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RFID reader and reader supporting simo antenna and data sending and receiving method

A data transmission method and reader technology, applied in the electronic field, can solve the problems of inability to expand communication bandwidth and capacity, inability to read and write electronic tags, and inefficient polling reading methods, so as to improve the probability of successful communication, increase the Quantity, the effect of improving the success rate and quality of sending and receiving

Active Publication Date: 2016-08-31
GUANGDONG POWER GRID CO LTD DONGGUAN POWER SUPPLY BUREAU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. There may be vacant areas between the coverage areas of each antenna, and the electronic tags in the vacant areas cannot be read and written; Third, the polling reading method is inefficient. Although it can expand the communication range, it cannot expand the communication bandwidth and capacity.

Method used

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  • RFID reader and reader supporting simo antenna and data sending and receiving method
  • RFID reader and reader supporting simo antenna and data sending and receiving method
  • RFID reader and reader supporting simo antenna and data sending and receiving method

Examples

Experimental program
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Effect test

Embodiment 1

[0033] see figure 1 , this embodiment provides an RFID reader-writer supporting a SIMO antenna, which mainly includes: a core processor 101 and at least one antenna branch 102 . Reference numerals 112 and 122 designate further antenna branches. The antenna branch 102 includes: a SIMO antenna 1021 for diversity transmission and reception of electromagnetic signals; a power amplifier 1022 for converting digital signals into electromagnetic signals; a pre-processor 1023 for phase and time synchronization adjustment, among others. The SIMO antenna 1021, the power amplifier 1022, and the pre-processor 1023 are connected in sequence.

[0034] In this embodiment, the core processor 101 is electrically connected to the pre-processor 1023 in the antenna branch 102, and is used to encapsulate the request information into a data packet according to the preset communication frame format when sending the request information to the electronic tag ; and when receiving the response informat...

Embodiment 2

[0043] see image 3 , the present embodiment provides a data transmission method of an RFID reader-writer, which is suitable for the RFID reader-writer supporting the SIMO antenna described in Embodiment 1, and its main steps include:

[0044] Step 301: A. The core processor encapsulates the data request information into a data packet according to a preset communication frame format, and sends the data packet to the pre-processor in at least one antenna branch.

[0045] In this embodiment, the core processor encapsulates the request information to be sent into a data packet according to a certain communication frame format, and then sends the data packet to the pre-processor in at least one antenna branch. Each antenna branch is provided with a SIMO antenna, a power amplifier and a pre-processor. Wherein, the SIMO antenna, the power amplifier, the pre-processor, and the core processor are electrically connected in sequence.

[0046] Step 302: B, each pre-processor adjusts an...

Embodiment 3

[0060] see Figure 5 , the present embodiment provides a data receiving method of an RFID reader-writer, which is applicable to the RFID reader-writer supporting the SIMO antenna described in Embodiment 1, and its main steps include:

[0061] Step 501: A. The SIMO antenna in at least one antenna branch receives the response information sent by at least one electronic tag.

[0062] In this embodiment, the RFID reader includes a core processor and at least one antenna branch. Each antenna branch includes: a SIMO antenna, a power amplifier, and a pre-processor. When receiving the response information, the SIMO antennas in each antenna branch receive the response information sent by the electronic tag and pass it to the power amplifier.

[0063] Step 502: B. The pre-processor in the antenna branch adjusts and synchronizes the phase and time of each reply message in each pre-processor according to the clock source of the core processor and the time synchronization command sent by...

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PUM

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Abstract

The invention relates to the field of electronics, and discloses an RFID (Radio Frequency Identification) reader-writer supporting SIMO (Single Input Multiple Output) antennas, and a data sending and receiving method. The RFID reader-writer mainly comprises at least one antenna branch and a core processor, wherein the antenna branches comprise the SIMO antennas used for delivering, sending and receiving electromagnetic signals, power amplifiers used for converting digital signals into the electromagnetic signals and preposition processors used for synchronously adjusting a phase and the time; the SIMO antennas, the power amplifiers and the preposition processors are connected sequentially; and the core processor is electrically connected with the preposition processors in the antenna branches, is used for packaging request information into data packets according to a preset communication frame format, and analyzes and processes response information transmitted by the preposition processors. With the adoption of the technical scheme, a sending and receiving success rate of communication signals can be increased; the quality of the communication signals can be improved; a vacant region and a repeated region are avoided; and the communication bandwidth and capacity are expanded.

Description

technical field [0001] The invention relates to the electronic field, in particular to an RFID reader-writer supporting a SIMO antenna and a data sending and receiving method. Background technique [0002] With the development and application of radio frequency identification technology (RFID) in the Internet of Things, the application of readers is becoming more and more extensive. The reader is a device that reads or writes information data to RFID electronic tags. In order to extend the data connection line of the antenna and expand the coverage of the reader, a multi-antenna reader emerges as the times require. Readers that support multiple antennas mainly read and write RFID electronic tags within multiple coverage areas in a certain order and in a polling manner. [0003] In the process of carrying out the research of the present invention, the inventor finds that the prior art has the following problems: [0004] 1. There may be vacant areas between the coverage ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K17/00
Inventor 罗金满陈华军郭晓斌蒙家晓
Owner GUANGDONG POWER GRID CO LTD DONGGUAN POWER SUPPLY BUREAU