JPH0820103B2 - Time-dependent control method in automatic hot water supply system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic hot water supply system, and more particularly to a method for controlling the automatic hot water supply system with time according to the time preference from the start of the bath to the exit of the bath, according to the preference of the individual bather. Regarding

[0002]

2. Description of the Related Art Recent hot water supply systems have not only a function of pouring hot water in a bathtub, but also a function of reheating cold water as a normal function. In addition, it has already become common sense to use a microcomputer (hereinafter simply referred to as a microcomputer) as a main control device that performs various controls. Above all, cost reduction acts in an accelerating direction, and in order to give the user further comfort and satisfaction, various value-added devices have been proposed from various viewpoints. Since the present invention also constitutes such a part, first, the hot water supply system itself using such a recent automatic water heater will be described with reference to FIG.

However, to state in advance, FIG.
Inside, operation start instruction means 4 attached to a remote controller (hereinafter, abbreviated as remote controller) 40 provided in the bathroom 30
1. Individual designating means 42, entering / leaving tank informing means 45 (this may not be provided when configured to automatically detect the entering / leaving tank as described later), and main controller 21
The memory learning unit 24 provided therein is added to realize the method of the present invention described later, and is not provided in the existing automatic hot water supply system. In addition, the temperature sensor 20 that measures the temperature in the bathroom is
According to the invention disclosed separately from the present application by the applicant, it is provided in order to appropriately extinguish the pouring temperature by controlling the temperature outside the bath when controlling the pouring temperature when pouring into the bath. It is a thing.

Therefore, excluding these parts, a conventional example which is generally applicable to any existing hot water supply system of this kind will be described.

The illustrated automatic hot water supply system or automatic hot water supply device has two heat exchangers 4 and 12, one of which is used to discharge hot water from a hot water tap 1 such as an ordinary faucet or shower or a bathtub 19 as required. A heat exchanger 4 for hot water supply for automatically pouring hot water inside, and the other one is when the hot water in the bathtub 19 does not reach a set temperature or when it cools down with time. It is a heat exchanger 12 for additional heating. The water from the water pipe is passed through the hot water supply heat exchanger 4 as indicated by the arrow "water", and this water is heated by heating the hot water supply heat exchanger 4 with the burner 5. Be warmed. Naturally, the burner 5 is supplied with fuel for combustion, but the water heater shown in the drawing uses the most common gas as the fuel as indicated by the arrow "gas". However, kerosene and other fuels may have almost the same structure as the hot water supply system, and if gas is read as such other fuel, the following description in this document can be applied almost as it is.

The gas from the gas pipe passes through the original solenoid valve 13, then passes through the solenoid valve 10 dedicated to the hot water supply side, and is further sent to the burner 5 through the solenoid valve 9 for controlling the gas flow rate (so-called gas proportional valve). To be However, in some cases, the solenoid valve 10 dedicated to the hot water supply side may be omitted and the gas proportional valve 9 may be substituted. The burner 5 is also fed by the fan 6 with an appropriate amount of air at any given time. On the other hand, the flow rate of water passing through the heat exchanger 4 is detected by the flow rate sensor 8, and the temperature of the water before entering the heat exchanger 4 is detected by the feed water temperature sensor 7 and the hot water discharged from the heat exchanger 4. Hot water temperature sensor 3
Is detected by

In addition, although not shown, flame detection is performed by a flame rod or the like for detecting whether or not the burner 5 is ignited in a predetermined manner for safety, or whether or not the burner 5 is burning. A sensor or a high limit switch for detecting an abnormally high temperature of hot water discharged from the heat exchanger 4 may be provided. Further, in order to further enhance the controllability, a fan may be provided as necessary. A sensor or the like for detecting the flow rate of the air currently output by 6 or the actual rotation speed of the fan motor and performing feedback control is also incorporated.

Next, the system including the heat exchanger 12 for reheating will be described. The hot water in the bathtub 19 is guided from the inlet to the circulation flow path, and this circulation flow path is the heat exchanger 12 for reheating.
After passing through the inside, it is connected to the outlet that opened again toward the bathtub 19. The heat exchanger 12 for additional heating is also selectively heated by the burner 16 similarly to the heat exchanger 12 for hot water supply described above.
3, the gas as fuel is selectively supplied to the reheating side through the dedicated solenoid valve 14, and the dedicated fan 17 also sends the air controlled to the optimum flow rate at that time. To be In addition, when heating the heat exchanger 12 for additional heating, the circulation pump 11 works, and the hot water in the bathtub 19 is circulated through the heat exchanger 12 while circulating. Further, the actual temperature Kx of the hot water in the bathtub to be reheated is detected by the in-tub hot water temperature sensor 18 provided in the circulation passage, and
The actual water level Wx therein is detected by a water level sensor 15, which generally takes the form of a pressure sensor. Although not shown, of course, a flame rod or the like for detecting whether or not the burning burner 16 has been ignited in a predetermined manner, or whether the burner 16 is currently burning. If a detection sensor is provided, similarly if necessary,
The heat exchanger 12 for reheating is also provided with a high limit switch or the like for detecting the temperature when the temperature becomes abnormally high.

As described above, in the recent automatic hot water supply system of this type, the main controller 21 including the microcomputer (abbreviated as microcomputer in FIG. 2) 23 detects from the various sensors described above. Corresponding control is performed according to signals and signals based on the operation of various operation switches attached to a remote controller (hereinafter, simply referred to as a remote controller) provided separately from the main body part of the main control device 21 (called a burner controller). Eggplant Further, in FIG. 2, only the bathroom remote controller 40 provided at an appropriate place in the bathroom 30 is shown, but in many cases, it can be installed at each of a plurality of places such as a kitchen remote and a living room. The remote controller used in this type of conventional hot water supply system is provided with a temperature setting means capable of setting at least the temperature Ks at which the user wants hot water to be supplied by the user, so that the remote control can be used at a predetermined place such as a living room or kitchen. To one of the installed remote controls,
Alternatively, an operation switch or the like is provided on all remote controllers. In addition, some have a priority mechanism. This is because among a plurality of remote controllers, the operation of the remote controller that has a higher priority with respect to specific command information has priority over the others, and the existing setting information related to the same content that was commanded by the other remote controller or newly added It refers to what the commanded information is invalidated.

In the case of the drawing, it is assumed that the bathroom remote controller 40 is not provided with the above-mentioned operation switch. Therefore, although not shown in the drawing, this operation switch is a so-called household electric appliance. It is not the power switch on the device. Normally, in this type of automatic hot water supply system, at the beginning of installation, the main controller 2 is inserted by inserting the power plug of the system into a commercial AC power outlet.
1 is powered on, and thereafter, the power continues to be supplied until the power plug is intentionally unplugged for the purpose of repair or removal.
The operation switch is used by the user to instruct whether or not combustion in the hot water supply burner 4 or the reheating burner 16 is permitted depending on the conditions, assuming that the system is powered on. Unless the user puts the operation switch in the operation position (combustion position), the main control device 21 uses the operation control unit 22 to operate the original solenoid valve 13 and the dedicated solenoid valves 10 for hot water supply and reheating, respectively. 14 is kept closed so that the ignition operation is not caused in the first place. However, from the feeling of use of general users,
In many cases, the notation "power supply" is used. In other words, when the user has the operating switch (not shown) in the operating position, the combustion for hot water supply starts automatically each time the hot water tap 1 such as the faucet or shower is opened.
That is, when the hot water tap 1 is opened and a water flow passing through the heat exchanger 4 is generated, the flow rate sensor 8 that has been issuing a water flow stop signal (zero flow rate signal) indicates that the water has started to flow. Signal (hence the flow rate signal is
(Which can also serve as an OFF detection signal) is sent to the microcomputer 23. In response to this, the microcomputer 23 sends a signal that gives the gas proportional valve 9 a valve opening of a predetermined amount (of course, before that, each solenoid valve 10, 13, 14 was opened), and the corresponding flow rate was changed. In addition to supplying gas to the burner 5, an air amount adjustment signal (rotation speed control signal) is sent to the fan 6 to supply an amount of air suitable for combustion to the burner 5 while operating an ignition mechanism (not shown). .

When the combustion in the burner 5 is started in this way, the heat exchanger 4 is heated, the water passing through the heat exchanger 4 is warmed, and the hot water is supplied from the hot water tap 1 such as a faucet. However, this actual hot water supply temperature is also determined by the hot water supply temperature sensor 3
If there is an error with the set temperature Ks set by the user, the microcomputer 23 causes the valve opening of the proportional valve 9 and the rotation of the fan 6 to eliminate such an error. The combustion energy in the burner 5 is controlled by adjusting the number and the like. When the user closes the faucet that was supplying hot water and stops the hot water, the flow rate sensor 8 sends a water flow stop signal (flow rate zero signal) to the microcomputer 23. , Gas proportional valve 9
To send a fully closed signal to the burner 5 to quickly extinguish the fire. However, in some cases, in addition to the flow rate sensor 8 that outputs the actual flow rate in real time, a water flow switch that simply detects whether or not a water flow has occurred may be provided, or when the flow rate is completely zero. Even if the flow rate falls below a predetermined flow rate, the combustion may be stopped in order to prevent abnormal heating of the hot water temperature. For further safety, when the heat exchanger 4 is provided with a high limit switch, when it detects an overheated state up to an abnormal temperature and sends an overheat signal to the microcomputer 23, the microcomputer 23 causes the operation controller to operate. 22 and immediately enter the forced extinguishing action of the burner 5, or limit the amount of combustion,
Similarly, although not shown, even when a suitable combustion detecting element such as a flame rod detects a mid-fire in the burner 5, the microcomputer 23 causes the operation control unit 22 to operate.
To send a forced closing signal to the engine, and depending on the system, also send a forced closing signal to the original solenoid valve 13 to prevent the risk of raw fuel leaking out of the machine.

When the user operates the water filling command switch (not shown) provided as a dedicated switch in the existing system and selects automatic water filling in the bathtub 19, the main controller A hot water filling request signal is sent to the microcomputer 23 built in the microcomputer 21. In response to this, the microcomputer 23 opens the switching solenoid valve 2 via the operation control unit 22, and the hot water from the hot water heat exchanger 4 is bathed in the bathtub 19. To be able to lead directly to. Regarding this automatic filling, as one of the necessary data, the preset water level data Ws _o is also given to the microcomputer 23 in advance. The set water level data is data that specifies the height position of the bathtub 19 to be filled with hot water according to the user's preference when the user operates the water level setting means 44 provided in the bathroom remote controller 40 or the like. although this is in fact is often expressed in all hot water required from starting putting water into an empty tub up to the set water level Ws _o. This is because if the set water level Ws _o is simply represented by the geometrical height in the bathtub, it is not possible to deal with the change in the bathtub shape. If you use a classical float type liquid level detector that floats in the bathtub, you can simply know the water level by the geometrical liquid level of the hot water in the bathtub.
This is unfavorable in the modern market. Therefore, even in the system shown in FIG. 2, the switching solenoid valve 2 is switched to the bathtub 19 side by the start of the automatic filling operation, and the actual amount of hot water stretched in the bathtub 19 after pouring is started is Is calculated using the pressure value (water pressure value in the bathtub) detected by the water level sensor 15 provided in the circulation path around the heat exchanger 12 for reheating. Then, after a certain time has passed since the start of the water filling, the calculated value is the set water level W set by the user.
When a pressure value corresponding to s _o, under the command of the microcomputer 23, the operation control unit 22 where switches the changeover valve 2 to the original side. As a matter of course, the user can set the temperature of the hot water supplied into the bathtub 19 during this automatic filling, and the microcomputer 23 controls the flow rate sensor 8, the water temperature sensor 7, as in the hot water supply to the hot water tap 1. Based on each information obtained from the hot water supply temperature sensor 3, the operation control unit 22 is caused to optimally control the opening of the proportional valve 9 and the rotation speed of the fan 6, and the temperature detected by the hot water supply temperature sensor 3 is determined by the user. It is intended to always maintain the set temperature Ks _o for filling the water that has been set.

[0013] However, what must be a little careful, in the conventional, settings that can be temperature Ks _o of the user,
Even when this automatic hot water filling is performed, the hot water temperature at the portion detected by the hot water temperature sensor 3 at the outlet of the hot water heat exchanger 4 is designated, as in the case of hot water supply from the normal hot water tap 1. . Therefore, after the start of the automatic water filling, to always maintain the set temperature Ks _o the combustion control of the, even if successful stable pouring, the actual hot water in the bathtub 19 at the time the automatic water filling operation is completed Temperature (Temperature of hot water in bath) Kx
Is generally was normal to become low-eye than the set temperature Ks _o. That is, initially, poured been hot water in the empty tub 19, even if its pouring temperature was set temperatures Ks _o, results in direct contact with the bottom of the cold bath, is rapidly cooled , becomes considerably to the low eye of temperature than the set temperature Ks _o is in the tub 19. But then the withstand it without the pouring of keeping the set temperature Ks _o under the combustion control already described is gradually is continued, the increase in overall heat energy with increasing hot water, in the bathtub 19 the actual temperature of the hot water Kx also become a rising trend, in the automatic hot water filling the end of the case that led to the water level W _o which corresponds to the set water level Ws _o, also rises to a place very close to the set temperature Ks _o bath indoor bath temperature Kx. Nevertheless, with respect to the set temperature Ks _o, it would remain in the slightly lower temperature.

Therefore, in the prior art, it has been considered that the initial auxiliary heating is performed immediately after the completion of the automatic filling.
To illustrate, with the pouring completion to set water level Ws _o, microcomputer 23 while terminating the automatic water filling operation already described, with respect to the operation control unit 22 issues a command to start turning the circulation pump 11. This is because the hot water in the bathtub 19 is appropriately stirred so as to have a uniform temperature, and then the hot water temperature Kx in the bath is taken into itself through the hot water temperature sensor 18 in the bath.
As a result, when the temperature difference between the set temperature Ks _o this bath indoor bath temperature Kx had more than a predetermined value, the microcomputer 23 in the next, and the operation control unit 22 to the burner 16 for reheating The fire is ignited, and the hot water in the bathtub 19 is heated by the heat exchanger 12 for reheating. After the start of the additional heating, the microcomputer 23 repeats the bath hot water temperature Kx repeatedly and continues to compare it with the set temperature Ks _o, and eventually the bath hot water temperature Kx reaches the set temperature Ks.
_When reaching or _{exceeding 0} , the operation control unit 22 is caused to stop the combustion in the burner 16 and the operation of the circulation pump 11 is also stopped.

When this initial supplementary reheating is completed, the hot water at the set water level Ws _o is set to the user at the set temperature Ks.
_An informing means (for example, a sounding body or the like that can be used as the alarm means 46 in the present invention) for informing that the water has been boiled up to _o is generally operated. Furthermore, it has an automatic heat insulation mode, for example, 20 minutes to 30 minutes.
So on minute interval, the bath indoor bath temperature Kx monitors while turning the regular circulation pump 11, contrast setting temperature Ks _o, predetermined temperature difference or more, if you decrease again,
Something that automatically starts reheating has also been proposed. Of course, although not shown, the bathroom remote controller 40
By operating the reheating command switch provided on the
It is possible to reheat by a user's compulsory command, and contrary to this reheating function, some have a hot water filling function that automatically fills the hot water in the bathtub if necessary. . That is, when the user changes the set temperature to a value lower than the actual hot water temperature at present, the switching solenoid valve 2 is switched,
A water flow that passes through the hot water supply heat exchanger 4 is generated and supplied to the bathtub 19, but the burner 5 does not burn, so that the hot water in the bathtub is filled. This bath filling ends when the bath temperature sensor 18 detects the set temperature Ks _o .

[0016]

As described above, even in the conventional automatic hot water supply system, the hot water that has been set up to the set water level in the bathtub according to the user's preference is likewise set to the set temperature specified by the user. The control to boil up to was almost satisfactory. However, after boiling, while the user is taking a bath, there is no conventional example that automatically controls the hot water temperature with time according to the user's preference, and it is left to the user's own manual control. It was For example, generally, immediately after taking a bath, the bath temperature Kx feels higher, but as the body gets used to it, it feels lukewarm. In such a case, the existing control method cannot perform automatic control, and the user has no choice but to change the set temperature by himself or forcibly perform the manual reheating operation. Also, the way people perceive such perceived changes in hot water temperature varies greatly depending on the person, but of course, there was no way to cope with such individual differences.

As described above, not only is it troublesome to operate each operation means attached to the remote controller provided in the bathroom during bathing, but also each time bathing, the operator always likes his or her favorite. In order to obtain changes in hot water temperature and changes in water level at each point in time, the user must always remember his or her preference. This is surprisingly difficult. Furthermore, it was not possible to force a small child or an old man to perform such a remote control operation or to request a memory about a set temperature or the like.

The present invention has been made in view of such a conventional situation, and the set temperature information changed and set between the time when the user enters the bathtub and the time when the user leaves the bathtub is captured and stored as time elapses. Therefore, the main purpose is to achieve automatic control according to the user's temporal bathing mode.

Further, as a second object of the present invention, the set temperature change made by the user at the time of the previous bath is tentatively large with respect to the set temperature at the bath before the previous bath. However, it may be transient only at that time, so instead of relying only on the previous set temperature information, the set temperature at the time of bathing this time should be set to an appropriate value in consideration of the set temperature of the previous time. The method of setting will not be disclosed.

In view of the existence of a plurality of bathers, the present invention does not provide a method for performing the above-mentioned automatic control for each individual. We are also trying to provide a method that can give an alarm if the bath time is abnormally longer than the bath time.

[0021]

Since the present invention SUMMARY OF] to solve the above problem, with the start of the automatic control mode, under the command of the main control unit, the set water level and the set temperature data Ks _o stored in the storage means until the set water level at the set temperature corresponding to the data Ws _o, it has an automatic water filling functions tensioning a hot water into the bathtub, also until after the automatic water filling also complete automatic control mode ends, are set from time to time As a method of controlling the automatic hot water supply system that also has a function of controlling the hot water temperature in the bath so as to satisfy the set temperature over time by the main controller,
The following method is disclosed.

First, in each automatic control mode, after the completion of automatic filling, the main controller starts measuring time from the time when the generation of a bath signal is detected . The i in here integer of 1 or more, after the start of the time measurement, if there is the i-th set temperature change operation by the user, and is the change time elapsed up to the point where the change operation there was Detect the set temperature. Then, the previous elapsed time data t has already been stored in the storage means.
c _i, the previous setting temperature data Ks _i are stored, and, when not passed yet developing time tc _i corresponding to the previous elapsed time data, the old course the previous elapsed time data tc _i time data _tc i -pre, the previous setting temperature data Ks _i and old set temperature data _Ks i -pre, currently detected elapsed time data and the current changed setting temperature data of each detection time data _tc i -no
w, as a change set temperature data _Ks i -now, K, L
Was with one or more real _{respectively, Ks i = (Ks i -pre} × k + Ks i -now) / (K + 1), tc i = (tc i -pre × L + tc i -now) / (L + 1) becomes determined by computing equation The data tc _i and Ks _i are stored again in the storage means as the previous elapsed time data tc _i and the previous set temperature data Ks _i for the next automatic control mode, respectively. Then, in the next automatic control mode, after the start of the time measurement, when the time indicated by the previous elapsed time data tc _i stored in the storage means has elapsed, the main control device is operated. and up to a set temperature indicated by the last setting temperature data Ks _i, the control to change the tank indoor bath temperature.

