Networked Navigation Range Delay Calculation
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Solution Overview
Problem
Existing navigation and ranging systems require specialized and expensive hardware to calculate range, time, and position, especially when GPS signals are unavailable, limiting their cost-effectiveness and versatility across different navigation links.
Innovation Solution
A method and system that calculate range delay by transmitting messages across layers above the OSI model's MAC layer, using standardized service primitives to process data and share information between networked navigation entities, allowing for enhanced navigation and position knowledge across various links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If specialized hardware at the PHY layer and MAC layer is used to calculate range, time and position, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces specialized hardware calculation mechanisms with software-based processing in upper network layers. Instead of using dedicated hardware circuits at the PHY/MAC layer to calculate range and position, the system uses standard network protocols and software algorithms in higher layers to perform these calculations, thereby eliminating the need for complex specialized hardware while maintaining calculation accuracy.
Solution Approach 2:
The patent makes the network layer protocols universal by enabling them to handle multiple functions including standard networking tasks plus navigation and positioning calculations. The same standard network interface can be used for both conventional network communication and for calculating range, time, and position, eliminating the need for separate specialized hardware and reducing overall system complexity.
2Measurement precision
If specialized hardware at the PHY layer and MAC layer is used to calculate range, time and position, then measurement precision is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent replaces expensive specialized hardware with standard network infrastructure components. By moving the calculation functions to the network layer where standard protocols already exist, the system can be manufactured using off-the-shelf network equipment rather than requiring custom-built specialized hardware, significantly improving ease of manufacture and cost-effectiveness.
Solution Approach 2:
The patent uses inexpensive standard network protocols and interfaces that can be easily implemented in existing network equipment. Instead of investing in expensive specialized hardware that would be difficult to manufacture, the system leverages already-standardized, inexpensive network layer components to achieve the same functionality, making the system much more cost-effective to manufacture.
3Measurement precision
If specialized hardware is used for navigation calculations, then measurement precision is improved, but adaptability or versatility deteriorates
Solution Approach 1:
The patent creates a universal navigation system that can operate over any standard network link. By implementing navigation calculations in the network layer using standard protocols, the same system can serve multiple navigation applications and links without requiring link-specific specialized hardware, thereby improving adaptability and versatility across different navigation scenarios.
Solution Approach 2:
The patent replaces specialized hardware solutions with a software-based approach that runs on standard network infrastructure. This substitution enables the system to adapt to different network types and navigation links using the same underlying software architecture, significantly improving versatility while maintaining calculation accuracy through standardized processing methods.
Data Source
AI summary
A system and method for calculating a range delay is presented. A method begins by transmitting a first message at a first transmit time at a lower layer of a first node to a second node. A first service primitive is sent is sent to an upper layer associated with the first node with the first transmit time. A second message is received at the lower layer containing a first receive time of the first message at the second node. A second receive time of the second message is determined and sent with a second service primitive with the first receive time to the upper layer. A range delay is calculated in the upper layer based on one or more of the first transmit time, the first receive time and the second receive time.