CN206757046U - A kind of Big Dipper locating module electromagnetic interference resistant device - Google Patents
A kind of Big Dipper locating module electromagnetic interference resistant device Download PDFInfo
- Publication number
- CN206757046U CN206757046U CN201720238826.0U CN201720238826U CN206757046U CN 206757046 U CN206757046 U CN 206757046U CN 201720238826 U CN201720238826 U CN 201720238826U CN 206757046 U CN206757046 U CN 206757046U
- Authority
- CN
- China
- Prior art keywords
- big dipper
- signal
- locating module
- bandpass filters
- interface filter
- 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
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a kind of Big Dipper locating module electromagnetic interference resistant device, described device has the Big Dipper location receiver of electromagnetism interference, the Big Dipper location receiver of electromagnetism interference includes narrow-band reception antenna, first order BPF bandpass filters, LNA low-noise amplifiers, second level BPF bandpass filters, electromagnetic interface filter and signal processor, narrow-band reception antenna, first order BPF bandpass filters, LNA low-noise amplifiers, second level BPF bandpass filters and the signal processor are sequentially connected, electromagnetic interface filter one end is connected with power supply, the electromagnetic interface filter other end is connected with LNA low-noise amplifiers and signal processor respectively.The utility model has the advantages of small volume, easy for installation, low in energy consumption, strong antijamming capability.By substantial amounts of test, in the case where communication station works, Big Dipper locating module can be positioned normally.
Description
Technical field
It the utility model is related to satellite navigation positioning technical field, and in particular to a kind of Big Dipper locating module electromagnetism interference
Device.
Background technology
The location information of marine marker and various sensor informations are required for being sent to distant place control by communication station
Website.Due to being influenceed by buoy volume, installation dimension, the transmitting antenna of communication station and satellite positioning device apart from close,
The higher hamonic wave of communication station transmission signal can fall in the Big Dipper/GPS frequency range.Different marine markers is arranged to different frequencies
Point, the quantity of buoy is more, and therefore, the frequency of the higher hamonic wave for the communication station do not installed on concentric float also differs, so,
Satellite positioning device needs to keep normal work under the communication station disturbed condition of different frequency range.
Current existing universal satellite fix product can not be worked due to no carry out targeted design in communication station
In the case of keep normal positioning.And the volume of the satellite fix product of use interference protection measure is larger, cost is also higher, nothing
Method adapts to the use environment of buoy.
Utility model content
The purpose of this utility model is to provide a kind of Big Dipper locating module electromagnetic interference resistant device, led to solve buoy
Believe interference problem of the radio station to satellite positioning device.
To achieve the above object, the utility model discloses following technical scheme：
The utility model discloses a kind of Big Dipper locating module electromagnetism interference method, methods described includes：Narrow-band reception
Antenna is by signal reception bandwidth range shorter and is limited in the bandwidth range of satellite navigation positioning signal；Satellite navigation positioning letter
Number via first order BPF bandpass filters carry out a bandpass filtering treatment；Satellite navigation positioning signal is put via LNA low noises
Big device carries out advance signal enhanced processing；Satellite navigation positioning signal carries out secondary band logical via second level BPF bandpass filters
Filtering process；Satellite navigation positioning signal carries out location Calculation via signal processor；Location Calculation result is via data transfer
Line is sent to the communication station in marine infomation detection buoy；And communication station sends the location Calculation result after processing to remote
Process control website；Wherein, power supply is respectively that LNA low-noise amplifiers and signal processor are powered via electromagnetic interface filter, EMI filters
Ripple device is filtered isolation processing to power supply.
A kind of above-mentioned Big Dipper locating module electromagnetism interference method disclosed in the utility model, the satellite navigation positioning letter
Number via signal processor carry out location Calculation include：Signal acquisition is carried out via analog-digital converter and is converted into analog signal
Data signal；Fast Fourier conversion is carried out to signal via FFT signal processors；Via signal peak power discrimination module root
Interference signal is determined whether according to signal peak power；There is into abnormal do in signal peak power via BSF bandstop filters
Signal is disturbed to filter；Positioning position information is extracted via pseudo-range information of the information extraction modules in signal；With via information meter
Calculate module and position location and output result are calculated according to positioning position information.
