JP7446564B2 - cabinet - Google Patents

Description

Aspects of the present invention generally relate to cabinets.

Conventionally, a technology has been proposed that uses a human body detection sensor installed in the toilet equipment in the toilet to automatically turn on and off the lighting equipment installed in the toilet, thereby creating a lighting effect in the toilet (patented). Reference 1).

The above lighting system is realized by using a dedicated toilet device having a human body detection sensor. Therefore, for example, in order to introduce a lighting system such as the one described above, it is necessary to use a dedicated toilet device, which poses a problem of limiting the choices of consumers.

Therefore, a technique has been proposed in which a human body detection sensor is installed on the front plate of a toilet cabinet provided at the rear of the toilet device to detect a human body entering the toilet room (Patent Document 2).

Japanese Patent Application Publication No. 2017-169901 JP 2017-000572 Publication

However, with such conventional technology, when a radio wave sensor is used as a human body detection sensor, the radio waves emitted from the inside of the cabinet body pass through not only the cabinet body but also the walls of the toilet room, causing damage inside the toilet room. In some cases, not only human bodies but also human bodies outside the toilet are detected. If a human body is detected outside the toilet, lighting equipment will automatically turn on when the toilet is not in use, which can cause problems such as increased power consumption.

The present invention was made based on the recognition of this problem, and an object of the present invention is to provide a cabinet that can suppress the detection of a human body outside the toilet while making it possible to detect a human body inside the toilet.

A first invention is a cabinet disposed on the side of a toilet bowl inside a toilet room, the cabinet main body having a storage section capable of storing articles therein, and a cabinet body provided inside the storage section that receives radio waves. a radio wave sensor that detects a human body in the toilet room, and the radio wave sensor is configured such that a first reflectance of the radio wave when it is incident on the cabinet main body is equal to the first reflectance of the radio wave when it is incident on the wall of the toilet room. The cabinet is characterized in that it is provided so that the second reflectance of radio waves is smaller than the second reflectance of radio waves.

According to this cabinet, the radio wave sensor is installed so that the first reflectance of the radio waves when they enter the cabinet body is smaller than the second reflectance of the radio waves when they enter the wall of the toilet room. It is possible to make it easier for radio waves to pass through when they enter the cabinet body, and to make it difficult for radio waves to pass through when they enter the wall of the toilet room. This makes it possible to detect a human body inside the toilet while suppressing the detection of a human body outside the toilet.

A second invention is based on the first invention, wherein the first reflectance is adjustable by a first incident angle of the radio wave with respect to the cabinet main body, and the second reflectance is adjustable with respect to the wall of the toilet room. The cabinet is characterized in that it is adjustable by the second incident angle of the radio waves.

According to this cabinet, the first reflectance and the second reflectance can be easily adjusted by adjusting the first incident angle of the radio waves to the cabinet body and the second incident angle of the radio waves to the wall of the toilet room. . This makes it easier to improve the accuracy of detecting a human body inside the toilet and to suppress the detection of a human body outside the toilet.

A third aspect of the invention is based on the first or second aspect, in which the radio wave sensor connects the toilet seat and the toilet located in front of the toilet bowl in the maximum directivity direction of the radio waves radiated from the radio wave sensor when viewed from above. The cabinet is characterized in that it is provided so that the wall of the chamber exists.

According to this cabinet, a user sitting on the toilet seat can be detected by providing the radio wave sensor so that the toilet seat is located in the maximum direction of radio waves emitted from the radio wave sensor. In addition, by installing a radio wave sensor so that the wall of the toilet room located in front of the toilet bowl is located in the direction of maximum direction of the radio waves emitted from the radio wave sensor, it is possible to prevent the user from being outside the wall of the toilet room located in front of the toilet bowl. Detection of human bodies can be suppressed.

A fourth invention is the cabinet according to any one of the first to third inventions, wherein the first reflectance and the second reflectance are reflectances of p-waves of the radio waves. .

According to this cabinet, the selection ratio between the first reflectance and the second reflectance can be increased by setting the first reflectance and the second reflectance to reflectance of p-wave radio waves. This makes it easier to improve the accuracy of detecting a human body inside the toilet and to suppress the detection of a human body outside the toilet.

A fifth invention is based on any one of the first to fourth inventions, wherein the storage section has a first part that is accessible to the user and a second part that is not accessible to the user; The cabinet is characterized in that the radio wave sensor is provided inside the second portion.

