KR0149308B1 - System self-test device and control method - Google Patents

Abstract

In order to provide a system self-diagnosis apparatus and a control method thereof capable of outputting data on a device and type of an error occurrence and a working environment of the system using an error signal when an operating state of the control system is abnormal, A control system for performing a corresponding operation according to data input / output operations to an internal device and an operation of a built-in control device; Connected with the control system, when the operation state of the control system is abnormal state determines the cause of the failure according to the signal state applied from the control system and outputs the corresponding data, the system diagnosis operation is required from the outside or the operation of the control system Self-diagnosing means for outputting a control signal to check the operation state of the control system and outputting the corresponding data when it is stopped; A central control means connected to the self-diagnostic means, for outputting corresponding data by outputting a diagnostic operation request signal to the self-diagnosis means for checking an operation state of the control system; It is connected to the self-diagnostic means, it comprises a data output means for outputting data generated in accordance with the operation of the self-diagnostic means.

Description

System self-diagnosis device and control method thereof

1 is a block diagram of a system self-diagnostic apparatus according to an embodiment of the present invention.

2 and 3 are operational flowcharts of a system self-diagnostic control method according to an embodiment of the present invention.

4 is a block diagram for checking a control signal generation state.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system self-diagnostic apparatus and a method thereof. In particular, when the state of an operating system is determined to be an abnormal state, an apparatus and a cause of occurrence of an abnormal state may be output to perform an accurate and quick operation diagnosis. The present invention relates to a system self-diagnosis apparatus and a method thereof.

As various kinds of operations are performed and processing operations become more diverse and complicated, periodical checks on the operation status of the system can solve problems caused by malfunctions.

Therefore, after generating a diagnostic signal every set period, the operation state of the system is checked, and the corresponding result is output to the outside according to the checked error level, or the system is stopped to protect the system.

In order to perform the self-diagnostic operation as described above, the self-diagnostic apparatus is operated by periodically generating a signal periodically during a system operation performing the operation through the operation of the software.

Therefore, the signal periodically generated as shown in FIG. 4 is input to the input terminal T of the T flip-flop 100.

If a signal is not input to the input terminal T because a periodic signal that should be generated due to abnormal operation is not generated, the state of the output terminal Q is changed to L, which is a low level, to recognize the operating state of the system as an abnormal state. To help.

As described above, when the occurrence state of a signal that periodically generates during system operation is checked, if a corresponding signal is not detected, a check result signal is output.

In addition, if a very fatal error occurs in the system while the system is operating, the system stops the operation by outputting a signal to stop the system operation to protect the system.

When the system operation is stopped due to the fatal error occurring during the operation as described above, in order to remove the cause of the error that occurred in the system, it is possible to find and eliminate the cause using a separate program and debugging (debugging) device.

However, the cause check operation as described above is only to determine the abnormal state of the system, there is a problem that a lot of time and labor loss occurs in determining the cause of the abnormal operation.

Another self-diagnostic device is a method of adding a program capable of performing a self-diagnostic operation in an operating system.

When the self-diagnosis program is embedded in the operating system as described above, when the system diagnosis request signal is input from the outside or the system is in an abnormal state, the self-diagnosis program embedded in the operating system is executed to find the cause of the problem. Make it possible to resolve.

However, the operation of the self-diagnosis program embedded in the operating system as described above is not operated when the operation of the system is stopped due to a fatal error.

Therefore, a problem arises that the cause of the problem is solved by rechecking the state of the system using an external self-diagnostic program and a debugging device as described above.

Therefore, an object of the present invention is to solve the above-mentioned conventional problems, and when an operating state of a control system is abnormal, an error signal can be used to output data on the device and type of error occurrence and the working environment of the system. It is to provide a system self-diagnostic apparatus and a control method thereof.

The configuration of the present invention for achieving the above object,

A control system for performing a corresponding operation according to data input / output operation to an external or internal device and operation of a built-in control device;

Connected to the control system, and when the operation state of the control system is abnormal state determines the cause of the failure according to the signal state applied from the control system, and outputs the corresponding data,

Self-diagnostic means for outputting a control signal to check the operation state of the control system and outputting corresponding data when a system diagnostic operation is required from the outside or when the operation of the control system is stopped;

A central control means connected to the self-diagnostic means, for outputting corresponding data by outputting a diagnostic operation request signal to the self-diagnosis means for checking an operation state of the control system;

It is connected to the self-diagnostic means, it comprises a data output means for outputting data generated in accordance with the operation of the self-diagnostic means.

