Dynamic Caller Image Generation for Nurse Call Systems
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Solution Overview
Problem
In nurse call systems, the frequent changes in patient information and extension numbers due to hospitalization, discharge, or room transfers pose challenges for displaying accurate caller information on smartphones, particularly for iPhone devices, where OS restrictions limit the display of character information and background colors on incoming call screens, and require frequent updates across all terminals.
Innovation Solution
A method for generating and displaying caller information as images and text on incoming call screens using a portable terminal device's telephone dictionary, allowing dynamic updating of caller information without changing registered numbers and names, even during security locks, by utilizing CallKit to manage conflicting operations and display patient information effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If patient information and extension numbers are updated frequently in the telephone directory, then accurate caller information can be displayed, but system complexity and update frequency increase
Solution Approach 1:
The system performs preliminary actions by generating and storing thumbnail images of caller information in advance. When an incoming call occurs, the pre-generated thumbnail is immediately displayed without requiring real-time information retrieval or processing, thus maintaining accuracy while reducing system complexity and update frequency requirements
Solution Approach 2:
Instead of storing and managing large amounts of detailed caller information (names, symptoms, urgency levels) in the telephone directory, the system creates simplified thumbnail copies that contain essential visual information. These thumbnails serve as lightweight representations that can be displayed quickly without requiring complex data management
2Loss of information
If character information and background colors are displayed on incoming call screens, then caller information recognition is improved, but OS restrictions on iPhone prevent this
Solution Approach 1:
The system replaces the mechanical/text-based information display approach with an image-based display approach. Instead of relying on the iPhone OS's text rendering capabilities (which are restricted), the system substitutes thumbnail images that can be displayed universally without being subject to OS-specific text display limitations
Solution Approach 2:
The system changes the display parameter from text/character information to image information. By converting caller information into thumbnail images, the system bypasses OS restrictions on character display and background colors, achieving universal compatibility while maintaining information recognition effectiveness
3Measurement precision
If all terminals are updated with new caller information, then information accuracy is maintained, but update time and productivity are reduced
Solution Approach 1:
The system extracts only the essential visual information from caller data and stores it as thumbnail images. When information needs to be displayed, only the relevant thumbnail is retrieved and shown, eliminating the need to update and distribute comprehensive caller information across all terminals, thus maintaining accuracy while improving response efficiency
Data Source
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AI summary
The invention provides an incoming call screen display method, comprising: receiving an incoming call signal including a caller number, caller information, and ring type information when an incoming telephone call is received, and generating, based on the received incoming call signal, a caller information image including at least a portion of the caller information included in the incoming call signal as character information; generating caller text information based on at least one of the caller information and the ring type information; registering the caller number, the caller text information, and the caller information image in a telephone dictionary managed in the portable terminal device; acquiring the registered caller text information and the caller information image corresponding to the caller number from the telephone dictionary; and displaying an incoming call screen including the caller text information and the caller information image.