JP2009245299A - Supervisory system, supervisory method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To group persons to be observed, thereby quickly detecting the occurrence of any abnormal state, and immediately dealing with an abnormal state. <P>SOLUTION: A mobile terminal that each of the persons to be observed carries reads tag information from a wireless tag, makes ad hoc network communications, and collects information about adjacent mobile terminals and tag information, and only one of the mobile terminals that the plurality of persons to be observed carry transmits the collected information about adjacent mobile terminals and tag information to a data server. Based on the tag information received, the data server expands the collected information about the mobile terminals into a previously stored map, creates position information, and transmits the position information created to a terminal that an observer carries. The terminal that the observer carries receives the position information and displays the position information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention mainly provides a watching system and a watching method for detecting an occurrence of an abnormal situation as soon as possible while watching a child at the time of going to and from a younger child such as an elementary school lower grade and giving the child a peace of mind. And program.

In recent years, violent crimes targeting children who become alone when going to and from school have frequently occurred and efforts are being made to prevent this. As part of these efforts, teachers, parents, local volunteers, guards, etc. are watching over children and educating their children when going to and from school. There are many problems such as securing time for volunteers, securing expenses for security agents, etc., and it is often difficult to make permanent efforts. IT (Information)
Watching by a watching system using Technology) has been attracting attention, and a plurality of companies have announced watching systems, and demonstration experiments are being conducted in various places.

The monitoring system as described above includes a monitoring sensor (installed in school gates, school roads, and towns), a mail server (sending mail to users), a WEB server (viewing passage history and children's images), and management A system that consists of a database server for each child, and in conjunction with an electronic tag worn by a child, each watch sensor keeps track of going to and from school and allows parents to check the child's passage history and images through WEB and email (non-patented) Use location search services such as GPS (Global Positioning System), GPS, etc., and obtain and record location information at regular intervals at designated time intervals for each user. By subscribing to the route and comparing it with a pre-set area range for each user, System (see Patent Document 1.) Which emits ku recognize warning are known.
http: // panasonic. co. jp / crop / news / official. data / data. dir / jn060601-2 / jn060601-2. html JP 2006-164207 A

  However, in the technology described in Non-Patent Document 1, since it is necessary to construct a network on the monitoring sensor side, the system becomes large-scale, and an electronic tag worn by a child sends information to the monitoring sensor. Since it is a mechanism to provide, there is a security problem when the contents of the electronic tag are falsified.

  In addition, since the technique described in Patent Document 1 uses GPS, it does not function unless it is a place where communication with a satellite is possible. There is also a problem that even if the position of a specific person can be confirmed, it is not possible to know who is around. Further, since communication is performed one-on-one with the satellite, there is a problem that the load on the network is large.

  Therefore, the present invention has been made in view of the above circumstances, and by monitoring the occurrence of an abnormal state quickly by grouping the person to be observed, a monitoring system and a monitoring method that can immediately respond to the abnormal state And to provide a program.

  The present invention proposes the following items in order to solve the above-described problems.

  (1) The present invention is a monitoring system comprising a plurality of wireless tags arranged at predetermined positions, a portable terminal possessed by a plurality of persons to be observed, a terminal possessed by the observer, and a data server. Each mobile terminal possessed by the person to be observed performs ad hoc network communication with tag information reading means that reads tag information from the wireless tag, forms a group, and information on adjacent mobile terminals and the adjacent A collecting unit that collects tag information read by the mobile terminal; and a transmitting unit that transmits the collected information and tag information of the adjacent mobile terminal to the data server, wherein the data server stores map information. Based on the received tag information, storage means, location information generating means for developing the collected mobile terminal information on a map to generate location information, and A position information transmitting means for transmitting position information to a terminal possessed by the observer, wherein the terminal possessed by the observer receives the position information and displays the position information. A system is proposed.

  According to the present invention, the tag information reading means of each portable terminal possessed by the person to be observed reads the tag information from the wireless tag, the collecting means performs ad hoc network communication, forms a group, The terminal information and the tag information read by the adjacent mobile terminal are collected, and the transmission unit transmits the collected information and tag information of the adjacent mobile terminal to the data server. Based on the received tag information, the location information generation means of the data server expands the collected mobile terminal information on the stored map to generate location information, and the location information transmission means observes the generated location information. Sent to the terminal owned by the person. Then, the terminal possessed by the observer receives the position information and displays the position information. Therefore, the tag information is read from the wireless tag, ad-hoc network communication is performed, a group is formed, and information on adjacent mobile terminals is collected. It can be obtained. In addition, each portable terminal possessed by the person to be observed can read only the tag information from the wireless tag and does not provide information, thereby ensuring security. Note that the collected mobile terminal information is not limited to map information stored in advance, but may be expanded to map information acquired from the outside by accessing the network.

  (2) The present invention relates to the monitoring system of (1), in which only the transmitting means of one mobile terminal among the mobile terminals possessed by the plurality of observers reads the read tag from the data server. A monitoring system is proposed that transmits information and information on the collected adjacent mobile terminals.

  According to this invention, among the mobile terminals possessed by a plurality of persons to be observed, only the transmitting means of one mobile terminal reads the tag information read from the data server and the information of the collected adjacent mobile terminals. Therefore, useless communication from other portable terminals can be eliminated and the load on the network can be reduced.

  (3) According to the present invention, in the monitoring system of (1), tag information reading means of each portable terminal possessed by the person to be read reads tag information from the wireless tag by short-range wireless communication. Proposes a monitoring system.

  According to the present invention, the tag information reading means of each portable terminal possessed by the person to be observed reads the tag information from the wireless tag by short-range wireless communication, so that the area can be specified within a certain range. .

