技术领域technical field
本发明涉及铁路信号监控技术领域，具体是一种基于多路光纤通信的铁路信号监测系统。The invention relates to the technical field of railway signal monitoring, in particular to a railway signal monitoring system based on multi-channel optical fiber communication.
背景技术Background technique
光纤通信系统是以光为载波，利用纯度极高的玻璃拉制成极细的光导纤维作为传输媒介，通过光电变换，用光来传输信息的通信系统。光纤通信作为信息化的主要技术支柱之一，必将成为21世纪最重要的战略性产业。光纤通信技术和计算机技术是信息化的两大核心支柱，计算机负责把信息数字化，输入网络中去；光纤则是担负着信息传输的重任。当代社会和经济发展中，信息容量日益剧增，为提高信息的传输速度和容量，光纤通信被广泛的应用于信息化的发展，成为继微电子技术之后信息领域中的重要技术。The optical fiber communication system is a communication system that uses light as the carrier, uses ultra-thin optical fibers drawn from extremely high-purity glass as the transmission medium, and uses light to transmit information through photoelectric conversion. As one of the main technical pillars of informatization, optical fiber communication will surely become the most important strategic industry in the 21st century. Optical fiber communication technology and computer technology are the two core pillars of informatization. The computer is responsible for digitizing information and inputting it into the network; optical fiber is responsible for the important task of information transmission. In the development of contemporary society and economy, the information capacity is increasing day by day. In order to improve the transmission speed and capacity of information, optical fiber communication is widely used in the development of informatization, and has become an important technology in the information field after microelectronics technology.
目前，铁路信号微机监测系统已得到了广泛应用，该系统通过对各种模拟量信号、开关量信号的实时采集分析，为电务维修人员掌握设备运用状态、故障处理和故障分析提供了重要的技术手段和依据，并取得了一定的效果。At present, the railway signal microcomputer monitoring system has been widely used. Through the real-time collection and analysis of various analog signals and switch signals, the system provides important information for the electrical maintenance personnel to grasp the equipment operation status, fault handling and fault analysis. Technical means and basis, and achieved certain results.
铁路信号存在着信号信息量大且繁杂的特性，为了对上述信息量大且繁杂的信号进行高效的采集、输送和分析，本申请提出了一种基于多路光纤通信的铁路信号监测系统。Railway signals have the characteristics of large and complicated signal information. In order to efficiently collect, transmit and analyze the above-mentioned large and complicated signals, this application proposes a railway signal monitoring system based on multi-channel optical fiber communication.
发明内容Contents of the invention
本发明的目的在于提供一种基于多路光纤通信的铁路信号监测系统，以解决上述背景技术中提出的问题。The purpose of the present invention is to provide a railway signal monitoring system based on multi-channel optical fiber communication, so as to solve the problems raised in the above-mentioned background technology.
为实现上述目的，本发明提供如下技术方案：To achieve the above object, the present invention provides the following technical solutions:
一种基于多路光纤通信的铁路信号监测系统，包括：A railway signal monitoring system based on multi-channel optical fiber communication, comprising:
数据采集模块，设置有多组，用于采集铁路信号系统设备的电气特性信息，和/或，状态信息，数据采集模块还包括赋址模块，用于为采集到的信息关联唯一可识别的地址信息，所述地址信息用于关联对应数据采集模块，在发生故障时，依据该信息实现寻址操作；The data collection module is provided with multiple groups, and is used to collect electrical characteristic information of railway signaling system equipment, and/or, status information. The data collection module also includes an addressing module, which is used to associate a uniquely identifiable address for the collected information information, the address information is used to correlate with the corresponding data acquisition module, and when a failure occurs, the addressing operation is implemented according to the information;
光发射源，设置有多组，与数据采集模块通信，用于将数据采集模块采集到的信息加载到光脉冲上；The light emitting source is provided with multiple groups, communicates with the data acquisition module, and is used to load the information collected by the data acquisition module onto the optical pulse;
传输单元，设置有多组，用于对光信号进行传输，以将监测数据输出给预处理单元；The transmission unit is provided with multiple groups, and is used to transmit the optical signal, so as to output the monitoring data to the preprocessing unit;
光端机，与传输单元连接，用于接收传输单元传输来的光信号；An optical transceiver, connected to the transmission unit, for receiving the optical signal transmitted by the transmission unit;
预处理单元，对光信号进行预处理，得到多路数据采集模块得到的信息以及关于该信息的地址信息，并将其输出给终端设备，将监测结果进行显示。The preprocessing unit preprocesses the optical signal, obtains the information obtained by the multi-channel data acquisition module and the address information about the information, and outputs it to the terminal equipment, and displays the monitoring results.
