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An RFID multi-tag identification system and method in a closed metal environment

A technology of RFID tags and identification systems, which is applied in the directions of electromagnetic radiation induction, instruments, and induction record carriers, etc., can solve the problems of RFID card reader processing blockage, increase the transmission power of RFID tag reading rate, and invalidation of collision algorithm, etc., and achieve reduction Effects of misread rate and misread rate, elimination of reading blind spots, and elimination of transmission blind spots

Active Publication Date: 2018-07-24
深圳市利谱信息技术有限公司
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Problems solved by technology

In addition, since the multiple reflections of electromagnetic waves will cause problems such as RFID card reader processing blockage and collision algorithm failure, it is not possible to increase the reading rate of RFID tags simply by increasing the transmission power of the antenna.

Method used

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  • An RFID multi-tag identification system and method in a closed metal environment
  • An RFID multi-tag identification system and method in a closed metal environment
  • An RFID multi-tag identification system and method in a closed metal environment

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0040] According to one aspect of the present invention, a kind of RFID multi-tag identification system under the airtight metal environment is proposed, and described system is usually installed in the metal airtight equipment, and the cabinet door of this metal airtight equipment is equipped with locking device, such as password lock, so The above system includes a control module, RFID reader, UHF antenna group and multiple RFID tags, among which:

[0041] The control module is connected with the RFID reader and the locking device of the metal airtight equipment, and at the same time connected with the remote server through a wired or wireless connection, and is used for identification and authentication of user identity...

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Abstract

The invention discloses a system and a method for identifying multiple RFID tags in a sealed metal environment. The system comprises a control module and an RFID reader-writer, wherein the control module is connected with the RFID reader-writer, a locking apparatus of a sealed metal device and a remote server, and is used for user identity recognition and authentication, RFID tag registration and management, and remote server information transmission and reception; the RFID reader-writer is connected with the control module and an UHF antenna group, and is used for blind area monitoring, UHF antenna time division switching, RFID tag collision detection and RFID tag identification; the UHF antenna group comprises two or more UHF antennas; each UHF antenna is connected with the RFID reader-writer; and the RFID tags are attached to to-be-managed articles. According to the system and the method, the design of the antennas reliably working in the sealed metal environment is realized, the sensitivity of the RFID tags to the environment and the mutual interference of short-distance adjacent tags are overcome, the difficult problem in static and effective identification of densely stacked articles in a sealed metal space is solved, and the misreading rate and the missing reading rate of the RFID tags are reduced as far as possible.

Description

technical field [0001] The invention belongs to the technical field of article management and information security, and is especially suitable for RFID multi-tag identification in a closed metal environment. The invention can realize reliable identification when a reader and multiple RFID tags are placed in a closed metal environment. Background technique [0002] In recent years, the rapid development of RFID radio frequency identification technology has attracted great attention from the industry, and is recognized as one of the most promising information technologies in this century. RFID technology has been widely used in industry, logistics and other fields. However, there are still some problems in the identification of RFID multi-tags in a closed metal environment. [0003] RFID is extremely susceptible to interference from the external environment. In a closed metal environment, the impedance matching, bandwidth, radiation efficiency, and radiation pattern of the tag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10G06K17/00
CPCG06K7/10356G06K17/00
Inventor 王勇杨旭东黄自贺
Owner 深圳市利谱信息技术有限公司
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