JP2001272474A - Earthquake arrival forecast system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide earthquake arrival information in which a receiver position is reflected to various information media by a method wherein accurate operation detection processing results of earthquake data composed of earthquake intensity, position and time of a hypocenter obtained from outputs of seismometers arranged in plural portions at intervals of one to several km are transmitted, position setting is performed manually when a receiving point is a fixed position like a house, automatic position setting like GPS is performed in the case of a portable/movable position, and results of operation of the received earthquake data are obtained by using an hour meter together and converted in to earthquake arrival forecast information. SOLUTION: This earthquake arrival forecast system uses the seismometer and a unified detector capable of wireless transmission of each position and time information which are arranged in the vicinity of a hypocenter where an earthquake is generated, receives and processes data of the hypocenter and earthquake intensity through a center, performs alarm and information display with various kinds of information media, informs arrival of an earthquake, and makes it possible for receivers to take refuge in a safe place.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to seismic intensity, position, and time data obtained from three to five seismometers arranged at intervals of one to several kilometers. Handle. Furthermore, when this earthquake data is transmitted over a wide area and received, a high-speed operation that outputs the direction of the arriving wave at the receiving point, the seismic intensity and the time elapsed since the alarm or the time elapsed since the warning, etc. This is the field of measurement measurement processing.

[0002]

2. Description of the Related Art In a conventional earthquake notification system, the Japan Meteorological Agency,
Past earthquake information is transmitted by the earthquake research institutes, etc., but it is difficult to apply this information to the system of the present invention due to rules and distribution. Therefore, this system is easily constructed with a portable detector to obtain the seismic data of the current direction.

[0003]

Next, it is required to transmit this earthquake data to perform arithmetic processing, alarming, and reporting at an arbitrary receiving point in a wide area, but this has not been implemented conventionally.
For example, broadcasting is a very convenient medium that can be received anywhere in a wide area. However, even if seismic data is transmitted only by normal reception, the same transmission content remains in the broadcasting area.

[0004]

In order to solve the above-mentioned problems, an earthquake arrival prediction system according to the first aspect of the present invention provides a method for manually setting a position when a receiving point is a fixed position such as a home, and a mobile terminal or a mobile position when the receiving point is a mobile / moving position. Obtain the result of the calculation with the earthquake data received by the automatic position setting such as GPS and using the time meter together,
The information was converted to earthquake arrival prediction information and output.

[0005] As the earthquake arrival prediction output, it is necessary to operate only when a strong earthquake with a seismic intensity of 5 or more is expected.
First, an alarm is issued, and immediately, a comment (in the form of voice, text, or image) of the expected direction of arrival, estimated seismic intensity estimated from the distance, estimated arrival time, and time is selected and added.

[0006] In this system, a moving image of a scene near the epicenter can be transmitted by installing a wireless remote control television camera in the detector. Therefore, if broadcast as news, the receiver can receive information other than data quickly. It has features that can properly assist emergency response.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

[0008]

FIG. 1 shows an entire earthquake arrival prediction system according to the present invention.

FIG. 1 shows the case of three cylinders of detectors A, B and C. 1 installed relatively close to the epicenter
The outputs of the detectors 1, 2, and 3 at intervals of up to several kilometers transmit detection data through a wireless line or the like, and are received and processed by the detection center 4. In this case, earthquake data for predicting the seismic intensity and the time of the earthquake occurrence from the hypocenter location and distance based on the geometric principle of triangulation is output. If the number of detectors is not three but four or more, the accuracy and reliability are increased, but if the number is increased, the economic efficiency is inferior. In the figure, * indicates the position / clock information addition function.
It is an important factor for epicenter determination.

[0010] Earthquake data is received by individuals or groups via an AM / FM broadcast station 5, a TV broadcast station 6, a telephone station 7, a high-speed Internet provider 8, a dedicated line terminal 9, and the like. In general, when the reception is in operation, the present system can exhibit the maximum effect. However, an emergency response device with a short waiting time for starting up the device may be used. The * in the figure indicates the location / clock information addition function, which alerts and reports the direction of arrival from the epicenter to the receiving point, the estimated seismic intensity, and the arrival time and time.

FIG. 2 shows an example of a seismic wave detector and a detection processing center in the system of the present invention.

