JP2012205845A - Heating toilet seat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating toilet seat device that detects movement of a user who enters in a toilet room and can rise temperature of the toilet seat at the sitting point of time of the user to a comfortable temperature, even if the installation environment changes, while attempting to reduce the standby temperature to reduce power consumption of the heating toilet seat device.SOLUTION: The heating toilet seat device includes: a toilet seat; a heating part of the toilet seat; a door of the toilet room; a sensor part that detects the user that exists outside of the toilet room opening the door, and the user entering the toilet room by radio wave; a control part of the heating part and the sensor part; and a storage part that store the control information including the information used for the heating control of the toilet seat. The control part performs heating control of the toilet seat based on the approach time from at least when the sensor part detects opening of the door by the user until when detecting the user entering the toilet room, and the control part corrects the control information stored in the storage part based on the approach time that changes according to the change of the environment where the heating toilet seat is actually set up.

Description

  The present invention relates to a toilet seat device, for example, a heating toilet seat device for heating a toilet seat.

  The heating toilet seat device generates heat by constantly applying a voltage to a heating wire built in the toilet seat, and always warms the toilet seat to a desired temperature set by the heat. Accordingly, the heating toilet seat device prevents the user from feeling uncomfortable due to the coldness of the toilet seat when sitting on the toilet seat, and the user can comfortably sit on the toilet seat.

  In such a heated toilet seat device, it is desired to control the toilet seat temperature so that the power consumption when the toilet is not used is reduced as much as possible, while the toilet seat can be seated on a comfortable seat when the toilet is used. Therefore, when the user detects a user entering the toilet room using a pyroelectric infrared sensor with the toilet seat standby temperature kept low to reduce power consumption when the toilet is not used, There is known an immediately warming type heating toilet seat device that raises the temperature of a toilet seat from a standby temperature to a target seating temperature (Patent Document 1). Such an immediately warming type heated toilet seat device is a device that rapidly heats the toilet seat when the user uses the toilet bowl, and can reduce the standby temperature when the toilet bowl is not used, which is effective in reducing power consumption. is there.

Patent No. 40686648 JP 2009-165684 A

  However, the conventional immediate warming type heating toilet seat device detects the user after entering the toilet room and raises the temperature from the standby temperature to the target seating temperature. Usually, the time from entering the room to sitting is about 6 seconds, and when the user is lightly dressed, the time from entering the toilet room to sitting on the toilet seat is about 4 seconds. In other words, there is a limit to the time for raising the temperature from the standby temperature to the seating temperature. Therefore, there is a possibility that the conventional immediate warm type heating toilet seat device cannot raise the toilet seat to a comfortable temperature at the time of sitting. Alternatively, the standby temperature is set to a high value at the expense of energy saving in order to reliably raise the toilet seat to a comfortable temperature when the user is seated even for a short time.

  In order to reduce the power consumption while raising the toilet seat to a comfortable temperature at the time of sitting, it is conceivable to increase the heating capability of the heater and heat the toilet seat in a short time. However, increasing the heating capability of the heater creates a safety problem. Further, when the heater has a high temperature raising capability, there arises a problem that wasteful power consumption increases when the temperature of the toilet seat is raised even when urination is not required, even when the toilet seat is not needed.

  Therefore, in order to reduce power consumption while maintaining the heating capability of the heater low, it is desirable to lengthen the heating time so that the temperature can be surely raised to a comfortable temperature even from a low standby temperature. In order to lengthen the temperature rising time in this way, a method using an electric light switch can be considered in order to start temperature rising control by warming immediately before the user enters the toilet room (Patent Document 2). However, the toilet room light switch is not necessarily used by a user entering the toilet room, such as when the inside of the toilet room is bright. When the toilet seat temperature is controlled by turning on / off the light switch, the user cannot sit up on the toilet seat because the temperature of the toilet seat cannot be raised to a comfortable temperature for users who enter the toilet room without using the light switch. It feels cold and uncomfortable.

  In addition, it is conceivable to increase the temperature raising time by installing the infrared sensor at a position far from the toilet room. However, when trying to determine whether a user enters a toilet room with an infrared sensor with a narrow directivity and a relatively large propagation loss (attenuation) in space, a plurality of infrared sensors are installed in the hallway outside the toilet room, And it is necessary to link each infrared sensor and heating control of a heating toilet seat apparatus. It is not practical to use such a method only for immediate warming control of the toilet seat.

  In addition, even if the distance from the toilet room to the user can be grasped by installing the infrared sensor, the time until the user enters the toilet room from that position, the residence form from that position to the toilet room, It depends on the walking speed of the user. That is, the time from when the sensor detects the user until entering the toilet room is not simply determined from the position information. For this reason, in the conventional immediate warm type heated toilet seat device that simply starts immediate warming based on the position information, there is a possibility that the temperature of the toilet seat cannot be raised to a comfortable temperature when the user is seated.

  As described above, in the conventional immediate warm type heating toilet seat device, the temperature of the toilet seat is raised to a comfortable temperature at the time of the user's seating (first purpose), and the standby temperature of the toilet seat is reduced as much as possible. It has been difficult to achieve both reduction in power consumption (second purpose).

  In addition, the balance between the first purpose and the second purpose changes depending on the environment in which the heating toilet seat device is actually installed (change in temperature according to the season, opening / closing state of the toilet lid, setting by the user, etc.). . Therefore, even if the first object and the second object are made compatible in a certain environment, the first object and the second object may not be compatible due to subsequent environmental changes. For example, if the room temperature in the toilet room becomes low due to seasonal changes in temperature, even if the power to heat the toilet seat is the same, the speed of raising the toilet seat temperature will be slow, and if the standby temperature is always constant, the user will enter the toilet seat There is a high possibility that the temperature of the toilet seat cannot be raised to a comfortable temperature by the time of sitting. That is, the first object may not be achieved due to a change in the installation environment of the heating toilet seat device. On the other hand, when the room temperature of the toilet room becomes high, the standby temperature is originally set low and the power consumption of the heating toilet seat can be further reduced, but the standby temperature is set higher than necessary, which is wasteful. Power consumption may increase. That is, the second object may not be achieved due to a change in the installation environment of the heating toilet seat device.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to reliably detect the movement of a user who wants to enter a toilet room and maintain the standby temperature of the heating toilet seat device as low as possible. Then, it is providing the heating toilet seat apparatus which can raise the temperature of the toilet seat at the time of a user's seating to a comfortable temperature reliably, reducing the power consumption of a toilet seat.

  Further, the object of the present invention is to reduce the standby temperature so as to reduce the power consumption of the heating toilet seat device as much as possible even if the environment in which the heating toilet seat device is installed changes. It is an object of the present invention to provide a heating toilet seat device that can reliably raise the temperature of a toilet seat at a user's sitting time to a comfortable temperature.

  A heating toilet seat device as a first aspect of the present invention includes a toilet seat installed in a toilet room, a heating unit for heating the toilet seat, a door installed at an entrance of the toilet room where a user enters and exits, and a radio wave Detecting that a user outside the toilet room has opened the door, detecting that the user has entered the toilet room, and a control unit for controlling the heating unit and the sensor unit; And a storage unit that stores control information including information used for heating control of the toilet seat, and the control unit detects that the user has opened the door by at least the sensor unit, and then the user The heating control of the toilet seat is performed based on the approach time until it is detected that the user has entered the toilet room, and the heating toilet device changes as the environment in which the heating toilet seat device is actually installed changes. Based on the approach time, and corrects the control information stored in the storage unit.

  As a means for reducing the power consumption of the heating toilet seat device, it is effective to set the standby temperature when the toilet seat is not used low. In consideration of prevention of toilet seat breakage due to an excessive cooling cycle and safety such as electric shock, it is preferable to control the heating unit (for example, a tubing heater or a planar heater) with relatively little heating power. The longer the time from detection of a user using the toilet room at the sensor unit to the time the user sits on the toilet seat, the lower the standby temperature of the toilet seat is set, and the heating unit is controlled with less heating power. It becomes possible to do. On the other hand, the walls and doors of toilet rooms are made of wood or resin having a relatively low relative dielectric constant. For this reason, by using a radio wave sensor that detects and transmits a radio wave beam (e.g., using a microwave to millimeter wave frequency band) that is relatively easy to pass through walls and doors as a sensor unit. Since it is possible to detect a user who has entered the detection area of the radio wave sensor outside the toilet room as well as in the toilet room, the time from when the user using the toilet room is detected until the user is seated on the toilet seat , Longer than the conventional heated toilet seat device.

  However, users who use the heated toilet seat device (age, physique, customs, bags, etc.), the structure of the toilet room where the heated toilet seat device is installed (the size of the toilet room, the position of the door, the material of the walls and doors, etc.), Furthermore, the user who entered the detection area outside the toilet room is detected due to the difference in the structure of the residence or building where the toilet room is located (the size of the space adjacent to the door, the installation of water facilities around the toilet room, etc.) The time from when the user is seated on the toilet seat changes. In addition, a heated toilet seat device is provided in a toilet room (for example, a toilet room provided in the living room or a toilet space in which a plurality of toilet rooms are arranged in a row) in which the movement of the user who has entered the detection area outside the toilet room varies. When it is installed, it is difficult for the control unit to determine whether or not the user enters the toilet room when the sensor unit detects the user who has entered the detection area. There are cases where the heating power cannot be controlled efficiently.

  The radio wave sensor is not only the movement of the user using the toilet room, but also the movement of the toilet seat and toilet lid provided in the heating toilet seat device, the movement of opening and closing the door installed at the entrance of the toilet room, etc. It is possible to detect an object that moves within the detection area.

  There are various materials for doors installed at the entrances and exits of toilet rooms, such as wood and light metal materials (steel plates) having a relatively low relative dielectric constant. Further, when the size of the user and the size of the door (effective surface area for receiving radio waves) is compared, the door is larger and the door is planar with respect to a user with many irregularities. For this reason, when comparing the magnitude of the reflected wave from the user entering the detection area of the radio wave sensor outside the toilet room and approaching to the vicinity of the door and the reflected wave from the door that is generated when the user opens the door The latter is bigger. Even when the door is made of wood with a relatively high transmittance, when the user opens the door, the incident angle of the radio wave on the door surface is larger than the direction (polarization) of the radio wave emitted from the radio wave sensor. Then, the reflectivity of radio waves increases on the door surface. For this reason, the reflected wave from the door that is generated when the user opens the door is larger than the reflected wave from the user approaching to the vicinity of the door. When the door is made of a light metal material, the reflected wave from the door is larger than the reflected wave from the user.

  The value (amplitude voltage value) measured when the reflected wave from the user who enters the detection area of the radio wave sensor outside the toilet room and approaches the door is received by the radio wave sensor is α, and the door is generated when the user opens the door If the value measured by receiving the reflected wave from the radio wave sensor with β is β, the threshold required to detect the user opening the door with the radio wave sensor is larger than the measured value α, Small value. If the threshold is set according to the installation environment of the heating toilet seat device, it can be detected by the radio wave sensor that the user who has entered the detection area outside the toilet room has opened the door of the toilet room.

  In this way, the control unit indirectly detects the movement of the door that occurs when the user who has entered the detection area outside the toilet room opens the door installed at the entrance and exit of the toilet room by the radio wave sensor. Can surely enter the toilet room. Accordingly, it is possible to efficiently control the toilet seat temperature by discriminating between a user who has just entered the detection area outside the toilet room and a user who uses the toilet room.

  Also, in a toilet room used by multiple users (children, adults, and elderly people), if you attempt to control the toilet seat temperature based on the reflected wave (reflected power) from the user who entered the detection area outside the toilet room, Since the value (amplitude voltage value) received and measured by the sensor varies depending on the physique and traveling direction of the user approaching the toilet room, the structure of the toilet room, the wall and the door material, etc., the control unit has a complicated control method It affects the responsiveness to detect and judge. On the other hand, when the temperature of the toilet seat is controlled based on the reflected wave (reflected power) from the door that is generated when the user who has entered the detection area of the radio wave sensor outside the toilet room opens the door, the heating toilet seat device is temporarily installed in the toilet room. Is installed, the reflected wave from the door when the door is opened (the timing at which the reflected wave increases and the reflected power) hardly varies. Since the heating toilet seat device of the present invention detects that the user who has entered the detection area outside the toilet room has opened the door of the toilet room using the radio wave sensor, the control unit has a simple control method and is excellent in responsiveness.

  Furthermore, the time from when the user who has entered the detection area outside the toilet room opens the toilet room door to enter the toilet room is the structure of the toilet room where the heating toilet seat is installed (the door installed in the toilet room) And the door opening direction, the direction in which the user approaches the toilet room, the moving speed at which the user enters the toilet room, the user's habits (rational behavior patterns), and the like. The heating toilet seat device according to the present invention is based on the approach time from when the sensor unit detects that the user who has entered the detection area outside the toilet room opens the door to when the user enters the toilet room. To control the toilet seat temperature. That is, the standby temperature when the toilet seat is not used and the heating power of the heating unit are determined as a part of the temperature raising time required to raise the toilet seat to a comfortable temperature. Therefore, even if the standby temperature is lowered in consideration of power consumption, not only can the temperature of the toilet seat be increased to a comfortable temperature when the user is seated on the toilet seat, but also safety is taken into consideration. It is also possible to set the heating power of a heating unit (such as a tubing heater or a planar heater) that heats the toilet seat as low as possible.

  The heating toilet seat device according to the present invention can detect that a user who has entered a detection area outside the toilet room using a radio wave sensor opens the toilet room door, so that the toilet seat temperature is set to the standby temperature. It is possible to take a long time to raise the temperature to the target temperature when the user is seated. In addition, the toilet seat temperature is efficient in accordance with the actual installation environment (the user using the toilet room, the structure of the toilet room, the structure of the residence or building where the toilet room is located, the natural phenomenon that occurs in the toilet room, etc.) It can be controlled well. As a result, the heating toilet seat device of the present invention raises the toilet seat temperature at the time of user's seating to an appropriate temperature (comfort or temperature at which the user does not feel cold when seated on the toilet seat) (first object); The standby temperature of the heating toilet seat device can be reduced to reduce power consumption (second purpose).

  On the other hand, changes in the environment in which the heated toilet seat device is installed, for example, changes in the walking speed of the user over time, changes in the structure of the toilet room due to remodeling, changes in the opening / closing state of the toilet room door and toilet lid due to user convenience For example, the temperature of the toilet seat can be raised to a comfortable temperature when the user is seated (first purpose), and the standby temperature can be lowered as much as possible to reduce power consumption (second purpose). There are times when it stops.

  The heating toilet seat device according to the present invention corrects the control information stored in the storage unit based on the approach time that changes as the installation environment changes, so that the toilet seat temperature is adjusted using the control information suitable for the change in the installation environment. And the balance between the first purpose and the second purpose can be rebalanced. Therefore, even if the environment in which the heating toilet seat device is installed changes, while reducing the standby temperature so as to reduce the power consumption of the heating toilet seat device as much as possible in that environment, the toilet seat when the user is seated is reduced. The temperature can be reliably raised to the target temperature (the temperature at which the user feels comfortable).

  The heating toilet seat device as a second aspect of the present invention is the heating toilet seat device according to the first aspect, wherein the control information includes at least one information of a standby temperature of the toilet seat and heating power of the heating unit, The control unit corrects the control information so as to raise the temperature of the toilet seat when the user is seated from a standby temperature to a target temperature when the approach time changes due to a change in environment. To do.

  If the set value of the standby temperature of the toilet seat corresponding to the change in the approach time and the setting value of the heating power of the heating unit corresponding to the change in the approach time are previously stored in the storage unit as the control information, the heating toilet seat device is actually used. When the approach time changes with the change of the environment installed in the control information, the control information can be easily corrected based on the approach time. When the installation environment (including the usage state) of the heating toilet seat device changes and the approach time becomes shorter than the conventional one, the control unit sets the standby temperature of the toilet seat in order to achieve the first object. The control information is corrected so as to increase (the heating power of the heating unit at this time is the same as in the conventional case) or to increase the heating power of the heating unit (the standby temperature of the toilet seat at this time is the same as the conventional one). On the contrary, when the approach time is longer than the conventional one, the control unit lowers the setting of the standby temperature of the toilet seat in order to achieve the second object (the heating power of the heating unit at this time is the conventional value). The control information is corrected so that the heating power of the heating unit is lowered (the standby temperature of the toilet seat at this time is the same as before).

