CN111610525A - Automatic pipeline distribution detection system and method based on sound wave transmission - Google Patents
Automatic pipeline distribution detection system and method based on sound wave transmission Download PDFInfo
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- CN111610525A CN111610525A CN202010464180.4A CN202010464180A CN111610525A CN 111610525 A CN111610525 A CN 111610525A CN 202010464180 A CN202010464180 A CN 202010464180A CN 111610525 A CN111610525 A CN 111610525A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010586 diagram Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000000644 propagated effect Effects 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000030808 detection of mechanical stimulus involved in sensory perception of sound Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/04—Systems determining presence of a target
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
- G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/02—Non-electrical signal transmission systems, e.g. optical systems using infrasonic, sonic or ultrasonic waves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Examining Or Testing Airtightness (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses an automatic pipeline distribution detection system and method based on sound wave transmission, wherein the system comprises transmitters and receivers, the transmitters are arranged in pipeline ports and used for generating sound waves and transmitting the sound waves in the pipeline ports, the receivers are arranged on the ground, at least three receivers are arranged on the ground, at least one receiver is not collinear with any other two receivers, the receivers are used for receiving the sound waves and determining the position of a pipeline according to the transmission direction and strength of the sound waves to generate a distribution diagram of the pipeline, and the receivers are also used for determining the positions of leaking points of the pipeline according to the strength of the sound waves.
Description
Technical Field
The invention belongs to the field of automatic pipeline distribution detection of sound wave transmission, and particularly relates to an automatic pipeline distribution detection system and method based on sound wave transmission.
Background
At present, the indoor pipeline map of many old and useless houses is lost, and the pipeline concrete position is difficult to confirm, and the pipeline is repaiied for a long time simultaneously, the easy leak source problem that appears, and the leak source is difficult to discover when using, causes liquid leakage in the pipeline, the wasting of resources. Therefore, if the leakage point is to be detected, the specific position of the indoor pipeline is determined first, and then the position of the pipeline leakage point is detected specifically. The current method for detecting the position of the pipeline comprises a method for transmitting and receiving high-frequency pulse electromagnetic waves, but the method is complex in equipment, and inaccurate in detection due to improper operation.
The existing leak point detection methods include 3 in-pipe detection methods for detecting the integrity of the pipe wall to realize leak detection and positioning, an out-pipe detection method for detecting the presence of a leaking substance directly to realize leak detection and positioning, and detection of the change of the flow state in the pipe after the leakage of the pipe.
In the existing 3 methods, the first method and the second method have high cost, and the other methods except the method based on the distributed optical fiber have no real-time detection capability; the most common negative pressure wave-based method of the third method has the defects of small leakage, slow leakage sensitivity, poor positioning accuracy, poor disturbance capability of an operation station, high false alarm rate and the like.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide an automatic pipe distribution detection system and method based on acoustic transmission.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides an automatic pipeline distribution detection system based on sound wave transmission, which comprises transmitters and receivers, wherein the transmitters are arranged in pipeline ports and used for generating sound waves and transmitting the sound waves in the pipeline ports, the receivers are arranged on the ground, at least three receivers are arranged on the ground, at least one receiver is not collinear with any two other receivers, the receivers are used for receiving the sound waves and determining the position of a pipeline according to the transmission direction and the intensity of the sound waves to generate a distribution diagram of the pipeline, and the receivers are also used for determining the positions of leaking points of the pipeline according to the intensity of the sound waves.
In the above scheme, the transmitter includes a transmitter power supply, a high-power oscillator acoustic wave transmitter, a power amplifier, and an MCU signal generator, the transmitter power supply is connected with the high-power oscillator acoustic wave transmitter, the power amplifier, and the MCU signal generator respectively for providing power, the MCU signal generator is connected with the high-power oscillator acoustic wave transmitter through the power amplifier, and the high-power oscillator acoustic wave transmitter is connected with the pipeline port for transmitting the generated acoustic wave.
