CN108234018A - A kind of visible light communication equipment receptivity measuring device and method - Google Patents
A kind of visible light communication equipment receptivity measuring device and method Download PDFInfo
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- CN108234018A CN108234018A CN201711442117.5A CN201711442117A CN108234018A CN 108234018 A CN108234018 A CN 108234018A CN 201711442117 A CN201711442117 A CN 201711442117A CN 108234018 A CN108234018 A CN 108234018A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
Abstract
The invention discloses a kind of visible light communication equipment receptivity measuring devices and method, described device to include：VLC signal optical sources fixture to be measured, Multi-stage adjustable attenuator, semi-transparent semi-reflecting lens, VLC reception devices fixture to be measured, illumination photometer, X Y Twin-shaft machineries arms and babinet.The measuring method includes：Random sequence is generated to VLC device to be measured by control system, regional structure to be measured can linear change and the wider optical signal of range, receive the signal of VLC device receiving terminal, and verified with original signal.Described device and method realize the inspection to parameters such as the sensitivity of VLC device, maximum input signal intensity, effective propagation paths, and applicability is good, improves measurement accuracy and detection efficiency, be applicable to it is various in the case of automatic measurement.
Description
Technical field
The invention belongs to field of optical measuring technologies more particularly to a kind of visible light communication equipment receptivity measuring devices
And method.
Background technology
Visible light communication (Visible Light Communication, VLC) is wireless communication, one kind of optic communication, is
The communication technology of new generation of information is transmitted using " visible light " being visible with the naked eye.
VLC device transmission rate, stability, sensitivity, maximum input signal intensity, signal optical source effective propagation path etc.
For index as industry, an important parameter of scientific research field, accurately and rapidly measuring has industrial production and process control
Very important effect.
The test of light source receptivity used in visible light communication equipment mainly includes two side of test method and test device
Face.Test method such as patent CN 101632245A, CN106027148A, CN103781261A, CN107127237A, for electricity
The output of force transformation unit changes the illumination light to detect transmitting element reception, by controlling the input voltage of halogen lamp, changes
Halogen lamp brightness, it is special according to the optics of image slices vegetarian refreshments in standard IR scene so as to change the background illuminance in visible ray darkroom
Value indicative and visible-light response angle value can calculate the assessed value of visual intensity.Test device such as patent CN105846898A
Deng, optic communication sending device for the communication information transmitted to be modulated to line by line in original image signal, modulation image is generated
Signal, it is seen that optic communication reception device is used to acquire modulated image signal.
Above-mentioned specific Patent Reference and pertinent literature are：
1), " reception device and visible light communication system of visible light communication ", patent No. CN101632245A.The invention
It is open that a kind of reception device and visible light communication system of the visible light communication for not needing to supply electric power reception device are provided.
It is made of data accumulation device, data sending device, data sink, data sending device has：Data receipt unit is used
Data are received in data accumulation device；Transmitting element, the data for modulation unit modulation are sent to as the carrier wave of illumination light
Above-mentioned data sink；Data sink has：Optical detecting unit is illuminated, is come for the output variation of electric power conversion unit
Detect the illumination light that transmitting element receives.It removes except similar modular blocks, test device of the present invention also decays comprising Multi-stage adjustable
Device and X-Y Twin-shaft machinery arm mobile modules, it can be ensured that brightness value is in normal range of operation at test optical signal receiving device；
Control is with data transmission module, it can be achieved that artificial intelligence control test process, human-computer interaction and data display record and storage.It should
With the technology of the present invention, the receptivity that the invention proposes visible light communication system can be measured.
2), " a kind of visible light communication method, sending device, reception device and system ", patent No. CN105846898A.It should
Disclosure of the invention provides a kind of visible light communication system, including：Visible light communication sending device and visible light communication reception device；Institute
Optic communication sending device is stated for the communication information transmitted to be modulated in original image signal line by line, generation modulation image letter
Number, and the modulated image signal is shown in a manner of progressive scan；The visible light communication reception device is modulated for acquiring
Picture signal, and the modulated image signal is progressively scanned, demodulate the communication information in the modulated image signal.For visible
Optic communication receive process, how description by algorithm tests out brightness value to the present invention automatically by device emphatically, realizes that automation is surveyed
Examination improves testing efficiency and measuring accuracy.
