JP2007042130A - Disaster prevention information-communicating terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a substitutional communication line even if a specific communication line cannot be used to certainly transmit information including information necessary for disaster prevention coping or earthquake focus information at the time of earthquake occurrence. <P>SOLUTION: This disaster prevention information-communicating terminal 11 has one specific communication line and a plurality of substitutional communication lines 12-14 connectable as a communication line for establishing connection with a center device 1 to perform communication, and establishes the connection of the specific communication line to transmit the information. When the specific communication line becomes non-communicable, the terminal 11 establishes the connection of at least one of the plurality of substitutional communication lines from the terminal 11, maintains a state that the connection is kept to be established, and performs the transmission of the information. The terminal 11 occasionally transmits information for confirming a state on the terminal side to the center device 1 at normal times. When receiving the earthquake focus information from the center device 1, the terminal 11 transmits latest information necessary for the disaster prevention coping to the center device 1, and the center device 1 shares the information. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is for disaster prevention information communication that establishes a connection with a center device of a disaster prevention information center serving as a hub for information sharing and transmits information including information on the epicenter and information necessary for disaster prevention at the time of an earthquake. Regarding terminals.

  FIG. 2 is a diagram illustrating a conventional configuration example of a disaster prevention information communication system. As a conventional disaster prevention information communication system, as shown in FIG. 2, the disaster prevention information center 21 and terminals of each organization such as the municipality terminal 22, the fire department terminal 23, and the hospital terminal 24 are connected via the Internet 25, and communication is established through a TCP connection. Such a configuration is generally considered. However, if the communication line is congested during a disaster, the local government's disaster response headquarters may not be able to secure the communication line and may not be able to transmit emergency information.

On the other hand, a regional disaster prevention radio system that transmits and receives digital radio signals has been proposed so that control information of the center apparatus and the terminal apparatus can be reliably transmitted between the center apparatus that controls communication and a plurality of terminal apparatuses ( For example, see Patent Document 1). In this system, communication channels composed of combinations of frequency and time slots are divided into channel groups, and are classified into individual users, common users, and high-priority specific users, and line assignment is performed according to traffic and configuration conditions. In addition, the communication signals are classified into control information and mutual communication information to enable mutual communication, and the transmission speed is changed by changing the voice compression / decompression method selection according to the traffic situation, and fewer lines are used. It enables multiple users to share the system.
JP 2001-69095 A

  In the above-mentioned conventional system, communication can be performed according to each phase at the time of disaster and non-disaster, immediately after disaster, at the time of information collection, and at the time of information reduction, so as to improve the utilization efficiency of the limited wireless line However, in the event of an emergency disaster, it is impossible to prevent a situation where even a local government disaster response headquarters cannot secure a communication line with a disaster response organization or the like due to communication infrastructure damage or communication line congestion. As a result, there arises a problem that appropriate information is not transmitted to the disaster response headquarters, making it difficult to respond quickly.

  The present invention solves the above-mentioned problem, and even if a normal communication line cannot be used in an emergency disaster, an alternative communication line can be secured, and information including information necessary for earthquake source information and disaster prevention can be transmitted. It is to ensure that it can be done.

  For this purpose, the present invention establishes a connection with the center device of the disaster prevention information center serving as an information sharing hub, and communicates information including information on the epicenter and information necessary for disaster prevention at the occurrence of an earthquake. A communication terminal comprising one specific communication line and a plurality of alternative communication lines that can be connected as communication lines for establishing communication with the center device and performing communication, and connecting the specific communication lines Establishing and transmitting information, and when the specific communication line becomes incapable of communication, establishes a state in which at least one of the plurality of alternative communication lines is established from the terminal side and the connection remains established Information is sent to the center device at any time to confirm the state of the terminal side including information necessary for disaster prevention, and the epicenter information is transmitted from the center device. When Shin, emergency disaster sometimes sends the latest information required for the disaster corresponding to the center apparatus, and wherein the sharing information of the center apparatus by accessing the center apparatus.

  At the time of the emergency disaster, characterized in that only the difference information for the information already transmitted as the latest information necessary for the disaster prevention response is transmitted to the center device, receiving a communication confirmation packet from the center device at regular intervals, A communication state is monitored by transmitting a reception confirmation packet to the center device, and at least one of the plurality of alternative communication lines is established in the emergency disaster, and the plurality of alternative communication lines are established. At least one of the plurality of alternative communication lines is established by trying to establish a connection at the same time and leaving the first established alternative communication line in a connected state. .

