JP2009059488A - Switch position detecting device, remote controller using it, and warm-water wash toilet seat device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switch position detection device of electric equipment in which consumption current is suppressed and the number of microcomputer is reduced by simplification of a detection circuit structure. <P>SOLUTION: The switch position detection device is provided with a plurality of switches 47, 48 and a control means 42 which has a microcomputer 43 of which ports are connected to the plurality of the switches and detects the operating positions of the respective switches. The control means 42 has ports installed respectively for the number of the switches only on the input side and the number of poles of the switches only on the output side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a switch position detecting device for a device that detects a button operated position (on, off, strong, medium, weak, etc.) of a switch used by the device, a battery-operated remote control device using the device, and a remote control device using the switch position detecting device. The present invention relates to a warm water washing toilet seat device using an operation device.

  Conventionally, when detecting a plurality of button-operated positions of a single-circuit two-contact slide switch, a microcomputer (hereinafter referred to as a microcomputer) has one port at each contact by the switch position detection circuit configuration shown in FIG. Port was assigned.

  That is, the switch position detecting device shown in FIG. 7 has a slide piece 11a that moves as shown in the arrow by the button operation of the slide switches 1a and 1b when using two slide switches 1a and 1b of one circuit and two contact type. The microcomputer 3 that detects the position of turning on and off 11b makes the determination as follows. Since the determination is the same for both switches, the process will be described for one switch together with the detection flowchart shown in FIG.

  That is, the initial state is determined. The polarity terminals 2a and 2b on the common side between the on and off terminals of the slide switches 1a and 1b are connected to the microcomputer ports 1 and 4, respectively, and the ports are set as input terminals (FIG. 8 shows only the slide switch 1a). ).

  Also, the polarity terminals 21a and 22a between the other on / off terminals of the slide switch 1a are respectively connected to the microcomputer ports 2 and 3, and the polarity terminals between the other on / off terminals of the slide switch 1b. 21b and 22b are also connected to the microcomputer ports 5 and 6, respectively, and set to CMOS output terminals 3a and 3b that can output high (hereinafter referred to as H) and low (hereinafter referred to as L) (FIG. 8 shows only the slide switch 1a). Show).

  When the microcomputer 3 is turned on, the slide switch 1a first determines the position of each slide switch 1a, 1b so that the output terminal, which is the polarity terminal 22a between the incoming terminals connected to the microcomputer port 2, is provided. The output terminal which is the polarity terminal 21a between the cut terminals connected to the microcomputer port 3 is set to H output. At that time, if the input terminal connected to the microcomputer port 1 is L, the slide switch 1a is connected between the cut-off terminals, and if it is H, the switch-on terminals are not connected.

  Further, the output terminal which is the polarity terminal 22a connected to the microcomputer port 2 of the slide switch 1a is output H, and the output terminal which is the polarity terminal 21a connected to the microcomputer port 3 is output L.

  When the input terminal connected to the microcomputer port 1 is L, the slide switch 1a is connected between the cut-off terminals of the slide switch 1a, and when it is H, the switch-on terminals are not connected. Thus, after the switch position determination process, the connected microcomputer output port is set to H output, and the unconnected microcomputer output port is set to L output. This suppresses standby current.

In the same manner as the detection flow described above, the slide switch 1b outputs the output terminal, which is the polarity terminal 22b connected to the microcomputer port 5, to L output, and outputs the output terminal, which is the polarity terminal 21b connected to the microcomputer port 6, to H output. . At that time, if the input terminal connected to the microcomputer port 4 is L output, the slide switch 1b is connected between the switch terminals.
If the output is H, the switch input terminals are not connected.

  Further, the slide switch 1 b outputs H as an output terminal, which is a polarity terminal 22 b connected to the microcomputer port 5, and outputs L as an output terminal, which is a polarity terminal 21 b connected to the microcomputer port 6.

  When the input terminal connected to the microcomputer port 4 is L, the slide switch 1b is connected between the cut-off terminals of the slide switch 1b, and when it is H, the switch-on terminals are not connected. Thus, after the switch position determination process, the connected microcomputer output port is set to H output, and the unconnected microcomputer output port is set to L output.

  After that, when the position of each slide switch is changed by the user's operation, the level of the input terminal of the changed slide switch is changed from H input to L input, so that it is determined that the operation position has been changed. After the determination process, the connected microcomputer output port is set to H output, and the unconnected one is set to L output. As a result, standby current can be suppressed.

  Further, as a technique for reducing the number of ports (number of pins) of the microcomputer and detecting the state (operation position) of the switch, there is a state determination device (for example, see Patent Document 1) in the warm water washing toilet seat device shown in FIG. Are known.

  That is, the state determination device in this warm water washing toilet seat device is configured to determine whether or not a seating state determination switch SW1 that detects whether or not a user is seated on the toilet seat and a tank that stores hot water for washing a local part of the human body is full. FIG. 9 shows resistors R4, R5, R6, and capacitors C2, C3, C4 in order to discriminate the four states when these two switches are ON and OFF. Is connected to the A / D port of the microcomputer 3 for determining the four states.

The microcomputer 3 takes in four different voltage values generated by the voltage generation circuit according to the four states when the two switches are ON and OFF as input voltages, and determines the position of the switch.
JP-A-8-177107

  Therefore, in the conventional switch position detecting device shown in FIGS. 7 and 8, the number of ports used by the microcomputer 3 is six, the size of the microcomputer is totally increased, a large installation space is required, and the price is also low. The effect will come out.

  Further, in the state determination device in the conventional warm water washing toilet seat device shown in FIG. 9, the number of ports used by the microcomputer 3 is reduced, but a dedicated voltage generation circuit is required for determining the switch state, and the number of switches is small. As the voltage increases, the voltage generation circuit becomes more complicated, and as a result, a large installation space and price may be affected.

  In view of the above problems of the prior art, the problem to be solved by the present invention is to reduce the current consumption by simplifying the position detection circuit of the switch, simplify the microcomputer parts themselves, reduce the size of the apparatus itself, and the parts It is an object to provide a switch position detecting device having a reduced number of points, a remote control device using the switch position detection device, and a hot water washing toilet seat device using the remote control device.

  The switch position detection device of the present invention includes a plurality of switches, and a control unit having a microcomputer that connects the plurality of switches to a port and detects an operation position of each switch, and the control unit includes the port, The input side is provided by the number of the switches, and the output side is provided by the number of poles of the switch.

  By the above means, the number of ports is equal to the number of switches with the input side as a common terminal, and the number of ports on the output side is equal to the number of switch poles by sharing the same operation position. It is intended.

  The switch position detection device of the present invention can be easily installed by reducing the number of ports of the microcomputer and can be downsized due to the small space.

  A first invention includes a plurality of switches and a control unit having a microcomputer that connects the plurality of switches to ports and detects an operation position of each switch. The control unit includes the ports, and the input side The number of switches and the number of switches on the output side are the same as the number of poles of the switches.

  As a result, the microcomputer has the same number of ports as the number of switches on the input side, and the number of ports on the output side equal to the number of switch poles due to the common operating position, reducing the number of output ports. In addition to being easy, a large space is not required, and the apparatus can be downsized.

  The second invention is a remote control device that is mounted with the switch position detecting device according to the first invention and is driven by a battery. Thereby, the downsizing of the switch position detecting device leads to the downsizing of the battery-operated remote control device.

  In particular, the third invention is a remote control device according to the second invention, a hot water washing toilet seat body which is installed in a toilet bowl and controls various functions used during stool operation of the remote control device, and the hot water And a toilet lid for the toilet seat body, and the remote control device is a warm water toilet seat device configured such that various functions of the warm water toilet seat body can be used or not used by a plurality of switches. is there.

  Thereby, the warm water washing toilet seat device reduces the installation space of the remote control device and is easy to install.

  According to a fourth aspect of the present invention, in the third aspect of the invention, the operation positions of the plurality of switches of the remote control device that enable or disable the various functions of the hot water cleaning toilet seat body are the installation of the hot water cleaning toilet seat device. This is a warm water washing toilet seat that can be set later or in advance. Thereby, it becomes easy to install the warm water washing toilet seat device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment. Further, in the description of the present embodiment, parts having the same configuration and the same operational effects are denoted by the same reference numerals, and redundant description will not be given.

(Embodiment 1)
FIG. 1 shows a configuration diagram of a switch position detection device according to Embodiment 1 of the present invention, and also serves as a block diagram showing a main part of a remote control device incorporating the device and a warm water washing toilet seat device equipped with the remote control device. ing.

  In FIG. 1, a warm water cleaning toilet seat device used by installing a toilet seat on a toilet in a toilet room is provided with a hot water cleaning toilet seat body 40 provided at the rear of the toilet seat, a local cleaning function for washing a human body part after a toilet with warm water, Drying function to dry the local area, deodorizing function by sucking the smell of filth, function to automatically open and close the toilet seat lid when a person enters and exits the toilet, toilets to wash the toilet surface in advance when a person enters the toilet, etc. Various functions such as a function to make it difficult to attach the discharged material, and the user can operate the function by operating the switch of the remote control device 41 (hereinafter referred to as remote control) shown in FIG. 2 installed on the wall of the toilet room. It can be used.

  The remote controller 41 is driven by a battery as a power source, and incorporates the switch position detection device according to the first embodiment of the present invention. When the power source of the microcomputer 43 as the control means 42 and its peripheral circuit is turned on, the switch position is detected. The detection device needs to detect which of the switch operation states (for example, the on / off operation position) is.

  That is, in the switch position detection device of the present embodiment, the human body detection sensor 44 detects that a person enters and exits the toilet room, and the hot-water cleaning toilet seat body 40 that receives the signal detects the function of the toilet lid automatic opening / closing device 45. In order to make the toilet surface clean in advance and make it difficult for the stool or the like to adhere to the stool, the automatic opening / closing switch determines whether the user uses or disables the function of the means 46 for flowing water into the toilet. 47 and the water supply switch 48, the slide pieces 47b and 48b are turned between the terminals or between the input terminals by the slide operation of the operation buttons 47a and 48a in the off state (disabling the function) and the on state (using the function). The microcomputer 43 having built-in program software for executing (Table 1), which will be described later, detects which state is set in advance between the positions.

  The automatic open / close switch 47 and the water supply switch 48 use a slide switch with one circuit and two contacts, and connect a pull-up resistor to the microcomputer port 1 of the output terminal in which one ON terminal and the OFF terminal of the automatic open / close switch 47 are connected in common. The microcomputer port 3 to which the other incoming terminal is connected and the microcomputer port 4 to which the other cut terminal is connected are respectively input.

  And it is made to recognize that the one where H is input as a criterion is connected. Thereafter, in order to determine the state of the water supply switch 48, the microcomputer port 1 to which the output terminal of the automatic opening / closing switch 47 is connected is set to high impedance. Similarly, the microcomputer port 2 of the output terminal in which one input terminal and the cut-off terminal of the water supply switch 48 are connected in common is connected to a pull-up resistor to output H, and the other input terminal is connected to the automatic open / close switch 47 in common. The microcomputer port 3 connected and the microcomputer port 4 connected to the other cutting terminal are input. And it is made to recognize that the one where H is input as a criterion is connected.

  In this way, the operation positions of the automatic opening / closing switch 47 and the water supply switch 48 are determined by the microcomputer 43, but the microcomputer port 1 to which the output terminal of the automatic opening / closing switch 47 is connected and the output terminal of the water supply switch 48 are connected. Since the change of the slide switch cannot be recognized if the microcomputer port 2 is still in the high impedance state, this time, since it is composed of two slide switches, there are four possible switch operation positions.

For example, when the initial detection results in the case shown in FIG. 3 (state 1: automatic open / close switch 47 is turned off and water supply switch 48 is turned off), the remote controller 41 is designed to suppress battery current consumption. The microcomputer ports 1 and 2 are connected to a pull-up resistor for input setting, and the microcomputer port 4 is connected to a pull-up resistor for input setting. Further, L is output at the microcomputer port 3 which is not connected. In this state, no standby current flows.

  When the operation position of either the automatic open / close switch or the water supply switch 47, 48 is changed in this state 1, the microcomputer 43 recognizes that the state has been changed. For example, the automatic open / close switch 47 is in the state shown in FIG. When the switch is changed from OFF to ON as shown in 2, the microcomputer port 1 outputs L, the microcomputer port 3 outputs L, and the microcomputer port 4 is connected to a pull-up resistor for input setting. Leave the microcomputer port 2 as it is.

  In addition, when the water supply switch 48 is changed from OFF to ON as in the state 3 shown in FIG. 5 in the state 1 shown in FIG. 3, the microcomputer port 1 outputs L and the microcomputer port 3 is connected to the pull-up resistor to set the input. The microcomputer port 4 outputs L. Leave the microcomputer port 2 as it is.

  This time, in the state 4 shown in FIG. 6, when the automatic open / close switch 47 is changed from OFF to ON and the water supply switch 48 is changed from OFF to ON, the microcomputer ports 1 and 2 are connected to a pull-up resistor. Input setting, microcomputer port 3 is set to H output, and microcomputer port 4 is set to L output.

  When two slide switches are provided as described above, one of the four states is set. The following (Table 1) shows the setting of the microcomputer port in the state of the operation position of each switch.

  By controlling the circuit configuration and the microcomputer 43, it is possible to detect the operation position of the slide switch in the remote controller, which is an example of the battery-driven device, and to suppress the standby current. As a result, the number of ports used for the microcomputer can be reduced, the size of parts can be reduced, the installation space can be reduced compared to the conventional size, and the size can be reduced. It can be expected to be effective in terms of price

  The remote controller 41 shown in FIG. 2 is configured to be openable as the lower half 41a of the front surface is indicated by an arrow, and the operation buttons 47a and 48a of the automatic open / close switch 47 and the water supply switch 48 are provided on both sides of the rear surface. It has been.

  In the switch position detection device in the above embodiment, the present invention has been described using the slide switch. However, one circuit that changes to the on / off position, one circuit that changes to the strong, medium, and weak positions. Even if it is applied to position detection of a three-contact type switch or the like, it is possible to expect the same effect as this embodiment.

  As described above, the switch position detection device according to the present invention can be applied to the switch position detection of electrical devices, the remote control device of devices, and the hot water washing toilet seat device.

The block diagram which shows the switch position detection apparatus in Embodiment 1 of this invention, and the figure which also shows the principal part of the remote control apparatus incorporating the said apparatus and the warm water washing toilet seat apparatus which mounts this The front view of the remote control apparatus of the warm water washing toilet seat apparatus which mounts the position detection apparatus of the slide switch of Embodiment 1 Configuration diagram of state 1 of the position detection device of the slide switch in the first embodiment of the present invention The circuit block diagram of the state 2 of the position detection apparatus of the slide switch in Embodiment 1 Configuration diagram of state 3 of the position detection device of the slide switch in the first embodiment Configuration diagram of state 4 of the position detection device of the slide switch in the first embodiment Configuration diagram of position detection circuit of conventional 1-circuit 2-contact slide switch Flow chart of slide switch position detection method Circuit diagram of state determination device in conventional warm water washing toilet seat device

Explanation of symbols

41 Remote control device 42 Control means 43 Microcomputer 47 Automatic open / close switch (switch)
48 Water switch (switch)

Claims (4)

A plurality of switches, and a control means having a microcomputer for connecting the plurality of switches to the ports and detecting the operation position of each switch, the control means including the ports, and the input side corresponding to the number of the switches. The switch position detecting device is provided on the output side by the number of poles of the switch. A remote control device equipped with the switch position detection device according to claim 1, wherein the switch position detection device is driven by a battery. A remote control device according to claim 2, a warm water flush toilet seat body that is installed in a toilet and controls various functions used for toilets by operating the remote control device, and a toilet lid of the warm water flush toilet seat body And the remote control device is configured so that various functions of the hot water washing toilet seat main body can be used or not used by the plurality of switches. The position of the plurality of switches of the remote control device for enabling or not using various functions of the hot water washing toilet seat body can be set in advance after the hot water washing toilet seat device is installed. Warm water washing toilet seat device.