In the scheme, the receiver comprises a receiver power supply, a control end, an internet of things module, a ZigBee network module terminal, a sound wave amplifier, a digital filtering converter, a display, a filter, a preposed sound wave amplifier and a sound pickup, wherein the sound pickup receives sound waves transmitted by a pipeline port through geology, the sound pickup is sequentially connected with the sound wave amplifier, the filter, the sound wave amplifier and the digital filtering converter, one path of the digital filtering converter is connected with the ZigBee network module terminal, the other path of the digital filtering converter is connected with the display, and the ZigBee network module terminal is connected with the control end through the internet of things module; and the power supply of the receiver is respectively connected with the sound pick-up, the display and the ZigBee network module terminal for supplying power.
The embodiment of the invention also provides an automatic pipeline distribution detection method based on sound wave transmission, wherein a transmitter generates sound waves and transmits the sound waves through a pipeline, at least three receivers receive the sound waves transmitted by the pipeline through geology and determine the position of the pipeline according to the transmission direction and the transmission intensity of the sound waves to generate a distribution diagram of the pipeline, and the position which is obviously higher than the intensity of the sound waves around is searched in the distribution diagram of the pipeline, and is the position of a leakage point of the pipeline.
In the above scheme, the transmitter generates sound waves and transmits the sound waves through a pipe, specifically, the transmitter is: the MCU signal generator generates an electric signal with adjustable frequency and amplitude, the electric signal is amplified through the power amplifier, and the high-power oscillator sound wave transmitter converts the amplified electric signal into sound waves.
In the above scheme, the at least three receivers receive the sound wave propagated by the pipeline through the geology and determine the position of the pipeline according to the propagation direction and intensity of the sound wave to generate the distribution map of the pipeline, specifically: the sound wave passes through the pipeline and transmits for the geology, the sound wave that the geology propagated is received to the adapter, and the sound wave continues to enlarge after leading sound wave amplifier is enlargied, the wave filter filtering, the sound wave amplifier is to the filtering, then carries out analog-to-digital conversion through digital filter converter and shows on the display, and the sound wave after the conversion of digital filter converter is received to zigBee network module terminal, confirms the position of pipeline according to the orientation module of self, the direction and the intensity of sound wave propagation, finally generates the distribution diagram of pipeline.
In the above scheme, the searching for a position obviously higher than the intensity of the ambient sound wave in the distribution map of the pipeline is a position of a leak point of the pipeline, and specifically includes: and searching a peak signal in the distribution diagram of the pipeline, wherein the position of the peak signal corresponding to the pipeline is the position of the leakage point of the pipeline.
Compared with the prior art, the method can transmit and receive sound waves, and determine the specific positions of the pipeline and the leakage points according to the direction and the strength of the received sound waves, so that the pipeline distribution diagram is automatically drawn, and the indoor ground is prevented from being damaged for detection.
Drawings
FIG. 1 is a block diagram of a transmitter in an automatic pipe distribution detection system based on acoustic transmission according to an embodiment of the present invention;
FIG. 2 is a connection block diagram of a receiver in an automatic pipe distribution detection system based on acoustic transmission according to an embodiment of the present invention;
fig. 3 is a flowchart of an automatic pipe distribution detection method based on acoustic transmission according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides an automatic pipeline distribution detection system based on sound wave transmission, which is shown in fig. 1 and 2 and comprises a transmitter 1 and receivers 2, wherein the transmitter 1 is arranged in a pipeline port 13 and used for generating sound waves and transmitting the sound waves in the pipeline port 13, the receivers 2 are arranged on the ground, at least three receivers 2 are arranged on the ground, at least one receiver is not collinear with any other two receivers 2, the receivers are used for receiving the sound waves and determining the position of a pipeline according to the direction and the strength of the sound waves to generate a distribution diagram of the pipeline, and the receivers are also used for determining the position of a leak point of the pipeline according to the strength of the sound waves.
The transmitter 1 comprises a transmitter power supply 11, a high-power oscillator sound wave transmitter 12, a power amplifier 14 and an MCU signal generator 15, wherein the transmitter power supply 11 is respectively connected with the high-power oscillator sound wave transmitter 12, the power amplifier 14 and the MCU signal generator 15 for supplying power, the MCU signal generator 15 is connected with the high-power oscillator sound wave transmitter 12 through the power amplifier 14, and the high-power oscillator sound wave transmitter 12 is connected with a pipeline port 13 for transmitting generated sound waves.
The transmitter power supply 11 is a direct current 24V power supply.
