Monitoring of a Milk Manufacturing Workshop Using Chronicle and Fault Tree Approaches

Developments presented in this paper are devoted to the monitoring of manufacturing job-shops with time constraints and with assembling tasks. A new method for monitoring combining chronicles with fault tree analysis is proposed. The purpose of the proposed approach is to explain in details what is happening on the system and to help operators identifying failures in order to avoid a damage of the process or an accident with human beings. Finally, to demonstrate the effectiveness and accuracy of the monitoring approach, an application to a milk production unit is outlined. The results show that the monitoring approach allows keeping on producing, by on-line diagnosis, while providing correct quality of the manufactured products.