CN211955822U - Portable buried pipe cable route detection system - Google Patents
Portable buried pipe cable route detection system Download PDFInfo
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- CN211955822U CN211955822U CN201921891586.XU CN201921891586U CN211955822U CN 211955822 U CN211955822 U CN 211955822U CN 201921891586 U CN201921891586 U CN 201921891586U CN 211955822 U CN211955822 U CN 211955822U
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Abstract
The utility model discloses a portable buried pipe cable route detection system, which comprises a fish hanging device, a sonar electronic box, a display and control unit, a position and attitude sensor and a hanging frame, wherein the hanging frame is used for fixedly installing the fish hanging device on the side board of an operation ship; the internal transmitting transducer array of the fish hanging transmits low-frequency sound wave signals under the driving of the sonar electronic box; receiving echo signals of the buried pipe cable by a receiving transducer array inside the fish hanging device, and inputting the signals into the sonar electronic box; the sonar electronic box finishes the transmission, receiving, processing and transmission of low-frequency acoustic signals and outputs buried pipe cable images to the display and control unit; the display control unit completes system control of the detection system, sound image display for receiving the images of the buried pipe cables and pipe cable position positioning; the detection system is hung on the side of the ship through the hanging frame, so that a large A frame or a gantry crane is not needed, and the detection system is lighter and more portable; the attenuation of the signal in water is effectively prevented; by continuous large-scale imaging, the efficiency of detection is made higher.
Description
Technical Field
The utility model relates to a submarine pipeline cable investigation field especially relates to submarine buried pipeline cable route detection system.
Background
With the continuous development and utilization of ocean oil and gas resources and wind power resources, the number of submarine pipelines and cables laid in the sea area is increased, and a large number of new pipe cables are laid on the seabed every year. In coastal sea areas, in order to avoid damage to the umbilical by the anchor chains of the ship, the umbilical is usually laid in a buried manner. Before the new pipe cable is laid, other buried pipe cable positions and pipe cable routes of the pipe cable passing through the sea area need to be investigated so as to reasonably determine the laying position and the construction scheme of the new pipe cable.
The existing sonar adopts a towed body towing mode to operate, and the towed body is large in size and heavy in weight. High demands on the work vessel during work: it is necessary for the vessel to have a large a-frame or gantry crane and to have a large deck operating space. When the towed body is applied to buried pipe cable detection, the towed body is connected with a ship body through the towed cable, so that the accurate position of the towed body is difficult to obtain, and the positioning accuracy of the buried pipe cable is directly influenced.
SUMMERY OF THE UTILITY MODEL
Therefore an object of the utility model is to provide a lightweight buries tube cable detection system to the realization is swept survey and accurate positioning to the high efficiency of burying the tube cable, and can conveniently be adapted to adorn in different ships.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a portable buried pipe cable route detection system is characterized by comprising a fish hanging device, a hanging rod, a sonar electronic box, a display control unit and a position attitude sensor,
the fish hanging device is an acoustic-electric conversion device and comprises a transmitting transducer array and a receiving transducer array;
the transmitting transducer array converts a high-voltage electric signal into a low-frequency sound wave signal, and the high-voltage electric signal is from the sonar electronic box;
the receiving transducer array receives a low-frequency sound wave signal echo and converts the echo into an analog electric signal, and the analog electric signal is input into the sonar electronic box;
the hanging rod fixes the fish on the side of the working ship;
the sonar electronic box generates the high-voltage electric signal, receives the analog electric signal, acquires channel data and data of the position attitude sensor, performs fusion processing on the channel data and the sensor data to obtain a submarine buried pipe cable acoustic image, and outputs the submarine buried pipe cable acoustic image to the display control unit;
the display control unit completes the control of the system, the sound image display and the pipe cable target positioning;
the position and posture sensor finishes the position positioning and posture acquisition of the system and outputs the position and posture data of the system.
Furthermore, the transducer array, the sonar electronic box, the display control unit and the position attitude sensor perform continuous large-range imaging on the buried pipe cable area to obtain continuous position information of the buried pipe cable.
