Synchronous EM Pulse Proximity Detection for High-Speed Vehicle Tracking
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Solution Overview
Problem
Existing electromagnetic energy-based distance measuring systems are inefficient for high-speed applications and unsuitable for environments with multiple transmitters, and GPS tracking is unavailable underground, necessitating a more effective position and proximity detection system.
Innovation Solution
A system utilizing a vehicle emitter to send high RF signals synchronously with EM pulses, received by a remote unit with a magnetic field receiver and RF transceiver, which determines proximity based on the magnetic field strength, and an on-board navigation system with beacons for position determination without external references.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional EM-based distance measuring systems use low frequency EM signals for transmission, then data can be transmitted on the carrier, but the distance measurement time becomes quite long and is not suitable for high-speed applications
Solution Approach 1:
The system uses periodic EM pulses instead of continuous low-frequency carriers. The emitter transmits short, synchronized EM pulses at high repetition rates, enabling rapid distance measurements while maintaining signal integrity through periodic timing patterns.
Solution Approach 2:
The system replaces traditional mechanical or low-frequency EM modulation methods with synchronous EM pulse timing. Distance is measured by timing the synchronization between emitter and receiver pulses, substituting slow modulation with fast temporal synchronization.
2Quantity of substance
If EM-based systems use low frequency carriers for data transmission, then data can be modulated on the carrier, but the maximum number of competing transmitters that may be reliably identified within a given space is reduced
Solution Approach 1:
The system segments the transmission medium by assigning unique synchronization codes to different transmitters. Each transmitter is identified by its unique timing pattern, allowing multiple transmitters to operate simultaneously in the same space without interference, effectively segmenting the identification space.
Solution Approach 2:
The synchronization signal acts as an intermediary that enables transmitter identification. By using synchronized EM pulses with unique timing patterns as intermediaries, the system can reliably identify multiple competing transmitters without direct signal collision.
3Reliability
If EM transmitters negotiate transmission slots in real-time to avoid on-air collisions, then collision avoidance is achieved, but the distance update periods increase to seconds rather than milliseconds in environments with fluid transmitter numbers
Solution Approach 1:
The system performs preliminary synchronization setup where transmitters are pre-configured with unique synchronization codes and timing patterns. This preliminary action eliminates the need for real-time negotiation, allowing transmitters to operate autonomously without collision from the start.
Solution Approach 2:
Each transmitter independently maintains its synchronization timing without needing to negotiate with other transmitters. The system is self-regulating through pre-assigned timing patterns, allowing each transmitter to serve itself and eliminating centralized coordination overhead.
4Measurement precision
If GPS tracking is used to determine vehicle position, then position can be determined for above ground applications, but the system is not available underground
Solution Approach 1:
The EM pulse synchronization system serves multiple functions: it provides both proximity detection and position determination in a single unified system. This multi-functional approach replaces the need for GPS in above-ground applications while enabling operation in underground environments where GPS is unavailable.
Solution Approach 2:
The system replaces GPS satellite-based positioning with local EM pulse timing synchronization. By substituting external satellite signals with local synchronized EM pulses, the system achieves position determination functionality that works both above and below ground.
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 system significantly reduces distance measurement time, allows more vehicles in a given area, and provides accurate proximity detection and position determination, even in complex environments like underground mines, with reduced interference and increased operational safety.
Implementation Method 1
The receiver unit includes a magnetic field receiver, an RF transceiver, and a processing module coupled to the RF transceiver and the magnetic field receiver. The receiver unit is configured to receive the high RF signal and the at least one EM pulse from the vehicle and to determine a proximity of the vehicle to the receiver unit based on at least one of the high RF signal or the at least one EM pulse.
Data Source
AI summary
A system includes a first vehicle having an emitter configured to emit a high RF signal synchronously with at least one EM pulse, and a receiver unit located remote from the first vehicle. The receiver unit includes a magnetic field receiver, an RF transceiver, and a processing module coupled to the RF transceiver and the magnetic field receiver. The receiver unit is configured to receive the high RF signal and the at least one EM pulse from the first vehicle and to determine a proximity of the first vehicle to the receiver unit.