CN113392440A - Electronic turnout track beam design verification method and system - Google Patents
Electronic turnout track beam design verification method and system Download PDFInfo
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- CN113392440A CN113392440A CN202010164630.8A CN202010164630A CN113392440A CN 113392440 A CN113392440 A CN 113392440A CN 202010164630 A CN202010164630 A CN 202010164630A CN 113392440 A CN113392440 A CN 113392440A
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- 239000000725 suspension Substances 0.000 claims abstract description 40
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Abstract
The invention relates to the technical field of magnetic suspension and electronic turnouts and discloses a design verification method and system for an electronic turnout track beam. Wherein, the method comprises the following steps: determining the motion trail of the magnetic suspension train according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section; determining a reverse extension line track of the turnout section track beam according to an included angle theta between the turnout section track beam and the main line section track beam; and judging whether the design of the electronic turnout track beam meets the requirements or not according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam. From this, can realize verifying the design of electron switch track roof beam to in time revise the design of the electron switch track roof beam that does not satisfy the requirement, thereby avoid the train that the electron switch track roof beam that does not satisfy the requirement exists to hit the rail risk.
Description
Technical Field
The invention relates to the technical field of magnetic suspension and electronic turnouts, in particular to a design verification method and a system for an electronic turnout track beam.
Background
A magnetic levitation switch is a line connection device that switches a magnetic levitation vehicle from an original track to another track. When a train enters a turnout section, the train usually has initial speed and inertia, and if the track beam is not designed reasonably, the train is in danger of colliding with the track. Therefore, the size design of the magnetic suspension turnout track beam is particularly critical, and the size design of the track beam needs to be verified so as to ensure the safe and reliable operation of the train. However, there is no method in the prior art to verify the design of the rail beam dimensions.
Disclosure of Invention
The invention provides a design verification method and system for an electronic turnout track beam, which can solve the technical problem in the prior art.
The invention provides a design verification method for an electronic turnout track beam, wherein the electronic turnout comprises a main line section track beam and a turnout section track beam, the turnout section track beam penetrates out from a hollow section at the bottom of the main line section track beam, and the method comprises the following steps:
determining the motion trail of the magnetic suspension train according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section;
determining a reverse extension line track of the turnout section track beam according to an included angle theta between the turnout section track beam and the main line section track beam;
and judging whether the design of the electronic turnout track beam meets the requirements or not according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam.
Preferably, the movement path of the magnetic levitation vehicle is determined from the speed v and the acceleration a of the magnetic levitation vehicle entering the hollow section by the following formula:
and taking the upper right corner of the train at the moment of entering the hollow section as the origin of coordinates, wherein x is a coordinate in the horizontal direction, and y1 is a coordinate of the motion track in the vertical direction.
Preferably, the reverse extension line trajectory of the switch section track beam is determined according to the angle θ between the switch section track beam and the main line section track beam by the following formula:
y2＝-tanθx+b，
where y2 is the coordinate of the extended line trajectory in the vertical direction, and b is a constant.
Preferably, the judging whether the design of the electronic switch track beam meets the requirements according to the motion track and the reverse extension line track of the magnetic suspension train comprises:
judging whether the motion track of the maglev train and the reverse extension line track of the track beam of the turnout section have an intersection point or not;
if the intersection point does not exist, judging that the design of the electronic turnout track beam meets the requirement;
if the intersection point exists, comparing the coordinate of the intersection point in the horizontal direction with the preset length x' of the hollow section, and judging whether the design of the electronic turnout track beam meets the requirement or not according to the comparison result.
Preferably, the judging whether the design of the electronic turnout track beam meets the requirements according to the comparison result comprises the following steps:
and if the coordinates of all the intersection points in the horizontal direction are less than or equal to the preset length x' of the hollow section, judging that the design of the electronic turnout track beam meets the requirement, and otherwise, judging that the design of the electronic turnout track beam does not meet the requirement.
The invention also provides a design verification system for the electronic turnout track beam, wherein the electronic turnout comprises a main track section track beam and a turnout section track beam, the turnout section track beam penetrates out from a hollow section at the bottom of the main track section track beam, and the system comprises:
the first track determining module is used for determining the motion track of the magnetic suspension train according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section;
the second track determining module is used for determining the reverse extension line track of the turnout section track beam according to the included angle theta between the turnout section track beam and the main line section track beam;
and the judging module is used for judging whether the design of the electronic turnout track beam meets the requirements or not according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam.
