CN105911147A - Intelligent sound wave scanning detector and detection method - Google Patents
Intelligent sound wave scanning detector and detection method Download PDFInfo
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- CN105911147A CN105911147A CN201610507749.4A CN201610507749A CN105911147A CN 105911147 A CN105911147 A CN 105911147A CN 201610507749 A CN201610507749 A CN 201610507749A CN 105911147 A CN105911147 A CN 105911147A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/011—Velocity or travel time
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0232—Glass, ceramics, concrete or stone
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/102—Number of transducers one emitter, one receiver
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- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Acoustics & Sound (AREA)
- Computing Systems (AREA)
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- Signal Processing (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses an intelligent sound wave scanning detector which comprises a collecting device and a mainframe, wherein the collecting device comprises a transducer, a sound wave transmitting and collecting circuit, a microcontroller, an external triggering device, a first wireless device and a distance measuring device; the transducer, the sound wave transmitting and collecting circuit and the microcontroller are connected in sequence; the external triggering device and the first wireless device are respectively connected with the microcontroller; the mainframe comprises an IPC (Industrial Personal Computer), a distance measuring receiver and a second wireless device; and the IPC is respectively connected with the distance measuring device and the second wireless device. According to the invention, the displacement value of the collecting device can be obtained by the distance measuring device, and when reaching sampling distance, the microcontroller sends out a collecting command to the transducer, and the transducer automatically collects sound wave data at the sampling position and uploads the data to the IPC, thus realizing detection and evaluation on the strength and defects of a detected objected at each sampling distance site, and having the advantages of being low in cost, high in efficiency, high in precision and good in stability.
Description
Technical field
The present invention relates to engineering geophysics structure detection technical field, particularly to a kind of wireless automatic two dimension
Contactless quick sonic test instrument and method of testing.
Background technology
Supersonic wave test instrument calls again ripple tester, for test concrete, rock, marble and other
The propagation time of the longitudinal ultrasonic ripple of the propagation in nonmetallic materials and speed, by these data, it is possible to comment
Estimate material and the intensity of structure and quality.The principle of this method be make use of the ultrasonic velocity of material and its
Relation between physical characteristic.Currently used supersonic reflectoscope, excitation power supply and ultrasonic data acquisition
System integration, is arranged by computer, is gathered to data with controlling parameter, and mode of operation can be selected for touch screen
Operation, function key operation and mouse action, improve testing efficiency.Such as, TH402 detector is measured exactly
Automatically launch ultrasound wave in some position with recording and gather the ultrasound wave returned in concrete, by dividing
The waveform of ultrasound wave, velocity of wave and scattering figure that analysis receives are to judge the defect situation of this position.Sound wave
The application of tester is quite varied.
Utilize the structure of sonic wave detector detection detectable substance, first have to determine the position needing to carry out detecting.Existing
Some sonic wave detectors, during detection, need first anyhow to connect up on the surface of detectable substance, manually
Measure the particular location of these test points, determine a test point at interval of identical distance, then each
Launch at test point and gather sound wave.First manual measurement determines various point locations, then detection device property again
Gather the sonic data of these positions, the method troublesome poeration, sufficiently large at detectable substance surface area especially
In the case of, need to expend considerable time and effort.
Luo Yanyan, Hao Jie are at patent " electric connector contact method for testing pressure based on ultrasound wave and tester "
In without reference to the device being automatically positioned, model army in patent " ultrasound probe tester " also without reference to
The device being automatically positioned.Qi Naiming, Xu are in patent " non-extensible guide two-dimension moving object in plane or curved surface
Displacement and the non-contact measurement method of attitude " in the two-dimentional non-contact measurement that relates to mainly use two
Individual photoelectric position sensor obtains displacement information, and structure is complicated, and the calculating of employing is the most complicated, and it
The most this measurement is not applied in sonic test instrument.Zou Qifeng is at patent " a kind of two-dimension displacement test dress
Put " in the data that obtain of the planar displacement measurement that relates to show in charactron, be unfavorable for the preservation of data,
The track of motion is the most unclear, the most intuitively, is also applied not in sonic test instrument.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides the intelligent sound wave that a kind of low cost, work efficiency are high
Scanning detector, and a kind of intelligent sound wave scanning detection method is provided.
