JP2007025962A - Information providing system, disaster prevention information providing system and its information providing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disaster information providing system for accurately showing a remaining time until a natural phenomenon such as earthquake arrives. <P>SOLUTION: This information providing system is provided with: measuring terminals 81 to 8n for detecting and transmitting a natural phenomenon; a first data processor 10 for calculating the occurrence spot of the natural phenomenon to extract a region where the occurrence of the natural phenomenon is predicted, and for predicting the arrival prediction time of the natural phenomenon in the region to prepare it as emergency disaster information; a second data processor 20 for classifying the emergency disaster information for each region, and preparing and transmitting the disaster prevention information of each region; a standard radio wave emitting station 70 having information showing Japanese standard time for transmitting a standard radio wave; and a portable telephone network 30 for receiving disaster prevention information from the second data processor 20, and for transmitting the Japanese standard time shown by the standard radio wave. Portable information terminals 61 to 6n receive the disaster prevention information and the Japanese standard time, and calculate a remaining time until the natural phenomenon arrives the region. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disaster prevention information providing system, and more particularly to a method for transmitting disaster prevention information to a portable information terminal.

  Conventionally, the Japan Meteorological Agency and Meteorological Observatory have issued various warnings and warnings in order to prevent damage from debris flows, floods, and tsunamis associated with natural phenomena such as typhoons and earthquakes.

  For example, if a tsunami is predicted to reach a certain coast or area when an earthquake occurs, the Japan Meteorological Agency will issue a tsunami warning or tsunami warning in advance in preparation for the possibility of the occurrence of a tsunami, as well as earthquake warnings. I'm out.

  In addition, a mechanism that uses the Meteorological Agency's emergency earthquake information to transmit information to residents, such as a seismic intensity of 4 in a specific area after 20 seconds before shaking at a location away from the epicenter, is practical. It is going to be made.

  It is clear that the damage from earthquakes or tsunamis can be considerably reduced if natural phenomenon prediction information or disaster prevention information such as emergency earthquake information and tsunami warnings can be transmitted to residents and local governments in advance.

  Here is an explanation of emergency earthquake information. Emergency earthquake information is one of the earthquake information sent by the Japan Meteorological Agency. When earthquakes occur, using the observation data near the epicenter, the epicenter, magnitude of the earthquake, Information that immediately estimates and communicates the seismic intensity of each location and the system that uses them.

  On the other hand, portable information terminals are considered to be the most effective means for transmitting disaster prevention information to residents in advance. When it is assumed that disaster prevention information is transmitted to the portable information terminal, there are two methods for a person to recognize the disaster prevention information.

  First, in addition to the content of the expected natural phenomenon (for example, seismic intensity and tsunami height), the time when the natural phenomenon is estimated to be notified is notified, and the time when the natural phenomenon is estimated to reach and the portable information This is to compare the time of the terminal clock (or wristwatch, etc.) and recognize the time to reach the natural phenomenon.

  The other is to notify the time until the natural phenomenon occurs in addition to the content of the expected natural phenomenon, and recognize the time until the natural phenomenon arrives by displaying on the portable information terminal. In other words, it is important to clearly know what natural phenomenon will arrive after how many seconds from now.

  Taking an earthquake as an example, the time it takes for an earthquake to reach the place where the inhabitants are located is generally shorter as the seismic source is closer, and generally the larger the earthquake is and the closer the epicenter is, the larger the seismic motion is. Occurs.

  Therefore, it is clear that the closer the epicenter is, the more accurately it is necessary to convey to the inhabitants the time at which the shaking is estimated to reach or the time until the shaking arrives.

  There has been proposed a disaster information service system including a disaster management server that processes disaster information indicating that a disaster has occurred or that there is a risk that a disaster will occur, and a terminal device that receives provision of the disaster information (Patent Document) 1).

  In addition, by generating alarm information that warns of the arrival of an earthquake by detecting the first P wave motion of the earthquake, by transmitting this alarm information to businesses and individuals via any network such as the Internet or public network, There has been proposed an earthquake warning system capable of stopping human damage and physical damage to a minimum (see Patent Document 2).

In addition, using a seismometer located in the vicinity of the earthquake source and an integrated detector that can wirelessly transmit each position and time information, the seismic source and seismic intensity data are received and processed via the center, and alarms and information are provided by various information media. There has been proposed an earthquake arrival prediction system that displays and reports the arrival of an earthquake so that the recipient can safely evacuate to an evacuation site (see Patent Document 3).
JP 2002-245579 A JP 2001-307265 A JP 2001-272474 A

  However, in the disaster information service system and the earthquake warning system, when disaster prevention information is provided to the portable information terminal, there is a problem that the remaining time until the predicted disaster arrival time cannot be accurately transmitted to the portable information terminal user.

  For this reason, users of portable information terminals cannot obtain disaster prevention information in advance, and there is a problem that residents may encounter disasters.

  In addition, even when the time when an earthquake is predicted to be reached by the earthquake arrival prediction system is accurately transmitted to the portable information terminal, the time display on the clock or wristwatch of the portable information terminal is not necessarily accurate. There was a problem of not being able to recognize the exact time.

  Furthermore, each mobile information terminal has an individual clock, and the time indicated by each clock does not exactly match, so there is a problem that the time until the earthquake reaches differs for each mobile information terminal. .

  Accordingly, an object of the present invention is to provide a disaster prevention information providing system that can accurately indicate the remaining time until a natural phenomenon such as an earthquake arrives.

  In order to achieve the above object, when the first invention detects the first event, the first invention determines the occurrence location and the time until the occurrence of the second event predicted to occur from the detected first event. It is an information provision system that requests and reports the results.

A second invention is a disaster prevention information providing system that detects the occurrence of a natural phenomenon such as an earthquake or a typhoon and reports the arrival of the natural phenomenon to a portable information terminal,
Receiving the detection result of the natural phenomenon detected by the measuring terminal, and creating and transmitting emergency disaster information including an area where the natural phenomenon is expected to affect and an expected arrival time of the area; A data processing device;
Second data processing that receives the emergency disaster information transmitted from the first data processing device, generates disaster prevention information for each region from the emergency disaster information, and transmits the disaster prevention information for each region Equipment,
The disaster prevention information is received from the second data processing device, the disaster prevention information is transmitted to the portable information terminal, the standard radio wave transmitted from the standard radio wave emission station is received, and the standard time indicated by the standard radio wave is received. A mobile phone network for transmitting the mobile information to the mobile information terminal,
The mobile information terminal receives the disaster prevention information and the Japan Standard Time from the mobile phone network, and until the natural phenomenon reaches the area from the expected arrival time indicated by the disaster prevention information and the Japan Standard Time It is a disaster prevention information provision system that calculates the remaining time.

3rd invention is the disaster prevention information provision system as described in 2nd invention,
In the disaster prevention information provision system according to claim 2,
The portable information terminal
The disaster prevention information is received, and by receiving the disaster prevention information, the mobile phone network is requested to transmit the Japan Standard Time indicated by the standard radio wave, and the mobile phone network transmitted in response to the request. Information transmission / reception means for receiving Japan Standard Time;
Storage means for storing the disaster prevention information;
Control means for calculating the remaining time until the natural phenomenon reaches the area according to the predicted arrival time of the natural phenomenon described in the disaster prevention information received by the information transmitting / receiving means and the Japan Standard Time;
Display means for displaying the disaster prevention information and the remaining time until the natural phenomenon reaches;
It is equipped with.

4th invention is the disaster prevention information provision system as described in 2nd invention,
The mobile phone network is
Information receiving means for receiving the disaster prevention information transmitted by the second data processing device;
A time receiving means for receiving the standard radio wave;
Clock means for correcting the time according to the Japan standard time indicated by the standard radio wave received by the time receiving means, and indicating the corrected time;
Information transmitting means for transmitting the Japan Standard Time and the disaster prevention information to the portable information terminal.

