Full-LED lighting system for aircraft cabins
LEDs have numerous advantages. They ensure greater colour fidelity, show almost no changes in brightness, reduce weight by around 30 percent, consume around 50 percent less power and last much longer. This leads to improved lighting quality for passengers when dimming and ensures a pleasant on-board atmosphere and therefore greater comfort for passengers. HEITEC developed an adapter device that controls the LEDs. The requirements were developed together with the customer.
Realisation
HEITEC was responsible for the development of the device hardware, the housing and the embedded software. Particular attention was paid to the strict requirements of the aircraft industry in terms of product safety and the specific specifications - for example in terms of weight optimisation.
The adapter electronics are responsible for communication between the central computer and the lighting units, controlling the LEDs and supplying power to the module. In order to reduce the amount of cabling required, a serial bus system was implemented in the system, which converts the commands from the central computer into commands for controlling the lighting units via Serial Peripheral Interface (SPI). A maximum of 36 units per device, distributed over eight channels, can be controlled.
HEITEC carried out the complete integration of the hardware and software, as well as the necessary qualification in accordance with aviation quality standards.
- Development of the electronics and housing in accordance with DO254
- Development of the embedded software in accordance with DO178B
Qualification in accordance with DO160
Customer benefits
- One point of contact from development to qualification
- Reduction of development risk through the use of experienced electronics specialists with aviation experience
