CN105334235B - A kind of crack detection system and its detection method - Google Patents
A kind of crack detection system and its detection method Download PDFInfo
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- CN105334235B CN105334235B CN201510867205.4A CN201510867205A CN105334235B CN 105334235 B CN105334235 B CN 105334235B CN 201510867205 A CN201510867205 A CN 201510867205A CN 105334235 B CN105334235 B CN 105334235B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
Abstract
The present invention provides a kind of crack detection systems, it includes the crack sensor being installed on component to be detected and the wireless exploration instrument for communicating with connection, wherein, the wireless exploration instrument is configured to send electromagnetic wave to the crack sensor to be sent to it inquiry signal and electric energy, and judges on the component according to whether it receives answer signal corresponding with the inquiry signal with the presence or absence of crackle；The crack sensor is configured to detect on the component with the presence or absence of crackle, and when it is detected as on the component sending answer signal corresponding with the inquiry signal to the wireless exploration instrument there is no when crackle；When it is detected as on the component not sending signal to the wireless exploration instrument there are when crackle.Crack detection system provided by the present invention, which has, to be facilitated installation and not to need outer power supply source, the high feature of detection accuracy.
Description
Technical field
The present invention relates to structural crack detection field, especially a kind of crack detection system and its detection method.
Background technique
Structural crack is detected usually using following technology and methods both at home and abroad at present:
1, Liquid Penetrant method Liquid penetrant testing (PT) is to coat certain permeable colored liquid of tool, wiping in metal surface
After, due to remaining liquid in crackle, therefore it can show crackle.It is mainly used for the detection of casting/forged part.
2, magnetic particle method magnetic particle detection (MT) is the particulate using magnetic powder, is leaked due to caused by crackle entering
It when magnetic field, will be left by being sucked, since magnetic flux leakage is wider than the crack by, therefore the magnetic powder gathered is with the naked eye readily seen.It is usually used in casting
Part, forge piece, rolling steel plate, the detection for being heat-treated part.
3, this method of detection method of eddy is carried out using vortex crack detector.When its principle is detector contact crackle,
So that the impedance of probe coil is weakened and is obtained the variation on voltage, i.e., shows respective value or sending on instrument calibration disk
Alarm.The depth value of crackle can also be equally measured using eddy-current method.
4, ray detection method ray detection (RT), common χ, the gamma-rays for readily penetrating through substance.When ray is penetrating object
In the process, due to being absorbed and being scattered, make remitted its fury, the degree and object thickness, the property of material and ray of decaying
Type it is related, therefore when object has the isometric defect of stomata, ray is easy for passing through.Conversely, absorbing ray if being mixed with
When foreign matter is mingled with, ray is just difficult to pass through.With the radiation exposure of even intensity object detected, the ray penetrated is made to take pictures
It is photosensitive on egative film, defect kind, size and distribution situation are determined by the observation to egative film, are evaluated according to corresponding standard
The extent of injury of defect.But this method is costly, and operator will properly protect, in order to avoid be hurt.
5, ultrasonic testing ultrasound examination (UT) be using transmitting high-frequency ultrasonic (1~10MHz) be injected by
The inside of detectable substance, the ultrasonic wave that some people is penetrated if encountering internal flaw is reflected or is decayed in fault location, then through visiting
Head amplifies again after receiving, and position and its size of defect are determined by the waveform shown, is evaluated further according to corresponding standard scarce
The sunken extent of injury.Suitable for the detection of the discontinuous flaw of plane, high operation requirements, it is necessary to could be operated by professional.
Also, above several crack detecting methods are all that structure member is disassembled or removed from machine or equipment
The processing such as paint, polishing, then carry out crack detection again, belong to subsequent offline inspection, cannot find crackle in time, and operated
Journey is also more complicated.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of using communication and does not need outer power supply source
Crack detection system and its detection method.
In order to solve the above-mentioned technical problem, present invention employs following technical solutions:
A kind of crack detection system including the crack sensor being installed on component to be detected and communicates with connection
Wireless exploration instrument, wherein
The wireless exploration instrument is configured to send electromagnetic wave to the crack sensor to be sent to it inquiry signal and electricity
Can, and according to its whether receive answer signal corresponding with the inquiry signal judge on the component whether there is split
Line；
The crack sensor is configured to detect on the component with the presence or absence of crackle, and when it is detected as on the component
There is no when crackle, answer signal corresponding with the inquiry signal is sent to the wireless exploration instrument；When it is detected as institute
It states on component there are when crackle, does not send signal to the wireless exploration instrument.
