Fall detection device based on RFID

Abstract

The invention belongs to the field of RFID detection, and discloses a fall detection device based on RFID. The device comprises a body, an RFID passive tag, an RFID antenna and a reader-writer, wherein a plurality of RFID passive tags are arranged in the body; the RFID antenna is arranged above the body; electromagnetic wave signal transmitting method, the RFID passive tag is used for receiving an electromagnetic wave signal sent by the RFID antenna; meanwhile, the received electromagnetic wave signal is fed back to the RFID antenna; and the reader-writer is connected with the RFID antenna and is used for reading the electromagnetic wave signal which is fed back by the RFID antenna and received by the RFID passive tag, and judging the falling state of the object to be detected according to the number and the position of the RFID passive tag of the electromagnetic wave signal which is not read by the reader-writer when the object to be detected falls down. Through the method and the device, the problems of high intervene, lack of privacy protection and inconvenience in wearing in the prior art are solved.

Description

technical field [0001] The invention belongs to the field of RFID detection, and more particularly relates to an RFID-based fall detection device. Background technique [0002] The serious aging of the population has become a prominent hot issue in the world today, and falls are an important factor affecting the health of the elderly. Especially if there is no one to help and unable to save themselves after the elderly fall, it will cause long-term maintenance in a prone position, leaving sequelae, and in severe cases, paralysis or life-threatening situations will occur. This not only affects the physical health of the elderly, makes the elderly afraid of falling, and creates a psychological burden, but also causes an increase in medical expenses and medical costs. nervous. [0003] Currently, fall detection technologies are mainly divided into the following three types: [0004] (1) Detection method based on video image sequence. This method is mainly to arrange the det...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides an RFID-based fall detection device. By setting densely distributed RFID passive tags in the body, the RFID passive tags that have not received electromagnetic wave signals are detected by the reader. The position and quantity of the source tags are used to judge the fall position of the object to be detected, thus solving the problems of large intervention, lack of privacy protection and inconvenient wearing in the existing technology

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