Description:

[0001] The present disclosure relates, in general, to manufacturing of RFID tags in different models and configurations based on the frequency of operation and end results. This present disclosure, in particular, relates to a design and development of a new UHF RFID BAP tag with built-in self-responsive features like LED and Buzzer which are activated when a particular tag is triggered.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present subject matter. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed subject matter, or that any publication specifically or implicitly referenced is prior art.
[0003] When the RFID systems are used for tracking and locating the materials in stores/yards, the RFID tags will be assigned to various material with the relevant data written to it. When a RFID reader reads the RFID tags, it captures the data written into the RFID tags and displays for the user’s information and use.
[0004] But when a search operation is performed in a yard or store to search a particular RFID tag from a pool of RFID tagged material, it is always difficult to locate the correct item/RFID tag being searched for as all tags look alike.
[0005] Most RFID tags in prior art are limited to responding to RFID Hand Held Reader in form of response signal only for example US9542638B2 which describes an integrated micro chip, method of integrating a microchip, and microchip integration system. A microchip such as a micro RFID chip or integrated passive device (IPD) is electrostatically transferred and bonded to a conductive pattern including a line break.
[0006] US20110285511 describes an Integrated Circuit (IC) for an RFID tag includes two electrically isolated antenna ports for connecting to two antennas, with each antenna port configured to operate at a different frequency range and/or with a different communications protocol.
[0007] US20110074582 describes an alarming electronic article surveillance (“EAS”) tag for securing an item of merchandise includes an EAS sensor, a radio frequency identification (“RFID”) logic block, an alarm transducer, and an alarming tag processor.
[0008] Therefore, there is a need for a unique RFID tag working in UHF range with built-in self-responsive audio and visual features.

OBJECTS OF THE DISCLOSURE
[0009] Some of the objects of the present disclosure, which at least one embodiment herein satisfy, are listed hereinbelow.
[0010] An object of the present disclosure is to design an Ultra High Frequency (UHF) RFID Battery Assisted Passive (BAP) tag which will automatically respond in form of an audio (buzzer) and visual indication (LED) signals when it is triggered by any UHF RFID Hand Held Reader.

SUMMARY
[0011] This summary is provided to introduce concepts related to design an Ultra High Frequency (UHF) RFID Battery Assisted Passive (BAP) tag. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
[0012] The present disclosure relates to a unique design of RFID tag which will respond by itself, out of a pool of tags, in the form of an audio (buzzer) and visual indication (LED) signals when it is called by a RFID reader.
[0013] Further, the present disclosure relates to a Battery Assisted Passive (BAP) Radio Frequency Identification (RFID) tag [8, 9] working in Ultra High Frequency (UHF) range. The BAP-RFID tag includes a printed circuit board (PCB) mounted antenna [1]; RFID integrated circuit (IC) [2]; low-power operational amplifier [3] used to boost the RFID IC [2]; voltage regulator [4]; power source [5] to provide power to the low-power operational amplifier [3] and the RFID IC [2]; and buzzer [6] and LED [7] which switches-on when the BAP-RFID tag [8, 9] is called by a UHF RFID handheld reader [10].
[0014] In an aspect, the PCB mounted antenna [1] is specially designed to extract maximum power from the UHF RFID handheld reader [10] to get maximum read range.
[0015] In an aspect, the RFID IC [2] is a Class-3 Generation-2 IC that is compliant with ISO/IEC 18000-63, ISO/IEC 18000-64 (TOTAL), and EPC Class-1 Generation-2.
[0016] In an aspect, the voltage regulator [4] is used to stabilize the power source [5] to the RFID IC [2].
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example, and simply illustrates certain selected embodiments of devices, systems, and methods that are consistent with the subject matter as claimed herein, wherein:
[0018] FIG. 1 illustrates a block diagram of RFID tag;
[0019] FIG. 2 illustrates a block diagram of UHF RFID handheld reader and RFID tag communication; and
[0020] FIG. 3 illustrates a PCB layout of the RFID.

