CN202584247U - Radio frequency identification system for in and out state identification - Google Patents
Radio frequency identification system for in and out state identification Download PDFInfo
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- CN202584247U CN202584247U CN 201220021614 CN201220021614U CN202584247U CN 202584247 U CN202584247 U CN 202584247U CN 201220021614 CN201220021614 CN 201220021614 CN 201220021614 U CN201220021614 U CN 201220021614U CN 202584247 U CN202584247 U CN 202584247U
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- card reader
- rfid
- rfid card
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- out state
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- 238000012986 modification Methods 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
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Abstract
The utility model provides a radio frequency identification (RFID) system for in and out state identification. The system comprises at least two RFID card readers, a processing unit and a storage unit, wherein the RFID card readers are arranged at an entrance or an exit along a travel path of the entrance or the exit at a certain interval; the processing unit is connected with the RFID card readers; the storage unit is connected with the processing unit through a signal; and the processing unit judges the in and out state of a carrier of an RFID label according to the reading states of the RFID card readers to the same RFID label and history record stored in the storage unit. By the system, the accurate rate for the RFID card readers to identify the in and out state can be improved, and the system can be widely applied to a campus guard system, an intelligent traffic system and a park system.
Description
Technical field
The utility model relates to a kind of radio-frequency recognition system that is applied to pass in and out state recognition.
Background technology
" REID " is RFID (Radio Frequency IDentification) technology; Claim electronic tag, radio frequency identification again; It is a kind of communication technology; Can discern specific objective and read and write related data through radio signals, and need not to set up machinery between recognition system and the specific objective or optics contacts.The RFID technology can be discerned high-speed moving object and can discern a plurality of labels simultaneously, and is swift and convenient to operate.
The element of RFID comprises label (Tag): be made up of coupling element and chip, each label has unique electronic code, attached to identifying destination object on the object; Reader (Reader): read the equipment of (can also write sometimes) label information, can be designed to hand-held or fixed; Antenna (Antenna): between label and reader, transmit radiofrequency signal.
Automatic recognition system is to utilize background computer to handle to judge that the student passes in and out the software and hardware integrated system of school gate state.But because student's singularity reads card number simultaneously with the RFID card reader the objective shortcoming that can't remedy is arranged, so the state that RFID card reader affirmation student passes in and out school gate can't reach very high accuracy always.
The utility model content
The purpose of the utility model is to promote the accuracy that the RFID card reader is confirmed the turnover state.To judge that the student passes in and out the school gate state is example, and the system of the utility model utilizes two RFID card reader separated by a distance to read the entrained radio-frequency identification card of student, utilizes logical relation to judge the student then and whether gets into or leave school fully.In case occur having only a RFID card reader to read the entrained radio-frequency identification card of student, will infer that the student passes in and out the state of school gate according to logical relation and the data query of each time period again.
Particularly, the utility model provides a kind of radio-frequency recognition system that is applied to pass in and out state recognition, comprising:
At least two RFID card reader are arranged at the import or export place, and wherein said at least two RFID card reader are provided with the conduct route of the said import or export in mode edge of each interval one preset distance;
Processing unit connects said at least two RFID card reader; And
Storage unit is connected with said processing unit signal,
Wherein, said processing unit writes down the carrier's who judges this RFID label turnover state according to said at least two RFID card reader to stored historical in the reading state of same RFID label and the said storage unit.
According to a preferred embodiment of the utility model, in above-mentioned radio-frequency recognition system, said preset distance makes and does not receive interference each other between said at least two RFID card reader.
According to a preferred embodiment of the utility model, in above-mentioned radio-frequency recognition system, be connected through the RS-485 interface between said RFID card reader and the said processing unit.
According to a preferred embodiment of the utility model, in above-mentioned radio-frequency recognition system, said at least two RFID card reader comprise one the one RFID card reader and one the 2nd RFID card reader.
A preferred embodiment according to the utility model; In above-mentioned radio-frequency recognition system; When the said first and second RFID card reader in a predetermined amount of time all read same RFID label; Said processing unit judges that whether the time interval of reading this RFID label of the said first and second RFID card reader is smaller or equal to a threshold value; If smaller or equal to the carrier that judges this RFID label would accomplish a subnormal turnover action, if greater than would judge that improper turnover action takes place the carrier of this RFID label.
A preferred embodiment according to the utility model; In above-mentioned radio-frequency recognition system; When having only one to read a RFID label in the said first and second RFID card reader in a predetermined amount of time, improper turnover action takes place in the carrier of said this RFID label of processing unit judgement.
According to a preferred embodiment of the utility model, in above-mentioned radio-frequency recognition system, when the improper turnover of generation was moved, said processing unit write down in said storage unit and the query history record.
According to a preferred embodiment of the utility model, in above-mentioned radio-frequency recognition system, when there was the historical record of improper turnover action in this RFID label that improper turnover action takes place, said processing unit sent warning.
According to the utility model; Can overcome and have only setting automatically of a RFID card reader to judge the problem that the student often makes mistakes when passing in and out the school gate state in the system in the past; And having only a card reader to read under the situation of card number; Utilize some logical relations and data query, make a relative right judgement, judge that to reduce the student passes in and out the error rate of school gate state.
Should be appreciated that the above generality of the utility model is described and following detailed description all is exemplary and illustrative, and be intended to further explanation is provided for as claimed in claim the utility model.
Description of drawings
Accompanying drawing mainly is to be used to provide the utility model is further understood.Accompanying drawing shows the embodiment of the utility model, and plays the effect of explaining the utility model principle with this instructions.In the accompanying drawing:
Fig. 1 schematically shows the structured flowchart of the radio-frequency recognition system of the utility model.
Fig. 2 shows the process flow diagram of an embodiment who uses the utility model.
Fig. 3 is the logic analysis process flow diagram of special circumstances.
Embodiment
Describe the technical scheme of the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 schematically shows the structured flowchart of the radio-frequency recognition system of the utility model.As shown in Figure 1, the radio-frequency recognition system 100 that being applied to of the utility model passes in and out state recognition mainly comprises: at least two RFID card reader, the first card reader 101-1 for example shown in Figure 1 and the second card reader 101-2; Processing unit 102 and storage unit 103.
These at least two RFID card reader are arranged at the import or export place, and wherein these at least two RFID card reader are provided with the conduct route of the said import or export in mode edge of each interval one preset distance.Said preset distance preferably can make and not receive interference processing unit 102 each other to connect these at least two RFID card reader at least between said two RFID card reader.Preferably, as shown in Figure 1, be connected through the RS-485 interface between said RFID card reader and the said processing unit 102.In addition, storage unit 103 is connected with said processing unit 102 signals.
According to the utility model, said processing unit 102 writes down the carrier's who judges this RFID label turnover state according to said at least two RFID card reader to stored historical in the reading state of same RFID label and the said storage unit 103.
According to an embodiment; When operation; When the said first and second RFID card reader in a predetermined amount of time all read same RFID label; Whether said processing unit 102 judges the time interval of reading this RFID label of the said first and second RFID card reader smaller or equal to a threshold value, if smaller or equal to the carrier that judges this RFID label would accomplish a subnormal turnover action, if greater than would judge that improper turnover action takes place the carrier of this RFID label.
According to another embodiment, when having only one to read a RFID label in the said first and second RFID card reader in a predetermined amount of time, improper turnover action takes place in the carrier of said processing unit 102 these RFID labels of judgement.
In the above embodiments, when the improper turnover of generation was moved, said processing unit write down in said storage unit and the query history record.In addition, when there was the historical record of improper turnover action in this RFID label that improper turnover action takes place, said processing unit 102 can also send warning.
Below, the example that passes in and out the school in conjunction with the student who is applied to school gate is described two specific embodiments of the utility model.In these two embodiment; At first to a RFID card reader be set at school gate; Be called card reader A, and a RFID card reader is set on student's the only way which must be passed, be called card reader B; And can not disturb each other, the information that reads is sent on the power PC terminating machine (being processing unit).PC has received the information of two RFID card reader different times, just can judge the state that the student passes in and out school gate through logic analysis.In this case, student's correctness of passing in and out school gate can reach one of percentage hundred.The RFID card reader is when reading card number, because the problem of bandwidth and radio-frequency identification card itself, and some odjective causes, one of can't percentage hundred reads the entrained radio-frequency identification card of student.When having only a card reader to read card number, and under the situation that another does not read, carry out the logic analysis of different time sections to make different judgements, pass in and out the state of school gate to confirm the student with data query.
Fig. 2 utilizes two dot informations to judge that the student passes in and out the process flow diagram of school gate state.The student passes through school gate earlier, passes through another point again, and just section is judged the into school state that is at any time.Through another point, pass through school gate more earlier, also section judgement at any time is in the school state.But if two dot informations between differ overlong time or have only a card reader to read card number, just need carry out the logic analysis of special special circumstances.
The first student is when the card reader A, and card reader A reads the radio-frequency card that the first student carries on one's body, and card number is sent on the PC, and PC receives after the card number, immediately with card number with receive that the time of card number is stored among the temporary library A; The first student continues to move ahead, and has passed through card reader B, and card reader B reads card number and sends to PC, PC receive behind the card number equally with card number with receive that the time of card number is stored among another temporary library B.In a single day temporary library A has information stores; Program will be automatically in temporary library B, constantly seek with temporary library A in the identical information of card number; In case find, just two times of receiving card number are compared, as long as these two times are no more than the official hour scope; Just can determine, the first student is into school or appearance.
Illustrate: card reader A reads card number 20110506; The time that sends on the PC is 7:21:30, and card reader B reads card number 20110506, and the time that sends on the PC is 7:22:12; Latter's time is greater than the former time; And the time that both differ is very short, just explains that the student who carries card number 20110506 has entered the school, if also gone out the school with regard to the student that card number 20110506 is described conversely.
Fig. 3 is the logic analysis process flow diagram of special circumstances.
Judge at first whether the time read card number is in and go to school or the time period that classes are over, if, will give a warning, to be prompted to the supvr not in these time periods.If in these time periods, with the logic analysis of doing four kinds of situation and judgement.
First kind: have only card reader A to read card number advancing the school time period,, can't judge whether the student has entered into school fully because card reader A is placed on school gate; So can only judge whether he enters the school through this student good record in the past; If do not occur record of bad behavior in the past, can confirm as into school, if but record of bad behavior is arranged; Just need give a warning, to be prompted to the supvr.
Second kind: have only card reader B to read card number advancing the school time period,, got into school so can confirm this student because card reader B is placed in the school.
The third: have only card reader A to read card number going out the school time period,, leave school so can confirm this student because card reader A is placed on school gate.
The 4th kind: have only card reader B to read card number going out the school time period,, can't judge whether the student leaves school because card reader B is placed in the school; So whether the classmate goes out the school through inquiry; Tentatively judge, according to this student record in the past, make final judgement again.Whether the inquiry classmate goes out the school, in a time period, repeat inquiry, just can make judgement.
As stated; According to the utility model; At first will correctly set two RFID card reader, and two card reader can read same card number in less time range, carry out logic analysis according to the time of reading card number then; Finally can obtain a right-on judged result, thereby overcome a situation that the RFID card reader can't correctly be judged.In case occur having only a card reader to read under the situation of card number, relative right judgement is made in the logic analysis through the time period and to the result of data query in the past.
Must be pointed out this automatic recognition system assurance correct judgment of one of percentage hundred fully; Other those skilled in the art; Under the situation of scope that does not depart from disclosed the utility model in the accompanying claims and essence, can make various modifications, interpolation and replacement.
The foregoing description provides to those of ordinary skills and realizes or use the utility model; Those of ordinary skills can be under the situation of the utility model thought that does not break away from the utility model; The foregoing description is made various modifications or variation; Thereby the protection domain of the utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (4)
1. a radio-frequency recognition system that is applied to pass in and out state recognition is characterized in that, comprising:
At least two RFID card reader are arranged at the import or export place, and wherein said at least two RFID card reader are provided with the conduct route of the said import or export in mode edge of each interval one preset distance;
Processing unit connects said at least two RFID card reader; And
Storage unit is connected with said processing unit signal,
Wherein, said processing unit writes down the carrier's who judges this RFID label turnover state according to said at least two RFID card reader to stored historical in the reading state of same RFID label and the said storage unit.
2. the radio-frequency recognition system that is applied to pass in and out state recognition as claimed in claim 1 is characterized in that, said preset distance makes and do not receive interference each other between said at least two RFID card reader.
3. the radio-frequency recognition system that is applied to pass in and out state recognition as claimed in claim 1 is characterized in that, is connected through the RS-485 interface between said at least two RFID card reader and the said processing unit.
4. the radio-frequency recognition system that is applied to pass in and out state recognition as claimed in claim 1 is characterized in that, said at least two RFID card reader comprise one the one RFID card reader and one the 2nd RFID card reader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220021614 CN202584247U (en) | 2012-01-17 | 2012-01-17 | Radio frequency identification system for in and out state identification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220021614 CN202584247U (en) | 2012-01-17 | 2012-01-17 | Radio frequency identification system for in and out state identification |
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| Publication Number | Publication Date |
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| CN202584247U true CN202584247U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220021614 Expired - Fee Related CN202584247U (en) | 2012-01-17 | 2012-01-17 | Radio frequency identification system for in and out state identification |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568066A (en) * | 2012-01-17 | 2012-07-11 | 上海中铁通信信号国际工程有限公司 | Radio frequency identification system applied to identifying get-in state and get-out state |
| CN109949429A (en) * | 2019-02-01 | 2019-06-28 | 西安艾润物联网技术服务有限责任公司 | Data processing method and device |
-
2012
- 2012-01-17 CN CN 201220021614 patent/CN202584247U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568066A (en) * | 2012-01-17 | 2012-07-11 | 上海中铁通信信号国际工程有限公司 | Radio frequency identification system applied to identifying get-in state and get-out state |
| CN109949429A (en) * | 2019-02-01 | 2019-06-28 | 西安艾润物联网技术服务有限责任公司 | Data processing method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20170117 |