JP7004957B2 - Urinal device - Google Patents

Description

The present invention relates to a urinal device, and more particularly to a urinal device that cleans a bowl surface with spouted wash water.

Conventionally, as described in Patent Document 1, in the urinal device, the separation distance of the user is calculated based on two output signals having different phases obtained by the Doppler sensor, and the distance from the user's toilet body is calculated. Those who judge leaving are known.

Japanese Unexamined Patent Publication No. 2004-317143

However, in the urinal device described in Patent Document 1, when the first user finishes using the urinal body, the second user stands in front of the urinal body, and the first use There is a problem that it is not possible to determine the change of user from the first user to the second user in the situation where the person is changed to the second user.

In the situation of user change, the first user often moves to the side of the toilet bowl body because the second user is waiting behind the first user. In such a case, since the amount of change in the separation distance from the urinal body of the first user is small, there is a problem that the separation of the user cannot be sufficiently determined by the Doppler sensor.
On the other hand, in order to determine the separation of the user when the first user moves to the side of the toilet body, the amplitude values of the two output signals obtained by the Doppler sensor are measured, and the amplitude values of these amplitude values are measured. It was also considered to determine the user's separation by using the change. However, since the second user advances to the front of the urinal body so as to replace the first user, it is not possible to determine the separation of the first user by the change in the amplitude values of the two output signals. There was a challenge.

Therefore, in the present invention, when the first user finishes using the urinal body, the second user stands in front of the urinal body, and the first user to the second user In the situation where the urinal is changed to, the change of the user from the first user to the second user can be determined, and the cleaning of the urinal body of the first user after use can be performed. It is an object of the present invention to provide a urinal which can suppress that cleaning is not performed after the use of one user.

In order to solve the above-mentioned problems, the present invention is a urinal device for cleaning the bowl surface with the discharged washing water, and the urinal surface for receiving urine and the drain port portion provided at the bottom of the bowl surface. Urinal body equipped with, a water discharge device that supplies washing water to the bowl surface, a detection sensor that detects the user based on the reflected wave of the emitted radio waves, and the bowl according to the detection state of the detection sensor. A control unit that cleans the surface is provided, and the control unit cleans the bowl surface when it is determined that the first user is separated from the urinal body and is in a separated state. In one cleaning mode and in a state where the first user has determined that the urinal is not in the separated state, a second user different from the first user approaches the urinal body. It is characterized by having a second cleaning mode for executing cleaning of the bowl surface when it is determined that the bowl surface is in an approaching state.
According to the present invention configured as described above, the control unit has a first cleaning mode for performing cleaning of the bowl surface when it is determined that the first user has separated from the urinal body, and a first use. When it is determined that the person has not separated from the urinal body and a second user different from the first user has approached the urinal body, the bowl surface is washed. It has a second cleaning mode. Therefore, when the first user finishes using the urinal body, the second user stands in front of the urinal body and the first user is replaced by the second user. In, the control unit determines the change of the user from the first user to the second user by the second cleaning mode, and executes the cleaning after the use of the urinal body of the first user. It is possible to prevent the cleaning from being performed after the use of the first user.

In the present invention, preferably, the second cleaning mode of the control unit is based on the first signal obtained from the detection sensor and the second signal obtained in a state of being out of phase with the first signal. The approach distance of the second user to the urinal body is estimated, and when the approach distance exceeds a predetermined threshold value, it is determined that the second user is in the approach state.
According to the present invention configured as described above, the second cleaning mode is based on the first signal obtained from the detection sensor and the second signal obtained in a state of being out of phase with the first signal. The approach distance of the second user to the urinal body is estimated, and when this approach distance exceeds a predetermined threshold value, it is determined that the second user is in the approach state. Therefore, even if the first user makes a move that is difficult to determine that the urinal is in a detached state, the control unit may change the user so that the second user approaches the urinal body. With the second cleaning mode, it is possible to more reliably determine the change of user from the first user to the second user and perform cleaning after use of the urinal body of the first user. It is possible to further prevent the cleaning from being performed after the use of the first user.

