Telemetry seismograph data transmission method based on multi-hop Ethernet

A transmission method and seismic data technology, applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve the problems of inability to adapt to the requirements of field seismic exploration construction and complicated connection, so as to facilitate field construction and simplify system connection. Line, the effect of increasing the data transmission rate

Inactive Publication Date: 2011-07-20
JILIN UNIV
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Traditional Ethernet needs switches, routers and other equipment to form a star or tree topology when networking. The wiring is complicated and cannot meet the requirements of field seismic exploration and construction.

Method used

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  • Telemetry seismograph data transmission method based on multi-hop Ethernet
  • Telemetry seismograph data transmission method based on multi-hop Ethernet
  • Telemetry seismograph data transmission method based on multi-hop Ethernet

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and embodiment for further detailed description:

[0024] Connect seismograph host A, cross station B, and acquisition station C in a multi-hop manner, as attached figure 1 As shown, the TCP / IP protocol runs on it.

[0025] Initiated by the A terminal of the seismograph host, the arrangement is established, and the process of establishing the arrangement is that the seismograph host A assigns IP addresses to each intersection station and collection station, and at the same time establishes a routing table in each station. The process of establishing a layout includes the following two steps: First, build a cross-station layout, that is, assign IP addresses to each cross-station according to the connection sequence and establish the necessary routing table. The process is: Divide the four Ethernet ports of the cross station into four directions: uplink, downlink, left, right, and four directions, among which the uplink port...

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Abstract

The invention relates to a telemetry seismograph data transmission method based on a multi-hop Ethernet architecture. A seismograph host is connected with cross stations by cross lines in a multi-hop mode; the cross stations are respectively connected with acquisition stations at both sides by jug lines in the multi-hop mode; and the seismograph host is based on a TCP / IP protocol to interact commands and transmit data with the cross stations and ensures the reliability of earthquake data transmission. The invention applies Ethernet technologies to a wired telemetry seismograph which adopts the multi-hop architecture to connect the seismograph host, the cross stations and the acquisition stations, thereby simplifying the system connection, removing equipment in a traditional Ethernet, suchas a switch, a router, and the like and facilitating the field construction. The seismograph host automatically distributes IP addresses for all the cross stations and the acquisition stations and can obtain connection sequences. The Ethernet based on 100Mbps can greatly improve the data transmission rate of the wired telemetry seismograph, and the practically measured data transmission rate of ajug line can achieve 30Mbps and exceeds the prior similar instrument only achieving 16Mbps.

Description

Technical field: [0001] The invention relates to a wired telemetry seismograph in geophysical exploration, in particular to a method for transmitting seismic data based on a multi-hop Ethernet architecture in the wired telemetry seismograph. Background technique: [0002] The wired telemetry seismograph is developed on the basis of the conventional digital seismograph, and usually includes three parts, namely the acquisition unit, the data transmission unit, and the central control host. The data transmission part is one of the core technologies of the wired telemetry seismograph, and its performance index determines the real-time channel capability of the entire system. At present, the most widely used wired telemetry seismograph in China is the 428XL of the French company Sercel, with a data transmission rate of 16Mbps, and is recognized as the most advanced seismograph in the world. With the rapid development of Ethernet technology, besides the office field, it has also ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L12/56H04L12/701
Inventor 张林行林君陈祖斌
Owner JILIN UNIV
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