Preferably, the crack sensor includes the crackle perceptron being fitted on component to be detected, and and its
First wireless transmit/receive units of electrical connection, first Transmit-Receive Unit is configured to communicate to connect with the wireless exploration instrument, to connect
It receives the electromagnetic wave and sends the answer signal.
Preferably, first wireless transmit/receive units include the radio-frequency module being electrically connected to each other and LC oscillating circuit, institute
Crackle perceptron is stated to be electrically connected with the radio-frequency module and LC oscillating circuit respectively；And when crackle perceptron sensing is component
Above there is no when crackle, the frequency of oscillation of the LC oscillating circuit is identical as the transmission frequency of the wireless exploration instrument, and works as institute
Stating crackle perceptron sensing is on component there are when crackle, the frequency of oscillation of the LC oscillating circuit and the wireless exploration instrument
It is not identical to send frequency；Wherein a part of the inductor in the LC oscillating circuit is configured to antenna.
Preferably, the radio-frequency module is configured to that the data being stored in it are encrypted and modulated, to pass through
It states antenna to be sent out, and demodulation decryption is carried out to the received inquiry signal of the antenna, and by the number after decryption and demodulation
Wherein according to deposit.
Preferably, the wireless exploration instrument includes:
Second Transmit-Receive Unit is communicated to connect with first Transmit-Receive Unit；
Data processing module is electrically connected with second Transmit-Receive Unit, and is configured to the second Transmit-Receive Unit institute
Received answer signal carries out demodulation decryption, and inquiry signal to be sent is encrypted and modulated, to pass through described the
Two Transmit-Receive Units are sent out；Also, it is further configured whether to be received and transmission according to second Transmit-Receive Unit
The corresponding answer signal of signal is inquired, judges whether the crackle perceptron detects crackle；
Driver module is configured to driving display to show the reply message of the crack sensor transmission；
Power module provides electric power for the wireless exploration instrument；
Memory module, the information after being used to store data processing module demodulation decryption, and with corresponding crackle
The corresponding storage of sensor, is also stored with the installation site information of each crack sensor；
Control module is electrically connected with the data processing module, driver module, power module and memory module,
To control the data processing module, driver module and the operation of memory module.
Preferably, the wireless exploration instrument further includes the communication module being electrically connected with the control module, with to outside
Terminal device send data.
Preferably, the wireless exploration instrument further includes the login module being electrically connected with the control module, the login
Module is configured to the operation interface when User ID and password match into the wireless exploration instrument, and in the memory module
The login time of the encrypted message and each user that are also stored with the id information of each user and match with the id information is believed
Breath.
Preferably, the wireless exploration instrument further includes the result queries module being electrically connected with control module and is arranged in institute
The inquiry button in operation interface is stated, the result queries module is also electrically connected with the memory module, and the inquiry button
It include: time inquiring key, sensor query key, user query key；According to the control module is further configured
Its received inquiry button signal controls the result queries module and is inquired, and is controlled and shown by driver module
Device shows query result.
Preferably, the quantity of the crack sensor is multiple, and each crack sensor has unique compile
Number, it include the number information in the answer signal.
The present invention also provides a kind of detection methods based on above-mentioned crack detection system.
A kind of detection method of crack detection system, following steps:
S1: wireless exploration instrument sends electromagnetic wave to the crack sensor for communicating with connection, to be sent to it inquiry signal
And electric energy；
S2: the crack sensor receives the electromagnetic wave, and detects on the component where it with the presence or absence of crackle；When it
It is detected as on the component sending answer letter corresponding with the inquiry signal to the wireless exploration instrument there is no when crackle
Number；When it is detected as on the component not sending signal to the wireless exploration instrument there are when crackle；
S3: the wireless exploration instrument receives judge whether deposit on the component according to whether it receives the answer signal
In crackle.
