JPS61260394A - Information apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Technical Field> The present invention relates to comprehensive disaster prevention and crime prevention in a house, which uses weak radio waves to issue an alarm based on signals from abnormality detectors installed in various parts of the house. The present invention relates to an information device for the purpose of.

<Prior art> Conventionally, this type of information device has a main unit 113 that issues an alarm based on abnormality detection signals from a plurality of abnormality detection transmitters 1fiB, and an abnormality signal and audio signal that are transmitted via the main unit and a power line. The base unit and the slave unit make calls and send and receive signals via the power line.
Since the carrier wave frequencies of the voice signal and the abnormal signal are the same, there is a drawback that the abnormal signal cannot be transmitted or received during a telephone call, or conversely, a telephone conversation cannot be made while the abnormal signal is being transmitted or received.

FIG. 1 is a basic system diagram of a home information device. To explain according to this diagram, abnormality detection sensors A are installed at various locations in each building, and the abnormality detection sensors A are, for example, fire sensors 1 and , an intrusion sensor 4 that detects intrusion abnormalities by detecting the opening and closing of doors 2 and windows 3, a gas sensor 5 that detects gas leaks, a water leak sensor 6, and a bath sensor 7 that monitors the water level and temperature of the bath. It consists of and so on. These sensors A are connected by wire to a fire transmitter 8, an intrusion transmitter 9, a gas transmitter 10, a water leak transmitter 11, and a bath transmitter 12, respectively, and when sensor A detects an abnormality, an abnormality detection signal is sent. is configured to transmit to the base unit (alarm device) 13 by radio waves.

That is, various abnormality detection sensors A and various transmitters 8° to 1
2 and transmission for abnormality detection 8! B is constructed.

The li iso 13 has a function of issuing an alarm in response to an abnormal signal, lighting an abnormal state display lamp 14, and transmitting a signal to the child fi 15 via the power line 22. The handset 15 that has received the signal from the base unit 13 also has a function of issuing an alarm in response to the abnormal signal.

That is, the child W115 is the parent It! If it is installed in a place far away from 13, even children 11 to 15 will be able to know when an abnormality occurs. Furthermore, the parent FI 13 and the handset 15 each have a function of inter-7 on-call via the power line.

In the above system, as shown in Figure 2, the parent 13
and child t4!15, call button 1 for making a call.
6.17, abnormal signals and audio signals are electric power j! There are monitor lamps 18 and 19 on top of 22 that turn on, and volume control knobs 20 and 21 that adjust the volume.
If you want to make a call, press call button 16 or 17 on the sending side.
Press to talk. The receiving side presses the call button 16 or 17 after the monitor lamp 18 or 19 goes out to speak, that is, it is a breath talk method and not a simultaneous call method.

For example, child I! If you want to talk while talking on 15, press call button 1.
When 6 is pressed, a calling signal code is first sent, and both the handset 15 and the parent Wi 13 ring. Then, while holding down the call button 16, talk. At that time, both monitor lamps 18 and 19 are lit, and when one episode is finished, the call button 16 is released. At that time, monitor lamp 1
8.19 will disappear. The parent Wi 13 presses the call button 17 to start talking after confirming that the child unit 15 has finished talking and the monitor lamp 19 has gone out. After that, the above process is repeated.

Also, as shown in Fig. 3, the child @15 has a continuous talk switch 23
is provided, and when the continuous talk switch 23 is turned on,
Child! Parent f continuously without pressing the call button 16 of Is.
Send audio to i13. Place the handset 15 in a room with a baby, a store, or a sick person's room, and turn the continuous talk switch 23 to [ON].
If you set it to , you can monitor it with the base unit 13.

However, in the past, if the continuous talk switch 23 was set to "on", when an abnormality occurred, the audio was unilaterally sent from the handset 15 to the base unit 13, so the abnormality signal could not be sent to the handset 15. It disappears.

Although it is actually a continuous call, it is sent continuously for several seconds, and the parent W.
A period of time (about 1 to 2 seconds) during which 113 does not transmit an abnormal signal and children 8 to 15 can receive it is provided. Therefore, in the parent FI 13, the audio from the handset 15 is interrupted for 1 to 2 seconds, making it difficult to hear. Also, even during a call, the handset 1
When terminal 5 is talking, it cannot transmit a signal to handset 15.

FIG. 6 is a block diagram of the conventional parent fi 13 or child 8! 15. When transmitting audio, the audio 29 entering the microphone 24 is amplified by the microphone amplifier 25, and the FM modulation circuit 26
The carrier wave signal 27 modulated by the power source passes through the tuning circuit 28, and the carrier wave signal 27 is superimposed on the AC power source and transmitted. When transmitting the digital signal 31 as an abnormal signal, the digital signal 31 corresponding to the abnormal state is sent to the microcomputer (
(hereinafter referred to as a microcomputer) 30, is modulated once in a digital signal modulation circuit 32 to distinguish it from audio, and the digital signal modulation signal 33 passes through an FM modulation circuit 26 and a tuning circuit 28, and is superimposed on the AC power source and transmitted. Ru. When receiving an audio signal, the audio signal carrier wave 34 superimposed on the AC power supply passes through the tuning circuit 28, and the audio demodulated by the FM demodulation circuit 35 is amplified by the speaker amplifier 36, and is outputted from the peak power 37. . When receiving the digital signal 31, the digital signal modulation signal 33 that has passed through the tuning circuit 28 and the FM demodulation circuit 35 is demodulated by the digital signal modulation circuit 38, and the digital signal 31 is taken into the microcomputer 30.

