CN108931540A - Article detection apparatus - Google Patents

Article detection apparatus Download PDF

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Publication number
CN108931540A
CN108931540A CN201710389201.9A CN201710389201A CN108931540A CN 108931540 A CN108931540 A CN 108931540A CN 201710389201 A CN201710389201 A CN 201710389201A CN 108931540 A CN108931540 A CN 108931540A
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CN
China
Prior art keywords
article
signal
detected
reflection
characteristic
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CN201710389201.9A
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Chinese (zh)
Inventor
奥琛
底欣
张兆宇
田军
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Fujitsu Ltd
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Fujitsu Ltd
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Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to CN201710389201.9A priority Critical patent/CN108931540A/en
Priority to JP2018041750A priority patent/JP2018200297A/en
Publication of CN108931540A publication Critical patent/CN108931540A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/03—Investigating materials by wave or particle radiation by transmission

Abstract

The embodiment of the present invention provides a kind of article detection apparatus, wherein, the device is when that can not determine the article that article to be detected is included according to the numberical range of the first characteristic and the first characteristic of the first reflection signal and/or the first characteristic of the second reflection signal of the different article combinations of correspondence, by adjusting Transmit-Receive Unit, the positional relationship of reverberation and article to be detected, or enable the another set of Transmit-Receive Unit and reverberation different from current Transmit-Receive Unit position, the article that article to be detected is included is determined according to the signal that the signal of the transmitting after adjustment positional relationship is reflected after the article to be detected and reverberation.Above-mentioned apparatus through this embodiment, it can be improved the detection accuracy of article, and convenience can be promoted by this contactless detection mode, shorten detection time, testing cost is reduced simultaneously, and can determine in the combinations of different articles with the presence or absence of dangerous material.

Description

Article detection apparatus
Technical field
The present invention relates to field of communication technology more particularly to a kind of article detection apparatus.
Background technique
In recent years, the safety problem of public place is increasingly valued by people, how to such as control utensil, inflammable The dangerous material such as explosive material, which carry out detection, becomes important problem.Currently, for dangerous material detection device be widely used in airport, The intensive occasion of the personnel at all levels such as railway station, subway station, stadium, hazardous material detection device can be divided into two types：Contact With it is contactless.Contact-type detection needs suspicious object (such as bottle equipped with liquid) being placed on detection device enterprising Row detection, and contactless detection device can be moved in distance detection device a certain range i.e. starting detection simultaneously in suspicious item Differentiate whether suspicious item belongs to dangerous material.
It should be noted that the above description of the technical background be intended merely to it is convenient to technical solution of the present invention carry out it is clear, Complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Cannot merely because these schemes of the invention Background technology part is expounded and thinks that above-mentioned technical proposal is known to those skilled in the art.
Summary of the invention
Be directed to contactless detection device at present, common detection method first is that X-ray detection method, but this method Cost is usually higher, and long-time service will impact the health of staff.
The embodiment of the present invention proposes a kind of article detection apparatus, can be improved the detection accuracy of article, and passes through this The contactless detection mode of kind can promote convenience, shorten detection time, while reducing testing cost, and can determine not With in the combination of article whether there is dangerous material.
First aspect according to an embodiment of the present invention provides a kind of article detection apparatus, which includes：At first Unit is managed, the second processing unit and is placed in the Transmit-Receive Unit of object disposing platform, article to be detected, reverberation at adjustment unit；Its In, the article to be detected being placed on object disposing platform includes more than one articles；
The Transmit-Receive Unit is used to send the first transmitting to the article to be detected between the Transmit-Receive Unit and the reverberation Signal, and the first reception signal after the article to be detected and reverberation reflection is received, which is first The superposed signal of signal and the second reflection signal is reflected, which is the first transmitting signal through the article to be detected Signal after reflection, the second reflection signal are that the signal of the first transmitting signal after the article transmission to be detected is anti-by this Penetrate the signal obtained after the article transmission to be detected again after object reflection；
The first processing units be used for according to the numberical range of the first characteristic of correspondence different articles combination and this first The first characteristic of signal and/or the first characteristic of the second reflection signal are reflected, determines the article that the article to be detected is included；
The first processing units are according to the numberical range of the first characteristic of correspondence different articles combination and this is first anti- First characteristic of the first characteristic and/or the second reflection signal of penetrating signal can not determine the article that the article to be detected is included When, which adjusts the positional relationship of the Transmit-Receive Unit, reverberation and the article to be detected, the second processing unit according to The letter that second transmitting signal of the Transmit-Receive Unit transmitting after adjustment positional relationship is reflected after the article and reverberation to be detected Number determine article that the article to be detected is included.
The second aspect according to an embodiment of the present invention provides a kind of article detection apparatus, wherein the device includes： First processing units, the second processing unit, control unit and to be placed in the article to be detected of object disposing platform, multiple transmitting-receivings single Member and multiple reverberations of placement corresponding with each Transmit-Receive Unit；The article to be detected being placed on object disposing platform includes one Kind or more article, wherein multiple Transmit-Receive Unit position is different；
The control unit is opened or closed for controlling the Transmit-Receive Unit；
A Transmit-Receive Unit in the open state this be used for be located at Transmit-Receive Unit reverberation corresponding with its Between the article to be detected send first transmitting signal, and receive after the article to be detected and reverberation reflection first Signal is received, which is the superposed signal of the first reflection signal and the second reflection signal, the first reflection signal It is signal of the first transmitting signal after the article reflection to be detected, which is that the first transmitting signal warp should The signal that signal after article transmission to be detected obtains after the article transmission to be detected again after reverberation reflection；
The first processing units be used for according to the numberical range of the first characteristic of correspondence different articles combination and this first The first characteristic of signal and/or the first characteristic of the second reflection signal are reflected, determines the article that the article to be detected is included；
The first processing units are according to the numberical range of the first characteristic of correspondence different articles combination and this is first anti- First characteristic of the first characteristic and/or the second reflection signal of penetrating signal can not determine the article that the article to be detected is included When, which closes a Transmit-Receive Unit, and opens another Transmit-Receive Unit, another Transmit-Receive Unit and its Transmit-Receive Unit of the positional relationship of corresponding reverberation and the article to be detected and this, corresponding reverberation and this is to be checked The positional relationship for surveying article is different, which emits according to another Transmit-Receive Unit after adjustment positional relationship Second emits the signal that signal is reflected after the article to be detected and corresponding reverberation to determine that the article to be detected is wrapped The article contained.
The beneficial effect of the embodiment of the present invention is that above-mentioned apparatus through this embodiment emits to article to be detected and believes Number, by being arranged reverberation, superposed signal after the reflection after article and reverberation can be received, based on the superposed signal into Row Articles detecting, when that can not detect article according to the superposed signal, according to the Transmit-Receive Unit after adjustment positional relationship, reflection Object and article to be detected carry out Articles detecting again, non-connect thereby, it is possible to improve the detection accuracy of article, and by this The detection mode of touch can promote convenience, shorten detection time, while reducing testing cost, and can determine different articles Combination in whether there is dangerous material.
Referring to following description and accompanying drawings, only certain exemplary embodiments of this invention is disclosed in detail, specifies original of the invention Reason can be in a manner of adopted.It should be understood that embodiments of the present invention are not so limited in range.In appended power In the range of the spirit and terms that benefit requires, embodiments of the present invention include many changes, modifications and are equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Detailed description of the invention
Many aspects of the invention may be better understood referring to attached drawing below.Component in attached drawing is not proportional draws System, and be intended merely to that the principle of the present invention is shown.For the ease of showing and describing some parts of the invention, corresponded in attached drawing Part may be exaggerated or minimized.Elements and features described in one drawing or one embodiment of the invention can be with Elements and features shown in one or more other attached drawings or embodiment combine.In addition, in the accompanying drawings, similar mark It number indicates corresponding component in several attached drawings, and may be used to indicate corresponding component used in more than one embodiment.
In the accompanying drawings：
Fig. 1 is the schematic diagram of article detection apparatus in the present embodiment 1；
Fig. 2 is Transmit-Receive Unit in the present embodiment 1, article to be detected, reverberation position view；
Fig. 3 is that first processing units 102 constitute schematic diagram in the present embodiment 1；
Fig. 4 is that the hardware of article detection apparatus in the present embodiment 2 constitutes schematic diagram；
Fig. 5 is the schematic diagram of article detection apparatus in the present embodiment 3；
Fig. 6 is that the hardware of article detection apparatus in the present embodiment 4 constitutes schematic diagram；
Fig. 7 is article detection method flow chart in the present embodiment 5；
Fig. 8 is article detection method flow chart in the present embodiment 5；
Fig. 9 a-9c be respectively in the present embodiment 5 different articles to be detected in first distance, second distance, and adjustment position First characteristic measurements of the third distance postponed；
Figure 10 a-10c is the first numberical range in the present embodiment 5, second value range, the signal of third value range respectively Figure.
Specific embodiment
Referring to attached drawing, by following specification, the aforementioned and other feature of the embodiment of the present invention be will be apparent.This A little embodiments are only exemplary, and are not limitations of the present invention.In order to enable those skilled in the art to be easy geography Solution the principle of the present invention and embodiment, the embodiment of the present invention are illustrated for emitting microwave signal, it is to be understood that, this Inventive embodiments are not limited to transmitting microwave signal.
Description of specific embodiments of the present invention with reference to the accompanying drawings.