The present invention solves the technical scheme of the problems referred to above: a kind of intelligent sound wave scanning detector, including gathering
Device and main frame, described harvester includes transducer, acoustic emission and Acquisition Circuit, microcontroller, outer
Trigger device, first wireless device and range unit, described transducer, acoustic emission and Acquisition Circuit, micro-
Controller is sequentially connected with, and external trigger device, first wireless device are connected with microcontroller respectively, described main frame
Including industrial computer, range finding receptor and second wireless device, industrial computer respectively with range finding receptor, the second nothing
Line apparatus is connected, and industrial computer receives, by range finding receptor, the distance signal that range unit sends, and industrial computer leads to
Cross second wireless device and microcontroller implementation wireless telecommunications.
In above-mentioned high efficiency smart ultra sonic scanner detector, described range unit includes light emitting diode, battery of lens
Part, optical sensor, microprocessor and radio-frequency module, light emitting diode, lens subassembly, optical sensor
Setting gradually, the signal output part of optical sensor is connected with microprocessor, microprocessor and radio-frequency module phase
Even, signal is sent into main frame.
In above-mentioned high efficiency smart ultra sonic scanner detector, described transducer includes one for launching sound wave letter
Number transmitting terminal and one for receiving the acoustic signals going back to detectable substance surface from detectable substance internal reflection
Receiving terminal.
In above-mentioned high efficiency smart ultra sonic scanner detector, described first wireless device and second wireless device use
WIFI module.
In above-mentioned high efficiency smart ultra sonic scanner detector, described microcontroller is single-chip microcomputer.
A kind of intelligent sound wave scanning detection method, comprises the following steps:
Step one: industrial computer pre-sets sampled distance；
Step 2: the hand-held harvester of operator moves on the surface of detectable substance, and range unit is measured in real time and adopted
The two-dimensional coordinate value of acquisition means, and it is sent to industrial computer, industrial computer carries out process to two-dimensional coordinate value and is adopted
Sample distance, and judge whether sampled distance reaches preset value, if, it is determined that this position is sampling location,
Carry out next step；
Step 3: operator stops mobile sampling apparatus, after transducer preparation is in place, starts external trigger dress
Putting to one signal of microcontroller, this signal is sent into industrial computer by microcontroller, and industrial computer receives this letter
By second wireless device, first wireless device, the order gathering sound wave is sent to microcontroller immediately after number；
Step 4: microcontroller sends acquisition and automatically gathers at sampling location to transducer, transducer
Sonic data；
Step 5: the acoustic signals that transducer is gathered by microcontroller passes through first wireless device, the second nothing
Line apparatus is uploaded to industrial computer；
Step 6: industrial computer reads in real time, shows, analyzes the acoustic signals gathered, and by Two-dimensional Distance
Preserve from the signal gathered；
Step 7: circulation step two to step 6, obtains each sampled distance position, detectable substance surface by scanning
Put the sonic data at place；
Step 8: industrial computer, according to the sonic data gathered, will analyze each sampled distance position, detectable substance surface
Put intensity and the defect at place.
The beneficial effects of the present invention is: the present invention provides a kind of intelligent sound wave scanning detector, by range finding
Device, makes the harvester of ultra sonic scanner detector in moving process, it is possible to automatically keep track of its two dimension
Coordinate, processes with this and is calculated shift value, pre-sets sampled distance in industrial computer, when reaching
During to sampled distance, industrial computer can send system beep sound and give prompting, after hearing prompting, and harvester
Stop mobile, after transducer preparation is in place, start external trigger device, to one signal of microcontroller, micro-
This signal is sent into industrial computer by controller, industrial computer receive after this signal immediately by second wireless device,
The order gathering sound wave is sent to microcontroller by first wireless device, and microcontroller sends acquisition to changing
Energy device, transducer automatically gathers sonic data at sampling location, and in real time data is uploaded to industrial computer,
Industrial computer receives, shows, processes, preserves collected acoustic signals, it is achieved in each sampled distance position
Put place's intensity to detectable substance and the check and evaluation of defect, it is achieved thereby that measurement analysis device and sampling apparatus
Separate and measure the automatization of process, high efficiency, there is low cost, efficiency height, precision height, good stability
Advantage.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of intelligent sound wave scanning detector of the present invention.
