CN102809760A - Self-adaptive low-power consumption method suitable for overland geophysical exploration data acquisition station - Google Patents
Self-adaptive low-power consumption method suitable for overland geophysical exploration data acquisition station Download PDFInfo
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- CN102809760A CN102809760A CN2012102573757A CN201210257375A CN102809760A CN 102809760 A CN102809760 A CN 102809760A CN 2012102573757 A CN2012102573757 A CN 2012102573757A CN 201210257375 A CN201210257375 A CN 201210257375A CN 102809760 A CN102809760 A CN 102809760A
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Abstract
The invention discloses a self-adaptive low-power consumption method suitable for an overland geophysical exploration data acquisition station. When the acquisition station is in an idle mode, an analog power supply is controlled to stop supplying power to an analog circuit, and the analog circuit stops working, so that the acquisition station enters a low-energy consumption working mode to reduce the power consumption of the acquisition station; and therefore, the power consumption of an overall seismic prospecting instrument is reduced, the service life of a system power supply and the system standby time are prolonged, batteries are prevented from being replaced frequently, and the efficiency of field construction is improved.
Description
Technical field
The present invention relates to earthquake data acquisition and transmission system, specifically is a kind of adaptivity low-power consumption method that is applicable to land geophysical survey data acquisition station.
Background technology
For large-scale land seismic prospecting system, power consumption is a major issue, has both directly determined the continuous type time of system, and also part has determined the power supply mode that system need adopt.As the maximum acquisition station of quantity in the land seismic prospecting system, its power consumption levels has determined the power consumption levels of whole exploration system.Data acquisition system (DAS) in the at present both at home and abroad advanced land seismic prospecting instrument is 428 serial land system for acquiring seismic data of French Sercel company, the land seismic detector system in the ES109 of PetroChina Company Limited. ten thousand roads etc.
France Sercel company has accumulated many years of experience in seismic instrument development aspect by land, 428 series of its up-to-date release, and it is more powerful on its basis of 408, to improve the back function, and the collection plate power consumption is also lower.With its LAUX-428 ground system is example, and acquisition station adopts the 15VDC powered battery, and rated disspation is 6.7W, owing to there are not to disclose the ins and outs of its power work mode, whether adopted certain low-power consumption mode and how to realize so be unable to find out it.
The land seismic acquisition configuration in the ES109 of PetroChina Company Limited. ten thousand roads adopts half concentration supply power mode, and several acquisition stations are shared a power supply station.The acquisition station far away apart from the power supply station transmits through power lead.Similarly, because the loss of power lead, the power supply station also is to produce high pressure to supply power to acquisition station.Owing to do not disclose its power work mode, whether adopted certain low-power consumption mode so can't know it.
Summary of the invention
The technical matters that the present invention will solve provides a kind of adaptivity low-power consumption method that is applicable to land geophysical survey data acquisition station; When acquisition station is not gathered (being in idle condition); Mimic channel to collecting unit is stopped power supply, and reduces the power consumption of acquisition station greatly, and then reduces the power consumption of seismic exploration system entirely; To increasing system power supply life-span and system standby time, improve field construction efficient and have crucial practical value.
Technical scheme of the present invention is:
Be applicable to the adaptivity low-power consumption method of land geophysical survey data acquisition station; Described geophysical survey data acquisition station includes interconnective field programmable gate array and analog circuit unit; Be connected in the interface unit on the field programmable gate array; The analog power that is connected with analog circuit unit, and the digital power module that is connected with interface unit with field programmable gate array respectively; Interface unit comprises command channel interface unit and data channel interface unit; Described analog power is connected with field programmable gate array; Described adaptivity low-power consumption method specifically may further comprise the steps:
(1), after acquisition station powers on, at first field programmable gate array carries out the operation of initialization and self-checking successively, field programmable gate array is waited for user command then, and fill order;
(2), field programmable gate array detects acquisition station work at present pattern; When detecting acquisition station, field programmable gate array is in idle pulley; Then start the low-power consumption counting module of field programmable gate array, get into the timing of low power mode of operation, after the low-power consumption counting module reaches count threshold; Field programmable gate array control analog power is closed; Analog power stops the analog circuit unit power supply, and analog circuit unit promptly stops collecting work, and whole acquisition station enters into low power mode of operation.
