JP2005227921A - Service cooperation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a service cooperation system in which a plurality of services dynamically cooperate after operating the system. <P>SOLUTION: The service cooperation system is capable of making a plurality of services operating on a network cooperate with each other. The service cooperation system comprises a plurality of service supply means having service functions for providing services and existing on the network, a client receiving supply of the cooperated service, and an intermediary service means in which an optimal input/output parameter is fixed so that output of the cooperating service function is consistent with input of the cooperated service function on the basis of definition information of every service to be cooperated at a stage of cooperating service registration, output of the obtained cooperating service function is converted on the basis of the fixed input/output parameter at an use stage of the cooperation service, supply of service is requested as input of the cooperated service function for converted results, and output of the cooperated service function is transmitted to the client. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a service cooperation system that operates a plurality of services operating on a network such as the Internet in cooperation with each other, and particularly relates to a service cooperation system that can dynamically link a plurality of services after the system is operated. .

  Prior art documents related to a service cooperation system that operates a plurality of services operating on a network such as the Internet in cooperation with each other include the following.

Japanese Patent Laid-Open No. 10-049471 JP-A-10-232899 Japanese Patent Laid-Open No. 11-212911 JP 2002-007330 A JP 2002-312311 A JP 2003-036244 A

  FIG. 14 is a block diagram showing an example of a conventional DCS (Distributed Control System). In FIG. 14, 1, 2 and 3 are sensor means for measuring various physical quantities such as temperature, humidity and pressure, 4 and 5 are drive means such as actuators, 6 is control means such as a computer, 100 is a LAN (Local Area Network). Or a general-purpose network such as the Internet.

  The sensor means 1, 2 and 3 are connected to the network 100, and the drive means 4 and 5 are also connected to the network 100. Furthermore, the control means 6 is also connected to the network 100.

  Here, the operation of the conventional example shown in FIG. 14 will be described with reference to FIG. FIG. 15 is an explanatory diagram for explaining the flow of information.

  As shown by “IF01”, “IF02” and “IF03” in FIG. 15, information on physical quantities such as temperature, humidity and pressure measured by the sensor means 1, 2 and 3 is collected in the control means 6 via the network 100. Is done.

  Each piece of information collected in the control means 6 is appropriately processed by a simulator function preinstalled in the control means 6 as shown by “SM01” in FIG. 15 and displayed on the display means (see FIG. Not shown.)

  On the other hand, it is also possible to construct a service providing system by regarding the devices such as the sensor means described above as services that provide sensor information existing on the network by a service-oriented architecture (SOA).

  FIG. 16 is a block diagram showing an example of a conventional service providing system based on such a service-oriented architecture. 16, 7 and 8 are sensor means for providing sensor information as a service, 9 is a statistical processing means for providing execution of statistical processing as a service, 10 is a client such as a computer that receives the service, 101 is a LAN, the Internet, or the like It is a general-purpose network.

  Sensor means 7 and sensor means 8 are connected to network 101, and statistical processing means 9 is also connected to network 101. The client 10 is also connected to the network 101.

  Here, the operation of the conventional example shown in FIG. 16 will be described with reference to FIG. FIG. 17 is an explanatory diagram for explaining the flow of information.

  The sensor means 7 and 8 are provided with a service function for providing information on the physical quantity measured by themselves as a service, as indicated by “SV11” and “SV12” in FIG. 16, and similarly, the statistical processing means 9 is also provided for the input. A service function for providing a service for executing a statistical process and outputting a result is provided as indicated by “SV13” in FIG.

  Here, when the client 10 tries to receive a service provided from the sensor unit 7, in other words, when trying to acquire information on the physical quantity measured by the sensor unit 7, as shown in "US21" in FIG. Information of the physical quantity measured by accessing the service function indicated by “SV11” in FIG. 17 of the sensor means 7 via the network 101 is acquired.

  However, in the conventional example as shown in FIG. 14, the simulator function and other functions necessary for the processing previously installed in the control means 6 as shown in “SM01” in FIG. There is a problem that it is necessary to reconstruct the system such as installing the function in the control means 6 when processing that has not been assumed in advance after the system operation is to be performed. there were.

