Biological Sensor Data Transmission via Segmented BLE Cycles
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Solution Overview
Problem
Bluetooth Low Energy (BLE) standards do not effectively support the transmission of second biological information, such as calorie intake, mental stress, and sleep information, which requires a larger data amount, leading to power saving performance issues and inability to transmit data during disconnection.
Innovation Solution
A biological information measurement apparatus that transmits first biological information in a standard BLE communication cycle and second biological information in a longer communication cycle, using a specific profile to store and transmit data accumulated over time, allowing for larger data amounts to be transmitted while maintaining power saving performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If second biological information with larger data amount is transmitted using standard BLE profile, then data transmission capability is improved, but power saving performance deteriorates
Solution Approach 1:
The patent divides biological information into two categories: first biological information (real-time data like pulse and body temperature) transmitted using standard BLE profile, and second biological information (accumulated data like calorie intake and sleep information) transmitted using a specific profile with longer communication cycles. This segmentation allows each type of data to be transmitted using the most appropriate profile, maintaining power saving performance while enabling larger data transmission.
Solution Approach 2:
The patent implements different communication cycles for different types of data: short communication cycles for first biological information to maintain real-time updates, and long communication cycles for second biological information to reduce power consumption. This periodic action with varying periods optimizes both power saving performance and data transmission capability.
2Use of energy by moving object
If communication is disconnected to save power, then power saving performance is improved, but data transmission capability deteriorates
Solution Approach 1:
The patent stores second biological information in advance during communication connection, so that when communication is re-established after disconnection, the accumulated data can be transmitted immediately without requiring continuous communication during the disconnection period. This preliminary storage action ensures data transmission capability is maintained while allowing power saving during disconnection.
3Speed
If first biological information is transmitted continuously to maintain real-time performance, then real time performance is improved, but power saving performance deteriorates
Solution Approach 1:
The patent segments biological information transmission into two streams: continuous transmission of first biological information using standard BLE profile for real-time performance, and periodic transmission of second biological information using specific profile for power saving. This segmentation allows real-time performance to be maintained for critical data while reducing overall power consumption.
Data Source
AI summary
A biological information measurement apparatus includes a sensor unit, a processing unit which detects first biological information and second biological information based on sensor information obtained from the sensor unit, a communication unit which transmits the first biological information and the second biological information to an information processing apparatus, and a storage unit which stores the second biological information. The communication unit transmits the first biological information in a first communication cycle and transmits the second biological information stored in the storage unit in a second communication cycle longer than the first communication cycle.