JP2003184153A - Stool flushing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To establish a method for optimally flushing a stool reflecting use conditions inclusive of the stool in a stool flushing system composed of a silver- ion electrolytic generator inhibiting the odor of the stool and the formation of a urolith. <P>SOLUTION: The discharge time of urine is detected by using a Doppler sensor. The magnitude of the quantity of urine load to the stool is decided from the discharge time proportional to the quantity of urine, and the electrolytic current value of the silver-ion electrolytic generator, the quantity of silver ion water and the discharge-time intervals of silver ion water are changed. The stool is flushed collectively by silver ion water when the urine discharge time reaches a fixed time in the case of the high frequency of the use of the stool. The silver-ion water flushing of the mutual stools sharing a drain pipe is synchronized by using the transmission radio waves of the Doppler sensor, and dirt discharge efficiency is improved. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a toilet bowl cleaning system having a sterilizing function for toilet bowl cleaning water.

[0002]

2. Description of the Related Art Toilet bowls, especially urinal bowls, are bound with urinary stone stains, which are solidified in the form of stones, by binding phosphate ions contained in urine with calcium and the like. Bacterial activity is involved in this urinary stone formation process, and it is effective to flush wash water having bactericidal performance to the toilet bowl to control urinary stones. The applicant of the present invention has proposed a toilet bowl cleaning system using silver ion water as sterilizing water in Japanese Patent Laid-Open No. 2000-64389. A method of eluting silver ions in water by applying electricity to the silver electrode.The advantage of this method is that by changing the magnitude of the current value to be applied to the electrode and the duration of the current to obtain a predetermined concentration of silver ions. , The concentration can be controlled, and by flushing the optimal concentration of silver ions, the amount of toilet flush water can be reduced (saving water),
In addition, the cleaning frequency for removing urine stones is reduced.

A problem with the above-described toilet with a silver ion electrolysis generator is that the control pattern for sterilizing water discharge is uniformly defined, and the control content cannot be changed according to the usage of the toilet. The toilets to which the devices are attached are often public facilities such as stations and offices, and the usage status changes depending on the facility, the location of the toilet on the same floor, and the time of day. The infrared sensor of the toilet bowl detects the user and stores some expected usage patterns in the device when the usage frequency is high or continuous use, and the toilet cleaning volume can be changed accordingly. In this method, the detection is performed by the human body, and the amount of urine that causes stains is not directly detected. Therefore, there is a concern that the accumulation of stains may be significant due to the increased water-saving effect.

[0004]

SUMMARY OF THE INVENTION The present invention is based on such a background, and in a toilet bowl cleaning system in which silver ions are electrolytically mixed into toilet bowl cleaning water, it is possible to detect different urine discharge amounts for each toilet bowl. The purpose is to save water in the amount of toilet flush water to the maximum extent according to the situation, to suppress urinary stone adherence to suppress the odor rising from the toilet bowl, and to improve the maintainability by suppressing clogging of toilet bowl piping.

[0005]

In order to achieve the above object, the present invention provides a flush water pipe for supplying flush water to a toilet bowl, a valve for turning on / off the supply of flush water to the toilet bowl, and a silver In a toilet bowl cleaning system in which a containing electrode is installed and the valve is opened and the silver containing electrode is energized to supply silver ion cleaning water to the toilet bowl, a transmitting means for transmitting an electric wave toward the space inside the bowl portion of the toilet bowl, Receiving means for receiving a reflected wave of the radio wave transmitted by the transmitting means,
Difference detecting means for generating a difference signal according to the difference between the frequency of the signal received by the receiving means and the frequency of the signal transmitted by the transmitting means, and frequency analyzing means for frequency-analyzing the output of the difference detecting means Is provided, the urine release time is calculated from the output of the Doppler sensor, and the electricity supply to the silver-containing electrode is controlled based on the calculated value.

