Control device, toilet device, and toilet

JP2025032025A5Active Publication Date: 2025-06-02LIXIL CORP
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Patent Information

Application Number
JP2024232833
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-06-02
Estimated Expiration
2041-09-24

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Abstract

To provide a control device, a toilet bowl device, and a toilet that can prevent an effect of a toilet-bowl cleaner from being diminished when the toilet bowl device is used after the toilet-bowl cleaner is applied.SOLUTION: A control device detects a toilet-bowl cleaner application time. The control device instructs a toilet bowl device to apply the toilet-bowl cleaner into the toilet bowl at the toilet-bowl cleaner application time, and instructs the toilet bowl device to apply the toilet-bowl cleaner when the toilet bowl is flushed during a period from the toilet-bowl cleaner application time until an application period is elapsed.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present disclosure relates to a control device for controlling flushing of a toilet bowl, a toilet bowl apparatus, and a toilet. [Background technology]

[0002] In order to flush the toilet, chemicals are injected into the toilet. A related technique is disclosed in Patent Document 1. Patent Document 1 discloses a technique for supplying a predetermined amount of sterilizing water to a target area after a scheduled time has elapsed or at a scheduled time. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-088640 Summary of the Invention [Problem to be solved by the invention]

[0004] When a chemical is dispensed into a toilet device as described above, if a user uses the toilet device after dispensing the chemical, the chemical will be washed away by the flushing water, reducing the effectiveness of the chemical for cleaning the toilet.

[0005] Therefore, an object of this disclosure is to provide a control device, a toilet device, and a toilet that can prevent the effectiveness of the medicine from being weakened when the toilet device is used after the medicine has been dispensed. [Means for solving the problem]

[0006] According to one aspect of the present disclosure, the control device includes a time management unit that detects the time when a drug is injected, and a drug management unit that instructs the toilet device to inject a drug into the toilet bowl at the drug injection time, and instructs the toilet device to inject the drug when the toilet bowl is flushed between the drug injection time and the elapse of an injection period. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a diagram showing a toilet bowl device provided in a toilet of the present disclosure. [Diagram 2] 1 is a schematic diagram of the internal configuration of a toilet apparatus according to the present disclosure; [Diagram 3] FIG. 2 is a diagram illustrating a hardware configuration of a control device according to the present disclosure. [Figure 4] FIG. 2 is a functional block diagram of a control device according to the present disclosure. [Diagram 5] FIG. 2 is a first diagram showing a processing flow of the control device of the present disclosure. [Figure 6] FIG. 13 is a second diagram showing the processing flow of the control device of the present disclosure. [Figure 7] FIG. 11 is a third diagram showing the processing flow of the control device of the present disclosure. [Figure 8] FIG. 1 is a first diagram showing an example of display information of the present disclosure. [Figure 9] FIG. 2 is a second diagram showing an example of display information of the present disclosure. [Figure 10] FIG. 4 is a fourth diagram showing the processing flow of the control device of the present disclosure. [Figure 11] FIG. 5 is a fifth diagram showing the processing flow of the control device of the present disclosure. [Figure 12] FIG. 2 is a diagram illustrating a minimum configuration of a control device according to the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] As shown in FIG. 1, the toilet device 1 is provided in a toilet 100. The toilet device 1 includes at least a toilet body 2, a toilet seat box 4, a toilet cover 5, and a toilet seat 6. The toilet seat box 4 is installed on the upper side of the toilet body 2. The toilet seat box 4 is provided with a control device 10. The control device 10 communicates with a remote control device 8. The control device 10 controls each function of the toilet device 1 according to a signal from the remote control device 8. Each function of the toilet device 1 may be controlled based on the internal control process of the control device 10. As an example, the control device 10 controls a flushing unit 20 that flushes the toilet bowl by flushing water inside the toilet bowl. As shown in FIG. 2, the control device 10 of the toilet device 1 controls a chemical dispenser 30 to dispense a chemical M into the surface of the water stored inside the toilet bowl (hereinafter referred to as the water surface L). The remote control device 8 is one aspect of an operating device. The control device 10 may be communicatively connected to an operating device other than the remote control device 8, and control each function of the toilet device 1 according to a signal from that operating device.

[0009] The computer of the control device 10 includes hardware such as a central processing unit (CPU) 101, a read only memory (ROM) 102, a random access memory (RAM) 103, a hard disk drive (HDD) 104, and a communication module 105, as shown in FIG.

