Patent ID: 6711713
Filing Date: 2004-03-23
Classification: G05B,G08B,H04L

Abstract:
A method for detection, transmission and processing of safety-related signals using at least one detection unit, a transmission path and a signal processor, comprising:detecting safety-relevant signals on at least two physical channels at a transmitter end, the safety-relevant signals including signal data, the safety-relevant signal including redundant signals; transmitting the detected signal data by radio on at least two logical channels to a receiver end using a safety technique; processing and monitoring the received signal data on at least two physical channels at the receiver end; producing the redundant signals using at least duplicated electromechanical or electronic input elements; and producing additional protection data by each detection unit from the signal data for monitoring purposes, the protection data allowing monitoring for at least one of: i) incorrect transmitters or incorrect receivers, ii) adulteration of the safety-relevant data, iii) loss of data, and iv) repetition of data.