CN102269827A - System and method for realizing testing of geophysical exploration digital packet - Google Patents
System and method for realizing testing of geophysical exploration digital packet Download PDFInfo
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- CN102269827A CN102269827A CN201110161074XA CN201110161074A CN102269827A CN 102269827 A CN102269827 A CN 102269827A CN 201110161074X A CN201110161074X A CN 201110161074XA CN 201110161074 A CN201110161074 A CN 201110161074A CN 102269827 A CN102269827 A CN 102269827A
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Abstract
The invention discloses a system and method for realizing testing of a geophysical exploration digital packet, wherein the system comprises a digital packet testing device, and the method is as follows: the digital packet testing device is used for sending an analog signal to the digital packet to be tested and comparing the signal received from the digital packet to be tested with the analog signal for testing the signal transmission function of the digital packet to be tested; and the digital packet to be tested is used for taking the signal sent by the digital packet testing device as a downlink signal for receiving, and the received signal is taken as an uplink signal for sending to the digital packet testing device. By adopting the system and the method, the difficult problem of testing the geophysical exploration digital packet can be solved, the reliability and the stability in a seismic data acquisition system are improved and accurate reference data are provided for late-stage fine development of an oilfield, marine reservoir exploration and other applications.
Description
Technical field
The present invention relates to geophysical exploration technology, relate in particular to the system and method for test realization the geophysical survey digital packets.
Background technology
System for acquiring seismic data is the equipment of most critical in the seismic prospecting, and seismic exploration has working range and reaches characteristics such as the data acquisition transmission apparatus is many greatly, and therefore, the work of testing at the mass data transmission unit also just seems extremely important.
The transmission of seismic data unit is called as digital packets, and digital packets can connect other transmission package of a plurality of acquisition channels and front and back level.Usually, the digital packets of a plurality of cascades is dragged by the boats and ships of being responsible for seismic exploration, is called as the prime digital packets near the digital packets that drags boats and ships, is called as back stages of digital bag away from the digital packets that drags boats and ships; The data of gathering are transferred to step by step by the prime digital packets by back stages of digital bag and drag boats and ships.Therefore, a numeral need receive the data of acquisition channel and the data of stages of digital bag thereafter when wrapping in work, and the data that receive to its prime digital packets transmission.
At present, the geological data of system for acquiring seismic data collection more and more is widely used, and for example is applied to meticulous exploitation of oil field later stage and ocean reservoir exploration etc.; Therefore whether function, the performance of digital packets be normal, be directly connected to reliability, the stability of earthquake data acquisition and the effect of using, so need test to the function and the performance of the digital packets in the acquisition system, comprise the test of data-transformation facility, command process function and various electric properties, and test process had following ask for something digital packets:
(1) measures the power consumption situation of digital packets, and under the unusual situation of digital packets power consumption, can cut off the power supply automatically;
(2) measure the static electric property of digital packets, comprise inner a series of resistance and line break-make situation;
(3) data of unit transmission are docked in simulation with digital packets, comprise the data of acquisition channel and transmission channel.
Because a digital packets can connect 8 acquisition channels at most, needs the digital packets acquisition system can simulate the data characteristic that is surrounded by the unit of information interaction with numeral to be measured usually, comprises the mutual order and the transmitting-receiving of data; Wherein because the digital packets number that the digital packets acquisition system can comprise is more, the digital packets volume of transmitted data is also bigger, digital packets to be measured is also needed to carry out the measurement of electric property, also need the electric property and the data transmission performance of digital packets to be measured are measured successively in some occasion.This shows, big to the test job amount of digital packets to be measured, and content measurement is also more and complicated, if obviously be difficult to finish by the manual testing.
Yet still none can realize technical scheme of robotization ground test at digital packets in existing system for acquiring seismic data, this obviously extremely incompatibility growing the requirement of geological data application technology.For this reason, need provide a kind of proving installation of geophysical survey digital packets, can the function and the performance of flood tide digital packets in the system for acquiring seismic data be realized changing fast and automatically and test efficiently, thereby can satisfy the requirement that geological data is used.
Summary of the invention
Technical matters to be solved by this invention provides a kind of system and method for realizing testing the geophysical survey digital packets, can carry out automatic test to flood tide digital packets in the system for acquiring seismic data.
In order to solve the problems of the technologies described above, the invention provides a kind of system that realizes testing the geophysical survey digital packets, comprise interconnective digital packets proving installation and digital packets to be measured, wherein:
The digital packets proving installation is used for the signal of simulation is sent to digital packets to be measured, and will compare from the signal of digital packets reception to be measured and the signal of simulation, to test the signal transfer functions of digital packets to be measured;
Digital packets to be measured is used for the signal that the digital packets proving installation sends is received as downgoing signal, and the signal that receives is sent to the digital packets proving installation as upward signal.
Further,
The digital packets proving installation sends to the signal of the simulation of digital packets to be measured, comprises the data and/or the order of simulation; To compare from the signal of digital packets reception to be measured and the signal of simulation, comprise and to compare from the data of digital packets reception to be measured and the data of simulation, and/or will compare from the order of digital packets reception to be measured and the order of simulation, with the data and/or the command transfer function of testing digital packets to be measured.
Further,
The digital packets proving installation is also tested the electric property of digital packets to be measured, comprises test digital packets data receiver resistance to be measured.
Further, this system also comprises control terminal, wherein:
Control terminal is used for to test transmission order of digital packets proving installation and/or test data by USB interface or short range wireless transmission interface and the coupling of digital packets proving installation;
The digital packets proving installation is according to the test command and/or the test data of control terminal transmission, the signal of pre-configured and storage simulation; In the time will testing the signal transfer functions of digital packets to be measured, selection inserts an impedance matching circuit data receiver of digital packets to be measured, the signal of simulation is sent to digital packets to be measured successively, and the signal of signal that will receive successively from digital packets to be measured and corresponding simulation relatively, and normally whether signal transfer functions that to judge test digital packets to be measured according to comparative result; In the time will testing the electric property of digital packets to be measured, select a current source circuit is inserted the data receiver of described digital packets to be measured, with the resistance of test data receiving end.
In order to solve the problems of the technologies described above, the invention provides a kind of method that realizes testing the geophysical survey digital packets, relate to digital packets proving installation and digital packets to be measured, this method comprises:
The digital packets proving installation sends to digital packets to be measured with the signal of simulation;
Digital packets to be measured receives the signal that the digital packets proving installation sends as downgoing signal, and the signal that receives is sent to the digital packets proving installation as upward signal;
The digital packets proving installation will compare from the signal of digital packets reception to be measured and the signal of simulation, to test the signal transfer functions of digital packets to be measured.
Further,
The signal of the simulation that the digital packets proving installation sends comprises the data and/or the order of simulation; To compare from the signal of digital packets reception to be measured and the signal of simulation, comprise and to compare from the data of digital packets reception to be measured and the data of simulation, and/or will compare from the order of digital packets reception to be measured and the order of simulation, with the data and/or the command transfer function of testing digital packets to be measured.
Further, this method also comprises:
The digital packets proving installation is tested the electric property of digital packets to be measured, comprises that the control selection inserts digital packets data receiver to be measured with current source circuit, to test digital packets data receiver resistance to be measured.
Further, this method also relates to control terminal, and this method also comprises:
Control terminal is by USB interface or short range wireless transmission interface and the coupling of digital packets proving installation, to test transmission order of digital packets proving installation and/or test data;
The digital packets proving installation is according to the test command and/or the test data of control terminal transmission, the signal of pre-configured and storage simulation.
Further, this method specifically comprises:
The digital packets proving installation according to test command and/or described test data in the time will testing the signal transfer functions of digital packets to be measured, selection inserts an impedance matching circuit data receiver of digital packets to be measured, the signal of simulation is sent to digital packets to be measured successively, and the signal of signal that will receive successively from digital packets to be measured and corresponding simulation relatively, and normally whether signal transfer functions that to judge test digital packets to be measured according to comparative result.
Press further, the digital packets proving installation is tested digital packets data receiver resistance to be measured, specifically comprises:
In the time will testing the electric property of digital packets to be measured, select current source circuit is inserted the data receiver of digital packets to be measured according to test command and/or test data, the resistance of data receiving end is tested.
The system and method that the present invention constitutes by structure dedicated test circuit device and corresponding software kit, solved the difficult problem of geophysical survey digital packets test, this proving installation is pointed by force, test speed is fast, automaticity is high and test characteristics such as flexible, the efficient and the accuracy of digital packets function and performance test have been improved, and improved the reliability and stability of system for acquiring seismic data, for application such as meticulous exploitation of oil field later stage and ocean reservoir exploration provide reference data accurately.
Description of drawings
Fig. 1 is the structured flowchart of the system embodiment of realization geophysical survey digital packets test of the present invention;
Fig. 2 is the theory diagram of the proving installation embodiment of geophysical survey digital packets of the present invention;
Fig. 3 is the theory diagram of resistance measuring circuit among the proving installation embodiment shown in Figure 2;
Fig. 4 is the theory diagram of the concrete enforcement circuit of proving installation embodiment shown in Figure 2;
Fig. 5 is the process flow diagram of the method for testing embodiment of geophysical survey digital packets of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment technical scheme of the present invention is at length set forth.The embodiment that below exemplifies only is used for description and interpretation the present invention, and does not constitute the restriction to technical solution of the present invention.
As shown in Figure 1, be the system embodiment of realization geophysical survey digital packets test of the present invention, comprise interconnective digital packets proving installation 110 of the present invention and digital packets to be measured 120, wherein:
Digital packets proving installation 110 is used for the signal of simulation is sent to digital packets 120 to be measured, and will compare from the signal of digital packets 120 receptions to be measured and the signal of simulation, to test the signal transfer functions of digital packets 120 to be measured;
Among the said system embodiment,
Digital packets proving installation 110 sends to the signal of the simulation of digital packets 120 to be measured, comprises the data and/or the order of simulation; To compare from the signal of digital packets 120 receptions to be measured and the signal of simulation, comprise and to compare from the data of digital packets 120 receptions to be measured and the data of simulation, and/or will compare from the order of digital packets 120 receptions to be measured and the order of simulation, with the data and/or the command transfer function of testing digital packets 120 to be measured.
Said system embodiment also comprises control terminal 130, wherein:
Control terminal 130 (a for example portable terminal) by USB interface or short range wireless transmission interface and 110 couplings of digital packets proving installation, is used for to digital packets proving installation 110 test transmission order and/or test datas;
The signal of the pre-configured and storage simulation of digital packets proving installation 110, test command and/or test data according to control terminal 130 transmission send to digital packets 120 to be measured successively with signal pre-configured and the storage simulation, and will compare with corresponding signal of simulating from the signal that digital packets 120 to be measured receives successively, if comparative result unanimity, the signal transfer functions of then judging test digital packets 120 to be measured is normal, otherwise judges that its signal transfer functions is unusual.
In said system embodiment,
Digital packets proving installation 110 is also tested the electric property of digital packets 120 to be measured, comprises test digital packets 120 data receiver resistance to be measured.
In said system embodiment, digital packets proving installation 110 further comprises signal receiver equalization circuitry, data signal conversion circuit 1, control circuit, data signal conversion circuit 2 and the signal preemphasis circuit that connects successively, wherein:
The signal receiver equalization circuitry is used for exporting to data signal conversion circuit 1 to after carrying out signal equalization from the serial data of digital packets reception to be measured;
Data signal conversion circuit 1, be used for to the input serial data convert parallel data to after, export to control circuit;
Control circuit is used for pre-configured simulation parallel data is exported to data signal conversion circuit 2, parallel data and the simulation parallel data of importing is compared, to test the data-transformation facility of digital packets to be measured;
Data signal conversion circuit 2, be used for to the input parallel data convert serial data to after, export to the signal preemphasis circuit;
The signal preemphasis circuit is used for the serial data of input is carried out sending to digital packets to be measured after the signal pre-emphasis handles.
Data signal conversion circuit 1 is also carried out the mistake proofing encoding process with the parallel data that converts to, for example 8 bit parallel digital coding is become corresponding 10 (or more multidigit) parallel datas;
Data signal conversion circuit 2 is also carried out the mistake proofing decoding processing to the parallel data of input, for example 10 (or more multidigit) parallel datas is decoded into corresponding 8 bit parallel data.
Above-mentioned digital packets proving installation 110 also comprises digital packets command signal change-over circuit 1 and the digital packets command signal change-over circuit 2 that is connected with control circuit successively, wherein:
Digital packets command signal change-over circuit 1 is used for exporting to control circuit with the serial order conversion of signals that receives from digital packets to be measured is become the parallel command signal;
Control circuit is exported to digital packets command signal change-over circuit 2 with pre-configured simulation parallel command signal, the parallel command signal of input is compared with the simulation parallel command signal of exporting to digital packets command signal change-over circuit 2, to test the command transfer function of digital packets to be measured;
Digital packets command signal change-over circuit 2, be used for to the input the parallel command conversion of signals become the serial order signal after, send to the test digital packets to be measured.
Above-mentioned digital packets proving installation 110 also comprises channel command signaling conversion circuit and the channel data signal change-over circuit that is connected with control circuit successively, wherein:
The channel command signaling conversion circuit is used for becoming the concurrent testing command signal to export to control circuit the serial test command conversion of signals of control terminal output;
The channel data signal change-over circuit is used for becoming the concurrent testing data-signal to export to control circuit the serial test data conversion of signals of control terminal output;
Control circuit is initiated signal transfer functions and/or electric property according to the concurrent testing command signal and the concurrent testing data-signal of test from input to digital packets to be measured.
Above-mentioned digital packets proving installation 110 also comprises the resistance measuring circuit that is connected between digital packets to be measured and the control circuit control output end, wherein:
Control circuit makes the control output end export an impedance matching circuit incoming control signal in the time will testing the signal transfer functions of digital packets to be measured; In the time will testing the data receiver resistance of digital packets to be measured, make the control output end export a current source incoming control signal;
Resistance measuring circuit comprises a MUX and the impedance matching circuit and the current source circuit that are connected at least two input ends of this MUX, as shown in Figure 3, and wherein:
MUX, the signal that is used for selecting impedance matching circuit under the control of impedance matching circuit incoming control signal select the constant current source signal of current source circuit as output signal under the control of current source incoming control signal as output signal;
Impedance matching circuit is used under the selection of MUX inserting the data receiver of digital packets to be measured, to test the signal transfer functions of digital packets to be measured;
Current source circuit is used under the selection of MUX the resistance output constant current source to the data receiver of digital packets to be measured, to test the data receiver resistance of digital packets to be measured.
As shown in Figure 4, be the concrete circuit of implementing of digital packets proving installation 110 embodiment of the present invention shown in Figure 2, wherein:
Signal receiver equalization circuitry, signal preemphasis circuit correspondingly adopt (the NS of National Semiconductor respectively, National Semiconductor) Clc012 of company and Clc001 circuit, data signal conversion circuit 1, data signal conversion circuit 2 correspondingly adopt the 7b933 and the 7b923 circuit of CYPRESS company respectively; Control circuit then adopts field programmable gate array (FPGA, Field-Programmable Gate Array) circuit arrangement, certainly, in addition also can adopt microprocessor, microcontroller circuit; Digital packets command signal change-over circuit 1 and digital packets command signal change-over circuit 2 correspondingly adopt Max3490e, Max3491e circuit respectively, and channel command signaling conversion circuit, channel data signal change-over circuit then correspondingly adopt Max3044, Max3283e circuit respectively.
The present invention is directed to said system, device embodiment, the method for testing embodiment of geophysical survey digital packets correspondingly also is provided, relate to digital packets proving installation of the present invention and digital packets to be measured, its flow process comprises as shown in Figure 5:
110: the signal that the digital packets proving installation is pre-configured and storage is simulated;
120: the control of digital packets proving installation is selected impedance matching circuit is inserted digital packets data receiver to be measured, and the signal of simulating is sent to digital packets to be measured;
When the digital packets proving installation will be tested the signal transfer functions of digital packets to be measured, select impedance matching circuit is inserted digital packets data receiver to be measured by a MUX.