  According to the present invention, a communication line is not secured only at the time of an emergency disaster, but a communication line is secured from a normal time, and even if a normal communication line cannot be secured at an emergency disaster, the communication infrastructure is damaged. It is possible to secure automatic and manual lines in response. In addition, since the state where the connection of the alternative communication line is continuously established is maintained, there is no connection confirmation procedure each time information is transmitted, and the transmission of information in an emergency disaster can be speeded up without waste. Information transmission can be performed efficiently.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram for explaining an embodiment of a disaster prevention information communication terminal according to the present invention. In the figure, 1 is a center device, 2 is a communication satellite receiver, 3-1, 3-2,..., 3-n, 13 is a modem, 4 is a LAN card, 5 is the Internet, 11 is a terminal, and 12 is a built-in LAN. Ports 14, 15 are USB ports, 16 is a mobile phone, and 17 is a satellite phone.

  As shown in FIG. 1 (A), the center device 1 is arranged in a disaster prevention information center and serves as an information sharing hub for terminals 11 (plurality) of each organization such as a local government, a fire department, a hospital, and a shelter. Are connected to a telephone line via a plurality of modems 3-1, 3-2,..., 3-n, and connected to the Internet 5 via a LAN card 4. In addition, the center device 1 receives earthquake occurrence information including epicenter information such as the location of the epicenter, the seismic intensity, and the occurrence time from the communication satellite receiving unit 2, and in the event of an earthquake (emergency disaster), the local government The epicenter information is transmitted to the terminal 11 (plurality) of each organization.

  As shown in FIG. 1 (B), the terminal 11 arranged in each organization such as a local government, fire department, hospital, or shelter is connected to the Internet 5 via a built-in LAN port 12, and further via a modem 13. Alternatively, telephone lines are connected via the USB ports 14 and 15, the mobile phone 16, and the satellite phone 17. As described above, at least two or more connectable communication lines are established as communication lines for establishing communication between the center apparatus 1 and the terminal 11 of each organization such as a local government, fire department, hospital, or shelter. It establishes a communication line connection and transmits information during normal times and emergency disasters.

  With the above system configuration, in normal times, the center device 1 is connected to the terminal 11 of each institution such as a local government, a refuge, a fire department, or a hospital via the Internet 5 to establish communication through a TCP connection. It transmits to the terminal 11 of the institution. Upon receiving the communication confirmation packet, the terminal 11 of each organization transmits the reception confirmation packet to the center device 1 of the disaster prevention information center. As a result, the communication state is monitored, and when a reception confirmation packet cannot be received, an alarm indicating that communication is not possible is output to prevent the communication disabled state from being left unattended.

  In addition to the communication status check, information for confirming the status of each organization including information necessary for disaster prevention is transmitted from the terminal 11 of each organization to the center device 1 of the disaster prevention information center. For example, the local government terminal 11 serving as the disaster response headquarters transmits information such as the presence or absence of decision-makers such as disaster prevention officers, mayors, etc. from time to time. Similarly, the fire station terminal 11 dispatches fire engines, ambulances, etc. For example, the hospital terminal 11 transmits information such as the availability of a bed and the presence or absence of a doctor.

  When an earthquake occurs, the terminal 11 of each organization such as a local government receives the epicenter information from the center device 1 of the disaster prevention center, and transmits the latest information necessary for disaster prevention to the center device 1 of the immediate disaster prevention center. Thereafter, when the earthquake motion arrives and the Internet line is damaged, the terminal 11 is connected to the center device via the modem 13 or via the USB port 14, 15, the mobile phone 16, and the satellite phone 17 via the telephone line. Establish. In this way, the terminals 11 of each institution communicate in a communication environment that can be used after a disaster. Information sharing is performed by accessing a center device serving as an information hub and sharing information with each terminal 11. Enable.

  For example, when the disaster site and each evacuation institution communicate information to the local government, which is the disaster response headquarters, data related to the information is established between the disaster site and each evacuation site between the terminal 11 and the center device 1. Information is sent to the center device 1 through the communication line, and is transmitted to the disaster response headquarters through a communication line between the center device 1 and the terminal 11 of the local government which is the disaster response headquarters.

