Wireless Automation Network Location Stamps for Private Packet Verification
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Solution Overview
Problem
Existing industrial automation systems lack a standardized method for integrating location information into wireless communication protocols without violating layer-based design principles and address privacy concerns.
Innovation Solution
A wireless automation network (WAN) system with source and destination devices that generate and verify location stamps within communication packets using a wireless localization engine and authorization mechanisms to ensure privacy and compliance with layer-based design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If location information is integrated into WAN communication packets, then location accuracy and security are improved, but device complexity increases due to additional authorization mechanisms and location stamps
Solution Approach 1:
The location information is segmented into two separate stamps: source location stamp generated by the wireless localization engine, and destination location stamp generated by the destination location generator. This segmentation allows each component to handle specific location verification tasks independently, improving location accuracy while distributing complexity across modular components rather than concentrating it in a single complex module
Solution Approach 2:
The wireless localization engine and destination location generator perform preliminary location stamp generation and validity flag setting before packet transmission. By pre-computing location stamps and validity flags, the system avoids complex real-time location calculations during packet processing, thereby improving location measurement precision while reducing operational complexity
2Reliability
If location information is transmitted in WAN packets, then security and spoofing detection are improved, but information privacy is compromised
Solution Approach 1:
The invention extracts only the essential location verification elements (location stamps and validity flags) from complete location information and transmits them in WAN packets. This extraction approach provides sufficient security for spoofing detection while minimizing the exposure of detailed location data, thus improving security while preserving information privacy
Solution Approach 2:
Location stamps act as intermediaries that carry location verification information without exposing raw location data. The stamps serve as mediators between the wireless localization engine and application layers, enabling security verification while maintaining privacy by not transmitting actual location coordinates in clear form
3Ease of operation
If cross-layer interface is added for location access, then location information accessibility is improved, but design complexity and standard compliance worsen
Solution Approach 1:
The wireless localization engine and destination location generator are designed as universal components that serve multiple functions: generating location stamps for security verification, setting validity flags for authorization control, and providing location information to multiple application layers simultaneously. This multi-functionality improves location accessibility while avoiding the need for separate cross-layer interfaces for different applications
4Reliability
If authorization mechanisms are implemented for location access, then information privacy protection is improved, but device complexity increases
Solution Approach 1:
Authorization is implemented with local quality by assigning different validity flag values to different location stamps based on specific authorization requirements. The source location stamp and destination location stamp can have independent validity flags, allowing fine-grained privacy control for different location information types without requiring a complex centralized authorization system
Data Source
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AI summary
The invention relates to a wireless automation network, WAN, source device (110), wherein the WAN source device is configured to generate a WAN data packet containing a payload with automation data according to a WAN communication protocol, and to transmit the data packet to a WAN destination device (150); wherein the WAN source device (110) comprises a wireless localization engine (134) configured to generate a source location stamp and at least one packet wrapper (118, 130) configured to insert the source location stamp in the data packet.