WO2016165432A1 - 一种地线通信方法及系统 - Google Patents

一种地线通信方法及系统 Download PDF

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Publication number
WO2016165432A1
WO2016165432A1 PCT/CN2016/071032 CN2016071032W WO2016165432A1 WO 2016165432 A1 WO2016165432 A1 WO 2016165432A1 CN 2016071032 W CN2016071032 W CN 2016071032W WO 2016165432 A1 WO2016165432 A1 WO 2016165432A1
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signal
ground
current
channel
magnetoelectric
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PCT/CN2016/071032
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English (en)
French (fr)
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宁远
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宁宝利
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Priority claimed from CN201510170054.7A external-priority patent/CN106160879B/zh
Application filed by 宁宝利 filed Critical 宁宝利
Publication of WO2016165432A1 publication Critical patent/WO2016165432A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
    • H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a ground communication method and system. Background technique
  • the present invention provides a ground communication method and system, which has strong invulnerability, can maintain a good communication signal, and is highly reliable and anti-interference.
  • a ground communication method includes the following steps:
  • the signal transmission structure of the signal conductor and the ground conductor is adjusted according to the attenuation degree of the signal at the receiving end and the transmission signal to noise ratio.
  • the step of detecting the magnetoelectric characteristic environment when the current ground channel is idling is specifically: collecting the magnetic parameter environmental parameters when the current ground channel is idling; and collecting the magnetoelectricity
  • the characteristic environment parameter is converted into a digital signal; the converted digital magnetic signal of the magnetoelectric characteristic is analyzed to obtain the magnetic electricity characteristic environment type and the channel communication bandwidth when the current ground channel is no-load.
  • the step of matching the static magnetoelectric characteristic environment parameter of the adjustment signal transmission output end with the current magnetoline characteristic environment parameter of the current ground line no-load is specifically: when the collected current ground channel is unloaded The environmental parameters of the magnetoelectric characteristics are compared with the static magnetic properties of the current signal transmitting output; if the static magnetic properties of the current signal transmitting output are environmental parameters and the current magnetic parameters of the current ground channel are not loaded, the environmental parameters of the magnetic properties If not, the static magnetoelectric characteristic environmental parameter of the current signal transmitting output end is adjusted to match the current magnetic line environmental magnetic parameter environment parameter.
  • the step of outputting the basic correction signal according to the current ground channel magnetoelectric characteristic environmental parameter and the current ground channel magnetoelectric characteristic environmental parameter is specifically: designing a magnetic impedance characteristic with the current ground channel a signal transmission structure of the ground conductor matched with the environmental parameters; generating a signal form suitable for the current ground channel environment according to the current ground channel magnetoelectric characteristic environmental parameter; and adapting to the current ground line channel magnetoelectric characteristics on the ground conductor
  • the signal form of the environmental parameter outputs a basic correction signal of the maximum bandwidth semaphore.
  • the signal transmission structure and the step of adjusting the signal form and the ground conductor according to the attenuation degree of the signal at the receiving end and the transmission signal to noise ratio are as follows: attenuation of each basic correction signal in real time at the receiving end The degree is recorded and the parasitic electromagnetic interference signal in the signal is analyzed; compared with the signal standard attenuation value and the transmission signal-to-noise ratio of the communication requirement, the attenuation degree and the transmission signal-to-noise ratio difference are fed back to the basic correction signal transmitting end.
  • the signal transmission structure of the ground conductor is adjusted according to the attenuation degree and the transmission signal to noise ratio difference fed back by the signal receiving end.
  • a ground communication system includes:
  • a detecting module configured to detect an environmental parameter of a magnetoelectric characteristic when the current ground channel is idling
  • a correction module configured to output a basic correction signal adapted to an environmental parameter of a current ground channel magnetoelectric characteristic according to a current ground channel magnetoelectric characteristic environment parameter;
  • the signal adjustment module is configured to adjust the signal transmission structure of the signal form and the ground conductor according to the attenuation degree of the signal at the receiving end and the transmission signal to noise ratio.
