| 摘要 |
Provided are an apparatus and a method which can transmit an event having occurred in a controlled device to a control device without loss or delay in a web-based system. The apparatus includes an event occurrence detector which detects the occurrence of an event; an event storage unit which stores an occurred event; a response transmitter which transmits a first response including the occurred event to a control device according to a request of the control device; a time measurement unit which measures a time elapsed after the request or the response, and a control unit which transmits a second response to the control device, which selectively asks the control device to re-request a report of an occurred event according to the measured time.
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