CN102608475A - Track circuit electrical characteristic monitoring system - Google Patents
Track circuit electrical characteristic monitoring system Download PDFInfo
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- CN102608475A CN102608475A CN201210100018XA CN201210100018A CN102608475A CN 102608475 A CN102608475 A CN 102608475A CN 201210100018X A CN201210100018X A CN 201210100018XA CN 201210100018 A CN201210100018 A CN 201210100018A CN 102608475 A CN102608475 A CN 102608475A
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Abstract
A track circuit electrical characteristic monitoring system comprises a steel rail and a track circuit used for transmitting information between a track and a main machine; the monitoring system also comprises m*n monitoring branch machines connected with the main machine by m pairs of solid loops; each monitoring branch machine is identical in structure and mainly consists of a processing unit, a current sampling unit, a track surface voltage sampling unit, a current-limiting resistance and voltage sampling unit, a communication module and a power supply changeover module; the main machine is responsible for managing the monitoring branch machines, establishing communication links with the branch machines in a polling mode for data communication, analyzing and processing the received monitoring information and data, displaying the information and data in figures and curves, and giving an alarm when the parameters are beyond the limits. According to the track circuit electrical characteristic monitoring system, the main machine is connected with the m*n branch machines hooked with the m pairs of solid loops, the real-time monitoring on the electrical characteristics of the track circuit is realized, the system structure is simple, the design is scientific, safety and reliability are achieved, the investment is saved, the efficiency is high, and further, the railway transportation efficiency can be improved, and the traffic safety is ensured.
Description
Technical field
[0001] the present invention relates to the electric monitoring of railway track circuit field, relate in particular to a kind of track circuit electrical characteristics monitoring system.
Background technology
Utilize the rail of rail track to do that conductor forms, the circuit in order to inspection has or not train, transmits train occupation information and realize the information of transmitting between ground and train is referred to as track circuit.In the daily servicing of railway signal, through to the detection of the electrical specification of track circuit, adjustment to guarantee the normal utilization of track circuit, be the pacing items that guarantees traffic safety, safeguards the driving order.At present, to the electrical specification monitoring of track circuit, only in the Machine Room, carry out indirectly, the detection of the virtual condition at outdoor scene can only be carried out through manual work, the problem of existence:
1. inefficiency;
2. can not realize that continuous on-line detects, can't in time effective preventive means and fault analysis foundation be provided, bring potential safety hazard to the maintainer.
Summary of the invention
The object of the present invention is to provide a kind of track circuit electrical characteristics monitoring system, realize electrical specification on-line monitoring, thereby overcome the existing above-mentioned deficiency of prior art track circuit.
The technical scheme that the present invention takes is: a kind of track circuit electrical characteristics monitoring system; Comprise the m * n platform monitoring unit that real loop line is connected with exchange through m; Every monitoring unit structure is identical, mainly is made up of processing unit, current sampling unit, rail surface voltage sampling unit, current-limiting resistance voltage sample unit, communication module, display module and power transfer module;
The collection terminal of current sampling unit is electrically connected through a current sensor and a track circuit transmission line wherein, and output terminal is connected with processing unit, and its effect is that the rail level current information of track circuit is passed to processing unit;
The collection terminal of rail surface voltage sampling unit is connected with two transmission lines of track circuit, and output terminal is connected with processing unit, and its effect is that track circuit rail surface voltage information is passed to processing unit;
The collection terminal of current-limiting resistance voltage sample unit is connected with track circuit current-limiting resistance two ends, and output terminal is connected with processing unit, and its effect is that track circuit current-limiting resistance information of voltage is passed to processing unit;
Communication module is connected with processing unit, and its effect one is the instruction of accepting from exchange, and the 2nd, the monitoring information of treated element analysis being handled according to the requirement of exchange is sent to exchange;
Thereby the effect of power transfer module is with changing from the power supply of exchange to each relevant unit and module working power to be provided;
Processing unit is connected with above-mentioned each module and display module respectively; The effect of processing unit is the carrier frequency frequency, signal frequency of rail surface voltage that above-mentioned each sampling unit is gathered, rail level electric current, current-limiting resistance voltage, track lead state, cab signal, information such as offset frequency is carried out analyzing and processing, will be passed through data or the chart that analyzing and processing forms and intuitively show through display module up and down, and according to the requirement of exchange monitoring information is sent to exchange through communication module;
Exchange is connected with m * n platform monitoring unit real loop line through m; Be responsible for managing, adopt taking turn mode and extension set to set up communication link to monitoring unit; The row data communication of going forward side by side; The monitoring information of receiving monitoring unit and data are carried out analyzing and processing, carry out chart and curve display, and the parameter that transfinites is reported to the police; Realize the playback of historical Monitoring Data as required or further send to host computer;
The span of above-mentioned m and n is: m is the arbitrary integer between 1～10, and n is the arbitrary integer between 1～200.
Its further technical scheme is: said current sampling unit comprises the current sensor and the first shaping amplification module; The effect of current sensor is to gather the rail level current information; The effect of the first shaping amplification module is that the rail level current information that current sensor collects is carried out shaping, amplification, is transferred to processing unit then.
Said rail surface voltage sampling unit comprises second voltage sensor and the second shaping amplification module; The effect one of second voltage sensor is to gather rail surface voltage information; The 2nd, with carrying out electrical isolation between rail surface voltage sampling unit and track circuit; The effect of the second shaping amplification module is that the rail surface voltage information that second voltage biography device collects is carried out shaping, amplification, is transferred to processing unit then.
Said current-limiting resistance voltage sample unit comprises tertiary voltage sensor and the 3rd shaping amplification module; The effect one of tertiary voltage sensor is to gather the current-limiting resistance information of voltage; The 2nd, with carrying out electrical isolation between current-limiting resistance voltage sample unit and track circuit; The effect of the 3rd shaping amplification module be with the tertiary voltage sensor acquisition to the current-limiting resistance information of voltage carry out shaping, amplification, be transferred to processing unit then.
Said processing unit comprises electric current and frequency measurement module, voltage measurement module; The effect of electric current and frequency measurement module is the rail level electric current that collects of analyzing and processing, carrier frequency frequency, signal frequency and information such as offset frequency up and down; The effect of voltage measurement module is information such as the rail surface voltage that collects of analyzing and processing, current-limiting resistance voltage;
The effect of display module is that the data or the chart that form through analyzing and processing are intuitively shown.
Said processing unit is a high-speed microprocessor, realizes communication modulation, demodulation and accomplishes the measurement of voltage, electric current and show function such as control through making software.
Owing to take technique scheme, the present invention's track circuit electrical characteristics monitoring system has following beneficial effect:
1. because the present invention's track circuit electrical characteristics monitoring system can be provided with monitoring unit at any section that the original track circuit need be monitored; Extension set is connected with exchange through real loop line; So can monitor in real time railway track circuit electrical characteristics and locomotive signal information, show, transmission and overload alarm; In time fault analysis foundation and effective maintenance service are provided for the maintainer; Overcome the existing efficient of traditional dependence manual detection low, can not realize the drawback of monitoring in real time, thereby improve rail transportation efficiency greatly, guarantee traffic safety.
2. the sampling of the current sampling unit of the present invention's track circuit electrical characteristics monitoring system, rail surface voltage sampling unit, limit leakage resistance voltage sample unit rail level is all sampled through current sensor and isolating transformer; Acquisition Circuit and original track circuit directly are not electrically connected, so the access of monitoring unit can not influence the operate as normal of original track circuit.
3. the present invention's track circuit electrical characteristics monitoring system, an exchange can be connected the n platform extension set that articulates on the real loop line with m, and system architecture is simple, design science, safety, reliable, reduced investment, efficient height.
Below in conjunction with accompanying drawing and embodiment the technical characterictic of the present invention's track circuit electrical characteristics monitoring system is further described.
