This project belongs to a IBEROEKA project and it was developed in two different phases.
Phase I: Proof Of Concept
The goal of this phase is manufacturing an HW platform in a fast way, using open hardware in order to validate that an image sensor NIR (Near InfraRed) is able to extract useful information when the image is illuminated with LEDs with different wavelengths.
The open hardware selected is the raspberry pi 3B with an optimized embedded Linux system generated by buildroot. The camera selected is the Point Grey Camera (Nowadays Flir) FL3-U3-13Y3M-C. This camera has the sensor VITA 1300 by On Semiconductor with global shutter and a very powerful spectral response curve. The camera comes with an SDK called Flycapture2 which makes very easy to make image acquisitions, using the USB 2.0 port of the raspberry pi 3B.
The results were very satisfactory.
Phase II: prototype
This goal of phase II was developed a portable device takes into account the industrialisation of the final product. The final product needs a high processing capacity, so the processor selected is i.MX6 by NXP. The camera selected was a XIMEA module camera, the model MQ013RG-ON-BRD.
The embedded Linux system was generated by buildroot in order to optimize the memory.
Other features:
- Li-Ion batteries with Charger.
- LCD 7".
- Waterproof case.
I was in charge of the whole project: electronic design (schematics and PCB), generating the embedded Linux system, as well as developing everything for validating and testing the whole platform.
Used technologies: Altium Designer, C and buildroot.