Passive radio frequency sensing tag and step counting method

Abstract

The invention relates to a passive radio frequency sensing tag and a step counting method.The tag comprises a radio frequency chip, a detection circuit, a radio frequency antenna circuit and a vibration sensing switch, the radio frequency antenna circuit is electrically connected with the radio frequency chip, and the vibration sensing switch is electrically connected with the radio frequency chip through the detection circuit; the radio frequency chip can sense the on-off state of the vibration sensing switch through the detection circuit. According to the step counting method, the passive radio frequency sensing tag is matched with readers uniformly arranged in a place, and accurate step counting can be carried out on walking objects walking in the place. The method has the advantages that a more accurate step counting function in a fixed space can be realized by combining the passive radio frequency tag, the vibration sensing switch and the specific reader three-dimensional planning setting, and other energy consumption modules such as a GPS (Global Positioning System) are not needed. The equipment is small in size, low in energy consumption, low in cost and convenient to use, radio frequency energy emitted by the reader can be directly obtained through the radio frequency antenna circuit to serve as a working power supply, an independent power supply does not need to be arranged, and a battery does not need to be replaced or charged.

Description

technical field [0001] The invention belongs to the technical field of radio frequency tags, and in particular relates to a passive radio frequency sensing tag and a step counting method. Background technique [0002] Electronic tag is RFID tag, which is a non-contact automatic identification technology, which uses radio frequency signals to identify target objects and obtain relevant data. The basic working principle of RFID technology is not complicated. For passive radio frequency tags, after entering the magnetic field issued by the reader, it receives the radio frequency signal sent by the reader, and sends out the products stored in the chip with the energy obtained by the induced current. information, which can be received by the reader. [0003] The electronic pedometer is mainly composed of a vibration sensor switch and an electronic counter. When walking, the center of gravity must move up and down a little, and the up and down displacement of the waist is the mos...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a passive radio frequency sensor tag and a step counting method, aiming to overcome the shortcomings of traditional pedometers in the prior art, such as high cost, high energy consumption, and difficult maintenance.

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