US 5,513,341 A · Supervisory system for network equipments

Abstract

A supervisory system for supervising equipments communicating with each other via communication lines in a network, the supervisory system includes a plurality of supervisory devices, each of which devices is used for supervising a plurality of equipments in the network; and a controller for controlling the plurality of supervisory devices so that one of the plurality of supervisory devices performs a supervising operation for the plurality of equipments in the network. The controller includes a determination unit for determining whether or not each of the plurality of supervisory devices is operating normally; an instruction unit for supplying either a first instruction or a second instruction to each of the plurality of supervisory devices based on a determination result obtained by the determination unit, the first instruction indicating that a supervisory device to which the first instruction is supplied is to be active in the supervisory operation, the second instruction indicating that a supervisory device to which the second instruction is supplied is to be inactive in the supervisory operation; and a selecting unit for selecting from the plurality of supervisory devices a supervisory device to which the first instruction is supplied, so that the supervisory device selected by the selecting unit supervises the plurality of equipments in the network in accordance with the first instruction.

Claims12

Dependent claims

A supervisory system for supervising operations of equipments communicating with each other via communication lines in a network, said supervisory system comprising:

a plurality of signal processing supervisory devices for supervising the operations of equipments in the network;
and
control means, coupled to said supervisory devices, for receiving therefrom status signals indicative of a proper or non-proper operation status of said plurality of supervisory devices and for generating control signals, for controlling said plurality of supervisory devices so that one of said plurality of supervisory devices performs a supervising operation for said plurality of equipments in the network, wherein said control means comprises:
signal processing determination means for analyzing said status signals and determining whether or not each of said plurality of supervisory devices is operating properly in accordance with said status signals;
instruction data supply means, coupled to the signal processing determination means, for supplying either a first instruction data or a second instruction data to each of said plurality of supervisory devices based on receipt of a signal indicative of a determination result from said signal processing determination means, said first instruction data indicating that a supervisory device is active in the supervisory operation, said second instruction data indicating that a supervisory device is inactive in the supervisory operation;
and
coupling means for coupling a supervisory device to which said first instruction data is supplied to the equipments so that the supervisory device coupled to the equipments by said coupling means performs the supervisory operation.

4 more elements

A supervisory system for supervising operations of equipments communicating with each other via communication lines in a network, said supervisory system comprising:

a first supervisory device for supervising operations of a plurality of equipments in the network;
a second supervisory device for supervising operations of said plurality of equipments in the network;
and
control means, coupled to said first and second supervisory devices, for receiving therefrom status signals indicative of a proper or non-proper operation of said first and second supervisory devices for generating control signals, for controlling said first and second supervisory devices so that one of said supervisory devices performs a supervising operation for said plurality of equipments in the network, wherein said control means comprises:
signal processing determination means, connected to the control means, for determining whether or not each of said first and second supervisory devices is operating properly, in accordance with said status signals;
instruction data supply means, connected to the signal processing determination means, for supplying either a first instruction data or a second instruction data to each of said first and second supervisory devices based on receipt of a signal indicative of a determination result from said signal processing determination means, said first instruction data indicating that a supervisory device is active in the supervisory operation, said second instruction data indicating that a supervisory device is inactive in the supervisory operation;
and
coupling means for coupling one supervisory device to which said first instruction data is supplied to the equipments so that the supervisory device coupled to the equipments by said coupling means performs the supervisory operation.

5 more elements

Dependencies are inferred from the claim text.

Supervisory system for network equipments

Life of this patent

Supervisory system for network equipments

Life of this patent

Abstract

Claims12