  (4) In the monitoring system according to (1), the data server includes storage means for storing the received tag information and the collected mobile terminal information in time series, and the position information generating means Has proposed a monitoring system characterized in that, based on the received tag information, the collected mobile terminal information is developed on a map in time series.

  According to the present invention, since the position information generating means develops the collected mobile terminal information on a map based on the received tag information in time series, the gait of a specific observer is accurately traced. be able to.

  (5) The present invention relates to a plurality of wireless tags arranged at predetermined positions, a portable terminal possessed by a plurality of observers, a portable terminal possessed by a plurality of watchers, and a terminal possessed by the observer. A monitoring system comprising a data server, wherein a portable terminal possessed by the watcher and a portable terminal possessed by a plurality of observers read tag information from the wireless tag; A collecting means for performing ad hoc network communication with a portable terminal possessed by the person to be observed, forming a group, and collecting information on the neighboring portable terminal and tag information read by the neighboring portable terminal, The mobile terminal possessed by the watcher comprises transmission means for transmitting the collected information and tag information of the adjacent mobile terminal to the data server, and the data server Storage means for storing map information, position information generating means for expanding the collected mobile terminal information on a map and generating position information based on the received tag information, and the generated position information And a position information transmitting means for transmitting to a terminal possessed by the observer, and a terminal system that the observer possesses receives the position information and displays the position information. ing.

  According to this invention, the tag information reading means of the portable terminal possessed by the watcher and the portable terminal possessed by the plurality of persons to be read reads the tag information from the wireless tag, and the collecting means is possessed by the plurality of persons to be observed. The mobile terminal performs ad hoc network communication, forms a group, collects information on adjacent mobile terminals and tag information read by the adjacent mobile terminals, and the transmission unit collects information on the adjacent mobile terminals collected. And the portable terminal which a watcher possesses watching tag information transmits to a data server. Based on the received tag information, the location information generation unit of the data server expands the collected mobile terminal information on a prestored map to generate location information, and the location information transmission unit observes the generated location information. Sent to the terminal owned by the person. Then, the terminal possessed by the observer receives the position information and displays the position information. Therefore, the tag information is read from the wireless tag, ad-hoc network communication is performed, a group is formed, and information on adjacent mobile terminals is collected. It can be obtained. In addition, each portable terminal possessed by the watcher can ensure security by only reading the tag information from the wireless tag and not providing the information. Furthermore, since the mobile terminal possessed by the watcher transmits the read tag information and the collected information of the adjacent mobile terminal to the data server, unnecessary communication from other mobile terminals is eliminated. Network load can be reduced.

  (6) In the monitoring system according to (5), the tag information reading means of each portable terminal possessed by the watcher reads tag information from the wireless tag by short-range wireless communication. Proposes a monitoring system.

  According to this invention, the tag information reading means of each portable terminal possessed by the watcher reads the tag information from the wireless tag by short-range wireless communication, so that the area can be specified within a certain range.

  (7) According to the present invention, in the monitoring system according to (5), the data server includes storage means for storing received tag information and collected mobile terminal information in time series, and the position information generating means Has proposed a monitoring system characterized in that, based on the received tag information, the collected mobile terminal information is developed on a map in time series.

  According to the present invention, since the position information generating means develops the collected mobile terminal information on a map based on the received tag information in time series, the gait of a specific observer is accurately traced. be able to.

(8) The present invention comprises an abnormal state detection means for detecting an abnormal state from the information stored in the storage means for the monitoring system of (7),
There has been proposed a monitoring system comprising notification means for notifying the mobile terminal possessed by each watcher of an abnormal condition when the abnormal condition detection means detects an abnormal condition.

  According to this invention, when the abnormal state detection means of the data server detects an abnormal state from the information stored in the storage means, and the e-mail transmission means detects the abnormal state when the abnormal state detection means detects the abnormal state, The mobile terminal that each possesses is notified of the abnormal state. Therefore, the watcher who has received the notification notifying the abnormal state can promptly respond to the occurrence of the abnormal state.

(9) The present invention comprises a management server that manages a list of portable terminals and a list of wireless tags that can form the group for the monitoring system of (1) or (5),
A monitoring system is proposed in which the management server distributes the list to all mobile terminals, and all the mobile terminals exclude information not on the list.

  According to this invention, the management server manages a list of portable terminals that can form a group and a list of RFID tags, distributes the list to all portable terminals, and all portable terminals are not on the list. Exclude information. Therefore, the list can distinguish whether the transmitted information is information related to the portable terminal or information related to the wireless tag, and can prevent a third party from entering the system.

  (10) The present invention relates to the monitoring system according to (1) or (5), wherein the management server manages schedule data, and according to the schedule data, monitoring mode and update of management data such as a list and a schedule We have proposed a monitoring system characterized by controlling switching between maintenance modes.

  According to this invention, the management server manages the schedule data, and controls the switching between the watching mode and the maintenance mode for updating the management data such as the list and schedule according to the schedule data. It can be operated efficiently.

  (11) The present invention relates to a monitoring method in a monitoring system comprising a plurality of wireless tags arranged at predetermined positions, a portable terminal possessed by a plurality of persons to be observed, a terminal possessed by the observer, and a data server. Each mobile terminal possessed by the person to be observed performs a first step of reading tag information from the wireless tag, performs ad hoc network communication, and information on adjacent mobile terminals and the adjacent mobile terminals A second step of collecting the read tag information; and only one mobile terminal among the mobile terminals possessed by the plurality of observers collects the information and tag information of the adjacent mobile terminals collected by the data server And the data server expands the collected mobile terminal information on a map that stores in advance based on the received tag information. A fourth step of generating information, a fifth step of transmitting the generated position information to a terminal possessed by the observer, and a terminal possessed by the observer receiving the position information, A monitoring method characterized by comprising a sixth step of displaying information is proposed.

