Method for operating a domestic appliance

• US 10,417,902 B2
• Filed: 05/02/2018
• Issued: 09/17/2019
• Est. Priority Date: 05/09/2017
• Status: Active Grant

• Current Assignee: Miele & CIE KG
• Original Assignee: Miele & CIE KG
• Inventors: Langhammer, Nils
• Primary Examiner(s): Blouin, Mark S
• Application Number:
  US15/968,770
• Publication Number:
  US 20180330603A1
• Time in Patent Office: 503 Days
• Field of Search: 340 125
• CPC Class Codes: F24C 7/08 Arrangement or mounting of control or safety devices
• CPC Class Codes: G01S 13/003 Bistatic radar systems; Multistatic radar systems
• CPC Class Codes: G01S 13/04 Systems determining presence of a target based on relative movement of target G01S13/56
• CPC Class Codes: G01S 13/56 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 Class Codes: G01S 2013/462 using multipath signals
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: G08C 2201/91 Remote control based on location and proximity
• CPC Class Codes: H04L 12/2816 Controlling appliance services of a home automation network by calling their functionalities arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station; in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom H04Q9/00
• CPC Class Codes: H04L 2012/2841 Wireless

Abstract

A method for operating a domestic appliance includes the steps of: receiving, by means of the domestic appliance, a radio signal from at least one radio transmission source; and determining, by means of the domestic appliance, information on surroundings of the domestic appliance by evaluating a temporal progression of an evaluation signal based on the radio signal and influenced by the surroundings of the domestic appliance. The radio signal is intended for transmission within a local radio network and/or complies with the IEEE 802.11 standard, the IEEE 802.154 standard, or the Bluetooth standard.

Claims

1. A method for operating a domestic appliance, comprising the steps of:

receiving, using the domestic appliance, a radio signal from at least one radio transmission source; and

determining, using the domestic appliance, information on surroundings of the domestic appliance by evaluating a temporal progression of an evaluation signal based on the radio signal and influenced by the surroundings of the domestic appliance,

wherein the radio signal is configured for transmission within a local radio network and/or complies with the IEEE 802.11 standard, the IEEE 802.154 standard, or the Bluetooth standard, and

wherein evaluating the temporal progression of the evaluation signal comprises detecting reflection, refraction, scattering, diffraction, attenuation, and/or amplification of the radio signal caused by an object in the surroundings of the domestic appliance before the radio signal is received by the domestic appliance.

2. The method according to claim 1, wherein the surroundings of the domestic appliance comprise a region within which it is possible for a user of the domestic appliance to operate the domestic appliance locally using operating elements thereof.

3. The method according to claim 1, wherein evaluating the temporal progression of the evaluation signal comprises examining the evaluation signal for multipath reception and/or for characteristics of multipath reception.

4. The method according to claim 1, wherein determining information on the surroundings of the domestic appliance comprises at least one of the following steps:

detecting a presence of an object in the surroundings of the domestic appliance;

detecting a movement of an object in the surroundings of the domestic appliance;

locating an object in the surroundings of the domestic appliance;

identifying an object in the surroundings of the domestic appliance;

detecting a state of an object in the surroundings of the domestic appliance;

detecting a state change in the surroundings of the domestic appliance.

5. The method according to claim 1, further comprising the step of:

generating the evaluation signal on the basis of the received radio signal, the generating the evaluation signal on the basis of the received radio signal comprising at least one of the following steps;

examining an indicator value for a reception strength of the received radio signal;

calculating a channel profile of the received radio signal;

examining a temporal variation of the channel profile;

inverting the channel profile of the received radio signal;

examining the temporal variation of the inverted channel profile.

6. The method according to claim 1, further comprising the step of:

automatically controlling the domestic appliance on the basis of the information acquired on the surroundings of the domestic appliance.

7. The method according to claim 1, further comprising the steps of:

detecting, by means of the domestic appliance, local operational actions of a user on the domestic appliance; and

additionally determining information on the surroundings of the domestic appliance by evaluating the detected local operational actions.

8. A control device for a domestic appliance, comprising:

a receiving unit configured to receive a radio signal from at least one radio transmission source; and

an evaluation unit configured to evaluate a temporal progression of an evaluation signal based on the radio signal and influenced by surroundings of the domestic appliance in order to determine information on the surroundings of the domestic appliance,

wherein the control device is configured to carry out a method for operating a domestic appliance, the method comprising the steps of;

receiving, using the domestic appliance, a radio signal from at least one radio transmission source; and

determining, using the domestic appliance, information on surroundings of the domestic appliance by evaluating a temporal progression of an evaluation signal based on the radio signal and influenced by the surroundings of the domestic appliance,

wherein the radio signal is configured for transmission within a local radio network and/or complies with the IEEE 802.11 standard, the IEEE 802.154 standard, or the Bluetooth standard.

9. A domestic appliance, comprising:

the control device according to claim 8.

10. A system, comprising:

the domestic appliance according to claim 9; and

at least one radio transmission source that is arranged remotely from the domestic appliance.

11. A method for operating a domestic appliance, comprising the steps of:

receiving, using the domestic appliance, a radio signal from at least one radio transmission source; and

determining, using the domestic appliance, information on surroundings of the domestic appliance by evaluating a temporal progression of an evaluation signal based on the radio signal and influenced by the surroundings of the domestic appliance; and

generating the evaluation signal on the basis of the received radio signal, the generating the evaluation signal on the basis of the received radio signal comprising at least one of the following steps;

examining an indicator value for a reception strength of the received radio signal;

calculating a channel profile of the received radio signal;

examining a temporal variation of the channel profile;

inverting the channel profile of the received radio signal;

examining the temporal variation of the inverted channel profile,

wherein the radio signal is configured for transmission within a local radio network and/or complies with the IEEE 802.11 standard, the IEEE 802.154 standard, or the Bluetooth standard.

12. The method according to claim 11, wherein the surroundings of the domestic appliance comprise a region within which it is possible for a user of the domestic appliance to operate the domestic appliance locally using operating elements thereof.

13. The method according to claim 11, wherein evaluating the temporal progression of the evaluation signal comprises examining the evaluation signal for multipath reception and/or for characteristics of multipath reception.

14. The method according to claim 11, wherein evaluating the temporal progression of the evaluation signal comprises detecting reflection, refraction, scattering, diffraction, attenuation, and/or amplification of the radio signal caused by an object in the surroundings of the domestic appliance before the radio signal is received by the domestic appliance.

15. The method according to claim 11, wherein determining information on the surroundings of the domestic appliance comprises at least one of the following steps:

detecting a presence of an object in the surroundings of the domestic appliance;

detecting a movement of an object in the surroundings of the domestic appliance;

locating an object in the surroundings of the domestic appliance;

identifying an object in the surroundings of the domestic appliance;

detecting a state of an object in the surroundings of the domestic appliance;

detecting a state change in the surroundings of the domestic appliance.

16. The method according to claim 11, further comprising the step of:

automatically controlling the domestic appliance on the basis of the information acquired on the surroundings of the domestic appliance.

17. The method according to claim 11, further comprising the steps of:

detecting, by means of the domestic appliance, local operational actions of a user on the domestic appliance; and

additionally determining information on the surroundings of the domestic appliance by evaluating the detected local operational actions.