Platform Approach Waypoint Standardization for Unified Helicopter Guidance
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Solution Overview
Problem
Current flight management systems for aircraft approaching offshore platforms or urban altiports face challenges in unifying different types of approaches, leading to inefficiencies and safety concerns due to lack of uniformity in approach profiles and inadequate regulation coverage.
Innovation Solution
A method is developed to manage various types of approaches in four dimensions, including defining and configuring initial parameters for key waypoints like IAF, IF, FAF, and MAP, allowing for unified guidance and adaptable safety protocols, using a flight management system that can handle spatial and temporal dimensions, and display piloting instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different types of approaches (OFFSET, DELTA, OSIO) are managed separately according to current regulations, then each approach type can be optimized for its specific requirements, but the lack of uniformity in approach profiles increases development and training costs and creates human factor problems
Solution Approach 1:
The patent applies universality by creating a single flight management system capable of handling multiple approach types (OFFSET, DELTA, OSIO, and custom approaches) through a unified methodology. The system uses standardized four-dimensional trajectories and common waypoint definitions (IAF, IF, FAF, MAP) to manage diverse approach procedures, eliminating the need for separate management systems for each approach type while maintaining full adaptability to different operational requirements
Solution Approach 2:
The patent employs parameter changes by introducing a standardized set of configurable parameters that define approach characteristics across all approach types. By standardizing parameters such as waypoint coordinates, altitude profiles, speed constraints, and timing parameters, the system can adapt to different approach types through parameter configuration rather than requiring fundamentally different management approaches, thereby reducing complexity while maintaining versatility
2Reliability
If approach procedures are defined with standardized four-dimensional trajectories and unified waypoint definitions, then uniformity and safety are improved, but the ability to handle specialized approach variations may be reduced
Solution Approach 1:
The patent applies dynamics by creating a flexible framework where the standardized four-dimensional trajectory methodology can dynamically adapt to different approach requirements. The system allows configuration of various approach types (OFFSET, DELTA, OSIO) and custom approaches by adjusting parameters within the unified methodology, enabling the system to maintain standardized safety-critical elements while accommodating specialized variations through dynamic parameter adjustment rather than rigid fixed procedures
3Reliability
If current regulation-based approach methods are used, then compliance with existing standards is maintained, but the limited number of described approaches and lack of systematic unification restricts operational efficiency
Solution Approach 1:
The patent applies preliminary action by pre-defining standardized waypoint structures (IAF, IF, FAF, MAP) and four-dimensional trajectory frameworks that can be systematically applied to various approach types. This preliminary standardization enables efficient planning and execution of approaches while ensuring regulatory compliance, as the unified methodology incorporates all required regulatory elements in a systematic framework that can be efficiently implemented across different operational scenarios
Data Source
AI summary
A method to manage approaches to a platform (in particular at sea and operated by a helicopter) comprises the steps of receiving initial parameters and determining four particular waypoints (called IAF, IF, FAF and MAP). These flight plan points respectively determine the starting point of the approach procedure, the intermediate point corresponding to the end of the initial alignment and to the start of the capture of the final approach axis, the starting point of the final approach, and the point of decision to terminate the approach or initialize a go-around. Different developments describe different types of approaches that can be achieved by this method, the management of the descent and speed profiles, the management of the safety distances and the management of the display of the piloting instructions. Software and system aspects are described.