JP2010086133A - Disaster information collection system using mobile terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To collect disaster information comprehensively over a wide area. <P>SOLUTION: A disaster information collection system includes a mobile terminal having a position detection means for acquiring a present position by receiving a radio wave from a GPS satellite, and a vibration detection means for detecting the vibration of the mobile terminal body. The disaster information collection means also includes a disaster information collection device for receiving both the vibration information, detected by the vibration detection means, and the position detection information, detected by the position detection means, provided on a plurality of mobile terminals, and for collecting the vibration information received on the basis of each region preset on the map, and for converting and outputting the above information into seismic intensity information on the basis of each region. Further, each mobile terminal includes a means for automatically originating the transmission of the vibration information, detected by the vibration detection means, and the position detection information, detected by the position detection means. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a disaster information collection system that acquires and aggregates locally different disaster information over a wide range using a mobile terminal.

With the widespread use of mobile phones, emergency calls from mobile phones are increasing. For this reason, it took time to grasp the location of the reporter, and it took a long time for the patrol car to arrive after the report.
In order to solve such a recent situation, the mobile phone is required to be equipped with GPS. When an emergency call is made, automatic positioning is performed by GPS, and the response time can be shortened by notifying the police and the fire department of location information.

FIG. 10 is a configuration diagram showing an outline of automatic transmission of position information using this mobile phone with GPS function (hereinafter, mobile terminal).
When reporting from a mobile terminal to a police station or a fire station (step 1001), the base station, a communication carrier, and a telephone line are connected to the police and the fire department via a radio line (step 1002). At the same time, the mobile terminal measures the current position from the GPS satellite (step 1003), and transmits information on the current position to the communication office (step 1004). This information on the current position is encrypted at the communication office and transmitted as an answer to the current position of the report to the police and the fire department via the IP network (step 1005).

Note that location information is not automatically transmitted when the whistleblower gives a non-notified special number. At this time, the position information can be compulsorily acquired by the judgment of the police or the fire department by taking the next step.
When the reporter's mobile terminal is connected to the police or fire department in step 1002 and the “location information acquisition” button is pressed on the receiving side of the police or fire department (step 1011), the police or fire department or the like The institution system transmits an inquiry message of the current location of the reporter to the telecommunication office system (step 1012).
The communication office system encrypts the inquiry message of the current location of the reporter and transmits it to the reporter's mobile terminal. On the other hand, the mobile terminal measures the current position from the GPS satellite, and returns information on the current position to the inquiring police or fire department through the communication office. As described above, even when the reporter makes a report with a non-notification special number, the location information of the reporter is transmitted to an organization such as the police or the fire department.
In addition, as a known technical document related to the present invention, there is a “disaster precursor information processing system” disclosed in Patent Document 1 below.
JP 2002-165034 A

  By the way, when a large-scale disaster occurs, conventionally, since disaster information is collected by a fixed-point observation device (for example, a seismometer), only seismic intensity information in the vicinity of the observation point is reported, and there is local damage. Even if there is a huge area, disaster information will not be reported unless observation equipment is installed there. Therefore, there is a problem that detailed disaster information that covers a wide range of disaster information (for example, seismic intensity information) other than a fixed point observation point cannot be collected.

  An object of the present invention is to provide a disaster information collection system capable of collecting and analyzing disaster information comprehensively over a wide range.

In order to achieve the above object, a disaster information collecting system of the present invention includes a position detection means for receiving radio waves from a GPS satellite to acquire a current position, and a vibration detection means for detecting vibration of a terminal body. And receiving the vibration information detected by the vibration detection means of the plurality of mobile terminals and the position detection information detected by the position detection means, totaling the vibration information received in units of preset regions on the map, It consists of a disaster information collection device that converts and outputs regional seismic intensity information.
Each portable terminal is provided with means for automatically transmitting vibration information detected by the vibration detection means and position detection information detected by the position detection means.
In addition, the vibration detecting means is constituted by an acceleration sensor, and the fall distance of the portable end is estimated based on the acceleration detected by the acceleration sensor in the portable terminal, and the possibility of the collapse of the building is determined based on the calculation result. It is characterized by providing means for performing the above.

