JP2007166370A - Monitoring collaboration instrument and method for mobile station monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an external collaboration instrument and method used for a monitoring network system which allows monitoring of even a mobile station monitored by another mobile station monitoring system among different mobile station monitoring systems which are operated independently. <P>SOLUTION: The mobile station monitoring systems perform a monitoring operation independently of each other. Each mobile station monitoring system includes an identification information allocating means which searches for identification information which can be used within each mobile station monitoring system but is not used now when it is provided with the mobile station monitoring information necessary for monitoring an external mobile station monitored by another mobile station monitoring system from the another mobile station monitoring system, and then allocates the unused identification information to the external mobile station to register it; and an external mobile station monitoring information recording and holding means for recording and holding the mobile station monitoring information necessary for monitoring the registered external mobile station in relation to the identification information allocated to the external mobile station in a mobile station information recording and holding means of the mobile station monitoring system. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention applies a wireless network system and GPS positioning technology to identify the position of a mobile device, mobile object, etc. (hereinafter collectively referred to as a mobile station) moving in a wide area, an identification number assigned to each mobile station, etc. In contrast to a mobile station monitoring system that performs centralized monitoring based on identification information (hereinafter referred to as ID), another mobile station monitoring system that operates independently of the mobile station monitoring system (hereinafter referred to as an external mobile station monitoring system) In particular, a mobile station other than a mobile station registered using identification information in advance in the mobile station monitoring system (hereinafter, An external mobile station that is monitored by the external mobile station monitoring system by enabling a wireless data link with the external mobile station monitoring system that monitors the external mobile station) Also, for concentrating monitored in the mobile station monitoring system, to enable the the monitoring coordinating device and method for monitoring cooperation between mobile station monitoring system.

  A base station and a plurality of mobile stations that are connected to the base station wirelessly and have positioning means such as GPS for measuring the position of the local station, and wirelessly communicate between the base station and each mobile station 2. Description of the Related Art A wireless network system that performs data communication and monitors each mobile station on the base station side based on position information from each mobile station is known.

  In this type of wireless network system, by using a polling method for wireless communication between the base station and the mobile station, it is not necessary to prepare one communication channel for each mobile station in order to avoid interference during communication. The applicant has proposed a wireless network system that enables position monitoring by DGPS (differential GPS) positioning of a plurality of mobile stations using a single wireless channel (see, for example, Patent Document 1).

Also, in such a wireless network system, the number of base stations that monitor each mobile station and the number of channels used are increased, and a control station that comprehensively manages these base stations and mobile stations, By providing a main control station that comprehensively manages the control station, the number of mobile stations that can be monitored is increased, the monitoring area for monitoring the position of the mobile station is expanded, and mobile stations between different channels A wireless network system capable of sharing information (such as location information of a mobile station) has been newly proposed by the present applicant (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 11-355859 JP 2002-152806 A

  In such a conventional wireless network system, in order to be able to monitor a mobile station in the network system, a wireless communication device dedicated to the system is installed, and a unique ID is assigned to each mobile station in advance in the system. In addition, it is necessary to register mobile station information of a mobile station to be monitored in a database in the wireless network system using an ID assigned in advance. In such a wireless network system, UTC time (Coordinated Universal Time) in GPS positioning is used as the system time.

  This means that even if there is some other mobile station monitoring system (external mobile station monitoring system) other than the mobile station monitoring system as described above, the monitoring mobile station in the external mobile station monitoring system becomes the mobile station monitoring system. It is impossible to register in advance, and the mobile station information cannot be taken into the mobile station monitoring system because the external mobile station monitoring system does not always monitor the mobile station by GPS. It is shown that.

  Accordingly, an object of the present invention is to solve the above-described problems of the conventional wireless network system and to monitor information necessary for monitoring mobile stations and the like monitored by each mobile station monitoring system operating independently of each other. External link apparatus and method that enable mobile station monitoring operation to be linked between mobile station monitoring systems operating independently of each other by allowing the mobile station to be monitored in another mobile station monitoring system I will provide a.

