| 摘要 |
<p>PURPOSE: To provide the time synchronizing system for network which considerably improves the synchronism precision of a clock by performing collective maintenance and management of time correction data for local clock in a master node and transmitting and receiving the time data for synchronous processing by normal data transmission and reception. CONSTITUTION: The master node preliminarily stores correction data of transmission delay for each node in a correction value management table 17 and builds time data for synchronous processing, where transmission delay is corrected, in transmission data by a data transmission processing part 11 at each time of data transmission and transmits these data, and each node synchronizes a local clock 24 by this time data for synchronous processing and returns time data of the local clock to the master node as response time data at the time of response, and the master node corrects the correction value in a correction value management processing part 14 in accordance with this response time data and the time of a system clock 12.</p> |
