FR3092761A1 - AID SYSTEM FOR RESYNCHRONIZING THE BIOLOGICAL CLOCK OF AN INDIVIDUAL - Google Patents

Abstract

The invention relates to a system for assisting the resynchronization of the biological clock of a person with circadian cycle disorders comprising at least one light device (2, 4, 8, 9, 10, 35, 36, 37, 41, 51, 62, 63, 65). The system includes at least one of two devices from a public address device (4), an odor generating device (5, 6, 7); said public address device (4) being configured to emit at least a first sound, a second sound and a third sound, said odor generating device (5, 6, 7) being configured to produce at least a first odor, a second odor and a third odor, said devices (4, 5, 6) , 7, 8) being configured to operate according to a predetermined cycle of 24 hours comprising at least a first phase, a second phase and a third phase. Abstract figure: Fig. 1

Description

AID SYSTEM FOR THE RESYNCHRONIZATION OF THE BIOLOGICAL CLOCK OF AN INDIVIDUAL

The invention relates to a system for assisting the resynchronization of the biological clock of an individual, in particular an elderly person living in a residential establishment for dependent elderly people (EHPAD) with visual disorders, such as a deficit of retinal cells or partial vision, very little exposure to natural daylight and also presenting behavioral disorders.

It is known from the state of the art that certain retinal cells of the human eye, called melanopsin ganglion cells, have major functions for the regulation of human biological rhythms and allow adjustment of the circadian clock, also known as the biological clock. The circadian clock is located in the hypothalamus of each individual and is composed of two suprachiasmatic nuclei each containing approximately 10,000 neurons. These two nuclei generate electrical activity varying over about 24 hours. This electrical activity is cyclically controlled by about fifteen genes, commonly called clock genes. The suprachiasmatic nuclei regulate various body functions and are linked to functions regulating appetite, sleep or body temperature. They also regulate hormone production. The biological clock imposes a rhythm between 11:30 p.m. and 10:00 p.m. depending on the individual. This biological clock is constantly resynchronized on a 24-hour cycle through daylight, darkness of night and other non-visual parameters such as the rotation of the earth. Said retinal cells receive daylight and will act on the day/night rhythm of the human body. Thus, light has effects on sleep, cognitive performance, the cardiovascular system, the secretion of certain hormones, cell division, the repair of Deoxyribonucleic Acid, better known as DNA, and the human metabolism in general. The hormones produced are, in particular, melatonin and cortisol. Melatonin contributes to the feeling of fatigue and reduced alertness. It is secreted when daylight tends to decrease. On the other hand, its concentration in the blood drops rapidly as soon as the individual is exposed to natural light. Another hormone called cortisol is then produced. Cortisol is a hormone that has an influence, in particular, on wakefulness and mood. Its concentration in the blood increases as soon as the individual is exposed to natural light. Moreover, it is also known that natural light promotes the synthesis of vitamin D, which contributes to the proper functioning of the immune system. In countries such as France or Germany, namely countries in which the periods of darkness are relatively long during the winter periods, the alternation of the cycles of light and darkness is largely disturbed. Indeed, many people are practically no longer exposed to natural light because their journeys are made at the beginning and end of the day when daylight is weak, or even absent because the sun has not yet risen or set. is already in bed. In addition, a majority of people working at night are also faced with this problem. These people are indeed very little exposed to daylight because they sleep during part of the day, when it is daylight. A well-known example of disruption of the circadian cycle concerns the individual traveling by plane crossing several time zones. This phenomenon is commonly called "jetlag" in English and occurs when the traveler's biological clock has not yet adapted to the sunrise and sunset times of their destination. The person traveling from west to east often faces some sleepiness in the evening when they arrive at their destination and also faces difficulty waking up in the morning. In addition, the person traveling from east to west tends to fall asleep earlier in the evening and wake up earlier in the morning compared to their usual bedtime and sunrise times. These symptoms are increased and last longer when the traveler crosses more than three or four time zones. The traveler's circadian cycle is disturbed and he therefore faces sleep disturbances at night, such as insomnia, and generally has an irresistible need to sleep during the day. The circadian cycle is usually disrupted for two or three days. For different reasons, it has been found that the circadian cycle of the elderly is also disturbed, in particular elderly people living in nursing homes because they tend to go out less over time and are thus less and less exposed to natural light. . This is manifested by a tendency to be tired towards the end of the afternoon, or at the very beginning of the evening, and to get up very early in the morning. These disorders increase the tendency to sleep during the day and to be awake during the night, even to wander a large part of the night. Circadian rhythm disturbances in the elderly also lead to psychiatric and neurological conditions such as cognitive decline, depression, anxiety or mood disorders.

In order to treat these disturbances of the biological clock in the elderly, specific diets, medications or activities at regular times have been proposed, but these solutions have been found not to be effective. It has also been proposed in the prior art to create artificial light reproducing daylight. The individual with disorders relating to the circadian cycle is exposed to high intensity light for 30 minutes to 60 minutes and this at a particular time. For example, the individual is exposed to white light of 5,000 to 10,000 lux at the desired wake-up time, daily. The individual decreases his exposure to light in the evening before bedtime. It is sometimes also prescribed, in addition, a tablet of melatonin to help the individual fall asleep at a specific time.

It has been found that these various solutions were not satisfactory for people with vision disorders or a deficit of retinal cells, which is particularly the case for the elderly. Indeed, as we age, the eye becomes less and less sensitive to the color of light and to contrasts because the melanopsin ganglion cells, which are photoreceptor cells present in the eye, tend to lose their efficiency with age. In addition, the lights installed in nursing homes have characteristics that do not allow a therapeutic impact on the human body. Consequently, treatments consisting in exposing individuals with a visual impairment, such as certain elderly people, to artificial light are not very effective and do not make it possible to correctly treat the disruptions of their circadian cycles.

The object of the invention is to overcome the drawbacks of the prior art by proposing a system for assisting the resynchronization of the biological clock of an individual, in particular an elderly person living in an EHPAD.

To do this, the present invention thus relates, in its broadest sense, to a system for assisting the resynchronization of the biological clock of a person with circadian cycle disorders, in particular a person housed in an Establishment Accommodation for Dependent Elderly Persons (EHPAD), comprising at least one light device characterized in that said system comprises at least one of the two devices from among a sound device, a device for producing odors; said sound device being configured to emit at least a first sound, a second sound and a third sound, said smell producing device being configured to produce at least a first smell, a second smell and a third smell, said devices being configured to operate according to a predetermined 24-hour cycle comprising at least a first phase, a second phase and a third phase involving during the first phase at least said first sound or at least said first smell, during the second phase at least said second sound or at least said second smell and during the third phase at least said third sound or at least said third smell, said luminous device diffusing a greater light intensity between the start of the first phase and the end of the third phase than before the start of the first phase and after the end of the third phase.

Preferably, said first odor is an energizing odor, said second odor is an appetizing odor and said third odor is a relaxing odor.

According to a preferred mode, said first odor is a perfume comprising Methyl-3,4-methylene-dioxyhydrocinnamaldehyde, Hexyl cinnamal, Nerol, Octahydrotetramethyl-2-naphthalenylethanone, 3-Methylcyclopentadecenone, Acetyl cedrene, Geraniol, Estragole, alpha-Isomethyl ionone, or a fragrance containing Ethoxymethoxy cyclododecane, Citral, Geranyl acetate, Hexyl salicylate, Linalyl acetate, L-Carvone, d-limonene, 3-p-cumenyl-2-methylpropionaldehyde, Methyl-3-,4-methylene-dioxyhydrocinnamaldehyde, Damascenone, Allyl cyclohexylpropionate, 6,7-Dihydro-1,1,2,3,3-pentamethyl-4-(5H)-indanone, Menthone (trans-p-Menthan-3-one), Citronellol, or a flavor containing Hexyl salicylate, Nerol, Methyl-3,4-methylene-dioxyhydrocinnamaldehyde, Octahydrotetralmethyl-2-naphthalenylethanone, p-Isobutyl-alpha-methyl hydrocinnamaldehyde, beta-Pinene, 2,4-Dimethyl-3-cyclohexen-1-carboxaldehyde, alpha-Pinene , Damascenone, said second odor is a perfume comprising d-limonene, Octahydro-tetramethyl-2-n aphthalenylethanone, Linalool, Citral, beta-Pinene, Geraniol, alpha-Isomethyl ionone, alpha-Pinene, or a fragrance containing Benzyl salicylate, Hexyl cinnamal, Linalool, Hydroxyisohexyl 3-cyclohexene carboxaldehyde, 7-hydroxycitronellal, Ethyl methylphenylglycidate, Methyl-3 ,4-methylene-dioxyhydrocinnamaldehyde, cis-p-Menthan-7-ol, Methyl 2-nonynoate, methoxycarbonyloxycyclooct-4-ene, Cuminaldehyde, or a fragrance containing Citral, d-limonene, Hydroxyisohexyl 3-cyclohexene carboxaldehyde, Linalyl acetate, Linalool, Octahydro-tetramethyl-2-naphthalenylethanone, Methyl-3,4-methylene-dioxyhydrocinnamaldehyde, 7-hydroxycitronellal, Citronellol, beta-Pinene, Geraniol, trans-Anethole, 2,4-Dimethyl-3-cyclohexen-1-carboxaldehyde, alpha-Pinene, Geranyl acetate, Damascenone and said third scent is a fragrance comprising Octahydro-tetramethyl-2-naphthalenylethanone, d-limonene, 7-hydroxycitronellal, Linalool, Citronellol, Coumarin, 1-(2,2,6-Trimethylcyclohexyl) -3-hexanol, alpha-Pinene, Amyl cinnamal, Nopyl acetate, beta-Pinene, Eugenol, alpha-Isomethyl ionone, or a fragrance containing Coumarin, Linalool, d-limonene, Amyl cinnamal, 7-hydroxycitronellal, Cinnamyl alcohol, beta-Pinene, Vetiverol, or a fragrance containing Linalool, Linalyl acetate, d-limonene, Geranyl acetate, Coumarin, Musk ketone, 7-hydroxycitronellal, 1-Octen-3-yl acetate, Geraniol, beta-Pinene.

