JPH044638B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an indoor communication notification unit that communicates or provides notification between rooms.

[Background technology] In recent years, there has been an increase in the desire for safe-designed housing that takes into consideration the elderly and disabled people, and changes in lifestyle and awareness such as the tendency to emphasize family communication have led to the need for communication between rooms. Increasingly, a notification unit for communication between rooms is desired. Conventional indoor communication notification units include comprehensive home information security devices such as home controllers. However, these home controllers are expensive, and are not suitable for general residences in terms of price and system scale, and so far they have had the problem of being used only in large-scale residences.

Therefore, as an indoor communication notification unit that improves this point, the one described in Japanese Patent Application No. 61-177237 has been proposed. In this alarm unit for communication between rooms, the wiring between the main unit and the transmitter button is 2-wire non-polar wiring, and by switching the line voltage,
It was designed to control operations such as calling operations, response operations, and standby status. In order to perform a response operation from the main unit to the transmit button, a voltage detector is installed on the transmitter side to determine the line voltage, and the output of this voltage detector is used to sound a buzzer or the like as a notification means. An oscillation circuit was required. In other words,
The main device is also equipped with an oscillation circuit that generates a notification sound when a call is received from the transmitter, and the voltage detection circuit and oscillation circuit are required for each transmitter. For this reason, there were problems in that the configuration of the transmitter became complicated and the cost increased.

[Object of the Invention] The present invention has been made in view of the above-mentioned points, and its purpose is to simplify the configuration of a transmitter and to provide an indoor device that can reduce the size and cost of the transmitter. The purpose of this invention is to provide a notification unit for communication between

[Disclosure of the Invention] (Structure) The present invention relates to a main unit installed in a room such as a living room where a family gathers, and a transmitter installed in each room such as a bathroom, toilet, children's room, or elderly parent's room. and a constant voltage means for applying a constant voltage between the two wires, and a signal flowing between the two wires indicating that the transmitter button of the transmitter connected between the two wires has been operated. A call detection means for detecting by electric current, a notification means for notifying in which room a call is received by the output of the call detection means, and an oscillation means for generating a signal for a notification signal outputted by the notification means. , a switching element as short-circuit prevention means inserted between the transmitting button and the constant voltage means to prevent the output of the constant voltage means from being short-circuited when the signal button is operated; The main device is provided with a response button that is operated to respond when the main device side is notified and applies the output of the oscillating means to the control terminal of the switching element, and the response button is connected between the two wires. A buzzer that is driven by an oscillation signal applied by an oscillation means through a switching element when operated, and a capacitor inserted in series with the buzzer to cut off the DC voltage applied between the two wires under normal conditions. The transmitter is provided with a buzzer drive signal, and when the main device responds to the transmitter side, the oscillation means of the main device outputs a buzzer drive signal to the transmitter via two wires.

(Embodiment) FIGS. 1 to 4 are diagrams showing one embodiment of the present invention. In this embodiment, as shown in FIG. A device 1 is installed, and a transmitter 2 is installed in each room such as a bathroom, a toilet, a child's room, or an elderly parent's room. The transmitter 2 includes a call button 6 that is pressed when necessary, such as when an elderly person or a disabled person calls a family member, and an indicator light 7 that indicates that the call button 6 has been operated. . The main device 1 has indicator lights 3 ₁ to 3 ₄ that indicate in which room the transmitter 2 is operated when the transmit button 6 of the transmitter 2 is pressed, and when the transmit button 6 is operated. It is equipped with a notification means consisting of a buzzer 5 that sounds a notification sound. It should be noted that since the person operating the transmitter 2 does not know whether there is a person on the body concrete 1 side, the transmit button 6 of the transmitter 2 is pressed and operated.
The main device 1 includes response buttons 21 ₁ to 21 ₄ that are pressed by a person on the main device 1 side to respond when a notification sound is sounded on the main device 1 side, and the response button 21 is pressed. The transmitter 2 is equipped with a buzzer 22 that emits a response sound on the transmitter 2 side.
Moreover, the knobs 4 below the indicator lights 3 ₁ to 3 ₄ are for adjusting the volume of the buzzer 5 .

