Monday, April 26, 2010

IPL goes 3D with SpiderCam

The mastermind of the spidercam®system is Jens C. Peters. He founded CCSytems Inc. in 2000 in Austria with the original aim to further investigate the innovative concept of thespidercam® and to develop a fully functional prototype. He intended to create a cable-suspension system for a camera transporting device, capable of moving not only laterally or horizontally along the ground, but also vertically, thus providing full 3D-movement while covering wide areas; applicable indoors as well as outdoors.

To reach his goal, he carried out an in depth study, made numerous calculations, plans and CAD-drawings, built models and revised them again and again. One of his major efforts was always to reach technical solutions by means of already well-known, standardised and reliable components which could be arranged in a modular manner. All developments Peters achieved are protected by international patents, and the name spidercam® is a trademark.
 
At the end of 2003 the project passed its baptism of fire: For the first time the spidercam® as known today took off, hovered and moved around freely in a large event-hall in Carinthia (Austria). In 2004 the system was employed for the first time on a television production in Austria. In the same year, J. C. Peters teamed up with the German company PMT and thespidercam® entered the German market. Right from the very beginning thespidercam® provided fantastic shots for various German broadcasters and quickly became integrated in the German media landscape.
spidercam® - the better cable camera

Moving through space without being limited by obstacles on the ground the spidercam® effortlessly and silently follows the commands of the spidercam® pilot. The free movement in space opens up completely new and unique perspectives, thus bringing your audience closer to the action than ever before. This is achieved by using the latest computer, network and drive technologies, combined with approved and high quality camera and video-components.
Basics:
Four motorised winches are positioned at each corner at the base of the covered area. By controlling the up- and unwinding of the four Kevlar-cables the camera-carrier (dolly) is able to reach any position in space. The spidercam® pilot is operating this three dimensional dolly movement; his inputs are processed by a special software, which forwards the commands to the winches. This ensures the save dolly movement at any time. The real-time communication between the winches and the control station is realised by fibre-optic cables. Another two fibre-optic cables are woven into two of the Kevlar-cables, which enables double information processing: the camera and remote head receive their respective commands, while the camera transmits its HD-Signal back to the control station. The remote head, which houses the camera, is not only responsible for the pan and tilt movement, it also controls the lens remote (focus, zoom, iris). A gyro sensor, which is installed in the dolly, stabilises the horizon. A specially trained spidercam® camera operator is responsible for all camera issues.
Set-up:
Whether TV or film productions, indoors or outdoors, small or large areas: the characteristics of a spidercam® installation are the modular design, the low weight of the components and the small rope-forces, therefore a successful set-up is possible at almost any location. With the right preparation the installation will be realisable at even the most extraordinary places - we always find the optimal solution!
Safety:
Safety is our highest priority. The spidercam® is certified by the German BGV and has been awarded the BGV C1 certification. This approval guarantees the highest level of European safety standards. In addition to the internationally approved German seal the spidercam® system is also authorized to fly over audience in accordance to the requirements of the French Bureau VERITAS.
In case of an emergency or a malfunction the security concept will stop the system immediately. This stop is composed of the deactivation of the winches and the activation of all brakes, which brings the system to a halt within milliseconds. A stop can either be initiated manually by pressing one of the "emergency stop" buttons, or automatically by one of the integrated safety protocols.
 
The most important security components:
  1. tension sensor checking the Kevlar-cables
  2. torque sensor checking the winding control unit
    mechanical check of brake functionality
    constant monitoring of the functionality of all brake contactors, motor contactors, servo amplifiers, emergency stop button and fibre optic connections
    constant monitoring of the kinematics and dolly position
Every safety-related electrical circuit exists twice. Furthermore there are two breaks in each winch, each break strong enough to handle the complete load even without electrical power. If there is a surprising loss of power all brakes will be activated automatically.

An artist's impression of how the SpiderCam looks above the pitch
 
The SpiderCam works on an aerial cable system
 
 

Monday, April 5, 2010

BSNL launches 3G services in Puducherry

PSU BSNL launched its 3G mobile services in Puducherry (earlier known as Pondicherry) falling under the Tamil Nadu circle.

The services were launched by Union Communications Minister, A Raja.

On the occasion, Mr. D.Varadarajan, CGM BSNL Tamil Nadu Circle said, “BSNL 3G Mobile service is now available to all postpaid and prepaid subscribers of Poudecherry and Karaikal city and surrounding urban areas.”

As a launch offer, BSNL is offering 3G SIM for Rs 59 with 50 free video calls and 25 MB data storage usage. After the consumption of free calls, the tariff applicable will be 30 paise per minute for local voice and video calls while STD voice and video calls will be charged 50 paise per minute.