Fig. 2 is the structural representation of the range unit in Fig. 1.
Fig. 3 is the partial circuit schematic diagram of the wireless device in Fig. 1.
Fig. 4 is the workflow diagram of ultra sonic scanner detection method of the present invention.
Fig. 5 is the location algorithm flow chart of range finding in ultra sonic scanner detection method of the present invention.
Fig. 6 is the host computer flow chart of range finding in ultra sonic scanner detection method of the present invention.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the invention discloses a kind of intelligent sound wave scanning detector, including harvester 1 He
Main frame 2, described harvester 1 includes transducer, acoustic emission and Acquisition Circuit, microcontroller, external trigger
Device, first wireless device and range unit, described transducer, acoustic emission and Acquisition Circuit, microcontroller
Device is sequentially connected with, and external trigger device, first wireless device are connected with microcontroller respectively, and microcontroller is single
Sheet machine；Described main frame 2 includes industrial computer, range finding receptor and second wireless device, industrial computer respectively with survey
Away from receptor, second wireless device be connected, industrial computer by range finding receptor receive range unit send away from
From signal, industrial computer is by second wireless device and microcontroller implementation wireless telecommunications.Transducer is used for basis
Automatically gather sonic data at the sampled distance set in industrial computer, and be sent to industrial computer；Transducer
Including a transmitting terminal and a receiving terminal, transmitting terminal is used for launching acoustic signals, and receiving terminal is used for receiving
The acoustic signals on detectable substance surface is returned in Autonomous test thing internal reflection, and the acoustic signals collected is sent into micro-control
Device processed.
Range unit is for the two-dimensional coordinate value of measurement harvester 1 in real time, and is sent to industrial computer.Such as Fig. 2
Shown in, described range unit includes light emitting diode, lens subassembly, optical sensor, microprocessor and penetrates
Frequency module, light emitting diode, lens subassembly, optical sensor set gradually, and the signal of optical sensor is defeated
Going out end to be connected with microprocessor, microprocessor is connected with radio-frequency module.The range unit luminescence two by bottom
Light with directive bottom surface, 30 degree of angles, then is fed back to optics sense by the refraction of bottom surface through lens subassembly by pole pipe
Answering on device, optical sensor shoots continuous print microcosmic surface image, by the dsp chip in optical sensor
Relative analysis before and after every pictures is processed, to determine the direction and distance, micro-process that range unit moves
Displacement information is passed to the range finding receptor of main frame 2 in real time by device by radio-frequency module.Range unit is by 5v
DC power supply is powered, and obtains stable 3.3V voltage through voltage conversion chip and peripheral circuit.Normally
After power supply, range unit begins to work.
First wireless device and second wireless device are E50-TTL-100, use STM32 development board, are
The wireless transport module of a 100mW, is operated in 148-173.5MHz frequency range, uses serial ports to carry out data
Transmitting-receiving, reduces the threshold of wireless application module.As it is shown on figure 3, TXD, RXD are respectively with MCU's
RXD, TXD are connected.After arriving sampled distance, the order of sampling is transferred to industrial computer by wireless serial.
Wireless serial is to exist in pairs, also connects an identical wireless string of E50-TTL-100 type on industrial computer
Mouthful.
Specifically, M0, M1 control four kinds of working methods of wireless serial.M0, M1 ground connection, select
0 general modfel (serial ports is opened, and wireless opens, transparent transmission, recipient must pattern 0,1).Transmitting-receiving
Both sides are configured to transparent transmission (data i.e. sent are exactly legacy data, will not add protocol header), and both sides are empty
Speed, address, channel are arranged to unanimously.Owing to MCU used uses the crystal oscillator of 11.0592MHz, if
The baud rate put is 115200, and therefore, for ensureing that communication is normal without error code, wireless serial both sides' baud rate is also
It is set to 115200.Another corresponding E50-TTL-100 type wireless serial, it is connected to USB and turns UART
Interface modular converter after, be directly inserted in the USB interface of industrial computer, load onto driving, can be achieved with wireless
Transmitting-receiving.
Ultra sonic scanner detector passes through applications ranging device, in harvester 1 moving process, it is possible to automatically
Keep track of its two-dimensional coordinate, process with this and be calculated shift value, pre-set in industrial computer
Sampled distance, when reaching sampled distance, industrial computer can send system beep sound and give prompting, hears and carries
After showing, harvester 1 stops mobile, after transducer preparation is in place, starts external trigger device, to micro-control
One signal of device processed, this signal sent into industrial computer by microcontroller, and industrial computer receives after this signal immediately
By second wireless device, first wireless device, the order gathering sound wave is sent to microcontroller, microcontroller
Device sends acquisition to transducer, and transducer gathers sonic data at sampling location automatically, and in real time
Data are uploaded to industrial computer, and industrial computer receives, shows, processes, preserves collected acoustic signals,
Realize the intensity to detectable substance and the check and evaluation of defect in each sampled distance position, it is achieved thereby that survey
Component analysis device separates with sampling apparatus and measures the automatization of process, high efficiency, has low cost, efficiency
High, precision height, the advantage of good stability.
A kind of intelligent sound wave scanning detection method, comprises the following steps:
Step one: industrial computer pre-sets sampled distance；
Step 2: the hand-held harvester of operator 1 moves on the surface of detectable substance, and range unit is measured in real time
The two-dimensional coordinate value of harvester 1, and it is sent to industrial computer, two-dimensional coordinate value is processed by industrial computer
To sampled distance, and judge whether sampled distance reaches preset value, if, it is determined that this position is sample bits
Put, carry out next step；
Step 3: operator stops mobile sampling apparatus, after transducer preparation is in place, starts external trigger dress
Putting to one signal of microcontroller, this signal is sent into industrial computer by microcontroller, and industrial computer receives this letter
By second wireless device, first wireless device, the order gathering sound wave is sent to microcontroller immediately after number；
Step 4: microcontroller sends acquisition and automatically gathers at sampling location to transducer, transducer
Sonic data；
Step 5: the acoustic signals that transducer is gathered by microcontroller passes through first wireless device, the second nothing
Line apparatus is uploaded to industrial computer；
Step 6: industrial computer reads in real time, shows, analyzes the acoustic signals gathered, and by Two-dimensional Distance
Preserve from the signal gathered；
Step 7: circulation step two to step 6, obtains each sampled distance position, detectable substance surface by scanning
Put the sonic data at place；
Step 8: industrial computer, according to the sonic data gathered, will analyze each sampled distance position, detectable substance surface
Put intensity and the defect at place.
In intelligent sound wave scanning detection method, the program flow diagram of range finding is as shown in Figure 4.In order to accurately
Obtain shift value when range unit moves, it must be understood that the moving direction of range unit, determine range unit
The increments being worth on x, y direction during movement or decrement, have only in the present invention by luminous two
The hardware simplicity circuit of pole pipe, lens subassembly, optical sensor, microprocessor and radio-frequency module composition just may be used
To realize.Host computer procedure is once operation, it is first determined whether receive from the reset signal controlling end,
If so, the inner parameter of photoelectric chip will reinitialize, and range unit does not moves, and with photoelectric chip is
Benchmark, the horizontal direction of chip is X-axis, and the vertical direction of chip is Y-axis, when program starts, initial core
The position of the photosensitive eye of sheet is set to initial point (0,0) Serial Peripheral Interface (SPI) and reads displacement variable x=0, y=0；Always
Shift value Sum X=0；Sum Y=0；Mobile range unit, optical sensor will pass through image acquisition
System obtains lens and the microcosmic surface image of illuminator shooting, can shoot up to by photosensitive eye is per second
Thousand of two field pictures, the priority time sequencing photographed according to image, it is stored in Frame_Capture register
In, digital signal processor reads the information in depositor in order and carries out certain process, wherein passes through
Read_pixel_burst (void) reads image information, compares the difference between the most adjacent picture, just determining,
Opposite direction, reads x, the y value of change.If opposite direction then deducts displacement variable: Sum X=Sum X-x；
Sum Y=Sum Y y, if positive direction is then plus displacement variable: Sum X=Sum X+x；Sum
Y=Sum Y+y, then uploads to Sum X, Sum Y value find range in receptor by radio-frequency module,
Rear judging whether range unit stops, if stopping, then controlling program end of run.The chip of optical sensor
Pin NCS is once pulled low, and four line serial ports will be activated, and transfers data to microprocessor, micro-process
Coordinate figure variable quantity is processed by device according to direction, obtains starting the coordinate to rest position from initial point,
Transferred data on industrial computer by radio-frequency module again.
