CN109613619A - The driving device and method of single arm type millimeter wave imaging system rotating mechanism - Google Patents
The driving device and method of single arm type millimeter wave imaging system rotating mechanism Download PDFInfo
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- CN109613619A CN109613619A CN201811571725.0A CN201811571725A CN109613619A CN 109613619 A CN109613619 A CN 109613619A CN 201811571725 A CN201811571725 A CN 201811571725A CN 109613619 A CN109613619 A CN 109613619A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 90
- 238000003384 imaging method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 23
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- 238000005070 sampling Methods 0.000 claims description 8
- 208000033748 Device issues Diseases 0.000 claims description 2
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- 238000001514 detection method Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
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- 238000004458 analytical method Methods 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/005—Prospecting or detecting by optical means operating with millimetre waves, e.g. measuring the black losey radiation
Abstract
The invention proposes the driving devices and method of single arm type millimeter wave imaging system rotating mechanism, including frame, rotating turret, bearing, rotating drive mechanism, travel switch, travel switch trigger, position encoder device, control module, radiometer array；Rotating drive mechanism, travel switch are mounted on the upper surface or lower surface of frame roof platform；Rotating drive mechanism drives rotating turret relative to frame member；Rotating turret drives the rotation of radiometer array；Control module is according to obtaining angle of the rotating turret that signal and position encoder device provide of being triggered of travel switch relative to frame, control rotating drive mechanism operation.The rotation of driving motor driving driving gear drive driven gear can be used in rotating drive mechanism, and perhaps driving motor driving driving wheel passes through chain or belt drives driven wheel to rotate or using direct driving motor.The present invention provides flexible alternative driving device for single arm type rotating mechanism.
Description
Technical field
The present invention relates to the rotating mechanism actuation techniques fields of near-field scan formula millimeter wave imaging system, specifically provide list
The driving device and method of arm-type millimeter wave imaging system rotating mechanism.
Background technique
The principle of millimeter wave imaging system is to acquire measured target in multiple position millimeter wave radiometers to issue or (/ and)
The millimeter-wave radiation of reflection, the quantitative analysis difference between collected radiation signal data everywhere and association situation, accordingly really
The distribution character of the fixed millimeter-wave radiation from measured target, and then generate required measured target image.In order to
Millimeter-wave radiation of multiple station acquisitions from measured target, typical way are MxN radiometer unit with M--N array
Form arrange.But when making the value of M, N all obtain bigger to obtain better imaging effect, this side
Formula is in great demand to radiometer unit, and economy is bad；If enabling M=N=1, need to change this radiometer unit
Spatial position, with it is this change and acquire the millimeter-wave radiation from measured target, need to make radiometer in this case
Unit traversal should all do the position tested, and when keeping test position more to obtain better imaging effect, generate
Time required for every frame image is too long.The scheme of compromise is to enable that the M value in M--N array is bigger, the smaller (example of N value
Such as N=1), so that this array is prolonged the direction movement perpendicular to M extending direction when acquiring radiation signal, in moving process repeatedly
Acquire radiation signal.
The typical case scene of millimeter wave imaging system is to utilize millimeter wave as the core system of personnel's rays safety detection apparatus
Transmissison characteristic finds that tested personnel conceal the dangerous goods of carrying.Under the application scenarios of personnel's safety check, typical scenario first is that
Tested personnel are allowed to stand the position in the middle part of detection device, M millimeter wave radiometer unit is in M--1 array perpendicular to ground arrangement
And tested personnel are directed toward, driving mechanism drives radiometer cell array and rotates a certain angle around tested personnel, rotary course
In each millimeter-wave radiation of the radiometer multi collect from tested personnel, the data obtained sequence is sent to computing module, as point
The initial data used when analysis.About the single armed rotating mechanism of millimeter wave imaging system, in the prior art, there are no cleverer
Alternative driving device living.
Summary of the invention
For disadvantage mentioned above, the invention proposes the driving device of single arm type millimeter wave imaging system rotating mechanism and sides
Method provides flexible alternative driving device for single armed millimeter wave imaging system rotating mechanism.
The driving device of single arm type millimeter wave imaging system rotating mechanism, including frame, rotating turret, bearing, rotate driving
Mechanism, travel switch, travel switch trigger, position encoder device, control module, radiometer array；
The rotating drive mechanism, travel switch, bearing are mounted on the upper surface of frame roof or are suspended on frame top
The lower surface in portion；The bearing is used for connection framework and rotating turret；
The travel switch trigger, radiometer array are fixed on rotating turret, the travel switch trigger to rotation
The distance of frame axis is identical at a distance from travel switch to rotating turret axis, and the travel switch trigger is with rotating turret
When the surface of travel switch is passed through in rotation, control module receives the signal that is triggered of travel switch；
The code device is fixed on the upper surface of frame roof or is suspended on the lower surface of frame roof, and described
The rotation axis of position encoder device and the rotation overlapping of axles of rotating turret；
The control module is mounted on frame, according to be triggered signal and the position encoded dress for obtaining travel switch
Angle of the rotating turret relative to frame for setting offer, controls the operation of rotating drive mechanism.
