JP2002344638A - Interphone system for bath room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an interphone system for a bath room that is used for voice speech communication between the inside and the outside of a bath room and realizes a hands-free speech in an interphone in the bath room. SOLUTION: An interphone 1 at the outside of the bath room is provided with a speech communication switch 105 that starts a speech with an interphone 2 in the bath room and with a transmission reception changeover means 212 that selects a transmission state where a transmission reception switching request is transmitted in response to the operation of the speech communication switch 105 and the voice of the interphone 1 at the outside of the bath room is transmitted to the interphone 2 in the bath room or a reception state where the voice of the interphone 2 in the bath room is received, and selects a transmission state where the voice of the interphone 1 at the outside of the bath room is transmitted to the interphone 2 in the bath room or a reception state where the voice of the interphone 2 in the bath room is received upon the receipt of a transmission reception switching request from the interphone 2 in the bath room.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathroom intercom apparatus for making a voice call inside and outside a bathroom.

[0002]

2. Description of the Related Art Conventionally, in this type of intercom apparatus, for example, Japanese Patent Laid-Open No.
As disclosed in Japanese Patent No. 53272, it is configured to transmit the voice of one intercom whose telephone switch is pressed to another interphone whose telephone switch is not pressed only while the telephone switch is pressed. Was what it was.

[0003]

However, in this conventional apparatus, it is necessary to keep pressing the talk switch when transmitting a call. For example, even if there is a call from the intercom outside the bathroom, the call in the bathroom may be lost. If the bather is washing his / her hair, the call switch of the intercom in the bathroom cannot be pressed, so that there is a problem that it is impossible to talk to the interphone outside the bathroom.

[0004] In addition, there is a case where an elderly bather slips and falls during bathing, and there is a demand for monitoring the state of the bather using an intercom. If the voice in the bathroom cannot be transmitted to the intercom outside the bathroom unless the internal intercom talk switch is pressed, the bather cannot already press the bathroom intercom talk switch due to some accident. It was impossible to listen to the sound in the bathroom by the intercom outside the bathroom.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, there is provided a bathroom intercom provided in a bathroom and a bathroom intercom provided outside the bathroom. In a bathroom intercom apparatus for performing a voice call inside and outside a bathroom, a call switch for starting a call with the bathroom outside interphone is transmitted to the bathroom intercom, and a transmission / reception switch request is transmitted according to an operation of the call switch. When switching between a transmission state in which the sound of the bathroom intercom is transmitted to the outside bathroom intercom and a reception state in which the sound of the outside bathroom intercom is received, and a transmission / reception switch request from the outside bathroom intercom is received. Transmitting the voice of the intercom in the bathroom to the interphone outside the bathroom, and receiving the voice of the interphone outside the bathroom A handset switching means for switching the receiving state that the the bathroom outside intercom, and call switch initiates a call to the bathroom interphone,
A transmission / reception switch request is transmitted in response to the operation of the call switch, and a voice transmission of the intercom outside the bathroom is transmitted to the intercom in the bathroom, and a reception state in which the voice of the intercom in the bathroom is received is switched. Receiving a transmission / reception switch request from the bathroom intercom,
A transmission / reception switch means for switching between a transmission state for transmitting the sound of the bathroom intercom to the bathroom intercom and a reception state for receiving the sound of the bathroom intercom, and a call of the intercom on the side that started the call Transmission and reception can be switched by operating only the switch.

[0006] Thereby, the transmission / reception state of the other interphone can be switched by operating the call switch of the intercom which has started the interphone call, so that a person who has the intention of the call can switch the transmission / reception. In addition to being able to talk at their own pace, the person on the intercom side who received the call request can make hands-free calls without having to touch the intercom, Even if the intercom cannot be reached due to some accident, the hands-free intercom call can be made without touching the intercom in the bathroom.

According to a second aspect of the present invention, the intercom in the bathroom and the interphone outside the bathroom have a notifying means, and the notifying means notifies that the transmission state and the reception state have been switched by the operation of the transmission / reception switching means. To do.

[0008] With this, when the call switch is operated, a notification is made when the state is switched from the transmission state to the reception state or from the reception state to the transmission state, so that the switching is noticed and the usability is improved.

