JPH0522313A - Terminal monitoring system for local area network system - Google Patents

Abstract

PURPOSE:To allow the system to discriminate whether a terminal equipment is in a stopping state, in the start state or in the operating state due to power interruption by issuing a command for state confirmation to plural terminal equipments at a constant interval of time. CONSTITUTION:A monitoring device 1 activates a collection command issuing device 12 based on a clock 16 at a constant interval of time in order to monitor the state of a terminal equipment of a LAN system to issue a terminal state confirming command used for collecting the state of the terminal equipment. Then the collection command issuing device 12 issues the request of confirmation of the state of the terminal equipment to all terminal equipments 7, 8, 9 managing a terminal equipment address managing device 14 via a network access device 15. The equipment 1 discriminates whether the terminal equipment is in the stopping state, in the activating state or in the operating state due to power interruption by analyzing a reply state from the terminal equipment receiving the command for state confirmation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal monitoring system for a local area network system.

[0002]

2. Description of the Related Art A conventional terminal area monitoring system for a local area network system only indicates whether or not the terminal is in operation. However, the monitoring device could not respond because it had not been started up yet, and the monitoring device could not distinguish the terminal from the stopped state and determined that the terminal was in the stopped state.

[0003]

In the conventional terminal area monitoring system of the local area network system described above, when the terminal is in operation, it responds to the status confirmation operation from the monitoring apparatus because it has not been started yet. I can't
There is a problem in that the monitoring device cannot distinguish from the terminal stopped state and must judge it as the terminal stopped state, or it has to go to the place where the device is actually installed and judge it.

An object of the present invention is to provide a terminal monitoring method for a local area network system, which enables a monitoring device to determine whether the terminal is in a stopped state, an activated state, or an operating state due to power off. is there.

[0005]

A terminal monitoring method for a local area network system according to the present invention is a terminal monitoring method for a local area network system in which a plurality of terminals and one monitoring device are connected to the same transmission path. , The monitoring device issues a command for state confirmation to the plurality of terminals at regular time intervals, analyzes the response status from the terminal that receives the command for state confirmation, and stops the terminal due to power failure This is a configuration for determining whether it is in a state, a starting state, or an operating state.

A terminal monitoring method for a local area network system according to the present invention comprises a collection command issuing mechanism for issuing a command for the monitoring device to collect the terminal status at regular intervals,
A terminal status monitoring mechanism that monitors the status of the terminal, a terminal address management mechanism that manages the network address of the terminal, a network access mechanism that activates the local area network system, and a collection command issuing mechanism that is activated at regular intervals. The clock may be provided.

A terminal monitoring method for a local area network system according to the present invention comprises a network access mechanism capable of starting a local area network system and responding to a terminal status confirmation command, and an initial program loading mechanism for starting the terminal when the power is turned on. And a network system mechanism controlling all processing in the terminal.

[0008]

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

FIG. 2 is a block diagram showing the overall construction of an embodiment of the present invention.

The local area network system of the present invention is configured so that the monitoring device 1 monitors the states of all the terminals 3, 4, 5, 6, 7, 8, 9 on the transmission path 2 to which the monitoring device 1 is connected. is there.

FIG. 1 is a block diagram of a monitoring device and a terminal for explaining one embodiment of the present invention in detail.

First, the monitoring device 1 issues a collection command issuing mechanism 12 which issues a command for collecting the state of a terminal at regular intervals.
A terminal status monitoring mechanism 13 for monitoring the state of the terminal, a terminal address management mechanism 14 for managing the network address of the terminal, a network access mechanism 15 for activating the local area network system, and a collection command issuing mechanism 12 for a fixed time. And a clock 16 that starts each time.

Next, the transmission line 2 has a connection mechanism 7 for each terminal.
1, 81, 91 are provided.

Further, the terminal originally has a network access mechanism that can start the local area network system and can respond to the terminal status confirmation command, an initial program loading mechanism that starts the terminal when the power is turned on, and all processing in the terminal. However, in order to clarify the explanation, the terminal 7 is brought into a terminal stop state when the power is turned off and therefore the internal configuration is not shown, and the terminal 8 is When the power is turned on, it is in an activated state. Therefore, a network access mechanism 82 and an initial program load mechanism (hereinafter referred to as an IPL mechanism) 83 are displayed, and the terminal 9 is in an operating state.
Therefore, the network access mechanism 92 and the network system mechanism 93 are displayed.

