JP5745446B2 - Technical calculation method, technical calculation system, and client device - Google Patents

Description

  The present invention relates to a technical calculation method, a technical calculation system, and a client device for providing a technical calculation service via a communication network or the like.

  As a conventional technique in this technical field, for example, Patent Document 1 discloses a technique related to a processing simulation service related to semiconductor manufacturing. In semiconductor manufacturing, when a new manufacturing apparatus or a new processing process is introduced, it is necessary to acquire enormous data such as yield under various processing conditions and prepare a processing recipe based on the data.

  The technique disclosed in Patent Document 1 is intended to enable a semiconductor manufacturer to easily introduce a new manufacturing apparatus and a new processing process. The manufacturing apparatus manufacturer can add a processing recipe and an enormous amount accompanying it to a server on the Internet. In this case, a processing simulation is performed using the processing recipe and accompanying data for the processing conditions input from the user via the Internet, and the result is presented to the user who requested it. According to this technology, high-level technical information and know-how such as processing recipes and accompanying data are concealed, and processing success / failure judgment using them is carried out in a form that reduces the experiment and prototyping process by semiconductor manufacturers. be able to.

  Patent Document 2 discloses a technique related to a calculation analysis service using a communication line. The technique disclosed in Patent Document 2 creates a user information file on a server for storing calculation data and calculation results of a calculation analysis program to be used when a registered user logs in, and transmits this to a user terminal. The user inputs the conditions related to the calculation to be executed, stores the result of executing the calculation analysis program based on this data, transmits it in the user information file, and deletes the user information file when logging out It is said. According to this technology, it is possible to enhance the security effect by preventing direct contact by a user to a plurality of calculation analysis programs that are the core of the calculation analysis service.

JP 2003-50871 A JP 2002-41453 A

  In the above-described conventional technology, the protection target in the system that provides the technical calculation service is server-side information and programs that perform simulation and calculation analysis. On the other hand, there is information that should be kept confidential on the user side using such a service.

  For example, considering an example of a processing simulation service related to semiconductor manufacturing disclosed in Patent Document 1, when a semiconductor manufacturer applies a new process, if the service is provided by a manufacturer that has established a certain degree of trust relationship Although it is good, even if a manufacturing equipment manufacturer that has not made a transaction so far provides this type of service, there is a high possibility of hesitating to use that service.

  Even if such a credit problem is included in the service contract such as “deleting the user information file at logout” as disclosed in Patent Document 2, information on the result of the calculation in the middle There is a problem in that the possibility of secondary use cannot be denied. Even if the user side information such as the processing conditions presented to the technical calculation service provider is encrypted with the key specified by the user, it must be unencrypted at the time of technical calculation execution. Therefore, when the technical calculation service provider cannot be trusted, it is not an effective solution.

  The present invention has been made in view of such a problem, and when using a technical calculation service via a communication network or the like, it is difficult for information relating to a calculation target provided by the user to be transmitted to the service provider. It is an object to provide a calculation method, a technical calculation system, and a client device used therefor.

  In order to solve the above-mentioned problem, the present invention provides a calculation condition setting information in which a client apparatus configured to send calculation condition setting information to a server apparatus to perform technical calculation and receive the calculation result from the server apparatus. Dividing the overall model to be calculated into a plurality of partial models, and the client device concealing the connection relationship between the elements located at the boundaries between the partial models, and for each of the divided partial models Requesting the server device to execute technical calculation, receiving the calculation result returned by the server device that has executed the technical calculation for the requested partial model, and receiving the client device; Are the calculation results for the plurality of partial models returned from the server device. By combining with the connections of the elements to be located at the boundary between Dell, and intended to include the steps of generating and displaying the calculation result for the calculation target of the entire model.

  According to the present invention, when using a technical calculation service via a communication network or the like, a technical calculation method, a technical calculation system, and a client device used therefor, it is difficult for information relating to a calculation target provided by the user to be transmitted to the service provider. Can be provided.

