Video Surveillance Camera Technology
Video surveillance cameras are more prevalent today than anytime in the past. Their use has surged along with the boom in technology as this new technology becomes cheaper and more sophisticated. There are numerous types and styles of surveillance cameras. For example, there dome cameras, hidden cameras, smoke detecting cameras, and “smart” cameras that are equipped with motion detectors, just to name a few.
Video surveillance cameras are classified according to the technology that is used in their design. CCTV [closed circuit TV] cameras are those that have a completely closed circuit and all the components are connected together. On the other hand, advanced digital cameras are those that connected by a circuit but can be located at any site around the world. Digital video recorders [DVRs] do not need VCR’s and other recording equipment in order to capture or record on-site activities. The software is designed to automatically record unusual activity even in odd hours of the day.
You can find video surveillance cameras used in many different places. They are used in school buses and schools to monitor activities of students. You will also find them being used in retail establishments, public gathering places, traffic reporting, and many more places. Small hidden cameras know as nanny cams have been used successfully by parents concerned about their children’s care from sitters and caretakers. Hidden cameras are also available for sale in “brick and mortar “stores and on the Internet. You find these cameras hidden in clocks, smoke detectors, and soft toys such as a teddy bear, just to name a few.
This style of camera is differentiated according to its effectiveness. A 360-degree revolving dome camera can capture images anywhere on the site. Infrared surveillance type cameras are found used by government and law enforcement agencies such as the SWAT for tailing suspects at night. They too are found mounted in police helicopters to aid them in searching suspects hidden in brush by either day or night.
Detective agencies and security agencies use these cameras to monitor people at their client’s request. It is currently lawful in most areas to install a camera in a common public area and record public activities; however, there is a lot of debate over this subject. Even government agencies such as the Federal Bureau of Investigation [FBI] need a warrant in order to carry out video surveillance in private places or homes. Small hand held cameras, also available in the marketplace, help monitor the elderly and in nurseries and preschools where children are kept under watch.
Video surveillance cameras are available in the price range of $100 to $800 for the most part. However, it depends on the complexity of the technology used in them. Well-made fake cameras are also available for as less as $3, which act as deterrents for robbers and thieves but are not recommended in some applications.
Is video surveillance camera technology stable?
December 2nd, 2008 at 3:48 pmStrange question but I want to buy a video camera detector. Even stranger huh… I found out about these devices recently. It is a device that detects wireless video cameras that are monitoring you like in elevators, gas stations, banks and (I want to find out where else). These detectors have a video display [cool] and actually show you the vision of the surveillance cameras so you can find out where they are mounted. The trouble is, these detectors cost about 500 bucks so if the frequency range of the wireless monitors changes the detector will be obsolete and worthless. NOTE> This is not going to be used for terrorist activity so don't go thinking you will be a hero to report me to the feds. You may wonder why i would want such a toy but i am just extremely curious who is watching me and then i might wonder why. I remember speaking freely at gas station pumps and the cashier would be listening in on the conversation which i do think is totally illegal to do if not related to gas.
It would not be worth buying the equipment you are talking about at the price mentioned.
1) Most important institutions such as banks, gas stations etc.. do not use wireless cameras because of the costs, reliability & security problems. Where wireless cameras are used at important locations, these video signals are most likely encrypted, therefore a viewer would not work.
2) Most wireless cameras available to consumer market operate in the 1.3 or 2.4Ghz frequency range. In general, there are only four channels available. So if you buy a cheap wireless receiver for a wireless camera with switchable 4 channels, then you would be able to receive the wireless signal from most general wireless cameras. And this should cost you less than $80 for the whole kit including a camera.
3) Dont forget that newer IP cameras can be wireless which are used in important places, but the video from these cameras can only be seen on a PC within the network that the camera is connected to.
4) IF you really want to be able to connect to any wireless audio or video device and it means that much to you, then try the expensive device but I dont think it will deliver what you expect .
December 2nd, 2008 at 8:50 pmReferences :
The CCTV Experts http://www.securicorp.org