  When communication between the center apparatus 1 and the terminal 11 becomes impossible, the terminal 11 communicates with the center apparatus via the modem 13 or the telephone line via the USB port 14, 15, the mobile phone 16, or the satellite telephone 17. Establish a connection and secure an alternative communication line. In this case, priority may be given to the plurality of alternative communication lines, and the connections may be established in the priority order. However, in the event of an emergency disaster, simultaneous connection to a plurality of alternative communication lines is possible. It is also possible to attempt to establish the communication line and leave the communication line that has been initially connected in the connected state. By doing so, there is no handshake for establishing a communication line between the center apparatus 1 and the terminal 11 every time when it becomes necessary to transmit information. Can be omitted, speeding up information transmission, improving line utilization efficiency, communication efficiency, and information transmission efficiency.

  For the terminal 11 of each organization such as a local government, evacuation center, fire department, hospital, etc., the center device 1 has a terminal capable of always transmitting information while one alternative communication line is kept connected, and a plurality of alternative communication lines. Any one of them may be established and a terminal that transmits information may be set. In addition, for a terminal that can always transmit information while one alternative communication line is kept connected, regardless of whether or not the communication line that is normally used is incapable of communication, The terminal 11 may be controlled to establish an alternative communication line.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible. For example, in the above embodiment, a communication line connected to a telephone line via a modem or USB port and a mobile phone / satellite phone is used as an alternative communication line, but a PDA (personal digital assistant) or other device is used. A communication line may be secured as an alternative communication line.

  In addition, a communication line connected to the Internet via a LAN card is used as a specific communication line to establish a connection from normal, and information is transmitted between the center device and terminals of each organization. The communication line connected to the telephone line may be a specific communication line, or in short, as long as it has a plurality of communication lines and one of them is a specific communication line from a normal time to transmit information. Good.

  Furthermore, the terminal of each organization takes the difference between the transmitted information and the untransmitted information for the center device at the time of an emergency disaster, performs transmission information editing processing so that only the difference is sent to the center device, Information received and held from each organization may be updated based on the difference information.

It is a figure explaining embodiment of the terminal for disaster prevention information communication concerning this invention. It is a figure which shows the conventional structural example of a disaster prevention information communication system.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Center apparatus, 2 ... Communication satellite receiver, 3-1, 3-2-3-n, 13 ... Modem, 4 ... LAN card, 5 ... Internet, 11 ... Terminal, 12 ... Built-in LAN port, 14, 15 ... USB port, 16 ... mobile phone, 17 ... satellite phone

Claims (5)

A disaster prevention information communication terminal that establishes a connection with the center equipment of the disaster prevention information center, which is an information sharing hub, and transmits information including the epicenter information at the time of an earthquake and information necessary for disaster prevention. A specific communication line that can be connected as a communication line for establishing communication with the center device and performing communication, and a plurality of alternative communication lines, and establishing the connection of the specific communication line to transmit information When the specific communication line becomes unable to communicate, the terminal establishes at least one connection of the plurality of alternative communication lines from the terminal side, and transmits information while maintaining the connection In normal times, information for confirming the state of the terminal side including information necessary for disaster prevention is transmitted to the center device as needed, and when the epicenter information is received from the center device, As the disaster prevention updates required to send to the center apparatus, disaster prevention information communication terminal, wherein the sharing information of the center apparatus by accessing the center apparatus. 2. The disaster information communication terminal according to claim 1, wherein, in the case of an emergency disaster, only the difference information with respect to information that has already been transmitted as the latest information necessary for the disaster prevention response is transmitted to the center device. The disaster prevention information communication terminal according to claim 1, wherein a communication confirmation packet is received from the center device at regular intervals, and a communication state is monitored by transmitting a reception confirmation packet to the center device. The terminal for disaster prevention information communication according to claim 1, wherein at least one of the plurality of alternative communication lines is established at the time of the emergency disaster. Attempts to establish connections to the plurality of alternative communication lines at the same time, and establishes a connection of at least one of the plurality of alternative communication lines by leaving the alternative communication line with which the connection is established first in a connected state The terminal for disaster prevention information communication according to claim 1 or 4, characterized in that:

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