JP6119163B2 - Toilet bowl cleaning device - Google Patents

Description

  The present invention relates to a toilet bowl cleaning apparatus that cleans a toilet bowl by discharging water into the toilet bowl.

  Conventionally, as a toilet flushing device, by discharging water to the toilet based on operations for toilet flushing, such as operation of a remote control device after a toilet user (hereinafter simply referred to as "user"), Devices for cleaning toilet bowls are widely used.

  In addition, in such toilet cleaning devices, when the user performs “intention cleaning (synonymous with“ manual cleaning ”)” in which he / she performs his / her own cleaning by operating the remote control device, etc. A device having two types of cleaning functions, “automatic cleaning” that is automatically cleaned, is known.

  FIG. 8 is a time chart showing an example of a cleaning operation in a conventional toilet bowl cleaning apparatus. In FIG. 8, time is shown on the horizontal axis. With reference to FIG. 8, the cleaning operation in the conventional toilet cleaning device will be described separately for pattern 1 and pattern 2. FIG.

  The uppermost part of FIG. 8 shows the detection / non-detection of the user. That is, in the example shown in FIG. 8, the user changes from non-detection to detection at time t0. Thereafter, it is determined that automatic cleaning is performed at a time t1 when a predetermined time T1 (for example, 10 seconds) has elapsed since the user was detected. Then, at time t3 when a fixed time has passed, the user is changed from detection to non-detection as the user leaves the toilet seat.

Pattern 1, between the time t1 and time t3, a pattern also once not performed intention washing. In this case, when the user changes from detection to non-detection at time t3, automatic cleaning is performed at time t4.

  On the other hand, pattern 2 is a pattern in which at least one intention cleaning is performed between time t1 and time t3. In the example shown in FIG. 8, intention cleaning is performed at time t2. Then, the automatic cleaning is canceled and automatic cleaning is not performed at time t4. Like this pattern 2, when intention washing is performed, it can contribute to water saving by canceling automatic washing.

  In the toilet cleaning device equipped with two kinds of cleaning functions, such as intention cleaning and automatic cleaning, there are many control methods to improve the usability and adapt to any user movement without impairing the water-saving effect. Known (see, for example, Patent Documents 1 and 2).

  In Patent Document 1, when the user manually cleans the toilet before using the toilet, it is assumed that the toilet was used for a purpose different from the normal toilet usage state, and the subsequent use of the toilet In this certification, a technique is disclosed in which the automatic cleaning mode in which the toilet bowl is automatically cleaned is not entered under normal use conditions, but the automatic wash mode is entered under different use conditions. According to such a technique, even if seating for a short time is detected, it is determined that the toilet is not used, and therefore, unnecessary automatic toilet flushing is not performed, thereby contributing to water saving.

  In Patent Document 2, in addition to the human body detection sensor for detecting the use of the toilet body, a seating detection sensor for detecting the seating of the user on the toilet seat is provided, and the user stands up after defecation (seating detection off, human body detection). When manual toilet flushing is performed by remote control operation in the ON state, a technique is disclosed in which the automatic flushing mode is canceled and subsequent toilet flushing is not performed. According to such technology, unnecessary automatic toilet cleaning is performed even if you leave after a period of time, such as washing your hands with a toilet or a hand-washing device near the toilet (seating detection off, human body detection off). It is not damaged and can contribute to water saving.

JP 2004-360413 A JP 2004-285729 A

  By the way, in recent years, an onomatopoeia device for toilets (hereinafter also referred to as “Otome (registered trademark)”) has become widespread. Otome is an acoustic device that is installed in a toilet booth and generates sound based on user operations. This sound princess is used to conceal the excretion sound of the user by sound.

  However, when such a sound princess is not installed in the toilet booth, intention cleaning may be performed as a substitute for the sound princess in order to conceal excretion sounds and the like. In such a case, since the intention cleaning is performed, the automatic cleaning is not performed, and there is a possibility that the filth cannot be cleaned. For example, in the case where the intention cleaning performed in the pattern 2 in FIG. 8 is performed as a substitute for Otome, the automatic cleaning is canceled, and therefore excrement may remain.

  The present invention has been made in view of the circumstances as described above, and is surely realized with filth washing and water saving even when intention washing is performed as a substitute for the onomatopoeia device (Otohime) for toilets. An object of the present invention is to provide a toilet cleaning device that can be used.

The toilet cleaning device according to the present invention is a toilet cleaning device that detects a user and automatically cleans the toilet, and the intention cleaning detection unit that detects a request for intention cleaning to manually clean the toilet, User detection means for detecting a user, and toilet cleaning determination means for making a determination related to cleaning of the toilet, wherein the user detection means starts detection of the user by the user detection means During the user detection period, which is a period from the start of detection to the end of detection when the user detection unit no longer detects the user, intention cleaning based on the request detected by the intention cleaning detection unit is performed. If not, the detection have line automatic cleaning after end, the when the intention washed from the time detection start after the first predetermined period has elapsed is performed, automatic washing even after the time of the detection end the not carried out, the first In no event where the intention washing during a predetermined period is performed, if the period from the intention washed until the detection end is not less than the second predetermined time period for automatic cleaning after at the detection end, the intention washing the case until at detection end is shorter than the second predetermined period is one not adversely line automatic cleaning after at the detection end. With such a configuration, by measuring the period from the start of user detection until intention cleaning is performed, it is identified whether the intention cleaning is for purposes other than filth cleaning, such as concealing excretion sounds. Therefore, it is determined whether or not automatic cleaning is necessary. Therefore, reliable filth cleaning and water saving can both be achieved.