Further, the transmitting transducer array and the receiving transducer array are arranged separately.
Further, the transmitting transducer array is in the same plane as the receiving transducer array.
Furthermore, the receiving line array is axially horizontal and parallel to the bow direction of the ship, the receiving line array front surface for hanging the fish is obliquely and downwards arranged, and the front surface and the horizontal plane form an inclined included angle.
Further, the transmitting transducer array transmits low-frequency sound waves to the sea floor at the inclined included angle, and the receiving transducer array receives the sea floor and target echoes at the inclined included angle.
Further, signals of a transmitting transducer array and a receiving transducer array are accessed to the sonar electronic box through a watertight cable.
Furthermore, the sonar electronic box comprises a power supply module, a transmitting module, a receiving module, a processing module and a transmission module, wherein the high-voltage driving circuit generates a high-voltage electric signal to drive the transmitting transducer array; the signal acquisition circuit completes the amplification, filtering and A/D conversion of signals of each channel of the receiving transducer array to form array element domain data; and the signal processing circuit performs synthetic aperture processing on the formed array element domain data to generate a water bottom acoustic image.
Furthermore, the display control unit is provided with sonar display control software, and the display control software can complete the functions of system parameter downloading, system start-stop control, sound image display and cable target management.
Further, the transmit transducer and receive transducer have frequencies less than 20 kHz.
By adopting the technical scheme, the method has the following technical effects:
1. because the detection system is hung on the side of the ship through the hanging frame, a large-scale A frame or a gantry crane is not needed, the operation is more convenient, and because the detection system is directly arranged on the side of the ship, a towed body is not needed, the position positioning is accurate, and the detected cable information is more accurate.
2. Because the detection system adopts the low-frequency signal for detection, the attenuation of the signal in water is effectively prevented; by continuous large-scale imaging, the detected information is more accurate.
3. The transmitting array and the receiving array are obliquely arranged along the outer side of the ship, and the sound wave signals obliquely downwards irradiate the seabed and the buried pipe cable from the transmitting array and the receiving array, so that the effective detection range is larger, and the detected information is more comprehensive.
4. The imaging comprehensiveness and accuracy are effectively guaranteed through the arrangement of the transmitting array and the receiving array, the arrangement of the receiving arrays which are linearly arranged and the relation between the axial direction of the receiving linear array and the ship heading.
Drawings
FIG. 1 is a block diagram of a portable buried umbilical detection system.
Fig. 2 transducer array mounting arrangement one (side view).
Fig. 3 transducer array mounting layout two (end view).
Fig. 4 is a block diagram of the internal circuit of the sonar electronic box.
A transducer array 10, a sonar electronic box 20, a display control unit 30, a position and attitude sensor 40, a hanger 101, a work vessel 600,
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The method is described in more detail below with reference to the accompanying drawings and the embodiments.
According to fig. 1, the utility model discloses a lightweight buried pipe cable detecting system comprises string fish 10, sonar electronic box 20, apparent accuse unit 30, position attitude sensor 40 and peg 50. The fish 10 finishes the transmission and the reception of the acoustic signals; the sonar electronic box 20 completes the driving, acquisition, processing and transmission of low-frequency acoustic signals and outputs the buried pipe cable acoustic image to the display and control unit 30; the display and control unit 30 completes system control and buried pipe cable acoustic diagram display and positioning; the position and posture sensor 40 finishes the position positioning and posture acquisition of the fish hanging.
The fish 10 comprises a transmitting transducer 101 and a multi-channel receiving transducer 102, and the receiving transducer and the transmitting transducer form a linear array, as shown in fig. 2.
The portable buried umbilical detection system of the present invention is shown in fig. 2 and 3 for the installation layout of each part on the working vessel.
