| 摘要 |
<P>PROBLEM TO BE SOLVED: To strengthen the security of communication between a master station and a slave station in a distribution line remote monitor control system. <P>SOLUTION: In this system, there are determined master station information for identifying a master station, information network class information for identifying each of a plurality of information networks, a predetermined route connecting the master station and each of slave stations in the plurality of information networks, and route information for identifying this predetermined route. Each of the slave stations stores in advance the master station information, route information and information network class information corresponding to the route information. The master station contains the master station information, route information and information network class information corresponding to the route information in monitor and control information and transmits the monitor and control information to a slave station. The slave station collates the master station information, the route information and the information network class information contained in the received monitor and control information with the stored master station information, route information and information network class information to determine whether the received monitor and control information is correct or not. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
