CN201555919U - On-line insulation test instrument for track circuit - Google Patents
On-line insulation test instrument for track circuit Download PDFInfo
- Publication number
- CN201555919U CN201555919U CN2009202454770U CN200920245477U CN201555919U CN 201555919 U CN201555919 U CN 201555919U CN 2009202454770 U CN2009202454770 U CN 2009202454770U CN 200920245477 U CN200920245477 U CN 200920245477U CN 201555919 U CN201555919 U CN 201555919U
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- insulation
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- track circuit
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Abstract
The utility model relates to an on-line insulation test instrument for a track circuit, which is used for testing the insulation characteristic of a railway track circuit. The insulation test instrument mainly comprises a current sensor, a signal testing pen-shape meter, a control plate, an LED, a loudspeaker, a liquid crystal display, a communication interface, a power switch, a rechargeable battery and a software module, wherein the circuit of the control plate mainly comprises a DSP (a Digital Signal Processor), a signal AD collector and a signal DA collector, and the software module is stored in a memorizer in a DSP data processing circuit. The insulation test instrument is suitable for on-line insulation tests of various track circuits, such as track circuits with novel and old track rods and tongue rail full-length slide plates, first connecting bars, second connecting bars and third connecting bars of railroad switches, point switch mounting devices, point stretchers, steel rails, sending and receiving end connecting wire bolts, and the like. The insulation test instrument can judge the insulativity of a track circuit quantitatively and qualitatively, and cannot influence the track circuit during the test.
Description
Technical field the utility model relates to a kind of insulation on-line testing facility, specifically is used for testing the device of railway track circuit insulativity.
The background technology railway system safe and reliable is the important assurance of safe train operation.Facts have proved that be engaged in the phylogenetic driving faults by electricity, major part is to be caused by track switch and track circuit failure, and track circuit failure, manyly again cause that by damage in insulation----cause the interval electricity that connects of track circuit, the section occupied illusion occurs.
The track circuit of the railway system, by rail, insulation of track circuit, rail end bond wire, lead wire, send critical pieces such as electric equipment and power receiving equipment to form, with two one steel rails of rail track as conductor, connect power supply and receiving equipment constitutes electric loop with lead wire, automatically and continuously operation and the signalling arrangement with train connects, and whether the supervision rail track is idle.
The interval is electric to be cut apart for track circuit is carried out, and is provided with insulation of track circuit.Insulation of track circuit comprises various insulation of track circuit such as steel rail end insulation, the insulation of mounting turnout device, tie rod insulation.The reason that causes damage in insulation of track circuit is very complicated, searches also quite difficulty.In the railway signals equipment maintenance work, be used for judging the method for insulation of track circuit performance at present, be by common multimeter and the test of common insulation table, the shortcoming of this method is: because of other equipment is housed around the insulation of track circuit, when adopting multimeter or megger to measure, must remove the other equipment of rail or decompose insulation, otherwise can't accomplish directly to carry out online accurate measurement; And the insulation of track circuit after dismantling may not have breakage, just can not use but remove the back again, has both caused very big economic loss, has influenced the normal operation of train yet.
The utility model content is in order to solve the difficult problem that can't carry out the online detection of insulation of track circuit at present, the utility model provides a kind of novel track circuit insulation online testing device, during this device to test insulation of track circuit, need not decompose insulation of track circuit and remove the other equipment of rail, just can find damage in insulation situation and damaged variation tendency.
The utility model is finished like this: this on-line testing track insulation device mainly comprises current sensor, signal testing test pencil, communication interface, power switch, rechargeable battery, suggestion device, LCD, control panel, software module.Current sensor, signal testing test pencil, communication interface, rechargeable battery and power switch, LCD, be connected with control panel respectively; Said control panel contains signal AD collection, signal DA generation, DSP signal Processing, and three front and back successively connects.The combination of light emitting diode or loudspeaker or light emitting diode and loudspeaker can be used to point out.Software module is stored in the storer in the DSP data processing circuit, is used for the control device operation.