The disaster information collection system of the present invention has the following effects.
(1) By using a portable terminal with a high penetration rate, it is possible to collect disaster information that is locally different due to the influence of an active fault or the like over a wide range.
(2) By automatically transmitting disaster information from the mobile terminal, detailed disaster information at more points than the fixed point observation point can be collected comprehensively.
(3) The possibility of the collapse of the building can be determined by measuring the fall distance using the output of the vibration detection means (for example, acceleration sensor) of the portable terminal.
(4) From disaster information collected over a wide area, it is possible to easily grasp areas where disaster damage other than fixed-point observation points is significant.

Hereinafter, an embodiment of a disaster information collection system to which the present invention is applied will be described.
FIG. 1 is a system configuration diagram showing an example of an embodiment of the present invention.
The disaster information collection system of this embodiment includes a host system (disaster information collection device) 2 having a disaster information database 1 and a plurality of portable terminals 3a, 3b, 3n that transmit disaster information for each region to the host system 2. It consists of and.
The portable terminals 3a, 3b, and 3n are connected to the base station 4 through a wireless line. The base station 4 is connected to a network 5 using a wired public line network, and the host system 2 is connected to the network 5.
Therefore, the cellular phones 3a, 3b, 3n and the host system 2 are connected to the host system 2 through the wireless line reaching the base station 4 and the network 5.
In addition to the disaster information database 1, the host system 2 has a map database 6 in which map data indicating buildings and road maps of the whole country are registered, and address / road / building names corresponding to the position information of latitude / longitude. Is stored in the position information database 7.

In the disaster information database 1 of the host system 2, disaster information data sent from the mobile terminals 3a, 3b, 3n are registered.
The host system 2 includes a transmission / reception unit 8 that performs transmission / reception with the mobile terminals 3a, 3b, and 3n, a database update unit 9 that performs registration processing in the disaster information database 1, a disaster information database 1, a map database 6, and a location information database. 7 is included, and a data processing unit 10 that performs disaster information inquiry processing is provided.

As shown in FIG. 2, the disaster information stored in the disaster information database 1 includes a caller ID 21, a date 22, a registration time 23, a latitude / longitude 24, a prefecture 25, a place name 26, a vibration 27, and a fall distance 28. It consists of each data. Of these, the prefecture 25 and the place name 26 are specified by searching the location information database 7 from the latitude / longitude 24 received from the mobile terminals 3a, 3b, 3n.
Here, for example, when disaster information is newly registered, as shown in FIG. 2, “mobile ID” as the caller ID 21, “April 2, 2012” as the date 22, and “12:00 as the registration time 23” 36 minutes ", latitude and longitude 24 as" N 35 ° 37 ', E 139 ° 45'", prefecture 25 as" Tokyo ", place name 26 as" Shinagawa-ku Higashishinagawa 5 ", vibration 27 as" 40cm / "1 m / sec" is registered as the "second" and the fall distance 28.
Even when disaster data related to the same caller ID is transmitted a plurality of times in a short time, it is registered by registration time. This is for registering disaster information that changes over time as needed.

FIG. 3 is a diagram illustrating the configuration of the mobile terminals 3a, 3b, and 3n.
The mobile terminals 3a, 3b, and 3n receive the radio waves from the GPS satellites and detect the current position of the own device, the acceleration sensor unit 32 that measures the moving direction and moving distance of the mobile terminal, and the base station 4. A transmission / reception unit 33 that performs transmission / reception with the host system 2, a display unit 34 that displays a map that visualizes disaster information and map data, an input unit 35 that processes input information, and a data processing unit 36 that performs data processing. Yes.
Here, the data processing unit 36 performs a vibration / drop measurement processing unit 361 that determines whether the detected vibration and fall distance values exceed the disaster determination threshold, and a frame configuration process that transmits disaster information to the host system 2. The transmission information processing unit 362 includes a display processing unit 363 that displays data when a disaster information inquiry is performed.

FIG. 4 is a frame configuration diagram of disaster information data transmitted from the mobile terminals 3a, 3b, and 3n to the host system 2.
When transmitting disaster information data stored in the disaster information database 1, as shown in FIG. 4, a frame comprising a caller ID (mobile ID) 41, time 42, latitude, longitude 43, vibration 44, and fall distance 45. Create and send.
Here, the mobile terminals 3a, 3b, and 3n do not determine the prefecture 25 and the place name 26 in FIG. 2, but transmit the latitude / longitude 43 detected by the radio wave transmitted from the GPS satellite. Based on the transmitted latitude / longitude 43, the host system 2 specifies the prefecture 25 and the place name 26 using the position DB 7 and the map DB 6.

Hereinafter, the operation of the disaster information collection system configured as described above will be described.
FIG. 5 is a flowchart showing an outline of data distribution processing of the host system 2.
The host system 2 first determines whether the information received from the mobile terminals 3a, 3b, 3n is disaster information data (step 501). If it is not disaster information data, it is determined whether the request is a distribution request (step 502).
When the disaster information data is received, the location information database 7 is searched from the latitude / longitude 43 in the disaster information data shown in FIG. 4, and the prefecture 25 and the place name 26 are acquired (step 504).
Then, the acquired prefecture 25 and place name 26 are assigned to the received disaster information data (step 505).
When the distribution request request is received, the requested area is acquired from the received data (step 506).
Next, the disaster information database 1 is searched from the requested area, and the disaster information is totaled (step 507). Then, the map database 6 is searched from the aggregated disaster information and the requested area, and the average of the seismic intensity in the area unit of a preset size is calculated from the acquired map data and the disaster information aggregated in Step 507 and combined with the value. (Step 508). Then, the acquired map data and disaster information are transmitted to the requesting mobile terminals 3a, 3b, 3n (step 509).

FIG. 6 is a flowchart showing an outline of processing in the portable terminal 3 (3a, 3b, 3n).
The data processing unit 36 of the portable terminal 3 confirms whether the disaster information notification setting is ON (step 601). If it is set, the acceleration sensor unit 32 detects vibration information. At this time, it is determined whether or not the vibration is greater than or equal to the threshold for disaster determination (for example, greater than or equal to 10 cm per second) (step 602).
When a vibration (vibration) equal to or greater than the threshold for disaster determination is detected, the value is acquired and input to the vibration 44 of the data frame in FIG. 4 (step 603). Further, it is determined whether or not the mobile terminal body has detected a fall of a distance (for example, 3 m) greater than or equal to the disaster determination threshold (step 604).
When a fall exceeding a distance equal to or greater than the disaster determination threshold is detected, the value is acquired and input to the fall distance 45 of the data frame in FIG. 4 (step 608).
Next, the caller ID is acquired from the portable terminal and the current time is acquired from the clock inside the portable terminal, and is input to the caller ID 41 and the time 42 in the data frame of FIG. 4 (step 605).
Next, the current position detected by the GPS unit 31 is acquired and input to the latitude / longitude 43 of the data frame of FIG. 4 (step 606). Finally, the above disaster situation is transmitted to the base station 4 (step 607).
At this time, even when the latitude / longitude cannot be acquired from the GPS unit 31, the disaster situation is transmitted. In this case, the host system 2 supplements the latitude / longitude with the latitude / longitude information of the corresponding base station.

FIG. 7 shows an example of a search screen when querying disaster information on the mobile terminal 3.
Here, the surrounding information of FIG. 8 can be obtained by inputting the surrounding place name or the building name to be referred to in the input space 71 and further pressing the search button 72.
Further, from the link 73, the current position of the own device can be detected by using the GPS function of the mobile terminal, and nearby disaster information can be quickly searched.

FIG. 8 is a wide area map obtained as a result of the search of FIG. 7, and a star mark 81 is a search point.
Further, the pin mark 82 displays the seismic intensity at the location as a numerical value. In the example of the figure, “seismic intensity 6” and “seismic intensity 7” are shown. Note that the result can be seen on a detailed map by changing the display area of the scale 83.

  FIG. 9 is a detailed map obtained as a result of the search of FIG. 7, and a star mark 91 is a search point. An explosion mark 92 indicates a point where the building is likely to collapse.

As described above, the disaster information collection system of this embodiment has the following effects.
(1) By using a portable terminal with a high penetration rate, it is possible to collect disaster information that is locally different due to the influence of an active fault or the like over a wide range.
(2) By automatically transmitting disaster information equal to or greater than the threshold for disaster determination from a mobile terminal, a mobile user does not need to perform an active operation, and more disaster information can be collected.
(3) When the fall distance is measured by using the acceleration sensor of the portable terminal and a sudden fall distance is detected, it can be determined that there is a possibility that the building has collapsed.
(4) From the disaster information collected over a wide range, it is possible to infer a predicted area where the disaster damage is statistically significant. This provides reference information for selecting areas where rescue activities should be prioritized.

Although the acceleration sensor is used in the above embodiment, vibration detecting means having an equivalent function can be used.
As a method for estimating and calculating the seismic intensity from the acceleration detected by the acceleration sensor, the method disclosed in the following website of the Japan Meteorological Agency of Non-Patent Document 1 can be used.
Of the terms disclosed on the following website of the Japan Meteorological Agency, “horizontal motion 2 component” corresponds to “vibration” used in this specification, and “vertical motion 1 component” is “fall distance”. It corresponds to.

http://www.seisvol.kishou.go.jp/eq/kyoshin/kaisetsu/calc_sindo.htm

1 is a system configuration diagram showing an embodiment of the present invention. It is a block diagram of the data stored in the disaster information database. It is an internal block diagram of a portable terminal. It is a block diagram of the disaster information frame transmitted from a portable terminal to a host system. It is a flowchart which shows the outline | summary of the data processing of a host system. It is a flowchart which shows the process of a portable terminal. It is explanatory drawing of a disaster information inquiry screen on the screen of a portable terminal. It is explanatory drawing of the specific example in which the extensive disaster information on the screen of a portable terminal is displayed. It is explanatory drawing of the specific example by which detailed damage information on the screen of a portable terminal is displayed. It is a schematic diagram of the automatic transmission system of the positional information using the conventional GPS carrying.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Disaster information database, 2 ... Host system, 3a, 3b, 3n ... Portable terminal, 4 ... Base station, 5 ... Network, 6 ... Map database, 7 ... Location database, 8 ... Transmission / reception part, 9 ... DB update part, DESCRIPTION OF SYMBOLS 10 ... Data processing part, 21 ... Caller ID, 22 ... Date, 22 ... Registration time, 24 ... Latitude / longitude, 25 ... Prefecture, 26 ... Place name, 27 ... Vibration, 27 ... Fall distance, 31 ... GPS 32: Acceleration sensor unit, 33 ... Transmission / reception unit, 34 ... Display unit, 35 ... Input unit, 36 ... Data processing unit, 361 ... Vibration / drop measurement processing unit, 362 ... Transmission information processing unit, 363 ... Display processing unit 37 ... Data storage unit, 41 ... Sender ID, 42 ... Time,
43 ... Latitude / longitude, 44 ... Vibration, 45 ... Fall distance.

Claims (3)

  A portable terminal having position detecting means for receiving a radio wave from a GPS satellite and acquiring a current position and a vibration detecting means for detecting vibration of the terminal body, and vibration information detected by the vibration detecting means of a plurality of portable terminals And a disaster information collecting device that receives the position detection information detected by the position detection means, totals the vibration information received in a predetermined region unit on the map, converts the information into seismic intensity information of each region unit, and outputs it Disaster information collection system characterized by comprising.   The disaster information collection system according to claim 1, further comprising means for automatically transmitting vibration information detected by the vibration detection means and position detection information detected by the position detection means to each of the mobile terminals.   The vibration detection means is constituted by an acceleration sensor, and a drop distance of the mobile end is estimated and calculated based on the acceleration detected by the acceleration sensor in the mobile terminal, and the possibility of the collapse of the building is determined based on the calculation result The disaster information collection system according to claim 1 or 2, further comprising:

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