JP2008242904A - Earthquake alarm system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an earthquake alarm system capable of distributing epicenter information to a plurality of mobile communication terminals as an earthquake alarm at high speed, when an earthquake has struck. <P>SOLUTION: The earthquake alarm system comprises a plurality of mobile communication terminals (mobile phones 21A-21C), a sensor 11 for observing the tremor of an earthquake, and a communication means for receiving epicenter information based on the observation result of the sensor 11 and transmitting calling data for establishing communication to arbitrary specified mobile communication terminals of the plurality of the mobile communication terminals. The calling data contains communication destination ID numbers of the specified mobile communication terminals and communication sender ID numbers of the communications means. The communication means adds an epicenter code number related to the epicenter information after the communication destination ID number, sends the calling data, and upon receipt of a command of being called from the specified mobile communication terminals, transmits termination data for terminating the communication with the specified mobile communication terminals. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an earthquake warning system, and more particularly, to a technique for distributing epicenter information at high speed as an earthquake warning.

  In recent years, there have been many earthquakes in Japan, and the earthquake information announced by the Japan Meteorological Agency and the Japan Weather Association is residing in the alert area via the Internet, etc. in order to minimize damage caused by the earthquake. Various systems for issuing warnings to residents have been devised (see, for example, Patent Document 1).

  The earthquake warning system disclosed in Patent Document 1 observes the P wave (primary wave) before the S wave (secondary wave) that is the main motion of the earthquake is transmitted, and analyzes its characteristics, It is a system that can estimate the magnitude and epicenter of an earthquake. More specifically, in the earthquake warning system disclosed in Patent Document 1, earthquake observation devices that observe earthquakes and analysis devices that analyze observed observation information are installed at a plurality of locations throughout Japan. When an earthquake is observed in the seismic observation device, detailed information such as the magnitude of the earthquake and the epicenter of the earthquake is specified in the analysis device, and an Internet connection terminal (for example, a mobile phone) is available via the Internet or the like (may be a public line). Earthquake information is distributed to telephones.

  Here, when earthquake information is distributed to a mobile phone, generally, a short message or an electronic mail (e-mail) is used (see, for example, Patent Document 2). In the earthquake information distribution system disclosed in Patent Document 2, when emergency earthquake information is transmitted from the earthquake monitoring server, the earthquake information distribution server performs format conversion of the emergency earthquake information, and by a short message or e-mail, It is transmitted to each mobile communication terminal (mobile phone).

JP 2001-307265 A JP 2007-47936 A

  However, it is difficult to ensure high speed if earthquake information is distributed using a short message or electronic mail, including the earthquake information distribution system disclosed in Patent Document 2 described above.

  Specifically, for example, a short message from the carrier to each mobile communication terminal for about one minute from when the sensor detects the shaking of the earthquake until the earthquake information reaches the mobile communication carrier (carrier) that handles the mobile communication terminal. It may take about 1 minute until an e-mail is sent, or about 2 minutes after the earthquake. In this case, the owner of the mobile communication terminal cannot obtain the earthquake information before the S wave of the earthquake arrives.

  The present invention has been made in view of such a point, and the purpose of the present invention is an earthquake capable of delivering seismic source information as an earthquake alarm to a plurality of mobile communication terminals at a high speed when an earthquake occurs. To provide an alarm system.

  In order to solve the above problems, the present invention provides the following.

  (1) A plurality of mobile communication terminals, a sensor for observing earthquake shaking, and epicenter information based on observation results of the sensors are received, and an arbitrary specific mobile communication terminal among the plurality of mobile communication terminals is received. Communication means for transmitting call data for establishing communication, and the call data includes a communication destination identification number of the specific mobile communication terminal and a communication source of the communication means. And the communication means adds the epicenter code number related to the epicenter information after the communication destination identification number, and then transmits the call data, from the specific mobile communication terminal side. An earthquake alarm system characterized by transmitting end data for ending communication with the specific mobile communication terminal upon receiving a command being called.

  According to the present invention, a plurality of mobile communication terminals, a sensor for observing an earthquake shake, and epicenter information based on the observation result of the sensor are received, and any specific mobile communication terminal among the plurality of mobile communication terminals is received. Communication means for transmitting call data for establishing communication, and in the earthquake warning system, the call data includes a communication destination identification number of a specific mobile communication terminal and a communication source identification number of the communication means. The communication means adds the epicenter code number relating to the epicenter information to the end of the communication destination identification number, transmits the call data, and receives the command being called from the specific mobile communication terminal side. As a result, since the end data for ending the communication with the specific mobile communication terminal is transmitted, the epicenter information can be distributed at a high speed as an earthquake alarm. In other words, by adding the epicenter code number related to the epicenter information to the end of the communication destination identification number, the owner of the specific mobile communication terminal displays the epicenter code number on the display screen (when a call from the communication means is received). (As a result, the epicenter information) can be confirmed, so that high speed can be ensured for the distribution of the epicenter information. In addition, when the communication means receives the command being called from the specific mobile communication terminal side, it immediately transmits the end data for ending the communication with the specific mobile communication terminal, thereby transmitting the call data. Even if there are a large number of cases, the epicenter information can be distributed at high speed as an earthquake warning.

  Here, the “communication means” is electrically connected (via wired or wireless) to a plurality of “mobile communication terminals” and “sensors”. The “communication means” has a communication function with a plurality of “mobile communication terminals” and “sensors”, and may be a communication server alone having, for example, a CPU, a ROM, a RAM, and the like. In addition, the communication server may be a device group including, for example, a general PC and a Sip server, or a device group including a PC, a router, a CTU, an ONU, and a Sip server. Any configuration may be used. Further, the “communication source identification number of the communication means” here may be the identification number of the communication server when the communication means is constituted by a single communication server, or the communication means includes a PC. In the case of a plurality of device groups, it may be a PC identification number (telephone number).

  (2) The said mobile communication terminal character-converts the said epicenter code number received from the said communication means, and displays it on the screen as the said epicenter information, The earthquake warning system characterized by the above-mentioned.

  According to the present invention, since the mobile communication terminal described above converts the epicenter code number received from the communication means into characters and displays it on the screen as the epicenter information, the owner of the specific mobile communication terminal displays the display screen. When checking, you can visually recognize the epicenter information. For example, “A magnitude 7.0 earthquake occurred at 40 ° north latitude and 135 ° longitude” is displayed on the display screen. It should be noted that any character mode such as hiragana, katakana, kanji, numbers, and symbols may be used for character conversion of the epicenter code number.

  (3) The earthquake alarm system, wherein the epicenter information includes an epicenter latitude, an epicenter longitude, an epicenter depth, and a magnitude.

  According to the present invention, since the above-mentioned epicenter information includes the epicenter latitude, the epicenter longitude, the epicenter depth, and the magnitude, the owner of the specific mobile communication terminal can determine the seismic intensity and the earthquake arrival at the current position. Source information necessary to calculate time etc. can be obtained.

  (4) The mobile communication terminal includes storage means for storing geological data at the current position, and calculation means for calculating a seismic intensity or an earthquake arrival time at the current position based on the geological data and the epicenter information. An earthquake warning system comprising:

  According to the present invention, the mobile communication terminal described above includes a storage means for storing geological data at the current position, an arithmetic means for calculating a seismic intensity at the current position or an earthquake arrival time based on the geological data and the epicenter information, Therefore, the owner of the specific mobile communication terminal can visually recognize the earthquake warning. For example, on the display screen of the specific mobile communication terminal, “An earthquake has occurred. The predicted seismic intensity at the current position is 5.0 and the predicted earthquake arrival time is 12:30”.

  (5) The geological data stored in the storage means is updated by GPS according to the current position.

