Electricity-quantity identification of active radio-frequency identification card cell and charging method thereof

A technology of battery power and label card, which is applied to battery circuit devices, measuring electric variables, measuring electricity, etc., and can solve problems such as the decrease of the working distance of the automatic identification system, the unclear battery, and the inability to be identified and recorded by the label system.
CN1529182AInactive Publication Date: 2004-09-15FUDAN UNIV
0 Cites 60 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
FUDAN UNIV
Publication Date
2004-09-15
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

In present active radio frequency recognition system, as horary extension in usage, quantity of electricity of battery is dropped so as to make operating distance reduced. Thus, user does not know quantity of electricity of battery. Card reader may not obtain information of label card so as to miss recognizing and recording label system. The invention can recognize electric quantity of battery of label card, and sands out a hint for replacing battery or not replacing battery. Electromagnetic wave charger (card reader) is utilized to charge labeled battery wirelessly through electromagnetic wave.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention relates to information collection of the battery power of an active radio frequency identification tag card and a method for charging the battery. Background technique

[0002] In recent years, automatic identification methods have been rapidly popularized and promoted in many service fields, in the sales of goods and logistics distribution, in the commercial sector, in the fields of production enterprises and material circulation.

[0003] Automatic identification technology traditionally includes barcode, optical symbol recognition, voice recognition, fingerprint recognition and other biological information measurement methods, IC card, etc., each has its own advantages and disadvantages, and has been developed and applied differently.

[0004] In recent years, one of the technically best solutions for automatic identification is to store data in a silicon chip. In daily life, IC cards (telephone IC cards, bank cards, etc.) with contact rows...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More