US-12625293-B2 - Frequency-modulation type metal tracker

US12625293B2US 12625293 B2US12625293 B2US 12625293B2US-12625293-B2

Abstract

Disclosed is a frequency-modulation type metal tracker, relating to the technical field of detecting instruments. The frequency-modulation type metal tracker includes a metal tracking transmitter which can modulate a wireless frequency-modulation tracking signal and broadcast the wireless frequency-modulation tracking signal to the outside through a metal object, and a metal tracking receiver which can receive the wireless frequency-modulation tracking signal from the metal tracking transmitter, demodulate the wireless frequency-modulation tracking signal, and reproduce information of the wireless frequency-modulation tracking signal. The present disclosure mainly solves the problem of how to provide equipment that can remotely detect and track metal objects. The frequency-modulation type metal tracker can detect and track metal objects such as wires and cables, steel bars, metal water supply and drainage pipes, metal heating and ventilation pipes, and metal racks which are buried in walls, under the ground, and in large objects, to facilitate use by operating personnel.

Inventors

Chi Kang Ronald Chou

Assignees

MEET ELECTRONICS LTD.
Chi Kang Ronald Chou

Dates

Publication Date: 20260512
Application Date: 20231128
Priority Date: 20221215

Claims (7)

1 . A frequency-modulation type metal tracker, comprising a metal tracking transmitter and a metal tracking receiver, wherein the metal tracking transmitter modulates a wireless frequency-modulation tracking signal and broadcasts the wireless frequency-modulation tracking signal to the outside through a metal object; and the metal tracking receiver receives the wireless frequency-modulation tracking signal from the metal tracking transmitter, demodulates the wireless frequency-modulation tracking signal, and reproduces information of the wireless frequency-modulation tracking signal; wherein the metal tracking transmitter comprises a main control U 1 and a wireless frequency-modulation tracking signal transmission module, and the wireless frequency-modulation tracking signal transmission module is in signal connection to the main control U 1 ; the metal tracking receiver comprises a main control U 2 , an interaction module, and a wireless frequency-modulation tracking signal receiving module; and the interaction module and the wireless frequency-modulation tracking signal receiving module are both in signal connection to the main control U 2 ; wherein the wireless frequency-modulation tracking signal transmission module comprises a signal amplifier submodule, a power regulation submodule, and a first magnetic rod antenna submodule; a signal input end of the signal amplifier submodule is connected to a pin PWM 0 and a pin PWM 1 of the main control U 1 , respectively; a signal input end of the power regulation submodule is connected to a pin S 0 and a pin S 1 of the main control U 1 ; the power regulation submodule, the signal amplifier submodule, and the first magnetic rod antenna submodule are in signal connection to each other in sequence; the wireless frequency-modulation tracking signal receiving module comprises a signal demodulation submodule and a second magnetic rod antenna submodule; the second magnetic rod antenna submodule is in signal connection to the signal demodulation submodule; and a signal output end of the signal demodulation submodule is connected to a pin PWM 0 and a pin PWM 1 of the main control U 2 .
2 . The frequency-modulation type metal tracker according to claim 1 , wherein the information of the wireless frequency-modulation tracking signal at least comprises existence and intensity of the wireless frequency-modulation tracking signal.
3 . The frequency-modulation type metal tracker according to claim 1 , wherein the interaction module of the metal tracking receiver is at least one of a button module, an indicator lamp module, or a buzzer module.
4 . The frequency-modulation type metal tracker according to claim 1 , wherein the metal tracking receiver further comprises an NCV induction module, and the NCV induction module is in signal connection to the main control U 2 .
5 . The frequency-modulation type metal tracker according to claim 4 , wherein the NCV induction module comprises an induction sheet and a semiconductor device Q 2 ; the induction sheet is connected to a control pole of the semiconductor device Q 2 ; one pole of the semiconductor device Q 2 is connected to a universal input/output pin of the main control U 2 ; and the other pole of the semiconductor device Q 2 is grounded.
6 . The frequency-modulation type metal tracker according to claim 5 , wherein the metal tracking transmitter further comprises a first Bluetooth module, and the first Bluetooth module is connected to a pin TX and a pin RX of the main control U 1 , respectively; the metal tracking receiver further comprises a second Bluetooth module; and the second Bluetooth module is connected to a pin TX and a pin RX of the main control U 2 , respectively.
7 . The frequency-modulation type metal tracker according to claim 6 , wherein the metal tracking transmitter further comprises at least one of a button module, an indicator lamp module, or a buzzer module which is in signal connection to the main control U 1 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This is a U.S. patent application which claims the priority and benefit of Chinese Patent Application Number 202211613331.3, filed on Dec. 15, 2022, the disclosure of which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present disclosure relates to the technical field of detecting instruments, and in particular, to a frequency-modulation type metal tracker. BACKGROUND In scenarios such as construction engineering, industrial sites, inspection engineering, fire rescue, and safety hazard investigation, it is often necessary to detect and track metal objects such as wires and cables, steel bars, metal water supply and drainage pipes, metal heating and ventilation pipes, and metal racks which are buried in walls, under the ground, and in large objects, so as to provide reference information for further operations. However, in some scenarios with harsh environments (such as fires, floods, earthquakes, construction sites, and industrial sites), it is often difficult for operating personnel to directly detect and track the metal objects described above, which makes operations inconvenient. In summary, how to provide equipment that can remotely detect and track metal objects has become an urgent problem to be solved. SUMMARY The present disclosure aims to provide a frequency-modulation type metal tracker, which can remotely detect and track metal objects. In order to achieve the above objective, the present disclosure provides the following technical solution: A frequency-modulation type metal tracker includes a metal tracking transmitter and a metal tracking receiver; the metal tracking transmitter can modulate a wireless frequency-modulation tracking signal and broadcast the wireless frequency-modulation tracking signal to the outside through a metal object; and the metal tracking receiver can receive the wireless frequency-modulation tracking signal from the metal tracking transmitter, demodulate the wireless frequency-modulation tracking signal, and reproduce information of the wireless frequency-modulation tracking signal. In the above technical solution, the information of the wireless frequency-modulation tracking signal at least includes existence and intensity of the wireless frequency-modulation tracking signal. In the above technical solution, the metal tracking transmitter includes a main control U1 and a wireless frequency-modulation signal transmission module, and the wireless frequency-modulation tracking signal transmission module is in signal connection to the main control U1; the metal tracking receiver includes a main control U2, an interaction module, and a wireless frequency-modulation signal receiving module; and the interaction module and the wireless frequency-modulation signal receiving module are both in signal connection to the main control U2. In the above technical solution, the wireless frequency-modulation signal transmission module includes a signal amplifier submodule, a power regulation submodule, and a first magnetic rod antenna submodule; a signal input end of the signal amplifier submodule is connected to a pin PWM0 and a pin PWM1 of the main control U1, respectively; a signal input end of the power regulation submodule is connected to a pin S0 and a pin S1 of the main control U1; the power regulation submodule, the signal amplifier submodule, and the first magnetic rod antenna submodule are in signal connection to each other in sequence; the wireless frequency-modulation signal receiving module includes a signal demodulation submodule and a second magnetic rod antenna submodule; the second magnetic rod antenna submodule is in signal connection to the signal demodulation submodule; and a signal output end of the signal demodulation submodule is connected to a pin PWM0 and a pin PWM1 of the main control U2. In the above technical solution, the interaction module of the metal tracking receiver is at least one of a button module, an indicator lamp module, or a buzzer module. In the above technical solution, the metal tracking receiver further includes an NCV induction module, and the NCV induction module is in signal connection to the main control U2. In the above technical solution, the NCV induction module includes an induction sheet and a semiconductor device Q2; the induction sheet is connected to a control pole of the semiconductor device Q2; one pole of the semiconductor device Q2 is connected to a universal input/output pin of the main control U2; and the other pole of the semiconductor device Q2 is grounded. In the above technical solution, the metal tracking transmitter further includes a first Bluetooth module, and the first Bluetooth module is connected to a pin TX and a pin RX of the main control U1, respectively; the metal tracking receiver further includes a second Bluetooth module; and the second Bluetooth module is connected to a pin TX and a pin RX of the main control U2, respectively. In the above