Helicopter Radar Light Fixture Collision Avoidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Civil helicopter accidents often occur during take-off, maneuvering, and landing due to inadequate pilot situation awareness of obstacles and terrain, highlighting the need for an improved warning system to enhance pilot awareness.
Innovation Solution
A helicopter collision-avoidance system incorporating a radar and light module with a radar emitter, detector, and RF communication system, integrated into existing light fixtures on the helicopter, which emits and receives radar signals to detect obstacles and wirelessly transmit information to a receiver for alerting the pilot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If radar sensors are integrated into existing light fixtures, then device complexity is reduced and ease of manufacture is improved, but sensor coverage and detection capability may be limited by the fixed light fixture positions
Solution Approach 1:
The patent integrates radar sensors into existing light fixtures, making the light fixtures serve dual purposes: illumination and collision detection. This multi-functionality approach reduces the need for separate radar sensor mounting structures and simplifies the overall system implementation while utilizing the existing fixture positions for sensor placement
2Reliability
If multiple radar sensors are deployed to improve obstacle detection coverage, then measurement precision and reliability are improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple radar sensors into a single integrated system that shares common processing and control architecture. The sensors are merged with existing light fixture structures and communicate through a unified interface to the flight management system, reducing overall system complexity while maintaining multiple detection points for improved reliability
3Loss of information
If radar information is continuously transmitted to the pilot, then pilot situation awareness is improved, but energy consumption and information loss increase
Solution Approach 1:
The system implements periodic radar scanning rather than continuous transmission, pulsing the radar signals at intervals appropriate for the helicopter's speed and altitude. This periodic operation reduces energy consumption while maintaining adequate situation awareness by updating obstacle detection information at sufficient frequency
Solution Approach 2:
The system incorporates feedback mechanisms where radar return signals are processed and analyzed to provide selective information to the pilot. The feedback loop allows the system to adjust transmission frequency based on detected obstacle proximity and flight conditions, optimizing both energy usage and information provision to the pilot
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively enhances pilot awareness of obstacles and terrain, reducing the risk of accidents by providing real-time radar information and alerts, and can be retrofitted with minimal modifications, avoiding regulatory hurdles.
Implementation Method 1
a radar emitter configured to emit a radar signal; a radar detector configured to receive a radar return signal associated with reflections of the emitted radar signal that are reflected from an object
Data Source
Figure 1A~1B
Figure 2
Figure 3~4
AI summary
A helicopter collision-avoidance system is disclosed. An exemplary system includes at least one lamp, such as a light emitting diode (LED) lamp, an incandescent lamp, a halogen lamp, an infrared lamp, or the like; a radar emitter configured to emit a radar signal; a radar detector configured to receive a radar return signal associated with reflections of the emitted radar signal that are reflected from an object; and a radio frequency (RF) system configured to wirelessly transmit radar information associated with the received radar return signal to a radar information receiver configured to receive the wirelessly transmitted radar information. The light module is located at one of a plurality of light positions on an external surface of a helicopter.