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Plug & play image processing sensor

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article image The ICS 110 -- detects contours precisely.
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WHETHER at rest or during rotation, the new ICS 110 image processing sensor from SICK can detect contours precisely and check them for taught-in features.

The compact plug & play sensor, in which the camera, optics, illumination and evaluation units are all accommodated in a single housing, allows two-dimensional inspection of parts on transport and feed systems - to check assembly, determine presence and position, and check labelling and printing.

The reference patterns and search windows for up to 16 objects can be stored in the ICS 110 Intelligent Camera Sensor. The sensor can examine parts with position tolerances, as well as those that must be inspected with a defined angle of rotation.

The ICS 110 generates a binary image of the contour from the picture taken, and this image is then evaluated using the sensor's new evaluation algorithm.

An appropriate switching signal is provided to the machine control system if the optical inspection leads to an "OK" or "Object found" - just like that of a photoelectric switch.

The core components of the ICS 100 are its 2-D image recorder (a CMOS chip) with 320 x 320 active pixels and an integrated line processor, and the corresponding highspeed logic and signal processors. Integrated green-light LED illumination provides the best contrast, and homogeneous lighting within the monitoring window.

Object teach-in takes place at the touch of a button within a simple Teach-in menu, supported by the VSC 100 control and display module. The necessary device parameters, such as image resolution and the evaluation process required, are defined by the user.

Observation of the live image on the VSC 100 has proved particularly helpful and has considerably simplified the work involved in this. Factors such as glare, reflections, or a difficult background are immediately noticeable and can be taken into account.

In many applications glare, for example, can be targeted for the solution as a result of the CMOS architecture. After successful programming, the values are permanently saved in an EEPROM. When the teach-in process has been completed, the VSC 100 can be removed again and the ICS resumes autonomous operation.

In addition to checking contours, the ICS 110 offers other possible uses involving the inspection of shapes, the comparison of surfaces, the detection of glare, and object detection - as have already been carried out successfully by the ICS 100.

In many cases this 2-D sensor represents an economical alternative to PC-based image processing solutions or complex arrangements of conventional sensors.

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