CN104634376A - Non-insertion sound wave type pigging passing indicator monitoring device and monitoring method - Google Patents

Abstract

A non-insertion sound wave type pigging passing indicator monitoring device and a monitoring method belong to the technical field of automation. The sound wave sensor contacts the pipeline, the sound wave sensor is connected with the signal conversion circuit, the signal conversion circuit is connected with the pigging pipe and passes through the indicator host, and the pigging pipe is connected with the data remote transmission module through the AD converter, the data processing module, the display output module and the data remote transmission module of the indicator host. The technical effects are as follows: compared with a mechanical or electronic pigging passing indicator, the non-insertion sound wave pigging indicator has the advantages of being convenient to install, free of perforating a pipeline, free of installing a signal transmitter on a pipe cleaner and the like. The result is consistent with the monitoring result of mechanical and electronic pigging through the indicator, and the cost is low.

Description

A kind of non-intrusive sound wave type pigging is by indicator monitoring device and monitoring method

Technical field

The present invention relates to a kind of non-intrusive sound wave type pigging by indicator monitoring device and monitoring method, belong to technical field of automation.

Background technology

The monitoring of current pigging process mainly adopts mechanical type pigging to pass through indicator by indicator or electronic type pigging.Wherein, as shown in Figure 1, mechanical type pigging is rabbit by indicator 2(2, deletes) need, to pipeline 1 perforate, easily lost efficacy and caused makings to leak, and can only be arranged on ball cylinder out of the station; Electronic type pigging needs to install signal projector to after rabbit transformation by indicator, and needs to install signal receiver on the way at pigging, and cost is higher.

Summary of the invention

In order to overcome the deficiencies in the prior art, the invention provides a kind of non-intrusive sound wave type pigging by indicator monitoring device and monitoring method.

A kind of non-intrusive sound wave type pigging monitoring method, containing following steps;

Adopt the mode detecting the feature acoustic signals that rabbit operational process produces, realize the accurate measurements to rabbit operational process;

Main control chip is the core of whole test macro, is responsible for the functions such as acquisition channel selection, range swithching control, Data acquisition and storage, the control of liquid crystal acoustic-optic indicator, real time clock management and the instruction of transmission remote-transmission module;

After rabbit is accepted by sensor by the specific acoustic wave signal produced during pigging indicator post, after this is by indicator host analysis, judgement, record in memory, and realizes display at display screen; Can by GPRS net and control system contact;

More typical wave datum is preserved in a database, when Wave data to be checked is analyzed, the typical waveform data in itself and database is contrasted, find the most similar waveform.

Concrete steps are as follows;

Step (1), typical waveform is deposited personal data storehouse;

By measuring the various waveform sample of rabbit; Some representational waveform data sample are selected to deposit in personal data storehouse;

Step (2), waveform in waveform to be checked and database to be contrasted;

If sequence xi} (i=1 ..., N) and be actual survey waveform, N is the sampling length of data; Preserve in database waveform number sequence be classified as yi} (i=1 ..., N), be data sequence after normalized respectively; Employing step is as follows:

Step 1: calculate { xi} and the { Euclidean distance of yi};

$D_m=\sqrt[2]{\underset{i=0}{\overset{N}{\mathrm{\Σ}}}{(\mathrm{xi}-\mathrm{yi})}^2}$

Step 2: find minimum D_m, judge.

A kind of non-intrusive sound wave type pigging is by indicator monitoring device, sonic sensor contact pipeline, sonic sensor connection signal change-over circuit, signaling conversion circuit connects pigging by indicator main frame, and pigging is interconnected by the AD converter of indicator main frame, data processing module, display translation module and data remote transmitting module.

A kind of non-intrusive sound wave type pigging is by indicator monitoring device, sonic sensor contact pipeline, sonic sensor connects DSP, DSP connects local display unit and GPRS communication unit, and GPRS communication unit is sent by signal and is connected with GPRS data center.

Invention effect: non-intrusive sound wave type pigging indicator and mechanical type or electronic type pigging, by compared with indicator, have: easy for installation, do not need pipeline tapping, need not install the advantages such as signal transmitter on rabbit.Consistent by indicator monitoring result with mechanical type and electronic type pigging, and with low cost.

Advantage of the present invention utilizes the acoustic characteristic signal produced in rabbit operational process, has (1) easy for installation by indicator; (2) do not need to carry out perforate to pipeline; (3) on rabbit, the features such as signal transmitter need be installed.

Accompanying drawing explanation

When considered in conjunction with the accompanying drawings, by referring to detailed description below, more completely can understand the present invention better and easily learn wherein many adjoint advantages, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention, wherein:

Fig. 1 is structural representation of the present invention.

Fig. 2 is structural representation of the present invention.

Below in conjunction with drawings and Examples, the present invention is further described.

Embodiment

Obviously, the many modifications and variations that those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.

Embodiment 1: as shown in Figure 1 and Figure 2, a kind of non-intrusive sound wave type pigging is by indicator monitoring device, sonic sensor 3 contacts pipeline 1, sonic sensor 3 connection signal change-over circuit 4, signaling conversion circuit 4 connects pigging by indicator main frame, and pigging is interconnected by the AD converter 8 of indicator main frame, data processing module 5, display translation module 7 and data remote transmitting module.

A kind of non-intrusive sound wave type pigging is by indicator monitoring device, sonic sensor 3 contacts pipeline 1, sonic sensor 3 connects DSP 9, DSP 9 connects local display unit 10 and GPRS communication unit 11, GPRS communication unit 11 is connected with GPRS data center 12 by signal transmission.

A kind of non-intrusive sound wave type pigging monitoring method, containing following steps;

More typical wave datum is preserved in a database, when Wave data to be checked is analyzed, the typical waveform data in itself and database is contrasted, find the most similar waveform.

Detailed process has following two parts.

(1) typical waveform is deposited personal data storehouse;

By measuring the various waveform sample of rabbit.Some representational waveform data sample are selected to deposit in personal data storehouse

(2) waveform in waveform to be checked and database is contrasted;

If sequence xi} (i=1 ..., N) and be actual survey waveform, N is the sampling length of data; Preserve in database waveform number sequence be classified as yi} (i=1 ..., N), be data sequence after normalized respectively; Step is as follows:

Step 1: calculate { xi} and the { Euclidean distance of yi}.

$D_m=\sqrt[2]{\underset{i=0}{\overset{N}{\mathrm{\Σ}}}{(\mathrm{xi}-\mathrm{yi})}^2}$

Step 2: find minimum D_m, judge.

As mentioned above, embodiments of the invention are explained, but as long as do not depart from inventive point of the present invention in fact and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation is also all included within protection scope of the present invention.

Claims (4)

1. a non-intrusive sound wave type pigging monitoring method, is characterized in that containing following steps;

Adopt the mode detecting the feature acoustic signals that rabbit operational process produces, realize the accurate measurements to rabbit operational process;

Main control chip is the core of whole test macro, is responsible for the functions such as acquisition channel selection, range swithching control, Data acquisition and storage, the control of liquid crystal acoustic-optic indicator, real time clock management and the instruction of transmission remote-transmission module;

After rabbit is accepted by sensor by the specific acoustic wave signal produced during pigging indicator post, after this is by indicator host analysis, judgement, record in memory, and realizes display at display screen; Can by GPRS net and control system contact;

More typical wave datum is preserved in a database, when Wave data to be checked is analyzed, the typical waveform data in itself and database is contrasted, find the most similar waveform.

2. a kind of non-intrusive sound wave type pigging monitoring method according to claim 1, is characterized in that concrete steps are as follows;

Step (1), typical waveform is deposited personal data storehouse;

By measuring the various waveform sample of rabbit; Some representational waveform data sample are selected to deposit in personal data storehouse;

Step (2), waveform in waveform to be checked and database to be contrasted;

If sequence xi} (i=1 ..., N) and be actual survey waveform, N is the sampling length of data; Preserve in database waveform number sequence be classified as yi} (i=1 ..., N), be data sequence after normalized respectively; Employing step is as follows:

Step 1: calculate { xi} and the { Euclidean distance of yi};

$D_m=\sqrt[2]{\underset{i=0}{\overset{N}{\mathrm{\Σ}}}{(\mathrm{xi}-\mathrm{yi})}^2}$

Step 2: find minimum D_m, judge.

3. a non-intrusive sound wave type pigging passes through indicator, it is characterized in that sonic sensor connection signal change-over circuit, signaling conversion circuit connects pigging by indicator main frame, and pigging is interconnected by the AD converter of indicator main frame, data processing module, display translation module and data remote transmitting module.

4. a non-intrusive sound wave type pigging pick-up unit, it is characterized in that sonic sensor contact pipeline, sonic sensor connects DSP, DSP connects local display unit and GPRS communication unit, and GPRS communication unit is sent by signal and is connected with GPRS data center.