Introduction to Digital Surveillance Systems

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. Pixels are measured
Analog cameras are measured by TVL, Television Lines. 600 TVL is the Best, 320 TVL is the lowest quality.
Motion Recording
Systems and cameras can be configured so that video is only recorded when there is movement
Types of Cameras
Bullet -- are self contained and easy to aim.
Dome -- are covered with a plexiglas dome so that they cannot be tampered with
Vandal Proof Dome -- are hardened so that they can be hit with a bat/ hammer and not be damaged.
Box -- Are just the camera unit. You then add an appropriate Lens and Mount
Cameras are built to be used inside, or outside.
Low Light cameras can see in Low Lux. (Lux is a measurement of light)
No Light cameras use Infrared lights to illuminate an area and the camera can see the Infrared light.
Wide Dynamic Range Cameras can view in a wide range of lighting conditions
Auto-iris lenses automatically open and close the iris based on lighting conditions.
PTZ Cameras -- Pan, Tilt, Zoom
Not all PTZ Cameras do everything. Some only Pan, Some only Zoom.
Eli HATES Analog PTZ Camera Installation
PTZ Camera is connected to a Controller on the DVR/ NVR. Generally PTZ Cameras are wired in a loop configuration.
PTZ Cameras use protocols to communicate. Pelco D and Pelco P are widely used.
PTZ Cameras can have built in intelligence so that they can follow movements, or perform a preprogrammed pattern.
Networking
WAN Connection for remote viewing should be a minimum of 2Mbps upload speed
Mega Pixel Cameras can bog down a LAN.
Parallel networks are many times used to separate the Surveillance Network from the Computer Network.
Don't use an NVR/DVR for any other service then surveillance.
Client Expectations
Clients will think their system will do everything they see in Mission Impossible. Make sure to do a good job on Expectations Management
Legal Considerations
Surveillance systems are regulated by local laws. In Maryland taping Video is easy, but taping audio can run into legal issues. Talk to a lawyer!
Buying Parts
Network Cameras are built by reputable manufacturers and can be purchased like any other computer equipment.
Analog cameras are built by thousands of no name Chinese manufacturers. Be careful to know what you are buying.
Final Thoughts
Digital Surveillance is a high profit and relatively easy to do business.
It requires a high materials cost
Make sure you plan properly, and buy good product. You don't want $6000 of equipment installed and have the project fail.
Resources

[jenko]

Great video, I love the fact that you take your time in your videos and get the info out there, other people do these three minute videos and just confuse people . Great job .

[mdjavedsheriif]

Never mind if its not abridged or condensed. People can just watch what they want ofcourse they know how to forward it don't they. It's best that you keep your tutorials big enough so that its comprehensive.

Eli, you are a library of computer knowledge, and I have improved a lot after watching your videos. Hats off to you man!

[MT.]

Excellent video:
Sharp sound, clear speech and excellent explanation.

[Rigelanthares]

Eli, you are a good teacher. love your sincerity. Please continue serving the world mate.

[Mrmorris]

The best Teacher i have ever heard, so happy i found your channel. Thank You Eli.
I look forward to watching and learning from you.

[SirSilversilk]

Eli...you are a Godsend! I stumbled upon your page and have been watching your videos for 3 days straight...absolutely fantastic!! Thank you sooo much...you are a GREAT teacher! This video was great and I cannot wait for the rest of the surveillance videos you have in store for us.

[HERBPLASTER]

Fantastic video for a newbie like me ... very thorough, excellent presentation ... a lot of very useful info ... I have got a better understanding on your 1 site than I have scoping out 12 others !!!

[gplusbusinesssolution]

I am in Toronto, You are the best camera teacher. Keep going. Thanks for your job.

[dolak]

Sir God bless you, your sincerity is a reflection of your honesty, may you prosper in your endeavors. Your lecture is beyond any price.
D S Hoathi - Singapore.

[zak]

Incredible talk Eli. You are an amazing teacher. IMPORTANT: your forgot the fount of MOST COMMON TROUBLE of most newly cctv installers: power supply in general and dc inverted polarization in particular. If you plan to do this make sure you learn the basic of electricity and learn how to use a multimeter. You can fry all the system or a expensive camera if you dont know about this stuff.

[leitchv]

Thank You for this AWESOME video. I am not stupid, but have a lot to learn and you speak in a manner that I can understand. Your explanation of the different equipment is exceptional as well. i will be installing our home Surveillance System and really did not know what to purchase except off the shelf systems. You have given me the knowledge to do more research in what system I truly will need for my own circumstance. Keep up the Great work you do FREE!! It is Appreciated!

[parveenpardhe]

well explained. As a beginner I came to know many points in surveillance. Clear speech. Thank you.

[jujuwu]

I am now in the surveilliance field. But as just entering, I found it very hard to get through. Thank you so much for this introduction. Really helps me a lot.

[MetallicHorizon]

My new favorite subscription! Great video and audio made this experience so much easier to follow. Thank you Eli.

[michaelparry]

Eli, these new series of videos on camera systems will be very useful for me within the next months. I will need to install several Bosch AutoDome cameras and set them up to monitor several process points at our treatment plant. Thanks gain.

[parillo]

14:35 'this camera is DUMB, its below retarted"  that about cracked me up but its true :)

[jetusa]

Hi. I like the positive level of discussion. Most of us newcomers don't have the expertise about the subject. I bought a system with 8 cameras. The price was low, But I learned a few things. The documentation was terrible, But eventually got it there. I now know what to look

[gaurigodambe]

It was a real amazing stuff Eli ... Now I am feeling much more confident about the same... The types of cameras n many more things really helped me out ... GOD BLESS U

[charlesm.]

I really love watching your videos Eli! Thanks for what you do.

[agborieruwetele]

Thank you very much for the beautiful lecture you are given online. i enjoyed it so much and main you remains abundantly blessed.