CAJ | 학술논문

为解决现有针式穴盘播种机的吸嘴易发生堵塞影响播种质量的问题，基于 DSP 嵌入式图像识别系统，结合装置气吸－气吹的播种原理，设计了一种新的机械式自清洁播种头。该装置主要由 DSP 嵌入式图像识别和自动化清洁控制系统组成，图像处理模块采用TMS320 DM642内核，包括图像预处理、特征提取、特征编码和编码匹配过程。机械部分包括吸嘴头、固定部、清洁活塞、顶针和复位弹簧等，通过和阻塞种子的图像匹配，输出接通正气压动作，利用活塞和顶针对吸嘴头进行疏通和排种作业。为了验证装置的有效性和可靠性，对系统进行了测试。结果表明：在播种速度为30排／min时，自清洁播种头播种的单粒率为98．7％、空穴率为0．52％、重播率为1．21％，与传统针式吸嘴相比，播种质量和防堵效果大幅度提高。
위해결현유침식혈반파충궤적흡취역발생도새영향파충질량적문제，기우 DSP 감입식도상식별계통，결합장치기흡－기취적파충원리，설계료일충신적궤계식자청길파충두。해장치주요유 DSP 감입식도상식별화자동화청길공제계통조성，도상처리모괴채용TMS320 DM642내핵，포괄도상예처리、특정제취、특정편마화편마필배과정。궤계부분포괄흡취두、고정부、청길활새、정침화복위탄황등，통과화조새충자적도상필배，수출접통정기압동작，이용활새화정침대흡취두진행소통화배충작업。위료험증장치적유효성화가고성，대계통진행료측시。결과표명：재파충속도위30배／min시，자청길파충두파충적단립솔위98．7％、공혈솔위0．52％、중파솔위1．21％，여전통침식흡취상비，파충질량화방도효과대폭도제고。
In order to solve the existing suction nozzle needle type tray seeder easy blocking effects of sowing quality problems, DSP embedded image recognition system based on combining device, gas desorption gas blowing seeding prin-ciple, design a new mechanical self-cleaning seeding head.The device is mainly composed of a DSP embedded image recognition and automatic cleaning of the composition of the control system, the image processing module based on TMS320DM642 kernel, the function includes image preprocessing, feature extraction, feature coding and code matching process,the mechanical part comprises a nozzle,a fixed part,the cleaning piston,thimble and a reset spring,and image blocking by seed matching, output is connected with a positive air pressure action, dredge and seeding operations on the suction nozzle head using piston and the thimble.In order to verify the validity and reliability of the device, the system is tested, the results showed that, in the seeding speed for the 30 row /min, self cleaning head single grain sowing sowing rate was 98 .7%, the hole rate is 0 .52%, the playback rate is 1 .21%, the indexes and the traditional needle type noz-zle compared to sowing quality and greatly improve the anti blocking effect.