JP7004135B2 - Faucet system - Google Patents

Description

The present invention relates to a faucet system capable of utilizing various power sources.

Conventionally, various faucet systems have been developed. Some of them utilize the kinetic energy of the discharged water (mainly based on water pressure and / or gravity) for power generation.

For example, in some washbasin automatic faucet systems, the solenoid valve for water discharge is opened by the human body sensor sensing the human hand, but the kinetic energy of the discharged water can be used for power generation. Such a faucet system is disclosed in Patent Document 1 by the applicant.

In addition, some automatic cleaning urinals determine that the state is after use by detecting the separation of a person from the human body sensor, and control the solenoid valve for water discharge, but the movement of the water discharged. Energy can be used for power generation. Such a faucet system is disclosed in Patent Document 2 by the applicant.

Also, in some flush toilets, the solenoid valve for water discharge is controlled by the human body sensor detecting the separation of the hand after "holding the hand" of the person, but it also generates the kinetic energy of the discharged water. Can be used for. Such a faucet system is disclosed in, for example, Patent Document 3 and Patent Document 4 by the applicant.

Japanese Unexamined Patent Publication No. 2012-72619 Japanese Unexamined Patent Publication No. 2016-102365 Japanese Unexamined Patent Publication No. 2011-74618 Japanese Unexamined Patent Publication No. 2015-59357

In the conventional faucet system, the control unit for controlling the solenoid valve is integrated with the power supply circuit unit (circuit unit related to power supply). That is, the power supply circuit unit is specified according to the type of power supply to be used, and the details of the specifications of the control unit are designed and integrally mounted so as to match the characteristics of the power supply circuit unit.

Here, if it is possible to design a control unit that can be shared with a plurality of types of power sources, it is considered that various costs related to the control unit can be suppressed. The inventor of the present invention has been diligently studying such a possibility.

According to the study of the present inventor, it is possible to realize commonality for some control functions, but for some control functions, different modes are prepared according to the type (characteristic) of the power supply. It was found that it is preferable to keep it.

Therefore, when designing a control unit that can be shared by a plurality of types of power sources, it is important to have a function of determining the type of power source that is the source of power to the control unit.

Further, according to the study of the present inventor, by capturing the timing at which the power supply to the control unit is started, it is possible to effectively determine the type of the power source that is the power supply source to the control unit. It was found.

The present invention has been made based on the above findings. An object of the present invention is to provide a faucet system provided with a control unit that can be shared by a plurality of types of power sources.

The present invention comprises a solenoid valve that opens and closes a water supply channel leading to a spout, and a control unit that can be connected to a plurality of types of power sources and controls the solenoid valve by using electric power from the connected power sources. The control unit has a discriminating unit that determines the type of the power source that is the source of the power supply based on the timing at which the power supply to the control unit is started , and the discriminating unit has the control unit. The faucet system is characterized in that the type of the power source that is the source of the electric power is determined based on the timing at which the electric power is started to be supplied and the open / closed state of the solenoid valve .

According to the present invention, the control unit has a discriminating unit that determines the type of the power source that is the source of the power supply based on the timing at which the power supply is started. It is possible to prepare different modes according to the characteristics of the above.

According to the present inventor, control functions for which it is desirable to prepare different modes according to the type of power source include timing control of communication or notification to an external remote controller, access control to a storage unit such as a memory, and the like. (These controls are preferably performed during power generation or after the completion of the power generation charging circuit (part of the power supply circuit section)).

Further, according to the present invention, the type of the power source can be more accurately determined by considering the open / closed state of the solenoid valve in the determination of the power source.

Further, in this case, it is preferable that the discriminant unit discriminates the type of the power source that is the power supply source after the solenoid valve is opened or closed a predetermined number of times.

According to this, since the power supply is discriminated in a state where the operation of the faucet system is stable, the type of the power supply can be discriminated more accurately.