Description of drawings
Fig. 1: the track circuit electrical characteristics Fundamentals of Supervisory Systems block diagram of the embodiment of the invention one (1 monitoring unit of 1 pair of real loop line);
Fig. 2: the track circuit electrical characteristics Fundamentals of Supervisory Systems block diagram of the embodiment of the invention two (2 monitoring units of 1 pair of real loop line);
Fig. 3: the track circuit electrical characteristics Fundamentals of Supervisory Systems block diagram of the embodiment of the invention two (1 pair of real loop line n monitoring unit);
Fig. 4: the present invention's track circuit electrical characteristics monitoring system networking block diagram (m is to real loop line m * n monitoring unit);
Fig. 5: original track circuit diagram.
I-exchange, II-real loop line passage, III-monitoring unit, IV-rail, V-track circuit, V 1-current-limiting resistance, V 2-track transformer;
00-processing unit, 01-power frequency measurement module, 02-voltage measurement module, 10-current sampling unit; 11-current sensor, 12-the first shaping amplification module, 20-rail surface voltage sampling unit, 21-the second voltage sensor; 22-the second shaping amplification module, 30-current-limiting resistance voltage sample unit, 31-tertiary voltage sensor, 32-the three shaping amplification module; 40-power transfer module, 50-communication module, 60-display module.
Embodiment
Embodiment one
Referring to accompanying drawing 1; A kind of track circuit electrical characteristics monitoring system; Comprise 1 monitoring unit that is connected with exchange through a pair of real loop line; Monitoring unit is arranged on track circuit need monitor section, and said monitoring unit mainly is made up of processing unit 00, current sampling unit 10, rail surface voltage sampling unit 20, current-limiting resistance voltage sample unit 30, communication module 50, display module 60 and power transfer module 40.
The collection terminal of current sampling unit 10 is electrically connected through a current sensor 11 and a track circuit transmission line wherein, and output terminal is connected with processing unit 00; Said current sampling unit 10 comprises the current sensor 11 and the first shaping amplification module 12; The effect of current sensor 11 is to gather the rail level current information; The effect of the first shaping amplification module 12 is that the rail level current information that current sensor 11 collects is carried out shaping, amplification, is transferred to processing unit then.
Said rail surface voltage sampling unit 20 comprises second voltage sensor 21 and the second shaping amplification module 22; The collection terminal of the rail surface voltage sampling unit 20 i.e. primary side of second voltage sensor 21 is connected with two transmission lines of track circuit; The output terminal of the rail surface voltage sampling unit 20 i.e. output terminal of the second shaping amplification module 22 is connected with processing unit 00; The effect one of second voltage sensor 21 is to gather rail surface voltage information; The 2nd, with carrying out electrical isolation between rail surface voltage sampling unit and track circuit; The effect of the second shaping amplification module 22 is that the rail surface voltage information that second voltage sensor 21 collects is carried out shaping, amplification, is transferred to processing unit then.
Said current-limiting resistance voltage sample unit 30 comprises tertiary voltage sensor 31 and the 3rd shaping amplification module 32; The collection terminal of current-limiting resistance voltage sample unit 30 is that the primary side of tertiary voltage sensor 31 is connected with track circuit current-limiting resistance 60 two ends; The output terminal of the current-limiting resistance voltage sample unit 30 i.e. output terminal of the 3rd shaping amplification module 32 is connected with processing unit 00; The effect one of tertiary voltage sensor 31 is to gather the current-limiting resistance information of voltage; The 2nd, with carrying out electrical isolation between current-limiting resistance voltage sample unit and track circuit; The effect of the 3rd shaping amplification module 32 is that the current-limiting resistance information of voltage that tertiary voltage sensor 31 collects is carried out shaping, amplification, is transferred to processing unit 00 then.