As mentioned above, since the carrier wave 34 superimposed on the AC power source uses the same carrier frequency when transmitting and receiving audio and when transmitting and receiving the digital signal 31, an abnormal signal is generated during a call or continuous talk. There was a drawback that it was not possible to send and receive messages.

In addition, in the conventional method, when demodulated by the FM demodulation circuit 35, the abnormal signal is sent to the digital signal modulation circuit 32 in order to distinguish between the audio signal and the abnormal signal. A modulated signal 33 had to be created to separate the audio signal and the abnormal signal. Therefore, the digital signal demodulation circuit 33 has a high frequency that cannot be outputted by the microcomputer 30, and it is necessary to provide an external digital signal modulation circuit 32 and a digital signal demodulation circuit 38.

Purpose 〉 Therefore, an object of the present invention is to provide an information device that can make calls and send and receive abnormal signals without affecting each other by separating the carrier wave signal of the audio signal and the carrier wave signal of the abnormal signal. It is something.

<Embodiment> Hereinafter, an embodiment of the present invention will be described mainly based on FIGS. It consists of a parent device 8!13 that issues an alarm, and a slave device 15 that transmits and receives abnormal signals and audio signals to and from the parent device via a power line.
13 and child W115 are provided with an audio signal transmitting/receiving circuit and an abnormal signal transmitting/receiving circuit E, and the carrier wave signals of H in both circuits are configured with different frequencies.

The audio signal transmitting/receiving circuit E includes a -th FM demodulating circuit 39 for audio, a -th FM modulating circuit 40 and a first tuning circuit 41, and the abnormal signal transmitting/receiving circuit E includes a second FM demodulating circuit 4.
2, a second FM modulation circuit 43 and a second tuning circuit 44.

The output end of the second FM demodulation circuit 42 is directly connected to the microcomputer 30, and the output end of the microcomputer 30 is directly connected to the second FM modulation circuit 43.

Further, input/output lines of the first tuning circuit 41 and the second tuning circuit 44 are connected to the power line 22. In addition, in FIG. 3, the channel switch 45 selects the carrier wave 3 superimposed on the AC power
This is to switch the frequency of 4. The structure of the pond is the same as the conventional one, and since the structure was explained in the <Prior Art> section, the description thereof will be omitted.

In the above configuration, since the abnormal signal transmitting/receiving circuit E and the audio signal transmitting/receiving circuit are provided separately, if the audio carrier signal and the digital signal carrier signal are separated and different carrier frequencies are used, they will affect each other. You can send and receive without any trouble.

That is, even during a call or continuous talk, if an abnormality is detected, an abnormality signal can be transmitted and received from the parent 1fi 13 to the slave W 115 and from the handset 15 to the base unit 13 regardless of the call.

Furthermore, by separating the carrier wave signal of the voice and the carrier wave signal of the abnormal signal, the frequency components of the digital signal modulation signal 33A can be configured within the audible frequency band.
It is possible to output or input the signal directly from the microcomputer 30 without providing an external digital signal modulation circuit 32 and digital signal demodulation circuit 38.

Furthermore, by using the power line 22 to use the carrier wave signals of the audio signal and the abnormal signal at different frequencies, it is possible to configure the system with independent circuits, and the control method becomes simple. In addition, various signals can be sent and received even during a call, and it is easy for the parent 8!13 to perform centralized control of devices using the power line 22.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

<Effects> As is clear from the above description, the present invention provides a l! In the information device, the base unit and the slave unit are provided with an audio signal transmitting/receiving circuit and an abnormal signal transmitting/receiving circuit; This relates to an information device characterized in that the carrier wave signals of are composed of different frequencies.

Therefore, according to the present invention, since the abnormal signal transmitting/receiving circuit and the audio signal transmitting/receiving circuit are provided separately, if the audio carrier signal and the digital signal carrier wave signal are separated and different carrier frequencies are used, they will not affect each other. Even during a call or continuous talk, if an abnormality is detected, abnormal signals can be sent and received from the base unit to the handset, and from the handset to the base unit, regardless of the call. There are excellent effects that can be achieved.

[Brief explanation of the drawing]

Figure 1 is a system configuration diagram of the home information device, Figure 2 is a front view showing the relationship between the base unit and slave unit, Figure 3 is a side view showing the continuous talk switch of the slave unit, and Figure 4 is the invention of the present invention. Configuration block diagram of a parent device or a slave device among information devices showing an embodiment of the present invention, No. 5
The figure is a time chart showing the calling operation state, Figure 6 is a block diagram of the configuration of the conventional parent FI 13 or handset 15, and Figure 7
The figure is a time chart showing a conventional paging operation state. A: Abnormality detection sensor, B: Abnormality detection transmitter, D: Audio signal transmission/reception circuit, E: Abnormal signal transmission/reception circuit, 13: Base unit, 15: Child unit, 16.17: Call button, 18.19
: Monitor lamp, 20.21: Volume control knob, 22
: power line, 39: -th FM demodulation circuit, 40: -th FM modulation circuit, 41: @-tuning circuit, 42: second FM demodulation circuit, 43: second FM modulation circuit, 44: second tuning circuit.

Claims (1)

[Claims] In an information device comprising a base unit that issues an alarm based on an abnormality detection signal from an abnormality detection transmitter, and a slave unit that transmits and receives abnormal signals and audio signals to and from the base unit via a power line, the base unit and slave unit 1. An information device characterized in that an audio signal transmitting/receiving circuit and an abnormal signal transmitting/receiving circuit are provided in the machine, and carrier signals of both circuits are configured at different frequencies.