The transmitting means of the present invention emits radio waves (micro, millimeter waves) having a long wavelength range. Since the microwave penetrates the pottery, the sensor body does not enter the eyes of the user,
Built in the toilet bowl. The transmitted radio wave strikes the object, is reflected, and enters the receiving means inside the toilet bowl again. The Doppler sensor of the present invention senses the dynamic behavior of an object hit by radio waves as a Doppler effect. Basic formula: ΔF = Fs-Fb = 2 × Fs × ν / c ... ΔF: Doppler frequency Fs: Transmission frequency Fb: Reception frequency ν: Moving speed of object c: Speed of light (300 × 10 ⁶ m / s) The frequency difference ΔF between the transmitted wave and the reflected wave can be extracted as a detection signal.

In the present invention, the moving object is a toilet bowl user and urine falling. Although specific Doppler frequencies are shown in the examples, in the actual use situation, the emission of the user and urine was remarkably detected. By capturing falling urine as a moving object and using the Doppler reflection of radio waves,
It has become possible to directly sense the amount of urine without contact. Urine makes a free fall motion, and the velocity in the vertical direction can be defined by the following equation. v _⊥ = v _{0 ⊥} + gt ... v _⊥ : Vertical speed v _{0 ⊥} : Vertical initial speed g: Gravity acceleration t: Time after release The speed becomes maximum immediately before contact with the toilet bowl, Contributes to frequency shift. Urine is not a continuum, but is composed of intermittent droplets, and the Doppler frequency has a certain distribution with respect to time. On the low frequency side, some are derived from noise, so it is preferable to cut with a filter. Frequency difference above the threshold,
It becomes possible to directly detect the urine release situation by measuring in real time by the frequency analysis means. The time period when the Doppler frequency difference increases is the time period when urine is released. In the present invention, the urination time based on the Doppler frequency difference due to the urine, reflected in the method of energizing the silver-containing electrode,
The most suitable cleaning method can be selected for each individual toilet bowl.

Further, the transmitting means of the Doppler sensor transmits radio waves from the upper part of the toilet in a direction substantially parallel to the inner wall surface of the ball portion, and the radio waves reflected by the emitted urine are received by the receiving means, thereby urinating. It is characterized by detecting the presence or absence of.

In the Doppler effect, the velocity component in the same direction as the transmitted radio wave acts on the velocity of the moving object. In the present invention, in the urine drop curve, the change in the velocity component in the vertical direction is the largest, so that the radio wave transmitting means is caused to emit downward from the upper part of the toilet bowl toward the inside of the toilet bowl. In this case,
However, the Doppler frequency difference becomes the largest, and the urine detection accuracy can be increased. Even when the radio wave is transmitted from the transmitting means directly below, the movement of the person approaching the toilet bowl and the movement of the person away from the toilet bowl can be detected, and the user can also be detected.

The present invention is characterized in that the amount of urine is calculated from the urine release time during which urine is detected. It was found that the frequency change time derived from urine (hereinafter referred to as urine release time) is directly correlated with the urine volume. The correlation between the actual urine volume and the detected urine release time will be described in detail in Examples. In the present invention, the amount of urine-derived frequency change detected by the Doppler sensor can be used to easily and accurately detect the amount of urine, which can be reflected in the subsequent electrolysis and water discharge control of the silver ion wash water.

Further, according to the present invention, when a predetermined time has passed from the previous discharge of the silver ion cleaning water, the valve is opened and the silver containing electrode is energized to discharge the silver ion cleaning water. The current value applied to the electrodes is determined by the total sum of the urine release times detected during the predetermined time.

Generation of urinary stones requires that bacterial activity continues for a certain period of time. Therefore, even if the silver ion cleaning water is not flushed each time the toilet is used, a predetermined time elapses from the last discharge of the silver ion cleaning water. It is preferable to discharge the silver ion cleaning water after the elapse of time in order to prolong the life of the silver-containing electrode.
In that case, as described above, when the release time and the urine volume are actually measured, a linear correlation can be seen between the two, so when the total urine release time is long, it can be determined that the urine volume is large,
It is necessary to increase the sterilizing power. Here, the electrolytic production amount of silver ions is represented by the following from Faraday's law. A = I × M × 60 × 1000 / Z / Q ... …… A: Elution concentration of silver ion (ppb) I: Current flowing between electrodes (mA) Z: Faraday constant M: Silver atomic weight Q: Flowing between electrodes The water flow rate (L / min) shows that the amount of silver ions eluted is affected by the current value and the interelectrode flow rate. The device integrates the total release time of urine released to the toilet during the fixed time while discharging silver ion water, and the longer the total release time, the larger the current value will be and the higher the silver ion concentration will be. The sterilizing power can be increased. Even when the number of users is small at night and the total urine release time at a time point when a predetermined time has passed since the previous discharge of the silver ion cleaning water is short, the minimum current value is set.

