基于ARM的化工罐区远程监控系统的设计

发布时间：2018-03-01 03:01

本文关键词： ARM-Linux GPRS 罐区监控嵌入式系统 Qt　出处：《南昌大学》2015年硕士论文　论文类型：学位论文

【摘要】：罐区是化工企业重要组成部分之一,它储存了大量的原料、中间体、成品等。对于一个高效生产的化工企业来说,罐区是不可或缺的。然而罐区也是企业最危险的地方,大多化工原料都是易燃、易爆、有毒或高压存储。因此对储罐中原料的状态参数和储罐周围环境进行监控非常重要。2014年,国家安全监管总局发布了《关于进一步加强化学品罐区安全管理的通知》,要求各企业必须完善化学品罐区监测监控设施。随着企业的做大,不同工序的原料分布在不同地方,罐区分布较散,难以做到集中管理。采用基于ARM-Linux和GPRS的嵌入式远程监控系统实现对罐区的实时监控是一种非常有效的方法,这样就可以使分布较散的罐区做到统一管理,管理人员可以方便的了解各个罐区的状态参数和原料的储备量。本文主要是对液氨罐区的嵌入式远程监控系统进行设计。该设计以ARM-Linux为核心,结合GPRS技术、现代传感技术,对液氨罐区的储罐压力、储罐液位、氨气浓度、气温等参数进行实时监控。当监控要素超限时,现场将及时发出语音报警,并通过短信的方式向安全管理人员发出警报,ARM微处理器控制相应的执行机构(如喷淋阀、泄压阀)降低或排除危险。首先对系统整体结构进行了设计。整个系统由两层结构组成,分别为现场嵌入式监测终端和数据监视中心。现场嵌入式监测终端负责罐区参数的实时监控测量、数据的传送、危险的判断、语音报警、以及安全联锁执行等工作。数据监视中心负责罐区状态数据的接受、显示、存储和管理。然后对各模块的硬件接口电路进行了设计,主要包括电源模块、存储模块、数据采集模块、语音模块、GPRS模块和安全执行机构模块。随后对现场嵌入式监测终端的软件进行了设计,包括内核的裁剪、编译、移植,各模块的驱动程序设计。最后介绍了以Qt为平台的数据监视界面的设计。
[Abstract]:Tank area is one of the important parts of chemical enterprise. It stores a lot of raw materials, intermediates, finished products, etc. For a chemical enterprise with high efficiency, the tank area is indispensable. However, the tank area is also the most dangerous place for the enterprise. Most chemical materials are flammable, explosive, toxic or high-pressure storage, so it is important to monitor the state parameters of the raw materials in the tank and the environment around the tank. 2014, The State Administration of Safety Supervision and Control has issued a notice on further strengthening the safety management of chemical tank areas, which requires enterprises to improve monitoring and monitoring facilities in chemical tank areas. As the enterprises grow larger, the raw materials for different processes are distributed in different places. The distribution of tank area is scattered, so it is difficult to achieve centralized management. It is a very effective method to realize real-time monitoring and control of tank area by using embedded remote monitoring system based on ARM-Linux and GPRS, so that the distributed tank area can be managed uniformly. Managers can conveniently understand the state parameters of each tank area and the reserve of raw materials. This paper mainly designs the embedded remote monitoring system of liquid ammonia tank area. The design takes ARM-Linux as the core, combines GPRS technology, and modern sensing technology. The parameters such as tank pressure, tank liquid level, ammonia concentration, temperature and so on in liquid ammonia tank area are monitored in real time. When the monitoring elements exceed the limit, a voice alarm will be issued on the spot. And send an alarm to the security manager by text message. Arm microprocessor controls the corresponding actuator (such as spray valve). The whole structure of the system is designed first. The whole system is composed of two layers. The field embedded monitoring terminal is responsible for the real-time monitoring and measurement of the parameters of the tank area, the transmission of data, the judgment of danger, and the voice alarm. The data monitoring center is responsible for receiving, displaying, storing and managing the status data in the tank area. Then the hardware interface circuit of each module is designed, including power supply module, storage module, and so on. Data acquisition module, voice module GPRS module and security executive unit module. Then the software of embedded monitoring terminal is designed, including the cutting, compiling and transplanting of the kernel. Finally, the design of data monitor interface based on QT is introduced.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ053.2;TP277

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