CN110458257A - Label checking method and device based on RFID system - Google Patents
Label checking method and device based on RFID system Download PDFInfo
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- CN110458257A CN110458257A CN201910630463.9A CN201910630463A CN110458257A CN 110458257 A CN110458257 A CN 110458257A CN 201910630463 A CN201910630463 A CN 201910630463A CN 110458257 A CN110458257 A CN 110458257A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of label checking method and device based on RFID system is made an inventory label according to rule is made an inventory by least two external antenna this method comprises: after detecting and making an inventory instruction；Information of making an inventory based on the label made an inventory generates this and makes an inventory as a result, the information of making an inventory of each label includes tag identifier, antenna mark, frequency, power, RSSI value and makes an inventory the time；The tag identifier and the preceding tag identifier that result includes of once making an inventory for including based on this result of making an inventory determine doubtful missing tag identifier；It makes an inventory from history and obtains the corresponding selected information of making an inventory of doubtful missing tag identifier in result and this result of making an inventory；Corresponding external antenna is identified by the antenna for including in selected information of making an inventory be based on selected information of making an inventory and make an inventory again label, determine whether the corresponding label of doubtful missing tag identifier lacks according to result of making an inventory again.The program can avoid the drain cap of label as far as possible, substantially increase the accuracy rate that label is made an inventory.
Description
Technical field
The present invention relates to fields of communication technology, espespecially a kind of to be based on radio frequency identification (Radio Frequency
Identification, RFID) system label checking method and device.
Background technique
RFID is a kind of communication technology for identifying specific objective by radio signals and read and write related data.RFID is utilized
The electromagnetic wave radio frequency of radio communication carrys out automatic identification individual, without establishing mechanical or light between identifying system and specific objective
Contact is learned, is a kind of contactless automatic identification technology.
As shown in Figure 1, RFID system is made of three piths, it is label, reader and external antenna respectively.Its
In, label is made of coupling element and chip, containing built-in antenna, is used to be communicated between external antenna；Reader is used for
Read the information of label；External antenna between label and reader for transmitting radiofrequency signal.Basic functional principle is: reading
Device sends the radiofrequency signal of certain frequency by external antenna, generates induced electricity when label enters the working region of external antenna
Stream, is activated thus to obtain energy；The information such as itself coding are carried and are sent out in radiofrequency signal by built-in antenna by label
It goes；External antenna is transmitted to reader after receiving the radiofrequency signal that label is sent；Reader to the radiofrequency signal received into
Row demodulation and decoding is subsequently sent to server and carries out relevant treatment.
Currently, the application range of RFID system is very wide, such as unmanned intelligence retail counter, unmanned smart supermarket, market
Storehouse, the storehouse of hospital, books supermarket etc., either which kind of application scenarios, be required to the label in RFID system into
Row is made an inventory, by comparing this make an inventory result and it is preceding once make an inventory as a result, label to determine missing, so that it is determined that the label pair
The article answered is removed.Due to factors such as the environment of RFID system application scenarios, laying for goods, label itself sensitivity, can go out
The drain cap of existing label, greatly reduces the accuracy rate that label is made an inventory.
Summary of the invention
The embodiment of the present invention provides a kind of label checking method and device based on RFID system, to solve the prior art
Present in the problem of drain cap of label occur, greatly reducing the accuracy rate that label is made an inventory.
According to embodiments of the present invention, a kind of label checking method based on RFID system is provided, the RFID system is applied to
In the reader that system includes, the RFID system further includes at least two external antennas and at least two labels, which is characterized in that
The described method includes:
It detects after making an inventory instruction, is made an inventory label according to rule is made an inventory by least two external antenna；
Information of making an inventory based on the label made an inventory generates this and makes an inventory as a result, the information of making an inventory of each label includes label
Mark, antenna mark, frequency, power receive signal designation intensity RSSI value and make an inventory the time；
The tag identifier and the preceding tag identifier that result includes of once making an inventory for including based on this described result of making an inventory determine
Doubtful missing tag identifier；
Result is made an inventory from history and described this makes an inventory that obtain the doubtful missing tag identifier in result corresponding selected
It makes an inventory information；
Corresponding external antenna, which is identified, by the antenna for including in the selected information of making an inventory is based on the selected letter of making an inventory
Label of making an inventory again is ceased, determines whether the corresponding label of the doubtful missing tag identifier lacks according to result of making an inventory again.
It makes an inventory specifically, the information of making an inventory based on the label made an inventory generates this as a result, specifically including:
Record the information of making an inventory for each label that at least two external antenna is made an inventory, result of initially being made an inventory；
The information of making an inventory of the repetition label of time rearward of making an inventory recorded in the result of initially making an inventory is located again out
Reason, obtains this result of making an inventory.