In the present invention, preferably, the control unit estimates the separation speed of the first user based on the separation distance of the first user from the urinal body, and estimates the first user. When the separation speed of the user becomes larger than a predetermined threshold value, the measurement of the separation distance is started.
According to the present invention configured as described above, it is possible to more reliably determine the separation operation in which the first user moves from the urinal body at a separation speed that is larger than a predetermined threshold value. It is possible to more reliably determine the separation operation of the user. In addition, it is possible to prevent the first user from erroneously detecting an operation such as slight movement or slight movement during or before and after urination as a detachment operation.

In the present invention, preferably, the control unit estimates the approach speed of the second user based on the approach distance of the second user to the urinal body, and estimates the second user. When the approach speed of the user becomes larger than a predetermined threshold value, the measurement of the approach distance is started.
According to the present invention configured as described above, it is possible to more reliably determine the approaching motion in which the second user moves toward the urinal body at an approaching speed that is larger than a predetermined threshold value. It is possible to more reliably determine the change of user. Therefore, the control unit more reliably determines the change of user from the first user to the second user by the second cleaning mode, and after using the urinal body of the first user. Cleaning can be performed and it can be prevented that cleaning is not performed after use by the first user.

In the present invention, preferably, the control unit performs an equipment protection cleaning mode in which equipment protection cleaning is executed when the number of users per fixed time detected by the detection sensor exceeds a predetermined number of users. Be prepared.
According to the present invention configured as described above, the control unit can determine the change of the user from the first user to the second user. Therefore, the accuracy of detecting the number of users can be improved, and the equipment protection cleaning can be executed at an appropriate timing.

According to the urinal of the present invention, when the first user finishes using the urinal body, the second user stands in front of the urinal body, and the first user to the second user. It is possible to determine the change of user from the first user to the second user and perform cleaning of the urinal body of the first user after use in the situation of changing to the user of the first user. It is possible to prevent the cleaning from not being performed after the use of the first user.

It is a perspective view which shows the whole urinal by one Embodiment of this invention. It is sectional drawing of the urinal device by one Embodiment of this invention. It is sectional drawing of the spreader attached to the urinal device by one Embodiment of this invention. It is a block diagram explaining the operation of the detection sensor unit of the urinal device by one Embodiment of this invention. It is a flowchart which shows the control operation of the control part from the detection of a user to the cleaning of a bowl surface in the urinal apparatus by one Embodiment of this invention. It is a timing chart which shows the positional relationship with the urinal body of the first user, and the separation distance in the urinal device by one Embodiment of this invention. It is a timing chart which shows the separation distance, the approach distance, and the positional relationship between the 1st user and the 2nd user in the urinal apparatus according to one Embodiment of this invention.

Next, the urinal device according to the embodiment of the present invention will be described with reference to the accompanying drawings.
First, the urinal device according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a perspective view showing the entire urinal device according to an embodiment of the present invention, FIG. 2 is a sectional view of the urinal device according to an embodiment of the present invention, and FIG. 3 is a sectional view according to an embodiment of the present invention. It is sectional drawing of the spreader attached to the urinal device.

As shown in FIG. 1, the urinal device 1 according to the embodiment of the present invention is a wall-mounted urinal that is attached to a wall surface W of a public facility such as a station or a store or a home. A plurality of urinal devices 1 are arranged side by side along the wall surface W. The urinal device 1 includes a urinal body 2 which is a urinal body made of pottery. The toilet body 2 includes a bowl portion 3 formed on the front side. The bowl portion 3 includes a bowl surface 4 for receiving the user's urine and a drainage port portion 6 provided at the bottom of the bowl surface 4.
The "rear" of the urinal device is the direction toward the back side that abuts on the wall surface of the urinal device, and the "front" of the urinal device is the direction toward the front side when viewed from the user side using the urinal device. (The opposite direction of "rear"), the right direction when viewed from the front is the right direction, the left direction when viewed from the front is the left direction, and the right and left directions are the sides of the urinal device. It is explained as.

As shown in FIG. 2, the urinal device 1 further includes a drain trap pipeline 8 which is a drain trap extending downward from the drain port portion 6 and forming a sealing water inside the urinal device 1. The drain trap pipeline 8 is connected to the drain pipe 9, and the drain pipe 9 extends through the wall surface W to the back side of the wall surface W and extends to a drainage facility (not shown). A substantially disk-shaped plate 11 is arranged so as to cover the drainage port 6.

