JP2001125803A - Simulation system and simulation method and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simulation system for restoring a device to be simulated to a safe state even when the target device performs an abnormal operation due to simulation, and for executing continuous simulation of plural simulation data. SOLUTION: This simulation device 10 is provided with an information processor 11 for executing simulation of a device 1 to be simulated, a monitoring device 41 for deciding the start of the sampling of an input signal, and for deciding the start of the output of a simulation signal, a reset means 54, a comparing means 53 for comparing the result data of the simulation with verification data, and a simulation data setting means 55 for setting plural data. Thus, it is possible to execute simulation while comparing data under a set comparison condition, and to execute the comparison of even serial communication data by simulation. Also, it is possible to execute the sampling of a signal from the device to be simulated in a satisfactory timing, and to execute simulation of the device to be simulated in a satisfactory timing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simulation system for outputting a pseudo signal to a device to be simulated for simulation, a simulation method, and a recording medium storing a program for executing the simulation method.

[0002]

2. Description of the Related Art Conventionally, a simulation device disconnects a real device during a simulation, makes a connection to a device to be simulated for simulation, and then supplies a pseudo signal from the simulation device. A simulation is being performed.

However, in the conventional simulation apparatus, only the simulation is performed. If the simulation results in an abnormal operation of the CPU or the abnormal operation of the simulated apparatus due to a software bug or the like, When the operator turns off the power of the target device, the abnormal state is released.

Further, in the conventional simulation apparatus, simulation data is set for each simulation, and a simulation cannot be continuously performed using a plurality of simulation data.

When a simulation is performed using an actual machine, the counter value of the CPU inside the actual machine is shifted by one unit of the counter depending on the start timing of the simulation. In addition, the timing of the signal of the portion depending on the operation of the device is slightly shifted for each simulation. Furthermore, since the sampling time of the simulation device is short, the data of the simulation result slightly differs every time. When this result data is compared with the conventional comparison method, although there is no problem as a result of the simulation, it does not match the reference data to be compared,
There are cases where comparison is not possible. As described above, the conventional simulation apparatus only compares the data of the files to be compared, and cannot perform the comparison in accordance with the comparison conditions.

When data is serial communication data, data in byte units and data defined in bit units are mixed. When these data are compared and verified collectively, it is determined that the data is normal. Was a problem.

Further, it is necessary to sample a signal from the device to be simulated with good timing, and to perform a simulation with good timing for the device to be simulated.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to enable a device to be simulated to return to a safe state without the need for a special operation by an operator, even if the target device operates abnormally by simulation. It is to provide a simulation system.

It is another object of the present invention to provide a simulation system capable of executing a continuous simulation on a plurality of simulation data without requiring a special operation by an operator.

Another object of the present invention is to provide a simulation system in which the simulation can be interrupted or stopped as needed during the execution of the simulation.

[0011] Further, by providing a simulation system, a simulation method, and a recording medium storing a program for executing the simulation method, in which a comparison condition is set, and a simulation can be executed while comparing under the set comparison condition. is there.

It is another object of the present invention to provide a simulation system capable of performing comparison by simulation even for serial communication data in which data in byte units and data defined in bit units are mixed.

Still another object of the present invention is to enable the simulation system to sample a signal from a device to be simulated with good timing, and to perform a simulation with good timing for the device to be simulated.

[0014]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a simulation for a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit. Simulation execution means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral unit based on an input signal from the simulated device or a signal from the simulation system. And monitoring means for determining the start of sampling of the input signal.

According to this simulation system,
When sampling a signal from the device to be simulated, sampling can be started with good timing while monitoring.

Further, the monitoring means determines the start of the output of the pseudo signal, whereby the pseudo signal can be sent to the central processing unit or the peripheral part of the device to be simulated with good timing. Can be executed with good timing.

The present invention is also a simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit.
Simulation executing means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral unit based on an input signal from the simulated device or a signal from the simulation system, and starting output of the pseudo signal Monitoring means for determining.

Further, by further comprising a decision condition setting means for setting decision conditions for the monitoring means, arbitrary conditions can be set, and sampling and simulation can be executed under these decision conditions.

Further, the apparatus further comprises data creation setting means for setting the contents of each data so as to create simulation data and verification data based on the input signal sampled from the simulated device and creating each data. As a result, simulation data for executing the simulation and verification data corresponding to the simulation data can be created.

[0020] Further, data of a result of a simulation executed based on the simulation data is obtained,
By further providing a comparing means for comparing the obtained result data with the verification data and verifying the same, it is possible to determine whether the simulation result is correct by comparing the simulation result with the verification data. Can be detected.

Further, the apparatus further comprises reset means for resetting the simulated device on the basis of the result of the comparison and verification by the comparing means. The simulated device can be returned to a safe state without the need for a simple operation.

In this case, the reset means turns off / on the power of the simulated device, turns off / on the power of the peripheral portion, and sends a reset signal to the central processing unit of the simulated device. At least one of sending can be performed.
As a result, the simulated device returns to a safe state. The reset unit may be configured to function for a portion of the simulated device determined to have a defect based on the result of the comparison and verification.

The present invention is also a simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit,
Simulation executing means for outputting a pseudo signal to the central processing unit or the peripheral unit to execute a simulation, and a simulation for setting a plurality of simulation data for the simulation and setting verification data corresponding to each of the simulation data Data setting means.

According to this simulation system,
Since a plurality of simulation data and verification data corresponding to each of the plurality of simulation data can be set, a continuous simulation can be performed on the plurality of simulation data without a special operation by an operator.

Further, time information relating to the simulation execution is determined based on the set simulation data and the verification data set corresponding to the simulation data, and the time information is sent to the simulation data setting means. By further providing time information determining means that can be set, the time information between the simulation data and the verification data is determined, and when it is determined that the simulation is completed, the determination result is set as the simulation end time in the simulation executing means. Can be.

In this case, it is preferable that the apparatus further comprises an ending means for ending the simulation operation based on the time information determined by the time information determining means.

Further, by further providing data verification means for verifying that the contents of data necessary for executing the simulation are correct, it is possible to prevent abnormal operation in the simulated device by simulation.

When it is determined by the data verification means that at least one of the simulation data and the verification data has a defect, the simulation is skipped and a simulation is performed based on the next simulation data. I can do it.

When the data verification means determines that at least one of the simulation data and the verification data has a defect, the apparatus further comprises a recording means for recording the data of the defect or a display means for displaying. Is preferred.

[0030] Further, it is possible to further comprise an end determining means for judging the end of the simulation and ending the execution of the simulation.

Further, by further providing an interruption / stop unit for sending interruption stop information for interrupting or stopping the execution of the simulation to the end determination unit, the simulation can be stopped arbitrarily and restarted after the interruption. be able to. This is convenient when a simulation is continuously performed using a plurality of simulation data.

The present invention is also a simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit.
Simulation executing means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral portion; a first data file of a simulation result obtained by executing the simulation; and a second data file for verifying the simulation result. First designating means for designating a data file; second designating means for designating comparison conditions for comparing the content of the designated first data file with the content of the second data file; Data comparison means for performing the comparison under the set comparison conditions.

According to this simulation system,
It is possible to compare the result data of an arbitrary simulation with the verification data for verifying the simulation, set a comparison condition for this comparison, and execute the simulation while comparing under the set comparison condition.

According to the present invention, a first designating means for designating a first data file relating to a simulation result and a second data file relating to simulation verification, and the contents of the designated first data file And second specification means for specifying a comparison condition for comparing the contents of the first data file with the contents of the second data file. This is a simulation system for comparing the contents of a data file with a comparison condition specified by the second specifying means.

According to this simulation system,
Since the first data file related to the simulation result and the second data file related to the simulation verification are compared under the specified comparison condition, the simulation result can be easily verified.

In addition, by setting the comparison condition to time data and its allowable value, the simulation execution means has a short sampling time and the simulation start timing is shifted as in the prior art. Even if the result data is slightly different each time, since the comparison is performed within the allowable time range, the result data cannot be compared with the verification data to be compared.

Further, the contents of each data file can be specified by the first specifying means in accordance with the comparison condition item specified by the second specifying means.

Then, the data comparison means performs a comparison corresponding to the designated item of the comparison condition,
Since only the data necessary for the verification can be designated from the verification data, the time for the comparison and verification can be reduced, and the comparison result can be easily understood.

Further, the apparatus may further include display means for displaying a result of comparison by the data comparing means. In this case, it is possible to display, on the display means, the data that did not match as a result of the comparison.

