JP2000259221A - Simulation device, its method and sampling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simulation device/method which can perform both simulation and data input operations without changing the connection between a simulated device and a simulator for the operation of a real device, a simulation operation and a data input/output operation and also can use the inputted data as the pseudo signals for simulation and also to provide a sampling device. SOLUTION: This simulation device is provided with an information processing means 11 having a pseudo signal output part 15 which outputs the pseudo signals to a CPU part 2 or the peripheral parts 3 and 4 of a simulated device 1 and a 1st switching means 16 which is connected to a signal line set between the parts 2 and 3 and performs the switching in response to the control signal received from the means 11 between a 1st state where the part 2 is electrically connected to the part 3 and a 2nd state where the part 2 or 3 is electrically connected to the part 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simulation device for outputting a pseudo signal to a device to be simulated for simulation, a simulation method, and a sampling device.

[0002]

2. Description of the Related Art Conventionally, a simulator disconnects a connection with an actual device at the time of a simulation, makes a connection to a device to be simulated for a simulation, and then gives a pseudo signal from the simulator.
A simulation was being performed. Also, when inputting a signal from the device to be simulated, add a connection for data input to the connection of the actual device, or change the connection from the connection for simulation to the connection for data input, and then input the data. I was Further, such input data and the pseudo signal at the time of simulation are independent, and have no mutual applicability.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to perform simulation and data input without changing the connection between a simulated device and a simulator in an operation, a simulation operation, and a data input operation in a real machine. It is an object of the present invention to provide a simulation device, a simulation method, and a sampling device that can use input data as a pseudo signal for a simulation.

[0004]

In order to achieve the above object, a simulation apparatus according to the present invention comprises a central processing unit for executing a program, and a peripheral unit connected to the central processing unit via a signal line. A simulation device for simulating a device to be simulated having: a data processing unit having a pseudo signal output unit for outputting a pseudo signal to the central processing unit or the peripheral unit; and the central processing unit and the peripheral unit. A first state provided on the signal line between the central processing unit and the central processing unit and the peripheral unit, and the central processing unit or the peripheral unit and the pseudo signal output unit. A first switching unit that can switch between a second state of electrical connection based on a control signal from the information processing unit. To.

According to the present invention, the first state and the second state are switched by the first switching means based on the control signal from the information processing means.
It is not necessary to change the connection of signal lines when performing a simulation or the like for the device to be simulated. Can be done easily. The peripheral portion is a member connected via a signal line to a central processing unit such as a CPU for executing a program, and has a read system and an output system. The peripheral part of the reading system is a part that gives an information signal to the central processing unit, that is, the central processing unit acquires an information signal from the peripheral part, and is, for example, various sensors. The peripheral part of the output system is a part to which a drive signal is given from the central processing unit, that is, a part driven based on a drive signal from the central processing unit. For example, a motor, a solenoid, an LED, or the like is there. Further, as a peripheral part, there is a central processing unit such as another CPU having both a reading system and an output system and exchanging information signals (for example, serial signals and parallel signals) with another central processing unit.

Further, the information processing means outputs a pseudo signal from the pseudo signal output section when the first switching means is in the first state, and switches the first switching means from the first state. The control signal for switching to the second state is output to the first switching means.
According to this, when the pseudo signal for the simulation is output, the control signal is output to the first switching means to be in the second state, so that the switching can be automatically performed and the second state can be surely performed. As a result, a pseudo signal can be output to the central processing unit or the peripheral unit, and malfunction prevention can be realized.

The information processing means outputs the pseudo signal from the pseudo signal output section when the first switching means is in the first state, and then switches the first switching means from the first state. A control signal for switching to the second state is output to the first switching means. According to this, it is possible to more reliably output the pseudo signal to the central processing unit or the peripheral portion as the second state, and it is possible to further prevent malfunction.

[0008] The present invention is also characterized in that there is provided a first forced selection means capable of maintaining the first switching means in the first state regardless of a control signal from the information processing means. According to this, when the first state is forcibly selected by the first forcible selecting means, the first state operates as a safety means. Even if the control signal is erroneously output from the information processing means due to noise or the like, the second state is obtained. Since the state is not switched, the operation of the central processing unit can be confirmed.

In addition, the apparatus further comprises a temporary signal output section for outputting a temporary signal simulating a signal from the peripheral section, wherein the temporary signal output section is electrically connected to the first switching means in place of the peripheral section. Characterized by being connected to According to this, the simulation can be performed even when the peripheral portion is not connected or when there is no peripheral portion.

