Toilet system

Abstract

To provide a toilet system capable of suppressing compression of data capacity in a control unit on a toilet bowl side.SOLUTION: A toilet system comprises a toilet seat device installed on a toilet bowl and a solenoid valve device that supplies wash water to the toilet bowl, wherein the toilet seat device has a functional part and a first control unit that controls the functional part, the solenoid valve device has a solenoid valve that performs an opening / closing operation between an open state allowing the wash water to flow to the toilet bowl and a closed state blocking the wash water from flowing to the toilet bowl, and a second control unit that controls operation of the solenoid valve by being actuated by electric power supplied from the first control unit, and the second control unit has a storage part in which a plurality of wash modes related to supply of the wash water to the toilet bowl are stored.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] FIELD OF THE DISCLOSURE Aspects of the present invention relate generally to toilet systems. [Background technology]

[0002] 2. Description of the Related Art A toilet system is known that can set a number of flushing modes with different flush patterns for large and small flushes for flushing a toilet bowl (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-23715 A Summary of the Invention [Problem to be solved by the invention]

[0004] The toilet system in Patent Document 1 stores multiple flushing modes in a control unit installed in the toilet bowl. In such a case, the data capacity is compressed, and it may become difficult to add other additional functions or new flushing modes.

[0005] The present invention has been made based on the recognition of such problems, and aims to provide a toilet system that can prevent the data capacity of the control unit on the toilet side from being compressed. [Means for solving the problem]

[0006] A first invention is a toilet system comprising a toilet seat device installed on a toilet bowl, and a solenoid valve device that supplies flushing water to the toilet bowl, the toilet seat device having a functional unit and a first control unit that controls the functional unit, the solenoid valve device having a solenoid valve that opens and closes between an open state that allows the flushing water to flow to the toilet bowl and a closed state that blocks the flushing water from flowing to the toilet bowl, and a second control unit that operates with power supplied from the first control unit to control the operation of the solenoid valve, and the second control unit having a memory unit in which a plurality of flushing modes related to the supply of flushing water to the toilet bowl are stored.

[0007] According to this toilet system, since multiple flushing modes are stored in the memory section of the second control section, the solenoid valve device can be adapted to multiple types of toilets. Also, since the second control section of the solenoid valve device is supplied with power from the first control section, it is not necessary to prepare separate outlets for connecting the toilet seat device and the solenoid valve device. Also, since multiple flushing modes are stored in the memory section of the second control section, it is possible to alleviate data volume pressure without increasing the capacity of the first control section of the toilet seat device. Therefore, it is possible to add new flushing mode information to the second control section and add toilet seat device functions to the first control section.

[0008] A second invention is a toilet system according to the first invention, characterized in that the second control unit detects a solenoid valve operation signal for operating the solenoid valve based on the power cut-off state of the power supplied from the first control unit.

[0009] According to this toilet system, the second control unit can determine whether or not power is being supplied, and thus flushing control can be performed using the power supply as a drive signal for flushing. By using the same line (cable) for the solenoid valve operation signal as the power supply, flushing control can be performed while eliminating the need for a signal line. Furthermore, by sharing the line, costs can be reduced. Furthermore, since the second control unit corresponds the solenoid valve operation signal to the control information, it is possible to provide combination patterns of control information without straining the capacity of the first control unit of the toilet seat device.

[0010] A third invention is a toilet system according to the second invention, characterized in that the power cut-off mode is a cut-off time during which the power supply is cut off, and the second control unit controls the opening and closing time of the solenoid valve based on the set flushing mode in accordance with the cut-off time.

[0011] According to this toilet system, the second control unit can change the opening and closing time of the solenoid valve depending on the time the power supply is cut off. This allows the second control unit to determine whether to switch flush modes, such as large flush or small flush, based on the time the power supply is cut off.

[0012] A fourth invention is a toilet system according to the second invention, characterized in that the power-cutting mode is a pulse number based on pulse control, and the second control unit controls the opening and closing time of the solenoid valve based on the set flushing mode in accordance with the pulse number.

[0013] According to this toilet system, the second control unit can change the opening and closing time of the solenoid valve according to the number of pulses of the power supply. This allows the second control unit to determine the switching of the flush mode, such as large flush or small flush, based on the number of pulses of the power supply. In addition, even if the power supply is cut off due to a temporary power outage, for example, the second control unit can be prevented from malfunctioning.

