WO2023200352A1 - Method for adaptively controlling the lighting conditions in a room - Google Patents

Abstract

The invention relates to methods for maintaining comfortable and healthy lighting conditions in rooms. A method for adaptively controlling the lighting conditions in a room includes: collecting, processing and evaluating data about the psychophysical state of a specific user, data about the user's states of sleep, wakefulness and the transitions therebetween (falling asleep and waking up), the parameter values of the lighting conditions in the room, and also data about whether the user experiences physiological comfort or discomfort; processing the obtained data in data collection, processing and evaluation devices and determining the relationships between the parameter values of the lighting conditions and the following: the user's psychophysical state, the user's states of sleep, wakefulness and the transitions therebetween, and also the data about physiological comfort or discomfort; subsequently predictively controlling the parameters of the lighting conditions with the aid of the data collection, processing and evaluation devices and the previously determined relationships, by generating control signals for lighting devices; updating and refining the determined relationships to achieve more precise predictive control of the lighting conditions.

Description

Method for adaptive lighting control in a room

Field of technology to which the invention relates

The invention relates to methods for maintaining comfortable and healthy lighting in rooms, mainly in institutions, enterprises, offices, apartments, cottages, etc.

State of the art

Currently, there are many technical devices designed to control indoor lighting. However, there are no technical solutions that could automatically adapt the lighting in a room individually to the current psychophysical state of a person, as well as influence changes in the psychophysical state of a person by changing lighting parameters.

A psychophysical state is a state of a person, reflecting both parameters of the mental (for example, anxiety, excitability, drowsiness) and physical (pulse, temperature, pressure, motor activity, etc.) state of a person.

A lighting control module, a lighting system that uses it, and a method for setting the dimming level (see [1] RU2017140988A, IPC N02B 33/02, published on May 27, 2019) are known from the prior art, containing connecting the lighting control module to the dimming interface; sending dimming settings from the configuration device to the lighting control module; storing the specified dimming setting in the lighting control module; using the power supplied by the lighting exciter to the dimming interface, powering the lighting control module and reading the stored dimming setting; and in the lighting driver, adjusting the dimming level based on the stored dimming setting and the measured ambient light level, the dimming setting being used to process the externally input dimming setting to change the scale of the dimming function.

The disadvantage of this analogue is the lack of ability to monitor the user’s condition and change the lighting parameters in the room based on data about the user’s condition. A device for controlling lighting in the premises of a public vehicle, in particular a railway vehicle, is known from the prior art (see [2] RU2017107143A, IPC B61D 29/00, publ. 09/07/2018), containing a variable lighting system located in the cabin, which includes: at least one external light sensor for detecting ambient lighting parameters outside the vehicle; at least one device for obtaining images of the interior space of the cabin; and a lighting system control unit configured to adjust the lighting in the passenger compartment depending on the brightness of the light measured from the outside of the vehicle and the acquired images of the interior of the passenger compartment.

The disadvantage of this technical solution is the lack of the ability to adaptively control lighting in a room based on data about the current psychophysical state of a person.

An intelligent lighting control system is known from the prior art (see [3] RU2011145306A, IPC N05B 37/02, published on May 20, 2013), containing a network that includes communication means and a plurality of control modules connected to these means, each module the control is configured to send, receive, and process program commands, information related to the operating state of the module and sensed environmental conditions, to and from network-connected other control modules; each control module includes stored parameters that define its operating characteristics, and each control module is configured to set the value of each parameter to a value selected from a set of stored operating values in response to a program command transmitted over the network; each control module includes a sensor for sensing an environmental condition selected from the group consisting of sunlight, artificial light, body movement within a defined area of interest, temperature, vibration and sound; each control module is configured to store information about the operating state of the device and information related to a sensed environmental condition, and each control module is configured to change a set value of one or more of its operating parameters to another value selected from a set of stored operating values of at least partly in response to environmental information or information about the operating status of the device, transmitted over the network from one or more control modules connected to the network.

The disadvantage of this technical solution is the lack of possibility of adaptive and predictive control of lighting in a room based on data about the current psychophysical state of a person.

A device and method for controlling lighting is known from the prior art (see [4] RU2692489C2, IPC N05V 33/08, published 06/25/2019). The lighting control method comprises the steps of: activating the lighting control device; fix the lighting control device on the object; receiving, through the lighting control device, one or more signals indicating motion imparted to the object; identifying, based on the one or more signals, one or more predetermined movements to which the assigned movement corresponds; and selecting one or more properties of light to be emitted by the one or more lighting units based on the identified one or more predetermined movements.