A third state in which the peripheral portion is electrically connected to the first switching means, and a fourth state in which the temporary signal output section is electrically connected to the first switching means. It is characterized by further comprising second switching means capable of switching between the state and the state. According to this, the temporary pseudo signal output from the temporary signal output after being switched to the fourth state by the second switching unit can be input to the central processing unit or the peripheral unit via the first switching unit in the first state. .

Further, the second switching means can switch between the third state and the fourth state based on a control signal from the information processing means. Irrespective of the second switching means, the second switching means can be maintained in the third state. Thus, the second forced selection means operates as a safety means in the same manner as the first forced selection means described above, and can prevent erroneous operations of peripheral parts and the like.

Further, the information processing means has a signal input unit to which a signal from the central processing unit or a signal from the peripheral unit is input. By inputting a signal to this signal input unit, data sampling can be performed, and connection for simulation can be confirmed.

The information processing means outputs a signal obtained by modifying the signal input from the signal input section as a pseudo signal from the pseudo signal output section,
Outputting a control signal for switching the first switching means to the second state. Thus, it is possible to perform a simulation using a pseudo signal corrected to a predetermined signal by the signal correction unit based on the signal input to the signal input unit.

[0014] In addition, it is possible to switch between a fifth state in which the peripheral section and the signal input section are electrically connected and a sixth state in which the pseudo signal output section and the signal input section are electrically connected. Further comprising a third switching means capable of
When the third switching means is in the first state, the third switching means is controlled such that the third switching means is in the fifth state. Thus, in a state where the central processing unit and the peripheral unit are connected to each other, the fifth switching unit performs the fifth switching.
By inputting a signal from the central processing unit or the peripheral unit to the signal input unit in the state, data can be acquired in a state where the simulated device is actually operating.
As a result, it is possible to confirm the actual signal from the central processing unit or the peripheral unit.

[0015] Further, it is possible to switch between a fifth state in which the peripheral portion is electrically connected to the signal input portion and a sixth state in which the pseudo signal output portion is electrically connected to the signal input portion. A third switching unit capable of controlling the third switching unit to set the third switching unit to the sixth state when the first switching unit is in the second state. Features. Thus, in a state where the central processing unit or the peripheral unit and the pseudo signal output unit are connected, the sixth state is set by the third switching unit, and the pseudo signal from the pseudo signal output unit is also input to the signal input unit. This makes it possible to acquire all operation data and the like while performing simulation in the central processing unit or the peripheral part.

The device to be simulated has a plurality of peripheral portions, and the first device corresponds to the plurality of peripheral portions.
And a plurality of the signal input units are provided, and the information processing unit is configured to provide a first signal corresponding to a signal that has not been corrected among a plurality of signals input from the plurality of signal input units.
And outputting a control signal for switching the switching means to the first state. Thereby, the peripheral part corresponding to the uncorrected signal is connected to the central processing unit, performs the actual operation of the simulated device, and the other peripheral part corresponding to the corrected signal is the corrected signal. Can be simulated.

The device to be simulated has a plurality of peripheral portions, and the first device corresponds to the plurality of peripheral portions.
And a plurality of the signal input units are provided, and the information processing unit is configured to provide a first signal corresponding to a signal that has not been corrected among a plurality of signals input from the plurality of signal input units.
The switching means outputs a control signal for switching to the second state, and outputs the uncorrected signal as a pseudo signal from the pseudo signal output unit. As a result, a simulation can be performed using the uncorrected signal. Therefore, the simulation can be performed in the peripheral portion without changing the signal from the device to be simulated, and the simulation using the corrected signal described above can be performed in the other peripheral portion by performing the simulation using the corrected signal.

The device to be simulated has a plurality of peripheral portions, a plurality of the signal input portions are provided corresponding to the plurality of peripheral portions, and sampling of signals input from the plurality of signal input portions is performed. It is characterized in that it is performed based on a reference clock. According to this, when a plurality of input signals are sampled, the sampling is performed with the reference clock, so that sampling can be performed at the same reference time, and the sampling of the plurality of input signals can be performed accurately in time. Can be done.

Further, the simulated device has a plurality of peripheral portions, and the first switching means and the pseudo signal output portion and / or the signal input portion correspond to the plurality of peripheral portions. A plurality of pseudo signals are provided, and the output of the pseudo signal from the pseudo signal output unit and the sampling of the signal input from the signal input unit are operated by clocks corresponding to respective standards. According to this, not only the sampling of the input signal but also the output of the pseudo signal is performed by the reference clock, so that the pseudo output signal can be output at the same reference time, and the sampling of the input signal and the output of the pseudo output signal are time-dependent. Done exactly.