Specifically, the label mark for including with preceding result of once making an inventory based on the tag identifier that this described result of making an inventory includes
Know and determine doubtful missing tag identifier, specifically includes:
The tag identifier that this described result of making an inventory includes is compared with the preceding tag identifier that result includes of once making an inventory
Compared with；
Find out this described result of making an inventory tag identifier not to be covered and it is described before once make an inventory the label mark that result includes
Know, obtains doubtful missing tag identifier.
Specifically, making an inventory result from history and described this makes an inventory that obtain the doubtful missing tag identifier in result corresponding
Selected information of making an inventory, specifically include:
It makes an inventory from history and obtains the corresponding optimal letter of making an inventory of greatest rssi value of the doubtful missing tag identifier in result
Breath and the corresponding newest information of making an inventory of the doubtful missing tag identifier, obtain selecting information of making an inventory.
Specifically, identifying corresponding external antenna by the antenna for including in the selected information of making an inventory is based on described select
Information of making an inventory is made an inventory label again, determines whether the corresponding label of the doubtful missing tag identifier lacks according to result of making an inventory again
It loses, specifically includes:
Corresponding external antenna is identified in the optimal information of making an inventory by the antenna for including in the optimal information of making an inventory
Including frequency and power under make an inventory label；
If identifying corresponding external antenna in the optimal letter of making an inventory by the antenna for including in the optimal information of making an inventory
It is made an inventory under frequency and power that breath includes to the doubtful missing tag identifier, it is determined that the doubtful missing tag identifier is corresponding
Label do not lack；
If identifying corresponding external antenna in the optimal letter of making an inventory by the antenna for including in the optimal information of making an inventory
It is not made an inventory under frequency and power that breath includes to the doubtful missing tag identifier, then by including in the newest information of making an inventory
Antenna identify corresponding external antenna and make an inventory under the frequency and power that the newest information of making an inventory includes label；If passing through institute
It states the antenna for including in newest information of making an inventory and identifies the frequency and function that corresponding external antenna includes in the newest information of making an inventory
It is not made an inventory under rate to the doubtful missing tag identifier, it is determined that the corresponding tag misses of the doubtful missing tag identifier.
Optionally, the rule of making an inventory includes each external antenna corresponding first at least two external antenna
The selected frequency for setting number, the method also includes:
After detecting frequency calibration instruction, by least two external antenna in selected power and the second setting number
Frequency under successively make an inventory label；
Count the number of labels made an inventory at each frequency by least two external antenna；
The ranking for the number of labels that each external antenna at least two external antenna is made an inventory is located at described
Frequency before first setting number is determined as the selected frequency of corresponding external antenna.
According to embodiments of the present invention, it also provides a kind of label based on RFID system to make an inventory device, is applied to the RFID
In the reader that system includes, the RFID system further includes at least two external antennas and at least two labels, described device
Include:
It makes an inventory module, for after detecting and making an inventory instruction, according to making an inventory, rule to pass through at least two external antennas disk
Point label；
Generation module, for the information of making an inventory based on the label made an inventory generate this make an inventory as a result, each label disk
Point information includes tag identifier, antenna mark, frequency, power, receives signal designation intensity RSSI value and make an inventory the time；
First determining module, tag identifier and preceding result packet of once making an inventory for including based on this described result of making an inventory
The tag identifier included determines doubtful missing tag identifier；
Module is obtained, for making an inventory result from history and described this is made an inventory and obtain the doubtful missing label mark in result
Know corresponding selected information of making an inventory；
Second determining module identifies corresponding external antenna base for the antenna by including in the selected information of making an inventory
It makes an inventory again label in the selected information of making an inventory, determines that the doubtful missing tag identifier is corresponding according to result of making an inventory again
Whether label lacks.
Specifically, the generation module, generates this for the information of making an inventory based on the label made an inventory and makes an inventory as a result, having
Body is used for:
Record the information of making an inventory for each label that at least two external antenna is made an inventory, result of initially being made an inventory；
The information of making an inventory of the repetition label of time rearward of making an inventory recorded in the result of initially making an inventory is located again out
Reason, obtains this result of making an inventory.
Specifically, first determining module, tag identifier for including based on this described result of making an inventory with it is previous
The tag identifier that secondary result of making an inventory includes determines doubtful missing tag identifier, is specifically used for:
The tag identifier that this described result of making an inventory includes is compared with the preceding tag identifier that result includes of once making an inventory
Compared with；
Find out this described result of making an inventory tag identifier not to be covered and it is described before once make an inventory the label mark that result includes
Know, obtains doubtful missing tag identifier.
