Closed Circuit Television also known as CCTV is primarily used in security systems. It varies from broadcast in that the signal is not openly transmitted; there are usually point-to-point links. Video cameras, which can be either digital or analog, transmit a signal to a designated portal and the owner of the system can watch the video feed in real time, or review it after a crime has already occurred. Video footage of the event would provide evidence that the police can use to catch the criminal.
In factories and manufacturing facilities, cameras are used to insure governmental regulations and procedures are followed. This provides evidence that all regulations are being met and strictly adhered to. And the events leading up to accidents that result in Workman’s Compensation claims or Personal Injury lawsuits are recorded protecting companies from fraud
CCTV cameras are most frequently used for surveillance in places like banks, airports, banks, stores, and even casinos. Hidden cameras are also utilized by homeowners in their security systems. CCTV makes it possible to monitor multiple locations from a central control room. Instead of several security guards being stationed in multiple locations, ideally one security guard could survey a bank of monitors receiving a feed from several hidden security cameras. When they noticed something gone wrong, they would take a look and then call the police.
In the case of a crime that has already occurred, footage from a CCTV camera would be reviewed. Frequently cameras have recorded crimes like kidnappings, unrelated to the business that installed them, and provided leads for investigators. Most CCTV record to a file on a hard drive, but older, cheapers cameras still use VHS. Storage is a concern, and how long the footage should be kept before being erased is up to the owner of the system. Whether the security system records to video cassettes or directly to a hard drive, the footage is held for a predetermined length of time before being erased, ideally not without determining the camera didn’t record anything valuable.
With the emerging use of digital video recorders, the hidden camera CCTV systems are advancing to motion detection and email alerts. There are currently many systems that can zoom and pan but are still relatively compact. The cameras are high-definition, and are connected to computers making it possible to track individuals or objects. Features like these are refereed to as VCA or Video Content Analysis.
As CCTV becomes more prevalant, the question of privacy versus public security is going to be debated more and more. In many metropolitan areas cameras are at such a high concentration that a person can’t walk an entire city block without being filmed.
Some systems have weaknesses that hackers can exploit. The hackers cross feeds or upload unrelated videos. Moreover, cameras are susceptible to tampering. Trying to protect the camera from vandalism or being neutralized can make them less effective. There are reports of laser pointers being used to temporarily blind a camera. Also broadcasting another wireless signal at the exact same frequency can jam the camera. On the other hand, all of these problems can easily be avoided by careful placement and plenty of manufacturers have features to protect against vandals. Small limitations like these don’t affect how valuable a hidden secuirty camera can be. Choosing the right camera can eliminate most of these concerns. Certain cameras are designed for outdoor use only while others are made only for indoor. They have a variety of ways of being mounted and have external appearances that make them recede in the surroundings and go unnoticed, and therefore not tampered with. A well-designed hidden security camera is difficult and time intensive to neutralize and is left alone and allowed to record the crime.
A security system that utilizes a hidden camera with CCTV is a valuable tool in protecting things as well as people.
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