JP2009129273A - Business information management apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the load of a network and to improve accuracy of information distribution by making it possible to reduce information quantity without deteriorating the contents of information in distributing business information. <P>SOLUTION: A plurality of point information data including transmission contents concerned with disaster countermeasure business and a probability index expressing the probability of the transmission contents are stored in a database 241, a plurality of business point information data whose business classification is common out of the plurality of business point information data are correlated to each other, and business series information including information expressing the common business classification and a change degree index expressing a time series change of the transmission contents between the business point information data is stored in a database 242. In transmitting information which has been already transmitted and of which the transmission contents are changed out of the business point information data and the business series data which are respectively stored in respective databases 241, 242 to a portable terminal DS, differential data of status expressed by the combination of the probability index and the change degree index is transmitted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a business information management apparatus used in a system that collects and shares information about disasters such as disaster situations, on-site response information, disaster prevention manuals, and emergency contact networks when a disaster occurs, for example.

  For example, in the event of a disaster such as an earthquake or typhoon, disaster information such as the disaster situation is collected from the local government staff and residents in the disaster-stricken area at the Disaster Countermeasures Office, and this disaster information is collected by the government and corporate disaster prevention personnel. It is important to be able to respond quickly and accurately in the event of a disaster by distributing it and sharing it with residents.

  Therefore, various disaster information distribution systems using mobile terminals such as mobile phones and PDAs (Personal Digital Assistants) have recently been proposed. For example, disaster prevention information, crime prevention information, etc. are delivered by e-mail from a server device operated by a local government or a telecommunications carrier to a mobile phone, or a web page of a server device operated by a local government or a telecommunications carrier by a browser function provided in the mobile phone Can be browsed (see, for example, Non-Patent Document 1). With this type of system, it is possible to efficiently share disaster information by using mobile phones that have rapidly spread in recent years and using data communication such as e-mail and web browsing instead of voice communication.

“Disaster Prevention Mie”, Mie Prefecture Disaster Prevention Office, <URL: http://www.bosaimie.jp/mie/mail/pc/sample.html>

  However, even though the data communication function of the mobile terminal is used, communication traffic increases rapidly in an emergency such as a disaster. For this reason, if the amount of information of each disaster information distributed from the server device to each portable terminal is large, the transmission capacity of the communication network is exceeded, and as a result, the reliability of information distribution is reduced, which is very undesirable.

  The present invention has been made paying attention to the above circumstances, and its purpose is to reduce the amount of information without losing information content when distributing business information from an information management device to an information terminal. Accordingly, it is an object of the present invention to provide a business information management device that can reduce the burden on the network and increase the reliability of information distribution.

In order to achieve the above object, one aspect of the present invention is a business information management apparatus that transmits business information that changes in time series to an information terminal via a communication network, and is configured as follows. .
That is, the first storage that generates and stores a plurality of pieces of business point information each including information indicating the content of transmission related to the business and a probability index indicating the certainty of the content of transmission as the first form of business information Among the plurality of business point information stored in the first storage means, the plurality of business point information having relevance to each other, and the information indicating the content of the relevance and the plurality of associated A second storage unit configured to generate and store business series information including a degree of change index representing a time-series change in transmission contents between business point information as a second form of business information; And when transmitting business information to the information terminal, it is determined whether each of the business point information and business series information stored in the first and second storage means has been transmitted or not transmitted, The determined business point information or business series information is selectively read out from the first and second storage means and transmitted to the information terminal. On the other hand, for business point information or business series information determined to have been transmitted, it is determined whether the accuracy index or change index has changed since the previous transmission, and the accuracy index or change index has changed. If it is determined, information representing the accuracy index or the change index is transmitted to the information terminal.

In other words, the business information to be transmitted is represented by business point information consisting of individual transmission information and business series information in which a plurality of business point information having mutual relevance is associated, and is transmitted to the business point information. An accuracy index representing the certainty of the contents is defined, and a change degree index representing a time series change of the transmission contents is defined for the business series information. When resending the business information that has been sent to the information terminal according to the time series change of the business information, information indicating the accuracy index of the business point information or the change index of the business series information instead of the business information Is sent.
Therefore, the amount of transmission data can be greatly reduced as compared to the case where the entire business information after the change is retransmitted every time the transmission content changes. This effect is extremely important in reducing the occurrence of congestion and maintaining smooth communication, particularly when the communication traffic of the communication network increases rapidly, such as after a disaster.

The present invention is also characterized by including the following various specific configurations.
In the first configuration, information indicating “indeterminate” or “determined” is stored as a probability index included in the business point information in the first storage unit, and is included in the business series information in the second storage unit. Information indicating any of “standby”, “start”, “in progress”, and “complete” is stored as a change index.

  If comprised in this way, the change of the content of work information will be expressed concisely and accurately as six types of statuses. Therefore, even if the accuracy index or the change rate index is transmitted instead of transmitting the business information as it is, the change of the business content can be easily and reliably transmitted to the user of the information terminal. This effect is particularly effective when a disaster occurs. That is, when a disaster occurs, the information content changes faster than normal and a large amount of information is distributed. As a user, it is necessary to accurately determine the necessary information in a short time. Therefore, as described above, if an index that simply and accurately represents changes in the content of business information as six types of statuses, the user can accurately grasp the change in business content in a short time. .