作为本发明进一步的方案：还包括连接室内外信号线缆的分线器，所述分线器上连接有对信号线缆进行雷电防护的防雷模块和对信号线缆进行采集的数据采集模块。As a further solution of the present invention: it also includes a splitter for connecting indoor and outdoor signal cables, and the splitter is connected with a lightning protection module for lightning protection of signal cables and a data acquisition module for collecting signal cables .
作为本发明进一步的方案：所述分线器矩阵排列设置，并在同一行设置一横向汇流条连接该行的防雷模块的地线，或者同一列设置一纵向汇流条连接该列防雷模块的地线，所述横向或纵向汇流条汇集在一起形成防雷总地线，在总地线上设置有地线断接装置。As a further solution of the present invention: the splitters are arranged in a matrix, and a horizontal bus bar is arranged in the same row to connect the ground wires of the lightning protection modules in the row, or a vertical bus bar is arranged in the same column to connect the lightning protection modules in the row The ground wires, the horizontal or vertical bus bars are brought together to form a lightning protection general ground wire, and a ground wire disconnecting device is arranged on the general ground wire.
作为本发明再进一步的方案：还包括压缩模块，在信息进入到光发射源前，所述信息经过压缩模块压缩处理，用于减少其所占用的通道容量。As a further solution of the present invention: a compression module is also included, and before the information enters the light emitting source, the information is compressed by the compression module to reduce the channel capacity occupied by it.
作为本发明再进一步的方案：所述传输单元包括依次连接的光纤放大器和拉曼光纤放大器，其中，光纤放大器用于将承载有所得信息的光脉冲序列进行功率调整，拉曼光纤放大器用于增加光纤中可传输的信息容量和传输距离。As a further solution of the present invention: the transmission unit includes a fiber amplifier and a Raman fiber amplifier connected in sequence, wherein the fiber amplifier is used to adjust the power of the optical pulse sequence carrying the obtained information, and the Raman fiber amplifier is used to increase The information capacity and transmission distance that can be transmitted in optical fiber.
作为本发明再进一步的方案：所述预处理单元包括依次连接的：As a further solution of the present invention: the preprocessing unit includes sequentially connected:
信号放大单元，用于对信号进行放大处理；The signal amplification unit is used to amplify the signal;
整形滤波单元，用于放大后的信号进行整形滤波，以保证信号的平滑；Shaping and filtering unit, used for shaping and filtering the amplified signal to ensure the smoothness of the signal;
解码单元，用于对信号进行解码，获得铁路信号系统设备的电气特性信息，和/或，状态信息；以及地址信息；The decoding unit is used to decode the signal to obtain electrical characteristic information of railway signaling system equipment, and/or, status information; and address information;
数据输出单元，将解码得到的信息输出给终端设备。The data output unit outputs the decoded information to the terminal device.
作为本发明再进一步的方案：所述终端设备包括：As a further solution of the present invention: the terminal equipment includes:
显示模块，用于对得到的信息进行显示，该信息包括铁路信号系统设备的电气特性信息，和/或，状态信息；以及地址信息。The display module is used to display the obtained information, the information includes electrical characteristic information of railway signaling system equipment, and/or status information; and address information.
作为本发明再进一步的方案：所述终端设备还包括：As a further solution of the present invention: the terminal device also includes:
声光报警模块，用于在异常出现时发出声光报警；The sound and light alarm module is used to send out sound and light alarms when abnormalities occur;
异常日志生成模块，用于生成关于异常的日志，并进行存储，且在接收指令后被调用。The exception log generation module is used to generate and store exception logs, and is invoked after receiving instructions.
与现有技术相比，本发明的有益效果是：针对铁路信号采集和传输中存在的问题，其可对信息进行加密和压缩，减少其所占用的通道容量和提升保密性能，并且通过传输单元的设计，可以提升光纤中可传输的信息容量和传输距离，保证了信号传输的效果，其实现了基于此多路光纤通信的数据采集和分析检测，实现在铁路信号采集和处理监控方面的自动化高效监测。Compared with the prior art, the beneficial effect of the present invention is: for the problems existing in railway signal collection and transmission, it can encrypt and compress the information, reduce the occupied channel capacity and improve the confidentiality performance, and pass the transmission unit The design can improve the information capacity and transmission distance that can be transmitted in the optical fiber, and ensure the effect of signal transmission. It realizes the data acquisition, analysis and detection based on this multi-channel optical fiber communication, and realizes the automation of railway signal acquisition, processing and monitoring. Efficient monitoring.
附图说明Description of drawings
图1为一种基于多路光纤通信的铁路信号监测系统的控制原理图。Figure 1 is a control schematic diagram of a railway signal monitoring system based on multi-channel optical fiber communication.
图2为一种基于多路光纤通信的铁路信号监测系统中预处理单元的控制原理图。Fig. 2 is a control principle diagram of a preprocessing unit in a railway signal monitoring system based on multi-channel optical fiber communication.
图3为一种基于多路光纤通信的铁路信号监测系统中防雷模块的控制原理图。Fig. 3 is a control schematic diagram of a lightning protection module in a railway signal monitoring system based on multi-channel optical fiber communication.
图中：100-数据采集模块、101-赋址模块、200-光发射源、300-压缩模块、400-传输单元、401-光纤放大器、402-拉曼光纤放大器、500-光端机、600-预处理单元、601-信号放大单元、602-整形滤波单元、603-解码单元、604-数据输出单元、700-终端设备、701-声光报警模块、702-显示模块、703-异常日志生成模块、800-防雷模块、801-分线器、802-汇流条、803-地线断接装置。In the figure: 100-data acquisition module, 101-addressing module, 200-optical emission source, 300-compression module, 400-transmission unit, 401-fiber amplifier, 402-Raman fiber amplifier, 500-optical terminal, 600-pre Processing unit, 601-signal amplification unit, 602-shaping filter unit, 603-decoding unit, 604-data output unit, 700-terminal equipment, 701-sound and light alarm module, 702-display module, 703-abnormal log generation module, 800-lightning protection module, 801-distributor, 802-bus bar, 803-ground disconnection device.
具体实施方式Detailed ways
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本实施例公开的一些方面相一致的装置和方法的例子。Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the presently disclosed embodiments as recited in the appended claims.
实施例1Example 1
请参阅图1～3，本发明实施例中，一种基于多路光纤通信的铁路信号监测系统，包括：数据采集模块100，设置有多组，用于采集铁路信号系统设备的电气特性信息，和/或，状态信息，并且此处，本实施例还公开了赋址模块101，用于为采集到的信息关联唯一可识别的地址信息，所述地址信息用于关联对应数据采集模块100，在发生故障时，依据该信息实现寻址操作，这里的地址信息就相当于是对应数据采集模块100的编号，在异常情况发生时，依据该编号能迅速的找到异常位置点，有助于事故的快速定位和处理；光发射源200，设置有多组，与数据采集模块100通信，用于将数据采集模块100采集到的信息加载到光脉冲上；传输单元400，设置有多组，用于对光信号进行传输；光端机500，与传输单元400连接，用于接收传输单元400传输来的光信号；预处理单元600，对光信号进行预处理，得到多路数据采集模块100得到的信息以及关于该信息的地址信息，并将其输出给终端设备700，将监测结果进行显示。Please refer to FIGS. 1 to 3. In an embodiment of the present invention, a railway signal monitoring system based on multi-channel optical fiber communication includes: a data acquisition module 100, which is provided with multiple groups for collecting electrical characteristic information of railway signal system equipment, And/or, status information, and here, this embodiment also discloses an addressing module 101, which is used to associate uniquely identifiable address information with the collected information, and the address information is used to associate the corresponding data collection module 100, When a fault occurs, the addressing operation is implemented based on this information. The address information here is equivalent to the serial number of the corresponding data acquisition module 100. When an abnormal situation occurs, the abnormal location point can be quickly found according to the serial number, which is helpful for accident detection. Fast positioning and processing; the light emitting source 200 is provided with multiple groups, and communicates with the data acquisition module 100, and is used to load the information collected by the data acquisition module 100 onto the optical pulse; the transmission unit 400 is provided with multiple groups, used for The optical signal is transmitted; the optical transceiver 500 is connected to the transmission unit 400 for receiving the optical signal transmitted by the transmission unit 400; the preprocessing unit 600 preprocesses the optical signal to obtain the information obtained by the multi-channel data acquisition module 100 and The address information about the information is output to the terminal device 700, and the monitoring results are displayed.
