基于嵌入式系统的动态系统远程控制通信平台的开发

G. D. Reyes, M. Á. H. Pérez, E. M. Carmona, P. G. Ramírez, G. Hermida-Saba, J. A. Salgado-Fernández
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引用次数: 1

摘要

本文介绍了一种利用嵌入式系统(如微控制器)实现的无线通信方案,通过该方案,利用模拟电子学对仿真一阶动态系统进行数据采集和远程控制作为案例研究。所实现的通信方案类似于客户机-服务器类型的系统,并通过蓝牙模块在两个Microchip®pic类型的微控制器之间进行远程通信,这些微控制器在通信系统中充当节点。在这个意义上,发起通信的节点(服务器)通过模数转换器连接到动态系统,远程节点接收到信息,再将信息发回,形成反馈系统。这种通信系统受到信息传输和接收所固有的不活动时间(时间延迟)的影响。因此,为了处理这些不活动时间的影响并能够修改仿真动态系统的建立时间,在客户端节点中实现了比例-积分-导数(PID)型数字控制器。对于本工作中报告的数字控制器的调谐,使用一阶pad近似将不活动时间建模为时间延迟。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of a Communication Platform through Embedded Systems for Telecontrol of Dynamic Systems
This paper presents the implementation of a wireless communication scheme that makes use of embedded systems such as microcontrollers, through which data acquisition and telecontrol of an emulated first-order dynamic system using analog electronics is performed as a case study. The implemented communication scheme works analogously to a client-server type system and enables remote communication through Bluetooth modules between two Microchip® PIC-type microcontrollers, which act as nodes in the communication system. In this sense, the node that initiates the communication (server) is connected through an analog to digital converter to the dynamic system, and the remote node receives the information, which in turn sends it back, forming a feedback system. This communication system is affected by inactivity times (time delays) that are inherent to the transmission and reception of information. Therefore, to deal with the effects of these inactivity times and to be able to modify the establishment times of the emulated dynamic system, proportional-integral-derivative (PID) type digital controllers are implemented in the client node. For the tuning of the digital controllers reported in this work, the inactivity times are modeled as time delays using a first-order Padé approximation.
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