Preferably, said first sound is a sound imitating nature, in particular forest noises, said second sound is jazz music or a song from the youth of the person accommodated in the EHPAD and said third sound is Zen music .

Advantageously, said first phase begins around 6 a.m. and ends around 8 a.m., said second phase begins around 11 a.m. and ends around 2 p.m. and said third phase begins around 4 p.m. and ends around 9 p.m.

According to a variant of the invention, the system further comprises an image broadcasting device configured to broadcast a sunrise during said first phase and a sunset during said third phase.

Preferably, the system further comprises at least one light emitting diode (2, 36, 65) configured to produce a light temperature of approximately 1800 K.

Advantageously, the system further comprises at least one panel comprising light-emitting diodes configured to produce a light temperature of approximately 3000 K until the end of the first phase, of approximately 6000 K between the end of the first phase and the beginning of the third phase, and about 3000 K after the end of the third phase.

According to a variant of the invention, the system further comprises at least one reproduction of an artificial sky, in particular a sky comprising stars or cloudscapes.

Preferably, said luminous device is configured to produce light having a Color Rendering Index of at least 96 and comprising at least one wavelength comprised between approximately 460 nm and approximately 480 nm and a lower wavelength or equal to 380 nm.

Several embodiments of the present invention will be described below, by way of non-limiting examples, with reference to the appended figures in which:

illustrates a perspective view of a living room comprising the system according to a first embodiment of the invention;

is a schematic representation, in top view, of a set of rooms consisting of a corridor for walking, a sleeping room and a living room, said set of rooms comprising the system according to a second mode of realization of the invention;

schematically illustrates said walking corridor shown in Figure 2;

depicts a close-up view of said fall back to sleep lounge shown in Figure 2;

shows a close-up view of said living room shown in Figure 2;

illustrates a schematic representation, in top view, of a living room comprising the system according to a third embodiment of the invention.

