Air pressure, air temperatures-humidity are important marine meteorological observation contents. An application instance in remote islands meteorological monitoring system based on use of the new pressure sensor MS5534C and the temperatures-humidity sensor SHT15 is introduced. Article describes the haxic characteristics of these two sensors and inlerface technique with the microcontroller C8051F120, gives the software control methods. Article introduces the RS-485 bus interface circuit design, software design in detail and the approach to system integration. System test shows that the maximum pressure error is -0. 29hPa. the maximum temperature error is -0. 19 ℃ . the maximum humidity error is 3%, better than the project's design specifications. Practice has proved that the measuring system has the characteristic of high precision, low power consumption, easy maintenance, high reliability.%气压、空气温湿度是海洋气象的重要观测内容;介绍了采用新型压力传感器MS5534C和温湿度传感器SHT15构成的集成测量系统在边远海岛气象监测中的一个应用实例,描述了这两个传感器的基本特性及其与微控制器C8051F120的硬件接口设计和软件控制方法；给出了RS-485总线接口电路设计、软件设计及其集成方法；系统经检定表明,气压的最大误差是-0.29hPa,温度的最大误差是-0.19℃,湿度的最大误差是-3％,优于项目的设计指标；实际应用证明,该系统具有精度高、功耗低、维护方便和可靠性高的特点.
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