JP2568136Y2 - Automatic cleaning control device for sanitary appliances - 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 washing control device for various sanitary appliances such as flush toilets and washstands.

[0002]

2. Description of the Related Art FIG. 2 shows an attached state of a conventional flush urinal (commonly known as morning glory) 1 for men. The morning glory 1 is attached to the front side of the wall surface 2 of the washroom, and an electromagnetic on-off valve 4 is connected to a water supply pipe 3 connected to the morning glory 1. When the electromagnetic on-off valve 4 is opened, washing water is supplied from the water supply pipe 3 to the morning glory 1. Conversely, when the electromagnetic on-off valve 4 is closed, the supply of the washing water from the water supply pipe 3 to the morning glory 1 is shut off.

The control box 5 has a wall 2 slightly above the morning glory 1.
Of the control box 5 is attached to the wall 2
It is exposed to. A human detection sensor 6 including a light emitting element 6a and a light receiving element 6b is provided on the front plate 5a.
Inside, a controller 7 and a battery 8 are provided.

FIG. 1 shows an electric block circuit diagram of a conventional automatic cleaning control device. The battery 8 includes a constant voltage circuit 20, a valve drive circuit 21, and a reset circuit 26 in the controller 7.
Is supplied with a DC power supply (power supply voltage VB).

The constant voltage circuit 20 is constituted by a three-terminal regulator, and includes a microcomputer (hereinafter abbreviated as a microcomputer) 22 in the controller 7, a light emission drive circuit 23,
A stable DC voltage is supplied to each of the light receiving circuit 24 and the oscillation circuit 25.

The microcomputer 22 has a central processing unit (CP)
U), a read-only memory (ROM) storing a control program, a readable and writable memory (RAM) for temporarily storing the results of a detection operation and a timer operation described later, and an input / output interface.

The oscillation circuit 25 supplies a clock φ to the microcomputer 22.
Is output. The microcomputer 22 performs all operations based on the clock φ. Then, a timer 22a in the microcomputer 22
Performs a timer operation based on the clock φ.

The valve drive circuit 21 opens and closes the solenoid on-off valve 4 composed of a self-holding solenoid valve based on a command signal from the microcomputer 22. That is, each time the valve drive circuit 21 outputs a pulse-like timing signal, the electromagnetic on-off valve 4
The open / close state is switched, and when the timing signal is not output, the previous open / close state is held as it is.

The light emission drive circuit 23 is a light emitting element 6a comprising a light emitting diode based on a command signal from the microcomputer 22.
To emit light. When a person stands in front of the morning glory 1, the projection light from the light emitting element 6a reflects on the person. The light receiving element 6b composed of a phototransistor detects the reflected light and outputs a detection signal, and the light receiving circuit 24 amplifies the detection signal and outputs it to the microcomputer 22. on the other hand,
When no person stands in front of the morning glory 1, the light projected from the light emitting element 6a is not reflected, and the light receiving element 6b cannot detect the reflected light, so that no detection signal is output.

Therefore, based on the detection signal from the light receiving circuit 24, the microcomputer 22 can detect whether or not a person stands in front of the morning glory 1. Then, the microcomputer 22 determines that "stands for a person" if standing, and "non-detects" if it is not standing, and stores the determination result in the RAM. Hereinafter, a series of operations of the microcomputer 22 is referred to as a detection operation. This detection operation is performed every second according to the timer operation of the timer 22a. And the microcomputer 22
Controls the timer 22a and the valve drive circuit 21 based on the present determination result and the previous determination result stored in the RAM.

That is, the microcomputer 22 resets the timer 22 a and outputs a command signal to the valve drive circuit 21 when the current determination result is “human detection” and the previous determination result is “non-human detection”. The electromagnetic on-off valve 4 is opened for one second to perform a pre-cleaning process. In addition, the microcomputer 22 determines that the current determination result is “human detection” and the previous determination result is “human detection”.
In this case, the timer 22a is reset, and a command signal is output to the valve drive circuit 21 to open the electromagnetic opening / closing valve 4 for 5 seconds to perform the post-cleaning process. Further, when both the current and previous determination results are “human detection” or “non-human detection”, the microcomputer 22 resets the timer 22a one second after the timer 22a starts the timer operation.

As shown in FIG. 5, the reset circuit 26 comprises a differentiating circuit comprising a capacitor C and a resistor R. Then, the reset circuit 26 converts the power supply voltage VB applied from the battery 8 into the capacity (C) of the capacitor C and the resistance R
The microcomputer 22 outputs a reset signal VO differentiated according to a time constant τ (= C · R) which is a product of the resistance values (R) of the microcomputer 22. That is, as shown in FIG. 6, when the battery 8 is connected, the power supply voltage VB rises, and the reset signal VO rises accordingly. The reset signal VO triggers the microcomputer 22 to erase the contents of the RAM and reset all operations.

The microcomputer 22 has setting switches 27 for performing various initial settings such as a cleaning time described later.
Is connected. Next, the operation of the automatic cleaning control device will be described with reference to the flowchart shown in FIG.

First, in step (hereinafter referred to as S) 1, the installer connects the battery 8 to the controller 7 when the automatic cleaning control device is installed. Then, based on the reset signal VO which rises with the rise of the power supply voltage VB, the microcomputer 22 erases the contents of the RAM and resets all operations. Then, the process proceeds to S2.

In S2, the installer sets each setting switch 2
7 is operated to set the washing time and the like. Then, the process proceeds to S3. In S3, the microcomputer 22 starts the detection operation and the timer operation of the timer 22a based on the various initial settings by the setting switches 27. Then, the process proceeds to S4.

In S4, if the current judgment result of the microcomputer 22 is "human detection", the flow shifts to S5, and "human non-detection" is performed.
In the case of, the process proceeds to S6. In S5, if the previous determination result stored in the RAM is "non-human detection", the process proceeds to S7, and if "human detection", the process proceeds to S8.

In S7, the microcomputer 22 sets the timer 22
a is reset. Then, control goes to a step S9. In S9, the microcomputer 22 outputs a command signal to the valve drive circuit 21 to open the electromagnetic on-off valve 4 for one second, and performs a pre-cleaning process. That is, when a person who intends to add a small task stands in front of the morning glory 1, washing water is supplied from the water supply pipe 3 to the morning glory 1 for only one second, and the morning glory 1 is washed before the small task. Then, the process returns to S3.

On the other hand, in S6, if the previous determination result stored in the RAM is "non-human detection", the flow shifts to S8,
In the case of "human detection", the process proceeds to S10. In S10, the microcomputer 22 resets the timer 22a. Then, control goes to a step S11.

In S11, the microcomputer 22 outputs a command signal to the valve drive circuit 21 to open the electromagnetic on-off valve 4 for 5 seconds, and performs a post-cleaning process. In other words, when the person who has finished using the small leave leaves in front of the morning glory 1, the washing water is supplied from the water supply pipe 3 to the morning glory 1 for only 5 seconds, and the morning glory 1 is washed. Then, the process returns to S3.

In S8, the microcomputer 22 determines whether or not the time measured by the timer 22a has elapsed for one second or more since the start of the timer operation. If one second or more has elapsed, the process proceeds to S12, and if less than one second has elapsed, the process waits until one second has elapsed.

Then, in S12, the microcomputer 22 resets the timer 22a, and returns to S3. That is,
If a person who wants to add a small task does not appear in front of morning glory 1 and one second has elapsed, the detection operation is repeated again. If a person who is going to add a small task is standing in front of the morning glory 1 for 1 second or more, the detection operation is repeated again assuming that the small task is being used.

As described above, in the automatic control apparatus for morning glory 1, when the battery 8 is connected at the time of construction, all operations of the microcomputer 22 are reset, and various initial settings are performed by the setting switches 27. Then, start the automatic cleaning operation,
Wash the morning glory 1 when the person who is going to add a small item stands in front of the morning glory (pre-washing), and wash the morning glory 1 again after finishing adding the small item and leave the front of the morning glory 1 (post washing). Has become.

[0023]

In this automatic cleaning control device, since the battery 8 is used as a power source, it is necessary to reduce power consumption as much as possible. for that reason,
The frequency of the clock φ of the oscillation circuit 25 is set low. As a result, it may take several seconds after the battery 8 is connected until the operation of the oscillation circuit 25 is stabilized and a normal clock φ is output.

That is, as shown in FIG. 6- (a), when the clock .phi. Immediately enters the steady state after the battery 8 is connected, the microcomputer 22 is controlled based on the clock .phi.
Starts the normal operation, the reset signal VO is output, and the entire operation of the microcomputer 22 can be reliably reset.

However, as shown in FIG. 6- (b), when the clock .phi. Is brought into a steady state only after the output of the reset signal VO, the reset signal is output before the microcomputer 22 starts the normal operation. When the output of VO is finished and the microcomputer 22 starts normal operation, the reset signal VO is not output, so that there is a problem that the entire operation of the microcomputer 22 is not reset.