Further, the central processing unit can perform at least one of output of a drive signal, acquisition of an information signal, and transmission and reception of an information signal to the peripheral portion.

Further, the simulation method of the present invention comprises:
A simulation method in which a central processing unit that executes a program simulates a device to be simulated that performs at least one of output of a drive signal, acquisition of an information signal, and transmission and reception of an information signal to a peripheral unit via a signal line Reading a signal when the simulated device is outputting a drive signal, acquiring an information signal, or transmitting and receiving an information signal to and from the peripheral unit by the central processing unit, and correcting the read signal. The simulation is performed by outputting a signal to which the signal is added as a pseudo signal to the central processing unit or the peripheral unit.

According to the present invention, a simulation can be performed based on a signal obtained by modifying a signal obtained by outputting a drive signal between a central processing unit and a peripheral unit, acquiring an information signal, or transmitting and receiving an information signal.

The device to be simulated has a plurality of peripheral portions, and the central processing unit performs output of a drive signal, acquisition of an information signal, or transmission and reception of information to each of the plurality of peripheral portions. Read each signal when the signal is read, and a signal obtained by modifying the read signal, and a signal obtained by not modifying the read signal as a pseudo signal, the central processing unit or the peripheral unit And simulate it. Thus, since the simulation can be performed using both the corrected signal and the uncorrected signal, the simulation can be performed using the signal from the device to be simulated, and the simulation can be performed using the signal obtained by correcting the signal.

Also, the simulated device has a plurality of peripheral portions, and the central processing unit outputs a drive signal, obtains an information signal, or transmits / receives information to each of the plurality of peripheral portions. While reading each signal, and outputting a signal obtained by correcting the read signal to the central processing unit or the peripheral unit as a pseudo signal, and does not perform correction on the read signal. The output, acquisition, or transfer of signals between the central processing unit and the peripheral unit corresponding to the generated signal can be simulated using signals from the central processing unit and the peripheral unit. Thus, a simulation can be performed in a peripheral portion or the like with the signal from the device to be simulated as it is, and a simulation using a correction signal can be performed in another peripheral portion or the like by adding the simulation using the above-described correction signal.

The device to be simulated has a plurality of peripheral portions, and the central processing unit performs output of a drive signal, acquisition of an information signal, or transmission and reception of an information signal to each of the plurality of peripheral portions. When reading each of the signals, the sampling of the plurality of signals is performed based on the respective reference clocks. Thus, the sampling of a plurality of signals such as the drive signal and the information signal can be operated by the reference clock, and the sampling of the plurality of input signals can be accurately performed in time.

Further, when the simulated device has a plurality of peripheral portions and the simulated device is being simulated, the simulated signal is output to the central processing unit and / or the peripheral portion while outputting the simulated signal. A signal is sampled from the central processing unit and / or the peripheral unit which does not output the signal, and the output of the pseudo signal and the sampling of the signal are respectively performed based on a reference clock. As a result, not only the sampling of the input signal but also the output of the pseudo signal is performed by the reference clock, so that the sampling of the input signal and the output of the pseudo output signal are accurately performed in time.

Further, the reference clock is the same clock. Thus, the above-described sampling and output can be performed with reference to the same clock.

Further, in the sampling device of the present invention, the central processing unit for executing the program includes:
For a sampled device that outputs a drive signal to a plurality of peripheral units, obtains an information signal, or transmits and receives an information signal, a sampling device that samples a signal between the central processing unit and the plurality of peripheral devices. The sampling of a plurality of signals between the central processing unit and the plurality of peripheral devices is performed based on a reference clock, respectively.

According to the present invention, sampling of a plurality of signals from a sampled device can be performed by a reference clock, so that sampling of a plurality of input signals can be accurately performed in time. Note that an information processing unit for information processing may be provided, and the information processing unit may have a trigger function of sampling data by triggering when a certain condition is satisfied.

Further, the reference clock is the same clock. Thus, the above-described sampling can be performed with reference to the same clock. In addition, a central processing unit that executes a program simulates a simulated device that outputs a drive signal, obtains an information signal, or transmits and receives an information signal to a plurality of peripheral units via signal lines. In the apparatus, while outputting a pseudo signal to the central processing unit and / or to any of the plurality of peripheral units,
A signal between the central processing unit and the plurality of peripheral units is sampled, and the output of the pseudo signal and the sampling of the signal are performed based on a reference clock. As a result, not only the sampling of the input signal but also the output of the pseudo signal is performed by the reference clock, so that the sampling of the input signal and the output of the pseudo output signal are accurately performed in time.

