JPH0547072U - Automatic water supply controller for toilet - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide an automatic water supply control device for a toilet bowl that can reduce the consumption of electricity and the amount of flush water. [Structure] An electromagnetic valve (32), an intake / water discharge control valve (34), a machine board (36), and a sensing means (4) are provided in a housing (31), and the sensing means (4) is a sensor (40). , The transmitting circuit (41), the receiving circuit (42), the central processing unit (43), and the solenoid valve control circuit (45), and the reception signal by the execution program stored in the central processing unit (43). The solenoid valve (32) through the solenoid valve control circuit (45) to determine the length and shortness of the
Is operated to control the water intake / water discharge control valve (34) to timely perform water discharge / water washing operation before and after use, or to allow continuous water discharge by hand reaction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automatic water supply device for a toilet, and more particularly to an automatic water supply control device for a toilet that can reduce electricity consumption and water consumption.

[0002]

[Prior Art]

 The following are examples of automatic flushing equipment for conventional flush-type urinals. If the user enters the sensor's sensing range, the automatic flushing equipment will automatically perform “pre-draining” before use, pre-wetting with water to prevent excrement from adhering to the inner wall of the bowl, Wait for the user to leave the toilet seat and then perform a “post-flush” to clean and drain the residual waste in the bowl. Therefore, the toilet bowl can be washed and discharged cleanly by the water discharge twice before and after this so that the excrement does not adhere to the inner wall of the bowl. However, it cannot be said that the automatic flushing control method for toilet bowls that can be seen at present is complete, and when using automatic flushing equipment, the following defects are often noticed.

1. Wrong operation often occurs: The conventional automatic water washing equipment easily receives electromagnetic interference noise (EMI), radio interference (RFI), or light source interference (for example, by a fluorescent lamp), and sometimes, The sensor mistakenly senses and causes a washing action. If this incorrect operation is repeated, water will be wasted.

2. Disadvantage of wasting electric power: In the conventional automatic water washing equipment, it is necessary not to shut off the power because it is necessary to keep the washing and discharging water at all times. That is, electricity must be supplied even when it is not in use, and therefore a considerable amount of electricity is wasted over a long period of time. That is, the conventional automatic water washing equipment has a problem in energy saving of the equipment such that the automatic water washing function cannot be maintained unless the battery is replaced occasionally.

3. Overlapping of "pre-water discharge" operation leads to waste of water: as described above, the conventional automatic flushing equipment having the double flushing function before and after the user is connected one after another, Despite the elimination of the need for "pre-water discharge", the "pre-water discharge" performed before the use of the latter person is overlapped immediately after the "post-washing" of the toilet bowl after the use of the former person. Done. Such overlapping operation not only wastes water, but also drains the battery and wastes power.

[0006]

[Problems to be solved by the device]

 SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic water supply control device for a toilet that solves the problems of the conventional automatic water supply device for a toilet and can save electricity consumption and water consumption.

[0007]

[Means for solving problems]

 In order to achieve the above-mentioned object, the present invention has a hollow housing in which a solenoid valve, a water / water discharge control valve, a housing cover, and a sensing means are mounted, and the sensing means includes a sensor, a transmitting circuit, a receiving circuit, A central processing unit and a solenoid valve control circuit are provided, and the central processing unit having an execution program stored therein is set to drive the oscillator circuit to generate a periodic emission signal, and the receiving circuit receives the signal. While inputting to the central processing unit, the solenoid valve control circuit is driven by the output of the central processing unit to open and close the solenoid valve that controls the water flow in and out by connecting the solenoid valve control circuit so as to operate in synchronization with the water intake and discharge control valve. When the central processing unit controls the power of the receiving / transmitting circuit according to the sequence set by the execution program, the receiving / transmitting circuit is suspended. When the power supply is cut off, the transmitting circuit emits the emission signal consisting of the cipher set, and when the receiving circuit receives the perfect cipher set signal, it is input to the central processing unit and the integrity of the cipher set signal is input. And the continuity are confirmed, and the time length of the detection signal is discriminated, and the time length and short time are passed through the solenoid valve control circuit to drive the solenoid valve to control the intake / water discharge control valve. , It is configured to perform water discharge and water washing operations before and after use, or to perform water discharge operation by the approaching motion of the hand.