FIG. 1 shows the configuration of one transmitter 2 of this embodiment,
2 is a circuit diagram showing the circuit configuration of the main device 1 corresponding to this one transmitter 2, and FIG.
FIG. 2 is a device circuit diagram showing the overall configuration of the device. First, the configuration of the main device 1 will be explained. The main unit 1 uses an alternating current power source (AC100V) as a power source, and has a power supply intake part consisting of an isolation transformer T and a diode bridge DB that take in this alternating current power, and a constant voltage for the output of this power supply intake part to a predetermined voltage. A constant voltage circuit 9 and a constant voltage means 8 are provided.
The constant voltage means 8 described above commonly supplies power to unit circuits 10 ₁ to 10 ₄ which will be described later and correspond to each oscillator 2. Further, as the insulating transformer T, a separate winding type transformer is used to prevent electric shock accidents in the bathroom. The unit circuit 10 corresponding to one transmitter 2 includes a short circuit protection circuit section, a transmission detection section, a notification sound control section 15, a display section 16, a timer circuit section 17, and a notification sound generation section 18. In the following description, the unit circuit 10 ₁ corresponding to the transmission button 6 ₁ shown at the top of the main device 1 in FIG. 2 will be explained as an example. The transmission detection section detects the pressing operation of the transmission button 6 of the transmitter 2, that is, in the case of this embodiment, the current flowing between the two wires when the wire connecting the main device 1 and the transmitter 2 is short-circuited. By detecting this, the operation state of the transmitting button 6 is detected, and is composed of transistors Q ₃ and Q ₄ and resistors R ₁ and R ₂ . The short-circuit protection circuit section prevents the constant voltage means 8 from being destroyed when the transmission button 6 is pressed, and is composed of a transistor Q ₂ , a diode D ₁ , and a resistor R ₃ . The timer circuit unit 17 performs a time-limited operation for a predetermined time from when the transmission detection unit detects that the transmission button 6 has been operated, and the display unit 1
Reference numeral 6 indicates which transmitter 2's transmit button 6 has been operated by lighting up from the time the transmit button 6 is operated until the time limit operation of the timer circuit section 17 is completed. Note that an inverter I for inverting the output of the transistor Q ₃ , a diode D ₂ , a resistor R ₄ , and a capacitor C ₁ are connected between the display section 16 and the transistor Q ₃ .
is provided. The notification sound generator 18 is connected to the call button 6
It emits a notification sound while the button is pressed, and has the function of generating a different notification sound for each room. That is, in order to generate the above-mentioned different notification sounds, the notification sound control unit 15 is provided with a basic oscillation circuit 19, a flicker oscillation circuit 20, etc., and the outputs of the respective oscillation circuits 19 and 20 are combined to generate high-pitched sounds, Low temperatures, their continuous sounds, and intermittent sounds are created and added to the notification sound generator 18. The output of the basic oscillation circuit 19 is applied to the base of a transistor _Q5 , and a response button 21 is inserted in series with this transistor _Q5 .

Next, the configuration of the transmitter 2 will be explained. The transmitter 2 is connected to the main unit 1 by a two-wire non-polar wiring, and a transmit button 6 is connected between these two wires, and a response button 21 connected between the two wires is operated. It is equipped with a buzzer 22 to which the output of the basic oscillation circuit 19 is applied via the transistor Q ₂ when the signal is activated, and a capacitor C ₂ inserted in series with the buzzer 22 to cut off the DC voltage applied between the two wires under normal conditions. ing.

The operation of this embodiment will be explained below with reference to FIG. First, as shown in FIG. 4a, it is assumed that the call button ₆₁ in FIG. 3 is pressed to call a member of a family member who is present at the main appliance 1 side, for example, located in the living room. When the send button 6 ₁ of this transmitter 2 is pressed,
The wires connecting the main device 1 and the transmitter 2 are short-circuited. Due to this short circuit caused by the transmission button 6 ₁ , the current flowing through the resistance R ₁ of the transmission detection section increases. Therefore, the voltage across resistor _R1 increases and the transistor
Q ₄ turns on, and transistor Q ₃ turns on as transistor Q ₄ turns on. At this time, since the output inverted via the inverter I becomes a low level, the indicator lamp 3 corresponding to the transmission button 6 pressed on the display section 16 is turned on. Note that the indicator light 3 of the display section 16 continues to be lit until the timer circuit section 17 completes its time-limiting operation or until the send button 6 or the response button 21 is pressed and the capacitor _C1 is short-circuited. In the notification sound generating section 18, the output of the basic oscillation circuit 19 and the output of the flicker oscillation circuit 20 are mixed and added to the buzzer 5 depending on which transmission button 6 is pressed, and when the transmission button 6 is pressed as shown in FIG. It emits a warning sound only while it is running. A different notification sound can be emitted for each call button 6.

Then, a person in the room where the main device 1 is installed presses the response button 21 after hearing this notification sound. By pressing this response button 21, the output of the basic oscillation circuit 19 is applied to the base of the transistor _Q2 . The output of the basic oscillation circuit 19 applied to the base of the transistor Q ₂ via the transistor Q ₅ is a rectangular wave as shown in FIG. Added to 2. Therefore, in the basic oscillation circuit 19 of the main device 1, the transmitter 2
This allows the buzzer 2 to sound. Note that when the normal transmitting button 6 is not pressed, a constant voltage is applied by the constant voltage means 8 to the series circuit of the buzzer 22 and the capacitor C ₂ , but the DC voltage cut by the capacitor C ₂ causes the buzzer to No voltage is applied to 22. Note that FIGS. 4a to 4f show the case where the response button 21 is pressed after the send button 6 is pressed and before the time limit operation of the timer circuit section 17 ends, and FIGS. After the timed operation ends, press the response button 21.
Indicates when is pressed. First, a case where the response button 21 is pressed before the timer circuit unit 17 ends its time-limited operation will be described. As shown in FIG. 4a, the call button 6
When is pressed, as explained in the first embodiment, a notification sound is emitted as shown in FIG. Then, as shown in figure c, the indicator light 7 of the transmitter 2 lights up, and as shown in figure f, the indicator light 3 on the main device 1 side lights up.
lights up. Then, the main device 1 heard the notification sound.
When the person on the side presses the response button 21, the above-mentioned rectangular wave signal is applied to the transmitter 2, and this signal causes the buzzer 2 to be activated.
2 sounds. Also, when the response button 21 is pressed,
The timer block 17 is reset, and the indicator light 3 is therefore turned off. Although the control circuit for the indicator light 7 on the transmitter 2 side is not shown, it is designed to turn off at the same time as the indicator light 3.

