哈尔滨理工大学学士学位论文
参考文献
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硕士学位论文. 2009年6月: 6~60
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哈尔滨理工大学学士学位论文
in an Automatic Sorting System. IEEE. 2010: 1~3
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哈尔滨理工大学学士学位论文
附录
附录 A
行政单位 北京 天津 山西 辽宁 黑龙江 安徽 浙江 福建 湖北 广西 四川 云南 甘肃 青海 西藏 广东 香港 省级行政单位邮编（前两位）简明表 邮编（前两位） 行政单位 10 上海 30 内蒙古 03/04 河北 11/12 吉林 15/16 江苏 23/24 山东 31/32 江西 35/36 湖南 43/44 河南 53/54 贵州 61/62 重庆 65/66/67 陕西 73/74 宁夏 81 新疆 85 海南 51/52 台湾 暂无 澳门 邮编（前两位） 20 01/02 05/06/07 13 21/22 25/26/27 33/34 41/42 45/46/47 55/56 63/64 71/72 75 83/84 57 暂无 暂无
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哈尔滨理工大学学士学位论文
附录 B 参考英文文献 Design of a Cigarette Sorting System Based on
RFID Technology
Leizhang, Weixing Su, Kunyuan Hu, Lianbo Ma
Key Laboratory of Industrial Informatics
Shenyang Institute of Automation, Chinese Academy of Sciences
Shenyang 110016, China
Abstract
This paper presents a design method to solve the problems of high failure rate and sorting inefficience in the current cigarette sorting system by integrating RFID technology with CAN BUS. Based on the features of high speed of data transmission, real-time and high reliability, CAN BUS intelligent node is designed. RFID technology enhances the speed and efficiency of cigarette identification. Meanwhile, using the LCD touch-screen and MCGS configuration software, the HMI operation is promoted and the visualization of monitoring processing can also be accomplished.
Keywords RFID; CAN BUS; configuration software; AVR MCU
I.INTRODUCTION
The cigarette sorting system is the core of the logistics and distribution. Every modern logistics distribution center depends on the sorting technology and it’s method. Constructing an advanced sorting system with effective throughput can not only save tens, hundreds or even tens of millions of cost, but also improve efficiency, significantly reducing the labor intensity of the workers.
Traditional cigarette sorting system collects data by barcode with a low-cost, easy to read and reproduce. However, the bar code and optical scanning are easily affected by dust, oil and other pollutions in the sorting field, and
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哈尔滨理工大学学士学位论文
traditional data transmission of sorting system is use of RS485 bus with the advantage of multi-node support, far distance and highly receiving sensitivity. RS485 bus constitutes the network of single master. The equipment mutual communication can be achieved by the master node. Thus there are the lower throughput, poor real-time and highly difficulties of communications between slaver nodes.
In our work, we introduce RFID technology to replace bar code identification. RFID system is not influenced by dust, humidity, oil, coolant, mining and toxic gases in the production environment. Compared with bar code identification, RFID is a contactless technology that allows objects to be scanned and identified without visual or physical contact[3]. More importantly, the tag data is not only read by RFID readers, but also can be written time and again. Currently the cost of RFID tag is gradually reduced, and the tag which ties up with the cigarette box can be reused. It further reduces the cost of system.
Furthermore, the traditional RS485 bus is replaced by High-speed CAN bus which provides a multi-master hierarchy, broadcast communication, sophisticated error detecting mechanisms and re-transmission of faulty messages . These feathers allow building intelligent and redundant systems ,which guarantee data integrity and real-time data transmission.
With the deployment of RFID middleware and ERP/SCM software platform, the ultimate goal of integration of the tobacco supply chain logistics enterprise system will be achieved.
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