Then, the central processing unit is set by a parameter of the counter, and when the use interval time of the front and rear users does not exceed the time parameter set in the central processing unit, it is set in advance by the later user. It is advisable not to carry out water discharge. It is also desirable to provide a power detection circuit in the central processing unit so that the external power detection circuit can be activated in a timely manner to detect the power state of the battery. Further, it is possible to receive the water supply signal of the central processing unit, make the transistor provided in the solenoid valve control circuit conductive, and drive the relay to open / close the power source of the solenoid valve. Further, the solenoid valve is formed by a shell, a magnetic force guide means including an induction coil and a permanent magnet, a spring, a driving body, and a water stopper, and when the induction coil is driven by the magnetic force guide means, the water stopper is interlocked. After opening the water passage and driving the driving body by the magnetic force inducing means, it is desirable to temporarily control the position of the driving body by a permanent magnet so that the electric consumption can be reduced.

[0009]

[Action]

 According to the present invention configured as described above, since the emission signal and the reception signal are formed together in the cipher set, the received signal must be completely compatible with it. Moreover, if the signal activation time must exceed 3 seconds, it will not work. Therefore, even if a person simply passes through or receives an interference signal from the outside world, it can be filtered out and not discharged. Then, the transmitting circuit and the receiving circuit consume power only when emitting a signal or receiving a signal, and immediately after the signal is emitted or a signal is received, the power supply is stopped (pause time). (1 second is set), and if the interval between the front and rear users does not exceed 3 minutes, the inner wall of the bowl will still be washed by the post-flush after the previous user leaves. Preliminary water discharge can be omitted because it is determined that the wet state is maintained. Furthermore, it is possible not only to automatically perform the water discharge / wash operation before and after use, but also to make it possible to detect the water by bringing your hand close to it and to continuously discharge water.

The above and other objects, features and advantages of the present invention will be more apparent from the following description of embodiments with reference to the drawings.

[0011]

【Example】

 FIG. 1 is a side view of an example of a toilet equipped with the device of the present invention. As shown in the figure, the automatic water supply control device 3 of the present invention is provided between the toilet 2 and the water supply pipe line 22, and the automatic water supply control device 3 is provided by the sensing means 4 mounted at an appropriate position on the wall surface 1. Detects whether or not the user is on the toilet seat, and immediately when the user leaves the toilet seat, an appropriate amount of cleaning water is ejected into the toilet bowl 2, and the excrement in the toilet bowl 2 is discharged from the outlet 24 together with the fountain. (The description is omitted because it is not a feature of the present invention.) The toilet bowl is kept clean.

FIG. 2 is an exploded perspective view of the automatic water supply control device and the sensing means. As shown, the automatic water supply control device 3 includes a solenoid valve 32, a water discharge control valve 34, and a water discharge control valve 34 in a hollow housing 31. The main member such as the housing cover 36 is provided. As shown in the cross-sectional view of FIG. 3, the solenoid valve 32 has a cylindrical induction coil 321 fitted in a cylindrical shell 320, and a permanent magnet 322 packed in the center hole of the upper end of the induction coil 321 and the permanent magnet 322. It includes a spring 323, a driving body 324 biased downward by a spring 323 vertically inserted into the center guide of the coil 321, and a main part such as a water stopper 325.

In addition, as shown in the solenoid valve actuation diagram of FIG. 4, the induction coil 321 generates magnetic force when driven by conducting electric power, and the driving body 324 receives the action of the magnetic force to cause the driving body 324 to spring 323. Moves upward against the elasticity of. When the driving body 324 moves to the top end, it is attracted to the bottom surface of the permanent magnet 322 by the action of magnetic force, and the water stopper plug 325 therebelow is interlocked to open the water channel between the launch pipe line 326 and the water discharge pipe line 327. Water can be distributed. Since the permanent magnet 322 has a continuous magnetic force action, even if the electric power conducted to the induction coil 321 is stopped, the driving body 324 receives the magnetic force of the permanent magnet 322, It is attached to the bottom surface of the permanent magnet 322 to keep the water channel open. In the case of shutting off the water channel, it is sufficient to supply electric power in the opposite direction, and the magnetic force in the opposite direction is generated to move the driving body 324 downward. As a result, the water stopper plug 325 therebelow blocks the flow of the water channel. Therefore, the solenoid valve 32 only needs to supply the appropriate magnetic force from the induction coil 321 to drive the drive body 324 when the drive body 324 is operated upward or downward, and the drive body 324 is a permanent magnet. It is not necessary to supply electric power to the induction coil 321 while it is adsorbed on the 322 and while it is in the falling position, so that the electric power can be saved.

