CN114509820A

CN114509820A - Metal signal detector

Info

Publication number: CN114509820A
Application number: CN202210173683.5A
Authority: CN
Inventors: 吴联杰; 林贤算; 陈祥涛; 林锡兴; 陈建国
Original assignee: Wenzhou Hongde Instrument Technology Co ltd
Current assignee: Wenzhou Hongde Instrument Technology Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-05-17

Abstract

The invention relates to the technical field of security detection, in particular to a metal signal detector which comprises one or more detection modules and a central processing mechanism, wherein when no signal exists, the detection modules are electrified, the internal current of a metal product is changed when the metal product approaches, the change is processed into an electric signal and sent to the central processing mechanism, and the existence condition of the metal signal is finally determined through a built-in algorithm of the central processing mechanism so as to realize the detection of metal. The invention realizes miniaturization, can be directly installed and fixed in the glove, and can help security inspection and law enforcement personnel to search illegal metal objects; the use is more convenient, the glove is integrated in the glove, and a certain concealing function is realized; meanwhile, the safety inspection and the law enforcement personnel can conveniently use the system at any time and any place, and the inconvenience in carrying the equipment is reduced.

Description

Metal signal detector

Technical Field

The invention relates to the technical field of security detection, in particular to a metal signal detector.

Background

With the development of society, people flow frequently and large activities are increased. Because individual personnel lack the consciousness of safety, law and regulation, certain potential safety hazards exist when people take public transportation and participate in large-scale activities with some prohibited metal objects. This brings huge work burden to security personnel, especially can not be carried out when meeting the sudden urgent need to carry out quick investigation.

The metal detection equipment in the current market is mainly fixed and handheld, and has the defects of large volume, heavy weight, poor concealment and the like. The use and carrying are not convenient enough, and due to the large size and obvious target, part of illegal molecules may find security check points in advance and specially avoid the check.

Based on the situation, a new generation of portable metal signal detector is developed through continuous research and exploration, the detector is arranged in gloves of workers, and the workers sense whether passengers carry illegal metal objects or not through the inductor when searching suspicious people, so that potential safety hazards can be avoided in advance.

Disclosure of Invention

Aiming at the defects of the prior art, the invention discloses a metal signal detector which is used for solving the problems.

The invention is realized by the following technical scheme:

the invention provides a metal signal detector which comprises one or more detection modules and a central processing mechanism, wherein when no signal exists, the detection modules are electrified with current, the internal current of a metal product is changed when the metal product approaches, the change is processed into an electric signal and sent to the central processing mechanism, and the existence condition of a metal signal is finally determined through a built-in algorithm of the central processing mechanism so as to realize the detection of the metal.

Furthermore, the detection module comprises a detection induction module, a detection signal processing module and a detection signal amplification module.

Furthermore, the detection induction module is formed by winding a pure copper coil, and the detection induction module detects the metal and generates current signal changes when encountering the metal.

Furthermore, the detection signal processing module is used for processing the current signal change generated by the detection induction module.

Furthermore, the detection signal amplification module is used for amplifying the signal processed by the detection signal processing module and sending the amplified signal to the central processing mechanism.

Furthermore, the central processing mechanism comprises an MCU signal processing module, an early warning module and a power switch circuit.

Furthermore, the MCU signal processing module analyzes the signal transmitted by the detection signal amplifying module, and judges the detection target after arithmetic operation.

Furthermore, when the MCU signal processing module judges that the metal detection object exists, the early warning module is controlled to carry out early warning.

Further, the early warning module is a linear motor or other early warning products.

Furthermore, the power switch circuit is connected with a 6-9V power supply.

The invention has the beneficial effects that:

the invention realizes miniaturization and portability, can be directly installed and fixed in the glove, and can help security inspection and law enforcement personnel to search illegal metal objects; the use is more convenient, the glove is integrated in the glove, and a certain concealing function is realized; meanwhile, the safety inspection and the law enforcement personnel can conveniently use the system at any time and any place, and the inconvenience in carrying the equipment is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the working principle of the detector of the present invention;

FIG. 2 is a schematic circuit diagram of the detector of the present invention;

FIG. 3 is a diagram of a back side of a PCB trace according to an embodiment of the present invention;

FIG. 4 is a front view of a PCB trace according to an embodiment of the present invention;

FIG. 5 is a silk screen of an embodiment of the present invention;

FIG. 6 is a diagram of a product entity according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, the present embodiment provides a metal signal detector, which includes one or more detection modules and a central processing unit, wherein when there is no signal, the detection module is powered on with current, and when a metal product approaches, the detection module changes its internal current and processes the change into an electrical signal, and sends the electrical signal to the central processing unit, and the central processing unit finally determines the existence of a metal signal through a built-in algorithm, so as to implement detection of metal.

