Digital Cameras

Info Level: Beginner Presenter: Eli the Computer Guy Date Created: February 11, 2012 Length of Class: 95 Minutes Tracks Digital Surveillance Prerequisites None Purpose of Class This class introduces students to the basic concepts that are required to install and implement Digital Surveillance Systems. Chapters Introduction (00:00) Types of Systems (06:18) Types of Cameras (39:12) PTZ Cameras (53:32) Networking (01:04:03) Client Expectations (01:10:01) Legal Considerations (01:13:46) Buying Parts (01:16:59) Final Thoughts (01:20:25) Class Notes Introduction Digital Surveillance systems are very easy to learn, but you have to make sure you plan properly. Types of Systems Analog DVR Systems -- Use Siamese Cable to connect cameras. All cameras are directly connected to the system. PC Based Systems are simply PC's with a DVR card installed. DVR Appliances are specially built computers that are cheaper then PC Based systems, but are generally impossible to repair. Video quality will never be better then DVD quality (Which is not actually very good) IP NVR Systems -- Use Ethernet and TCP/IP to Transmit Video These systems support very high resolution cameras FPS -- Frames Per Second -- How smooth the video viewing is 30 FPS = Real Time, 15 FPS = Perceived Real Time, 7 FPS shows Jerky Video FPS can be measured: Real Time Viewing and Recorded Video, It can be per card/ system and/ or per Channel Resolution IP Cameras use standard resolution measurement for any digital camera ...