130: digital packets to be measured receives the signal that the digital packets proving installation sends as downgoing signal, and the signal that receives is sent to the digital packets proving installation as upward signal;
140: the signal that the digital packets proving installation will receive from digital packets to be measured and the signal comparison of the simulation of storage, to test the signal transfer functions of digital packets to be measured.
The digital packets proving installation sends to the signal of the simulation of digital packets to be measured, comprises the data and/or the order of simulation; To compare from the signal of digital packets reception to be measured and the signal of simulation, comprise and to compare from the data of digital packets reception to be measured and the data of simulation, and/or will compare from the order of digital packets reception to be measured and the order of simulation, with the data and/or the command transfer function of testing digital packets to be measured.
Said method embodiment also comprises:
150: the control of digital packets proving installation is selected current source circuit is inserted digital packets data receiver to be measured, to test digital packets data receiver resistance to be measured.
When the electric property that will test digital packets to be measured when the digital packets proving installation is data receiver resistance, select a current source circuit is inserted digital packets data receiver to be measured by above-mentioned MUX, make the constant current source of current source circuit output flow into the resistance of digital packets data receiver to be measured to test.
Said method embodiment also comprises (not shown among Fig. 5):
Test command and test data that digital packets proving installation basis receives from control terminal, the pre-configured and storage of the signal of simulating, and carry out the test of the signal transfer functions and the electric property of digital packets to be measured.
For those skilled in the art; after having understood content of the present invention and principle; can be under the situation that does not deviate from the principle and scope of the present invention; the method according to this invention is carried out various corrections and the change on form and the details, but these are based on correction of the present invention with change still within claim protection domain of the present invention.
Claims (10)
1. a system that realizes testing the geophysical survey digital packets is characterized in that, comprises interconnective digital packets proving installation and digital packets to be measured, wherein:
The digital packets proving installation is used for the signal of simulation is sent to digital packets to be measured, and will compare from the signal of digital packets reception to be measured and the signal of simulation, to test the signal transfer functions of digital packets to be measured;
Digital packets to be measured is used for the signal that the digital packets proving installation sends is received as downgoing signal, and the signal that receives is sent to the digital packets proving installation as upward signal.
2. according to the described system of claim 1, it is characterized in that,
Described digital packets proving installation sends to the signal of the simulation of described digital packets to be measured, comprises the data and/or the order of simulation; To compare from the signal of described digital packets reception to be measured and the signal of simulation, comprise and to compare from the data of described digital packets reception to be measured and the data of simulation, and/or will compare from the order of described digital packets reception to be measured and the order of simulation, with the data and/or the command transfer function of testing described digital packets to be measured.
3. according to the described system of claim 1, it is characterized in that,
Described digital packets proving installation is also tested the electric property of described digital packets to be measured, comprises the described digital packets data receiver resistance to be measured of test.
4. according to the described system of claim 3, it is characterized in that, also comprise control terminal, wherein:
Control terminal is used for to described digital packets proving installation test transmission order and/or test data by USB interface or short range wireless transmission interface and the coupling of described digital packets proving installation;
Described digital packets proving installation is according to the test command and/or the test data of control terminal transmission, and is pre-configured and store the signal of described simulation; In the time will testing the signal transfer functions of described digital packets to be measured, selection inserts an impedance matching circuit data receiver of described digital packets to be measured, the signal of described simulation is sent to digital packets to be measured successively, and the signal of signal that will receive successively from described digital packets to be measured and corresponding simulation relatively, and normally whether signal transfer functions that to judge described test digital packets to be measured according to comparative result; In the time will testing the electric property of described digital packets to be measured, select a current source circuit is inserted the data receiver of described digital packets to be measured, to test the resistance of described data receiver.
