Battery Cell Wireless Security via Location Verification
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Solution Overview
Problem
Existing battery cell systems face challenges in efficiently managing wireless communication between cells, particularly in maintaining effective RF links and preventing unauthorized communication from outside the battery pack, which affects the reliability and security of the system.
Innovation Solution
The implementation of a battery system with a substrate-mounted circuitry that includes antennas, a microprocessor, and switches, which sequentially activates connections to establish and maintain communication within a predefined range, preventing communication when the signal strength indicates a location outside this range, ensuring secure and efficient wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication is enabled between battery cells, then communication efficiency and data transmission are improved, but security risks and unauthorized access from external transceivers increase
Solution Approach 1:
The system preemptively establishes location verification mechanisms and communication authorization protocols before any communication occurs. The transceiver determines the location of external devices and compares it against authorized locations, preventing unauthorized communication attempts before they can compromise system security.
Solution Approach 2:
The patent introduces an intermediary location verification system that acts as a mediator between the battery cell system and external transceivers. This intermediary layer verifies locations and authorization status, allowing legitimate communication while blocking unauthorized access without affecting the core communication functionality.
2Object-affected harmful factors
If location verification is implemented to prevent unauthorized communication, then security is improved, but system complexity and computational requirements increase
Solution Approach 1:
The transceiver is designed to perform multiple functions: wireless communication, location determination, location verification, and authorization checking. By consolidating these functions into a single multi-functional component, the system achieves enhanced security without proportionally increasing overall system complexity.
Solution Approach 2:
The patent combines the communication transceiver, location determination circuitry, and authorization verification logic into an integrated system. This merging of functions reduces the number of separate components and interfaces, thereby managing complexity while maintaining comprehensive security functionality.
3Measurement precision
If multiple antennas are used to determine location, then location accuracy is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The system uses multiple antennas to determine location, employing partial action by selectively activating or utilizing subsets of available antennas based on communication needs and location determination requirements. This approach achieves sufficient location accuracy without always requiring full utilization of all antenna elements, thereby managing complexity.
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
This solution enhances the reliability and security of wireless communication within the battery pack by ensuring that only authorized cells communicate effectively, reducing inefficiencies and potential security threats from external transceivers.
Implementation Method 1
A battery system has a cell including a container, a substrate mounted to the container, and circuitry on the substrate defining antennas, a microprocessor, switches, and a transceiver
Data Source
AI summary
A battery system has a cell including a container, a substrate mounted to the container, and circuitry on the substrate. The substrate defines antennas, a microprocessor, switches, and a transceiver. The microprocessor sequentially activates the switches to respectively connect the transceiver to the antennas to establish a location relative to a transmitter, and prevents communications with the transmitter responsive to the location falling outside a predefined range.