According to the present invention, after a lapse of a predetermined time from the previous discharge of the silver ion cleaning water, the valve is opened and the silver containing electrode is energized to discharge the silver ion cleaning water. The energization time and the valve opening time are determined by the sum of the urine release time detected during the predetermined time. Similarly to the above, the usage status of the toilet bowl is reflected in the silver ion water cleaning. The amount of silver ion water regularly discharged is changed according to the amount of urine. For example, the flow rate of washing with silver ion water is 12 L / min and normally 10
If the second setting is that a large amount of urine is discharged, the urine is extended to wash for 20 seconds, and increased to 4 L of water discharge. The origins of odors and urine stones are urine-derived stains remaining in the toilet traps and drains, and miscellaneous bacteria that can be mixed and propagated, so it is sufficient to completely eliminate these. Increasing the amount of silver ion cleaning water has the effect of significantly improving the dirt discharge power.

Further, the present invention is characterized in that the threshold value of the measuring means until the next spouting of the silver ion washing water is changed according to the sum of the urine release time. When the amount of released urine is large, the current value is increased to increase the silver ion concentration, or the discharge time of the silver ion cleaning water is lengthened and the time interval for the next silver ion cleaning is further shortened. As a result, both the sterilization efficiency and the cleaning efficiency are increased, and the efficiency of discharging dirt and bacteria out of the toilet bowl is increased. The urine volume detection result
By feeding back to the operation method of the toilet bowl cleaning system, the optimal sterilizing water cleaning method for each toilet bowl became possible.

According to the present invention, when the Doppler sensor detects that the user has left the toilet after urinating, and the total urine release time exceeds a certain value, the valve is opened and the silver-containing electrode is opened. It is characterized in that the silver ion cleaning water is discharged by energizing the.

In the present invention, when the toilet bowl is used frequently,
Since the silver ion electrolysis generator is operated to add silver ions to the washing water, stains and odors can be reduced.

The present invention further comprises means for transmitting a predetermined signal different from the signal transmitted from the transmitting means when the valve is opened and the silver-containing electrode is energized to eject silver ion cleaning water. When the receiving means receives the predetermined signal, the valve is opened and the silver-containing electrode is energized to discharge the silver ion cleaning water, whereby the plurality of toilet bowls synchronize the silver ion cleaning water discharge. It is characterized in that it is possible to do. As a preventive measure for urinary stones in the drain pipe, flush the drain pipe with a large amount of water,
As a result, the urine that causes urinary stones can be discharged without remaining. In the present invention, the toilets sharing the drain pipe synchronize the cleaning with each other to realize the maximum drainage flow rate in the drain pipe. When a toilet bowl is regularly cleaned with silver ion water, a radio wave corresponding to the regular cleaning is transmitted to the adjacent toilet bowl, and the adjacent toilet bowl is also regularly cleaned with silver ion water. Using the electric wave transmitting and receiving means mounted on the toilet, the electric wave is the electric wave used to detect the urine release time, and is turned on several times.
Transmit the radio wave set to be recognized by turning it off.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION In order to further clarify the functions and effects of the present invention described above, preferred embodiments of the present invention will be described below.

