CN201819992U

CN201819992U - Microseismic data collector

Info

Publication number: CN201819992U
Application number: CN2010202866307U
Authority: CN
Inventors: 周瑶琪; 王维波
Original assignee: Dongying Microsensor Science & Technology Development Co Ltd
Current assignee: Dongying Microsensor Science & Technology Development Co Ltd
Priority date: 2010-08-05
Filing date: 2010-08-05
Publication date: 2011-05-04
Anticipated expiration: 2020-08-05

Abstract

A microseismic data collector comprises a signal sensor, a main board, a GPS (global positioning system) antenna, an LED (light-emitting diode) display and keypad panel and a U disk, wherein the main board 1 is respectively in parallel connection with the signal sensor, the GPS antenna, the LED display and keypad panel and the U disk so as to form a whole. The microseismic data collector has the functions of gain-programmed amplifier, website number arrangement, hardware digital filter, and GPS time service and positioning, is capable of selecting linear phase filtering or minimum phase filtering, selecting a data sampling rate ranging between 250-4000SPS (sampling point/second), creating a new file automatically, and collecting continuously, is high in analog-to-digital conversion precision, low in noise, low in power consumption, light in weight, low in cost and convenient for on-site installation and connection, and can be widely applied in the large-scale monitoring and construction of numerous field stations, and is particularly suitable for the microseismic monitoring in the hydraulic fracturing process of oil-gas wells.

Description

The microearthquake data acquisition unit

One, technical field

The utility model relates to needs multi-site independently to gather, after finishing, collection carries out the synchronous application of multi-site data time, defeat the microearthquake of the process of splitting as oil and gas well and monitor microearthquake signal real-time data acquisition and the register system of using, particularly a kind of microearthquake data acquisition unit.

Two, background technology

The microearthquake monitoring that oil and gas well is defeated the process of splitting needs a large amount of monitoring stations, for ease of site operation, needs microearthquake data acquisition unit precision height, noise is low, low in energy consumption, in light weight, cost is low, has GPS time service and data storage function.Existing microearthquake data acquisition unit mainly is divided into two classes, one class is the three-component seismic data collector that earthquake is used, mainly form by 3-component earthquake sensor and 3/6 passage collector, purpose is to utilize existing equipment to monitor, but this type of collector exists following shortcoming or deficiency: 1. cost height; 2. power consumption height; 3. can't adopt a large amount of websites to monitor construction.Another kind of is multichannel seismic data collector, mainly constitute by sensor and hyperchannel (nearly tens) collector, purpose is to connect a lot of sensors with a collector, its shortcoming or deficiency are: need wired connection between each sensor and the collector, be not suitable for the construction in the open-air large tracts of land scope.

Three, summary of the invention

The purpose of this utility model provides a kind of microearthquake data acquisition unit, adopt 32 analog/digital converters (ADC) carry out Analog signals'digitalization, adopt single-chip microcomputer to control, obtain coordinate and time with the GPS module, with the structure that flash disk carries out the data file storage, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.

Microearthquake data acquisition unit described in the utility model comprises signal transducer, mainboard, gps antenna, LED demonstration and key panel, USB flash disk.Described mainboard walks abreast and connects as one with signal transducer, gps antenna, LED demonstration and key panel, USB flash disk respectively.

Wherein, described mainboard comprises processor 14 and is connected with its toggle switch of being connected of walking abreast, GPS module, 32 ADC, USB flash disk module for reading and writing and controls that power circuit is connected with each unit of mainboard.The GPS module of described mainboard is connected with gps antenna, and the processor of mainboard shows with LED and be connected with key panel that the USB flash disk module for reading and writing of mainboard is connected with USB flash disk.Described signal transducer is vibration transducer or any sensor with the output of one tunnel simulating signal.As common moving-coil geophone.Described 32 ADC are for adopting the converter of ADS1282 chip.Described processor is the C8051F005 single-chip microcomputer, and system's each several part is controlled.Described GPS module is to obtain the RCB-4H module of the uBlox company of GPS information.Described USB flash disk read module is the CH735 module.

The utility model has following advantage compared with prior art:

1, has a differential analog signal input channel, can connect any vibration transducer, as common moving-coil geophone with the output of one tunnel differential analog signal;

2, have the gain-programmed amplifier function, can select 1,2,4,8,16,32,64 times of signal to amplify by three dial-ups on the circuit board;

3, have site number function is set, adopt 5 toggle switchs site number to be set, Serial Number Range 0～31;

4, have 32 ADC, 1 is-symbol position wherein, 31 is data, data converted is 32 bit complement forms;

5, have the hardware digital filter, can select linear-phase filtering or minimum phase filters used for use, data sampling rate can be selected between 250～4000SPS (sampling number/second);

6, have GPS time service and positioning function, data zero-time and website gps coordinate write file;

7, the data of Cai Jiing store in the flash disk with document form, and per 25 minutes data save as a file, create new file then automatically, to realize continuous acquisition;

8, A/D conversion accuracy height, noise are low, and Overall Power Consumption is low, in light weight, cost is low;

9, in the file of each collector record gps time and coordinate information are arranged, single website works alone, and is convenient to open-air a large amount of website and monitors the microearthquake monitoring that the process of splitting is defeated in construction, particularly oil and gas well on a large scale;

10, easy for site installation and connection.

Four, description of drawings

Fig. 1 is a kind of example structure synoptic diagram of the present utility model

Fig. 2 is the power unit structural representation shown in the Antu 1

Fig. 3 is button shown in the Antu 1 and display panel circuit principle structure synoptic diagram.

