CN102611185A - Self charging system for track test, track test instrument and self charging method of self charging system - Google Patents
Self charging system for track test, track test instrument and self charging method of self charging system Download PDFInfo
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- CN102611185A CN102611185A CN2012100754300A CN201210075430A CN102611185A CN 102611185 A CN102611185 A CN 102611185A CN 2012100754300 A CN2012100754300 A CN 2012100754300A CN 201210075430 A CN201210075430 A CN 201210075430A CN 102611185 A CN102611185 A CN 102611185A
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Abstract
The invention relates to a track technology, in particular to a self charging system for track test, a track test instrument and a self charging method of the self charging system. The power can be supplied to the track test instrument in a more reliable and energy-saving mode. The self charging system for the track test comprises a vibration actuating structure, an energy converting device and an energy storage device, wherein the vibration actuating structure is connected to a track, the energy converting device is connected to the vibration actuating structure for converting track vibration energy received by the vibration actuating structure into electric energy, and the energy storage device is connected to the energy converting device for receiving and storing the electric energy and supplying the electric energy to the track test instrument.
Description
Technical field
The present invention relates to track technology, particularly detecting of railway with self-charging system, detecting of railway instrument and self-charging method thereof.
Background technology
In the prior art, the detecting of railway instrument that railroad track is carried out test monitoring is usually through the disposable battery power supply.But, in case disposable battery runs out of electric energy or dump energy is not enough, then must carry out manual work and change, this not only changes inconvenience, and can influence the normal operation of railway, particularly closed high-speed railway, even needs to interrupt railway operation.
Summary of the invention
Various embodiments of the present invention provide detecting of railway with self-charging system, detecting of railway instrument and self-charging method thereof, can be the power supply of detecting of railway instrument with the mode of reliable and energy-saving more.
According to an aspect of the present invention, provide a kind of detecting of railway to use self-charging system, comprising:
Be connected to the vibration actuating structure of track;
Energy conversion device, it is connected to said vibration actuating structure and is converted into electric energy with the vibrational energy of said track that said vibration actuating structure is received;
Energy storage device, it is connected to said energy conversion device receiving and to store said electric energy, and with said supply of electrical energy to the detecting of railway instrument.
Preferably, in various embodiments of the present invention, described detecting of railway further comprises the electric energy adjustment unit with self-charging system, and it is connected between said energy conversion device and the said energy storage device, and comprises at least a in following:
The AC-DC transformational structure;
The bridge rectifier structure, it preferably includes the bridge rectifier that is made up of diode;
The voltage stabilizing Processing Structure, it preferably includes the electric capacity of voltage regulation on two outputs that are connected in said electric energy adjustment unit in parallel.
Preferably, in various embodiments of the present invention, said energy conversion device comprises:
The permanent magnet of clavate or non-clavate, it is connected to said vibration actuating structure to receive the vibrational energy from said track;
Conductive coil, it surrounds said permanent magnet and makes the said permanent magnet can reciprocating motion in the space that said conductive coil surrounds, the top of said conductive coil and the terminal pair of output that is electrically connected to said energy conversion device respectively.
Preferably, in various embodiments of the present invention, said energy conversion device comprises nonmagnetic protection cylinder, wherein,
Said protection cylinder is around said conductive coil, and said conductive coil is fixed on the inwall of said protection cylinder; Perhaps, said protection cylinder comprises inner core and the urceolus that is nested with each other, and said inner core is around said conductive coil, and said conductive coil is fixed between said inner core and the said urceolus;
Said protection cylinder directly contact with said track or through intermediate member be rigidly connected to said track or with said track.
Preferably, in various embodiments of the present invention, said vibration actuating structure comprises spring, and said permanent magnet is connected to track through said spring.
Preferably, in various embodiments of the present invention, said energy conversion device comprises: buffer structure, its end opening that is arranged on said conductive coil periphery or said conductive coil are sentenced and are prevented that said permanent magnet bump is impaired.
According to a further aspect in the invention, a kind of detecting of railway instrument is provided, comprises:
Foregoing detecting of railway is used self-charging system.
According to another aspect of the invention, a kind of self-charging method that is used for the detecting of railway instrument is provided, comprises:
The vibrational energy of track is converted into electric energy; With
Said supply of electrical energy is arrived said detecting of railway instrument.
