CN101523422B - Electronic article surveillance enabled radio frequency identification system and method - Google Patents
Electronic article surveillance enabled radio frequency identification system and method Download PDFInfo
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Abstract
A method and system for exchanging data between one or more RFID readers and one or more EAS system devices in an RFID system using RFID air interface protocol. An RFID system includes one or more EASsystem devices in data communication with one or more RFID readers over an interrogation zone. EAS system devices utilize RFID air interface protocol to transmit wireless data signals, which may incl ude alarm event data, to the RFID readers, obviating the need to implement a separate communication infrastructure. The RFID readers may forward the alarm event data to an RFID backscatter enabled host computer for processing the received signals. The host computer may then schedule further interrogation of inventory items at locations where an alarm event has occurred. One or more multiplexers may facilitate the data exchange between RFID readers and the EAS system devices in order to provide an even more robust communication network.
Description
Technical field
The present invention relates to RF identification (" RFID ") communication and electronic article surveillance (" EAS "), and relate more specifically to support the RFID network of EAS and warning system.
Background technology
Rfid system is used in many different application, for example comprises in retail environment, obtaining and the relevant information of object of carrying out mark with the RFID identifier.For example, a RFID label can be attached to or be incorporated in a product or the packing of product.Use a RFID interrogator (to be also referred to as " RFID reader " here; It can be that fix, that move or hand-held device); A plurality of RFID labels in the interrogation of this interrogator can be activated and provide the object relevant with this RFID label information (as, product descriptor, sequence number, position etc.).These RFID labels receive and respond radio frequency (" RF ") signal so that information to be provided, for example, and about the information of the attached product of RFID label.This normally accomplishes through air interface protocol such as electric product coding (" EPC ") the RF identification agreement of using a standard.These information can comprise with shelf on or the relevant inventory information of object in the warehouse.Generally speaking, the modulator in the RFID label can use a transmitter to send back a signal perhaps to signal of these RFID readers.The signal of this transmitted/reflected is called as the backward scattering signal.In addition, can utilize a plurality of RFID scramblers that information is sent to these RFID labels (like coded message).Therefore, rfid system be used to usually to monitor one in the retail environment the product stock list and utilize the storage of data and telereference that product identification is provided, utilize a plurality of RFID labels or transponder to carry out the storage and the telereference of this data.
In addition, some RFID uses and uses a reader to come to be connected on a plurality of antennas through a traffic pilot (" MUX ").For example, using a rfid system to follow the tracks of in the retail environment of stock list, knownly providing many and read a little, each point comprises and uses a plurality of RF traffic pilots and many cables to read a little to be connected to each.Under this background, this MUX arrives a plurality of antennas based on the Digital Logic input from a controller with the RFID signal guidance, and these RFID signals are the RF signal.This MUX and the these antenna that is coupled to this MUX are used to expand the scope of reader usually, with can with order and/or data are sent to a plurality of labels and receive the backward scattering signal that contains response and/or data from these labels.An instance is in a RFID network, and wherein the commodity with the RFID label are placed on the shelf, and these shelf have a plurality of antennas that all are connected to a center reader.This network provides a long-term inventory of items on shelf.Yet in having this network of a plurality of antennas, for the necessary control of which directs network function, radiofrequency signal and ac/dc (AC/DC) electric energy, many electric wire and cables must be connected to this MUX.These MUX can be positioned to support equally in the zone of EAS and warning system.Therefore, people hope to expand these MUX use to support the purposes outside the control of RFID stock list.
These same users also have the needs to other communications.For example, the user who has a rfid system that is used for inventory management possibly also have security personnel's monitoring (warning) system, or at least there is demand in this system.This requires video camera, light infrared detector, sensor etc. are installed usually, and these devices must carry out wire communication by a wireless communication system that has monitor station and warning panel.This communication infrastructure separates with the employed foundation structure of this rfid system.The user also can have or need an EAS system.The EAS system protects assets and commodity through utilizing security personnel's label and label and EAS checkout equipment.The EAS system comes for buildings, inlet, outlet and closed area security personnel to be provided through triggering an alert event during through this EAS checkout equipment at the object that has an eas tag that is activated or EAS mark.There is polytype eas tag, like audio magnetic label and electromagnetic tag.
System as warning system and EAS system generally includes their communication network, and this network separates with rfid system.Warning system and EAS system can be wired facility or wireless facilities, and wireless facilities is increasing to be to be the basis with IEEE (" IEEE ") 802.11 standards.No matter no matter existing warning system or EAS system are being expanded also that a warning system or EAS system newly are installed in the position and this position has or with having a rfid system that is used for stock list control simultaneously, all be this situation.Consequently, the network equipment supports rfid system and warning system and/or EAS system, so caused the waste of time and money because being installed.Therefore, people hope to have a kind of method and system, and this method and system allows rfid system to have network and communication capacity, with support EAS system and warning system and with they interworkings mutually.
Summary of the invention
The present invention advantageously provides to utilize a kind of method and system that communicates between one or more RFID readers and one or more EAS system and device of RFID interface protocol in a rfid system sharp.Method and system disclosed here uses radio spectrum and RFID communication protocol, to allow the data communication between a RFID reader and the one or more EAS system and device (like sensor or alarm).Even the data that exchanged are data relevant with the EAS system, these EAS system and devices also show as the RFID label for the RFID reader.Therefore, the network service between a plurality of RFID readers and a plurality of EAS system and device can take place and need not extra installation and/or recurrent cost.
In one embodiment, a kind of method of utilizing a rfid system support to be used for the data communication of electronic article surveillance system is provided.This method comprises: receive EAS data, wherein EAS incident of this EAS data representation from one or more EAS system and devices: use a RFID air interface protocol from one first rfid system device these EAS data to be sent to one second rfid system device; And handle this EAS data.
In another embodiment, a kind of rfid system that is used to support to carry out with an electronic article surveillance system data communication is provided.This system comprises the one or more RFID readers that carry out data communication with one or more EAS system and devices, and wherein these one or more RFID readers communicate through RFID air interface protocol and this EAS system and device.
In a further embodiment, a kind of RFID traffic pilot is provided.This RFID traffic pilot comprises: be used to control a microcontroller of traffic pilot operation, wherein these these one or more EAS system and devices of microcontroller inquiry are with acquired information; An and storage unit that is used to store the information relevant with these EAS system and devices.
Description of drawings
Consult following detailed description in conjunction with the drawings and will more easily understand the present invention and attendant advantages and characteristic, in these figure, similarly Reference numeral refers to similar elements, and wherein:
Fig. 1 is the block diagram according to a system of principles of construction of the present invention;
Fig. 2 is the block diagram according to a RFID traffic pilot of principles of construction of the present invention; And
Fig. 3 is the block diagram of an alternate embodiment of the present invention.
Embodiment
According to an aspect; System 10 adopts a RFID traffic pilot, and its mode is used in the process of " Sensor Events " with EAS system and device or other security alarming system devices (for example door sensor, pir sensor, intrusion alarm unit, access controller etc.) of providing data to import for allowing it.The monitoring of this traffic pilot is from the data input of these EAS and warning system data generating device (that is: sensor, alarm, etc.), and the activity (state variation, warning, etc.) of storing them is when this traffic pilot of RFID access by readers in a normal RFID inventory process (read like shelf or monitor on the doorway).At this moment, these sensor events will be encoded as the RFID identification code with or RFID identification code and data (like second generation electronic product code) and return this RFID reader as RFID " simplification result " normally.Term " simplification " is meant that a RFID reader identifies a label that has specific sequence number from a plurality of labels in its interrogation zone.Then, this reader can be delivered to this sensor event data the business system of this facility of monitoring.
Having imagined this traffic pilot at this can be equipped with logic rules and output so that at the device that other take place to trigger when some is reported to the police.For example, this output can be used for triggering this RFID reader and accomplishes a stock list with the position at this alert event.
With reference now to accompanying drawing,, in these figure, similarly Reference numeral refers to similar elements, and Fig. 1 shows the sketch according to an example system of principles of construction of the present invention, and uses " 10 " to represent this system generally.System 10 comprises the one or more readers 12 that communicate with a RFID principal computer 14.Reader 12 as required with principal computer 14 swap datas, for example, accomplish stock list control.In this case, principal computer 14 comprises the database that is used to follow the tracks of and keep stock list.Be described below, it is all that principal computer 14 also comprises a plurality of parts, as internal memory, central processing unit, I/O, display, etc., with communication and the hierarchical relationship between other devices in the tracker 10 (for example, MUX, label, non-label apparatus, or the like).How interconnective this just allows the operations staff to understand these parts is; And permission system unit (in order to use on technicality ground); For example; Upgrade with shelf reader visual display unit that the object of a particular type is associated on price, perhaps even when a certain specific sensor is made mistakes from a specific video camera reception view data.
Except principal computer 14 or substitute this principal computer, reader 12 can carry out interface with business system 16 and be connected also swap data.This interface can be through a hard-wired or cordless communication network or is directly connected communication is provided.Business system 16 can be a single calculation element, like principal computer 14, maybe can comprise calculation element, display, input media of a plurality of networkings etc., as using with an EAS system or guard and alarm monitoring system.
Reader 12, a plurality of MUX 20, label 18 and EAS/ alarm system 22 to 30 carry out radio communication each other through the backward scattering of using antenna 32.Merit attention, though some elements such as label 18 demonstrate the antenna 32 in this device, this arrangement only is exemplary.Imagined also that an antenna 32 can be bonded within reader 12, a plurality of MUX 20, a plurality of label 18 and the EAS/ alarm system 22 to 30 or joined at this with their outside couplings.
Merit attention, all directly or indirectly carry out radio communication with reader 12 though Fig. 1 shows all devices, the present invention is not limited to this.Also having imagined one or more devices (like an EAS20) at this can be connected on the reader 12 through wired mode.
The present invention advantageously allows the transmission of typical label data and multiple EAS system and warning system data to share same RFID transmission network and carries out wireless transmission through expanding existing RFID air interface protocol, and this agreement for example is electronic product code (" EPC ") RF identification agreement.Method and system of the present invention will be transmitted into interrogator 12 or be used as the medium of network service from the radio spectrum of this interrogator of radio frequency emission and agreement (note: term " reader " and " interrogator " can exchange use herein).These communicators use these standard agreements to transmit, receive the decode the RFID packet, but the data in these bags not necessarily only are data and the orders relevant with control with tag recognition.In other words; It is label 18 that a plurality of MUX 20 show as with respect to these RFID readers, transmitter and receiver with EAS/ alarm system 22 to 30, even be not the data relevant with label with these EAS 20 with non-label apparatus 20 relevant data and/or orders.This has just expanded conventional labels identification/write/read, to allow and more firm communicate by letter of a plurality of RFID traffic pilots 16 with EAS/ alarm system 22 to 30.This arrangement has also advantageously been eliminated or has been reduced usually the cost for the desired wiring of interconnection, network and the installation of EAS/ alarm system 22 to 30.
According to another aspect, a MUX 20 who is used for a plurality of labels in its interrogation zone 18 are carried out stock taking possibly and transmit this inventory information and return principal computer 14 through reader 12 storage.In this case, MUX 20 comprises that a plurality of elements that need play an effect of reading (the non-label apparatus 22 to 30 that should note other also can comprise play the reader components that RFID reads an effect) are with storage and forwarding label or EAS system/warning device information.
For example, MUX 20a can be used for detecting and read alarm event data from the 22b of EAS system.Data corresponding to this alert event are to read from the 22b of EAS system through the RFID air interface protocol, and are stored among the MUX 20a.In other words, the 22b of EAS system shows as the label of MUX 20a.Conversely, when in the interrogation of main reader 12 at it during inquiry unit, MUX 20a shows as a label.When further by inquiry; Main reader 12 is not only found out MUX 20a; And find out any label in its interrogation, EAS/ alarm system and other MUX 20 that RFID launches, it also receives the alarm event data that is obtained by the 22b of EAS system at first.In this way, reader 12 just can provide the alarm event data that can further handle to business system 16.For example, the stock taking of all the RFID labels of instruction reader 12 beginnings in the zone of being supported by the 22b of EAS system that business system 16 can be direct or indirect is to confirm that which object has triggered the EAS system alarm.
Fig. 2 is the block diagram of an exemplary MUX 20 of constructed according to the principles of the present invention, and it can be used for supporting function described herein.MUX 20 comprises the microcontroller 34 of the operation that is used to control MUX 20.Storage unit 36, RF detector 38, radio frequency modulator 40 and switching device 42 and microcontroller 34 electrical communication.A plurality of sampling thiefs that possibly need and the one or more electrical communication in coupling mechanism 44 and these detectors 38.Be in operation, MUX operation code and data are stored in the memory storage 36, and this memory storage can comprise volatibility and/or nonvolatile storage.Modulator 40 is used for a baseband signal is modulated to a RF carrier wave, to be used for the transmission through switch unit 42.These detectors 38 and the RF input and extraction this baseband signal and order and data block of samplers/couplers 44 common operations to receive from one, the RF signal that is received for example is a kind of signal that meets the EPC air-interface standard.Switch unit 42 is controlled so that this input is switched on one of these outlet lines by microcontroller 34.Merit attention,, also imagined switch unit 42 at this and can control by low intelligentized logical circuit though Fig. 2 shows the MUX 20 of a microprocessor controls.
In addition, though also not shown in the drawings, also imagined the interface that MUX 20 can comprise one or more other types at this, so as with a plurality of EAS and alarm system direct communication.For example, some devices 22 to 30 possibly enough approach a MUX 20, to guarantee a direct wired connection through an Ethernet or serial line interface.Like this, imagined the communication interface that MUX 20 can comprise other types, to control a plurality of EAS and alarm system and swap data with it at this.
Refer again to Fig. 1, though Fig. 1 comprises a plurality of MUX 20, and do not require that all communications between multiple arrangement all take place through a MUX 20, these devices for example are EAS system and alarm system 22 to 30.Imagined reader 12 at this and can play a communications bridge beam action between the multiple arrangement, these devices for example are door sensor 24 and business system 16 and/or the 22a of EAS system.
Referring now to Fig. 3; If an EAS/ alarm system 22 to 30 was not equipped with the ability of supporting RFID communication originally; Having imagined an independent reception data transmitter unit 46 at this can be as the interface between these devices 20 to 30 and the antenna 32, and this interface is to support RFID backscatter communications described herein.For example, separate units 46 can utilize a USB or other serial or parallel communication link so that be connected with these device 22 to 30 interfaces.Then, the reception data transmitter unit 46 of separation can be created and these data blocks of store/buffer and in response to the RFID interrogating signal.
An advantage of the present invention is, although some aspect of embodiment of the present invention possibly require the customization of software, existing RFID reader hardware can be used with the present invention generally.In case the data of this EAS or warning system are stripped from out from this RFID simplification, these data just can be sent to business system 16 and be used for further processing/action.
In addition, the data relevant with the stock list object can (at aspects such as time, places) be associated with incident now, and these incidents such as EAS report to the police, the moving of the opening of door, people, warning that video triggers or the like.Like this, single business system 16 can be easily as single source of the data relevant with enterprise be associated with moving with the position of stock list object a plurality of RFID readers with alert event in identical database structure.
As above pointed, when when the node detection to of a MUX 20 is reported to the police " object ", a normal inventory process can change its behavior.For example, when detecting an EAS warning, can carry out the stock taking of once more concentrating in the position of this EAS system, to detect a plurality of objects through the EAS system.In other words, the present invention allows inventory data and event data to be hunted down together and analyzes to strengthen losing prevention scheme.
The present invention can realize in a kind of combination of hardware, software or hardware and software.The embodiment of method and system of the present invention can realize that with a kind of concentrated mode perhaps the mode with a kind of distribution realizes in a computer system, different elements is dispersed in the computer system of several interconnection in the mode of this distribution.The computer system of any kind perhaps is adapted for other devices of carrying out method described herein and all is suitable for carrying out function described herein.
The combination of a typical hardware and software can be the general-purpose computing system that has a computer program, and when being loaded and carry out, this this computer system of computer program control is so that it carries out method described herein.The present invention can also be comprised in the computer program, and this product comprises all functions that method described herein can be realized, and in the time of in being loaded in a computer system, this product can be carried out these methods.
In this article; Computer program or application program are meant any expression of a cover instruction with any language, code or symbol; These instructions are intended to make a system to have the information processing capability of carrying out a particular functionality, and this execution particular functionality is directly to carry out or after with the next item down or binomial, carry out: a) be transformed into another kind of language, code or symbol; B) duplicate with different material form.Importantly, the present invention can implement and not break away from its spirit and base attribute with other concrete form, and therefore, should indicate scope of the present invention referring to following claims rather than above instructions.
Those of skill in the art will understand the present invention and be not limited in the above content that specifically illustrates and explain.In addition, only if above have opposite description in addition, should notice that all accompanying drawings all are not proportional.Need not to deviate from scope of the present invention and can carry out various modifications and variation according to the above-mentioned content of teaching with spirit, scope of the present invention and spirit are only limited following claims.
Claims (23)
1. rfid system support of a use is used for the method for the data communication of electronic article surveillance system, and this method comprises:
Receive electronic article surveillance data, electronic article surveillance incident of this electronic article surveillance data representation from one or more electronic article surveillance system device;
Utilize a RFID air interface protocol that these electronic article surveillance data are sent to one second rfid system device from one first rfid system device; And
Handle this electronic article surveillance data,
Wherein, one in said first rfid system device and the said second rfid system device is the RFID reader, and this method also comprises:
Report to the police and trigger this RFID reader with execution stock taking in the position of alert event.
2. the method for claim 1, wherein this first rfid system device is a principal computer of having launched the RFID backward scattering with one of this second rfid system device.
3. the method for claim 1, wherein this first rfid system device and the business system of communicating by letter in one of this second rfid system device is this rfid system of monitoring.
4. the method for claim 1, wherein this first rfid system device is a traffic pilot with one of this second rfid system device.
5. method as claimed in claim 4, wherein this traffic pilot shows as the RFID label in this first rfid system device and this second rfid system device one or more.
6. the method for claim 1, wherein this one or more electronic article surveillance system device shows as the RFID label for this RFID reader.
7. method as claimed in claim 6 further comprises providing a reception sender module to communicate by letter with the RFID air interface protocol between this RFID reader to aid in this one or more electronic article surveillance device.
8. method as claimed in claim 2, wherein at least one in this first rfid system device and the second rfid system device is that the master reads point apparatus, this method further comprises:
Read information from this one or more electronic article surveillance system device; And
Utilize this RFID air interface protocol that this information is read point apparatus from this master and send to the principal computer that this has launched the RFID backward scattering.
9. method as claimed in claim 3, wherein at least one in this first rfid system device and the second rfid system device is that the master reads point apparatus, this method further comprises:
Read information from this electronic article surveillance system device; And
Utilize this RFID air interface protocol that this information is read point apparatus from this master and send to this business system.
10. method as claimed in claim 9, wherein this information comprises the electronic article surveillance alarm event data.
11. method as claimed in claim 10 further comprises:
From this information, extract this electronic article surveillance alarm event data; And
Stock list object data are associated with the electronic article surveillance alarm event data of being extracted.
12. method as claimed in claim 11 comprises that further this first rfid system device of instruction and one of this second rfid system device start the stock list of all rfid system devices based on this electronic article surveillance alarm event data.
13. one kind is used to support and the rfid system of the data communication of an electronic article surveillance system that this rfid system comprises:
With one or more RFID reader that one or more electronic article surveillance system device carries out data communication, wherein this one or more RFID reader communicates through a RFID air interface protocol and this one or more electronic article surveillance system device; Wherein, report to the police this one or more RFID reader of triggering with execution stock taking in the position of alert event.
14. rfid system as claimed in claim 13 further comprises a principal computer of launching the RFID backward scattering.
15. rfid system as claimed in claim 14 further comprises a business system of monitoring the communication in this rfid system.
16. rfid system as claimed in claim 15 further comprises one or more RFID traffic pilot of communicating by letter with this one or more electronic article surveillance system device.
17. rfid system as claimed in claim 16, wherein each traffic pilot shows as the RFID label for this one or more RFID reader.
18. rfid system as claimed in claim 13, wherein each electronic article surveillance system device shows as the RFID label for this one or more RFID reader.
19. rfid system as claimed in claim 13 comprises that further one receives sender module to aid in communicating by letter of RFID air interface protocol between this one or more RFID reader of one or more electronic article surveillance device and this.
20. rfid system as claimed in claim 16; Wherein at least one in this one or more traffic pilot is the main point apparatus that reads; Wherein this one or more traffic pilot reads information from said electronic article surveillance system device, and utilizes this RFID air interface protocol that this information is sent to the principal computer that this has launched the RFID backward scattering.
21. rfid system as claimed in claim 16; Wherein at least one in this one or more traffic pilot is that the master reads point apparatus, and wherein this one or more traffic pilot reads information and utilizes this RFID air interface protocol that this information is sent to this business system from said electronic article surveillance system device.
22. rfid system as claimed in claim 21, wherein this information comprises the electronic article surveillance alarm event data.
23. rfid system as claimed in claim 22, wherein this business system is extracted this electronic article surveillance alarm event data from this information, and stock list object data are associated with this electronic article surveillance alarm event data.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84821506P | 2006-09-28 | 2006-09-28 | |
| US60/848,215 | 2006-09-28 | ||
| US11/760,851 US20080079582A1 (en) | 2006-09-28 | 2007-06-11 | Electronic article surveillance enabled radio frequency identification system and method |
| US11/760,851 | 2007-06-11 | ||
| PCT/US2007/021121 WO2008042355A2 (en) | 2006-09-28 | 2007-09-28 | Electronic article surveillance enabled radio frequency identification system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101523422A CN101523422A (en) | 2009-09-02 |
| CN101523422B true CN101523422B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780036202XA Expired - Fee Related CN101523422B (en) | 2006-09-28 | 2007-09-28 | Electronic article surveillance enabled radio frequency identification system and method |
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| Country | Link |
|---|---|
| CN (1) | CN101523422B (en) |
| AR (1) | AR063062A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8816854B2 (en) * | 2009-11-10 | 2014-08-26 | Tyco Fire & Security Gmbh | System and method for reducing cart alarms and increasing sensitivity in an EAS system with metal shielding detection |
| TWM479447U (en) * | 2010-01-12 | 2014-06-01 | Ind Tech Res Inst | Device for integrating products with digital contents in a network, and apparatus therewith |
| WO2016193778A1 (en) * | 2015-05-29 | 2016-12-08 | Terrence Keith Ashwin | A method and apparatus for selecting a wireless reader action as a result of an output data received from a wireless identification device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349639A (en) * | 1999-05-04 | 2002-05-15 | 传感电子公司 | Self-checkout/self-check-in RFID and electronic article surveillance system |
| CN1791895A (en) * | 2003-05-19 | 2006-06-21 | 关卡系统股份有限公司 | EAS/RFID identification hard tags |
-
2007
- 2007-09-28 AR ARP070104321 patent/AR063062A1/en active IP Right Grant
- 2007-09-28 CN CN200780036202XA patent/CN101523422B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349639A (en) * | 1999-05-04 | 2002-05-15 | 传感电子公司 | Self-checkout/self-check-in RFID and electronic article surveillance system |
| CN1791895A (en) * | 2003-05-19 | 2006-06-21 | 关卡系统股份有限公司 | EAS/RFID identification hard tags |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101523422A (en) | 2009-09-02 |
| AR063062A1 (en) | 2008-12-23 |
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