数字式多要素集成气象测量模块开发  

Development of Digital Multifactor Integrated Meteorological Measurement Module

作　　者：吕雪芹 黄宏智 何艳丽 LYU Xueqin;HUANG Hongzhi;HE Yanli(Guangdong Meteorological Observation and Data Center,Guangzhou 510080,China)

机构地区：[1]广东省气象探测数据中心,广州510080

出　　处：《计算机测量与控制》2023年第2期69-75,共7页Computer Measurement &Control

基　　金：广东省重点领域研发计划(对接国家重大科技专项)项目(2020B1111200001);广东省重点领域研发计划项目(2020B0101130021)。

摘　　要：为了满足气象观测仪器设备微型化和数字化的需要,利用BME280作为气象要素核心传感元件,以及国产单片机STC15W408AS和外围电路,通过硬件的电源、PCB和软件数据质控的优化设计,成功开发具有抗干扰和质控性能的数字式、微型化、多要素集成气象测量模块,在笔状大小结构的体积上实现温度、湿度和气压三个要素的精准测量,形成微型数字化的智能气象传感器;在为期4个月的外场试验过程中,按照气象部门气象观测设备外场考核试验规定的要求和质量评估方法,将外场的被测模块与标准器获取的观测数据的数据获取率、相关性、平均误差、绝对离差、标准差等考核指标进行综合对比分析;评估的结果表明,温度的标准差为0.029,湿度标准差为0.047,气压标准差为0.000479,测量模块的主要性能指标达到了设计要求,长期工作稳定可靠;模块同时具有RS232和USB双串口输出,很容易连接自动气象站,也非常方便在物联网大面积气象监测应用场景中作为众多节点组网使用。In order to meet the needs of miniaturization and digitization in meteorological observation instruments and equipment,based on core sensor BME280 with meteorological elements,domestic single chip computer STC15W408AS,peripheral circuits and power are realized.Through the optimization hardware design,a digital,miniaturized,multi-element integrated meteorological measurement module with the performances of anti-interference and quality control is successfully developed,which achieves the accurate measurements of temperature,humidity and pressure in a structure with pen size,a micro digital intelligent meteorological sensor is formed.During four months field test,the data acquisition rate,correlation,average error,absolute deviation,standard deviation and other assessment indicators of the observed data obtained by the measured module in the field and the standard data are comprehensively compared and analyzed according to the requirements and quality assessment methods.The evaluation results show that the standard deviation of temperature is 0.029℃,the standard deviation of humidity is 0.047%RH,and the standard deviation of air pressure is 0.000479 Pa.The main performance indicators of the measurement module meet the design requirements,and the results of measurement module are stable and reliable for the long-term operation.The module has the functions of RS232 and USB dual serial port output at the same time,which is easily connected to the automatic weather station,and it is also very convenient for networking with many nodes in the large-scale meteorological monitoring application scenarios of the Internet of Things.

关 键 词：气象多要素 温湿压集成 测量模块 微型化结构 产品开发 

分 类 号：TH765[机械工程—仪器科学与技术]