MEMS (Micro Electro Mechanical System) inertial measurement unit-based pipeline surveying and mapping and defect positioning device and pipeline surveying and mapping and defect positioning method thereof

A technology of inertial measurement unit and measurement unit, which is applied in the field of pipeline surveying and mapping, and can solve the problems of pipeline surveying and mapping defect positioning, no fixed-point magnetic mark, etc.
CN104235618AActive Publication Date: 2014-12-24HARBIN ENG UNIV
5 Cites 62 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN ENG UNIV
Publication Date
2014-12-24

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the technical field of pipeline surveying and mapping, and in particular relates to an MEMS (Micro Electro Mechanical System) inertial measurement unit-based pipeline surveying and mapping and defect positioning device and a pipeline surveying and mapping and defect positioning method thereof. The MEMS inertial measurement unit-based pipeline surveying and mapping and defect positioning device comprises a measurement unit, a correction unit, a defect detection unit, a power supply unit and a data processing and memory unit. Compared with the conventional inventions and papers and the like, the MEMS inertial measurement unit is lower in cost, and has a wider pipe diameter application range of being 60 mm at minimum besides the autonomy. The MEMS inertial measurement unit is combined with an odometer, a flux-gate magnetometer and an ultrasonic detection device. The pipeline surveying and mapping problem without laying a fixed-point magnetic scale is solved, meanwhile, the information on a defect position is detected and marked, and convenience is provided for the maintenance and strengthening of pipeline defects. An odometer wheel is also connected with a power generation device, so that the problems caused by external power supply are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention belongs to the technical field of pipeline surveying and mapping, and specifically relates to a pipeline surveying and defect positioning device based on a MEMS inertial measurement unit and a pipeline surveying and defect positioning method thereof. Background technique

[0002] According to the United States Central Intelligence Agency’s "World Record Yearbook" statistics, in 2013 there were 3,559,186 kilometers of pipelines in operation worldwide. If the equatorial circumference is 4,075.04 kilometers, the oil and gas pipelines can circle the earth 88 times. As of the first half of 2012, the total length of national oil and gas pipelines reached 93,000 kilometers, while the total length of my country's oil and gas pipelines in 2004 was less than 30,000 kilometers. It is estimated that by 2015, the total length of my country's oil and gas pipelines will reach about 150,000 kilometers. The oil and gas pipeline network is the main artery of e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More