Compared with prior art, the beneficial effects of the present invention are:
1, it is in communication with each other between crack sensor and structural crack survey meter of the present invention using communication, and crackle
Sensor can obtain energy from crack detector by electromagnetic induction method, be not required to outer power supply source and carry out complicated system cloth
Line；But also multiple crack sensors can be distinguished simultaneously, have Anti-knocking function；
2 and the present invention can under the premise of not detaching structure component in situ detection component whether it is cracked moreover,
Can double of concealed structure, concealed structure position detected；
3, detection process of the invention is easy to operate, interpretation is easy, can be detected at any time and find crackle in time；
4, crack sensor can Random Design at how shape, can to metal material, composite material carry out structural crack prison
It surveys, because no lead is convenient to for crack sensor to be placed in monitored site, especially concealed structure；
6, graph direct, quickly display crack site and crackle size can be passed through；
7, it is capable of the collection result of each sensor of real-time storage, and can a situation arises carries out statistical to each point of observation crackle
Analysis, generates various statistical report forms.
Detailed description of the invention
Fig. 1 is the structural block diagram of the crack detection system in the embodiment of the present invention；
Fig. 2 is the structural block diagram of the crack sensor in the embodiment of the present invention；
Fig. 3 is the schematic view of the mounting position of the crackle perceptron and component in the embodiment of the present invention；
Fig. 4 is the structural block diagram of the wireless exploration instrument in the embodiment of the present invention；
Fig. 5 is the waveform diagram of the modulated signal in the embodiment of the present invention；
Fig. 6 is the form schematic diagram for the inquiry signal that wireless exploration instrument is sent in the embodiment of the present invention；
Fig. 7 is the form schematic diagram for the answer signal that structural crack perceptron is sent in the embodiment of the present invention；
Fig. 8 is the response timing diagram of the crackle perceptron in the embodiment of the present invention；
Fig. 9 is the flow chart of the detection method of the crack detection system in the embodiment of the present invention.
Description of symbols
1- component 2- crack sensor
3- wireless exploration instrument 21- crackle perceptron
22- the first wireless transmit/receive units 221- radio-frequency module
222-LC oscillating circuit the second wireless transmit/receive units of 31-
32- data processing module 33- driver module
34- power module 35- memory module
36- control module 37- display
38- communication module 39- login module
310- initialization module 320- result queries module
Specific embodiment
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, but not as to limit of the invention
It is fixed.
As shown in Figure 1, being the structural block diagram of crack detection system of the invention, wherein the system is to be checked including being installed on
The crack sensor 2 surveyed on component 1 and communicate with the wireless exploration instrument 3 of connection, wherein wireless exploration instrument 3 is configured to splitting
Whether line sensor 2 sends electromagnetic wave to be sent to it inquiry signal and electric energy, and received and the inquiry signal phase according to it
Corresponding answer signal judges on component 1 with the presence or absence of crackle.In addition, whether crack sensor 2 is configured to deposit in detection means 1
In crackle, and when it is detected as on component 1 there is no crackle, is sent to wireless exploration instrument 3 and inquire that signal is corresponding to be answered
Complex signal；When it is detected as on the component not sending signal to wireless exploration instrument 3, at this time wireless exploration instrument 3 there are when crackle
Also any answer signal would not be received.Crack sensor 2 of the invention may also receive from the electromagnetism of wireless exploration instrument
Wave is converted to the electric energy itself to work to receive its RF energy.
As shown in Fig. 2, the crack sensor 2 of the embodiment of the present invention includes the crackle sense being fitted on component 1 to be detected
Know device 21, and the first wireless transmit/receive units 22 being connected electrically, wherein the first Transmit-Receive Unit 22 is configured to and wireless exploration
Instrument 3 communicates to connect, to receive the electromagnetic wave of the transmission of wireless exploration instrument 3 and send answer signal corresponding with inquiry signal.This reality
It applies in example, the quantity with the crack sensor 2 of the same wireless exploration instrument 3 communication connection can be multiple, and each crackle passes
Sensor 2 has unique number, includes the number information in the answer signal sent.
As shown in Fig. 2, the first wireless transmit/receive units 22 include the radio-frequency module 221 and LC oscillating circuit being electrically connected to each other
222, and crackle perceptron 21 is electrically connected with radio frequency (RFID) module 221 and LC oscillating circuit 222 respectively；And work as crackle perceptron
21 sensings are the frequency of oscillation and the transmission frequency phase of wireless exploration instrument 3 of LC oscillating circuit 222 when crackle being not present on component 1
Together, and when the sensing of crackle perceptron 21 is on component 1 there are when crackle, since the perception characteristics of crackle perceptron 21 change
And captured by LC oscillating circuit, keep the frequency of oscillation of LC oscillating circuit 222 not identical as the transmission frequency of wireless exploration instrument 3；
Wherein a part of the inductor in LC oscillating circuit 222 is configured to antenna, to carry out sending and receiving for signal.
