JP2007298448A - Disaster information acquisition distribution device and program thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To distribute a high accuracy disaster prompt report information, without causing large distribution delays. <P>SOLUTION: A device obtains decision by majority logical values DA, by taking seismic intensity measurement values I from a plurality of disaster sensors SS1-SSn which are arranged separately in a survey target area, and determines the size of earthquake, by receiving the disaster prompt report information which is transmitted from a third-party system, then acquires information DAB expressing the possibility of the earthquake generation by AND processing on determination value DB of the earthquake size and the decision by majority logical values DA, and establishes and maintains each communication link between addressing terminals M1-Mm via a communication network NW1, using the information expressing the earthquake generation DAB="1" as a trigger. In this state, the device generates the disaster support information or the like, by acquiring the detailed information expressing the earthquake generation condition and information or the like that expresses damage state, and distributes the disaster information, including these information, to each of addressing terminals M1-Mm via the communication link. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a disaster information acquisition and distribution device used in a disaster action support system that supports user behavior and management of related organizations when a disaster such as an earthquake occurs.

  It is known that an earthquake wave has an initial fine movement (P wave) and a main movement (S wave). Of these, it is the S wave that shakes greatly that actually causes damage. However, there is a difference in propagation speed between the P wave and the S wave, and the S wave arrives later than the P wave. Therefore, in the past, utilization of earthquake nowcast information that uses this arrival time difference to quickly report the occurrence of an earthquake before the arrival of the S wave has been studied.

  The speed of the S wave is 3 to 4 kilometers per second, about half that of the P wave. For this reason, it takes about 10 seconds to reach the S wave at a point 50 km away from the epicenter, and about 1 minute at a point 200 km away. By using this time, it is possible for ordinary individuals to take measures such as turning off the stove or evacuating under a desk or in a strong building.

  Specifically, the Japan Meteorological Agency installs a seismometer for breaking news called “Nowcast Seismometer” nationwide, and when a P wave is detected near the epicenter, it predicts the location of the epicenter, the magnitude of the earthquake, and the seismic intensity at each location. Yes. Then, a mechanism for notifying the predicted information as an earthquake early warning to a personal computer or the like in the national or local government using the communication infrastructure such as the Internet or satellite communication before the arrival of the S wave is examined. This Nowcast Earthquake Bulletin may be provided to general users widely through government agencies, broadcasters, telecommunications carriers, etc. in the future (see, for example, Non-Patent Document 1 and Non-Patent Document 2).

"Hello! Is the Japan Meteorological Agency (JMA)!" 2004 January 3, pp Meteorological Agency General Affairs Division, Public Relations Office http://www.kishou.go.jp/jma-magazine/0401/index.html

ITpro Network News “Alarms before shaking in the earthquake, Japan Meteorological Agency expands nationwide during FY 2005” Nikkei Business Publications http // itpro.nikkeibp.co.jp / free / NCC / NEWS / 20050420/159737 /

  However, the agency responsible for the disclosure of weather information said, “The current seismic intensity bulletin has human intervention in addition to the computer, and the accuracy is raised based on the data, so it is possible to eliminate the wrong information clearly. In the preliminary report, the measured information basically flows as it is, so it is necessary to determine whether it is possible to distribute accurate information with high accuracy. For this reason, it is problematic in terms of accuracy of information to distribute nowcast earthquake information as it is to general users.

  On the other hand, it is also considered that information confirmation processing is performed on Nowcast earthquake information and information after the confirmation processing is distributed. However, if time is taken for the confirmation processing, it becomes difficult to distribute the earthquake early warning until the S wave arrives, and the effectiveness as the earthquake early warning is greatly reduced. Further, it is preferable to notify the occurrence of a disaster including the disaster occurrence status and evacuation support information. However, when a disaster occurs, congestion control is performed on a wired or wireless public communication line with a high probability. For this reason, if the distribution of the breaking information is further delayed in order to include the disaster occurrence status, evacuation support information, etc., the distribution of the earthquake breaking information itself may be difficult due to the influence of the congestion control.

  The present invention has been made paying attention to the above circumstances, and its main object is to provide a disaster information acquisition / delivery device and a program thereof capable of delivering highly accurate disaster early warning information without causing a significant delivery delay. There is.

  In order to achieve the above object, one aspect of the present invention is a disaster information acquisition / distribution device connected to a plurality of sensors that are distributed in a monitored area and detect abnormal phenomena related to weather and output the detection results. Then, the disaster early warning information transmitted by the third party organization is received, and the detection result of the abnormal phenomenon output from the plurality of sensors is majority processed to determine whether or not the abnormal phenomenon has occurred. Then, the possibility of the occurrence of the disaster is determined by determining the possibility of the occurrence of the disaster based on the information indicating the occurrence state of the abnormal phenomenon included in the disaster early warning information and the information indicating the presence / absence of the occurrence of the abnormal phenomenon determined above. When it is determined that there is a disaster, disaster information for informing the occurrence of the disaster is generated, and the disaster information is transmitted to a notification destination terminal registered in advance via a communication network. .

