CN108614290A - A kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies - Google Patents
A kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies Download PDFInfo
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- CN108614290A CN108614290A CN201810458036.2A CN201810458036A CN108614290A CN 108614290 A CN108614290 A CN 108614290A CN 201810458036 A CN201810458036 A CN 201810458036A CN 108614290 A CN108614290 A CN 108614290A
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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
- G01V1/181—Geophones
- G01V1/184—Multi-component geophones
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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
- G01V1/223—Radioseismic systems
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The wireless distributed three-component seismic data acquisition system based on LoRa technologies that the present invention provides a kind of, including Monitor Computer Control System and seismic data acquisition unit, Monitor Computer Control System, friendly human-computer interaction interface is provided for system for acquiring seismic data, complete the parameter configuration to system for acquiring seismic data, reception, storage and the display of gathered data and seismic waveform real-time display and playback；Seismic data acquisition unit, for seismic signal acquisition, gathered data be locally stored and the wireless transmission of gathered data.The beneficial effects of the invention are as follows：The technical solution provided through the invention, significantly reduce construction cost and save human resources etc., the probability of happening of noise jamming and communication failure is reduced, the portability and adaptability of seismic instrument are improved, keeps the acquisition of seismic data more convenient.
Description
Technical field
The present invention relates to field of seismic data acquisition more particularly to a kind of wireless distributed three-components based on LoRa technologies
System for acquiring seismic data.
Background technology
In recent years, it is put into the huge fund of China's energy, traffic and Process of Urbanization Construction, all kinds of engineering investigation projects are increasingly
Increase, engineering geophysics is promoted to become the hot topic in current geology industry.System for acquiring seismic data is as earthquake data acquisition
Special equipment, the intuitive and validity solved the problems, such as due to it and as the main tool in engineering geophysics, in seismic prospecting
With vital effect is played in engineering construction.
Wired seismic detector is due to being not easy to connect up there is cable heaviness, there are crosstalk noise and appearances between adjacent transmission lines
Easily there is the shortcomings of cable interface failure, brings many inconvenience to engineering exploration and geological mapping, gradually can not meet market
Demand, wireless communication mode just compensate for these deficiencies, improve the portability and adaptability of seismic instrument.
Invention content
The wireless distributed three-component seismic data acquisition system based on LoRa technologies that the present invention provides a kind of, including it is upper
Position machine monitoring system and one or more seismic data acquisition unit；
The Monitor Computer Control System is the control platform of system for acquiring seismic data, using based on virtual instrument technique
LabVIEW is developed, and the Monitor Computer Control System includes LoRa wireless modules and PC machine main control platform；The PC machine master control
Platform is that a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies is provided with human-computer interaction circle
Face, the human-computer interaction interface include parameter setting module, data communication and preprocessing module and seismic waveform display module；Institute
Parameter setting module is stated for the configuration to earthquake signal amplification factor, sampling rate parameter；The data communication and pretreatment mould
Block is used for the wireless telecommunications to the Monitor Computer Control System and the seismic data acquisition unit and the reception of gathered data, deposits
Storage and display；The seismic waveform display module is used for the display of seismic waveform；By the human-computer interaction interface, the master control
Platform controls the parameter configuration of the seismic data acquisition unit, the reality of the reception of gathered data, storage and display and seismic waveform
When show and playback；
The seismic data acquisition unit includes geophone, signal processing circuit, analog to digital conversion circuit, ARM processing
Device, GPS module, SD card, LoRa wireless modules, 12V lithium batteries, analog power and digital power；The earthquake data acquisition list
Member for the acquisition of seismic signal, gathered data be locally stored and the wireless transmission of gathered data, the nothing of gathered data
Line transmission is that the data of acquisition are sent to the Monitor Computer Control System in such a way that LoRa technologies wirelessly communicate；Describedly
It shakes wave detector and detects seismic signal, seismic signal is amplified by the signal processing circuit first, then passes through the mould
Number conversion circuit carries out the conversion of digital filtering processing and analog signal and digital signal, is then stored in the SD card, into
Row is locally stored；Gathered data is sent to the Monitor Computer Control System, while institute finally by the LoRa wireless modules
It states LoRa wireless modules and receives seismic signal amplification factor that the Monitor Computer Control System is sent and sampling rate parameter configuration
Instruction, the arm processor handle the described instruction received, and the seismic data acquisition unit responds；Institute
Analog power and the digital power is stated to power for the seismic data acquisition unit.
