Patent ID: 9625894
Date: 2017-04-18
CPC Classifications: G05B,G06F

Claim:
1. A method of electronically controlling a device comprising: controlling a device using a first primary control microprocessor under normal conditions; controlling said device using a second primary control microprocessor when said first primary control microprocessor is unhealthy and said second primary control microprocessor is healthy; controlling said device using a first secondary control microprocessor or a second secondary control microprocessor when said first primary control microprocessor and said second primary control microprocessor are unhealthy; each of said first primary control microprocessor, said second primary control microprocessor, said first secondary control microprocessor, and said second secondary control microprocessors that is not controlling said device accepting a channel in-control signal from one of said first primary control microprocessor, said second primary control microprocessor, said first secondary control microprocessor, and said second secondary control microprocessor wherein the microprocessor originating the channel in-control signal is controlling said device; and wherein said channel in-control signal prohibits each of said first primary control microprocessor, said second primary control microprocessor, said first secondary control microprocessor, and said second secondary control microprocessors that is not controlling said device from asserting control.