JPH05324366A - Automatic stop restoring system - Google Patents

Abstract

PURPOSE:To, smoothly and surely restart an operation even if environment abnormality occurs and the operation of a computer mainbody is stopped. CONSTITUTION:A monitoring signal 12 outputted from a sensor kind 11 for detecting environment abnormality is supplied to an automatic stop restoring device 14. When abnormality occurs, the automatic stop restoring device 14 permits OS of the computer mainbody 15 to stop, then, reads prescribed information, saves it in a memory 19 for storing data and stops the power source of the computer mainbody 15. When a state comes to be the normal one, these kinds of saved information are returned to their original places, the operation of OS is started and the operation of the computer mainbody 15 is restarted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic stop / restoration system used to improve the reliability of a computer against environmental abnormalities such as a fire.

[0002]

2. Description of the Related Art With the spread of computers, unmanned computer systems and automatic operation of the systems are increasing. The computer may shut down due to an environmental abnormality. In the past, when a system went down, its cause and status were investigated through file recovery and program re-execution. Then, according to the result of the investigation, a job for recovery is executed to operate the computer system.

[0003]

As described above, the system using such a computer has a problem that the system cannot be quickly restored due to the spread of unmanned operation and automation. Also, there is a problem that a secondary disaster may be caused if the system recovery is delayed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic stop / recovery system capable of quickly recovering a computer system even when the operation of the computer main body is stopped due to an environmental abnormality.

[0005]

According to a first aspect of the invention, (a) a computer main body, and (b) a sensor for monitoring the environmental condition of the computer main body and generating a monitoring signal corresponding thereto ( C) When the monitoring signal of this sensor changes from the normal state to the abnormal state, the predetermined information in the computer main body is saved, and when the monitoring signal changes from the abnormal state to the signal state indicating the normal state, the saved information is stored in the computer. Information saving / restoring means for returning to the main body, and (d) This information saving / restoring means stops the operation of the computer main body after the information is saved, and when the saved information is restored to the computer main body And a main body operation control means for recovering the operation of the automatic stop recovery system.

That is, according to the first aspect of the invention, when the monitoring signal output from the sensor for monitoring the environmental condition changes from the normal condition to the abnormal condition, predetermined information is taken out from the computer main body and saved in the information saving / restoring means. After that, while the operation of the computer main body is stopped, when the monitor signal changes from the abnormal state to the normal state, the saved information is restored and then the operation of the computer main body is started to smooth the operation. Ensure recovery and achieve the above objectives.

According to the second aspect of the invention, the information saving / restoring means saves the information which is being operated at that time after the operating system in the computer main body is stopped. As a result, even in an unmanned system, it is possible to reliably save the necessary information in the computer body.

In the invention according to claim 3, information saving /
After the information saved by the restoring means is restored to the computer main body, the operation of the operating system in the computer main body is started. This allows
Even in an unmanned system, the computer body can be reliably restored.

[0009]

EXAMPLES The present invention will be described in detail below with reference to examples.

FIG. 1 shows the configuration of an automatic stop / restoration system according to an embodiment of the present invention. In this system, the sensors 11 monitor environmental conditions such as temperature, humidity, fire, and earthquake. The monitoring signal 12 output from the sensors 11 is sent to the automatic stop / recovery device 14 via the automatic driving device 13. The automatic stop / recovery device 14 controls the operation and stop of the operation of the computer main body 15.

In order to enable such control, the automatic stop / recovery device 14 has a CPU (central processing unit) 16 and is connected to a program storage memory 18 and a data storage memory 19 through an internal bus 17. ing.
Here, the program storage memory 18 is a storage medium that stores a program for performing various controls of the automatic stop / restoration device 14, and the data storage memory 19 is used when the data operating in the computer main body 15 is predetermined. Is a storage medium for storing in. The data storage memory 19 is composed of a RAM (random access memory) backed up by a battery 21. Therefore, even if the automatic stop / recovery device 14 itself temporarily cuts off its power supply due to environmental changes, the data storage memory 1
The data in 9 can be saved.

FIG. 2 shows the control contents of the automatic stop / recovery apparatus in this automatic stop / recovery system. The CPU 16 in the automatic stop / recovery device 14 sets the control flag to "ON" as an initial setting and monitors the monitoring signal 12 (step S102). The monitor signal 12 is "on" in a normal state and is "off" in an abnormal state. If the monitoring signal 12 is "ON" (Y), it is determined to be a normal state, and only the monitoring operation is performed, and the automatic stop / restoration device 14 does not control the computer body 15 at all.