  According to the present invention, since the geological data stored in the storage means described above is updated according to the current position by GPS, even when the mobile communication terminal is moving ( For example, the seismic intensity or the earthquake arrival time at the current position can be calculated more accurately.

  As described above, according to the present invention, when the communication means transmits call data to the mobile communication terminal, the epicenter code number is added after the communication destination identification number, and then the mobile communication terminal side Since the communication with the mobile communication terminal is immediately terminated when the command being called is received from the mobile station, the epicenter information can be distributed to the plurality of mobile communication terminals as an earthquake alarm at high speed.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a system configuration diagram of an earthquake warning system according to an embodiment of the present invention.

  1, the earthquake warning system according to the present embodiment includes a sensor 11, a PC (personal computer) 12, a router 13, a CTU 14, an ONU 15, Sip servers 16 and 17, a gateway server 18, and a SIP proxy. The server 19 and mobile phones (portable IP phones and the like) 21A to 21C are configured. In this embodiment, the PC 12, the router 13, the CTU 14, the ONU 15, and the Sip server 16 constitute “communication means” described in the claims. The Sip servers 16 and 17 and the Sip proxy server 19 are electrically connected via the Internet network. In FIG. 1, only one sensor 11 or PC 12 is shown, but actually, a plurality of sensors 11 may be connected to the PC 12, or a plurality of sets of sensors 11 and communication means may be combined. May be.

  The sensor 11 observes the shaking of the earthquake, and the observation data is sent to the PC 12. As for the number of sensors 11, a large number of sensors 11 can be arranged all over Japan in order to accurately observe earthquakes occurring everywhere in Japan.

  Examples of the PC 12 include a general general-purpose computer. The PC 12 transmits various data (packets) to the Internet network via the router 13, (home terminal) CTU 14, (line terminal) ONU 15, and Sip server 16.

  The router 13 is a communication device that relays and forwards packets flowing on the network, and performs route control and the like for sending packets (including epicenter information) sent from the PC 12 to the Internet network. The CTU 14 is a subscriber network termination device in the local Internet network, and the ONU 15 is a connection device installed at the subscriber's home in the optical fiber communication network. The CTU 14 and ONU 15 can be omitted depending on circumstances.

  The Sip servers 16 and 17 are devices that are arranged via a Sip compatible network and assist processing such as session establishment performed between user agents (hereinafter referred to as UAs). Note that the proxy server, the redirect server, the registrar server, and the like may be physically combined into one, or may be configured separately. Note that the SIP proxy server 19 receives the received request, rewrites the destination according to a certain rule, and performs routing for transmission to the new destination. This SIP proxy server 19 may be omitted depending on circumstances.

  The gateway server 18 converts the UA terminal into an IP packet and sends it to the network, and receives the IP packet from the network and converts it into voice data. The gateway server 18 functions to distribute the data received from the Sip server 17 to any specific mobile communication terminal (for example, the mobile phone 21A) among the mobile phones 21A to 21C.

  The cellular phones 21A to 21C are examples of mobile communication terminals that use analog lines or digital lines. In the present embodiment, a mobile phone is used as the mobile communication terminal, but this may be a PHS, a PDA, or the like. In the present embodiment, three mobile phones are considered, but the number is not limited.

  In FIG. 1, the seismic shaking is observed by the sensor 11, but the seismic source information obtained by sensors installed by the Japan Meteorological Agency throughout Japan may be used, for example.

  FIG. 2 is a system configuration diagram of an earthquake warning system according to another embodiment of the present invention. In FIG. 2, when an earthquake shake is observed by a sensor owned by the Japan Meteorological Agency, the observation result is distributed from the Meteorological Agency earthquake server 30. Therefore, the “communication means” including the PC 12, the router 13, the CTU 14, the ONU 15, and the Sip server 16 may receive the epicenter information based on the sensor observation results from the Japan Meteorological Agency earthquake server 30.