Further, in the toilet bowl flushing device according to the present invention, by measuring a period from performing intention washed until the user becomes non-detection, on the intention washing has identified whether dirt cleaning purposes, The necessity of automatic cleaning is determined. Therefore, reliable filth cleaning and water saving can both be achieved.

Moreover, in the toilet bowl cleaning device according to the present invention, preferably, the toilet bowl determination unit does not perform the automatic cleaning when the user detection period is shorter than a predetermined period shorter than the first predetermined period . Is determined. With such a configuration, the length of the user detection period from the start of user detection to the end of detection is used as a criterion. Therefore, even in the case of such inter Tokoro periodically it is set much shorter than the first predetermined time period, prevents unnecessary cleaning, it is possible to save water.

  According to the present invention, even when intention cleaning is performed as a substitute for a toilet sound generator, it is possible to reliably achieve waste cleaning and water saving.

The figure which shows the application example of the toilet bowl washing | cleaning apparatus which concerns on one Embodiment of this invention. The schematic diagram which shows the structure of the toilet bowl washing | cleaning apparatus which concerns on one Embodiment of this invention. The block diagram which shows the function structure of the toilet bowl washing | cleaning apparatus which concerns on one Embodiment of this invention. The flowchart which shows the 1st control logic of the toilet bowl washing | cleaning apparatus which concerns on one Embodiment of this invention. The time chart at the time of the 1st control logic execution of the toilet bowl washing device concerning one embodiment of the present invention. The flowchart which shows the 2nd control logic of the toilet bowl washing | cleaning apparatus which concerns on one Embodiment of this invention. The time chart at the time of second control logic execution of the toilet bowl washing device concerning one embodiment of the present invention. The time chart which shows the example of the washing | cleaning operation | movement in the conventional toilet bowl washing | cleaning apparatus.

  The toilet bowl cleaning apparatus according to the present invention is a toilet bowl cleaning apparatus that detects a user and automatically cleans the toilet bowl, and uses a intention cleaning detection unit that detects a request for intention cleaning to manually wash the toilet bowl, A user detecting means for detecting a person and a toilet cleaning determination means for making a determination related to toilet cleaning, the toilet cleaning determining means at the start of detection when the user detecting means starts detecting the user When the intention cleaning based on the request detected by the intention cleaning detection means is not performed during the user detection period, which is the period from the end of detection to the end of detection when the user detection means no longer detects the user, A first determination that automatic cleaning is performed after the end of the detection, and if the intention cleaning is performed after a first predetermined period has elapsed from the start of the detection, the automatic determination is also performed after the end of the detection. No cleaning And determination of, when the intention washing is performed during the first predetermined time period is performed the third and determination to perform automatic cleaning after at the detection end. Thus, even if intention cleaning is performed as a substitute for the toilet sound generator, filth cleaning and water saving are reliably realized. Embodiments of the present invention will be described below.

[Configuration of toilet bowl cleaning device]
FIG. 1 is a diagram illustrating an application example of a toilet bowl cleaning apparatus according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing a configuration of a toilet bowl cleaning apparatus according to an embodiment of the present invention.

  As shown in FIG. 1, the toilet bowl cleaning device 1 of this embodiment cleans the toilet bowl 2 by discharging water into the toilet bowl 2. The toilet cleaning device 1 discharges water supplied from the water supply pipe 3 to the toilet 2 as cleaning water for the toilet 2. The water supplied by the water supply pipe 3 flows into the toilet bowl cleaning device 1 through the stop cock 4 through the inflow pipe 5. Wash water discharged from the toilet bowl cleaning device 1 flows into the toilet bowl 2 through an outflow pipe 6 connected to the toilet bowl 2.

  As shown in FIGS. 1 and 2, the toilet bowl cleaning device 1 includes a device body 10 including an electromagnetic valve 11, a human body detection sensor 12, a controller 13, and a remote control device 14. In the toilet bowl cleaning apparatus 1, the apparatus main body 10, the human body detection sensor 12, and the controller 13 are provided in a casing 15 having a substantially rectangular parallelepiped outer shape. As shown in FIG. 1, the remote control device 14 is attached to a wall of a room where the toilet 2 is installed, for example, so that the user of the toilet 2 (hereinafter simply referred to as “user”) can operate. Provided.

  In the toilet bowl cleaning device 1 of the present embodiment, when the user performs an operation for toilet bowl cleaning in the remote controller 14, intention washing in which flush water is discharged to the toilet bowl 2, and intention washing is not performed, etc. The automatic cleaning is automatically performed in which the cleaning water is discharged into the toilet bowl 2 automatically. Hereinafter, the detail of each part of the toilet bowl washing | cleaning apparatus 1 is demonstrated.

  As shown in FIG. 2, the apparatus main body 10 includes a water inlet 16 that receives supply of washing water, and a water outlet 17 that serves as an outlet for washing water discharged to the toilet 2. Connected to the water inlet 16 is an inflow pipe 5 (FIG. 1) that guides water supplied by the water supply pipe 3 (FIG. 1) to the toilet bowl cleaning device 1. An outlet pipe 6 (FIG. 1) that guides wash water to the toilet 2 is connected to the outlet 17.