[0014] A fifth invention is a toilet system which, in any one of the first to fourth inventions, further comprises a human body detection unit which detects a user using the toilet, and the first control unit stops supplying power to the second control unit when the human body detection unit does not detect a user, and starts supplying power to the second control unit when the human body detection unit detects a user.

[0015] According to this toilet system, the second control unit can be prevented from consuming power constantly, so that power consumption during standby as the toilet system can be reduced. Effect of the Invention

[0016] According to an aspect of the present invention, a toilet system can be provided that can suppress pressure on the data capacity of a control unit on the toilet side. [Brief description of the drawings]

[0017] [Figure 1] 1 is a perspective view showing a toilet seat device and an electromagnetic valve device of a toilet system according to an embodiment of the present invention. [Diagram 2] 2 is a front view showing the inside of a case of the solenoid valve device in FIG. [Diagram 3] 1 is a block diagram showing a control system and a flush water flow path system of the toilet system. [Figure 4] 11 is a table showing an example of a plurality of flush water modes stored in a memory unit of the solenoid valve device. [Diagram 5] 4 is a time chart showing a state when a toilet is flushed. [Figure 6] 6 is a time chart showing a modified example of the power supply in FIG. 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, like components are designated by like reference numerals and detailed description thereof will be omitted as appropriate.

[0019] FIG. 1 is a perspective view showing a toilet seat device and a solenoid valve device of a toilet system according to an embodiment of the present invention. FIG. 2 is a front view showing the inside of a case of the solenoid valve device in FIG. FIG. 3 is a block diagram showing the control system and flush water flow path system of the toilet system. FIG. 4 is a table showing an example of a plurality of flush water modes stored in the memory section of the solenoid valve device.

[0020] As shown in Fig. 1, the toilet system 10 includes a toilet seat device 20 and a solenoid valve device 50. The toilet seat device 20 is installed in a seated toilet bowl (hereinafter, for convenience of explanation, simply referred to as "toilet bowl 100"). The toilet system 10 also includes a remote control 40 for operating a functional unit 25 of the toilet seat device 20.

[0021] The toilet 100 has a concave bowl portion that is recessed downward. The toilet 100 receives excrement such as urine and feces from the user in the bowl portion. The toilet seat apparatus 20 is placed, for example, on a portion of the toilet 100 that is rearward of the bowl portion. The toilet seat apparatus 20 may be attached integrally to the toilet 100, or may be attached detachably to the toilet 100.

[0022] The toilet seat device 20 has a functional part 25 and a first control part 29. The functional part 25 and the first control part 29 are provided inside a casing 21 of the toilet seat device 20. A toilet seat (not shown) and a toilet lid 23 are rotatably supported on the casing 21. The toilet seat is a part on which a user sits, and has an opening that exposes a bowl part. The user can excrete in the bowl part while sitting on the toilet seat. In FIG. 1, the toilet seat is covered with a toilet lid 23. The toilet lid 23 is provided in the toilet seat device 20 as necessary, and can be omitted. In this specification, "upper", "lower", "front", "rear", "left", and "right" are directions seen from a user sitting on the toilet seat with his / her back facing the open toilet lid 23.

[0023] The functional unit 25 is provided inside the casing 21. The toilet seat device 20 has a plurality of functional units 25. The functional units 25 are electrically operated devices provided inside the casing 21. The functional units 25 are, for example, a private parts washing function unit for washing and drying the private parts of the user, an opening / closing function unit for controlling the opening / closing operation of the toilet seat and the toilet lid 23, a toilet seat temperature function unit for controlling the temperature of the toilet seat, a deodorizing function unit for reducing odor components, a heating function unit for heating the toilet room, and a communication function unit capable of communicating with a remote control. These functional units are provided as necessary. In each figure, the functional units are omitted for the sake of convenience of explanation.

[0024] The toilet system 10 further includes a human body detection unit 27 that detects a user using the toilet bowl 100. The human body detection unit 27 is provided, for example, in the toilet seat device 20. The human body detection unit 27 is, for example, a seating detection sensor that detects a user sitting on the toilet seat, or an entry detection sensor that detects a user entering a toilet room in which the toilet bowl 100 and the toilet seat device 20 are installed.

[0025] The seating detection sensor may be, for example, a mechanical switch or an electrostatic sensor. The entrance detection sensor may be, for example, a pyroelectric sensor, an infrared sensor, or a radio wave sensor. The human body detection unit 27 may be provided, for example, on a wall surface of the toilet room or on a remote control 40 described later. That is, the human body detection unit 27 only needs to be able to detect a user around the toilet bowl 100. The human body detection unit 27 transmits the presence or absence of a user to the first control unit 29. The human body detection unit 27 may be only a seating detection sensor, only an entrance detection sensor, or both. The human body detection unit 27 is provided as necessary.

[0026] The first control unit 29 is connected to the functional unit 25 and the human body detection unit 27, and controls the operation of the functional unit 25. The first control unit 29 has a storage unit 29a. A control program for operating the functional unit 25 is stored in the storage unit 29a. In addition, a control program for controlling the power supply to a second control unit 54 of the solenoid valve device 50, which will be described later, is stored in the storage unit 29a. Note that the storage unit 29a may be provided separately from the first control unit 29.

[0027] The first control unit 29 is connected to a power source 200 (outlet) via a cable 30. When the first control unit 29 receives a command signal transmitted from a remote control 40 or a human body detection unit 27 described below, it operates the function unit 25 based on the command signal. Furthermore, when the first control unit 29 receives a flushing signal for flushing the toilet 100 from the remote control 40, it transmits a solenoid valve operation signal to the second control unit 54 of the solenoid valve device 50 based on the flushing signal. The solenoid valve operation signal will be described later.

[0028] The remote control 40 is provided on a wall of the toilet room, for example, as shown in Fig. 1. The remote control 40 is not limited to being provided on the wall of the toilet room, but may also be provided on a cabinet (not shown) provided on the side of the toilet bowl 100 or on the toilet seat device 20. The remote control 40 has, for example, a plurality of operation buttons 41, and receives operation instructions from the user. The operation buttons 41 have a large flush button 41a and a small flush button 41b that are operated to flush the toilet bowl 100.

[0029] The operation button 41 also has a button for activating the functional unit 25. The remote control 40 is connected to the toilet seat device 20 via a wired or wireless connection, and transmits a command signal to the toilet seat device 20 based on an operation instruction input by the user. The remote control 40 may have only the large flush button 41a and the small flush button 41b. In other words, the large flush button 41a and the small flush button 41b may be provided separately from the operation button for activating the functional unit 25 of the toilet seat device 20.

[0030] The solenoid valve device 50 supplies flush water to the toilet bowl 100. As shown in Fig. 1, the solenoid valve device 50 is located behind the toilet bowl 100 and is provided in a pipe 110 connected to a water supply source (e.g., a water supply). The solenoid valve device 50 has a solenoid valve 52 and a second control unit 54. The solenoid valve device 50 also has a setting switch 56 for setting the amount of flush water for the toilet bowl 100, and a capacitor 58 that can store and discharge electricity. The solenoid valve 52, the second control unit 54, the setting switch 56, and the capacitor 58 are provided inside a case 51 of the solenoid valve device 50.

[0031] The solenoid valve 52 operates between an open state, which allows flush water to flow into the toilet bowl 100, and a closed state, which blocks flush water from flowing into the toilet bowl 100. That is, the solenoid valve 52 switches from a closed state to an open state when flush water is caused to flow from the pipe 110 to the toilet bowl 100. The solenoid valve 52 also switches from an open state to a closed state when flush water flowing from the pipe 110 to the toilet bowl 100 is stopped. The solenoid valve 52 is connected to a second control unit 54, and opening and closing control is performed by the second control unit 54.

[0032] The second control unit 54 controls the operation (opening / closing control) of the solenoid valve 52. The second control unit 54 operates with power supplied from the first control unit 29 of the toilet seat device 20. That is, as shown in Figs. 1 and 3, the toilet system 10 has a cable 60 that connects between the toilet seat device 20 and the solenoid valve device 50. In other words, the second control unit 54 is supplied with power from the power source 200 via the first control unit 29.

[0033] This eliminates the need to prepare separate outlets for connecting the toilet seat device 20 and the solenoid valve device 50. Therefore, the toilet system 10 can be run with just one outlet in the toilet room.

[0034] The second control unit 54 has a memory unit 54a. The memory unit 54a stores a control program for operating the solenoid valve 52. The memory unit 54a also stores a number of flushing modes related to the supply of flush water to the toilet 100. Specifically, as shown in FIG. 4, the multiple flushing modes (four in this example) are combinations of open operation times of the solenoid valve 52 for a large flush when defecation has occurred and a small flush when urination has occurred.

[0035] The flushing modes correspond to various types of toilets 100. The appropriate amount of flushing water varies for each toilet 100, for example, depending on the size and shape. Therefore, by having a plurality of flushing modes, the solenoid valve device 50 can be used regardless of the type of toilet 100 used. This makes the solenoid valve device 50 highly versatile. Note that the memory unit 54a may be provided separately from the second control unit 54. Furthermore, the flushing water mode is not limited to large flushing and small flushing, and other settings related to the flushing water supply may be used, such as setting an automatic flush depending on the presence or absence of human body detection and adjusting the amount of sealed water in the toilet 100.

[0036] The plurality of flushing modes are stored in the storage unit 54a of the solenoid valve device 50, not in the storage unit 29a of the toilet seat device 20. This makes it possible to prevent the data capacity of the storage unit 29a of the toilet seat device 20 from being overloaded. As a result, the toilet system 10 can efficiently write programs for new functions, etc., to the storage unit 29a.

[0037] Setting switch 56 is for setting one flush water mode from multiple flush water modes stored in memory unit 54a. As shown in Fig. 2, setting switch 56 is, for example, a rotary switch or a dip switch, and is provided inside case 51. The installer who installs toilet 100 sets the flush water mode that corresponds to toilet 100 using setting switch 56. Second control unit 54 controls the operation of solenoid valve 52 based on the flush water mode that has been set.

[0038] Capacitor 58 is connected to second control unit 54, and stores a portion of the power supplied from first control unit 29 to second control unit 54. Capacitor 58 also discharges the stored power toward second control unit 54. The power stored in capacitor 58 is used to operate second control unit 54 and solenoid valve 52.

[0039] The toilet system 10 according to the embodiment has the configuration described above. Next, the operation of the toilet system 10 will be described. Figure 5 is a time chart showing the state when the toilet is flushed. Note that in the time chart shown in Figure 5, for the convenience of explaining the time for which the power supply is shut off between the large flush and the small flush, the time interval is not constant. For example, in Figure 5, the length of time from time t1 to time t2 is longer than the length of time from time t3 to time t4. However, in actuality, the time interval from time t1 to time t2 is much shorter than the time from time t3 to time t4.

[0040] The first control unit 29 uses the human body detection unit 27 (entry detection sensor and seating detection sensor) to monitor whether or not a user is present using the toilet 100. The first control unit 29 controls the power supply to the second control unit 54 of the solenoid valve device 50 depending on the presence or absence of a user of the toilet 100.

[0041] That is, when the human body detection unit 27 does not detect a user, the first control unit 29 stops the power supply to the second control unit of the solenoid valve device 50. When the human body detection unit 27 detects a user, the first control unit 29 executes the power supply to the second control unit 54 of the solenoid valve device 50. This allows the toilet system 10 to reduce power consumption. While the human body detection unit 27 is detecting a user, 24V power is supplied from the first control unit 29 to the second control unit 54.

[0042] Then, at time t1, the user operates the large flush button 41a of the remote control 40. The remote control 40 transmits a large flush command signal to the toilet seat device 20. Upon receiving the large flush command signal, the first control unit 29 of the toilet seat device 20 cuts off the power supplied to the second control unit 54 (for example, from 24 V to 0 V) ​​for a first cut-off time. The first cut-off time corresponds to the large flush command signal, and is stored in advance in the memory unit 29a of the first control unit 29. The first cut-off time is, for example, an arbitrary value between 0.3 seconds and 0.6 seconds (for example, 0.3 seconds).

[0043] At time t2, the first control unit 29 resumes the power supply to the second control unit 54 (from 0 V to 24 V). That is, the first control unit 29 supplies power to the second control unit 54 after the first cutoff time (from time t1 to t2) has elapsed.

[0044] The second control unit 54 monitors the power supply from the first control unit 29. A first threshold value corresponding to the first cut-off time is stored in advance in a storage unit 54a of the second control unit 54. The first threshold value may be the same as the first cut-off time, or may be a time interval including the first cut-off time. For example, if the first cut-off time is 0.3 seconds, the first threshold value may be set to 0.25 seconds to 0.4 seconds. The second control unit 54 can detect the first cut-off time by detecting that the first cut-off time is within the first threshold value, even if the first cut-off time deviates slightly due to noise or the like.