Another configuration of the present invention for achieving the above object,

Updating the data concerning the working environment of the control system every set time;

Determining whether there is an abnormality in a signal generated in the control system;

Determining the cause of an error that is determined to be an error state when an error is found and outputting the corresponding data;

When the cause of the error is a driving signal that is abnormally output, the step of determining the type of the abnormally output driving signal and outputs data on each signal state.

Another configuration of the present invention for achieving the above object,

Updating the data concerning the working environment of the control system at each set time;

Determining whether an operation diagnosis request signal of the control system has been input from the central control apparatus;

When the diagnostic request signal is input, reading a state of the input diagnostic request signal, outputting a control signal for checking the corresponding device through a bus to the control system and checking an operation state of the corresponding device;

Outputting data according to a check operation of the apparatus to a data output means; When the operation diagnosis request signal of the control system is not input from the central control device, determining whether the control system is down;

When the state of the control system is in the down state, sequentially outputting the stored control signals to the control system and sequentially checking the operation state of each corresponding device;

And outputting data according to a check operation of the corresponding device to a data output means.

Hereinafter, with reference to the accompanying drawings will be described embodiments of the present invention;

1 is a block diagram of a system self-diagnostic apparatus according to an embodiment of the present invention, and FIG. 2 and FIG. 3 are operational flowcharts of a system self-diagnostic control method according to an embodiment of the present invention.

Looking at the configuration of the present invention with reference to FIG.

A system main body 1 which executes input / output operations of data according to the operation state and each set control operation,

It is connected to the system main body 1, and a magnetic, diagnostic unit 51 for diagnosing the operating state of the system main body 1,

A central control unit 61 connected to the self-diagnosis unit 51 and configured to diagnose an operating state of the system main body 1 or check a working environment;

It consists of a data output unit 71 in series with the self-diagnostic unit 51 and capable of outputting the corresponding data.

The system body 1,

A central processing unit 11 for controlling the operation of the system,

A memory control unit 21 for storing necessary data during the operation of the central processing unit 11 or controlling a reading operation of stored data via a system bus 10;

A memory 22 which executes a recording / reading operation of the data in accordance with the operation of the memory controller 21;

Input / output control unit for outputting data output from the central processing unit 11 through the input / output bus 20 to the corresponding device, and inputs data input from the external processing unit to the central processing unit or the memory 22. With 31,

An input / output device 32 connected to the input / output control unit 31 so as to externally execute input / output operations of the corresponding data;

It is composed of an input / output expansion slot 41 to be connected to the expansion bus 30 to further expand the input / output device.

The operation of the present invention made as described above is as follows.

When power required for each operation is supplied and the operation of the self diagnosis unit 51 starts (S10), the self diagnosis unit 51 stores the operating environment of the system main body 1 at a set time (S11). The corresponding diagnostic operation is executed according to the state of the signal generated in (1) or the state of the control signal input from the central control unit 61.

First, referring to FIG. 2, when an abnormality occurs in the operation of the system main body 1 during operation, the operation of the self-diagnosis unit 51 will be described.

The following is a case of determining the operating state of the system as an abnormal state.

(1) If a failure occurs in the power supply unit supplying power to the system, or if the temperature of a specific part of the system rises above the set temperature,

(2) When the transmission operation is stopped during the signal transmission operation of each corresponding bus 10 to 30,

(3) When a signal that should occur periodically on the bus does not occur,

(4) When a request signal for the self-diagnosis operation is input from the central control unit 61 or an external device,

The signal that should occur periodically in step 3)

An address strobe signal and a ready signal RDY # of the system bus 10,

Internal connector flame signal FRAME # and ready signal RDY # of the input / output bus 20, and the bus clock signals supplied to the system bus 10, the input / output bus 20, and the expansion bus 30. And clock signals supplied to each device.

As described above, when a signal necessary for operation of the system main body 1 does not occur for each set period, the self-diagnosis unit 51 is an error state that occurs during the operation of the system main body 1 and thus the system main body 1 Is due to an unstable state of the power supplied during the operation of or at abnormal temperature of a specific site; It is determined whether the abnormal state according to (S13).

However, if the signal generated from the system main body 1 operates normally, the self-diagnosis unit 51 determines whether a data request signal capable of determining the operation state of the system is input from the central control unit 61 (S14).

Therefore, when a request signal for determining the operation state of the system main body 1 is input from the central control unit 61, the self-diagnostic unit 51 updates the data corresponding to the system environment updated at every set time in step S11. Is read and output to the central control unit 61 (S15).

Data for confirming the state of the system main body 1 when a request signal relating to an operation state of the current system main body 1 is input from the external central control unit 61 connected to the self-diagnostic unit 51 as described above. Since is transmitted, it is possible to determine the operation state of the desired system from the outside.

However, in order to check the power state or temperature rise problem supplied to the system main body 1 in the step S13, the system main body 1 periodically checks the power state or temperature state of a specific part and then satisfies the set condition. If not, the corresponding signal is output to the self-diagnosis unit 51 to detect a power supply state and an abnormal temperature rise phenomenon.

However, if it is determined that the power state of the system main body 1 or the temperature state of a specific device is normal, the self-diagnosis unit 51 stores the data on the respective buses 10 to 30 installed in the system main body 1. It is determined whether an error signal is output during the transmission operation (S16).

In order to check the operation state, the self-diagnosis unit 51 periodically checks the state of the input / output signals through the buses 10 to 30 of the system main body 1.

Therefore, if it is determined that an abnormality in the power supply state or a temperature of a specific site rises or a problem occurs in the data transmission on each corresponding bus among the errors occurring during the operation of the system main body 1, the self-diagnosis unit 51 determines The cause of the generated error is outputted to the data output unit 71 (S17).

Therefore, the external user can check the error state that occurs during the operation of the system main body 1 through the data output through the data output unit 71.

After outputting the data on the error state through the data output unit 71 as described above, the self-diagnostic unit 51 outputs data about the working environment of the system from an external control device such as the central control unit 61. It is determined whether a signal is input (S18).

When the request signal is input, the self-diagnosis unit 51 outputs data on the environment of the system main body 1 updated in the step S11 to the corresponding control device (S19).

Therefore, it is possible to easily analyze and process the cause and location of the error by using the data on the environmental state of the system main body 1 to be output.

If there is no separate data request signal from the external control device, the self-diagnosis unit 51 returns to the main program (S100).

However, if the error occurring during the operation of the system main body 1 is not an abnormality in the power supply, a temperature rise problem at a specific site, or an error condition occurring during transmission, the self-diagnosis unit 51 should occur periodically during system operation. In operation S100, it is determined whether an error state due to the occurrence of a clock signal or the like is caused.

The determination operation is to determine whether or not a periodic signal is generated by inputting each corresponding signal periodically generated in the system main body 1 to the T-flop flop as in the related art, by using an output signal that is varied when each corresponding signal is not generated.

Therefore, when an abnormality occurs in the system operation due to the non-occurring operation of the control signal according to the operation of the T flip-flop as described above, the self-diagnosis unit 51 outputs the corresponding data to the data output unit 71 (S102), It is possible to determine the cause of the error of the system main body 1 by the abnormal output operation of the control signal.

In operation S103, it is determined whether an error has occurred in the system operation due to the non-occurrence of each corresponding clock signal.

If an error occurs due to the non-occurring operation of the clock signal, the self-diagnosis unit 51 outputs data about the clock signal immediately before an error occurs in the system operation among the data periodically updated in the step (S). (S104), the process returns to the main program (S100).

However, if the error state is not due to the abnormal state of the clock signal, the self-diagnosis unit 51 determines whether the system error state due to the occurrence of the control signal such as the address strobe signal or the ready signal (S105).

Therefore, when it is determined that a system error occurs due to the non-occurrence of a control signal rather than a clock signal, the self-diagnosis unit 51 outputs the state of the activated signal immediately before the error occurs to the data output unit 61 ( S106).

Therefore, by using each signal state, it is possible to determine the signal maintaining the abnormal state.

However, when it is not possible to determine the signal in which an error occurs, the self-diagnosis unit 51 cannot determine which signal is an abnormally operating signal, and thus outputs data indicating only an error state due to an unconfirmed signal. After outputting through the unit 61 (S107), the process returns to the main program (S100).

However, if the cause of the error occurring during the system operation cannot be determined by the operation of the step (S13, S16, S101), the self-diagnosis unit (5) is the data output unit 61 only in the error occurrence state as in the step (S107) After outputting through (S108), it returns to the main program (S100).

Therefore, when an abnormal state occurs in the system main body 1, the self-diagnostic unit 51 can check the corresponding data according to the operation state of the system main body 1 through the above operation, and thus cause an error. It can be easily seen from the outside, and each relevant data is output so that the error occurrence area can be checked quickly so that the cause of the error can be eliminated.

Next, the operation of the self-diagnosis unit 51 will be described with reference to FIG. 3 when the self-diagnosis request signal is input from the outside or when the operation of the system main body 1 is down during operation.

First, when power required for operation is supplied and operation starts (S20), the self-diagnosis unit 51 updates data corresponding to the working environment of the system main body 1 every set time (S21).

The self-diagnostic unit 51 determines whether a request signal for checking the operation state of the system main body 1 is input from the central control unit 61 connected to the outside (S22).

Therefore, when the self-diagnosis request signal is input, the self-diagnosis unit 51 reads the state of the request signal input from the central control unit 61 (S23), and sets the type of the request signal.

When the request signal for the self-diagnosis operation is set as described above, the self-diagnosis unit 51 checks the operation state of the corresponding device of the system main body 1 set through the buses 10 to 30 connected to each other (S24). .

Then, the operation state of the device operated by the self-diagnosis unit 51 is outputted to the data output unit 71 so as to determine whether it is a normal state or an abnormal state (S25), and then the process returns to the main program. (S100).

However, when the self-diagnosis request signal is not input from an external control device such as the central control unit 61 connected to the self-diagnostic unit 51, the self-diagnostic unit 51 determines whether the operation of the system is down (S26). .

When the input / output operation of the corresponding signal is not performed on each of the connected buses 10 to 30, the self-diagnosis unit 51 determines the system main body 1 to be in a down state.

Therefore, when it is determined that the operating system is in the down state, the self-diagnosis unit 51 sequentially checks each device of the system main body 1 by the operation already stored (S27), and then outputs the result data to the data output unit. Output to 71 (S28).

Even when the system in operation as described above is operated, the corresponding device is operated through each bus line connected to the system main body 1 by the operation of the self-diagnostic unit 51 to determine the cause of the system failure. can do.

Therefore, the effects of the present invention operating as described above, when the error occurs in the operating system, and determines the occurrence state and cause of the error, and outputs, it is possible to check the error occurrence position and cause easily and quickly, the system state is normal Can return to state.

And even when the system is stopped due to a fatal error, it is possible to check the operation state of each device through the operation of the self-diagnostic control unit through each connected bus line.

Therefore, when the operation of the system is stopped, it is possible to determine the cause of the error and the corresponding device by checking the state of the system, so there is no need to use a separate diagnostic program or debugging device.

Claims (5)

A control system for performing a corresponding operation according to data input / output operations to an external or internal device and an operation of a built-in control device; It is connected to the control system, and monitors the signal generated from the control system to determine the cause of the error when an error is found and outputs the corresponding data, and when the system diagnosis operation is required from the outside or the operation of the control system is stopped, Self-diagnostic means for outputting to check the operation state of the control system and outputting the corresponding data; A central control stage connected to the self-diagnostic means, for outputting a diagnostic operation request signal to the self-diagnostic means for checking the operation state of the control system and outputting corresponding data; A system self-diagnostic apparatus connected to the self-diagnostic means and comprising data output means for outputting data generated by the operation of the self-diagnostic means; The method of claim 1, wherein the self-diagnostic means updates the working environment of the control system at predetermined time intervals, determines whether there is an abnormality in a signal generated by the operating control system, and determines the cause of an error when the abnormality is found. Data for each determined cause of the error is output through the data output means, and if the error state occurring in the control system is caused by an abnormal control signal, it is determined whether the corresponding control signal is a clock signal or a driving signal, and each corresponding control is performed. A system self-diagnostic apparatus characterized by outputting data on the state of a signal to a data output means. The self-diagnostic means according to claim 1, wherein the self-diagnostic means updates data concerning the working environment of the control system at every set time, and reads the state of the input request signal when the diagnostic request signal is input from an external central control means. When the control system outputs a control signal capable of checking the operation state of the control system corresponding device, outputs the result to the central control means, and the state of the control system determined by the input / output state of each control signal is down. And outputting a control signal capable of sequentially checking an operation state of a corresponding device of the control system, and outputting a corresponding result to the central control means. Updating the data concerning the working environment of the control system at each set time; Determining whether there is an abnormality in a signal generated in the control system; Determining a cause of an error that is determined according to an error state when an error is found and outputting corresponding data; If the cause of the error is a drive signal that is abnormally output, the system self-diagnosis method comprising the step of determining the type of the drive signal that is abnormally output and outputting data on each signal state. Updating the data concerning the working environment of the control system at each set time; Determining whether an operation diagnosis request signal of the control system has been input from the central control apparatus; When the diagnostic request signal is input, reading a state of the input diagnostic request signal, outputting a control signal for checking the corresponding device through a bus to the control system and checking an operation state of the corresponding device; Outputting data according to a check operation of the apparatus to a data output means; When the operation diagnosis request signal of the control system is not input from the central control device, determining whether the control system is down; When the state of the control system is in the down state, sequentially outputting the stored control signals to the control system to sequentially check the operation state of each corresponding device; And outputting data according to a check operation of the corresponding device to a data output means.