JP2002051941A - Toilet seat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet seat device which can suitably control a toilet environment by preventing misjudgment as to existence of a user by judging detection results of a seating detection means and a human body detection means in time series. SOLUTION: With the toilet seat device provided with a seating detection means 9 for detecting a sitting position of a user, a human body detection means 8 for detecting a human body in front of the toilet bowl, a control device 15 for controlling a toilet environment according to the seating detection means 9 and the human body detection means 8, the control device 15 controls a toilet environment by judging in time series detection results of the seating detection means 9 and the human body detection means 8 to compensate possible miss- detection of the seating detection means 9 with the human body detection means 8 as well as to compensate possible miss-detection of the human body detection means 8 with the seating detection means 9, so that it has no fear of mistakenly controlling the toilet environment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat detecting means for detecting a user's sitting position, a human body detecting means for detecting a human body in front of a toilet, and a toilet environment (toilet seat temperature) based on the seat detecting means and the human body detecting means. , Indoor temperature, toilet seat and toilet lid position, etc.)
For controlling a toilet seat device.

[0002]

2. Description of the Related Art Conventionally, in this type of toilet seat, the toilet environment is controlled in accordance with one of a seating detection result of a seating detecting means for detecting a sitting position on the toilet seat and a human body detecting result of a human body detecting means. For example, in the case of an optical type human body detecting means, when a predetermined light signal is detected, it is recognized that the user is present in the toilet environment, and when the predetermined light signal is not detected, the user is in the toilet environment. In order to control the toilet environment, it was recognized that the toilet was not present.

[0003]

However, in the structure of the above-mentioned conventional example, especially in the case of the seating detecting means and the human body detecting means of the optical distance measuring type, for example, a user who wears clothes that does not sufficiently reflect an optical signal. In this case, since the detection areas of the seat detection means and the human body detection means are different on the toilet seat or in front of the toilet, respectively, the human body detection means may not be detected even while sitting, and therefore, when there is no human body detection If it is determined that the user is no longer present and the toilet environment is controlled, the toilet environment becomes uncomfortable for the user. Also, the amount of received light may vary depending on the sitting posture, and the seating detection means may also be undetected.Therefore, even if the seating detection is lost and the user is immediately determined to be absent and the toilet environment is controlled, the same applies. This results in an uncomfortable toilet environment for the user. The present invention, in order to solve the above problems, by determining the detection results of the seat detection means and the human body detection means in time series,
An object of the present invention is to provide a toilet seat device that prevents erroneous determination of the presence or absence of a user and appropriately controls a toilet environment.

[0004]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a seating detecting means for detecting a sitting position of a user, a human body detecting means for detecting a human body in front of a toilet,
In a toilet seat device having a control device for controlling a toilet environment based on the seat detection device and the human body detection device, the control device discriminates detection results of the seat detection device and the human body detection device in a time series and controls the toilet environment. Accordingly, the erroneous detection by the seating detecting means can be complemented by the human body detecting means, and the erroneous detection by the human body detecting means can be complemented by the seating detecting means, so that an erroneous toilet environment is not controlled.

[0005] In the invention of claim 2, in addition to the invention of claim 1, after the detection of the sitting position is lost by the seat detection means, the detection of the human body is further confirmed by the human body detection means, and the detection of the human body is further lost by the human body detection means. In this way, it is determined that a person has left the toilet environment and the toilet environment is controlled, so that the toilet environment can be set to an environment corresponding to a state where no user is present in a state where the user is not present.

According to a third aspect of the present invention, in addition to the first aspect, after the detection of the sitting position by the seating detecting means is stopped,
If the human body is not detected by the human body detection means within a predetermined time, the toilet environment is configured to be kept as it is, so if it is not clear that the user has disappeared, the same toilet as the user is present By keeping the environment, there is no discomfort to the user.

According to a fourth aspect of the present invention, in addition to the third aspect of the present invention, if the human body detection by the human body detection means is not performed within the second predetermined time before the detection of the sitting position by the seating detection means is stopped, the toilet environment is changed. Since it is configured to maintain the state as it is, by checking the state immediately before the non-seating detection, it is possible to more accurately detect that the user is not present, and to eliminate the unclearness.

