Wireless Positioning via Intermediary Node Consolidation
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Solution Overview
Problem
Current wireless communication positioning methods require multiple distance measurements between a to-be-positioned node and anchor nodes, leading to cumbersome processes and low positioning efficiency.
Innovation Solution
A positioning method where a to-be-positioned node sends a request to a first node for device information of multiple second nodes, receives measurement information, and uses this information along with measurement time data to determine its location, reducing the number of distance measurements needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple distance measurements are performed between the to-be-positioned node and anchor nodes to obtain positioning information, then positioning accuracy is improved, but the positioning process becomes cumbersome and efficiency decreases
Solution Approach 1:
The patent introduces a first node as an intermediary that performs distance measurements to multiple second nodes on behalf of the to-be-positioned node. The first node collects measurement information including distances and location data, then provides this consolidated information to the to-be-positioned node. This intermediary approach reduces the number of direct measurements the to-be-positioned node must perform while maintaining positioning accuracy through the use of multiple reference points (second nodes).
Solution Approach 2:
The first node performs preliminary distance measurements to multiple second nodes before the to-be-positioned node needs positioning information. By pre-collecting measurement information including distances, location data, and measurement time information, the system prepares positioning data in advance, reducing the time and complexity required when the actual positioning is needed.
2Loss of information
If the to-be-positioned node directly performs distance measurements with multiple anchor nodes to obtain location information, then measurement data can be obtained, but the process becomes complex and time-consuming
Solution Approach 1:
The first node serves as an intermediary that consolidates measurement information from multiple second nodes. Instead of the to-be-positioned node performing separate measurements with each anchor node, the first node collects distances, location information, and measurement time data from multiple second nodes and provides this comprehensive dataset to the to-be-positioned node, reducing time loss while maintaining information completeness.
Solution Approach 2:
The patent merges multiple measurement operations into a single coordinated process. The first node performs measurements to multiple second nodes and combines the results into consolidated measurement information that includes distances, location data, and timing information. This merging approach reduces the total time required compared to the to-be-positioned node performing separate measurements with each anchor node.
3Reliability
If multiple distance measurements are conducted to ensure accurate positioning, then positioning reliability is improved, but the operational complexity increases
Solution Approach 1:
The first node acts as an intermediary that manages the complexity of multiple distance measurements. It coordinates measurements with multiple second nodes, collects the measurement information, and provides the consolidated data to the to-be-positioned node. This maintains positioning reliability through multiple reference points while simplifying the operation for the to-be-positioned node, which only needs to request and receive information rather than perform multiple complex measurements.
Solution Approach 2:
The first node performs the complex measurement operations autonomously on behalf of the to-be-positioned node. It self-manages the process of measuring distances to multiple second nodes, collecting location information, and organizing measurement time data. This self-service approach maintains reliable positioning data while reducing the operational burden on the to-be-positioned node.
Data Source
AI summary
A positioning method includes sending, by a to-be-positioned node, a first request to a first node, where the first request includes device information of N second nodes, and the N is a positive integer greater than or equal to one, receiving measurement information from the first node, where the measurement information includes location information of the N second nodes and distances between the first node and the N second nodes, and obtaining location information of the to-be-positioned node according to the measurement information and measurement time information obtained through monitoring a process in which the first node performs distance measurement.