Further, the Monitor Computer Control System is the application built by portable computer and LabVIEW software platforms
Software, for the design of interactive interface, the configuration of parameter, processing, storage and the display of gathered data and and seismic waveform
Display.
Further, the LoRa wireless modules use LoRa communication protocols, realize the reception of seismic signal gathered data
And the transmission of parameter configuration instruction.
Further, the geophone uses 3-component earthquake detector, completes the detection of seismic signal, and export
Three-pass DINSAR signal.
Further, the signal processing circuit is formed using programmable amplifier PGA281 and its peripheral circuit, the letter
The amplification factor of number processing circuit has 1 times, 2 times, 4 times, 8 times, 16 times and 32 times, can be by program to the signal processing circuit
Amplification factor be adjusted, the input and output of the signal processing circuit are differential signal.
Further, analog-digital conversion circuit as described realizes digital filtering and analog-to-digital conversion, in analog-digital conversion circuit as described
AD sample rates include 200Hz, 600Hz, 1000Hz and 2000Hz, the AD sample rates can be adjusted according to program；This
Outside, multichannel sigma-delta type ADC is used in analog-digital conversion circuit as described, and the three-pass DINSAR signal of acquisition is handled simultaneously.
Further, when the GPS module provides latitude and longitude information and system for the system for acquiring seismic data
Between information；Using the SD card for seismic signal gathered data to be locally stored.
Further, what the 12V lithium batteries were selected is non-magnetic ferric phosphate lithium cell；The analog power and described
Digital power is made of linear regulator chip, and the break-make of the digital power is by button control, the break-make of the analog power
The enable signal control sent out by the arm processor；The analog power and the digital power are respectively to the earthquake number
It individually powers according to the analog portion and numerical portion of collecting unit, avoids digital signal and analog signal interferes with each other.
Further, the LoRa wireless modules in the seismic data acquisition unit receive the ipc monitor system
It unites after the seismic signal amplification factor sent, the AD sampling rate parameters configuration information, the arm processor response instruction is matched
Set parameter.
The advantageous effect that technical solution provided by the invention is brought is：
1, system for acquiring seismic data is made the mobility and better adaptability of instrument, is avoided by the way of wireless communication
Remote mountains, jungle etc. are not easy the inconvenience that wireline mode is brought in the adverse circumstances for arranging cable；
2, by the way of wireless communication, construction is more prone to system for acquiring seismic data, significantly reduces and is constructed into
This, saves the resources such as manpower, time；
3, system for acquiring seismic data is by the way of wireless communication, avoids wired seismic detector multicore cable and arbitrary
The noise jammings such as crosstalk noise, reflecting background between adjacent transmission lines；
4, system for acquiring seismic data avoids potential cable connector wiring faults problem by the way of wireless communication,
Reduce the generation of communication failure.Meanwhile wireless mode does not need a large amount of cable as transmission medium, to greatly reduce
Due to the trample of animal, collision, the reasons such as artificial destruction lead to the probability of equipment damage；
5, wireless mode does not need cable connection in communication process, and layout networking is more convenient, and scalability is strong；
6, system for acquiring seismic data uses LoRa technologies, has communication distance compared with other wireless communication techniques
The advantages such as far, system power dissipation is low；
7, analog to digital conversion circuit uses sigma-delta type modulus conversion chip ADS1274, is replaced with digital filtering traditional big
Analogue filter circuit is measured, digitalized design method effectively prevents temperature drift and the influence of noise of analog device, is greatly improved
Signal-to-noise ratio and Dynamic Range；
8, it is aobvious to complete systematic parameter configuration, gathered data and seismic waveform for the friendly host computer human-computer interaction interface of design
Show, operation is more convenient.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies in the embodiment of the present invention
Structure chart；
Fig. 2 is the ground of the wireless distributed three-component seismic data acquisition system based on LoRa technologies in the embodiment of the present invention
Shake data acquisition unit work flow diagram；
Fig. 3 is that wireless fraction 3-component earthquake cloth data collecting system based on LoRa technologies is in the embodiment of the present invention
System work flow diagram.
Specific implementation mode
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
The specific implementation mode of the present invention.
The embodiment provides a kind of, and the wireless distributed three-component seismic data acquisition based on LoRa technologies is
System.
Referring to FIG. 1, Fig. 1 is a kind of wireless distributed 3-component earthquake number based on LoRa technologies in the embodiment of the present invention
According to the structure chart of acquisition system, a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies, including it is upper
Position machine monitoring system 1 and seismic data acquisition unit 2；Several building blocks are described in detail below：
(1) Monitor Computer Control System 1
The Monitor Computer Control System 1 is the control platform of wireless distributed three-component seismic data acquisition system, mainly
The parameter configuration to seismic data acquisition unit 2, processing, storage, display to gathered data are completed, seismic waveform is shown；Institute
It includes LoRa wireless modules 101 and PC machine main control platform 102 to state Monitor Computer Control System 1；
In the present embodiment, the PC machine main control platform 102 is used is based on LoRa skills based on virtual instrument technique LabVIEW
The host computer monitoring software of the wireless distributed three-component seismic data acquisition system of art carries for the Monitor Computer Control System 1
For friendly human-computer interaction interface, personnel easy to operation operate system；The human-computer interaction interface includes：Parameter is set
Set, data communication and pretreatment and seismic waveform show three function modules, for being controlled to seismic data acquisition unit 2
System, the parameter configuration of Earthquake occurrence control data acquisition unit 2, reception, analyzing processing and the storage of gathered data, gathered data and ground
Seismic wave shape real-time display.This four functions are described in detail as follows：
(a) seismic data acquisition unit 2 is controlled
The Monitor Computer Control System 1 formulates corresponding communications protocol with the seismic data acquisition unit 2, described upper
Machine monitoring system 1 realizes the control to the seismic data acquisition unit 2 by sending control instruction, such as：Earthquake is arranged to believe
The functions such as number acquisition parameter.
(b) parameter configuration is carried out to seismic data acquisition unit 2
Earthquake signal amplification factor and AD sample rates are set in human-computer interaction interface, sent by LoRa wireless modules 101
To the seismic data acquisition unit 2.
(c) reception, analyzing processing and storage of gathered data
The Monitor Computer Control System 1 wirelessly receives the seismic data by LoRa wireless modules 101 and adopts
Collect the gathered data that unit 2 is sent, and local is stored in the form of text after carrying out Data Analysis Services to the data of acquisition.
(d) gathered data and seismic waveform real-time display
Real-time display seismic signal gathered data, seismic waveform and current time, seismic waveform can play back.
(2) seismic data acquisition unit 2
The seismic data acquisition unit 2 includes geophone 201, signal processing circuit 202, analog to digital conversion circuit
203, in arm processor 204, GPS module 205, SD card 206, LoRa wireless modules 207,12V lithium batteries 208, power module
Analog power 209, digital power 210, geophone 211, signal processing circuit 212, analog to digital conversion circuit 213, ARM processing
Device 214, GPS module 215, SD card 216, LoRa wireless modules 217,12V lithium batteries 218, analog power 219, digital power
220.Wherein, seismic data acquisition unit 2 is made of multiple acquisition substations, and acquisition substation 2_1 includes geophone 201, letter
Number processing circuit 202, analog to digital conversion circuit 203, arm processor 204, GPS module 205, SD card 206, LoRa wireless modules
207,12V lithium batteries 208, analog power 209 and digital power 210；Acquisition substation 2_2 includes geophone 211, at signal
Manage circuit 212, analog to digital conversion circuit 213, arm processor 214, GPS module 215, SD card 216, LoRa wireless modules 217,12V
Lithium battery 218, analog power 219 and digital power 220.
