CN205670047U - A kind of complexity stablizes sound field sound compression testing device intelligence control system - Google Patents

Abstract

This utility model one complexity stablizes sound field sound compression testing device intelligence control system, relate to a kind of automatic control system, this intelligence control system includes control centre's module and the whole device driving module being connected respectively with control centre module, the lifting of acoustic probes array and rotation drive module, acoustic probes array telescopic drive module, acoustic probes array test channel correcting drive mechanism drives module, information input display module, acoustic pressure test module, range finder module, electromagnetic detection module, with host computer interface module, accessory module, by this control system, can automatically adjust test device, automatically carry out testing the coordinate setting of device, automatically acoustic pressure is tested, automatically calculate, can accurately obtain the acoustic pressure of test point, it is fast that this utility model has test speed, calculate the advantage that data precision is high.

Description

A kind of complexity stablizes sound field sound compression testing device intelligence control system

Technical field

This utility model relates to a kind of intelligence control system, and particularly a kind of complexity that is used for stablizes sound field sound compression testing device Intelligence control system.

Background technology

Nearfield acoustic holography is the forward position of acoustic investigation in recent years, by Nearfield acoustic holography (NAH), and can be more smart Really carry out identification of sound source and location, use this technology can realize near field sound field rebuilding and visualization, therefore, NAH technology Research for suppression sound pollution tool have very great significance, in NAH technology, a key point is how to record holography Acoustic pressure distribution on face, and existing test device is the heaviest, adjustment and installation bothers the most very much, and workload is very big, needs Want substantial amounts of manpower and material resources, and test result typically can not complete at scene, needs to return to laboratory and processes, therefore needs Wanting a kind of small-sized, light-weighted novel sound compression testing device, this device, under the control of this intelligence control system, can be adjusted automatically Examination, tests, automatic result of calculation automatically, to reduce substantial amounts of manpower and material resources, alleviates the labor intensity of people, the most especially energy It is suitable for the large complicated field operation stablizing sound field, it is therefore necessary to invent a kind of new sound compression testing device and control this The intelligence control system of device.

Summary of the invention

The purpose of this utility model is to provide a kind of high accuracy, highly reliable complexity stablizes sound field sound compression testing device intelligence Control system, this intelligence control system energy Based Intelligent Control test device, automatically carry out TCH test channel correction, automatically carry out space Coordinate setting and coordinates correction, debug automatically, automatic real-time testing data, calculates test result the most in real time, such that it is able to subtract Few substantial amounts of manpower and material resources, alleviate the labor intensity of people, is particularly suitable for the large complicated on-the-spot work stablizing sound field simultaneously Industry, the most also for utilizing NAH technology to suppress noise to provide technical support in the future.

For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of complicated sound field acoustic pressure of stablizing tests dress Putting intelligence control system, the complexity that this intelligence control system is controlled is stablized sound field sound compression testing device and is included that whole device moves Drive mechanism I, acoustic probes array lifting and rotary drive mechanism II, acoustic probes array telescoping drive mechanism III, acoustics Linear transducer array IV, acoustic probes array test channel correcting drive mechanism V, sound source reference position measurement column VI, point sound source standard Sonic generator VII.This intelligence control system includes control centre's module and the attached mould being connected respectively with control centre module Block and host computer interface module, electromagnetic detection module, range finder module, acoustic pressure measuring and calculation module, the motion of whole device drive The lifting of module, acoustic probes array and rotation drive module, acoustic probes array telescopic drive module, acoustic probes array test Channel correcting drive mechanism drives module, information input display module.Described control centre's module includes Digital Signal Processing Chip DSP28335, the crystal oscillating circuit being connected with DSP28335 respectively, power circuit, data exchange wired, wireless interface circuit I_A, data exchange wired, wireless interface circuit II_A, data exchange wired, wireless interface circuit I_AAlso with acoustic pressure measuring and calculation mould Block is connected, and data exchange wired, wireless interface circuit II_AAlso it is connected with information input display module；Described accessory module includes K1, K2, K3 position signalling testing circuit being connected with DSP28335 and remote-control transmitting receive signal circuit, with upper machine interface module Exchanging information circuit including be connected with DSP28335 with host computer, electromagnetic detection module includes the electromagnetism being connected with DSP28335 Testing circuit, electromagnetic detection circuitry is connected with the electromagnetic detection mechanism on base.Described range finder module include respectively with The range laser I that DSP28335 is connected launches, reception circuit, range laser II launch, reception circuit, range laser III launch, Receiving circuit, motor D3 drive circuit, the Step motor D3 being connected with motor D3 drive circuit, Step motor D3 are logical Crossing gear to be connected with protractor sensor I, protractor sensor I is provided with range laser receptor I, also includes motor D10 Drive circuit, the motor D10 being connected with motor D10 drive circuit, motor D10 are passed with protractor by gear Sensor II be connected, protractor sensor II be provided with range laser emitter I, range laser I launch, receive circuit respectively with survey Away from generating laser I, range laser receptor I be connected, range laser II launch, receive circuit respectively with range laser emitter II, range laser receptor II be connected, range laser III launch, receive circuit respectively with range laser emitter III, range finding Laser pickoff III is connected.

Further technical scheme of the present utility model is: described whole device motion drive module include respectively with The motor D1 drive circuit that DSP28335 is connected, motor D2 drive circuit, it is connected with motor D1 drive circuit Motor D1, the motor D2 being connected with motor D2 drive circuit, motor D1 pass through gear pair A and driving Wheel is connected, and motor D2 is connected with another driving wheel by gear pair B；The lifting of described acoustic probes array and rotation drive Module includes the motor D4 drive circuit being connected respectively with DSP28335, and motor D5 drive circuit, with motor The motor D4, motor D4 that D4 drive circuit is connected is connected with chute I by gear pair C, and with motor D5 The motor D5, motor D5 that drive circuit is connected is connected with tooth bar I by gear I.

Further technical scheme of the present utility model is: described acoustic probes array telescopic drive module include with The motor D6 drive circuit that DSP28335 is connected, the motor D6 being connected with motor D6 drive circuit, stepping electricity Machine D6 is connected with tooth bar II by gear II；Described acoustic probes array test channel correcting drive mechanism drive module include with The motor D7 drive circuit that DSP28335 is connected, and the motor D7 being connected with motor D7 drive circuit, step Enter motor D7 to be connected with screw mandrel II by gear pair D, also include the motor D8 drive circuit being connected with DSP28335, and The motor D8 being connected with motor D8 drive circuit, motor D8 can cross gear pair F and be connected with screw mandrel I, also includes The motor D9 drive circuit being connected with DSP28335, and the motor D9 being connected with motor D9 drive circuit, Motor D9 is connected with screw mandrel III by gear pair E.

