CN209690537U - Millimeter wave detector gate - Google Patents
Millimeter wave detector gate Download PDFInfo
- Publication number
- CN209690537U CN209690537U CN201822243242.XU CN201822243242U CN209690537U CN 209690537 U CN209690537 U CN 209690537U CN 201822243242 U CN201822243242 U CN 201822243242U CN 209690537 U CN209690537 U CN 209690537U
- Authority
- CN
- China
- Prior art keywords
- millimeter
- millimeter wave
- wave signal
- imaging system
- wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
Provide a kind of millimeter wave detector gate, including door main body and top millimeter wave imaging system, the top millimeter wave imaging system includes the millimeter wave transceiving aerial array being arranged at the top of the door main body, and the millimeter wave transceiving aerial array includes at least one transmission antenna unit and multiple receiving antenna units；And mm-wave signal source, the mm-wave signal source are connect with the millimeter wave transceiving aerial array.The millimeter wave detector gate can be realized and be irradiated at the top of detected object by the millimeter wave imaging system at the top of the top of door main body increases, to enhance the detection of concealment contraband at the top of detected object.
Description
Technical field
Embodiment of the disclosure is related to a kind of rays safety detection apparatus more particularly to a kind of millimeter wave safety check for human body safety check
Door.
Background technique
Existing millimeter wave detector gate generallys use millimeter wave imaging system and carries out safety check, such as the cylinder of L3 and China's news Noah's ark
The planar line of line scanning millimeter wave imaging system, Tongfang prestige view and Shanghai core shadow scans millimeter wave imaging system and Roger and applies
The plane planar array scanning millimeter wave imaging system of Watts company.However existing millimeter wave detector gate passes through plane or cylindrical surface
Scanning only can two surfaces positive and negative to human body be imaged, can not be to being imaged at the top of detected person, so that working as
Human body scarf, hair etc. can not detected when keeping contraband.
Utility model content
The purpose of the disclosure aims to solve the problem that at least one aspect of the above-mentioned problems in the prior art and defect.
In accordance with an embodiment of the present disclosure, a kind of millimeter wave detector gate is provided, comprising:
Door main body；And
Top millimeter wave imaging system, the top millimeter wave imaging system include:
Millimeter wave transceiving aerial array at the top of the door main body is set, and the millimeter wave transceiving aerial array includes extremely
A few transmission antenna unit and multiple receiving antenna units；With
Mm-wave signal source, the mm-wave signal source are connect with the millimeter wave transceiving aerial array.
In some embodiments, the top millimeter wave imaging system further include:
Beam splitter, the beam splitter are configured to for the millimeter-wave signal that the mm-wave signal source issues to be divided into first via milli
Metric wave signal and the second road millimeter-wave signal, the first via millimeter-wave signal pass through at least one described transmission antenna unit and shine
It is mapped at the top of the detected object being located in the door main body；And
Demodulator, the demodulator are configured to receive second road millimeter-wave signal from the beam splitter as ginseng
Examine signal and from the multiple receiving antenna unit it is received through detected object top reflective the second road millimeter wave letter
Number be used as measuring signal, then demodulated.
In some embodiments, the demodulator is demultiplexer, and the demultiplexer receives multiple described simultaneously
Receiving antenna unit received the second millimeter-wave signal through detected object top reflective as measuring signal, then carry out
Demodulation.
In some embodiments, the mm-wave signal source passes through at least one transmission antenna unit sending millimeter wave
Signal, the detected object top that the millimeter-wave signal is suitable for being irradiated in the door main body；The top millimeter
Wave imaging system further includes multichannel analog-digital converter, and the multichannel analog-digital converter receives multiple receiving antenna units simultaneously
The received millimeter-wave signal through detected object top reflective, then carry out analog-to-digital conversion to obtain the millimeter-wave signal
Strength information.
In some embodiments, the quantity of the transmission antenna unit is one, and the transmission antenna unit is located at the top
The center of the rectangle visual field of portion's millimeter wave imaging system.
In some embodiments, multiple receiving antenna units are arranged along the edge of the rectangle visual field.
In some embodiments, multiple receiving antenna units are in two-dimensional mesh grillages in the rectangle visual field
Cloth.
In some embodiments, multiple receiving antenna units are in random arrangement in the rectangle visual field.
In some embodiments, the quantity of the transmission antenna unit is multiple, and the top millimeter wave imaging system is also
Switching switch including being suitable for switching multiple transmission antenna units, so that emitting day described in only one at any one time
Line unit emits millimeter wave.
In some embodiments, multiple transmission antenna units are imaged along the rectangle of the top millimeter wave imaging system
Two of the visual field it is parallel edge arrangement, multiple receiving antenna units along the top millimeter wave imaging system rectangle at
As the another two parallel edge arrangements in the visual field.
According to millimeter wave detector gate described in the above-mentioned various embodiments of the disclosure, by the top of the setting of the top of door main body
Millimeter wave imaging system is disobeyed with increasing to the irradiation visual angle at the top of detected object to enhance concealment at the top of detected object
Comprehensive detection is realized in the detection of contraband goods.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram for showing a kind of millimeter wave detector gate of embodiment according to the disclosure；
Fig. 2 is the working principle for showing a kind of top millimeter wave imaging system of exemplary embodiment according to the disclosure
Figure；
Fig. 3 is the working principle for showing the top millimeter wave imaging system according to the another exemplary embodiment of the disclosure
Figure；
Fig. 4 is the working principle for showing the top millimeter wave imaging system of another exemplary embodiment according to the disclosure
Figure；And
Fig. 5 (a) to 5 (d) is the transmission antenna unit and reception for showing the top millimeter wave imaging system according to the disclosure
Several arrangements of antenna element.
Specific embodiment
Although being answered the disclosure is fully described referring to the attached drawing of the preferred embodiment containing the disclosure before being described herein
Disclosure described herein can be modified by understanding those skilled in the art, while obtain the technical effect of the disclosure.Cause
This, it should be understood that above description is an extensive announcement for those of ordinary skill in the art, and its content does not lie in limit
Exemplary embodiment described in the disclosure processed.
In addition, in the following detailed description, to elaborate many concrete details to provide to present disclosure convenient for explaining
The comprehensive understanding of embodiment.It should be apparent, however, that one or more embodiments without these specific details can also be with
It is carried out.In other cases, well known construction and device is diagrammatically embodied to simplify attached drawing.
According to the inventive concept generally of the disclosure, a kind of millimeter wave detector gate, including door main body and top are provided
Millimeter wave imaging system, the top millimeter wave imaging system include the millimeter wave transceiving antenna being arranged at the top of the door main body
Array, the millimeter wave transceiving aerial array include at least one transmission antenna unit and multiple receiving antenna units；And milli
Metric wave signal source, the mm-wave signal source are connect with millimeter wave transceiving aerial array.
Fig. 1 is the stereoscopic schematic diagram for showing a kind of millimeter wave detector gate of embodiment according to the disclosure.Fig. 2 is to show root
According to a kind of working principle diagram of the top millimeter wave imaging system of exemplary embodiment of the disclosure.
It as depicted in figs. 1 and 2, include door main body 1 according to a kind of millimeter wave detector gate of exemplary embodiment of the disclosure
With top millimeter wave imaging system 2, which includes the millimeter wave transceiving that 1 top of door main body is arranged in
Aerial array, the millimeter wave transceiving aerial array include a transmission antenna unit 23 and multiple receiving antenna units 24.In addition,
The top millimeter wave imaging system 2 further includes the mm-wave signal source 21 connecting with millimeter wave transceiving aerial array, the millimeter wave
Signal source 21 uses the broadband millimeter-wave signal source 21 of an extremely low power (being, for example, less than 1mw), and the mm-wave signal source 21 is logical
The transmission antenna unit 23 crossed on 1 top of door main body issues millimeter-wave signal, which can be irradiated to positioned at door
The top of detected object in main body 1, such as the head of human body, the millimeter-wave signal through detected object top reflective are same
The receiving antenna unit 24 that sample is located on 1 top of door main body receives, to generate millimeter-wave image information.According to the example of the disclosure
Property embodiment millimeter wave detector gate by the top of door main body 1 increase at the top of millimeter wave imaging system 2, can be realized to quilt
It is irradiated at the top of test object, to enhance concealment contraband at the top of detected object, (such as human body scarf, hair etc. are kept
Contraband) detection, realize comprehensive detection.