  According to the present invention, each mobile terminal possessed by the person to be observed reads tag information from the wireless tag, performs ad hoc network communication, and receives information on the adjacent mobile terminal and tag information read by the adjacent mobile terminal. Of the mobile terminals that are collected and possessed by a plurality of persons to be observed, only one mobile terminal transmits the collected information and tag information of the adjacent mobile terminals to the data server. Based on the received tag information, the data server develops the collected mobile terminal information on a map that stores in advance, generates position information, and transmits the generated position information to the terminal owned by the observer. Then, the terminal possessed by the observer receives the position information and displays the position information. Therefore, the tag information is read from the wireless tag, ad-hoc network communication is performed, a group is formed, and information on adjacent mobile terminals is collected. It can be obtained. In addition, each portable terminal possessed by the person to be observed can read only the tag information from the wireless tag and does not provide information, thereby ensuring security.

  (12) The present invention provides a plurality of wireless tags arranged at predetermined positions, a portable terminal possessed by a plurality of observers, a portable terminal possessed by a plurality of watchers, and a terminal possessed by an observer. A monitoring method in a monitoring system comprising a data server, wherein a portable terminal possessed by the watcher and a portable terminal possessed by a plurality of observers read tag information from the wireless tag; A second step of performing ad hoc network communication with mobile terminals possessed by the plurality of observers and collecting information on adjacent mobile terminals and tag information read by the adjacent mobile terminals; and the collected adjacent A third step in which the portable terminal possessed by the watcher transmits the portable terminal information and the tag information to the data server; and the data server receives the received tag. Based on the information, a fourth step of generating the position information by expanding the collected portable terminal information on a prestored map, and a fifth step of transmitting the generated position information to the terminal possessed by the observer A monitoring method is provided, comprising: a step; and a sixth step in which the terminal possessed by the observer receives the position information and displays the position information.

  According to the present invention, the portable terminal possessed by the watcher and the portable terminal possessed by the plurality of observers read the tag information from the wireless tag, and perform ad hoc network communication with the portable terminals possessed by the plurality of observers. Then, the information of the adjacent mobile terminal and the tag information read by the adjacent mobile terminal are collected, and the mobile terminal that the watcher possesses the collected information of the adjacent mobile terminal and the tag information transmits to the data server. Based on the received tag information, the data server develops the collected portable terminal information on a map stored in advance to generate position information, and transmits the generated position information to a terminal owned by the observer. Then, the terminal possessed by the observer receives the position information and displays the position information. Therefore, the tag information is read from the wireless tag, ad-hoc network communication is performed, a group is formed, and information on adjacent mobile terminals is collected. It can be obtained. In addition, each portable terminal possessed by the watcher and the person to be observed only reads the tag information from the wireless tag, and does not provide information, thereby ensuring security. Furthermore, since the mobile terminal possessed by the watcher transmits the read tag information and the collected information of the adjacent mobile terminal to the data server, unnecessary communication from other mobile terminals is eliminated. Network load can be reduced.

  (13) The present invention relates to a monitoring method in a monitoring system comprising a plurality of wireless tags arranged at predetermined positions, a portable terminal possessed by a plurality of persons to be observed, a terminal possessed by the observer, and a data server. Each mobile terminal possessed by the person to be observed performs a first step of reading tag information from the wireless tag, performs ad hoc network communication, and information on adjacent mobile terminals and the adjacent mobile terminals A second step of collecting the read tag information; and only one mobile terminal among the mobile terminals possessed by the plurality of observers collects the information and tag information of the adjacent mobile terminals collected by the data server And the data server expands the collected mobile terminal information on a map that stores in advance based on the received tag information. A fourth step of generating information, a fifth step of transmitting the generated position information to a terminal possessed by the observer, and a terminal possessed by the observer receiving the position information, A program for causing a computer to execute a sixth step of displaying information is proposed.

  According to this invention, each portable terminal possessed by the person to be observed reads tag information from the wireless tag, performs ad hoc network communication, and collects information on the neighboring portable terminal and tag information read by the neighboring portable terminal Then, only one mobile terminal among the mobile terminals possessed by a plurality of persons to be observed transmits the collected information and tag information of the adjacent mobile terminals to the data server. Based on the received tag information, the data server develops the collected mobile terminal information on a map that stores in advance, generates position information, and transmits the generated position information to the terminal owned by the observer. Then, the terminal possessed by the observer receives the position information and displays the position information. Therefore, the tag information is read from the wireless tag, ad-hoc network communication is performed, a group is formed, and information on adjacent mobile terminals is collected. It can be obtained. In addition, each portable terminal possessed by the person to be observed can read only the tag information from the wireless tag and does not provide information, thereby ensuring security.

  (14) The present invention provides a plurality of wireless tags arranged at predetermined positions, a portable terminal possessed by a plurality of observers, a portable terminal possessed by a plurality of watchers, and a terminal possessed by an observer. A monitoring method in a monitoring system comprising a data server, wherein a portable terminal possessed by the watcher and a portable terminal possessed by a plurality of observers read tag information from the wireless tag; A second step of performing ad hoc network communication with mobile terminals possessed by the plurality of observers and collecting information on adjacent mobile terminals and tag information read by the adjacent mobile terminals; and the collected adjacent A third step in which the portable terminal possessed by the watcher transmits the portable terminal information and the tag information to the data server; and the data server receives the received tag. Based on the information, a fourth step of generating the position information by expanding the collected portable terminal information on a prestored map, and a fifth step of transmitting the generated position information to the terminal possessed by the observer A program for causing a computer to execute a step and a sixth step in which the terminal possessed by the observer receives the position information and displays the position information is proposed.

