JPH06295295A - Simulator - Google Patents

Abstract

PURPOSE:To immediately perform correctoin to execute simulation again in the case of difference between the simulation result and an expectation by providing a simulation state storage device and a simulation model generating part. CONSTITUTION:A state storage device 6 which internal information of a simulation execution part 4 is arbitrarily stored in and read out from and a model generating part 7 which synthesizes simulation models are provided. When simulation is executed, a control part 2 stores the information in the state storage device 6 each time the state of the execution part 4 is changed, and an expectation collating part 5 compares a simulation reslt 13 with an expectation 12. A user executes the simulation while using an interface 8 to confirm correct an abnormal value; and if contents of the execution part 4 are changed, the control part 2 transfers the contol to the model generating part 7 to synthesize the simulation models again in accordance with changed contents of the execution part 4, and they are outputted as an output simulation 16 to the outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a simulator,
In particular, it relates to a simulator for predicting events that can occur in a wide range of fields such as natural sciences and industrial fields.

[0002]

2. Description of the Related Art Generally, simulators are used to predict events in a wide range of fields regardless of natural science or industrial systems.

In FIG. 2 showing an example of a conventional simulator, the simulator 1 includes an input simulation model 9 in which a user-created simulation target is stored, and a library in which information necessary for the simulation is stored. 10 and an input test pattern 11 in which the operation procedure of the input simulation model 9 defined by the user is stored, and the simulation information executable by the simulator 1 is stored in the simulation execution unit 4. A function for generating the simulation execution unit generation unit 3 and the simulation execution unit generation unit 3 for actually performing the simulation and outputting the result as a simulation result 13 to the expected value matching unit 5 outside and inside the simulator 1. Simulation with When the contents of the output unit 12 that stores the simulation result output from the execution unit 4 and the simulation result output by the user and the simulation result created by the user are different, the information is abnormally stored outside the simulator 1. An expected value collation unit 5 having a function of outputting the value result 14 and a function of transferring control to the simulation execution unit generation unit 3 and a simulator control unit 2 for overall management of the simulator 1 are provided.

[0004]

In this conventional simulator, when the simulation result and the expected value 12 of the simulation result are different during the simulation, the simulation model 9 and the simulation pattern 11 can be corrected on the spot. could not. Therefore, the simulation time cannot be re-executed by returning the simulation time by an arbitrary value, and a great amount of time is spent until the simulation is ended.

[0005]

The simulator according to the present invention is configured such that a simulation executing means for performing a simulation in the simulator and a simulation state storing means for storing an arbitrary number of states of the simulation executing means at an arbitrary timing. An expected value collating means for comparing a simulation result output from the simulation executing means with a simulation result expected value previously created by the user and outputting the content of the comparison; and a simulation model and a simulation model based on the contents of the simulation executing means. The simulation model generating means for generating a test pattern, which is an operation procedure of the simulation model, and the contents of the simulation executing means are changed by management of the simulator as a whole and a command from a user. And, characterized in that it comprises a simulator control unit having a function of storing the simulation execution means the contents of the simulation status storage means at an arbitrary timing.

[0006]

FIG. 1 shows a simulator according to an embodiment of the present invention.
In the simulator 1, the operation of the input simulation model 9 in which the user-created simulation target is stored, the library 10 in which information necessary for the simulation is stored, and the input simulation model 9 defined by the user The inside of the simulation execution unit 4 and the simulation execution unit generation unit 3 which decodes the input test pattern 11 in which the procedure is stored and stores the simulation information executable by the simulator 1 in the simulation execution unit 4. A simulation state storage device 6 capable of storing and reading an arbitrary number of pieces of information at an arbitrary timing and a simulation / execution unit generation unit 3 generate a simulation and output the result. Simulation result 1
3, the simulation execution unit 4 having a function of outputting to the outside of the simulator 1 and the expected value matching unit 5 inside, the simulation result output from the simulation execution unit 4 and the simulation result created by the user. The simulation output expected value 12 in which the expected value is stored is compared, and if a different portion is generated, an abnormal signal 17 is sent to the simulator control unit 2, and at the same time, the information is output as an abnormal value result 14 to the outside of the simulator 1. The expected value collation unit 5 having a function of outputting, the function of transferring control to the simulation execution unit generation unit 3, and the contents of the simulation execution unit 4 are simulated at arbitrary intervals or whenever the state of the simulation execution unit 4 changes. Abnormal signal 1 from the function stored in the state storage device 6 and the expected value comparison unit 5. If is input, the temporary simulation is interrupted, the contents of the simulation execution unit 4 are changed in accordance with the instruction sent from the user interface 8, and the previous time specified by the user interface 8 from the simulation state storage device 6 is changed. The state of the simulation execution unit 4 for
From the contents of the simulation controller 2 having the function of re-executing the simulation after being stored in the computer and the function of transferring control to the simulation model generator 7, and the content of the simulation executing unit 4, the input simulation model 9
And re-synthesize the same as the input test pattern 11,
Output simulation model 16 and output test
A simulation model generation unit 7 having a function of outputting the pattern 15 to the outside of the simulator 1 is provided.

Further, the simulator 1 is connected with a user interface 8 having a function of exchanging data and commands with the simulator control section 2 in an interactive form with the user.

Next, the operation of this simulator will be described. When the simulator 1 is started, control is transferred to the simulator control unit 2, and the simulator control unit 2 is controlled.
Transfers control to the simulation execution unit generation unit 3,
The simulation execution unit generation unit 3 reads the input simulation model 9, the library 10, and the input test pattern 11, outputs the simulation information executable by the simulator 1 to the simulation execution unit 4, and controls the simulator control unit 2. return.

Next, the simulator control section 2 activates the simulation executing section 4 to start the simulation. At this time, the simulation execution unit 4 and the simulator control unit 2 execute the simulation while exchanging simulation information with each other. Every time the state of the simulation execution unit 4 changes, the simulator control unit 2 sends the information to the simulation state storage device 6
To store. When the simulation is started, the simulation execution unit 4 outputs the result of the simulation as a simulation result 13 to the outside of the simulator 1, and at the same time, outputs the result of the simulation to the expected value matching unit 5.

The expected value collation unit 5 compares the simulation result output from the simulation execution unit 4 with the expected output value 12, and outputs an abnormal signal 17 to the simulator control unit 2 if they do not match. When the abnormal signal 17 is input, the simulator control unit 2 interrupts the processing of the simulation executing unit 4 and outputs the information of the simulation executing unit 4 to the user interface 8. The user can use the user interface 8 to send commands to the simulator control unit 2 to change and read the state of the simulation execution unit 4.

The simulator control unit 2 can read and change the state of the simulation execution unit 4 according to a command from the user interface 8, and the information obtained from the simulator control unit 2 is output to the user interface 8. The user can read this information. After changing and confirming the state of the simulation execution unit 4, the user gives a command to return the simulation time to an arbitrary time and restart the simulation.
It can be sent to the simulator control unit 2 via the interface 8.

The simulator control section 2 reads the state of the simulation execution section 4 from the user interface 8 before the arbitrary time designated by the user from the simulation state storage device 6, sets the contents in the simulation execution section 4, and then executes the simulation execution section. Reboot 4. After restarting the simulation, the simulation execution unit 4
Restarts the simulation based on the contents changed by the user interface 8.

The user uses the user interface 8 to execute the simulation while confirming and correcting the abnormal value of the simulation. By the time the simulation is over,
If the content of the simulation execution unit 4 has been changed, the simulator control unit 2 transfers control to the simulation model generation unit 7, and the simulation model generation unit 7 changes the simulation execution unit 4 using the user interface 8. The simulation model is resynthesized from the contents of 4, and this is output to the outside of the simulator 1 as the output simulation model 16. In addition, the simulation model generation unit 7
Generates the operation procedure of the output simulation model 16 from the contents of the simulation execution unit 4, and outputs this as an output test pattern 15 to the outside of the simulator 1.

[0014]

As described above, according to the simulator of the present invention, when the simulation result and the expected value of the simulation result are different during the simulation, the simulation model and the simulation pattern are immediately corrected on the spot. The simulation time can be returned by an arbitrary value, and the simulation can be re-executed.

Further, according to the simulator of the present invention, when the simulation model and the test pattern are changed, the contents can be output to the outside of the simulator, so that the simulation model and the test pattern can be corrected. There is no need to re-run the simulation after pre-correcting the test pattern and simulation model each time. Therefore, the time required to complete the simulation can be significantly shortened compared to the past.

[Brief description of drawings]

FIG. 1 is a block diagram of a simulator according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional simulator.

[Explanation of symbols]

 1 Simulator 2 Simulator Control Unit 3 Simulation Execution Unit Generation Unit 4 Simulation Execution Unit 5 Expected Value Matching Unit 6 Simulation State Storage Device 7 Simulation Model Generation Unit 8 User Interface 9 Input Simulation Model 10 Library 11 Input Test Pattern 12 Output Expected value 13 Simulation result 14 Outlier value result 15 Output test pattern 16 Output simulation model 17 Abnormal signal

Claims (2)

[Claims] 1. A simulation executing means for performing a simulation in a simulator, a simulation state storing means for storing an arbitrary number of states of the simulation executing means at an arbitrary timing, and a simulation result output from the simulation executing means. An expected value collating means for comparing a simulation result expected value created in advance by the user and outputting the comparison contents, and a simulation model and a test pattern which is an operation procedure of the simulation model from the contents of the simulation executing means. The content of the simulation model generation means to be generated and the contents of the simulation execution means are changed by management of the simulator as a whole and instructions from the user, and the content of the simulation state storage means is arbitrary. And a simulator control unit having a function of storing the simulation execution means at the timing. 2. The simulator according to claim 1, further comprising means for outputting the contents of the simulation model and the test pattern to the outside of the simulator when they are changed.