JPH06187216A - Lan terminal controller - Google Patents

Abstract

PURPOSE:To provide a LAN terminal controller whose power-OFF time can easily be adjusted so that the power source is not turned OFF during a file processing. CONSTITUTION:This LAN terminal controller 4 is provided between a host computer 2 and a local area network(LAN) for which plural terminal equipments 31, 32... are connected, and also controls an automatic power source controller 6 which performs automatic control over the power source system of the LAN 1 totally and controls a communication between the respective terminal equipments 31, 32... and the host computer 2 according to settings from a console 5. A time setting means receives the power-OFF time setting command of the automatic power source controller 6 from the console 5 and sets its power-OFF time in the automatic power source controller 6. A file saving means is notified the arrival of the power-OFF time by the automatic power source controller 6 and saves the file during processing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a LAN terminal management device which is online connected to a host computer and manages a plurality of terminal devices connected to a LAN in a bundle.

[0002]

2. Description of the Related Art A conventional LAN system includes a host computer that controls the LAN as a whole, a plurality of terminal devices connected by the LAN, a LAN terminal management device that connects the host computer and each terminal device, and a power supply for the entire system. It is composed of an automatic power supply controller that automatically controls the system.

The above-mentioned LAN terminal management device is intended to combine an operating system for managing an automatic power control device, a host computer and each terminal device so that each terminal device functions as one workstation of the host computer. Cluster management unit and LAN
It has a terminal control unit for transmitting and receiving data to and from each terminal device and a host control unit for transmitting and receiving data to and from the host computer.

That is, the host control unit has a communication processing function with the host computer, the terminal control unit has a communication processing function with a plurality of terminal devices connected to the LAN, and data from each terminal device is sent to the terminal. The control unit receives the data and transfers it to the host control unit, and the cluster management unit performs operations such as transmission from the host control unit to the host computer. Thus, LA
The N terminal management device plays a role of causing each terminal device connected by the LAN to function as one workstation of the host computer.

[0005]

However, in the LAN terminal management device used in the conventional LAN system,
In the operating system, power on the terminal management device itself according to the time set in the automatic power control device,
The disconnection control is performed, and the cluster management unit only performs task management and memory management. The cluster management unit performs task generation processing and task deletion processing for the host control unit and the terminal control unit.

As described above, since the automatic power supply control unit and the cluster management unit are not linked to each other, the automatic power supply control unit is operated while the cluster management unit, the host control unit and the terminal control unit are executing file processing. May cause the power to be cut off, which causes file corruption.

As described above, in the conventional LAN terminal management device, the power supply may be cut off by the automatic power supply control device during file processing, which causes file destruction.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to easily adjust the power-off time so that the power is not cut off during file processing.
It is an object to provide an N terminal management device.

[0009]

The present invention is provided between a host computer and a local area network (LAN) to which a plurality of terminal devices are connected.
In the LAN terminal management device that manages the automatic power control device that comprehensively automatically controls the power supply system of the device, and manages the communication between each terminal device and the host computer according to the settings from the console, Time setting means for setting a power-off time to the automatic power control device in response to a power-off time setting command of the power control device, and saving a file being processed upon receiving a notification of the power-off time reaching from the automatic power control device It is characterized in that a file saving means is provided.

[0010]

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

FIG. 1 shows a LAN according to an embodiment of the present invention.
2 illustrates a configuration of a terminal management device. LA shown in FIG.
N system is LAN1, which constructs a local network,
A host computer 2 that totally controls the LAN 1, a plurality of terminal devices 31, 32 connected to the LAN 1,
..., host computer 2 and terminal devices 31, 32, ...
The LAN terminal management device 4 for connecting the LAN terminal management device 4 and the management information notified from the LAN terminal management device 4 are displayed on the monitor,
The N terminal management device 4 comprises a console 5 for giving control information according to an operator's operation, and an automatic power supply control device 6 for automatically controlling the power supply system of the entire system.

