Building

Abstract

To provide a technique capable of securing an appropriate feeling of openness while maintaining the heat insulation of a bathroom.SOLUTION: In a building 1 having a bathroom 10 and a first adjacent room 20 adjacent to the bathroom 10, the first adjacent room 20 includes a first wall 21 adjacent to an outdoor space 3 and a first opening 22 provided in the first wall 21, and the bathroom 10 and the first adjacent room 20 are arranged so as to satisfy a positional relationship in which the outdoor space 3 is visible from the inside of the bathroom through the first opening 22.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to buildings, and more particularly to a technique that enables a bathroom to have an appropriate sense of openness while maintaining its thermal insulation. [Background technology]

[0002] In buildings where people live or stay, spaces that offer a comfortable sense of openness tend to be well-received. In particular, if such a sense of openness can be felt in the bathroom, it is easy to realize the relaxing effect on the mind and body. As a conventional technology for achieving the desired effect by appropriately arranging various spaces in a building, including the bathroom, an independent house for the disabled (Patent Document 1) has been proposed, for example, which provides a room suitable for disabled people to train to become independent with the help of family members, etc., without taking up unnecessary space, and which can be constructed easily and inexpensively.

[0003] This technology relates to an independent house for the physically disabled, consisting of a bathroom / toilet / washroom unit, a living / dining unit, and a bedroom unit, with each unit having its own opening merged together and connected without creating any steps on the opening floor. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 7-293004 Summary of the Invention [Problem to be solved by the invention]

[0005] However, if the bathroom window is made larger than usual in order to enhance the sense of openness in the bathroom, there is a risk that the bathroom's insulation properties will be compromised. On the other hand, if the bathroom's insulation properties are to be maintained at a suitable level, the bathroom window cannot be made larger, making it difficult to enhance the sense of openness in the bathroom. On the other hand, there is technology that enhances the sense of openness in a bathroom by separating the bathroom from the adjacent space with a glass partition, but this only allows the interior space to be seen from inside the bathroom, and does not necessarily provide a suitable sense of openness in terms of lighting or scenery.

[0006] Therefore, the present invention was made in consideration of the above-mentioned problems, and its purpose is to provide a technology that makes it possible to ensure an appropriate sense of openness while maintaining the insulation properties of a bathroom. [Means for solving the problem]

[0007] According to the building of the present invention, the above problem is solved by a building having a bathroom and a first adjacent room adjacent to the bathroom, wherein the first adjacent room has a first wall adjacent to an outdoor space and a first opening provided in the first wall, and the bathroom and the first adjacent room are positioned so as to satisfy a positional relationship that allows the outdoor space to be seen from within the bathroom through the first opening.

[0008] In the building of the present invention configured as described above, it is possible to maintain the bathroom's insulation while ensuring a suitable sense of openness. In other words, by not making the bathroom window large, a large sense of openness (a sense of spaciousness) can be achieved while maintaining appropriate insulation from the outside air. In this case, the line of sight between the outdoor space and the bathroom passes through the window of the adjacent room and the bathroom partition wall, which provides better protection from views into the bathroom from outdoor spaces such as balconies and gardens than a bathroom window alone. Due to this effect, there is no need to install blinds around the bathroom to block views from outdoor spaces into the bathroom. Therefore, a suitable sense of openness can be achieved even in situations where a bathroom window cannot be installed due to various issues such as the structure of the building or bathroom or the surrounding environment.

[0009] Furthermore, it is preferable that the above-mentioned building has a second adjacent room adjacent to the first adjacent room on the opposite side of the bathroom, the second adjacent room having a second wall adjacent to the outdoor space and a second opening provided in the second wall, and the bathroom, the first adjacent room, and the second adjacent room are arranged so as to satisfy a positional relationship in which the outdoor space can be seen from within the bathroom through each of the first opening and the second opening. With this configuration, two rooms (the first and second adjacent rooms) are arranged adjacent to the bathroom, and the outside can be seen from inside the bathroom through the openings of each room. This allows the bathroom to have a more appropriate sense of openness while maintaining its thermal insulation.

[0010] Furthermore, in the above-mentioned building, it would be even more preferable if the bathroom, the first adjacent room, and the second adjacent room were arranged adjacent to each other in that order in the first direction on the same floor of the building, and if a transparent bathroom partition wall was arranged between the bathroom and the first adjacent room. With the above configuration, the bathroom, the first adjacent room (bedroom), and the second adjacent room (living room) are arranged in a row on the same floor, and the view from the bathroom is toward the first adjacent room through the transparent bathroom partition wall with a reasonable area, which creates a greater sense of openness. This ultimately makes it possible to ensure a more appropriate sense of openness while maintaining the bathroom's thermal insulation.

[0011] Furthermore, in the above-mentioned building, it is even more preferable if the first wall and the second wall are continuous in the first direction, an upright wall is arranged between the first adjacent room and the second adjacent room, and one side end of the upright wall is positioned away from the wall surface of the continuous first wall and second wall in a second direction toward the inside of the building. With the above configuration, the first and second adjacent rooms can be gently separated by upright walls, ensuring a sense of openness in the building's interior space. This means that when a person relaxing in the bathroom looks out at the outdoor space through the first and second adjacent rooms, they also feel a sense of openness in the indoor space that is within their field of vision. This ultimately allows for a more appropriate sense of openness to be achieved while maintaining the bathroom's thermal insulation.

[0012] Furthermore, in the above-described building, it is even more preferable if the second wall is offset from the wall surface of the first wall by a predetermined distance toward the outdoor space in terms of its position relative to the first wall. With the above configuration, the second adjacent room (living room) protrudes further toward the outdoor space than the first adjacent room (bedroom), and when a person in the bathroom looks out at the outdoor space through the first and second openings, the view from the outdoor space is appropriately blocked while the window area that occupies the view is increased, making it easier to enhance the sense of openness. As a result, it is possible to ensure a more appropriate sense of openness while maintaining the thermal insulation of the bathroom.

[0013] Furthermore, it would be even more preferable if the above-mentioned building further has a connecting wall that connects the ends of the first wall and the second wall at the joint between the first wall and the second wall, and a third opening provided in the connecting wall, and if the bathroom, the first adjacent room, and the second adjacent room are positioned so that the outdoor space can be seen from within the bathroom through each of the first opening, the third opening, and the second opening. With the above configuration, the opening at the connecting part between the first adjacent room (bedroom) and the second adjacent room (living room) also serves as an opening for viewing the outdoor space from the bathroom through the first and second adjacent rooms, which is expected to further enhance the sense of openness. As a result, it is possible to ensure a more appropriate sense of openness while maintaining the thermal insulation of the bathroom.

[0014] Furthermore, in the above-described building, it is more preferable if the first adjacent room is a bedroom, the second adjacent room is a living room, and the outdoor space is a balcony, veranda, or garden. This configuration allows the open feeling in the bathroom to be appropriately improved in accordance with the layout of rooms in a typical building, thereby ensuring a more appropriate open feeling while maintaining the thermal insulation of the bathroom.

[0015] Furthermore, in the above-mentioned building, it would be even more preferable if the upper end of the bathroom partition wall and the upper ends of the first opening and the second opening are at the same height. With the above-mentioned configuration, the tops of the openings of each room are aligned, ensuring visibility of the outdoor space. This allows bathroom users to view the outdoor space in a natural, relaxed position. This also creates a visual continuity within the space, further emphasizing the sense of spaciousness created by the openings. Ultimately, this allows for a more appropriate sense of openness while maintaining the bathroom's thermal insulation.

[0016] Furthermore, in the above-described building, it would be even more preferable if the illuminance of the first adjacent room is higher than the illuminance of the bathroom and lower than the illuminance of the outdoor space. With this configuration, the difference in illuminance between the rooms effectively ensures privacy in the bathroom, and ultimately, it is possible to ensure a more appropriate sense of openness while maintaining the bathroom's thermal insulation.