Specifically, the acquisition module, for making an inventory result from history and described this is made an inventory and obtain described doubt in result
Like the corresponding selected information of making an inventory of missing tag identifier, it is specifically used for:
It makes an inventory from history and obtains the corresponding optimal letter of making an inventory of greatest rssi value of the doubtful missing tag identifier in result
Breath and the corresponding newest information of making an inventory of the doubtful missing tag identifier, obtain selecting information of making an inventory.
Specifically, second determining module, corresponds to for the antenna mark by including in the selected information of making an inventory
External antenna be based on the selected information of making an inventory and make an inventory again label, the doubtful missing mark is determined according to result of making an inventory again
Label identify whether corresponding label lacks, and are specifically used for:
Corresponding external antenna is identified in the optimal information of making an inventory by the antenna for including in the optimal information of making an inventory
Including frequency and power under make an inventory label；
If identifying corresponding external antenna in the optimal letter of making an inventory by the antenna for including in the optimal information of making an inventory
It is made an inventory under frequency and power that breath includes to the doubtful missing tag identifier, it is determined that the doubtful missing tag identifier is corresponding
Label do not lack；
If identifying corresponding external antenna in the optimal letter of making an inventory by the antenna for including in the optimal information of making an inventory
It is not made an inventory under frequency and power that breath includes to the doubtful missing tag identifier, then by including in the newest information of making an inventory
Antenna identify corresponding external antenna and make an inventory under the frequency and power that the newest information of making an inventory includes label；If passing through institute
It states the antenna for including in newest information of making an inventory and identifies the frequency and function that corresponding external antenna includes in the newest information of making an inventory
It is not made an inventory under rate to the doubtful missing tag identifier, it is determined that the corresponding tag misses of the doubtful missing tag identifier.
Optionally, the rule of making an inventory includes each external antenna corresponding first at least two external antenna
The selected frequency of number is set, described device further includes statistical module and third determining module, in which:
The module of making an inventory is being selected after being also used to detect frequency calibration instruction by least two external antenna
Determine label of successively making an inventory under the frequency of power and the second setting number；
The statistical module, for counting the label for passing through at least two external antenna and making an inventory at each frequency
Quantity；
The third determining module, the mark for each external antenna at least two external antenna to be made an inventory
Frequency of the ranking of label quantity before the first setting number is determined as the selected frequency of corresponding external antenna.
The present invention has the beneficial effect that:
The embodiment of the present invention provides a kind of label checking method and device based on RFID system, by detecting finger of making an inventory
After order, made an inventory label according to rule is made an inventory by least two external antenna；Information of making an inventory based on the label made an inventory
Generate this make an inventory as a result, the information of making an inventory of each label include tag identifier, antenna mark, frequency, power, receive signal refer to
Show intensity RSSI value and makes an inventory the time；The tag identifier for including based on this described result of making an inventory includes with preceding result of once making an inventory
Tag identifier determine doubtful missing tag identifier；Make an inventory result from history and described this make an inventory obtain in result it is described doubtful
The corresponding selected information of making an inventory of missing tag identifier；It is identified by the antenna for including in the selected information of making an inventory corresponding external
Antenna is based on the selected information of making an inventory and makes an inventory label, determines the corresponding mark of the doubtful missing tag identifier according to result of making an inventory
Whether label lack.In the program, is made an inventory after label, will not be directly determined out by least two external antennas according to rule is made an inventory
The label of missing, but doubtful missing tag identifier can be determined first, then further determine doubtful missing tag identifier
Corresponding selected information of making an inventory, and a secondary label is carried out based on the selected information of making an inventory determined again and is made an inventory, final basis is made an inventory
As a result it determines whether the corresponding label of doubtful missing tag identifier lacks, makes an inventory by the label of at least two-wheeled so as to as far as possible
The drain cap for avoiding label substantially increases the accuracy rate that label is made an inventory.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of RFID system in the prior art；
Fig. 2 is a kind of flow chart of the label checking method based on RFID system in the embodiment of the present invention；
Fig. 3 is that a kind of label based on RFID system is made an inventory the structural schematic diagram of device in the embodiment of the present invention.
Specific embodiment
There is the drain cap of label for the problem that existing in the prior art, greatly reduce the accuracy rate that label is made an inventory,
The embodiment of the present invention provides a kind of label checking method based on RFID system, includes applied to RFID system as shown in Figure 1
Reader in, RFID system further includes at least two external antennas and at least two labels, wherein the quantity of external antenna and
The quantity of label can be set according to actual needs, and the quantity in Fig. 1 for the quantity of external antenna and label is example
The expression of property.The process of this method is as shown in Fig. 2, execute that steps are as follows:
S21: detecting after making an inventory instruction, is made an inventory label according to rule is made an inventory by least two external antennas.