According to a third aspect of the present invention, the informing means for the intercom in the bathroom and the intercom outside the bathroom includes a status display means and a switching sound generating means, and the status display means is in a transmitting state or a receiving state. Is displayed in characters or graphics, and the switching sound generation means generates a switching sound when the transmission state and the reception state are switched.

With this configuration, a switching sound is emitted when the state is switched from the transmission state to the reception state or from the reception state to the transmission state by operating the call switch, and the state display means displays whether the current state is the transmission state or the reception state. Either of the states is clearly displayed by text or graphics, and the intercom that received the hands-free call request can more easily understand the current intercom call state both audibly and visually, making it easier to use. Significantly improved.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a remote controller outside the bathroom with an intercom function provided outside the bathroom such as a kitchen (external bathroom intercom), reference numeral 2 denotes a remote controller in the bathroom with an intercom function provided in the bathroom (intercom room in the bathroom), and reference numeral 3 Is a main body control unit of an oil water heater (not shown), and 4 is a two-core cord for connecting the remote controller 1 outside the bathroom, the remote controller 2 in the bathroom, and the main body control unit 3 respectively, and these water heaters originally have. A remote control unit is used to configure a bathroom intercom device.

First, the remote controller 1 outside the bathroom will be described. Reference numeral 101 denotes a microcomputer for controlling the remote controller 1 outside the bathroom. 102 denotes a hot water temperature, a time, a state of the water heater and the state of the remote controller 1 outside the bathroom. A status display means (notifying means) for displaying whether the telephone is in a transmission state or a reception state of the interphone function; 103, a microphone for transmitting voice outside the bathroom to the remote controller 2 in the bathroom via the two-core cord 4; Reproduces the sound transmitted from the remote controller 2 in the bathroom through the two-core cord 4, and
A speaker (notifying means) for outputting a switching sound when switching between the transmitting state and the receiving state based on the instruction 01, and a call switch 105 for starting transmission of sound to the remote controller 2 in the bathroom.

Reference numeral 106 denotes control data communication means for communicating control data between the remote controller 1 outside the bathroom and the main body control unit 3 through the two-core cord 4, and a hot water supply temperature change switch (not shown) or other hot water supply. Various command data by pressing a remote control switch (not shown) for instructing the machine to operate is transmitted to the main body control section 3, and current hot water supply temperature data, operation state data, display data, and notification data from the main body control section 3 And so on.

Reference numeral 107 denotes an AM modulating means for AM-modulating the sound around the remote controller 1 outside the bathroom picked up by the microphone 103 as an audio signal on a carrier wave, and 108 denotes a carrier wave transmitted from the remote controller 2 in the bathroom. AM demodulation means for demodulating the transmitted audio signal and sending it to the speaker 104.

Reference numeral 109 denotes a transmission / reception switching means for switching between a transmission state and a reception state. When the call switch 105 of the remote controller 1 outside the bathroom is pressed for the first time, the interphone communication is started as the transmission state, and the outside of the bathroom is started. Is transmitted to the remote controller 2 in the bathroom, and when the call switch 105 is pressed a second time, the telephone is switched to a reception state in which the sound in the bathroom is received.

More specifically, when the call switch 105 is pressed a second time, the call switching signal generating means 110 generates a specific voice signal (transmission / reception switching signal) for transferring the transmission right to the remote controller 2 in the bathroom. Generate. The transmission / reception switching signal is transmitted to the remote controller 2 in the bathroom through the two-core cord 4 and the right to transmit is transferred to the remote controller 2 in the bathroom.
The M modulation means 107 is stopped and the AM demodulation means 108 is operated to switch to the reception state. Conversely, when the transmission / reception switching signal filter unit 111 separates and receives the transmission / reception switching signal based on the specific audio signal from the remote controller 2 in the bathroom, the AM demodulation unit 108 is stopped and the AM modulation unit 107 is operated to transmit the signal. It switches to the talking state.

Thus, the first pressing operation of the telephone conversation switch 105 of the remote controller 1 outside the bathroom is in a transmitting state in which the voice outside the bathroom is transmitted to the remote controller 2 of the bathroom, and the telephone switch 105 is pressed the second time. By operation, the remote controller 1 outside the bathroom switches from the transmitting state to the receiving state,
In the bathroom, the bather can alternately talk outside the bathroom without touching the remote controller 2 in the bathroom.