Embodiment 1
The present embodiment 1 provides a kind of article detection apparatus；Fig. 1 is that the article detection apparatus constitutes schematic diagram, such as Fig. 1 institute Show, device 100 includes：Transmit-Receive Unit 101, first processing units 102, reverberation 103, the second processing unit 104, adjustment unit 105；Wherein, article and Transmit-Receive Unit 101 to be detected, reverberation 103 are placed on object disposing platform together, also, the object to be detected Product include more than one articles.
Wherein, Transmit-Receive Unit 101 sends the first transmitting signal to article to be detected；And the first transmitting signal is received through being somebody's turn to do First after article and reverberation 103 to be detected reflects receives signal；Wherein, which is placed in the Transmit-Receive Unit Between 101 and the reverberation 103；
Wherein, which is the superposed signal of the first reflection signal and the second reflection signal, first reflection Signal is signal of the first transmitting signal after the article reflection to be detected, which is the first transmitting signal The letter that signal after the article transmission to be detected obtains after the article transmission to be detected again after reverberation reflection Number；
The numberical range and described first for the first characteristic that the first processing units 102 are combined according to the different articles of correspondence The first characteristic of signal and/or the first characteristic of the second reflection signal are reflected, determines that the article to be detected is included Article；
In first processing units 102 according to the numberical range and described first of the first characteristic of the different article combinations of correspondence First characteristic of the first characteristic and/or the second reflection signal that reflect signal can not determine that the article to be detected is included Article when, adjustment unit 105 adjusts the positional relationship of Transmit-Receive Unit 101, reverberation 103 and the article to be detected, at second Unit 104 is managed according to the second transmitting signal of the Transmit-Receive Unit transmitting after adjustment positional relationship through the article and reverberation to be detected The signal reflected afterwards determines article that the article to be detected is included.
Above-mentioned apparatus through this embodiment emits signal to article to be detected, by the way that reverberation is arranged, can receive warp The superposed signal after reflection after article and reverberation carries out Articles detecting based on the superposed signal, according to the superposed signal When can not detect article, object is carried out according to Transmit-Receive Unit, reverberation and the article to be detected after adjustment positional relationship again Product examine is surveyed, and can promote convenience thereby, it is possible to improve the detection accuracy of article, and by this contactless detection mode Property, shorten detection time, while reducing testing cost, and can determine in the combinations of different articles with the presence or absence of dangerous material.
In the present embodiment, Transmit-Receive Unit 101 has the function of emitting signal and receives signal, can be by microwave remote sensor reality It is existing.For example, Transmit-Receive Unit 101 is microwave remote sensor of the work in 24.05GHz~24.25GHz, emit to article to be detected Microwave signal, but the present embodiment, not in this, as limitation, which can also be its in addition to microwave remote sensor His sensor has used the microwave remote sensor in addition to Doppler radar technique, for example, the Transmit-Receive Unit 101 can also be work Make to be also possible to Terahertz equipment in the microwave equipment of Ka wave band 27GHz~40GHz or the Transmit-Receive Unit 101, herein no longer It enumerates.
Fig. 2 is the article to be detected of this in the present embodiment and Transmit-Receive Unit, reverberation position view, as shown in Fig. 2, should be to Detection article 200 is placed between the Transmit-Receive Unit 101 and the reverberation 103, the first transmitting letter of the Transmit-Receive Unit 101 transmitting Number C, which touches article 200 to be detected, can reflect one first reflection signal A, in addition, the first hair of the Transmit-Receive Unit 101 transmitting A signal E can be transmitted and touch reverberation 103 by article 200 to be detected by penetrating signal, and the signal E transmitted was by should A signal can be reflected after reverberation, the signal of the reflection again passes by that obtain second after the transmission of the article 200 to be detected anti- Signal B is penetrated, the superposition which receives after article 200 to be detected and reverberation 103 reflect receives signal, i.e., and the The superposed signal of one reflection signal A and the second reflection signal B.
In the present embodiment, which can be using reflexive high, the low material of scattering.In this way, by When the signal that detection article 200 transmits touches the reverberation 103, the signal can be made adequately to be reflected, reduce energy Loss improves detection accuracy.Wherein, in order to realize the high reflectivity and low scattering, reverberation can be metal plate or Person is capable of the optical lens of optically focused, and the above is only illustrating, but the present embodiment is not in this, as limitation.In addition, the reflection The size of the reflecting surface of object can be less than article to be detected, in such manner, it is possible to avoid Transmit-Receive Unit 101 emit signal without to It detects the transmission of article and directly contacts measurement error introduced on reverberation, to improve detection accuracy.
In the present embodiment, the numberical range for the first characteristic that first processing units 102 are combined according to the different articles of correspondence And this first reflection signal the first characteristic and/or this second reflection signal the first characteristic, determine the article institute to be detected The article for including；Since the material of different articles is different, reflection characteristic can also be had differences, such difference, can be with For the identification of article, and since the reflection characteristic of certain articles is closer to, rely solely on reflection characteristic cannot be distinguished open object Product, in order to improve detection accuracy, can use through article to be detected reflect first reflection signal the first characteristic determine it is to be checked The article that article is included is surveyed, and/or article to be detected is determined according to the first characteristic of the second reflection signal of reverberation reflection The article for being included.
Wherein, which can be reflected signal strength, but the present embodiment is in this, as limitation, can be with It is other characteristics such as reflection signal phase variable quantity, it should be noted that the present embodiment is not to above-mentioned first characteristic of acquisition Method is limited, i.e., reflected signal strength can be calculated using the prior art, for example, if will use Doppler radar skill The microwave remote sensor of art contained as Transmit-Receive Unit 101, in the echo of Doppler radar the amplitude for receiving signal, phase, The bulk informations such as frequency displacement are handled by the echo to Doppler radar, can be obtained reflected signal strength, and the above is only show The explanation of example property, but the present embodiment is not in this, as limitation.
The first processing units 102 be will be described below how according to the first reception signal detection article to be detected.
Fig. 3 is that the first processing units 102 constitute schematic diagram, as shown in figure 3, the first processing units 102 include：
First processing module 301 is used for the numberical range according to the first characteristic of the different article combinations of correspondence and is somebody's turn to do First characteristic of the first reflection signal determines the article that article to be detected is included；
And/or
Second processing module 302 is used for the numberical range according to the first characteristic of the different article combinations of correspondence and is somebody's turn to do First characteristic of the second reflection signal determines the article that article to be detected is included.
According to the above description, the material due to different articles is different, reflection characteristic can also be had differences, this The difference of sample can be used for the identification (first processing module 301) of article, and since the reflection characteristic of certain articles more connects Closely, the first characteristic for relying solely on the first reflection signal, which cannot be distinguished, opens article, in order to improve detection accuracy, Second processing module 302 determine the article that article to be detected included according to the first characteristic of the second reflection signal in the reception signal, in this way by Different in the material of different articles, transmissison characteristic can also have differences, which have passed through article to be detected It transmits twice, therefore, the article that article to be detected is included can be determined according to the first Characteristics Detection of the second reflection signal.
Emit a signal as a result, it is folded after the reflection after article and reverberation can be received by the way that reverberation is arranged Plus signal carries out Articles detecting based on the superposed signal, can use the transmission and reflection characteristic of article to be detected, more accurately Carry out Articles detecting.
In the present embodiment, it includes corresponding with first distance that the numberical range of corresponding first characteristic is combined with different articles The first numberical range and second value range corresponding with second distance, wherein the article to be detected close to the transmitting-receiving list Member 101 one end and Transmit-Receive Unit 101 be spaced first distance (D1), between reverberation 103 and Transmit-Receive Unit 101 be spaced second away from From (D2).
Therefore, first processing module 301 is determined according to the first characteristic of the first numberical range and the first reflection signal The article that article to be detected is included；Second processing module 302 is according to the of second value range and the second reflection signal One characteristic determines the article that article to be detected is included.
Wherein, which can also include：Training unit (not shown, optional), can use in advance Transmit-Receive Unit 101 is tested for different article combinations under the first distance of article to be detected, obtains not jljl The training data of first characteristic of the first reflection signal of product combination, using the method for existing machine learning in advance to different First specifit training data of the first reflection signal of article combination are trained, and obtain the different articles combination pair for participating in test Answer the first numberical range and second value range (such as the first characteristic value of minimum for obtaining every kind of article combined test with most Value range between big first characteristic value combines the corresponding numberical range under the distance as the article, but the present embodiment is simultaneously Not in this, as limitation).When actually detected, in this case it is not apparent that article to be detected, but according to the first reflection signal actually obtained The first characteristic and first numberical range, it can determine the article for including in article to be detected.
In the present embodiment, the first numberical range of the article may exist multiple groups, respectively from different first distances pair It answers, for example, as shown in table 1, the first numberical range of N group S can be prestored1,S2,...,SN, wherein every group may each comprise not jljl Product combine (m kind) corresponding different numberical ranges [aN, bN], [cN, dN], [eN, fN] ..., [gN, hN], [kN, lN], respectively The first distance d of corresponding Transmit-Receive Unit and article1,d2,...,dN, in 301 actual measurement of first processing module, in the transmitting-receiving The distance of unit 101 and article to be detected 200 is first distance dN, by first numberical range SNIn [aN, bN], [cN, DN], [eN, fN] ..., [gN, hN], [kN, lN] and first reflection signal the first characteristic compare, determine this first reflection First characteristic of signal falls into SNIn which within the scope of, that is, can determine the article that article to be detected is included.
Table 1
In the present embodiment, Second processing module 302 can be according to second value range and the second reflection signal First characteristic determines the article that article to be detected is included.Wherein, the second value range and the article to be detected and transmitting-receiving are single The first distance and reverberation of member 101 and the second distance of Transmit-Receive Unit 101 are corresponding.
