Self-Moving Node Positioning in Blind Areas
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Solution Overview
Problem
In self-moving network systems, positioning of self-moving nodes in blind areas is challenging due to noise in location sensor data and the inability to deploy a large number of fixed nodes, leading to significant location information deviations and positioning errors.
Innovation Solution
The method involves obtaining location information from non-fixed nodes, determining positioning information using this data, and broadcasting it to enable self-moving nodes in blind areas to determine their position, even when fixed nodes are unavailable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large quantity of fixed nodes are deployed to improve positioning coverage, then positioning blind areas are reduced, but deployment cost and system complexity increase significantly
Solution Approach 1:
The patent transforms the traditional static fixed-node positioning system into a dynamic system where mobile nodes can freely move and provide positioning services. Instead of deploying numerous fixed nodes throughout the area, mobile nodes dynamically provide positioning information to self-moving nodes based on their current locations, achieving flexible coverage without permanent infrastructure.
Solution Approach 2:
Mobile nodes in the system not only receive positioning services but also actively provide positioning information to others. Each mobile node that determines its location can broadcast this information to help other self-moving nodes in blind areas, creating a self-sustaining positioning network that reduces dependency on fixed infrastructure.
2Ease of operation
If location sensor data is used for positioning, then positioning can be obtained without fixed nodes, but noise in the data causes significant location deviations
Solution Approach 1:
The patent introduces mobile nodes as intermediary elements between self-moving nodes and the positioning system. Instead of directly relying on noisy location sensor data, self-moving nodes obtain positioning information by receiving and processing location information broadcast by mobile nodes, which have performed more sophisticated positioning calculations using multiple reference points.
Solution Approach 2:
Mobile nodes perform positioning calculations in advance by collecting location information from multiple fixed nodes and determining their own positions using algorithms like triangulation or multilateration. This preliminary positioning work is then broadcast to self-moving nodes, eliminating the need for them to perform complex calculations and reducing the impact of sensor noise.
3Measurement precision
If only fixed nodes are used for positioning, then positioning information can be obtained in covered areas, but self-moving nodes in blind areas cannot be positioned
Solution Approach 1:
The patent makes mobile nodes universal entities that can both consume positioning services and provide positioning services. Mobile nodes function as dual-purpose elements: they receive positioning information when in blind areas and broadcast this information to help other nodes, thereby extending the system's effective coverage beyond what fixed nodes alone can provide.
Solution Approach 2:
The patent adds a new dimension to the positioning system by introducing mobile nodes that move through three-dimensional space. This creates a dynamic spatial network where positioning information propagates not just from fixed points on the ground but from moving entities throughout the volume, enabling coverage in previously inaccessible blind areas.
Data Source
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AI summary
Embodiments of the present invention disclose a positioning method and apparatus, which relate to the field of information technologies, and can position a self-moving node that is in a blind area. The method includes: first obtaining location information by using at least one non-fixed node, then determining positioning information according to the location information, and finally broadcasting the positioning information. The embodiments of the present invention are applicable to positioning of a self-moving node.