  According to the present invention, the portable terminal possessed by the watcher and the portable terminal possessed by the plurality of observers read the tag information from the wireless tag, and perform ad hoc network communication with the portable terminals possessed by the plurality of observers. Then, the information of the adjacent mobile terminal and the tag information read by the adjacent mobile terminal are collected, and the mobile terminal that the watcher possesses the collected information of the adjacent mobile terminal and the tag information transmits to the data server. Based on the received tag information, the data server develops the collected portable terminal information on a map stored in advance to generate position information, and transmits the generated position information to a terminal owned by the observer. Then, the terminal possessed by the observer receives the position information and displays the position information. Therefore, the tag information is read from the wireless tag, ad-hoc network communication is performed, a group is formed, and information on adjacent mobile terminals is collected. It can be obtained. In addition, each portable terminal possessed by the watcher and the person to be observed only reads the tag information from the wireless tag, and does not provide information, thereby ensuring security. Furthermore, since the mobile terminal possessed by the watcher transmits the read tag information and the collected information of the adjacent mobile terminal to the data server, unnecessary communication from other mobile terminals is eliminated. Network load can be reduced.

  According to the present invention, the tag information is read from the wireless tag, ad-hoc network communication is performed, a group is formed, and information on adjacent mobile terminals is collected. It is possible to obtain information on the person. Further, each portable terminal possessed by the person to be observed or each portable terminal possessed by the watcher only reads the tag information from the wireless tag and does not provide information, so that security can be ensured. Furthermore, since the mobile terminal possessed by the specific observer or the mobile terminal possessed by the watcher transmits the read tag information and the collected information of the adjacent mobile terminal to the data server, This eliminates unnecessary communication from the mobile terminal and reduces the load on the network. In addition, when an abnormal state is detected, a mail to that effect is delivered to the watcher, so that it is possible to take immediate action against the abnormal state.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Note that the constituent elements in the present embodiment can be appropriately replaced with existing constituent elements, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the present embodiment does not limit the contents of the invention described in the claims.

<First Embodiment>
The watching system according to the present embodiment will be described in detail with reference to FIGS.

<Configuration of watching system>
As shown in FIG. 1, the monitoring system according to the present embodiment includes portable terminals 1a, 1b, and 1c possessed by a person to be observed, for example, A, B, and C, and wireless tags 2a, 2b, 2c, a data server 3, a portable terminal 4 possessed by an observer, and a management server 5,
A mobile terminal 1 a possessed by a specific observer, the data server 3, a mobile terminal 4 possessed by the observer, and a management server 5 are connected via a network 6. In the present embodiment, for convenience of explanation, the number of wireless tags provided on the portable terminal, the utility pole, and the like possessed by the person to be observed is represented by three. However, these numbers may be any number.

<Configuration of the mobile terminal owned by the observer>
As shown in FIG. 2, the mobile terminals 1a, 1b, and 1c possessed by the observer include a short-range wireless unit 11, an ad hoc communication unit 12, a reception list database (DB) 13, an information collection unit 14, The transmitter 15 is configured.

  The short-range wireless unit 11 reads information from the wireless tags 2a, 2b, and 2c provided on the above-described utility poles, and for example, Bluetooth (registered trademark) is used. In addition, as short-range radio | wireless, you may use not only Bluetooth (registered trademark) but Zigbee (registered trademark). In the present embodiment, only information is read from the wireless tags 2a, 2b, and 2c, and information is not provided, which is advantageous in terms of security. Further, since it is a short-range wireless, the area is specified.

  The ad hoc communication unit 12 performs grouping by performing communication between adjacent mobile terminals 1a, 1b, and 1c. Specifically, taking FIG. 1 as an example, the mobile terminals 1a, 1b, and 1c possessed by the observers A, B, and C perform ad hoc communication to include the person (A, B, C). ) Is obtained, and it can be seen that there are persons B and C to be observed near themselves (for example, A). Ad hoc communication is also preferably performed by short-range wireless using Bluetooth (registered trademark) or Zigbee (registered trademark). By performing ad hoc communication using such short-range wireless communication, an area can be specified, so that only adjacent mobile terminals can communicate with each other.

  The reception list database (DB) 13 is a storage device that stores a reception list transmitted from a management server described later. This reception list includes information on portable terminals and the like that can use this system, and the ad hoc communication unit 12 refers to this list to determine whether or not to receive from the other party portable terminal. By using such a list, intrusion of a third party can be prevented in advance.

  The information collection unit 14 includes information on the wireless tags read by the short-range wireless unit 11 (# 1, # 2, and # 3 in FIG. 1) and information on the mobile terminals received by the ad hoc communication unit 12 (for example, A, B, C) are collected, and information such as (# 2, A, B, C) is output to the transmitter 15. The transmission unit 15 transmits the input information (# 2, A, B, C) to the data server 3 via the network 6. Note that since the wireless tag is read at predetermined time intervals, only the portable terminal information is transmitted when the wireless tag cannot be read. In addition, transmission of data to the data server 3 is performed by one of the observers. By doing so, it is possible to prevent the same information from being transmitted from a plurality of portable terminals, and to reduce the amount of communication. A method of selecting a representative (leader) will be described later.

<Data server configuration>
As shown in FIG. 3, the data server 3 according to the present embodiment includes a reception unit 21, a position information generation unit 22, a map information database (DB) 23, and a transmission unit 24.

  The receiving unit 21 receives, from the representative portable terminal of the person to be observed, information on a portable terminal that is close to position information such as (# 2, A, B, C), for example. Note that when there is no wireless tag information in the received information, information indicating that the received information is at a predetermined place, for example, a place away from the school route, is indicated.

  The position information generating unit 22 stores the information received by the receiving unit 21 in a storage device (not shown), and chronologically stores the information on the map information stored in the map information database (DB) 23, for example, as shown in FIG. The position information is generated as shown in FIG.

  The map information database (DB) 23 is a storage device that stores map information, and the transmission unit 24 transmits the position information generated by the position information generation unit 22 to the observer's mobile terminal 4 via the network 6. . Note that the terminal of the observer at the transmission destination is not limited to a portable terminal, and may be a personal computer, for example.

<Configuration of management server>
As shown in FIG. 4, the management server 4 according to the present embodiment includes a reception unit 31, a list update unit 32, a list information database (DB) 33, a schedule management unit 34, and a schedule information database (DB) 35. And a transmission unit 36.

  The receiving unit 31 receives list update information and schedule information from an external device (not shown). The list update unit 32 updates the old list based on the list update information received by the reception unit 31, stores the new list in the list information database (DB) 33, and transmits a notification that the list has been updated. To 36.

  The list information database (DB) 33 is a storage device that stores the list, and outputs the updated list to the transmission unit 36 in accordance with the update of the list. The schedule management unit 34 manages the schedule based on the schedule update information received by the reception unit 31 and stores new schedule information in the schedule information database (DB) 35.

  The schedule information database (DB) 35 is a storage device that stores a schedule, and outputs the updated schedule to the transmission unit 36 in accordance with the update of the schedule. The transmission unit 36 transmits the input new list and schedule information to the mobile terminals 1a, 1b, and 1c possessed by the person to be observed via the network 6.

<Processes related to ad hoc networks>
Next, processing in the ad hoc network will be described in detail.

  In this embodiment, the ad hoc network is constructed by performing initialization processing, originating node processing for transmitting the HELLO message from the own node to the adjacent node, ACK receiving processing for processing the ACK message from the adjacent node, and the HELLO message from the previous node. It comprises a relay node process relaying to an adjacent node, a terminal node process performed by a terminal node, and a leader determining process for determining a leader from routing information notified from each node.

<Initialization process>
The ad hoc network construction function holds the following data.
1) Adjacent node table This table holds the MAC addresses of detected adjacent nodes. Also, adjacent nodes that are not defined in the terminal definition file are discarded.

2) Tag information table This table holds tag information detected by the own node and tag information notified from other nodes. If the detected MAC address of the adjacent node is a tag, it is stored in a tag information table. Further, when a plurality of tags are detected, the youngest MAC address is held in the tag information table.

3) Routing table This table holds path information (MAC address of relay node, node attribute) from the self node to the terminal node. If the route is different even if the terminal node is the same, a different route is used.

For example, the adjacent node table / routing table that A has in the case of FIG. 7 is the following information.
1) Adjacent node table; B, E, G
2) Routing table; End node: D Relay node: B → C
; Terminal node: D Relay node: G
; Terminal node: F Relay node: E
By counting the number of relay nodes, the number of hops to the end node can be counted.

  Use the discovery function to detect neighboring nodes. Then, the detected MAC address of the adjacent node is checked with the terminal definition file, and the adjacent node that does not exist in the terminal definition file is discarded. If the detected adjacent node is a tag, it is not treated as an ad hoc target adjacent node. Furthermore, when a plurality of tags are detected, the tag with the youngest MAC address is validated. Then, the routing table is initialized.

<Processing of calling node>
The source node notifies the routing table of its own node to all adjacent nodes. The information to be notified includes the MAC address of the own node, the number of hops (specified in the operation definition file), all information of the routing table of the own node (including the adjacent node table), and the tag information table.

<Relay node processing>
A node that has received a message from the previous node performs relay node processing, termination node processing, and ACK reception processing according to the received message. When the number of adjacent node tables is 0, the Bluetooth (registered trademark) discovery function is called to detect adjacent nodes.

  The detected MAC address of the adjacent node is checked with the terminal definition file, and the adjacent node that does not exist in the terminal definition file is discarded. If the detected adjacent node is a tag, it is not treated as an ad hoc target adjacent node. When a plurality of tags are detected, the tag with the smallest MAC address is made valid.

  Updates (adds or changes) the routing table of the node based on the routing information included in the received message.

  An ACK message is notified to the previous node (source node of the received message). The information to be notified is the MAC address of the own node, the number of hops = 0, all information of the routing table of the own node (including the adjacent node table), and the tag information table.

  When an update occurs in the routing table of the own node, the number of hops of the received message is subtracted, and the updated routing table of the own node is notified to all adjacent nodes except the previous node (message relay). The information to be notified includes the MAC address of the own node, the number of hops (a value obtained by subtracting the hop number of the received message), all information of the routing table of the own node (including the adjacent node table), and the tag information table.

<ACK reception processing>
Updates (adds or changes) the routing table of the node based on the routing information included in the received message. Note that the ACK message is not relayed.

<Terminal node processing>
Updates (adds or changes) the routing table of the node based on the routing information included in the received message. An ACK message is notified to the previous node (source node of the received message). The information to be notified includes the MAC address of the own node, the number of hops = 0 (ACK message), all information of the routing table of the own node (including the adjacent node table), and the tag information table.

<Decision of leader>
If there is a node having a smaller MAC address in the routing table of the own node, the leader authority is abandoned. As a result, the node having the smallest MAC address becomes a leader and communicates with the data server 3.

<Data reception of ad hoc network>
1) Check the format of the received message. Discard if the message has an abnormal format.
2) The received message is analyzed, and the routing information table and tag information table are updated.