For example, as shown in table 2, it, can be pre- when the first numberical range of more than one articles combination (m ' kind) has overlapping Deposit N group second value range S1,S2,...,SN, wherein SNIt may include the corresponding different numberical ranges of different articles (m ' kind) [pN, qN], [rN, sN] ..., [xN, yN], the first distance for respectively corresponding Transmit-Receive Unit 101 and article to be detected 200 is d1, d2,...,dN, the second distance of Transmit-Receive Unit 101 and reverberation 103 is d1',d2',...,dN'.The training unit (not shown) Transmit-Receive Unit 101 can be used in advance, in the same second distance with reverberation 103, with article 200 to be detected same first It under distance, is tested for different article combinations, obtains the first characteristic of the second reflection signal of different article combinations Training data, using the method for existing machine learning in advance to the first characteristic of the second reflection signal of different article combinations Training data is trained, and each article for obtaining participating in test combines corresponding second value range, specific method of determination Similar with the first numberical range, Second processing module 302 is in actual measurement, in the Transmit-Receive Unit 101 and article to be detected 200 First distance be dN, the second distance of Transmit-Receive Unit 101 and reverberation 103 is dN' when, by second value range SNIn [pN, qN], [rN, sN] ..., [xN, yN] and second reflection signal the first characteristic compare, determine this second reflection signal The first characteristic fall into SNIn which within the scope of, that is, can determine the article that object to be detected is included.
Table 2
Article d1, d1' d2, d2' ... dN-1dN-1', dNdN',
Article combination 1 [p1, q1] [p2, q2] [pN-1, qN-1] [pN, qN]
Article combination 2 [r1, s1] [r2, s2] [rN-1, sN-1] [rN, sN]
… … … … …
Article combines m ' [x1, y1] [x2, y2] [xN-1, yN-1] [xN, yN]
In the present embodiment, as shown in figure 3, the first processing units 102 can also include：
Determining module 303 is used to receive signal for first and transmitting signal carries out Frequency mixing processing, to obtain corresponding base Band signal carries out Fast Fourier Transform (FFT) (Fast Fourier Transformation, FFT) processing to the baseband signal, with Obtain the first characteristic of the first reflection signal and the first characteristic of the second reflection signal.
In the present embodiment, the mode of specific Frequency mixing processing can refer to the prior art, wherein how general state in use When strangling radar sensor, the baseband signal obtained after mixing is two orthogonal I, and Q signal, according to the orthogonal I, Q signal is carried out FFT processing can extract the first characteristic of the first reflection signal and the first characteristic of the second reflection signal respectively.For example, carrying out After FFT processing, frequency-region signal F (w) is obtained, it is corresponding in F (w) when the distance of article 200 to be detected and Transmit-Receive Unit 101 is d Frequency point w=η × d/c is first characteristic (for example, reflected signal strength), wherein the c expression light velocity, η=(f2-f1)/T, T, F2, f1 respectively indicate Transmit-Receive Unit transmitting continuous frequency modulation (Frequency-modulated Continuous Wave, FMCW) letter Number when, the frequency for emitting signal rises to f2 (f2 from f1 in a cycle T>f1).
In the present embodiment, letter is reflected for the ease of distinguishing the first reflection signal and second from the first reception signal Number, as shown in Fig. 2, the second distance D2 of the reverberation 103 and Transmit-Receive Unit 101 is article 200 and Transmit-Receive Unit 101 to be detected First distance D1 multiple, and first distance D1 can be related with the resolution ratio of the Transmit-Receive Unit 101, in addition, in this reality It applies in example, when the article to be detected includes two or more articles, the two or more articles are different at a distance from the Transmit-Receive Unit, But the present embodiment is not in this, as limitation.
How the first processing units 102 in the present embodiment are determined in article 200 to be detected by taking 3 kinds of articles as an example below The article for being included is illustrated.
For example, making a reservation for 3 kinds of different articles, such as article 1, article 2, article 3, different article combinations includes following 7 When kind：1) article 1；2) article 2；3) article 3；4) article 1+2；5) article 1+3；6) article 1+2+3；7) article 2+3, according to table 1 it is found that every kind of article being previously obtained is combined in first distance dN, reverberation 103 is in second distance dN' when the first numerical value model Enclose [aN, bN], [cN, dN], [eN, fN] ... [gN, hN], wherein combination 1) 4) 5) 6) in all comprising article 1 (article 1 and receive The distance of bill member 101 is first distance), and the reflectivity of article 1 is stronger, therefore, article combination 1) 4) 5) 6) (article combination 1) 4) the first numberical range 5) 6) has coincidence) the first numberical range it is bigger, 2) 3) and be significantly greater than the combination of other articles 7) (article combination 2) 3) 7) the first numberical range have coincidence), article 200 to be detected is placed on Transmit-Receive Unit 101 and reflection Between object 103, which sends transmitting signal and receives folded after article 200 to be detected and reverberation 103 reflect Plus signal, the first characteristic that determining module 303 obtains the first reflection signal is X, and the article to be detected can be determined according to the X It whether include article 1 in 200.
According to table 2, every kind of article being previously obtained is combined in second distance dN, reverberation is in second distance dN' when Second value range [pN, qN], [rN, sN] ... [xN, yN], wherein combination 2) 4) 6) 7) in all include article 2, and article 2 Transmittance it is weaker, therefore, article combination 2) 4) 6) 7) (article combination 2) 4) 6) 7) and second value range have coincidence) the Two numberical ranges are smaller, and are significantly less than other articles combination 1) 5) 7) (article combination 1) 5) 7) second value range have It is overlapped), article 200 to be detected is placed between Transmit-Receive Unit 101 and reverberation 103, which sends transmitting letter Number and receive the superposed signal after article 200 to be detected and reverberation 103 reflect, determining module 303 obtains second reflection Whether the first characteristic of signal is Y, can be determined according to the Y in the article 200 to be detected comprising article 2.
Above-mentioned apparatus through this embodiment emits signal to article to be detected, by the way that reverberation is arranged, can receive warp The superposed signal after reflection after article and reverberation carries out Articles detecting based on the superposed signal, and thereby, it is possible to improve article Detection accuracy, and convenience can be promoted by this contactless detection mode, shorten detection time, reduce simultaneously Testing cost, and can determine in the combinations of different articles with the presence or absence of dangerous material.
In the present embodiment, in first processing units 102 according to the numerical value model of the first characteristic of the different article combinations of correspondence Enclose and this first reflection signal the first characteristic and/or this second reflection signal first characteristic can not determine the object to be detected When the article that product are included, adjustment unit 105 adjusts the position of Transmit-Receive Unit 101, reverberation 103 and the article 200 to be detected Relationship, the second processing unit 104 are to be checked through this according to the second transmitting signal that the Transmit-Receive Unit 101 after adjustment positional relationship emits The signal that is reflected after article 200 and reverberation 103 is surveyed to determine article that the article 200 to be detected is included.
In the present embodiment, as shown in Fig. 2, object disposing platform 201 includes the first support portion 106 and the second support portion 107, In, Transmit-Receive Unit 101 and reverberation 103 are placed in the first support portion 106, and article to be detected is placed in second support portion 107,
Adjustment unit 105 includes driving unit (not shown), is used to drive the first support portion 106 and/or the second support Portion 107 makes the first support portion 106 and/or the second support portion 107 rotate predetermined angular, to adjust Transmit-Receive Unit 101, reverberation 103 and article to be detected positional relationship, wherein the driving unit can be realized by rotating electric machine, but the present embodiment is not In this, as limitation.
In the present embodiment, since the positional relationship of Transmit-Receive Unit 101 and article to be detected 200 changes, the transmitting The reception characteristics of signals that signal receives after article 200 to be detected changes.In this way, the second processing unit 104 can Emit signal through the article 200 and reverberation to be detected with emit according to the Transmit-Receive Unit 101 after adjustment positional relationship second The signal reflected after 103 determines article that article 200 to be detected is included.By the Transmit-Receive Unit after adjustment positional relationship 101 to second transmitting of the transmitting of article 200 signal to be detected, and receives after article 200 to be detected and reverberation 103 reflect Second receives signal；
Wherein, which is the superposed signal of third reflection signal and the 4th reflection signal, third reflection Signal is signal of the second transmitting signal after the article 200 to be detected reflects, and the 4th reflection signal is second transmitting Signal of the signal after the article 200 to be detected transmits is saturating through the article 200 to be detected again after the reverberation 103 reflection The signal obtained after penetrating；
The second processing unit 104 reflects the first characteristic of signal according to the third, determines that the article 200 to be detected is wrapped The article contained.
In one embodiment, determine according only to the first characteristic of third reflection signal should be to for the second processing unit 104 The article that detection article 200 is included.
Wherein, which determines the embodiment and first for the article that the article 200 to be detected is included The embodiment of processing unit 102 is similar, for example, after adjustment positional relationship, close Transmit-Receive Unit of the article 200 to be detected 101 one end and the Transmit-Receive Unit 101 are spaced third distance, be spaced between reverberation 103 and the Transmit-Receive Unit 101 second away from From according to the third value range and third reflection letter of the first characteristic under third distance of the different article combinations of correspondence Number the first characteristic determine the article that article 200 to be detected is included.
Wherein, training unit can predefine the third value range, and method of determination is similar with the first numberical range, Details are not described herein again.
It in one embodiment, can be in conjunction with the first characteristic of the first reflection signal and the first spy of third reflection signal Property determines the article that the article 200 to be detected is included.