  • the ground communication system further includes: an acquisition module, configured to collect an environmental parameter of a magnetoelectric characteristic when the current ground channel is idling.
  • the ground communication system further includes: a conversion module, It is used to convert the collected magnetic characteristics environmental parameters into digital signals.
  • the ground communication system further includes: an analysis module, configured to analyze the converted magnetic characteristics of the environmental digital signal to obtain a magnetic electric property environment type and channel when the current ground channel is idling Communication bandwidth.
  • the ground communication system further includes: a signal form generation module for generating a signal form suitable for a current ground channel environment according to a current ground channel magnetoelectric characteristic environmental parameter.
  • the ground communication signal is degraded Reduced, has a good communication signal, and utilizes the characteristics of non-parasitic electromagnetic interference between the grounding conductor and the ground to improve the signal-to-noise ratio of the signal transmission, enhance the anti-electromagnetic interference performance of the signal, and use the grounded conductor to transmit signal communication.
  • the ground wire can be the ground wire or the neutral wire of the power grid.
  • the ground wire can also be buried steel pipe or rail, which makes the ground wire communication have strong invulnerability.
  • FIG. 1 is a flow chart of a method for a ground communication method according to the present invention.
  • FIG. 2 is a schematic structural view of a ground communication system according to the present invention.
  • the ground communication method includes the following steps:
  • Step S1 detecting a magnetic parameter characteristic environment parameter when the current ground channel is idling; the step S1: detecting the magnetoelectric characteristic environment when the current ground channel is idling Specifically: collecting the environmental parameters of the magnetoelectric characteristics when the current ground channel is idling; converting the collected environmental parameters of the magnetoelectric characteristics into digital signals; analyzing the converted digital signals of the magnetoelectric characteristics to obtain the current ground line The type of magnetoelectric characteristics and the channel communication bandwidth when the channel is unloaded.
  • the static magnetoelectric characteristics of the signal transmitting output end need to be adaptively adjusted after the disaster and with the current channel environmental parameters. Matching to achieve the purpose of low attenuation transmission of the signal.
  • Step S2 adjusting the static magnetoelectric characteristic environmental parameter of the signal transmitting output end to match the magnetic parameter characteristic environmental parameter of the current ground channel when the air is empty;
  • the step S2 the step of adjusting the static magnetoelectric characteristic environment parameter of the signal transmitting output end and the current grounding channel no-load magnetoelectric characteristic environment parameter is specifically as follows: the magnetic current characteristic when the collected current ground channel is idling at no load The environmental parameter is compared with the static magnetoelectric characteristic environmental parameter of the current signal transmitting output; if the static magnetic property characteristic environmental parameter of the current signal transmitting output end is different from the collected magnetic current characteristic environmental parameter of the current ground channel empty load, then The static magnetoelectric characteristics of the current signal transmission output are adjusted to match the environmental parameters of the current geoelectric channel at no load.
  • Step S3 output a basic correction signal adapted to the current ground channel magnetic property characteristic environment parameter according to the current ground channel magnetoelectric characteristic environment parameter;
  • the step S3 is: according to the current ground channel magnetoelectric characteristic environment parameter output, the basic correction signal adapted to the current ground channel magnetoelectric characteristic environmental parameter is specifically: designing the current ground channel magnetic property characteristic environmental parameter to match a signal transmission structure of the ground conductor; generating a signal form suitable for the current ground channel environment according to the current ground channel magnetoelectric characteristic environmental parameter; and a signal suitable for the current ground line channel magnetoelectric characteristic environmental parameter on the ground conductor Formally outputs a basic correction signal for the maximum bandwidth semaphore.
  • a basic correction signal suitable for the current channel environment is output, and the signal is matched to a certain signal environment, so it is optimal that the range does not change much.
  • Sine wave signal a basic correction signal (fundamental wave) suitable for the current channel environment is output, and the signal is matched to a certain signal environment, so it is optimal that the range does not change much.