Instruction of making an inventory can be server sending, issue after can specifically expiring detecting the period of making an inventory, can also
It is issued after article is reduced with detecting, can also be and issued after detecting addition article, according to practical application from scene
Difference no longer repeats one by one here there are also that can issue instruction of making an inventory in many cases.
Rule of making an inventory can be set according to actual needs, for example, it is assumed that 8 external antennas are shared, every external day
Line has 5 selected power, there is 4 frequencies, and reader indicates No. 0 external antenna with the 1st successively to sending instructions under external antenna
A frequency and the 1st power start to make an inventory, and indicate No. 0 external antenna with the 1st again after receiving the radiofrequency signal of label return
A frequency and the 2nd power start to make an inventory, and indicate No. 0 external antenna with the 1st after receiving the radiofrequency signal of label return
Frequency and the 3rd power start to make an inventory, and indicate No. 0 external antenna with the 1st frequency after receiving the radiofrequency signal of label return
Rate and the 4th power start to make an inventory, and indicate No. 1 external antenna with the 1st frequency after receiving the radiofrequency signal of label return
Start to make an inventory with the 1st power ... ... receive label return radiofrequency signal after indicate No. 7 external antenna with the 1st frequency
Rate and the 4th power start to make an inventory, after the completion of first selected frequency of all external antennas is made an inventory, then to all external
The selected frequency of second of antenna executes the above process, until 5 selected frequencies of all antennas are made an inventory completion.
S22: the information of making an inventory based on the label made an inventory generates this result of making an inventory.
Wherein, the information of making an inventory of each label include tag identifier, antenna mark, frequency, power, receive signal designation it is strong
It spends (Received Signal Strength Indication, RSSI) value and makes an inventory the time.
S23: the tag identifier and the preceding tag identifier that result includes of once making an inventory for including based on this result of making an inventory determine
Doubtful missing tag identifier.
S24: making an inventory from history obtains that doubtful missing tag identifier is corresponding selected to be made an inventory in result and this result of making an inventory
Information.
History is made an inventory preserve in result before several times make an inventory as a result, can be made an inventory according to history result and this make an inventory
As a result it determines that doubtful missing tag identifier is corresponding and obtains selected information of making an inventory.Wherein, history make an inventory the number of result can basis
Actual needs is set, for example, front can be saved 8 times, the result of making an inventory of front 10 times, front 5 times etc..
S25: corresponding external antenna is identified by the antenna for including in selected information of making an inventory and makes an inventory information again based on selected
Secondary label of making an inventory determines whether the corresponding label of doubtful missing tag identifier lacks according to result of making an inventory again.
After determining whether label lacks, subsequent process can be continued according to different application scenarios, for example, at nobody
In intelligence retail counter, usually it will appear tag misses after user buys goods, it at this time can be corresponding according to the label of missing
Item Information generates bill, and user settles accounts according to the bill, to complete purchasing process.
In the program, is made an inventory after label according to rule is made an inventory by least two external antennas, will not directly determine and fall vacant
The label of mistake, but doubtful missing tag identifier can be determined first, then further determine doubtful missing tag identifier pair
The selected information of making an inventory answered, and a secondary label is carried out based on the selected information of making an inventory determined again and is made an inventory, it is final according to knot of making an inventory
Fruit determines whether the corresponding label of doubtful missing tag identifier lacks, and is made an inventory by the label of at least two-wheeled so as to keep away as far as possible
The drain cap for exempting from label substantially increases the accuracy rate that label is made an inventory.
Specifically, the information of making an inventory based on the label made an inventory in above-mentioned S22 generates this and makes an inventory as a result, realizing process
It specifically includes:
Record the information of making an inventory for each label that at least two external antennas are made an inventory, result of initially being made an inventory；
The information of making an inventory of the repetition label of time rearward of making an inventory recorded in result of initially making an inventory is handled again out, is obtained
It makes an inventory to this result.
Due to regular difference of making an inventory, an external antenna may be made an inventory under same frequency, different capacity to same mark
Label, it is accurate and terse in order to ensure result of making an inventory, just need to weigh the duplicate label of progress out at this time, can to it is rear out
Existing repetition label is handled again out, that is, the repetition label occurred after deleting in result of making an inventory, to can obtain
It makes an inventory to this result.
Specifically, the tag identifier for including based on this result of making an inventory in above-mentioned S23 once makes an inventory what result included with preceding
Tag identifier determines doubtful missing tag identifier, and realization process specifically includes:
The tag identifier that this result of making an inventory includes is compared with the preceding tag identifier that result includes of once making an inventory；
It finds out this result of making an inventory tag identifier not to be covered and the preceding tag identifier that result includes of once making an inventory, is doubted
Like missing tag identifier.
The tag identifier that preceding result of once making an inventory includes for this result of making an inventory tag identifier not to be covered, it is possible to
It is the label lacked, therefore, the mark of these labels can be defined as doubtful missing tag identifier.