This basic control method according to the present invention is the present application.
Although described in claim 1, the method is described for understanding.
For example, using a microcomputer or rewritable memory
Considering the existence of a device that
When raised, it becomes as shown in FIG. However,
In the method of the present invention as claimed in claim 1,
For example, in principle, there is no restriction on the upper limit of the number of times i.
However, a specific device configuration that realizes the method of the present invention is
Considering also, the set temperature data and elapsed time
Since data must be stored, restrictions on memory capacity, etc.
Therefore, an infinitely large number of times i is not allowed and
Limited to below. This point relates to the number of bathing times n described below.
It is the same as above.

Now, as will be described later, the user operates, for example,
By operating the start instruction means, etc., the automatic control mode in FIG.
When entering (step 101), the main controller described above is written.
Initial setting temperature data read from replaceable memory
Based on ks _o and the initial setting level data Ws _o fully these
Automatic hot water filling is started (step 102).

Automatic filling is completed (step 103)
Later used by the main controller, as described in the examples below.
By the operator's operation of the entry / exit tank notification means, or automatic detection method
When the user detects the bath entering the bath (step
104) and start measuring time from that point (step
Flop 105), at the same time also, Tsu Thea and stored in the memory
Set temperature data Ks for each i-th temperature change
_i (i = 1, 2, 3, ..., Maximum) group and start time measurement
From the time point (step 105), change the temperature each time.
Read the elapsed time data tc _i group up to the point of time
(Step 106). In addition, in FIG.
To implement a particular aspect of the invention described below.
This step will be available for use in the example row chart.
In addition, as shown in brackets, each bathing at
The case where the bath time data tv _n for each
ing. This point will be explained later with reference to FIGS.
The same applies to step 302 in the chart.

The main controller first sets the first setting.
Decided to use temperature data, elapsed time data
(This is represented by "i = 1" step 107), hour
Monitoring the elapsed time from the start of measurement (step 1
08). Then, in general, the first
Elapsed time tc _i = tc ₁ at which the temperature of hot water in the bath should be changed for the second time
The user can change the set temperature before
Work, that is , in the first tank when the time tc ₁ has passed
Equipment that was planned to be changed to that temperature by changing the hot water temperature
Aside from the constant temperature data Ks _i = Ks ₁ , a new set temperature K
If s ₁ -now is set (step 10
9), until the main controller reaches the set temperature Ks ₁ -now
There was a change operation at the same time as commanding the change of the hot water temperature.
Elapsed time data tc ₁ from the start of time measurement up to time
-Now is extracted (step 110).

Based on this, the history stored in the memory
The overtime data tc ₁ is replaced with the old elapsed time data tc ₁ -pr
e, the set temperature data Ks also stored in the memory
₁ is the old set temperature data Ks ₁ -pre, and K and L are
As respectively one or more _{real, Ks 1 = (Ks 1 -pre} × k + Ks 1 -now) / (K + 1), the _{tc 1 = (tc 1 -pre ×} L + tc 1 -now) / (L + 1) becomes operational expression Obtain data tc ₁ and Ks ₁ (step
111), the newly obtained data tc ₁ , Ks ₁
Is stored in the memory (step 112). However, this
To store various data such as
The user is instructed to end the automatic control mode (step
Collectively transferred to memory by-up 116, 118),
It can also be configured to store. Here is the invention
To understand the principle of the method, step 11 as described above
It is assumed that the data is stored in the memory in 2.
Further, the data tc ₁ , newly obtained in this way ,
Ks ₁ is the previous elapsed time data under the automatic control mode next time.
Over data tc _1, it is treated as the last time the set temperature data Ks ₁
It

Next, the main controller is the second storage area.
Is designated and selected (that is, in step 114, “i =
i + 1 ”, generally speaking i is a number
Increment by "1"). As mentioned earlier,
In principle, memory resources (memo)
There is a limit to the capacity, and even if you increase the number unnecessarily, it is practical
Therefore, the set temperature change number i is designed by design.
A fixed maximum can be determined. Where i is
It is determined whether the maximum value is exceeded (step 115), and the
If not, the process returns to step 108. here
For example, if i is at least "2" or more
For example, the 2nd automatic bath temperature change operation or user
New calculation and memory operation of set temperature based on change operation by
You can move on to the work. And regarding this second time
Also, the elapsed time tc _i = tc ₂ stored in advance has elapsed
Before the user changes the set temperature by himself
Is the work from step 109 to step 112
New data tc ₂ and Ks ₂ are calculated according to
Then, these are updated in the memory and automatically controlled at the next time.
In the control mode, the previous elapsed time data tc ₂ , the previous set temperature
It is handled as data Ks ₂ . After that, the same behavior
Data up to the maximum number of times allowed,
tc _i and Ks _i are stored in the memory, and the next automatic control mode is
The last time the elapsed time data tc i under over _soil, the last time the set temperature de
Data Ks _i .

On the other hand, in step 114, i
As a result of incrementing by "1", the number of times permissible
If it is determined that the maximum
115), the main controller is an automatic control mode by the user.
The system waits for a command to end the command (step 116)
The automatic control mode is ended in response to the end instruction. Also this
Is not mandatory, but the elapsed time set each time
The user of the set temperature data I near-in and has not yet passed data
There is no change operation by the
Also, when step 109 is performed, steps 109 to 118 are performed.
The automatic control mode can be ended as shown in step 119.
Noh is generally used. Other, not shown, but optional
It is possible to judge whether the termination instruction has been given at an appropriate time.
This is the point that each of the other flow charts listed below
The same applies to the example.

On the other hand, from the start of time measurement,
The elapsed time data tc _i stored for the time _i is
Before the temperature is exceeded, the user cannot change the set temperature data.
Rather, when the spent developing as it is the time tc _i, time
The process proceeds from step 108 to step 113.
The set temperature stored for the i-th set temperature change
Data Ks _i (that is, for the time i, the previous setting
After changing the bath temperature to the constant temperature data Ks _i )
Move to step 114.

In this way, the set temperature is changed every i times.
When there is a change by the user, a new
Valley calculated elapsed time data tc _i, the set temperature data K
s _i is the previous elapsed time data under the next automatic control mode
Data is treated as preset temperature data last time and every i times
When the set temperature is not changed by the user, the data
In memory before update without rewriting
Previous elapsed time that was stored data tc _i, the previous setting temperature
Automatic tank indoor bath temperature change based on the time data Ks _i is performed
At the same time, the data tc _i and Ks _i are
Last time data tc under automatic control mode
_i, are treated as the previous setting temperature data Ks _i, the
Even under the next automatic control mode, the time that is determined tc _i
It stipulated in elapsed time set to a temperature Ks _i, automatic
The bath temperature in the bath is changed.

The above calculation formula is a weighted average calculation except when K = 1 and L = 1. However, this idea can be applied to the set water level Ws _o when the automatic filling is first performed. That is, in the present invention, in addition to the above configuration, at the time when the main control device detects the generation of a bath signal for informing the bath in each automatic control mode, the water level Wx in the bathtub at that time is detected. detects, in the current under the automatic control mode the set water level data Ws _o used during the automatic water filling the old setting level data _Ws o -pre, as one or more real number _{M, Ws o = (Ws o} - also proposed method, wherein the re-storing the pre × M + Wx) / ( M + 1) data Ws _o obtained by the set water level data Ws _o when the automatic water filling for the next time control mode.

This aspect of the invention is described in claim 4 of the present application.
However, this is also a more specific flow chart for understanding.
If you want to show the chart example, follow the flow chart shown in Fig. 3.
On the other hand, the steps shown in FIG.
Can be mentioned. That is, the flouch shown in FIG.
The maximum value of the set temperature change number i in the chart has been exceeded
After the option “yes” in the determination step 115,
And whether or not the user has changed the set temperature.
After the option “no” in step 109, a description will be given later according to the embodiment.
The user can, for example,
It is possible to detect that the tank has been informed
Judgment step 2 for detecting the user's bath by the detection method
01 is added, and when the bath is detected, the bathtub at that time is detected
The water level Wx is detected (step 202). Then it
In Kyu設the set water level data Ws _o that has been stored in the memory
And a constant water level data _Ws o -pre, and one or more of the real number of the M
_{To, Ws o = (Ws o -pre} × M + Wx) / (M + 1) by seeking new setting level data Ws _o (Step 2
03), this was described above for the next automatic control mode
Memo as set water level data Ws _o during automatic filling
It is stored again in memory (step 204). Then the next step
(Step 116 in the case of the flowchart of FIG. 3)
Go to step 118). Such a step group 201
~ 204 are also the frames according to FIGS. 5 and 6 described below.
Can be incorporated into a row chart, in which case the diagram
The first step 201 in FIG. 4 is the step in FIGS.
You can replace it with pages 304 and 309 for reading.