Next, the bathroom remote controller 2 will be described. Reference numeral 201 denotes a microcomputer which controls the bathroom remote controller 2, and 202 denotes a bath temperature, a time, a state of a water heater and a bathroom remote controller based on an instruction of the microcomputer 201. A status display means (notification means) 2 for displaying whether a transmission state or a reception state of the intercom function is provided, a microphone 203 for transmitting voice in the bathroom to the remote controller 1 outside the bathroom via the two-core cord 4; 204 reproduces the voice transmitted from the remote controller 1 outside the bathroom via the two-core cord 4 and
A speaker (notifying means) for outputting a switching sound when switching between the transmission state and the reception state based on the instruction of 01, and a call switch 205 for starting transmission of voice to the remote controller 1 outside the bathroom.

Reference numeral 206 denotes control data communication means for communicating control data between the remote controller 2 in the bathroom and the main body control unit 3 via the two-core cord 4, and includes a bath temperature change switch (not shown) and other hot water heaters. Various command data by pressing a remote control switch (not shown) for instructing the machine to operate is transmitted to the main body control unit 3 and current bath temperature data and operation state data from the main body control unit 3 are received. is there.

Reference numeral 207 denotes an AM modulating means for AM modulating the sound around the bathroom remote controller 2 picked up by the microphone 203 as a sound signal on a carrier wave, and 208 denotes a carrier wave transmitted from the remote controller 1 outside the bathroom. AM demodulation means for demodulating the reproduced audio signal.

Reference numeral 209 denotes a transmission / reception switching means for switching between a transmission state and a reception state. When the telephone switch 205 of the bathroom remote controller 2 is pressed for the first time, the intercom communication is started as the transmission state, and Is transmitted to the remote control 1 outside the bathroom, and when the call switch 205 is pressed a second time, the telephone is switched to a receiving state in which the sound outside the bathroom is received.

More specifically, when the call switch 205 is pressed a second time, the call switching signal generating means 210 generates a specific voice signal (transmission / reception switching signal) for transferring the transmission right to the remote controller 1 outside the bathroom. Generate. When the transmission / reception switching signal is transmitted to the remote controller 1 outside the bathroom via the two-core cord 4 and the right to transmit is transferred to the remote controller 1 outside the bathroom, the A
The M modulation means 207 is stopped, and the AM demodulation means 208 is operated to switch to the reception state. Conversely, when the transmission / reception switching signal filter means 211 receives a transmission / reception switching signal based on a specific audio signal from the remote controller 1 outside the bathroom, the AM demodulation means 208 is stopped and the AM modulation means 2
07 is operated to switch to the transmission state.

As described above, the first press operation of the telephone conversation switch 205 of the bathroom remote controller 2 causes a transmission state in which the sound in the bathroom is transmitted to the remote controller 1 outside the bathroom. By the pressing operation, the bathroom remote controller 2 switches from the transmitting state to the receiving state,
Outside the bathroom, a person near the remote controller 1 outside the bathroom can alternately talk with the bathroom without touching the remote controller 1 outside the bathroom.

Reference numeral 212 denotes a transmission permission / non-permission switching means for switching permission / prohibition of transmission of the remote controller 2 in the bathroom. When the telephone call switch 205 is continuously pressed for a certain period of time, the voice of the remote controller 2 in the bathroom can be transmitted. It switches between a talk permitted state and a talk prohibited state in which talk is prohibited.

Here, irrespective of whether a call is in progress or not, if the call switch 205 is continuously pressed to switch to the transmission prohibited state for a certain period of time, the AM modulator 207 is stopped and the sound in the bathroom is transmitted to the remote controller 1 outside the bathroom. Speaking is prohibited, and when the state is switched to the transmission permission state, the AM modulation means 207 is operated according to the presence or absence of the transmission right to enable the voice in the bathroom to be transmitted to the remote controller 1 outside the bathroom. When the call switch 105 is pressed by the remote controller 1 outside the bathroom and the right of transmission is transferred to the remote controller 2 in the bathroom, the sound in the bathroom is transmitted according to the state of the transmission permission / inhibition switching means 212. It is possible to select whether or not to talk to the user.

Next, the main body control section 3 will be described. Reference numeral 301 denotes a microcomputer for controlling a water heater such as combustion and temperature control, and 302 denotes a remote controller 1 outside the bathroom and a remote controller 2 in the bathroom via the two-core cord 4. And 303, a control data communication unit for transmitting and receiving control data to and from the remote controller 1 outside the bathroom and the remote controller 2 in the bathroom via the two-core cord 4.