According to this cabinet, by providing the radio wave sensor inside the second portion that cannot be accessed by the user, it is possible to prevent the user from accidentally changing the mounting angle of the radio wave sensor. As a result, it is possible to suppress deterioration in the accuracy of detecting a human body in the toilet due to a change in the mounting angle of the radio wave sensor.

According to an aspect of the present invention, a cabinet is provided that can suppress the detection of a human body outside the toilet while making it possible to detect a human body inside the toilet.

FIG. 1 is a perspective view schematically showing a toilet system including a cabinet according to an embodiment. FIG. 1 is a perspective view schematically showing a cabinet according to an embodiment. FIG. 2 is a cross-sectional view schematically showing a part of the cabinet according to the embodiment. FIG. 2 is a block diagram schematically showing a part of the cabinet according to the embodiment. FIG. 2 is an explanatory diagram showing s-waves and p-waves of radio waves. It is a graph showing an example of a change in reflectance with respect to the incident angle of s-wave and p-wave. FIG. 1 is a plan view schematically showing a toilet system including a cabinet according to an embodiment. It is a top view which shows typically the modification of the toilet system provided with the cabinet based on embodiment. It is a top view which shows typically the modification of the toilet system provided with the cabinet based on embodiment. It is a top view which shows typically the modification of the toilet system provided with the cabinet based on embodiment. It is a top view which shows typically the modification of the toilet system provided with the cabinet based on embodiment.

Embodiments of the present invention will be described below with reference to the drawings. Note that in each drawing, similar components are denoted by the same reference numerals, and detailed explanations are omitted as appropriate.
FIG. 1 is a perspective view schematically showing a toilet system including a cabinet according to an embodiment.
As shown in FIG. 1, the toilet system 500 includes a cabinet 100 and a toilet device 200. The cabinet 100 and the toilet device 200 are provided inside the toilet room TR.

The toilet room TR has a front wall FW, a rear wall BW, a right wall RW, a left wall LW, and a floor FS. The toilet device 200 is attached to the floor surface FS, for example. The toilet device 200 may be attached to the rear wall BW. For example, the toilet device 200 may be installed at a position away from the floor surface FS.

The toilet device 200 includes, for example, a toilet bowl 210, a toilet seat 220, and a toilet lid 230. A toilet seat 220 is provided above the toilet bowl 210. The toilet lid 230 is provided on the toilet bowl 210 so as to cover the toilet seat 220. The toilet seat 220 and the toilet lid 230 are pivotably supported relative to the toilet bowl 210. FIG. 1 shows a state in which the toilet seat 220 is lowered and the toilet lid 230 is raised.

In this specification, the upper, lower, front, rear, right side, and left side as viewed from the user who is seated on the toilet seat 220 with the toilet lid 230 on the back are referred to as "upper," "lower," and "lower," respectively. "front", "back", "right side", and "left side".

The toilet device 200 may have a heated toilet seat function that warms the toilet seat 220, a private parts cleaning function that cleans the private parts of a user seated on the toilet seat 220, and the like.

The cabinet 100 is placed on the side of the toilet bowl 210. The cabinet 100 is attached to, for example, the right side wall RW or the left side wall LW. In this example, the cabinet 100 is attached to the right wall RW. The cabinet 100 may be attached to the left side wall LW.

The toilet room TR is provided with a door TD for entering and exiting the toilet room TR. In this example, the door TD is provided on the front wall FW. The door TD may be provided, for example, on a wall (for example, the left side wall LW) that faces the wall on which the cabinet 100 of the toilet room TR is provided. In this case, the door TD is provided, for example, at a position that does not overlap the toilet bowl 210 in the left-right direction.

FIG. 2 is a perspective view schematically showing the cabinet according to the embodiment.
FIG. 3 is a sectional view schematically showing a part of the cabinet according to the embodiment.
FIG. 4 is a block diagram schematically showing a part of the cabinet according to the embodiment.
As shown in FIGS. 2 to 4, the cabinet 100 includes a cabinet body 10 and a radio wave sensor 20. Furthermore, in this example, the cabinet 100 further includes a lighting section 30, a control section 40, a washbasin 50, and a cigarette holder 60.

The cabinet body 10 is shaped like a substantially rectangular parallelepiped box and has a storage section 11 in which articles can be stored. In this example, the cabinet body 10 extends further forward than the toilet bowl 210. In other words, in this example, the front end of the cabinet body 10 is located further forward than the front end of the toilet bowl 210. Note that the front end of the cabinet body 10 may be located further back than the front end of the toilet bowl 210.

The cabinet body 10 is attached, for example, to the right side wall RW or the left side wall LW of the toilet room TR. In this example, the cabinet body 10 is attached at a position away from the floor surface FS of the toilet room TR. In other words, in this example, a space is formed between the cabinet body 10 and the floor surface FS. The cabinet body 10 is a so-called half cabinet. The cabinet body 10 may be placed on the floor surface FS of the toilet room TR, for example.

Furthermore, in this example, the cabinet body 10 extends to the rear wall BW. In other words, the rear end of the cabinet body 10 is in contact with the rear wall BW. The rear end of the cabinet body 10 may be located in front of the rear wall BW, or may be located in the rear of the rear wall BW. That is, the cabinet main body 10 may be separated from the rear wall BW, or may be embedded in the rear wall BW.

The storage unit 11 has a first portion 11a that is accessible to the user and a second portion 11b that is not accessible to the user. In other words, the first portion 11a is a portion where the user can take articles in and out, and the second portion 11b is a portion where the user cannot take articles in and out.

The first portion 11a has, for example, a door DR that can be opened and closed on the surface on the toilet bowl 210 side. In this example, the door DR is approximately parallel to the right side wall RW or the left side wall LW of the toilet room TR, and is approximately perpendicular to the floor surface FS of the toilet room TR. The door DR may be inclined with respect to the right side wall RW, the left side wall LW, and the floor surface FS of the toilet room TR.

The door DR is, for example, a push-type door without a handle, and the user can open the door DR by pushing the door DR. In this example, a cigarette holder 60 is provided at the center of the cabinet body 10 in the front-rear direction, and two doors DR are provided in front of the cigarette holder 60 and one door DR is provided behind the cigarette holder 60. In other words, in this example, two first portions 11a are provided in front of the cigarette holder 60 and one first portion 11a is provided in the rear of the cigarette holder 60.

The second portion 11b is provided at the rear of the first portion 11a, which is provided at the rear of the paper winder 60. In other words, the second portion 11b is provided at the rearmost portion of the storage section 11. The second portion 11b has, for example, a side plate provided so as to close the surface on the toilet bowl 210 side. In other words, the surface of the second portion 11b on the toilet bowl 210 side is covered by the side plate. Note that in FIG. 2, for convenience of explanation, a side plate provided on the surface of the second portion 11b on the toilet bowl 210 side is omitted. The second portion 11b is provided as needed and can be omitted. That is, the storage section 11 does not need to have the second portion 11b.

For example, when the cabinet body 10 is installed so as to be embedded in the rear wall BW, the second portion 11b of the cabinet body 10 is installed so as to be embedded in the rear wall BW. In this way, by embedding the second portion 11b of the cabinet body 10 in the rear wall BW, the position of the cabinet body 10 in the front-rear direction can be adjusted.

The radio wave sensor 20 detects a human body in the toilet room TR. The radio wave sensor 20 is, for example, a microwave sensor. The radio wave sensor 20 detects, for example, when a human body enters and exits the toilet room TR, and when a human body sits on the toilet seat 220. In the embodiment, the radio waves emitted from the radio wave sensor 20 can pass through the cabinet body 10 and the wall of the toilet room TR. In other words, the cabinet main body 10 and the walls of the toilet room TR are made of a material that can transmit the radio waves emitted from the radio wave sensor 20.

The radio wave sensor 20 is provided inside the storage section 11 of the cabinet body 10, for example. The radio wave sensor 20 is provided inside the first portion 11a or the second portion 11b of the storage section 11 of the cabinet body 10. In this example, the radio wave sensor 20 is provided inside the second portion 11b.

In this way, by providing the radio wave sensor 20 in the second portion 11b that cannot be accessed by the user, it is possible to prevent the user from accidentally changing the mounting angle of the radio wave sensor 10, etc. Thereby, it is possible to suppress deterioration in the accuracy of detecting a human body in the toilet room TR due to a change in the mounting angle of the radio wave sensor 10 or the like.