Furthermore, if the response button 21 is pressed after the time limit operation of the timer circuit section 17 has ended, the indicator lights 3 and 7 have already been turned off due to the end of the time limit operation of the timer circuit section 17, so the transmitter 2 side The buzzer 22 only sounds. As described above, in this embodiment, even if the transmitter 2 side is provided with the buzzer 22 that notifies that the response button 21 has been operated, the buzzer 2
2 does not require an oscillation circuit for ringing, and instead of varying the voltage between two wires as in the past to notify that the response button 21 has been operated, the main device 1
Since the output of the basic oscillation circuit 19 is sent directly to the oscillator 2, there is no need for a voltage detection section that detects the voltage between two lines, and the configuration of the oscillator 2 can be simplified, and the number of parts can be reduced. This also reduces the size and cost of the transmitter 2.

[Effects of the Invention] As described above, the present invention includes a main unit installed in a room such as a living room where family gathers, a bathroom, a toilet,
Connect with the transmitter installed in each room such as a child's room or an elderly parent's room with two wires, and
a constant voltage means for applying a constant voltage between the lines; a transmission detection means for detecting the operation of a transmission button of a transmitter connected between the two lines using a current flowing between the two lines; and a transmission detection means. Notifying means for notifying which room the call is in through an output; oscillating means for generating a signal for the notifying signal outputted by the notifying means; and inserted between the transmitting button and the constant voltage means. and a switching element as a short-circuit prevention means to prevent the output of the constant voltage means from being short-circuited when the signal button is operated, and a switching element that acts as a short-circuit prevention means to prevent the output of the constant voltage means from being short-circuited when the signal button is operated. The main unit includes a response button that is operated to apply the output of the oscillation means to the control terminal of the switching element, and when the response button connected between the two lines is operated, the output of the oscillation means is applied to the control terminal of the switching element via the switching element. The oscillator is equipped with a buzzer that is driven by the applied oscillation signal and a capacitor that is inserted in series with the buzzer to cut off the DC voltage that is applied between the two wires under normal conditions. Instead of varying the voltage between the lines to notify that the response button has been operated, the output of the oscillation means of the main device can be sent directly to the transmitter, so that the response button is not operated on the transmitter side. Even if the buzzer is equipped with a buzzer that notifies the user, the buzzer can be driven by the oscillation means of the main unit without the need for an oscillation circuit for the buzzer. Since this is not necessary, the configuration of the transmitter can be simplified, and the number of parts can be reduced, which has the effect of making the transmitter smaller and lower in cost.

[Brief explanation of drawings]

Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is an overall circuit diagram of the main unit of the same, Fig. 3 is a perspective view showing the external appearance of the above, and Fig. 4 is an explanatory diagram of the operation of the same. . 1 is the main device, 2 is the transmitter, 3 and 7 are the indicator lights,
5 and 22 are buzzers, 6 is a transmission button, 8 is a constant voltage means, 19 is a basic oscillation circuit, 21 is a response button, 22 is a buzzer, Q ₂ to Q ₄ are transistors, R ₁ is a resistor, C ₂
is a capacitor.

Claims (1)

[Claims] 1 Connect with two wires between the main unit installed in a room such as the living room where the family gathers and the transmitter installed in each room such as the bathroom, toilet, children's room, or elderly parent's room, a constant voltage means for applying a constant voltage between the two wires; a transmitter detecting means for detecting by a current flowing between the two wires that a transmitter button of a transmitter connected between the two wires is operated; Notifying means for notifying in which room the call is received by the output of the detecting means, oscillating means for generating a signal for the notifying signal outputted by the notifying means, and between the transmitting button and the constant voltage means. A switching element is inserted into the main unit as a short-circuit prevention means to prevent the output of the constant voltage means from being short-circuited when the signal button is operated, and when the above-mentioned notification means is notified of a call by the transmitter, The main device includes a response button that is operated to respond to the oscillation means and applies the output of the oscillation means to the control terminal of the switching element, and when the response button is connected between the two lines and is operated, the oscillation means is activated through the switching element. The oscillator is characterized in that it comprises a buzzer driven by an oscillation signal applied at Announcement unit for communication between rooms.