  When the heating power of the heating unit is changed, the heating rate (° C./hour) representing the toilet seat temperature rising per unit time changes. When the heating power of the heating unit is increased, the rate of temperature rise is increased and the toilet seat can be heated to a desired temperature in a relatively short time. Conversely, when the heating power of the heating unit is lowered, the rate of temperature rise is slowed down, and it takes a relatively long time to heat the toilet seat to a desired temperature. The temperature rise rate of the toilet seat varies depending on the configuration (thickness, shape, material, etc.) of the toilet seat in addition to the heating power of the heating unit. However, since the configuration of the toilet seat does not change once it is determined, the change in the heating rate of the toilet seat is determined by the heating power of the heating unit. As control information, if the information on the heating rate (heating time per unit time) of the toilet seat corresponding to the change in the magnitude of the heating power of the heating unit is stored in advance in the storage unit, the heating toilet seat device actually When the approach time changes with a change in the environment in which the apparatus is installed, a plurality of standby temperature of the toilet seat based on the approach time and heating power of the heating unit necessary for raising the temperature from the standby temperature to the target temperature Control information can be corrected. For this reason, the degree of adaptation to the installation environment where the heating toilet seat device is actually used is high, and the toilet seat temperature can be controlled more efficiently.

  Since the heating toilet seat device of the present invention corrects the control information in accordance with the change in the installation environment, the balance between the first object and the second object is maintained under the installation environment while keeping the power consumption as low as possible. It can be reworked and balanced. For this reason, it is possible to reliably raise the temperature of the toilet seat from the standby temperature to the target temperature while reducing the power consumption of the toilet seat as much as possible.

  The heating toilet seat device according to a third aspect of the present invention is the heating toilet seat device according to the second aspect, wherein the storage unit detects that the user has opened the door by the sensor unit. Information on the total time up to the point when it is detected that the user has been seated on the toilet seat is stored, and the control unit is configured to calculate an actual value of the total time that changes as the environment changes and the total time stored in the storage unit. The control information is corrected based on the difference.

  If the measured value of the total time that changes with the change in the environment where the heating toilet seat is actually installed is shorter than the total time stored in the storage unit, the temperature of the toilet seat is targeted by the time the user is seated on the toilet seat. In some cases, the temperature cannot be raised to the temperature. Therefore, based on the difference between the actual measurement value of the total time and the total time stored in the storage unit, the control unit calculates the standby temperature of the toilet seat in the control information or the heating power of the heating unit (temperature increase rate of the toilet seat). to correct. For this reason, the temperature of a toilet seat can be raised to target temperature by the time a user sits on a toilet seat. The heating toilet seat device of the present invention corrects the control information based on the difference between the measured value of the total time and the total time stored in the storage unit even if the actual total time changes due to a change in the installation environment. The first object and the second object can be made compatible with each other efficiently.

  A heating toilet seat device according to a fourth aspect of the present invention is the heating toilet seat device according to the second aspect, wherein the storage unit detects that the user has opened the door by the sensor unit. Stores information on approach time up to the point in time when it is detected that the user has entered the toilet room, and the control unit measures the approach time measured value that changes with changes in the environment and the approach time stored in the storage unit. The control information is corrected based on the difference between the two.

  If the measured approach time, which varies with the change in the environment where the heating toilet seat is actually installed, is shorter than the approach time stored in the storage unit, the temperature of the toilet seat is targeted by the time the user is seated on the toilet seat. In some cases, the temperature cannot be raised to the temperature. Therefore, the control unit calculates the standby temperature of the toilet seat in the control information or the heating power of the heating unit (temperature increase rate of the toilet seat) based on the difference between the actual approach time value and the approach time stored in the storage unit. to correct. For this reason, the temperature of a toilet seat can be raised to target temperature by the time a user sits on a toilet seat. The heating toilet seat device of the present invention corrects the control information based on the difference between the actual approach time value and the approach time stored in the storage unit even if the actual approach time changes due to a change in the installation environment. The first object and the second object can be made compatible with each other efficiently.

  A heating toilet seat device according to a fifth aspect of the present invention is the heating toilet seat device according to the second aspect, wherein the storage unit detects that the user has entered the toilet room by the sensor unit. Stores information on the sitting time up to the point of time when it is detected that the user has been seated on the toilet seat, and the control unit includes an actual measurement value of the sitting time that changes as the environment changes, and the sitting time stored in the storage unit. The control information is corrected based on the difference between the two.

  The sitting time constitutes the total time together with the approach time. That is, the total time is the sum of the approach time and the seating time. If the actual value of the sitting time that changes with the change in the environment in which the heating toilet seat is actually installed is shorter than the sitting time stored in the storage unit, the temperature of the toilet seat is targeted by the time the user sits on the toilet seat. In some cases, the temperature cannot be raised to the temperature. Therefore, based on the difference between the actual value of the sitting time and the sitting time stored in the storage unit, the control unit determines the standby temperature of the toilet seat in the control information or the heating power of the heating unit (temperature increase rate of the toilet seat). to correct. For this reason, the temperature of a toilet seat can be raised to target temperature by the time a user sits on a toilet seat. The heating toilet seat device of the present invention corrects the control information based on the difference between the actual value of the sitting time and the sitting time stored in the storage unit, even if the actual sitting time changes due to a change in the installation environment. The first object and the second object can be made compatible with each other efficiently.

  A heating toilet seat device according to a sixth aspect of the present invention is the heating toilet seat device according to the second aspect, further comprising a function setting unit capable of setting usage information relating to a usage state of the heating toilet seat device, wherein the control unit includes: When the user sets the usage information in the function setting unit, the control information is corrected based on the usage information.

  When the user can set usage information with a function setting unit (for example, a remote controller), for example, when the user can select either the off mode or the low power consumption mode for the state of the heated toilet seat device during standby, the user is low When the power consumption mode is selected, the control unit corrects and lowers the standby temperature of the toilet seat in the control information. Alternatively, when the standby temperature of the toilet seat during standby is selectable, when the user sets the standby temperature low, the control unit corrects and decreases the standby temperature of the toilet seat in the control information. At this time, when the standby temperature of the toilet seat is simply lowered according to the setting as in the conventional case, the temperature of the toilet seat may not be raised to the target temperature when the user is seated. That is, there is a high possibility that the first object will not be achieved. On the other hand, the heating toilet seat device of the present invention lowers the standby temperature of the toilet seat as set by the function setting unit, and also increases the heating power of the heating unit (increase the temperature of the toilet seat to the target temperature when the user is seated). (Temperature speed) is corrected to the higher side. The control unit can correct the heating power of the heating unit so as to achieve the first object as much as possible while reducing the standby temperature of the toilet seat based on the setting of the user. For this reason, the heating toilet seat apparatus of this invention can correct | amend control information so that the balance of a 1st objective and a 2nd objective may be maintained as much as possible according to a user's wish.

  A heating toilet seat device according to a seventh aspect of the present invention is the heating toilet seat device according to the second aspect, wherein a user who is outside the toilet room opens the door by the sensor unit, and then the user enters the toilet room. The moving speed of entering the room is detected, and the control unit corrects the control information based on the moving speed.

  For example, when the user entering the detection area outside the toilet room opens the toilet room door and then enters the toilet room at a high moving speed, the heating toilet seat device according to the present invention has a heating unit according to the moving speed of the user. It is possible to increase (correct) the temperature increase characteristic (temperature increase rate) and to achieve both the first object and the second object efficiently without changing the standby temperature.

  A heating toilet seat device according to an eighth aspect of the present invention is the heating toilet seat device according to the second aspect, wherein the control unit corrects the control information based on an open / closed state of the door.

  When the door installed in the toilet room is opened in advance, the user who has entered the detection area outside the toilet room can enter the toilet room without opening the door. In this case, since the radio wave sensor cannot detect that the user has opened the door, the control unit cannot calculate the approach time, which hinders control of the toilet seat temperature. Therefore, when the door installed in the toilet room is closed in advance, the control information is corrected based on the approach time that changes with a change in the environment in which the door is actually installed. On the other hand, when the door installed in the toilet room is opened in advance, the control information is corrected based on the approach time set in the storage unit in advance. The open / closed state of the door may be set manually by the user or the contractor, or may be automatically determined by the control unit. If the control unit tries to automatically determine, for example, the features (amplitude voltage value, frequency, and changes in the change) extracted from the detection signal waveform generated when the door is opened in the storage unit are stored in advance. By comparing whether or not the detection signal waveform from when the user enters the detection area outside the toilet room to when entering the toilet room and sitting on the toilet seat has this feature, the open / closed state of the door can be determined. Thus, since the heating toilet seat apparatus of this invention correct | amends control information according to the opening / closing state of a door, it aims at coexistence of a 1st objective and a 2nd objective efficiently according to the opening / closing state of a door. Can do.

  If the door installed in the toilet room is open in advance, if the threshold value is set too low, the possibility of detecting a user who passes the front of the toilet room without entering the toilet room is increased, and heating power is wasted. Will consume. For this reason, when the door installed in the toilet room is opened in advance, the reflected wave (reflected power) immediately after the user enters the toilet room (the user is present at the entrance / exit of the toilet room and inside the toilet room) Preferably, the threshold value is corrected based on the magnitude of the approach time, in which case the approach time is zero seconds. In particular, when a plurality of toilet rooms are installed in parallel, a heating toilet seat is corrected by correcting the threshold in consideration of the probability that a user who has entered a detection area outside a certain toilet room will enter a certain toilet room. The device can achieve both the first purpose and the second purpose within a range that can be adapted to the actual installation environment.

  A heating toilet seat device according to a ninth aspect of the present invention is the heating toilet seat device according to the second aspect, further comprising a timer having a clock function, and the control unit corrects the control information based on a time of the timer. It is characterized by doing.

  Heating toilet seat devices are installed in toilet rooms (for example, toilet rooms installed in the living room, and toilet spaces in which a plurality of toilet rooms are arranged in a row) where the movement of the user entering the detection area outside the toilet room varies. In this case, it is difficult for the control unit to determine whether or not the user enters the toilet room when the sensor unit detects a user who has entered the detection area outside the toilet room. On the other hand, the user usually lives in a certain cycle such as every day or every week. For example, during the daytime hours of the day, it is difficult to determine whether or not to enter the room because the user is active, but conversely in the nighttime hours such as during sleep. Since the user is not active, the probability that a user who has entered the detection area outside the toilet room will enter the toilet room is high. Therefore, during the daytime period, the approach time is from the time when the sensor unit detects that the user outside the toilet room has opened the door to the time when the user detects that the user has entered the toilet room. Based on the time, the control information stored in the storage unit is corrected. In the night time zone, the approach time is from the time when the sensor unit detects the user who has entered the detection area outside the toilet room to the time when the user detects that the user has entered the toilet room, and is based on the approach time. The control information stored in the storage unit is corrected.

  The heating toilet seat device of the present invention changes the approach time acquisition method according to the life rhythm of the user, and corrects the control information based on the approach time. For this reason, the approach time can be made longer in the night time zone than in the day time zone, and the standby temperature of the toilet seat can be lowered and the power consumption can be reduced while achieving the first object.

  The heating toilet seat device as a tenth aspect of the present invention is the heating toilet seat device according to the second aspect, wherein the storage unit is a threshold value used for determining when the user opens the door by the sensor unit. The information is stored, and the sensor unit detects radio wave noise when the user is not detected, and the control unit corrects the threshold based on the magnitude of the noise that changes as the environment changes. It is characterized by that.

  Radio wave noise here refers to, for example, the movement of a toilet room such as the movement of the sealed water in the bowl of a toilet bowl where the heating toilet seat is installed, and the movement of a ventilation fan installed in the toilet room. The movement refers to a signal when a radio wave sensor detects a reflected wave from an object not directly related. The heating toilet seat device according to the present invention is a user who has entered a detection area outside the toilet room in order to correct the threshold value of the amplitude voltage and frequency for detection and judgment based on the magnitude of radio noise generated in a specific installation environment. Can accurately detect that the door of the toilet room has been opened. In this way, by correcting the threshold value so as to reduce erroneous detection due to radio noise, the first object and the second object can be balanced so as to reduce power consumption as much as possible.

  A heating toilet seat device according to an eleventh aspect of the present invention is the heating toilet seat device according to the tenth aspect, further comprising a toilet lid that covers the toilet seat in a closed state and opens the toilet seat in an open state, The unit corrects the threshold based on an open / closed state of the toilet lid.

  The directivity and reach of radio waves radiated from the radio wave sensor vary depending on whether the toilet lid is opened or closed. For example, when the toilet lid exists as a shield in the traveling direction of the radio wave emitted from the radio wave sensor (the toilet lid is closed), the directivity (maximum radiation intensity and half-value angle) of the radio wave emitted from the radio wave sensor is Change. In addition, reflection and attenuation occur when passing through the toilet lid. When the toilet lid is in the open state and in the closed state, the power reaching the outside of the toilet room changes, so that the reflected wave from the user and the reflected wave from the door change. Therefore, if the threshold value of the radio wave sensor is the same regardless of whether the toilet lid is opened or closed, it may not be possible to accurately detect that the user has opened the door. The heating toilet seat device of the present invention corrects the threshold based on the open / closed state of the toilet lid. For example, when the toilet lid is closed, the threshold value is corrected to the lower side, and when the toilet lid is opened, the threshold value is corrected to the higher side. As means for detecting the opening / closing state of the toilet lid, a toilet lid opening / closing sensor for detecting the opening / closing of the toilet lid may be installed in the vicinity of the toilet lid. In addition, since the movement path along which the toilet lid rotates (opens and closes) is the same, the movement of the toilet lid opening and closing can be detected by a change in amplitude voltage, phase difference or the like by the radio wave sensor. Further, if a mechanism for automatically opening / closing the toilet lid is provided, the controller can recognize the opened / closed state of the toilet lid. Thereby, it can be judged reliably that the user who entered the detection area outside the toilet room has opened the door of the toilet room, and both the first purpose and the second purpose can be efficiently achieved.

  A heating toilet seat device as a twelfth aspect of the present invention is the heating toilet seat device according to the second aspect, further comprising temperature measuring means for measuring a room temperature in the toilet room, wherein the storage unit is a reference for the control information The reference room temperature information is stored in advance, and the control unit is configured to control the control information based on a difference between the room temperature in the toilet room measured by the temperature measurement unit and the reference room temperature stored in the storage unit. It is characterized by correcting.

  Although the user's approach time does not change due to temperature changes inside and outside the toilet room, such as seasonal changes, the toilet seat temperature (target temperature) that the user feels uncomfortable (cold) when sitting on the toilet seat changes. When the room temperature is low, when the user undresses for defecation, heat is suddenly removed from the exposed part. Therefore, the target temperature when the room temperature is low is preferably higher than the target temperature when the room temperature is high. Therefore, if the heating power (heating rate) of the heating unit for heating the toilet seat is constant, the standby temperature of the toilet seat when the room temperature is low is corrected to be higher than the standby temperature when the room temperature is high. If the standby temperature is constant, the heating power of the heating unit is corrected so that the heating rate for heating the toilet seat when the room temperature is low is faster than the heating rate when the room temperature is high. When the room temperature in the toilet room changes by a predetermined value from the reference room temperature, the heating toilet seat device of the present invention has a difference between the room temperature in the toilet room measured by the temperature measuring means and the reference room temperature stored in the storage unit. Based on this, at least one of the standby temperature of the toilet seat or the heating power of the heating unit is corrected, so that both the first purpose and the second purpose can be efficiently achieved.

  Even if the environment in which the heating toilet seat device is installed changes, the heating toilet seat device according to the present invention reliably detects the movement of the user who wants to enter the toilet room in the installation environment, and enables the power consumption of the heating toilet seat device. In order to reduce as much as possible, it is possible to reliably raise the temperature of the toilet seat to a comfortable temperature while reducing the standby temperature.

