UAV Identification Messaging to Prevent Response Data Collisions
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Solution Overview
Problem
Current systems lack effective identification and communication methods for unmanned aerial vehicles (UAVs), particularly for small drones, leading to difficulties in tracking and identifying responsible entities for criminal acts, and there is a need to prevent data collisions during communication processes.
Innovation Solution
A UAV detection apparatus and method using a unicast transmission scheme to prevent data collisions by transmitting identification information request messages via a broadcast scheme and receiving responses via a unicast scheme, allowing each UAV to determine a random transmission time to minimize power consumption and ensure stable identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a broadcast communication scheme is used to transmit identification information request messages to multiple UAVs, then communication efficiency is improved, but data collisions occur during response reception
Solution Approach 1:
The communication process is segmented into two distinct phases: a broadcast phase for transmitting request messages to multiple UAVs simultaneously, and a unicast phase for receiving individual response messages from each UAV. This segmentation separates the high-efficiency broadcast transmission from the collision-prone response reception, allowing each phase to use the most appropriate communication mode.
Solution Approach 2:
The communication scheme dynamically switches between broadcast and unicast modes based on the direction of communication. When transmitting requests from the detection apparatus to UAVs, broadcast mode is used for efficiency. When receiving responses from UAVs, unicast mode is used to prevent collisions. This dynamic adaptation optimizes both communication efficiency and reliability.
2Measurement precision
If continuous communication is performed with detected UAVs, then identification accuracy is improved, but power consumption increases
Solution Approach 1:
Instead of continuous communication, the system uses periodic action by implementing a structured identification protocol where communication occurs only at specific intervals and only when necessary. The detection apparatus transmits identification requests only when UAVs are detected, and UAVs respond only to these specific requests, rather than maintaining continuous communication. This periodic approach maintains identification accuracy while significantly reducing power consumption.
Solution Approach 2:
UAVs are designed to autonomously manage their power consumption by entering low-power states between identification requests and only activating their communication systems when they receive an identification request. This self-service approach allows UAVs to balance identification accuracy requirements with power conservation, as each UAV independently manages its own power state based on external triggers.
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 solution effectively identifies and differentiates between legitimate and illegitimate UAVs by using a unicast communication scheme to prevent data collisions, ensuring efficient and accurate identification and minimizing power consumption.
Implementation Method 1
transmitting a radar signal for detecting a UAV, based on a detection distance of the UAV detection apparatus, detecting a plurality of UAVs existing within the detection distance according to a radar signal reflected from each of the plurality of UAVs
Data Source
AI summary
An identification method and an unmanned aerial vehicle (UAV) detection apparatus are provided. The identification method, as a method for preventing a collision that may occur in a process of detecting and identifying a plurality of UAVs flying in the air, detects a plurality of UAVs in the air and determines a legitimacy of flight of each of the plurality of UAVs using an identification information request message.