Further, according to the present invention, there is provided in claim 9 of the present application.
As described above, in the control method having the above configuration, n is 1 or less.
As the integer above, after the automatic filling is completed, the main control unit
The time measurement is started each time the generation of the bath signal is detected.
Start; i is an integer greater than or equal to 1 and time meter accompanying the nth entry
After the start of measurement, the user changes the set temperature for the i-th time
If there is, the elapsed time up to the time of the change operation
And the set temperature that has been changed are detected; related to the nth bath entry after the end of the previous automatic hot water filling
During the time measurement, the set temperature change corresponding to the i-th time
In the storage means, the previous elapsed time data tc _i and the previously set temperature are stored.
Degrees data Ks _i is stored, the previous elapsed time de
If the data tc _i has not been lost,
Between data tc _i old elapsed time data _tc i -pre, before
Old set the times set temperature data Ks _i temperature data _Ks i -p
Re and changed with the elapsed time data detected this time
The temperature setting data, respectively detection time data _tc i -no
w, as a change set temperature data _Ks i -now, K, L
Was with one or more real _{respectively, Ks i = (Ks i -pre} × k + Ks i -now) / (K + 1), tc i = (tc i -pre × L + tc i -now) / (L + 1) data were determined by tc _i and Ks _i for the next
Time meter for nth entry of tank for automatic control mode
Previous elapsed time data tc _i during measurement , previous set temperature
Re-stored in the storage means as data Ks _i; in the next under the automatic control mode, the n-th input
After the time measurement of the tank is started and before the time is stored in the storage means
The time indicated by the time elapsed time data tc _i has elapsed
At the time, the main controller is operated and the previously set temperature data Ks _i
Change the bath temperature to the set temperature indicated by
Also we propose a method which is characterized in; that controls so.

This is also described with reference to the flowchart example.
Then, it becomes like FIG. In FIG. 5, shown in FIG.
Of the same symbols used in the flow chart
The attached steps are steps of the same content, and the reference numeral
The steps shown in the 00s are added in this mode.
It is an added step. Automatic control mode over for example the user
After starting (step 101), until the end
(Steps 117 and 119) entered the bath several times
It may come out. Aspects of the invention described herein
Is a countermeasure to this, and in principle, the upper limit number of times is
There is no limit to the number, but in reality it still has a finite memory area.
The maximum value is specified by design because it uses the memory resources it has.
During the specified n times each time,
Automatic bath temperature over time, as described above, over time
When changing or when the user intentionally changes the set temperature,
Create new data based on this, memorize it, and automatically
Use the updated data as the previous data under control mode
It is something that can be done.

In the steps which overlap with the explanation given in FIG .
I will not repeat the explanation about it, but after the automatic filling is completed (step
103), first set n = 1 (step 30).
1). Therefore, based on the entry detection (step 104)
As the measurement starts (step 105)
The data group read from the
The elapsed time data for changing the set temperature over i times
, Tc ₁ , tc ₂ , ... And the settings corresponding to each elapsed time data.
The constant temperature data Ks ₁ , Ks ₂ , ... (Step 30)
2).

Based on this, the description has already been given with reference to FIG.
After the procedure, finally i = maximum number of times, the first bath
Is there a change in the hot water temperature inside the tank over time?
Or the set temperature data is changed by the user's intentional operation
It has been a New Data _tc i based thereon, Ks _i turtle
Options stored in step 115 after being updated in memory
If "yes" is selected, the main controller will first
The end of entry of the eye, that is, the state where the exit can be detected
(Step 304). When the tank is detected, the automatic control mode
The end of the card (which is an end here) is not detected
If n is set, n is incremented by the number “1” (step
(Step 305). Therefore, in this description, n is
It will change from "1" to "2". If the maximum value of n is
If it is set to "2" or higher, it is the next step.
In step 306, it is determined whether n exceeds the maximum value.
After the option "no", the second bath entry can be detected again.
Back to state (step 104).

In this way, each n-th time after the second time
Regarding the bath entry, the procedure already described is repeated, and each i for the second
The previous elapsed time data tc ₂ for each time and the previous set temperature data
Automatic hot water temperature change operation using Ks ₂
Data, or data tc _i due to a change by the user on the way ,
While updating operation of Ks _i have been made, eventually maximum bathing number of times
When the bathing up to (n = maximum value) is completed, n exceeds the maximum value.
Select "yes" in step 306 for determining whether or not
After that, the main control unit waits for the end instruction (step 307).
The automatic control mode is terminated based on the detection of the end instruction.
(Step 308).

It should be noted that each i-th time when entering the n-th tank
Following which Toyogi the elapsed time tc _i should make the change set temperature
Considering when the user left the tank before,
In the flowchart, the option “n
Step 309 of determining whether or not there is a tank following "o"
If there is a tank, the next
Wait for the (n + 1) th bath, while
The last bathing time (n = maximum value) was the time when there was a bath on the way
If there is, wait for the end instruction through judgment step 311.
(Step 312), the detection of the end instruction
Both ends the automatic control mode (step 313).
Is convenient.

However, in this way, for each n times of bathing,
All of the set temperature data for changing the set temperature i times in total.
And the timing at which the set temperature should be changed.
When storing the elapsed time data
As it gets older, it requires a larger memory capacity.
Also, in fact, all bathing under the previous automatic control mode
Even if the set temperature change data for each time is not stored,
The set temperature data and elapsed time data for each bathing
If you remember the set of data, it may be enough.
Yes you can.

Therefore, the present invention is suitable for such a case.
As an aspect, as described in claim 10 of the present application , m is 3
Above, it is an integer less than or equal to n, and
Is calculated by the above formula and stored next time
Previous elapsed time data tc _i for control mode , previously set
The constant temperature data Ks _i are all associated with the mth entry into the tank.
Obtained previous elapsed time data tc _i , previous set temperature data
Providing a method characterized by rewriting with Ks _i
I am planning.

In other words, this is for the first bath
The memory area group and the memory area group for the second bathing
Only the pair of memory area groups is provided for the second bath
By gradually rewriting the contents of the memory area group
is there. That is, if there are 3 or more baths and they are used
If the operator changes the set temperature, the third time
With each subsequent bath temperature change operation
The elapsed time data tc _i and
If constant temperature data Ks _i is obtained, these data
Stored in the memory area group for the second time until then.
Rewrite the corresponding data that was used. This is also flow
-In the example of the chart, for example, the flow of FIG. 5 described above
As a modification to the chart, it becomes as shown in FIG.

However, in the flowchart of FIG.
Completion of the nth input, that is, the nth tank is discharged
Knowledge judgment step 304 (or step 309)
When issued, n is incremented by the number "1" (step
305 or step 310), then n is the maximum value
Judgment step 306 (or step
If n exceeds the maximum value after 311), wait for end instruction
(Step 307 or Step 312)
However, in the flowchart of FIG.
Is omitted, and step 401 (or fixing n = 2) is performed.
It has been changed to step 402). As a result, the first
Dedicated to the first bath when the eye bath (n = 1)
Elapsed time and after the set temperature data _tc 1, Ks ₁ of
Temporary automatic change in bath temperature or use
When a person performs an operation of changing the set temperature, the first
At the second time, the elapsed time in the dedicated memory area and the set temperature data
Update tac ₁ and Ks ₁ . However, after the second entry
Every fall, whether 3rd or 4th, n = 2
The presence of step 401 (402) to set to
Only the memory area for the second time is specified and stored in it
Elapsed time, set temperature data tc _i (i = 2), Ks
Automatic change in bath temperature over time based on _i (i = 2)
When these are changed by the user,
The corresponding data in the memory area for the second time is updated.

Such an idea is set up i times in total.
It can also be applied to constant temperature changes. That is, once
The user temporarily changes the set temperature three or more times while taking a bath.
Even if you do, under the automatic control mode next time
Do not change the automatic hot water temperature of the eyes. And this
The elapsed time data for the second time is based on the automatic
Updated every time the user changes the set temperature under control mode
It is the data that was set, and in the end, it was the automatic control mode before the last time
Gained with the last set temperature change operation made by the user below.
It is the collected data.

When this is already described as a method, the present invention claims
11, j is an integer not less than 3 and not more than i above
Then, based on the j-1th set temperature change,
The next automatic control that is more required and stored in the storage means
Previous elapsed time data tc _i for control mode , previously set
All of the temperature data Ks _i is for the jth set temperature change.
The previous elapsed time data tc obtained by the above-mentioned arithmetic expression based on
_i , rewriting with the previously set temperature data Ks _i ;
The method is characterized by:

Therefore, this embodiment of the present invention can be applied to a flow chart.
The example shown in FIG. 3 corresponds to claim 1 of the present application.
Some modifications in the row chart are shown in Fig. 7, and
The flow shown in FIGS. 5 and 6 corresponding to claim 9 or 10.
Some modifications in the chart are shown in FIG.
Will be things. That is, the diagram shown on the left side of FIG.
Step groups 114, 115, 1 in the flowchart of FIG.
16, 117 are step groups 501, shown on the right side of FIG.
116 and 117, and also shown on the left side of FIG.
Step groups 114 in the flowcharts of FIGS.
115 , 304 , 116 and 117 are shown on the right side of FIG.
Change to step group 501, 304, 116, 117
It As mentioned above, these flow charts in FIGS.
Temperature changes over a total of i times for each bathing time n
Regarding the change, a total of i memory area groups are assigned for each i times.
Dedicated to one set for the set temperature data and one set for the elapsed time data
I had to prepare it on the right side in Figs. 7 and 8.
According to the flowchart shown on the side, i is substantially “1”.
Incremented by 1 and the result exceeds the maximum value
The loop comes around instead of making a decision
You just have to specify i = 2 at step 501.
The temperature set by the user changes after each bath.
I = update only the data in the memory area group for the second time
Go away.

Therefore, at the end of the automatic control mode, the
The elapsed time and set temperature data remaining in the memory area group for the second time
When the user last changes the set temperature,
Based on the set temperature and elapsed time data of
It becomes the data obtained by the calculation. Of course, the second bath in the bath
To Toyogi the elapsed time _tc i = _{tc 2} of up to automatic change of temperature
Since there was no previous operation to change the set temperature by the user,
The set temperature data Ks _i corresponding to the passage of time
= After changing the hot water temperature by Ks ₂ automatically
Without changing the set temperature by
At the decision step 118, the end of the automatic control mode is detected.
Then, the main controller ends the automatic control mode for that time.
I do.

In the present invention, the elapsed time as described above is further added.
Multiple sets of data and set temperature data for individual users
A method exclusively prepared for the above, that is, described in claim 12 of the present application.
, The previous elapsed time data tc _i , the previous set temperature data
A storage area group for storing over data Ks _i plural sets provided; in each time automatic control mode, your previous generation of Iriso signal
By selecting the individual specifying means,
We also propose a method characterized by selecting a corresponding set of regions .

This is the flow chart shown in FIGS.
Steps that can be added to the example
Is shown in FIG. That is, power is supplied to the device.
As described in the examples below.
Such as individual designation means 42
When an individual is designated (step 601), the main control unit
Of the multiple storage areas provided for each individual,
Use only the specified storage area group specified
(Step 602). Then enter the automatic control mode.
, The first step in FIGS.
The automatic control mode start step 101 is started.

In the present invention, particularly, as measures against the elderly,
Controlled when bathing for an unusually long time
When the device judges, that is, after each bathing
The time from when the knowledge is given to when the tank is detected is the usual time
As a method of issuing an alarm if it is abnormally longer than the interval,
As described in claim 13 of the present application, n is a positive integer of 1 or more, and after the automatic filling is completed, the main controller starts measuring the time each time the generation of the nth bathing signal is detected. , the generation of the n-th Deso signal measures the bathing time each time until the detection of the last bath time data tv _n stored in the storage means old bathing time data tv _n -pre,
Bathing time data the measured this time and the current bathing time data _tv n -now, as one or more real number _{N, tv n = (tv n} -pre × N + tv n -now) / (N + 1), the obtained data tv _n is stored in the storage means again as previous bathing time data tv _n for each bathing cycle n for the next automatic control mode, and the previous bathing time is recorded for each bathing cycle n. If the generation of the bath signal is not detected after the time of α times the data tv _n or the time of adding β time to the previous bathing time data tv _n has passed, the main controller We also propose a method of issuing a bathing warning signal for a long time.

This is also shown in the flow chart of FIG.
Growls That is, step 115 in FIGS.
After, i.e., a total of i times of bathing
After setting the temperature change by temperature automatic change or user is made,
Originally, the step 106 in FIG. 3 or the steps in FIGS.
Last bath read from the corresponding storage area at step 302
Output before the time that is not much different from the time data tv _n
Tank detection step 704 (this is the flowchart shown in FIG. 3)
4 which can be incorporated as a modified example of FIG.
Decision step 201 or the decision step in FIGS.
It should be detected in (equivalent to 304). That
If so, until the time when the tank is detected
Time measurement start point (step 105 in FIGS. 3, 5, and 6)
This time of bathing time data _tv n -now the elapsed time from the
And then, the last time bathing time data tv _n old bathing time data t
v _n -pre seeking a new tv _n accordance with the above calculation formula as
(Step 706), which causes the corresponding storage area
Renewably the bathing time data tv _n the previous stored in the
(Step 707). On the other hand, no tank detection
Without being, for the bathing time data tv _n the previous α times
Time has passed, or the time after adding the predetermined time β has elapsed
If so, the main control unit makes a decision to that effect at decision step 701.
When it detects and issues an alarm (step 702),
The dynamic control mode is forcibly ended (step 703).

[0052]

Per Example of Embodiment of the present invention, anew be described immediately in Figures 1 and 3 to 10, as a premise, the apparatus system as a hardware to which the present invention can be applied is basically already in FIG. It is assumed that the explanation is made in accordance with 2. Therefore, in this section, re-explanation of the entire system will be omitted, and what is necessary for realizing the present invention will be appropriately extracted and incorporated from the already-described contents. The same applies to the reference numerals in FIG.
However, in this embodiment of the present invention, the operation start instructing means 41 and the individual designating means 42 are arranged on the operation panel surface of the bathroom remote controller 40 of the existing system in an appropriate arrangement that can be operated by the user.
An entry / exit tank informing means 45 is added. However, each operation described later corresponding to these operations can be respectively realized by software-like processing for the microcomputer 23 incorporated in the recent automatic hot water supply system.

When a user "A" takes a bath, he or she first operates the individual designating means 42 to determine an operation button dedicated to himself and press it, or by operating a plurality of numeric keys or symbol keys. , The personal identification number or symbol string, so-called PIN code (single digit or multiple digits; it may be PIN code form such as registering a name in katakana or alphabet) and inputting this, microcomputer 23 is informed that the user is a specific individual (step 601: in FIG. 9 and thereafter, FIG. 9: 601
Shorthand notation) . As a result, the memory learning unit 24 is used in the subsequent operations.
The storage area group that is referred to or rewritten in is for the "A" user (FIG. 9: 602) . The personal setting means 42 may be a group of keys to which different figures are attached in consideration of use by children. next,
The “A” user operates the operation start instruction means 41. The operation start instructing means 41 may be a switch means described as so-called "fully automatic", but after this operation, the automatic hot water supply system shown in FIG. 2 enters the automatic control mode.
(FIGS. 3, 5, and 6: 101) Again, the operation start instruction means 4
1 is manually operated to end the automatic control mode (that is, the fully automatic switch is operated by the user),
Alternatively, until it is detected that an operation end instruction means (not shown) provided separately is operated (FIG. 3, 6: 116,
118; FIG. 5: 116, 118, 312; FIG. 7, 8: 1
16) The automatic control mode continues.

However, in the automatic hot water supply system shown in FIG. 1, when the operation start instruction means 41 is operated, the microcomputer 23 instructs the operation control section 22 to fill the bathtub 19 by the above-mentioned water filling mechanism. Command hot water operation
(FIGS. 3, 5, and 6: 102) As a result, the temperature K _o corresponding to the set temperature data Ks _o stored in the predetermined storage area of the memory learning unit 24 is eventually obtained in the bathtub 19 as well. Hot water up to the water level W _o corresponding to the set water level data Ws _o stored in the storage means is poured, and further, if necessary,
The above-described initial auxiliary reheating operation is also performed, and the hot water in the bathtub is boiled (FIGS. 3, 5, 6: 103) .
This is the time point shown as "completion of automatic filling" in FIG. However, there is no stored data regarding the set temperature and the set water level in the memory learning unit 24 only at the start of the first automatic control mode after the commercial power supply is first turned on in the illustrated automatic hot water supply system. Regarding this first time, for example, before operating the operation start instructing means 41, whether the "A"user's favorite value is input through the temperature setting means 43 and the water level setting means 44 attached to the remote controller 40. or using a not-shown nonvolatile memory, the standard value (e.g., temperature 42 ° C., the standard water level) previously set the set the set temperature data stored at the time of turn-on of the commercial power supply to the nonvolatile memory level data Memory learning unit 2
Alternatively, the data may be transferred to the storage unit in the memory 4.

The temperature may be set in units of 1 ° C. or several ° C., high, medium, low, etc.
You can specify the temperature range as a rough guide,
In the latter case, the control system including the microcomputer 23 may be programmed with a specific temperature as a set temperature for each temperature range. Regarding the setting of the water level, similarly, the concrete height may be designated, or similarly, the appropriately assigned water level stage or water level may be designated. For these, various methods already proposed can be adopted.

As will become apparent later, the following description
Since it can be applied to the automatic control mode for the first time after the power is first turned on to the hot water supply system, the automatic control mode has already been entered last time, and a predetermined memory area in the memory learning unit 24 has already been entered. or in the memory slot, it is assumed that the last setting temperature data Ks _o and previous setting level data Ws _o are stored after the automatic hot water filling completion of the "a" user actually tub 19 In this case, in this embodiment, this is automatically discriminated (FIG. 3,
5, 6: 104) . That is, as shown in FIG. 2 as “inlet”, when a person enters the bathtub 19, a water level change ΔW is generated in the ascending direction, which can be captured by the water level sensor 15. Specifically, while the stirring pump 11 in FIG. 2 is stopped, the output of the water level sensor 15 is set to A
The binary value obtained by the D / D conversion is, for example, 0.
When a change in water level change resolution of about 5 cm indicates a water level rise of 8 bits or more, and after the change occurs, a stable state of less than ± 8 bits continues for a predetermined time, for example, about 10 seconds. , It is possible to determine that the tank is entered by generating a tank entry signal and capturing the signal by the microcomputer 23. If it is not a special shape but a normal bathtub shape,
Even if the shapes and volumes are slightly different, the water level rises by 5 cm or more when there is a bath, so the above specific example is rational. On the contrary, when the pump 11 for stirring is stopped, the converted A / D output of the water level sensor shows a change representing a water level drop of 8 bits or more, and after the fluctuation occurs,
Similarly, for example, if the stable state of less than ± 8 bits continues for about 10 seconds, it can be determined that the tank is out.
(FIG. 4: 201; FIG. 5, 6: 304, 309; FIG. 8: 3
04; FIG. 10: 704) . However, instead of the generation of the entry signal or the exit signal by such automatic determination,
As shown in FIG. 2, the bathroom remote controller 40 may be provided with an entrance / exit tank informing means 45, and a user may manually operate it to generate an entrance signal or an exit signal.