Further, the present invention includes a solenoid valve that opens and closes a water supply passage leading to a spout, and a control unit that can be connected to a plurality of types of power sources and controls the solenoid valve by using electric power from the connected power sources. The control unit includes, The control unit controls the solenoid valve by using the electric power from the power source connected to the control unit based on the detection state of the human body sensing sensor. The faucet is characterized in that the type of the power source that is the source of the electric power is determined based on the timing at which the electric power is started to be supplied to the control unit and the detection state of the human body sensing sensor. It is a system.

According to the present invention , the type of the power source can be more accurately determined by considering the detection state of the human body sensing sensor in the determination of the power source.

Further, in this case, the discriminating unit may determine the type of the power source that is the power supply source after the human body sensing sensor detects or does not detect the human body a predetermined number of times. preferable.

According to this, since the power supply is discriminated in a state where the operation of the faucet system is stable, the type of the power supply can be discriminated more accurately.

Further, the faucet system according to the present invention further includes a second sensor different from the human body sensing sensor, and the control unit is a power source that is a power supply source based on the detection state of the second sensor. The type may be determined.
Alternatively, the present invention includes an electromagnetic valve that opens and closes a water supply path leading to a spout, and a control unit that can be connected to a plurality of types of power sources and controls the electromagnetic valve by using electric power from the connected power sources. A human body sensing sensor for detecting a human body and a second sensor different from the human body sensing sensor are provided, and the control unit is a power supply source based on the timing at which power is started to be supplied to the control unit. It has a discriminating unit that determines the type of a certain power source, and the control unit uses the electric power from the power source connected to the control unit based on the detection state of the human body sensing sensor to operate the electromagnetic valve. The water faucet is controlled, and the control unit determines the type of the power source that is the source of the electric power based on the detection state of the second sensor. It is a system.

In each of the above inventions, the discriminating unit is, for example, based on at least one of the magnitude, voltage, and current of the electric power to be supplied to the control unit, the power source that is the power supply source of the electric power. The type is determined.

Further, the present invention includes a solenoid valve that opens and closes a water supply passage leading to a spout, and a control unit that can be connected to a plurality of types of power sources and controls the solenoid valve by using electric power from the connected power sources. The discriminant unit includes a human body sensing sensor for detecting the human body, and the discriminating unit is based on the timing at which power is started to be supplied to the control unit, the open / closed state of the solenoid valve, and the detection state of the human body sensing sensor. It is a faucet system characterized in that it is designed to determine the type of power source that is the source of electric power.

According to this, in the determination of the power supply, the type of the power supply is more accurately determined by considering the timing at which the power supply to the control unit is started, the open / closed state of the solenoid valve, and the detection state of the human body sensing sensor. be able to.

Further, it is preferable that the power supply circuit unit for converting the energy supplied from the power supply into the electric power that can be supplied to the control unit is further provided, and the power supply circuit unit and the control unit are separated from each other.

According to this, even when changing from the already connected power supply to a different power supply, there is no need to change the control unit at all.

According to the present invention, the control unit has a discriminating unit that determines the type of the power source that is the source of the power supply based on the timing at which the power supply is started. It is possible to prepare different modes according to the characteristics of the above.

It is a schematic block diagram of the faucet system by one Embodiment of this invention in the embodiment which uses the commercial power source as a power source. It is a schematic block diagram of the faucet system by one Embodiment of this invention in the embodiment which uses a hydroelectric generator as a power source. It is a schematic block diagram of the faucet system by one Embodiment of this invention in the aspect which uses a solar power generator as a power source. It is a schematic block diagram of the faucet system by one Embodiment of this invention in the embodiment which uses the wind power generator as a power source. It is a block diagram which shows an example of the details of a power circuit part. It is a flowchart which shows an example (first form) of the discrimination method by a discrimination part. It is a flowchart which shows the other example (second form) of the discrimination method by a discrimination part. It is a flowchart which shows the other example (third form) of the discrimination method by a discrimination part.

