振動對紅豆播種裝置計數模組之影響

Effect of Vibration on a Counting Module for Adzuki Beans Sowing Devices

馬顗安(Yi-An Ma)

指導教授 ： 葉仲基

國立臺灣大學/生物資源暨農學院/生物產業機電工程學研究所/碩士(2015年)

https://doi.org/10.6342/NTU.2015.10326

摘要

紅豆為台灣南部的重要經濟作物，主要產地於高屏地區，種植時期為秋冬之際。在夏季稻作收割之後，到明年春季新作物播種之前的這段時間，進行紅豆種植，時間約在十月至隔年一月，生產後主要供應國內市場，少部份出口外銷。
近年來由於國際貿易興盛與農產品市場的開放，造成國外大量的低價紅豆進入台灣市場，由於台灣紅豆本身價格較高且產量不穩，使得台灣紅豆面臨競爭的問題。因此，降低紅豆的生產成本與增加種植效率為重要的課題。
本研究以自行研發之紅豆播種裝置監測系統，加裝在國內某農機廠商研製之機械式星輪團播機構上，而後進行播種監測系統的測試。播種機構與播種監測裝置在一起放置於電磁式振動平台上，然後開啟電磁式振動平台，使播種裝置與監測系統處於受振的環境下，進行振動方式、工作速度、振動頻率、及振幅等不同條件的實驗，並記錄監測系統上顯示的播種數量。
把記錄的播種數量換算成播種準確度，並計算每個實驗條件下準確度之平均值與標準差，然後使用統計學上的t檢定的方法，對靜置狀態與受振狀態的組別做比較，看受振狀態下的播種監測系統，準確度是否會有差異。另一個為比較不同振動條件下，利用統計學的ANOVA方法，探討播種準確度是否會有差異。如果所有組別都沒顯著差異，則可以判定該播種監測系統可用在真實田間的播種裝置上，進行播種輔助的工作，以提高紅豆播種效率，降低生產成本，並可進一步推廣使用。

關鍵字

紅豆 ； 播種裝置監測系統 ； 光感測器 ； 振動分析

並列摘要

Red bean is an important economic crop in the south of Taiwan, primarily in the areas of Kaohsiung and Pingtung. The period during which red bean is planted is during the fall to winter of each year, after the rice has been harvested in summer and before a new crop is seeded in spring. This allows planting from October to January of the next year. Red bean mainly supplies the Taiwanese market, but a part is exported to other countries.
Since international trade is increasing and the market for farm produce has opened to the world in recent years, large quantities of low priced red bean has been imported into Taiwan. Because Taiwanese product is expensive and the output is unstable, competition has increased, so it is important to reduce the cost of production and increase the efficiency of the crop.
In this study, a self-developed monitoring system is installed on the sowing device, which is produced by a domestic agricultural machinery manufacturer, to test the monitoring system. The sowing device and the self-developed monitoring system are mounted together on the vibration generator and the vibration simulator is initiated. The sowing device and monitoring system stay in an environment of vibration. For different experimental settings for the mode of vibration, the speed of sowing, the frequency and amplitude of vibration, the experiment records the number of speeds sowed on a display.
The number of seeds sowed is converted to a sowing accuracy, an average value and a standard error of deviation is calculated for the experiment. The results for a stationary state and vibration are compared using a t-test. The accuracy is measured in term of the difference in the monitoring system between the stationary and vibrating states.
In another experiment, the accuracy is measured by comparing the results for different vibration conditions, using an ANOVA. If there is no difference for different vibration conditions, the self-developed monitoring system can be used on farms for sowing. Using the self-developed monitoring system, the farmer can increase the efficiency of sowing and reduce the production costs.

並列關鍵字

red bean ； monitoring system ； optical sensor ； vibration analysis

參考文獻

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