Specific embedded systems demonstrated at embedded world

The solution from MAZeT delivers consistent colour, colour temperature, and brightness levels, even for spectrally diverging LEDs. The corresponding wireless LED control solution designed by MAZeT relies on mobile devices.

“Our LED-based RGBx light box demonstrates how a smartphone or tablet can be used to precisely control the colour, colour temperature, and brightness,” explains Frank Krumbein, Product Manager for colour and Spectral Sensoring at MAZeT.

This kind of wireless connection makes it possible to control multiple light boxes in parallel. Either all boxes light up in a specific colour mixed according to the RGBW scheme, or a scenario with different colours can be implemented. When the same colour is displayed on all light boxes, the human eye does not register any differences in colour.

The colour also remains stable even when operating conditions change or if LEDs of various types or from different bins are used. A true-colour colour sensor of the JENCOLOR product range ensures that the colour remains constant. The sensor is complemented by wireless transmission technology and Android-based operating software. MAZeT offers the electronics and control system to luminaire manufacturers and system integrators as series-produced OEM modules.

The development project’s objective was to design a photometer able to measure at great accuracy all parameters of colours that are in the visible spectrum (after adding a reagent) with just a single light source and sensor. PrimeLab’s JENCOLOR-Multiple-colour-Sensor integrates all filters on the chip as opposed to previous devices, and its seven open channels measure the complete colour spectrum at a level of quality close to that of a spectrometer.

The sensor determines the precise colour value and calculates the measurement value based on stored tables. Display messages instruct users on what chemicals need to be added to obtain the desired target values in the water. MAZeT developed the hardware and software incl. the multi-spectral sensor and mass-produces the board.

MAZeT also presented a development called ‘Scan Generator’ – the module is used in a repair unit of interference exposure masks for semiconductor wafers. The customer project involved an analogue data capture and evaluation unit with PCIe interface and driver. The realised PCI-Express plug-in card generates electron beam deflection signals and collects chronologically parallel image information made available via a software driver.