CN101159446B - Semi-automatic obturation information transmission change-over device dedicated for railway - Google Patents
Semi-automatic obturation information transmission change-over device dedicated for railway Download PDFInfo
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- CN101159446B CN101159446B CN2007101901310A CN200710190131A CN101159446B CN 101159446 B CN101159446 B CN 101159446B CN 2007101901310 A CN2007101901310 A CN 2007101901310A CN 200710190131 A CN200710190131 A CN 200710190131A CN 101159446 B CN101159446 B CN 101159446B
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Abstract
The invention discloses a railway-dedicated semiautomatic device for transmitting and converting blocked information, which at least comprises two semiautomatic blocking machines situated along the railway between two stations and one section therebetween. The two semiautomatic blocking machines are equipped with a transmission device connected thereto respectively; optical fiber cable and electric cable are connected in parallel between the first transmission device and the second transmission device. The optical fiber cable comprises double-audio main channel, double-audio backup channel and Ethernet channel; the transmission device includes power module, management module and transmission model. The invention adopts electric cable and optical fiber cable to transmit blocking signal simultaneously, blocking signal is transmitted mainly by optical cable to achieve the transition between electrical signal and digital signal. When optical cable is broken down, the device can be automatically switched to transmit signal by electric cable, in addition, the device is capable of detecting integrity of electric cable in optical cable mode, once happening breakdown, the device can alarm immediately.
Description
Technical field:
The present invention relates to the information carrying means on the railway communication device, specifically is a kind of railway 64D semi-automatic obturation information transmission change-over device that is applied to.
Background technology
The reliability of Source of Railway Communication and Signalling transmission just is the key factor that can railways means normal operation, existing semiautomatic block message transmission is based on cable transmission, because factors such as site operation, incidents such as frequent generation cable is destroyed, thereby cause the signal can not normal transmission, have a strong impact on the railway normal transport, bring serious economy loss to country.
Existing block signal transmission conversion equipment is simple relatively, only transmit with the two-way signal, promptly based on audio frequency 64K, when voice-grade channel breaks down, switch to existing cable and carry out the signal transmission, to the integrity detection of cable, do not open circuit as cable, a series of contingent faults such as cable short circuit are checked.
Summary of the invention
Technical problem to be solved by this invention provides a kind of semi-automatic obturation information transmission change-over device dedicated for railway with high reliability, this device adopts multichannel (four tunnel: cable passage, the audio frequency main channel, audio frequency is equipped with passage, ethernet channel) the safe and reliable transmission of signal is guaranteed in backup and redundancy check.
For realizing purpose of the present invention, semi-automatic obturation information transmission change-over device dedicated for railway of the present invention, at least comprise and be positioned at along the line and two semi-automatic block machines separated by a distance of railway, described two semi-automatic block machines are furnished with a transmission equipment that is attached thereto respectively, be parallel with optical cable and cable between first transmission equipment and second transmission equipment, described optical cable comprises double-tone main channel frequently, double-tone is equipped with passage and ethernet channel frequently, described transmission equipment comprises power module, administration module and transport module, transport module is connected with administration module and controlled by it, transport module connects semi-automatic block machine respectively, cable and optical cable are used for the relay transmission signal, and power module is connected with transport module with administration module respectively provides electric power.
Above-mentioned administration module core is the administration module microprocessor, and this administration module microprocessor through bus is connected with pulse clock circuit, administration module programmable logic device, multimedia interface, administration module memory, RS482, RS232 and Ethernet interface respectively.
Above-mentioned transport module is divided into cable interface module unit and optical cable interface module.
Wherein, the cable interface module unit comprises the interface module microprocessor, and it is by interface driver module signal modulator in parallel and demodulator of PM signal PM, and the stube cable channel switching module is used for gating cable passage or semi-automatic block machine afterwards.Between interface module microprocessor and cable passage handover module, can also be connected to the cable check module, be used for the working condition of detection streamer.
The optical cable interface module comprises optical cable interface microprocessor, it connects optical cable interface memory, optical cable interface programmable logic device, optical cable interface driver module and double-tone main line, double-tone frequency siding and ethernet line frequently respectively by bus, and double-tone is the respective channel of main line, double-tone frequency siding and ethernet line access optical cable frequently.
The present invention adopts cable and optical cable to transmit block signal simultaneously, is the main block signal that transmits at ordinary times with the optical cable, realize the signal of telecommunication-＞digital signal-＞conversion of the signal of telecommunication.When optical cable breaks down, can automatically switch to existing cable and carry out the signal transmission, under the optical cable pattern, the integrality to cable detects in real time in addition, in case find fault, alarms at once.This device adopts four road backup modes, be that cable passage, audio frequency main channel, audio frequency are equipped with passage and ethernet channel, selection to passage can be configured, simple configuration is cable passage+audio frequency main channel, it can solve the defective that the single transmission of semiautomatic block information cable passage is destroyed easily effectively, makes the signal transmission more safe and reliable.
Description of drawings
Fig. 1 is a schematic diagram of the present invention;
Fig. 2 is the comparison diagram of block cabinet signal and transmission equipment signal;
Fig. 3 is the structural representation of transmission equipment;
Fig. 4 is the structural representation of administrative unit in the transmission equipment;
The structural representation of cable interface unit in Fig. 5 transmission equipment;
The structural representation of optical cable interface unit in Fig. 6 transmission equipment;
Fig. 7 is a power module schematic diagram in the transmission equipment;
Fig. 8 is the front panel of transmission equipment;
Fig. 9 is the rear board of transmission equipment.
Embodiment
As shown in Figure 1, be a specific embodiment of the present invention.
Semi-automatic obturation information transmission change-over device dedicated for railway of the present invention, be applied on railway two 64D semi-automatic block machines along the line and separated by a distance, it has increased a supporting transmission equipment for every semi-automatic block machine, on the cable basis of original connection semi-automatic block machine, also be parallel with an optical cable between two transmission equipments, this optical cable can comprise double-tone main channel frequently, and double-tone is equipped with passage and ethernet channel frequently.Fig. 2 is the comparison diagram of block cabinet signal and transmission equipment signal, and in order to satisfy the transmission requirement of railway signal, delay requirement is less than 300ms.
As shown in Figure 3, transmission equipment mainly comprises power module, administration module and transport module three parts, transport module is connected with administration module and controlled by it, transport module connects semi-automatic block machine, cable and optical cable more respectively and is used for the relay transmission signal, and power module is connected with transport module with administration module respectively provides electric power.
As shown in Figure 4, the administration module core is the administration module microprocessor, and this administration module microprocessor through bus is connected with pulse clock circuit, administration module programmable logic device, multimedia interface, administration module memory, RS482, RS232 and Ethernet interface respectively.Its function is: managing electrical power module and transmission unit, and have network management interface (Ethernet) and local debugging interface (RS232), and man-machine interface (LED, KEY) can be set in addition, realize remote diagnosis, remote maintenance, online upgrading.
Transport module is divided into cable interface module unit and optical cable interface module.
As shown in Figure 5, the cable interface module unit comprises the interface module microprocessor, it is by interface driver module signal modulator in parallel and demodulator of PM signal PM, the stube cable channel switching module is used for gating cable passage or semi-automatic block machine afterwards, is connected to the cable check module between interface module microprocessor and cable passage handover module.Its function is: realize the switching of optical cable and cable, cable status is monitored in the modulation and demodulation of 64D semi-automatic block machine signal in real time, with the communication of optical cable interface unit.
As shown in Figure 6, the optical cable interface module comprises optical cable interface microprocessor, it connects optical cable interface memory, optical cable interface programmable logic device, optical cable interface driver module and double-tone main line, double-tone frequency siding and ethernet line frequently respectively by bus, and double-tone is the respective channel of main line, double-tone frequency siding and ethernet line access optical cable frequently.Its function is: receive the order of 64D semi-automatic block machine, and by double-tone frequently and Ethernet send information to fiber channel, receive fiber channel information, send to the 64D semi-automatic block machine and order, monitor the fiber channel operating state in real time, with the cable interface unit communications.
As Fig. 3 and shown in Figure 7, power supply of the present invention can adopt double copies, and adopts Switching Power Supply, its input: DC-48V; Output :+5V, ± 12V, ± 36V, and possess overvoltage, overcurrent and short-circuit protection function support duplicate supply stand-by heat intelligent power module (detection input, output voltage; Input current; Temperature) function such as.Fig. 8 and Fig. 9 are respectively the front and back panels of transmission equipment.
