QR Code Call System for Secure Visitor Communication
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Solution Overview
Problem
Low-income individuals in shared living spaces face challenges in communicating with visitors without exposing their phone numbers, as traditional camera doorbell systems are costly and privacy concerns prevent the use of public phone numbers, while QR codes offer a secure and accessible solution for contactless communication.
Innovation Solution
A mobile app and call service system utilizing QR codes to enable secure audio or video calls between users, with a user management system, call server, and backend database, allowing users to register, authenticate, and manage call settings without exposing their contact information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional camera doorbell device is used, then secure communication with visitors is achieved, but the cost becomes prohibitively high for low-income individuals
Solution Approach 1:
The patent replaces expensive camera doorbell hardware with inexpensive QR code stickers that can be printed and applied to doors. The QR code serves as a temporary, disposable access method that eliminates the need for costly electronic devices while maintaining secure communication capabilities through the mobile app infrastructure.
Solution Approach 2:
The patent introduces a mobile app-based intermediary system that mediates between visitors and residents. Instead of direct hardware-to-hardware communication, the system uses mobile devices and QR codes as intermediaries to enable secure communication, thereby reducing hardware costs while maintaining security.
2Ease of operation
If a public phone number is exposed for visitor contact, then communication convenience is improved, but privacy security deteriorates due to spam and scam risks
Solution Approach 1:
The patent uses a mobile app and QR code system as an intermediary layer between visitors and residents. The QR code contains encoded contact information that enables communication without exposing the resident's actual phone number. The mobile app acts as a mediator that routes calls securely, preventing direct exposure of personal contact information to the public.
Solution Approach 2:
The patent creates a digital copy of contact information encoded within the QR code rather than displaying the actual phone number. Visitors scan the QR code to obtain call capabilities without the resident's real phone number being visible, thus maintaining privacy while enabling communication convenience.
3Adaptability or versatility
If camera doorbell systems are deployed in shared living spaces, then individual communication needs are met, but the complexity of installation and maintenance increases
Solution Approach 1:
The patent replaces complex camera doorbell systems with simple QR code stickers that require no installation or maintenance. Each resident receives a printed QR code sticker that can be applied to their door, eliminating the need for electronic installation while providing individual communication capabilities through the shared mobile app platform.
Solution Approach 2:
The patent creates a universal mobile app platform that serves all residents in shared living spaces. Instead of deploying individual camera doorbells to each unit, a single multi-functional mobile app handles communication needs for all residents, reducing overall system complexity while maintaining individual communication capabilities.
Data Source
AI summary
A Methods and application for mobile devices that allow users to engage in an audio and/or video call using QR code. The system comprises a call service system and a mobile app to be executed on the user's mobile device for initiating a call and receiving a call. Contact information of one or more call recipient are recorded in a ping tag. The QR code is generated from a network call-placing process identifying the said ping tag as the call destination. Using a default camera app on a mobile device, the present invention allows a caller to simply scans QR code to place a call to call recipient(s) associated with the ping tag of the present invention through the call service system.