基于虚拟仪器的可编程智能电池参数实时监控系统设计

范文编号:CK062   范文字数:15270,页数:28

摘  要
 随着数码电器的普及，电池的消耗越来越大。目前,我国的电池生产企业有350多家,每年各类电池的年生产量约150-160亿只,国内消费量为70亿只左右,并且这个数据每年以10%左右的速度在增长。如不及早考虑再次利用，不仅造成资源的大量浪费，而且会使环境遭受巨大污染。现如今，随着数码电器的普及，可充电电池在人们的日常生活中已随处可见，成为必不可少的日常生活用品之一。对充电电池维护不当将直接影响电池的使用效益和寿命。通过在线监测电池的工作参数，可以了解电池的工作状态、工作特性及电池的维护情况。因此开发可编程充电电池参数实时监控系统具有积极意义。
 LabVIEW是一种程序开发环境，由美国国家仪器（NI）公司研制开发的，与其他计算机语言的显著区别是：其他计算机语言都是采用基于文本的语言产生代码，而LabVIEW使用的是图形化编辑语言G编写程序，产生的程序是框图的形式。其特点是基于通用计算机等标准软硬件资源平台，实现构建灵活、层次体系明晰、功能强大且人机界面友好的测控系统，因此在国内外许多测控应用中被广泛采用。
 本设计基于LabVIEW开发了一套可编程充电电池的实时参数监控系统。系统能够对镍氢电池和锂电池充电和放电时的电流、电压和温度进行监控，使能合理的对电池进行维护，并能测量电池的实际容量。

关键词：LabVIEW、测控软件、虚拟仪器、数据采集、实时监控

Abstract
 Along with the popularization of digital appliance, the consumption of battery is increasing. At present, there are more than 350 battery production enterprises in China, the annual output for various types of battery is about 15 billion to 16 billion, the domestic consumption is around 7 billion, and the data of consumption is increasing at the rate of 10% every year. If we do not consider the reuse of batteries timely, it will not only resulted in substantial waste of resources, but also lead to the seriously pollution of the environment. Nowadays, we can see rechargeable battery everywhere in our daily life and it becomes one of the indispensable daily necessities. The improper maintenance of rechargeable battery will directly influence the usage benefit and useful life of the battery. Work through the parameters of on-line monitoring for the battery, we can understand the working status of the battery, job characteristics and the maintenance of the battery. Therefore developing the rechargeable is of positive significance. 
 LabVIEW is a programming environment; it is developed by the USA National Instruments, its notable difference with other computer language: other computer language is text-based language to Generate Code; In LabVIEW you build a user interface by using a set of tools and objects. The user interface is known as the front panel. You then add code using graphical representations of functions to control the front panel objects. This graphical source code is also known as G code or block diagram code. The block diagram contains this code. Its characteristic is based on general-purpose computer software and hardware resource platform, standards on construction level system; realize flexible and powerful clarity and friendly interface, thus the measurement and control system in the domestic many measurement is widely used in the applications.
 The design is based on the LabVIEW has developed a programmable rechargeable batteries real-time monitoring system parameters. System capable of lithium battery nigh batteries and rushed and discharge of the current, voltage and temperature monitor, enabling the reasonable for battery can be measured, and the maintenance of the battery actual capacity.

Keywords： LabVIEW、Software of measure and automation、Virtual Instrument、Data Acquisition、Real Time Monitoring    

目 录
摘要…………………………………………………………………….……….. . .…….……….I
Abstract………………………………………………………………………………II
1 前言…………………………………………………………….……………….……………..7
2 镍氢电池和锂电池及其标准简介………………………………………………....8
   2.1可充电电池的主要参数………………………………….………………….……………8
   2.2镍氢电弛(Ni—H)…………………………………………………………………….……8
   2.3锂电池( Li)…………………………………………………………………………………9
   2.4电池充放电的（国际）标准……………………………………………………………..10
3 LabVIEW语言概述…………………………………………….………………………. . .11
3.1  虚拟仪器VI…………………………………………………………...……….……….11
3.2  LabVIEW语言简介…………………………………….………………………….... . .11
3.3  LabVIEW的数据采集简介……………………………………………………. .……12
4 总体方案设计……… ……….…………………………………………………...…….....16
 4.1  系统硬件概况………………………………………………………………………….17
 4.2  系统软件设计………………………………………………………….………………17
    4.2.1 虚拟仪器前面板………………………….…..………………….………………17
    4.2.2 应用程序开发……………………………………….………………...…………18
5  程序设计…………………………………………………………………………………....19
 5.1  LabVIEW数据采集…………………………………………………….……….…….19
        5.1.1采用NI的板卡实现数据采集…………………………………………………20
 5.2  电池的充电监控设计…………………………………………………………………21
 5.2.1 程序应用的节点简介…………………………………………..………………22
 5.2.2 编程思路……………………………………………………………………......22
 5.2  电池容量计算…………………………………………………………………………23
 5.3.1 程序应用的节点简介…………………………………………..………………23
 5.3.2编程思路………………………………………………………….……………..24
 5.3 总体程序…………………………………………………………….…………………..24
6  总结………………………………………………………………….………………..……...26
致谢………………………………………………………………………………………..……...27

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