Information Terminal Dynamic Search Method Selection
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Solution Overview
Problem
Navigation devices face increased processing loads and slower response times as search conditions become more complex, and stored facility information becomes outdated, leading to inefficient search and retrieval of points of interest.
Innovation Solution
An information terminal with facility storage means, first and second facility search means, search method determination means, and result displaying means, which determines whether to use local or remote search methods based on search conditions to optimize the search and retrieval process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If local search is used to reduce processing load, then processing speed is improved, but information currency deteriorates
Solution Approach 1:
The patent implements dynamic search method selection that adapts based on search conditions. The system determines whether to use local or remote search by evaluating factors such as search condition complexity and data currency requirements, allowing the search strategy to be optimized in real-time for each query rather than using a fixed approach
Solution Approach 2:
The patent divides the search function into two separate search methods: local search for simple, fast queries and remote search for complex or currency-critical queries. This segmentation allows each search type to be optimized independently, with local search handling routine requests and remote search handling sophisticated requests that require up-to-date information
2Loss of information
If remote search is used to ensure information currency, then information quality is improved, but processing time increases
Solution Approach 1:
The system dynamically selects between local and remote search methods based on the specific search conditions and requirements. For queries where information currency is critical, remote search is selected despite longer processing time, while for less critical queries, local search is used to minimize delay
Solution Approach 2:
The patent changes the search execution parameters (local vs. remote) based on the complexity and requirements of the search condition. This parameter adjustment allows the system to optimize the balance between information currency and processing time for each specific search request
3Measurement precision
If complex search conditions are applied to improve search accuracy, then retrieval precision is improved, but processing load increases
Solution Approach 1:
The patent segments complex search conditions into components that can be evaluated to determine search method. By analyzing the complexity level of search conditions, the system can route simple conditions to local search and complex conditions to remote search, managing processing load effectively
Solution Approach 2:
The system dynamically adjusts the search execution strategy based on the complexity of search conditions. For complex search conditions that require high accuracy, the system selects remote search which has greater processing capacity, while simpler conditions are handled by local search to reduce overall processing load
Data Source
AI summary
The present invention provides a technology capable of allowing a user to search and retrieve facilities in an appropriate manner. An information terminal includes a facility storage unit for storing information on facilities, a first facility search unit for searching and retrieving the facilities stored based on a designated search condition, and a second facility search unit for requesting, via a network, a facility information providing device for providing the information on the facilities to provide facility information based on the designated search condition. It is determined which of the first and second facility search units is to be used to search and retrieve the facilities, and the results retrieved by the first or the second unit are displayed.