进一步的来说，还包括压缩模块300，用于在信息进入到光发射源200前，所述信息经过压缩模块300压缩处理，用于减少其所占用的通道容量，更能提升传输的信号量，非常契合铁路信号信息量大且繁杂的特性。Further, it also includes a compression module 300, which is used to compress the information before the information enters the optical emission source 200, so as to reduce the channel capacity occupied by it and increase the amount of transmitted signals. , which is very suitable for the large and complicated characteristics of railway signals.
进一步的来说，所述传输单元400包括依次连接的光纤放大器401和拉曼光纤放大器402，其中，光纤放大器401用于将承载有所得信息的光脉冲序列进行功率调整，拉曼光纤放大器402用于增加光纤中可传输的信息容量和传输距离，众所周知，拉曼光纤放大器402取代了传统的光-电-光中继方式，实现一根光纤中多路光信号的同时放大，极大增加了光纤中可传输的信息容量和输距离。Further, the transmission unit 400 includes an optical fiber amplifier 401 and a Raman optical fiber amplifier 402 connected in sequence, wherein the optical fiber amplifier 401 is used to adjust the power of the optical pulse sequence carrying the obtained information, and the Raman optical fiber amplifier 402 is used for power adjustment. In order to increase the information capacity and transmission distance that can be transmitted in the optical fiber, as we all know, the Raman fiber amplifier 402 replaces the traditional optical-electrical-optical relay mode, and realizes the simultaneous amplification of multiple optical signals in one optical fiber, which greatly increases the The information capacity and transmission distance that can be transmitted in optical fiber.
由于在实际应用时，数据采集模块100大多是在通讯柜中，存在雷击隐患，因此，还包括连接室内外信号线缆的分线器801，所述分线器801上连接有对信号线缆进行雷电防护的防雷模块800和对信号线缆进行采集的数据采集模块100，所述防雷模块800与分线器801连接，分线器801的分别与处于通讯柜内的数据采集模块100和室内的光发射源200连接，通讯柜内还安装有与地线断接装置803连接的汇流条802，作为优选的，所述汇流条802包括横向汇流条和纵向汇流条。Since in actual application, the data acquisition module 100 is mostly in the communication cabinet, there is a potential lightning strike, therefore, it also includes a splitter 801 for connecting indoor and outdoor signal cables, and a pair of signal cables are connected to the splitter 801 A lightning protection module 800 for lightning protection and a data acquisition module 100 for collecting signal cables, the lightning protection module 800 is connected to a splitter 801, and the splitter 801 is connected to the data acquisition module 100 in the communication cabinet respectively It is connected to the light emitting source 200 in the room, and a bus bar 802 connected to the ground wire disconnecting device 803 is installed in the communication cabinet. Preferably, the bus bar 802 includes a horizontal bus bar and a vertical bus bar.
所述分线器801矩阵排列设置，并在同一行设置一横向汇流条连接该行的防雷模块800的地线，或者同一列设置一纵向汇流条连接该列防雷模块800的地线，所述横向或纵向汇流条汇集在一起形成防雷总地线，在总地线上设置有地线断接装置803。The splitters 801 are arranged in a matrix, and a horizontal bus bar is arranged in the same row to connect the ground wires of the lightning protection modules 800 in the row, or a longitudinal bus bar is arranged in the same column to connect the ground wires of the lightning protection modules 800 in the row, The horizontal or vertical bus bars are gathered together to form a general ground wire for lightning protection, and a ground wire disconnecting device 803 is arranged on the general ground wire.
