基于Wi-Fi的蓄电池自动配组系统设计与实现

发布时间：2018-01-15 02:04

本文关键词：基于Wi-Fi的蓄电池自动配组系统设计与实现　出处：《杭州电子科技大学》2015年硕士论文　论文类型：学位论文

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【摘要】：随着铅酸蓄电池产业的高速发展,它已是我国新能源领域中重要的组成部分。铅酸蓄电池具有循环性好、续航时间持久,且价格低廉等特点,在我们日常生活中作为动力能源起到非常重要的作用。通常,由于单体铅酸蓄电池的驱动能力不强,因此蓄电池必须以电池组的形式才能给电动车提供足够的动力。蓄电池在正常工作时,由于其组内的单体蓄电池存在性能上的差异,如果这种差异过大,会对整体蓄电池的性能造成很大的影响,最终导致动力铅酸蓄电池组的使用寿命提前终止。目前,国内大都数蓄电池生产厂商由人工的方法进行电池配组。采用人工的电池配组方法会有测量电压不精确、记录电压繁琐、配组运算大等问题。基于Wi-Fi的蓄电池自动配组系统需要较少的人工参与,具有配组的准确率好、成功率高、稳定性优等特点,改善了蓄电池配组现状。本文的研究工作主要有:(1)学习Wi-Fi组网技术,将一种基于C/S架构的分布式局域网应用在蓄电池自动配组系统之中,每个设备终端通过Socket套接字与服务器通信,构成一主多从的“星”式系统架构;(2)分析现有的蓄电池生产厂商的配组工艺,提出一种基于图割理论的快速配组算法;(3)运用C#语言开发了上位机服务器软件,为多个下位机手持式配组仪提供服务;(4)在下位机手持式配组仪上移植了μC/OS-II实时操作系统,用来完成多任务工作,通过4.3寸液晶触摸屏,设计了友好的人机交互界面,提高自动配组的效率;(5)编写下位机Bootloader程序,方便用户直接通过上位机软件对手持式配组仪终端进行程序更新。(6)设计了上位机和下位机之间的通信协议、CRC校验算法以及状态机的数据接收方法。经现场测试,与传统的人工配组相比,基于Wi-Fi的蓄电池自动配组系统具有配组效率高、组内单电池的一致性好、操作界面方便、使用简单等优点。在3200个现场采集电池数据的验证下,电池配组的成功率高达96.5%,相比相同数据的人工配组的成功率提高了44.4%,且配组后的电池组中单体电池一致性也有较大提高,基本达到了预期目标。
[Abstract]:With the rapid development of lead-acid battery industry, it has become an important part of the new energy field in China. Lead acid battery has the characteristics of good circulation, lasting life, and low price. In our daily life as a power source of energy plays a very important role. Usually because of the single lead acid battery drive capacity is not strong. So the battery must be in the form of battery pack to provide enough power to the electric vehicle. When the battery is in normal operation, because of the difference in the performance of the single battery, if the difference is too big. Will have a great impact on the performance of the whole battery, eventually leading to the end of the life of the power lead-acid battery. Most of the domestic battery manufacturers use artificial method to match the battery. Using artificial battery matching method will lead to inaccurate measurement of voltage and tedious recording voltage. Wi-Fi based battery automatic matching system needs less manual participation, and has the characteristics of good accuracy, high success rate and excellent stability. The current situation of battery allocation is improved. The main research work in this paper is to learn Wi-Fi networking technology and apply a distributed LAN based on C / S architecture to the battery automatic assembly system. Each device terminal communicates with the server through Socket socket to form a master multi-slave "star" system structure; 2) analyzing the existing technology of battery-making manufacturer, and putting forward a fast algorithm based on graph cutting theory. C # language is used to develop the upper computer server software, which can provide service for many lower computer handheld distribution devices. The 渭 C / OS-II real time operating system is transplanted on the hand-held matching device of the lower computer, which is used to accomplish the multitask work. The friendly man-machine interface is designed through the 4.3-inch LCD touch screen. Improve the efficiency of automatic matching; 5) write the Bootloader program of the lower computer. The communication protocol between the upper computer and the lower computer is designed. CRC calibration algorithm and data receiving method of state machine. Compared with the traditional manual matching system, the automatic battery matching system based on Wi-Fi has high efficiency. The single battery in the group has the advantages of good consistency, convenient operation interface, simple use and so on. Under the verification of the data collected from 3, 200 sites, the success rate of battery matching is as high as 96.5%. Compared with the same data, the success rate of the artificial group is increased by 44.4%, and the consistency of the single cell in the battery pack is also greatly improved, which basically achieves the expected goal.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN92;TM912

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