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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

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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

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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
0 S) t& W2 L& q+ m1 e 2。 让甲方把所有的要求提出来再设计方案。
7 z2 E$ r3 ]# v3。 不能让甲方随心所欲的改方案。
) F5 ~9 \! B2 x4。 我们可以提供2.5M 的realtime数字图像,他有那么多的钱吗?
/ i9 A* b$ o# y# Z: M) D4 S0 K) b 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。
2 M! v8 N% ?. F+ o# e
夜视设备,特种设备
www.nvoe.com
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安防小学生

Rank: 2

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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
0 a; S0 i0 }' h1 X" }如果设备数量再多的话感觉做起来比较麻烦。
5 S; Z: V7 ~* O0 }' ` 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

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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
9 b4 Q% f p& u
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

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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

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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:
3 F8 r! y4 I; S) P! F4 E9 f
; Q8 j0 C9 `, G- Z$ z$ i$ K 1. Key Features
6 Q5 O. P5 d7 ~8 U2 m k1) Complete transceiver design of wireless communication at 5 GHz.
/ {+ v& m9 b, E# r0 Y+ J 2) Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
, p, N/ V$ N) n' W( \ different country spectrum requirements.
: L9 `( b3 P1 \+ }3 c 3) Dynamic frequency selection to resist interferences.
7 w. R4 {: x% U- A6 ~4) Close-loop power control to minimize power consumption and be a friendly neighbor to
" h) v4 @9 n" X9 V/ g% o, t other WLAN networks at 5 GHz.
5 m/ |8 ^: q X' U" n% f: x8 f 5) Secure networking to assure privacy and content rights protection.
# ~! R, M! C U* E 6) Supports most of the digital video formats at TS layer including MPEG-2, MPEG-4,
. g9 P- j: ~2 t9 \. rH.264 and VC-1 (WM-9).
5 b9 C4 ?/ e3 j6 V0 A, d7) Supports point-to-point video connection with full QoS and point-to-multipoint video
5 K4 w1 K) n' o7 C) Rbroadcasting.
# \3 o' F9 u; g' w9 e7 ], F: ]8) Configurable expansion I/O connector enabling easy integration with existing host
- B7 {% O8 N& u- y2 zsystems.
3 K( b; B) `. ~; T w2 k0 A7 ?5 L9) HCI interface to the host CPU to enable flexible application development at the host level.
`' R8 m" p* C 10) Transmission of IR control signals to the video source devices from the TV location.
: b8 Z- c/ P5 F/ J6 w* ~& ~8 j2. System Diagram
" Y3 M- ]! D+ G0 L WAV3000 wireless module creates a proprietary 5 GHz wireless network for MPEG
" O- F( p$ J t2 m$ Otransport stream (TS) communication. The WAV3000 is a complete wireless transceiver module
3 e) y% U* p9 mthat can be integrated as video sender and video receiver according to the host platform. When
' \1 e0 V5 O. Q7 n+ H X9 q" Hused as video sender, WAV3000 can be embedded in a video source device (DVD, VCR, PVR,
' }+ X* y) R' {, L% ^STB, or PC); and when used as video receiver, WAV3000 can be embedded in a video display
8 y0 ~: u4 H0 k* o device (TV, flat panel or video monitors). So a pair of the WAV3000 provides a complete,
! M9 h8 A4 ]# ?) c. aglueless wireless connection from TS (of video source) to TS (of video display) with guaranteed
; c6 n8 y( L9 b! ^- e; `. J* cQoS.
' {% f& d/ j0 o$ q- f- H The WAV3000 includes a configurable expansion connector (CEC). All I/O signals can be
: O0 m, u/ V5 Q$ O! s3 N: frouted and configured through the CEC enabling easy integration with existing host systems.
* |* I* N/ f; p; f! ?6 x" YFigure 1 gives a functional block diagram of the WAV3000 and associated personality
* a/ d4 M: ^1 ]7 ?2 o! l6 `' ~; dmodule (PM). The personality module intends to simulate the host product platform in which the
) R( o, [9 M9 L% U+ X+ [0 cWAV3000 will be integrated. The PM supports demo and evaluation of the WAV3000 with a
4 V3 k4 t* y j) `/ m: Dvariety of video sources (analog and digital) for different applications. It also provides
o" m& e. I/ W: Q/ u capabilities for test and debugging of the core module.
; d2 [$ z7 [9 H8 l( |6 F [ 3 Functional Specifications
The WAV3000 supports standard MPEG Transport Stream input and output in either
, B a8 J% i" U3 r/ LParallel or Serial mode.
The Tx unit transmits the compressed MPEG TS signal to the Rx unit over the air, using the
4 ]8 Y2 j( C2 m* E4 Q* W/ c WiViTM wireless networking technology at 5 GHz.
Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
$ s( g1 t# O* Q6 ]0 C7 Z$ u9 U 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
" L2 @5 Q$ n5 a; S( o, w5 bpower 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
' H0 |# B7 B: `7 i+ K4 B2 a# ? Mbps.
% o) p+ Y! x4 G8 u4 System Security
/ M! u4 k1 e) ?! H1 w9 r/ M, y+ `The communication is authenticated and the media stream is encrypted to assure for
- a( g1 W, p) _* q4 @7 B' r protection of copyrighted material. Flexible pairing procedure between each Tx Unit and Rx Unit
" _/ k) B" l; ]5 e) W3 U0 s ensures private communications between each pair of units. This also allow for coexistence of
1 _- c! J4 y E( E+ a9 u0 B/ h multiple pairs of simultaneous operations without cross talk.
+ {' @0 |+ B! Z7 b+ |% m" T 此主题相关图片
# {1 o+ L. a( B! w# G: L
% u: ?. k, e* p3 R- |1 t <
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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
) U9 s4 y0 o9 w( Y0 ]1 a0 s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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