The disadvantage of this technical solution is the lack of the ability to adaptively control lighting in a room based on data about the current psychophysical state of a person.

A method and device for controlling lighting in an indoor space is known from the prior art (see [5] RU2642502C2, IPC N05B 37/02, published 01/25/2018). A method for controlling lighting in space contains the stages of: determining the orientation relative to the magnetic fields of the Earth or relative to the plumb line of the lighting device; determining the geographic location of said lighting device; determining at least one climate-related parameter for said geographic location and adjusting at least one output light characteristic of said lighting device based on said orientation and said climate-related parameter.

The disadvantage of this technical solution is the lack of the ability to adaptively control lighting in a room based on data about the current psychophysical state of a person.

Thus, solutions are known from the prior art that are aimed at controlling lighting without taking into account biofeedback, or taking into account limited number of biofeedback parameters. But at the moment there are no solutions that provide a full range of healthy and comfortable lighting parameters for a person based on a wide range of parameters of his psychophysical state.

5 Essence of the invention

The objective of the claimed invention is to adapt lighting parameters in a room based on data on the current psychophysical state of a person and/or on the basis of data formulated manually by a person and based on data on the state of sleep, wakefulness and

10 transient processes (falling asleep and waking up).

The technical result is to improve the lighting parameters in a room to values that most favorably influence human health, based on data on his individual psychophysical state, are most comfortable for perception by the human senses and improve the quality of sleep, wakefulness and transition processes (falling asleep and waking up).

The stated problem is solved, and the technical result is achieved through a method of adaptive control of lighting in a room based on the psychophysical state of the user, including: accumulation in

20 device for accumulating, processing and calculating data on the psychophysical state of a specific user in a specific period of time, data on the state of sleep, wakefulness and transient processes (falling asleep and waking up) of a specific user in a specific period of time, values of lighting parameters in the room in a specific period of time, and also data that the user experiences physiological comfort or discomfort during a specific period of time; the received data is processed in a device for storing, processing and computing data and establishing a relationship between the psychophysical state of the user and the values of the lighting parameters, between the quality of the state of sleep, wakefulness and transient processes of the user (falling asleep and waking up) and the values of the lighting parameters, as well as between the user’s tested physiological comfort or discomfort and lighting parameters; then, using a device for storing, processing and calculating data, predictive control of lighting parameters in the room is performed based on previously established relationships with the psychophysical state of the user, with the quality of the state of sleep, wakefulness and transient processes (falling asleep and awakening) of the user, and with the comfort or discomfort experienced by the user, by generating control signals to lighting devices and

5 devices that provide and block the entry of external lighting into the room; update and clarify established relationships to achieve the most accurate predictive lighting control.

Brief description of drawings

Fig. 1 - Block diagram of the adaptive lighting control method in

10 room.

Carrying out the invention

The method of adaptive lighting control in a room involves controlling the following parameters: wavelength, luminous flux, illumination, luminous intensity, direction, brightness, luminous efficiency, color temperature, color rendering index, ratio of natural and artificial lighting, etc. Control is carried out both in manual mode based on the values set by the user, and in automatic mode based on the psychophysical state of the user.

In automatic mode, control is carried out based on data about

20 the current psychophysical state of the user, for example, anxiety, excitability, drowsiness, pulse, temperature, pressure, motor activity, etc.; based on data on the state of sleep, wakefulness and transition processes (falling asleep and awakening); based on data on physiological comfort or discomfort, and based on data on lighting parameters inside and/or outside the room.

Adaptive lighting control in automatic mode is implemented in four stages.

At the first stage, accumulation occurs:

- data on the psychophysical state of a specific user during a specific period of time;

- data on the state of sleep, wakefulness and transient processes (falling asleep and waking up) of a specific user in a specific period of time; - values of lighting parameters (wavelength, luminous flux, illumination, luminous intensity, direction, brightness, luminous efficiency, color temperature, color rendering index, ratio of natural and artificial lighting, etc.) in a specific period of time;

- data that the user experiences physiological comfort or discomfort (subjective user sensations) associated with the lighting in the room during a specific period of time.

Data received from sensors of lighting parameters and from devices for reading the psychophysical state of the user and the quality of his state of sleep, wakefulness and transient processes (falling asleep and waking up) are transferred to devices for accumulating and processing data and calculating the relationships between the received data.