5th invention is the disaster prevention information provision system as described in 2nd invention,
The second data processing device includes:
Receiving means for receiving the emergency disaster information;
Storage means for storing address information corresponding to the area for transmitting the disaster prevention information to the area;
Comparing the disaster prevention information with the address information, obtaining the address information corresponding to the area, and calculating the disaster prevention information for each address information;
Transmission means for transmitting the disaster prevention information created by the arithmetic processing means.

A sixth invention is a disaster prevention information providing system that detects the occurrence of a natural phenomenon such as an earthquake or a typhoon and reports the arrival of the natural phenomenon to a portable information terminal,
A first data processing device that receives the detection result of the natural phenomenon detected by the measurement terminal, and creates and transmits emergency disaster information including an area where the natural phenomenon extends and an expected arrival time of the area;
The emergency disaster information transmitted from the first data processing device is received, the emergency disaster information is classified for each region, and disaster prevention information for each region is created. A second data processing device to transmit;
A mobile phone network that receives the disaster prevention information from the second data processing device and transmits the disaster prevention information to the portable information terminal;
The mobile information terminal receives the disaster prevention information from the mobile phone network, receives a standard radio wave transmitted from a standard radio wave emission station, the expected arrival time indicated by the disaster prevention information, and the standard radio wave indicated by the standard radio wave It is a disaster prevention information provision system that calculates the remaining time from the Japanese standard time until the natural phenomenon reaches the area.

7th invention is the disaster prevention information provision system as described in 6th invention,
The portable information terminal
Information receiving means for receiving the disaster prevention information transmitted from the mobile phone network;
Time receiving means for receiving the standard radio wave transmitted from the standard radio wave emission station;
Storage means for storing the disaster prevention information;
Control means for calculating the remaining time until the natural phenomenon reaches the area based on the predicted arrival time of the natural phenomenon described in the disaster prevention information received by the information receiving means and the Japanese standard time indicated by the standard radio wave When,
Display means for displaying the disaster prevention information and the remaining time until the natural phenomenon reaches;
It is equipped with.

The eighth invention is the disaster prevention information providing system according to the sixth invention,
The mobile phone network is
Information receiving means for receiving the disaster prevention information transmitted by the second data processing device;
Information transmitting means for transmitting the disaster prevention information to the portable information terminal.

A ninth invention is the disaster prevention information providing system according to the sixth invention,
The second data processing device includes:
Receiving means for receiving the emergency disaster information;
Storage means for storing address information corresponding to the area for transmitting the disaster prevention information to the area;
Comparing the disaster prevention information with the address information, obtaining the address information corresponding to the area, and calculating the disaster prevention information for each address information;
Transmission means for transmitting the disaster prevention information created by the arithmetic processing means.

A tenth aspect of the invention is an information provision method for a disaster prevention information provision system that detects the occurrence of a natural phenomenon such as an earthquake or a typhoon and reports the arrival of the natural phenomenon to a portable information terminal,
Receiving the detection result of the natural phenomenon detected by the measurement terminal, and creating and transmitting emergency disaster information including an area where the natural phenomenon extends and an expected arrival time of the area;
Receiving the emergency disaster information, classifying the emergency disaster information for each region to create disaster prevention information for each region, and transmitting the disaster prevention information for each region;
Receiving the disaster prevention information, transmitting the disaster prevention information, receiving a standard radio wave transmitted from a standard radio wave emission station, and transmitting the Japanese standard time indicated by the standard radio wave to the portable information terminal, And
The disaster prevention information providing system that receives the disaster prevention information and the Japan Standard Time and calculates the remaining time until the natural phenomenon reaches the area from the estimated arrival time indicated by the disaster prevention information and the Japan Standard Time. Information provision method.

An eleventh aspect of the invention is an information provision method for a disaster prevention information provision system that detects the occurrence of a natural phenomenon such as an earthquake or a typhoon and reports the arrival of the natural phenomenon to a portable information terminal,
Receiving the detection result of the natural phenomenon detected by the measurement terminal, and creating and transmitting emergency disaster information including an area where the natural phenomenon extends and an expected arrival time of the area;
Receiving the emergency disaster information, classifying the emergency disaster information for each region to create disaster prevention information for each region, and transmitting the disaster prevention information for each region;
Receiving the disaster prevention information and transmitting the disaster prevention information; and
Receiving the disaster prevention information, receiving a standard radio wave transmitted from a standard radio wave emission station, the natural phenomenon in the region from the expected arrival time indicated by the disaster prevention information and the Japan standard time indicated by the standard radio wave It is an information provision method of the disaster prevention information provision system that calculates the remaining time until it reaches.

  In the disaster prevention information provision system, the first data processing device extracts the area where it is estimated that this earthquake will propagate to other areas based on information such as the seismic intensity of the earthquake detected by the measuring terminal. In addition, emergency earthquake alerts are output that indicate the magnitude and intensity of earthquakes in this area.

  This emergency earthquake information is distributed to each region by the second data processing device, and the disaster information related to each region is assigned to each address from the second data processing device in correspondence with the address information assigned to each region. Is sending.

  The disaster prevention information is transmitted from the second data processing device to a portable information terminal such as a cellular phone via the cellular phone network, and the portable information terminal receives the disaster prevention information.

  Here, when the mobile phone network receives the standard radio wave and transfers it to the portable information terminal using a communication means different from the standard radio wave, the mobile information terminal that has received the disaster prevention information has a function of receiving the standard radio wave. Even if not, the portable information terminal can obtain the Japanese standard time indicated by the standard radio wave.

  The mobile information terminal uses the standard time transmitted from the mobile phone network to calculate the remaining time from the expected arrival time of the natural phenomenon (for example, earthquake shake) posted in the disaster prevention information to the arrival of the natural phenomenon. This remaining time is calculated and displayed on the portable information terminal.

  In addition, if the mobile information terminal can receive standard radio waves directly, for example, there is no need to request Japan Standard Time from the mobile phone network, so the amount of traffic on the mobile phone network temporarily increases when reporting disaster prevention information. Even in such a situation, it is possible to receive Japan Standard Time using standard radio waves without placing a burden on the communication network between the cellular phone network and the portable information terminal.

  The disaster prevention information provision system uses this Japan Standard Time to calculate the remaining time until the mobile information terminal arrives at the arrival of the natural phenomenon, and displays this remaining time on the mobile information terminal, so that the time until the arrival of the natural phenomenon is reached. It is an information provision system that grasps accurately.

  This remaining time is displayed when an earthquake arrives when the content of the natural phenomenon indicated by this disaster prevention information occurs within a short period of time after receiving provision of disaster prevention information such as the arrival of an earthquake. Compared to displaying the estimated time, the display is intuitive and easy to understand.

  Such a display is a display that is difficult for the user of the portable information terminal to misread, and the user of the portable information terminal who has viewed the display content is using the fire in the room for a short time in preparation for the arrival of the earthquake. It is a reporting system that can take measures such as erasing or evacuating from a building before an earthquake occurs.

  According to the present invention, it is possible to obtain a disaster prevention information providing system that can accurately indicate the remaining time until a natural phenomenon such as an earthquake arrives.

  Embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  The present invention provides an information providing system that, when a first event is detected, obtains an occurrence location and time until occurrence of a second event that is predicted to occur from the detected first event, and reports the result It is.

  For example, natural phenomena such as earthquakes and typhoons are familiar as examples of the first event. In the event of an earthquake that is a kind of natural phenomenon, it is known from the first event that this earthquake has occurred that the epicenter and the magnitude of the earthquake can be specified. From the identification, it is possible to obtain the area where the earthquake shakes are enlarged, the seismic intensity of the area, the arrival time of the shake to the area, and the like.

  If the arrival time of shaking to a certain area is obtained, it is also possible to obtain the time until the occurrence of shaking due to an earthquake by comparing this with the exact time.

  In this way, from the earthquake that is the first event, find the location where the shaking of the earthquake that is the second event expands and then shakes, find the time until the occurrence of the shake at this location, An information providing system for reporting the result is obtained.

