The general intelligent controller for building automation system (BAS) is composed of AT89S52 and RS232 interfaces, modulusconversion chip, dynatron and NE4100 gateway etc.
The system is mainly composed of hardware circuit module such as 89c51 single-chip computer, modulusconversion, driving display, positional switch inputting, controlling key etc.
The effects of the polymerization degree and conversion rate of the feedstocks on the high-strength high-modulus poly- vinyl alcohol fiber were studied.