JP2021114839A - Wireless power supply system - Google Patents

Abstract

To provide a wireless power supply system that allows a remote control device to be mounted in a position where it can be wirelessly powered.SOLUTION: A wireless power supply system having a toilet device installed in a toilet space and a remote control device that wirelessly receives electric power by radio waves from the toilet device includes an output unit that outputs power reception information, which is information indicating a power reception status of the remote control device.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a wireless power supply system.

Patent Document 1 below discloses a wireless power supply system that supplies power from a toilet device to a remote control device using radio waves.

Japanese Unexamined Patent Publication No. 2010-53536

The builder attaches the remote control device to the wall surface at an arbitrary position. Depending on the position where the remote control device is installed, power may not be supplied from the toilet device to the remote control device.

It is an object of the present disclosure to provide a wireless power supply system capable of mounting a remote control device at a position where wireless power supply can be performed.

One aspect of the present disclosure is a wireless power supply system including a toilet device provided in a toilet space and a remote control device that wirelessly receives power by radio waves from the toilet device, and receives power from the remote control device. It is a wireless power supply system including an output unit that outputs power reception information, which is information indicating the situation.

It is a figure which shows the configuration example of the wireless power supply system of this embodiment. It is a figure which shows the configuration example of the 1st control device and the remote control device of this embodiment. It is a figure which shows the output mode of the output part which concerns on this embodiment. It is a figure which shows the structural example of the control part of the toilet apparatus in this embodiment. It is a figure which shows the toilet space in this embodiment. It is a flow chart of the operation of the wireless power supply system which concerns on this embodiment.

Hereinafter, the wireless power supply system according to the present embodiment will be described with reference to the drawings.

As shown in FIG. 1, the wireless power supply system 1 includes a toilet device 2 and a remote control device 3. The wireless power supply system 1 wirelessly supplies power from the toilet device 2 to the remote control device 3. The wireless power supply of the present embodiment is a method of supplying electric power to the remote control device in a non-contact manner by transmitting radio waves from the toilet device 2 to the remote control device 3. The toilet device 2 includes a toilet bowl 4 and a toilet seat device 5.

The toilet bowl 4 is installed on the floor surface in the toilet space 100. A toilet seat device 5 is installed on the upper part of the toilet bowl 4.

The toilet seat device 5 is installed on the toilet bowl 4 provided in the toilet space 100. The toilet seat device 5 includes a main body cover 6, a toilet seat 7, and a toilet lid 8. However, the toilet seat device 5 does not have to include the toilet lid 8.

The main body cover 6 is placed at the rear of the toilet bowl 4 and above the toilet bowl 4. The main body cover 6 accommodates the first control device 9.

The toilet seat 7 is supported by the main body cover 6. The toilet seat 7 rotates with respect to the main body cover 6. The toilet lid 8 is supported by the main body cover 6. The toilet lid 8 rotates with respect to the main body cover 6.

The first control device 9 has a first antenna 51. The first control device 9 wirelessly supplies power by transmitting radio waves from the first antenna 51 toward the remote control device 3. The first control device 9 wirelessly communicates with the remote control device 3 using radio waves. The radio wave used for wireless power supply may be different from the radio wave used for wireless communication, or may be the same radio wave.

The remote control device 3 receives electric power by wireless power supply from the toilet device 2. The remote control device 3 remotely controls the toilet device 2. The remote control device 3 is installed at a predetermined position in the toilet space 100. This predetermined position is, for example, the wall surface of the toilet space 100. As shown in FIG. 2, the remote control device 3 includes a first operation unit 20, a second operation unit 22, a second control device 23, an output unit 24, and a notification unit 25. When the first operation unit 20 is operated, the remote control device 3 transmits information corresponding to the operation to the first control device 9 using radio waves. When the second operation unit 22 is operated, the remote control device 3 transmits information corresponding to the operation to the first control device 9 using radio waves.

The first operation unit 20 is operated by a person. The first operation unit 20 may include one or more push buttons 21.

The push button 21 is connected to the second control device 23. The push button 21 is in the ON state when it is pressed. The push button 21 is in the off state when it is not pressed. For example, the plurality of push buttons 21 are a first push button 21a, a second push button 21b, a third push button 21c, and a fourth push button 21d.

The first push button 21a is a button that is pressed by the user seated on the toilet seat 7 when the buttocks are washed with washing water. The second push button 21b is a button that the user presses when adjusting the water pressure of the washing water. The third push button 21c is a button that the user presses when generating a sound from the toilet seat device 5. The fourth push button 21d is a button to be pressed when at least one of the washing of the buttocks and the generation of the sound is stopped.

The second operation unit 22 is operated by a person. For example, the second operation unit 22 is operated by the builder when the remote control device 3 is attached to a predetermined position in the toilet space 100. When the second operation unit 22 is operated, the toilet device 2 and the remote control device 3 shift to the construction mode. The position where the second operation unit 22 is provided is not particularly limited. For example, the second operation unit 22 is provided on either the side surface or the back surface of the remote control device 3. The second operation unit 22 may be provided in the toilet device 2 instead of the remote control device 3.

The second control device 23 includes a second antenna 31, a power receiving unit 32, a radio wave intensity detecting unit 33, a power storage unit 34, a charge amount detecting unit 35, a communication unit 36, and a control unit 37.

The second antenna 31 receives the radio wave transmitted from the first antenna 51. When the second antenna 31 receives a radio wave, the second antenna 31 outputs a signal corresponding to the received radio wave to the power receiving unit 32. For example, the second antenna 31 may be a loop antenna or a dipole antenna.

