BLE Microlocation Sensor Sync in Connection Interval Gaps
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Solution Overview
Problem
Conventional systems face bandwidth constraints that limit the ability to accurately measure and determine the location of a transmitter and receiver using signal strength, particularly when multiple measurements are required, leading to reduced microlocation accuracy.
Innovation Solution
A system and method utilizing a Bluetooth Low Energy (BLE) microlocation system that interleaves a communication protocol within connection interval gaps to synchronize and communicate sensor information, allowing for enhanced microlocation accuracy by collecting and analyzing sensor measurements quickly and in a synchronized manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple measurements are made with respect to multiple communications between transmitter and receiver, then location determination accuracy is improved, but bandwidth consumption increases and measurement capability is limited
Solution Approach 1:
The patent segments the communication bandwidth by utilizing connection interval gaps in BLE protocol to transmit sensor information separately from main communication data. This allows multiple measurements to be made without consuming additional communication bandwidth, as sensor data is transmitted during the gaps between main communication packets.
Solution Approach 2:
The system performs periodic sensing during connection interval gaps, where sensors continuously measure signal characteristics at regular intervals defined by the connection parameter. This periodic measurement approach enables accumulation of multiple measurements over time while maintaining efficient bandwidth utilization through the structured gap-based transmission schedule.
2Measurement precision
If sensor information is transmitted continuously to improve location accuracy, then measurement precision is improved, but communication bandwidth is exceeded
Solution Approach 1:
The controller device performs preliminary action by establishing a structured communication protocol that defines specific transmission windows during connection interval gaps before sensor data accumulation becomes problematic. This pre-planned transmission schedule allows continuous sensing while controlling data volume through time-division multiplexing of sensor information packets.
Solution Approach 2:
The patent extracts sensor information transmission from the main communication data stream by utilizing the gap time frames between main communication packets. This extraction allows sensor data to be transmitted separately without interfering with or consuming bandwidth from the primary communication channel, enabling continuous measurement without exceeding bandwidth limits.
Data Source
AI summary
A system and a method to wirelessly synchronize, monitor, or communicate, or a combination thereof, amongst sensors (e.g., sensors, hubs, sensor controllers, etc.) in a Bluetooth Low Energy-based microlocation system. The system or method, or both, may use the BLE hardware (e.g., transmitters, receivers, antennas, etc.) to interleave a communications protocol within the connection interval gaps of the BLE protocol used to communicate with devices.