Doubtful missing tag identifier is obtained in result and this result of making an inventory specifically, the slave history in above-mentioned S24 is made an inventory
Corresponding selected information of making an inventory, realization process specifically include:
Make an inventory from history obtain in result doubtful missing tag identifier greatest rssi value it is corresponding it is optimal make an inventory information and
The corresponding newest information of making an inventory of doubtful missing tag identifier obtains selected information of making an inventory.
Selected information of making an inventory can be, but not limited to include optimal make an inventory information and newest information of making an inventory, can be from the disk of caching
The two information of making an inventory are obtained in point result, then are made an inventory label based on the information of making an inventory.Certainly, there are also a lot of other to determine choosing
The mode of price fixing point information, no longer illustrates one by one here.
Specifically, being based in above-mentioned S25 by the corresponding external antenna of antenna mark for including in selected information of making an inventory
Selected information of making an inventory is made an inventory label again, determines whether the corresponding label of doubtful missing tag identifier lacks according to result of making an inventory again
It loses, realization process specifically includes:
The frequency that corresponding external antenna includes in optimal information of making an inventory is identified by the antenna for including in optimal information of making an inventory
It makes an inventory under rate and power label；
If identifying corresponding external antenna by the antenna for including in optimal information of making an inventory makes an inventory what information included optimal
It is made an inventory under frequency and power to doubtful missing tag identifier, it is determined that the corresponding label of doubtful missing tag identifier does not lack；
If identifying corresponding external antenna by the antenna for including in optimal information of making an inventory makes an inventory what information included optimal
It is not made an inventory under frequency and power to doubtful missing tag identifier, is then identified by the antenna for including in newest information of making an inventory corresponding
External antenna is made an inventory label under the frequency and power that newest information of making an inventory includes；If passing through the day for including in newest information of making an inventory
Line identifies corresponding external antenna and does not make an inventory under the frequency and power that newest information of making an inventory includes to doubtful missing tag identifier,
Then determine the corresponding tag misses of doubtful missing tag identifier.
Since what is saved in optimal information of making an inventory is the doubtful corresponding information of making an inventory of greatest rssi value for lacking tag identifier,
A possibility that information of making an inventory is the optimal information of making an inventory of history, and doubtful missing label is arrived in scanning in the case where this makes an inventory information is maximum,
Therefore, can identify corresponding external antenna in optimal information of making an inventory by the antenna for including in optimal information of making an inventory first includes
Frequency and power under make an inventory label, if not making an inventory to since newest information of making an inventory is the doubting of obtaining in result of making an inventory from history
Like the corresponding newest information of making an inventory of missing tag identifier, in the case where this makes an inventory information scanning arrived doubtful missing label therefore can
Further to identify the frequency that corresponding external antenna includes in newest information of making an inventory by the antenna for including in newest information of making an inventory
Make an inventory under rate and power label, if a label based on it is optimal make an inventory information and it is newest make an inventory information this make an inventory twice when all do not have
Have and is made an inventory to can directly determine the label and lack.
Optionally, above-mentioned rule of making an inventory includes corresponding first setting of each external antenna at least two external antennas
The selected frequency of number, the above method further include:
After detecting frequency calibration instruction, the frequency of number is set in selected power and second by least two external antennas
It successively makes an inventory under rate label；
The number of labels that statistics is made an inventory at each frequency by least two external antennas；
The ranking for the number of labels that each external antenna at least two external antennas is made an inventory is located at the first setting
Frequency before number is determined as the selected frequency of corresponding external antenna.
Since under different application scenarios, the factors such as external environment can change, and therefore, it is necessary to periodically carry out frequency school
Standard can issue automatically frequency calibration instruction, frequency calibration when expiring in the frequency calibration period with setpoint frequency calibration cycle
Period can be set according to actual needs, for example, it can be set to being 24 hours, 48 hours, 29 hours etc.；It can also be by
It is artificial to initiate frequency calibration instruction；It can also be other situations, no longer illustrate one by one here.When detect frequency calibration instruct
Afterwards, frequency calibration can be carried out, determines the selected frequency of each external antenna.Since external antenna would generally support many
Frequency has tens frequencies sometimes, when executing S21-S25, if if these frequencies are all used progress label to make an inventory, consumption
When can be very long, it is a kind of preferred hence, it can be determined that several optimized frequencies use when label is made an inventory of every external antenna out
The ranking for the number of labels that mode can make an inventory each external antenna at least two external antennas is located at the first setting
Frequency before number is determined as the selected frequency of corresponding external antenna.