Reference numeral 304 denotes an AM demodulator for AM demodulating an audio signal on a carrier wave transmitted from the remote controller 1 outside the bathroom or the remote controller 2 in the bathroom, and 305 a specific audio signal (transmission / reception switching) from the AM demodulated audio signal. Signal switch means for extracting a signal), and when the second or subsequent call switch 105 or 205 is pressed after the start of the call and the call switch signal is received, the control data of the water heater main body is once transmitted to the remote control 1 outside the bathroom and In addition to transmitting to the remote controller 2 in the bathroom, the transmission right of the remote controller that first pressed the call switch 105 or 205 is transferred to another remote controller.

Next, the operation of this embodiment will be described with reference to FIGS. 2 and 3. When the call switch 105 of the remote controller 1 outside the bathroom is pressed for the first time, the remote controller 1 outside the bathroom transmits the call start data. The control data including the control data is transmitted to the remote controller 2 in the bathroom via the control data communication means 106, and the AM modulator 107 is operated to put the audio signal picked up by the microphone 103 on the carrier wave to perform AM modulation. The transmission is started, and the speaker 104 is driven to emit a buzzer sound for starting a call, and the status display means 10 is started.
In step 2, a message indicating that the user is in a transmitting state after starting a call is displayed by characters (for example, "transmitting") or graphics (for example, "microphone picture" or "ear picture").

The remote controller 2 in the bathroom, which has received the control data including the call start data via the control data communication means 206, activates the AM demodulating means 208 to activate the audio signal on the carrier wave from the remote controller 1 outside the bathroom. Can be reproduced by the speaker 204, and the speaker 204 is driven to generate a buzzer sound for starting a call and to display the status display means 20.
2, the call is started and the receiving state is displayed by a character (for example, "receiving") or a graphic (for example, "speaker picture" or "mouth picture"). And AM demodulation means 2
The audio signal from the remote controller 1 outside the bathroom demodulated at 08 is reproduced by the speaker 204.

When the transmission from the outside of the bathroom ends and the call switch 105 of the remote controller 1 outside the bathroom is pressed a second time,
The transmission / reception switching means 109 is a transmission / reception switching signal generation means 110
Is operated to transmit a transmission / reception switching signal based on a specific voice signal, and the AM modulation means 107 is stopped to activate the control data communication means 106.

Then, the remote controller 2 in the bathroom demodulates the transmission / reception switching signal based on the specific audio signal by the AM demodulation means 208 and separates and receives the transmission / reception switching signal filter means 211.
The AM demodulation means 208 is stopped and the control data communication means 20 is stopped.
Activate 6.

The main body control section 3 demodulates the transmission / reception switching signal based on the specific voice signal by the AM demodulation means 304 and separates and receives the transmission / reception switching signal filter means 305. Communication means 30
3 to the remote controller 1 outside the bathroom and the remote controller 2 in the bathroom.

The remote controller 2 in the bathroom, which has received the control data including the call switching data from the main body control unit 3, activates the AM modulation means 207, modulates the audio signal picked up by the microphone 203 on the carrier wave, and performs AM modulation. Transmission to the external remote controller 1 is started, and further, the speaker 204 is driven to generate a buzzer sound (switching sound) for call switching, and a call is switched to the state display means 202 to indicate that the state has been switched from the reception state to the transmission state (for example, characters). It is displayed by "transmitting" or a figure (for example, "microphone picture" or "ear picture").

The remote controller 1 outside the bathroom, which has received the control data including the call switching data from the main body control unit 3,
The demodulation means 108 is operated to enable the audio signal on the carrier wave from the remote controller 2 in the bathroom to be reproduced by the speaker 104. Further, the speaker 104 is driven to emit a buzzer sound (switching sound) for call switching and a state display means. The call is switched to 102 and the switch from the transmitting state to the receiving state is displayed by a character (for example, “receiving”) or a graphic (for example, “speaker picture” or “mouth picture”). And AM
The audio signal from the bathroom remote controller 2 demodulated by the demodulation means 108 is reproduced by the speaker 104.