Figure 1 schematically illustrates a living room 1 located in an Accommodation Establishment for Dependent Elderly People, better known by the acronym EHPAD. It is a place of collective living in which dependent elderly people meet in order to have, for example, social interactions with other residents. They can thus play board games, cards, have discussions, etc. Living room 1 is equipped with a biological clock resynchronization assistance system for people with circadian cycle disruption, according to a first embodiment of the invention. The system, fitted to living room 1, is configured to reproduce a 24-hour cycle comprising a first phase from 6 a.m. to 8 a.m., a second phase from 11 a.m. to 2 p.m. and a third phase from 4 p.m. to 9 p.m. It should be noted that the times mentioned are approximate throughout the description of the invention. Thus, when it is mentioned, for example, "6 a.m.", it should read "about 6 a.m.". The system comprises luminaires 2 having a light temperature of approximately 1800 K, also called 1800 K luminaires. The 1800 K luminaires 2 are arranged on the ceiling 3 of the living room 1 and are spaced apart about three meters. The spacing between the luminaires 2 depends on the color of the walls. The spacing is about three meters for white walls and about one meter for darker walls so as to have an intensity on the ground substantially equivalent to that of white walls. Luminaires 2 to 1800 K produce an orange-colored light so as to promote the production of melatonin. The system also comprises luminaires 8, also called 5500 K luminaires, arranged on the ceiling 3, producing light having a Color Rendering Index of at least 96, better known by the acronym CRI, and comprising at least one wavelength between 460 nm and 480 nm and at least one wavelength less than or equal to 380 nm, and a light temperature of approximately 5500 K. The luminaires 8 also include the wavelength ranges that found in classic lighting fixtures. In another embodiment of the invention, the light temperature is between 5000 K and 6000 K. Light having a wavelength between 460 nm and 480 nm makes it possible to promote the production of the hormone of the awakening, namely cortisol and light having a wavelength of less than 380 nm comprises UV-A, namely Ultra-Violet A, and UV-B, namely Ultra-Violet B, allowing a stimulating effect on metabolism and endocrine glands. UV-B will in particular allow the synthesis of vitamin D essential for the proper functioning of bones and muscles and also for the cells of the brain, prostate, breast, colon, immune system and the prevention of certain cancers. . The 8 to 5500 K luminaires emit light representing 100% of the light intensity available from 7 a.m. to 6 p.m. The configuration of the luminaires depends on the color of the walls, the height of the ceiling, the color of the floor and, more generally, the color of the materials used in the room in which the invention is implemented. In an alternative embodiment of the first embodiment of the invention, the luminaires 8 emit light representing 50% of the light intensity available from 7 a.m. to 8 a.m., then 100% from 8 a.m. to 5 p.m. and finally 50% from 5 p.m. 6 p.m. with the aim of obtaining respectively a progressive illumination at the start of the first phase of the cycle and a progressive obscuration at the start of the third phase of the cycle, thus making it possible to reproduce the increase in luminosity during sunrise and the attenuation of luminosity at sunset. The living room 1, equipped with the system according to the invention, also includes a window 13 behind which is located a screen broadcasting a sunrise or a sunset. Sunrise is broadcast at the beginning of the first phase, i.e. around 7 a.m. until around 8 a.m., and sunset is broadcast around the middle of the third phase, i.e. around 6 p.m. until around 7 p.m. Ceiling 3 also has multiple speakers 4 configured to deliver energizing or uplifting sounds, such as music, in the morning between about 6 a.m. and about 8 a.m. during the first phase of the 24-hour cycle. In this first embodiment of the invention, the sounds coming from the loudspeakers 4 are forest and/or nature noises such as birdsong or the rustling of leaves in the trees. During this same time slot, i.e. from 6 a.m. to 8 a.m., luminaires 2 to 1800 K emit light representing 100% of the available light intensity. Before 6 a.m., luminaires 2 at 1800 K emit light representing 50% of the available light intensity. In addition, luminaires 2 to 1800 K include a person detection system. When a person is detected, the 2 to 1800 K luminaires emit light representing 100% of the available light intensity. The system according to the invention further comprises a first odor diffuser 5 diffusing a stimulating perfume such as a lemon, cypress, bergamot, mint or rosemary odor, a second odor diffuser 6 diffusing a stimulating the appetite such as a smell of cinnamon, orange, chocolate or coffee and a third scent diffuser 7 diffusing a relaxing or soothing scent such as a smell of orange blossom, lavender, shell marjoram or ylang ylang. The odor diffusers diffuse their respective odors by forced air, through small balls containing the odors, and are arranged high up, about 2 meters from the ground, on a wall shelf, thus allowing good odor diffusion throughout the living room. of life 1. The perfumes diffused by the first, second and third odor diffusers are synthetic perfumes. Alternatively, the first odor diffuser 5 diffuses a stimulating perfume comprising the following compounds: Methyl-3,4-methylene-dioxyhydrocinnamaldehyde, Hexyl cinnamal, Nerol, Octahydrotetramethyl-2-naphthalenylethanone, 3-Methylcyclopentadecenone, Acetyl cedrene, Geraniol, Estragole , alpha-Isomethyl ionone. In another alternative, the first odor diffuser 5 diffuses a stimulating fragrance comprising the following compounds: Ethoxymethoxy cyclododecane, Citral, Geranyl acetate, Hexyl salicylate, Linalyl acetate, L-Carvone, d-limonene, 3-p-cumenyl-2 -methylpropionaldehyde, Methyl-3-,4-methylene-dioxyhydrocinnamaldehyde, Damascenone, Allyl cyclohexylpropionate, 6,7-Dihydro-1,1,2,3,3-pentamethyl-4-(5H)-indanone, Menthone (trans-p -Menthan-3-one), Citronellol. In another alternative, the first scent diffuser 5 diffuses a stimulating perfume comprising the following compounds: Hexyl