CN104536331A - DSP and FPGA based general logging signal acquisition control system - Google Patents
DSP and FPGA based general logging signal acquisition control system Download PDFInfo
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- CN104536331A CN104536331A CN201410664405.5A CN201410664405A CN104536331A CN 104536331 A CN104536331 A CN 104536331A CN 201410664405 A CN201410664405 A CN 201410664405A CN 104536331 A CN104536331 A CN 104536331A
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- 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
Abstract
The invention provides a DSP and FPGA based general logging signal acquisition control system which comprises a DSP module, an FPGA module, a high-speed A/D converter, a D/A output module, a first generation input and output interface, a second generation input and output interface, an analog input interface, a high-speed analog/digital channel interface, a master wiring port and a D/A output port. The system is highly general, it is only required to download corresponding signal acquisition control software in the DSP module and the FPGA module instead of modifying hardware circuits when the system is applied to different logging instruments, the development cost of the logging instruments is greatly reduced, and the working efficiency is improved. The system is also high in circuit integrated level, stable in work, good in performance, low in failure rate, and adaptive to high temperature and pressure underground environments.
Description
Technical field
The present invention relates to downhole detection field, be specifically related to a kind of general logging signal acquisition control system based on DSP and FPGA.
Background technology
Logging instrumentation signal collecting and controlling module is the core of logging instrumentation.Signals collecting is the key component of logging system obtaining information, and its function is simulating signal or the pulse signal of sampling sensor output, and sampled signal is converted exactly to the digital signal of processor energy analyzing and processing.Totally there is following deficiency in the signals collecting control module of existing logging instrumentation: 1. poor universality, even the logging instrumentation of same company, signals collecting control module also can be different along with the difference of subsurface equipment; 2. circuit is complicated, and integrated level is low, poor expandability; 3. poor stability, cannot adapt to the rugged surroundings of down-hole high temperature, high pressure well.In order to improve field logging work efficiency and survey the accuracy of well-log information, develop a kind of intelligent multifunctional, strong adaptability, integration degree is high, stability is strong logging instrumentation signal collecting and controlling module be significant.
Summary of the invention
An object of the present invention is to provide a kind of general logging signal acquisition control system based on DSP and FPGA.Native system highly versatile, integrated level is high, working stability, functional, failure rate is low, can adapt to the rugged surroundings of down-hole high temperature, high pressure.
For solving the problem, a kind of general logging signal acquisition control system based on DSP and FPGA provided by the invention comprises DSP module, FPGA module, high-speed a/d converter, D/A output module, the first universal input/output interface, the second universal input/output interface, analog input interface, high speed analog-digital conversion channel interface, total connection jaws and D/A output port.
High-speed a/d converter connects DSP module, DSP module connects FPGA module, D/A output module connects DSP module, FPGA module connects total connection jaws and the first universal input/output interface, DSP module connects the second universal input/output interface and analog input interface, high-speed a/d converter connects high speed analog-digital conversion channel interface, and D/A output module connects D/A output port.
Further, the signal based on the sensor collection in the general logging signal acquisition control system of DSP and FPGA enters described DSP module by amplifying circuit and filtering circuit.
The sensor signal of logging instrumentation collection is divided into simulating signal, pulse signal and waveform signal.
Simulating signal first will amplify process through amplifying circuit, and 12 A/D converters that the signal amplifying process enters DSP module built-in after circuit after filtering carry out analog to digital conversion, and simulating signal is converted to digital signal.
Pulse signal or waveform signal amplify process through amplifying circuit, and the signal amplifying process enters high-speed a/d converter after circuit after filtering and carries out analog to digital conversion, pulse signal or waveform signal is converted to digital signal, enters DSP module.
Further, comprise signals collecting control module based in the DSP module in the general logging signal acquisition control system of DSP and FPGA, for dissimilar logging instrumentation, corresponding signals collecting control software design can be downloaded and installed.