  Therefore, disaster information is generated and distributed in consideration of both the disaster early warning information transmitted by the third party organization and the detection results of abnormal phenomena output from a plurality of sensors distributed in the monitoring target area. For this reason, the accuracy of disaster information can be improved as compared with the case of relying solely on disaster bulletin information. In addition, the detection result of the abnormal phenomenon output from the plurality of sensors is determined by a relatively simple logic process called a majority process. For this reason, the time required for processing is very short, and it is possible to distribute disaster information without causing a significant delay.

The present invention is also characterized by having the following various functions.
In the first function, when distributing disaster information, access information of a disaster information collection server device installed in an area other than the monitoring target area is stored in a memory in advance, and the access information stored in the memory is stored in the memory. Originally, the disaster information collection server device installed in an area other than the monitoring target area is accessed and the disaster information is transmitted.
In this way, disaster information is sent to the disaster information collection server device installed in a region other than the monitoring target region. Therefore, even if congestion control is subsequently performed on the communication network in the monitoring target region, the influence of the congestion control is reduced. It becomes possible to distribute disaster information from a disaster information collection server device in an area other than the monitoring target area that is difficult to receive.

  In the second function, when disaster information is distributed, when it is determined that there is a possibility of disaster occurrence, first, a communication link is established between the notification destination terminal and the disaster information collection server device via a communication network. The communication link is established and held until the notification destination terminal or the disaster information collection server device is released. Then, the disaster information generated thereafter is transmitted to the notification destination terminal or the disaster information collection server device via the established communication link.

  The third function is a communication link via a communication network between a notification destination terminal or a disaster information collection server device when it is determined that a disaster may occur when distributing disaster information. Establish. Then, disaster information is generated after the communication link is established, and the generated disaster information is transmitted to the notification destination terminal or the disaster information collection server via the communication link. After the transmission of the disaster information, the communication is performed. The link is released.

  According to these functions, before congestion control is started in the communication network due to the occurrence of a disaster, a communication link is established with the notification destination terminal or the disaster information collection server device. Until the terminal or server device is opened, or the distribution of disaster information is completed. Therefore, even if the delivery of disaster information is delayed and congestion control is started before the delivery in a line connection type data communication network, the disaster information can be reliably delivered. In other words, since the distribution of disaster information can be delayed after the start of congestion control, it is possible to spend a sufficient amount of time to generate disaster information, which provides high accuracy and detailed information such as evacuation support information. It is possible to distribute it.

The fourth function controls the power supply to the distribution means to be on for a period from the time when it is determined that there is a possibility of a disaster to the time when the communication link is released and to be off for other periods. To do.
In this way, power is supplied only when disaster information needs to be generated and distributed, and power supply is cut off during other disaster standby periods. For this reason, it becomes possible to reduce the power consumption by the determination means as much as possible. This effect is particularly effective when the disaster information acquisition / distribution apparatus uses a battery as a power source.

  In short, according to the present invention, disaster information considering both disaster early warning information transmitted by a third-party organization and majority values of detection results of abnormal phenomena output from a plurality of sensors distributed in a monitored area. Is generated and distributed. Therefore, it is possible to provide a disaster information acquisition / distribution device and its program capable of distributing disaster early warning information with high accuracy without causing a significant distribution delay.

Embodiments according to the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is a block diagram showing a configuration of a disaster bulletin cooperation system including a disaster information acquisition / distribution device according to the first embodiment of the present invention. In this embodiment, a case where information relating to an earthquake disaster is acquired and distributed will be described as an example.

  A plurality of disaster sensors SS1 to SSn are distributed in the earthquake monitoring target area. In addition, a disaster information acquisition / distribution device TS is arranged in this earthquake monitoring target area. The disaster information acquisition / distribution device TS is connected to the communication network NW1 and can establish communication links with a plurality of destination terminals M1 to Mm via the communication network NW1.

The disaster sensors SS1 to SSn are seismic intensity measurement sensors used for earthquake observation, and are configured as follows, for example. FIG. 2 is a block diagram showing the functional configuration.
That is, each of the disaster sensors SS1 to SSn includes an accelerometer 21x, 21y, 21z provided corresponding to each of the X-axis, Y-axis, and Z-axis directions representing three dimensions, and Fourier transform processing units 22x, 22y, 22z, correction filters 23x, 23y, and 23z, and inverse Fourier transform processing units 24x, 24y, and 24z, and a vector composition processing unit 25 and a seismic intensity calculation unit 26.

