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谈谈红外一体机
http://www.siying-sh.com/hyjs/650.htm
红外机,在使用上得配上红外灯,在户外时又得加防护罩,摄像机还要有镜头,整组体积庞大,价格又高,近距离使用时就像大炮打蚊子,不太现实,就有人想到用LED,就是遥控器用的LED,有850nm的,洗块板子,装他几十颗,加个光敏电阻(CDS)来侦测光线强度当开关来控制LED,板子中间挖个洞,再买片摄像机板,装个机板镜头,往LED板一套! 这时期的红外机有些问题,一是LED发射角度是固定的,因此打出去的光线无法调整,只能搭配几种角度的镜头,第二,功率不高,打不远.市场量又不大,想要LED厂帮你订做,门都没有,因此,效果不太好,但是很少人在搞,价格又高,可卖到2000多,十多年前搞这玩意的人还真的赚了一票.(说到这里,咦! 其实,在那时候,搞摄像机的单子都接不完,那有空理这雕虫小技,光卖机板给人装红外机就很好赚了. 随着科技的进步,LED功率越做越大,越来越亮,尤其民用上的红绿灯改用高亮度LED,这时有一颗LED出来了,就是拿红绿灯用的那种,改成红外线,四四方方的,叫”食人鱼”,拿来用还挺不错的,但角度是固定的,不太实用,就有人想到开了片透镜,放在LED板前头,不就可以改便发射角度了吗! 还有,机板只有分质量好跟质...
宛平公寓监控工程
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什么是视频监控系统？
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网络视频监控与视频会议系统的区别
http://www.siying-sh.com/hyjs/649.htm
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Siying Chen | To shape a better world
To shape a better world. To shape a better world. Under the Sea Playground 2013. Blog at WordPress.com. Follow “Siying Chen”. Get every new post delivered to your Inbox. Build a website with WordPress.com. Add your thoughts here. (optional).
d n t 2008
Monday, September 1, 2008 ' 3:58 PM. Acrylic is a useful, clear plastic that resembles glass. But has properties that make it better glass in many ways. Acrylic is used to make various products, such as shower doors, bath enclosures, windows and skylights. It is much stronger than glass, making it more impact resistant and safer. For instance, falling against an acrylic shower door will not likely break it. Acrylic also insulates better than glass, and so, saving on heating bills. TAN SI YING - 2e1.
siying-fingerprintsonthesand.blogspot.com
SiYing♣
Monday, November 29, 2010. 191110 congrats babe (:. Congratulation to my babe yuzana finally found her mr right mwuahaha. Betul sweet the both of them.jealous ;). Thursday, November 25, 2010. What I've learned in shanghai :D. Seriously I think I improved just abit arghhhhhhhhh. So yeah this is what i learned in shanghai,the cat eyes i think lol. Minnie mouse bow.from shanghai :DD. Shanghai World Financial Center. Garden near my uncle's house omgeee its go awesome there. I know i look i retardedx). Follow...
%SUBLIME
Wednesday, July 2, 2008. 我真不知道要说些什么. 就是, 最近心情不好, 为了考试的是和家里的一些事吧. 我觉得, 老师们都以为我的成绩以前很优秀, 现在也一样优秀. 每个人都认为我的考试成绩一定会很好, 不过, 我只想和其他同学一样, 我不要别人用别的眼光看待和对待我. 我也不知道为什么,我突然间对读书不感兴趣. 我不要大家对我有很高很高的期待, 因为, 我知道我的考试成绩不会以别人以为我会得到的成绩一样. 我不要我拿到不理想的成绩后,别人就来唠叨我. 我希望老师们能把我当成普通的同学, 不要对我有太高的期待, 因为我不要任何人失望. 大家都以为我和以前一样, 乖乖的, 不过,大家都不知道,我变了. 当我做出以前不会做的事时, 他们都会问我我为什么这样做. 我长大了,不要把我当成乖乖的小孩子看待. 这并不代表我不在乎我的学业, 我还是在乎的, 我会尽力而为, 不过, 不要再把我当成成绩优秀的学生了. 又开学了 功课越来越多,压力也越来越大. 怎么办? PSLE 只有多两个多月就开始了，救命呀 还有，我妈妈一直给我压力，说我一定要靠进NYGH. 他也常常拿我和别人比较。
at the end of the rainbow ..........
Monday, July 16, 2007. It was super duper. Having muscle ache all over now. Although it was tiring. We all learnt a lot. Lots of important lessons. I will never forget the times we shared. During the 3 days camp! Anyway, will b having biochem lec quiz later. Juz realised that i'm gonna hav. Btw, will be posting the. Photos we took during e camp soon! Saw a rainbow @. Thursday, July 05, 2007. Long time no blog liao. Been really really busy nowadays. By the way,. The asc namecard has been printed out!
安防工程|综合布线|电子围栏|公共广播|集团电话上海斯颖
公告 承接工程 代客安装 免费设计 免费上门 上海斯颖021-60417586. 并且公司拥有一支专业、敬业的技术工程师队伍， 汇集了各个专业方向的人才，他们富有朝气，不仅有精深的专业知识，而且有丰富的技术、施工经验，为企业发展奠定了坚实的基础，使我们能为各类客户提供良好和长久的服务. 更多.
jus me
Siying. buz undergrad. dob`10sept83. icq`59240914. inspires 2b` a writer. Thursday, May 14, 2015. So i didn't like it. It wasn't even day 1, but I realised I didn't like it. Posted by siying at " title="permanent link" 12:11 AM. Thursday, March 19, 2015. The thing about holiday. Is that, I feel that life has stopped in its tracks. Maybe, it's one of those things that you do without knowing why you do it. Maybe you really need it. Never seems ready to leave and come back again. Tuesday, March 03, 2015.
finally quiet in my head
Finally quiet in my head. Fickle, fuddled words confuse me. 16 August 2008 @ 11:26 pm. Belinda carlisle - half the world. 16 August 2008 @ 05:31 pm. Ich war für drei Tage in Berlin allein. 21 July 2008 @ 01:38 pm. Chuck Palahniuk. 3 days in England and Scotland and I'm not there anymore. NOW I'm upset. I'm dying to read Snuff. DYING. Tori amos - a sorta fairytale. 10 July 2008 @ 12:10 am. Because I was tagged. The corrs - runaway. 10 July 2008 @ 12:03 am. 2 days ago actually. 03 July 2008 @ 07:12 pm.
Si Ying | a.k.a Angela
August 13, 2015. Well, I digress. It’s just me. I don’t have the courage to face myself. It’s weird isn’t it. To think again, maybe I was just not observant and had not much conscious and awareness of my surroundings. And I’ve grown up and knew more things in life. It was 2.52AM when I started this post, I had a compelling force to on my laptop and let it off. Now that it’s already 3.15AM, I ought to catch some sleep, if I can that is. Big hug and tell me everything would be okay.
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