5. a method that realizes testing the geophysical survey digital packets relates to digital packets proving installation and digital packets to be measured, and this method comprises:
Described digital packets proving installation sends to described digital packets to be measured with the signal of simulation;
Digital packets to be measured receives the signal that described digital packets proving installation sends as downgoing signal, and the signal that receives is sent to described digital packets proving installation as upward signal;
Described digital packets proving installation will compare from the signal of digital packets reception to be measured and the signal of simulation, to test the signal transfer functions of digital packets to be measured.
6. in accordance with the method for claim 5, it is characterized in that,
The signal of the described simulation that described digital packets proving installation sends comprises the data and/or the order of simulation; To compare from the signal of described digital packets reception to be measured and the signal of simulation, comprise and to compare from the data of described digital packets reception to be measured and the data of simulation, and/or will compare from the order of described digital packets reception to be measured and the order of simulation, with the data and/or the command transfer function of testing described digital packets to be measured.
7. according to claim 5 or 6 described methods, it is characterized in that, also comprise:
Described digital packets proving installation is tested the electric property of described digital packets to be measured, comprises that the control selection inserts digital packets data receiver to be measured with current source circuit, to test digital packets data receiver resistance to be measured.
8. in accordance with the method for claim 7, it is characterized in that also relate to control terminal, this method also comprises:
Control terminal is by USB interface or short range wireless transmission interface and the coupling of described digital packets proving installation, to described digital packets proving installation test transmission order and/or test data;
Described digital packets proving installation is according to the test command and/or the test data of control terminal transmission, and is pre-configured and store the signal of described simulation.
9. in accordance with the method for claim 8, it is characterized in that this method specifically comprises:
Described digital packets proving installation according to described test command and/or described test data in the time will testing the signal transfer functions of described digital packets to be measured, selection inserts an impedance matching circuit data receiver of described digital packets to be measured, the signal of described simulation is sent to digital packets to be measured successively, and the signal of signal that will receive successively from described digital packets to be measured and corresponding simulation relatively, and normally whether signal transfer functions that to judge described test digital packets to be measured according to comparative result.
10. in accordance with the method for claim 8, it is characterized in that described digital packets proving installation is tested digital packets data receiver resistance to be measured, specifically comprises:
In the time will testing the electric property of described digital packets to be measured, select described current source circuit is inserted the described data receiver of described digital packets to be measured according to described test command and/or described test data, the resistance of described data receiver is tested.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310047237.0A CN103149602B (en) | 2011-06-15 | 2011-06-15 | A kind of proving installation of geophysical survey digital packets |
| CN 201110161074 CN102269827B (en) | 2011-06-15 | 2011-06-15 | System and method for realizing testing of geophysical exploration digital packet |
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| CN 201110161074 CN102269827B (en) | 2011-06-15 | 2011-06-15 | System and method for realizing testing of geophysical exploration digital packet |
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| CN201310047237.0A Division CN103149602B (en) | 2011-06-15 | 2011-06-15 | A kind of proving installation of geophysical survey digital packets |
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| CN201310047237.0A Expired - Fee Related CN103149602B (en) | 2011-06-15 | 2011-06-15 | A kind of proving installation of geophysical survey digital packets |
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| CN102354001A (en) * | 2011-06-16 | 2012-02-15 | 中国海洋石油总公司 | Device for testing geophysical exploration digital package |
| CN105068121A (en) * | 2015-07-30 | 2015-11-18 | 吉林大学 | Underground multi-node signal acquisition synchronous error correction device and method |
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| CN105068121A (en) * | 2015-07-30 | 2015-11-18 | 吉林大学 | Underground multi-node signal acquisition synchronous error correction device and method |
| CN108508477A (en) * | 2018-05-28 | 2018-09-07 | 中国石油天然气集团有限公司 | System for acquiring seismic data and method |
| CN108508477B (en) * | 2018-05-28 | 2020-06-09 | 中国石油天然气集团有限公司 | Seismic data acquisition system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102269827B (en) | 2013-06-19 |
| CN103149602B (en) | 2016-01-27 |
| CN103149602A (en) | 2013-06-12 |
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