[0045] The second control unit 54 detects the solenoid valve operation signal based on the cut-off time during which the power supply is cut off. The solenoid valve operation signal has a first cut-off time corresponding to a large flush and a second cut-off time corresponding to a small flush. The second cut-off time is, for example, shorter than the first cut-off time.

[0046] In this way, the second control unit 54 determines whether or not the solenoid valve operation signal is generated by cutting off the power supply. This allows the toilet system 10 to transmit the operation signal for the solenoid valve 52 only through the cable 60 that supplies power from the first control unit 29 to the second control unit 54. This eliminates the need to provide a dedicated communication line in addition to the cable 60, thereby reducing costs.

[0047] When the second control unit 54 recognizes that the power has been cut off for the first cut-off time, it operates the solenoid valve 52 from the closed state to the open state. In this case, the second control unit 54 opens the solenoid valve 52 based on the flush mode set by the setting switch 56. For example, when flush mode 1 shown in Figure 4 is set, the solenoid valve 52 is opened for 2.0 seconds (large flush time). This opens the pipe 110, allowing flush water to flow into the toilet 100.

[0048] At time t3, the solenoid valve 52 switches from the open state to the closed state. That is, the second control unit 54 operates the solenoid valve 52 from the open state to the closed state after, for example, 2.0 seconds, which is the large-flush time in flush mode 1, has elapsed. This blocks the pipe 110, and the flush water flowing into the toilet 100 stops.

[0049] At time t4, the human body detection is switched from ON to OFF. That is, the human body detection unit 27 detects "no user" when the user gets up from the toilet seat or leaves the toilet room. When the human body detection unit 27 detects "no user", the first control unit 29 stops the power supply to the second control unit 54. This puts the second control unit 54 into a standby state. Therefore, the toilet system 10 can reduce power consumption.

[0050] At time t5, the human body detection is switched from OFF to ON. That is, the human body detection unit 27 detects "user presence" when the next user enters the toilet room or sits on the toilet seat. The first control unit 29 starts supplying power to the second control unit 54 when the human body detection unit 27 detects "user presence".

[0051] At time t6, the user operates the small flush button 41b on the remote control 40. The remote control 40 transmits a small flush command signal to the toilet seat device 20. Upon receiving the small flush command signal, the first control unit 29 of the toilet seat device 20 cuts off the power supplied to the second control unit 54 (e.g., from 24 V to 0 V) ​​for a second cut-off time. The second cut-off time corresponds to the small flush command signal, and is stored in advance in the memory unit 29a of the first control unit 29. The second cut-off time is shorter than the first cut-off time corresponding to the large flush command signal, and is, for example, an arbitrary value between 0.1 seconds and 0.4 seconds (e.g., 0.1 seconds).

[0052] At time t7, the first control unit 29 resumes the power supply to the second control unit 54 (from 0 V to 24 V). That is, the first control unit 29 supplies power to the second control unit 54 after the second cutoff time (from time t6 to t7) has elapsed.

[0053] The second control unit 54 monitors the power supply from the first control unit 29. A second threshold value corresponding to the second cut-off time is stored in advance in the memory unit 54a of the second control unit 54. The second threshold value may be the same as the second cut-off time, or may be a time interval including the second cut-off time. However, the time interval of the second threshold value is set so as not to overlap with the time interval of the first threshold value. For example, if the second cut-off time is 0.1 seconds, the second threshold value can be set to 0.05 seconds to 0.2 seconds. The second control unit 54 can detect the second cut-off time by detecting that the second cut-off time is within the second threshold value, even if the second cut-off time is slightly deviated due to noise or the like.

[0054] When the second control unit 54 recognizes that the power has been cut off for the second cut-off time, it operates the solenoid valve 52 from the closed state to the open state. In this case, the second control unit 54 opens the solenoid valve 52 based on the flush mode set by the setting switch 56. For example, when flush mode 1 shown in Figure 4 is set, the solenoid valve 52 is opened for 1.0 second (short flush time). This opens the pipe 110, allowing flush water to flow into the toilet 100.

[0055] At time t8, solenoid valve 52 switches from the open state to the closed state. That is, second control unit 54 operates solenoid valve 52 from the open state to the closed state after, for example, 1.0 second, which is the short flush time of flush mode 1, has elapsed. This blocks conduit 110 and stops the flush water flowing into the toilet bowl 100.

