D-S Algorithm In Grain Situation Monitoring Information Fusion System Application

Grain storage critical to our country's economy, but in grain storage process, because the measures mismanagement, lead to a lot of grain loss, so in order to ensure grain storage security, it is timely, accurately assess grain quality, in order to take corresponding measures to reduce grain storage process loss.This paper by using existing grain situation of testing technology, the influence of grain storage system factor affecting detection, to make up for the impact factor testing on only a single sensors to collect information of inaccurate, incomplete or uncertainty, easy to cause the information given produces deviation or even the wrong conclusions. And multi-sensor has many advantages, such as: expanded space and time coverage, increased the system reliability, improve the reliability of system, improve the space redundancy, reduce the system fuzziness, added to the system and viability. Through the multi-sensor information fusion technology, through to the storage of the impact factor for storage detection, influence factors for the further development of judgment, the actual application system, and lay the foundation for storage for improving quality, evaluate safety, scientific storage technology level provides a possible.This paper is mainly the more sensors to collect data, through the reasonable algorithm, and then get information fusion of grain consistency explain and described. Influence factors mainly storage silo knot dew, grain piles fever, grain mildew and storage pest, and these storage by several factors affecting factors are interconnected, interaction results. Because D-S evidence theory can will "don't know" or "not sure" and the evidence theory to distinguish, the probability is trust function not to measure, through as the probability of some time to build trust function to constraints, without instructions accurate of the elusive probability, and systematic theoretical evidence theory knowledge, already can handle the uncertainty caused by randomness, and can handle fuzziness of uncertainty caused by etc, using D-S gathering data fusion algorithm for feature extraction, pattern recognition, relevance, synthesis of such steps, get a reasonable and accurate one time storage condition. Matlab software simulation, get reasonable and accurate storage factors (state) to judge, then the storage quality for further development, to assess the quality assessment actual application system silo lay a solid foundation. The key of which is to decide appropriate information fusion algorithm. Implementation of projects for further development, will lay the foundation, practical application system for China to enhance the technical level of grain storage to provide a new way. Quality assessment for further development storage application system that would establish a solid foundation.Dempster-shafer information fusion in building identified frame is based on the actual operation personnel stabing the measures and the establishment, fusion results and the practical is in line.