The fish hanging device 10 is arranged on the hanging frame 50 through a flange, and the hanging rod 50 is rigidly fixed with the side board of the ship 600. After the fish hanging device 10 is installed, the fish is located below the water surface, the linear array is axially horizontal, and the axial direction of the linear array is parallel to the bow direction of the ship 600. The included angle between the basal array surface of the fish 10 and the horizontal is 50 degrees, the vertical wave beam of the transmitting transducer 101 slantly irradiates the water bottom and the buried pipe cable to generate corresponding acoustic echo, and the corresponding acoustic echo returns to the receiving transducer 102.
The display control unit 30 and the sonar electronic box 20 are arranged on the deck or in the cabin of the operation ship, and the display control unit can complete the functions of system parameter downloading, system start-stop control, sound image display and cable target management. The display control unit can input the position offset of the sensor and the transducer array, so that the position and the posture of the array can be accurately obtained, and the accurate position of the buried target can be positioned.
The position and posture sensor 40 is fixedly arranged above the hanging rod and used for measuring the position and the posture of the center of the hung fish.
Because the detection system is hung on the side of the ship through the hanging frame, a large-scale A frame or a gantry crane is not needed, the operation is more convenient, and because the detection system is directly arranged on the side of the ship, a towed body is not needed, the position positioning is accurate, and the detected cable information is more accurate.
The utility model provides a lightweight buries pipe cable detecting system, only the transducer array is laid in aqueous, transducer array and operation ship rigid connection. When the system works, the operation is simple, and the arrangement is convenient; and the A frame is not needed, and the requirement on the operation ship is low.
The transmission and reception signals of the fish 10 are led into the cabin of the process vessel through watertight cables, connected to the sonar electronic box 20. The data of the position and orientation sensor 40 is connected to the sonar electronic box 20 through a data line. The display control unit 30 is connected with the sonar electronic box 20 through a data line.
The sonar electronic box 20 includes: the high-voltage driving circuit 201, the signal acquisition circuit 202, the power conversion circuit 203, the signal processing circuit 204 and the data transmission circuit 205. The power conversion circuit 203 completes voltage conversion and supplies power to all circuits in the sonar electronic box 20; the high-voltage driving circuit 201 generates a high-voltage electric signal and outputs the high-voltage electric signal to the transmitting transducer array; the signal acquisition circuit 202 amplifies, filters and A/D converts the channel signals of the receiving transducer array 102 to form array element domain data; the signal processing circuit 204 performs synthetic aperture processing on the array element domain data to generate a water bottom acoustic map; the data transmission circuit 205 completes data exchange and transmission of the signal acquisition circuit 202, the signal processing circuit 204, the position and orientation sensor 40 and the display control unit 30.
The sound wave frequency emitted by the transmitting transducer array 101 and the sound wave frequency received by the receiving transducer array 102 are both sound signals below 20kHz, so that the signals are effectively prevented from being attenuated in water, the sound waves can penetrate through the seabed, and buried targets under the seabed can be effectively detected.
During detection, the ship 600 navigates at a constant speed according to a straight line, and the portable buried pipe cable detection system transmits sound waves to the bottom of the water and collects echo signals according to a fixed period. By receiving signals from the receiving transducer 102 at different positions of the ship and performing synthetic aperture processing, the portable buried cable detection system can obtain a sound image of the water bottom and the buried cable in real time and display the sound image on the display and control software of the display and control unit 30 in a waterfall image manner.
After discovering to bury the umbilical, according to the trend of burying the umbilical on the waterfall plot, adjust the navigation direction of ship 600, make ship 600 navigation direction and bury the umbilical and move towards unanimously, thereby realize the utility model discloses a lightweight buries umbilical detection system and surveys the tracking of burying the umbilical.
The display control software of the display control unit 30 has a dotting and positioning function, so that the position information of the buried pipe cable can be output, and the buried pipe cable can be positioned.
The utility model discloses a synthetic aperture technique is applicable to the imaging technology who is used for sonar under water more, and this technique utilizes the removal of small aperture array, and the imaging effect of the large aperture array of length ten times is imitated to the virtual length to obtain high resolution ratio in the position. Since the synthetic aperture sonar has imaging resolution independent of the acoustic signal frequency, high imaging resolution can be obtained with lower frequencies. The low-frequency underwater acoustic signals can penetrate through the seabed, so that the low-frequency synthetic aperture sonar can perform large scanning width imaging on the buried pipe cable, and the data detected by the pipe cable has high efficiency and accuracy.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A portable buried pipe cable route detection system is characterized by comprising a fish hanging device, a hanging rod, a sonar electronic box, a display control unit and a position attitude sensor,
the fish hanging device is an acoustic-electric conversion device and comprises a transmitting transducer array and a receiving transducer array;
the transmitting transducer array converts a high-voltage electric signal into a low-frequency sound wave signal, and the high-voltage electric signal is from the sonar electronic box;
the receiving transducer array receives a low-frequency sound wave signal echo and converts the echo into an analog electric signal, and the analog electric signal is input into the sonar electronic box;
the hanging rod fixes the fish on the side of the working ship;
the sonar electronic box generates the high-voltage electric signal, receives the analog electric signal, acquires channel data and data of the position attitude sensor, performs fusion processing on the channel data and the sensor data to obtain a submarine buried pipe cable acoustic image, and outputs the submarine buried pipe cable acoustic image to the display control unit;
the display control unit completes the control of the system, the sound image display and the pipe cable target positioning;
the position and posture sensor finishes the position positioning and posture acquisition of the system and outputs the position and posture data of the system.
2. The buried cable routing detection system of claim 1, wherein the transmitting transducer array, the receiving transducer array, the sonar electronic box, the display control unit and the position attitude sensor perform continuous wide-range imaging on the buried cable area to obtain continuous position information of the buried cable.
3. The buried umbilical routing probe system of claim 1, wherein the transmit transducer and receive transducer are arranged in a split configuration.
4. The buried umbilical routing probe system of claim 1, wherein the transmit transducer array is in the same plane as the receive transducer array.
5. The buried umbilical routing probe system of claim 1, wherein the receive transducer array and the transmit transducer array form a linear array, the array of receive lines is axially horizontal and parallel to the heading of the vessel, the array of receive lines for the fish is oriented with its front surface inclined downward, and the front surface is at an inclined angle to the horizontal.
6. The buried umbilical routing probe system of claim 5, wherein the transmit transducer transmits low frequency sound waves toward the seafloor at the oblique angle and the receive transducer receives seafloor and target echoes at the oblique angle.
7. The buried pipe cable route detection system of claim 3, wherein signals of a transmitting transducer and a receiving transducer are interfaced to the sonar electronics box by watertight cables.
8. The buried pipe cable route detection system of claim 1, wherein the sonar electronic box comprises a high voltage driving circuit, a signal acquisition circuit, a power conversion circuit, a signal processing circuit and a data transmission circuit, wherein the power conversion circuit performs voltage conversion to supply power to all circuits in the sonar electronic box; the high-voltage driving circuit generates a high-voltage electric signal and outputs the high-voltage electric signal to the transmitting transducer array; the signal acquisition circuit amplifies, filters and A/D converts the channel signals of the receiving transducer array to form array element domain data; and the signal processing circuit performs synthetic aperture processing on the array element domain data to generate a water bottom sonogram.
9. The buried umbilical routing probe system of claim 1, wherein the transmit transducer and receive transducer are at frequencies less than 20 kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891586.XU CN211955822U (en) | 2019-11-05 | 2019-11-05 | Portable buried pipe cable route detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921891586.XU CN211955822U (en) | 2019-11-05 | 2019-11-05 | Portable buried pipe cable route detection system |
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| Publication Number | Publication Date |
|---|---|
| CN211955822U true CN211955822U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921891586.XU Active CN211955822U (en) | 2019-11-05 | 2019-11-05 | Portable buried pipe cable route detection system |
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| Country | Link |
|---|---|
| CN (1) | CN211955822U (en) |
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2019
- 2019-11-05 CN CN201921891586.XU patent/CN211955822U/en active Active
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