Further, the reference clock is the same clock. Thus, the above-described sampling and output can be performed with reference to the same clock.

[0032]

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 device 10 of FIG.
Is configured to output a pseudo signal to the simulated device 1 to check the operation of the simulated device 1. This simulated device 1
Is a central processing unit 2 including a CPU and the like having a predetermined program and executing the program, and a first as a reading system including a sensor or the like and detecting various information.
Peripheral unit 3 and central processing unit 2 based on this detection information
And a second peripheral portion 4 as an output system including, for example, a motor for performing various operations in accordance with instructions from the user. The first peripheral portion may include a plurality of sensors and the like, and the second peripheral portion 4 may include a motor, a solenoid, and an LED. 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).

The simulation device 10 comprises a personal computer (PC) or the like which receives a signal from the first peripheral portion 3 of the device under simulation 1 and outputs a pseudo signal to the central processing unit 2 and the peripheral portion 4. An information processing unit 11 is provided. The information processing means 11 includes: a signal input unit 12 connected to the first and second peripheral units 3 and 4 of the simulated device 1 to receive a predetermined signal; a clock signal generator 13 that outputs a reference clock signal; 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, and a temporary signal output unit 18 for outputting a temporary signal for simulation; And a correction unit 14 for processing and correcting the signal based on the signal from the signal input unit 12, and a storage unit 9 such as a hard disk or a RAM for storing the signal input from the signal input unit 12 and the corrected signal. The correction means 14 can be composed of, for example, input means such as a keyboard of the information processing means 11, and can correct a signal from the keyboard. Signal input 1
2. A plurality of pseudo signal output units 15 and provisional signal output units 18 may be provided corresponding to a plurality of peripheral units, respectively. Also,
The information processing means 11 has a trigger function for collecting data by triggering when certain conditions are met during data collection (sampling). Note that a magnetic recording medium such as a floppy disk or an optical recording medium such as an optical disk may be used as the storage unit 9, and the information processing unit 11 may include a drive unit for these recording media.

The simulation apparatus 10 includes switches 16 and 17 as first switching means whose switching operation is controlled by the first forcible selection means 21 based on a control signal A from the information processing means 11, The switch 19 is controlled based on a control signal B from the information processing means 11 and a switch 19 as a second switching means whose switching operation is controlled by the second forced selection means 22 based on the control signal B from the processing means 11. And a switch 20 as third switching means.

The switch 16 as the first switching means is
A first state in which the central processing unit 2 is connected to input a signal from the first peripheral unit 3, and a pseudo signal output unit 1
The switch 17 is electrically connected to a second state in which a signal from the central processing unit 2 is connected to the second peripheral unit 4. The first state is electrically switched to a second state in which a pseudo signal from the pseudo signal output unit 15 is input to the second peripheral unit 4.

The switch 19 of the second switching means is
A third state in which a signal from the peripheral unit 3 is connected to the central processing unit 2 when the switch 16 is in the first state;
When the switch 16 is in the first state, the switch 16 is electrically switched to a fourth state in which the provisional signal from the provisional signal output unit 18 is connected to be input to the central processing unit 2.

The switch 20 of the third switching means is
A fifth state in which a signal from the peripheral unit 3 is connected to be input to the signal input unit 12 and a sixth state in which a pseudo signal from the pseudo signal output unit 15 is connected to be input to the signal input unit 12 are described. Switch electrically. Next, the operation of the simulation apparatus 10 of FIG. 1 will be described. FIG. 2 shows an example of sampling and simulation that can be performed by the simulation apparatus 10 of FIG. 1 when the simulation target apparatus 1 is a copying machine. In FIG. 2, the main body sensor as a target of the central processing unit is the peripheral part (reading system) in FIG. 1, and the main body load is the peripheral part (output system).

As shown in FIG. No. 1 is data collection (sampling) during a normal copy operation. 2
-1 is a simulation of the peripheral portion 3 (reading system) when the copying machine is idling, 2-2 is a peripheral part 3 of the copying machine
(Reading) simulation. No. No. 3-1 is a simulation when the copier is idling and there is no peripheral portion. 3-2 is a simulation when there is no peripheral portion. No. No. 4-1 is a simulation of the peripheral portion 4 (output system) at the time of idling of the copying machine. 4
Reference numeral -2 denotes a simulation of the peripheral portion 4 (output system) of the copying machine.