In addition to the seismometer 1a, the position information setting 1b,
In addition to the clock 1c, a remote control monitoring TV camera 1d can be provided. These digital signal outputs are connected to the data combiner 1
e, for example, a spread spectrum communication radio transmission apparatus 1
f to three simple points such as spread spectrum communication and C
A DMA system or the like is transmitted at the same frequency in real time. It is considered that the so-called ISM band of 2.4 GHz and 5 GHz is practically good as this frequency. The reason is,
This is because not only data but also video signals can be transmitted over a wide band, and wireless remote control is also possible (Japanese Patent Application No. Hei 10
710002). The detection processing center communicates with the spread spectrum communication wireless transmission device 4a, and if necessary, performs remote operation 4b of the attached camera while watching the monitoring image 4c,
The detection data of the location is performed by the detection data processing CPU 4d and transmitted to each station and the data terminal. Earthquake detector power 1
g, 4f are uninterrupted 1h, 4g, and in some cases, a solar cell 1i is provided to improve reliability.

FIG. 3 shows a multimedia receiver via a broadcasting station in the system of the present invention and an alarm / reception by an additional function thereof.
An example of a report is shown.

FIG. 3 shows the case of AM / FM broadcast and TV broadcast. The receiver 10a demodulates the seismic data relating to the epicenter obtained by the data separation / selection 10b from the AM / FM broadcast station 5 by the receiver 10a, and sets the position information 10c and the clock 10d.
Are collated with each other and an arrival prediction / warning 10f and a voice notification or character display 10g are performed through an earthquake data calculation processing 10e.

Similarly, in the TV broadcasting station 6, the earthquake data demodulated by the receivers 11a to 11b and the position information setting 11c,
The arrival prediction alarm 1 from the clock 11d through the arithmetic processing 11e
If, a super report 11h is performed on the voice report 11g and the image.
If a remote control 1 surveillance TV camera is installed, a local image of the characters can be seen as a result.

According to the present invention, the following effects can be obtained by the configuration described above. Until now, earthquakes have been treated as inevitable natural disasters. Until now, the occurrence of an earthquake was only reported after the fact and had little meaning from the viewpoint of avoiding damage. In addition, the science of earthquake prediction has not progressed much, and it is expected that earthquake information will be transmitted instead of the fine-grained typhoon information, but there has been no appropriate method. However, if the strong epicenter that occurred can be handed down from a certain point, the arrival time, direction, seismic intensity, etc. will be notified with warnings and displays, and unless it is a peculiar place such as the epicenter or a direct earthquake, It is possible to move to a safe position inside the building or to an evacuation site, and this system can minimize damage as much as possible. Although I wrote the advantages above, it is clear that this system is powerless against a direct earthquake. For the former, a detector must be buried deep underground to perform three-dimensional detection, which is limited to special cases. In the latter case, the arrival prediction area can be secured only when the detector group and the processing center are arranged in at least three directions.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an earthquake arrival prediction system of the present invention.

FIG. 2 shows an embodiment of a seismic wave detector and a detection center that outputs seismic data of an epicenter located at three places in the system of the present invention.

FIG. 3 shows an embodiment of the system of the present invention in a broadcast medium for a wide area.

[Explanation of symbols]

 1-3 Detector 4 Reception / detection data processing 5 AM / FM broadcast station 6 TV broadcast station 7 Telephone station data terminal 8 High-speed Internet provider 9 Dedicated line data terminal 10 AM / FM receiver 11 TV receiver 12 Navigation / AM / FM / TV receiver 13 Telephone (including mobile phone / PHS) 14 FAX 15 Internet terminal 16 Mobile terminal 17 Receiving terminal

Claims (1)

[Claims] 1. A detector for transmitting seismometer output and output to which position / clock information is added at three or more locations, and receiving and detecting data at a center to process the seismic data (the seismic intensity of the epicenter, Position and time), and each receiver was instantaneously operated via a broadcasting station, telephone station, data terminal, the Internet, etc. for transmitting the data over a wide area, and the position and clock of the receiver were used. An earthquake arrival prediction system characterized in that an emergency alert and voice / text / image are reported to an individual or a group based on the calculation result and a required preparation period is notified in advance.