CN110187381A - A kind of microseismic signals monitoring device, system and method - Google Patents
A kind of microseismic signals monitoring device, system and method Download PDFInfo
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- CN110187381A CN110187381A CN201910586609.4A CN201910586609A CN110187381A CN 110187381 A CN110187381 A CN 110187381A CN 201910586609 A CN201910586609 A CN 201910586609A CN 110187381 A CN110187381 A CN 110187381A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/22—Transmitting seismic signals to recording or processing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/24—Recording seismic data
- G01V1/247—Digital recording of seismic data, e.g. in acquisition units or nodes
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Abstract
The invention discloses a kind of microseismic signals monitoring devices, system and method, to reduce the preparation cost of monitoring device, and have general applicability.The monitoring device, including multiple signal amplification modules, at least two signal conversion modules, digital filtering module and main control module；The input terminal of signal amplification module is electrically connected with the output end of seismometer；The input terminal of signal conversion module is electrically connected with the output end of at least one signal amplification module, and output end is electrically connected with the input terminal of digital filtering module, and the output end of digital filtering module is electrically connected with the input terminal of main control module；Signal amplification module receives the microseismic signals in the direction that seismometer is sent, and generates amplified signal based on microseismic signals；Each signal conversion module carries out multichannel collecting to amplified signal, generates digital signal；Digital filtering module, the digital signal sent to each signal conversion module are filtered and convert, and generate consequential signal；Main control module is based on consequential signal, generates monitoring data.
Description
Technical field
The present invention relates to microseismic signals monitoring field more particularly to a kind of microseismic signals monitoring devices, system and method.
Background technique
With making constant progress for data acquisition technology, the application of microseismic signals monitoring technology is gradually increased, in earthquake
The fields extensive applications such as monitoring, Mine Safety in Production, oil field fracturing monitoring and tunnel safety construction monitoring.For example, for
Seismic monitoring facilitates seismologist for microseismic signals data collected and understands subsurface rock ply stress change procedure,
Important reference is provided for the forecast of earthquake monitoring from now on, it helps seismologist researchs and analyses luring for earthquake generation
Send out earthquake and earthquake genesis mechanism.In another example, using WeChat ID monitoring method, acquiring rock mass in underground engineering and occurring to break
Microseismic signals caused by the changing of the relative positions that bad or original Geological Defects are generated by the method that swashs, to analyze source signature.
By years development, domestic all multiple enterprises, unit in charge of construction all start one by one in working region mounting arrangements
Microseismic monitoring system, as a kind of effectively security monitoring means.The monitoring means not only protect underground engineering safety
There is active influence, equally has widely application prospect in terms of studying earthquake disaster.But it is studying, is sending out through inventor
Existing prior art WeChat ID monitoring technology still has many problems, such as monitoring device does not have general applicability, at high cost
The problems such as.
Summary of the invention
The object of the present invention is to provide a kind of microseismic signals monitoring devices, system and method, to reduce the system of monitoring device
Standby cost, and there is general applicability.
The purpose of the present invention is what is be achieved through the following technical solutions:
In a first aspect, the application provides a kind of microseismic signals monitoring device, including multiple signal amplification modules, at least two
Signal conversion module, digital filtering module and main control module；
The input terminal of the signal amplification module is electrically connected with the output end of seismometer；The input of the signal conversion module
End is electrically connected with the output end of signal amplification module described at least one, the input terminal electricity of output end and the digital filtering module
Connection, the output end of the digital filtering module are electrically connected with the input terminal of the main control module；
The signal amplification module, for receiving the microseismic signals in the direction that the seismometer is sent, based on described
Microseismic signals generate amplified signal；
Each signal conversion module generates digital signal for carrying out multichannel collecting to the amplified signal；
The digital filtering module, the digital signal for sending to each signal conversion module are filtered
And conversion, generate consequential signal；
The main control module is based on the consequential signal, generates monitoring data.