Preferably, in various embodiments of the present invention, said conversion comprises: make permanent magnet reciprocating motion in the space that conductive coil surrounds through said track vibration, in said conductive coil, to produce electric current.
Preferably, in various embodiments of the present invention, after the vibrational energy with track is converted into electric energy with said supply of electrical energy before the said detecting of railway instrument, at least a in further may further comprise the steps:
Said electric energy is carried out the AC-DC conversion;
Said electric energy is carried out bridge rectifier;
Said electric energy is carried out voltage stabilizing to be handled.
The detecting of railway that provides through various embodiments of the present invention is with self-charging system, detecting of railway instrument and self-charging method thereof, can be the power supply of detecting of railway instrument with the mode of reliable and energy-saving more.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; Below will discuss the accompanying drawing of required use in embodiment or the description of the Prior Art; Obviously, only be some embodiments of the present invention in the technical scheme that combines accompanying drawing to describe, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 be according to an embodiment of the invention detecting of railway with the sketch map of self-charging system.
Fig. 2 is the sketch map of energy conversion device according to an embodiment of the invention.
Fig. 3 is the sketch map of electric energy adjustment unit according to an embodiment of the invention.
Fig. 4 is the flow chart that is used for the self-charging method of detecting of railway instrument according to an embodiment of the invention.
Embodiment
Below will combine accompanying drawing that the technical scheme of various embodiments of the present invention is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment described in the present invention, those of ordinary skills are resulting all other embodiment under the prerequisite that does not need creative work, all in the scope that the present invention protected.
According to an aspect of the present invention, provide a kind of detecting of railway to use self-charging system, comprising:
Be connected to the vibration actuating structure of track;
Energy conversion device, it is connected to said vibration actuating structure and is converted into electric energy with the vibrational energy of said track that said vibration actuating structure is received;
Energy storage device, it is connected to said energy conversion device receiving and to store said electric energy, and with said supply of electrical energy to the detecting of railway instrument.
Like this, the vibration actuating structure that is connected to track is delivered to energy conversion device with the vibrational energy of track and is converted into electric energy and is stored in the energy storage device, and energy storage device is the power supply of detecting of railway instrument.Through such mode; The detecting of railway instrument does not need independent powered battery; But can be by the energy storage device continued power, and energy storage device receives the electric energy that come by the track vibration Conversion of energy, the supply of electric power that makes the detecting of railway instrument obtain continuing thus constantly from energy conversion device.This supply of electric power is derived from the vibration of track; Under the normal operation state of railway; Train can be constantly through and cause track vibration, thereby can constantly vibrational energy be converted into supply of electrical energy, thereby not only energy source continues reliably and not can take place running down of battery and does not have the situation that electricity can supply; And utilize the track vibration energy but not additional battery energy remarkable conserve energy also has the environmental protection meaning.
Should be understood that the required supply current of detecting of railway instrument is little electric current in detecting of railway is used, that is, its operating current is less than 1 ampere, for example less than 1 milliampere or less than 1 microampere.
Preferably, in various embodiments of the present invention, described detecting of railway further comprises the electric energy adjustment unit with self-charging system, and it is connected between said energy conversion device and the said energy storage device, and comprises at least a in following:
The AC-DC transformational structure;
The bridge rectifier structure, it preferably includes the bridge rectifier that is made up of diode;
The voltage stabilizing Processing Structure, it preferably includes the electric capacity of voltage regulation on two outputs that are connected in said electric energy adjustment unit in parallel.
Fig. 1 be according to an embodiment of the invention detecting of railway with the sketch map of self-charging system.
In the embodiment shown in fig. 1, detecting of railway is used self-charging system, comprising:
Be connected to the vibration actuating structure 100 of track (not shown);
Electric energy adjustment unit 300, it is connected between said energy conversion device 200 and the said energy storage device 500.
Like this; The vibration actuating structure 100 that is connected to track (shown in the arrow in vibration actuating structure 100 left sides) is delivered to energy conversion device 200 with vibrational energy and is converted into electric energy; And be transferred to energy storage device 500 storages after the adjustment through electric energy adjustment unit 300, in order to be fed to detecting of railway instrument (shown in the arrow on energy storage device 500 right sides) electric energy is provided.
In one embodiment, can comprise the AC-DC transformational structure in the electric energy adjustment unit, convert direct current into, be more convenient for supplying the detecting of railway instrument to use transforming the alternating current that obtains through energy conversion device.It should be understood, of course, that for dissimilar detecting of railway instruments and may adopt dissimilar electric energy, when the detecting of railway instrument uses alternating current work, then needn't convert electrical energy into direct current, use and can alternating current be fed to the detecting of railway instrument.In one embodiment, the AC-DC transformational structure is arranged on the downstream of handling process in the electric energy adjustment unit,, only before electric energy is outputed to the detecting of railway instrument, just carries out the AC-DC conversion that is.
In one embodiment, can comprise the bridge rectifier structure in the electric energy adjustment unit, should be understood that such bridge rectifier structure can take the different circuits structure, for example can comprise full bridge structure or half-bridge structure, as long as can realize the bridge rectifier effect.Preferably, the bridge rectifier structure can comprise the bridge rectifier that is made up of diode, for example can comprise the full-bridge rectifier that is made up of four diodes.
In one embodiment, can comprise the voltage stabilizing Processing Structure in the electric energy adjustment unit, have burning voltage to guarantee the electric energy that is supplied to the use of detecting of railway instrument.Preferably, the voltage stabilizing Processing Structure comprises the electric capacity of voltage regulation on two outputs that are connected in said electric energy adjustment unit in parallel, to realize voltage stabilizing.
In one embodiment, can comprise bridge rectifier structure and voltage stabilizing Processing Structure in the electric energy adjustment unit.Should understand; The bridge rectifier structure can be arranged on the voltage stabilizing Processing Structure the upper reaches (at this moment, electric energy carry out earlier rectification handle carry out voltage stabilizing again and handle), the downstream that also can be arranged on the voltage stabilizing Processing Structure are (at this moment; Electric energy carries out the voltage stabilizing processing earlier and carries out the rectification processing again), this adaptability setting as required.
In various embodiments of the present invention, said bridge rectifier structure and said AC-DC transformational structure can be integrated into single part, thereby can realize rectification function and AC-DC translation function simultaneously.
Fig. 2 is the sketch map of electric energy adjustment unit according to an embodiment of the invention.In the embodiment shown in Figure 2, the electric energy adjustment unit is from upstream to downstream and comprises successively: input 301; The full-bridge rectifier 310 that constitutes by four diodes as said bridge rectifier structure; Said voltage stabilizing Processing Structure (it comprises the electric capacity of voltage regulation 320 on two outputs 309 that are connected in said electric energy adjustment unit in parallel).Like this, electric energy can carry out electric energy adjustment operation and is beneficial to finally supply power for the detecting of railway instrument better between the input 301 of electric energy adjustment unit and output 309.Wherein, comprise that the voltage stabilizing Processing Structure of electric capacity of voltage regulation 320 is carried out the voltage stabilizing processing to electric energy, 310 pairs of electric energy of full-bridge rectifier carry out the rectification processing and preferably can also have the AC-DC translation function.Should understand; Though in the embodiment shown in Figure 2 full-bridge rectifier 310 be arranged on the voltage stabilizing Processing Structure the upper reaches (at this moment; Electric energy carries out the rectification processing earlier and carries out the voltage stabilizing processing again), but, in other embodiments; The bridge rectifier structure also can be arranged on the downstream (at this moment, electric energy carries out the voltage stabilizing processing earlier and carries out the rectification processing again) of voltage stabilizing Processing Structure as required.
Preferably, in various embodiments of the present invention, said energy conversion device comprises:
The permanent magnet of clavate or non-clavate, it is connected to said vibration actuating structure to receive the vibrational energy from said track;
Conductive coil, it surrounds said permanent magnet and makes the said permanent magnet can reciprocating motion in the space that said conductive coil surrounds, the top of said conductive coil and the terminal pair of output that is electrically connected to said energy conversion device respectively.
Like this; The permanent magnet that is connected to track through the vibration actuating structure is because track vibration and corresponding sports; Relative motion takes place thus and between the conductive coil (it for example can remain on inactive state); Thereby in conductive coil, cause electric current, this electric current is along with permanent magnet reciprocating motion and from the output of the output of energy conversion device in the space that is surrounded by conductive coil, and can be supplied to the detecting of railway instrument it is supplied power.
Preferably, in various embodiments of the present invention, said permanent magnet is Permanentmagnet bar and has the driving end that is connected to said track and opposite free end.Like this, when Permanentmagnet bar because when track vibration and corresponding sports, its length make its on the more multi-thread circle next door of conductive coil process, help effectively causing electric current.