  In order to achieve the above object, the present invention comprises a plurality of mobile stations and a control station that monitors the plurality of mobile stations via wireless communication with the plurality of mobile stations, Mobile station information in which identification information that can be identified in advance is assigned to the plurality of mobile stations to be monitored, and mobile station monitoring information necessary for monitoring the plurality of mobile stations is recorded and held in association with the identification information A monitoring cooperation device for a mobile station monitoring system provided with a record holding unit, in the mobile station monitoring system, from another mobile station monitoring system performing a monitoring operation independently of the mobile station monitoring system When the mobile station monitoring information necessary for monitoring the external mobile station monitored by the other mobile station monitoring system is provided, search for unused identification information that can be used in the mobile station monitoring system. The unused Identification information allocating means for registering the external mobile station by allocating identification information to the external mobile station, and monitoring the registered external mobile station in association with the identification information allocated to the external mobile station The mobile station monitoring information record holding means for recording and holding the necessary mobile station monitoring information in the mobile station information record holding means of the mobile station monitoring system is provided.

  Further, in the above invention, the present invention, the identification information allocation means, examines whether the external mobile station corresponding to the mobile station monitoring information provided from the other mobile station monitoring system is already registered, If it has already been registered, it does not search for new unused identification information, and the external mobile station monitoring information record holding means relates to the identification information already assigned to the external mobile station, The mobile station monitoring information is sequentially recorded and held in the mobile station information record holding means.

  In the above invention, the mobile station monitoring information may include location information indicating the location of each mobile station, fixed information for identifying each mobile station, and each mobile station displayed on a display device. Display information to be used.

  In the above invention, the present invention is characterized in that position information of the plurality of mobile stations monitored in the mobile station monitoring system is obtained based on GPS positioning.

  Further, in the above invention, the present invention is arranged such that when the position information included in the mobile station monitoring information provided from the other mobile station monitoring system is not based on GPS positioning, the position information based on GPS positioning is coordinated. A conversion algorithm for conversion is further incorporated.

  Further, in the above invention, the present invention is characterized in that the position information is information updated every predetermined time, and includes information for specifying a position of each mobile station and information representing a positioning time.

  Further, in the above invention, the present invention determines whether or not a predetermined time has elapsed from a last update time when the external mobile station monitoring information record holding unit has updated the position information of the external mobile station, and When it is determined that the time has passed, it has means for releasing the identification information assigned to the external mobile station to other external mobile stations.

  In the present invention, the mobile station information record holding means records and holds the position information database that records and holds the position information, the fixed information database that records and holds the fixed information, and the display information. And a display information database.

  Further, in the above invention, the present invention provides the location information database, the fixed information database, and the display based on the identification information assigned to the mobile stations of the plurality of mobile stations and the external mobile station. It further comprises a display device that accesses an information database, acquires the position information of each mobile station, the fixed information, and the display information, and displays the information together with electronic map data on a display screen. And

  In the above invention, the present invention is characterized in that the position information further includes time information, and the time information used by the other mobile station monitoring system is different from the time information used by the mobile station monitoring system. In this case, the mobile station monitoring system further includes means for performing a synchronization process on the time information used by the other mobile station monitoring system so as to coincide with the time information used by the mobile station monitoring system.

  In the above invention, the present invention is characterized in that provision of the mobile station monitoring information between the mobile station monitoring system and the other mobile station monitoring system is performed via a LAN.

  In order to achieve the above object, the mobile station has a plurality of mobile stations and a control station that monitors the plurality of mobile stations through wireless communication with the plurality of mobile stations. Mobile station information record holding in which identification information that can be identified in advance is assigned to the plurality of mobile stations and the mobile station monitoring information necessary for monitoring the plurality of mobile stations is recorded and held in association with the identification information A monitoring cooperation method for a mobile station monitoring system provided with a means, in the mobile station monitoring system, from another mobile station monitoring system performing a monitoring operation independently from the mobile station monitoring system, When mobile station monitoring information necessary for monitoring an external mobile station monitored by another mobile station monitoring system is provided, search for unused identification information that can be used in the mobile station monitoring system. Unused knowledge Necessary for monitoring the registered external mobile station in association with the identification information allocation step for registering the external mobile station by allocating information to the external mobile station and the identification information allocated to the external mobile station The mobile station monitoring information is recorded and held in the mobile station information record holding means of the mobile station monitoring system.

