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
) \+ w, }% G5 h Q# T0 `2。 让甲方把所有的要求提出来再设计方案。
' G2 ] d+ _7 k" F2 }+ q% a3。 不能让甲方随心所欲的改方案。
j2 H& g4 Z3 W A, }9 d 4。 我们可以提供2.5M 的realtime数字图像,他有那么多的钱吗?
+ Y2 w- t" a) V$ O& 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。
2 d' B* Z% J& W* X3 M( {
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
& t) h2 b3 l* w, P如果设备数量再多的话感觉做起来比较麻烦。
8 A$ ~6 f+ ?6 a. e/ j. b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
% i2 Q* Q) O* Z) M) N
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:
4 p$ f/ O* i4 i, |: F: t3 F# Y
* ?' `* A/ w5 @, [ 1. Key Features
: v Y4 L' G# L! t x' r+ h 1) Complete transceiver design of wireless communication at 5 GHz.
: h* O! t$ F1 }3 Q( I" D/ T2) Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
) t! k: y9 J* j) [ different country spectrum requirements.
e. E P! Y8 I/ d 3) Dynamic frequency selection to resist interferences.
9 \ g* o/ O5 J' R* | 4) Close-loop power control to minimize power consumption and be a friendly neighbor to
" e' H2 o/ @$ p' p' L8 s- e other WLAN networks at 5 GHz.
& n7 l& @/ ~( T; y v) V: K: D/ \ 5) Secure networking to assure privacy and content rights protection.
E# b# e1 H; M/ n6 m& Y, o 6) Supports most of the digital video formats at TS layer including MPEG-2, MPEG-4,
3 S! ?) i1 l& E' t7 B( k" A H.264 and VC-1 (WM-9).
, ]+ a% {& ?0 ?, S& {7) Supports point-to-point video connection with full QoS and point-to-multipoint video
/ J; P2 y* M" K. Z) v- @broadcasting.
1 y5 B" Z1 S' N1 E* p i7 R 8) Configurable expansion I/O connector enabling easy integration with existing host
/ ?$ @. l2 ^# ]* g2 | systems.
5 H: A9 F K' n+ |% J& y 9) HCI interface to the host CPU to enable flexible application development at the host level.
7 u* N# P0 {- h& o2 ] 10) Transmission of IR control signals to the video source devices from the TV location.
" M S( O ~- R; S( ^8 F2. System Diagram
8 h% T# I% M6 ? W% R) l) \! EWAV3000 wireless module creates a proprietary 5 GHz wireless network for MPEG
1 o, i5 ~1 l$ u( |1 d3 X0 \, otransport stream (TS) communication. The WAV3000 is a complete wireless transceiver module
2 _/ a {. ^& E! W( {( `6 h% i$ |that can be integrated as video sender and video receiver according to the host platform. When
$ w: Y6 [( v. i! Qused as video sender, WAV3000 can be embedded in a video source device (DVD, VCR, PVR,
* L# d* r/ t: V8 ]2 aSTB, or PC); and when used as video receiver, WAV3000 can be embedded in a video display
$ c( _) _' F7 k5 s. s3 H7 a3 r device (TV, flat panel or video monitors). So a pair of the WAV3000 provides a complete,
9 ]5 A8 ?5 U/ k$ o o7 l. n; J glueless wireless connection from TS (of video source) to TS (of video display) with guaranteed
- `4 z; v/ p2 XQoS.
/ W- `% @+ a ~1 u! X h+ Q- fThe WAV3000 includes a configurable expansion connector (CEC). All I/O signals can be
# g$ P2 Z0 g% h2 u* |routed and configured through the CEC enabling easy integration with existing host systems.
" D3 k% k# T. d7 s# jFigure 1 gives a functional block diagram of the WAV3000 and associated personality
7 Q) Q# k, ?9 M, C! v3 a" rmodule (PM). The personality module intends to simulate the host product platform in which the
% w1 V6 |. B) o- y6 ^! N: SWAV3000 will be integrated. The PM supports demo and evaluation of the WAV3000 with a
# V+ h) z, z' N% [6 _variety of video sources (analog and digital) for different applications. It also provides
9 R2 o' b$ J- Y: q, Wcapabilities for test and debugging of the core module.
7 @$ P) T2 J/ c" x3 {1 i3 Functional Specifications
The WAV3000 supports standard MPEG Transport Stream input and output in either
% K( s( i5 Q2 D, x! y: X2 ] Parallel or Serial mode.
The Tx unit transmits the compressed MPEG TS signal to the Rx unit over the air, using the
1 ~7 C. f2 R% C1 Y% R WiViTM wireless networking technology at 5 GHz.
Supports 4.9 to 5.9 GHz frequency band and is controlled by software to comply with
% T# p7 v7 V7 m; o' Udifferent 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
- S. @0 Z+ l, L 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
5 Z7 J/ S& f) WMbps.
; `$ S& I2 ]0 p4 x4 System Security
% n8 E! B1 L& O9 b) G3 F) w; KThe communication is authenticated and the media stream is encrypted to assure for
' w8 G. h1 j, i# J# s4 K& y9 X$ g8 i protection of copyrighted material. Flexible pairing procedure between each Tx Unit and Rx Unit
4 C, R5 ~2 h1 E5 |' _0 ? nensures private communications between each pair of units. This also allow for coexistence of
: n* n" \; o! \% pmultiple pairs of simultaneous operations without cross talk.
/ v9 t. E. }2 ?& V; `4 V此主题相关图片
/ V1 ~5 ?9 j$ L1 t5 o- E
) M. T; j/ w0 M4 f- h9 _, Q4 r <
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
9 f( T" V) D6 \: k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, 2026-1-19 11:19 , Processed in 0.319381 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