Posts Tagged ‘video security’
Which CCTV Cameras Works Best
Closed Circuit Television also known as CCTV is primarily used in security systems. It’s different from broadcast because the signal is not openly transmitted, its usually point-to-point links. Video cameras, whether digital or analog, transmit a signal that can be turned into video for a live feed or recorded for reviewing later. The footage would provide the police with evidence that would help solve the crime.
In factories and manufacturing facilities, cameras ensure regulations are being 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. It’s more efficient to have one security guard watching multiple cameras than it is to have mutliple guards watching multiple locations. When they noticed something awry, they would investigate and alert the authorities.
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 recordings are stored on a hard drive, although older and less expensive cameras record to videocassettes. 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. Currently many systems can zoom or pan but are still small enough to go unnoticed. The cameras are high-definition, and are connected to computers making it possible to track individuals or objects. Features like these are referred to as VCA (Video Content Analysis) and are very beneficial.
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.
It’s possible for hackers to exploit the weaknesses in some systems. Hackers can cross feeds or upload unrelated videos to replace your video. Moreover, cameras are susceptible to tampering. Trying to protect the camera from vandalism or being neutralized can make them less effective. Laser pointers have reportedly been 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. These small limitations do not effect how valuable a hidden security camera can be. Choosing the correct camera can eliminate most of these types of concerns. Certain cameras are designed for outdoor use only while others are made only for indoor. They can be mounted in a number of different ways in which they can recede into its surroundings and go unnoticed which will prevent any sort of tampering. 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.