The figure which shows the detection area DR1, DR2 of the heating toilet seat apparatus according to 1st Embodiment which concerns on this invention, a toilet room, and a sensor part. The block diagram which shows the structure of the heating toilet seat apparatus by 1st Embodiment. The figure which shows the voltage waveform of the electromagnetic wave or infrared rays detected by the sensor part. The figure which shows an example of the control data table of a reference | standard table. The graph which shows the relationship between the total time Ttotal and the temperature of a toilet seat. The conceptual diagram of the standard toilet room used for preparation of a reference | standard table. The figure which shows the control temperature table used in order to set standby temperature TEMPstb of an adaptation table automatically, and the target temperature table used in order to select target temperature TEMPtrg. The flowchart which shows the procedure which creates an adaptation table automatically. The figure which shows an adaptation table. The flowchart which shows the procedure of the update of an adaptation table. The flowchart which shows operation | movement of the heating toilet seat apparatus which sets a some adaptation table. The heating toilet seat device according to the second embodiment of the present invention, the conceptual diagram showing the structure of the toilet room and the user's entry direction, and the correspondence between the environmental information (I) to (V) of the heating toilet seat device and the threshold value A threshold selection table showing the relationship. The approach time selection table which shows the correspondence of environmental information (I)-(V) of the heating toilet seat apparatus according to 3rd Embodiment which concerns on this invention, a threshold value, and an estimated value. The flowchart which shows the setting procedure of the adaptation table according to 3rd Embodiment. The figure which shows the 1st correction table used in order to correct | amend an adaptation table.

  Embodiments according to the present invention will be described below with reference to the drawings. This embodiment does not limit the present invention.

(First embodiment)
FIG. 1A and FIG. 1B are diagrams showing the detection areas DR1 and DR2 of the heating toilet seat device 100, the toilet room 105, and the sensor unit 150 according to the first embodiment of the present invention. . The heating toilet seat device 100 is installed in the toilet room 105 and includes the heating toilet seat device 100 and a toilet bowl 120. The heating toilet seat device 100 includes a remote control device (remote controller) 130, a toilet seat 140, a sensor unit 150, and a control unit 210. The toilet seat 140 has a built-in heater as a heating unit. The toilet seat 140 is heated by applying a voltage to the heater and passing a current. The sensor unit 150 includes a radio wave sensor 160, a pyroelectric sensor 170, and a seating sensor 180. The toilet room 105 is a space surrounded by a wall 106 and a door 107, and the user enters the toilet room 105 through the door 107.

  The radio wave sensor 160 is, for example, a moving body detection sensor that uses a microwave frequency band. The radio wave sensor 160 opens and closes the door 107 that is generated when a user outside the toilet room 105 opens the door 107 installed at the entrance of the toilet room 105 as well as the moving state of the user moving in the toilet room 105. It is possible to indirectly detect a movement of a user who is outside the toilet room 105 trying to enter the toilet room 105. In addition, a movement state (moving state) of the user who has entered the first detection region DR1 of the radio wave sensor 160, such as a moving state in which the user opens the door 107 after the user opens the door 107 or a user is seated on the toilet seat 140. Can be detected.

  Microwave is one of the classifications based on the frequency of radio waves. Generally, it refers to a radio wave (electromagnetic wave) having a wavelength of 100 micrometers to 1 meter and a frequency of 300 megahertz to 3 terahertz. Radio waves in this range include decimeter waves (UHF), centimeter waves (SHF), millimeter waves (EHF), and submillimeter waves. The radio wave sensor 160 only needs to be able to detect the opening and closing movement of the door 107 installed in the toilet room 105 and the movement of the user entering the toilet room 105, and the usable frequency band is limited to the microwave band. Not.

  The pyroelectric sensor 170 is, for example, a pyroelectric infrared sensor, and detects that the user has entered the toilet room 105. The pyroelectric infrared sensor detects the difference between the temperature of the surrounding environment and the temperature of the object to be detected, and determines whether or not the object exists in the space (second detection region DR2). In the present embodiment, the pyroelectric sensor 170 is installed in the heating toilet seat device 100 in order to detect the human body of the user who has entered the toilet room 105, but is not limited to the pyroelectric infrared sensor.

  The seating sensor 180 is, for example, a reflective infrared sensor, and detects that a user is seated on the toilet seat 140 when detecting infrared light reflected from the human body. Note that the seating sensor 180 is not limited to the reflective infrared sensor as long as it can detect that the user is seated on the toilet seat 140.

  The radio wave sensor 160 and the pyroelectric sensor 170 may be attached to the heating toilet seat device 100 and / or the toilet 120 or the remote control device 130, or a wall surface in the toilet room 105 separately from the heating toilet seat device 100 and the remote control device 130. It may be attached to the ceiling or floor.

  The first detection region DR1 indicates a range in which the radio wave sensor 160 can detect a moving body such as a human body, and extends from the inside to the outside of the toilet room 105. The second detection area indicates a range in which the pyroelectric sensor 170 can detect a human body, and is limited to the inside of the toilet room 105 when the door 107 is closed.

  FIG. 2 is a block diagram illustrating a configuration of the heating toilet seat device 100 according to the first embodiment. The heating toilet seat device 100 includes a remote control device 130, a sensor unit 150, a toilet seat 140, a cleaning unit 200, and a control unit 210.

  The remote operation device 130 includes a function setting unit 132, a function operation unit 134, and a display unit 136. The function setting unit 132 is a means for the user to input / select various setting items such as the temperature setting of the toilet seat 140 and the water temperature setting of the cleaning device 200. The function operation unit 134 is a means for the user to operate the toilet seat 140 and the cleaning unit 200 based on the setting items set by the function setting unit 132. The display unit 136 is a unit that displays items input / selected by the user using the function setting unit 132 or the function operation unit 134. The function setting unit 132 and the function operation unit 134 include, for example, a button and a changeover switch, and the user performs setting and operation of the heating toilet seat device 100 by pressing the button or switching the changeover switch. The display unit 136 may be a liquid crystal display device, for example.

  As described above, the sensor unit 150 includes the radio wave sensor 160, the pyroelectric sensor 170, and the seating sensor 180. The radio wave sensor 160 includes a transmission antenna 162, an oscillation circuit 164, a reception antenna 166, and a detection circuit 168. In the present embodiment, the oscillation circuit 164 generates a radio wave (microwave) having a predetermined frequency and transmits the radio wave from the transmission antenna 162. The reception antenna 166 receives the reflected wave of the radio wave transmitted from the transmission antenna 162. The detection circuit 168 extracts a voltage value (amplitude voltage) and frequency difference from the reflected wave received by the reception antenna 166, and sends the difference as a detection signal to the control unit 210. If the oscillation circuit 164 includes a frequency variable circuit, the phase state of the reflected wave from the door or the human body can be extracted to recognize not only the moving speed but also the distance from the radio wave sensor 160 to the door or the human body. If a plurality of detection circuits 168 are provided, it is possible to easily determine whether a door or a human body is approaching or moving away from the radio wave sensor 160 from the phase difference between the plurality of detection signals.

  When a human body detection sensor (for example, an infrared sensor, a pyroelectric sensor, a radio wave sensor, etc.) is separately installed in the toilet room 105 and outside the toilet room 105 and an approach time T1 described later is determined, it is installed in the toilet room 105. It is necessary to communicate and synchronize with the human body detection sensor and the human body detection sensor installed outside the toilet room 105, and the control becomes complicated. The detection accuracy varies depending on the position of the human body detection sensor installed outside the toilet room 105 according to the user's preference and living environment, and the approach time T1 is affected. By providing the heating toilet seat device 100 and the remote control device 130 installed in the toilet room 105 with a radio wave sensor 160 that detects that the door 107 installed at the entrance of the toilet room 105 where the user enters and exits opens, the user Can continuously detect movement information from entering the first detection area DR1 outside the toilet room 105 and opening the door 107 until entering the toilet room 105, so there is no need to communicate or synchronize the control. It becomes simple. Moreover, the optimal approach time T1 can be determined according to the housing environment where the toilet room 105 is installed.

  In addition, in a residential environment where a specific minority user enters the toilet room 105 through the corridor adjacent to the toilet room 105, the moving speed and direction of the user passing through the corridor, the time zone during which the user passes through the corridor, Whether or not the user enters the toilet room 105 when the radio wave sensor 160 detects a user who has entered the first detection area DR1 outside the preset toilet room 105 according to the user's toilet usage status, etc. Can be estimated. If the toilet seat temperature is controlled based on the estimation result, the standby temperature is kept as low as possible and the power consumption of the toilet seat is reduced, and the temperature of the toilet seat is reliably raised to a comfortable temperature while the user is seated. Can be made.

  On the other hand, in the housing market in recent years, a house in which the toilet room 105 is provided in a wide space such as a living room without a corridor has been supplied. For this reason, when the toilet room 105 is provided in a space where the user's stay time and usage conditions vary, when the radio wave sensor 160 detects a user who has entered the first detection area DR1 outside the toilet room 105, the user can It is difficult to estimate whether to enter the room 105 or not.

  At that time, the radio sensor 160 detects the movement of the door 107 that is opened when the user who has entered the first detection region DR1 outside the toilet room 105 opens the door 107 installed at the entrance of the toilet room 105. A user who intends to enter the toilet room 105 is indirectly detected, and it can be reliably determined that the user enters the toilet room 105. In this way, regardless of the residential environment in which the heated toilet seat device 100 is installed, the standby temperature is kept as low as possible and the power consumption of the toilet seat is reduced, and the temperature of the toilet seat at the time of seating of the user is assured to a comfortable temperature. The temperature can be increased.

  The pyroelectric sensor 170 includes a lens that sets a detection region and a light receiving element that receives infrared rays emitted from the human body. The seating sensor 180 emits infrared rays and infrared reflected waves transmitted from the light emitting elements. A light receiving element for receiving is provided, and the result received by the light receiving element is sent to the control unit 210.

  The toilet seat 140 includes a heater 142 as a heating unit and a temperature detection unit (thermistor) 144. The heater 142 heats the toilet seat 140 under the control of the control unit 210. The temperature detection unit 144 detects the temperature of the toilet seat 140 and feeds back the temperature information to the control unit 210.

  The cleaning unit 200 includes a heater 202, a temperature detection unit (thermistor) 204, and a nozzle driving unit 206. The heater 202 heats the cleaning water stored in the tank in the cleaning unit 200 under the control of the control unit 210. The temperature detector 204 detects the temperature of the cleaning water and feeds back the temperature information to the controller 210. The nozzle driving unit 206 is configured to drive the nozzle and discharge cleaning water.

  The control unit 210 includes an arithmetic processing unit (CPU) 212, a storage unit 214, a timer 216, and a counter 218, and is configured to control the remote control device 130, the sensor unit 150, the toilet seat 140, and the cleaning unit 200. Has been.

  FIG. 3 is a diagram showing a radio wave or infrared voltage waveform detected by the sensor unit 150. A voltage waveform detected by the radio wave sensor 160 is indicated by W1, a voltage waveform detected by the pyroelectric sensor 170 is indicated by W2, and a voltage waveform detected by the seating sensor 180 is indicated by W3. These voltage waveforms W <b> 1 to W <b> 3 are waveforms in a desired frequency band obtained by filtering the received wave received by the sensor unit 150 using a frequency band filter included in the control unit 210. The control unit 210 detects that the radio wave sensor 160 is opened by the change in the amplitude voltage of the voltage waveforms W1 to W3 (the user who has entered the first detection region DR1 outside the toilet room 105 in order to use the toilet room 105 opens the door). It is determined that the movement of opening 107 is detected (door opening detection), the pyroelectric sensor 170 detects the user's entry (entrance detection), and the seating sensor 180 detects the user's seating (seating detection). The control unit 210 starts heating the toilet seat 140 from the time when the radio wave sensor 160 detects the movement of the door 107 opening (the measured value of the reflected wave exceeds a predetermined threshold).

  When the user approaches the toilet room 105 and enters the first detection region DR1 of the radio wave sensor 160, the voltage amplitude of the microwave detected by the radio wave sensor 160 increases. Thereafter, when the microwave voltage amplitude exceeds a predetermined threshold value ± Vth (for example, upper threshold voltage + Vth and / or lower threshold voltage -Vth), control unit 210 detects movement of radio wave sensor 160 opening door 107. Judge that. The threshold value is a parameter used to detect the movement of the door, for example, an upper threshold voltage and a lower threshold voltage provided with reference to a signal level (amplitude voltage) of a reflected wave generated when the door opens, or , And can be expressed by a predetermined S / N ratio.

  A time point when the opening movement of the door is detected by the radio wave sensor 160 (hereinafter referred to as a door opening time) is assumed to be t0. At the door opening time t0, the threshold width between the upper limit and the lower limit of the reflected wave signal level generated when the door is opened is reduced, and the number of times the reflected wave signal level exceeds the threshold in unit (predetermined) time is reduced. (That is, by making the judgment S / N ratio small), it can be further accelerated. However, by reducing the determination S / N ratio, it is easy to detect a user who has just entered the first detection region DR1, and thus the radio wave sensor 160 detects a human body that does not actually enter the toilet room 105. The frequency may increase. Therefore, the threshold value is set in consideration of the balance between the reflected wave generated when the door 107 is opened and the reflected wave of the user who has entered the first detection area DR1 outside the toilet room 105.

  Therefore, when the S / N ratio of the reflected wave (reflected power) from the user near the door 107 is α and the S / N ratio of the reflected wave from the door is β, the threshold value for detecting the movement of the door 107 is detected. The S / N ratio may be set so that α <threshold <β. Then, until the user opens the door 107, the radio wave sensor does not detect the user entering the first detection region DR1 regardless of the size of the user's body or the walking direction. And even if a reflected wave from a human body such as a child, an adult, an adult, and an elderly person varies, the human body can be detected indirectly when the user opens the door 107. Therefore, even in the toilet room 105 used by a plurality of users, the position where the radio wave sensor detects the user is near the door 107 outside the toilet room 105, and the user enters the toilet room 105 at that time (door opening time t0). Can be accurately detected.

  Further, when the user enters the first detection region DR1 outside the toilet room 105 and opens the door 107 of the toilet room 105, the signal obtained from the reflected wave changes not only in the voltage value but also in the frequency. Therefore, the radio wave sensor 160 can detect the moving speed at which the user opens the door 107 of the toilet room 105 by using the Doppler effect and detecting the frequency difference between the microwave transmission wave and the reception wave. The movement speed of the door 107 calculated from the frequency difference generated when the door 107 is opened tends to be relatively slow with respect to the movement speed of the human body. Therefore, when the signal level (amplitude voltage) of the reflected wave generated when the door 107 is opened is small (the S / N ratio cannot be increased), the moving speed of the door 107 is added to the control unit 210 as a detection criterion. The movement of the door 107 can be reliably detected.

  The threshold voltage ± Vth in FIG. 3 is determined by a predetermined S / N ratio (Signal-to-Noise ratio). For example, if a predetermined S / N ratio for determining a threshold (hereinafter also referred to as a determination S / N ratio) is 3, the threshold voltage is a voltage having an amplitude three times the voltage amplitude of noise (dark noise). Are the upper and lower limits. Further, when the signal level of the reflected wave generated when the door 107 is opened exceeds a threshold value a predetermined number of times in a unit (predetermined) time, the control unit 210 detects that the door 107 is opened by the radio wave sensor 160. If judged, false detection can be prevented for sudden noise. For example, assuming that the determination S / N ratio is 3 and the predetermined number is 5 times, a reflected wave having an amplitude three times or more than the noise amplitude is detected 5 times or more per unit time. In addition, the control unit 210 determines that the radio wave sensor 160 has detected the opening movement of the door 107. In this case, the counter 218 counts the peak value and the bottom value of the reflected wave exceeding both or one of the upper limit threshold value and the lower limit threshold value. The unit time and the predetermined number of times may be stored in the storage unit 214 in advance.

  As will be described later, the threshold value may be determined in advance, may be automatically determined by calculation by the calculation unit 210, or may be determined manually by a user or a contractor. After the determination, the threshold value is stored in the storage unit 214.

  After entering the first detection area DR1, the user opens the door 107 of the toilet room 105 and enters the toilet room 105. When the user enters the second detection region DR2, the pyroelectric sensor 170 detects the user's human body. When the infrared signal level exceeds a predetermined threshold voltage (change amount with respect to the initial voltage value), the control unit 210 determines that the pyroelectric sensor 170 has detected that the user has entered the toilet room 105. The point in time when the pyroelectric sensor 170 detects that the user has entered the toilet room 105 is defined as an entry point t1.

