控制论的研究对象是系统，它对于进一步考察系统内部的组织、控制和调节的功能是不可缺少的。信息是组织系统的一个重要特征，它使系统得以实现自我调节，是系统之间，系统与环境之间联系的主要方式。系统、信息、控制不可分离. 我们知道，一般系统有三大要素：物质、能量和信息。对控制系统而言，信息是重要的，信息与控制是不可分的，系统中任何信息的传递、交换和处理都是为了系统的控制，而控制正是控制论系统的主要目的。所以，从某种意义上说，控制系统一定是一个信息系统。 实际上，控制论中的系统常常是一个很复杂的系统，施控系统和受控系统都有许多子系统组成，而且常常不能明显地区分。例如一个企业可看作一个复杂的控制系统，厂长施控于各部门负责人，而各负责人又施控于其下属，┅，直到每个工人施控于各机床设备，以及各具体的车刀、主轴、马达、油泵等等。 所以，控制论思想不但可以广泛应用于军事、航天航空、化工生产等装备和生产线的控制，也可对人文、社会等方面的管理控制带来积极的指导作用。
The research object of cybernetics is system, which is indispensable to further study the organization, control and regulation functions within the system. Information is an important feature of an organizational system. It enables the system to achieve self-regulation and is the main way to connect systems and the environment. System, information and control cannot be separated We know that the general system has three elements: matter, energy and information. For the control system, information is the most important, and information and control are inseparable. The transmission, exchange and processing of any information in the system are for the control of the system, and control is the main purpose of the cybernetic system. Therefore, in a sense, the control system must be an information system. In fact, the system in cybernetics is often a very complex system. The control system and the controlled system are composed of many subsystems, and they are often not clearly distinguished. For example, an enterprise can be regarded as a complex control system. The factory director controls the heads of various departments, and the heads of various departments control their subordinates until each worker controls the machine tools and equipment, as well as the specific turning tools, spindles, motors, oil pumps, etc. Therefore, cybernetics can not only be widely used in the control of military, aerospace, chemical production and other equipment and production lines, but also play a positive guiding role in the management and control of humanities, society and other aspects.
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