CN110308482A - The AD conversion and data-storage system and method for seismic exploration data wireless acquisition node - Google Patents

The AD conversion and data-storage system and method for seismic exploration data wireless acquisition node Download PDF

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Publication number
CN110308482A
CN110308482A CN201910727690.3A CN201910727690A CN110308482A CN 110308482 A CN110308482 A CN 110308482A CN 201910727690 A CN201910727690 A CN 201910727690A CN 110308482 A CN110308482 A CN 110308482A
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data
time
seismic
conversion
module
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Inventor
董恩清
罗思凡
沈鑫
王莹
韩利
毕研庆
张德敬
崔文韬
高翔
孙祺
常树旺
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Shandong University
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Shandong University
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/003—Seismic data acquisition in general, e.g. survey design
    • 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
    • G01V1/223—Radioseismic systems
    • 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
    • G01V1/242—Seismographs
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0421—Multiprocessor system
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2200/00—Details of seismic or acoustic prospecting or detecting in general
    • G01V2200/10—Miscellaneous details
    • G01V2200/12—Clock synchronization-related issues
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/21—Pc I-O input output
    • G05B2219/21137—Analog to digital conversion, ADC, DAC
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/22—Pc multi processor system
    • G05B2219/2214—Multicontrollers, multimicrocomputers, multiprocessing
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25039—Clock
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25187—Transmission of signals, medium, ultrasonic, radio

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Geophysics (AREA)
  • Automation & Control Theory (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Seismic prospecting is to solve that OIL AND GAS EXPLORATION is most important, a kind of most effective method in geophysical exploration.The design and development of seismic prospecting wireless acquisition system is a research hotspot at present.Main research of the invention has: (1) high-resolution, the seismic data analog-to-digital conversion of high-efficiency, selecting conversion accuracy is 32, maximum sample rate may be configured as the ADS1282 modulus conversion chip of 4000Hz, can obtain high fidelity, high-resolution digital signal；(2) it uses STM32L1 series super low power consuming single chip processor as micro-control unit, effectively extends the wireless acquisition node field work time；(3) time synchronization of seismic exploration data wireless acquisition system, for guarantee seismic prospecting data collecting precision, by GPS time service and single-chip microcontroller timer count combine in the way of, time precision is accurate to Microsecond grade；(4) seismic data is locally stored, by transplanting FatFs file system, by the seismic data after sampling according to certain format, being stored sequentially in local TF card with timeline.

