Method, apparatus, and system for wireless proximity and presence monitoring

Patent metadata

Field	Value
Publication number	US-11035940-B2
Application number	US-201916667648-A
Country	US
Kind code	B2
Filing date	Oct 29, 2019
Priority date	Jul 17, 2015
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

Methods, apparatus and systems for monitoring a presence or a motion of an object in a proximity of an apparatus are described. In one example, a described apparatus is in a venue for wireless proximity monitoring. The apparatus comprises: a transmitter, a receiver, and a processor. The transmitter is configured for transmitting a wireless signal through a wireless multipath channel, wherein the wireless multipath channel is impacted by a motion of an object within a proximity of the apparatus. The receiver is configured for: receiving the wireless signal through the wireless multipath channel between the transmitter and the receiver, and obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the wireless signal received by the receiver. The processor is configured for monitoring the motion of the object within the proximity of the apparatus based at least partially on the TSCI.

First claim

We claim:

1. An apparatus in a venue for wireless proximity monitoring, comprising:
a transmitter configured for transmitting a wireless signal through a wireless multipath channel, wherein the wireless multipath channel is impacted by a motion of an object within a proximity of the apparatus, wherein the proximity is segmented into a plurality of zones;
a receiver configured for:
receiving the wireless signal through the wireless multipath channel between the transmitter and the receiver, and
obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the wireless signal received by the receiver; and

a processor coupled to the receiver and configured for
determining, based at least partially on the TSCI, a presence of the object,
calculating a motion statistic value indicating a motion intensity of the object based on a correlation between adjacent channel information of the TSCI,
determining, among the plurality of zones, particular zone where the object is present based on the motion statistic value, and
monitoring the motion of the object in the particular zone of the plurality of zones within the proximity of the apparatus based at least partially on the TSCI,

wherein the motion of the object is monitored by determining at least one of:
a characteristics of the motion, a behavior of the object, a location of the object, a duration of the motion, a timing of the motion, an intensity of the motion, a distance of the motion, a speed of the motion, an acceleration of the motion,
a repeated pattern of the motion, a periodic characteristics of the motion, a transient characteristics of the motion, an activity of the object, a regular activity of the object, a daily activity of the object, a weekly activity of the object, a monthly activity of the object, a yearly activity of the object,
a change of the object, a change of the motion, a change of intensity of the motion, a change of a duration of the motion, an impulsive change of the motion, a change in behavior of the object, a change in transient characteristics of the motion, a change in periodic characteristics of the motion,
an event associated with the object, a fall-down event of the object, an appearance of the object, a disappearance of the object, a behavior of the object, a gesture of the object, a gait of the object, a security-related event,
at least one companion of the object, an information of the at least one companion, and
a quantity of the object comprising an identity, a count, a class, a group, an age, a location, a time, a timing, a duration, a body condition, a vital sign, a breathing rate, a heart rate, a sleep quality, a sleep measure, an activity level, an activity measure, a physical state, an emotional state, a mental state, an anxiety, a calmness, a restlessness, a walking distance, a daily step count, a behavior, a fight, a presence, an absence, an appearance, a disappearance, an approaching, a receding, a pacing back and forth, a pacing from one end to another, a pacing from one point to another, a trend, a daily activity, a repeated activity, a normal activity, a deviation from normal activity, a sign of sickness, a sign of danger, a sign of need, an emotion, an expression, a facial expression, a body language, a gesture, a gait, a sign, a body motion, a head motion, a shoulder motion, a limb motion, a hand motion, a finger motion, a handwriting, a brush stroke, a keystroke, a symptom, and another quantity of the object.

2. The apparatus of claim 1 , wherein:
a relative position of the transmitter and the receiver is adjusted,
an instantaneous channel information (CI) of the wireless multipath channel is changed as the relative position being adjusted, and
the relative position is adjusted by adjusting at least one of: a position of the transmitter, a position of the receiver, an orientation angle of the transmitter, an orientation angle of the receiver, a distance between the transmitter and the receiver, a configuration of the transmitter and the receiver, an arrangement of antennas of the transmitter and the receiver, a relative angle of the transmitter and the receiver, a position of an antenna of the transmitter, a position of an antenna of the receiver, an orientation angle of an antenna of the transmitter, an orientation angle of an antenna of the receiver, a distance between an antenna of the transmitter and another antenna of the receiver, a replacement of an antenna of the transmitter, and a replacement of an antenna of the receiver.

3. The apparatus of claim 1 , wherein:
the wireless signal is a train of probe signals;
the wireless signal is compatible with at least one of:
a standard, wireless local area network (WLAN) standard, wireless communication standard, mobile communication standard, wireless network standard, international standard, national standard, industry standard, defacto standard,
an IEEE standard, IEEE 802 standard, 802.11, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.15, 802.16, WiFi standard, mesh standard,
a 3GPP standard, LTE, 3G, 1G, 5G, 6G, 7G, 8G, UWB standard, Bluetooth standard, BLE, RFID standard, and another standard;

the receiver is configured for receiving the train of probe signals and extracting the TSCI based on the received train of probe signals;
at least one of the transmitter and the receiver is configured based on at least one of:
a user command, a remote command, a time schedule, the monitored characteristics of the motion of the object, a first event determined directly based on the monitored motion characteristics, a second event determined indirectly based on the monitored motion characteristics, a third event determined by another device, a status of the object, a status of another device in the venue, a status of another object in the venue, a status of the venue,
a primitive, a service, an instructive command, a fundamental instruction, a service primitive, a management primitive, a management service primitive, a control primitive, a primitive comprising a probing rate of the train of probe signals, a primitive comprising a configuration associated with the probing rate, a primitive comprising the probing rate as a parameter of the primitive, a primitive comprising a priority setting associated with the probing rate change,
a primitive comprising a new configuration, a primitive comprising a timing associated with a configuration change, a primitive comprising a request associated with the configuration, a primitive comprising a priority setting, a primitive comprising a priority parameter, a primitive associated with an instantiation of probe signal transmission,
a standard-compliant primitive, an 802 primitive, an 802.11 primitive, a MAC layer primitive, a PHY layer primitive, a software call, a firmware call, a subroutine call, a software library,
a standard-compliant frame, a standard-compliant management frame, a standard-compliant control frame, a standard-compliant data frame,
an 802 frame, an 802.11 frame, an 802.11 management frame, an 802.11 control frame, an 802.11 data frame,
a message, a message from an application software, a message from a software, a message from a firmware, a message from another, a message sent to the transmitter, a message sent to the receiver, a message sent from the receiver to the transmitter, a message sent from the transmitter to the receiver, wherein the message comprises at least one of: a command, the user command, the remote command, a request, an instruction, a software library call, a firmware, a management frame, a control frame, a data frame, the standard-compliant frame, the standard-compliant management frame, the standard-compliant control frame, the standard-compliant data frame, the 802 frame, the 802.11 frame, the 802.11 management frame, the 802.11 control frame, the 802.11 data frame, and another

Assignees

• Xu Qinyi
• Han Yi
• Lai Hung Quoc Duc
• Wang Beibei
• Au Oscar Chi Lim
• Liu K J Ray
• Origin Wireless Inc

Inventors

• Xu Qinyi
• Han Yi
• Lai Hung-Quoc Duc
• Wang Beibei
• Au Oscar Chi-Lim
• Liu K J Ray

Classifications

• G01S7/006

  using shared front-end circuitry, e.g. antennas (G01S13/765, G01S13/825 take precedence) · CPC title

• G01S13/765

  with exchange of information between interrogator and responder · CPC title

• G01S7/415 Primary

  Identification of targets based on measurements of movement associated with the target · CPC title

• G01S13/931

  of land vehicles · CPC title

• G01S13/56

  for presence detection {(presence detection using near field arrangements G01V3/00, e.g. G01V3/08, G01V3/12; burglar, theft or intruder alarms with electrical actuation G08B13/22 - G08B13/26)} · CPC title