salicylate, Nerol, Methyl-3,4-methylene-dioxyhydrocinnamaldehyde, Octahydrotetramethyl-2-naphthalenylethanone, p-Isobutyl-alpha-methyl hydrocinnamaldehyde , beta-Pinene, 2,4-Dimethyl-3-cyclohexen-1-carboxaldehyde, alpha-Pinene, Damascenone. Alternatively, the second scent diffuser 6 diffuses an appetite-stimulating fragrance comprising the following compounds: d-limonene, Octahydro-tetramethyl-2-naphthalenylethanone, Linalool, Citral, beta-Pinene, Geraniol, alpha-Isomethyl ionone, alpha -Pinene. In another alternative, the second scent diffuser 6 diffuses an appetite-stimulating fragrance comprising the following compounds: Benzyl salicylate, Hexyl cinnamal, Linalool, Hydroxyisohexyl 3-cyclohexene carboxaldehyde, 7-hydroxycitronellal, Ethyl methylphenylglycidate, Methyl-3,4 -methylene-dioxyhydrocinnamaldehyde, cis-p-Menthan-7-ol, Methyl 2-nonynoate, methoxycarbonyloxycyclooct-4-ene, Cuminaldehyde. In another alternative, the appetite stimulating perfume includes the following compounds: Citral, d-limonene, Hydroxyisohexyl 3-cyclohexene carboxaldehyde, Linalyl acetate, Linalool, Octahydro-tetramethyl-2-naphthalenylethanone, Methyl-3,4-methylene-dioxyhydrocinnamaldehyde , 7-hydroxycitronellal, Citronellol, beta-Pinene, Geraniol, trans-Anethole, 2,4-Dimethyl-3-cyclohexen-1-carboxaldehyde, alpha-Pinene, Geranyl acetate, Damascenone. Alternatively, the third scent diffuser 7 diffuses a soothing or relaxing fragrance comprising the following compounds: Octahydro-tetramethyl-2-naphthalenylethanone, d-limonene, 7-hydroxycitronellal, Linalool, Citronellol, Coumarin, 1-(2,2, 6-Trimethylcyclohexyl)-3-hexanol, alpha-Pinene, Amyl cinnamal, Nopyl acetate, beta-Pinene, Eugenol, alpha-Isomethyl ionone. In another alternative, the third scent diffuser 7 diffuses a soothing or relaxing fragrance comprising the following compounds: Coumarin, Linalool, d-limonene, Amyl cinnamal, 7-hydroxycitronellal, Cinnamyl alcohol, beta-Pinene, Vetiverol. In another alternative, the third scent diffuser 7 diffuses a soothing or relaxing fragrance comprising the following compounds: Linalool, Linalyl acetate, d-limonene, Geranyl acetate, Coumarin, Musk ketone, 7-hydroxycitronellal, 1-Octen-3- yl acetate, Geraniol, beta-Pinene. The first odor diffuser 5 diffuses its stimulating perfume such as a lemon, cypress, bergamot, mint, rosemary odor or one of the perfumes diffused by the odor diffuser 5 mentioned above, during the first phase of the cycle, from 6 a.m. to 8 a.m. The second phase of the cycle begins around 11 a.m. and ends around 2 p.m. During this second phase, the luminaires 8 produce light corresponding to 100% of the available light intensity. The scent diffuser 6 diffuses a scent stimulating the appetite such as the scent of cinnamon, orange, chocolate or coffee or one of the scents diffused by the scent diffuser 6 mentioned above. The 4 speakers emit music such as jazz or a song from the youth of the person housed in the EHPAD from 11 a.m. to 1 p.m. and music such as the sound produced by Tibetan bowls from 1 p.m. to 2 p.m. The light produced by the 8 luminaires, the stimulating fragrance produced by the 6 scent diffuser and the music from the 4 loudspeakers stimulate the sight, smell and hearing of the dependent elderly person. The multiplication of stimulated sensory channels thus allows a faster and more stable resynchronization of the biological clock over time. The production of melatonin and cortisol is thus improved whether for people with visual impairment or for people without it. In an alternative embodiment of the invention, in particular when dependent elderly people have hearing problems, the loudspeakers 4 are not implemented. In yet another alternative embodiment of the invention, in particular when dependent elderly people have olfactory disorders, odor diffusers are not used. The third phase of the 24-hour cycle begins around 4 p.m. and ends at 9 p.m. During this phase, luminaires 2 at 1800 K emit light representing 100% of the available light intensity and this from 6 p.m. to 9 p.m. After 9 p.m., they emit light representing 30 to 50% of the available light intensity until 7 a.m. the next morning, namely the start of the first phase of a new cycle, except when a person is detected. 1800K emits light representing 100% of the available light intensity. Lights 8 no longer produce light from 5 p.m. until 7 a.m. the next morning. The third scent diffuser 7 diffuses, from 6 p.m. to about 9 p.m., a soothing or relaxing scent such as a scent of orange blossom, lavender, shell marjoram or ylang ylang or one of the scents diffused by the odor diffuser 7 mentioned above. In addition, 4 speakers produce relaxing music, such as the sound produced by Tibetan bowls, from 6 p.m. to about 9 p.m. In an alternative embodiment of the invention, the system further comprises, on the ceiling 3, a reproduction of a starry sky 9 using optical fibers emitting light at their ends and thus simulating a multitude of stars on a background noir. The reproduction of a starry sky 9 is activated after the end of the third phase, namely around 9 p.m., and this until the start of the first phase the next morning, namely around 6 a.m. Light-producing devices 2 emit light representing 100% of the available light intensity from 6 p.m. to 9 p.m. After 9 p.m., they produce 50% of the available light intensity until 6 a.m. the next morning, except when a person is detected, luminaires 2 at 1800 K emit light representing 100% of the available light intensity. In another alternative embodiment of the invention, the system also comprises panels 10 comprising light-emitting diodes, better known by the acronym LED, producing a blue color over a light temperature range of 3000 K to 6000 K. From the end of the first phase, namely 8 a.m., until the start of the third phase, namely 4 p.m., the panels 10 emit light having a light temperature of 6000 K and, outside this range, the panels 10 emit light with a light temperature of 3000K. In yet another embodiment of the invention, the system also comprises a first panel 11 and a second panel 12, representing daytime cloudy skies, fixed to the ceiling 3. The first panel 11 and the second panel 12 are artificial representations of cloudy skies and improve the effect of retiming. The panels are backlit and the light is diffused by transparency. In addition, they have a beveled frame, thus providing an effect of depth and improved realism.

