Terminal Device Control via QR Code and NFC
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Solution Overview
Problem
Conventional terminal device control techniques are limited in controlling devices outside a specific area or organization, and they require a server infrastructure, which is costly and inefficient for managing multiple devices, especially in scenarios like exhibitions or concerts where unspecified individuals are present.
Innovation Solution
A method and system that allows terminal devices to receive device control information via various distribution methods, such as barcodes, QR codes, NFC, or wireless communication, to determine their location and time, and adjust their functionality accordingly, enabling control within specific areas or periods without the need for a centralized server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional terminal device control techniques are used, then terminal devices can be controlled within a specific organization or group, but it is substantially difficult to control terminal devices outside the corresponding area
Solution Approach 1:
The patent introduces device control information as an intermediary carrier that transmits control rules from the control system to terminal devices. This information acts as a mediator that enables control across different areas and organizations without requiring direct server connection, thus expanding control coverage while maintaining control effectiveness
Solution Approach 2:
The patent uses copying by distributing device control information in various forms (barcodes, QR codes, NFC data, wireless signals) to multiple terminal devices. Each device receives a copy of the control information independently, enabling widespread control without a centralized server infrastructure
2Reliability
If conventional terminal device control techniques including MDM solution are used, then information leakage can be prevented through security functions, but various pieces of information can still be easily accessed and obtained leading to unintended information spill
Solution Approach 1:
The patent implements dynamic control by making terminal device functions adjustable based on location and time. Control rules are not static but change according to the device's position relative to control areas and the current time, enabling flexible security management that adapts to different scenarios to prevent both intentional and unintended information leakage
Solution Approach 2:
The patent changes the parameters of terminal device control by introducing location and time as controlling variables. Device functions are activated or deactivated based on whether the device is within a control area and whether the current time falls within a control period, creating a dynamic security framework
3Extent of automation
If terminal devices must be registered with a server and perform approval process, then centralized control can be achieved, but a lot of costs and manpower are necessary for construction and maintenance of server
Solution Approach 1:
The patent extracts the essential control functionality from the server infrastructure and embeds it directly into terminal devices through device control information. By taking out the core control logic and placing it locally in each device, the system maintains centralized control capability while eliminating the need for complex server infrastructure
Solution Approach 2:
The patent enables self-service by allowing terminal devices to independently process and enforce control rules locally without requiring continuous server connection or approval processes. Each device autonomously determines whether to activate control functions based on its location and time, reducing dependency on centralized infrastructure
Data Source
AI summary
Disclosed are a method, apparatus, and system for controlling a terminal device. A method of controlling a terminal device is performed by a terminal device control unit included in the terminal device. The method may include determining whether or not to change a state of the terminal device into a terminal device control state based on range information including at least one of a control area and a control period in which the terminal device is controlled and the real-time information of the terminal device, changing the state of the terminal device into the terminal device control state based on a result of the determination, and controlling the terminal device based on the control information in the terminal device control state.