In acquisition substation 2_1, geophone 201 there are three signal export, respectively with three signal processing circuits 202
It is connected, for detecting seismic signal；Signal processing circuit 202 and geophone 201, analog to digital conversion circuit 203, analog power
209 are connected, and amplify for seismic signal, and the amplification factor size of seismic signal can be adjusted according to program, and amplification factor has 1
Again, 2 times, 4 times, 8 times, 16 times, 32 times；Analog to digital conversion circuit 203 and signal processing circuit 202, arm processor 204, simulation electricity
Source 209 be connected, convert analog signals into digital signal, AD sample rate sizes are adjustable, sample rate have 200Hz, 600Hz,
1000Hz、2000Hz；Arm processor 204 and analog to digital conversion circuit 203, GPS module 205, SD card 206, LoRa wireless modules
207, digital power 210 is connected, and is used for Earthquake occurrence control data acquisition unit normal operation；GPS module 205 and arm processor
204, digital power 210 is connected, and latitude and longitude information and system time information are provided for system for acquiring seismic data；SD card 206
It is connected with arm processor 204, digital power 210, stores gathered data；LoRa wireless modules 207 and arm processor 204, number
Word power supply 210 is connected, and for sending gathered data to ipc monitor system wireless, and receives what Monitor Computer Control System issued
Parameter configuration instructs；12V lithium batteries 208 are connected 210 with analog power 209, digital power, are analog power 209 and number electricity
Source 210 powers；Analog power 209 is connected with 12V lithium batteries 208, signal processing circuit 202, is seismic data acquisition unit mould
Quasi- circuit part provides electric energy；Digital power 210 and 12V lithium batteries 208, arm processor 204, GPS module 205, SD card 206,
LoRa wireless modules 207 are connected, and electric energy is provided for seismic data acquisition unit digital circuits section.
In acquisition substation 2_2, geophone 211 there are three signal export, respectively with three signal processing circuits 212
It is connected, for detecting seismic signal；Signal processing circuit 212 and geophone 211, analog to digital conversion circuit 213, analog power
219 are connected, and amplify for seismic signal and filter；Analog to digital conversion circuit 213 and signal processing circuit 212, arm processor 214,
Analog power 219 is connected, for converting analog signals into digital signal；Arm processor 214 and analog to digital conversion circuit 213,
GPS module 215, SD card 216, LoRa wireless modules 217, digital power 220 are connected, just for Earthquake occurrence control data acquisition unit
Often operation；GPS module 215 is connected with arm processor 214, digital power 220, and longitude and latitude is provided for system for acquiring seismic data
Information and system time information；SD card 216 is connected with arm processor 214, digital power 220, stores gathered data；LoRa
Wireless module 217 is connected with arm processor 214, digital power 220, for sending acquisition number to ipc monitor system wireless
According to, and receive the parameter configuration instruction that Monitor Computer Control System issues；12V lithium batteries 218 and analog power 219, digital power
Connected 220, provide electric energy for analog power 219 and digital power 220；Analog power 219 and 12V lithium batteries 218, signal processing
Circuit 212 is connected, and electric energy is provided for seismic data acquisition unit artificial circuit part；Digital power 220 and 12V lithium batteries 218,
Arm processor 214, GPS module 215, SD card 216, LoRa wireless modules 217 are connected, and are seismic data acquisition unit number electricity
Road part provides electric energy.
Referring to FIG. 2, Fig. 2 is that the wireless distributed three-component seismic data based on LoRa technologies is adopted in the embodiment of the present invention
The seismic data acquisition unit work flow diagram of collecting system, includes the following steps：
S201：Monitor Computer Control System configuration parameter command is wirelessly transmitted to collecting unit：
Monitor Computer Control System is sent out the parameter informations such as seismic signal amplification factor, AD sample rates by LoRa wireless modules
It send to seismic data acquisition unit.