  FIG. 3 is a block diagram showing an electrical configuration of the mobile phone 21 (21A to 21C).

  As shown in FIG. 3, the mobile phone 21 includes a CPU 210, a ROM 211, an EEPROM 212, a RAM 213, an operation button 214, a power switch 215, an LCD drive control circuit 216, an LCD 217, a communication processing unit 218, have.

  The CPU 210 controls each part of the mobile phone 21 and controls the control center of the mobile phone 21. The CPU 210 reads out and executes the initialization program stored in the ROM 211 when the power of the mobile phone 21 is turned on (the power switch 215 is pushed by the owner of the mobile phone 21). Each part of the telephone 21 is initialized. Then, when the CPU 210 finishes executing the initialization program, it reads out an OS (Operating System) program from the ROM 211 and executes it.

  The CPU 210 executing the OS program performs various processes according to the input signal. For example, when the owner of the mobile phone 21 operates the operation button 214, the owner's instruction is specified based on a signal input from the operation button 214, and processing corresponding to the instruction is performed.

  The RAM 213 is a readable / writable memory that functions as a working area (working area) of the CPU 210, and temporarily stores data used by a program executed by the CPU 210.

  The ROM 211 stores various programs executed by the CPU 210, and stores, for example, the above-described initialization program, OS program, e-mail program, and the like.

  Here, the ROM 211 of the mobile phone 21 according to the present embodiment converts the epicenter code number received via the SIP server 17 or the gateway server 18 into characters and displays the screen as seismic source information (number and seismic source information). May be a correspondence table).

  Further, the ROM 211 of the mobile phone 21 according to the present embodiment stores the seismic intensity or the arrival of the earthquake at the current position based on the geological data at the current position and the epicenter information such as the epicenter latitude, the epicenter longitude, the epicenter depth, and the magnitude. A calculation program for calculating time is stored. By executing this calculation program, the CPU 210 can calculate the seismic intensity or the earthquake arrival time at the current position from the epicenter information such as the epicenter latitude, the epicenter longitude, the epicenter depth, and the magnitude.

  As a calculation method for calculating the seismic intensity or the earthquake arrival time from the epicenter information, a general method already announced by the Japan Meteorological Agency can be used. In the present embodiment, the conversion program and the calculation program described above are stored in the ROM 211. However, for example, the conversion program and the calculation program may be stored in the EEPROM 212.

  An EEPROM (Electrically Erasable Programmable Read Only Memory) 212 stores, for example, data for controlling the mobile phone 21 and an address book table such as a telephone number and a mail address. Note that the EEPROM 212 can be replaced with another flash memory such as an EPROM.

  Here, the EEPROM 212 stores the geological data at the current position. This geological data is updated by GPS according to the current position.

  The LCD drive control circuit 216 has a function of receiving a display command from the CPU 210 and displaying an image signal to the LCD 217 based on the display command in order to display characters and images on the LCD 217 of the mobile phone 21.

  Various characters and images are displayed on the LCD 217. For example, information related to the call such as the telephone number input by the owner of the mobile phone 21, the telephone number of the other party who made the call, and the strength of the radio wave transmitted from the wireless base station is displayed.

  The communication processing unit 218 includes a circuit that enables wireless communication with a server (gateway server 18) of the cellular phone 21 such as a contract cellular phone company. For example, it is composed of a baseband IC, an RF (Radio Frequency) IC, or the like. In addition, an antenna is connected to the communication processing unit 218, and the communication processing unit 218 amplifies a signal transmitted from the antenna or amplifies a signal received from the radio base station and provides it to the CPU 210. . Thus, the mobile phone 21 can perform a telephone call and data communication.

  The operation button 214 has a function of converting an instruction by the key operation of the owner of the mobile phone 21 into an electric signal and inputting it to the CPU 210. Although not shown in FIG. 3, the mobile phone 21 has a voice input / output unit including a microphone and a speaker. It also has a DSP (Digital Signal Processor) that converts audio data from an analog signal to a digital signal, or from a digital signal to an analog signal, thereby compressing or expanding the audio data. .

