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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
0 V) P; p4 U. B; e9 f# j- Z2。 让甲方把所有的要求提出来再设计方案。
2 C* v' n+ m4 }: w$ x$ U3。 不能让甲方随心所欲的改方案。
" u! w% F* W" Y; B, h3 h/ ]1 s4。 我们可以提供2.5M 的realtime数字图像,他有那么多的钱吗?
% Y9 Q( z3 f) a. A# z. ? f 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。
' ?4 j& q! l0 w# f
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
- l! m8 X# E8 c8 Y/ \如果设备数量再多的话感觉做起来比较麻烦。
7 \8 [7 d1 g/ R% `! Z 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
- ~* c9 f q/ R% t2 s5 h0 a K+ 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:
( q6 o4 v- c3 N" A q
" @3 g: n0 \, G# h; ? 1. Key Features
* n3 p h8 X' r0 ] 1) Complete transceiver design of wireless communication at 5 GHz.
2 Y% C: y4 Z$ }4 k3 [- _2) Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
; L2 J0 f. G6 s: w( g/ B different country spectrum requirements.
! m" Y j2 m f3) Dynamic frequency selection to resist interferences.
' a J1 h# W7 D. z4) Close-loop power control to minimize power consumption and be a friendly neighbor to
& _) [8 b0 y5 r+ J) u/ x other WLAN networks at 5 GHz.
9 b D$ J( j6 Y$ P& I 5) Secure networking to assure privacy and content rights protection.
; l* c' ?+ `% }& F5 L( G( y( t6) Supports most of the digital video formats at TS layer including MPEG-2, MPEG-4,
, G8 [" L% w" J# E! jH.264 and VC-1 (WM-9).
U; ?$ e/ E( R" f$ E. ~; \# z1 n" k 7) Supports point-to-point video connection with full QoS and point-to-multipoint video
( }2 q: u! h% H5 P2 T0 W5 [" c( Hbroadcasting.
; j% }2 P/ B/ y: n) i 8) Configurable expansion I/O connector enabling easy integration with existing host
. g7 |- I( D x9 J4 N# Y: q. q systems.
3 J. o, m( q% S) y! s9) HCI interface to the host CPU to enable flexible application development at the host level.
' Q% B0 A/ |5 o3 `9 G. ~7 s8 ?! s1 A' s+ t# H 10) Transmission of IR control signals to the video source devices from the TV location.
, M( R; E; M- A" H 2. System Diagram
: ] r# d% z1 X7 NWAV3000 wireless module creates a proprietary 5 GHz wireless network for MPEG
8 c: ~8 K9 u$ p( I- Z transport stream (TS) communication. The WAV3000 is a complete wireless transceiver module
" E( S. |# B. w that can be integrated as video sender and video receiver according to the host platform. When
2 H3 m' P; d8 T% Y& M9 Z* `2 R used as video sender, WAV3000 can be embedded in a video source device (DVD, VCR, PVR,
8 a% c' \0 j. N: \! h# WSTB, or PC); and when used as video receiver, WAV3000 can be embedded in a video display
Z1 I, {* W" a2 A( G, T6 Zdevice (TV, flat panel or video monitors). So a pair of the WAV3000 provides a complete,
, W$ d& S, H, W& `glueless wireless connection from TS (of video source) to TS (of video display) with guaranteed
/ h6 w+ ^$ {5 N* iQoS.
/ F1 v( j4 Y; f# U* a( I The WAV3000 includes a configurable expansion connector (CEC). All I/O signals can be
" J9 N: m3 g& l5 D4 X: e3 ?5 crouted and configured through the CEC enabling easy integration with existing host systems.
3 ?; i5 ?, e1 s, j/ o, u! k4 l/ B- Q Figure 1 gives a functional block diagram of the WAV3000 and associated personality
& f1 Z! `' b1 R9 p9 D0 y$ ~ module (PM). The personality module intends to simulate the host product platform in which the
1 J4 y9 I& b; N7 w4 tWAV3000 will be integrated. The PM supports demo and evaluation of the WAV3000 with a
; k, x) z- X/ w5 J9 C5 D variety of video sources (analog and digital) for different applications. It also provides
2 n4 ~( z3 N/ P/ g2 y capabilities for test and debugging of the core module.
- x5 `8 ?: a6 O2 J$ J; ]' e3 Functional Specifications
The WAV3000 supports standard MPEG Transport Stream input and output in either
1 W7 U& b: |0 i% w# @' R: dParallel or Serial mode.
The Tx unit transmits the compressed MPEG TS signal to the Rx unit over the air, using the
1 J* a) U/ t: f* C+ k: T% V [WiViTM wireless networking technology at 5 GHz.
Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
: `3 o. I, f9 S2 f, _ 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
c2 r& @. g' P6 B8 O1 Z: Xpower 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
+ ?9 u1 [ E3 j Mbps.
' [' {- f; D: T9 Y0 o4 System Security
# d* I5 i. z8 E a* R8 g8 I The communication is authenticated and the media stream is encrypted to assure for
* h/ _; F2 m; U* Q" A5 y `1 A protection of copyrighted material. Flexible pairing procedure between each Tx Unit and Rx Unit
^: C8 y; Q5 J, G2 S8 aensures private communications between each pair of units. This also allow for coexistence of
9 G' R8 a/ E- m# m5 i. q multiple pairs of simultaneous operations without cross talk.
; [9 }- |! {; s9 O/ W( a. X& |; S 此主题相关图片
4 {$ `6 s3 x# _3 U5 \
# f- s/ B1 O* W* t/ M7 P <
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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
; C3 O" N1 {- R可以联系我啊QQ358537237
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安防大学生

Rank: 3Rank: 3

积分
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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