S202：System time service, parameter configuration：
Seismic data acquisition unit opens GPS module and reads UTC time and current latitude and longitude information, passes through UTC time
Parameter configuration instruction to calibrate RTC time, while be received according to LoRa wireless modules configures the parameter of collecting unit, wherein matching
The parameter set includes seismic signal amplification factor, AD sample rates.
S203：Geophone acquires seismic signal：
Ground is hammered with geologic hammer, simulates earthquake source, seismic signal is acquired using 3-component earthquake detector.
S204：Signal amplifies：
Seismic signal is amplified using programmable amplifier PGA281 and its peripheral circuit, amplification factor have 1 times, 2 times,
4 times, 8 times, 16 times, 32 times, PLC technology adjusts different amplification factors.
S205：Filtering, analog-to-digital conversion：
Seismic signal filtering processing is realized using sigma-delta type modulus conversion chip ADS1274 and its peripheral circuit, reduces ring
Border noise jamming, and realize conversion of the analog signal to digital signal.ADS1274 chips use sigma-delta modulation technique, have
Digital filtering function.Traditional analogue filter circuit is replaced using digital filter circuit, effectively prevents the temperature drift of analog device
And influence of noise, signal-to-noise ratio and Dynamic Range is greatly improved.
S206：SD card is locally stored：
AD conversion unit converts analog signal to digital signal, to prevent gathered data from losing, use SD card with
Certain text formatting stores gathered data.
S207：Gathered data transmits wirelessly：
The seismic data of acquisition is wirelessly transmitted to Monitor Computer Control System by LoRa wireless modules.
Referring to FIG. 3, Fig. 3 is that the wireless fraction 3-component earthquake cloth data based on LoRa technologies are adopted in the embodiment of the present invention
The working-flow figure of collecting system, includes the following steps：
S301：Monitor Computer Control System configuration parameter command is wirelessly transmitted to collecting unit：
Monitor Computer Control System sends out the seismic signal amplification factor of setting and sampling rate parameter by LoRa wireless modules
It send to seismic data acquisition unit.
S302：GPS time services, parameter configuration：
Seismic data acquisition unit reads UTC time and current latitude and longitude information by GPS module, passes through UTC time
Calibrate RTC time, while the ginseng of parameter configuration instruction configuration collecting unit that arm processor is received according to LoRa wireless modules
Number, wherein the parameter configured includes seismic signal amplification factor, AD sample rates.
S303：Seismic signal acquisition, processing：
Seismic data acquisition unit acquires seismic signal by 3-component earthquake detector, then puts seismic signal
Greatly, filtering and analog-to-digital conversion process.
S304：Gathered data is locally stored：
Gathered data that treated is stored with certain text formatting into SD card.
S305：Gathered data transmits wirelessly：
Gathered data that treated is sent to host computer by LoRa wireless modules and monitors system.
S306：Monitor Computer Control System wireless receiving gathered data is simultaneously handled, is stored：
Monitor Computer Control System receives gathered data using LoRa wireless modules, and is analyzed gathered data, is packaged
The processing such as storage.
S307：Real-time display gathered data and seismic waveform, adjusting parameter：
Monitor Computer Control System is in the current gathered data of human-computer interaction interface real-time display and seismic waveform, seismic waveform
Viewing can be played back.Meanwhile showing that situation can adjust seismic signal amplification in real time in human-computer interaction interface according to current seismic waveform
Multiple and sampling rate parameter information.
