JP2005227922A - Interprocess information sharing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize an interprocess information sharing system capable of making information redundant and sharing information without using a server. <P>SOLUTION: The interprocess information sharing system shares information among processes operated by devices existing on a network. The interprocess information sharing system is provided with a plurality of computers which are devices operating processes and having information sharing boards exclusive for processes, and keeps the information in a shared state by other devices by writing the shared information in which the processes themselves keep the information sharing boards, and synchronizes the written information so that the information sharing boards mutually cooperate each other via the network. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an inter-process information sharing system for sharing information between processes operating on devices existing on a network, and more particularly to an embedded device having a limited hardware resource without using a server and capable of information redundancy. It relates to an inter-process information sharing system that can be used.

  Prior art documents related to an inter-process information sharing system for sharing information between processes operating on devices existing on a network include the following.

JP 05-035496 A JP 09-114722 A JP 10-333970 A JP 2004-005092 A

  FIG. 12 is an explanatory diagram showing an example of an inter-process information sharing system for sharing information between conventional processes. In FIG. 12, reference numeral 1 denotes a computer which is a device on which a process operates.

  Here, the operation of the conventional example shown in FIG. 12 will be described. In the computer 1, three processes indicated by “PR01”, “PR02” and “PR03” in FIG.

  Each process indicated by “PR01”, “PR02”, and “PR03” in FIG. 12 handles the storage means indicated by “ME01” in FIG. 12 as a shared memory, and a process processes information such as data in FIG. Data such as data is shared between the processes by writing to ME01 "and reading information such as the written data by other processes.

  FIG. 13 is an explanatory diagram showing another example of an inter-process information sharing system for sharing information between conventional processes. In FIG. 13, 2, 3 and 4 are computers that are devices on which processes operate, 5 is a server having storage means shared among the computers, and 100 is a general-purpose network such as the Internet or a LAN (Local Area Network). .

  The computers 2, 3 and 4 are connected to the network 100, and the server 5 is also connected to the network 100.

  Here, the operation of the conventional example shown in FIG. 13 will be described. In the computers 2, 3 and 4, processes as indicated by “PR11”, “PR12” and “PR13” in FIG. 13 are operating, respectively, and “PR11”, “PR12” and “PR13” in FIG. The process shares a storage area indicated by “BB11” in FIG.

  As in FIG. 12, among the processes indicated by “PR11”, “PR12” and “PR13” in FIG. 13, one process writes information such as data into “BB11” in FIG. By reading the information such as the written data, the information such as the data is shared between the processes.

  14 is an intermediary software used when exchanging messages such as data and processing requests between processes, such as ORB (Object Request Broker: DCOM (Distributed Component Object Model)). It is explanatory drawing which shows another example of the inter-process information sharing system which shares information between the conventional processes using ORB.).

  In FIG. 14, 6 and 7 are computers that are devices on which client processes operate, 8 is a server on which server processes operate, and 101 is a general-purpose network such as the Internet or a LAN.

  The computers 6 and 7 are connected to the network 101, and the server 8 is also connected to the network 101.

  Here, the operation of the conventional example shown in FIG. 14 will be described. In the computers 6 and 7, client processes as indicated by “CP21” and “CP22” in FIG. 14 operate, respectively. Similarly, in the server 8, a server process as indicated by “SP21” in FIG. 14 operates. doing.

  Then, the client process indicated by “CP21” and “CP22” in FIG. 14 performs the ORB and data etc. on the server 8 side indicated by “OB23” in FIG. 14 via the ORB indicated by “OB21” and “OB22” in FIG. The information such as the data is shared by passing the management of the information such as the data to the server process indicated by “SP21” in FIG.

  However, in the first conventional example as shown in FIG. 12, since the shared memory used in a single device (one computer 1) is based on the memory address, an address table is used when information is added or deleted. There was a problem that a lot of man-hours would be required because of the need to rebuild.

  In addition, in the first conventional example as shown in FIG. 12, when the simultaneous access from a plurality of processes is not considered, the contents in the shared memory may be destroyed by the simultaneous access from the plurality of processes. There was a problem that said.

  Furthermore, in the first conventional example as shown in FIG. 12, when sharing information among a plurality of devices, it is necessary to prepare a device such as a server, but the hardware resources such as an embedded device are not used. There is also a problem that a limited device has insufficient hardware resources to operate as a server and can only be used by a client.