[0040] Further, a recording means for recording the result of comparison by the data comparing means may be further provided. In this case, it is possible to record, on the recording unit, the data that does not match as a result of the comparison.

When the content of each data file is serial communication data, the content of the serial communication data can be separated into data to be compared in byte units and data to be compared in bit units. Thereby, serial communication data can be compared in byte units or bit units.

In this case, when comparing in the byte unit, the comparison can be performed before and after the data.
This makes comparison possible even when retransmitting communication data, which is preferable.

When the comparison is performed on a bit basis, timing data can be created from the data, and the comparison can be performed based on the timing data. The comparison can be made by timing data such as time chart data.

According to the present invention, there is provided a simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit.
Simulation executing means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral unit based on an input signal from the simulated device or a signal from the simulation system, and sampling from the simulated device Data creation for setting the contents of each data and creating each data so as to create simulation data and verification data based on the input signal or data generated from another system that generates operation data of the simulated device Setting means.

The present invention is also a simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit,
Simulation executing means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral unit based on an input signal from the simulated device or a signal from the simulation system, and sampling from the simulated device Data creation for setting the contents of each data and creating each data so as to create simulation data and verification data based on the input signal or data generated from another system that generates operation data of the simulated device A setting unit; and a comparison unit configured to execute a simulation to obtain result data, compare the obtained result data with the verification data, and perform verification.

In this case, it is preferable that the result data is data of a simulation executed in the simulation system or data of a simulation executed in a device virtually constructed in another computer system.

Further, the present invention is a simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit,
Simulation execution means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral part based on an input signal from the simulated device or a signal from the simulation system, and a comparison verification result of the comparison means Reset means for resetting the device to be virtually built in the simulated device or another computer system based on the above.

The simulation may be performed on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, or on a computer virtually constructed in another computer system. It can be executed for a simulation device.

It is preferable that the first data file is a data file of a simulation result obtained by executing a simulation, and the second data file is a verification data file for verifying the simulation result.

Also, the simulation method of the present invention
A first specifying step of specifying a first data file relating to a result of the simulation and a second data file relating to verification of the simulation; and contents of the specified first data file and contents of the second data file. And a second specifying step of specifying a comparison condition for comparing the contents of the first data file and the contents of the second data file specified in the first specifying step. Performs comparison under the comparison conditions specified in the specified step.

According to this simulation method, the first data file relating to the simulation result and the second data file relating to the simulation verification are compared under the specified comparison condition, so that the simulation result can be easily verified.

In this case, the simulation is virtually constructed on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, or in another computer system. It can be executed for the device to be simulated.

It is preferable that the first data file is a data file of a simulation result obtained by executing a simulation, and the second data file is a verification data file for verifying the simulation result.

Further, the recording medium of the present invention has a first specifying step of specifying a first data file relating to a result of a simulation and a second data file relating to verification of a simulation; A second specifying step of specifying a comparison condition for comparing the contents of the file with the contents of the second data file,
A program for executing a simulation method for comparing the contents of the first data file and the contents of the second data file specified in the first specifying step with the comparison conditions specified in the second specifying step Is stored. With this recording medium, the above-described simulation method can be executed.

In this case, the simulation is virtually constructed on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, or in another computer system. It can be executed for the device to be simulated.

It is preferable that the first data file is a data file of a simulation result obtained by executing a simulation, and the second data file is a verification data file for verifying the simulation result.

[0057]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the present embodiment. The simulation system 10 of FIG. 1 is configured to output a pseudo signal to the simulated device 1 to check the operation of the simulated device 1. The simulated device 1 has a central processing unit 2 having a predetermined program and a CPU or the like executing the program, and a first peripheral as a reading system including a sensor or the like and detecting various information. It has a unit 3 and a second peripheral unit 4 as an output system including, for example, a motor that performs various operations in accordance with instructions from the central processing unit 2 based on the detection information.

The first peripheral portion 3 may include a plurality of sensors and the like, and the second peripheral portion 4 may include a motor, a solenoid, an LED, and the like. Note that a CPU or the like in another device electrically connected to the central processing unit 2 may be used as a peripheral portion of the device to be simulated. Further, the simulation can be performed even in a state where only the central processing unit is included in the device to be simulated (a state where there is no peripheral portion). Further, the central processing unit may have both a reading system peripheral unit and an output system peripheral unit.