  In the above invention, the identification information assignment step checks whether or not the external mobile station corresponding to the mobile station monitoring information provided from the other mobile station monitoring system is already registered. If it is registered, the mobile terminal does not search for new unused identification information, and the mobile information is related to the identification information already assigned to the external mobile station by the external mobile station monitoring information record holding step. The station monitoring information is sequentially recorded and held in the mobile station information record holding means.

  According to the present invention, mobile station monitoring information (for example, information recognition ID, positioning coordinates () that can monitor an external mobile station monitored by another monitoring system between monitoring systems that operate independently of each other. Latitude, longitude, etc.) and data such as mobile station identification names) can be imported, and mobile stations under the monitoring of other monitoring systems can also be monitored. Therefore, without changing each mobile station monitoring system, the mobile stations monitored by other mobile station monitoring systems that operate independently can be integrated on the database and monitored as the same system.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a conceptual diagram showing an example of a mobile station monitoring system to which this embodiment is applied. Note that the mobile station and the external mobile station described in the present embodiment are generic names for mobile devices such as mobile devices, vehicles, and aircraft that are movable, and are not particularly limited. Further, when monitorable information is provided from an external monitoring system, this monitorable information is necessary to monitor an external mobile station monitored by the external monitoring system in the mobile station monitoring system. Means information.

FIG. 1 shows that an external cooperation device is incorporated between two different mobile station monitoring systems (SY1, SY2) operating independently of each other so that the monitoring operations of the mobile stations to be monitored by each system can be linked to each other. The state is shown.
The mobile station monitoring system to which the present embodiment is applied includes, for example, a plurality of mobile stations 5, base stations 1, 2, and 3 that monitor the mobile stations 5 through wireless communication, and base stations 1 and 2, , 3 is a mobile station monitoring system SY1 (for example, Japanese Patent Application Laid-Open No. 11-355859 or Japanese Patent Application Laid-Open No. 11-355859) or a control station (control device) 4 that comprehensively manages mobile stations and base stations by wired communication with A mobile station monitoring system disclosed in Japanese Patent Application Laid-Open No. 2002-152806), an aircraft monitoring system SY2 including a control station 14 that monitors a plurality of aircraft 11 using a radar device 12 and the like can be considered (FIG. 1).

  In FIG. 1, the mobile station monitoring systems SY1 and SY2 that operate independently and independently of each other perform different monitoring operations (different identification information and the like), and the mobile stations monitored by them are different ( Other mobile stations monitoring systems cannot monitor the mobile stations (vehicles, aircraft, etc.) monitored in each mobile station monitoring system. However, in this embodiment, the mobile stations monitored by each monitoring system can be monitored by other monitoring systems between the mobile station monitoring systems operating independently of each other as described above. In addition, a monitoring cooperation device 13 is newly provided. Such a monitoring cooperation apparatus may be incorporated in each mobile station monitoring system, or may be provided independently. In any case, mobile station monitoring information from one monitoring system (for example, SY2) may be provided to the other monitoring system (for example, SY1) via the monitoring cooperation device 13. When the monitoring cooperation device 13 is incorporated in the mobile station monitoring system, for example, the monitoring cooperation device 13 may be incorporated in the control device itself of the control station 4 of SY1 in the form of software or hardware.

In the following description, it is assumed that the monitoring cooperation device 13 is configured to be incorporated only in the mobile station monitoring system SY1. In addition, the mobile station monitoring system SY1 takes in mobile station monitoring information from another mobile station monitoring system (hereinafter referred to as an external mobile station monitoring system) SY2 via the monitoring cooperation device 13, so that the external mobile station monitoring system Mobile stations monitored by SY2 (hereinafter referred to as external mobile stations) can also be monitored.
In the present embodiment, a case where the mobile station (aircraft) 11 monitored by the external mobile station monitoring system SY2 is particularly monitored by the mobile station monitoring system SY1 will be described.

