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精通无线监控技术的朋友请进。。。。

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安防幼儿园学生

Rank: 1

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2
发表于 2007-2-5 06:13:22 | 显示全部楼层

re:可以用微波,还可以是WIFI

可以用微波,还可以是WIFI
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安防偶像

夜视设备 www.nvoe.com

Rank: 7Rank: 7Rank: 7

积分
2221
发表于 2007-2-5 07:22:32 | 显示全部楼层

re:1. 要看他的预算2。 让甲方把所有...

1. 要看他的预算
2 o+ \; J9 `! {2 G; b, f 2。 让甲方把所有的要求提出来再设计方案。
8 Q1 K& D+ u3 R3 |1 w) S 3。 不能让甲方随心所欲的改方案。
5 f" j4 {5 {$ D+ W% n4。 我们可以提供2.5M 的realtime数字图像,他有那么多的钱吗?
7 [( V# v% y6 |" x一定要有自己的完整方案,甲方很会赖皮的。我们去年吃亏大了去了。
% Y6 D5 G: K% d! y
夜视设备,特种设备
www.nvoe.com
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安防小学生

Rank: 2

积分
92
 楼主| 发表于 2007-2-6 21:57:35 | 显示全部楼层

re:我现在用的这种是29个波段的,我用的发射...

我现在用的这种是29个波段的,我用的发射机只能用其中的四个波段,13.15.17.19
1 _: O; x/ l! b如果设备数量再多的话感觉做起来比较麻烦。
4 X- [1 a) P/ ]- _/ P: O+ Z# X/ W 另外还有个问题就是设备的室外放置问题,大部分接收设备不具备防水功能,而且只带一个大约10CM的天线,室外安装的话对防水造成了很大的困难。
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安防精英

Rank: 4

积分
521
发表于 2007-2-8 18:54:33 | 显示全部楼层

re:有经验的 上来说两句,我也想学学

有经验的 上来说两句,我也想学学
% ?1 }+ v- e& T4 ]2 D
天津做工程,有什么经验大家交流,说不定你还有好的收获!!!lyanlong@126.com
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安防小学生

Rank: 2

积分
76
发表于 2007-2-8 21:18:59 | 显示全部楼层

re:只做过银行的远距离无线网络,监控无线产品...

只做过银行的远距离无线网络,监控无线产品没怎么接触过,关注中啊
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安防幼儿园学生

Rank: 1

积分
6
发表于 2007-2-10 01:31:38 | 显示全部楼层

re:5G 无线数字音视频传输模块介绍:...

5G 无线数字音视频传输模块介绍:
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" u5 `9 b1 N* y. B 1. Key Features
+ X3 | _8 l; ~ 1) Complete transceiver design of wireless communication at 5 GHz.
9 q! W. E# |! ]4 V 2) Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
% L! R9 {3 n% K! qdifferent country spectrum requirements.
- w6 n2 B; {, A" C# }/ c# G 3) Dynamic frequency selection to resist interferences.
! `+ k: V* s4 X5 J 4) Close-loop power control to minimize power consumption and be a friendly neighbor to
; L$ Z" e, v% Q% u- ?% F other WLAN networks at 5 GHz.
0 K$ |1 u, D- z- x0 i, | 5) Secure networking to assure privacy and content rights protection.
1 G7 B& _/ X& x6) Supports most of the digital video formats at TS layer including MPEG-2, MPEG-4,
( O! Z& b+ p5 ~3 DH.264 and VC-1 (WM-9).
, G% H) [' ~; S# c 7) Supports point-to-point video connection with full QoS and point-to-multipoint video
$ h- B' v' M2 b# S( Lbroadcasting.
+ `4 g+ N3 c& [ 8) Configurable expansion I/O connector enabling easy integration with existing host
* q0 R* E/ l: _" Ksystems.
" i8 V9 j! u5 u* W& L$ ] 9) HCI interface to the host CPU to enable flexible application development at the host level.
7 d) t; G3 X% U' J- s: p10) Transmission of IR control signals to the video source devices from the TV location.
6 O2 g- R# n0 k$ X" b 2. System Diagram
& z0 \7 E4 p3 EWAV3000 wireless module creates a proprietary 5 GHz wireless network for MPEG
6 h* E; u2 i T3 B. N2 V( itransport stream (TS) communication. The WAV3000 is a complete wireless transceiver module
. n" d T+ q) E# G8 I6 U. U, B that can be integrated as video sender and video receiver according to the host platform. When
5 L9 [1 L o) Y used as video sender, WAV3000 can be embedded in a video source device (DVD, VCR, PVR,
0 R4 k; M. |+ F5 @5 E1 j1 NSTB, or PC); and when used as video receiver, WAV3000 can be embedded in a video display
3 N: O! i! y1 m, m5 K2 ndevice (TV, flat panel or video monitors). So a pair of the WAV3000 provides a complete,
( M( k6 ?+ o2 J }% }glueless wireless connection from TS (of video source) to TS (of video display) with guaranteed
; j$ ?: a0 R ^' _$ J QoS.
6 F! d1 A: X% F7 e; l' }# _The WAV3000 includes a configurable expansion connector (CEC). All I/O signals can be
. l8 E# H! O% ]$ `" a8 v Qrouted and configured through the CEC enabling easy integration with existing host systems.
4 z! j' I5 O' r Figure 1 gives a functional block diagram of the WAV3000 and associated personality
' Q1 I! c, C( f- F" d+ k/ k module (PM). The personality module intends to simulate the host product platform in which the
# N7 _! }1 S, l ^ WAV3000 will be integrated. The PM supports demo and evaluation of the WAV3000 with a
8 k8 A1 K0 x" P& [ variety of video sources (analog and digital) for different applications. It also provides
" y/ o( @; k& t' g% f$ a capabilities for test and debugging of the core module.
$ W7 s" o$ h, J& ^7 U# V# V; e 3 Functional Specifications
The WAV3000 supports standard MPEG Transport Stream input and output in either
5 N3 J. R( J- J# x+ _* D% r Parallel or Serial mode.
The Tx unit transmits the compressed MPEG TS signal to the Rx unit over the air, using the
9 q/ A" a6 \" W' H. WWiViTM wireless networking technology at 5 GHz.
Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
# `% Q8 `- x) R% T: ?: a9 [0 A different country spectrum requirements.
The system support data rates from 6 Mbps to 60 Mbps.
The system supports video bit rates from 3 Mbps to 45 Mbps.
Proprietary radio resource control with dynamic frequency selection (DFS) and close-loop
4 Y# m M& k; B power control (CLPC).
Overall video propagation delay of less than 30 ms.
Receive sensitivity is –86 dBm for video rate of 6 Mbps, and –78 dBm for video rate of 20
% m, N C1 j0 l Mbps.
/ v1 {7 T/ M: }% @2 `- M/ c, u 4 System Security
! D1 u6 y, x2 g' VThe communication is authenticated and the media stream is encrypted to assure for
) W2 k( d7 Y0 I% j0 ~1 Fprotection of copyrighted material. Flexible pairing procedure between each Tx Unit and Rx Unit
9 C4 t1 S# Y3 ~ ensures private communications between each pair of units. This also allow for coexistence of
5 Y' m' V" k# p* J. _ multiple pairs of simultaneous operations without cross talk.
+ I8 C' z( X% [- [此主题相关图片
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! f. {2 u! c5 |9 D9 e3 d<
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安防中学生

Rank: 2

积分
115
QQ
发表于 2007-2-13 17:39:07 | 显示全部楼层

re:楼上的能给翻译成中文吗?

楼上的能给翻译成中文吗?
QQ:455032008   
E-mail:455032008@163.com    ccgoodliu@gmail.com      http://goodluck168.b2b.youboy.com/
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安防中学生

Rank: 2

积分
138
QQ
发表于 2007-2-13 17:40:00 | 显示全部楼层

re:使用无线IP的是可以做的,用802.11...

使用无线IP的是可以做的,用802.11A,或802.11B,等,那些是可以实现的啊
) J' O" ^$ @+ |$ X, v- Z/ S) @6 h可以联系我啊QQ358537237
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安防大学生

Rank: 3Rank: 3

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263
QQ
发表于 2007-2-20 17:31:40 | 显示全部楼层

re:学习中

学习中
本人现在还是安防的小小虾,请各位大哥多多帮忙呀.学习学习在学习.
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安防幼儿园学生

Rank: 1

积分
24
QQ
发表于 2007-2-22 04:33:59 | 显示全部楼层

re:我也不清楚来学习

我也不清楚来学习
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