The simulation system 10 is provided from a personal computer (PC) or the like which receives a signal from the first peripheral unit 3 of the simulated device 1 and outputs a pseudo signal to the central processing unit 2 and the second peripheral unit 4. An information processing apparatus 11 is provided as configured simulation execution means.

The information processing apparatus 11 includes a signal input section 12 connected to the first and second peripheral sections 3 and 4 of the simulated apparatus 1 for inputting a predetermined signal, and a clock signal generating section for outputting a reference clock signal. 13, a pseudo signal output unit 15 for outputting a pseudo signal for simulation at a timing based on a reference clock signal based on a signal from the signal input unit 12, a signal input from the signal input unit 12, and a simulation result. And a storage device 9 such as a hard disk or a RAM for storing necessary information. The signal input unit 12 receives signals from the peripheral units 3 and 4,
The signal output from the pseudo signal output unit 15 is input.
The reference signal from the clock signal generator 13 can be used as a reference for the signal input timing in the signal input unit 12 in addition to being used as a reference for the output timing of the pseudo signal in the pseudo signal output unit 15.

The signal input unit 12 and the pseudo signal output unit 15
May be provided in plurality corresponding to the plurality of peripheral portions, respectively.
Further, the information processing apparatus 11 has a trigger function of collecting data by triggering when certain conditions are met during data collection (sampling). The storage device 9
For example, a magnetic recording medium such as a floppy disk or an optical recording medium such as an optical disk may be used, and the information processing apparatus 11 can include a drive unit for these recording media.

Further, the information processing apparatus 11 includes the signal input unit 1
A monitoring device 41 for monitoring and determining the start of sampling of the input signal in 2 and the start of output of a pseudo signal for simulation in the pseudo signal output section 15; input means for setting conditions for determination in the monitoring device 41; And a display device 43 that can display data, simulation results, and other necessary information for the monitoring device 41 and the like.

In the setting device 42, the signal input unit 12
The contents of each data can be set so as to create simulation data for simulation based on the input signal and the like sampled in the above, and verification data for verifying whether a simulation result executed by the data is correct. A plurality of simulation data and a plurality of verification data corresponding to the simulation data can be set. The simulation data is the pseudo signal output unit 1
5 is the data of the pseudo signal output from 5.

Further, as shown in FIG. 1, the simulation system 10 executes a simulation, obtains the result of the simulation as data, compares the obtained result data with the verification data, and verifies the data. A reset unit 54 for executing a reset on the simulated device 1 based on the comparison and verification result of the comparison unit 53.

The reset means 54 turns off and on the power of the simulated device 1, turns off and on the power of the peripheral units 3 and 4, and sends a reset signal to the central processing unit 2 of the simulated device 1. It has become.
In this case, a reset signal is output from the reset means 54 to the device 1 to be simulated. Also, the comparison means 5
The reset means 54 may be configured to function for each part 2, 3 or 4 of the simulated device 1 which is determined to have a defect based on the comparison verification result of No. 3. Further, the configuration may be such that the reset can be executed without depending on the comparison verification result. For example, when the simulation using one simulation data is completed and the next simulation is performed, the reset is performed regardless of the result of the simulation. May always be executed.

When resetting the simulation target device 1 and when starting the simulation operation, the reset means 54 executes a part of the simulation system shown in FIG.
May be reset.

The simulation system 10 further includes:
Simulation data setting means 55 for setting a plurality of simulation data for simulation and setting a plurality of verification data corresponding to each simulation data, and contents of data (simulation data, verification data, etc.) necessary for executing the simulation. For example, the simulation time from the start of the simulation to the end of the simulation execution is determined based on the data verification means 56 for verifying correctness, and the plurality of set simulation data and the plurality of verification data set respectively corresponding thereto. A time information determining means 57 for setting the simulation time in the simulation data setting means 55; and an end determination for determining the end of the simulation and ending the execution of the simulation A stage 58, terminates the interruption stop information for interrupting or stopping the simulation execution determination means 58
And a suspending / stopping means 59 for sending to the user. The simulation time determined by the time information determination means 57 is a maximum time in the simulation data and the verification data, a time obtained by adding a predetermined time to the maximum time, and a time obtained by adding a predetermined time to the maximum time. And so on. The interruption / stop unit 59 also functions to end the simulation operation based on the determination by the time information determination unit 57.

