# US 2021/0241878 A1 · Activity capability monitoring

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- Number: US 2021/0241878 A1
- Document ID: US20210241878A1
- Status: Published application
- Kind: A1
- Application number: 17/018,756
- Filed: 2020-09-11
- Published: 2021-08-05
- Earliest claimed: 2015-09-15
- Assignees: Commonwealth Scientific and Industrial Research Organisation
- Applicants: Commonwealth Scientific and Industrial Research Organisation
- Inventors: Mohanraj Krishnamoorthy KARUNANITHI; Qing ZHANG
- Web page: https://patentgrep.com/patent/US20210241878A1

## CPC

- G16H 20/30: relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
- A61B 5/0022: {Monitoring a patient using a global network, e.g. telephone networks, internet}
- A61B 5/1113: {Local tracking of patients, e.g. in a hospital or private home}
- A61B 5/1116: {Determining posture transitions}
- A61B 5/1118: {Determining activity level}
- A61B 5/7246: {using correlation, e.g. template matching or determination of similarity}
- A61B 5/7282: {Event detection, e.g. detecting unique waveforms indicative of a medical condition (cough events A61B5/0823; seizures A61B5/4094; sleep apnoea A61B5/4818)}
- A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)}
- A61B 5/746: {Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms}
- G06Q 10/06: Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q 10/0639: Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G16H 40/67: for remote operation
- G16H 50/30: for calculating health indices; for individual health risk assessment
- A61B 2503/08: Elderly
- A61B 2560/0252: using ambient temperature
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR

## Abstract

A method of monitoring activity capabilities of a subject, including determining sensor data for each of a plurality of sensors, the sensors being positioned within a living environment of the subject and the sensor data being indicative of activities performed by the subject; for each of a plurality of activity domains, determining a domain score indicative of a level of activity within the respective activity domain, the domain score being determined using sensor data from a respective combination of sensors within the respective domain; determining a reference activity level using reference domain scores during a reference time period; determining a current activity level using current domain scores during a monitoring time period; and generating an activity indicator in accordance with the current activity level and the reference activity level, the activity indicator being indicative of differences between the current activity level and the reference activity level, thereby providing feedback on the activity capabilities of the subject.

## Claims

### Claim at position 1

1-20. (canceled)

### Claim 21

A method of monitoring activity capabilities of a subject, the method including, in at least one processing device:
a) determining sensor data indicative of sensor readings for each of a plurality of sensors, the sensors being mounted in a living environment of the subject and the sensor data for each sensor being at least partially indicative of one or more activities performed by the subject;
b) for each of a plurality of activity domains, determining a domain score indicative of a level of activity within the respective activity domain, the domain score being determined using sensor data from a respective combination of sensors associated with the respective domain;
c) determining a reference activity level using reference domain scores measured during a reference time period, wherein the reference domain scores are determined using the sensor data from the sensors mounted in the living environment of the subject during a reference time period;
d) determining a current activity level using current domain scores measured during a monitoring time period;
e) generating an activity indicator at least partially in accordance with the current activity level and the reference activity level, the activity indicator being at least partially indicative of differences between the current activity level and the reference activity level, thereby providing feedback on the activity capabilities of the subject;
f) comparing the current activity level to the reference activity level that is measured during the reference time period, such that the current activity level as measured on a given day is compared to a reference activity level established for the same day during the reference time period; and,
g) determining an activity level score based on results of comparing the current activity level to the reference activity level, wherein the activity level score is a single numerical overall score indicating a functional independence of the subject.

### Claim 22 (depends on 21)

A method according to claim 21, wherein the method includes:
a) determining the reference activity level using the activity level score measured during the reference time period; and,
b) determining the current activity level using the activity level score measured during the monitoring time period.

### Claim 23 (depends on 21)

A method according to claim 21, wherein the combination of the domain scores includes at least one of:
a) a sum; and,
b) a weighted sum.

### Claim 24 (depends on 21)

A method according to claim 21, wherein the method includes:
a) determining an activity pattern indicative of relative values of domain scores;
b) determining the reference activity level using the activity pattern measured during the reference time period; and,
c) determining a current activity level using a current activity pattern measured during the monitoring time period.

### Claim 25 (depends on 21)

A method according to claim 21, wherein the method includes:
a) comparing the current activity level to the reference activity level; and,
b) generating the activity indicator at least partially in accordance with results of the comparison.

### Claim 26 (depends on 25)

A method according to claim 25, wherein the method includes comparing at least one of:
a) each current domain score to an equivalent reference domain score of the subject;
b) each current domain score to a respective reference range derived from an equivalent reference domain score of the subject;
c) a current activity level score to a reference activity level score of the subject;
d) a current activity level score to a respective reference range derived from a reference activity level score of the subject;
e) a current activity pattern to a reference activity pattern of the subject; and,
f) a current activity level to a reference activity level of the subject measured during a corresponding time period.