  • the receiving end is also received within a certain range of magnetic parameters of the magnetoelectric characteristics, which not only facilitates the high sensitivity, but also transmits signals within a certain range of magnetic parameters of the magnetoelectric characteristics to improve the anti-interference of the signal.
  • Step S4 adjusting the signal form according to the attenuation degree of the signal at the receiving end and the transmission signal to noise ratio The signal transmission structure of the ground conductor.
  • Step S4 The signal transmission structure and the step of adjusting the signal form and the ground conductor according to the attenuation degree of the signal at the receiving end and the transmission signal to noise ratio are as follows: The attenuation degree of each basic correction signal is recorded in real time at the receiving end and The parasitic electromagnetic interference signal in the signal is analyzed; compared with the signal standard attenuation value and the transmission signal to noise ratio that meet the communication requirement, the attenuation degree and the transmission signal to noise ratio difference are fed back to the basic correction signal transmitting end; according to the signal receiving The attenuation of the end feedback and the transmission signal-to-noise ratio difference adjustment signal form and the signal transmission junction of the ground conductor are designed to match the signal transmission structure of the grounding conductor of the grounding conductor of the geoelectric characteristic when the ground channel is idling.
  • the signal form that has less influence on the signal transmission distance reduces the ground communication signal attenuation, has a good communication signal, and utilizes the characteristics of the parasitic electromagnetic interference between the grounding conductor and the ground to improve the signal transmission signal to noise ratio.
  • the ground wire can be buried steel pipe or rail, which makes the ground wire communication highly resistant to damage.
  • a ground communication system includes:
  • the detecting module 1 is configured to detect an environmental parameter of a magnetoelectric characteristic when the current ground channel is idling;
  • the adjustment matching module 2 is configured to adjust the static magnetoelectric characteristic environment parameter of the signal transmission output end to match the magnetic parameter characteristic environmental parameter of the current ground channel when the air is empty;
  • the correction module 3 is configured to output a basic correction signal adapted to the current ground channel magnetic property characteristic environment parameter according to the current ground channel magnetoelectric characteristic environment parameter;
  • the signal adjustment module 4 is configured to adjust the signal transmission structure of the signal form and the ground conductor according to the attenuation degree of the signal at the receiving end and the transmission signal to noise ratio.
  • the ground communication system further includes: an acquisition module 5, configured to collect the magnetic parameter environmental parameters when the current ground channel is idling.
  • the ground communication system further includes: a conversion module 6 configured to convert the collected magnetic characteristics environmental parameters into digital signals.
  • the ground communication system further includes: an analysis module 7 configured to analyze the converted magnetic characteristics of the environmental digital signal to obtain a magnetic electric characteristic environment when the current ground channel is idling Type and channel communication bandwidth.
  • the ground communication system further includes: The module 8 is configured to generate a signal form suitable for the current ground channel environment according to the current ground channel magnetoelectric characteristic environment parameter.
  • the ground communication system is a wired communication with a grounded, non-insulated conductor as a channel.
  • the communication channel can be a buried steel pipe or rail, or the power system ground and neutral, which makes the communication system highly resistant to damage, and because of its less influence on the grounding electrical characteristics, the ground wire is made.
  • Communication systems have the ability to maintain good communication signals across geology. It has a wide range of applications in areas such as oil drilling systems, fire command, tunnel emergency liaison, power fault measurement and control, etc. Ground-line communication has invulnerability and signal penetration that cannot be achieved by wireless and cable.
  • Wired communication systems with no insulation characteristics have better applicability than pure wireless communication.
  • the reliability and anti-interference of wired communication are guaranteed in emergency communication.
  • the invulnerability of non-insulated buried conductors will enable such wired communication. Meet the needs of emergency communications.
  • Ground communication uses a grounded conductor to transmit the signal, and he must use the earth as a dipole to make the ground communication suitable for the actual appliance-free network of wire mesh. It can realize signal transmission without attenuation or less attenuation, and at the same time design the signal transmission structure of the grounding conductor and the signal form that the channel environment has little influence on the transmission distance of the signal, and at the same time improve the transmission by using the parasitic electromagnetic interference between the grounding conductor and the earth. Signal to noise ratio.
  • ground-line communication is used in disaster relief communication in underground engineering. It is a disaster-relief communication system that transmits information such as rails and steel pipes that are buried and flooded in underground engineering and tunnel geological disasters. It is free from flooding, fire, explosion, and collapse. The impact of burial on the communication system.
  • the ground communication signal is degraded Reduced, has a good communication signal, and utilizes the characteristics of non-parasitic electromagnetic interference between the grounding conductor and the ground to improve the signal-to-noise ratio of the signal transmission, enhance the anti-electromagnetic interference performance of the signal, and use the grounded conductor to transmit signal communication.
  • the ground wire can be buried steel pipe or rail, which makes the ground wire communication have strong invulnerability. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

本发明公开了一种地线通信方法及系统，地线通信方法包括如下步骤：对当前地线信道空载时的磁电特性环境参数进行检测；调节信号发射输出端静态磁电特性环境参数与地线信道空载时的磁电特性环境参数相匹配；根据当前地线信道磁电特性环境参数输出与当前地线信道磁电特性环境参数相适应的基本校正信号；根据接收端信号的衰减度及传输信噪比及时调整信号形式与地线导体的信号传输结构，通过设计与地线信道空载时磁电特性环境参数相适应的地线接地导体信号传输结构和对信号传输距离影响较小的信号形式，使地线通信信号衰减少，具有良好的通信信号，利用地线接地导体与大地之间的无寄生电磁干扰的特性来提高信号传输信噪比，增强信号抗电磁干扰性能。地线可以是电力网系统的地线或中性线，也可以是接地钢轨、钢管等导体。

Description

一种地线通信方法及系统 技术领域
本发明涉及通信技术领域， 尤其涉及一种地线通信方法及系统。 背景技术
在地下空间作业中， 无线信号的稳定和可靠性收到环境的限制。 而有线通信电缆在地质灾害中容易毁坏， 使得地下作业地质事故的应 急联络一直未得到有效解决。 同时在工业监控通信中， 控制信号线往 往意外接地而影响信号的传输。 在对导线有破坏的火灾， 坍塌、 水害 中应急联络显得重要。 目前的电力载波通信受到电网接地和变压器隔 离的影响， 不能完成相间隔离无区域限制和无线路接地故障影响的通 信。
发明内容
鉴于目前地下通信存在的上述不足， 本发明提供一种地线通信方 法及系统， 有很强的抗毁性， 能够保持良好的通信信号， 具有高度可 靠性和抗干扰性。
为达到上述目的， 本发明的实施例采用如下技术方案：
一种地线通信方法， 所述地线通信方法包括如下步骤：
对当前地线信道空载时的磁电特性环境参数进行检测；
调节信号发射输出端的静态磁电特性环境参数使之与当前地线信 道空载时的磁电特性环境参数相匹配；
根据当前地线信道磁电特性环境参数输出与当前地线信道磁电特 性环境参数相适应的基本校正信号；