For example, be greater than in the first characteristic of the first reflection signal and the difference of the first characteristic of third reflection signal etc. When first threshold, the article that the article 200 to be detected is included is determined.
In the present embodiment, when article 200 to be detected includes two or more articles, the two or more articles and transmitting-receiving are single The distance of member 101 is different, therefore, the object after adjusting positional relationship, in the article to be detected 200 of the Transmit-Receive Unit 101 Product change, if adjustment front and back is larger close to the reflection characteristic difference of the article of Transmit-Receive Unit 101 or transmissison characteristic is poor Not larger, the first characteristic of the first characteristic and third reflection signal that can use the first reflection signal is compared, When difference is more than or equal to first threshold, the article that article 200 to be detected is included is determined.
In the present embodiment, which can be 180 degree, but the present embodiment is in this, as limitation, such as also It can be other degrees such as 90 degree, or after adjustment unit 105 adjusts a positional relationship, can not also determine article to be detected 200 included article when, which can adjust Transmit-Receive Unit 101 again, reverberation 103 and article to be detected 200 positional relationship, until determining the article for including in article 200 to be detected.
For example, such as article 1, article 2, article 3, different article combinations includes following in predetermined 3 kinds of different articles At 7 kinds：1) article 1；2) article 2；3) article 3；4) article 1+2；5) article 1+3；6) article 1+2+3；7) article 2+3, this One processing unit 102 can determine whether article 200 to be detected includes article 1 and article 2, but can not determine article to be detected Whether 200 include article 3, and the reflection of article 3, transmissison characteristic differ greatly with article 1 and 2, for example, for 2) and 7), it should Whether first processing units 102 can only determine the article to be detected 200 comprising article 2, whether can not determine article to be detected 200 Comprising article 3, after adjusting position, the article close to the Transmit-Receive Unit 101 is changed, due to the reflection characteristic of article 3 Differ larger with the reflection characteristic of article 2, it can utilizing front and back, the first reflection signal and third reflect the first of signal twice Characteristic compares, if the first characteristic difference is more than or equal to first threshold, determines in article 200 to be detected comprising article 3.
In the present embodiment, the first threshold and second threshold can first pass through multiple groups test data in advance by training unit It determines, the present embodiment is not in this, as limitation.
In the present embodiment, the device 100 can also include information output unit (not shown) and warning note unit (not Diagram), wherein when first processing units 102 and the second processing unit 104 determine the article for including in article 200 to be detected, Information output unit output test result, when the article of the determination is dangerous material, warning note unit carries out warning note.
Above-mentioned apparatus through this embodiment emits signal to article to be detected, by the way that reverberation is arranged, can receive warp The superposed signal after reflection after article and reverberation carries out Articles detecting based on the superposed signal, according to the superposed signal When can not detect article, object is carried out according to Transmit-Receive Unit, reverberation and the article to be detected after adjustment positional relationship again Product examine is surveyed, and can promote convenience thereby, it is possible to improve the detection accuracy of article, and by this contactless detection mode Property, shorten detection time, while reducing testing cost, and can determine in the combinations of different articles with the presence or absence of dangerous material.
Embodiment 2
The present embodiment 2 additionally provides a kind of article detection apparatus, and Fig. 4 is the hardware of article detection apparatus of the embodiment of the present invention Schematic diagram is constituted, as shown in figure 4, device 400 may include：One interface (not shown), central processing unit (CPU) 420, Memory 410 and transceiver 440；Memory 410 is coupled to central processing unit 420.Wherein memory 410 can store various numbers According to；The program of Articles detecting is additionally stored, and executes the program under the control of central processing unit 420, and store various Preset value and scheduled condition etc..
In one embodiment, the function of article detection apparatus can be integrated into central processing unit 420.Wherein, Central processing unit 420 can be configured as：Control transceiver 440 is sent out to the article to be detected being placed between transceiver and reverberation The first transmitting signal is sent, and receives first reception letter of the first transmitting signal after article and the reverberation reflection to be detected Number；Wherein, which is the superposed signal of the first reflection signal and the second reflection signal, which is Signal of the first transmitting signal after the article reflection to be detected, which is that the transmitting signal is to be detected through this The signal that signal after article transmission obtains after the article transmission to be detected again after reverberation reflection, according to correspondence The first characteristic and/or the second reflection letter of the numberical range of first characteristic of different article combinations and the first reflection signal Number the first characteristic, determine the article that the article to be detected is included；In the first characteristic combined according to the different articles of correspondence Numberical range and this first reflection signal the first characteristic and/or this second reflection signal first characteristic can not determine this to When the article that detection article is included, the positional relationship of adjustment transceiver 440, reverberation and the article to be detected, according to adjustment Second of Transceiver Transmit after positional relationship emits the signal that signal is reflected after article to be detected and reverberation to determine The article that the article to be detected is included.
Wherein, central processing unit 420 can be additionally configured to：The first support portion and/or the second support portion are driven, makes first Support portion and/or the second support portion rotate predetermined angular, are closed with adjusting the position of transceiver 440, reverberation and article to be detected System.
Wherein, central processing unit 420 can be additionally configured to：In the position of adjustment transceiver, reverberation and article to be detected After setting relationship, which is emitted by the transceiver 440 after adjustment positional relationship, and receive through the article to be detected and Second after reverberation reflection receives signal, which is the superposition letter of third reflection signal and the 4th reflection signal Number, third reflection signal is signal of the second transmitting signal after the article reflection to be detected, and the 4th reflection signal is The second transmitting signal or the second signal of the transmitting signal after the article transmission to be detected after reverberation reflection again The signal obtained after the article transmission to be detected；The first characteristic that signal is reflected according to the third, determines the article to be detected The article for being included.
Wherein, central processing unit 420 can be additionally configured to：According to the numerical value of the first characteristic of the different article combinations of correspondence Range and the first characteristic of the first reflection signal determine the article that article to be detected is included；And/or according to corresponding different The numberical range of first characteristic of article combination and the first characteristic of the second reflection signal determine that article to be detected is included Article.
Wherein, central processing unit 420 can be additionally configured to：Wherein, in the first characteristic of the first reflection signal and this When the difference that third reflects the first characteristic of signal is more than or equal to first threshold, the article that the article to be detected is included is determined； Or the third value range of the first characteristic of the different article combinations of the correspondence is fallen into the first characteristic that the third reflects signal When, determine that the article to be detected includes article corresponding with the third value range.
Wherein, central processing unit 420 can be additionally configured to：By the first reception signal, second receives signal and the hair It penetrates signal and carries out Frequency mixing processing, to obtain corresponding baseband signal, Fast Fourier Transform (FFT) processing is carried out to the baseband signal, with The first reflection signal, the second reflection signal are obtained, third reflects the first characteristic of signal.
The specific embodiment of central processing unit 420 can be not repeated herein with reference implementation example 1.
In another embodiment, above-mentioned article detection apparatus can also be configured and is connect with central processing unit 420 Chip (not shown) on, pass through the control of central processing unit 420 to realize the function of article detection apparatus.
It is worth noting that, device 400 is also not necessary to include all components shown in Fig. 4；In addition, the device 400 can also include the component being not shown in Fig. 4, can refer to the prior art.
Above-mentioned apparatus through this embodiment emits signal to article to be detected, by the way that reverberation is arranged, can receive warp The superposed signal after reflection after article and reverberation carries out Articles detecting based on the superposed signal, according to the superposed signal When can not detect article, object is carried out according to Transmit-Receive Unit, reverberation and the article to be detected after adjustment positional relationship again Product examine is surveyed, and can promote convenience thereby, it is possible to improve the detection accuracy of article, and by this contactless detection mode Property, shorten detection time, while reducing testing cost, and can determine in the combinations of different articles with the presence or absence of dangerous material.
Embodiment 3
The present embodiment 3 provides a kind of article detection apparatus；With the device in embodiment 1 the difference is that, at first Manage unit according to the numberical range of the first characteristic of correspondence different articles combination and the first characteristic of the first reflection signal and/or When first characteristic of the second reflection signal can not determine the article that article to be detected is included, do not pass through setting adjustment unit tune The positional relationship of whole Transmit-Receive Unit, reverberation and article to be detected, but multiple groups Transmit-Receive Unit and reverberation are set, pass through unlatching Another Transmit-Receive Unit different from current Transmit-Receive Unit position adjusts the position of Transmit-Receive Unit, reverberation and article to be detected Relationship, the second transmitting signal that the second processing unit emits according to another Transmit-Receive Unit after adjustment positional relationship is through to be detected The signal reflected after article and corresponding reverberation determines article that article to be detected is included.
Fig. 5 is that the article detection apparatus constitutes schematic diagram, as shown in figure 5, device 500 includes：Multiple Transmit-Receive Units 501 (501a, 501b ..., 501n), first processing units 502, placement corresponding with each Transmit-Receive Unit multiple reverberations 503 (503a, 503b ..., 503n), the second processing unit 504, control unit 505；Wherein, article to be detected and multiple Transmit-Receive Units 501a, 501b ..., 501n, multiple reverberation 503a, 503b ..., 503n are placed on object disposing platform together, also, this is to be detected Article includes more than one articles, and the position of multiple Transmit-Receive Units 501 is different, wherein n is the integer greater than 1.
