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Information encoding method and device for electronic tag

An electronic label and information coding technology, which is applied in the direction of record carriers used by machines, instruments, computer components, etc., can solve the problem that electronic labels cannot be reliably identified, the recognition rate of locomotives and trains cannot be reached, and the installation environment of electronic labels cannot be met. Conditions and other issues, to achieve the effect of improving the effective information transmission rate, improving the identification rate of electronic tags, and enhancing the ability of data verification

Active Publication Date: 2011-05-11
INVENGO INFORMATION TECH
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Problems solved by technology

[0002] The existing technology adopts frequency shift keying FSK coding (that is, a coding form based on the frequency shift keying FSK modulation principle, which is called "deformed FSK coding" in the subsequent text) and the maximum speed of railway electronic tags is 128 km / h. In practice, limited by the installation conditions, the installation environment conditions required for the normal operation of electronic tags cannot be met, so the electronic tags of high-speed locomotives (speeds above 128km / h) cannot be reliably identified, resulting in the identification rate of locomotives and trains. Require

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  • Information encoding method and device for electronic tag

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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0025] Description of the prior art "deformed frequency shift keying FSK coding" and its label data format:

[0026] Such as figure 1 As shown, the "deformed FSK encoding" uses two harmonically related digital frequencies, namely square wave frequencies of 20KHz and 40KHz. A data symbol bit "0" is composed of a period of 20KHz square wave followed by two periods of 40KHz square wave; a data symbol bit "1" is composed of two periods of 40KHz square wave and Followed by a period of 20KHz square wave composition.

[0027] When the electronic tag is read, the data interaction between the reader and the reader is transmitted in a "frame" format. The information length of each frame is 128 symbol bits, and the label information is repeatedly and continuously output frame by frame, and the starting position of the label information frame is identi...

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Abstract

The invention discloses an information encoding method and an information encoding device for an electronic tag, which solve the technical problem to improve effective information transmission rate of data. The method comprises the following steps that: 1, an electronic tag programmer receives the data, an encoding unit performs FM0 encoding and stores the data in a data area, and a read / write control unit transmits the electronic tag data into the electronic tag. The device consists of a data transceiver unit, an encoding unit and a read / write control unit which are connected sequentially. Compared with the prior art, on the premise of not changing the physical channel bandwidth, the transmission rate and an electronic tag hardware circuit of the conventional vehicle number recognition system, the invention has the advantages that: vehicle number data contents stored in the electronic tag are subjected to the FM0 encoding, the data verification capacity is improved, and the effectiveinformation transmission rate of the data is greatly improved; therefore, the electronic tag recognition rate of the vehicle number recognition system is improved.

Description

technical field [0001] The invention relates to an encoding method and a device for an electronic label, in particular to an encoding method and a device for an electronic label applied to a railway car number identification system. Background technique [0002] The existing technology adopts frequency shift keying FSK coding (that is, a coding form based on the frequency shift keying FSK modulation principle, which is called "deformed FSK coding" in the subsequent text) and the maximum speed of railway electronic tags is 128 km / h. In practice, limited by the installation conditions, the installation environment conditions required for the normal operation of electronic tags cannot be met, so the electronic tags of high-speed locomotives (speeds above 128km / h) cannot be reliably identified, resulting in the identification rate of locomotives and trains. Require. With the continuous improvement of domestic train running speed, the running density is gradually increasing. The...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06
Inventor 徐玉锁陈长安冯汉炯武岳山熊泽渝薛军兴陈晶何方勇黎景明
Owner INVENGO INFORMATION TECH
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