CN102176157B - Mutual inductance type real-time on-line diagnosis and repair system for reliability of long-distance multi-node train line and use method thereof - Google Patents
Mutual inductance type real-time on-line diagnosis and repair system for reliability of long-distance multi-node train line and use method thereof Download PDFInfo
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- CN102176157B CN102176157B CN 201110027923 CN201110027923A CN102176157B CN 102176157 B CN102176157 B CN 102176157B CN 201110027923 CN201110027923 CN 201110027923 CN 201110027923 A CN201110027923 A CN 201110027923A CN 102176157 B CN102176157 B CN 102176157B
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Abstract
The invention discloses a mutual inductance type real-time on-line diagnosis and repair system for the reliability of a long-distance multi-node train line and a use method thereof. The system comprise a host and a slave, wherein an electrical grinding part is arranged on the host and is connected to detected line pairs; a grinding current absorbing part and a slave end voltage detecting part are arranged on the slave and are respectively connected to the detected line pairs; and the grinding current absorbing part is connected with the electrical grinding part through a trigger control wire. Compared with the prior art, the invention has the benefits that: firstly, the real-time on-line detection and the real-time on-line grinding for the reliability of the long-distance multi-node train line are achieved, the phenomenon that the usability of the line is influenced due to high-frequency detection and line interrupting operation can be avoided, the overhaul and the detaching for maintenance for the parts of the equipment can be avoided, the repair efficiency and the reliability are greatly improved and the loss rate and the cost expenditure are reduced; and secondly, the system has a simple and contact integral structure and is convenient and easy to operate.
Description
Technical field
The present invention relates to a kind of train-line reliability real-time online diagnosis system and using method thereof, belong to the Electric automation technology field, refer in particular to long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system and the using method thereof of the conductive contact surfaces of contacts such as relating to electric switch, relay and electrical connector.
Background technology
In the electric automatization field, various switching regulator element is extensively used, and the reliability of many Key Circuit that run without interruption is online played important impact.As everyone knows, train generally is comprised of the more piece compartment, partial logic control signal wire and signal controlling loop wire need to run through the permutation car, therefore need to arrange a plurality of subsection connectors on the train-line and be convenient to that train is disassembled and line upkeep, the part circuit needs also to arrange that more control contact is to satisfy logic control.In operational process, the conduction reliability of these connectors and contact directly affects the reliability of these train-line control loops.At present, mainly take to make regular check on the preventive maintenance measure of maintenance for the key loop of this type, but effect is not remarkable, and need to frequently carries out the shutdown of long period and open and inspect, reduced the availability of equipment; And use inline diagnosis and the automatic repair system of single contact and connector, the equipment layout amount can't satisfy too greatly request for utilization; On the other hand, general conductance detection technique and electric grinding need to be interrupted the right function of tested train-line and just can detect and grind, and the use of train-line is existed certain interference and restriction.
In use, the inefficacy of on-off element contact face and connector or hydraulic performance decline often are because oxidation, the carbon distribution and stained of conductive contact surfaces.In the prior art, traditional restorative procedure is to decompose after on-off element is disassembled, and takes out the contact pin of contact or connector, and conductive contact surfaces is carried out the artificial mechanism polishing, then can only scrap replacing for the hermetic switchgear of part.This traditional polishing process need to decompose and again assembling on-off element, complicated operation, and labor intensive, and the tolerance clearance after assembling again is difficult to guarantee to return to original optimum condition; On the other hand, polishing also has extra loss to the contact copper face, and contact is only done once and just need to be scrapped to twice polishing reparation usually; Simultaneously, the contact polishing is also higher to operating personnel's technical requirement.
Summary of the invention
The object of the invention is to overcome shortcoming of the prior art with not enough, provide a kind of simple and compact for structure, easy to operate easily, need not to dismantle that resolution element, real-time online detect and repair, efficient height and cost are low long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system.
Another object of the present invention is to provide the using method of above-mentioned long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system.
In order to realize first purpose, the present invention realizes by following technical scheme:
A kind of long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system, include main frame and slave, described main frame is provided with electric grinding component, electric grinding component is connected to is examined circuit to upper, described slave is provided with and grinds the current absorption parts and from the terminal voltage detection part, grinds the current absorption parts and is connected the terminal voltage detection part and is connected to respectively and is examined circuit to upper and grind the current absorption parts and trigger control line by one and be connected with electric grinding component.
Further, described main frame is provided with the first isolating diode and the second isolating diode, and the first isolating diode and the second isolating diode are serially connected with is respectively examined circuit to upper.
Further, described electric grinding component, grinding current absorption parts and a port of being connected the terminal voltage detection part are connected with ground wire respectively.
Further, described main frame is provided with the alarm lamp that is used to indicate malfunction, and alarm lamp is connected with electric grinding component.
