Shared Map Views With Annotation Sync for Low-Bandwidth Collaboration
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Solution Overview
Problem
Existing mobile collaboration systems struggle to ensure all users see the same situational awareness view simultaneously, leading to confusion and require significant network bandwidth for real-time view updates.
Innovation Solution
A method for generating multiple shared views by transmitting location information and annotations without map data, allowing devices to synchronize views using locally stored map data, ensuring real-time consistency across devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real-time view updates are transmitted across the network, then all users can see the same situational awareness view simultaneously, but network bandwidth consumption increases significantly
Solution Approach 1:
The patent extracts and transmits only the essential view information elements (location information and annotations) separately from the map data. By taking out only the necessary updates rather than transmitting complete view data, the system achieves real-time synchronization while minimizing network bandwidth consumption.
Solution Approach 2:
The view information is segmented into distinct components: map data (stored locally), location information (transmitted for synchronization), and annotations (transmitted for collaboration). This segmentation allows selective transmission of only the necessary updates, resolving the contradiction between real-time consistency and bandwidth usage.
2Stability of the object's composition
If complete view data including map data is transmitted to all devices, then all users see identical views, but data transmission time and network load increase
Solution Approach 1:
Map data is pre-loaded and stored locally on each device before collaboration begins. This preliminary action eliminates the need to transmit map data during real-time collaboration, reducing data transmission time while maintaining view consistency through transmission of only location information and annotations.
Solution Approach 2:
The system extracts only the variable elements of view information (location and annotations) for transmission, leaving the static map data local to each device. This extraction approach maintains view consistency while minimizing transmission time.
3Productivity
If annotations and view updates are shared in real-time, then collaboration effectiveness improves, but network bandwidth requirements increase
Solution Approach 1:
Instead of transmitting original map data, the system creates and transmits lightweight copies of view information consisting of location coordinates and annotation data. These copies enable real-time collaboration effectiveness while consuming minimal network bandwidth compared to transmitting full map data.
Data Source
AI summary
A method includes displaying a view of a physical environment on a display of a first electronic device using map data stored locally on the first electronic device. The method also includes receiving a user input comprising at least one annotation for the view. The method further includes displaying a revised view of the physical environment on the display, the revised view comprising the at least one annotation. In addition, the method includes transmitting view information about the revised view to one or more second electronic devices, the view information comprising location information and the at least one annotation without the map data. The transmitted view information is configured to enable the one or more second electronic devices to generate and display the revised view on a corresponding display using second map data stored locally on the one or more second electronic devices.