Huangji functions as the coordinator to the whole of Yuanji, that is , as the central controller and coordinator of the operation of the Three-yuan on the same stratum , demonstrating an affinity to modern sciences ,such as the idea of the cultural centre in sociology, the concept of economic growth stages in economics ,and the thought of the growing point in botany.

A novel architecture of power grid control center

Several network connection-based visualization methods including the surface, bars, pipes and animated arrows are designed to express point and line data in power system control centers.

Aiming at the current construction situation of the integrated data platform (IDP) in electric power control center (EPCC), a practical and feasible construction pattern is proposed.

The paper expounds a technological demand for the hydraulic excavator's center control valve manufacturing modular machine tool in a hydraulic excavator plant,introduces the application of PLC in the center control system of the machine tool,and the outer circuit diagram and ladder diagram are given.

From fields of education and research,management work,central control room,discussion and communication and other aspects planning and design ideas are elaborated for intelligent campus.

The necessity about the CCR (central control room),which unify management and control,is expounded.