Further, as shown in the vertical side surfaces of FIGS. 5 and 6, the water intake / exhaust control valve 34 is composed of a main body 340 in which a plug body 341 that moves up and down to control a flowing water passage is installed. When 32 is subjected to the action of magnetic force, water and air in the first space 342 in the main body 340 are discharged from the other end of the solenoid valve 32 by the pipe line 341, so that the plug 345 as shown by the arrow 345 in FIG. The body 341 can open the running water passage. The valve mechanism itself is well known to those skilled in the art and will not be described in detail.

FIG. 7 shows an example of an electric circuit diagram of the sensing means according to the present invention. As shown, the sensing means 4 includes a sensor 40 (for example, an infrared sensor), a transmitting circuit 41, and a receiving circuit 42. , A central processing unit 43 (CPU), a counter 44, a solenoid valve control circuit 45, a battery power detection circuit 47, and the like. Among them, the central processing unit 43 is provided with a logical operation unit (ALU), a memory RAM, a ROM, an input / output port (I / O PORT), etc., and the water discharge / washing operation is executed in advance in the ROM. The program to be stored is stored. The flow chart of the program can be explained with reference to FIGS. 8, 9 and 10, and the description will proceed below with reference to these drawings.

FIG. 8 is a flow chart of the main program in the central processing unit. When the main program is started (START), step SO1 is performed in advance with the parameters (N = 1, C = 0, L = 0, K = in the program). 0) is set, and then the first subprogram (A to B) is jumped (JUMP) and executed.

FIG. 9 is a flow chart of the first sub-program, and referring to FIGS. 7 and 8 together, as shown in the figure, step S 21 of the first sub-program is for the receiving circuit 42 in the sensing means 4. Power up and set parameter D = 3. Step S22 waits for the receiving circuit 42 to enter a stable state with a delay of 1 millisecond, and Step 23 activates the transmitting circuit 41, drives the sensor 40 and outputs a launch signal to the outside world, and the toilet seat It detects whether or not there is a user, and outputs the signal received by the sensor 40 to the receiving circuit 42. The receiving circuit 42 can receive two types of signals from among them. One is a long distance signal C generated when the user is using the toilet seat, and the other is a short distance signal K generated when the user senses the sensor 40 from a short distance by hand. , The difference between the two can be clearly distinguished by the strength of the signal. For example, the long-range signal C has a relatively long distance from launch to arrival, and thus the signal is relatively weak, while the short-range signal K has a relatively short distance from launch to arrival, so the signal is relatively short. strong. Then, the central processing unit 43 determines whether the received signal is strong or weak, and confirms whether it is the long-distance signal C or the short-distance signal K. Then, in step S24, the (IF) parameter C = 1 Alternatively, if (OR) K = 1, it means that the condition is Yes and the signal is received. Then, the process proceeds to step 25 to execute the loop of D = D-1. Therefore, in a situation where the emitted signal is properly received, the emitted signal is continuously generated at a predetermined interval, and the received signal is also continuously generated. Therefore, as shown in FIG. 11, three sets of emission signals and reception signals occur in succession to assemble a set of codes (codes). Further, under the condition of D = 0, the power supplied to the transmitting circuit 41 and the receiving circuit 42 is cut off in step S26 to save the power consumption of the transmitting circuit 41 and the receiving circuit. There is a saving effect of. In this case, there is no effect on the subsequent steps. In step S27, the presence or absence of a short-distance signal (that is, whether K = 1 or not) is determined. If the state is No, the process proceeds to step S30 and the presence or absence of a long-distance signal (that is, whether K = 1 or not). If the result of the determination in step S30 is Yes, then go to step S31 and set N = N. N + 1 is executed, the process returns to the main program and step S02 is carried out. When C = 0, step S04 executes a one second sleep (Sleep 1 see) to return to the start of the main program (START).