As shown in Fig. 2, further including 22 He of beam splitter according to a kind of millimeter wave detector gate of exemplary embodiment of the disclosure
Demodulator 25, wherein beam splitter 22 is configured to for the millimeter wave that mm-wave signal source 21 issues to be divided into two-way millimeter-wave signal: the
Millimeter-wave signal and the second road millimeter-wave signal all the way, wherein first via millimeter-wave signal passes through transmitting day as transmitting signal
Line unit 23 forms broad beam millimeter-wave irradiation to the top for the detected object being located in door main body 1, the second road millimeter wave letter
Number demodulator 25 is input to as reference signal.Millimeter-wave signal through detected object top reflective is by multiple receiving antenna lists
Member 24 receives, to form measuring signal and be input to demodulator 25.Demodulator 25 is by received measuring signal and with reference to letter
The complex signal comprising target amplitude and phase information number is demodulated, real and imaginary parts are respectively I and Q, to realize to be detected
The imaging of target top position.In this embodiment, in order to realize the receptions of multiple receiving antenna units 24, the top millimeter wave
Imaging system further includes the switching switch 26 suitable for being switched fast multiple receiving antenna units 24.
As shown in figure 3, demodulator 25 is multi-path digital demodulator 25 ', the multichannel number in a kind of exemplary embodiment
Word demodulator 25 ' simultaneously receive multiple receiving antenna units 24 institute it is received through detected object top reflective back the second tunnel
Millimeter-wave signal is demodulated as measuring signal, in this way, measuring signal and reference signal are in the middle warp of multi-path digital demodulator 25 '
The i/q signal for obtaining multichannel after A/D is converted by digital signal processing method is crossed, that is, passes through coherent measurement and obtains through detected pair
As the amplitude and phase of the second road millimeter-wave signal of top reflective, to realize the high-resolution to target top position to be detected
Rate imaging.
In addition, the top millimeter wave imaging system can also use incoherent imaging method.As shown in Fig. 4, show in one kind
It further include multichannel analog-digital converter 27 in example property embodiment.The millimeter-wave signal that mm-wave signal source 21 issues is as transmitting letter
Number by transmission antenna unit 23 formed broad beam millimeter-wave irradiation arrive the top of detected object, multichannel analog-digital converter 27 together
When receive multiple receiving antenna units 24 the received millimeter-wave signal through detected object top reflective and carry out modulus turn
It changes, to obtain the strength information of millimeter-wave signal.In this embodiment, multiple receiving antenna units 24 can be booked entire reception
Plane, these receiving antenna units 24 receive the millimeter-wave signal for being detected target reflection simultaneously.
Fig. 5 shows the top transmission antenna unit 23 of millimeter wave imaging system 2 and several rows of receiving antenna unit 24
Cloth form, in the figure, "○" indicate transmission antenna unit 23, and " " indicates receiving antenna unit 24.
As shown in Fig. 5 (a), in a kind of exemplary embodiment, the quantity of transmission antenna unit 23 is one, the transmitting day
Line unit 23 is located at the center of the rectangle visual field of the top millimeter wave imaging system 3, and multiple receiving antenna units 24 are along this
It arranges at the edge of rectangle visual field.
As shown in Fig. 5 (b), in a kind of exemplary embodiment, the quantity of transmission antenna unit 23 is one, the transmitting day
Line unit 23 is located at the center of the rectangle visual field of the top millimeter wave imaging system 3, and multiple millimeter wave receiving antennas 24 exist
It arranges in the rectangle visual field in two-dimensional grid, that is to say, that multiple millimeter wave receiving antennas 24 are booked entire visual field.