The lighting section 30 illuminates the inside of the toilet room TR. As shown in FIGS. 2 and 3, in this example, the illumination unit 30 is provided at the lower part of the cabinet body 10, and irradiates light toward the bottom of the cabinet body 10. Thereby, it is possible to illuminate the floor surface FS and bring about a production effect of light inside the toilet room TR. In this example, the illumination unit 30 is provided at the center of the cabinet body 10 in the front-rear direction, and is located below the cigarette holder 60.

The position where the illumination section 30 is provided is not limited to this. The lighting section 30 may be provided at the top of the cabinet body 10, for example. By providing the lighting section 30 at the top of the cabinet body 10, the top plate (counter) of the cabinet body 10 can be illuminated. Further, the lighting section 30 may be provided under the handwash basin 50, for example. By providing the lighting section 30 under the handwash basin 50, the area around the handwash basin 50 can be illuminated.

The light source of the illumination unit 30 is, for example, an LED (light emitting diode). The light source of the illumination unit 30 is not limited to an LED, and any light source that can emit visible light may be used.

The control unit 40 controls the illumination unit 30 based on the detection result of the radio wave sensor 20. As shown in FIG. 4, the radio wave sensor 20 transmits the detection result to the control unit 40. The control unit 40 controls the operation of the illumination unit 30 based on the detection result transmitted from the radio wave sensor 20. In other words, the control unit 40 transmits a control signal to the illumination unit 30 to control the operation of the illumination unit 30.

In this example, the control section 40 is provided separately from the radio wave sensor 20, but the control section 40 may be provided inside the radio wave sensor 20. Further, the control unit 40 may transmit a control signal to the radio sensor 20 to control the operation of the radio sensor 20. For example, the control unit 40 may transmit a signal to the radio sensor 20 to forcibly turn off the radio sensor 20. In this way, the control unit 40 may not only receive detection results from the radio sensor 20 but also communicate bidirectionally with the radio sensor 20.

For example, when the radio wave sensor 20 detects that a human body enters the toilet room TR, the control unit 40 turns on the lighting unit 30. For example, when the radio wave sensor 20 detects the movement of a human body in the toilet room TR, the control unit 40 turns on the lighting unit 30. For example, when the radio wave sensor 20 detects that a human body leaves the toilet room TR, the control unit 40 turns off the lighting unit 30. At this time, when the radio wave sensor 20 detects leaving the room, the control section 40 may immediately turn off the lighting section 30, or the control section 40 may set a delay time (for example, 90 seconds) and turn off the lighting section 30 after the delay time. You may also turn off the light.

For example, the cabinet 100 may further include an operation section (for example, a switch, a remote control, etc.) for operating the lighting section 30. In addition to the control based on the detection result of the radio wave sensor 20 described above, the control unit 40 may also control the operation of the illumination unit 30 based on, for example, the user's operation of the operating unit.

By providing the lighting unit 30 and the control unit 40 in this way, the lighting unit 30 can be controlled by the control unit 40 in the cabinet 100 based on the detection result of the radio wave sensor 20. Therefore, it is possible to create a lighting effect in the toilet room TR without using a dedicated toilet device. Note that the control unit 40 may control the operation of other devices provided in the toilet room TR based on the detection results of the radio wave sensor 20.

The handwash basin 50 is provided, for example, on the top plate (counter) of the cabinet body 10. The wash basin 50 includes a faucet device 51 and a bowl 52. The bowl 52 is provided below the water spouting part of the faucet device 51 and receives water discharged from the faucet device 51 . Drainage from the bowl 52 is discharged, for example, through a drain pipe (not shown) housed inside the cabinet body 10 to a discharge part (not shown) provided on the wall surface. The handwash basin 50 is provided as needed and can be omitted.

The cigarette holder 60 holds toilet paper TP. The paper roll 60 is provided so that the toilet paper TP can be taken out toward the toilet bowl 210 side. The paper roll 60 is provided as needed and can be omitted.

FIG. 5 is an explanatory diagram showing s-waves and p-waves of radio waves.
As shown in FIG. 5, radio waves include s-waves and p-waves. The s-wave is a component that vibrates in a direction perpendicular to a plane that includes the normal NV to the reflecting surface RS and the maximum directivity direction AX of the radio wave. The p-wave is a component that vibrates in a direction parallel to a plane including the normal NV and the maximum directivity direction AX of radio waves. The maximum directional direction AX of radio waves is the direction in which the intensity of radio waves is maximum within the detection area of the radio wave sensor 20.