<Discovery function>
The MAC address of the adjacent node is searched using the discovery function of Bluetooth (registered trademark). The ad hoc network construction procedure is notified of the MAC address list of the searched adjacent node.

<Data transmission function>
The ad hoc network construction information is transmitted to the designated node by Bluetooth (registered trademark).

<Data reception function>
Accept connections from other nodes and receive data via Bluetooth (registered trademark).
In the present embodiment, Bluetooth (registered trademark) is described as an example of the wireless format, but the present invention is not limited to this, and Zigbee (registered trademark) may be used.

<Monitoring system processing>
Processing of the watching system according to the present embodiment will be described using FIG.

  First, each portable terminal 1a, 1b, 1c possessed by the person to be observed reads tag information from the wireless tags 2a, 2b, 2c (step S101). Next, ad hoc network communication is performed, and information on adjacent mobile terminals and tag information held by the adjacent mobile terminals are collected (step S102).

  Of the mobile terminals possessed by a plurality of observers, only one mobile terminal transmits the collected information and tag information of the adjacent mobile terminals to the data server 3 (step S103).

  Based on the received tag information, the data server 3 expands the collected mobile terminal information on a map that stores in advance and generates position information (step S104), and the generated position information is transferred to the terminal possessed by the observer. Transmit (step S105). Then, the terminal owned by the observer receives the position information and displays the position information (step S106).

  As described above, according to the present embodiment, since the tag information is read from the wireless tag, ad hoc network communication is performed, a group is formed, and information on adjacent mobile terminals is collected. You can get information about other people who are with you. In addition, each portable terminal possessed by the person to be observed can read only the tag information from the wireless tag and does not provide information, thereby ensuring security. Furthermore, since the portable terminal possessed by the specific observer transmits the read tag information and the collected information of the adjacent portable terminal to the data server, useless communication from other portable terminals To reduce the load on the network.

<Second Embodiment>
The watching system according to the present embodiment will be described in detail with reference to FIGS.

<Configuration of watching system>
As shown in FIG. 8, the watching system according to the present embodiment includes portable terminals 1a, 1b, and 1c possessed by an observer, for example, A, B, and C, a portable terminal 1z possessed by a watcher, a power pole, and the like. The wireless tags 2a, 2b, 2c provided in the mobile phone, the data server 3, the mobile terminal 4 possessed by the observer, and the management server 5, the mobile terminal 1z possessed by the watcher, the data server 3, The mobile terminal 4 and the management server 5 possessed by the observer are connected via the network 6. In the present embodiment, for convenience of explanation, the number of wireless tags provided on the portable terminal, the utility pole, and the like possessed by the person to be observed is represented by three. However, these numbers may be any number.

<Configuration of mobile terminals owned by watchers>
As shown in FIG. 9, the portable terminal 1z possessed by the watcher includes a short-range wireless unit 41, an ad hoc communication unit 42, a reception list database (DB) 43, an information collection unit 44, a transmission unit 45, The mail receiving unit 46 and the display unit 47 are included. Note that the functions of the mobile terminal possessed by the observer are the same as those in the first embodiment, except that the mobile terminal possessed by the watcher is included in the ad hoc network.

  The short-range wireless unit 41 reads information from the wireless tags 2a, 2b, and 2c provided on the above-described utility poles, and for example, Bluetooth (registered trademark) is used. In the present embodiment, information is only read from the wireless tags 2a, 2b, and 2c and information is not provided, which is advantageous in terms of security. Further, since it is a short-range wireless, the area is specified.

  The ad hoc communication unit 42 performs grouping by performing communication with the adjacent mobile terminals 1a, 1b, and 1c. Specifically, taking FIG. 1 as an example, by performing ad hoc communication between the mobile terminals 1a, 1b, and 1c possessed by the observers A, B, and C and the mobile terminal 1z possessed by the watcher, (Z, A, B, C) including the data is obtained, and it can be seen that the observers A, B, and C are near the watcher Z.

  The reception list database (DB) 43 is a storage device that stores a reception list transmitted from a management server described later. The reception list includes information on portable terminals that can use the system, and the ad hoc communication unit 42 refers to the list to determine whether or not to receive from the other party portable terminal. By using such a list, intrusion of a third party can be prevented in advance.

  The information collection unit 44 includes information on the wireless tags read by the short-range wireless unit 41 (# 1, # 2, # 3 in FIG. 1) and information on the mobile terminals received by the ad hoc communication unit 42 (for example, Z, A, B, C) are collected, and information such as (# 2, Z, A, B, C) is output to the transmitter 55. The transmission unit 45 transmits the input information (# 2, Z, A, B, C) to the data server 3 via the network 6. Note that the transmission of data to the data server 3 is performed by a portable terminal possessed by the watcher. By doing so, it is possible to prevent the same information from being transmitted from a plurality of portable terminals, and to reduce the amount of communication.

  The mail receiving unit 46 receives an e-mail when a data server described later detects an abnormal state. In the present embodiment, e-mail is exemplified as the abnormal state notification means. However, the present invention is not limited to this, and SMS (Short Message Service) or the like may be used. The display unit 47 is a display device that displays the contents of the received e-mail.

<Data server configuration>
As shown in FIG. 10, the data server 3 according to the present embodiment includes a reception unit 51, a position information generation unit 52, a map information database (DB) 53, a transmission unit 54, an abnormal state detection unit 55, The mail transmission part 56 is comprised.

  The receiving unit 51 receives, from the portable terminal 1z possessed by the watcher, for example, position information such as (# 2, Z, A, B, C) and information on a nearby portable terminal.

  The position information generating unit 52 stores the information received by the receiving unit 51 in a storage device (not shown), and chronologically stores the information on the map information stored in the map information database (DB) 53, for example, as shown in FIG. The position information is generated as shown in FIG.

