Title :
A Markovian model for predicting the impact of observation conditions on the reliability of sensory systems
Author_Institution :
Sch. of Eng., Guelph Univ., Ont., Canada
Abstract :
To be reliable a sensory system must be able to determine the likelihood of success of the different sensing strategies at its disposal. For this reliability estimation to be meaningful, it has to be dynamic so as to respond to any changes in the observation conditions. It is therefore desirable to develop assessment methods that can continuously evaluate the reliability of potential sensory strategies taking in consideration changes in the observation conditions. This paper proposes a novel approach for capturing the impact of observation conditions on the reliability of sensory systems. The approach revolves around a new information variation measure which provides the sensory system with a quantitative measure of the quality of the information gathered by its sensors. Since it can predict a more realistic estimate of the success rate based on the state of the observation conditions, the model provides valuable information that can be used to perform more effective sensor planning based on reliability considerations, and hence has the potential to enhance the capability of sensory systems in dealing with unstructured applications
Keywords :
Markov processes; fault tolerance; intelligent sensors; reliability theory; sensor fusion; Markovian model; information quality; information variation measure; multisensory systems; observation condition impact prediction; reliability estimation; sensor planning; sensory strategies; sensory system reliability; Area measurement; Cellular neural networks; Intelligent robots; Intelligent sensors; Intelligent systems; Predictive models; Reliability engineering; Reliability theory; Sensor systems; State estimation;
Conference_Titel :
Intelligent Robots and Systems, 1998. Proceedings., 1998 IEEE/RSJ International Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-4465-0
DOI :
10.1109/IROS.1998.724834