[0017] Furthermore, in the above-mentioned building, it would be even more preferable if an adjustment mechanism is provided that adjusts the illuminance of the first adjacent room relatively to the illuminance of the bathroom and the outdoor space, and if the adjustment mechanism adjusts the illuminance of the first adjacent room relatively to the illuminance of the bathroom and the outdoor space based on the measurement results of the illuminance of the first adjacent room, the bathroom, and the outdoor space. With this configuration, the difference in illuminance between rooms can be controlled according to the weather, lighting, and other factors, ensuring privacy in the bathroom. This in turn allows for a more appropriate sense of openness while maintaining the bathroom's thermal insulation. [Effects of the Invention]

[0018] According to the building of the present invention, it is possible to maintain the thermal insulation of the bathroom while ensuring an appropriate sense of openness. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a plan view showing an example of a floor configuration in a building according to an embodiment of the present invention. [Figure 2] 1 is a cross-sectional view showing the positional relationship between each room and an opening in a building according to this embodiment. [Figure 3] FIG. 10 is a diagram showing the view from a bathroom in the building of this embodiment. [Figure 4] FIG. 1 is a diagram illustrating an example of a floor configuration in a building according to an embodiment of the present invention. [Figure 5A] 1A to 1C are diagrams illustrating variations of floor configuration examples in a building according to an embodiment of the present invention. [Figure 5B] 1A to 1C are diagrams illustrating variations of floor configuration examples in a building according to an embodiment of the present invention. [Figure 6] 1 is a diagram illustrating an example of a system configuration including an illuminance control device according to an embodiment of the present invention. [Figure 7] FIG. 2 is a diagram illustrating an example of the configuration of an illuminance DB according to the present embodiment. [Figure 8] FIG. 10 is a flow chart showing an illuminance control procedure applied to a building according to the present embodiment. [Figure 9] FIG. 10 is a flow chart showing an illuminance control procedure applied to a building according to the present embodiment. [Figure 10] FIG. 10 is a flow chart showing an illuminance control procedure applied to a building according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] <<Building according to one embodiment of the present invention>> One embodiment of the present invention (hereinafter referred to as the present embodiment) will be described below with reference to the accompanying drawings. Note that in the drawings, each component is illustrated somewhat simplified and schematic to make the description easier to understand. Furthermore, the size (dimensions) of each component of the building shown in the drawings, the spacing between components, etc., are different from the actual ones.

[0021] In the following explanation, a typical floor layout of a house is used as a specific premise, and a technology for appropriately creating an open feeling in a bathroom in the house is described. However, the present invention can also be applied to buildings other than houses, such as accommodation facilities such as hotels, and various facilities with bathrooms (medical facilities, rest facilities such as hot springs, means of transportation such as ships and trains, etc.).

[0022] The floor plan of FIG. 1 shows the floor configuration of building 1 of this embodiment. The cross-sectional view of FIG. 2 shows the positional relationship between each room (bathroom and bedroom) and openings (windows) in building 1 of this embodiment. The view from bathroom 10 in building 1 of this embodiment is shown in FIG. 3. As shown in FIG. 1, building 1 of this embodiment has a configuration in which bathroom 10, bedroom 20, and living room 30 are adjacent to each other on the same floor (same floor) in the order indicated by arrow 4 (first direction). Wall surface 6 of building 1 is formed by bathroom wall 17, bedroom wall 21, and living room wall 31, which are the exterior walls of bathroom 10, bedroom 20, and living room 30, respectively. Outside wall surface 6, outdoor space 3 such as a deck or veranda is located.

[0023] As shown in FIG. 2, the bathroom 10 in this floor configuration is used by the user X of the building 1 to bathe, providing a sense of openness in mind and body. Therefore, if the user X can comfortably view the outdoor space 3 from, for example, the bathtub 11, the washing area 12, or the sink 13 while using the bathroom 10, the sense of openness will be enhanced. However, it is difficult to view the outdoor space 3 while opening the existing bathroom window 15 from the perspective of ensuring privacy. On the other hand, by separating the bathroom 10 from the adjacent bedroom 20 with a partially or fully transparent bathroom partition wall 14 (bathroom partition wall), the view from the bathroom to the indoor space 2 can be secured, enhancing the sense of openness. However, the view of the outdoor space 3 from the bathroom cannot be seen, limiting the sense of openness.

[0024] Therefore, in the building 1 of this embodiment, the bedroom window 22 and the living room window 32, which are openings in the bedroom 20 and the living room 30 adjacent to the bathroom 10, respectively, are configured to be located at the end of the line of sight Y from the bathroom 10 through the bathroom partition wall 14. In other words, when a user X of the bathroom 10 looks outside from the bathroom partition wall 14, the line of sight Y includes the bedroom window 22 and the living room window 32, and the user X can see the outdoor space 3 through them.

[0025] However, if the bedroom 20 and the living room 30 were separated by a normal wall, the view from the bathroom 10 would naturally be blocked by that wall, and only the view of the outdoor space 3 from the bedroom window 22 would be secured. For this reason, the building 1 of this embodiment employs a configuration in which the bedroom 20 and the living room 30 are gently separated by an upright wall 23 whose side end 24 is spaced a certain distance from the wall surface 6 in the direction toward the indoor space 2 indicated by the arrow 5 (second direction). By employing such a configuration, when a user X of the bathroom 10 looks outside through the bathroom partition wall 14, the bedroom 20, the outdoor space 3 extending outside the bedroom window 22, the living room 30 peeking through between the wall surface 6 and the side end 24 of the upright wall 23, and the outdoor space 3 extending outside the living room window 32 can all be seen.

[0026] From the perspective of ensuring visibility from the bathroom 10 as described above, it is preferable that the top end 142 of the bathroom partition wall 14, the top end 221 of the bedroom window 22, and the top end 321 of the living room window 32 are all aligned at the same height from the floor of the building 1, as shown in Figure 3. In other words, if these top ends are not aligned, it will be difficult for user X's line of sight to reach from the bathroom 10 to the living room 30, forcing user X, who wants to naturally view the outdoor space 3, to adopt unnatural movements and postures in the bathroom 10. On the other hand, if the top ends are aligned as described above, a visual continuity of the space is created, further emphasizing the sense of spaciousness created by the opening, which is preferable.

[0027] 3, when user X in bathtub 11 of bathroom 10 looks ahead while soaking in bathtub 11, he or she can see through opening 141 in bathroom partition wall 14 to adjacent bedroom 20, the space between side edge 24 of upright wall 23 and wall surface 6, and living room 30 beyond. Furthermore, by shifting his or her gaze slightly to the right, outdoor space 3 can be seen through bedroom window 22 and living room window 32. In other words, indoor space 2 and outdoor space 3 can be viewed together from bathroom 10 in a natural way.

[0028] As a variation of the above configuration, a configuration in which the living room 30 protrudes further toward the outdoor space 3 than the wall surface 6 shown in Figures 1 to 3 can also be adopted. Figure 4 shows an example of a floor configuration in such a case. In this case, the living wall 31 of the living room 30 protrudes from the wall surface 6 of the bedroom wall 21 at a position offset by a predetermined distance toward the outdoor space 3 in relation to the bedroom wall 21. In such a configuration, at the joint between the bedroom wall 21 and the living wall 31, an end 211 of the bedroom wall 21 and an end 311 of the living wall 31 are connected by a connecting wall 7. In addition, a connecting wall window 8 is provided in the connecting wall 7.

[0029] With this configuration, the line of sight Y of user X in the bathroom 10 can reach the outdoor space 3 from within the bathroom 10 through the bedroom window 22, the connecting wall window 8, and the living room window 32, respectively, creating a more open impression of the bedroom 20, the living room 30, and the outdoor space 3. In addition to the example shown in FIG. 4, variations of FIGS. 5A and 5B can also be used. In FIG. 5A, the bathroom 10 protrudes a predetermined distance from the wall 6 of the bedroom 20 toward the outdoor space 3. In this case, a connecting wall 16 connects the end 171 of the bathroom wall 17 and the end 211 of the bedroom wall 21. User X in the bathroom 10 can reach the outdoor space 3 through the bathroom partition wall 14 with their line of sight Y, which passes through the bedroom window 22, the connecting wall window 8, and the living room window 32. In FIG. 5B, the bathroom 10 is positioned a certain distance away from the wall 6 toward the indoor space 2. In this configuration, the line of sight Y of a user X in the bathroom 10 passes through the bathroom partition wall 14, the bedroom 20, the living room 30, and the living room window 32, and reaches the outdoor space 3.

[0030] By arranging the bathroom 10, bedroom 20, and living room 30 in the above-described configuration and guiding the line of sight Y of the user X in the bathroom 10, it is possible to enjoy a sense of spaciousness, such as a view of the outdoor space 3, while remaining in the bathroom 10. However, it is impossible to completely eliminate the possibility that the line of sight of others from the outdoor space 3 may reach the bathroom partition wall 14 and the bathroom 10 via the living room window 32 and the bedroom window 22. Therefore, a configuration that appropriately blocks the line of sight of others in the outdoor space 3 while appropriately maintaining the sense of spaciousness will be described. Here, as shown in Figures 1, 2, and 4, the bathroom 10, bedroom 20, living room 30, and outdoor space 3 are each equipped with a light 40, an illuminance sensor 41, and a control unit 42. Furthermore, an illuminance control device 50 that controls the illuminance of the light 40 is installed somewhere in the building 1 or in an external facility via an appropriate network.