  In the second configuration, when transmitting the accuracy index or the change degree index, difference data between the current accuracy index or change degree index and the previous accuracy index or change degree index is generated, and the generated difference data is It is sent to the information terminal. If comprised in this way, compared with the case where the accuracy parameter | index or change index after a change is transmitted as it is, the transmission data amount can further be reduced. The information terminal can easily reproduce the accuracy index or change index after the current change from the accuracy index or change index received last time and the current difference data.

  The third configuration receives a transmission request including the previous business information reception time for each business type from the information terminal, and determines whether or not the previous transmission information reception time is included in the received transmission request. Judge every. Based on the determination result, for a business type that does not include the previous business information reception time, it is determined that the business point information and business series information has not been transmitted, and the previous business information reception time is included. For the business type, it is determined that the business point information and business series information have been transmitted. With this configuration, simply including the previous reception time for each business type in the transmission request transmitted from the information terminal, the presence or absence of transmission of business information for each business type can be easily determined from the presence or absence of this previous reception time. It becomes possible.

  The fourth configuration includes third storage means for storing the transmission history of business information to the information terminal for each information terminal, and the transmission target is based on the transmission history stored in the third storage means. It is determined whether or not the accuracy index of business point information or the change index of business series information has changed since the previous transmission. If comprised in this way, the content of the business information transmitted to the information terminal can be autonomously managed within the business information management device without depending on the information terminal. Therefore, it is possible to determine a change in the transmitted business information without acquiring version information of the transmitted business information from the information terminal.

  In the fifth configuration, prior to the transmission process of business information, the authentication confirmation means determines whether or not the information terminal is qualified to receive business information with the information terminal of the transmission destination. It is. If comprised in this way, it will become possible to distribute business information only to the information terminal of the user who was approved beforehand.

  In short, according to the present invention, when business information is distributed from the business information management device to the information terminal, it is possible to reduce the amount of information without losing the information content, thereby reducing the burden on the network and the certainty of information distribution. It is possible to provide a business information management device that can improve the performance.

Embodiments according to the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is a schematic configuration diagram of a disaster work information sharing system according to the first embodiment of the present invention. This system enables data communication via a communication network NW, for example, between a disaster work information management apparatus MS installed in a disaster prevention center of a local government and a mobile terminal DT possessed by a user. Although only one portable terminal DS is shown in the figure for simplicity, an actual system uses a plurality of portable terminals DS possessed by different users.

  The communication network NW 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 dedicated network, a wireless local area network (LAN), a mobile phone network, and a fixed telephone network are used.

The disaster work information management apparatus MS includes a management server SV1 and a distribution server SV2, and is configured as follows. FIG. 2 is a block diagram showing the hardware and software configurations of the management server SV1 and the distribution server SV2.
That is, first, the management server SV1 includes a central control unit (CPU) 21. A program memory 23, a business point information database 241, a business series information database 242, and a status table are connected to the CPU 21 via the bus 22. 251 and the distribution history database 252 are connected to each other, and a communication interface (communication I / F) 26 and an input / output interface (input / output I / F) 27 are further connected.

  The communication I / F 26 performs data transfer with the distribution server SV2 via the signal line L under the control of the CPU 21. The input / output I / F 27 is connected to an input device 28 having a keyboard and a mouse, and a display device 29 including a liquid crystal display. The input / output I / F 27 takes in commands and data input by the administrator through the input device 28 and causes the display device 29 to display display data under the control of the CPU 21.

  The business point information database 241 stores a plurality of business point information collected from the user's mobile terminal DS. For example, as shown in P1 of FIG. 4, the business point information includes information indicating transmission contents related to the disaster countermeasure business and attribute information thereof. Information indicating the contents of communication related to disaster countermeasure work describes the contents of events to be shared, and is information on human resources and physical resources such as human resources, materials, equipment, relief supplies, etc. And the response to this situation and the content of actions.

  The attribute information includes information indicating time and position related to the information indicating the transmission content, a probability index, and business point identification information (business point ID). As the information representing the time, any one of the occurrence time of the event, the information transmission time from the information sender, the information reception time in the management server SV1, and the information recognition time (the storage time in the business point information database 241) is used. It is done. As the information representing the position, either the position where the event has occurred or the transmission position of the information is used.

  The accuracy index represents the probability of information indicating the content of transmission related to the disaster countermeasure work, and is shifted to three states of “no information”, “indeterminate”, and “determined” as time passes. The business point ID is used to uniquely identify each business point information, and includes a digit representing the business type, a digit representing a place or area, and a digit of a unique number. The accuracy index and the business point ID are arbitrarily set when the administrator of the management server SV1 inputs from the input device 28.

  The business series information database 242 stores business series information. The business series information is obtained by associating a plurality of business point information having relevance with each other, for example, as shown in S1 of FIG. This association processing is performed by the CPU 21 so that, for example, the business types of the business point ID set in each business point information are referred to, and the business types of the common business types are linked. In addition, as another example of the association processing, a common place or area may be associated with each other by referring to a digit representing the place or area of the business point ID. The business series information includes information representing the content of the relevance between a plurality of associated business point information, for example, information representing common business content or area, its title information, and attribute information.

  The attribute information includes link information for associating each business point information, time zone information, area information, and a change index. The time zone information represents a period during which the business content is managed. If the time information of the associated business point information is the occurrence time of the event, the time zone information is a period including these. The area information indicates a place where the business contents are related, and if the position information of the associated business point information is the occurrence position of the event, the area information is an area including these.

  The degree of change index represents the time series change of the business content of the business series information, that is, the time series change of the business content of the associated multiple business point information, "standby", "start", "in progress" Displaced in the order of “complete”. That is, the change index of the business series information represents the progress of the business. This change index is also arbitrarily set by the administrator of the management server SV1 inputting from the input device 28 in the same manner as the accuracy index.

  The status table 251 identifies these statuses in association with a plurality of statuses represented by combinations of the accuracy index set in the business point information and the change index set in the business series information. Status identification information is stored. The status identification information includes a status number, binary data of the status number, and difference data between the status numbers. The difference data is calculated by the calculation process of the management server SV1. FIG. 9 shows an example of the status table 251.

  In the distribution history database 252, information representing the distribution history of the business point information and the business series information is stored for each business type in association with the identification information of each mobile terminal DS that is the distribution destination. The information representing the distribution history includes a distribution time and the status of the distributed business point information and business series information.

  In the program memory 23, a business point information management control program 231, a business series information control program 232, and a business information output control program 233 are stored as application programs for realizing the functions according to the present invention.

  The business point information management control program 231 takes in information indicating the content of the disaster countermeasure business transmitted by the administrator of the monitoring server SV1 and its attribute information, and edits this information into business point information. The CPU 21 is caused to execute the processing stored in the point information database 241.

  Whenever new business point information is stored in the business point information database 241, the business series information control program 232 refers to the business point ID included in the attribute information of the business point information and newly creates business series information. Or updating the existing business series information and causing the CPU 21 to execute a process of storing the edited business series information in the business series information database 242. At this time, if the administrator inputs a change index from the input device 28 to the edited business series information, the CPU 21 is further caused to execute a process of updating the change index of the business series information.

  The business information output control program 233 causes the CPU 21 to execute the following processing. That is, when the data update information transmitted from the mobile terminal DS is transferred from the distribution server SV2, it is first determined for each business type whether or not the previous reception time is included in the update information. If the reception time is not included, the business information corresponding to the business type is determined as “unsent”, and the corresponding business point information and business series information are obtained from the business point information database 241 and the business series information database 242, respectively. The data is selectively read out and transferred from the communication I / F 26 to the distribution server SV2.

  If the previous reception time is included in the data update information, the business information corresponding to the business type is determined as “transmitted”. Then, the distribution history database 252 indicates whether or not the status represented by the combination of the accuracy index of the transmitted business point information and the change index of the business series information has changed from the status at the previous transmission. Judge based on. If the status has changed, the difference data between the status after the change and the status at the previous transmission is calculated, and the calculated difference data of the status is transferred from the communication I / F 26 to the distribution server SV2. On the other hand, if the status has not changed, the difference data is not transmitted.

  Next, the distribution server SV2 includes a central control unit (CPU) 31, and a program memory 33, an authentication management database 34, a communication interface (communication I / F) 35, and a CPU 31 are connected to the CPU 31 via a bus 32. 36 is connected.

  The communication I / F 35 performs data transfer with the management server SV1 through the signal line L under the control of the CPU 31. The communication I / F 36 performs data communication with the user terminals MS1 to MSn according to a communication protocol defined by the communication network NW under the control of the CPU 31. The authentication management database 34 stores identification information (user ID) and a password of a user or a mobile terminal registered in advance.

  The program memory 33 stores a business information distribution control program 331 as an application program for realizing the functions according to the present invention. When the disaster countermeasure business information to be distributed is sent together with the distribution request from the management server SV1 via the signal line L, the business information distribution control program 331 transmits the business information from the communication I / F 36 according to the request. The CPU 31 is caused to execute processing for transmission to the portable terminal DS.

  On the other hand, the mobile terminal DS is configured as follows. FIG. 3 is a block diagram showing the configuration. That is, the mobile terminal DS includes a control unit 10, an antenna 11, a radio unit 12, a signal processing unit 13, a speaker 14, a microphone 15, a memory interface (memory I / F) 16, and a storage unit 17. The input unit 18, the display unit 19, and a power supply unit (not shown) using a battery.

  Among these, the antenna 11, the radio unit 12, and the signal processing unit 13 are necessary for performing radio transmission / reception with the communication network NW such as frequency conversion, modulation / demodulation, and encoding / decoding processing under the control of the control unit 10. Perform the correct operation. The speaker 14 is used to generate various signal sounds such as a reception sound and a ringtone, and the microphone 15 is used to input a transmission sound.