  In the apparatus main body 10, the wash water supplied from the water supply pipe 3 flows from the water inlet 16 through the inflow pipe 5 (see arrow A1). The washing water flowing from the water inlet 16 flows out from the water outlet 17 through the water passage formed in the apparatus main body 10 (see arrow A2), and is supplied to the toilet 2 through the outlet pipe 6. . In the following description, the passage of the cleaning water provided between the water inlet 16 and the water outlet 17 in the apparatus main body 10 is referred to as “main body water passage”.

  The apparatus main body 10 has a piston valve 18. The piston valve 18 is provided on the downstream side of the water inlet 16 in the water passage in the main body. The piston valve 18 is provided so as to be movable in the vertical direction within the water passage in the main body. Here, the up and down direction is a substantially vertical direction with respect to the floor surface on which the toilet 2 is installed, that is, a substantially vertical direction. In the following description, the vertical direction, which is the moving direction of the piston valve 18, is defined as the vertical direction in the toilet bowl cleaning device 1.

  The piston valve 18 has a packing 18a. The packing 18 a seals between a wall surface formed as a sliding surface of the piston valve 18 in the apparatus main body 10 and an outer peripheral surface of the piston valve 18.

  In the apparatus main body 10, a back pressure chamber 19 is provided above the piston valve 18. The back pressure chamber 19 communicates with the water inlet 16 via a communication passage 18 b formed inside the piston valve 18. A secondary water channel 20 is provided below the piston valve 18. The water flowing into the secondary water channel 20 flows out from the water outlet 17. The water inlet 16 and the secondary water channel 20 are in a non-communication state when the piston valve 18 is located at the lowermost end, and are in a communication state when the piston valve 18 rises from the lowermost position.

  The back pressure chamber 19 communicates with the secondary side water channel 20 by the bypass channel 21. The bypass valve 21 is provided with the electromagnetic valve 11. The electromagnetic valve 11 opens and closes the bypass passage 21. That is, the open / close state of the electromagnetic valve 11 switches the communication state / non-communication state between the back pressure chamber 19 and the secondary water channel 20 via the bypass flow channel 21.

  In the apparatus main body 10 having such a configuration, flush water is discharged to the toilet 2 as follows. In a state where the electromagnetic valve 11 is closed, water flowing from the water supply pipe 3 into the water inlet 16 through the inflow pipe 5 passes through the communication passage 18b of the piston valve 18 and the back pressure chamber 19 on the upstream side of the electromagnetic valve 11. Into the back pressure chamber 19.

  When water accumulates in the back pressure chamber 19, the pressure in the back pressure chamber 19 becomes higher than the pressure in the secondary water channel 20 due to the water pressure in the back pressure chamber 19, and the piston valve 18 is pushed down. Thereby, between the water inlet 16 and the secondary side water channel 20 is closed by the piston valve 18 (it will be in a non-communication state). That is, in a state where the electromagnetic valve 11 is closed, water flowing from the water inlet 16 is blocked by the electromagnetic valve 11 and the piston valve 18, and water is not discharged from the water outlet 17.

  Thus, when the solenoid valve 11 is opened from the state where the solenoid valve 11 is closed and the space between the water inlet 16 and the secondary water channel 20 is closed by the piston valve 18, the back pressure chamber is opened. The water in 19 flows into the secondary side water channel 20 through the bypass channel 21. As a result, the pressure in the back pressure chamber 19 is lowered, and the packing 18a is pushed up by the water in the water inlet 16, whereby the piston valve 18 is raised (moved to the back pressure chamber 19 side). As the piston valve 18 rises, the water inlet 16 and the secondary side water channel 20 are in communication with each other, and the water flowing into the water inlet 16 flows into the secondary side water channel 20 and flows out from the water outlet 17 to the toilet 2. Supplied.

  Then, when the solenoid valve 11 is closed from the state in which water is flowing out from the water outlet 17 by opening the solenoid valve 11, a part of the water flowing from the water inlet 16 is back from the communication passage 18b of the piston valve 18. It flows into the pressure chamber 19 and begins to accumulate in the back pressure chamber 19. As a result, the pressure in the back pressure chamber 19 increases, the pressure in the secondary water channel 20 decreases, and the piston valve 18 is pushed down. And finally, between the water inlet 16 and the secondary side water channel 20 is closed by the piston valve 18, and it will be in the water stop state in which the water discharge from the water outlet 17 is not performed.

  In the discharge of the wash water to the toilet 2 by opening and closing the electromagnetic valve 11, the amount of the wash water discharged to the toilet 2 is adjusted by controlling the opening time (strictly, the excitation time) of the electromagnetic valve 11. The Therefore, the opening time of the electromagnetic valve 11 is longer in the case of stool washing than in the case of urine washing.

  Thus, in the toilet bowl washing | cleaning apparatus 1 of this embodiment, the solenoid valve 11 which the apparatus main body 10 has is an on-off valve for opening and closing a water flow path in a main body, and supply of the wash water discharged to the toilet bowl 2 is provided. It functions as a cleaning valve that opens and closes the passage. By opening and closing the electromagnetic valve 11, the opening and closing of the water passage in the main body, that is, the water discharge state and the water stop state of the toilet bowl cleaning device 1 are switched.

