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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
: N4 M6 U8 S* C3 V/ `+ f3 M2。 让甲方把所有的要求提出来再设计方案。
8 A" `% I" k/ ?* F5 F- j% a& a3。 不能让甲方随心所欲的改方案。
# y$ }6 d) B" e: n 4。 我们可以提供2.5M 的realtime数字图像,他有那么多的钱吗?
- r' @) J% X: Q, U4 N7 P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。
. [' t/ w1 f: v$ S+ u( r
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
5 o E! w+ g, J) a5 X如果设备数量再多的话感觉做起来比较麻烦。
. w: ~5 Y% _7 V6 W @9 I3 E 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
5 I7 M7 k* z3 v* T
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:
. u2 f1 g2 D0 G, w/ T/ |6 U
2 i$ i" E1 `% G. T# D1. Key Features
, Y6 y6 z9 O. p# @( q# [ 1) Complete transceiver design of wireless communication at 5 GHz.
9 V; C) b6 r. T6 z2 ]4 H 2) Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
5 \/ [5 v' T8 a2 s6 C" P( W different country spectrum requirements.
1 E& | o( o" ~8 _1 A. S/ T3) Dynamic frequency selection to resist interferences.
, g9 a! q4 ^ e, Q: a4) Close-loop power control to minimize power consumption and be a friendly neighbor to
0 k8 S" z! l' Z0 b1 D' ]other WLAN networks at 5 GHz.
$ E8 V1 l! o% K' Z 5) Secure networking to assure privacy and content rights protection.
2 D2 A+ i4 b' Y5 ~* D! l 6) Supports most of the digital video formats at TS layer including MPEG-2, MPEG-4,
* u: X" w3 V, J2 z1 i$ o H.264 and VC-1 (WM-9).
# `1 w' [$ l* F# ^* ~$ @5 i6 x$ l 7) Supports point-to-point video connection with full QoS and point-to-multipoint video
1 i2 i% G! c' e, r' l broadcasting.
) i* ^( U' K. K+ o U 8) Configurable expansion I/O connector enabling easy integration with existing host
, E @% P7 ~) o% z o1 u$ B: a( q' Usystems.
2 ~& }- y% o( G8 N' c9) HCI interface to the host CPU to enable flexible application development at the host level.
( x ?, X$ i' o" B 10) Transmission of IR control signals to the video source devices from the TV location.
f9 d4 c! h- _9 h/ n- u2. System Diagram
. k4 T9 E h1 h' {' L: _! @" a WAV3000 wireless module creates a proprietary 5 GHz wireless network for MPEG
" K9 a; a& n6 e. R& V7 K& J- p transport stream (TS) communication. The WAV3000 is a complete wireless transceiver module
, g9 R Y8 e( ~) U d' `8 Dthat can be integrated as video sender and video receiver according to the host platform. When
) r3 ~0 d) a; @/ |( I4 E used as video sender, WAV3000 can be embedded in a video source device (DVD, VCR, PVR,
6 A# s; K, ^' R5 Q8 i; [4 j I2 ~ STB, or PC); and when used as video receiver, WAV3000 can be embedded in a video display
/ M1 Q. s( b6 fdevice (TV, flat panel or video monitors). So a pair of the WAV3000 provides a complete,
. a+ L! B, G: r" J glueless wireless connection from TS (of video source) to TS (of video display) with guaranteed
- H) U4 \4 t& W7 X& z) O0 R# R% y QoS.
) i, }: M2 w7 @7 `8 |1 XThe WAV3000 includes a configurable expansion connector (CEC). All I/O signals can be
: h( o! ]" H/ N2 Trouted and configured through the CEC enabling easy integration with existing host systems.
# U: W* R0 w4 S f5 G6 s$ x0 mFigure 1 gives a functional block diagram of the WAV3000 and associated personality
( Z5 Z1 s& p7 c module (PM). The personality module intends to simulate the host product platform in which the
- u) E* o3 f7 J" P x# Q" `0 s WAV3000 will be integrated. The PM supports demo and evaluation of the WAV3000 with a
, y. p2 p! c" m! ^2 zvariety of video sources (analog and digital) for different applications. It also provides
+ o1 \6 ?/ g" c0 V/ R1 Y2 e9 Mcapabilities for test and debugging of the core module.
' l% d8 ~# N/ K: W' g! k. t2 ? 3 Functional Specifications
The WAV3000 supports standard MPEG Transport Stream input and output in either
( x" W7 \- ]1 j4 ^3 N' U Parallel or Serial mode.
The Tx unit transmits the compressed MPEG TS signal to the Rx unit over the air, using the
9 X9 c# N' {/ H; lWiViTM wireless networking technology at 5 GHz.
Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
( c, W) D9 y) [/ l, Odifferent 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
" N3 @3 [6 ?( t: E& j 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
, U9 e: x3 \: iMbps.
) F: x' }5 x: M+ {: e$ M* o 4 System Security
( I. S- `6 M+ r! R4 G The communication is authenticated and the media stream is encrypted to assure for
! ^6 G+ k8 J U3 A5 ~: J ? protection of copyrighted material. Flexible pairing procedure between each Tx Unit and Rx Unit
~" f" m4 e6 K* |) C. q2 g! \ensures private communications between each pair of units. This also allow for coexistence of
1 R$ |! ?3 i* g1 L- H7 y4 Q2 y multiple pairs of simultaneous operations without cross talk.
( d0 x) w6 R" i" c4 l; e' X; N' C 此主题相关图片
2 p) `( M8 J0 H5 B, `: q2 d
- J- p: F* F+ l" F# B <
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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

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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
* p l& H1 B; ~# Q: X3 l7 L% C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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