3), " a kind of visible light communication system and method ", patent No. CN106027148A.The invention is related to a kind of visible ray
Communication system and method, including：Visible light illuminator, visible optical pickup apparatus and wireless communication device；The visible ray shines
Bright device, for receiving the downlink signal that the network server is sent, the downlink signal that the network server is sent turns
Visible light signal is changed to, and emits the visible light signal and receives the terminal that the visible optical pickup apparatus is forwarded and set
The uplink signal that the terminal device is sent is sent to the network server by the uplink signal that preparation is sent；The visible ray
The visible light signal for receiving the visible light signal, and is converted to electric signal, sends the electric signal by reception device
The uplink signal sent to the wireless communication device and the reception terminal device, the terminal device is sent upper
Row signal is forwarded to the visible light illuminator；Removing unit divides similar modular blocks, and test device of the present invention is also comprising multistage adjustable
Formula attenuator and semi-transparent semi-reflecting lens, for substantially decaying to light, light transmittance T discrete can be adjusted, it can be ensured that the test time
Brightness value is equal at signal receiving device and is in normal range of operation；Improve the reliability and accuracy rate of test.
4th, " the infrared lamp control method of infrared network video camera ", patent No. CN103781261A.The invention provides one
The infrared lamp control method of kind infrared network video camera by the pixel RGB data to acquiring image, calculates pixel
Optical feature value can be calculated according to the optical feature value of image slices vegetarian refreshments in standard IR scene and visible-light response angle value
The assessed value of visual intensity realizes the control to infrared lamp open and close.The present invention passes through X-Y Twin-shaft machinery arm mobile modules
VLC reception devices are precisely controlled, realize that brightness value, maximum input signal intensity directly read function.
5th, " a kind of variable visible ray darkroom of background illuminance and its operating method ", patent No. CN107127237A.The hair
Bright visible ray darkroom is internally provided with the halogen lamp being placed in immediately below the dome centre of sphere, the curtain of halogen lamp light directive hemisphere face shape
The top of plate generates diffusing reflection effect by the diffusing reflection coating of the curtain plate inner surface of hemisphere face shape, can be formed in darkroom
All directions, particularly direction from top to bottom, close to uniform illumination environment.Since the brightness of halogen lamp can be with input voltage
Change and change, by controlling the input voltage of halogen lamp, change halogen lamp brightness, shone so as to change the background in visible ray darkroom
Degree, solve thes problems, such as that current visible ray darkroom can not provide different background illumination.The present invention by 50% semi-transparent half
Anti- mirror realizes that brightness value, maximum input signal intensity directly read function to being precisely controlled to visible light source.
Invention content
It is filled in order to solve the above technical problems, being measured the object of the present invention is to provide a kind of visible light communication equipment receptivity
It puts and method, the device and method meets receiving sensitivity, real-time, the accurate measurement request of maximum input signal.
The purpose of the present invention is realized by following technical solution：
A kind of visible light communication equipment receptivity measuring device, the device include：It is VLC signal optical sources fixture to be measured, more
The adjustable attenuator of grade, semi-transparent semi-reflecting lens, VLC reception devices fixture to be measured, illumination photometer, X-Y Twin-shaft machineries arm and babinet；It is described
VLC signal optical sources fixture to be measured, for folding up VLC signal optical sources to be measured；
Multi-stage adjustable attenuator, for substantially decaying to light, and its light transmittance of discrete adjustment T；
Semi-transparent semi-reflecting lens, for dividing equally the light after attenuator to VLC reception devices and illumination photometer；
VLC reception devices fixture to be measured, for folding up VLC reception devices；
Illumination photometer, for measuring the illumination of VLC reception devices；
X-Y Twin-shaft machinery arms, for adjusting the air line distance of illumination photometer and VLC signal optical sources to be measured；
Babinet, for blocking external light.
A kind of measuring method of visible light communication equipment receptivity, this method include：
A, the VLC signal optical sources to be measured of input are divided equally to illumination photometer by Multi-stage adjustable attenuator, semi-transparent semi-reflecting lens
With VLC reception devices to be measured；
B, mobility model is established according to the moving process of X-Y Twin-shaft machinery arms, and moves VLC reception devices to distalmost end；
C, it adjusts the transmitance of Multi-stage adjustable attenuator and is loaded from big to small, until receiving terminal cannot receive
Normal random sequence；
D, mobile VLC reception devices are close to VLC signal optical sources to be measured, until normal random sequence, and root can be received
It is established according to the reception pattern of illumination and receives model；
E, current light degree count value, as VLC device sensitivity E are recordedmin, it is effective to measure VLC signal optical sources to be measured
Transmission range L, and stop generating random sequence；
F, mobility model is established according to the moving process of X-Y Twin-shaft machinery arms, and moves VLC reception devices to most proximal end；
G, the transmitance for adjusting Multi-stage adjustable attenuator is loaded from small to large, until receiving terminal can receive normally
Random sequence；
H, mobile VLC reception devices and separate VLC signal optical sources, until normal random sequence cannot be just received,
And it is established according to the reception pattern of illumination and receives model；
I, current illumination count value, as VLC device maximum input signal intensity E are recordedmax, and stop generating stochastic ordering
Row.
Compared with prior art, one or more embodiments of the invention can have the following advantages that：
Measuring device includes Multi-stage adjustable attenuator and semi-transparent semi-reflecting lens, for substantially decaying to light, light transmittance T
It discrete can adjust, it can be ensured that brightness value is equal at test optical signal receiving device and is in normal range of operation, improves and surveys
The reliability and accuracy rate of examination.VLC reception devices are precisely controlled by X-Y Twin-shaft machinery arm mobile modules, realization brightness value,
Maximum input signal intensity directly reads function.
Measuring method realizes the inspection to parameters such as the sensitivity of VLC device, maximum input signal intensity, effective propagation paths
Test, applicability is good, improves measurement accuracy and detection efficiency, be applicable to it is various in the case of automatic measurement.
Description of the drawings
Fig. 1 is the module catenation principle figure of visible light communication equipment receptivity measuring device；
Fig. 2 is the structure flow chart of visible light communication equipment receptivity measuring method；
Fig. 3 is visible light communication equipment receptivity measuring method detailed test flow chart；
Fig. 4 is the light path principle figure to be measured of visible light communication equipment receptivity measuring device.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and attached drawing to this hair
It is bright to be described in further detail.
As shown in Figure 1, the module catenation principle figure for visible light communication equipment receptivity measuring device, measuring device packet
It includes：VLC signal optical sources fixture to be measured, Multi-stage adjustable attenuator, semi-transparent semi-reflecting lens, VLC reception devices fixture to be measured, illumination
Meter, X-Y Twin-shaft machineries arm and babinet；The VLC signal optical sources fixture to be measured, for folding up VLC signal optical sources to be measured；Multistage can
Mode attenuator, for substantially decaying to light, and its light transmittance of discrete adjustment T；Semi-transparent semi-reflecting lens, for will be after attenuator
Light is divided equally to VLC reception devices and illumination photometer；VLC reception devices fixture to be measured, for folding up VLC reception devices；Illumination photometer is used
In the illumination for measuring VLC reception devices；X-Y Twin-shaft machinery arms, in adjustment illumination photometer and VLC signal optical sources to be measured straight line away from
From；Babinet, for blocking external light.
The light transmittance of above-mentioned discrete adjustment Multi-stage adjustable attenuator is respectively T from small to large1、T2…Tn…TN-1、TN,
Middle T1=5%, T2=20%, T13=35%, T4=50%, T5=75%, T6=90%；Above-mentioned semi-transparent semi-reflecting lens, will be through excessive
Light after the adjustable attenuator of grade is divided equally with 50% to VLC reception devices and illumination photometer.
