Method and system for providing sleep care

Abstract

Embodiments of the present disclosure provide a method and system for providing sleep care for an occupant in a vehicle by controlling a device in the vehicle based on sleep information received through an input unit or a sleep state monitored through a sensor portion.

Description

Technical Field

[0001] The present disclosure relates to methods and systems for providing sleep care, which provide various functions for caring for the sleep of passengers in a vehicle while the vehicle is in motion or stationary. Background Art

[0002] With the development of autonomous driving technology, during the driving of a vehicle, other activities can be carried out in the vehicle in addition to driving. In other words, with the advent of the autonomous driving era, the convenience of passengers can be achieved by allowing them to relax in the vehicle. For example, autonomous vehicles allow passengers to sleep during vehicle driving.

[0003] However, due to various disturbances such as vehicle vibrations and external noises, the time allowed for sleeping in a moving vehicle is relatively short. In addition, if a passenger wakes up immediately after entering deep sleep in the vehicle, they may feel fatigued.

[0004] In addition, there may be multiple passengers in the vehicle. In some cases, not all passengers want to sleep. Even if all passengers want to sleep, their preferences for the sleep environment in the vehicle may vary in terms of sleeping comfortably.

[0005] In addition, passengers may have different destinations, which may result in different driving times within the vehicle. Accordingly, passengers may want different sleep times.

[0006] Therefore, in order to support the comfortable sleep of passengers in a vehicle, a device for obtaining sleep-related information about passengers, automatically determining whether a passenger is sleeping, and effectively controlling in-vehicle devices is needed. Summary of the Invention

[0007] Accordingly, the present disclosure aims to provide methods and systems for providing sleep care. More specifically, an object of the present disclosure is to provide methods and systems for providing sleep care, which provide various functions for caring for the sleep of passengers in a vehicle while the vehicle is in motion or stationary.

[0008] Another object of the present disclosure is to provide methods and systems for providing sleep care, which can control devices in a vehicle based on sleep information received through an input unit or a sleep state monitored using a sensor unit, thereby caring for the sleep of passengers.

[0009] Another object of the present disclosure is to provide methods and systems for providing sleep care, which can provide a customized sleep environment for each of multiple passengers in a vehicle.

[0010] Other advantages, objects, and features of the present disclosure will be set forth in part in the following description, become apparent to those skilled in the art upon reading the following, or can be learned by practicing the present disclosure. The objects and other advantages of the present disclosure can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0011] In one aspect of the present disclosure, a method for providing sleep care for passengers in a vehicle may include: receiving sleep information from a passenger through an input unit or monitoring the sleep state of the passenger through a sensor unit; and controlling a lighting device installed in the vehicle based on the received sleep information or the monitored sleep state, wherein controlling the lighting device may include: switching the lighting device to a sleep mode to care for the passenger's sleep; and switching the lighting device to a wake-up mode to induce the passenger to wake up.

[0012] The sensor unit may include a wearable type of biosensor wearable by the passenger, wherein the biosensor may monitor one or more vital signs of the passenger's brain waves, heart rate, electrocardiogram, or pulse.

[0013] The biosensor may be configured to: determine the characteristics of the vital signs based on a one-dimensional convolutional neural network (1D CNN); and classify the sleep state of the passenger based on the determined characteristics of the vital signs.

[0014] The classified sleep states may include one or more of a wake state, a rapid eye movement (REM) sleep state, or a non-REM sleep state.

[0015] The received sleep information may include one or more of travel time, target sleep time, preferred light color, or light brightness.

[0016] Controlling the lighting device may further include: controlling the lighting device installed in the vehicle based on the sleep information received from each of a plurality of passengers in the vehicle.

[0017] The lighting device may include ambient light, wherein controlling the lighting device may further include: controlling one or more of a variable sunroof or variable shading installed on the vehicle.

[0018] Switching to the sleep mode and switching to the wake-up mode include: changing one or more of the brightness of the ambient light, the transparency of the variable sunroof, or the transparency of the variable shading.

[0019] The method may further include: changing the vehicle to an autonomous driving mode based on the received sleep information or the monitored sleep state; and outputting information indicating the passenger's sleep to the outside of the vehicle.

[0020] The method may further include: controlling a seat or an audio device installed in a vehicle based on received sleep information or a monitored sleep state, wherein controlling the seat or the audio device may include: switching the seat or the audio device to a sleep mode to care for a passenger's sleep; and switching the seat or the audio device to a wake-up mode to induce the passenger to wake up.

[0021] The received sleep information may include one or more of a travel time, a target sleep time, a preferred seat position, a volume, or a sound type.

[0022] Controlling the seat or the audio device may further include: controlling the seat or the audio device installed in the vehicle based on sleep information received from each of a plurality of passengers in the vehicle.

[0023] The method may further include: controlling an air conditioning device installed in a vehicle based on received sleep information or a monitored sleep state, wherein controlling the air conditioning device may include: switching the air conditioning device to a sleep mode to care for a passenger's sleep; and switching the air conditioning device to a wake-up mode to induce the passenger to wake up.

[0024] The received sleep information may include one or more of a travel time, a target sleep time, a preferred internal temperature, an internal humidity, or an air flow intensity.

[0025] Controlling the air conditioning device may include: controlling the air conditioning device installed in the vehicle based on sleep information received from each of a plurality of passengers in the vehicle.

[0026] Switching to the sleep mode and switching to the wake-up mode include: changing one or more of a direction, a temperature, or an intensity of an air flow output from the air conditioning device.

[0027] The vehicle may further include a camera configured to capture an image of a change in a passenger's facial position and temperature, wherein controlling the air conditioning device may include: controlling the air conditioning device based on the captured image of the change in the facial position and temperature.

[0028] In another aspect of the present disclosure, a system for providing sleep care for a passenger in a vehicle may include: an input unit configured to receive sleep information from a passenger; a sensor unit configured to monitor a sleep state of the passenger; and a controller configured to control a lighting device installed in the vehicle based on the sleep information received through the input unit or the sleep state monitored through the sensor unit, wherein the controller may be configured to: switch the lighting device to a sleep mode to care for the passenger's sleep; and switch the lighting device to a wake-up mode to induce the passenger to wake up.

[0029] The controller can be configured to: control a seat or an audio device installed in a vehicle based on sleep information received through an input unit or a sleep state monitored by a sensor unit, switch the seat or the audio device to a sleep mode to care for the passenger's sleep; and switch the seat or the audio device to a wake-up mode to induce the passenger to wake up.

