CN206258578U - A kind of alignment system - Google Patents
A kind of alignment system Download PDFInfo
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- CN206258578U CN206258578U CN201621323748.6U CN201621323748U CN206258578U CN 206258578 U CN206258578 U CN 206258578U CN 201621323748 U CN201621323748 U CN 201621323748U CN 206258578 U CN206258578 U CN 206258578U
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- radar
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- frequency amplifier
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- radar installations
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Abstract
The utility model is related to radar fix field, more particularly to a kind of alignment system.A kind of alignment system of the utility model design includes FMCW radar device, range finder module, ID identification modules, central processing unit and some position beacons being connected with FMCW radar device, the signal modulation of information is identified to radar signal on object under test, identification and range measurement of the radar to the echo signal is realized, so as to meet identification range finding of single or multiple radars to multiple target, and according to location technology, realize the positioning of object under test.
Description
Technical field
The utility model is related to radar fix field, more particularly to a kind of alignment system.
Background technology
The more and more extensive of application is captured in current domestic communication field using radar mode, is especially tested the speed on highway
Nearly all it is to be captured using radar mode.The radar of the big most of uses of existing market is flat-plate narrow Beam radar, also referred to as narrow
Ripple radar.
However, current radar cannot accurately realize the identification and range measurement to echo signal, so can not just expire
Identification range finding of the single or multiple radars of foot to multiple target, and according to location technology, realize the positioning of object under test.
For example：For object space positioning and translational speed measurement, gps satellite positioning side is used in outdoor at present
Formula is indoor or some special screnes in there is no gps signal, be accurately positioned nothing but；It is fixed using magnetic conductance in some special industries
Position, laser positioning, the technology such as wireless strengths positioning and UWB positioning, those technologies are still present precision not enough, install not at present
Just, and the problems such as solution high cost, therefore need a kind of new location technology badly and meet increasingly urgent high-precision fixed
Position demand.
Utility model content
In view of the above problems, the utility model provides a kind of alignment system.
A kind of alignment system, wherein, including：
Radar installations；
Range finder module, is connected with the radar installations；
ID identification modules, are connected with the radar installations；
Central processing unit, is connected with the range finder module and the ID identification modules respectively；
Some position beacons with the radar installations by being wirelessly connected.
Above-mentioned system, wherein, each described position beacon includes：
Reception antenna；
First radio frequency amplifier, is connected with the reception antenna；
Orthogonal mixer, is connected with first radio frequency amplifier；
ID generators and the second radio frequency amplifier, are connected with the orthogonal mixer respectively；
Transmitting antenna, is connected with second radio frequency amplifier.
Above-mentioned system, wherein, the radar installations includes：
Frequency swept transmitter；
Radio frequency amplifier, is connected with the frequency swept transmitter；
Circulator, is connected with the radio frequency amplifier；
Frequency mixer and dual-mode antenna, are connected with the circulator respectively, and the dual-mode antenna by wirelessly with the hair
Penetrate antenna connection；
Spectral signal analysis module, is connected with the frequency mixer.
Above-mentioned system, wherein, each described position beacon produces unique pseudorandom of the position beacon by CDMA
Code.
Above-mentioned system, wherein, the quantity of the position beacon is more than or equal to 4.
Above-mentioned system, wherein, the radar installations is FMCW radar device.
In sum, a kind of alignment system of the utility model design, is identified on object under test to radar signal
The signal modulation of information, realizes identification and range measurement of the radar to the echo signal, so as to meet single or multiple radars
Identification range finding to multiple target, and according to location technology, realize the positioning of object under test.
Brief description of the drawings
With reference to appended accompanying drawing, more fully to describe embodiment of the present utility model.However, appended accompanying drawing is only used for
Bright and elaboration, does not constitute the limitation to the utility model scope.
Fig. 1 is that the utility model is based on the structural representation that multiple fixed positions radar realizes Multi-target position；
Fig. 2 is the electrical block diagram that the utility model position beacon modulates ID signals；
Fig. 3 is the utility model fmcw radar structural representation；
Fig. 4 is the structural representation that the single fixed radar of the utility model realizes Multi-target position.
Specific embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, but not as this practicality
New restriction.
The utility model is more particularly to a kind of to be based on modulating identification signal to be measured to radar signal, by recognizing instrumentation radar
Distance to examining system realizes that position positions.
Radar range finding technology.Radar range finding technology is by measurement transmitting radio wave and by after space propagation, to quilt
Time or the dependent frequency deviation of the radio wave of object reflection are surveyed, realizes surveying the distance and mobile speed of target object
Amount.Radar generally has CW radars, and pulse radar and fmcw radar etc. can be real to all of Radar Technology the utility model
With.
Modulation technique is to carry out signal modulation to radio signal, there is amplitude modulation AM, modulating FM, impulse modulation PM, QPSK number
Word modulate, the utility model be applicable using it is all can with modulation technique.The nothing that a kind of multiple access of CMDA code domain modulation techniques is accessed
Line communication technology, CDMA is modulated demodulating information by orthogonal code.A information by unique pseudo noise code Ci spread after, only
Can be closed by corresponding Ci code-phases and demodulate A information.The utility model includes carrying out subscriber-coded identification using CDMA technology.