  The map information database (DB) 53 is a storage device that stores map information. The transmission unit 54 transmits the position information generated by the position information generation unit 52 to the mobile terminal 4 of the observer via the network 6. . Note that the terminal of the observer at the transmission destination is not limited to a portable terminal, and may be a personal computer, for example.

  The abnormal state detection unit 55 detects the abnormal state from the information generated by the position information generation unit 52 and stored in the map information database (DB) 53, and is a portable terminal possessed by the watcher via the mail transmission unit 55. Send e-mail to 1z.

<Configuration of management server>
The management server 4 according to the present embodiment is substantially the same as the first embodiment, and transmits a new list and schedule information via the network 6 to the mobile terminal 1z possessed by the watcher. Is different.

<Monitoring system processing>
The process of the watching system according to the present embodiment will be described with reference to FIG.

  First, a portable terminal possessed by a watcher and a portable terminal possessed by a plurality of observers read tag information from a wireless tag (step S201), and carry out ad hoc network communication with portable terminals possessed by a plurality of observers. To collect information on adjacent mobile terminals and tag information held by the adjacent mobile terminals (step S202).

  The collected portable terminal information and the tag information held by the portable terminal owned by the observer are transmitted to the data server (step S203).

  Based on the received tag information, the data server expands the collected mobile terminal information on a previously stored map to generate position information (step S204), and transmits the generated position information to the terminal owned by the observer. (Step S205). Then, the terminal owned by the observer receives the position information and displays the position information (step S206).

  The process related to the ad hoc network is the same as that in the first embodiment.

  Therefore, according to the present embodiment, the tag information is read from the wireless tag, and ad hoc network communication is performed to form a group and collect information on adjacent mobile terminals. Information on the subject can be obtained. In addition, each portable terminal possessed by the watcher and the person to be observed only reads the tag information from the wireless tag, and does not provide information, thereby ensuring security. Furthermore, since the mobile terminal possessed by the watcher transmits the read tag information and the collected information of the adjacent mobile terminal to the data server, unnecessary communication from other mobile terminals is eliminated. Network load can be reduced. In addition, when an abnormal state is detected, a mail to that effect is delivered to the watcher, so that it is possible to take immediate action against the abnormal state.

  These programs are recorded on a computer-readable recording medium, and the program recorded on the recording medium is stored in each of a portable terminal, a data server, and a management server (all are computer systems) possessed by an observer and a watcher. The watching system of the present invention can be realized by reading and executing. The computer system here includes an OS and hardware such as peripheral devices.

  Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW (World Wide Web) system is used. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.

  The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

  The embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and includes designs and the like that do not depart from the gist of the present invention.

It is a lineblock diagram of a watching system concerning a 1st embodiment. It is a block diagram of the portable terminal which the to-be-observed person which concerns on 1st Embodiment possesses. It is a lineblock diagram of the data server concerning a 1st embodiment. It is an example of a display concerning a 1st embodiment. It is a block diagram of the management server which concerns on 1st Embodiment. It is a figure for demonstrating the adjacent node table and routing table which concern on 1st Embodiment. It is a processing flow of the watching system which concerns on 1st Embodiment. It is a block diagram of the watching system which concerns on 2nd Embodiment. It is a block diagram of the portable terminal which the watcher which concerns on 2nd Embodiment possesses. It is a block diagram of the data server which concerns on 2nd Embodiment. It is a processing flow of the watching system which concerns on 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a, 1b, 1c ... Mobile terminal possessed by an observer 1z ... Portable terminal possessed by a watcher 2a, 2b, 2c ... Wireless tag 3 ... Data server 4 ... Observer possessed Mobile terminal 5 ... management server 6 ... network 11, 41 ... short-range wireless unit 12, 42 ... ad hoc communication unit 13, 43 ... reception list database (DB)
14, 44 ... Information collection unit 15, 24, 36, 45, 54 ... Transmission unit 21, 31, 51 ... Reception unit 22, 52 ... Location information generation unit 23, 53 ... Map Information database (DB)
32 ... List update unit 33 ... List information database (DB)
34 ... Schedule management unit 35 ... Schedule information database (DB)
46 ... Mail receiving unit 47 ... Display unit 55 ... Abnormal state detecting unit 56 ... Mail sending unit

Claims (14)

