杨明山,王梦灏,陈远港,顾永刚,翟 超.基于ZigBee的LAMOST无线控制系统设计[J].测控技术,2021,40(6):107-113 |
基于ZigBee的LAMOST无线控制系统设计 |
LAMOST Wireless Control System Based on ZigBee |
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DOI:10.19708/j.ckjs.2021.02.216 |
中文关键词: ZigBee无线控制 阻抗匹配 成组控制 LAMOST |
英文关键词:ZigBee wireless control impedance matching group control LAMOST |
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中文摘要: |
在LAMOST系统中,为了同时观测到4000个天体,需要控制4000个光纤单元,针对LAMOST无线控制系统中存在的问题,设计了一套基于ZigBee的无线控制系统。子节点控制板硬件设计包括电源设计和射频设计。电源设计采用开关电源,降低了子节点控制板的静态功耗;射频设计采用了阻抗匹配、电容电阻微调阻抗等关键技术,减少了信号的损失与反射,极大提高了子节点控制板的无线通信质量。针对主节点,采用了STM32+射频控制CC2530+功率放大RXF2401C的设计,提高了主节点无线发送的信号质量和接收的灵敏度。软件方面,对LAMOST控制的特征进行了研究,采用成组发送、逐一轮询的方式进行控制,采用奇偶校验、时效性查询的方法,提高了系统的通信可靠性,减少了通信时间。经试验测试,该系统具有高可靠性、高效率、低功耗等特点,可完全满足LAMOST工程上的应用。 |
英文摘要: |
In the LAMOST (Large Sky Area Multi-Object Fiber Spectroscopy Telescope) system,in order to observe 4000 celestial bodies at the same time,4000 optical fiber units need to be controlled.In order to solve the problems in the LAMOST wireless control system,a set of wireless control system based on ZigBee is designed.The hardware design of the sub-node control board includes the designs of power supply and radio frequency.The power supply is redesigned with switching power supply,which reduces the static power consumption of the sub-node control board.The RF design uses key technologies such as impedance matching,capacitor and resistor fine-tuning impedance,which reduces signal loss and reflection,and greatly improves the wireless communication quality of the sub-node control board.For the master node,the design of STM32+radio frequency control CC2530+power amplifier RXF2401C is adopted,which improves the quality of the wireless signal sent by the master node and the sensitivity of reception.In terms of software,the characteristics of LAMOST control are studied.The control is carried out by group sending and polling one by one.The method of parity check and timeliness query is adopted to improve the communication reliability of the system and reduce the communication time.Tests show that the system has the characteristics of high reliability,high efficiency,low power consumption,etc.〖KG-*5〗,which can fully meet the application of LAMOST Engineering. |
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