Preferably, the movement path of the magnetic levitation vehicle is determined from the speed v and the acceleration a of the magnetic levitation vehicle entering the hollow section by the following formula:
wherein, the upper right corner of the train at the moment of entering the hollow section is taken as the origin of coordinates, x is the coordinate in the horizontal direction, and y is1Is the coordinate of the motion track in the vertical direction.
Preferably, the reverse extension line trajectory of the switch section track beam is determined according to the angle θ between the switch section track beam and the main line section track beam by the following formula:
y2＝-tanθx+b，
wherein, y2B is a constant for the coordinates of the elongated line trajectory in the vertical direction.
Preferably, the judging module judges whether the design of the electronic turnout track beam meets the requirements according to the motion track and the reverse extension line track of the magnetic levitation train comprises:
the judging module judges whether the motion track of the magnetic suspension train and the reverse extension line track of the track beam of the turnout section have an intersection point;
if the intersection point does not exist, the judgment module judges that the design of the electronic turnout track beam meets the requirement;
if the intersection point exists, the judgment module compares the coordinate of the intersection point in the horizontal direction with the preset length x' of the hollow section, and judges whether the design of the electronic turnout track beam meets the requirement or not according to the comparison result.
Preferably, the judging module judges whether the design of the electronic turnout track beam meets the requirements according to the comparison result, and the judging module comprises:
if the coordinates of all the intersection points in the horizontal direction are smaller than or equal to the preset length x' of the hollow section, the judgment module judges that the design of the electronic turnout track beam meets the requirements, and otherwise, the judgment module judges that the design of the electronic turnout track beam does not meet the requirements.
Through the technical scheme, the motion track of the magnetic suspension train can be determined according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section, the reverse extension line track of the turnout section track beam can be determined according to the included angle theta between the turnout section track beam and the main line section track beam, and whether the design of the electronic turnout track beam meets the requirement or not can be judged according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam. From this, can realize verifying the design of electron switch track roof beam to in time revise the design of the electron switch track roof beam that does not satisfy the requirement, thereby avoid the train that the electron switch track roof beam that does not satisfy the requirement exists to hit the rail risk.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a flowchart of a design verification method for an electronic switch track beam according to an embodiment of the invention;
FIG. 2 is a schematic view of a magnetically levitated electronic switch track beam according to an embodiment of the present invention;
fig. 3 is a side view of a magnetically levitated electronic switch track beam according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 shows a flowchart of an electronic switch track beam design verification method according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a magnetic suspension electronic turnout track beam according to an embodiment of the invention.
As shown in fig. 1, an embodiment of the present invention provides a design verification method for an electronic turnout track beam, where the electronic turnout includes a main track beam and a turnout track beam, and the turnout track beam penetrates through a hollow section at the bottom of the main track beam (as shown in fig. 2), and the method includes:
s100, determining the motion track of the magnetic suspension train according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section;
s102, determining a reverse extension line track of the turnout section track beam according to an included angle theta between the turnout section track beam and the main line section track beam;
and S104, judging whether the design of the electronic turnout track beam meets the requirements or not according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam.
Through the technical scheme, the motion track of the magnetic suspension train can be determined according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section, the reverse extension line track of the turnout section track beam can be determined according to the included angle theta between the turnout section track beam and the main line section track beam, and whether the design of the electronic turnout track beam meets the requirement or not can be judged according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam. From this, can realize verifying the design of electron switch track roof beam to in time revise the design of the electron switch track roof beam that does not satisfy the requirement, thereby avoid the train that the electron switch track roof beam that does not satisfy the requirement exists to hit the rail risk.
