BLE Mobile ID Authentication for Low-Power Access Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mobile ID transmitters face challenges in authenticating with access control units while minimizing power consumption and maintaining functionality, particularly in vehicles with electronic locking systems.
Innovation Solution
Utilizing Bluetooth Low Energy (BLE) beacons with short identifiers for initial localization and authentication, combined with sensor data validation, to initiate secure BLE communication with reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional radio communication (LF/HF) is used for authentication, then authentication functionality is achieved, but power consumption increases
Solution Approach 1:
The patent changes the communication parameter from traditional LF/HF radio waves to Bluetooth Low Energy (BLE) technology. This parameter change enables authentication functionality to be maintained while significantly reducing power consumption, as BLE is specifically designed for low-energy wireless communication. The ID transmitter uses BLE to establish secure communication with the access control unit, achieving the same authentication goal with much lower energy requirements.
2Volume of moving object
If miniaturization of ID transmitter is pursued, then device size is reduced, but energy source dimensions must be correspondingly smaller
Solution Approach 1:
By changing the communication technology parameter to BLE, the patent reduces overall power consumption requirements. This allows the energy source (battery) to be smaller in dimension while still providing sufficient operating life. The lower power draw of BLE communication enables miniaturization of the ID transmitter without proportionally reducing battery size, as the reduced energy consumption extends battery life even with smaller capacity.
3Measurement precision
If position determination using RSSI or UWB is implemented, then position accuracy is improved, but power consumption increases
Solution Approach 1:
The patent uses BLE technology which provides sufficient position determination capability for access control purposes without the high power consumption of UWB or continuous RSSI monitoring. BLE's positioning features are adequate for determining whether the ID transmitter is in proximity to the access control unit, which is sufficient for authentication decisions, thereby avoiding unnecessary energy expenditure on high-precision positioning.
4Reliability
If continuous radio communication is maintained for authentication, then authentication security is ensured, but battery life is reduced
Solution Approach 1:
The patent implements authentication based on periodic BLE communication rather than continuous radio communication. The ID transmitter and access control unit establish secure authentication through scheduled BLE data exchanges, which occur periodically when needed. This periodic action maintains authentication security through proper cryptographic protocols while significantly extending battery life compared to continuous communication, as the low-energy BLE technology allows longer intervals between transmissions.
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
Achieves secure and efficient authentication of mobile ID transmitters with minimal power requirements, extending battery life and enhancing operational security.
Implementation Method 1
A) A beacon with a short beacon identifier that characterizes the ID transmitter/BLE interface is transmitted from the ID transmitter/BLE interface
Data Source
AI summary
The disclosure relates to a method for authenticating a mobile ID transmitter, which has an ID transmitter/BLE interface, at an access control unit with an access control unit/BLE interface of a physical unit, wherein the method comprises the following steps:A) transmitting a beacon with a short beacon identifier in a first step; B) checking the short beacon identifier; C) performing a BLE communication sequence with steps; D) authenticating the ID transmitter. The disclosure also relates to an ID transmitter with an antenna, microcontroller, and sensor, wherein the ID transmitter forms a system with the physical unit, also having an antenna and control apparatus.