CN101676521A - Horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system - Google Patents
Horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system Download PDFInfo
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- CN101676521A CN101676521A CN200810042999A CN200810042999A CN101676521A CN 101676521 A CN101676521 A CN 101676521A CN 200810042999 A CN200810042999 A CN 200810042999A CN 200810042999 A CN200810042999 A CN 200810042999A CN 101676521 A CN101676521 A CN 101676521A
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Abstract
The invention provides a horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system which comprises a controller, an acoustic wave signal excitation module and a detection signal acquisition module that are connected with the controller by circuits, a power supply module connected with the controller by the circuit, and a high speed data transmission module connected with the controller and a ground data processing system. The system adopts the surface wave detection technology to detect the positions of underground obstacles and can give an alarm to operating staff when in danger, can be flexibly configured with various excitation signals so as to be convenient for resolving a soil body response signal, and adopts a common-mode amplifying circuit to inhibit the interference of various spurious signals in the soil body.
Description
Technical field
The present invention relates to a kind of horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system.
Background technology
The horizontally-guided brill is a kind of non-excavating construction equipment in the urban municipal construction, and since its work progress " invisible ", the accurately accurate distribution of the existing underground utilities of understanding in advance, otherwise be easy to destroy underground existing pipeline, bring construction accident.
At present, generally adopt the physical prospecting equipment of ground handling to survey the distribution situation of underground utilities, as ground penetrating radar, underground pipeline finder etc.But because the restriction of detection principle, can there be certain detection blind area in the occasion in rich groundwater, line distribution complexity.In addition, the detection process of ground location equipment and the work progress of horizontally-guided seriously disconnect, and be dangerous powerless to what may occur in the work progress, can not in time report to the police for when danger occurring the rig operating personnel, so that take adequate measures, avoid accident to take place.
At present, the method for surveying underground object has a lot, and relatively more commonly used is electromagnetic induction method, microwave reflection and seismic wave method.Electromagnetic induction method is subjected to underground and influence stray EM field, the face of land easily, microwave reflection is under the bigger situation of soil moisture content, signal attenuation is serious, seismic wave method desired signal frequency is low, general exciting hammer or the little equivalent explosive of adopting comes the earthquake-wave-exciting signal, do not possess service condition when surveying with probing.
Summary of the invention
For avoiding the generation of the problems referred to above, the present invention bores guide strip or returns to draw together at horizontally-guided installs horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system additional between device and the drilling rod, adopt the surface wave Detection Techniques to survey the position of underground obstacle, and when facing a danger, report to the police to operating personnel.
In order to achieve the above object, the invention provides a kind of horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system, comprise acoustic signals excitation module that controller, circuit connect described controller with the detectable signal acquisition module, also comprise the high speed data transfer module that circuit is connected the power module of described controller and connects described controller, this high speed data transfer module links to each other with GDHS;
Described controller comprises circuit microprocessor linked MPU and logic control circuit FPGA (field programmable gate array);
Described acoustic signals excitation module comprises signal isolation that D/A modular converter, circuit that circuit connects described microprocessor MPU and logic control circuit FPGA be connected described D/A modular converter and is connected described signal with power amplifier module and circuit and isolates transmitting probe with power amplifier module;
Described detectable signal acquisition module comprises A/D modular converter, the circuit that circuit connects described microprocessor MPU and logic control circuit FPGA and is connected the signal conditioning circuit of described A/D modular converter and some receiving transducers that circuit connects described signal conditioning circuit;
When carrying out with the probing survey, controller receives instruction that GDHS sends and predetermined pumping signal by the high speed data transfer module, the analog signal of output certain frequency scope, certain amplitude shape after the conversion of D/A modular converter, after power amplification, drive transmitting probe emission acoustic signals, simultaneously, receiving transducer reception horizontally-guided bores back draws together device or near the soil body response signal of guide strip, after the sampling of A/D modular converter, packing compression back sends to GDHS by the high speed data transfer module and carries out analyzing and processing.
The present invention has the following advantages:
But the various pumping signals of 1 flexible configuration make things convenient for resolving of soil body response signal;
2, adopt the common mode amplifying circuit, suppress the interference of various spurious signals in the soil body.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Following according to Fig. 1, specify better embodiment of the present invention:
As shown in Figure 1, the invention provides a kind of horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system, comprise acoustic signals excitation module that controller, circuit connect described controller with the detectable signal acquisition module, also comprise the high speed data transfer module that circuit is connected the power module of described controller and connects described controller, this high speed data transfer module links to each other with GDHS;
Described controller comprises circuit microprocessor linked MPU (model: C8051F047) 4 and logic control circuit FPGA9;
Described acoustic signals excitation module comprises 12 D/A modular converters that circuit connects described microprocessor MPU 4 and logic control circuit FPGA9 (model: LTC2631) 3, the circuit signal that is connected described D/A modular converter 3 isolates and be connected described signal with power amplifier module 2 and circuit and isolate with the magnetostriction material in large sound wave emissions of power amplifier module 2 and pop one's head in 1;
Described detectable signal acquisition module comprises 12 A/D modular converters that circuit connects described microprocessor MPU 4 and logic control circuit FPGA9 (model: AD574) 8, circuit is connected the signal conditioning circuit 7 of described A/D modular converter 8 and two broadband wave detector receiving transducers 5,6 that circuit connects described signal conditioning circuit 7;
When carrying out with the probing survey, controller receives instruction that GDHS sends and predetermined pumping signal by the high speed data transfer module, the analog signal of output certain frequency scope, certain amplitude shape after the conversion of D/A modular converter, after power amplification, drive transmitting probe emission acoustic signals, simultaneously, receiving transducer reception horizontally-guided bores back draws together device or near the soil body response signal of guide strip, after the sampling of A/D modular converter, packing compression back sends to GDHS by the high speed data transfer module and carries out analyzing and processing.
Claims (4)
1. horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system, it is characterized in that, comprise acoustic signals excitation module that controller, circuit connect described controller with the detectable signal acquisition module, also comprise the high speed data transfer module that circuit is connected the power module of described controller and connects described controller, this high speed data transfer module links to each other with GDHS;
When carrying out with the probing survey, controller receives instruction that GDHS sends and predetermined pumping signal by the high speed data transfer module, the analog signal of output certain frequency scope, certain amplitude shape, after power amplification, drive acoustic signals excitation module emission acoustic signals, simultaneously, detectable signal acquisition module reception horizontally-guided bores back draws together device or near the soil body response signal of guide strip, sends to GDHS by the high speed data transfer module and carries out analyzing and processing.
2. described horizontal guiding drill while-drilling detection early warning acoustic wave excitation as claimed in claim 1 and signal processing system is characterized in that, described controller comprises circuit microprocessor linked MPU (4) and logic control circuit FPGA (9).
3. described horizontal guiding drill while-drilling detection early warning acoustic wave excitation as claimed in claim 1 and signal processing system, it is characterized in that described acoustic signals excitation module comprises signal that D/A modular converter (3), circuit that circuit connects described microprocessor MPU (4) and logic control circuit FPGA (9) be connected described D/A modular converter (3) and isolates and be connected with power amplifier module (2) and circuit that described signal is isolated and the transmitting probe (1) of power amplifier module (2).
4. described horizontal guiding drill while-drilling detection early warning acoustic wave excitation as claimed in claim 1 and signal processing system, it is characterized in that described detectable signal acquisition module comprises A/D modular converter (8), the circuit that circuit connects described microprocessor MPU (4) and logic control circuit FPGA (9) and is connected the signal conditioning circuit (7) of described A/D modular converter (8) and the receiving transducer (5,6) that circuit connects described signal conditioning circuit (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810042999A CN101676521A (en) | 2008-09-17 | 2008-09-17 | Horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810042999A CN101676521A (en) | 2008-09-17 | 2008-09-17 | Horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system |
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| CN101676521A true CN101676521A (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810042999A Pending CN101676521A (en) | 2008-09-17 | 2008-09-17 | Horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245726A (en) * | 2013-04-02 | 2013-08-14 | 华东理工大学 | Device and method for detecting material hydrogen damage through ultrasonic surface waves |
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2008
- 2008-09-17 CN CN200810042999A patent/CN101676521A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245726A (en) * | 2013-04-02 | 2013-08-14 | 华东理工大学 | Device and method for detecting material hydrogen damage through ultrasonic surface waves |
| CN103245726B (en) * | 2013-04-02 | 2015-05-27 | 华东理工大学 | Method for detecting material hydrogen damage through ultrasonic surface waves |
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Application publication date: 20100324 |