In any case, when the tank entry signal is given to the microcomputer 23, the control system including the microcomputer 23 starts measuring the time thereafter (see FIGS. 3, 5, 6: 1).
05), bathers "A" by a manual operation of the temperature setting means 43 in Iriso, if you change the set temperature to the new set temperature Ks ₁ is a temperature higher than that from Ks _o up to it, the main control The device 21 operates the mechanism system including the heat exchanger 12 for additional heating by the additional heating function already described with reference to FIG. 2, and changes the hot water temperature in the tank to the hot water temperature K corresponding to the new set temperature Ks _1. Boil to ₁ . Unlike the case shown,
In the case where the new set temperature Ks ₁ is lower than the previous set temperature Ks _o and the automatic hot water supply system also has the above-described hot water filling function as assumed in this embodiment. , The main controller 21 operates the hot water filling function,
The bath temperature K _{1 corresponds} to the new set temperature Ks ₁
Decrease to ₁ . In the case of applying the present invention to a model having no bathing function, naturally, attention is paid only to the change of the set temperature toward the higher direction.

[0058] Basically, while performing the operation of the mechanical system, microcontrollers 23 whereas memory learning section 24 of the accessory in accordance with the present invention, in a dedicated memory area corresponding to the designated individual designation means 42, As the data group relating to the first set temperature change, the elapsed time tc ₁ from the time when the bath is detected until the above set temperature change occurs (as described above, this elapsed time data is
Tat _1-now ) and the changed set temperature Ks ₁ (similarly to the set temperature data Ks of this time).
_1-now ) , the result according to the following promise is used as the previous elapsed time data tc ₁ and the previously set temperature data Ks ₁ used in the next automatic control mode.
Remember each.

First, if there is no first set temperature change corresponding to the above under the previous automatic control mode,
That is, when the set temperature change at that time is the first set temperature change operation after the first bath entry detection in the first automatic control mode after the power is first turned on to the automatic hot water supply system. In the above, the elapsed time and the changed set temperature are newly stored in the storage learning unit 24 as the previous elapsed time data tc ₁ and the previous set temperature data Ks ₁ for the next automatic control mode.

On the other hand, in the previous automatic control mode, there is a change in the set temperature corresponding to the first time after the end of the automatic filling, and the memory learning unit 24 has already set the previous elapsed time data tc ₁ and the previous set temperature data. When Ks ₁ is stored and the set temperature is changed by the user while the time corresponding to the previous elapsed time data tc ₁ is not interrupted (FIGS. 3, 5, 6: 108, 109), the stored previous elapsed time data tc ₁ is replaced with the old elapsed time data tc.
_1- pre, the previously set temperature data Ks ₁ is the old set temperature data Ks ₁ -pre, and the elapsed time data detected this time and the changed set temperature data are detected time data tc ₁ -now and changed set temperature data Ks, respectively. _1-now
And K and L are real numbers of 1 or more, respectively, Ks ₁ = (Ks ₁ −pre × k + Ks ₁ −now) / (K + 1), tc ₁ = (tc ₁ −pre × L + tc ₁ −now) / (L + 1) ) The data tc ₁ and Ks ₁ obtained by the following equation are stored again in the memory learning unit 24 as the previous elapsed time data tc ₁ and the previous set temperature data Ks ₁ for the next automatic control mode (FIG. 3). : 110, 111, 112;
5, 6: 110, 111, 303). In other words, the already stored data _tc 1, Ks ₁ of conventional Ru rewritten in data according to the arithmetic expression.

The data updated in this way is stored at the time when the stored previous elapsed time data tc ₁ has passed after the bath entry detection described above under the next automatic control mode. According to the previously set temperature data Ks ₁ , it is used to change and control the hot water temperature K ₁ in the bath to the temperature corresponding to the set temperature Ks ₁ by the already-described reheating function or hot water filling function of the hot water supply system (FIG. 3, FIG. 5,
6: 113). Conversely, prior to Toyogi the previous elapsed time data tc _1, in cases where a first set temperature changing Ri arrows (Figure 3, 5, 6: 108, 109), the next automatic Even in the control mode, after performing the same arithmetic processing as described above, the data tc ₁ and Ks ₁ in the predetermined memory area in the memory learning unit 24 are rewritten by the newly calculated data group (FIG. 3: 110, 110). 111, 112; FIG.
5, 6: 110, 111, 303) .

After the above, when the bather "A" has passed the second elapsed time tc ₂ from the bathing detection time, the set temperature is changed again, and the set temperature is changed to the previous set temperature. When a new set temperature Ks ₂ is changed to a new set temperature Ks ₂ , the microcomputer 23 performs the same processing as the above-described _first change operation to the set temperature Ks _1, and the hot water in the bath is set to the set temperature via the operation control unit 22. water temperature _{K 2} corresponding to the temperature Ks ₂
On the other hand, according to each of the cases or conditions described above, and if necessary, the data update processing is also performed for the second change of the set temperature according to the above-described arithmetic expression, and the attached memory learning unit 24 On the other hand, the previous elapsed time data tc ₂ and the previous set temperature data Ks regarding the second set temperature change for use in the next automatic control mode in the dedicated storage area according to the designation of the individual designation means 42. ₂ and ₂ are stored again as new calculation data.

As is apparent, in view of the storage capacity of the memory learning unit 24 attached to the microcomputer 23 or provided separately, as long as the capacity permits, although not shown in FIG. Similar processing can be performed for the temperature change. Therefore, if i is an integer greater than or equal to 1 and it is rewritten into a general formula for the i-th set temperature change, the above equations become the following (1) and (2). _{Ks i = (Ks i -pre ×} k + Ks i -now) / (K + 1) ...... ... (1) tc i = (tc i -pre × L + tc i -now) / (L + 1) ...... ... (2) here As a result of the experiment by the present applicant, the weight K for temperature is suitable to be 3, and the weight L for time is to be suitable. However, of course, this is not the restrictive,
It's a matter of design. However, the point is that it is desirable that when the set temperature is changed last time, the change amount is slightly smaller than the value that the user changed the set temperature two times before. This is because that is often the case when the user actually feels more comfortable the next time he / she takes a bath (in other words, the user's setting change is too large at that time), and it is seasonal. This is because it can better follow even a large temperature change.

[0064] Further, for the initial set temperature Ks _o when performing first automatic water filling can be made the same handling and set temperature change in the above Iriso. That is, when the set temperature Ks _o on the basis of the operation of the temperature setter 43 before operating the operation start instruction means 41 is changed, the temperature K _o boiling for that time be subject to the changed setting temperature Also, in consideration of the previously set initial temperature data, the result of performing the weighted averaging process according to the above formula (1) is stored in the memory learning unit 24, and the automatic filling after the next automatic control mode start is stored again. If there is no instruction to change the set temperature Ks _o, the stored previous set temperature Ks _o is set as the set temperature data K during the automatic filling.
It can be used as a s _o. This may be thought of as a case where the value of i is zero, except that it is not accompanied by the elapsed time data after entering the tank.

However, as shown in FIG. 1 as "outlet", when the user leaves the bathtub 19, the automatic hot water supply system of this embodiment uses the water level sensor 15 for the reasons already described. The bath is automatically detected based on the detection of the water level change decrease ΔW. When the automatic detection function is not provided, the user operates the entering / leaving tank informing means 45, and thereby the tank outgoing signal is generated. In any case, when the bath signal is generated, the microcomputer 23 finishes the time measurement that has started after the bath is started, and detects the actual bath time tv _{1 in} which the "A" user was immersed in the bath 19. Do
(FIG. 10: 704, 705) . This bathing time data tv
₁ is used to drive the alarm means 46 in some cases, as will be described later, but as another operation, the microcomputer 23, based on the output of the water level sensor 15, outputs the water level Wx in the tank after leaving the tank. Is detected (FIG. 4: 201, 202) . And the set water level W used at the time of the initial automatic water filling
The s _o the old setting level data _Ws o -pre, as one or more real number M, the _{Ws o = (Ws o -pre ×} M + Wx) / (M + 1) obtained by ......... (3) data Ws _o, again stored as the set water level data Ws _o when the automatic water filling for the next control mode (Fig. 4: 203 and 204). However, the data Wx at this time may be replaced with the water level data in the tank after the final discharge of the tank when the automatic control mode ends, as indicated by the symbol (Wx) in the right hand in FIG. good.

Further, regarding the change of the set water level, the set water level is changed after the start of the previous entry of the tank in the next automatic control mode without storing the elapsed time data after the entry of the tank is detected. Even if the time corresponding to the elapsed time has elapsed, the operation of changing the set water level is not automatically performed there. For general to set water level change is now sufficient, at most, relates set water level Ws _o used during automatic hot water filling under the next control mode, sufficient The underbarrel learning memory function as described above. However, as is clear from the processing according to the present invention regarding the change of the set temperature described above, if necessary, automatic processing is also performed for the change of the set water level in the middle of the time from the start of entering the tank to the exit of the tank to detect the entry of the tank. Based on the elapsed time data up to the change of the set water level afterwards and the changed set water level data, the calculation processing according to the above equations (1) and (2) (parameter Ks _i in the above equation (1) is related to the water level). parameters replaced by Ws _i) of by storing the result in memory and learning unit 24 can also carry out Iriso since the start automatic setting water level changes after a predetermined time under the next automatic control mode. It should be noted that the coefficient M in the above equation (3) regarding this water level was appropriately set to 3 in the experiment by the applicant. Figure 1
In, as shown as "set water level change", to set the water level Ws _o so far, even if the to the change operation of the set water level Ws ₁ by operating the water level setting means 44, it as it is, from the initial setting level Ws _o be used under the next automatic control mode, the change amount is more compressed in accordance with the coefficient, more practical results.

Further, regarding the first bathing from the time when the first bathing signal is output until the time when the first bathing signal is output, the measured bathing time tv _{1 at} that time is the memory learning unit. If the time data corresponding to the bathing time data is already stored in 24, it is stored as the old bathing time data t.
v ₁ -pre, the time data tv ₁ measured this time is set as the current bathing time data tv ₁ -now, and calculation according to a calculation formula tv ₁ = (tv ₁ -pre × N + tv ₁ -now) / (N + 1) And the bathing time data tv ₁ obtained thereby are stored again in the corresponding memory area of the memory learning unit 24 as bathing time data tv ₁ regarding the first bathing under the next control mode (Fig.
10: 706, 707 ) , on the other hand, when the bath time tv ₁ already stored this time has passed α times, and the bath signal is not generated, the microcomputer 23 is turned on. operation control unit 22 which includes or is an alarm sound from the alarm unit 46, or to an alarm light (Fig. 1
0: 701, 702). This is particularly intended to deal with accidents during bathing, such as the elderly, when the bathing time you think that the unusually long compared to the usual bathing time by detecting microcomputer 23, was promptly so that can inform this fact to the family It is a thing. Therefore, it is preferable that the alarm means 46 be attached to a remote controller provided in a living room or the like other than the bathroom. Further, the above-mentioned α is not limited, but is 1.
It was set to 66. However, it is also possible to configure such that an alarm is issued when bathing for a long time is recognized for a predetermined time β, not as a ratio of time. Further, the value of N was suitably about 9 experimentally.

Next, in this embodiment, already in accordance with FIG.
As described above, even if the "A" user has once exited the bathtub 19, for example, after entering the bathtub for the second time after washing the body, the user enters the bathtub for the first time. The same control as in the subsequent steps is performed. That is, when the microcomputer 23 detects the entry of the tank again (104 in FIG. 5) , the time measurement starts again from here. This time starting point is
In FIG. 1, it is the time when it is described as “inlet (second time)”. Then, after that, when the time tc ₁ has elapsed after the second bath entry, when the user operates the temperature setting means 43 to change the first set temperature, the setting is reset at this time. Even with respect to the set temperature Ks ₁ set, the operation control unit 22 causes the automatic hot water supply system to reheat or fill the hot water so that the actual hot water temperature K _{1 in} the bath satisfies the set temperature K ₁ Is lower than that of the above formulas (1) and (2), while the required function causes a hot water filling function), as in the case of changing the first set temperature during the first bathing as described above. The result of the calculation according to is stored again in the corresponding storage area in the memory learning unit 24 as the previous elapsed time data tc ₁ and the previous set temperature data Ks ₁ after the start of the second bathing. Then, this stored data pair is effectively used in the next automatic control mode, and after the second tank entry detection, before the time corresponding to the stored previous elapsed time data tc ₁ has elapsed, When the user has not changed the set temperature again, when the time corresponding to the previous elapsed time data tc ₁ has been measured, it is specified by the previous set temperature data Ks ₁ stored by the operation control unit 22. Temperature K
_It is used to control the bath temperature up to ₁ .

Further, although shown only once in FIG. 1, the learning and storing operation described above can be applied to each of the plurality of i times of changing the set temperature even during the second bathing. . Further, regarding this second bath as well, the bathing time tv ₂ from the bathing to the bathing is measured, and the measured bathing time tv _{2 at} that time is already stored in the memory learning unit 24 as the bathing time data. If the time data corresponding to is stored, it is stored as the old bathing time data t.
v ₂ -pre, the time data tv ₂ measured this time is set as the bathing time data tv ₂ -now at this time, and an operation according to an operation formula of tv ₂ = (tv ₂ -pre × N + tv ₂ -now) / (N + 1) is performed. None, the bathing time data tv ₂ obtained thereby is re-stored in the corresponding memory area of the memory learning unit 24 as the bathing time data tv ₂ regarding the second bathing under the next control mode, and is already stored. With respect to the bathing time tv ₂ that has been performed, α times the time has elapsed, or the predetermined time β has been exceeded, and
When the tank output signal is not generated, the operation control unit 22 including the microcomputer 23 causes the alarm means 46 to emit an alarm sound or an alarm light. Therefore, n is 1
Generalizing the above integer relates each of the n-th bathing, the previous bath time data stored in the memory learning unit 24 old bathing time data tv _n -pre, the current measured time data tv _n This time bathing time data tv _n- n
As ow, the arithmetic _{expression, tv n = (tv n -pre} × N + tv n -now) / (N + 1) ... can be rewritten as ... (4).

Further, it is obvious that all of the above learning and storing operations can be applied to the i-th set temperature changing operation after the bath entry detection in each of the n total bathing times. On the contrary, if the number of baths is increased or the set temperature is changed a lot, or if the number of individuals that can be designated by the individual designation means is large, as will be described later, the memory learning unit This requires a large-capacity memory space for 24, which may make it difficult to provide the automatic hot water supply system at a reasonable price. In such a case, we have already explained with reference to FIG.
As described above, only for the first and last bathing, the pair of elapsed time data and set temperature data is limited to be learned and stored, and similarly, it has already been described with reference to FIGS.
As described above , even during each bathing, it is possible to limit the learning and storing only the elapsed time data and the set temperature data pair associated with the first and last set temperature changing operations.

Generally speaking, m is an integer not less than 3 and not more than n, and is calculated and stored according to the above formulas (1) and (2) in association with the (m-1) th entry of the tank. previous elapsed time data tc i for the next automatic control _mode, the previous setting temperature data Ks _i are all the m-th with the inlet tank Motomechi been previous elapsed time data tc _i, the previous setting temperature data Ks rewrite by _i , and if necessary, j
Is an integer greater than or equal to 3 and less than or equal to i, for the next automatic control mode stored in the storage means, which is obtained by the above equations (1) and (2) based on the (j-1) th set temperature change. The previous elapsed time data tc _i and the previous set temperature data Ks _i are all the previous elapsed time data tc _i and the previous setting obtained by the above equations (1) and (2) based on the jth set temperature change. It means that it may be rewritten according to the temperature data Ks _i . According to this condition, as described above, when only the data group regarding the bathing of the last time is stored in addition to the first time, the set temperature of the last time is changed in addition to the first time even during each bathing. This includes not only the case of memorizing the learning result associated with the operation but also the case of memorizing a data group regarding one or more designated bathings in addition to the first time.
In addition to the first time during each bathing, the case where the above-mentioned learning and memory function is exerted with respect to the designated temperature changing operation specified once or a plurality of times is included. However, according to the experiment, it is sufficiently practical to store the data of the first time and the data of the last time.

In the case of the model shown in FIG. 1, the second
The case where the user performs a manual reheating operation during the second bath entry is also illustrated. As a result, of course, the bath temperature Kx also rises until the manual heating is stopped, but this is not particularly learned and stored. Manual reheating is more convenient because it is more convenient to leave it to the preference of the user at that time.

However, n times in total (two times in the illustrated case)
When the "A" user leaves the bathroom after entering the bath,
The operation start instruction means or the "fully automatic" switch 41 is operated again, or a dedicated operation end instruction means (not shown) is operated. As a result, the operation control unit 22 including the microcomputer 23 ends this automatic control mode. In the present embodiment, the termination of the automatic control mode is executed even when an operation of designating another individual is performed by the operation of the individual designating means 42, but at the same time, the newly designated personal data is again defined. Enter the automatic control mode according to. Here, if the newly designated user is the “B” user, the main control device 21 including the microcomputer 23 will be hereafter dedicated to the “B” user in the memory learning unit 24. Only the memory area is selected as valid and the same processing as already described for the "A" user is performed (Fig. 3).
-10) . That is, in this embodiment of the present invention, the previously elapsed time data tc _i and the previously set temperature data Ks described above are used.
A storage area group for storing _i , a storage area group for storing the set water level data Ws _o , and the bathing time data tv _n are provided in a plurality of sets, the same number as the number of individuals that can be designated, and for each automatic control mode. In addition, the corresponding one set is selected from the plurality of sets of storage area groups by the selection operation of the individual designating means before the generation of the bathing signal. Of course, in the above, only the two cases of "A" and "B" have been described, but as long as the memory capacity permits, it can be expanded to as many people as necessary.

The preferred embodiment of the present invention has been described above. For example, the temperature sensor 20 (FIG. 2) provided in the bathroom 30, the outside air temperature sensor (not shown), or the water supply temperature sensor 7 (FIG. Based on the temperature information outside the bathtub 19 obtained from 2), the set temperature data group that is learned and stored can be automatically corrected and relearned regardless of the user's operation. In this way, the user does not need to urge the memory learning unit 24 to re-learn by intentionally changing the set temperature even when the season or the external temperature environment changes, and the automatic learning is performed. It is possible to control the hot water temperature over time, which is close to the user's desire.

[0075]

According to the present invention, the chance of having to operate the remote controller installed in the bathroom while taking a bath is reduced,
Yet, it is possible to provide control over time close to the user's preference. If the desired temporal control is instructed under the previous automatic control mode, it is possible to change the temporal control with appropriate correction to the previous temporal control without giving a change instruction every time when bathing. You can control. Therefore, it is not necessary for the user to remember various data, and even children and the elderly can enjoy the benefits of the present invention.

Further, even if the user arbitrarily changes the set temperature and the like even if the temperature or the fluctuation of the outside temperature changes several times per season, the change should be at least several days. Since the data can be commonly used for several to several weeks, it is possible to obtain a generally appropriate temporal water temperature control throughout the season. Compared to the time and effort required to set up such data groups each time you bathe, this is a difference in the mud.

