CN113534264A - Search explosion device and method based on battery self-discharge - Google Patents
Search explosion device and method based on battery self-discharge Download PDFInfo
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- CN113534264A CN113534264A CN202110727627.7A CN202110727627A CN113534264A CN 113534264 A CN113534264 A CN 113534264A CN 202110727627 A CN202110727627 A CN 202110727627A CN 113534264 A CN113534264 A CN 113534264A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 239000002360 explosive Substances 0.000 claims abstract description 20
- 230000005674 electromagnetic induction Effects 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000011896 sensitive detection Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
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- 238000007689 inspection Methods 0.000 abstract description 18
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/081—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices the magnetic field is produced by the objects or geological structures
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Abstract
The invention belongs to the technical field of search explosion, and discloses a search explosion device based on battery self-discharge, which comprises an electromagnetic detector, a signal conversion device and a display screen, wherein the signal conversion device comprises an I/V conversion circuit, an amplifying circuit and an operation converter, the electromagnetic detector, the signal conversion device and the display screen are electrically connected, the search explosion method based on battery self-discharge is characterized in that S1: detecting a magnetic field generated by tiny electrons released by a battery in an explosive by using an electromagnetic detector, and converting a magnetic signal into a weak current signal; s2: inputting the weak current signal into an I/V conversion circuit to obtain a weak voltage signal; s3: inputting the weak voltage signal into an amplifying circuit to obtain an amplified voltage signal; s4: outputting the amplified voltage signal as an output voltage using an operational converter; s5: displaying the output voltage on a display screen; the invention solves the problems that the inspection of explosives in the safety inspection of the prior art affects people or animals, has low inspection accuracy and low inspection efficiency, and is suitable for search and explosion inspection.
Description
Technical Field
The invention relates to the technical field of search explosion, in particular to a search explosion device based on battery self-discharge, and further relates to a search explosion method based on battery self-discharge.
Background
With the development and progress of society, at present, whether people take automobiles, airplanes and other transportation trips, or attend various parties, watching or competitions in public places, safety inspection is needed to ensure the safety of people, the safety inspection generally comprises the inspection of whether dangerous goods such as firearms, ammunition, flammability, explosiveness, corrosion, toxic radioactivity and the like are carried in a backpack, and the inspection of explosives is an important item in the safety inspection. The existing explosive generally consists of a battery, a fuse, a detonator, a main charge and a shell, and according to the composition, the current search and explosion work generally adopts the following modes: the trace elements released by the explosive are detected by using the instrument and equipment, but in the detection process, the method is easy to cause confusion with other legal products which can generate the same trace elements, wrong search and explosion information is obtained, and extra work or crowd panic can be caused; the principle that X-rays have different penetrating strengths to substances with different densities is utilized for explosion searching, the X-rays irradiate and penetrate through the backpack, and shadow pictures with different shades appear on the fluorescent screen to judge explosives, but the X-rays are high-energy electromagnetic rays, so that the generated radiation has great harm to human bodies, cells of the human bodies can be changed, and the injury to pregnant women and children is particularly serious; the hidden explosives in the backpack are inspected through senses such as eyes, ears, nose, hands and the like manually and by means of special tools such as various endoscopes, periscopes, telescopes, sight line searchers, night vision devices and the like, but the method needs a large amount of manpower, material resources and time and has low searching efficiency; the animal (search and explosion dog) smell sense is utilized to detect the explosive, for the animal, the animal is easy to swallow by mistake during training or poisoned by smelling volatile gas for a long time, a series of symptoms such as hepatitis, cataract, anemia and high cholesterol are easy to cause, and the death rate of the search and explosion animal is high. Therefore, a search and explosion device and a search and explosion method which have no influence on people and objects, high inspection accuracy and high inspection efficiency are needed for search and explosion inspection.
Disclosure of Invention
The invention aims to provide a battery self-discharge-based explosive searching device and method, and aims to solve the problems that in the prior art, explosive inspection affects people or animals, the inspection accuracy is low, and the inspection efficiency is low.
In order to achieve the above purpose, the invention provides the following two technical solutions:
the first scheme is as follows: a search and explosion device based on battery self-discharge comprises an electromagnetic detector, a signal conversion device and a display screen, wherein the signal conversion device comprises an I/V conversion circuit, a three-operational amplification circuit, a switch type phase-sensitive detection circuit, a second-order low-pass filter and an LM358AD double operational amplifier, and the electromagnetic detector, the signal conversion device and the display screen are electrically connected.