  This information provision system has a wide range of applications and is effective as a disaster prevention information provision system for natural phenomena.

  FIG. 1 is a block diagram illustrating a configuration example of the disaster prevention information providing system according to the present embodiment.

  Here, natural phenomena handled by the disaster prevention information provision system will be explained using an earthquake as an example, a seismometer will be used as a measurement terminal to detect earthquakes, the location of the earthquake will be represented by the epicenter, and the magnitude of the earthquake will be represented by a magnitude value. I will do it.

  Referring to FIG. 1, the disaster prevention information provision system collects observation data from the seismometers 81 to 8n and seismometers 81 to 8n at each observation point and processes the data by processing the data. As a first data processing device for creating a disaster prevention information to be provided to a portable information terminal based on emergency earthquake information from the earthquake early warning server 10 Information providing server 20, mobile phone network 30 for providing disaster prevention information created by information providing server 20 to a portable information terminal, and portable information terminals 61 to 61 receiving disaster prevention information transmitted from mobile phone network 30 6n and a standard radio wave emission station 70 that informs Japan Standard Time to the Earthquake Early Warning Server 10, the cellular phone network 30, or the portable information terminals 61 to 6n. .

  The earthquake early warning server 10 is a server that generates and provides emergency earthquake information provided by the Japan Meteorological Agency, for example. Data on the ground motion measured by the seismometers 81 to 8n installed at the seismometers in each region is collected, and data processing is performed from the measurement results of the seismometers 81 to 8n. Calculate the epicenter and magnitude (magnitude) of the earthquake and use this result to estimate the predicted seismic intensity for each region and the estimated arrival time of the shaking for each region, and extract the region where the earthquake is predicted to occur The data processing results are collectively transmitted to the information providing server 20 as emergency earthquake information.

  The earthquake early warning server 10 receives the standard radio wave transmitted from the standard radio wave emitting station 70 when performing data processing, and obtains the correct Japan standard time, and the information handled by the emergency earthquake early warning server 10 includes time information. In some cases, it is an accurate value based on Japan Standard Time.

  The information providing server 20 creates and outputs disaster prevention information to be provided to the mobile information terminals 61 to 6n based on the emergency earthquake information that is data received from the earthquake early warning server 10, and supplies the information to the mobile phone network 30. Have

  FIG. 2 is a block diagram illustrating a configuration example of the information providing server 20.

  As shown in the figure, the information providing server 20 performs data processing such as receiving means 22 for receiving emergency earthquake information from the earthquake early warning server 10 and distribution according to area for reporting based on the emergency earthquake information received by the receiving means 22. A calculation processing means (processor) 21 for performing disaster prevention information, a transmission means 23 for transmitting the disaster prevention information created by the calculation processing means 21 to the mobile phone network 30, and a processing means 21 for processing emergency earthquake information. Storage means 24 which is a database for managing position information (address information) to be collated with each other.

  The arithmetic processing means 21 is a processing device that also has a function of controlling the receiving means 22, the transmitting means 23, and the storage means 24 during data processing. More specifically, the arithmetic processing means 21 receives the receiving means 22 from the earthquake early warning server 10. The emergency earthquake information is received using, the description content of the emergency earthquake information and the address information stored in the storage means 24 are searched and collated, the corresponding base station is selected, and the transmission means 23 is used. Control until disaster prevention information is transmitted to the mobile phone network 30 is performed.

  The mobile phone network 30 includes a plurality of relay stations 41 to 4n that relay disaster prevention information transmitted from the information providing server 20 to a base station, and mobile information terminals 61 to 6n that are connected to the relay stations 41 to 4n by wire or wirelessly. And a plurality of base stations 51 to 5n that transmit and receive information between them.

  FIG. 3 is a block diagram illustrating a configuration example of the base stations 51 to 5n.

  As shown in the figure, the base stations 51 to 5n include information receiving means 502 for receiving disaster prevention information transmitted from the relay stations 41 to 4n and information transmitting / receiving means 503 for transmitting and receiving information between the portable information terminals 61 to 6n. And storage means 504 for storing disaster prevention information transmitted from the relay stations 41 to 4n to the base stations 51 to 5n, time receiving means 505 for receiving the standard radio wave transmitted from the standard radio wave emitting station 70, and time Controls the operation of the clock means 506 that is the time measuring device to be instructed, and the information receiving means 502, the information transmitting / receiving means 503, the storage means 504, the time receiving means 505, and the clock means 506 that are the respective components of these base stations 51 to 5n. And a control means 501.

  The information receiving unit 502 has a function of receiving disaster prevention information transmitted from the relay stations 41 to 4n and transmitting it to the control unit 501.

  The information transmitting / receiving unit 503 corresponds to the information transmitting unit described in claim 4 and the fourth invention, transmits disaster prevention information to the portable information terminals 61 to 6n, and is transmitted from the portable information terminals 61 to 6n as necessary. In addition to having a function of an information receiving means for receiving a transmission request in Japan standard time, Japan received by the standard radio wave received by the time receiving means 505 from the standard radio wave emitting station 70 in response to a request from the portable information terminals 61 to 6n. It has a function of information transmission means for transmitting standard time to the portable information terminals 61 to 6n.

  The storage unit 504 has a function of storing disaster prevention information transmitted from the relay stations 41 to 4n.

  The time receiving unit 505 receives the standard radio wave transmitted from the standard radio wave emitting station 70, acquires the Japan standard time notified by the standard radio wave, and the clock unit 506 via the control unit 501 with the acquired Japan standard time. It has the function to transmit to.

  The clock unit 506 has a function of correcting the time indicated by the clock unit 506 based on the Japanese standard time acquired by the time reception unit 505 receiving the standard radio wave, and thereafter counting the time based on the corrected time. .

  The portable information terminals 61 to 6n are small portable terminals such as portable telephones or PDAs (Personal Digital Assistants or Personal Data Assistants) or portable personal computers that can be carried by the base stations 51 to 5n. Via the Internet, it has a function of performing information exchange by packet communication such as voice call and mail, and referring to a homepage by WWW (World Wide Web).

  FIG. 4 is a block diagram illustrating a configuration example of the portable information terminals 61 to 6n.

  As shown in the figure, the portable information terminals 61 to 6n display information transmission / reception means 602 for transmitting / receiving voice or data to / from the base stations 51 to 5n, and display for displaying disaster prevention information received by the information transmission / reception means 602. Means 603; storage means 604 for storing the received disaster prevention information; information transmission / reception means 602 and display means 603 which are the constituent elements of the portable information terminals 61 to 6n; and control means 601 for controlling the operation of the storage means 604. It is configured with.

  The control unit 601 has a function of performing arithmetic processing in addition to controlling each component, and performing arithmetic processing such as calculating a difference between the predicted arrival time of the shake described in the disaster prevention information and Japan Standard Time Have

  The information transmission / reception means 602 receives the disaster prevention information transmitted from the base stations 51 to 5n, and if necessary, requests the base stations 51 to 5n to transmit the Japanese standard time, and responds to the transmission request of the Japanese standard time. The base stations 51 to 5n have a function of receiving the Japan standard time obtained by receiving the standard radio wave from the standard radio wave emitting station 70.

  The display unit 603 has a function of displaying the predicted seismic intensity that is a part of the disaster prevention information received by the information transmitting / receiving unit 602, the remaining time until the earthquake shakes, the operation procedure of the portable information terminals 61 to 6n, and the like. .

  The storage unit 604 stores the disaster prevention information transmitted from the base stations 51 to 5n and received by the information transmitting / receiving unit 602, and has a function of outputting the stored information as necessary.

  The standard radio wave emission station 70 is a facility for supplying a standard radio wave having a predetermined frequency. Information indicating the Japanese standard time is superimposed on the standard radio wave. For example, the standard radio wave emission station 70 is operated by the National Institute of Information and Communications Technology. The long wave band standard radio wave facility (calling code: JJY (registered trademark)) that transmits the standard radio wave that is being transmitted.