  The opening / closing operation of the electromagnetic valve 11 is controlled by the controller 13. For this reason, the solenoid valve 11 is connected to the controller 13. The solenoid valve 11 is electrically controlled in accordance with a control signal from the controller 13 to open and close the bypass passage 21. Opening and closing of the bypass passage 21 by the electromagnetic valve 11 is accompanied by opening and closing of the water passage in the main body as described above.

  The human body detection sensor 12 functions as a human body detection unit that detects a user. The human body detection sensor 12 is a non-contact sensor that automatically detects the presence of a user. In the present embodiment, the human body detection sensor 12 is an infrared sensor. Therefore, the human body detection sensor 12 includes a light emitting element that emits infrared light and a light receiving element that receives reflected light of the emitted infrared light.

  The human body detection sensor 12 is disposed in the casing 15 such that the side that transmits and receives infrared rays faces the user. The casing 15 is provided with a detection window 12a for securing infrared transmission and reception by the human body detection sensor 12 on the wall surface on the side where the user is located (see FIG. 1).

  In the present embodiment, the presence / absence of a user sitting on the toilet seat 2a of the toilet 2 is detected by the human body detection sensor 12. Therefore, the user sitting on the toilet seat 2 a is located within the detection range of the human body detection sensor 12. According to the human body detection sensor 12, the user is within the detection range of the human body detection sensor 12, and the user sitting on the toilet seat 2 a is separated from the detection range of the human body detection sensor 12. Is detected. In this embodiment, it is assumed that the user's sitting is detected when it is detected that the user has left the detection range of the human body detection sensor 12.

  The human body detection sensor 12 is connected to the controller 13. A signal output from the human body detection sensor 12 is input to the controller 13, and the presence / absence of the user is detected by the controller 13.

  In the present embodiment, the human body detection sensor 12 is an infrared sensor. However, as the human body detection unit for detecting the user, various sensors such as a known non-contact sensor and a contact sensor may be employed in addition to the infrared sensor. Can do. Further, the human body detection unit that detects the user is not housed in the casing 15 together with the apparatus main body 10 and the like, as in the human body detection sensor 12 of the present embodiment, and is, for example, integrally incorporated in the toilet seat 2a. It may be.

  The controller 13 functions as a control unit that receives the detection signal from the human body detection sensor 12 and controls the opening / closing operation of the electromagnetic valve 11. Specifically, the controller 13 controls the operation of the electromagnetic valve 11 based on a signal output from the human body detection sensor 12, an operation on the remote control device 14, or the like. For this reason, the controller 13 receives a detection signal from the human body detection sensor 12 and an operation signal from the remote control device 14. Further, a control signal for the electromagnetic valve 11 is output from the controller 13.

  The controller 13 has various functional parts such as a CPU (Central Processing Unit), a memory, and an input / output interface that are connected to each other by a data communication bus or the like. The controller 13 has an input interface for receiving input signals from the human body detection sensor 12 and the remote control device 14 and an output interface for outputting a control signal for the electromagnetic valve 11 as an input / output interface.

  The controller 13 has a storage unit 13a that stores various data used for control of a control program and automatic cleaning as described later. The storage unit 13a is configured by, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), or the like connected to the CPU. The CPU of the controller 13 functions as a calculation unit that performs a predetermined calculation according to a control program or the like. The controller 13 receives power supply via an AC adapter (not shown).

  The remote control device 14 functions as an operation unit that supplies an operation signal for controlling the opening / closing operation of the electromagnetic valve 11 to the controller 13. Specifically, the remote control device 14 transmits an infrared signal as an operation signal supplied to the controller 13. For this reason, the remote control device 14 has a transmitter 22 that transmits an infrared signal. In the present embodiment, as shown in FIG. 1, the remote control device 14 has a rectangular thick plate-like outer shape, and is provided with transmitters 22 at two corners on both sides that are the upper side in the installed state. ing.

  On the other hand, as shown in FIG. 2, the apparatus main body 10 is provided with a receiving unit 23 that receives an infrared signal transmitted from the transmitting unit 22 of the remote control device 14. The receiving unit 23 is connected to the controller 13, and the infrared signal received by the receiving unit 23 is input to the controller 13 by being converted into an electrical signal.

  The remote control device 14 has a washing switch 24 as an operation switch for performing toilet flushing, that is, discharging flush water to the toilet 2. When the washing switch 24 is operated by a user or the like, the electromagnetic valve 11 is opened as described above, the toilet flushing device 1 enters the water ejection state, and the flushing water is discharged from the water inlet 16 to the toilet 2. In the present embodiment, the washing switch 24 is a switch for stool washing. However, although illustration is omitted, the remote control device 14 also has other operation switches such as a switch for washing urine.

  The remote control device 14 incorporates a battery for receiving supply of driving power. However, the driving power of the remote control device 14 may be supplied from a power source provided outside the toilet bowl cleaning device 1. In the present embodiment, the operation signal supplied from the remote control device 14 to the controller 13 is an infrared signal, but is not limited to this method. The operation signal from the remote control device 14 may be, for example, a signal using electromagnetic waves of other wavelengths, a signal using ultrasonic waves, a signal transmitted by a wired method, or the like.

  Then, each function implement | achieved by the toilet bowl washing | cleaning apparatus 1 of this embodiment is demonstrated.

[Functional configuration of toilet bowl cleaning device]
FIG. 3 is a block diagram showing a functional configuration of the toilet bowl cleaning apparatus according to the embodiment of the present invention. In FIG. 3, the same components as those described above are denoted by the same reference numerals, and redundant description is omitted as appropriate.

