Communication Device Multi-Terminal Connection Management
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Solution Overview
Problem
A communication device, such as a printer, may fail to establish a Wi-Fi Direct (WFD) connection with a first mobile terminal after establishing a Near Field Communication (NFC) connection with it, when a second mobile terminal requests a connection, leading to disruption of the WFD connection with the first terminal.
Innovation Solution
The communication device employs a processor and memory to manage multiple wireless interfaces, allowing it to establish a second wireless connection with a second terminal after receiving specific information from the first terminal, and determines if the terminals are identical before disconnecting any connections, ensuring the WFD connection with the intended terminal is maintained.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the MFP establishes a WFD connection with a second mobile terminal after receiving a connection request, then the MFP can communicate with the second terminal, but the WFD connection with the first mobile terminal may be disrupted
Solution Approach 1:
The MFP stores specific information (such as device identifiers or connection parameters) from the first terminal device before establishing the second wireless connection. This preliminary storage of identification data enables the MFP to later verify whether an incoming connection request originates from the same terminal, thereby preventing unauthorized disconnections and maintaining connection stability while allowing multi-terminal connectivity
2Adaptability or versatility
If the MFP allows connection requests from multiple terminals, then communication flexibility is improved, but connection management complexity increases
Solution Approach 1:
The MFP creates a copy or record of the specific information from the first terminal device and stores it in memory. This copied information serves as a reference template that automatically matches against subsequent connection requests, simplifying the management of multiple connections by replacing complex verification procedures with straightforward data comparison
Data Source
AI summary
A communication device may receive first specific information from a first terminal device, establish a second wireless connection with a second terminal device after the first specific information has been received from the first terminal device, receive second specific information from the second terminal device after the second wireless connection has been established with the second terminal device, determine whether the first terminal device is identical to the second terminal device by using the first specific information and the second specific information in a case where the second specific information is received from the second terminal device, disconnect the second wireless connection in a case where it is determined that the first terminal device is not identical to the second terminal device, and not disconnect the second wireless connection in a case where it is determined that the first terminal device is identical to the second terminal device.