In possible implementation, the signal amplification module, pressure limiting circuit, the first RC including being sequentially connected electrically are filtered
Circuit, the first high-frequency filter circuit, signal amplification chip and the 2nd RC filter circuit；
The pressure limiting circuit is put by the first RC filter circuit and first high-frequency filter circuit with the signal
The signal input pin of large chip is electrically connected；The signal amplification chip is by the 2nd RC filter circuit, with the signal
Conversion module electrical connection；
The pressure limiting circuit for receiving the microseismic signals, and carries out transient overvoltage protection；
The first RC filter circuit, for carrying out pre-filtering processing to the microseismic signals；
The high-frequency filter circuit, for carrying out High frequency filter to the microseismic signals after pre-filtering；
The signal amplification chip, for carrying out signal amplification to the microseismic signals after High frequency filter；
The 2nd RC filter circuit is put described in generation for being filtered to the amplified microseismic signals of signal
Big signal.
In possible implementation, the signal amplification chip includes CS3301 amplification chip.
In possible implementation, the signal conversion module includes modulus conversion chip, and the modulus conversion chip
Master clock signal and synchronizing clock signals provided by the digital filtering module.
In possible implementation, the modulus conversion chip includes CS5372 chip.
In possible implementation, the digital filtering module includes digital filtering chip, and the digital filtering chip is used
Filtering extraction is carried out in the 1bit data flow for exporting each signal conversion module, and is converted into 24bit data, generates institute
State consequential signal.
In possible implementation, the digital filtering chip includes CS5376 chip.
In possible implementation, the main control module is electrically connected including main control chip and with the main control chip
Interface circuit, SD card storage circuit, ethernet communication circuit and power circuit；
The interface circuit, for receiving the consequential signal by the digital filtering module；
The SD card storage circuit, for carrying out data storage according to the control of the main control chip；
The ethernet communication circuit, for the monitoring data to be sent to host computer；
The power circuit, for being depressured to externally input direct current, and be supplied to the signal amplification module,
The signal conversion module, the digital filtering module and the main control chip.
In possible implementation, the main control chip includes STM32F429 chip.
Second aspect, the application provide a kind of microseismic signals monitoring system, including monitoring device as described above, further include
Seismometer and host computer；
The output end of the seismometer is electrically connected with the input terminal of the signal amplification module；
The host computer and the main control module pass through network connection.
The third aspect, the application provides a kind of microseismic signals monitoring method, using monitoring device as described above, comprising:
The microseismic signals that the different directions that seismometer is sent are received by the different signal amplification modules, are based on institute
It states microseismic signals and generates amplified signal；
Multichannel collecting is carried out to the amplified signal based at least two signal conversion modules, generates the number
Signal；
By the digital filtering module, the digital signal sent to each signal conversion module is filtered
And conversion, generate the consequential signal；
By the main control module, the monitoring data are generated based on the consequential signal.
In possible implementation, the signal conversion module includes modulus conversion chip, by the digital filtering module
Master clock signal and synchronizing clock signals are provided for the modulus conversion chip.
In possible implementation, the digital filtering module includes digital filtering chip, described to each signal
The digital signal that conversion module is sent is filtered and converts, and generates the consequential signal, comprising:
The 1bit data flow of each signal conversion module output is subjected to extraction filter by the digital filtering chip
Wave, and 24bit data are converted into, generate the consequential signal.
In the embodiment of the present application, monitoring device is filtered by multiple signal amplification modules, at least two signal conversion modules, number
Wave module and main control module composition, the microseismic signals of different directions are received by each road signal amplification module, are turned by two signals
Mold changing block carries out the amplified signal acquisition process of multichannel and generates digital signal, is carried out by digital filtering module to digital signal
Filtering processing generates consequential signal, to reduce the cost of monitoring device, and can have general applicability.
Detailed description of the invention
Fig. 1 is the overall architecture schematic diagram that microseismic signals provided by the embodiments of the present application monitor system；
Fig. 2 is the structural schematic diagram of microseismic signals monitoring device provided by the embodiments of the present application；
Fig. 3 is the structural schematic diagram of signal amplification module provided by the embodiments of the present application；
Fig. 4 is the structural schematic diagram of main control module provided by the embodiments of the present application；
Fig. 5 is the circuit diagram of signal amplification module provided by the embodiments of the present application；
Fig. 6 is the circuit diagram of analog-to-digital conversion module provided by the embodiments of the present application；
Fig. 7 is the circuit diagram of digital filtering module provided by the embodiments of the present application；
Fig. 8 is the schematic diagram of the interface circuit of main control module provided by the embodiments of the present application；
Fig. 9 is the schematic diagram of the SD card storage circuit of main control module provided by the embodiments of the present application；
Figure 10 is the schematic diagram of the ethernet communication circuit of main control module provided by the embodiments of the present application；
Figure 11 is one of the schematic diagram of power circuit of main control module provided by the embodiments of the present application；
Figure 12 is the two of the schematic diagram of the power circuit of main control module provided by the embodiments of the present application；
Figure 13 is the three of the schematic diagram of the power circuit of main control module provided by the embodiments of the present application；
Figure 14 is the power circuit schematic diagram of preceding root module provided by the embodiments of the present application；
Figure 15 is a kind of flow chart of microseismic signals monitoring method provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the application, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
It is the integrated stand composition that a kind of microseismic signals provided by the embodiments of the present application monitor system, including at least shown in Fig. 1
One seismometer, microseismic signals monitoring device and host computer, seismometer can use ultrawide-band seismometer, very broadband seismic
Meter and high-frequency seism meter or other kinds of seismometer.Wherein, seismometer can acquire the microseismic signals of different directions；Microseism
The microseismic signals that signal monitoring device acquires seismometer amplify, analog-to-digital conversion and filtering, consequential signal are generated, in this
Consequential signal generates monitoring data；The monitoring data are analyzed and handled by host computer.
It can be cable connection between WeChat ID monitoring device and host computer, such as pass through RS232 or RS485 interface and phase
The cable connection answered；Can also be by wireless network connection, such as pass through the wireless network connections such as bluetooth, wifi, infrared.It is upper
Machine can be mobile phone, computer, notebook or PAD etc., naturally it is also possible to and it is the special equipment configured according to implementation demand, on
Position machine should meet operation and microseismic signals monitoring device is configured or control the requirement of software, and meet run to data into
The requirement of row analysis processing.
As shown in Fig. 2, a kind of microseismic signals monitoring device provided by the present application, including multiple signal amplification modules 201, extremely
Few two signal conversion modules 202, digital filtering module 203 and main control module 204；
The input terminal of signal amplification module 201 is electrically connected with the output end of seismometer；The input terminal of signal conversion module 202
It is electrically connected with the output end of at least one signal amplification module 201, the input terminal of output end and digital filtering module 203 is electrically connected
It connects, the output end of digital filtering module 203 is electrically connected with the input terminal of main control module 204；
Signal amplification module 201, the microseismic signals in a direction for receiving seismometer transmission are raw based on microseismic signals
At amplified signal；
Signal conversion module 202 generates digital signal for being based on amplified signal；
Digital filtering module 203, the digital signal for sending to each signal conversion module 202 are filtered and turn
It changes, generates consequential signal；
Main control module 204 is based on consequential signal, generates monitoring data.
In the embodiment of the present application, signal amplification module 201 can be to be multiple, for ease of description, Fig. 2 is only put with part signal
Big module 201 is illustrated.Each signal amplification module 201 receives microseismic signals 1, microseismic signals 2 and microseismic signals 3 respectively.
Wherein, microseismic signals 1, microseismic signals 2 and microseismic signals 3 are also only the part signals received, can there is more microseisms letter
Number.Meanwhile different microseismic signals can be and be acquired by same seismometer, be also possible to different seismometer acquisitions；And it is different
Microseismic signals can correspond to different directions, such as microseismic signals 1, microseismic signals 2 and microseismic signals 3 respectively correspond samely
The signal of the different directions of shake meter acquisition；In another example microseismic signals 1, microseismic signals 2 and microseismic signals 3 respectively correspond differently
The signal of the different directions of shake meter acquisition.Signal conversion module 202 is at least two, is carried out at the amplified signal acquisition of multichannel
It manages and generates digital signal.
As shown in figure 3, signal amplification module 201 may include the pressure limiting being sequentially connected electrically in possible implementation
Circuit 2011, the first RC filter circuit 2012, the first high-frequency filter circuit 2013, signal amplification chip 2014 and the 2nd RC filtering
Circuit 2015；
Pressure limiting circuit 2011 amplifies core by the first RC filter circuit 2012 and the first high-frequency filter circuit 2013, with signal
The signal input pin of piece 2014 is electrically connected；Signal amplification chip 2014 is converted by the 2nd RC filter circuit 2015 with signal
Module 202 is electrically connected；
Pressure limiting circuit 2011 for receiving microseismic signals, and carries out transient overvoltage protection；
First RC filter circuit 2012, for carrying out pre-filtering processing to microseismic signals；
High-frequency filter circuit 2013, for carrying out High frequency filter to the microseismic signals after pre-filtering；
Signal amplification chip 2014, for carrying out signal amplification to the microseismic signals after High frequency filter；
2nd RC filter circuit 2015 generates amplified signal for being filtered to the amplified microseismic signals of signal.
In possible implementation, signal conversion module 202 includes modulus conversion chip 2021, and modulus conversion chip
Master clock signal and synchronizing clock signals are provided by digital filtering module 203.
In possible implementation, digital filtering module 203 includes digital filtering chip 2031, and digital filtering chip is used for
The 1bit data flow that each signal conversion module 202 is exported carries out filtering extraction, and is converted into 24bit data, generates result
Signal.
As shown in figure 4, in possible implementation, main control module 204, including main control chip 2042 and with master control core
Interface circuit 2041, SD card storage circuit 2043, ethernet communication circuit 2044 and the power circuit 2045 that piece 2042 is electrically connected；
Interface circuit 2041, for by 203 reception result signal of digital filtering module；
SD card storage circuit 2043, for carrying out data storage according to the control of main control chip；
Ethernet communication circuit 2044, for monitoring data to be sent to host computer；
Power circuit 2045, for being depressured to externally input direct current, and be supplied to signal amplification module 201,
Signal conversion module 202, digital filtering module 203 and main control chip 2042.
In some possible embodiments, signal amplification chip 2014 may include CS3301 amplification chip, AD8231 core
Piece or OP07 chip；Modulus conversion chip 2021 may include CS5372 chip, ADS1255 chip or ADS1281 chip；Number
Filtering chip 2031 may include CS5376 chip or design filter based on main control chip；Main control chip 2042 may include
STM32F4 family chip or Cyclone II family chip, such as STM32F429 chip or STM32F439IIT6 chip, and example
Such as EP2C35F672C8 chip.
For the technical solution of clearer description the application, with signal amplification chip 2014 for CS3301 chip, modulus
Conversion chip 2021 is CS5372 chip, and digital filtering chip 2031 is CS5376 chip, and main control chip 2042 is STM32F429
Chip is illustrated.
In possible implementation, as shown in figure 5, signal amplification module 201 includes the pressure limiting circuit being sequentially connected electrically
2011, the first RC filter circuit 2012, the first high-frequency filter circuit 2013, signal amplification chip 2014 and the 2nd RC filter circuit
2015.Detailed description are as follows: pressure limiting circuit 2011 includes adjustable resistance and 3 TVS (Transient Voltage
Suppressor) diode, one of TVS diode are connected to the input signal channel INA+ of differential signal amplification chip 2014
Between INA-, other two TVS diode, a termination INA+ or INA-, the other end are grounded respectively；TVS diode be in order to
The extraneous transient overvoltage inputted suddenly is reduced, the accurate device that can be thus effectively protected acquisition system will not be by wink
Between burn.First RC filter circuit 2012 includes the RC circuit being respectively arranged on input signal channel INA+ and INA-, can be with
Signal is carried out to carry out pre-filtering processing, to reduce the influence of high frequency differential mode noise bring.First high-frequency filter circuit 2013
Capacitor including being set to input signal channel INA+ and INA- can further eliminate the interference of high frequency differential mode noise bring.
2nd RC filter circuit 2015 include 4 groups of RC filter circuits, be set to CS3301 chip OUTR+ and OUTR- and OUTF+ and
Two port differences of OUTF- can be effectively prevented analog-to-digital conversion module and carry out A/D sampling instant occurrence frequency aliasing
(high-frequency signal and low frequency signal are obscured).
In practical application, based on the considerations of CS3301 chip operation, it is also necessary to the analog power and 3.3V of positive and negative 2.5V
Digital power driving, positive and negative 2.5V power supply is connected respectively to VA+, VA- pin of CS3301 chip, and CS3301 chip inputs mould
Formula is set as only INA, and MUX1 pin, which needs to be grounded, drags down level, and MUX0 pin, which needs to connect power supply, becomes Gao Ping.It needs to illustrate
It is that the master clock signal MCLK of CS3301 generates offer by CS5376 filtering chip.