Next, the operation will be described.

In order to monitor the terminal status of the local area network system, the monitoring device 1 activates the collection command issuing mechanism 12 by the clock 16 at regular time intervals and issues a terminal status confirmation command for collecting the terminal status. . Then, the collection command issuing mechanism 12 requests all terminals 7, 8, 9 (excluding those not shown) managed by the terminal address management mechanism 14 to check the terminal status via the network access mechanism 15. To issue.

In this case, since the terminal 7 is in a terminal stopped state due to power-off, it is not possible to send a terminal state confirmation command from the transmission line 2 to the terminal 7 via the connection mechanism 71. In this case, the monitoring device 1 cannot receive the response to the terminal state confirmation command from the terminal 7 even after a certain period of time elapses. Therefore, the monitoring circuit 1 determines that the terminal 7 is in the stopped state (for example, the power is off). To do.

Since the terminal 8 is being activated, the IPL mechanism 83
The initial program is being loaded from, and the network system mechanism has not been started yet. Therefore, the network access mechanism 82, which becomes operable upon power-on, says that its own terminal is still loading the initial program until the IPL completion notification is sent from the network system mechanism activated by the initial program load. Then, a notification to that effect is sent to the monitoring device 1.

Since the terminal 9 is in the operating state, the network system mechanism 93 transmits a response indicating that the terminal state is operating in response to the terminal state confirmation command received via the network access mechanism 92.

As described above, according to the present invention, it becomes possible to monitor the status of all terminals of the local area network system from the monitoring device 1, and in particular, it is possible to judge whether the terminals are operating, stopped or starting. It becomes easier and there is no need to go to the installation location of the terminal to check.

[0021]

As described above, according to the present invention, the monitoring device issues a collection command issuing mechanism for issuing a command for collecting the terminal status at regular time intervals, and a terminal status monitoring mechanism for monitoring the terminal status. A terminal address management mechanism that manages the network address of the terminal, a network access mechanism that activates the local area network system, and a clock that activates the collection command issuing mechanism at regular intervals are provided, and the terminal activates the local area network system. By providing a network access mechanism capable of responding to a terminal status confirmation command, an initial program loading mechanism for starting the terminal when the power is turned on, and a network system mechanism for controlling all processing in the terminal, Determine whether the terminal is in the stopped state, the activated state, or the operating state when the power is off. Effect that it becomes possible to there.

[Brief description of drawings]

FIG. 1 is a block diagram of a monitoring device and a terminal for explaining an embodiment of the present invention in detail.

FIG. 2 is a block diagram showing the overall configuration of an embodiment of the present invention.

[Explanation of symbols]

1 Monitoring Device 2 Transmission Lines 3, 4, 5, 6, 7, 8, 9 Terminal 12 Collection Command Issuing Mechanism 13 Terminal Status Monitoring Mechanism 14 Terminal Address Management Mechanism 15 Network Access Mechanism 16 Clock 71, 81, 91 Connection Mechanism 82, 92 Network access mechanism 83 Initial program load mechanism (IPL mechanism)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshihiro Kamiya             2-17-11 Takanawa, Minato-ku, Tokyo             Software Co., Ltd.

Claims (3)

[Claims] 1. In a terminal monitoring method of a local area network system in which a plurality of terminals and one monitoring device are connected to the same transmission line, the monitoring device is in a status to the plurality of terminals at regular intervals. Issuing a command for confirmation, analyzing the response status from the terminal that received the command for status confirmation, and determining whether the terminal is in the stopped state, the activated state or the operating state due to power off. Characteristic Local area network system terminal monitoring method. 2. A collection command issuing mechanism for issuing a command for the monitoring device to collect the terminal status at regular time intervals, a terminal status monitoring mechanism for monitoring the status of the terminal, and a terminal for managing the network address of the terminal. An address management mechanism,
2. The terminal monitoring method for a local area network system according to claim 1, further comprising a network access mechanism for activating the local area network system and a clock for activating the collection command issuing mechanism at regular intervals. 3. A network access mechanism that enables a terminal to activate a local area network system and respond to a terminal status confirmation command, an initial program loading mechanism that activates the terminal when power is turned on, and controls all processing in the terminal. 2. A terminal monitoring system for a local area network system according to claim 1, further comprising a network system mechanism.