JP5951766B2 - Rail vehicle with LED headlamp - Google Patents

Description

  The present invention relates to a rail vehicle, and in particular, can illuminate a wide range from the front of the traveling direction to a distance, and can switch between the amount of light emitted from a plurality of light sources and the irradiation direction (optical axis). The present invention relates to a rail vehicle including an LED headlamp having a function of complementing a function lost by another light source when a part of the light source constituting the headlamp is lost.

  Generally, facilities such as a platform, rails, signals, and power supply equipment that are used for passengers to get on and off are arranged along the rail, and many personnel are working in these facilities. In order for these staff members to easily recognize the approach and the distance of the rail vehicle, train signs are provided at the front and rear portions of the rail vehicle. The train sign provided at the foremost portion facing the traveling direction is a headlamp composed of an incandescent lamp and a high-pressure discharge lamp, and the train sign provided at the rearmost portion is a tail lamp composed of a red light.

  In order to suppress the dazzling of oncoming train drivers and home staff, the headlamps provided on the rail vehicle are selectively lit with a plurality of light sources having a function of changing the optical axis or having different optical axes. Function is provided.

  Although it is not an example of a rail vehicle, Patent Document 1 discloses an illumination control device including a plurality of light sources having different optical axes, and when any one of the light sources fails, the failure is detected and failed. A technique for forcibly lighting another light source as an alternative to the light source is disclosed.

Japanese Patent Laid-Open No. 4-292231

  In recent years, light emitting diodes (LEDs) that consume less power and generate less heat instead of incandescent lamps and high-pressure discharge lamps are increasingly used in lighting devices. When an LED element is used as a light source of a headlamp provided in a rail vehicle, light emitted from the LED element has a strong linearity and a property that does not easily diffuse compared to that of an incandescent lamp or a high-pressure discharge lamp. There is a concern that a scene that promotes a feeling or a scene in which only a far distance in the traveling direction or only the front is illuminated and a wide range from the near to the far is not illuminated.

  For this reason, when using the LED for the headlamp, the function of selecting the optical axis or reducing the amount of light of the entire headlamp in order to suppress the dazzling feeling of the home staff and the crew of the opposite train, When any of the plurality of light sources constituting the lighting lamp fails, the reliability is required to replace the failed light source with another light source. Furthermore, it is desired that the driving operation for suppressing dazzling after any one of the light sources fails is not a complicated operation.

  The purpose of the present invention is to illuminate a wide range far from the front, and to provide a dimming function that changes the optical axis and reduces the overall light quantity to suppress the dazzling feeling, when one of the light sources fails Provides a rail vehicle with LED headlamps that has the reliability that can replace other light sources as a replacement for a failed light source and the operability that reduces the dazzling feeling after any one of the light sources fails It is to be.

  In order to achieve the above object, a rail vehicle provided with the LED headlamp of the present invention includes, as basic means, a plurality of distant light sources that illuminate distant, a plurality of near light sources that illuminate the vicinity, the distant light source and the vicinity. An LED headlamp composed of a power source for supplying power to the light source, and having one light source group composed of the far light source and the near light source, and the other light source group composed only of the near light source. The one light source group or the other light source group is selectively turned on.

  The one light source group is a first far light source, a second far light source, and a first near light source, and the other light source group is a second near light source, and supplies power to the first near light source. A first neighboring light source connecting line; a second neighboring light source connecting line that supplies power to the second neighboring light source; a connecting line that connects the first neighboring light source connecting line and the second neighboring light source connecting line; and the connection. A switch provided on the line, and a current detection device that detects a current of the second nearby light source, and controls the switch according to an output of the current detection device.

  According to the present invention, it illuminates a wide range from the near side to the far side, and has a dimming function for changing the optical axis and reducing the total light amount in order to suppress dazzling feeling, when one of the light sources breaks down Provides a rail vehicle equipped with LED headlamps that have reliability that can replace other light sources in place of the failed light source, and operability that reduces the dazzling feeling after any one of the light sources fails can do.

FIG. 1 is a front view showing an example of a headlamp provided in a railway vehicle. FIG. 2 is a front view illustrating the headlamp according to the first embodiment. 3 is a cross-sectional view taken along the line AA of the headlamp (Example 1) shown in FIG. FIG. 4 is a circuit diagram of the headlamp (Example 1) shown in FIG. FIG. 5 is a front view of the headlamp according to the second embodiment. 6 is a cross-sectional view of the headlamp (Example 2) of FIG. 5 taken along the line BB. FIG. 7 is a front view of the headlamp according to the third embodiment. FIG. 8 is a perspective view of a headlamp according to a fourth embodiment. FIG. 9 is a perspective view of the headlamp according to the fifth embodiment. FIG. 10 is a perspective view of the headlamp according to the sixth embodiment. FIG. 11 is a circuit diagram of a headlamp according to the sixth embodiment.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention relates to a headlamp provided in a rail vehicle that travels along a laid rail. Rail vehicles include railcars, streetcars, monorail vehicles, new transportation system vehicles, and the like. In the embodiments described below, railcars will be described as examples of rail vehicles.

  FIG. 1 is a front view showing an example of a headlamp provided in the railway vehicle 10. In front of the leading car of the railway vehicle 10, a crew room where a driver is in charge is provided, and windows, wipers, through doors, and the like are provided. Along the tracks (rails), various facilities such as a platform, a branching device, a railroad crossing, a signal, and a power feeding facility are provided for passengers to get on and off, and staff members are working in these facilities. The front lamp 1 is provided as a front sign and the tail lamp 2 is provided as a rear sign on the front of the foremost part and the rearmost part of the railway car 10 so that these staff members can easily recognize the approach and distance of the railway car 10.

In the case of the railway vehicle 10, since it travels along the track, there are only two types of traveling directions, forward and backward. Therefore, the headlamp 1 and the tail lamp 2 are provided with light quantities that can recognize the presence of the railway vehicle from a distance. If it is good. Since the headlamp 1 and the taillight 2 are required to be turned on at night or when traveling through a long tunnel, the headlamp 1 or the taillight 2 may be suspended if a failure occurs.

  In recent years, in addition to the function as a conventional sign, in order to attract attention to pedestrians and cars crossing the railroad crossing, and to widen the front view of the crew (especially the driver), the amount of light of the headlamp 1 is increased. There are increasing cases of lighting up even during the daytime.

FIG. 2 is a front view showing the headlamp of the first embodiment, and FIG. 3 is a cross-sectional view taken along the line AA of the headlamp shown in FIG. The headlamp 1 includes a first far light source 21H and a second far light source 22H that include an optical axis 12H that illuminates a distance in the traveling direction of the railway vehicle 10, and an optical axis 14L that illuminates the vicinity (front) of the railway vehicle 10 in the traveling direction. And a cover 5 (see FIG. 3) that covers these light sources. First distant light source 21H and a second distant sources 22H, first near the light source 31L and the second near the light source 32L, a plurality of LED that emits light when a voltage is applied in the forward direction (light-emitting diode, L ight E mitting D iode) It is composed of the element 18.

  FIG. 4 is a circuit diagram of the headlamp (Example 1) shown in FIG. Each light source of the first far light source 21H and the second far light source 22H, and the first near light source 31L and the second near light source 32L has a plurality of LED elements 18 connected in series. 21H, 22H, 31L, and 32L are connected to the power supply 15 in parallel.

  In the driver's cab of the railway vehicle 10, a crew member (especially a driver) is provided with a far optical axis 12H and a near optical axis 14L emitted from the headlamp 1 in order to prevent a driver of an oncoming vehicle or a home attendant from being dazzled. There is provided a change-over switch 11 for arbitrarily switching between lighting of one light source group and lighting of the other light source group consisting of only the adjacent optical axis 14L.

  The change-over switch 11 includes one contact group including a contact 51H, a contact 52H, and a contact 61L for turning on and off each light source of the first far light source 21H, the second far light source 22H, and the first near light source 31L constituting one light source group. , And a contact 62L which is the other contact group for turning on and off the second nearby light source 32L forming the other light source group.

  The light radiated from the LED element 18 is highly straight and has a feature that it is difficult to diffuse. For this reason, the first far light source 21H and the second far light source 22H that have the optical axis 12H and illuminate far away, the first near light source 31L that has the optical axis 14L and illuminate the vicinity, and the second far light source 32L. When a circuit for selectively lighting these is configured separately, only the far side in the traveling direction is illuminated, and the front (near) in the traveling direction is not illuminated, but the near (near) in the traveling direction of the railway vehicle 10. There is a concern that inconveniences such as difficulty in grasping jumping out of the camera may occur.

  In order to eliminate the concern, the first far light source 21H, the second far light source 22H, and the first near light source 31L are set as one light source group, the second near light source 32L is set as the other light source group, and one light source A circuit capable of selectively lighting the group and the other light source group is configured.

  With the above configuration, when the railway vehicle 10 travels between stations without an oncoming vehicle, the changeover switch 11 is operated to close one contact group, and the first far light source 21H, the second far light source 22H, Since the first vicinity light source 31L can be energized to illuminate a wide area from the vicinity of the traveling direction of the railway vehicle 10 to the distance, the crew can travel in a wide range from immediately before (in front of) the railway vehicle 10 to the distance. Obstacles that occur can be easily recognized.

  Further, when the railcar 10 enters the station or there is an oncoming vehicle, the contact switch 11 is operated to open one contact group (contact 51H, contact 52H, contact 61L) and the other contact 62L. By closing only the second vicinity light source 32L and illuminating only the vicinity of the traveling direction of the railway vehicle 10, it is possible to prevent the oncoming vehicle and station staff from feeling dazzled. At this time, since the total light amount of the other light source that illuminates only the vicinity can be made smaller than the total light amount of the one light source that illuminates the vicinity and the distant place, Suppression can be promoted.

  Furthermore, since a plurality of distant light sources and a plurality of near light sources are provided and these light sources are connected in parallel to the power supply 15, any one of the plurality of distant light sources or a plurality of near light sources is included. Even if a malfunction occurs in any of the above, since the continuous light emission from a distant or nearby light source that maintains soundness can be suppressed and the predetermined function can be maintained, the operation of the railway vehicle 10 is continued. be able to.

  A connection line for supplying power to the first nearby light source 31L included in one light source group and a connection line for supplying power to the second nearby light source 32L of the other light source group are contacts (switches) 82L. Are connected via a backflow prevention diode 19. A connection line that supplies power to the second nearby light source 32L is provided with a current detection device 42L that monitors the current flowing through the connection line, and monitors the soundness of the second nearby light source 32L.

  When any of the plurality of LED elements 18 constituting the second neighboring light source 32L is broken, the current flowing through the connection line that supplies power to the second neighboring light source 32L decreases. The current detection device 42L detects that a problem has occurred in the second nearby light source 32L from the decrease in current.

  The current detection device 42L that has detected the malfunction operates the backup switch 102 to close the switch 82L that is normally open. The backup switch 102 may be handled manually after the crew member confirms the output of the current detection device 42L, or may be turned on automatically without the crew member's operation.

  After the backup switch 102 is turned on, when the crew member (especially the driver) handles the changeover switch 11 and closes the contact 62L to illuminate only the vicinity of the traveling direction of the railway vehicle 10, the contact 62L is opened and closed from the power supply 15. Power is supplied only to the first near light source 31L (one light source) via the detector 82L and the backflow prevention diode 19, and only the first near light source 31L is lit. In other words, the backup switch 102 turns on the first near light source 31L instead of the second near light source 32L that has been turned off, so that the vicinity of the traveling direction of the railway vehicle 10 can be illuminated.

  After the backup switch 102 is turned on, when the changeover switch 11 is handled and the contacts 51H, 52H, and 61H are closed, the first far light source 21H, the second far light source 22H, and the first near light source 31L (one group) Can be illuminated to illuminate a wide range from the vicinity of the traveling direction of the railway vehicle 10 to the distant place.

  The handling of the changeover switch 11 after the backup switch 102 is turned on is no different from the handling before the backup switch 102 is turned on, and the driver moves from the vicinity to the distance by handling the conventional changeover switch 11. The irradiation of the range and the irradiation of only the vicinity (optical axis switching) can be switched, and the operation for suppressing the dazzling does not become complicated.

  The backflow prevention diode 19 prevents unnecessary lighting by suppressing current from flowing from the contact 61L to the second nearby light source 32L via the switch 82L when the backup switch 102 is accidentally turned on. .

  FIG. 5 is a front view of the headlamp of the second embodiment, and FIG. 6 is a cross-sectional view of the headlamp (second embodiment) of FIG. In FIG. 5, the first far light source 21H and the second far light source 22H are arranged in the lower stage, and the first neighboring light source 31L and the second neighboring light source 32L are arranged in the upper stage.

  FIG. 7 is a front view of the headlamp according to the third embodiment. 2 and 5, the rectangular headlamp 1 is provided. In FIG. 7, the shape of the headlamp 1 is changed from a rectangle to a circle. The circular headlamp 1 is divided into four equal parts in the vertical and horizontal directions with respect to the center of the circular shape, and the first far light source 21H and the second far light source 22H are arranged in the upper stage, and the lower stage. The first vicinity light source 31L and the second vicinity light source 32L are provided.

FIG. 8 is a perspective view of the headlamp of the fourth embodiment, and FIG. 9 is a perspective view of the headlamp of the fifth embodiment. The headlamp 1 shown in FIG. 8 has a first far light source 21H, a second far light source 22H, a first near light source 31L, and a second near light source 32L arranged alternately in the horizontal direction. The illustrated headlamp 1 is one in which these light sources are alternately arranged in the vertical direction.

The form and arrangement of each light source constituting the headlamp 1 shown in FIGS. 2 to 5 shown in FIGS. 5 to 9 are the degrees of freedom in designing the front surface (wife face) of the leading vehicle of the railway vehicle 10. It is an example for enhancing The headlamps 1 (Embodiment 2 to Embodiment 5) shown in FIGS. 5 to 9 are provided with the circuit diagram shown in FIG. 4, and thus the effects shown in Embodiment 1, that is, the far light source and the near light source. The circuit configuration that can turn on and off at the same time compensates for the characteristics of the LED's strong straightness and difficulty in diffusing, and the effect that the driver can check a wide range from the front to the far side of the traveling direction, and the optical axis that illuminates only the far, near and near And a switch that switches between the total amount of light and the effect of suppressing glare of station staff and oncoming train drivers, and a device that detects a failure of the light source and handles the backup switch based on the output of this failure detection device By replacing the failed light source with a healthy light source, and providing multiple distant light sources and multiple nearby light sources and connecting them in parallel to the power supply It is possible to achieve the effect of improving the reliability of the square and near the light source.

  FIG. 10 is a perspective view of the headlamp of the sixth embodiment, and FIG. 11 is a circuit diagram of the headlamp of the sixth embodiment. The headlamp 1 shown in FIG. 10 is disposed in the upper stage in the horizontal direction and has three adjacent light sources 31L, 32L, and 33L having the optical axis 14L, and in the lower stage in the horizontal direction and the optical axis. And three remote light sources 21H, 22H, and 23H having 12H.

  Each of the first near light source 31L, the second near light source 32L, and the third near light source 33L, and the first far light source 21H, the second far light source 22H, and the third far light source 23H includes a plurality of light sources connected in series. Each of the light sources 21H, 22H, 23H, 31L, 32L, and 33L forms a parallel circuit in which the voltage of the power supply 15 acts equally. The second near light source 32L and the second far light source 22H are spare light sources that are used when a malfunction occurs in another light source.

  A connection line for supplying power to the spare second vicinity light source 32L via the backflow prevention diode 19 and the contact 81L from a connection line for supplying power to the first vicinity light source 31L, and a connection for supplying power to the third vicinity light source 33L A connection line for supplying power from the line to the spare second near light source 32L via the backflow prevention diode 19 and the contact 83L is wired.

  Similarly, a connection line that supplies power from the connection line that supplies power to the first far light source 21H to the spare second far light source 22H via the backflow prevention diode 19 and the contact 72H, and power to the third far light source 23H. A connection line for supplying power from the connection line to be supplied to the spare second far light source 22H via the backflow prevention diode 19 and the contact 71H is wired.

  Each connection line that supplies power to each light source of the first vicinity light source 31L and the third vicinity light source 33L includes current detection devices 41L and 43L that monitor the current flowing through each connection line. Health is monitored. Similarly, each connection line that supplies power to each light source of the first far light source 21H and the third far light source 23H includes current detection devices 41H and 43H that monitor the current flowing through each connection line. The health of the light source is monitored.

Changeover switch 11, a first distal light source 21H, third distant light source 23H and the first neighboring source contact turns on and off the respective light sources 31L 51H, and one contact group consisting of the contacts 53H and the contact 61L, the third near the light source 33 L And a contact 63L, which is the other contact group for turning on and off. That is, the first far light source 21H and the third far light source 23H, and the first near light source 31L are used as one light source group, the third near light source 33L is used as the other light source group, and the one light source group and the other light source group are used. And a circuit that can selectively light up .

  With the above configuration, when the railway vehicle 10 travels between stations without an oncoming vehicle, the changeover switch 11 is operated to close one contact group, and the first far light source 21H, the third far light source 23H, Since the first vicinity light source 31L can be energized to illuminate a wide area from the vicinity of the traveling direction of the railway vehicle 10 to the distance, the crew can travel in a wide range from immediately before (in front of) the railway vehicle 10 to the distance. Obstacles that occur can be easily recognized.

  Further, when the railway vehicle 10 enters the station or there is an oncoming vehicle, the contact switch 11 is operated to open one contact group (contact 51H, contact 53H, contact 61L) and the other contact 63L. By turning on only the third vicinity light source 33L and illuminating only the vicinity of the traveling direction of the railway vehicle 10, it is possible to suppress the oncoming vehicle and station staff from feeling dazzled. At this time, since the total light amount of the other light source that illuminates only the vicinity can be made smaller than the total light amount of the one light source that illuminates the vicinity and the distant place, Suppression can be promoted.

  Furthermore, since a plurality of distant light sources and a plurality of near light sources are provided and these light sources are connected in parallel to the power supply 15, any one of the plurality of distant light sources or a plurality of near light sources is included. Even if a malfunction occurs in any of the above, since the continuous light emission from a distant or nearby light source that maintains soundness can be suppressed and the predetermined function can be maintained, the operation of the railway vehicle 10 is continued. be able to.

  When any of the plurality of LED elements 18 constituting the first vicinity light source 31L is broken, the current flowing through the connection line that supplies power to the first vicinity light source 31L decreases. The current detection device 41L detects that a failure has occurred in the first nearby light source 31L from the decrease in current. Based on the output of the current detection device 41L that has detected the malfunction, the backup switch 101 is operated to close the switch 81L that is normally open.

  Similarly, when a failure occurs in the third near light source 33L, the current detection device 43L detects this failure, operates the backup switch 103, and closes the switch 83L that is normally open.

  Similarly, when a failure occurs in the first far light source 21H, the current detection device 41H detects this failure and operates the backup switch 91 to close the switch 72H that is normally open.

  Similarly, when a failure occurs in the third far light source 23H, the current detection device 43H detects this failure and operates the backup switch 93 to close the normally open switch 71H.

  Each backup switch 91, 93, 101, 103 may be handled after the crew member confirms the output of the current detection devices 41L, 43L, 41H, 43H, or may be automatically turned on without the crew member's operation. .

  That is, the headlamp 1 of the sixth embodiment shown in FIGS. 10 and 11 is replaced with a nearby light source in which a failure occurs when one or both of the first or third nearby light sources 31L and 33L have a failure. In addition to constituting a circuit that can turn on the spare second nearby light source 32L, when a failure occurs in one or both of the first or third remote light sources 21H and 23H, the spare second light source 32L is replaced with a spare second light source. 2 A circuit that can turn on the remote light source 22H is configured.

  In the following, when the change-over switch 11 is handled by a crew member (especially the driver) after the backup switch 93 is turned on (the contact 71H is closed) after a specific malfunction occurs in the third far-field light source 23H. The lighting operation of the headlamp 1 will be described.

  When a crew member (especially a driver) handles the change-over switch 11 and closes the contact 63L to illuminate only the vicinity of the traveling direction of the railcar 10, and opens the contacts 51H, 53H, 61L, only the third vicinity light source 33L Is lit, and only the vicinity of the traveling direction of the railway vehicle 10 can be illuminated.

  Next, a crew member (especially a driver) handles the changeover switch 11 to open the contact 63L and close the contacts 51H, 53H, and 61L to illuminate a wide range from the vicinity of the traveling direction of the railway vehicle 10 to the distance. Then, the third near light source 33L is turned off, and the first near light source 31L, the first far light source 21H, and the spare second far light source 22H are turned on, and a wide range from near to far can be illuminated.

  The handling of the changeover switch 11 after the backup switch 93 is turned on is no different from the handling before the backup switch 93 is turned on, and the driver goes from the vicinity to the distance by handling the conventional changeover switch 11. It is possible to switch between irradiation of the range and irradiation of only the vicinity (optical axis switching), and the operation for suppressing dazzling does not become complicated.

  The above description is a case where the backup switch 93 is handled due to a failure in the third far light source 23H, but when a failure occurs in the first far light source 21H, the first and third neighboring light sources 31L, 33L. Similarly, the contacts (72H, 81L, 83L) corresponding to the respective light sources (21H, 31L, 33L) in which the backup switches 91, 101, 103 corresponding to the respective light sources are handled and the trouble occurs are closed, Since a circuit capable of turning on an alternative light source is configured, description thereof will be omitted.