Thereby the effect of power transfer module 40 is with for each relevant unit and module working power being provided from the power source conversion of exchange; The effect of processing unit 00 be rail surface voltage that above-mentioned each sampling unit is gathered, rail level electric current, current-limiting resistance voltage, track lead state, etc. information carry out that the laggard line frequency of front-end processing is measured, the A/D conversion, show and storage; Carry out analyzing and processing, demonstration, and monitoring information is sent to exchange through communication module according to the requirement of exchange;
Said processing unit 00 is connected with above-mentioned each module and display module 60 respectively, and processing unit 00 comprises electric current and frequency measurement module 01, voltage measurement module 02; The effect of electric current and frequency measurement module 01 is the rail level electric current that collects of analyzing and processing, carrier frequency frequency, signal frequency and information such as offset frequency up and down; The effect of voltage measurement module 02 is information such as the rail surface voltage that collects of analyzing and processing, current-limiting resistance voltage; Processing unit 00 intuitively shows through display module with data or the chart of voltage measurement module 02 with the rail level electric current that collects, carrier frequency frequency, signal frequency and information analyses processing back formation such as offset frequency, rail surface voltage, current-limiting resistance voltage up and down through electric current and frequency measurement module 01, and according to the requirement of exchange monitoring information is sent to exchange through communication module;
Said processing unit adopts high-speed microprocessor, realizes communication modulation, demodulation and accomplishes the measurement of voltage, electric current and show function such as control through making software.
Exchange is connected with monitoring unit through real loop line; Be responsible for the monitoring unit row data communication of managing, go forward side by side; The monitoring information and the data of the monitoring unit of receiving are carried out analyzing and processing; Carry out chart and curve display, and the parameter that transfinites is reported to the police, realize the playback of historical Monitoring Data as required or further send to host computer.
It is that transmitting terminal and the other end are the primary track use-pattern (being the fixing mode of using of transmitting terminal and receiving end) of receiving end that present embodiment is used for track circuit one end.
Embodiment two
Referring to accompanying drawing 2; A kind of track circuit electrical characteristics monitoring system; Comprise 2 monitoring units that are connected with exchange through a pair of real loop line; All the extension set with embodiment one is identical for 2 monitoring unit structures, mainly is made up of processing unit 00, current sampling unit 10, rail surface voltage sampling unit 20, current-limiting resistance voltage sample unit 30, communication module 50, display module 60 and power transfer module 40.
Present embodiment be used for the track circuit transmitting terminal with receive single-ended at a time be can the conversion work attitude mode.
Embodiment three
Referring to accompanying drawing 3; A kind of track circuit electrical characteristics monitoring system; Comprise the n platform monitoring unit that is connected with exchange through a pair of real loop line; All the extension set with embodiment one is identical for n platform monitoring unit structure, mainly is made up of processing unit 00, current sampling unit 10, rail surface voltage sampling unit 20, current-limiting resistance voltage sample unit 30, communication module 50, display module 60 and power transfer module 40, and n is the arbitrary integer between 1～200.
Embodiment four
Referring to accompanying drawing 4; A kind of track circuit electrical characteristics monitoring system; Comprise the m * n platform monitoring unit that real loop line is connected with exchange through m, all the extension set with embodiment one is identical for n platform monitoring unit structure, mainly is made up of processing unit 00, current sampling unit 10, rail surface voltage sampling unit 20, current-limiting resistance voltage sample unit 30, communication module 50, display module 60 and power transfer module 40; M is the arbitrary integer between 1～10, and n is the arbitrary integer between 1～200.
In the foregoing description one to embodiment four, exchange provides required power supply through real loop line to monitoring unit, and through the data communication of this reality loop line completion with extension set; Exchange adopts the mode of taking turn to patrol and exhales monitoring unit; Called monitoring unit is replied the back to exchange transmitting supervisory data; Exchange receives the back Monitoring Data is carried out analyzing and processing; The form of pressing chart and curve shows orbital plane voltage, rail level electric current, carrier frequency, offset frequency and signal frequency, and the monitor value that surpasses thresholding is reported to the police.
Relevant explanation of nouns:
Rail surface voltage: transmitting terminal is delivered to the electric signal of transmitting terminal through metallic conductor the locational voltage of rail one end;
Rail level electric current: when transmitting terminal is delivered to the electric signal of transmitting terminal through metallic conductor on the position of rail one end, through the electric current in this metallic conductor;
Current-limiting resistance voltage: the voltage drop at current-limiting resistance two ends;
The carrier frequency frequency: for realizing the long-distance transmissions of information, modulate the signal to above the high frequency, modulated frequency is called carrier frequency;
Signal frequency: the signal frequency that is used to control cab signal;
Offset frequency up and down: the amplitude that the frequency-modulated wave frequency swings up and down.