It is a figure which shows the structural example of the technical calculation system which concerns on Embodiment 1. FIG. It is an example of the definition screen of a fluid pipeline network when the technical calculation to implement is simulation of a fluid pipeline network. It is an example of the attribute information input screen which concerns on piping installation when the technical calculation to implement is simulation of a fluid pipeline network. It is an example of the definition screen of a plant structure in case the technical calculation to implement is a chemical plant simulation. It is an example of the definition screen of a block diagram in case the technical calculation to implement is a simulation of a block diagram. It is a figure which shows the structural example of the technical calculation system which concerns on Embodiment 2. FIG. It is a figure which shows the structural example of the technical calculation system which concerns on Embodiment 3. FIG. It is a figure which shows the structural example of the technical calculation system which concerns on Embodiment 4. FIG. It is a data structural example of the temporary model corresponding to the fluid pipeline network illustrated in FIG. 10 is a data example of a technical calculation model corresponding to the temporary model of FIG. 9. It is an example of the display screen of a technical calculation result.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings as appropriate.

<Embodiment 1>
FIG. 1 is a diagram illustrating a configuration example of a technical calculation system according to the first embodiment of the present invention. As shown in FIG. 1, the present technology calculation system is configured by connecting a client terminal device 1010 and a server device 1020 to a communication network 1030.

  The server apparatus 1020 includes a technical calculation unit 1021, a technical calculation request processing unit 1022, a technical calculation request processed by the technical calculation unit 1021 (including divided calculation target information and its boundary condition and initial condition information) 1056 and Communication means 1023 for exchanging technical calculation results 1065 with the client terminal apparatus 1010 is provided. The information exchanged between the server device 1020 and the client terminal device 1010 is preferably subjected to security processing such as encryption in order to prevent information leakage to a third party.

  The client terminal device 1010 includes a technical calculation condition setting unit 1011 for inputting unique information related to the technical calculation required by the user, a problem including the input calculation target information, its boundary condition, and initial condition information (overall model). Is divided into a plurality of partial problems (partial models), a calculation target dividing means 1012, a technical calculation processing requesting means 1013 for transmitting each of the divided partial problems to an appropriate server device 1020 through the communication means 1014, and communication means The technical calculation result management means 1015 that holds and manages a plurality of technical calculation results 1072 obtained through 1014, and the technical calculation results 1073 corresponding to the respective partial problems managed by the technical calculation result management means 1015 are integrated into the user Technical calculation result synthesis means 1016 for generating the technical calculation result 1074 presented to And a technical calculation result displaying means 1017 for presenting the technical calculation result 1074 to the user. The client device 1010 may be configured by a single computer or may be configured by a plurality of computers.

  Next, the flow of information and processing in the present technology calculation system will be described with reference to FIGS.

  Corresponding to each technical calculation service provided to the user, the technical calculation condition setting means 1011 controlled by a program installed in advance in the client terminal device 1010 has various definitions necessary for using the technical calculation service. By displaying an information input screen and accepting input of definition information from the user, an entire model including calculation target information and boundary conditions thereof is set.

  For example, when the provided technical calculation service is simulation of a fluid pipeline network, a fluid pipeline network definition screen as illustrated in FIG. 2 is displayed. Further, the user inputs attribute information of each piping element defined on this screen using a screen illustrated in FIG. The attribute information to be input includes, for example, information on the pipe diameter, the tank liquid level, and the pump performance. In addition, the user uses an input screen (not shown) to input the pressure and flow rate at the upstream and downstream ends of the pipeline network, which are the boundary conditions when executing the technical calculation, and the initial pressure of each piping element. And input initial conditions such as flow rate.

  The various information input by the user is given to the technical calculation means 1021 via the calculation object dividing means 1012, the technical calculation processing request means 1013, the communication means 1014, the communication means 1023, and the technical calculation request processing means 1022, and the technical calculation is performed. Used for.

  Here, the model of the fluid pipeline network illustrated in FIG. 2 is a partial model after being divided by the calculation object dividing unit 1012, and 2101 to 2107 are included in each element excluding piping, and 2111 to 1111 are connected to each piping. Assuming that an identification number such as 2123 is assigned by the calculation object dividing unit 1012, the operation of the present technical calculation system will be described below.

  The technical calculation processing requesting unit 1013 shows information (internal information for displaying graphics) that is the basis for displaying the partial model to be calculated divided in this way as shown in FIG. Is converted to a simple data format (here, this will be referred to as a temporary model), identification information indicating a technical calculation type is added, and technical calculation requests 1055 and 1056 are sent to the server apparatus 1020 via the communication unit 1014. Send.

  The technical calculation request processing unit 1022 of the server apparatus 1020 can acquire the technical calculation type identification information from the data of the technical calculation request 1056 and 1061 received by the communication unit 1023 and execute the technical calculation corresponding to the identification information. The appropriate technical calculation means 1021 is selected, and the temporary model data 1062 is distributed to the technical calculation means 1021.

  The technical calculation means 1021 analyzes a portion related to the structure of the model in the given temporary model, and performs conversion into a data format necessary for technical calculation (herein referred to as a technical calculation model). At that time, attribute information (for example, pipe length, piping system, pipe end pressure, flow rate, etc.) given to each component in the temporary model is also converted into data corresponding to the technical calculation model, and the technical calculation model Set as attribute value. The arithmetic unit included in the technical calculation unit 1021 executes technical calculation corresponding to the information of the technical calculation model by a predetermined technical calculation program.

  For example, when the technical calculation unit 1021 performs the simulation of the fluid pipeline network illustrated in FIG. 2, a technical calculation model as illustrated in FIG. 10 is generated from the temporary model illustrated in FIG. The technical calculation program for simulating the fluid pipeline network is, for example, a technical calculation obtained by executing an operation that simulates the operation based on the relational expressions as shown in Equations 1 to 4 when the piping elements are viewed. The technical calculation result 1063 is generated by associating the above result with the elements of the original temporary model.

  The technical calculation result 1063 generated by the technical calculation means 1021 is returned from the technical calculation request processing means 1022 to the requesting client terminal device 1010 of the technical calculation request 1056 and 1061 via the communication means 1023 (technical calculation). Results 1064, 1065). For example, as a result of the simulation of the fluid pipeline network as shown in FIG. 2, the state quantities (P, H, T of Formulas 1 to 4) of each element of the technical calculation model at a predetermined time are obtained as the result of the technical calculation. Therefore, these are associated with the elements of the provisional model and the simulation time information is transmitted as the technical calculation results 1064 and 1065.

  In the case of simulation, since the calculation result is transmitted from the server device 1020 at every fixed time step, the technical calculation result management means 1015 associates the identification result of each element constituting the temporary model with the calculation result. Keep and manage.

  The technical calculation result synthesizing unit 1016 performs correspondence between the internal information for graphics display and the identification number of each element constituting each divided temporary model, and the calculation before the division by the calculation target dividing unit 1012 is performed. By using the identification information of each element included in the result (the identification number of each element that makes up the temporary model), the calculation results obtained by dividing the result into multiple temporary models are combined, and the entire calculation target (overall model) A technical calculation result 1074 for is generated.

  For example, as shown in FIG. 11, the technical calculation result display means 1017 displays the result of technical calculation related to the element when a double click operation or the like is performed on the element on the definition screen to be calculated.

  If the provided technical calculation service is a chemical plant simulation, a process flow diagram definition screen as illustrated in FIG. 4 is displayed. The user inputs the process flow diagram of the target plant on this screen, and the size of each equipment constituting the process, the number of stages in the case of a plate tower, the position of the raw material input stage, the product extraction stage, etc., and the reaction Enter the conditions, boundary conditions such as the assumed raw material composition and input amount, and the initial state of each facility.

  Further, when the provided technical calculation service is a simulation using a block diagram, a block diagram definition screen as illustrated in FIG. 5 is displayed. The user inputs a block diagram to be calculated on this screen, and further inputs parameter values of each calculation element included in the block diagram.

  The calculation condition information 1052 input by the technical calculation condition setting unit 1011 is input to the calculation object dividing unit 1012 and divided into a plurality of subproblems. The division into subproblems is performed based on the inputted configuration of the calculation object, boundary conditions, and initial conditions. It should be noted that it is preferable to integrate the parts having strong interdependence among the components to be calculated, and to divide the calculation object at the parts having low interdependency. At this time, the calculation target is divided so that the state of the component of each divided group can be regarded as a boundary condition for the component of another group.

  For example, in the case of a calculation model relating to a pipeline network, the model may be divided before and after a part such as a tank or a reservoir that is less changed than other parts. Since elements that become such division boundaries differ depending on the type of technical calculation service that is the target, for each technical calculation service, information regarding whether or not the division is possible can be calculated in advance for each element that defines the target. The object dividing unit 1012 can divide the calculation object regardless of the type of the technical calculation service to be processed.

  Here, the calculation object shown by the block diagram in FIG. 5 is considered as a very simple case. In this case, at a certain time t, the output x (t) of the addition element 5002 is obtained by using the output N of the constant element 5001 and the output y (t) of the integration element 5005 (assuming y (t) is constant), x (T) = N + y (t). Further, the output z (t) of the integrating element 5003 can be calculated as z (t) = x (t) × y (t), and the output of the integrating element 5005 is y (t + Δt) = y (t) + k × z It can be calculated as (t) × Δt.

