Monitoring system, device, and method
First Claim
1. A communication control apparatus that implements control so as to receive data items sent from a plurality of terminal nodes over a first network and transmit the data items to a monitoring center over a second network, comprising:
- a communication section that communicates with the first network and second network respectively;
a processing section; and
a memory section, whereinthe processing section extracts event statuses on the basis of the data items received from the plurality of terminal nodes via the communication section, and estimates the communication condition of the second network;
the processing section selects a compression class for the data items, which should be transmitted to the monitoring center, according to the communication condition of the second network; and
the processing section determines a priority order of the data items, which should be transmitted, and a compression method on the basis of the event statuses and compression class.
1 Assignment
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Accused Products
Abstract
Provided is a monitoring system which can perform priority control in accordance with the wideband limitation. A priority/filter type selection processing unit (37) of a network interconnection device (11), which connects a local network (14) and a wide area network (10), selects a transmission data selection processing unit (38) on the basis of the priority level definitions of a transmission data in accordance with an event status, and a data compression method in association with the event status and the wide area network communication status, and selects and controls a filtering processing unit (33). As a consequence, the communication bandwidth in a wide area network is reduced.
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Citations
14 Claims
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1. A communication control apparatus that implements control so as to receive data items sent from a plurality of terminal nodes over a first network and transmit the data items to a monitoring center over a second network, comprising:
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a communication section that communicates with the first network and second network respectively; a processing section; and a memory section, wherein the processing section extracts event statuses on the basis of the data items received from the plurality of terminal nodes via the communication section, and estimates the communication condition of the second network; the processing section selects a compression class for the data items, which should be transmitted to the monitoring center, according to the communication condition of the second network; and the processing section determines a priority order of the data items, which should be transmitted, and a compression method on the basis of the event statuses and compression class. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A communication control method for a communication apparatus that includes a communication section, processing section, and memory section, that receives data items sent from a plurality of terminal nodes over a first network, and that transmits the data items to a monitoring center over a second network, wherein:
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the processing section extracts event statuses on the basis of the data items received from the plurality of terminal nodes via the communication section, and estimates the communication conditions of the first and second networks respectively; the processing section selects a compression class for the data items, which should be transmitted to the monitoring center, according to the communication conditions of the first and second networks respectively, and determines a priority order of the data items, which should be transmitted, and a compression method on the basis of the event statuses and compression class. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification