An efficient algorithm for intelligent instrumentation system

The reconfiguration of sensor svstems to solve estimation or control problem is one of the most important tasks in the design of process instrumentation. This paper proposes an algorithm, which guarantees the availability of all state variables even in the case of lost sensors. The variable observability is considered to be necessary for the process supervision of the system. Minimal and redundant sensor sets are organized into an oriented graph, which contains all the possible reconfiguration paths for which those variables remain observable. Based on redundancy degrees criteria, an optimal reconfiguration will be used to observe and reconstruct lost information. An example illustrates the proposed algorithm.