Five, embodiment

Consult Fig. 1-Fig. 3, a kind of microearthquake data acquisition unit comprises signal transducer 5, mainboard 1, gps antenna 2, LED demonstration and key panel 3, USB flash disk 4.Mainboard 1 walks abreast and connects as one with signal transducer 5, gps antenna 2, LED demonstration and key panel 3, USB flash disk 4 respectively.

Mainboard 1 comprises processor 14 and is connected with its walk abreast toggle switch 11, GPS module 12,32 ADC13, USB flash disk module for reading and writing 16 of being connected and controls that power circuit 15 is connected with each unit of mainboard 1.The GPS module 12 of mainboard 1 is connected with gps antenna 2, and the processor 14 of mainboard 1 shows with LED and be connected with key panel 3 that the USB flash disk module for reading and writing 16 of mainboard 1 is connected with USB flash disk 4.Signal transducer 5 is for vibration transducer or any sensor with the output of one tunnel simulating signal, as common moving-coil geophone.32 ADC13 are for adopting the converter of ADS1282 chip.Processor 14 is the C8051F005 single-chip microcomputer, and system's each several part is controlled.GPS module 12 is a RCB-4H module of obtaining the uBlox company of GPS information.USB flash disk read module 16 is the CH735 module.

During operation, 32 ADC13 are digital signal with the analog signal conversion of signal transducer 5, and by processor 14 control, data read and storage.Processor 14 is also controlled a GPS module 12 and is used to read GPS information.Processor 14 reads 6PS time and coordinate data by GPS module 12, stores the transformation result of 32 ADC13 into USB flash disk 4 li.System can be provided with site number and PGA multiple by 8 toggle switchs 11 on the circuit, and 3 are used to be provided with the PGA multiple, and scope is 1～64 times, and 5 are used to be provided with site number, and scope is 0～31.

Power circuit 15 is by the battery case power supply, and cell voltage 6～9V has power switch on the battery case.Fuse provides the power supply reverse connecting protection, burns entire circuit when avoiding the power supply reversal connection.LT1763 (1) with+6～9V voltage transformation is+the 2.5V voltage stabilizing, LT1763 (2) with+6～9V voltage transformation is+the 3.3V voltage stabilizing, LT1763 (3) with+6～9V voltage transformation is+the 5V voltage stabilizing, LT1019 general+5V voltage stabilizing is transformed to+the 2.5V reference voltage, MAX889T general+5V voltage transformation is-5V voltage that LT1964 general-5V voltage transformation is-the 2.5V voltage stabilizing.

In LED demonstration and key panel 3 circuit diagrams, LED shows and is connected with mainboard by one 10 faller gill line with key panel that its circuit board is installed on the instrument panel, is used for system is controlled and show state." beginning " and " stopping " two buttons are arranged on the panel, be used for the control beginning and stop collection.There are 5 LED to be used for the display system state, promptly " USB flash disk indication " LED is used to show the USB flash disk state, " GPS indication " LED is used to show the gps signal state, and " gathering indication " LED is used for showing whether be in acquisition state, and " wave detector LED " shows whether wave detector connects.

The function of each unit is as follows: power circuit 15: with 6～9V voltage transitions of battery is that each device uses on the plate of various stable level power voltage supplies road.32 ADC13: chip adopts ADS1282, this chip to have 1～64 times gain-programmed amplifier (PGA), 32 analog/digital converters and hardware Sinc+FIR+IIR multirate digital filter.Processor 14 also is a single-chip microcomputer: single-chip microcomputer adopts C8051F005 chip, charge control circuit various piece.8 toggle switchs 11: be connected with the ordinary numbers IO mouth of single-chip microcomputer, wherein 3 are used to be provided with the PGA multiple, and 5 are used to be provided with site number.GPS module 12: adopt the RCB4H module of uBlox, be connected with single-chip microcomputer, gps time and coordinate information are provided by the UART interface.Gps antenna 2: be connected with GPS module 12, be used to obtain gps signal.USB flash disk module for reading and writing 16: adopt the CH735 module, be connected with single-chip microcomputer, be used to read and write USB flash disk 4 by the SPI interface.USB flash disk 4: be connected with the USB interface of USB flash disk module 16, be used for data storage.LED shows and key panel 3: this panel is connected with mainboard 1 by one 10 faller gill line, the beginning of " beginning " and " stopping " button control data collection is arranged and stops, and several LED display system states are arranged.

Claims

1. microearthquake data acquisition unit, comprise signal transducer, mainboard, gps antenna, LED demonstration and key panel, USB flash disk, it is characterized in that described mainboard walks abreast and connects as one with signal transducer, gps antenna, LED demonstration and key panel, USB flash disk respectively.

2. microearthquake data acquisition unit according to claim 1, it is characterized in that described mainboard comprises processor and be connected with its toggle switch be connected of walking abreast, GPS module, 32 ADC, USB flash disk module for reading and writing and control that power circuit is connected with above-mentioned each unit.

3. microearthquake data acquisition unit according to claim 1 is characterized in that the GPS module of described mainboard is connected with gps antenna, and the processor of mainboard shows with LED and be connected with key panel that the USB flash disk module for reading and writing of mainboard is connected with USB flash disk.

4. microearthquake data acquisition unit according to claim 1 is characterized in that described signal transducer is vibration transducer or any sensor with the output of one tunnel simulating signal.

5. microearthquake data acquisition unit according to claim 1 and 2 is characterized in that described 32 ADC13 are the ADS1282 chip.