  In this embodiment, the time from the door opening time t0 to the entry time t1 is defined as the approach time T1. That is, the approach time T1 is a time from the time (t0) when the measured value of the reflected wave generated when the door 107 is opened exceeds the threshold value to the time (t1) when the user enters the toilet room 105. In other words, the approach time T1 is from the time when the user enters the first detection area DR1 outside the toilet room 105 and opens the door 107 (t0) to the time when the user enters the second detection area DR2 (t1). Is the time.

  Thereafter, when the user sits on the toilet seat 140, the seating sensor 180 detects the human body of the user. When the infrared signal level exceeds a predetermined threshold voltage, the control unit 210 may determine that the seating sensor 180 has detected that the user has been seated on the toilet seat 140. Thus, the time when the seating sensor 180 detects the user's seating is defined as the seating time t2.

  In the present embodiment, the time from the entry time t1 to the seating time t2 is defined as the seating time T2. That is, the sitting time T2 is a time from the time (t1) when the user enters the toilet room 105 and enters the second detection region DR2 to the time (t2) when the user sits on the toilet seat 140.

  From the door opening time (t0) when the radio wave sensor 160 detects that the user outside the toilet room 105 has opened the door 107 to the seating time (t2) when the seating sensor 180 detects that the user is seated on the toilet seat 140. Is defined as Ttotal. By increasing the total time Ttotal, the controller 210 can raise the toilet seat 140 to an appropriate temperature (target temperature) at the time t2 when the user is seated even if the standby temperature of the toilet seat 140 is low. If the standby temperature of the toilet seat 140 can be lowered, the power consumption of the heating toilet seat device 100 can be reduced. The standby temperature is the temperature of the toilet seat 140 during standby when the heating toilet seat device 100 is not used.

  The radio wave sensor 160 can detect that the user has entered the toilet room 105 or has been seated on the toilet seat 140 based on a time-series change in voltage value and a change in frequency (phase) of the microwave. Therefore, the pyroelectric sensor 170 and the seating sensor 180 may be omitted. That is, human body detection, room entry detection, and seating detection can be performed only by the radio wave sensor 160. In this case, since the pyroelectric sensor 170 and the seating sensor 180 are not required, the cost can be reduced and the heating toilet seat device 100 can be made compact.

  By the way, the time from when the user opens the door 107 until the user enters the toilet room 105 varies depending on the housing environment in which the heating toilet seat device 100 is actually installed. There are various positions, materials, opening and closing structures, etc. of the door 107 installed at the entrance / exit of the toilet room 105 with respect to the corridor and space where the user passes, and it is detected that the user outside the toilet room 105 has opened the door 107. The actual time (total time Ttotal) from when the user detects that the user is seated on the toilet seat 140 varies. Furthermore, the total time Ttotal also changes depending on the user's walking speed and the state of clothing. For this reason, a certain amount of estimation is required for setting the total time Ttotal or setting the standby temperature of the toilet seat 140.

  The heating toilet seat device 100 according to the present embodiment automatically sets a standby temperature suitable for the installation environment of the heating toilet seat device 100 based on the actual measurement value of the total time Ttotal. Thereby, although some estimation is required as described above, the heating toilet seat device 100 raises the temperature of the toilet seat 140 to an appropriate temperature when the user is seated (first purpose), and the heating toilet seat device It is possible to achieve both the reduction of the standby temperature of 100 and the reduction of power consumption (second purpose).

  Actually, depending on the installation environment of the heating toilet seat device 100, the first and second purposes may not always be completely compatible. However, according to the present embodiment, a standby temperature that matches the actual installation environment of the heating toilet seat device 100 as much as possible is set based on the actually measured value of the approach time T1 or the total time Ttotal. Thereby, this embodiment can set standby temperature so that useless power consumption may be reduced, balancing the 1st and 2nd objective. The details will be described below.

[Reference table]
First, the reference table of the total time Ttotal or the standby temperature of the toilet seat 140 will be described.

  FIG. 4 is a diagram illustrating an example of the control data table of the reference table. The reference table is a table that is set by a manufacturer before shipment so that the heating function of the heated toilet seat device 100 can be used immediately after the toilet room of the heated toilet seat device 100 is installed, and is stored in the storage unit 214 in advance. For example, in the reference table, the target temperature TEMPtrg is 29 ° C., the standby temperature TEMPstb is 26 ° C., the temperature ΔTEMP (ΔTEMP = TEMPtrg−TEMPstb) that is raised within the total time Ttotal is 3 ° C., the total time Ttotal is 6 seconds, and The determination S / N ratio is set to 3. Note that the standby temperature TEMPstb is set higher in the reference table so that the temperature of the toilet seat 140 reaches the target temperature TEMPtrg when the user is seated at the beginning, regardless of which user uses it.

  As described above, when the radio wave sensor 160 indirectly detects the user outside the toilet room 105 due to the opening movement of the door 107 installed at the entrance of the toilet room 105, the seating sensor 180 detects the user's seating. The actual measurement time (the actual measurement value of the total time Ttotal) varies depending on the environment in which the heating toilet seat device 100 is actually installed. For example, this environment includes the structure of the toilet room 105 itself, the structure around the toilet room 105, the user's own characteristics, the usage status of the heating toilet seat device 100, and the like. More specifically, this environment includes the position of the door 107 of the toilet room 105, the traveling direction when the user approaches the toilet room 105, the user's moving route, the walking speed, the structure of the toilet room 105, and the toilet room 105. Extending direction of the passage (corridor) leading to, opening / closing state of the door 107 in the toilet room 105, material of the wall of the toilet room 105 or material of the door 107, user age (old and young), number of clothes of the user (season), etc. It is.

  The actual measurement time (actual measurement value of approach time T1) from when the user actually enters the first detection region DR1 outside the toilet room 105 and opens the door 107 to enter the room is, for example, the position of the door 107 of the toilet room 105 The traveling direction when the user approaches the toilet room 105, the user's moving route, the walking speed, the structure of the toilet room 105, the extending direction of the passage (corridor) leading to the toilet room 105, the presence or absence of the door 107 in the toilet room 105, It varies depending on the material of the wall of the toilet room 105 or the material of the door 107. The actual measurement time (actual measurement value of the sitting time T2) from when the user actually enters the toilet room 105 until he / she sits on the toilet seat 140 is, for example, the user's age (aged man and woman), walking speed, and the number of clothes of the user It changes depending on (season).

  Therefore, the reference table shown in FIG. 4 is not necessarily adapted to the environment in which the heating toilet seat device 100 is installed. For this reason, the reference table is created based on the control data table shown in FIG. 7A and the target temperature table shown in FIG. 7B so as to suit the environment after the toilet room 105 of the heating toilet seat device 100 is installed. Preferably, it is updated by the adaptation table. In this case, since the adaptation table is created after the heating toilet seat device 100 is installed, the reference table does not necessarily have to be set.

  FIG. 5 is a graph showing the relationship between the total time Ttotal and the temperature of the toilet seat 140. The standby temperature of the toilet seat 140 is TEMPstb, the target temperature at which the user feels comfortable when seated is TEMPtrg, and the set temperature set by the user is TEMPset. The set temperature TEMPset is a desired temperature of the toilet seat 140 while the user is sitting on the toilet seat 140. The temperature of the toilet seat 140 is maintained at the set temperature TEMPset after being heated with high power so as to exceed the target temperature in a short time (for example, 6 seconds). On the other hand, the target temperature TEMPtrg is a temperature of the toilet seat 140 for preventing the user from feeling uncomfortable at the time of sitting, and differs depending on the material and shape of the toilet seat 140 and its thickness. In general, the temperature may be lower than the set temperature TEMPset.

  The controller 210 maintains the temperature of the toilet seat 140 at the standby temperature TEMPstb until the door opening detection time t0. At the door opening detection time t <b> 0, the control unit 210 starts heating the temperature of the toilet seat 140 from the standby temperature TEMPstb by the heater 142. Then, at the seating time t2, the temperature of the toilet seat 140 needs to reach the target temperature TEMPtrg. The inclination of the temperature change T140 of the toilet seat 140 shown in FIG. 5 is determined by the heat transfer characteristics from the heater 142 to the toilet seat 140, the voltage applied to the heater 142, and the energization time.

  As shown by the broken line in FIG. 5, when the actual measurement value of the total time Ttotal is shortened, the heating start time of the toilet seat 140 is delayed, so that the temperature of the toilet seat 140 is raised to the target temperature TEMPtrg when the user is seated. The standby temperature TEMPstb must be increased as shown by the arrow. Even when various users use the heated toilet seat device 100 as in the setting of the reference table, the standby temperature TEMPstb of the reference table is used to reliably raise the toilet seat 140 to the target temperature TEMPtrg at the seating time t2. The setting of is determined statistically. For example, a standard toilet room 105 as shown in FIG. 6 is set, and a plurality of users use the heated toilet seat device 100. At this time, the toilet seat apparatus 100 measures the time from the door opening detection time t0 to the seating time t2. The minimum value among the actually measured values may be set as the total time Ttotal of the reference table, and the standby temperature TEMPstb of the reference table may be set based on the total time Ttotal. The reference table after setting is stored in the storage unit 214. In the reference table, the minimum value of the actual measurement time from the door opening detection time t0 to the seating time t2 is set as the total time Ttotal. Therefore, regardless of which user uses the heating toilet seat device 100, the control unit 210 The seat 140 can be reliably heated to the target temperature TEMPtrg at the seating time t2.

  Alternatively, the most frequently used measurement value may be set as the total time Ttotal from the measured value histogram of the total time Ttotal, and the standby temperature TEMPstb may be set based on the total time Ttotal. As in the case where the user rushes into the toilet room 105, the actual measurement value from the door opening detection time t0 to the seating time t2 may be very short. By setting a time with a high frequency as the total time Ttotal, such an exceptional situation can be eliminated and the standby temperature TEMPstb of the reference table can be set.

[Adaptive table automatic setting]
Next, automatic setting of the adaptation table will be described. The reference table shown in FIG. 4 may not be suitable for the environment in which the heating toilet seat device 100 is installed as described above. In some cases, the reference table is not stored in the storage unit 214. In such a case, it is necessary to automatically or manually set an adaptation table suitable for the environment in which the heating toilet seat device 100 is installed. The adaptation table includes at least information on the standby temperature TEMPstb and the total time Ttotal (approach time T1, seating time T2) set so as to suit the installation environment of the heating toilet seat device 100. In addition, the target temperature TEMPtrg, threshold value (determination) Information such as (S / N ratio) may also be included.

  FIG. 7A is a diagram showing a control data table used for automatically setting the standby temperature TEMPstb of the adaptation table. In the present embodiment, the control unit 210 calculates the standby temperature TEMPstb suitable for the installation environment of the heating toilet seat device 100 from the control data table based on the actual measurement value of the total time Ttotal actually measured after the installation of the heating toilet seat device 100. select. Here, it is assumed that the target temperature TEMPtrg and the determination S / N ratio are fixed to the same values as those in the reference table. For example, TEMPtrg is fixed at 29 ° C. and S / N ratio is fixed at 3. When there is no reference table, the target temperature TEMPtrg and the determination S / N ratio are set by the user or the contractor operating the function setting unit 132 of the remote operation device 130.

  For example, when the actual measurement value of the total time Ttotal is 5.5 seconds, the control unit 210 determines the standby temperature TEMPstb to be 26 ° C. based on the control data table. As shown in FIG. 7A, the longer the total time Ttotal, the longer the time for heating the toilet seat 140. Therefore, the longer the total time Ttotal, the higher the temperature rise temperature ΔTEMP and the standby temperature. TEMPstb can be lowered.

  In the control data table shown in FIG. 7A, the control unit 210 determines the standby temperature TEMPstb based on the total time Ttotal. Alternatively, the sitting time T2 may be fixed to a predetermined time, and the standby temperature TEMPstb may be determined based on the actual measurement value (actual measurement time) of the approach time T1. That is, the control unit 210 may determine the actual measurement time from the detection of the user opening the door 107 to the entry detection as the approach time T1, and set the standby temperature TEMPstb based on the approach time T1. . In this case, the control data table in FIG. 7A may be a table showing the correspondence between the approach time T1 and the standby temperature TEMPstb, instead of the correspondence between the total time Ttotal and the standby temperature TEMPstb.

  FIG. 7B is a diagram showing a target temperature table used for selecting the target temperature TEMPtrg. In FIG. 7A, the target temperature TEMPtrg is fixed to a predetermined value, but the target temperature TEMPtrg is made variable by adding the target temperature table of FIG. 7B to the control data table of FIG. 7A. Can be.

  When changing the target temperature TEMPtrg (for example, 29 ° C.), the control unit 210 sets a value obtained by subtracting the temperature increase temperature ΔTEMP from the changed target temperature TEMPtrg as the standby temperature TEMPstb. For example, when the actual measurement value of the total time Ttotal is 6 seconds, the standby temperature TEMPstb is determined to be 26 ° C. according to the control data table of FIG. Since the target temperature TEMPtrg at this time is 29 ° C., the temperature rise temperature ΔTEMP is 3 ° C. When the target temperature TEMPtrg is changed from 29 ° C. to 27 ° C., the control unit 210 selects 24 ° C. (24 ° C. = 27 ° C.−3 ° C.) as the standby temperature TEMPstb. The control unit 210 may select the standby temperature TEMPstb using the target temperature table, and may calculate TEMPtrg−ΔTEMP every time the target temperature TEMPtrg is changed.

  Although not shown in FIGS. 7A and 7B, when the set temperature TEMPset of the toilet seat 140 is changed by the user, the control unit 210 determines that the target temperature TEMPtrg and / or the standby temperature TEMPstb is also the set temperature. You may change similarly to TEMPset. Further, normally, among the target temperature TEMPtrg, the standby temperature TEMPstb and the set temperature TEMPset, the temperature set by the user is only the set temperature TEMPset, but the user may also set the target temperature TEMPtrg and / or the standby temperature TEMPstb. . In this case, the user may set the target temperature TEMPtrg and / or the standby temperature TEMPstb using the function setting unit 132. When the user sets the target temperature TEMPtrg, the control unit 210 changes the standby temperature TEMPstb in the adaptation table based on the target temperature TEMPtrg selected by the user from the target temperature table. That is, the control unit 210 creates an adaptation table based on the approach time T1, and changes the standby temperature TEMPstb of the adaptation table based on the target temperature TEMPtrg selected by the user from the target temperature table.

  Thus, even when the user can set the target temperature, the heating toilet seat device 100 raises the temperature of the toilet seat to the target temperature TEMPtrg when the user is seated, and the standby temperature suitable for the installation environment TEMPstb can be set.

  Thereby, the control unit 210 can set the standby temperature TEMPstb corresponding to the target temperature according to the user's preference. The adaptation table is adapted to the installation environment of the heating toilet seat device 100. Therefore, the heating toilet seat device 100 can create an adaptation table that further considers the user's preferences while maintaining the balance between the first and second purposes.

  FIG. 8 is a flowchart showing a procedure for automatically creating an adaptation table. First, it is confirmed whether or not the adaptation table is already stored in the storage unit 214 (S100). For example, when there is no reference table, a user or a contractor sets a target temperature TEMPtrg, a determination S / N ratio, and the like, and an adaptation table is created based on the settings. Thus, when the adaptation table has already been created and stored in the storage unit 214 (YES in S100), immediate heating control of the heating toilet seat device 100 is executed using the adaptation table (S120). .

  When the adaptation table is not stored in the storage unit 214 (NO in S100), the control unit 210 reads the reference table from the storage unit 214 (S100), and starts immediate warming control using the reference table (S120).

  Then, until the radio wave sensor 160 detects that the user approaches the toilet room 105, enters the first detection region DR1, and opens the door 107 (NO in S130). In the standby state, the control unit 210 maintains the temperature of the toilet seat 140 at the standby temperature TEMPstb.

  When the user approaches the toilet room 105 and opens the door 107 and the measured value of the reflected wave of the microwave exceeds the threshold (YES in S130), the control unit 210 detects that the door 107 is opened by the radio wave sensor 160. Judge that it was done. At the same time, the heating toilet seat device 100 starts the temperature raising operation of the toilet seat 140, and the timer 216 starts measuring time (S140).