Description

The AD conversion and data-storage system and method for seismic exploration data wireless acquisition node
Technical field
The invention belongs to field of seismic exploration, and in particular to the AD conversion and data of seismic exploration data wireless acquisition node The exploitation of storage system.
Background technique
Seismic prospecting is to survey the important means of the subterranean resource such as petroleum, natural gas, coal mine, is ground in subsurface fault, the earth's crust Aspect is studied carefully also with very extensive.Seismic method propagates rule using the seismic wave that controlled source generates in the stratum of different elasticity Rule is to survey geological condition.Seismic wave is in underground propagation, when the elastic parameter of formation rock changes, seismic wave field It changes therewith, the seismic wave after variation is received by seismic instrument, it can be anti-after the seismic processing software interpretation of profession Subsurface geologic structures and lithology are performed, achievees the purpose that geological prospecting.Seismic detector is a kind of instrument that can receive record seismic wave, It is seismographic to develop the development for being directly related to seismic exploration technique.Earthquake data acquisition record system is that collection seismic data passes The complication system for feeling, acquire, transmit, handling and being controlled in integrated high-precision, high-resolution, high reliability, as earth object Manage the data acquisition equipment of exploration and development front end.
Summary of the invention
In order to solve deficiency in the prior art, the present invention is intended to provide a kind of high-precision, high-resolution, high reliability The AD conversion and data-storage system and method for seismic exploration data wireless acquisition node.
In order to realize the above functions, the present invention will use following technical scheme:
A kind of AD conversion and data-storage system of seismic exploration data wireless acquisition node, it is characterised in that be equipped with host computer, Power module, acquisition node, mainboard control module, wireless communication module, data memory module, GPS module, the mainboard control Module is connected with power module, GPS module, acquisition node respectively, mainboard control module through through wireless communication module respectively with Host computer, acquisition node, GPS module and it is connected, wherein the acquisition node includes geophone, modulus conversion chip With AD plate MCU, modulus conversion chip is connected with geophone and modulus conversion chip respectively, and acquisition node can be used to acquire Seismic wave is carried out analog-to-digital conversion, controls the reading of ADS1282 change data and the configuration of register by seismic wave；The AD plate MCU is used to receive the configuration information for the modulus conversion chip that mainboard control module sends over to configure adopting for modulus conversion chip Sample rate, the data for reading ADS1282 conversion, and upload to mainboard control module；Mainboard is controlled mould by the data access module The acquired data storage that block forwards passes data into TF card, or when receiving mainboard control module data transfer request It is defeated to arrive mainboard control module；Sending time request message and reception passback message of the mainboard control module to GPS module.
Modulus conversion chip of the present invention is ADS1282 modulus conversion chip, and modulus conversion chip is arranged in AD plate MCU Sample rate；ADS1282 modulus conversion chip is selected, conversion accuracy is up to 32, and maximum sample rate can be set as by programming 4000Hz, the seismic waveform that can meet geophone acquisition have the characteristics that high dynamic, broadband, high s/n ratio, obtain high Fidelity, high-resolution digital signal.
Wireless communication module of the present invention includes ZigBee module and WiFi module, wherein it mainly uses ZigBee Network receives the control message of host computer, using the data of WiFi network passback mainboard MCU to host computer.
Host computer of the present invention is TCP(Transmission Control Protocol) server.
Mainboard control module of the present invention is mainboard MCU.
Mainboard MCU and AD plate MCU of the present invention is STM32L1 series super low power consuming single chip processor, in order to effectively prolong The long wireless acquisition node field work time.
Time of the present invention obtains in such a way that GPS time service and mainboard MCU timer count combine, and passes through GPS Time service, mainboard MCU obtain real-time time, the time precision to second, recycle mainboard MCU timer count, obtain current count Value, will be accurate to microsecond, and guarantee the precision of seismic prospecting data collecting the time.
Low profile edge file system, i.e. FatFs file system are transplanted in mainboard MCU of the present invention, convenient for better The read-write operation for realizing TF card allows for the seismic data after sampling to be stored in local TF card according to certain format, receive To after the transmission data command of TCP server, corresponding data are searched from TF card according to source time, and transmit out It goes.
A kind of AD conversion and data-storage system of seismic exploration data wireless acquisition node, it is characterised in that including following Step
Step 1: coordinator node, acquisition node booting, the modules such as WiFi, ZigBee, GPS are online；
Step 2:WiFi, after ZigBee is online, inform that TCP server can work by ZigBee-network, then mainboard MCU is logical Cross the sample rate order that ZigBee-network receives the change AD collection plate that TCP server is sent；
