- 1、本文档共14页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
- 5、该文档为VIP文档,如果想要下载,成为VIP会员后,下载免费。
- 6、成为VIP后,下载本文档将扣除1次下载权益。下载后,不支持退款、换文档。如有疑问请联系我们。
- 7、成为VIP后,您将拥有八大权益,权益包括:VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
- 8、VIP文档为合作方或网友上传,每下载1次, 网站将根据用户上传文档的质量评分、类型等,对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档
查看更多
精品
毕业设计
中英文翻译
机电工程学院 学生姓名: 学号:
机电工程学院
探测制导与控制技术学 院:
探测制导与控制技术
专 业:
指导教师:
2012年 6月
High–Speed Data Acquisition System Based on ARM Linear-CCD
Dong Jianjun Zhao Xiaojin
Dept. Four, The First Aeronautical Technical College of the Air Force Xinyang 464000.China.
Abstract : This paper presents a high speed acquisition system of linear-CCD based on ARM, high-speed linear-CCD and high-speed ADC are selected. As the sampling speed of A/D is slower than the working clock frequency of ARM, CPLD and FIFO are used as I/O between A/D and ARM. It makes the circuit works harmonious, simple and easy controlling, and also increases the efficiency of ARM. In order to increase the communication speed, the Universal Serial Bus (USB) technology is adopted to communicate with the PC. ARM is the key processor utilized to control the data sampling, data compute and data transfer. As a result, the whole system works effective. The system can be applied to the high speed data acquisition and operation situations from multi-channel analog signals.
Key Words : ARM; Linear CCD; Contact-line; Pantograph; Stagger –value
I. Introduction
In electrification railways, in order to extend the life of the pantograph on electric locomotives, so that the slider of pantograph wear evenly, the contact-line (electrified railway power feed line) in straight-line segments is arranged as zigzag route (curve section arranged in the form of polyline). The distance between the contact-line of positioning point and the pantograph centerline track is called out stagger-value, which is a key indicator of contact-line .
Stagger-value can not be ignored, the value too small will affect the slider of pantograph wear evenly and the purpose of extending using life; otherwise, in some cases (such as caught in a stiff winds), cause a large range of lateral movement of the roof (and the hig
您可能关注的文档
- 《浅析历史文化主题酒店的发展问题及对策》-毕业论文设计(学术).doc
- 《浅析辽宁工大勤工助学超市在市场营销环境中的营销策略》-毕业论文设计(学术).doc
- 《浅析泸州老窖一品坊终端促销策略》-毕业论文设计(学术).doc
- 《浅析孟子性善论》-毕业论文设计(学术).doc
- 《浅析秘书的礼仪修养》-毕业论文设计(学术).doc
- 《浅析民营企业文化建设的问题及对策》-毕业论文设计(学术).doc
- 《浅析南昌市高校周边餐馆情感营销策略》-毕业论文设计(学术).doc
- 《浅析农村学校艺术教育工作现状及解决》-毕业论文设计(学术).doc
- 《浅析农村音乐教育不足及几点建议》-毕业论文设计(学术).doc
- 《浅析葡萄的管理技术》-毕业论文设计(学术).doc
文档评论(0)