The power receiving unit 32 receives electric power from the toilet device 2 via the second antenna 31. The power receiving unit 32 converts the received power into DC power by rectifying it. For example, the power receiving unit 32 includes a rectifying circuit that generates a DC voltage by rectifying a signal transmitted from the second antenna 31. The power receiving unit 32 outputs the converted DC power to the power storage unit 34.

The radio wave intensity detection unit 33 detects the radio wave intensity Ir, which is the intensity of the radio wave received by the second antenna 31. For example, the radio wave strength detection unit 33 may obtain the radio wave strength Ir by measuring the received power received by the power receiving unit 32, or may obtain the radio wave strength Ir by measuring the DC power converted by the second antenna 31. May be sought. For example, the radio wave intensity detection unit 33 may obtain the radio wave intensity Ir by measuring the voltage of the signal output from the second antenna 31. The radio wave intensity detection unit 33 may obtain the radio wave intensity Ir by measuring the DC voltage generated by the rectifier circuit. The radio wave intensity detection unit 33 obtains the radio wave intensity Ir at regular intervals and outputs the radio wave intensity Ir to the control unit 37. The radio wave intensity detecting unit 33 is not particularly limited as to the method for measuring the radio wave intensity Ir, and any method may be used as long as the radio wave intensity Ir can be measured.

The power storage unit 34 charges the received power received by the power receiving unit 32. The power storage unit 34 is connected to the power receiving unit 32. For example, the power storage unit 34 charges the DC power converted by the power receiving unit 32. For example, the power storage unit 34 is a secondary battery. For example, the power storage unit 34 is a nickel-metal hydride battery or a lithium-ion battery. For example, the power storage unit 34 may be a capacitor.

The charge amount detection unit 35 obtains the charge amount Q charged in the power storage unit 34. For example, the charge amount detection unit 35 obtains the output voltage of the power storage unit 34 as the charge amount Q. However, the charge amount Q is not limited to the output voltage and may be SOC (State Of Charge). The charge amount detection unit 35 outputs the obtained charge amount Q to the control unit 37.

The communication unit 36 wirelessly communicates with the first control device 9 using radio waves. For example, the communication unit 36 wirelessly communicates with the first control device 9 according to any wireless communication standard of Wi-Fi (registered trademark), Bluetooth (registered trademark), and BLE (Bluetooth Low Energy). However, the communication unit 36 only needs to be able to communicate with the first control device 9 using radio waves, and is not particularly limited to the communication standard and the frequency band of the radio waves.

The control unit 37 operates with the electric power charged in the power storage unit 34. The control unit 37 receives information from the first control device 9 via the communication unit 36. When at least one of the plurality of push buttons 21 is turned on, the control unit 37 outputs the identification information corresponding to the pushed buttons 21 in the on state to the communication unit 36. The communication unit 36 wirelessly transmits the identification signal from the control unit 37 to the first control device 9. When the second operation unit 22 is operated, the control unit 37 shifts to the construction mode and outputs construction information, which is information for shifting the toilet device 2 to the construction mode, to the communication unit 36. The communication unit 36 wirelessly transmits the construction information to the first control device 9.

When the control unit 37 acquires the radio wave intensity Ir from the radio wave intensity detection unit 33, the control unit 37 outputs the radio wave intensity Ir to the communication unit 36. The communication unit 36 wirelessly transmits the radio field strength Ir from the control unit 37 to the first control device 9. When the control unit 37 acquires the radio wave intensity Ir from the radio wave intensity detection unit 33, the control unit 37 outputs the radio wave intensity Ir to the output unit 24. The control unit 37 receives detection information from the toilet device 2 which is information on whether or not a person exists in a predetermined area in the toilet space 100. The detection information is the first detection information or the second detection information. The first detection information is information that no person exists in a predetermined area in the toilet space 100. The second detection information is information that a person exists in a predetermined area in the toilet space 100. When the control unit 37 receives the first detection information from the toilet device 2, the control unit 37 may output the radio wave intensity Ir to the output unit 24.

When the control unit 37 acquires the charge amount Q from the charge amount detection unit 35, the control unit 37 may output the charge amount Q to the communication unit 36. The communication unit 36 may wirelessly transmit the charge amount Q from the control unit 37 to the first control device 9.

The output unit 24 outputs power receiving information, which is information indicating the power receiving status of the remote control device 3. The power receiving information includes information on whether or not the remote control device 3 is receiving power by radio waves. For example, the power receiving information may be the radio field strength Ir or the information indicating the level of the radio wave strength Ir. For example, the output unit 24 shifts to the construction mode when the second operation unit 22 is operated. For example, the output unit 24 outputs power receiving information only in the construction mode. The output unit 24 may acquire the radio wave intensity Ir from the control unit 37, or may directly acquire the radio wave intensity Ir from the radio wave intensity detection unit 33. The output unit 24 of this embodiment outputs power receiving information according to the radio wave intensity Ir.

As shown in FIG. 3, the output unit 24 outputs power receiving information in a manner that appeals to at least one of human vision, hearing, and touch.

For example, the output unit 24 may include a display unit. The output unit 24 may display the received power information on the display unit as a mode that appeals to human vision. The display unit displays various types of information. For example, the display unit is either an EPD (Electrophoretic Display) or an LCD (Liquid Crystal Display). The output unit 24 may display the value of the radio wave intensity Ir on the display unit, or may display the radio wave intensity Ir stepwise. Displaying the radio field strength Ir stepwise is to display the level of the radio wave strength Ir. For example, the display unit has a predetermined display area for displaying the radio wave intensity Ir stepwise. The output unit 24 may display the radio wave intensity Ir on the display unit so as to increase the display area of the display area as the radio wave intensity Ir increases.