[0056] At time t9, the human body detection is switched from ON to OFF. That is, the human body detection unit 27 detects "no user" when the user gets up from the toilet seat or leaves the toilet room. When the human body detection unit 27 detects "no user", the first control unit 29 stops the power supply to the second control unit 54. This puts the second control unit 54 into a standby state. Therefore, the toilet system 10 can reduce power consumption.

[0057] According to the toilet system 10 of this embodiment, the second control unit 54 of the solenoid valve device 50 controls the operation of the solenoid valve 52 by operating on power supplied from the first control unit 29 of the toilet seat device 20. The second control unit 54 has a memory unit 54a in which a plurality of flushing modes related to the supply of flush water to the toilet bowl 100 are stored.

[0058] Since the second control unit 54 is supplied with power from the first control unit 29, there is no need to prepare separate outlets for connecting the toilet seat device 20 and the solenoid valve device 50. Therefore, the toilet system 10 can be operated with just one outlet in the toilet room.

[0059] Furthermore, the memory unit 54a of the second control unit 54 stores a plurality of flushing modes related to the supply of flush water to the toilet 100. This allows the solenoid valve device 50 to be used with a plurality of toilets 100 of different sizes and shapes. Therefore, the solenoid valve device 50 is highly versatile.

[0060] The flushing mode is stored in the memory unit 54a of the solenoid valve device 50. This allows the memory unit 29a of the first control unit 29 of the toilet seat device 20 to have a sufficient capacity. As a result, the toilet system 10 can efficiently write programs for new functions, etc., into the memory unit 29a.

[0061] The second control unit 54 detects a solenoid valve operation signal for operating the solenoid valve 52 based on the power cut-off mode of the power supplied from the first control unit 29. Specifically, the power cut-off mode is the cut-off time during which the power supply is cut off. The second control unit 54 controls the opening and closing time of the solenoid valve 52 based on the set cleaning mode according to the cut-off time.

[0062] The cut-off time during which the power supply is cut off includes a first cut-off time corresponding to a large flush and a second cut-off time corresponding to a small flush. The first cut-off time and the second cut-off time have different time lengths (elapsed times). The second control unit 54 controls the open time of the solenoid valve 52 based on the elapsed time since the power was cut off. This eliminates the need for a communication line from the first control unit 29 to the second control unit 54, thereby reducing costs.

[0063] Furthermore, when the human body detection unit 27 does not detect a user, the first control unit 29 stops the power supply to the second control unit 54. When the human body detection unit 27 detects a user, the first control unit 29 executes the power supply to the second control unit 54. This allows the toilet system 10 to reduce power consumption.

[0064] FIG. 6 is a time chart showing a modification of the power supply in FIG. In the above embodiment, the power cut-off mode is the cut-off time during which the power supply is cut off. However, the present invention is not limited to this. For example, as in a modified example shown in Fig. 6, the power cut-off mode may be the number of pulses based on pulse control. The second control unit 54 controls the opening and closing time of the solenoid valve 52 based on the set cleaning mode according to the number of pulses.

[0065] When the large flush button 41a or small flush button 41b of the remote control 40 is operated, the first control unit 29 successively cuts off and supplies power to the second control unit 54. In this case, the pulse width is, for example, 1 to 100 msec. The number of pulses is, for example, 2 or more, and is a different value for large flush and small flush. The number of pulses corresponding to the large flush and small flush are stored in the memory unit 29a of the first control unit 29.

[0066] The first control unit 29 executes pulse control with the number of pulses stored in the memory unit 29a, based on the large flush command signal or small flush command signal transmitted from the remote control 40. As shown in Fig. 6, when the second control unit 54 detects a pulse number of "3", for example, it determines that a large flush is being performed. On the other hand, when the second control unit 54 detects a pulse number of "2", for example, it determines that a small flush is being performed.

[0067] This makes it possible to prevent the second control unit 54 from malfunctioning the solenoid valve 52 even if the power supply from the first control unit 29 to the second control unit 54 is cut off due to, for example, a temporary power outage.

[0068] In the above embodiment, the power supply from the first control unit 29 to the second control unit 54 is performed depending on whether or not the human body is detected by the human body detection unit 27. However, the present invention is not limited to this aspect, and for example, the first control unit 29 may always supply power to the second control unit 54 regardless of whether or not the human body detection unit 27 detects a human body. In such a case, the operational response of the second control unit 54 can be made faster.