  Further, in the second conventional example as shown in FIG. 13, the interface to the server 5 is determined, but in the third conventional example as shown in FIG. 14, the interface must be defined for each system. There is a problem that it is complicated compared to the first conventional example shown in FIG.

Finally, in the second and third conventional examples as shown in FIGS. 13 and 14, when the server 5 and the server 8 are down due to a failure, all information such as shared data is lost. There was a problem that said.
Therefore, the problem to be solved by the present invention is to realize an inter-process information sharing system capable of making information redundant and capable of sharing information without using a server.

In order to achieve such a problem, the invention according to claim 1 of the present invention is:
In an inter-process information sharing system that shares information between processes operating on devices existing on the network,
A plurality of computers, which are devices that operate the process and have an information sharing board dedicated to the process,
The process writes the information shared by itself to the information sharing board so that the information is shared with other devices, and the information sharing boards write in cooperation with each other via the network. By synchronizing the information, the information can be made redundant and the information can be shared without using a server.

The invention according to claim 2
In the inter-process information sharing system according to claim 1,
A computer that is a device that has a process-operating information sharing board dedicated to the process, a server that is a device having a proxy information sharing board, and a device that operates the process;
A process operating on the device exchanges information shared with the proxy information sharing board provided in the server, and the information sharing board and the proxy information sharing board cooperate with each other via the network. By synchronizing the information written in this way, it is possible to use the information sharing board even for a device with relatively few hardware resources.

The invention described in claim 3
In the inter-process information sharing system according to claim 2,
There are a plurality of devices on which the process operates, and the processes operating on these devices exchange information shared with the proxy information sharing board provided in the server, and the information sharing board and the The proxy information sharing board synchronizes the information written in cooperation with each other via the network, so that it is possible to use the information sharing board even if the device has relatively few hardware resources. .

The invention according to claim 4
In the inter-process information sharing system according to claim 1,
A computer that is a device that operates the process and has an information sharing board dedicated to the process, a server that is a device that operates a proxy server, and a device that operates the process and has an information sharing board dedicated to the process,
A process operating on the device exchanges information shared with the information sharing board of the device, and is stored in the information sharing board of the device using the proxy server provided in the server. By synchronizing the existing information with the information sharing board of the computer and blocking the information from the information sharing board of the computer, it is possible to reduce the amount of communication associated with the synchronization processing.

The invention according to claim 5
In the inter-process information sharing system according to claim 1,
A plurality of devices having a process-operating information sharing board, a first server that is a device having a proxy information sharing board, and a statistical processing application operating and sharing information dedicated to the statistical processing application A second server, which is a device having a board, and a plurality of computers, which are devices that operate the process and have an information sharing board dedicated to the process,
A process operating on the device exchanges information shared with the proxy information sharing board provided in the server, and the statistical processing application shares with the information sharing board Writing the information causes the information to be shared with other devices, and the information sharing board and the proxy information sharing board synchronize the information written in cooperation with each other via the network. Therefore, all information can be obtained from a dedicated information sharing board, so the monitoring system can be easily configured simply by adding or deleting sensors or various processing applications that have an information sharing board or proxy information sharing board. It becomes possible to change.

The invention described in claim 6
In the inter-process information sharing system according to any one of claims 1 to 5,
The information sharing board or the proxy information sharing board is
Storage means for storing the information to be shared, information processing means for performing processing of writing, reading, and deleting the information to be shared, event processing means for performing notification processing for an event that has occurred, By comprising information synchronization means for performing synchronization processing with other information sharing boards, information can be made redundant and information can be shared without using a server.

The invention described in claim 7
In the inter-process information sharing system according to claim 6,
The information processing means is
When it is determined that the information to be shared has been written, the information to be shared that is paired with the information to be shared and is written together with a key that is information used for handling the information to be shared is stored in the storage unit And, when it is determined that the information to be shared has been read out, the information to be shared stored in the storage unit together with the designated key is read out and delivered to the process or the statistical processing application, and the information to be shared When it is determined that there has been deletion of information, the information to be shared can be made redundant by deleting the shared information stored in the storage means together with the designated key, and the information can be shared without using a server. become.

The invention described in claim 8
In the inter-process information sharing system according to claim 6,
The event processing means is
When it is determined that an event has been registered, by registering an event registration information key together with the event registration process or statistical processing application information, the information can be made redundant and information can be shared without using a server. Is possible.