Range finding receptor on industrial computer receives the data that range unit transmits, and turns through C language programming
Changing, generate dll file, called by LABVIEW, the data called are pixel coordinate value, so data
Also needing to carry out certain process, the pixel maximum that can show at LABVIEW is exactly the maximum of industrial computer
Pixel value, when reaching max pixel value, needs the border eliminating industrial computer to solve this problem.Under
Face just eliminates the process of Y boundary value and does a detailed description, then eliminate X border the most in like manner Y.First
(X0, Y0) coordinate figure at initial point is set, then starts to judge whether to reach Yi maximum, if it is,
So Yi reaches the number of times of maximum value boundary will add one, and initializes Yi coordinate figure, and utilizes formula
1 is calculated the shift value Sy1 being converted into actual movement by pixel value, and formula 1 is [An+ (B-A)]/A*C,
(A is initial point pixel value, and n is the number of times reaching maximum value boundary, and B is the pixel value of change, and C is
Certain actual distance value obtained, this value is to be accurately obtained after control variable), judge whether again simultaneously
Reach Xi maximum, if it is then the number of times that Xi reaches maximum value boundary will add one, and initially
Change Xi coordinate figure, utilize formula 1 to be calculated the shift value being converted into actual movement by pixel value simultaneously
Sx1, if it does not, judge again Xi value whether between initial point and maximum, if it is, directly use formula
1 calculates shift value Sx1；If it does not, need to again judge whether Xi value is equal to zero, if it is, that
Xi minimizes the number of times on value border will add one, and initializes Xi coordinate figure, and formula 2 calculates
Actual displacement value Sx2, formula 2 is [An+ (A-B)]/A*C；If it does not, directly calculate position with formula 2
Shifting value Sx2.If Yi is not reaching to maximum, it is judged that Yi value whether initial point and maximum it
Between, if it is, directly calculate shift value Sy1 with formula 1, then judge to take turns the scope of Xi simultaneously,
Ibid；If it does not, judge whether Yi value is equal to zero, if it is, Yi minimizes the number of times on value border
Will add one, and initialize Yi coordinate figure, utilize formula 2 to be calculated actual displacement value Sy2 simultaneously,
Judge to take turns the scope of Xi again, ibid；If it does not, directly calculate shift value Sy2 with formula 2,
Judge to take turns the scope of Xi again, ibid simultaneously.Owing to formula 1 is different from formula 2, sentence so whole
Broken strip part will separate and write, but LabVIEW programming is simple, and debugging is convenient, finally at host computer
On the front panel of program, the coordinate figure of display is all the coordinate figure of actual movement.If the coordinate moved by reality
It is worth calculated distance when reaching to gather distance, will stop mobile, perform acquisition tasks.
The all coordinates collected during movement all can automatically save, and reaches to gather all of distance
Coordinate can be additionally divided and automatically save, and this is accomplished by the flexible use of two-dimensional array and construction of condition.
Movable two dimensional surface track is also shown in real time, and event trace is to show in the graph, due to detection
Distance be do not have limitary, then chart size also wants correspondence not have boundary.Wherein host computer
In the waveform chart of LABVIEW front panel, the size of X, Y scale can not be arranged to automatically adjust, with
The continuous increase of sampled distance, between the size automatically adjusted, interval can be increasing, and result shows not
Clear, do not reach the effect wanted, just can realize, by programming, the result that size shows and present rule
Be increased or decreased.Below a detailed description is done with regard to the regular increase of X, Y size in waveform chart,
By in Sx, Sy value and waveform chart of the calculated reality of formula 1,2
Xscale.Maximum, Xscale.Minimum, Yscale.Maximum, Yscale.Minimum value profit
Enter to compare with construction of condition.If Sx value is true more than or equal to Xscale.Maximum, will
Xscale.Maximum value is assigned to again plus the maximum set the most at first
Xscale.Maximum, Xscale.Minimum value is assigned to again plus the maximum set the most at first
Xscale.Minimum, this maximum does not changes after having set；If Sx value is more than or equal to
Xscale.Maximum is false, and the value of Xscale.Maximum and Xscale.Minimum keeps constant,
In construction of condition, the most in like manner judge the magnitude relationship of Sy value and Yscale.Maximum, utilize condition to tie
Structure.When harvester 1 moves to the full-size value arranged, the size on whole front panel is same
Time plus the maximum that sets before.The augment direction of sighting distance distance values is forward, when harvester 1 exists
Need during moving forward to have a look that the track passed by or have is moved rearwards by is necessary for when needing wanting
The reduction of size controls, and in waveform chart, the regular reduction of X, Y size increases programming with regular
Slightly different, it is not detailed herein.Concrete program flow diagram is as shown in Figure 5.Last mesh
Mark is the waveform that the coordinate gathering distance corresponds to this position, is allowed to simultaneously aobvious on front panel
Show, it appears that more directly perceived.
Whole measurement operation only needs a people to complete, simple to operation, time saving and energy saving.
The ultra sonic scanner detection method of the present embodiment, can be performed by above-mentioned intelligent sound wave scanning detector, its
Realizing principle similar with technique effect, here is omitted.
Claims (6)
1. an intelligent sound wave scanning detector, it is characterized in that: include harvester and main frame, described harvester includes transducer, acoustic emission and Acquisition Circuit, microcontroller, external trigger device, first wireless device and range unit, described transducer, acoustic emission and Acquisition Circuit, microcontroller is sequentially connected with, external trigger device, first wireless device is connected with microcontroller respectively, described main frame includes industrial computer, range finding receptor and second wireless device, industrial computer respectively with range finding receptor, second wireless device is connected, industrial computer receives, by range finding receptor, the distance signal that range unit sends, industrial computer is by second wireless device and microcontroller implementation wireless telecommunications.
Intelligent sound wave scanning detector the most according to claim 1, it is characterized in that: described range unit includes light emitting diode, lens subassembly, optical sensor, microprocessor and radio-frequency module, light emitting diode, lens subassembly, optical sensor set gradually, the signal output part of optical sensor is connected with microprocessor, microprocessor is connected with radio-frequency module, and signal is sent into main frame.
Intelligent sound wave scanning detector the most according to claim 1, it is characterised in that: described transducer includes one for transmitting terminal and the receiving terminal of an acoustic signals going back to detectable substance surface for reception from detectable substance internal reflection of launching acoustic signals.
Intelligent sound wave scanning detector the most according to claim 1, it is characterised in that: described first wireless device and second wireless device use WIFI module.
Intelligent sound wave scanning detector the most according to claim 1, it is characterised in that: described microcontroller is single-chip microcomputer.
6. an intelligent sound wave scanning detection method, comprises the following steps:
Step one: industrial computer pre-sets sampled distance；
Step 2: the hand-held harvester of operator moves on the surface of detectable substance, the two-dimensional coordinate value of harvester measured in real time by range unit, and it is sent to industrial computer, industrial computer carries out process to two-dimensional coordinate value and obtains sampled distance, and judge whether sampled distance reaches preset value, if, it is determined that this position is sampling location, carries out next step；
Step 3: operator stops mobile sampling apparatus, after transducer preparation is in place, start external trigger device to one signal of microcontroller, this signal is sent into industrial computer by microcontroller, and the order gathering sound wave is sent to microcontroller by second wireless device, first wireless device after receiving this signal by industrial computer immediately；
Step 4: microcontroller sends acquisition to transducer, and transducer gathers sonic data at sampling location automatically；
Step 5: the acoustic signals that transducer is gathered by microcontroller is uploaded to industrial computer by first wireless device, second wireless device；
Step 6: industrial computer reads in real time, shows, analyzes the acoustic signals gathered, and is preserved by the signal of two-dimensional distance with collection；
Step 7: circulation step two to step 6, obtains the sonic data of each sampled distance position, detectable substance surface by scanning；
Step 8: industrial computer, according to the sonic data gathered, will analyze intensity and the defect of each sampled distance position, detectable substance surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610507749.4A CN105911147A (en) | 2016-06-30 | 2016-06-30 | Intelligent sound wave scanning detector and detection method |
Applications Claiming Priority (1)
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