Analog-to-digital conversion module 202 needs the amplified signal provided signal amplification module 201 to convert, i.e., believes amplification
Number be converted into binary digital signal, in possible implementation, circuit as shown in fig. 6, CS5372 chip need it is positive and negative
Analog power, 3.3V digital power and the positive 2.5V reference voltage of 2.5V drives, and positive 2.5V is connected to VA+ pin, negative 2.5V
It being connected to VA- pin, and VA- pin must be connect with VREF- pin, positive 2.5V reference voltage is connected to VREF+ pin,
3.3V digital voltage is connected to VD pin.CS5372 chip has a two-way input signal, two-way input pin be respectively as follows: INR1-,
INR1+, INF1-, INF1+ and INR2-, INR2+, INF2-, INF2+ can connect two panels CS3301 chip as shown in Figure 5, point
It is not connected with output pin OUTR-, OUTR+, OUTF-, OUTF+ of CS3301 amplification chip.The work master of CS5372 chip
Clock signal MCLK generates offer by the CS5376 chip of digital filtering module 203, and there are two types of selections for MCLK frequency, respectively
2.048MHz 1.204MHz.Because there are 4 integrators, to what will be inputted inside 4 nd order modulators of CS5372 chip
Analog signal modulation conversion needs also need to just spend 4 clock period times by 4 integral operationes at digital signal.Therefore,
The rate of the bit stream of output pin MDATA is 512Kbit/s or 216Kbit/s.Meanwhile the MSYNC of CS5372 chip is synchronous
Clock signal is also to generate offer by CS5376 chip.OFST is offset correction signal, and high level is indicated in analog input signal
Increase the offset of about 100mv to eliminate drift.MDATA1 and MDATA2 is data-out signal line.
In possible implementation, CS5376 chip in digital filtering module 203 can reduce sample frequency and filter
HF noise signal, while the 1bit stream compression that CS5372 chip exports being become to the digital value of given length.Physical circuit
As shown in Figure 7.The main function of CS5376 chip is the 1bit data flow progress filtering extraction to the output of CS5372 chip, and will
It is converted into 24bit data.CS5376 chip operation mode is respectively as follows: microprocessor model and EEPROM mould there are two types of selection
Formula.Two kinds of work selections are determined that, when pin BOOT is low level, CS5376 chip is in micro- reason device by pin BOOT BOOT
Mode state；When pin BOOT is high level, CS5376 chip is in EEPROM mode state.In the present embodiment
CS5376 chip operation mode is microprocessor, therefore pin BOOT is grounded.
For SD interface there are two types of operating mode, the selection of both modes depends on the connection type of SDTKI pin.Two kinds of moulds
It is respectively as follows: request operating mode, the mode only ability output data in communication channel request；Continuous operation mode works as data
It is exported immediately when ready.The present embodiment is carried out data transmission using continuous operation mode, if making the port the SD work of CS5376
Make in a continuous mode, to need for SDTKI to be connected to the clock source MCLK/2 of 4MHz or slower.In the present embodiment, by SDTKI
Pin is connected with MCLK/2 pin phase pin.CS5376 chip arrives the storage of filtered data in it under continuous operation mode
In portion FIFO, after FIFO is filled with data, SDDRY signal, CS53776 core are dragged down when the 1st rising edge of SDTKI arrives
Piece starts to carry out data transmission.It is going here and there under clock SDCLK pulse, under pulse, SDDAT constantly carries out data transmission.When the port SD
After all data are read in FIFO, the high impulse of SDDRY signal and SDTKO triggering 100ns is discharged, stops data and passes
It is defeated.Furthermore extra care is needed, if pin 1TRST, pin 2TMS and pin 3TCK is not used in CS5376 chip,
It needs this 3 pin ground connection.
In possible implementation, in the STM32F429 chip and digital filtering module 203 of main control module 204
CS5376 chip has circuit connection as shown in Figure 8, i.e. interface circuit 2041.CS5376 chip is connect by SD serial data
Mouth carries out data transmission with STM32F429 chip, and transmission mode is SPI communication mode.SD interface specific definition sees the above table 3.3.
