英文摘要 | Combining with RFID technology, conveyer plays a very important role in the modern industrial automation, for it can effectively save transportation time, reduce human capital as well as improve the overall efficiency of production line. However, there are many factors involving in RFID tags reading, including equipments and manufacturing environment of production line, which will finally have an impact on stability and reading rate as well as the automation status of production line and logistics. In order to improve the tags reading rate, this dissertation, on the basis of our previous research, proposes a manufacturing logistics detection channel system, aiming at exploring the requirements that lead to the highest tags reading rate. The main work of this dissertation is as follows. 1. An overall channel detection system design solution is firstly proposed based on the requirement of real industrial environment. Paritularly, the whole system consists of a hardware system, a software system and a reading rate test system. In addition an automated guided vehicle (AGV) is adopted to imitate the conveyer belt with flexible controlling of goods transmitting and RFID reading rate test. 2. A hardware system of the manufacturing logistics detection channel is designed and implemented according to the need of manufacturing production line. Specially, the system consists of five parts: an automated guided vehicle (AGV), RFID tags, detection channel, RFID reader as well as three antennas and a main control platform. Then the detailed description of mechatronic design and role of every part of the logistics detection system is introduced. 3. A software system that implements AGV control, channel detection control and remote platform control is developed. More specifically, AGV control software is responsible for the control of AGV movement while channel detection control software is designed for RFID antennas movement control. The whole detection system, including communication with the AGV, tags reading control with RFID reader, data analysis and preservation, is controlled by the remote platform software. 4. Preliminary experiments are conducted to explore the working rule of the developed detection channel system. More exactly, four test cases are firstly designed to find out the relationship among the reading rate of tags, the moving speed, the position of tags as well as the location and azimuth of antenna. By changing only one of th... |
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