InnRet is a project funded through the National Aerospace Research Program V (LufoV-2), between January 2016 to September 2018. The main objective of the project is to develop a demonstrator which enables the operator to control the rescue winch via wireless data-link. This will improve the control capabilities of helicopter rescue winch operations under extreme conditions. The project is conducted with several project partners, namely:
In emergency situations and bad weather conditions, both the winch operator and the pilot have difficulties to control the winch. Furthermore, they face difficulties estimating the height of the load above ground, due to a poor view and difficulty in communication between the rescuer and the operator. These conditions might cause loss of control and result in accidents. Goal of this project is to improve the control of the winch in such situations via wireless data-link between the rescuer and the winch controller. Using this link, the rescuer gains capability to control the winch swiftly and accurately without adding any additional cables to the system. The trend of substitution mechanical controllers by electrical ones enables simpler introduction of wireless data communication capabilities for the electrical rescue winch manufactured by Jenoptik.
One of the tasks of the Institute of Flight Systems at DLR is the simulation of the wireless data communication system to assess the interferences on the data-link. The environmental factor models published by the International Telecommunication Union (ITU) are used to assess the effects of environmental disturbance and to examine the safety and reliability of the data-link. Furthermore, functional test plans will be developed and performing functional tests will be performed in a new test facility for helicopter winches to assess the data-link quality and Electromagentic Compatibility (EMC).