JP2010203044A - Faucet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a faucet device for achieving the accurate stop of water and the continuation of water ejection. <P>SOLUTION: This faucet device includes a water ejecting part, a water receiving part which receives a flow of water ejected from the water ejecting part, a sensor which collects information on a body-to-be-detected as a detection signal by the transmission and reception of an electric wave, and a control unit which controls the ejection and stop of the water by opening and closing a valve, on the basis of the detection signal from the sensor. The sensor, which is installed on the lateral surface of the water receiving part, emits the electric wave by being inclined in the direction of a lateral surface on which the water ejecting part is installed, with respect to the approximately vertical direction of the lateral surface of the installed water receiving part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a faucet device that controls water discharge using radio waves such as microwaves in a faucet device provided with a sensor unit.

Conventionally, in a faucet device equipped with a sensor, it has been common to determine the presence or absence of a user or an object to be detected by a sensor unit, and to control water discharge based on the determination result. As a result, for example, in a faucet device used by various users such as public facilities, the sensor unit is installed in the faucet device body, and the presence or absence of hand insertion is determined to control spitting water In addition, it is possible to stop water without manually operating the operation unit for operating the water stop, and it is possible to ensure the hygiene of the user.
However, if water discharge control is performed by determining the presence or absence of a user or a body to be detected, water discharge will be started even if the hand or the body to be detected passes by the vicinity of the faucet device by chance. For this reason, it is difficult to perform work that does not want to use water in the vicinity of the faucet device.

In addition, a sensor part is provided in the water receiving part that receives the water discharged from the water faucet device, the presence or absence of an object inside the water receiving part is detected by the sensor part, and the water stop water of the water faucet apparatus is based on the detection result. There is what performs control (for example, refer to patent documents 1).
However, as in Patent Document 1, when the determination of spout water is made based on the presence or absence of an object inside the water receiving part, for example, when a tableware or cooking utensil is placed in the sink that is the water receiving part, as in the kitchen, Since a placed object is detected and water discharge is started, there is a possibility that water discharge starts even in a scene where water is not desired.

Japanese Utility Model Publication No. 61-75570

  The present invention has been made to solve the above-described problems, and provides a water faucet device for realizing water stop and water discharge continuation with higher accuracy.

  In order to achieve the above-described object, according to one aspect of the present invention, a water discharge unit, a water receiving unit that receives a water discharge flow from the water discharge unit, and information on a detection target by transmitting and receiving radio waves are used as detection signals. A faucet device having a sensor unit for collecting and a control unit for controlling water discharge by opening and closing a valve based on a detection signal from the sensor unit, wherein the sensor unit is provided on a side surface of the water receiving unit. It is possible to provide a faucet device that is installed and radiates radio waves by being inclined in the direction of the side surface where the water discharge unit is installed with respect to the substantially vertical direction of the side of the installed water receiving unit.

  Moreover, according to 1 aspect of this invention, the said sensor part can provide the faucet device arrange | positioned with inclination with respect to the water receiving part side surface to install.

  Moreover, according to one aspect of the present invention, the sensor unit has a transmission plane having a transmission unit for transmitting radio waves, and the plane including the transmission plane and the side surface of the water receiving unit are larger than zero. Intersecting on an intersecting line at an angle smaller than degrees, the intersecting line being substantially parallel to the vertical direction, the transmitting radio wave is linearly polarized, and the excitation direction of the transmitting radio wave is the intersecting line Thus, it is possible to provide a faucet device in which the intensity of the radio wave transmitted through the side surface of the water receiving unit is higher than the intensity of the radio wave transmitted at the side surface of the water receiving unit.

  According to the present invention, the sensor unit is installed on the side wall of the water receiving unit, and radio waves are radiated from the vertical direction of the side surface of the water receiving unit to the side surface where the water discharging unit is installed. In addition, it is possible to prevent water discharge unintended by the user by erroneous detection due to the presence of an object inside the water receiving portion.

Schematic configuration diagram relating to the faucet device of the present invention (A) Top view of the schematic configuration of the faucet device in FIG. 1 (B) Configuration diagram of a transmitter for tilting the radio wave to be transmitted (A) Schematic configuration diagram in which the sensor unit is tilted to set the radio wave radiation direction (B) Relationship diagram between the water receiving unit side wall and the sensor unit Schematic configuration diagram of the faucet device of the present invention mounted in a system kitchen Schematic diagram of the location where water is disturbed while cleaning the object to be cleaned Schematic of the location of water turbulence that occurs when an instrument is placed inside the sink

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a schematic configuration diagram of the faucet device of the present invention. FIG. 1 shows a water discharge unit 1, a water receiving unit 2 that receives a water discharge flow 16 from the water discharge unit 1, a sensor unit 3 that collects information on a detection object as a detection signal by transmitting and receiving radio waves, and the sensor A faucet device having a control unit for controlling water discharge by opening and closing a valve based on a detection signal from the unit 3, wherein the sensor unit 3 is installed on the side surface 4 of the water receiving unit. In addition, radio waves are radiated in the direction of the side surface where the water discharge unit 1 is installed with respect to the substantially vertical direction 6 of the water receiving unit side surface 4.
In the present invention, the sensor unit is installed on the side wall of the water receiving unit, and radio waves are transmitted so as not to be substantially parallel to the water discharge flow discharged from the water discharge unit. If the radio wave radiated from the sensor unit is made substantially parallel to the traveling direction of the water discharge flow, the movement of the water discharge is detected only in the state of the water discharge flow. For this reason, even when only the water discharge flow is present, the detection signal from the sensor unit has an intensity, so that an action that makes it difficult to distinguish from the state in which the water faucet device is used occurs. There was a possibility that a false detection that water stoppage could not be performed in a state where it was only in the state occurred. Therefore, in the present invention, since the radio wave radiated from the sensor unit is transmitted so as not to be substantially parallel to the traveling direction of the water discharge flow, the detection signal in the state of the water discharge flow alone is not output. It becomes possible to prevent erroneous stop water due to the presence of water flow.

  Here, the radio wave radiated from the sensor unit 3 is reflected by the detected object, and the sensor unit 3 generates a detection signal for determining the state of the detected object based on the reflected radio wave. Depending on the radiation direction of the radio wave, various states of the detected object are detected. In particular, as in the water faucet device of the present invention, there are many cases where work is performed inside the water receiving unit 2, or there are many cleaning operations or operations without using water discharge in the vicinity of the water discharging unit 1. Even if it only performs, it will detect even the state of the to-be-detected object which is not necessary for the valve opening / closing control, and there is a possibility of performing water discharge at a timing not intended by the user. Therefore, in the present invention, by radiating the radio wave transmitted from the sensor unit 3 in the direction of the water discharge unit without being substantially parallel to the water discharge flow, for example, a user who uses the water faucet device of the present invention, Even when an operation that does not use water discharge is performed in the space between the water discharge unit 1 and the user, since the radio wave transmitted from the sensor unit 3 is directed toward the water discharge unit 1, a detection signal associated with the operation is generated. Because it is not detected or is detected as a very small signal, it can be distinguished from the detection signal that accompanies the operation of opening and closing the valve, and it is possible to prevent accidental water stoppage in situations that are not intended by the user. Is possible.

  Further, as shown in FIG. 2, the sensor unit 3 is installed in a direction substantially orthogonal to an extension line connecting the water discharge unit 1 and the user's standing position, and further, radio waves transmitted from the sensor unit 3 are transmitted. By transmitting in the direction of the water discharger 1, for example, when the user approaches the water faucet device of the present invention or when the user passes near the water faucet device of the present invention, The sensor unit 3 detects that a user is present in the vicinity of the side facing the unit 1, and eliminates problems such as accidental water discharge even when the user does not require water discharge. It becomes possible. Furthermore, by installing the sensor unit 3 in a direction substantially orthogonal to the extension line connecting the water discharge unit 1 and the user's standing position, and transmitting the radio wave transmitted from the sensor unit 3 toward the water discharge unit 1 direction, Movement of the user when the user does not need water discharge, especially movement in a direction substantially parallel to the extension line connecting the water discharge part 1 and the user's standing position (for example, hand-rubbed with soap on the hand) In a scene unintended by the user, the place where the operation is performed is far from the direction of the radio wave transmitted from the sensor unit 3. It becomes possible to prevent water discharge.

As in the faucet device of the present invention, in order to discriminate between an operation that requires water discharge and other operations, the transmission direction of the radio wave transmitted from the sensor unit 3 is Although it is very effective to change the operation that does not require water, it is very effective, but in order to identify other operations that require water stoppage, Limiting like this is also an effective means for suppressing erroneous detection.
For example, when the user needs to discharge water, an operation that does not occur when using a water faucet device such as holding the hand near the side surface where the sensor unit 3 is installed or bringing the hand close to the side surface. By detecting water discharge, it is possible to reduce water discharge erroneously for various operations that occur when the faucet device is used. Here, the sensor unit 3 has a very large amplitude value as a detection signal by holding the hand to the side surface on which the sensor unit 3 is installed, or by moving the hand close, and in the case of the hand holding, a very low frequency band. (For example, 0 to about 10 Hz) can output a detection signal, and in approaching the hand, the amplitude value of the detection signal gradually increases, and accordingly the frequency band of the detection signal tends to gradually decrease. By grasping such fluctuations in the amplitude value and frequency of the detection signal, it is possible to easily distinguish from other operations. Furthermore, since it is possible to prevent the water discharge from continuing with respect to the movement of the water discharge flow by transmitting the radio wave transmitted from the sensor unit so as not to be substantially parallel to the water discharge flow, the water discharge unit is used. In addition to unintended movement of the human body, it is possible to prevent false detection due to water discharge discharged from the water discharge unit.

  In addition, for example, when the user needs to stop water, the sensor unit 3 can be held by holding or approaching the detected body with respect to the side surface on which the sensor unit 3 is installed in the same manner as the water discharge operation. In the same way as described above, it is possible to determine that the operation is to stop the water with fluctuations in the amplitude value and frequency of the detection signal, and therefore, with other operations that occur when using the faucet device. Since identification can be performed easily, erroneous water stoppage can be reduced in a scene where water stoppage is not required. Furthermore, it is possible to control to stop the water according to the usage status of the discharged water. In the faucet device of the present invention, radio waves are emitted in the direction of the side surface where the water discharge unit 1 is installed rather than the vertical direction 6 of the side surface where the sensor unit 3 is installed, and To radiate to intersect. By installing the sensor unit 3 in this way, when water discharge is used, the frequency of the water discharge is different from that of normal water discharge alone due to the disturbance of the shape of the water droplets or the water discharge flow 16 due to the collision with the detected object. The detection signal can be identified by the band. Thereby, it can be determined that the user needs water discharge when the disturbance 18 of the water discharge occurs, and it can be determined that the water discharge is not used when the detection signal of only the water discharge is output. Therefore, the water stop control can be performed by the difference in the detection signal depending on the state of the water discharge flow 16. When such water stop control is performed, it is possible for the user to stop the water without performing an operation on the sensor unit 3 in order to stop the water separately. It becomes possible to stop the water without giving a load. Furthermore, since it is possible to prevent the water discharge from continuing with respect to the movement of the water discharge flow by transmitting the radio wave transmitted from the sensor unit so as not to be substantially parallel to the water discharge flow, the water discharge unit is used. In addition to unintended movement of the human body, it is possible to prevent false detection due to water discharge discharged from the water discharge unit.

  Next, FIG. 2 shows a top view of FIG. The radio wave from the sensor unit 3 radiates the radio wave by being inclined in the direction of the water discharge unit 1 with respect to the vertical direction 6 of the water receiving unit side surface 4 where the sensor unit 3 is installed. As a result, the radio waves radiated from the sensor unit can be transmitted and received without being substantially parallel to the water discharge flow discharged from the water discharge unit, and thus erroneously detected by the movement of the water discharge flow alone. In addition, the movement of the user's body, the movement of the hand, and the movement of the object held by the user are detected when the faucet device is used near the water discharge unit 1. Since it is possible to detect the state of the object to be cleaned without having to do so, it becomes difficult to detect the movement of the object other than the movement of the object to be cleaned that is desired to be detected by the sensor unit 3, and it is possible to reduce false detection. . At this time, the movement of the object to be cleaned detected by the sensor unit 3 is, for example, an operation on the sensor unit 3 such as a hand or an object to be cleaned in the vicinity of the side wall where the sensor unit 3 is installed or approaching when water discharge is started. When stopping water, the sensor unit 3 is similar to the method for detecting whether or not the water discharge flow 16 discharged from the water discharge unit 1 is disturbed, or when water discharge is started. The sensor unit 3 further detects other movements in the water receiving unit 2 by detecting the movement of the operation on the sensor unit 3 such as the stationary or approaching of the hand or the object to be cleaned in the vicinity of the side wall where the water is installed. It becomes possible to suppress the erroneous discharge water generated by this.