First, No. The data collection (sampling) at the time of the normal copy operation 1 will be described. Referring to FIG. 1, switch 16 is in a first state, switch 19 is in a third state, switch 20 is in a fifth state, and switch 17 is in a fifth state.
Are respectively switched to the first state, a signal from a peripheral unit (reading system) 3 such as a sensor is input to the central processing unit 2 and is transmitted from the central processing unit 2 to a peripheral unit (output system) 4 such as a motor. An instruction signal is output. This is a control in a normal copying machine.
3 is input to the signal input unit 12 via the switch 20 in the fifth state. By storing this input signal in the storage unit 9, signals from the peripheral unit (reading system) 3 and the peripheral unit (output system) 4 can be sampled and stored in the storage unit 9. Further, the sampled and stored signal can be corrected (processed) by the correction unit 14, and the corrected signal can be stored in the storage unit 9. Although this sampling is performed in synchronization with the same reference clock from the clock signal generator 13, the sampling may be performed with each clock signal based on the reference clock. Therefore, even if a plurality of signals are input in time series, sampling is performed based on the reference clock, so that time is accurate. Further, when a signal is input to each of the plurality of signal input units, each sampling is performed based on the reference clock, so that each signal can be accurately compared in time.

Next, No. In the simulation of the peripheral portion 3 (reading system) at the time of idling of the copier 2-1 in FIG.
o. Sampling similar to 1 is performed, and operation data at the time of idling can be obtained.

In addition, No. 2-2 peripheral part 3 (reading system)
In the simulation of No. After the same sampling and data collection as in 1 are performed, the switch 16 is set to the second state, the switch 20 is set to the sixth state, and the switch 17 is set to the first state.
By switching to the respective states, a pseudo signal of the signal of the peripheral unit 3 (reading system) is input to the central processing unit 2, and the motor of the peripheral unit 4 is driven by a signal from the central processing unit 2 based on the pseudo signal. The operation and the simulation are performed, and the pseudo signal is input to the signal input unit 12, so that the operation data can be obtained. Note that the switch 19 may be in any of the third state and the fourth state.

Next, No. In the simulation in the case where there is no peripheral portion at the time of idling of the copying machine 3-1 as described above, the switch 16 is switched to the first state, the switch 19 is switched to the fourth state, and the switch 17 is switched to the first state. The temporary signal is input from the unit 15 to the central processing unit 2, and a signal from the central processing unit 2 based on the temporary signal is input to another signal input unit 12a, thereby sampling data and storing the data in the storage unit 9. it can. Note that the switch 20 may be in any state.

In addition, No. In the simulation in the case where there is no peripheral part of 3-2, the switch 16 is switched to the second state, the switch 20 is switched to the sixth state, and the switch 17 is switched to the first state. Is input to the central processing unit 2, and a signal from the central processing unit 2 based on the pseudo signal is input to another signal input unit 12a, and the pseudo signal is input to the signal input unit 12. Can be obtained. Note that the switch 19 may be in any state.
Further, the switch 16 is set to the first state, and the switch 19 is set to the fourth state.
By switching the switches 17 to the first state, the provisional signal is input from the provisional signal output unit 15 to the central processing unit 2, and the signal from the central processing unit 2 based on the provisional signal is input to another signal. By inputting to the unit 12a,
Data can be sampled and stored in the storage unit 9. According to the provisional signal, a process of processing (correcting) the signal for the simulation can be omitted, and the simulation process can be shortened, which is preferable. When there is no peripheral portion, the signal output to the second peripheral portion 4 may be recorded by a timing chart recorder to confirm the signal.

Next, No. In the simulation of the peripheral portion 4 (output system) at the time of idling of the copying machine in 4-1, N
o. Sampling similar to 1 is performed, and operation data at the time of idling can be obtained.

In addition, No. 4-2 Copier Peripheral Part 4
In the simulation of (output system), No. After the same sampling as in step 1 is performed and data is collected, switch 1
6 is switched to the second state, the switch 20 is switched to the sixth state, and the switch 17 is switched to the first state, whereby a pseudo signal is input to the central processing unit 2 and the central processing unit 2 based on the pseudo signal is switched. The motor and the like in the peripheral part 4 operate according to the signal from the
Since the pseudo signal is input to the signal input unit 12, operation data can be obtained. The switch 19 is
The state may be any of the third state and the fourth state. Further, in the above state, by switching the switch 17 to the second state, a pseudo signal is input to the peripheral unit 4 (output system) from another pseudo signal output unit 15a, and the motor or the like of the peripheral unit 4 is connected to the pseudo unit. The simulation is performed by the activation by the signal.

