Protection of control networks using a one-way link
First Claim
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1. A method for monitoring a process, comprising:
- receiving a signal from a sensor that is indicative of a physical attribute associated with the process;
transmitting data indicative of the received signal over a one-way link; and
receiving and processing the transmitted data from the one way link in order to monitor the process.
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Abstract
A method for monitoring a process includes receiving a signal from a sensor that is indicative of a physical attribute associated with the process and transmitting data indicative of the received signal over a one-way link. The transmitted data received from the one way link are used in monitoring the process.
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Citations
22 Claims
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1. A method for monitoring a process, comprising:
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receiving a signal from a sensor that is indicative of a physical attribute associated with the process; transmitting data indicative of the received signal over a one-way link; and receiving and processing the transmitted data from the one way link in order to monitor the process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Apparatus for monitoring a process, comprising:
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a plurality of sensors, which are configured to generate respective signals that are indicative of physical attributes associated with the process; a one-way link; and a transmission controller, which is coupled to receive the signals from the sensors and to transmit data indicative of the signals over the one-way link. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. Apparatus for monitoring a process, comprising:
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a one-way link; a transmit proxy, which is configured to collect data indicative of physical attributes associated with the process from a plurality of sensors, and to transmit the collected data over the one-way link; and a receive proxy, which is coupled to the one-way link so as to receive and mirror the data collected by the transmit proxy so as to provide the mirrored data to a computer for processing. - View Dependent Claims (17, 18)
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19. Apparatus for communication in a facility, the apparatus comprising:
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a local network, which is configured to communicate with a plurality of data sources that are deployed in the facility, so as to collect data from the data sources; and a one-way link, for conveying the collected data out of the local network to a computer outside the facility, wherein the one-way link serves as an exit from the local network for transmission of the collected data to the computer, but the local network has no entrance from outside the facility. - View Dependent Claims (20, 21, 22)
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Specification