According to a fifth aspect of the present invention, in addition to the first aspect, when the human body is detected by the human body detection means within a predetermined time after the detection of the sitting position by the seating detection means is stopped, the human body detection is performed. It is configured to return the toilet environment to the initial state when it runs out, so it is ensured that there is no user, and by maintaining the optimal toilet environment for the unused state, for example, suppressing wasteful energy consumption be able to.

According to a sixth aspect of the present invention, in addition to the fifth aspect of the invention, if the human body is detected by the human body detecting means within a second predetermined time before the detection of the sitting position by the seating detecting means disappears, the human body detection is performed. Since the toilet environment is configured to return to the initial state when there is no more, by checking the state immediately before non-detection of seating, even a user who has left quickly can reliably detect that he / she has left.

Further, according to the invention of claim 7, in addition to the invention of claim 1, if the detection of the human body by the human body detecting means is not performed within a predetermined time after the detection of the sitting position by the seating detecting means, the abnormal mode is set. Since it is configured to shift, it is possible to specify a mode that is not normally possible and notify the user of, for example, a failure of the toilet seat device.

According to the invention of claim 8, in addition to the invention of claim 7, if there is no human body detection by the human body detection means within the second predetermined time before the detection of the sitting position by the seat detection means, the abnormal mode is set. Since the system is configured to shift, it is possible to prevent erroneous notification of a failure or the like by a user who has left quickly.

In the ninth aspect of the present invention, in addition to the first to eighth aspects, while the sitting position is detected by the seating detecting means, it is assumed that the human body is detected by the human body detecting means, and the toilet environment is detected. Therefore, while the user is sitting, the toilet environment can be reliably set according to the sitting state.

According to the tenth aspect of the present invention, the seating detecting means for detecting the user's sitting position, the human body detecting means for detecting the human body in front of the toilet, and the toilet environment is controlled based on the seating detecting means and the human body detecting means. In the toilet seat device having the control device, while the sitting position is detected by the sitting detecting means, the toilet environment is controlled assuming that the human body is detected by the human body detecting means. The toilet environment can be set according to the sitting position.

According to an eleventh aspect of the present invention, in addition to the first to tenth aspects, the human body detecting means is constituted by an optical distance measuring sensor. Nevertheless, it is possible to accurately detect the leaving of the user.

According to a twelfth aspect of the present invention, in addition to the first to eleventh aspects, in the case where the seating detection is performed by the seating detection means after the human body detection by the human body detection means, it is determined that the use is started and the toilet is started. Since the environment is controlled, unnecessary control is not performed during mere passage or cleaning.

According to a thirteenth aspect of the present invention, in addition to the first to twelfth aspects, when the user performs any operation related to the toilet environment, the automatic control of the toilet environment related to the operation is performed for a predetermined time. For this reason, unnecessary control such as repeating the automatic control related to the control instructed by the user again is not performed.

[0017]

An embodiment of the present invention will be described below with reference to the accompanying drawings. In addition, in the drawing, "human body sensor"
The phrase "human body detection sensor" in the specification. FIG. 1 is a perspective view showing the external appearance of the toilet seat device of the present invention, FIG. 2 is a side view for explaining a schematic detection range of each of the seat detection means 6 and the human body detection means 7, and FIGS. It is a mimetic diagram for explaining a standard flow after entering a room, using toilet seat device 1, and leaving a room outside a toilet room.

In FIG. 1, reference numeral 1 denotes a toilet seat device which houses a local washing device and the like and rotatably supports a toilet lid 3 and a toilet seat 4, and 2 denotes a toilet body for adding a toilet. The toilet seat device 1 is installed thereon. Toilet seat device 1
A control unit 1 for controlling the above-described local cleaning device and the like is provided inside the unit.
5 is stored. 3 is a toilet lid, 4 is a toilet seat in which a heater for heating is disposed, 5 is a translucent sensor window that transmits infrared rays, 6 is a nozzle that discharges washing water when cleaning a local area, and 8 is infrared rays. The seating detecting means 9 comprising a reflection type distance measuring sensor used, and the human body detecting means 9 comprising a reflection type distance measuring sensor using infrared rays. Reference numeral 10 denotes an approximate detection range of the seating detection means 6;
3 shows an approximate detection range of the human body detecting means 7. Note that a seating detection unit 9 and a human body detection unit 8 are stored inside the sensor window 5. As shown in the figure, since the detection ranges 10 and 12 of the seating detection means 6 and the human body detection means 7 are different from each other, a normal user enters the toilet (FIG. 3A).
3), when the user enters the detection range B of the human body detecting means 8 (the state shown in FIG. 3B), the human body detecting means 8 first detects the human body, and then the user sits on the toilet seat 4. The seating detection means 9 performs seating detection.