Based on the same inventive concept, the embodiment of the present invention provides a kind of label based on RFID system and makes an inventory device, the dress
The structure set is as shown in Figure 3, comprising:
Module of making an inventory 31, for being made an inventory according to rule is made an inventory by least two external antennas after detecting and making an inventory instruction
Label；
Generation module 32 generates this for information of making an inventory based on the label made an inventory and makes an inventory as a result, each label
Information of making an inventory includes tag identifier, antenna mark, frequency, power, receives signal designation intensity RSSI value and make an inventory the time；
First determining module 33, the tag identifier for including based on this result of making an inventory include with preceding result of once making an inventory
Tag identifier determine doubtful missing tag identifier；
Module 34 is obtained, to obtain doubtful missing tag identifier in result and this result of making an inventory corresponding for making an inventory from history
Selected information of making an inventory；
Second determining module 35 identifies corresponding external antenna for the antenna by including in selected information of making an inventory and is based on
Selected information of making an inventory is made an inventory label again, determines whether the corresponding label of doubtful missing tag identifier lacks according to result of making an inventory again
It loses.
In the program, is made an inventory after label according to rule is made an inventory by least two external antennas, will not directly determine and fall vacant
The label of mistake, but doubtful missing tag identifier can be determined first, then further determine doubtful missing tag identifier pair
The selected information of making an inventory answered, and a secondary label is carried out based on the selected information of making an inventory determined again and is made an inventory, it is final according to knot of making an inventory
Fruit determines whether the corresponding label of doubtful missing tag identifier lacks, and is made an inventory by the label of at least two-wheeled so as to keep away as far as possible
The drain cap for exempting from label substantially increases the accuracy rate that label is made an inventory.
Specifically, generation module 32, generates this for the information of making an inventory based on the label made an inventory and makes an inventory as a result, specific
For:
Record the information of making an inventory for each label that at least two external antennas are made an inventory, result of initially being made an inventory；
The information of making an inventory of the repetition label of time rearward of making an inventory recorded in result of initially making an inventory is handled again out, is obtained
It makes an inventory to this result.
Specifically, the first determining module 33, the tag identifier for including based on this result of making an inventory once is made an inventory with preceding
As a result the tag identifier for including determines doubtful missing tag identifier, is specifically used for:
The tag identifier that this result of making an inventory includes is compared with the preceding tag identifier that result includes of once making an inventory；
It finds out this result of making an inventory tag identifier not to be covered and the preceding tag identifier that result includes of once making an inventory, is doubted
Like missing tag identifier.
Specifically, obtain module 34, doubtful missing label is obtained in result and this result of making an inventory for making an inventory from history
Corresponding selected information of making an inventory is identified, is specifically used for:
Make an inventory from history obtain in result doubtful missing tag identifier greatest rssi value it is corresponding it is optimal make an inventory information and
Like the corresponding newest information of making an inventory of missing tag identifier, selected information of making an inventory is obtained.
Specifically, the second determining module 35, identifies corresponding external for the antenna by including in selected information of making an inventory
Antenna is based on selected information of making an inventory and makes an inventory again label, determines the corresponding mark of doubtful missing tag identifier according to result of making an inventory again
Whether label lack, and are specifically used for:
The frequency that corresponding external antenna includes in optimal information of making an inventory is identified by the antenna for including in optimal information of making an inventory
It makes an inventory under rate and power label；
If identifying corresponding external antenna by the antenna for including in optimal information of making an inventory makes an inventory what information included optimal
It is made an inventory under frequency and power to doubtful missing tag identifier, it is determined that the corresponding label of doubtful missing tag identifier does not lack；
If identifying corresponding external antenna by the antenna for including in optimal information of making an inventory makes an inventory what information included optimal
It is not made an inventory under frequency and power to doubtful missing tag identifier, is then identified by the antenna for including in newest information of making an inventory corresponding
External antenna is made an inventory label under the frequency and power that newest information of making an inventory includes；If passing through the day for including in newest information of making an inventory
Line identifies corresponding external antenna and does not make an inventory under the frequency and power that newest information of making an inventory includes to doubtful missing tag identifier,
Then determine the corresponding tag misses of doubtful missing tag identifier.
