全自动称重式雨量计的研制及性能分析

展小云; 赵军; 税军峰; 赵向辉; 郭明航

doi:10.11975/j.issn.1002-6819.2021.19.014

全自动称重式雨量计的研制及性能分析

展小云^1,2,
赵军^1,2,
税军峰²,
赵向辉³,
郭明航^1,2

1.
西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室，杨凌 712100
2.
中国科学院水利部水土保持研究所，杨凌712100
3.
西安三智科技有限公司，西安 710075

基金项目: 中国科学院战略性先导科技专项（XDA20040202）；国家重点研发计划（2017YFA0604803）；黄土高原土壤侵蚀与旱地农业国家重点实验室重要方向创新项目（A314021403-C3）

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出版历程
- 收稿日期: 2021-06-12
- 修回日期: 2021-09-14
- 发布日期: 2021-09-30

Development and performance analysis of an automatic weighing rain gauge

1.
State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China
2.
Institute of Soil and Water Conservation, Chinese Academy of Sciences &Ministry of Water Resources, Yangling 712100, China
3.
Xi'an San Intelligent Technology Co., Ltd., Xi'an 710075, China

摘要

摘要: 为了精准刻画降雨过程特征，研制了一种具有野外复杂条件下普遍适用的全自动称重式雨量计，该仪器以STM32单片机为核心，利用A/D转换芯片对称重传感器的电压信号进行放大处理，获取分辨率为0.01 mm的分钟级别的降雨数据。试验结果表明，该雨量计测量标准差为0.02 mm/min，测量准确度最高为98.67%，说明该仪器监测精度高且适用范围广。称重式雨量计分辨率高，对微小雨滴反应灵敏，使得其监测结果较翻斗式雨量计大。此外，利用称重式雨量计在王东沟小流域进行野外自然降雨观测，发现该小流域自然降雨集中在5-9月，主要以次降雨量≤5 mm的降雨为主，而次降雨量为＞10~25 mm的降雨对降雨总量贡献最大。该仪器可以实时准确地监测降雨全过程，可为提高降雨监测技术的精准化和自动化水平提供参考。
- 降水 /
- 传感器 /
- 雨量计 /
- 自动化监测
Abstract: Precipitation has widely been recognized as a fundamental component of the global water cycle. Accurate measurement of precipitation is very necessary for the main input into hydrological models. Hydraulic structures are then required to adequately design for efficient management of water resources. Several types of automatic rain gauges have been used in recent years, such as ultrasonic and laser rain gauges, but tipping-bucket rain gauges are still the common choice. Particularly, the tipping-bucket rain gauge can provide a better temporal resolution for the rainfall intensity. However, questions still remain on the accuracy of graphical representation for the actual rainfall. In this study, a real-time and automatic monitoring instrument was developed for the weighing rain gauge with high precision for precipitation. Three parts were composed of collector, weighing, measurement, and control subsystem. These subsystems were applied to multi-scenario conditions and performed well under the complex field. As such, the instrument was able to realize sample collection and measurement, data transmission and calculation, remote control, and diagnosis synchronously, compared with the traditional. The A/D conversion chip was utilized in the STM32 single-chip microcomputer to amplify the voltage signal of the weighing sensor. Subsequently, two important parameters of rainfall and rainfall intensity were achieved at a minute level with a resolution of 0.01 mm. Finally, a peristaltic pump was selected to verify the calibration of the developed instrument. The target intensities of rainfall were set as 0.02, 0.08, 0.17, 0.25, 0.50, 0.67, 0.83, 1.67, and 3.33 mm/min. The samples with the rainfall intensity of 0.83 mm/min were measured 30 times, and the rest were run five times. The results showed that the average rainfall intensity was 0.85 mm/min, where the histograms of target rainfall intensity presented a normal distribution, indicating higher precision of developed instrument than before. The best fitting linear regression was also represented by a slope with the R2 value close to 1. Additionally, the average error of the designed instrument was -1.32%, while the highest accuracy was 98.67%, and the relative error of less than 5% accounted for more than 85% of the total samples. The measured data of the developed instrument was also much larger than that of the tipping-bucket rain gauge under simulated rainfall conditions. The high resolution and sensitivity to light rain were contributed to the increase of effective rainfall rate and total rainfall. Finally, the performance of the developed instrument was verified under field conditions in the Wangdonggou watershed for one consecutive year. It was found that the annual rainfall was 522.80 mm, particularly concentrated from May to September. Correspondingly, the single rainfall ≤5 mm was the predominant contributor in natural precipitation, accounting for 74.11% of the total number of rainfall events, whereas, the single rainfall of >10-25 mm was the most important to total rainfall. Consequently, the self-designed instrument can widely be expected to automatically monitor the large variation of rainfall in most complex fields.
- precipitation /
- sensors /
- rain gauge /
- automatic monitoring

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参考文献(34)

[1]	Michaelides S, Levizzani V, Anagnostou E, et al. Precipitation: Measurement, remote sensing, climatology and modeling[J]. Atmospheric Research, 2009, 94(4): 512-533.
[2]	Feng Y, Zhao X Y. Changes in spatiotemporal pattern of precipitation over China during 1980-2012[J]. Environmental Earth Sciences, 2015, 73: 1649-1662.
[3]	Lanza L G, Vuerich E. 2012. Non-parametric analysis of one-minute rain intensity measurements from the WMO field intercomparison[J]. Atmospheric Research, 2012, 103: 52-59.
[4]	Gray B, Toucher M. Rain gauge accuracy at a high-altitude meteorological station in Cathedral Peak[J]. Jounal of Hydrologic Engineering, 2019, 24(2): 04018064.
[5]	冯讷敏. 雨量仪器综述[J]. 水利水文自动化，1996(3)：1-6.
[6]	Molini A, La Barbera P, Lanza L G, et al. Rainfall intermittency and the sampling error of tipping-bucket rain gauges[J]. Physics and Chemistry of the Earth, Part C: Solar, Terrestrial and Planetary Science, 2001, 26(10/11/12): 737-742.
[7]	Tapiador F J, Turk F J, PetersenW, et al. Global precipitation measurement: methods, datasets and applications[J]. Atmospheric Research, 2012, 104/105(1): 70-97.
[8]	Mekkonnen G B, Matula S, Dolezal F, et al. Adjustment to rainfall measurement undercatch with a tipping-bucket rain gauge using ground-level manual gauges[J]. Meteorology and Atmospheric Physics, 2015, 127(3): 241-256.
[9]	Serra Y L, A'Hearn P, Freitag H P, et al. Atlas self-siphoning rain gauge error estimates[J]. Journal of Atmospheric and Oceanic Technology, 2001, 18(12): 1989-2002.
[10]	舒大兴，王志毅. JSP-1型虹吸校正翻斗雨量计研制与特点[J]. 水文，2009，29(6)：73-75.Shu Daxing, Wang Zhiyi. Development of JSP-1-type tipping-bucket rainfall recorder by siphon correction[J]. Journal of China Hydrology, 2009, 29(6): 73-75. (in Chinese with English abstract)
[11]	李弘洋，李青，李雄，等. 全自动远程虹吸式雨量计的研制[J]. 中国计量学院学报，2010，21(1)：34-37.Li Hongyang, Li Qing, Li Xiong, et al. The development of automatic remote siphon rain gauges[J]. Journal of China Univer sity of Metrology, 2010, 21(1): 34-37. (in Chinese with English abstract)
[12]	徐沾伟，郑贵林. 基于声学自校正原理的超声式雨量计[J]. 自动化与仪表，2012，27(3)：13-15，52.Xu Zhanwei, Zheng Guilin. Ultrasonic rain gauge based on acoustic self-calibration principle[J]. Automation and Instrumentation, 2012, 27(3): 13-15, 52. (in Chinese with English abstract)
[13]	Zheng G L, Xu Z W, Ding L. An innovative principle in self-calibration by dual ultrasonic sensor and application in rain gauge[J]. Sensor Letters, 2013, 11(3): 617-621.
[14]	Kruger A, Krajewski W F. Two-dimensional video disdrometer: A description[J]. Journal of Atmospheric and Oceanic Technology, 2002, 19(5): 602-617.
[15]	Ellis R A, Sandford A P, Jones, G E, et al. New laser technology to determine present weather arameters[J]. Measurement Science and Technology, 2006, 17(7): 1715-1722.
[16]	Carollo F G, Ferro V, Serio M A. Reliability of rainfall kinetic power-intensity relationships[J]. Hydrological Processes, 2017, 31: 1293-1300.
[17]	张艳红，刘兵武，刘理天，等. 一种新型硅基厚膜压力/温度传感器的设计和制作[J]. 传感技术学报，2006，19(6)：2376-2379.Zhang Yanhong, Liu Bingwu, Liu Litian, et al. Design and fabrication of a novel silicon pressure/temperature microsensor[J]. Chinese Journal of Sensors and Actuators, 2006, 19(6): 2376-2379. (in Chinese with English abstract)
[18]	蒋凯，叶树明，陈杭，等. 适用于极端环境的高精度压力传感器开发与标定[J]. 传感技术学报，2007，20(10)：2230-2233.Jiang Kai, Ye Shuming, Chen Hang, et al. Developing and calibrating of the high precision pressure sensor applied in extreme environment[J]. Chinese Journal of Sensors and Actuators, 2007, 20(10): 2230-2233. (in Chinese with English abstract)
[19]	漆随平，王东明，孙佳，等. 一种基于压力敏感元件的降雨传感器[J]. 传感技术学报，2012，25(6)：761-765.Qi Suiping, Wang Dongming, Sun Jia, et al. The development of a novel automatic rainfall gauge based on the sensitive pressure sensor[J]. Chinese Journal of Sensors and Actuators, 2012, 25(6): 761-765. (in Chinese with English abstract)
[20]	Overgaard S, EL-Shaarawi A H, Arnbjerg-Nielsen K. Calibration of tipping bucket rain gauges[J]. Water Science and Technology, 1998, 37(11): 139-145.
[21]	Vasvari V. Calibration of tipping bucket rain gauges in the Graz urban research area[J]. Atmospheric Research, 2005, 77(1/2/3/4): 18-28.
[22]	Habib E H, Meselhe E A, Aduvala A V. Effect of local errors of tipping-bucket rain gauges on rainfall-runoff simulations[J]. Jounal of Hydrological Engering, 2008, 13: 488-496.
[23]	孙贵萍，巨兰香. 自动传感雨量器与虹吸式雨量计对比分析[J]. 东北水利水电，2014，32(8)：36-37.
[24]	曹洁，高健，帅立国，等. 双桶双虹吸称重雨量计的测报系统设计[J]. 自动化仪表，2010，31(7)：72-74，78.Gao Jie, Gao Jian, Shuai Liguo, et al. Design of acquisiton and transmission system of double-barrel and double-siphon weighing pluviometer[J]. Process Automation Instrumentation, 2010, 31(7): 72-74, 78. (in Chinese with English abstract)
[25]	李耀宁，陶立新，黄湘. 不同雨量计测值误差分析[J]. 气象科技，2011，39(5)：670-672.Li Yaoning, Tao Lixin, Huang Xiang. Causal analsis of measurement difference between various rain gauges[J]. Meteorological Science and Technology, 2011, 39(5): 670-672. (in Chinese with English abstract)
[26]	梁朝阳，李清，刘浏，等. 翻斗式雨量计的误差分析[J]. 气象水文海洋仪器，2016，33(1)：68-71.Liang Chaoyang, Li Qing, Liu Liu, et al. Error analysis of tipping bucket rain gauge[J]. Meteorological, Hydrological and Marine Instruments, 2016, 33(1): 68-71. (in Chinese with English abstract)
[27]	洪峰. 基于气介式超声波传感器的雨量液位测量系统设计[J]. 现代电子技术，2010，33(23)：149-151，157.Hong Feng. Rainfall liquid level measuring system based on air-coupled ultrasonic sensor[J]. Modern Electronics Technique, 2010, 33(23): 149-151, 157. (in Chinese with English abstract)
[28]	朱亚晨. 基于STM32的超声雨量计研制[D]. 南京：南京信息工程大学，2016.Zhu Yachen. Development of Ultrasonic Rain Gauge Based on STM32[D]. Nanjing: Nanjing University of Information of Science & Techenology, 2016. (in Chinese with English abstract)
[29]	展小云，郭明航，赵军，等. 基于粒子成像瞬态测量技术的雨滴微物理特性及降雨动能研究[J]. 农业工程学报，2018，34(2)：107-113.Zhan Xiaoyun, Guo Minghang, Zhao Jun, et al. Microphysical features of raindrop and rainfall energy based on particle imaging transient measurement technology[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2018, 34(2): 107-113. (in Chinese with English abstract)
[30]	唐慧强，朱家聪. 基于无线传感网络的压力式雨量计[J]. 通信技术，2009，42(3)：247-248，251.Tang Huiqiang, Zhu Jiacong. Pressure pluviometer based on wireless sensor network[J]. Communications Technology, 2009, 42(3): 247-248, 251. (in Chinese with English abstract)
[31]	Zhan X Y, Zhao J, Feng Q, et al. Particle imaging auto-measurement system for microphysical characteristics of raindrops in natural rain[J]. Atmospheric Research, 2020, 242: 104963.
[32]	Milewska E J, Vincent L A, Hartwel M M, et al. Adjusting precipitation amounts from Geonor and Pluvio automated weighing gauges to preserve continuity of observations in Canada[J]. Cannadian Water Resources Journal,? 2019, 44(2):? 127-145.
[33]	Saha R, Testik F Y, Testik M C. Assessment of OTT Pluvio(2) rain intensity measurements[J]. Journal of Atmospheric and Oceanic Technology, 2021, 38(4): 897-908.
[34]	殷水清，王杨，谢云，等. 中国降雨过程时程分型特征[J]. 水科学进展，2014，25(5)：617-624.Yin Shuiqing, Wang Yang, Xie Yun, et al. Characteristics of intra-storm temporal pattern over China[J]. Advances in Water Science, 2014, 25(5): 617-624. (in Chinese with English abstract)