  The National Institute of Information and Communications Technology determines and maintains Japan Standard Time and Standard Frequency, and standard radio waves with a frequency of 40 kHz from Otakado and Yama Standard Radio Transmission Stations in Tamura City, Fukushima Prefecture, and Hagane in Saga County, Saga Prefecture A standard radio wave with a frequency of 60 kHz is transmitted from the Yama standard radio wave transmission station and supplied throughout Japan.

  In this embodiment, in order to recognize accurate Japan Standard Time, these standard radio waves are received by the earthquake early warning server 10, the base stations 51 to 5n, or the portable information terminals 61 to 6n and used for time correction and the like. ing.

  For the purpose of accurately recognizing Japan Standard Time, instead of receiving this standard time signal, Japan uses a time information providing service using an NTP (Network Time Protocol) system that can synchronize time online. Standard time may be acquired, accurate Japanese standard time may be acquired by a radio clock, Japanese standard time may be generated from a foreign standard time by a standard radio wave transmitted from overseas, and accurate time may be obtained by other methods. You may get

  The seismometers 81 to 8n are installed at each observation point in or around Japan. When an earthquake occurs, the seismometers 81 to 8n measure the earthquake motion (ground motion) generated by the earthquake, record it, and send the measurement result. It is a measuring terminal.

  The ground motion measured by the seismometers 81 to 8n is recorded and transmitted to the emergency earthquake bulletin server 10 installed in the Japan Meteorological Agency or the like, and is used as a parameter for determining the epicenter in the emergency earthquake bulletin server 10.

  Next, operation | movement of the disaster prevention information provision system of this embodiment is demonstrated in detail with reference to FIGS.

  FIG. 5 is a flowchart showing the operation of the disaster prevention information system of this embodiment.

  When an earthquake occurs in or around Japan, the seismic shaking is observed at the seismometers 81-8n of the earthquake observation facilities installed throughout the country.

  The earthquake early warning server 10 collects the seismic intensity indicating the degree of shaking detected by these seismometers 81 to 8n and the date and time when the shaking occurred, and the seismometer 81 that is known in advance and the seismic intensity and the date and time when the shaking occurred. The calculation process is started by obtaining earthquake information including the installed location information of ˜8n (step 301).

  In general, if the earth's crust structure is uniform, seismic waves generated by plate displacement, faults, volcanic explosions, etc. spread concentrically from the epicenter, and the same seismic intensity is observed on this concentric circle. It is common to do. Actually, the structure of the crust is complex and not uniform, so it is necessary to grasp this complex structure in advance so that the difference in seismic transmission speed and seismic intensity on concentric circles can be corrected. is there.

  If the explanation is made assuming that the structure of the crust is uniform, the earthquake early warning server 10 displays the seismic intensity obtained by the seismometers 81 to 8n and the positions where the seismometers 81 to 8n are installed on the map. By plotting, a concentric circle showing the same seismic intensity can be drawn, the center of this concentric circle is obtained as the epicenter of the earthquake, and a calculation process is performed to obtain a magnitude indicating the magnitude of the earthquake.

  By this calculation, the earthquake early warning server 10 obtains the state in which the earthquake further spreads on a concentric circle from the calculated epicenter and the magnitude of the earthquake by calculation processing.

  For example, it is known that the P wave that is the initial motion wave of an earthquake travels over 200 km from the epicenter in about 30 seconds under certain conditions, and the S wave that is the main motion of an earthquake travels about 300 km in about 80 seconds. I know that.

  In addition, the seismic intensity of the earthquake corresponds to the distance, and it is known that the seismic intensity at a point farther away from the epicenter becomes weaker as the distance from the epicenter increases.

  By using these past data, the emergency earthquake bulletin server 10 can obtain the predicted seismic intensity for each region, the estimated arrival time of the shake, and the like by calculation processing (step 302).

  The earthquake early warning server 10 provides information on the earthquake information that summarizes the epicenter of the earthquake, the magnitude of the earthquake, the area name, the predicted seismic intensity for each area, the estimated arrival time of the shaking, and the like obtained by these calculation processes. (Step 303).

  An example of the earthquake information created by the earthquake early warning server 10 is shown in FIG.

  As shown in the figure, the emergency earthquake information shows the column showing the epicenter from the left, the column showing the magnitude of the earthquake, and the name of the area where the earthquake is expected to occur after the earthquake at the epicenter Column, a column indicating the predicted seismic intensity of each region, and a column indicating the expected arrival time of the shake in each region.

  As you can see from the figure, the epicenter of the earthquake is 40.7 degrees north latitude and 142.5 degrees east longitude. The magnitude of this earthquake is magnitude 5.8, and this earthquake is expected to cause tremors in the future. Are region X, region Y, and region Z, the predicted seismic intensity in region X is seismic intensity 4, the expected arrival time in region X of this earthquake shake is 10:26:30, and the predicted seismic intensity in region X Is the seismic intensity 4, the expected arrival time of the earthquake shake in region X is 10:26:30, the predicted seismic intensity in region Y is seismic intensity 3, and the expected arrival time of this earthquake shake in region Y is It is 10:26:40, the predicted seismic intensity in the region Z is less than 5, and the predicted arrival time in the region Z of this earthquake shake is 10:26:20.

  The emergency earthquake information created by the earthquake early warning server 10 is transmitted from the emergency earthquake early warning server 10 to the information providing server 20, and the receiving means 22 of the information providing server 20 receives the emergency earthquake information (step 311).

  The information providing server 20 collates / searches the received emergency earthquake information and the address information stored in the storage unit 24 by the arithmetic processing unit 21, and the region X, the region Y, and the region Z described in the emergency earthquake information. By reading the address of the relay station and the address of the base station corresponding to, the arithmetic processing means 21 selects a destination address corresponding to each area name (step 312).

  The address information stored in the storage unit 24 of the information providing server 20 is shown in FIG.

  As shown in the figure, the address information stored in the storage means 24 includes a field indicating the area name from the left, a field indicating the name of the relay station and the address of the relay station of the portable information terminal covering each area, and each relay station. Consists of a column indicating the name of the base station and the address of the base station of the portable information terminal.

  As can be seen from the figure, the region names are region X, region Y, and region Z, and there are a relay station 41 having an address 41 and a relay station 42 having an address 42 as relay stations covering the region X. 41, there are a base station 51 having an address 51, a base station 52 having an address 52, and a base station 53 having an address 53, and a base station 54 having an address 54 as a base station covered by the relay station 42. It shows that there is.

  Similarly, there is a relay station 43 having an address 43 as a relay station covering the area Y, and a base station 55 having an address 55 and a base station 56 having an address 56 as base stations covered by the relay station 43, There is a relay station 44 having an address 44 as a relay station covering the base station, and a base station 57 having an address 57 and a base station 58 having an address 58 and a base station 59 having an address 59 are base stations covered by the relay station 44. It is shown that.

  FIG. 8 is a diagram showing an example of the flow of emergency earthquake information and disaster prevention information in the disaster prevention information providing system of the present embodiment.

  By searching the address information stored in the storage means 24 illustrated in FIG. 7 using the area name described in the emergency earthquake information received from the earthquake early warning server 10 shown in FIG. The correspondence shown in 8 (b) is obtained.

  As shown in the figure, a relay station address column and a base station address column are inserted between the region name column and the predicted seismic intensity column of the emergency earthquake information shown in FIG. X is converted into the address 41 of the relay station 41 and the address 42 of the relay station 42 corresponding to X, and the address 51 of the base station 51, the address 52 of the base station 52, and the base station 53 covered by the relay station 41 of the address 41 Converted to address 53, converted to address 54 of base station 54 covered by relay station 42 of address 42, converted to address 43 of relay station 43 corresponding to region Y, and covered by relay station 43 of address 43. It is converted to the address 55 of the existing base station 55.

  In this way, as the relay station address and base station address for each region are identified, the predicted seismic intensity and the predicted arrival time of each region described in the emergency earthquake information are sorted by region and Disaster prevention information is created, and disaster prevention information corresponding to each region is transmitted to each corresponding base station via each relay station of the mobile phone network 30 (step 313).

