MONITORING SYSTEM, MONITORING APPARATUS, MONITORING-TARGET APPARATUS, MONITORING METHOD AND COMPUTER-READABLE RECORDING MEDIUM HAVING STORED THEREIN MONITORING PROGRAM

摘要

A monitoring system includes a monitoring apparatus and a monitoring-target apparatus connected therewith via a network. The monitoring apparatus includes an inquirer that inquires as to whether or not the monitoring-target apparatus is capable of obtaining a status thereof. The monitoring-target apparatus includes a responder that transmits, when the monitoring-target apparatus is in a first status in which the status is obtainable, a response to the inquiry. The monitoring apparatus further includes a receiver that receives the response to the inquiry, and a requester that requests, when the receiver receives the response, the monitoring-target apparatus transmitted the received response to obtain the status of the monitoring-target apparatus. The monitoring-target apparatus further includes a communication controller that does not respond to the inquiry and the monitoring-target apparatus is in a second status in which the status is not obtainable, and that maintains the local monitoring-target apparatus in the second status.

主权项

1. A monitoring system comprising:
a monitoring apparatus; and a monitoring-target apparatus connected with the monitoring apparatus via a network, wherein: the monitoring apparatus comprises an inquirer that inquires whether or not the monitoring-target apparatus is capable of obtaining a status thereof; the monitoring-target apparatus comprises a responder that transmits, when the monitoring-target apparatus is in a first status in which the status is obtainable, a response to the inquiry when the monitoring-target apparatus receives the inquiry; the monitoring apparatus further comprises: a receiver that receives the response to the inquiry transmitted from the monitoring-target apparatus; and a requester that requests the monitoring-target apparatus having transmitted the received response to obtain a statement of the monitoring-target apparatus when the receiver receives the response; and the monitoring-target apparatus further comprises a communication controller that does not respond to the inquiry when the monitoring-target apparatus receives the inquiry and the monitoring-target apparatus is in a second status in which the status is not obtainable, and that maintains the monitoring-target apparatus in the second status.