Wireless Node Topology for Unobstructed Automotive Signal Paths
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Solution Overview
Problem
Wireless networks in automotive passenger compartments face reliability issues due to obstructions such as seats and passengers, which impede signal transmission and result in lower performance compared to wired networks.
Innovation Solution
A wireless network arrangement that includes at least one intermediate node to relay signals, positioned to create an unobstructed path between the transmitter and receiver, using multiple wireless electronic nodes with a broadcast range greater than the enclosure's dimensions, and forming communication paths exclusively of joined linear segments to avoid obstructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless networks are used in automotive passenger compartments, then ease of deployment and functionality are improved, but reliability deteriorates due to obstructions impeding signal transmission
Solution Approach 1:
The patent introduces intermediate wireless nodes (relay nodes) that act as mediators to forward signals between transmitters and receivers when direct line-of-sight is blocked by obstructions such as seats or passengers. These intermediate nodes are strategically positioned to maintain unobstructed communication paths, thereby preserving reliability while keeping the wireless architecture easy to deploy.
2Reliability
If intermediate nodes are added to relay signals around obstructions, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent segments the wireless communication path into multiple hops through intermediate nodes, where each node independently handles signal forwarding. This segmentation allows the system to bypass obstructions without requiring a complete redesign of the network architecture, managing complexity by breaking down the communication task into manageable segments.
Solution Approach 2:
The patent employs dynamic node selection and path routing where intermediate nodes are activated based on real-time obstruction detection. The network dynamically adjusts communication paths by selecting optimal intermediate nodes, maintaining reliability while minimizing the number of active nodes to reduce overall system complexity.
3Reliability
If multiple wireless nodes are positioned to create unobstructed paths, then signal transmission reliability is improved, but manufacturing and deployment complexity increases
Solution Approach 1:
The patent performs preliminary positioning of intermediate nodes during system setup, using pre-calculated optimal locations that anticipate potential obstructions. This preliminary action ensures that nodes are placed in positions that maximize unobstructed communication paths before actual deployment, reducing on-site adjustment requirements and simplifying the manufacturing and deployment process.
Data Source
AI summary
A wireless network arrangement includes a space having a hindrance to wireless communication. The hindrance includes a fixed barrier and/or a three-dimensional area for accommodating a moveable barrier. At least three wireless electronic nodes are wirelessly and communicatively coupled to each other. A broadcast range of the nodes is greater than a largest dimension of the enclosure. The hindrance is disposed between a first one of the nodes and a second one of the nodes. The at least three nodes are positioned within the enclosure such that a wireless signal communication path wirelessly and communicatively couples the first one of the nodes to the second one of the nodes. The communication path is non-intersecting with the hindrance. The communication path passes through at least a third one of the nodes. The communication path is formed exclusively of a plurality of joined linear segments. Opposite ends of each linear segment are disposed at corresponding ones of the nodes.