What Are Surveillance Cameras, And What Are Their Major Types?

The camera is one of the most common and easily recognisable forms of surveillance technology. Government agencies and companies build camera networks, but the lines between the two have blurred with the rise of real-time crime centers that can access any video stream.


Some modern surveillance cameras can even capture infrared light or 360-degree video, demonstrating the rapid development of camera technology. Some variants feature optional installed license plates and face recognition software that works in real time. 


The camera networks have also proven easy targets for malicious attackers because many are connected directly to the Internet. Technology has provided an amazingly secure surveillance cameras system for solving these issues. 

Understanding the Varieties of Cameras


Look at this graphic reference to common varieties of surveillance camera systems. It is by no means an all-inclusive list, and it is worth noting that certain cameras may include more than one of the below-mentioned capabilities.  

  • Bullet Cameras 


Cameras in the bullet form are small and cylindrical. All the camera's components—sensor, lens, and housing—are contained in a single cylindrical casing. These cameras have a fixed field of view and may include infrared LEDs for usage in dark environments.

  • Dome Cameras


Dome cameras are commonly used for indoor surveillance and are typically installed in the ceiling. The dome shape of the camera is intended to conceal the camera's orientation. There is a wide variety of add-ons available for dome cameras. 


Some cameras have infrared lights for use in the dark, some are tamper-proof, and others have varifocal lenses that let users change the camera's focal length. These are some of the most commonly used cameras for home surveillance systems. 


  • PTZ Cameras


Most security cameras are stationary, meaning they only record in one direction. Remotely operated pan-tilt-zoom (PTZ) cameras allow the user to track moving subjects by panning (moving to the left or right), tilting (moving up or down), and zooming (moving in or out). 


Because of this, operators can focus on certain locations or follow specific subjects. In addition to following a set pattern, the cameras can be directed to a particular angle. This camera surveillance system is useful for parking lots. 

  • Mobile Surveillance Towers/Poles


It's not true that all security cameras are stationary. Law enforcement agencies commonly purchase mobile surveillance devices. These units can range from manned towers that can be raised to 25 feet to crewless trailers extending a pole with PTZ cameras in all directions. 


These devices are frequently deployed at large-scale events and in busy business districts to improve safety and security. It is the best surveillance camera for government offices and confidential premises security. 

  • Thermal Cameras


Images are typically recorded using visible or infrared light. A person's heat signature can be detected using a thermal camera, allowing video of their motion to be recorded. These cameras may look like regular security cameras at first glance. 

  • Automated License Plate Readers


Computer-operated surveillance camera systems known as automated license plate readers (ALPRs) are used to record license plate numbers and images of vehicles and, in some cases, their occupants. One type of ALPR camera is the fixed camera.


It can be seen mounted on street lights, telephone poles, and other places. Mobile cameras, often installed in police cruisers, are also a part of these systems. Some government organizations have ALPR units that can be transported to certain areas. 

Conclusion


Get assistance deciding on and setting up a surveillance camera system from a business that has earned proper certification. Tech integrators who earn certification excel in three key areas: technical expertise, client service/support, and credibility. 

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