基于ARM的嵌入式记录仪表的设计与实现

发布时间：2018-05-01 00:09

本文选题：记录仪 + 嵌入式　；参考：《哈尔滨理工大学》2015年硕士论文

【摘要】：记录仪表是检测和记录工业生产过程数据的工具，对于现代自动化工业系统来说是不可或缺的记录仪表。传统的无纸记录仪受到处理器运行速度和Flash容量的限制，导致对数据的处理和查询速度较慢，而且无法存储大容量的采集数据等问题。本文首先确定了记录仪整体结构的设计方案。然后设计了以ARM为处理核心的记录仪主机的硬件电路，在linux操作系统下，编写了采集、存储、界面的应用程序。设计了以STM32处理核心的记录仪功能子板，，包括万能输入板卡、电压电流板卡、报警板卡。最后，通过PCB制版和机械壳体设计实现了记录仪的样机，并对设计的记录仪进行了测试，测试结果表明本课题所研究的记录仪表运行稳定、符合本文预期的设计要求。本文设计的记录仪具有灵活的配置界面、密码安全管理、便于维护和升级的应用程序框架等优点。采用基于单一文件的sqlite数据库来保存采集数据，通过sql语句实现对历史数据的快速高效的查询工作。采用具有高速和高可靠性的CAN总线串行通讯方式来实现主机与功能子板之间的数据交互。系统在硬件电路上，采用功能子板的插卡式结构来提高记录仪采集各种类型传感器数据的适应能力。主机与子板的通讯协议允许记录仪扩展需要的子板板卡类型。人机交互界面采用曲线、数据、表格、棒图的形式来显示功能子板采集的实时数据。
[Abstract]:Recording instrument is a tool to detect and record the data of industrial production process. It is an indispensable instrument for modern automatic industrial system. The traditional paperless recorder is limited by the speed of the processor and the capacity of Flash, which leads to the slow processing and querying speed of data and the inability to store large capacity of collected data. This paper first determines the overall structure of the recorder design. Then the hardware circuit of the main computer of the recorder which takes ARM as the processing core is designed. Under the linux operating system, the application program of acquisition, storage and interface is written. The function subboard of STM32 processing core recorder is designed, including universal input card, voltage and current board and alarm board. Finally, the prototype of the recorder is realized by PCB plate-making and mechanical shell design. The test results show that the recording instrument studied in this paper runs stably and meets the expected design requirements. The recorder designed in this paper has the advantages of flexible configuration interface, password security management, easy maintenance and upgrade of the application framework. The sqlite database based on a single file is used to save the collected data, and the fast and efficient query to the historical data is realized by the sql statement. The CAN bus serial communication mode with high speed and high reliability is adopted to realize the data exchange between the host computer and the functional subboard. In the hardware circuit, the system adopts the card structure of the functional subboard to improve the adaptability of the recorder to collect the data of various kinds of sensors. The host-subboard communication protocol allows the recorder to expand the type of sub-board card required. The interface uses curves, data, tables and bar diagrams to display real-time data collected by functional subboards.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP216;TP368.12

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