[0031] In this specification, the term "device" includes both a single device that performs a predetermined function on its own and a combination of multiple devices that are separate from each other but work together to perform a predetermined function.

[0032] 6 shows an example of a system configuration including an illuminance control device 50 according to this embodiment. The illuminance control device 50 according to this embodiment is communicatively connected to the lighting 40, illuminance sensors 41, and control unit 42 provided in each room (bathroom 10, bedroom 20, living room 30, and outdoor space 3) in the building 1 via an appropriate network N such as indoor wiring, the Internet, a LAN (Local Area Network), a WAN (Wide Area Network), or a mobile phone network.

[0033] However, this system configuration is merely one example, and it is also possible to adopt a configuration in which at least one of the lighting 40, the illuminance sensor 41, and the control unit 42 implements part of the functions of the illuminance control device 50 and is integrated with the illuminance control device 50, or a configuration in which the configuration and functions of the illuminance control device 50 are shared among multiple devices present on the network N and they work together to execute the illuminance control method of this embodiment.

[0034] The control unit 42 is equipped with a communication means that can access the network N and can communicate with the illuminance control device 50. Such communication means is assumed to be a chipset that executes a series of processes such as starting communication, sending and receiving data, and ending communication in accordance with the protocol of the network N, or a mobile phone equipped with the chipset.

[0035] <Hardware configuration of illuminance control device> Next, the configuration of the illuminance control device 50 will be described. In this embodiment, the illuminance control device 50 may be configured with a single computer as shown in the figure, or may be configured with multiple computers distributed in parallel. Alternatively, the illuminance control device 50 may be configured with a computer for an ASP (Application Service Provider), SaaS (Software as a Service), PaaS (Platform as a Service), or IaaS (Infrastructure as a Service).

[0036] Here, it is assumed that the illuminance control device 50 in this embodiment is configured as a single computer, and that the illuminance control device 50 is configured such that an auxiliary memory device 51, a main memory device 52, a CPU 53, and a communication device 54 are connected by a bus.

[0037] In the above configuration, the auxiliary storage device 51 is implemented by a non-volatile storage device or storage medium, such as an HDD (Hard Disk Drive), SSD (Solid State Drive), flash memory, FD (Flexible Disc), MO disk (Magneto-Optical disc), CD (Compact Disc), DVD (Digital Versatile Disc), SD card (Secure Digital card), or USB memory (Universal Serial Bus memory).

[0038] Furthermore, the auxiliary storage device 51 may be configured to be built into the housing of the illuminance control device 50, or may be configured to be externally connected to the illuminance control device 50. Furthermore, the auxiliary storage device 51 may be configured by another computer or the like that is communicably connected to the illuminance control device 50. Note that a distributed ledger technology such as a blockchain may be used as a technology for recording various data in order to avoid unauthorized data tampering, etc.

[0039] The auxiliary storage device 51 in this embodiment stores a program 511 and an illuminance DB 512, which will be described later.

[0040] The main storage device 52 may be configured with volatile semiconductor memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory). The main storage device 52 in this embodiment stores a program 511 including an OS (Operating System) read from the auxiliary storage device 51.

[0041] Of these, the OS controls the computer itself and implements basic functions, and under its control, the CPU 53 calls and executes each part of the program 511, thereby implementing functions such as illuminance control.

[0042] In addition, the CPU 53 is a type of computing device, and may be configured with a CPU as well as an MPU (Micro-Processing Unit), an MCU (Micro Controller Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), a TPU (Tensor Processing Unit), or an ASIC (Application Specific Integrated Circuit).

[0043] The communication device 54 is assumed to be a communication chipset compatible with, for example, 3G to 5G or later generation mobile communication protocols or the LTE (Long Term Evolution) protocol, but may be implemented in other devices depending on the type of network N. For example, if the network N is configured as a wireless LAN, the communication device 105 will be implemented as a network interface card compatible with the wireless LAN protocol based on Wi-fi (registered trademark).

[0044] <About the illuminance database> Next, the illuminance DB 512 held by the illuminance control device 50 in the building 1 of this embodiment will be described with reference to Fig. 7. The illuminance DB 512 in this embodiment is a database that stores illuminance measurement values ​​obtained by the illuminance sensors 41 via control units 42 installed at various locations in the building 1.

[0045] The data structure is a collection of records containing values ​​such as identification information that uniquely identifies building 1, identification information that uniquely identifies which floor in building 1, the space on that floor (bathroom, bedroom, living room, outdoors (deck)), identification information for the illuminance sensor installed in that space, and the illuminance observed by the illuminance sensor.

[0046] In the example of Figure 7, information on the illuminance observed by the illuminance sensors 41 (S11 to S14; see Figure 7) in each space, such as the "bathroom," "bedroom," "living room," and "outdoors (deck)" on floor "1F" of building "A," is stored.

[0047] <About illumination control> Next, an example of a flow associated with illuminance control in the building 1 of this embodiment will be described with reference to Figures 8 to 10. First, in the flow shown in Figure 8, the illuminance control device 50 acquires the illuminance of each room, i.e., the bathroom 10, bedroom 20, living room 30, and outdoor space 3, from the corresponding control unit 42 and stores it in the illuminance DB 512 (S10). In the following description, the illuminance of the bathroom 10 will be referred to as illuminance L1, the illuminances of the bedroom 20 and living room 30 will be collectively referred to as living room illuminance L2, and the illuminance of the outdoor space 3 will be referred to as illuminance L3.

[0048] Next, the illuminance control device 50 outputs an instruction to a predetermined drive unit to open the curtains in each room, or outputs instruction information to open the curtains to a terminal of a user or manager of the building 1 (S11). With the curtains open, the illuminance control device 50 acquires the illuminance of each room from the control unit 42 of that room (S12).

[0049] Furthermore, based on the illuminance information obtained in S12, the illuminance control device 50 determines whether the relationship bathroom illuminance L1≦living room illuminance L2<outdoor illuminance L3 holds (S13). If this determination shows that this relationship holds (S13: Yes), the illuminance control device 50 ends this flow. On the other hand, if the determination shows that this relationship does not hold (S13: No), the illuminance control device 50 determines whether the output of the lighting 40 in the outdoor space 3 is at its maximum value (S14). This determination is made by querying the controller of the lighting 40 about the output value via the network N (and so on).

[0050] If the result of the above determination is that the output of the lighting 40 in the outdoor space 3 is not at its maximum value (S14: No), the illuminance control device 50 increases the output of the lighting 40 in the outdoor space 3 by a certain amount (S15). This control is performed by issuing an instruction for illuminance control to the controller of the lighting 40 via the network N (same below).

[0051] The illuminance control device 50 also acquires the illuminance of each room from the control unit 42 (S16), and determines, based on the illuminance information acquired in S16, whether the relationship bathroom illuminance L1≦living room illuminance L2<outdoor illuminance L3, or the relationship bathroom illuminance L1<living room illuminance L2≦outdoor illuminance L3 holds (S17). If the result of this determination is that the relationship does not hold (S17: No), the illuminance control device 50 returns the process to S14. On the other hand, if the result of the above determination is that the relationship holds (S17: Yes), the illuminance control device 50 ends this flow.

[0052] On the other hand, if the result of the determination in S14 above is that the output of the lighting 40 in the outdoor space 3 is the maximum value (S14: Yes), the illuminance control device 50 determines whether the output of the lighting 40 in the bathroom 10 is 0 (S18). If the result of this determination is that the output of the lighting 40 in the bathroom 10 is 0 (S18: Yes), the illuminance control device 50 transitions the process to step S22 in Fig. 9. On the other hand, if the result of this determination is that the output of the lighting 40 in the bathroom 10 is not 0 (S18: No), the illuminance control device 50 reduces the output of the lighting 40 in the bathroom 10 by a certain amount (S19).

[0053] After the output is reduced in S19, the illuminance control device 50 again acquires the illuminance of each room from the control unit 42 (S20), and determines, based on the illuminance information acquired in S20, whether the relationship bathroom illuminance L1≦living room illuminance L2<outdoor illuminance L3 or the relationship bathroom illuminance L1<living room illuminance L2≦outdoor illuminance L3 holds (S21). If the result of this determination is that the relationship does not hold (S21: No), the illuminance control device 50 returns the process to S18. On the other hand, if the result of the above determination is that the relationship holds (S21: Yes), the illuminance control device 50 transitions the process to step S32 in FIG. 10.

[0054] As a result of the determination in step S18, the illuminance control device 50 proceeds to step S22 and determines whether the output of the living room lighting 40 is at its maximum value (S22). If the result of this determination is that the output of the living room lighting 40 is not at its maximum value (S22: No), the illuminance control device 50 increases the output of the living room lighting 40 by a certain amount (S23). After this increase, the illuminance control device 50 again acquires the illuminance of each room from the control unit 42 (S24), and determines, based on the illuminance information obtained in S24, whether the relationship is bathroom illuminance L1≦living room illuminance L2<outdoor illuminance L3, or whether the relationship is bathroom illuminance L1<living room illuminance L2≦outdoor illuminance L3 (S25).

[0055] If the result of this determination is that the relationship does not exist (S25: No), the illuminance control device 50 returns the process to S22. On the other hand, if the result of the above determination is that the relationship exists (S25: Yes), the illuminance control device 50 transitions the process to step S32 in Fig. 10. On the other hand, if the result of the determination in step S22 is that the output of the lighting 40 in the room is at its maximum value (S22: Yes), the illuminance control device 50 returns the output of the lighting 40 in the room to the value at the time of S10, i.e., the value at the time the initial output value was stored (S26).

[0056] The illuminance control device 50 also determines whether the output of the lighting 40 in the living room is 0 (S27). If the result of this determination is that the output of the lighting 40 in the living room is 0 (S27: Yes), the illuminance control device 50 returns the output of all lighting 40 controlled in the building 1 to the time of S10, executes an operation to close the curtains (S31), and ends this flow. The operation to close the curtains is executed, for example, by outputting an instruction to a predetermined drive unit to close the curtains in each room, or by outputting instruction information to close the curtains to a terminal of a user or manager of the building 1.

[0057] On the other hand, if the output of the lighting 40 in the living room is not zero (S27: No), the illuminance control device 50 reduces the output of the lighting 40 in the living room, i.e., the bedroom 20 and the living room 30, to a certain degree (S28). After reducing the output in S28, the illuminance control device 50 again acquires the illuminance of each room from the control unit 42 (S29). Based on the illuminance information acquired in S29, the illuminance control device 50 determines whether the relationship bathroom illuminance L1≦living room illuminance L2<outdoor illuminance L3 or the relationship bathroom illuminance L1<living room illuminance L2≦outdoor illuminance L3 holds (S30). If the relationship does not hold (S30: No), the illuminance control device 50 returns the process to S27. On the other hand, if the relationship holds (S30: Yes), the illuminance control device 50 transitions the process to step S32 of FIG. 10.

[0058] After transitioning to step S32, the illuminance control device 50 reduces the output of the lighting 40 in the outdoor space 3 by a certain amount (S32). After reducing the output in S32, the illuminance control device 50 again acquires the illuminance of each room from the control unit 42 (S33), and determines, based on the illuminance information acquired in S33, whether the relationship bathroom illuminance L1≦living room illuminance L2<outdoor illuminance L3 or the relationship bathroom illuminance L1<living room illuminance L2≦outdoor illuminance L3 holds (S34). If the result of this determination is that the relationship does not hold (S34: No), the illuminance control device 50 increases the output of the lighting 40 in the outdoor space 3 by a certain amount (S35), and ends this flow.

[0059] On the other hand, if the result of the above determination is that the relationship is met (S34: Yes), the illuminance control device 50 determines whether the output of the lighting 40 in the outdoor space 3 is not 0 (S36). If the result of this determination is that the output of the lighting 40 in the outdoor space 3 is not 0 (S36: Yes), the illuminance control device 50 returns the process to S32. On the other hand, if the result of the above determination is that the output of the lighting 40 in the outdoor space 3 is 0 (S36: No), the illuminance control device 50 sets the output of the lighting 40 in the outdoor space 3 to 0 (S37) and ends this flow. By executing each of the above flows, the illuminance control device 50 maintains the relationship between the illuminance of the bathroom 10, bedroom 20, living room 30, and outdoor space 3 such that bathroom illuminance L1≦living room illuminance L2<outdoor illuminance L3, or bathroom illuminance L1<living room illuminance L2≦outdoor illuminance L3, thereby ensuring an environment in which it is difficult for outsiders to see the inside of the bathroom 10 from the outdoor space 3 via the living room 30 or bedroom 20.