When the user is seated on the toilet seat 4, the seat detecting means 9 detects the seat and detects that the user is seated. However, the human body detection means 8 has the human body detection range 1
As shown in FIG. 0, the detection of the human body is unstable during the seating of the user because it is set so as to detect the front of the human body in the seated state. And detection / non-detection may be repeated). Therefore, while the seating detection unit 9 performs the seating detection, the human body detection is regarded as the detection of the human body without depending on the output of the human body detection unit 8, so that the possibility of the erroneous human body detection can be significantly reduced.

When the user rises from the sitting state (the state shown in FIG. 4A) from the toilet seat 4 and leaves the toilet room, first, the output of the seating detecting means 9 is turned off.
Make sure that Since this means that the user stands up in front of the toilet, the output from the human body detecting means 8 is turned ON. (State shown in FIG. 4 (b)) Thereafter, since the user leaves from the front of the toilet, the output by the human body detecting means 8 is turned off. (State shown in FIG. 4 (c)) That is, after the seating detecting means 9 has performed non-seating detection, it is confirmed that the human body is detected by the human body detecting means 8, and thereafter the human body detecting means 8 does not detect the human body. Then, by judging that the user has left the toilet room, the possibility of erroneous human body detection can be significantly reduced.

Next, control of the toilet environment using the above signal processing will be specifically described with reference to FIG. FIG. 5 is a block diagram of a control system according to the present invention. As a device in which the control unit 15 controls the toilet environment based on signals from the seat detection unit 9 and the human body detection unit 8, the toilet seat rotation unit 17 and the toilet lid rotation The toilet environment is controlled using the means 18, the indoor heating device 19, the heating toilet seat device 4, the air cleaning device 20, and the like. Also, it goes without saying that there is no problem even if the means for controlling the toilet environment is other than those mentioned here.

FIG. 6 is a flowchart showing the operation in the embodiment of the present invention. The initial state is when no person exists in the toilet environment, that is, when the human body detection is in the non-detection state and the seating detection is in the non-detection state. In step 1, human body detection is confirmed. The case where the human body approaches the front of the toilet seat device 1 corresponds to this. When the human body detection is detected in step 1, the process proceeds to step 2. If the human body detection is not detected in step 1, the stool lid open flag is turned off and the trial of the human body detection is repeated. In step 2, the state of the stool lid is detected. If the flight cover is opened in advance, it is not necessary to open the flight cover automatically, so the process proceeds to step 13 and turns on the flight cover open flag, and then returns immediately after the start. If it is determined in step 2 that the toilet lid is in the closed state, the process proceeds to step 3. In step 3, the stool lid flag is checked. The toilet lid flag is set to ON if the toilet lid is open at least once while the human body is being detected by the human body detecting means. Only when the human body is in the non-detection state by the human body detection means, the toilet lid open flag is set to OFF. If the flight lid flag is ON in step 3, since the flight lid is once open while the user is being detected, it is not necessary to open the flight lid again, so the process returns immediately after the start. If the flight lid flag is OFF in step 3,
Since it is known that the toilet lid has never been opened since the human body was detected by the human body detecting means, the process proceeds to step 4 and a request for opening the toilet lid is issued. When a request for opening the lid of the toilet is issued, an electric opening and closing device (not shown) for the lid of the toilet performs an operation of opening the lid of the toilet, and the lid of the toilet is opened. Further, since the lid is opened while the human body is being detected by the human body detecting means, the toilet lid opening flag is set to ON in step S5. In a normal use situation, it can be assumed that the user is seated on the toilet seat device 1 at the time of step 5. In step 7, the seating state is checked. If it is seated, it will be in a standby state in that state. If it is determined in step 7 that the seating detection means has not detected seating, the process proceeds to step 8. The transition from step 7 to step 8 assumes that the user is standing up from the toilet seat device 1. In step 8, it is determined whether the human body detection is detected by the human body detection means for a predetermined time or more. In the case of the present embodiment, when the user performs an operation of standing up from the seat device 1 to the front of the toilet seat device 1 from the seated state, there is a difference between the detection ranges of the human body detecting means and the seat detecting device as shown in FIG. Therefore, the human body detecting means shifts from the detected state to the non-detected state by the human body detecting means after the seating detecting means determines that the seat is not detected. Therefore, in step 8, human body detection after non-seating detection is determined. If the detection of the human body is longer than a predetermined time, the sequence is regarded as a normal sequence and the process proceeds to the next sequence. If no human body is detected for more than the predetermined time in step 8, it is determined that it is not in a normal use state, and the process proceeds to step 16 to perform an abnormal end process. In step 9, the non-human body detection is detected by the human body detecting means. If it is determined that the human body is not detected, the process proceeds to step S10. If it is not detected that the human body is not detected, the process proceeds to step 17 to determine whether or not a person is seated. Steps 9 and 17 form a loop when human body detection is not detected and seating detection is not detected. When the human body detection is not detected, the process proceeds to step 10 as described above, and when the seating detection is not detected, the process proceeds to step 7. Although not shown in the flow chart of this time, if both the human body detection and the seating detection are detected in steps 9 and 17 and a loop state is entered, a separate time-measuring means (not shown) is used to forcibly set a predetermined time. It is also possible to perform an abnormal termination process to prevent an infinite loop. In step 10, since it is determined that the user has finished using the toilet seat device 1 and left after sitting on the toilet seat device 1 according to the flow up to now, the toilet lid closing drive timer for automatically closing the toilet lid is driven. Is started and the process proceeds to step 11. In step 11, it is determined whether the toilet lid closing drive timer has passed a predetermined time. In addition, when the seat is detected during the determination, it is possible to assume that the user is in the use state of the toilet seat device 1 again, so the process proceeds from step 17 to step 7. When it is determined in step 11 that the toilet lid closing drive timer has elapsed for a predetermined time, the process proceeds to step 12 and the toilet lid is automatically closed. In this case, the toilet lid electric opening / closing device (not shown) performs an operation of closing the toilet lid, and the toilet lid is closed. When this flow is established, the user has left after using the toilet seat device 1, and both the human body detecting means and the seating detecting means are in the non-detecting state.