FIG. 1 shows a first embodiment of the present invention, and shows an example in which the present invention is mounted on a urinal as a toilet bowl.
The device is installed in the upper urinal of the urinal 1 and cannot be seen from the outside. Conventionally, the infrared sensor part for detecting a human body has been exposed to the outside of the toilet bowl, but in the present invention, since nothing is exposed on the outer surface of the pottery, the shape is good and the user will not be misled. The water from the cleaning water pipe 4 is controlled by the operation of the cleaning valve 5 so that the water is stopped and stopped. After the cleaning valve 5,
A silver ion electrolytic generator 6 is arranged. The human body detection and the urine detection are performed by the Doppler sensor 3, and the washing valve 5 is processed by the microcomputer of the controller 2.
And is reflected in the operation of the silver ion electrolytic generator 6. Radio waves are emitted vertically from the Doppler sensor 3 to efficiently reflect the speed of falling urine.

FIG. 2 is a detailed view of the silver ion electrolytic generator 6. Silver electrodes 7a and 7b containing silver are arranged in parallel with each other with a water channel interposed therebetween, and an electrolysis reaction is performed between water and the electrodes. Since silver ion has a bactericidal activity from about 5 ppb, 1
Even when flushing the urinal with 0 L / min, several mA
Since only a small current is required, there is an advantage that the electrolysis power can be extremely low. When a large resistance of tap water is sandwiched between silver electrodes for electrolysis, a voltage of about 10 V and a power capacity of several tens of mW are required to flow a current of several mA. The distance between silver electrodes is the same level as the waterway piping (inner diameter 15 mm
Since the voltage is 10 V, the pressure loss in the electrolyzer is not so large, and it is not necessary to reduce the amount of flush water for the urinal during electrolysis. As a result, the inside of the urinal and the drain pipe can be vigorously washed with sterilizing silver ion water.

FIG. 3 shows a Doppler sensor 3 for detecting a human body and urine. Radio waves are transmitted from the radio wave transmitting means 8 constantly or at regular intervals, and the radio waves act on the person standing in front of the toilet bowl or the urine produced by the person and return to the receiving means 9. The velocity component of the acting body is reflected in the received radio wave, and ΔF is detected by the difference detecting means 10.
Is output. The frequency analysis means 11 is composed of a filter that cuts a low frequency region that causes a drop in the S / N ratio. The frequency that has passed through the filter is output on the time axis, and the frequency components derived from humans and urine are analyzed. The frequency change information derived from a person and the frequency change information derived from urine enter the control controller 2 to cause opening / closing of the cleaning valve 5 and electrolysis in the silver ion electrolysis generator 6.

FIG. 4 shows the frequency output from the Doppler sensor 3. Radio wave 10.525G from transmitting means 8
The waveform output to the difference detection means 10 when transmitting Hz is the upper diagram of FIG. Amplification + filter processing is added to this, and the result is the output from the frequency analysis means 11. The amplification factor is about 500 times, and the filter pass band is about 100 to 200 Hz. The lower diagram of FIG. 4 shows a waveform change derived from urine. It shows that the release of urine can be clearly captured.

FIG. 5 shows the correlation between urine volume and urine release time.
The urine volume was actually measured by a monitor, and the duration of waveform generation derived from urine was plotted from the output waveform of FIG. It shows a good correlation between urine volume and urine release time. Generally, the average urine volume of an adult male is about 200 ml, and the time required is about 10 seconds, which is a reasonable value because the Doppler sensor detects it. Since the radio wave is the speed of light, it is real-time urine detection, and by using the urine release time as a parameter, simple and effective urine volume detection became possible.

FIG. 6 is a device operation chart during normal use. When the Doppler sensor 3 detects a human body (S61 Yes). Timer T1 to measure urine release time
Is set (S62), and the urine detection flow is entered (S6
3). When urine is detected, the timer T1 is activated (S6
4) Continue to detect urine. When the urine detection is stopped, the timer T1 is stopped (S65), and the detected urine release time T1 is added to the total time Tn-1 up to the previous time and recorded in the memory M (S66). When the human body is detected (S67), the washing valve is opened (S68), and the urine discharged to the urinal is washed away.

