CN106932831A - Revolution door type radar imagery safety check instrument - Google Patents
Revolution door type radar imagery safety check instrument Download PDFInfo
- Publication number
- CN106932831A CN106932831A CN201710140729.2A CN201710140729A CN106932831A CN 106932831 A CN106932831 A CN 106932831A CN 201710140729 A CN201710140729 A CN 201710140729A CN 106932831 A CN106932831 A CN 106932831A
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- China
- Prior art keywords
- output end
- input
- branch road
- frequency mixer
- frequency
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/005—Prospecting or detecting by optical means operating with millimetre waves, e.g. measuring the black losey radiation
Abstract
The invention discloses a kind of revolution door type radar imagery safety check instrument, including radar imagery safe examination system, the radar imagery safe examination system includes that computer, network interface parsing module, FPGA control process module, first drive branch road, second to drive branch road, signal generator, transmitting antenna, reception antenna, signal processing apparatus, signal pickup assembly and A/D converter；First driving branch road and the second driving branch road are respectively equipped with first input end, the second input, the first output end and the second output end；Signal processing apparatus are provided with first input end, the second input, the first output end and the second output end；Signal pickup assembly is provided with first input end, the second input, the first output end and the second output end.The present invention is low using millimeter wave frequency band radiation and the characteristics of penetrating clothing, is both adapted to human body safety check, it is also possible to weapon of the detection concealment under clothing.
Description
Technical field
The present invention relates to a kind of safety check instrument, and in particular to a kind of revolution door type radar imagery safety check instrument.
Background technology
In recent years, with the factor such as use of terrorist violence, the continuous generation of social event and high-tech destructor,
International security situation is caused to tend to severe, in China, public security protection detection is used as targetedly preventing the various attacks of terrorism
Important means, gradually obtains the highest attention of government and various circles of society, nowadays, civil aviaton in all parts of the country, high ferro, the hair at full speed of subway
Exhibition, has significantly driven the demand of public security protection detection so that the sector enters a brand-new developing stage.Safety check technology
Development is inseparable with the international great attack of terrorism, it may be said that the attack of terrorism changes the life of people to a certain extent
It is living, also promote the development of safety check technology.
Safety check in public places at present point luggage and articles inspection and human body safety inspection two parts, luggage and articles detection with
Based on x-ray imaging, detection main body is parcel, luggage, overcoat, shoes that people carries etc., can effectively be differentiated using X-ray
Go out to conceal dangerous material therein, and human body safety check be mainly by security staff search the person or hand-held micro metal survey meter enters
The nearly body inspection of row realizes that this mode not only takes but also invade tested personnel's privacy, and " metallic door " non-connects as traditional
Touch human body safety check equipment, the more detailed information that cannot provide suspicious object because it can only judge the presence or absence of metal causes to miss
Report rate is very high, can not meet it is current the need for, market need more comprehensively, more humane, more rapidly effective human body safety check hand
Section, the in recent years technology of the equal Efforts To Develop novel human-body field of safety check of national governments and research and development of products.
At present, human body imaging technique is mainly radioscopy imaging and X-ray back scattering imaging, radioscopy imaging
It is not suitable for carrying out the public general inspection, X-ray back scattering imaging can be realized in the case where human body is not contacted, quick effective
Check and conceal in contraband and dangerous material under clothing, including metal/non-metal cutter, plastics, ceramics, liquid, blast
Thing, drugs etc., major defect are to produce X-ray radiation, and the X-ray radiation of doses can be absorbed during human body safety check.
The content of the invention
The technical problems to be solved by the invention are to overcome the deficiencies in the prior art, there is provided a kind of revolution door type radar imagery
Safety check instrument, it is a kind of safe examination system based on millimeter radar imagery, low using millimeter wave frequency band radiation and can penetrate clothing
The characteristics of, both it is adapted to human body safety check, it is also possible to weapon of the detection concealment under clothing.
