Desktop type RFID reader-writer

Abstract

The utility model discloses a desktop type RFID reader-writer, which comprises a base structure, and an antenna module, an interface module and a read-write module which are sequentially and fixedly connected on the base structure through fixing columns, the base structure is respectively provided with positioning holes with different calibers, an upper cover structure is provided with the fixing columns, and the antenna module, the interface module and the read-write module are fixedly connected on the upper cover structure through the fixing columns. The fixing columns penetrate through positioning holes formed in the base structure and are used for fixing the upper cover structure and all the modules to the base structure. The desktop type RFID reader-writer is provided with the antenna, the read-write module and the interface module, a radio frequency signal with a set frequency is sent out through the antenna module, and induction current is generated by utilizing the radio frequency signal and space coupling transmission characteristics, so that the energy of an FRID tag is activated. The reader-writer sends out or receives the codes, automatically demodulates and decodes the codes, and transmits the information to the computer for processing; the RFID tag data may be initialized or read.

Description

Technical Field

[0001] The utility model relates to the technical field of readers and writers, and more specifically to a desktop RFID reader and writer. Background Art

[0002] RFID is a wireless radio frequency identification technology that uses the transmission characteristics of radio frequency signals coupled with space and radar reflection to realize automatic identification of the identified object. RFID technology can read or write data without contact, and has the advantages of high speed, long distance, and anti-interference. The application scenarios of the ultra-high frequency RFID market are quite broad. It has the advantages of being able to read multiple tags at a time, long identification distance, fast data transmission speed, high reliability and life, and tolerance to harsh outdoor environments. It can be used in asset management, production line management, supply chain management, warehousing, and anti-counterfeiting and traceability of various items (such as tobacco, alcohol, medicine, etc.).

[0003] Currently, existing readers and writers all use large antennas and large read / write modules, which makes the structure more complex, has more components, and is more prone to failure. In addition, most of them use all-plastic materials for the shell, which is very easy to wear.

[0004] Therefore, how to provide a desktop RFID reader with a built-in gain PCB antenna, UHF high-power module, and greatly increased wear resistance of the material, as well as support for initializing the writing of tag data, support for active uploading of task data in the configuration card, and support for multiple operating frequencies is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, the utility model provides a desktop RFID reader / writer which is more convenient to install, beautiful and wear-resistant, has high integration, low power consumption and is easy to use.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model is a desktop RFID reader, characterized in that it comprises: a base structure and an antenna module, an interface module and a reader / writer module which are fixedly connected to the base structure through fixing columns in sequence, the base structure is respectively provided with positioning holes of different calibers, the upper cover structure is provided with fixing columns, the fixing columns penetrate the positioning holes provided on the base structure, and are used to fix the upper cover structure and each module on the base structure.

[0008] Furthermore, the base structure is a circular three-dimensional structure, and a card slot is provided on the inner side of the base structure.

[0009] Furthermore, the positioning holes of different diameters provided on the base structure include positioning holes at four corners for fixing the overall structure and positioning holes provided on each module.

[0010] Furthermore, the fixing column is made of a knurled copper column.

[0011] Furthermore, the antenna module fixedly connected to the base structure is a gain PCB antenna.

[0012] Furthermore, the interface module fixedly connected to the base structure is an SLD6010 interface board.

[0013] Furthermore, the read / write module fixedly connected to the base structure is a SQM5400V2 UHF RFID read / write module.

[0014] Furthermore, a piece of organic glass cover is fixedly installed on the upper surface of the upper cover structure to increase the aesthetics and wear resistance.

[0015] Through the above technical solution, it can be known that compared with the prior art, the desktop RFID reader of the utility model is equipped with an antenna, a read / write module and an interface module, and the antenna module sends out a radio frequency signal with a set frequency, and uses the radio frequency signal and the spatial coupling transmission characteristics to generate an induced current so that the energy of the RFID tag is activated. The reader sends or receives a code to automatically demodulate and decode it, and then transmits the information to the computer for processing; it can initialize or read RFID tag data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 The accompanying drawing is a schematic diagram of the base structure of the utility model.

[0018] Figure 2 The accompanying drawing is a schematic diagram of the upper cover structure of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model discloses a desktop RFID reader / writer, comprising: a base structure 1 and an antenna module 2, an interface module 3 and a reader / writer module 4 which are fixedly connected to the base structure 1 through fixing columns 5 in sequence, the base structure 1 is provided with positioning holes 6 of different calibers, an upper cover structure 7 is provided with fixing columns 5, the fixing columns 5 pass through the positioning holes 6 provided on the base structure 1, and are used to fix the upper cover structure 7 and each module on the base structure 1.

[0021] The base structure 1 is a circular three-dimensional structure. A card slot is provided on the inner side of the base structure 1. The card slot is connected to a buckle provided on the upper cover structure 7 to ensure a stable connection between the base structure and the upper cover. The different caliber positioning holes 6 opened on the base structure 1 include positioning holes at the four corners for fixing the overall structure and positioning holes set on each module.