  Each of the accelerometers 21x, 21y, and 21z measures acceleration in each direction of the X axis, the Y axis, and the Z axis when an earthquake occurs. The Fourier transform processing units 22x, 22y, and 22z respectively convert the time waveform of the acceleration of the seismic wave measured by the accelerometers 21x, 21y, and 21z into a spectrum waveform in the frequency domain by Fourier transform. The correction filters 23x, 23y, and 23z perform the filtering process on the spectrum waveforms converted by the Fourier transform processing units 22x, 22y, and 22z, respectively, thereby correcting the influence due to the difference in the period of the seismic wave. The inverse Fourier transform processing units 24x, 24y, and 24z respectively convert the spectrum waveforms corrected by the correction filters 23x, 23y, and 23z into time-domain waveforms by inverse Fourier transform processing. The vector synthesis processing unit 25 synthesizes the time waveform converted by the inverse Fourier transform processing units 24x, 24y, and 24z in a vector manner. The seismic intensity calculator 26 calculates the seismic intensity based on the waveform synthesized by the vector synthesis processor 213.

  FIG. 3 is a flowchart showing the seismic intensity measurement processing procedure and processing contents by the disaster sensors SS1 to SSn. The disaster sensors SS1 to SSn first record the time waveform of the acceleration in each direction of the X-axis, Y-axis and Z-axis of the seismic wave in step S31. In step S32, the recorded time waveform of acceleration is converted into a spectrum waveform in the frequency domain by Fourier transform, and filtering processing is performed on the spectrum waveform in step S33. Thereby, the influence by the period of the seismic wave is corrected. Subsequently, in step S34, the corrected spectrum waveform is returned to a time domain waveform by inverse Fourier transform. Next, in step S35, the time domain waveforms obtained for each of the X-axis, Y-axis, and Z-axis directions are vector-synthesized, and the seismic intensity is calculated as follows based on the vector-synthesized time waveform. calculate.

That is, first, in step S36, A is calculated such that when the total time during which the absolute value of the vector waveform is greater than a certain value A is calculated, this is exactly 0.3 seconds. Next, in step S37, A obtained in step S36 is changed to A.
I = 2logA + 0.94 (1)
The measured seismic intensity I is calculated by substituting into. In addition, the second decimal place after the calculated I is rounded down, and the rounded down value is output as the measured seismic intensity.

Next, the disaster information acquisition / distribution apparatus TS is configured as follows.
That is, as shown in FIG. 1, the disaster information acquisition / distribution device TS includes a majority output unit 11, a disaster information reception unit 12, a logical product output unit 13, a disaster situation acquisition unit 14, a disaster information transmission unit 15, And a power supply switching device 16.

  The majority decision output unit 11 takes in the calculated seismic intensity values I from the plurality of disaster sensors SS1 to SSn described above, and performs binary determination on the seismic intensity calculated values I based on the threshold value L, respectively. Then, the majority decision of these decision logic values is taken, and the logic value after the majority decision processing is output as information indicating the occurrence of an earthquake.

  The disaster bulletin receiving unit 12 receives disaster bulletin information such as nowcast earthquake bulletin information transmitted from a weather observation organization such as the Japan Meteorological Agency, a third party such as a local government, or a broadcasting station. When the disaster bulletin information is received, this disaster bulletin information is given to the logical product output unit 13. As a communication medium for transmitting the disaster early warning information, for example, terrestrial digital broadcasting or a satellite communication line is used.

  The terrestrial digital broadcasting “ISDB-T (integrated service digital broadcasting-terrestrial)” includes so-called one-segment broadcasting as a broadcasting service for portable devices. In ISDB-T, a 6 MHz broadcast wave is divided into 13 bands, and a carrier modulation scheme and a convolutional code coding rate can be selected for each divided band. Each divided band is called a segment, and a band for one segment is prepared as a guard band, so the band of one segment is 429 kHz. One-segment broadcasting is a broadcasting service that uses this one segment.

  The profile of one-segment broadcasting was formulated by ARIB (Radio Industry Association) in December 2004. H.264 / MPEG-4AVC is used as a video encoding method, and CCI (Copy Control Information) is used for copy control. Regarding access to personal information stored in a non-volatile memory (NVRAM), there are restrictions on the exchange with the communication server. Management of such information is to be organized at each affiliated station after limiting the accessible servers. In BML (Broadcast Markup Language), functions that have been used for HDTV broadcasting are partially expanded and options are provided. By using this option, for example, it is possible to send a blank e-mail to a broadcasting station for application, add program information to a schedule book, etc., and distribute disaster information.

  When the disaster bulletin information is received by the disaster bulletin receiving unit 12, the logical product output unit 13 extracts information representing the magnitude of the earthquake from the disaster bulletin information, compares this information with the threshold value K, and It is determined whether or not the scale of is greater than or equal to a threshold value K. Then, when the magnitude of the earthquake is greater than or equal to the threshold value K, a logical product representing the determination result and a logical value representing the occurrence of the earthquake determined by the majority output unit 11 are obtained, and the logical product The value is output as information indicating the possibility of disaster occurrence.

