A pipeline detector tracking device

Abstract

The invention discloses a device for tracking a pipeline detector, and belongs to the field of pipeline maintenance. The device for tracking the pipeline detector includes a first magnetic sensor, a second magnetic sensor, an analog signal processing module, a digital signal processing module, a GPS transceiver module, a main control module, and a power supply management module. Omni-directional receiving of low frequency tracking signals sent by the pipeline detector can be realized by the two magnetic sensors which are orthogonally arranged, the analog signal processing module performs filtering processing , amplifying processing, de-noising processing and analog-to-digital conversion processing on the received signals, an effective receiving range of the signals is enlarged by automatic gain control, the digital signal processing module extracts signal features, an elapsed time and a position change can be determined based on a signal feature change, and the elapsed time and the position information of the pipeline detector can be acquired based on received time and position information of a GPS. The device for tracking the pipeline detector provided by the invention can overcome arrangement limitation of the conventional devices for tracking the pipeline detector, and the use ranges of the conventional tracking devices can be effectively expanded.

Description

technical field [0001] The invention belongs to the technical field of oil pipeline maintenance, and more particularly relates to a pipeline detector tracking device. Background technique [0002] In order to ensure the normal operation of oil pipelines and prevent pipelines from causing environmental disasters due to corrosion and other reasons, pipelines must be cleaned and inspected regularly. At present, in-pipeline detectors are mainly used for pipeline inspection. This type of detector operates in the pipeline, and uses technologies such as magnetic flux leakage testing to detect pipeline defects and pipeline characteristics. Since the pipeline is generally long (more than hundreds of kilometers), it is necessary to determine the position of the pipeline inspection equipment during the operation of the pipeline equipment as a reference point for the location of the pipeline defect. [0003] The pipeline tracking equipment in the prior art uses a single-axis magnetic s...

AI Technical Summary

Problems solved by technology

The tracking device uses a magnetic sensor to receive the tracer signal emitted by the pipeline detector, and confirms whether the detector has passed the set position by judging the characteristics of the signal change; this method is limited by the design of the sensor and the working principle of the equipment. It is necessary to limit its placement distance and placement angle to ensure the normal operation of the equipment; this defect brings practical difficulties to the detection and positioning of pipelines in deep buried pipelines, marine environments or complex terrain conditions

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