  Here, in FIG. 2, in order to transmit the radio wave transmitted from the sensor unit 3 in the side surface direction where the water discharge unit 1 is installed, the radio wave transmitted from the sensor unit 3 is radiated obliquely, The structure which installed the transmission means which transmits / receives an electromagnetic wave substantially in parallel with the water-receiving part side surface 4 is shown. In order to incline the radio wave transmitted from the sensor unit 3, it is possible to control the transmission direction of the radio wave by configuring the transmission means (for example, an antenna) installed in the sensor unit 3. Therefore, in the present embodiment, a description will be given of a configuration in which the transmission unit of the sensor unit 3 uses a patch antenna configured with a pattern on a substrate. The patch antenna provides a phase difference to the radio waves supplied from the sensor unit 3 and radiates radio waves having different phase differences from the antenna, so that the radio waves radiated from the antenna are transmitted in a predetermined direction. For example, as shown in FIG. 2B, in a patch antenna using two antenna elements 8, radio waves supplied from the sensor unit 3 pass through the transmission line 9 and are supplied to the antenna element 8. By changing the length of the transmission line 9 connected to one antenna element 8, the phase of the radio wave supplied to one antenna element 8 is delayed, so that there is a phase difference between the radio waves radiated from the two antenna elements 8. (In FIG. 2B, the phase of the radio wave supplied to the right antenna element 8 is delayed). Due to this phase difference, radio waves are tilted and radiated in a direction in which the phase is delayed, so that the sensor unit 3 can be tilted in a predetermined direction even when the sensor unit 3 is installed substantially parallel to the water receiving unit side surface 4. In addition, since the sensor unit 3 can be installed on the side wall, the construction is facilitated.

  In FIG. 3, the sensor unit 3 itself is tilted and installed at an angle between the transmission unit of the sensor unit and the water receiving unit side wall 4, so that the radio wave radiated from the sensor unit 3 is discharged from the water discharging unit 1. It shows about the structure which turns to the side direction in which is installed. In the case where the sensor unit 3 is inclined and the radio wave from the sensor unit 3 is inclined, in the space generated between the sensor unit 3 and the side wall as shown in FIG. The distance will be different lengths. Thus, when it installs so that the distance between the sensor unit 3 and the side wall may be different, the radio wave transmitted from the sensor unit 3 is reflected by the side wall when attempting to pass through the side wall, and the radio wave is transmitted in a predetermined direction. Cannot be transmitted, or a predetermined electric power cannot be supplied to a place to be detected because radio waves are attenuated. Therefore, in the present embodiment, the sensor unit 3 is installed and transmits radio waves so that the transmission plane provided in the sensor unit 3 forms an acute angle with the water receiving unit side wall 4 and intersects on the intersection line. The configuration will be described.

  In the present embodiment, the sensor unit 3 is installed at an acute angle so as to intersect the water receiving unit side wall 4 on the crossing line, the crossing line is substantially parallel to the vertical direction 6 of the water receiving unit side wall 4, and The excitation direction 11 of the radio wave to be transmitted is installed so as to be substantially orthogonal. Here, the radio wave transmitted from the sensor unit 3 is linearly polarized. Since the transmitted radio wave is a linearly polarized wave, the radio wave excitation direction 11 is present in a certain direction. As shown in FIG. 3B, when the sensor unit 3 is installed on the water receiving unit side wall 4 so as to cross the crossing line, and the crossing line and the excitation direction 11 are set to be substantially parallel, the radio wave is in the excitation direction. 11 in the transmission region with respect to a direction substantially parallel to 11 (in this embodiment, the transmission distance of the radio wave passing through the space between the sensor unit 3 and the water receiving unit side wall 4) If it is installed so that the line and the excitation direction 11 are substantially parallel, the transmission distance in the space between the sensor unit 3 and the water receiving unit side wall 4 varies depending on the location, so that the radio wave transmitted to the water receiving unit side wall 4 is When passing through the water receiving unit side wall 4, the light receiving unit side wall 4 reflects the light, and the amount of radio waves passing through the water receiving unit side wall 4 becomes smaller than the amount of radio waves reflected by the water receiving unit side wall 4.