The beneficial effects of the invention are as follows：The technical solution provided through the invention, significantly reduces construction cost and section
About human resources etc. reduce the probability of happening of noise jamming and communication failure, improve portability and the adaptation of seismic instrument
Property, keep the acquisition of seismic data more convenient.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies, it is characterised in that：Including upper
Machine monitoring system and one or more seismic data acquisition unit, wherein：
The Monitor Computer Control System is the control platform of system for acquiring seismic data, using based on virtual instrument technique
LabVIEW is developed, and the Monitor Computer Control System includes LoRa wireless modules and PC machine main control platform；The PC machine master control
Platform provides human-computer interaction interface for a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies,
The human-computer interaction interface includes parameter setting module, data communication and preprocessing module and seismic waveform display module；It is described
Parameter setting module is for the configuration to earthquake signal amplification factor, sampling rate parameter；The data communication and preprocessing module
Reception, storage for wireless telecommunications and gathered data to the Monitor Computer Control System and the seismic data acquisition unit
And display；The seismic waveform display module is used for the display of seismic waveform；By the human-computer interaction interface, the master station
Control the parameter configuration, gathered data of the seismic data acquisition unit reception, storage and display and seismic waveform it is real-time
Display and playback；
The seismic data acquisition unit include geophone, signal processing circuit, analog to digital conversion circuit, arm processor,
GPS module, SD card, LoRa wireless modules, 12V lithium batteries, analog power and digital power；The seismic data acquisition unit is used
In to the acquisition of seismic signal, gathered data be locally stored and the wireless transmission of gathered data；The geophone inspection
Earthquake prediction signal, seismic signal are amplified by the signal processing circuit first, then pass through analog-digital conversion circuit as described
The conversion for carrying out digital filtering processing and analog signal and digital signal, is then stored in the SD card, is locally stored；
Gathered data is sent to the Monitor Computer Control System, while the wireless moulds of the LoRa finally by the LoRa wireless modules
Block receives the instruction of the seismic signal amplification factor that the Monitor Computer Control System is sent and sampling rate parameter configuration, the ARM
Processor handles the described instruction received, and the seismic data acquisition unit responds；The analog power and
The digital power is powered for the seismic data acquisition unit.
2. a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies as described in claim 1,
It is characterized in that：The Monitor Computer Control System is the application software built by portable computer and LabVIEW software platforms, is used for
To the design of interactive interface, the configuration of parameter, processing, storage and the display of gathered data and and seismic waveform display.
3. a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies as described in claim 1,
It is characterized in that：The LoRa wireless modules use LoRa communication protocols, realize reception and the parameter of seismic signal gathered data
The transmission of configuration-direct.
4. a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies as described in claim 1,
It is characterized in that：The geophone uses 3-component earthquake detector, completes the detection of seismic signal, and export three-pass DINSAR
Signal.
5. a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies as described in claim 1,
It is characterized in that：The signal processing circuit is formed using programmable amplifier PGA281 and its peripheral circuit, the signal processing electricity
The amplification factor on road has 1 times, 2 times, 4 times, 8 times, 16 times and 32 times, can be by program to the times magnification of the signal processing circuit
Number is adjusted, and the input and output of the signal processing circuit are differential signal.
6. a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies as described in claim 1,
It is characterized in that：Analog-digital conversion circuit as described realizes digital filtering and analog-to-digital conversion, the AD samplings in analog-digital conversion circuit as described
Rate includes 200Hz, 600Hz, 1000Hz and 2000Hz, and the AD sample rates can be adjusted according to program；In addition, the mould
Multichannel sigma-delta type ADC is used in number conversion circuit, the three-pass DINSAR signal of acquisition is handled simultaneously.
7. a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies as described in claim 1,
It is characterized in that：The GPS module provides latitude and longitude information and system time information for the system for acquiring seismic data；It adopts
With the SD card for seismic signal gathered data to be locally stored.
8. a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies as described in claim 1,
It is characterized in that：What the 12V lithium batteries were selected is non-magnetic ferric phosphate lithium cell；The analog power and the digital power
It is made of linear regulator chip, the break-make of the digital power is by button control, and the break-make of the analog power is by the ARM
The enable signal control that processor is sent out；The analog power and the digital power are respectively to the seismic data acquisition unit
Analog portion and numerical portion individually power, avoid digital signal and analog signal interfere with each other.
9. a kind of wireless distributed three-component seismic data acquisition system based on LoRa technologies as described in claim 1,
It is characterized in that：The LoRa wireless modules in the seismic data acquisition unit receive what the Monitor Computer Control System was sent
After seismic signal amplification factor, the AD sampling rate parameters configuration information, the arm processor response instruction configures parameter.
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