[0010] The CPU 101 of the control device 10 executes a control program stored in the control device 10 in advance. This causes the control device 10 to fulfill the functions of the control unit 11, acquisition unit 12, reference time determination unit 13, time management unit 14, drug management unit 15, and cleaning management unit 16 (FIG. 4). The control unit 11 controls each functional unit of the control device 10. The acquisition unit 12 acquires information from an external device. The reference time determination unit 13 determines a reference time for detecting the drug injection time for injecting a drug into the toilet bowl, which is the inside of the toilet bowl. The time management unit 14 detects the drug injection time. The drug management unit 15 instructs the toilet device 1 to inject a drug into the toilet bowl at the drug injection time, and instructs the toilet device to inject the drug when the toilet bowl is flushed during the injection period from the drug injection time. When the cleaning management unit 16 acquires a flush signal, it instructs the toilet device 1 to flush the toilet bowl with flush water.

[0011] The control device 10 of the present disclosure controls the injection of a chemical into the toilet bowl based on the chemical injection time. As an example, this chemical is a chemical that disinfects and sterilizes mold that adheres to the intersection line A between the water pool L inside the toilet bowl and the toilet bowl inner surface. The water pool inside the toilet bowl evaporates over time, or decreases as some water flows into the drain, causing the water pool L to drop. As the water pool L drops, mold may grow on the toilet bowl inner surface due to the influence of moisture remaining on the toilet bowl inner surface between the water pool L before the drop and the water pool L after the drop. The control device 10 of the present disclosure injects a chemical to disinfect and sterilize the growth of mold and the like on the water pool L.

[0012] As an example, the control device 10 detects the time of drug injection and instructs the drug injection unit 30 to inject the drug into the toilet bowl at the drug injection time. The control device 10 determines whether the toilet has been flushed within a predetermined injection period based on the drug injection time. In this disclosure, the predetermined injection period is six hours, but the injection period may be six hours or more or less than six hours. The predetermined injection period may be any length of time as long as the injection of the drug can prevent the occurrence of mold, etc. on the water reservoir surface L by sterilization and disinfection. If the toilet device 1 is used within the injection period and the inside of the toilet bowl is washed with flushing water, the control device 10 determines to inject the drug again. Through such processing, the control device 10 controls the vicinity of the intersection line A between the water reservoir surface L and the toilet bowl inner surface to be covered with the drug for the predetermined injection period, so that the effective time for disinfecting and disinfecting mold is not reduced. The control device 10 can ensure the predetermined injection period for disinfecting and disinfecting the inside of the toilet bowl due to the occurrence of mold, etc. on the water reservoir surface.

[0013] First embodiment The process of the control device 10 of the first embodiment will be described. The control device 10 in the first embodiment stores a reference time in a storage unit such as the HDD 104. The reference time may be a time set by the user using the remote control device 8, acquired by the acquisition unit 12, and recorded in the storage unit. Alternatively, the reference time may be a time previously stored in the storage unit. The reference time determination unit 13 determines a regulated time as the reference time (step 100). Alternatively, the reference time may be a time automatically set by the reference time determination unit 13 based on a predetermined reference time determination process. As an example, the reference time is 0:00 a.m. As shown in FIG. 5, the reference time determination unit 13 performs a reference time determination process to determine the reference time and record the reference time in the storage unit (step S100). Details of this process example will be shown in the third embodiment.

[0014] The time management unit 14 acquires the current time from a clock function unit provided inside the control device 10 (step S101). The time management unit 14 compares the acquired current time with a reference time, which is the time when the medicine is scheduled to be injected, and determines whether they match (step S102). If the current time matches the reference time, the time management unit 14 detects that it is time to inject the medicine (step S103). This process is an example of a process mode in which the time management unit 14 detects the medicine injection time based on the reference time. The time management unit 14 notifies the medicine management unit 15 of the detection of the medicine injection time. The medicine management unit 15 instructs the medicine injection unit 30 to inject the medicine (step S104). The medicine injection unit 30 injects the medicine. If the time does not match the reference time, the time management unit 14 determines whether the time exceeds the reference time (step S105). If the time management unit 14 determines that the time has passed the reference time, the medicine management unit 15 instructs the medicine input unit 30 to input the medicine, similar to step S104 described above. The medicine input unit 30 inputs the medicine. If the time management unit 14 determines that the time has not passed the reference time, the control unit 11 sets the end flag to OFF (step S115). The control unit 11 determines whether the end flag is set to ON (step S120), and if the end flag is not set to ON, obtains the current time, similar to step S101.

