模块化多通道通用气象数据采集系统设计  

The design of modular multi-channel general meteorological data acquisition system

作　　者：张一波[1,2] 行鸿彦[1,2] 徐伟[1,2] 

机构地区：[1]南京信息工程大学气象灾害预报预警与评估协同创新中心,江苏南京210044 [2]南京信息工程大学江苏省气象传感网技术工程中心,江苏南京210044

出　　处：《中国测试》2016年第8期68-72,共5页China Measurement & Test

基　　金：国家自然科学基金项目(61671248);江苏省产学研联合创新资金计划项目(BY2013007-02);江苏省高校自然科学研究重大项目(15KJA460008)

摘　　要：针对传统型气象数据采集系统存在扩展性和通用性较差的问题,根据不同气象传感器输出电信号的特征,提出模块化结构的多通道通用气象数据采集系统。系统采用低功耗单片机和CPLD架构,通过多路模拟开关,数字端口,内置增益可控信号放大电路和控制器,分别对气象传感器输出的模拟和数字信号进行采集和处理;可根据需求配置多路采集通道,采集数据可通过串口传送给上位机。利用高精度JJQ1气象信号模拟器和61/2位万用电表搭建实验平台对系统进行测试。数据表明,系统具有测量准确度高、通道可配置、扩展性强的特点,还可用于其他领域的多通道信号采集。In order to improve the poor expansibility and versatility in the traditional meteorological data acquisition system, a modular multi-channel general meteorological data acquisition system based on the characteristics of different meteorological sensors was designed. The system which used the ultralow-power MCU and CPLD could collect and process the analog and digital signals of meteorological sensors through multiplexer, digital port, built -in gain -controlled signal amplification circuit and controller. Furthermore, according to the actual requirements, the system could configure the multi-channel of data acquisition as well as send the data to the host computer via a serial port. In addition, the JJQ1 signal simulator and 61/2-bit multimeter were used to test the system. The results show that the system has the advantages of high measure precision, configurable channels and good expansibility. Meanwhile, it can be also applied to other areas of multi-channel signal acquisition.

关 键 词：数据采集 模块化 多通道 气象传感器 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]