BLE-Wi-Fi Dual-Mode Linking for Low-Power Image Transfer
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Solution Overview
Problem
Conventional wireless communication systems between imaging devices and information processing devices, such as smartphones, require continuous power to maintain connections, limiting convenience and efficiency, especially when devices are in low power states or not actively operating.
Innovation Solution
A data processing system utilizing Bluetooth Low Energy (BLE) for maintaining constant connections and Wi-Fi for high-speed file transfers, where BLE is used for periodic communication even when devices are not in an operational state, allowing for automatic image transfer and sharing without manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous communication connection is maintained between devices, then data transfer reliability is improved, but power consumption increases
Solution Approach 1:
The system implements periodic communication where the peripheral device sends advertising signals at regular intervals and the central device responds periodically. This allows the communication connection to be maintained in a low-power state while still enabling reliable data transfer when needed, resolving the contradiction between continuous connection reliability and power consumption.
Solution Approach 2:
The peripheral device automatically sends advertising signals and the central device automatically responds and establishes connections without requiring continuous manual intervention. The system self-manages the connection state, transitioning between active and low-power states autonomously based on data transfer needs, thus maintaining reliability while reducing power consumption.
2Ease of operation
If communication connection is established quickly, then user convenience is improved, but power consumption increases
Solution Approach 1:
The peripheral device pre-sends advertising signals containing device identification and capability information. When the central device needs to connect, the pairing information is already available, enabling quick connection establishment without lengthy handshaking procedures. This preliminary preparation improves user convenience while the intermittent nature of signal sending keeps power consumption low.
3Productivity
If devices remain in active state for data transfer, then data processing speed is improved, but battery life decreases
Solution Approach 1:
The system dynamically transitions between active and low-power states based on data transfer requirements. During active data transfer, full processing speed is utilized. When no transfer is needed, devices transition to low-power states with reduced activity. This dynamic adaptation allows high productivity during operation while extending battery life through periodic idle states.
Solution Approach 2:
Devices operate in periodic cycles of active communication and low-power states. The peripheral device sends advertising signals periodically, and the central device responds periodically. This periodic operation pattern enables the system to achieve necessary data processing speeds during active phases while significantly extending battery life through the low-power intervals between operations.
Data Source
AI summary
A data processing system includes a unit which executes predetermined data processing by linking first and second apparatuses, a communication control unit which establishes and maintains a communication connection between the apparatuses even if the connection is not in a predetermined operation state capable of executing data processing, a pairing unit which causes the apparatuses to transition to a pairing state, and a control unit which, if the apparatuses' transition to the pairing state is not in a predetermined operation state, causes transition to the operation state by transmitting predetermined signals between the apparatuses via the communication control unit. The execution unit causes the apparatuses to transition to a pairing state, and then executes data processing by linking them. The communication control unit judges whether to establish a communication connection between the apparatuses by referencing pairing states between them, and of a combination with another first or second apparatus.