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US 6,704,899 B1Granted
Method and device for secure transmission of data signals over a bus system
AssigneeSick AG
InventorsFranz Josef Dold, Jens Niehus, Martin Geiler
Life of this patent
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AssigneeSick AG
InventorsFranz Josef Dold, Jens Niehus, Martin Geiler
Estimating the term…
A method of secure transmission of data signals over a bus system is described, where the data signals are generated by at least one sensor and are transmitted over the bus system to at least one actuator. The data signals generated by at least one of the sensors are encoded according to a predetermined secure encoding method before being introduced into the bus system. The encoded data signals are fed into the bus system and transmitted over it. The encoded data signals are received by at least one of the actuators and decoded according to a decoding method corresponding to the predetermined secure encoding method. In addition, an electronic monitoring system is described for carrying out this method.
A method for the secure transmission of data signals between at least one sensor and at least one actuator over a bus system comprising generating the data signals at the at least one sensor, encoding the data signals with a predetermined security code to form encoded data signals, thereafter feeding the encoded data signals directly into the bus system and transmitting the encoded data signals over the bus system to the at least one actuator, and decoding the encoded data signals at the at least one actuator in accordance with the predetermined security code.
An electronic monitoring system for the secure transmission of data signals comprising at least one sensor for generating the data signals and at least one actuator for receiving and responding to the data signals, a bus system connecting the at least one sensor and the at least one actuator for data transmission so that the at least one actuator can be controlled by the at least one sensor, a secure encoding unit associated with the at least one sensor for encoding the data signals generated by the at least one sensor with a predetermined security code before feeding the encoded data signals directly into the bus system, the bus system transmitting the encoded data signals to the at least one actuator, and a secure decoding unit associated with the at least one actuator for decoding the encoded data signals received by the at least one actuator from the bus system.
Dependencies are inferred from the claim text.