The invention according to claim 9
In the inter-process information sharing system according to claim 6,
The event processing means is
When it is determined that the information to be shared has been written or the information to be shared has been deleted, and the key corresponding to the information to be shared has been registered, the registered process information By identifying the process or statistical processing application that registered the event based on the event and notifying the process or statistical processing application of the occurrence of the event, the information can be made redundant and the information can be shared without using a server. .

The invention according to claim 10 is:
In the inter-process information sharing system according to claim 6,
The information processing means is
By setting an expiration date for the information to be stored and automatically deleting the information exceeding the expiration date from the storage unit, it is possible to reduce the consumption of the storage capacity of the information sharing board.

The invention according to claim 11
In the inter-process information sharing system according to claim 6,
The information processing means is
When the information to be stored exceeds the storage capacity of the storage means, it is possible to prevent destruction of shared information by sequentially deleting the information with the oldest writing date and time.

The invention according to claim 12
In the inter-process information sharing system according to any one of claims 1 to 11,
By grouping information sharing boards or proxy information sharing boards that synchronize shared information with each other and performing synchronization of shared information between the groups, it is possible to reduce the amount of communication associated with the synchronization processing.

The invention according to claim 13
In the inter-process information sharing system according to claim 12,
By grouping information sharing boards or proxy information sharing boards having a high degree of sharing of the shared information based on the statistics of the used shared information, it is possible to reduce the amount of communication associated with the synchronization processing.

The present invention has the following effects.
According to the first, sixth, seventh, eighth, and ninth aspects of the present invention, a process that operates on a computer writes another information to the other computer by writing shared information such as data that it has to the information sharing board. The information sharing board, while the information sharing board synchronizes the information written in cooperation with each other, thereby functioning as one virtual information sharing board and sharing actual information at a plurality of locations. By making the information shared by the board redundant, the information can be made redundant and the information can be shared without using a server.

  According to the second and third aspects of the invention, a process operating on a device exchanges information shared with a proxy information sharing board provided in another device (server) and shares information. By synchronizing the information written by the board and the proxy information sharing board in cooperation with each other, it is possible to use the information sharing board even if the device has relatively few hardware resources.

  According to the invention of claim 4, a process operating on a device exchanges information shared with a dedicated information sharing board and uses a proxy server provided on another device (server). By synchronizing the information stored on the information sharing board of the dedicated device with the information sharing board of the computer and blocking the information from other information sharing boards, it is possible to reduce the amount of communication associated with the synchronization process Become.

  Further, according to the invention of claim 5, by applying to a monitoring system, a process operating on a computer can be measured by a device and acquire information only by accessing a dedicated information sharing board, and Since the results processed by the statistical processing application can be acquired together, monitoring is easily performed simply by adding or deleting sensors or various processing applications that have an information sharing board or proxy information sharing board. It becomes possible to change the system configuration.

  According to the invention of claim 10, the expiration date is set for the information stored in the information processing means, and the information that has exceeded the expiration date is automatically deleted from the storage means, thereby storing the information sharing board. Capacity consumption can be reduced.

  According to the invention of claim 11, when the information to be stored exceeds the storage capacity of the storage means, the information of the information to be shared is deleted by sequentially deleting the information with the oldest writing date and time. It becomes possible to prevent destruction.

  According to the invention of claim 12 and claim 13, the information sharing board or the proxy information sharing board that synchronizes the shared information with each other is grouped and the shared information is synchronized between the groups, so that the synchronization processing is performed. It is possible to reduce the amount of communication involved.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an inter-process information sharing system according to an embodiment of the present invention. In FIG. 1, reference numerals 9, 10, 11 and 12 denote computers each having a process operation and an information sharing board dedicated to the process. Reference numeral 102 denotes a general-purpose network such as the Internet or a LAN. The computers 9, 10, 11 and 12 are connected to the network 102, respectively.

  Here, the operation of the embodiment shown in FIG. 1 will be described with reference to FIG. FIG. 2 is an explanatory diagram showing the relationship between the processes operating on each computer and the information sharing board.

  2, 9, 10, 11 and 12 are assigned the same reference numerals as in FIG. 1, and 13, 14, 15 and 16 are dedicated information sharing boards provided in the computers 9-12.

  A process operating on the computer 9 indicated by “PR31” in FIG. 2 writes the information to the other computers 10 to 12 by writing shared information such as data held by itself to the dedicated information sharing board 13. Set to shared state.

  Similarly, the processes operating on the computers 10, 11 and 12 indicated by “PR32”, “PR33” and “PR34” in FIG. 2 are the data they have for the dedicated information sharing boards 14, 15 and 16, respectively. By writing the information to be shared, etc., the information is shared with other computers.

