Ten Reasons to Buy a Network CCTV Camera over an Analog CCTV Camera
1. End to interlace problems
Analog Cameras:
- Interlaced scan;
- Each image formed from two interlace fields;
- Blurriness from capturing moving objects;
Network Cameras:
- Progressive scan;
- Entire image captured at one time;
- Crystal clear images even with a high degree of motion in the scene;
Benefits
- Superior image quality;
- Full image details;
- Precise, accurate information;
2. Power over Ethernet increases savings and reliability
Analog Cameras:
- Not available;
Network Cameras:
- IEEE802.3af;
- Industry standard;
- No need for power outlet at camera location;
Benefits
- Cost savings;
- Reliability with centralised power backup;
- Simple installaiton;
3. Megapixel resolution
Analog Cameras:
- Stuck with NTSC/PAL resolution;
- 0.4 megapixel at 4CIF and 0.1 at CIF;
- Limited image details;
Network Cameras:
- Many resolutions;
- different aspect ratios;
- 1 megapixel at 10x the resolution of CIF;
- Digital PTZ;
Benefits
- More details, easy identification;
- Digital PTZ, higher reliability and sumultaneous pan/tilt;
4. Intelligence at the camera level
Analog Cameras:
- Not available;
Network Cameras:
- Intelligent video;
- Purpose-built highly integrated hardware;
- Intelligent features: built-in VMD, Alarm Management, Image enhancement;
- Intelligent algorithms: number plate recognition, people counting;
Benefits
- More details, easy identification;
- More productive and effective means of surveillance;
- Event-driven;
- Scalable systems;
5. Integrated PTZ input/output control
Analog Cameras:
- Cabling separate for the video signal;
- Costly and cumbersome;
Network Cameras:
- PTZ control over the same network that transports the video;
- PTZ commands sent over the IP network;
- Integrated I/O can trigger anything and be triggered by anything;
Benefits
- Less cabling, cost savings, increased functionality and integration potential;
6. Integrated audio
Analog Cameras:
- Only possible with separate audio lines to the DVR;
Network Cameras:
- Audio captured at the camera;
- Synchronised with the video;
- Can be integrated into the same video stream;
- Two-way audio (duplex, half-duplex, simplex);
Benefits
- Many possibilities: simplex, half duplex, full duplex;
- Synchronised audio and video;
- Easy to install, cost savings;
7. Secure communication
Analog Cameras:
- No encrpytion;
- No authentication;
- Anyone can tap into the video or replace the signal from a camera with another video signal;
Network Cameras:
- Video encryption;
- Authentication using encryption certificates;
- Authorisation: to verify and approve the identity of the device;
- Privacy;
Benefits
- Secure image capture;
- Secure transmission;
- Evidence trail secured;
8. Flexible, cost-effective infrastructure choices
Analog Cameras:
- Expensive coax, proprietary fiber, wireless;
- Distance affects image quality;
- Addiong power, I/O and audio further complicates this situation;
Network Cameras:
- IP = established, standardised, interoperable;
- Digital images = no quality reduction;
- Many streams transmitted over the same line;
- A single network wire = hundreds of simultaneous full frame rate video streams;
Benefits
- Image quality, flexibility, scalability, future-proof;
- Resulting costs comparatively low;
9. True digital solution
Analog Cameras:
- With every conversion image quality is lost;
- 1. Analog signal digitised in camera's DSP;
- 2. Digital signal converted back to analog for transport over coax;
- 3. Signal once again digitised at the DVR for recording;
Network Cameras:
- Images digitalised once;
- Stay digital;
- No unnecessary conversions;
- No image degradation;
Benefits
- Superior image quality;
10. Lower total cost of ownership
Compare
- The cost per channel;
- Flexibility and performance;
Consider:
- Back end applications and storage;
- Industry standard, open-system based servers vs. proprietary hardware like a DVR;
- Infrastructure used - can it be leveraged for other applications?
Why not call our team to find out how we can help you. Simply call Viper on 0844 5 000 333 today!
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