Fixtures 2 at 1800 K, luminaires 8 at 5500 K, first odor diffuser 5, second odor diffuser 6, third odor diffuser 7 and loudspeakers 4 work in coordination at the using an electronic coordination system, such as a computer, performing the first phase, the second phase and the third phase of the 24-hour cycle. In the alternative embodiments of the invention, the coordination system also coordinates the panels 10, the first panel 11 and the second panel 12. The system thus makes it possible to stimulate the person's sight, smell and hearing. aged and therefore obtain a faster and more stable resynchronization over time. Simultaneous stimulation, by the system according to the invention, of sight and smell or of sight and hearing also makes it possible to obtain rapid and stable resynchronization over time, but with an efficiency lower than a simultaneous stimulation of sight, smell and hearing by the system according to the invention.

Figure 2 illustrates a second embodiment of the system according to the invention, the system also being implemented in an EHPAD. You can see a schematic representation of the building parts of the EHPAD in which the system is installed. The building comprises a living room 21, a wandering corridor 22, a re-asleep living room 23. The walking corridor 22 is arranged between the living room 21 and the re-asleep living room 23. It communicates with the re-asleep living room 23 by through a first opening 24 and, with the living room 21, through a second opening 25. Consequently, the falling asleep living room 23 is located opposite the living room 21. By elsewhere, the walking corridor 22 has substantially the shape of a square. The aim of the 23 fall back to sleep lounge is to help dependent elderly people fall back asleep after waking up during the night.

Referring now to Figure 3, we can see the walking corridor 22 closely equipped with the system according to the invention. The wandering corridor 22 comprises, on each of its sides, two loudspeakers 34. Thus, in total, the wandering corridor 22 comprises eight loudspeakers 34 so as to widely diffuse the sounds. In addition, it comprises luminaires 35 emitting light comprising at least one wavelength between 460 nm and 480 nm and at least one wavelength less than or equal to 380 nm, a CRI of 96 and a light temperature 5500 K. The 35 luminaires also feature the wavelength ranges found in conventional luminaires. The walking corridor 22 comprises, on each of its sides, three lights 35, ie twelve lights 35 in total. It also comprises luminaires 36 having a light temperature of approximately 1800 K spaced apart from each other by approximately three meters and panels 37 comprising light-emitting diodes, better known by the acronym LED, producing a blue color over a range light temperature from 3000 K to 6000 K. Smell diffusers 38 are also arranged on each corner of the walking corridor 22, i.e. a total of four smell diffusers 38.

FIG. 4 schematically represents the falling asleep lounge 23. The system according to the invention is also installed there. It comprises two loudspeakers 34, four lights 36 having a light temperature of approximately 1800 K, a reproduction of a starry sky 39 using optical fibers emitting light at their ends and thus simulating a multitude of stars on a background black and a first screen 40 configured to broadcast a relaxing scene such as an aquarium containing fish. In addition, the fall back to sleep lounge 23 has four armchairs 41 allowing dependent elderly people to settle down and fall back to sleep. The entrance to the fall back to sleep lounge has light-emitting diodes producing bright light with a wavelength between 400 nm and 700 nm so as to attract the attention of the elderly and thus encourage them to go to the said fall back to sleep lounge.

There is shown schematically in Figure 5 the living room 21 in which the system according to the invention is installed. The living room 21 is substantially rectangular in shape. It comprises four loudspeakers 34 located respectively at the four corners of the living room 21, three representations of cloudy daytime sky 51, four odor diffusers 38 arranged respectively around the four corners of the living room 21, lights 35 emitting light having a wavelength between 460 nm and 480 nm, luminaires 36 having a light temperature of approximately 1800 K, panels 37 comprising light-emitting diodes, better known by the acronym LED, producing a blue color on a light temperature range of 3000 K to 6000 K, a reproduction of a starry sky 39 using optical fibers emitting light at their ends and thus simulating a multitude of stars on a black background and a second screen configured to diffuse a sunrise or sunset. In the second embodiment of the invention, the system is configured to reproduce a 24-hour cycle comprising a first phase from 6 a.m. to 8 a.m., a second phase from 11 a.m. to 2 p.m. and a third phase from 4 p.m. to 9 p.m. Luminaires from 35 to 5500 K emit light representing 100% of the light intensity available from 7 a.m. to 6 p.m. The loudspeakers 34 broadcast sounds, such as music or noises from the forest and/or nature such as birdsong or the rustling of leaves in the trees, energizing or stimulating between about 6 o'clock and about 8 a.m., during the first phase of the 24-hour cycle. During this same time slot, i.e. from 6 a.m. to 8 a.m., the 36 to 1800 K luminaires emit light representing 100% of the available light intensity. Before 6 a.m., the 36 to 1800 K luminaires emit light representing 50% of the available light intensity, except when a person is detected the 36 to 1800 K luminaires emit light representing 100% of the available light intensity. The 38 scent diffusers diffuse a first, stimulating fragrance during the first phase of the cycle, around 6 a.m. until around 8 a.m. The second phase of the cycle begins around 11 a.m. and ends around 2 p.m. During this second phase, 35 to 5500 K luminaires produce light corresponding to 100% of the available light intensity. The 38 scent diffusers diffuse a second scent, stimulating the appetite. The speakers 34 emit music such as jazz or a song of the youth of the old person from 11:00 a.m. to 1:00 p.m. and music such as the sound produced by Tibetan bowls from 1:00 p.m. to 2:00 p.m. The third phase of the 24-hour cycle begins around 4 p.m. and ends at 9 p.m. During this phase, the 36 to 1800 K luminaires emit light representing 100% of the available light intensity and this from 6 p.m. to 9 p.m. After 9 p.m., they emit light representing 30 to 50% of the available light intensity until 7 a.m. the following morning, except when a person is detected the 36 to 1800 K luminaires emit light representing 100% of the available light intensity , namely at the beginning of the first phase of a new cycle. The 35 to 5500 K luminaires no longer produce light from 5 p.m. until 7 a.m. the next morning. The 38 scent diffusers diffuse, from 6 p.m. to 9 p.m., a third scent, soothing or relaxing, such as the scent of orange blossom, lavender, shell marjoram or ylang ylang. In addition, the speakers 34 produce relaxing music, such as the sound produced by Tibetan bowls or Zen music, from 6:00 p.m. to about 9:00 p.m.