As shown in Fig. 5 (c), in a kind of exemplary embodiment, the quantity of transmission antenna unit 23 is one, the transmitting day
Line unit 23 is located at the center of the rectangle visual field of the top millimeter wave imaging system 2, and multiple millimeter wave receiving antennas 24 exist
It is in random arrangement in the visual field.
As shown in Fig. 5 (d), in a kind of exemplary embodiment, the quantity of transmission antenna unit 23 is multiple, top milli
Metric wave imaging system 2 further includes the switching switch suitable for switching multiple transmission antenna units 23, so that at any one time only
One transmission antenna unit 23 emits millimeter wave.In this case, multiple transmission antenna units 23 are along top mm-wave imaging
The parallel edge arrangement of two of the rectangle visual field of system 2, multiple receiving antenna units 24 are along top mm-wave imaging system
Another two parallel edges arrangement of the rectangle visual field of system 2, so that transmitting and reception are respectively opposite.
According to millimeter wave detector gate described in the above-mentioned various embodiments of the disclosure, by the top of the setting of the top of door main body
Millimeter wave imaging system is disobeyed with increasing to the irradiation visual angle at the top of detected object to enhance concealment at the top of detected object
Comprehensive detection is realized in the detection of contraband goods.
It will be understood to those skilled in the art that embodiment described above is all exemplary, and this field
Technical staff can make improvements, the rushing in terms of not recurring structure or principle of structure described in various embodiments
It can be freely combined in the case where prominent.
After the preferred embodiment that the disclosure is described in detail, those skilled in the art can be apparent from, In
It does not depart from the protection scope of appended claims and spirit is lower can carry out various change and change, and the disclosure is also not only restricted to
The embodiment of examples cited embodiment in bright book.
Claims (10)
1. a kind of millimeter wave detector gate characterized by comprising
Door main body；And
Top millimeter wave imaging system, the top millimeter wave imaging system include:
Millimeter wave transceiving aerial array at the top of the door main body is set, and the millimeter wave transceiving aerial array includes at least one
A transmission antenna unit and multiple receiving antenna units；With
Mm-wave signal source, the mm-wave signal source are connect with the millimeter wave transceiving aerial array.
2. millimeter wave detector gate according to claim 1, wherein the top millimeter wave imaging system further include:
Beam splitter, the beam splitter are configured to the millimeter-wave signal that the mm-wave signal source issues being divided into first via millimeter wave
Signal and the second road millimeter-wave signal, the first via millimeter-wave signal are irradiated to by least one described transmission antenna unit
At the top of detected object in the door main body；And
Demodulator, the demodulator are configured to receive second road millimeter-wave signal from the beam splitter as with reference to letter
Number and from the multiple receiving antenna unit received the second road millimeter-wave signal through detected object top reflective make
For measuring signal, then demodulated.
3. millimeter wave detector gate according to claim 2, wherein the demodulator is demultiplexer, the multichannel solution
Adjust device simultaneously receive multiple receiving antenna units received the second millimeter-wave signal through detected object top reflective
As measuring signal, then demodulated.
4. millimeter wave detector gate according to claim 1, wherein the mm-wave signal source passes through at least one described hair
It penetrates antenna element and issues millimeter-wave signal, the millimeter-wave signal is suitable for being irradiated to detected pair in the door main body
As top；The top millimeter wave imaging system further includes multichannel analog-digital converter, and the multichannel analog-digital converter receives simultaneously
Multiple receiving antenna units the received millimeter-wave signal through detected object top reflective, then carry out analog-to-digital conversion
To obtain the strength information of the millimeter-wave signal.
5. millimeter wave detector gate described in any one of -4 according to claim 1, wherein the quantity of the transmission antenna unit is
One, the transmission antenna unit is located at the center of the rectangle visual field of the top millimeter wave imaging system.
