Node Positioning via Relative Movement Data
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Solution Overview
Problem
Existing positioning methods face challenges in accurately positioning objects in areas with weak satellite signals or where traditional three-point reference points are unavailable, such as between moving ships or vehicles in satellite signal-deprived regions.
Innovation Solution
A method that establishes a connection between a source node and a target node, acquires initial and real-time position information through directional and distance measurements, and uses this data to calculate the target node's position using a system of equations based on the movement trends of both nodes, allowing for positioning even without traditional three-point references.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional three-point positioning method is used, then positioning can be achieved in open areas, but positioning fails in areas with weak satellite signals or without three reference points
Solution Approach 1:
The patent introduces communication signals as an intermediary medium to transfer positioning information between nodes. The source node sends positioning requests and receives feedback from the target node, using these signal exchanges to calculate relative position without requiring traditional satellite signals or three fixed reference points. This intermediary communication mechanism enables positioning in environments where satellite signals are unavailable.
Solution Approach 2:
The patent transitions from static three-point positioning to dynamic two-node relative positioning. Instead of requiring three fixed reference points, the system uses the movement and position changes of two nodes over time to establish positioning relationships. The source node and target node dynamically exchange position information, allowing the system to adapt to moving objects and changing environments while maintaining positioning capability.
2Ease of operation
If satellite-based positioning is used, then positioning is simple in open areas, but positioning becomes unavailable in areas with weak satellite signals
Solution Approach 1:
The patent replaces the satellite-based electromagnetic positioning system with a node-to-node communication-based positioning system. Instead of relying on satellite signals to directly provide position information, the system uses communication signals exchanged between source and target nodes to calculate relative position through signal transmission time and direction measurements, making the system independent of satellite signal availability.
Solution Approach 2:
The patent makes the positioning system universal by enabling it to function in multiple environments - both open areas with satellite signals and limited signal areas without satellite signals. The same basic mechanism of exchanging positioning requests and feedback works in both scenarios, allowing the system to adapt to different environmental conditions and provide positioning services wherever nodes can communicate.
3Measurement precision
If multiple real-time position information is acquired, then positioning accuracy is improved, but measurement time and data processing complexity increase
Solution Approach 1:
The patent performs preliminary actions by first establishing connection between nodes, exchanging initial position information, and setting up the positioning request-response mechanism before actual positioning calculations are needed. This preliminary setup optimizes the subsequent measurement process, allowing efficient acquisition of real-time position information without repeated complex calculations, thus reducing total measurement time while maintaining accuracy.
Solution Approach 2:
The patent implements a feedback mechanism where the target node returns feedback information containing its position and movement data to the source node. This feedback loop enables the source node to continuously update the relative position calculation using the most current information, improving accuracy over time without requiring excessive measurements. The feedback mechanism allows the system to converge on accurate positioning results more efficiently.
Data Source
AI summary
The embodiment of the present disclosure provides a positioning method, a positioning device and system, an electronic equipment and a computer readable medium. The positioning method comprises: establishing connection with a target node in response to feedback information returned by the target node; acquiring initial position information; acquiring real-time position information for multiple times; and positioning the target node according to the acquired initial position information and the real-time position information acquired for multiple times. wherein the real-time position information comprises the direction and the distance of the movement of the source node relative to the last position of the source node, the direction and the distance of the movement of the target node returned by the target node relative to the last position of the target node, and the distance between the target node and the source node.