  Next, when the user enters the toilet room 105 and the pyroelectric sensor 170 detects the user's human body (YES in S150), the storage unit 214 stores the approach time T1 based on the time of the timer 216 at that time. (S160). At this time, the approach time T1 is a time (t1-t0) from the door opening detection time t0 of the radio wave sensor 160 to the entry detection time t1 of the pyroelectric sensor 170. That is, at this stage, an actual measurement value of the approach time T1 is obtained.

  In an environment in which the door 107 is always open, for example, in a toilet room 105 in which the heating toilet seat device 100 is installed in a station or public institution, the user does not perform an operation to open the door 107. The movement of opening the door 107 cannot be detected. In this case, the storage unit 214 may store the approach time T1 from the door opening detection time t0 to the room entry detection time t1 as 0 seconds. In the toilet room 105 where the door 107 is always open, a user outside the toilet room 105 may be detected by a pyroelectric sensor, and the user detected by the pyroelectric sensor does not necessarily enter the toilet room 105. There is a case (NO in S150). In such a case, it is necessary to stop the temperature raising operation of the toilet seat 140. Therefore, after the entrance detection time t1, when the time of the timer 216 exceeds the first time limit, the control unit 210 determines that the user does not enter the toilet room 105. When the control unit 210 determines that the user does not enter the toilet room 105, the timer 216 finishes timing and resets the time (S155). Further, the heating toilet seat device 100 stops the temperature raising operation and returns to the standby state in step S130. The first time limit is set to a time that is longer than the approach time T1 of the reference table and shorter than the time from when the user enters the room until the user sits on the toilet seat 140 (corresponding to a seating time T2 described later). Stored in the unit 214 in advance.

  When the seating sensor 180 detects the seating of the user after entering the room (YES in S170), the storage unit 214 stores the seating time T2 based on the time of the timer 216 at that time (S180). At this time, the time (t2-t1) from the entrance detection time t1 of the pyroelectric sensor 170 to the seating detection time t2 of the seating sensor 180 becomes the seating time T2. That is, at this stage, an actual measurement value of the sitting time T2 and an actual measurement value (T1 + T2) of the total time Ttotal are obtained. When the approach time T1 is 0 second, the storage unit 214 may store the seating time T2 itself from the entry detection time t1 to the seating detection time t2 as the total time Ttotal.

  On the other hand, after the pyroelectric sensor 170 detects the user's entry, the user may not be seated on the toilet seat 140 as in the case of male urination (NO in S170). In such a case, it is necessary to stop the temperature raising operation of the toilet seat 140. Therefore, after the entrance detection time t1, when the time of the timer 216 exceeds the second time limit, the control unit 210 determines that the user is not seated on the toilet seat 140 of the heating toilet seat device 100 and used. In that case, in the control unit 210, the timer 216 finishes timing and resets the time (S155). Moreover, the toilet seat apparatus 100 returns to the standby state of step S130. The second time limit is set to a time sufficiently longer than the total time Ttotal of the reference table and is stored in the storage unit 214 in advance. The second control time is preferably longer than the first time limit.

  When the user who has entered the toilet room 105 is seated on the toilet seat 140 of the heating toilet seat device 100 and is determined not to use it, the measured value of the approach time T1 obtained in step S160 may be deleted from the storage unit 214. . However, the actual measurement value of the approach time T1 may be stored in the storage unit 214. In this case, the actually measured value of the approach time T1 may be used when calculating the approach time T1 of the adaptation table in step S200.

  In step S180, the timer 216 finishes timing and resets the time. Thereafter, the counter 218 increments the storage count by 1 (S190). The number of times of storage is the number of times the sitting time T2 is stored in the storage unit 214 in step S180.

  When the number of times of storage has not yet exceeded a predetermined number (for example, 10 times) (NO in S195), the heated toilet seat device 100 returns to the standby state (S130), and further approaches time T1, seating time T2, and total time Ttotal. Continue to measure each actual value. That is, the heating toilet seat device 100 repeatedly executes steps S130 to S195.

  When the number of times of storage exceeds the predetermined number of times (YES in S195), the control unit 210 calculates the measured values of the approach time T1 and the seating time T2 stored in the storage unit 214, and approaches the approach time T1 of the adaptation table, A seating time T2 and a total time Ttotal are determined (S200). For example, the control unit 210 may simply average the actually measured values of the ten approach times T1 stored in the storage unit 214, and use the average value as the approach time T1 of the adaptation table. Alternatively, the control unit 210 averages the actual measurement values excluding the maximum value and the minimum value among the ten actual measurement values stored in the storage unit 214 and uses the average value as the approach time T1 of the adaptation table. Also good. Furthermore, the control unit 210 averages five actually measured values from the smaller one of the ten actually measured values stored in the storage unit 214, and the average value is used as the adaptive table approach time T1. It is good. The seating time T2 of the adaptation table is also obtained by calculating in the same manner as the approach time T1. Further, when the actual measurement value of the total time Ttotal is stored in the storage unit 214, the control unit 210 may calculate the total time Ttotal of the adaptation table in the same manner as the approach time T1. Note that the method of calculating the approach time T1, the sitting time T2, and / or the total time Ttotal used for the adaptation table is not limited to the above calculation.

  When only the approach time T1 and the sitting time T2 of the adaptation table are calculated in step S200, and the total time Ttotal of the adaptation table is not calculated, the calculation unit 210 adds the approach time T1 and the sitting time T2 of the adaptation table. (S210), and the result may be the total time Ttotal of the adaptation table. The approach time T1, the sitting time T2, and the total time Ttotal calculated in step S200 are stored in the storage unit 214 as a part of the adaptation table (S220).

  Further, the control unit 210 refers to the control data table shown in FIG. 7A and determines the standby temperature TEMPstb using the total time Ttotal of the adaptation table (S230). For example, when the total time Ttotal of the adaptation table is 8.5 seconds, the control unit 210 determines the standby temperature TEMPstb to be 23 ° C. In this example, the standby temperature TEMPstb can be lowered by 3 ° C. from 26 ° C. in the reference table of FIG. 4 to 23 ° C. in the adaptation table. The standby temperature TEMPstb determined at this time is also stored in the storage unit 214 as part of the adaptation table. As described above, according to the present embodiment, an adaptation table including the standby temperature TEMPstb suitable for the environment in which the heating toilet seat device 100 is installed can be automatically created (S240).

  In this way, the adaptation table shown in FIG. 9 is completed. In the present embodiment, the target temperature TEMPtrg and the determination S / N ratio are fixed in advance. Further, since the temperature increase temperature ΔTEMP is a temperature difference between the target temperature TEMPtrg and the standby temperature TEMPstb, the control unit 210 simply subtracts the standby temperature TEMPstb from the target temperature TEMPtrb when the standby temperature TEMPstb is determined. The temperature rise temperature ΔTEMP can be calculated.

  After the creation of the adaptation table, the heating toilet seat device 100 performs immediate warming (heating the toilet seat 140 quickly) using the adaptation table.

  As described above, in the present embodiment, the approach time T1, the seating time T2, and / or the total time Ttotal of the adaptation table are calculated from the actually measured values, and the standby temperature TEMPstb is calculated from the control data table based on the calculation results. To decide. Thereby, this embodiment can create the adaptation table suitable for the installation environment of the heating toilet seat apparatus 100. FIG. By performing the immediate warming control according to the adaptive table, the heating toilet seat device 100 allows the temperature of the toilet seat 140 to be raised to the target temperature TEMPtrg when the user is seated in consideration of the installation environment of the heating toilet seat device 100 and possible. Therefore, a low standby temperature TEMPstb can be set. That is, the heating toilet seat device 100 according to the present embodiment takes into consideration the installation environment of the heating toilet seat device 100, and the comfort of the user when using the heating toilet seat device 100 and the reduction of the power consumption of the heating toilet seat device 100. An adaptation table can be created to balance (a balance between the first and second objectives).

  In addition, since the adaptive table is automatically created in the present embodiment, the user and the contractor do not need to set the adaptive table and do not need to be aware of the reference table and the adaptive table.

  Further, in step S200, the present embodiment creates an adaptation table for each of the approach time T1, the seating time T2, and / or the total time Ttotal based on a plurality of actually measured values, so that the adaptation to the installation environment of the heating toilet seat device 100 is performed. The accuracy of the table (degree of adaptation to the environment) is high. For example, the control unit 210 does not create the adaptation table based only on exceptional situations such as when the user rushes into the toilet room 105 and enters the room. That is, since the adaptation table is created by calculating a plurality of actual measurement values, the adaptation table can be more adapted to the installation environment of the heating toilet seat device 100. This leads to an improvement in the balance between the first and second purposes.

  In step S200, in each of the approach time T1, the seating time T2, and / or the total time Ttotal, the control unit 210 removes the maximum value and the minimum value from the plurality of actually measured values, thereby making the above exceptional The situation can be eliminated. This also leads to an improvement in the balance between the first and second purposes.

  Furthermore, in step S200, at each of the approach time T1, the seating time T2, and / or the total time Ttotal, the control unit 210 uses a plurality of actually measured values having a small value among the plurality of actually measured values, thereby increasing the moving speed. An adaptation table can be created to suit users who are lightly dressed. Therefore, the controller 210 can reliably raise the temperature of the toilet seat 140 to the target temperature TEMPtrg or higher when most users are seated. For example, when an adaptation table is created so as to be adapted to an elderly person whose movement speed is slow (actual approach time T1 is long), when a young person whose movement speed is faster than the elderly person uses the heating toilet seat device 100, It may occur that the temperature of the toilet seat 140 does not reach the target temperature TEMPtrg. In order to avoid such a situation, the control unit 210 according to the present embodiment creates a matching table so as to suit a young person whose movement speed is fast (actual approach time T1 is short). Thus, regardless of whether a young person or an elderly person uses the heated toilet seat device 100, the temperature of the toilet seat 140 can surely reach the target temperature TEMPtrg.

[Update adaptive table]
As described with reference to FIG. 8, the adaptation table is created so as to suit the installation environment of the heating toilet seat device 100. Therefore, the adaptation table once created may be used for immediate warm control continuously as it is. However, the adaptation table may not be adapted to the actual environment due to a change in the environment in which the heating toilet seat device 100 is installed. For example, a change in the number of users, a change in the age of users, a change in walking speed, a change in season (change in clothes of the user), a change in the structure of the toilet room 105 due to reform, etc. The actual total time Ttotal until may change.

  For example, when the room temperature of the toilet room 105 decreases due to a seasonal change or the like, if the approach time T1 is always constant, the temperature of the toilet seat may not be raised to the target temperature TEMPtrg when the user is seated, which may make the user uncomfortable. is there. On the other hand, when the room temperature of the toilet room 105 rises due to a seasonal change or the like, if the approach time T1 is always constant, the standby temperature TEMPstb may be higher than necessary and wasteful power consumption may increase.

  As described above, the temperature of the toilet seat 140 may not reach the target temperature TEMPtrg at the time t2 when the user is seated due to the change in the installation environment. Alternatively, there is a possibility that the standby temperature TEMPstb is higher than necessary, and the heating toilet seat device 100 consumes useless power during standby. That is, the balance between the first and second purposes once set may be lost due to a change in the installation environment of the heating toilet seat device 100. Therefore, it is conceivable to update the adaptation table again in order to balance the first and second objects.

  FIG. 10 is a flowchart showing the procedure for updating the adaptation table. First, after the adaptation table is created in FIG. 8, steps S120 to S180 in FIG. 8 are further executed. Thereby, the actual measurement value of the approach time T1 (update actual measurement time) and the actual measurement value of the sitting time T2 are further measured. Each measured value of the approach time T1 and the seating time T2 is stored in the storage unit 214. Here, the measured values of the newly measured approach time and seating time are T1N and T2N, respectively.

  Next, the control unit 210 compares the approach time T1N as the update actual measurement time with the approach time T1 of the adaptation table (S300). For example, it is determined whether or not the approach time T1N is within a predetermined ratio range (for example, ± 30%) with respect to the approach time T1 of the adaptation table. This is to eliminate the approach time T1N obtained in an exceptional situation such as when the user runs into the toilet room 105. Note that the method of eliminating such an exceptional approach time T1N is not limited to this specific example.

  When the approach time T1N is within a predetermined ratio range (for example, ± 30%) with respect to the approach time T1 of the adaptation table (YES in S300), the control unit 210 determines that the approach time T1N and the approach time of the adaptation table The average value with T1 is registered in the adaptation table as a new approach time T1 (S310). Note that the new approach time T1 is not limited to the average value of the approach time T1N and the approach time T1 of the original adaptation table, and may be a value obtained by another calculation. For example, the original approach time T1 and approach time T1N may be weighted and averaged based on the actual number of times of approach time T1. Specifically, when the original approach time T1 is an average value of n actual measurement times, since the approach time T1N is one actual measurement value, the control unit 210 (T1 × n + T1N × 1) × ( The result of calculating n + 1) may be used as a new approach time T1. That is, the control unit 210 calculates the average value by setting the weight of the original approach time T1 to n and the weight of the actually measured approach time T1N as 1. At this time, the counter 218 counts the number of measurements of the approach time t1, and sets n to n + 1. When calculating the next new approach time T1, the control unit 210 sets the weight of the approach time T1 of the adaptation table at that time to (n + 1), and sets the weight of the next actually measured approach time T1N to 1. That's fine. The number of measurements of the counter 218 may be reset manually or automatically as necessary.

  On the other hand, when the approach time T1N is not within a predetermined ratio range (for example, ± 30%) with respect to the approach time T1 of the adaptation table (NO in S300), the control unit 210 sets the approach time T1 of the adaptation table. Do not update.

  Next, the controller 210 compares the newly measured seating time T2N with the seating time T2 of the adaptation table (S320). For example, it is determined whether or not the sitting time T2N is within a predetermined range (for example, ± 30%) with respect to the sitting time T2 of the adaptation table. This is also to eliminate the sitting time T2N obtained in an exceptional situation as described above. In addition, the method of eliminating such exceptional seating time T2N is not limited to this specific example.

  When the seating time T2N is within a predetermined ratio range (for example, ± 30%) with respect to the seating time T2 of the adaptation table (YES in S320), the control unit 210 determines that the seating time T2N and the seating time of the adaptation table. The average value with T2 is registered in the adaptation table as a new seating time T2 (S330). The new seating time T2 is not limited to the average value of the seating time T2N and the seating time T2 of the original adaptation table, and may be a value obtained by another calculation. For example, the seating time T2 may be averaged by weighting the original seating time T2 and the seating time T2N based on the actual number of times of the seating time T2 as in the approach time T1.

  On the other hand, when the sitting time T2N is not within a predetermined ratio range (for example, ± 30%) with respect to the sitting time T2 of the adaptive table (NO in S320), the control unit 210 sets the sitting time T2 of the adaptive table. Do not update.

  Thereafter, the control unit 210 executes steps S210 to S230 of FIG. 8 and updates the standby temperature TEMPstb of the adaptation table based on the updated approach time T1 and the updated seating time T2.

  After updating the adaptation table, the actual measurement values of the approach time T1N and the seating time T2N are no longer necessary, and are deleted from the storage unit 214 (S340). Thereafter, the heating toilet seat device 100 performs immediate warming control using the updated adaptation table.

  In the present embodiment, the measurement of the approach time T1N and the seating time T2N is continuously performed, and the adaptation table is updated based on the actually measured values. Thereby, this embodiment can update an adaptation table according to the change of the installation environment of the heating toilet seat apparatus 100. FIG. As a result, even if the environment changes and the balance between the first purpose and the second purpose is lost, the heating toilet seat device 100 updates the adaptation table to achieve the first purpose and the second purpose. Balance can be restored. That is, even if the environment changes, by appropriately updating the standby temperature TEMPstb of the adaptation table, the heating toilet seat device 100 raises the temperature of the toilet seat 140 to the target temperature TEMPtrg when the user is seated, and the heating toilet seat device 100 wasteful power consumption can be omitted.

  For example, when the environment such as the air temperature changes due to the change of seasons, the appropriate standby temperature TEMPstb also changes. Even in such a case, the standby temperature TEMPstb can be appropriately set again by updating the adaptation table based on the actually measured value of the approach time T1N.