The detection module of the embodiment comprises a detection induction module, a detection signal processing module and a detection signal amplification module.

The central processing mechanism of the embodiment comprises an MCU signal processing module, an early warning module and a power switch circuit.

The present embodiment uses the electromagnetic induction principle, and there will be a set of electric current through the coil when there is no signal, and the signal is stable and does not fluctuate, and what the MUC received is fixed signal. When metal is encountered, the magnetic field of the coil can be changed, the change of current passing is influenced, and the receiving end receives the changed signal and then processes and amplifies the signal through a related circuit; the data is transmitted to the MCU, the MCU processes the data, and whether a metal signal exists is judged through an algorithm, so that the aim of detecting the metal is fulfilled.

Example 2

In a specific implementation aspect, this embodiment provides a metal signal detection glove (circuit shown in fig. 2), which is formed by combining a detection sensing module, a detection signal processing module, a detection signal amplifying module, an MCU signal processing module, an early warning module, and a power switch circuit.

The induction module is surveyed by pure copper coil winding to form to this embodiment, surveys through surveying induction module, and the electric current that produces when meetting the metal changes, handles through signal processing module, carries out signal amplification module and enlargies the back, carries out the analysis by MCU signal processing module to the signal, through algorithm operation back, judges out the detection target, carries out the early warning through early warning module again, realizes the early warning to metal detection.

Referring to fig. 3 to 6, the detection induction module 1 of the present embodiment is formed by winding pure copper wires, and a schematic diagram shows a test coil, where a finished coil is subjected to a secondary sealing process.

The circuit part of the mainboard chip of the embodiment is a detection signal processing module, a detection signal amplifying module and an MCU signal processing module; the detection condition in the effective range of the detector is judged by monitoring the real-time current passing through the detection coil.

In this embodiment, when metal exists, the signal changes, the MCU receives the signal and performs data algorithm processing and comparison to determine whether there is a detected object, and when there is a detected object, the MCU controls the vibrating motor to vibrate to remind the user that metal has been detected.

The early warning module 4 of this embodiment is composed of a high-performance linear motor. The switch control circuit 2 of this embodiment is turned on by short pressing in the power-off state, and turned off by short pressing in the power-on state.

The power switch circuit 3 of this embodiment is a power input, and supports the input of 6-9V power input (this embodiment suggests using conventional 9V square battery)

In conclusion, the invention realizes miniaturization and portability, can be directly installed and fixed in the glove, and can help security inspection and law enforcement personnel to search illegal metal objects; the use is more convenient, the glove is integrated in the glove, and a certain concealing function is realized; meanwhile, the safety inspection and the law enforcement personnel can conveniently use the system at any time and any place, and the inconvenience in carrying the equipment is reduced.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A metal signal detector is characterized by comprising one or more detection modules and a central processing mechanism, wherein when no signal exists, the detection modules are electrified with current, the current in a metal product is changed when the metal product approaches, the change is processed into an electric signal and sent to the central processing mechanism, and the existence condition of a metal signal is finally determined through a built-in algorithm of the central processing mechanism so as to realize the detection of the metal.

2. The metal signal detector of claim 1, wherein the detection module comprises a detection sensing module, a detection signal processing module and a detection signal amplifying module.

3. The metal signal detector of claim 2, wherein the detection sensing module is made of a pure copper coil, and the detection sensing module detects a change in current signal when encountering metal.

4. The metal signal detector of claim 2, wherein the detection signal processing module is configured to process the current signal variation generated by the detection sensing module.

5. The metal signal detector according to claim 2, wherein the detection signal amplifying module is configured to amplify the signal processed by the detection signal processing module and send the amplified signal to a central processing unit.

6. The metal signal detector as claimed in claim 1, wherein the central processing unit comprises an MCU signal processing module, an early warning module and a power switch circuit.

7. The metal signal detector according to claim 6, wherein the MCU signal processing module analyzes the signal transmitted by the detection signal amplification module, and determines the detection target after arithmetic operation.

8. The metal signal detector of claim 7, wherein the MCU signal processing module controls the pre-warning module to perform pre-warning when the MCU signal processing module determines that the metal detector exists.

9. A metal signal detector as claimed in claim 6 or 7 wherein the early warning module is a linear motor or other early warning product.

10. The metal signal detector as claimed in claim 6, wherein the power switch circuit is connected to a 6-9V power supply.