Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Semi-aviation transient electromagnetic conductivity-depth imaging method and device

A technology of transient electromagnetic and imaging methods, which is applied in the field of geophysical aviation electromagnetic exploration to achieve the effect of ensuring continuity

Pending Publication Date: 2021-10-22
CHINA RAILWAY ERYUAN ENG GRP CO LTD
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome that the semi-aerial transient electromagnetic method in the prior art cannot realize conductivity-depth imaging like the aerial transient electromagnetic method, and provide a semi-aerial transient electromagnetic conductivity-depth imaging method and equipment

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Semi-aviation transient electromagnetic conductivity-depth imaging method and device
  • Semi-aviation transient electromagnetic conductivity-depth imaging method and device
  • Semi-aviation transient electromagnetic conductivity-depth imaging method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A semi-aerotransient electromagnetic conductivity-depth imaging method such as figure 1 shown, including the following steps:

[0056] S1: Obtain the work area parameters of the target work area, perform forward modeling according to the work area parameters, and obtain the conductivity-electromagnetic response query database; the work area parameters include the length of the line source, the length of the measuring line, the receiving height of the coil, the distance between the measuring points, and current intensity;

[0057] S2: Collect the electromagnetic response data of each survey line, and preprocess the electromagnetic response data, and output the electromagnetic response value; the above preprocessing includes extracting the data points on the corresponding survey line, and selecting the secondary field truncation time before proceeding Superposition and channel extraction of secondary field signals (discretization of continuous signals, that is, signals o...

Embodiment 2

[0085] The present embodiment is the concrete application example of embodiment 1:

[0086] One, such as figure 2 As shown, the conductivity-electromagnetic response query database is established:

[0087] (1) Determine the parameters such as the length of the line source, the length of the measuring line, the receiving height of the coil, the distance between the measuring points and the current intensity according to the actual situation on site.

[0088] (2) Establish the conductivity-electromagnetic response query database according to the determined parameters, such as image 3 shown.

[0089] 2. SATEM-CDI imaging process:

[0090] (1) Single-point conductivity-depth SATEM-CDI imaging:

[0091] In order to verify the reliability of SATEM-CDI imaging, a three-layer H and K-type geological model and a four-layer geological body model for a single survey point were established in forward modeling. After the conductivity-electromagnetic response query database was establ...

Embodiment 3

[0097] Such as Figure 8 As shown, an electronic device includes at least one processor, and a memory communicated with the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor. At least one processor is executed, so that the at least one processor can execute the semi-aerial transient electromagnetic conductivity-depth imaging method described in the foregoing embodiments. The input and output interfaces may include a display, a keyboard, a mouse, and a USB interface for inputting and outputting data; the power supply is used for providing electric energy for electronic equipment.

[0098] Those skilled in the art can understand that all or part of the steps for implementing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned programs can be stored in computer-readable storage media. The steps of t...

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

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of geophysical aviation electromagnetic exploration, in particular to a semi-aviation transient electromagnetic conductivity-depth imaging method and device. According to the semi-aviation transient electromagnetic method, the electromagnetic response query database conforming to the actual situation is simulated in advance according to the actual situation, then the detected electromagnetic response data are searched in the database, repeated iterative calculation is not needed like inversion, rapid imaging can be conducted through the semi-aviation transient electromagnetic method, and a preliminary imaging result and an inversion initial model are rapidly obtained, preliminary geological inference data are provided for an area without geological data, an accurate geological model can be provided for an inversion process, and the defect of current unmanned aerial vehicle semi-aviation time domain electromagnetic detection data conductivity-depth rapid imaging is overcome.

Description

technical field [0001] The invention relates to the technical field of geophysical airborne electromagnetic exploration, in particular to a semi-airborne transient electromagnetic conductivity-depth imaging method and equipment. Background technique [0002] The semi-aerial electromagnetic method is a new type of aeronautical electromagnetic method. It is different from the helicopter or fixed-wing aircraft carrying the launch and observation system in the past. It uses the ground launch and the UAV carries the receiving sensor to receive the observation method in the air. Compared with the traditional airborne electromagnetic method (such as CN201410061917-fixed-wing airborne electromagnetic data double-component look-up table method combined with conductivity depth imaging method), the semi-airborne electromagnetic method has the advantages of higher precision, convenient implementation, lower cost, and good safety; At the same time, compared with the traditional terrestri...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/38G01V3/165G01V3/16G01V3/08G01V3/10
CPCG01V3/38G01V3/165G01V3/16G01V3/087G01V3/10
Inventor 尹小康曹云勇魏栋华赵思为张广泽冯涛刘康甄大勇徐正宣王哲威林之恒欧阳吉伊小娟李朝辉谢荣强张羽军王朋刘建国丁浩江宋章王彦东
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com