The bowl surface 4 is composed of a front surface portion 4a extending substantially parallel to the wall surface W and side surface portions 4b extending from both sides of the front surface portion 4a toward the front end portion of the urinal device 1. The upper portions of the front surface portion 4a and the side surface portions 4b are open, and the bowl surface 4 does not have a portion corresponding to the “ceiling surface”. Further, the front surface portion 4a is formed to be substantially flat in the upper portion thereof, and is formed to be curved so as to protrude downward toward the front end portion (the side on which the user stands).

The urinal device 1 further includes a spreader 10 which is a water discharge device at the upper part of the center of the bowl surface 4 of the toilet body 2 in the left-right direction, and a detection sensor which is a detection sensor that detects the user based on the reflected wave of the radiated radio wave. It includes a unit 26 and a control unit 24 that cleans the bowl surface 4 according to the detection state of the detection sensor unit 26.

As shown in FIGS. 1 to 3, the spreader 10 is attached to the bowl surface 4, and by discharging the washing water from the spout portion 12, the washing water is supplied to the bowl surface 4 to wash the bowl surface 4. It has become like. The spreader 10 includes a main body base 14 which is a water discharge device main body member attached to the front portion 4a, a main body cover portion 16 which is a water discharge device main body member formed so as to cover the front side, and a bowl surface 4 from the water discharge port portion 12. A headrace 18 extending to the back side of the front portion 4a of the above, a first light irradiating device 20 that irradiates light on the lower bowl surface 4, and a second light irradiating device 22 that irradiates light toward the front of the spreader 10. , Is equipped.

The main body base 14 and the main body cover 16 form a spout portion 12 for discharging wash water. Washing water is supplied to the headrace 18 from the water supply 32, which is a water supply source, via the solenoid valve 34. The headrace 18 forms a tubular portion that extends through the front portion 4a of the bowl surface 4 and is connected to a water supply source (not shown) for wash water. The spout portion 12 is configured to communicate with the headrace 18. As shown by the arrow F in FIG. 1, the washing water discharged from the spreader 10 flows downward along the front portion 4a of the bowl surface 4, and a part thereof flows on the side surface portion 4b of the bowl surface 4. It is guided along to the front end of the urinal device 1.

The first light irradiation device 20 forms a bright spot T on the bowl surface 4 by projecting light onto the front portion 4a of the bowl surface 4, and places the target position on which the user should urinate on the bowl surface 4. It is configured to instruct. The second light irradiating device 22 irradiates the light indicating the state of the urinal device 1 toward the front of the spreader 10.

The control unit 24 uses a microprocessor, a memory, an interface circuit, a program for operating these, and the like (not shown) to perform a cleaning operation of the urinal device 1 and a first light irradiation device 20 and a second light irradiation device 22. It has a function of controlling light emission operation and detection operation of the detection sensor unit 26.
The control unit 24 has a first cleaning mode for executing cleaning of the bowl surface 4 when it is determined that the first user A1 who is the user is separated from the toilet bowl body 2 and is in a separated state, and the first use. When it is determined that the person A1 is not in the separated state, and the second user A2 different from the first user A1 approaches the toilet body 2 and is in the approaching state. A second cleaning mode for cleaning the bowl surface 4 and equipment protection for performing equipment protection cleaning when the number of users per fixed time detected by the detection sensor unit 26 exceeds a predetermined number of users. It has a cleaning mode.

In the equipment protection cleaning mode, the control unit 24 causes the spout unit 12 to spout water at a flow rate equal to or higher than the normal spout flow rate. Equipment that cleans the drain trap pipeline 8 and the drain pipe 9 arranged on the downstream side of the drain port portion 6 by this water discharge, suppresses the growth of various germs in these pipelines, and suppresses the adhesion of urinary stones and the like. Perform protective cleaning. The equipment protection cleaning mode of the control unit 24 executes equipment protection cleaning when the cumulative number of users detected by the detection sensor unit 26 exceeds a predetermined number of users in a certain period of time. Therefore, the equipment protection cleaning mode can be executed according to a relatively accurate measurement of the number of users, even though the equipment protection cleaning mode exceeds the originally planned number of users in a certain period of time. It can be suppressed that it is not done.