  Therefore, when all the calculation elements have a setting that can be divided, the calculation model related to each element is transmitted to the technical calculation means 1021, and an input value that becomes a boundary condition from the upstream block at every time step Δt. In addition, the time value of the entire system can be calculated by transmitting the current value as the initial condition to the technical calculation means 1021 and calculating it in order.

  If another integral method is set so that only the integral element can be divided, the constant element 5001, the addition element 5002, the integration element 5003, and the gain element 5004 are combined into one group, and the integration element 5005 is combined into another group. Each calculation model is transmitted to the technical calculation means 1021, and at each time step Δt, the boundary conditions of the subproblems constituted by these calculation models and the current values of the respective calculation elements are transmitted to the technical calculation means 1021 as initial values. Then, the time behavior of the entire system can be calculated by calculating in order.

  Although the same result can be obtained by either method, the number of communication and the amount of communication data between the server device 1020 and the client terminal device 1010 are lower because the latter is smaller. Calculation is possible. Of course, it is possible to make the whole as one problem, and this is expected to be the fastest, but the problem of the present invention is that it is necessary to transmit the information of the entire calculation target to the server apparatus 1020. It cannot be solved.

  It is not always necessary for the system to perform all such divisions automatically, but the user can manually specify division points from the viewpoint of interdependence as described above, or the system can automatically perform such divisions. The division result may be changed.

  Next, the technical calculation request 1055 for each of the partial problems 1053 divided in this way is sent from the technical calculation processing request unit 1013 to the server apparatus 1020 that provides the technical calculation service desired by the user via the communication unit 1014. It is transmitted and received by the technical calculation request processing means 1022, and the technical calculation is executed by the technical calculation means 1021. Each partial problem 1053 generated by the calculation object dividing unit 1012 is combined with information or a program necessary for executing the technical calculation by the technical calculating unit 1021, and the corresponding technical calculation is performed.

  The technical calculation result 1063 obtained by executing the technical calculation by the technical calculation means 1021 is transmitted from the technical calculation request processing means 1022 to the requesting client terminal device 1010 via the communication means 1023, and the technical calculation result management means 1015. Is accepted and managed. The technical calculation result management means 1015 determines whether or not the technical calculation results 1072 for all the divided subproblems 1053 have been obtained, and when all the technical calculation results 1072 are obtained, all the obtained techniques are obtained. The calculation result 1072 is transferred to the technical calculation result synthesis means 1016, and the technical calculation result synthesis means 1016 synthesizes these technical calculation results 1072 to generate a technical calculation result 1074 for the original problem (overall model). The technical calculation result display means 1017 displays the contents as display information 1075.

  As described above, the technical calculation processing request unit 1013 of the client terminal apparatus 1010 transmits information on the partial models divided by the calculation target dividing unit 1012 to the server apparatus 1020 individually, so that the boundary between the partial models is obtained. Information on the connection relationship regarding the located element is kept secret from the server device 1020. For this reason, it is difficult for the server apparatus 1020 side to reconstruct the entire model to be calculated from the information received from the client terminal apparatus 1010, and information related to the calculation object provided by the user is not easily transmitted to the service provider side.

<Embodiment 2>
Next, as the technical calculation system according to the second embodiment of the present invention, the client terminal device 1010 includes the client-side technical calculation unit 1018 and a part of the divided partial problems (partial models) is not transmitted to the server device 1020. Thus, an example will be described in which disclosure of user-specific information to the server device side is limited and it is difficult to understand the relationship between a plurality of divided partial problems.

  FIG. 6 is a configuration example of a technical calculation system according to the second embodiment of the present invention. In the configuration shown in FIG. 6, portions having the same configurations as those of the first embodiment are denoted by the same reference numerals as those in FIG.

  The technical calculation system according to the second embodiment is characterized in that the client terminal device 1010 includes client-side technical calculation means 1018. A part of the plurality of partial problems (partial models) divided by the calculation object dividing unit 1012 is calculated by the client side technical calculation unit 1018 and the calculation result is calculated by the technical calculation unit 1021 of the server device 1020 By setting the boundary condition as a problem, the technical calculation means 1021 of the server apparatus 1020 can conceal a part of the calculation target information and make it difficult to understand the entire calculation target and information regarding its operation.

