UAV Straight-Line Navigation With Real-Time Route Adjustment
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Solution Overview
Problem
Existing UAV control methods either require manual operation for small plots, leading to deviations, or need high-precision pre-surveying for larger tasks, lacking real-time adaptability during operations.
Innovation Solution
A method allowing UAVs to start from a defined position and fly along a straight line, with the ability to receive route adjustments via a remote control apparatus, combining manual fine adjustments with automatic navigation to correct deviations and adapt to changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control is used to control the UAV to fly along a trajectory, then the operator can flexibly control the UAV in small plot operations, but the UAV easily deviates from the flight route when performing slightly larger plot tasks
Solution Approach 1:
The patent divides the control process into two segments: automatic navigation for maintaining the flight route and manual adjustment for real-time corrections. The UAV automatically follows the pre-set trajectory while the operator can intervene to adjust the route when deviations occur, combining the precision of automatic control with the flexibility of manual operation.
Solution Approach 2:
The system dynamically switches between automatic navigation mode and manual adjustment mode based on operational needs. The control mechanism is not static but adapts to the situation, allowing the UAV to automatically follow the route under normal conditions and switch to manual control when route adjustments are needed, resolving the contradiction between automation precision and manual flexibility.
2Measurement precision
If a pre-set route is uploaded to the ground end for automatic navigation, then the operation is accurate and does not require people to participate, but the technology cannot adapt to actual operation changes in real-time
Solution Approach 1:
The patent implements a feedback mechanism where the operator monitors the UAV's flight status in real-time and can send adjustment instructions to modify the flight route when actual operation changes occur. This feedback loop enables the system to adapt to real-time conditions while maintaining the precision of automatic navigation, resolving the contradiction between pre-set route accuracy and real-time adaptability.
Solution Approach 2:
The navigation system is designed to be dynamic rather than static. While the base route is pre-set for accuracy, the system allows real-time modifications through operator input, making the route adaptable to changing operational conditions. This dynamic characteristic enables the system to maintain precision while gaining flexibility.
3Measurement precision
If pre-surveying and mapping are conducted in advance for automatic route navigation, then the operation accuracy is improved, but the operation process becomes complex and time-consuming
Solution Approach 1:
The patent performs the complex surveying and mapping work in advance as a preliminary action, storing the route data for automatic navigation. This preliminary preparation, while time-consuming, is done only once and enables subsequent operations to proceed efficiently with high precision without repeated surveying, resolving the contradiction between initial preparation time and operational efficiency.
Solution Approach 2:
The system performs surveying and mapping to a higher precision than strictly necessary for basic navigation, creating a robust pre-set route that can handle various operational conditions. This excessive precision in preliminary work reduces the need for frequent adjustments during operation, thereby reducing overall time loss despite the initial investment in detailed surveying.
Data Source
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AI summary
A method and apparatus for controlling the flight of an Unmanned Aerial Vehicle (UAV) are provided. The method includes: determining a starting flight position where a UAV is parked currently and a nose direction of the UAV (101); starting off from the starting flight position, and flying along a straight line in the nose direction (102); and when receiving a route adjustment instruction during the flight of the UAV, adjusting an air route of the UAV according to the route adjustment instruction (103). During the flight, an operator can correct an air route via a remote control apparatus without surveying and mapping when detecting that the UAV is flying off course; and the operator can make the UAV precisely fly along a desired straight line by means of simple operations, thereby simplifying an operation process and promoting the adaptability to changes of the UAV.