BLE Measurement Communication Reconnection Without Unwanted Pairing
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Solution Overview
Problem
Existing Bluetooth Low Energy (BLE) communication systems between measurement devices and communication terminals often establish and disconnect communication unnecessarily, leading to unintended user communication establishment.
Innovation Solution
The measurement device transmits advertisement information including state and bonding information to the communication terminal, allowing the terminal to determine whether to establish or re-establish communication based on the device's state and encryption key presence, thereby preventing unintended communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the measurement device performs periodic advertisement processing to re-establish communication, then communication can be restored after disconnection, but unintended communication establishment occurs repeatedly
Solution Approach 1:
The patent applies preliminary action by checking whether communication disconnection was caused by the measurement device itself before initiating advertisement processing. The control unit determines if the device should perform advertisement processing based on pre-established criteria about the disconnection cause, preventing unnecessary or unintended communication attempts while ensuring restoration when appropriate
Solution Approach 2:
The patent implements feedback by having the control unit continuously monitor communication status and analyze disconnection causes. Based on this feedback about whether the disconnection originated from the measurement device or external factors, the system dynamically decides whether to initiate advertisement processing, thereby avoiding unintended communication while maintaining reliable restoration when needed
2Loss of information
If the measurement device transmits data periodically, then data synchronization is maintained, but communication overhead and energy consumption increase
Solution Approach 1:
The patent applies periodic action selectively by transmitting data periodically only when communication is actually established and maintained. Rather than continuous periodic transmission regardless of connection status, the system uses periodic transmission intervals during active communication phases, reducing overall energy consumption while maintaining data synchronization when the communication channel is available
Solution Approach 2:
The patent ensures continuity of useful action by maintaining data transmission during established communication periods and suspending transmission attempts during disconnection periods. This approach keeps data synchronization active when possible while avoiding wasteful energy consumption during communication outages, making the useful action continuous only when it can be effectively performed
Data Source
AI summary
A measurement device comprising: a processor; and a memory configured to store a program executed by the processor cause the measurement device to: first advertisement process for establishing a communication between a host device and a communication device by transmitting first advertisement information to the communication terminal, the first advertisement information including first state information indicating a state of the host device and first boding information indicating whether an encryption key used for the communication with the communication terminal is stored or not, in response to disconnection of the communication with the communication terminal, second advertisement process for re-establishing the communication between the host device and the communication terminal by transmitting second advertisement information after the encryption key is shared between the host device and the communication device, the second advertisement information including second boding information indicating that the encryption key is stored and second state information indicating a current state of the host device.