JPH0374709A - Automatic power unit controller - Google Patents

Abstract

PURPOSE:To control the supply of the power unit of a computer connected to an ISDN network from a remote place by providing a means controlling the data ring protocol of ISDN, and supplying the power unit of the computer when an information frame from an opposite computer is received. CONSTITUTION:A control program is stored in ROM 12 and the computer 20a is programmed in such a way that the retry of SARME (set asynchronous response mode extended) is attained. An automatic power unit controller 20a turns on its own power unit and establishes a data linked by SABME and UA (unnumbered acknowledge). When it is recognized that the information frame is received through an information frame DSU 30a from the opposite computer 20b, CPU 11 sets an opening/closing control signal line 15 to an on- state as against an I/O control part 14 in accordance with the program stored in ROM 12. Thus, a power opening/closing disk 21 is turned on, and the power unit 22 of the computer 20a is automatically supplied.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is applied to an automatic power supply control device that turns on a computer from a remote location using a communication line, and in particular,
ISD in SDNwl (Integrated Service Digital Communication Network)
The present invention relates to an automatic power control device that automatically turns on the power of a computer connected at a point S of an N basic access interface.

〔overview〕

The present invention provides an automatic power supply control device that is connected to computers that perform data communication with each other via an ISDN network and that controls the power on of the computers, which includes a protocol control means that controls an ISDN data link protocol, and that When receiving the information (I) frame of
By turning on the power of the computer, turning on of the power of the combinator connected to the ISDN network can be controlled from a remote location.

[Conventional technology]

Conventionally, this type of device (or mechanism) that powers on a computer from a remote location using a communication line has a modem that detects a reception line signal (C) when connected to a private line or public line.
D) Signal or network control unit (NCU) with ring display (
This is implemented by monitoring the control signal line of the CI) signal. Therefore, it cannot be applied to interfaces without signal lines, such as DDX packets and ISDN.

[Problem that the invention seeks to solve]

The conventional automatic power control device described above uses the control signal line of the modem or network control unit (NCU) when turning on the computer from a remote location using a communication line.
The power was turned on by monitoring the D signal and the CI signal for the NCU and detecting the "on" state of these signals. Therefore, if there is no control signal line to detect the "on" state of these signals, that is, if there is a DDX packet or IS
DN had a drawback that it could not be applied.

The aim of the invention is to eliminate the above-mentioned drawbacks by
An object of the present invention is to provide an automatic power supply control device capable of controlling power-on of a computer connected to an SDN network from a remote location.

[Means for Solving the Problems] The present invention provides an automatic power control device connected to computers that communicate with each other via an ISDN network, and provided with a power control means for controlling opening/closing of power to the computers. The power control means includes a protocol control means for controlling an ISDN data link protocol, and a power-on control means for turning on the power of the computer by receiving an information frame from the other computer. do.

[Effect]

The automatic power control device of the present invention has a computer and an ISDN.
It is connected between networks and controls the data link protocol by a protocol control means.

When receiving the information (I) frame from the other computer, the computer is powered on by the power-on control means. Data communication with the partner computer is thereby performed.

Therefore, it is possible to apply power to a computer from a remote location by applying it to DDx packets or ISDN.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing essential parts of an embodiment of the present invention, and FIG. 2 is a block diagram showing an example of a system using the embodiment.

According to FIG. 2, in a system using an embodiment of the present invention, an automatic power supply control device 10 is connected to an ISDN network 40 via a home line termination (hereinafter referred to as DSU) 30a,
A computer 20a is connected to the automatic power supply control device 10, a partner computer 20b is connected to the ISDN network 40 via the DSU 30b, and the combinator 20
A power supply 22 is connected to a via a power switchboard 21, and an opening/closing control signal line 15 from the automatic power supply control device 10 is connected to the power switchboard 21.

According to FIG. 1, an automatic power supply control device 10 according to an embodiment of the present invention has a communication control section 13 as a protocol control means for controlling an ISDN data link protocol, which is a feature of the present invention, and a communication control section 13 as a protocol control means for controlling an ISDN data link protocol. In order to turn on the power 22 of the computer 20a by receiving the information frame (I]1/-A) from the computer 20, turn on the power by turning on the switching control signal line 15 to the power switching panel 21. A central processing unit (CPU) 11 and a ROM 12 include an I10 control unit 14 as a control means, and further control these operations by a program.
Contains.

In addition, here, D S U30a and automatic power supply control device 1
The interface with CCITT Recommendation 4 Recommendation 4
The interface between the automatic power supply control device 10 and the computer 20a is defined in accordance with CCITT Recommendation V24.
, defined in accordance with X21.

Next, the operation of this embodiment will be explained with reference to the explanatory diagram of FIG. 3 showing the data link procedure.

Here, the automatic power supply control device 10 is always in a power "on" state, and the ROM 12 stores a program for performing control. Further, the computer 20a is S A
B M E (set asynchronous r
It is programmed so that it can be used in response mode (exponse mode extended).

The automatic power control device 20a turns on its own power and at the same time turns on SABME and U A (unnmber
A data link is established using the edacnow ledger.

Then, the information frame (
I frame) KR indicates that it has been received via the DSU 30a.
Then, according to the program stored in the ROM 12, the CPU Ull turns on the opening/closing control signal line 15 to the work/○ control unit 14. As a result, the power switch panel 21 is turned on, and the power switch 22 of the computer 20a is turned on.
is automatically entered.

After the power 22 of the computer 20a is turned on, the D
All data received from S U30a is transferred to computer 20a, transmission is started from SAMBE, and D
M (disconnect mode), SAMB
Communication is performed using the E and UA procedures.

Note that when the communication ends, the switching control signal line 15 returns to the "off" state, and the power switchboard 21 becomes "off".

〔Effect of the invention〕

As explained above, the present invention enables, when controlling the power of a computer connected to an ISDN network from a remote location, to connect a device capable of interpreting a data link level protocol to the computer, which would be impossible with conventional methods. This has the effect of making it possible to automatically turn on the power of a computer connected to an ISDN network from a remote location.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the main parts of an embodiment of the present invention. FIG. 2 is a block diagram showing an example of a system using an embodiment of the present invention. FIG. 3 is an explanatory diagram showing a data link procedure according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Automatic power supply control device, 11... Central processing unit (CPU), 12... ROM, 13... Communication control unit, 14... I/○ control unit, 15... Opening/closing control Signal lines, 20a, 20b... Computer, 21...
Power supply switchboard, 22...Power supply, 30a130b...Domestic line termination (DSU), 40...ISDN network. Figure 1: Configuration of Example

Claims (1)

[Claims] 1. An automatic power control device connected to computers that communicate with each other via an ISDN network, and equipped with a power control means for controlling the opening and closing of the power supply of the computers, wherein the power control means is connected to an ISDN network. An automatic power control device comprising: a protocol control means for controlling a data link protocol; and a power-on control means for turning on the power of the computer by receiving an information frame from the other computer.