METHOD, APPARATUS, AND SYSTEM FOR WIRELESS GAIT RECOGNITION

• Main Authors: ZHANG, Feng, CLAFFEY, David N, WU, Zhung-Han, HU, Yuqian, WU, Chenshu, SHIH, Chun-Chia Jack, LIU, K. J. Ray, BUGOS, Dan, WANG, Beibei, ZENG, Xiaolu, AU, Oscar Chi-Lim, LAI, Hung-Quoc Duc, LEE, Jeng-Feng, MAI, Chao-Lun
• Format: Patent
• Language: English; French; German
• Published: 19.08.2020
• Subjects: ALARM SYSTEMS; ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; DIAGNOSIS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; HANDLING RECORD CARRIERS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEDICAL OR VETERINARY SCIENCE; ORDER TELEGRAPHS; PHYSICS; PRESENTATION OF DATA; RADIO DIRECTION-FINDING; RADIO NAVIGATION; RECOGNITION OF DATA; RECORD CARRIERS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; SURGERY; TESTING; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

Methods, apparatus and systems for wireless gait recognition are described. In one example, a described system comprises: a transmitter, a receiver, and a processor. The transmitter is configured for transmitting a first wireless signal towards an object in a venue through a wireless multipath channel of the venue. The receiver is configured for: receiving a second wireless signal through the wireless multipath channel between the transmitter and the receiver. The second wireless signal differs from the first wireless signal due to the wireless multipath channel which is impacted by a rhythmic motion of the object. The processor is configured for: obtaining a time series of channel information (CI) of the wireless multipath channel based on the second wireless signal, monitoring the rhythmic motion of the object based on the time series of CI (TSCI), and triggering a response action based on a result of the monitoring.