Standalone capacitance sensor for furniture

• US 10,197,259 B2
• Filed: 12/01/2015
• Issued: 02/05/2019
• Est. Priority Date: 01/09/2012
• Status: Active Grant

• Current Assignee: L&P Property Management Company (Leggett & Platt Incorporated)
• Original Assignee: L&P Property Management Company (Leggett & Platt Incorporated)
• Inventors: Chacon, Ryan Edward, Madadi, Avinash, Rohr, William Robert, Turner, Jason B., Browning, Caleb
• Primary Examiner(s): Menz, Laura
• Application Number:
  US14/955,859
• Publication Number:
  US 20160084487A1
• Time in Patent Office: 1,162 Days
• CPC Class Codes: A47C 20/041 by electric motors
• CPC Class Codes: A47C 21/00 Attachments for beds, e.g. sheet holders, bed-cover holders bed tables supported on the bedstead A47B23/02; for children's beds A47D7/00, A47D15/00; Ventilating, cooling or heating means in connection with bedsteads or mattresses
• CPC Class Codes: F21V 23/0485 the sensor sensing the physical interaction between a user and certain areas located on the lighting device, e.g. a touch sensor
• CPC Class Codes: F21V 33/0012 Furniture hospital beds F21V33/0072
• CPC Class Codes: F21W 2131/301 for furniture
• CPC Class Codes: G01V 3/088 operating with electric fields G01V3/082 takes precedence
• CPC Class Codes: H03K 17/955 using a capacitive detector
• CPC Class Codes: H03K 2017/9602 characterised by the type or shape of the sensing electrodes
• CPC Class Codes: H03K 2217/96078 Sensor being a wire or a strip, e.g. used in automobile door handles or bumpers
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A system and method for incorporating occupancy-detecting technology into furniture is provided. More particularly, the invention relates to detecting occupancy by a standalone capacitance detection device. The standalone capacitance detection device is configured for integration with any number of furniture items. Further, the detected capacitance may be used to determine commands for controlling a variety of devices associated with the standalone capacitance detection device. Additionally, methods for determining occupancy of a furniture item and a system for monitoring occupancy are described herein.

Claims

1. A standalone capacitance detection system for integration with a furniture item, the system comprising:

one or more light sources;

a capacitance detection sensor; and

a control component configured for communicative coupling to the one or more light sources and the capacitance detection sensor, wherein the control component;

receives a first capacitance indication from the capacitance detection sensor;

generates a first lighting command based on the first capacitance indication, wherein the first lighting command initiates a light-on state for the one or more light sources;

controls a power supplied to the one or more light sources based on the first lighting command, wherein the power is supplied in a plurality of on intervals during the light-on state;

coordinates with the capacitance detection sensor to detect a second capacitance indication during the light-on state, wherein the capacitance detection sensor detects capacitance between the plurality of on intervals of the supplied power;

generates a second lighting command based on the second capacitance indication, wherein the second lighting command initiates a light-off state; and

controls the stopping of the power supplied to the one or more light sources based on the second lighting command.

2. The system of claim 1, further comprising a manual control device for receiving a plurality of commands for controlling the one or more light sources.

3. The system of claim 1, wherein the capacitance detection sensor comprises a capacitance detection pad having a size and a shape suitable for integration with a plurality of types of furniture items.

4. The system of claim 1, wherein the control component is configured to automatically calibrate by measuring a baseline electric field and setting an occupancy threshold.

5. The system of claim 1, wherein the first capacitance indication corresponds to a capacitance measurement that indicates that occupancy has been detected and the second capacitance indication corresponds to a measurement that indicates that occupancy has not been detected.

6. The system of claim 1, further comprising a power source that provides power to the one or more light sources.

7. A method of controlling a standalone capacitance detection system associated with a furniture item, the method comprising:

controlling power to one or more light sources communicatively coupled to a control component;

receiving one or more capacitance indications from a capacitance detection sensor communicatively coupled to the control component;

receiving, at a control component, a first capacitance indication from the capacitance detection sensor;

generating, by a control component, a first lighting command based on the first capacitance indication, wherein the first lighting command initiates a light-on state;

controlling, by a control component, the power supplied to the one or more light sources, wherein the power is supplied in a plurality of on intervals during the light-on state;

coordinating, by a control component, with the capacitance detection sensor to detect a second capacitance indication during the light-on state, wherein the capacitance detection sensor detects capacitance between the plurality of on intervals of supplied power;

generating, by a control component, a second lighting command based on the second capacitance indication, wherein the second lighting command initiates a light-off state; and

controlling, by a control component, the stopping of the power supplied to the one or more light sources based on the second lighting command.

8. The method of claim 7, further comprising receiving, from a manual control device, a plurality of commands for controlling the one or more light sources.

9. The method of claim 7, wherein the capacitance detection sensor comprises a capacitance detection pad having a size and a shape suitable for integration with a plurality of types of furniture items.

10. The method of claim 7, further comprising automatically calibrating an occupancy threshold by measuring a baseline electric field.

11. The method of claim 7, wherein the first capacitance indication corresponds to a capacitance measurement that indicates that occupancy has been detected and the second capacitance indication corresponds to a measurement that indicates that occupancy has not been detected.

12. A method of manufacturing a standalone capacitance detection system, the method comprising:

communicatively coupling one or more light sources to a control component;

communicatively coupling a capacitance detection sensor to the control component;

wherein the control component communicatively coupled to the one or more light sources and the standalone capacitance detection device is configured to;

receive a first capacitance indication from the capacitance detection sensor;

generate a first lighting command based on the first capacitance indication, wherein the first lighting command initiates a light-on state for the one or more light sources;

control a power supplied to the one or more light sources based on the first lighting command, wherein the power is supplied in a plurality of on intervals during the light-on state;

coordinate with the capacitance detection sensor to detect a second capacitance indication during the light-on state, wherein the capacitance detection sensor detects capacitance between the plurality of on intervals of the supplied power;

generate a second lighting command based on the second capacitance indication, wherein the second lighting command initiates a light-off state; and

control the stopping of the power supplied to the one or more light sources based on the second lighting command.

13. The method of claim 12, further comprising configuring a manual control device to receive a plurality of commands for controlling the light source.

14. The method of claim 12, wherein the capacitance detection feature comprises a capacitance sensor that integrates with a plurality of types of furniture items.

15. The method of claim 12, wherein the control component is configured to automatically calibrate an occupancy threshold by measuring a baseline electric field.

16. The method of claim 12, wherein the first capacitance data corresponds to a capacitance measurement that indicates that occupancy has been detected and the second capacitance data corresponds to a measurement that indicates that occupancy has not been detected.

17. The method of claim 12, further comprising configuring a power source to provide power to the one or more light sources.