Floor Plan Device Registration Using RF Fingerprint Localization

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Solution Overview

Problem

Traditional building systems face challenges in efficiently learning and registering distributed devices, as they require manual input and physical presence for device location mapping, leading to time-consuming and error-prone processes, especially in large installations with varied communication technologies.

Innovation Solution

A method involving a central panel or server that discovers, localizes, and authorizes devices using a mobile device, allowing flexible sequencing of device registration steps, including verification of signal quality and use of pre-defined thresholds, and utilizing RF signal fingerprints for precise location determination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual input and physical presence are used for device location mapping, then device registration can be completed, but the process becomes time-consuming and error-prone

Engineering Contradiction:
Improvedevice registration accuracyVSAvoiddevice registration time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical processes (physical presence at device locations, hand-written notes, manual data entry) with automated electronic systems. Mobile devices capture device locations and communication technologies automatically, eliminating the need for technicians to physically visit each device and manually record information, thus reducing both time and errors

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables devices to self-register and self-localize through automated discovery protocols. Devices automatically provide their location information and communication technology details to the central panel without requiring manual intervention, allowing the registration process to occur autonomously and efficiently

Inventive Principle:
Principle #25Self-service

2Quantity of substance

If traditional device registration methods are used, then device locations can be recorded, but the process requires complete walkthrough of the building and is error-prone

Engineering Contradiction:
Improvedevice location informationVSAvoiddevice registration efficiency
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The patent creates a universal registration system that handles multiple device types, locations, and communication technologies through a single integrated process. The central panel and mobile device platform can register any device anywhere in the building using the same automated protocol, eliminating the need for separate manual procedures for different scenarios

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system replaces the mechanical process of walking through the building with automated electronic discovery and localization. RF signal fingerprints and other automated technologies capture device locations without requiring physical traversal of the entire building, dramatically improving productivity while capturing complete device information

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If RF received signal strength is used for triangulation, then relative device positions can be estimated, but the method is not always accurate for computing distances within buildings

Engineering Contradiction:
Improvedevice position accuracyVSAvoiddistance computation reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent changes the parameters used for localization from simple RF signal strength triangulation to a multi-parameter approach including RF signal fingerprints, device identifiers, and floor plan data. This combination of parameters provides more reliable and accurate location determination in complex building environments where single-parameter methods fail

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system introduces floor plan maps and device tables as intermediary reference structures that mediate between raw signal data and final location determination. These intermediaries provide contextual information about building layout and device identities, enabling more accurate position computation by combining signal data with spatial and identification context

Inventive Principle:
Principle #24Intermediary (Mediator)

4Adaptability or versatility

If different learning and registration procedures are used for each communication technology, then each technology can be properly registered, but installers must understand and use multiple different procedures

Engineering Contradiction:
Improvecommunication technology compatibilityVSAvoidinstaller operation simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent creates a universal registration platform that automatically adapts to different communication technologies (RF, wired, wireless) through a single unified interface. The system detects the device type and automatically applies the appropriate registration protocol, allowing installers to register any device using the same simple process without needing to learn multiple different procedures

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method streamlines the device registration process, reducing errors and time consumption by enabling automated localization and authorization, and accommodating diverse communication technologies, thus improving the efficiency of device learning and registration in complex installations.

Implementation Method 1

utilizing RF signal fingerprints for precise location determination

Methodology Applied
Scientific EffectRF signal fingerprinting:

Implementation Method 2

verifying link quality with each of the devices before registering the devices with the central panel by comparing signal quality between each device and a central panel with a pre-defined threshold level

Methodology Applied
Scientific EffectSignal quality comparison:

Data Source

PatentUS11356519B2Floor-plan based learning and registration of distributed devices
Publication Date: 2022.06.07 CARRIER CORP
  • US11356519B2 patent drawing
  • US11356519B2 patent drawing
  • US11356519B2 patent drawing

AI summary

A method of registering distributed devices includes discovering a plurality of devices at a central panel or server, localizing the devices, and authorizing the devices with a mobile device communicating with the central panel or server. The method also includes registering the devices with the central panel. The model can include verifying link quality with each of the devices before registering the devices with the central panel by comparing signal quality between each device and a central panel with a pre-defined threshold level.