Terminal Device Distance-Based Information Display Security
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Solution Overview
Problem
Existing methods for displaying information on terminal devices, such as two-dimensional codes, are insecure as they often expose sensitive information to the public for extended periods, increasing the risk of leakage, especially in crowded environments.
Innovation Solution
A terminal device with a monitoring module to determine the distance between itself and a designated device, and a determining module to decide whether to display information only when the distance is within a preset threshold, or when the device information matches pre-stored information, thereby minimizing exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the information is displayed directly on the display interface in advance, then the user can wait for the scanning device to approach and scan the code, but the information is exposed to the public for a long time increasing the risk of leakage
Solution Approach 1:
The patent applies the dynamics principle by making the display state changeable based on distance detection. The display interface dynamically switches between displaying and non-displaying states according to the real-time distance between the terminal device and the scanning device, rather than maintaining a fixed display state. This resolves the contradiction by allowing convenient information display when needed while automatically preventing exposure when the scanning device is not nearby.
Solution Approach 2:
The patent implements feedback by using the distance detection module to continuously monitor the distance between the terminal device and scanning device, and using this feedback information to control the display module. The system receives feedback about device proximity and adjusts the display state accordingly - displaying information only when the scanning device is within the preset distance threshold, thereby securing information while maintaining operational convenience.
2Reliability
If the terminal device monitors distance and only displays information when within preset distance, then information security is improved, but the device complexity increases due to additional monitoring and determining modules
Solution Approach 1:
The patent applies universality by designing the terminal device with multi-functional integration. The distance detection module can serve multiple purposes: it not only controls the display state for security but can also be used for other proximity-based functions. The display module similarly serves both information display and security control functions. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity while achieving improved information security.
3Reliability
If the information is not displayed until the scanning device is close, then information leakage is prevented, but the user experiences waiting time before information can be displayed
Solution Approach 1:
The patent applies preliminary action by pre-configuring the system with a preset distance threshold and pre-loading the information ready for display. The distance detection and determination logic is prepared in advance, so when the scanning device approaches within the threshold distance, the information can be displayed immediately without additional processing delays. This minimizes the user's waiting time while maintaining security by ensuring information is only displayed when the predetermined distance condition is met.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly reduces the time sensitive information is exposed, enhancing security by preventing unauthorized access and leakage.
Implementation Method 1
the monitoring module includes one of a laser rangefinder, an ultrasonic rangefinder, or an infrared rangefinder
Implementation Method 2
the monitoring module includes one of a laser rangefinder, an ultrasonic rangefinder, or an infrared rangefinder
Implementation Method 3
the monitoring module includes one of a laser rangefinder, an ultrasonic rangefinder, or an infrared rangefinder
Data Source
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AI summary
A terminal device for securely displaying information is provided. The terminal device includes a monitoring module configured to monitor a distance between the terminal device and a designated device, a determining module configured to determine whether the distance is less than a preset distance, and a displaying module configured to display the information if the determining module determines that the distance is less than the present distance.