[0069] The embodiment may include the following features. (Configuration 1) A toilet seat device installed in a toilet bowl; a solenoid valve device for supplying flush water to the toilet bowl; Equipped with The toilet seat device has a functional unit and a first control unit that controls the functional unit, The solenoid valve device is an electromagnetic valve that opens and closes between an open state that allows the flush water to flow into the toilet bowl and a closed state that blocks the flush water from flowing into the toilet bowl; A second control unit that operates with power supplied from the first control unit to control the operation of the solenoid valve, A toilet system, wherein the second control unit has a memory unit in which a plurality of flush modes relating to the supply of flush water to the toilet bowl are stored. (Configuration 2) The toilet system of configuration 1, characterized in that the second control unit detects a solenoid valve operation signal for operating the solenoid valve based on the power cut-off state of the power supplied from the first control unit. (Configuration 3) The power cut-off mode is a cut-off time during which the power supply is cut off, The toilet system according to configuration 2, wherein the second control unit controls an opening and closing time of the solenoid valve based on the set flushing mode in accordance with the shutoff time. (Configuration 4) The power cut-off mode is a pulse number based on pulse control, The toilet system according to configuration 2, wherein the second control unit controls the opening and closing time of the solenoid valve based on the set flushing mode in accordance with the number of pulses. (Configuration 5) A human body detection unit that detects a user using the toilet bowl is further provided, The first control unit is When the human body detection unit does not detect a user, the power supply to the second control unit is stopped. 5. The toilet system according to any one of configurations 1 to 4, wherein when the human body detection section detects a user, power supply to the second control section is executed.

[0070] The above describes the embodiments of the present invention. However, the present invention is not limited to these descriptions. Regarding the above-mentioned embodiments, those in which a person skilled in the art makes appropriate design changes are also included in the scope of the present invention as long as they include the features of the present invention. For example, the shape, dimensions, materials, arrangement, etc. of each element of the toilet system are not limited to those exemplified and can be appropriately changed. In addition, each element of each of the above-mentioned embodiments can be combined to the extent technically possible, and combinations of these are also included in the scope of the present invention as long as they include the features of the present invention. [Explanation of symbols]

[0071] 10. Toilet System 20 Toilet seat device 21 Casing 22 Toilet seat 23 Toilet lid 25 Functional Section 27 Human body detection unit 29 First Control Section 29a Storage section 30 Cable 40 Remote Control 41 Operation buttons 41a Large cleaning button 41b Small wash button 50 Solenoid valve device 51 cases 52 Solenoid valve 54 Second Control Section 54a Storage section 56 Setting switch 58 Capacitor 60 Cable 100 Toilet 110 Pipeline 200 power supply

Claims

1. A toilet seat device installed in a toilet bowl; a solenoid valve device for supplying flush water to the toilet bowl; Equipped with The toilet seat device has a functional unit and a first control unit that controls the functional unit, The solenoid valve device is an electromagnetic valve that opens and closes between an open state that allows the flush water to flow into the toilet bowl and a closed state that blocks the flush water from flowing into the toilet bowl; A second control unit that operates using the power supplied from the first control unit to control the operation of the solenoid valve, A toilet system, wherein the second control unit has a memory unit in which a plurality of flushing modes relating to the supply of flush water to the toilet bowl are stored.

2. The toilet system according to claim 1, characterized in that the second control unit detects a solenoid valve operation signal for operating the solenoid valve based on a power cut-off state of the power supplied from the first control unit.

3. The power cut-off mode is a cut-off time during which the power supply is cut off, The toilet system according to claim 2 , wherein the second control unit controls an opening and closing time of the solenoid valve based on the set flushing mode in accordance with the shutoff time.

4. The power cut-off mode is a pulse number based on pulse control, The toilet system according to claim 2 , wherein the second control unit controls an opening and closing time of the solenoid valve based on the set flushing mode in accordance with the number of pulses.

5. A human body detection unit that detects a user using the toilet bowl is further provided, The first control unit is When the human body detection unit does not detect a user, the power supply to the second control unit is stopped. The toilet system according to any one of claims 1 to 4, characterized in that, when the human body detection unit detects a user, power supply to the second control unit is executed.

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