Further, the frame includes fixed platform, vertical support rod and pedestal；
The fixed platform is surface platform or hollow out platform；It is preferred that hollow out platform；
The vertical support rod is fixed height support rod or is mechanical, electronically controlled retractable support lever.
Further, the travel switch includes A travel switch and B travel switch；The A travel switch is to rotating turret axis
The distance of line is identical at a distance from the B travel switch to rotating turret axis.
Further, the rotating drive mechanism includes driving motor, driving gear and driven gear；The driving motor
Driving gear is driven to drive driven gear rotation；The driven gear driving rotating turret is relative to frame member；The rotating turret
Drive the rotation of radiometer array.
Further, the rotating drive mechanism includes driving motor, driving wheel, driven wheel and driving wheel and driven wheel
Between transmission equipment；The driving motor driving driving wheel drives driven wheel rotation by transmission equipment；The driven wheel drives
Turn moving frame is relative to frame member；The rotating turret drives the rotation of radiometer array.
Further, the transmission equipment is chain or belt；
The chain is between driving wheel and driven wheel；The driving wheel is rotated by chain-driving driven wheel；
For the belt between driving wheel and driven wheel, the driving wheel drives driven wheel to rotate by belt.
Further, the rotating drive mechanism includes direct driving motor；The direct driving motor driving rotating turret is relative to frame
Frame rotation；The rotating turret drives the rotation of radiometer array.
The driving method of single arm type millimeter wave imaging system rotating mechanism is rotated based on single arm type millimeter wave imaging system
What the driving device of mechanism was realized, comprising the following steps:
S1: control module acquires the first angle value between travel switch trigger and A travel switch；
S2: control module control rotating drive mechanism, make rotating drive mechanism drive bogie, travel switch trigger,
The rotation of radiometer array, the direction of the rotation are to the direction close to A travel switch, process of the position encoder device in rotation
In, according to first angle value, obtain real-time angular and angular speed of the bogie relative to A travel switch, and then adjust rotation and drive
The revolving speed of motivation structure, it is ensured that bogie steadily accelerates, and revolving speed is rated speed when bogie reaches A travel switch；
S3: when travel switch trigger passes through A travel switch, the A that control module receives A travel switch is triggered letter
Number, the angular speed of the rotating turret then provided according to position encoder device issues sampled signal to radiometer array, acquires number
According to until sampling terminates；
S4: as the rotation of rotating turret controls mould when travel switch trigger passes through B travel switch with rated speed
The B that block receives B travel switch is triggered signal, while the second angle value of record position code device record, and then adjusts and turn
The revolving speed of dynamic driving mechanism, it is ensured that bogie steadily slows down, and until being reduced as 0, while recording position encoder device at this time and recording
The third angle angle value, subtract second angle value with the third angle angle value and obtain differential seat angle A.
The effect provided in summary of the invention is only the effect of embodiment, rather than invents all whole effects, above-mentioned
A technical solution in technical solution have the following advantages that or the utility model has the advantages that
The embodiment of the present invention proposes the driving device and method of single arm type millimeter wave imaging system rotating mechanism, the device
Including frame, rotating turret, bearing, rotating drive mechanism, travel switch, travel switch trigger, position encoder device, control mould
Block, radiometer array；Rotating drive mechanism, travel switch, bearing are mounted on the upper surface of frame roof or are suspended on frame
The lower surface at top；Bearing is used for connection framework and rotating turret；Travel switch trigger, radiometer array are fixed on rotating turret
On, the distance of travel switch trigger to rotating turret axis is identical at a distance from travel switch to rotating turret axis, and stroke
For switch trigger when passing through the surface of travel switch with rotating turret rotation, control module receives the letter that is triggered of travel switch
Number；Code device is fixed on the upper surface of frame roof or is suspended on the lower surface of frame roof, and position encoder device
Rotation axis and rotating turret rotation overlapping of axles；Control module is mounted on frame, according to the letter that is triggered for obtaining travel switch
Number and angle of the rotating turret relative to frame that provides of position encoder device, control the operation of rotating drive mechanism.The present invention
Embodiment give 4 kinds driving single armed rotating mechanism devices, gear drive gear drive have will not skid, no
Advantage easy to wear；Compared to chain wheel driving mechanism, avoid that rotating connecting part in transmission mechanism is more, abrasion is very fast, holds
Easily there is the problem of weak spot；And cost is relatively low.Chain wheel driving mechanism have will not skid, nonabradable advantage, and at
This is lower, and avoids high gear drive middle gear requirement on machining accuracy, supply of material quality and cost is uppity asks
Topic.Belt pulley transport mechanism has low to processing request, and supply of material quality facilitates control, and connecting component is less, not easy to wear,
And the advantages of cost is relatively low direct driving motor has the advantages that integrated level is high, the degree of product standardization is high, failure rate is low etc..Otherwise for
The single arm type millimeter wave of single sweep operation can be used for needing the case where improving working efficiency in driving method proposed by the present invention
Imaging system；The single arm type millimeter wave imaging system of double scanning can be used in the case where for needing to reduce equipment sites area.