[0030] The controller can be configured to: control an air-conditioning device installed in a vehicle based on sleep information received through an input unit or a sleep state monitored by a sensor unit, switch the air-conditioning device to a sleep mode to care for the passenger's sleep; and switch the air-conditioning device to a wake-up mode to induce the passenger to wake up.

[0031] The method and system for providing sleep care according to the present disclosure can provide various functions for caring for the sleep of a passenger in a vehicle while the vehicle is moving or stationary.

[0032] In addition, it is also possible to control devices in the vehicle based on sleep information received through the input unit or a sleep state monitored using the sensor unit to care for the passenger's sleep.

[0033] In addition, a customized sleep environment can also be provided for each passenger in the vehicle.

[0034] The further scope of application of the present disclosure will become apparent from the following detailed description. Those skilled in the art can clearly understand various changes and modifications within the spirit and scope of the present disclosure, and thus it should be understood that the detailed description and specific embodiments (such as preferred embodiments) of the present disclosure are given only by way of example. Description of the Drawings

[0035] The drawings are used to further understand the present invention, are incorporated into this application and form a part of this application, which show embodiments of the present disclosure and are used together with the description to explain the principles of the present disclosure. In the drawings:

[0036] Figure 1 is a block diagram of a sleep care providing system according to an embodiment of the present disclosure;

[0037] Figure 2 is a diagram showing a wearable type of biosensor in a sleep care providing system according to an embodiment of the present disclosure;

[0038] Figure 3 shows how to use Figure 2 the biosensor to monitor the sleep state of a passenger;

[0039] Figure 4 is a diagram showing a method for providing sleep care according to an embodiment of the present disclosure;

[0040] Figure 5 FIG. is a diagram specifically showing a sleep mode and a wake-up mode in a method of providing sleep care according to an embodiment of the present disclosure;

[0041] Figure 6 FIG. is a diagram showing a method of caring for a passenger's sleep during vehicle travel in a method of providing sleep care according to an embodiment of the present disclosure;

[0042] Figure 7 FIG. is a diagram showing another embodiment of controlling a lighting device in a method of providing sleep care according to the present disclosure;

[0043] Figure 8 FIG. is a block diagram of a sleep care providing system according to an embodiment of the present disclosure;

[0044] Figure 9 FIG. is a diagram showing a method of providing sleep care according to an embodiment of the present disclosure;

[0045] Figure 10 FIG. is a diagram specifically showing a sleep mode and a wake-up mode in a method of providing sleep care according to an embodiment of the present disclosure;

[0046] Figure 11 FIG. is a diagram showing another embodiment of controlling a seat in a method of providing sleep care according to an embodiment of the present disclosure;

[0047] Figure 12 FIG. is a block diagram of a sleep care providing system according to an embodiment of the present disclosure;

[0048] Figure 13 FIG. is a diagram showing a method of providing sleep care according to an embodiment of the present disclosure; and

[0049] Figure 14 FIG. is a diagram specifically showing a sleep mode and a wake-up mode in a method of providing sleep care according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0050] Now, a detailed description will be given based on the exemplary embodiments disclosed in this document and with reference to the accompanying drawings. The same or equivalent components may have the same reference numerals, and their descriptions will not be repeated. The suffixes "module" and "unit" used in this document are interchangeably added or used for the convenience of writing this specification, and are not intended to imply different meanings or functions. When describing the embodiments disclosed in this specification, related well-known technologies may not be described in detail so as not to obscure the subject matter of the embodiments disclosed in this specification. In addition, it should be noted that the drawings are only for facilitating the understanding of the embodiments disclosed in this specification and should not be construed as limiting the technical spirit disclosed in this specification. Therefore, the present disclosure should be construed as extending to any changes, equivalents, and alternatives other than those specifically set forth in the drawings.

[0051] Although terms such as "first", "second", etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are generally only used to distinguish components from each other.

[0052] It should be understood that when referring to a component being "connected" to another component, the component may be directly connected to the other component, or there may also be an intermediate component. In contrast, it should be understood that when referring to a component being "directly connected" to another component, there is no intermediate component.

[0053] A singular expression may include a plural expression unless it indicates a meaning significantly different from the context.

[0054] Terms such as "including" or "having" used herein are intended to indicate the presence of features, numbers, steps, operations, components, assemblies, or combinations thereof used in the following description, and it should be understood that the possibility of the presence or addition of one or more different features, numbers, steps, operations, components, assemblies, or combinations thereof is not excluded.

[0055] Figure 1 is a block diagram of a sleep care providing system 100 according to an embodiment of the present disclosure, and Figure 2 is a diagram showing an earplug 1211 and a smartwatch 1212 as wearable-type biosensors 121 in a sleep care providing system 100 according to an embodiment of the present disclosure.

[0056] First, according to an embodiment of the present disclosure, the sleep care providing system 100 may include an input unit 110 and a sensor unit 120. Here, the input unit 110 may be used to receive sleep information from a passenger in a vehicle. For example, the passenger may input a travel time or a target sleep time through the input unit 110. In addition, the passenger may input a preferred light color for sleep and may input a desired light brightness.

[0057] The sensor unit 120 may be configured to monitor the sleep state of a passenger. Among them, the sensor unit 120 may include a wearable type of biosensor 121 that can be worn by the passenger. In addition, the biosensor 121 may also monitor one or more of the following vital signs of the passenger: electroencephalogram, heart rate, electrocardiogram, pulse.

[0058] For example, the biosensor 121 may include earplugs 1211, which are configured to measure electroencephalogram (EEG) signals, as shown in Figure 2 (a) of. The earplugs 1211 may be installed around the passenger's ears to measure EEG signals around the left or right temporal lobe of the passenger. The biosensor 121 may also include a smartwatch 1212, which is configured to measure photoplethysmogram (PPG) signals, as shown in Figure 2 (b) of. The smartwatch 1212 may be worn on the passenger's wrist and may measure vital signs (such as heart rate) from the passenger's blood flow.

[0059] In addition, the sleep care providing system 100 according to an embodiment of the present disclosure may include a camera 130. The camera 130 may be used to check the facial position of the passenger. In addition, when controlling the lighting device 151 to care for the passenger's sleep, the camera 130 may be used to determine the lighting level of the facial area of the passenger. In addition, the position and angle of the seat may be adjusted while checking the facial position of the passenger through the camera 130.

