JP2809075B2 - Distributed power supply control device using LAN as communication means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power-on control between computers connected by a local area network (hereinafter, referred to as a LAN), and more particularly to a distributed computer system such as a server client system and a file collection / distribution system. About.

[0002]

2. Description of the Related Art Conventionally, a method of distributed power supply control using a LAN as a communication medium (Japanese Unexamined Patent Publication (Kokai) No. Sho 62-31232 ... Local Area Network,
... communication control device) has been proposed.
In the apparatus 1232, each station is normally energized, and the power of the main body of the station is turned on by detecting and outputting a signal addressed to the station from a transmission line, thereby individually turning on the power individually. 1-300
742 uses a communication control device having a power supply control unit, a personal computer control unit, and a LAN communication control unit to easily start peripheral devices such as an auxiliary storage device and a printing device of another station. , Both power supply O
It is up to the activated computer to not notify or notify the status of the other party after N.

Japanese Patent Application Laid-Open No. 63-229944 (power on / off control method) controls the power on / off of each station and peripheral devices in a LAN by using a device use request, a use end message and a status sense message. Is used to safely turn off the power of the device.
The status was monitored by another device connected to the AN.

Next, a conventional distributed power supply control device will be described with reference to the drawings.

FIG. 5 is a configuration diagram of a LAN system using a conventional distributed power supply control device.

An LA using a conventional distributed power supply control device
N system is a computer C connected to the LAN 53
Distributed power source control means C5 having a timer 51 and a timer 52a
2 and a distributed power control means D57 having a computer D56 and a timer 57a connected to the LAN 55,
Wide area network (hereinafter referred to as WAN) 54
Are connected between LANs and communicate with each other.

Here, the distributed power control means C52 has a timer 52a therein. When the distributed power control means C52 controls the power activation of the computer D56 of the other party, the computer D56 is activated after the power is activated. The timer 52a is monitored until it is started. Then, even if the power of the other party is turned on, it usually takes several minutes to several tens of minutes before the computer D56 is started and communication becomes possible.

[0008] A LAN is usually installed on a premises,
As described above, remote LANs 53 and 55 are connected by WAN.
The form of interconnection at 54 is also commonly used. The group and the machine can be checked directly in the premises, but in a remote place, it is necessary to make an inquiry by another communication means (such as a telephone).

[0009]

In the above-mentioned conventional distributed power control device, the non-response time of the other party is monitored by a timer in the communication control method. Since it takes a minute to several tens of minutes, there is a high possibility that the source recognizes a failure during that time and an error occurs.

[0010] Further, it is impossible to determine whether communication is impossible due to a failure on the communication path or power is not simply turned on, and it is difficult to confirm the remote location. The above problem can be solved by using a separate device for centrally monitoring the power supply control, but it is difficult to handle the distance, arrangement and other devices between the power supply control device and the computer. There is a problem that change is difficult.

[0011]

According to the present invention, a distributed power control apparatus using a LAN as a communication means is connected between a computer and the LAN connection apparatus when a computer is connected by the LAN connection apparatus, and performs communication and power control. In the distributed power supply control device, communication control means (A3, B8 in FIG. 1) which is connected to the LAN connection device (11 in FIG. 1) and performs communication with the computer (1, 6 in FIG. 1); Power supply control means (A in FIG. 1) for controlling power supply by communication of the control means
4, B9) and the distributed power supply control device (A5, B1 in FIG. 1)
0) has status notifying means (A2, B7 in FIG. 1) for mutually notifying the status of the computer and the distributed power control device itself via the communication control means, and the other computer is stopped. , power-of the destination computer in the stop Ri by the communication message sent from the communication control means
And start up, "No response", "Stop"
"Complete", "Starting", "Completed", etc.
It is characterized in that the activation status of the data is notified between the status notification means.

[0012]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of a distributed power control apparatus using a LAN as a communication means according to the present invention, FIG. 2 is an operation flow when a partner computer operates in the configuration of FIG. 1, and FIG. 3 is a configuration of FIG. 4 is an operation flow when the other computer is stopped, and FIG. 4 is an operation flow when a failure occurs during the operation of the other computer in the configuration of FIG.

In FIG. 1, a distributed power supply control device using a LAN as a communication means in this embodiment is a distributed power supply control means A.
5 and B10, computers A1 and B6 and LA
The N system 11 constitutes a system.

The distributed power supply control means A5 and B10 are LAN
Communication control means A3, B8 for connecting the system 11 to the computers A1, B6, state notification means A2, B7 for notifying the state of the computers A1, B6 through the communication control means A3, B8, and state notification means A2, B7. Control means A for turning on the computer in response to the notification of
4, B9.

The communication control means A3 and B8 are LA
It has addresses on N (address 1, address 2).