The running parameter of present embodiment:
1.64D block cabinet input
1) 64D block cabinet signal condition
● the amplitude Threshold detection
● filtering
● photoelectricity is isolated
2) 64D block cabinet signal sampling
● the sampling period: 5ms
● go the time of trembling: (0 ~ 20) * 5ms
2.64D signal optical cable transmission
1) transmission channel: double-tone is (master), double-tone frequency (being equipped with) and Ethernet frequently
2) transmission medium: optical fiber
3) transmission cycle:＜100ms
4) control strategy
● send: triple channel sends simultaneously
● receive: triple channel all receives, and confirms order in proper order by double-tone frequency (master)＞double-tone frequency (being equipped with)＞Ethernet
● detect: after each passage receives order, answer confirmation immediately, realize ordering and return to school and the passage measuring ability
3.64D block cabinet control
1) control element: electronic relay
2) control strategy: watchdog technique, locking, return to school
3) fault alarm
4.64D cable passage transmission information
In physical layer the 64D block cabinet is connected with cable passage, realizes 64D block cabinet message transmission
5. channel monitoring and switching
1) fiber channel monitoring
● by message response mode monitoring fiber channel, comprise double-tone (master), double-tone frequency (being equipped with) and Ethernet frequently
● monitoring in real time
2) cable passage monitoring
● by measuring cable loop resistance monitoring cable passage
● monitor cable passage in real time
3) control strategy
● when three data passages of fiber channel were all working properly, fiber channel was normal; When having at least a data passage working properly, fiber channel also is considered as normally, but the reminder-data channel alarm; When three data passages are all undesired, the fiber channel fault;
● fiber channel and cable passage all just often use fiber channel;
● the fiber channel fault automatically switches to cable passage;
● when using cable passage, it is normal that fiber channel recovers, and automatically switches to fiber channel;
● passage is no more than 300ms switching time
Claims (4)
1. semi-automatic obturation information transmission change-over device dedicated for railway, at least comprise and be positioned at along the line and two semi-automatic block machines separated by a distance of railway, it is characterized in that: described two semi-automatic block machines are furnished with a transmission equipment that is attached thereto respectively, be parallel with optical cable and cable between first transmission equipment and second transmission equipment, described optical cable comprises double-tone main channel frequently, double-tone is equipped with passage and ethernet channel frequently, described transmission equipment comprises power module, administration module and transport module, transport module is connected with administration module and controlled by it, transport module connects semi-automatic block machine respectively, cable and optical cable are used for relay transmission information, and power module is connected with transport module with administration module respectively provides electric power; Adopt cable and optical cable to transmit block signal simultaneously, be the main block signal that transmits at ordinary times with the optical cable, realize the signal of telecommunication-＞digital signal-＞conversion of the signal of telecommunication, when optical cable breaks down, can automatically switch to existing cable and carry out the signal transmission, under the optical cable pattern, the integrality to cable detects in real time in addition, in case the discovery fault is alarmed at once.
2. semi-automatic obturation information transmission change-over device dedicated for railway according to claim 1, it is characterized in that: described administration module core is the administration module microprocessor, and this administration module microprocessor through bus is connected with pulse clock circuit, administration module programmable logic device, multimedia interface, administration module memory, RS482, RS232 and Ethernet interface respectively.
3. semi-automatic obturation information transmission change-over device dedicated for railway according to claim 1 and 2 is characterized in that: described transport module is divided into cable interface module unit and optical cable interface module.
4. semi-automatic obturation information transmission change-over device dedicated for railway according to claim 3, it is characterized in that: the optical cable interface module comprises optical cable interface microprocessor, it connects optical cable interface memory, optical cable interface programmable logic device, optical cable interface driver module and double-tone main line, double-tone frequency siding and ethernet line frequently respectively by bus, and double-tone is the respective channel of main line, double-tone frequency siding and ethernet line access optical cable frequently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101901310A CN101159446B (en) | 2007-11-15 | 2007-11-15 | Semi-automatic obturation information transmission change-over device dedicated for railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101901310A CN101159446B (en) | 2007-11-15 | 2007-11-15 | Semi-automatic obturation information transmission change-over device dedicated for railway |
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| Publication Number | Publication Date |
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| CN101159446A CN101159446A (en) | 2008-04-09 |
| CN101159446B true CN101159446B (en) | 2011-09-14 |
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| CN2007101901310A Active CN101159446B (en) | 2007-11-15 | 2007-11-15 | Semi-automatic obturation information transmission change-over device dedicated for railway |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945023B (en) * | 2012-10-18 | 2014-11-26 | 上海亨钧科技有限公司 | Working method of railway signal terminal based on optical fiber communication |
| CN102963395B (en) * | 2012-12-11 | 2015-03-04 | 南京泰通科技有限公司 | Railway semi-automatic block information system capable of monitoring in real time and working method thereof |
| CN112152665B (en) * | 2020-09-28 | 2021-07-13 | 北京锐为信科技有限公司 | Optical block remote switching system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053037A (en) * | 1991-02-12 | 1991-07-17 | 铁道部科学研究院通信信号研究所 | Long rail blocking system |
| CN2188526Y (en) * | 1993-09-28 | 1995-02-01 | 铁道部第一勘测设计院 | Interlocking device between railway long-track stations |
-
2007
- 2007-11-15 CN CN2007101901310A patent/CN101159446B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053037A (en) * | 1991-02-12 | 1991-07-17 | 铁道部科学研究院通信信号研究所 | Long rail blocking system |
| CN2188526Y (en) * | 1993-09-28 | 1995-02-01 | 铁道部第一勘测设计院 | Interlocking device between railway long-track stations |
Non-Patent Citations (3)
| Title |
|---|
| 刘芳.实现信号半自动闭塞光通道传输的方案.《铁道通信信号》.2006,第42卷(第4期),第17页. * |
| 盛丽霞，蔡建辉.铁路专用通讯与半自动闭塞信号光缆传输网.《江西冶金》.2002,第22卷(第5期),第39-41页. * |
| 肖运勇.利用光缆传输继电半自动闭塞信号.《铁道通信信号》.2003,第39卷(第7期),第14页. * |
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| CN101159446A (en) | 2008-04-09 |
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