Wireless real-time transmission node type seismograph system and synchronous calibration method

Abstract

The invention relates to a wireless real-time transmission node type seismograph system, which comprises at least one first-level acquisition network, a second-level network wireless control host and a control terminal which are connected in series, and is characterized in that each first-level acquisition network comprises a first-level network wireless control host and a plurality of wireless node instruments connected with the first-level network wireless control host; and after the second-level network wireless control host collects data collected by the first-level network wireless control hosts, the data are forwarded to the control terminal in real time through a high-speed network interface of the second-level network wireless control host, and the control terminal displays and stores seismic data in real time. The invention also designs a method for carrying out synchronous calibration by adopting the wireless real-time transmission node type seismograph system. According to the wireless real-time transmission node type seismograph system and the wireless real-time transmission node type seismograph system, the application range and the construction efficiency of a wireless seismic acquisition system are greatly improved, and wireless real-time acquisition and transmission of seismic data are realized.

Description

technical field [0001] The invention relates to the field of seismic exploration, in particular to a wireless real-time transmission node type seismograph system and a method for synchronous calibration. Background technique [0002] Seismic prospecting is the main means of exploring oil and natural gas on land and sea, and it is also an important prospecting method for other mineral resources. It is widely used in the study of the earth's internal structure, engineering seismic exploration and detection, and disaster prediction. [0003] The traditional high-precision multi-channel digital seismic data acquisition system mainly consists of three parts: geophones, seismic lines, and seismic recorders. Seismic detectors are mainly used to directly pick up artificial or natural seismic signals, and convert the vibrations into electrical signals that can be collected by seismographs. The seismic recording system performs interference filtering and gain amplification control on...

AI Technical Summary

Problems solved by technology

Bluetooth and zigbee are rarely put into practical use because of insufficient wireless data transmission bandwidth, short transmission distance, and inability to transmit multi-channel data in real time, which limits the number of instrument channels and the range of arrangement and layout.

The wireless seismograph based on WIFI technology can meet the requirements in terms of transmission bandwidth and real-time transmission. The WIFI transmission distance and stability are ideal under the straight-line visible distance. Ups and downs, etc., will affect the WIFI signal transmission distance and stability. Generally, the maximum WIFI transmission distance of routers is about 100-200 meters, which is helpless for larger exploration sites.

Wireless seismographs based on 3G / 4G / 5G technology are very convenient to use in urban environments, and can meet the requirements in real-time data transmission and communication distance, but petroleum seismic exploration and engineering seismic exploration projects are often located in remote areas or even uninhabited areas In China, there are few base stations around the site, and 3G / 4G / 5G mobile phone signals are very weak or even have no signal coverage, so it is often impossible to work in remote areas

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