In addition, radio-frequency module 221 is configured to that the data being stored in it are encrypted and modulated, to pass through the antenna
It is sent out, and demodulation decryption is carried out to the received inquiry signal of antenna, and wherein by the data deposit after decryption and demodulation.
The signified data for being stored in radio-frequency module may include number information and the number letter about crack sensor 2 in the present embodiment
Breath etc..Correspondingly, also just include the number information and number information of crack sensor 2 in answer signal, and wireless exploration instrument can
Judge whether which crack sensor 2 detects crackle with answer signal based on the received.
Specifically, the antenna (induction coil) in the present embodiment is used to the radio frequency energy that induction wireless survey meter is emitted
Amount, completes the update of data, answer signal is returned to wireless exploration instrument also in a manner of radiofrequency signal by this outside antenna.
RFID module 221 is mainly used for controlling operating frequency, the data transmission rate of LC oscillating circuit 222, and to signal
Modulation /demodulation, encrypting and decrypting, the read-write mechanism of data etc..After RFID module 221 obtains energy required for work, it can will deposit
The data encryption of storage area, and in a manner of modulated signal by antenna transmission to wireless exploration instrument 3, or by wireless exploration instrument 3
The signal sended over is demodulated and is decrypted into the data write-in RFID module 221 of update.The radio-frequency module of the embodiment of the present invention
221 use IS0's 15693 up to 1 meter of distance, the module using Philip I CODE2 module, module transfer distance
Consensus standard only need to simply connect seldom several turn coils, can be received or be emitted under 13.56MHz carrier wave.I·CODE
2 modules have anti-collision function, which allows to operate multiple crack sensors 2 simultaneously in antenna field, with anti-collision
Effect avoids the influence that data are transmitted by other crack sensors 2.
In addition, the crackle perceptron 21 in the present embodiment is made of flexibility perception inductor.The inductor is by tens microns
Conductive film constitute, have stress distort perception characteristics.After flexible perception inductor and fixed component 1 be with it is detected tired
Labor dangerous position (or high stress position) is combined as a whole (as shown in Figure 3), when component 1 is cracked, what cracks generated
Stress distorted signal is captured by the inductor with stress distortion perception characteristics, to reflect crackle size and direction.
After the antenna of crack sensor 2 receives inquiry signal (wireless modulated signals) of the transmission of wireless exploration instrument 3, in electricity
Under the excitation of magnetic wave, since the frequency of oscillation of LC oscillating circuit 222 and the frequency of the electromagnetic wave are identical, then LC oscillating circuit 222
Resonance is generated, to make that there is charge in crack sensor 2.When the charge accumulated reaches 2V, in crack sensor 2
One wireless transceiver 21 is started to work, and the inquiry signal of crack detector is demodulated in the wireless modulated signals received from it,
Then corresponding answer signal (response modulated signal) is issued to wireless exploration instrument 3 according to the content of inquiry.Occur when on component 1
When crackle, the perception part inductance of crack sensor 2 sends variation, and the vibration frequency of LC vibrating circuit changes, cannot
Resonance is generated, then the first wireless transmit/receive units 22 in crack sensor 2 cannot obtain the energy needed for working normally, wireless to visit
It surveys instrument 3 and decides that out that the corresponding position (installed position for the crack sensor 2 not replied) of the component 1 is split
Line.
As shown in figure 4, the structural block diagram of the crack detection system for the embodiment of the present invention, wherein the wireless exploration instrument 3 packet
It includes: the second Transmit-Receive Unit 31, data processing module 32, driver module 33, power module 34, memory module 35 and control mould
Block 36, wherein the second Transmit-Receive Unit 31 and the first Transmit-Receive Unit 22 communicate to connect, to send and receive signal, it is preferred that first
Transmit-Receive Unit 22 and second Transmit-Receive Unit 31 are arranged in opposite directions, to enhance the intensity for receiving signal；Data processing
Module 32 is electrically connected with the second Transmit-Receive Unit 31, and carries out demodulation decryption to 31 received data of the second Transmit-Receive Unit, and
Data to be sent are encrypted and modulated, to be sent out by the second Transmit-Receive Unit 31, while further determining whether to receive
To the corresponding answer signal of inquiry signal with sending, to judge whether crackle perceptron 21 detects crackle；Display is driven
Dynamic model block 33 is configured to driving display 37 to show the reply message of the transmission of crack sensor 2；Power module 34 is wireless
Each component in survey meter 3 provides electric power；In addition, power module 34 can also include: to provide the battery of electric power, such as lithium battery,
Adjust Charge Management unit of the current or voltage to be protected, and the power supply module being electrically connected with control module 36；Storage
The information after 32 demodulation of processing module decryption for storing data of module 35, and with corresponding crack sensor 2 is corresponding stores；
Control module 36 is electrically connected with data processing module 32, driver module 33, power module 34 and memory module 35, with control
The operation of data processing module 32, driver module 33 and memory module 35.
In a preferred embodiment, wireless exploration instrument 3 further includes the communication module 38 being electrically connected with control module 36, with to
External terminal device sends data, and the communication module 38 in the present embodiment includes at least one in bluetooth module and WIFI module
Kind.Wireless exploration instrument 3 further includes the login module 39 being electrically connected with control module 36, which is configured to work as User ID
Enter the operation interface of wireless exploration instrument 3 when matching with password, and is also stored with the id information of each user in memory module 35
With the login time information of the encrypted message and each user that match with the id information.
In addition, wireless exploration instrument 3 can also include that the result queries module 320 being electrically connected with control module 36 and setting exist
Inquiry button in the operation interface, result queries module 320 are also electrically connected with memory module 35, and looking into the present embodiment
Asking key includes: time inquiring key, sensor query key, user query key；Control module 36 be further configured for
According to the signal of its received inquiry button, control result enquiry module 320 is inquired, and is controlled by driver module 33
Display 37 processed shows query result.Meanwhile user can also select to be inquired in the operation interface of wireless exploration instrument 3
Crack sensor 2, after control module 36 receives corresponding instruction, control data processing module 32 carries out the tune of corresponding signal
System and cryptographic operation, to be sent out by the second wireless transmit/receive units 31.
Further include the initialization module 310 being electrically connected with control module 36 in wireless exploration instrument 3, is used for wireless exploration instrument
3 software and hardware initialization and self-test, to guarantee that wireless exploration instrument 3 can normally be run.Specifically, working as nothing in the present embodiment
After line survey meter 3 powers on, software and hardware initialization and self-test are first carried out, subsequently into the operation interface of wireless exploration instrument.It is wireless to visit
It surveys instrument 3 and transmits electromagnetic energy to crack sensor 2 by the second wireless transmit/receive units 31, it is provided when it is radiation pattern
By the conversion of the guiding wave direction free space wave on transmission line, provides when receiving mode and turn from free space wave to guided wave again
It changes.In order to realize the conversion of this energy, the second wireless transmit/receive units 31 are an electromagnetism open systems, and the load phase with source
Matching, radiation have directionality, i.e., emit electromagnetic wave as much as possible to given direction, and the validity of enhanced rad subtracts
Interference and noise in few other environment.By above-mentioned process, crack sensor 2 obtains energy and powers to internal circuit, makes
It can work and pass related useful information back to wireless exploration instrument 3.
Wireless exploration instrument 3 in the present embodiment according to ISO/IEC15693-2 defined communication physical layer protocol and crackle
Sensor 2 is communicated, and working frequency can be with 13.56MHz, using AM modulation system, modulation rate 100%, returned data wave
Special rate can be 6.67kb/s.Modulation waveform through the above configuration is as shown in Figure 5:
In addition, the general format for the querying command that the wireless exploration instrument 3 in the present embodiment is sent is as shown in Figure 6, wherein
FLAGS is used to provide the presence in certain optional domains in querying command content.The general format of the response structure of crack sensor 2 is such as
Shown in Fig. 7, wherein start bit S2 is used to indicate that crack sensor 2 to reply the beginning of data, and definition is when SCLOCK is high electricity
Usually, DOUT generates a rising edge.And stop bits ES2 then indicates the end of crack sensor 2 (VICC) response data, and by
It is defined as when SCLOCK is high level, DOUT generates a failing edge (as shown in Figure 8).