Optionally, rule of making an inventory includes the corresponding first setting number of each external antenna at least two external antennas
Selected frequency, device further includes statistical module and third determining module, in which:
Make an inventory module, after being also used to detect frequency calibration instruction, by least two external antennas selected power with
Second sets label of successively making an inventory under the frequency of number；
Statistical module, for counting the number of labels for passing through at least two external antennas and making an inventory at each frequency；
Third determining module, number of labels for each external antenna at least two external antennas to be made an inventory
Frequency of the ranking before the first setting number is determined as the selected frequency of corresponding external antenna.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although alternative embodiment of the invention has been described, created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So the following claims are intended to be interpreted as include can
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of label checking method based on radio frequency discrimination RFID system, the reader for including applied to the RFID system
In, the RFID system further includes at least two external antennas and at least two labels, which is characterized in that the described method includes:
It detects after making an inventory instruction, is made an inventory label according to rule is made an inventory by least two external antenna；
Information of making an inventory based on the label made an inventory generates this and makes an inventory as a result, the information of making an inventory of each label includes label mark
Knowledge, antenna mark, frequency, power receive signal designation intensity RSSI value and make an inventory the time；
The tag identifier for including based on this described result of making an inventory determines doubtful with the preceding tag identifier that result includes of once making an inventory
Lack tag identifier；
Result is made an inventory from history and described this is made an inventory and obtain that the doubtful missing tag identifier is corresponding selected to be made an inventory in result
Information；
Corresponding external antenna is identified by the antenna for including in the selected information of making an inventory, and information is made an inventory again based on described select
Secondary label of making an inventory determines whether the corresponding label of the doubtful missing tag identifier lacks according to result of making an inventory again.
2. the method as described in claim 1, which is characterized in that the information of making an inventory based on the label made an inventory generates this and makes an inventory
As a result, specifically including:
Record the information of making an inventory for each label that at least two external antenna is made an inventory, result of initially being made an inventory；
The information of making an inventory of the repetition label of time rearward of making an inventory recorded in the result of initially making an inventory is handled again out, is obtained
It makes an inventory to this result.
3. the method as described in claim 1, which is characterized in that the tag identifier for including based on this described result of making an inventory is with before
The tag identifier that result includes of once making an inventory determines doubtful missing tag identifier, specifically includes:
The tag identifier that this described result of making an inventory includes is compared with the preceding tag identifier that result includes of once making an inventory；
Find out this described result of making an inventory tag identifier not to be covered and it is described before once make an inventory the tag identifier that result includes, obtain
To doubtful missing tag identifier.
4. the method as described in claim 1, which is characterized in that make an inventory result from history and described this is made an inventory and obtained in result
The corresponding selected information of making an inventory of the doubtful missing tag identifier, specifically includes:
Make an inventory from history obtain in result the doubtful missing tag identifier greatest rssi value it is corresponding it is optimal make an inventory information and
The corresponding newest information of making an inventory of the doubtful missing tag identifier obtains selected information of making an inventory.
5. method as claimed in claim 4, which is characterized in that pass through the antenna mark pair for including in the selected information of making an inventory
The external antenna answered is based on the selected information of making an inventory and makes an inventory again label, determines the doubtful missing according to result of making an inventory again
Whether the corresponding label of tag identifier lacks, and specifically includes:
Identifying corresponding external antenna in the optimal information of making an inventory by the antenna for including in the optimal information of making an inventory includes
Frequency and power under make an inventory label；
If identifying corresponding external antenna in the optimal packet of making an inventory by the antenna for including in the optimal information of making an inventory
It is made an inventory under the frequency and power that include to the doubtful missing tag identifier, it is determined that the corresponding mark of the doubtful missing tag identifier
Label do not lack；
If identifying corresponding external antenna in the optimal packet of making an inventory by the antenna for including in the optimal information of making an inventory
It is not made an inventory under the frequency and power that include to the doubtful missing tag identifier, then the day by including in the newest information of making an inventory
Line identifies corresponding external antenna and makes an inventory under the frequency and power that the newest information of making an inventory includes label；If described in most
The antenna for including in information of newly making an inventory identifies corresponding external antenna under the frequency and power that the newest information of making an inventory is included
It does not make an inventory to the doubtful missing tag identifier, it is determined that the corresponding tag misses of the doubtful missing tag identifier.
6. method a method as claimed in any one of claims 1 to 5, which is characterized in that the rule of making an inventory includes described at least two external
The selected frequency of the corresponding first setting number of each external antenna in antenna, the method also includes:
After detecting frequency calibration instruction, the frequency of number is set in selected power and second by least two external antenna
It successively makes an inventory under rate label；
Count the number of labels made an inventory at each frequency by least two external antenna；
The ranking for the number of labels that each external antenna at least two external antenna is made an inventory is located at described first
Frequency before setting number is determined as the selected frequency of corresponding external antenna.
The device 7. a kind of label based on RFID system is made an inventory, it is described in the reader for including applied to the RFID system
RFID system further includes at least two external antennas and at least two labels, which is characterized in that described device includes:
It makes an inventory module, for after detecting and making an inventory instruction, is made an inventory mark according to rule is made an inventory by least two external antenna
Label；
Generation module, for the information of making an inventory based on the label made an inventory generate this make an inventory as a result, each label letter of making an inventory
Breath includes tag identifier, antenna mark, frequency, power, receives signal designation intensity RSSI value and make an inventory the time；
First determining module, the tag identifier for including based on this described result of making an inventory once make an inventory what result included with preceding
Tag identifier determines doubtful missing tag identifier；
Module is obtained, for making an inventory result from history and described this is made an inventory and obtain the doubtful missing tag identifier pair in result
The selected information of making an inventory answered；
Second determining module identifies corresponding external antenna for the antenna by including in the selected information of making an inventory and is based on institute
It states selected information of making an inventory to make an inventory again label, the corresponding label of the doubtful missing tag identifier is determined according to result of making an inventory again
Whether lack.
8. device as claimed in claim 7, which is characterized in that the generation module, for the disk based on the label made an inventory
Point information generates this and makes an inventory as a result, being specifically used for:
Record the information of making an inventory for each label that at least two external antenna is made an inventory, result of initially being made an inventory；
The information of making an inventory of the repetition label of time rearward of making an inventory recorded in the result of initially making an inventory is handled again out, is obtained
It makes an inventory to this result.
9. device as claimed in claim 7, which is characterized in that first determining module, for being made an inventory based on described this
As a result the tag identifier and the preceding tag identifier that result includes of once making an inventory for including determine doubtful missing tag identifier, specific to use
In:
The tag identifier that this described result of making an inventory includes is compared with the preceding tag identifier that result includes of once making an inventory；
Find out this described result of making an inventory tag identifier not to be covered and it is described before once make an inventory the tag identifier that result includes, obtain
To doubtful missing tag identifier.
10. device as claimed in claim 7, which is characterized in that the acquisition module, for making an inventory result and described from history
The corresponding selected information of making an inventory of the doubtful missing tag identifier is obtained in this result of making an inventory, and is specifically used for:
Make an inventory from history obtain in result the doubtful missing tag identifier greatest rssi value it is corresponding it is optimal make an inventory information and
The corresponding newest information of making an inventory of the doubtful missing tag identifier obtains selected information of making an inventory.
11. device as claimed in claim 10, which is characterized in that second determining module, for passing through the selected disk
The antenna for including in point information identifies corresponding external antenna and is based on the selected information of making an inventory to be made an inventory label again, according to again
Result of making an inventory determines whether the corresponding label of the doubtful missing tag identifier lacks, and is specifically used for:
Identifying corresponding external antenna in the optimal information of making an inventory by the antenna for including in the optimal information of making an inventory includes
Frequency and power under make an inventory label；
If identifying corresponding external antenna in the optimal packet of making an inventory by the antenna for including in the optimal information of making an inventory
It is made an inventory under the frequency and power that include to the doubtful missing tag identifier, it is determined that the corresponding mark of the doubtful missing tag identifier
Label do not lack；
If identifying corresponding external antenna in the optimal packet of making an inventory by the antenna for including in the optimal information of making an inventory
It is not made an inventory under the frequency and power that include to the doubtful missing tag identifier, then the day by including in the newest information of making an inventory
Line identifies corresponding external antenna and makes an inventory under the frequency and power that the newest information of making an inventory includes label；If described in most
The antenna for including in information of newly making an inventory identifies corresponding external antenna under the frequency and power that the newest information of making an inventory is included
It does not make an inventory to the doubtful missing tag identifier, it is determined that the corresponding tag misses of the doubtful missing tag identifier.
12. the device as described in claim 7-11 is any, which is characterized in that the rule of making an inventory includes outside described at least two
Set the selected frequency of the corresponding first setting number of each external antenna in antenna, described device further includes statistical module and the
Three determining modules, in which:
The module of making an inventory, after being also used to detect frequency calibration instruction, by least two external antenna in selected function
It successively makes an inventory label under the frequency of rate and the second setting number；
The statistical module, for counting the number of tags made an inventory at each frequency by least two external antenna
Amount；
The third determining module, the number of tags for each external antenna at least two external antenna to be made an inventory
Frequency of the ranking of amount before the first setting number is determined as the selected frequency of corresponding external antenna.
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| CN201910630463.9A CN110458257B (en) | 2019-07-12 | 2019-07-12 | Label checking method and device based on RFID system |
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|---|---|---|---|
| CN201910630463.9A CN110458257B (en) | 2019-07-12 | 2019-07-12 | Label checking method and device based on RFID system |
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| CN110458257B CN110458257B (en) | 2022-11-11 |
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| CN111667209A (en) * | 2020-04-20 | 2020-09-15 | 上海术源信息科技有限公司 | RFID-based material data checking and calibrating method and system and storage medium |
| CN111967547A (en) * | 2020-07-06 | 2020-11-20 | 深圳市成为信息技术有限公司 | Multi-label checking method, electronic equipment and storage medium |
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|---|---|
| CN110458257B (en) | 2022-11-11 |
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