In the example shown in the first aspect of FIG. 3, the output unit 24 displays the radio field intensity Ir in three stages. For example, the display area has three divided areas, a first divided area 24a, a second divided area 24b, and a third divided area 24c. The heights of the first division region 24a, the second division region 24b, and the third division region 24c are different from each other. The output unit 24 displays a number of divided regions according to the magnitude of the radio wave intensity Ir. The output unit 24 does not display all the divided regions when the radio field intensity Ir is less than the first threshold value. When the radio wave intensity Ir is equal to or higher than the first threshold value and is less than the second threshold value, the output unit 24 determines that the strength of the radio wave intensity Ir is "small" and displays only the first division region 24a. .. When the radio wave intensity Ir is equal to or higher than the second threshold value and is less than the third threshold value, the output unit 24 determines that the strength of the radio wave intensity Ir is "medium", and determines the strength of the radio wave intensity Ir to be "medium", and determines the first division region 24a and the second division. Only the area 24b is displayed on the display unit. The second threshold value is a value that exceeds the first threshold value. The third threshold value is a value that exceeds the second threshold value. When the radio wave strength Ir is equal to or higher than the third threshold value, the output unit 24 determines that the strength of the radio wave strength Ir is "large", and determines that the strength of the radio wave strength Ir is "large", and determines that the strength of the radio wave strength Ir is "large", and the first division region 24a, the second division region 24b, and the third division region 24b. 24c is displayed on the display unit.

For example, the output unit 24 may include a plurality of indicator lights. The output unit 24 may turn on the number of indicator lights according to the power reception information as a mode that appeals to human vision. For example, the indicator light is an LED (light emitting diode). In the example shown in the second aspect of FIG. 3, the output unit 24 includes a first indicator lamp 26a, a second indicator lamp 26b, and a third indicator lamp 26c. When the radio field intensity Ir is less than the first threshold value, the output unit 24 does not turn on any of the indicator lamps of the first indicator lamp 26a, the second indicator lamp 26b, and the third indicator lamp 26c. When the radio wave intensity Ir is equal to or higher than the first threshold value and is less than the second threshold value, the output unit 24 determines that the strength of the radio wave intensity Ir is "small" and turns on the first indicator lamp 26a. When the radio wave intensity Ir is equal to or higher than the second threshold value and is less than the third threshold value, the output unit 24 determines that the strength of the radio wave intensity Ir is "medium", and determines that the strength of the radio wave intensity Ir is "medium", and the first indicator lamp 26a and the second display Turn on the light 26b. When the radio wave intensity Ir is equal to or higher than the third threshold value, the output unit 24 determines that the intensity of the radio wave intensity Ir is "large", and determines that the intensity of the radio wave intensity Ir is "high", and the first indicator lamp 26a, the second indicator lamp 26b, and the third indicator lamp Turn on 26c.

The output unit 24 may change the number of times the indicator light is turned on according to the power reception information as a mode that appeals to human vision. In the example shown in the third aspect of FIG. 3, the output unit 24 turns on the indicator lamp once when it is determined that the intensity of the radio wave intensity Ir is “small”. When the output unit 24 determines that the intensity of the radio wave intensity Ir is "medium", the output unit 24 turns on the indicator lamp twice. When the output unit 24 determines that the strength of the radio wave strength Ir is "large", the output unit 24 turns on the indicator lamp three times.

The output unit 24 may change the brightness of the indicator light according to the power reception information as a mode that appeals to human vision. In the example shown in the fourth aspect of FIG. 3, the output unit 24 turns on the brightness of the indicator lamp at the first brightness when it is determined that the strength of the radio wave intensity Ir is “small”. When the output unit 24 determines that the intensity of the radio wave intensity Ir is "medium", the output unit 24 turns on the brightness of the indicator lamp with a second brightness exceeding the first brightness. When the output unit 24 determines that the intensity of the radio wave intensity Ir is "large", the output unit 24 turns on the brightness of the indicator lamp with a third brightness exceeding the second brightness.

The output unit 24 may change the color of the indicator light according to the power reception information as a mode that appeals to human vision. In the example shown in the fifth aspect of FIG. 3, the output unit 24 turns on the indicator lamp in the first color when it is determined that the intensity of the radio wave intensity Ir is “small”. When the output unit 24 determines that the intensity of the radio wave intensity Ir is "medium", the output unit 24 lights the indicator lamp in a second color different from the first color. When the output unit 24 determines that the intensity of the radio wave intensity Ir is "large", the output unit 24 turns on the indicator lamp in a third color different from the first color and the second color. For example, the first color is red. For example, the second color is yellow. For example, the third color is blue.

For example, the output unit 24 may output the received power information as sound as a mode for appealing to human hearing. The sound may be a voice, an alarm sound including a buzzer, or a warning sound. In the example shown in the sixth aspect of FIG. 3, the output unit 24 includes a voice output device that outputs sound, and as a mode that appeals to human hearing, the number of times of operation, which is the number of times the voice output device is operated, is received information. It may be changed according to. The number of times the audio output device is operated is the number of times the sound is output. The output unit 24 does not output sound when the radio field intensity Ir is less than the first threshold value. When the radio wave intensity Ir is equal to or higher than the first threshold value and is less than the second threshold value, the output unit 24 determines that the strength of the radio wave intensity Ir is "small" and outputs the sound only once. When the radio wave intensity Ir is equal to or higher than the second threshold value and is less than the third threshold value, the output unit 24 determines that the strength of the radio wave intensity Ir is "medium" and outputs the sound only twice. When the radio wave intensity Ir is equal to or higher than the third threshold value, the output unit 24 determines that the radio wave intensity Ir is "high" and outputs the sound only three times.

