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Information encoding method, method and device for transmitting information from reader-writer to label

A technology of information encoding and reader-writer, which is applied in the field of communication to achieve the effect of low bit error rate

Active Publication Date: 2011-07-20
XIDIAN UNIV +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0008] The embodiment of the present invention provides an information encoding method, a method and a device for transmitting information from a reader to a tag, so as to solve the energy problem of the tag

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  • Information encoding method, method and device for transmitting information from reader-writer to label
  • Information encoding method, method and device for transmitting information from reader-writer to label
  • Information encoding method, method and device for transmitting information from reader-writer to label

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0031] figure 1 For a flowchart of an information encoding method provided by an embodiment of the present invention, please refer to figure 1 , the method includes:

[0032] Step 101: Obtain source data;

[0033] Step 102: Encode the source data according to Step 1021-Step 1024:

[0034] Step 1021: use a high-level pulse of unit time length to represent symbol 1, and use a unit time-length low-level pulse to represent symbol 0;

[0035] Step 1022: use two symbols 10 to represent the binary number 0 in the source data;

[0036] Step 1023: When...

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Abstract

The embodiment of the invention provides an information encoding method, a method and a device for transmitting information from a reader-writer to a label. The information encoding method comprises the steps of: acquiring information source data, and encoding the information source data according to the following modes of: using a high-level pulse with a unit time duration to represent a code element 1 and using a low-level pulse with the unit time duration to represent a code element 0; using the two code elements 1 and 0 to represent a binary number 0 in the information source data; when an individual binary number 1 exists in the information source data, using the two code elements 1 and 1 to represent the binary number 1; and when the continuous binary numbers 1 exist in the information source data, using the two code elements 1 and 1 to represent the binary numbers 1 in odd bits and using the two code elements 0 and 1 to represent the binary numbers 1 in even bits. Compared witha mode of performing information transmission by using Manchester encoding and pulse interval encoding (PIE), by the method and the device provided by the embodiment of the invention which are used in a link from the reader-writer and the label of a radio frequency identification (RFID) system, more energy can be provided for the label, and an error rate is lower.

Description

technical field [0001] The invention relates to the communication field, in particular to an information encoding method, a method and a device for transmitting information from a reader to a tag. Background technique [0002] The radio frequency identification (RFID, Radio Frequency Identification) technology in the field of communication is an automatic identification technology that uses radio frequency for long-distance communication to identify items. This technology is compatible with today's digital mobile business, and can realize automatic identification and remote real-time monitoring and management. It is one of the popular technologies in contemporary information technology. When working, the RFID tag is installed on the item that needs to be authenticated, and the tag sends the identity information about the item to the receiving device through electromagnetic waves. The RFID system can track and manage almost all physical objects in this way. RFID has broad ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K17/00G06K19/07H03M7/04
Inventor 庄奕琪刘伟峰高林刘文莉耿力宋继伟王文峰
Owner XIDIAN UNIV
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