When a predetermined time T has elapsed since the start of the transmission of the audio signal in the bathroom, the remote controller 1 outside the bathroom and the remote controller 2 in the bathroom respectively receive the AM demodulating means 108 and AM.
The modulation means 207 is stopped and the control data communication means 106
When the control data 206 including the call termination data transmitted from the main body control unit 3 is received, the respective speakers 104 and 204 are driven to emit a buzzer sound for terminating the call, and the state display means 102 and 202 are activated. It returns to the normal water heater status display and terminates the intercom call.

As described above, since the intercom call is requested by the remote control 1 outside the bathroom and the remote control 1 outside the bathroom, which first pressed the call switch, has the right to determine the transmission right, the remote control 1 at the pace of the side requesting the interphone call. The user can talk with the remote controller 2 in the bathroom and is easy to use, and the remote controller 2 in the bathroom enables hands-free communication without touching the remote controller 2 in the bathroom. This makes it possible to answer a call while continuing to wash the hair, for example, when a call request is received from the user.

Also, since the hands-free communication with the remote controller 2 in the bathroom becomes possible, there is some concern about the physical condition and health condition of the bather, and the monitoring of the sound during bathing is carried out in order to detect an accident while bathing at an early stage. It is possible to answer the request to do it. Furthermore, even if the bather cannot press the call switch 205 of the remote controller 2 in the bathroom due to some accident, the family member outside the bathroom does not touch the call switch 205 of the remote controller 2 in the bathroom when calling. I can answer.

Although the above description has been made on the case where the remote controller 2 in the bathroom is in the transmission permission state, the case where the transmission is in the transmission inhibition state with reference to FIG. 4 will be described. When the call switch 205 of the remote controller 2 is continuously pressed for a certain period of time (for example, 3 seconds), the transmission permission / non-permission switching unit 212 modulates the AM modulation unit 207 to prohibit transmission of the sound of the bathroom remote controller 2 to the remote controller 1 outside the bathroom. To prohibit the operation and set the transmission prohibition state.

In this state, when the call switch 105 of the remote controller 1 outside the bathroom is pressed for the first time and a call request is transmitted from outside the bathroom, the remote controller 2 in the bathroom controls the AM demodulator 2
In operation 08, the audio signal transmitted from outside the bathroom is demodulated and reproduced from the speaker 204.

Then, the call switch 105 of the remote controller 1 outside the bathroom is pressed a second time, a transmission / reception switching signal is transmitted, and the transmission right is transferred to the remote controller 2 in the bathroom. Is in the transmission prohibited state, the sound in the bathroom is not transmitted to the remote controller 1 outside the bathroom, and the intercom call is terminated.

As described above, the bathroom remote controller 2 is normally capable of hands-free intercom communication. However, if the bather does not want to hear the sound in the bathroom, the transmission possibility switching means 212 transmits the sound. Since the talk can be prohibited, the bather can protect his / her privacy.

Next, call switch 2 of remote controller 2 in the bathroom
FIGS. 5 and 6 show a case where the intercom call is started by pressing 05 for the first time, but the description thereof will be omitted. Thus, when the bather tries to start an intercom call with the outside of the bathroom, even when a person near the remote control 1 outside the bathroom cannot release his hand during some work, the remote control 1 outside the bathroom can use the remote control 2 in the bathroom. Since the state of transmission / reception can be switched by the bather who operates the call switch 205, the person near the remote controller 1 outside the bathroom can perform intercom communication with the bathroom hands-free without interrupting the work.

Here, even if the remote control 2 in the bathroom is in a transmission-prohibited state, if the call switch 205 of the remote control 2 in the bathroom is pressed, a bather in the bathroom desires intercom communication. Therefore, it is desirable to temporarily release the call prohibition state. Then, when the intercom call is terminated, the call is prohibited again so that even if there is a call request from the remote controller 1 outside the bathroom, the sound in the bathroom may not be transmitted.

It should be noted that the present invention is not limited to the above-described embodiment, and the audio signal may be FM-modulated or coded, or the control data and the audio signal may be superimposed and transmitted and received simultaneously. .

[0045]

As described above, according to the first aspect of the present invention, the transmission / reception state in the bathroom can be switched by operating the call switch of the intercom outside the bathroom which has started the interphone call. The out-of-bath intercom that has initiated a call with a willingness to talk can switch between out-of-bath intercom and in-bath intercom transmission / reception and talk at its own pace, and touch the intercom in the bathroom. Unnecessary hands-free communication becomes possible, and monitoring of the sound in the bathroom from the intercom outside the bathroom becomes possible.