The receiver 2 comprises a receiver power supply 202, a control end 203, an internet of things module 204, a ZigBee network module terminal 205, a sound wave amplifier 206, a digital filtering converter 207, a display 208, a filter 209, a pre-sound wave amplifier 210 and a sound pickup 211, wherein the sound pickup 211 receives sound waves transmitted by a pipeline port 13 through geology 201, the sound pickup 211 is sequentially connected with the sound wave amplifier 210, the filter 209, the sound wave amplifier 206 and the digital filtering converter 207, one path of the digital filtering converter 207 is connected with the ZigBee network module terminal 205, the other path of the digital filtering converter 207 is connected with the display 208, and the ZigBee network module terminal 205 is connected with the control end 203 through the internet of things module 204; the receiver power supply 202 is respectively connected with the sound pickup 211, the display 208 and the ZigBee network module terminal 205 for supplying power.
The receiver power supply 202 is a dc 24V power supply.
The ZigBee network module terminal 205 has its own positioning module.
The sound wave is transmitted to the geology 201 through a pipeline, the sound pickup 211 receives the sound wave transmitted by the geology 201, the sound wave is amplified through the preposed sound wave amplifier 210, filtered by the filter 209, continuously amplified by the sound wave amplifier 206 after being filtered, and then displayed on the display 208 through the analog-to-digital conversion of the digital filter 207, the ZigBee network module terminal 205 receives the sound wave of the digital filter 207, the position of the pipeline is determined according to the positioning module of the ZigBee network module terminal 205, the propagation direction and the intensity of the sound wave, the ZigBee network module terminal 205 transmits the analysis result into the control end through the Internet of things module 204 and the software display end 203, the control end carries out initialization, display, data processing and distribution diagram generation on the transmitted result, the distribution diagram of the pipeline is displayed, the sound wave intensity at a leakage point is increased due to blocking, the distribution diagram generates a, thereby determining the location of the missing point.
The embodiment of the invention also provides an automatic pipeline distribution detection method based on sound wave transmission, which is realized by the following steps:
step 101: the transmitter 1 generates sound waves and propagates through the pipe;
specifically, the MCU signal generator generates an electrical signal with adjustable frequency and amplitude, and then the electrical signal is amplified by the power amplifier 14, and the high-power oscillator acoustic wave transmitter 12 converts the amplified electrical signal into an acoustic wave.
Step 102: at least three receivers 2 receive the sound waves propagated by the pipeline through the geological formation and determine the position of the pipeline according to the propagation direction and intensity of the sound waves to generate a distribution map of the pipeline;
specifically, sound waves are transmitted to the geology 201 through a pipeline, the sound pickup 211 receives the sound waves transmitted by the geology 201, the sound waves are amplified through the front sound wave amplifier 210, filtered through the filter 209 and continuously amplified through the sound wave amplifier 206, then analog-to-digital conversion is carried out through the digital filtering converter 207 and displayed on the display 208, the ZigBee network module terminal 205 receives the sound waves converted through the digital filtering converter 207, the position of the pipeline is determined according to the positioning module of the ZigBee network module terminal 205, the transmission direction and the transmission strength of the sound waves, and finally a distribution diagram of the pipeline is generated.
Step 103: and searching a position obviously higher than the intensity of the surrounding sound wave in the distribution diagram of the pipeline, wherein the position is the position of a leakage point of the pipeline.
Specifically, since the intensity of the sound wave at the leak point is increased due to obstruction, and the intensity of the sound wave is obviously different from the surrounding, a peak signal is searched in the distribution diagram of the pipeline, and the peak signal corresponds to the position of the pipeline, namely the position of the leak point of the pipeline is determined.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (7)
1. An automatic pipeline distribution detection system based on sound wave transmission is characterized by comprising transmitters and receivers, wherein the transmitters are arranged in pipeline ports and used for generating sound waves and transmitting the sound waves in the pipeline ports, the receivers are arranged on the ground, at least three receivers and at least one receiver are not collinear with any two other receivers, the receivers are used for receiving the sound waves and determining the position of the pipeline according to the direction and the strength of the sound waves to generate a distribution diagram of the pipeline, and the receivers are also used for determining the positions of leaking points of the pipeline according to the strength of the sound waves.
2. The system of claim 1, wherein the transmitter comprises a transmitter power supply, a high power oscillator acoustic transmitter, a power amplifier, and an MCU signal generator, the transmitter power supply is connected to the high power oscillator acoustic transmitter, the power amplifier, and the MCU signal generator respectively for providing power, the MCU signal generator is connected to the high power oscillator acoustic transmitter via the power amplifier, and the high power oscillator acoustic transmitter is connected to the pipeline port for transmitting the generated acoustic waves.
3. The automatic pipeline distribution detection system based on sound wave transmission according to claim 1 or 2, wherein the receiver comprises a receiver power supply, a control end, an internet of things module, a ZigBee network module terminal, a sound wave amplifier, a digital filtering converter, a display, a filter, a pre-sound wave amplifier and a pickup, the pickup receives sound waves propagated from a pipeline port through geology, the pickup is sequentially connected with the sound wave amplifier, the filter, the sound wave amplifier and the digital filtering converter, one path of the digital filtering converter is connected with the ZigBee network module terminal, the other path of the digital filtering converter is connected with the display, and the ZigBee network module terminal is connected with the control end through the internet of things module; and the power supply of the receiver is respectively connected with the sound pick-up, the display and the ZigBee network module terminal for supplying power.
4. An automatic pipeline distribution detection method based on sound wave transmission is characterized in that a transmitter generates sound waves and transmits the sound waves through a pipeline, at least three receivers receive the sound waves transmitted by the pipeline through geology and determine the position of the pipeline according to the transmission direction and the transmission intensity of the sound waves to generate a distribution diagram of the pipeline, and positions which are obviously higher than the transmission intensity of the surrounding sound waves are searched in the distribution diagram of the pipeline, wherein the positions are leakage point positions of the pipeline.
5. The method according to claim 4, wherein the transmitter generates sound waves and propagates through the pipe, specifically: the MCU signal generator generates an electric signal with adjustable frequency and amplitude, the electric signal is amplified through the power amplifier, and the high-power oscillator sound wave transmitter converts the amplified electric signal into sound waves.
6. The method according to claim 5, wherein the at least three receivers receive the sound waves propagated through the pipe through the geology and determine the position of the pipe according to the direction and intensity of the propagation of the sound waves to generate the distribution map of the pipe, specifically: the sound wave passes through the pipeline and transmits for the geology, the sound wave that the geology propagated is received to the adapter, and the sound wave continues to enlarge after leading sound wave amplifier is enlargied, the wave filter filtering, the sound wave amplifier is to the filtering, then carries out analog-to-digital conversion through digital filter converter and shows on the display, and the sound wave after the conversion of digital filter converter is received to zigBee network module terminal, confirms the position of pipeline according to the orientation module of self, the direction and the intensity of sound wave propagation, finally generates the distribution diagram of pipeline.
7. The method according to claim 6, wherein the location which is significantly higher than the intensity of the surrounding sound wave is found from the distribution map of the pipe, and is a leak point location of the pipe, specifically: and searching a peak signal in the distribution diagram of the pipeline, wherein the position of the peak signal corresponding to the pipeline is the position of the leakage point of the pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010464180.4A CN111610525A (en) | 2020-05-27 | 2020-05-27 | Automatic pipeline distribution detection system and method based on sound wave transmission |
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| CN202010464180.4A CN111610525A (en) | 2020-05-27 | 2020-05-27 | Automatic pipeline distribution detection system and method based on sound wave transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655484A (en) * | 2021-08-24 | 2021-11-16 | 湖北施德测绘科技有限公司 | Pipeline detection system and detection method |
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-
2020
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Patent Citations (6)
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| JPH11271169A (en) * | 1998-03-25 | 1999-10-05 | Osaka Gas Co Ltd | Pipe-inspecting device and method |
| JP2001280943A (en) * | 2000-03-29 | 2001-10-10 | Osaka Gas Co Ltd | Pipe inspecting method |
| WO2008071272A2 (en) * | 2006-12-15 | 2008-06-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and device for nondestructive test specimen examination by means of ultrasound along a test specimen surface |
| CN102156089A (en) * | 2011-01-18 | 2011-08-17 | 中国石油天然气股份有限公司 | Buried pipeline internal corrosion evaluation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113655484A (en) * | 2021-08-24 | 2021-11-16 | 湖北施德测绘科技有限公司 | Pipeline detection system and detection method |
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Application publication date: 20200901 |