When the maglev train runs along the main track beam, the switch on the main track beam is controlled to be connected and the switch on the turnout track beam is controlled to be disconnected through the switch control circuit, so that the 8-line coils on the main track beam are in a closed state and the 8-line coils on the turnout track beam are in an off state; when the maglev train runs along the turnout section track beam, the switch on the turnout section track beam and the switch on the main line section track beam are controlled to be switched off through the switch control circuit, so that the 8-line coils on the turnout section track beam are in a closed state and the 8-line coils on the main line section track beam are in an off state. Therefore, the electronic turnout can be realized by controlling the on and off of the switch on the 8-line coil (namely, the conversion between the main line section and the turnout section) without moving the turnout beam, so that a complex driving device is omitted, and the turnout has the advantages of simplicity, easiness in realization and energy conservation.
For example, the 8-word coil may be an asymmetric 8-word coil.
Fig. 3 is a side view of a magnetically levitated electronic switch track beam according to an embodiment of the present invention.
According to an embodiment of the present invention, the motion trajectory of the magnetic levitation vehicle can be determined from the velocity v and the acceleration a of the magnetic levitation vehicle entering the hollow section by the following formula:
wherein, the upper right corner of the train at the moment of entering the hollow section is taken as the origin of coordinates, x is the coordinate in the horizontal direction, and y is1Is the coordinate of the motion track in the vertical direction.
That is, the movement locus of the train is a parabola.
Under ideal conditions, the train only makes parabolic motion under the action of gravity acceleration, and a is equal to g. But normally, the train is subjected to the downward force generated by the coil in the magnet, in addition to its own weight, and when the train is used as a parabolic motion by the cooperation of its own weight and the downward force generated by the coil,
where m is the train and magnet mass.
According to an embodiment of the present invention, the reverse extension line trajectory of the switch section track beam can be determined according to the included angle θ between the switch section track beam and the main line section track beam by the following formula:
y2＝-tanθx+b，
wherein, y2To extend the coordinates of the linear trajectory in the vertical direction, b is constant (can be obtained from known trajectory parameters).
One example of the movement path of a magnetic levitation vehicle and the path of the reverse extension of the track beam of a switch segment can be shown in fig. 3.
According to one embodiment of the invention, judging whether the design of the electronic turnout track beam meets the requirements according to the motion track and the reverse extension line track of the magnetic suspension train comprises the following steps:
judging whether the motion track of the maglev train and the reverse extension line track of the track beam of the turnout section have an intersection point or not;
if the intersection point does not exist, judging that the design of the electronic turnout track beam meets the requirement (namely, the risk of rail collision of the train does not exist);
if the intersection point exists, comparing the coordinate of the intersection point in the horizontal direction with the preset length x' of the hollow section, and judging whether the design of the electronic turnout track beam meets the requirement or not according to the comparison result.
For example, the two equations above may be combined (i.e., combined y)1And y2) Solving to judge whether there is an intersection point, if there is no solution, representing a parabola y1And a straight line y2No intersection point exists; if there are two solutions, then it represents a parabola y1And a straight line y2There are two intersections.
According to an embodiment of the invention, judging whether the design of the electronic turnout track beam meets the requirements according to the comparison result comprises the following steps:
and if the coordinates of all the intersection points in the horizontal direction are less than or equal to the preset length x' of the hollow section, judging that the design of the electronic turnout track beam meets the requirement, and otherwise, judging that the design of the electronic turnout track beam does not meet the requirement (namely, the risk of rail collision of the train exists).
For example, when the preset length x' is 1, when the speed v of the train entering the hollow section is 10m/s, the maximum unilateral pushing pressure of the train from the coil is 10N, and the maximum pushing acceleration is obtained
The method in the above embodiment of the invention can obtain the coordinate x of the two intersection points in the horizontal direction1＝0.255,x2And when the two coordinates are less than the preset length 1, the train can safely turn downwards without the risk of rail collision.
The embodiment of the invention also provides a design verification system for the electronic turnout track beam, wherein the electronic turnout comprises a main track section track beam and a turnout section track beam, the turnout section track beam penetrates out from a hollow section at the bottom of the main track section track beam, and the system comprises:
the first track determining module is used for determining the motion track of the magnetic suspension train according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section;
the second track determining module is used for determining the reverse extension line track of the turnout section track beam according to the included angle theta between the turnout section track beam and the main line section track beam;
and the judging module is used for judging whether the design of the electronic turnout track beam meets the requirements or not according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam.