  Therefore, as in the embodiment of the present invention, the radio wave passing through the space generated between the sensor unit 3 and the water receiving unit 2 by arranging the sensors so that the intersection line and the excitation direction 11 are substantially orthogonal. However, even if the passing distance varies depending on the location, since the radio wave travels straight, the amount of reflection on the water receiving unit side wall 4 is reduced when passing through the water receiving unit side wall 4, and many radio waves are transmitted. Can pass through the water receiving portion side wall 4, so that it is possible to radiate radio waves inclined toward the side wall where the water discharge portion 1 of the present invention is installed, and the intensity of transmitted radio waves at a predetermined location can be reduced. Therefore, it is possible to reliably detect the movement of the object to be cleaned in a predetermined place without detecting an operation that the object does not want to detect. Furthermore, in the case of bending in a predetermined direction when radio waves are radiated from the sensor unit 3, it is necessary to individually design the sensor for the equipment to be installed. By using this method, the sensor unit 3 is installed. Even if the equipment to be used is different and the direction in which radio waves are radiated differs, it is possible to obtain predetermined detection performance by changing the installation angle without designing the sensor unit 3 individually. It becomes possible to easily mount it on the camera.

Next, an embodiment in which the faucet device of the present invention is mounted on a kitchen will be described. In FIG. 4, the sensor unit 3 is mounted on a sink which is a water receiving unit of the kitchen, and radio waves are radiated in a direction in which the water discharge unit 1 is installed rather than the vertical direction 6 with respect to the sink side wall in which the sensor unit 3 is installed. The configuration is shown.
In a kitchen, a scene where a faucet is used is generally used in a place facing the water discharge unit 1, but in the work space 14 extending to the sink side wall, processing (cutting, mixing, etc.) of ingredients ), The water discharged from the water discharger 1 is often used at a location facing the work space 14. Therefore, when the faucet device of the present invention is provided to the kitchen, the sensor unit 3 is provided on the sink side wall adjacent to the work space 14, and the radio wave transmitted from the sensor unit 3 is radiated toward the rear of the kitchen. . By radiating radio waves toward the back of the kitchen, for example, when cleaning cooking utensils at a location facing the water discharger 1, the radio waves are transmitted behind the location where the utensils are moved or rotated. Since it becomes possible to radiate, it is possible to detect that the sensor unit 3 detects such a cleaning operation and to prevent the user from discharging water at an unexpected timing. In addition, the movement of the faucet device user (the movement of the hand, the movement of the head, the twist of the body, etc.) in the place facing the water discharge unit 1 and the movement (passing, approaching) of the person in the place facing the water discharge unit 1 It is possible to increase the convenience during use because it is possible to suppress the erroneous water discharge / water stoppage by detecting the sensor unit 3 and the like. Furthermore, by installing the sensor unit on the side wall in the left-right direction of the sink, it is possible to transmit radio waves without being substantially parallel to the water discharge flow discharged from the water discharge unit. Thereby, since it becomes possible to suppress detecting in a sensor part the speed generated only in the state of the water discharge generated when the user finishes washing of the cooking utensils etc., only the water discharge flow It is possible to prevent continuation of water discharge by detecting the state of the water, so that it is possible to avoid the act of waiting for the user to stop water after the end of washing, and cooking can proceed smoothly. Become.

  Further, the sensor unit 3 detects that the hand is substantially stationary in the vicinity where the sensor unit 3 is installed, or detects that the hand is approached in the vicinity where the sensor unit 3 is installed. Since the sensor unit 3 is installed on the sink side surface adjacent to the work space 14 by using the method for controlling the water discharge, the water discharge operation can be performed not only from the place facing the water discharge unit 1 but also from the work space 14. Since it becomes possible, it becomes possible to use water discharge without moving to the place which opposes the water discharge part 1 during a cooking operation. Furthermore, the sensor unit 3 is installed on the side of the sink so that the approach of the object (the intensity of the detection signal gradually increases and the frequency decreases) or almost stationary (the intensity of the detection signal increases greatly and a signal with a very low frequency is generated). Since it is configured to start water discharge by detecting (output), it is possible to distinguish from movements of cooking utensils and user movements that occur during cooking work, so it is possible to reduce false detection in water discharge It becomes.

  Further, the sensor unit 3 detects the presence or absence of the turbulence 18 in the water discharge flow, and uses a control system in which water discharge is continued when the turbulence 18 occurs, and water is stopped when the turbulence 18 does not occur. In this case, it is possible to start the next cooking work without performing a separate water stop operation after the user finishes the cleaning operation, thereby shortening the cooking work time and reducing the load on the user's operation. It can also be reduced. At this time, in the present invention, since the radio wave is radiated in the direction of the side surface where the water discharge unit 1 is installed, the turbulence of the water discharge generated when the user cleans the object to be cleaned as shown in FIG. Since it flows in the direction of the water discharge portion and further falls as a water mass below the sink, it is possible to provide a state of water flow different from the state of only the water discharge flow in the direction of transmitting radio waves. Therefore, it becomes easier to detect the turbulence 18 of the water discharge flow, and since the water flow is in a form different from the water discharge flow, it is easy to distinguish only the water discharge flow, and the water stop control is surely performed except during use. Is possible. In addition, there is a possibility that false detection may occur due to disturbance 18 in the water discharge flow caused by leaving the cooking utensil inside the sink and the water discharge colliding with the left cooking utensil. In a possible faucet device, the landing point on the sink bottom surface is in front of the sink rather than the place where the sensor unit 3 is installed. Since the disturbance 18 of the water discharge flow is less likely to occur in the direction of the radio wave, it is possible to prevent water discharge from continuing due to erroneous detection.

