Target Tracking Navigation Using Solicitation and Feedback Signals
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Solution Overview
Problem
Existing systems for target tracking by movable objects, such as unmanned aerial vehicles (UAVs), face challenges in accurately acquiring and maintaining tracking of targets, especially in environments with multiple potential targets or changing conditions, and lack effective navigation guidance for crowd control or evacuation.
Innovation Solution
The system employs an initialization signal to initiate target acquisition, followed by a solicitation signal that directs the target's action, with confirmation and status signals to ensure accurate tracking, and provides navigation guidance using visual, audio, or electronic signals to assist the target in following instructions, utilizing sensors like cameras, infrared, or ultrasound to detect and respond to the target's actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional passive tracking methods are used, then the system can operate with simpler equipment, but the target acquisition reliability deteriorates in environments with multiple potential targets
Solution Approach 1:
The system performs preliminary actions by transmitting solicitation signals to potential targets before formal acquisition, causing targets to perform preliminary actions (such as moving to designated positions or displaying identification patterns) that enable the tracking system to distinguish and confirm the correct target in advance, thereby improving acquisition reliability in complex environments
Solution Approach 2:
The system implements feedback mechanisms where targets provide status signals back to the tracking system indicating their compliance with instructions, allowing the system to verify target identity and maintain reliable tracking by continuously monitoring target responses and adjusting tracking parameters accordingly
2Measurement precision
If the system transmits multiple types of signals for target interaction, then the target acquisition accuracy improves, but the energy consumption increases
Solution Approach 1:
The system uses periodic transmission of solicitation signals and status signals rather than continuous transmission, maintaining target identification accuracy through regular intervals of interaction while reducing overall energy consumption by allowing periods of lower activity between signal exchanges
Solution Approach 2:
The system changes signal parameters such as transmission power, frequency, and duration based on tracking conditions and target response quality, using higher power or more frequent signals only when necessary to maintain identification accuracy, thereby optimizing the balance between precision and energy consumption
3Stability of the object's composition
If the system provides continuous navigation guidance to the target, then the tracking stability improves, but the complexity of the control system increases
Solution Approach 1:
The system enables self-service tracking by having targets autonomously follow navigation guidance signals and perform corrective actions based on status feedback, reducing the need for complex external control mechanisms while maintaining tracking stability through the target's own compliance with guidance instructions
Data Source
AI summary
A method for acquiring a target for a movable object includes providing a solicitation signal in response to receiving an initialization signal, detecting an action by one or more potential candidates in response to the solicitation signal, and identifying a target from the one or more potential candidates based on the detected action.