CN105866846A - Hand-held iron weapon detector - Google Patents
Hand-held iron weapon detector Download PDFInfo
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- CN105866846A CN105866846A CN201610179502.4A CN201610179502A CN105866846A CN 105866846 A CN105866846 A CN 105866846A CN 201610179502 A CN201610179502 A CN 201610179502A CN 105866846 A CN105866846 A CN 105866846A
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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
- G01V3/10—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 using induction coils
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Abstract
The invention discloses a hand-held iron weapon detector, and the detector comprises a main body structure, a main unit, a transmitting coil, and a receiving coil, wherein the transmitting coil and the receiving coil are respectively connected with the main unit. The detector is characterized in that the main unit comprises a phase characteristic obtaining module, an alarm database, a judgment module, and an alarm module; the phase characteristic obtaining module is connected with the receiving coil, and is used for obtaining a phase characteristic value detected when a detected object passes through an induction region of the receiving coil; the alarm database stores an iron weapon phase characteristic table; the judgment module is used for looking up the iron weapon phase characteristic table in the alarm database, and judging the phase characteristic value of the detected object accords with a judging condition in the iron weapon phase characteristic table or not: sending a suspected signal if the phase characteristic value of the detected object accords with the judging condition in the iron weapon phase characteristic table; and the alarm module is used for receiving the suspected signal. The detector can shorten the inspection time, and improves the detection efficiency.
Description
Technical field
The present invention relates to metal detection field, in particular to the iron Weapon detecting device of a kind of hand-held.
Background technology
For reasons of security, metal detector is widely used in the places such as city underground, railway station, large-scale activity scene, it is therefore an objective to can detect whether carry the iron weapon forbidding carrying on the person, cutter the most made of iron, rifle.Current metal detector can only detect whether carry metal on the person, and cannot be distinguished by whether carrying on the person ferrous metal goods.Most rifle and cutter all contain iron composition, and these compositions are to be different from the person routine use article typically manufactured by other metals such as copper, aluminum.
It addition, detection device needs to facilitate testing staff to carry with, solve testing staff's not measurable problem during patrol, in sum, existing market urgent needs one hand-held iron Weapon detecting device, it is possible to compare and be accurately detected iron weapon, and reduce the probability of wrong report.
Summary of the invention
The task of the present invention is to overcome metal detector iron weapon cannot be carried out classification and Detection always, it is different from and generally uses the routine use articles for use that the metal material such as copper, aluminum manufactures, a kind of hand-held iron Weapon detecting device is provided, including agent structure, main frame and coupled transmitting coil and receiving coil, it is characterised in that: described main frame also includes phase property acquisition module, alarm database, judge module and alarm module；Phase property acquisition module connects receiving coil, the phase property value detected during for obtaining measured object by the induction region of receiving coil；Alarm database has iron weapon phase property table；Judge module, for searching the iron weapon phase property table of alarm database, it is judged that whether phase property value R of measured object meets the decision condition in iron weapon phase property table, if the decision condition met in iron weapon phase property table, sends doubtful signal；Alarm module, is used for receiving doubtful signal.
Preferably, described decision condition is: phase property value R of measured object and iron weapon in iron weapon phase property table demarcate the difference of thing phase property value T within the scope of presetting.
Preferably, described decision condition is: measured object phase property based on datum mark value R-Z is in the range of the phase property value that thing demarcates thing based on datum mark demarcated by iron weapon, and Z is the phase property value that datum mark demarcates thing.
Preferably, described iron weapon phase property table has datum mark and demarcates the phase property value of thing.
Preferably, described datum mark demarcates thing is metal.
Preferably, thing phase property value scope based on datum mark demarcation thing demarcated by described iron weapon is to pre-enter in iron weapon phase property table.
Preferably, described iron weapon is demarcated thing phase property value scope based on datum mark demarcation thing and is no more than 360 °.
Preferably, described alarm module is additionally operable to after receiving doubtful signal, reminds staff to check manually.
Preferably, described iron Weapon detecting device also includes the phase shifter, for adjusting the phase place of receiving coil output signal.
The iron Weapon detecting device of the hand-held of present invention offer is provided, solve and iron weapon can be carried out classification detection, whether with doubtful iron weapon article with detection tested personnel, it is different from and generally uses the routine use articles for use that the metal material such as copper, aluminum manufactures, shorten the review time, carry with, improve detection efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of hand-held of the present invention iron Weapon detecting device；
Fig. 2 is the first embodiment block diagram of hand-held of the present invention iron Weapon detecting device；
Fig. 3 is the second embodiment block diagram of hand-held of the present invention iron Weapon detecting device.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to the scope of embodiment statement.
Iron Weapon detecting device of the present invention refers to for detecting in measured object or whether keeping the device of iron weapon object with tested person.
Iron weapon of the present invention can be cutter, robs etc. and to be fabricated by with iron metal.
With reference to Fig. 1, Fig. 2, Fig. 1 is the first embodiment block diagram of hand-held of the present invention iron Weapon detecting device.Fig. 2 is the first embodiment block diagram of hand-held of the present invention iron Weapon detecting device.Hand-held of the present invention iron Weapon detecting device includes agent structure 101, main frame 102 and coupled transmitting coil 103 and receiving coil 104, it is characterised in that: described main frame 102 also includes phase property acquisition module 201, alarm database 202, judge module and 203 alarm modules 204；Phase property acquisition module 201 connects receiving coil 104, the phase property value detected during for obtaining measured object by the induction region of receiving coil 104；Alarm database 202 has iron weapon phase property table；Judge module 203, for searching the iron weapon phase property table of alarm database 204, judge whether phase property value R of measured object meets the decision condition in iron weapon phase property table, if the decision condition met in iron weapon phase property table, send doubtful signal；Alarm module, is used for receiving doubtful signal.
According to Maxwell's Theory of Electromagnetic Field, launching pumping signal from transmitting coil 103, through aerial propagation, receiving coil 104 has faradic current and induction electromotive force.Particularly, when having iron weapon or metal can produce eddy current effect near transmitting coil 103 or receiving coil 104, thus faradic current and the induction electromotive force that receiving coil 104 produces is affected.Concrete, receiving coil 104 is connected with phase property acquisition module 201, the output waveform of phase property acquisition module 201 receiving coil 104 by analysis, extracts waveform phase, draws phase property value T.Due to the error of test, phase property value T is averaged through repetitive measurement and is obtained.
Preferably, described decision condition is: the difference of phase property value R of measured object and iron weapon phase property table acceptance of the bid earnest phase property value T is within the scope of presetting.Concrete, iron weapon phase property table has iron weapon and demarcates phase property value T of thing, phase property value R of measured object is contrasted one by one with T.Judging that phase property value R of measured object and each demarcate the difference of thing phase property value T within the scope of presetting, if meeting in default scope, then measured object being classified as doubtful article.The scope preset can be set at the needs of actually used process according to user, and the size of preset range determines tolerance degree during test measured object.
It is to be understood that, transmitting coil 103 pumping signal such as 5360Hz based on identical hardware detection and same frequency, phase property value T is relevant to the composition of measured object, therefore, phase property value T of thing demarcated by specific iron weapon is fixing, but for different receiving coils 104, due to the difference on its analog feature, by different receiving coils 104, phase property value T of thing demarcated by the iron weapon of mensuration is different.Iron weapon phase property table is to determine for this iron Weapon detecting device.Hereinafter it is discussed in greater detail and how to obtain the iron weapon phase property table corresponding for this iron Weapon detecting device.
The phase property value of iron weapon is affected by ferrous components in its iron weapon, and multiple iron weapons can exist a phase property value scope；Secondly, iron class articles for daily use cannot be distinguished with iron weapon；It addition, ferrum has cross section with stainless steel alloy metal, the scope of phase property value, therefore, by such scheme, can first screen the doubtful article of iron weapon, further check, improve the efficiency checked.
Preferably, described decision condition is: measured object phase property based on datum mark value R-Z is in the range of the phase property value that thing demarcates thing based on datum mark demarcated by iron weapon, and wherein Z is the phase property value that datum mark demarcates thing.This scheme obtains its phase property value formation Experiment Data Records in iron weapon phase property table by detecting most of iron weapon.Such as, measured object phase property based on red copper value is 30 °, and testing known iron weapon phase property value based on red copper demarcation thing is 10 ° to 80 °, then it is assumed that decision condition is met.By such scheme, can first screen doubtful article, further check, improve the efficiency checked.
Preferably, described iron weapon phase property table has datum mark and demarcates the phase property value of thing.It can be metal that described datum mark demarcates thing.Datum mark demarcates thing should have stable phase property value, and as 0 point, any object is demarcated thing relative to a certain datum mark and had fixing difference.In iron weapon phase property table, can there be iron weapon and demarcate the phase property value of thing based on multiple datum marks.Use metal to demarcate thing as datum mark and there is the most unified standard, be beneficial to promote.
Preferably, thing phase property value scope based on datum mark demarcation thing demarcated by described iron weapon is to pre-enter in iron weapon phase property table.Concrete, it is to be pre-entered in iron weapon phase property table that iron weapon phase property value based on red copper demarcation thing is 10 ° to 80 °, it is preferred that preserves in the form of a file, directly invokes in different iron Weapon detecting devices.
Preferably, described iron weapon is demarcated thing phase property value scope based on datum mark demarcation thing and is no more than 360 °.Using angle standard, phase property value scope is not more than 360 °.Using Circular measure standard, phase property value scope is not more than 2 π.
Further, after alarm module 204 is additionally operable to receive doubtful signal, staff is reminded to check manually.The mode reminded is various, shows exception symbol by display screen, is given a warning sound by speaker, passes through light flash.Manual type inspection can use X-ray machine or macroscopy mode.
Provide below and the phase property value of iron weapon and correspondence is write the scheme in iron weapon phase property table.
Iron weapon is demarcated the induction region of the thing receiving coil 104 by iron Weapon detecting device.Particularly, during thing demarcation demarcated by iron weapon, it is possible to use the mode of the automatizatioies such as mechanical hand replaces manual operation, by iron weapon demarcation thing by the induction region by the receiving coil 104 of formula detector, can play quickly, effect accurately.The induction region of receiving coil 104 refers to that measured object can affect the region of the induction electromotive force that receiving coil 104 produces, and in hand-held detector 300, iron weapon is demarcated thing near receiving coil 302 induction region.
According to the needs of practical situation, thing demarcated by iron weapon can be provided with M, and M is the natural number more than 1.
Phase property value T, iron weapon are demarcated the iron weapon phase property table in the numbering write alarm database 202 of thing.Such as, described iron weapon is demarcated thing and is provided with M, then, the iron weapon of m is demarcated thing phase property value and is expressed as Tm, and in iron weapon phase property table, record has phase property value T, iron weapon to demarcate the numbering of thing simultaneously.
In order to make each iron Weapon detecting device have unified iron weapon phase property table, can be provided with datum mark and demarcate thing phase property value, it can be metal that datum mark demarcates thing.Calculate T-Z, i.e. show that iron weapon is demarcated thing and demarcated phase property value t of thing based on datum mark；Iron weapon phase property table in described alarm database 202 has phase property value t, the numbering of iron weapon demarcation thing.And to maximum, the minima that iron weapon can be demarcated the phase property value that thing demarcates thing based on datum mark is set as that iron weapon is demarcated thing and demarcated the phase property value scope of thing based on datum mark.
Providing below the different iron Weapon detecting devices of correction makes it detect phase property value harmonized programme, can be divided into software mode and hardware mode.
In software mode, by the same demarcation thing detection region by the receiving coil 104 of two different iron Weapon detecting devices, obtain demarcation thing and correspond to phase property value Z and the Y of the first and second iron Weapon detecting devices, calculate second iron Weapon detecting device correction value Y-Z corresponding to the first iron Weapon detecting device.On the one hand, correction value receives the difference of phase property detection between link for revising two iron Weapon detecting devices, after i.e. by the test result of the second iron Weapon detecting device being carried out the correction of Y-Z as, the second iron Weapon detecting device can be regarded the device with the phase property detection performance identical with the first iron Weapon detecting device.On the other hand, for the phase property value that will be obtained when demarcating thing by the second iron Weapon detecting device, can be modified by correction value, draw and demarcate thing by the consistent data of the phase property value that obtained during the first iron Weapon detecting device, i.e. having unified the phase property value of corresponding difference iron Weapon detecting device.Unified phase property value is conducive to unification and the migration of iron weapon phase property table.
