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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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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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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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随着物联网和通信技术的发展,视频监控技术在生产和生活中将得到广泛应用,5G时代的到来,无线视频监控也将得到更大的发展.基于ARM Cortex-A8的无线视频监控系统,可实现对真实场景的实时监控,监控设备采用无线接入方式,为了通信安全,采用软件加密技术,确保了视频加密传输的可靠性. 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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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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《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
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 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