Carry out insulation of track circuit when test when opening this device power switch, need not to decompose insulation of track circuit and remove the other equipment of rail, but just on-line testing insulation of track circuit impedance, promptly generate the signal of a particular frequencies by the DSP signal processing circuit control DA signal generating circuit of device inside, pass to the insulation of track circuit two ends with the signal testing test pencil, the signals collecting at track insulation two ends is returned (or utilize existing signal in the track circuit by the signal testing test pencil simultaneously, current sensor by this device, field signal acquisition is returned), by computed in software and analysis in the DSP signal processor, compare with software set value in the device: when exceeding setting value, point out by suggestion device, and by the device liquid crystal display displays, also can show on computers by communication interface and computing machine communication, record, analyze, print the test data of insulation of track circuit.
According to field condition, comprehensively adopt above-mentioned steps, qualitative and quantitatively provide the conclusion of insulation of track circuit quality by this device; And supporting management software is arranged, and can send and receive the data of this device by host computer, carry out test data reception and management data and download, finish insulation of track circuit management and data analysis function.
The utility model is applicable to new, old-fashioned tie rod in the track circuit, the elongated slide plate insulation of tongue, first, second and third connecting link insulation of track switch, the switch machine installation insulation, front rod of a point insulation, rail insulation and the on-line testing of sending various insulation of track circuit such as receiving end connecting line bolt insulation.Can be qualitative, judge the insulativity of track circuit quantitatively, during test to the rail circuit passband without any influence.The utility model is equipped with lithium battery, can continuous working.
Below in conjunction with embodiment who adopts the utility model to carry out the insulation of track circuit on-line testing of accompanying drawing narration.
Description of drawings
Fig. 1. the system that is present embodiment forms structural drawing
Embodiment
Fig. 1 has shown that system of the present utility model forms structure.Mainly form by current sensor 1, signal testing test pencil 2, communication interface 3, power switch 4, rechargeable battery 5, light emitting diode 6, loudspeaker 7, LCD 8, software module, control panel 9; Current sensor 1, signal testing test pencil 2, communication interface 3, power switch 4, rechargeable battery 5, light emitting diode 6, loudspeaker 7, LCD 8, be connected with control panel 9 by lead.
In the circuit of said control panel 9, contain signal AD collection 11, DSP signal Processing 13, signal DA generation 12, three front and back successively connects.Signal DA produces 12, has the function that generates various particular frequencies signals, is used as the signal source of test tracks insulation characterisitic.Software module is stored in the storer in the DSP data processing circuit, is used for the control device operation.
External signal is gathered by current sense 1, the signal AD that is sent in the control panel 9 gathers in 11, after disposing, send in the DSP signal Processing 13 and handle, last DSP signal processor 13 shows by LCD 8, also can point out by light emitting diode 6 flickers and loudspeaker 7 sounding.DSP signal processing circuit 13 produces 12 by control signal DA, generate the signal of a particular frequencies, by signal testing test pencil 2, this signal is outputed to the insulation of track circuit two ends, by signal testing test pencil 2 voltage signal acquisition on the track insulation two ends is returned then, send into signal AD and gather 11 and carry out data sampling, send into DSP signal Processing 13 after the sampling processing and analyze, demodulate the component of signal that this device of mixed signal the inside sends.The effective value of signal converses the track insulation impedance thus, and 8 demonstrations of liquor charging crystal display, or points out by light emitting diode 6 flickers or loudspeaker 7 sounding.
With external signal, carry out the quantitative test test and be example by this device.During work,, produce 12, generate the signal of a particular frequencies by control signal DA at first by DSP signal Processing 13; By signal testing test pencil 2, this signal is outputed to the insulation of track circuit two ends, by signal testing test pencil 2 voltage signal acquisition on the track insulation two ends is returned then, send into signal AD collection 11 and carry out data sampling, send into DSP signal Processing 13 after the sampling processing and analyze, demodulate the component of signal that this device of mixed signal the inside sends.The effective value of signal converses the track insulation impedance thus, and 8 demonstrations of liquor charging crystal display, or points out by light emitting diode 6 flickers or loudspeaker 7 sounding.For effectively eliminating the interference to track signal of high-frequency signal and test circuit, output and load module adopt high input, output impedance, track signal are not produced when guaranteeing on-line testing and disturb.