Wherein, for controlling Transmit-Receive Unit 501a, 501b's ..., 501n opens or closes control unit 505, in opening A Transmit-Receive Unit for opening state, as Transmit-Receive Unit 501a sends the first transmitting signal to article to be detected；And receive this first Emit first reception signal of the signal after article and reverberation the 503a reflection to be detected；
Wherein, which is the superposed signal of the first reflection signal and the second reflection signal, first reflection Signal is signal of the first transmitting signal after the article reflection to be detected, which is the first transmitting signal The letter that signal after the article transmission to be detected obtains after the article transmission to be detected again after reverberation reflection Number；
The numberical range and described first for the first characteristic that the first processing units 502 are combined according to the different articles of correspondence The first characteristic of signal and/or the first characteristic of the second reflection signal are reflected, determines that the article to be detected is included Article；
First processing units 502 are according to the numberical range of the first characteristic of correspondence different articles combination and this is first anti- First characteristic of the first characteristic and/or the second reflection signal of penetrating signal can not determine the object that the article to be detected is included When product, control unit 505 closes a Transmit-Receive Unit 501a, and opens another Transmit-Receive Unit, such as Transmit-Receive Unit 501b, separately The positional relationship of one Transmit-Receive Unit 501b, corresponding reverberation 503b and the article to be detected and a Transmit-Receive Unit 501a, corresponding reverberation 503a are different with the positional relationship of article to be detected, and the second processing unit 504 is according to adjustment position It is anti-to set second transmitting signal institute after article to be detected and corresponding reverberation that another Transmit-Receive Unit 501b after relationship emits The signal penetrated determines article that the article to be detected is included.
Above-mentioned apparatus through this embodiment emits signal to article to be detected, by the way that reverberation is arranged, can receive warp The superposed signal after reflection after article and reverberation carries out Articles detecting based on the superposed signal, according to the superposed signal When can not detect article, object is carried out according to Transmit-Receive Unit, reverberation and the article to be detected after adjustment positional relationship again Product examine is surveyed, and can promote convenience thereby, it is possible to improve the detection accuracy of article, and by this contactless detection mode Property, shorten detection time, while reducing testing cost, and can determine in the combinations of different articles with the presence or absence of dangerous material.
In the present embodiment, multiple Transmit-Receive Unit 501a, 501b ..., 501n and multiple reverberation 503a, 503b ..., The corresponding reverberation 503n of each Transmit-Receive Unit 501n and article to be detected in 503n are placed point-blank, multiple Transmit-Receive Unit 501a, 501b ..., 501n can be located at on circumference of the article to be detected apart from identical same Radius, It can be from article to be detected apart from different placement multiple Transmit-Receive Unit 501a, 501b ..., 501n, the present embodiment is not In this, as limitation.
In the present embodiment, the Transmit-Receive Unit 501, reverberation 503, first processing units 502, the second processing unit 504 Embodiment and embodiment 1 in Transmit-Receive Unit 101, reverberation 103, first processing units 102, the second processing unit 103 Identical, details are not described herein again.
In the present embodiment, which opens one of Transmit-Receive Unit 501a and sends the to article to be detected One transmitting signal, when first processing units 502 can not determine the article for including in article to be detected, which is closed A Transmit-Receive Unit 501a is closed, the Transmit-Receive Unit 501b for opening another position sends the second transmitting letter to article to be detected Number, wherein it is just opposite in the position of Transmit-Receive Unit 501a and Transmit-Receive Unit 501b, and it is located at same straight line with article to be detected When upper, in order to avoid interference can also be by the Transmit-Receive Unit after the control unit 505 closes a Transmit-Receive Unit 501a 501a reverberation 503a corresponding with Transmit-Receive Unit 501a is moved to other positions, for example, can rise, or decline, or into Row rotation predetermined angular, the present embodiment is not in this, as limitation.
In the present embodiment, the Transmit-Receive Unit (such as Transmit-Receive Unit 501b) for sending the second transmitting signal can be the control Unit 505 is randomly selected, is also possible to transmitting-receiving list of the control unit 505 selection with Transmit-Receive Unit 501a in 180 degree angle Member, the present embodiment are not limited with this, and still can not be determined according to the received second reception signal of Transmit-Receive Unit 501b But when the article for including in article to be detected, which can reselect one again and send third transmitting signal Transmit-Receive Unit 501c, and so on, until determining the article for including in article to be detected.
Above-mentioned apparatus through this embodiment emits signal to article to be detected, by the way that reverberation is arranged, can receive warp The superposed signal after reflection after article and reverberation carries out Articles detecting based on the superposed signal, according to the superposed signal When can not detect article, object is carried out according to Transmit-Receive Unit, reverberation and the article to be detected after adjustment positional relationship again Product examine is surveyed, and can promote convenience thereby, it is possible to improve the detection accuracy of article, and by this contactless detection mode Property, shorten detection time, while reducing testing cost, and can determine in the combinations of different articles with the presence or absence of dangerous material.
Embodiment 4
The present embodiment 4 additionally provides a kind of article detection apparatus, and Fig. 6 is the hardware of article detection apparatus of the embodiment of the present invention Schematic diagram is constituted, as shown in fig. 6, device 600 may include：One interface (not shown), central processing unit (CPU) 620, Memory 610 and multiple transceivers 640；Memory 610 is coupled to central processing unit 620.Wherein memory 610 can store various Data；The program of Articles detecting is additionally stored, and executes the program under the control of central processing unit 620, and is stored each The preset value of kind and scheduled condition etc..
In one embodiment, the function of article detection apparatus can be integrated into central processing unit 620.Wherein, Central processing unit 620 can be configured as：Transceiver 640 in the open state is controlled to being placed between transceiver and reverberation Article to be detected send the first transmitting signal, and receive the of the transmitting signal after article and reverberation to be detected reflection One receives signal；Wherein, which is the superposed signal of the first reflection signal and the second reflection signal, this is first anti- Penetrating signal is signal of the first transmitting signal after the article reflection to be detected, which is the first transmitting letter What the signal number after the article transmission to be detected obtained after the article transmission to be detected again after reverberation reflection Signal, according to the first characteristic of the numberical range of the first characteristic of correspondence different articles combination and the first reflection signal and/ Or the first characteristic of the second reflection signal, determine the article that the article to be detected is included；According to the different article groups of correspondence The first of the first characteristic and/or the second reflection signal of the numberical range for the first characteristic closed and the first reflection signal is special When property can not determine the article that the article to be detected is included, a transceiver 640 is closed, and open another transceiver 640, Another transceiver 640, the positional relationship of corresponding reverberation and article to be detected and a transceiver 640 and its Corresponding reverberation is different with the positional relationship of the article to be detected, is sent out according to another transceiver after adjustment positional relationship Second penetrated emits the signal that signal is reflected after article to be detected and corresponding reverberation to determine the article to be detected The article for being included.
Wherein, central processing unit 620 can be additionally configured to：In the position of adjustment transceiver, reverberation and article to be detected After setting relationship, another transceiver of unlatching is controlled to article to be detected transmitting the second transmitting signal, and control another receipts It sends out device receives after article and the reverberation reflection to be detected second and receives signal, which is third reflection letter Number and the 4th reflection signal superposed signal, third reflection signal is the second transmitting signal after article to be detected reflection Signal, the 4th reflection signal is that second signal of the transmitting signal after the article transmission to be detected is anti-by the reverberation The signal obtained after the article transmission to be detected again after penetrating；The first characteristic of signal is reflected according to the third, determining should be to The article that detection article is included.
Wherein, central processing unit 620 can be additionally configured to：According to the numerical value of the first characteristic of the different article combinations of correspondence Range and the first characteristic of the first reflection signal determine the article that article to be detected is included；And/or according to corresponding different The numberical range of first characteristic of article combination and the first characteristic of the second reflection signal determine that article to be detected is included Article.
Wherein, central processing unit 620 can be additionally configured to：It is anti-in the first characteristic of the first reflection signal and the third When penetrating the difference of the first characteristic of signal more than or equal to first threshold, the article that the article to be detected is included is determined；Or When first characteristic of third reflection signal falls into the third value range of the first characteristic of the different article combinations of the correspondence, determine The article to be detected includes article corresponding with the third value range.
Wherein, central processing unit 620 can be additionally configured to：By the first reception signal, second receives signal and the hair It penetrates signal and carries out Frequency mixing processing, to obtain corresponding baseband signal, Fast Fourier Transform (FFT) processing is carried out to the baseband signal, with The first reflection signal, the second reflection signal are obtained, third reflects the first characteristic of signal.
The specific embodiment of central processing unit 620 can be not repeated herein with reference implementation example 3.
In another embodiment, above-mentioned article detection apparatus can also be configured and is connect with central processing unit 620 Chip (not shown) on, pass through the control of central processing unit 620 to realize the function of article detection apparatus.
It is worth noting that, device 600 is also not necessary to include all components shown in Fig. 6；In addition, the device 600 can also include the component being not shown in Fig. 6, can refer to the prior art.
Above-mentioned apparatus through this embodiment emits signal to article to be detected, by the way that reverberation is arranged, can receive warp The superposed signal after reflection after article and reverberation carries out Articles detecting based on the superposed signal, according to the superposed signal When can not detect article, object is carried out according to Transmit-Receive Unit, reverberation and the article to be detected after adjustment positional relationship again Product examine is surveyed, and can promote convenience thereby, it is possible to improve the detection accuracy of article, and by this contactless detection mode Property, shorten detection time, while reducing testing cost, and can determine in the combinations of different articles with the presence or absence of dangerous material.
Embodiment 5
The embodiment of the present invention 5 provides a kind of article detection method, the principle and embodiment 1 solved the problems, such as due to this method It is similar with 3 device, therefore its specific implementation can be with the implementation of the device of reference implementation example 1 and 3, content something in common, no Repeat explanation.
