How do i install a wireless video surveillance system?
June 28, 2009 by Surveillance Tips and Advice
Filed under More Surveillance Answers
I’m doing a project on safety for my campus. If i wanted to install a camera at the entrance of a building, have it feed into a monitor in one of the rooms in the building and I wanted to send a live feed of the surveillance to another building less than a mile away, what equipment would I need? Thanks!
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Cctv Cameras is not Crime Prevention, But Crime Detection and Prosecution
June 25, 2009 by Surveillance Tips and Advice
Filed under GPS Tracking, CCTV, DVR & Private Investigation
Most modern CCTV security cameras are simple, light-weight and inexpensive enough to be used in home security systems. There are new and advanced CCTV mega-pixel cameras available which can take 1600 x 1200 pixel resolution images of the camera scene either on a time lapse or motion detection basis. These cameras also use a variety of techniques such as Tilt-Zoom, Low Light, Infrared No-Light and License Plate technologies.
Major industrial concerns now make use of CCTV surveillance cameras to observe the functioning of the factory from a remote camera room. These types of cameras are very common in industries that deal with dangerous material like chemicals and nuclear fuel. By set up a thermo graphic camera it is even possible to measure the temperature of the processes going on in the factory by the person who observes the process.
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CCTV security cameras are beginning to transition to digital. With high shutter speeds, memory capacity and pixel resolution, photos can be taken either when alerted by a motion detector or on a continuous basis. Boasting an easy setup and storage of images on the computer, it is proving quite popular.
CCTV surveillance cameras is also established in varied blocks or areas in industries, offices and other commercial areas to supervise the employees and outsiders. These CCTV camera security systems are sizeable in door as well as outdoor uses. They are built in smoke alarms, radios, clocks, etc as they are a matter of evidence of anything recorded. Manufacturers offer different types of cameras like fixed camera, bullet camera, dome camera, infrared camera, wireless security camera, spy camera and more.
The most common usage of CCTV cameras is not crime prevention, but crime detection and prosecution. Several cases have been solved with the use of these cameras. These cameras automatically transfer captured images on a time-lapse or motion detection basis to a PC or laptop using either a USB cable or a wireless adapter.
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Thanks to Rajiv Patel for contributing this article to our Surveillance blog:
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Security Cameras, Surveillance Systems - Los Angeles, San Diego, Orange County
June 2, 2009 by Surveillance Tips and Advice
Filed under About Surveillance
At first, video surveillance was all done with analog technologies like CCTV (closed circuit TV), the video being stored on tape. While perfectly adequate for monitoring and recording activity, no broadcast capabilities were present. This made the technology less than ideal for remote surveillance. And of course, tapes involved an inherent time lag. Worse of all, tapes had to be changed on a regular basis, and the quality of captured video tended to be rather poor.
Digital revolutionizes video surveillance
With the advent of the Internet, and increasing prevalence of LANs (Local Area Networks), there was a parallel leap in surveillance technology in the nineties. Analog cameras began to be phased out in favor of digital cameras, the prices of which dropped to within the realm of feasibility for the average person.
With these advances, video surveillance could now be sent out live over the Internet or a local area network. The new digital cameras offered much higher quality, clearer images, which were also far easier to work with. This was a boon to law enforcement in particular.
The basics of IP-based surveillance
In a nutshell, the digital camera “sees” what it is pointed at, and sends the video data over a local area network to a workstation or server. The server or workstation then handles the data. As needed, the data is displayed, recorder or retransmitted to other computers and networks.
There is software available for data analysis, flagging and almost any other data management function you could want. Video surveillance is a more versatile tool than ever thanks to these accompanying advances in software.
Truly IP-based digital surveillance utilizes CCD (digital to you and me) cameras that break up the video data into packets and stream it over the local area network via an Ethernet (Cat 5) cable instead of a coaxial cable. This allows more bandwidth and true TCP/IP capabilities to be dedicated to the video signal.
IP-based surveillance allows better data mining and retrieval, as well as encryption capabilities for your data in the event you need to keep it away from prying eyes and tampering. This is something which analog based surveillance simply cannot offer.
A new development is digital cameras that have built in web servers, meaning no networked computers are required to run the cameras, the video data is sent to the end location for viewing or recording to be played back later. D-Link and Linksys already have offerings on the market already, with many more to follow.
Halfway there
In between the digital and analog worlds is adding a DVR, or digital video recorder to an existing surveillance system. While not IP-based, a DVR system is a step towards such a system. Now, a DVR system may have the same camera and other older analog technologies in place, but stores video on DVR rather than tape. Unfortunately, the poor video quality of the old analog based systems still is a problem here.
If you’re looking at surveillance systems, always ask if digital refers to the recording medium or the cameras. Many companies will call a system digital based on the DVR storage alone, while still using analog cameras.
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perior to analog
IP-base recording is highly compressed for easier storage and can be transported over a variety of media
Digital images can be encrypted for security purposes
Updates and add-ons are relatively inexpensive through software packages and Internet computer networking
Adjustable frame rates
Remote or shared viewing may be done over the Internet or a wireless connection
Standard IP video compression techniques are used
IP surveillance cameras may be added individually or in groups according to your needs
If you plan to increase or upgrade video surveillance for your company or home, having a handle on how IP-based video surveillance works will make your decision easier. Video surveillance is headed in this direction; although in the short term it may be a little bit pricier, is an investment in superior quality and flexibility over the long run.
Thanks to Mark Allen for contributing this article to our Surveillance blog:
Mark Allen is a frequent contributor on the security surveillance camera industry.
What are Video Surveillance Cameras?
May 21, 2009 by Surveillance Tips and Advice
Filed under About Surveillance
Because of the need for security video surveillance cameras are fast becoming popular not only in the United States but around the globe as well. They may be expensive but for most people it is worth all the cost and effort in installing them as they defer the cost of losing something, cost of extra security and effectively reducing crime rates. Today, video surveillance cameras are now available and affordable to any average citizen who wishes to protect themselves, their love ones, their homes and property.
There is a wide variety of surveillance cameras available to everyone. There are hidden or spy cameras which can be hidden in everyday household objects so that people do not know they are being watched and can be caught red handed in video recordings. Then there are wireless video surveillance cameras which can easily be installed by anyone without any professional help; these video surveillance cameras can also be relocated easily. Then for permanent installation there are wired surveillance cameras; however these may need professionals to install.
Mainly surveillance cameras are used for protection. The main problem however is that there is those who disapprove of the use of these cameras especially in public placed due to privacy issues. It is an ongoing debate wherein naysayers don’t want video surveillance cameras everywhere they go because it violates their freedom or the fourth amendment in the United States which prohibits unreasonable searches. Plus they argue that instead of preventing crime video surveillance cameras simply relocate crime.
Those who approve of the use of video surveillance cameras on the other hand argues that these are important when it comes to finding suspects, locating accidents and being able to respond faster to emergencies. Especially after the terrible terrorist attacks in September 11, 2001 which proved that with proper video surveillance cameras around response to such tragedies could be faster. They also argue the fact that a closed circuit television surveillance camera was able to capture the image of the suspects of the London Underground bombings which was a big step in the investigation.
These video surveillance cameras are intended to help secure and ensure the public safety. Basically they are there for protection against any misconduct and a tool for emergencies.
Thanks to Brooke Coin for contributing this article to our Surveillance blog:
What Everybody Ought to Know about Home Surveillance Cameras : The tips, the benefits all the “how to” guides.
What is the best video surveillance system for a small home?
May 19, 2009 by Surveillance Tips and Advice
Filed under More Surveillance Answers
I need to know the best home video surveillance system at a decent price. Mine and my fiance’s cars were both broken into last night so I’m looking to get a video surveillance system I can monitor the house with … Any suggestions?
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