实施例2Example 2
请参阅图1～2，本发明实施例中，一种基于多路光纤通信的铁路信号监测系统，所述所述预处理单元600包括依次连接的：信号放大单元601，用于对信号进行放大处理；整形滤波单元602，用于放大后的信号进行整形滤波，以保证信号的平滑；解码单元603，用于对信号进行解码，获得铁路信号系统设备的电气特性信息，和/或，状态信息；以及地址信息，由于上述实施例中对信息进行了赋址和压缩操作，以进行加密和减少通道占用率，因此，在此处设计了解码单元603，用于进行加密和解压，使其可以被终端设备700所识别；数据输出单元604，将解码得到的信息输出给终端设备700。Please refer to FIGS. 1-2. In an embodiment of the present invention, a railway signal monitoring system based on multi-channel optical fiber communication, the preprocessing unit 600 includes a signal amplification unit 601 connected in sequence, for amplifying the signal processing; the shaping and filtering unit 602 is used for shaping and filtering the amplified signal to ensure the smoothness of the signal; the decoding unit 603 is used for decoding the signal to obtain electrical characteristic information of railway signal system equipment, and/or state information and address information, since the information has been assigned and compressed in the above-mentioned embodiment to encrypt and reduce the channel occupancy rate, therefore, a decoding unit 603 is designed here for encrypting and decompressing, so that it can identified by the terminal device 700; the data output unit 604 outputs the decoded information to the terminal device 700.
进一步的来说，所述终端设备700包括：显示模块702，用于对得到的信息进行显示，该信息包括铁路信号系统设备的电气特性信息，和/或，状态信息；以及地址信息。当然，为了及时的提醒人员异常情况的发生，本实施例还公开了声光报警模块701和异常日志生成模块703，其中声光报警模块701用于在异常出现时发出声光报警；异常日志生成模块703，用于生成关于异常的日志，并进行存储，且在接收指令后被调用。Further, the terminal device 700 includes: a display module 702, configured to display the obtained information, the information includes electrical characteristic information and/or status information of railway signaling system equipment; and address information. Of course, in order to promptly remind personnel of the occurrence of abnormal situations, this embodiment also discloses an audible and visual alarm module 701 and an abnormal log generation module 703, wherein the audible and visual alarm module 701 is used to send an audible and visual alarm when an abnormality occurs; Module 703, configured to generate and store exception logs, and be invoked after receiving instructions.
需要特别说明的是，本技术方案中，针对铁路信号采集和传输中存在的问题，其可对信息进行加密和压缩，减少其所占用的通道容量和提升保密性能，并且通过传输单元的设计，可以提升光纤中可传输的信息容量和传输距离，保证了信号传输的效果，其实现了基于此多路光纤通信的数据采集和分析检测，实现在铁路信号采集和处理方面的自动化高效监测。It should be noted that in this technical solution, in view of the problems existing in the collection and transmission of railway signals, it can encrypt and compress the information, reduce the channel capacity it occupies and improve the confidentiality performance, and through the design of the transmission unit, It can improve the information capacity and transmission distance that can be transmitted in the optical fiber, and ensure the effect of signal transmission. It realizes data collection, analysis and detection based on this multi-channel optical fiber communication, and realizes automatic and efficient monitoring in railway signal collection and processing.
本领域技术人员在考虑说明书及实施例处的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由权利要求指出。Other embodiments of the present disclosure will readily occur to those skilled in the art from consideration of the disclosure at the specification and examples. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered exemplary only, with the true scope and spirit of the disclosure indicated by the appended claims.
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683052.6ACN110450824A (en) | 2019-07-26 | 2019-07-26 | A kind of railway signal monitoring system based on multi-channel optical fibre communication |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683052.6ACN110450824A (en) | 2019-07-26 | 2019-07-26 | A kind of railway signal monitoring system based on multi-channel optical fibre communication |
| Publication Number | Publication Date |
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| CN110450824Atrue CN110450824A (en) | 2019-11-15 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910683052.6APendingCN110450824A (en) | 2019-07-26 | 2019-07-26 | A kind of railway signal monitoring system based on multi-channel optical fibre communication |
| Country | Link |
|---|---|
| CN (1) | CN110450824A (en) |
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| CN101712328A (en)* | 2009-12-01 | 2010-05-26 | 西南交通大学 | Matched fiber grating based axle-counting device of high-speed railway |
| CN101830237A (en)* | 2010-01-20 | 2010-09-15 | 黑龙江大学 | Safe and real-time detection system and method of heavy haulage lines based on optical fiber sensor network |
| CN101863278A (en)* | 2010-06-03 | 2010-10-20 | 西南交通大学 | High-speed railway axle counting device based on grating reflection spectrum broadening |
| CN202210676U (en)* | 2011-09-30 | 2012-05-02 | 株洲普天中普防雷科技有限公司 | Multiport communication radio frequency lightning protection device |
| CN102903223A (en)* | 2012-08-09 | 2013-01-30 | 中国电力科学研究院 | High-speed transmission system of extra-high voltage wide band domain corona current signal |
| CN203352601U (en)* | 2013-07-19 | 2013-12-18 | 国网青海省电力公司信息通信公司 | Light transmission system in high altitude severe environment |
| CN104228882A (en)* | 2014-09-09 | 2014-12-24 | 宁波思高信通科技有限公司 | Outdoor track circuit integrated monitoring system and method |
| CN106323443A (en)* | 2016-08-31 | 2017-01-11 | 威海北洋光电信息技术股份公司 | Long-distance distributed optical fiber vibration monitoring device and realization method thereof |
| CN106877931A (en)* | 2017-04-19 | 2017-06-20 | 成都市宏山科技有限公司 | Digital Optical Terminal based on OWDM |
| CN106985879A (en)* | 2017-04-18 | 2017-07-28 | 卡斯柯信号有限公司 | A kind of train occupation detecting system and method |
| CN207374427U (en)* | 2017-10-31 | 2018-05-18 | 中铁第四勘察设计院集团有限公司 | A kind of Riding-type Monorail Switch optic-fiber monitoring system |
| CN211075919U (en)* | 2019-07-26 | 2020-07-24 | 深圳市科安达轨道交通技术有限公司 | Railway signal monitoring system based on multi-channel optical fiber communication |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118558Y (en)* | 2007-11-05 | 2008-09-17 | 王东权 | Short wave digital broadband transmission network device |
| CN201303332Y (en)* | 2008-11-13 | 2009-09-02 | 上海鸣啸实业发展有限公司 | Vehicle-mounted comprehensive information device based on IP platform |
| CN101712328A (en)* | 2009-12-01 | 2010-05-26 | 西南交通大学 | Matched fiber grating based axle-counting device of high-speed railway |
| CN101830237A (en)* | 2010-01-20 | 2010-09-15 | 黑龙江大学 | Safe and real-time detection system and method of heavy haulage lines based on optical fiber sensor network |
| CN101863278A (en)* | 2010-06-03 | 2010-10-20 | 西南交通大学 | High-speed railway axle counting device based on grating reflection spectrum broadening |
| CN202210676U (en)* | 2011-09-30 | 2012-05-02 | 株洲普天中普防雷科技有限公司 | Multiport communication radio frequency lightning protection device |
| CN102903223A (en)* | 2012-08-09 | 2013-01-30 | 中国电力科学研究院 | High-speed transmission system of extra-high voltage wide band domain corona current signal |
| CN203352601U (en)* | 2013-07-19 | 2013-12-18 | 国网青海省电力公司信息通信公司 | Light transmission system in high altitude severe environment |
| CN104228882A (en)* | 2014-09-09 | 2014-12-24 | 宁波思高信通科技有限公司 | Outdoor track circuit integrated monitoring system and method |
| CN106323443A (en)* | 2016-08-31 | 2017-01-11 | 威海北洋光电信息技术股份公司 | Long-distance distributed optical fiber vibration monitoring device and realization method thereof |
| CN106985879A (en)* | 2017-04-18 | 2017-07-28 | 卡斯柯信号有限公司 | A kind of train occupation detecting system and method |
| CN106877931A (en)* | 2017-04-19 | 2017-06-20 | 成都市宏山科技有限公司 | Digital Optical Terminal based on OWDM |
| CN207374427U (en)* | 2017-10-31 | 2018-05-18 | 中铁第四勘察设计院集团有限公司 | A kind of Riding-type Monorail Switch optic-fiber monitoring system |
| CN211075919U (en)* | 2019-07-26 | 2020-07-24 | 深圳市科安达轨道交通技术有限公司 | Railway signal monitoring system based on multi-channel optical fiber communication |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20191115 |