scholarly journals Development of high-precision distributed wireless microseismic acquisition stations

2018 ◽  
Author(s):  
Shuaiqing Qiao ◽  
Hongmei Duan ◽  
Qisheng Zhang ◽  
Qimao Zhang ◽  
Shuhan Li ◽  
...  
Keyword(s):  
Data Acquisition ◽  
High Precision ◽  
Oil And Gas ◽  
Data Communication ◽  
Microseismic Monitoring ◽  
Acquisition System ◽  
Seismic Exploration ◽  
High Signal ◽  
Control Board ◽  
High Data

Abstract. In recent years, owing to the shortage of oil and gas resources and increased difficulty in mining, traditional (wired) microseismic monitoring equipment has been unable to meet the needs of energy exploitation. Therefore, it is necessary to develop new high-precision seismic exploration and data acquisition systems. In this study, we combined advance acquisition systems with wireless technology to develop a new wireless microseismic acquisition system. The hardware circuit of the acquisition system mainly included a data acquisition board and a main control board. High-precision analog-to-digital conversion and digital filtering technologies were used to provide data with high signal-to-noise ratios, resolution, and fidelity to the acquisition stations. Key technologies were integrated into the ARM of the main control board. Reliable GPS technology was employed to realize synchronous acquisitions among various acquisition stations, and WIFI technology was used to achieve wireless data communication between acquisition stations and the central station, thus improving the data transmission speed and accuracy. After conducting a series of evaluation tests, it was found that the system was stable, convenient to use, and had high data accuracy, therefore providing significant support for the solution to problems encountered in current oil and gas exploration processes, such as the complicated environment and inconvenient construction.

scholarly journals Development of high-precision distributed wireless microseismic acquisition stations

2018 ◽  
Vol 7 (3) ◽  
pp. 253-263 ◽  
Author(s):  
Shuaiqing Qiao ◽  
Hongmei Duan ◽  
Qisheng Zhang ◽  
Qimao Zhang ◽  
Shuhan Li ◽  
...  
Keyword(s):  
Data Acquisition ◽  
High Precision ◽  
Oil And Gas ◽  
Data Communication ◽  
Microseismic Monitoring ◽  
Acquisition System ◽  
Seismic Exploration ◽  
High Signal ◽  
Control Board ◽  
High Data

Abstract. In recent years, owing to the shortage of oil and gas resources and increasing difficulty in mining, traditional (wired) microseismic monitoring equipment has been unable to meet the needs of energy exploitation. Therefore, it is necessary to develop new high-precision seismic exploration and data acquisition systems. In this study, we combined advanced acquisition systems with wireless technology to develop a new wireless microseismic acquisition system. The hardware circuit of the acquisition system mainly includes a data acquisition board and a main control board. High-precision analog-to-digital conversion and digital filtering technologies are used to provide data with high signal-to-noise ratios, resolution, and fidelity to the acquisition stations. Key technologies were integrated into the ARM (Advanced RISC Machines) of the main control board: reliable GPS technology was employed to realize synchronous acquisitions among various acquisition stations, and WIFI technology was used to achieve wireless data communication between acquisition stations and the central station, thus improving the data transmission speed and accuracy. After conducting a series of evaluation tests, it was found that the system was stable, convenient to use, and had high data accuracy, therefore providing significant support for the solution to problems encountered in current oil and gas exploration processes, such as the complicated environment and inconvenient construction.

scholarly journals Development of a distributed hybrid seismic–electrical data acquisition system based on the Narrowband Internet of Things (NB-IoT) technology

2019 ◽  
Vol 8 (2) ◽  
pp. 177-186 ◽  
Author(s):  
Wenhao Li ◽  
Qisheng Zhang ◽  
Qimao Zhang ◽  
Feng Guo ◽  
Shuaiqing Qiao ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Data Acquisition ◽  
High Precision ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Geophysical Prospecting ◽  
Long Distance ◽  
Data Acquisition Board ◽  
Acquisition Processes ◽  
Electrical Data

Abstract. The ambiguity of geophysical inversions, which is based on a single geophysical method, is a long-standing problem in geophysical exploration. Therefore, multi-method geophysical prospecting has become a popular topic. In multi-method geophysical prospecting, the joint inversion of seismic and electric data has been extensively researched for decades. However, the methods used for hybrid seismic–electric data acquisition that form the base for multi-method geophysical prospecting techniques have not yet been explored in detail. In this work, we developed a distributed, high-precision, hybrid seismic–electrical data acquisition system using advanced Narrowband Internet of Things (NB-IoT) technology. The system was equipped with a hybrid data acquisition board, a high-performance embedded motherboard based on field-programmable gate array, an advanced RISC machine, and host software. The data acquisition board used an ADS1278 24 bit analog-to-digital converter and FPGA-based digital filtering techniques to perform high-precision data acquisition. The equivalent input noise of the data acquisition board was only 0.5 µV with a sampling rate of 1000 samples per second and front-end gain of 40 dB. The multiple data acquisition stations of our system were synchronized using oven-controlled crystal oscillators and global positioning system technologies. Consequently, the clock frequency error of the system was less than 10−9 Hz at 1 Hz after calibration, and the synchronization accuracy of the data acquisition stations was ±200 ns. The use of sophisticated NB-IoT technologies allowed the long-distance wireless communication between the control center and the data acquisition stations. In validation experiments, it was found that our system was operationally stable and reliable, produced highly accurate data, and it was functionally flexible and convenient. Furthermore, using this system, it is also possible to monitor the real-time quality of data acquisition processes. We believe that the results obtained in this study will drive the advancement of prospective integrated seismic–electrical technologies and promote the use of IoT technologies in geophysical instrumentation.

The Interface Design of TMS320C6713 and AD7679

2014 ◽  
Vol 800-801 ◽  
pp. 741-744
Author(s):  
Zhi Dong Wu ◽  
You Zheng Cui ◽  
Di Pan
Keyword(s):  
Data Acquisition ◽  
High Precision ◽  
Software Design ◽  
Interface Design ◽  
High Speed ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Specific Function ◽  
Interface Circuit

In order to meet the demands of the high precision and high speed, the interface design of TMS320C6713 and AD7679 is widely used in data acquisition system. In this paper, the interface design of TMS320C6713 and AD7679 is introduced, including the design of the interface circuit and the software design of the interface. The configuration of every register of McBSP is also expounded, including configuration method and specific function.

scholarly journals Development of a new distributed hybrid seismic-electrical data acquisition station based on system–on-a-programmable-chip technology

2019 ◽  
Author(s):  
Qisheng Zhang ◽  
Wenhao Li ◽  
Feng Guo ◽  
Zhenzhong Yuan ◽  
Shuaiqing Qiao ◽  
...  
Keyword(s):  
Low Power ◽  
Data Acquisition ◽  
High Precision ◽  
Data Transmission ◽  
Dynamic Range ◽  
Low Voltage ◽  
Low Noise ◽  
Transmission Protocol ◽  
Control Board ◽  
Electrical Data

Abstract. In the past few decades, with the continuous advancement of technology, seismic-electrical instruments have developed rapidly. However, complex and harsh exploration environments have put forward higher requirements and severe challenges for traditional geophysical exploration methods and instruments. Therefore, it is extremely urgent to develop new high-precision exploration instruments and data acquisition systems. In this study, a new distributed seismic-electrical hybrid acquisition station is developed using system-on-a-programmable-chip (SoPC) technology. The acquisition station hardware includes an analog board and a main control board. The analog board uses a signal conditioning circuit and a 24-bit analog-to-digital converter (ADS1271) to achieve high-precision data acquisition, while the main control board uses a low-power SoPC chip to enable high-speed stable data transmission. Moreover, the data transmission protocol for the acquisition station was designed, an improved low-voltage differential signaling data transmission technology was independently developed, and a method to enhance the precision of synchronous acquisition was studied in depth. These key technologies, which were developed for the acquisition station, were integrated into the SoPC of the main control board. Testing results indicate that the synchronization precision of the acquisition station is better than 200 ns, and the maximum low-power data transmission speed is 16 Mbps along a 55 m cable. Simultaneously, the developed acquisition station has the advantages of low noise, large dynamic range, low power consumption, etc., and it can achieve high-precision hybrid acquisition of seismic-electrical data.

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