From the above, the automatic hot water supply system to which the method of the present invention is applied becomes a competitive product with high added value even in the market.

[Brief description of drawings]

FIG. 1 is an explanatory diagram illustrating an embodiment of a method for controlling an automatic hot water supply system over time according to the present invention.

FIG. 2 is a schematic configuration diagram of an example of an automatic water heater or an automatic water heater system applicable to the method of the present invention.

FIG. 3 is a flowchart corresponding to claim 1 of the present application .
It

FIG. 4 is an explanatory diagram of a step group related to claim 4 of the present application.
is there.

FIG. 5 is a flowchart corresponding to claim 9 of the present application .
It

FIG. 6 is a flowchart corresponding to claim 10 of the present application .
It

FIG. 7 is related to claim 11 and is shown in FIG.
It is explanatory drawing about the modified part of a flowchart.

FIG. 8 is related to claim 11 of the present application and is shown in FIGS.
It is an explanatory diagram about the modified part of the flowchart shown
is there.

FIG. 9 is an explanatory diagram of a step group related to claim 12 of the present application.
It is.

FIG. 10 is an explanation of a group of steps related to claim 13 of the present application .
FIG.

[Explanation of symbols]

 1 Hot Water Tap 2 Switching Solenoid Valve 3 Hot Water Temperature Sensor 4 Hot Water Heat Exchanger 5 Burner 7 Water Supply Temperature Sensor 8 Flow Rate Sensor 9 Proportional Valve 10 Hot Water Supply Side Solenoid Valve 11 Pump 12 Heater Heat Exchanger 13 Original Solenoid Valve 14 Solenoid valve for cooking side 15 Water level sensor or pressure sensor 16 Burner 18 Bath water temperature sensor 19 Bathtub 20 Bathroom temperature sensor 21 Controller 22 Operation control unit 23 Microcomputer 30 Bathroom 40 Remote controller 41 in the bathroom Start instruction means 42 Individual designation means 43 Temperature setting means 44 Water level setting means 46 Alarm means

Claims (13)

[Claims] 1. With the start of the automatic control mode, under the command of the main control unit, the set temperature corresponding to the set temperature data Ks _o and the set water level data Ws _o stored in the storage means is reached up to the set water level. With an automatic filling function that fills the bathtub with hot water,
Until the automatic control mode ends even after the automatic filling is completed, the main controller controls the automatic hot water supply system with the function of controlling the temperature of the hot water in the tank so as to satisfy the set temperature set at each time. After the completion of the above automatic water filling for each automatic control mode,
The measurement of time is started from the time when the main controller detects the generation of the bathing signal; i is an integer of 1 or more, and the i-th set temperature change operation is performed by the user after the start of the time measurement. When the change operation is performed, the elapsed time up to the time when the change operation is performed and the changed set temperature are detected; there is a set temperature change corresponding to the i-th time after the previous end of the automatic water filling, and the storage means If the previous elapsed time data tc _i and the previous set temperature data Ks _i are stored in the table, and the previous elapsed time data tc _i has not yet been passed, the previous elapsed time data tc _i Time data tc _i -pre, the previously set temperature data Ks _i
Was the old set temperature data _Ks i -pre, the currently detected elapsed time data and changed set temperature data each detection time data _tc i -now, as a change set temperature data _Ks i -now, K, and L One or more each
A real number, and data tc _i obtained by an operational expression Ks _i = (Ks _i −pre × k + Ks _i −now) / (K + 1), tc _i = (tc _i −pre × L + tc _i −now) / (L + 1) Ks _i is stored again in the storage means as the previous elapsed time data tc _i and the previous set temperature data Ks _i for the next automatic control mode, respectively; under the next automatic control mode, the time measurement is started. After that, when the time indicated by the previous elapsed time data tc _i stored in the storage means has elapsed, the main controller is operated to reach the set temperature indicated by the previous set temperature data Ks _i . Controlling so as to change the bath temperature in the bath; 2. A way of claim 1; upper fill tank signal may be generated by the operation of Iriso notification means by the user; how you characterized. 3. A way of claim 1; upper fill tank signal may be generated based on the detection of the water level change in the water level sensor for detecting a water level in the tub; you wherein mETHODS. 4. A way of claim 1, 2 or 3; in each time automatic control mode, when detecting the occurrence of Deso signals the main control device to notify Deso, detecting the bathtub water level Wx of the time; the set was used under the automatic control mode of the current during the automatic water filling level data Ws _o the old set water level data Ws
and _o -pre, as one or more real number M, _Ws o ₌ a (Ws o -pre × M + Wx ) / (M + 1) obtained by the data Ws _o, set at the time of the automatic hot water filling for the next control mode It is re-stored as the water level data Ws _o; how you characterized. 5. A way of claim 4; said Deso signal shall be generated by the operation of Deso notification means by the user; how you characterized. 6. A way of claim 4; said Deso signal being generated based on the detection of the water level change in the water level sensor for detecting a water level in the tub; you wherein mETHODS. 7. The way according to claim 2, 3, 4, 5 or 6; until after the automatic water filling also complete automatic control mode ends, settings that are set from time to time The function of controlling the temperature of hot water in the bath so as to satisfy the temperature is a function of performing reheating when the temperature of hot water in the bath is low with respect to the set temperature given at that time; It shall be limited to the changing operation changing operation to a previous temperature higher than the set temperature; how you characterized. 8. The way according to claim 2, 3, 4, 5 or 6; after the automatic water filling also complete automatic control mode until the end
To meet the set temperature that is set at that time.
The function to control the temperature of hot water in the bath is given from time to time.
A machine that reheats when the bath temperature is lower than the set temperature
And ability, be a hot water filling ability to supply water which is not heated to the bathtub when cistern indoor bath temperature is high; the i-th set temperature change operation, against the said change operation previously set temperature, high change operation to low either direction to be tolerated; how you characterized. 9. A way of claim 7 or 8; n as an integer of 1 or more, after the automatic water filling completion, the main control device Starts the time measurement each time it detects the occurrence of the nth bathing signal; i is an integer of 1 or more, and after the start of the time measurement accompanying the nth bathing, the user starts the i When the set temperature changing operation is performed a second time, the elapsed time until the change operation is performed and the changed set temperature are detected; There is a change in the set temperature corresponding to the i-th time during the time measurement, and the previous elapsed time data tc _i ,
When the previous set temperature data Ks _i is stored and the previous elapsed time data tc _i has not been lost, the previous elapsed time data tc _i is replaced with the old elapsed time data t.
c _i -pre, the previous setting temperature data Ks _i and old set temperature data _Ks i -pre, the currently detected elapsed time data and changed set temperature data each detection time data _tc i -now, change settings Temperature data Ks _i
As -now, K, L and the one or more real _{respectively, Ks i = (Ks i -pre} × k + Ks i -now) / (K + 1), tc i = (tc i -pre × L + tc i -now) / ( L + 1) data tc _i and Ks _i are stored as the previous elapsed time data tc _i and the previously set temperature data Ks _i during the time measurement of the n-th bath entry for the next automatic control mode, respectively. re-stored in the device; above in the next under the automatic control mode, the after the start of the n-th input vat associated time measurement, the time indicated by the previous elapsed time data tc _i stored in the said memory means upon expiration of the, by the main controller to the set temperature indicated by the last setting temperature data Ks _i, be controlled so as to change the tank indoor bath temperature; How it said. 10. A way of claim 9; and with 3 or more and the n following integer m, in association with the inlet tank of the m-1 th is calculated by the above arithmetic expression, stored the previous elapsed time data tc i for the next automatic control _mode, the previous setting temperature data Ks _i are all the m-th previous elapsed time data tc i obtained with the entrance _vessel, the previous setting temperature data It is rewritten by Ks _i; how you said. 11. Claims 1, 2, 3, 4, 5, 6, 7,
A way according to 8, 9 or 10; and at least 3 and the i following integer j, obtained by the arithmetic expression based on the j-1 th set temperature change, stored in said storage means The previous elapsed time data tc _i and the previously set temperature data K for the next automatic control mode
s _i are all be rewritten by the j-th set temperature change based the previous elapsed time data tc i obtained by the above arithmetic _expression, the previous setting temperature data Ks _i; how you characterized. 12. The method according to claim 1, 2, 3, 4, 5, 6, 7,
8,9.10 or a way according to 11; the previous elapsed time data tc _i, a storage area group for storing the previous setting temperature data Ks _i a plurality of sets; for each automatic control mode of the each time by selecting operation of individual designation means in a previous generation of the upper fill tank signal, among the sets of storage area groups plurality, selecting a corresponding set; how you characterized. 13. The method according to claim 1, 2, 3, 4, 5, 6, 7,
How a according to 8, 9, 10, 11 or 12; an integer of 1 or more n, after the automatic water filling completion, the main control unit detects the occurrence of the n-th Iriso signal The bathing time is measured for each time until the time measurement is started for each time and the generation of the n-th bath signal is detected; and the previous bathing time data for each time after the end of the previous automatic water filling. If the tv _n has been stored, the previous bath time data tv _n old bathing time data _tv n -pre,
Said the current measured bathing time data and current bathing time data _tv n -now, as one or more real number _{N, tv n = (tv n} -pre × N + tv n = now) / (N + 1), was determined by the data tv _n is re-stored in the storage means as the previous bathing time data tv _n for each time for the next automatic control mode; and, for each time, a time α times the previous bathing time data tv _n Or, if the generation of the bathing signal is not detected after the time of adding β time to the previous bathing time data tv _n has elapsed, the main controller issues a long-time bathing warning signal. it; how you said.