CN108303597A - A kind of method, terminal and system for drawing electromagnetic field intensity distribution map - Google Patents
A kind of method, terminal and system for drawing electromagnetic field intensity distribution map Download PDFInfo
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- CN108303597A CN108303597A CN201810039004.9A CN201810039004A CN108303597A CN 108303597 A CN108303597 A CN 108303597A CN 201810039004 A CN201810039004 A CN 201810039004A CN 108303597 A CN108303597 A CN 108303597A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0892—Details related to signal analysis or treatment; presenting results, e.g. displays; measuring specific signal features other than field strength, e.g. polarisation, field modes, phase, envelope, maximum value
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Abstract
The present invention relates to data processing field more particularly to a kind of method, terminal and systems for drawing electromagnetic field intensity distribution map.The present invention right over region to be measured by fixing the invariable camera of a physical location, so that location information of the voltage test device when the difference in region to be measured measures voltage value can be mapped in the same coordinate system, so as to by continuing the voltage value in non-contact communication space acquisition single-point, and voltage value is converted into corresponding electromagnetic field intensity angle value, it realizes and draws electromagnetic field intensity distribution map corresponding with entire non-contact communication space.
Description
Technical field
The present invention relates to data processing field more particularly to it is a kind of draw the method for electromagnetic field intensity distribution map, terminal and
System.
Background technology
In contactless communication process, in order to ensure that data can be transmitted effectively, testing contactless is needed
The radio-frequency electromagnetic field intensity that communication apparatus generates, and we can only use non-contact tag when testing electromagnetic field intensity at present
(PICC) and oscillograph tests the electromagnetic field intensity angle value of specified point, and can not intuitively find out and can be used for the entire of non-contact communication
The specific distribution situation of electromagnetic field intensity angle value in space.
Invention content
The technical problem to be solved by the present invention is to：How with non-contact communication space corresponding electromagnetic field intensity point is drawn
Butut.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
The present invention provides a kind of method for drawing electromagnetic field intensity distribution map, including：
S1, camera shoot preset region to be measured, obtain original image；The position of the camera immobilizes；
S2, when voltage test device is in preset region to be measured, camera shoots the region to be measured, is tested
Image；There are a labels for the upper surface of the voltage test device；
The label in S3, the mapping test image is marked to coordinate system corresponding with the original image
Coordinate；
S4, the voltage test device acquire voltage value corresponding with the label coordinate；It obtains and the voltage value pair
The electromagnetic field intensity angle value answered；
S5, the S2 to S4 is repeated, until the voltage test device outside the region to be measured, obtains the first coordinate set
It closes and the first intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
The present invention also provides it is a kind of draw electromagnetic field intensity distribution map terminal, including one or more first processors and
First memory, the first memory have program stored therein, and are configured to be held by one or more of first processors
Row following steps：
S1, triggering camera shoot preset region to be measured, obtain original image；The position of the camera is fixed not
Become；
S2, when voltage test device is in preset region to be measured, triggering camera shoots the region to be measured, obtains
Test image；There are a labels for the upper surface of the voltage test device；
The label in S3, the mapping test image is marked to coordinate system corresponding with the original image
Coordinate；
S4, the voltage test device acquire voltage value corresponding with the label coordinate；It obtains and the voltage value pair
The electromagnetic field intensity angle value answered；
S5, the S2 to S4 is repeated, until the voltage test device outside the region to be measured, obtains the first coordinate set
It closes and the first intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
The present invention separately provides a kind of system for drawing electromagnetic field intensity distribution map, including camera, voltage test device, number
According to harvester, fixing piece and terminal；
The camera and the data acquisition device are connect with the terminal respectively；
The camera is fixed by the fixing piece；
The data acquisition device is connect by coaxial cable with the voltage test device；
The voltage test device, for measuring voltage value；There are a labels for the upper surface of the voltage test device；
The camera obtains original image for shooting preset region to be measured；When the voltage test device is pre-
If region to be measured in when, shoot the region to be measured, obtain test image；
The data acquisition device, the voltage value for obtaining the voltage test device measurement are forwarded to the end
End；
The terminal includes that one or more second processors and second memory, the second memory are stored with journey