Through the technical scheme, the motion track of the magnetic suspension train can be determined according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section, the reverse extension line track of the turnout section track beam can be determined according to the included angle theta between the turnout section track beam and the main line section track beam, and whether the design of the electronic turnout track beam meets the requirement or not can be judged according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam. From this, can realize verifying the design of electron switch track roof beam to in time revise the design of the electron switch track roof beam that does not satisfy the requirement, thereby avoid the train that the electron switch track roof beam that does not satisfy the requirement exists to hit the rail risk.
According to one embodiment of the invention, the movement path of the magnetic levitation vehicle is determined from the speed v (in m/s, for example) and the acceleration a of the magnetic levitation vehicle entering the route by the following equation:
wherein, the upper right corner of the train at the moment of entering the hollow section is taken as the origin of coordinates, x is the coordinate in the horizontal direction, and y is1Is the coordinate of the motion track in the vertical direction.
According to one embodiment of the present invention, the reverse extension line trajectory of the switch section track beam is determined according to the angle θ between the switch section track beam and the main line section track beam by the following formula:
y2＝-tanθx+b，
wherein, y2B is a constant for the coordinates of the elongated line trajectory in the vertical direction.
According to an embodiment of the invention, the judging module for judging whether the design of the electronic turnout track beam meets the requirements according to the motion track and the reverse extension line track of the magnetic suspension train comprises:
the judging module judges whether the motion track of the magnetic suspension train and the reverse extension line track of the track beam of the turnout section have an intersection point;
if the intersection point does not exist, the judgment module judges that the design of the electronic turnout track beam meets the requirement;
if the intersection point exists, the judgment module compares the coordinate of the intersection point in the horizontal direction with the preset length x' of the hollow section, and judges whether the design of the electronic turnout track beam meets the requirement or not according to the comparison result.
According to an embodiment of the present invention, the judging module judging whether the design of the electronic turnout track beam meets the requirements according to the comparison result comprises:
if the coordinates of all the intersection points in the horizontal direction are smaller than or equal to the preset length x' (the unit is m for example), the judgment module judges that the design of the electronic turnout track beam meets the requirement, and otherwise, the judgment module judges that the design of the electronic turnout track beam does not meet the requirement.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The design verification method of the electronic turnout track beam is characterized in that the electronic turnout comprises a main track section track beam and a turnout section track beam, wherein the turnout section track beam penetrates out of a hollow section at the bottom of the main track section track beam, and the method comprises the following steps:
determining the motion trail of the magnetic suspension train according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section;
determining a reverse extension line track of the turnout section track beam according to an included angle theta between the turnout section track beam and the main line section track beam;
and judging whether the design of the electronic turnout track beam meets the requirements or not according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam.
2. Method according to claim 1, characterized in that the movement path of the magnetic levitation vehicle is determined from the speed v and the acceleration a of the magnetic levitation vehicle entering the route section by the following equation:
wherein, the upper right corner of the train at the moment of entering the hollow section is taken as the origin of coordinates, x is the coordinate in the horizontal direction, and y is1Is the coordinate of the motion track in the vertical direction.
3. The method of claim 2, wherein the oppositely extending line paths of the switch section track beams are determined from the angle θ of the switch section track beams to the main section track beams by:
y2＝-tanθx+b，
wherein, y2B is a constant for the coordinates of the elongated line trajectory in the vertical direction.
4. The method of claim 3, wherein determining whether the design of the electronic switch track beam satisfies the requirements based on the movement trajectory and the reverse extension line trajectory of the maglev train comprises:
judging whether the motion track of the maglev train and the reverse extension line track of the track beam of the turnout section have an intersection point or not;
if the intersection point does not exist, judging that the design of the electronic turnout track beam meets the requirement;
if the intersection point exists, comparing the coordinate of the intersection point in the horizontal direction with the preset length x' of the hollow section, and judging whether the design of the electronic turnout track beam meets the requirement or not according to the comparison result.
5. The method of claim 4, wherein determining whether the design of the electronic switch track beam meets the requirements based on the comparison comprises:
and if the coordinates of all the intersection points in the horizontal direction are less than or equal to the preset length x' of the hollow section, judging that the design of the electronic turnout track beam meets the requirement, and otherwise, judging that the design of the electronic turnout track beam does not meet the requirement.