  As shown in FIG. 3, the toilet bowl cleaning device 1 has a configuration including a toilet bowl cleaning control device 100 and a intention cleaning detection device 200.

  The toilet cleaning control apparatus 100 includes a toilet cleaning determination unit 110, a toilet cleaning unit 120, a user detection determination unit 130, and a user detection unit 140, and performs various controls related to cleaning of the toilet 2 (see FIG. 1).

  The toilet flushing determination unit 110 is configured to determine whether the toilet 2 is automatically cleaned or intentionally cleaned based on a determination result by a user detection determination unit 130 (to be described later) or a determination result by the intention cleaning detection determination unit 210. Judgment related to cleaning is performed. A specific determination method will be described later with reference to FIGS. The toilet flushing determination unit 110 is realized by, for example, the controller 13 in FIG.

  When the toilet bowl cleaning means 120 determines that the toilet bowl 2 is to be cleaned, the toilet bowl cleaning means 120 cleans the toilet bowl 2. The toilet cleaning means 120 is, for example, the electromagnetic valve 11 shown in FIG.

  The user detection determination unit 130 determines whether or not a user has been detected, that is, whether or not the user has been detected, based on a detection result by a user detection unit 140 described later. The user detection determination unit 130 is realized by, for example, the controller 13 in FIG.

  The user detection means 140 detects the presence or absence of a user seated on the toilet seat 2a (see FIG. 1). The user detection unit 140 is realized by, for example, the human body detection sensor 12 of FIG.

  On the other hand, the intention cleaning detection device 200 includes intention cleaning detection determination means 210 and intention cleaning detection means 220.

  The intention cleaning detection device 200 is a device that detects a request for intention cleaning by a user. The intention cleaning detection device 200 is, for example, the remote control device 14 shown in FIGS. The user performs an operation for intentionally washing the toilet using the remote control device 14.

  The intention cleaning detection determination unit 210 determines whether or not a request for intention cleaning has been detected based on a detection result by the intention cleaning detection unit 220 described later, and transmits the determination result to the toilet bowl cleaning determination unit 110. The intention cleaning detection determination unit 210 is realized by a circuit or the like incorporated in the remote control device 14, for example.

  The intention cleaning detection means 220 detects a request for intention cleaning for manually cleaning the toilet bowl 2. This intention cleaning detection means 220 is realized by, for example, the cleaning switch 24 of FIG.

  With the functional configuration shown above, in the toilet bowl cleaning device 1 of the present embodiment, the intention cleaning in which the cleaning water is discharged into the toilet bowl 2 when the intention cleaning detection device 200 detects an operation for toilet cleaning by the user, The user detection means 140 detects the user, and automatic cleaning is automatically performed in which cleaning water is discharged into the toilet bowl 2 automatically.

  Hereinafter, specific control contents performed in the toilet bowl cleaning device 1 of the present embodiment will be described with reference to FIG. 3 as appropriate.

[First control logic of toilet bowl cleaning device 1]
FIG. 4 is a flowchart showing the first control logic of the toilet bowl cleaning device according to the embodiment of the present invention. FIG. 5 is a time chart when the first control logic of the toilet bowl cleaning apparatus according to the embodiment of the present invention is executed. Here, the 1st example of operation | movement of the toilet bowl washing | cleaning apparatus 1 which concerns on this embodiment is demonstrated.

  First, in step 1 and step 2, the toilet bowl cleaning device 1 clears the intention cleaning flag as an initial setting (S1) and clears the automatic cleaning confirmation flag (S2).

  The intention cleaning flag and the automatic cleaning confirmation flag are variable data recorded in the storage unit 13a (see FIG. 2) of the controller 13. The intention cleaning flag is set to True (1) when intention cleaning is performed, and is set to False (0) when the flag is cleared. On the other hand, the automatic cleaning confirmation flag is set to True (1) when it is determined that automatic cleaning is performed, and False (0) is set when the flag is cleared. The toilet flushing determination unit 110 (see FIG. 3) sets and clears these flags.

  Thereafter, in step 3, the toilet bowl cleaning device 1 determines whether or not a user has been detected (S3). Here, the user detection determination unit 130 determines whether a user has been detected based on the detection result by the user detection unit 140.

  When it is determined that the user is not detected (NO in S3), the toilet bowl cleaning device 1 returns to Step 3 and repeats the process. On the other hand, if it is determined that the user has been detected (YES in S3), the process proceeds to step 4. The case of YES in step 3 corresponds to time t0 in FIG. 5, and the user changes from non-detection to detection.

  In step 4, the toilet bowl cleaning device 1 sets timers T1 and (T1 + T2) (S4). Here, the toilet flushing determination unit 110 (see FIG. 3) sets the timers T1 and (T1 + T2) and starts measuring the set times T1 and (T1 + T2).

  Note that T1 in step 4 is a threshold time for determining whether or not to perform automatic cleaning (hereinafter also referred to as “automatic cleaning determination time T1”). The period from the detection start time (time t0 in FIG. 5) when the user detection means 140 starts detection of the user to the detection end time (time t14 in FIG. 5) when the user detection means 140 stops detecting the user. When a certain user detection period (time t0 to t14 in FIG. 5) is longer than the automatic cleaning confirmation time T1, the toilet bowl cleaning device 1 performs automatic cleaning in principle after the end of detection. On the other hand, when the user detection period is shorter than the automatic cleaning confirmation time T1, the toilet bowl cleaning device 1 does not perform automatic cleaning after the end of detection. For example, 10 seconds is set as the automatic cleaning confirmation time T1. The automatic cleaning confirmation time T1 corresponds to a “predetermined period” in the claims.

  On the other hand, (T1 + T2) in Step 4 is a threshold time for identifying whether the intention cleaning executed in Step 8 described later is a substitute for Otome (toilet onomatopoeia) or the purpose of cleaning filth ( Hereinafter, it is also referred to as “Otome threshold time (T1 + T2)”. When the intention cleaning is performed between the time when the automatic cleaning confirmation time T1 has elapsed from the start of detection (time t11 in FIG. 5) and the time when the otohime threshold time (T1 + T2) has elapsed (time t13 in FIG. 5) The toilet bowl cleaning device 1 regards the intention cleaning as a substitute for Otome, and performs automatic cleaning separately. On the other hand, when intention cleaning is performed after the time of the otohime threshold time (T1 + T2) has elapsed (time t13 in FIG. 5), the toilet bowl cleaning device 1 determines that the intention cleaning is for the purpose of cleaning filth. Automatic cleaning is not performed after the end of detection. For example, 30 seconds is set in T2. That is, for example, 10 + 30 = 40 seconds is set as the sound princess threshold time (T1 + T2). The otohime threshold time (T1 + T2) corresponds to the “first predetermined period” in the claims.

  In step 5, the toilet bowl cleaning device 1 determines whether or not the automatic cleaning confirmation time T1 has elapsed (S5). When it is determined that the automatic cleaning confirmation time T1 has elapsed (YES in S5), an automatic cleaning confirmation flag is set (S6). The case of YES in step 5 corresponds to time t11 shown in FIG.

  On the other hand, when it is determined that the automatic cleaning confirmation time T1 has not elapsed (NO in S5), the toilet bowl cleaning device 1 proceeds to step 7 without performing any processing. The toilet flushing determination unit 110 (see FIG. 3) performs the processing of steps 5 and 6.

  If it progresses to step 7, the toilet bowl washing | cleaning apparatus 1 will determine whether there was any intention washing | cleaning request | requirement (S7). Here, intention cleaning detection determination means 210 determines whether or not there has been a request for intention cleaning based on the detection result by intention cleaning detection means 220.

  When it is determined that there is a request for intention cleaning (YES in S7), the toilet bowl cleaning device 1 executes intention cleaning (S8). In step 8, the toilet bowl cleaning determination unit 110 determines that the toilet bowl 2 is to be cleaned based on the determination that the intention cleaning detection determination unit 210 has requested the intention cleaning. Thereafter, the toilet bowl cleaning means 120 cleans the toilet bowl 2. This step 8 corresponds to, for example, time t12 shown in FIG.

  Thereafter, in step 9, the toilet bowl cleaning device 1 determines whether the otohime threshold time (T1 + T2) has elapsed (S9). When it is determined that the otohime threshold time (T1 + T2) has elapsed (YES in S9), a flag with intention washing is set (S10). On the other hand, when it is determined that there has been no intention cleaning request (NO at S7), or when it is determined that the Onhime threshold time (T1 + T2) has not elapsed even when intention cleaning has been performed (at S9). NO), proceed to Step 11 without performing any processing. The toilet bowl washing determination means 110 (see FIG. 3) performs the processing of these steps 7-10.

  As described above, the toilet bowl cleaning device 1 does not perform intention cleaning during the user detection period (time t0 to t14 in FIG. 5) that is a period from the start of detection to the end of detection (NO in S7). , Do not set the flag with intention washing. Thereby, it is determined that automatic cleaning is performed after the end of detection (NO in S13) (first determination).

  Further, the toilet cleaning device 1 determines that the intention cleaning is for the purpose of cleaning the filth when the intention cleaning is performed after the sound princess threshold time (T1 + T2) has elapsed (YES in S9), and sets the flag with intention cleaning. To do. Accordingly, it is determined that automatic cleaning is not performed after the end of detection (YES in S13) (second determination).

  Furthermore, the toilet cleaning device 1 regards that the intention cleaning is performed as a substitute for the sound princess when the intention cleaning is performed before the sound princess threshold time (T1 + T2) elapses (NO in S9). Do not set the flag with cleaning. Thus, it is determined that automatic cleaning is performed after the end of detection (NO in S13) (third determination).

  As shown in the first to third determinations described above, the toilet bowl cleaning device 1 measures the period from the start of detection by the user until the intention cleaning is performed. The necessity of automatic cleaning is determined after identifying whether or not the purpose is other than filth cleaning such as concealment. Therefore, reliable filth cleaning and water saving can both be achieved.

  If it progresses to step 11, the toilet bowl washing | cleaning apparatus 1 will determine whether a user is non-detection (S11). Here, the user detection determination unit 130 determines whether the user is non-detection based on the detection result by the user detection unit 140.

  When it is determined that the user is not undetected, that is, the user is detected (NO in S11), the toilet bowl cleaning device 1 returns to step 5 and repeats the process. On the other hand, if it is determined that the user is not detected (YES in S11), the process proceeds to step 12 to determine whether or not the automatic cleaning confirmation flag is set (S12). Note that the case of YES in step 11 corresponds to time t14 shown in FIG. 5, and the user changes from detection to non-detection.

