JPH09167293A - Radio wave disaster alarm device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely know earthquake occurrence and emergency alarm concerning an earthquake and tidal wave by detecting an emergency alarm signal by means of an alarm sensor when the emergency alarm signal predicting a disaster occurrence is issued by radio wave and outputting it as information in voice and light. SOLUTION: When a power source is turned on, a tuning circuit 22, a local call originating circuit 23 and a circuit connecting them to an arithmetic circuit 41 are operated so as to wait the incoming of an emergency alarm signal. When the emergency alarm signal is received and sensed and the signal is outputted from the tuning circuit 22, an discriminating filter 45 discriminates whether the signal is an earthquake signal or tidal wave alarm and outputs its result to the arithmetic circuit 41. The arithmetic circuit 41 turns on/off an alarm light 17 by the signal or an earthquake occurrence signal which is outputted from a vibration sensor 42, outputs a voice signal to a low-frequency amplifier 24 at the same time, issues alarm by voice from a speaker 12 several times and issues information to an audibly handicapped person by a form the person can understand.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless disaster warning device, and in particular, when a disaster prediction warning such as an earthquake or a tsunami is issued by the Japan Meteorological Agency or other related organizations, the people living in the concerned area can receive the warning. The present invention relates to a wireless alarm used in order to make all people aware of it.

[0002]

2. Description of the Related Art Generally, when a disaster such as an earthquake or tsunami occurs or is expected to occur, cable broadcasting is known as a means for publicizing the situation to local residents. This is to attach a speaker to an outdoor public relations tower and transmit information from city halls such as city halls by voice. On the other hand, in recent years, a method has been developed in which an electric wave is transmitted to predict the possibility of an earthquake or tsunami and to warn the public of this.
That is, when an earthquake or a tsunami is expected to occur, an emergency warning signal is transmitted by radio waves.

[0003]

However, cable broadcasting has not necessarily spread nationwide, and it cannot be expected that it will spread quickly, and alarms by cable broadcasting will not be used in recent offices and It is incomplete as a means of transmitting information to houses. In addition, there were problems such as announcements of cable broadcasting often not being heard in areas with high noise levels and when concentrated on work or study.

Further, broadcasting of this kind of disaster warning is carried out not only by wire broadcasting but also by public broadcasting such as NHK. However, the radio alarm does not always mean that many people are always listening to the radio, and the audio alarm such as the above-mentioned cable broadcasting and radio has a problem that the hearing impaired cannot understand.

[0005]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of eliminating the above-mentioned problems, and an alarm sensor for detecting an emergency alarm signal by radio waves and a shake of a housing. And a warning means that operates by a signal from either of the sensors. More specifically, the warning means is a voice information transmission means or a light emission information transmission means. In addition, the alarm sensor is a first warning for the occurrence of an earthquake.
It has a function of discriminating between the seed signal and the second type signal for warning the occurrence of the tsunami, and the warning means has at least two kinds of warning means corresponding to those signals.

[0006]

[Function] When an emergency warning signal for warning the occurrence of a disaster is issued by radio waves, the signal is detected by the alarm sensor, and the warning means is activated to make the human senses feel the occurrence of the disaster. Output as light information. Further, when the vibration sensor detects a larger earthquake than expected, that is, vibration, the warning means is similarly activated to output as voice or light information.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. First, FIG. 1 is an external view of a wireless disaster warning device according to the present invention, and FIG. 2 is an electrical configuration diagram thereof. In the figure, 1
Reference numeral 0 denotes a wireless disaster alarm device, and the disaster alarm device 10 is housed inside a housing 11. The housing 11 has substantially the same appearance function as a well-known portable radio, and a speaker 1 for receiving radio waves.
2, or has a function of taking out as an audio output from the earphone jack 13. That is, tuning dial 1
4, a dial knob 15, a volume control knob 16 with a power switch, etc. are attached.

Reference numeral 17 is a warning lamp for issuing a warning to the user together with the speaker 12. The warning lamp 17 is composed of a light emitting element LED. In this embodiment, the light emitting element L
Three EDs are provided, one of which is the warning light 1
7 and others are used to display the remaining amount of the battery and others. Reference numeral 18 is a power supply jack for connecting the disaster warning device 10 to an external DC power supply, that is, a cigarette socket, a rectifier or the like of an automobile, and 19 is a tuning switch for broadcasting reception provided as necessary.

Next, the electronic circuit 20 as an alarm sensor of the disaster alarm device 10 housed inside the casing 11 will be described. As shown in FIG. 2, the electronic circuit 20 includes a tuning circuit 22 connected to an antenna 21, a local oscillator circuit 23, a low frequency amplifier 24, and a general radio circuit including the speaker 12 and the like. There is. The local oscillator circuit 23 is a phased lock loop circuit P.
Variable frequency part consisting of LL and covering the reception range,
And a fixed frequency part for receiving two types of emergency alert signals, earthquake and tsunami, and includes an intermediate frequency amplifier and a detector (neither shown). As the antenna 21, a loop antenna having a diameter of about 40 cm is used to cope with weak radio waves.

