Archive for February, 2011

Is There Anybody Out There?

Monday, February 28th, 2011

Working alone, or late at night can be very intimidating, what if something happens and you need assistance?  How can you be sure that somebody knows where you are and that you need help? It is well documented that lone workers are more vulnerable to threats and physical assault than others in the work force.

It is estimated that today in the UK 6.8 million people spend all or part of their working day alone. According to the British Retailers Consortium Crime Survey 2007-08, violence and verbal attacks on staff working in the retail sector is escalating. Figures show that one shop worker is attacked or threatened every minute of the shopping day.

Extended trading hours have increased the exposure to risk. Reduced staffing levels for late-night trading and problems with drunken customers make things even worse. Opening and closing of stores is identified as particularly risky times from reports of incidents. Closing a store late at night is much worse than closing in the early evening. It also means that night shift staff, such as shelf fillers have to travel to or from work at later hours when access to public transport or even use of their own cars may be more risky.

Employers understand that they have a duty of care to vulnerable employees and most will be proactive in providing lone workers with their own personal security device.

Products such as SitexOrbis Lone Worker Protection offer an easy to use and reliable solution. Using an existing mobile or smartphone, workers who are in distress or simply concerned can press a single key to instantly alert the emergency services.

  1. Red Alert key to be set up on mobiles to speed dial operators at the Lone Worker Response Centre
  2. An Amber Alert key to be set up to enable users to record their likely whereabouts
  3. 2 Way communication
  4. On-screen satellite and base-station mapping so users can be located
  5. A voice channel for operators to listen and assess situations
  6. Discrete alarm activation
  7. 24/7 operator support
  8. Audio recordings for incidents for use in courts

The UK based response centre is managed by SitexOrbis and emergency calls are handled 24/7, 365 days a year by a team of operators. The operators at the response centre are highly experienced and several are ambulance trained. Once an SOS call is received they will take appropriate action and can stay on-the-line until the issue has been resolved.

The experience and professionalism of SitexOrbis has won them the authority to dial the emergency services direct throughout the country. Mapping technology enables the operators to give the emergency services the location of the incident within up to five metres accuracy for lone workers with GPS phones.

For lone workers who do not have GPS phones, the screen maps show where the call was made and is verified by retrieving messages left by lone workers. This gives the emergency services the location of the lone worker or by speaking directly with an operator the location can also be confirmed.

Many of the incidents are recorded and many of these audio recordings have helped to gain numerous convictions by providing irrefutable evidence that perpetrators were at the scene of the crime and conveying the full force of the attack better than any written report.

What Does the Future Hold For CCTV Camera Surveillance?

Friday, February 25th, 2011

In an interesting article, Martin Gren, co-founder of Axis Communications AB and inventor of the world’s first network camera, has looked at the potential future development of CCTV.

Here is a summary of his predictions:

Shift from analogue

Moore’s law, states that performance will double every 18 months for the same cost. While this normally applies to consumer electronics, such as personal computers and mobile phones, it has parallels with network cameras. A modern digital camera can deliver 30 Frames Per Second (FPS) in HDTV 1080p resolution, compared with the first digital cameras that offered 1 FPS in 0.1 Mpix – a 600 times performance increase.

These benefits of IP video are clear when it comes to image quality, system scalability and ease-of-installation, specifically when installing systems of more than 25 cameras. The shift from analogue to IP has accelerated through the recession, as both manufacturers and consumers focus their spending on technology of the future.

The arguments for persevering analogue technology will become worse and worse, not only because network cameras are easier to install and provide better quality, but because the ‘digital-only generation’ will expect the continued progress that IP can offer.

Move towards standards

Supporting good standards leads to ease-of-use, and this is one of the reasons analogue video has remained dominant for so long.

Because all the major IP surveillance players have invested in ONVIF support, it is expected that this will become the dominant standard on the API for networked video.

Image quality and HD resolution

Even though network video provides much better image quality, there is still a lot more to be done. In the last 15 years most of the evolution has been on resolution and frame rate.

In the future, Moore’s law performance improvements will be used for image processing. The expectation is that this will enable the average surveillance camera to see more than the human eye – something that can’t be said today under hardly any circumstances.

First Terapixel camera
New CMOS technology will create sensors with huge resolutions that will lead to the first Terapixel camera. When this happens, it will be the optics, not the sensor, which set limitations on image quality.

HDTV is perfect for surveillance because the SMPTE standard guarantees frame rate, resolution, color fidelity and aspect ratio.

While megapixel is currently a trendy topic, it simply refers to the number of pixels in the image – all those other factors of a moving image are variable.  The HDTV standard will not last forever, but 15 years from now it’s likely that the majority of cameras will be HDTV compliant.

Future multi-megapixel (and Terapixel!) cameras will play important roles – either to store video in higher, more detailed resolution for forensic review or to crop out individual HD-streams.

On-board and cloud-based storage

Just like network camera technology has done since 1996, the storage market – including flash memory and Hard Disks – has also outpaced Moore’s law.

In the near future we will have on-board storage in cameras capable of recording HDTV resolution for several weeks at a time. In time this could lead to DVR’s becoming redundant.

Hosted video

If we can trust ‘the cloud’ with our money today, it’s logical that we would do the same for security video tomorrow.

The benefits are obvious: no need for a DVR, the option to have local NVR recording and no fixed cameras counts, coupled with the basic benefits of IP video. Allowing the video feed to be accessed from anywhere, through smart phones, laptops etc.

Hosted video is predicted to have an immediate impact in the near future – especially in the market small business market sector.

Analytics

This is one of the more uncertain areas to accurately predict and one where many have been proven wrong for the last 5-10 years.  Analytics will become mainstream, however the challenge is to be able to pinpoint exactly when it will happen.

Crucial to the success of analytics is that they have the end-user in mind through the entire development process – as opposed to bundling fancy analytics with every camera and hoping the installer sorts it out.

Industry verticals and trends in society

Today, we see most surveillance cameras in retail. As network cameras continue to improve, integrators and their users will discover many more applications.

City surveillance, transportation and healthcare verticals will experience increased growth as surveillance systems enable better operational efficiencies.

The residential market is another to keep an eye on. While many have tried selling cameras to homeowners, this is forecast to become a larger market, thanks in the main to hosted video.

The cost of deploying cameras systems will fall – mainly due to cost savings achieved in the areas of  storage and installation.

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