[0015] The chemical agent in the present disclosure is a chemical agent that forms a layer of foam on the water surface L inside the toilet bowl so as to cover the water surface L inside the toilet bowl. The chemical agent injection unit 30 may inject the chemical agent itself into the toilet bowl, or may inject the chemical agent by dissolving the chemical agent in the flushing water that washes the inside of the toilet bowl. Any method of injecting the chemical agent or any mechanism of the toilet device 1 for injecting the chemical agent may be used. In response to an instruction to inject the chemical agent from the chemical agent management unit 15, the chemical agent injection unit 30 may, for example, control the opening of a chemical agent tank in which the chemical agent is stored to open, or control a pump that injects the chemical agent in the tank. When the chemical agent management unit 15 detects the completion of the injection of the chemical agent by a completion signal or the like acquired from the chemical agent injection unit 30, it notifies the cleaning management unit 16 of the time when the chemical agent is injected. After receiving the notification of the time when the chemical agent is injected, the cleaning management unit 16 waits for the acquisition of a flushing signal, and determines whether or not the flushing signal has been acquired (step S106).

[0016] The drug management unit 15 measures the time elapsed from the drug input time, and while not receiving a cleaning signal, determines whether the time elapsed from the drug input time has exceeded the input period of 6 hours (step S107). As described above, the input period is 6 hours as an example in this disclosure. Therefore, when the reference time is 0:00 a.m., the expiration time of the drug input period is 6:00 a.m. If the drug management unit 15 determines that the time elapsed from the drug input time has exceeded the input period of 6 hours, the control unit 11 sets the end flag to ON (step S116). The process proceeds to step S120. If the drug management unit 15 does not determine that the time elapsed from the drug input time has exceeded the input period of 6 hours, the process repeats steps S106 and S107. The measurement of the time elapsed from the drug input time by the drug management unit 15 may be performed by measuring the time elapsed from the detection of the drug input time in step S103 as the starting point, or may be performed by measuring the time elapsed from the instruction time of drug input in step S104 as the starting point.

[0017] When the user uses the toilet device 1, the drug management unit 15 and the cleaning management unit 16 acquire a flushing signal transmitted from the remote control function unit 81 of the remote control device 8 and received by the communication module 105. This causes the cleaning management unit 16 to determine that the flushing signal has been acquired (Yes in step S106). When the cleaning management unit 16 acquires the flushing signal, it instructs the cleaning unit 20 to flush the toilet bowl (step S108). Based on this instruction, the cleaning unit 20 flushes the flushing water. When the drug management unit 15 acquires the flushing signal, it determines whether the time elapsed from the time when the drug was dispensed has exceeded the six-hour supply period (step S109). The drug management unit 15 may be configured to determine whether the time elapsed from the time when the instruction to flush the flushing water was issued has exceeded the six-hour supply period. If the drug management unit 15 determines in step S109 that the time elapsed from the time when the drug was dispensed (or the time when the instruction to flush the flushing water was issued) has exceeded the six-hour supply period, the control unit 11 sets the end flag to ON (step S116). The process proceeds to step S120. The control unit 11 determines whether the end flag is set to ON (step S120), and if Yes, ends the process. If No, repeats the process from step S101. If the medicine management unit 15 determines in step S109 that the time elapsed since the medicine injection time has not exceeded the injection period of 6 hours, the medicine management unit 15 determines to inject (re-inject) medicine (step S110). The medicine management unit 15 returns to the process of step S104 and instructs the medicine injection unit 30 to inject medicine. The medicine injection unit 30 injects the medicine.

[0018] Through the above process, the control device 10 issues a command to re-inject the chemical if the chemical flows together with the flush water before the six-hour chemical injection period has elapsed after injection. The chemical injection unit 30 then re-injects the chemical. As a result, the chemical will be injected repeatedly even if the toilet is flushed before the specified injection period has elapsed since injection. Therefore, the toilet device 1 of the present disclosure keeps the chemical on the water surface L for the specified injection period that is effective for sterilization, and the chemical can be attached to the water surface L until the six-hour injection period has elapsed since the initial injection of the chemical, without the chemical losing its effectiveness, thereby removing and sterilizing mold.

[0019] Second Embodiment The process of the second embodiment will be described with reference to FIG. 6. The medicine management unit 15 may determine not to reintroduce medicine when the remaining time, which is obtained by subtracting the elapsed time from the first medicine input time (or the time when the instruction to turn on the washing water is given) to the time when it is determined that the medicine should be reintroduced from the input period of 6 hours, is less than a predetermined time, such as less than 1 hour. For example, even if the medicine is input at midnight and the washing signal is acquired at 5:30 a.m., the medicine management unit 15 has 30 minutes remaining until 6 a.m., which is less than 1 hour. In such a case, the medicine management unit 15 determines whether the remaining time is less than 1 hour (step S111). If the remaining time is less than a predetermined time, such as less than 1 hour, the medicine management unit 15 determines not to reintroduce medicine (step S112). If the medicine management unit 15 determines that the remaining time is not less than a predetermined time, such as less than 1 hour, the process proceeds to step S104 and instructs to input medicine. This makes it possible to stop unnecessary use of medicine just before the end of the input period. This process is one aspect of the process in which the drug management unit 15 determines whether or not to reinject a drug based on the relationship between the drug injection time and the drug injection completion time specified based on the injection period. This process is also one aspect of the process in which the drug management unit 15 restricts the injection of a drug when the difference between the elapsed period from the drug injection time and the injection period based on the drug injection time is less than a threshold value.

[0020] In the above-mentioned processing of steps S107 and S109, the drug management unit 15 determines whether the time elapsed from the time the drug was dispensed (or the time an instruction to flush was given) has exceeded the six-hour dispense period. The drug management unit 15 may calculate the dispense completion time of 6 a.m. based on the six hours that have elapsed since the drug was dispensed at midnight, and determine whether 6 a.m. has passed. If the toilet apparatus 1 is used again before 6 a.m. is passed, the drug management unit 15 may determine that the drug will be re-dispensed. In this case as well, if the time remaining until 6 a.m. is less than a predetermined time, such as less than one hour, the drug management unit 15 may determine that the drug will not be re-dispensed.

[0021] The control unit 11 repeats the above-mentioned process from step S101 every day based on the reference time stored in the storage unit. The control unit 11 may repeat the above-mentioned process from step S101 every unit period such as one week based on the reference time stored in the storage unit. When performing the process from step S101, the control unit 11 may calculate the drug input period from the last drug input time to the time determined to be the end of the process, and determine whether the input period has reached the predetermined drug input period of six hours. If the drug input period from the last drug input time to the time determined to be the end of the process has not reached six hours, the control unit 11 may transmit display information to a predetermined device to indicate that the drug input period has not reached the predetermined six hours.

[0022] If the drug supply period does not reach 6 hours, a sufficient sterilization and disinfection effect may not be obtained. In such a case, output information indicating that the drug supply period has not reached the specified 6 hours is transmitted to a specified device, and the device displays the output information on a display or the like, so that the user can recognize that a sufficient sterilization and disinfection effect has not been obtained. When the control unit 11 transmits output information indicating that the drug supply period has not reached the specified 6 hours to a treatment device, the device may turn on an LED lamp that notifies the user based on the output information. By turning on the LED lamp, the user is notified that the drug supply period has not reached the specified 6 hours, and the user can recognize that a sufficient sterilization and disinfection effect has not been obtained. The output destination of the output information may be the remote control device 8, or may be a specified cloud server, terminal device, or the like. The output information may be used for processing such as improving the processing of the control device 10, changing the reference time, and changing the specified drug supply period.

[0023] Third embodiment The third embodiment is an embodiment showing details of the reference time determination process described in the first embodiment. The reference time determination unit 13 may acquire usage history data of the toilet device 1, detect a time period when usage is infrequent based on the usage history data, and determine a reference time that ensures a six-hour drug input period.

