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
Engineering 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
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.
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.
2Measurement precision
If timing synchronization modules are added to both transmitter and locator, then measurement precision improves, but device complexity increases
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.
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.
3Productivity
If phase-synchronized output signals are generated using timing references, then productivity of locating operations improves, but device complexity increases
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.
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
Implementation Method 2
receiving a magnetic field signal associated with a current in a buried object
Implementation Method 3
receiving a magnetic field signal from a buried object associated with a current in the buried object
Data Source
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.


