JPS59133620A - Automatic operating system for power restoration - Google Patents

Abstract

PURPOSE:To start the operation automatically after power restoration, by setting a power failure/power restoration memory again to restart the execution of an unprocessed job if a power failure is generated during the execution of the job or the start of the job is set during the power failure. CONSTITUTION:When the power failure is recovered, a power failure/power restoration detecting part 3 detects it to input a signal to a clock part 5, and therefore, the power restoration time is inputted to a power failure/power restoration time holding part 6 and is stored. An information processing part 1 reads out information which indicates whether a power failure event holding signal from a power failure event holding part 4 is generated or not; and if it is generated, the information processing part 1 reads the occurrence time of the power failure and the power restoration time from the holding part 6 through a data bus 9. Job scheduling time information set to the clock part 5 is read out, and the occurrence time of the power failure is compared with the execution start time of each job, and jobs are executed before the other unprocessed jobs if they are scheduled during the time from the power failure time to the power restoration time.

Description

DETAILED DESCRIPTION OF THE INVENTION (a1) Technical Field of the Invention The present invention relates to an automatic driving system in which an information processing system is linked with a clock unit and operated according to a calendar schedule.

Background of fbl technology In order to improve the operating efficiency of a computer system, it is equipped with a clock function, and a schedule is created by setting job submission and program execution at each time in advance, and operator intervention is required. Automated driving systems that drive without any need for transportation have been put into practical use.

Figure 1 is a diagram showing the outline, and each time a, b, c, d
,' e- for each job ASI3. C, D, E-...
The clock function is job scheduled to start running. However, for example, if a power outage occurs at time X while job I3 is being executed, jobs B and subsequent jobs will not be executed at all even if the power is restored afterwards.

That is, in the conventional method, jobs after the time when the power outage occurs are not processed, and the system does not operate during that time, resulting in a decrease in operating efficiency.

(Object of the Invention) An object of the present invention is to solve such problems in conventional information processing systems and to automatically start operation after power is restored even if a power outage occurs.

(Q1 Structure of the invention In order to achieve this object, the present invention has a job schedule section driven by a back amplifier power supply, which includes a timer section and a job schedule memory section, and detects a detection signal from a power outage/power restoration detection section. The information processing section obtains clock information from the clock section, and when a preset time comes, submits a job or executes a program, and also has a storage means for retaining power outage events. In an information processing system equipped with an information processing system, the job scheduling section is equipped with a memory for storing power outage and power restoration times that is connected to the clock section by a path, records the power outage time and power restoration time, and when the power is restored, the job is scheduled. If a power outage occurs during execution, or if a job is set to start during a power outage period, the power outage/power recovery time storage memory is reloaded and unprocessed jobs resume execution. ing.

(Example of f1 invention) Next, how the automatic driving system at the time of power restoration according to the present invention is actually embodied will be explained using an example. Fig. 2 is an example of the automatic driving system at the time of power restoration. In this block diagram, 1 is an information processing section such as a computer system, and 2 is a job schedule section driven by a bank amplifier power source such as a battery, each of which has a separate power supply system.

The backup power source is constantly charged while there is no power outage. The job scheduling section 2 includes a power outage/power restoration detection section 3 that detects the occurrence of a power outage or power restoration, and stores that a power outage has occurred based on a detection signal from the power outage/power restoration detection section 3. It includes a power failure event holding section 4 and a clock section 5 that is constantly driven by the puncture amplifier power supply. The clock section 5 includes a clock section 51 that always keeps time, and alarm-related information corresponding to each time (R-A).
, M is provided.

Further, the clock section 5 is provided with a power outage/power restoration time holding section 6 that stores the original time of power outage and power restoration time based on an interrupt signal inputted from the power outage/power restoration detection section 3 . A clock unit 5 is connected between the information processing unit 1 and the job scheduling unit 2.
, are connected by a control bus 8 for controlling the power failure event holding unit 4. Also, via the bidirectional data bus 9, reading/writing the current time, reading/writing the alarm time, etc.
Data transfer such as writing is performed.

The execution start time of each job is set in the job schedule memory section 52 of the clock section 5 as shown in FIG. 1, and when the set time matches the current time, an alarm signal is generated from the clock section 5. , are input to the information processing section 1 via the OR circuit 7. Based on the alarm signal, the information processing unit 1 reads out the cause of the alarm from the clock unit 5, detects that the execution of a job has started, and starts executing jobs A, B, C, etc. corresponding to the set time. Execution takes place.

If a power outage occurs now, the occurrence of a power outage is stored in the power outage event storage unit 4 based on the detection signal from the power outage/power restoration detection unit 3, and the information processing unit 1 also stores information about the job being executed due to the power outage. Interrupt.

In addition, in response to a power outage detection signal input from the power outage/power restoration detection section 3 to the clock section 5, the power outage/power restoration time holding section 6 is sent from the clock section 5 to the power outage/power restoration time holding section 6.
The time of occurrence of the power outage is entered and stored.

When the power is restored, the information processing section 1 is automatically retried and performs initial operations such as loading a microprogram, and is brought up to a state where it can execute a job.

In addition, the power outage/power restoration detection unit 3 detects that the power has been restored,
In order to input it to the clock section 5, the power restoration time is inputted from the clock section 5 to the power outage/power restoration time holding section 6 and stored.

Next, the information processing unit 1 reads out whether or not a power outage event holding signal is generated from the power outage event holding unit 4, and if the power outage event holding signal is generated, the information processing unit 1 reads out the power outage/return time via the data hash 9. The holding unit 6 reads the power outage occurrence time and power restoration time. Then, the power outage occurrence time and the job scheduling time information set in the clock unit 5 are read out, and the execution start times of each job 8, B, C, etc. are compared, and the period from the power outage occurrence time to the power restoration time is compared. If a job is scheduled for , it will be executed before other unprocessed jobs. For example, as shown in FIG. 1, if the time of occurrence of the power outage is X, execution resumes from job B. That is, if the power restoration time is Y, then the restart time of job B after power restoration is Y,
Execute job B from the beginning. Further, the job schedule is re-stored in the job schedule memory section 52 of the clock section 5.

That is, Start time of job C: Y+ (c-b) Start time of job D: Y+ (d-b) Start time of job E: Y+ (
e-b). Thereafter, based on the alarm generated from the job schedule memory 52 of the clock section 5,
Jobs cj D, E, . . . are executed sequentially in the same manner as above.

Alternatively, it is also possible to execute jobs C, D, E, etc. after the current time based on the initial job scheduling, and then execute job B affected by the power outage.

FIG. 3(A) shows an example in which a flip-flop FF is used as the power failure event holding section 4, and FIG. 3(B) is a time chart showing its operation. When a power failure detection signal is input from the power failure/recovery detection unit 3 to the J terminal, a power failure event holding signal is output from the Q terminal in synchronization with the clock. When the power is restored, the power failure detection signal is turned off, and as described above, when the information processing section 1 reads the power outage time and power restoration time from the power outage/power restoration time holding section 6 via the data bus 9 after the initial operation is completed, The sense signal from the information processing section 1 is sent to the flip-flop F.
F is input to the terminal of F, and the flip-flop is reset to the initial state in synchronization with the clock.

(g1 Effects of the Invention As described above, according to the present invention, the job scheduling unit driven by the back amplifier power supply is equipped with a memory for storing the time of power failure and power restoration, and stores the time of power failure and the time of power restoration,
When the power is restored, a power outage may occur during job execution, or
If the job was set to start during a power outage,
A method is adopted in which the power outage/power restoration time holding memory is reset and execution of unprocessed jobs is resumed. Therefore,
Even if a power outage occurs, jobs scheduled after the power outage occur can be automatically executed after the power is restored, realizing fully automatic operation of the information processing device and improving operating efficiency.

[Brief explanation of the drawing]

Figure 1 shows the job scheduling method, Figure 2
The figure is a block diagram showing an embodiment of the automatic operation system at the time of power restoration according to the present invention, and FIG. 3 is a diagram showing the configuration of a power outage event holding section and a time chart. In the figure, ■ is an information processing unit, 2 is a job scheduling unit, 3 is a power outage/power recovery detection unit, 4 is a power outage event holding unit,
Reference numeral 5 indicates a clock section, and 6 indicates a power outage/power restoration time holding section. Applicant: Fujitsu Limited Agent: Minoru Aoyagi 103 Figure 1: First I? Cut

Claims (1)

[Claims] A job schedule section driven by a backup power supply includes a clock section and a job schedule memory section, and a clock section into which a detection signal from a power failure/power restoration detection section is input, and information By obtaining clock information from the clock section, the processing section submits a job or executes a program at a preset time.In an information processing system equipped with a storage means for storing power outage events, the job scheduling section , is equipped with a memory for storing the time of power outage and power restoration, which is connected to the clock part by a lotus, and records the time of power outage and power restoration, and when the power is restored, it is possible to prevent a power outage from occurring while a job is being executed, or during a power outage period. An automatic operation method when the power is restored, which is characterized in that if the start of the job is set to , the power outage/return time storage memory is reset and execution of unprocessed jobs is resumed.