As shown in FIG. 8, if the step S02 of the main program inspects the numerical values of the parameters N and C and determines the state of C = 0, it means that there is no user on the toilet seat and it is in an unused state. At this time, in step S04, all operations are paused for 1 second. Therefore, as can be seen from the display of FIG. 11, when there is no user in the D1 stage, the time period of the firing signal interval is 1 sec (1 second), and if N <4 and C = 1 through the above, When it is judged that there is a reception signal, it indicates that a reception signal is being generated. At this time, in order to confirm whether it is merely passing or being used, after delaying for 1 second by step S03 in the main program, the first When the program is returned to sub-programs A and B, and the operations of launching and receiving are repeatedly executed, and if the person simply passed within the sensitive range of the sensor and the existence time within the sensitive range did not exceed 3 seconds. In this case, as in the step D2 shown in FIG. 11, even if there is an emission signal, the reception signal is not perfect and has not been continuously received for 3 seconds or more, so that the washing signal does not occur at this time. Through such a process, the washing operation is not executed in the case of a simple passage of a person.

At the same time, referring to FIGS. 7 and 8, as shown in the figure, when step S02 of the main program judges that N ≧ 4 and C = 1, it is displayed that the user is confirmed (FIG. 1). As shown in D3 of 1), the time is at least 3 seconds or more), step S05 is executed to stop the counter 44, and the contents of the counter 44 are read into the register T, and immediately thereafter, the counter 44 is started. Clear to wait for subsequent readings. When the content read into the register T is judged to be in the step S06 and T ≦ 3 minutes, it is in the No state, and the time interval between the previous use and the current use has already exceeded 3 minutes. At this time, the second sub-programs D to E execute the pre-water discharge operation.

FIG. 10 is a flow chart of the second subprograms D to E, and referring to FIGS. 7, 8 and 9 as well, as shown in the drawing, the steps of the second subprograms D to E are shown. Step S41 activates the power detection circuit 47 to detect the amount of electricity of the battery. The detected amount is stored in the register P, and then the power detection circuit 47 is cut off. A numerical value is inspected, and if P = 0, a power shortage is displayed, and in step S43, a light emitter (for example, an LED) is driven to notify the outside world of a power shortage signal to replace the battery. If P = 1, the solenoid valve 32 is activated to keep the ON state for 40 ms. As can be seen from the solenoid valve control circuit 45 shown in FIG. 7, in order to keep the solenoid valve 32 in the ON state for 40 ms, the transistor Q1 must be controlled by the central processing unit 43 for 40 ms. .. Therefore, the contact of the relay R1 shifts from normally closed (nc) to normally open (no), and the normally open (no) contact of R1 and the normally closed (nc) contact of R2 form a conductive circuit. The induction coil 321 generates magnetic force, and the driving body 324 moves upward and is attracted to the bottom surface of the permanent magnet 322 (as shown in FIG. 4 above). That is, even if the time of 40 ms is exceeded, the solenoid valve 32 still keeps the running water passage open to clean the toilet bowl with water. In step S07 of the main program of FIG. 8, a delay of 2 seconds (2 seconds) is executed. It is displayed that the water washing time at this time is 2 seconds. Then, in step S08, the solenoid valve 32 is cut off, When the valve 32 is cut off, the transistor Q2 (as in FIG. 7) is controlled by the central processing unit 43 to conduct for 40 ms. Therefore, the relay R2 moves its contact from normally closed (nc) to normally open (no), and the normally open (no) contact of R2 and the normally closed (nc) contact of R1 form a conduction circuit. The induction coil 32 generates a reverse magnetic force, and the driving body 324 moves downward and separates from the bottom surface of the permanent magnet 322 (as shown in FIG. 3 above). That is, the electromagnetic valve 32 cuts off the flow of the washing water. Then, as can be seen from the water supply signal in FIG. 11, after confirming that it is used, the solenoid valve 32 immediately opens (ON) for 2 seconds to perform a pre-water discharge action, and the toilet bowl is attached so that excrement does not adhere. Get wet.

Referring to FIG. 8 again, as shown in the figure, after the pre-water discharge operation is performed for 2 seconds, the main program executes the first sub-programs A to B again and waits for a signal that the user leaves the toilet seat. If step S09 determines that the condition of parameter C = 0 is satisfied (that is, the route of Yes), it indicates that the user has already left, and if it determines that the condition of parameter C = 0, After a delay of 1 second, the program moves to the first sub-programs A to B again, and it is checked whether or not the user has left. When the user is away (that is, C = 0), the main program determines the second sub-program. The program D to E is executed and executed (as shown in FIG. 10), the solenoid valve 32 is activated by the relay R1 to perform the post rinsing after the user leaves, and the post rinsing time is set in step S11. Set to 7 seconds (as shown in Fig. 11) ), And finally, in step S12, the relay R2 is driven to shut off the solenoid valve 32, and in step S13, the counter 44 is started to start counting and returns to the state of 1 second of rest, and the main program is restarted. Return to START and repeat the above operation. Among them, the determination in step S06 is Yes if T ≦ 3 min, which means that the interval between the previous user and the next user is less than 3 minutes, and therefore the main program The step S06 is executed by jumping directly to the first sub-programs A to B to omit the pre-water discharge operation and save water and power consumption.

