Abstract: The discrete data fusion with integral discrete guidance in internet of things was researched．The data fusion process in discrete manufacturing system was the first problem that should be solved under various different things node．In traditional discrete based manufacturing system,the data was processed with distributed method,and data of each node was treated alone,so it cannot integrate all the advantages of data to achieve better overall efficiency．The discrete data fusion with integral discrete guidance in internet of things was proposed,the networking technology in distributed system was used for discrete manufacturing system under unified data collection terminals and integrated,and then the method of discrete points was taken out to acquire all the differential data processing,with which the effective integration of all data was achieved．A group of 100nodes six types of data was taken as target to test the performance,and the experimental result shows that under discrete data fusion with integral discrete guidance,the data is fused well,and the spectral distribution of the data is even,so the algorithm has good application value.

Key words: Integral discrete guidance,Internet of things,Discrete data fusion