Beneficial effect of the present invention is, the present invention has stronger versatility, when being applied to different logging instrumentation, hardware circuit is without the need to amendment, only need download corresponding signals collecting control software design to DSP module and FPGA module, greatly save logging instrumentation development cost, improve work efficiency.This circuit system integrated level is high, and working stability is functional, failure rate is low, can adapt to the rugged surroundings of down-hole high temperature, high pressure.
Accompanying drawing explanation
Figure 1 shows that embodiment of the present invention system composition structural drawing.
Figure 2 shows that embodiment of the present invention analog signal processing schematic diagram.
Figure 3 shows that embodiment of the present invention pulse signal or waveform signal process schematic diagram.
Concrete embodiment
Hereafter will describe embodiments of the invention in detail by reference to the accompanying drawings.It should be noted that the combination of technical characteristic or the technical characteristic described in following embodiment should not be considered to isolated, they can mutually be combined thus be reached better technique effect.In the accompanying drawing of following embodiment, the identical label that each accompanying drawing occurs represents identical feature or parts, can be applicable in different embodiment.
As shown in Figure 1, a kind of general logging signal acquisition control system based on DSP and FPGA provided by the invention comprises DSP module 1, FPGA module 2, D/A output module 3, high-speed a/d converter 4, analog input interface 5, first universal input/output interface 6, D/A output port 7, second universal input/output interface 8, total connection jaws 9 and high speed analog-digital conversion channel interface 10.
High-speed a/d converter 4 connects DSP module 1, DSP module 1 connects FPGA module 2, D/A output module 3 connects DSP module 1, FPGA module 2 connects total connection jaws 9 and the second universal input/output interface 8, DSP module 1 connects the first universal input/output interface and analog input interface 5, high-speed a/d converter 4 connects high speed analog-digital conversion channel interface 10, D/A output module 3 and connects D/A output port 7.
The signal of sensor collection enters DSP module 1 by amplifying circuit and filtering circuit.
DSP module 1 is connected with FPGA module 2.The process of digital signal is completed by DSP module 1, and data are in processing procedure, and FPGA module 2 mainly realizes the buffer memory to data.FPGA module 2 is connected with Datrex system by bus interface 9, can realize the flexible configuration of various communication interfaces.
Status monitoring signal is inputted by the first universal input/output interface 6, and relay and analog switch control signal are exported by the second universal input/output interface 8.The signal that sensor collects is inputted by analog input interface 5.
The sensor signal of logging instrumentation collection is divided into simulating signal, pulse signal and waveform signal.
For simulating signal, the signal detected from sensor is generally very faint signal and is mingled with very strong electromagnetic interference (EMI), so must carry out amplification, the filtering process of signal before entering acquisition system.The analog signal voltage of input DSP in the scope of 0 ~ 3V, otherwise easily will burn out A/D converter.As shown in Figure 2, simulating signal first carries out amplification process through amplifying circuit, and signal 12 A/D converters that circuit enters DSP module 1 built-in after filtering amplifying process reason carry out analog to digital conversion, and simulating signal is converted to digital signal.Different according to logging instrumentation sensor, DSP module 1 pair of digital signal does corresponding calculating and process.DSP module 1 is connected with FPGA module 2, realizes the buffer memory to data in processing procedure.FPGA module 2 is connected with Datrex system by bus interface 9.DSP module 1 connects D/A output module 3, D/A output module 3 can provide analog voltage control signal for surveying instrument, as the high voltage control signal of the instrument such as gamma spectra, lithology and density logging.
Pulse signal and waveform signal all require high-speed sampling, and 16 analog sampling roads that DSP module 1 carries can not meet the demands, so these two kinds of signals will be gathered it by high-speed a/d converter 4 through high speed analog-digital conversion passage.
Pulse signal or waveform signal amplify through amplifying circuit as shown in Figure 3, then after filtering circuit, enter high-speed a/d converter 4 carry out analog to digital conversion, pulse signal is converted to digital signal, enters DSP module 1, complete step-by-step counting and energy spectrometer.
Comprise signals collecting control module in DSP module 1 and FPGA module 2, for dissimilar logging instrumentation, corresponding signals collecting control software design can be downloaded and installed and support this logging instrumentation.
This logging instrumentation signal collecting and controlling system makes the collection control section of logging instrumentation achieve consistance on hardware circuit.Only need download corresponding signals collecting control software design when being applied in different logging instrumentation, hardware circuit does not need to change, and has greatly saved logging instrumentation development cost, has improve work efficiency.After adopting design proposal herein, also greatly alleviate the burden of apparatus guarantee personnel, there are the personnel of basic electronic technology knowledge, just can complete the maintenance job of instrument through simple training.
Although give some embodiments of the present invention, it will be understood by those of skill in the art that without departing from the spirit of the invention herein, can change embodiment herein.Above-described embodiment is exemplary, should using embodiment herein as the restriction of interest field of the present invention.
Claims (3)
1. the general logging signal acquisition control system based on DSP and FPGA, it is characterized in that, comprise DSP module, FPGA module, high-speed a/d converter, D/A output module, the first universal input/output interface, the second universal input/output interface, analog input interface, high speed analog-digital conversion channel interface, total connection jaws and D/A output port;
Described high-speed a/d converter connects described DSP module, described DSP module connects described FPGA module, described D/A output module connects described DSP module, described FPGA module connects total connection jaws and described first universal input/output interface, described DSP module connects described second universal input/output interface and described analog input interface, described high-speed a/d converter connects described high speed analog-digital conversion channel interface, and described D/A output module connects described D/A output port.
2. a kind of general logging signal acquisition control system based on DSP and FPGA as claimed in claim 1, it is characterized in that, the signal of sensor collection enters described DSP module by amplifying circuit and filtering circuit.
3. a kind of general logging signal acquisition control system based on DSP and FPGA as claimed in claim 1, is characterized in that, comprise signals collecting control module in described DSP module.
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| CN201410664405.5A CN104536331A (en) | 2014-11-19 | 2014-11-19 | DSP and FPGA based general logging signal acquisition control system |
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| CN201410664405.5A CN104536331A (en) | 2014-11-19 | 2014-11-19 | DSP and FPGA based general logging signal acquisition control system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387196A (en) * | 2007-09-10 | 2009-03-18 | 中国石油天然气集团公司 | Coded signal emulation inspection method |
| CN101586930A (en) * | 2009-06-20 | 2009-11-25 | 中北大学 | High-speed data acquisition processing real-time retransmission device |
| CN201397459Y (en) * | 2009-03-25 | 2010-02-03 | 南京工业大学 | Special equipment data collecting device based on DSP and FPGA |
| CN102508467A (en) * | 2011-10-18 | 2012-06-20 | 中国西电电气股份有限公司 | Online monitoring system of switch equipment based on DSP (Digital Signal Processor) and FPGA (Field Programmable Gate Array) |
| CN202563080U (en) * | 2012-05-07 | 2012-11-28 | 中国人民解放军海军702厂 | High-speed data acquisition device based on FPGA and DSP |
-
2014
- 2014-11-19 CN CN201410664405.5A patent/CN104536331A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387196A (en) * | 2007-09-10 | 2009-03-18 | 中国石油天然气集团公司 | Coded signal emulation inspection method |
| CN201397459Y (en) * | 2009-03-25 | 2010-02-03 | 南京工业大学 | Special equipment data collecting device based on DSP and FPGA |
| CN101586930A (en) * | 2009-06-20 | 2009-11-25 | 中北大学 | High-speed data acquisition processing real-time retransmission device |
| CN102508467A (en) * | 2011-10-18 | 2012-06-20 | 中国西电电气股份有限公司 | Online monitoring system of switch equipment based on DSP (Digital Signal Processor) and FPGA (Field Programmable Gate Array) |
| CN202563080U (en) * | 2012-05-07 | 2012-11-28 | 中国人民解放军海军702厂 | High-speed data acquisition device based on FPGA and DSP |
Non-Patent Citations (1)
| Title |
|---|
| 鲁放等: "井下仪器通用数据采集传输模块设计", 《石油仪器》 * |
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Application publication date: 20150422 |