[0060] <<Other embodiments>> While one embodiment of the building of the present invention has been described above, the above embodiment is merely an example for facilitating understanding of the present invention and does not limit the present invention. In other words, the present invention can be modified and improved without departing from the spirit of the present invention. Furthermore, it goes without saying that the present invention also includes equivalents thereof. [Explanation of symbols]

[0061] 1. Building 2. Indoor space 3. Outdoor space 4 1st direction 5 Second direction 6 Wall 7 Connecting wall 8 Connecting wall window (third opening) 10 Bathroom 11 Bathtub 12 Washing area 13 Washbasin 14 Bathroom partition wall (bathroom partition wall) 141 Partition wall opening 142 Top 15 Bathroom window 16 Connecting wall 17 Bathroom wall 20 Bedroom (1st adjacent room) 21 Bedroom wall (1st wall) 211 End 22 Bedroom window (first opening) 221 Upper end 23 Upright wall 24 Side edge 30 Living room (second adjacent room) 31 Living room wall (second wall) 311 End 32 Living room window (second opening) 321 Upper end 40 Lighting 41 Illuminance sensor 42 Control unit (adjustment mechanism) 50 Information processing equipment 51 Auxiliary storage device 511 Program 512 Illuminance DB 52 Main memory 53 CPU 54 Communication equipment

Claims

1. A building having a bathroom and a first adjacent room adjacent to the bathroom, the first adjacent room includes a first wall adjacent to the outdoor space and a first opening provided in the first wall; A building in which the bathroom and the first adjacent room are positioned so that the outdoor space is visible from within the bathroom through the first opening.

2. a second adjacent room adjacent to the first adjacent room on the opposite side to the bathroom; the second adjacent room includes a second wall adjacent to the outdoor space and a second opening provided in the second wall; The building described in claim 1, wherein the bathroom, the first adjacent room, and the second adjacent room are arranged so as to satisfy a positional relationship in which the outdoor space can be seen from within the bathroom through each of the first opening and the second opening.

3. the bathroom, the first adjacent room, and the second adjacent room are arranged adjacent to each other in that order in a first direction on the same floor of the building; 3. The building of claim 2, wherein a transparent bathroom partition wall is disposed between the bathroom and the first adjacent room.

4. the first wall and the second wall are continuous in the first direction, an upright wall is disposed between the first adjacent chamber and the second adjacent chamber; The building described in claim 3, wherein one side end of the upright wall is positioned so as to be spaced apart from the wall surface of the continuous first wall and second wall in a second direction toward the inside of the building.

5. The building according to claim 2 , wherein the second wall is offset from a wall surface of the first wall by a predetermined distance toward the outdoor space in terms of its positional relationship with the first wall.

6. a connecting wall that connects end portions of the first wall and the second wall to each other at a joint between the first wall and the second wall; a third opening provided in the connecting wall, The building described in claim 5, wherein the bathroom, the first adjacent room, and the second adjacent room are arranged so as to satisfy a positional relationship in which the outdoor space can be seen from within the bathroom through each of the first opening, the third opening, and the second opening.

7. the first adjacent room is a bedroom; the second adjacent room is a living room, The building according to claim 2, wherein the outdoor space is a balcony, a veranda or a garden.

8. The building of claim 3, wherein the upper end of the bathroom partition wall is at the same height as the upper ends of the first opening and the second opening.

9. The building of claim 1 , wherein the illuminance of the first adjacent room is higher than the illuminance of the bathroom and lower than the illuminance of the outdoor space.

10. an adjustment mechanism is provided that adjusts the illuminance of the first adjacent room relative to the illuminance of each of the bathroom and the outdoor space; The building described in claim 9, wherein the adjustment mechanism adjusts the illuminance of the first adjacent room relative to the illuminance of the bathroom and the outdoor space based on measurement results of the illuminance of each of the first adjacent room, the bathroom, and the outdoor space.

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