Abstract:
The invention provides a method of and an apparatus for transmitting data, in particular in aircraft, with wireless transmitting and receiving units which are operated on an operating frequency of more than 30 GHz and preferably in a frequency range of between 56 GHz and 64 GHz. Adverse health effects on people and signal interference phenomena are reduced and the method and the apparatus allows broadband data transmission independently of spatial configurations.
Abstract:
The disclosed embodiments relate to a power supply network with integrated undervoltage protection for the energised consumers in a passenger aircraft having multiple consumers, with a power supply having multiple output connectors, wherein each consumer is connected to one of the multiple output connectors via a main supply wire, wherein each of the multiple consumers includes at least one individual load, each of which is designed for a predetermined supply voltage range. In order to ensure that the power consumption of individual consumers in a passenger aircraft power supply network is only limited relative to the overall power output to the extent that is absolutely necessary according to the requirements of overriding general conditions, and at the same time to minimise the corresponding weight of the cables in the aircraft, each of the multiple consumers according to the invention includes a voltage sensor for recording the supply voltage and a load controller, wherein the power draw of at least one individual load of the respective consumer is reduced when the supply voltage at the respective consumer falls below the preset minimum value.