JPH0471212B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an automatic power-on system, and more particularly to an automatic power-on system for a data processing system that performs data processing according to a program stored in a memory.

[Background of the invention]

The conventional method for automatically powering on a data processing system is to manually set the desired power-on time on a power-on device that operates on a separate power supply from the data processing system. It was common to be able to set a reserved time for feeding. The power-on device controls power-on of the system according to this set time. In this conventional method, since the software (program) itself does not manage the set power-on time, when changing the power-on time, it is necessary to change the job schedule of the software and reserve the time of the power-on device. This method requires two tasks, one for changing the first one, and is not only inefficient, but also has the drawback of being prone to making changes. Additionally, if you want to automatically power on multiple systems connected by communication lines according to a common schedule, you must set the power-on time in each region according to the above schedule for each power-on device connected to each system. However, it also has the disadvantage of lacking operational flexibility, especially when changes occur in the schedule. Furthermore, it is not possible to automatically advance the next power-on time or cancel the job depending on the processing status of the job.

[Purpose of the invention]

An object of the present invention is to provide an automatic power-on scheme with software intervention.

[Summary of the invention]

The present invention is an automatic power-on method for a data processing system that performs data processing according to a program stored in a memory, and includes a power-on device that controls power-on of the data processing system. During operation, in response to an instruction to set the next power-on time, the instructed time information is transferred to the power-on device under the control of the program, and the power-on device performs the above operation based on the transferred time information. It is characterized by controlling the next power up for the system.

[Embodiments of the invention]

Examples of the present invention will be described in detail below.

FIG. 1 is a block diagram showing one embodiment of the present invention. In the figure, 10 indicates a data processing system, and 20 indicates a power-on device for the system 10. The system 10 includes a memory 11 and an instruction control device 13, and according to various programs stored in the memory 10, instructions are read to the instruction control device 13 to perform data processing. The system 10 further includes a console display device CD 14, including a year, month, day, and
Battery-powered clock mechanism TOD1 that displays hours, minutes, and seconds
5. The system 10 is controlled by the power-on device 20.
It includes a power-on circuit (for example, a switch) 16 for turning on the power. The system 10 may further include devices necessary for data processing, but these are omitted because they are not directly relevant to the description of the present invention. A schedule table 12 is stored in the memory 11,
For example, a power-on schedule including power-on times for one week and a daily job schedule are registered. Schedule table 12 is memory 1
1, but may be registered in a separately provided register means or the like.

The power-on device 20 operates using a separate power source from the system 10. Of course, it may be independent of whether the system 10 is powered on or off. The power supply device 20 includes a clock generation circuit 21 that generates a clock in units of seconds;
A counter 22 that subtracts the initial value from the set value every second based on the clock of the clock generation circuit 21 and issues a signal when all zeros are reached.
2 includes a power-on instruction circuit 23 that instructs the power-on circuit 16 to turn on the power using the signal No. 2.

FIG. 2 shows a flowchart for explaining one embodiment of the present invention.

Upon power-up (step 30), either manually or based on a previous power-on schedule, an initial, program, and load IPL is performed (step 30).
31). In response to the end of IPL, a time setting routine indicated by 32 is executed to set the time for the next time (the next day). First, the next power-on time is read from the schedule table 12 in the memory 11 (step 33). and command control device 1
At step 3, the time difference from the current time indicated by the TOD 15 is determined (step 34), and this time difference is set in a predetermined area of the memory 11 (step 35). Next, a set timer instruction is issued (step 36).
As shown in FIG. 3, the set timer instruction consists of an instruction code section 41 and an address section indicating the address of the memory 11 where the time difference is set.
The time difference data of the area of the memory 11 indicated by is notified to the power-on device 2 as time information. The time difference data is set to an initial value in the counter 22, and is subtracted by one second based on the clock of the clock generation circuit 21.

The scheduled job is processed in the system 10 (step 37), and the power is turned off upon completion (step 38).

The counter repeats subtraction even after the data processing system 10 is powered off, and when the contents reach all zeros, that is, the next power-on time, a signal is given to the power-on instruction circuit 23. The power-on instruction circuit 23 is connected to the power-on circuit 16 of the system 10 for the system 1
0, and the system 10 is powered on under the control of the power-on circuit 16.

In the example in Figure 2, the time setting routine is performed in response to the end of IPL, but it can also be performed at any time during system operation, for example, before power is turned off or between jobs. You can also do it.

In addition, the operator can input the next power-on time from CD3, and in response to an instruction from CD14, the operator can input the same instructed power-on time and TOD.
15 is calculated in seconds, the difference is set as an initial value in the counter 22 by the same control as above, and the power is turned on based on the time when the operator turned it on.

According to this embodiment, since the software itself can know the power-on schedule, even if the processing does not end even after the pre-scheduled system stop time, the computer system 10 will be shut down for maintenance. If processing cannot be continued, the software calculates the scheduled execution time of unprocessed jobs and sets the new time earlier than the next power-on time registered in the schedule table 12 by that amount. Set the next power-on time, calculate the time difference with TOD15, and set.
By issuing a command to the timer, the next power-on time can be automatically advanced.

In addition, for multiple systems connected by communication lines,
Changed schedules can be automatically sent, eliminating the need to set them independently in each location.

In this embodiment, the power-on device 20 is notified of the time difference until the next power-on time.
0 has a clock mechanism similar to TOD15, which not only simplifies the structure of the power-on device compared to a system that matches the power-on time sent from the computer system, but also unifies the time of both clock mechanisms. The advantage is that it is not necessary. Of course, in the present invention, the power-on device may also have a TOD, and the power-on time itself may be transferred as time information from the data processing system.

It goes without saying that the power-on device 20 may be separate from the computer system 10 or may be mounted as a part thereof.

In this way, the data processing system can manage the scheduled power-on time as data, so even if the schedule changes, the power-on time can be easily changed from the console display, and there is virtually no limit to the period that can be reserved. In addition, since it is possible to perform calculations, it is now possible to precisely change the power-on time according to the processing situation, and it is also possible to schedule the power-on of other data processing systems via communication lines, making system operation more efficient. This has the effect of improving performance, reliability, and operational flexibility.

〔Effect of the invention〕

As described above, according to the present invention, an efficient and flexible automatic power-on method can be obtained through software intervention.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention;
Figure 2 is a flowchart explaining Figure 1;
The figure shows the format of the set timer instruction. 10...Data processing system, 11...Memory, 1
2... Schedule table, 13... Command control device, 14... Console display device, 15...
Clock mechanism, 16... Power-on circuit, 20... Power-on device, 21... Clock generation circuit, 22... Counter, 23... Power-on instruction circuit.

Claims (1)

[Claims] 1. An automatic power-on method for a data processing device that stores a program in a memory and performs data processing according to the program, comprising a power-on device that controls power-on of the data processing system,
If data processing is not completed by the system stop time, calculate the scheduled execution time of the unprocessed jobs,
The next power-on time registered in advance is changed based on the scheduled execution time, the changed power-on time is transferred to the power-on device, and the power-on device performs the above operation based on the transferred power-on time. An automatic power-up method characterized by controlling the next power-up for the system.