The LAN terminal management device 4 includes an operating system 41 for managing the automatic power supply control device 6,
The host computer 2 and the respective terminal devices 31, 32, ... Are combined and the respective terminal devices 31, 32, ... Are made to function as one workstation of the host computer 2, and a cluster management unit 42 and LAN 1 are used. Information is exchanged between the terminal control unit 43 for exchanging data with each terminal device 31, 32, ..., The host control unit 44 for exchanging data with the host computer 2, the console 5, and the cluster management unit 42. It has a console control unit 45 for transmitting and receiving.

That is, the host control unit 44 has a communication processing function with the host computer 2, and the terminal control unit 43 has a communication processing function with a plurality of terminal devices 31, 32, ... Connected to the LAN 1. The cluster management unit 42 receives data from each of the terminal devices 31, 32, ... At the terminal control unit 43, passes the data to the host control unit 44, and transmits the data from the host control unit 44 to the host computer 2. Thus, the terminal management device plays a role of causing each of the terminal devices 31, 32, ... Connected to the LAN 1 to function as one workstation of the host computer 2.

On the other hand, the operating system 41
Conventionally controls the power on / off of the terminal management device 4 itself according to the time set in the automatic power control device 6,
The cluster management unit 42 only performed task management and memory management, but here the operating system 4
1 and the cluster management unit 42, an OP (operating) interface unit 46 is provided so that the cluster management unit 42 can be notified that the power-off time has been reached.

The operation mode of the above configuration will be described below with reference to FIG.

Now, it is assumed that the LAN terminal management device 4 is activated in a state where the power-off time is set in the automatic power control device 6. When the power-off time is reached, the automatic power supply controller 6 notifies the operating system 41 to that effect. This operating system 41
Activates the OP interface unit 46 to notify the cluster management unit 42 of this information.

The cluster management unit 42, which has been notified of the arrival of the power-off time, sends a message of the arrival of the power-off time to the console 5 through the console control unit 45, and displays the message. Furthermore, the host controller 44 and the terminal controller 43
Is also notified that the power-off time has arrived.

The host control unit 44 and the terminal control unit 43, which have been notified of the arrival of the power-off time, perform the process of closing the file currently used and the process of closing the communication line currently used, respectively, and the process is completed. If so, the cluster management unit 42 is notified of the completion of processing.

Upon receiving the processing completion notification from the host control unit 44 and the terminal control unit 43, the cluster management unit 42 performs the task deletion process of the host control unit 44 and the terminal control unit 43 to delete the task, and the deletion is completed. In that case, the OP interface unit 46 is activated to notify the operating system 41 of the completion of power-off preparation.

The operating system 41 which has received the power-off preparation completion notification gives a power-off instruction to the automatic power control device 6. Upon receiving this instruction, the automatic power supply control device 6 turns off the power of the entire system including the LAN terminal management device 4.

Further, the setting / changing of the power-off time in the automatic power control device 6 can be realized by the operator operating the console 5 to input a command for setting the power-off time. That is, the input power-off time setting command is input from the console control unit 45 to the cluster management unit 42.
To the power off time setting notification.

Upon receiving the power-off time setting notification, the cluster management unit 42 activates the OP interface unit 46 and sends a power-off time setting notification to the operating system 41. The operating system 41 that has received the power-off time setting notification sets or resets the power-off time in the automatic power control device 6.

Further, when a failure occurs in the communication line during the operation of the system and it becomes necessary to terminate the communication process, the operator inputs a command for ending the communication process from the console 5. This communication processing end command is notified from the console control unit 45 to the cluster management unit 42.

Upon receipt of the communication processing end notification, the cluster management unit 42 notifies the host control unit 44 and the terminal control unit 43 of the communication processing end. The host control unit 44 and the terminal control unit 43 which have received the communication processing end notification perform post-processing for interrupting the communication processing, and the host computer 2
, And the communication state with the terminal devices 31, 32, ... Connected to the LAN 1 is initialized. In this way, the communication process can be ended.

In the operation described above, the processing of the OP interface unit 46 is summarized as shown in FIG.

