Buying CCTV systems can be a daunting task, and it could be one of the most valuable tools in your arsenal to combat and deter crime. It has been well documented that over 80% of all CCTV systems on the market are indeed useless to police in solving crime due to poor camera location, unsuitable lens choice and insufficient lighting just to name the top three failings. Furthermore you need to understand what outcome you are wanting before you start, to help there are 3 basic guidelines to follow to help ensure a desirable outcome is obtained.
There are 3 tasks a camera system needs to catch the crooks
This is when the object (object of interest) comes into view but only occupies 10% of the entire field of view. The target (something or someone) has been seen and is in camera range.
This is when an object comes into camera view taking and takes up 50% of the field of view (ie half of the viewing monitor). At this point you will be able to determine what the object is, such as a person etc. but cannot may not be able to make out any distinguishable physical features.
This is when the target object occupies 120% of the view of the camera, (this could be the top half of a persons body. At this point physical features can be clearly identified and a positive ID is achievable, this is what is required for police or management to successfully identify suspects so as it can be used to positively address a problem or crime.
Registration plate Identification:
In order to achieve car rego plate identification the vehicle needs to be in the camera view and the target plate needs to take up 100% of the field of view of the monitor or display, at this range positive plate ID is possible.
Please note that the above guidelines are reliant upon suitable lighting and correct camera placement, in addition these guidelines apply to analog (lower quality) cameras only. Higher quality systems such as IP cameras offer HD (high definition) quality and can work in more challenging situations.
Common uses of CCTV:
Employers use CCTV in to order to keep track of worker behavior, eg cash transactions recording and WHS concerns. It is common practice particularly in high-risk and high-security industries such as Banks and Financial Institutions, Fast Food oulets, production and manufacturing industries, medical and hospital facilities, shipping, logistics and even securities exchanges.
Camera are used for surveillance and often used in areas where a overall view is required, but may not be used for ID purposes, typical examples include government and commercial establishments, parks and main roads as well are areas where heavy congestion may occur.
Things to consider when deciding on a CCTV system:
Prevention – you want to stop or intervene in criminal or anti social behavior.
Detection – you want to gather evidence for the Police and the Courts.
Monitoring – you want to be able to view what is going on in your business at a glance for your own management purposes.
Here are two videos recorded using the same positioning, the same lighting at exactly the same time, check out the difference new technology can make ! Note these two cameras are similarly priced
Analogue camera – click here
Digital IP camera – click here
This camera set up is an example of detection, confirmation and identification could not be made and more cameras covering specific areas would be needed to achieve this outcome.
Title — CCTV systems Brisbane version 1.12 by Admin
Click here to see what Qld Police says about buying CCTV systems
When choosing CCTV systems Brisbane business owners have the same challenges as many others in large cities throughout the world in deterring crime and identifying culprits, call and we can simplify the process !