The price of millimeter wave radiometer is very high, and under identical resolution ratio, the quantity of millimeter wave radiometer needed for single armed rotating mechanism is
The half of both arms rotating mechanism, cost reduce very much；Meanwhile cost of the single armed rotating mechanism in terms of structural material also compares
It is low.It is equally important that single armed rotating mechanism is also more less in occupation area of equipment, lower deployment cost is accordingly reduced, especially
In the place of the ans inch of land is an inch of gold such as airport.The embodiment of the present invention provides flexibly alternative driving dress for single armed rotating mechanism
It sets.
Detailed description of the invention
Fig. 1 is the gear device connection figure of 1 pair scanning of the embodiment of the present invention, single arm type rotating mechanism；
Fig. 2 is the chain sprocket driving device connection figure of 2 pairs scanning of the embodiment of the present invention, single arm type rotating mechanism；
Fig. 3 is the pulley driving device connection figure of 3 pairs scanning of the embodiment of the present invention, single arm type rotating mechanism；
Fig. 4 is the direct driving motor driving device connection figure of 4 pairs scanning of the embodiment of the present invention, single arm type rotating mechanism；
Fig. 5 is the gear device connection figure of 5 single pass of the embodiment of the present invention, single arm type rotating mechanism；
Fig. 6 is the chain sprocket driving device connection figure of 6 single pass of the embodiment of the present invention, single arm type rotating mechanism；
Fig. 7 is the pulley driving device connection figure of 7 single pass of the embodiment of the present invention, single arm type rotating mechanism；
Fig. 8 is the direct driving motor driving device connection figure of 8 single pass of the embodiment of the present invention, single arm type rotating mechanism.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used to realize different knots of the invention
Structure.In order to simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relationship between various embodiments and/or setting is discussed.It should be noted that illustrated component is not necessarily to scale in the accompanying drawings
It draws.Present invention omits the descriptions to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.
The embodiment of the invention provides the driving device of single arm type millimeter wave imaging system rotating mechanism, including frame, turn
Moving frame, bearing, rotating drive mechanism, travel switch, travel switch trigger, position encoder device, control module, radiometer battle array
Column；
Wherein frame includes fixed platform, vertical support rod and pedestal；Fixed platform is that surface platform or hollow out are flat
Platform；It is preferred that hollow out platform；Vertical support rod is fixed height support rod or is mechanical, electronically controlled retractable support lever.
Travel switch includes A travel switch and B travel switch；And A travel switch to rotating turret axis distance and B row
The distance of Cheng Kaiguan to rotating turret axis is identical.
Rotating drive mechanism, travel switch, bearing are mounted on the upper surface of frame roof fixed platform or are suspended on frame
The lower surface of frame fixed platform；Bearing is used for connection framework and rotating turret；
Travel switch trigger, radiometer array are fixed on rotating turret, and travel switch trigger is to rotating turret axis
The distance of line is identical at a distance from travel switch to rotating turret axis, and travel switch trigger is rotated with rotating turret through overtravel
When the surface of switch, control module receives the signal that is triggered of travel switch；
Code device is fixed on the upper surface of frame roof fixed platform or is suspended on the lower surface of frame fixed platform,
And the rotation axis of position encoder device and the rotation overlapping of axles of rotating turret.
Control module is mounted on frame, and control module is according to be triggered signal and the position volume for obtaining travel switch
Angle of the rotating turret that code device provides relative to frame, controls the operation of rotating drive mechanism.
Rotating drive mechanism can drive driven gear rotation or driving motor using driving motor driving driving gear
Driving wheel is driven to drive driven wheel rotation by transmission equipment, wherein transmission equipment uses chain or belt；Chain or skin
Band is between driving wheel and driven wheel；Driving wheel drives driven wheel rotation by chain or belt.It can also directly adopt
Direct driving motor.
Embodiment 1
It is the gear device connection figure of 1 pair scanning of the embodiment of the present invention, single arm type rotating mechanism as shown in Figure 1,
Including frame 1, rotating turret 2, bearing 3, driving motor 4, driving gear 5, driven gear 6, A travel switch 7, B travel switch 8,
Travel switch trigger 9, position encoder device 10, control module 11, radiometer array 12 form.
Frame 1 includes fixed platform, vertical support rod and pedestal；Fixed platform is surface platform or hollow out platform；
It is preferred that hollow out platform；Vertical support rod is fixed height support rod or is mechanical, electronically controlled retractable support lever.Pedestal
It is mounted below transportable universal wheel, is moved easily.When reaching scanning area, universal wheel can be folded into the upper of pedestal
Side will not be moved in measurement.
Shell, A travel switch 7, the B travel switch 8 of driving motor 4 are fixedly mounted on the upper of 1 top fixed platform of frame
Surface, driving gear 5, driven gear 6 also are located at the upper surface of top fixed platform, and wherein driving motor 4 uses stepper motor.
Travel switch trigger 9, radiometer array 12 are fixedly mounted on rotating turret 2, and travel switch trigger 9 is mounted on
On rotating turret 2, the distance of 2 pivot center of rotating turret is arrived, and from A travel switch 7, B travel switch 8 to 2 rotation axis of rotating turret
The distance of line is identical.When rotating turret 2 rotates to certain specific angles relative to frame 1, travel switch trigger 9 touches respectively
A travel switch 7, B travel switch 8 are sent out, the signal that two travel switches are triggered is real-time transmitted to control module 11.
