Surveillance cameras are an effective way to protect homes and facilities, but there is a lot to keep in mind when buying these cameras, such as mounting position and resolution.
Andrean Mucker of the computer magazine "CT" German that the surveillance cameras are video cameras running local area network (LAN) or wireless LAN (WLAN), pointing out that these cameras send their recordings through the network infrastructure that relies on laptop computers Smartphones and other devices to access the network and the Internet.
Three types
Currently, three types of surveillance cameras are available.With the internal camera, data and recordings remain on the server in the home network, which is an advantage, for example, when the Internet is interrupted, but this type of camera requires internal video analysis, which means more Of effort.
Cloud surveillance cameras store their recordings on web servers, which often require a subscription for this service, and devices are always operated via an application on a smartphone or web interface.
Mucker explained that cloud surveillance cameras are particularly useful for people with little technical experience or who do not want to buy more additional devices, and the disadvantages of these types of cameras consumption of the Internet package, with the possibility of data loss in the event of an Internet connection.
Some models combine the two modes of operation and give the user the option of how to operate the camera and in any mode, and there are many surveillance cameras include a memory card port, which allows the possibility of storing video recordings on the SD card (SD), which is a good alternative Anyone who wants to confidential his recordings and not pass them to external servers, nor does it require an Internet connection.
Cameras are usually equipped with motion sensors, which use high-frequency electromagnetic waves to scan the perimeter of the imaging.
For his part, Tim Metzger from the technology portal "Nets Welt.D" that the German through the application of the camera can show an alert message indicating the recognition of movement, and practical features is also adjustable recording time so that the camera is active only in the absence of User for home.
Criteria are important
Before buying, pay attention to some important criteria. For example, if the surveillance camera is to be used outdoors, it must be weather-resistant and equipped with at least IP65 protection class, which ensures that the camera is dust and splash resistant. Water from any angle.
Surveillance cameras must have a high resolution and wide angle starting from 100 degrees to cover the maximum ambient in which they are filmed, and to shoot in dark conditions must be equipped with camera "infrared" LED lamps.
The user should make sure that the camera, application, and software are protected with a secure password.