The low-power consumption counting module of described field programmable gate array is in counting process; Field programmable gate array receives new user command: acquisition station is set breaks away from idle pulley; The low-power consumption counting module of field programmable gate array promptly stops to count the horizontal reset of going forward side by side, and field programmable gate array gets into normal mode of operation again simultaneously.
After described whole acquisition station enters into low power mode of operation; Field programmable gate array detects new user command: acquisition station is set breaks away from idle pulley; Field programmable gate array control analog power is opened then; Analog circuit unit restores electricity, and whole collector enters into normal mode of operation.
After the low-power consumption counting module reached count threshold, the low-power consumption counting module stopped counting work in the described step 2.
Work as whole acquisition station in the described step 2 and enter into low power mode of operation, wherein the data channel interface unit is a low power consumpting state, and field programmable gate array and command channel interface unit are kept normal operating conditions.
Described analog circuit unit comprises the wave detector input block, front end band RC wave filter, variable gain amplifier, A-D converter (ADC).
Beneficial effect of the present invention:
Have a very wide distribution based on land seismic prospecting system, owing to need the rolling operation, so the characteristics that acquisition time is grown at interval; Designed the adaptivity low-power consumption method at a kind of land seismic prospecting data collecting station; When acquisition station is in idle pulley, make it can get into low power mode of operation automatically, reduce the acquisition station power consumption; And then reduced the power consumption of whole seismic prospecting instrument; Increase system power supply serviceable life and system standby time, avoided battery altering frequent, improved the efficient of field construction; This no matter to land based on the small-sized seismic prospecting instrument under the small electrical source station distributed power supply mode, still to all significant based on the large-scale seismic prospecting instrument under the concentration supply power mode at large-scale power supply station.Working 8 hours every day with single acquisition station is example, and wherein the acquisition station rated disspation is 5W as being estimated as 3 hours free time; Wherein artificial circuit part comprises 8 passages, and each passage is by analog switch, the variable gain prime amplifier; Single-ended transfer difference is used amplifier, and ADC forms.Variable gain prime amplifier power consumption is about 50mW, and single-ended transfer difference uses the amplifier power consumption to be 25mW, and the ADC power consumption is 40mW, so single channel mimic channel key chip total power consumption is 115mW, 8 passage total power consumptions are 920mW; The analog part self-checking circuit is made up of with DAC and test waveform generator test, and power consumption is respectively 50mW and 100mW, is 1.07W so the mimic channel Primary Component consumes total power consumption.Numerical portion is by FPGA and high-speed data, and command interface is formed, and under the low-power consumption situation, data-interface is closed, and saves power consumption and is about 1.27W; Other consider analog power conversion chip, power consumed of resistance own and FPGA part of module (like the analog chip driver module) power consumption of saving etc. that quits work in the mimic channel, and the acquisition station power consumption is about 2W under the low-power consumption.If do not adopt adaptivity low-power consumption method of work; Then the energy of single acquisition station consumption in one day is 40WH; Adopt adaptivity low-power consumption method of work, the energy that then consumes is 31WH, and promptly every day, single acquisition station can be saved the energy of 9WH; Electric energy reaches 23% approximately, and electric energy is along with the elongated of acquisition station free time and increase.Even acquisition station free time weak point, under the situation that does not influence operate as normal, acquisition station also can be saved the part power consumption.
Description of drawings
Fig. 1 is the structural representation of acquisition station of the present invention.
Fig. 2 is a process flow diagram of the present invention.
Fig. 3 is a mimic channel low power consumption control synoptic diagram of the present invention.