Next, a faucet system according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 to 4 are schematic block diagrams of a faucet system 10 according to an embodiment of the present invention. FIG. 1 shows an embodiment in which a commercial power source is used as a power source, and the faucet system 10 is connected to a commercial power source outlet 21 and a control unit 12 via a power supply circuit unit 22 for the commercial power source. FIG. 2 shows an embodiment in which a hydroelectric generator is used as a power source, and the faucet system 10 is connected to the hydroelectric generator 31 to the control unit 12 via a power supply circuit unit 32 for the hydroelectric generator. .. FIG. 3 shows an embodiment in which a photovoltaic power generator is used as a power source, and the faucet system 10 is connected to the photovoltaic power generator 41 to the control unit 12 via the power supply circuit unit 42 for the photovoltaic power generator. Has been done. FIG. 4 shows an embodiment in which a wind power generator is used as a power source, and the faucet system 10 is connected to the wind power generator 51 to the control unit 12 via a power supply circuit unit 52 for the wind power generator. ..

As shown in FIGS. 1 to 4, the faucet system 10 of the present embodiment can be used as a washbasin faucet system (see Patent Document 1) or a flush toilet faucet system (see Patent Documents 2 to 4). It can be used, and it can be connected to a plurality of types of power sources (via various power supply circuits) and the solenoid valve 11 that opens and closes the water supply channel leading to the spout, and uses the power from the connected power sources. A control unit 12 for controlling the solenoid valve 11 is provided.

Further, the faucet system 10 of the present embodiment further includes a human body sensing sensor 13 for detecting a human body, and the control unit 12 is from a power source connected to the control unit 12 based on the detection state of the human body sensing sensor 13. The solenoid valve 11 is controlled by using electric power.

Then, the control unit 12 has a determination unit 12j that determines the type of the power source that is the supply source of the electric power based on the timing at which the electric power is started to be supplied to the control unit 12. Further, the control unit 12 of the present embodiment is also connected to the backup battery 15 as a power source for backup.

As shown in FIG. 5, for example, the power supply circuit unit 32 for a hydraulic generator includes a power generation voltage limiting circuit that limits the magnitude of the generated power to a predetermined voltage or less, and a charging element such as an electric double layer capacitor. It has a charging circuit made of, and a booster circuit made of a DC / DC converter or the like. The power supply circuit units 42 and 52 for other generators also have substantially the same circuits as the power supply circuit unit 32. As the power supply circuit unit 22 for commercial power supply, a power supply circuit including an AC / DC converter or the like is used. As described above, the various power supply circuit units play a role of converting the energy supplied from the various power sources into the electric power that can be supplied to the control unit 12.

(First form of discrimination flow)
The determination unit 12j of the present embodiment determines the type of the power source that is the source of the electric power in consideration of both the timing at which the electric power is started to be supplied to the control unit 12 and the open / closed state of the solenoid valve 11. It has become like.

Specifically, as shown in FIG. 6, first, it is determined whether or not the solenoid valve is in the open state (water discharge) at the timing when the power supply to the control unit 12 is started (STEP 11). ..

If the power supply is started while the solenoid valve is in the open state (drainage) (“Yes” in STEP 11), it can be determined that power generation is performed using the kinetic energy of the discharge water. In this case, it can be determined that the type of power source is "hydroelectric generator".

If the power supply is not started while the solenoid valve is in the open state (water discharge) (“No” in STEP 11), it can be determined that power generation using the kinetic energy of the water discharge is not performed, so that the water discharge is continued. Whether or not power is supplied is determined regardless of the state (STEP 12).

If the electric power is supplied regardless of the water discharge state (“Yes” in STEP 12), it can be determined that the electric power is supplied by a power source different from that of the “hydroelectric generator”, and subsequently, the magnitude of the electric power is large. Is determined (STEP 13).