  As described above, due to a change in the installation environment, the first purpose may not be achieved, causing the user to feel uncomfortable, or the second purpose may not be achieved, resulting in an increase in power consumption. In the present embodiment, the actual measurement time for update is measured after the change of the installation environment, and the approach time T1 is updated based on the actual measurement time for update.

  Thereby, since the heating toilet seat apparatus 100 can use approach time T1 suitable for the change of installation environment, it can rebalance the 1st objective and the 2nd objective.

[Select from multiple adaptation tables]
In step S220 of FIG. 8, the approach time T1, the sitting time T2, and the total time Ttotal determined in steps S200 and S210 are stored in the storage unit 214 as one adaptation table together with a predetermined determination S / N ratio. . However, the storage unit 214 may store a plurality of adaptation tables corresponding to the installation environment of the heating toilet seat device 100.

  FIG. 11 is a flowchart showing the operation of the heating toilet seat device 100 for setting a plurality of adaptation tables. For example, based on the time zone when the adaptation table is created, the control unit 210 sets a plurality of adaptation tables having different determination S / N ratios. In this case, the timer 216 shown in FIG. 2 has a clock function for measuring the date and time. The storage unit 214 stores a plurality of determination S / N ratios corresponding to a plurality of time zones. For example, in the time zone of the day, the first time zone is from 8 am to 10 pm, and the second time zone is from 10 pm to 8 am. Then, the storage unit 214 stores in advance a first determination S / N ratio corresponding to the first time zone and a second determination S / N ratio corresponding to the second time zone.

  When approach time T1, seating time T2, and / or total time Ttotal is determined in steps S200 and S210, control unit 210 determines whether the determined time is included in the first time zone or the second time zone. Is determined (S500).

  When the determined time such as the approach time T1 is included in the first time zone (YES in S500), the control unit 210 performs the first determination on the determined approach time T1, the sitting time T2, and / or the total time Ttotal. The first adaptive table is stored in the storage unit 214 in combination with the S / N ratio (S510). Thereafter, the heating toilet seat apparatus 100 performs immediate warming control using the first adaptation table.

  On the other hand, when the determined time such as the approach time T1 is included in the second time zone (NO in S500), the control unit 210 determines the determined approach time T1, the sitting time T2, and the total time Ttotal as the second determination. The second adaptive table is stored in the storage unit 214 in combination with the S / N ratio (S520). Thereafter, the heating toilet seat device 100 performs immediate warming control using the second adaptation table.

  For example, since the first time zone is a user activity time zone, the first determination S / N ratio is set high. If the first determination S / N ratio is set to be low during user activity, it is difficult to distinguish between a reflected wave from the user passing through the first detection region DR1 and a reflected wave generated when the door 107 is opened. Therefore, there is a possibility that the radio wave sensor may make a false detection (determining that the door 107 is opened only when the user approaches the door 107). Therefore, in order to suppress the possibility of erroneous detection, the first determination S / N ratio is set to a high value. When the first determination S / N ratio is high, the adaptation table approach time T1 is set short. Therefore, the control unit 210 needs to set the standby temperature TEMPstb to a high value in order to raise the temperature of the toilet seat 140 to the target temperature TEMPtrg when the user is seated. However, on the other hand, the possibility of erroneous detection can be suppressed. Therefore, according to the present embodiment, the heating toilet seat as a whole can be compensated by offsetting the increase in power consumption caused by increasing the standby temperature TEMPstb and the reduction in power consumption caused by reducing the possibility of erroneous detection. The power consumption of 100 can be kept low.

  Conversely, since the second time zone is the user's sleep time zone, the second determination S / N ratio is set lower than the first determination S / N ratio. The user rarely passes through the first detection region DR1 during the sleeping hours. Accordingly, it can be estimated that the possibility of erroneous detection is low, and therefore the second determination S / N ratio may be set to be low. If the second determination S / N ratio is low, the radio wave sensor 160 can detect that the door 107 has been opened earlier, so the approach time T1 of the adaptive table is set to be long. Therefore, the control unit 210 can set the standby temperature TEMPstb low. Thereby, the power consumption of the heating toilet seat apparatus 100 can be reduced.

  When the time zone is changed from the first time zone to the second time zone or from the second time zone to the first time zone after the creation of the first or second adaptation table, the control unit 210 The flow shown in FIG. 8 is executed again, and the other adaptation table that has not yet been created is created. Thereby, both the first and second adaptation tables are created.

  After that, based on the time of the timer 214, the control unit 210 selects the first adaptation table and immediately uses the first adaptation table when the time is included in the first time zone. When the warming control is executed and the time is included in the second time zone, the second adaptation table is selected, and the immediate warming control is executed using the second adaptation table. Thereby, the heating toilet seat apparatus 100 can perform immediate warming control using the some adaptive table which changes with time zones.

  As described above, the heating toilet seat device 100 according to the present embodiment creates a plurality of adaptation tables corresponding to changes in the actual installation environment, and selects an adaptation table corresponding to the environment from the plurality of adaptation tables. Accordingly, the standby temperature TEMPstb is determined so as to correspond to the change in the installation environment of the heating toilet seat device 100, and the overall power consumption can be reduced while achieving the first object.

  In the present embodiment, two different adaptation tables are used, but three or more different adaptation tables may be used. Thereby, the heating toilet seat apparatus 100 can perform immediate warming control using the adaptive table further adapted to environmental changes.

  Further, the target temperature TEMPtrg may be changed for each of the plurality of adaptation tables. In this case, it is conceivable to change the target temperature TEMPtrg for each season. For example, the control unit 210 sets the target temperature TEMPtrg to be relatively low from June to September, and sets the target temperature TEMPtrg to be relatively high from October to May. If the target temperature TEMPtrg is set relatively low, the standby temperature TEMPstb can be set low accordingly. Therefore, the control part 210 can reduce the power consumption of the heating toilet seat apparatus 100 according to the change of the installation environment of the heating toilet seat apparatus 100. FIG.

  As described above, in the present embodiment, the first detection area not only in the toilet room 105 but also outside the toilet room 105 is detected by detecting the opening movement of the door 107 installed at the entrance of the toilet room 105 using the radio wave sensor 160. A user who enters DR1 and attempts to enter the toilet room 105 can be detected indirectly early. For this reason, it becomes possible to take a long time to raise the temperature from the standby temperature TEMPstb to the target temperature TEMPtrg.

  Further, the standby temperature TEMPstb is set based on the approach time T1 from when the sensor unit 150 detects that the door 107 is opened until the user enters the room. That is, the standby temperature TEMPstb is determined as a part of the heating time required for the approach time T1 to raise the toilet seat to the target temperature TEMPtrg. For this reason, even if the standby temperature TEMPstb is lowered, it is possible not only to reliably raise the temperature to a comfortable temperature at the time of sitting, but also to raise the temperature raising capability of the heater 142 as low as possible. Thereby, the heating toilet seat apparatus 100 can improve safety | security and can reduce useless power consumption.

  Furthermore, when the human body outside the toilet room 105 is detected from the toilet room 105 using the radio wave sensor 160, the detection range outside the toilet room 105 is influenced by the passage form of the house and the wall material of the toilet room 105. DR1 may change. However, this embodiment detects that the user who has entered the first detection range DR1 outside the toilet room 105 opens the door 107 with the radio wave sensor, and enters the toilet room from the door opening detection time t0. The standby temperature TEMPstb is determined on the basis of the actually measured approach time T1. For this reason, even if the installation environment of the heating toilet seat device 100 such as a house passage form or a wall material of the toilet room 105 changes, the heating toilet seat device 100 can set the standby temperature TEMPstb according to the installation environment. Therefore, the heating toilet seat apparatus 100 can raise the temperature of the toilet seat 140 to the target temperature TEMPtrg when the user is seated.

  As a result, although a certain amount of estimation is required as described above, the temperature of the toilet seat is raised to an appropriate temperature when the user is seated (first purpose), and the standby temperature TEMPstb is reduced to reduce power consumption. It is possible to set a standby temperature that is adapted as much as possible to the actual installation environment of the heated toilet seat device 100 while making it compatible (second purpose).

The controller 210 starts measuring the approach time T1 from the time when the measured value of the reflected wave of the radio wave exceeds a predetermined threshold value. Since the timing of detecting that the door has been opened varies depending on the threshold (for example, the determination S / N ratio), the approach time T1 can be controlled to some extent.
As a result, the heating toilet seat device 100 can reduce wasteful power consumption while balancing the first and second purposes so as to be adapted to the actual installation environment.

  In the present embodiment, since the approach time T1 is determined based on a plurality of actually measured times, the accuracy of the adaptation table with respect to the installation environment of the heating toilet seat device 100 (degree of adaptation to the environment) is high. Further, by using a plurality of actual measurement times, it is possible to prevent the approach time T1 from being determined based only on sudden or exceptional situations.

  In the present embodiment, the approach time T1 is determined using a plurality of measured times having a small value among a plurality of measured times. Thereby, the control unit 210 can set the standby temperature TEMPstb so as to be suitable for a light-wearing user with a high moving speed. Thereby, the heating toilet seat apparatus 100 can reliably raise the temperature of the toilet seat to the target temperature TEMPstb or more when most users are seated. Also in this case, since the standby temperature TEMPstb is determined based on the actually measured value of the approach time T1, the heating toilet seat device 100 can set the standby temperature TEMPstb according to the installation environment. Accordingly, in the present embodiment, the standby temperature TEMPstb can be reduced as much as possible in consideration of the installation environment while raising the temperature to the target temperature TEMPtrg when the user is seated.

  As a result, wasteful power consumption can be reduced while balancing the first and second objects so as to match the actual installation environment of the heating toilet seat device 100.

  Further, by selecting a plurality of adaptation tables having different determination S / N ratios according to the installation environment of the heating toilet seat device 100, the present embodiment selects an approach time T1 corresponding to the set environment from the plurality of approach times T1. Then, the standby temperature TEMPstb is set based on the selected approach time T1.

  As a result, it is possible to set a plurality of standby temperatures TEMPstb corresponding to changes in the actual installation environment (changes in time zones, changes in seasons, etc.). The heating toilet seat device 100 can select the standby temperature TEMPstb so as to respond to a change in the installation environment, and can raise the temperature to the target temperature TEMPtrg when the user is seated.

(Second Embodiment)
FIG. 12 (A) is a conceptual diagram showing the structure of the heated toilet seat device 100 and the toilet room 105 according to the second embodiment of the present invention and the direction in which the user enters. The configuration of the heated toilet seat device 100 according to the second embodiment may be the same as that of the first embodiment. In the second embodiment, a user or a contractor selects a threshold based on environmental information such as the position of the door 107 of the toilet room 105 and the user's entry direction. The heating toilet seat device 100 executes the flow shown in FIG. 8 using the selected threshold value, and automatically creates an adaptation table. That is, the threshold value is manually selected by the user or the contractor, and the adaptive table is automatically created by the control unit 210 using the reference table.

  In the second embodiment, the position of the door 107 of the toilet room 105 and the approach direction of the user are typically considered as environmental information. However, the environment information may include any of the installation environments of the heating toilet seat device 100 described above. This is because a more accurate adaptation table can be created by considering more environments.

  In the second embodiment, the door 107 is provided on either the front surface (front surface of the heated toilet seat device 100) or the side surface (side surface of the heated toilet seat device 100) of the toilet room 105. When the door 107 is provided in front of the toilet room 105, the user's approach direction is from the front of the toilet room 105 (substantially perpendicular to the front) (environmental information (I)) and the toilet. It can be divided into the case of approaching from the left side of the room 105 (substantially parallel to the front) (environment information (II)). As shown in FIG. 1B, as long as the first detection region DR1 extends symmetrically with respect to the heated toilet seat device 100, the threshold value is set when the user enters from the right side of the toilet room 105 and on the left side. It may be the same when entering from.

  When the door 107 is provided on the side surface of the toilet room 105, when the user approaches from the front of the toilet room 105 in a direction substantially parallel to the side surface of the toilet room 105 (environment information (III)) When approaching from the side of the toilet room 105 (substantially perpendicular to the side surface) (environmental information (IV)), approaching from the back of the toilet room 105 in a direction substantially parallel to the side surface of the toilet room 105 It can be divided into cases (environmental information (V)). In FIG. 12A, a dashed arrow indicates the opening / closing direction of the door 107.

  When the position of the door 107 installed at the entrance / exit of the toilet room 105 is provided on the front surface or on the side surface of the toilet room 105, the change (amplitude) of the reflected wave when the user opens the door 107 Voltage and frequency) and reflected wave changes are different. This relates to the moving angle (position) of the door 107 viewed from the radio wave sensor 160 and the incident angle of the radio wave on the door surface with respect to the traveling (polarization) direction of the radio wave. When the door 107 is provided in front of the toilet room 105, the amplitude voltage obtained from the reflected wave increases almost simultaneously with the door 107 starting to open, and becomes higher than the amplitude voltage obtained from the user's reflected wave. Further, as the door 107 is opened, the amplitude voltage obtained from the reflected wave is reduced, and the distance traveled by the door 107 as viewed from the radio wave sensor 160 is shortened, so that the frequency obtained from the reflected wave is lowered. On the other hand, when the door 107 is provided on the side surface of the toilet room 105, the amplitude voltage obtained from the reflected wave is low when the door 107 starts to open, but the amplitude voltage obtained from the reflected wave increases when the door 107 opens to some extent. However, it becomes higher than the amplitude voltage obtained from the reflected wave of the user.

  For this reason, when the door 107 is provided in front of the toilet room 105 and when the door 107 is provided on the side surface of the toilet room 105, the user can enter the toilet room 105 after opening the door 107. When the approach time T1 is compared, the timing at which the opening of the door 107 is detected by the radio wave sensor is different, and the approach time T1 is longer when the door is provided in front of the toilet room 105.

  The approach time T1 varies depending on the direction in which the user approaches the toilet room 105 and the opening / closing direction of the door 107. For example, when the door 107 is provided in front of the toilet room 105, when the user sees an action pattern in which the user enters the toilet room 105 after opening the door 107, the user approaches from the right side of the toilet room 105 and the toilet When entering the room, the direction of the user's body (walking direction) does not change significantly. On the other hand, when the user approaches from the left side of the toilet room 105 and enters the toilet room, the user rotates the body direction (walking direction) by at least 90 degrees. Therefore, when comparing the movement distance from the movement path when the user approaches from the right side of the toilet room 105 and when the user approaches from the left side of the toilet room 105, the case where the user approaches from the right side of the toilet room 105 is better. The moving distance is short. Thus, the approach time T1 changes because the user's moving distance changes depending on the direction in which the user approaches the toilet room and the door opening / closing direction. When the user approaches from the right side of the toilet room 105, the front of the toilet room 105 is changed. When approaching from the left side of the toilet room 105, approach time T1 becomes longer in the order of approaching.

  The amplitude voltage obtained from the reflected wave generated when the door 107 installed in the toilet room 105 is opened differs depending on the installation position and opening / closing direction of the door 107, the door material, and the like. FIG. 12B is a threshold selection table showing the correspondence between the environmental information (I) to (V) of the heating toilet seat device 100 and the threshold. The threshold selection table is a table composed of a plurality of combinations in which threshold values suitable for various environments and environment information assumed in advance where the toilet seat 140 is actually installed are associated with each other, and stored in the storage unit 214 in advance. Yes. In 2nd Embodiment, the control part 210 selects a threshold value from a threshold value selection table according to the environment where the heating toilet seat apparatus 100 is actually installed, and applies the selected threshold value to the reference | standard table shown in FIG. . Then, the control unit 210 uses the reference table to determine the approach time T1 or the total time Ttotal as described with reference to FIG. 8, and automatically creates an adaptation table. Since the procedure is the same as that of the first embodiment, the description thereof is omitted. Since the reference table is already adapted to the actual environment to some extent, the user can use the heated toilet seat device 100 relatively comfortably even before the creation of the adaptation table shown in FIG.

  [Adaptive table automatic setting], [Adaptive table update], and [Select from a plurality of adaptive tables] may be combined in the second embodiment. Thereby, 2nd Embodiment can acquire the effect similar to 1st Embodiment.

  In the second embodiment, by selecting a threshold value (determination S / N ratio) according to the installation environment of the heating toilet seat device 100, the toilet seat 140 is configured to reduce power consumption in the actual installation environment of the heating toilet seat device 100. When the user is seated, the toilet seat 140 is raised to the target temperature TEMPtrg, and the waste of power consumption can be minimized.

  Further, as described above, a threshold value (determination S / N ratio) is selected based on a time zone during which the user is active or a home time zone and a time zone during which the user is not active or a time zone when the user is out. Then, the approach time T1 can be lengthened, the standby temperature TEMPstb can be set low, and the power consumption can be reduced.

  As a result, the heating toilet seat device 100 can determine the standby temperature TEMPstb so as to reduce the power consumption with respect to the actual change in the installation environment and the use environment while achieving the first object.

(Third embodiment)
FIG. 13 is an approach time selection table showing the correspondence between the environmental information (I) to (V), the threshold value, and the estimated value of the heating toilet seat device 100 according to the third embodiment of the present invention. In the third embodiment, the user or the contractor selects not only the threshold but also the approach time T1 and / or the total time Ttotal based on environmental information such as the position of the door 107 of the toilet room 105 and the user's approach direction. To do. Since the reference table and the adaptation table are selected manually by the user or the contractor, the heating toilet seat device 100 according to the third embodiment does not automatically create the adaptation table, unlike the heating toilet seat device 100 according to the first embodiment. . In FIG. 13, the seating time T2 is fixed to a predetermined time (for example, 5 seconds). Therefore, it may be considered that the selection of the approach time T1 is substantially the same as the selection of the total time Ttotal.

  The configuration of the heated toilet seat device 100 according to the third embodiment may be the same as that of the first embodiment. Moreover, environmental information (I)-(V) respond | corresponds to environmental information (I)-(V) of 2nd Embodiment for convenience. Each environmental information (I) to (V) is as described with reference to FIG. Furthermore, the determination S / N ratio as the threshold is as described with reference to FIG. The approach time selection table further includes a plurality of combinations in which each environment information (I) to (V) is associated with the estimated value of the approach time T1, each environment information (I) to (V) and the estimated seating time T2. A plurality of combinations in which values are associated with each other, a plurality of combinations in which each environment information (I) to (V) is associated with an estimated value of total time Ttotal, and each environment information (I) to (V) and standby A plurality of combinations that correspond to the estimated values of the temperature TEMPstb are stored in the storage unit 214 in advance.

  Accordingly, the user or the contractor selects any one of the environment information (I) to (V) using the function setting unit 132 of the remote operation device 300, so that not only the reference table including the threshold value but also the approach time. An adaptation table including T1, total time Ttotal, and standby temperature TEMPstb is also set.

  In the third embodiment, as in the second embodiment, the position of the door 107 of the toilet room 105 and the user entry direction are typically considered as environmental information. However, the environmental information may include any of the installation environments of the heating toilet seat device 100 described above. This is because a more accurate adaptation table can be created by considering more environments. For example, the form of opening and closing of the door 107, the material of the door 107, the user's age, the user's age and sex, the user's home time zone or absent time zone, the user's sleep time zone and other environmental information, threshold, approach time T1, A plurality of combinations corresponding to the total time Ttotal and the standby temperature TEMPstb are added to the approach time selection table. Thereby, the adaptation table suitable for the installation environment of the heating toilet seat apparatus 100 can be obtained further.

  A specific relationship between environmental information and threshold values will be described. For example, when the door 107 is provided in the front direction of the heating toilet seat apparatus 100 and the user approaches from the front direction of the heating toilet seat apparatus 100, the radio wave sensor 160 causes the movement of the door 107 to open with respect to the movement of the user. It is relatively easy to detect. On the other hand, when the door 107 is provided in the side surface direction of the heating toilet seat device 100 and the user approaches from the front direction of the heating toilet seat device 100, the radio wave sensor 160 moves the door 107 to the movement of the user. It is relatively difficult to detect. Therefore, when the threshold values for the environmental information are compared, it is necessary to set the latter determination S / N ratio smaller than the former and / or set the standby temperature TEMPstb higher.

  In the latter case, by reducing the determination S / N ratio, the opening movement of the door is detected as soon as possible to increase the total time Ttotal. However, the total time Ttotal is relatively short depending on the installation environment of the heating toilet seat device 100. On the other hand, since the standby temperature TEMPstb is set high, the power consumption of the heating toilet seat device 100 increases, but the control unit 210 can raise the temperature of the toilet seat 140 to the target temperature TEMPtrg in a short total time Ttotal. . In this case, an increase in power consumption of the heating toilet seat device 100 is necessary for ensuring user comfort. That is, the adaptation table in the environment information (V) increases the temperature of the toilet seat at the user's seating time to an appropriate temperature (first purpose) and reduces the standby temperature TEMPstb (second purpose). This is obtained as a result of adapting the balance to the actual installation environment of the heated toilet seat device 100.

  When the material of the door 107 is a material having good radio wave permeability such as resin, the radio wave sensor 160 can relatively easily detect the user's movement with respect to the movement of the door 107 opening. On the other hand, when the material of the door 107 is a material with poor radio wave permeability such as metal, the radio wave sensor 160 is relatively difficult to detect the user's movement with respect to the movement of the door 107 opening. Therefore, when the threshold values for the environmental information are compared, it is necessary to set the determination S / N ratio of the former smaller and / or set the standby temperature TEMPstb higher than the latter. However, the adaptation table in this case also has an actual balance between raising the toilet seat at the user's seating time to an appropriate temperature (first purpose) and reducing the standby temperature TEMPstb (second purpose). This is obtained as a result of adapting to the installation environment of the heating toilet seat device 100.

  Moreover, in the user's sleep time zone, the frequency of using the heated toilet seat device 100 is low, and the user rarely approaches the toilet room 105 for purposes other than the purpose of using the heated toilet seat device 100. Therefore, in the user's sleep time zone, the determination S / N ratio can be made smaller and the standby temperature TEMPstb can be set lower than in other time zones.

  Regarding other environmental information, a certain tendency can be estimated between the threshold, the approach time T1, and the standby temperature TEMPstb. By registering these tendencies in the approach time selection table in advance, the heating toilet seat device 100 sets the adaptation table so as to determine the standby temperature so as to reduce the power consumption while achieving the first purpose. can do.

  FIG. 14 is a flowchart showing an adaptation table setting procedure according to the third embodiment. If the environmental information has not yet been selected (NO in S400), the heating toilet seat device 100 performs immediate warming control using a reference table stored in advance in the storage unit 214 (S410). In this case, the control unit 210 reads the reference table from the storage unit 214 and starts the immediate warming control using the reference table. The reference table is as described in the first embodiment.

  When the environmental information is selected based on the environment in which the heating toilet seat device 100 is installed (YES in S400), the control unit 210 sets the threshold value corresponding to the selected environmental information, the approach time T1, the seating time T2, The total time Ttotal and the standby temperature TEMPstb are obtained from the approach time selection table (S420). Next, the control unit 210 creates an adaptation table from the threshold values obtained from the approach time selection table, approach time T1, seating time T2, total time Ttotal, and standby temperature TEMPstb (S430). For example, when the user or the trader selects the environment information (III) from the approach time selection table shown in FIG. 13, the adaptation table has a determination S / N ratio of 1.3, an approach time T1 of 2 seconds, and a seating time T2. The information includes 5 seconds, 7 seconds as the total time Ttotal, and 25 ° C. as the standby temperature TEMPstb. Here, the target temperature TEMPtrg is fixed at 29 ° C. in advance. And the memory | storage part 214 memorize | stores the produced adaptation table (S440), and the control part 210 starts immediate warming control using an adaptation table (S450).

  In the third embodiment, a user or an operator can select the approach time T1 and the standby temperature TEMPstb from the approach time selection table based on the actual installation environment. Thereby, the standby temperature TEMPstb suitable for the installation environment of the heating toilet seat device 100 can be set based on the user's preference or the judgment of the operator. As a result, the heating toilet seat device 100 can determine the standby temperature so as to reduce the power consumption in the installation environment while achieving the first purpose, taking into account the user's preference and the enforcement contractor's judgment.

  Depending on the traveling direction when the user approaches the toilet room 105, the movement information of the human body detection by the radio wave sensor 160 changes, and the approach time T1 changes. Therefore, by setting the approach time T1 and the standby temperature TEMPstb based on the traveling direction, the heating toilet seat device 100 detects the opening of the door earlier by a simple determination method, and achieves the first object. However, the standby temperature can be determined so as to reduce the power consumption in the actual installation environment.

  Further, the approach time T1 also changes depending on the passage form of the house, the wall material of the toilet room, and the like. Therefore, by setting the approach time T1 and the standby temperature TEMPstb based on the installation environment of the heating toilet seat device 100, the heating toilet seat device 100 reduces the power consumption in the actual installation environment while achieving the first object. The standby temperature can be determined as follows.

  Further, the approach time T1 changes depending on the change in the moving speed of the user. Ease of detecting the opening movement of the door by the radio wave sensor 160 due to the difference in the position of the door 107 in the toilet room 105, the difference in the extending direction of the passage leading to the toilet room 105, the difference in the wall material or door material of the toilet room 105. Changes.

  Therefore, by inputting these environmental information and setting the threshold value (determination S / N ratio), approach time T1 and standby temperature TEMPstb, the heating toilet seat device 100 can achieve the first purpose while actually installing it. The standby temperature can be determined to reduce power consumption in the environment.

  Note that the approach time selection table in FIG. 13 includes the standby temperature TEMPstb associated with the environment information. However, the standby temperature TEMPstb may be calculated by calculating the approach time T1 selected and corresponding to the environment information. For example, the storage unit 214 stores an arithmetic expression in which the standby temperature TEMPstb is inversely proportional to the approach time T1, and the arithmetic processing unit 212 calculates the standby temperature TEMPstb by applying the selected approach time T1 to this arithmetic expression. May be.

(Fourth embodiment)
FIG. 15 is a diagram illustrating a first correction table used for correcting the adaptation table. The configuration of the heating toilet seat device 100 may be the same as the configuration of the heating toilet seat device 100 of the first embodiment. The heating toilet seat device 100 determines the standby temperature TEMPstb based on the actually measured value of the approach time T1. Accordingly, the adaptation table shown in FIG. 9 takes into account the installation environment of the actual heating toilet seat device 100 and raises the temperature of the toilet seat to the target temperature TEMPtrg at the user's seating time (first purpose); It is created so that the standby temperature TEMPstb is lowered and power consumption is reduced (second purpose). Therefore, the adaptation table once created may be used for immediate warm control continuously as it is.

  However, actually, if the setting of the adaptation table does not change despite the change in the installation environment of the heating toilet seat device 100, the standby temperature TEMPstb may be set higher than necessary. On the contrary, there is a possibility that the setting of the approach time T1 of the adaptation table is too longer than the actual approach time and the temperature of the toilet seat does not reach the target temperature TEMPtrg when the user is seated. Such a problem occurs because the adaptation table is no longer suitable for the installation environment of the heating toilet seat device 100.

  Therefore, the heating toilet seat device 100 according to the fourth embodiment corrects the adaptive table according to the change in the installation environment of the heating toilet seat device 100, thereby achieving the first object and consuming even in the changed installation environment. Reset standby temperature to reduce power. Accordingly, the heating toilet seat device 100 balances the standby temperature so as to reduce the power consumption while raising the temperature of the toilet seat when the user is seated to the target temperature TEMPtrg (first purpose). Can be kept as low as possible. Here, the target temperature TEMPtrg is described as being fixed to a predetermined value. However, of course, it is possible to change the target temperature TEMPtrg using the target temperature table as shown in FIG. Hereinafter, the adaptive table will be described as control information to be corrected, but a reference table may be used as control information to be corrected instead of the adaptive table.

  Changes in the installation environment of the heating toilet seat device 100 include, for example, changes in the time zone (day and night) of the day, changes in the measured value of the total time Ttotal (or approach time T1) due to changes in the user's age, clothes, etc. These include a difference in opening / closing of the toilet lid, a difference in opening / closing of the door 107, a manual setting change of the standby temperature TEMPstb, a room temperature change of the toilet room 105, and the like. Hereinafter, specific examples will be described in more detail.

[Night correction]
The user usually lives in a certain cycle such as every day or every week. For example, the user is active during the daytime period of the day. The adaptation table is usually created so as to suit the daytime time zone. Since the daytime is estimated to be a time zone in which the user is active, the control unit 210 sets the threshold value (determination S / N ratio) to be relatively high so that the heating toilet seat device 100 is erroneously heated. The frequency of operation can be reduced. On the other hand, when the threshold value is increased, the actual measurement value of the approach time T1 is shortened. Therefore, the control unit 210 increases the standby temperature TEMPstb relatively high in order to raise the temperature of the toilet seat 140 to the target temperature TEMPtrg when the user is seated. Set. Thus, when the standby temperature TEMPstb is high, the power consumption increases.

  On the other hand, it is estimated that nighttime (especially sleep time zone) is a time zone during which the user is not active. Since the user is not active, the control unit 210 can set the threshold value relatively low, and can increase the actual measurement value of the approach time T1. When the measured value of the approach time T1 is long, the control unit 210 can set the standby temperature TEMPstb low.

  Therefore, as shown in FIG. 15, when the clock of the timer 216 is a night time zone (for example, from 10:00 to 8 am), the control unit 210 performs the daytime time zone (for example, 7 am The judgment S / N ratio of the adaptation table adapted to (at 10:00) is reduced by a predetermined ratio (for example, 10%), and the standby temperature TEMPstb is decreased by a predetermined value (for example, 1.5 ° C.). By performing such correction of the adaptation table, the heating toilet seat device 100 performs immediate warming control using an adaptation table adapted to the night time zone in the night time zone.

  Thus, the heating toilet seat device 100 according to the fourth embodiment corrects the determination S / N ratio and the standby temperature TEMPstb according to the life rhythm of the user. The heating toilet seat device 100, for example, corrects the determination S / N ratio to be high during the daytime period to detect that the door 107 is opened reliably, and in order to achieve the first purpose, the standby temperature TEMPstb To raise. On the other hand, in the night time zone, the judgment S / N ratio is corrected to be low, and the approach time T1 is lengthened by detecting that the door 107 opens earlier, and the standby temperature is set so as not to impair the first purpose. Reduce TEMPstb as much as possible. Thereby, the heating toilet seat apparatus 100 can reduce power consumption.

  As described above, the heating toilet seat device 100 according to the fourth embodiment corrects the determination S / N ratio and the standby temperature TEMPstb according to the life rhythm of the user, so that even if the installation usage environment changes according to the time zone, Since the standby temperature TEMPstb can be determined so as to keep power consumption as low as possible, both the first purpose and the second purpose can be achieved.

  In this specific example, the control unit 210 sets an adaptation table adapted to the night time zone by correcting the adaptation table created on the basis of the day time zone. Conversely, the control unit 210 may set an adaptation table adapted to the daytime time zone by creating an adaptation table based on the nighttime zone and correcting the adaptation table. In this case, the controller 210 may increase the determination S / N ratio by a predetermined ratio (for example, 10%) and increase the standby temperature TEMPstb by a predetermined value (for example, 1.5 ° C.).

[Correction based on total time Ttotal]
As described with reference to FIG. 8, the adaptation table is created based on the actual measurement values of the total time Ttotal (the approach time T1 and the seating time T2). However, due to a change in the installation environment of the heating toilet seat device 100, the time from the actual door opening detection time t0 to the seating time t2 may deviate greatly from the total time Ttotal of the adaptation table.

  When the measured value of the total time Ttotal (approach time T1 or seating time T2) is larger than the total time Ttotal (approach time T1 or seating time T2) of the existing adaptation table, the heating toilet seat device 100 is Although the first object can be achieved, the standby temperature TEMPstb can be further reduced.

  For example, the control unit 210 subtracts the total time Ttotal of the adaptation table from the actually measured value of the total time Ttotal. The controller 210 reduces the standby temperature TEMPstb by a predetermined temperature (for example, 1 ° C.) when the subtraction result value is equal to or longer than a predetermined time (for example, 0.5 second). That is, when the actual measurement value of the total time Ttotal is longer than the total time Ttotal of the adaptation table by a predetermined time or more, the control unit 210 determines that the first object can be achieved even if the standby temperature TEMPstb is decreased by the predetermined temperature. . Thereby, the heating toilet seat apparatus 100 can reduce the standby temperature TEMPstb (second objective) and reduce wasteful power consumption while achieving the first objective.

  The above example can be applied not only to the total time Ttotal but also to the approach time T1 or the sitting time T2.

[Correction based on energy saving switch]
The function setting unit 132 shown in FIG. 2 is configured to be able to set the normal mode or the energy saving mode. Alternatively, the remote operation device 300 may further include an energy saving switch 138 that can set the normal mode or the energy saving mode. The normal mode is a mode in which the heating toilet seat device 100 performs immediate warming control based on an existing adaptive table. In the normal mode, the temperature of the toilet seat 140 is raised to the target temperature TEMPtrg or higher when the user is seated, and the standby temperature TEMPstb is set as low as possible. Therefore, the balance between the first purpose and the second purpose Is maintained.

  However, the user may desire to prioritize reduction of power consumption over the first purpose. In such a case, the user switches the energy saving switch 138 and selects the energy saving mode. The energy saving mode is a mode in which reduction of power consumption is given priority according to the user's request.

  When the user selects the energy saving mode, the control unit 210 reduces the determination table S / N ratio by a predetermined ratio (for example, 15%) and waits for the adaptation table as shown in FIG. TEMPstb is decreased by a predetermined value (for example, 2 ° C.). Power consumption can be reduced by lowering the standby temperature TEMPstb of the adaptation table. Further, by reducing the determination S / N ratio, the actual total time Ttotal can be lengthened, and the temperature of the toilet seat 140 when the user is seated can be made as close as possible to the target temperature TEMPtrg.

  Conventional heating toilet seat devices that do not have a radio wave sensor have been able to reduce the standby temperature according to the user's wishes. However, the conventional heating toilet seat device cannot be adjusted to achieve the first object while giving priority to the reduction of power consumption.

  The heating toilet seat device 100 according to the present embodiment is determined so that the balance between the first purpose and the second purpose can be maintained as much as possible while giving priority to the reduction of power consumption in consideration of the user's preference in the energy saving mode. The S / N ratio can be reduced.

  Actually, even if the determination S / N ratio is reduced, the actual total time Ttotal may not be so long depending on the installation environment of the heating toilet seat device 100. In such a case, the temperature of the toilet seat 140 when the user is seated approaches the target temperature TEMPtrg due to the reduction of the determination S / N ratio, but may not reach the target temperature TEMPtrg. However, when the usage frequency of the heated toilet seat device 100 is low, such as when the user is absent or goes to bed, the user may desire the energy saving mode. Therefore, although the case where the 1st objective is not actually achieved may arise, after the heating toilet seat device 100 by this embodiment responds to a user's wish, the 1st objective and the 2nd objective are further made. It is superior to conventional products in that it works to maintain balance as much as possible.

  Further, when the usage frequency of the heating toilet seat device 100 is low, in the energy saving mode, the heating toilet seat device 100 can reduce the standby temperature by giving priority to the reduction of power consumption while achieving the first object.

[Correction based on opening and closing of the toilet lid]
As shown in FIG. 2, the heating toilet seat device 100 further includes a toilet lid 146 that covers the toilet seat 140 or opens the toilet seat 140, and a toilet lid opening / closing sensor 148 that detects whether the toilet lid 146 is open or closed. ing. When the toilet lid 146 is opened, the first detection range DR1 of the radio wave sensor 160 is relatively wide, and the reflected wave from the user outside the toilet room 105 and the reflected wave generated when the door 107 is opened are relatively large. . On the other hand, when the toilet lid 146 is closed, the first detection range DR1 is relatively narrow, and the reflected wave from the user outside the toilet room 105 and the reflected wave generated when the door 107 is opened are relatively small. The toilet lid 146 is not necessarily closed in use. Therefore, it is preferable that the controller 210 changes the threshold value (determination S / N ratio) of the adaptation table when the toilet lid 146 is open and closed.

  The opened state of the toilet lid 146 is a state where the toilet lid 146 does not cover the toilet seat 140. The closed state of the toilet lid 146 is a state where the toilet lid 146 covers the toilet seat 140. The toilet lid opening / closing sensor 148 may be a switch that is electrically turned on / off depending on the opened position and the closed position of the toilet lid 146.

  In this embodiment, the toilet lid opening / closing sensor 148 detects the open / closed state of the toilet lid 146, and the control unit 210 corrects the threshold value of the adaptation table according to the difference in the open / closed state of the toilet lid 146. Thus, by correcting the threshold value of the adaptation table based on the open / closed state of the toilet lid, it is possible to balance the first purpose and the second purpose.

[Correction based on open / close state of door 107]
When the door 107 of the toilet room 105 is open, the user does not need to open the door 107, so the radio wave sensor 160 cannot detect the movement of the door 107. Further, when the user enters the toilet room 105, the total time Ttotal is shortened because there is no operation of opening the door 107.

  When the total time Ttotal is short, there is a possibility that the time for raising the temperature of the toilet seat 140 is not sufficient and the first object is not achieved. Therefore, it is preferable that the control unit 210 corrects the adaptive table when the door 107 is open and closed.

  Usually, the standby temperature TEMPstb of the adaptation table is set on the assumption that the door 107 is in a closed state. When the door 107 is used in the open state and the total time is short, the heating toilet seat device 100 corrects the standby temperature TEMPstb to be higher. Thereby, even if the door 107 is used in the open state, both the first purpose and the second purpose can be achieved.

  In the present embodiment, the control unit 210 corrects the adaptive table according to the difference in the open / closed state of the door 107. Thereby, even if the door 107 is in an open state or a closed state, it is possible to balance the first purpose and the second purpose.

  In addition, the user may manually set any information regarding the installation environment of the heating toilet seat device 100 other than the standby temperature. The user sets information related to the installation environment using the function setting unit 132 or the like. The control unit 210 can correct the threshold value of the adaptation table and / or the standby temperature TEMPstb so as to reduce power consumption while achieving the first object as much as possible according to the installation environment by the user.

[Correction based on room temperature]
The room temperature in the toilet room 105 may change due to a change in the installation environment of the heating toilet seat device 100. For example, the room temperature changes due to seasonal changes. When the room temperature decreases, it is estimated that the actual temperature increase rate standby temperature TEMPstb of the toilet seat decreases. Conversely, when the room temperature rises, it is estimated that the actual temperature increase rate standby temperature TEMPstb of the toilet seat rises.

  In this case, it is preferable that the controller 210 corrects the standby temperature TEMPstb according to the difference between the reference room temperature (for example, 23 ° C.) and the actual room temperature. In order to detect the difference between the reference room temperature and the actual room temperature, the heated toilet seat device 100 further includes a thermometer 400 that measures the room temperature in the toilet room 105. In addition, the storage unit 214 stores in advance a reference room temperature that serves as a reference when creating the adaptation table.

  When the actual room temperature is lower than the reference room temperature, the controller 210 increases the standby temperature TEMPstb of the adaptation table by a predetermined value. For example, every time the actual room temperature decreases by 1 ° C. from the reference room temperature, the control unit 210 increases the standby temperature TEMPstb of the adaptation table by 0.5 ° C. Thereby, the heating toilet seat apparatus 100 can raise the temperature of the toilet seat 140 to the target temperature TEMPtrg when the user is seated.

  Thus, even when the room temperature changes, the heating toilet seat device 100 according to the present embodiment can determine the standby temperature so as to reduce the power consumption while achieving the first object.

[Correction based on user movement speed]
The radio wave sensor 160 can detect the moving (walking) speed of the user as described above. Therefore, the control unit 210 may correct the temperature rise characteristic of the heater 142 based on the moving speed of the user who has entered the toilet room 105. For example, the control unit 210 compares the moving speed of the user with a reference speed. When the moving speed of the user is higher than the reference speed by a predetermined value (for example, 0.5 km / h), the control unit 210 changes the temperature characteristic of the heater 142 on the spot by a predetermined ratio (for example, 10%). Raise. The temperature characteristic of the heater 142 may be proportional to the moving speed of the user. The reference speed is set in advance and stored in the storage unit 214.

  In this correction, the control unit 210 corrects the temperature rise characteristic of the heater 142 on the spot according to the moving speed of the user. Therefore, it is not necessary to change the total time Ttotal and the standby temperature TEMPstb. Thereby, even when the user's moving speed is fast (approach time T1 is short), the heating toilet seat apparatus 100 can achieve the first object without changing the standby temperature TEMPstb. Since the standby temperature TEMPstb is not changed, the power consumption does not increase. Therefore, the heating toilet seat device 100 can determine the standby temperature so as to reduce the power consumption while achieving the first object.

  The correction of the temperature rise characteristic may be performed in place of or together with the correction of the determination S / N ratio and / or the standby temperature TEMPstb. For example, the rise in the temperature rise characteristic can raise the temperature of the toilet seat 140 in a short time. This leads to a decrease in the determination S / N ratio (an increase in approach time T1) or a decrease in the standby temperature TEMPstb. Therefore, in the above-described correction embodiment, the control unit 210 may correct the temperature rise characteristic instead of the determination S / N ratio or the standby temperature TEMPstb or together with these corrections.

  The temperature increase characteristic is the temperature increase capability of the heater 142 and the temperature increase rate of the toilet seat 140. The temperature raising capability of the heater 142 is expressed by the amount of power consumption per unit time (for example, watt hour (Wh)). The rate of temperature increase of the toilet seat 140 is represented by a temperature increase per unit time (for example, ° C./sec). The temperature increase rate of the toilet seat 140 is the inclination of T140 in FIG. The temperature increase characteristic may be monitored by either the temperature increase capability of the heater 142 or the temperature increase rate of the toilet seat 140.

[Correction based on noise amplitude]
When the amplitude of noise of the radio wave sensor 160 shown in FIG. 3 is large, it is difficult to detect that the user outside the toilet room 105 has entered the first detection region DR1 and the door 107 has been opened. Therefore, in this correction, the control unit 210 corrects the width of the determination S / N ratio based on the amplitude of noise of the radio wave sensor 160 (dark noise, a signal from another device in the installation environment). The amplitude of the noise is the voltage amplitude of the reflected wave of the radio wave during a period when no human body is detected. The amplitude of W1 before t0 shown in FIG. 3 is considered as noise.

  For example, the control unit 210 compares the average of the amplitude of noise in unit time with the width of the threshold voltage (± Vth) obtained from the determination S / N ratio. When the amplitude of the noise is equal to or more than half of the threshold voltage width 2 × Vth, the control unit 210 increases the determination S / N ratio of the adaptation table by a predetermined ratio (for example, 10%).

  Thereby, the heating toilet seat apparatus 100 can detect reliably that the door 107 opened. When the determination S / N ratio is increased, it is estimated that the actually measured value of the approach time T1 is shortened. Therefore, it is preferable that the controller 210 increases the standby temperature TEMPstb as the determination S / N ratio increases. Thereby, the heating toilet seat apparatus 100 can determine standby | waiting temperature so that power consumption may be reduced, achieving the 1st objective.

  As described above, the control unit 210 may correct the temperature rise characteristic instead of correcting the standby temperature TEMPstb. Thereby, the heating toilet seat apparatus 100 can achieve the first object without correcting the standby temperature TEMPstb. Since it is not necessary to correct the standby temperature TEMPstb, the heating toilet seat device 100 can determine the standby temperature so as to reduce the power consumption while achieving the first object.

  Moreover, the heating toilet seat apparatus 100 correct | amends an adaptation table according to the change of the installation environment. For example, when the actual standby temperature is lower than the set standby temperature TEMPstb, the control unit corrects the standby temperature TEMPstb to be increased in order to achieve the first object. Conversely, when the actual standby temperature is higher than the set standby temperature TEMPstb, the control unit corrects the standby temperature TEMPstb to be lowered in order to achieve the second object. In this way, the heating toilet seat device corrects the adaptive table according to the change in the installation environment, thereby suppressing the power consumption as low as possible while maintaining the first purpose and the second purpose under the installation environment. Both can be achieved.

  Thus, even if the installation environment changes, the heating toilet seat device 100 according to the present embodiment determines the standby temperature TEMPstb so as to reduce the power consumption as much as possible in the environment, and the toilet seat when the user is seated Can be reliably raised to the target temperature.

DESCRIPTION OF SYMBOLS 100 ... Heating toilet seat apparatus 105 ... Toilet room 107 ... Door 120 ... Toilet bowl 130 ... Remote control device (remote control)
140 ... toilet seat 142 ... heating unit (heater)
144 ... Temperature detection unit 150 ... Sensor unit 160 ... Radio wave sensor 170 ... Pyroelectric sensor 180 ... Seat sensor 200 ... Cleaning unit 210 ... Control unit 212 ... Calculation processing unit 214 ... Storage unit 216 ... Timer 218 ... Counter

Claims (12)

Toilet seat installed in the toilet room,
A heating unit for heating the toilet seat;
A door installed at the entrance of the toilet room where the user enters and exits;
A sensor unit that detects that a user outside the toilet room has opened the door by radio waves, and detects that the user has entered the toilet room;
A control unit for controlling the heating unit and the sensor unit;
A storage unit for storing control information including information used for heating control of the toilet seat;
The control unit performs heating control of the toilet seat based on an approach time from when the sensor unit detects that the user has opened the door to when the user enters the toilet room. ,
The heating toilet seat device, wherein the control information stored in the storage unit is corrected based on the approach time that changes with a change in an environment where the heating toilet seat device is actually installed. The control information includes at least one information of a standby temperature of the toilet seat and heating power of the heating unit,
The control unit corrects the control information so as to raise the temperature of the toilet seat when the user is seated from a standby temperature to a target temperature when the approach time changes due to a change in environment. The heating toilet seat device according to claim 1. The storage unit stores information on a total time from when the sensor unit detects that the user has opened the door to when the user detects that the user is seated on the toilet seat,
3. The control unit according to claim 2, wherein the control unit corrects the control information based on a difference between an actual measurement value of the total time that changes with a change in environment and the total time stored in the storage unit. The heating toilet seat device described. The storage unit stores information on approach time from when the sensor unit detects that the user has opened the door to when the user detects that the user has entered the toilet room,
The control unit corrects the control information based on a difference between an actually measured value of the approach time that changes with a change in environment and the approach time stored in the storage unit. The heating toilet seat device described. The storage unit stores information on the sitting time from the time when the sensor unit detects that the user has entered the toilet room until the time when the user detects that the user is seated on the toilet seat,
3. The control unit according to claim 2, wherein the control unit corrects the control information based on a difference between an actual measurement value of the sitting time that changes with a change in environment and the seating time stored in the storage unit. The heating toilet seat device described. A function setting unit capable of setting usage information regarding the usage state of the heating toilet seat device;
The heating toilet seat device according to claim 2, wherein the control unit corrects the control information based on the use information when the user sets the use information by the function setting unit. The sensor unit detects a moving speed at which the user outside the toilet room enters the toilet room after opening the door.
The heating toilet seat device according to claim 2, wherein the control unit corrects the control information based on the moving speed.
The heating toilet seat device according to claim 2, wherein the control unit corrects the control information based on an open / closed state of the door. A timer having a clock function;
The heating toilet seat device according to claim 2, wherein the control unit corrects the control information based on a time of the timer. The storage unit stores threshold information used by the sensor unit to determine when the user opens the door,
The sensor unit detects noise of radio waves when not detecting a user,
The heating toilet seat device according to claim 2, wherein the control unit corrects the threshold value based on the magnitude of the noise that changes as the environment changes. A toilet lid that covers the toilet seat in a closed state and opens the toilet seat in an open state;
The heating toilet seat device according to claim 10, wherein the control unit corrects the threshold value based on an open / closed state of the toilet lid. It further comprises temperature measuring means for measuring the room temperature in the toilet room,
The storage unit stores in advance information on a reference room temperature that serves as a reference for the control information,
The said control part correct | amends the said control information based on the difference of the room temperature in the said toilet room measured by the said temperature measurement means, and the said reference | standard room temperature stored in the said memory | storage part. The heating toilet seat device according to 1.