The present invention solves the above problems by the following technical programs：
Revolution door type radar imagery safety check instrument, including radar imagery safe examination system, the radar imagery safe examination system include
Computer, network interface parsing module, FPGA control process module, first drive branch road, second to drive branch road, signal generator, hair
Penetrate antenna, reception antenna, signal processing apparatus, signal pickup assembly and A/D converter；First drives branch road and second to drive branch
Road is respectively equipped with first input end, the second input, the first output end and the second output end；Signal processing apparatus are provided with first
Input, the second input, the first output end and the second output end；Signal pickup assembly is provided with first input end, second defeated
Enter end, the first output end and the second output end；The computer is connected by network interface parsing module with FPGA control process modules,
First input end of the FPGA control process module simultaneously with the first driving branch road and the second driving branch road is connected, and first drives branch road
The second input with the second driving branch road be connected with signal generator simultaneously, and first drives the of branch road and the second driving branch road
One output end is connected with the first input end of signal processing apparatus simultaneously, and first drives second output end and transmitting antenna of branch road
Connection, transmitting antenna is connected with reception antenna, and second drives second output end and reception antenna of branch road while and signal transacting
The second input connection of device；First output end and the second output end of signal processing apparatus respectively with signal pickup assembly
First input end and the second input are connected, and the first output end of signal pickup assembly and the connection of the second output end turn with A/D
The input connection of parallel operation, the output end of A/D converter is connected with the input of FPGA control process modules.
Further, the first driving branch road includes the first Sweep Source, the first frequency mixer and first times that are sequentially connected
Frequency device, the first Sweep Source is simultaneously as the first first input end and the first output end for driving branch road, one of the first frequency mixer
Used as the first the second input for driving branch road, the output end of the first frequency multiplier drives the second of branch road as first to input
Output end.
Further, the second driving branch road includes the second Sweep Source, the second frequency mixer and second times that are sequentially connected
Frequency source, the second Sweep Source is simultaneously as the second first input end and the first output end for driving branch road, one of the second frequency mixer
Used as the second the second input for driving branch road, the output end of the second frequency multiplier drives the second defeated of branch road to input as second
Go out end.
Further, the signal processing apparatus include that three-mixer, the 4th frequency mixer, the 5th frequency mixer, the 6th mix
Frequency device and frequency tripler；Two inputs of the 4th frequency mixer as signal processing apparatus first input end respectively with
First drives branch road and second to drive the first output end connection of branch road, and the output end of the 4th frequency mixer is defeated with frequency tripler
Enter end connection, the output end of frequency tripler is connected with an input of the 5th frequency mixer and the 6th frequency mixer simultaneously, the 5th
Another input of frequency mixer and the 6th frequency mixer is connected with the output end of three-mixer simultaneously, two of three-mixer
Input drives second output end and reception antenna of branch road to connect with second respectively as the second input of signal processing apparatus
Connect, the output end of the 5th frequency mixer and the 6th frequency mixer is exported respectively as the first output end of signal processing apparatus and second
End.
Further, the signal pickup assembly includes the first wave filter, the second wave filter, the first single-ended transfer difference module
With the second single-ended transfer difference module；The input of first wave filter and the second wave filter is respectively as signal pickup assembly
First input end and the second input, the output end of the first wave filter are connected with the input of the first single-ended transfer difference module, the
The output end of two wave filters is connected with the input of the second single-ended transfer difference module, the first single-ended transfer difference module and second single-ended
The output end of slip sub-module as signal pickup assembly the first output end and the second output end.
The present invention compared with prior art, has the following advantages and advantages：1st, millimeter wave frequency band radiation is low, is adapted to
In human body safety check；2nd, can be detected under non-contact condition, the privacy of tested personnel can be protected；3rd, using Active Imaging, no
Target itself radiation is relied on, it is influenced by ambient temperature small；4th, millimeter wave can penetrate clothing, force of the detectable concealment under clothing
Device, can significantly increase the Prevention-Security ability of public place in city, effectively reduce the incidence of occurred events of public safety.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is modular construction schematic diagram of the invention.
Fig. 2 is the structural representation of the first driving branch road.
Fig. 3 is the structural representation of the second driving branch road.
Fig. 4 is the structural representation of signal processing apparatus.
Fig. 5 is the structural representation of signal pickup assembly.
Fig. 6 is concrete structure schematic diagram of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
It is limitation of the invention.
Embodiment
As shown in figure 1, the present embodiment provides a kind of revolution door type radar imagery safety check instrument, including radar imagery safety check system
System, radar imagery safe examination system includes that computer, network interface parsing module, FPGA control process module, first drive branch road, second
Drive branch road, signal generator, transmitting antenna, reception antenna, signal processing apparatus, signal pickup assembly and A/D converter；The
One driving branch road and the second driving branch road are respectively equipped with first input end, the second input, the first output end and the second output end；
Signal processing apparatus are provided with first input end, the second input, the first output end and the second output end；Signal pickup assembly sets
It is equipped with first input end, the second input, the first output end and the second output end；Computer passes through network interface parsing module and FPGA
Control process module is connected, and FPGA control process module drives branch road and second to drive the first input end of branch road with first simultaneously
Second input of connection, the first driving branch road and the second driving branch road is connected with signal generator simultaneously, and first drives branch road
The first output end with the second driving branch road be connected with the first input end of signal processing apparatus simultaneously, and the of the first driving branch road
Two output ends are connected with transmitting antenna, and transmitting antenna is connected with reception antenna, and second drives the second output end and the reception of branch road
Antenna is connected with the second input of signal processing apparatus simultaneously；First output end and the second output end of signal processing apparatus point
It is not connected with the first input end and the second input of signal pickup assembly, the first output end of signal pickup assembly and second defeated
Go out end connection be connected with the input of A/D converter, the output end of A/D converter and the input of FPGA control process modules
Connection.
As shown in Fig. 2 the first driving branch road includes the first Sweep Source, the first frequency mixer and the first frequency multiplication that are sequentially connected
Device；As shown in figure 3, the second driving branch road includes the second Sweep Source, the second frequency mixer and the second frequency multiplication source that are sequentially connected；As schemed
Shown in 4, signal processing apparatus include three-mixer, the 4th frequency mixer, the 5th frequency mixer, the 6th frequency mixer and frequency tripling
Device, the output end of the 4th frequency mixer is connected with the input of frequency tripler, and the output end of frequency tripler is simultaneously mixed with the 5th
One input connection of frequency device and the 6th frequency mixer, another input of the 5th frequency mixer and the 6th frequency mixer is simultaneously with the
The output end connection of three-mixer；As shown in figure 5, signal pickup assembly includes the first wave filter, the second wave filter, first single-ended
The input of slip sub-module and the second single-ended transfer difference module, the output end of the first wave filter and the first single-ended transfer difference module
Connection, the output end of the second wave filter is connected with the input of the second single-ended transfer difference module.
As shown in fig. 6, in driving branch road first, the first Sweep Source is simultaneously as the first first input end for driving branch road
An input with the first output end respectively with FPGA control process module and the 4th frequency mixer of signal processing apparatus is connected,
One input of the first frequency mixer is connected as the second input of the first driving branch road with signal generator, the first frequency multiplier
Output end as first driving branch road the second output end be connected with transmitting antenna.
In driving branch road second, the second Sweep Source is simultaneously as the second first input end for driving branch road and the first output
An input respectively with FPGA control process module and the 4th frequency mixer of signal processing apparatus is held to be connected, the second frequency mixer
An input be connected with signal generator as the second input of the second driving branch road, the output end of the second frequency multiplier work
For the second output end of the second driving branch road is connected with an input of the three-mixer of signal processing apparatus.
In signal processing apparatus, two inputs of the 4th frequency mixer divide as the first input end of signal processing apparatus
It is not connected with the first Sweep Source of the first driving branch road and the second Sweep Source of the second driving branch road, two of three-mixer are defeated
Enter end to be connected with second frequency multiplier and reception antenna of the second driving branch road respectively as the second input of signal processing apparatus,
The output end of the 5th frequency mixer and the 6th frequency mixer respectively as signal processing apparatus the first output end and the second output end and
First wave filter of signal pickup assembly and the second wave filter are connected.
In signal pickup assembly, the input of the first wave filter and the second wave filter is respectively as signal pickup assembly
5th frequency mixer and the 6th the frequency mixer connection of first input end and the second input and signal processing apparatus, the first single-ended slip
The output end of sub-module and the second single-ended transfer difference module as signal pickup assembly the first output end and the second output end and
A/D converter is connected.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (5)
1. revolution door type radar imagery safety check instrument, including radar imagery safe examination system, it is characterised in that the radar imagery safety check
System includes that computer, network interface parsing module, FPGA control process module, first drive branch road, second to drive branch road, signal hair
Raw device, transmitting antenna, reception antenna, signal processing apparatus, signal pickup assembly and A/D converter；First drives branch road and the
Two driving branch roads are respectively equipped with first input end, the second input, the first output end and the second output end；Signal processing device is installed
It is equipped with first input end, the second input, the first output end and the second output end；Signal pickup assembly is provided with the first input
End, the second input, the first output end and the second output end；
The computer is connected by network interface parsing module with FPGA control process modules, and FPGA control process module is simultaneously with the
One drives branch road and second to drive the first input end of branch road to connect, and first drives branch road and second to drive the second input of branch road
End is connected with signal generator simultaneously, and first drives branch road and second to drive the first output end of branch road while and signal processing device
The first input end connection put, the second output end of the first driving branch road is connected with transmitting antenna, transmitting antenna and reception antenna
Connection, second output end and reception antenna of the second driving branch road are connected with the second input of signal processing apparatus simultaneously；Letter
First output end and the second output end of number processing unit respectively with the first input end and the second input of signal pickup assembly
Connection, the first output end of signal pickup assembly and the connection of the second output end are connected with the input of A/D converter, and A/D turns
The output end of parallel operation is connected with the input of FPGA control process modules.
2. revolution door type radar imagery safety check instrument according to claim 1, it is characterised in that described first drives branch road bag
The first Sweep Source, the first frequency mixer and the first frequency multiplier being sequentially connected are included, the first Sweep Source drives branch road as first simultaneously
First input end and the first output end, an input of the first frequency mixer is used as the first the second input for driving branch road
End, the output end of the first frequency multiplier is used as the first the second output end for driving branch road.
3. revolution door type radar imagery safety check instrument according to claim 1, it is characterised in that described second drives branch road bag
The second Sweep Source, the second frequency mixer and the second frequency multiplication source being sequentially connected are included, the second Sweep Source drives branch road as second simultaneously
First input end and the first output end, an input of the second frequency mixer as the second the second input for driving branch road,
The output end of the second frequency multiplier is used as the second the second output end for driving branch road.
4. revolution door type radar imagery safety check instrument according to claim 1, it is characterised in that the signal processing apparatus bag
Include three-mixer, the 4th frequency mixer, the 5th frequency mixer, the 6th frequency mixer and frequency tripler；The two of 4th frequency mixer
Individual input drives branch road and second to drive the first defeated of branch road with first respectively as the first input end of signal processing apparatus
Go out end connection, the output end of the 4th frequency mixer is connected with the input of frequency tripler, the output end of frequency tripler and meanwhile with
Another input of one input connection of the 5th frequency mixer and the 6th frequency mixer, the 5th frequency mixer and the 6th frequency mixer is same
The output end connection of Shi Yu three-mixers, two inputs of three-mixer as signal processing apparatus the second input
It is connected with second output end and reception antenna of the second driving branch road respectively, the output end point of the 5th frequency mixer and the 6th frequency mixer
Not as first output end and the second output end of signal processing apparatus.
5. revolution door type radar imagery safety check instrument according to claim 1, it is characterised in that the signal pickup assembly bag
Include the first wave filter, the second wave filter, the first single-ended transfer difference module and the second single-ended transfer difference module；First wave filter
With the input of the second wave filter respectively as signal pickup assembly first input end and the second input, the first wave filter
Output end is connected with the input of the first single-ended transfer difference module, the output end of the second wave filter and the second single-ended transfer difference module
Input connection, the output end of the first single-ended transfer difference module and the second single-ended transfer difference module is used as signal pickup assembly
First output end and the second output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140729.2A CN106932831A (en) | 2017-03-10 | 2017-03-10 | Revolution door type radar imagery safety check instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140729.2A CN106932831A (en) | 2017-03-10 | 2017-03-10 | Revolution door type radar imagery safety check instrument |
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| Publication Number | Publication Date |
|---|---|
| CN106932831A true CN106932831A (en) | 2017-07-07 |
Family
ID=59432774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710140729.2A Pending CN106932831A (en) | 2017-03-10 | 2017-03-10 | Revolution door type radar imagery safety check instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025415A (en) * | 2020-01-10 | 2020-04-17 | 滨州学院 | Transmission device of millimeter wave security check instrument |
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| CN106019276A (en) * | 2016-08-03 | 2016-10-12 | 华讯方舟科技有限公司 | Millimeter-wave imaging device |
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| US7002511B1 (en) * | 2005-03-02 | 2006-02-21 | Xytrans, Inc. | Millimeter wave pulsed radar system |
| CN102565793A (en) * | 2011-12-30 | 2012-07-11 | 北京华航无线电测量研究所 | Millimeter-wave imaging system for omni-directional scanning of single antenna array |
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| CN111025415A (en) * | 2020-01-10 | 2020-04-17 | 滨州学院 | Transmission device of millimeter wave security check instrument |
| CN111025415B (en) * | 2020-01-10 | 2022-02-25 | 滨州学院 | Transmission device of millimeter wave security check instrument |
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Application publication date: 20170707 |