  On the other hand, the information sharing boards 13, 14, 15 and 16 function as a virtual one information sharing board by synchronizing the information written in cooperation with each other, and at the same time, four actual information sharing boards By making the information shared by 13 to 16 redundant, the reliability of the system is improved.

  The operation of the embodiment shown in FIG. 1 will be described in more detail with reference to FIGS. 3, 4, 5, and 6. FIG. 3 is a block diagram illustrating the details of the information sharing board, FIG. 4 is a flowchart illustrating the operation of the information sharing board (information processing means), and FIGS. 5 and 6 are operations of the information sharing board (event processing means). FIG.

  In FIG. 3, 17 is an information processing means for performing processing such as writing, reading, and deleting shared information, 18 is an event processing means for performing notification processing for an event that has occurred, and 19 is a synchronization process with other information sharing boards. Reference numeral 20 denotes a storage means such as a hard disk or RAM (Random Access Memory) in which shared information is stored. Reference numerals 17, 18, 19, and 20 constitute an information sharing board 200.

  The information processing means 17, the event processing means 18 and the information synchronization means 19 are respectively connected to the storage means 20, and the information processing means 17, the event processing means 18 and the information synchronization means 19 are computers provided with an information sharing board 200. And other information sharing boards are connected to each other via a network 102 and a process operating in the network.

  First, regarding processing such as writing, reading, and deleting of information, the information processing means 17 of the information sharing board 200 determines whether or not shared information has been written from the process in “S001” in FIG. If it is determined that shared information has been written, the information processing means 17 of the information sharing board 200 stores the shared information written together with the key in the storage means 20 in “S002” in FIG. .

  Here, the above-mentioned key is information that is paired with shared information and is used when handling the shared information, and is hereinafter simply referred to as a key.

  On the other hand, if it is determined that there is no writing of information to be shared in “S001” in FIG. 4, the information processing means 17 of the information sharing board 200 in “S003” in FIG. It is determined whether or not the information has been read. If it is determined that the information to be shared has been read, the information processing means 17 of the information sharing board 200 stores the specified key together with the designated key in “S004” in FIG. The shared information stored in the means 20 is read out and transferred to the aforementioned process.

  On the other hand, if it is determined that the information to be shared has not been read out in “S003” in FIG. 4, the information processing means 17 of the information sharing board 200 in “S005” in FIG. It is determined whether or not there is a deletion. If it is determined that the information to be shared has been deleted, the information processing means 17 of the information sharing board 200 stores the specified key together with the designated key in “S006” in FIG. The shared information stored in the means 20 is deleted.

  Secondly, regarding the notification process for the event that has occurred, the event processing means 18 of the information sharing board 200 determines whether or not an event has been registered from the process in “S101” in FIG. If it is determined that an event has been registered in “S101” in FIG. 5, the event processing means 18 of the information sharing board 200 registers the event together with the information of the process that registered the event in “S102” in FIG. Register the information key.

  Then, in “S201” in FIG. 6, the event processing means 18 of the information sharing board 200 determines whether or not shared information has been written, and if it is determined that shared information has been written, FIG. The process proceeds to the middle “S203” step.

  If it is determined that there is no writing of information to be shared in “S201” in FIG. 6, the event processing means 18 of the information sharing board 200 determines whether or not the information to be shared has been deleted in “S202” in FIG. If it is determined that the shared information has not been deleted, the process returns to step S201 in FIG.

  If it is determined that the information to be shared has been deleted in “S202” in FIG. 6, the event processing means 18 of the information sharing board 200 registers the key corresponding to the information to be shared in “S203” in FIG. If it is determined that the key corresponding to the shared information is not registered, the process returns to the step “S201” in FIG.

  If it is determined that the key corresponding to the information to be shared has been registered in “S203” in FIG. 6, the event processing means 18 of the information sharing board 200 in “S204” in FIG. The process that registered the event is identified based on the information, and the occurrence of the event is notified to the process.

  Finally, regarding the synchronization process with other information sharing boards, the information sharing board 200 shares all the information stored in the storage means 20 by synchronizing with other information sharing boards. .

  As a result, a process that operates on a computer writes information to the information sharing board, such as data that it owns, to share the information with other computers, while the information sharing boards By synchronizing the information written in cooperation, it functions as a virtual information sharing board and makes information shared by multiple actual information sharing boards redundant, thereby making the information redundant It is possible to share information without using a server.

  FIG. 7 is a block diagram showing another embodiment of the inter-process information sharing system according to the present invention in the case where the information sharing board is used with a device with relatively few hardware resources such as a mobile phone.

  In FIG. 7, reference numeral 21 denotes a computer that is a device that operates a process and has an information sharing board dedicated to the process, 22 is a server that is a device having a proxy information sharing board, and 23 is an information sharing dedicated to the process that operates. A cellular phone which is a device having no board, 24 is a dedicated information sharing board provided in the computer 21, 25 is a proxy information sharing board provided in the server 22, and 103 is a general-purpose network such as the Internet or a LAN. is there.

  The computer 21 is connected to the network 103, and the server 22 is also connected to the network 103. The mobile phone 23 is connected to the server 22 by a wireless line, a wired line, or the like.

  Here, the operation of the embodiment shown in FIG. 7 will be described. The lower part of FIG. 7 shows the relationship between the process operating on the computer 21 or the mobile phone 23, the information sharing board 24 and the proxy information sharing board 25 in the server 22.

  The process operating on the computer 21 indicated by “PR41” in FIG. 7 writes the shared information such as the data held by itself to the dedicated information sharing board 24 to make the information shared with the mobile phone 23. To do.

  Similarly, the process operating on the cellular phone 23 indicated by “PR 42” in FIG. 7 is performed by writing information to be shared such as data owned by the computer 21 to the proxy information sharing board 25 provided in the server 22. The information is shared.

  On the other hand, the information sharing board 24 and the proxy information sharing board 25 function as one virtual information sharing board by synchronizing the information written in cooperation with each other, and at the same time, the actual information sharing board 24 and the proxy information sharing board 24 By making the information shared by the information sharing board 25 redundant, the reliability of the system is improved.

  As a result, the process operating on the mobile phone 23 exchanges information shared with the proxy information sharing board 25 provided in another device (server 22), and the information sharing board 24 and the proxy information sharing board 25. By synchronizing the written information in cooperation with each other, it is possible to use the information sharing board even for the mobile phone 23 which is a device with relatively few hardware resources.

  Further, FIG. 8 illustrates a device that is assumed not to use shared information such as sensors, in other words, the necessity of performing information synchronization processing between a dedicated information sharing board and another information sharing board. It is a configuration block diagram showing another embodiment of the inter-process information sharing system according to the present invention when the information sharing board is used in a device that is not present.

  In FIG. 8, 26 is a computer that is a device that operates a process and has an information sharing board dedicated to the process, 27 is a server that is a device that operates a proxy server, and 28 is an information sharing board dedicated to the process that operates and processes. Sensors 29 and 31 are dedicated information sharing boards provided in the computer 26 and the sensor 28, 30 is a proxy server operating on the server 27, and 104 is a general-purpose network such as the Internet or a LAN.

  The computer 26 is connected to the network 104, and the server 27 is also connected to the network 104. The sensor 28 is connected to the server 27.

  Here, the operation of the embodiment shown in FIG. 8 will be described. The lower part of FIG. 8 shows the relationship between the computer 26 or the process operating on the sensor 28, the information sharing boards 29 and 31, and the proxy server 30 operating on the server 27.

  The process operating on the computer 26 indicated by “PR51” in FIG. 8 writes the shared information such as its own data to the dedicated information sharing board 29 to share the information with other devices. To do.

  Similarly, the process operated by the sensor 28 indicated by “PR52” in FIG. 8 writes the shared information such as its own data to the dedicated information sharing board 31 so that the information is sent to the computer 26. Set to shared state.

  On the other hand, the information sharing board 31 synchronizes the information stored in the information sharing board 31 via the proxy server 30 with the information sharing board 29, while the information stored in the information sharing board 29 is blocked by the proxy server 30. Thus, synchronization with the information sharing board 31 is prevented.

  As a result, the process operating in the sensor 28 exchanges information shared with the dedicated information sharing board 31 and also uses the proxy server 30 provided in another device (server 27) to share dedicated information. By synchronizing information stored in the board 31 with the information sharing board 29 and blocking information from other information sharing boards, it is possible to reduce the amount of communication associated with the synchronization processing.

  FIG. 9 is a block diagram showing the configuration of another embodiment of the inter-process information sharing system according to the present invention when the information sharing board is used with a plurality of devices such as mobile phones having relatively few hardware resources. .

  In FIG. 9, reference numeral 32 denotes a computer that is an apparatus having an information sharing board dedicated to the process, 33 is a server that is an apparatus having a proxy information sharing board, and 34, 35, and 36 are the processes to which the process operates. A mobile phone, which is a device that does not have a dedicated information sharing board, 37 is a dedicated information sharing board provided in the computer 32, 38 is a proxy information sharing board provided in the server 33, 105 is the Internet or LAN, etc. It is a general-purpose network.

  The computer 32 is connected to the network 105, and the server 33 is also connected to the network 105. The mobile phones 34, 35 and 36 are connected to the server 33 via a wireless line, a wired line, or the like.

  Here, the operation of the embodiment shown in FIG. 9 will be described. The lower part of FIG. 9 shows the relationship between the process operating on the computer 32 or the mobile phones 34, 35 and 36, the information sharing board 37 and the proxy information sharing board 38 in the server 38.

  The process operating on the computer 32 indicated by “PR 61” in FIG. 9 writes the information to be shared to the mobile phones 34, 35 and 36 by writing the shared information such as the data held in the dedicated information sharing board 37. To the shared state.

  Similarly, the processes operating on the mobile phones 34, 35, and 36 indicated by “PR62”, “PR63”, and “PR64” in FIG. 9 are performed by the proxy information sharing board 38 provided in the server 33 by itself. Each piece of information to be shared, such as data that it has, is written to the computer 32 or the like so that the information is shared.

  On the other hand, the information sharing board 37 and the proxy information sharing board 38 function as one virtual information sharing board by synchronizing the information written in cooperation with each other, and at the same time, the actual information sharing board 37 and the proxy information sharing board 37 By making information shared by the information sharing board 38 redundant, the reliability of the system is improved.

  As a result, the processes operating on the plurality of mobile phones 34 to 36 each exchange information shared with the proxy information sharing board 38 provided in another device (server 33), and the information sharing board 37. And the proxy information sharing board 38 synchronize the information written in cooperation with each other, so that the information sharing board can be used even for a plurality of mobile phones 34 to 36 that are devices with relatively few hardware resources. It becomes possible to do.

  In the description of the embodiment shown in FIG. 1, a process operating on a computer is a state in which the information is shared with other computers by writing shared information such as data held by the computer to the information sharing board. On the other hand, the information sharing board synchronizes the information written in cooperation with each other, thereby functioning as one virtual information sharing board and sharing information to a plurality of actual information sharing boards Although the reliability of the system is improved by making it redundant, the storage capacity of the information sharing board is limited depending on the specifications of the device provided with the information sharing board.

  For this reason, the information processing means sets the expiration date for the information stored in the information sharing board and automatically deletes information that has exceeded the expiration date, thereby reducing the storage capacity of the information sharing board It does n’t matter.

  Also, in the unlikely event that the information to be stored exceeds the storage capacity of the information sharing board, the information processing means will prevent the destruction of the shared information by sequentially deleting the information with the oldest writing date and time. It doesn't matter.

  In the description of the embodiment shown in FIG. 1, the information sharing board 200 shares all the information stored in the storage means 20 by synchronizing with other information sharing boards. In this case, it is assumed that the amount of communication for synchronization processing becomes very large.

  For this reason, each information sharing board individually sets an information sharing board that synchronizes shared information with each other, registers a group of information sharing boards that perform the synchronization processing in a table such as DHT (Distributed Hashtable), and shares information You may synchronize shared information between groups of boards. In this case, it is possible to reduce the amount of communication associated with the synchronization process.

  Furthermore, based on the statistics of the shared information used, information sharing boards having a high degree of sharing of the shared information are grouped and registered in a table such as DHT, and the shared information is synchronized between the groups of the information sharing boards. It doesn't matter.

  In the embodiment shown in FIG. 8, the proxy server 30 blocks the synchronization of information to the dedicated information sharing board 31 used by the process operating on the sensor 28. The proxy server 30 may be set.

  The configuration and operation of the proxy information sharing board are the same as those of the information sharing board as shown in FIGS. 3, 4, 5, and 6.

  Further, in the embodiment shown in FIG. 7 and the like, the proxy information sharing board is provided on a server which is another device for the sake of simplicity, but of course, the present invention is not limited to this. Both the information sharing board and the proxy information sharing board may be provided.

  Further, the embodiment shown in FIG. 1 and the like can be applied to a meteorological system in which sensors for weather observation and the like are distributed in a wide area.

  FIG. 10 is a configuration block diagram showing an embodiment when such an inter-process information sharing system according to the present invention is applied to a monitoring system. In the embodiment shown in FIG. 10, a system is assumed in which information acquired from each sensor is statistically processed and then displayed on the screen of a computer that is a monitoring terminal.

  In FIG. 10, 39, 40 and 41 are sensors that operate the process but do not have the process-specific information sharing board, 42 is a server that has a proxy information sharing board, and 43 operates the statistical processing application. A server that is a device having an information sharing board dedicated to the statistical processing application, 44, 45, and 46 are computers that operate processes and have an information sharing board dedicated to the process, and 106 is a general-purpose device such as the Internet or a LAN. Network.

  Computers 44, 45 and 46 are connected to network 106, and servers 42 and 43 are also connected to network 106. The sensors 39, 40 and 41 are connected to the server 42.

  Here, the operation of the embodiment shown in FIG. 10 will be described with reference to FIG. FIG. 11 shows the processes in the sensors 39, 40 and 41, the client processes in the computers 44, 45 and 46, the information sharing boards 48, 49, 50 and 51, the proxy information sharing board 47, and the statistics in the server 43. It is explanatory drawing which shows the relationship of a processing application.

  The processes operating by the sensors 39 to 41 indicated by “PR71”, “PR72”, and “PR73” in FIG. 11 share the data and the like that they have to the proxy information sharing board 47 provided in the server 42. By writing the information, the information is shared with the other computers 44 to 46 and the like.

  Similarly, the client processes operating on the computers 44 to 46 indicated by “CP71”, “CP72”, and “CP73” in FIG. 11 have their own data for the dedicated information sharing boards 48, 49, and 50, etc. Each piece of information to be shared is written in a shared state for other devices.

  Further, the statistical processing application operating on the server 43 indicated by “SA71” in FIG. 11 writes the information shared by itself to the dedicated information sharing board 51 to other devices. To the shared state.

  On the other hand, the information sharing boards 48, 49, 50 and 51 and the proxy information sharing board 47 function as one virtual information sharing board by synchronizing the information written in cooperation with each other and actually The information sharing boards 48, 49, 50 and 51 and the information shared by the proxy information sharing board 47 are made redundant to improve the reliability of the system.

  Under such circumstances, for example, a client process operating on the computer 44 indicated by “CP71” in FIG. 11 can acquire information measured by the sensors 39 to 41 by simply accessing the dedicated information sharing board 48. In addition, the result processed by the statistical processing application indicated by “SA71” in FIG. 11 can be acquired together.

  In other words, the client process running on each computer does not communicate directly with the sensors 39 to 41 or the server 43 running the statistical processing application indicated by “SA71” in FIG. Because it can be acquired from the information sharing board, it is possible to easily change the configuration of the monitoring system by simply adding or deleting sensors or various processing applications that have the information sharing board or proxy information sharing board Become.

1 is a configuration block diagram showing an embodiment of an inter-process information sharing system according to the present invention. It is explanatory drawing which shows the relationship of the process and information sharing board which operate | move with each computer. It is a block diagram explaining the details of the information sharing board. It is a flowchart explaining operation | movement of an information sharing board (information processing means). It is a flowchart explaining operation | movement of an information sharing board (event processing means). It is a flowchart explaining operation | movement of an information sharing board (event processing means). It is a block diagram showing the configuration of another embodiment of the inter-process information sharing system according to the present invention. It is a block diagram showing the configuration of another embodiment of the inter-process information sharing system according to the present invention. It is a block diagram showing the configuration of another embodiment of the inter-process information sharing system according to the present invention. It is a configuration block diagram showing an embodiment when the inter-process information sharing system according to the present invention is applied to a monitoring system. It is explanatory drawing which shows the relationship of the statistical process application in the process which operate | moves with a sensor, the client process which operate | moves with a computer, an information sharing board, a proxy information sharing board, and a server. It is explanatory drawing which shows an example of the inter-process information sharing system which shares information between the conventional processes. It is explanatory drawing which shows another example of the inter-process information sharing system which shares information between the conventional processes. It is explanatory drawing which shows another example of the inter-process information sharing system which shares information between the conventional processes.