Fig. 7 is the flow chart of an embodiment of the article detection method of the present embodiment, please refers to Fig. 7, this method packet It includes：
Step 701, the first transmitting signal is sent to the article to be detected being placed between the Transmit-Receive Unit and reverberation, and connect Receive first reception signal of the first transmitting signal after article and the reverberation reflection to be detected；
Step 702, according to the numberical range of the first characteristic of the different article combinations of correspondence and the first reflection signal The first characteristic and/or it is described second reflection signal the first characteristic, determine the article that the article to be detected is included；
Wherein, which is the superposed signal of the first reflection signal and the second reflection signal, first reflection Signal is signal of the first transmitting signal after the article reflection to be detected, which is the first transmitting signal The letter that signal after the article transmission to be detected obtains after the article transmission to be detected again after reverberation reflection Number.
In the present embodiment, the specific embodiment of step 701-702 can with Transmit-Receive Unit 101 in reference implementation example 1, One processing unit 102, content is incorporated herein, and overlaps will not be repeated.
Step 703, according to this first reflection signal the first characteristic and/or second reflection signal the first characteristic can not When determining the article that the article to be detected is included, the positional relationship of the Transmit-Receive Unit, reverberation and article to be detected is adjusted；
In one embodiment, as described in Example 1, can by be arranged driving unit, adjust current Transmit-Receive Unit, The position of reverberation and/or the position (such as rotation predetermined angular) of article to be detected, to adjust the positional relationship.
In one embodiment, as described in Example 3, current Transmit-Receive Unit can be closed by setting control unit, And another Transmit-Receive Unit different from current Transmit-Receive Unit position is opened, to adjust the positional relationship.
Its specific embodiment is as described in embodiment 1 and 3, and details are not described herein again.
Step 704, according to the second transmitting signal of the Transmit-Receive Unit transmitting after adjustment positional relationship through article to be detected and The signal reflected after corresponding reverberation determines article that article to be detected is included.
In the present embodiment, the specific embodiment of step 704 can with the second processing unit in reference implementation example 1 and 3, Its content is incorporated herein, and overlaps will not be repeated.
It is below reflected signal strength with first characteristic, and to be checked to better illustrate above-mentioned article detection method For the article of survey is the various combination of 4 kinds (water, metal, empty bottle and oil), the article detection method in the present embodiment 5 is carried out Be described in detail, Fig. 9 a-9c be respectively in the present embodiment different articles to be detected in first distance, second distance, and adjustment position First characteristic measurements of the third distance postponed；
Figure 10 a-10c respectively indicates the first numberical range, the second value range, third value range of different article combinations Schematic diagram；Wherein, be obtained ahead of time first distance at 80cm different articles combination the first numberical range (such as Figure 10 a institute Show) and second distance be 160cm place different articles combine second value range (as shown in fig. lob), be in third distance The third value range (as shown in figure l0c) of different articles combination at 80cm.
It in order to avoid repeating, is only illustrated so that 15 kinds of articles combine as an example below, 15 kinds of article combinations are such as the following table 3 institute Show, wherein metal and edible oil belong to dangerous material, and therefore, it includes dangerous material, article in article to be detected in 1-12 that article, which combines, It combines article to be detected in 13-15 and does not include dangerous material.
Table 3
Serial number Article combination Serial number Article combination Serial number Article combination
1 Metal 6 Oil+empty bottle 11 Water+oil+empty bottle
2 Oil 7 Oil+water 12 Metal+water+empty bottle+oil
3 Metal+water 8 Metal+water+empty bottle 13 Water+empty bottle
4 Metal+empty bottle 9 Metal+water+oil 14 Water
5 Metal+oil 10 Metal+oil+empty bottle 15 Empty bottle
For ease of description, the sequence of the Item Title in the above article combination is exactly putting sequentially for article, and title is leaned on Preceding expression is close with Transmit-Receive Unit distance.
Fig. 8 is the article detection method flow chart in the present embodiment, as shown in figure 8, this method includes：
Step 801, the first transmitting signal is sent to article to be detected；And the first transmitting signal is received through the object to be detected First after product and reverberation reflection receives signal；
Step 802, signal is received by first and the first transmitting signal carries out Frequency mixing processing, to obtain corresponding base band letter Number, Fast Fourier Transform (FFT) processing is carried out to baseband signal, to obtain the first characteristic of the first reflection signal；
Step 803, the first characteristic of the first reflection signal is compared with 15 the first numberical ranges；
As shown in figure 9, the first characteristic for wrapping the first reflection signal of metalliferous article combination is significantly greater than other objects First characteristic of product combination；
Step 804, it whether determines in article to be detected comprising metal；Comprising when, execute step 815, otherwise execute step Rapid 805；
In the present embodiment, it can be determined that whether first characteristic falls into corresponding first numberical range, so as to determine to Whether detect in article includes metal；
Step 805, Fast Fourier Transform (FFT) processing is carried out to baseband signal, it is special with obtain the second reflection signal first Property；
Step 806, the first characteristic of the second reflection signal is compared with second value range；
In the present embodiment, have determined as due to wrapping metalliferous article to be detected comprising dangerous material, there is no need into Row further detection illustrates only second of other 7 kinds of articles combination not comprising metal for convenience of description in attached drawing 10b Numberical range.
As shown in figure 9b, since the transmittance of empty bottle is stronger, contain only the second reflection letter of the article combination of empty bottle Number the first characteristic be significantly greater than other articles combination the first characteristic；
Step 807, it whether determines in article to be detected only comprising empty bottle；When only including, step 814 is executed, is otherwise held Row step 808；
Step 808, the first characteristic of the first reflection signal is compared with remaining 6 the first numberical ranges；
As shown in figure 9, the first characteristic that article combines 2 and 6 is significantly less than what other the four kinds articles comprising water combined First characteristic；
Step 809, it whether determines in article to be detected comprising oil；Comprising when, execute step 815, it is no to then follow the steps 810；
Step 810, the positional relationship of the Transmit-Receive Unit of adjustment transmitting signal, reverberation and article to be detected；
Since the first numberical range and second value range of remaining four kinds of articles combination have lap, root The article for including in article to be detected can not be determined according to first characteristic of the first reflection signal and the second reflection signal, need to adjust It haircuts the positional relationship of the Transmit-Receive Unit for penetrating signal, reverberation and article to be detected；Its specific adjustment mode can be with reference implementation Example 1 and 3, details are not described herein again.
Step 811, the Transmit-Receive Unit after adjusting positional relationship sends the second transmitting signal to article to be detected；And it receives and is somebody's turn to do Second reception signal of the second transmitting signal after article and the reverberation reflection to be detected；
Step 812, signal is received by second and the second transmitting signal carries out Frequency mixing processing, to obtain corresponding base band letter Number, Fast Fourier Transform (FFT) processing is carried out to baseband signal, to obtain the first characteristic of third reflection signal；The third is anti- The first characteristic for penetrating signal is compared with remaining 4 third value ranges；
In the present embodiment, in step 812, the first characteristic of signal can also be reflected according to third and the first reflection is believed Number difference be compared with predetermined threshold, specific embodiment is as described in Example 1, and details are not described herein again.
In the present embodiment, for convenience of description, the third value of remaining 4 kinds of articles combination is illustrated only in attached drawing 10c Range.
Step 813, it whether determines in article to be detected comprising oil；Comprising when, execute step 815, it is no to then follow the steps 814；
As shown in attached drawing 9c, adjust positional relationship after article combination in oil-containing and not oil-containing the first characteristic distinguish it is bright It is aobvious, it can whether to be determined in the article to be detected according to the first characteristic that the third reflects signal comprising oil.
Step 814, determine that article to be detected does not include dangerous material；
Step 815, it determines comprising dangerous material in article to be detected, and carries out warning note.
The above method through this embodiment emits signal to article to be detected, by the way that reverberation is arranged, can receive warp The superposed signal after reflection after article and reverberation carries out Articles detecting based on the superposed signal, according to the superposed signal When can not detect article, object is carried out according to Transmit-Receive Unit, reverberation and the article to be detected after adjustment positional relationship again Product examine is surveyed, and can promote convenience thereby, it is possible to improve the detection accuracy of article, and by this contactless detection mode Property, shorten detection time, while reducing testing cost, and can determine in the combinations of different articles with the presence or absence of dangerous material.
The embodiment of the present invention also provides a kind of computer-readable program, wherein when executing the program in article detection apparatus When, which execute computer in the article detection apparatus such as the article detection method in example 5 above.
The embodiment of the present invention also provides a kind of storage medium for being stored with computer-readable program, and wherein this is computer-readable Program makes computer execute the article detection method in example 5 above in article detection apparatus.
In conjunction with the embodiment of the present invention describe the method for Articles detecting in article detection apparatus can be embodied directly in hardware, Software module executed by processor or both combination.For example, Fig. 1, one or more of functional block diagram shown in 3,4-6 And/or one or more combinations of functional block diagram, it both can correspond to each software module of computer program process, it can also Corresponding to each hardware module.These software modules can correspond respectively to each step shown in fig. 5.These hardware modules Such as these software modules are solidified using field programmable gate array (FPGA) and are realized.
Software module can be located at RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, post Storage, hard disk, mobile disk, CD-ROM or any other form known in the art storage medium.One kind can be deposited Storage media is coupled to processor, to enable a processor to from the read information, and can be written to the storage medium Information；Or the storage medium can be the component part of processor.Pocessor and storage media can be located in ASIC.This is soft Part module can store in the memory of image forming apparatus, also can store in the storage card that can be inserted into image forming apparatus In.
