农业现代化研究2016，Vol.37Issue(5)：1008-1014,7.DOI:10.13872/j.1000-0275.2016.0059
一种马铃薯漏播检测及补偿装置的研制
Development of a kind of potato loss sowing detection and compensation device
摘要
Abstract
For the problems of loss sowing in the operation of the potato planter with the chain-scoop metering device, based on microchip unit PIC16F877, a new scheme which is composed of loss sowing detection start signal generation circuit, infrared loss sowing detection circuit and socket-roller seed metering system is put forward. Loss sowing detection start signal generation circuit mainly consisted of the permanent magnets and a reed relay circuit, when every permanent magnet which is ifxed to the plate of the seed spoon skips over the reed relay, the loss sowing detection will be trigged basing on the infrared signal emission and receiving, the system can make the judgment whether loss sowing occurs based on the number of level changes in particular pins of PIC16F877 during a certain period; in the case of loss sowing, a reseeding directive from PIC16F877 will be issued immediately, the socket-roller seed metering device will rotate 90° rapidly driven by the step motor, as a result, a potato seed will be released into the slipping groove, and the loss sowing compensation is realized. The experimental results show that the system performance is reliable, the accuracy of loss sowing detection is not less than 99.8%, the success of loss sowing compensation is greater than 75% and the total seeding success is above 96.5%, loss sowing of the potato planter with the chain-scoop metering device is suppressed signiifcantly.关键词
马铃薯播种机/链勺式排种器/干簧继电器/红外漏播检测/窝眼轮式排种系统Key words
the potato planter/chain-scoop metering device/reed relay/infrared loss sowing detection/socket-roller seed metering system分类
农业科技引用本文复制引用
王关平,孙伟..一种马铃薯漏播检测及补偿装置的研制[J].农业现代化研究,2016,37(5):1008-1014,7.基金项目
甘肃省高等学校基本科研业务费资助项目（2013）；盛彤笙科技创新基金（GSAU-STS-1337）。@@@@the Fundamental Research Funds for the Colleges and Universities of Gansu Province (2013) （2013）
Sheng-Tong-Sheng Science and Technology Innovation Fund (GSAU-STS-1337) （GSAU-STS-1337）
