Patent ID: 8762788

Claim:
A redundancy control system having a redundant processing device of a comparison redundancy type that compares first computational data of a first processing device and second computational data of a second processing device that receive a same control data and that execute a same computational processing in parallel and that returns coincident computational data, said redundancy control system comprising: (1) a control device, wherein (i) said first processing device generates said first computational data in accordance with said control data and generates first generated data using a first preset generation algorithm for error detection with respect to said first computational data; said second processing device generates said second computational data in accordance with said control data and generates second generated data using a second preset generation algorithm for error detection with respect to said second computational data; and, in addition, said first processing device comprises: a redundant processing device that compares said first computational data and said second computational data, and outputs said coincident computational data and said first generated data and said second generated data; and (ii) a first transmission device that receives transmission data including said computational data and said first generated data and said second generated data, and sends these from said redundant processing device to a transmission source of said control data; and (2) a receiving device that comprises: a second transmission device that transmits said control data to said first transmission device and that receives said transmission data from said first transmission device; and a third processing device that respectively generates: third generated data and fourth generated data from received said computational data, and said first preset generation algorithm and said second preset generation algorithm, identifies the presence of an error in said received computational data by comparison of received said first generated data and said third generated data, and received said second generated data and said fourth generated data, and identifies a presence of failure of said first processing device or said second processing device, wherein the presence of the error in said received computational data is identified using a generation algorithm of each processing device that generates computational data.