A monitoring system comprising a plurality of wireless tags arranged at a predetermined position, a portable terminal possessed by a plurality of observers, a terminal possessed by an observer, and a data server,
Each portable terminal possessed by the subject is
Tag information reading means for reading tag information from the wireless tag;
A collecting means for performing ad hoc network communication, forming a group, and collecting information of adjacent mobile terminals and tag information read by the adjacent mobile terminals;
Transmitting means for transmitting the read tag information and the collected information of adjacent mobile terminals to the data server;
With
Storage means for storing map information by the data server;
Based on the received tag information, position information generating means for expanding the collected mobile terminal information on a map and generating position information;
Position information transmitting means for transmitting the generated position information to a terminal possessed by the observer;
With
A monitoring system, wherein a terminal possessed by the observer receives the position information and displays the position information.   Of the mobile terminals possessed by the plurality of persons to be observed, only the transmission means of one mobile terminal transmits the read tag information and the collected information of the adjacent mobile terminals to the data server. The watching system according to claim 1, wherein:   The monitoring system according to claim 1, wherein tag information reading means of each portable terminal possessed by the person to be observed reads tag information from the wireless tag by short-range wireless communication.   The data server includes storage means for storing received tag information and collected mobile terminal information in time series, and the position information generating means is time series based on the received tag information, The monitoring system according to claim 1, wherein the collected mobile terminal information is developed on a map. A watch comprising a plurality of wireless tags arranged at predetermined positions, a mobile terminal possessed by a plurality of observers, a mobile terminal possessed by a plurality of watchers, a terminal possessed by the observer, and a data server A system,
A mobile terminal possessed by the watcher and a mobile terminal possessed by a plurality of observers,
Tag information reading means for reading tag information from the wireless tag;
Collecting means for performing ad hoc network communication with mobile terminals possessed by the plurality of observers, forming a group, and collecting information on adjacent mobile terminals and tag information read by the adjacent mobile terminals;
With
The portable terminal possessed by the watcher is
Transmitting means for transmitting the read tag information and the collected information of adjacent mobile terminals to the data server;
With
Storage means for storing map information by the data server;
Based on the received tag information, position information generating means for expanding the collected mobile terminal information on a map and generating position information;
Position information transmitting means for transmitting the generated position information to a terminal possessed by the observer;
With
A monitoring system, wherein a terminal possessed by the observer receives the position information and displays the position information.   6. The watching system according to claim 5, wherein tag information reading means of each portable terminal possessed by the watcher reads tag information from the wireless tag by short-range wireless communication.   The data server includes storage means for storing received tag information and collected mobile terminal information in time series, and the position information generating means is time series based on the received tag information, 6. The monitoring system according to claim 5, wherein the collected mobile terminal information is developed on a map. Comprising an abnormal state detecting means for detecting an abnormal state from the information stored in the storage means,
8. The watching system according to claim 7, further comprising notification means for notifying the mobile terminal possessed by each of the watchers of the abnormal state when the abnormal state detecting means detects the abnormal state. A management server that manages a list of mobile terminals that can form the group and a list of wireless tags;
6. The monitoring system according to claim 1, wherein the management server distributes the list to all mobile terminals, and the mobile terminals exclude information that is not on the list. .   The management server manages schedule data, and controls switching between a watch mode and a maintenance mode for updating management data such as a list and a schedule according to the schedule data. The watching system according to claim 5. A monitoring method in a monitoring system comprising a plurality of wireless tags arranged at a predetermined position, a portable terminal possessed by a plurality of observers, a terminal possessed by an observer, and a data server,
A first step in which each portable terminal possessed by the person to be read reads tag information from the wireless tag;
A second step of performing ad hoc network communication and collecting information on adjacent mobile terminals and tag information read by the adjacent mobile terminals;
A third step in which only one mobile terminal among the mobile terminals possessed by the plurality of observers transmits the read tag information and the collected information of the adjacent mobile terminals to the data server; ,
A fourth step in which the data server generates position information by expanding the collected mobile terminal information on a map storing in advance based on the received tag information;
A fifth step of transmitting the generated position information to a terminal possessed by the observer;
A sixth step in which the terminal possessed by the observer receives the position information and displays the position information;
A monitoring method characterized by comprising: A watch comprising a plurality of wireless tags arranged at predetermined positions, a portable terminal possessed by a plurality of observers, a portable terminal possessed by a plurality of watchers, a terminal possessed by the observer, and a data server A monitoring method in the system,
A portable terminal possessed by the watcher and a portable terminal possessed by a plurality of observers, the first step of reading tag information from the wireless tag;
A second step of performing ad hoc network communication with mobile terminals possessed by the plurality of observers and collecting information on adjacent mobile terminals and tag information read by the adjacent mobile terminals;
A third step in which the portable terminal owned by the watcher transmits the read tag information and the collected information of the adjacent portable terminal to the data server;
A fourth step in which the data server generates position information by expanding the collected mobile terminal information on a prestored map based on the received tag information;
A fifth step of transmitting the generated position information to a terminal possessed by the observer;
A sixth step in which the terminal possessed by the observer receives the position information and displays the position information;
A monitoring method characterized by comprising: A method for causing a computer to execute a monitoring method in a monitoring system including a plurality of wireless tags arranged at a predetermined position, a portable terminal possessed by a plurality of observers, a terminal possessed by an observer, and a data server A program,
A first step in which each portable terminal possessed by the person to be read reads tag information from the wireless tag;
A second step of performing ad hoc network communication and collecting information on adjacent mobile terminals and tag information read by the adjacent mobile terminals;
A third step in which only one mobile terminal among the mobile terminals possessed by the plurality of observers transmits the read tag information and the collected information of adjacent mobile terminals to the data server; ,
A fourth step in which the data server generates position information by expanding the collected mobile terminal information on a map that stores in advance based on the received tag information;
A fifth step of transmitting the generated position information to a terminal possessed by the observer;
A sixth step in which the terminal possessed by the observer receives the position information and displays the position information;
A program that causes a computer to execute. A watch comprising a plurality of wireless tags arranged at predetermined positions, a mobile terminal possessed by a plurality of observers, a mobile terminal possessed by a plurality of watchers, a terminal possessed by the observer, and a data server A program for causing a computer to execute a watching method in a system,
A portable terminal possessed by the watcher and a portable terminal possessed by a plurality of observers, the first step of reading tag information from the wireless tag;
A second step of performing ad hoc network communication with mobile terminals possessed by the plurality of observers and collecting information on adjacent mobile terminals and tag information read by the adjacent mobile terminals;
A third step in which the portable terminal possessed by the watcher transmits the read tag information and the collected information of the neighboring portable terminal to the data server;
A fourth step in which the data server generates position information by expanding the collected mobile terminal information on a prestored map based on the received tag information;
A fifth step of transmitting the generated position information to a terminal possessed by the observer;
A sixth step in which the terminal possessed by the observer receives the position information and displays the position information;
A program that causes a computer to execute.

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