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基于CAN總線的旋翼無人機(jī)噴灑模擬系統(tǒng)
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浙江省科技重大專項(xiàng)(2015C02007)和國家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFD0700304)


Development of CAN-based Aerial Spraying Simulation System
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    設(shè)計(jì)了一套高精度、高可控性的無人機(jī)噴灑模擬平臺(tái),并進(jìn)行了試驗(yàn)驗(yàn)證。該系統(tǒng)機(jī)械部分采用直線導(dǎo)軌結(jié)合伺服電機(jī),最大承載質(zhì)量50kg,控制部分采用MFC設(shè)計(jì)上位機(jī)控制軟件,與主控板STM32通過串口進(jìn)行通訊,實(shí)現(xiàn)對(duì)水平和垂直2個(gè)方向上伺服電機(jī)的控制,同時(shí)采用CAN總線與噴灑控制器通訊和遠(yuǎn)程操控,可以實(shí)現(xiàn)噴灑流量控制以及旋翼風(fēng)速控制。為評(píng)價(jià)系統(tǒng)運(yùn)行精度,采用激光測距儀分別對(duì)系統(tǒng)在水平運(yùn)動(dòng)速度0.05、0.10、0.15、0.20m/s下和垂直運(yùn)動(dòng)速度0.01、0.02、0.03、0.04m/s下的控制距離進(jìn)行距離測量,結(jié)果顯示,垂直和水平方向上,控制參數(shù)與實(shí)際行程決定系數(shù)R2=1,水平與垂直重復(fù)精度優(yōu)于2mm,系統(tǒng)控制精度高;采用振動(dòng)測試儀對(duì)系統(tǒng)在0.05、0.10、0.15m/s運(yùn)行速度下進(jìn)行測試,通過分析振動(dòng)數(shù)據(jù),在不同運(yùn)動(dòng)速度下系統(tǒng)振動(dòng)均不超過20m/s2,其中X向和Y向在運(yùn)行中存在較為穩(wěn)定的4~5m/s2的加速度,系統(tǒng)運(yùn)行穩(wěn)定。本系統(tǒng)可以有效降低噴灑試驗(yàn)載具成本,降低試驗(yàn)風(fēng)險(xiǎn)。

    Abstract:

    Agricultural spraying unmanned aerial vehicles (UAV) become a new hot spot in intelligent agricultural machinery field. It has a lot advantages over traditional spraying method like manual spraying and machine spraying. There is an urge need of UAV spraying technology. Meanwhile, since UAV onboard spraying takes a lot of time to prepare and is highly risky because for now there was a lack of customized flight controller for agriculture spraying. The development of an UAV aerial spraying simulation system was described. This system was developed for aerial spraying theory and methods test so as to shorten experiment cycle and motivate new spraying methods to be optimized. The system was designed and developed as a high precision, highly automated unmanned aerial vehicle (UAV) simulation platform to perform UAV indoor test. The system mechanical precision was maximum 2mm error for horizontal, maximum error 1mm for vertical, maximum load weight 50kg. MFC-based upper machine software was designed and it was communicated with the main control board to realize the horizontal and vertical directions movement. CAN bus was used for communication between main control board and the far end spraying unit controller. The far end spraying controller controlled spray flow control and rotor speed. This system can effectively reduce the spraying test vehicle costs, reduce the risk, and promote the UAV spraying technology development and testing. The system can be expanded to the agricultural plant protection spray test area in many places.

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張艷超,陳楊,李藝健,劉飛,何勇.基于CAN總線的旋翼無人機(jī)噴灑模擬系統(tǒng)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2018,49(1):108-115. ZHANG Yanchao, CHEN Yang, LI Yijian, LIU Fei, HE Yong. Development of CAN-based Aerial Spraying Simulation System[J]. Transactions of the Chinese Society for Agricultural Machinery,2018,49(1):108-115.

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  • 收稿日期:2017-04-05
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  • 在線發(fā)布日期: 2018-01-10
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