[0024] In this case, as shown in FIG. 7, the reference time determination unit 13 acquires a cleaning signal transmitted from the remote control device 8 or the like via the control unit 11 every time (step S201). The reference time determination unit 13 records the time when the cleaning signal is acquired in the storage unit (step S202). The reference time determination unit 13 performs statistical processing based on the time when the cleaning signal is acquired, and identifies a time when the number of times the cleaning signal is acquired is less than a threshold (step S203). The number of times may be the average number of times the cleaning signal is acquired per hour on each day of a month. The reference time determination unit 13 identifies, for example, the longest time in a low-use frequency period in which the average number of times the cleaning signal is acquired is less than a threshold (step S204). The reference time determination unit 13 determines whether the longest time in a low-use frequency period in which the average number of consecutive acquisitions is less than a threshold is 6 hours or more (step S205). If the longest time in the low-use frequency period is 6 hours or more, the reference time determination unit 13 sets a 6-hour input period in the identified time (step S206). When the longest time of the low frequency of use period is less than 6 hours, the reference time determination unit 13 sets the input period to 6 hours, which is the specified time plus additional time that reaches 6 hours before and after the specified time (step S207). The reference time determination unit 13 determines the first time of the set input period as the reference time (step S208). The reference time determination unit 13 records the reference time in the storage unit (step S209). The above process shows the reference time determination process described in step S100 of the first embodiment. In step S206, the reference time determination unit 13 specifies, for example, 2:00 a.m. to 8:00 a.m. as the 6-hour drug input period. At this time, the reference time determination unit 13 may determine the first time, 2:00 a.m., as the reference time. Alternatively, the reference time determination unit 13 may determine a 6-hour input period (T) in the low frequency of use period from 11:00 p.m. to 6:00 a.m. the next day, as shown in FIG. 8. For example, the reference time determination unit 13 may set the first six hours (11pm to 5am) of the seven-hour period of low usage frequency from 11pm to 6am the following day as the input period (T) as shown in Figure 8, and determine that the first time, 11pm, is the reference time.

[0025] The reference time determination unit 13 calculates the two hours that are missing from the on-time period based on the four hours from 2:00 to 6:00 in the time period in which the average number of times the cleaning signal is acquired is less than the threshold, and calculates midnight, which is two hours earlier than the first time of the time period in which the average number of times the cleaning signal is acquired is less than the threshold. The reference time determination unit 13 may determine midnight as the reference time. After calculating the two hours that are missing from the on-time period, the reference time determination unit 13 may calculate 8:00 in the time period in which the average number of times the cleaning signal is acquired is less than the threshold, and determine 8:00 in the time period as the reference time. In other words, the reference time determination unit 13 may determine the first time of a period in which six hours can be secured, which is a predetermined period including the time period in which statistics such as the average number of times the cleaning signal is acquired are less than the threshold and the low-use frequency period before and after the time period, in which the frequency of use is low, as the reference time. In FIG. 9, the on-time period is set by adding the four hours from 13:00 to 16:00, which is the longest of the low-use frequency periods from 23:00 to 3:00, 9:00 to 11:00, and 13:00 to 16:00, and the two hours before or after the period. For example, the longest time in the low usage period, 13:00-16:00, plus the previous two hours, 11:00-13:00, may be set as the input period (T), which is six hours, and the first time of the input period, 11:00, may be determined as the reference time. This process is one aspect of the process in which the reference time determination unit 13 determines, based on the daily usage history of the toilet, a time included in the low usage period, in which the toilet is least frequently used within a day, as the reference time. The reference time determination unit 13 may determine the reference time in any way based on the usage history data. The reference time determination unit 13 may determine the reference time such that at least a portion of the input period is included in the low usage period.

[0026] The reference time determination unit 13 may use the usage history data, such as the number of times the flush signal is acquired per hour, and machine learning to determine the reference time for setting the six-hour drug supply period including the time period when the usage frequency is low. For example, the reference time determination unit 13 stores a learning model generated by machine learning the relationship between the usage history data indicating the number of times the flush signal is acquired per hour in a day and the correct answer data of the reference time indicating the first time of the six-hour recommended drug supply period for that usage history data. The machine learning may be performed by another computer device such as a cloud server. The control device 10 stores the learning model. When determining the reference time, the reference time determination unit 13 acquires the usage history data of the location where the toilet device 1 is installed from the storage unit and inputs it to a decision device such as a neural network generated by the learning model. The reference time determination unit 13 may determine the reference time output from the decision device as the reference time for setting the six-hour drug supply period.