If power larger than the threshold value is supplied (“Yes” in STEP 13), it can be determined that the type of power supply in that case is “commercial power supply”. On the other hand, if a small amount of electric power less than the threshold value is supplied (“No” in STEP 13), it can be determined that the type of power source in that case is “solar power generation module” or “wind power generation module”.

If power is not supplied from the power supply that should be connected (“No” in STEP 12), some kind of failure or abnormality is assumed, but if the backup battery 15 is provided as in this embodiment (STEP 14). In "Yes"), the degenerate operation (operation in the power saving mode) is carried out using the backup battery 15. When the backup battery 15 as in the present embodiment is not provided (“No” in STEP 14), the faucet system 10 is safely stopped, and for example, a notification operation for notifying an abnormality is performed.

As described above, the faucet system 10 of the present embodiment has a discriminating unit 12j for determining the type of the power source that is the source of the power supply to the control unit 12 based on the timing at which the power supply is started. Therefore, it is possible to prepare different modes for some control functions according to the characteristics of the power supply.

Therefore, for example, it is possible to select and implement a control mode suitable for each power source, such as timing control of communication or notification to an external remote controller, access control to a storage unit such as a memory, and the like.

Further, according to the faucet system 10 of the present embodiment, the discriminating unit 12j is a power supply source based on both the timing at which the power supply to the control unit 12 is started and the open / closed state of the solenoid valve 11. Since the type of power supply is discriminated, the type of power supply can be discriminated more accurately.

The discrimination flow of FIG. 6 is preferably performed after the solenoid valve 11 is opened or closed a predetermined number of times (for example, twice) at the time of initial setting of the faucet system 10, for example. In this case, since the power source is determined in a state where the operation of the faucet system 10 is stable, the type of the power source can be determined more accurately. For example, when a power generation unit (power generation type power generation) is connected, there is a possibility that the power generation unit is not operating stably at the time of initial setting. Specifically, for example, in a hydroelectric power generation unit, when a power storage unit such as a capacitor is provided in the power supply circuit unit, it is desirable to determine the power supply in a state where the capacitor is sufficiently charged. In order to store the amount of charge to the capacitor, it is necessary to operate the water discharge multiple times, and for that purpose, it is necessary to operate the solenoid valve multiple times.

Further, the discrimination target in STEP 13 may be a voltage or a current instead of the magnitude of the electric power, or may be a combination thereof.

(Second form of discrimination flow)
Further, the discriminating unit 12j of the present embodiment considers both the timing at which the power is started to be supplied to the control unit 12 and the detection state of the human body sensing sensor 13, and the type of the power source that is the power supply source of the power. It is also possible to determine.

Specifically, as shown in FIG. 7, first, it is determined whether or not the human body sensing sensor 13 is sensing the human body at the timing when the power supply to the control unit 12 is started (STEP 21).

If the power supply is started while the human body sensing sensor 13 is sensing the human body (“Yes” in STEP 21), it can be determined that power is being generated during use and in the spouting water. It can be determined that the type of is a washbasin type "hydroelectric power generation module".

When the power supply is not started while the human body sensing sensor 13 is sensing the human body (“No” in STEP 21), it is determined whether or not the power supply is started after the human body sensing sensor 13 senses the human body (“No”). STEP22).

If the power supply is started after the human body is detected by the human body detection sensor 13 (“Yes” in STEP 22), it can be determined that power generation is being performed after use and during the spouting water, so the type of power supply in that case is cleaning. It can be determined that it is a toilet type "hydroelectric power generation module".

If the power supply is not started during and after the detection of the human body by the human body detection sensor 13 (“Yes” in STEP 22), it can be determined that the power generation using the kinetic energy of the spouting water is not generated. It is determined whether or not the electric power is supplied regardless of the water discharge state (STEP23).

If the electric power is supplied regardless of the detection state (“Yes” in STEP 23), it can be determined that the electric power is supplied by a power source different from that of the “hydropower generator”, and subsequently, the magnitude of the electric power is large. Is determined (STEP24).

