Prototype 2 takes again the mechanics of prototype 1 except for the pole. The air is led towards the camera by a ventilation duct, the cable towards the camera passes inside the ventilation duct.

The major evolution was made by the integration of a measurement of luminosity in the field of the camera, then a catch of ambient luminosity. The interface of power was modified, and there was the addition of an interface board camera, on the level of the camera.

Photographs of the camera part.

The camera and its interface board are an interdependent unit, allowing a development facilitated. The interface board gathers the transmission of the control signals towards the camera, the power supply of the camera, the transfer of the analogical signals of measurements and the car-test part of the camera.

The selftest part of the camera for the moment was not checked and not validated.

The box is shown opposite.

This one contains a PC with the peripherals necessary to its operation (hard Disk, disk drive, embedded video controler).

The power suply and the interface boards are they also placed inside the box.

On the image opposite, one can observe the foot maintaining the two electronic boxes composing the system, the ventilation duct, an off-set pole, fixed on the sides of the conveyor belt and which maintains the camera part.

On this photograph, a luminous projector was placed for realize various tests. This one thereafter will be suppress because there is a self-fitting of the acquisition of the images.

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