[0022] The fixing column 5 is made of a knurled copper column, which has excellent physical properties, precise size control, and high-quality surface treatment, and is an important material in the supporting structure.

[0023] The antenna module 2 fixedly connected to the base structure 1 is a gain PCB antenna. The PCB antenna, also known as a printed circuit board antenna, is an antenna form in which the antenna is directly printed on a PCB. It plays an important role in modern wireless communication devices, especially in mobile devices, Internet of Things devices and wireless sensor networks, and is widely used because of its compactness, lightness and low cost. The working principle of the PCB antenna is based on the electromagnetic field theory. On the PCB board, a specific metal conductor pattern is formed by etching or adding conductive materials (such as copper), and these patterns constitute the radiation and receiving structure of the antenna. When the antenna is connected to a radio transmitting or receiving device, the device generates radio frequency currents, which flow on the antenna conductor and generate changing electric and magnetic fields. These electric and magnetic fields radiate to the surrounding space to form electromagnetic waves, thereby realizing the transmission of wireless signals.

[0024] The interface module 3 fixedly connected to the base structure 1 is an SLD6010 interface board. SLD6010 is a debugging board that is convenient for testing RF modules and assembling the whole machine. The board can be directly connected to various modules and provide a type-c communication interface. Based on the board, the performance of the RF module can be easily evaluated, and it can also be made into a fixed reader with a shell. It has a compact structure, is easy to install, has stable performance, and is suitable for various industrial applications.

[0025] The reader / writer module 4 fixedly connected to the base structure 1 is a SQM5400V2 UHF RFID reader / writer module, which adopts an advanced RFID-specific radio frequency chip design and supports a radio frequency output of up to 27dBm. The module has a small size, low power consumption, and strong anti-interference ability.

[0026] A piece of organic glass cover is fixedly mounted on the upper surface of the upper cover structure 7, which is both aesthetically pleasing and increases wear resistance, making the reader more robust and having a longer service life.

[0027] When using, the user needs to ensure that the RFID reader is properly placed on the desktop and remains stable. At the same time, connect the RFID reader to a computer or other data processing device through an appropriate interface (such as USB, serial port or network interface). Secondly, check whether the connection is firm and make sure that the required driver or software has been successfully installed. Then configure the reader: Use relevant configuration software or tools to set the parameters of the reader, such as operating frequency, output power, reading range, etc. These settings will affect the communication effect between the reader and the tag. According to the needs of the application scenario, adjust the configuration of the reader to achieve optimal performance. Finally, place the RFID tag: Place the RFID tag to be read or written in the sensing area of ​​the reader. Ensure that the orientation and distance of the tag are appropriate to obtain the best reading effect.

[0028] Note: During use, please avoid soaking the reader and the connecting cable in water to avoid damaging the device. Do not change the default settings of the reader at will to avoid connection failure or other problems. If the reader is not used for a long time, it is recommended to disconnect the power supply to save energy and extend the life of the device.

[0029] The utility model is a desktop RFID reader / writer with built-in antenna module, read / write module and interface module, which is positioned in applications requiring close-range reading, general reading speed, general anti-collision performance, etc., and has a low failure rate. It is very suitable for card issuance applications and close-range reading in various application fields such as supply chain management and asset management.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A desktop RFID reader, characterized in that: include: A base structure (1) and an antenna module (2), an interface module (3) and a read / write module (4) which are fixedly connected to the base structure (1) in sequence via fixing columns (5); the base structure (1) is provided with positioning holes (6) of different calibers; an upper cover structure (7) is provided with fixing columns (5); the fixing columns (5) penetrate the positioning holes (6) provided on the base structure (1) and are used to fix the upper cover structure (7) and each module on the base structure (1).

2. A desktop RFID reader according to claim 1, characterized in that: The base structure (1) is a circular three-dimensional structure, and a card slot is provided on the inner side of the base structure (1).

3. A desktop RFID reader-writer according to claim 1 or 2, characterized in that: The positioning holes (6) of different diameters provided on the base structure (1) include positioning holes at four corners for fixing the overall structure and positioning holes provided on each module.

4. A desktop RFID reader-writer according to claim 1, characterized in that: The material of the fixing column (5) is a knurled copper column.

5. A desktop RFID reader-writer according to claim 1, characterized in that: The antenna module (2) fixedly connected to the base structure (1) is a gain PCB antenna.

6. A desktop RFID reader-writer according to claim 1, characterized in that: The interface module (3) fixedly connected to the base structure (1) is an SLD6010 interface board.

7. A desktop RFID reader-writer according to claim 1, characterized in that: The read / write module (4) fixedly connected to the base structure (1) is a SQM5400V2 UHF RFID read / write module.

8. The desktop RFID reader according to claim 1, characterized in that: A piece of organic glass cover is fixedly mounted on the upper surface of the upper cover structure (7) to increase the aesthetics and wear resistance.

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