  FIG. 4 is a flowchart for explaining a processing flow in the earthquake warning system according to the present embodiment. Note that “calling side SIP” shown in FIG. 4 indicates the SIP server 16 that is the calling side, and “calling side SIP” shown in FIG. 4 is the mobile phone 21A to 21C that is the calling side. The SIP server 17 (Sip server 17 connected to the gateway server 18 that manages the mobile phones 21A to 21C) is shown. In FIG. 4, the telephone number “0387654321” of the PC 12 is considered as the telephone number of the calling side, and the telephone number “0312345678” of the mobile phone 21A is assumed as the telephone number of the called side (the telephone number of the specific mobile communication terminal). I am thinking.

  In FIG. 4, first, the calling side SIP performs INVITE on the mobile phone 21A (step S1). More specifically, the Sip server 16 transmits call data for establishing communication with the mobile phone 21A based on a command (command) from the PC 12. At this time, in the call data, the telephone number “0312345678” of the mobile phone 21A as the communication destination identification number of the mobile phone 21A and the telephone number “0387654321” of the PC 12 as the communication source identification number of the communication means are included. include.

  In addition, the Sip server 16 adds an epicenter code number (“999888877766”) related to the epicenter information to the rear of the communication destination identification number (“0312345678”) based on a command (command) from the PC 12 (“0312345678899987877666”). ) And send the call data. In this embodiment, the Sip server 16 adds the epicenter code number after the communication destination identification number. For example, the PC 12 adds the epicenter code number after the communication destination identification number. May be. In this embodiment, among the seismic source code numbers, “999” indicates a code number related to latitude, “888” indicates a code number related to longitude, “777” indicates a code number related to epicenter depth, and “ Reference numeral 666 "denotes a code number related to the magnitude.

  Next, when the PC 12 receives a command (“180 ringing”) being called from the Sip server 17 via the Sip server 16 (Step S2), the PC 12 again connects with the mobile phone 21A via the Sip server 16. End data ("BYE") for ending the communication is transmitted (step S3). At this time, the end data reaches the gateway server 18 via the SIP server 17, and is then delivered from the mobile phones 21A to 21C to the mobile phone 21A.

  Finally, the Sip server 17 transmits data ("200 OK") indicating that the communication with the PC 12 is agreed (on-hook) based on a command from the mobile phone 21A (step S4). Thereby, the communication between the mobile phone 21A and the PC 12 (communication means) is terminated. The PC 12 receives the data “200 OK” from the mobile phone 21A in the process of step S4, and then sends the earthquake server 16 to the mobile phone 21B (identification number “0312345679”). Then, the source code number (“9998888777666”) related to the source information is added (“0312345679999888877666”) in the call data and transmitted, and the above-described steps S1 to S4 are repeated. When these processes are completed, an earthquake source code number (“9988887777666”) relating to the epicenter information is sent via the Sip server 16 in order to send an earthquake warning to the mobile phone 21C (identification number “0312345680”). The added ("03123456809999887777666") is included in the call data and transmitted, and the above-described steps S1 to S4 are repeated.

  In this way, by repeating so-called “one-off” for a plurality of mobile phones 21, even when there are a large number of objects to which call data should be transmitted, the epicenter information is distributed at a high speed as an earthquake alarm. be able to. In the present embodiment, the epicenter information is sequentially distributed to the plurality of mobile phones 21A to 21C. However, for example, it may be distributed collectively by multicast. Specifically, the Sip server 17 connected to the gateway server 18 that manages the mobile phones 21A to 21C includes a plurality of ports dedicated to the mobile phones 21A to 21C. Call data is multicast-transmitted toward these ports. As a result, the epicenter information can be distributed to the mobile phones 21A to 21C as an earthquake alarm at a higher speed. Further, when there are a plurality of Sip servers 17, the call data may be multicast-distributed to the plurality of Sip servers 17.

