Phase-Synchronized Buried Object Locator Using Timing References

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Solution Overview

Problem

Current buried object locator systems face challenges in accurately determining the direction and phase of current flow in buried objects due to phase synchronization issues between transmitters and locators, leading to inefficiencies in locating and mapping buried utilities.

Innovation Solution

The implementation of a phase-synchronized buried object locator system that uses timing synchronization modules to generate and receive phase-synchronized output signals, allowing for accurate determination of current direction and phase by synchronizing both the transmitter and locator with timing references from satellite or terrestrial systems, and adjusting for phase offsets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If phase synchronization is not implemented between transmitter and locator, then the system is simpler to operate, but the measurement precision of current direction and phase deteriorates

Engineering Contradiction:
Improvecurrent direction and phase determination accuracyVSAvoidphase synchronization system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

A timing reference signal serves as an intermediary between the transmitter and locator, providing a common time basis that enables phase synchronization without requiring direct complex communication between the two devices. The timing reference acts as a mediator that both devices independently receive and use to synchronize their operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary synchronization by having both the transmitter and locator independently receive and process timing reference signals before actual locating operations begin. This preliminary timing alignment ensures that subsequent measurements are automatically phase-synchronized without requiring real-time complex coordination.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If timing synchronization modules are added to both transmitter and locator, then measurement precision improves, but device complexity increases

Engineering Contradiction:
Improvephase information accuracyVSAvoidtransmitter and locator system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The timing reference signal serves multiple functions simultaneously: it provides time synchronization, establishes phase relationships, and enables frequency coordination between transmitter and locator. This multi-functionality reduces the need for separate dedicated synchronization hardware and protocols.

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

Solution Approach 2:

Both the transmitter and locator independently receive and process timing reference signals from external sources (such as GPS or other timing sources), enabling each device to self-synchronize without requiring complex inter-device communication or centralized control systems.

Inventive Principle:
Principle #25Self-service

3Productivity

If phase-synchronized output signals are generated using timing references, then productivity of locating operations improves, but device complexity increases

Engineering Contradiction:
Improvelocating and mapping efficiencyVSAvoidsignal generation system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system replaces manual trial-and-error locating methods with automated phase-synchronized signal generation and detection. The timing reference-based synchronization automatically aligns transmitter and locator operations, eliminating the need for manual calibration and significantly improving locating efficiency.

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

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 approach enables precise determination of current direction and phase in buried objects, improving the accuracy and efficiency of locating and mapping buried utilities by ensuring synchronized phase information between the transmitter and locator.

Implementation Method 1

generating a phase-synchronized output signal having a phase determined at least in part by the timing reference

Methodology Applied
Scientific EffectPhase synchronization:

Implementation Method 2

receiving a magnetic field signal associated with a current in a buried object

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 3

receiving a magnetic field signal from a buried object associated with a current in the buried object

Methodology Applied
Scientific EffectMagnetic field detection: Magnetic Field

Data Source

PatentUS12105244B1Phase-synchronized buried object transmitter and locator methods and apparatus
Publication Date: 2024.10.01 SEESCAN INC
  • US12105244B1 patent drawing
  • US12105244B1 patent drawing
  • US12105244B1 patent drawing

AI summary

Buried object locator systems including transmitters and associated buried object locators using phase-synchronized signals are disclosed. A transmitter may generate output current signals that are phase-synchronized with a timing reference for detection by a corresponding buried utility locator that is phase-synchronized with a second timing reference.