[0060] In addition, the sleep care providing system 100 according to an embodiment of the present disclosure may include a controller 140 and a device 150 including a lighting device 151, and the device 150 is installed in a vehicle. The controller 140 may be used to control the lighting device 151 installed in the vehicle based on the sleep information received through the input unit 110 or the sleep state monitored through the sensor unit 120. In addition, the controller 140 may be used to switch the lighting device 151 to the sleep mode to care for the passenger's sleep, and switch the lighting device 151 to the wake-up mode to induce the passenger to wake up.

[0061] Here, the lighting device 151 may include ambient light 1511, an interior light 1512, and an exterior light 1513. In addition, the device 150 installed in the vehicle may include a variable sunroof 152 and variable shading 153. The variable sunroof 152 and variable shading 153 may be used as light-shielding curtains to prevent external light from disturbing the passenger's sleep. The present disclosure is not limited thereto. In the sleep care providing system 100 according to an embodiment of the present disclosure, the device 150 installed in the vehicle may include a light-shielding curtain to prevent external light from disturbing the passenger's sleep.

[0062] How the controller 140 controls the lighting device 151, the variable sunroof 152, and the variable shading 153 to provide sleep care for the passengers will be described in detail later.

[0063] It should be noted that Figure 1 The block diagram of the sleep care providing system 100 shown in

[0064] is merely a block diagram of one embodiment of the present disclosure, and components in the block diagram may be integrated, added, or omitted according to the specifications of the actually implemented sleep care providing system 100.

[0065] Figure 3 is a diagram showing how to use Figure 2 the biosensor 121 to monitor the sleep state of the passenger.

[0066] As described above, the sleep care providing system 100 according to an embodiment of the present disclosure may include a wearable type biosensor 121 wearable by the passenger. The biosensor 121 may monitor one or more of the following vital signs of the passenger: EEG, heart rate, electrocardiogram, and pulse.

[0067] Specifically, the biosensor 121 may determine the characteristics of the vital signs based on one-dimensional convolutional neural network (1D CNN) technology, and classify the sleep state of the passenger based on the determined characteristics of the vital signs.

[0068] In the sleep care providing system 100 according to an embodiment of the present disclosure, the biosensor 121 may include earplugs 1211 configured to measure EEG signals and a smartwatch 1212 configured to measure PPG signals, as described above with reference to Figure 2 described.

[0069] In other words, as Figure 3 shown, the earplugs 1211 may acquire the EEG signals of the passenger, and the smartwatch 1212 may acquire the PPG signals of the passenger. Then, the deep learning model 200 may classify the sleep state of the passenger based on the acquired EEG signals and PPG signals as input data, and manage the sleep of the passenger based on the classification.

[0070] According to an embodiment of the present disclosure, a sleep care providing system 100 can calculate features 210 of an EEG signal and features 220 of a PPG signal by applying 1D CNN. In addition, comprehensive features 230 can be calculated by applying 1D CNN to the features 210 of the EEG signal and the features 220 of the PPG signal.

[0071] Features 240 can be extracted from the comprehensive features 230 through a fully connected layer, and the sleep state of a passenger can be classified based on the features 240 using Softmax. In this way, the sleep state of a passenger can be classified into a wake state 250, a REM sleep state 260, and non-REM (NREM) sleep states 270, 280, and 290 using Softmax.

[0072] Here, the NREM sleep states 270, 280, and 290 can be classified into different stages based on the sleep depth of the passenger. For example, the NREM sleep states 270, 280, and 290 can be classified into a state corresponding to a light sleep stage and a state corresponding to a deep sleep stage. The sleep of the passenger can be cared for by distinguishing the state of the passenger in the light sleep stage and the deep sleep stage.

[0073] Therefore, according to an embodiment of the present disclosure, the sleep care providing system 100 can use the EEG signal and PPG signal of a passenger as inputs, gradually classify the sleep state of the passenger through the above-described deep learning model 200 of 1D CNN, and care for the sleep of the passenger based on the classification. A method of managing the sleep of a passenger will be described in more detail below.

[0074] Figure 4 is a diagram showing a method of providing sleep care according to an embodiment of the present disclosure. Figure 5 is a diagram specifically showing a sleep mode and a wake mode in a method of providing sleep care according to an embodiment of the present disclosure. Figure 6 is a diagram showing a method of caring for the sleep of a passenger during vehicle travel in a method of providing sleep care according to an embodiment of the present disclosure. Figure 7 is a diagram showing another embodiment of controlling a lighting device in a method of providing sleep care according to the present disclosure.

[0075] Next, based on the foregoing description and with reference to Figures 1 to 3 a method of providing sleep care according to an embodiment of the present disclosure will be described.

[0076] With reference to Figure 4, the sleep information from the passenger can be received through the input unit 110 (S410). Here, the sleep information received through the input unit 110 may include one or more of travel time, target sleep time, preferred light color, and light brightness. This is intended to manage the passenger's sleep based on the sleep information input by the passenger.

[0077] The sleep state of the passenger can be monitored through the sensor unit 120 (S420). Here, the sensor unit 120 may include the wearable type of biosensor 121 that can be worn by the passenger, as described above. The biosensor 121 can monitor one or more of the following vital signs of the passenger: EEG, heart rate, electrocardiogram, and pulse.

[0078] For example, according to the travel time required to reach the destination, the passenger may want to take a short sleep lasting 30 minutes or less, or a long sleep lasting 1 hour or more.

[0079] In particular, if the passenger wakes up after entering deep sleep, due to the short sleep time, it may make the passenger more fatigued and the cognitive recovery will also slow down. Therefore, in this case, it is necessary to care for the passenger's sleep and prevent the passenger from entering deep sleep.

[0080] In addition, when the passenger takes a long sleep, it is necessary to care for the passenger's sleep to induce deep sleep. Moreover, as described above, if the passenger wakes up after entering deep sleep, the passenger may feel more fatigued. Therefore, it is necessary to care for the passenger's sleep so that the passenger can wake up from the light sleep state.

[0081] Therefore, the method for providing sleep care according to an embodiment of the present disclosure may include: controlling the lighting device 151 installed in the vehicle based on the sleep information received from the passenger and the monitored sleep state to provide an optimal sleep environment (S430). Controlling the lighting device 151 may include: switching the lighting device 151 to the sleep mode to care for the passenger's sleep (S440); and switching the lighting device 151 to the wake-up mode to induce the passenger to wake up (S450).