As shown in FIG. 1, the mobile station monitoring systems SY1 and SY2 are connected to each other via a wired LAN (for example, Ethernet (registered trademark) (TM)). The mobile station monitoring information is provided from the external mobile station monitoring system SY2 to the mobile station monitoring system SY1 via the wired LAN.
In the mobile station monitoring system SY1, each base station 1, 2, 3 is provided with a data communication device (not shown) for performing wireless communication with each mobile station 5, and the position is known in advance. Position correction data from a GPS reference station (not shown) is sent to the data communication devices of the base stations 1, 2, and 3. The position correction data is transmitted from the base stations 1, 2, and 3 to each mobile station 5 under monitoring via wireless communication (for example, wireless communication using a polling method).

On the other hand, each mobile station 5 includes a data communication device (not shown) that performs wireless communication with each of the base stations 1, 2, and 3, and a GPS receiver (not shown) that performs GPS positioning. DGPS positioning is performed by correcting the position information received by the GPS receiver using the position correction data transmitted from the base stations (supervising base stations) 1, 2 and 3 that monitor each mobile station. The corrected coordinate data (position information) is transmitted to the responsible base stations 1, 2, and 3. The base stations 1, 2, 3 that have received this position information create a position information database of each mobile station under monitoring based on the received position information, or directly transmit these position information to the control station 4. Then, the control station 4 creates a position information database for each mobile station 5. Each base station 1, 2, 3 or control station 4 updates these location databases as needed, and the latest mobile station information (location information, etc.) of each mobile station 5 is stored.
Note that wireless communication may be performed using a single channel or a plurality of channels. In addition, the control station 4 and the like are provided with a database for managing information on each mobile station 5 and the like, and a control device for controlling these communications.

In the mobile station monitoring system SY1, each mobile station to be monitored under the same system is pre-assigned unique identification information (ID, etc.) within the system, and the mobile station monitoring is related to this identification information. Mobile station information of each mobile station is recorded and stored in a database provided in a control device (for example, installed in a control station) in the system.
Here, the mobile station information recorded and stored in the database is, for example, mobile station position information including position (latitude, longitude, etc.) information and positioning time information of each mobile station, and is necessary for specifying each mobile station. Mobile station fixed information (information fixed to each mobile station, for example, the group to which the mobile station belongs, the type of mobile station, the radio address for wireless data link, etc.) and the mobile station on the electronic map Mobile station display information (vehicle number, name, vehicle type name, display icon, etc.) necessary for display. A database that records such information can be searched by a unique ID (identification information) assigned to each mobile station in the system.

  Of the mobile station location information, the mobile station fixed information and the mobile station display information need only be recorded and saved once (can be freely changed when necessary), but the mobile station location information is stored in each mobile station. It is updated sequentially as it moves. That is, each mobile station performs DGPS positioning at predetermined time intervals, and transmits the obtained position information to a base station (or control station). Each base station (or control station) records and stores the received position information in a database in association with the information identification ID. Note that these pieces of position information are sorted in descending order according to the positioning time in the database (the information is recorded so that the latest data is at the top).

Thus, the mobile station information recorded and stored in each database in association with a unique ID can be searched by the information identification ID. Therefore, each mobile station information is searched using this ID, and the mobile station information of all mobile stations can be obtained based on the searched data.
In this embodiment, a database is provided for each piece of information (position information, fixed information, display information), and each mobile station corresponds to an ID assigned to each mobile station in each database. It is assumed that the mobile station information is recorded and saved. However, you may provide the database which recorded and saved all the mobile station information collectively. Also in this case, the mobile station information of each mobile station is recorded and stored corresponding to the identification information assigned to the mobile station.

  FIG. 2 shows the mobile station information recorded in the database used in the mobile station monitoring system of this embodiment, in particular, the data structure of the mobile station location information and the mobile station information recorded in the database. Location information, etc. on a display device provided in any terminal (a terminal provided in a base station, a control station, etc., a terminal provided in each mobile station, etc.) that desires to acquire location information of a specific mobile station It is the figure which showed the process until it displays.

  As shown in FIG. 2, the database used in the mobile station monitoring system of the present embodiment includes a location information database 6 that records and stores mobile station location information of each mobile station in association with its identification information, From the fixed information database 7 that records and stores the mobile station fixed information of each mobile station in association with the identification information, and the display information database 8 that records and stores the mobile station display information of each mobile station in association with the identification information. Become. For example, when the mobile station is a vehicle, the fixed information recorded in the fixed information database 7 includes a group to which the vehicle belongs, a type of the vehicle, a radio address of the vehicle for performing a wireless data link, and the like. It is. Further, the display information recorded in the display information database 8 includes a vehicle number, a name, a vehicle type name, a display icon, and the like for displaying the vehicle on the electronic map. Once these fixed information and display information are stored in the database, they are recorded in a fixed manner unless they need to be changed.

  On the other hand, the position information database 6 records the position (latitude, longitude, etc.) of the mobile station (vehicle) and positioning time information (position information). The information is constantly changing, and therefore, the latest position information is sequentially written from each mobile station in the database at predetermined time intervals. In this embodiment, the position information recorded in the position information database 6 is sorted in descending order according to the positioning time. When the memory capacity in the database is exceeded, the position information is erased in order of old positioning time.

  FIG. 2 further shows the data structure of the position information in the position information database 6. As shown in FIG. 2, the position information transmitted from each mobile station includes an ID (assigned) unique to the mobile station, a positioning time t when the DGPS positioning is performed, and positioning coordinates. (Latitude), positioning coordinates (longitude) and other information are recorded in the database 6 in a configuration arranged in this order.

Here, mobile station information recorded and stored in the databases 6, 7, and 8 is a certain terminal (a terminal that displays the position of a mobile station, for example, a terminal installed in a control station or the like, and is not particularly limited). When it is desired to display the position of each mobile station based on the mobile station, the terminal obtains the latest position data of the mobile station position information sorted at time t from the position information database 6, and each mobile station in those data Using the unique ID, the mobile station fixed information and the mobile station display information of the mobile station are acquired from the database, and the position of the mobile station is displayed together with the display information on the electronic map created from the electronic map data provided in the terminal. indicate.
From the above, in order to incorporate the information (mobile station information) necessary for monitoring the external mobile station 11 monitored by the external mobile station monitoring system SY2 into the mobile station monitoring system SY1, the external mobile station monitoring system From SY2, it is necessary to have identifiable external unique ID (identification information), location information, time of location information, and mobile station identification name information.

  As described above, a unique ID in the mobile station monitoring system SY1 is assigned in advance to the mobile station 5 registered in advance. Therefore, these mobile stations 5 can be displayed on the electronic map using their position information. However, it is necessary to newly register and register identification information for the unregistered mobile station, that is, the external mobile station 11 monitored by the external mobile station monitoring system SY2. This is because the external mobile station 11 is assigned unique identification information for monitoring in the external mobile station monitoring system SY2, but the identification information is information that cannot be identified by the mobile station monitoring system SY1. This is because it is necessary to convert the information into information that can be identified by the mobile station monitoring system SY1.

  Here, the mobile station monitoring information sent from the external mobile station monitoring system SY2 via the LAN includes an external unique ID. As described above, this external unique ID is identification information that has no meaning in the mobile station monitoring system SY1, and an external mobile station corresponding to the identification information cannot be monitored as it is. Therefore, the monitoring cooperation device 13 has a function of allocating a free (unused) ID (identification information) of the mobile station monitoring system SY1 that enables monitoring in the mobile station monitoring system SY1 to this external unique ID. I have.

