An access management system includes a mobile device with a processor and a memory and a software platform including at least a processor and a memory. The software platform is configured to analyze data obtained from the mobile device and other devices connected to the software platform. Specifically, the software platform is operable to determine if an access key received, read, or captured by a mobile device matches an access key for an authorized account, object, device, or space for the mobile device, and to provide access to the mobile device if the access key received, read, or captured by the mobile device matches the authorized access key.

A status indicating light unit includes a power input terminal, an illumination circuit, comprising at least one LED, a continuous connection circuit, coupled to the illumination circuit and configured to effect a continuous power transfer from a power input terminal to the illumination circuit, a pulsed power reception circuit, coupled to the illumination circuit and configured to draw power from the power input terminal in a pulsed manner and to continuously emit power to the illumination circuit, and a mode selection switch adapted to couple the continuous connection circuit to the power input terminal in a continuous power draw mode, resulting in a continuous power draw pattern of the status indicating light unit, and adapted to couple the pulsed power reception circuit to the power input terminal in a pulsed power draw mode.

A status indicating light unit includes a power input terminal, an illumination circuit, comprising at least one LED, a continuous connection circuit, coupled to the illumination circuit and configured to effect a continuous power transfer from a power input terminal to the illumination circuit, a pulsed power reception circuit, coupled to the illumination circuit and configured to draw power from the power input terminal in a pulsed manner and to continuously emit power to the illumination circuit, and a mode selection switch adapted to couple the continuous connection circuit to the power input terminal in a continuous power draw mode, resulting in a continuous power draw pattern of the status indicating light unit, and adapted to couple the pulsed power reception circuit to the power input terminal in a pulsed power draw mode.

Many different types of systems are utilized or tasks are performed in a marine environment. The present invention provides various configurations of unmanned vehicles, or drones, that can be operated and/or controlled for such systems or tasks. One or more unmanned vehicles can be integrated with a dedicated marine electronic device of a marine vessel for autonomous control and operation. Additionally or alternatively, the unmanned vehicle can be manually remote operated during use in the marine environment. Such unmanned vehicles can be utilized in many different marine environment systems or tasks, including, for example, navigation, sonar, radar, search and rescue, video streaming, alert functionality, among many others. However, as contemplated by the present invention, the marine environment provides many unique challenges that may be accounted for with operation and control of an unmanned vehicle.

Many different types of systems are utilized or tasks are performed in a marine environment. The present invention provides various configurations of unmanned vehicles, or drones, that can be operated and/or controlled for such systems or tasks. One or more unmanned vehicles can be integrated with a dedicated marine electronic device of a marine vessel for autonomous control and operation. Additionally or alternatively, the unmanned vehicle can be manually remote operated during use in the marine environment. Such unmanned vehicles can be utilized in many different marine environment systems or tasks, including, for example, navigation, sonar, radar, search and rescue, video streaming, alert functionality, among many others. However, as contemplated by the present invention, the marine environment provides many unique challenges that may be accounted for with operation and control of an unmanned vehicle.

Systems and methods are described to provide navigational guidance to persons within crowded and unfamiliar environments such as aircraft cabins, stadiums, and theaters. An “activation arrangement” may be created to dynamically activate various lighting devices, personal electronic devices, and/or other devices to usher the person from a current location to a destination, such as a seat, entranceway, or lavatory. These techniques may be customized based upon existing conditions within the environment and/or based upon user-personalized settings to improve the comfort of persons in these environments.

Systems and methods are described to provide navigational guidance to persons within crowded and unfamiliar environments such as aircraft cabins, stadiums, and theaters. An “activation arrangement” may be created to dynamically activate various lighting devices, personal electronic devices, and/or other devices to usher the person from a current location to a destination, such as a seat, entranceway, or lavatory. These techniques may be customized based upon existing conditions within the environment and/or based upon user-personalized settings to improve the comfort of persons in these environments.

A propeller health monitoring system for an aircraft includes an aircraft having one or more propellers that includes light in or on them. The system includes one or more receptors mounted to a fuselage or a nacelle of the aircraft, each receptor having a sensor surface which is able to detect a position for each light beam crossing over the sensor surface as the propeller rotates, such that the receptor generates a signal that is indicative of the position as a measure of blade tip trajectory for each passing propeller blade The system also includes a processing unit which analyses the signals from the receptor to determine health of the propeller blades of the one or more propellers based on where the beams of light from the propeller blades have crossed over the sensor surface.

A propeller health monitoring system for an aircraft includes an aircraft having one or more propellers that includes light in or on them. The system includes one or more receptors mounted to a fuselage or a nacelle of the aircraft, each receptor having a sensor surface which is able to detect a position for each light beam crossing over the sensor surface as the propeller rotates, such that the receptor generates a signal that is indicative of the position as a measure of blade tip trajectory for each passing propeller blade The system also includes a processing unit which analyses the signals from the receptor to determine health of the propeller blades of the one or more propellers based on where the beams of light from the propeller blades have crossed over the sensor surface.

An exterior aircraft lighting device comprises: at least one light source; an optical element having a light entry side facing the at least one light source and a light exit side and being configured for modifying light emitted by the at least one light source; at least one photo detector, which is configured and arranged for detecting a portion of the light emitted by the at least one light source, which is reflected by the light entry side of the at least one optical element, the photo detector providing a detection value, representing the amount of detected light; and a control and evaluation unit which is configured for evaluating the state of wear of the at least one light source based on the detection value provided by the at least one photo detector.