JP3194396U - Ultra-high frequency band (UHF) radio frequency identification (RFID) reader with aiming function - Google Patents

Abstract

An ultra-high frequency band radio frequency identification reader having an aiming function that can not only read an RFID tag quickly and accurately but also save power consumption. An ultra-high frequency band (UHF) radio frequency identification (RFID) reader having an aiming function is used to read an RF tag, and mainly includes an RF antenna and a controller. An aiming part 2021 is formed on the main body of the RF antenna 202. When the user wants to read the RFID tag, the user first aims the target 2021 of the RF antenna 202 to the RF tag at a remote location by a visual method, so that the RF antenna 202 can quickly and accurately read the RFID tag. Execute. Therefore, reading accuracy and efficiency can be improved. [Selection] Figure 2

Description

  The present invention relates to an ultra-high frequency band (UHF) radio frequency identification (RFID) reader having an aiming function, and in particular, an ultra-high frequency band having an aiming function capable of quickly achieving reading of an RF tag with an RF antenna having an aiming unit. (UHF) Radio Frequency Identification (RFID) reader.

  Radio frequency identification (RFID) is a technology widely applied in the field of contactless wireless communication. When implementing this, RFID is usually performed in a combination of at least one RFID reader and a plurality of RFID tags. RFID has the advantages of high data safety, reusability, good penetration, and fast reading speed, so it is gradually replacing traditional bar code identification and daily life like health care, logistic, personal identification etc. Has been used extensively in.

  FIG. 1 shows a conventional UHF RFID reader. The range of the RF antenna frequency band is 865 to 960 MHz, and the effective detection distance is 1 to 10 m. The purpose of this design is to extend the detection distance so as to facilitate operability and usability.

  However, since the radio wave radiated by the RF antenna is a directional radio wave, the farther away the radio wave is from the RF antenna, the more severe the radio wave becomes narrower. Therefore, if the user does not aim at the distant RFID tag 11 with the RF antenna, detection often fails. Therefore, it is common for the user to constantly change the position of the UHF RFID reader 10 in order to aim at the remote RFID tag 11. This often causes great inconvenience in the overall work. Further, the power of the UHF RFID reader 10 is rapidly consumed in the process of repeatedly transmitting and receiving radio waves.

  In view of the above problems and demands, the main object of the present invention is to provide an ultra-high frequency band radio frequency identification reader that has an aiming function that not only reads RFID tags quickly and accurately but also saves power consumption. It is to provide.

  In order to achieve the above object, the UHF RFID reader having the aiming function of the present invention includes an RF antenna and a controller, and the RF antenna is provided at the tip of the controller. In addition, an aiming portion is formed on the RF antenna body, and when a user wants to read an RFID tag in a remote place with a UHF RFID reader having the aiming function of the present invention, the aiming portion of the RF antenna is first moved by visual acuity. By aiming at the RFID tag, the line of sight of the user, the aiming part, and the RFID tag are aligned with one straight line. When the controller activates the RF antenna to emit radio waves, the controller can quickly detect the RFID tag at a remote location.

  The UHF RFID reader having the aiming function of the present invention enables quick aiming and accurate detection of the RFID tag, thus solving the problem of aiming at an RFID tag such as a prior art UHF RFID reader. In addition, the reading operation after aiming the RFID tag enables effective use of electric power.

  According to the UHF RFID reader having the aiming function of the present invention, since the aiming part is formed in the RF antenna main body, the user first aims the aiming part of the RF antenna to the RFID tag with the visual acuity, so that the user's line of sight The aiming unit and the RFID tag are aligned with a single straight line. When the controller activates the RF antenna to emit radio waves, the controller can quickly detect the RFID tag at a remote location. This enables quick aiming and accurate detection of the RFID tag, and the work of reading after aiming the RFID tag also enables effective use of power.

FIG. 1 is a perspective view of a conventional UHF RFID reader. FIG. 2 is a perspective view of the appearance of a UHF RFID reader having an aiming function according to the present invention. FIG. 3 is a block diagram of an electrical configuration of a UHF RFID reader having an aiming function according to the present invention. FIG. 4 is a schematic view of an implementation of a UHF RFID reader having an aiming function of the present invention. FIG. 5 is a schematic perspective view of the appearance of a UHF RFID reader having another aiming function according to the present invention.

  Hereinafter, the UHF RFID reader having the aiming function of the present invention will be described in more detail with reference to the drawings.

  2 is a perspective external view of a UHF RFID reader having an aiming function of the present invention; FIG. 3 is a block diagram of an electrical configuration of the UHF RFID reader having an aiming function of the present invention; FIG. 4 has an aiming function of the present invention. Schematic of implementation of UHF RFID reader; FIG. 5 is another schematic diagram of the appearance of a UHF RFID reader with the aiming function of the present invention.

  As shown in FIG. 2, the UHF RFID reader 20 having the aiming function of the present invention mainly includes a controller 201 and an RF antenna 202. Further, the main body of the RF antenna 202 has a through hole and is formed with an aiming part 2021 like a gun sight. Alternatively, the aiming unit 2021 may be a cross-shaped hole or a diamond-shaped hole, but the present invention is not limited thereto.

  Further, the RF antenna 202 is provided at one end of the controller 201 and is electrically connected to the controller 201 and is also connected in information. The controller 201 has a display screen 2014 and further includes at least one operation key 2016. Thus, when the user operates the key 2016, the correlation information is displayed on the display screen 2014. Therefore, when the controller 201 is operated by the user, the RF antenna 202 is driven to emit radio waves, thereby detecting the RFID tag at a remote location. The external appearance of the RF antenna 202 is preferably circular for general application, but may be polygonal or irregular.

  3 and 4, according to the UHF RFID reader 20 having the aiming function of the present invention, the controller 201 includes a microprocessor 2011, an RF signal processing unit 2012, a memory module 2013, a display screen 2014, , A power supply module 2015, an operation key 2016, and a directional light emitting element 2017 are provided. The RF antenna 202 is electrically coupled to the RF signal processing unit 2012. The RF signal processing unit 2012, the memory module 2013, the display screen 2014, the power supply module 2015, the operation key 2016, and the directional light emitting element 2017 are electrically coupled to the microprocessor 2011, respectively. The role of the RF antenna 202 is to transmit and receive wireless radio waves (that is, to receive the radio wave S2 when the radio wave S1 is transmitted). The RF signal processing unit 2012 is responsible for operating the RF antenna 202 to radiate radio waves. The power supply module 2015 provides power necessary for each module. After the RF antenna 202 transmits the radio wave S1, the RFID tag 21 is driven by the energy of the radio wave S1 and radiates the identification signal S2 in response to the radio wave S1. The identification signal S2 is received by the RF antenna 202, further processed by the RF signal processing unit 2012, and then transferred to the microprocessor 2011 so as to execute decoding. The decrypted information is stored in the memory module 2013 and also displayed on the display screen 2014 of the controller 201.

  4 and 3, when the user wants to read the RFID tag 21 at a remote place with the UHF RFID reader 20 having the aiming function of the present invention, the user simply grasps the controller 201 with his / her hand, The user's line of sight is aligned with the aiming unit 2021 of the RF antenna 202. Thereafter, the user's line of sight is further extended to the remote RFID tag 21 so that the line of sight, the aiming unit 2021 and the RFID tag 21 become a single visible straight line. Thus, the effect of aiming quickly at the RFID tag 21 at a remote place can be obtained. At this time, the user further operates the operation key 2016 of the controller 201 so that the controller 201 transmits the radio wave S1 via the RF antenna 202 (signal S1 in FIGS. 3 and 4). Thereby, quick aiming and accurate reading of the RFID tag 21 can be effectively achieved.

  As shown in FIG. 5, the RF antenna 202 is provided at the end of the controller 201, and the RF antenna 202 is also formed with an aiming part 2021. Further, the directional light emitting element 2017 (for example, a laser diode) is provided on the controller 201 so as to function as a direction indicating light source. When operating the controller 201 in a dark environment or at night, the user can quickly aim the RFID tag 21 through the directional light emitting element 2017.

  Based on the above, the UHF RFID reader having the aiming function of the present invention transmits the radio wave to the RFID tag via the RF antenna provided at the tip of the controller, and the identification signal is sent to the RFID antenna in response to the RFID tag. Receive via. This completes the reading process. The UHF RFID reader having the aiming function of the present invention is provided with an aiming unit in the RF antenna main body, so that even if the user operates the controller at a remote place, the remote target can be located at the aiming part before the RF antenna emits radio waves. The RFID tag can be accurately aimed at, so that the work of reading the RFID tag becomes more accurate. As will become apparent as described above, the UHF RFID reader with the aiming function of the present invention can aim the RFID tag quickly and accurately, so that the UHF RFID reader with the aiming function constantly operates. Is not necessary. In addition, unnecessary power consumption can be reduced. As can be seen by summarizing the above, the present invention has an aiming function that can reliably and quickly read the RFID tag and save power consumption if the operation is performed as described above. The objective of providing a UHF RFID reader can be achieved.

  However, the above description is a preferred embodiment of the present invention and does not limit the scope of the present invention. All changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

According to the present invention, since the sighting part is formed on the RF antenna, even if the RFID tag is located at a remote place, the RF antenna can quickly and accurately aim at the RFID tag and immediately transmit the radio wave to the RFID tag. Since it can radiate, the RFID tag can be detected immediately. In addition, since it is unnecessary to always operate the UHF RFID reader, unnecessary power consumption can be reduced.

20: UHF RFID reader 201: Controller 202: RF antenna 2021: Aiming unit 2011: Microprocessor 2012: RF signal processing unit 2013: Memory module 2014: Display screen 2015: Power supply module 2016: Operation key 2017: Directional light emitting element 21: RFID tag S1: transmitted radio wave S2: received radio wave

Claims (3)

An ultra-high frequency (UHF) radio frequency identification (RFID) reader with an aiming function used to read radio frequency identification (RFID) tags,
A controller having a microprocessor;
An RF antenna assembled at one end of the controller, having an aiming unit, electrically connected to the microprocessor and also coupled informationally;
The user grips the controller by hand, and aligns the line of sight with the sighting part of the RF antenna so that the line of sight, the sighting part, and the radio frequency identification tag are a single visible straight line. Thereafter, by operating the controller, the microprocessor drives the RF antenna to radiate a radio wave in the UHF band to the radio frequency identification tag, and the identification signal responded from the radio frequency identification tag The ultra-high frequency band (UHF) radio frequency identification (RFID) reader having an aiming function characterized in that the function of quickly aiming at the radio frequency identification tag is achieved by receiving   A directional light emitting element provided on the controller and functioning as a direction indicating light source is further provided, so that the radio frequency identification tag can be quickly aimed through the directional light emitting element even in a dark environment or at night. The ultra-high frequency band (UHF) radio frequency identification (RFID) reader with the aiming function according to claim 1.   3. The ultra-high frequency band (UHF) radio frequency identification (RFID) having an aiming function according to claim 1, wherein the aiming portion is a circular hole, a cross-shaped hole, or a diamond-shaped hole. )leader.

Images