The VLC signal optical sources to be measured, Multi-stage adjustable attenuator, semi-transparent semi-reflecting lens, VLC reception devices to be measured and illumination
Meter forms light path；Light path light route of transmission is：Multi-stage adjustable attenuator is passed through by VLC signal optical sources to be measured,
Output light energy (power) VLC signal optical sources attenuation relatively to be measured, by the hole on hole and light barrier thereon, using inclination
The semi-transparent semi-reflecting lens that angle is 45 ° carry out impartial light splitting and are projected to VLC reception devices to be measured and illumination photometer, complete optical signal
Transmitting, attenuation, filtering and reception (as shown in Figure 2).
The present embodiment additionally provides a kind of visible light communication equipment receptivity measuring method, as shown in figure 3, the method
Including：
Step 10 is divided equally the VLC signal optical sources to be measured of input to photograph by Multi-stage adjustable attenuator, semi-transparent semi-reflecting lens
Degree meter and VLC reception devices to be measured；
Step 20 establishes mobility model according to the moving process of X-Y Twin-shaft machinery arms, and mobile VLC reception devices are to farthest
End；
Step 30 adjusts the transmitance of Multi-stage adjustable attenuator and is loaded from big to small, until receiving terminal cannot connect
Receive normal random sequence；
Step 40 moves VLC reception devices close to VLC signal optical sources to be measured, until normal random sequence can be received,
And it is established according to the reception pattern of illumination and receives model；
Step 50 records current light degree count value, as VLC device sensitivity Emin, measure VLC signal optical sources to be measured
Effective propagation path L, and stop generating random sequence；
Step 60 establishes mobility model according to the moving process of X-Y Twin-shaft machinery arms, and mobile VLC reception devices are to nearest
End；
The transmitance that step 70 adjusts Multi-stage adjustable attenuator is loaded from small to large, until receiving terminal can receive
Normal random sequence；
Step 80 movement VLC reception devices and separate VLC signal optical sources, until cannot just receive normal stochastic ordering
Row, and established according to the reception pattern of illumination and receive model；
Step 90 records current illumination count value, as VLC device maximum input signal intensity Emax, and stop generate with
Machine sequence.
It is as follows to provide visible light communication equipment receptivity measuring method detailed test flow as shown in Figure 4：
Above-mentioned steps 10 specifically include：After each equipment is normally connected and worked, according to the normal of the VLC device to be measured of input
Signal optical source is divided equally to illumination photometer and VLC reception devices to be measured by Multi-stage adjustable attenuator, semi-transparent semi-reflecting lens, makes illumination
Meter and VLC reception devices to be measured are in normal operating conditions；
Step 20, mobility model is established according to X-Y Twin-shaft machinery arm moving process, design parameter includes：Transverse shifting row
Journey Lx, transverse shifting speed Vx, VLC signal optical sources and illumination photometer air line distance L；
If stepper motor number of phases m=2, rotor number of teeth Z=100, COEFFICIENT K=1 (K=when the adjacent number of phases of energization twice is identical
1, the adjacent number of phases of energization twice difference K=2)；Then stepper motor step angle α is：
If leading screw head number n=1, screw pitch p=2, input pulse number nf=60000, input pulse frequency f=320Hz, then
Transverse shifting stroke LxWith transverse shifting speed VxFor：
If illumination photometer the air line distance L from VLC signal optical sources to be measured, guide rail overall length Lmax, when illumination photometer is moved to guide rail most
During distal end, meet relationship：
L=Lmax=600mm
The transmitance that step 30 adjusts Multi-stage adjustable attenuator is loaded from big to small, until receiving terminal cannot receive
To normal random sequence；If VLC signal optical sources to be measured pass through Multi-stage adjustable attenuator, light transmittance T discrete can be adjusted,
Adjustable light transmittance is respectively T from small to large1=5%, T2=20%, T13=35%, T4=50%, T5=75%, T6=
90%, when adjacent 2 transmitances of attenuator, which correspond to brightness value, meets the following conditions, it is to be understood that brightness value EminIt falls in En+1To En
In this section, i.e. VLC device sensitivity EminMeet condition：
En≥Emin＞ En+1
Step 40 is established according to the reception pattern of illumination and receives model, and design parameter includes：VLC device sensitivity Emin, treat
Survey VLC signal optical source effective propagation paths L, fine tuning movement speed Vt；
If time t, stepper motor step angle α=1.8 °, leading screw head number n=1, screw pitch p=2, input pulse frequency f=
320Hz, establish velocity attenuation function k (t)=e-t, movement speed is finely tuned from vmax=3.2mm/s successively decreases v successivelyn…v1, then finely tune
Movement speed VtAnd VLC signal optical sources effective propagation path L to be measured is：
The air line distance L of pattern, fine tuning illumination photometer and VLC signal optical sources to be measured is finely tuned using X-Y Twin-shaft machineries arm, until
Illumination photometer output illuminance value meets E=EminWhen, measure the effective propagation path L=of illumination photometer and VLC signal optical sources to be measured at this time
LE。
Step 50 record current light degree probe numerical value, and stop generating random sequence, as VLC device receives sensitive
Degree；
Step 60 establishes mobility model according to X-Y Twin-shaft machinery arm moving process, and design parameter includes：Transverse shifting stroke
Lx, transverse shifting speed Vx, VLC signal optical sources and illumination photometer air line distance L；
If stepper motor number of phases m=2, rotor number of teeth Z=100, COEFFICIENT K=1 (K=when the adjacent number of phases of energization twice is identical
1, the adjacent number of phases of energization twice difference K=2)；Then stepper motor step angle α is：
If leading screw head number n=1, screw pitch p=2, input pulse number nf=60000, input pulse frequency f=320Hz, then
Transverse shifting stroke LxWith transverse shifting speed VxFor：
If illumination photometer the air line distance L from VLC signal optical sources to be measured, guide rail overall length Lmax, when illumination photometer is moved to guide rail most
During proximal end, meet relationship：
L=Lmin=50mm
The transmitance that step 70 adjusts Multi-stage adjustable attenuator is loaded from small to large, until receiving terminal can receive
Normal random sequence；If VLC signal optical sources to be measured pass through Multi-stage adjustable attenuator, light transmittance T discrete can be adjusted, can
The light transmittance of tune is respectively T from small to large1=5%, T2=20%, T13=35%, T4=50%, T5=75%, T6=90%,
When adjacent 2 transmitances of attenuator, which correspond to brightness value, meets the following conditions, it is to be understood that maximum input signal intensity EmaxIt falls in En
To En+1In this section, i.e., VLC device maximum input signal intensity E to be measuredmaxMeet condition：
En＜ Emax≤En+1
Step 80 is established according to the reception pattern of illumination and receives model, and design parameter includes：VLC device sensitivity Emin, treat
Survey VLC signal optical source effective propagation paths L, fine tuning movement speed Vt；
If time t, stepper motor step angle α, leading screw head number n, screw pitch p, input pulse frequency f establish velocity attenuation letter
Number k (t)=e-t, movement speed is finely tuned from vmax=3.2mm/s successively decreases v successivelyn…v1, then movement speed V is finely tunedtAnd VLC to be measured
Signal optical source effective propagation path L is：
The air line distance L of pattern, fine tuning illumination photometer and VLC signal optical sources to be measured is finely tuned using X-Y Twin-shaft machineries arm, until
Illumination photometer output illuminance value meets E=Emax。
Step 90 record current light degree probe numerical value, and stop generating random sequence, as VLC device maximum input letter
Number intensity.