If power larger than the threshold value is supplied (“Yes” in STEP 24), it can be determined that the type of power supply in that case is “commercial power supply”. On the other hand, if a small amount of power less than the threshold value is supplied (“No” in STEP 24), it can be determined that the type of power source in that case is “solar power generation module” or “wind power generation module”.

If power is not supplied from the power supply that should be connected (“No” in STEP 23), some kind of failure or abnormality is assumed, but if the backup battery 15 is provided as in this embodiment (STEP 25). In "Yes"), the degenerate operation (operation in the power saving mode) is carried out using the backup battery 15. When the backup battery 15 as in the present embodiment is not provided (“No” in STEP 25), the faucet system 10 is safely stopped, and for example, a notification operation for notifying an abnormality is performed.

According to the discrimination flow of FIG. 7, the discrimination unit 12j determines the type of the power source that is the power supply source of the power based on both the timing at which the power is started to be supplied to the control unit 12 and the detection state of the human body sensing sensor 13. Since it is designed to be discriminated, the type of power supply can be discriminated more accurately.

The discrimination flow of FIG. 7 is also preferably performed after the human body sensing sensor 13 has sensed or not sensed the human body a predetermined number of times (for example, twice) at the time of initial setting of the faucet system 10, for example. In this case, since the power source is determined in a state where the operation of the faucet system 10 is stable, the type of the power source can be determined more accurately. For example, when a power generation unit (power generation type power generation) is connected, there is a possibility that the power generation unit is not operating stably at the time of initial setting. Specifically, for example, in a hydroelectric power generation unit, when a power storage unit such as a capacitor is provided in the power supply circuit unit, it is desirable to determine the power supply in a state where the capacitor is sufficiently charged. In order to store the amount of charge to the capacitor, it is necessary to operate the water discharge multiple times, and for that purpose, it is necessary to operate the solenoid valve multiple times.

Further, the discrimination target in STEP 24 may be a voltage or a current instead of the magnitude of the electric power, or may be a combination thereof.

(Additional form of discrimination flow)
In each discrimination flow described with reference to FIGS. 6 and 7, additionally, a second sensor different from the human body sensing sensor 13 may be used, and the detection state of the second sensor may also be used for discrimination of the power supply. good. The second sensor is, for example, an illuminance sensor, a heat sensor, a vibration sensor, an electromagnetic sensor, or the like.

If the illuminance sensor is used in combination and the illuminance equal to or higher than the threshold value is detected at the timing when the power supply to the control unit 12 is started, it can be determined that the type of power supply in that case is "photovoltaic power generation module".

If a heat sensor is used in combination and a temperature equal to or higher than the threshold value is detected at the timing when power is started to be supplied to the control unit 12, it can be determined that the type of power supply in that case is "temperature difference power generation module".

If a vibration sensor is used in combination and vibration above the threshold value is detected at the timing when power is started to be supplied to the control unit 12, it can be determined that the type of power supply in that case is "vibration power generation module".

If an electromagnetic wave sensor is used in combination and an electromagnetic wave equal to or higher than the threshold value is detected at the timing when power is started to be supplied to the control unit 12, it can be determined that the type of power supply in that case is "wireless power supply module".

In this way, by using a sensor that is effective in discriminating the power supply, it is possible to discriminate the type of power supply in more detail.

(Third form of discrimination flow)
Further, the discriminating unit 12j of the present embodiment is a power supply source of the electric power in consideration of whether or not the solenoid valve is in the open state (water discharge) in addition to the detection state of the human body sensing sensor 13. It is also possible to determine the type of power supply.

Specifically, as shown in FIG. 8, when the power supply is started while the human body sensing sensor 13 is sensing the human body (“Yes” in STEP 21), the solenoid valve is in the open state (water discharge). If the power supply is started during (inside) (“Yes” in STEP211), it can be determined that power is being generated during use and in the spouting water, so the type of power supply in that case is the washbasin type. It can be determined that it is a "hydroelectric power generation module".