  The disaster status acquisition unit 14 generates detailed information indicating the magnitude of the earthquake based on the seismic intensity calculation values I of the disaster sensors SS1 to SSn, information indicating the disaster status in the monitoring target area, evacuation routes, and the like The disaster support information that represents is generated. Then, detailed information indicating the occurrence status of these disasters is included in the disaster information.

  The disaster information transmission unit 15 is connected to each of the destination terminals M1 to Mm registered in advance in the memory as a disaster information notification destination when the information indicating the possibility of disaster occurrence is output from the logical product output unit 13. Communication links are established through the communication network NW1. These communication links are held until the destination terminals M1 to Mm are opened. And the disaster information produced | generated by the said disaster situation acquisition part 14 is each transmitted to each destination terminal M1-Mm via the said communication link.

  The power supply switching device 16 starts supplying power to the disaster status acquisition unit 14 and the disaster information transmission unit 15 when information indicating the possibility of disaster occurrence is output from the logical product output unit 13 as a trigger. To do. Then, when all the communication links are opened in the disaster information transmission unit 15, power supply to the disaster situation acquisition unit 14 and the disaster information transmission unit 15 is cut off.

  Note that the functions of the majority output unit 11, the disaster information receiving unit 12, the logical product output unit 13, the disaster situation acquiring unit 14, and the disaster information transmitting unit 15 are used to convert application programs into a central processing unit (CPU). It is also possible to realize this by executing it.

  The destination terminals M1 to Mm are registered for use with, for example, a personal computer or a portable terminal used by a disaster prevention person in charge of an administrative body or a corporation, or a disaster information notification service provided by the disaster prevention information acquisition / distribution device TM. It consists of a general user's personal computer or portable terminal.

  The communication network NW1 includes, for example, an IP (Internet Protocol) network represented by the Internet, and a plurality of access networks for accessing the IP network. As the access network, for example, a DSL (Digital Subscriber Line) or a wired subscriber network using an optical transmission line, a LAN (Local Area Network), a wireless LAN, a mobile communication network, or a dedicated line network is used.

Next, the operation of the disaster information acquisition / distribution device TM configured as described above will be described. FIG. 4 is a flowchart showing the processing procedure and processing contents.
In the disaster information acquisition / distribution device TM during the earthquake monitoring period, operating power is supplied only to the majority output unit 11, the disaster early warning reception unit 12, and the logical product output unit 13, and the disaster status acquisition unit 14 and the disaster information transmission unit 15, the supply of operating power is interrupted by the power supply switching device 16. In other words, during the earthquake monitoring period, the disaster situation acquisition unit 14 and the disaster information transmission unit 15 are set in a non-operating state so that power is not consumed.

  In this state, the majority output unit 11 periodically fetches the calculated seismic intensity values I from the disaster sensors SS1 to SSn in step S41, and compares the acquired seismic intensity calculated values I with the threshold value L in step S42. The binary judgment is made. As a result, “1” is output when the seismic intensity calculation value I is equal to or greater than the threshold value L, and “0” is output when the seismic intensity calculation value I is smaller than the threshold value L.

  In step S43, a majority process is performed on each of the determination logical values, and a logical value DA representing the processing result is output to the logical product output unit 13 as information indicating the occurrence of an earthquake. For example, if the seismic intensity calculation value I output from (n / 2 + 1) or more disaster sensors among n disaster sensors SS1 to SSn is “1”, “1” indicating that an earthquake has occurred is set. Output. On the other hand, if the number of disaster sensors whose seismic intensity calculation value I is “1” is n / 2 or less, “0” indicating that no earthquake has occurred is output.

  In general majority voting processing, the larger one of the input logical values “1” and “0” is often used as the output value. "1" is output when the number of disaster sensors equal to or greater than P (≠ (n / 2 + 1)) preset by the operator, and "0" is output when the number is less than P May be. That is, the determination threshold value P for occurrence of an earthquake can be set to an arbitrary value.

  On the other hand, the disaster information receiving unit 12 periodically monitors the arrival of disaster bulletin information such as Nowcast earthquake bulletin in step S44. When the disaster bulletin information is received, the received disaster bulletin information is supplied to the logical product output unit 13. The reception monitoring period of the disaster early warning information is set to the same value as the acquisition period of the earthquake measurement value I by the majority output unit 11 described above.

  When the logical product output unit 13 receives the disaster bulletin information from the disaster bulletin reception unit 15, the logical product output unit 13 extracts information representing the magnitude of the earthquake from the disaster bulletin information in step S 45, and the magnitude of the earthquake is equal to or greater than the threshold value K. Is determined to obtain a determination value DB. In step S46, a logical product of the determination value DB and the determination value DA output from the majority output unit 11 is obtained, and the logical product value DAB is output as information indicating the possibility of occurrence of a disaster.

