Control system and operation method of transient electromagnetic signal acquisition instrument of handheld pseudo random

A transient electromagnetic and signal acquisition technology, which is applied in electric/magnetic exploration, radio wave measurement systems, instruments, etc., can solve the problems of large volume, complex operation, and inability to realize data calculation and processing at the same time, achieving small size and low cost. Inexpensive, the effect of improving computing power

Inactive Publication Date: 2013-09-18
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] One of the purposes of the present invention is to provide a compact, easy to operate, low power consumption, data processing equipment that solves the problems of existing electromagnetic prospecting instruments that are large in size and complex in operation, and cannot realize data calculation and processing at the same time after data collection. The control system of the fast hand-held pseudo-random transient electromagnetic signal acquisition instrument can simultaneously realize the acquisition of frequency-domain pseudo-random electromagnetic signals and time-domain transient signals on one electromagnetic signal acquisition instrument

Method used

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  • Control system and operation method of transient electromagnetic signal acquisition instrument of handheld pseudo random
  • Control system and operation method of transient electromagnetic signal acquisition instrument of handheld pseudo random

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Embodiment 1

[0037] Embodiment 1: the control system of a kind of hand-held pseudo-random transient electromagnetic signal acquisition instrument of the present invention, its structure is as follows figure 1 As shown, it includes a central control and processing module, a signal conversion module, a data storage module, a synchronization module, and a touch LCD module. The central control and processing module is bidirectionally electrically connected to the signal conversion module, the data storage module and the touch liquid crystal display module, and the central control and processing module is also electrically connected to the synchronization module.

[0038] Said central control and processing module contains Field Programmable Gate Array FPGA device and its peripheral configuration chips and program memory. Described Field Programmable Gate Array FPGA device model is chosen as EP3C40Q240 chip, and its internal processor structure sees figure 2 . The interior of field programma...

Embodiment 2

[0051] Embodiment 2: the control system of a kind of hand-held pseudo-random transient electromagnetic signal acquisition instrument of the present invention, its structure is as follows figure 1 As shown, it includes a central control and processing module, a signal conversion module, a data storage module, a synchronization module, and a touch LCD module. The difference is that in the central control and processing module, the field programmable gate array device FPGA device chip model is selected as EP4SGX230, and the embedded soft-core processor adopts ARM Cortex soft-core processor; the internal peripheral control logic unit is written in VHDL language, The embedded digital signal processor DSP adopts a hard-core DSP processor, and the synchronization module adopts the COMPASS module of the Beidou satellite navigation system. The touch liquid crystal display module adopts an industrial resistive touch screen.

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Abstract

The invention relates to a control system and an operation method of a transient electromagnetic signal acquisition instrument of a handheld pseudo random. The control system comprises a central control and processing module, a signal conversion module, a data memory module, a synchronous module and a touch liquid crystal display module, wherein the core of the central control and processing module is an FPGA (Field-Programmable Gate Array) and is used for completing system control and data processing; the signal conversion module is used for converting a received analog signal to a digital signal; the data memory module is used for recording acquired electromagnetic data and a computed result; the synchronous module is used for synchronizing the acquisition instrument and a transmitter; and the touch liquid crystal display module is used for realizing the work mode of the system and the set of parameters and displaying the acquired data and the computed result. The control system is installed on the handheld electromagnetic signal acquisition instrument and has the advantages of small size, high data processing speed and low power consumption, the operation method of the system is simple and convenient, the acquisition of electromagnetic signals of the pseudo random and transient electromagnetic signals can be realized, and various exploration parameters can be obtained on site.

Description

technical field [0001] The invention relates to a control system and an operation method of a hand-held pseudo-random transient electromagnetic signal acquisition instrument, belonging to the technical field of geophysical detection instruments. Background technique [0002] Due to its good practicability and high efficiency, electromagnetic detectors have been widely used in the exploration of oil and gas and coalfield geological structures, the search for metal and non-metallic minerals, hydrological engineering geology, etc., but the existing electromagnetic exploration instruments Due to the large size and complex operation, data calculation and processing cannot be realized at the same time after data collection, so the application is limited, such as the prediction of small-scale geological disasters, the investigation of urban environment and building foundations, and the investigation of underground pipeline laying. , it is necessary to develop a control system of a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/08
Inventor 王广君张怀曾旭明冀连杰鲍卫岗张鹏锴李幼军汪刚
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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