FIG. 7 is a flowchart relating to the control of the electrolytic current value for silver ion cleaning, based on the sensing of the urine release time. The value of the timer T2, which measures the time from the previous washing with silver ion water, is periodically read (S71), and when the time is Δt (S72Ye
s), the memory M is accessed to read the total time Tn of urine discharge (S73). Tn is determined (S74), Tn ≧ T
In the case of a, silver electrolysis is performed with an electrolysis current I = 2 × I ₀ , and a washing valve is opened to discharge silver ion water to the urinal (S
75). Otherwise, the electrolytic current I = I ₀ (S76). I ₀ is a current value calculated from the electric conductivity of water, and although the details will be described later, the electric conductivity of water was used to elute silver ions at a constant concentration as much as possible. When Δt is fixed, it becomes an example in which silver ion water is spouted at regular time intervals, which is simplified in terms of control, but with a small amount of silver ion,
It is suitable as a method to improve the odor and urinary stone control effect.
The reason is that the water in the urinal trap and drainage pipe is not allowed to stay for a long time, and silver ion water cleaning at night is particularly effective. At regular time intervals, Δt may be marked so that water is spouted at night. Of course, a method in which Δt is not fixed by fuzzy control or the like is also applicable. This control aims to increase the current value in order to increase the sterilizing power when the number of users is large and the urine load is large. When there are many users during the daytime, a current value that is twice as large as that at night is applied, and the usage status depending on the time zone is reflected in the toilet cleaning method even with the same toilet bowl. This may be reflected in the cleaning time, and another embodiment of the present invention is as follows. T <Ta silver ion water cleaning time = T ₀ T ≧ Ta silver ion water cleaning time = 2 × T ₀ T ₀ : cleaning valve opening time, about 10 seconds If the amount of cleaning water is doubled, discharge of contaminants such as urine Efficiency is dramatically improved.

8 to 11 are shown for I ₀ . Figure 8
This is a calculation of the concentration of chloride ions contained in tap water and tap water collected from all over Japan, and the silver ion generation efficiency when the same water is electrolyzed. The efficiency decreases exponentially with respect to the chloride ion concentration on the horizontal axis, and it is shown that the efficiency approaches infinitely when the chloride ion becomes extremely large. When the reused water that has been used and treated once is used as the urinal wash water, it has a high chlorine ion concentration because it is dirty. In the case of electrolyzing these waters, the efficiency is lowered, so that the concentration is extremely lowered at a constant current value. Therefore, it is preferable to apply a current value that assumes a reduction in efficiency. Figure 9
Is the correlation between the chloride ion concentration and the electrical conductivity of the water used for the above-mentioned electrolysis. Both show a very high correlation. As a result, electric conductivity, which is easy to detect, is used as an index of chlorine ion concentration.

FIG. 10 shows changes in applied current value with respect to electrical conductivity. The purpose is to keep the concentration of silver ions in water above a certain level for any water, and keep in mind that this device has bactericidal activity in any water environment. . From the viewpoint of efficiency, the above-mentioned inhibition of silver ion formation by chlorine ion was quantified, and the numerical control of the electric current was made possible by quantifying it. As an example of the numerical control, FIG. 10 shows the exponential function control that directly reflects the efficiency. The absolute value of the current value on the vertical axis changes depending on the value of the silver ion concentration to be controlled. Since there is concern about the influence of silver on the environment, too high a silver ion concentration cannot be eluted, so the upper limit value is naturally determined. In view of the world water quality regulations that are members of the WTO and the opinion of Japan's Bureau of Sewage, we set an upper limit of 10
ppb was set. Tap water in the low chlorine ion region contains chlorine ions of 10 to 20 ppb and has a current value of 2 m.
A is enough. Therefore, in the range of the current value, the current value changes exponentially with respect to the electric conductivity. FIG. 11 shows
11 is a current value control example in which it is easier to change the current value exponentially with respect to the electric conductivity of FIG. 10. In a region where the chlorine ion concentration is low (electrical conductivity is low), it is first-order correlated with the current value, and in a region where the electric conductivity is high, the electric current value is always constant. By determining the current value I _{0 based} on these electrical conductivities, it has become possible to control the silver ion concentration in a predetermined region even in reprocessed water in which various water qualities are assumed.