Further technical scheme of the present utility model is: described acoustic pressure measuring and calculation module include main control unit, Mark wave sound ripple generation unit, TCH test channel unit, data exchange unit, information display unit, main control unit is based on FPGA group Become, be positioned at the subdivision within fpga chip and include holographic acoustic pressure collecting unit, clock signal administrative unit, lock-out pulse distribution Unit, outside DDS interface unit, holographic acoustic pressure computing unit, internal control unit, each internal subdivision are by internal total Line is connected, FPGA dispensing unit that outside subdivision includes being connected with fpga chip respectively, power subsystem, keyboard interface list Unit, FPGA outside oscillation circuit unit, system reset unit；The subdivision of described standing acoustic waves generation unit includes and main control The external multiple branch circuit DDS unit that unit is connected, the multiple branch circuit comparing unit that is connected with external multiple branch circuit DDS unit, with multiple branch circuit The high speed multiple branch circuit electronic selection switch that comparing unit is connected, the list that is connected with one branch road of high speed multiple branch circuit electronic selection switch One standing acoustic waves generator or standing acoustic waves generator array, be connected with high speed another branch road of multiple branch circuit electronic selection switch Point sound source standing acoustic waves generator；The subdivision of described TCH test channel unit includes that the multiple branch circuit being connected with main control unit is high Speed A/D NE, the multiple branch circuit signal bias unit being connected with multiple branch circuit high-speed a/d NE are inclined with multiple branch circuit signal Put the multiple branch circuit signal amplification unit that unit is connected, the acoustics mouthpiece array being connected with multiple branch circuit signal amplification unit；Described The subdivision of data exchange unit include exchanging wired, radio interface unit I with main control unit conjoint data respectively_B, number According to exchanging wired, radio interface unit III_A, wherein data exchange wired, radio interface unit I_BAlso with control centre's module phase Even, data exchange wired, radio interface unit III_AAlso it is connected with information input display module；Described information display unit bag Include the LCD interface unit that is connected with main control unit, the LCD being connected with LCD interface unit.

Further technical scheme of the present utility model is: described information input display module include main control unit, Information display unit, data exchange unit, wherein main control unit forms based on fpga chip, is positioned at the subdivision within FPGA Including internal control unit, LCD output control unit, synchronised clock allocation unit, clock unit, internal element is by internal total Line is connected, power circuit unit that outside subdivision includes being connected with fpga chip, reset unit, FPGA dispensing unit, outward Portion's crystal oscillator unit, keyboard unit.Information display unit includes following subdivision, the LCD driver element that is connected with main control unit, The LCD being connected with LCD driver element.Data exchange unit includes following subdivision, the data being connected respectively with main control unit Exchange wired, radio interface unit II_B, data exchange wired, radio interface unit III_B, data exchange wired, wave point list Unit II_BAlso being connected with control centre module, data exchange wired, radio interface unit III_BWith also acoustic pressure measuring and calculation module phase Even.

Owing to using said structure, this utility model one complexity stablizes sound field sound compression testing device intelligence control system tool There is a following beneficial effect:

(1) labor intensity of people is alleviated.

This utility model one complexity stablizes sound field sound compression testing device intelligence control system, and device is in this Based Intelligent Control system Under the control of system, can automatically debug, automatically test, automatic result of calculation, it is possible to reduce substantial amounts of manpower and material resources, alleviate people Labor intensity, simultaneously can be suitable for the large complicated field operation stablizing sound field especially.

(2) accurately controlling, data precision is higher.

This utility model one complexity stablizes sound field sound compression testing device intelligence control system owing to using Based Intelligent Control, greatly The big interference reducing anthropic factor, simultaneously because have employed newer computational algorithm, so can accurately control, the data essence of gained Spending higher, result of calculation is the most accurate.

With embodiment this utility model one complexity stablized sound field sound compression testing device Based Intelligent Control below in conjunction with the accompanying drawings System is described further.

Accompanying drawing explanation

Fig. 1 is that this utility model one complexity stablizes sound field sound compression testing device intelligence control system overall structure square frame Figure；

Fig. 2 is that this utility model one complexity stablizes sound field sound compression testing device intelligence control system internal structure square frame Figure；

Fig. 3 is that this utility model one complexity stablizes sound field sound compression testing device intelligence control system acoustic pressure measuring and calculation mould Block internal structure block diagram；

Fig. 4 is that this utility model one complexity stablizes sound field sound compression testing device intelligence control system information input display mould Block internal structure block diagram；

Fig. 5 is that this utility model one complexity stablizes the sound field sound whole device of compression testing device intelligence control system from initial point Arrive the schematic diagram at holographic facet to be measured；

Fig. 6 is that this utility model one complexity stablizes sound field sound compression testing device intelligence control system main flow chart；

Fig. 7 is that this utility model one complexity stablizes sound field sound compression testing device intelligence control system acoustic probes array seat Demarcate position split flow figure；

Fig. 8 is that this utility model one complexity stablizes sound field sound compression testing device intelligence control system TCH test channel correction step Rapid split flow figure；

Fig. 9 is that this utility model one complexity stablizes sound field sound compression testing device intelligence control system acoustic pressure measuring and calculation step Rapid split flow figure；

Figure 10 is that this utility model one complexity stablizes sound field sound compression testing device intelligence control system acoustic pressure Actual measurement Step split flow figure；

Figure 11 adaptive algorithm schematic diagram；

It is stable that Figure 12 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled Sound field acoustic pressure test apparatus main body structural representation；

It is stable that Figure 13 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled Sound field sound compression testing device removes acoustic probes array test channel correcting driving mechanism structure main apparent direction schematic diagram；

It is stable that Figure 14 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled Sound field sound compression testing device removes acoustic probes array test channel correcting driving mechanism structure left view direction schematic diagram；

It is stable that Figure 15 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled Sound field sound compression testing device acoustic probes array test channel correcting driving mechanism structure schematic diagram；

It is stable that Figure 16 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled In sound field sound compression testing device acoustic probes array test channel correcting drive mechanism, motor D7 is connected side with screw mandrel II 23 Apparent direction schematic diagram；

It is stable that Figure 17 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled In sound field sound compression testing device acoustic probes array test channel correcting drive mechanism, motor D8 is connected with screw mandrel I 21 and bows Apparent direction schematic diagram；

It is stable that Figure 18 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled In sound field sound compression testing device acoustic probes array test channel correcting drive mechanism, motor D9 is connected with screw mandrel III 32 Main apparent direction schematic diagram；

It is stable that Figure 19 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled Sound field sound compression testing device sound source reference position measurement column structural representation；

It is stable that Figure 20 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled Sound field sound compression testing device standing acoustic waves generator schematic diagram；

It is stable that Figure 21 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled The raw device schematic diagram of sound field acoustic pressure test mounted point sound source standing acoustic waves；

It is stable that Figure 22 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled Sound field sound compression testing device standing acoustic waves generator array schematic diagram；

It is stable that Figure 23 is that a kind of complexity of this utility model stablizes the complexity that sound field sound compression testing device Based Intelligent Control controlled Sound field sound compression testing device another kind acoustic probes array structure schematic diagram.

Main element label declaration: 1-driving wheel, 2-base, 3-protractor sensor I, 4-range laser receptor I, 5- Electric appliance control box, 6-range laser emitter II, 7-chute I, 8-tooth bar I, 9-range laser receptor II, 10-screw hole I, 11-range laser emitter III, 12-chute II, 13-tooth bar II, 14-range laser receptor III, 15-screw hole II, 16-sound Learn the main fixed arm of linear transducer array, 17-acoustic probes array divides fixed arm, 18-acoustic probes, 19-acoustic probes array test logical Correction drive mechanism supports support, 20-square framework, 21-screw mandrel I, 22-cross bar, 23-screw mandrel II, 24-longitudinal rod, 25-standard Sound wave generator, 26-gear I, 27-gear pair A, 28-gear pair B, 29-gear II, 30-universal wheel, 31-gear pair C, 32- Screw mandrel III, 33-bearing holder (housing, cover) I, 34-gear pair D, 35-bearing holder (housing, cover) II, 36-gear pair E, 37-bearing holder (housing, cover) III, 38-gear pair F, 39-fixes bolt, 40-protractor sensor II, 41-range laser emitter device I, 42-support bar, 43-stretch, 44-sound Source reference position acoustic probes, 45-sound source reference position measurement column pedestal, 46-through hole, 47-bearing holder (housing, cover) IV, 48-bearing holder (housing, cover) V, 49-bearing holder (housing, cover) VI, 50-bearing holder (housing, cover) VII, 51-bearing holder (housing, cover) VIII, 52-chute III, 53-chute IV, 54-chute V, 55-bearing Set IX, 56 through holes, 57-electromagnetic detection mechanism, 58-acoustic tube, 59-probe fixing elastic rubber ring, 60-piezoelectric patches, 61-base Body, 62-point sound source standing acoustic waves generator.