A search explosion method based on battery self-discharge comprises the following steps:
s1: detecting a magnetic field generated by tiny electrons released by a battery in an explosive by using an electromagnetic detector, and converting a magnetic signal into a weak current signal by using electromagnetic induction;
s2: inputting the weak current signal into an I/V conversion circuit to obtain a weak voltage signal;
s3: inputting the weak voltage signal into a three-operation amplifying circuit to obtain an amplified voltage signal;
s4: multiplying the amplified voltage signal by a sine high-frequency voltage to obtain a high-frequency carrier signal, converting the sine high-frequency voltage input voltage comparator into a square wave, inputting the square wave and the sine high-frequency voltage input voltage comparator into a switch type phase-sensitive detection circuit at the same time, and obtaining an output voltage through a second-order low-pass filter;
s5: the output voltage input is amplified by the LM358AD dual operational amplifier, and the shape of the explosive is displayed on the display screen.
Scheme II: a search and explosion device based on battery self-discharge comprises an electromagnetic detector, a signal conversion device and an LED display screen, wherein the signal conversion device comprises an I/V conversion circuit, a differential amplification circuit, an ADC 0809A/D converter and a 51 single chip microcomputer, and the electromagnetic detector, the signal conversion device and the LED display screen are electrically connected.
A search explosion method based on battery self-discharge comprises the following steps:
s1: detecting a magnetic field generated by tiny electrons released by a battery in an explosive by using an electromagnetic detector, and converting a magnetic signal into a weak current signal by using electromagnetic induction;
s2: inputting the weak current signal into an I/V conversion circuit to obtain a weak voltage signal;
s3: inputting the weak voltage signal into a differential amplification circuit to obtain an amplified voltage signal;
s4: inputting the amplified voltage signal into an ADC0809 for signal acquisition and A/D conversion;
s5: signals collected by the ADC0809 are read by the 51 single chip microcomputer, and meanwhile, the 51 single chip microcomputer calculates the signals to obtain a current value, and finally, the current value is statically displayed on an LED display screen.
The technical scheme provided by the invention has the following beneficial effects:
1. the electromagnetic detector is used for detecting a magnetic field generated by electrons released by a battery in an explosive, so that domesticated animals are not required to be searched and exploded, the damage to the animals is reduced, and the radiation damage to a human body is avoided in the searching and exploding inspection process;
2. after the electromagnetic induction is used for converting the magnetic signal into the electric signal, the signal conversion device converts the weak current signal into the output voltage and displays the output voltage by using the display, so that the accuracy of the explosion searching inspection is high;
3. the transmission process of the signals is transmitted in an electric mode, and the efficiency of explosion searching and checking is high.
Drawings
FIG. 1 is a schematic structural diagram of a search explosion device based on battery self-discharge according to the present invention;
fig. 2 is a flowchart of a battery self-discharge-based search and explosion method in embodiment 1;
fig. 3 is a flowchart of a battery self-discharge-based search and explosion method in embodiment 2;
the names of corresponding labels in the drawings are:
the device comprises an electromagnetic detector 1, a signal conversion device 2 and a display screen 3.
Detailed Description
The invention is described in further detail below with reference to the following figures and embodiments:
example 1:
as shown in fig. 1 and 2, the battery self-discharge-based search explosion device comprises an electromagnetic detector 1, a signal conversion device 2 and a display screen 3, wherein the signal conversion device 2 comprises an I/V conversion circuit, a triple-operational amplifier circuit, a switch-type phase-sensitive detection circuit, a second-order low-pass filter and an LM358AD dual-operational amplifier, and the electromagnetic detector 1, the signal conversion device 2 and the display screen 3 are electrically connected.
A search explosion method based on battery self-discharge comprises the following steps:
s1: the electromagnetic detector 1 is used for detecting a magnetic field generated by tiny electrons released by a battery in an explosive, and magnetic signals are converted into weak current signals by electromagnetic induction;
s2: inputting the weak current signal into an I/V conversion circuit to obtain a weak voltage signal;
s3: inputting the weak voltage signal into a three-operation amplifying circuit to obtain an amplified voltage signal;
s4: multiplying the amplified voltage signal by a sine high-frequency voltage to obtain a high-frequency carrier signal, converting the sine high-frequency voltage input voltage comparator into a square wave, inputting the square wave and the sine high-frequency voltage input voltage comparator into a switch type phase-sensitive detection circuit at the same time, and obtaining an output voltage through a second-order low-pass filter;
s5: the output voltage input is amplified by the LM358AD dual operational amplifier, and the shape of the explosive is displayed on the display screen 3.