At the second stage, the received data is processed and relationships are established between the psychophysical state of the user and the values of lighting parameters; between the quality of the user’s sleep, wakefulness and transient processes (falling asleep and awakening) and the values of lighting parameters; between user-experienced physiological comfort or discomfort and lighting parameter values.

At the third stage, a device for accumulating and processing data and calculating relationships between the received data generates control signals for lighting devices and devices that provide and block the entry of external lighting into the room, due to which predictive control of lighting parameters in the room occurs based on previously established relationships with the psychophysical state of the user, with the comfort or discomfort experienced by the user, and with the quality of the sleep, wakefulness and transition processes (falling asleep and awakening) of the user.

At the fourth stage, the established relationships are updated and clarified to achieve the most accurate predictive control.

Optimal lighting values are calculated individually for each user (the wearer of devices for reading his psychophysical state and devices for assessing the quality of sleep, wakefulness and transition processes (falling asleep and awakening)).

The method is implemented as follows. Initially, the values of the parameters of the psychophysical state of the user, parameters of the quality of the state of sleep, wakefulness and transient processes of the user, as well as the physiological comfort or discomfort felt by him are read using devices and/or sensors for reading such parameters. By way of example, but not limitation, these could include smart bracelets, fitness trackers, neurotrackers, ECG T-shirts, video cameras, smart rings, smart pillows, blankets and much more.

They also read the lighting parameters inside and outside the room using sensors. These may be (by way of example, but not by way of limitation) sensors: wavelength, luminous flux, illumination, luminous intensity, luminous flux directionality, brightness, luminous efficiency, color temperature, color rendering index, etc.

Data obtained from sensors of lighting parameters and from devices and/or sensors for reading the psychophysical state of the user, parameters of the quality of the state of sleep, wakefulness and transient processes of the user, as well as the physiological comfort or discomfort felt by him, are transmitted to devices for storing and processing data and computing relationships between the obtained data.

The data accumulation, processing and computing device processes the received data and establishes a relationship between the psychophysical state of the user, the quality parameters of the user's sleep, wakefulness and transient processes, the physiological comfort or discomfort experienced by the user and the values of the lighting parameters, and determines the most appropriate values of the lighting parameters. For example: illumination 300 lux, color temperature 4200 K, luminous flux 900 lm - psychophysical indicators of a person are in the normal range, or illumination 600 lux, color temperature 6000 K, luminous flux 1500 lm - psychophysical indicators of a person are outside the normal range.

The most appropriate lighting parameter values are generated based on the default data and/or based on data from the user about the comfort/discomfort he experiences.

After processing the received information, the data accumulation, processing and calculation device generates control signals to lighting devices and devices that provide and block entry of external lighting into the room (for example: curtains, blinds, etc., including with a drive for automatic autonomous operation), which, having received appropriate control signals, influence the lighting in the room, changing its parameters. By way of example, and not by way of limitation, lighting devices may include: light bulbs, floor lamps, LED strips, chandeliers, bedside lamps, spotlights, etc.

The implementation of the claimed method makes it possible to improve the lighting parameters in a room to values that most favorably affect human health, based on data on his individual psychophysical state, data on the state of sleep, wakefulness and transient processes (falling asleep and waking up) of a particular user and the most comfortable for human sensations . Optimal values of lighting parameters are calculated individually for each user (carrier of devices for reading his psychophysical state).

Claims

CLAIM A method for adaptive control of lighting in a room based on the psychophysical state of the user, including: - accumulation in the device of accumulation, processing and calculation of data on the psychophysical state of a specific user in a specific period of time, data on the state of sleep, wakefulness and transient processes (falling asleep and awakening) of a specific user in a specific period of time, values of lighting parameters in the room in a specific period of time , as well as data that the user experiences physiological comfort or discomfort during a specific period of time; - the received data is processed in a device for storing, processing and computing data and establishing a relationship between the psychophysical state of the user and the values of the lighting parameters, between the quality of the state of sleep, wakefulness and transient processes (falling asleep and waking up) of the user and the values of the lighting parameters, as well as between the physiological state tested by the user comfort or discomfort and lighting parameters; - further, using a device for storing, processing and computing data, predictive control of lighting parameters in the room is performed based on previously established relationships with the psychophysical state of the user, with the quality of the state of sleep, wakefulness and transient processes (falling asleep and awakening) of the user, and with the comfort tested by the user or discomfort, by generating control signals to lighting devices and devices that provide and block the entry of external lighting into the room; - update and clarify established relationships to achieve the most accurate predictive lighting control. 9