Preferably, in various embodiments of the present invention, said energy conversion device comprises nonmagnetic protection cylinder.In one embodiment; Said protection cylinder can center on said conductive coil; Said conductive coil is fixed on the inwall of said protection cylinder; Like this, permanent magnet when with track vibration in the space that conductive coil surrounds during corresponding sports, with fixing conductive coil generation relative motion and in conductive coil, produce electric current.In another embodiment; Said protection cylinder comprises inner core and the urceolus that is nested with each other; And said inner core is around said conductive coil, and said conductive coil is fixed between said inner core and the said urceolus, like this; Permanent magnet when with track vibration in the space that conductive coil surrounds during corresponding sports, with fixing conductive coil generation relative motion and in conductive coil, produce electric current.
It should be noted that said protection cylinder is nonmagnetic, thereby can not influence the mutual magnetoelectricity effect of permanent magnet and conductive coil on the one hand; On the other hand, said protection cylinder is fixed conductive coil with the mode that is fit to, to guarantee relative motion taking place to form electric current between conductive coil and permanent magnet; In addition; Protection cylinder is surrounded in it conductive coil (for example; The individual layer protection cylinder is surrounded conductive coil with inwall, and double-deck protection cylinder is enclosed in conductive coil between the inside and outside tube), can play mechanical protection effect and restriction to the permanent magnet of conductive coil and encirclement thereof.
Preferably, in various embodiments of the present invention, said protection cylinder directly contact with said track or through intermediate member be rigidly connected to said track or with said track.
Preferably, in various embodiments of the present invention, said vibration actuating structure comprises spring, and said permanent magnet is connected to track through said spring.Like this; The vibration of track is delivered to permanent magnet through spring; Though thereby the reciprocating motion of permanent magnet is derived from track vibration, with track vibration be nonsynchronous, like this; Permanent magnet corresponding reciprocating motion and form relative motion with conductive coil in the space that conductive coil surrounds forms electric current thus in conductive coil.
In one embodiment; Conductive coil (for example being fixed to the conductive coil of said protection cylinder) can not contact with track and keeps static; And the permanent magnet that is connected to track through spring forms electric current thus with track vibration corresponding reciprocating motion and form relative motion with static conductive coil in the space that conductive coil surrounds in conductive coil.
In another embodiment; Conductive coil (for example being fixed to the conductive coil of said protection cylinder) contacts with track or is rigidly connected and synchronously vibrates with track; And the permanent magnet that is connected to track through spring with track vibration in the space that conductive coil surrounds corresponding reciprocating motion and this reciprocating motion and track vibration be nonsynchronous (as previously mentioned); Therefore, permanent magnet and conductive coil form relative motion, in conductive coil, form electric current thus.Preferably; Protection cylinder contact with track and with track synchronous vibration; Make the conductive coil that is fixed to protection cylinder also with track synchronous vibration; In such embodiment, protection cylinder can constitute the part of the energy conversion device housing that surrounds each parts in the energy conversion device or be connected to the energy conversion device housing.
Preferably, in various embodiments of the present invention, said energy conversion device comprises: buffer structure, its end opening that is arranged on said conductive coil periphery or said conductive coil are sentenced and are prevented that said permanent magnet bump is impaired.Under the violent situation of track vibration; Being connected to the track permanent magnet may move significantly; May strike parts on every side; Also may come off and strike on the housing, thereby buffer structure is set avoids or to reduce the impaired possibility of permanent magnet bump, to improve the job security and the reliability of energy conversion device.
Fig. 3 is the sketch map of energy conversion device according to an embodiment of the invention.In the embodiment shown in fig. 3, energy conversion device comprises:
The permanent magnet 210 of clavate; It is connected to spring 101 in the said vibration actuating structure to receive the vibrational energy from said track; Said permanent magnet 210 has driving end (in Fig. 3, being shown as the upper end) and the opposite free end (in Fig. 3, being shown as the lower end) that is connected to said track, and wherein permanent magnet 210 is connected to said track at its driving end through spring 101 (and fixed structure 102);
Like this; The permanent magnet 210 that is connected to track through spring 101 is because track vibration and corresponding sports; Thereby causing electric current in the conductive coil 220 of its setting, this electric current is from output 209 outputs of energy conversion device, and can be supplied to the detecting of railway instrument it is supplied power.
In the embodiment shown in fig. 3; In order further to control the relative motion between permanent magnet 210 and the conductive coil 220 and to protect permanent magnet 210 to avoid colliding impaired; Can protection cylinder 250 be provided in conductive coil 220 peripheries, with guarantee through permanent magnet 210 in conductive coil 220 controllably corresponding sports produce electric current.
In the embodiment shown in fig. 3; Protection cylinder 250 is the individual layer tubes around conductive coil 220; Conductive coil 220 is fixed on the inwall of said protection cylinder 250; Like this, the permanent magnet 210 that is connected to track through spring 101 is when during corresponding reciprocating motion, relative motions taking place and in conductive coil 220, produce electric current with conductive coil 220 in the space that conductive coil 220 surrounds with track vibration.
In the embodiment shown in fig. 3; Protection cylinder 250 and the conductive coil 220 that is fixed in it can not contact with track or be rigidly connected; That is, with track, in this case; Conductive coil 220 keeps static, thereby reciprocating permanent magnet 210 relative motion takes place and in conductive coil 220, produce electric current with conductive coil 220 in conductive coil 220.
Preferably, in the embodiment shown in fig. 3, said energy conversion device comprises: buffer structure 230, its end opening (that is under shed) that is arranged on said conductive coil 220 are sentenced and are prevented that said permanent magnet 210 bumps are impaired.Under the violent situation of track vibration; Being connected to the track permanent magnet may move significantly; May strike parts on every side; Also may come off and strike on the housing, thereby buffer structure is set avoids or to reduce the impaired possibility of permanent magnet bump, thereby improve the job security and the reliability of energy conversion device.
According to a further aspect in the invention, a kind of detecting of railway instrument is provided, comprises:
Foregoing detecting of railway is used self-charging system.
In this case, described detecting of railway is installed or is integrated in self-charging system in the detecting of railway instrument and forms overall structure.
But, in other embodiments, said detecting of railway can be totally independent of the detecting of railway instrument with self-charging system, and is connected to the detecting of railway instrument and is its power supply.
In the detecting of railway system that constitutes by a plurality of said detecting of railway instruments; The detecting of railway described in various embodiments of the present invention that each detecting of railway instrument can have is separately used self-charging system; That is, said detecting of railway instrument is corresponding one by one the configuration with the respective track test with self-charging system.But, in other embodiment, as required, also can adopt single said detecting of railway to use self-charging system is coupled a plurality of detecting of railway instrument power supplies.
According to another aspect of the invention, a kind of self-charging method that is used for the detecting of railway instrument is provided.Fig. 4 is the flow chart that is used for the self-charging method of detecting of railway instrument according to an embodiment of the invention, and said method comprises:
The vibrational energy of track is converted into electric energy (shown in step 901); With
Said supply of electrical energy is arrived said detecting of railway instrument (shown in step 902).
Preferably, in various embodiments of the present invention, said conversion comprises: make the permanent magnet motion that is arranged in the conductive coil through said track vibration, in said conductive coil, to produce electric current.
Preferably, in various embodiments of the present invention, after the vibrational energy with track is converted into electric energy with said supply of electrical energy before the said detecting of railway instrument, at least a in further may further comprise the steps:
Said electric energy is carried out the AC-DC conversion;
Said electric energy is carried out bridge rectifier;
Said electric energy is carried out voltage stabilizing to be handled.
The detecting of railway that provides through various embodiments of the present invention is with self-charging system, detecting of railway instrument and self-charging method thereof, can be the power supply of detecting of railway instrument with the mode of reliable and energy-saving more.
In various embodiments of the present invention, be energy source with the track vibration energy, and can vibrational energy (mechanical energy) be converted into electric energy, and utilize the energy storage device store electrical energy, thereby realize power supply the detecting of railway instrument through energy conversion device.
Compared with prior art, various embodiments of the present invention also have following at least a advantage:
1, the detecting of railway instrument need not changed battery, has improved the service efficiency of detecting of railway instrument.
2, making full use of the track vibration Conversion of energy through energy conversion device is that electric energy is supplied power to the detecting of railway instrument, effectively realizes energy-saving and emission-reduction.
3, reduce the use of disposable battery, the protection environment.
Various embodiment provided by the invention can make up with any-mode as required each other, the technical scheme that obtains through this combination, also within the scope of the invention.