Principle of work:
The object of the present invention is to provide a kind of track circuit electrical characteristics monitoring system, realize electrical specification on-line monitoring track circuit.
Extension set is through the transmitting terminal of isolation sampling device (current sensor 11 and voltage sensor 21,31) difference acquisition trajectory circuit or various voltages, electric current and the frequency parameter of receiving end; After the shaping amplification; Use high-speed microprocessor to the carrier frequency of the voltage of railway voltage, electric current, current-limiting resistance, cab signal, offset frequency and signal frequency is measured and demodulation up and down, and with various measurement results storages, show.Use software to realize the modulation and the demodulation of communication, realize the data transmission between exchange and extension set.
Exchange is responsible for the management to extension set, collects the various measurement data of extension set, and data are further analyzed, handled, and will measure and analysis result shows through chart; The instruction that receives host computer simultaneously is to the flourishing various data of host computer.
Claims (6)
1. track circuit electrical characteristics monitoring system; It is characterized in that: said monitoring system comprises the m * n platform monitoring unit that real loop line is connected with exchange through m; Every monitoring unit structure is identical, mainly is made up of processing unit (00), current sampling unit (10), rail surface voltage sampling unit (20), current-limiting resistance voltage sample unit (30), communication module (50), display module (60) and power transfer module (40);
The collection terminal of current sampling unit (10) is electrically connected through a current sensor (11) and a track circuit transmission line wherein, and output terminal is connected with processing unit (00), and its effect is that the rail level current information of track circuit is passed to processing unit;
The collection terminal of rail surface voltage sampling unit (20) is connected with two transmission lines of track circuit, and output terminal is connected with processing unit (00), and its effect is that track circuit rail surface voltage information is passed to processing unit;
The collection terminal of current-limiting resistance voltage sample unit (30) is connected with track circuit current-limiting resistance (V 1) two ends, and output terminal is connected with processing unit (00), and its effect is that track circuit current-limiting resistance information of voltage is passed to processing unit;
Communication module (50) is connected with processing unit (00), and its effect one is the instruction of accepting from exchange, and the 2nd, the monitoring information of treated element analysis being handled according to the requirement of exchange is sent to exchange;
Power transfer module (40) thus effect be working power to be provided with changing from the power supply of exchange to each relevant unit and module;
Processing unit (00) is connected with above-mentioned each module and display module (60) respectively; The effect of processing unit (00) is the carrier frequency frequency, signal frequency of rail surface voltage that above-mentioned each sampling unit is gathered, rail level electric current, current-limiting resistance voltage, track lead state, cab signal, information such as offset frequency is carried out analyzing and processing, will be passed through data or the chart that analyzing and processing forms and intuitively show through display module up and down, and according to the requirement of exchange monitoring information is sent to exchange through communication module;
Exchange is connected with m * n platform monitoring unit real loop line through m; Be responsible for managing, adopt taking turn mode and extension set to set up communication link to monitoring unit; The row data communication of going forward side by side; The monitoring information of receiving monitoring unit and data are carried out analyzing and processing, carry out chart and curve display, and the parameter that transfinites is reported to the police; Realize the playback of historical Monitoring Data as required or further send to host computer;
The span of above-mentioned m and n is: m is the arbitrary integer between 1～10, and n is the arbitrary integer between 1～200.
2. according to the said track circuit electrical characteristics of claim 1 monitoring system; It is characterized in that: said current sampling unit (10) comprises the current sensor (11) and the first shaping amplification module (12); The effect of current sensor (11) is to gather the rail level current information; The effect of the first shaping amplification module (12) is that the rail level current information that current sensor (11) collects is carried out shaping, amplification, is transferred to processing unit (00) then.