Bearing 3 is used for connection framework 1 and rotating turret 2, to ensure that the two can be relatively rotated with low-frictional force.
Position encoder device 10 is fixed on the upper surface of 1 top fixed platform of frame or is suspended on frame fixed platform
Lower surface, and the rotation overlapping of axles of the rotation axis of position encoder device and rotating turret, with real-time measurement rotating turret 2 and frame 1
Between angular relationship and be output to control module 11.
Control module 11 is mounted on frame 1, and control module 11 obtains the letter that is triggered of A travel switch 7, B travel switch 8
Number, and angle of the rotating turret 2 that is calculated of information relative to frame 1, control driving electricity are provided by position encoder device 10
The rotation of machine.
When work, the shaft of driving motor 4 is rotated relative to its shell, frame 1, and it is opposite that shaft drives driving gear 5
It rotates in frame 1, driving gear 5 drives driven gear 6 and rotates relative to frame 1, and driven gear is with 2 phase of rotating turret
Frame 1 is rotated, rotating turret 2 is with radiometer array 12 relative to frame 1, the quilt stood below 2 rotation axis of rotating turret
Inspection personnel rotation.
Using 1 driving device of the embodiment of the present invention, need to be tested personnel twice sweep, rotating turret 2 in twice sweep
Rotation direction it is opposite.
Firstly, in the initial state, rotating turret 2 is static, travel switch trigger 9 is located at the back side in region to be scanned, and
It is ensured that radiometer array 12, which will not influence tested personnel, enters and leaves detection device, control module acquires travel switch trigger 9 and A
First angle value between travel switch 7.
In the embodiment of the present invention 1, after tested personnel stand the position below 2 rotation axis of rotating turret, control module 11 is controlled
Driving motor 4 processed makes its slow start driving motor 4 to limit starting impact force, and driving motor 4 drives driving gear 5 to rotate.
The rotation of driving gear 5 drives driven gear 6 and then rotates with bogie 2, travel switch trigger 9, radiometer array 12.
Rotation direction is to make travel switch trigger 9 close to A travel switch 7, subsequently into area to be scanned.
Control module 11 is adopted in 2 rotation process of bogie in real time according to first angle value, binding site code device 10
The variation for collecting angle calculates real-time angular, real-time angular speed of the bogie 2 relative to A travel switch 7, and then adjusts accordingly
Save the revolving speed of driving motor 4, it is ensured that bogie 2 steadily accelerates rotation, and ensures that its revolving speed is triggered in stroke switch trigger 9
Reach rated speed before A travel switch 7, after reaching rated speed, stops accelerating, keep rated speed rotation.
When travel switch trigger 9 passes through the position of A travel switch 7 with rated speed, control module 11 is received from A
The signal that is triggered of travel switch 7, the rotational angle of hereafter rotating turret 2 that control module 11 is provided according to position encoder device 10
Information issues sampled signal to radiometer array 12, can be with the angle acquisition of every fixation once from the millimeter wave of tested personnel
Radiation, then transfers data to the data processing unit of rear end, stops sampling after reaching the setting value of sampling.
With the rotation of rotating turret 2, touched when travel switch trigger 9 passes through the position of B travel switch 8 with rated speed
It sends out it and issues signal to control module 11, the reading value of 11 record position code device 10 of control module at this time is second angle
Value then controls driving motor 4 and is smoothly rotated in deceleration, until its revolving speed reduces to 0,11 record position code device of control module
10 reading value at this time is the third angle angle value, when necessary plus the product of zero passage number and whole circle degree, is subtracted with the third angle angle value
Second angle value is gone to obtain differential seat angle A.So far, it completes to adopt the first time millimeter-wave radiation signal scanning of current tested personnel
Collection notifies tested personnel to turn round 180 °, is ready for second of scanning collection.In this scanning, control module control turns
Dynamic driving mechanism makes rotating drive mechanism drive bogie, travel switch trigger, the rotation of radiometer array.
After tested personnel turn round, have stood, control module 11 control driving motor 4, make its slow start driving motor 4 with
Limitation starting impact force, driving motor 4 drive driving gear 5 to rotate.The rotation of driving gear 5 drives driven gear 6, and then band
Bogie 2, travel switch trigger 9, radiometer array 12 rotate.Rotation direction is to make travel switch trigger 9 close to B row
Cheng Kaiguan 8, that is, rotated when second of scanning and scanning for the first time contrary.
Control module 11 is according to the value of the differential seat angle A of storage, and binding site code device 10 is in 2 rotation process of bogie
The variation for collecting angle in real time, calculates real-time angular, real-time angular speed of the bogie 2 relative to B travel switch 8, in turn
The revolving speed of driving motor 4 is adjusted accordingly, it is ensured that bogie 2 steadily accelerates rotation, and ensures its revolving speed in stroke switch triggering
Device 9 reaches rated speed before triggering B travel switch 8, after reaching rated speed, stops accelerating, keeps rated speed rotation
Turn.
When travel switch trigger 9 passes through the position of B travel switch 8 with rated speed, control module 11 is received from B
The signal that is triggered of travel switch 8, the rotational angle of hereafter rotating turret 2 that control module 11 is provided according to position encoder device 10
Information issues sampled signal to radiometer array 12, can be with the angle acquisition of every fixation once from the millimeter wave of tested personnel
Radiation, then transfers data to the data processing unit of rear end, stops sampling after reaching the setting value of sampling.
With the rotation of rotating turret 2, touched when travel switch trigger 9 passes through the position of A travel switch 7 with rated speed
It sends out it and issues signal to control module 11, the reading value of 11 record position code device 10 of control module at this time is fourth angle
Value then controls driving motor 4 and is smoothly rotated in deceleration, until its revolving speed reduces to 0,11 record position code device of control module
10 reading value at this time is the 5th angle value, when necessary plus the product of zero passage number and whole circle degree.Subtracted with the 5th angle value
Fourth angle value is gone to obtain differential seat angle B.Wherein differential seat angle B is the initial value of the first angle value scanned next time.In present scan
In, control module controls rotating drive mechanism, and rotating drive mechanism is made to drive bogie, travel switch trigger, radiometer battle array
Column rotation.
So far, the millimeter-wave radiation signal acquisition to current tested personnel is completed, whole system returns to original state, notifies
Tested personnel leave, and are ready for new round acquisition circulation.
Embodiment 2
It is the chain sprocket driving device connection figure of 2 pairs scanning of the embodiment of the present invention, single arm type rotating mechanism as shown in Figure 2.
It is scanned, compared with the gear device of single arm type rotating mechanism with the embodiment of the present invention 1 pair time, the difference is that, driving electricity
Shell, A travel switch 7, the B travel switch 8 of machine 4 are fixedly mounted on the upper surface of the top fixed platform of frame 1, drive sprocket
5, driven sprocket 6 and chain 13 also are located at the upper surface of the top fixed platform of frame 1, and wherein driving motor 4 is using stepping electricity
Machine.
At work, the shaft of driving motor 4 is rotated relative to its shell, frame 1, and shaft drives 5 phase of drive sprocket
It rotates for frame 1, drive sprocket 5 drives driven sprocket 6 through chain 13 and rotates relative to frame 1,6 band of driven sprocket
Rotating turret 2 relative to frame 1 rotate, rotating turret 2 with radiometer array 12 relative to frame 1, stand rotating turret 2 rotate
Tested personnel rotation below axis.Other component is all the same.
Using 2 driving device of the embodiment of the present invention, when being scanned to security staff, driven with using the embodiment of the present invention 1
The scan method of dynamic device is identical, needs to be tested personnel twice sweep, the rotation direction phase of rotating turret 2 in twice sweep
Instead.
The difference is that in the embodiment of the present invention 2, when being detected position of the personnel station below 2 rotation axis of rotating turret, control
Molding block 11 controls driving motor 4, and driving motor 4 drives drive sprocket 5 to rotate.Drive sprocket 5 is driven driven by chain 13
Gear 6 rotates, and then rotates with bogie 2, travel switch trigger 9, radiometer array 12.
Embodiment 3
It is the pulley driving device connection of 3 pairs scanning of the embodiment of the present invention, single arm type rotating mechanism as shown in Figure 3
Figure.It is scanned, compared with the gear device of single arm type rotating mechanism with the embodiment of the present invention 1 pair time, the difference is that, driving
Shell, A travel switch 7, the B travel switch 8 of motor 4 are fixedly mounted on the upper surface of the top fixed platform of frame 1, active skin
Belt wheel 5, driven pulley 6 and belt 13 also are located at the upper surface of the top fixed platform of frame 1, and wherein driving motor 4 uses
Stepper motor.
At work, the shaft of driving motor 4 is rotated relative to its shell, frame 1, and shaft drives drive pulley 5
It rotates relative to frame 1, drive pulley 5 drives driven pulley 6 through chain 13 and rotates relative to frame 1, driven
Belt pulley 6 is rotated with rotating turret 2 relative to frame 1, and rotating turret 2 is turning with radiometer array 12 relative to frame 1, standing
Tested personnel rotation below 2 rotation axis of moving frame.Other component is all the same.
Using 3 driving device of the embodiment of the present invention, when being scanned to security staff, driven with using the embodiment of the present invention 1
The scan method of dynamic device is identical, needs to be tested personnel twice sweep, the rotation direction phase of rotating turret 2 in twice sweep
Instead.
The difference is that in the embodiment of the present invention 3, when being detected position of the personnel station below 2 rotation axis of rotating turret, control
Molding block 11 controls driving motor 4, and driving motor 4 drives drive pulley 5 to rotate.Drive pulley 5 is driven by belt 13
Driven pulley 6 rotates, and then rotates with bogie 2, travel switch trigger 9, radiometer array 12.
Embodiment 4
4 pairs scanning of the embodiment of the present invention, the direct driving motor driving device connection of single arm type rotating mechanism as shown in Figure 4
Figure.It is scanned, compared with the gear device of single arm type rotating mechanism with the embodiment of the present invention 1 pair time, the difference is that, it is straight to drive
Shell, A travel switch 7, the B travel switch 8 of motor 4 are fixedly mounted on the upper surface of the top fixed platform of frame 1.
At work, the shaft of direct driving motor 4 is rotated relative to its shell, frame 1, and direct driving motor 4 is with 2 phase of rotating turret
Frame 1 is rotated, rotating turret 2 is with radiometer array 12 relative to frame 1, the quilt stood below 2 rotation axis of rotating turret
Inspection personnel rotation.Remaining part is all the same.
Using 4 driving device of the embodiment of the present invention, when being scanned to security staff, driven with using the embodiment of the present invention 1
The scan method of dynamic device is identical, needs to be tested personnel twice sweep, the rotation direction phase of rotating turret 2 in twice sweep
Instead.
The difference is that in the embodiment of the present invention 4, when being detected position of the personnel station below 2 rotation axis of rotating turret, control
Molding block 11 controls direct driving motor 4, and direct driving motor 4 is directly with bogie 2, travel switch trigger 9,12 turns of radiometer array
It is dynamic.
Embodiment 5
It is the gear device connection figure of 1 single pass of the embodiment of the present invention, single arm type rotating mechanism as shown in Figure 5；
Including frame 1, rotating turret 2, bearing 3, driving motor 4, driving gear 5, driven gear 6, A travel switch 7, B travel switch 8,
Travel switch trigger 9, position encoder device 10, control module 11, radiometer array 12 form.
Frame 1 includes fixed platform, vertical support rod and pedestal；Fixed platform is surface platform or hollow out platform；
It is preferred that hollow out platform；Vertical support rod is regular length support rod or is mechanical, electronically controlled retractable support lever.Pedestal
It is mounted below transportable universal wheel, is moved easily.When the region for reaching scanning, universal wheel can be folded into the upper of pedestal
Side will not be moved in measurement.
Shell, A travel switch 7, the B travel switch 8 of driving motor 4 are fixedly mounted under 1 top fixed platform of frame
Surface, driving gear 5, driven gear 6 also are located at the lower surface of top fixed platform, and wherein driving motor 4 uses stepper motor.
Travel switch trigger 9, radiometer array 12 are fixedly mounted on rotating turret 2, and travel switch trigger 9 is mounted on
On rotating turret 2, the distance of 2 pivot center of rotating turret is arrived, and from A travel switch 7, B travel switch 8 to 2 rotation axis of rotating turret
The distance of line is identical.When rotating turret 2 rotates to certain specific angles relative to frame 1, travel switch trigger 9 touches respectively
A travel switch 7, B travel switch 8 are sent out, the signal that two travel switches are triggered is real-time transmitted to control module 11.
Bearing 3 is for the lower surface of the top fixed platform of connection framework 1 and rotating turret 2 to ensure that the two can be rubbed with low
Power is wiped to relatively rotate.
The shell of position encoder device 10 relative to frame 1 be fixedly mounted, and the rotation axis of position encoder device with turn
The rotation overlapping of axles of moving frame, with the angular relationship between real-time measurement rotating turret 2 and frame 1 and are output to control module
11。
Control module 11 is mounted on frame 1, and control module 11 obtains the letter that is triggered of A travel switch 7, B travel switch 8
Number, and angle of the rotating turret 2 that is calculated of information relative to frame 1 is provided by position coder 10, control driving motor
Rotation.
When work, the shaft of driving motor 4 is rotated relative to its shell, frame 1, and it is opposite that shaft drives driving gear 5
It rotates in frame 1, driving gear 5 drives driven gear 6 and rotates relative to frame 1, and driven gear is with 2 phase of rotating turret
Frame 1 is rotated, rotating turret 2 is with radiometer array 12 relative to frame 1, the quilt stood below 2 rotation axis of rotating turret
Inspection personnel rotation.
Using the driving device of the embodiment of the present invention 5, it is only necessary to do single pass to tested personnel.
Firstly, in the initial state, rotating turret 2 is static, travel switch trigger 9 is located at A travel switch and B travel switch
The centre in Non-scanning mode region, and it is ensured that radiometer array 12, which will not influence tested personnel, enters and leaves detection device, control module is adopted
Collect the first angle value between travel switch trigger 9 and A travel switch 7.
After tested personnel stand the position below 2 rotation axis of rotating turret, control module 11 controls driving motor 4, makes it
For slow start driving motor 4 to limit starting impact force, driving motor 4 drives driving gear 5 to rotate.The rotation of driving gear 5
It drives driven gear 6 and then is rotated with bogie 2, travel switch trigger 9, radiometer array 12.Rotation direction is to make to go
Journey switch trigger 9 is close to A travel switch 7, subsequently into area to be scanned.
Control module 11 is adopted in 2 rotation process of bogie in real time according to first angle value, binding site code device 10
The variation for collecting angle calculates real-time angular, real-time angular speed of the bogie 2 relative to A travel switch 7, and then adjusts accordingly
Save the revolving speed of driving motor 4, it is ensured that bogie 2 steadily accelerates rotation, and ensures that its revolving speed is triggered in stroke switch trigger 9
Reach rated speed before A travel switch 7, after reaching rated speed, stops accelerating, keep rated speed rotation.
