JPH04169919A - System for turning off power supply - Google Patents

Abstract

PURPOSE:To suppress the unnecessary power consumption by automatically turning off the power source of a data processor when all jobs are not operated for a prescribed time. CONSTITUTION:Plural jobs 10-1 to 10-4 can be operated on the data processor, and a job state storage part 11 has information indicating whether each of jobs 10-1 to 10-4 is operated at present to not, and outputs a signal indicating this information to a number of operating jobs detecting part 12. This part 12 obtains the number of operating jobs value, which indicates the number of jobs operated on the data processor, based on this signal, and a stop state time measuring part 13 refers to said value to measure the time when all jobs on the data processor are not operated at all and are in the stop state. Since a battery is disconnected by a power-off means 14 when continuity of the stop state for a prescribed time is measured by the stop state time measuring part 13, the power source of the data processor is automatically turned off when necessary. Thus, the unnecessary power consumption is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data processing device, and particularly to a power-off method when it is necessary to suppress power consumption, such as when the device is driven by a battery.

[Prior Art] Conventionally, there are data processing devices that can be driven by batteries. In that case, after the work is completed,
In order to prevent wasteful battery consumption, the operator is required to turn off the power.

[Problems to be Solved by the Invention] However, conventional data processing devices require an operator to operate a power switch when turning off the power. If the operator does not turn off the power switch, power will be consumed even when the device is not in use, resulting in a disadvantage that more power will be wasted and the battery operating time will be shortened.

Therefore, an object of the present invention is to provide a data processing device that automatically turns off the power when unnecessary, thereby minimizing wasted power consumption.

[Means for Solving the Problems] According to the present invention, a job is operated on the data processing device based on a signal from a job status storage unit having information as to whether or not the job is running on the data processing device. obtain a numerical value of active jobs representing the number of jobs in the data processing device, measure a period of time in a dormant state in which all jobs on the data processing device are not in operation by referring to the numerical value of active jobs, and when the dormant state continues for a predetermined period of time; A power-off method is obtained, which is characterized in that the device is turned off at the same time.

Further, according to the present invention, an operating job numerical value representing the number of jobs operating on the device is obtained based on a signal from a job status storage unit having information as to whether or not the job is operating;
Data characterized in that the duration of a dormant state in which all jobs on the device are not running is measured by referring to the operating job numerical value, and the power of the device is turned off when the dormant state continues for a predetermined period of time. A processing device is obtained.

Further, according to the present invention, in a data processing apparatus driven by a battery, a job status storage section having information as to whether a job is running or not; an active job number detection unit that obtains an active job number representing the number of jobs operating on the data processing device; and a pause unit that refers to the active job number to measure a period of time in a dormant state in which all jobs on the data processing device are not operating. There is obtained a data processing device characterized in that it has a state time measuring section and a power cutoff means for disconnecting the battery when the dormant state time measuring section measures that the dormant state has continued for a predetermined period of time. .

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram for explaining a power-off method according to an embodiment of the present invention. Here, as an example, a case of a data processing device driven by a battery (not shown) will be described.

The plurality of jobs 10-1 to 10-4 are jobs that can be executed on the data processing device. The state storage section 11 has information as to whether each job 10-1 to 10-4 is in operation, and sends a signal representing this information to the number-of-operation-job detection section 12.
output towards.

Based on this signal, the active job number detection unit 12 obtains an active job numerical value representing the number of jobs operating on the data processing device. Referring to this operating job numerical value, the dormant state time measurement unit 13 measures the time period during which all jobs on the data processing device are in a dormant state. When the hibernation state time measurement section 13 measures that the hibernation state has continued for a predetermined period of time, the power supply cutoff means 14 disconnects the battery.

As a result, the power to the data processing device is automatically turned off when it is not needed.

[Effects of the Invention] As explained above, according to the present invention, unnecessary power consumption can be suppressed by automatically turning off the power of the data processing device when all jobs do not operate for a predetermined period of time. This has the effect of extending the battery operating time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram for explaining a power-off method according to an embodiment of the present invention. 10-1 to 10-4... Jobs that can be operated on the data processing device, 11... Job status storage section, 12... Number of active jobs detection section, 13... Dormant state time measuring section, 1
4...Power cutoff means. ,;-1 figure

Claims (1)

[Claims] 1. An operation representing the number of jobs running on the data processing device based on a signal from a job status storage unit having information as to whether jobs are running on the data processing device. Obtaining a job numerical value, measuring the duration of a dormant state in which all jobs on the data processing device are not running by referring to the operating job numerical value, and turning off the power of the device when the dormant state continues for a predetermined period of time. A power-off method featuring 2. Obtain an operating job numerical value representing the number of jobs operating on the device based on a signal from a job status storage unit that has information on whether or not the job is operating, and refer to the operating job numerical value. A data processing device characterized in that the time period in which the device is in a dormant state in which all jobs are not running is measured, and the power to the device is turned off when the dormant state continues for a predetermined period of time. 3. In a data processing device driven by a battery, a job status storage section having information as to whether a job is running or not, and a job status storage section that operates on the data processing device based on a signal from the job status storage section. an active job number detection unit that obtains a numerical value of active jobs representing the number of jobs; and a dormant state time measuring unit that refers to the numerical value of active jobs and measures a period of time in a dormant state in which all jobs on the data processing device are not running. 2. A data processing device comprising: a power cut-off means for disconnecting the battery when the hibernation state time measuring unit measures that the hibernation state has continued for a predetermined period of time.