According to the second aspect of the present invention, the user is notified when the state is switched from the transmission state to the reception state or from the reception state to the transmission state by operating the communication switch. The usability is improved.

According to the third aspect of the present invention, a switching sound is generated when the state is switched from the transmission state to the reception state or from the reception state to the transmission state by operating the call switch, and the state display means is provided. Indicates the current state of the transmission state or the reception state by text or graphics in an easy-to-understand manner, and even in the hands-free bathroom intercom, it is easier to understand the current intercom call state both by hearing and vision And the usability is greatly improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of signals transmitted and received when a call is started from the remote controller outside the bathroom of the same embodiment.

FIG. 3 is an explanatory diagram of a procedure when a call is started from the remote controller outside the bathroom of the same embodiment.

FIG. 4 is an explanatory diagram of a procedure when a telephone call is started from the remote controller outside the bathroom in a state in which the remote controller in the bathroom of the same embodiment is in a transmission prohibited state.

FIG. 5 is an explanatory diagram of signals transmitted and received when a call is started from the bathroom remote controller of the same embodiment.

FIG. 6 is an explanatory diagram of a procedure when a call is started from the bathroom remote controller of the same embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Remote control outside a bathroom (intercom outside a bathroom) 101 Microcomputer 102 Status display means (notification means) 103 Microphone 104 Speaker (notification means) 105 Call switch 106 Control data communication means 107 AM modulation means 108 AM demodulation means 109 Transmission / reception switching means 110 Transmission Reception switch signal generation unit 111 Transmission / reception switch signal filter unit 2 Bathroom remote controller (bathroom intercom) 201 Microcomputer 202 Status display unit (notification unit) 203 Microphone 204 Speaker (notification unit) 205 Call switch 206 Control data communication unit 207 AM modulation Means 208 AM demodulation means 209 Transmission / reception switching means 210 Transmission / reception switching signal generation means 211 Transmission / reception switching signal filter means 212 Transmission enable / disable switching means 3 Main body control unit 301 Microcomputer 302 Power supply means 303 Control data communication means 304 AM demodulation means 305 handset switching signal filter means

Claims (3)

[Claims] 1. An intercom in a bathroom provided in a bathroom, and an interphone outside a bathroom provided outside a bathroom,
In a bathroom intercom apparatus for performing a voice call inside and outside a bathroom, a call switch for starting a call with the outside bathroom intercom is transmitted to the bathroom intercom, and a transmission / reception switch request is transmitted in response to an operation of the call switch. When switching between a transmission state in which the sound of the bathroom intercom is transmitted to the outside bathroom intercom and a reception state in which the sound of the outside bathroom intercom is received, and a transmission / reception switch request from the outside bathroom intercom is received, A transmission / reception switching means for switching between a transmission state for transmitting the sound of the bathroom intercom to the outside bathroom intercom and a reception state for receiving the sound of the outside bathroom intercom, wherein the outside bathroom includes the bathroom A call switch for starting a call with the internal intercom, and a call A switch request is transmitted to switch between a transmission state in which the voice of the bathroom intercom is transmitted to the bathroom interphone and a reception state in which the bathroom intercom is received, and transmission / reception switching from the bathroom interphone. Receiving the request, the transmission start / reception switching means for switching between a transmission state for transmitting the voice of the intercom outside the bathroom to the intercom in the bathroom and a reception state for receiving the voice of the intercom in the bathroom is provided. The intercom device for a bathroom, wherein the transmission and reception can be switched by operating only the call switch of the intercom on the side. 2. The intercom in the bathroom and the interphone outside the bathroom have a notifying unit, and the notifying unit notifies that the transmitting state and the receiving state are switched by the operation of the transmitting and receiving switching unit. The intercom device for a bathroom according to claim 1, wherein: 3. The notifying means for the intercom in the bathroom and the intercom outside the bathroom is constituted by a status display means and a switching sound generation means, and the status display means indicates in a transmitting state or a receiving state by a character or a graphic. 3. The intercom device for a bathroom according to claim 2, wherein the switching sound generating means generates a switching sound when the state is switched between a transmitting state and a receiving state.