Poor surveillance camera placement along with a bad solution design could end up compromising a security system and may render some cameras of little to no security value, says MARC VAN JAARSVELDT, consultant for The Surveillance Factory.
Despite the exciting features of today’s video surveillance cameras, poor solution design and poor camera placement compromises the end result and renders most cameras of little or no security value. He says that this ultimately results in a camera-system that may fail to solve security challenges on a site.
There is a clear lack of risk-analysis skills and the ability to design a solution that offers to maximise security value. What clients need today is a detailed site-audit and a resulting solution that solves security challenges and enhances the client’s awareness of their security environment.
Traditionally, video surveillance systems have been poorly designed and are still compromised despite the plethora of advanced features that cameras now have: Todays IP cameras can take advantage of some incredible features that they now offer: ultra-high resolution, advanced WDR (wide dynamic range), built in analytics and edge storage. But the design methodology used often does not make the best use of these features and fails to deliver on a security level.
The Surveillance Factory has seen many camera solutions constructed using what is referred to as a “general-overview” camera: These cameras are chosen to provide a wide or broad overview of a large area giving the sense that this area is adequately surveilled, but in reality, they offer nothing more than a bird’s-eye or panoramic view with no specific intention to manage risk within that area. If there is an incident of any kind, there is often no forensic value contained within the video footage because the overview is too wide and the camera, despite the fact that it may be a high resolution camera, is not performing a specific function by viewing an identified target.
In nearly all cases the video-camera position selected was incorrect. Placing it too far away and not using it to manage a specific area, makes it generally impossible to identify a target. The issue lies in the camera’s inability to capture the right number of pixels-on-target required for identification from that distance and position.
The solution lies in selecting the correct video camera suited to a specific area and more importantly, making certain that the camera addresses a specific risk and does not fall into the general overview trap: “You will then get excellent, high quality footage all the time and when video evidence is required, it will offer forensic value as the camera will provide clear images that cannot be contested.
Interestingly, he says that in South Africa, with its high crime rates, cameras are frequently pressure-tested and security managers often end up with useless footage that has no evidentiary value: This brings into question the entire premise that the camera system installed is valuable to the organisation and is actually enhancing security.
The average number of cameras deployed per site has steadily been increasing and this trend reinforces the need for system integrators to design solutions more carefully.
Here are some tips for selecting a camera and designing a solution:
1. Choose your video cameras and positions carefully. Have a specific surveillance goal in mind for each device.
2. Avoid general-overview cameras unless they are needed for an operational or process-control reason (e.g. to view an assembly or production line in a factory).
3. Make sure that the camera resolution is high enough so that the footage it generates has evidentiary value. i.e. the number of pixels-on-target should agree with the standards for detection and identification, that the camera and VMS manufactures all publish.
4. Select fewer high-resolution cameras that record at a decent frame-rate (no less than 15fps) for a shorter time frame, as opposed to many lower-resolution cameras recording at low frame-rate for a long period of time.
Win a Poster Heater with Gadget and Takealot.com
This winter Gadget and Takealot.com are giving away three Poster Heaters, which look like posters but become heaters when you plug them in.
Three Gadget readers will each win a unit, valued at R550 each. To enter, follow @GadgetZA and @Takealot on Twitter and tell us on the @GadgetZA account how many Watts the heater consumes.
What’s the big deal about these heaters? Many of us are struggling to keep the balance between soaring electricity costs and the need to keep warm this winter.
However, the recently launched Poster Heater by EasyHeat and distributed in South Africa by Takealot.com is not only one of the most cost effective electric heaters currently on the market, it is also easy to setup and use.
As the name indicates, it is a poster similar to one you would hang on a wall. But, plug it in and it turns into a 300 Watt heater. The Poster Heater isn’t designed to heat hallways or large rooms, but rather smaller ones like a bedroom or a baby’s nursery or a dressing room.
It uses radiant heating, which means that it heats up in a couple of minutes and the heat is directed at the objects or people around it, quickly taking the chill out of the air and providing a comfortable ambient temperature.
The other advantage of radiant heating is that it doesn’t dry out the air like infrared or gas heaters. Users also don’t have to worry about their children or pets getting too close to it because, even though it gets hot, it can be touched.
To enter the competition follow the steps below:
Competition entry details:
3. The competition closes on 31 July 2018.
4. Winners will be notified via Twitter on 1 August and Takealot.com will be in touch to organise delivery.
5. The competition is only open to South African residents.
Deezer to host Hotstix’s Mandela tribute playlist
Deezer is celebrating Nelson Mandela on the centenary of his birthday by hosting a tribute playlist created by music legend Sipho “Hotstix” Mabuse.
Mabuse, a legendary figure in African music, first rose to prominence in the 1970s with his band Harari and later developed a name for himself as a solo artist. One of his best known songs was the global hit BurnOut in the 1980s.
The playlist takes the listener on a captivating musical journey through the life of Nelson Mandela. It was compiled by Mabuse, who consulted with Mandela’s family and friends to ensure that the music would be relevant and accurate. The playlist also features commentary by Mabuse, which was recorded in his Soweto home.
“I have tried to tell the story of the music that Madiba loved,” says Mabuse. “The Playlist excludes the time in prison obviously, as Madiba would not have had exposure to music in that time. We have focused on the music we know he loved before and after that period. This recording was really an emotional journey for me, but an incredible opportunity to document these memories.”
The playlist features the music the young Mandela loved, such as The Manhattan Brothers, Solomon Linda, Brenda Fassie and Miriam Makeba. It includes struggle songs from Chicco, Johnny Clegg, Hugh Masekela and Yvonne Chaka Chaka. The playlist also includes Mandela by Zahara, one of the younger artists who caught Madiba’s ear.
Mabuse also offers stories of his own songs, such as Shikisha, a song greatly beloved by the former President.
“I was delighted to share my thoughts and hope the listeners enjoyed the musical journey,” says Mabuse. “Madiba did enjoy music immensely and we all have a purpose wherever we are in the world to celebrate culture and to learn from different cultures and music forms and styles.”
This playlist was inspired by the Nelson Mandela 100 campaign, calling on corporates and individuals to act as sources of inspiration and engage in conversation and action.