  On the other hand, in the conventional example based on the service-oriented architecture as shown in FIG. 16, even when there is an additional processing, a service that provides the additional processing to be added can be constructed and services can be combined.

  In this case, OASIS (Organization for the Advancement of Structured Information Standards) BPEL (Business Process Execution Language for Web Services), W3C WSCI (Web Services Choreography Interface), etc. have been proposed to link the assumed services. Yes.

  18 is a block diagram showing an example of a conventional service providing system capable of combining services. In FIG. 18, 7, 8, 9, 10, 101, SV11, SV12 and SV13 are the same as those in FIG. The code | symbol is attached | subjected.

  For example, it is assumed that the statistical processing unit 9 performs statistical processing using the physical quantities measured by the sensor units 7 and 8 as inputs.

  In this case, a script indicated by “SC31” in FIG. 18 is set in the client 10 for service cooperation, and “SV11”, “SV12”, and “SV13” in FIG. There is a description that the services provided by the service function "" are used in this order.

  For this reason, first, the client 10 obtains the physical quantity measured by the sensor means 7 by accessing the service function “SV11” in FIG. 18 via the network 101 as indicated by “US31” in FIG. 2, as shown by “US32” in FIG. 18, the service function “SV12” in FIG. 18 is accessed via the network 101 to acquire the physical quantity measured by the sensor means 8.

  Thirdly, the client 10 provides the physical quantity acquired from the sensor means 7 and sensor means 8 to the service function of “SV13” in FIG. 18 via the network 101 as indicated by “US33” in FIG. Get the result of statistical processing.

However, in the conventional example shown in FIG. 18, a known service that is already in operation is statically linked based on a preset script, and a service that is appropriately selected by the user after system operation is dynamically linked. There was a problem that it was not possible to make it happen.
Therefore, the problem to be solved by the present invention is to realize a service cooperation system capable of dynamically linking a plurality of services after the system is operated.

In order to achieve such a problem, the invention according to claim 1 of the present invention is:
In a service linkage system that allows multiple services running on a network to work together,
A service of cooperation source based on definition information for each service to be cooperated in a cooperation service registration stage, a plurality of service providing means having a service function for providing a service existing on the network, a client receiving the provision of the cooperation service Determine the optimal input / output parameters for conversion so that the output of the function matches the input of the service function of the link destination, and the service function of the link source acquired based on the input / output parameters determined in the link service use stage By providing an intermediary service means for converting the output and requesting the provision of the service as the input of the service function of the cooperation destination and transmitting the output of the service function of the cooperation destination to the client, a plurality of services are provided after the system is operated. Can be linked dynamically.

The invention according to claim 2
In the service cooperation system according to claim 1,
In the cooperation service registration stage, the client
Search for a service provided on the network, register a service to be linked selected from among the search results in the mediation service means, and wait until receiving the notification of the input / output parameters from the mediation service means The notified input / output parameter is displayed on the display means, and when changing the input / output parameter, the input / output parameter is changed and notified to the intermediary service means, so that a plurality of services can be obtained after the system is operated. It becomes possible to link dynamically.

The invention described in claim 3
In the service cooperation system according to claim 1,
In the cooperative service registration stage, the mediation service means
When a request for registration of a service to be linked from the client is received, definition information is acquired for each of the linkage source and linkage destination services specified for linkage, and the output of the linkage source service function and the linkage destination Compare with the input of the service function, determine the optimal input / output parameter and send it to the client. If there is a change in the input / output parameter, change the input / output parameter and confirm the linked service. By registering, it becomes possible to dynamically link a plurality of services after the system is operated.

The invention according to claim 4
In the service cooperation system according to claim 3,
In the cooperative service registration stage, the mediation service means
By sequentially transmitting the next best input / output parameters as necessary, it becomes possible to dynamically link a plurality of services after the system is operated.

The invention according to claim 5
In the service cooperation system according to claim 1,
In the cooperation service use stage, the client
The system operation is requested by requesting the brokerage service means to use the confirmed cooperative service, waiting until the processing result is received from the brokering service means, and displaying the received processing result on the display means. Later, multiple services can be linked dynamically.