  For example, when the mobile station information of ID: 1 is provided from the external mobile station monitoring system SY2 via the LAN, the mobile station monitoring system SY1 sends the external mobile station 11 of ID: 1 to the external mobile station 11 via the external cooperation device 13. On the other hand, identification information ID: A that can be managed by the mobile station monitoring system SY1 is assigned, and the external mobile station 11 is registered. Once this registration is performed, when the mobile station information of ID: 1 is obtained from the external mobile station monitoring system SY2, the external mobile station 11 is monitored as mobile station information of ID: A.

  At this time, since the IDs that can be allocated in the mobile station monitoring system SY1 are limited, the ID assigned in the mobile station monitoring system is released when there is no data with the same ID from the external mobile station for a certain period of time. The external mobile station monitoring system SY2 regularly provides monitoring information of the external mobile station 11 monitored at that time, or regularly confirms the existence of these data. By detecting the presence or absence of information, the release of identification information (ID) can be determined.

  In addition, the mobile station 5 that is the monitoring target of the mobile station monitoring system SY1 is equipped with a device capable of GPS positioning. Therefore, GPS positioning coordinates (WGS84) are adopted as mobile station position information in this system. However, in the external mobile station monitoring system SY2, the mobile station position to be monitored is not always based on GPS positioning. Therefore, in the present embodiment, a function for converting the mobile station position information by the external mobile station 11 to the position information of the mobile station monitoring system SY1 by GPS positioning is provided in the monitoring cooperation device 13 by incorporating an appropriate conversion algorithm. Built in the linkage device 13.

  Furthermore, since the mobile station monitoring systems SY1 and SY2 operate independently of each other, the system times used by them are asynchronous with each other. Therefore, the monitoring cooperation apparatus 1 of this embodiment matches the time information included in the position information of the external mobile station 11 monitored by the external mobile station monitoring system SY2 with the time information used by the mobile station monitoring system SY1. The synchronization process is also performed.

FIG. 3 is a flowchart showing a specific operation of the monitoring cooperation apparatus 13 described above.
In the present embodiment, serial communication or LAN such as 100Base · T is used for capturing information from the external mobile station monitoring system SY2, etc., but is not necessarily limited to these communication methods. Information may be taken in by wireless communication. Also, external data (mobile station monitoring information) from the external mobile station monitoring system SY2 etc. includes some information identification ID (in the external system) indicating that the location data, the mobile station name, and the location data are the same mobile station. This external data is received via the monitoring cooperation device 13 (S1).

  Next, it is checked whether or not the information identification ID in the received external data is an information identification ID already registered in the mobile station monitoring system SY1 (S2). If already registered, the position information of the external mobile station is written in the position information database 6 and the last writing time is updated (S8).

On the other hand, if the information identification ID of the received external data is not registered, a unique information identification ID that can be used in the mobile station monitoring system SY1 is searched (S3), and these information identification IDs are empty. Whether there is an unused information identification ID (S4). If there is no available space, the external mobile station monitoring system SY2 is notified to that effect (S5), and this process is terminated. On the other hand, if there is a vacancy, the unused information identification ID is assigned to the external data (external mobile station 11), and the mobile station fixed information and the mobile station display information of the external mobile station 11 are assigned using the assigned information identification ID. Then, it is registered in the fixed information database 7 and the display information database 8 (S6). Further, the addition of a new mobile station is notified in the mobile monitoring system SY1 (S7), the mobile station location information is written into the location information database 6 using the assigned information identification ID, and the final write time is set in advance Save to the storage area (S8).
FIG. 2 shows a state in which the last write time of an external mobile station assigned information identification ID1 and ID2 is stored.

  Here, when it is determined that there is no write update even after a certain fixed time has passed from the last write time of each external mobile station 11 updated in step S8, the information identification ID assigned to the external mobile station 11 is Open to other external mobile stations.

