JPH0485609A - Power consumption controller for computer associated equipment - Google Patents

Abstract

PURPOSE:To decrease the total power consumption of a computer without disturbing the processing operations of the computer by providing a device which detects a fact that no input is applied from an input device for a fixed time and a device which selects a proper clock in an input state and supplies it to a CPU. CONSTITUTION:A clock controller 14 reduces the frequency of a clock when an input monitor device 13 detects that no input is applied from an input device 11 for a fixed time as long as no special operation is carried out when an input operation is carried out by the device 11. That is, such special operations are carried out as the push of a special key, the execution of a special command, etc., in such a case where a computer associated equipment is operated for a long time with no input operation carried out especially by the device 11. Then the clock frequency is reduced if no input operation is carried out by the device 11 for a fixed time when no special operation is carried out. Thus the power consumption of a computer can be reduced in accordance with an input state.

Description

[Detailed description of the invention]

Industrial Application Field The present invention relates to the power consumption of computer-related equipment that reduces the operating power consumption according to the input state of computer-related equipment using a central processing unit (hereinafter referred to as CI). Regarding a control device. 2. Description of the Related Art In recent years, computers have become smaller, and battery-powered laptop-type computers have become widespread and in use. Therefore, in order to extend the life of the battery,
:1 Efforts are being made to reduce the power consumption of computers. Conventional power consumption control will be described below. FIG. 2 is a flowchart 1 showing conventional power consumption control. The conventional method of controlling power consumption is to prepare in advance for the first time, and then to wait for an input. Nori: ``One step is to control the frequency to a low level when high-speed operation is not required,'' and the second step is to control the power consumption by 1. 4'' In other words, in Figure 2, if there is any key input, the clock frequency will be reduced to a medium level (5), and the system will return to its original high-speed operation and process the input information. ″4
1. Problems that the invention aims to solve 15 However, in the conventional power consumption control method described above, the input input that is monitored in advance 9! :' can be done, but 21 and 2. -Software that runs on Ta-10 is pre-installed with 1°F. - If you do not use the input waiting routine provided in the computer but use your own input waiting routine, it has the disadvantage that it is impossible to control power consumption. The invention is -
This method solves the traditional problems such as 4-1, which allows you to monitor the input from the input device and manually adjust the data according to the input status.
The purpose of reducing the power consumption of a computer by controlling the number of rotations of the p u is defined as "Objective 1-1". The input monitoring device detects that no input has been made for a certain period of time unless an operation is performed during an input operation from the input device. The control surface reduces the frequency of the CPU drive by one step.

The power consumption of the combination and 7-machine-related equipment supplied as a ``tsuk'' is 1! The power consumption control device for computer-related equipment of the present invention having the configuration described above operates the computer-related equipment for a long time without any special input from the input device. If you want to do it, press the special yah, but execute special -1 cloak 4
When a certain period of time has elapsed without any input operation from the input device when there is no special operation, lower the frequency of
The power consumption of the operation is reduced. As a result, C
The PU's operation will be slower, but since it is not processing information, it will hopefully not have a big impact. An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of the configuration of a power consumption control device for an information processing device that is a computer-related device in an embodiment of the present invention. In FIG. 1, the components of the information processing device 1 are as follows: 11 is a keyboard, 12 is a keyboard control device, 13 is a keyboard input monitoring device, 14 is a cock control device, 15 is a beam L11
11.1-m-board 11 input is controlled by the keyboard control device 12, and the keyboard input monitoring device 13 is the keyboard control device 1.
The output from the keyboard input monitoring device 13 and the clock generator 1 are monitored.
5, and the clock beam of the CPU 16 [1
control device] 4. In the apparatus configured as described above, the related operations of the constituent elements will be explained below. Information processing bag f], i7, keyboard 14,
, l is pressed, the clock controller 14
detects a specific key input, and switches whether the controller 14 controls the CPU clock or not. As a result of this clock control switching, when the CPU clock control is possible in ), when ↑---4'- is input from board 11, keyboard controller] 2 detects the input and indicates that the input has been made. is notified to the input monitoring device 13. The input monitoring device 13 monitors the input signal from the 1-board control device 12 and measures the number of applications from the time an input is made until the next input. Keyboard] Input from 1 -
・If the input monitoring device 13 is not operated for a fixed period of time, the beam “1”
A signal is sent to the clock controller 14 to reduce the clock frequency. , the clock control device 14 receives a signal for reducing the clock frequency from the input monitoring device 13 (when it receives a signal from the input monitoring device 13, it receives a signal from the input device 1!T).
1 and supplies it to the CPU], 6. This reduces the power consumption due to the movement angle of CI) Tll. If input is performed from the keyboard 11 while the CPU frequency is being supplied to the CPU 1.6, the input signal is transmitted from the keyboard control device 12 to the input monitoring device 1: input (visual fi
1.3 Sends a signal to stop reducing the clock frequency to the clock controller 14, and the clock controller 14 directly transmits the clock frequency from the clock generator 15 to the CPU 1.
Supply to 6. This causes υ to return to the previous high-speed operation of the CPU and process the input information. In addition, when CPU clock control is not performed, that is, when a specific key is pressed, the L1 clock control device 14 directly supplies the L1 clock frequency from the clock generator 15 to the CPU ], 6. In this case, the original high-speed operation of CPIJ is maintained, so 1-
Information processing without input from an input device such as the board 11,
It can be used when management is required. As described above, according to this embodiment, the input signal of the input device is monitored, and the operating frequency of CPT, , ]' 16 is controlled according to the input state, and the input monitoring device 1:3,'
1) Set up the control device 14.3. + Ruko, Toni 5],
0, Necessary:, 2+; - evening power consumption 4 - can be reduced, 2 and 5 degrees;
Should I control the Uri 11 or switch? -1 An example of using a special key to turn on is shown in 7, but in addition to this, it is also possible to use other means such as Possible to control φ
It is also possible to switch between , and. As is clear from the explanation of the effects of the invention, the present invention has J, if, c.
1. If no input is made from the input device for a certain period of time in a computer-related device using PU. 1-1 Appropriate depending on the device that detects this and the state of the input.
By setting up a device that selects and supplies data to the CPU, the consumption of the entire device can be reduced without interfering with processing operations.
This makes it possible to realize an excellent power consumption control device that can reduce power as necessary.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a power consumption control device for an information processing device according to an embodiment of the present invention, and FIG. 1... Input device, 13... Input monitoring device, 14-... IXI control device, 15.
...Clock generator, 16...CP
tJ 0 Agent's name Patent attorney Akio Awano Haka] Name - Yuu Station - Riba 1

Claims (2)

[Claims] (1) A central processing unit that operates with a clock of a specific clock frequency, a clock generator that generates the clock, an input device for performing input operations, and detects whether a special operation has been performed from the state of the input device. and a clock control device that supplies the clock to the central processing unit; and an input monitoring device that detects that no input from the input device is received for a certain period of time and outputs a detection signal to the clock control device. and when the clock control device does not detect the special operation when inputting from the input device, when the clock control device receives the detection signal from the input monitoring device, the clock control device detects the specific operation. A power consumption control device for computer-related equipment configured to supply a clock having a lower frequency than the central processing unit. (2) The power consumption control device for computer-related equipment according to claim 1, wherein the clock control device supplies the clock from the clock generator to the central processing unit when an input operation is performed by the input device. .