As shown in FIG. 4, the detection sensor unit 26 is a radio wave sensor that detects a user A (for example, a first user A1 or a second user A2) who stands in front of the toilet body 2 and uses the toilet body 2. Forming a unit. The detection sensor unit 26 is a unit constituting a so-called two-output type sensor among the Doppler sensors. The detection sensor unit 26 includes an oscillator 28 that oscillates an oscillating wave, a transmitting antenna 30 that emits a transmitting wave B that is a radio wave (microwave), and a receiving antenna 36 that receives a reflected wave C of a radio wave from the user A. And the first mixer 38 that superimposes the first received signal and the oscillating wave obtained from the receiving antenna 36, and the second received signal and the oscillating wave branched from the first received signal obtained from the receiving antenna 36. The two mixers 40 are provided with a phase adjusting unit 42 that makes the first received signal a second received signal whose phase is shifted by λ / 4 (π / 2) with respect to the wavelength λ of the oscillating wave.

The first mixer 38 outputs the first signal I and sends it to the control unit 24. The second mixer 40 outputs the second signal Q and sends it to the control unit 24. The second signal Q is obtained in a state of being out of phase by λ / 4 from the first signal I. The output signal is passed through an amplifier (not shown). Based on the first signal I and the second signal Q, the control unit 24 can estimate the approaching operation D or the separating operation E of the user A to the toilet bowl main body 2 (detection sensor unit 26), and is used. It is possible to estimate the approach distance R (see FIGS. 5 to 7) in the direction of approaching the toilet body 2 of the person A or the separation distance P (see FIGS. 5 to 7) in the direction away from the toilet body 2.

Next, the operation (action) of the urinal device according to the embodiment of the present invention will be described with reference to FIGS. 5 to 7.
FIG. 5 is a flowchart showing a control operation of the control unit from the detection of the user to the execution of cleaning of the bowl surface in the urinal device according to the embodiment of the present invention, and FIG. 6 is a flowchart showing the control operation of the control unit. It is a timing chart which shows the positional relationship with the urinal body of the 1st user, and the separation distance in the urinal apparatus by one Embodiment. In FIG. 6, the vertical axis in the upper row shows the separation distance P from the reference position (the position where the separation distance is 0), the lower column shows the positional relationship between the toilet bowl body and the user, and the horizontal axis shows the time. .. In FIG. 5, S indicates each step.

First, as shown in FIGS. 5 and 6, when the first user uses the toilet bowl body 2 alone and leaves after using the toilet bowl body 2, the control unit 24 executes the first cleaning mode. explain.
In step S0 shown in FIG. 5, there is no first user A1 of the toilet bowl body 2, and the detection sensor unit 26 radiates radio waves and detects the first user A1 approaching the toilet bowl body 2. It is in a ready state. Further, the solenoid valve 34 is in a closed state. In the standby state, the process proceeds to the determination in step S1.

In step S1, the control unit 24 determines whether or not the detection sensor unit 26 detects the use of the first user A1. If the control unit 24 has not detected the first user A1, the control unit 24 returns to S1 again to make a determination.
As shown at time t1 in FIG. 6, when the first user A1 approaches the front side of the toilet bowl body 2, the detection sensor unit 26 detects the use of the first user A1. It becomes. The control unit 24 can estimate the approach distance R of the first user A1 to the toilet body 2 by the detection sensor unit 26, and recognizes the stopped state in which the first user A1 has stopped in front of the toilet body 2. be able to. When the control unit 24 detects the first user A1, the control unit 24 proceeds to S2.

The user pisses from a state of stopping in front of the toilet bowl main body 2. At this time, the detection sensor unit 26 continues to recognize the stopped state of the first user A1. When the first user A1 determines that the first user A1 has stopped, the control unit 24 resets the separation distance P to zero, and measures the relative separation distance P from the reference position with the position of the stopped state as the reference position. It can be so.

