微處理機應用于動力噴霧機噴霧量控制系統之研究

Development of Microcomputer Controlled System for Application Rate of Sprayer

林世賢(Shyh-Shyan Lin) ； 王康男(Kang-Nang Wang)

《農業機械學刊》 3卷3期 (1994/09) Pp. 49-64

https://doi.org/10.30062/JAM.199409.0005

摘要

本研究之目的在研製動力噴霧機噴霧量之微處理機控制系統，使噴霧藥量能依噴霧車行走速度而自動調節，以完成單位面積定量之噴霧。相關研究內容包括：噴霧管路系統設計、轉速感測系統設計、噴霧量控制系統設計等項目，所獲得之研究結果如下：(1)本研究所設計的轉速感測系統，具有正確感測轉速的功能，(2)控制軟體程式採用預設值和數學式混合，可以避免控制訊號值產生誤差，有效的控制控制閥開度，(3)應用回流端控制閥開度變化，可以有效的控制噴量，(4)未經噴量控制的噴霧狀況下其噴霧量損失率高達46.9％，而經本研究所控制之噴霧系統，可以將平均噴霧不足或過量控制在10％以下。

關鍵字

微處理機 ； 噴霧管路 ； 噴霧

並列摘要

The performance of spraying pesticide is important for plant growth. Over spraying may damage the crop, pollute the environment, jeopardize the public health and rise the cost. To prevent these situations occurring, a proper pesticide spraying control system is needed.
The objective of this research was to set up a microprocessor system which is automatically adjusted by the ground speed of sprayer for controlling the spraying quantities. This system contains pipe-line design, sensing rotation speed, and quant control.
From the above research, conclusions are that the ground speed of the sprayer is successfully controlled by the step motor, that the output error of control signal is avoided due to the control program written by a prophetic signal value and a signal linear formula, and that the control value adjusts the spray quantity successfully. Therefore, the application loss of pesticide with a traditional system is 46.9%, but its spray accuracy is within 10% with the developed conrol system.

並列關鍵字

Microprocessor ； Spray-pipe-line ； Sprayer