FIG. 4 is a flowchart showing a loop process (write monitoring loop) for monitoring the final write time for the external mobile station 11 to which the information identification ID is assigned.
From FIG. 4, the write monitoring loop is activated, and it is first checked whether there is an ID assigned to the external mobile station at regular intervals (S9). Here, for example, if it is determined that n IDs are allocated to the external mobile station 11, that is, if it is determined that there are ID1 to IDn (n is an integer of 1 or more), the following final write: The time is checked for the number of assigned IDs (n), in other words, for all n IDs (write final time check loop). For example, for each assigned ID (ID1 to IDn), first, for example, ID1 is selected, and it is determined whether or not the last write time for ID1 has exceeded a predetermined time (S10).
Here, if the last write time for ID1 exceeds a predetermined time, the ID1 is released and made available to other external mobile stations 11 (S11). Further, the final write time is checked for the next ID (for example, ID2).

On the other hand, if the final write time for ID1 has not passed in step S10, the final write time check loop is repeated for the next ID (ID2).
The final write time check loop is repeated for the number of IDs assigned (n times).

When this write final time check loop is completed, it is determined whether or not to end the write monitoring loop. If the loop processing is to be continued, the processing is repeated from step S9 of the write monitoring loop. On the other hand, when it is determined that the write monitoring loop is finished, the loop processing is finished. Note that whether or not to end the write monitoring loop may be determined manually or automatically by an administrator (for example, power off due to system suspension).
As the mobile station monitoring system SY1 to which the above-described embodiment is applied, the wireless mobile station monitoring system shown in FIG. 1 (the mobile stations disclosed in Japanese Patent Laid-Open Nos. 11-355859 and 2002-152806 are disclosed). Monitoring system), for example, a simpler monitoring system composed of one base station and a plurality of mobile stations, a plurality of mobile stations, a plurality of base stations, and these are managed. It can be applied to more complex monitoring network systems including control stations (control stations) and main control stations, and more complex multi-network systems including a plurality of such monitoring network systems. Needless to say.

In the mobile station monitoring system of the above-described embodiment, the polling method is adopted for the wireless communication between the base station and the mobile station, but the method is not necessarily limited to the wireless communication of the polling method. Further, if wireless communication between the base station and the mobile station is performed by a spread spectrum (SS) method, noise and the like are reduced, and more accurate position information can be acquired.
In this embodiment, the monitoring operation in the two mobile station monitoring systems is linked. However, the present embodiment is also applied to the monitoring operation in the three or more mobile station monitoring systems. Needless to say.

It is a conceptual diagram of the mobile station monitoring system to which this embodiment is applied. Each mobile station uses the mobile station information recorded in the database used in the mobile station monitoring system of the present embodiment, in particular, the data structure of the mobile station location information and the mobile station information recorded in the database. It is the figure which showed the process until it displays position information etc. on the display apparatus with which it was equipped. It is the flowchart which showed the specific operation | movement of the external cooperation apparatus with which the monitoring network system of this embodiment was equipped. It is the flowchart which showed the loop process (write monitoring loop) which monitors the last write time with respect to the external mobile station to which information identification ID was allocated.

Explanation of symbols

1, 2, 3 Base station 4 Control station 5 Mobile station 6 Location information database 7 Fixed information database 8 Display information database 9 Display device 10 Electronic map data 11 Aircraft 12 Radar device 13 External linkage device 14 Control station

Claims (13)

