基于多传感器数据的设施番茄地上、地下环境三维曲面模型分析

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关键词：地上、地下环境模型;三维曲面拟合;多传感器采集;日平均温度;日电导率最大差值中图分类号：S126；S-3;S151.9 文献标识码：A DOI编码：10.3969/j.issn.1006—6500.2025.07.005

Abstract：Inordertostudythechangetrendof theabove-groundandbelow-groundenvironmentalfactors inthegreenhouse，taking thefacilitytomatoasanexample，multiplesnsorswereinstalldoutsideofgenhouse，intefertliersolutionandinaboveground andbelow-groundlocationinsidethegreenhousetocomprehensivelycolectenvironmentaldata.Itwasfocusedonthetrendsofthe dailyaveragetemperatureindiferentwidths（2，46，8，1Ometes）frotebackwallwiththehangeofthedailaveragetpature outsidetegrenhouseandtedailymaximumdiferencevalueofsoilelectricconductivityindferentdepths（5，15，5545m） withthechangeoffertilizersolutionECvalue.InMATLAB，three dimensional curved surfacefittingwasused toestablish the daily averagetemperaturemodelabovethegroundandthedailymaximumdiferenceelectricconductivityvaluemodelbelowtheground. Meanwhile，twocorespondingquantitativefomulaswereobtained.Theresultsereobtainedthroughthemodelsthatthedailyaveragetemperaturewasthehighestwithin9metersandlowestwithin3meters，thdailymaximumdiferenceelectricconductivityvalue wasthemaximumin1Ocmandtheminimumin40cm.Finaly，comparedwiththemeasuredvalue，itwasshowedthat，themean absolute errors of predicted value obtained from the above-ground and below-ground models are 1.61 C and 10.68μs⋅cm-1 respectively， and the root mean square errors were 2.09 C and 14.71μs⋅cm-1 respectively.In conclusion，the models not only have a good fit，but also can provide theoretical support for the research about environmental changes in facility tomato.

KeyWords：abovegroundandbelowgroundenvironmentmodels;three-dimensionalcurvedsufacefiting;multi-sensoracquisition daily average temperature; daily maximum difference value of the soil electric conductivity

设施温室作为一种高效的现代农业生产方式，通过利用现代化农业工程技术保障作物生长所需温度、湿度等环境条件，达到增加作物产量、改善作物品质、延长生产季节的目的。（剩余10608字）