3. according to claim 1 or 2 said track circuit electrical characteristics monitoring systems; It is characterized in that: said rail surface voltage sampling unit (20) comprises second voltage sensor (21) and the second shaping amplification module (22); The effect one of second voltage sensor (21) is to gather rail surface voltage information; The 2nd, with carrying out electrical isolation between rail surface voltage sampling unit and track circuit; The effect of the second shaping amplification module (22) is that the rail surface voltage information that second voltage biography device (21) collects is carried out shaping, amplification, is transferred to processing unit (00) then.
4. according to the said track circuit electrical characteristics of claim 3 monitoring system; It is characterized in that: said current-limiting resistance voltage sample unit (30) comprises tertiary voltage sensor (31) and the 3rd shaping amplification module (32); The effect one of tertiary voltage sensor (31) is to gather the current-limiting resistance information of voltage; The 2nd, with carrying out electrical isolation between current-limiting resistance voltage sample unit and track circuit; The effect of the 3rd shaping amplification module (32) is that the current-limiting resistance information of voltage that tertiary voltage sensor (31) collects is carried out shaping, amplification, is transferred to processing unit (00) then.
5. according to the said track circuit electrical characteristics of claim 4 monitoring system, it is characterized in that: said processing unit comprises that the effect of electric current and frequency measurement module (01), voltage measurement module (02) electric current and frequency measurement module (01) is the rail level electric current that collects of analyzing and processing, carrier frequency frequency, signal frequency and information such as offset frequency up and down; The effect of voltage measurement module (02) is information such as the rail surface voltage that collects of analyzing and processing, current-limiting resistance voltage.
6. according to the said track circuit electrical characteristics of claim 5 monitoring system, it is characterized in that: said processing unit is a high-speed microprocessor.
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| CN201210100018.XA CN102608475B (en) | 2012-04-08 | 2012-04-08 | Track circuit electrical characteristic monitoring system |
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| CN201210100018.XA CN102608475B (en) | 2012-04-08 | 2012-04-08 | Track circuit electrical characteristic monitoring system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107727988A (en) * | 2017-09-30 | 2018-02-23 | 北京全路通信信号研究设计院集团有限公司 | Track circuit core wire grounding detection device, system and method |
| CN107807325A (en) * | 2017-10-23 | 2018-03-16 | 柳州铁道职业技术学院 | Based on the theoretical railway track circuit reliability analysis system of multimode and its method |
| CN109001613A (en) * | 2018-06-20 | 2018-12-14 | 武汉讯康电子技术有限公司 | A kind of track circuit failure In-circiut tester |
| CN110254471A (en) * | 2018-03-12 | 2019-09-20 | 上海铁鑫电气科技有限公司 | A kind of railway signal track circuit lead wire broken string real-time watch device |
| CN110254476A (en) * | 2018-03-12 | 2019-09-20 | 上海铁鑫电气科技有限公司 | A kind of railway signal track circuit lead wire broken string on-line monitoring equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107727988A (en) * | 2017-09-30 | 2018-02-23 | 北京全路通信信号研究设计院集团有限公司 | Track circuit core wire grounding detection device, system and method |
| CN107727988B (en) * | 2017-09-30 | 2020-02-18 | 北京全路通信信号研究设计院集团有限公司 | Track circuit core wire grounding detection device, system and method |
| CN107807325A (en) * | 2017-10-23 | 2018-03-16 | 柳州铁道职业技术学院 | Based on the theoretical railway track circuit reliability analysis system of multimode and its method |
| CN107807325B (en) * | 2017-10-23 | 2023-11-03 | 柳州铁道职业技术学院 | Railway track circuit reliability analysis system and method based on multi-state theory |
| CN110254471A (en) * | 2018-03-12 | 2019-09-20 | 上海铁鑫电气科技有限公司 | A kind of railway signal track circuit lead wire broken string real-time watch device |
| CN110254476A (en) * | 2018-03-12 | 2019-09-20 | 上海铁鑫电气科技有限公司 | A kind of railway signal track circuit lead wire broken string on-line monitoring equipment |
| CN109001613A (en) * | 2018-06-20 | 2018-12-14 | 武汉讯康电子技术有限公司 | A kind of track circuit failure In-circiut tester |
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