The market has developed rapidly, with manufacturers racing to develop the best IP CCTV equipment. All the hardware and software you need are now available.
Over recent years, a number of system gaps have been identified. PTZ cameras, particularly for external use, have not been readily available, and the control of PTZ cameras with joysticks has not been possible. Transmission distances have been limited to the 100 m achievable over Cat 5 cable, and video matrices with multiple monitor outputs have not been available.However, as IP systems develop at a frantic pace, these limitations are being overcome.
Excellent PTZ cameras for internal use are available now, and fully functional cameras for external use are being launched at all the main CCTV shows. Videoservers can also be used to provide high quality IP images from good analogue PTZ cameras.
The leading manufacturers now offer joystick control of their PTZ cameras, in which the joystick is
connected to the network like all other devices.
Fibre is leading the way in extending transmission distances. And, because optical fibre is electrically transparent, fibre optic transmission can be used even in the vicinity of heavy electrical plant. This means that Ethernet signals sent over fibre can be used where traditional coaxial cables could not, both as a means of extending transmission distances, and as a means of overcoming electromagnetic interference.
Video and data can be sent up to 4 km using multimode equipment, and a massive 30 km or more using single mode equipment.
Good software enhances IP systems, and well priced software is now available to view live and recorded images from multiple devices. Advanced features such as mapping allow camera locations to be seen easily, and the images from those locations can be brought to screen quickly by clicking on the camera item on the map.
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