Drone Battery Level Verification for Coulometer Reset Control
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Solution Overview
Problem
Existing battery level metering chips inaccurately estimate remaining capacity during abnormal use or long-term use, leading to potential drone crashes.
Innovation Solution
A battery level verification method involving a battery sampling component, coulometer, and controller to obtain and verify battery data, perform reset operations, and generate verification information to ensure accurate battery level estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a battery level metering chip is used to estimate remaining capacity, then the estimation is relatively accurate during normal use, but the accuracy deteriorates during abnormal use or long-term use
Solution Approach 1:
The patent implements a feedback mechanism where the controller continuously monitors battery parameters (voltage, current, temperature) and compares the metering chip's estimates with actual measurements. When deviations exceed thresholds, the system triggers recalibration or alternative calculation methods, ensuring sustained accuracy under varying conditions
Solution Approach 2:
The system dynamically adjusts measurement and calculation parameters based on battery state. Different algorithms are selected based on operating conditions (normal/abnormal), and measurement frequencies are adjusted according to battery cycle count and environmental factors, maintaining precision across the operational spectrum
2Productivity
If the battery level is displayed without verification, then the display is simple and responsive, but the reliability deteriorates due to potential misjudgment
Solution Approach 1:
The system performs preliminary verification of battery level data before display. The controller validates measurements against predefined thresholds and operational parameters in advance, filtering out unreliable data before it reaches the display interface, thus preventing misjudgment while maintaining responsiveness
Solution Approach 2:
The controller acts as an intermediary between the battery system and display interface. It verifies and validates battery level information before transmission to the display, adding a reliability layer without significantly impacting response time through optimized verification protocols
3Measurement precision
If the coulometer performs reset operation frequently, then the battery level accuracy is maintained, but the loss of time increases due to repeated recalibration
Solution Approach 1:
The reset operation frequency is made dynamic rather than fixed. The system adjusts recalibration timing based on actual battery conditions, performing resets only when necessary (e.g., after abnormal events, extended operation periods, or detected deviations), thereby maintaining accuracy while minimizing time loss
Solution Approach 2:
Instead of continuous or frequent resetting, the system implements periodic verification with resets triggered by specific conditions. Regular but not excessive recalibration cycles are established, balancing accuracy maintenance with operational continuity and time efficiency
Data Source
AI summary
The present disclosure relates to battery technologies, and specifically, to a battery level verification method, a controller, a battery apparatus, and a drone. The battery level verification method includes: obtaining battery sampling data and a first battery level; determining a target battery level according to the battery sampling data; generating first battery level verification information according to the target battery level and the first battery level; in response to the first battery level verification information indicating that the first battery level is unreliable, controlling a coulometer to enter a reset state, wherein the coulometer calculates, in the reset state, a second battery level of a battery according to the battery sampling data; and generating second battery level verification information according to the second battery level and the target battery level. This method verifies battery level reliability using battery status, preventing misjudgment, and improving accurate and reliable coulometer display.