On the other hand, when the monitor signal 12 is turned off (N), it is judged that an abnormal state has occurred, and the control flag is changed from "on" to "off" (step S10).
3). Then, the operation recovery system is activated (step S
104), and then the OS as the basic software for saving the current operating state of the computer main body 15.
A process of stopping the (operating system) at the present time is performed (step S105). After this processing, all the information necessary for re-execution is saved from the computer main body 15 to the data storage memory 19 in the automatic stop / recovery device 14.

That is, the volatile data stored in the RAM area of the computer main body 15 is first saved in the data storage memory 19 (step S106), and the arithmetic unit information stored in the register or the like in the computer main body 15 is saved. Next, it is read and saved in the data storage memory 19 (step S107). Finally, information about all files such as whether each file is open, closed, or updated is read from the magnetic disk of the computer main body 15 and saved in the data storage memory 19 in the same manner (step S108).

Thereafter, a closing process such as power-off of the computer main body 15 is performed (step S10).
9). Then, after that, the monitoring of the monitoring signal 12 is restarted, and when it changes from "OFF" indicating an abnormal state to "ON" indicating a normal state (step S110; Y), the recovery operation for the computer main body 15 is executed. (Step S111).

FIG. 3 shows concretely the recovery work for the computer main body. CP for this restoration work
U16 first changes the control flag from "off" to "on" (step S201). Then, the volatile data saved in the data storage memory 19 is first read out, sent to the computer main body 15, and stored in the corresponding location (step S202). Next, in the same manner, the arithmetic unit information is read out and sent to the computer main body 15 to be restored (step S203). Finally, all file information is sent to the computer main body 15 to be restored (step S204).

When the various information saved in the data storage memory 19 is stored in the original position of the computer main body 15 in this way, the CPU 16 of the automatic stop / recovery device 14 starts the operation of the OS of the computer main body 15 ( In step S205), all the recovery work is completed (END).

In the embodiment described above, a predetermined order is provided for reading data or information from the computer main body 15, but these orders can be changed arbitrarily. Further, for example, when all the file information is stored in the RAM area in the computer main body 15, the processing of these information can be performed by the work of step S106 and step S202, so step S10.
It goes without saying that the processing of 8 and step S204 can be omitted.

[0019]

As described above, according to the first aspect of the invention, when the sensor detects an environmental abnormality, the predetermined information in the computer main body is saved to the outside and then the main body operation is stopped. At the same time, it was decided to operate the computer main body after restoring this information. Therefore, the computer body has the original information when the operation is resumed after the environment is restored to the normal state, and the recovery does not cause an obstacle even in the unmanned operation. Also, since we decided to save the necessary data once outside the computer body and restore it when the environment became normal,
It is possible to effectively prevent secondary disasters such as file destruction that have been conventionally caused by system down.

According to the second or third aspect of the present invention, the stop processing or operation start of the operating system and the timing of saving or restoring the data from the computer main body are defined by a time-sequential relationship. Therefore, the reliability of the computer system can be improved.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing an automatic stop / restoration system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a state of evacuation control of the automatic stop / restoration device in the system of the present embodiment.

FIG. 3 is a flowchart showing a state of recovery control of the automatic stop / recovery device in the system of the present embodiment.

[Explanation of Codes] 11 Sensors 12 Monitoring Signals 13 Automatic Driving Device 14 Automatic Stop / Recovery Device 15 Computer Main Body 16 CPU 18 Program Storage Memory 19 Data Storage Memory

Claims (3)

[Claims] 1. A computer main body, a sensor for monitoring an environmental condition of the computer main body and generating a monitor signal corresponding to the environmental condition, and when the monitor signal of the sensor changes from a normal state to an abnormal state, the inside of the computer main body Information saving / restoring means for restoring predetermined information and restoring the saved information to the computer body when the monitoring signal changes from the abnormal state to the signal state indicating the normal state, and the information saving / restoring means Automatic stop recovery, characterized in that the operation of the computer main body is stopped after the computer is saved, and the operation of the computer main body is restored when the saved information is returned to the computer main body. system. 2. The automatic stop / restoration according to claim 1, wherein the information saving / restoring means saves the information which is in operation at that time after performing the stop processing of the operating system in the computer main body. system. 3. The automatic stop / restoration system according to claim 1, wherein the information saving / restoring means starts the operation of the operating system in the computer body after the saved information is restored in the computer body. ..