Although disclosed herein embodiment as above, the content only to facilitate understand the present invention and adopt
Embodiment is not limited to the present invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But the scope of patent protection of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of visible light communication equipment receptivity measuring device, which is characterized in that described device includes：VLC signals to be measured
Light source fixture, Multi-stage adjustable attenuator, semi-transparent semi-reflecting lens, VLC reception devices fixture to be measured, illumination photometer, X-Y Twin-shaft machinery arms
And babinet；It is described
VLC signal optical sources fixture to be measured, for folding up VLC signal optical sources to be measured；
Multi-stage adjustable attenuator, for substantially decaying to light, and its light transmittance of discrete adjustment T；
Semi-transparent semi-reflecting lens, for dividing equally the light after attenuator to VLC reception devices and illumination photometer；
VLC reception devices fixture to be measured, for folding up VLC reception devices；
Illumination photometer, for measuring the illumination of VLC reception devices；
X-Y Twin-shaft machinery arms, for adjusting the air line distance of illumination photometer and VLC signal optical sources to be measured；
Babinet, for blocking external light.
2. visible light communication equipment receptivity measuring device as described in claim 1, which is characterized in that
The light transmittance of discrete adjustment Multi-stage adjustable attenuator is respectively T from small to large1、T2…Tn…TN-1、TN；
The VLC signal optical sources to be measured, Multi-stage adjustable attenuator, semi-transparent semi-reflecting lens, VLC reception devices to be measured and illumination photometer structure
Into light path；Light path passes through Multi-stage adjustable attenuator by VLC signal optical sources to be measured, and output light energy is relatively to be measured
VLC signal optical sources are decayed, and carry out impartial light splitting using the semi-transparent semi-reflecting lens that angle of inclination is 45 ° and be projected to VLC to be measured to connect
Receiving apparatus and illumination photometer.
3. visible light communication equipment receptivity measuring device as described in claim 1, which is characterized in that the illumination photometer arrives
Semi-transparent semi-reflecting lens distance is equal to this saturating semi-reflective mirror air line distance with reception device.
4. a kind of visible light communication equipment receptivity measuring method, which is characterized in that the method includes：
A, the VLC signal optical sources to be measured of input are divided equally to illumination photometer and treated by Multi-stage adjustable attenuator, semi-transparent semi-reflecting lens
Survey VLC reception devices；
B, mobility model is established according to the moving process of X-Y Twin-shaft machinery arms, and moves VLC reception devices to distalmost end；
C, it adjusts the transmitance of Multi-stage adjustable attenuator and is loaded from big to small, until receiving terminal cannot receive normally
Random sequence；
D, mobile VLC reception devices are close to VLC signal optical sources to be measured, until normal random sequence can be received, and according to photograph
The reception pattern of degree, which is established, receives model；
E, current light degree count value, as VLC device sensitivity E are recordedmin, measure VLC signal optical sources to be measured and effectively transmit
Distance L, and stop generating random sequence；
F, mobility model is established according to the moving process of X-Y Twin-shaft machinery arms, and moves VLC reception devices to most proximal end；
G, adjust Multi-stage adjustable attenuator transmitance loaded from small to large, until receiving terminal can receive normally with
Machine sequence；
H, mobile VLC reception devices and separate VLC signal optical sources, until cannot just receive normal random sequence, and root
It is established according to the reception pattern of illumination and receives model；
I, current illumination count value, as VLC device maximum input signal intensity E are recordedmax, and stop generating random sequence.