Sequence, and be configured to execute following steps by one or more of second processors：
S1, the test image that camera is sent is obtained, obtains current test image；
The label in S2, the mapping current test image is obtained to coordinate system corresponding with the original image
Mark coordinate；
S3, voltage value corresponding with the label coordinate is obtained from the data acquisition device, obtains the first voltage value；
S4, electromagnetic field intensity angle value corresponding with the first voltage value is obtained；
S5, the S1 to S4 is repeated, until the voltage test device outside the region to be measured, obtains the first coordinate set
It closes and the first intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
The beneficial effects of the present invention are：The present invention is constant not by fixing a physical location right over region to be measured
The camera of change so that location information of the voltage test device when the difference in region to be measured measures voltage value can be mapped in together
In one coordinate system, so as to be converted to pair by continuing the voltage value in non-contact communication space acquisition single-point, and by voltage value
The electromagnetic field intensity angle value answered is realized and draws electromagnetic field intensity distribution map corresponding with entire non-contact communication space.Work as electromagnetic field
When intensity value is less than predetermined threshold value, effective communication can not be carried out, therefore, is only acquired with the prior art single in non-contact communication space
The electromagnetic field intensity angle value of point is compared, and the present invention is convenient for the inactive area being visually observed that in non-contact communication space, is improved and is surveyed
Examination personnel test the efficiency of non-contact communication equipment validity, are targetedly debugged convenient for developer, improve debugging efficiency.
Description of the drawings
Fig. 1 is a kind of flow chart element of the specific implementation mode of method for drawing electromagnetic field intensity distribution map provided by the invention
Figure；
Fig. 2 is a kind of structural frames of the specific implementation mode of terminal for drawing electromagnetic field intensity distribution map provided by the invention
Figure；
Fig. 3 is a kind of structural frames of the specific implementation mode of system for drawing electromagnetic field intensity distribution map provided by the invention
Figure；
Fig. 4 is a kind of structure diagram of voltage test device provided by the invention；
Label declaration：
1, first processor；2, first memory；3, camera；4, voltage test device；5, data acquisition device；6, solid
Determine part；7, terminal.
Specific implementation mode
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
Fig. 1 to Fig. 3 is please referred to,
As shown in Figure 1, the present invention provides a kind of method for drawing electromagnetic field intensity distribution map, including：
S1, camera shoot preset region to be measured, obtain original image；The position of the camera immobilizes；
S2, when voltage test device is in preset region to be measured, camera shoots the region to be measured, is tested
Image；There are a labels for the upper surface of the voltage test device；
The label in S3, the mapping test image is marked to coordinate system corresponding with the original image
Coordinate；
S4, the voltage test device acquire voltage value corresponding with the label coordinate；It obtains and the voltage value pair
The electromagnetic field intensity angle value answered；
S5, the S2 to S4 is repeated, until the voltage test device outside the region to be measured, obtains the first coordinate set
It closes and the first intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
Further, further include：
Coordinate corresponding with the region to be measured in the original image is obtained, the second coordinate set is obtained；
The coordinate for obtaining and existing in second coordinate set, and be not present in first coordinate set, obtains third
Coordinate set；
According to the corresponding electromagnetic field intensity angle value of each coordinate in the preset interpolation algorithm calculating third coordinate set, obtain
To the second intensity set；
All elements in the third coordinate set are added to first coordinate set；
All elements in second intensity set are added to first intensity set.
Seen from the above description, by interpolation algorithm by the Supplementing Data of test leakage in detection process so that with it is non-contact logical
Interrogating the corresponding electromagnetic field intensity distribution map in space has integrality.
Further, the S6 is specially：
Pre-set color matching list；The color-match table includes the correspondence of color value and intensity value；
A label coordinate is obtained from first coordinate set, obtains current markers coordinate；
Intensity value corresponding with the current markers coordinate is obtained, current electromagnetic field intensity value is obtained；
Color value corresponding with the current electromagnetic field intensity value is obtained from the color-match table, obtains current color
Value；
Setting pixel corresponding with the current markers coordinate is the current color value.
Seen from the above description, different electromagnetic field intensity angle value is indicated by using different color values, tester can
Intuitively from the region for learning that electromagnetic field intensity is weaker in non-contact communication space in electromagnetic field intensity distribution map.
As shown in Fig. 2, the present invention also provides a kind of terminal for drawing electromagnetic field intensity distribution map, including one or more the
One processor 1 and first memory 2, the first memory 2 has program stored therein, and is configured to by one or more of
First processor 1 executes following steps：
S1, triggering camera shoot preset region to be measured, obtain original image；The position of the camera is fixed not
Become；
S2, when voltage test device is in preset region to be measured, triggering camera shoots the region to be measured, obtains
Test image；There are a labels for the upper surface of the voltage test device；
The label in S3, the mapping test image is marked to coordinate system corresponding with the original image
Coordinate；
S4, the voltage test device acquire voltage value corresponding with the label coordinate；It obtains and the voltage value pair
The electromagnetic field intensity angle value answered；
S5, the S2 to S4 is repeated, until the voltage test device outside the region to be measured, obtains the first coordinate set
It closes and the first intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
Further, further include：
Coordinate corresponding with the region to be measured in the original image is obtained, the second coordinate set is obtained；
The coordinate for obtaining and existing in second coordinate set, and be not present in first coordinate set, obtains third
Coordinate set；
According to the corresponding electromagnetic field intensity angle value of each coordinate in the preset interpolation algorithm calculating third coordinate set, obtain
To the second intensity set；
All elements in the third coordinate set are added to first coordinate set；
All elements in second intensity set are added to first intensity set.
Further, the S6 is specially：
Pre-set color matching list；The color-match table includes the correspondence of color value and electromagnetic field intensity angle value；
A label coordinate is obtained from first coordinate set, obtains current markers coordinate；
Electromagnetic field intensity angle value corresponding with the current markers coordinate is obtained, current electromagnetic field intensity value is obtained；
Color value corresponding with the current electromagnetic field intensity value is obtained from the color-match table, obtains current color
Value；
Setting pixel corresponding with the current markers coordinate is the current color value.
As shown in figure 3, the present invention separately provides a kind of system for drawing electromagnetic field intensity distribution map, including camera 3, voltage
Test device 4, data acquisition device 5, fixing piece 6 and terminal 7；
The camera 3 and the data acquisition device 5 are connect with the terminal 7 respectively；
The camera 3 is fixed by the fixing piece 6；
The data acquisition device 5 is connect by coaxial cable with the voltage test device 4；
The voltage test device 4, for measuring voltage value；There are a labels for the upper surface of the voltage test device；
The camera 3 obtains original image for shooting preset region to be measured；When the voltage test device exists
When in preset region to be measured, the region to be measured is shot, test image is obtained；
The data acquisition device 5, the voltage value for obtaining the voltage test device measurement are forwarded to the end
End；
The terminal 7 includes that one or more second processors and second memory, the second memory are stored with journey
Sequence, and be configured to execute following steps by one or more of second processors：
S1, the test image that camera is sent is obtained, obtains current test image；
The label in S2, the mapping current test image is obtained to coordinate system corresponding with the original image
Mark coordinate；
S3, voltage value corresponding with the label coordinate is obtained from the data acquisition device, obtains the first voltage value；
S4, electromagnetic field intensity angle value corresponding with the first voltage value is obtained；
S5, the S1 to S4 is repeated, until the voltage test device outside the region to be measured, obtains the first coordinate set
It closes and the first intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
Further, the voltage test device includes first coil, LC resonance circuit, rectification circuit and variable load electricity
Road；
The first coil is connect with one end of the LC resonance circuit；
The other end of the LC resonance circuit is connect with one end of the rectification circuit；
The other end of the rectification circuit is connect with one end of the variable load circuits.
Further, further include：
The first coil is made of the copper wire that 4 circle width are 0.5mm；The induction coefficient of the first coil is 3.9 μ H.
Seen from the above description, the setting of the parameter meets the requirement of non-contact IC card communications protocol specification.
10, the system according to claim 8 for drawing electromagnetic field intensity distribution map, which is characterized in that further include：
The LC resonance circuit is made of the second coil and two capacitances；The resonant frequency of second coil is
16.1MHz。
Seen from the above description, the setting of the parameter meets the requirement of non-contact IC card communications protocol specification.
Further, further include：
The rectification circuit is made of four diodes.
Further, further include：
The variable load circuits are made of fixed resistance and diode.
Further, the data acquisition device includes microcontroller, operational amplifier, USB turns serial port chip and SMA connects
Connect device；
The microcontroller turns serial port chip by the USB and is connect with the terminal；
The microcontroller is connected with one end of the operational amplifier；
The other end of the operational amplifier is connect with one end of the SMA connectors；
The other end of the SMA connectors is connect by coaxial cable with the voltage test device.
Further, further include：
The pixel of the camera is more than 5,000,000.
Seen from the above description, camera pixel is more than 5,000,000, can obtain more pixels, makes the intensity point of drafting
Butut is more accurate.
Further, the fixing piece includes supporting table and supporting rod；
The supporting rod is set in the supporting table；
The camera is set to one end of the supporting rod.
The embodiment of the present invention one is：
The present embodiment provides a kind of methods for drawing electromagnetic field intensity distribution map, including：
S1, camera shoot preset region to be measured, obtain original image；The position of the camera immobilizes.
S2, when voltage test device is in preset region to be measured, camera shoots the region to be measured, is tested
Image；There are a labels for the upper surface of the voltage test device.
Wherein, the test specification that existing financial smart card and POS machine tool follow is mainly EMVCo, is deposited in EMVCo definition
Concept in space checks whether measured value falls in prescribed requirement by the non-voltage value for connecing test label (PICC) and measuring
Interior, unit is V (volt).Because true electromagnetic field intensity angle value can not be tested directly, and electromagnetic field intensity angle value and the electricity that measures
It is pressed into direct ratio, therefore can reflect the electromagnetic field intensity in non-contact communication space by obtaining the voltage data measured.Only when
When electromagnetic field intensity in non-contact communication space is sufficiently large, non-contact communication area of the financial smart card specified by the POS machine
Its information can be read when domain.
The label in S3, the mapping test image is marked to coordinate system corresponding with the original image
Coordinate.
Wherein, since shooting original image to shooting test image is during this, the physical location of camera is protected always
It holds and immobilizes, it therefore, can be using original image as unified reference standard.By image processing techniques compare original image and
Test image calculates coordinate of the label in test image on voltage test device corresponding to original image, i.e., will current electricity
The voltage value that compression testing device measurement obtains is matched with the physical location in non-contact communication space.
S4, the voltage test device acquire voltage value corresponding with the label coordinate；It obtains and the voltage value pair
The electromagnetic field intensity angle value answered.
S5, the S2 to S4 is repeated, until the voltage test device outside the region to be measured, obtains the first coordinate set
It closes and the first intensity set；Element in first coordinate set and first intensity set corresponds.
S6, coordinate corresponding with the region to be measured in the original image is obtained, obtains the second coordinate set；
The coordinate for obtaining and existing in second coordinate set, and be not present in first coordinate set, obtains third
Coordinate set；
According to the corresponding electromagnetic field intensity angle value of each coordinate in the preset interpolation algorithm calculating third coordinate set, obtain
To the second intensity set；
All elements in the third coordinate set are added to first coordinate set；
All elements in second intensity set are added to first intensity set.
Wherein, the interpolation algorithm is two-dimensional linear interpolation algorithm, and the arithmetic speed of the algorithm is very fast, it is contemplated that waits counting
The correlation for calculating four direct adjoint points and the calculating point around point, keeps the data of acquisition more accurate.
S7, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set；Specifically
For：
Pre-set color matching list；The color-match table includes the correspondence of color value and intensity value；
A label coordinate is obtained from first coordinate set, obtains current markers coordinate；
Intensity value corresponding with the current markers coordinate is obtained, current electromagnetic field intensity value is obtained；
Color value corresponding with the current electromagnetic field intensity value is obtained from the color-match table, obtains current color
Value；
Setting pixel corresponding with the current markers coordinate is the current color value.
For example, electromagnetic field intensity angle value is bigger, color value is closer to red；Electromagnetic field intensity angle value is smaller, and color value is closer
Blue.
The embodiment of the present invention two is：
The present embodiment provides a kind of terminals for drawing electromagnetic field intensity distribution map, including one or more first processors 1
And first memory 2, the first memory 2 have program stored therein, and be configured to be handled by one or more of first
Device 1 executes following steps：
S1, camera shoot preset region to be measured, obtain original image；The position of the camera immobilizes.
S2, when voltage test device is in preset region to be measured, camera shoots the region to be measured, is tested
Image；There are a labels for the upper surface of the voltage test device.
The label in S3, the mapping test image is marked to coordinate system corresponding with the original image
Coordinate.
S4, the voltage test device acquire voltage value corresponding with the label coordinate；It obtains and the voltage value pair
The electromagnetic field intensity angle value answered.
S5, the S2 to S4 is repeated, until the voltage test device outside the region to be measured, obtains the first coordinate set
It closes and the first intensity set；Element in first coordinate set and first intensity set corresponds.
S6, coordinate corresponding with the region to be measured in the original image is obtained, obtains the second coordinate set；
The coordinate for obtaining and existing in second coordinate set, and be not present in first coordinate set, obtains third
Coordinate set；
According to the corresponding electromagnetic field intensity angle value of each coordinate in the preset interpolation algorithm calculating third coordinate set, obtain
To the second intensity set；
All elements in the third coordinate set are added to first coordinate set；
All elements in second intensity set are added to first intensity set.
S7, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set；Specifically
For：
Pre-set color matching list；The color-match table includes the correspondence of color value and intensity value；
A label coordinate is obtained from first coordinate set, obtains current markers coordinate；
Intensity value corresponding with the current markers coordinate is obtained, current electromagnetic field intensity value is obtained；
Color value corresponding with the current electromagnetic field intensity value is obtained from the color-match table, obtains current color
Value；
Setting pixel corresponding with the current markers coordinate is the current color value.
The embodiment of the present invention three is：
The present embodiment provides it is a kind of draw electromagnetic field intensity distribution map system, including camera 3, voltage test device 4,
Data acquisition device 5, fixing piece 6 and terminal 7；
The camera 3 and the data acquisition device 5 are connect with the terminal 7 respectively；The pixel of the camera is big
In 5,000,000；
The camera 3 is fixed by the fixing piece 6；The fixing piece includes supporting table and supporting rod；The support
Bar is set in the supporting table；The camera is set to one end of the supporting rod；
The data acquisition device 5 is connect by coaxial cable with the voltage test device 4；
The voltage test device 4, for measuring voltage value；There are a labels for the upper surface of the voltage test device；
The camera 3 obtains original image for shooting preset region to be measured；When the voltage test device exists
When in preset region to be measured, the region to be measured is shot, test image is obtained；
The data acquisition device 5, the voltage value for obtaining the voltage test device measurement are forwarded to the end
End；
Wherein, as shown in figure 4, the voltage test device 4 includes first coil, LC resonance circuit, rectification circuit and can
Variable-load circuit；
The first coil is connect with one end of the LC resonance circuit；The first coil is 0.5mm's by 4 circle width
Copper wire forms；The induction coefficient of the first coil is 3.9 μ H；The LC resonance circuit is by the second coil and two capacitance groups
At；The resonant frequency of second coil is 16.1MHz；
The other end of the LC resonance circuit is connect with one end of the rectification circuit；
The other end of the rectification circuit is connect with one end of the variable load circuits；The rectification circuit is by four two
Pole pipe forms；The variable load circuits are made of fixed resistance and diode.
Wherein, the data acquisition device 5 turns serial port chip and is connected with SMA including microcontroller, operational amplifier, USB
Device；
The microcontroller turns serial port chip by the USB and is connect with the terminal；
The microcontroller is connected with one end of the operational amplifier；
The other end of the operational amplifier is connect with one end of the SMA connectors；
The SMA connectors are the coaxial connector of small-sized threaded connection；
The other end of the SMA connectors is connect by coaxial cable with the voltage test device.
Wherein, the microcontroller turns serial port chip by the USB data is passed to the terminal；The microcontroller
The data that the operational amplifier obtains are handled.
Wherein, the terminal 7 includes one or more second processors and second memory, the second memory storage
There is program, and is configured to execute following steps by one or more of second processors：
S1, the test image that camera is sent is obtained, obtains current test image；
The label in S2, the mapping current test image is obtained to coordinate system corresponding with the original image
Mark coordinate；
S3, voltage value corresponding with the label coordinate is obtained from the data acquisition device, obtains the first voltage value；
S4, electromagnetic field intensity angle value corresponding with the first voltage value is obtained；
S5, the S1 to S4 is repeated, until the voltage test device outside the region to be measured, obtains the first coordinate set
It closes and the first intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
In conclusion it is provided by the invention it is a kind of draw electromagnetic field intensity distribution map method, terminal and system, by
The invariable camera of a physical location is fixed right over region to be measured so that voltage test device region to be measured not
Location information when same-point measurement voltage value can be mapped in the same coordinate system, so as to by continuing in non-contact communication space
The voltage value of single-point is acquired, and voltage value is converted into corresponding electromagnetic field intensity angle value, realizes and draws and entire non-contact communication
The corresponding electromagnetic field intensity distribution map in space.When electromagnetic field intensity angle value is less than predetermined threshold value, effective communication can not be carried out, because
This, compared with the prior art only acquires the electromagnetic field intensity angle value of single-point in non-contact communication space, the present invention is convenient for intuitively seeing
The inactive area in non-contact communication space is observed, improves the efficiency that tester tests non-contact communication equipment validity, just
It is targetedly debugged in developer, improves debugging efficiency.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, include similarly
In the scope of patent protection of the present invention.
Claims (15)
1. a kind of method for drawing electromagnetic field intensity distribution map, which is characterized in that including：
S1, camera shoot preset region to be measured, obtain original image；The position of the camera immobilizes；
S2, when voltage test device is in preset region to be measured, camera shoots the region to be measured, obtains test chart
Picture；There are a labels for the upper surface of the voltage test device；
The label in S3, the mapping test image obtains label coordinate to coordinate system corresponding with the original image；
S4, the voltage test device acquire voltage value corresponding with the label coordinate；It obtains corresponding with the voltage value
Electromagnetic field intensity angle value；
S5, repeat the S2 to S4, until the voltage test device is outside the region to be measured, obtain the first coordinate set and
First intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
2. the method according to claim 1 for drawing electromagnetic field intensity distribution map, which is characterized in that further include：
Coordinate corresponding with the region to be measured in the original image is obtained, the second coordinate set is obtained；
The coordinate for obtaining and existing in second coordinate set, and be not present in first coordinate set, obtains third coordinate
Set；
The corresponding electromagnetic field intensity angle value of each coordinate in the third coordinate set is calculated according to preset interpolation algorithm, obtains the
Two intensity sets；
All elements in the third coordinate set are added to first coordinate set；
All elements in second intensity set are added to first intensity set.
3. the method according to claim 1 for drawing electromagnetic field intensity distribution map, which is characterized in that the S6 is specially：
Pre-set color matching list；The color-match table includes the correspondence of color value and intensity value；
A label coordinate is obtained from first coordinate set, obtains current markers coordinate；
Intensity value corresponding with the current markers coordinate is obtained, current electromagnetic field intensity value is obtained；
Color value corresponding with the current electromagnetic field intensity value is obtained from the color-match table, obtains current color value；
Setting pixel corresponding with the current markers coordinate is the current color value.
4. a kind of terminal for drawing electromagnetic field intensity distribution map, which is characterized in that including one or more first processors and the
One memory, the first memory have program stored therein, and are configured to be executed by one or more of first processors
Following steps：
S1, triggering camera shoot preset region to be measured, obtain original image；The position of the camera immobilizes；
S2, when voltage test device is in preset region to be measured, triggering camera shoots the region to be measured, is tested
Image；There are a labels for the upper surface of the voltage test device；
The label in S3, the mapping test image obtains label coordinate to coordinate system corresponding with the original image；
S4, the voltage test device acquire voltage value corresponding with the label coordinate；It obtains corresponding with the voltage value
Electromagnetic field intensity angle value；
S5, repeat the S2 to S4, until the voltage test device is outside the region to be measured, obtain the first coordinate set and
First intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
5. the terminal according to claim 4 for drawing electromagnetic field intensity distribution map, which is characterized in that further include：
Coordinate corresponding with the region to be measured in the original image is obtained, the second coordinate set is obtained；
The coordinate for obtaining and existing in second coordinate set, and be not present in first coordinate set, obtains third coordinate
Set；
The corresponding electromagnetic field intensity angle value of each coordinate in the third coordinate set is calculated according to preset interpolation algorithm, obtains the
Two intensity sets；
All elements in the third coordinate set are added to first coordinate set；
All elements in second intensity set are added to first intensity set.
6. the terminal according to claim 4 for drawing electromagnetic field intensity distribution map, which is characterized in that the S6 is specially：
Pre-set color matching list；The color-match table includes the correspondence of color value and electromagnetic field intensity angle value；
A label coordinate is obtained from first coordinate set, obtains current markers coordinate；
Electromagnetic field intensity angle value corresponding with the current markers coordinate is obtained, current electromagnetic field intensity value is obtained；
Color value corresponding with the current electromagnetic field intensity value is obtained from the color-match table, obtains current color value；
Setting pixel corresponding with the current markers coordinate is the current color value.
7. a kind of system for drawing electromagnetic field intensity distribution map, which is characterized in that including camera, voltage test device, data
Harvester, fixing piece and terminal；
The camera and the data acquisition device are connect with the terminal respectively；
The camera is fixed by the fixing piece；
The data acquisition device is connect by coaxial cable with the voltage test device；
The voltage test device, for measuring voltage value；There are a labels for the upper surface of the voltage test device；
The camera obtains original image for shooting preset region to be measured；When the voltage test device is preset
When in region to be measured, the region to be measured is shot, test image is obtained；
The data acquisition device, the voltage value for obtaining the voltage test device measurement are forwarded to the terminal；
The terminal has program stored therein including one or more second processors and second memory, the second memory, and
And it is configured to execute following steps by one or more of second processors：
S1, the test image that camera is sent is obtained, obtains current test image；
The label in S2, the mapping current test image is marked to coordinate system corresponding with the original image
Coordinate；
S3, voltage value corresponding with the label coordinate is obtained from the data acquisition device, obtains the first voltage value；
S4, electromagnetic field intensity angle value corresponding with the first voltage value is obtained；
S5, repeat the S1 to S4, until the voltage test device is outside the region to be measured, obtain the first coordinate set and
First intensity set；Element in first coordinate set and first intensity set corresponds；
S6, electromagnetic field intensity distribution map is drawn according to first coordinate set and first intensity set.
8. the system according to claim 7 for drawing electromagnetic field intensity distribution map, which is characterized in that the voltage tester dress
It sets including first coil, LC resonance circuit, rectification circuit and variable load circuits；
The first coil is connect with one end of the LC resonance circuit；
The other end of the LC resonance circuit is connect with one end of the rectification circuit；
The other end of the rectification circuit is connect with one end of the variable load circuits.
9. the system according to claim 8 for drawing electromagnetic field intensity distribution map, which is characterized in that further include：
The first coil is made of the copper wire that 4 circle width are 0.5mm；The induction coefficient of the first coil is 3.9 μ H.
10. the system according to claim 8 for drawing electromagnetic field intensity distribution map, which is characterized in that further include：
The LC resonance circuit is made of the second coil and two capacitances；The resonant frequency of second coil is 16.1MHz.
11. the system according to claim 8 for drawing electromagnetic field intensity distribution map, which is characterized in that further include：
The rectification circuit is made of four diodes.
12. the system according to claim 8 for drawing electromagnetic field intensity distribution map, which is characterized in that further include：
The variable load circuits are made of fixed resistance and diode.
13. the system according to claim 7 for drawing electromagnetic field intensity distribution map, which is characterized in that the data acquisition
Device includes that microcontroller, operational amplifier, USB turn serial port chip and SMA connectors；
The microcontroller turns serial port chip by the USB and is connect with the terminal；
The microcontroller is connected with one end of the operational amplifier；
The other end of the operational amplifier is connect with one end of the SMA connectors；
The other end of the SMA connectors is connect by coaxial cable with the voltage test device.
14. the system according to claim 7 for drawing electromagnetic field intensity distribution map, which is characterized in that further include：
The pixel of the camera is more than 5,000,000.
15. the system according to claim 7 for drawing electromagnetic field intensity distribution map, which is characterized in that the fixing piece packet
Include supporting table and supporting rod；
The supporting rod is set in the supporting table；
The camera is set to one end of the supporting rod.
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| CN112130003A (en) * | 2020-09-03 | 2020-12-25 | 南京理工大学 | Device and method for removing electromagnetic interference signals in same frequency band |
| CN112578462A (en) * | 2020-12-11 | 2021-03-30 | 北京卫星环境工程研究所 | Detection result real-time visualization method based on gradient magnetic field |
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