# US 10,441,178 B2 · Monitoring device with volatile organic compounds sensor and system using same

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- Number: US 10,441,178 B2
- Document ID: US10441178B2
- Status: Granted
- Kind: B2
- Application number: 14/805,063
- Filed: 2015-07-21
- Published: 2016-01-21
- Granted: 2019-10-15
- Earliest claimed: 2014-07-21
- Assignees: Withings
- Applicants: David Campo; Stéphane Carpentier; Amaury Dumoulin; Nadine Buard; Eric Carreel
- Inventors: David Campo; Stéphane Carpentier; Amaury Dumoulin; Nadine Buard; Eric Carreel
- Web page: https://patentgrep.com/patent/US10441178B2

## CPC

- A61B 5/02416: {using photoplethysmograph signals, e.g. generated by infrared radiation (A61B5/14552 takes precedence)}
- A61B 5/0004: {characterised by the type of physiological signal transmitted}
- A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
- A61B 5/0816: {Measuring devices for examining respiratory frequency (measuring frequency of electric signals G01R23/00)}
- A61B 5/1128: {using image analysis (A61B5/1127 takes precedence)}
- A61B 5/4803: {Speech analysis specially adapted for diagnostic purposes}
- A61B 5/7207: {of noise induced by motion artifacts}
- G01N 33/0047: {Organic compounds}
- G06T 7/0016: {involving temporal comparison}
- G06T 7/75: {involving models}
- G06V 20/52: Surveillance or monitoring of activities, e.g. for recognising suspicious objects (recognising microscopic objects G06V20/69)
- G08B 21/0208: {Combination with audio or video communication, e.g. combination with "baby phone" function}
- H04N 7/185: {from a mobile camera, e.g. for remote control}
- A61B 2503/04: Babies, e.g. for SIDS detection
- A61B 2560/0242: adapted to measure environmental factors, e.g. temperature, pollution
- G06F 2218/10: by analysing the shape of a waveform, e.g. extracting parameters relating to peaks
- G06T 2207/10024: Color image
- G06T 2207/10048: Infrared image
- G06T 2207/30076: Plethysmography
- G06T 2207/30201: Face
- G06V 10/25: Determination of region of interest [ROI] or a volume of interest [VOI]
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

Video monitoring device comprising a computing unit, a camera, a communication interface, and a volatile organic compounds sensor configured to measure at least a concentration of organic compounds in a room of interest, said computing unit being configured to record the concentrations of organic compounds reported by the volatile organic compounds sensor, and configured to send images taken by the camera and volatile organic compounds concentrations to a remote entity, such as a smartphone over a wireless link.

## Claims

### Claim 1

A video monitoring device for monitoring air quality in a room of interest, comprising a computing unit, a camera, a communication interface, and a volatile organic compounds sensor configured to measure concentrations of organic compounds in the room of interest and to provide an aggregate concentration level of organic compounds which combines all the organic compounds present in the air of the room of interest, including butane, propane, octane, methanol, ethanol, propanol and butanol, and aromatic compounds including benzene, ethylbenzene, and toluene, said computing unit being configured to record the concentrations of organic compounds reported by the volatile organic compounds sensor, and configured to send images taken by the camera and volatile organic compounds concentrations to a remote entity of a user, so that the user can decide whether it is required to ventilate/air the room.

### Claim 2 (depends on 1)

The video monitoring device according to claim 1, wherein the computing unit stores successive organic compound concentration level values in memory, for transmission at regular intervals to the remote entity.

### Claim 3 (depends on 1)

The video monitoring device according to claim 1, wherein an alert threshold is provided in the computing unit, which allows to send immediately to the smartphone an alert message, as soon as the volatile organic compounds concentration level exceeds the predetermined alert threshold.

### Claim 4 (depends on 1)

The video monitoring device according to claim 1, wherein the volatile organic compounds sensor is an electrochemical MOS on-chip sensor using oxidation-reduction reactions with gas(es) present in ambient air, whereby a volatile organic compounds concentration level can be measured.

### Claim 5 (depends on 1)

The video monitoring device according to claim 1, wherein some vital signs of a baby, such as the heart rate and/or respiratory rate of the baby are evaluated by photoplethysmographic analysis of the captured images, thereby forming a device suitable for monitoring the baby in a room or in a crib.

### Claim 6 (depends on 1)

The video monitoring device according to claim 1, further comprising a loudspeaker and a microphone, thereby forming two-way audio link, particularly suitable for interacting with a baby in a room or in a crib, remotely from a parent/caretaker using the smartphone.

### Claim 7 (depends on 1)

A video monitoring system comprising a monitoring device according to claim 1, and a smartphone.

### Claim 8

A method to monitor events in a room and an air quality in the room, the method comprising:
measuring a concentration of organic compounds in a room with a volatile organic compounds sensor
taking images of at least part of the room,
storing the organic compound concentration data in a memory of a computing unit,
send images taken by the camera and volatile organic compounds concentrations, from the computing unit to a remote entity such as a smartphone over a wireless link, and
decide whether it is required to ventilate/air the room.

### Claim 9 (depends on 8)

The method to according to claim 8, wherein the transmission to the smartphone occurs at regular intervals.

### Claim 10 (depends on 8)

The method to according to claim 8, wherein an alert threshold is provided in the computing unit, the method further comprising:
sending quickly to the smartphone an alert message, as soon as the volatile organic compounds concentration exceeds the predetermined alert threshold.

### Claim 11

A video monitoring device for monitoring air quality in a room of interest, comprising a computing unit, a camera, a communication interface, and a volatile organic compounds sensor configured to measure concentrations of organic compounds in the room of interest and to provide an aggregate concentration level of organic compounds which combines all the organic compounds present in the air of the room of interest, including butane propane, octane, methanol, ethanol, propanol, butanol, and aromatic compounds including benzene, ethylbenzene, and toluene, said volatile organic compounds sensor being arranged within the video monitoring device, said computing unit being configured to record the concentrations of organic compounds reported by the volatile organic compounds sensor, and configured to send images taken by the camera and volatile organic compounds concentrations to a remote entity.