5. visible light communication equipment receptivity measuring method as claimed in claim 4, which is characterized in that in the step B,
Included according to the design parameter that the moving process of X-Y Twin-shaft machinery arms is established in mobility model：Transverse shifting stroke Lx, laterally move
Dynamic speed Vx, VLC signal optical sources and illumination photometer air line distance L；
If stepper motor number of phases m, rotor tooth number Z, COEFFICIENT K, wherein, K=1 when the adjacent number of phases of energization twice is identical, it is adjacent twice
K=2 during energization number of phases difference；Then stepper motor step angle α is：
If leading screw head number n, screw pitch p, input pulse number nf, input pulse frequency f, then transverse shifting stroke LxAnd transverse shifting
Speed VxFor：
If illumination photometer the air line distance L from VLC signal optical sources to be measured, guide rail overall length Lmax, when illumination photometer is moved to guide rail distalmost end
When, meet relationship：
L=Lmax。
6. visible light communication equipment receptivity measuring method as claimed in claim 4, which is characterized in that in the step C,
According to signal optical source conductive process, conduction model is established, design parameter includes：VLC device sensitivity Emin；
If VLC signal optical sources to be measured pass through Multi-stage adjustable attenuator, its transmitance is adjusted from TNSuccessively decrease T successivelyn…T1, when declining
When subtracting the two neighboring transmitance of device and corresponding to brightness value and meet the following conditions, then brightness value EminIt falls in En+1To EnIn this section,
That is VLC device sensitivity EminMeet condition：
En≥Emin＞ En+1。
7. visible light communication equipment receptivity measuring method according to claim 4, which is characterized in that the step D
In, it is established according to the reception pattern of illumination and receives model, design parameter includes：VLC device sensitivity Emin, VLC flashlights to be measured
Source effective propagation path L, fine tuning movement speed Vt；
If the time is t, stepper motor step angle is α, and leading screw head number is n, and screw pitch p, input pulse frequency is f, establishes speed
Attenuation function is k (t)=e-t, movement speed is finely tuned from vmaxSuccessively decrease v successivelyn…v1, then movement speed V is finely tunedtAnd VLC letters to be measured
Number light source effective propagation path L is：
Pattern, the air line distance L of fine tuning illumination photometer and VLC signal optical sources to be measured, until illumination are finely tuned using X-Y Twin-shaft machineries arm
Meter output illuminance value meets E=EminWhen, measure the effective propagation path L=L of illumination photometer and VLC signal optical sources to be measured at this timeE。
8. visible light communication equipment receptivity measuring method according to claim 4, spy's card is, the step F
In, mobility model design parameter is established according to the moving process of X-Y Twin-shaft machinery arms and is included：VLC signal optical sources and illumination photometer are straight
Linear distance L；
If air line distance of the illumination photometer from VLC signal optical sources to be measured is L, guide rail overall length is Lmax, when illumination photometer is moved to guide rail most
During proximal end, meet relationship：
L=Lmin。
9. visible light communication equipment receptivity measuring method according to claim 4, which is characterized in that the step G
In, according to signal optical source conductive process, conduction model is established, design parameter includes：VLC device maximum input signal intensity to be measured
It is worth for Emax；
If VLC signal optical sources to be measured pass through Multi-stage adjustable attenuator, its transmitance is adjusted from TNT incremented by successively1…Tn, when declining
When subtracting the two neighboring transmitance of device and corresponding to brightness value and meet the following conditions, it is to be understood that maximum input signal intensity EmaxIt falls in EnExtremely
En+1In section, i.e., VLC device maximum input signal intensity E to be measuredmaxMeet condition：
En＜ Emax≤En+1。
10. visible light communication equipment receptivity measuring method according to claim 4, which is characterized in that the step H
In, reception model design parameter is established according to the reception pattern of illumination and is included：VLC device maximum input signal intensity value to be measured is
Emax, VLC signal optical sources effective propagation path L to be measured, fine tuning movement speed Vt；
If the time is t, stepper motor step angle is α, and leading screw head number is n, and screw pitch p, input pulse frequency is f, establishes speed
Attenuation function k (t)=e-t, movement speed is finely tuned from vmaxSuccessively decrease v successivelyn…v1, then movement speed V is finely tunedtAnd VLC signals to be measured
Light source effective propagation path L is：
Pattern, the air line distance L of fine tuning illumination photometer and VLC signal optical sources to be measured, until illumination are finely tuned using X-Y Twin-shaft machineries arm
Meter output illuminance value meets E=EmaxWhen, i.e. VLC device maximum input signal intensity Emax。
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