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Circular polarization multi-antenna system used in field of ultrahigh frequency RFID access control management

A multi-antenna system and ultra-high frequency technology, applied in the field of wireless communication, can solve the problem that the label cannot be read completely and accurately

Inactive Publication Date: 2011-06-01
THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to meet the identification and management requirements of the existing RFID technology in the field of access control management for the free passage of personnel, and at the same time overcome the defect that the tags worn by the managed personnel cannot be completely and accurately read, and provide a UHF RFID access control Circularly polarized, multi-antenna systems in the management field

Method used

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  • Circular polarization multi-antenna system used in field of ultrahigh frequency RFID access control management
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  • Circular polarization multi-antenna system used in field of ultrahigh frequency RFID access control management

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Embodiment Construction

[0012] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings: this implementation is implemented under the premise of the technical solution of the present invention, and detailed implementation has been provided, but the protection scope of the present invention is not limited to the following examples.

[0013] Such as figure 1 As shown, the present embodiment includes: a passage door radome 1 , an entry passage door antenna array 2 , and an exit passage door antenna array 3 . The access door antenna array 2 and the access door antenna array 3 are fixed on the inner wall of the access door radome 1 and form an angle of 45 degrees with the horizontal direction.

[0014] Such as figure 1 The antenna array 2 of the access door is connected to the reader through the radio frequency line, and the identification and management of the personnel entering the channel are carried out through the main control machin...

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Abstract

The invention belongs to the wireless communication field and specifically relates to a circular polarization multi-antenna system used in the field of the ultrahigh frequency RFID access control management. The radio frequency identification technology applied to the access control management requires an RFID reader / writer to possess the properties of high efficiency and non-blind area in reading / writing labels carried by people who pass through the gate. Antennae act as the reception and emission terminal equipment of the RFID reader / writer and the performance index of the antenna is the dominating factor in influencing the reading / writing performance of the RFID reader / writer. Therefore, the invention designs a circular polarization multi-antenna system used in the access control management for the entrance and leaving in some important conferences to reach the goal of non-contacting and high-efficient management of the RFID system on attendants.

Description

technical field [0001] The invention belongs to the field of wireless communication, in particular to a circular polarization and multi-antenna system used in the field of ultra-high frequency RFID access control management. Background technique [0002] The Chinese name of Radio Frequency Identification (RFID) is radio frequency identification technology. The radio frequency identification reader processes a large amount of relevant information carried by the tags on the identified objects through the communication control machine, and establishes a database in the control background in the form of network transmission to realize the management function of "socialized information resources" such as people and objects. Since the radio frequency identification (RFID) technology laid its theoretical foundation in 1948, its original basic theory and basic technology have been very mature. However, with the popularization of Internet technology in recent years, logistics, commer...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q1/22G06K7/10G07C9/00
Inventor 何蔚黄银龙孙伟华
Owner THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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