FIGS. 7 and 8 are time charts showing the operation in the embodiment of the present invention. The initial state is when there is no user in the toilet environment. Human body detection means ON
That is, when it is confirmed that the user is in the toilet environment, the toilet lid is automatically opened (p1). At the same time, the state detected by either the human body detection means or the seating detection means is measured at t1. Thereafter, in a state where the user is sitting on the toilet seat device, both the human body detecting means and the seating detecting means are O
The state becomes the N state, that is, the detection state. When the user stands up from the toilet seat device, the seating detection means enters an OFF state, that is, a non-detection state. Thereafter, when the human body detection means changes from ON to OFF within a certain time t2, that is, from the human body detection state to the human body non-detection state, the toilet cleaning motor is automatically driven at p3 after the elapse of the time t4, and the toilet cleaning is performed. I do. After the elapse of time t3, the toilet lid is automatically closed at p2.

FIG. 8 is a time chart for explaining a case in which a disappearance delay of the detection signal of the human body detecting means is provided when the signal of the human body detecting means disappears earlier or almost simultaneously with the signal of the seating detecting means. The initial state is when there is no user in the toilet environment. Human body detection means ON
That is, when it is confirmed that the user is in the toilet environment, the toilet lid is automatically opened (p1). At the same time, the state detected by either the human body detection means or the seating detection means is measured at t1. Thereafter, in a state where the user is sitting on the toilet seat device, both the human body detecting means and the seating detecting means are O
The state becomes the N state, that is, the detection state. At this time, if the user moves away from the toilet seat device in the lateral direction in the human body detection range and the seating detection range as shown in FIG. 2, the detection signal by the human body detection means is output as shown in p4 of FIG. May be turned off earlier than the detection signal due to In this case, the detection signal from the human body detecting means is lost (t6).
Is provided. Therefore, if the user turns off the signal by the seating detection means within the disappearance delay (t6) when the user separates from the toilet seat device in the lateral direction, the toilet is washed at p3 and the toilet is washed at p2 as in the operation described in FIG. The toilet lid closing drive operates automatically.