  For example, the disaster breaking information is received, the magnitude of the earthquake included in the disaster breaking information is greater than or equal to the threshold value K, and the majority decision value DA of each earthquake measurement value I output from the disaster sensors SS1 to SSn is If it is “1”, the logical product output unit 13 outputs “1” representing the occurrence of an earthquake. On the other hand, even if disaster bulletin information is received, the magnitude of the earthquake does not reach the threshold value K, or each of the disaster sensors SS1 to SSn output even if the magnitude of the earthquake in the disaster bulletin information is equal to or greater than the threshold value K When the majority decision value DA of the earthquake measurement value I is “0”, the logical product output unit 13 regards the earthquake early warning information as uncertain information and outputs “0”. Further, even if the majority decision value DA of each earthquake measurement value I output from the disaster sensors SS1 to SSn becomes “1”, the magnitude of the earthquake is the threshold value even if the disaster early warning information is not received or is received. If it is less than K, the logical product output unit 13 regards the earthquake measurement values of the disaster sensors SS1 to SSn as uncertain information and outputs “0”.

  That is, in the logical product output unit 13, the earthquake magnitude judgment value DB notified by the disaster bulletin information transmitted by the third party organization and the earthquakes outputted from the plurality of disaster sensors SS1 to SSn distributed in the monitored area. Considering both the majority logic value DA of the measured value I, the possibility of occurrence of an earthquake is determined. For this reason, determination with higher accuracy is possible as compared with the case where determination is made only with either one of the information.

  When the logical product value DAB is output from the logical product output unit 13, the power supply switching device 16 determines whether the logical product value DAB is "1" or "0" in step S47. As a result of this determination, if it is “0”, it is regarded as uncertain earthquake information and the process returns to step S41, and the processes in steps S41 to S46 described above are repeated.

  On the other hand, it is assumed that the logical product value DAB is “1”. In this case, the power supply switching device 16 regards that an earthquake has occurred, and proceeds to step S48, where it starts supplying operating power to the disaster situation acquisition unit 14 and the disaster information transmission unit 15. As a result, the disaster situation acquisition unit 14 and the disaster information transmission unit 15 each start to operate.

  When the operation is started, the disaster information transmitting unit 15 first reads out address information of a plurality of destination terminals M1 to Mm registered in advance as distribution destinations of earthquake information from a memory (not shown) in step S49, and according to the read address information. Communication links are established between the destination terminals M1 to Mm via the communication network NW1. This communication link is established using a line connection type communication network.

  Next, the disaster situation acquisition part 14 acquires the information showing a disaster situation in step S50, and produces disaster information. For example, the calculated value I of the seismic intensity is taken from each of the disaster sensors SS1 to SSn to generate detailed information indicating the magnitude of the earthquake, and the management facility is used by using a camera (not shown) installed in the monitoring target location in advance. Video data that captures the situation of disasters such as disaster sites. In addition, information indicating whether or not a building such as a building or a bridge is damaged or collapsed is acquired from a separately provided sensor. And based on these acquired information, the disaster support information showing the information which shows a disaster situation, the evacuation route, etc. is produced | generated. These pieces of information are included in the disaster information. This disaster information is composed of, for example, a voice message and video data.

  Subsequently, in step S51, the disaster information transmission unit 15 transmits the disaster information generated by the disaster situation acquisition unit 14 to each of the destination terminals M1 to Mm via the communication link established previously. Then, after the transmission of the disaster information, the communication link is released. The communication link may be held until a reception confirmation response is returned from the destination terminals M1 to Mm, and may be opened after confirming the return of the reception confirmation response.

  It is also possible to distribute different disaster information for each destination terminal M1 to Mm without distributing the same disaster information to each destination terminal M1 to Mm. For example, the installation position or current position of each of the destination terminals M1 to Mm is periodically updated and managed, and information indicating the disaster situation corresponding to the installation position or the current position and the evacuation according to the installation position or the current position, respectively. Generate disaster support information that represents routes. Then, the disaster information including the generated information is transmitted to the corresponding destination terminals M1 to Mm.

  As described above, in the first embodiment, the seismic value I is taken from each of the plurality of disaster sensors SS1 to SSn distributed in the monitoring target area, and the majority output logical value DA is obtained by the majority output unit 11. The disaster bulletin information received by the third party is received by the disaster bulletin receiving unit 12 to determine the magnitude of the earthquake, and the decision value DB of the earthquake magnitude and the majority logic value DA are logically output by the logical product output unit 13. Information DAB indicating the possibility of the occurrence of an earthquake is obtained by product processing.