FIG. 12 is a flow chart in the case of changing the time interval for performing the silver ion cleaning based on the sensing of the urine release time of FIG. The value of the timer T2, which measures the time since the previous cleaning with silver ion water, is periodically read (S121), and the memory M is accessed (S12).
2), Tn 'at the time of the last silver ion water discharge is output (S1).
23). When Tn 'is determined (S124) and Tn'<Ta, if T2 becomes normal Δt, the silver ion water discharge mode is entered (S126), but if Tn '≧ Ta, it is earlier than that. Then, half the usual 0.5 × Δt is entered to enter the silver ion cleaning mode (S125). Access the memory M (S1
27), Tn is output. If Tn ≧ Ta, electrolysis is performed at a current value twice that of the usual case, as in the seventh case. Of course, instead of changing the current value, the time for performing silver electrolysis may be changed.

FIG. 13 shows still another embodiment of the present invention. When people use the toilet bowl one after another, regular silver ion cleaning may cause stains.Therefore, the accumulated value of the released urine volume when the toilet bowl has been used exceeds the prescribed amount. Indicates that it is washed with silver ion water. Until the Doppler sensor 3 detects the human body and the urine release time, it is the same as in FIG. 6 (S131 to S136). After the human body is separated, the determination is made (S137). If Tt ≧ Tb, it is determined that the expected amount of urine has entered the urinal, and the cleaning discharge is started. The washing valve is opened, and a current I ₀ is applied to the silver ion electrolysis generator to discharge silver ion water (S13).
9). Even when used frequently by a person, if the actual urine load is not large, water is particularly wasted, so that the cleaning process of the above step is effective.

FIG. 14 shows the Doppler sensor 3 of the present invention.
This is an example of using the radio wave transmitting / receiving means of the device for transmitting information between toilet bowls. However, as the transmitting means, in addition to the transmitting means into the toilet bowl portion, the transmitting means toward the toilet provided adjacently is separately provided. In the present invention, the cleaning process of silver ion water is used in such a manner that the toilet bowls sharing the same drain pipe synchronize with each other. When the urinal 1 uses the Doppler sensor 3 to change the cleaning pattern of the silver ion water according to the urine load and discharge water, the cleaning information of the silver ion water is transmitted to the adjacent urinal 12 by the radio wave. Let me know. The urinal 12 that has received the radio wave also starts discharging water of silver ion water. As a result, the inside of the drain pipe 13 is filled with flush water from two or more urinals, and it is possible to completely flush the dirt downstream under the condition that the water is flushed at once with a bucket.

[Brief description of drawings]

FIG. 1 is a device configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a diagram of a silver ion electrolysis generator of the present invention.

FIG. 3 is a block diagram of the Doppler sensor element of the present invention.

FIG. 4 is a frequency output diagram from the Doppler sensor of the present invention.

FIG. 5 shows the correlation between the urine volume and the urine release time of the present invention.

FIG. 6 is a flowchart for detecting urine release time according to the present invention.

FIG. 7 is a control flowchart of urine release time and electrolytic current value according to the present invention.

[Fig. 8] Concentrations of chlorine ions contained in tap water and reprocessed water collected from all over Japan and silver ion production efficiency when the same water is electrolyzed according to the present invention.

FIG. 9 is a correlation between the chloride ion concentration and the electrical conductivity according to the present invention.

FIG. 10 shows changes in applied current value with respect to electric conductivity according to the present invention.

11 is a current value control example in which it is easier to change the current value exponentially with respect to the electric conductivity of FIG.

FIG. 12 is a cleaning flowchart showing another embodiment of the present invention, in which the amount of urine is reflected in the water discharge interval of silver ion water.

FIG. 13 is a cleaning flow chart for frequent use of a toilet bowl according to another embodiment of the present invention.

FIG. 14 is a urinal diagram in the case where cleaning of a plurality of toilet bowls of the present invention is synchronized.