The port GPIOB for initializing STM32F429 chip, by the SDDRY pin phase of the PB12 pin of STM32F429 chip and CS5376
Connection, the PB13 pin of STM32 is connected with the SDCLK pin of CS5376 chip, the PB14 pin of STM32F429 chip and
The SDDAT pin of CS5376 chip is connected, and furthermore SDTKI pin is connected with the MCLK/2 pin of CS5376 chip.It needs
Illustrate, in the present embodiment, STM32F429 chip is equally applicable to other chips, the application is simultaneously merely to be illustrated
It is not limited.
In possible implementation, while constantly acquisition data, it is also necessary to be saved, be prevented out in real time to data
Existing emergency situations cause data that can not send and lose in time.Therefore acquisition system needs to design memory module, and system is again extensive
It returns to work after work, then the data of preservation are sent to host computer.For using SD card as storage card, SD card as shown in Figure 9 is provided
Storage circuit is worked using spi bus mode.
Main control module 204 needs to be sent to host computer in real time after the filtered data of CS5376 chip are carried out relevant treatment
Processing analysis is carried out, in order to realize the remote data transmission of high quality, ethernet communication mode real-time transmission data can be used,
Circuit is as shown in Figure 10, wherein using LAN8720A chip as ethernet physical layer chip.Wherein MODE [2:0] pin is responsible for
The communication speed and operating mode of transceiver are configured, this system uses full-duplex communication mode, traffic rate 100Mps.NRST
Pin is systematic reset signal line, and when low level triggers.RXN, RXP, TXP, TXN are that signal transmits and receives channel.In order to reduce
Component cost, LAN8720A chip packet possess the REF_CLK clock signal that RMII interface is generated from inexpensive 25MHz crystal oscillator
Functional mode, when NINTSEL pin is low level signal, then chip enters mode work, i.e. REF_CLKOUT mould
Formula.In REF_CLKOUT mode, need to connect the clock source of 25MHz between two pins of XTAL1 and XTAL2, by NINT/
REFCLKO pin is connected with REF_CLK clock line in simplify the media independent interface (RMII), thus can be to REF_CLK
Clock line provides 50MHz clock, and wherein 50MHz clock signal is generated by the phase-locked loop circuit of chip interior.In addition this work
The interrupt function failure of NINT/REFCLKO pin under mode.
In possible implementation, the power circuit 2045 of main control module 204 can be as figs 11-13.Wherein, Figure 11
Turn+5V circuit for 12V；Figure 12 is the 5V turns of+3.3V circuits for main control chip；Figure 13 be for preceding root module 5V turn+
3.3V circuit, preceding root module include signal amplification module 201, analog-to-digital conversion module 202 and digital filtering module 203.
In the present embodiment, based on used chip of illustrating, it is desirable to provide different voltage, such as CS3301 chip need
± 2.5V and 3.3V voltage, CS5372 chip needs ± 2.5V, 3.3V and+2.5V reference voltage, CS5376 chip needs+3.3V
Voltage.Therefore the circuit for needing that Figure 12 and Fig. 3 design voltage is cooperated to convert, as shown in figure 14.
In the embodiment of the present application, monitoring device is filtered by multiple signal amplification modules, at least two signal conversion modules, number
Wave module and main control module composition, the microseismic signals of different directions are received by each road signal amplification module, are turned by two signals
Mold changing block carries out the amplified signal acquisition process of multichannel and generates digital signal, is carried out by digital filtering module to digital signal
Filtering processing generates consequential signal, to reduce the cost of monitoring device, and can have general applicability.
Second aspect, the application provide a kind of microseismic signals monitoring system, as shown in Figure 1, including that monitoring shown in Fig. 2 fills
It sets, further includes seismometer and host computer；The output end of seismometer is electrically connected with the input terminal of signal amplification module 201；Host computer
Pass through network connection with main control module 204.
The third aspect, the application provides a kind of microseismic signals monitoring method, using monitoring device as described above, such as Figure 15
It is shown, comprising:
1501, the microseismic signals for the different directions that seismometer is sent are received by unlike signal amplification module, are based on microseism
Signal generates amplified signal.
1502, multichannel collecting is carried out to amplified signal based at least two signal conversion modules, generates digital signal.
1503, by digital filtering module, the digital signal sent to each signal conversion module is filtered and converts,
Generate consequential signal.
1504, by main control module, monitoring data are generated based on consequential signal.
In possible implementation, signal conversion module includes modulus conversion chip, is turned by digital filtering module for modulus
It changes chip and master clock signal and synchronizing clock signals is provided.
In possible implementation, digital filtering module includes digital filtering chip, is sent to each signal conversion module
Digital signal be filtered and convert, generate consequential signal, comprising:
Filtering extraction is carried out by the 1bit data flow that digital filtering chip exports each signal conversion module, and is converted
At 24bit data, consequential signal is generated.
In the embodiment of the present application, for software implementations, the technology of this paper can be realized by executing the unit of this paper function.
Software code is storable in memory and is executed by processor.Memory can in the processor or portion is real outside the processor
It is existing.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In embodiment provided herein, it should be understood that unless existing clear between the step of embodiment of the method
Sequencing, otherwise execution sequence can arbitrarily adjust.Disclosed device and method, may be implemented in other ways.
For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, only a kind of logic function
It divides, there may be another division manner in actual implementation, such as multiple units or components may be combined or can be integrated into
Another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling or
Direct-coupling or communication connection can be through some interfaces, and the indirect coupling or communication connection of device or unit can be electricity
Property, mechanical or other forms.
Unit may or may not be physically separated as illustrated by the separation member, shown as a unit
Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
If function is realized in the form of SFU software functional unit and when sold or used as an independent product, can store
In a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present application substantially or
Say that the part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, it should
Computer software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
Personal computer, server or network equipment etc.) execute each embodiment method of the application all or part of the steps.And
Storage medium above-mentioned, which includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various, can store program code
Medium.
Although being described in conjunction with the accompanying presently filed embodiment, those skilled in the art can not depart from this Shen
Various modifications and variations are made in the case where spirit and scope please, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (10)
1. a kind of microseismic signals monitoring device, which is characterized in that including multiple signal amplification modules, at least two signal moduluss of conversion
Block, digital filtering module and main control module；
The input terminal of the signal amplification module is electrically connected with the output end of seismometer；The input terminal of the signal conversion module with
The output end of at least one signal amplification module is electrically connected, and the input terminal of output end and the digital filtering module is electrically connected
It connects, the output end of the digital filtering module is electrically connected with the input terminal of the main control module；
The signal amplification module is based on the microseism for receiving the microseismic signals in the direction that the seismometer is sent
Signal generates amplified signal；
Each signal conversion module generates digital signal for carrying out multichannel collecting to the amplified signal；
The digital filtering module, the digital signal for sending to each signal conversion module are filtered and turn
It changes, generates consequential signal；
The main control module is based on the consequential signal, generates monitoring data.
2. monitoring device as described in claim 1, which is characterized in that the signal amplification module, including what is be sequentially connected electrically
Pressure limiting circuit, the first RC filter circuit, the first high-frequency filter circuit, signal amplification chip and the 2nd RC filter circuit；
The pressure limiting circuit amplifies core by the first RC filter circuit and first high-frequency filter circuit, with the signal
The signal input pin of piece is electrically connected；The signal amplification chip is converted by the 2nd RC filter circuit with the signal
Module electrical connection；
The pressure limiting circuit for receiving the microseismic signals, and carries out transient overvoltage protection；
The first RC filter circuit, for carrying out pre-filtering processing to the microseismic signals；
The high-frequency filter circuit, for carrying out High frequency filter to the microseismic signals after pre-filtering；
The signal amplification chip, for carrying out signal amplification to the microseismic signals after High frequency filter；
The 2nd RC filter circuit generates the amplification letter for being filtered to the amplified microseismic signals of signal
Number.
3. monitoring device as claimed in claim 2, which is characterized in that the signal conversion module includes modulus conversion chip,
And the master clock signal and synchronizing clock signals of the modulus conversion chip are provided by the digital filtering module.
4. monitoring device as claimed in claim 3, which is characterized in that the digital filtering module includes digital filtering chip,
The digital filtering chip is used to the 1bit data flow of each signal conversion module output carrying out filtering extraction, and converts
At 24bit data, the consequential signal is generated.
5. monitoring device as claimed in claim 4, which is characterized in that the main control module, including main control chip and with institute
State interface circuit, SD card storage circuit, ethernet communication circuit and the power circuit of main control chip electrical connection；
The interface circuit, for receiving the consequential signal by the digital filtering module；
The SD card storage circuit, for carrying out data storage according to the control of the main control chip；
The ethernet communication circuit, for the monitoring data to be sent to host computer；
The power circuit for being depressured to externally input direct current, and is supplied to the signal amplification module, described
Signal conversion module, the digital filtering module and the main control chip.
6. monitoring device as claimed in claim 5, which is characterized in that the signal amplification chip include CS3301 chip,
AD8231 chip or OP07 chip；The modulus conversion chip includes CS5372 chip, ADS1255 chip or ADS1281 chip；
The digital filtering chip is included CS5376 chip or is designed based on the main control chip；The main control chip includes STM32F4
Family chip or Cyclone II family chip.
7. a kind of microseismic signals monitor system, which is characterized in that including the monitoring dress as described in claim 1 to 6 any one
It sets, further includes seismometer and host computer；
The output end of the seismometer is electrically connected with the input terminal of the signal amplification module；
The host computer and the main control module communicate to connect.
8. a kind of microseismic signals monitoring method, using the monitoring device as described in claim 1 to 6 any one, feature exists
In, comprising:
The microseismic signals that the different directions that seismometer is sent are received by the different signal amplification modules, based on described micro-
It shakes signal and generates amplified signal；
Multichannel collecting is carried out to the amplified signal based at least two signal conversion modules, generates the number letter
Number；
By the digital filtering module, the digital signal that each signal conversion module is sent is filtered and is turned
It changes, generates the consequential signal；
By the main control module, the monitoring data are generated based on the consequential signal.
9. monitoring method as claimed in claim 8, the signal conversion module includes modulus conversion chip, which is characterized in that
Master clock signal and synchronizing clock signals are provided by the digital filtering module for the modulus conversion chip.
10. monitoring method as claimed in claim 8, the digital filtering module includes digital filtering chip, which is characterized in that
The digital signal sent to each signal conversion module is filtered and converts, and generates the consequential signal,
Include:
The 1bit data flow of each signal conversion module output is subjected to filtering extraction by the digital filtering chip, and
24bit data are converted into, the consequential signal is generated.
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| CN201910586609.4A CN110187381A (en) | 2019-07-02 | 2019-07-02 | A kind of microseismic signals monitoring device, system and method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203643617U (en) * | 2014-01-02 | 2014-06-11 | 安徽理工大学 | High-precision multichannel micro-seismic signal collection system |
| US20150081219A1 (en) * | 2013-09-19 | 2015-03-19 | Deep Imaging Technologies, Inc. | Coherent transmit and receiver bi-static electromagnetic geophysical tomography |
| CN206096488U (en) * | 2016-09-28 | 2017-04-12 | 桂林电子科技大学 | Microseism data acquisition and memory system based on STM32 |
| CN107784795A (en) * | 2017-11-28 | 2018-03-09 | 桂林电子科技大学 | A kind of microseismic signals intellectual monitoring identification equipment and recognition methods |
-
2019
- 2019-07-02 CN CN201910586609.4A patent/CN110187381A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150081219A1 (en) * | 2013-09-19 | 2015-03-19 | Deep Imaging Technologies, Inc. | Coherent transmit and receiver bi-static electromagnetic geophysical tomography |
| CN203643617U (en) * | 2014-01-02 | 2014-06-11 | 安徽理工大学 | High-precision multichannel micro-seismic signal collection system |
| CN206096488U (en) * | 2016-09-28 | 2017-04-12 | 桂林电子科技大学 | Microseism data acquisition and memory system based on STM32 |
| CN107784795A (en) * | 2017-11-28 | 2018-03-09 | 桂林电子科技大学 | A kind of microseismic signals intellectual monitoring identification equipment and recognition methods |
Non-Patent Citations (5)
| Title |
|---|
| JIANXIAN CAI，等: "research status of virtual instrument technology and its prospect in seismic observation", 《IEEE》 * |
| 张建光，等: "微震监测系统中信号检测电路的设计", 《微处理机》 * |
| 毛小波，等: "一种新型微破裂信号并行采集电路的设计与实现", 《科学技术与工程》 * |
| 缪杰: "地震微震信号采集系统研究与设计", 《中国优秀硕士学位论文全文数据库》 * |
| 蔡建羡，等: "多通道微震信号采集系统设计", 《工矿自动化》 * |
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