CN102809758B - Micro-vibration data acquisition device for ground surface - Google Patents
Micro-vibration data acquisition device for ground surface Download PDFInfo
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- CN102809758B CN102809758B CN201210237979.5A CN201210237979A CN102809758B CN 102809758 B CN102809758 B CN 102809758B CN 201210237979 A CN201210237979 A CN 201210237979A CN 102809758 B CN102809758 B CN 102809758B
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Abstract
The invention relates to a micro-vibration data acquisition device for a ground surface in the field of oil well fracturing technology monitoring in petroleum engineering. The micro-vibration data acquisition device for the ground surface is characterized by comprising a vibration sensor, a power supply circuit, a central processing controller, a signal acquisition circuit, a digital signal wireless transmission circuit and a clock synchronization circuit, wherein vibration signals received by the vibration sensor are transmitted to the signal acquisition circuit; the signal acquisition circuit transmits the signals to the central processing controller under the control of the clock synchronization circuit; and the central processing controller transmits the processed signals to the digital signal wireless transmission circuit synchronously under the control of the clock synchronization circuit. The micro-vibration data acquisition device for the ground surface has convenience in field test, high anti-interference performance, high performance, high signal-to-noise ratio and high flexibility.
Description
Technical field
The present invention relates to a kind of micro-vibration data acquisition device for ground surface in wellfracturing technical monitoring field in petroleum engineering.
Background technology
In petroleum engineering, wellfracturing technical monitoring is mainly used to determine pressure break source position, and determines the distribution situation of fracturing fracture further, comprises the distribution simulation situation of the orientation in crack, length, height and terrestrial stress.Wellfracturing technical monitoring to be divided in oil well monitoring and ground monitoring, monitors monitoring equipment requirement higher in oil well, and engineering construction technical requirement of getting up is high, and difficulty is large, is mainly used in external wellfracturing monitoring.The ground monitoring mainly ground microseismic activity monitoring of wellfracturing, it is a kind of new monitoring method of rising in the last few years, this method at present pure problem mainly Environmental Noise Influence is larger, microseismic activity signal synchronous collection is inconsistent, the decay of sensor long distance signal transmission is comparatively large, causes relevant monitoring point to lose the correlativity of Data Comparison.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art: provide a kind of micro-vibration data acquisition device for ground surface, reduce neighbourhood noise to the interference of useful signal, accurately synchronous acquisition signal is provided, reduce the decay of simulating signal Long line transmission, increase the effective, true, safe, reliable of test data.
For solving above technical matters, technical scheme of the present invention is: a kind of micro-vibration data acquisition device for ground surface, it comprises shock sensor, power circuit, central processing controller, signal acquisition circuit, radio transmission of digital signals circuit, clock synchronization circuit, the vibration signal that shock sensor receives transfers to signal acquisition circuit, described signal acquisition circuit sends signal to central processing controller under clock synchronization circuit controls, central processing controller clock synchronization circuit control under by process after signal synchronized transmission to radio transmission of digital signals circuit.
By above scheme, described signal acquisition circuit comprises signals collecting filtration module, FPG programming amplifying detection module, signals collecting filtration module delivers to FPG programming amplifying detection module after the vibration signal received from shock sensor being carried out collection filtering under clock synchronization circuit controls, then delivers to central processing controller by FPG programming amplifying detection module.
Contrast prior art, beneficial features of the present invention is: by the synchronous acquisition of signal, process, wireless transmission, increase test data effective, true, safe, reliable, on-the-spot test be convenient in the present invention, anti-interference, characteristic good, signal to noise ratio (S/N ratio) is high, highly sensitive.
Accompanying drawing explanation
Fig. 1 is the composition function block diagram of the embodiment of the present invention;
Fig. 2 is the vibration signal filtering gain section circuit diagram of the embodiment of the present invention;
Fig. 3 is the core devices extensive logical device EPM240T100C5 schematic diagram of the signal driving Acquisition Circuit module of the embodiment of the present invention;
Fig. 4 is the central processing controller of inventive embodiments--single-chip microcomputer internal program process flow diagram.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
A kind of micro-vibration data acquisition device for ground surface of the present invention, it comprises shock sensor, power circuit, central processing controller, signal acquisition circuit, radio transmission of digital signals circuit, clock synchronization circuit, the vibration signal that shock sensor receives transfers to signal acquisition circuit, described signal acquisition circuit clock synchronization circuit control under to central processing controller send signal, central processing controller clock synchronization circuit control under by process after signal synchronized transmission to radio transmission of digital signals circuit.
Concrete, signal acquisition circuit comprises signals collecting filtration module, FPG programming amplifying detection module, signals collecting filtration module delivers to FPG programming amplifying detection module after the vibration signal received from shock sensor being carried out collection filtering under clock synchronization circuit controls, then delivers to central processing controller by FPG programming amplifying detection module.
Concrete, this device belongs to the fore-end of ground microseismic activity data acquisition processing system, for collection and the data preparation transmission of field data.It includes a metal shell, a shock sensor core body, shock sensor core body is placed in the housing, circuit module is provided with in housing, described circuit module comprises power circuit, central processing controller, signal acquisition circuit, radio transmission of digital signals circuit, clock synchronization circuit, can according to the vibration signal size of reality, adjustment gain and filter factor, according to the background noise gathered in advance, collect microseismic activity signal effectively.
Concrete, signal acquisition circuit module, signal transacting display circuit module, radio transmission of digital signals circuit, clock synchronization circuit is connected with central processing controller control pin with the corresponding digital signal end of central processing controller.
Concrete, central processing controller can under host computer order, can the collection of control signal and transmission.
Preferably, central processing controller, adopts Intel8051.
Concrete, data are transferred to host computer by radio connection.
As shown in Figure 1, after the clock sync signal of central controller controls sends collection commencing signal, vibration signal first entering signal Acquisition Circuit carries out digitized processing (under synchronizing clock signals controls, the first collected filtering of vibration signal, then dynamic programme-controlled gain circuit amplification demodulator is passed through), be converted to digital signal, central processing controller reads and is transferred to wireless transmission circuit, and the vibration signal after digitizing is sent to host computer by wireless transmission circuit.
Figure 2 shows that the vibration signal filtering gain section circuit diagram of the embodiment of the present invention;
Figure 3 shows that signal drives the extensive logical device EPM240T100C5 of core devices of Acquisition Circuit module, this logical device can define different function control block (FCB)s after user program, come cost module allomeric function.
Figure 4 shows that the central processing controller of inventive embodiments--single-chip microcomputer internal program process flow diagram.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (2)
1. a micro-vibration data acquisition device for ground surface, it is characterized in that, it comprises shock sensor, power circuit, central processing controller, signal acquisition circuit, radio transmission of digital signals circuit, clock synchronization circuit, the vibration signal that shock sensor receives transfers to signal acquisition circuit, described signal acquisition circuit clock synchronization circuit control under to central processing controller send signal, central processing controller clock synchronization circuit control under by process after signal synchronized transmission to radio transmission of digital signals circuit; Described shock sensor core body is placed in metal shell housing, is provided with circuit module in housing, and described circuit module comprises power circuit, central processing controller, signal acquisition circuit, radio transmission of digital signals circuit, clock synchronization circuit.
2. micro-vibration data acquisition device for ground surface according to claim 1, it is characterized in that, described signal acquisition circuit comprises signals collecting filtration module, FPG programming amplifying detection module, signals collecting filtration module delivers to FPG programming amplifying detection module after the vibration signal received from shock sensor being carried out collection filtering under clock synchronization circuit controls, then delivers to central processing controller by FPG programming amplifying detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210237979.5A CN102809758B (en) | 2012-07-11 | 2012-07-11 | Micro-vibration data acquisition device for ground surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210237979.5A CN102809758B (en) | 2012-07-11 | 2012-07-11 | Micro-vibration data acquisition device for ground surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102809758A CN102809758A (en) | 2012-12-05 |
| CN102809758B true CN102809758B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210237979.5A Expired - Fee Related CN102809758B (en) | 2012-07-11 | 2012-07-11 | Micro-vibration data acquisition device for ground surface |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616719B (en) * | 2013-12-05 | 2017-02-08 | 中国矿业大学(北京) | Microseism acquisition device and method with noise identification and self-adaptive amplification functions |
| CN104266682A (en) * | 2014-10-17 | 2015-01-07 | 成都市宏山科技有限公司 | Speed and displacement monitoring device |
| CN104457973A (en) * | 2014-12-29 | 2015-03-25 | 中铁隧道集团有限公司 | Vibration signal detection and fault diagnosis system in shield tunneling process |
| CN105628181A (en) * | 2015-12-28 | 2016-06-01 | 太原理工大学 | Micro-seismic earthquake sound monitoring instrument |
| CN107894609B (en) * | 2017-12-15 | 2024-04-09 | 合肥国为电子有限公司 | Low-power-consumption portable vibration trigger switch integrated with wireless transmitting function |
| CN109752754A (en) * | 2018-12-19 | 2019-05-14 | 中国电子科技集团公司电子科学研究院 | For detecting the apparatus and system of earth shock signal |
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| WO2003009001A2 (en) * | 2001-07-16 | 2003-01-30 | Input/Output, Inc. | Apparatus and method for seismic data acquisition |
| CN201730613U (en) * | 2010-05-18 | 2011-02-02 | 西部矿业股份有限公司 | Microearthquake monitoring system of non-coal mine |
| CN202033476U (en) * | 2011-04-20 | 2011-11-09 | 徐州福安科技有限公司 | Mine mining crack evolution and distribution monitoring device |
| CN202693124U (en) * | 2012-07-11 | 2013-01-23 | 武汉大地中科科技有限公司 | Ground micro-vibration data acquisition device |
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2012
- 2012-07-11 CN CN201210237979.5A patent/CN102809758B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003009001A2 (en) * | 2001-07-16 | 2003-01-30 | Input/Output, Inc. | Apparatus and method for seismic data acquisition |
| CN201730613U (en) * | 2010-05-18 | 2011-02-02 | 西部矿业股份有限公司 | Microearthquake monitoring system of non-coal mine |
| CN202033476U (en) * | 2011-04-20 | 2011-11-09 | 徐州福安科技有限公司 | Mine mining crack evolution and distribution monitoring device |
| CN202693124U (en) * | 2012-07-11 | 2013-01-23 | 武汉大地中科科技有限公司 | Ground micro-vibration data acquisition device |
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Effective date of registration: 20180413 Address after: 430074 No. 4, 5 Story 3, phase 1 of silver long science and Technology Industrial Park, No. 35 Optics Valley Road, East Lake Development Zone, Wuhan, Hubei. Patentee after: Wuhan Construction Technology Co.,Ltd. Address before: 430074 room 1405, East Valley Ginza, 727 Luo Yu Road, Hongshan District, Wuhan, Hubei. Patentee before: WUHAN DADI ZHONGKE SCIENCE & TECHNOLOGY Co.,Ltd. |
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