Video

Question 1

What 3 factors need to be considered when determining the FOV requirements?

Answer 1

1) Target
2) Activity
3) Purpose

Question 2

What are the 3 levels of assessment for Video surveillance systems?

Answer 2

1) Subject Identification-Subject should occupy 10% of the overall scene width.
2) Action Identification
3) Scene Identification

Question 3

What are the 7 main elements of a CCTV System? What are the three primary components for both analog and digital systems?

Answer 3

1) Scene
2) Field of View
3) Camera (Primary Both)
4) Communication Transmission (Primary Analog and digital)
5) Monitor (Primary Analog) (Digital = PC)
6) Recording
7) Controllers and automation equipment

Question 4

What are the 7 steps to defining a CCTV system before requesting pricing?

Answer 4

1) Define the system’s purpose
2) Define each cameras purpose
3) Consider the area to be viewed by each camera4) Choose the type of camera
5) Choose proper lens for camera
6) Determine best transmission method
7) Determine the control area, triggers, interfaces, and priorities for each camera

Question 5

What is the CIF resolution?

Answer 5

352x240

Question 6

What are the 3 major factors determining lens selection?

Answer 6

1) Format Size (Lens format size must match camera imager format size, format is the area that the light is focused on)
2) Distance from Camera to Scene
3) Field of View (Focal Length)

Question 7

How many spare camera parts should be kept on site?

Answer 7

5% of the system

Question 8

What are the five general rules of CCTV system design?

Answer 8

1) Keep system in perspective.
2) Let application choose the equipment.
3) Design generically (don’t start by specing the cams).
4) Design for the best option first.
5) Don’t feel the system must be built all at once.

Question 9

What resolution does LPR require?

Answer 9

70p/ft or 231 p/m

Question 10

What resolution does Identification require?

Answer 10

46p/ft or 150 p/m