CN101813788B - Guiding system and guiding method for non-excavating - Google Patents
Guiding system and guiding method for non-excavating Download PDFInfo
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- CN101813788B CN101813788B CN201010148049.3A CN201010148049A CN101813788B CN 101813788 B CN101813788 B CN 101813788B CN 201010148049 A CN201010148049 A CN 201010148049A CN 101813788 B CN101813788 B CN 101813788B
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Abstract
The invention provides a guiding system and a guiding method for non-excavating. The non-excavating guiding system comprises a detection probe (1) for acquiring information, a first processor (2) for pre-processing the information acquired by the detection probe, a second processor (3) for performing frequency domain processing on the information processed by the first processor, and a synchronous display (4) for displaying the information processed by the second processor. The second processor (3) comprises a spectrum analyzer (31); and the spectrum analyzer (31) is used for analyzing one or more predetermined signal frequency ranges, and processing the analyzed information to select one frequency or one frequency range of which the signal-to-noise ratio of signals is relatively larger.
Description
Technical field
The present invention relates to guidance system and guidance method, relate in particular to a kind of guidance system for trenchless technology and guidance method, especially, non-excavation guidance system provided by the present invention and non-excavation guidance method can be resisted noise.
Background technology
Trenchless technology refers to means such as utilizing ground guiding, directional drilling, the in the situation that of not grooving of earth's surface, carries out the technology of the construction such as laying, change or repair various underground utilities.This technical society remarkable in economical benefits, especially can cannot implement to excavate the regional pipeline installation of operation, as road crossing, railway, buildings, river, protected location, historic site, business district, crops and vegetation protection district etc. at some.This technology has now been widely used in the engineering departments such as combustion gas, telecommunications and electric power.
In the use procedure of trenchless technology, need to lead, and in guiding process, a very crucial problem is exactly how to resist noise.Generally, noise is conventionally from following several aspects: the first, and with the conductor generation disturbing magnetic field of electric current, this is commonly called active interference; The second, conductor is launched signal again after receiving launcher signal, and this is commonly called passive interference; The 3rd, launcher signal conductively-closed is fallen, and this is commonly called shielded signal.Wherein, in many cases, active interference is the main source of noise, is also trenchless technology field technical matters urgently to be resolved hurrily.
In order to resist active interference, designer or operating personnel can take following two schemes to deal with active interference conventionally.The first scheme is exactly the transmitter that adopts two different frequencies, wherein, in the situation that interference region only has a strong interferers, can select another transmitter; But the shortcoming of this scheme is, only finds in the situation of interference source, just can use another transmitter, only have and in the situation of getting to interference source, just need to select second frequency, drilling rod will all be drawn back like this, loses time, manpower also increases the danger of not returning foramen primum simultaneously.First scheme adopts double frequency to launch (that is, any time all launches by two frequencies) exactly simultaneously; But the shortcoming of this scheme is, the power supply of transmitter is fixed, or shortens the service time of transmitter, can encounter again transmitter and not have electric problem when long working.Reduce the power of transmitter, will certainly reduce like this degree and the longest distance the most deeply of transmitter.
Therefore, wish to develop a kind of technology that can solve above-mentioned weak point of the prior art, that is to say, wish to exist a kind of non-excavation guidance system, make this non-excavation guidance system can there is simple structure and can save the energy consumption while using, reducing thus manufacturing cost and use cost.
Summary of the invention
In order to solve above-mentioned some or all of technical matters, the present invention proposes a kind of non-excavation guidance system and the non-excavation guidance method that can measure active interference, described non-excavation guidance system has simple structure and can save the energy consumption while using, reduce thus manufacturing cost and use cost, in addition, non-excavation guidance system provided by the present invention has also solved the technical matters of existing unnecessary waste battery in double frequency used time launch scenario.And the present invention also provides a kind of non-excavation guidance method, described scheme has the advantage similar with above-mentioned non-excavation guidance system.
