Patent Application
20080189059
The present invention is related to a device and method to inspect and reject defective RFID tags in the process of batch conversion of the RFID tag to RFID label whereby RFID tags are embedded into paper labels of varying sizes, in accordance to customer requirements.
Radio Frequency Identification (RFID) uses a smart tag capable of transmitting data by radio. The basic RFID system consists of 3 components:
The basic feature of a RFID tag is to detect the interrogation field or transmission in order to affect a response for data transfer. The main components in a RFID tag circuitry essentially comprises of the following elements:
There are basically 3 types of RFID transponders that are most widely used in the world. They are (a) contactless cards, (b) contactless tickets and (c) smart labels.
A smart RFID label has a transponder device with a programmable microchip and an antenna. Data can be read or written with a reader device, without a direct line of sight. Transponders embedded inside paper labels (“RFID labels”) assist businesses in product identification, control, tracking and security and are used in a wide variety of many applications.
Methods of manufacture of RFID labels are known. For example, U.S. Pat. No. 6,451,154 describes a high volume method of making RFID labels comprising: (a) providing a plurality of RFID inlets, each including a chip (and antenna), on a first web; (b) covering the RFID inlets with a second web to provide a composite web; (c) providing pressure sensitive adhesive on a portion of one of the webs that will be an exterior portion of a label once ultimately formed; (d) verifying the functionality of, or programming, the chips prior to formation of the composite web; and, (e) acting on the composite web so as to provide the composite web into labels having a top face, and a bottom face with pressure sensitive adhesive. Step (b) is practiced by laminating the first and second webs by passing them between laminating rolls without harming the RFID inlets by providing a recess in at least one of the laminating rolls in alignment with the RFID inlets. The method may further comprise (f) imaging variable indicia on the top face. High speed practice of the method is possible; that is (a)-(e) may be practiced at a rate of at least about 100 feet per minute (e.g. up to about 300 ft./min.) and also typically (f) is practiced after (e).
An alternative process of manufacturing RFID labels is to convert RFID tag to RFID labels in batches. Such a batch conversion process has been described in PCT/SG2004/000302 filed on 17 Sep. 2004 (Choong Alex et al). This batch conversion process offers flexibility since specific batches of labels, as requested by the customer can be produced. Examples are shipping labels related to say, one particular container or even a few containers for a specific shipment or shipping labels for one particular flight. Such a specific batch conversion of RFID tags to RFID labels is unlike the invention described in U.S. Pat. No. 6,451,154.
Irrespective of whether it is a production of a high volume RFID labels or production of a batch of RFID labels, there are always defective or non-working RFID tags in a reel (referred to as “RFID inlay reel”).
According to PCT/US2005/034523, the percentage of labels having defective inlays is currently about 1-20%.
Again irrespective of whether it is a high volume printing process or batch printing process, both types of processes face much lost time and incur additional costs in testing and identifying defective RFID tags in the inlays before these are shipped to the end user. Another difficulty faced during the conversion of RFID tags to RFID labels is to properly identify defective RFID tags by testing and identifying each RFID tag at a reasonable speed since the printing and conversion process is on going. The testing and identifying of defective RFID tags is also complicated by the close proximity of each of the RFID tags since these are spaced in close proximity to each other in the RFID inlay reel. The close proximity of the RFID tags causes the testing unit to elicit readings from not just the defective RFID tag but the adjacent RFID tags, as well.
A solution offered by, PCT/US2005/034523 (Avery Dennison Corporation) is to remove each defective label from the web and use an optical sensor to read a mark treating it as though the removed label is still present.
PCT/SG2004/00302 proposes a novel batch conversion process in which the RFID tags and label liner are fed together at one point to convert the RFID tags into RFID labels. Each RFID tag must be accurately embedded onto each paper label and then encoded and have the bar codes printed in the same process.
Detection and removal of defective RFID tags is also an issue with such a batch conversion process. If the defective RFID tags are not detected before conversion into RFID labels, the resulting RFID label would be defective. Such defective labels have to be removed, prior to be used. End users therefore incur time and manpower to check each RFID label to ensure these are in good working condition. The presence of defective RFID labels would mean the RFID label producer has to embed more RFID tags to produce more RFID labels to cover any shortfall of good RFID labels requested by an end user. The costs of checking each RFID label and separation of defective RFID label would be high since the detection is done after the RFID labels are produced. The costs would include removing defective RFID label from a single reel of RFID labels, the removal of the defective RFID label causing breakage in the reel of RFID labels. The associated costs would also include downtime since the removal of defective RFID labels would mean interrupted printing or coding of the RFID labels
It is therefore desirable for a defective RFID tag to be detected and removed prior to conversion to RFID label so that the final output of reel of RFID label consisting of all working RFID labels.
