【Abstract】
Based on the MCU to complete automation, the better to achieve the gas detection automatic control. Use of high-performance low-cost MCU design and testing of oxygen concentration of oxygen concentration control system, which fully utilize the knowledge of the various microcontroller and design methods, making the system more stable and reliable, so that oxygen concentration can be detected and The concentration of oxygen control system more clear and complete control according to the actual application process to be expanded and more widely used.
The concentration of oxygen detection system by system control of the oxygen detection of the analog-to-digital conversion of part of alarm circuits, oxygen in control devices, devices absorb harmful gases, oxygen absorption device, and show some light circuit. System-wide to the main analog circuit, with digital control, system-wide through AT89S51 (SCM) precision control, oxygen concentration detected by the control unit and auxiliary circuit is tight and calculation of the output figures show that the concentration of restrictions set alarm Value, the control system through the AT89S51 alarm, produce oxygen or oxygen absorption system so that the normal concentration of oxygen by controlling the closure of the corresponding part of circuit, complete automation control, through the demonstration of the system to better detect and oxygen can be completed in a changing environment The use of debugging and measurement through the completion of the requirements of the subject has very good function.
【Keyword】 oxygen detection system control AT89S51 (SCM)