That is, this OP interface unit 4
When activated, the device 6 checks whether or not it is a notification that the operating system 41 has reached the power-off time (step S1). If it is the power-off time arrival notification from the operating system 41 (YES in step S1),
The OP interface unit 46 notifies the cluster management unit 42 to that effect (step S2), and ends the process.

If it is not the power-off time arrival notification (NO in step S1), the OP interface unit 46 checks whether it is a notification from the cluster management unit 42 (step S3). If it is the power-off time setting notification from the cluster management unit 42, the OP interface unit 46 notifies the operating system 41 of the power-off time setting (step S4), and the process is terminated.

If the power-off preparation completion notification is sent from the cluster management unit 42, the OP interface unit 46 sends a power-off preparation completion notification to the operating system 41 (step S5), and the process ends.

Therefore, in the local area network system having the above configuration, the LAN terminal management apparatus is provided with the OP interface section 46 to notify the cluster management section 42 from the operating system 41 of the power-off time, and through this cluster management section 42. Since the file avoidance process is performed before turning off the power,
The power supply is not cut off by the automatic power supply control device 6 during file processing in the LAN terminal management device 4, and the cause of file destruction can be eliminated. Further, the power-off time can be changed from the console 5, and the operability can be improved.

The present invention is not limited to the above embodiment, and for example, the terminal used as the console 5 may be replaced with a terminal device connected to the LAN 1. Needless to say, various modifications can be made without departing from the scope of the present invention.

[0031]

As described above, according to the present invention, it is possible to provide a LAN terminal management device capable of easily adjusting the power-off time so that the power is not turned off during file processing.

[Brief description of drawings]

FIG. 1 is a block diagram showing a LAN terminal management device according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the OP interface unit in the operation of the same embodiment.

[Explanation of symbols]

 1 LAN (local area network) 2 host computer 31 terminal device 32 terminal device 4 LAN terminal management device 41 operating system 42 cluster management unit 43 terminal control unit 44 host control unit 45 console control unit 46 OP interface unit 5 console 6 automatic power control apparatus

Claims (3)

[Claims] 1. An automatic power control device is provided between a host computer and a local area network (LAN) to which a plurality of terminal devices are connected, and manages an automatic power control device that comprehensively automatically controls a power supply system of the LAN. In a LAN terminal management device that manages communication between each terminal device and the host computer according to settings from the console, the automatic power control device receives a power-off time setting command of the automatic power control device from the console. A LAN terminal management device, characterized in that: a time setting means for setting a power-off time and a file saving means for saving a file being processed in response to a notification that the power-off time has arrived from the automatic power control device. . 2. An automatic power control device is provided between a host computer and a local area network (LAN) to which a plurality of terminal devices are connected, and manages an automatic power control device that comprehensively automatically controls a power supply system of the LAN. A LAN terminal management device that manages communication between each terminal device and the host computer according to settings from the console, manages the automatic power supply control device, and notifies the automatic power supply control device of the power-off time An operating system for receiving and resending, a terminal control unit for exchanging file data with each terminal device through the LAN, a host control unit for exchanging file data with the host computer, the terminal control unit and the The host control unit manages the cluster of the host control unit, receives the power-off time arrival notification, and A cluster management unit for saving each file of the end control unit, a console control unit for exchanging information between the console and the cluster management unit, an interface between the operating system and the cluster management unit, and the operating system. A LAN terminal management device, comprising: an interface unit that sends a notification of reaching the power-off time from the system to the cluster management unit. 3. The console control unit has a function of sending power cutoff time setting information input from the console and communication processing end information to the cluster management unit, and management information from the cluster management unit to the console. The cluster management unit has a function of setting a power-off time of the automatic power control device through the interface unit and the operating system when receiving information about power-off time setting from the console control unit. And a function of notifying the host management unit and the terminal control unit of the communication processing end when receiving the information of the communication processing end from the console control unit, and interrupting the communication processing to the host management unit and the terminal control unit. The LAN terminal management device according to claim 2, wherein