  Therefore, the majority decision logical value of the earthquake magnitude judgment value DB notified by the disaster bulletin information transmitted by the third party organization and the earthquake measurement values I outputted from the plurality of disaster sensors SS1 to SSn distributed in the monitored area. Considering both DA and the possibility of occurrence of an earthquake will be determined. For this reason, compared with the case where it relies on one of disaster early warning information or the earthquake measurement value I of disaster sensor S1-SSn, determination with higher accuracy is attained.

  In the first embodiment, when the information DAB = “1” indicating the occurrence of an earthquake is output from the logical product output unit 13, the disaster information transmission unit 15 first receives a destination via the communication network NW1 using this as a trigger. A communication link is established and held with each of the terminals M1 to Mm. In this state, the disaster status acquisition unit 14 acquires detailed information indicating the occurrence status of the earthquake and information indicating the status of the disaster to generate disaster support information and the like. Distribution is made to each of the destination terminals M1 to Mm via a communication link.

  Therefore, even if congestion control is started in the communication network NW1 before the disaster information is distributed, the disaster information can be reliably distributed. In addition, since it is not necessary to complete the distribution of disaster information before congestion control is started, it is possible to spend enough time to generate disaster information, which provides high accuracy and details such as evacuation support information High-efficiency information including various information can be distributed.

  Furthermore, in the first embodiment, the power supply switching device 16 uses the information DAB = “1” representing the occurrence of the earthquake output from the logical product output unit 13 as a trigger, and the disaster situation acquisition unit 14 and the disaster information transmission unit 15. The operation power supply is started. For this reason, the disaster status acquisition unit 14 and the disaster information transmission unit 15 are in an operating state only when it is necessary to generate and distribute disaster information, and in an inactive state during other periods. Therefore, it is possible to reduce the standby power consumption of the disaster information acquisition / distribution device TM as much as possible. This effect is particularly effective when the disaster information acquisition / distribution apparatus TM uses a battery as a power source.

(Second Embodiment)
According to a second embodiment of the present invention, when an occurrence of an earthquake is detected in a disaster information acquisition / distribution device, the disaster information acquisition / distribution device is out of the disaster area before the congestion control is started in the communication network of the disaster area. The disaster information is transferred to the disaster information collection server existing in the disaster area, and the disaster information in the disaster area can be distributed from the disaster information collection server outside the disaster area.

  FIG. 5 is a block diagram showing a configuration of a disaster bulletin cooperation system including a disaster information acquisition / distribution apparatus according to the second embodiment of the present invention, and FIG. 6 is a timing diagram for explaining the operation of the system. Since the basic configuration of the disaster information acquisition / distribution apparatus is almost the same as that shown in FIG. 1, illustration and detailed description thereof are omitted here.

  Disaster information acquisition devices TS1 to TSi are arranged in each monitoring target area, and these disaster information acquisition devices TS1 to TSi can be connected to the destination terminals M1 to Mm via the communication network NW2. In addition, disaster information collection servers SV1 to SVj are distributed in each monitored area or non-monitored area, and the disaster information acquisition devices TS1 to TSi are connected to these disaster information collection servers SV1 to SV1 via the communication network NW2. Connection to SVj is also possible.

  Each of the disaster information acquisition devices TS1 to TSi includes a transfer destination information table. This transfer destination information table stores information indicating the area where the servers SV1 to SVj are installed in association with the identification information of the disaster information collection servers SV1 to SVj. In addition, the disaster information acquisition devices TS1 to TSi include a disaster area identification unit. The disaster area identification unit determines the disaster area based on information indicating the magnitude of the earthquake included in the disaster bulletin information transmitted from a third party organization. Note that the function of the affected area specifying unit can be realized by causing the CPU to execute an application program.

  With this configuration, in the disaster information acquisition devices TS1 to TSi, when the logical product value DAB = "1" representing the occurrence of the earthquake is output from the logical product output unit 13 at time T0 as shown in FIG. With this as a trigger, the disaster information transmission unit 15 establishes a communication link with the disaster information collection servers SV1 to SVj existing outside the disaster area at time Ta. This communication link establishment control is performed as follows. That is, first, an area outside the disaster area is identified based on the determination result by the disaster area identification unit. Next, the address information of the disaster information collection servers SV1 to SVj existing in the area outside the disaster area is read from the transfer destination information table. Then, the communication network NW2 is dialed up according to the read address information, thereby establishing communication links with the disaster information collection servers SV1 to SVj existing outside the disaster area. These communication links are held until the disaster information collection servers SV1 to SVj are opened.

  Next, in the disaster information acquisition devices TS1 to TSi, the disaster situation acquisition unit 14 acquires information indicating the disaster situation and creates disaster information. For example, in the same manner as in the first embodiment, the detailed information indicating the magnitude of the earthquake is generated by taking the calculated seismic intensity I from each of the disaster sensors SS1 to SSn, and the camera previously installed at the monitoring target location (Not shown) is used to capture video data that captures the state of damage at a management facility or disaster occurrence site. In addition, information indicating whether or not a building such as a building or a bridge is damaged or collapsed is acquired from a separately provided sensor. And based on these acquired information, the disaster support information showing the information which shows a disaster situation, the evacuation route, etc. is produced | generated. These pieces of information are inserted into the disaster information.

  Subsequently, the disaster information transmission unit 15 transmits the disaster information generated by the disaster situation acquisition unit 14 to each of the disaster information collection servers SV1 to SVj at the time Tb via the communication link established previously. . When the disaster information collection servers SV1 to SVj receive the disaster information, they return a reception confirmation response at an arbitrary timing. The disaster information transmission unit 15 opens the communication link after confirming the return of the reception confirmation response. The communication link may be opened after the transmission of disaster information.

  Therefore, the disaster information is subsequently distributed from the disaster information collection servers SV1 to SVj to the destination terminals M1 to Mm registered in advance, and further to the terminal of the general user who transmitted the inquiry request. For this reason, even if the communication network NW2 is subjected to congestion control in the disaster-stricken area, it is possible to distribute disaster information without being greatly affected by the congestion control.

  In the above description, the disaster information acquisition devices TS1 to TSi are connected to the disaster information collection servers SV1 to SVj when the logical product output unit 13 outputs the logical product value DAB = "1" indicating the occurrence of the earthquake. In the above description, the communication link is established and the disaster information is transferred. However, similarly to the first embodiment, the communication link is established between the destination terminals M1 to Mm and the disaster information is distributed. You may do it.

  As described above, in the second embodiment, when the occurrence of an earthquake is detected in the disaster information acquisition and distribution devices TS1 to TSi, the disaster information acquisition and distribution devices TS1 to TSi exist outside the disaster area. A communication link is established with the servers SV1 to SVj, and disaster information is transferred to the disaster information acquisition and distribution devices TS1 to TSi via this communication link. Therefore, before the congestion control is started in the communication area NW2 in the disaster area, the disaster information can be transferred to the disaster information collection servers SV1 to SVj existing outside the disaster area, and even after the congestion control is started. The disaster information of the disaster area can be distributed from the disaster information collection servers SV1 to SVj outside the disaster area.

(Other embodiments)
In the above-described embodiment, the case where disaster information is transmitted once has been described as an example, but at the time when the disaster bulletin information is received, the bulletin information is first distributed in consideration of the detection result of the disaster sensor. Then, the communication link established at the time of this bulletin distribution is held, and then detailed information such as the occurrence status of disaster and evacuation support information is generated, and this detailed information is additionally distributed via the communication link. It may be. In this way, in the event of an earthquake, it is possible to deliver a bulletin at the earliest possible timing before the arrival of the S wave from the arrival of the P wave, and by further distributing detailed information after the earthquake has converged, Detailed information necessary for evacuation and the like can be distributed to the user at an appropriate timing.

  In each of the above embodiments, the case where earthquake disaster is monitored and the disaster information is distributed has been described as an example. However, flood damage, landslide disaster, fire, eruption, photochemical smog, other toxic gases, radioactivity, etc. The present invention is also applicable when distributing disaster information. For example, for flood damage, flood level warnings, flood warnings, evacuation preparation information, evacuation warnings sent from third parties such as the Japan Meteorological Agency and river management offices are used as disaster sensors. This can be realized by receiving recommendations as disaster bulletin information.

In addition, the configuration of the disaster information acquisition / distribution device, its control procedure and control content, the configuration of the disaster sensor, the type of communication network, the type of destination terminal, etc. can be variously modified without departing from the scope of the present invention. .
In short, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in each embodiment. Furthermore, you may combine suitably the component covering different embodiment.

It is a block diagram which shows the structure of the disaster bulletin cooperation system provided with the disaster information acquisition delivery apparatus concerning 1st Embodiment of this invention. It is a block diagram which shows the function structure of the disaster sensor used with the system shown in FIG. It is a flowchart which shows the processing procedure and processing content of the disaster sensor shown in FIG. It is a flowchart which shows the process sequence and process content of the disaster information acquisition delivery apparatus shown in FIG. It is a block diagram which shows the structure of the disaster bulletin cooperation system provided with the disaster information acquisition delivery apparatus concerning 2nd Embodiment of this invention. FIG. 6 is a timing chart for explaining a disaster information distribution operation in the system shown in FIG. 5.

Explanation of symbols

  TM, TM1 to TMi ... disaster information acquisition / delivery device, SS1 to SSn ... disaster sensor, M1 to Mm ... destination terminal, SV1 to SVj ... disaster information collection server, NW1, NW2 ... communication network, 11 ... majority output unit, 12 ... Disaster bulletin news receiving unit, 13 ... logical product output unit, 14 ... disaster situation acquisition unit, 15 ... disaster information transmission unit, 16 ... power supply switching device.