In hardware mode, refer to the second embodiment block diagram that Fig. 3, Fig. 3 are hand-held of the present invention iron Weapon detecting devices.Described iron Weapon detecting device also includes the phase shifter 205, for adjusting the phase place of receiving coil 104 output signal.Concrete, such as it is provided with the first iron Weapon detecting device and the second iron Weapon detecting device, adjusting the phase shifter 205 in the second iron Weapon detecting device, the phase property value making iron weapon detect the when of demarcating thing by demarcating thing by iron Weapon detecting device with iron weapon when of the first iron Weapon detecting device is identical.Phase shifter 205 connects receiving coil 104 and phase property acquisition module 201, and the output signal of the receiving coil 104 of the second iron Weapon detecting device is entered horizontal phasing control.By control phase shifter 205 phase shift size, detect simultaneously iron weapon demarcate thing by the second iron Weapon detecting device time phase property value, make the iron weapon of phase property value and this demarcate thing pass through the first iron Weapon detecting device when identical.Phase shifter 205 suspension control signal controls, and this signal can be sent by main frame, and tester can control the phase shifter 205 further work by adjusting phase shifting parameter on main frame.Additionally, about the mode adjusting phase shifter 205 phase shift size, manual mode can also be passed through, regulate the size of the potentiometer 205 of phase shifter thus control the phase shift size of phase shifter 205, until iron weapon demarcation thing is identical with the phase property value detected when demarcating thing by the second iron Weapon detecting device by the first iron Weapon detecting device.By above-mentioned phase shifter correcting mode, second iron Weapon detecting device can be regarded as the device with the phase property detection performance identical with the first iron Weapon detecting device, be conducive to compatibility and the uniformity of phase property table data, it is simple to the analog feature difference of the receiving coil migrating in different iron Weapon detecting devices or solving multiple iron Weapon detecting device causes the skimble-scamble problem of phase property value.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Skilled artisan would appreciate that, invention scope involved in the application, it is not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, also should contain in the case of without departing from described inventive concept, other technical scheme being carried out combination in any by above-mentioned technical characteristic or its equivalent feature and being formed simultaneously.Such as features described above and (but not limited to) disclosed herein have the technical characteristic of similar functions and replace mutually and the technical scheme that formed.
Claims (9)
1. a hand-held iron Weapon detecting device, including agent structure, main frame and coupled transmitting coil and receiving coil, it is characterised in that: described main frame also includes phase property acquisition module, alarm database, judge module and alarm module；Phase property acquisition module connects receiving coil, the phase property value detected during for obtaining measured object by the induction region of receiving coil；Alarm database has iron weapon phase property table；Judge module, for searching the iron weapon phase property table of alarm database, it is judged that whether phase property value R of measured object meets the decision condition in iron weapon phase property table, if the decision condition met in iron weapon phase property table, sends doubtful signal；Alarm module, is used for receiving doubtful signal.
Hand-held the most according to claim 1 iron Weapon detecting device, it is characterised in that: described decision condition is: phase property value R of measured object and iron weapon in iron weapon phase property table demarcate the difference of thing phase property value T within the scope of presetting.
Hand-held the most according to claim 1 iron Weapon detecting device, it is characterized in that: described decision condition is: measured object phase property based on datum mark value R-Z is in the range of the phase property value that thing demarcates thing based on datum mark demarcated by iron weapon, and Z is the phase property value that datum mark demarcates thing.
Hand-held the most according to claim 3 iron Weapon detecting device, it is characterised in that: described iron weapon phase property table has datum mark and demarcates the phase property value of thing.
Hand-held the most according to claim 4 iron Weapon detecting device, it is characterised in that: it is metal that described datum mark demarcates thing.
Hand-held the most according to claim 3 iron Weapon detecting device, it is characterised in that: thing phase property value scope based on datum mark demarcation thing demarcated by described iron weapon is to pre-enter in iron weapon phase property table.
Hand-held the most according to claim 6 iron Weapon detecting device, it is characterised in that: described iron weapon is demarcated thing phase property value scope based on datum mark demarcation thing and is no more than 360 °.
8. according to the hand-held iron Weapon detecting device of claim 1-7 any claim, it is characterised in that: described alarm module is additionally operable to after receiving doubtful signal, reminds staff to check manually.
Hand-held the most according to claim 8 iron Weapon detecting device, it is characterised in that: described iron Weapon detecting device also includes the phase shifter, for adjusting the phase place of receiving coil output signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610179502.4A CN105866846A (en) | 2016-03-25 | 2016-03-25 | Hand-held iron weapon detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610179502.4A CN105866846A (en) | 2016-03-25 | 2016-03-25 | Hand-held iron weapon detector |
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| CN105866846A true CN105866846A (en) | 2016-08-17 |
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| CN201610179502.4A Pending CN105866846A (en) | 2016-03-25 | 2016-03-25 | Hand-held iron weapon detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345038A (en) * | 2018-02-09 | 2018-07-31 | 李法利 | Waveform processing method based on metal detection |
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| CN108345038A (en) * | 2018-02-09 | 2018-07-31 | 李法利 | Waveform processing method based on metal detection |
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Application publication date: 20160817 |