3.2 Total evaluation function G j =lF (j) +LT ij In this online control, the G j of each tool is calculated for each round, and the tool with the smallest G j is selected. All types of sister knives can be selected by the above methods to complete the control of all tool flows. Mean Control Tool Flow Optimization Example and Results Previous page next page Seaweed Extract,Organic Fertilier,Foliar Application Lower Blood Pressure Co., Ltd. , http://www.bjorganicfertilizer.com In the middle G j ---- total evaluation function of tool j l ---- adjustment factor, l ≥ 1
The following examples are optimized using the mean control method. Each example gives a sequence of requirements for a number of parts for a type of sister knife. The length of the sequence is the number of times the part is required for that type of tool, and each demand has a period of use. Each tool has a service life. In the example, the total part is used for the tool slightly longer than the total life of the tool. Case number 1 2 3 4 5 Number of tools 3 3 19 30 30 Maximum tool life (min) 40 85 91 91 440 Minimum tool life (min) 25 twenty one 20 20 twenty four Average tool life (min) 33.667 51 51.15 56.4 120 Tool life mean square error 120 2072 9924 15471 219807 Total tool life (min) 101 153 972 1692 3602 Number of parts required for the tool (times) 10 10 46 76 200 Maximum usage time (min) 13 twenty three 40 43 37 Minimum usage time (min) 8 11 10 10 10 Average usage time (min) 10.4 16.6 20.24 20.842 20.16 Time-averaged variance 0.6517 1.5 0.9769 0.7761 0.4865 Tool maximum remaining life (min) 5 4 13 15 13 Tool minimum remaining life (min) 0 2 0 0 0 Tool average remaining life (min) 3 3.33 4.632 4.8 4.2667 Total remaining life (min) 9 10 88 144 128 Calculation time (s) 19 20 32 36 36 Total tool life utilization 0.911 0.935 0.905 0.915 0.9645
This calculation uses the Pentium P155 computer, the memory is 16M, and it is programmed with Visual Basic 5.0. Since the total tool requirement usage time is greater than the total tool life, the tool requirements follow a predetermined sequence, and the remaining life of each tool in the example after calculation and dispatch can no longer complete the next requirement of the tool. That is, the tool has done its best at this time.