CN113963471A - RFID tag and operation method thereof - Google Patents
RFID tag and operation method thereof Download PDFInfo
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- CN113963471A CN113963471A CN202010697510.4A CN202010697510A CN113963471A CN 113963471 A CN113963471 A CN 113963471A CN 202010697510 A CN202010697510 A CN 202010697510A CN 113963471 A CN113963471 A CN 113963471A
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- card reader
- rfid tag
- door
- identification number
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/27—Individual registration on entry or exit involving the use of a pass with central registration
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- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
Abstract
The invention provides an RFID (radio frequency identification) tag, which comprises a portable RFID tag and a gate-type card reader, wherein the RFID tag adopts medium-high frequency, card reader coils are oppositely arranged on a vertical strut of the gate-type card reader, the card reader coils are used for reading RFID tag signals, the card reading distances of the two card reader coils are partially crossed, electrical signals of the card reader coils are connected to a switch of an access control, and the access control is provided with two switches which are respectively an opening switch and a closing switch; the invention has the function of penetrating leather or textile fabric to a certain extent and is matched with a portable RFID label, the intelligentization and the non-inductive entering of an entrance guard type card reader and the RFID label are improved, the RFID label does not need to be taken out, only the carrying is needed, the invention is very humanized and intelligentized, the passing efficiency is improved, the scientific and technological implantation sense is increased, the recognition rate is high, and the accuracy is high.
Description
Technical Field
The invention relates to the technical field of radio frequency, in particular to an RFID (radio frequency identification) tag and an operation method thereof.
Background
RFID, i.e. radio frequency, RFID tags generally consist of three parts: the RFID card reader comprises a card reader, an RFID card and a related antenna, wherein the antenna of the card reader transmits a radio signal to an RFID tag, the RFID tag receives the signal through the antenna of the RFID tag, the signal is utilized to start an integrated circuit chip on the tag to work, the RFID is a non-contact card reading chip, the distance of reading the card by the RFID has different card reading distances according to different transmitting frequencies, the smaller the frequency is, the shorter the card reading distance is, the smaller the frequency is, the card reading distance is shorter in a common access control mode, the mode can achieve the effect of one card for one pass, but the mode is not intelligent enough, the hands are required to be left to be free to swipe the card under the condition that the card is not taken conveniently, for example, the hands are not free, and the trouble is very troublesome, in order to solve the problem, the internal mechanism of the RFID tag is improved and subdivided, and the RFID tag is accessed by adopting different marks and access modes, and the work of the intelligent terminal in the awakening state is kept, repeated useless instructions and scanning are avoided, and the intelligent effect is achieved.
Disclosure of Invention
The present invention is directed to an RFID tag and a method for operating the same, which overcome the above problems or at least partially solve the above problems, so as to solve the problem of insufficient intelligence of a door access type RFID tag.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides an RFID label, which comprises a portable RFID label and a door-type card reader, wherein the RFID label adopts medium-high frequency, the vertical pillar of the door-type card reader is oppositely provided with card reader coils, the card reader coils are used for reading RFID label signals, the card reading distances of the two card reader coils are partially crossed, the electrical signals of the card reader coils are connected with a switch of an entrance guard, the entrance guard is provided with two switches which are respectively an opening switch and a closing switch, wherein the opening switch is an instant switch, the closing switch is a delay switch, the delay switch delays for 5-10 seconds, the entrance guard is provided with a revolving door which is opened in a single direction, the revolving door is opened and closed under the action of a motor, the door-type card reader adopts a half-opening source mode, a ground sensing coil is arranged below the door-type card reader, the ground sensing coil and the card reader coils are arranged in a staggered mode, and the ground sensing coils are arranged at the bottoms of the entrance card reader and the exit card reader, and two ground induction coils all set up in the one side of keeping away from entrance guard, and the card reader coil all sets up in the one side of being close to entrance guard.
As a further aspect of the present invention, the RFID tag is internally divided into a plurality of areas for recording information, including a tag code, a tag identification number, a user identification number and a management identification number, the tag code is a unique code of the RFID tag, the tag identification number is a group code of the RFID tag, the user identification number is an information code of a single holder, and the management identification number is used for a same management code of a manager or an organizer.
As a further scheme of the invention, the tag identification number comprises an access password and a built-in password, the access password is information interacted with a card reader, the built-in password is set in a specific character coding mode and is matched with external access, and the built-in password is matched with internal reading and writing of the RFID tag.
As a further scheme of the invention, the user identification number is a specific character code, and the user identification number is obtained by the card reader when the access password is finished.
As a further scheme of the invention, the management identification number is the background management of entering the RFID label by the identity of a manager, the internal storage of the RFID label and the corresponding data are modified, the management identification number only can change the user identification number, and the management authorization number can also authorize and activate the access identification number.
As a further aspect of the present invention, a tag coil is disposed in the RFID tag.
An operation method of an RFID tag, comprising the steps of:
a human body enters the door-type card reader to trigger the action of the ground induction coil, and the ground induction coil wakes up the card reader coil to work;
the tag coil is electrified under the action of the magnetic field of the card reader coil;
the gate-type card reader sends an access instruction to the RFID tag;
the access instruction is passed, the door type card reader sends door opening instruction information to the door access, and the door access opening switch receives the instruction and identifies and scans the door access state;
the door opening instruction is absorbed by the instruction absorption module in the opening state of the door access and is not executed any more;
the delay switch executes a closing instruction after delaying for 5-10 seconds.
As a further scheme of the invention, the information of the RFID label in the scanning process is transmitted to the background module for storage.
As a further scheme of the invention, the door access state identifies the identified state, the state is between the receiving instruction of the opening switch and the door closing instruction triggered after the delay time of the delay switch is finished, and in the state, the instruction absorption module absorbs the instruction sent by the door type card reader
The invention provides a method, which has the following beneficial effects: the invention adopts a mode of combining an additional storage partition with a password to adjust the RFID label, so that the RFID label can be read by a door-type card reader without taking out and attaching when playing a role of an access card, and can be accessed and identified through the password, the mode of adopting medium-high frequency radio frequency has more than one meter of scanning space, and has certain function of penetrating leather or textile fabric to be matched with the portable RFID label, thereby triggering the opening and closing function of the access, simultaneously having the absorption function of instructions, absorbing the access control function triggered by multiple persons for multiple times, avoiding the access from being in an open state for a long time, improving the intellectualization and the non-inductive access of the access-type card reader and the RFID label, only needing to carry the RFID label without taking out the RFID label, greatly humanizing and intellectualizing, improving the passing efficiency and simultaneously increasing the scientific and technological implantation sense, the recognition rate is high, and the accuracy is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of an operation of an RFID tag according to an embodiment of the present invention.
FIG. 2 is a block diagram of an exemplary embodiment of a framework for executing instructions.
Fig. 3 is a schematic diagram of an overall tag usage structure according to an embodiment of the present invention.
In the figure: 1. a door entry card reader; 2. a card reader for going out; 3. a card reader coil; 4. a ground induction coil; 5. entrance guard; 6. a revolving door.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1 to 3, an RFID tag according to an embodiment of the present invention includes a portable RFID tag and a portal card reader, the RFID tag uses a middle-high frequency with a frequency of 13.56HZ, and since a read-write distance at the frequency is less than 1.5 m, a width of the portal card reader is not more than 3 m, and 2 m is used as an optimal distance, so that a person can enter the portal card reader independently or side by side, a card reader coil 3 is disposed on a vertical pillar of the portal card reader, the card reader coil 3 is used for reading an RFID tag signal, the card reading distances of the two card reader coils 3 are partially crossed to ensure that the card reader coils 3 read the card completely, an electrical signal of the card reader coil 3 is connected to a switch of a door access 5, and the door access 5 is provided with two switches, which are an open switch and a close switch, respectively, wherein the open switch is an instant switch and the close switch is a delay switch, the time delay switch delays for 5-10 seconds, a revolving door 6 which is opened in one direction is installed on an entrance guard 5, the revolving door 6 is opened and closed under the action of a motor, in order to enable the card reader to have more effective induction, the door type card reader adopts a half-open source mode, a ground induction coil 4 is installed below the door type card reader, the ground induction coil 4 and the card reader coil 3 are arranged in a staggered mode, the ground induction coil 4 is arranged at the bottom of the entrance card reader 1 and the bottom of the exit card reader 2, the ground induction coil 4 is arranged at the position far away from the entrance guard 5, the card reader coil 3 is arranged at one side close to the entrance guard 5, in use, the ground induction coil 4 is firstly triggered to wake up the card reader coil 3 to scan an RFID label, and when a password of the card reader coil 3 corresponds to the RFID label, a switch of the entrance guard 5 is opened, so that the entrance guard 5 and the door type card reader are linked.