  When it is determined that the automatic cleaning confirmation flag is set (YES in S12), the toilet bowl cleaning device 1 proceeds to step 13 and determines whether or not the intention cleaning flag is set (S13). If the intention cleaning flag is not set (NO in S13), automatic cleaning is executed (S14), and the process returns to Step 1 again. In step 14, the toilet bowl cleaning determining means 110 determines that the toilet bowl 2 is to be cleaned based on the fact that the automatic cleaning confirmation flag is set. Thereafter, the toilet bowl cleaning means 120 cleans the toilet bowl 2. This step 14 corresponds to time t15 shown in FIG.

  On the other hand, the toilet bowl cleaning device 1 performs automatic cleaning when it is determined that the automatic cleaning confirmation flag is not set (NO in S12) or when it is determined that the intention cleaning flag is set (YES in S13). Return to step 1 again.

  In the above, the operation | movement at the time of 1st control logic execution of the toilet bowl washing | cleaning apparatus 1 has been demonstrated using FIG.4 and FIG.5. As described above, the toilet bowl cleaning device 1 starts from the time when detection starts until the automatic cleaning confirmation time T1 elapses (time t11 in FIG. 5) to when the sound princess threshold time (T1 + T2) elapses (time t13 in FIG. 5). Depending on whether or not intention cleaning was performed during this period, it was determined whether the intention cleaning performed was to substitute Otome or for the purpose of cleaning filth, and whether or not to perform automatic cleaning was determined. ing. Specifically, it is determined that automatic cleaning is performed only when the intention cleaning performed is regarded as a substitute for Otome. Therefore, reliable filth cleaning and water saving can both be achieved.

  If NO in step 5 and YES in step 11, that is, if the user detection period is shorter than the automatic cleaning confirmation time T1, the toilet bowl cleaning device 1 does not perform automatic cleaning after the end of detection. In this way, it is determined whether or not to perform automatic cleaning based on the length of the user detection period from the start of user detection to the end of detection. Therefore, even when the automatic cleaning confirmation time T1 is set to be significantly shorter than the otohime threshold time (T1 + T2), unnecessary cleaning can be prevented and water can be saved.

[Second control logic of toilet bowl cleaning device 1]
FIG. 6 is a flowchart showing the second control logic of the toilet bowl cleaning device according to the embodiment of the present invention. FIG. 7 is a time chart when the second control logic of the toilet bowl cleaning apparatus according to the embodiment of the present invention is executed. Here, the 2nd example of operation | movement of the toilet bowl washing | cleaning apparatus 1 which concerns on this embodiment is demonstrated.

  In the following description, the same processes as those in the first control logic described above are denoted by the same reference numerals, and redundant descriptions are omitted as appropriate.

  When it determines with the user having been detected in step 3 (it is YES at S3), it progresses to step 24 and the toilet bowl washing | cleaning apparatus 1 determines whether there was a will washing request | requirement (S24). Here, intention cleaning detection determination means 210 determines whether or not there has been a request for intention cleaning based on the detection result by intention cleaning detection means 220.

  When it is determined that there is a request for intention cleaning (YES in S24), the toilet bowl cleaning device 1 executes intention cleaning (S25). In step 25, the toilet bowl cleaning determination unit 110 determines that the toilet bowl 2 is to be cleaned based on the determination that the intention cleaning detection determination unit 210 has requested the intention cleaning. Thereafter, the toilet bowl cleaning means 120 cleans the toilet bowl 2. This step 25 corresponds to times t21 to t22 shown in FIG.

  Thereafter, the process proceeds to step 26, where the toilet bowl cleaning device 1 sets a flag with intention cleaning (S26), clears the automatic cleaning confirmation flag (S27), and sets a timer T3 (S28). The toilet flushing determination unit 110 (see FIG. 3) performs the processing of these steps 26 to 28. In particular, in step 28, the timer T3 is set and time measurement of the set T3 is started.

  Note that T3 in step 28 is a threshold time for identifying whether the intention cleaning executed in step 25 is for the purpose of cleaning filth. If the period from the last intention cleaning to the end of detection when the user is not detected (time t22 to t23 in FIG. 7) is T3 or more, the toilet bowl cleaning device 1 is executed last. It is determined that the intention cleaning is not intended for cleaning filth, and automatic cleaning is performed after the end of detection. When the times t22 to t23 are shorter than T3, the toilet bowl cleaning device 1 determines that the last intention cleaning is intended for filth cleaning, and does not perform automatic cleaning after the end of detection. For example, 30 seconds is set in T3. The timer T3 corresponds to a “second predetermined period” in the claims.

  On the other hand, when it is determined in step 24 that there is no intention cleaning request (NO in S24), the toilet cleaning device 1 proceeds to step 29 without executing steps 25 to 28.

  When proceeding to step 29, the toilet bowl cleaning device 1 determines whether or not the intention cleaning flag is set (S29). If the intention cleaning flag is set (YES in S29), it is determined whether T3 has elapsed (S30).

  The toilet bowl cleaning device 1 sets the flag with intention cleaning and determines that the time T3 has elapsed (YES in S29 and YES in S30), or does not set the flag with intention cleaning (NO in S29). ), An automatic cleaning confirmation flag is set (S31). On the other hand, if the intention cleaning flag is set and the time T3 has not elapsed (YES in S29 and NO in S30), the process proceeds to step 32 without performing any processing. The toilet flushing determination unit 110 (see FIG. 3) performs the processing of these steps 29 to 31.

  By the processing of steps 29 to 31 described above, the toilet bowl cleaning device 1 executes at least one intention cleaning, and when the time equal to or longer than T3 has elapsed since the last intention cleaning is performed (YES in S29 and S30) YES), it is determined that the intention cleaning executed last is not intended for cleaning filth, and an automatic cleaning confirmation flag is set to perform automatic cleaning (S31). If the intention cleaning has never been executed (NO in S29), the automatic cleaning confirmation flag is set to perform automatic cleaning (S31). On the other hand, when the intention cleaning is executed, but the time of T3 has not elapsed since the last intention cleaning is executed (NO in S30), the intention cleaning executed last is for the purpose of cleaning filth. Since it is determined that there is an automatic cleaning, the automatic cleaning determination flag is cleared because automatic cleaning is not performed.

  As described above, the toilet cleaning device 1 determines whether or not the period from the intention cleaning to the end of detection when the user is not detected is equal to or greater than T3. It is identified whether it is the purpose. Therefore, reliable filth cleaning and water saving can both be achieved.

  Thereafter, in step 32, the toilet bowl cleaning device 1 determines whether or not the user is not detected (S32). Here, the user detection determination unit 130 determines whether the user is non-detection based on the detection result by the user detection unit 140.

  When the toilet cleaning device 1 determines that the user is not undetected, that is, the user is detected (NO in S32), the process returns to step 24 and repeats the process. On the other hand, when it is determined that the user is not detected (YES in S32), the process proceeds to step 33, and it is determined whether or not the automatic cleaning confirmation flag is set (S33). Note that the case of YES in step 32 corresponds to time t23 shown in FIG. 7, and the user changes from detection to non-detection.

  When it is determined that the automatic cleaning confirmation flag is set (YES in S33), the toilet bowl cleaning device 1 proceeds to step 34, performs automatic cleaning (S34), and returns to step 1 again. In step 34, the toilet bowl cleaning determining means 110 determines that the toilet bowl 2 is to be cleaned based on the fact that the automatic cleaning confirmation flag is set. Thereafter, the toilet bowl cleaning means 120 cleans the toilet bowl 2. This step 34 corresponds to time t24 shown in FIG.

  On the other hand, when it is determined that the automatic cleaning confirmation flag is not set (NO in S33), the toilet bowl cleaning device 1 returns to Step 1 again without performing automatic cleaning.

  As described above, the operation of the toilet cleaning device 1 when executing the second control logic has been described with reference to FIGS. 6 and 7. In this way, the toilet bowl cleaning device 1 identifies whether or not the performed intention cleaning is intended for filth cleaning, depending on the time from the last intention cleaning to the time when the user is not detected, It is determined whether or not automatic cleaning is performed. Therefore, reliable filth cleaning and water saving can both be achieved.

  As mentioned above, although embodiment of this invention was described, the said embodiment showed one of the application examples of this invention, and in the meaning which limits the technical scope of this invention to the specific structure of the said embodiment. Absent. Various modifications can be made without departing from the scope of the present invention.

For example, by combining the first control logic and the second control logic, the toilet bowl cleaning device 1 (the toilet bowl determination unit 110) performs the third determination ( NO in S9) of the first control logic. In some cases, steps 28-34 of the second control logic may be performed. In this case, it is determined that automatic cleaning is performed when the time from intention cleaning to the end of detection is T3 or more, and automatic cleaning is not performed when the time from intention cleaning to the end of detection is shorter than T3 (S30). . In this way, by measuring the period from when intention cleaning is performed until the user becomes non-detected, whether or not intention cleaning is intended for filth cleaning is determined, and then the necessity of automatic cleaning is determined. . Therefore, reliable filth cleaning and water saving can both be achieved.

1 Toilet bowl cleaning device 2 Toilet bowl 11 Solenoid valve (cleaning valve)
12 human body detection sensor 13 controller 14 remote controller 100 toilet cleaning control device 110 toilet cleaning determination means 120 toilet cleaning means 130 user detection determination means 140 user detection means 200 intention cleaning detection apparatus 210 intention cleaning detection determination means 220 intention cleaning detection means

Claims (2)

A toilet cleaning device that detects a user and automatically cleans the toilet,
Intention washing detection means for detecting a request for intention washing for manually washing the toilet;
User detection means for detecting the user;
And toilet cleaning determination means for performing determination related to cleaning of the toilet,
The toilet flushing determination means includes
The intention washing detection during a user detection period, which is a period from a detection start when the user detection means starts detection of the user to an end of detection when the user detection means stops detecting the user. If the intention washing is not performed based on the request detected by means have line automatic cleaning after at the detection end,
If the intention cleaning is performed after the first predetermined period has elapsed since the start of the detection, automatic cleaning is not performed after the end of the detection,
In no event where the intention washing is performed during the first predetermined time period, if the period from the intention washed until the detection end is not less than the second predetermined time period for automatic cleaning after at the detection end, If the period from the intention washed until the detection end is shorter than the second predetermined time period is not adversely line automatic cleaning after at the detection end,
Flights instrument cleaning apparatus. The toilet bowl cleaning apparatus according to claim 1, wherein the toilet cleaning determination unit determines that the automatic cleaning is not performed when the user detection period is shorter than a predetermined period shorter than the first predetermined period .

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