In order to realize second purpose, the present invention realizes by following technical scheme:
The using method of a kind of long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system, it may further comprise the steps: in a, the circuit working process, detect in real time the voltage-to-ground of load end from the terminal voltage detection part, and in setting voltage relatively, calculate examined circuit signal degrade condition; If b signal attenuation is excessive, electric grinding component triggering applies the grinding electric current and is ground examining the circuit conductive contact surfaces, grinds electric current and is transferred on the ground wire by grinding the current absorption parts.
Further, also comprise the c step, after a milling cycle finishes, whether be lower than threshold values from the decay of terminal voltage detection part detection signal, be then to finish to grind, otherwise again apply the grinding electric current, if still be higher than threshold values by five milling cycle signal attenuations continuously, the circular fault of then reporting to the police unrepairable, and between the milling cycle time interval be less than 30 seconds.
Further, in the described b step, first apply the alternating-current pulse electric current being examined the circuit conductive contact surfaces, this electric current forms voltage drop at resistance, and the equivalent capacity two ends that form in dirt and local clearance form charging voltage; When described charging voltage punctures the equivalent diode of pressure-resistant machine cupric oxide when withstand voltage greater than stained equivalent capacity, stained and oxide layer are punctured by electric current and form spark discharge, and the stained thing and the Cu oxide that adhere to can be cleared up by electric spark.
Further, the current value of described alternating-current pulse electric current can not be above 3 times of contact rated current capacity.
Further, the pulsewidth of described alternating-current pulse electric current is 100ms, and the positive and negative alternating-current pulse logarithm that single applies is 3, is spaced apart 100ms.
Further, the number of times that always applies of described alternating-current pulse electric current is 3 times.
The present invention compared with prior art, its beneficial effect is:
1, the real-time online of realizing long distance multi-node train-line circuit reliability detects and the real-time online polishing, avoid the availability of high frequency detection and line interruption operating influence circuit, exempted opening and inspecting and decompose maintenance equipment part, greatly improve remediation efficiency and reliability, lowered coefficient of losses and cost payout;
2, one-piece construction is simply compact, and is easy to operate easy.
In order to understand more clearly the present invention, set forth the specific embodiment of the present invention below with reference to description of drawings.
Description of drawings
Fig. 1 is that the present invention is the circuit structure block scheme.
Fig. 2 is the electrical block diagram that grinds the current absorption parts among Fig. 1.
Fig. 3 is from the electrical block diagram of terminal voltage detection part among Fig. 1.
Embodiment
As shown in Figures 1 to 3, long distance multi-node train-line reliability mutual inductance type real-time online diagnosis of the present invention system adopts transmission line pressure reduction mutual inductance detection technique, it includes main frame and slave, described main frame is provided with electric grinding component, electric grinding component is connected to is examined circuit to upper, described slave is provided with and grinds the current absorption parts and from the terminal voltage detection part, grinds the current absorption parts and is connected the terminal voltage detection part and is connected to respectively and is examined circuit to upper and grind the current absorption parts and trigger control line by one and be connected with electric grinding component.Further, described electric grinding component, grinding current absorption parts and a port of being connected the terminal voltage detection part are connected with ground wire respectively.
Above-mentioned main frame is provided with the first isolating diode and the second isolating diode, and the first isolating diode and the second isolating diode are serially connected with is respectively examined circuit to upper.Further, described main frame is provided with the alarm lamp that is used to indicate malfunction, and alarm lamp is connected with electric grinding component.
Above-mentioned grinding current absorption parts are provided with two TVS pipes, and an end of each TVS pipe is connected with ground wire, and the other end connects is examined circuit.
Above-mentionedly be provided with a 89C52 single-chip microcomputer and two A/D converters from the terminal voltage detection part, A/D converter is connected with the 89C52 single-chip microcomputer respectively after linking to each other.
The using method of above-mentioned long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system may further comprise the steps: in a, the circuit working process, detect in real time the voltage-to-ground of load end from the terminal voltage detection part, and in setting voltage relatively, calculate examined circuit signal degrade condition; If b signal attenuation is excessive, electric grinding component triggering applies the grinding electric current and is ground examining the circuit conductive contact surfaces, grinds electric current and is transferred on the ground wire by grinding the current absorption parts; After c, a milling cycle finish, whether be lower than threshold values from the decay of terminal voltage detection part detection signal, then to finish to grind, otherwise again apply the grinding electric current, if still be higher than threshold values by five milling cycle signal attenuations continuously, the circular fault of then reporting to the police unrepairable, and between the milling cycle time interval be less than 30 seconds.
In the above-mentioned b step, first apply the alternating-current pulse electric current being examined the circuit conductive contact surfaces, this electric current forms voltage drop at resistance, and the equivalent capacity two ends that form in dirt and local clearance form charging voltage; When described charging voltage punctures the equivalent diode of pressure-resistant machine cupric oxide when withstand voltage greater than stained equivalent capacity, stained and oxide layer are punctured by electric current and form spark discharge, and the stained thing and the Cu oxide that adhere to can be cleared up by electric spark.
Further, the current value of described alternating-current pulse electric current can not be above 3 times of contact rated current capacity; The pulsewidth of described alternating-current pulse electric current is 100ms, and the positive and negative alternating-current pulse logarithm that single applies is 3, is spaced apart 100ms; The number of times that always applies of described alternating-current pulse electric current is 3 times.
The present invention is not limited to above-mentioned embodiment, if various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, if these are changed and modification belongs within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.
Claims (10)
1. one kind long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system, it is characterized in that: include main frame and slave, described main frame is provided with electric grinding component, electric grinding component is connected to on-off element and is examined circuit to upper, described slave is provided with and grinds the current absorption parts and from the terminal voltage detection part, grinds the current absorption parts and is connected the terminal voltage detection part and is connected to respectively on-off element and is examined circuit to upper and grind the current absorption parts and trigger control line by one and be connected with electric grinding component.
2. described long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system according to claim 1, it is characterized in that: described main frame is provided with the first isolating diode and the second isolating diode, and the first isolating diode and the second isolating diode are serially connected with respectively on-off element and are examined circuit to upper.
3. described long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system according to claim 1, it is characterized in that: described electric grinding component, grinding current absorption parts and a port of being connected the terminal voltage detection part are connected with ground wire respectively.
4. described long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system according to claim 1, it is characterized in that: described main frame is provided with the alarm lamp that is used to indicate malfunction, and alarm lamp is connected with electric grinding component.
5. the using method of one kind long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system is characterized in that may further comprise the steps:
In a, the circuit working process, detect in real time the voltage-to-ground of load end from the terminal voltage detection part, and with setting voltage relatively, the compute switch element is examined the signal degrade condition of circuit;
If b signal attenuation is excessive, electric grinding component triggers to apply and grinds electric current and on-off element is examined the circuit conductive contact surfaces grind, and grinds electric current and is transferred on the ground wire by grinding the current absorption parts.
6. the using method of described long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system according to claim 5, it is characterized in that: also comprise the c step, after a milling cycle finishes, whether be lower than threshold values from the decay of terminal voltage detection part detection signal, be then to finish to grind, otherwise again apply the grinding electric current, if still be higher than threshold values by five milling cycle signal attenuations continuously, the circular fault of then reporting to the police unrepairable, and between the milling cycle time interval be less than 30 seconds.
7. the using method of described long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system according to claim 5, it is characterized in that: in the described b step, first examined the circuit conductive contact surfaces at on-off element and applied the alternating-current pulse electric current, this electric current forms voltage drop at resistance, forms charging voltage at the equivalent capacity two ends of dirt and the formation of local clearance; When described charging voltage punctures the equivalent diode of pressure-resistant machine cupric oxide when withstand voltage greater than stained equivalent capacity, stained and oxide layer are punctured by electric current and form spark discharge, and the stained thing and the Cu oxide that adhere to can be cleared up by electric spark.
8. the using method of described long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system according to claim 7, it is characterized in that: the current value of described alternating-current pulse electric current can not surpass 3 times of contact rated current capacity.
9. the using method of described long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system according to claim 8, it is characterized in that: the pulsewidth of described alternating-current pulse electric current is 100ms, the positive and negative alternating-current pulse logarithm that single applies is 3, is spaced apart 100ms.
10. the using method of described long distance multi-node train-line reliability mutual inductance type real-time online diagnosis system according to claim 9, it is characterized in that: the number of times that always applies of described alternating-current pulse electric current is 3 times.
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| CN 201110027923 CN102176157B (en) | 2011-01-26 | 2011-01-26 | Mutual inductance type real-time on-line diagnosis and repair system for reliability of long-distance multi-node train line and use method thereof |
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| CN102176157B true CN102176157B (en) | 2013-03-27 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870078A (en) * | 2010-05-25 | 2010-10-27 | 广州市地下铁道总公司 | Direct-current electric grinding method for conductive contact surfaces |
| CN101870079A (en) * | 2010-05-25 | 2010-10-27 | 广州市地下铁道总公司 | Alternating-current electric grinding method for conductive contact surfaces |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2620283Y (en) * | 2003-06-03 | 2004-06-09 | 南京大学 | Automatic fast measurer for relay |
| CN101191820A (en) * | 2006-11-29 | 2008-06-04 | 上海乐开测控设备有限公司 | Electrodynamic train switch push button , electric relay, circuit breakers monitoring device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870078A (en) * | 2010-05-25 | 2010-10-27 | 广州市地下铁道总公司 | Direct-current electric grinding method for conductive contact surfaces |
| CN101870079A (en) * | 2010-05-25 | 2010-10-27 | 广州市地下铁道总公司 | Alternating-current electric grinding method for conductive contact surfaces |
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