The invention described in claim 6
In the service cooperation system according to claim 1,
In the cooperation service use stage, the mediation service means,
When there is a request for use of a confirmed cooperative service, the service function of the cooperation source is requested to provide the service, and the output from the service function of the cooperation source is waited until the service function of the cooperation source. The output obtained from the process is converted based on the input / output parameters that have been determined, and the conversion result is used as an input to request the provision of the service to the cooperation destination service function and wait until the output is obtained from the cooperation destination service function. Then, by transmitting the output acquired from the service function of the cooperation destination to the client, it becomes possible to dynamically link a plurality of services after the system is operated.

The invention described in claim 7
In a service linkage system that allows multiple services running on a network to work together,
A plurality of information providing means having a service function for collecting and providing information on the target object or surroundings of the target object, and a plurality of service functions for providing a process for predicting the occurrence of disease of the crop based on the input information The output of the service function of the information providing means coincides with the input of the service function of the processing providing means based on the definition information for each service to be provided with the processing providing means, the client receiving the provision of the linked service, and the linked service registration stage The optimum input / output parameter for conversion is determined, the output of the service function of the information providing means acquired based on the input / output parameter determined in the cooperation service use stage is converted, and the conversion result is converted into the processing providing means. Requesting the provision of a service as an input of the service function of the By providing a mediation service means to be transmitted to the client, it is possible to obtain a more effective forecasting.

The present invention has the following effects.
According to the inventions of claims 1, 2, 3, 4, 5 and 6, the intermediary service means outputs the service function of the “cooperation source” based on the definition information for each service to be cooperated in the cooperation service registration stage. Determine the optimal input / output parameters for conversion to match the input of the service function of the “cooperation destination”, and the service function of the “cooperation source” acquired based on the input / output parameters determined in the cooperation service use stage. By converting the output and requesting the provision of the service as the input of the service function of the “cooperation destination” as the conversion result, a plurality of services can be dynamically linked after the system is operated.

  According to the invention of claim 7, a service function for collecting and providing information on an object or surroundings of the object, and a service function for providing a process for predicting the occurrence of a disease in a crop based on input information It is possible to obtain more effective forecasts by dynamically linking and.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of a service cooperation system according to the present invention. In FIG. 1, 11 and 12 are service providing means and sensor means for providing sensor information as a service, 13 is a service providing means and statistical processing means for providing execution of statistical processing as a service, and 14 is a computer that receives the provision of the service , 15 is an intermediary service means for linking services, and 102 is a general-purpose network such as a LAN or the Internet.

  The sensor means 11 and the sensor means 12 are connected to the network 102, and the statistical processing means 13 is also connected to the network 102. The client 14 and the mediation service means 15 are also connected to the network 102.

  The operation of the embodiment shown in FIG. 1 will be described with reference to FIGS. 2, 3, 4, 5, 6, 6, 7, 8, 10, and 11. FIG. 2 and 7 are flowcharts for explaining the operation of the client 14, FIGS. 3, 5, 6, 8, 10, and 11 are explanatory diagrams for explaining the flow of information. FIGS. 4 and 9 are mediations. FIG. 6 is a flowchart for explaining the operation of service means 15.

  The sensor means 11 and 12 are provided with a service function for providing information on the physical quantity measured by themselves as a service as shown in “SV41” and “SV42” in FIG. A service function for providing a service for executing statistical processing and outputting a result is provided as indicated by “SV43” in FIG.

  However, in order to provide services by the devices such as the sensor means 11, the sensor means 12 and the statistical processing means 13 and the service functions indicated by “SV41”, “SV42” and “SV43” in FIG. ) A procedure for executing processing on different devices on the network such as functions is required.

  For example, as a specific example, SOAP (Simple Object Access Protocol) and CORBA (Common Object Request Broker Architecture: an architecture that enables communication between objects across platform and language barriers. (Registered trademark)), etc., but is not particularly limited thereto.