### Claim 27 (depends on 26)

A method according to claim 26, wherein the method includes:
a) determining a condition suffered by the subject; and,
b) determining, at least partially in accordance with the condition, at least one of:
i) an activity level score;
ii) a domain score;
iii) a reference domain score range; and,
iv) a reference activity level range.

### Claim 28 (depends on 25)

A method according to claim 25, wherein the method includes:
a) determining an action rule; and,
b) selectively performing an action in accordance with the action rule and in response to the results of the comparison, wherein the action includes:
i) generating an alert notification; and,
ii) providing the alert notification to a user by transferring the alert notification to a client device of the user via a communications network.

### Claim 29 (depends on 21)

A method according to claim 21, wherein the method includes:
a) generating a representation indicative of at least one of:
i) results of a comparison;
ii) current domain scores;
iii) reference domain scores;
iv) current activity level scores;
v) reference activity level scores;
vi) current activity level patterns;
vii) reference activity level patterns; and,
viii) the activity indicator; and,
b) providing the representation to a client device via a communications network.

### Claim 30 (depends on 21)

A method according to claim 21, wherein the method includes determining a domain score using sensor data from a respective combination of sensors, and wherein the respective combination of sensors for each domain is determined based on at least one:
a) a sensor type; and,
b) a sensor location.

### Claim 31 (depends on 21)

A method according to claim 21, wherein the sensors include at least one of:
a) motion sensors;
b) power sensors that monitor operation of appliances;
c) temperature sensors;
d) humidity sensors;
e) accelerometers; and,
f) door sensors.

### Claim 32 (depends on 21)

A method according to claim 21, wherein the activity domain includes:
a) hygiene;
b) nutrition;
c) mobility;
d) transfer; and,
e) dressing/grooming.

### Claim 33 (depends on 21)

A method according to claim 21, wherein the method includes, for at least one domain:
a) identifying events using sensor data from the sensors, wherein identifying the events includes comparing sensor data to a number of signatures, each signature being indicative of a respective event; and,
b) determining the domain score using at least one of:
i) a sum of a number of events during a time period; and,
ii) a sum of a number of clusters of events during a time period.

### Claim 34

An apparatus for monitoring activity capabilities of a subject, the apparatus including:
a) a plurality of sensors, the sensors being mounted in a living environment of the subject; and,
b) at least one processing device that:
i) determines sensor data indicative of sensor readings for each of the plurality of sensors, the sensor data for each sensor being at least partially indicative of one or more activities performed by the subject;
ii) for each of a plurality of activity domains, determines a domain score indicative of a level of activity within the respective activity domain, the domain score being determined using sensor data from a respective combination of sensors associated with the respective domain;
iii) determines a reference activity level using reference domain scores, wherein the reference domain scores are determined using the sensor data from the sensors mounted in the living environment of the subject during a reference time period;
iv) determines a current activity level using current domain scores measured during a monitoring time period;
v) generates an activity indicator at least partially in accordance with the current activity level and the reference activity level, the activity indicator being at least partially indicative of differences between the current activity level and the reference activity level, thereby providing feedback on the activity capabilities of the subject;
vi) compares the current activity level to a reference activity level that is measured during the reference time period, such that the current activity level as measured on a given day is compared to a reference activity level established for the same day during the reference time period; and,
vii) determines an activity level score based on results of comparing the current activity level to the reference activity level, wherein the activity level score is a single numerical overall score indicating a functional independence of the subject.

### Claim 35 (depends on 34)

The apparatus according to claim 34, wherein the apparatus includes a hub provided in the living environment, the hub being adapted to communicate with each of the sensors and provide the sensor data to the at least one processing device, via a communications network.

### Claim 36 (depends on 35)

The apparatus according to claim 35, wherein the apparatus includes a processing system including at least one processing device, the processing system communicating with one or more client devices via communications network, to at least one of:
a) provide alert notifications to the client devices; and,
b) allow the client devices to display a representation indicative of at least one of:
i) results of a comparison;
ii) current domain scores;
iii) reference domain scores;
iv) current activity level scores;
v) reference activity level scores;
vi) current activity level patterns;
vii) reference activity level patterns; and,
viii) the activity indicator.

### Claim 37 (depends on 23)

A method according to claim 23, wherein the weighted sum includes applying different weightings to different domain scores based on a degree of priority, relevance or severity of a condition of the subject.

### Claim 38 (depends on 21)

A method according to claim 21, wherein the method further includes prioritizing at least one domain over at least another domain for the subject in calculating the activity level score.

### Claim 39 (depends on 21)

A method according to claim 21, wherein the method further includes comparing an activity level score to a range established using reference activity levels, the range being restricted to at least one domain prioritized over at least another domain.

### Claim 40 (depends on 21)

A method according to claim 21, wherein the activity domains are activities of daily living (ADL) including:
a) mobility;
b) transfer;
c) hygiene;
d) dressing; and,
e) meal preparation.