Detailed description of the invention

It is a kind of complicated steady that a kind of complexity of this utility model stablizes that sound field sound compression testing device intelligence control system controlled Determining sound field sound compression testing device such as Figure 12 to Figure 21, this device includes drive mechanism I, the acoustic probes array that whole device moves Lifting and rotary drive mechanism II, acoustic probes array telescoping drive mechanism III, acoustic probes array IV, acoustic probes array TCH test channel correction drive mechanism V, sound source reference position measurement column VI, point sound source standing acoustic waves generator VII.Described whole dress Drive mechanism I putting motion includes that base 2, base 2 have driving wheel 1 and universal wheel 30, is provided with electrical equipment control on base 2 Case 5, electric appliance control box 5 is used for placing control circuit plate, by bearing holder (housing, cover) VIII 51 and acoustic probes battle array at base 2 centre The chute I 7 of row lifting and rotary drive mechanism II is connected；The lifting of described acoustic probes array and rotary drive mechanism II include Chute I 7, the tooth bar I 8 being contained in chute I 7, tooth bar I 8 move in chute I 7 along chute I 7, close at chute I 7 Lower end is provided with motor D5, motor D5 and is connected with tooth bar I 8 by gear I 26, and chute I 7 is additionally provided with range finding Generating laser II 6, the bottom of chute I 7 is connected with motor D4 by gear pair C31, and tooth bar I 8 upper end is near end Being provided with range laser receptor II 9 at Duan, the end of tooth bar I 8 is provided with screw hole I 10, is stretched with acoustic probes array by bolt The chute II 12 of contracting drive mechanism III is connected；Described acoustic probes array telescoping drive mechanism III, including chute II 12, dress Tooth bar II 13 in chute II 12, the left end at chute II 12 is provided with screw, is lifted with acoustic probes array by bolt And the tooth bar I 8 of rotary drive mechanism II is connected, chute II 12 left end is provided with motor D6, by gear II 29 and tooth bar II 13 is connected, and the right-hand member of tooth bar II 13 is provided with screw hole II 15, is connected by bolt fixed arm main with acoustic probes array 16, Chute II 12 left end is additionally provided with range laser emitter III 11, and tooth bar II 13 right-hand member is provided with range laser receptor III 14。

Described acoustic probes array IV includes the main fixed arm of acoustic probes array 16, the main fixed arm of acoustic probes array 16 Lower end is provided with screw, is connected by the tooth bar II 13 of bolt with acoustic probes array telescoping drive mechanism III, acoustic probes battle array Arrange main fixed arm 16 and be provided with screw, divide fixed arm 17 to be connected by bolt with a plurality of acoustic probes array, acoustic probes array The one end dividing fixed arm 17 is provided with screw, is connected by bolt fixed arm main with acoustic probes array 16, and acoustic probes array divides Fixed arm 17 is provided with the through hole of fixing acoustic probes 18, position, acoustic probes array main fixed arm 16 middle and lower part by screw with Bolt supports support 19 with acoustic probes array test channel correcting drive mechanism and is connected, and this support support, when channel correcting Connecting, when acoustic pressure is surveyed, not chord support support, position, acoustic probes array main fixed arm 16 middle and lower part is additionally provided with for detecting Whether the main fixed arm of acoustic probes array 16 supports what support 19 was connected with acoustic probes array test channel correcting drive mechanism Position sensor K1, the middle part of the main fixed arm of acoustic probes array 16 is provided with a through hole 46, solid for TCH test channel timing Determine sound source reference position acoustic probes 44, be provided with one in through hole for whether detecting sound source reference position acoustic probes 44 simultaneously It is positioned at the position sensor K3 of the through hole 46 of the main fixed arm of acoustic probes array 16.

Described acoustic probes array test channel correcting drive mechanism V includes square framework 20 and standing acoustic waves generator three Dimension motion control mechanism, is provided with chute III 52 inside about 20 two limits of square framework, described standing acoustic waves generator is three-dimensional Motion control mechanism includes the cross bar 22 making standing acoustic waves generator 25 move up and down, and the side of being embedded in is divided at cross bar about 22 two ends In the chute III 52 on about 20 two limits of type framework, in the middle part of cross bar 22, it is provided with through hole, by bearing holder (housing, cover) IV 47 and screw mandrel I 21 Being connected, screw mandrel I 21 lower end is connected with the following of square framework 20 by bearing holder (housing, cover) III 37, and passes square frame 20 times While be connected with gear pair F38, screw mandrel I 21 upper end is connected with the top of square framework 20 by bearing holder (housing, cover) V48, square framework 20 Being additionally provided with motor D8 below, be connected with screw mandrel I 21 by gear pair F38, cross bar 22 lateral center is provided with chute IV 53, It is provided with screw mandrel II 23, screw mandrel II about 23 in chute IV 53 to hold respectively by bearing holder (housing, cover) I 33, bearing holder (housing, cover) VI 49 and cross bar 22 two side ends are connected, and cross bar 22 left end is provided with motor D7, is connected with screw mandrel II 23 by gear pair D34, additionally screw mandrel II 23 also by bearing holder (housing, cover) VII 50 with control sound wave generator and make the dolly of plane motion and be connected.

Described control sound wave generator is made the dolly of plane motion and is included that longitudinal rod 24, longitudinal rod 24 one end are provided with bearing Set VII 50 is connected with the screw mandrel II 23 in cross bar 22, and the longitudinal rod 24 longitudinally central chute V 54 that is provided with is provided with in chute V 54 Screw mandrel III 32, screw mandrel III 32 two ends are connected with longitudinal rod 24 two ends by bearing holder (housing, cover) IX 55, bearing holder (housing, cover) II 35, screw mandrel III 32 is connected with standing acoustic waves generator 25 also by bearing holder (housing, cover) (being not drawn in figure), and longitudinal rod 24 front end is additionally provided with stepping electricity Machine D9, is connected with screw mandrel III 32 by gear pair E36.

Its motion of driving it is provided with near 2 times one of them driving wheels 1 of base of drive mechanism I of described whole device motion Motor D1, motor D1 be connected with this driving wheel 1 by gear pair A27, another driving wheel 1 under base 2 Side is provided with the motor D2, motor D2 that drive its motion and is connected with this driving wheel 1 by gear pair B28, base 2 one Side is additionally provided with the electromagnetic detection mechanism 57 controlling its direction of motion, and base 2 is provided with a motor D3, by gear and amount Hornwork sensor I 3 is connected, and protractor sensor I 3 is provided with range laser receptor I 4.

Described sound source reference position measurement column VI includes that base for post is measured in stretch 43, support bar 42, sound source reference position Seat 45, support bar 42 one end is connected with sound source reference position measurement column pedestal 45, and the other end is connected with stretch 43, support bar 42 Being a hollow circular cylinder, position boom 43 one end is inserted in support bar 42, can be with up-down stretch, and stretch 43 is provided with through hole 56, for stationary sound source reference position acoustic probes 44, through hole 56 is additionally provided with one for detecting sound source reference position acoustics Whether probe 44 is positioned at the position sensor K2 of sound source reference position measurement column VI, and support bar 42 is additionally provided with fastening bolt 39, For fixing stretch 42, sound source reference position measurement column pedestal 45 is provided with motor D10, motor D10 and passes through tooth Wheel is connected with protractor sensor II 40, and protractor sensor II 40 sets the generating laser I 41 of range finding, motor The motion of D10 can drive protractor sensor II 40, such that it is able to drive the generating laser I 41 of range finding to move, and laser Emitter I 41 and range laser receptor I 4, can measure sound source reference position and test at the bottom of device at acoustic holography to be measured The distance of seat 2 centers, protractor sensor I 3 and protractor sensor II 40, can be with interception；Described standing acoustic waves Generator 25 includes that matrix 61, piezoelectric patches 60, acoustic tube 58, acoustic probes fix elastic rubber ring 59, wherein piezoelectric patches 60, Extrinsic motivated signal function, produces sound wave, and acoustic tube 58 is to be made by sound-absorbing material, is possible to prevent the reflection of sound wave, and acoustics is surveyed During examination, i.e. channel correcting is enclosed within acoustic probes when surveying, and acoustic probes fixes elastic rubber ring 59, is doing acoustical testing, fixed sound Learning probe, and seal, point sound source standing acoustic waves generator 62 includes a special speaker, believes at extrinsic motivated Number effect produce sound source, standing acoustic waves generator battle array can also be used as the standing acoustic waves generator described in a kind of variation Row, such as Figure 22, so correct at TCH test channel, and correction time is shorter, but necessarily require each standing acoustic waves in array to occur The performance of device is the same, and additionally Figure 23's is another acoustic probes array structure schematic diagram in test device, this acoustics A point fixed arm for linear transducer array is spherical arc shape, is particularly suitable for the measurement of spherical wave.

As shown in Figure 1 to Figure 4 this utility model one complexity stablize sound field sound compression testing device intelligence control system include control Center module 70 and the accessory module 71 being connected with control centre module 70 respectively and host computer interface module 72, electromagnetic detection The motion of module 73, range finder module 74, acoustic pressure measuring and calculation module 75, whole device drives the lifting of module 76, acoustic probes array And rotate driving module 77, acoustic probes array telescopic drive module 78, acoustic probes array test channel correcting drive mechanism Drive module 79, information input display module 80.Described control centre's module 70 includes digital signal processing chip DSP28335, the crystal oscillating circuit being connected with DSP28335 respectively, power circuit, data exchange wired, wireless interface circuit I_A, number According to exchanging wired, wireless interface circuit II_A, wherein data exchange wired, wireless interface circuit I_AAlso with acoustic pressure measuring and calculation module (75) data in exchange wired, radio interface unit I_BBeing connected, by kind of an interface, control centre's module (70) can be with acoustic pressure Measuring and calculation module (75) carries out data exchange, is provided with a wave point the most especially, it is therefore an objective to be easy to acoustic pressure tester Calculating module (75) to be kept completely separate with control centre's module (70), it is simple to be used alone, data exchange is wired, wave point is electric Road II_AWired, radio interface unit II is exchanged with data in information input display module (80)_BIt is connected, by this interface, control Center module processed (70) can carry out data exchange with information display module (80).Described accessory module 71 includes K1, K2, K3 position Putting signal deteching circuit, they are connected with position sensor K1, K2, K3 respectively, also include that remote-control transmitting receives signal circuit, this Individual signal circuit is mainly used in the input of remote-control handle signal and output, is the input and output letter of manual actuation motor D1, D2 Number, including exchanging information circuit with host computer with upper machine interface module 72, this information circuit is mainly believed with host computer exchange Number, more higher leveled computer can be transferred data to and process, it is also possible to receive the data that host computer passes down, electromagnetism is examined Survey module 73 include electromagnetic detection circuitry, it is connected with the electromagnetic detection mechanism 57 being arranged under base 2, also include laying from Point produces the wire of electromagnetic field to terminal, when the logical upper low-frequency current of wire, will produce magnetic field, electromagnetic detection mechanism 57 basis The magnetic field detected is to control the direction of motion of whole test device, as shown in Figure 5；Described range finder module 74 include respectively with The range laser I that DSP28335 is connected launches, reception circuit, range laser II launch, reception circuit, range laser III launch, Receiving circuit, motor D3 drive circuit, the Step motor D3 being connected with motor D3 drive circuit, Step motor D3 are logical Crossing gear to be connected with protractor sensor I 3, protractor sensor I 3 is provided with range laser receptor I 4, also includes stepping Motor D10 drive circuit, the motor D10 being connected with motor D10 drive circuit, motor D10 by gear with Protractor sensor II 40 is connected, and protractor sensor II 40 is provided with range laser emitter I 41, and range laser I sends out Penetrating, receive circuit and be connected with range laser emitter I 41, range laser receptor I 4 respectively, range laser II launches, receives Circuit is connected with range laser emitter II 6, range laser receptor II 9 respectively, and range laser III launches, receives circuit It is connected with range laser emitter III 11, range laser receptor III 14 respectively, is launched by range laser I, receive electricity The distance of the whole device pedestal in place to be measured 2 and initial point (i.e. sound source reference position) can be measured in road, and protractor sensor I 3 He The cooperation of protractor sensor II 40, can measure the orientation of whole test device, can draw the whole test in place to be measured device Base 2 central point and initial point line and the angle σ in coordinate axes x-axis direction, in order to coordinate below calculates, as it is shown in figure 5, and Motor D4, motor D10, under the control of system, can pass to protractor by gear sense with rotatings respectively Device I 3, protractor sensor II40, such that it is able to adjust range laser emitter I 41, and the side of range laser receptor I 4 Position, the laser signal that range laser emitter I 41 can be made the to launch laser pickoff I 4 that found range receives；Range laser II sends out Penetrating, receive circuit and can measure the distance that acoustic probes array IV rises or falls, range laser III launches, receiving circuit can To measure acoustic probes array IV extension or the distance of retraction, the principle of laser ranging is to receive laser by laser pickoff to believe Number moment deduct the moment gained time difference of laser transmitter projects laser signal and obtain distance to be multiplied by the light velocity.

The motion of described whole device drive motor D1 drive circuit that module 76 includes being connected with DSP28335 respectively, Motor D2 drive circuit, the motor D1 being connected with motor D1 drive circuit, with motor D2 drive circuit The motor D2, motor D1 being connected is connected with driving wheel 1 by gear pair A27, and motor D2 passes through gear pair B28 It is connected with another driving wheel 1, by motor D1, the rotating of motor D2, thus drives the motion of driving wheel 1, Add the cooperation of universal wheel 30, whole test device can be driven by the direction motion of regulation；Described acoustic probes array liter Fall and rotation drive module to include that the motor D4 drive circuit being connected with DSP28335 respectively, motor D5 drive electricity Road, the motor D4 being connected with motor D4 drive circuit, motor D4 be connected with chute I 7 by gear pair C31, And the motor D5, motor D5 being connected with motor D5 drive circuit is connected with tooth bar I 8 by gear I 26, The rotating of motor D4, can drive the rotating of chute I 7, thus can drive the rotation of acoustic probes array IV, from And the orientation of acoustic probes array IV can be adjusted, and the rotating of motor D5, upper by gear I 26 band carry-over bar I 8 Rise or decline, such that it is able to adjust the height of acoustic probes array IV, thus doing standard for the location of acoustic probes array co-ordinates below Standby.

Described acoustic probes array telescopic drive module 78 includes the motor D6 drive circuit being connected with DSP28335, And the motor D6, motor D6 being connected with motor D6 drive circuit is by gear II 29 and tooth bar II 13 phase Even, the rotating of motor D6, can protract or retraction by band carry-over bar II 13, such that it is able to drive acoustic probes array IV Extension or retraction；Described acoustic probes array test channel correcting drive mechanism drives module 79 to include being connected with DSP28335 Motor D7 drive circuit, and the motor D7, motor D7 that are connected with motor D7 drive circuit pass through Gear pair D34 is connected with screw mandrel II 23, the rotating of motor D7, is driven the motion of screw mandrel II 23 by gear pair D34, Thus drive longitudinal rod 24 to move, also include the motor D8 drive circuit being connected with DSP28335, and and motor The motor D8, motor D8 that D8 drive circuit is connected can cross gear pair F38 and be connected with screw mandrel I 21, motor D8's Rotating, drives screw mandrel I 21 to move by gear pair F38, thus drives cross bar 22 to rise or fall motion, also include with The motor D9 drive circuit that DSP28335 is connected, and the motor D9 being connected with motor D9 drive circuit, step Enter motor D9 to be connected with screw mandrel III 32 by gear pair E36, the rotating of motor D9, drive screw mandrel by wheel set E36 III 32 moves, thus drives the motion of standing acoustic waves generator 25.

The mark wave sound ripple that described acoustic pressure measuring and calculation module 75 includes main control unit 7501, is connected with main control unit Generation unit 7504, TCH test channel unit 7503, data exchange unit 7505, information display unit 7502, main control unit 7501 form based on FPGA, and FPGA is the abbreviation of Field-Programmable Gate Arrayr, i.e. field-programmable gate array Row, are positioned at the subdivision within fpga chip and include holographic acoustic pressure collecting unit, clock signal administrative unit, lock-out pulse distribution Unit, outside DDS interface unit, holographic acoustic pressure computing unit, internal control unit, each internal subdivision are by bus phase Even, wherein holographic acoustic pressure collecting unit is mainly connected with TCH test channel unit 7503, is responsible for multi-channel test passage sound pressure information Gather, clock signal administrative unit, be mainly connected with outside input clock signal, clock signal is carried out frequency multiplication or frequency dividing, Producing the clock required for each subdivision, lock-out pulse Distribution Unit mainly produces various lock-out pulse, owing to there being multiple survey Ping and carry out acoustic pressure test, so when TCH test channel being carried out channel correcting and acoustic pressure actual measurement, it is desirable to each subdivision is same Time work, i.e. start time is the same, and this pace pulse Distribution Unit of will seeking common ground produces various lock-out pulses, outside DDS interface list Unit is mainly connected with mark wave sound ripple generation unit 7504, and purpose gives mark the frequency control word being the offer of internal control unit The external multiple branch circuit DDS unit of quasi-sound wave generation unit 7504 (DDS is the abbreviation of Direct Digital Synthesizer, I.e. Direct Digital Synthesizer, this unit interior view is relatively simple, and technology also goes up more perfect, the most specifically goes out), entirely Breath acoustic pressure computing unit is that the data of holographic acoustic pressure collecting unit collection are obtained in sound source radiation signal each by corresponding algorithm Individual frequency component is in the amplitude of measuring point, frequency, phase place, and internal control unit mainly completes something in main control unit 7501 Business process, be a little control centre, each subdivision of main control unit 7501 inside and outside be controlled, all of based on The interior unit of FPGA is generated by FPGA programming language VHDL language, and the subdivision outside main control unit 7501 includes respectively The outside oscillation circuit unit of the FPGA dispensing unit that is connected with fpga chip, power subsystem, unit keyboard interface, FPGA, system Reset unit, the program of unit in FPGA dispensing unit therein mainly storage generation main control unit 7501；Described The subdivision of standing acoustic waves generation unit 7504 includes the external multiple branch circuit DDS unit that is connected with main control unit 7501 and outer Put the multiple branch circuit comparing unit that multiple branch circuit DDS unit is connected, the high speed multiple branch circuit electronic selection being connected with multiple branch circuit comparing unit Switch, the single standard sonic generator being connected with one branch road of high speed multiple branch circuit electronic selection switch or standing acoustic waves generator Array, the point sound source standing acoustic waves generator being connected with high speed another branch road of multiple branch circuit electronic selection switch is the most external many Frequency control word synthesis one or more given frequencies, the width that branch road DDS unit is mainly sent here according to main control unit 7501 Value, the standard dextrorotation ripple of initial phase, multiple branch circuit comparing unit is that the dextrorotation ripple sending external multiple branch circuit DDS unit here carries out zero passage Relatively, it is therefore an objective to once correcting phase place, high speed multiple branch circuit electronics selects switch to be an on-off action, when logical to test When being corrected, high speed multiple branch circuit selects switch to connect to single standard sonic generator or standing acoustic waves generator array, works as survey During examination background noise, connecing to point sound source standing acoustic waves generator 62, when surveying as acoustic pressure, this unit is closed, and standing acoustic waves is sent out Raw device or standing acoustic waves generator array and point sound source standing acoustic waves generator 62 under additional pumping signal is made, generation sound Source；The subdivision of described TCH test channel unit 7503 includes the multiple branch circuit high-speed a/d network being connected with main control unit 7501 Unit, the multiple branch circuit signal bias unit being connected with multiple branch circuit high-speed a/d NE, it is connected with multiple branch circuit signal bias unit Multiple branch circuit signal amplification unit, the acoustics mouthpiece array that is connected with multiple branch circuit signal amplification unit, acoustics mouthpiece array Being made up of multiple acoustical testings probe, i.e. acoustic probes array IV, wherein multiple branch circuit high-speed a/d NE is mainly individual The signal of TCH test channel carries out analog digital conversion, and multiple branch circuit signal bias unit prevents from being input to multiple branch circuit high-speed a/d network Signal is negative value, carries out moving on a level to the signal of TCH test channel input, and multiple branch circuit signal amplification unit is logical to test The small-signal that the acoustics mouthpiece array in road is sent here is amplified；The subdivision of described data exchange unit 7505 include with Main control unit 7501 conjoint data exchanges wired, radio interface unit I respectively_B, data exchange wired, radio interface unit III_A, wherein data exchange wired, radio interface unit I_BWired with the exchange of the data of control centre module 70, wave point is electric Road I_ABeing connected, data exchange wired, radio interface unit III_AWired, wireless with data exchange in information input display module 80 Interface unit III_BBeing connected, in order to modules can be separated, data exchange here have employed two kinds of interfaces, and one is wireless Interface, one is wireline interface, can select according to on-the-spot needs；Described information display unit 7502 includes and master control Unit processed is connected LCD interface unit, and the LCD being connected with LCD interface unit, this LCD are exclusively for acoustic pressure measuring and calculation module 75 and set, display acoustic pressure collection and calculate information, it is simple to information when this module is used alone shows, this information is also certainly Wired, radio interface unit III can be exchanged by data_A, shown by information input display module 80.

Described information input display module 80 includes that main control unit 8001, the information that is connected with main control unit 8001 are aobvious Showing unit 8002, data exchange unit 8003, wherein main control unit 8001 forms based on fpga chip, unit bag in it Including internal control unit, LCD output control unit, synchronised clock allocation unit, clock unit, internal control unit is mainly Controlling management role, be controlled each subdivision of main control unit (8001), LCD output control unit is mainly outside LCD driver element be managed, clock unit is Clock management, and clock distribution unit is to produce lock-out pulse step by step, internal Unit is connected by internal bus, and interior unit is generated by FPGA programming language VHDL language, outside subdivision include with Fpga chip be connected power circuit unit, reset unit, FPGA dispensing unit, external crystal-controlled oscillation unit, keyboard unit.Information shows Show that unit (8002) includes following subdivision, the LCD driver element being connected with main control unit 8001 and LCD driver element phase LCD even.Data exchange unit 8003 includes that following subdivision, the data being connected with main control unit (8001) respectively exchange have Line, radio interface unit II_B, data exchange wired, radio interface unit III_B, wherein data exchange wired, radio interface unit II_BWired, wireless interface circuit II is exchanged with data in control centre module 70_BBeing connected, data exchange wired, wave point list Unit III_BWired, radio interface unit III is exchanged with the data in acoustic pressure measuring and calculation module 75_AIt is connected, is separately provided this letter Breath input display module 80 purpose be that this module can be independent, especially by wave point, this module and other Module there is not wired connection, can take on hand, it is simple to the input of data and the display of information.

The one complexity of this utility model stablize sound field sound compression testing device intelligence control system control process such as Fig. 6 institute Show, system electrification, be first controlled center module 70 and initialize, then sentence initialization the most successful, as unsuccessful, then judge Whether time-out, if the most overtime, then continues to judge to initialize the most successfully, such as time-out then display system mistake, if be initialized to Merit, then control centre's module 70 sends initialization command to each sub-module and sends response confirmation signal, then judges whether to receive To whole answer signals, as the most all received, then judge to initialize whether time-out, such as time-out, then display system mistake, if not Time-out, then continue to determine whether to receive whole answer signal, as received, then carries out entrance system ready, can carry out acoustic pressure survey Examination, provides " please input sound source reference position and the prompting of acoustic holography face to be measured center point coordinate ", then determines whether Position machine coordinate data input, if it did not, be judged as whether information display input module 80 has coordinate to input, if any, then enter Acoustic probes array co-ordinates location split flow, if it has not, then continue to judge whether host computer has coordinate data to input, if upper Machine has coordinate to input, then also into linear transducer array coordinate setting split flow, after acoustic probes array co-ordinates location split flow terminates, Then enter acoustic pressure measuring and calculation split flow, after acoustic pressure measuring and calculation split flow terminates, then judge whether test assignment terminates, such as knot Bundle, then task terminates, and enters next measuring point as also having, then returns to judge whether host computer has coordinate data to input, enters Test assignment next time.

Described acoustic probes array co-ordinates location split flow controls process such as Fig. 7, is first sound source reference position and to be measured The coordinate input of amount center, acoustic holography face, is obtained in place to be measured device pedestal 2 plus the size of device by the two coordinate The coordinate at heart point place, then judges whether sound source reference position measurement column is positioned at sound source reference position, and if not, being given " please Sound source reference position measurement column is placed in sound source reference position " information, simultaneously again judge that sound source reference position is measured Whether post is positioned at sound source reference position, in this way, then judges from sound source reference position to the coordinate at base 2 central point place to be measured Between electromagnetism thin wire whether set up, the information of " please money lay electromagnetism thin wire " if it has not, be then given, as set up Good, please judge whether whole test device is positioned at sound source reference position, if not, utilize remote manipulation handle input signal Drive stepping motor D1, D2, drive whole test device to arrive position near acoustic holography face to be measured, in this way, then judgement is No have remote-control handle signal to input, and if any then utilizing remote manipulation handle input signal drive stepping motor D1, D2 makes whole survey Electricity testing device arrives position near acoustic holography face to be measured, if it has not, the signal that system is then returned according to electromagnetic detection module feedback Automatically drive motor stepping D1, D2, make whole test device arrive position near acoustic holography face to be measured, then drive stepping electricity Machine D3, D10 drive protractor sensor I 3, protractor sensing II 40 to rotate, and the range laser on protractor sensing I 3 receives Find range away from generating laser I 41 all concomitant rotation on device I 4, protractor sensor II 40, make range laser emitter I 41 Signal can be received by range finding laser pickoff I 4, measure sound source reference position and center, whole device chassis 2, place to be measured Distance, adds protractor sensor I 3, the angle of protractor sensor II 40, measures orientation, add sound source reference position Coordinate and the size of device, calculate acoustic holography center to be measured coordinate by space coordinate transformation formula, then judge Acoustic holography center to be measured coordinate and setting identical, as identical, terminate, as differed, then by driving stepping electricity Machine D3 adjusts the orientation of acoustic probes array IV, by the height of drive stepping motor D4 regulation acoustic probes array IV, passes through The length of drive stepping motor D5 regulation acoustic probes array extension retraction, is corrected coordinate, if also not reaching requirement, The most suitably corrected again by drive stepping motor D1, D2, make center, acoustic holography face to be measured coordinate and set coordinate Identical, while motor D4, D5 work, range laser II launches, receives circuit, range laser III transmitting, receives electricity Road also begins to work, measures height, length.

Described pressure measuring and calculation step split flow such as Fig. 9, enters after acoustic probes array co-ordinates location split flow terminates This flow process, the first step of this flow process is to enter TCH test channel aligning step split flow, and TCH test channel aligning step split flow terminates After, high speed multiple branch circuit selects switch to point to point sound source standing acoustic waves generator 62, then judges sound source reference position probe 44 Whether return to sound source ginseng position measurement post 45, if not, provide " please put back to " information, in this way, then main control unit The internal control unit of 7501 sends a standard frequency control word, and this signal produces a standing acoustic waves signal, and this signal is(herein for being easy to illustrate not carry out signal power amplification, signal amplifies, and simply having added one is Number, algorithm is the same, and in formula, k is wave number, and r is the distance of transaudient propagation), then start f+1 road TCH test channel, wherein f Road connects sound source reference position TCH test channel, and each road TCH test channel tests N number of data, then uses standing acoustic waves signalCentrifugal pump as the reference input of adaptive algorithm, standing acoustic waves signal adds ambient noise signal y=u+ The centrifugal pump of noise, i.e. each TCH test channel accept and believe the signal source signal input as adaptive algorithm of output, determine step The long initial value with adaptive algorithm, the error signal utilizing adaptive algorithm formula to draw is exactly the background of each TCH test channel Centrifugal pump noise of noise noise_lN (), wherein l is 0 to be 0 to N to f, n, is then shut off DDS output channel, carries out acoustic pressure real Surveying, under the work of lock-out pulse, each TCH test channel gathers p group data x_fκ(n), each group of N number of data, if this p group Data are measurement p gained, then uu=0 under equivalent environment, if measuring p group data in once gathering, then and uu=1, its Middle F is 1 to be 0 to N to p, n in the range of 0-f, κ, and subsequently into actual measurement acoustic pressure calculation process, actual measurement acoustic pressure calculation process terminates After, then acoustic pressure measuring and calculation split flow terminates.

Described TCH test channel aligning step split flow such as Fig. 8, the control process steps of this flow process is: input acoustic probes battle array The line number of row and columns and number f+1 of acoustic probes, and need frequency number h of correction, juxtaposition variable F=f, τ= H, then judges whether sound source reference position test probe 44 is positioned at demarcation at through hole 46, if not, be given and " please be placed in demarcation Place " information, in this way, then criterion letter sound wave generator 25 whether be positioned at initial position, if not, pass through acoustics Linear transducer array TCH test channel correction drive mechanism V makes standing acoustic waves generator 25 be positioned at initial position, judges the most again, in this way, Then the internal control unit of acoustic pressure measuring and calculation module 75 main control unit 7501 is to outside DDS interface unit, TCH test channel list Unit 7503, standing acoustic waves generation unit 7504 correlation unit such as grade sends response confirmation signal, then judges whether to receive all should Answer signal, if not, judge whether repeatedly to retransmit, the most repeatedly retransmit, then provide that " acoustic pressure measuring and calculation module (75) goes out Wrong " information, detect whether the most again to receive and all confirm answer signal, in this way, then whether determination frequency number τ variable Being 0 (whether frequency number to be corrected tests), as 0, then flow process terminates, as being not equal to 0, F=F-1, and τ=τ-1, press The frequency of regulation sends the τ frequency control word in advance, i.e. produces a standard dextrorotation signal(this is one and answers Signal, the imaginary part taking it is exactly dextrorotation signal, expression formula same meaning similar up and down), then judge whether F is-1, as For-1, then returning to detect whether τ is 0, if not being 0, then high speed multiple branch circuit selects switch to connect to standing acoustic waves generator 25, with Time acoustic probes array test channel correcting drive mechanism V make the raw device 25 of standing acoustic waves be enclosed within the acoustic probes on F road, start The correction of F road TCH test channel, under lock-out pulse synchronizes, gathers N number of data, draws signalThis Discrete data u_FN standard signal that () provides with given frequency control word(the raw device of standing acoustic waves is to be directly sleeved on In acoustic probes, distance r of acoustic propagation is approximately equal to 0, the most signal is not amplified, so acoustic signals is identical with excitation, If signal is exaggerated, adding a correction factor, algorithm is the same, because channel below amplitude correction coefficient can be to width Value is corrected, and does not accounts for the Phase delay of piezoelectric patches 60 in sound wave generator 25 here, because after signal stabilization, this Phase angle is the least, and can be according to piezoelectric formula it can be calculated that can be compensated by circuit, it is also possible to pass through Algorithm compensates, and herein for being easy to explanation, does not first consider this Phase delay, additionally because all of phase angle is general all One relative phase angle, the i.e. phase angle of relative sound source reference position, the phase angle i.e. utilizing each TCH test channel to try to achieve subtracts Go to the phase angle of sound source ginseng position measurement passage, owing to being same piezoelectric patches, so Phase delay produced by piezoelectric patches is just Eliminate) discrete signal L_τN two signals are carried out, from composing, i.e. drawing the delay phase place of this TCH test channel by () cross-spectrum simultaneouslyWherein F is 0 to f, T is the cycle, μ For signal delay time, acos represents remaining rotation of negating, and f road is the sound source TCH test channel with reference to cursor position, its delay phase place ForPassage amplitude rectification is that coefficient isτ is 1 to h.

Described acoustic pressure Actual measurement step split flow such as 10, this Row control calculation procedure is: actual measurement acoustic pressure calculates stream Journey starts, and inputs uu, noise_l(n), x_FκN (), wherein l, F is 0 to be 1 to p to f, κ, then with the back of the body of each road TCH test channel Scape noise noise_lN () is reference signal input, with x_FκN () inputs as source signal, determine adaptive step-length, with weights Initial value, utilizes the error signal e (n) that adaptive algorithm is obtained, and obtains the sound source radiation signal that each road TCH test channel detects s_FκN () (this signal is peeled off ambient noise signal, becomes the cleanest signal), wherein F is 0 to be 1 to p to f, κ, so Afterwards first group of data of each road TCH test channel collection are carried out fast Fourier transform i.e. h_F1=fft (s_F1(n)), then look for Go out the frequency corresponding to frequency domain data medium wave peak and amplitude substantially estimated value, then utilize power enhanced that frequency spectrum is carried out school Just, formula i.e. it is utilized respectively:

$\begin{array}{cc}{w}_{F\mathrm{\τ}}=\underset{k=\mathrm{\τ}-M}{\overset{\mathrm{\τ}+M}{\Σ}}k.|X_k{|}^2/\underset{k=\mathrm{\τ}-M}{\overset{\mathrm{\τ}+M}{\Σ}}{X}_k*\mathrm{\Δ}w& A_{F\mathrm{\τ}}={\mathrm{\δ}}_{F\mathrm{\τ}}\sqrt{K_t\underset{k=\mathrm{\τ}-M}{\overset{\mathrm{\τ}+M}{\Σ}}{X}_K^2}\end{array}.$

Frequency is corrected with amplitude, whereinM typically takes 1 or 2, X_kFor fast Fourier transform intermediate frequency spectrum The complex value spectrum of k location, K in figure_tFor energetic coefficient of restitution, K_tChoose typically the most relevant with choosing of window letter, during with Hanning window Typically take 8/3, δ_FτThe passage amplitude correction coefficient that split flow is tried to achieve is corrected for passage amplitude correction coefficient, i.e. TCH test channel, from And try to achieve amplitude A of sound source spoke signal frequency component sound wave on each TCH test channel_FτWith frequency w_Fτ, wherein F is 0 to arrive F, τ are 1 counting to the calculating of m, N fast Fourier, utilize the frequency tried to achieve and amplitude logical to each test after this step bundle M the frequency component in road asks phase angle, and the frequency i.e. utilizing each passage to obtain forms m simple signal with amplitude, i.e.This signal discrete turns to g_Fτ(n) then this m simple signal respectively with the p group data cross-spectrum of this passage, Utilizing signal in orthogonal is 0, and energy principle of invariance, it is possible to try to achieve this TCH test channel under this frequency acoustic signals at measuring point P group phase angle:

Wherein F is 0 to be 1 to be 1 to m to p, τ to f, κ.Then variable uu is judged, if uu=0, thenWherein F is 0 to be 1 to be 1 to m to p, τ to f, κ, if uu ≠ 0, then Wherein F be 0 to f, κ be 1 to p, τ be 1 to m, Δ t be p group data adjacent sets data set accept and believe interval, then this phase angle+ TCH test channel phase compensation angle, just obtains each frequency component measuring point true phase angle in acoustic radiation signal, i.e.Ψ_fτFor the phase angle of sound source reference position TCH test channel, wherein F is 0 to be 1 to m to f, τ, as obtained 0 It is positioned at the phase angle of sound source reference position to f-1 road TCH test channel mutually, sound can be deducted with the phase angle of each road TCH test channel The phase angle of source reference position, this phase angle is unrelated with the time, only with the distance dependent of sonic propagation, it may be assumed that ∏_Fτ=ψ x τ- ψ_fτDemand perfection the phase place of each frequency component sound wave of portion's TCH test channel, frequency, amplitude: ∏ the most entirely_Fτ、w_Fτ、A_FτWherein F is 0 It is that above 1 to m, TCH test channel aligning step split flow and acoustic pressure Actual measurement step split flow have all used variable τ to f-1, τ, Wherein channel correcting flow process τ is 1 to h, and in acoustic pressure Actual measurement step split flow, τ is 1 to m, but measures in reality Time, take h=m.

Described adaptive algorithmic formula is:In formulaλ (n) is adaptive Answering weights signal and the step size signal of algorithm, e (n) is error signal, and u (n) is source input signal, as shown in figure 11.

Claims (5)

1. a complexity stablizes sound field sound compression testing device intelligence control system, it is characterised in that this intelligence control system is controlled Complexity stablize drive mechanism I, the lifting of acoustic probes array that sound field sound compression testing device includes that whole device moves and rotate Drive mechanism II, acoustic probes array telescoping drive mechanism III, acoustic probes array IV, acoustic probes array test passage school Positive drive mechanism V, sound source reference position measurement column VI, point sound source standing acoustic waves generator VII；This intelligence control system includes control Center module processed (70) and the accessory module (71) being connected with control centre module respectively and host computer interface module (72), electricity The motion of Magnetic testi module (73), range finder module (74), acoustic pressure measuring and calculation module (75), whole device drives module (76), sound Learn linear transducer array lifting and rotate driving module (77), acoustic probes array telescopic drive module (78), the survey of acoustic probes array Ping channel correction drive mechanism and drive module (79), information input display module (80)；Described control centre's module (70) bag Including digital signal processing chip DSP 28335, the exchange of the crystal oscillating circuit being connected with DSP28335 respectively, power circuit, data has Line, wireless interface circuit I_A, data exchange wired, wireless interface circuit II_A, data exchange wired, wireless interface circuit I_AAlso with Acoustic pressure measuring and calculation module (75) is connected, and data exchange wired, wireless interface circuit II_AAlso with information input display module (80) It is connected；Described accessory module (71) includes that K1, K2, K3 position signalling testing circuit being connected with DSP28335 and remote-control transmitting connect Receiving signal circuit, include that with upper machine interface module (72) be connected with DSP28335 exchanges information circuit with host computer, electromagnetism is examined Survey the electromagnetic detection circuitry that module (73) includes being connected, electromagnetic detection circuitry and the electromagnetic detection on base (2) with DSP28335 Mechanism (57) is connected, and range finder module (74) includes that the range laser I being connected with DSP28335 respectively launches, receives circuit, range finding Laser II launches, receives circuit, range laser III transmitting, receives circuit, motor D3 drive circuit, with motor D3 The Step motor D3, Step motor D3 that drive circuit is connected is connected with protractor sensor I (3) by gear, and protractor senses Device I (3) is provided with range laser receptor I (4), also includes motor D10 drive circuit, with motor D10 drive circuit The motor D10, motor D10 being connected is connected with protractor sensor II (40) by gear, protractor sensor II (40) be provided with range laser emitter I (41), range laser I launches, receive circuit respectively with range laser emitter I (41), range laser receptor I (4) be connected, range laser II launch, receive circuit respectively with range laser emitter II (6), Range laser receptor II (9) be connected, range laser III launch, receive circuit respectively with range laser emitter III (11), Range laser receptor III (14) is connected.

2. a kind of complexity as claimed in claim 1 stablizes sound field sound compression testing device intelligence control system, it is characterised in that institute Stating the motion of whole device drives module (76) to include motor D1 drive circuit, the motor being connected respectively with DSP28335 D2 drive circuit, the motor D1 being connected with motor D1 drive circuit, the step being connected with motor D2 drive circuit Entering motor D2, motor D1 to be connected with driving wheel (1) by gear pair A (27), motor D2 passes through gear pair B (28) It is connected with another driving wheel 1；Described acoustic probes array lifting and rotate drive module (77) include respectively with DSP28335 The motor D4 drive circuit that is connected, motor D5 drive circuit, the stepping being connected with motor D4 drive circuit is electric Machine D4, motor D4 are connected by gear pair C (31) and chute I (7), and the step being connected with motor D5 drive circuit Enter motor D5, motor D5 to be connected by gear I (26) and tooth bar I (8).

3. a kind of complexity as claimed in claim 1 stablizes sound field sound compression testing device intelligence control system, it is characterised in that institute State the motor D6 drive circuit that acoustic probes array telescopic drive module (78) includes being connected with DSP28335, with stepping electricity The motor D6, motor D6 that machine D6 drive circuit is connected is connected by gear II (29) and tooth bar II (13)；Described sound Learn the motor D7 driving that linear transducer array TCH test channel correction drive mechanism drives module (79) to include being connected with DSP28335 Circuit, and the motor D7, motor D7 being connected with motor D7 drive circuit is by gear pair D (34) and screw mandrel II (23) is connected, and also includes the motor D8 drive circuit being connected with DSP28335, and with motor D8 drive circuit The motor D8, motor D8 being connected can cross gear pair F (38) and be connected with screw mandrel I (21), also includes and DSP28335 phase Motor D9 drive circuit even, and the motor D9, motor D9 being connected with motor D9 drive circuit is logical Cross gear pair E (36) and screw mandrel III (32) to be connected.

4. a kind of complexity stablizes sound field sound compression testing device intelligence control system, it is characterised in that described Acoustic pressure measuring and calculation module (75) include main control unit (7501), mark wave sound ripple generation unit (7504), TCH test channel list Unit (7503), data exchange unit (7505), information display unit (7502), main control unit (7501) forms based on FPGA, It is positioned at the subdivision within fpga chip and includes holographic acoustic pressure collecting unit, clock signal administrative unit, lock-out pulse distribution list DDS interface unit first, outside, holographic acoustic pressure computing unit, internal control unit, each internal subdivision passes through internal bus Be connected, FPGA dispensing unit that outside subdivision includes being connected with fpga chip respectively, power subsystem, unit keyboard interface, FPGA outside oscillation circuit unit, system reset unit；The subdivision of described standing acoustic waves generation unit (7504) includes with main The external multiple branch circuit DDS unit, more single with the multiple branch circuit that external multiple branch circuit DDS unit is connected that control unit (7501) is connected Unit, the high speed multiple branch circuit electronic selection switch being connected with multiple branch circuit comparing unit and high speed multiple branch circuit electronic selection switch one Branch road be connected single standard sonic generator or standing acoustic waves generator array, with high speed multiple branch circuit electronic selection switch another Point sound source standing acoustic waves generator (62) that individual branch road is connected；The subdivision of described TCH test channel unit (7503) includes with main The multiple branch circuit high-speed a/d NE that control unit (7501) is connected, the multiple branch circuit that is connected with multiple branch circuit high-speed a/d NE Signal bias unit, the multiple branch circuit signal amplification unit being connected with multiple branch circuit signal bias unit and multiple branch circuit signal amplify single The acoustics mouthpiece array that unit is connected；The subdivision of described data exchange unit (7505) includes and main control unit respectively (7501) conjoint data exchanges wired, radio interface unit I_B, data exchange wired, radio interface unit III_A, wherein data are handed over Change wired, radio interface unit I_BAlso being connected with control centre's module (70), data exchange wired, radio interface unit III_AAlso Being connected with information input display module (80), described information display unit (7502) includes being connected with main control unit (7501) LCD interface unit, the LCD being connected with LCD interface unit.

5. a kind of complexity stablizes sound field sound compression testing device intelligence control system, it is characterised in that described Information input display module (80) include main control unit (8001), information display unit (8002), data exchange unit (8003), wherein main control unit (8001) forms based on fpga chip, is positioned at the subdivision within FPGA and includes internal control Unit, LCD output control unit, synchronised clock allocation unit, clock unit, internal element is connected by internal bus, outside Subdivision include being connected with fpga chip power circuit unit, reset unit, FPGA dispensing unit, external crystal-controlled oscillation unit, Keyboard unit, information display unit (8002) includes following subdivision, drives including the LCD being connected with main control unit (8001) Unit, the LCD being connected with LCD driver element, data exchange unit (8003) includes following subdivision, respectively with main control unit (8001) data being connected exchange wired, radio interface unit II_B, data exchange wired, radio interface unit III_B, data are handed over Change wired, radio interface unit II_BAlso being connected with control centre's module (70), data exchange wired, radio interface unit III_BAlso It is connected with acoustic pressure measuring and calculation module (75).