[Explanation of symbols]

1… Urinal 2 ... Controller 3 ... Doppler sensor 4… Wash water pipe 5… Washing valve 6 ... Silver ion electrolysis generator 7a, 7b ... Silver electrode 8… Radio wave transmission means 9 ... Radio wave receiving means 10 ... Radio frequency difference detection means 11 ... Frequency analysis means 12 ... Urinal 13 ... Drainage pipe

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C02F 1/50 540 C02F 1/50 540B 550 550D 550L 560 560F E03D 5/10 E03D 5/10 13/00 13 / 00 G01V 3/12 G01V 3/12 A (72) Inventor Naoto Wajima 2-1, 1-1 Nakajima, Kokurakita-ku, Kitakyushu, Kitakyushu, Fukuoka Prefecture Totoki Kikai Co., Ltd. (72) Inventor Koga Itosho, Kitakyushu, Fukuoka 2-1-1 Nakajima, Kokurakita-ku, Tochi-kiki Co., Ltd. (72) Aiko Mitsu 2-1-1 Nakajima, 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka 2D038 AA02 GA00 KA21 2D039 AA04 DB04 EA00 FA09 FB00 FC00 2G005 DA04

Claims (8)

[Claims] 1. A flush water pipe for supplying flush water to a toilet bowl,
In a toilet bowl cleaning system in which a valve for turning on / off the supply of flush water to the toilet bowl and a silver-containing electrode are installed, and the valve is opened and the silver-containing electrode is energized to supply silver ion flush water to the toilet bowl, Transmitting means for transmitting a radio wave to the space inside the ball portion, receiving means for receiving a reflected wave of the radio wave transmitted by the transmitting means, frequency of the signal received by the receiving means and signal transmitted by the transmitting means Difference detection means for generating a difference signal according to the difference with the frequency of, and a Doppler sensor consisting of a frequency analysis means for frequency analysis the output of the difference detection means is installed, the urine release time from the output of this Doppler sensor A toilet bowl cleaning system, which is calculated, and the energization of the silver-containing electrode is controlled based on the calculated value. 2. The toilet bowl cleaning system according to claim 1, wherein the transmitting means of the Doppler sensor transmits an electric wave from an upper portion of the toilet in a direction substantially parallel to the inner wall surface of the ball portion, and emits an electric wave reflected by the discharged urine. A toilet bowl cleaning system, wherein the presence or absence of urination is detected by receiving by the receiving means. 3. The toilet bowl cleaning system according to claim 1, wherein the urine volume is calculated from the urine release time during which urine is detected. 4. The toilet bowl cleaning system according to claim 1, wherein the valve is opened and the silver-containing electrode is energized after a lapse of a predetermined time from the previous discharge of the silver ion cleaning water. A toilet flushing system for discharging ion-cleaning water, wherein a current value applied to the silver-containing electrode at this time is determined by a total sum of urine release times detected during the predetermined time. 5. The toilet bowl cleaning system according to any one of claims 1 to 3, when a predetermined time has passed from the previous discharge of the silver ion cleaning water, the valve is opened and the silver-containing electrode is energized to supply silver. Ion cleaning water is discharged, and the duration of energization of the silver-containing electrode and the opening time of the valve are determined by the sum total of the urine release time detected during the predetermined time. system. 6. The toilet bowl cleaning system according to claim 4, wherein the predetermined time until the next spouting of the silver ion cleaning water is changed according to the sum of the urine release times. 7. The toilet bowl cleaning system according to claim 1, wherein when the Doppler sensor detects that the user has left the toilet bowl after urinating,
A toilet bowl cleaning system, wherein when the total urine release time exceeds a certain value, the valve is opened and the silver-containing electrode is energized to discharge silver ion cleaning water. 8. The toilet bowl cleaning system according to claim 1, wherein the signal is transmitted from the transmitting means when the valve is opened and the silver-containing electrode is energized to discharge silver ion cleaning water. When a means for transmitting a predetermined signal different from the above is provided, and the predetermined signal is received by the receiving means, the valve is opened and the silver-containing electrode is energized to discharge silver ion cleaning water. Toilet bowl cleaning system that allows the toilet bowls to perform the silver ion flush water spouting synchronously.