There is shown in Figure 6 a third embodiment of the system according to the invention. The system is installed in living room 61 of an EHPAD. It features three 62 light emitting diode panels, commonly known by the acronym LED, producing white color over a light temperature range of 3000K to 6000K and having a CRI of 90 or less, four 63 fluorescent tube panels with a power of 18 W each, having a light temperature of 5500 K, a Color Rendering Index of 96 and a length between 460 nm and 480 nm, an odor diffuser 64, fifteen light-emitting diodes 65 having a light temperature of 1800 K, two representations of daytime cloudy skies 66, a video projector screen 67 and a video projector 68 configured to broadcast on the screen 67 a sunrise or a sunset. The system also includes speakers (not shown).

In the third embodiment of the invention, the system is configured to reproduce a 24-hour cycle comprising a first phase from 6 a.m. to 8 a.m., a second phase from 11 a.m. to 2 p.m. and a third phase from 4 p.m. to 9 p.m. Panels with 63 to 5500 K fluorescent tubes emit light representing 100% of the available light intensity from 7 a.m. to 6 p.m. The loudspeakers broadcast sounds, such as music or noises from the forest and/or nature such as birdsong or the rustling of leaves in the trees, energizing or stimulating between 6 a.m. and 8 a.m., during of the first phase of the 24-hour cycle. During this same time slot, namely from 6 a.m. to 8 a.m., the 65 to 1800 K light-emitting diodes emit light representing 100% of the available light intensity. Before 6 a.m., the 65 to 1800 K light-emitting diodes emit light representing 50% of the available light intensity, except when a person is detected the 65 to 1800 K light-emitting diodes emit light representing 100% of the available light intensity. The 64 scent diffuser diffuses a first stimulating fragrance during the first phase of the cycle, around 6 a.m. until 8 a.m. The second phase of the cycle begins around 11 a.m. and ends around 2 p.m. During this second phase, panels with 63 to 5500 K fluorescent tubes produce light corresponding to 100% of the available light intensity. The 64 scent diffuser releases a second appetite-stimulating scent. The speakers play music such as jazz from 11 a.m. to 1 p.m. and music such as the sound produced by Tibetan bowls from 1 p.m. to 2 p.m. The third phase of the 24-hour cycle begins around 4 p.m. and ends at 9 p.m. During this phase, the 65 to 1800 K light-emitting diodes emit light representing 100% of the available light intensity and this from 6 p.m. to 9 p.m. After 9 p.m., they emit light representing 30 to 50% of the available light intensity until 7 a.m. the following morning, except when a person is detected the 65 to 1800 K light-emitting diodes emit light representing 100% of the light intensity available, namely the beginning of the first phase of a new cycle. The panels with fluorescent tubes 63 at 5500 K no longer produce light from 5 p.m. until 7 a.m. the following morning. The 64 scent diffuser diffuses, from 6 p.m. to 9 p.m., a third soothing or relaxing scent such as a sweet orange scent. Also, the speakers play relaxing music, such as the sound produced by Tibetan bowls, from 6 p.m. to around 9 p.m.

In yet another embodiment of the invention, and in addition to one of the three embodiments, the system further comprises a luminous representation of the moon placed on the ceiling of one of the rooms, for example the living room of life.

The system according to the invention can also be implemented in a hospital, a hotel, a house or any other place accommodating people with an out of sync biological clock.

Claims (10)

