BLE Sensing Terminal Broadcast Data Transmission
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Solution Overview
Problem
Current data transmission systems using Bluetooth low energy (BLE) communication between healthcare terminals and smartphones require pairing, which can be burdensome for users, especially the elderly, and may result in data loss due to the need for manual confirmation and potential communication disruptions.
Innovation Solution
A data transmission/reception method that utilizes BLE communication without pairing, allowing sensing data to be transmitted in broadcast mode with sequentially assigned timestamps, enabling real-time data recovery by switching between broadcast and connection modes to detect and recover missing data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pairing is required for BLE communication between healthcare terminal and smartphone, then communication reliability is improved, but ease of operation deteriorates due to manual confirmation burden
Solution Approach 1:
The system performs automatic pairing between healthcare terminal and smartphone without requiring user intervention. The terminals automatically establish connection, confirm data reception, and handle retransmission requests, eliminating the manual confirmation burden while maintaining communication reliability
Solution Approach 2:
The system pre-establishes pairing information and connection parameters before actual data transmission begins. This preliminary setup allows subsequent communications to occur automatically without requiring user confirmation for each transmission event
2Measurement precision
If manual confirmation is required for each data transmission, then data accuracy is improved, but productivity deteriorates due to frequent user intervention
Solution Approach 1:
The system implements automatic feedback mechanisms where the receiving terminal sends acknowledgment signals for received data, and the transmitting terminal automatically retransmits data if acknowledgment is not received. This maintains data accuracy through verification while eliminating the need for manual user intervention
Solution Approach 2:
The data verification and retransmission processes are performed automatically by the terminals themselves without requiring user confirmation for each transmission, thereby maintaining data accuracy while improving transmission productivity
3Ease of operation
If broadcast mode is used for BLE communication, then ease of operation is improved by eliminating pairing, but reliability deteriorates due to potential data loss
Solution Approach 1:
The receiving terminal automatically sends feedback signals to confirm successful data reception in broadcast mode. When data is lost or not received, the system automatically requests retransmission, maintaining reliability while preserving the ease of operation benefits of broadcast mode
Solution Approach 2:
The system pre-configures automatic data recovery protocols and retransmission mechanisms before data transmission begins. This allows broadcast mode to be used without pairing while ensuring that data loss can be automatically detected and recovered
4Reliability
If automatic data recovery is implemented, then reliability is improved by reducing data loss, but device complexity increases due to mode switching mechanisms
Solution Approach 1:
The BLE terminal is designed to support multiple communication modes (broadcast mode and connection mode) within a single device architecture. This multi-functionality allows the system to automatically switch between modes for data transmission and recovery without requiring separate dedicated hardware for each function
Data Source
AI summary
Provided is a data transmission/reception method performed in a data transmission/reception system including a sensing terminal and a user terminal connected through Bluetooth low energy (BLE) communication. The data transmission/reception method includes operations of allowing the sensing terminal to acquire sensing data, allowing the sensing terminal to sequentially assign a number on the basis of the time at which the sensing data is acquired and store the number in a packet of the sensing data, and allowing the sensing terminal to transmit the sensing data in which the number is stored to the user terminal in a broadcast mode of the BLE communication.