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Passive RFID tag with acceleration transducer

An accelerometer and passive radio frequency technology, applied in the direction of measuring acceleration, speed/acceleration/shock measurement, recording carrier used by machines, etc., can solve the problem of not being able to monitor the movement of the carrier, and achieve easy expansion and great flexibility Effect

Active Publication Date: 2012-12-19
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing tags that provide simple information, especially the inability to monitor the movement of the carrier, the purpose of the present invention is to provide a passive radio frequency tag with an acceleration sensor

Method used

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  • Passive RFID tag with acceleration transducer
  • Passive RFID tag with acceleration transducer
  • Passive RFID tag with acceleration transducer

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] like figure 1 As shown in , the overall structural composition of the new tag is described: the analog front end of the upper part and the MCU control of the lower part. The analog front end consists of PCB antenna, rectifier module, energy storage module, voltage regulator module, demodulation module, and modulation module. This part completes the conversion and storage of radio frequency signals to electrical energy, the decoding of reader commands and the encoding of tag response data. The MCU control part mainly includes a microprocessor module, LED module, EEPROM, Vout monitoring module, and accelerometer module. This part completes the control of the entire label and the collection of acceleration sensor parameters. The energy of the whole tag is provided by the energy storage capacitor in the RF front-end module.

[0017] like figure ...

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Abstract

The invention discloses a passive RFID tag with an acceleration transducer, comprising an RF front end and an MCU control part, wherein the RF front end is mainly composed of a PCB antenna, a rectifier module, an energy storage module, a voltage stabilization module, a demodulation module and a modulation module, wherein the MCU control part comprises a microprocessor module, an LED module, an EEPROM, a Vout monitoring module and an accelerometer module. The invention not only returns the ID information of a carrier to a reader-writer but also better monitors patients by collecting the movement situation of the carrier by acquiring the acceleration transducer.

Description

technical field [0001] The invention relates to a tag device for non-contact identification through radio frequency signals, in particular to an electronic tag with an accelerometer capable of sensing the movement of a wearer. Background technique [0002] With the development of ASIC and wireless communication technology, RFID technology with non-contact identification capability has been widely used due to its simplicity and cheapness. RFID technology is often seen in logistics tracking, hospital patient monitoring and other occasions. However, the tags in the current RFID system are all composed of special integrated chips, and the stored information is simple ID information. For some situations that need to monitor the movement of the carrier at the same time, such as patient movement, the ID information provided by ordinary tags is obviously far from enough. Contents of the invention [0003] In order to overcome the defect that the existing tags provide simple info...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/07G01P15/00
Inventor 陈积明江发昌程鹏贺诗波孙优贤
Owner ZHEJIANG UNIV