FIG. 11 is a signal state diagram of a possible embodiment of the present invention. As shown by the emission signal and the reception signal in the figure, the emission signal of this embodiment is a set of ciphers. If there is no user (as in step D1) and no signal is received even if the first code of the cipher set is fired, the second code of the cipher set is not fired. By the way, it can be confirmed that there is no user because the first code is not received. On the other hand, in the case of a mere passerby pass (such as D2 stage), even if the signal of the complete code set is received, the code of the second code cannot be completely received, or the time does not reach 3 seconds or more. That is, it means that the passerby has already moved away from the sensitive range, and therefore the water discharge / wash signal is not generated by confirming that the passerby has just passed. Also, when the interference signal is transmitted from the outside into the receiving circuit 42 (as in step D4), the emission signal may emit the second code or the third code of the cipher set from the generation of the interference signal. Such a situation does not occur continuously. That is, since the interference signal and the emission / reception signal of this embodiment are not completely synchronized, the interference signal cannot change the reception signal to the cipher set state. Therefore, the emission signal can recognize the interference signal and continuously. It recovers to the condition that the first code of the cipher set is normally fired without firing the cipher set fire signal. Then, when it is desired to generate the washing signal, it is always judged in step S02 of the main program of the present embodiment that the parameters N ≧ 4 and C = 1, and it is displayed that the user is confirmed (for example, D) If the user stays within the sensitive range of the sensor for 3 seconds or more in 3rd stage), if the user receives the complete 4 consecutive and perfect cipher sets, then the pre-water discharge operation is performed for 2 seconds, and the user After leaving (parameter C = 0), the post-flush operation is further performed for 7 seconds to completely and cleanly remove the fecal urine in the toilet bowl. Also, when the time interval between the previous user and the next user does not reach 3 minutes (as shown in step D5 in the figure), the main program does not execute the pre-water discharge operation. That is, the interval time between the previous post-flush and this pre-flush is close, and the inner wall of the toilet bowl keeps a wet state due to the effect of the previous post-flush, so the previous post-flush is the previous pre-flush. Since it also serves as a water discharge function, the user will leave the user and perform the post-water washing operation again for 7 seconds. Therefore, the pre-water discharge operation will be performed unless the interval between the front and rear users exceeds 3 minutes. Not done, thus saving water and electricity.

Further considering FIG. 9 and referring to FIG. 10, when the user intercepts the sensor 40 with his hand at a short distance (as in FIG. 7), a short reception signal K is generated and the first sub-program of the first sub-program is generated. Step S27 is brought to the Yes state, L = L + 1 is executed in step S28, and it is determined whether or not L is 1 in step S29. If L = 1, the second sub-programs D to E are jumped into and the water discharge operation of the solenoid valve 32 is executed (water discharge signal in FIG. 12). Then, it is determined in step S45 whether L is 0, and if the hand moves out of the sensitive range of the sensor 40, L ≠ 0 after executing step S28, so step 33 is NO. Under this condition, step 34 is continuously executed, a water discharge cutoff signal of the solenoid valve 32 is generated, and step 35 sets the condition of L = 0. Therefore, when the user brings his or her hand close to the sensor 40 at a short distance, a water discharge action occurs, and the water discharge action of moving the hand away from the sensitive range of the sensor 40 stops. The purpose of this specification is to provide an auxiliary function.If excrement adheres to the toilet bowl and it has not been completely removed, it is used to continuously discharge water to complete the interior of the bowl. Can be washed clean.

[0024]

[Effect of the device]

 With the above configuration, the device of the present invention forms the emission signal and the reception signal together in the cipher set, so that the received signal must be completely compatible with it. In addition to the fact that it does not work unless the operation time of 3 exceeds 3 seconds, when a person passes through or receives an interference signal from the outside, they are excluded from discrimination and water is not accidentally discharged. Then, the transmitting circuit and the receiving circuit consume power only when transmitting and receiving a signal, and immediately after supplying or receiving a signal, the power supply is stopped (a pause time of 1 second is set. To). Also, if the time interval between the front and rear users does not exceed 3 minutes, the inner wall of the toilet bowl will still be moist due to the subsequent post-flushing performed when the previous user leaves. Since water discharge can be omitted, the amount of water used and electricity used can be saved. Furthermore, not only can it automatically perform water discharge / washing operations before and after use, but it can also be operated by continuously detecting water by bringing your hand close to it, so that the user can selectively use it as needed. It is extremely convenient.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a usage state when an embodiment of the present invention is applied to a toilet.