However, detection of a defective RFID tag prior to using the RFID tags in the batch conversion process is still not an acceptable solution. It is possible that a RFID tag be damaged during the set up of the batch conversion process. It is preferable that any damaged RIFD tag be detected just before being embedded onto the liner as the final output would possibly be almost 100 percent non-defective.
U.S. Pat. No. 6,593,853 (Barett Tony J et al) proposes a solution wherein defective RFID labels are marked for identification and a replacement RFID label printed to make up for the defective RFID label. U.S. application Ser. No. 10/635,418 (Keith Jusas et al) adopts a similar treatment towards defective RFID labels.
It is therefore desirable that only non-defective RFID tags be embedded onto the liner to produce the RFID labels. It is desirable that any defective RFID tag be detected and immediately removed during the RFID batch conversion process before the defective RFID tag is embedded onto the liner to produce the RFID label. It is highly desirable if the defective RFID tag can be removed from the on-going conversion process without interruption of the batch conversion process, thereby reducing any possibility of downtime.
This invention offer a solution to the problem of detecting and separating defective RFID tags during the process of batch conversion of RFID tags to RFID labels.
Furthermore, this invention offers a solution in providing RFID end users with all working RFID labels, for use without the requirement for checking whether such RFID labels are in working condition.
The subject invention will ensure lower costs of labor/man-hour, improved efficiency of production/conversion process and reduced wastage during tag-label conversion. More fundamentally, the invention would result in a significant reduction of the costs of RFID labels, since all RFID labels are in working condition upon shipping out.
It is an object of the present invention to provide a device and method to detect and separate a defective RFID tag prior to embedding a batch of RFID tag onto a label liner in the conversion of RFID tags to RFID labels, thereby resulting in an output of RFID labels in good working condition.
A first object of the invention is a RFID detection and separation device for a RFID Conversion system, said RFID Conversion system having a microcontroller, a liner unwinding station, a RFID reel unwinding station, a RFID feeding station, a liner feeding station, said microcontroller controlling the movement of an inlay reel of RFID tags from the RFID reel unwinding station into the RFID feeding station, said microcontroller also controlling the movement of a reel of liner mounted on a Liner Unwinding station, through a liner feeding station, for the separation of the RFID tags from the inlay reel for embedding onto the liner to produce RFID labels, characterized in that in a separation mode, a RFID tag is inspected and if found good, the RFID tag is separated by the RFID detection and separation device and dispensed onto a liner to form a RFID label, and upon detection of a defective RFID tag, the RFID detection and separation device goes into a non separation mode, whereby the defective RFID tag passes the RFID detection and separation device without separation from the inlay reel.
Preferably the RFID detection and separation device for a RFID Conversion system consist of:
A second object of the invention is a system comprising a RFID detection and separation device to detect and separate a defective RFID tag for a RFID Conversion system, the system having:
Advantageously, the system having a RFID detection and separation device to detect a defective RFID tag for a RFID Conversion system, comprises:
Preferably, the RFID Tensioning Unit consisting of a plurality of dancers and a pair of inlay reel brakes.
Alternatively, the RFID Tensioning Unit consists of a servomotor with torque control.
Alternatively, the RFID Tensioning Unit consists of a motor and clutch.
Preferably, after a defective RFID tag is detected by the RFID inspection unit, it moves on over the RFID separator, the inlay reel brakes closes on the inlay reel to stop the inlay reel from moving and at the same time the RFID separator is retracted, so that the RFID tag does not separate from the inlay reel to be embedded onto the liner to return to a winding station and thereafter said pair of inlay reel brakes opens, the inlay reel moves forward with another RFID tag to be inspected.
Preferably, the RFID Positioning unit for use with the system to detect and separate a defective RFID tag consist of a vision system which checks the position of the RFID tag to ensure it is accurately positioned with respect to the RFID separator so that the RFID tag can be read accurately by the RFID inspection unit after each dispensing cycle.
