BLE Mobile ID Authentication With Low-Power Beacon Validation
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Solution Overview
Problem
Existing mobile ID transmitter authentication systems in physical units, such as vehicles, face challenges in minimizing power requirements while maintaining functionality, particularly due to the need for precise position determination and energy efficiency in electronic locking systems.
Innovation Solution
The method employs Bluetooth Low Energy (BLE) beacons with short identifiers to initiate communication between the ID transmitter and access control unit, allowing for energy-efficient authentication by sending beacons with a predetermined identifier, followed by sensor data validation to ensure accurate positioning and secure authentication, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If radio communication is carried out at recurring intervals for position determination and authentication, then position determination accuracy and authentication reliability are improved, but power consumption increases
Solution Approach 1:
The patent implements periodic beacon transmission at configured intervals instead of continuous communication. The ID transmitter sends beacons containing position information and authentication data at predetermined time intervals, allowing the system to maintain position determination accuracy and authentication capability while significantly reducing power consumption compared to continuous communication.
Solution Approach 2:
The patent extracts and transmits only essential information in the beacon messages, specifically position coordinates and authentication tokens, rather than exchanging comprehensive data sets. This selective extraction of critical information maintains authentication reliability and position accuracy while minimizing communication overhead and energy expenditure.
2Volume of moving object
If miniaturization of ID transmitter is pursued, then portability and ease of use are improved, but energy source size and power capacity are reduced
Solution Approach 1:
By implementing periodic beacon transmission instead of continuous communication, the patent reduces the power consumption requirements of the miniaturized ID transmitter. The microcontroller enters low-power states between beacon transmissions, allowing the use of smaller energy sources while maintaining operational functionality.
Solution Approach 2:
The patent replaces traditional continuous radio communication with optimized periodic beacon transmission using Bluetooth Low Energy technology. This substitution enables miniaturization by dramatically reducing the power requirements, allowing small batteries to sustain operation for extended periods.
3Duration of action of moving object
If authentication functionality is maintained with reduced power consumption, then battery life is extended, but communication reliability and security may be compromised
Solution Approach 1:
The patent configures beacon transmission intervals to balance battery life extension with authentication reliability. By transmitting beacons at optimized intervals and using efficient low-power radio technology, the system maintains secure authentication capability while achieving extended operational duration between battery changes.
Solution Approach 2:
The ID transmitter prepares authentication data and position information in advance, storing them in memory before beacon transmission. This preliminary preparation allows the microcontroller to enter deep sleep modes longer, extending battery life while ensuring authentication data is ready for immediate transmission when needed, maintaining security and reliability.
Data Source
AI summary
The invention relates to a method for authenticating a mobile ID transmitter (2) having an ID transmitter BLE interface (4) to an access control unit (8) with an access control unit BLE interface (9) of a physical unit (3), wherein the method comprises the following steps: A) transmitting a beacon (12) with a beacon short identifier (13) in a first step (100); B) checking the beacon short identifier (13); C) performing a BLE communication sequence (14) with steps (200, 300, 400, 500); D) authenticating the ID transmitter (2). The invention also relates to an ID transmitter (2) with antenna (5), microcontroller (6) and sensor (7), wherein the ID transmitter (2) forms a system (1) with the physical unit (3), also comprising antenna (10) and control unit (11).