Preferably, the RFID tag has a storage function, and the RFID tag is internally divided into a plurality of areas for recording information, including a tag code, a tag identification number, a user identification number and a management identification number, the tag code is a unique code of the RFID tag, the tag identification number is a group code of the RFID tag, the user identification number is an information code of a single holder, the management identification number is used for the same management code of a manager or an organizer, and different codes are arranged by using a smaller storage space for specific numbers or symbols.
Preferably, the tag identification number comprises an access password and a built-in password, the access password is information interacted with a card reader, the access password forms a unique interaction language at the matched card reader, namely only a specific access password is set, when the RFID tag enters the working range of the card reader, a pulse signal is triggered by the fact that the access password is consistent with the password of the card reader or the passwords of the card reader and the passwords of the card reader are combined into a complete password, the pulse signal is transmitted to a switch of the entrance guard 5, so that the revolving door 6 is opened, the access password is a unique password code made in the framework of the industry standard, the password is a group code, namely the card reader can be a plurality of visitors, the RFID tag is a plurality of interviewees, the RFID tag can be correctly used only when the two passwords are matched with each other, the built-in password is a management code in a secret key form, namely, an administrator can enter the RFID tag through the built-in password and change the user identification number, the RFID tag has the using qualification, the form of the built-in password is various, the built-in password is set in a specific character coding form, the access password and the built-in password are passwords with different purposes, the access password is matched with external access, and the built-in password is matched with internal reading and writing of the RFID tag.
Preferably, the user identification number is a specific character code, the character can be a combination of numbers and Chinese characters, also can be a combination of letters and numbers, and also can be a combination of numbers, the user identification number is not in a unique code form, the purpose of the user identification number is to manage in a group or in a specific area, the user identification number only plays a role of marking, and the user identification number can be simultaneously obtained by the card reader when an access password is completed, so that the recording and management are convenient, and a background management and personnel management function and a function of recording access records are added.
Preferably, the management identification number enters the background management of the RFID tag by the identity of a manager, only a secret key matched with the management identification number can enter the internal storage of the RFID tag and modify corresponding data, the management identification number can only change the user identification number, the management is convenient, the management authorization number can also authorize and activate the access identification number, namely, only the RFID tag authorized by the management can be read by the gate-type card reader, otherwise, even if the gate-type card reader reads information, the management identification number cannot be matched with the RFID tag.
Preferably, the tag coil is a structure which is built in the RFID tag and generates current, and the working current of the tag coil is the current generated by the interaction of the magnetic field generated by the coil of the card reader 3.
An operation method of an RFID label comprises various steps, and the specific steps are as follows:
step 2, the card reader coil 3 scans the human body in the opposite direction, the RFID tag has certain penetrability and can penetrate leather or textile materials, so that the RFID tag placed on the human body is scanned, and the RFID tag can be scanned because the human body is completely in the card reader coil 3 in a scanning state;
step 7, after the door access state recognition is completed by the door type card reader, two conditions are generated, one is that a command is directly executed to open the door access 5, and the other is that a door opening command sent by the door type card reader is absorbed through a feedback module, namely the command is not required to be executed and can be absorbed, so that the situation that the door access 5 cannot be closed all the time due to the fact that a command program always exists in a system is avoided, and the command absorption module is in a working state only when a repeated unexecuted command state occurs;
step 8, triggering the delay switch module after the entrance guard 5 is completely opened, wherein the delay time is 5-10 seconds, and the specific delay time is specifically set according to the flow of people and the requirement, and generally adopts 10 seconds of delay;
and 9, the human body passes through the entrance guard 5 and passes through another door type card reader, and the coil of the card reader is not awakened due to the staggered arrangement between the ground induction coil 4 and the coil of the card reader, so that the condition of reading the RFID label cannot be generated at the position, the reading frequency of the RFID label is reduced, and the service life of the RFID label is prolonged.
Preferably, the information of the RFID tag in the scanning process is transmitted to the background module, the information can be transmitted in a wired mode or in a wireless mode through the transmission, the background module records and classifies the information, the frequency and time of identification of the RFID tag are recorded, the fault problem can be found out in time when the equipment is checked and maintained conveniently, and normal use of the door-type card reader and the RFID tag is guaranteed.
