The design starts from the analysis of the water-level alarm principle and design methods of the towers,mainly based on SCM language,achieve a level to implement automatic control, with automatic protection,automatic voice-alarm function control system.The control system consists of A / D conversion, single-chip microcomputer control, digital display, motor-driven, motor control components.Meanwhile exposits various parts of the details gives the main flow chart and software design procedures.
KEY WORDS: Single chip microcomputer ;Voluntarily control the Lever level ; Relay ;Auto-protecting