It has a plurality of mobile stations and a control station that monitors the plurality of mobile stations via wireless communication with the plurality of mobile stations, and can be identified in advance as the plurality of mobile stations to be monitored For a mobile station monitoring system having mobile station information record holding means for recording and holding mobile station monitoring information necessary for monitoring the plurality of mobile stations in association with the identification information. A monitoring collaboration device,
Necessary for monitoring the external mobile station monitored by the other mobile station monitoring system from the other mobile station monitoring system performing the monitoring operation independently of the mobile station monitoring system in the mobile station monitoring system When the mobile station monitoring information is provided, the external mobile station is searched by searching for unused identification information that can be used in the mobile station monitoring system and assigning the unused identification information to the external mobile station. Identification information allocating means for registering the mobile station monitoring information necessary for monitoring the registered external mobile station in association with the identification information allocated to the external mobile station. A monitoring cooperation apparatus comprising: an external mobile station monitoring information record holding unit that records and holds the mobile station information record holding unit.   The identification information assigning means checks whether or not the external mobile station corresponding to the mobile station monitoring information provided from the other mobile station monitoring system has already been registered. The mobile station monitoring information is recorded in the mobile station information record in association with the identification information already assigned to the external mobile station by the external mobile station monitoring information record holding means without searching for unused identification information. The monitoring cooperation apparatus according to claim 1, wherein the holding unit sequentially records and holds the information.   The mobile station monitoring information includes position information indicating the position of each mobile station, fixed information for specifying each mobile station, and display information for displaying each mobile station on a display device. The monitoring cooperation apparatus according to claim 1, wherein   4. The monitoring cooperation apparatus according to claim 3, wherein position information of the plurality of mobile stations monitored in the mobile station monitoring system is obtained based on GPS positioning.   When the position information included in the mobile station monitoring information provided from the other mobile station monitoring system is not based on GPS positioning, a conversion algorithm for converting coordinates into position information based on GPS positioning is further incorporated. The monitoring cooperation apparatus according to claim 4, wherein the monitoring cooperation apparatus is characterized.   The monitoring cooperation apparatus according to claim 3, wherein the position information is information updated every predetermined time, and includes information for specifying a position of each mobile station and information representing a positioning time.   The external mobile station monitoring information record holding means determines whether or not a predetermined time has elapsed from the last update time when the location information of the external mobile station has been updated, and when determining that the predetermined time has elapsed, 7. The monitoring cooperation apparatus according to claim 6, further comprising means for releasing the identification information assigned to the external mobile station to another external mobile station.   The mobile station information record holding means comprises a position information database that records and holds the position information, a fixed information database that records and holds the fixed information, and a display information database that records and holds the display information. The monitoring cooperation apparatus according to claim 3.   Based on the identification information assigned to each mobile station of the plurality of mobile stations and the external mobile station, the location information database, the fixed information database, and the display information database are accessed, 9. The monitoring cooperation apparatus according to claim 8, further comprising a display device that acquires the position information of the mobile station, the fixed information, and the display information and displays the position information together with electronic map data on a display screen. .   The position information further includes time information. If the time information used by the other mobile station monitoring system is different from the time information used by the mobile station monitoring system, the position information is used by the mobile station monitoring system. The monitoring cooperation apparatus according to claim 3, further comprising means for performing a synchronization process on the time information used by the other mobile station monitoring system so as to match the time information.   The monitoring cooperation apparatus according to claim 1, wherein provision of the mobile station monitoring information between the mobile station monitoring system and the other mobile station monitoring system is performed via a LAN. It has a plurality of mobile stations and a control station that monitors the plurality of mobile stations via wireless communication with the plurality of mobile stations, and can be identified in advance as the plurality of mobile stations to be monitored For a mobile station monitoring system having mobile station information record holding means for recording and holding mobile station monitoring information necessary for monitoring the plurality of mobile stations in association with the identification information. Monitoring linkage method,
Necessary for monitoring the external mobile station monitored by the other mobile station monitoring system from the other mobile station monitoring system performing the monitoring operation independently of the mobile station monitoring system in the mobile station monitoring system When the mobile station monitoring information is provided, the external mobile station is searched by searching for unused identification information that can be used in the mobile station monitoring system and assigning the unused identification information to the external mobile station. An identification information assignment step for registering the mobile station monitoring information necessary for monitoring the registered external mobile station in association with the identification information assigned to the external mobile station. A monitoring cooperative method comprising: an external mobile station monitoring information record holding step for recording and holding the mobile station information record holding means.   The identification information assignment step checks whether or not the external mobile station corresponding to the mobile station monitoring information provided from the other mobile station monitoring system has already been registered. Without searching for unused identification information, the external mobile station monitoring information record holding step associates the mobile station monitoring information with the identification information already assigned to the external mobile station. 13. The monitoring cooperation method according to claim 12, wherein the holding means sequentially records and holds the information.

Images