  Note that the backflow prevention diode 19 provided in the sixth embodiment prevents unnecessary lighting of each light source corresponding to each backup switch when the backup switches 91, 93, 101, and 103 are erroneously turned on. Is provided.

  By providing each spare light in one light source group and the other light source group, higher reliability can be obtained, so that suspension due to a malfunction of the headlamp 1 can be suppressed.

DESCRIPTION OF SYMBOLS 1 ... Headlight 2 ... Taillight 4 ... Light source 5 ... Cover 10 ... Railway vehicle 11 ... Switching SW (HL)
12H ... Far optical axis 14L ... Near optical axis 15 ... Power source 16 ... Light source 18 ... LED element 19 ... Backflow prevention diode 21H ... First far light source 22H ... Second far light source 23H ... Third far light source 31L ... First near light source 32L ... 2nd vicinity light source 33L ... 3rd vicinity light source 41H ... Current detection device 42H ... Current detection device 43H ... Current detection device 41L ... Current detection device 42L ... Current detection device 43L ... Current detection device 51H-53H ... Contact 61L-63L ... Contacts 71H to 73H ... Switches 81L to 83L ... Contacts 91 ... Backup switch 93 ... Backup switch 101 ... Backup switch 103 ... Backup switch

Claims (4)

Multiple distant light sources that illuminate distant,
A plurality of nearby light sources that illuminate the neighborhood;
In a rail vehicle comprising an LED headlamp composed of a power source that supplies power to the far light source and the near light source,
One light source group consisting of the far light source and the near light source;
The other light source group consisting only of the near light source,
The one light source group is a first far light source, a second far light source, and a first near light source,
The other light source group is a second nearby light source,
A first nearby light source connection line for supplying power to the first nearby light source;
A second nearby light source connection line for supplying power to the second nearby light source;
A connection line connecting the first nearby light source connection line and the second nearby light source connection line;
A switch provided in the connection line;
A current detection device for detecting a current of the second nearby light source;
Further comprising
A rail vehicle comprising an LED headlamp, wherein the switch is controlled according to an output of the current detection device, and the one light source group or the other light source group is selectively turned on. Multiple distant light sources that illuminate distant,
A plurality of nearby light sources that illuminate the neighborhood;
A power source for supplying power to the far light source and the near light source;
In a rail vehicle equipped with an LED headlamp composed of:
One light source group consisting of the far light source and the near light source;
The other light source group consisting only of the near light source,
The one light source group is a first far light source, a second far light source, and a first near light source,
The other light source group is a second nearby light source,
A preliminary far light source that replaces the first far light source and the second far light source;
A spare near light source that replaces the first near light source and the second near light source;
A first remote light source connection line for supplying power to the first remote light source;
A second far light source connection line for supplying power to the second far light source;
A first nearby light source connection line for supplying power to the first nearby light source;
A second nearby light source connection line for supplying power to the second nearby light source;
A spare far light source connection line for supplying power to the spare far light source;
A spare near light source connection line for supplying power to the spare near light source;
A first far light source spare connection line connecting the first far light source connection line and the spare far light source connection line;
A second far light source spare connection line connecting the second far light source connection line and the spare far light source connection line;
A first nearby light source spare connection line connecting the first neighboring light source connection line and the spare neighboring light source connection line;
A second nearby light source spare connection line connecting the second neighboring light source connection line and the spare neighboring light source connection line;
Each switch provided in the first remote light source preliminary connection line, the second remote light source preliminary connection line, the first nearby light source preliminary connection line, and the second nearby light source preliminary connection line;
Each current detection device provided in the first far light source connection line, the second far light source connection line, the first near light source connection line, and the second near light source connection line is further provided. ,
According to the output of each of the current detection devices, each of the switches is controlled to turn on the auxiliary far light source and the auxiliary near light source, and selectively select the one light source group or the other light source group. A rail vehicle equipped with an LED headlamp characterized by being lit. In the rail vehicle described in claim 1 or 2 ,
A rail vehicle comprising an LED headlamp, wherein the distant light source and the near light source are connected in parallel to the power source. In the rail vehicle described in claim 1 or 2 ,
A rail vehicle comprising an LED headlamp, wherein the far light source and the near light source are a plurality of LED elements connected in series.

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