In step S2, the control unit 24 determines whether or not the separation speed of the first user A1 detected by the detection sensor unit 26 becomes larger than a predetermined threshold value. Specifically, the separation speed of the first user A1 is estimated based on the separation distance P from the toilet body 2 of the first user A1, and whether the estimated separation speed becomes larger than a predetermined threshold value. Judge whether or not. Therefore, it is possible to more reliably determine the separation operation E in which the first user A1 moves from the toilet bowl body 2 at a separation speed that is larger than a predetermined threshold value, and the separation operation E of the first user A1 can be determined. Can be determined more reliably. In addition, it is possible to prevent the first user A1 from erroneously detecting an action such as slight movement or slight movement during or before and after urination as a detachment action E.
When the separation speed is equal to or less than a predetermined threshold value, the control unit 24 determines that the first user A1 is not moving enough to start the separation operation E, and proceeds to S3.

In step S3, the control unit 24 resets the separation distance P of the first user A1 to zero, and sets the current standing position as the reference position for measuring the separation distance P. With such control, it is possible to make it difficult for the influence of the slight movement or slight movement of the first user A1 to be exerted on the subsequent measurement of the separation distance P. The control unit 24 returns to S2 after performing the process of step S3.

Next, at time t1, the first user A1 finishes the urine and starts the separation operation E from the stopped state. When the separation speed becomes larger than a predetermined threshold value, the control unit 24 can determine that the first user A1 has started the separation operation E, so that the measurement of the separation distance P is started and the process proceeds to S4. As shown at time t2, the control unit 24 recognizes the separation operation E of the first user A1 and estimates the relative separation distance P from the reference position by the detection sensor unit 26.

In step S4, the control unit 24 determines whether or not the separation distance P of the first user A1 exceeds the threshold value L. Specifically, when the relative separation distance P from the reference position exceeds the threshold value L, the control unit 24 determines that the first user A1 is separated and separated so as to leave. As shown at time t3 in FIG. 6, when the separation distance P exceeds the threshold value L, the control unit 24 can determine that the first user A1 is separated from the toilet body 2 and is in a separation state. Proceed to step S5.
If the separation distance P is equal to or less than the threshold value L, the process proceeds to S7. In step S7, since there is no second user A2 as described later, the approach speed of the second user A2 is equal to or less than a predetermined threshold value, and the process returns to step S2 via step S8.

As shown in FIG. 6, when the first user A1 uses the toilet bowl body 2 alone and leaves, the first user A1 often performs the separation operation E in the front-rear direction, and the first user A1 often performs the separation operation E in the front-rear direction. Even if the user A1 of 1 moves in a slightly oblique direction, it is often performed so as to include a relatively large amount of separation operation E in the front-rear direction. Therefore, the control unit 24 can determine that the first user A1 is separated from the toilet body 2 and is in a separated state by the first cleaning mode.

In step S5, the control unit 24 can determine that the first user A1 has finished using the first user A1 and has left the toilet bowl body 2 because the separation distance P exceeds the threshold value L, so that the detection sensor unit 26 has detected it. Count to increase the number of users by one. Therefore, it is possible to further improve the detection accuracy of the number of users for the equipment protection cleaning mode. The control unit 24 proceeds to step S6 following step S5.

In step S6, as shown at time t4 in FIG. 6, the control unit 24 opens the solenoid valve 34 and allows the wash water to pass through the headrace 18 in a state where the first user A1 is in a separated state. And discharge from the spout portion 12 to clean the bowl surface 4. Further, the washing water can discharge the urine in the drain trap pipe 8 and can wash the drain trap pipe 8 and the drain pipe 9. In this way, the separated state of the first user A1 can be determined relatively accurately, and the toilet bowl main body 2 can be washed.

Next, as shown in FIGS. 5 and 7, when the first user A1 finishes using the toilet bowl body 2, the second user moves in front of the toilet bowl body 2 and the first user A1. The mode in which the control unit 24 executes the second cleaning mode in the situation where the second user A2 is already standing on the back side and the second user A2 approaches the toilet bowl main body 2 will be described.
FIG. 7 is a timing chart showing the separation distance, the approach distance, and the positional relationship between the first user and the second user in the urinal device according to the embodiment of the present invention. In FIG. 7, the vertical axis in the upper row shows the separation distance P from the reference position (0), the vertical axis in the middle row shows the approach distance R from the reference position (0), and the lower vertical axis shows the toilet bowl main body 2 and the first use. The positional relationship between the person A1 and the second user A2 is shown, and the time is shown on each horizontal axis.