Explanation of symbols

1, 2, 3, 4, 6, 7, 9, 10, 11, 12, 21, 26, 32, 44, 45, 46 Computer 5, 8, 22, 27, 33, 42, 43 Server 13, 14, 15, 16, 24, 29, 31, 37, 48, 49, 50, 51, 200 Information sharing board 17 Information processing means 18 Event processing means 19 Information synchronization means 20 Storage means 23, 34, 35, 36 Mobile phone 25, 38, 47 Proxy information sharing board 28, 39, 40, 41 Sensor 30 Proxy server 100, 101, 102, 103, 104, 105, 106 Network

Claims (13)

In an inter-process information sharing system that shares information between processes operating on devices existing on the network,
A plurality of computers, which are devices that operate the process and have an information sharing board dedicated to the process,
The process writes the information shared by itself to the information sharing board so that the information is shared with other devices, and the information sharing boards write in cooperation with each other via the network. An inter-process information sharing system, wherein the information is synchronized. A computer that is a device in which a process operates and an information sharing board dedicated to the process;
A server that is a device having a proxy information sharing board;
Equipment with which the process operates,
A process operating on the device exchanges information shared with the proxy information sharing board provided in the server, and the information sharing board and the proxy information sharing board cooperate with each other via the network. 2. The inter-process information sharing system according to claim 1, wherein the information written is synchronized. There are a plurality of devices on which the process operates, and the processes operating on these devices exchange information shared with the proxy information sharing board provided in the server, and the information sharing board and the 3. The inter-process information sharing system according to claim 2, wherein the proxy information sharing board synchronizes the information written in cooperation with each other via the network. A computer that is a device in which a process operates and an information sharing board dedicated to the process;
A server that is a device on which the proxy server operates;
A device in which a process operates and an information sharing board dedicated to the process,
A process operating on the device exchanges information shared with the information sharing board of the device, and is stored in the information sharing board of the device using the proxy server provided in the server. 2. The inter-process information sharing system according to claim 1, wherein the information is synchronized with the information sharing board of the computer and the information from the information sharing board of the computer is blocked. A plurality of devices on which a process operates and an information sharing board dedicated to the process;
A first server that is a device having a proxy information sharing board;
A second server which is a device on which the statistical processing application operates and has an information sharing board dedicated to the statistical processing application;
A plurality of computers, which are devices that operate the process and have an information sharing board dedicated to the process,
A process operating on the device exchanges information shared with the proxy information sharing board provided in the server, and the statistical processing application shares with the information sharing board Writing the information causes the information to be shared with other devices, and the information sharing board and the proxy information sharing board synchronize the information written in cooperation with each other via the network. The inter-process information sharing system according to claim 1. The information sharing board or the proxy information sharing board is
Storage means for storing the shared information;
Information processing means for performing processing of writing, reading and deletion of the shared information to the storage means;
An event processing means for performing a notification process for the event that has occurred;
6. The inter-process information sharing system according to claim 1, further comprising information synchronization means for performing synchronization processing with another information sharing board. The information processing means is
When it is determined that the information to be shared has been written, the information to be shared that is paired with the information to be shared and is written together with a key that is information used for handling the information to be shared is stored in the storage unit And
When it is determined that the information to be shared has been read, the shared information stored in the storage unit together with the designated key is read and delivered to the process or the statistical processing application,
7. The inter-process information sharing system according to claim 6, wherein when it is determined that the shared information has been deleted, the shared information stored in the storage unit together with the designated key is deleted. The event processing means is
7. The inter-process information sharing system according to claim 6, wherein when it is determined that an event has been registered, a key of information for event registration is registered together with information on the process or statistical processing application that has registered the event. The event processing means is
When it is determined that the information to be shared has been written or the information to be shared has been deleted, and the key corresponding to the information to be shared has been registered, the registered process information 7. The inter-process information sharing system according to claim 6, wherein an event registration process or a statistical processing application is identified based on the event registration, and an event occurrence is notified to the process or the statistical processing application. The information processing means is
7. The inter-process information sharing system according to claim 6, wherein an expiration date is set for the information to be stored, and the information exceeding the expiration date is automatically deleted from the storage means. The information processing means is
7. The inter-process information sharing system according to claim 6, wherein when the information to be stored exceeds the storage capacity of the storage means, the information with the oldest writing date is deleted sequentially. 12. The inter-process information according to claim 1, wherein information sharing boards or proxy information sharing boards that synchronize shared information with each other are grouped and the shared information is synchronized between the groups. Shared system. 13. The inter-process information sharing system according to claim 12, wherein information sharing boards or proxy information sharing boards having a high degree of sharing of the shared information are grouped based on statistics of the used shared information.

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