In the example shown in the seventh aspect of FIG. 3, the output unit 24 may change the volume of the sound output from the voice output device according to the power reception information as a mode that appeals to human hearing. The output unit 24 does not output sound when the radio field intensity Ir is less than the first threshold value. When the output unit 24 determines that the strength of the radio wave strength Ir is "small", the output unit 24 outputs the sound at the first volume. When the output unit 24 determines that the strength of the radio wave intensity Ir is "medium", the output unit 24 outputs the sound at a second volume exceeding the first volume. When the output unit 24 determines that the strength of the radio wave intensity Ir is "large", the output unit 24 outputs the sound at a third volume exceeding the second volume.

In the example shown in the eighth aspect of FIG. 3, the output unit 24 may change the frequency of the output sound according to the received information as a mode that appeals to human hearing. The output unit 24 does not output sound when the radio field intensity Ir is less than the first threshold value. When the output unit 24 determines that the strength of the radio wave intensity Ir is "small", the output unit 24 outputs the sound of the first frequency. When the output unit 24 determines that the strength of the radio wave intensity Ir is "medium", the output unit 24 outputs a sound having a second frequency exceeding the first frequency. When the output unit 24 determines that the strength of the radio wave intensity Ir is "large", the output unit 24 outputs a sound having a third frequency exceeding the second frequency.

For example, the output unit 24 may output the received power information as vibration as a mode for appealing to the human sense of touch. For example, the output unit 24 includes a vibration device. In the example shown in the ninth aspect of FIG. 3, the output unit 24 may change the number of vibrations of the vibrating device according to the power receiving information as a mode for appealing to human hearing. The output unit 24 does not vibrate the vibrating device when the radio wave intensity Ir is less than the first threshold value. When the radio wave intensity Ir is equal to or higher than the first threshold value and is less than the second threshold value, the output unit 24 determines that the strength of the radio wave intensity Ir is "small" and vibrates the vibrating device only once. .. When the radio wave intensity Ir is equal to or higher than the second threshold value and is less than the third threshold value, the output unit 24 determines that the strength of the radio wave intensity Ir is "medium" and vibrates the vibrating device only twice. .. When the radio wave intensity Ir is equal to or higher than the third threshold value, the output unit 24 determines that the intensity of the radio wave intensity Ir is “large” and vibrates the vibrating device only three times.

In the example shown in the tenth aspect of FIG. 3, the output unit 24 may change the intensity of vibrating the vibrating device according to the power receiving information as a mode of appealing to the tactile sensation of a person. The output unit 24 does not vibrate the vibrating device when the radio wave intensity Ir is less than the first threshold value. When the output unit 24 determines that the intensity of the radio wave intensity Ir is "small", the output unit 24 vibrates the vibrating device with the first intensity. When the output unit 24 determines that the intensity of the radio wave intensity Ir is "medium", the output unit 24 vibrates the vibrating device with a second intensity exceeding the first intensity. When the output unit 24 determines that the intensity of the radio wave intensity Ir is "large", the output unit 24 vibrates the vibrating device with a third intensity exceeding the second intensity.

In the example shown in the eleventh aspect of FIG. 3, the output unit 24 may change the frequency of vibration in the vibrating device according to the power receiving information as a mode for appealing to the tactile sensation of a person. The output unit 24 does not vibrate the vibrating device when the radio wave intensity Ir is less than the first threshold value. When the output unit 24 determines that the strength of the radio wave intensity Ir is "small", the output unit 24 vibrates the vibrating device at the first frequency. When the output unit 24 determines that the strength of the radio wave intensity Ir is "medium", the output unit 24 vibrates the vibrating device at a second frequency exceeding the first frequency. When the output unit 24 determines that the strength of the radio wave intensity Ir is "large", the output unit 24 vibrates the vibrating device at a third frequency exceeding the second frequency.

The output unit 24 may output power receiving information when there is no person in a predetermined area in the toilet space 100. In the present embodiment, the toilet device 2 determines whether or not a person exists in a predetermined area in the toilet space 100. The toilet device 2 outputs the detection information, which is the determination result, to the remote control device 3. When the remote control device 3 receives the first detection information from the toilet device 2, the output unit 24 may output the power reception information. For example, the control unit 37 outputs the power receiving information to the output unit 24 when the first detection information is received from the toilet device 2. The output unit 24 outputs the power receiving information acquired from the control unit 37. However, the output unit 24 may receive the first detection information from the toilet device 2 via the communication unit 36. The output unit 24 may output the power reception information based on the radio wave intensity Ir detected by the radio wave intensity detection unit 33 when the first detection information is received.

When it is determined that a person exists in a predetermined area in the toilet space 100, the notification unit 25 executes a notification process for notifying the determination result in a predetermined mode. For example, when it is determined that a person exists in a predetermined area in the toilet space 100, the notification unit 25 executes the notification process in a manner that appeals to at least one of the human sight, hearing, and touch. As an example of the notification process, the notification unit 25 outputs an alarm sound whenever it is determined that a person exists in a predetermined area in the toilet space 100. For example, the notification mode of the notification process and the mode in which the output unit 24 outputs the power reception information are different from each other.

The configuration of the first control device 9 of the present embodiment will be described below. The first control device 9 includes a power conversion unit 10, a human body detection sensor 11, a communication unit 12, a control unit 13, and a power supply unit 14.

The power conversion unit 10 is supplied with power from the AC adapter 200 connected to the outlet in the toilet space 100. The power conversion unit 10 converts the power from the AC adapter 200 into a predetermined power. The power conversion unit 10 supplies the converted power to each of the human body detection sensor 11, the communication unit 12, the control unit 13, and the power supply unit 14. For example, the power conversion unit 10 is an AC-DC converter. The power conversion unit 10 may further include a DC-DC converter that steps down the output of the AC-DC converter.