Preferably, the entrance guard state in step 6 identifies the identified state, in order to open the door between the instruction received by the switch and the door closing instruction triggered after the delay time of the delay switch is completed, in this state, the instruction absorption module absorbs the instruction sent by the door reader, if the instruction occurs after the delay switch is triggered, the instruction is not absorbed, the opening of the switch continues to execute to reopen the entrance guard 5, and the normally open state of the entrance guard is maintained.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. An RFID label is characterized by comprising a portable RFID label and a door type card reader, wherein the RFID label adopts medium-high frequency, card reader coils are oppositely arranged on a vertical pillar of the door type card reader, the card reader coils are used for reading RFID label signals, the card reading distances of the two card reader coils are partially crossed, the electrical signals of the card reader coils are connected to a switch of an entrance guard, two switches, namely an opening switch and a closing switch, are arranged on the entrance guard, wherein the opening switch is an instant switch, the closing switch is a delay switch, the delay switch delays for 5-10 seconds, a revolving door which is opened in a single direction is arranged on the entrance guard, the revolving door is opened and closed under the action of a motor, the door type card reader adopts a half-opening source mode, a ground sensing coil is arranged below the door type card reader, the ground sensing coil and the card reader coils are arranged in a staggered mode, and the ground sensing coil is arranged at the bottoms of the entrance card reader and the exit card reader, and two ground induction coils all set up in the one side of keeping away from entrance guard, and the card reader coil all sets up in the one side of being close to entrance guard.
2. The RFID tag of claim 1, wherein the RFID tag is internally divided into a plurality of areas for recording information, including a tag code, a tag identification number, a user identification number and a management identification number, wherein the tag code is a unique code of the RFID tag, the tag identification number is a group code of the RFID tag, the user identification number is an information code of a single holder, and the management identification number is a same management code of a manager or an organizer.
3. The RFID tag of claim 2, wherein the tag identification number comprises an access password and a built-in password, the access password is information interacting with the card reader, the built-in password is set in a specific character code form, the access password is matched with external access, and the built-in password is matched with internal reading and writing of the RFID tag.
4. An RFID tag as recited in claim 3, wherein the user identification number is a specific character code, and the user identification number is obtained by the reader when the access password is completed.
5. The RFID tag of claim 4, wherein the management identification number is a background management of entering the RFID tag with the identity of a manager, modifying the corresponding data in the internal storage of the RFID tag, the management identification number only can change the user identification number, and the management authorization number also can authorize and activate the access identification number.
6. The RFID tag of claim 1, wherein a tag coil is disposed within the RFID tag.
7. An operation method of an RFID tag, characterized by comprising the steps of:
a human body enters the door-type card reader to trigger the action of the ground induction coil, and the ground induction coil wakes up the card reader coil to work;
the tag coil is electrified under the action of the magnetic field of the card reader coil;
the gate-type card reader sends an access instruction to the RFID tag;
the access instruction is passed, the door type card reader sends door opening instruction information to the door access, and the door access opening switch receives the instruction and identifies and scans the door access state;
the door opening instruction is absorbed by the instruction absorption module in the opening state of the door access and is not executed any more;
the delay switch executes a closing instruction after delaying for 5-10 seconds.
8. The method of claim 7, wherein the information of the RFID tag during the scanning process is transmitted to the background module for storage.
9. The operation method of the RFID tag according to claim 7, wherein the entrance guard state identifies the recognized state, in which the command absorption module absorbs the command sent by the door reader, between the time when the opening switch receives the command and the time when the delay switch delays the completion of the door closing command triggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010697510.4A CN113963471A (en) | 2020-07-20 | 2020-07-20 | RFID tag and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010697510.4A CN113963471A (en) | 2020-07-20 | 2020-07-20 | RFID tag and operation method thereof |
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| CN113963471A true CN113963471A (en) | 2022-01-21 |
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| CN202010697510.4A Pending CN113963471A (en) | 2020-07-20 | 2020-07-20 | RFID tag and operation method thereof |
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| US20070001835A1 (en) * | 2003-01-25 | 2007-01-04 | Ubisense Limited | System for detecting intruders in a populated space |
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