Reference numeral 30 denotes a power supply circuit for driving them. The power supply circuit 30 has a normal power supply 32 supplied via a regulator 31 for step-down rectifying a commercial power supply, and a housing 11.
It includes an emergency power source 33 including a lead secondary battery provided inside, and an external DC power source 34 connected through the power jack 18. Thus, the disaster warning device 10 is always operated by the normal power source 32, and is operated by the emergency power source 33 in a situation where commercial power source is unavailable such as power failure. Further, when the commercial power source is not available, the external DC power source 34 supplied from the portable generator operates.

The disaster warning device 10 has a special circuit 40 for receiving an emergency warning in addition to the above-mentioned general radio circuit.
Is included. That is, the special circuit 40 is mainly composed of the arithmetic circuit 41 including a microprocessor. The arithmetic circuit 41 is connected to the vibration sensor 42 and the emergency warning identification circuit 43, and obtains an earthquake detection signal and an emergency warning signal for notifying an earthquake or a tsunami from the vibration sensor 42 and the speaker 12 or the warning light 17 as the warning means 44. Output emergency warning information to.

Reference numeral 45 denotes an identification filter interposed between the tuning circuit 22 and the identification circuit 43, which is 640 Hz for an earthquake warning output from the tuning circuit 22.
It is provided to discriminate between two signals of 1024 Hertz for tsunami warning. Reference numeral 46 denotes a changeover switch operated by the arithmetic circuit 41, which selectively connects the input side of the low frequency amplifier 24 to the tuning circuit 22 and the arithmetic circuit 41, and is normally switched to the arithmetic circuit 41 side. Has been. Reference numeral 47 is an illumination lamp for illuminating the disaster warning device 10 or the surrounding of the housing 11.

Since the disaster alarm device 10 according to this embodiment is constructed as described above, when the volume control knob 16 is operated to turn on the power, the tuning circuit 22 and the local oscillation circuit 2 are provided.
3, and the circuit connecting them to the arithmetic circuit 41 operates, and stands by for the feeling of the emergency warning signal. When an emergency warning signal is sensed and a signal is output from the tuning circuit 22,
The discrimination filter 45 discriminates whether the signal is an earthquake warning or a tsunami warning, and outputs the result to the arithmetic circuit 41.
The arithmetic circuit 41 blinks the warning lamp 17 in response to the signal or the earthquake occurrence signal output from the vibration sensor 42, and at the same time outputs a voice signal to the low frequency amplifier 24, and the speaker 12 outputs, for example, "earthquake alarm issuance! "..." or "earthquake occurred ...", etc., and sound alerts are issued several times, and information is issued in a form that even deaf people can understand.

After a audible warning is given several times, the arithmetic circuit 41 acts on the local oscillation circuit 23 so that the local oscillation frequency can be received at a specific frequency in the broadcast band, and at the same time, the changeover switch 46 is operated. The input side of the low-frequency amplifier 24 is switched to the tuning circuit 22 side so that the content of the emergency alert can be heard through public broadcasting.

[0015]

According to the disaster warning device 10 of the present invention, an emergency warning for warning the occurrence of an earthquake or tsunami can be surely received, or when an actual earthquake occurs, it can be surely recognized. , When they occur, you can continue to receive earthquake alerts and tsunami information by public broadcasting. Further, the warning transmitted from the disaster warning device 10 can be obtained not only by voice but also by a warning light, so that there is an effect that it can be surely transmitted to a deaf person.

[Brief description of the drawings]

FIG. 1 is an external view of a wireless disaster warning device according to the present invention.

FIG. 2 is an electrical configuration diagram thereof.

FIG. 3 is a circuit diagram showing the power supply unit.

[Explanation of symbols]

10 ・ ・ ・ ・ Disaster warning device 11 ・ ・ ・
Housing 12 ... Speaker (warning means) 13 ...
Earphone jack, 14 ... Tuning dial
15 ... Dial knob 16 ... Volume control knob 17 ...
Warning light (warning means) 18 ... Power jack 19 ...
Tuning switch 20 ・ ・ ・ ・ Electronic circuit (alarm sensor) 21 ・ ・ ・ ・
Antenna 22 ... Tuning circuit 23 ...
Local oscillation circuit 24 ... Low-frequency amplifier 30 ...
Power supply circuit 31 ... Regulator 32 ...
Normal power source 33 ... Emergency power source 34 ...
External DC power supply 40 ... Special circuit 41 ...
Arithmetic circuit 42 ... Vibration sensor 43 ...
Emergency signal identification circuit 44 .... Warning means 45 ....
Identification filter 46 ... Changeover switch 47 ...
Lighting lamp

Claims (4)

[Claims] 1. A warning sensor for detecting an emergency warning signal by radio waves, a vibration sensor for detecting shaking of a housing, and a warning means activated by a signal from either of the sensors. Wireless disaster warning device. 2. The wireless disaster warning device according to claim 1, wherein the warning means is a voice information transmission means. 3. A wireless disaster warning device according to claim 1, wherein said warning means is information transmission means by light emission. 4. The alarm sensor according to claim 1, wherein the alarm sensor has a function of discriminating between a type 1 signal for warning the occurrence of an earthquake and a type 2 signal for warning the occurrence of a tsunami, and the warning means Wireless disaster warning device incorporating at least two types of warning means corresponding to the above signals.