  For example, in the example of the block diagram shown in FIG. 5, if the client side technical calculation means 1018 calculates the partial problem related to the integral element 5005, the partial problem related to the constant element 5001 to the gain element 5004 is calculated. In the technical calculation means 1021 of the server device 1020, it is impossible to distinguish whether there is an integral element or whether the calculation service is used with a plurality of values determined in advance in the form of a parameter survey.

  Further, for example, if the sub-problem related to the gain element 5004 and the integral element 5005 is divided into another sub-problem related to the remaining calculation elements, the former sub-problem is assigned to the client-side technical calculation means 1018. Even if the existence of the integration element can be estimated from the history of the technical calculation request to the server device 1020 side, it cannot be distinguished whether the time step size in the calculation of the integration element is large or the gain is large. Can be concealed.

<Embodiment 3>
Next, as a technical calculation system according to the third embodiment of the present invention, an example will be described in which the client terminal device 1010 is provided with the partial problem traceability disturbance unit 1019 so that the relevance between the divided partial problems is difficult to understand.

  FIG. 7 is a configuration example of a technical calculation system according to the third embodiment of the present invention. The technical calculation system according to the third embodiment is characterized in that the client terminal apparatus 1010 includes a partial problem traceability disturbing unit 1019. The sub-problem traceability disturbing means 1019 changes the transmission order of the sub-problems requested to be executed to the server apparatus 1020 irregularly, or randomly replaces the identification numbers assigned to the sub-problems and their constituent elements. This makes it difficult to analyze the original whole problem from the partial problem.

  If such an identification number reassignment operation is repeated many times during the calculation of the time behavior analysis, the server apparatus 1020 side knows all the partial problems received by the technical calculation means 1021 and the calculation results. However, in addition to the connections between the constituent elements of each subproblem, the input and results of the entire technical calculation performed by the user cannot be estimated unless the continuity of initial values, boundary conditions, etc. are matched in detail. It is possible to make it difficult to restore information about the overall model to be calculated and its operation. Furthermore, when there is a degree of freedom in dividing into subproblems, the method of dividing into subproblems is appropriately changed during the calculation of time behavior analysis, and further combined with processing for changing the set of components to be extracted as subproblems As a result, it is possible to make it more difficult to grasp the full extent of the technical calculation that the user is performing on the server device 1020 side.

<Embodiment 4>
Next, as a technical calculation system according to the fourth exemplary embodiment of the present invention, the client terminal device 1010 includes a client-side technical calculation unit 1018 and a partial problem traceability disturbance unit 1019, and the relationship between a plurality of divided partial problems is further increased. An example that makes it difficult to understand will be described.

  FIG. 8 is a configuration example of a technical calculation system according to the fourth embodiment of the present invention. The technical calculation system according to the fourth embodiment includes both the client side technical calculation unit 1018 described in the second embodiment and the partial problem traceability disturbance unit 1019 described in the third embodiment in the client terminal device 1010. Thus, the effects achieved by the second embodiment and the third embodiment are combined, and it is possible to further comprehend the full understanding of the technical calculation that the user is performing on the server device 1020 side.

  As described above, according to these embodiments, the information about the calculation target input by the user of the technical calculation service and the information on the whole model including the boundary condition and the initial condition information are divided into a plurality of partial problems. As a result, some information is concealed, and part of the partial problem is concealed, and the traceability of the partial problem and its elements is disturbed. Therefore, it is difficult to grasp the entire calculation target, and it is possible to improve the confidentiality of sensitive information related to the contents of the examination on the user side regarding the new process of semiconductor manufacturing described above, for example.

  Although the description of the embodiment for carrying out the present invention is finished as described above, the embodiment of the present invention is not limited to these, and various modifications can be made without departing from the gist of the present invention. For example, the connection means between the client terminal device and the server device is not limited to a communication network, and data may be exchanged using a storage medium or the like. In addition, a plurality of server devices capable of executing the same technical calculation are installed, the assignment of partial problems to each server device from the client terminal device side is irregular, or the server device to which the same partial problem is assigned is assigned. You may make it improve the confidentiality of user information further by changing at any time in the middle of calculation.

