IP network security cameras
Buy IP network security cameras - online in South Africa
IP security camerasDigital / IP Security cameras A digital network video surveillance system offers you a number of improvements over traditional Close Circuit Television (CCTV) video systems, like superior image quality and a large variety of built-in superior features such as scheduling, motion detection, multiple streams and more. ....more..
IP security cameras
Digital / IP Security cameras
A digital network video surveillance system offers you a number of improvements over traditional Close Circuit Television (CCTV) video systems, like superior image quality and a large variety of built-in superior features such as scheduling, motion detection, multiple streams and more.
The major disadvantage and possibly deciding factor is cost. We will try and weigh the Advantages here over the traditional Analogue cameras.
- High resolution and pixel perfect image quality
- Adjustable picture quality
- No electrical noise problems (electric spike and electronic interference)
- Adjustable quality with multiple streams for PC or real-time mobile viewing (through the Internet)
- Record footage to a PC, DVR or on to an onboard memory card
- Rich features such as
- controlling the Infra-red night vision
- motion detection
- multiple streams for PC and mobile viewing and digital recording
- Wireless IP cameras gives you the freedom to install the camera anywhere without complex wiring.
- More expensive than analogue cameras
- A network is required for wired cameras (hub, routers or ADSL modem with various ports).
- The optional Power over Ethernet feature reduces the number of cables to the camera, but requires a POE hub or POE injector.
Some resourceful manufacturers use a modified H.264 codec called H.264 plus.
It was officially incorporated as a non-profit, 501(c)6 Delaware corporation on November 25, 2008. ONVIF membership is open to manufacturers, software developers, consultants, system integrators, end users and other interest groups that wish to participate in the activities of ONVIF. The ONVIF specification aims to achieve interoperability between network video products regardless of manufacturer.
The cornerstones of ONVIF are:
- Standardization of communication between network video devices
- Interoperability between network video products regardless of manufacturer
- Open to all companies and organizations
- Interoperability – products from various manufacturers can be used in the same systems and "speak the same language"
- Flexibility – end-users and integrators are not locked within proprietary solutions based on technology choices of individual manufacturers.
- Future-proof – standards ensure that there are interoperable products on the market, no matter what happens to individual companies.
- Quality – when a product conforms to a standard, the market knows what to expect from that product.
- IP configuration
- Device discovery
- Device management
- Media configuration
- Real time viewing
- Event handling
- PTZ camera control
- Video analytics
Addresses common functionalities of IP video systems, such as video and audio streaming, PTZ controls, and relay activation.
Addresses common functionalities of IP access control systems, such as door state and control, credential management, and event handling.
Addresses video storage, recording, search, and retrieval.
Addresses device discovery and configuration, as well as the management of TLS certificates.
Functionality to retrieve information, status and events and to configure the Physical Access Control System (PACS) related entities such as access rules, credentials and schedules.
(Release Candidate) Support for video streaming features such as the use of H.264 and H.265 encoding formats, imaging settings, and alarm events such as motion and tampering detection.
f/2.0 = Smaller Aperture, Less light reaches Image Sensor, Deeper Depth of Field (More of the picture is in focus) than f/1.8
f/2.2 = Smaller Aperture, Less light reaches Image Sensor (poorer night vision), Deeper Depth of Field than f/2.0 (More of the picture is in focus - very sharp image across entire image)
Ground your equipment and camera case very well, and use surge protectors and POE / Network surge protectors.