Step 3: master board obtains the location information of GPS after waiting GPS to stablize, and is sent to master board module by ZigBee, So that TCP server draws node map；
Step 4: after master board receives beginning acquisition, the counting precision of GPS time information and mainboard timer is obtained, Middle GPS time service is for obtaining real-time time.Since the time is only accurate to the second, it is unsatisfactory for the requirement of acquisition precision, it is therefore desirable to The timer count for using mainboard simultaneously sends a second pulse signal to mainboard MCU every active in 1 second using GPS module The characteristic of PPS.The timer interruption time that mainboard MCU is arranged is 2 seconds, after mainboard MCU receives PPS signal, set timer, It starts counting it from initial value, timer is avoided to generate unnecessary spilling.After mainboard MCU obtains GPS time, then reads and determine When device current count value, precision can be adjusted to Microsecond grade, while AD collection plate being notified to start to be switched on, by this time information Time as first earthquake sampled data；
Step 5:AD collection plate transmits data to master board, the notice when master board receives first data packet TCP server collecting work is normal, and collection plate keeps acquisition, until work terminates；
Step 6: master board unpacked data, according to the binary system created in certain format write-in TF card by earthquake sampled data Shake file；
Step 7: master board receives the data back order that TCP server is forwarded by ZigBee-network, according in order Earthquake source explosive time, turn around time length message are obtained by calculation the offset of corresponding seismic data hereof, and mention It takes effective seismic data to transmit to wireless plate module, then TCP server is sent to by WiFi module；
Step 8: if TCP server has detected packet loss, master board retransmits the data packet lost according to TCP server demand, So far one acquisition is completed, data back order next time is waited to arrive at.
The present invention selects ADS1282 modulus conversion chip, can obtain high fidelity, high-resolution digital signal；Make It uses high-performance STM32L1 series super low power consuming single chip processor as micro-control unit, effectively extends wireless acquisition node field work Time.By GPS time service and single-chip microcontroller timer count combine in the way of, time precision is accurate to Microsecond grade；Pass through shifting FatFs file system is planted, the seismic data after sampling is stored in local TF card according to certain format, is receiving host computer Transmission data command after, corresponding data are searched from TF card according to source time, and transmit away.With time essence Degree height, longevity of service, digital signal high-fidelity, high-resolution, the advantages that being locally stored.
Detailed description of the invention
Fig. 1 is this system block diagram of the invention.
Fig. 2 is acquired, conversion, storage, transmission, TCP by the sine wave signal of signal generator generation 10Hz, 15V The waveform finally restored after SEG-Y file is written after server process.
Fig. 3 is to simulate focus using weight in field test, the earthquake simulation signal after moving-coil geophone pickup, through adopting SEG-Y formatted file is written after TCP server processing in collection, conversion, storage, transmission.Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in further detail.The present invention realizes sparse based on tensor The process of image registration of expression mainly comprises the steps that
Step 1: coordinator node, acquisition node booting, the modules such as WiFi, ZigBee, GPS are online；
Step 2:WiFi, it after ZigBee is online, informs that TCP server can work by ZigBee-network, then receives TCP clothes The order for device change AD sample rate of being engaged in；
Step 3: master board obtains the location information of GPS after waiting GPS to stablize, and is sent to TCP server by ZigBee, so as to TCP server draws node map；
Step 4: after master board receives beginning acquisition, the counting precision of GPS time information and mainboard timer is obtained, Middle GPS time service is for obtaining real-time time.Since the time is only accurate to the second, it is unsatisfactory for the requirement of acquisition precision, it is therefore desirable to The timer count for using mainboard simultaneously sends a second pulse signal to mainboard MCU every active in 1 second using GPS module The characteristic of PPS.The timer interruption time that mainboard MCU is arranged is 2 seconds, after mainboard MCU receives PPS signal, set timer, It starts counting it from initial value, timer is avoided to generate unnecessary spilling.After mainboard MCU obtains GPS time, then reads and determine When device current count value, precision can be adjusted to Microsecond grade, while AD collection plate being notified to start to be switched on, by this time information Time as first earthquake sampled data；
Step 5:AD collection plate transmits data to master board, the notice when master board receives first data packet TCP server collecting work is normal, and collection plate keeps acquisition, until work terminates；
Step 6: master board unpacked data, according to the binary system created in certain format write-in TF card by earthquake sampled data Shake file；
Step 7: master board once receives data back order, according to the earthquake source explosive time in order, turn around time length The offset of corresponding seismic data hereof is obtained by calculation in message, and extracts effective seismic data and transmit TCP server is sent to wireless plate MCU, then by WiFi module；
Step 8: if TCP server has detected packet loss, master board retransmits the data packet lost according to TCP server demand, So far one acquisition is completed, data back order next time is waited to arrive at.

Claims (10)

1. a kind of AD conversion and data-storage system of seismic exploration data wireless acquisition node, it is characterised in that be equipped with upper Mechanical, electrical source module, acquisition node, mainboard control module, wireless communication module, data memory module, GPS module, the mainboard Control module is connected with power module, GPS module, acquisition node respectively, and mainboard control module is through through wireless communication module point Not with host computer, acquisition node, GPS module and be connected, wherein the acquisition node includes geophone, analog-to-digital conversion Chip and AD plate MCU, modulus conversion chip are connected with geophone and modulus conversion chip respectively.
2. the AD conversion and data-storage system of a kind of seismic exploration data wireless acquisition node according to claim 1, It is characterized in that modulus conversion chip is ADS1282 modulus conversion chip, the sample rate of modulus conversion chip is arranged in AD plate MCU； ADS1282 modulus conversion chip is selected, conversion accuracy is up to 32, and maximum sample rate can be set as 4000Hz by programming, can The seismic waveform for meeting geophone acquisition has the characteristics that high dynamic, broadband, high s/n ratio, obtains high fidelity, height The digital signal of resolution ratio.
3. the AD conversion and data-storage system of a kind of seismic exploration data wireless acquisition node according to claim 1, It is characterized in that the wireless communication module includes ZigBee module and WiFi module, wherein it mainly uses ZigBee-network The control message for receiving host computer, using the data of WiFi network passback mainboard MCU to host computer.
4. the AD conversion and data-storage system of a kind of seismic exploration data wireless acquisition node according to claim 3, It is characterized in that host computer is TCP (Transmission Control Protocol) server.
5. the AD conversion and data-storage system of a kind of seismic exploration data wireless acquisition node according to claim 1, It is characterized in that mainboard control module is mainboard MCU.
6. the AD conversion and data-storage system of a kind of seismic exploration data wireless acquisition node according to claim 1, It is characterized in that mainboard MCU and AD plate MCU is STM32L1 series super low power consuming single chip processor, wirelessly adopted in order to effectively extend Collect the node field work time.
7. the AD conversion and data-storage system of a kind of seismic exploration data wireless acquisition node according to claim 1, It is characterized in that the time obtains in such a way that GPS time service and mainboard MCU timer count combine, pass through GPS time service, mainboard MCU obtains real-time time, the time precision to second, recycles mainboard MCU timer count, current count value is obtained, by the time It is accurate to microsecond, guarantees the precision of seismic prospecting data collecting.
8. the AD conversion and data-storage system of a kind of seismic exploration data wireless acquisition node according to claim 7, It is characterized in that the timer interruption time of setting mainboard MCU is 2 seconds, after mainboard MCU receives PPS signal, set timer, It starts counting it from initial value, timer is avoided to generate unnecessary spilling.After mainboard MCU obtains GPS time, then reads and determine When device current count value, precision can be adjusted to Microsecond grade, while AD collection plate being notified to start to be switched on, by this time information Time as first earthquake sampled data.
9. the AD conversion and data-storage system of a kind of seismic exploration data wireless acquisition node according to claim 1, It is characterized in that low profile edge file system, i.e. FatFs file system are transplanted in mainboard MCU, convenient for preferably realizing TF card Read-write operation, allow by sampling after seismic data be stored in local TF card according to certain format, receiving TCP service After the transmission data command of device, corresponding data are searched from TF card according to source time, and transmit away.
10. a kind of AD conversion and date storage method of seismic exploration data wireless acquisition node, it is characterised in that including following Step:
Step 1: coordinator node, acquisition node booting, the modules such as WiFi, ZigBee, GPS are online；
Step 2:WiFi, after ZigBee is online, inform that TCP server can work by ZigBee-network, then mainboard MCU is logical Cross the sample rate order that ZigBee-network receives the change AD collection plate that TCP server is sent；
Step 3: master board obtains the location information of GPS after waiting GPS to stablize, and is sent to master board module by ZigBee, So that TCP server draws node map；
Step 4: after master board receives the beginning acquisition that TCP server is forwarded by ZigBee-network, obtaining GPS time The counting precision information of information and the timer of master board, while AD collection plate being notified to start to be switched on, this time information is made For the time of first earthquake sampled data；
Step 5:AD collection plate transmits data to master board, the notice when master board receives first data packet TCP server collecting work is normal, and collection plate keeps acquisition, until work terminates；
Step 6: master board unpacked data, according to the binary system created in certain format write-in TF card by earthquake sampled data Shake file；
Step 7: master board receives the data back order that TCP server is forwarded by ZigBee-network, according in order Earthquake source explosive time, turn around time length message are obtained by calculation the offset of corresponding seismic data hereof, and mention It takes effective seismic data to transmit to wireless plate module, then TCP server is sent to by WiFi module；
Step 8: if TCP server has detected packet loss, master board retransmits the data packet lost according to TCP server demand, So far one acquisition is completed, data back order next time is waited to arrive at.
CN201910727690.3A 2019-08-08 2019-08-08 The AD conversion and data-storage system and method for seismic exploration data wireless acquisition node Withdrawn CN110308482A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110554430A (en) * 2019-09-10 2019-12-10 山东知微智成电子科技有限公司 AD conversion and data storage system and method for wireless seismic exploration data acquisition node
CN111399033A (en) * 2020-03-31 2020-07-10 中国科学院地质与地球物理研究所 Flow type concurrent sampling earthquake collector
CN111580155A (en) * 2020-04-28 2020-08-25 山东知微智成电子科技有限公司 Local storage seismic exploration node instrument system with 4G remote monitoring function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110554430A (en) * 2019-09-10 2019-12-10 山东知微智成电子科技有限公司 AD conversion and data storage system and method for wireless seismic exploration data acquisition node
CN111399033A (en) * 2020-03-31 2020-07-10 中国科学院地质与地球物理研究所 Flow type concurrent sampling earthquake collector
CN111399033B (en) * 2020-03-31 2021-06-18 中国科学院地质与地球物理研究所 Flow type concurrent sampling earthquake collector
CN111580155A (en) * 2020-04-28 2020-08-25 山东知微智成电子科技有限公司 Local storage seismic exploration node instrument system with 4G remote monitoring function

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