What Is CCTV ?
CCTV, known as Closed Circuit Television, refers to a device utilized for monitoring various locations, including personal properties, homes, hotels, hospitals, commercial and residential areas, offices, roads, malls, colleges, and other sensitive areas. It serves the purpose of overseeing activities in the absence of humans. In the contemporary world, cctv camera is recognized as security surveillance and has evolved into a crucial component of security measures.
When CCTV Was Invented ?
During World War 2, Germany was the pioneer in deploying cctv cameras to monitor the frequent arrivals of V-2 Rockets amidst wartime conditions. Subsequently, this technology transitioned into the commercial sphere, where individuals began adopting it to address their personal security needs.
Who Invented CCTV ?
Walter Bruch was the innovator behind the invention of CCTV technology, which was initially used by the German forces for the first time. As people began to realize the advantages of cctv cameras, the technology was introduced to the commercial market to enable everyone to benefit from it. The cctv market subsequently experienced a rapid expansion, leading to its widespread installation. Presently, cctv cameras can be found in various locations. Notably, China has emerged as the world’s foremost manufacturer of cctv’s technology in today’s time.
Types Of Cctv’s Camera –
- HD Camera
- IP Camera
- Wifi Camera
- PTZ Camera
- Verifocal Camera
- Spy & Hidden Camera
HD Camera – High-definition cameras offer a range of options, including 1MP, 2MP, 3MP, and 5MP variations. Beyond the 5MP threshold, there exists a selection of other cctv cameras (Hyperlink) with higher pixel counts, often customized for specific orders or unique requirements. These HD cameras are compatible exclusively with DVR (Digital Video Recording) systems, employing 3.1 and 4.1 copper cable wiring. Widely employed in small offices, homes, hotels, shops, and residential settings, HD cameras are integral for enhanced surveillance.
IP Camera – The Internet Protocol Camera, a contemporary advancement in CCTV technology introduced several years ago, has emerged as the predominant preference for both commercial and residential settings. IP cameras operate through Cat 6 cables and, in contrast to traditional DVR systems, rely on NVR (Network Video Recording) technology. These IP cameras are predominantly favored by significant establishments such as large hotels, hospitals, jewelry shops, banks, ATMs, and event venues.
Wifi Camera – WiFi cameras have become essential for individuals seeking to monitor their homes or activities in their absence. Operating without the need for wiring, these cameras feature a completely wireless setup comes with a power adapter only. Wifi camera requires memory card to store daily footage, although the option of cloud storage is also available. It’s important to note that using Google Cloud incurs charges, and the need to renew the yearly subscription is not always recommended. WiFi cameras are largely use in residences, offices, by working professional women, and in situations where basic requirements are sufficient.
PTZ Camera – PTZ, an abbreviation for Pan Tilt Zoom, pertains to cameras specially crafted for extended-range surveillance. These cameras operate exclusively with NVR systems using Cat 6 cables. They offer a remarkable 360-degree horizontal rotation and a 90-degree vertical and horizontal tilt, effectively eliminating blind spots and ensuring comprehensive coverage. Primarily employed in construction sites, highways, airports, railways, and large industrial facilities, PTZ cameras carry a substantial cost, but their exceptional quality sets them apart from other CCTV camera options.
Verifocal Camera – Varifocal cameras utilize adjustable focal lengths to enable flexible zoom capabilities. Unlike fixed focal length cameras, which have a constant field of view, varifocal cameras allow users to manually adjust the zoom level and focus according to their surveillance needs. This adaptability makes them suitable for scenarios where the required field of view may change over time, such as monitoring areas of varying distances or dimensions. Varifocal cameras offer the advantage of versatility, providing the ability to optimize the camera’s view for different situations without physically moving the camera itself.
Spy & Hidden Camera – Hidden cameras can provide crucial evidence in legal matters, such as theft, harassment, or property damage, as they capture real-time footage without the subject’s awareness. While there are benefits to hidden cameras, there are also ethical considerations regarding privacy rights. It’s important to use these cameras responsibly and in compliance with local laws and regulations. Hidden cameras come in various forms, such as everyday objects (e.g., clocks, pens, smoke detectors) or specialized devices, making it easier to integrate them into different environments seamlessly.