Further, as shown in FIG. 8, when the power supply is started while the human body sensing sensor 13 is sensing the human body (“Yes” in STEP 21), the electromagnetic valve is in the open state (water discharge). If the power supply is not started during () (“No” in STEP211), it can be determined that the type of power source in that case is “solar power generation module” or “wind power generation module”.

Specifically, if power is supplied during sensing and power is supplied to the spouting water, it is more certain that it is determined to be a washbasin type hydroelectric power generation than in the case of the flowchart of FIG. Can be further enhanced. On the other hand, if power is supplied during sensing but not during discharge, it can be determined that the power source is not hydroelectric power generation. Furthermore, since there is a state in which power is not supplied, it can be determined that the power supply is not a commercial power source. Then, it can be determined that the connected power source is inevitably a "solar power generation module" or a "wind power generation module". Since photovoltaic power generation cannot generate power when there is no light and wind power generation cannot generate power when there is no wind, the power supply timing is different from that of commercial power generation that is always supplied with power.

Further, as shown in FIG. 8, when the power supply is started after the human body is detected by the human body sensing sensor 13 (“Yes” in STEP 22), the electric power is generated while the solenoid valve is in the open state (drainage). If the supply has started (“Yes” in STEP221), it can be determined that power is being generated during use and in the spouting water, so the type of power supply in that case is the washing toilet type “hydroelectric power generation module”. It can be determined that there is.

Further, as shown in FIG. 8, when the power supply is started after the human body is detected by the human body detection sensor 13 (“Yes” in STEP 22), the power is generated while the electromagnetic valve is in the open state (drainage). If the supply has not started (“No” in STEP221), it can be determined that the type of power source in that case is “solar power generation module” or “wind power generation module”.

Specifically, if the power is supplied after the detection and the power is supplied to the spouting water, it is more certain that the power generation is determined to be a washing toilet type hydroelectric power generation, as compared with the case of the flowchart of FIG. It will be possible to increase it further. On the other hand, if the power is supplied after the detection, but the power is not supplied to the spouting water, it can be determined that the power source is not hydroelectric power generation. Furthermore, since there is a state in which power is not supplied, it can be determined that the power supply is not a commercial power source. Then, it can be determined that the connected power source is inevitably a "solar power generation module" or a "wind power generation module". Since photovoltaic power generation cannot generate power when there is no light and wind power generation cannot generate power when there is no wind, the power supply timing is different from that of commercial power generation that is always supplied with power.

Since the other parts of the flowchart of FIG. 8 are the same as those of the flowchart of FIG. 7, the description thereof will be omitted.

According to the discrimination flow of FIG. 8, the discrimination unit 12j is based on the timing at which the power supply to the control unit 12 is started, the detection state of the human body sensing sensor 13, and whether or not the solenoid valve is in the open state. Since the type of the power source that is the source of the power is determined, the type of the power source can be determined more accurately.

(Effect of separation configuration)
The configuration in which the power supply circuit unit and the control unit are separated has the following effects. That is, according to the configuration of the present invention in which various power supplies can be connected to the control unit, it is not necessary to change the control unit even when the power supply is changed.

For example, a case where the power is changed from the state where the power is supplied from the wind power generation unit to the hydroelectric power generation unit for some reason will be described.

If the power supply circuit unit and the control unit are not separated and are integrally configured, it is necessary to integrally change the power supply circuit unit and the control unit in order to change to the hydroelectric power generation unit. Therefore, the replacement work is troublesome and the work cost is high. On the other hand, if the power supply circuit unit and the control unit are separated, in order to change to the hydroelectric power generation unit, only the power supply circuit unit needs to be replaced, and the labor of work can be reduced.

Further, since the control unit according to the present invention is equipped with a function that can discriminate between various power sources, there is no need to confirm matching between the control unit and the power source and develop a program for that purpose, and a connected power source (for example, hydroelectric power generation) is not required. Optimal product operation for the unit) can always be guaranteed. The control unit according to the present invention can cope with even a power source newly developed in the future.

