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Image Sensor For Filling Wine Bottles

Hackaday came up with an interesting and clever solution to a problem that a wine bottling company in New Zealand was having. They developed an image sensor that can determine if a wine bottle is filled or not.

A wine bottling company in New Zealand got in touch with [Boz] to solve a problem. They needed a way to automatically determine if a wine bottle was filled or not. What he came up with is a very simple yet very effective fill level sensor that can scan thousands of bottles an hour.

There were a few design decisions that went into the construction of this wine bottle sensor. [Boz] could have used a VGA camera sensor, but given the speed of the bottling line (half a meter per second), pushing all those pixels to a computer and doing real-time image analysis would be difficult. [Boz] settled on a much simpler solution – a 1×128 linear CCD analog image sensor. With a PIC microcontroller, this allows the device to check multiple bottles per second, calculate if the bottle is full or not (or overfilled), and send a ‘pass’ or ‘reject’ signal to the rest of the line.

The rest of the assembly is fairly straightforward with an LED backlight providing the illumination for the CCD and a Bluetooth transmitter for checking out the machine’s settings. On the bottling line, the device has 99% accuracy for both red wines in dark bottles and whites in green bottles.

Read more.

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