When the radio waves emitted from the radio wave sensor 20 hit an object (for example, the cabinet body 10 or the wall of the toilet room TR), they enter at an incident angle θ. At this time, some of the radio waves that hit the object are reflected. The incident angle θ is the angle between the normal line NV and the maximum directivity direction AX of the radio wave.

FIG. 6 is a graph showing an example of a change in reflectance with respect to the incident angle of s-waves and p-waves.
As shown in FIG. 6, the reflectance Rf changes depending on the incident angle θ of the radio wave. Note that the reflectance Rf with respect to the incident angle θ of the radio wave varies depending on the material of the reflecting object. Furthermore, the tendency of change in reflectance Rf with respect to the incident angle θ is different between s-waves and p-waves.

The reflectance Rfs of the s-wave increases as the incident angle θ increases, and decreases as the incident angle θ decreases. In other words, the larger the incident angle θ becomes, the more difficult the s-wave is to pass through, and the smaller the incident angle θ is, the easier it is to pass through the s-wave.

The tendency of change in the reflectance Rfp of p-waves with respect to the incident angle θ changes at the Brewster angle. The Brewster angle is an angle at which the reflectance Rfp of p-waves becomes zero. Note that in this example, the Brewster angle is approximately 72 degrees.

At angles less than Brewster's angle, the reflectance Rfp of p-waves decreases as the incident angle θ increases, and increases as the incident angle θ decreases. That is, at an angle less than Brewster's angle, the larger the incident angle θ becomes, the more easily the p-wave is transmitted, and the smaller the incident angle θ is, the more difficult the p-wave is to be transmitted. On the other hand, at an angle exceeding the Brewster angle, the reflectance Rfp of the p-wave increases as the incident angle θ increases, and decreases as the incident angle θ decreases. That is, at an angle exceeding the Brewster's angle, the larger the incident angle θ becomes, the more difficult the p-wave is to pass through, and the smaller the incident angle θ is, the easier it is to pass through.

In the embodiment, the radio wave sensor 20 is provided such that the first reflectance Rf1 of the radio wave when it is incident on the cabinet main body 10 is smaller than the second reflectance Rf2 of the radio wave when it is incident on the wall of the toilet room TR. It will be done.

In this way, the radio wave sensor 20 is provided so that the first reflectance Rf1 of the radio wave when it enters the cabinet body 10 is smaller than the second reflectance Rf2 of the radio wave when it enters the wall of the toilet room TR. Thus, it is possible to make it easier for radio waves to pass through when they enter the cabinet main body 10, and to make it difficult for the radio waves to pass through when they enter the wall of the toilet room TR. Thereby, it is possible to detect a human body inside the toilet room TR while suppressing the detection of a human body outside the toilet room TR.

The first reflectance Rf1 can be adjusted, for example, by adjusting the first incident angle θ1 of the radio waves with respect to the cabinet body 10. The first incident angle θ1 is the angle between the first normal NV1 to the first reflective surface RS1 of the cabinet body 10 and the maximum directivity direction AX of the radio waves radiated from the radio wave sensor 20 (see FIG. 7). The first incident angle θ1 can be adjusted by, for example, the mounting angle of the radio wave sensor 20.

The second reflectance Rf2 can be adjusted, for example, by adjusting the second incident angle θ2 of the radio waves with respect to the wall of the toilet room TR. The second incident angle θ2 is the angle formed by the second normal NV2 to the second reflective surface RS2 of the wall of the toilet room TR and the maximum directivity direction AX of the radio waves radiated from the radio wave sensor 20 (see FIG. 7). The second incident angle θ2 can be adjusted, for example, by adjusting the mounting angle of the radio wave sensor 20.

In this way, the first reflectance Rf1 and the second reflectance Rf2 can be easily adjusted by adjusting the incident angle θ1 of the radio waves on the cabinet body 10 and the second incident angle θ2 of the radio waves on the wall of the toilet room. can. This makes it easier to improve the accuracy of detecting a human body inside the toilet room TR and suppress the detection of a human body outside the toilet room TR.

Here, for convenience of explanation, it is assumed that the material of the cabinet body 10 and the material of the toilet room TR are the same. Therefore, it can be considered that the dielectric constant of the cabinet body 10 and the dielectric constant of the wall of the toilet room TR are the same. That is, the graph shown in FIG. 6 can be applied to both the first reflectance Rf1 and the second reflectance Rf2. In the embodiment, the material of the cabinet body 10 and the material of the toilet room TR may be the same or different.

In the embodiment, the first reflectance Rf1 and the second reflectance Rf2 are preferably p-wave reflectances Rfp. In this way, by setting the first reflectance Rf1 and the second reflectance Rf2 as the p-wave reflectance Rfp, the selection ratio between the first reflectance Rf1 and the second reflectance Rf2 can be increased. This makes it easier to improve the accuracy of detecting a human body inside the toilet room TR and suppress the detection of a human body outside the toilet room TR.

FIG. 7 is a plan view schematically showing a toilet system including a cabinet according to an embodiment.
As shown in FIG. 7, in this example, the front wall FW of the toilet room TR is approximately parallel to the rear wall BW, and the right side wall RW of the toilet room TR is on the left side. It is approximately parallel to the side wall LW. That is, in this example, the toilet room TR is approximately rectangular when viewed from above. Further, in this example, the cabinet main body 10 has a substantially rectangular shape when viewed from above.

The radio wave sensor 20 is provided on the rear side of the cabinet body 10, and emits radio waves toward the door TD provided on the front wall FW of the toilet room TR. The radio waves emitted from the radio wave sensor 20 are incident on the first reflecting surface RS1 of the cabinet body 10 at a first incident angle θ1, and then are incident on the second reflecting surface of the wall of the toilet room TR, which is a part of the front wall FW. The light is incident on RS2 at a second incident angle θ2.

The first reflective surface RS1 is substantially parallel to the right side wall RW and the left side wall LW of the toilet room TR. The second reflective surface RS2 is substantially parallel to the front wall FW of the toilet room TR.

In this example, the first angle of incidence θ1 is 60 degrees, and the second angle of incidence θ2 is 30 degrees. As shown in FIG. 6, when the first reflectance Rf1 and the second reflectance Rf2 are the p-wave reflectance Rfp, the first reflectance Rf1 when θ=60° is the same as the first reflectance Rf1 when θ=30°. It is smaller than the second reflectance Rf2.

In this way, by providing the radio wave sensor 20 so that the first reflectance Rf1 is smaller than the second reflectance Rf2, the radio waves emitted from the radio wave sensor 20 can easily pass through the reflective surface RS1 of the cabinet main body 10, It becomes difficult for light to pass through the reflective surface RS2 of the wall of the toilet room TR. Thereby, it is possible to make it easier to detect a human body inside the toilet room TR, and to make it difficult to detect a human body outside the toilet room TR.

In this example, the radio wave sensor 20 also connects the toilet seat 220 and the wall of the toilet room located in front of the toilet bowl 210 (i.e., the front A side wall FW) is provided.

In this way, by providing the radio wave sensor 20 so that the toilet seat 220 is located on the maximum directivity direction AX of radio waves emitted from the radio wave sensor 20, it is possible to detect a user sitting on the toilet seat 220. Moreover, by providing the radio wave sensor 20 so that the wall FW of the toilet room located in front of the toilet bowl 210 is located on the maximum direction AX of the radio waves emitted from the radio wave sensor 20, the toilet located in front of the toilet bowl 210 Detection of human bodies outside the wall FW of the room can be suppressed.

In the embodiment, it is preferable that the radio wave sensor 20 is provided such that the maximum pointing direction AX of the radio wave sensor is located above the toilet seat 220. By providing the radio wave sensor 20 at such a position, it is possible to suppress the radio waves emitted from the radio wave sensor 20 from being blocked by the toilet seat 220. Thereby, the human body in the toilet room TR can be easily detected.

FIG. 8 is a plan view schematically showing a modification of the toilet system including the cabinet according to the embodiment.
As shown in FIG. 8, in this example, the front wall FW of the toilet room TR is approximately parallel to the rear wall BW, and the right side wall RW of the toilet room TR is on the left side. It is not parallel to the side wall LW. The wall LW on the left side of the toilet room TR is inclined from the rear to the front toward the right side. That is, in this example, the toilet room TR has a substantially trapezoidal shape when viewed from above. Further, in this example, the cabinet main body 10 has a substantially rectangular shape when viewed from above.

The radio wave sensor 20 is provided on the rear side of the cabinet body 10, and emits radio waves toward the door TD provided on the left side wall LW of the toilet room TR. The radio waves radiated from the radio wave sensor 20 are incident on the first reflecting surface RS1 of the cabinet body 10 at a first incident angle θ1, and then are reflected by a second reflection on the wall of the toilet room TR, which is a part of the wall LW on the left side. The light is incident on the surface RS2 at a second incident angle θ2.

