在现代工业生产设备中,有大量的数字A。
在现代化的工业生产设备中,有大量的数字量及模拟量的控制装置,例如电机的起停,电磁阀的开闭,产品的计数,
温度、压力、流量的设定与控制等,工业现场中的这些自动控制问题,若采用可编程序控制器( P C ) 来解决自动控制问题已成为
最有效的工具之一,本文叙述P C 控制系统设计时应该注意的问题。-In modern industrial production equipment, there are a large number of digital and analog control devices, such as motor starting stop, solenoid valve opening and closing, product count, temperature, pressure, flow and control settings such as, industrial site automatic control of these problems, the use of programmable logic controller (PC) to solve the automatic control issue has become one of the most effective tool, this article describes the design of PC control system should pay attention to.
- 2022-06-13 01:49:53下载
- 积分:1
图论中最小生成树Kruskal算法 及画图程序 M
图论中最小生成树Kruskal算法 及画图程序 M-函数
格式 [Wt,Pp]=mintreek(n,W):n为图顶点数,W为图的带权邻接矩阵,不构成边的两顶点之间的权用inf表示。显示最小生成树的边及顶点, Wt为最小生成树的权,Pp(:,1:2)为最小生成树边的两顶点,Pp(:,3)为最小生成树的边权,Pp(:,4)为最小生成树边的序号 附图,红色连线为最小生成树的图
例如
n=6 w=inf*ones(6)
w(1,[2,3,4])=[6,1,5] w(2,[3,5])=[5,3]
w(3,[4,5,6])=[5,6,4] w(4,6)=2 w(5,6)=6
[a,b]=mintreek(n,w)
-Graph theory Kruskal minimum spanning tree algorithm and Paint program M-function format [Wt, Pp] = mintreek (n, W): n for the map Vertices, W for weighted graph adjacency matrix, does not constitute the edge of the two vertices of between the right to express with inf. Show the minimum spanning tree of edges and vertices, Wt right for the Minimum Spanning Tree, Pp (:, 1:2) for the minimum spanning tree edges of the two vertices, Pp (:, 3) for the minimum spanning tree of the right side, Pp ( :, 4) For the minimum spanning tree graph edge serial number, red connection for the minimum spanning tree of graph such as n = 6 w = inf* ones (6) w (1, [2,3,4]) = [ 6,1,5]
- 2022-01-30 21:32:39下载
- 积分:1