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CCTV
A third eye !!!
Closed Circuit Television (CCTV)
CCTV is the usage of video cameras fixed in a strategic position to allow the transmission of live video feeds to a designated set of output monitors. Unlike the common television broadcasting signal aired to the public, CCTV uses point-to-point/ multi-point connection and is mostly used for surveillance systems in designated areas that may need extra security or continuous monitoring. In this guide, we will understand more about CCTV cameras and their uses in the current digital world.
Advantages and Disadvantages
Advantages
CCTV does enhance the current security system and offers safety which includes:
- 24/7 surveillance
- Access in remote places
- Acts as evidence in case of an incidence
- Deters criminal activities
- Monitoring of health hardards in work-place
Disadvantages
- In workplaces, the privacy of employees may be interfered with if they stay under CCTV Surveillance which may lead to a negative impact and productivity.
- Installation costs are prohibitive.
- Technical issues – CCTV devices are delicate and therefore can go off at any point in time.
CCTV Designs/Types of CCTV Cameras
Bullet Camera
This is a camera that has a cylindrical shape which is designed with an adjustable wall mounting. Bullet cameras have the strength to cover longer distances views. Besides, it has protective cases that keep off dust and other natural elements. This camera is best suited for outdoor installations and deters attempting onlookers.
Dome camera
This is one of the fashionable CCTV Cameras which easily blend with the place installed and its dome shape makes it hard to identify which side it facing. Therefore, its design offers deterrence features to onlookers. Also, they are easy to install and have IR features to assist in low light in both interior and exterior environments.
Turret Camera
A turret Camera is also known as a flat-faced dome camera due to a ball and socket in its design that offers rotation capabilities. This camera allows for more than one view direction with only one camera. Most of the time, turret surveillance cameras are powered by PoE (Power over Ethernet). However, this camera limits wireless camera connections.
IP Surveillance System
IP-based Cameras make it possible to achieve an IP Surveillance System that incorporates the use of digital cameras that receive feeds and transmit frames via an IP network. For it to work, it operates within a local area network (LAN). It is important to note that IP cameras are supported by a network video recorder (NVR) which has to be connected to the network.
Analog Surveillance System
This kind of surveillance system captures video feeds that are not digital and then transmits them to the Digital Video Recorder (DVR) or Video Management System through coaxial cables. The advantage of analog surveillance can transmit data over long distances however, it can only be accessed on-site interfaces.
Fixed Lens Camera, Varifocal Lens Camera, and PTZ Camera
Fixed Lens Camera
This camera normally comes with a pre-configured lens setting and only a few parts that can be moved during installation. Fixed lens cameras are more affordable for small business enterprises offer general protection and are used with readily available applications.
Varifocal Lens Camera
This kind of camera has a lens that is adjustable focal length, level view angle, and zooming capabilities. It allows you to have the most perfect view of the scene which is supported by variant varifocal lenses available.
PTZ Camera
A pan-tilt-zoon CCTV Camera can pan horizontally, tilt vertically, and zoom in and out. It is primarily made to function in expansive areas that require 180 to 360-degree surveillance. In fact, you can automatically set the camera to monitor as per set schedules.
CCTV Video Recorders (Digital Video Recorders(DVRs) and Network Video Recorders(NVRs))
Both NVR and DVR are equipment used during Surveillance camera installation and are determined based on what kind of camera and purpose one to achieve. NVR and DVR differ in how they process recorded raw video data. For NVR, it encodes and processes video data at the recording camera before transmitting it to the storage and external view. On the contrary, DVR converts of analog footage to digital footage.
Factors to Consider Before Installing CCTV
- Camera type to be installed
- The area to be covered by the camera
- Camera positioning
- CCTV Surveillance system power supply and backup
- Maintenance of CCTV Cameras
- The quality of the Image and Video
- Setup procedures
What Type of Camera to Buy?
The kind of camera you should buy is entirely determined by your preferences and needs. Different cameras are suitable for different needs and positions to be fitted. Also, you can incorporate different cameras into a single surveillance system. It’s important to note that no camera is superior to the other rather, specifications differ.
What to Look for in a CCTV Camera Security System Features
- Night Vision This is a feature you should consider while buying a CCTV camera that will ensure you record and capture clear images which are perfect in low-light environments, especially at night.
- Starlight Technology CCTV camera with starlight technology is designed to allow color, black, and white vision depending on the intensity of lighting and produce better images, unlike the average camera without this technology.
- Remote Access This is where one can access CCTV camera footage wherein a remote location especially using smartphone apps or computers. Through remote access, you can access the premises and assess the status and safety while away. With advancements in technology, better access controls to areas under surveillance will be .
- Smart Detections A camera with smart detection features is capable of analyzing movements and capturing events that will identify any intrusion to the premise without access.
- Expandability Surveillance Systems must prove the cost of investment and convince future adaptability that is likely to come upon even with differing security needs.
- Power over Ethernet (PoE) Camera with PoE does not need power tethering connections within the systems but rather draws power over the ethernet cable. This reduces the cost of surveillance camera installation.
In conclusion, Closed Circuit Television (CCTV) systems are here with us to give you the most versatile solutions that align with your surveillance requirements based on your needs. The provision of live feed recording and monitoring will give the best security updates.