FIGS. 9 and 10 are other time charts showing the operation in this embodiment. As shown in the figure, in this example, when the user sits on the toilet seat 12 for a certain period of time t11 or more (in this example, 6 seconds or more), it is assumed that the seating operation has been substantially performed for the first time. Perform the operation of
The user places the toilet seat 12 for a predetermined time t13 (30 in this example).
Second), after the user continuously sits down, separates from the toilet seat 12 and detects the user within a predetermined time t14 (about 3 seconds in this example), after a lapse of a predetermined time t15 after the disappearance of the detection signal (in this example). At about 6 seconds), the valve driving device 34 is largely washed, and the toilet body 10 is largely washed, and the measured value of the sitting time is reset.

If the human body is not detected within a predetermined time t14 (here, 3 seconds), the toilet flushing is not executed (see FIG. 9B), but this is inevitable before the person leaves the room. Therefore, if no detection is made, it is determined that some abnormality has occurred. Since the human body detection range and the seating detection range shown in FIG. 2 are used, when the user leaves the toilet device 10 in the lateral direction, the detection signal from the human body detection sensor 17 is used as shown in FIG. Since the detection signal may disappear before the detection signal by the sensor 16, even if the human body is not detected within the predetermined time t14, the predetermined time t16 before the disappearance of the seating detection signal.
It is checked whether the human body detection signal has disappeared within 3 seconds (here, 3 seconds). If the human body detection signal has disappeared, the valve driving device 34 is largely washed after a predetermined time t16 and a predetermined time t15 have elapsed since the disappearance. Operate. (See FIG. 9 (a))

Further, as shown in FIG. 10, even when the human body detection signal disappears during the seating detection, the control is continued assuming that the human body detection signal is present.

On the other hand, neither the large washing switch nor the small washing switches 26A and 26B are operated, and the three washing switches 26A and 26B
When the user detaches from the toilet seat 12 after elapse of 0 seconds or more, it is assumed that the user has made a big use, and the large flush of the toilet body 10 is automatically performed as described above, and the sitting time is reduced. The measurement value is reset. (FIG. 9
(See (a))

As described above, in the toilet apparatus of this embodiment,
The user's sitting time on the toilet seat 12 is measured, and if the sitting time is shorter than the predetermined time t13 (30 seconds in this example), the user does not perform the operation for toilet flushing. Also, the small flush of the toilet body 10 is automatically performed after leaving the room. That is, when the sitting time is short, it is considered that the user has made small use, and the toilet body 10 is slightly washed. On the other hand, the sitting time is a predetermined time t.
If the time is 13 or more, large flushing of the toilet body 10 is automatically performed after leaving the room. That is, in the toilet apparatus of the present embodiment, it is determined whether the toilet is large or small based on the length of the sitting time, and the toilet main body 10 is automatically washed extensively or small according to the determination. Thereby, the toilet body 10 can be properly cleaned without using a large amount of water wastefully.

On the other hand, in the toilet apparatus of this embodiment, if there is no human body detection signal within a predetermined time t14 after the disappearance of the seating signal, it is regarded as abnormal and the toilet cleaning is canceled and the toilet environment is maintained as it is. (See FIG. 9B)

In the case of the toilet apparatus of this embodiment, the toilet is automatically cleaned after the toilet is used. Therefore, even if the user forgets to operate the operation unit for cleaning the toilet, the toilet is not cleaned. The problem that the next user feels uncomfortable can be solved. In addition, since the toilet bowl is not cleaned while staying in the toilet room, the user can check the condition of his or her own stool, and thus can manage his / her own health.

FIG. 11 shows the outputs of the human body detecting means and the seating detecting means, and the toilet environment control means (toilet seat heater, hot water heater,
It is a time chart explaining the example of control timing of (room toilet heating). The initial state is when there is no user in the toilet environment. When the human body detection means is turned on, that is, when it is confirmed that the user is in the toilet environment, the stool lid is automatically opened (p1). At the same time, a toilet heater,
Turn on the hot water heater and the heater for toilet room heating (p.
7, p8, p9). Thereafter, the user is seated on the toilet seat device, but the toilet environment control means continues to operate. When the user stands up from the toilet seat after adding a task, the signal of the seating detecting means is turned off. At this time, it is determined that there is no need to operate the toilet seat heater and the hot water heater, and the operations are turned off. When the user stands up from the toilet seat, the signal from the human body detection unit remains ON because the user is still in the toilet environment. At this time, the toilet room heating is operated to control the inside of the toilet environment to an appropriate room temperature. Thereafter, when the user finishes using the toilet and exits the toilet environment, that is, when it recognizes that the signal from the human body detecting means has changed from ON to OFF after the signal from the seating detecting means has turned OFF, the toilet indoor heating is turned on. Turn off the operation. Thereby, when the user is not in the toilet environment, the operations of the toilet seat heater, the hot water heater, and the toilet indoor heating can be reliably turned off, so that the toilet environment can be appropriately controlled and energy can be saved.

