Abstract: Disclosed are systems, methods, and non-transitory computer-readable medium for providing a safe landing for a vehicle. The method may include: displaying, on one or more displays, a vehicle, an intended landing zone, and a real-time flight path of the vehicle as the vehicle approaches the intended landing zone; receiving data related to one or more of the vehicle, the flight path of the vehicle, the intended landing zone, and an obstacle; determining the proximity of the vehicle relative to the center of the intended landing zone based on the received data; displaying the proximity of the vehicle relative to the center of the intended landing zone; displaying the obstacle when present; displaying an alert when the vehicle deviates in proximity to the center of the intended landing zone and/or approaches the obstacle; and upon determining a failure to respond to the alert computing flight controls to modify landing.

Abstract: Techniques for allowing a vehicle equipped with at least one radar to take-off and land using radar return images of a landing site. The at least one radar generates radar return image(s) of the landing site, specifically of reflective symbols attached to the landing site, allowing the vehicle to orient itself to the landing site and providing information specific to the landing site. Position and velocity in relation to a landing site can be determined using at least one radar and a guidance and landing system. Using the position and velocity information, the guidance and landing system can guide the vehicle to and from the landing site and/or determine whether an obstacle requires the use of an alternate landing site.

Abstract: Techniques for allowing a vehicle to detect and avoid obstacles comprises at least one radar and a navigation system including a three-dimensional map database. The at least one radar generates radar return image(s) which can be compared by the navigation system to the three-dimensional map to determine a three-dimensional position of the vehicle. Based upon position determination, the navigation system can guide the vehicle to a destination whilst avoiding obstacles. If the vehicle also includes a Global Navigation Satellite System (GNSS) receiver, such techniques are desirable when the GNSS receiver is unable to provide accurate position data, which can occur in urban environments where obstacles are numerous.

Abstract: Techniques for allowing a vehicle equipped with at least one radar to take-off and land using radar return images of a landing site. The at least one radar generates radar return image(s) of the landing site, specifically of reflective symbols attached to the landing site, allowing the vehicle to orient itself to the landing site and providing information specific to the landing site. Position and velocity in relation to a landing site can be determined using at least one radar and a guidance and landing system. Using the position and velocity information, the guidance and landing system can guide the vehicle to and from the landing site and/or determine whether an obstacle requires the use of an alternate landing site.

Abstract: Techniques for allowing a vehicle to detect and avoid obstacles comprises at least one radar and a navigation system including a three-dimensional map database. The at least one radar generates radar return image(s) which can be compared by the navigation system to the three-dimensional map to determine a three-dimensional position of the vehicle. Based upon position determination, the navigation system can guide the vehicle to a destination whilst avoiding obstacles. If the vehicle also includes a Global Navigation Satellite System (GNSS) receiver, such techniques are desirable when the GNSS receiver is unable to provide accurate position data, which can occur in urban environments where obstacles are numerous.

Abstract: A redundant communication network is provided. A first set of network interface controllers form at least a first ring communication loop. At least one of the network interface controllers provide a gateway to at least one first client unit. The first set of network interface controllers include a first master network interface controller and a first backup master interface controller. A second set of network interface controllers form at least a second communication loop. At least one of the network interface controllers provide a gateway to at least one second client unit. The second set of network interface controllers include a second master network interface controller and a second backup master interface controller. The first master network interface controller and the first backup master interface controller are in a cross-side linked commutation configuration with the second master network interface controller and the second backup master interface controller.

Abstract: In a system that uses a switched network and virtual links (for example, an AFDX, TT-ETHERNET, or TT-Gigabit ETHERNET switched ETHERNET network), the system is configured so that, for at least one virtual link, the end system that sources frames for that virtual link can change (for example, when an end system that was previously sourcing frames for that virtual link fails). The switches used in such a system are configured to be able to accept frames if there is such a change.

Abstract: In a system that uses a switched network and virtual links (for example, an AFDX, TT-ETHERNET, or TT-Gigabit ETHERNET switched ETHERNET network), the system is configured so that, for at least one virtual link, the end system that sources frames for that virtual link can change (for example, when an end system that was previously sourcing frames for that virtual link fails). The switches used in such a system are configured to be able to accept frames if there is such a change.

Abstract: Methods and systems for a scalable self-checking processing platform are described herein. According to one embodiment, during an execution frame, a first processing element executes both a high-criticality application and a first low-criticality application. During that same execution frame, a second processing element executes both the high-criticality application and a second low-criticality application. The high-criticality application output from the first processing element is compared with that from the second processing element before the next execution frame, and a fault occurs when the output does not match. The low-criticality application is not duplicated or compared. This and other embodiments allow high-criticality applications to be appropriated checked while avoiding the over-dedication of resources to low-criticality applications that do not warrant self-checking.