  FIG.8 (c) shows an example of the disaster prevention information transmitted to a specific area among the information shown in FIG.8 (b), and this disaster prevention information shown by the figure is specifically relay of area X. The data is transmitted to the base stations 51 to 54 via the stations 41 and 42.

  As shown in the figure, disaster prevention information transmitted to each region includes a column indicating the epicenter from the left, a column indicating the magnitude of the earthquake, a column indicating the predicted seismic intensity of the region transmitted by this earthquake, and shaking in each region. It consists of a column indicating the expected arrival time.

  As can be seen from the figure, the base stations 51 to 54 (the base station addresses are the address 51 and the address respectively) via the relay stations 41 and 42 in the region X (the relay station addresses are the address 41 and the address 42, respectively). 52, address 53, address 54), the epicenter of the earthquake is 40.7 degrees north latitude and 142.5 degrees east longitude, the magnitude of this earthquake is magnitude 5.8, The predicted seismic intensity is seismic intensity 4, which indicates that the predicted arrival time of this earthquake in region X is 10:26:30.

  In this way, the information providing server 20 collates each area described in the emergency earthquake information with the address information stored in the storage unit 24, thereby covering the mobile phone network 30 (relay station and base station) covering each area. ) Address, convert the region name into a communication address corresponding to this region name, select the predicted seismic intensity predicted for each region and the expected arrival time of the vibration, and send to each region Can do.

  The disaster prevention information processed by the arithmetic processing unit 21 and transmitted from the transmission unit 23 of the information providing server 20 is received by the relay stations 41 to 4n (step 321) and transmitted to the base stations 51 to 5n (step 313). ).

  For example, the disaster prevention information received by the relay station 41 is transmitted to the base stations 51 to 53, the disaster prevention information received by the relay station 42 is transmitted to the base station 54, and the disaster prevention information received by the relay station 43 is the base station. 55 and 56.

  In addition, although the base station address is not specified in the disaster prevention information shown in FIG. 8 (c), the base stations 51 to 5n covered by the relay stations 41 to 4n that have received the disaster prevention information are known in advance. The description is simply omitted. If necessary, the base station address shown in FIG. 8B may also be described in the disaster prevention information, and the disaster prevention information may be transmitted to the base stations 51 to 5n corresponding to the described base station address. .

  The disaster prevention information transmitted from each relay station 41 to 4n is received by the information receiving means 502 of each base station 51 to 5n (step 331).

  The disaster prevention information received by the base stations 51 to 5n is stored in the storage unit 504 and transmitted from the information transmitting / receiving unit 503 toward the portable information terminals 61 to 6n within the radio wave coverage area of the base stations 51 to 5n. (Step 332).

  Next, the base stations 51 to 5n receive the standard radio wave transmitted from the standard radio wave emitting station 70 by the time receiving unit 505 (step 333), and the Japan standard time indicated by the standard radio wave is transmitted via the control unit 501. The time is supplied to the clock means 506, the time indicated by the clock means 506 is corrected, and the Japan Standard Time is transmitted from the information transmission / reception means 503 to the portable information terminals 61-6n that have transmitted the disaster prevention information (step 334).

  The transmission from the base stations 51 to 5n to the portable information terminals 61 to 6n at the Japanese standard time is not limited to the transmission of the disaster prevention information to the portable information terminals 61 to 6n. May be simultaneously transmitted from the information transmitting / receiving unit 503 to the portable information terminals 61 to 6n.

  The disaster prevention information transmitted from the base stations 51 to 5n is received by the information transmitting / receiving means 602 of each portable information terminal 61 to 6n (step 341), and the disaster prevention information is stored in the storage means 604.

  The Japanese standard time transmitted from the base stations 51 to 5n is received by the information transmitting / receiving means 602 of each portable information terminal 61 to 6n and stored in the storage means 604 (step 342).

  The control means 601 of the portable information terminals 61 to 6n reads the standard time of Japan and the estimated arrival time of the shake in the disaster prevention information from the storage means 604, subtracts the standard time of Japan from the estimated arrival time of the shake, and obtains the difference. The remaining time until the earthquake starts in the area where the portable information terminals 61 to 6n are stored is stored in the storage unit 604 (step 343).

  For example, assuming that the Japanese standard time received by the portable information terminals 61 to 6n, that is, the current accurate time is 10:26:15, the predicted arrival time of the shake described in the disaster prevention information is 10:26:30 and Japan. By calculating the difference from the standard time of 10:26:15, it is required that the remaining time until the earthquake starts in the region X is 15 seconds.

  Here is a supplement to the handling of Japan Standard Time.

  The propagation delay time, processing delay time, etc. from the standard radio wave emitting station 70 through the base stations 51 to 5n to the reception of the Japanese standard time by the portable information terminals 61 to 6n are previously determined from the standard radio wave emitting station 70 to the portable information terminal 61. The total distance up to 6n and the processing time of each component are obtained by measurement and the like. If these propagation delay time and processing delay time cannot be ignored, the propagation delay time and processing delay time are stored in the storage means 24. , 504, 604, etc., and may be used for correction when calculating the remaining time until the earthquake arrives.

  In general, it is known that the propagation delay of standard radio waves is negligible.

  FIG. 8D shows an example of the display contents of the display means 603 of the portable information terminals 61 to 6n existing in the area where the mobile phone radio waves from the base stations 51 to 5n can reach.

  As shown in the figure, the display content of the display means 603 has a column indicating the predicted seismic intensity on the left side and a column indicating the remaining time until the arrival of the shake on the right side.

  In the figure, it can be seen that the predicted seismic intensity in region X is seismic intensity 4, and the remaining time until the arrival of the shake in region X is 15 seconds.

  The predicted seismic intensity stored in the storage unit 604 and the remaining time until the arrival of the shake are read out, and the predicted seismic intensity and the remaining time until the arrival of the shake are displayed on the display unit 603 of the portable information terminals 61 to 6n ( Step 344).

  In this display example, only the predicted seismic intensity and the remaining time until the arrival of the shaking are displayed, but naturally the information on the epicenter or the magnitude value indicating the magnitude of the earthquake described in the disaster prevention information received as necessary May be displayed.

  According to the disaster prevention information providing system of the present invention, even if the portable information terminals 61 to 6n do not have the function of receiving the standard radio wave transmitted from the standard radio wave emitting station 70, the Japanese standard time is obtained from the base stations 51 to 5n. By acquiring, the portable information terminals 61 to 6n can accurately obtain the remaining time until the earthquake arrives.

As described above, according to the disaster prevention information provision system of the present invention, the following excellent effects can be obtained.
(1) The disaster prevention information provision system can provide disaster prevention information to a portable information terminal and accurately obtain the remaining time until the expected arrival time of a natural phenomenon such as an earthquake using the Japanese standard time indicated in the standard radio wave. In addition, the user of the portable information terminal can accurately grasp the natural phenomenon to reach and the remaining time until the natural phenomenon arrives.
(2) The disaster prevention information providing system is information that is easier to understand than the estimated time of arrival of the natural phenomenon by indicating the remaining time until the natural phenomenon is reached. For this reason, the user of the portable information terminal can avoid encountering a disaster caused by a natural phenomenon with reference to the remaining time, or can take preventive measures against the arrival of the natural phenomenon. Damage from the disaster that occurs can be minimized.
(3) When the base station receives the standard radio wave and obtains the Japanese standard time indicated by the standard radio wave, the mobile information terminal transmits from the base station even if the mobile information terminal does not have the function of receiving the standard radio wave. By obtaining the Japan Standard Time, the portable information terminal can obtain an accurate Japan Standard Time, correct the clock of the portable information terminal, and accurately obtain the remaining time until the expected arrival time of the natural phenomenon.
(4) When the base station receives the standard radio wave and obtains the Japanese standard time indicated by the standard radio wave, there is almost no transmission delay time until the Japanese standard time acquired by the base station is transmitted to the portable information terminal. The information terminal can acquire accurate Japan Standard Time, and can use this accurate Japan Standard Time to accurately obtain the remaining time until the expected arrival time of the natural phenomenon.
(5) When the mobile information terminal receives the standard radio wave and obtains the Japanese standard time indicated by the standard radio wave, the mobile information terminal corrects the clock of the mobile information terminal using the accurate Japan standard time obtained by the mobile information terminal. The remaining time until the expected arrival time of the natural phenomenon can be obtained accurately.
(6) In this way, the disaster prevention information provision system provides disaster prevention information to the portable information terminal and accurately provides easy-to-understand time information such as the remaining time until the expected shaking (earthquake motion) arrives. The resulting mechanism can be realized.