Unless the entire operation of the microcomputer 22 is reset, various initial settings cannot be accurately made by the setting switches 27, so that the automatic cleaning operation cannot be accurately performed.

Therefore, it is conceivable that the reset signal VO is continuously output for several seconds by increasing the time constant τ of the reset circuit 26. However, for that purpose, it is necessary to make the capacity of the capacitor C extremely large,
Component costs will increase. Also, if a large capacitor C is used, the control box 5 needs to be large, which leads to an increase in construction cost. Therefore, increasing the time constant τ of the reset circuit 26 is impractical.

The present invention has been made to solve the above problems, and its purpose is to increase the size of the apparatus.
A control device that can surely reset the control device
It is an object of the present invention to provide an automatic washing control device for a raw utensil .

[0029]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a human detecting means for detecting a user of a sanitary appliance, a cleaning body supplying means for supplying a cleaning body to the sanitary appliance, A driving unit that drives the cleaning unit supply unit; an oscillation unit that outputs a clock signal; and an operation unit that operates based on a clock signal from the oscillation unit, and performs cleaning by the cleaning unit supply unit based on detection by the human detection unit. Constant supply of body
Control means for controlling the driving means so that it is performed only for the time
Reset all operations of the control means to the initial state
Initial state setting means for outputting a reset signal to
Automatic sanitary fittings with batteries that supply power to each means
In the cleaning control device, the initial state setting unit may be a first control unit.
Connected in series with a resistor and capacitor
An integration circuit for outputting a voltage obtained by integrating the obtained voltage;
And the third resistor are connected in series and supplied from the power source.
A voltage dividing circuit for outputting a voltage obtained by dividing the applied voltage,
Comparing the integrated voltage with the divided voltage, the divided voltage is
Outputs a reset signal to the control means when pressure is higher than pressure
And a reset signal after power-on.
A normal clock signal was output from the oscillation means.
The gist is that the resistance values of the respective resistors are set so as to be output later .

[0030]

According to the present invention , a battery is used as a power source.
The reset signal output time.
Even if necessary, the output time is set by the initial state setting means.
By changing the resistance value of each resistor
Is done. For this reason, the initial state setting means has only a differentiating circuit.
Compared to the conventional method, the capacitor can be
The output time of the set signal can be lengthened. Soshi
In addition, the resistance value of each of the above-mentioned resistors is set to a normal clock from the oscillation means.
Reset signal is output after signal is output
Is set. For this reason, the control means starts normal operation.
After starting, all operations of the control means are reliably reset.
Therefore, in an apparatus using a battery as a power supply,
Control unit without resetting
Can be

[0031]

FIG. 3 shows an embodiment of the present invention.
This will be described with reference to FIG. In this embodiment, FIGS.
The only difference from the conventional example shown in FIG. 2 is the configuration of the reset circuit 26. Therefore, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 3, the reset circuit 26
An integrating circuit 30 including a resistor R1 and a capacitor; a voltage dividing circuit 31 including resistors R2 and R3;
And 2. In other words, the integration circuit 30 sets the power supply voltage VB to a time constant t (= 1 / C1 ·
R), an integrated output VI is output.

The voltage dividing circuit 31 connects the power supply voltage VB to each resistor R
2 and R3 to output a divided voltage VR. The negative input terminal of the comparator 32 receives the integral output VI, and the positive input terminal receives the divided voltage VR. The comparator 32 compares the integrated output VI with the divided voltage VR and outputs a reset signal VO. still,
The comparator 32 performs a single power supply operation according to the power supply voltage VB.

That is, the divided voltage VR is higher than the integrated output V
If it is larger than I, the reset signal VO becomes high level (=
(VB). Conversely, when the integrated output VI is larger than the divided voltage VR, the reset signal VO is at a low level (= ground level).

Next, the operation of the reset circuit 26 configured as described above will be described with reference to FIG. When the battery 8 is connected, the power supply voltage VB rises, and the divided voltage VR rises accordingly. On the other hand, the integral output VI gradually rises according to the time constant t.

When the increased integrated output VI does not reach the divided voltage VR, the reset signal VO goes high. When the integral output VI exceeds the divided voltage VR, the reset signal VO goes low.