FIG. 12 is a time chart for explaining the outputs of the human body detecting means and the seating detecting means, and control timing examples of the toilet environment control means (opening / closing state of the toilet lid, operation of the toilet flushing motor). The initial state is when there is no user in the toilet environment. When the human body detecting means is turned on, that is, when it is confirmed that the user is in the toilet environment, the toilet lid is automatically opened. (P1). Thereafter, the user is seated on the toilet seat device, but the toilet environment control means continues to operate. When the user gets up from the toilet seat after adding a task, the signal of the seating detection means is turned off. At this time, when the user presses the toilet lid closing operation switch provided manually or on the remote controller to close the toilet lid 3 (P8), the toilet lid 3 or the toilet lid provided near the hinge of the toilet seat 4 is closed. The closed state of the toilet lid 3 is detected by the toilet seat open / closed state detection means, and the toilet lid 3 is not automatically opened during the predetermined auto-open prohibition time t8 even if the human body detection sensor is turned on (P10). When the human body detection is turned ON after the elapse of the opening prohibition time t8 (P11), the stool lid 3 is automatically opened (P12). In this manner, when the toilet lid 3 is closed by the user's intention (P8), the toilet lid is not opened even if the human body detection sensor is turned on during the automatic closing prohibition time t8. When the user stays in the toilet environment for the purpose of washing his / her hands after adding the toilet, the toilet environment is appropriately controlled because the toilet lid 3 is not carelessly opened. Although the opening and closing of the toilet lid 3 has been described as an operation example, a similar automatic operation prohibition time is provided in other control of toilet environment control (toilet washing, toilet indoor heating, toilet seat temperature, hot water heater temperature) and the like. It goes without saying that appropriate control can be performed.

[0034]

As described above, the toilet seat device of the present invention performs the human body detection without erroneous operation by skillfully utilizing the difference in the detection range between the seating detection means and the human body detection means, thereby obtaining the following effects. . (1) Since the presence or absence of a user in the toilet environment is determined by skillfully utilizing the detection results of the seating detection means and the human body detection means, the possibility of erroneously detecting a user can be significantly reduced. (2) While the sitting position is detected by the seating detecting means, it is considered that the human body is detected by the human body detecting means, so that there is no erroneous detection of the human body detection, and the toilet environment can be appropriately controlled. (3) After the disappearance of the seating detection, the detection of the human body is confirmed, and the detection of the non-human body is detected after a lapse of a certain period of time, thereby determining that the user has disappeared from the toilet environment. The toilet environment can be properly controlled.

[Brief description of the drawings]

FIG. 1 is a perspective view of a toilet seat device 1 of the present invention.

FIG. 2 is a diagram illustrating a seat detection unit 6 and a human body detection unit 7 according to the present invention.
Side view schematically showing each of the detection ranges A and B of FIG.

FIGS. 3A and 3B are diagrams illustrating a state of non-detection of a seat and a non-detection of a human body according to an embodiment of the present invention, a diagram of a detection state of a human body according to an embodiment of the present invention, and FIG. Detection state diagram

FIG. 4A is a diagram illustrating a state of detecting a seat according to an embodiment of the present invention;
(B) A human body detection state diagram of one embodiment of the present invention, (c) A seating non-detection state and a human body non-detection state diagram of one embodiment of the present invention

FIG. 5 is a block diagram of a control system in the toilet seat device 1 according to one embodiment of the present invention.

FIG. 6 is a flowchart of a control system in the toilet seat device 1 according to one embodiment of the present invention.

FIG. 7 is a time chart of a control system in the toilet seat device 1 according to one embodiment of the present invention.

FIG. 8 is a time chart of a control system in the toilet seat device 1 according to one embodiment of the present invention.

FIG. 9 is a time chart of toilet environment control in the toilet seat device 1 according to one embodiment of the present invention.