Second wireless transmit/receive units 31 of wireless exploration instrument 3 receive a reply after signal (response modulated signal), demodulate anti-
The data-signal of 2 working condition of crack sensor is answered, data processing module 32 is inquired according to the unique number ID of crack sensor 2
The installation site of crack sensor 2 corresponding with the number in memory, after the completion of all crack sensors 2 all detect,
It can judge which position does not find crackle, which position discovery crackle is the position without returning to the sensor of answer signal
It sets cracked.Control unit 36 controls and intuitively shows detection result by way of figure by display 37, simultaneously
The detection result of each crack sensor and operator and detection date are saved in memory module 35.When need inquire, analysis
Corresponding operation interface can be entered by login module 39 with user when statistics, can temporally, user, sensor and failure etc.
Querying condition is inquired；Temporally each sensor changing rule can also be analyzed；It can unite simultaneously by certain condition
Meter generates various statistical report forms.
As shown in figure 9, the flow chart of the detection method for the crack detection system of the embodiment of the present invention, including following
Step:
S1: wireless exploration instrument sends electromagnetic wave to the crack sensor for communicating with connection, to be sent to it inquiry signal
And electric energy；
S2: the crack sensor receives the electromagnetic wave, and detects on the component where it with the presence or absence of crackle；When it
It is detected as on the component sending answer letter corresponding with the inquiry signal to the wireless exploration instrument there is no when crackle
Number；When it is detected as on the component not sending signal to the wireless exploration instrument there are when crackle；
S3: the wireless exploration instrument receives judge whether deposit on the component according to whether it receives the answer signal
In crackle.
Specifically, the power switch of wireless exploration instrument 3 is opened, into nothing when user will detect structural crack
Line detection system interface can be detected after inputting the name (ID) and password of correct operator (user).Operator takes
The antenna of wireless exploration instrument 3 out is directed at the first wireless transmit/receive units 22 of crack sensor, and the second of wireless exploration instrument 3 is wireless
Transmit-Receive Unit can produce the data modulated electromagnetic wave of 13.56MHz frequency, the vibration of the LC oscillating circuit 222 in crack sensor 2
Swing that frequency is identical as the tranmitting frequency of wireless exploration instrument, under the excitation of electromagnetic wave, LC resonance circuit 22 generates resonance, to make
There are charge, the first wireless transmit/receive units when the charge accumulated reaches 2V, in crack sensor 2 in crack sensor 2
221 start to work, and radio-frequency module 222 demodulates the inquiry signal of wireless exploration instrument 3 from the modulating wave of inquiry signal, then
Corresponding answer modulated signal, the second Transmit-Receive Unit of wireless exploration instrument 3 are issued to wireless exploration instrument 3 according to the content inquired
31 receive a reply after modulated signal, and data processing module 32 demodulates the data-signal of the working condition of reaction crack sensor 2,
Data processing module 32 analyzes it processing and judgement, and passes through the control of control unit 36, by result by display 37
Intuitive the shows by way of figure, while detection result and operator and detection day each crack sensor 2
Phase is saved in memory module 35.When need inquire, analysis and statistics when enter corresponding operation interface, can temporally, operation
The querying conditions such as person, sensor and failure are inquired；Temporally each sensor changing rule can also be analyzed；It simultaneously can
Statistics, which is carried out, by certain condition generates various statistical report forms.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (8)
1. a kind of crack detection system, it is characterised in that: including the crack sensor that is installed on component to be detected and and its
The wireless exploration instrument of communication connection, wherein
The wireless exploration instrument is configured to send electromagnetic wave to the crack sensor to be sent to it inquiry signal and electric energy, and
Judge on the component according to whether it receives answer signal corresponding with the inquiry signal with the presence or absence of crackle；
The crack sensor is configured to detect on the component with the presence or absence of crackle, and when it is detected as not depositing on the component
In crackle, answer signal corresponding with the inquiry signal is sent to the wireless exploration instrument；When it is detected as the structure
There are when crackle on part, signal is not sent to the wireless exploration instrument；
The crack sensor includes the crackle perceptron being fitted on component to be detected, and the first nothing being connected electrically
Line Transmit-Receive Unit, first wireless transmit/receive units are configured to communicate to connect with the wireless exploration instrument, to receive the electromagnetism
Wave simultaneously sends the answer signal；
First wireless transmit/receive units include the radio-frequency module being electrically connected to each other and LC oscillating circuit, the crackle perceptron point
It is not electrically connected with the radio-frequency module and LC oscillating circuit；And when crackle perceptron sensing is that crackle is not present on component
When, the frequency of oscillation of the LC oscillating circuit is identical as the transmission frequency of the wireless exploration instrument, and works as the crackle perceptron
Sensing is on component there are when crackle, the transmission frequency of the frequency of oscillation of the LC oscillating circuit and the wireless exploration instrument not phase
Together；Wherein a part of the inductor in the LC oscillating circuit is configured to antenna.
2. crack detection system according to claim 1, it is characterised in that: the radio-frequency module is configured to being stored in it
Interior data are encrypted and are modulated, and to be sent out by the antenna, and are carried out to the received inquiry signal of the antenna
Demodulation decryption, and wherein by the data deposit after decryption and demodulation.
3. crack detection system according to claim 1, it is characterised in that: the wireless exploration instrument includes:
Second Transmit-Receive Unit is communicated to connect with the crackle perceptron；
Data processing module is electrically connected with second Transmit-Receive Unit, and is configured to receive second Transmit-Receive Unit
Answer signal carry out demodulation decryption, and inquiry signal to be sent is encrypted and is modulated, to be received by described second
Bill member is sent out；Also, it is further configured whether to receive the inquiry with transmission according to second Transmit-Receive Unit
The corresponding answer signal of signal, judges whether the crackle perceptron detects crackle；
Driver module is configured to driving display to show the reply message of the crack sensor transmission；
Power module provides electric power for the wireless exploration instrument；
Memory module, the information after being used to store the data processing module demodulation decryption, and sensed with corresponding crackle
The corresponding storage of device, is also stored with the installation site information of each crack sensor；
Control module is electrically connected with the data processing module, driver module, power module and memory module, with control
Make the operation of the data processing module, driver module and memory module.
4. crack detection system according to claim 3, it is characterised in that: the wireless exploration instrument further includes and the control
The communication module of molding block electrical connection, to send data to external terminal device.
5. crack detection system according to claim 3, it is characterised in that: the wireless exploration instrument further includes and the control
The login module of molding block electrical connection, the login module are configured to enter the wireless spy when User ID and password match
Survey the operation interface of instrument, and the password for being also stored with the id information of each user in the memory module and matching with the id information
Information and the login time information of each user.
6. crack detection system according to claim 5, it is characterised in that: the wireless exploration instrument further includes and controls mould
The result queries module of block electrical connection and the inquiry button that is arranged in the operation interface, the result queries module also with institute
Memory module electrical connection is stated, and the inquiry button includes: time inquiring key, sensor query key, user query key；
Its received inquiry button signal according to the control module is further configured, controls the result queries module and is looked into
It askes, and display is controlled by driver module and shows query result.
7. crack detection system according to claim 1, it is characterised in that: the quantity of the crack sensor be it is multiple,
And each crack sensor has unique number, includes the number information in the answer signal.
8. a kind of detection method of crack detection system, it is characterised in that: the following steps are included:
S1: wireless exploration instrument sends electromagnetic wave to the crack sensor for communicating with connection, to be sent to it inquiry signal and electricity
Energy；
S2: the crack sensor receives the electromagnetic wave, and detects on the component where it with the presence or absence of crackle；When its detection
When for crackle being not present on the component, answer signal corresponding with the inquiry signal is sent to the wireless exploration instrument；
When it is detected as on the component not sending signal to the wireless exploration instrument there are when crackle；
S3: the wireless exploration instrument, which receives whether to receive the answer signal according to it and judge to whether there is on the component, to be split
Line；
Wherein, the crack sensor includes the crackle perceptron being fitted on component to be detected, and be connected electrically
First wireless transmit/receive units, first wireless transmit/receive units are configured to communicate to connect with the wireless exploration instrument, to receive
It states electromagnetic wave and sends the answer signal；
First wireless transmit/receive units include the radio-frequency module being electrically connected to each other and LC oscillating circuit, the crackle perceptron point
It is not electrically connected with the radio-frequency module and LC oscillating circuit；And when crackle perceptron sensing is that crackle is not present on component
When, the frequency of oscillation of the LC oscillating circuit is identical as the transmission frequency of the wireless exploration instrument, and works as the crackle perceptron
Sensing is on component there are when crackle, the transmission frequency of the frequency of oscillation of the LC oscillating circuit and the wireless exploration instrument not phase
Together；Wherein a part of the inductor in the LC oscillating circuit is configured to antenna.
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