Advantageously, the RFID Positioning unit for use with the system to detect and separate a defective RFID consists of a vision system which checks and adjust the position of the RFID tag on the inlay reel so that only the RFID tag directly below the RFID inspection unit is inspected.
Alternatively, the RFID Positioning unit for use with the system to detect and separate a defective RFID consists of an imaging system which takes an image of the RFID tag, checks and adjust the position of the RFID tag on the inlay reel so that only the RFID tag directly below the RFID inspection unit is inspected.
Preferably, the RFID inspection unit of the RFID detection and separation device consists of a RFID reader to read the RFID tag.
Advantageously, the RFID inspection unit consists of the RFID reader mounted with an electronic shield to direct the electronic signals of the RFID reader onto the RFID tag immediately below the RFID inspection unit so as to only read this RFID tag.
Alternatively, the RFID inspection unit consists of the RFID reader mounted with a RFID signal deflector to direct the electronic signals of the RFID reader onto the RFID tag immediately below the RFID inspection unit so as to only read this RFID tag.
Alternatively, the RFID inspection unit consists of the RFID reader mounted with a RFID signal guide to guide the electronic signals of the RFID reader onto the RFID tag immediately below the RFID inspection unit so as to only read this RFID tag.
Preferably, the RFID separator of the RFID detection and separation device is positioned above the liner and in a separation mode is in an extended state so that as the RFID inlay reel with the RFID tags on it goes over the RFID separator, the RFID separator separates the RFID tags from the RFID inlay reel allowing the RFID tags to be dispensed onto the liner, thereby embedding the RFID tag onto the liner, to form RFID labels.
Preferably, the RFID separator for a RFID detection and separation device is positioned above the liner and upon detection of a defective RFID tag, the RFID detection and separation device goes into a non-separation mode whereby the microcontroller sends a signal to the RFID separator, causing it to retract and as the RFID separator is no longer in an extended state, the RFID inlay reel with the defective RFID tag on it round goes over the retracted RFID separator, the inlay reel forming a free loop, so that the defective RFID tag would not be dispensed onto the liner, and instead returned to the winding station.
More advantageously, upon detection by the RFID inspection unit of a defective RFID tag, the RFID detection and separation device goes into a non-separation mode, whereby the position of the defective RFID tag is recorded by the microcontroller, which continues to move the inlay reel with the defective RFID tag along until it reaches the edge of the RFID separator, the microcontroller sends a signal to a inlay reel brakes of the RFID Tensioning Unit so that it closes on the inlay reel and at the same time, the RFID separator retracts, and the RFID inlay forms a free loop around the retracted RFID separator, so that the RFID tag on the inlay reel is not dispensed onto the liner and instead returns to a winding station.
Preferably, the RFID separator is positioned above the liner so that after the defective RFID tag has been detected by the RFID inspection unit, and after the defective RFID tag has gone past the retracted RFID separator, the RFID detection and separation device goes back to its separation mode whereby the microcontroller sends a signal to the inlay reel brakes of the RFID Tensioning Unit to release the RFID inlay, and the RFID separator moves back to its normal extended position, and the RFID tags are moved forwards through the RFID detection and separation device to continue the RFID conversion process.
Preferably, the RFID separator for a RFID detection and separation device is a retractable knife edge.
Alternatively the RFID separator for a RFID detection and separation device is a retractable blade.
Preferably, the pair of inlay reel brakes of the RFID Tensioning Unit is in an opened position, when the RFID detection and separation device is in a separation mode, such that the RFID tags on the inlay reel are moved through the RFID inspection unit, and when a good RFID tag is detected by the RFID inspection unit, the inlay reel brakes remains open so that the inlay reel with the good RFID tag moves pass the RFID separator, to be dispensed onto the liner, to produce RFID labels.
Preferably the pair of inlay reel brakes of the RFID Tensioning Unit is in an opened position, when the RFID tags on the inlay reel are moved through the RFID inspection unit, and when a defective RFID tag is detected by the RFID inspection unit, the RFID detection and separation device goes into a non-separation mode, whereby the microcontroller closes the pair of inlay reel brakes together to stop movement of the inlay reel and at the same time, the microcontroller retracts the RFID separator, causing the RFID inlay to form a free loop around the retracted RFID separator, so that the RFID tag on the inlay reel is not dispensed onto the liner and instead returns to a winding station.