In addition, the water receiving part side wall 4 refers to the wall surface installed around the water receiving part bottom face 7 where the water discharge flow 16 from the water discharging part 1 lands. In addition, as in the present invention, since the radio wave is radiated and radiated from the vertical direction 6 of the water receiving unit side wall 4 where the sensor unit 3 is installed to the side wall direction where the water discharging unit 1 is installed, the water receiving unit 2 of the present invention. Is a side wall other than the side wall on which the water discharge unit 1 is installed or the side wall on which the water discharge unit 1 is installed.
Furthermore, when the side wall on which the sensor of the water receiving unit 2 is installed is not a planar shape, for example, has an R shape, the side wall on which the sensor unit 3 is installed and the side of the side wall adjacent to the sensor unit 3 By radiating radio waves inclining from the vertical direction 6 toward the water discharger 1, it is possible to obtain the same effect as when the side walls are flat.

As described above, in the faucet device of the present invention, by emitting radio waves in the direction of the side surface where the water discharge unit 1 is installed with respect to the vertical direction 6 of the water receiving unit side wall 4 where the sensor unit 3 is installed, the sensor The radio waves transmitted from the water supply section can be transmitted without being substantially parallel to the water discharge flow discharged from the water discharge section. It is possible to perform water control and to suppress detection by the sensor unit 3 for an operation that does not require water discharge frequently generated at a place facing the water discharge unit 1. Therefore, it becomes possible to reduce the spitting water at a timing not intended by the user. In addition, since the radio wave is directed toward the water discharger, it is possible to reduce the detection of the movement of the human body in the vicinity of the faucet device (especially, passing, approaching, moving away) by the sensor unit 3, so It is also possible to prevent erroneous water discharge when a person who does not use the device moves.
Furthermore, the combination with an algorithm for controlling the water discharge can further suppress false detection and identify the motion of the detected object.

DESCRIPTION OF SYMBOLS 1 ... Water discharging part, 2 ... Water receiving part (a sink in the case of a kitchen), 3 ... Sensor part, 4 ... Water receiving part side wall, 5 ... Radio wave transmission direction, 6 ... Vertical direction, 7 ... Bottom part of water receiving part, 8 ... Antenna element, 9 ... Transmission line, 10 ... Direction in which radio wave is tilted, 11 ... Excitation direction, 12, 13 ... Distance between sensor part and side wall of receiving part, 14 ... Work space, 15 ... Cooking device, 16 ... Discharge Water flow, 17 ... Cookware, 18 ... Disturbance of water discharge

Claims (3)

A water discharge part,
A water receiving portion for receiving a water discharge flow from the water discharging portion;
A sensor unit that collects information of the detected object as a detection signal by transmitting and receiving radio waves;
Based on the detection signal from the sensor unit, a control unit that controls the water discharge by opening and closing the valve;
A faucet device comprising:
The sensor unit is installed on the side surface of the water receiving unit, and radiates radio waves by tilting in the direction of the side surface on which the water discharging unit is installed with respect to the substantially vertical direction of the side surface of the installed water receiving unit. . The faucet device according to claim 1, wherein the sensor unit is disposed to be inclined with respect to a side surface of the water receiving unit to be installed. The sensor unit has a transmission plane having a transmission unit for transmitting radio waves,
The plane including the transmission plane and the side surface of the water receiving part intersect on an intersection line at an angle larger than zero and smaller than 90 degrees,
The intersecting line is substantially parallel to the vertical direction,
The transmitted radio wave is linearly polarized,
The excitation direction of the radio wave to be transmitted is substantially perpendicular to the intersection line,
3. The faucet device according to claim 1, wherein an intensity of a radio wave transmitted through the side of the water receiving unit is higher than an intensity of the radio wave transmitted at the side of the water receiving unit.

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