In order to promote the informatization construction of small-and medium-sized enterprises,it is necessary to study the design method of the informatization integral control system. Since the current methods adopting principal and subordi-nate structure with one host computer and three slave computers have the problems of long system response time and poor net-work load balance degree,a design method based on load balancing is proposed for the integral control system of small-and me-dium-sized enterprise informatization. Taking the C8051F040 single-chip microcomputer(SCM)as the kernel,the overall sys-tem framework was designed. The controlled object is connected with SCM acquisition card through sensor device,voltage ratio conversion chip and A/D conversion chip. The control system software can link the programs from the SCM side to PC side,and perform the network resource allocation. The PID controller is used to realize the overall control. The experimental results show that the proposed method can realize the overall real-time control for the small-and medium-sized enterprise informatization,and has great significance to promote the reasonable allocation of small-and medium-sized enterprise resources.%为了促进当前中小型企业的信息化建设,需要对信息化的整体控制系统设计方法进行研究.目前方法采用1个主机与3个从机的总线型主从式结构,但存在系统响应时间较长,网络负载均衡度较差的问题.为此提出一种基于负载均衡的中小型企业信息化整体控制系统设计方法,首先以C8051F040单片机为核心,设计总体系统框架;然后将被控制对象经过传感器设备、电压比例变换、A/D转换芯片和单片机采集卡连接,控制系统软件部分将单片机端程序和PC机端程序相连,并进行网络资源分配;最后利用PID控制器实现整体控制.实验结果证明,所提方法能够实现中小型企业信息化的整体实时控制,对促进中小型企业资源的合理分配具有重要意义.
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