  Note that the disaster prevention information provision system is not limited to the present embodiment described. The information handled by the system is earthquake information such as emergency earthquake information. However, information other than earthquake information may be used as long as the occurrence time can be predicted. For example, the time until the arrival of a typhoon is predicted and reported to the portable information terminal, or the time until the storm surge caused by the typhoon occurs is predicted and reported to the portable information terminal.

  The estimated seismic intensity and the remaining time until the expected arrival time of the shake are displayed on the display means of the portable information terminal. However, for example, it may be emitted by voice, or an alarm sound is emitted when displayed on the display means. This includes notifying the user of the portable information terminal that information has arrived.

  Moreover, as long as it has the function of the disaster prevention information provision system of this embodiment, it is not limited to the structure demonstrated by embodiment, A structure and a function may be in another component.

  Next, a first embodiment of the disaster prevention information providing system will be described.

  The disaster prevention information provision system of the present embodiment will be described in detail with reference to the drawings.

  This embodiment is a disaster prevention information providing system having the configuration shown in FIG. 9, and the mobile phone network 30 shown in FIG. 1 is a mobile phone network 300 having the configuration shown in FIG. In the providing system, the base stations 51 to 5n shown in FIG. 3 are the base stations 551 to 55n configured as shown in FIG. 10, and the portable information terminals 61 to 6n shown in FIG. 4 are portable as shown in FIG. Information terminals 661 to 66n are provided.

  FIG. 10 is a block diagram illustrating a configuration example of the base stations 551 to 55n of the present embodiment.

  As shown in the figure, the base stations 551 to 55n transmit and receive information between the information receiving means 902 for receiving the disaster prevention information transmitted from the relay stations 41 to 4n shown in FIG. 9 and the portable information terminals 661 to 66n. Information transmission / reception means (corresponding to the information transmission means described in claims 8 and 8) 903, and storage means 904 for storing disaster prevention information transmitted from the relay stations 41-4n to the base stations 551-55n, etc. The information receiving means 902, the information transmitting / receiving means 903, and the control means 901 for controlling the operation of the storage means 904, which are these constituent elements, are provided.

  FIG. 11 is a block diagram illustrating a configuration example of the portable information terminals 661 to 66n.

  As shown in the figure, the portable information terminals 661 to 66n transmit / receive information such as voice or data to / from the base stations 551 to 55n (corresponding to the information receiving means described in claims 7 and 7). 912), display means 913 for displaying the disaster prevention information received by the information transmitting / receiving means 912, storage means 914 for storing the received disaster prevention information, and time for receiving the standard radio wave transmitted from the standard radio wave emission station 70 Controls the operation of the receiving means 915, the clock means 916 that is a time measuring device that indicates the time, and the information transmitting / receiving means 912, the display means 913, the storage means 914, the time receiving means 915, and the clock means 916 that are each of these components. The control means 911 is provided.

  The storage unit 914 has a function of storing disaster prevention information and the like transmitted from the base stations 551 to 55n and received by the information transmission / reception unit 912, and outputting the stored information as necessary.

  Thus, in the disaster prevention information providing system of this embodiment, the time receiving means 505 and the clock means 506 provided in the base stations 51 to 5n in FIG. 3 are connected to the portable information terminals 661 to 66n as shown in FIG. The time receiving means 915 and the clock means 916 are provided in the configuration.

  For this reason, in the disaster prevention information providing system of the embodiment already described, the time reception means 915 of the portable information terminals 661 to 66n performs the reception of the standard radio waves from the standard radio wave emission stations 70 performed by the base stations 51 to 5n. Instead of correcting the time of the clock means 506 of the base stations 51 to 5n according to the Japanese standard time indicated by the standard radio waves, the clock means 916 of the portable information terminals 661 to 66n according to the Japanese standard time indicated by the standard radio waves received by the time receiving means 915. Time correction is performed.

  Except for the difference in configuration and the operation described in the present embodiment, the functions of the components of the base stations 551 to 55n are the same as the functions of the components of the base stations 51 to 5n. Moreover, since the function of each component of the portable information terminals 661 to 66n is the same as the function of each component of the portable information terminals 61 to 6n, description thereof is omitted.

  Next, the operation of the disaster prevention information providing system having such a configuration will be described.

  FIG. 12 is a flowchart showing the operation of the disaster prevention information system of this embodiment.

  Here, step 301 to step 332 and step 341 shown in the figure are the same as the operation of FIG.

  The disaster prevention information transmitted from the base stations 551 to 55n is received by the information transmitting / receiving means 912 of each portable information terminal 661 to 66n (step 341), and the portable information terminals 661 to 66n receiving this disaster prevention information The standard time signal transmitted from the station 70 is received by the time receiving means 915 (step 346), and the Japanese standard time indicated by the received standard time signal is supplied to the clock means 916 via the control means 911. The time indicated by is corrected.

The portable information terminals 661 to 66n are controlled by the calculation function of the control unit 911.
The difference between the predicted arrival time of the shaking described in the disaster prevention information shown in FIG. 8C and the Japan standard time indicated by the received standard radio wave is obtained, and the earthquake in the area where the portable information terminals 661 to 66n that received the disaster prevention information are located The remaining time until the shaking starts (step 347).

  For example, assuming that the Japanese standard time received by the portable information terminals 661 to 66n, that is, the current accurate time is 10:26:15, the predicted arrival time of the shake described in the disaster prevention information is 10:26:30 and Japan. By calculating the difference from the standard time, it is required that the remaining time until the earthquake shakes in the region X is 15 seconds.

  Here, I will mention the handling of Japan Standard Time.

  Propagation delay time, processing delay time, etc. from the standard radio wave emitting station 70 until the mobile information terminals 661-66n receive Japan Standard Time are obtained by measurement in the same manner as in the present embodiment. The delay time may be stored in the storage unit 914 or the like, and used for correction when calculating the remaining time until the arrival of the earthquake.

  FIG. 8D shows an example of the display contents of the display means 913 of the portable information terminals 661 to 66n existing in the area where the mobile phone radio waves from the base stations 51 to 5n can reach.

  As shown in the figure, the display content of the display means 913 has a column indicating the predicted seismic intensity on the left side and a column indicating the remaining time on the right side thereof.

  In the figure, it can be seen that the predicted seismic intensity in region X is seismic intensity 4, and the remaining time until the arrival of the shake in region X is 15 seconds.

  The predicted seismic intensity and the remaining time until the arrival of the shake are displayed on the display means 913 of the portable information terminals 661 to 66n (step 348).

  According to the disaster prevention information provision system of the present embodiment, the portable information terminals 661 to 66n directly receive the standard radio waves from the standard radio wave emitting station 70 and obtain the Japanese standard time indicated by the standard radio waves, whereby the portable information terminals 661 to 661 66n can accurately determine the remaining time until the earthquake arrives.

  Next, a second embodiment of the disaster prevention information provision system will be described.

  The disaster prevention information provision system of the present embodiment will be described in detail with reference to the drawings.

  The disaster prevention information provision system of a present Example has a structure shown in FIGS. Since this configuration has already been described in detail in the embodiment, description of the configuration is omitted.

  The operation of such a disaster prevention information provision system will be described next.

  FIG. 13 is a flowchart showing the operation of the disaster prevention information system of this embodiment.