As shown in FIG. 7, when the urinal device 1 is installed in a congested place such as a public facility, the first user A1 is using the toilet body 2 and the second user A2 is the first. There is a case where they are waiting in line behind the user A1 (in front of the toilet bowl body 2). In places where congestion continues, such as terminal stations, waiting in line becomes more prominent, and during the use of the first user A1, a line of users is further formed behind the second user A2, and this use. The toilet bowl body 2 may continue to be used for a long time without eliminating the line of people. For example, the urinal device 1 at a terminal station may be continuously used at a pace of several hundred people per hour without eliminating the line of users. Even in such a case, the second cleaning mode of the control unit 24 can improve the accuracy of the determination of the change of the user, and can execute the cleaning after the use of the toilet bowl main body 2 of the first user A1. , It is possible to prevent the cleaning from not being performed after the use of the first user A1. In the second cleaning mode, the first user A1 and the second user A2 of the user A will be described separately for the sake of explanation.

In step S0 shown in FIG. 5, there is no first user A1 of the toilet bowl body 2, and the detection sensor unit 26 radiates radio waves and detects the first user A1 approaching the toilet bowl body 2. It is in a ready state. Further, the solenoid valve 34 is in a closed state. In the standby state, the process proceeds to the determination in step S1.

In the second cleaning mode, steps S1 to S3 are the same as in the first cleaning mode, so the description thereof will be omitted.

In step S4, the control unit 24 determines whether or not the separation distance P of the first user A1 exceeds the threshold value L. Specifically, when the relative separation distance P from the reference position exceeds the threshold value L, the control unit 24 determines that the first user A1 is separated and separated so as to leave. When the separation distance P exceeds the threshold value L, the control unit 24 can determine that the first user A1 has separated from the toilet bowl main body 2 and is in a separation state, and therefore proceeds to step S5. When the separation distance P is equal to or less than the threshold value L, the control unit 24 determines that the first user A1 is not in the separation state, and the first user A1 to the second use Proceed to S7 so that the case of change to person A2 can be determined.

As shown at time t11 in FIG. 7, while the first user A1 is using the toilet bowl body 2, the second user A2 waits in order behind the first user A1 (in front of the toilet bowl body 2). May be lined up at. As shown at time t12, when the first user A1 finishes urinating, the separation operation E is started from the stopped state. At this time, when the second user A2 is waiting in line behind the first user A1, the first user A1 is difficult to move directly behind, and the separation operation E is lateral to the toilet bowl body 2. In many cases, the separation operation E1 is performed. The control unit 24 can recognize the separation operation E1 of the first user A1 and estimate the relative separation distance P from the reference position by the detection sensor unit 26.

Since the separation operation E1 is an operation in which the first user A1 moves to the side of the toilet bowl body 2, the distance from the toilet bowl body 2 to the first user A1 in a stopped state and from the toilet bowl body 2 The amount of change from the distance to the first user A1 during the separation operation E1 is reduced. Therefore, it may be difficult to determine that the first user A1 is in the separation state only by measuring the separation distance P as in the first cleaning mode. Further, as shown at time t13, the detection sensor unit 26 performs the approach operation D to the toilet body 2 by replacing the first user A1 with the second user A2. May be detected and the control unit 24 may determine that the separation distance P is maintained below the threshold value L. In this way, when the control unit 24 determines that the first user A1 is not in the separated state, the second user A2 is detected, and the control unit 24 uses the first user. Includes a state in which the person A1 is determined not to be in a detached state. In this way, even when the separation operation E1 of the first user A1 cannot be measured or is difficult to measure, the control unit 24 can determine the change of the user by the second cleaning mode.

In the second cleaning mode, steps S5 and S6 are the same as in the first cleaning mode, and thus the description thereof will be omitted.