6. millimeter wave detector gate according to claim 5, wherein multiple receiving antenna units are imaged along the rectangle
It arranges at the edge in the visual field.
7. millimeter wave detector gate according to claim 5, wherein multiple receiving antenna units are imaged in the rectangle
It arranges in the visual field in two-dimensional grid.
8. millimeter wave detector gate according to claim 5, wherein multiple receiving antenna units are imaged in the rectangle
It is in random arrangement in the visual field.
9. millimeter wave detector gate described in any one of -4 according to claim 1, wherein the quantity of the transmission antenna unit is
Multiple, the top millimeter wave imaging system further includes the switching switch suitable for switching multiple transmission antenna units, with
So that transmission antenna unit described in only one emits millimeter wave at any one time.
10. millimeter wave detector gate according to claim 9, wherein multiple transmission antenna units are along the top milli
The parallel edge arrangement of two of the rectangle visual field of metric wave imaging system, multiple receiving antenna units are along the top
The parallel edge arrangement of another two of the rectangle visual field of millimeter wave imaging system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822243242.XU CN209690537U (en) | 2018-12-28 | 2018-12-28 | Millimeter wave detector gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822243242.XU CN209690537U (en) | 2018-12-28 | 2018-12-28 | Millimeter wave detector gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209690537U true CN209690537U (en) | 2019-11-26 |
Family
ID=68597501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822243242.XU Active CN209690537U (en) | 2018-12-28 | 2018-12-28 | Millimeter wave detector gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209690537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490980A (en) * | 2018-12-28 | 2019-03-19 | 同方威视技术股份有限公司 | Millimeter wave detector gate |
-
2018
- 2018-12-28 CN CN201822243242.XU patent/CN209690537U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490980A (en) * | 2018-12-28 | 2019-03-19 | 同方威视技术股份有限公司 | Millimeter wave detector gate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109490980A (en) | Millimeter wave detector gate | |
| CN106093937B (en) | A kind of microwave and millimeter wave human body security check system and safety inspection method | |
| CN106019275B (en) | Millimeter wave imaging system and safe examination system | |
| AU2015227069B2 (en) | Ultra wide band detectors | |
| JP2011523029A (en) | Microwave / millimeter wave imaging | |
| CN110794399B (en) | Active millimeter wave three-dimensional imaging security inspection device | |
| CN109328309A (en) | Method and system for near-field microwave imaging | |
| CN209690537U (en) | Millimeter wave detector gate | |
| CN109471195A (en) | Millimeter wave terahertz imaging equipment and object identification classification method | |
| CN110308443A (en) | A kind of reality wave beam electric scanning fast imaging human body safety check method and safe examination system | |
| CN104483669A (en) | Microwave imaging technology-based dangerous article active detection method and device | |
| CN108490497B (en) | Security inspection system and method | |
| CN109782366A (en) | Multiple-input multiple-output aerial array arrangement, human body safety check device and method for active millimeter wave safety check imaging | |
| CN109167168A (en) | Mimo antenna array, MIMO array antenna and safe examination system | |
| CN106154345A (en) | Ellipsoid passive millimeter wave imaging system | |
| CN205826862U (en) | Millimeter wave imaging system and safe examination system | |
| CN104965233A (en) | Multi-frequency terahertz detection system | |
| CN206209131U (en) | Portable security inspection equipment based on mm-wave imaging | |
| CN206505177U (en) | 3-D imaging system based on rotation sweep | |
| CN209728193U (en) | Scene monitoring formula millimeter wave scanning imaging system | |
| CN204989511U (en) | Multifrequency terahertz is imaging system now | |
| CN105510910A (en) | Ultra wide band radar imaging type security inspection method | |
| CN106526581B (en) | Navigation angle-measuring method and its realization device based on quantum entanglement microwave | |
| CN103064082B (en) | Microwave imaging method based on direction dimension random power modulation | |
| CN206892356U (en) | A kind of Terahertz conveyer belt detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |