In June 2017, the Innovation Centre of University of Technology of Compiègne (France) is proposing a project for the creation of a touch table.Â
I volunteered with Guillaume Burosse and Gaston Onana, two schoolmates, to work on the project.
We envisioned a versatile table that could be useful for various people and situations within the Innovation Center.
After studying various existing touchscreen technologies, especially those used in DIY projects, we opted for infrared technology for the table. The size of the sensors is smaller, allowing more freedom for creative design, and the technology is compatible with large surfaces. Since the table required a large screen, we faced a technical constraint.
Main resource for technical development : https://www.instructables.com/id/Touch-Screen-Coffee-Table-DIY-With-32-TV-and-Low-C/
The part connected to a computer allows for multimedia use. The screen can be raised if necessary to allow multiple people to comfortably view the screen (movies, video games, etc.). Pneumatic jacks are used to raise the screen after pressing the button, so the user doesn't have to exert any effort.
The rest of the table surface can be used for work like a conventional table or to place your coffee.
We built the prototype with standard materials and components. Cutting and welding were carried out in the UTC workshops.
The mechanical part of the prototype is finished. The electronic part will be finished by another group or simplified.
Technically, one of the difficult points was to find the same sensor as the one used in the reference tutorial. Indeed, it is a question of "hacking" the sensor of a scanner to convert it into an infrared receiver. He confirmed that different architectures existed for these sensors and that it was difficult to know if they matched before disassembling the scanner. Otherwise it would be possible to have a touch with a series of individual infrared receivers but the resolution would be less good. One scanner sensor is equivalent to more than a hundred individual sensors.
In the end, 'Smartable' is an unconventional table, fitting well within its geeky engineering school environment yet maintaining a sleek and understated design.