Due to the characteristics of products such as automatic faucets, a human body sensor and a solenoid valve are often provided as standard as a load unit. Therefore, as a parameter for discriminating the power source, the power source discrimination can be effectively performed by utilizing the state of the human body sensing sensor and the state of the solenoid valve in addition to the timing when the power supply is started.

10 Faucet system 11 Solenoid valve 12 Control unit 12j Discrimination unit 13 Human body detection sensor 15 Backup battery 21 Commercial power supply (outlet)
22 Power supply circuit section for commercial power supply 31 Hydroelectric generator 32 Power supply circuit section for hydroelectric generator 41 Solar power generator 42 Power supply circuit section for photovoltaic generator 51 Wind generator 52 Power supply circuit section for wind generator

Claims (9)

A solenoid valve that opens and closes the water supply channel leading to the spout,
A control unit that can be connected to multiple types of power sources and controls the solenoid valve using the power from the connected power sources.
Equipped with
The control unit has a discriminating unit that determines the type of the power source that is the source of the power supply based on the timing at which the power supply to the control unit is started.
The discriminating unit is characterized in that it discriminates the type of the power source that is the source of the power based on the timing at which the power is started to be supplied to the control unit and the open / closed state of the solenoid valve. Faucet system. The water according to claim 1, wherein the discriminating unit determines the type of the power source that is the source of the electric power after the solenoid valve is opened or closed a predetermined number of times. Plug system. A solenoid valve that opens and closes the water supply channel leading to the spout,
A control unit that can be connected to multiple types of power sources and controls the solenoid valve using the power from the connected power sources.
A human body sensor that detects the human body and
Equipped with
The control unit has a discriminating unit that determines the type of the power source that is the source of the power supply based on the timing at which the power supply to the control unit is started.
The control unit controls the solenoid valve by using the electric power from the power source connected to the control unit based on the detection state of the human body sensing sensor.
The discriminating unit is characterized in that it discriminates the type of the power source that is the source of the power based on the timing at which the power is started to be supplied to the control unit and the detection state of the human body sensing sensor. Faucet system. 3. The discriminating unit is characterized in that it discriminates the type of the power source that is the source of the electric power after the human body sensing sensor detects or does not detect the human body a predetermined number of times. Faucet system described in. Further equipped with a second sensor different from the human body sensing sensor,
The faucet according to claim 3 or 4, wherein the control unit determines the type of the power source that is the source of the electric power based on the detection state of the second sensor. system. A solenoid valve that opens and closes the water supply channel leading to the spout,
A control unit that can be connected to multiple types of power sources and controls the solenoid valve using the power from the connected power sources.
A human body sensor that detects the human body and
A second sensor different from the human body sensing sensor,
Equipped with
The control unit has a discriminating unit that determines the type of the power source that is the source of the power supply based on the timing at which the power supply to the control unit is started.
The control unit controls the solenoid valve by using the electric power from the power source connected to the control unit based on the detection state of the human body sensing sensor.
The faucet system is characterized in that the control unit determines the type of a power source that is a source of the electric power based on the detection state of the second sensor. The discriminating unit has come to discriminate the type of power source that is the source of the power based on at least one of the magnitude, voltage, and current of the electric power to be supplied to the control unit. The faucet system according to any one of claims 1 to 6, wherein the faucet system is provided. Further equipped with a human body detection sensor that detects the human body,
The discriminating unit determines the type of power source that is the source of the power based on the timing at which power is started to be supplied to the control unit, the open / closed state of the solenoid valve, and the detection state of the human body sensing sensor. The faucet system according to claim 1, wherein the faucet system is characterized by the above. Further provided with a power supply circuit unit that converts the energy supplied from the power supply into electric power that can be supplied to the control unit.
The faucet system according to any one of claims 1 to 8, wherein the power supply circuit unit and the control unit are separated from each other.

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