共查询到20条相似文献，搜索用时 62 毫秒
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利用ARM cortex-A8开发一个无线网络视频监控系统。采用系统采用B/S架构,用WiFi网络传输视频数据,由Web视频服务器、无线传输模块和远程监控终端3部分组成。探讨Web视频服务器的软硬件设计,包括服务器硬件平台搭建、Linux系统移植部署、MJPG-streamer移植及WiFi网络构建。测试结果表明,系统运行稳定,实时性较高,可实现多终端同时监控,采集到的图像清晰流畅,无明显失真,视频监控效果良好。 相似文献
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张校磊 《成都航空职业技术学院学报》2013,29(1):58-60
本文设计了一种基于无线传感网络的智能家庭安防系统,主要功能包括智能门禁系统、智能门窗防盗、煤气泄漏监测、远程视频监控、客户端和手机远程监控。该系统采用CC2530及传感器构建ZigBee家庭局域网,采用$3C2440A作为硬件平台,并搭载Linux操作系统来设计家庭网关,利用3G数字移动通信系统作为家庭外网。可通过3G网络与Intemet客户端软件实现远程监控。实际测试结果表明,该系统稳定可靠、方便扩展、界面友好。 相似文献
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远程视频监控系统是现代矿井安全生产监控系统的重要组成部分。本文介绍了一种基于MPEG4的网络视频服务器的设计与实现。该设备实现了实时视频MPEG4编码压缩,并通过嵌入式操作系统实现视频流的网络传输功能,符合当今视频监控技术的发展和应用推广。 相似文献
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为解决移动机器人远程控制终端不便捷问题,提出基于4G网络的移动机器人远程控制监控系统,使用Android手机客户端通过4G网络进行远程视频监控|以TCP与UDP协同作用的方式对控制命令和图像信息进行远程传输。实验证明,Android智能手机终端可实时进行视频监控,并远程控制移动机器人运行状态。远程控制更加便捷,应用范围更广。 相似文献
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远程视频监控系统是现代矿井安全生产监控系统的重要组成部分.本文介绍了一种基于MPEG4的网络视频服务器的设计与实现.该设备实现了实时视频MPEG4编码压缩,并通过嵌入式操作系统实现视频流的网络传输功能,符合当今视频监控技术的发展和应用推广. 相似文献
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MPEG4网络视频服务器在煤矿监控系统中的应用 总被引：1，自引：0，他引：1
远程视频监控系统是现代矿井安全生产监控系统的重要组成部分。本文介绍了一种基于MPEG4的网络视频服务器的设计与实现。该设备实现了实时视频MPEG4编码压缩，并通过嵌入式操作系统实现视频流的网络传输功能，符合当今视频监控技术的发展和应用推广。 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献