1、 1 水位遥测自控系统 摘 要 本系统以 AT89S51 单片机为主控单元，通过 超声波 传感器 和 液位变送器实现液位实时数据 的检测和 自动 控制。 系统分主控站与测控站，通过主控站的键盘可以实现对测控站的水位上下限的控制和显示。主控站与测控站之间的无线实时数据传输的解决方案采用广泛应用于无线抄表、工业数据采集系统和水文气象监控等领域的无线通信芯片 nRF24L01 组成无线高速数据收发模块 。系统实现对所监控水位的短矩离无线测量与自动控制，利用 GFSK实现数据高速传送以及较低的功耗。从测控站传送过来的数据通过人性化人机交换界 面LCD1602 实现数据的实时数据显示 以及实现相应的报警
2、提示 。本系统通过单片机串口与电脑串口的通讯功能和利用互联网可以实现水位的远程测量与自动控制，这对江河水位的实时监控非常实用。 本系统可能通过简单地调整就可以移植到其它物位系统与无线抄表系统，非常有研究价值。 系统利用功能强大的 C 语言开发，并在软硬件设计中分别使用了 Protel 99se 、keilC51 开发平台。结果表明，该 系统 具有有性价比高、操作简便、可视化操作等优点 . 关键字： AT89S51 单片机 , nRF24L01, 超声波传感器 ,GFSK 2 THE WATER LEVEL AUTO-CONTROLLED SYSTEM Abstract: The system
3、for the main control unit AT89S51 SCM through ultrasonic sensors and liquid level transmitter to achieve real-time data level of detection and control. Sub-stations and control system monitoring and control station, the main control station through the keyboard can be achieved on the monitoring and
4、control station on the lower level of control and display. The main control station and the monitoring and control station between the real-time wireless data transmission solutions used widely used in wireless meter reading, industrial data acquisition system and hydro-meteorological monitoring in
5、areas such as wireless communications chips nRF24L01 of wireless high-speed data transceiver modules. System to monitor the water level by the short moments from the wireless measurement and automatic control, using GFSK achieve high-speed data transmission and lower power consumption. From monitori
6、ng and control station over the transmission of data through the human LCD1602 human-computer interface for data exchange of real-time data and the realization of the corresponding report tips. The system through the serial port and the SCM computer serial communication functions and the use of the
7、Internet can achieve the long-range water level measurement and automatic control, this realtime monitoring of the river water level is very practical. This system may be a simple adjustment can be transplanted to other system of digital and wireless meter reading system, very valuable. Systems using the powerful C-language development and design of hardware and software were used Protel 99se, keilC51 development platform. The results show that the system is a cost-effective, simple, visual operational advantages. Key word: AT89S51 SCM, nRF24L01, ultrasonic sensors, GFSK