  In addition, when disclosing services provided by devices such as the sensor means 11, the sensor means 12, and the statistical processing means 13 and the service functions indicated by “SV41”, “SV42”, and “SV43” in FIG. Disclose definition information by Services Description Language).

Further, in the present invention, the definition information corresponding to the RPC mechanism employed is added with the following information as definition information.
service
The method
Method input parameters
Method input parameter type
Method output
Method output type

  In “S001” in FIG. 2, the client 14 searches for a service provided on the network 102. Specifically, UDDI (Universal Description, Discovery and Integration), CORBA Naming Service, or the like is used.

  Also, for example, this time, the service function that provides information on the physical quantity measured by the sensor means 11 indicated by “SV41” in FIG. 1 is “cooperation source”, and the statistics of the statistical processing means 13 indicated by “SV43” in FIG. Assume that a service function that executes a process and outputs a result is a “cooperation destination”, and the physical quantity information measured by the sensor unit 11 is statistically processed.

  Further, it is assumed that the output of the “cooperation source” service function and the input of the “cooperation destination” service function have a one-to-one correspondence.

  First, in the cooperation service registration stage, in “S002” in FIG. 2, the client 14 registers information related to the service to be cooperated selected from the search results in the intermediary service means 15 via the network 102. In FIG. 2, in “S 003”, the client 14 inputs / outputs to convert the output of the service function of “cooperation source” to the input of the service function of “cooperation destination” via the network 12 from the intermediary service unit 15. Wait until parameter notification is received.

  For example, as shown by “RG51” in FIG. 3, the client 14 registers information related to the service to be linked via the network 102 in the mediation service means 15 and notifies the input / output parameters from the mediation service means 15 via the network 12. Wait for reception.

  When the notification of the input / output parameter is received via the network 12 in “S003” in FIG. 2, the client 14 displays the notified input / output parameter on the display means in “S004” in FIG. Determine whether to change parameters.

  If it is determined that the input / output parameter is changed in “S004” in FIG. 2, the client 14 changes the input / output parameter and notifies the intermediary service means 15 via the network 102 in “S005” in FIG. .

  On the other hand, in “S101” in FIG. 4, the intermediary service means 15 determines whether or not a request for registration of the service to be linked via the network 102 has been received from the client 14, and if received, a request for registration of the service to be linked is received. If it is determined that it has not been performed, the process returns to the step “S101” in FIG.

  If it is determined in “S101” in FIG. 4 that the registration request for the service to be linked is received, the intermediary service means 15 is designated to be linked via the network 102 in “S102” in FIG. Definition information is acquired for each “cooperation source” and “cooperation destination” service.

  For example, as shown by “GD61” in FIG. 5, the mediation service means 15 accesses the service function indicated by “SV41” in FIG. Similarly, as indicated by “GD62” in FIG. 5, the intermediary service means 15 accesses the service function indicated by “SV43” in FIG. Get information.

  Then, in “S103” in FIG. 4, the mediation service means 15 compares the output of the service function of “cooperation source” with the input of the service function of “cooperation destination”. Specifically, the output of the service function of “cooperation source” is compared with the input of the service function of “cooperation destination” by referring to an ontology dictionary describing the relationship between terms.

  Since keywords are arranged in a tree in the ontology dictionary, check where the output of the service function of the “cooperation source” and the input of the service function of the “cooperation destination” are in the tree. Thus, the similarity between the two can be recognized.

  In “S104” in FIG. 4, the intermediary service means 15 performs the optimum input for conversion so that the output of the service function of the “cooperation source” matches the input of the service function of the “cooperation destination” by the comparison as described above. The output parameter is determined and transmitted to the client 14.

  For example, as shown by “SP 71” in FIG. 6, the mediation service means 15 transmits optimal input / output parameters to the client 14 via the network 102.

  Then, in "S105" in FIG. 4, the intermediary service means 15 determines whether or not the input / output parameter has been changed from the client 14. If it is determined that the input / output parameter has not been changed, Proceed to step "S107".

  If it is determined that the input / output parameter has been changed in “S105” in FIG. 4, the intermediary service means 15 changes the input / output parameter in accordance with an instruction from the client 14 in “S106” in FIG.

