Geo-locational Query With Time Stamp For Accurate Object State Retrieval
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Solution Overview
Problem
Geographic queries made with mobile devices often return irrelevant results due to changes in the location or state of objects between the time of query and the time of processing, as existing systems lack the ability to capture and utilize time-stamped information for accurate geo-locational results.
Innovation Solution
A system that generates a geo-positional query with a time stamp, allowing it to identify and return the state of objects at the time of query by processing the query with a database of geolocated objects, incorporating the time stamp to ensure accuracy and relevance in augmented reality, pointing search, and mapping applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a geographic query is processed without time stamping, then the processing speed is faster and system complexity is lower, but the accuracy and relevance of the results deteriorate because objects may have changed or moved between query and processing times
Solution Approach 1:
The system performs preliminary action by capturing the time stamp at the moment the query is generated on the mobile device. This time stamp is attached to the query data before transmission to the server, ensuring that the temporal context is preserved from the outset. This preliminary capture of time information allows the system to later retrieve the accurate state of objects at the specific moment of interest without requiring complex real-time synchronization mechanisms.
Solution Approach 2:
The time stamp serves as an intermediary element that mediates between the query generation moment and the result retrieval moment. By introducing this temporal marker, the system can accurately match query results with the state of objects at the specific time of interest, even when there is a delay in processing. The time stamp acts as a key to retrieve the correct historical state from the database without requiring the system to maintain continuous real-time tracking of all objects.
2Reliability
If the system waits for query processing to complete before returning results, then result accuracy can be verified, but the response time increases causing users to wait longer
Solution Approach 1:
The system performs preliminary action by capturing and storing the time stamp when the query is initially generated on the mobile device, before the query is transmitted to or processed by the server. This ensures that the temporal context is preserved and the processing can proceed efficiently without delaying the user's initial query submission. The time stamp is ready and attached when needed, enabling accurate result retrieval without extending the user-perceived waiting time.
3Loss of information
If the system uses time-based state information from the database, then it can identify objects at their correct historical state, but the database complexity and data storage requirements increase
Solution Approach 1:
The system extracts only the essential time-based information needed for the query - specifically the time stamp captured at query generation and the corresponding state of objects at that time. Rather than storing or processing all possible state changes of all objects, the system extracts and retrieves only the specific temporal snapshot required to answer the user's query. This selective extraction reduces database complexity while maintaining the ability to provide accurate historical state information.
Data Source
AI summary
An application executing on a mobile device generates a geo-positional query including a time stamp representing the time of the query. The application can be, for example, an augmented reality application, a pointing search application, or a mapping application that searches based on geolocation and/or physical proximity. The query can include, in addition to a location, one or more of a direction, orientation, and camera field of view of the mobile device. A system processes the query to return a time-based state of an object and/or location addressed by the mobile device at the time of the query. The system can use the time stamp to identify which objects may have been located at a certain location at a certain time and/or to identify the state of located objects at a certain time. For example, the state of an electronic billboard can identify an advertisement displayed at the time.