Claims (9)

A disaster information acquisition / distribution device connected to a plurality of sensors that are distributed in a monitored area and detect abnormal phenomena related to weather and output the detection results,
First determination means for performing majority processing on detection results of abnormal phenomena output from the plurality of sensors to determine whether or not an abnormal phenomenon has occurred;
Receiving means for receiving disaster bulletin information including information indicating the occurrence of abnormal phenomena related to weather, transmitted by a third party organization,
When the disaster bulletin information is received, based on the information indicating the occurrence state of the abnormal phenomenon included in the disaster bulletin information and the information indicating the presence or absence of the occurrence of the abnormal phenomenon determined by the first determination unit Second determination means for determining the possibility of occurrence of a disaster;
When it is determined by the second determination means that there is a possibility of occurrence of a disaster, disaster information for notifying the occurrence of the disaster is generated, and the generated disaster information is stored in a pre-registered notification destination. A disaster information acquisition and distribution apparatus comprising: distribution means for transmitting to a terminal via a communication network. The delivery means includes
A memory storing access information of a disaster information collection server device installed in an area other than the monitored area;
Based on the access information stored in the memory, the disaster information collection server device installed in an area other than the monitored area is accessed via the communication network, and the disaster information collection server apparatus generates the information The disaster information acquisition / delivery apparatus according to claim 1, further comprising means for transmitting disaster information. The delivery means includes
When it is determined by the second determination means that a disaster may occur, a communication link is established with the notification destination terminal or the disaster information collection server device via the communication network. Means for holding the link until the notification destination terminal or the disaster information collection server device is opened;
The disaster information acquisition distribution according to claim 1 or 2, further comprising means for transmitting the generated disaster information to a notification destination terminal or a disaster information collection server device via the established communication link. apparatus. The delivery means includes
Means for establishing a communication link via the communication network with the notification destination terminal or the disaster information collection server device when it is determined by the second determination means that there is a possibility of occurrence of a disaster;
Means for generating disaster information after establishing the communication link;
Means for transmitting the generated disaster information to the notification destination terminal or the disaster information collection server via the communication link;
The disaster information acquisition / delivery device according to claim 1, further comprising: a unit that opens the communication link after the transmission of the disaster information is completed.   The power supply to the distribution unit is turned on during a period from the time when the second determination unit determines that there is a possibility of a disaster to the time when the communication link is released, and is turned off during other periods. The disaster information acquisition / delivery apparatus according to claim 1, further comprising power supply control means. A program used in a disaster information acquisition / distribution device equipped with a computer connected to a plurality of sensors that are distributed in a monitored area and detect abnormal phenomena related to weather and output the detection results,
Processing to collect detection results of abnormal phenomena from the plurality of sensors;
A process for determining the presence or absence of occurrence of an abnormal phenomenon by majority processing the detection results of the abnormal phenomenon collected from the plurality of sensors;
A process of acquiring disaster bulletin information including information indicating the occurrence of abnormal phenomena related to weather, transmitted by a third-party organization,
When the disaster bulletin information is acquired, the possibility of a disaster occurrence is determined based on the information indicating the occurrence status of the abnormal phenomenon included in the disaster bulletin information and the information indicating whether or not the determined abnormal phenomenon has occurred. A process of determining,
When it is determined that there is a possibility of occurrence of a disaster, disaster information for notifying the occurrence status of the disaster is generated, and the communication network is connected to the notification destination terminal registered in advance to the generated disaster information. A program for a disaster information acquisition / distribution device that causes the computer to execute a process to be transmitted through the computer.   When it is determined that there is a possibility of occurrence of a disaster, the disaster information collection server device installed in an area other than the monitoring target area is accessed via the communication network, and the disaster information collection server apparatus is The program for a disaster information acquisition / distribution device according to claim 6, further causing the computer to execute a process of transmitting the generated disaster information. The process of transmitting the disaster information includes
When it is determined that there is a possibility of occurrence of a disaster, a communication link is established with the notification destination terminal or the disaster information collection server device via the communication network, and the communication link is connected to the notification destination terminal or Processing to hold until the disaster information collection server device is released,
8. The process for transmitting the generated disaster information to a notification destination terminal or a disaster information collection server device via the established communication link is executed by the computer. Program. The process of transmitting the disaster information includes
When it is determined that there is a possibility of occurrence of a disaster, a process of establishing a communication link via the communication network with the notification destination terminal or the disaster information collection server device;
Generating disaster information after establishing the communication link;
A process of transmitting the generated disaster information to a notification destination terminal via the communication link;
The program according to claim 6 or 7, wherein the computer is caused to execute processing for releasing the communication link after transmission of the disaster information is completed.

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