FIG. 10 is a time chart of toilet environment control in the toilet seat device 1 according to one embodiment of the present invention.

FIG. 11 is a time chart illustrating an example of control timing of toilet environment control means (toilet seat heater, hot water heater, and toilet indoor heating) in the toilet seat device 1 according to one embodiment of the present invention.

FIG. 12 is a time chart for explaining a control timing example of the toilet environment control means (opening / closing state of the toilet lid, operation of the toilet flushing motor) in the toilet seat device 1 according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toilet seat device 2 Toilet main body 3 Toilet lid 4 Toilet seat 5 Sensor window 6 Nozzle 7 Seating detection means detection range (conceptual diagram) 8 Human body detection means 9 Seating detection means 10 Human body detection means detection range example (large reflectance) 11 Human body detection means Example of detection range (small reflectance) 12 Example of detection range of seating detection means (large reflectance) 13 Example of detection range of seating detection means (small reflectance) 14 Toilet user schematic diagram 15 Toilet seat device controller (control device) 16 Sensor drive Unit 17 Toilet seat rotating means 18 Toilet lid rotating means 19 Indoor heating device 20 Air cleaning device 21 Toilet seat device operating means 22 Indoor temperature sensor

Claims (13)

[Claims] 1. A toilet seat comprising: seat detection means for detecting a user's sitting position; human body detection means for detecting a human body in front of a toilet; and a control device for controlling a toilet environment based on the seat detection means and the human body detection means. In the apparatus, the control device determines the detection results of the seat detection means and the human body detection means in a time series and controls the toilet environment. 2. The toilet seat device according to claim 1, wherein after the detection of the sitting position is lost by the seating detecting means, the human body is further confirmed by the human body detecting means, and then the human body is lost by the human body detecting means. A toilet seat device characterized in that the toilet seat is determined and the toilet environment is controlled. 3. The toilet seat device according to claim 1, wherein the toilet environment is maintained as it is if no human body is detected by the human body detection means within a predetermined time after the disappearance of the sitting position detection by the seating detection means. Toilet seat device characterized. 4. The toilet seat device according to claim 3, wherein the toilet environment is maintained as it is when no human body is detected by the human body detection means within a second predetermined time before the detection of the sitting position by the seating detection means disappears. Toilet seat device characterized by doing. 5. The toilet seat device according to claim 1, wherein when the human body is detected by the human body detection means within a predetermined time after the detection of the sitting position by the seating detection means, the toilet environment is reset when the detection of the human body is lost. A toilet seat device characterized by returning to an initial state. 6. The toilet seat device according to claim 5, wherein if there is a human body detection by the human body detection means within a second predetermined time before the detection of the sitting position by the seating detection means disappears, the toilet when the human body detection is lost. A toilet seat device for returning an environment to an initial state. 7. The toilet seat device according to claim 1, wherein after the detection of the sitting position by the seating detecting means is stopped, if the human body detecting means does not detect the human body within a predetermined time, the mode shifts to the abnormal mode. Toilet seat device. 8. The toilet seat device according to claim 7, wherein if there is no human body detection by the human body detection means within a second predetermined time before the detection of the sitting position by the seating detection means disappears, the mode shifts to an abnormal mode. And toilet seat device. 9. The toilet seat device according to claim 1, wherein the seating position is detected by the seating detecting means.
A toilet seat device that controls a toilet environment on the assumption that a human body is detected by human body detection means. 10. A toilet seat comprising: seat detection means for detecting a user's sitting position; human body detection means for detecting a human body in front of a toilet; and a control device for controlling a toilet environment based on the seat detection means and the human body detection means. In the apparatus, the toilet environment is controlled assuming that the human body is detected by the human body detecting means while the sitting position is detected by the seating detecting means. 11. The toilet seat device according to claim 1, wherein said human body detecting means is constituted by an optical distance measuring sensor. 12. The toilet seat device according to claim 1, wherein when the seat detection is performed by the seat detection unit after the human body detection by the human body detection unit, it is determined that the use is started and the toilet environment is controlled. A toilet seat device characterized by the above-mentioned. 13. The toilet seat device according to claim 1, wherein the control device controls the toilet environment while the user changes the control of the toilet environment or the control state of the toilet device with respect to the control device. Is a toilet seat device in which control of the toilet environment based on the seating detecting means, the human body detecting means, and the like is prohibited for a predetermined time.