Location technology is, to the distance of each coordinate, to be obtained by measuring and calculating based on multiple known location coordinates and tested point
The position of tested point, such as：For a three dimensions, the locus of tested point can be accurately known based on four known coordinates
(x,y,z)
Algorithm is exactly to solve range equation group：
(x-x0)2+(y-y0)2+(z-z0)2=d0 2
(x-x1)2+(y-y1)2+(z-z1)2=d1 2
(x-x2)2+(y-y2)2+(z-z2)2=d2 2
(x-x3)2+(y-y2)2+(z-z2)2=d3 2
The utility model is the signal modulation that design is identified information on object under test to radar signal, realizes radar
Identification and range measurement to the echo signal, so as to meet identification range finding of single or multiple radars to multiple target, and root
According to location technology, the positioning of object under test is realized.
Preferably, using fmcw radar technology, by setting swept bandwidth, the radar of correspondence resolution ratio is realized, realizes thunder
Reach the accurate distance measurement of target to be measured.The utility model scheme is equally applicable to the radar of other forms.
Preferably, using multipoint positioning algorithm, realize realizing positioning to the distance of single target simultaneously by multiple radars,
The positioning of usual three-dimensional coordinate needs 4 information sources.Different frequency is operated in simultaneously by 4 radars, completes radar to positioning mesh
Mark multiple spot range measurement, the positional information of targeted customer is calculated by multiple spot distance.Can also be by setting position system to be measured
Single radar is installed, by measuring the radar to the distance of multiple fixed positions beacon, the positioning to the system position is realized, together
Sample position beacon is more than 4, realizes the positioning of radar system position three-dimensional coordinate.
Preferably, unique identity identification information ID is produced by CDMA technology to target to be measured or position beacon
code.ID code are being carried out by the single or multiple radar signal that target to be measured and position beacon pair are received simultaneously just
Intermodulation system, launches after amplification.Radar system is demodulated the distance for analyzing target to be measured to the modulation radar signal for receiving.
Preferably, the range measurement to the multiple spot known location of single goal is collected using suitable mechanics of communication, by fixed
Position algorithm obtains the position of targeted customer.The positional information can be used as the positioning of targeted customer, navigation.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the application designs a kind of alignment system, specifically includes：
Radar installations；Radar installations；Specially FMCW radar device；
Range finder module, is connected with FMCW radar device；
ID identification modules, are connected with FMCW radar device；
Central processing unit, is connected with range finder module and ID identification modules respectively；
Wherein, some position beacons with FMCW radar device by being wirelessly connected.
Wherein, each described position beacon includes：
Reception antenna；
First radio frequency amplifier, is connected with reception antenna；
Orthogonal mixer, is connected with the first radio frequency amplifier；
ID generators and the second radio frequency amplifier, are connected with orthogonal mixer respectively；
Transmitting antenna, is connected with the second radio frequency amplifier.
Each FMCW radar device includes：
Frequency swept transmitter；
Radio frequency amplifier, is connected with frequency swept transmitter；
Circulator, is connected with radio frequency amplifier；
Frequency mixer and dual-mode antenna, are connected with circulator respectively, and the dual-mode antenna by wirelessly with the transmitting day
Line is connected；
Spectral signal analysis module, is connected with the frequency mixer.
Embodiment one
For the imperfection of prior art, the utility model is provided a kind of range finding to sign beacon based on radar and realizes positioning
Method.The method does not rely on the gps signal of tradition positioning, can be widely applied to high accuracy indoor positioning and particular field
The outdoor positioning of scape.
The localization method goes for the fixed position measurement for being more than 4 radar systems, completing overlay area multiple target,
As shown in Figure 1, it is also possible to be more than 4 fixed beacon systems by setting, radar system position measurement is completed, as shown in Figure 4.
The whole implementation framework of multiple target test is completed as shown in figure 1, in figure for fixed radar system：101,
103 is fmcw radar system, its operation principle as shown in figure 3, range finding and ID identification modules 102,104,105 be position calculate and
Communication, 108,109 is Devices to test, and its operation principle is as shown in Figure 2.
Fmcw radar system launches the continuous wave of frequency sweep by swept-frequency signal transmitter 301, is put by radio frequency amplifier 302
After big, launch, the frequency-scan radar radiofrequency signal warp of transmitting by dual-mode antenna 306 (be equal to Fig. 1 in antenna 106/107)
Received by the reception antenna 201 of ID to be measured after crossing airborne spread, amplified by the radio frequency of radio frequency amplifier 202, it is complete in frequency mixer 203
The orthogonal modulation (other modulation techniques, such as FM, AM, PM etc. can also be used) of paired measured signal ID, wherein orthogonal modulation
I, Q signal comes from the ID signal generators of ID generators 204, in ID generators 204, can be produced using CMDA technologies
The unique pseudo noise code IQ sequences of identity (can also be using other demarcation modes).By the radar of mixed modulated identity id information
Signal, is launched by being sent to transmitting antenna 206 after the amplification of radio frequency amplifier 205.
Fmcw radar receives the radar signal for having modulated identity id information by antenna 306, (can by circulator 303
Choosing) feeding frequency mixer 304 is mixed, and is finally sent into spectral signal analysis module 305, after LPF, eliminates the load of radar
Ripple signal, obtains the associated frequency information of the Doppler frequency shift and modulation identity ID produced with Devices to test ID distances, movement,
It is sent in range finding and ID identification modules 104.Known by known CDMA orthogonal pseudo-randoms code in range finding and ID identification modules 104
Devices to test distance and many Prey frequency shift informations are not calculated.It is achieved thereby that distance and tachometric survey to the Devices to test.
When have multiple Devices to tests simultaneously operation, the Devices to test 108,109 of such as Fig. 1, due to the correlation of CDMA orthogonal codes, can
With in identification module, different identity CDMA code divisions using Devices to test 108 to 109 are not orthogonal related to identify that each is to be measured
The distance and velocity information of equipment 108 and 109.
When simultaneously multiple radars work, the FMCW 101,103 of such as Fig. 1, by configuring radar starting swept frequency deviation not
Equally, each radar is allowed will not to be operated in identical frequency, the swept frequency deviation between radar sets the IQ intermediate frequencies more than Fig. 2
The frequency sum that ultimate range and speed band are come in peak frequency (carrier wave+bandwidth/2) and coverage.This makes it possible to distinguish
Go out each radar surveying signal, worked while so as to allow multiple radars not interfere with.
Calculated by position and communication 105 is synchronized to each radar and measures Devices to test distance, the position letter according to radar
Breath, the positional information of Devices to test is calculated by location algorithm, realizes the positioning of the measured signal.
For set be more than 4 fixed beacon systems, complete radar system position measurement application block diagram as shown in figure 4,
Radar antenna 402, range finding and ID identification modules 403, the principle of its work by radar system 401 as described above, complete multiple
Fixed position beacon (405,406,407,408) position measurement, calculates radar system position in position calculates and communicates 404
Put.
In sum, a kind of alignment system of the utility model design, is identified on object under test to radar signal
The signal modulation of information, realizes identification and range measurement of the radar to the echo signal, so as to meet single or multiple radars
Identification range finding to multiple target, and according to location technology, realize the positioning of object under test.
By explanation and accompanying drawing, the exemplary embodiments of the ad hoc structure of specific embodiment are given, it is new based on this practicality
Type spirit, can also make other conversions.Although above-mentioned utility model proposes existing preferred embodiment, however, these contents
It is not intended as limitation.
For a person skilled in the art, after reading described above, various changes and modifications undoubtedly will be evident that.
Therefore, appending claims should regard the whole variations and modifications for covering true intention of the present utility model and scope as.
Any and all scope and content of equal value, are all considered as still belonging to intention of the present utility model and model in Claims scope
In enclosing.
Claims (6)
1. a kind of alignment system, it is characterised in that including：
Radar installations；
Range finder module, is connected with the radar installations；
ID identification modules, are connected with the radar installations；
Central processing unit, is connected with the range finder module and the ID identification modules respectively；
Some position beacons with the radar installations by being wirelessly connected.
2. system according to claim 1, it is characterised in that each described position beacon includes：
Reception antenna；
First radio frequency amplifier, is connected with the reception antenna；
Orthogonal mixer, is connected with first radio frequency amplifier；
ID generators and the second radio frequency amplifier, are connected with the orthogonal mixer respectively；
Transmitting antenna, is connected with second radio frequency amplifier.
3. system according to claim 2, it is characterised in that the radar installations includes：
Frequency swept transmitter；
Radio frequency amplifier, is connected with the frequency swept transmitter；
Circulator, is connected with the radio frequency amplifier；
Frequency mixer and dual-mode antenna, are connected with the circulator respectively, and the dual-mode antenna by wirelessly with the transmitting day
Line is connected；
Spectral signal analysis module, is connected with the frequency mixer.
4. system according to claim 1, it is characterised in that each described position beacon produces the position by CDMA
Unique pseudo noise code of beacon.
5. system according to claim 1, it is characterised in that the quantity of the position beacon is more than or equal to 4.
6. system according to claim 1, it is characterised in that the radar installations is FMCW radar device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621323748.6U CN206258578U (en) | 2016-12-05 | 2016-12-05 | A kind of alignment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621323748.6U CN206258578U (en) | 2016-12-05 | 2016-12-05 | A kind of alignment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206258578U true CN206258578U (en) | 2017-06-16 |
Family
ID=59026772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621323748.6U Expired - Fee Related CN206258578U (en) | 2016-12-05 | 2016-12-05 | A kind of alignment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206258578U (en) |
-
2016
- 2016-12-05 CN CN201621323748.6U patent/CN206258578U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20191205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |