Device for determining a stress level of a person and providing feedback on the basis of the stress level as determined

1. A device for determining a stress level of a person and providing feedback on a basis of the stress level as determined, comprising:

a textile structure;

at least one body sensor including a patch of electronically conductive textile material integrated in the textile structure, the electrically conductive textile patch measuring electrical signals which are representative of electrical activity inside a body of the person when the textile structure contacts the person's body; and

a stress assessing device which processes the electrical signals from the at least one body sensor, and determines a stress level of the person and controls parameters for controlling a feedback device in accordance with the determined stress level;

the feedback device being configured to communicate the stress level to the person;

wherein the feedback device includes LEDs embedded in the textile structure to change color of at least a portion of the textile structure in accordance with the stress level of the person.

2. The device according to claim 1 , further comprising:

at least one motion sensor which detects movement of the person and provides input to the stress assessing device,

wherein the stress assessing device processes input provided by both the at least one body sensor and the at least one motion sensor and determines control parameters for controlling the feedback device on the basis of the input provided by both the at least one body sensor and the at least one motion sensor.

3. The device according to claim 1 , further including:

conductive textile connections at least between the electrically conductive textile patch and the stress assessing device.

4. The device according to claim 1 , wherein the feedback device provides treatment to the body of the person.

5. The device according to claim 4 , wherein the feedback device includes infrared LEDs disposed on an inside of the textile structure to treat at least a portion of the body of the person with infrared light in accordance with the stress level.

6. The device according to claim 1 , wherein the textile structure in which the conductive textile patch is integrated is part of a garment.

7. The device according to claim 1 , wherein the textile structure in which the at least one conductive textile patch is integrated is part of a piece of furniture.

8. The device according to claim 7 , wherein the feedback device adjusts a shape of the piece of furniture in accordance with the determined stress level of the person.

9. A device for determining a stress level of a person and providing feedback on a basis of the stress level as determined, comprising:

at least one body sensor integrated into a textile structure and configured to detect a stress related body parameter;

at least one motion sensor configured to detect movement of the person;

a stress assessing device; and

a feedback device;

wherein the stress assessing device is configured to process input provided by both the at least one body sensor and the at least one motion sensor, and configured to determine control parameters for controlling the feedback device, on a basis of the input provided by both the at least one body sensor and the at least one motion sensor; and

wherein the feedback device is configured to control an angle between a seat portion and a backrest of a piece of furniture, on the basis of the input provided by the at least one body sensor and the at least one motion sensor and includes an infrared light source embedded in the textile structure to treat at least a portion of the body of the person with infrared light in accordance with a stress level.

10. A device for determining a stress level of a person and providing feedback on a basis of the stress level as determined, comprising:

a piece of furniture having an adjustable shape;

at least one body sensor configured to detect a stress related body parameter and integrated in a textile structure of the piece of furniture;

a stress assessing device which is configured to process input provided by the at least one body sensor, and configured to determine control parameters for controlling the shape of the piece of furniture, on a basis of the input provided by the at least one body sensor; and

a feedback device including a light source in the textile structure of the piece of furniture to treat at least a portion of the body of the person with infrared light in accordance with a stress level.

11. The device according to claim 10 , wherein the piece of furniture comprises a chair having a seat portion and a backrest wherein an angle between a seat portion and a backrest is adjustable.

12. The device according to claim 10 , further comprising at least one motion sensor configured to detect movement of the person and configured to provide input to the stress assessing device, wherein the stress assessing device processes input provided by both the at least one body sensor and the at least one motion sensor and determines control parameters for controlling the shape of the piece of furniture on the basis of the input provided by both the at least one body sensor and the at least one motion sensor.

13. A method for determining a stress level of a person and providing feedback aimed at minimizing the stress level, comprising the steps of;

measuring electrical signals which are representative of electrical activity inside the persons body by applying at least one body sensor which contacts the person's body, the at least one body sensor including a patch of electronically conductive textile material integrated in a textile structure;

analyzing the measured electrical signal in order to find a portion of the signal which is directly related to muscle tensions of the person; and

providing feedback in a form of an action aimed at reducing these muscle tensions of the person and a visual signal in accordance with is stress level of the person by LEDs embedded in the textile structure; and

providing a piece of furniture including the textile structure having an adjustable shape; and letting the person take place on the piece of furniture;

wherein the action aimed at reducing the muscle tensions of the person involves an adjustment of the shape of the piece of furniture.

14. The method according to claim 13 , wherein, in order to find a portion of the signal which is directly related to muscle tensions of the person, a portion of the signal that is directly related to heart activity of the person is determined and subtracted from the signal.

15. The method according to claim 13 , wherein the piece of furniture composes a chair, and wherein an adjustment of the shape of the piece of furniture involves an adjustment of an angle between a seat portion and a backrest of the chair.

16. A device for carrying out the method according to claim 13 , comprising;

at least one body sensor including a conductive textile patch which measures electrical signals, the conductive textile patch integrated in a textile structure of the piece of furniture and is positioned in a part of the piece of furniture which is configured to support a extremity of the person such that the conductive textile patch measures the electrical signals at the extremity; and

a stress assessing device which analyzes the measured electrical signals, and determines control parameters for controlling the shape of the piece of furniture in accordance with the measured electrical signals.