The first reflective surface RS1 is approximately parallel to the right side wall RW of the toilet room TR, but not parallel to the left side wall LW. The second reflective surface RS2 is approximately parallel to the left side wall LW of the toilet room TR, but not parallel to the right side wall RW.

In this example, the first angle of incidence θ1 is 60 degrees and the second angle of incidence θ2 is 40 degrees. As shown in FIG. 6, when the first reflectance Rf1 and the second reflectance Rf2 are the p-wave reflectance Rfp, the first reflectance Rf1 when θ=60° is the same as the first reflectance Rf1 when θ=40°. It is smaller than the second reflectance Rf2.

FIG. 9 is a plan view schematically showing a modification of the toilet system including the cabinet according to the embodiment.
As shown in FIG. 9, in this example, the toilet room TR has a substantially rectangular shape when viewed from above. Further, in this example, the cabinet main body 10 has a substantially trapezoidal shape when viewed from above.

The radio wave sensor 20 is provided on the rear side of the cabinet body 10, and emits radio waves toward the door TD provided on the left side wall LW of the toilet room TR. The radio waves radiated from the radio wave sensor 20 are incident on the first reflecting surface RS1 of the cabinet body 10 at a first incident angle θ1, and then are reflected by a second reflection on the wall of the toilet room TR, which is a part of the wall LW on the left side. The light is incident on the surface RS2 at a second incident angle θ2.

The first reflective surface RS1 is not parallel to the right side wall RW and the left side wall LW of the toilet room TR. The first reflective surface RS1 is inclined leftward from the rear toward the front. The second reflective surface RS2 is substantially parallel to the left side wall LW and the right side wall RW of the toilet room TR.

In this example, the first angle of incidence θ1 is 60 degrees and the second angle of incidence θ2 is 40 degrees. As shown in FIG. 6, when the first reflectance Rf1 and the second reflectance Rf2 are the p-wave reflectance Rfp, the first reflectance Rf1 when θ=60° is the same as the first reflectance Rf1 when θ=40°. It is smaller than the second reflectance Rf2.

As shown in FIG. 8, in the embodiment, the toilet room TR does not have to be rectangular in top view. Moreover, as shown in FIG. 9, in the embodiment, the reflective surface RS1 of the cabinet body 10 does not have to be parallel to the right side wall RW and the left side wall LW of the toilet room TR. In these examples as well, by providing the radio wave sensor 20 so that the first reflectance Rf1 is smaller than the second reflectance Rf2, it is easy to detect a human body inside the toilet room TR, and a human body outside the toilet room TR can be easily detected. can be made difficult to detect.

FIG. 10 is a plan view schematically showing a modification of the toilet system including the cabinet according to the embodiment.
As shown in FIG. 10, in this example, the toilet room TR has a substantially rectangular shape when viewed from above. Further, in this example, the cabinet main body 10 has a substantially trapezoidal shape when viewed from above.

The radio wave sensor 20 is provided on the rear side of the cabinet body 10, and emits radio waves toward the door TD provided on the left side wall LW of the toilet room TR. The radio waves radiated from the radio wave sensor 20 are incident on the first reflecting surface RS1 of the cabinet body 10 at a first incident angle θ1, and then are reflected by a second reflection on the wall of the toilet room TR, which is a part of the wall LW on the left side. The light is incident on the surface RS2 at a second incident angle θ2.

The first reflective surface RS1 is not parallel to the right side wall RW and the left side wall LW of the toilet room TR. The first reflective surface RS1 is inclined rightward from the rear toward the front. The second reflective surface RS2 is substantially parallel to the left side wall LW and the right side wall RW of the toilet room TR.

In this example, the first angle of incidence θ1 is 20 degrees, and the second angle of incidence θ2 is 40 degrees. As shown in FIG. 6, when the first reflectance Rf1 and the second reflectance Rf2 are the s-wave reflectance Rfs, the first reflectance Rf1 when θ=20° is the same as the first reflectance Rf1 when θ=40°. It is smaller than the second reflectance Rf2.

FIG. 11 is a plan view schematically showing a modification of the toilet system including the cabinet according to the embodiment.
As shown in FIG. 11, in this example, the toilet room TR has a substantially rectangular shape when viewed from above. Further, in this example, the cabinet main body 10 has a substantially trapezoidal shape when viewed from above.

