CN102608475B - Track circuit electrical characteristic monitoring system - Google Patents
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- CN102608475B CN102608475B CN201210100018.XA CN201210100018A CN102608475B CN 102608475 B CN102608475 B CN 102608475B CN 201210100018 A CN201210100018 A CN 201210100018A CN 102608475 B CN102608475 B CN 102608475B
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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
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 make conductor composition, have or not train in order to check, transmit train occupation information and realize ground and train between the circuit of transmission of information, be referred to as track circuit.In the daily servicing of railway signal, detection by the electrical specification to track circuit, adjust the normal utilization to guarantee track circuit, be the pacing items that guarantees traffic safety, safeguards driving order.At present, to the electrical specification monitoring of track circuit, only in Machine Room, indirectly carry out, the detection of the virtual condition at outdoor scene can only be by manually carrying out, the problem of existence:
1. inefficiency;
2. can not realize continuous online detection, cannot provide effective preventive means and fault analysis foundation to maintainer in time, bring potential safety hazard.
Summary of the invention
The object of the present invention is to provide a kind of track circuit electrical characteristics monitoring system, realize the electrical specification on-line monitoring to track circuit, thereby overcome the existing above-mentioned deficiency of prior art.
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 real loop line being connected with exchange by m, every monitoring unit structure is identical, is mainly 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 by current sensor and a track circuit transmission line electrical connection 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, according to the requirement of exchange, the monitoring information of treated element analysis processing is sent to exchange;
Thereby the effect of power transfer module is to provide working power by changing from the power supply of exchange as each relevant unit and module;
Processing unit is connected with above-mentioned each module and display module respectively, the effect of processing unit is that the information such as the carrier frequency frequency, signal frequency, upper and lower offset 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 are carried out analyzing and processing, data or the chart of processing by analysis formation are intuitively shown by display module, and according to the requirement of exchange, monitoring information is sent to exchange by communication module;
Exchange is connected with m × n platform monitoring unit real loop line by m, be responsible for monitoring unit to manage, adopt taking turn mode and extension set to set up communication link, the row data communication of going forward side by side, monitoring information and the data analysis processing of monitoring unit will be received, carry out chart and curve and show, and the parameter that transfinites is reported to the police; Realize as required the playback of Historical Monitoring data 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: described current sampling unit comprises current sensor and the first shaping amplification module, the effect of current sensor is to gather rail level current information, the effect of the first shaping amplification module is that the rail level current information that current sensor is collected carries out shaping, amplification, is then transferred to processing unit.
Described 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, will between rail surface voltage sampling unit and track circuit, carry out electrical isolation, the effect of the second shaping amplification module is second voltage to be passed to the rail surface voltage information that device collects carry out shaping, amplification, is then transferred to processing unit.
Described 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 current-limiting resistance information of voltage, the 2nd, will between current-limiting resistance voltage sample unit and track circuit, carry out electrical isolation, the effect of the 3rd shaping amplification module is that the current-limiting resistance information of voltage that tertiary voltage sensor is collected carries out shaping, amplification, is then transferred to processing unit.
Described processing unit comprises electric current and frequency measurement module, voltage measurement module; The effect of electric current and frequency measurement module is the information such as the rail level electric current that collects of analyzing and processing, carrier frequency frequency, signal frequency and upper and lower offset frequency; The effect of voltage measurement module is the information such as rail surface voltage, current-limiting resistance voltage that analyzing and processing collects;
The effect of display module is that data or the chart of processing by analysis formation are intuitively shown.
Described processing unit is high-speed microprocessor, is realized communication modulation, demodulation and is completed the measurement of voltage, electric current and show the functions such as control by making software.
Owing to taking technique scheme, the present invention's track circuit electrical characteristics monitoring system has following beneficial effect:
1. any section that can need to monitor at original track circuit due to the present invention's track circuit electrical characteristics monitoring system arranges monitoring unit, extension set is connected with exchange by real loop line, therefore can carry out Real-Time Monitoring, demonstration, transmission and overload alarm to railway track circuit electrical characteristics and locomotive signal information, in time for maintainer provides fault analysis foundation and effective maintenance service, overcome the drawback that the existing efficiency of traditional dependence manual detection is low, can not realize Real-Time Monitoring, thereby improve greatly rail transportation efficiency, 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 by current sensor and isolating transformer, Acquisition Circuit and original track circuit be directly electrical connection not, therefore the access of monitoring unit can not affect the normal work 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 articulating on real loop line with m, and system architecture is simple, design science, safety, reliably, and reduced investment, efficiency are high.
The technical characterictic of the track circuit electrical characteristics monitoring system below in conjunction with drawings and Examples to the present invention is further described.
Accompanying drawing explanation
Fig. 1: the track circuit electrical characteristics Fundamentals of Supervisory Systems block diagram (1 monitoring unit of 1 pair of real loop line) of the embodiment of the present invention one;
Fig. 2: the track circuit electrical characteristics Fundamentals of Supervisory Systems block diagram (2 monitoring units of 1 pair of real loop line) of the embodiment of the present invention two;
Fig. 3: the track circuit electrical characteristics Fundamentals of Supervisory Systems block diagram (1 pair of real loop line n monitoring unit) of the embodiment of the present invention two;
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, the 12-the first shaping amplification module, 20-rail surface voltage sampling unit, 21-second voltage sensor, the 22-the second shaping amplification module, 30-current-limiting resistance voltage sample unit, 31-tertiary voltage sensor, the 32-the three shaping amplification module, 40-power transfer module, 50-communication module, 60-display module.
Embodiment
Embodiment mono-
Referring to accompanying drawing 1, a kind of track circuit electrical characteristics monitoring system, comprise 1 monitoring unit being connected with exchange by a pair of real loop line, monitoring unit is arranged on track circuit need monitor section, and described monitoring unit is mainly 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 by current sensor 11 and a track circuit transmission line electrical connection wherein, and output terminal is connected with processing unit 00; Described current sampling unit 10 comprises current sensor 11 and the first shaping amplification module 12, the effect of current sensor 11 is to gather rail level current information, the effect of the first shaping amplification module 12 is that the rail level current information that current sensor 11 is collected carries out shaping, amplification, is then transferred to processing unit.
Described rail surface voltage sampling unit 20 comprises second voltage sensor 21 and the second shaping amplification module 22, the collection terminal of rail surface voltage sampling unit 20 is that the primary side of second voltage sensor 21 and two transmission lines of track circuit are connected, 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, will between rail surface voltage sampling unit and track circuit, carry out electrical isolation, the effect of the second shaping amplification module 22 is that the rail surface voltage information that second voltage sensor 21 is collected is carried out shaping, amplify, then be transferred to processing unit.
Described 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 current-limiting resistance information of voltage, the 2nd, will between current-limiting resistance voltage sample unit and track circuit, carry out electrical isolation, the effect of the 3rd shaping amplification module 32 is that the current-limiting resistance information of voltage that tertiary voltage sensor 31 is collected carries out shaping, amplify, then be transferred to processing unit 00.
Thereby the effect of power transfer module 40 is to provide working power by changing from the power supply of exchange as each relevant unit and module; 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, A/D conversion, show and storage, carry out analyzing and processing, demonstration, and according to the requirement of exchange, monitoring information is sent to exchange by communication module;
Described 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 information such as the rail level electric current that collects of analyzing and processing, carrier frequency frequency, signal frequency and upper and lower offset frequency; The effect of voltage measurement module 02 is the information such as rail surface voltage, current-limiting resistance voltage that analyzing and processing collects; Data or chart that processing unit 00 forms after the information analyses such as the rail level electric current collecting, carrier frequency frequency, signal frequency and upper and lower offset frequency, rail surface voltage, current-limiting resistance voltage being processed by electric current and frequency measurement module 01 and voltage measurement module 02 intuitively show by display module, and according to the requirement of exchange, monitoring information are sent to exchange by communication module;
Described processing unit adopts high-speed microprocessor, is realized communication modulation, demodulation and is completed the measurement of voltage, electric current and show the functions such as control by making software.
Exchange is connected with monitoring unit by real loop line, be responsible for the monitoring unit row data communication that manages, goes forward side by side, by the monitoring information of the monitoring unit of receiving and data analysis processing, carrying out chart and curve shows, and the parameter that transfinites is reported to the police, realize as required the playback of Historical Monitoring data or further send to host computer.
The present embodiment is transmitting terminal and primary track use-pattern that the other end is receiving end (being the fixing mode using of transmitting terminal and receiving end) for track circuit one end.
Embodiment bis-
Referring to accompanying drawing 2, a kind of track circuit electrical characteristics monitoring system, comprise 2 monitoring units that are connected with exchange by a pair of real loop line, 2 monitoring unit structures are all identical with the extension set of embodiment mono-, are mainly 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 present embodiment for track circuit transmitting terminal and receive single-ended be at a time can conversion work attitude mode.
Embodiment tri-
Referring to accompanying drawing 3, a kind of track circuit electrical characteristics monitoring system, comprise the n platform monitoring unit being connected with exchange by a pair of real loop line, n platform monitoring unit structure is all identical with the extension set of embodiment mono-, mainly be 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, n is the arbitrary integer between 1～200.
Embodiment tetra-
Referring to accompanying drawing 4, a kind of track circuit electrical characteristics monitoring system, comprise the m × n platform monitoring unit real loop line being connected with exchange by m, n platform monitoring unit structure is all identical with the extension set of embodiment mono-, mainly formed by 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 above-described embodiment one to embodiment tetra-, exchange provides required power supply by real loop line to monitoring unit, and completes and the data communication of extension set by this reality loop line; Exchange adopts the mode of taking turn to patrol and exhales monitoring unit, called monitoring unit sends Monitoring Data to exchange after replying, exchange carries out analyzing and processing to Monitoring Data after receiving, 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 exceedes thresholding is reported to the police.
Relevant explanation of nouns:
Rail surface voltage: transmitting terminal is delivered to the electric signal of transmitting terminal by 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 by metallic conductor on the position of rail one end, by the electric current in this metallic conductor;
Current-limiting resistance voltage: the voltage drop at current-limiting resistance two ends;
Carrier frequency frequency: for realizing the long-distance transmissions of information, modulate the signal to above high frequency, modulated frequency is called carrier frequency;
Signal frequency: for controlling the signal frequency of cab signal;
Upper and lower offset frequency: the amplitude that FM 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 the electrical specification on-line monitoring to track circuit.
Extension set is by the isolation respectively transmitting terminal of acquisition trajectory circuit or various voltages, electric current and the frequency parameter of receiving end of device (current sensor 11 and voltage sensor 21,31) of sampling, after amplifying by shaping, use carrier frequency, the upper and lower offset frequency of the voltage of high-speed microprocessor to railway voltage, electric current, current-limiting resistance, cab signal and signal frequency is measured and demodulation, and by various measurement result storages, demonstration.Use software to realize 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, are processed, and by chart, measurement and analysis result is shown; Receive the instruction of host computer to the flourishing various data of host computer simultaneously.
Claims (6)
1. a track circuit electrical characteristics monitoring system, it is characterized in that: described monitoring system comprises the m × n platform monitoring unit real loop line being connected with exchange by m, every monitoring unit structure is identical, is mainly 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 by current sensor (11) and a track circuit transmission line electrical connection 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, according to the requirement of exchange, the monitoring information of treated element analysis processing is sent to exchange;
Power transfer module (40) thus effect be to provide working power by changing from the power supply of exchange as 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 that rail surface voltage, rail level electric current, current-limiting resistance voltage, track lead state, the carrier frequency frequency of cab signal, signal frequency, upper and lower offset frequency information that above-mentioned each sampling unit is gathered are carried out analyzing and processing, data or the chart of processing by analysis formation are intuitively shown by display module, and according to the requirement of exchange, monitoring information is sent to exchange by communication module;
Exchange is connected with m × n platform monitoring unit real loop line by m, be responsible for monitoring unit to manage, adopt taking turn mode and extension set to set up communication link, the row data communication of going forward side by side, monitoring information and the data analysis processing of monitoring unit will be received, carry out chart and curve and show, and the parameter that transfinites is reported to the police; Realize as required the playback of Historical Monitoring data 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. track circuit electrical characteristics monitoring system according to claim 1, it is characterized in that: described current sampling unit (10) comprises current sensor (11) and the first shaping amplification module (12), the effect of current sensor (11) is to gather rail level current information, the effect of the first shaping amplification module (12) is that the rail level current information that current sensor (11) is collected carries out shaping, amplification, is then transferred to processing unit (00).
3. according to track circuit electrical characteristics monitoring system described in claim 1 or 2, it is characterized in that: described 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, will between rail surface voltage sampling unit and track circuit, carry out electrical isolation, the effect of the second shaping amplification module (22) is second voltage to be passed to the rail surface voltage information that device (21) collects carry out shaping, amplification, is then transferred to processing unit (00).
4. track circuit electrical characteristics monitoring system according to claim 3, it is characterized in that: described 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 current-limiting resistance information of voltage, the 2nd, will between current-limiting resistance voltage sample unit and track circuit, carry out electrical isolation, the effect of the 3rd shaping amplification module (32) is that the current-limiting resistance information of voltage that tertiary voltage sensor (31) is collected carries out shaping, amplify, then be transferred to processing unit (00).
5. track circuit electrical characteristics monitoring system according to claim 4, is characterized in that: described 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 information such as analyzing and processing the rail level electric current, carrier frequency frequency, signal frequency and the upper and lower offset frequency that collect; The effect of voltage measurement module (02) is rail surface voltage, the current-limiting resistance information of voltage that analyzing and processing collects.
6. track circuit electrical characteristics monitoring system according to claim 5, is characterized in that: described processing unit is 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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| CN102608475B true CN102608475B (en) | 2014-05-14 |
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Families Citing this family (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 |
| 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 |
| 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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