Inspiration
Having worked in the print media with corporations like Bennett, Coleman and Company Limited, Observer India Limited – A group company of the Reliance Industries Limited and Lok Prakashan Limited, the requirements and pain points were known and so were the challenges faced by the end users’. It was evident that there was a void which needed to be addressed from the end user’s point of view.

This was the right opportunity for him to put together a team with past experience in print media to study, research, conceptualize, architect, develop and bench test a color registration system. And while doing so care was taken to keep the costs to an affordable level.

Raj (Rajendra S Parmar) then founded Emerging Technology.

Emerging Technology developed a system, accuVISION™, which addressed the requirements of the industry. The understanding of the industry benchmarks and prevailing market scenario helped tremendously in reinventing the system and while doing so incorporated new features to attain enviable position.

The advantage of in-depth relevant knowledge, qualification and multi-disciplinary expertise has perpetrated Emerging Technology’s accuVISION™ to make early inroads in the industry.

Close on the heels of accuVISION™, Emerging Technology developed On-Line GSM monitoring system - accuMEASURE™, a first of its kind product in the industry. As we are all aware GSM variations cost a dear to printers / publishers. Till this development is installed, all the newsprint users have to take the sample to a laboratory and validate the GSM, though an On-Line-GSM measurement is the need of the industry. The system is under beta testing and once through, will be installed at one of the largest newspaper houses in the country.

Emerging Technology diversified into Telecom using the same technology of embedded system, Re-usable objects and real time system. With the cellular telecom managing thousands of sites while monitoring Diesel level, Battery State-of-Health, Alarms, Power management and other parameters. We thought it was the right time to enter the market through our offering of GPRS based data capture and offering them through web enabled technologies. The product is GPRS based Monitoring System.
accuVISION™ 45

The accuVISION™ is a Windows based color registration system, which is developed after studying the market trends and customer needs. The system feature enables reducing operating costs & print wastage and responds quickly to the desired corrections.

The high resolution digital camera grabs the image of the printing marks and lends itself for image processing. The camera image being of very high resolution is divided into multiple zones so that the processing time may be reduced to a minimum. The software adapts itself immediately to the area of interest. The software has inbuilt algorithms to clean the image for all speeds.

If the printing house is contemplating moving towards digital automation, the accuVISION™ will pave the way forward and coordinate data exchange that may be required at any time.

The entire system comprises of a high-powered windows PC with clock speed in excess of 3 GHz. For presses with more than two webs it employs a PCI expander to reduce the data transfer load on the CPU bus.

The PC is preloaded with a digital I/O (Input / Output) card to interface with the PLC. The PLC drives the position controlling motors of printing machine. The CCD color camera with more than 1000 dots resolution provides the desired accuracy.

These cameras are triggered by a common signal to grab the image simultaneously. This trigger signal is derived from the electronics which senses the paper position.

Highlights
• Windows based central computer
• Friendly & Informative front end
• High-resolution camera; Lending overall high scanning accuracy
• Automatic Mark cognition and correction
• Accurate Color registration, Displacement Detection & Correction
• Machine Speed in excess of 90,000 CPH
• Up to 20 printing towers per control unit
• Automatic Calibration
accuVISION™ Schematic Diagram
accuVISION™ – User Interface
Feature set
The Front End Terminal The front-end terminal is a very user-friendly interface giving complete visual presentation of the happenings at the printing machine. It displays the color offset and the correction in progress giving the X-Y coordinates of offset at every unit. A sample of the friendly user interface will look as follows.
Finer position control A digital encoder is deployed to provide very fine control over the length of the newspaper. This gives the printer a freedom to choose the mark position. The encoder can be tuned to an accuracy of 1 mm over the paper length.

Synchronization The cameras are triggered to capture the image grab as soon as the marks appear in front of the camera. This trigger is simultaneously applied to all the web units. The synchronization eliminates unnecessary grabs and hence the algorithmic efficiency. The trigger algorithm is build using a proxy sensor and a TTL circuit.

Mark Search The philosophy to search the mark is very innovative. The algorithm identifies the color marks and cleans up the image of any smudge that may be present. Having acquired the image it finds out the boundary of the mark and computes the distances between the images in both the directions. The software has a never before algorithm to detect a slant in the image of a given color. This is a case when x-y correction will fail to register the images.

Quick Registration The camera captures the images continuously irrespective of the printing. These images are stored in a pre-designated directory for the software to pick up the image and process it sequentially. Once the desired correction is computed, the motors are actuated appropriately depending on the correction required. Subsequent image grabbing will happen only after the correction is ensured. This would depend on the web length of the farthest web unit from the camera position.

Manual over ride It may be necessary to manually over ride the auto color registration system. This may be required in case one of the color marks is missing or there is a catastrophic failure which could be a printing machine or the color registration system by itself.

Cut off control (Optional) Having achieved the registration, the digital encoder helps in understanding the start of the printing. It helps in ensuring the print area in the center of the page. For cut-off control, all the black plates have a horizontal mark on the page which is sensed through an optoelectronic sensor with fiber optic cables.

The Hardware
The Camera The camera (Sony or equivalent) is a C-mounted color digital camera using IEEE1394-1995 digital interface. The transfer speed is 800 Mbps and supports higher frames.
The camera has external trigger, which is synchronized by using a signal from the proxy sensor generated from the folder. This allows exact coordination with external world.

The exposure time is software controlled and the camera can go as low a, 2 microsecond from a starting point of 850. The faster shutter speed emulates stroboscopic effect at high speed and a near still image is grabbed at machine speeds of 100,000 impressions per hour.

The camera offers several “Image area of interest” which can be exploited to minimize computing time to advantage. The screen area is divided into different zones and the application can now concentrate on the area where registration marks are concentrated are considered. This reduces a lot of computing over heads.
Salient features are:
Image sensor 1/2-type progressive scan
Number of effective pixels Approx. 800K pixels 1,034 (H) ´ 779 (V)
Output image size (Max.) 1,024 (H) ´ 768 (V)
nterface format IEEE1394-1995
Frame rate 15 or 30 FPS
Transfer speed 400 Mbps
HUE / Saturation / Brightness Adjustable
External trigger shutter 50 micro-second
Programmable Logic Controller (PLC) The PLC drives the position motors in lateral or longitudinal direction depending on the correction required. Every unit will have two motors for lateral and longitudinal movement each. Each of these motors will have two direction control signals also. Meaning, every single color unit will need four motor drive contacts.

In order to bring modularity 1 PLC is deployed for every unit. The PLC is configured to with 40 digital O/P and 16 Analog I/P.
 
Features
Competitive Edge
Schematic
Specification
Emerging Technology
205, Sea Shell, Green Fields
AB Nair Marg, Juhu
Mumbai 400 049
INDIA.
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