MONITORING CONTROL SYSTEM

摘要

In order to deal with security threat in a monitoring control system having a plurality of networks different in security level, the monitoring control system performs unidirectional physical communication between a monitoring control device connected to a network with a higher security level and a monitoring device connected to a network with a lower security level via a sender and a receiver, thereby securing safety of the network with the higher security level.

主权项

1. A monitoring control system comprising:
a sensor which detects operation conditions of equipment to be controlled; a driving device which adjusts the operation conditions of said equipment; a monitoring control device which operates said driving device to control the operation conditions of said equipment based on the output of said sensor; a monitoring device which is capable of being connected to an outside network such as the Internet, and which is connected to said monitoring control device to monitor the operation conditions of said equipment; and a first sender and a first receiver, which are provided between said monitoring control device and said monitoring device to communicate in only one direction from said monitoring control device to said monitoring device, wherein data communication is performed only from a network with a higher security level to a network with a lower security level.