A kind of above-mentioned Big Dipper locating module electromagnetism interference method disclosed in the utility model, when the signal peak power
Discrimination module find signal peak power value higher than make an uproar bottom 3dB when, then be judged as interference signal.
A kind of above-mentioned Big Dipper locating module electromagnetism interference method, methods described also include disclosed in the utility model：By
First order BPF bandpass filters, LNA low-noise amplifiers, second level BPF bandpass filters, electromagnetic interface filter and signal processor
The Big Dipper position receiver mounted circuit board being integrated to form is located at the letter formed by all-in-one mounting shell square cavity and shielding space bar
In number shielding space；Opening is left above square cavity and is used for that narrow-band reception antenna is installed to receive in the signal shielding space
Satellite navigation positioning signal；And the signal shielding space covers in shielding space bar and circular base and leaves cable-through hole for arranging
Power line and data line.
A kind of above-mentioned Big Dipper locating module electromagnetism interference method disclosed in the utility model, the all-in-one mounting shell by
Aluminium alloy is prepared to form metal signal shielding space.
The invention also discloses a kind of Big Dipper locating module electromagnetic interference resistant device, there is described device anti-electromagnetism to do
The Big Dipper location receiver disturbed, the Big Dipper location receiver of the electromagnetism interference include narrow-band reception antenna, first order BPF bands
Bandpass filter, LNA low-noise amplifiers, second level BPF bandpass filters, electromagnetic interface filter and signal processor, the arrowband connect
Receive antenna, the first order BPF bandpass filters, the LNA low-noise amplifiers, the second level BPF bandpass filters and
The signal processor is sequentially connected, and the input of the electromagnetic interface filter is connected with power supply, the output end of the electromagnetic interface filter
It is connected respectively with the LNA low-noise amplifiers and the signal processor.
A kind of above-mentioned Big Dipper locating module electromagnetic interference resistant device, the first order BPF band logicals disclosed in the utility model
At wave filter, the LNA low-noise amplifiers, the second level BPF bandpass filters, the electromagnetic interface filter and the signal
Reason device integrates to form Big Dipper position receiver mounted circuit board.
The invention also discloses a kind of Big Dipper locating module electromagnetic interference resistant device, the Big Dipper position receiver is electromechanical
Road plate is fixed on the face of the shielding space bar in all-in-one mounting shell square cavity, on the Big Dipper position receiver mounted circuit board
The first order BPF bandpass filters narrow-band reception antenna is connected to by MMCX radio-frequency joints, the narrow-band reception antenna passes through
Square frame-shaped screening cover is covered on square cavity, and the electromagnetic interface filter on the Big Dipper position receiver mounted circuit board is connected with power line,
Power line is stretched out and is connected to from all-in-one mounting shell circular cavity by the cable-through hole for shielding space bar and circular base covers
Power supply.
A kind of above-mentioned Big Dipper locating module electromagnetic interference resistant device, the signal processor include disclosed in the utility model
Analog-digital converter, FFT signal processors, central processing unit and BSF bandstop filters, the analog-digital converter, the FFT signals
Processor and the central processing unit are sequentially connected, and the central processing unit is respectively connecting to the BSF bandstop filters and institute
State electromagnetic interface filter.
A kind of above-mentioned Big Dipper locating module electromagnetic interference resistant device, the central processing unit include disclosed in the utility model
Signal peak power discrimination module, information extraction modules and information computational module, it is the signal peak power discrimination module, described
Information extraction modules and described information computing module are sequentially connected, and the signal peak power discrimination module is connected to the FFT
Signal processor, the signal peak power discrimination module, the BSF bandstop filters and described information extraction module connect successively
Connect.
The utility model has the following advantages that：
The utility model has the advantages of small volume, easy for installation, low in energy consumption, strong antijamming capability.Surveyed by substantial amounts of
Examination, in the case where communication station works, Big Dipper locating module can be positioned normally.
Brief description of the drawings
Fig. 1 is a kind of Big Dipper location receiver of Big Dipper locating module electromagnetic interference resistant device disclosed in the utility model
Circuit connection diagram.
Fig. 2 is a kind of structure of the signal processor of Big Dipper locating module electromagnetic interference resistant device disclosed in the utility model
Schematic diagram.
Fig. 3 is a kind of satellite navigation positioning signal of Big Dipper locating module electromagnetism interference method disclosed in the utility model
The flow chart of location Calculation is carried out via signal processor.
Fig. 4 is a kind of the vertical of all-in-one mounting shell of Big Dipper locating module electromagnetic interference resistant device disclosed in the utility model
Body structural representation.
Fig. 5 is a kind of facing upward for all-in-one mounting shell of Big Dipper locating module electromagnetic interference resistant device disclosed in the utility model
View.
Fig. 6 is the structural representation of the circular bottom of all-in-one mounting shell disclosed in the utility model.
Fig. 7 is a kind of bowing for all-in-one mounting shell of Big Dipper locating module electromagnetic interference resistant device disclosed in the utility model
View.
Fig. 8 is a kind of knot of the square frame-shaped screening cover of Big Dipper locating module electromagnetic interference resistant device disclosed in the utility model
Structure schematic diagram.
Embodiment
Following examples are used to illustrate the utility model, but are not limited to the scope of the utility model.
Embodiment 1
With reference to figure 1, a kind of Big Dipper locating module electromagnetic interference resistant device disclosed in the present embodiment has electromagnetism interference
Big Dipper location receiver, the Big Dipper location receiver of electromagnetism interference includes narrow-band reception antenna 12, first order BPF band logicals are filtered
Ripple device 13, LNA low-noise amplifiers 14, second level BPF bandpass filters 15, electromagnetic interface filter 16 and signal processor 17, arrowband
Reception antenna 12, first order BPF bandpass filters 13, LNA low-noise amplifiers 14, second level BPF bandpass filters 15 and letter
Number processor 17 is sequentially connected, and the input of electromagnetic interface filter 16 is connected with power supply 18, the output end of electromagnetic interface filter 16 respectively with
LNA low-noise amplifiers 14 and signal processor 17 connect.First order BPF bandpass filters 13, LNA low-noise amplifiers 14,
Second level BPF bandpass filters 15, electromagnetic interface filter 16 and signal processor 17 integrate to form Big Dipper position receiver electromechanics
Road plate.
Above-mentioned Big Dipper position receiver mounted circuit board is fixed in all-in-one mounting shell, with reference to figure 4-8, all-in-one mounting shell tool
Have by circular cavity 01 and square cavity 02 integrally formed main casing and circular bottom 03, circular cavity 01 and square cavity 02
Between be provided with shielding space bar 04, shield and be respectively arranged with a circular cable-through hole on space bar 04 and circular bottom 03
05, multiple bottom mounting holes 09, the circular Gai Yuan of bottom 03 are respectively arranged with the outer face of circular cavity 01 and circular bottom 03
On shape cavity 01, narrow-band reception antenna 12 is square signal reception antenna (not shown), Big Dipper position receiver mounted circuit board
Big Dipper location receiver is formed with square signal reception antenna, specifically, Big Dipper position receiver mounted circuit board is arranged on rectangular cavity
In body 02, shield and multiple Big Dipper position receiver mounted circuit board mounting holes 06 are provided with space bar 04, Big Dipper position receiver is electromechanical
Road plate is fixed to the face of the shielding space bar 04 in square cavity 02 by multiple Big Dipper position receiver mounted circuit board mounting holes 06
On, square signal reception antenna is covered on square cavity 02, and square signal reception antenna is installed by square frame-shaped screening cover 07
To square cavity 02, multiple screens are respectively arranged with the position at the angle of the upper surface of square cavity 02 and square frame-shaped screening cover 07
Lid mounting hole 08 is covered, the square signal reception antenna is fixed in the square frame of screening cover, and square signal reception antenna passes through
MMCX radio-frequency joints are connected to Big Dipper position receiver mounted circuit board, in other words, the first order on Big Dipper position receiver mounted circuit board
BPF bandpass filters 13 are connected to narrow-band reception antenna 12 by MMCX radio-frequency joints, and narrow-band reception antenna 12 passes through square frame-shaped
Screening cover 07 is covered on square cavity 02, and the electromagnetic interface filter 16 on Big Dipper position receiver mounted circuit board is connected with power line, power supply
Line stretches out and connected from all-in-one mounting shell circular cavity 01 by shielding the cable-through hole 05 on space bar 04 and circular bottom 03
It is connected to power supply 18.