When the reset signal VO is at the high level,
By adjusting the time constant t and the resistance values of the resistors R2 and R3 of the voltage dividing circuit, adjustment can be easily made. When the reset signal VO is set to a high level for several seconds, the size of the comparator 32 and the capacitor C1 of the present embodiment is smaller than the size of the capacitor C of the reset circuit 26 using only the differentiating circuit of the conventional example. Can be much smaller.

As described above, in this embodiment, a high-level reset signal VO can be output for several seconds by the reset circuit 26 having a simple configuration. Therefore, battery 8
, The operation of the oscillation circuit 25 is stabilized and a normal clock φ is output. After the microcomputer 22 starts normal operation based on the clock φ, the reset signal VO
Is output, and all operations of the microcomputer 22 can be reliably reset.

The automatic cleaning operation of this embodiment is the same as that of the conventional example shown in the flowchart of FIG. By the way, the present invention is not limited to the above embodiment, and may be implemented as follows, for example.

1) The battery 8 is replaced with a DC power supply, and power is supplied from a commercial power supply. 2) The present invention is embodied not only in the morning glory 1 but also in an automatic washing control device for various sanitary appliances such as a wash basin.

3) The microcomputer 22 substitutes for the functions of the light emission drive circuit 23, the light receiving circuit 24, and the oscillation circuit 25, and the circuits 23 to 25 are omitted. 4) Only one of the pre-cleaning operation and the post-cleaning operation is performed.

[0042]

According to the present invention as described in detail [devised effects above, electrostatic
Equipment that uses batteries as a power source
Control device without resetting
Wear.

[Brief description of the drawings]

FIG. 1 is an electric block circuit diagram showing an automatic cleaning control device according to an embodiment of the present invention.

FIG. 2 (a) is a partially cutaway side view showing an attached state of a men's flush urinal according to one embodiment of the present invention, and FIG. 2 (b) is a front view of the same.

FIG. 3 is an electric circuit diagram showing a reset circuit according to one embodiment.

FIG. 4 is a time chart illustrating an operation of the reset circuit according to the embodiment;

FIG. 5 is an electric circuit diagram showing a conventional reset circuit.

FIG. 6 is a time chart showing an operation of a reset circuit of a conventional example.

FIG. 7 is a flowchart showing the operation of the automatic cleaning control device.

[Explanation of symbols]

1 ... morning glory as a sanitary appliance 4 ... electromagnetic on-off valve as cleaning body supply means 6 ... human detection sensor as human detection means
8 ... battery , 21 ... valve drive circuit as drive means, 22 ...
A microcomputer as control means, 25 an oscillation circuit as oscillation means, 26 a reset circuit as initial state setting means, 30 an integration circuit, 31 a voltage dividing circuit, 32
... Comparator as a comparator, C1 ... Capacitor, R
1: first resistor, R2: second resistor, R3: third resistor
Resistance, V _I … integrated voltage, V _R … divided voltage, V _O … reset
Signal, φ ... clock signal

Claims (1)

(57) [Scope of request for utility model registration] 1. A person detecting means (6) for detecting a user of a sanitary appliance (1); a washing body supplying means ( 4 ) for supplying a washing body to the sanitary appliance (1); Driving means (21) for driving the supply means ( 4 )
Oscillating means (25) for outputting a clock signal (φ); operating based on a clock signal (φ) from the oscillating means (25);
The cleaning body is supplied by the cleaning body supply means (4) for a certain period of time.
Control means (22 ) for controlling the driving means (21) so as to perform the operation, and resetting all operations of the control means (22) to the initial state.
Initial state setting means (2) for outputting a reset signal
6) and a power supply to each of the means (4 , 6, 21, 22, 25, 26).
In the automatic cleaning control device for sanitary ware provided with a battery (8) for supplying a battery , the initial state setting means (26 ) is connected in series with a first resistor (R1) and a capacitor (C1).
And a voltage obtained by integrating the voltage supplied from the power supply (8).
(V _I ), an integrator (30), and a second resistor (R2) and a third resistor (R3) connected in series.
And a voltage obtained by dividing the voltage supplied from the power supply (8).
A voltage dividing circuit (31) for outputting (V _R ) compares the integrated voltage (V _I ) with the divided voltage (V _R ).
When the divided voltage (V _R ) is larger than the integration voltage (V _I )
In this case, a reset signal ( _VO ) is output to the control means (22).
And a comparator (32) for inputting power.
Normally from the reset signal (V _O) is the oscillation means (25)
Clock signal (φ) is output after being output
Wherein the resistance value of each of the resistors (R1, R2, R3) is set .