The radio wave sensor 20 is provided on the rear side of the cabinet body 10, and emits radio waves toward the door TD provided on the front wall FW of the toilet room TR. The radio waves emitted from the radio wave sensor 20 are incident on the first reflecting surface RS1 of the cabinet body 10 at a first incident angle θ1, and then are incident on the second reflecting surface of the wall of the toilet room TR, which is a part of the front wall FW. The light is incident on RS2 at a second incident angle θ2.

The first reflective surface RS1 is not parallel to the right side wall RW and the left side wall LW of the toilet room TR. The first reflective surface RS1 is inclined rightward from the rear toward the front. The second reflective surface RS2 is substantially parallel to the front wall FW of the toilet room TR.

In this example, the first angle of incidence θ1 is 20 degrees, and the second angle of incidence θ2 is 40 degrees. As shown in FIG. 6, when the first reflectance Rf1 and the second reflectance Rf2 are the s-wave reflectance Rfs, the first reflectance Rf1 when θ=20° is the same as the first reflectance Rf1 when θ=40°. It is smaller than the second reflectance Rf2.

As shown in FIGS. 10 and 11, in the embodiment, the first reflectance Rf1 and the second reflectance Rf2 may be the s-wave reflectance Rfs. In these examples as well, by providing the radio wave sensor 20 so that the first reflectance Rf1 is smaller than the second reflectance Rf2, it is easy to detect a human body inside the toilet room TR, and a human body outside the toilet room TR can be easily detected. can be made difficult to detect.

The embodiments of the present invention have been described above. However, the invention is not limited to these descriptions. Appropriate design changes made by those skilled in the art with respect to the above-described embodiments are also included within the scope of the present invention as long as they have the characteristics of the present invention. For example, the shape, size, material, arrangement, etc. of each element included in the cabinet etc. are not limited to those illustrated and can be changed as appropriate.
Furthermore, the elements of each of the embodiments described above can be combined to the extent technically possible, and combinations of these are also included within the scope of the present invention as long as they include the features of the present invention.

10 Cabinet main body, 20 Radio wave sensor, 30 Lighting section, 40 Control section, 50 Wash basin, 51 Faucet device, 52 Bowl, 60 Cigarette roll device, 100 Cabinet, 200 Toilet device, 210 Toilet bowl, 220 Toilet seat, 230 Toilet lid, 500 Toilet system, AX maximum orientation direction, BW rear wall, DR door, FS floor, FW front wall, LW left wall, NV normal, NV1, NV2 1st, 2nd normal, Rf Reflectance, Rf1, Rf2 First and second reflectance, Rfs S-wave reflectance, Rfp P-wave reflectance, RS Reflection surface, RS1, RS2 First and second reflection surface, RW Right side wall, TD Door, TP Toilet paper, TR Toilet room, θ Incident angle, θ1, θ2 1st and 2nd incident angle

Claims (5)

A cabinet placed to the side of a toilet bowl inside a toilet room,
a cabinet body having a storage section capable of storing items therein;
a radio wave sensor that is provided inside the storage section and that transmits through a transparent surface of the storage section to detect a human body in the toilet room;
a lighting section that is provided at a lower part of the cabinet body and indirectly illuminates the interior of the toilet room based on the detection result of the radio wave sensor;
Equipped with
The transparent surface is not parallel to a wall surface on which the cabinet body is provided,
The cabinet, wherein the radio wave sensor is installed such that a first angle of incidence of the radio wave when it enters the cabinet main body is smaller than a second angle of incidence of the radio wave when it enters the wall of the toilet room. . The storage section is divided into a plurality of storage spaces, and includes a storage space below the washbasin and other storage spaces,
The cabinet according to claim 1, wherein the radio wave sensor is provided inside the other storage space. The cabinet body includes a top plate and a plate portion located below the top plate,
The cabinet according to claim 2, wherein the radio wave sensor is provided on the upper surface of the plate part. The radio wave sensor is provided so that the toilet seat and the wall of the toilet room located in front of the toilet bowl are located in the maximum direction of the radio wave sensor when viewed from above. 3. The cabinet according to any one of 3. The radio wave sensor is provided such that a first reflectance when the radio wave sensor is incident on the cabinet main body is smaller than a second reflectance when the radio wave sensor is incident on the wall of the toilet room. 4. The cabinet according to any one of 4.

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