丁友强,刘彦伟,杨丽,张东兴,崔涛,钟翔君.基于Android和CAN总线的玉米播种机监控系统研究[J].农业机械学报,2019,50(12):33-41,62.
DING Youqiang,LIU Yanwei,YANG Li,ZHANG Dongxing,CUI Tao,ZHONG Xiangjun.Monitoring System of Maize Precision Planter Based on Android and CAN Bus[J].Transactions of the Chinese Society for Agricultural Machinery,2019,50(12):33-41,62.
摘要点击次数: 1780
全文下载次数: 919
基于Android和CAN总线的玉米播种机监控系统研究   [下载全文]
Monitoring System of Maize Precision Planter Based on Android and CAN Bus   [Download Pdf][in English]
投稿时间:2019-05-21  
DOI:10.6041/j.issn.1000-1298.2019.12.004
中文关键词:  玉米  精量播种机  作业监控  Android  GPS  CAN总线
基金项目:国家重点研发计划项目(2017YFD0700703)、国家自然科学基金项目(51575515)和国家玉米产业技术体系建设项目(CARS-02)
作者单位
丁友强 中国农业大学 
刘彦伟 中国农业大学 
杨丽 中国农业大学 
张东兴 中国农业大学 
崔涛 中国农业大学 
钟翔君 中国农业大学 
中文摘要:设计了一种基于Android和CAN总线的玉米精量播种机监控系统,通过GPS接收器采集播种机速度,采用CAN总线分布式控制方式完成主控制器和各个播种单体之间的指令传输,通过Android智能设备进行人机交互,实现播种行数任意拓展、拖拉机位置实时监控、播种作业参数在线调整、作业面积实时统计等功能。台架试验结果表明,系统人机交互功能正常,排种器驱动电机调速相对误差小于0.46%。与eTrex209x手持式GPS+北斗双星接收机的田间作业面积对比试验表明,本系统作业面积统计平均相对误差为0.81%,略高于eTrex209x的0.29%,测量标准差为0.06hm2,优于eTrex209x的0.11hm2;与地轮驱动播种对比试验的结果表明,随着作业速度的提高两种驱动方式的作业质量整体都呈下降趋势,但本系统播种合格指数、变异系数受速度影响较小,当作业速度达到12km/h时,变异系数为18.92%,合格指数为90.05%,分别优于地轮驱动方式的22.17%、83.25%。
DING Youqiang  LIU Yanwei  YANG Li  ZHANG Dongxing  CUI Tao  ZHONG Xiangjun
China Agricultural University,China Agricultural University,China Agricultural University,China Agricultural University,China Agricultural University and China Agricultural University
Key Words:maize  precision planter  planter position monitoring  Android  GPS  CAN bus
Abstract:High speed and high precision is the development trend of maize precision planter,under the premise of ensuring the seeding quality of operation reached the national standard,the working speed of the existing pneumatic seed metering device can reach more than 12km/h,traditional maize precision planter mostly used land wheel to drive or measure speed,the phenomenon of land wheel slippage and chain hopping is easy to occur under high speed operation conditions,so its difficult to ensure the seeding quality and exert the potential of the high speed operation of the seed meter device. In addition, the maize precision planter only has a single function, and the sowing plant spacing is mostly adjusted by gear set, so it is not possible to achieve stepless adjustment of plant spacing. A maize precision planter monitoring system based on Android and CAN bus was designed, as the system was working, the speed of the planter was collected by GPS receiver, after parsing the speed information from the GPS signal, the master controller would send the driving motor speed adjustment instruction according to the seeding operation parameters, and the command transmission between the master controller and each seeding unit was completed by CAN bus. Human machine interaction through Android smart device can realize the functions of arbitrary expansion of seeding rows, real time monitoring of planter position, online adjustment of seeding operation parameters, and real time statistics of working area. In order to test the performance of the system, bench test and field test were carried out respectively. The bench test results showed that the systems human computer interaction function was normal, the position, speed and working area of the planter and rotation speed of the meter can be displayed correctly. The relative error of the metering drive motor speed regulation was less than 0.45%. Field comparison test with area measurement of eTrex209x handheld GPS+ Beidou binary receiver showed that the statistical average relative error of the operating area of the system was 0.81%, which was inferior to that of 0.29% of eTrex209x, and the measurement standard deviation was 0.06hm2, which was better than 0.11hm2 of eTrex209x; ground driven seeding comparison test was carried out at plant spacing of 21cm, and five speeds of 4km/h, 6km/h, 8km/h, 10km/h and 12km/h, the test results showed that the quality of the two driving modes was decreased with the increase of the working speed, but the qualified index and distance variation coefficient of the system were less affected by the speed than ground wheel drive mode, when the operating speed reached 12km/h, the distance variation coefficient did not exceed 18.92%, and the qualified index was 90.05%, which was better than that of 22.17% and 83.25% of the ground wheel drive mode.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器