In addition, as best shown in figures 5 and 7, main casing both sides are respectively arranged with lug 10, and structure mounting hole is provided with lug 10
11, all-in-one mounting shell is formed by metal screen layer and waterproof layer, and waterproof layer is plated in the outside of metal screen layer, metal screen layer
It can be aluminium alloy screen layer.
Above-mentioned all-in-one mounting shell and Big Dipper location receiver form a kind of microminiature Big Dipper locating module, and it passes through main casing
Structure mounting hole 11 on body both sides lug 10 is attached in marine infomation detection buoy to be determined for marine infomation detection buoy
, multiple detection sensors and communication station are also equipped with marine infomation detection buoy, multiple detection sensors and the Big Dipper are determined
Position circuit board receiver is connected to communication station (not shown) by serial ports.Wherein, the positioning of marine infomation detection buoy
Method includes：Square signal reception antenna receives the positioning signal from Big Dipper position location satellite；Big Dipper position receiver mounted circuit board
The positioning signal that square shaped signal receiving antenna receives is handled；Will by the communication station in marine infomation detection buoy
Positioning signal after processing is sent to remote control website.
Further, analog-digital converter (ADC) 19, FFT signal processors are included with reference to figure 2, above-mentioned signal processor 17
20th, central processing unit 21 and BSF bandstop filters 22, analog-digital converter 19, FFT signal processors 20 and central processing unit 21 according to
Secondary connection, central processing unit 21 are respectively connecting to BSF bandstop filters 22 and electromagnetic interface filter 16.Further, central processing unit
21 include signal peak power discrimination module 23, information extraction modules 24 and information computational module 25, and signal peak power differentiates
Module 23, information extraction modules 24 and information computational module 25 are sequentially connected, and signal peak power discrimination module 23 is connected to FFT
Signal processor 20, signal peak power discrimination module 23, BSF bandstop filters 22 and information extraction modules 24 are sequentially connected.
With reference to figure 1, a kind of Big Dipper locating module electromagnetism interference method includes：Signal is received band by narrow-band reception antenna 12
Wide scope reduces and is limited in the bandwidth range of satellite navigation positioning signal；Satellite navigation positioning signal is via first order BPF
Bandpass filter 13 carries out a bandpass filtering treatment；Before satellite navigation positioning signal is carried out via LNA low-noise amplifiers 14
Confidence enhanced processing；Satellite navigation positioning signal carries out secondary bandpass filtering treatment via second level BPF bandpass filters 15；
Satellite navigation positioning signal carries out location Calculation via signal processor 17；Location Calculation result via data line send to
Communication station in marine infomation detection buoy；And communication station sends the location Calculation result after processing to remote control station
Point；Wherein, power supply 18 is respectively that LNA low-noise amplifiers 14 and signal processor 17 are powered via electromagnetic interface filter 16, EMI filters
Ripple device 16 is filtered isolation processing to power supply.
Further, with reference to figure 3, satellite navigation positioning signal carries out location Calculation via signal processor 17 to be included：Through
Signal acquisition is carried out by analog-digital converter 19 and analog signal is converted into data signal；Via FFT signal processors 20 to letter
Number carry out fast Fourier conversion；Determine whether to disturb according to signal peak power via signal peak power discrimination module 23
Signal, when the peak power value of the discovery signal of signal peak power discrimination module 23, which is higher than, makes an uproar bottom 3dB, then it is judged as interference letter
Number；Signal peak power into abnormal interference signal occurs via BSF bandstop filters 22 to filter；Via information extraction modules 24
Pseudo-range information extraction positioning position information in signal；Calculated with via information computational module 25 according to positioning position information
Position location and output result.
In addition, a kind of above-mentioned Big Dipper locating module electromagnetism interference method disclosed in the present embodiment also includes：By first
At level BPF bandpass filters 13, LNA low-noise amplifiers 14, second level BPF bandpass filters 15, electromagnetic interface filter 16 and signal
The Big Dipper position receiver mounted circuit board that reason device 17 is integrated to form is located at by all-in-one mounting shell square cavity 02 and shielding space bar
In the 04 signal shielding space formed, wherein, all-in-one mounting shell is prepared empty to form metal signal shielding by aluminium alloy
Between；Opening is left above square cavity 02 and is determined for installing narrow-band reception antenna 12 with receiving satellite navigation in signal shielding space
Position signal；And signal shielding space shielding space bar 04 and circular bottom 03 on leave cable-through hole 05 be used for arrange power line and
Data line.
A kind of above-mentioned Big Dipper locating module electromagnetism interference method disclosed in the present embodiment, from configuration aspects, microminiature north
Bucket locating module takes into full account electromagnetic shielding measure, solves the installation question of Big Dipper location receiver and increases electromagnetic shielding effect
Fruit；In terms of radiating and conducting two, first, application specific narrow-band reception antenna solves the problems, such as radiation interference, reduces band
Outer communication station interference signal positions the influence of Big Dipper location receiver to satellite navigation；In addition, the work for communication station
Working frequency, twice the signal low-noise amplification circuit of application specific, filter circuit and power filter isolation circuit, solve conduction
Interference problem；In terms of data calculate processing, the frequency of interference signal is calculated using FFT and filters out interference letter with bandstop filter
Number, so as to ensure that communication station disturbed condition Big Dipper locating module also can be positioned normally.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, the these modifications or improvements on the basis of without departing from the utility model spirit, belonging to the utility model will
Seek the scope of protection.
Claims (5)
1. a kind of Big Dipper locating module electromagnetic interference resistant device, it is characterised in that described device has the Big Dipper of electromagnetism interference
Location receiver, the Big Dipper location receiver of the electromagnetism interference include narrow-band reception antenna, first order BPF bandpass filterings
Device, LNA low-noise amplifiers, second level BPF bandpass filters, electromagnetic interface filter and signal processor, the narrow-band reception day
Line, the first order BPF bandpass filters, the LNA low-noise amplifiers, second level BPF bandpass filters and described
Signal processor is sequentially connected, and the input of the electromagnetic interface filter is connected with power supply, the output end difference of the electromagnetic interface filter
It is connected with the LNA low-noise amplifiers and the signal processor.
A kind of 2. Big Dipper locating module electromagnetic interference resistant device as claimed in claim 1, it is characterised in that the first order
BPF bandpass filters, the LNA low-noise amplifiers, the second level BPF bandpass filters, the electromagnetic interface filter and described
Signal processor integrates to form Big Dipper position receiver mounted circuit board.
A kind of 3. Big Dipper locating module electromagnetic interference resistant device as claimed in claim 2, it is characterised in that the Big Dipper positioning
Circuit board receiver is fixed on the face of the shielding space bar in all-in-one mounting shell square cavity, the Big Dipper location receiver
First order BPF bandpass filters on circuit board are connected to narrow-band reception antenna, the narrow-band reception by MMCX radio-frequency joints
Antenna is covered on square cavity by square frame-shaped screening cover, the electromagnetic interface filter connection on the Big Dipper position receiver mounted circuit board
There is a power line, power line is stretched out by the cable-through hole for shielding space bar and circular base covers from all-in-one mounting shell circular cavity
And it is connected to power supply.
A kind of 4. Big Dipper locating module electromagnetic interference resistant device as claimed in claim 1, it is characterised in that the signal transacting
Device includes analog-digital converter, FFT signal processors, central processing unit and BSF bandstop filters, the analog-digital converter, described
FFT signal processors and the central processing unit are sequentially connected, and the central processing unit is respectively connecting to the BSF bandreject filterings
Device and the electromagnetic interface filter.
A kind of 5. Big Dipper locating module electromagnetic interference resistant device as claimed in claim 4, it is characterised in that the central processing
Device includes signal peak power discrimination module, information extraction modules and information computational module, and the signal peak power differentiates mould
Block, described information extraction module and described information computing module are sequentially connected, and the signal peak power discrimination module is connected to
The FFT signal processors, the signal peak power discrimination module, the BSF bandstop filters and described information extraction mould
Block is sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720238826.0U CN206757046U (en) | 2017-03-13 | 2017-03-13 | A kind of Big Dipper locating module electromagnetic interference resistant device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720238826.0U CN206757046U (en) | 2017-03-13 | 2017-03-13 | A kind of Big Dipper locating module electromagnetic interference resistant device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206757046U true CN206757046U (en) | 2017-12-15 |
Family
ID=60609025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720238826.0U Active CN206757046U (en) | 2017-03-13 | 2017-03-13 | A kind of Big Dipper locating module electromagnetic interference resistant device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206757046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376612A (en) * | 2019-05-07 | 2019-10-25 | 北京国科导通科技有限公司 | A kind of satellite receiver |
-
2017
- 2017-03-13 CN CN201720238826.0U patent/CN206757046U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376612A (en) * | 2019-05-07 | 2019-10-25 | 北京国科导通科技有限公司 | A kind of satellite receiver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2602030A1 (en) | Method and apparatus for coupling a meter register to an automatic meter reading communication device | |
| CN106774106A (en) | Embedded satellite monitoring platform | |
| CN217358742U (en) | Cavitation state monitoring system for water turbine | |
| CN206757046U (en) | A kind of Big Dipper locating module electromagnetic interference resistant device | |
| CN106680840A (en) | Anti-electromagnetic interference method and device of Beidou positioning module | |
| CN206531964U (en) | A kind of microminiature Big Dipper locating module | |
| CN106646533A (en) | Subminiature Beidou positioning module and application method | |
| CN103593960A (en) | Configurable wireless data acquirer | |
| CN204044197U (en) | A kind of GIS external sensor | |
| CN207586435U (en) | Space-based Information application seismic observation system | |
| CN214847054U (en) | Karst collapse monitoring and early warning system | |
| CN206060773U (en) | A kind of shielded box with USB interface | |
| CN104267412A (en) | Naval vessel Beidou satellite navigation anti-interference system | |
| CN214253436U (en) | Airborne answering device | |
| CN209776744U (en) | Integrated multifunctional E navigation mark equipment | |
| CN215728589U (en) | Modular TEV partial discharge sensing equipment | |
| CN113721195A (en) | Four-channel hydrophone array based on deep-water underwater glider and operation method | |
| CN210693933U (en) | Multifunctional wireless signal module extender | |
| CN107807312B (en) | Ultrahigh frequency partial discharge detection method | |
| CN217181055U (en) | Radio frequency spectrum detection device | |
| CN210222181U (en) | UHF sensor for external GIS partial discharge detection | |
| CN209265255U (en) | A kind of pumping plant central control desk | |
| CN220230651U (en) | Radar type water level gauge with ship data filtering function | |
| CN211121522U (en) | Magnetic turning plate liquid level meter | |
| CN211698209U (en) | Surveying and mapping monitoring integrated machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |