There are many different types of security cameras. As with any decision on a security system, it would be best to consult a professional security firm to get an expert opinion.
When considering a security camera, it is helpful to understand the different components that are involved and how they work. The core components of a security camera are, the physical parts, transmission method, recording type and any special features.
The physical components of a security camera are the housing, recording device, transmission device and storage.
What makes up a security camera?
The housing is the part of the camera that all the other parts are stored in. The most common are pro box, dome, pan and hidden. Most housing types have an indoor and outdoor variation, protecting the camera from the elements.
A pro box camera will usually have better resolution or quality than other camera types. It is easier to change lenses in pro box cameras as well.
A dome housing looks like a glass bowl. These housing systems allow the camera inside to move freely and provide a 360-degree field of view. One of the major benefits of dome cameras is that it is difficult to see where the camera is pointed from the outside. That means that burglars or thieves cannot tell when the camera is watching them.
A pan camera is can usually be controlled remotely. They can be moved up, down, left and right. They can also zoom in or out.
Hidden cameras are typically very small and can be mounted in places that others cannot. Because of their size, these cameras have fewer features and a lower resolution or picture quality than other cameras.
The recording component of a camera includes the lens and circuitry that processes images, as well as any other devices that change a picture.
In basic security cameras, a low-resolution lens will be used to capture still images and record video. Low-resolution lenses can be used on most types of camera. These cameras are best suited to monitoring small areas like rooms in a house. If there is a larger area being monitored or if specific information needs to be captured by the camera, like a number plate, then a high-resolution lens would be used.
In some cases, a security camera will need to work in low light or no light situation. This could be outdoors at night or inside a building when the power fails.In these situations, infrared or low light cameras would be used. There is an infrared light source in the camera housing that illuminates the area being monitored allowing the camera to see in the dark. Because humans cannot see light in the infrared spectrum, the room would still appear dark to us.
Another way that a security system could see in the dark is by using a thermal camera. Thermal cameras “see” heat rather than light. They detect the radiation given off by a heat source and convert it into an image. Humans and warm-blooded animals give off heat, allowing the camera to detect intruders.
The final component that all security cameras need is a transmission device. The camera needs to send video or still images to a computer or recording device. The two options available are wired or wireless.
In a wired security system, a physical cable needs to be run from the camera to the central control device. This can be useful because the cable can also provide power to the camera. It is also possible to transmit more data along a cable than it is wirelessly. Physical cables are best for cameras that need to record high-resolution video, 24 hours a day.
In a wireless security system, each camera will be equipped with a wireless antenna that connects to the central control system. The cameras normally use WiFi which means that they can be connected to the internet more easily than wired cameras. These systems are perfect if there are multiple locations that need to be monitored over a large area.
Unfortunately, any device that is connected to the internet can be used by hackers to attack organizations and websites if the devices do not have adequate cyber security.
There are special features that can be included with most cameras. Motion activation can be very useful if one only needs to record video if an intruder is present. The camera will have a sensor that detects movement and sends an activation command to the camera to start recording. In some advanced security systems, cameras can track motion and automatically zoom in and record an object as it moves.
In high-security areas, cameras may also use facial recognition software to monitor who goes where, or if there is someone present who is not authorized to be in an area.