BLE Remote Control Relay for Offline Electronic Devices
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Solution Overview
Problem
Electronic devices that are not connected to a network can be difficult to locate and control remotely, especially after losing communication with a parent terminal or network connection.
Innovation Solution
A remote control apparatus and method utilizing Bluetooth low energy (BLE) advertising to find and control electronic devices by encrypting and decrypting messages using key information, enabling remote functions like locking or initialization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network connection is used for remote control, then remote control functionality is available, but remote control of disconnected devices is not possible
Solution Approach 1:
A second electronic device acts as an intermediary between the user and the lost first electronic device. The second device receives BLE advertising signals from the disconnected first device, establishes a communication connection, and relays encrypted remote control messages between the user and the first device, enabling control without direct network connection.
Solution Approach 2:
The patent replaces network-based remote control mechanisms with Bluetooth Low Energy (BLE) advertising and direct wireless communication. This substitution allows the lost device to be located and controlled through proximity-based BLE signals rather than requiring network infrastructure.
2Object-affected harmful factors
If encryption is used for secure communication, then privacy is protected, but communication complexity increases
Solution Approach 1:
Encryption key information is pre-shared between the first electronic device and the user's device before the loss occurs. When the device is lost, this pre-established key enables immediate secure communication without requiring complex key exchange protocols during the emergency situation.
Solution Approach 2:
The encryption key information is copied and stored in advance in both the lost device and the user's device. This copying approach simplifies the communication process by eliminating the need for real-time key negotiation, while still providing strong security through symmetric encryption.
Data Source
AI summary
An apparatus for remote control of an electronic device is provided. The apparatus includes a communication module, a memory, and a processor. The processor may be configured to obtain key information associated with a first electronic device, receive a virtual identification (ID) and location information based on the key information from a second electronic device, identify the first electronic device corresponding to the virtual ID using the key information, encrypt a remote control function request message for the first electronic device using the key information, transmit the encrypted remote control function request message to the second electronic device, receive, from the second electronic device, a remote control function request processing result message encrypted in the first electronic device, obtain a remote control function request processing result, and other embodiments may be provided by decrypting the encrypted remote control function request processing result message using the key information.