BLE Beacon ID Transmitter for Low-Complexity Access Authentication
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Solution Overview
Problem
Existing access control systems for physical units, such as vehicles, are complex and costly, making them unsuitable for widespread use beyond premium products, while maintaining the need for both security and ease of use.
Innovation Solution
A portable ID transmitter with a BLE interface that sends authentication signals as BLE beacon data packets, utilizing a microcontroller and a switching mechanism to provide secure and efficient communication, reducing energy consumption and enhancing operational reliability through limited range communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional bidirectional radio communication systems are used for authentication, then security and operating comfort are improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces complex bidirectional radio communication systems with a simpler unidirectional BLE beacon transmission system. Instead of requiring full-duplex radio communication between ID transmitter and access control unit, the invention uses BLE beacon packets that can be received and authenticated by the access control unit without requiring the transmitter to maintain an active radio communication channel, thereby reducing system complexity while maintaining authentication security
Solution Approach 2:
The patent uses BLE beacon data packets as a simplified copy or alternative representation of traditional authentication signals. The beacon packets contain authentication information in a standardized format that can be processed by the access control unit, providing a lighter-weight alternative to full bidirectional communication protocols while preserving the essential authentication function
2Use of energy by moving object
If BLE beacon data packets are used for authentication, then energy consumption is reduced, but communication range and signal strength may be limited
Solution Approach 1:
The patent applies partial action by using BLE beacons only for the specific purpose of authentication signaling rather than for general communication. The access control unit is designed to listen for and process BLE beacon packets containing authentication data, eliminating the need for continuous high-power radio communication while maintaining sufficient range for the authentication function
Solution Approach 2:
The BLE beacon interface is designed to serve multiple functions: authentication signaling, proximity detection, and secure communication. By making the BLE interface universal rather than purpose-specific, the system achieves energy efficiency for authentication while the same interface can be extended for other functions if needed, mitigating the range limitation through multi-functional use
Data Source
Figure 1a~4
AI summary
An ID transmitter (1) for authentication at an access control unit of a physical unit is described. The ID transmitter (1) includes, among other things: - an ID transmitter BLE interface (2) with an antenna (21), - a microcontroller (3), - a switching device (4), and - a battery compartment (6) for housing a battery (5). The microcontroller (3) is configured to trigger the transmission of an authentication signal (7) in response to the receipt of the switching signal. This signal contains authentication information (8) and is formatted as a BLE beacon data packet. A kit for assembling an ID transmitter (1) and a system consisting of an ID transmitter (1) and a physical unit are also described.