Battery Authentication Using Electrical Parameter Matching
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Solution Overview
Problem
The rapid development of mobile User Equipment has highlighted the importance of battery security, as imitation batteries can damage motherboards or cause explosions, posing safety risks due to their inability to support Quick Charge modes and lack of original safety protocols.
Innovation Solution
A method and device for identifying batteries by detecting electrical parameters, determining similarities with preset cells, and controlling charging and discharging based on matching relations to ensure safety and authenticity, using a battery protecting circuit with a one-time burning counter and encryption algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If imitation batteries are used to reduce cost, then manufacturing cost is reduced, but battery safety deteriorates
Solution Approach 1:
The patent applies preliminary action by detecting electrical parameters (impedance, capacity, voltage) of the battery before charging operations begin. The system pre-evaluates whether the battery meets safety criteria by comparing detected parameters against preset thresholds, and only permits charging when safety conditions are satisfied. This prevents unsafe batteries from being charged in the first place.
Solution Approach 2:
The patent introduces an intermediary detection system that acts as a mediator between the battery and charging process. The detection module measures electrical parameters and serves as an intermediate evaluation layer, comparing actual battery characteristics against preset standards before allowing charging to proceed. This intermediary mechanism filters out unsafe batteries without requiring physical inspection.
2Device complexity
If battery detection and identification methods are simplified, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent segments the battery detection process into three distinct measurement dimensions: impedance detection, capacity detection, and voltage detection. Each dimension independently evaluates a specific electrical parameter, and the system combines results from all segments to form a comprehensive safety assessment. This segmented approach maintains high measurement precision while keeping each individual detection module relatively simple.
Solution Approach 2:
The patent employs parameter changes by measuring multiple different electrical parameters (impedance, capacity, voltage) rather than relying on a single complex measurement. By changing the type of parameter being measured across different detection modes, the system achieves comprehensive battery identification through simple, repeatable measurements of different physical quantities.
Data Source
AI summary
Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for identifying a battery. The method may be applied to electronic equipment. The electronic equipment may detect an electrical parameter of a cell under test in the battery of the electronic equipment. The electronic equipment may also determine a similarity between the cell under test and a preset cell according to the electrical parameter, the preset cell meeting a first preset matching relation with the electronic equipment. The electronic equipment may further determine, according to the similarity, whether the cell under test meets the first preset matching relation with the electronic equipment, acquiring a determination result.