For Fig. 1, one or more groups of one or more of functional block diagram of 3,4-6 descriptions and/or functional block diagram It closes, can be implemented as general processor, the digital signal processor (DSP), dedicated collection for executing function described herein At circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device Part, discrete hardware components or it is any appropriately combined.For Fig. 1, one or more of the functional block diagram of 3,4-6 descriptions And/or one or more combinations of functional block diagram, it is also implemented as calculating the combination of equipment, for example, DSP and microprocessor Combination, multi-microprocessor communicate the one or more microprocessors or any other this configuration combined with DSP.
Combining specific embodiment above, invention has been described, it will be appreciated by those skilled in the art that this A little descriptions are all exemplary, and are not limiting the scope of the invention.Those skilled in the art can be according to the present invention Spirit and principle various variants and modifications are made to the present invention, these variants and modifications are also within the scope of the invention.
About the embodiment for including above multiple embodiments, following note is also disclosed.
It is attached 1, a kind of article detection apparatus, wherein described device includes：
First processing units, the second processing unit, adjustment unit and the Transmit-Receive Unit, to be detected for being placed in object disposing platform Article, reverberation；Wherein, the article to be detected being placed on object disposing platform includes more than one articles；
The Transmit-Receive Unit is used for the article to be detected transmission the positioned at the Transmit-Receive Unit and the reverberation between One transmitting signal, and the first reception signal after the article to be detected and reverberation reflection is received, described first connects The collection of letters number is a superposed signal for the first reflection signal and the second reflection signal, and the first reflection signal is the first transmitting letter Signal number after the article to be detected reflection, the second reflection signal is the first transmitting signal through described to be detected The signal that signal after article transmission obtains after the article transmission to be detected again after reverberation reflection；
The first processing units are used for according to the numberical range of the first characteristic of correspondence different articles combination and described First characteristic of the first characteristic of the first reflection signal and/or the second reflection signal, determines that the article to be detected is wrapped The article contained；
In the first processing units according to the numberical range of the first characteristic of correspondence different articles combination and described the First characteristic of one reflection signal and/or the first characteristic of the second reflection signal can not determine that the article to be detected is wrapped When the article contained, the adjustment unit adjusts the positional relationship of the Transmit-Receive Unit, reverberation and the article to be detected, described The second processing unit according to the second transmitting signal of the Transmit-Receive Unit transmitting after adjustment positional relationship through the article to be detected and The signal reflected after reverberation determines article that the article to be detected is included.
It is attached 2, a kind of article detection apparatus, wherein described device includes：First processing units, the second processing unit, control It unit processed and is placed in the article to be detected of object disposing platform, multiple Transmit-Receive Units and corresponding with each Transmit-Receive Unit places Multiple reverberations；The article to be detected being placed on object disposing platform includes more than one articles, wherein the multiple Transmit-Receive Unit Position is different；
Described control unit is opened or closed for controlling the Transmit-Receive Unit；
A Transmit-Receive Unit in the open state is used for positioned at one Transmit-Receive Unit reverberation corresponding with its Between the article to be detected send the first transmitting signal, and receive after the article to be detected and reverberation reflection First receive signal, the first reception signal is the superposed signal of the first reflection signal and the second reflection signal, described the One reflection signal is signal of the first transmitting signal after the article reflection to be detected, and the second reflection signal is institute Signal of the first transmitting signal after the article transmission to be detected is stated after reverberation reflection again through described to be checked Survey the signal obtained after article transmission；
The first processing units are used for according to the numberical range of the first characteristic of correspondence different articles combination and described First characteristic of the first characteristic of the first reflection signal and/or the second reflection signal, determines that the article to be detected is wrapped The article contained；
In the first processing units according to the numberical range of the first characteristic of correspondence different articles combination and described the First characteristic of one reflection signal and/or the first characteristic of the second reflection signal can not determine that the article to be detected is wrapped When the article contained, described control unit closes one Transmit-Receive Unit, and opens another Transmit-Receive Unit, another described receipts It is bill member, the positional relationship of corresponding reverberation and the article to be detected and one Transmit-Receive Unit, corresponding Reverberation and the article to be detected positional relationship it is different, described the second processing unit is according to the institute after adjustment positional relationship State the letter that the second transmitting signal of another Transmit-Receive Unit transmitting is reflected after the article to be detected and corresponding reverberation Number determine article that the article to be detected is included.
Note 3, the device according to note 1, wherein the object disposing platform includes the first support portion and the second support Portion, wherein the Transmit-Receive Unit and reverberation are placed in first support portion, and the article to be detected is placed in second support Portion,
The adjustment unit includes driving unit, is used to drive first support portion and/or the second support portion, makes institute The first support portion and/or the second support portion rotation predetermined angular are stated, to adjust the Transmit-Receive Unit, reverberation and described to be detected The positional relationship of article.
Note 4, the device according to note 1 or 2, wherein institute is being adjusted by the adjustment unit or control unit After the positional relationship for stating Transmit-Receive Unit, reverberation and the article to be detected, by after adjustment positional relationship Transmit-Receive Unit or From another Transmit-Receive Unit that control unit control is opened to article transmitting the second transmitting signal to be detected, and connect It receives second after the article to be detected and reverberation reflection and receives signal, the second reception signal is third reflection signal With the superposed signal of the 4th reflection signal, the third reflection signal is that the second transmitting signal is anti-through the article to be detected Signal after penetrating, the 4th reflection signal are that signal of the second transmitting signal after the article transmission to be detected passes through The signal obtained after the article transmission to be detected again after the reverberation reflection；
And described the second processing unit reflects the first characteristic of signal according to the third, determines the article to be detected The article for being included.
Note 5, the device according to note 1 or 2, wherein the number of first characteristic corresponding from different article groups Value range includes and corresponding first numberical range of first distance and second value range corresponding with second distance,
Wherein, the article to be detected close to the Transmit-Receive Unit one end and the Transmit-Receive Unit interval first away from From being spaced second distance between the reverberation and the Transmit-Receive Unit.
Note 6, the device according to note 1 or 2, wherein the first processing units include：
First processing module is used for according to the numberical range of the first characteristic of correspondence different articles combination and described the First characteristic of one reflection signal determines the article that article to be detected is included；And/or
Second processing module is used for according to the numberical range of the first characteristic of correspondence different articles combination and described the First characteristic of two reflection signals determines the article that article to be detected is included.
Be attached 7, device according to the attached note 4, wherein described the second processing unit in the first reflection signal the The difference of one characteristic and the first characteristic of third reflection signal determines the article to be detected when being more than or equal to first threshold The article for being included；
Or the first characteristic of the different article combinations of the correspondence is fallen into the first characteristic that the third reflects signal When third value range, determine that the article to be detected includes article corresponding with the third value range.
Note 8, the device according to note 1 or 2, wherein the reverberation is using reflexive high, the low material of scattering Matter；The reverberation is metal plate or the optical lens for capableing of optically focused.
Note 9, the device according to note 1 or 2 or 4, wherein the first processing units are also used to described first Receive signal and it is described first transmitting signal carry out Frequency mixing processing, to obtain corresponding baseband signal, to the baseband signal into Row Fast Fourier Transform (FFT) processing, to obtain the first reflection signal and/or the second reflection signal；Alternatively,
Described the second processing unit is also used to carry out being mixed place with the second transmitting signal by the second reception signal Reason carries out Fast Fourier Transform (FFT) processing to the baseband signal to obtain corresponding baseband signal, anti-to obtain the third Penetrate the first characteristic of signal.
Note 10, the device according to note 1 or 2, wherein include two or more articles in the article to be detected When, described two above articles are different at a distance from the Transmit-Receive Unit.
It is attached 11, a kind of article detection method, wherein the method includes：
Transmit-Receive Unit sends the first transmitting signal to the article to be detected between the Transmit-Receive Unit and reverberation, and It receives first after the article to be detected and reverberation reflection and receives signal, the first reception signal is first anti- The superposed signal of signal and the second reflection signal is penetrated, the first reflection signal is the first transmitting signal through described to be detected Signal after article reflection, the second reflection signal are letter of the first transmitting signal after the article transmission to be detected The signal that is obtained after the article transmission to be detected again number after reverberation reflection；
It is special according to the first of the numberical range of the first characteristic of the different article combinations of correspondence and the first reflection signal Property and/or it is described second reflection signal the first characteristic, determine the article that the article to be detected is included；
The first of signal is reflected in the numberical range of the first characteristic combined according to the different articles of correspondence and described first When characteristic and/or the first characteristic of the second reflection signal can not determine the article that the article to be detected is included, adjustment Transmitting second emits the positional relationship of the Transmit-Receive Unit of signal, reverberation and the article to be detected, according to adjustment positional relationship The signal that second transmitting signal of Transmit-Receive Unit transmitting afterwards is reflected after the article to be detected and reverberation is to determine State the article that article to be detected is included.
Note 12, the method according to note 11, wherein by drive the Transmit-Receive Unit and reverberation and/or to Article rotating predetermined angular is detected, to adjust the positional relationship of the Transmit-Receive Unit, reverberation and the article to be detected；
Note 13, the method according to note 11, wherein by closing the Transmit-Receive Unit, open and the transmitting-receiving Another different Transmit-Receive Unit of cell position, with adjust the second transmitting of transmitting Transmit-Receive Unit of signal, reverberation and it is described to Detect the positional relationship of article.
Note 14, the method according to note 11, wherein adjusting the Transmit-Receive Unit, reverberation and described to be checked After surveying the positional relationship of article, from after adjustment positional relationship Transmit-Receive Unit or another Transmit-Receive Unit to the object to be detected Product transmitting the second transmitting signal, and the second reception signal after the article to be detected and reverberation reflection is received, The second reception signal is the superposed signal of third reflection signal and the 4th reflection signal, and the third reflection signal is described Signal of the second transmitting signal after the article reflection to be detected, the 4th reflection signal are the second transmitting signal warps Signal after the article transmission to be detected obtains after the article transmission to be detected again after reverberation reflection Signal；
The first characteristic that signal is reflected according to the third, determines the article that the article to be detected is included.
Note 15, the method according to note 11, wherein the numerical value of first characteristic corresponding from different article groups Range includes and corresponding first numberical range of first distance and second value range corresponding with second distance,
Wherein, the article to be detected close to the Transmit-Receive Unit one end and the Transmit-Receive Unit interval first away from From being spaced second distance between the reverberation and the Transmit-Receive Unit.
Note 16, the method according to note 11, wherein according to the numerical value of the first characteristic of the different article combinations of correspondence First characteristic of the first characteristic and/or the second reflection signal of range and the first reflection signal, determine it is described to Detecting the article that article is included includes：
It is special according to the first of the numberical range of the first characteristic of the different article combinations of correspondence and the first reflection signal Property determines the article that article to be detected is included；And/or
It is special according to the first of the numberical range of the first characteristic of the different article combinations of correspondence and the second reflection signal Property determines the article that article to be detected is included.
Note 17, the method according to note 14, wherein according to the of the Transmit-Receive Unit transmitting after adjustment positional relationship Two emit the signal that signals are reflected after the article to be detected and reverberation is included to determine the article to be detected Article includes：Be greater than in the difference of the first characteristic of the first characteristic and third reflection signal of the first reflection signal etc. The article that the article to be detected is included is determined when first threshold；
Or the first characteristic of the different article combinations of the correspondence is fallen into the first characteristic that the third reflects signal When third value range, determine that the article to be detected includes article corresponding with the third value range.
Note 18, the method according to note 11, wherein the reverberation is using reflexive high, the low material of scattering Matter；The reverberation is metal plate or the optical lens for capableing of optically focused.
Note 19, the method according to note 11, wherein the method also includes：
Signal is received by described first and the first transmitting signal carries out Frequency mixing processing, to obtain corresponding base band letter Number, Fast Fourier Transform (FFT) processing is carried out to the baseband signal, to obtain the first reflection signal and/or the second reflection letter Number；Alternatively,
Signal is received by described second and the second transmitting signal carries out Frequency mixing processing, to obtain corresponding base band letter Number, Fast Fourier Transform (FFT) processing is carried out to the baseband signal, to obtain the first characteristic of the third reflection signal.
Note 20, the method according to note 11, wherein when the article to be detected includes two or more articles, Described two above articles are different at a distance from the Transmit-Receive Unit.

Claims (10)

1. a kind of article detection apparatus, wherein described device includes：First processing units, the second processing unit, adjustment unit with And it is placed in the Transmit-Receive Unit of object disposing platform, article to be detected, reverberation；Wherein, the object to be detected being placed on object disposing platform Product include more than one articles；
The Transmit-Receive Unit is used to send the first hair to the article to be detected between the Transmit-Receive Unit and the reverberation Signal is penetrated, and receives the first reception signal after the article to be detected and reverberation reflection, described first receives letter It number is the superposed signal of the first reflection signal and the second reflection signal, the first reflection signal is the first transmitting signal warp Signal after the article reflection to be detected, the second reflection signal are the first transmitting signals through the article to be detected The signal that signal after transmission obtains after the article transmission to be detected again after reverberation reflection；
The first processing units are used for the numberical range and described first of the first characteristic according to the different article combinations of correspondence The first characteristic of signal and/or the first characteristic of the second reflection signal are reflected, determines that the article to be detected is included Article；
In the first processing units according to the numberical range of the first characteristic of correspondence different articles combination and described first anti- First characteristic of the first characteristic and/or the second reflection signal of penetrating signal can not determine that the article to be detected is included When article, the adjustment unit adjusts the positional relationship of the Transmit-Receive Unit, reverberation and the article to be detected, and described second Processing unit is according to the second transmitting signal of the Transmit-Receive Unit transmitting after adjustment positional relationship through the article to be detected and reflection The signal reflected after object determines article that the article to be detected is included.
2. a kind of article detection apparatus, wherein described device includes：First processing units, the second processing unit, control unit with And it is placed in the article to be detected, multiple Transmit-Receive Units and multiple reflections of placement corresponding with each Transmit-Receive Unit of object disposing platform Object；The article to be detected being placed on object disposing platform includes more than one articles, wherein the multiple Transmit-Receive Unit position is not Together；
Described control unit is opened or closed for controlling the Transmit-Receive Unit；
A Transmit-Receive Unit in the open state is used between one Transmit-Receive Unit and its corresponding reverberation The article to be detected send the first transmitting signal, and receive after the article to be detected and reverberation reflection the One receives signal, and the first reception signal is the superposed signal of the first reflection signal and the second reflection signal, and described first is anti- Penetrating signal is signal of the first transmitting signal after the article to be detected reflection, and the second reflection signal is described the Signal of the one transmitting signal after the article transmission to be detected is after reverberation reflection again through the object to be detected The signal obtained after product transmission；
The first processing units are used for the numberical range and described first of the first characteristic according to the different article combinations of correspondence The first characteristic of signal and/or the first characteristic of the second reflection signal are reflected, determines that the article to be detected is included Article；
In the first processing units according to the numberical range of the first characteristic of correspondence different articles combination and described first anti- First characteristic of the first characteristic and/or the second reflection signal of penetrating signal can not determine that the article to be detected is included When article, described control unit closes one Transmit-Receive Unit, and opens another Transmit-Receive Unit, another described transmitting-receiving is single It is the positional relationship of first, corresponding reverberation and the article to be detected and one Transmit-Receive Unit, corresponding anti- Positional relationship difference of the object with the article to be detected is penetrated, described the second processing unit is according to described another after adjustment positional relationship The signal that second transmitting signal of one Transmit-Receive Unit transmitting is reflected after the article to be detected and corresponding reverberation comes Determine the article that the article to be detected is included.
3. the apparatus according to claim 1, wherein the object disposing platform includes the first support portion and the second support portion, In, the Transmit-Receive Unit and reverberation are placed in first support portion, and the article to be detected is placed in second support portion,
The adjustment unit includes driving unit, is used to drive first support portion and/or the second support portion, makes described One support portion and/or the second support portion rotate predetermined angular, to adjust the Transmit-Receive Unit, reverberation and the article to be detected Positional relationship.
4. device according to claim 1 or 2, wherein adjusting the receipts by the adjustment unit or control unit After the positional relationship of bill member, reverberation and the article to be detected, by the Transmit-Receive Unit after adjustment positional relationship or by controlling Another Transmit-Receive Unit that unit control processed is opened receives warp to article transmitting the second transmitting signal to be detected Second after the article to be detected and reverberation reflection receives signal, and the second reception signal is third reflection signal and the The superposed signal of four reflection signals, the third reflection signal are the second transmitting signals after the article reflection to be detected Signal, the 4th reflection signal is described in the signal of the second transmitting signal after the article transmission to be detected passes through The signal obtained after the article transmission to be detected again after reverberation reflection；
And described the second processing unit reflects the first characteristic of signal according to the third, determines that the article to be detected is wrapped The article contained.
5. device according to claim 1 or 2, wherein the numerical value model of first characteristic corresponding from different article groups It encloses including and corresponding first numberical range of first distance and second value range corresponding with second distance,
Wherein, one end of the close Transmit-Receive Unit of the article to be detected and Transmit-Receive Unit interval first distance, institute It states and is spaced second distance between reverberation and the Transmit-Receive Unit.
6. device according to claim 1 or 2, wherein the first processing units include：
First processing module, the numberical range for the first characteristic for being used to be combined according to the different articles of correspondence and described first is instead The first characteristic for penetrating signal determines the article that article to be detected is included；And/or
Second processing module, the numberical range for the first characteristic for being used to be combined according to the different articles of correspondence and described second is instead The first characteristic for penetrating signal determines the article that article to be detected is included.
7. device according to claim 4, wherein first spy of the described the second processing unit in the first reflection signal Property and the third reflection signal the first characteristic difference be more than or equal to first threshold when determine that the article to be detected is wrapped The article contained；
Or the third of the first characteristic of the different article combinations of the correspondence is fallen into the first characteristic that the third reflects signal When numberical range, determine that the article to be detected includes article corresponding with the third value range.
8. device according to claim 1 or 2, wherein the reverberation is using reflexive high, the low material of scattering； The reverberation is metal plate or the optical lens for capableing of optically focused.
9. device according to claim 1 or 2 or 4, wherein the first processing units are also used to receive described first Signal and the first transmitting signal carry out Frequency mixing processing, to obtain corresponding baseband signal, carry out to the baseband signal fast Fast Fourier transformation processing, to obtain the first reflection signal and/or the second reflection signal；Alternatively,
Described the second processing unit is also used to receive signal for described second and the second transmitting signal carries out Frequency mixing processing, with Corresponding baseband signal is obtained, Fast Fourier Transform (FFT) processing is carried out to the baseband signal, to obtain the third reflection letter Number the first characteristic.
10. device according to claim 1 or 2, wherein when the article to be detected includes two or more articles, institute It is different at a distance from the Transmit-Receive Unit to state two or more articles.
CN201710389201.9A 2017-05-27 2017-05-27 Article detection apparatus Pending CN108931540A (en)

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Application publication date: 20181204