Below realize the same test purpose of present embodiments with four kinds of means, its method step is as follows:
One of method of testing: electric current qualitative test
When damage in insulation of track circuit, have electric current and pass through insulation of track circuit.During test, this device is circumscribed with current sensor 1, because electric current can produce induced signal on current sensor 1, gather this signal by control panel 9, on LCD 8, show, and then test value and the inner setting value of device are compared, when test result exceeds setting value by software in the device, by light emitting diode 6 flicker and loudspeaker 7 sounding, point out.
Two of method of testing: voltage qualitative test.
1), when damage in insulation of track circuit, can between insulator and rail, producing voltage.During test, by external test pencil 2 engaged tests of this device.When tested voltage exceeds limit value, relatively:,, point out by light emitting diode 6 flicker and loudspeaker 7 sounding if voltage exceeds setting value in the device by software in the device.
2), the breakage of being short-circuited property of rail end, the leakage current of insulation is greater than the electric current of flow to specifying receiving end.By the voltage between the external test pencil of this device 2 test rail both sides clamping plate and the rail, voltage between the track-end insulation, show tested voltage in LCD 8, through the device in house software tested voltage is compared judgement, if voltage ratio exceeds software set value in the device, by light emitting diode 6 flicker and loudspeaker 7 sounding, point out.
Three of method of testing: do not produce signal, and adopt external signal that insulation impedance is carried out quantitative test by this device.
Include various electric signal in the on-the-spot track, the electric signal of these insulation of track circuit of flowing through can produce impedance on insulation of track circuit.Voltage and current by signal testing test pencil 2 and current sensor 1 on-line testing insulation two ends; By software in the device, leach or deduct other component of signals, analytical calculation insulation impedance value, inner setting value in compare test result and the device, and the insulation impedance value of demonstration test on LCD 8, if exceeded the setting value of software in the device relatively, light emitting diode 6 flickers, loudspeaker sounding 7 are pointed out.
Four of method of testing:, carry out quantitative test by the external signal of this device.
During test, produce the AC signal that 12 circuit generate characteristic frequency, be delivered to the insulation of track circuit two ends through installing external signal testing test pencil 2 by DSP signal processing circuit 13 control signal DA in the device; By signal testing test pencil 2 voltage signal acquisition on the track is returned then, send into signal AD collection 11 and carry out data acquisition, send into DSP signal Processing 13 after the acquisition process and analyze, this device that demodulates the mixed signal the inside sends the component of signal of signal.Effective value by signal can calculate insulation impedance, and 8 demonstrations of liquor charging crystal display, or points out by light emitting diode 6 flickers or loudspeaker 7 sounding.Send the interference to track signal of signal and test circuit for effectively eliminating, output and load module adopt high input, output impedance, track signal are not produced when guaranteeing on-line testing and disturb.
Claims (2)
1. insulation of track circuit online testing device, it is characterized in that: comprise current sensor (1), signal testing test pencil (2), communication interface (3), power switch (4), rechargeable battery (5), suggestion device, LCD (8) software module, control panel (9), current sensor (1), signal testing test pencil (2), communication interface (3), rechargeable battery (5) and power switch (4), LCD (8), be connected with control panel (9) respectively; Said control panel (9) contains that signal AD gathers (11), signal DA produces (12), DSP signal Processing (13), and signal AD gathers (11), three's front and back connection successively; Software module is stored in the storer in the DSP data processing circuit; External signal is gathered by current sense (1), the signal AD that is sent in the control panel (9) gathers in (11), send in the DSP signal Processing (13) again and handle, last DSP signal processor (13) shows by LCD (8), or sends prompting by suggestion device; DSP signal processing circuit (13) produces the signal that (12) generate a particular frequencies by control signal DA, by signal testing test pencil (2), this signal is outputed to the insulation of track circuit two ends, by signal testing test pencil (2) voltage signal acquisition on the track insulation two ends is returned then, send into signal AD collection (11) and carry out data sampling, sending into DSP signal Processing (13) after the sampling processing analyzes, demodulate the component of signal that this device of mixed signal the inside sends, the effective value of signal converses the track insulation impedance thus, and liquor charging crystal display (8) demonstration, pointed out by suggestion device.
2. insulation of track circuit online testing device according to claim 1 is characterized in that: said suggestion device is light emitting diode (6) or loudspeaker (7), or the combination of light emitting diode (6) and loudspeaker (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202454770U CN201555919U (en) | 2009-11-27 | 2009-11-27 | On-line insulation test instrument for track circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202454770U CN201555919U (en) | 2009-11-27 | 2009-11-27 | On-line insulation test instrument for track circuit |
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| Publication Number | Publication Date |
|---|---|
| CN201555919U true CN201555919U (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202454770U Expired - Lifetime CN201555919U (en) | 2009-11-27 | 2009-11-27 | On-line insulation test instrument for track circuit |
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| CN (1) | CN201555919U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608475A (en) * | 2012-04-08 | 2012-07-25 | 柳州辰天科技有限责任公司 | Track circuit electrical characteristic monitoring system |
| CN105676080A (en) * | 2015-12-30 | 2016-06-15 | 中国神华能源股份有限公司 | Railway track insulating property test method and test device |
| CN108344932A (en) * | 2018-04-13 | 2018-07-31 | 北京全路通信信号研究设计院集团有限公司 | A kind of track circuit station interior insulation breakage online test method and device |
| CN108663612A (en) * | 2018-05-16 | 2018-10-16 | 吉林市盈冲科技有限公司 | A kind of track circuit failure automatic detection device |
| 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 |
| CN109080662A (en) * | 2018-08-23 | 2018-12-25 | 广州地铁集团有限公司 | A kind of track switch monitoring control devices system and monitoring method |
| CN114062875A (en) * | 2021-11-18 | 2022-02-18 | 株洲时代新材料科技股份有限公司 | Device and method for testing impedance characteristics of rail insulation and parts thereof |
| CN116068277A (en) * | 2023-03-06 | 2023-05-05 | 北京全路通信信号研究设计院集团有限公司 | Insulation resistance testing device and method for mechanical insulation joint in station |
-
2009
- 2009-11-27 CN CN2009202454770U patent/CN201555919U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608475A (en) * | 2012-04-08 | 2012-07-25 | 柳州辰天科技有限责任公司 | Track circuit electrical characteristic monitoring system |
| CN102608475B (en) * | 2012-04-08 | 2014-05-14 | 柳州辰天科技有限责任公司 | Track circuit electrical characteristic monitoring system |
| CN105676080A (en) * | 2015-12-30 | 2016-06-15 | 中国神华能源股份有限公司 | Railway track insulating property test method and test device |
| CN105676080B (en) * | 2015-12-30 | 2019-07-23 | 中国神华能源股份有限公司 | Railroad track insulation performance test method and test device |
| CN108344932A (en) * | 2018-04-13 | 2018-07-31 | 北京全路通信信号研究设计院集团有限公司 | A kind of track circuit station interior insulation breakage online test method and device |
| CN108344932B (en) * | 2018-04-13 | 2020-06-26 | 北京全路通信信号研究设计院集团有限公司 | Online detection method and device for insulation damage in track circuit station |
| CN108663612A (en) * | 2018-05-16 | 2018-10-16 | 吉林市盈冲科技有限公司 | A kind of track circuit failure automatic detection device |
| 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 |
| CN109080662A (en) * | 2018-08-23 | 2018-12-25 | 广州地铁集团有限公司 | A kind of track switch monitoring control devices system and monitoring method |
| CN114062875A (en) * | 2021-11-18 | 2022-02-18 | 株洲时代新材料科技股份有限公司 | Device and method for testing impedance characteristics of rail insulation and parts thereof |
| CN116068277A (en) * | 2023-03-06 | 2023-05-05 | 北京全路通信信号研究设计院集团有限公司 | Insulation resistance testing device and method for mechanical insulation joint in station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100818 |