关键词: 超声测距, 水位升降, 闸站防鸟, 卷帘门, 自动化控制

Abstract: The automation design of water level lifting anti-bird roller shutter door is one of the measures to improve automation level of gate station, to guard against the threat of birds and to ensure safe water delivery. The working principle is as follows: water level information is gathered by ultrasonic measurement and processed by microprogrammed control unit. Accordingly, the motor is driven to work. The design is highly automatic and is of good effect. This innovation has not only reduced manual operation, but also lowered safety risk, worthy of popularization for birds prevention.

Key words: ultrasonic distance measurement, water level fluctuation, gate station bird prevention, rolling shutter door, automatic control