DETAILED DESCRIPTION
[0021] The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the accompanying drawings. It should be noted that the embodiments are described herein in such details as to clearly communicate the disclosure. However, the amount of details provided herein is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0022] It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof.
[0023] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof.
[0024] It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
[0025] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
[0026] Embodiments explained herein pertain to a Battery Assisted Passive RFID tags, working in Ultra High Frequency (UHF) range with built-in LED and buzzer for self-responsive function. The tag consists of a PCB mounted antenna [1], RFID IC [2], Low-Power Operational Amplifier [3], Voltage Regulator [4], power source [5], buzzer [6], LED [7].
[0027] In the embodiment of the present disclosure, the tag working frequency is 865-868 MHz which is a license free frequency in for India under UHF range. The tag falls under BAP (Battery Assisted Passive) tag category of RFID tags. PCB mounted antenna [1] is specially designed to extract maximum power from UHF RFID Hand Held Reader [10] in turn maximizing the read range.
[0028] In the embodiment of the present disclosure, if there are number of tags in a particular area and it is required to identify one particular RFID tag [8], then as soon as an UHF RFID Hand Held Reader [10] sends RF signal to a particular RFID tag, the signal is detected by all the RFID tags [8,9] in the region. The RF signal contains the Tag ID of that particular RFID Tag [8]. Only the RFID tag with that particular ID will responds back to the UHF RFID Hand Held Reader [10] in form of a return signal to the UHF RFID Hand Held Reader [10].The RFID tag [8] also switches on its buzzer [6] and LED [7] so that the RFID tag can be easily identified.
[0029] In the embodiment of the present disclosure the RFID Tag consists of an RFID IC [2] which is a Class-3 Generation-2 IC that is compliant with ISO/IEC 18000-63, ISO/IEC 18000-64 (TOTAL), and EPC Class-1 Generation-2.
[0030] In the embodiment of the present disclosure the RFID Tag consists of a low power operational amplifier [3] which is used to boost the RFID IC [2] power to drive Buzzer [6] and LED [7].
[0031] In the embodiment of the present disclosure the RFID Tag consists of a voltage regulator [4] which is used to stabilize the input power source to the RFID IC [2].
[0032] In the embodiment of the present disclosure the RFID Tag consists of a voltage source [5] which is used to provide power to low power operational amplifier [3] and RFID IC [2], as the RFID tag works under BAP mode.
[0033] In the embodiment of the present disclosure the RFID Tag consists of a Buzzer [6] and LED [7] which switches on when the RFID Tag [8] is triggered by UHF RFID Hand Held Reader [10] so that the RFID tag [8] can be easily identified.
[0034] It can be appreciated by those skilled in the art that all the components or elements of the device/machine proposed herein have been hardened before utilizing of the same.
[0035] Further, it will be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described or shown herein, embody the principles of the invention and are included within its scope.
[0036] Furthermore, all examples recited herein are principally intended expressly to be only for pedagogical purposes to aid the reader in understanding the principles of the invention and the concepts contributed by the inventor(s) to furthering the art and are to be construed as being without limitation to such specifically recited examples and conditions. Also, the various embodiments described herein are not necessarily mutually exclusive, as some embodiments can be combined with one or more other embodiments to form new embodiments.
[0037] The above description does not provide specific details of the manufacture or design of the various components. Those of skill in the art are familiar with such details, and unless departures from those techniques are set out, techniques, known, related art or later developed designs and materials should be employed. Those in the art are capable of choosing suitable manufacturing and design details.
[0038] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. It will be appreciated that several of the above-disclosed and other features and functions, or alternatives thereof, may be combined into other systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without departing from the scope of the present disclosure as encompassed by the following claims.
[0039] The claims, as originally presented and as they may be amended, encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein, including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants/patentees and others.
[0040] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

We claim:

1. A Battery Assisted Passive (BAP) Radio Frequency Identification (RFID) tag [8, 9] working in Ultra High Frequency (UHF) range, the BAP-RFID tag comprising:
a printed circuit board (PCB) mounted antenna [1];
RFID integrated circuit (IC) [2];
low-power operational amplifier [3] used to boost the RFID IC [2];
voltage regulator [4];
power source [5] to provide power to the low-power operational amplifier [3] and the RFID IC [2]; and
buzzer [6] and LED [7] which switches-on when the BAP-RFID tag [8, 9] is called by a UHF RFID handheld reader [10].

2. The BAP-RFID tag [8, 9] as claimed in claim 1, wherein the PCB mounted antenna [1] is specially designed to extract maximum power from the UHF RFID handheld reader [10] to get maximum read range.

3. The BAP-RFID tag [8, 9] as claimed in claim 1, wherein the RFID IC [2] is a Class-3 Generation-2 IC that is compliant with ISO/IEC 18000-63, ISO/IEC 18000-64 (TOTAL), and EPC Class-1 Generation-2.

4. The BAP-RFID tag [8, 9] as claimed in claim 1, wherein the voltage regulator [4] is used to stabilize the power source [5] to the RFID IC [2].