根据接收端信号的衰减度及传输信噪比调整信号形式与地线导体 的信号传输结构。
依照本发明的一个方面， 所述对当前地线信道空载时的磁电特性 环境进行检测步骤具体为： 对当前地线信道空载时的磁电特性环境参 数进行采集； 将采集的磁电特性环境参数转换成数字信号； 对转换后 的磁电特性环境数字信号进行分析得出当前地线信道空载时的磁电特 性环境类型及信道通信带宽。 依照本发明的一个方面， 所述调节信号发射输出端的静态磁电特 性环境参数与当前地线信道空载时的磁电特性环境参数相匹配步骤具 体为： 将采集的当前地线信道空载时的磁电特性环境参数与当前信号 发射输出端的静态磁电特性环境参数进行比对； 若当前信号发射输出 端的静态磁电特性环境参数与采集的当前地线信道空载时的磁电特性 环境参数不相同， 则调节当前信号发射输出端的静态磁电特性环境参 数与当前地线信道空载时的磁电特性环境参数相匹配。
依照本发明的一个方面， 所述根据当前地线信道磁电特性环境参 数输出与当前地线信道磁电特性环境参数相适应的基本校正信号步骤 具体为： 设计出与当前地线信道磁电特性环境参数相匹配的地线导体 的信号传输结构； 根据当前地线信道磁电特性环境参数产生适于当前 地线信道环境的信号形式； 在地线导体上以适于当前地线信道磁电特 性环境参数的信号形式输出最大带宽信号量的基本校正信号。
依照本发明的一个方面， 所述根据接收端信号的衰减度、 传输信 噪比及时调整信号形式与地线导体的信号传输结构与步骤具体为： 在 接收端实时对每段基本校正信号的衰减度进行记录并对信号中的寄生 电磁干扰信号进行分析； 与达到通信要求的信号标准衰减度值与传输 信噪比进行对比， 将衰减度与传输信噪比差值反馈给基本校正信号发 射端； 根据信号接收端反馈的衰减度与传输信噪比差值调整信号形式 与地线导体的信号传输结构。
一种地线通信系统， 所述地线通信系统包括：
检测模块， 用于对当前地线信道空载时的磁电特性环境参数进行检 测；
调节匹配模块， 用于调节信号发射输出端的静态磁电特性环境参数 使之与当前地线信道空载时的磁电特性环境参数相匹配；
校正模块， 用于根据当前地线信道磁电特性环境参数输出与当前地 线信道磁电特性环境参数相适应的基本校正信号；
信号调整模块， 用于根据接收端信号的衰减度及传输信噪比调整 信号形式与地线导体的信号传输结构。
依照本发明的一个方面， 所述地线通信系统还包括： 采集模块， 用于对当前地线信道空载时的磁电特性环境参数进行采集。
依照本发明的一个方面， 所述地线通信系统还包括： 转换模块， 用于将采集的磁电特性环境参数转换成数字信号。
依照本发明的一个方面， 所述地线通信系统还包括： 分析模块， 用于对转换后的磁电特性环境数字信号进行分析得出当前地线信道空 载时的磁电特性环境类型及信道通信带宽。
依照本发明的一个方面， 所述地线通信系统还包括： 信号形式生 成模块， 用于根据当前地线信道磁电特性环境参数产生适于当前地线 信道环境的信号形式。
本发明实施的优点： 通过设计与地线信道空载时的磁电特性环境 参数相适应的地线接地导体的信号传输结构和对信号传输距离影响较 小的信号形式， 使得地线通信信号衰减少， 具有良好的通信信号， 同 时利用地线接地导体与大地之间的无寄生电磁干扰的特性来提高信号 传输信噪比， 增强信号抗电磁干扰性能， 地线通信利用接地的导体传 输信号通信， 地线可以是电网地线或中性线， 地线也可为地埋钢管或 钢轨， 使得地线通信具有很强的抗毁性。
附图说明
为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例 中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图 仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付 出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明所述的一种地线通信方法的方法流程图；