Next, from computer A to computer B
The operation will be described based on the case where communication is performed with respect to.

First, the case where the computer B can communicate in the operating state will be described.

1 and 2, when the computer A1 transmits a message to the LAN with the address 2 of the computer B6 through the communication control means A3, the communication control means B8 receives the message corresponding to its own address 2. At this time, since the computer B6 is in an operable state, the communication control means B8 passes the message to the computer B6 as it is. Similarly, a message is transmitted from the computer B6 to the computer A1 via the communication control means A3 and B8, and communication is normally performed. The flow of FIG. 2 shows this case.

Next, a case where the computer B6 is in a stopped state will be described.

1 and 3, when the computer A1 sends a message on the LAN with the address 2 of the computer B6 through the communication control means A3, the communication control means B8 receives the message for its own address 2, but the computer B6 stops. Medium status notification means B
7 is notified that there is a communication request from the address 1, that is, the computer A1. First, the state notifying means B7 instructs the power control means B9 to turn on the power of the computer B6.
Turn on the power. Further, the status notifying means B7 transmits a message to the effect that the request is being started to the address 1 to the effect that it is currently running on the LAN by the communication control means B8. The communication control means A3 receives the message for the own address 1. The communication control unit A3 sends the status notification message to the status notification unit A2 that has confirmed that the message is a status notification message. The status notifying means A2 notifies the computer A1 of the start-up wait (or BUSY) to the computer A1 via the communication control means A3 instead of the partner computer, and urges the computer A1 to wait or re-execute. On the other hand, since the communication control means B8 can recognize whether or not the computer B6 is in a communicable state by turning on the power, the communication control means B8 notifies the state notifying means B7 at this timing. The status notifying means B7 transmits the message in the communicable state to the status notifying means A in the same manner as the active message.
Notify 2. The status notification means A2 notifies the computer 1 of the activation of the other computer via the communication control means A3, and urges the start of retransmission. After that, transmission is performed in the same flow as in the case of the above-mentioned activated state. The flow of FIG. 3 shows this case.

Next, a case where a failure occurs in the LAN system 11 will be described.

1 and 4, when the computer A1 communicates a message on the LAN with the address 2 of the computer B6 through the communication control means A3, LA
At the time of failure of the N system 11, no message is sent to the communication control means B8 of the other party, so naturally no message is sent during startup, so that a communication timeout occurs and the failure of the LAN system 11, which is a communication path, may occur. Can be determined.

Further, if communication is not possible due to a failure on the partner computer for some reason, it can be determined by monitoring the timer at the time of receiving the active message. If the status notification means has a function of returning a message, the abnormality of the operating partner machine can be further determined.

The communication from the computer B6 to the computer A1 can be performed in the same procedure as described above.

[0026]

As described above, according to the present invention, the distributed power control apparatus using the LAN as the communication means is provided between the computers connected by the LAN, the communication control means integrated with the LAN connection apparatus, and the power control means. And communication control means
Status notification means that communicates the status of the other party via a communication.- Power-up when the communication message is received.- Status notification between the power-up status normal status notification means, Avoid communication timeout of original computer. (2) Determine communication path failure and computer startup wait state. (3) It is possible to implement on a mutually compatible network that does not have a dedicated device.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of a distributed power control apparatus using a LAN as a communication unit according to the present invention.

FIG. 2 is an operation flow when the other computer operates in the configuration of FIG. 1;

FIG. 3 is an operation flow when the partner computer is stopped in the configuration of FIG. 1;

FIG. 4 is an operation flow when a failure occurs during operation of a partner computer in the configuration of FIG. 1;

FIG. 5 is a configuration diagram of a LAN system using a conventional distributed power supply control device.

[Explanation of symbols]

 1, 6 Computers A, B 2, 7 State notification means A, B 3, 8 Communication control means A, B 4, 9 Power supply control means A, B 5, 10 Distributed power supply control means A, B 11 LAN system 51 Computer C 52 distributed power control means C 52a timer 53 LAN 54 wide area network (WAN) 55 LAN 56 computer D 57 distributed power control means D 57a timer

Claims (1)

(57) [Claims] When a computer is connected by a LAN system, a distributed power control device connected between the computer and the LAN system for performing communication and power control is provided between the computer and the LAN system. Communication control means for performing communication in, power supply control means for performing power control by communication of the communication control means,
A status notification unit for mutually notifying a status of the computer connected to the distributed power control device and the status of the distributed power control device itself via the communication control unit, wherein the communication control unit is provided when a partner computer is stopped. Powering of the destination computer by Ri during the stop in the communication message transmission from the
And start up, "No response", "Stop"
"Complete", "Starting", "Completed", etc.
Distributed power control device for a communication means LAN, wherein the notifying the start situation of over data between said state notification means.