  The storage unit 17 uses, for example, a NAND flash memory as a storage medium. The storage unit 17 stores destination information for accessing the distribution server SV2, and disaster countermeasure work information distributed from the distribution server SV2. Remembered. The memory I / F 16 writes and reads data to and from the memory card 20 under the control of the control unit 10.

  The input unit 18 includes dial keys and function keys such as a multi-function key, for inputting a communication partner's telephone number and address, inputting information for creating and sending an e-mail, and inputting a browser operation. used. The display unit 19 is composed of a liquid crystal display or an EL (Electro Luminescence) display, and displays various pictogram information indicating the operation state of the terminal, a transmission address, text data arbitrarily input by the user, and the like, distributed from the distribution server SV2. Used to display disaster response work information.

  The control unit 10 includes a microprocessor (MPU; Micro Processor Unit), a program memory, and a data memory, and includes a business information reception display control function 101 as a control function according to the present invention. The business information reception display control function 101 has a function of performing an authentication request process with the distribution server SV2 in response to a user information distribution request operation in the input unit 18, and transmits data update information to the distribution server SV2 Information, business series information and difference data are received, the received information is stored in the storage unit 17, and the business point information is stored based on the business point information and business series information stored in the storage unit 17 and the difference data. And a function of generating and displaying on the display unit 19. The business information reception display control function 101 is realized by causing the microprocessor to execute an application program.

Next, the operation of the business information management apparatus MS configured as described above will be described.
(1) Generation of disaster countermeasure work information
When a disaster occurs, the administrator inputs information indicating the transmission contents of the event related to the disaster countermeasure work from the input unit 28 in the management server SV1. For example, if you are transporting relief supplies to a shelter,
“We are preparing to transport relief supplies to A shelter.”
Enter. In addition, when the fixed phrase etc. which represent the content of transmission are previously memorize | stored in the work point information database 241, you may make it read a desired fixed sentence from this work point information database 241. FIG.

  At the same time, the administrator inputs information indicating the occurrence time and position of the event, an accuracy index, and a business point ID as attribute information of the information indicating the transmission contents. As the accuracy index, for example, if the transmission content is still “in preparation” as described above, “unconfirmed” is input. As the business point ID, “conveyance of goods” is input as the business type, and a unique number is further input. As a method for inputting business types, the CPU 21 reads a list of a plurality of assumed business types from the business point information database 241 and displays the list on the display device 29, and the administrator selects a desired list from the displayed list. It may be input by selecting a business type.

  When the transmission content and attribute information of the business are input, the CPU 21 of the management server SV1 edits the input business transmission content and attribute information to generate one business point information. The point information is stored in the business point information database 241 in the management server SV1.

Further, when the work progresses with time and the transmission contents change accordingly, the manager inputs the changed transmission contents and the attribute information each time. For example,
“We have started transporting relief supplies to A refuge.” Or
“Relief supplies are being transported to A shelter.”
Enter. In this case, “confirm” is input as the accuracy index because the transportation of the material has started. Also, when inputting the business point ID, “conveyance of material” is input as the business type as in the above case, and a unique number is also input.

  The CPU 21 of the management server SV1 edits the input business content and attribute information to generate new business point information and stores it in the business point information database 241. Thereafter, the CPU 21 generates new business point information and stores it in the business point information database 241 every time new transmission contents and attribute information are input.

  Further, each time new business point information is stored in the business point information database 241 as described above, the CPU 21 refers to the business point ID included in the attribute information of the business point information and edits the business series information. Update process is executed. For example, if the business type of the newly stored business point information is “conveyance of material” as shown above, the business point information associated with the same business type “conveyance of material” Add to series information.

  In addition, when the attribute information of the business series information changes due to the addition of the new business point information, the administrator re-enters the attribute information to update it. For example, the time zone information and the area information are input again so as to include the time and place of the newly added business point information. Note that the CPU 21 may automatically update the time zone information and the area information.

  The manager also changes the change index of the business series information. For example, in the above-described example, the transmission content changes from “Preparing” to “Transport start”, and accordingly, the accuracy index of the business point information is shifted from “Unconfirmed” to “Confirmed”. As shown in a), the change degree index is set to “start”, or as shown in FIG. 6B, the change degree index is displaced from “standby” through “start” to “in progress”.

Similarly, for example,
“Transportation of relief supplies to A shelter has been completed.”
When the business point information including the communication content is newly stored in the business point information database 241 and added to the business series information associated with the business point information related to the business type “conveyance of materials”, the administrator As shown in FIGS. 6A and 6B, the change degree index is displaced from “in progress” to “completed”.

(2) Transmission of disaster countermeasure work information
Distribution processing of disaster countermeasure business information from the business information management device MS to the mobile terminal DS is performed as follows. 7 and 8 are flowcharts showing the control procedure and control contents, and FIG. 10 is a status transition diagram of statuses used for explaining the operation.

(2-1) Authentication procedure (login)
First, as shown in FIG. 7, the distribution server SV2 transmits a service start notification message to the mobile terminal DS registered in advance through the communication network NW in step S71. This notification message includes the URL (Uniform Resource Locator) of the distribution server SV2 serving as the service site. On the other hand, when the user of the mobile terminal DS performs a call origination operation on the notified URL, the mobile terminal DS accesses the URL from the mobile terminal DS in step S73, thereby causing a step between the distribution server SV2 and the mobile terminal DS. A communication link is established as shown in S74. Note that, as in step S72, the user may access a URL that has been notified in advance by another medium such as mail.

  When the communication link is established, the distribution server SV2 transmits a request for authentication confirmation to the mobile terminal DS in step S75. On the other hand, when the user inputs login information including a user ID and a password in the portable terminal, the input login information is sent to the distribution server SV2 in step S76. Note that an individual identification number such as a telephone number or a product number of the mobile terminal may be used instead of the user ID.

  When the distribution server SV2 receives the login information in step S77, the distribution server SV2 confirms the user's validity by comparing the received login information with the login information stored in the authentication management database 34 in step S78. If the data is confirmed, a data update information transmission request is transmitted to the portable terminal DS in step S79. If the user's validity cannot be confirmed, re-input of login information is requested up to a predetermined number of times or the communication link is released.

(2-2) Transmission of Unsent Business Information When a transmission request for data update information arrives from the distribution server SV2, the user in the mobile terminal DS can view the WEB content displayed on the screen of the display unit 19 (the program on the terminal and Data). Then, the data update information is transmitted to the distribution server SV2. In this data update information, the previous information reception time is inserted for each business type. On the other hand, time information is not inserted for business types that do not have a reception history. The input data update information is transmitted to the distribution server SV2 in step S80. When the distribution server SV2 receives the data update information in step S81, the distribution server SV2 transfers the data update information to the management server SV1 via the signal line L.

  When the data update information is transferred, the management server SV1 executes transmission control of business information as follows under the control of the business information output control program 233 in step S82. That is, first, it is determined for each business type whether or not the previous reception time is included in the data update information. If the reception time is not included, it is determined that the business information corresponding to the business type is “not transmitted”, and the corresponding business point information and business series information are obtained from the business point information database 241 and the business series information database 242, respectively. The data is selectively read and transferred from the communication I / F 26 to the distribution server SV2. In step S83, the distribution server SV2 transmits the transferred business point information and business series information to the mobile terminal DS that is the data update information transmission source. The http protocol is used as the means for transmitting the business point information and business series information.

  The mobile terminal DS receives the business point information and business series information transmitted from the distribution server SV2 in step S84, and stores the received information in the storage unit 17 in step S85. After this information is stored, a data reception completion message is transmitted to the distribution server SV2 in step S86. In step S88, the portable terminal DS reads the newly stored business point information and business series information from the storage unit 17 in accordance with the display operation of the user, and displays the read information on the display unit 19.

  When the distribution server SV2 receives the data reception completion message returned from the portable terminal DS in step S87, the distribution server SV2 receives the status number corresponding to the accuracy index and the change index set in the transmitted business point information and business series information. Is read from the status table 251 for each business type, and this status number is stored in the distribution history database 252 in association with the transmission time. For example, as shown in FIG. 10, for each business type A, B, C, D, the status numbers “1”, “1”, “1”, “0” are associated with the time t1 and the distribution history database 252 Remember me.

(2-3) Transmission of difference data when business information has been transmitted It is assumed that the user inputs a request for data update information of business information that has been received in the mobile terminal DS. At this time, the previous reception time is inserted into the data update information for each business type. The portable terminal DS transmits the data update information input in step S89 to the distribution server SV2 in step S90. When the distribution server SV2 receives the data update information transmitted from the portable terminal DS in step S91, the distribution server SV2 transfers the received data update information to the management server SV1 via the signal line L.

When the data update information is transferred, the CPU 21 of the management server SV1 executes difference data generation processing as follows under the control of the business information output control program 233 in step S92.
That is, the CPU 21 first determines, for each business type, whether or not the previous reception time is included in the received data update information. If the previous reception time is included in the data update information, it is determined that the business information corresponding to the business type is “transmitted”. Next, based on the distribution history database 252, whether or not the status represented by the combination of the accuracy index of the transmitted business point information and the change index of the business series information has changed since the previous transmission. judge. If the status is changed as a result of this determination, difference data between the status after the change and the status at the previous transmission is calculated, and the calculated difference data of the status is transmitted from the communication I / F 26 to the distribution server SV2. Forward.

  For example, as shown in FIG. 10, at time t2, the transmission content of business type A changes from status “1” to “2”, the transmission content of business type C changes from status “1” to “3”, and The transmission contents of type D are displaced from status “0” to “1”, respectively, while the status of business type B is not displaced. Therefore, in this case, for the job type A, the CPU 21 calculates difference data “01” between the binary data “0010” of the status number at the current time t2 and the binary data “0001” of the status number at the previous time t1. To do. For the job type C, the difference data “10” between the binary data “0011” of the status number at the current time t2 and the binary data “0001” of the status number at the previous time t1 is calculated. Similarly, for the job type D, difference data “01” between the binary data “0001” of the status number at the current time t2 and the binary data “0000” of the status number at the previous time t1 is calculated.

  Then, the CPU 21 transfers the status difference data in the calculated business types A, C, and D to the distribution server SV2. The distribution server SV2 transmits the status difference data of the business types A, C, and D transferred from the management server SV1 to the mobile terminal DS by e-mail, for example, in step S93.

  The portable terminal DS receives the status difference data transmitted from the distribution server SV2 in step S94. Then, in step S95, the received difference data is stored in the storage unit 17 in association with the reception time t2, as shown in FIG. After the difference data is stored, a data reception completion message is transmitted to the distribution server SV2 in step S96. When the distribution server SV2 receives the data reception completion message returned from the portable terminal DS in step S97, the distribution server SV2 associates the status number of each business type at the current transmission time t2 with the transmission time t2 as shown in FIG. Store in the distribution history database 252.

  Further, when a display operation is performed by the user, the portable terminal DS reads the newly stored status difference data from the storage unit 17 in step S98, and this status difference data and the previously received status are used for the current status. Reconfigure. Then, the reconfigured status is reflected on the information indicating the transmission contents received as the business point information and business series information at the time of the previous reception, and displayed on the display unit 19.

(2-4) Authentication procedure (logout)
When the user performs a logout operation on the mobile terminal DS, the mobile terminal DS transmits logout information to the distribution server SV2 in step S99. On the other hand, when the distribution server SV2 receives the logout information transmitted from the portable terminal DS in step S100, the distribution server SV2 opens the communication link between the distribution server SV2 and the portable terminal DS in step S101.

  As described above, in the disaster work information management apparatus MS according to this embodiment, the management server SV1 has a plurality of work points including information indicating the contents of transmission related to the disaster countermeasure work and the accuracy index indicating the probability of the contents of the transmission. Information is stored in the business point information database 241, and a plurality of business point information having a common business type is associated among the plurality of business point information, and the communication contents between the information representing the common business type and the business point information Business series information including a change index indicating a time series change is stored in the business series information database 242. Then, when business information is transmitted to the mobile terminal DS, it is determined whether the business point information and business series information stored in the databases 241 and 242 have been transmitted or not transmitted. Point information or business series information is selectively read from the databases 241 and 242 and transmitted from the distribution server SV2 to the portable terminal DS. On the other hand, for business point information or business series information determined to have been transmitted, it is determined whether or not the status represented by the combination of the accuracy index and the degree of change index has changed since the previous transmission. When it is determined that has changed, the difference data of the status is transmitted from the distribution server SV2 to the mobile terminal DS.

  Therefore, when retransmitting the transmitted business information to the mobile terminal DS according to the time series change of the business information transmission content, instead of transmitting the business information, the accuracy index of the business point information and the business Status difference data represented by a combination with the change index of the series information is transmitted. For this reason, the amount of transmission data of business information can be greatly reduced as compared with the case where the business information after the change is retransmitted every time the transmission content changes. This effect is extremely important in reducing the occurrence of congestion and maintaining smooth communication, particularly when the communication traffic of the communication network NW increases rapidly, such as after a disaster.

  Further, as shown in FIG. 9, the accuracy index defined for the business point information is either “indeterminate” or “firm”, and the change rate index defined for the business series information is “standby”, By selecting one of “start”, “in progress”, and “complete”, the status that is a combination of these indicators can be represented by a small number of bits (3 bits), and the transmission information can be expressed as difference data of the above status. By doing so, the amount of transmission data can be further reduced to a small number of bits (only 2 bits). In addition, the portable terminal DS can easily reproduce and display the status from the received status difference data, and as a result, the user can receive a lot of business information as after the disaster occurred. Even in this case, it is possible to recognize at a glance a change in the content of business information transmission based on the displayed status.

  Furthermore, it is determined for each business type whether or not the data update information sent from the mobile terminal DS includes the previous business information reception time, and whether the business information is “sent” based on the determination result. It is determined whether it is “unsent”. Therefore, the management server SV1 can easily determine the presence / absence of transmission of business information for each business type from the presence / absence of the previous reception time.

Further, the status for each business type transmitted to the portable terminal DS is stored in the distribution history database 252 as the business information transmission history, and the status of the business type to be transmitted is based on the status for each stored business type. Determines whether or not has changed since the previous transmission. If comprised in this way, the content of the work information transmitted to the portable terminal DS can be managed autonomously in the disaster work information management apparatus MS without depending on the portable terminal DS. Therefore, it is possible to determine a change in the status of the transmitted business information without obtaining version information of the transmitted business information from the mobile terminal DS each time using the data update information.
Further, since the mobile terminal DS is authenticated with the transmission destination mobile terminal DS whether or not the mobile terminal DS has the qualification for receiving business information, Only business information can be distributed.

(Second Embodiment)
The disaster information management apparatus according to the present invention distributes business information by performing asynchronous communication using the XMLHttpRequest object between the distribution server SV2 and the portable terminal DS. FIG. 11 is a flowchart showing the processing procedure and processing contents in the management server SV1, the distribution server SV2, and the portable terminal DS.

  It is assumed that the user inputs a data update request for received business information in the mobile terminal DS. When the portable terminal DS detects the input of the update request in step S111, the portable terminal DS calls the data acquisition request program in step S112. Then, an XMLHttpRequest object is generated and asynchronous communication by the Web browser is started. In this state, the mobile terminal DS transmits data update information to the distribution server SV2. At this time, the previous reception time for each business type is inserted into the data update information. When the distribution server SV2 receives the data update information transmitted from the portable terminal DS in step S113, the distribution server SV2 transfers the received data update information to the management server SV1 via the signal line L.

When the data update information is transferred, the CPU 21 of the management server SV1 executes difference data generation processing as follows under the control of the business information output control program 233 in step S114.
That is, the CPU 21 first determines, for each business type, whether or not the previous reception time is included in the received data update information. If the previous reception time is included in the data update information, it is determined that the business information corresponding to the business type is “transmitted”. Next, the CPU 21 stores in the distribution history database 252 whether or not the status represented by the combination of the accuracy index of the transmitted business point information and the change index of the business series information has changed since the previous transmission. Judgment. If the status is changed as a result of this determination, difference data between the status after the change and the status at the previous transmission is calculated, and the calculated difference data of the status is transmitted from the communication I / F 26 to the distribution server SV2. Forward. The distribution server SV2 transmits the status difference data of the business type transferred from the management server SV1 from the communication I / F 36 to the portable terminal DS in step S115.

  The portable terminal DS receives the status difference data transmitted from the distribution server SV2 in step S116. Then, in step S117, the received difference data is stored in the storage unit 17 in association with the reception time at this time. After the difference data is stored, a data reception completion message is transmitted to the distribution server SV2 in step S118. When the distribution server SV2 receives the data reception completion message returned from the portable terminal DS in step S121, the distribution server SV2 stores the status number of each business type at the current transmission time in the distribution history database 252 in association with the transmission time. .

  In addition, when a display operation is performed by the user, the portable terminal DS reads the newly stored status difference data from the storage unit 17 in step S119, and the current status is determined from the status difference data and the previously received status. Reconfigure. Then, the reconfigured status is reflected in the information indicating the transmission content received as the business point information and the business series information at the time of the previous reception, and the information indicating the transmission content in which the reconfigured status is reflected, A part of the Web page is rewritten and displayed on the display unit 19.

  When the user performs a logout operation at the mobile terminal DS, the mobile terminal DS transmits logout information to the distribution server SV2 at step S120. On the other hand, when the distribution server SV2 receives the logout information transmitted from the portable terminal DS in step S122, the distribution server SV2 opens the communication link between the distribution server SV2 and the portable terminal DS in step S123.

  As described above, by performing asynchronous communication using the XMLHttpRequest object as a business information distribution means between the distribution server SV2 and the mobile terminal DS, the screen display time on the mobile terminal DS is also suppressed while suppressing the amount of communication data. be able to. This effect is particularly effective at the time of communication congestion or confusion when a disaster occurs where communication tends to be interrupted. As a result, it is possible to share the latest business information between each site such as evacuation facilities and disaster occurrence sites, and between these sites and the disaster response headquarters. Response actions can be encouraged.

(Other embodiments)
The present invention is not limited to the above embodiment. For example, in the first embodiment, the administrator of the disaster work information management apparatus MS inputs the index value from the input device 28 for setting the accuracy index for the work point information and setting the change degree index for the work series information. It went by. However, the present invention is not limited to this, and the CPU 21 may perform syntax analysis processing and keyword search processing on the business point information and the business series information, and the accuracy information and the degree of change information may be automatically set based on the results.

  Further, in the first embodiment, the status difference data is calculated by the CPU 21 each time, but the status data is stored in advance in the status table 251 in association with the status displacement pattern, and the status data The corresponding difference data may be read from the status table in accordance with the displacement pattern.

  Furthermore, in the first embodiment, as illustrated in FIG. 4, the case where a plurality of business point information P1 to Pn is associated with the business series information S1 to Sm according to the business type has been described as an example. However, not limited thereto, for example, as shown in FIG. 5, the business series information S1 to Sm may be associated with higher-level business series information SS1 to SSk according to, for example, a region or a time zone. Also in this case, a change degree index indicating a time series change of the transmission information group is set for each of the higher-level business series information SS1 to SSk. In this way, it is possible to simply and clearly present to the user the time series change of the transmission content group of the business series information S1 to Sm associated therewith as the degree of change index by the upper business series information SS1 to SSk. It becomes possible. If necessary, the higher-level business series information SS1 to SSk may be associated with higher-level business series information.

  Furthermore, in the first and second embodiments, the case where a mobile terminal such as a mobile phone or a PDA is used as an information terminal has been described as an example. However, fixed information such as a stationary personal computer connected to a wired communication network is used. A terminal may be used. Moreover, although the case where disaster work information management apparatus MS was comprised by management server SV1 and distribution server SV2 was illustrated, you may make it use the server which united the function of both server SV1, SV2. Furthermore, the business information is not limited to information related to disasters, but may be business information in normal times, inventory management information, or the like. In addition, the configuration of the business information management apparatus, the processing procedure and processing contents, the transmission format of business information, the type of communication network and its protocol, and the like 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 the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

1 is a schematic configuration diagram of a disaster work information sharing system according to a first embodiment of the present invention. It is a block diagram which shows the structure of the management server and distribution server of the disaster business information sharing system shown in FIG. It is a block diagram which shows the structure of the portable terminal of the disaster work information sharing system shown in FIG. FIG. 3 is a diagram illustrating a configuration of business point information and business series information managed by the management server illustrated in FIG. 2 and a relationship between the two. It is a figure which shows the other example of the relationship between business point information and business series information. It is a figure which shows the relationship between the accuracy parameter | index provided to business point information, and the change index provided to business series information. It is a flowchart which shows the first half part of the process sequence and the process content in the management server, delivery server, and portable terminal which were shown in FIG.2 and FIG.3. It is a flowchart which shows the latter half part of the process sequence and process content in the management server, delivery server, and portable terminal which were shown in FIG.2 and FIG.3. It is a figure which shows the structure of the status table used with the management server shown in FIG. It is a state transition diagram used for operation | movement description of the management server shown in FIG. 2, and the portable terminal shown in FIG. It is a flowchart which shows the latter half part of the process sequence and process content in the management server, delivery server, and portable terminal concerning 2nd Embodiment of this invention.

Explanation of symbols

  SV1 ... management server, SV2 ... distribution server, DS ... mobile terminal, NW ... communication network, 10 ... control unit, 11 ... antenna, 12 ... radio unit, 13 ... signal processing unit, 14 ... speaker, 15 ... microphone, 16 ... Memory I / F, 17 ... Storage unit, 18 ... Input unit, 19 ... Display unit, 20 ... Memory card, 21,31 ... CPU, 22,32 ... Bus, 23,33 ... Program memory, 26,35,36 ... Communication I / F, 27 ... Input / output I / F, 28 ... Input device, 29 ... Display device, 101 ... Disaster job information reception display control program, 231 ... Business point information management control program, 232 ... Business series information management control program 233 ... Differential data generation output program, 241 ... Business point information database, 242 ... Business series information database, 251 ... Stator stable, 252 ... distribution history database, 331 ... business information distribution control program, P1~Pn ... business point information, S1~Sm ... business series information, SS1~SSk ... integrated business series information.

Claims (6)

In the business information management device that transmits the business information that changes in time series to the information terminal via the communication network,
A first storage for generating and storing a plurality of pieces of work point information each including information indicating the content of transmission related to the business and a probability index indicating the certainty of the content of transmission as the first form of the business information Means,
Among a plurality of business point information stored in the first storage means, a plurality of business point information having relevance is associated with each other, information indicating the content of the relevance, and the plurality of business points associated with each other A second storage means for generating and storing business series information including a change degree index representing a time-series change of transmission contents between information as a second form of the business information;
First determination means for determining whether each of the business point information and the business series information stored in the first and second storage means is transmitted or not transmitted when transmitting the business information to the information terminal; ,
The business point information or business series information determined as untransmitted by the first determination means is selectively read from the first and second storage means, and the read information is transmitted to the information terminal. Means for sending
Second determination means for determining whether or not the accuracy index or change index of the business point information or business series information determined to have been transmitted by the first determination means has changed since the previous transmission; ,
A second transmission unit configured to transmit information representing the accuracy index or the degree of change index to the information terminal when the second determination unit determines that the accuracy index or the degree of change index has changed; Business information management device characterized by The first storage means stores information indicating “indeterminate” or “determined” as a probability index included in the business point information,
The second storage means stores information indicating any one of “standby”, “start”, “in progress”, and “complete” as a change degree index included in the business series information. Item 1. The business information management device according to item 1.   The second transmission means generates difference data between the accuracy index or change index after the change and the accuracy index or change index at the time of the previous transmission, and transmits the generated difference data to the information terminal. The business information management device according to claim 1 or 2, wherein The first determination means includes
Means for receiving a transmission request including a previous business information reception time for each business type transmitted from the information terminal;
Means for determining for each business type whether or not the previous transmission information reception time is included in the received transmission request;
Based on the determination result, for business types that do not include the previous business information reception time, it is determined that the business point information or business series information has not been transmitted, and the business type that includes the previous business information reception time 4. The business information management apparatus according to claim 1, wherein the business point information or business series information is determined to have been transmitted. The second determination means includes
Third storage means for storing a transmission history of business information to the information terminal for each information terminal;
Based on the transmission history stored in the third storage means, it is determined whether or not the accuracy index of business point information to be transmitted or the change index of business series information has changed since the previous transmission. The business information management device according to any one of claims 1 to 4.   Prior to the information transmission processing by the first or second transmission means, an authentication confirmation means for determining whether or not the information terminal has a qualification for receiving business information with the information terminal of the transmission destination, The business information management apparatus according to claim 1, further comprising:

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