  FIG. 5 is a diagram showing a specific example of contents displayed on the LCD 217 of the mobile phone 21.

  The above-mentioned epicenter code number (“999888877666”) may be displayed on the LCD 217 as it is, but the meaning cannot be understood unless the correspondence between the number and the epicenter information is remembered. Thus, as described above, the ROM 211 of the mobile phone 21 according to the present embodiment converts the epicenter code number (“999888877666”) received via the gateway server 18 into characters and displays it on the screen as epicenter information. Is stored. By executing this conversion program, the CPU 210 can convert the epicenter code number into Japanese, for example, and display it on the screen.

  Further, as described above, the ROM 211 of the mobile phone 21 according to the present embodiment stores the geological data at the current position and the current position based on the epicenter information such as the epicenter latitude, the epicenter longitude, the epicenter depth, and the magnitude. A calculation program for calculating the seismic intensity or the earthquake arrival time is stored. By executing this calculation program, the CPU 210 can calculate the epicenter or the earthquake arrival time at the current position and display the calculation result on the screen.

  FIG. 5A shows a state in which when the mobile phone 21 receives the epicenter code number, it is converted into the corresponding Japanese and displayed on the LCD 217. On the other hand, the ward 5 (b) indicates the epicenter at the current position calculated based on the geological data stored in the EEPROM 212 in addition to the epicenter information such as the epicenter latitude, the epicenter longitude, the epicenter depth, and the magnitude. Or it shows a state where the earthquake arrival time is displayed. Specifically, the LCD 217 displays “The seismic intensity at the current position is expected to be 5, and the arrival time is 12 seconds”.

  The earthquake alarm system according to the present invention is useful as a system capable of delivering the epicenter information as a seismic alarm at a high speed to a plurality of mobile communication terminals.

It is a system configuration figure of an earthquake warning system concerning an embodiment of the invention. It is a system block diagram of the earthquake warning system which concerns on other embodiment of this invention. It is a block diagram which shows the electric constitution of a mobile telephone. It is a flowchart for demonstrating the processing flow in the earthquake warning system which concerns on this embodiment. It is the figure which showed the specific example of the content displayed on LCD of a mobile telephone.

Explanation of symbols

11 Sensor 12 PC
13 router 14 CTU
15 ONU
16, 17 Ship server 18 Gateway server 19 Ship proxy server 21A-21C Mobile phone 30 Japan Meteorological Agency earthquake server

Claims (5)

A plurality of mobile communication terminals;
A sensor that observes the shaking of the earthquake,
A communication means for receiving epicenter information based on the observation result of the sensor and transmitting call data for establishing communication with an arbitrary specific mobile communication terminal among the plurality of mobile communication terminals; In the alarm system,
The call data includes a communication destination identification number of the specific mobile communication terminal and a communication source identification number of the communication means.
The communication means adds an epicenter code number related to the epicenter information after the communication destination identification number, transmits the call data, and receives a command being called from the specific mobile communication terminal side. An earthquake warning system characterized by transmitting end data for ending communication with the specific mobile communication terminal as an opportunity.   2. The earthquake warning system according to claim 1, wherein the mobile communication terminal converts the epicenter code number received from the communication means into a character and displays it on the screen as the epicenter information.   The earthquake alarm system according to claim 1 or 2, wherein the earthquake source information includes an earthquake latitude, an earthquake longitude, an earthquake depth, and a magnitude. The mobile communication terminal has storage means for storing geological data at its current position;
The earthquake warning system according to claim 3, further comprising calculation means for calculating a seismic intensity or an earthquake arrival time at the current position based on the geological data and the earthquake source information.   5. The earthquake warning system according to claim 4, wherein the geological data stored in the storage means is updated according to the current position by GPS.