  For example, as indicated by “AC71” in FIG. 6, when an input / output parameter change instruction is received from the client 14 via the network 102, the mediation service unit 15 changes the input / output parameter according to the instruction from the client 14. .

  Finally, in “S107” in FIG. 4, the mediation service means 15 determines and registers the linked service.

  Secondly, in the cooperation service use stage, in “S201” in FIG. 7, the client 14 requests the intermediary service means 15 to use the confirmed cooperation service via the network 102, and “S202” in FIG. Wait until the processing result is received at.

  For example, as indicated by “RQ81” in FIG. 8, the client 14 requests the intermediary service means 15 to use the established cooperative service via the network 102.

  If it is determined that the processing result is received in “S202” in FIG. 7, the client 14 appropriately displays the received processing result on the display unit in “S203” in FIG.

  On the other hand, in “S301” in FIG. 9, the intermediary service means 15 determines whether or not there is a request for using the confirmed cooperative service. If it is determined that there is no use request, “S301” in FIG. Return to the step.

  If it is determined that there is a use request in “S301” in FIG. 9, the intermediary service means 15 requests service provision to the “cooperation source” service function via the network 102 in “S302” in FIG. At the same time, the process waits until an output is obtained from the service function of “cooperation source” in “S303” in FIG.

  For example, as shown in “US81” in FIG. 8, the mediation service means 15 accesses the service function shown in “SV41” in FIG. As shown by “GA91” in FIG. 10, the mediation service means 15 outputs via the network 102 the service function indicated by “SV41” in FIG. 10 which is the “cooperation source”, in other words, the physical quantity measured by the sensor means 11. Wait until you get the information.

  When it is determined in “S303” in FIG. 9 that the output has been acquired from the service function of “cooperation source”, the intermediary service means 15 in “S304” in FIG. In FIG. 9, “conversion destination” service function is requested via the network 102 and the “cooperation destination” service function is requested to provide the service via the network 102 and “S306” in FIG. Wait for output to be obtained.

  For example, as shown in “US91” in FIG. 10, the intermediary service means 15 accesses the service function shown in “SV43” in FIG. As shown by “GA101” in FIG. 11, the mediation service means 15 outputs via the network 102 the service function indicated by “SV43” in FIG. 11 which is the “cooperation destination”, in other words, the physical quantity measured by the sensor means 11. Wait until the statistical processing result of the information is obtained.

  Finally, when it is determined in “S 306” in FIG. 9 that the output has been acquired from the service function of “cooperation destination”, the mediation service means 15 in “S 307” in FIG. 9 sends the acquired output via the network 102. Send to client 14.

  For example, as shown in “SA101” in FIG. 11, the mediation service means 15 outputs to the client 14 via the network 102 from the service function shown in “SV43” in FIG. The statistical processing result of the information on the physical quantity measured by the sensor means 11 is transmitted.

  As a result, at the cooperation service registration stage, the mediation service means 15 converts the output of the service function of the “cooperation source” to match the input of the service function of the “cooperation destination” based on the definition information for each service to be cooperated. The most suitable input / output parameters are determined, the output of the service function of the “cooperation source” obtained based on the input / output parameters determined in the cooperation service use stage is converted, and the conversion result is input to the service function of the “cooperation destination” By requesting the provision of services, it is possible to dynamically link a plurality of services after the system is operated.

  In the description of the embodiment shown in FIG. 1, the case where the output of the service function of the “cooperation source” and the input of the service function of the “cooperation destination” are in one-to-one correspondence is illustrated. Of course, there may be a plurality of inputs of the service function of “cooperation destination”.

  In the description of the embodiment shown in FIG. 1, when the user is not satisfied with the notified input / output parameter, the user operates the client 14 to change the input / output parameter. However, if necessary, the next best input / output parameter (next candidate) may be transmitted sequentially.

  In addition, if the type of output of the service function of the “cooperation source” and the input of the service function of the “cooperation destination” are different, it may be automatically converted from a numerical value to a character string or the like if it can be easily converted. Absent.

  Of course, the present invention may be applied to the agricultural field. FIG. 12 is a configuration block diagram showing an embodiment applied to a monitoring system for forecasting the occurrence of diseases of agricultural crops.

  In FIG. 12, reference numeral 16 denotes a service providing means, which is a surveillance camera that provides an object or an image of the surroundings of the object as a service. Reference numeral 17 denotes a service providing means, which is a measured object or a surrounding object. Temperature detecting means for providing temperature information as a service, 18 is a service providing means, humidity detecting means for providing information on the measured object or humidity around the object as a service, and 19 is a service providing means. Sunlight detection means for providing the measured object or information on the sunlight around the object as a service, 20 is a client such as a computer receiving the service, 21 is an intermediary service means for linking services, and 103 is a LAN Or a general-purpose network such as the Internet.

  The monitoring camera 16, the temperature detecting means 17, the humidity detecting means 18 and the sunshine detecting means 19 correspond to information providing means for providing sensor information as a service, but description of each service function is omitted.

  The monitoring camera 16, the temperature detection means 17, the humidity detection means 18 and the sunshine detection means 19 are each connected to the network 103, and the client 20 and the mediation service means 21 are also connected to the network 103.

  Here, the operation of the embodiment shown in FIG. 12 will be described with reference to FIG. FIG. 13 is an explanatory diagram for explaining the flow of information. Further, in the embodiment shown in FIG. 12, the rice blast disease is assumed as the disease to be predicted.

  The mediation service means 21 has a “blast occurrence prediction algorithm” corresponding to a plurality of services such as “AG111”, “AG112”, and “AG113” in FIG. 13 and provides various processes as services. It corresponds to the processing providing means.

  Further, the service functions of the sensor means of the monitoring camera 16, the temperature detection means 17, the humidity detection means 18 and the sunshine detection means 19 are linked to the “blast disease occurrence prediction algorithm” which is a service indicated by “AG111” in FIG. Assuming

  The mediation service means 21 provides services from the service functions of the monitoring camera 16, temperature detection means 17, humidity detection means 18, and sunshine detection means 19 via the network 103, as shown by "US111" in FIG. Get information about video, temperature, humidity and sunshine.

  Then, the mediation service means 21 converts the acquired information as shown in “US112” in FIG. 13 based on the input / output parameters, and inputs the “blast disease occurrence prediction algorithm” that is the service shown in “AG111” in FIG. As well as receiving the service.

  Finally, the mediation service means 21 displays the result of prediction of the occurrence of blast disease obtained from the “blast disease occurrence prediction algorithm”, which is the service indicated by “AG111” in FIG. 13, as indicated by “RE111” in FIG. To the client 20 via

  However, as shown in “AG111”, “AG112”, and “AG113” in FIG. 13, there are a plurality of “blast occurrence prediction algorithms”, and an optimal “blast occurrence prediction algorithm due to changes in weather conditions and the like” "Is different.

  For this reason, if it is determined that the “blast disease occurrence prediction algorithm” indicated by “AG111” in FIG. 13 is ineligible, the monitoring camera 16, the temperature detecting means 17, the humidity detecting means 18, and the sunshine detecting means 19 are used. The service function of the sensor means in FIG. 13 is not the “blast disease occurrence prediction algorithm” indicated by “AG111” in FIG. 13 but the “blast disease occurrence prediction algorithm” that is the service indicated by “AG112” or “AG113” in FIG. It is possible to obtain more effective forecasts by dynamically re-linking with.

  As a result, the service function that collects and provides information on the target object or the surrounding area of the target object and the service function that provides a process for predicting the occurrence of crop diseases based on the input information are dynamically linked. This makes it possible to obtain a more effective forecast.