System to help resynchronize the biological clock of a person with circadian cycle disorders, in particular a person accommodated in a Accommodation Establishment for Dependent Elderly Persons (EHPAD), comprising at least one light device (2 , 4, 8, 9, 10, 35, 36, 37, 41, 51, 62, 63, 65) characterized in that said system comprises at least one of the two devices among a sound system (4), a odor generating device (5, 6, 7); said public address device (4) being configured to emit at least a first sound, a second sound and a third sound, said odor generating device (5, 6, 7) being configured to produce at least a first odor, a second odor and a third odor, said devices (4, 5, 6, 7, 8) being configured to operate according to a predetermined cycle of 24 hours comprising at least a first phase, a second phase and a third phase involving the first phase phase at least said first sound or at least said first odor, during the second phase at least said second sound or at least said second odor and during the third phase at least said third sound or at least said third odor, said lighting device (2, 4, 8, 9, 10, 35, 36, 37, 41, 51, 62, 63, 65) diffusing a greater light intensity between the start of the first phase and the end of the third phase than before the start of the first phase and after the end of the third phase. System according to claim 1 characterized in that said odor producing device (5, 6, 7) is configured to produce a first energizing odor, a second palatable odor and a third relaxing odor. System according to Claim 2, characterized in that the said first odor is a perfume comprising Methyl-3,4-methylene-dioxyhydrocinnamaldehyde, Hexyl cinnamal, Nerol, Octahydrotetramethyl-2-naphthalenylethanone, 3-Methylcyclopentadecenone, Acetyl cedrene, Geraniol, Estragole, alpha -Isomethyl ionone, or a fragrance comprising Ethoxymethoxy cyclododecane, Citral, Geranyl acetate, Hexyl salicylate, Linalyl acetate, L-Carvone, d-limonene, 3-p-cumenyl-2-methylpropionaldehyde, Methyl-3-, 4-methylene- dioxyhydrocinnamaldehyde, Damascenone, Allyl cyclohexylpropionate, 6,7-Dihydro-1,1,2,3,3-pentamethyl-4- (5H) -indanone, Menthone (trans-p-Menthan-3-one), Citronellol, or a perfume comprising Hexyl salicylate, Nerol, Methyl-3,4-methylene-dioxyhydrocinnamaldehyde, Octahydrotetralmethyl-2-naphthalenylethanone, p-Isobutyl-alpha-methyl hydrocinnamaldehyde, beta-Pinene, 2,4-Dimethyl-3-cyclohexen-1-carboxaldehyde , alpha-Pinene, Damascenone, said second odor is a perfume comprising d-li monene, Octahydro-tetramethyl-2-naphthalenylethanone, Linalool, Citral, beta-Pinene, Geraniol, alpha-Isomethyl ionone, alpha-Pinene, or a fragrance comprising Benzyl salicylate, Hexyl cinnamal, Linalool, Hydroxyisohexyl 3-cyclohexene, 7- carboxaldehyde hydroxycitronellal, Ethyl methylphenylglycidate, Methyl-3,4-methylene-dioxyhydrocinnamaldehyde, cis-p-Menthan-7-ol, Methyl 2-nonynoate, methoxycarbonyloxycyclooct-4-ene, Cuminaldehyde, or a fragrance containing Citral, d-limonohexyl 3-cyclohexene carboxaldehyde, Linalyl acetate, Linalool, Octahydro-tetramethyl-2-naphthalenylethanone, Methyl-3,4-methylene-dioxyhydrocinnamaldehyde, 7-hydroxycitronellal, Citronellol, beta-Pinene, Geraniol, trans-Dimethole, 2,4-Dimethole, 2,4-Dimethole 3-cyclohexen-1-carboxaldehyde, alpha-Pinene, Geranyl acetate, Damascenone and said third scent is a fragrance comprising Octahydro-tetramethyl-2-naphthalenylethanone, d-limonene, 7-hydroxycitronellal, Linalool, Citronellol, Coumarin, 1- ( 2,2,6-Trimethylcycl ohexyl) -3-hexanol, alpha-Pinene, Amyl cinnamal, Nopyl acetate, beta-Pinene, Eugenol, alpha-Isomethyl ionone, or a fragrance comprising Coumarin, Linalool, d-limonene, Amyl cinnamal, 7-hydroxycitronellal, Cinnamyl alcohol , beta-Pinene, Vetiverol, or a fragrance comprising Linalool, Linalyl acetate, d-limonene, Geranyl acetate, Coumarin, Musk ketone, 7-hydroxycitronellal, 1-Octen-3-yl acetate, Geraniol, beta-Pinene. System according to Claim 1, characterized in that said sound device (4) is configured to emit a first sound imitating nature, in particular sounds of the forest, a second sound which is jazz music or a song from the youth of the person accommodated in the EHPAD and a third sound which is Zen music. System according to any one of claims 1 to 4, characterized in that it comprises an electronic coordination system configured so that said first phase begins around 6 a.m. and ends around 8 a.m., said second phase begins around 11 a.m. and ends around 2 p.m. and said third phase begins around 4 p.m. and ends around 9 p.m. System according to any one of claims 1 to 5 characterized in that it further comprises an image diffusion device (13, 40, 52, 67, 68) configured to diffuse a sunrise during said first phase and a sunset during said third phase. System according to any one of claims 1 to 6 characterized in that it further comprises a second light device (2, 36, 65) configured to produce a light temperature of approximately 1800 K. System according to any one of claims 1 to 7 characterized in that it further comprises a third light device (10, 37, 62) configured to produce a light temperature of about 3000 K until the end of the first phase, about 6000 K between the end of the first phase and the start of the third phase, and about 3000 K after the end of the third phase. System according to any one of Claims 1 to 8, characterized in that it further comprises a device configured to reproduce an artificial sky (11, 12, 39, 66) using optical fibers or backlit panels, in particular a sky with stars or landscapes of clouds. System according to any one of claims 1 to 9 characterized in that at least one of said luminous devices (8, 35, 63) is configured to produce light having a Color Rendering Index of at least 96 and comprising at least one wavelength between approximately 460 nm and approximately 480 nm and a wavelength less than or equal to 380 nm.