[0027] The process of the third embodiment is one aspect of the process in which the reference time determination unit 13 determines a reference time for setting a predetermined input period for which the toilet device 1 is used less frequently based on the use history data of the toilet device 1. By determining a reference time for setting a predetermined input period for which the toilet device 1 is used less frequently, it is possible to reduce the possibility that the toilet will be flushed before the predetermined input period, which is the period during which the effect of the chemical agent is fully exerted, has elapsed. Furthermore, according to this process, instead of adding a chemical agent at a predetermined reference time, sterilization and disinfection are performed by administering the chemical agent to the inside of the toilet bowl with a predetermined input period according to the usage status of the family using the toilet 100, so that the chemical agent remains during the time period during the day when the usage status of the toilet device 1 is lower.

[0028] The horizontal axis in Figs. 8 and 9 represents time. The vertical axis in Figs. 8 and 9 represents the acquisition status of the flushing signal. When the acquisition status of the flushing signal is ON, it indicates that the flushing signal has been acquired. The control device 10 may output image information to an output destination such as the remote control device 8 or a terminal device, which displays the timing at which the flushing signal was acquired during one day (t1 to t6 shown in Fig. 8, t11 to t17 shown in Fig. 9), the input period (T), the reference time (ta), and the like, as shown in Figs. 8 and 9. The display information may be information that allows confirmation of the time of re-injection of the medicine and the timing (tb) at which flushing was performed during the input period. The display unit 82 of the remote control device 8 displays this display information on the display. This allows the user who uses the toilet to confirm the period of reduced frequency of use, the medicine input period (T), the time of medicine input, the time of flushing, and the like.

[0029] (Fourth embodiment) When detecting the medicine introduction time based on the reference time, the medicine management unit 15 may detect the medicine introduction time in a predetermined period based on the reference time, such as one hour before and after the reference time. For example, as shown in FIG. 10, the medicine management unit 15 acquires the time from a clock function unit provided inside the control device 10, similar to the above-mentioned step S101 (step S301). The medicine management unit 15 compares the acquired current time with the reference time and determines whether the current time is included in the period specified by one hour before and after the reference time (step S302). For example, when the reference time is 0:00, the medicine management unit 15 determines whether the current time is included in the period between 11:00 PM and 1:00 AM. When the current time is included in the period specified by one hour before and after the reference time, the medicine management unit 15 waits for a cleaning signal and determines whether the cleaning signal has been acquired (step S303). When the drug management unit 15 acquires a flushing signal from the control unit 11 during the period between 11:00 PM and 1:00 AM, it detects that it is the drug injection time in the same manner as in the process of step S103 (step S304) and instructs the drug injection unit 30 to inject the drug (step S305). As a result, the drug injection unit 30 injects the drug into the pooled water surface. The subsequent processes are the same as the processes from step S106 onwards in the first embodiment. The above process is one aspect of the process in which the drug management unit 15 detects the timing after flushing has been performed at a predetermined time before and after the reference time as the drug injection time. According to this process, a certain period is determined based on a certain reference time, and the drug can be injected on the assumption that the flushing of the inside of the toilet bowl during that period is the last flush. This allows the drug injection time to be freely determined in a situation in which the first drug injection time during the drug injection period is expected to vary over a certain period based on a predetermined time such as midnight.

[0030] Fifth embodiment The control unit 11 controls the water level to lower the water level L in the toilet bowl below a specified height of the water level L immediately after flushing, and the chemical management unit 15 may add the chemical after the water level L in the toilet bowl has dropped below a specified height of the water level L immediately after flushing. When adding the chemical, the water level is lowered compared to when the chemical is not added, so that the chemical can be controlled to cover the location where mold and the like will grow.

[0031] For example, as shown in FIG. 11, the cleaning management unit 16 receives a signal from the chemical management unit 15 instructing the injection of a chemical agent through the processing of steps S103 to S104 after the flushing signal is received from the remote control device 8, or the processing of steps S106 to S109 in the first embodiment described above (step S401). After that, the cleaning management unit 16 receives a flushing signal (step S402). In the flushing instruction issued to the cleaning unit 20, the cleaning management unit 16 instructs the cleaning unit 20 to flush by reducing a predetermined amount of flushing water by a predetermined amount (step S403). This lowers the pooled water level L in the flush immediately before the injection of the chemical agent. In this processing, the cleaning management unit 16 sequentially issues a first rim flushing instruction to supply flushing water from the rim water outlet 21, a jet flushing instruction to supply flushing water from the jet water outlet 22, and a second rim flushing instruction to supply flushing water from the rim water outlet 21 again. By not issuing a second rim flush command, the amount of flush water supplied to the toilet bowl may be reduced, and control may be performed to lower the pooled water level L. As a result, the flushing management unit 16 reduces the amount of flush water so that the pooled water level L is lowered by about 1 cm. As an example, the height of 1 cm may be a height at which, when a chemical is poured and bubbles are formed on the pooled water level, the bubbles hit mold that adheres to the intersection line A between the pooled water level L and the toilet bowl inner surface. This height may be a height other than 1 cm. As a result, the pooled water level L at the time of administration is lower than the position of the pooled water level L where mold occurs. In this state, the chemical management unit 15 outputs a chemical injection command to the chemical injection unit 30 to inject a foamed chemical (step S404). As a result, control is performed so that the foamed chemical hits mold that adheres to the intersection line A between the pooled water level L and the toilet bowl inner surface. With this control, the position of mold that has formed on the pooled water level L can be efficiently disinfected and sterilized. The process shown in Figure 11 is one aspect of a process in which the drug management unit 15 controls the flushing unit 20 of the toilet device to lower the height of the water level inside the toilet bowl compared to before the drug was added, and then controls the drug addition unit to add the drug.

[0032] In the above-described embodiments, the reference time determination unit 13 determines a reference time such that the injection period from the medicine injection time to the injection completion time is nighttime. However, the reference time determination unit 13 may determine a reference time such that the injection period from the medicine injection time to the injection completion time is daytime.

[0033] As shown in Fig. 12, the control device 10 may include at least a time management unit 14 and a medicine management unit 15. The time management unit 14 detects the medicine injection time. The medicine management unit 15 controls the toilet bowl to inject medicine into the toilet bowl at the medicine injection time, and injects the medicine when the toilet bowl is flushed within the injection period from the medicine injection time.

[0034] Each of the above-mentioned devices has a computer system inside. The steps of each of the above-mentioned processes are stored in a computer-readable recording medium in the form of a program, and the above processes are performed by the computer reading and executing this program. Here, the computer-readable recording medium refers to a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, etc. This computer program may be distributed to a computer via a communication line, and the computer that receives the program may execute the program.

[0035] The above program may be for implementing some of the above-mentioned functions, or may be a so-called differential file or differential program that can implement the above-mentioned functions in combination with a program already recorded in the computer system.

[0036] The present invention includes the following technical ideas. (Additional note 1) A time management unit that detects the time when the medicine is injected; a medicine management unit that instructs the toilet device to inject a medicine into the toilet bowl at the medicine injection time, and instructs the toilet device to inject the medicine when the toilet bowl is flushed during the period from the medicine injection time until the injection period has elapsed; A control device comprising: (Additional note 2) The control device according to claim 1, further comprising a reference time determination unit that determines a reference time that is a scheduled time for administering the medicine. (Additional note 3) The time management unit detects the reference time as the medicine injection time. Item 3. The control device according to claim 2. (Additional note 4) An acquisition unit for acquiring a current time, the medicine management unit instructs the toilet device to dispense the medicine when the current time passes the reference time; The time management unit detects the time when the toilet device is instructed to inject the medicine as the medicine injection time. Item 3. The control device according to claim 2. (Additional note 5) The reference time determination unit determines, based on a daily usage history of the toilet, a time included in a low frequency period during which the frequency of use of the toilet is the lowest within a day, as the reference time. The control device according to any one of claims 2 to 4. (Additional note 6) 6. The control device according to claim 5, wherein at least a portion of the input period is included in the reduced frequency period. (Additional note 7) The medicine management unit detects the timing after the cleaning is performed at a predetermined time before or after the reference time as the medicine introduction time. The control device according to any one of claims 2 to 6. (Additional note 8) The medicine management unit restricts the administration of the medicine when a difference between a period elapsed from the medicine administration time and an administration period based on the medicine administration time is less than a threshold value. The control device according to any one of claims 1 to 7. (Additional note 9) A control device according to any one of claims 1 to 8, which outputs display information indicating the medicine injection time and the injection period based on the medicine injection time. (Additional note 10) The medicine management unit controls the toilet apparatus so as to lower the height of the water surface inside the toilet bowl compared to before the medicine was dispensed, and then controls the toilet apparatus so as to dispense the medicine. The control device according to any one of claims 1 to 9. (Additional note 11) A toilet bowl and A medicine injection section that injects medicine into the toilet bowl; A flushing unit that supplies flush water to the inside of the toilet bowl, The medicine management unit instructs the medicine input unit to input medicine. A toilet apparatus comprising the control device according to any one of claims 1 to 10. (Additional note 12) A toilet bowl and A medicine injection section that injects medicine into the toilet bowl; A flushing unit that supplies flush water to the inside of the toilet bowl, The chemical supply unit is controlled to supply chemicals, and the cleaning unit is controlled to lower the height of the pooled water surface. A toilet device comprising the control device according to appended claim 10. (Additional note 13) A toilet device having a control device, an operating device, and a toilet, The control device, A time management unit that detects the time when the medicine is injected; a medicine management unit that instructs the toilet device to inject a medicine into the toilet bowl at the medicine injection time, and instructs the toilet device to inject the medicine when the toilet bowl is flushed during the period from the medicine injection time until the injection period has elapsed; A toilet equipped with [Explanation of symbols]

[0037] 1 toilet device, 2 toilet body, 4 toilet seat box, 5 toilet cover, 6 toilet seat, 8 remote control device, 10 control device, 11 control unit, 12 acquisition unit, 13 reference time determination unit, 14 time management unit, 15 medication management unit, 16 flushing management unit, 20 flushing unit, 30 medication input unit, 81 remote control function unit, 82 display unit, 100 toilet, 101 CPU, 102 ROM, 103 RAM, 104 HDD, 105 communication module

Claims

1. A time management unit that detects the time when the medicine is injected; a medicine management unit that instructs the toilet device to inject the medicine into the toilet at the medicine injection time; a reference time determination unit that determines a reference time that is a scheduled time for injecting the medicine; A control device comprising:

2. The time management unit detects the reference time as the medicine injection time. The control device according to claim 1 .

3. the medicine management unit instructs the toilet device to dispense the medicine when the toilet is flushed during the period from the medicine dispense time until the dispense period has elapsed; The control device according to claim 1 .

4. An acquisition unit for acquiring a current time, the medicine management unit instructs the toilet device to dispense the medicine when the current time passes the reference time; The time management unit detects the time when the toilet device is instructed to inject the medicine as the medicine injection time. The control device according to claim 1 .

5. The reference time determination unit determines, based on a daily usage history of the toilet, a time included in a low frequency period during which the frequency of use of the toilet is the lowest within a day, as the reference time. The control device according to any one of claims 1 to 4.

6. At least a part of the drug administration period based on the drug administration time is included in the frequency reduction period. The control device according to claim 5.

7. The drug management unit detects the timing after the toilet is flushed at a predetermined time before or after the reference time as the drug administration time. The control device according to any one of claims 1 to 6.

8. The drug management unit limits the administration of the drug when a difference between a period elapsed from the drug administration time and an administration period based on the drug administration time is less than a threshold value. The control device according to any one of claims 1 to 7.

9. Outputting display information indicating the drug administration time and an administration period based on the drug administration time. The control device according to any one of claims 1 to 8.

10. The drug management unit controls the toilet device to lower the height of the water level inside the toilet bowl compared to before the drug was dispensed, and then controls the toilet device to dispense the drug. The control device according to any one of claims 1 to 9.

11. A toilet bowl, A medicine injection section that injects medicine into the toilet bowl; A flushing unit that supplies flush water to the inside of the toilet bowl, The medicine management unit instructs the medicine input unit to input medicine. A toilet apparatus comprising the control device according to any one of claims 1 to 10.

12. A toilet bowl, A medicine injection section that injects medicine into the toilet bowl; A flushing unit that supplies flush water to the inside of the toilet bowl, A toilet apparatus comprising a control device that controls the chemical dispenser to dispense chemicals and that controls the flushing unit to lower the height of the water surface inside the toilet bowl.

13. A toilet device having a control device, an operating device, and a toilet, The control device, A time management unit that detects the time when the medicine is injected; a medicine management unit that instructs the toilet device to inject the medicine into the toilet at the medicine injection time; a reference time determination unit that determines a reference time that is a scheduled time for injecting the medicine; A toilet equipped with