中国安防论坛

 找回密码
 注册
楼主: tension09860

精通无线监控技术的朋友请进。。。。

[复制链接]

安防幼儿园学生

Rank: 1

积分
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
回复

使用道具 举报

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
3 j4 H7 r8 N/ l( G: ^' E! t6 e) m6 ?. e2。 让甲方把所有的要求提出来再设计方案。
9 G$ w7 e7 o4 l' h7 X3。 不能让甲方随心所欲的改方案。
! y/ J- r- z4 o" L* z* Y 4。 我们可以提供2.5M 的realtime数字图像,他有那么多的钱吗?
- m: L! `5 P. S( {1 V 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。
9 B6 ?) u/ ?6 e" Y) }* ] L
夜视设备,特种设备
www.nvoe.com
回复

使用道具 举报

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
' b: h" w& a& }( R7 V% c! H" H1 y 如果设备数量再多的话感觉做起来比较麻烦。
% m: F W% S* W3 d2 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。
回复

使用道具 举报

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
) Z# e. k) d8 k
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
回复

使用道具 举报

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
回复

使用道具 举报

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:
3 N# H6 F) B( i! w# x: E
9 }. E& s) p* g, o, { |/ ?1. Key Features
; a( t9 G6 f& Q: Y! S1) Complete transceiver design of wireless communication at 5 GHz.
! D; N" \% l" A 2) Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
2 j8 y9 O' l3 U6 O2 u different country spectrum requirements.
7 N& C# Z5 L) j" k- c* W 3) Dynamic frequency selection to resist interferences.
, l/ s1 g1 W+ B$ g1 G 4) Close-loop power control to minimize power consumption and be a friendly neighbor to
" d4 a/ `( }3 D. s4 h1 l5 `# Q9 X* r other WLAN networks at 5 GHz.
0 ~) [) H: {8 v5) Secure networking to assure privacy and content rights protection.
# k, W4 X2 t( y: {( O- j# O3 q6) Supports most of the digital video formats at TS layer including MPEG-2, MPEG-4,
+ R4 O2 }2 X( t% [ H.264 and VC-1 (WM-9).
' J$ q1 b$ |/ `% A7 F2 m7) Supports point-to-point video connection with full QoS and point-to-multipoint video
5 \. o, e& G; V$ h/ e1 i7 `, bbroadcasting.
3 @' h3 [! y0 S, C3 Y8) Configurable expansion I/O connector enabling easy integration with existing host
9 n7 j: f! j( U& j5 g: |; y- @ |systems.
# h3 H, ?0 Y: @& V9 v5 Y! v; g9) HCI interface to the host CPU to enable flexible application development at the host level.
$ f# E) a# N5 B a, M9 ? 10) Transmission of IR control signals to the video source devices from the TV location.
* {. m- ?' a Q' @) R; R' ~% V2. System Diagram
$ X1 H* l4 u* z; l0 a WAV3000 wireless module creates a proprietary 5 GHz wireless network for MPEG
3 z" r7 }7 g& F transport stream (TS) communication. The WAV3000 is a complete wireless transceiver module
) a. g- ]/ h$ R& L# L- f: zthat can be integrated as video sender and video receiver according to the host platform. When
& W, K. ]) m. |& H3 u1 _# p used as video sender, WAV3000 can be embedded in a video source device (DVD, VCR, PVR,
, D+ t3 D0 h- ?6 CSTB, or PC); and when used as video receiver, WAV3000 can be embedded in a video display
& t3 v+ m3 ]6 B1 M7 i* k( q device (TV, flat panel or video monitors). So a pair of the WAV3000 provides a complete,
& `- Y2 s. W3 V- cglueless wireless connection from TS (of video source) to TS (of video display) with guaranteed
* Y* s1 j+ h& k9 w) _) |/ A QoS.
+ _# F% [- E; R, Y0 l& m$ u# |The WAV3000 includes a configurable expansion connector (CEC). All I/O signals can be
! ?! d: Y- P# Zrouted and configured through the CEC enabling easy integration with existing host systems.
7 ^2 T" z$ P: ^( D& ` U7 ~! p% |4 lFigure 1 gives a functional block diagram of the WAV3000 and associated personality
+ V. K3 C! y8 ~3 @5 s& x$ ^9 y/ @+ vmodule (PM). The personality module intends to simulate the host product platform in which the
1 `; J3 ]+ A- UWAV3000 will be integrated. The PM supports demo and evaluation of the WAV3000 with a
1 ~9 R! W5 f& i$ N) ~- i0 f# g+ j0 S9 ~variety of video sources (analog and digital) for different applications. It also provides
0 K0 Z+ R: U- U4 E+ ~capabilities for test and debugging of the core module.
9 J# A: `% z, R" F/ v& C7 t3 r 3 Functional Specifications
The WAV3000 supports standard MPEG Transport Stream input and output in either
, ?2 a; f1 E: V+ W Parallel or Serial mode.
The Tx unit transmits the compressed MPEG TS signal to the Rx unit over the air, using the
3 c3 {7 i& t1 t" g WiViTM wireless networking technology at 5 GHz.
Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
5 U; D0 [0 y/ O4 r 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
2 B+ h4 G/ s R 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
8 M3 Q% }+ d- @6 y Mbps.
, R [$ p% ~: v 4 System Security
$ m" D7 z q3 [+ d/ P# _The communication is authenticated and the media stream is encrypted to assure for
1 G5 B, a! X8 J. R protection of copyrighted material. Flexible pairing procedure between each Tx Unit and Rx Unit
! w; a4 V. Y: ?ensures private communications between each pair of units. This also allow for coexistence of
5 v3 y* i0 P1 K, ^ multiple pairs of simultaneous operations without cross talk.
. k; U0 D# z; z( M9 T此主题相关图片
7 a* y/ A& T' {& H0 U
$ `5 N7 r7 u; S. Q# R- T5 L <
回复

使用道具 举报

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/
回复

使用道具 举报

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
0 t1 J. L' M8 f 可以联系我啊QQ358537237
回复

使用道具 举报

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.
回复

使用道具 举报

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
回复

使用道具 举报

您需要登录后才可以回帖 登录 | 注册

本版积分规则

安豆网|Archiver|手机版|中国安防论坛 ( 粤ICP备09063021号 )

GMT+8, 2025-6-5 01:04 , Processed in 0.311991 second(s), 24 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表