Embodiment
See Fig. 1; Land geophysical survey data acquisition station; Include interconnective field programmable gate array 1 and analog circuit unit 2; The analog power 3 that is connected with analog circuit unit 2 is connected in the interface unit on the field programmable gate array 1, and the digital power module 6 that is connected with field programmable gate array 1, interface unit respectively; Wherein, interface unit comprises command channel interface unit 4 and data channel interface unit 5, and analog power 3 is connected with field programmable gate array 1.
See Fig. 2, be applicable to the adaptivity low-power consumption method of land geophysical survey data acquisition station, specifically may further comprise the steps:
(1), after acquisition station powers on, carry out initialization, each acquisition station numbering is mainly accomplished in initialization, uploads readyly for ensuing framing, avoids software chaotic when carrying out data recombination (sequential make a detour preface); After accomplishing initialization, wait for the self-checking order, self-checking is promptly before carrying out the real data collection; By the inner test waveform that produces of acquisition station Acquisition Circuit is tested, check quality and each item index situation of passage, this test is by manual control; Do not carry out automatically, only need usually when beginning most, to test, in working afterwards; As long as topological structure does not change, all can skip; After initialization and self-checking operation were accomplished, field programmable gate array 1 was waited for user command, and fill order;
(2), field programmable gate array detects acquisition station work at present pattern; Be in idle pulley when field programmable gate array detects acquisition station, then start the low-power consumption counting module of field programmable gate array, get into the timing of low power mode of operation; After the low-power consumption counting module reaches count threshold; The low-power consumption counting module stops counting work, and the analog power of field programmable gate array control is simultaneously closed, and analog power stops analog circuit unit being supplied power; Analog circuit unit promptly stops collecting work; Whole acquisition station enters into low power mode of operation, and promptly field programmable gate array and interface unit are with enjoying the digital power module, and the data channel interface unit will be set to low-power consumption mode under the low power mode of operation.In the realization, order and data channel interface unit have all adopted identical chips, are serializer SN65LV1023A and the deserializer SN65LV1224A of TI.This two chip all provides " low-power consumption " that pin is set, and it is low power consumpting state that chip is set, and is that 66MHz is an example with the work clock, and under the low-power consumption mode, the chip current sinking drops to 0.2mA from 55mA.Owing to need the detection system order, come back to normal mode of operation, so field programmable gate array and command channel interface module are in normal operating conditions always.
(3), the low-power consumption counting module of field programmable gate array is in counting process; Field programmable gate array receives new user command: acquisition station is set breaks away from idle pulley; The low-power consumption counting module of field programmable gate array promptly stops to count the horizontal reset of going forward side by side, and field programmable gate array gets into normal mode of operation again simultaneously.
(4), after whole acquisition station enters into low power mode of operation; Field programmable gate array detects new user command: acquisition station is set breaks away from idle pulley; Field programmable gate array control analog power is opened then; Analog circuit unit restores electricity, and whole collector enters into normal mode of operation.
See Fig. 3, the mimic channel low power consumption control realizes through closing analog power.The 12VDC power conversion that analog part needs ± 5V among the present invention, ± 2.5V power supply type, these power supplys all insert from the outside obtains.Wherein 12V changes 5V employing LT3430 chip, and this chip input pin 15 is the low power consumption control pin, and when incoming level was low level, output was closed; 12V commentaries on classics-5V adopts the LT1617 chip, and this chip input pin 4 is the low power consumption control pin, and when incoming level was low level, output was closed; 2.5V power supply is obtained through chip LT1763 conversion by the 5V of LT3430 output ,-2.5V power supply by LT1617 output-5V obtains through chip LT1964 conversion.Through control chip LT1617 and LT3420 low-power consumption pin level, can close these two chips ± 5V output, and then close ± 2.5V output, thereby accomplish the closing of whole mimic channel power supply to save power consumption.
Claims (5)
1. be applicable to the adaptivity low-power consumption method of land geophysical survey data acquisition station; Described geophysical survey data acquisition station includes interconnective field programmable gate array and analog circuit unit; Be connected in the interface unit on the field programmable gate array; The analog power that is connected with analog circuit unit, and the digital power module that is connected with interface unit with field programmable gate array respectively; Interface unit comprises command channel interface unit and data channel interface unit; It is characterized in that: described analog power is connected with field programmable gate array; Described adaptivity low-power consumption method specifically may further comprise the steps:
(1), after acquisition station powers on, at first field programmable gate array carries out the operation of initialization and self-checking successively, field programmable gate array is waited for user command then, and fill order;
(2), field programmable gate array detects acquisition station work at present pattern; When detecting acquisition station, field programmable gate array is in idle pulley; Then start the low-power consumption counting module of field programmable gate array, get into the timing of low power mode of operation, after the low-power consumption counting module reaches count threshold; Field programmable gate array control analog power is closed; Analog power stops the analog circuit unit power supply, and analog circuit unit promptly stops collecting work, and whole acquisition station enters into low power mode of operation.
2. the adaptivity low-power consumption method that is applicable to land geophysical survey data acquisition station according to claim 1; It is characterized in that: the low-power consumption counting module of described field programmable gate array is in counting process; Field programmable gate array receives new user command: acquisition station is set breaks away from idle pulley; The low-power consumption counting module of field programmable gate array promptly stops to count the horizontal reset of going forward side by side, and field programmable gate array gets into normal mode of operation again simultaneously.
3. the adaptivity low-power consumption method that is applicable to land geophysical survey data acquisition station according to claim 1; It is characterized in that: after described whole acquisition station enters into low power mode of operation; Field programmable gate array detects new user command: acquisition station is set breaks away from idle pulley; Field programmable gate array control analog power is opened then, and analog circuit unit restores electricity, and whole collector enters into normal mode of operation.
4. the adaptivity low-power consumption method that is applicable to land geophysical survey data acquisition station according to claim 1, it is characterized in that: after the low-power consumption counting module reached count threshold, the low-power consumption counting module stopped counting work in the described step 2.
5. the adaptivity low-power consumption method that is applicable to land geophysical survey data acquisition station according to claim 1; It is characterized in that: work as whole acquisition station in the described step 2 and enter into low power mode of operation; Wherein the data channel interface unit is a low power consumpting state, and field programmable gate array and command channel interface unit are kept normal operating conditions.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425713A (en) * | 2015-11-02 | 2016-03-23 | 合肥国为电子有限公司 | Low-consumption control method suitable for geophysical exploration cross station |
| RU2650837C2 (en) * | 2013-03-11 | 2018-04-17 | Ион Джиофизикал Корпорейшн | Power savings mode for ocean bottom seismic data acquisition systems |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984365A (en) * | 2010-10-22 | 2011-03-09 | 中国石油化工股份有限公司 | Micro-electromechanical digital geophone communication system and method |
| CN102012518A (en) * | 2010-11-25 | 2011-04-13 | 北京建筑工程学院 | Intrinsically-safe 24-bit seismic data acquisition circuit board |
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- 2012-07-24 CN CN2012102573757A patent/CN102809760A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984365A (en) * | 2010-10-22 | 2011-03-09 | 中国石油化工股份有限公司 | Micro-electromechanical digital geophone communication system and method |
| CN102012518A (en) * | 2010-11-25 | 2011-04-13 | 北京建筑工程学院 | Intrinsically-safe 24-bit seismic data acquisition circuit board |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2650837C2 (en) * | 2013-03-11 | 2018-04-17 | Ион Джиофизикал Корпорейшн | Power savings mode for ocean bottom seismic data acquisition systems |
| USRE48594E1 (en) | 2013-03-11 | 2021-06-15 | Ion Geophysical Corporation | Power savings mode for ocean bottom seismic data acquisition systems |
| CN105425713A (en) * | 2015-11-02 | 2016-03-23 | 合肥国为电子有限公司 | Low-consumption control method suitable for geophysical exploration cross station |
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Application publication date: 20121205 |