6. The utility model provides an electron switch track roof beam design verification system which characterized in that, electron switch include main line section track roof beam and switch section track roof beam, switch section track roof beam is followed the fretwork section of the bottom of main line section track roof beam is worn out, and this system includes:
the first track determining module is used for determining the motion track of the magnetic suspension train according to the speed v and the acceleration a of the magnetic suspension train entering the hollow section;
the second track determining module is used for determining the reverse extension line track of the turnout section track beam according to the included angle theta between the turnout section track beam and the main line section track beam;
and the judging module is used for judging whether the design of the electronic turnout track beam meets the requirements or not according to the motion track of the magnetic suspension train and the reverse extension line track of the turnout section track beam.
7. The system of claim 6, wherein the trajectory of the magnetic levitation vehicle is determined from the velocity v and the acceleration a of the magnetic levitation vehicle entering the hollow section by:
wherein, the upper right corner of the train at the moment of entering the hollow section is taken as the origin of coordinates, x is the coordinate in the horizontal direction, and y is1Is the coordinate of the motion track in the vertical direction.
8. The system of claim 7, wherein the oppositely extending line paths of the switch section track beams are determined from the angle θ of the switch section track beams to the main section track beams by:
y2＝-tanθx+b，
wherein, y2B is a constant for the coordinates of the elongated line trajectory in the vertical direction.
9. The system of claim 8, wherein the judging module judges whether the design of the electronic switch track beam meets the requirements according to the motion track and the reverse extension line track of the maglev train comprises:
the judging module judges whether the motion track of the magnetic suspension train and the reverse extension line track of the track beam of the turnout section have an intersection point;
if the intersection point does not exist, the judgment module judges that the design of the electronic turnout track beam meets the requirement;
if the intersection point exists, the judgment module compares the coordinate of the intersection point in the horizontal direction with the preset length x' of the hollow section, and judges whether the design of the electronic turnout track beam meets the requirement or not according to the comparison result.
10. The system of claim 9, wherein the determining module determines whether the design of the electronic switch track beam meets the requirements according to the comparison result comprises:
if the coordinates of all the intersection points in the horizontal direction are smaller than or equal to the preset length x' of the hollow section, the judgment module judges that the design of the electronic turnout track beam meets the requirements, and otherwise, the judgment module judges that the design of the electronic turnout track beam does not meet the requirements.
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| CN202010164630.8A CN113392440B (en) | 2020-03-11 | 2020-03-11 | Design verification method and system for electronic turnout track beam |
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| CN202010164630.8A CN113392440B (en) | 2020-03-11 | 2020-03-11 | Design verification method and system for electronic turnout track beam |
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|---|---|---|---|---|
| JP2009144454A (en) * | 2007-12-17 | 2009-07-02 | Hitachi Ltd | Straddling type monorail turnout |
| CN103696331A (en) * | 2013-12-05 | 2014-04-02 | 中铁宝桥集团有限公司 | Monorail traffic straight and curved mobile turnout |
| WO2019052567A1 (en) * | 2017-09-18 | 2019-03-21 | 中车株洲电力机车研究所有限公司 | Virtual turnout system and method for virtual rail vehicle |
| CN109629351A (en) * | 2019-01-23 | 2019-04-16 | 中车青岛四方机车车辆股份有限公司 | A kind of track switch of the track for magnetic-levitation train |
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2020
- 2020-03-11 CN CN202010164630.8A patent/CN113392440B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009144454A (en) * | 2007-12-17 | 2009-07-02 | Hitachi Ltd | Straddling type monorail turnout |
| CN103696331A (en) * | 2013-12-05 | 2014-04-02 | 中铁宝桥集团有限公司 | Monorail traffic straight and curved mobile turnout |
| WO2019052567A1 (en) * | 2017-09-18 | 2019-03-21 | 中车株洲电力机车研究所有限公司 | Virtual turnout system and method for virtual rail vehicle |
| CN109629351A (en) * | 2019-01-23 | 2019-04-16 | 中车青岛四方机车车辆股份有限公司 | A kind of track switch of the track for magnetic-levitation train |
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