When travel switch trigger 9 passes through the position of A travel switch 7 with rated speed, control module 11 is received from A
The signal that is triggered of travel switch 7, the rotational angle of hereafter rotating turret 2 that control module 11 is provided according to position encoder device 10
Information issues sampled signal to radiometer array 12, can be with the angle acquisition of every fixation once from the millimeter wave of tested personnel
Radiation, then transfers data to the data processing unit of rear end, stops sampling after reaching the setting value of sampling.
With the rotation of rotating turret 2, touched when travel switch trigger 9 passes through the position of B travel switch 8 with rated speed
It sends out it and issues signal to control module 11, the reading value of 11 record position code device 10 of control module at this time is second angle
Value then controls driving motor 4 and is smoothly rotated in deceleration, until its revolving speed reduces to 0,11 record position code device of control module
10 reading value at this time is the third angle angle value, when necessary plus the product of zero passage number and whole circle degree.Subtracted with the third angle angle value
Second angle value is gone to obtain differential seat angle A.So far, it completes to adopt the first time millimeter-wave radiation signal scanning of current tested personnel
Collection notifies tested personnel to leave, and is ready for next round acquisition circulation.In present scan, control module controls rotate driving
Mechanism makes rotating drive mechanism drive bogie, travel switch trigger, the rotation of radiometer array.
Embodiment 6
It is the chain sprocket driving device connection figure of 6 single pass of the embodiment of the present invention, single arm type rotating mechanism as shown in Figure 6.
With 5 single pass of the embodiment of the present invention, single arm type rotating mechanism gear device compared with, the difference is that, driving electricity
Shell, A travel switch 7, the B travel switch 8 of machine 4 are fixedly mounted on the lower surface of the top fixed platform of frame 1, drive sprocket
5, driven sprocket 6 and chain 13 also are located at the lower surface of the top fixed platform of frame 1, and wherein driving motor 4 is using stepping electricity
Machine.
At work, the shaft of driving motor 4 is rotated relative to its shell, frame 1, and shaft drives 5 phase of drive sprocket
It rotates for frame 1, drive sprocket 5 drives driven sprocket 6 through chain 13 and rotates relative to frame 1,6 band of driven sprocket
Rotating turret 2 relative to frame 1 rotate, rotating turret 2 with radiometer array 12 relative to frame 1, stand rotating turret 2 rotate
Tested personnel rotation below axis.Other component is all the same.
Using 6 driving device of the embodiment of the present invention, when being scanned to security staff, driven with using the embodiment of the present invention 1
The scan method of dynamic device is identical, needs only to need to do single pass to tested personnel.The difference is that the embodiment of the present invention
In 6, when being detected position of the personnel station below 2 rotation axis of rotating turret, control module 11 controls driving motor 4,4 band of driving motor
Dynamic drive sprocket 5 rotates.Drive sprocket 5 drives driven gear 6 to rotate by chain 13, and then with bogie 2, travel switch
Trigger 9, radiometer array 12 rotate.
Embodiment 7
It is the pulley driving device connection of 7 single pass of the embodiment of the present invention, single arm type rotating mechanism as shown in Figure 7
Figure.With 5 single pass of the embodiment of the present invention, single arm type rotating mechanism gear device compared with, the difference is that, driving
Shell, A travel switch 7, the B travel switch 8 of motor 4 are fixedly mounted on the lower surface of the top fixed platform of frame 1, active skin
Belt wheel 5, driven pulley 6 and belt 13 also are located at the lower surface of the top fixed platform of frame 1, and wherein driving motor 4 uses
Stepper motor.
At work, the shaft of driving motor 4 is rotated relative to its shell, frame 1, and shaft drives drive pulley 5
It rotates relative to frame 1, drive pulley 5 drives driven pulley 6 through chain 13 and rotates relative to frame 1, driven
Belt pulley 6 is rotated with rotating turret 2 relative to frame 1, and rotating turret 2 is turning with radiometer array 12 relative to frame 1, standing
Tested personnel rotation below 2 rotation axis of moving frame.Other component is all the same.
Using 7 driving device of the embodiment of the present invention, when being scanned to security staff, driven with using the embodiment of the present invention 5
The scan method of dynamic device is identical, it is only necessary to single pass is done to tested personnel, the difference is that, in the embodiment of the present invention 7,
When position of the tested personnel station below 2 rotation axis of rotating turret, control module 11 controls driving motor 4, and driving motor 4 drives master
Dynamic belt pulley 5 rotates.Drive pulley 5 drives driven pulley 6 to rotate by belt 13, and then opens with bogie 2, stroke
Close trigger 9, radiometer array 12 rotates.
Embodiment 8
The direct driving motor driving device connection of 8 single pass of the embodiment of the present invention as shown in Figure 8, single arm type rotating mechanism
Figure.With 5 single pass of the embodiment of the present invention, single arm type rotating mechanism gear device compared with, the difference is that, it is straight to drive
Shell, A travel switch 7, the B travel switch 8 of motor 4 are fixedly mounted on the lower surface of the top fixed platform of frame 1.
At work, the shaft of direct driving motor 4 is rotated relative to its shell, frame 1, and direct driving motor 4 is with 2 phase of rotating turret
Frame 1 is rotated, rotating turret 2 is with radiometer array 12 relative to frame 1, the quilt stood below 2 rotation axis of rotating turret
Inspection personnel rotation.Remaining part is all the same.
Using 8 driving device of the embodiment of the present invention, when being scanned to security staff, driven with using the embodiment of the present invention 1
The scan method of dynamic device is identical, it is only necessary to single pass is done to tested personnel, the difference is that, in the embodiment of the present invention 8,
When position of the tested personnel station below 2 rotation axis of rotating turret, control module 11 controls direct driving motor 4, the direct band of direct driving motor 4
Bogie 2, travel switch trigger 9, radiometer array 12 rotate.
Claims (8)
1. the driving device of single arm type millimeter wave imaging system rotating mechanism, which is characterized in that including frame, rotating turret, bearing,
Rotating drive mechanism, travel switch, travel switch trigger, position encoder device, control module, radiometer array；
The rotating drive mechanism, travel switch, bearing are mounted on the upper surface of frame roof or are suspended on frame roof
Lower surface；The bearing is used for connection framework and rotating turret；
The travel switch trigger, radiometer array are fixed on rotating turret, the travel switch trigger to rotating turret axis
The distance of line is identical at a distance from travel switch to rotating turret axis, and the travel switch trigger is rotated with rotating turret
By travel switch surface when, control module receives the signal that is triggered of travel switch；
The code device is fixed on the upper surface of frame roof or is suspended on the lower surface of frame roof, and the position
The rotation axis of code device and the rotation overlapping of axles of rotating turret；
The control module is mounted on frame, according to obtain travel switch be triggered signal and position encoder device mentions
Angle of the rotating turret of confession relative to frame, controls the operation of rotating drive mechanism.
2. the driving device of single arm type millimeter wave imaging system rotating mechanism according to claim 1, which is characterized in that institute
Stating frame includes fixed platform, vertical support rod and pedestal；
The fixed platform is surface platform or hollow out platform；It is preferred that hollow out platform；
The vertical support rod is fixed height support rod or is mechanical, electronically controlled retractable support lever.
3. the driving device of single arm type millimeter wave imaging system rotating mechanism according to claim 1, which is characterized in that institute
Stating travel switch includes A travel switch and B travel switch；Distance and the B stroke of the A travel switch to rotating turret axis
The distance for switching rotating turret axis is identical.
4. the driving device of single arm type millimeter wave imaging system rotating mechanism according to claim 1, which is characterized in that institute
Stating rotating drive mechanism includes driving motor, driving gear and driven gear；Driving motor driving driving gear drive from
Moving gear rotation；The driven gear driving rotating turret is relative to frame member；The rotating turret drives the rotation of radiometer array.
5. the driving device of single arm type millimeter wave imaging system rotating mechanism according to claim 1, which is characterized in that institute
Stating rotating drive mechanism includes driving motor, driving wheel, the transmission equipment between driven wheel and driving wheel and driven wheel；It is described
Driving motor drives driving wheel to drive driven wheel rotation by transmission equipment；The driven wheel drive rotating turret turns relative to frame
It is dynamic；The rotating turret drives the rotation of radiometer array.
6. the driving device of single arm type millimeter wave imaging system rotating mechanism according to claim 5, which is characterized in that institute
Stating transmission equipment is chain or belt；
The chain is between driving wheel and driven wheel；The driving wheel is rotated by chain-driving driven wheel；
For the belt between driving wheel and driven wheel, the driving wheel drives driven wheel to rotate by belt.
7. the driving device of single arm type millimeter wave imaging system rotating mechanism according to claim 1, which is characterized in that institute
Stating rotating drive mechanism includes direct driving motor；The direct driving motor driving rotating turret is relative to frame member；The rotating turret band
Dynamic radiometer array rotation.
8. the driving device driving method of single arm type millimeter wave imaging system rotating mechanism is any one based on claim 1 to 7
What the driving device driving device of the single arm type millimeter wave imaging system rotating mechanism described in was realized, which is characterized in that including
Following steps:
S1: control module acquires the first angle value between travel switch trigger and A travel switch；
S2: control module controls rotating drive mechanism, and rotating drive mechanism is made to drive bogie, travel switch trigger, radiation
Count array rotation, the direction of the rotation be to the direction close to A travel switch, position encoder device in the course of rotation,
According to first angle value, real-time angular and angular speed of the bogie relative to A travel switch are obtained, and then adjust rotate driving machine
The revolving speed of structure, it is ensured that bogie steadily accelerates, and revolving speed is rated speed when bogie reaches A travel switch；
S3: when travel switch trigger passes through A travel switch, the A that control module receives A travel switch is triggered signal, so
The angular speed of the rotating turret provided afterwards according to position encoder device issues sampled signal to radiometer array, acquires data, until
Sampling terminates；
S4: with the rotation of rotating turret, when travel switch trigger passes through B travel switch with rated speed, control module is received
B to B travel switch is triggered signal, while the second angle value of record position code device record, and then adjusts rotation and drive
The revolving speed of motivation structure, it is ensured that bogie steadily slows down, and until being reduced as 0, while recording the of position encoder device record at this time
Three angle values subtract second angle value with the third angle angle value and obtain differential seat angle A.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111272096A (en) * | 2020-03-09 | 2020-06-12 | 浙江云特森科技有限公司 | Three-dimensional scanning device and security inspection equipment |
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