The human body detection sensor 11 detects whether or not a person exists in the first region 101, which is a predetermined region in the toilet space 100. The first area 101 is a predetermined area in front of the toilet device 2 in the toilet space 100. The front is the front direction when viewed from the user sitting on the toilet seat 7. The human body detection sensor 11 detects a person who exists at a position far forward from the toilet seat 7. The human body detection sensor 11 can detect a person who has entered the toilet space 100. For example, the human body detection sensor 11 is any of a pyroelectric sensor, an ultrasonic sensor, and a distance measuring sensor. The human body detection sensor 11 is connected to the control unit 13. The human body detection sensor 11 outputs a detection result of whether or not a person exists in the first region 101 to the control unit 13. For example, when the human body detection sensor 11 detects the presence of a person in the first region 101, the human body detection sensor 11 outputs the first detection signal to the control unit 13. For example, when the human body detection sensor 11 does not detect the presence of a person in the first region 101, the human body detection sensor 11 outputs a second detection signal to the control unit 13. However, the present invention is not limited to this, and the human body detection sensor 11 may output a predetermined signal to the control unit 13 only when the presence of a person in the first region 101 is detected.

The human body detection sensor 11 may be provided in the toilet space 100, and may not be provided in the toilet device 2.

The communication unit 12 wirelessly communicates with the communication unit 36 using radio waves. The communication unit 12 communicates with the same wireless communication standard as the communication unit 36. For example, the communication unit 12 wirelessly communicates with the communication unit 36 using any of the wireless communication standards of Wi-Fi, Bluetooth, and BLE.

The control unit 13 is electrically connected to the communication unit 12. The control unit 13 transmits information to the communication unit 12. The control unit 13 receives information from the remote control device 3 via the communication unit 12.

The control unit 13 controls the wireless power supply from the toilet device 2 to the remote control device 3. The control unit 13 determines whether or not a person exists in a predetermined area in the toilet space 100. The control unit 13 transmits the determination result to the remote control device 3. When the control unit 13 receives the construction information from the remote control device 3, the control unit 13 may determine whether or not a person exists in a predetermined area in the toilet space 100.

As shown in FIG. 4, the control unit 13 includes a first determination unit 40, a second determination unit 41, and a third determination unit 42.

The first determination unit 40 determines whether or not a person exists in the first region 101 based on the detection result of the human body detection sensor 11. For example, the first determination unit 40 determines that a person exists in the first region 101 when the first detection signal is received from the human body detection sensor 11. For example, when the first determination unit 40 receives the second detection signal from the human body detection sensor 11, it determines that there is no person in the first region 101. For example, the first determination unit 40 may determine that a person exists in the first region 101 when the predetermined signal is received from the human body detection sensor 11. When the first determination unit 40 determines that a person exists in the first region 101, the first determination unit 40 outputs the first information, which is information indicating the determination result, to the third determination unit 42.

The second determination unit 41 determines whether or not a person exists in the second area 102 including the area that cannot be detected by the human body detection sensor 11 provided in the toilet space 100, and the radio wave of wireless power supply and the radio wave used for communication. Judgment is based on fluctuations in at least one of the radio waves. The radio wave of wireless power supply is a radio wave strength Ir. The radio wave used for communication may be at least one of the radio wave strength received by the communication unit 36 from the communication unit 12 by wireless communication and the radio wave strength received by the communication unit 12 from the communication unit 36 by wireless communication. ..

As shown in FIG. 5, the second region 102 may have a region that cannot be detected by the human body detection sensor 11. The second area 102 may be a space inside the toilet space 100 or a space outside the toilet space 100. The second area 102 may be a space including both a space inside the toilet space 100 and a space outside the toilet space 100. For example, the second region 102 has a region that does not overlap with at least a part of the first region 101. For example, the second region 102 may be a region that does not overlap with the first region 101. For example, the second area 102 has a specific area on the side where the remote control device 3 is arranged when viewed from the user sitting on the toilet seat 7 in the toilet space 100. The specific area is an area between the toilet device 2 and the remote control device 3, and is an area in which the presence of a person cannot be detected by the human body detection sensor 11. In the present embodiment, the second region 102 is a region having a path through which radio waves propagate between the toilet device 2 and the remote control device 3. The second region 102 has an region in the toilet space 100 in which the presence of a person cannot be detected by the human body detection sensor 11.

The second determination unit 41 of the present embodiment determines whether or not a person exists in the second region 102 according to the radio wave intensity Ir. The second determination unit 41 determines whether or not the radio wave intensity Ir has changed at regular intervals. For example, the second determination unit 41 may determine that the radio wave intensity Ir has changed when the rate of change of the radio wave intensity Ir exceeds the change rate threshold value which is a predetermined threshold value.

The second determination unit 41 may determine that the radio wave intensity Ir has changed when the rate of change of the calculated value of the radio wave intensity Ir exceeds the change rate threshold value which is a predetermined threshold value. The calculated value may be an average value of a plurality of radio field intensities Ir, a standard deviation, or a dispersion value. The second determination unit 41 may determine that the radio wave intensity Ir has fluctuated when at least one of the radio wave intensity Ir and the calculated value is less than the first radio wave intensity threshold value which is a predetermined threshold value. When the second determination unit 41 determines that the radio wave intensity Ir has fluctuated, it determines that a person exists in the second region 102 according to the radio wave intensity Ir. When the second determination unit 41 determines that the radio wave intensity Ir has fluctuated, the second determination unit 41 outputs the second information, which is information indicating the determination result, to the third determination unit 42. The second determination unit 41 may stop the output of the second information when at least one of the radio wave intensity Ir and the calculated value is equal to or higher than the second radio wave threshold value which is a predetermined threshold value. The second radio wave threshold value may be the same value as the first radio wave threshold value, or may be a value higher than the first radio wave threshold value. The second determination unit 41 may determine that the radio wave intensity Ir has changed when at least one of the radio wave intensity Ir and the calculated value exceeds the third radio wave threshold value, which is a predetermined threshold value.

The third determination unit 42 determines whether or not a person exists in a predetermined area in the toilet space 100. At least one of a case where the first determination unit 40 determines that a person exists in the first area 101 and a case where the second determination unit 41 determines that a person exists in the second area 102. In this case, it is determined that a person exists in a predetermined area in the toilet space 100. For example, when the third determination unit 42 acquires at least one of the first information and the second information, the third determination unit 42 determines that a person exists in a predetermined area in the toilet space 100.

The third area 103 is an area other than the first area 101 and the second area 102 in the toilet space 100. When there is a person in the third area 103, the first determination unit 40 determines that there is no person in the first area 101. When there is a person in the third area 103, the second determination unit 41 determines that there is no person in the second area 102. As a result, when there is a person in the third area 103, the third determination unit 42 determines that there is no person in the predetermined area in the toilet space 100. The third determination unit 42 outputs detection information, which is information indicating a determination result of whether or not a person exists in the toilet space 100, to the remote control device 3 via the communication unit 12. For example, when the third determination unit 42 determines that no person exists in the predetermined area in the toilet space 100, the third determination unit 42 outputs the first detection information to the remote control device 3 via the communication unit 12. When the third determination unit 42 determines that a person exists in a predetermined area in the toilet space 100, the third determination unit 42 outputs the second detection information to the remote control device 3 via the communication unit 12.

The power supply unit 14 operates by acquiring electric power from the power conversion unit 10. The power feeding unit 14 wirelessly supplies power to the remote control device 3 by transmitting radio waves to the remote control device 3. The radio wave transmitted by the power feeding unit 14 to the remote control device 3 may be, for example, 920 MHz or a microwave.

The power feeding unit 14 includes a power transmission unit 50 and a first antenna 51.

The power transmission unit 50 is electrically connected to the first antenna 51. The power transmission unit 50 has a transmitter that generates a transmission signal that is a signal of a predetermined frequency. The power feeding unit 14 may amplify the transmission signal. The power transmission unit 50 may adjust the amplification factor of the transmission signal based on either the first control signal or the second control signal. For example, when the power transmission unit 50 receives the first control signal, the power transmission unit 50 may amplify the transmission signal at the first amplification factor. When the power transmission unit 50 receives the second control signal, the power transmission unit 50 may amplify the transmission signal with a second amplification factor lower than the first amplification factor. The power transmission unit 50 may adjust the phase of the transmission signal. When the power transmission unit 50 receives the control signal of either the first control signal or the second control signal, the power transmission unit 50 outputs a transmission signal whose amplification factor and phase are adjusted to the first antenna 51. When the power transmission unit 50 receives the third control signal, the power transmission unit 50 stops the output of the transmission signal to the first antenna 51.

The first antenna 51 transmits radio waves to the remote control device 3 by transmitting a transmission signal from the power transmission unit 50. In the case of the first wireless power supply, the first antenna 51 transmits the first radio wave toward the remote control device 3. In the case of the second wireless power supply, the first antenna 51 transmits the second radio wave toward the remote control device 3. For example, the first antenna 51 is a loop antenna. The first antenna 51 may be an array antenna having a plurality of antenna elements. The first antenna 51 is provided in the main body cover 6 on the side where the remote control device 3 is arranged as seen from the user sitting on the toilet seat 7. For example, when the remote control device 3 is arranged on the wall surface on the right side of the toilet device 2, the first antenna 51 is provided at least in a specific area on the right side when viewed from the user sitting on the toilet seat 7. .. For example, when the remote control device 3 is arranged on the left wall surface of the toilet device 2, the first antenna 51 is provided at least in a specific area on the left side when viewed from the user sitting on the toilet seat 7. .. The specific area on the right side may be inside the main body cover 6 on the right side with the center line 300 as a reference when the toilet space 100 is viewed from a plane. The specific area on the left side may be inside the main body cover 6 on the left side with the center line 300 as a reference when the toilet space 100 is viewed from a plane.

Hereinafter, an example of the operation flow of the wireless power feeding system 1 will be described with reference to FIG.

When the second operation unit 22 is operated, the remote control device 3 shifts to the construction mode. When the remote control device 3 shifts to the construction mode, the remote control device 3 transmits construction information to the toilet device 2 using radio waves. When the toilet device 2 receives the construction information from the remote control device 3, the toilet device 2 shifts to the construction mode (step S101). When the toilet device 2 shifts to the construction mode, it determines whether or not a person exists in a predetermined area in the toilet space 100 (step S102). For example, when the human body detection sensor 11 detects a human body, the third determination unit 42 determines that a person exists in a predetermined area in the toilet space 100. When the second determination unit 41 determines that a person exists in the second area 102, the third determination unit 42 may determine that a person exists in a predetermined area in the toilet space 100.

The third determination unit 42 transmits the first detection information to the remote control device 3 when it is determined that no person exists in the predetermined area in the toilet space 100. The third determination unit 42 transmits the second detection information to the remote control device 3 when it is determined that a person exists in a predetermined area in the toilet space 100. When the remote control device 3 receives the second detection information from the toilet device 2, the remote control device 3 executes the notification process by the notification unit 25 (step S103). For example, when the control unit 37 receives the second detection information, the control unit 37 outputs a signal to the notification unit 25. For example, the notification unit 25 outputs an alarm sound when receiving a signal from the control unit 37.

When the control unit 37 receives the first detection information from the toilet device 2, the control unit 37 holds the current radio wave intensity Ir detected by the radio wave intensity detection unit 33 (step S104). The control unit 37 outputs the held radio field strength Ir to the output unit 24. The output unit 24 outputs the power receiving information according to the radio wave intensity Ir in a predetermined mode (step S105).

The control unit 37 determines whether or not the reset operation has been performed (step S106). The reset operation is a process of resetting the radio field intensity Ir held by the control unit 37 in step S105. As an example, the reset operation is an operation on the first operation unit 20 in the construction mode. For example, the reset operation is an operation in which at least one of the plurality of push buttons 21 is pressed.

When the control unit 37 determines that the reset operation has been performed, the control unit 37 resets the held radio wave intensity Ir (step S107). When it is determined that the reset operation has not been performed, the control unit 37 determines whether or not the release operation, which is an operation for canceling the construction mode, has been performed (step S108). For example, the control unit 37 determines that the construction mode release operation has been performed when the second operation unit 22 is operated in the construction mode. When the control unit 37 determines that the construction mode release operation has not been performed, the control unit 37 shifts to the process of step S105. When the control unit 37 determines that the construction mode release operation has been performed, the control unit 37 releases the construction mode (step S109). When it is determined that the construction mode release operation has been performed, the control unit 37 outputs the construction release information, which is information for canceling the construction mode, to the communication unit 36. The communication unit 36 wirelessly transmits the construction release information to the first control device 9. When the toilet device 2 receives the construction cancellation information, the toilet device 2 cancels the construction mode.

Next, a construction method in which the installer constructs the remote control device 3 on the wall surface in the toilet space 100 will be described. The builder attaches the remote control device 3 to an arbitrary position on the wall surface in the toilet space 100 (first step). When the builder attaches the remote control device 3 to an arbitrary position in the first step, the builder operates the second operation unit 22 to shift the wireless power supply system 1 to the construction mode (second step). Immediately after the builder operates the second operation unit 22, there is a high possibility that the builder is present in at least one of the first region 101 and the second region 102. Therefore, when the builder is present in at least one of the first area 101 and the second area 102, the notification unit 25 outputs an alarm sound. The builder moves to the third area 103, which is the area where the alarm sound is not output, in the toilet space 100 (third step). When the builder moves to the third area 103, the notification unit 25 stops the output of the alarm sound. When the builder moves to the third area 103, the output unit 24 outputs the power receiving information which is the information indicating the power receiving status of the remote control device 3.

The builder confirms the power receiving information output by the output unit 24 (fourth step). By confirming the power receiving information, the builder can confirm whether or not a sufficient amount of electric power is supplied from the toilet device 2 to the remote control device 3. When the builder can confirm that a sufficient amount of electric power is supplied from the toilet device 2 to the remote control device 3, the builder performs a release operation to release the construction mode (fifth step).

When the builder confirms that a sufficient amount of electric power is not supplied from the toilet device 2 to the remote control device 3, the installer changes the mounting position of the remote control device 3 (sixth step). The builder performs a reset operation when the mounting position of the remote control device 3 is changed (7th step). When the reset operation is performed, the builder moves to the third area 103 again and confirms the power receiving information. The builder repeats the third step, the fourth step, the sixth step, and the seventh step until it can be confirmed that a sufficient amount of electric power is supplied from the toilet device 2 to the remote control device 3.

The output unit 24 outputs power receiving information, which is information indicating the power receiving status of the remote control device 3. With this configuration, the builder can grasp whether or not power is being supplied from the toilet device 2 to the remote control device 3 by checking the power receiving information. As a result, the builder can attach the remote control device 3 to a position where wireless power supply can be performed.

The power receiving information may include information on the radio wave intensity level of the radio wave received by the remote control device 3. With this configuration, the builder can easily grasp whether or not power is being supplied from the toilet device 2 to the remote control device 3.

The wireless power supply system 1 may include a third determination unit 42 for determining whether or not a person exists in a predetermined area of the toilet space 100. The output unit 24 may output power receiving information when it is determined by the third determination unit 42 that no person exists in the predetermined area. With this configuration, the wireless power supply system 1 can eliminate the influence of the builder and the user when outputting the power receiving information.

The wireless power supply system 1 may further include a third operation unit provided in either the toilet device 2 or the remote control device 3. The output unit 24 may output power receiving information when it is determined by the third determination unit 42 that no person exists in the predetermined area after the third operation unit is operated. With this configuration, the wireless power supply system 1 can shift to the construction mode for constructing the remote control device 3 when the third operation unit is operated. The wireless power supply system 1 can output power reception information only in a construction mode different from the normal mode. The third operation unit may be any operation unit that shifts to the construction mode. For example, the third operation unit is at least one of the first operation unit 20 and the second operation unit 22. For example, when the third operation unit is the second operation unit 22, it is necessary to newly provide an operation unit for shifting the wireless power supply system 1 to the construction mode in either the toilet device 2 or the remote control device 3. .. The first operation unit 20 is an existing operation unit in the remote control device 3. When the third operation unit is the first operation unit 20, it is not necessary to newly provide an operation unit for shifting the wireless power feeding system 1 to the construction mode.

When the third determination unit 42 determines that a person exists in a predetermined area, the wireless power supply system 1 may include a notification unit 25 that notifies the determination result. With this configuration, the wireless power supply system 1 can eliminate the influence of the builder and the user when outputting the power receiving information.

The notification unit 25 may be provided in the toilet device 2 instead of the remote control device 3. The notification unit 25 may be provided in a communication device owned by a person. The communication device possessed by a person is, for example, a mobile information terminal. For example, a mobile information terminal is a smartphone or tablet terminal.

The third determination unit 42 may be provided in the remote control device 3 instead of the toilet device 2. The first determination unit 40, the second determination unit 41, and the third determination unit 42 may be provided in the remote control device 3 instead of the toilet device 2. For example, the output unit 24 may have at least the function of the third determination unit 42 among the first determination unit 40, the second determination unit 41, and the third determination unit 42. When the third determination unit 42 is provided in the remote control device 3, the remote control device 3 may acquire the detection result of the human body detection sensor 11 from the toilet device 2.

The output unit 24 may be provided in the toilet device 2. The output unit 24 may be provided in the communication device possessed by a person.

The control unit 37 may operate with the DC power output from the power receiving unit 32. For example, when the remote control device 3 is not provided with the power storage unit 34, the control unit 37 operates with the DC power output from the power receiving unit 32. For example, when the remote control device 3 is wirelessly fed, the power storage unit 34 may be charged and the control unit 37 may be operated by the DC power output from the received power. The remote control device 3 may operate the control unit 37 with the electric power charged in the power storage unit 34 when the power is not supplied wirelessly.

The power receiving information may be either the first power receiving information or the second power receiving information. The first power receiving information is information indicating that a sufficient amount of electric power is supplied from the toilet device 2 to the remote control device 3. For example, the first power receiving information is "OK". The second power receiving information is information indicating that a sufficient amount of electric power is not supplied from the toilet device 2 to the remote control device 3. The second power receiving information also includes the fact that power is not supplied from the toilet device 2 to the remote control device 3. For example, the second power receiving information is "NG". For example, the output unit 24 outputs the first power receiving information to the display unit when the radio wave intensity Ir is equal to or higher than a predetermined value. For example, the output unit 24 outputs the second power receiving information to the display unit when the radio wave intensity Ir is less than a predetermined value.

The operation of shifting to the construction mode does not have to be the operation of the second operation unit 22. For example, the operation of shifting to the construction mode may be a predetermined operation for the first operation unit 20. For example, the operation of shifting to the construction mode may be an operation other than the operation of pressing one push button 21 among the plurality of push buttons 21. For example, the operation of shifting to the construction mode may be an operation of simultaneously pressing two or more push buttons 21 among the plurality of push buttons 21. For example, the operation of shifting to the construction mode may be an operation of pressing and holding one or more push buttons 21 among the plurality of push buttons 21. For example, the operation of shifting to the construction mode may be an operation of pressing two or more push buttons 21 among the plurality of push buttons 21 in a preset order and number of times. As an example, the operation of shifting to the construction mode is an operation of pressing the push button 21 in the order of the first push button 21a, the second push button 21b, and the third push button 21c. As an example, the operation of shifting to the construction mode is an operation of pressing the push button 21 in the order of the first push button 21a, the second push button 21b, the second push button 21b, and the second push button 21b. For example, the operation of shifting to the construction mode is an operation of pressing one or more push buttons 21 a plurality of times within a specified time. The release operation does not have to be the operation of the second operation unit 22. For example, the release operation may be an operation different from the reset operation. The release operation may be the same as the operation for shifting to the construction mode.

The output unit 24 may output power receiving information even if it is not in the construction mode. For example, the output unit 24 may output power receiving information while the user is sitting on the toilet seat 7. The user can grasp the power receiving status of the remote control device 3.

For example, the control unit 37 includes a processor. For example, the processor is a CPU (Central Processing Unit) and an MPU (Micro Processing Unit). For example, the control unit 13 may be a microcontroller. The control unit 37 may include at least one of a non-volatile semiconductor and a volatile semiconductor. The control unit 37 may be realized by the processor executing the program. At least a part of the components of the control unit 37 may be realized by hardware, or may be realized by collaboration between software and hardware.

For example, the hardware is at least one of LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), and GPU (Graphics Processing Unit). The above program may be stored in the storage device in advance. The storage device is a non-transient storage medium. For example, the storage device is at least one of an HDD (Hard Disk Drive) and a flash memory. The program may be stored in a removable storage medium. In this case, the program may be installed in the storage device by mounting the storage medium in the drive device. The storage medium is a non-transient storage medium. For example, the recording medium is either a DVD or a CD-ROM.

1 ... wireless power supply system, 2 ... toilet device, 3 ... remote control device, 22 ... second operation unit, 24 ... output unit, 25 ... notification unit

Claims (6)

A wireless power supply system including a toilet device provided in a toilet space and a remote control device that wirelessly receives electric power by radio waves from the toilet device.
An output unit that outputs power reception information, which is information indicating the power reception status of the remote control device.
Wireless power supply system with. The power receiving information includes information indicating the level of radio wave intensity of the radio wave received by the remote control device.
The wireless power supply system according to claim 1. A determination unit for determining whether or not a person exists in a predetermined area of the toilet space is provided.
When the determination unit determines that no person exists in the predetermined area, the output unit outputs the power reception information.
The wireless power supply system according to claim 1 or 2. An operation unit provided in either the toilet device or the remote control device is further provided.
The output unit outputs the power receiving information when it is determined by the determination unit that no person exists in the predetermined area after the operation unit is operated.
The wireless power supply system according to claim 3. When the determination unit determines that a person exists in the predetermined area, the notification unit that notifies the determination result,
The wireless power supply system according to claim 3 or 4. The output unit outputs the power receiving information in a manner that appeals to at least one of human vision, hearing, and touch.
The wireless power supply system according to any one of claims 1 to 5.

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