Example 2:
as shown in fig. 1 and 3, the search explosion device based on battery self-discharge comprises an electromagnetic detector 1, a signal conversion device 2 and an LED display screen 3, wherein the signal conversion device 2 comprises an I/V conversion circuit, a differential amplification circuit, an ADC 0809A/D converter and a 51 single chip microcomputer, and the electromagnetic detector 1, the signal conversion device 2 and the LED display screen 3 are electrically connected.
A search explosion method based on battery self-discharge comprises the following steps:
s1: the electromagnetic detector 1 is used for detecting a magnetic field generated by tiny electrons released by a battery in an explosive, and magnetic signals are converted into weak current signals by electromagnetic induction;
s2: inputting the weak current signal into an I/V conversion circuit to obtain a weak voltage signal;
s3: inputting the weak voltage signal into a differential amplification circuit to obtain an amplified voltage signal;
s4: inputting the amplified voltage signal into an ADC0809 for signal acquisition and A/D conversion;
s5: the 51 single chip microcomputer is used for reading the signals collected by the ADC0809, meanwhile, the 51 single chip microcomputer is used for calculating the signals to obtain a current value, and finally, the current value is statically displayed on the LED display screen 3.
The above description is only an example of the present invention, and the common general knowledge of the technical solutions or characteristics known in the solutions is not described herein too much. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. The utility model provides a search for and explode device based on battery self-discharge which characterized in that: the electromagnetic detection instrument comprises an electromagnetic detection instrument (1), a signal conversion device (2) and a display screen (3), wherein the signal conversion device (2) comprises an I/V conversion circuit, an amplifying circuit and an operation converter, and the electromagnetic detection instrument (1), the signal conversion device (2) and the display screen (3) are electrically connected.
2. The search and explosion device based on battery self-discharge according to claim 1, characterized in that: the conversion device (2) further comprises a switch type phase-sensitive detection circuit and a second-order low-pass filter, the amplifying circuit is a three-operational amplifying circuit, and the operational amplifier is an LM358AD dual operational amplifier.
3. A search and explosion method based on battery self-discharge is characterized in that the search and explosion device based on battery self-discharge of claim 2 is used for search and explosion, and the method comprises the following steps:
s1: the electromagnetic detector (1) is used for detecting a magnetic field generated by tiny electrons released by a battery in an explosive, and magnetic signals are converted into weak current signals by electromagnetic induction;
s2: inputting the weak current signal into an I/V conversion circuit to obtain a weak voltage signal;
s3: inputting the weak voltage signal into a three-operation amplifying circuit to obtain an amplified voltage signal;
s4: multiplying the amplified voltage signal by a sine high-frequency voltage to obtain a high-frequency carrier signal, converting the sine high-frequency voltage input voltage comparator into a square wave, inputting the square wave and the sine high-frequency voltage input voltage comparator into a switch type phase-sensitive detection circuit at the same time, and obtaining an output voltage through a second-order low-pass filter;
s5: the output voltage input is amplified by the LM358AD dual operational amplifier, and the shape of the explosive is displayed on the display screen (3).
4. The search and explosion device based on battery self-discharge according to claim 1, characterized in that: the conversion device (2) further comprises a 51 single chip microcomputer, the amplifying circuit is a differential amplifying circuit, the operational converter is an ADC 0809A/D converter, and the display screen (3) is an LED display screen.
5. A search and explosion method based on battery self-discharge is characterized in that the search and explosion device based on battery self-discharge of claim 4 is used for search and explosion, and the method comprises the following steps:
s1: the electromagnetic detector (1) is used for detecting a magnetic field generated by tiny electrons released by a battery in an explosive, and magnetic signals are converted into weak current signals by electromagnetic induction;
s2: inputting the weak current signal into an I/V conversion circuit to obtain a weak voltage signal;
s3: inputting the weak voltage signal into a differential amplification circuit to obtain an amplified voltage signal;
s4: inputting the amplified voltage signal into an ADC0809 for signal acquisition and A/D conversion;
s5: signals collected by the ADC0809 are read by the 51 single chip microcomputer, and meanwhile, the 51 single chip microcomputer calculates the signals to obtain a current value, and finally, the current value is statically displayed on an LED display screen.
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| CN202110727627.7A CN113534264A (en) | 2021-06-29 | 2021-06-29 | Search explosion device and method based on battery self-discharge |
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| CN202110727627.7A CN113534264A (en) | 2021-06-29 | 2021-06-29 | Search explosion device and method based on battery self-discharge |
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2021
- 2021-06-29 CN CN202110727627.7A patent/CN113534264A/en active Pending
Patent Citations (6)
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| US20180242880A1 (en) * | 2016-12-05 | 2018-08-30 | Northwestern University | Apparatuses, Systems and Methods for Detection of an Ingested Battery or Magnet |
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