The termination determining means 58 can set the termination time of the execution of the simulation and the termination time of the output of the pseudo signal, and determine the termination based on the set termination time.

The simulation data setting means 5
The signal input unit 12 and the pseudo signal output unit 15 can be set to a predetermined state based on the simulation data set in step 5 and stored in the storage unit 9 and transmitted from the storage unit 9. For example, I / O channel settings and serial communication protocol settings. Further, as described above, the information processing apparatus 11 can be configured to be initialized (reset) based on the simulation data stored in the storage unit 9.

Further, simulation data setting means 5
5, a first data file for designating a first data file of a simulation result of executing the simulation and a second data file for verifying the simulation result
And second designating means for designating a comparison condition for comparing the contents of the designated first data file and the contents of the second data file. Perform a comparison under conditions. This comparison condition is time data and its allowable value.

Next, the execution of the simulation method using the simulation system 10 of FIG. 1 will be described with reference to FIG. First, a plurality of simulation data for simulation and a plurality of verification data respectively corresponding to each simulation data are set by the simulation data setting means 55 (S01).
The simulation data and the verification data can be set by the setting device 42 based on data sampled by the signal input unit 12 from the simulated device 1,
Further, it can be set based on the data stored in the storage device 9. When sampling is performed by the signal input unit 12, the start of sampling is determined by monitoring by the monitoring unit 41, so that sampling can be started in a timely manner.

Further, when the simulated device 1 is operated normally, sampling is performed, verification data is created from data obtained by the sampling, and data for creating simulation data is created. Then, a part of data for generating the simulation data is corrected and rewritten to generate simulation data (pseudo signal).
Further, data for generating the above-described simulation data may be used as the simulation data.

Next, a plurality of simulation data are output as pseudo signals from the pseudo signal output unit 15 to the simulated device 1 in the set order, the simulation is performed, and the result data of the simulation is obtained (S02). . When the pseudo signal is output from the pseudo signal output unit 15, the output of the pseudo signal is determined and output by monitoring by the monitoring unit 41. In this way, a pseudo signal can be sent with good timing while being monitored by the monitoring means 41.

Next, the comparison means 53 compares and verifies the simulation result data with the verification data. If it is determined that the simulation operation in the simulated device 1 is correct and the result data is correct (S03), the end determination means 58 It is determined whether or not the simulation has been completed (S05), and if there is next simulation data, the process returns to step S01 and the same steps are repeated.

If it is determined in step S03 that the simulation operation in the simulated device 1 is not normal and the result data is not correct, a reset signal is output from the reset means 54 to the simulated device 1 to execute the simulation. The central processing unit 2 and the peripheral units 3 and 4 in the abnormal state are returned to the normal state (S04). Next, the process proceeds to step S05,
It is determined whether or not the simulation ends (S0
5). In this case, when the simulation is interrupted or stopped, the interrupting / stopping unit 59 sends the interruption stop information to the end determining unit 58, so that the simulation can be interrupted or stopped. If interrupted, the simulation can be resumed afterwards.

After the simulated device 1 is reset by the reset means 54, the simulated device 1 is initialized by giving predetermined signals (serial signal, digital signal) to the simulated device 1 at a predetermined timing. Can be set to a simulation executable state.

A program for executing the above-described steps in FIG. 2 can be stored in a recording medium, and the reading device of the storage device 9 of the information processing apparatus 11 can read the program from the recording medium and execute the program. in this case,
Various known recording media can be used, such as a magnetic recording medium such as a floppy disk, an optical recording medium such as a CD,
Examples include, but are not limited to, magneto-optical recording media, hard disks (HDDs), and RAMs.

Note that the simulation data and the verification data can also be created based on data generated from another system that generates operation data of the device. Examples of a system that generates operation data of the device include a system that automatically generates operation data based on design information and a system that generates operation data from an input (created) timing chart. A system for generating operation data from the input timing chart will be described with reference to FIG.

FIG. 5 is a timing chart 25 of the following operation timing data stored in a file for the main motor, paper feed motor, and paper feed PS of the copying machine in the above-described system. , 26, 27 with the horizontal axis representing time. As shown in FIG. 5, for example, operation data can be generated by changing the time display from the following timing chart data input to the system.

