serial equipment
2.Secondly, it analyzes deeply TCP/IP Protocol Stack Nut/Net in Nut/OS operating system, simplizes and compresses reasonably the protocol stack and constructs three function modules, which include the setting parameter module of Web Server, the RS232 communication module and the switch and simulation quantities monitoring module of serial interface equipment, to support Web Server with Socket mechanism on the basis of applied-layer HTTP protocol and CGI technology.
3.The equipment is mainly consisted of a single-chip computer 80c196KB, a little LCD displayer, a real-time clock chip, and a serial EEPROM. Such equipment owns the advantages of convient for observing and operating, It not only has the function of the measurement of exhaust gas, but also can record the surpass exhaust gas.

