AS NZS 62676.1.1:2020 pdf free

AS NZS 62676.1.1:2020 pdf free.Video surveillance systems for use in security applications
A VSS usually consists of equipment containing analogue and digital devices as well as software. Because the technology and, with it, the VSS equipment and their functionalities develop and change very rapidly, single devices and their requirements are not defined.Instead, this clause defines and describes the VSS as functional parts together with the relationships between them.
A VSS usually consists of equipment containing analogue and digital devices as well as software. Because the technology and, with it, the VSS equipment and their functionalities develop and change very rapidly, single devices and their requirements are not defined.Instead, this clause defines and describes the VSS as functional parts together with the relationships between them.
The above-mentioned functions may reside in various hardware or software components of the system. Note that these functions do not necessarily always match up with separate devices, as several functions can be performed by a single device. As an example, a network camera device can capture the image (image capturing), store it temporarily (image handling),analyse it for VMD (image processing) and transmit it via the network (interconnections).
Alternatively several devices in one system can perform the same function.The purpose of image capturing is to generate an image of the scene for later processing by the VSS. An image source captures an image of the scene, creates image data and delivers that data to the image handling functionality using the system interconnections. The image data can be in analogue (e.g. composite video) or digital (e.g. JPEG, MPEG-4) format.
The functions of image handling include analysis, storage and presentation of an image or a sequence of images. The same functions can also be applied to other data (e.g. audio stream) and meta data. A VSs does not necessarily contain all of these functions.
Image handling can be performed by one or several devices that make up the VSS (e.g.monitors, recorders, image analysers, intelligent cameras and remote workstations). One device can also handle several image handling tasks (e.g. digital video recorder).AS NZS 62676.1.1 pdf free download.