  Here, step 301 to step 332 and step 341 shown in the figure are the same as the operation of FIG.

  The disaster prevention information transmitted from the base stations 51 to 5n is received by the information transmitting / receiving means 602 of each portable information terminal 61 to 6n (step 341), and the portable information terminals 61 to 6n are in Japan standard time with respect to the base stations 51 to 5n. Is requested (step 351).

  When the base stations 51 to 5n receive the Japan Standard Time transmission request of the portable information terminals 61 to 6n (step 336), the base stations 51 to 5n receive the standard radio waves transmitted from the standard radio wave emitting station 70 as time receiving means 505. (Step 337).

  The base stations 51 to 5n transmit the Japan standard time indicated by the standard radio wave from the information transmitting / receiving unit 503 to the portable information terminals 61 to 6n that have requested transmission of the Japanese standard time indicated by the standard radio wave via the control unit 501 ( Step 338).

  The Japanese standard time transmitted from the base stations 51 to 5n is received by the information transmitting / receiving means 602 of each portable information terminal 61 to 6n (step 352).

  The mobile information terminals 61 to 6n obtain the difference between the time described in the predicted arrival time of the disaster prevention information shown in FIG. The remaining time until the earthquake starts to shake in the area where the received portable information terminals 61 to 6n are located (step 353).

  For example, assuming that the Japanese standard time received by the portable information terminals 61 to 6n, that is, the current accurate time is 10:26:15, the predicted arrival time of the shake described in the disaster prevention information is 10:26:30 and Japan. By calculating the difference from the standard time, it is required that the remaining time until the earthquake starts in the region X is 15 seconds.

  Here, I will mention the handling of Japan Standard Time.

  The propagation delay time, processing delay time, etc. from the standard radio wave emitting station 70 through the base stations 51 to 5n to the reception of the Japanese standard time by the portable information terminals 61 to 6n are previously determined from the standard radio wave emitting station 70 to the portable information terminal 61. The total distance up to 6n and the processing time of each component are obtained by measurement, etc., and the propagation delay time and processing delay time are stored in the storage means 24, 504, 604, etc. It may be used for correction when calculating the remaining time.

  FIG. 8D shows an example of the display content of the display means 603 of the portable information terminals 61 to 6n existing in the area where the mobile phone radio waves from the base stations 51 to 54 can reach.

  As shown in the figure, the display content of the display means 603 has a column indicating the predicted seismic intensity on the left side and a column indicating the remaining time on the right side thereof.

  In the figure, it can be seen that the predicted seismic intensity in region X is seismic intensity 4, and the remaining time until the arrival of the shake in region X is 15 seconds.

  The predicted seismic intensity and the remaining time until the arrival of the shake are displayed on the display means 603 of the portable information terminals 61 to 6n (step 354).

  According to the disaster prevention information provision system of the present embodiment, the portable information terminals 61 to 6n have a function of receiving a long wave standard radio wave transmitted from the standard radio wave emission station 70, similarly to the disaster prevention information provision system of the embodiment. Even if not, the portable information terminals 61 to 6n transmit the Japanese standard time indicated by the standard radio waves and the portable information terminals 61 to 6n obtain the Japanese standard time transmitted from the base stations 51 to 5n. The remaining time until an earthquake arrives can be calculated | required correctly by 61-6n.

  Here, the disaster prevention information provision system has been described in detail according to the present embodiment and Examples 1 and 2, but the function of receiving the long-wave standard radio wave transmitted from the standard radio wave emission station 70 has the function of the base stations 51 to 5n or the mobile phone. The information terminals 661 to 66n have.

  For example, instead of the mobile information terminals 61 to 6n and 661 to 66n calculating the remaining time until the earthquake shake in a certain area by calculation, the base stations 51 to 5n and 551 to 55n calculate the remaining time in advance. The remaining time may be described in the disaster prevention information transmitted by the base stations 51 to 5n and 551 to 55n.

  Thus, the configuration and operation of the disaster prevention information provision system are not limited to the present embodiment and Examples 1 and 2, and various combinations are conceivable.

  FIG. 14 shows an operation outline of the disaster prevention information provision system.

  As shown in the figure, there is a column indicating CASE from the left side, a column indicating an outline of the operation of the radio station (mainly a base station), a column indicating a direction of communication, and an outline of the operation of the portable information terminal. It can be seen that there is a column indicating.

  Here, the disaster type information generally indicates information on the type of natural phenomenon such as typhoon, earthquake, tsunami, storm surge, etc., but in the embodiment, it refers to an earthquake and is an area where a portable information terminal exists. This is equivalent to the seismic intensity predicted by this earthquake.

  A broken line arrow in the column indicating the direction of communication indicates that the portable information terminal receives the standard radio wave directly from the standard radio wave emission station, and the portable information terminal obtains the Japanese standard time indicated by the standard radio wave.

  CASE 1 in the figure is an outline of the operation of the disaster prevention information providing system described in this embodiment.

  In the figure, CASE2 is such that the base station receives the standard radio wave, calculates the remaining time until the base station starts shaking from the standard time of Japan and the expected arrival time indicated by the standard radio wave, and transmits it to the portable information terminal. In CASE3, the base station receives the standard radio wave, obtains Japan Standard Time, transmits this Japan Standard Time to the portable information terminal, and displays this Japan Standard Time together with the disaster prevention information on the portable information terminal. CASE 4 is the same as that described in the second embodiment.

  In the figure, CASE5 is the transmission of the remaining time of the portable information terminal by calculating the remaining time from when the base station receives the standard radio wave and the base station starts to shake from the standard time of Japan and the expected arrival time indicated by the standard radio wave. In response to the request, the base station transmits the remaining time to the portable information terminal. In CASE6, the portable information terminal that has received the disaster prevention information requests the base station from Japan Standard Time. In response to the request, the portable information terminal is notified of the Japanese standard time, and the time corrected by the portable information terminal according to the Japanese standard time is displayed as the disaster prevention information. It is what was explained in.

  In CASE 8, the portable information terminal receives the disaster prevention information, and then the portable information terminal receives the standard radio wave, corrects the clock of the portable information terminal, and displays the disaster prevention information and the corrected time on the portable information terminal. In CASE 9, the portable information terminal receives the standard radio wave in advance and corrects the clock of the portable information terminal. The portable information terminal then receives the disaster prevention information and calculates the remaining time in the portable information terminal. The mobile information terminal receives the standard radio wave in advance and corrects the clock of the mobile information terminal, and the mobile information terminal then receives the disaster prevention information to correct the disaster prevention information and the CASE 10 The time is displayed on the portable information terminal.

It is a block diagram which shows the structural example of the disaster prevention information provision system of this embodiment. It is a block diagram which shows the structure of the information provision server of the disaster prevention information provision system of this embodiment. It is a block diagram which shows the structural example of the base station of the disaster prevention information provision system of this embodiment. It is a block diagram which shows the structural example of the portable information terminal of the disaster prevention information provision system of this embodiment. It is a flowchart which shows operation | movement of the disaster prevention information provision system of this embodiment. It is a figure which shows an example of the emergency earthquake information which the earthquake early warning server created. It is a figure which shows the specific example of the address information memorize | stored in the memory | storage means of an information provision server. FIG. 8A is a diagram illustrating an example of emergency earthquake information transmitted from the earthquake early warning server. FIG. 8B is a diagram illustrating a state in which data processing is performed by the information providing server and an address corresponding to the area name is collated. FIG.8 (c) is a figure which shows an example of the disaster prevention information transmitted to each portable information terminal. FIG. 8D is a diagram showing an example of the disaster prevention information displayed on the display means of the portable information terminal and the remaining time until the natural phenomenon arrives. It is a block diagram which shows the structural example of the disaster prevention information provision system of Example 1. FIG. It is a block diagram which shows the structural example of the base station of the disaster prevention information provision system of Example 1. FIG. It is a block diagram which shows the structural example of the portable information terminal of the disaster prevention information provision system of Example 1. FIG. It is a flowchart which shows operation | movement of the disaster prevention information provision system of Example 1. FIG. It is a flowchart which shows operation | movement of the disaster prevention information provision system of Example 2. FIG. It is a reference figure which shows operation | movement of a disaster prevention information provision system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Earthquake early warning server 20 Information provision server 21 Arithmetic processing means 22 Receiving means 23 Transmission means 24 Storage means 30 Mobile telephone network 41-4n Relay station 51-5n Base station 61-6n Portable information terminal 70 Standard radio wave emission station 81-8n Seismometer 300 Mobile phone network 501 Control means 502 Information reception means 503 Information transmission / reception means 504 Storage means 505 Time reception means 506 Clock means 551 to 55n Base station 601 Control means 602 Information transmission / reception means 603 Display means 604 Storage means 605 Time reception means 606 Clock means 661-66n Portable information terminal 901 Control means 902 Information reception means 903 Information transmission / reception means 904 Storage means 911 Control means 912 Information transmission / reception means 913 Display means 914 Storage means 915 Time reception means 916 Clock means