FIG. 2 is an exploded perspective view of a control device according to an embodiment of the present invention.

FIG. 3 is a sectional view of the solenoid valve in the above embodiment.

FIG. 4 is an operation display diagram of the solenoid valve.

FIG. 5 is a cross-sectional view of the water intake / water discharge control valve of the above embodiment.

FIG. 6 is a cross-sectional view of the water intake / water discharge control valve of the above embodiment.

FIG. 7 is an electric circuit diagram according to an embodiment of the present invention.

FIG. 8 is a flowchart of a main program in the central processing unit in the above embodiment.

FIG. 9 is a flowchart of a first subprogram.

FIG. 10 is a flowchart of a second sub program.

FIG. 11 is a signal state diagram according to an embodiment of the present invention.

FIG. 12 is a signal state diagram according to an embodiment of the present invention.

[Explanation of symbols]

 31 Housing 32 Solenoid Valve 320 Shell 321 Induction Coil 322 Permanent Magnet 323 Spring 324 Driver 325 Water Stopper 34 Water / Water Control Valve 36 Machine Board 4 Sensing Means 40 Sensor 41 Sending Circuit 414 Counter 42 Receiving Circuit 43 Central Processing Unit 45 Electromagnetic Valve control circuit 47 Power detection circuit

Claims (5)

[Scope of utility model registration request] 1. A solenoid valve (3) in a hollow housing (31).
2), intake / water discharge control valve (34), housing cover (3)
6) and the sensing means (4), and the sensing means (4) includes a sensor (40), a transmitting circuit (41), and a receiving circuit (4).
2) A central processing unit (43) and a solenoid valve control circuit (45) are provided, and the central processing unit (43) having an execution program stored therein drives the oscillator circuit (41) to generate a periodic emission signal. The periodic firing signal received by the receiving circuit (42) is input to the central processing unit (43), and the solenoid valve control circuit (45) is driven by the output of the central processing unit (43). A sequence in which the opening and closing of a solenoid valve (32) which is coupled to operate synchronously with the water intake and discharge control valve (34) and regulates the flow of flowing water is controlled, and the central processing unit (43) is set by an execution program. Along the receiving and transmitting circuit (4
2, 41) when the power is turned on, the receiving / transmitting circuit (4
2, 41) is in a pause state, and when the power is cut off, the transmitting circuit (41) emits a signal to emit a cipher set, and the receiving circuit (42) receives a perfect cipher set signal, then It is input to the processing unit (43) to confirm the integrity and continuity of the cipher set signal, and the time length of the detection signal is discriminated. ) Is driven to control the water intake / water discharge control valve (34) to perform the water discharge and water rinsing operations before and after use, or the water discharge operation by the approaching motion of the hand, in the toilet. 2. When the central processing unit (43) is set by the parameter of the counter (414) and the time interval between the front and rear users does not exceed the time parameter set by the central processing unit (43). The automatic water supply control device for a toilet according to claim 1, wherein the prior user's subsequent water discharge is not executed. 3. The automatic water supply control device for a toilet according to claim 1, wherein the central processing unit (43) is provided with a power detection circuit (47) so that it can be driven in a timely manner to detect the power status of the battery. 4. A transistor provided in the solenoid valve control circuit (45) is turned on when a water supply signal from the central processing unit (43) is received, and a relay is driven to supply power to the solenoid valve (32). The automatic water supply control device for a toilet according to claim 1, which can be opened and closed. 5. The solenoid valve (32) is attached to a shell (320),
The induction coil (321) and the permanent magnet (322) are used to form a magnetic force induction means, a spring (323), a driving body (324), and a water stopper (325), and the induction coil (321) is formed by the magnetic force induction means. When driven, water stopcock (325)
Is connected to open the water channel, and the magnetic force guiding means drives the driving body (324), and then the permanent magnet (322) temporarily controls the position of the driving body (324) to reduce the electric consumption. The automatic water supply control device for a toilet according to claim 1, which is made possible.