1 is a block diagram showing a configuration of an embodiment of a service cooperation system according to the present invention. It is a flowchart explaining operation | movement of a client. It is explanatory drawing explaining the flow of information. It is a flowchart explaining operation | movement of a mediation service means. It is explanatory drawing explaining the flow of information. It is explanatory drawing explaining the flow of information. It is a flowchart explaining operation | movement of a client. It is explanatory drawing explaining the flow of information. It is a flowchart explaining operation | movement of a mediation service means. It is explanatory drawing explaining the flow of information. It is explanatory drawing explaining the flow of information. It is a configuration block diagram showing an embodiment applied to a monitoring system for forecasting the occurrence of diseases of agricultural crops. It is explanatory drawing explaining the flow of information. It is a block diagram showing an example of a conventional DCS. It is explanatory drawing explaining the flow of information. It is a block diagram showing an example of a conventional service providing system based on a service-oriented architecture. It is explanatory drawing explaining the flow of information. It is a configuration block diagram showing an example of a conventional service providing system capable of combining services.

Explanation of symbols

1, 2, 3, 7, 8, 11, 12 Sensor means 4, 5 Drive means 6 Control means 9, 13 Statistical processing means 10, 14, 20 Client 15, 21 Intermediary service means 16 Monitoring camera 17 Temperature detection means 18 Humidity Detection means 19 Sunlight detection means 100, 101, 102, 103 Network

Claims (7)

In a service linkage system that allows multiple services running on a network to work together,
A plurality of service providing means having a service function for providing a service existing on the network;
With a client who receives a linked service,
Based on the definition information for each service to be linked at the linked service registration stage, determine the optimal input / output parameters for conversion so that the output of the linked service function matches the input of the linked service function, and use the linked service The output of the service function of the cooperation source acquired based on the input / output parameters determined in the stage is converted, the conversion result is input to the service function of the cooperation destination, the provision of the service is requested, and the output of the service function of the cooperation destination is sent to the client A service cooperation system comprising an intermediary service means for transmitting. In the cooperation service registration stage, the client
Search for services provided on the network,
Register the service to be linked selected from among the search results in the mediation service means,
Wait until receiving the input / output parameter notification from the mediation service means,
Display the notified input / output parameter on the display means,
2. The service cooperation system according to claim 1, wherein when the input / output parameter is changed, the input / output parameter is changed and notified to the mediation service means. In the cooperative service registration stage, the mediation service means
When a request for registration of a service to be linked from the client is received, definition information is acquired for each of the linkage source and linkage destination services designated for linkage,
Compare the output of the service function of the linkage source with the input of the service function of the linkage destination,
Determine the optimal input / output parameters and send them to the client;
If there is a change in the input / output parameters, change the input / output parameters,
2. The service linkage system according to claim 1, wherein the linked service is confirmed and registered. In the cooperative service registration stage, the mediation service means
4. The service cooperation system according to claim 3, wherein sub-optimal input / output parameters are sequentially transmitted as necessary. In the cooperation service use stage, the client
Requesting the intermediary service means to use a confirmed cooperative service;
Wait until the processing result is received from the mediation service means,
The service cooperation system according to claim 1, wherein the received processing result is displayed on a display unit. In the cooperation service use stage, the mediation service means,
When there is a request for use of a confirmed cooperative service, the service function of the cooperation source is requested to provide the service and the output waits until the output is obtained from the service function of the cooperation source,
Based on the input / output parameters that have confirmed the output obtained from the service function of the cooperation source,
Requesting the provision of service to the service function of the cooperation destination as an input of this conversion result and waiting until obtaining output from the service function of the cooperation destination,
The service cooperation system according to claim 1, wherein an output acquired from the service function of the cooperation destination is transmitted to the client. In a service linkage system that allows multiple services running on a network to work together,
A plurality of information providing means having a service function of collecting and providing information on the object or surroundings of the object;
A plurality of process providing means having a service function for providing a process for predicting the occurrence of a disease in a crop based on input information;
With a client who receives a linked service,
Based on the definition information for each service to be linked in the linked service registration stage, an optimum input / output parameter for converting the output of the service function of the information providing unit to match the input of the service function of the processing providing unit is determined. , Converting the output of the service function of the information providing means acquired based on the input / output parameters determined in the cooperative service using stage, and requesting the provision of the service by using the conversion result as the input of the service function of the processing providing means, and providing the processing An intermediary service means for transmitting the output of the service function of the means to the client.

Images