1010 Client terminal device (client device)
1011 Technical calculation condition setting means 1012 Calculation object dividing means 1013 Technical calculation processing request means 1014 (Client side) communication means 1015 Technical calculation result management means 1016 Technical calculation result synthesis means 1017 Technical calculation result display means 1018 Client side technical calculation means ( Technical calculation means provided by itself)
1019 Partial problem traceability disturbing means (traceability disturbing means)
1020 Server apparatus 1021 Technical calculation means (server side) 1022 Technical calculation request processing means 1023 Communication means 1051 (server side) Communication calculation condition input information 1052 Technical calculation condition setting result (calculation condition setting information, overall model of calculation target)
1053 (partitioned) subproblem (partial model)
1054 Disturbed (partitioned) sub-problems 1055 Technical calculation request 1056 Technical calculation request (secured) 1057 Technical calculation request (to client-side technical calculation means) 1058 (by client-side technical calculation means) Technical calculation result 1061 Technical calculation request (to the server side technical calculation means) 1062 Temporary model (of the technical calculation request to the server side technical calculation means) 1063 Technical calculation result (by the server side technical calculation means) 1064 (Client terminal device) Technical calculation result 1065 Technical calculation result 1071 (Security-processed) Technical calculation result 1071 Technical calculation result 1072 (Effect of disturbance processing) Technical calculation result 1073 (Effect of disturbance processing is removed) 1073 (For calculation result synthesis) Multiple technical calculation results (calculations for partial models) result)
1074 Technical calculation results for the entire model (calculation results)
1075 Display information of technical calculation result

Claims (8)

The client device that sends the calculation condition setting information to the server device, performs the technical calculation, and receives the result from the server device, the calculation target that is input in advance is the entire calculation target model that constitutes the calculation condition setting information. configuration, boundary conditions, a step of dividing into multiple partial models based on the initial conditions, the whole model including an integral element that requires an initial condition, summing element, integration element, constant element, the gain element Dividing the group configured by at least one or a combination thereof and the group configured by the integration element set as an initial condition or an already calculated result as an initial condition ;
The client device requesting the server device to execute technical calculation for each of the divided partial models while concealing the connection relationship of the elements located at the boundary between the partial models;
The client device receiving a calculation result returned by the server device that has executed the technical calculation for the required partial model;
The client device synthesizes the calculation results for the plurality of partial models returned from the server device by using connection relations for elements located at boundaries between the partial models, so that the entire calculation target Generating and displaying a calculation result for the model, and a technical calculation method. The technical calculation method according to claim 1,
The technical calculation method further comprising a step of changing a request order when the client device requests the server device to execute a technical calculation for the partial model before the request. In the technical calculation method according to claim 1 or 2,
The technical calculation method, wherein the client device changes identification information of the partial model and elements included therein during calculation of the technical calculation in the server device . In the technical calculation method according to any one of claims 1 to 3,
The client device, for a part of the divided plurality of partial models, executes a technical calculation using a technical calculation means provided in itself, instead of requesting the server device to execute a technical calculation,
When the client device generates a calculation result for the overall model of the object, the calculation result for the plurality of partial models returned from the server device is obtained by using the calculation device provided in the client device. Technical calculation method characterized by combining with the result. The entire model to be calculated to configure the calculation condition setting information at the time of calculated technical computing in the server device, input in advance of the calculation target configuration, boundary conditions, calculation of dividing into multiple partial models based on the initial conditions A target splitting means , comprising an entire model including an integral element that requires an initial condition, a group constituted by at least one of an addition element, an integration element, a constant element, a gain element, or a combination thereof, and an initial condition or A calculation object dividing means for dividing the above-described calculation results into groups configured by integral elements set as initial conditions ;
Sending calculation condition setting information for each of the divided partial models to the server device and requesting the server device to execute a technical calculation while concealing the connection relation of elements located at the boundary between the partial models Technical calculation processing request means,
By combining the calculation results for the plurality of partial models returned from the server device using the connection relationship for the elements located at the boundaries between the partial models, the calculation results for the calculation target overall model A client apparatus comprising: a technical calculation result synthesis means for generating The client device according to claim 5, wherein
Either changing the transmission order of the partial models when requesting the server device to execute the technical calculation for the partial models, or changing the partial models and the identification information of the elements included therein during the calculation A client device, further comprising traceability disturbance means for performing one or both of them. The client device according to claim 5 or 6,
For some of the divided partial models, the server apparatus is provided with client side technical calculation means for executing technical calculation by itself without requesting the server device to execute technical calculation,
When generating calculation results for the target overall model, combining the calculation results obtained by using the client side technical calculation means together with the calculation results for the plurality of partial models returned from the server device. Feature client device. A client device according to any one of claims 5 to 7,
A technical calculation system comprising: a server device that performs technical calculation on a partial model requested from the client device.

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