农业机械学报2017，Vol.48Issue(4)：47-55,9.DOI:10.6041/j.issn.1000-1298.2017.04.006
液位监测技术在植保无人机中的应用分析
Application Analysis of Liquid-level Monitoring Technology to Plant Protection UAV
摘要
Abstract
The liquid-level data is one of the most important informations for flying operators of spaying UAV.During the operation,the liquid content in the pesticide tank is dynamic,the flying operators have always to pay attention to the liquid content so that they can make suitable decisions for the flight control according to the liquid content adjustment in the pesticide tank.Therefore,the liquid-level monitoring method for pesticide tank is important in the design of key components of spraying UAV.In order to explore the feasible method for liquid-level monitoring of pesticide tank in spraying UAV,several major methods about contact and non-contact liquid-level monitorings were reviewed,including differential pressure,floating electrode,capacitance,ultrasonic,laser,photoelectric,flowmeter,machine vision and radar.Spraying UAV has special requirements,such as liquid surface violent fluctuation,different physical and chemical properties of different pesticides,different shapes in different tanks and high anticorrosion requirements and small size of tank.Lots of limitations of the above mentioned methods when they were used in spraying UAV were pointed out.And then solutions called air-pressure wireless liquidlevel monitoring (APWLLM),a kind of non-contact liquid-level monitoring method,which was suitable for use in spraying UAV,were proposed.It would provide a reference for the further development of liquid-level monitoring device for pesticide tank in spraying UAV.关键词
航空植保/植保无人机/药箱/液位监测/无线监测Key words
aviation plant protection/plant protection UAV/pesticide tank/liquid-level monitoring/wireless monitoring分类
农业科技引用本文复制引用
周志艳,姜锐,罗锡文,兰玉彬,宋灿灿,李克亮..液位监测技术在植保无人机中的应用分析[J].农业机械学报,2017,48(4):47-55,9.基金项目
广东省科技计划项目(2014A020208103、2014B090904073、2015B020206003)和国家重点研发计划项目(2016YFD0200700) （2014A020208103、2014B090904073、2015B020206003）
