集成LWIP协议的燃气表计费器自动化检测系统

发布时间：2018-07-23 18:23

【摘要】：燃气是国家的重要能源和经济基础。进入二十一世纪以来,国家不断加大对燃气行业的支持力度,各种数据表明国家燃气的消费量与日俱增。燃气表作为燃气行业最重要的计量产品,人们对它的要求也越来越高使得智能燃气表的出现成为一种必然的趋势。随着计算机技术、自动化技术和通信技术的发展,燃气行业也开始运用自动化检测技术和信息化管理理念。当前的燃气表计费器检测系统比较落后,例如检测耗时长,在插卡和延时等待这些环节浪费了较多时间。检测结果不够详细,只能检测计费器的熄屏电流,而没有亮屏电流。针对这些问题,本文设计了一款以STM32F103ZET6为核心控制器的燃气表计费器自动化检测系统,系统与计费器通过线路连接,让系统模拟燃气表的所有运行状态以此来检测计费器的功能是否正常。与原系统相比本系统所具备的特点:检测流程可配置、检测信息可视化、电压无级可调、量传功能整合和数据采集等。实现了对计费器功能和相关技术指标的自动化检测和检测数据的信息化管理功能。本文的主要工作和成果如下:1.首先针对检测的现状和需求进行分析,设计出一套可行性方案,然后进行系统整体软硬件的规划和设计。2.在硬件系统方面,对每一个检测项目专门设计出相应的电路图。例如针对电压调控设计了程控电压模块,输出电压在2.5V至6.0V之间精度达到0.02V;针对计费器功耗设计了电流检测模块,精度达到1微安;针对流程信息和检测数据的存储问题,设计了FLASH模块来保存所有的数据;针对计费器的时间问题设计了日历电路;针对与服务器的数据交互设计了LWIP通信模块。3.在软件系统方面,上位机软件实现流程配置功能;卡片操作程序实现读写卡功能;程控电压程序实现电压无级可调;量传模拟程序负责配置计费器的计量、断线和磁干扰;LWIP协议负责与服务器的通信。4.整机测试结果表明基本实现了预期的效果,各功能和性能基本满足要求。与原系统相比各项功能有所改进,检测效率有所提升。最后,对全文进行总结,并对进一步的研究提出一些展望。
[Abstract]:Gas is the important energy and economic base of the country. Since the 21 century, the state has been increasing its support to the gas industry, and various data show that the consumption of national gas is increasing day by day. Gas meter is the most important metering product in gas industry, and the demand for it is becoming higher and higher, which makes the appearance of intelligent gas meter become an inevitable trend. With the development of computer technology, automation technology and communication technology, the gas industry has begun to use automatic detection technology and information management concept. The current metering system of gas meter is backward, for example, the detection time is long, and more time is wasted in the plug card and delay waiting. The test results are not detailed enough. Only the screen current of the meter can be detected, not the light screen current. In order to solve these problems, this paper designs an automatic detection system of gas meter based on STM32F103ZET6. The system is connected with the meter by circuit. Let the system simulate all the running state of the gas meter to check that the meter functions properly. Compared with the original system, the system has the following characteristics: the detection flow can be configured, the detection information can be visualized, the voltage is stepless and adjustable, the function of quantity transfer is integrated and the data collection and so on. The function of automatic detection and information management of meter function and related technical index is realized. The main work and results of this paper are as follows: 1. Firstly, according to the present situation and requirement of the detection, a set of feasible scheme is designed, and then the whole software and hardware of the system is planned and designed. 2. In the aspect of hardware system, the corresponding circuit diagram is designed for each test item. For example, a programmable voltage module is designed for voltage regulation and control. The output voltage is between 2.5V and 6.0V, the precision is 0.02V; the current detection module is designed for the power consumption of the meter, and the precision is up to 1 渭 A; the storage problem of the flow information and the detection data is pointed out. The FLASH module is designed to save all the data, the calendar circuit is designed to solve the time problem of the meter, and the LWIP communication module. 3 is designed for the data interaction with the server. In the software system, the upper computer software realizes the flow configuration function; the card operation program realizes the read and write card function; the programmed voltage program realizes the voltage stepless adjustment; the quantity transfer simulation program is responsible for configuring the meter metering, The LWIP protocol is responsible for communication with the server. The test results show that the expected effect is basically achieved, and the functions and performances meet the requirements. Compared with the original system, the functions are improved and the detection efficiency is improved. Finally, the full text is summarized, and some prospects for further research are put forward.
【学位授予单位】：浙江工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU996

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