As described above, according to the simulation apparatus 10 of the present embodiment, the switching means 16, 19, 2
By simply switching between 0 and 17, the simulation operation can be easily performed without changing the connection between the simulated device 1 and the simulation device 10.
For this reason, the operation of disconnecting the connection to the simulated device and then separately connecting the simulated device to the simulated device every time the simulation is performed becomes unnecessary, and the simulation can be easily performed. .

Note that the output of the pseudo signal can be synchronized with the reference clock from the clock signal generator 13, so that the pseudo signal can be output to the central processing unit 2 at accurate timing.
, The simulation is temporally accurate, which is preferable.

Also, the signal input unit 12 is
By processing and correcting the signal data based on the signal from the CPU 1, the operation signal that does not actually operate in the simulated device 1 can be output as a pseudo signal, and the central processing unit 2 and the second peripheral unit can be output. 4 to confirm their operation.

In the first state as described above, during the simulation, the signals from the peripheral units 3 and 4 are taken in by the signal input unit 12 and input to the data, so that, for example, the peripheral unit Signals from 3 and 4 can be stored. Thus, signals from the peripheral portion 3 and the like can be arbitrarily confirmed.

Further, 12, 1 of the plurality of signal input units
By inputting the signals from the central processing unit 2 and the peripheral unit 4 to the signal input units other than the signal input unit 2a, it is possible to perform a simulation using uncorrected signals. Therefore,
With the signals input to the signal input units 12 and 12a, the simulation can be performed with the correction signal by the signal correction unit 14, and the simulation can be performed even with the uncorrected signal.

In the present embodiment, the simulated apparatus 1 is a copying machine, a facsimile machine, a printer, a sorter or an A provided in these image forming apparatuses.
DF (recording paper automatic reversing device), other central processing units (C
PU and MPU) are generally considered.

Next, the switches 16, 1 as shown in FIG.
Forcibly selecting the switching of the first switching unit 7
A specific example of the second forcible selection means 22 that can forcibly select the switching of the switch 19 will be described with reference to FIGS.

The first forced selection means 21 shown in FIG.
Has an AND circuit 31 and a switch 32 disposed between the switch 16 of the first switching unit and the information processing unit 11 in FIG. When the control signal A from the information processing means 11 is A
The voltage input to the input terminal 31b of the ND circuit 31 is H (hi)
gh), and when the switch 32 is open, the reference terminal 31
a, the voltage is H (high), so that the output terminal 31
The voltage of c becomes H (high), and the switch 16 switches. Here, when the switch 32 is closed, the reference terminal 3
1a becomes L (low), so that the output terminal 3
1c becomes L (low), and the switch 16 does not switch. In this manner, even if a signal is erroneously output from the information processing means 11, it is possible to prevent the erroneous simulation from being performed by the signal and causing the simulated device to malfunction.

In the example of FIG. 3B, an AND circuit 33 and a confirmation diode 34 are added to the configuration of FIG. 3A. In a state where the control signal A is output but not input to the switch 16 (the voltage of the output terminal 31c of the AND circuit 31 is L (low)), the voltage of the input terminal 33b of the AND circuit 33 is L (low). Since the voltage of the reference terminal 33a is H (high), the voltage of the terminal 33c becomes L (low), and a current flows through the diode 34 to emit light. By the light emission of the diode 34, it can be confirmed that the control signal A is output from the information processing means 11, but the switch 16 has not been switched. Then, since the light from the diode 34 disappears, it can be confirmed that the switch 16 has been switched. The above-mentioned example of the forced selection means is the second forced selection means 2 in FIG.
2 can also be applied.

As described above, the present invention has been described with reference to the embodiments. However, the present invention should not be construed as being limited to the above embodiments, and it is needless to say that the present invention can be appropriately changed and improved. is there. For example, a connector unit may be provided in each of the simulation device and the device to be simulated, and may always be connected by a cord.

[0056]

According to the present invention, simulation and data can be input without changing the connection between the simulated device and the simulator in the operation, simulation operation, and data input operation in the actual machine. A simulation device, a simulation method, and a sampling device that can use data as a pseudo signal for simulation can be provided.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing an example of sampling and simulation that can be performed by the simulation device of FIG. 1 when the device to be simulated is a copying machine, and the states of respective switches.

FIGS. 3A and 3B are diagrams illustrating specific examples (a) and (b) of a forced selection unit of the simulation apparatus of FIG. 1;

[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) 10 Simulation apparatus 11 Information processing means 12 Signal input part 12a Another signal input part 13 Clock Signal generation unit 14 Signal correction unit 15 Pseudo signal output unit 15a Another pseudo signal output unit 16, 17 Switch (first switching unit) 18 Temporary signal input unit 19 Switch (second switching unit) 20 Switch (third switching unit) Switching means) 21 first forced selection means 22 second forced selection means

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification FI FI Theme Court ゛ (Reference) // G05B 17/02 G06F 15/20 D 5H223 (72) Inventor Norio Kayano 2970 Ishikawacho, Hachioji City, Tokyo F term in Konica Corporation (reference) 5B048 AA00 DD07 DD17 5B049 AA01 AA06 EE41 EE56 GG09 5H004 GA21 GB20 LB01 MA06 MA31 MA37 MA47 5H209 AA13 FF06 GG08 HH21 JJ05 5H215 AA13 BB09 CC03 CC09 XX03 CC03 XX03 CC03 CC09 CCX CC

Claims (26)

[Claims] 1. A simulation apparatus for simulating a device to be simulated having a central processing unit for executing a program and a peripheral unit connected to the central processing unit via a signal line, An information processing unit having a pseudo signal output unit that outputs a pseudo signal to a processing device unit or the peripheral unit; provided on the signal line between the central processing unit unit and the peripheral unit, the central processing unit unit; A first state for electrically connecting the peripheral unit and a second state for electrically connecting the central processing unit or the peripheral unit to the pseudo signal output unit;
A first switching unit that can switch between a state and a state based on a control signal from the information processing unit. 2. The information processing unit outputs a pseudo signal from the pseudo signal output unit when the first switching unit is in the first state, and switches the first switching unit from the first state. The simulation apparatus according to claim 1, wherein a control signal for switching to the second state is output to the first switching unit. 3. The information processing unit outputs the pseudo signal from the pseudo signal output unit when the first switching unit is in the first state, and then switches the first switching unit from the first state. The control signal for switching to the second state is changed to the first state.
The simulation apparatus according to claim 1, wherein the output is outputted to the switching means. 4. The apparatus according to claim 1, further comprising a first forcible selection unit capable of maintaining said first switching unit in said first state irrespective of a control signal from said information processing unit. The simulation device according to 1, 2, or 3. 5. A provisional signal output unit for outputting a provisional signal simulating a signal from the peripheral unit, wherein the provisional signal output unit is electrically connected to the first switching unit in place of the peripheral unit. 5. The simulation apparatus according to claim 1, wherein the simulation apparatus is connected to a computer. 6. A third state in which the peripheral portion is electrically connected to the first switching means, and a fourth state in which the temporary signal output section is electrically connected to the first switching means. The simulation apparatus according to claim 5, further comprising a second switching unit that can switch between the state and the state. 7. The second switching means is capable of switching between the third state and the fourth state based on a control signal from the information processing means, and includes a control signal from the information processing means. Regardless of the second
7. The simulation apparatus according to claim 6, further comprising a second forcible selection unit capable of keeping said switching unit in said third state. 8. The information processing means according to claim 1, further comprising a signal input unit to which a signal from the central processing unit or a signal from the peripheral unit is input. A simulation device according to claim 1. 9. The information processing unit outputs a signal obtained by modifying a signal input from the signal input unit as a pseudo signal from the pseudo signal output unit, and outputs the first switching unit to the pseudo switching unit. 9. The simulation apparatus according to claim 8, wherein a control signal for switching to the second state is output. 10. Switching between a fifth state in which the peripheral portion is electrically connected to the signal input portion and a sixth state in which the pseudo signal output portion is electrically connected to the signal input portion. Further comprising a third switching unit capable of controlling the third switching unit so that the third switching unit is set to the fifth state when the first switching unit is in the first state. The simulation device according to claim 8 or 9, wherein: 11. Switching between a fifth state in which the peripheral section and the signal input section are electrically connected and a sixth state in which the pseudo signal output section and the signal input section are electrically connected. A third switching unit capable of controlling the third switching unit to set the third switching unit to the sixth state when the first switching unit is in the second state. 11. The method of claim 8, 9 or 10 wherein:
A simulation device according to claim 1. 12. The device to be simulated has a plurality of peripheral parts, a plurality of the first switching means and a plurality of the signal input parts are provided corresponding to the plurality of the peripheral parts, And outputting a control signal for switching the first switching means corresponding to the unmodified signal among the plurality of signals input from the signal input unit to the first state. , 10 or 11. 13. The device to be simulated has a plurality of peripheral parts, a plurality of the first switching means and a plurality of the signal input parts are provided corresponding to the plurality of the peripheral parts, and the information processing means is A control signal for switching the first switching means to the second state corresponding to a signal that has not been modified among a plurality of signals input from the signal input unit of the above, and the signal that has not been modified 12. The simulation apparatus according to claim 8, wherein the pseudo signal is output from the pseudo signal output unit as a pseudo signal. 14. The device to be simulated has a plurality of peripheral portions, a plurality of the signal input portions are provided corresponding to the plurality of peripheral portions, and sampling of signals input from the plurality of signal input portions is performed. 14. The simulation device according to claim 8, wherein the simulation is performed based on a reference clock. 15. The device to be simulated has a plurality of peripheral parts, and the first switching means corresponds to the plurality of peripheral parts;
A plurality of the pseudo signal output units and / or the signal input units are provided, and the output of the pseudo signal from the pseudo signal output unit and the sampling of the signal input from the signal input unit are performed based on a reference clock, respectively. The simulation apparatus according to claim 8, wherein the simulation is performed. 16. The apparatus according to claim 1, wherein the central processing unit performs at least one of a driving signal output, an information signal acquisition, and an information signal transmission / reception with respect to the peripheral unit.
The simulation device according to the paragraph. 17. A simulated device in which a central processing unit for executing a program outputs at least one of a driving signal, an information signal, and a transmission and reception of an information signal to a peripheral unit via a signal line. In the simulation method for performing simulation, the simulated device reads a signal when the central processing unit outputs a drive signal to the peripheral unit, obtains an information signal, or transmits / receives an information signal, and reads the read signal. A simulation method, wherein a signal obtained by modifying a signal is output as a pseudo signal to the central processing unit or the peripheral unit to perform simulation. 18. The device to be simulated has a plurality of peripheral portions, and the central processing unit outputs a drive signal, obtains an information signal, or transmits and receives information to and from each of the plurality of peripheral portions. Read the respective signals when there is, a signal obtained by modifying the read signal, and a signal obtained by not modifying the read signal as a pseudo signal, the central processing unit or the peripheral unit 18. The simulation method according to claim 17, wherein the simulation is performed by outputting the simulation result. 19. The device to be simulated has a plurality of peripheral portions, and the central processing unit outputs a drive signal, obtains an information signal, or transmits and receives information to and from each of the plurality of peripheral portions. Read each signal when it is, output the corrected signal to the read signal as a pseudo signal to the central processing unit or the peripheral unit, and do not add correction to the read signal 18. The simulation method according to claim 17, wherein the output, acquisition, or transfer of a signal between the central processing unit and the peripheral unit corresponding to the received signal is simulated using signals from the central processing unit and the peripheral unit. 20. The device to be simulated has a plurality of peripheral portions, and the central processing unit performs output of a drive signal, acquisition of an information signal, or transmission and reception of an information signal to each of the plurality of peripheral portions. 18. The method according to claim 17, wherein when each signal is read, sampling of a plurality of signals is performed based on a reference clock.
20. The simulation method according to 18 or 19. 21. A simulated signal while outputting a simulated signal to the central processing unit and / or the peripheral portion when the simulated device has a plurality of peripheral portions and simulating the simulated device. A signal is sampled from the central processing unit and / or the peripheral unit that does not output a signal, and the output of the pseudo signal and the sampling of the signal are each performed based on a reference clock. The simulation method according to claim 17, 18, or 19. 22. The simulation method according to claim 20, wherein the reference clock is the same clock. 23. A central processing unit for executing a program outputs drive signals to a plurality of peripheral units via signal lines;
A sampling device that samples a signal between the central processing unit and the plurality of peripheral devices for a sampled device that acquires an information signal or transmits and receives an information signal, wherein the central processing unit and the plurality of peripheral devices A sampling device wherein sampling of a plurality of signals with the device is performed based on a reference clock, respectively. 24. The sampling device according to claim 23, wherein the reference clock is the same clock. 25. A central processing unit for executing a program outputs drive signals to a plurality of peripheral units via signal lines,
A simulation device for simulating a simulated device that acquires an information signal or transmits and receives an information signal, respectively, while outputting a pseudo signal to the central processing unit and / or any one of the plurality of peripheral units, A simulation device for sampling a signal between a central processing unit and the plurality of peripheral units, and outputting the pseudo signal and sampling the signal based on a reference clock. 26. The simulation apparatus according to claim 25, wherein the reference clock is the same clock.