CN108333580A - A kind of multichannel magnetic strength high-speed target detector - Google Patents
A kind of multichannel magnetic strength high-speed target detector Download PDFInfo
- Publication number
- CN108333580A CN108333580A CN201810189408.6A CN201810189408A CN108333580A CN 108333580 A CN108333580 A CN 108333580A CN 201810189408 A CN201810189408 A CN 201810189408A CN 108333580 A CN108333580 A CN 108333580A
- Authority
- CN
- China
- Prior art keywords
- data
- module
- speed
- magnetic strength
- signal
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/04—Systems determining presence of a target
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The present invention relates to a kind of multichannel magnetic strength high-speed target detectors, belong to high-speed target field of detecting.The present invention includes Signal-regulated kinase, signal acquisition module, data processing module, power management module, core bus module.The present invention is based on GMI giant magnetoresistance effects to realize for the contactless detection of multiple magnetic strength detection sensing unit voltage output variations caused by multiple high-speed iron magnetic movement targets, data multidimensional degree calculation method based on programmable logic device FPGA solves the problems, such as the criterion of high-speed moving object characteristic, and the high rate bioreactor of multi-channel data is realized using staggeredly biplane programming technique.The present invention also has the following advantages that：It is small, low in energy consumption；Good environmental adaptability, can long time stability work within the scope of round-the-clock total temperature；Simple in structure, easy for installation, good economy performance, later maintenance are easy.
Description
Technical field
The present invention relates to a kind of multichannel magnetic strength high-speed target detectors, belong to high-speed target field of detecting.
Background technology
Target acquisition is the main path of acquisition of information, and what the acquisition of information was mainly realized by detector.Target
Information includes mainly the data informations such as position coordinates, distance, the azimuth of target, and detection system is according to different target informations
The sensor of selection is also different, the Detecting System that currently used sensor uses mainly have radio, laser, it is infrared,
Magnetic harmony etc..Magnetic detection system has anti-electronic jamming capability strong, the advantage that measurement result is not influenced by adverse circumstances such as rain, mists
And be widely used, meanwhile, for high-speed iron magnetic movement target, magnetic detection as a kind of passive type detection measurement method also
The advantages of being not easy to be found (i.e. stealthy), this is also another reason being widely used.
Magnetic spy survey technology is that research physical detecting technology related with magnetic phenomenon is surveyed by contactless detection method
The magnetic field of the fixed or mobile target of amount, and related objective information physical amount is transformed by parameter is detected by information processing.It is based on
Magnetic spy survey technology realizes the real-time processing for putting forth effort high-speed iron magnetic movement target acquisition to realize magnetic detection process, is ferromagnetism
The accurately detecting identification of moving target provides strong theory and application support, and there is important practical engineering application to be worth.
Invention content
A kind of multichannel magnetic strength high-speed target detector technical problems to be solved disclosed by the invention are：For multiple high
Multiple magnetic strength detection sensing unit output variations, real by high-speed digital video camera technology caused by fast ferromagnetism moving target
Real-time detection, identification, storage and processing now are carried out to it, had the following advantages that：(1) using based on programmable logic device
The data multidimensional degree calculation method of FPGA solves the problems, such as the criterion of high-speed moving object characteristic；(2) application staggeredly biplane programming
Technology realizes the high rate bioreactor of multi-channel data；(3) small, low in energy consumption；Good environmental adaptability, can round-the-clock total temperature
Long time stability works in range；(4) simple in structure, easy for installation, good economy performance, later maintenance are easy.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of multichannel magnetic strength high-speed target detector disclosed by the invention, including Signal-regulated kinase, signal acquisition mould
Block, data processing module, power management module, core bus module.
High-speed iron magnetic movement target causes the detection sensing unit output voltage hair of the magnetic strength based on GMI giant magnetoresistance effects
Raw change detection, output voltage signal is weak voltage signals, and amplitude and variation range are mV grades of signals, driving capability
Weaker, the output voltage signal is the input voltage signal of multichannel magnetic strength high-speed target detector.Multichannel magnetic strength is high
Fast target detector configures n detection channels, and the output voltage signal of magnetic strength detection sensing unit initially enters multichannel magnetic strength
High-speed target detector internal signal conditioning module.Signal-regulated kinase is all channels for input voltage signal Variation Features
Configure instrument amplification module, potential-divider network module, high-order anti-aliasing filter module and second order Infinite gain low-pass filtering module.It is more
Channel magnetic strength high-speed target detector input voltage signal is by the amplification of Signal-regulated kinase instrument, partial pressure, the anti-aliasing filter of high-order
Multichannel magnetic strength high-speed target detector signal acquisition module is entered by internal bus interface after wave and low-pass filtering.
Signal acquisition module includes that A/D analog-to-digital conversion modules, main control unit, NANDFLASH storage units and inside are total
Line interface.Signal acquisition module receives the n-channel input signal from Signal-regulated kinase by internal bus interface.N-channel
Input signal initially enters A/D analog-to-digital conversion modules；A/D analog-to-digital conversion modules are controlled by main control unit to realize that n-channel is defeated
Enter signal timesharing analog/digital signal conversion function；Transformed n-channel digital signal is compiled under main control unit effect
Frame is packaged and data distribution：On the one hand, data enter NANDFLASH storage units；On the other hand, data enter internal bus and connect
Mouth is exported to data processing module.The voltage signal changed caused by high-speed iron magnetic movement target is high-frequency signal, single
Channel sample rate and total sampling rate are higher, and the data volume that the unit interval generates is huge, and sea will be generated for set time length
Amount data needs are handled in real time, and by main control unit application, staggeredly NANDFLASH is deposited in the realization of biplane programmed method
The high rate bioreactor of storage unit multi-channel data.
Preferably, signal acquisition module uses application staggeredly biplane programmed method realization pair by main control unit
The high rate bioreactor of NANDFLASH storage unit multi-channel datas.
Staggeredly biplane programming establish NANDflash memories space constitute in such a way that plane is interlocked in multiple pages
Write-in and programming operation is unfolded on face simultaneously.Using K9WBG08U1M, capacity 4Gbytes, by the memory structure of two panels 2Gbytes
At space includes n plane, page capacity 4Kbytes, crystal oscillator frequency 60MHz, 1/2 frequency dividing, using staggeredly biplane programmed method
Comprise the concrete steps that：
Step 1：Utilize page 1 of biplane programming technique pair the 1st and the 2nd plane of the 1st 2Gbytes memory
4Kbytes is written into line command and data order respectively；
Step 2：Utilize page 1 of biplane programming technique pair the 1st and the 2nd plane of the 2nd 2Gbytes memory
4Kbytes is written into line command and data respectively；
Step 3：The N-free diet method time between step 1 and the two panels 2Gbytes storage operations of step 2；
Step 4：About 50 μ s are waited for after step 2, repeat step 1 to 4.
Step 5：Staggeredly biplane programming terminates.
Above-mentioned steps 1 to 4 show as repeatedly recycling in practical applications, and the 50 μ s stand-by period occurred in step 4 correspond to
The page programming time of the 4Kbytes of page 1 of the 2nd plane of the 2nd 2Gbytes memory in step 2.Page 4 are written in single cycle
Total 16Kbytes data volumes, but the whole stand-by period there was only 50 μ s.In 1/2 frequency dividing of 60MHz, using staggeredly biplane
The single cycle of the programming writing speed that is averaged reaches 27.437Mbytes/s, is much higher by normal mode
The speed of 13.5Mbytes/s disclosure satisfy that the high rate bioreactor of NANDFLASH storage unit multi-channel datas is wanted in realization
It asks.
Data processing module receives the number packed by compiling frame from signal acquisition module by internal bus interface
Word amount data packet.When close to magnetic strength detector sensing unit, motion feature is reacted in voltage high-speed iron magnetic movement target
It is in the positive exponential function curve risen in signal output.Accurately to carry out high-speed target detection and identification, data processing mould
Block central data processing unit carries out multi-channel data parsing to the data packet that receives first, for sampling rate for each channel height with
And the feature that total sampling unit interval data volume is abundant, based on data multidimensional degree Processing Algorithm accurately carry out high-speed target detection and
Identification realizes the high speed processing to n-channel data, the movement of real-time resolving high-speed iron magnetic movement target by pile line operation
Slope of curve list and high-speed iron magnetic movement target curve movement quadratic slope, resolving slope is packaged together with initial data to be deposited
Storage and upload provide reliable accurate basis for estimation for the further decision of detector peripheral equipment, and the slope of curve adds
Speed, curve quadratic slope, that is, acceleration.There is information exchange function between detector and peripheral equipment.The periphery is set
Standby includes host computer.
Preferably, accurately carrying out high-speed target detection and knowledge based on data multidimensional degree Processing Algorithm in data processing module
It Shi Xian steps are as follows：
Step (1)：Data processing module central data processing unit carries out multichannel number to the data packet received first
According to parsing；
Step (2)：Central data processing unit generates Fixed Time Interval and handles clock as multi-dimensional data；
Step (3)：It establishes n process respectively to pre-process n channel data, single-channel data is according to certain sequence
Into pretreatment buffer；
Step (4)：When each pretreatment buffer address difference is more than 1, then instantaneous acceleration calculating is carried out：
K1=Data2-Data1
Step (5)：Single channel K1 respectively enters secondary pretreatment buffer；
Step (6)：Step (4) to (5) is repeated, when secondary pretreatment buffer address difference is more than 1, carries out instantaneous plus accelerates
Degree calculates：
T1=K2-K1
Step (7)：It is sub-category to data subchannel sequentially in time to carry out being packaged volume frame, unified storage and upload, be
The further decision of detector peripheral equipment provides reliable accurate basis for estimation.
Preferably, between detector and peripheral equipment there is information exchange function preferably to use USB interface communication mode,
Detector data processing module receives the instruction issued from host computer, and feedback information or upload data by USB interface, far
Journey communication interface has short-circuit protection function.
Power management module provides power supply and distribution source for n-channel magnetic strength high-speed target detector.External ac power source is input to
The linear power supply module of power management module completes power of alterating and direct current conversion；Transformed DC voltage enters voltage regulation filtering mould
Block carries out supply voltage filtering and voltage stabilizing；Supply voltage after filtering voltage regulation is directly low temperature by Intelligent lithium battery charging chip
Lithium battery group charges.
Preferably, low temperature lithium battery group includes two pieces of chargeable low temperature lithium batteries, battery capacity is not less than 2000mAh,
Discharge current is not less than 0.5C, and charging current programming is adjustable；Low temperature lithium battery group output voltage is more by internal bus interface
Magnetic strength high-speed target detector all comprising modules in channel carry out power supply and distribution.
Core bus module is for completing Signal-regulated kinase, signal acquisition mould in multichannel magnetic strength high-speed target detector
Communication interconnection between block, data processing module and power management module.
Described n detection channels of configuration according to multichannel magnetic strength high-speed target detector detectivity and use demand and
It is fixed.Preferably, described n detection channels quantity of configuration preferably 8.
Advantageous effect：
1, a kind of multichannel magnetic strength high-speed target detector disclosed by the invention realizes needle based on GMI giant magnetoresistance effects
Contactless detection is changed to multiple magnetic strength detection sensing unit outputs caused by multiple high-speed iron magnetic movement targets, is compared
For currently used such as radio, laser, infrared, acoustic detection system, anti-electronic jamming capability is strong, measurement result not by
The adverse circumstances such as rain, mist influence, meanwhile, for high-speed iron magnetic movement target, magnetic detection is surveyed as a kind of detection of passive type
Amount method also has the advantages of being not easy to be found (i.e. stealthy).
2, the voltage signal changed caused by high-speed iron magnetic movement target be high-frequency signal, sampling rate for each channel and
Total sampling rate is higher, the unit interval generate data volume it is huge, for set time length will generate mass data need into
Row processing in real time.A kind of multichannel magnetic strength high-speed target detector disclosed by the invention is staggeredly flat by main control unit application
Face programmed method realizes the high rate bioreactor to NANDFLASH storage unit multi-channel datas.
3, the abundant feature of sampling unit interval data volume for sampling rate for each channel height and always, disclosed by the invention one
Kind multichannel magnetic strength high-speed target detector, is based on data multidimensional degree Processing Algorithm, by pile line operation, realizes to n-channel
The high speed processing of data, the magnetic movement target curve movement slope list of real-time resolving high-speed iron and high-speed iron magnetic movement target
Curve movement quadratic slope resolves slope and is packaged storage together with initial data and uploads, is that detector peripheral equipment is further
Decision provides reliable accurate basis for estimation, that is, utilizes the data multidimensional degree calculation method solution based on programmable logic device FPGA
The certainly criterion problem of high-speed moving object characteristic
Description of the drawings
Fig. 1 multichannel magnetic strength high-speed target detector systems form；
Fig. 2 Signal-regulated kinase functional block diagrams；
Fig. 3 signal acquisition module functional block diagrams；
Fig. 4 data processing module functional block diagrams；
Fig. 5 power management module functional block diagrams.
Specific implementation mode
In order to better illustrate objects and advantages of the present invention, invention content is done further with example below in conjunction with the accompanying drawings
Explanation.
Embodiment 1：
The present embodiment is carried out with following technical indicators to be designed, and illustrates objects and advantages of the present invention.
A) high-speed iron magnetic movement target velocity range：0-1500m/s；
B) number of channels：8；
B) word length is encoded：16bit；
C) sampling rate for each channel：≮300Kbps
E) frequency response：DC-30KHz；
A kind of multichannel magnetic strength high-speed target detector disclosed in the present embodiment includes Signal-regulated kinase, signal acquisition mould
Block, data processing module, power management module, core bus module.
High-speed iron magnetic movement target causes the detection sensing unit output voltage hair of the magnetic strength based on GMI giant magnetoresistance effects
Changing is weak voltage signals, frequency response bandwidth up to 30KHz in 0-100mV.Multichannel magnetic strength high-speed target is visited
It surveys device and configures 8 detection channels, the output voltage signal of magnetic strength detection sensing unit initially enters multichannel magnetic strength high-speed target
Detector internal signal conditioning module.Signal-regulated kinase is that all channels configure instrument amplification for input voltage Variation Features
Module, potential-divider network module, high-order anti-aliasing filter module and second order Infinite gain low-pass filtering module.Wherein, instrument is put
Big module amplification factor is 30 times, and 0.125V reference voltages are arranged；Potential-divider network to amplified voltage carry out equal proportion with
With to enhance its driving capability；In order to eliminate the aliasing in signal acquisition module high frequency sampling process, signal conditioning circuit
Signal filtering is carried out using the anti-aliasing low-pass filtering module of LTC1569 high-order elliptics；In order to eliminate high-order anti-aliasing filter mould
The switching noise that block is brought, signal conditioning circuit carry out switching noise elimination using second order Infinite gain low-pass filtering module.It is defeated
Enter signal and finally generate 8 road 0-5V analog signals by Signal-regulated kinase, signal after conditioning by internal bus interface into
Enter multichannel magnetic strength high-speed target detector signal acquisition module.
Signal acquisition module receives the multichannel input signal from Signal-regulated kinase by internal bus interface.It is mostly logical
Road input signal initially enters A/D analog-to-digital conversion modules；A/D analog-to-digital conversion modules use 16 AD7667 core conversion chips,
And it is controlled by main control unit to realize multichannel input signal timesharing analog/digital signal conversion function；It is transformed mostly logical
Road digital signal carries out compiling frame packing and data distribution under main control unit effect：On the one hand, data enter NANDFLASH and deposit
Storage unit；On the other hand, data enter internal bus interface and export to data processing module.Due to high-speed iron magnetic movement target
The voltage signal of caused variation is high-frequency signal, sampling rate for each channel 1200KBps, 40 times of over-samplings, to total sampling rate
Have：
fs=8 × 1200KBps=9.6Mbit/s=19.2MB/s
Total sampling rate height directly brings the data volume of unit interval generation huge as a result, will be produced for set time length
Raw mass data needs are handled in real time, to which the present embodiment is by main control unit using the biplane programming technique that interlocks
Realize the high rate bioreactor to NANDFLASH storage unit multi-channel datas.
It is most fast up to 40Mbytes/ that memory manufacturer used in NANDFLASH storage units provides writing speed
S, and actual average writing speed will be less than this index.There are two reasons：First, being realized using programmable logic device to depositing
The control of reservoir includes numerous instructions, and instruction execution needs the time；Second is that the write-in of NANDFLASH memory datas is single with page
Position carries out, and writes one page every time and needs page programming time, usually 200 μ s-700 μ s are differed.So as to assume such situation,
Do not consider that shared time, data is instructed endlessly to flow to memory and without fifo inside CPU, page capacity is
4Kbytes, peak velocity 40Mbytes/s, 200 μ s of programming time have maximum data to be averaged writing speed Vp：
The computational methods that above formula provides still include some it is assumed that still result of calculation is deposited close to NANDFLASH
The truth of reservoir normal mode write-in programming, is suitable for the average data writing speed system low compared with 13.5Mbytes/s.
When single channel sample frequency is very high, unit interval write-in data volume is even larger than in the case that multichannel samples simultaneously
13.5Mbytes/s, the high rate bioreactor for the biplane programming technique realization multi-channel data that interlocked using application.
Staggeredly biplane programming establish NANDflash memories space constitute in such a way that plane is interlocked in multiple pages
Write-in and programming operation is unfolded on face simultaneously.The present embodiment uses K9WBG08U1M, capacity 4Gbytes, by two panels 2Gbytes's
Memory is constituted, and space includes 8 planes, page capacity 4Kbytes, crystal oscillator frequency 60MHz, 1/2 frequency dividing, using staggeredly biplane
Programming comprises the concrete steps that：Using comprising the concrete steps that for staggeredly biplane programmed method：
Step 1：Utilize page 1 of biplane programming technique pair the 1st and the 2nd plane of the 1st 2Gbytes memory
4Kbytes is written into line command and data order respectively；
Step 2：Utilize page 1 of biplane programming technique pair the 1st and the 2nd plane of the 2nd 2Gbytes memory
4Kbytes is written into line command and data respectively；
Step 3：The N-free diet method time between step 1 and the two panels 2Gbytes storage operations of step 2；
Step 4：About 50 μ s are waited for after step 2, repeat step 1 to 4.
Step 5：Staggeredly biplane programming terminates.
Above-mentioned steps 1 to 4 show as repeatedly recycling in practical applications, and the 50 μ s stand-by period occurred in step 4 correspond to
The page programming time of the 4Kbytes of page 1 of the 2nd plane of the 2nd 2Gbytes memory in step 2.Page 4 are written in single cycle
Total 16Kbytes data volumes, but the whole stand-by period there was only 50 μ s.In 1/2 frequency dividing of 60MHz, using staggeredly biplane
The single cycle of the programming writing speed that is averaged reaches 27.437Mbytes/s, is much higher by normal mode
The speed of 13.5Mbytes/s disclosure satisfy that the high rate bioreactor of NANDFLASH storage unit multi-channel datas is wanted in realization
It asks.
Data processing module receives the number packed by compiling frame from signal acquisition module by internal bus interface
Word amount data packet.When close to magnetic strength detector sensing unit, motion feature is reacted in telecommunications high-speed iron magnetic movement target
It is to carry out high-speed target detection and identification, data processing module in the positive exponential function curve risen to be accurate in number output
Central data processing unit carries out multi-channel data parsing to the data packet that receives first, for sampling rate for each channel it is high and
The abundant feature of total sampling unit interval data volume, the present invention propose a kind of data multidimensional degree Processing Algorithm, are grasped by assembly line
Make, realizes the high speed processing to 8 channel datas, real-time resolving high-speed iron magnetic movement target curve movement slope (acceleration) row
Table and high-speed iron magnetic movement target curve movement quadratic slope (acceleration), resolving slope is packaged together with initial data to be deposited
Storage and upload provide reliable accurate basis for estimation for the further decision of detector peripheral equipment.
What data multidimensional degree Processing Algorithm described in the present embodiment was implemented comprises the concrete steps that：
Step (1)：Data processing module central data processing unit carries out multichannel number to the data packet received first
According to parsing；
Step (2)：Central data processing unit generates Fixed Time Interval and handles clock as multi-dimensional data；
Step (3)：It establishes 8 processes respectively to pre-process 8 channel datas, single-channel data is according to certain sequence
Into pretreatment buffer；
Step (4)：When each pretreatment buffer address difference is more than 1, then instantaneous acceleration calculating is carried out：
K1=Data2-Data1
Step (5)：Single channel K1 respectively enters secondary pretreatment buffer；
Step (6)：Step (4) to (5) is repeated, when secondary pretreatment buffer address difference is more than 1, carries out instantaneous plus accelerates
Degree calculates：
T1=K2-K1
Step (7)：It is sub-category to data subchannel sequentially in time to carry out being packaged volume frame, unified storage and upload, be
The further decision of detector peripheral equipment provides reliable accurate basis for estimation.
Preferably, the information exchange between detector and peripheral equipment (host computer) uses usb communication mode, detector
The instruction issued from host computer is received by USB interface, and feedback information or upload data, remote communication interface have short circuit
Defencive function.
Power management module provides power supply and distribution source for multichannel magnetic strength high-speed target detector.External 220V AC powers are defeated
Enter to the linear power supply module of power management module, completes power of alterating and direct current conversion；Transformed DC voltage enters voltage stabilizing filter
Wave module carries out supply voltage filtering and voltage stabilizing；Supply voltage after filtering voltage regulation is directly by Intelligent lithium battery charging chip
Low temperature lithium battery group charges, wherein low temperature lithium battery group includes two pieces of chargeable low temperature lithium batteries, and battery capacity is not less than
2000mAh, discharge current are not less than 0.5C, and charging current programming is adjustable；Low temperature lithium battery group output voltage passes through internal bus
Interface is that all comprising modules of multichannel magnetic strength high-speed target detector carry out power supply and distribution.
Core bus functions of modules is simple, is mainly used to complete signal condition in multichannel magnetic strength high-speed target detector
Communication interconnection between module, signal acquisition module, data processing module and power management module.
Above-described specific descriptions have carried out further specifically the purpose, technical solution and advantageous effect of invention
It is bright, it should be understood that the above is only a specific embodiment of the present invention, the protection model being not intended to limit the present invention
It encloses, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection domain within.
Claims (6)
1. a kind of multichannel magnetic strength high-speed target detector, it is characterised in that：Including Signal-regulated kinase, signal acquisition module,
Data processing module, power management module, core bus module；
High-speed iron magnetic movement target causes the detection sensing unit output voltage of the magnetic strength based on GMI giant magnetoresistance effects to become
Change detection, output voltage signal is weak voltage signals, and amplitude and variation range are mV grades of signals, driving capability compared with
Weak, the output voltage signal is the input voltage signal of multichannel magnetic strength high-speed target detector；Multichannel magnetic strength high speed
Target detector configures n detection channels, and the output voltage signal of magnetic strength detection sensing unit initially enters multichannel magnetic strength height
Fast target detector internal signal conditioning module；Signal-regulated kinase is that all channels are matched for input voltage signal Variation Features
Set instrument amplification module, potential-divider network module, high-order anti-aliasing filter module and second order Infinite gain low-pass filtering module；It is mostly logical
Road magnetic strength high-speed target detector input voltage signal is by the amplification of Signal-regulated kinase instrument, partial pressure, high-order anti-aliasing filter
And multichannel magnetic strength high-speed target detector signal acquisition module is entered by internal bus interface after low-pass filtering；
Signal acquisition module includes that A/D analog-to-digital conversion modules, main control unit, NANDFLASH storage units and internal bus connect
Mouthful；Signal acquisition module receives the n-channel input signal from Signal-regulated kinase by internal bus interface；N-channel inputs
Signal initially enters A/D analog-to-digital conversion modules；A/D analog-to-digital conversion modules are controlled by main control unit to realize n-channel input letter
Number timesharing analog/digital signal conversion function；Transformed n-channel digital signal carries out volume frame under main control unit effect and beats
Packet and data distribution：On the one hand, data enter NANDFLASH storage units；On the other hand, it is defeated to enter internal bus interface for data
Go out to data processing module；The voltage signal changed caused by high-speed iron magnetic movement target is high-frequency signal, single channel
Sample rate and total sampling rate are higher, and the data volume that the unit interval generates is huge, and magnanimity number will be generated for set time length
According to needing to be handled in real time, by main control unit application, staggeredly the realization of biplane programmed method is single to NANDFLASH storages
The high rate bioreactor of first multi-channel data；
Data processing module receives the digital quantity packed by compiling frame from signal acquisition module by internal bus interface
Data packet；When close to magnetic strength detector sensing unit, motion feature is reacted in voltage signal high-speed iron magnetic movement target
It is in the positive exponential function curve risen in output；Accurately to carry out high-speed target detection and identification, in data processing module
Centre data processing unit carries out multi-channel data parsing to the data packet received first, high and total for sampling rate for each channel
The abundant feature of unit interval data volume is sampled, high-speed target detection and knowledge are accurately carried out based on data multidimensional degree Processing Algorithm
Not, by pile line operation, realize that the high speed processing to n-channel data, the movement of real-time resolving high-speed iron magnetic movement target are bent
Line slope list and high-speed iron magnetic movement target curve movement quadratic slope resolve slope and are packaged storage together with initial data
And upload, reliable accurate basis for estimation is provided for the further decision of detector peripheral equipment, the slope of curve accelerates
Degree, curve quadratic slope, that is, acceleration；There is information exchange function between detector and peripheral equipment；The peripheral equipment
Including host computer；
Power management module provides power supply and distribution source for n-channel magnetic strength high-speed target detector；External ac power source is input to power supply
The linear power supply module of management module completes power of alterating and direct current conversion；Transformed DC voltage enter regulating filtering module into
Row supply voltage filters and voltage stabilizing；Supply voltage after filtering voltage regulation is directly low temperature lithium electricity by Intelligent lithium battery charging chip
Pond group charges；
Core bus module for complete Signal-regulated kinase in multichannel magnetic strength high-speed target detector, signal acquisition module,
Communication interconnection between data processing module and power management module.
2. a kind of multichannel magnetic strength high-speed target detector as described in claim 1, it is characterised in that：Signal acquisition module is logical
It crosses main control unit and uses application staggeredly high speed of the biplane programmed method realization to NANDFLASH storage unit multi-channel datas
Processing in real time；
Staggeredly biplane programming establish NANDflash memories space constitute in such a way that plane is interlocked on multiple pages
Write-in and programming operation are unfolded simultaneously；It is made of the memory of two panels 2Gbytes using K9WBG08U1M, capacity 4Gbytes,
Space includes n plane, page capacity 4Kbytes, crystal oscillator frequency 60MHz, 1/2 frequency dividing, using staggeredly biplane programmed method
It comprises the concrete steps that：
Step 1：Utilize page 1 of biplane programming technique pair the 1st and the 2nd plane of the 1st 2Gbytes memory
4Kbytes is written into line command and data order respectively；
Step 2：Utilize page 1 of biplane programming technique pair the 1st and the 2nd plane of the 2nd 2Gbytes memory
4Kbytes is written into line command and data respectively；
Step 3：The N-free diet method time between step 1 and the two panels 2Gbytes storage operations of step 2；
Step 4：About 50 μ s are waited for after step 2, repeat step 1 to 4；
Step 5：Staggeredly biplane programming terminates；
Above-mentioned steps 1 to 4 show as repeatedly recycling in practical applications, and the 50 μ s stand-by period occurred in step 4 correspond to step 2
In the 2nd plane of the 2nd 2Gbytes memory the 4Kbytes of page 1 page programming time；Page 4 are written altogether in single cycle
16Kbytes data volumes, but the whole stand-by period there was only 50 μ s；In 1/2 frequency dividing of 60MHz, compiled using staggeredly biplane
The single cycle of the journey writing speed that is averaged reaches 27.437Mbytes/s, is much higher by 13.5Mbytes/s in normal mode
Speed, disclosure satisfy that and realize high rate bioreactor requirement to NANDFLASH storage unit multi-channel datas.
3. a kind of multichannel magnetic strength high-speed target detector as claimed in claim 1 or 2, it is characterised in that：Data processing mould
High-speed target detection is accurately carried out based on data multidimensional degree Processing Algorithm in block and identification realizes that steps are as follows：
Step (1)：Data processing module central data processing unit carries out multi-channel data solution to the data packet received first
Analysis；
Step (2)：Central data processing unit generates Fixed Time Interval and handles clock as multi-dimensional data；
Step (3)：It establishes n process respectively to pre-process n channel data, single-channel data enters according to certain sequence
Pre-process buffer；
Step (4)：When each pretreatment buffer address difference is more than 1, then instantaneous acceleration calculating is carried out：
K1=Data2-Data1
Step (5)：Single channel K1 respectively enters secondary pretreatment buffer；
Step (6)：Step (4) to (5) is repeated, when secondary pretreatment buffer address difference is more than 1, carries out instantaneous polarty meter
It calculates：
T1=K2-K1
Step (7)：It is sub-category to data subchannel sequentially in time to carry out being packaged volume frame, unified storage and upload, for detection
The further decision of device peripheral equipment provides reliable accurate basis for estimation.
4. a kind of multichannel magnetic strength high-speed target detector as claimed in claim 3, it is characterised in that：Detector is set with periphery
There is information exchange function to use USB interface communication mode between standby, detector data processing module by USB interface reception come
The instruction issued from host computer, and feedback information or upload data, remote communication interface have short-circuit protection function.
5. a kind of multichannel magnetic strength high-speed target detector as claimed in claim 3, it is characterised in that：Low temperature lithium battery group packet
Containing two pieces of chargeable low temperature lithium batteries, battery capacity is not less than 2000mAh, and discharge current is not less than 0.5C, charging current programming
It is adjustable；Low temperature lithium battery group output voltage is all composition moulds of multichannel magnetic strength high-speed target detector by internal bus interface
Block carries out power supply and distribution.
6. a kind of multichannel magnetic strength high-speed target detector as claimed in claim 3, it is characterised in that：Configuration n
Detection channels are depending on multichannel magnetic strength high-speed target detector detectivity and use demand；Described n detection of configuration
Number of channels selects 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189408.6A CN108333580B (en) | 2018-03-06 | 2018-03-06 | A kind of multichannel magnetic strength high-speed target detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189408.6A CN108333580B (en) | 2018-03-06 | 2018-03-06 | A kind of multichannel magnetic strength high-speed target detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108333580A true CN108333580A (en) | 2018-07-27 |
| CN108333580B CN108333580B (en) | 2019-07-23 |
Family
ID=62929038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810189408.6A Expired - Fee Related CN108333580B (en) | 2018-03-06 | 2018-03-06 | A kind of multichannel magnetic strength high-speed target detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108333580B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5880682A (en) * | 1997-12-18 | 1999-03-09 | Midian Electronics, Inc. | Traffic control system and method of operation |
| DE10216760A1 (en) * | 2002-04-12 | 2003-10-23 | Ernst Bremicker Gmbh & Co Kg | Vehicle detection device for detecting a vehicle within a capture zone and controlling a traffic control device accordingly, whereby a passive magnetic sensor, e.g. a GMR, is mounted to the side of a vehicle passage |
| US7688072B1 (en) * | 2007-09-18 | 2010-03-30 | The United States Of America As Represented By The Secretary Of The Navy | Portable magnetic sensing system for real-time, point-by-point detection, localization and classification of magnetic objects |
| CN101807214A (en) * | 2010-03-22 | 2010-08-18 | 湖南亿能电子科技有限公司 | High-speed signal acquisition, storage and playback device based on FPGA |
| CN102621582A (en) * | 2012-03-27 | 2012-08-01 | 淄博威特电气有限公司 | Method for detecting positions of underground metal pipelines by aid of space vector method and device |
| CN103576101A (en) * | 2012-07-31 | 2014-02-12 | 北京嘉岳同乐极电子有限公司 | Multi-channel integrated type magnetic sensor |
| CN104062607A (en) * | 2013-07-05 | 2014-09-24 | 北京航空航天大学 | Full-tensor magnetic field gradiometer based on giant magnetic impedance effect |
| CN104835326A (en) * | 2015-04-24 | 2015-08-12 | 周欣 | Vehicle detector based on anisotropy magnetic resistance sensor array |
| CN105206063A (en) * | 2015-09-25 | 2015-12-30 | 北京理工大学 | Traffic information monitoring signal acquiring device based on GMI sensors and detecting method |
| CN107526048A (en) * | 2017-07-18 | 2017-12-29 | 天津大学 | A kind of magnetic conductivity electromagnetic chromatographic imaging system based on magnetoresistive transducer |
-
2018
- 2018-03-06 CN CN201810189408.6A patent/CN108333580B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5880682A (en) * | 1997-12-18 | 1999-03-09 | Midian Electronics, Inc. | Traffic control system and method of operation |
| DE10216760A1 (en) * | 2002-04-12 | 2003-10-23 | Ernst Bremicker Gmbh & Co Kg | Vehicle detection device for detecting a vehicle within a capture zone and controlling a traffic control device accordingly, whereby a passive magnetic sensor, e.g. a GMR, is mounted to the side of a vehicle passage |
| US7688072B1 (en) * | 2007-09-18 | 2010-03-30 | The United States Of America As Represented By The Secretary Of The Navy | Portable magnetic sensing system for real-time, point-by-point detection, localization and classification of magnetic objects |
| CN101807214A (en) * | 2010-03-22 | 2010-08-18 | 湖南亿能电子科技有限公司 | High-speed signal acquisition, storage and playback device based on FPGA |
| CN102621582A (en) * | 2012-03-27 | 2012-08-01 | 淄博威特电气有限公司 | Method for detecting positions of underground metal pipelines by aid of space vector method and device |
| CN103576101A (en) * | 2012-07-31 | 2014-02-12 | 北京嘉岳同乐极电子有限公司 | Multi-channel integrated type magnetic sensor |
| CN104062607A (en) * | 2013-07-05 | 2014-09-24 | 北京航空航天大学 | Full-tensor magnetic field gradiometer based on giant magnetic impedance effect |
| CN104835326A (en) * | 2015-04-24 | 2015-08-12 | 周欣 | Vehicle detector based on anisotropy magnetic resistance sensor array |
| CN105206063A (en) * | 2015-09-25 | 2015-12-30 | 北京理工大学 | Traffic information monitoring signal acquiring device based on GMI sensors and detecting method |
| CN107526048A (en) * | 2017-07-18 | 2017-12-29 | 天津大学 | A kind of magnetic conductivity electromagnetic chromatographic imaging system based on magnetoresistive transducer |
Non-Patent Citations (5)
| Title |
|---|
| CAIPENG WU, ET AL.: "A Design of Li ear AGMI Sensor and Its Application for Tank Target Detection", 《THE NINTH INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT & INSTRUMENTS》 * |
| F. E. ATALAY,ET AL.: "A Position Sensor Based on Magneto-Impedance Effect", 《PHYS. STAT. SOL.》 * |
| 侯卓 等,: "机械应变测量调理电路的设计及其滤波特性分析", 《火力与指挥控制》 * |
| 姚宗 等，: "基于 FPGA的多通道数模信号实时采编存储系统", 《计算机测量与控制》 * |
| 韩超: "基于巨磁阻抗效应的磁探测技术与应用研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108333580B (en) | 2019-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102445620B (en) | Transient power quality detection device and method for the same | |
| CN203673078U (en) | Earthquake signal acquisition device with parallel acquisition channels | |
| CN101539599A (en) | Digital lightning detection method and device thereof | |
| CN109580459A (en) | A kind of Flow cytometry data acquisition system | |
| CN108495263B (en) | Indoor positioning method based on generalized multi-core function | |
| CN106570227B (en) | A kind of electrode arrangement optimization method and device of ultra high density electrical method | |
| CN205748484U (en) | A kind of multichannel data acquisition system based on FPGA | |
| CN112782470A (en) | Method and system for improving metering precision of three-phase cost control intelligent electric meter based on MCU | |
| CN201378190Y (en) | Digital thunder and lightning detection device | |
| CN108333580B (en) | A kind of multichannel magnetic strength high-speed target detector | |
| CN105021221A (en) | Distributed multi-terminal concurrent data acquisition and analysis system | |
| CN110146855A (en) | Radar Intermittent AF panel thresholding calculation method and device | |
| CN209485938U (en) | A kind of Flow cytometry data acquisition system | |
| CN203811718U (en) | Intelligent diagnostic instrument of energy saving of special-line user | |
| CN106841826A (en) | Real-time electromagnetic environment on-line monitoring system and method based on multi-stage distributed network | |
| Wu et al. | Design and Development of Unmanned Surface Vehicle for Meteorological Monitoring. | |
| CN208239385U (en) | A kind of monitoring modular for searching the source of atmospheric pollution | |
| CN116340753A (en) | Energy monitoring method for distributed energy area considering non-electrical characteristic quantity | |
| CN203149042U (en) | Detector for automatic weather station | |
| CN209992067U (en) | Integrated intelligent vibration sensor | |
| CN109813348A (en) | A kind of distributed optical fiber sensing system and its control method | |
| CN207132865U (en) | A kind of Angle Measuring Equipment based on PSD position sensors | |
| CN103838957A (en) | Propylene polymerization production process radial basis optimum soft measurement instrument and method | |
| CN203720588U (en) | Signal acquisition device | |
| CN203894324U (en) | Phase difference detection device of fiber current transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 Termination date: 20200306 |