Papers by Author: Kai Chun Ren

Abstract: Complex control system bears a heavy task, different field equipment have different requirements in reaction time, transmission speed, real time of fieldbus. Considering the characteristics of industrial Ethernet and fieldbus, mixed fieldbus was combined with Ethernet network; CAN - Ethernet gateway of CAN fieldbus was designed as example which can achieve the interconnection between upper and lower of the control system; the enterprise information network and control network got unified. Further, the system could integrate with internet to make it more practical.

Abstract: This paper analyses the characteristics and the glowing use value of LED lights, using STC series microcontroller design a system of LED which can automatically adjust the light according to the environment changes. The control system consists by the data acquisition module and control module and circuit driver module. This paper gives the control circuit hardware and software design. This system has many advantages such as energy conservation and environmental protection and longevity when compared with the conventional lighting system.

Abstract: This paper analyzes the characteristics of solar cells, and establishes the simulation model from its mathematical expressions which can factually reflects the change of solar cells’ parameters. The commonly used method of maximum power point tracking technologies is introduced. A PV system’s most maximum power is simulated by using the fuzzy control method. Simulation results show that the system can work at a stable maximum power point rapidly.