Main motor: -5, 1, 0, 1, 45, 1 Feeding motor: 0, 1, 0, 1, 35, 0, 45, 0 Feeding PS: 0, 0, 5, 1, 30 , 0,45,0

Next, referring to FIG. 3, a description will be given of a data comparison in which the simulation is executed as shown in FIG. 2, the operation timing of the simulated device 1 is recorded, and the result data is compared with the verification data by the comparison means 53. . As shown in FIG. 3A, for example, when a first data file of a simulation result obtained by executing a simulation is obtained as input data 1 to 6, verification data 1 to 6 corresponding to these input data 1 to 6 are obtained. 6 is set by the setting device 42, respectively, and the input data 1, 3, and 6 are specified by the first specifying means of the simulation data setting means 55, and these are compared with the verification data 1, 3, and 6 by the comparing means 53. Verify.

At the time of this comparison, the second specifying means of the simulation data setting means 55 specifies and sets an allowable value of the time data. That is, as shown in FIG.
When comparing the input data 1 of the result data with the verification data 1, the allowable values -α and + α of the time are set for the result data 1 and the comparison is performed at the time t1 of the verification data 1.
The time of the result data is compared and verified within the range of t1 ± α. This is preferable because even if the timing of sampling or the start of simulation is slightly shifted, comparative verification can be performed without any problem.

In the case where a central information processing device (CPU) is separately used as a peripheral portion on the simulated device 1 side, serial communication in which bit-unit information and byte-unit information coexist. The case of exchanging data between CPUs will be described with reference to FIG. As shown in FIG. 4A, when bit information and byte information are mixed in the serial communication data, the byte data and the bit data are compared, for example, by the comparing means 53 of FIG. The information can be separated into bit-unit information of FIG. 4C and byte-unit information of FIG. 4D. The data b7 to b0 created in bit units are as shown in FIG.
As described above, chart data can be generated for each bit and compared with verification data. In this case, it can be set so that comparison verification is performed except for b4 and b2 in the verification data.

In the case of data in byte units, FIG.
As shown in (d), when comparing the result data with the verification data using data in byte units, the comparison can be performed before and after the data in time. As a result, comparison is possible even when retransmitting communication data.

It is to be noted that the data (simulation result data, verification data, etc.) in each of the above-described comparative verifications can be verified in advance by data verification means, whereby abnormal operation in the simulated device 1 can be anticipated. Can be prevented. Further, when such a defect is found as a result of verification, it can be displayed on the display device 43 or stored in the storage device 9.
Such a defective simulation can be skipped, aborted, and another simulation performed next.

Further, the simulation result data is as follows:
In addition to the data from the simulation system as shown in FIG. 1, the data may be data from a system that performs simulation using a machine virtually created on a computer system without using an actual machine as a device to be simulated.

Although the present invention has been described with reference to the embodiments, it should be understood that the present invention should not be construed as being limited to the above embodiments, and that modifications and improvements can be made as appropriate. is there. For example, the device to be simulated
There may be more than one, and the type is not particularly limited.

[0088]

According to the present invention, there is provided a simulation system capable of returning a device to be simulated to a safe state without the need for a special operation by an operator even when a target device operates abnormally by simulation. it can.

Further, it is possible to provide a simulation system capable of executing a continuous simulation for a plurality of simulation data without requiring a special operation by an operator.

Further, it is possible to provide a simulation system in which the simulation can be interrupted and stopped as needed during the execution of the simulation.

Further, it is possible to provide a simulation system, a simulation method, and a recording medium in which a program capable of executing the simulation method is stored, in which a comparison condition is set, and a simulation can be executed while comparing under the set comparison condition.

Further, it is possible to provide a simulation system capable of performing comparison by simulation even for serial communication data in which data in byte units and data defined in bit units are mixed.

Further, in the above-mentioned simulation system, it is possible to provide a simulation system capable of sampling a signal from the simulated device with good timing and performing a simulation with good timing on the simulated device.

[Brief description of the drawings]

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

FIG. 2 is a flowchart for explaining a basic operation of the simulation system of FIG. 1;

FIG. 3 is a diagram ((a), (b)) for explaining an operation in a case of comparing and verifying simulation result data and verification data in the simulation system of FIG. 1;

FIG. 4 is a diagram (a), (b), (c), and (d) for explaining an operation when comparing and verifying simulation result data and verification data with serial communication data in the simulation system of FIG. 1; ).

FIG. 5 is a diagram for describing a system that generates operation data from a timing chart input in the present embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Device to be simulated 2 Central processing unit, CPU 3 1st peripheral part (reading system) 4 2nd peripheral part (output system) 9 Storage device (storage means) 10 Simulation system 11 Information processing device (simulation execution means) Reference Signs List 12 signal input unit 13 clock signal generation unit 15 pseudo signal output unit 41 monitoring device (monitoring unit) 42 setting device (decision condition setting unit, data creation setting unit) 43 display unit (display unit) 53 comparing unit 54 reset unit 55 simulation Data setting means 56 Data verification means 57 Time information judgment means 58 End judgment means 59 Interruption / stop means

Claims (40)

[Claims] 1. A simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, comprising: Simulation executing means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral unit based on an input signal or a signal from the simulation system; and monitoring for determining a start of sampling of the input signal A simulation system comprising: 2. The simulation system according to claim 1, wherein said monitoring means determines the output start of said pseudo signal. 3. A simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, comprising: Simulation executing means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral part based on an input signal or a signal from the simulation system, and a monitoring means for deciding to start outputting the pseudo signal When,
A simulation system comprising: 4. The simulation system according to claim 1, further comprising decision condition setting means for setting decision conditions for said monitoring means. 5. A data creation setting means for setting contents of each data so as to create simulation data and verification data based on the input signal sampled from the simulated device and creating each data. The simulation system according to claim 1, 2, 3, or 4. 6. The simulation system according to claim 5, further comprising: comparing means for acquiring result data of a simulation executed based on the simulation data, comparing the acquired result data with the verification data, and performing verification. . 7. The simulation system according to claim 6, further comprising: reset means for resetting the simulated device based on a comparison verification result of the comparison means. 8. The resetting unit turns off / on the power of the simulated device, turns off / on the power of the peripheral unit, and sends a reset signal to a central processing unit of the simulated unit. The simulation system according to claim 7, wherein at least one of the following is performed. 9. A simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, wherein the central processing unit or Simulation execution means for outputting a pseudo signal to the peripheral portion to execute a simulation, and simulation data setting means for setting a plurality of simulation data for the simulation and setting verification data corresponding to each of the simulation data. Simulation system equipped. 10. A time information relating to a simulation execution is determined based on the set simulation data and a plurality of verification data respectively set corresponding to the simulation data, and the time information is sent to the simulation data setting means. The simulation system according to claim 9, further comprising a time information determination unit that can be set. 11. The simulation system according to claim 9, further comprising a data verification unit that verifies that contents of data necessary for executing the simulation are correct. 12. When the data verification unit determines that at least one of the simulation data and the verification data has a defect, the execution of the simulation is skipped and the simulation is performed based on the next simulation data. The simulation system according to claim 11. 13. When the data verification unit determines that at least one of the simulation data and the verification data has a defect, the data verification unit further includes a recording unit that records data of the defect or a display unit that displays the defect data. Item 13. The simulation system according to item 11 or 12. 14. The simulation system according to claim 1, further comprising an end determination unit that determines the end of the simulation and ends the execution of the simulation. 15. The simulation system according to claim 10, further comprising ending means for ending a simulation operation based on the time information determined by said time information determining means. 16. The simulation system according to claim 14, further comprising an interruption / stop unit that sends interruption stop information for interrupting or stopping the simulation execution to the end determination unit. 17. A simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, wherein the central processing unit or Simulation executing means for outputting a pseudo signal to the peripheral portion to execute a simulation; designating a first data file of a simulation result obtained by executing the simulation and a second data file for verifying the simulation result; First
Designation means, and second designation means for designating a comparison condition for comparing the content of the designated first data file with the content of the second data file; and performing the comparison under the designated comparison condition. A simulation system comprising: 18. A first method relating to a result of the simulation.
First designating means for designating a data file and a second data file related to simulation verification; and a comparison condition for comparing the content of the designated first data file with the content of the second data file. Second designating means for designating, wherein the contents of the first data file and the contents of the second data file designated by the first designating means are designated by the second designating means. Simulation system that performs comparisons under the set comparison conditions. 19. The simulation system according to claim 17, wherein the comparison condition is time data and an allowable value thereof. 20. The simulation system according to claim 17, 18 or 19, wherein the content of each data file is designated by said first designation means in accordance with an item of a comparison condition designated by said second designation means. . 21. The simulation system according to claim 20, wherein said data comparison means performs a comparison in accordance with the designated comparison condition item. 22. The simulation system according to claim 17, further comprising display means for displaying a result of comparison by said data comparison means. 23. The simulation system according to claim 17, further comprising recording means for recording a comparison result by said data comparison means. 24. The simulation system according to claim 22, wherein the display unit displays the data that did not match as a result of the comparison. 25. The simulation system according to claim 23, wherein data that is inconsistent in the comparison result is recorded in the recording unit. 26. When the content of each data file is serial communication data, the content of the serial communication data is separated into data to be compared in byte units and data to be compared in bit units. The simulation system according to claim 1. 27. The simulation system according to claim 26, wherein when comparing in the byte unit, the comparison is performed before and after the data. 28. The simulation system according to claim 26, wherein in the case of performing the comparison in bit units, timing data is created from the data, and the comparison is performed based on the timing data. 29. A simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, comprising: Simulation execution means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral unit based on an input signal or a signal from the simulation system; and the input signal or the input signal sampled from the device to be simulated. Data creation setting means for setting contents of each data so as to create simulation data and verification data based on data generated from another system for generating operation data of the simulation apparatus, and creating the data. You Simulation system. 30. A simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, comprising: Simulation execution means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral unit based on an input signal or a signal from the simulation system; and the input signal or the input signal sampled from the device to be simulated. Data creation setting means for setting the contents of each data so as to create simulation data and verification data based on data generated from another system for generating operation data of the simulation apparatus and creating each of the data; And a comparison unit that executes the application and obtains the result data, compares the obtained result data with the verification data, and performs verification. 31. The simulation system according to claim 30, wherein the result data is data of a simulation executed in the simulation system or data of a simulation executed in a device virtually constructed in another computer system. 32. A simulation system for executing a simulation on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, comprising: Simulation executing means for executing a simulation by outputting a pseudo signal to the central processing unit or the peripheral part based on an input signal or a signal from the simulation system; and the simulation target based on a comparison verification result of the comparing means. A resetting unit for resetting a device virtually constructed in a simulation device or another computer system. 33. The simulation is performed on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, or a device virtually constructed in another computer system. 18. The method according to claim 17, which is performed on a simulation device.
33. The simulation system according to any one of to 32. 34. The method according to claim 18, wherein the first data file is a data file of a simulation result obtained by executing a simulation, and the second data file is a verification data file for verifying the simulation result. The simulation system according to claim 1. 35. A first method relating to the result of the simulation.
A first designation step of designating a data file of the second data file and a second data file relating to simulation verification; and a comparison condition for comparing the content of the designated first data file with the content of the second data file. A second specifying step of specifying, wherein the contents of the first data file and the contents of the second data file specified in the first specifying step are specified in the second specifying step. Simulation method for performing comparisons under comparison conditions. 36. The simulation is performed on a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, or a virtual system constructed on another computer system. 36. The method according to claim 35, performed on a simulation device.
The simulation method according to 1. 37. The method according to claim 35, wherein the first data file is a data file of a simulation result obtained by executing a simulation, and the second data file is a verification data file for verifying the simulation result. The described simulation method. 38. The first method according to the result of the simulation.
A first designation step of designating a data file of the second data file and a second data file relating to simulation verification; and a comparison condition for comparing the content of the designated first data file with the content of the second data file. A second specifying step of specifying, wherein the contents of the first data file and the contents of the second data file specified in the first specifying step are specified in the second specifying step. A recording medium storing a program for executing a simulation method for performing comparison under comparison conditions. 39. The simulation is performed for a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit, or for a computer virtually constructed in another computer system. 39. The simulation is performed on a simulation device.
A recording medium according to claim 1. 40. The method according to claim 38, wherein the first data file is a data file of a simulation result obtained by executing a simulation, and the second data file is a verification data file for verifying the simulation result. The recording medium according to the above.