In step S7, the control unit 24 determines whether or not the approach speed of the second user A2 becomes larger than a predetermined threshold value. As shown at time t12 in FIG. 7, when the first user A1 performs the separation operation E1, the second user A2 performs the approach operation D to the toilet bowl main body 2. The control unit 24 estimates the approach speed of the second user A2 based on the approach distance R of the second user A2 to the toilet body 2, and the estimated approach speed of the second user A2 is predetermined. It is determined whether or not it becomes larger than the threshold value of. Therefore, it is possible to more reliably determine the approaching motion D in which the second user A2 moves toward the toilet bowl body 2 at an approaching speed that is greater than a predetermined threshold value, and the user change can be performed more reliably. It can be determined. Further, it is possible to prevent the second user A2 from erroneously detecting an operation such as a slight movement or a slight movement back and forth at the standby position as an approach operation D.
In step S7, the control unit 24 proceeds to S8 when the approach speed of the second user A2 is equal to or less than a predetermined threshold value.
In step S7, when the approach speed of the second user A2 becomes larger than a predetermined threshold value, the control unit 24 can measure the approach distance R relatively accurately, so that the approach distance R can be measured. And proceed to S9.

In step S8, the control unit 24 resets the approach distance R of the second user A2 to zero, and sets the current standing position as the reference position for measuring the approach distance R. With such control, it is possible to make it difficult for the influence of the fine movement or slight movement of the second user A2 to be exerted on the subsequent measurement of the approach distance R. The control unit 24 returns to S2 after performing the process of step S8.

In step S9, the control unit 24 determines whether or not the relative approach distance R from the reference position exceeds the threshold value M. As shown at time t14 in FIG. 7, the control unit 24 determines that the second user A2 is in the approaching state when the approaching distance R of the second user A2 exceeds the threshold value M. By determining that the approach distance R of the second user A2 exceeds the threshold value M, it can be determined relatively reliably that the second user A2 is in the approaching state. When the approach distance R exceeds the threshold value M, the control unit 24 proceeds to step S10. If the approach distance R is equal to or less than the threshold value M, the process returns to step S2.

In step S10, when the approach distance R exceeds the threshold value M, the first user A1 separates to the separated state, and the second user A2 approaches the approached state to the toilet bowl main body. Since it can be determined that 2 is used, the number of users detected by the detection sensor unit 26 is counted to be increased by one person. Therefore, it is possible to further improve the detection accuracy of the number of users for the equipment protection cleaning mode. The control unit 24 proceeds to step S11 following step S10.

In step S11, the control unit 24 opens the solenoid valve 34 in a state where the second user A2 is in an approaching state as shown at time t15, and the wash water is discharged to the spout portion via the headrace 18. Discharge from 12 to clean the bowl surface 4. Further, the washing water can discharge the urine in the drain trap pipe 8 and can wash the drain trap pipe 8 and the drain pipe 9. In this way, even in a situation where the second user A2 replaces the first user A1 and uses the toilet bowl main body 2, cleaning is performed after using the toilet bowl main body 2 of the first user A1. It is possible to prevent the cleaning from not being performed after the use of each first user A1. After executing step S11, the control unit 24 can assume that the second user A2 is still using the toilet bowl main body 2, and therefore returns to step S2. If more users are lined up behind the second user A2 while the second user A2 is in use, the control unit 24 recognizes the second user A2 as the first user A1. Then, the users lined up behind can be recognized as the second user A2, and the same control process can be continuously performed.

According to the urinal device 1 of the embodiment of the present invention, the control unit 24 cleans the bowl surface 4 when it is determined that the first user A1 is separated from the toilet body 2. In the state where it is determined that the first user A1 is not separated from the toilet bowl body 2, it is determined that the second user A2 different from the first user A1 has approached the toilet bowl body 2. In some cases, it is provided with a second cleaning mode for performing cleaning of the bowl surface 4. Therefore, when the first user A1 finishes using the toilet bowl body 2, the second user A2 stands in front of the toilet bowl body 2, and the first user A1 to the second user A2 In the situation where the user is replaced with, the control unit 24 determines the replacement of the user from the first user A1 to the second user A2 by the second cleaning mode, and determines the replacement of the user from the first user A1 to the toilet bowl main body of the first user A1. It is possible to carry out the washing after the use of No. 2, and it is possible to suppress that the washing is not carried out after the use of the first user A1.