Obviously, under the situation that does not break away from the spirit and scope of the present invention, those skilled in the art can carry out various changes and modification to the present invention.Like this, if to these belonging within the scope of claim of the present invention and equivalent thereof with modification of changing of the present invention, then the present invention also will comprise these changes and modification.
Claims (10)
1. a detecting of railway is used self-charging system, it is characterized in that, comprising:
Be connected to the vibration actuating structure of track;
Energy conversion device, it is connected to said vibration actuating structure and is converted into electric energy with the vibrational energy from said track that said vibration actuating structure is received;
Energy storage device, it is connected to said energy conversion device receiving and to store said electric energy, and with said supply of electrical energy to the detecting of railway instrument.
2. detecting of railway according to claim 1 is used self-charging system, it is characterized in that, further comprises the electric energy adjustment unit, and it is connected between said energy conversion device and the said energy storage device, and comprises at least a in following:
The AC-DC transformational structure;
The bridge rectifier structure, it preferably includes the bridge rectifier that is made up of diode;
The voltage stabilizing Processing Structure, it preferably includes the electric capacity of voltage regulation on two outputs that are connected in said electric energy adjustment unit in parallel.
3. detecting of railway according to claim 1 and 2 is used self-charging system, it is characterized in that, said energy conversion device comprises:
The permanent magnet of clavate or non-clavate, it is connected to said vibration actuating structure to receive the vibrational energy from said track;
Conductive coil, it surrounds said permanent magnet and makes the said permanent magnet can reciprocating motion in the space that said conductive coil surrounds, the top of said conductive coil and the terminal pair of output that is electrically connected to said energy conversion device respectively.
4. detecting of railway according to claim 3 is used self-charging system, it is characterized in that, said energy conversion device comprises nonmagnetic protection cylinder, wherein,
Said protection cylinder is around said conductive coil, and said conductive coil is fixed on the inwall of said protection cylinder; Perhaps, said protection cylinder comprises inner core and the urceolus that is nested with each other, and said inner core is around said conductive coil, and said conductive coil is fixed between said inner core and the said urceolus;
Said protection cylinder directly contact with said track or through intermediate member be rigidly connected to said track or with said track.
5. use self-charging system according to each described detecting of railway in the claim 1 to 4, it is characterized in that, said vibration actuating structure comprises spring, and said permanent magnet is connected to track through said spring.
6. use self-charging system according to each described detecting of railway in the claim 1 to 5; It is characterized in that; Said energy conversion device comprises: buffer structure, its end opening that is arranged on said conductive coil periphery or said conductive coil are sentenced and are prevented that said permanent magnet bump is impaired.
7. a detecting of railway instrument is characterized in that, comprising:
Use self-charging system like each described detecting of railway in the claim 1 to 6.
8. a self-charging method that is used for the detecting of railway instrument is characterized in that, comprising:
The vibrational energy of track is converted into electric energy; With
Said supply of electrical energy is arrived said detecting of railway instrument.
9. self-charging method according to claim 8 is characterized in that,
Said conversion comprises: make permanent magnet reciprocating motion in the space that conductive coil surrounds through said track vibration, in said conductive coil, to produce electric current.
10. according to Claim 8 or 9 described self-charging methods, it is characterized in that, after the vibrational energy with track is converted into electric energy with said supply of electrical energy before the said detecting of railway instrument, at least a in further may further comprise the steps:
Said electric energy is carried out the AC-DC conversion;
Said electric energy is carried out bridge rectifier;
Said electric energy is carried out voltage stabilizing to be handled.
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| CN201210075430.0A CN102611185B (en) | 2012-03-21 | 2012-03-21 | Self charging system for track test, track test instrument and self charging method of self charging system |
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| CN201210075430.0A CN102611185B (en) | 2012-03-21 | 2012-03-21 | Self charging system for track test, track test instrument and self charging method of self charging system |
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| CN106160157A (en) * | 2016-07-22 | 2016-11-23 | 王家元 | A kind of generating equipment applied on rail limit |
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| CN110126877A (en) * | 2019-05-21 | 2019-08-16 | 山东交通学院 | One kind being based on technology of Internet of things railroad track vibration monitor system and method |
| CN113077960A (en) * | 2021-05-14 | 2021-07-06 | 河北冀胜轨道科技股份有限公司 | Solve bad choke transformer of using of track circuit shunting |
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| CN102611185B (en) | 2014-12-10 |
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