Saturday, January 16, 2010

Wireless Security Camera Installation Images

Below are some images taken from an installation that one of CCTV Camera Pros' installation partners completed in Boca Raton, Florida in Palm Beach County. The installation was for a home owners association and there was a challenge of installing two cameras on two poles about 900 feet from where the digital video recorder was housed (at the clubhouse). The solution was to use four F731E Outdoor IP cameras and two wireless security camera systems along with weatherproof mounting hardware and outdoor enclosures to contain the POE power supplies and network switches for the two cameras.

Wireless Camera System Boca Raton Florida Wireless Camera System Boca Raton Wireless Security Camera
Please click on the above images for larger views

Wireless Security Camera Systems

The systems allow CCTV installers to enable wireless capability to all traditional CCTV cameras with the addition of a security camera video encoder and video decoder. The video encoder/decoder pair also allow you to control PTZ dome cameras using RS-485 protocol. If you intend on using IP security cameras, then you do not need to use a video encoder and decoder because the IP transmission of IP cameras works naively with the WIFI-EN96510 and WIFI-NAN72B wireless security camera systems. The main purpose of these systems is to provide a cost effective solution for remote and hard-to-reach camera locations where dredging and cable laying is not practical or is too expensive.

The WIFI-EN96510 and WIFI-NAN72B use the latest digital wireless OFDM modulation in the less crowded 5GHz radio band, providing transmission rates that significantly reduce signal interference. Because the system is full-duplex, it supplies a very stable wireless link. The system also uses image processing software to deliver hi-definition, full-motion, ripple free video up to 3 miles (WIFI-NAN72) or 1 mile (WIFI-EN96510) with direct line-of-sight. The WIFI-NAN72 and WIFI-EN96510 also offers considerably improved data security via either AES or RC4 key encryption.

This wireless camera system has been designed for ease-of-use and flexibility. System set-up and configuration are quick and easy tasks by using the built in user interface which allows you to easily configure your access point and bridge pairs. . If transmission of over 4 miles is required or the signal path needs to change direction, two or more WIFI-EN96510 and WIFI-NAN72B can be connected in series using the repeater mode.

Overall, this wireless camera system from CCTV Camera pros provides a versatile, all-in-one wireless transmission solution for IP cameras and CCTV cameras. It offers the best performance in all environments and weather conditions, and provides integrators and installers with a system that is easy to set-up, simple to install operate.

Wireless Security Camera Diagram

The above diagram illustrates one possible solution using CCTV Camera Pros wireless system. This displays a simple example of how an installer can deploy a surveillance system across multiple buildings that are not wired together or even on the same IP network. Each building can have no existing network also.

In this example, building A contains two CCTV cameras (analog cameras) that are wired directly to the hybrid NVR / DVR using RG59 coax cable or premade plug and play CCTV cables. The NVR is connected to the network of building A by connecting to the router via cat-5 cable. To the right of the router is a cable or DSL modem which will allow Internet access to the entire system if desired. To the left of the router in building A, and mounted on the outside wall is the wireless system receiver. The wireless receiver is connected wirelessly to the wireless transmitter on building B which is directly across from it with a direct line of sight for communication (direct line of sight is required between antennas. Building B's wireless transmitter is connected to a network switch in building B (not a router) via CAT-5 cable. The network switch is connected to two network video servers via CAT5 cable. The network video servers are each connected to a CCTV camera using RG59 coax cable or a premade CCTV cables. The purpose of the network servers is to convert the analog video signal of the camera, make it digital, and transmit it using TCP/IP to the network via the network switch and in turn the wireless camera transmitter.

In summary, the wireless camera system's transmitter and receiver create a wireless network. The router in building A assigns IP addresses to all of the devices in building B and in turn make building B's IP devices part of building A's network. The hybrid DVR / NVR in building A is capable of connecting both to wired CCTV cameras as well as IP cameras and IP video servers bringing all of the cameras in both buildings together into a single surveillance system. With high speed internet access in place in building A and port forwarding / firewall settings setup properly, users can access all of the cameras from both buildings remotely over the Internet by connecting to the NVR / DVR's web camera service.

Below is another illustration of how a wireless security camera system can be setup and installed.

If you have questions about this wireless system, please contact CCTV Camera Pros by email or telephone.

Wireless Camera System Installation

The below installation diagrams should be used to help you plan your wireless system installation carefully for the best results possible.

Wireless System Installation
The above installation image illustrates that it is important to mount your wireless transmitter & receiver on poles to raise them above any obstructions. Besides raising them, it is equally important to make sure that there is a direct line of sight between them.

Wireless Camera Installation
When positioning your wireless transmitter and/or receiver units on roof-tops, provide a clear line-of-sight and avoid the possibility of signal multi-pathing by raising them on poles or locating them on the edge of the roofs.

Wireless Camera Install
The ground plane can cause multi-path issues and can significantly affect the range of your wireless transmission.

Source :

Sunday, January 3, 2010

1,000 cameras 'solve one crime'

CCTV camera in the Embankment, central London
London is one of the world's most monitored cities

Only one crime was solved by each 1,000 CCTV cameras in London last year, a report into the city's surveillance network has claimed.

The internal police report found the million-plus cameras in London rarely help catch criminals.

In one month CCTV helped capture just eight out of 269 suspected robbers.

David Davis MP, the former shadow home secretary, said: "It should provoke a long overdue rethink on where the crime prevention budget is being spent."

The Metropolitan Police has been extraordinarily slow to act to deal with the ineffectiveness of CCTV
David Davis MP

He added: "CCTV leads to massive expense and minimum effectiveness.

"It creates a huge intrusion on privacy, yet provides little or no improvement in security.

"The Metropolitan Police has been extraordinarily slow to act to deal with the ineffectiveness of CCTV."

Nationwide, the government has spent £500m on CCTV cameras.

But Det Sup Michael Michael McNally, who commissioned the report, conceded more needed to be done to make the most of the investment.

He said: "CCTV, we recognise, is a really important part of investigation and prevention of crime, so how we retrieve that from the individual CCTV pods is really quite important.

"There are some concerns, and that's why we have a number of projects on-going at the moment."

Among those projects is a pilot scheme by the Met to improve the way CCTV images are used.

A spokesman for the Met said: "We estimate more than 70% of murder investigations have been solved with the help of CCTV retrievals and most serious crime investigations have a CCTV investigation strategy."

Officers from 11 boroughs have formed a new unit which collects and labels footage centrally before distributing them across the force and media.

It has led to more than 1,000 identifications out of 5,260 images processed so far.

A Home Office spokeswoman said CCTVs "help communities feel safer".