Further, according to the urinal device 1 of the embodiment of the present invention, the second cleaning mode is obtained as a state in which the first signal I obtained from the detection sensor unit 26 and the phase of the first signal I are out of phase. The approach distance R of the second user A2 to the toilet body 2 is estimated based on the second signal Q, and when this approach distance R exceeds a predetermined threshold M, the second user A2 Determines that is in an approaching state. Therefore, even if the first user A1 moves so that it is difficult to determine that it is in a separated state, the control unit is in a situation where the second user A2 approaches the toilet bowl body 2 and the user changes. 24 more reliably determines the change of user from the first user A1 to the second user A2 by the second cleaning mode, and after using the toilet bowl main body 2 of the first user A1. The cleaning can be performed, and it can be further suppressed that the cleaning is not performed after the use of the first user A1.

Further, according to the urinal device 1 of the embodiment of the present invention, it is more reliable to determine the separation operation in which the first user A1 moves from the toilet body 2 at a separation speed so as to be larger than a predetermined threshold value. This makes it possible to more reliably determine the separation operation of the first user A1. In addition, it is possible to prevent the first user A1 from erroneously detecting an operation such as slight movement or slight movement during or before and after urination as a detachment operation.

Further, according to the urinal device 1 of the embodiment of the present invention, the second user A2 more reliably moves toward the toilet body 2 at an approach speed so as to be larger than a predetermined threshold value. It can be determined, and the change of user can be determined more reliably. Therefore, the control unit 24 more reliably determines the change of the user from the first user A1 to the second user A2 by the second cleaning mode, and the toilet body 2 of the first user A1. It is possible to carry out cleaning after use, and it is possible to prevent the cleaning from not being performed after the use of the first user A1.

Further, according to the urinal device 1 of the embodiment of the present invention, the control unit 24 can determine the change of the user from the first user A1 to the second user A2. Therefore, the accuracy of detecting the number of users can be improved, and the equipment protection cleaning mode can be executed at an appropriate timing.

1 Urinal device 2 Urinal body 3 Bowl part 4 Bowl surface 4a Front part 4b Side part 6 Drain port part 8 Drain trap pipeline 9 Drain pipe 10 Spreader 11 Plate 12 Water spout 14 Main body base 16 Main body cover 18 Headrace 20 1st light irradiation device 22 2nd light irradiation device 24 Control unit 26 Detection sensor unit 28 Oscillator 30 Transmission antenna 32 Water supply 34 Electromagnetic valve 36 Receiving antenna 38 1st mixer 40 2nd mixer 42 Phase adjustment unit A User A1 1st User A2 Second user B Transmitted wave C Reflected wave D Approaching operation E Separation operation E1 Separation operation F Arrow I Signal L Threshold M Threshold P Separation distance Q Signal R Approach distance T Bright spot W Wall surface λ Wavelength

Claims (5)

A urinal device that cleans the bowl surface with the spouted wash water.
A urinal body having a bowl surface for receiving urine and a drainage port provided at the bottom of the bowl surface, and a urinal body.
A water discharge device that supplies wash water to the bowl surface,
A detection sensor that detects the user based on the reflected wave of the radiated radio wave,
It is equipped with a control unit that cleans the bowl surface according to the detection state of the detection sensor.
The control unit
A first cleaning mode in which the bowl surface is cleaned when the first user determines that the urinal is separated from the main body of the urinal and is in a separated state.
In a state where it is determined that the first user is not in the separated state, a second user different from the first user approaches the urinal body and is in an approached state. A urinal device comprising a second cleaning mode for performing cleaning of the bowl surface when a determination is made. The second cleaning mode of the control unit is based on the first signal obtained from the detection sensor and the second signal obtained in a state of being out of phase with the first signal. The small according to claim 1, wherein the approach distance to the urinal body is estimated, and when the approach distance exceeds a predetermined threshold value, it is determined that the second user is in the approach state. Urinal device. The control unit estimates the separation speed of the first user based on the separation distance of the first user from the urinal body, and the estimated separation speed of the first user is predetermined. The urinal device according to claim 2, wherein the measurement of the separation distance is started when the value becomes larger than the threshold value of. The control unit estimates the approach speed of the second user based on the approach distance of the second user to the urinal body, and the estimated approach speed of the second user is predetermined. The urinal device according to claim 2 or 3, wherein the measurement of the approach distance is started when the value becomes larger than the threshold value of. Claims 1 to 4 include the equipment protection cleaning mode in which the equipment protection cleaning is executed when the number of users per fixed time detected by the detection sensor exceeds the predetermined number of users. The urinal device according to any one of the above items.

Images