[0082] More specifically, referring to Figure 5 , after switching to the sleep mode (S510), the position of the passenger's face can be checked through the camera 130 (S520). In addition, when controlling the lighting device 151 to provide sleep care for the passenger, the lighting level of the passenger's facial area can be checked through the camera 130 (S530). In addition, the position of the passenger's face can be checked through the camera 130 while adjusting the position and angle of the seat (S530).

[0083] In addition, according to an embodiment of the present disclosure, a method of providing sleep care may include: adjusting the brightness of the ambient light 1511 (S540), adjusting the transparency of the variable skylight 152 (S550), or adjusting the transparency of the variable tinting 153 (S560) through the above-described controller 140. However, the present disclosure is not limited thereto. A method of providing sleep care according to an embodiment of the present disclosure may include: operating a light-shielding curtain that may be installed in a vehicle to prevent external light from disturbing the sleep of a passenger.

[0084] Then, when it is determined that the target sleep time or the destination is about to be reached (S570), the system may switch to the wake-up mode (S580).

[0085] In one embodiment, when a passenger wants to take a short sleep of 30 minutes or less, the ambient light 1511 and the interior light 1512 may first be operated in a preferred light color or red light (1900K) input by the passenger for up to five minutes, and the brightness may vary from 100 lux to 5 lux to induce the passenger to quickly enter the sleep state. Then, in order to prevent the passenger from falling into a deep sleep as described above, the ambient light 1511 and the interior light 1512 may be continuously operated with a brightness control of 10 lux or less to keep the passenger in a light sleep state. Then, after 30 minutes, the ambient light 1511 and the interior light 1512 may be operated with a brightness of 1000 lux or more and white light (4000K) to wake up the passenger.

[0086] In another embodiment, when a passenger wants to take a sleep of one hour or longer, the ambient light 1511 and the interior light 1512 may be operated in a preferred light color or red light (1900K) input by the passenger. In addition, the transparency of the variable skylight 152 and the variable tinting 153 may be controlled to gradually change from 100% to 0% to provide a light-shielding effect in the vehicle. In addition, the ambient light 1511 and the interior light 1512 may be controlled to operate at a brightness level of 5 lux or less to keep the passenger in a deep sleep state. In addition, the passenger may set the ambient light 1511 and the interior light 1512 to turn off after a certain period of time. This setting may be included in the sleep information received through the input unit 110 described above.

[0087] Here, if the passenger wakes up after falling into a deep sleep as described above, the passenger may feel more fatigued. Therefore, it is necessary to care for the passenger's sleep so that the passenger can wake up from the light sleep state. To this end, when it is determined that the target sleep time or the destination is about to be reached, the ambient light 1511 and the interior light 1512 may be controlled to gradually brighten for a period of time. Similarly, the transparency of the variable skylight 152 and the variable tinting 153 may be controlled to gradually change.

[0088] Thereafter, when the target sleep time is reached or the destination is reached, the ambient light 1511 and the interior lamp 1512 can gradually change their brightness from 0 lux to 300 lux within a predetermined period (e.g., 3 minutes), and then the brightness reaches 1000 lux or higher. In addition, the variable skylight 152 and the variable shading 153 can be operated to have 100% transparency. This can induce the passengers to wake up.

[0089] In addition, the method for providing sleep care according to an embodiment of the present disclosure can provide sleep care for passengers not only when the vehicle is stationary but also when the vehicle is moving. In this case, the vehicle needs to be controlled to ensure the safety of the passengers while caring for the sleep of the passengers as described above.

[0090] Therefore, referring to Figure 6 , the method for providing sleep care according to an embodiment of the present disclosure can include: changing the vehicle to the autonomous driving mode (S610) and changing lanes (S620). In addition, the vehicle can be made to cruise at a recommended speed in each section (S630). For example, on a three-lane road with a speed limit of 60 km / h, the vehicle can be made to change lanes to the outermost lane (i.e., the third lane) and travel at a cruising speed not exceeding the speed limit.

[0091] In addition, information indicating that the passengers are sleeping can be output to the outside of the vehicle (S640). In one embodiment, the external lamp 1513 can output information indicating that the passengers are sleeping. For example, an image or text indicating the sleep of the passengers can be output on the road surface around the vehicle through the external lamp 1513. The present disclosure is not limited thereto. An image or text indicating the sleep of the passengers can be output on the windows or external displays installed on the vehicle.

[0092] In addition, the method for providing sleep care according to the present disclosure can provide a customized sleep environment for each of multiple passengers in the vehicle. This can be achieved by receiving sleep information from each passenger in the vehicle through the above input unit 110 and controlling the lighting device 151 installed in the vehicle based on the sleep information.

[0093] Referring to Figure 7 , for example, when there are four passengers in the vehicle, the interior area 160 of the vehicle can be divided into four areas 160a, 160b, 160c, and 160d based on the seating positions of the passengers. And each passenger can input the above sleep information, such as the preferred light color or light brightness. Based on the input information, the color or brightness of the ambient light 1511 can be controlled, thereby realizing sleep care for multiple passengers.

[0094] The present disclosure is not limited thereto. The interior area 160 of the vehicle may be equipped with multiple sun visors or light shields. In addition, the vehicle may be equipped with a member for blocking external light that may shine on the faces of multiple passengers.

[0095] In some cases, there may be passengers who want to sleep and passengers who do not want to sleep. In such a case, the ambient light 1511 may be used only in the area where the passengers who want to sleep are located. Additionally, the external light may be blocked by changing the transparency of the variable sunroof 152 or the variable tint 153 only in the area where the passengers who want to sleep are located.

[0096] Figure 8 is a block diagram of a sleep care providing system 100 according to an embodiment of the present disclosure.

[0097] First, a sleep care providing system 100 according to an embodiment of the present disclosure may include an input unit 110 and a sensor unit 120. Here, the input unit 110 may be used to receive sleep information from the passengers of the vehicle. For example, a passenger may input a travel time or a target sleep time through the input unit 110. In addition, a passenger may input the position of a preferred seat 151 for sleep, and may input the volume and type of a desired sound.

[0098] The sensor unit 120 may be configured to monitor the sleep state of a passenger. Among them, the sensor unit 120 may include a wearable type of biosensor 121 that can be worn by a passenger. In addition, one or more of the following vital signs of a passenger may also be monitored through the biosensor 121: electroencephalogram, heart rate, electrocardiogram, and pulse.

[0099] For example, the biosensor 121 may include earplugs 1211 configured to measure EEG signals, as Figure 2 shown in (a) of. The earplugs 1211 may be installed around the ears of a passenger to measure EEG signals around the left or right temporal lobe of the passenger. The biosensor 121 may also include a smartwatch 1212 configured to measure a photoplethysmogram (PPG) signal, as Figure 2 shown in (b) of. The smartwatch 1212 may be worn on the wrist of a passenger and may measure vital signs (such as heart rate) from the blood flow of the passenger.

[0100] In addition, according to an embodiment of the present disclosure, the sleep care providing system 100 may include a camera 130. The camera 130 may be used to check the facial position of a passenger. In addition, the camera 130 may be used to determine the posture of a passenger. For example, the camera 130 may be used to track the joints of a passenger to determine the positions of the head, neck, waist, and legs of the passenger. Accordingly, the position and angle of the seat 151 may be adjusted according to the facial position and posture of the passenger determined by the camera 130.

[0101] In addition, a sleep care providing system 100 according to an embodiment of the present disclosure may include a controller 140 and a device 150 including a seat 151 and an audio device 152. The device 150 is installed in a vehicle. The controller 140 may control the seat 151 or the audio device 152 installed in the vehicle based on sleep information received through the input unit 110 or a sleep state monitored by the sensor unit 120. In addition, the controller 140 may switch the seat 151 or the audio device 152 to a sleep mode to care for the passenger's sleep, and switch the seat 151 or the audio device 152 to induce the passenger to wake up.

[0102] Here, the seat 151 may include a headrest 1511 and a pressure sensor 1512. In one embodiment, the pressure sensor 1512 may be used to change the shape of the headrest 1511 to fit the passenger's facial position. The present disclosure is not limited thereto. The sleep care providing system 100 according to an embodiment of the present disclosure may use a camera 130 and a pressure sensor 1512 to change the position and shape of the seat 151 to fit the passenger's posture.

[0103] The audio device 152 may induce specific brainwaves of a passenger by outputting sounds at an appropriate volume, or may be used to care for the passenger's sleep by playing sound sources output from a left speaker and a right speaker differently according to the frequency (Hz) of specific brainwaves. In addition, a microphone 153 may receive voice input from the passenger. For example, the sound of the passenger snoring during sleep may be input, and the seat 151 may be controlled based on the input sound.

[0104] Specific details regarding caring for the passenger's sleep by controlling the seat 151 or the audio device 152 through the controller 140 will be described later.

[0105] It should be noted that Figure 8 the block diagram of the sleep care providing system 100 shown is merely a block diagram of an embodiment of the present disclosure, and components in the block diagram may be integrated, added, or omitted according to the specifications of the actually implemented sleep care providing system 100.

[0106] That is, two or more components may be combined into a single component as needed, or a single component may be subdivided into two or more components. In addition, the functions performed by each block are intended to illustrate embodiments of the present disclosure, and their specific operations or devices are not intended to limit the scope of the present disclosure.

[0107] Figure 9 is a diagram showing a method of providing sleep care according to an embodiment of the present disclosure. Figure 10 is a diagram specifically showing a sleep mode and a wake-up mode in a method of providing sleep care according to an embodiment of the present disclosure.Figure 11 This is a diagram showing another embodiment of controlling a seat in the sleep care method according to the present disclosure.

[0108] Hereinafter, based on the above description and with reference to Figure 2 , Figure 3 and Figure 8 a method for providing sleep care according to an embodiment of the present disclosure will be described.

[0109] With reference to Figure 9 , sleep information from a passenger can be received through the input unit 110 (S410). Here, the sleep information received through the input unit 110 may include one or more of travel time, target sleep time, position of the preferred seat 151, volume, and sound type. This is intended to manage the passenger's sleep based on the sleep information input by the passenger.

[0110] The sleep state of the passenger can be monitored through the sensor unit 120 (S420). Here, the sensor unit 120 may include the wearable type of biosensor 121 that can be worn by the passenger, as described above. The biosensor 121 can monitor one or more of the following vital signs of the passenger: EEG, heart rate, electrocardiogram, and pulse.

[0111] For example, depending on the travel time required to reach the destination, the passenger may want to take a short sleep lasting 30 minutes or less, or a long sleep lasting 1 hour or more.

[0112] In particular, if the passenger wakes up after entering deep sleep, a short sleep may cause the passenger to feel more fatigued, resulting in slower cognitive recovery. Therefore, in this case, it is necessary to care for the passenger's sleep to prevent the passenger from entering deep sleep.

[0113] In addition, when the passenger takes a long sleep, it is necessary to care for the passenger's sleep to induce deep sleep. Furthermore, as described above, if the passenger wakes up after entering deep sleep, the passenger may feel more fatigued. Therefore, it is necessary to care for the passenger's sleep so that the passenger can wake up from the light sleep state.

[0114] Therefore, the method for providing sleep care according to an embodiment of the present disclosure can control the seat 151 or the audio device 152 installed in the vehicle based on the sleep information received from the passenger and the monitored sleep state to provide an optimal sleep environment (S430). Controlling the seat 151 or the audio device 152 may include: switching the seat 151 or the audio device 152 to the sleep mode to care for the passenger's sleep (S440); and switching the seat 151 or the audio device 152 to the wake-up mode to induce the passenger to wake up (S450).

[0115] More specifically, with reference toFigure 10 After switching to the sleep mode (S510), the posture of the passenger can be checked by the camera 130 (S520), and the position and angle of the seat 151 can be adjusted accordingly (S530).

[0116] In addition, the method for providing sleep care according to an embodiment of the present disclosure may include: changing the shape of the headrest 1511 (S540), adjusting the temperature of the seat 151 (S550), and adjusting the volume or type of the audio device 152 (S560) through the above-mentioned controller 140. Here, considering the posture of the passenger, the shape of the headrest 1511 can be changed according to the position of the passenger's face using the above-mentioned air pressure sensor 1512. The seat 151 can vibrate left and right to care for the passenger's sleep.

[0117] Then, when it is determined that the target sleep time or the destination is about to be reached (S570), the system can switch to the wake-up mode (S580).

[0118] In one embodiment, when the passenger wants to take a short sleep of 30 minutes or less, the volume can be adjusted to 40 to 50 dB for 5 minutes to induce the passenger to fall asleep quickly. Then, in order to prevent the passenger from falling into a deep sleep as described above, the audio device 152 can be continuously operated to output left and right sounds with a difference of 4 to 7 Hz (which corresponds to theta waves) to keep the passenger in a light sleep state. After 30 minutes, the volume can be adjusted to 50 dB or higher to wake up the passenger.

[0119] In another embodiment, when the passenger wants to take a long sleep of one hour or longer, a sound with the volume increased to about 40 dB can be output. Then the audio device 152 can be operated to continuously output left and right sounds with a difference of about 2 to 4 Hz (which corresponds to delta waves) to keep the passenger in a deep sleep state. In addition, the passenger can set the audio device 152 to turn off after a certain time. This setting can be included in the sleep information received through the input unit 110 as described above.

[0120] Here, if the passenger wakes up after falling into a deep sleep as described above, the passenger may feel more fatigued. Therefore, it is necessary to care for the passenger's sleep so that the passenger can wake up from a light sleep state. For this purpose, when it is determined that the target sleep time or the destination is about to be reached, the volume of the sound output from the audio device 152 can be controlled to gradually increase.

[0121] Thereafter, when the target sleep time is reached or the destination is reached, the audio device 152 can be operated to output a sound with a volume of 50 dB or more to wake up the passenger. In addition, the seat 151 can be controlled to change the position and angle of the seat 151 to induce the passenger to wake up.

[0122] In addition, a method for providing sleep care according to an embodiment of the present disclosure may include adjusting the temperature of the seat 151 to care for the passenger's sleep. Based on the sleep information about the passenger input through the input unit 110, the temperature of the seat 151 may be set to the temperature preferred by the passenger during sleep.

[0123] In addition, a method for providing sleep care according to an embodiment of the present disclosure can provide sleep care for passengers not only when the vehicle is stationary but also when the vehicle is moving. In this case, it is necessary to control the vehicle to ensure the safety of the passenger while caring for the passenger's sleep as described above.

[0124] Therefore, referring to Figure 6 , a method for providing sleep care according to an embodiment of the present disclosure may include: changing the vehicle to an autonomous driving mode (S610) and changing lanes (S620). In addition, the vehicle can be made to cruise at a recommended speed on each section (S630). For example, on a three-lane road with a speed limit of 60 km / h, the vehicle can be made to change lanes to the outermost lane (i.e., the third lane) and travel at a cruising speed not exceeding the speed limit.

[0125] In addition, information indicating that the passenger is sleeping can be output to the outside of the vehicle (S640). In one embodiment, an external light can output information indicating that the passenger is sleeping. For example, an image or text indicating the passenger's sleep can be output on the road surface around the vehicle through the external light. The present disclosure is not limited thereto. An image or text indicating the passenger's sleep can be output on a window or an external display installed on the vehicle.

[0126] In addition, referring to Figure 11 , a method for providing sleep care according to an embodiment of the present disclosure may include switching to a sleep mode (S710), and then checking the passenger's snoring or apnea through the microphone 153 (S720). The method may further include: adjusting the vibration of the seat 151 (S730); and adjusting the position and angle of the seat 151 (S740). Thus, when apnea is detected, the passenger can be prevented from snoring or waking up.

[0127] In addition, a method for providing sleep care according to the present disclosure can provide a customized sleep environment for each of multiple passengers in the vehicle. This can be achieved by receiving sleep information from each passenger in the vehicle through the above-mentioned input unit 110 and controlling the seat 151 or the audio device 152 installed in the vehicle based on the sleep information.

[0128] In other words, the plurality of seats 151 can be individually controlled based on the seat positions of a plurality of passengers. In addition, the audio device 152 can be controlled by dividing the interior area of the vehicle based on the seat positions of the plurality of passengers in the vehicle. In this case, the audio device 152 can use noise cancellation to prevent sleep disturbances caused by overlapping sounds among the plurality of passengers. The present disclosure is not limited thereto. As described above with reference to Figure 11 When snoring of some of the plurality of passengers is identified by the microphone 153, the seats 151 occupied by these passengers can be controlled so as not to disturb the sleep of other passengers.

[0129] Figure 12 is a block diagram of a sleep care providing system according to an embodiment of the present disclosure.

[0130] First, a sleep care providing system 100 according to an embodiment of the present disclosure may include an input unit 110 and a sensor unit 120. Here, the input unit 110 can be used to receive sleep information from the passengers of the vehicle. For example, a passenger can input a travel time or a target sleep time through the input unit 110. In addition, for sleep, a passenger can input a temperature or an air flow intensity preferred inside the vehicle, and input a humidity required inside the vehicle.

[0131] The sensor unit 120 can be configured to monitor the sleep state of a passenger. Among them, the sensor unit 120 may include a wearable type of biosensor 121 wearable by the passenger. In addition, one or more of the following vital signs of the passenger can be monitored through the biosensor 121: EEG, heart rate, electrocardiogram, pulse, heart site temperature, and skin temperature. Here, the skin temperature may include the temperature measured on the passenger's wrist.

[0132] For example, the biosensor 121 may include earplugs 1211 for measuring EEG signals, as shown in Figure 2 (a) of. The earplugs 1211 can be mounted around the passenger's ears to measure the EEG signals around the left temporal lobe or the right temporal lobe of the passenger. The earplugs 1211 can also use a temperature measuring member to measure the heart site temperature of the passenger, and when the earplugs 1211 are worn, the temperature measuring member can be located in the passenger's ear. The biosensor 121 may also include a smart watch 1212 configured to measure PPG signals, as shown in Figure 2 (b) of. The smart watch 1212 can be worn on the passenger's wrist, and can measure vital signs (such as heart rate) according to the blood flow of the passenger, and measure the temperature of the passenger's skin (wrist) as described above.

[0133] In addition, according to an embodiment of the present disclosure, the sleep care providing system 100 may include a camera 130. The camera 130 may be used to check the facial position of a passenger. In addition, the camera 130 may include an RGB camera 131 and a thermal imaging camera 132.

[0134] In one embodiment, the distance from the vehicle dashboard to the passenger's face may be calculated based on the image captured by the RGB camera 131. In addition, the RGB camera 131 and the thermal imaging camera 132 may be used to capture an image of the passenger's facial area to measure the thermal changes in the passenger's facial and skin (facial) temperature. Based on this measurement, the optimal airflow may be directed to the passenger's face to care for the passenger's sleep.

[0135] The present disclosure is not limited thereto. The sleep care providing system 100 according to an embodiment of the present disclosure may measure the sound of the airflow through a microphone in the headrest of the seat installed in the vehicle. Based on the measured sound of the airflow, the airflow intensity may be calculated to adjust the airflow intensity directed to the passenger's facial area, thereby providing sleep care for the passenger.

[0136] In addition, the sleep care providing system 100 according to an embodiment of the present disclosure may check the position of the passenger's face through the camera 130 to adjust the position and angle of the seat installed in the vehicle.

[0137] The sleep care providing system 100 according to an embodiment of the present disclosure may include a controller 140 and an air conditioning device 150. The controller 140 may be used to control the air conditioning device 150 installed in the vehicle based on the sleep information received through the input unit 110 or the sleep state monitored by the sensor unit 120. In addition, the controller 140 may be used to switch the air conditioning device 150 to the sleep mode to care for the passenger's sleep, and switch the air conditioning device 150 to the wake-up mode to wake up the passenger.

[0138] Details of caring for the passenger's sleep by controlling the air conditioning device 150 through the controller 140 will be described later.

[0139] It should be noted that Figure 12 the block diagram of the sleep care providing system 100 shown in

[0140] is merely a block diagram of an embodiment of the present disclosure, and components in the block diagram may be integrated, added, or omitted according to the specifications of the actually implemented sleep care providing system 100.

[0141] Figure 13 FIG. is a diagram showing a method of providing sleep care according to an embodiment of the present disclosure. Figure 14 FIG. is a diagram specifically showing a sleep mode and a wake-up mode in a method of providing sleep care according to an embodiment of the present disclosure.

[0142] Hereinafter, based on the above description and with reference to Figure 2 , Figure 3 and Figure 12 a method of providing sleep care according to an embodiment of the present disclosure will be described.

[0143] With reference to Figure 13 , sleep information from a passenger can be received through the input unit 110 (S410). Here, the sleep information received through the input unit 110 may include one or more of a travel time, a target sleep time, a preferred internal temperature, an internal humidity, and an air flow intensity. This is intended to manage the passenger's sleep based on the sleep information input by the passenger.

[0144] The sleep state of the passenger can be monitored through the sensor unit 120 (S420). Here, the sensor unit 120 may include the wearable type of biosensor 121 wearable by the passenger, as described above. The biosensor 121 may monitor one or more of the following vital signs of the passenger: EEG, heart rate, electrocardiogram, pulse, heart site temperature, and skin temperature.

[0145] For example, depending on the travel time required to reach the destination, the passenger may want to take a short sleep of 30 minutes or less, or a long sleep of 1 hour or more.

[0146] In particular, if the passenger wakes up after entering deep sleep, due to the short sleep time, the passenger may become more fatigued and the cognitive recovery will also slow down. Therefore, in this case, it is necessary to care for the passenger's sleep to prevent the passenger from entering deep sleep.

[0147] In addition, when the passenger takes a long sleep, it is necessary to care for the passenger's sleep to induce deep sleep. Furthermore, as described above, if the passenger wakes up after entering deep sleep, the passenger may feel more fatigued, so it is necessary to care for the passenger's sleep so that the passenger can wake up from a light sleep state.

[0148] Therefore, a method of providing sleep care according to an embodiment of the present disclosure may include: controlling the air conditioning device 150 installed in the vehicle based on the sleep information received from the passenger and the monitored sleep state to provide an optimal sleep environment (S430). Controlling the air conditioning device 150 may include: switching the air conditioning device 150 to a sleep mode to care for the passenger's sleep (S440); and switching the air conditioning device 150 to a wake-up mode to induce the passenger to wake up (S450).

[0149] More specifically, referring to Figure 5 , after switching to the sleep mode (S510), the position of the passenger's face can be checked by the camera 130 (S520). In addition, while the position of the passenger's face can be checked by the camera 130, the air flow direction from the air conditioning device 150 can be adjusted to be delivered to the passenger's face (S530). In other words, the angle of the air conditioning device 150 can be adjusted to allow the air flow to be delivered to the passenger's face.

[0150] In addition, the sleep care method according to an embodiment of the present disclosure may include checking the temperature inside the vehicle (S540), checking the humidity inside the vehicle (S550), or checking the carbon dioxide concentration inside the vehicle (S560). Based on the above checks, the air conditioning device 150 can be operated (S570) to care for the passenger's sleep.

[0151] In one embodiment, the air conditioner or heater of the air conditioning device 150 can be operated to maintain the temperature inside the vehicle at 24°C to 26°C. For example, when the temperature inside the vehicle is lower than 24°C, the heater can be operated, and when the temperature inside the vehicle is higher than 27°C, the air conditioner can be operated.

[0152] In addition, the air conditioner of the air conditioning device 150 can be operated to maintain the humidity inside the vehicle at 40% to 60%. In addition, the air conditioning device 150 can be operated so that the carbon dioxide concentration inside the vehicle is maintained at 900 ppm or lower, and outside air can be introduced into the vehicle. The present disclosure is not limited thereto. In the method for providing sleep care according to an embodiment of the present disclosure, the air conditioning device 150 can be operated so that the air flows toward the passenger's face at a speed of about 0.8 m / s.

[0153] In addition, the air conditioning device 150 can be controlled by continuously measuring the thermal changes in the passenger's face area by the RGB camera 131 and the thermal imaging camera 132 as described above to ensure that the passenger's face area is maintained at an appropriate temperature.

[0154] In one embodiment, when the temperature of the passenger's face area has not reached the appropriate temperature, the air conditioning device 150 can be controlled to adjust the air flow intensity and operate the air conditioner or heater to reach the appropriate temperature.

[0155] In addition, the air conditioning device 150 can be controlled by monitoring the temperature of the passenger's heart area by the earplug 1211 worn by the passenger and / or monitoring the skin (wrist) temperature of the passenger by the smart watch 1212 worn by the passenger to care for the passenger's sleep.

[0156] Then, when it is determined that the target sleep time or the destination is about to be reached (S570), the system can switch to the wake-up mode (S580).

[0157] In one embodiment, when a passenger wants to take a short sleep of 30 minutes or less, the air conditioner or heater can be strongly operated for five minutes first to quickly raise the temperature inside the vehicle to the passenger's preferred temperature, thereby inducing the passenger to fall asleep quickly. Then, in order to prevent the passenger from falling into a deep sleep as described above, the air conditioning device 150 can be operated and then the air conditioner or heater can be continuously operated to keep the passenger in a light sleep state. After 30 minutes, the air conditioning device 150 can be operated to provide warm air to the passenger's facial area to wake up the passenger.

[0158] In another embodiment, when a passenger wants to take a sleep of one hour or longer, the intensity of the air conditioner or heater can be gradually increased so that the temperature inside the vehicle reaches the passenger's preferred temperature. Then, the operation of the air conditioner or heater can be controlled to keep the passenger in a deep sleep state. In addition, the passenger can set the air conditioning device 150 to turn off after a certain period of time. This setting can be included in the sleep information received through the input unit 110 as described above.

[0159] Here, as described above, if a passenger wakes up after entering a deep sleep, the passenger may feel more fatigued. Therefore, it is necessary to care for the passenger's sleep so that the passenger can wake up from a light sleep state. To this end, when it is determined that the target sleep time or the destination is about to be reached, the air conditioning device 150 can be operated to gradually change the intensity of the air conditioner or heater.

[0160] Thereafter, when the target sleep time is reached or the destination is arrived at, the air conditioning device 150 can be operated to provide warm air to the passenger's facial area to wake up the passenger.

[0161] In addition, the method for providing sleep care according to an embodiment of the present disclosure can provide sleep care for a passenger not only when the vehicle is stationary but also when the vehicle is moving. In this case, it is necessary to control the vehicle to ensure the safety of the passenger while caring for the passenger's sleep as described above.

[0162] Therefore, referring to Figure 6 , the method for providing sleep care according to an embodiment of the present disclosure can include: changing the vehicle to the autonomous driving mode (S610) and changing lanes (S620). In addition, the vehicle can be made to cruise at a recommended speed on each section (S630). For example, on a three-lane road with a speed limit of 60 km / h, the vehicle can be made to change lanes to the outermost lane (i.e., the third lane) and travel at a cruising speed not exceeding the speed limit.

[0163] In addition, information indicating that a passenger is sleeping can be output to the outside of the vehicle (S640). In one embodiment, an external light can output information indicating that a passenger is sleeping. For example, an image or text indicating the passenger's sleep can be output on the road surface around the vehicle by the external light. The present disclosure is not limited thereto. An image or text indicating the passenger's sleep can be output on a window or an external display installed on the vehicle.

[0164] In addition, the method for providing sleep care according to the present disclosure can provide a customized sleep environment for each of multiple passengers in the vehicle. This can be achieved by the above input unit 110 receiving sleep information from each passenger in the vehicle and controlling the air conditioning device 150 installed in the vehicle based on the sleep information.

[0165] In other words, the internal area of the vehicle can be divided based on the seat positions of multiple passengers in the vehicle to control the air conditioning device 150. In addition, the air conditioning device 150 can be controlled to monitor changes in the temperature of each passenger through the camera 130 to care for the passengers' sleep. The present disclosure is not limited thereto. The air conditioning device 150 can be controlled to check the temperature, humidity, and carbon dioxide concentration inside the vehicle to care for the sleep of multiple passengers as described above.

[0166] In summary, the sleep care method and system according to the present disclosure can provide a variety of functions for caring for the sleep of passengers when the vehicle is moving or stationary. In addition, devices in the vehicle can be controlled based on the sleep information received through the input unit or the sleep state monitored by the sensor unit, thereby providing sleep care. In addition, a customized sleep environment can be provided for each of multiple passengers in the vehicle.

[0167] The above detailed description should be construed as illustrative in all respects and not restrictive. The scope of the present disclosure should be determined by a reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present disclosure are intended to be covered within the scope of the present disclosure.

Claims

1. A method for providing sleep care for a passenger in a vehicle, the method comprising: receiving, by a controller, sleep information from the passenger through an input unit operatively connected to the controller or monitoring the sleep state of the passenger through a sensor unit operatively connected to the controller; as well as controlling, by the controller, a lighting device operatively connected to the controller and installed in the vehicle based on the received sleep information or the monitored sleep state, Wherein, controlling the lighting device comprises: Switching the lighting device to a sleep mode to care for the sleep of the passenger, or The lighting device is switched to a wake-up mode to induce the passenger to wake up.

2. The method according to claim 1, wherein: The sensor unit includes: The passenger can wear a biometric sensor, The biosensor monitors one or more vital signs of the passenger including brain waves, heart rate, electrocardiogram or pulse.

3. The method according to claim 2, wherein: The biosensor is configured as: Determining the characteristics of the vital signs based on a one-dimensional convolutional neural network 1D CNN; and The sleeping state of the passenger is classified based on the determined characteristics of the vital signs.

4. The method according to claim 3, wherein: The classified sleep state includes one or more of a wakefulness state, a rapid eye movement (REM) sleep state, or a non-REM sleep state.

5. The method according to claim 1, wherein: The received sleep information includes one or more of travel time, target sleep time, preferred light color or light brightness, Wherein, controlling the lighting device further comprises: The lighting device installed in the vehicle is controlled based on sleep information received from each of a plurality of passengers in the vehicle.

6. The method according to claim 1, wherein: The lighting device includes an ambient light, Wherein, controlling the lighting device further comprises: Controlling one or more of a variable sunroof or a variable tint installed on the vehicle.

7. The method according to claim 6, wherein: Switching to the sleep mode and switching to the wake-up mode include: One or more of the brightness of the ambient light, the transparency of the variable skylight, or the transparency of the variable tinting is changed.

8. The method according to claim 1, further comprising: The controller changes the vehicle into an automatic driving mode based on the received sleep information or the monitored sleep state; as well as Information indicating the sleep of the passenger is outputted to the outside of the vehicle by the controller.

9. The method according to claim 1, further comprising: The controller controls one or more of a seat, an audio device or an air conditioning device installed in the vehicle based on the received sleep information or the monitored sleep state, Wherein, controlling one or more of the seat, the audio equipment or the air conditioning equipment comprises: Switching one or more of the seat, the audio equipment or the air conditioning equipment to the sleep mode to take care of the passenger's sleep, or One or more of the seat, the audio equipment, and the air conditioning equipment are switched to the wake-up mode to induce the passenger to wake up.

10. A system for providing sleep care for passengers in a vehicle, the system comprising: an input unit configured to receive sleep information from the passenger; a sensor unit configured to monitor the sleeping state of the passenger; as well as a controller operatively connected to the input unit and the sensor portion and configured to control a lighting device operatively connected to the controller and installed in the vehicle based on the sleep information received through the input unit or the sleep state monitored by the sensor portion, Wherein, the controller is configured as: Switching the lighting device to a sleep mode to care for the sleep of the passenger, or Those The lighting device is switched to a wake-up mode to induce the passenger to wake up.

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