carried out after receiving cable base band receiving filter.
The process of utilizing the detection method of the embodiment of the present invention to detect electronic tag consistance, first to carry out above-mentioned steps 101, it is 1 that a plurality of electronic tags are numbered in order, 2, n, and under test machine is controlled, each electronic tag is carried out to 10 leapfrog tests and (it should be noted that, the number of times of above-mentioned 10 leapfrog tests that carry out is only for illustrating, not in order to limit the present invention, concrete testing time can need to be adjusted accordingly and set according to reality test), be labeled as m=1, 2, 10, thereby obtain the received signal strength value of respectively above-mentioned a plurality of electronic tags to be measured being carried out 10 leapfrog tests.
Above-mentioned steps 102, is that the received signal strength value of the electronic tag to obtaining in step 101 is calculated, and generates the sample standard deviation of the received signal strength value of this electronic tag, and and then calculates the process of sample standard deviation sum.The sample standard deviation δ of received signal strength value
mcan calculate by formula (1):
In above-mentioned formula (1), δ
msample standard deviation for electronic tag received signal strength value to be measured; M is leapfrog test number of times, m=1, and 2,3 ..., 10; I is the numbering of test sample book, i=1, and 2,3 ... n; RSSI
m-1received signal strength value for the electronic tag that obtains by the actual test of test machine; RSSI
m is averagemean value for the received signal strength value of electronic tag to be measured.
Particularly, the mean value RSSI of the received signal strength value of above-mentioned electronic tag to be measured
m is averageto calculate by formula (2):
Wherein, m is leapfrog test number of times, m=1, and 2,3 ..., 10; I is the numbering of test sample book, i=1, and 2,3 ... n.
After calculating the sample standard deviation of received signal strength value of electronic tag to be measured, can pass through the sample standard deviation sum that formula (3) calculates the received signal strength value that obtains electronic tag to be measured:
Due in embodiments of the present invention, be that to carry out 10 leapfrog tests be example, therefore, the value of k gets 10.
After the sample standard deviation sum δ of received signal strength value that obtains electronic tag to be measured through above-mentioned steps 102, can carry out above-mentioned steps 103, according to this sample standard deviation sum δ, detect the consistance of electronic tag to be measured.The sample standard deviation sum δ of the received signal strength value of electronic tag to be measured represents the conforming benchmark results of electronic tag of this batch, utilize this sample standard deviation sum δ to come the conforming specific standards of detected electrons label to be: the size of the sample standard deviation sum δ of the received signal strength value of more a plurality of electronic tags, δ is less for sample standard deviation sum, the conforming degree that represents the electronic tag that this sample standard deviation sum δ is corresponding is better, and the stability of RFID electronic tag is higher.The mean value RSSI of received signal strength value that meanwhile, also can be by above-mentioned electronic tag to be measured
mon average carry out the performance of detected electrons label, utilize the mean value RSSI of this received signal strength value
m is averagecome the specific standards of detected electrons tag performance to be: the mean value RSSI of the received signal strength value by more a plurality of electronic tags
m is averagesize, mean value RSSI
m is averagelarger, represent this mean value RSSI
m is averagethe performance of corresponding electronic tag is better.Below above-mentioned testing process is illustrated: in one-time detection process, the RSSI of one batch of RFID electronic tag A wherein
m is averagetest result be 0.4, conforming benchmark results δ
a=15.81, the RSSI of another batch of RFID label B
m is averagetest result be 0.8, conforming benchmark results δ
b=7.07, can find out the RSSI of electronic tag A
m is averagebe less than the RSSI of electronic tag B
m is average, the sample standard deviation sum δ of the received signal strength value of electronic tag A
abe greater than the sample standard deviation sum δ of the received signal strength value of electronic tag B
b, the examination criteria based on above-mentioned, the conclusion that can access is: the performance of electronic tag B is better than electronic tag A, the degree of consistency of electronic tag B is better than electronic tag A.Therefore, according to the conclusion of said reference test, can be described as: the performance of the Performance Ratio electronic tag A of RFID electronic tag B is good, the degree of consistency of while electronic tag B is higher than the degree of consistency of RFID electronic tag A, so RFID electronic tag B has higher stability.
By above description, can find out, by the conforming detection method of radio electronic label of the present invention, calculating and comparison that signal receiving strength value based on electronic tag is correlated with, can realize electronic tag performance and conforming accurate detection, make relevant staff recognize better working condition and the state of radio electronic label.
One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method can come the hardware that instruction is relevant to complete by program, this program can be stored in a computer read/write memory medium, such as ROM/RAM, magnetic disc, CD etc.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. the conforming detection method of radio electronic label, is characterized in that, described detection method comprises:
Each electronic tag is carried out to repeatedly leapfrog test, generate received signal strength value;
According to described received signal strength value, generate the sample standard deviation of described received signal strength value, and calculate sample standard deviation sum;
According to described sample standard deviation sum, judge the consistance of described electronic tag.
2. the conforming detection method of radio electronic label according to claim 1, it is characterized in that, the described consistance that judges described electronic tag according to described sample standard deviation sum, comprise: the size of the sample standard deviation sum of more different electronic tags, sample standard deviation sum is less, and the degree of consistency is higher.
3. the conforming detection method of radio electronic label according to claim 1, is characterized in that, generates the sample standard deviation of described received signal strength value according to described received signal strength value, comprising:
Calculate the mean value of described received signal strength value;
According to the sample standard deviation described in described mean value calculation.
4. the conforming detection method of radio electronic label according to claim 3, is characterized in that, described detection method also comprises:
According to described mean value, judge the performance of described electronic tag.
5. the conforming detection method of radio electronic label according to claim 4, it is characterized in that, the described performance that judges described electronic tag according to described mean value, comprising: the size of the mean value of more different electronic tags, mean value is larger, and the performance of electronic tag is better.
6. the conforming detection method of radio electronic label according to claim 5, is characterized in that, utilizes following formula to calculate described mean value:
Wherein, m is leapfrog test number of times, m=1, and 2,3, I is test sample book numbering, i=1, and 2,3 ..., n.
7. the conforming detection method of radio electronic label according to claim 6, is characterized in that, utilizes following formula to calculate described sample standard deviation:
Wherein, m is leapfrog test number of times, m=1, and 2,3, I is test sample book numbering, i=1, and 2,3 ... n.
8. the conforming detection method of radio electronic label according to claim 7, is characterized in that, utilizes following formula to calculate described sample standard deviation sum:
Wherein, m is leapfrog test number of times, m=1, and 2,3, K is positive integer.
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| CN104125026A (en) * | 2014-08-04 | 2014-10-29 | 江苏物联网研究发展中心 | Ultrahigh-frequency RFID (radio frequency identification) label protocol conformance testing method |
| CN104951816A (en) * | 2014-03-31 | 2015-09-30 | 普华讯光（北京）科技有限公司 | Electricity metering asset RFID batch intelligent identification device |
| CN108304743A (en) * | 2018-01-26 | 2018-07-20 | 山东大学 | A kind of test system and method for quantitative assessment RFID tag protocol conformance |
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| CN108304743A (en) * | 2018-01-26 | 2018-07-20 | 山东大学 | A kind of test system and method for quantitative assessment RFID tag protocol conformance |
| 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 |
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