Claims (11)

  Providing information characterized in that, when a first event is detected, an occurrence location and a time until the occurrence of a second event predicted to occur from the detected first event is obtained, and the result is reported. system. A disaster prevention information providing system that detects the occurrence of a natural phenomenon such as an earthquake or typhoon and reports the arrival of the natural phenomenon to a portable information terminal,
Receiving the detection result of the natural phenomenon detected by the measuring terminal, and creating and transmitting emergency disaster information including an area where the natural phenomenon is expected to affect and an expected arrival time of the area; A data processing device;
Second data processing that receives the emergency disaster information transmitted from the first data processing device, generates disaster prevention information for each region from the emergency disaster information, and transmits the disaster prevention information for each region Equipment,
The disaster prevention information is received from the second data processing device, the disaster prevention information is transmitted to the portable information terminal, the standard radio wave transmitted from the standard radio wave emission station is received, and the standard time indicated by the standard radio wave is received. A mobile phone network for transmitting the mobile information to the mobile information terminal,
The mobile information terminal receives the disaster prevention information and the Japan Standard Time from the mobile phone network, and until the natural phenomenon reaches the area from the expected arrival time indicated by the disaster prevention information and the Japan Standard Time Disaster prevention information provision system characterized by calculating the remaining time of In the disaster prevention information provision system according to claim 2,
The portable information terminal
Receiving the disaster prevention information, and by receiving the disaster prevention information, the mobile phone network is requested to transmit the Japan Standard Time indicated by the standard radio wave, and the mobile phone network transmitted in response to the request. Information transmission / reception means for receiving Japan Standard Time;
Storage means for storing the disaster prevention information;
Control means for calculating the remaining time until the natural phenomenon reaches the area according to the predicted arrival time of the natural phenomenon described in the disaster prevention information received by the information transmitting / receiving means and the Japan Standard Time;
Display means for displaying the disaster prevention information and the remaining time until the natural phenomenon reaches;
Disaster prevention information provision system with In the disaster prevention information provision system according to claim 2,
The mobile phone network is
Information receiving means for receiving the disaster prevention information transmitted by the second data processing device;
A time receiving means for receiving the standard radio wave;
Clock means for correcting the time according to the Japan standard time indicated by the standard radio wave received by the time receiving means, and indicating the corrected time;
A disaster prevention information provision system comprising: the Japan Standard Time and information transmission means for transmitting the disaster prevention information to the portable information terminal. In the disaster prevention information provision system according to claim 2,
The second data processing device includes:
Receiving means for receiving the emergency disaster information;
Storage means for storing address information corresponding to the area for transmitting the disaster prevention information to the area;
Comparing the disaster prevention information with the address information, obtaining the address information corresponding to the area, and calculating the disaster prevention information for each address information;
A disaster prevention information providing system comprising: transmission means for transmitting the disaster prevention information created by the arithmetic processing means. A disaster prevention information providing system that detects the occurrence of a natural phenomenon such as an earthquake or typhoon and reports the arrival of the natural phenomenon to a portable information terminal,
A first data processing device that receives the detection result of the natural phenomenon detected by the measurement terminal, and creates and transmits emergency disaster information including an area where the natural phenomenon extends and an expected arrival time of the area;
The emergency disaster information transmitted from the first data processing device is received, the emergency disaster information is classified for each region, and disaster prevention information for each region is created. A second data processing device to transmit;
A mobile phone network that receives the disaster prevention information from the second data processing device and transmits the disaster prevention information to the portable information terminal;
The mobile information terminal receives the disaster prevention information from the mobile phone network, receives a standard radio wave transmitted from a standard radio wave emission station, the expected arrival time indicated by the disaster prevention information, and the standard radio wave indicated by the standard radio wave A disaster prevention information providing system for calculating a remaining time until the natural phenomenon reaches the area from Japan Standard Time. In the disaster prevention information provision system according to claim 6,
The portable information terminal
Information receiving means for receiving the disaster prevention information transmitted from the mobile phone network;
Time receiving means for receiving the standard radio wave transmitted from the standard radio wave emission station;
Storage means for storing the disaster prevention information;
Control means for calculating the remaining time until the natural phenomenon reaches the area based on the predicted arrival time of the natural phenomenon described in the disaster prevention information received by the information receiving means and the Japanese standard time indicated by the standard radio wave When,
Display means for displaying the disaster prevention information and the remaining time until the natural phenomenon reaches;
Disaster prevention information provision system with In the disaster prevention information provision system according to claim 6,
The mobile phone network is
Information receiving means for receiving the disaster prevention information transmitted by the second data processing device;
A disaster prevention information provision system comprising: information transmission means for transmitting the disaster prevention information to the portable information terminal. In the disaster prevention information provision system according to claim 6,
The second data processing device includes:
Receiving means for receiving the emergency disaster information;
Storage means for storing address information corresponding to the area for transmitting the disaster prevention information to the area;
Comparing the disaster prevention information with the address information, obtaining the address information corresponding to the area, and calculating the disaster prevention information for each address information;
A disaster prevention information providing system comprising: transmission means for transmitting the disaster prevention information created by the arithmetic processing means. An information provision method for a disaster prevention information provision system that detects the occurrence of a natural phenomenon such as an earthquake or a typhoon and reports the arrival of the natural phenomenon to a portable information terminal,
Receiving the detection result of the natural phenomenon detected by the measurement terminal, and creating and transmitting emergency disaster information including an area where the natural phenomenon extends and an expected arrival time of the area;
Receiving the emergency disaster information, classifying the emergency disaster information for each region, creating disaster prevention information for each region, and transmitting the disaster prevention information for each region;
Receiving the disaster prevention information, transmitting the disaster prevention information, receiving a standard radio wave transmitted from a standard radio wave emission station, and transmitting the Japanese standard time indicated by the standard radio wave to the portable information terminal, And
Receiving the disaster prevention information and the Japan Standard Time, and calculating a remaining time until the natural phenomenon reaches the area from the estimated arrival time indicated by the disaster prevention information and the Japan Standard Time. Information provision method of disaster prevention information provision system. An information provision method for a disaster prevention information provision system that detects the occurrence of a natural phenomenon such as an earthquake or a typhoon and reports the arrival of the natural phenomenon to a portable information terminal,
Receiving the detection result of the natural phenomenon detected by the measurement terminal, and creating and transmitting emergency disaster information including an area where the natural phenomenon extends and an expected arrival time of the area;
Receiving the emergency disaster information, classifying the emergency disaster information for each region to create disaster prevention information for each region, and transmitting the disaster prevention information for each region;
Receiving the disaster prevention information and transmitting the disaster prevention information; and
Receiving the disaster prevention information, receiving a standard radio wave transmitted from a standard radio wave emission station, the natural phenomenon in the region from the expected arrival time indicated by the disaster prevention information and the Japan standard time indicated by the standard radio wave An information providing method for a disaster prevention information providing system, characterized by calculating a remaining time until reaching.

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