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A bit error rate testing method and system for underground single-core bus system

A technology of bit error rate test and bus system, applied in the field of bit error rate test of downhole single-core bus system, can solve the problems of large data difference, low reliability, no randomness and diversity, etc., saving time , Improve work efficiency and avoid single effect

Active Publication Date: 2022-02-01
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

The code unit sent by this traditional method is single, does not have randomness and diversity, and is quite different from the data transmitted in the actual production process, and the reliability is low
In addition, in the process of manual comparison, it is easy to cause misjudgment and misreading, which affects the accuracy of bit error statistics, and is time-consuming and laborious.

Method used

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  • A bit error rate testing method and system for underground single-core bus system
  • A bit error rate testing method and system for underground single-core bus system
  • A bit error rate testing method and system for underground single-core bus system

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] The present invention provides a bit error rate testing method and system of an underground single-core bus system, referring to Figure 2-10 . The so-called bit error, in the binary digital signal, refers...

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Abstract

The invention discloses a bit error rate testing method and system for an underground single-core bus system. The testing method includes the following steps: S1, sending a bit error rate test start command; S2, judging whether the bit error rate test start command is correct , correct, then generate a test symbol and transmit the test symbol; S3, receive the test symbol, generate received data; S4, generate a comparison symbol, compare whether the received data is consistent with the comparison symbol, If yes, continue the comparison; if not, increase the number of bit errors and continue the comparison; S5, regularly count the number of bit errors, and calculate the bit error rate. The invention avoids misjudgment and misreading that may occur in the process of manual statistics. And it saves time to a large extent, improves work efficiency, and has strong applicability.

Description

technical field [0001] The invention relates to the technical field of downhole information transmission, in particular to a bit error rate testing method and system for downhole single-core bus systems. Background technique [0002] The downhole single-core bus system is the key part between the surface data acquisition system and downhole instruments in logging while drilling. Power supply for each instrument. The structure diagram of the single-core bus system is as follows: figure 1 As shown, it is characterized in that the shell of the drill collar is used as the ground wire, and a single-core wire is used to simultaneously complete signal transmission and power supply for the instrument. Each instrument installed in the drill collar is connected to the bus through the drill collar shell and the single-core wire. system. [0003] The single-core bus structure can adapt to the harsh environment of underground high temperature, high pressure and strong vibration, and a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L43/0823H04L1/20G06F5/06
CPCH04L43/0847H04L1/203G06F5/065
Inventor 王煜亮真齐辉
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI