Wireless Communication Switching for Device Authentication
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Solution Overview
Problem
Conventional technologies for short distance wireless communication, such as NFC and Bluetooth, do not effectively search for processing target apparatuses, leading to difficulties in specifying appropriate devices for communication, especially when users fail to designate the processing target.
Innovation Solution
An information processing apparatus and method that enables easy searching for devices to execute processing by utilizing both NFC and WLAN communication methods, allowing users to select and authenticate print apparatuses using NFC for low-speed communication and switching to WLAN for high-speed data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only NFC communication is used for device search, then authentication security is improved, but communication speed deteriorates
Solution Approach 1:
The device search and communication process is segmented into two distinct phases: first using NFC for secure authentication and device identification, then switching to WLAN for high-speed data transfer. This segmentation allows each communication method to be optimized for its specific function, resolving the contradiction between security and speed.
Solution Approach 2:
NFC communication is performed as a preliminary action before WLAN communication. The NFC phase establishes authentication and exchanges necessary information (such as WLAN connection details) in advance, enabling the subsequent WLAN phase to proceed at high speed without compromising security.
2Ease of operation
If automatic device search is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The system performs automatic device search and selection without requiring complex user intervention. The terminal automatically searches for print apparatuses using both NFC and WLAN, identifies compatible devices, and presents them to the user in a simplified manner, allowing the system to handle the complexity internally while maintaining ease of operation externally.
3Reliability
If both NFC and WLAN search methods are used simultaneously, then completeness of device detection is improved, but processing time increases
Solution Approach 1:
The device search is performed in periodic sequential phases rather than simultaneously. First, NFC-based search is executed to identify nearby devices with high reliability. Then, WLAN-based search is performed to detect additional devices. This periodic sequential approach ensures comprehensive device detection while minimizing total search time by avoiding redundant simultaneous operations.
Data Source
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Figure 4A~4B
AI summary
In an information processing apparatus (200) capable of executing a first wireless communication method and a second wireless communication method having a communication range wider than that of the first wireless communication method, an apparatus to be caused to execute predetermined processing is searched for using both the first wireless communication method and the second wireless communication method. When a common apparatus has been found by both the first wireless communication method and the second wireless communication method, the common apparatus is decided as the apparatus to be caused to execute the predetermined processing by the second wireless communication method.