图 2为本发明所述的一种地线通信系统的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方 案进行清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部 分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普 通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
如图 1 所示， 一种地线通信方法， 所述地线通信方法包括如下步 骤：
步骤 S 1 : 对当前地线信道空载时的磁电特性环境参数进行检测； 所述步骤 S 1 :对当前地线信道空载时的磁电特性环境进行检测步骤 具体为： 对当前地线信道空载时的磁电特性环境参数进行采集； 将采集 的磁电特性环境参数转换成数字信号； 对转换后的磁电特性环境数字信 号进行分析得出当前地线信道空载时的磁电特性环境类型及信道通信 带宽。
如洪水淹没前地线信道空载时的磁电特征与洪水淹没后的磁电特 征差异很大， 那么信号发射输出端的静态磁电特征参数需要在灾变后进 行适应性调整并与当前信道环境参数相匹配， 以达到信号低衰减度传输 的目的。
步骤 S2 :调节信号发射输出端的静态磁电特性环境参数使之与当前 地线信道空载时的磁电特性环境参数相匹配；
所述步骤 S2 :调节信号发射输出端的静态磁电特性环境参数与当前 地线信道空载时的磁电特性环境参数相匹配步骤具体为： 将采集的当前 地线信道空载时的磁电特性环境参数与当前信号发射输出端的静态磁 电特性环境参数进行比对； 若当前信号发射输出端的静态磁电特性环境 参数与采集的当前地线信道空载时的磁电特性环境参数不相同， 则调节 当前信号发射输出端的静态磁电特性环境参数与当前地线信道空载时 的磁电特性环境参数相匹配。
步骤 S3 :根据当前地线信道磁电特性环境参数输出与当前地线信道 磁电特性环境参数相适应的基本校正信号；
所述步骤 S3 :根据当前地线信道磁电特性环境参数输出与当前地线 信道磁电特性环境参数相适应的基本校正信号步骤具体为： 设计出与当 前地线信道磁电特性环境参数相匹配的地线导体的信号传输结构； 根据 当前地线信道磁电特性环境参数产生适于当前地线信道环境的信号形 式； 在地线导体上以适于当前地线信道磁电特性环境参数的信号形式输 出最大带宽信号量的基本校正信号。
依据地线信道所处的磁电特性环境参数输出一种适合当前信道环 境的基本校正信号 （基波） ， 这种信号是对一定信号环境的匹配， 所以 是最佳的是范围变化不大的正弦波信号。
这样接收端也就在一定的磁电特性环境参数范围内接收， 不但有利 于高灵敏度的保证， 在一定磁电特性环境参数范围内进行信号发送还有 利于提高信号的抗干扰性。
步骤 S4 : 根据接收端信号的衰减度及传输信噪比调整信号形式与 地线导体的信号传输结构。
所述步骤 S4 : 根据接收端信号的衰减度、传输信噪比及时调整信号 形式与地线导体的信号传输结构与步骤具体为： 在接收端实时对每段基 本校正信号的衰减度进行记录并对信号中的寄生电磁干扰信号进行分 析； 与达到通信要求的信号标准衰减度值与传输信噪比进行对比， 将衰 减度与传输信噪比差值反馈给基本校正信号发射端； 根据信号接收端反 馈的衰减度与传输信噪比差值调整信号形式与地线导体的信号传输结 通过设计与地线信道空载时的磁电特性环境参数相适应的地线接 地导体的信号传输结构和对信号传输距离影响较小的信号形式， 使得地 线通信信号衰减少， 具有良好的通信信号， 同时利用地线接地导体与大 地之间的无寄生电磁干扰的特性来提高信号传输信噪比， 增强信号抗电 磁干扰性能， 地线通信利用接地的导体传输信号通信， 地线可为地埋钢 管或钢轨， 使得地线通信具有很强的抗毁性。
一种地线通信系统的实施例：
一种地线通信系统， 所述地线通信系统包括：
检测模块 1， 用于对当前地线信道空载时的磁电特性环境参数进行 检测；
调节匹配模块 2， 用于调节信号发射输出端的静态磁电特性环境参 数使之与当前地线信道空载时的磁电特性环境参数相匹配；
校正模块 3， 用于根据当前地线信道磁电特性环境参数输出与当前 地线信道磁电特性环境参数相适应的基本校正信号；
信号调整模块 4，用于根据接收端信号的衰减度及传输信噪比调整 信号形式与地线导体的信号传输结构。
在本发明一可选的实施例中， 地线通信系统还包括： 采集模块 5， 用于对当前地线信道空载时的磁电特性环境参数进行采集。
在本发明一可选的实施例中， 地线通信系统还包括： 转换模块 6， 用于将采集的磁电特性环境参数转换成数字信号。
在本发明一可选的实施例中，地线通信系统还包括： 分析模块 7， 用于对转换后的磁电特性环境数字信号进行分析得出当前地线信道空 载时的磁电特性环境类型及信道通信带宽。
在本发明一可选的实施例中， 地线通信系统还包括： 信号形式生 成模块 8，用于根据当前地线信道磁电特性环境参数产生适于当前地线 信道环境的信号形式。
地线通信系统是以接地的非绝缘导体为信道的有线通信。这种通信 的信道可以是一根地埋钢管或钢轨， 或者电力系统地线及零线， 这使得 通信系统具有很强的抗毁性， 由于其对接地电特性影响较少， 所以使得 地线通信系统具有穿越地质而保持好的通信信号的性能。在石油随钻系 统、 火灾指挥、 隧道应急联络、 电力故障测控等领域通信具有广泛的应 用， 地线通信具有无线和有线不能达到的抗毁性和信号穿透性。
在地下空间作业中， 无线信号的稳定和可靠性收到环境的限制。 而 有线通信电缆在地质灾害中容易毁坏， 使得地下作业地质事故的应急联 络一直未得到有效解决。 同时在工业监控通信中， 控制信号线往往意外 接地而影响信号的传输。 在对导线有破坏的火灾， 坍塌、 水害中应急联 络显得重要。
具有无绝缘特征的有线通信系统比单纯无线通信有更好的适用性， 有线通信的可靠性和抗干扰在应急通信中保障作用， 无绝缘地埋导体的 抗毁性将能使得这种有线通信满足应急联络的需要。
地线通信利用接地的导体传输信号， 而且他又必须以大地作为一个 偶极子， 这样才能使地线通信适合于现实中的无电器规则的管网线材网。 可实现无衰减或少衰减的信号传输， 同时设计出接地导体的信号传输结 构和信道环境对信号的传输距离影响较小的信号形式， 同时利用接地导 体与大地之间的无寄生电磁干扰提高传输信噪比。
例如地线通信在地下工程救灾通信中应用是以地下工程和隧道的 地质灾害中被埋被淹的钢轨、钢管等为信道进行信息传输的救灾通信系 统， 它不受水害淹没、 火灾爆炸、 坍塌掩埋对通信系统的影响。
本发明实施的优点： 通过设计与地线信道空载时的磁电特性环境 参数相适应的地线接地导体的信号传输结构和对信号传输距离影响较 小的信号形式， 使得地线通信信号衰减少， 具有良好的通信信号， 同 时利用地线接地导体与大地之间的无寄生电磁干扰的特性来提高信号 传输信噪比， 增强信号抗电磁干扰性能， 地线通信利用接地的导体传 输信号通信， 地线可为地埋钢管或钢轨， 使得地线通信具有很强的抗 毁性。 。
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并 不局限于此， 任何熟悉本领域技术的技术人员在本发明公开的技术范 围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。 因此， 本发明的保护范围应以所述权利要求的保护范围为准。

Claims

1、 一种地线通信方法， 其特征在于， 所述地线通信方法 包括如下步骤：
对当前地线信道空载时的磁电特性环境参数进行检测； 调节信号发射输出端的静态磁电特性环境参数使之与当前 地线信道空载时的磁电特性环境参数相匹配；
根据当前地线信道磁电特性环境参数输出与当前地线信道 磁电特性环境参数相适应的基本校正信号；
根据接收端信号的衰减度及传输信噪比调整信号形式与地 线导体的信号传输结构。
2、 根据权利要求 1 所述的地线通信方法， 其特征在于， 所述对当前地线信道空载时的磁电特性环境进行检测步骤具 体为：
对当前地线信道空载时的磁电特性环境参数进行采集； 将采集的磁电特性环境参数转换成数字信号；
对转换后的磁电特性环境数字信号进行分析得出当前地线 信道空载时的磁电特性环境类型及信道通信带宽。
3、 根据权利要求 1 所述的地线通信方法， 其特征在于， 所述调节信号发射输出端的静态磁电特性环境参数与当前地 线信道空载时的磁电特性环境参数相匹配步骤具体为：
将采集的当前地线信道空载时的磁电特性环境参数与当前 信号发射输出端的静态磁电特性环境参数进行比对；
若当前信号发射输出端的静态磁电特性环境参数与采集的 当前地线信道空载时的磁电特性环境参数不相同， 则调节当前 信号发射输出端的静态磁电特性环境参数与当前地线信道空载 时的磁电特性环境参数相匹配。
4、 根据权利要求 1 所述的地线通信方法， 其特征在于， 所述根据当前地线信道磁电特性环境参数输出与当前地线信 道磁电特性环境参数相适应的基本校正信号步骤具体为：
设计出与当前地线信道磁电特性环境参数相匹配的地线导 体的信号传输结构；
根据当前地线信道磁电特性环境参数产生适于当前地线信 道环境的信号形式；
在地线导体上以适于当前地线信道磁电特性环境参数的信 号形式输出最大带宽信号量的基本校正信号。
5、 根据权利要求 1至 4之一所述的地线通信方法， 其特 征在于， 所述根据接收端信号的衰减度、 传输信噪比及时调整 信号形式与地线导体的信号传输结构与步骤具体为：
在接收端实时对每段基本校正信号的衰减度进行记录并对 信号中的寄生电磁干扰信号进行分析；
与达到通信要求的信号标准衰减度值与传输信噪比进行对 比， 将衰减度与传输信噪比差值反馈给基本校正信号发射端； 根据信号接收端反馈的衰减度与传输信噪比差值调整信号 形式与地线导体的信号传输结构。
对于信道环境变化不大的地线通信网可以固定各参数进行 通信。
6、 一种地线通信系统， 其特征在于， 所述地线通信系统包 括：
检测模块，用于对当前地线信道空载时的磁电特性环境参数 进行检测；
调节匹配模块，用于调节信号发射输出端的静态磁电特性环 境参数与当前地线信道空载时的磁电特性环境参数相匹配； 校正模块，用于根据当前地线信道磁电特性环境参数输出与 当前地线信道磁电特性环境参数相适应的基本校正信号；
信号调整模块，用于根据接收端信号的衰减度及传输信噪比 及时调整信号形式与地线导体的信号传输结构。
7、 根据权利要求 6 所述的地线通信系统， 其特征在于， 所述地线通信系统还包括： 采集模块， 用于对当前地线信道空 载时的磁电特性环境参数进行采集。
8、 根据权利要求 7 所述的地线通信系统， 其特征在于， 所述地线通信系统还包括： 转换模块， 用于将采集的磁电特性 环境参数转换成数字信号。
9、 根据权利要求 8 所述的地线通信系统， 其特征在于， 所述地线通信系统还包括： 分析模块， 用于对转换后的磁电 特性环境数字信号进行分析得出当前地线信道空载时的磁电 特性环境类型及信道通信带宽。
10、 根据权利要求 6至 9之一所述的地线通信系统， 其特 征在于， 所述地线通信系统还包括： 信号形式生成模块， 用于 根据当前地线信道磁电特性环境参数产生适于当前地线信道 环境的信号形式。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010140270A (ja) * 2008-12-11 2010-06-24 Nippon Telegr & Teleph Corp <Ntt> センシングシステム、ｒｆｉｄタグ、及びセンシング装置
CN102594462A (zh) * 2010-09-29 2012-07-18 E-光谱技术公司 便携式无线透地通信系统
CN102684105A (zh) * 2012-04-23 2012-09-19 中国电力科学研究院 一种光纤复合架空地线和普通地线匹配的设计方法
CN103984032A (zh) * 2014-04-28 2014-08-13 吉林大学 实时信噪特征提取的多工作模式核磁信号探测装置及方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010140270A (ja) * 2008-12-11 2010-06-24 Nippon Telegr & Teleph Corp <Ntt> センシングシステム、ｒｆｉｄタグ、及びセンシング装置
CN102594462A (zh) * 2010-09-29 2012-07-18 E-光谱技术公司 便携式无线透地通信系统
CN102684105A (zh) * 2012-04-23 2012-09-19 中国电力科学研究院 一种光纤复合架空地线和普通地线匹配的设计方法
CN103984032A (zh) * 2014-04-28 2014-08-13 吉林大学 实时信噪特征提取的多工作模式核磁信号探测装置及方法

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