Advantageously the pair of inlay reel brakes of the RFID Tensioning Unit, after the defective RFID tag has gone past the retracted RFID separator, to the winding station, the RFID detection and separation device goes back to its separation mode, whereby the microcontroller sends a signal to the inlay reel brakes to open, the RFID inlay is then released, causing the next RFID tag on the inlay reel to moved through the RFID inspection unit, and the RFID separator moves back to its normal extended position, so that the RFID conversion process continues.
Preferably, the pair of inlay reel brakes of the RFID Tensioning Unit is a pair of clamping cylinders.
Alternatively, the pair of inlay reel brakes of the RFID Tensioning Unit is a pair of clamping discs.
A further object of the invention is a method to detect and separate defective RFID tags using a RFID detection and separation device and system for a RFID Batch conversion system, comprising the following steps:
Preferably, the method to detect and separate defective RFID tags includes the steps of inspecting a RFID tag as it goes under the home sensing unit, detecting a defective RFID tag, moving the RFID tag past the RFID separator which is then retracted, braking the forward movement of the inlay reel so as to form a free loop, releasing the inlay reel brakes so that the inlay reel can move the next RFID tag to be inspected, all of these steps being controlled by the microcontroller.
For a better understanding of the invention, its advantages, and the objects attained by its use, reference should now be made to the accompanying drawings. The accompanying drawings illustrate one or more embodiments of the invention and together with the description herein, serve to explain the workings and principles of the invention.
The preferred embodiment of the invention is described with reference to the attached drawings.
The RFID Conversion system has two reels mounted and fed into the system—an inlay reel 1 of RFID tags 7 and a reel of liner 10.
The RFID conversion system has the following components, as shown in
RFID Reel Unwinding Station 21
The incoming RFID inlay reel 1 will be loaded onto this reel unwinding station 21. The holding shaft is connected to a motor, which unwinds the RFID inlay reel 1 to the RFID Tensioning Station 4.
RFID Reel Tensioning Station 4
The RFID Reel Tensioning Station 4 consists of the dancer unit 22 and a pair of inlay reel brakes 3. The dancer unit 22 provides a constant and correct tension to the unwound RFID inlay reel 1 during the dispensing process of the RFID tags 7. If the RFID inlay reel 1 is unwound at a too fast rate, the RFID inlay reel 1 would break, interrupting the entire process The inlay reel brakes 3 isolate the tension from the RFID separator 9 when the RFID separator 9 retracts during non-separation mode.
The dancer unit 22 is pneumatically powered with precision pressure control to provide a desirable tension to the RFID inlay reel 1 throughout the conversion system. The tension of the RFID inlay reel 1 is controlled so that it is just sufficient to enable dispensing at the separator 9. Excessive tension can increase the possibility of breakage when the RFID inlay reel 1 is fed through the RFID separator 9 at high speed.
The RFID Reel tensioning unit 4 is therefore a very essential component of the entire process of separating the RFID tags 7 from the RFID inlay reel 1 and embedding the same onto the liner 10 to form RFID labels 8.
RFID Feeding Station 23
This station consists of one set of feeding rollers 23 located after the separator 9. These rollers 23 are driven by one servo motor and the feed length can be programmed to suit different RFID tags 7 and different RFID labels 8.
RFID Inspection 6, Positioning 5 and Separation 9 Station
This station consists of a RFID Positioning unit 5, a RFID inspection unit 6 and a RFID separator 9, a close up view of which is given in
RFID Positioning Unit 5
The RFID Positioning unit 5 utilises a vision system to check the position of the RFID tag 7 and it ensures that a RFID tag 7 is always accurately positioned with respect to the RFID separator 9 after each dispensing cycle. A vision system is used as it provides flexibility and reliability to cater to a wide variety of RFID tags 7.
The RFID tag 7 is fed through the RFID separator 9 at a pre-determined distance depending on the pitch of the RFID tag 7. After dispensing, the position of the subsequent RFID tag 7 might vary depending on the accuracy of the pitching. The vision system of the RFID Positioning unit 5 will capture the position of the next RFID tag 7 and feedback the amount of difference to the RFID feeding station 23. The feeding motor (with the dancer units of the RFID inlay reel tensioning unit 4) will adjust the RFID inlay reel 1 by either moving the inlay reel 1 forward or backward to correct the position of the RFID tag 7 being inspected, so that a RFID tag 7 is always accurately positioned with respect to the RFID separator 9.
RFID Inspection Unit 6
The RFID inspection unit 6 utilises an appropriate RFID reader (not shown in any of the drawings) to read the RFID tag 7 before the dispensing cycle. The position of the RFID reader is adjustable to suit different RFID tag 7 sizes. The RFID tag 7 is considered good only if the RFID reader could read the RFID tag 7. The close proximity of the RFID tags 7 causes a conventional RFID reader to elicit readings from not just the defective RFID tag 7 but the adjacent RFID tags 7, as well.
The RFID inspection unit 6 must therefore be constructed to read only one RFID tag 7 at a time in order to detect a defective RFID tag 7 properly and accurately. The RFID inspection unit 6 is therefore mounted with a RFID electronic shield (also not shown in any of the drawings) which allows the RFID reader to read the RFID tag 7 immediately below the inspection unit 6. The RFID electronic shield also prevents any electronic signal sent out by the RFID inspection unit 6 to go beyond the RFID tag 7 being inspected, to the RFID tag 7 before or after the RFID tag 7 being inspected. In this way, the RFID reader can accurately read the RFID tag 7 it is supposed to read and not include the surrounding ones. The reading of the RFID tag 7 by the RFID inspection unit 6 is synchronized with the speed of the feeding motor all of which is controlled by the microcontroller.
The RFID shield can take the form of a RFID signal deflector which deflects the RFID signals from going sideways and outwards and instead direct all RFID signals downwards, directly onto the RFID tag 7 to be inspected.
RFID Separator 9
The RFID separator 9 is positioned just above the liner 10 and is normally at the extended position. In the dispensing process as shown in
In operation, the RFID inspection and separation device remains in a separation mode wherein the good RFID tag 7 is separated and dispensed onto the liner 10. The RFID inspection and separation device goes into a non-separation mode whenever a defective RFID tag 7 is detected.
Winding Station 20
This winding station 20 utilizes an induction motor together with a dancer unit to wind up the empty RFID inlay reel 1 that feed out from the RFID Feeding Station 23.
Liner Unwinding Station 11
The incoming liner reel 1 will be loaded onto the Liner unwinding station 11. The reel 1 holding shaft is connected to a clutch and brake motor, which unwind the liner 10 to a dancer unit 22.
Punching Station 16
The Punching station 16 consists of a punching unit to punch a reference hole near to the edge of the liner 10. The punching unit is driven by a motor through a cam mechanism to achieve a high speed punching operation. The reference hole will be used to activate the dispensing process as well as to eliminate accumulative error on the feeding of the liner 10. Alternatively, the reference hole can also be replaced by printing coloured marks or magnetic marks.
Liner Feeding Station 14
The liner feeding station 14 consists of one set of feeding rollers driven by a servomotor to feed the liner 10 under the dispensing station. There are two sensors positioned accurately with respect to the punching station to sense the reference hole (made by the punching unit 16 at the punching station) on the liner 10. The first sensor is the dispensing sensor 12 to activate the dispensing of the RFID tag 7 and its position is dependent on the RFID position on the label 8. The second sensor is the pitch sensor 13 to check the feeding pitch of the liner 10 and its position is dependent on the label 8 length.
During feeding of the liner 10, once the dispensing sensor 12 senses the reference hole on the liner 10, the dispensing station will dispense to start the process of pasting a RFID tag 7 onto the liner 10 at the desired location. When the liner 10 is fed to the required pitch, the pitch sensor 13 will check the reference hole on the liner 10 before the punching station makes the reference holes on the liner 10.
Liner Buffer Station 15
The liner 10 pasted with non-defective RFID tag 7 will be fed to this Liner Buffer Station 15. Two limit sensors (not shown) are used to detect the buffer length of the liner 10. If the upper length limit is detected, an output signal will be given to the downstream machine to stop the operation. If the lower length limit is detected, the dispensing machine will stop the operation. The RFID labels 8 kept in the liner buffer station 15 are all non-defective RFID tags 7.
Microcontroller
In order to have the feeding of reels of RFID tags 7 (on the inlay reel 1) and liner synchronized, while each RFID tag 7 is detected and if found defective, not embedded onto the liner 10, information from each of the components in the detection and separation system and the RFID Conversion system are fed to a microcontroller (not shown in any of the drawings). In turn, the microcontroller sends out signals to each of the components so that the RFID tag 7 is positioned accurately before coming to the RFID dispensing station, and is positioned accurately at the RFID inspection unit 6 for detection of the RFID tag 7 immediately being checked for defect. The microcontroller also co-ordinates and synchronizes the entire production process including switching the detection and separation device from separation mode to non-separation mode and back.
The microcontroller is again an essential component of the entire process as it controls and co-ordinates the entire process of feeding the RFID tags 7, while feeding the liner 10, positioning the RFID tags 7 to be inspected and either separate the RFID tags 7 from the inlay reel 1 for embedding or discontinue the embedding if the RFID tag 7 is defective, all of which has to be carried out a relatively fast speed.
A description of the RFID Conversion system including a description of the detection and separation device is given below, with reference to
The Liner Feeding Station 14 consists of one set of feeding rollers driven by a servomotor to feed the liner 10. There are two sensors positioned with respect to the punching station to accurately sense the reference hole on the liner 10. The first sensor is the dispensing sensor 12 to activate the dispensing of the RFID tag 7 and its position is dependent on the RFID position on the label 8. The second sensor is the pitch sensor 13 to check the feeding pitch of the liner 10 and its position is dependent on the label 8 length.
Basically RFID tags 7 rejection in the detection and separation device installed in the RFID Conversion System involves 3 steps, which are explained in more detail with reference to
The liner 10 pasted with non-defective RFID tag 7 will be fed to the liner buffer station 15. Two limit sensors are used to detect the buffer length of the liner 10. If the upper length limit is detected, an output signal will be given to the downstream machine to stop the operation. If the lower length limit is detected, the dispensing machine will stop the operation.
The RFID label 8 kept in the liner buffer station 15 would now consists of all non-defective RFID labels 8, ready for shipment and for use. In this manner, all RFID labels 8 obtained by this process using the inspection and separation device are in good working order. The use of the inspection and separation device would ensure only non-defective RFID labels 8 are shipped out and used by end users, thereby reducing any further requirement for checking for damaged RFID labels 8 by end users. Much time and costs along the supply chain of RFID labels 8 is reduced by the use of the inspection and separation device.
As can be seen from the description given above, when RFID inspection unit 6 detects a bad RFID tag 7 on the RFID inlay 1, this particular RFID tag 7 will not be dispensed onto the liner 10. Instead it will remain on the RFID inlay reel 1 and eventually being fed back to the winding station 20. The winding station 20 would wind up the empty tape (including the defective RFID tags 7).
The RFID inspection unit 6 could also be a RFID sensor which checks whether the RFID is in working condition. The RFID inspection unit 6 could also be a RFID reader which reads test information contained therein and if the test information is read and verified, the RFID tag 7 would be taken as good.
The RFID reader (not shown) could be mounted with an electronic shield to direct the electronic signals of the RFID reader onto the RFID tag 7 immediately below the RFID inspection unit 6 so as to only read this RFID tag 7. Alternatively, the RFID reader could be mounted with a RFID signal deflector for the same purpose.
The pair of inlay reel brakes 3 of the RFID tensioning unit 4 could be a pair of clamping discs.
The pair of inlay reel brakes 3 of the RFID tensioning unit 4 could also be a pair of clamping cylinders.
The RFID Separation device 9 could be in the form of a retractable knife edge.
The RFID Separation device 9 could be in the form of a retractable blade.
In place of a reference hole being used to activate the dispensing process as well as to eliminate accumulative error on the feeding of the liner, the reference hole can also be a printing magnetic mark or a electronic dot.
While
Although an embodiment of the invention have been described, it should be apparent, however, that various modifications, rearrangements, substitutions alterations and adaptations to those embodiments may occur to persons skilled in the art with the attainment of some or all of the advantages of the present invention. Accordingly, it should be clearly understood that the present invention is not intended to be limited by the particular features and structures hereinbefore described and depicted in the accompanying drawings. It is therefore intended to cover all such modifications, alterations and adaptations without departing from the scope and spirit of the present invention as defined by the appended claims.
The invention will ensure defective RIFD tags are not converted into RFID labels and shipped to end users. End users would only receive RFID labels in good working condition, ready for use in the applications.
The RFID detection and separation system can be used on any batch system use to convert RFID tags into RFID labels. It can also be adapted for use on batch conversion systems like those of PCT/SG2004/00302.
