UAV Spraying Route Return Planning for Energy-Saving Resume Points

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Solution Overview

Problem

Existing UAV spraying operation technologies lack an intelligent strategy for determining return points, often directing UAVs to non-spraying segments, which wastes battery power and leads to inefficient operations.

Innovation Solution

A method and device for planning UAV spraying operations that display a path with operation and non-operation segments, determining an interruption position, and identifying projection points on spraying segments for return points, avoiding non-spraying segments to optimize energy use and align with user expectations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the UAV returns to projection points on non-spraying segments as return points, then the route planning is simple, but it wastes battery power and reduces spraying efficiency

Engineering Contradiction:
Improveroute planning complexityVSAvoidbattery power consumption
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent applies local quality by differentiating between spraying segments and non-spraying segments in the route. Return points are selectively placed only on spraying segments based on their specific characteristics (spraying width, speed, area), rather than uniformly using projection points on all segments. This localized approach ensures the UAV returns to positions that contribute to effective spraying while avoiding wasteful returns to non-spraying areas.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If the UAV returns to projection points on non-spraying segments, then the return point determination is straightforward, but it fails to meet user expectations and reduces operational efficiency

Engineering Contradiction:
Improvereturn point determination easeVSAvoidspraying operation efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent changes the parameters used for return point determination from simple geometric projection to a multi-factor analysis including spraying width, spraying speed, segment area, and remaining unsprayed area. This parameter transformation maintains operational simplicity while dramatically improving spraying efficiency by ensuring returns occur only at positions that advance the spraying objective.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If the UAV follows the existing return point strategy, then the implementation is simple, but it leads to inefficient spraying operations and increased energy consumption

Engineering Contradiction:
Improveimplementation simplicityVSAvoidenergy waste
Core Design Contradiction:
Ease of manufactureVSLoss of energy

Solution Approach 1:

The patent applies preliminary action by pre-calculating and marking optimal return points on spraying segments before the UAV executes the route. The system analyzes segment characteristics in advance, identifies suitable return positions based on spraying parameters, and prepares this information for real-time use. This preliminary preparation simplifies real-time decision-making while avoiding energy-wasting returns to inappropriate locations.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20240288879A1Spraying operation planning method and device, control terminal, and storage medium
Publication Date: 2024.08.29 SZ DJI TECH CO LTD
  • US20240288879A1 patent drawing
  • US20240288879A1 patent drawing
  • US20240288879A1 patent drawing

AI summary

A method and device for planning spraying operations, a control terminal and storage medium are provided. The method includes: obtaining and displaying a flight route of a UAV, and controlling the UAV to execute a spraying operation along the flight route, where the flight route includes a plurality of segments including spraying segments and non-spraying segments; obtaining an interruption position of an interruption segment; based on a position of the UAV, determining whether there exists a projection position within the first preset number of spraying segments that have not been executed after the interruption segment without determining whether there exists a projection position of the UAV within the non-spraying segments; and displaying indicator(s) to indicate the position of the return position(s) on the flight route. The present disclosure can meet the user's expectations and conserves electrical energy consumption, thereby improving the efficiency of executing spraying operations.