Of the present invention aspect first in, a kind of non-excavation guidance system is provided, described non-excavation guidance system comprises:
Survey probe, for obtaining information;
First processor, for surveying the information that probe obtains described in pre-service;
The second processor, carries out frequency domain processing for the information after described first processor is processed; And
Synchronization indicator, for showing the information after described the second processor is processed.
In a preferred embodiment, described the second processor comprises a spectrum analyzer, described spectrum analyzer is for analyzing predetermined one or more signal frequency ranges, and the information is by analysis processed, to select relatively large frequency of the signal to noise ratio (S/N ratio) of signal or frequency range.
Wherein, " predetermined one or more signal frequency ranges " can be one or more signal frequency ranges of interested one or more signal frequency range or hope research.
Non-excavation guidance system provided by the present invention has been considered signal spectrum, operating personnel can be analyzed predetermined one or more signal frequency ranges, thereby this non-excavation guidance system can help operating personnel before the instrument such as transmitter drill bit enters ground, select a spectral range that noise is less, and avoid the larger spectral range of noise known simultaneously in guiding process.
Like this, non-excavation guidance system provided by the present invention has been realized noise opposing effectively with simple means, and more particularly, these means are particularly suitable for resisting active interference.
It should be noted that, described spectrum analyzer and the second processor can be separated devices, but both also can totally be realized by a processor, that is to say, described spectrum analyzer can be integrated in described the second processor the part as processor.
In a preferred embodiment, described the second processor further comprises a tracker, and the variation of spending the most deeply for signal to noise ratio (S/N ratio) and/or the prediction of the one or more signals to predetermined is followed the tracks of.By arrange a tracker in described non-excavation guidance system, the accuracy of described non-excavation guidance system has obtained further assurance.And described the second processor further can comprise display one by one, is shown to user's noise and frequency selection information.
Preferably, described the second processor can also utilize signal to noise ratio (S/N ratio) information to spending and estimate the most deeply with any method on guide instrument.Like this, further improve guiding accuracy and improved engineering efficiency.
In non-excavation guidance system, display is synchronization indicator.Like this, display can show the information that probe obtains of surveying in real time.And non-excavation guidance system can utilize signal to noise ratio (S/N ratio) message advises user to select optimum frequency by any way.This advisory information may be displayed on synchronization indicator, makes operating personnel can understand in real time noise states and react in time.Similarly, so also can further improve guiding accuracy and improve engineering efficiency.
In a preferred embodiment, described detection probe comprises a dimensional antenna.
In a preferred embodiment, described non-excavation guidance system also comprises an input media, for inputting user instruction.Like this, operating personnel can control the operation of described non-excavation guidance system at any time according to shown detection information.
In a preferred embodiment, spectrum analyzer adopts Fourier transform to produce spectrum information.Specifically, spectrum analyzer can comprise Fourier transformer, for producing spectrum information by Fourier transform.
In another preferred embodiment, described first processor comprises an analog to digital converter, for signal is carried out to analog to digital conversion.
In a preferred embodiment, described non-excavation guidance system is used to non-digging drill.So, adopted and according to the non-digging drill of non-excavation guidance system of the present invention, can obtain the institute that the present invention can provide and have superiority, can resist noise (especially active interference), there is simple structure and can save the energy consumption while using, reduce thus manufacturing cost and use cost.
According to a further aspect in the invention, provide a kind of guidance method for non-excavation, for controlling or operate non-excavation guidance system as above.Those skilled in the art are understandable that, according to the guidance method for non-excavation of the present invention, can obtain equally according to obtainable the having superiority of guidance system for non-excavation of the present invention after reading the application's text.
Accompanying drawing explanation
Fig. 1 is the schematic block diagram of non-excavation guidance system according to an embodiment of the invention;
Fig. 2 is according to the simple schematic block diagram of the signal processing flow of the second processor of the non-excavation guidance system of the embodiment of the present invention;
Fig. 3 is the structural representation of the spectrum analyzer using in embodiments of the present invention shown in Fig. 2; And
Fig. 4 is the schematic block diagram of non-excavation guidance system according to another embodiment of the invention.
Note, accompanying drawing is illustrative and not restrictive, and it is for explaining, but not limits the scope of the invention.
Embodiment
Referring now to accompanying drawing, embodiments of the invention are described.
Referring now to Fig. 1,, Fig. 1 is the schematic block diagram of non-excavation guidance system 100 according to an embodiment of the invention.
The spectrum signal that the second processor 3 produces is input to display 4 (specifically, can be a synchronization indicator), for example Embedded Synchronous display.The analysis result of 4 pairs of spectrum analyzers 31 of display shows, so that the operating personnel of non-excavation guidance system 100 can be known analysis result.
Further, non-excavation guidance system 100 shown in Fig. 1 also comprises an input media 5, it can be for example the input media of keyboard or mouse and so on, the operating personnel of non-excavation guidance system 100 can be via this input media 5 to non-excavation guidance system 100 input user instructions, so that the operation of non-excavation guidance system 100 is indicated, or change the operation of non-excavation guidance system 100.Like this, last, operating personnel can indicate non-excavation guidance system 100 to carry out the frequency that choice for use signal to noise ratio (S/N ratio) is larger (or larger frequency range of signal to noise ratio (S/N ratio)).Specifically, operating personnel can input instructions to the second processor 3 by input media 5, thereby indicate non-excavation guidance system 100 to operate according to user instruction.For example operating personnel can be to the second processor 3 input instructions, to control by 3 pairs of operations of surveying probe 1 of the second processor.And display 4 can also show relevant information in real-time synchronization ground.
Fig. 2 is according to the simple schematic block diagram of the signal processing flow of the second processor 3 of the non-excavation guidance system of the embodiment of the present invention.Specifically, via digital signal X, Y and Z after analog to digital converter 21 conversions, in totalizer, be added, then utilize a Fourier transformer to carry out Fourier transform to the signal after being added, thereby obtain spectrum signal.Finally, the spectrum signal obtaining is carried out to spectrum analysis, signal to noise ratio (S/N ratio) that for example particularly can analytic signal, to obtain the result of hope.
Referring to Fig. 3, wherein Fig. 3 is the structural representation of the spectrum analyzer 31 using in embodiments of the present invention shown in Fig. 2.
Spectrum analyzer 31 shown in Fig. 3 comprises: totalizer 311, for signal is added; Fourier transformer 312, for being transformed into frequency-region signal by time-domain signal; And noise analyzer 312, for analyzing the feature of noise signal.
From description above, the present invention has adopted a kind of analytical approach that is called Dynamic Signal that is called as.Wherein, signal is carried out to the collection of time domain, then it is carried out to Fourier transform, convert thereof into frequency-region signal.The feature of the method is that velocity ratio is very fast, has higher sampling rate, higher resolution.Even two sigtnal intervals are very near, with Fourier transform, also they can be distinguished.
Above-described Fig. 1 has provided one embodiment of the present invention to embodiment illustrated in fig. 3, but to this embodiment only for explanation.For example, in another concrete preferred embodiment, adopted the dimensional antenna of the instrument that for example model is GL-515, and utilized analog to digital converter that signal is carried out to analog to digital conversion to be sent to signal processor.Signal processor (spectrum analyzer) is by utilizing Fourier transform (FFT) to produce frequency-region signal frequency spectrum.After this, CPU for example, by the distribution situation of display (display screen of GL-515) display noise.Finally, carry out noise analysis processing, to select a frequency that noise is relatively little.
Can make further improvement to the embodiment shown in Fig. 1.Referring now to Fig. 4,, Fig. 4 is the schematic block diagram of non-excavation guidance system according to another embodiment of the invention.
Can find out, Fig. 3 is substantially similar with Fig. 1, and difference is that the second processor 3 in the non-excavation guidance system 200 shown in Fig. 3 also comprises a tracker 32.Tracker 32 can be used for the variation of interested one or more signal frequency ranges to follow the tracks of.By utilizing tracker 32 to carry out the situation of change of tracking signal frequency spectrum, so just for the situation of detection noise in real time provide may, operating personnel can monitor the situation of change of noise (especially active interference) at any time like this.Specifically, this tracker 32 can receive the signal (this signal may be pretreated) from dimensional antenna 11 in real time, and the variation of signal is followed the tracks of.The output of tracker 32 can input to spectrum analyzer 31, so that real-time, must analyze obtained spectrum information.Thereby make operating personnel can select in real time best frequency or frequency range.
Alternatively or additionally, tracker 32 preferably also can be used for to prediction the most deeply degree or prediction the most deeply the variation of degree carry out tracing and monitoring.Thereby can further improve the efficiency of non-excavation guidance system 200 provided by the present invention.
Further, for example, the second processor 3 can also comprise a warning horn (not shown in figures), when there is larger active interference in the frequency of non-excavation guidance system 200 initial selected, warning horn gives the alarm and notifies operating personnel, so that operating personnel can tackle in time, to make such as operations such as Modification Frequencies.
Although the form with tripping device that it should be noted that has shown first processor and the second processor, it will be appreciated by persons skilled in the art that first processor and the second processor can be integrated into a total processor.Or alternatively, the partial function of first processor can be realized by the second processor, and on the contrary, the partial function of the second processor also can be realized by first processor.Without departing from the spirit and scope of the present invention, specifically do not limit the implementation of first processor and the second processor.
It should be noted that above-described embodiment is to illustration of the present invention and non-limiting, and those skilled in the art can design a variety of alternate embodiments under the prerequisite of scope that does not depart from claim.In the claims, the reference number that is placed in bracket should not be understood to claim to be construed as limiting.Word " comprises " element do not got rid of beyond the listed element of claim or step or the existence of step.Be used in element word " " before and do not get rid of the existence of a plurality of this kind of elements.The present invention can realize by the hardware that comprises several distinct elements, also can be realized by software.In having enumerated the claim to a product of several devices, these devices can be realized by an identical hardware or software.The situation of quoting from limited means in mutually different dependent claims does not represent to obtain advantage with the combination of these means.
Claims (1)
1. a non-excavation guidance system, described non-excavation guidance system comprises:
Survey probe (1), for obtaining information;
First processor (2), for surveying the information that probe obtains described in pre-service;
The second processor (3), carries out frequency domain processing for the information after described first processor is processed; And
Synchronous aobvious not device (4), for showing the information after described the second processor is processed.
Wherein said the second processor (3) comprises a spectrum analyzer (31); described spectrum analyzer (31) is for analyzing predetermined one or more signal frequency ranges; and the information is by analysis processed, to select relatively large frequency of the signal to noise ratio (S/N ratio) of signal or frequency range;
Wherein said the second processor (3) further comprises a tracker (32), for signal to noise ratio (S/N ratio) and/or the prediction of the one or more signal frequency ranges to predetermined, spends and follows the tracks of the most deeply;
Wherein said first processor (3) is for utilizing signal to noise ratio (S/N ratio) information to spending and estimate the most deeply;
Wherein said non-excavation guidance system utilizes signal to noise ratio (S/N ratio) message advises user to select optimum frequency, and described synchronization indicator (4) can be user's display noise and frequency selection information;
Wherein, described non-excavation guidance system also comprises an input media (5), for inputting user instruction; And described detection probe (1) comprises dimensional antenna (11);
Wherein spectrum analyzer (31) comprises Fourier transformer (312), for producing spectrum information by Fourier transform;
Wherein said first processor comprises an analog to digital converter (21), for signal is carried out to analog to digital conversion;
Wherein said non-excavation guidance system is used to non-digging drill.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010148049.3A CN101813788B (en) | 2010-04-16 | 2010-04-16 | Guiding system and guiding method for non-excavating |
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| CN201010148049.3A CN101813788B (en) | 2010-04-16 | 2010-04-16 | Guiding system and guiding method for non-excavating |
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| CN101813788B true CN101813788B (en) | 2014-02-05 |
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| CN103510949B (en) * | 2013-08-30 | 2017-02-08 | 中国石油天然气集团公司 | Directional drill hole profile measurement and detection system and method |
| CN113756721B (en) * | 2020-05-29 | 2024-05-07 | 宁波金地电子有限公司 | Method for eliminating inclination angle accumulation error of drilling system |
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