CN217825428U

CN217825428U - Color temperature adjustable lighting system for rail transit

Info

Publication number: CN217825428U
Application number: CN202221952107.2U
Authority: CN
Inventors: 董超; 潘海艳; 郑志翠; 赵汗青
Original assignee: Yeal Electric Co ltd
Current assignee: Yeal Electric Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-15
Anticipated expiration: 2032-07-27

Abstract

A color temperature adjustable lighting system for rail transit comprises a vehicle power supply, a train man-machine interaction system, a train broadcast signal system, a train control and management system, a color adjustable controller, an LED centralized control power supply and an LED light-emitting module, wherein the color adjustable controller is electrically connected with the vehicle power supply, is in communication connection with the train broadcast signal system and is in communication connection with the LED centralized control power supply; the LED centralized control power supply is electrically connected with the vehicle power supply and is also electrically connected with an LED light-emitting module of a train passenger room; the LED light-emitting module of one train passenger room is powered by two LED centralized control power supplies, and a mutual redundant wiring mode is adopted between the two LED centralized control power supplies.

Description

Color temperature adjustable lighting system for rail transit

Technical Field

The utility model belongs to the technical field of the track traffic illumination, concretely relates to be used for adjustable colour temperature lighting system of track traffic.

Background

Under the background of concept requirements of individuation and science and technology perception of the railway passenger car, the interior illumination single color or cold and warm two-color illumination of the railway passenger car compartment cannot meet the requirements and the aesthetic feeling of the public. The existing rail transit passenger room lighting has single color, and different intelligent lighting effects in the carriage cannot be created by adjusting the color of a light source; and the current rail transit adjustable color temperature controllers are controlled independently, and when the output scheme of one adjustable color temperature controller is changed, the synchronous updating output scheme of other adjustable color temperature controllers cannot be achieved. At present, the rail passenger car solves the problems in a mode that car group members manually set the problems, and the problem of labor consumption exists.

Therefore, the limited inner space of the railway passenger car needs to be realized through the color temperature adjustable lighting system, the individuation and the technological sense of the railway passenger car are visually improved under the assistance of lighting, and the consumption of manpower is reduced.

SUMMERY OF THE UTILITY MODEL

The technical scheme of the utility model is that:

a color temperature adjustable lighting system for rail transit comprises a vehicle power supply, a train man-machine interaction system, a train broadcast signal system, a train control and management system, a color adjustable controller, an LED centralized control power supply and an LED light-emitting module, wherein the color adjustable controller is electrically connected with the vehicle power supply, is in communication connection with the train broadcast signal system and is in communication connection with the LED centralized control power supply; the LED centralized control power supply is electrically connected with the power supply of the vehicle and also electrically connected with an LED light-emitting module of a train passenger room; the LED light-emitting module of one train passenger room is powered by two LED centralized control power supplies, and a mutual redundant wiring mode is adopted between the two LED centralized control power supplies.

Furthermore, the color adjustable controller comprises a shell, a control circuit board arranged in the shell, an input port in communication connection with the control circuit board, an output port, a communication port, a photosensitive interface, an LCD (liquid crystal display) and operation keys, wherein a train broadcasting signal system and the operation keys are bundled and then connected into the input port, an LED centralized control power supply is connected with the output port, the photosensitive interface X4 is a light intensity sensor, and the communication port is used for communication among different color adjustable controllers.

Further, the input port, the output port and the communication port all adopt RS485 communication interfaces.

Further, the LED centralized control power supply is provided with a fault feedback circuit, and the fault feedback circuit is in communication connection with the train control and management system.

Furthermore, the LED light-emitting module consists of a plurality of RGB lamp beads connected together in parallel, and each RGB lamp bead comprises a red light diode, a green light diode and a blue light diode.

Adopt above-mentioned technical scheme the utility model discloses following beneficial effect can be brought:

the utility model discloses satisfy the various operational environment of rail train, through the operational mode of PWM pulse signal intermittent type work, utilize the duty cycle to adjust the voltage at LED both ends to adjust the electric current that flows through LED, the electric current that flows through is then LED more bright more greatly, and the electric current that flows through is then LED dark more less. By utilizing the principle to realize the control of the color gradual change of the three-color diode in the LED, more colors can be combined to realize the illumination in the vehicle, the diversity is brought to the illumination of the carriage, and the comfort level of passengers is improved; meanwhile, the adjustable color temperature controller realizes the synchronism of the whole vehicle equipment through the RS485 communication characteristic; the color temperature controllers are connected through the communication interface, and the output scheme can be synchronized to other adjustable color temperature controllers through the communication interface only by setting the output scheme of one of the color temperature controllers, so that the occupancy rate of manpower for the train crew is reduced; and the increase of the feedback function of the LED centralized control power supply fault module can accurately judge the fault position for maintenance personnel, and avoid the running accidents of the railway passenger car caused by the fact that all the passenger room lamps are turned off.

Drawings

FIG. 1 is a schematic diagram of the control structure of the present invention;

fig. 2 is a first schematic structural diagram of the adjustable color temperature controller of the present invention;

fig. 3 is a schematic structural diagram of the adjustable color temperature controller of the present invention;

fig. 4 is a schematic diagram of a temperature control circuit of the adjustable color temperature controller of the present invention;

fig. 5 is a schematic diagram of a fault feedback circuit of the LED centralized control power supply of the present invention;

fig. 6 is a schematic diagram of an LED lighting module.

In the figure, X1-input port; an X2-photosensitive interface; x3-output port; an X4-communication port; an X5-LCD liquid crystal screen; x6-operating a key; an R-red light diode; a G-green diode; b-blue light diode.

Detailed Description

As shown in fig. 1-6, a system for color temperature adjustable lighting for rail transit comprises a vehicle power supply, a train man-machine interaction system, a train broadcast signal system and a train control and management system, and is characterized in that: the LED color-adjustable LED illumination system also comprises a color-adjustable controller, an LED centralized control power supply and an LED light-emitting module; the train control and management system sends the acquired signals to the train man-machine interaction system so that a worker can acquire related information; the utility model discloses in, the adjustable color temperature controller is provided electric power support by the vehicle power supply, the input port X1 and the train broadcast signal system of adjustable color temperature controller and operation button X6 are connected, input port X1 adopts the RS485 interface, connect on input port X1's RS485 interface after the pencil of train broadcast signal system and operation button X6's pencil integration, the setting of guest room interior lighting mode is realized through the switching signal of two ports X1-5 and X1-6 of adjustable color temperature controller input port X1, when the X1-5 terminal of input port X1 is high level (DC 110V), and when the terminal of X1-6 of input port X1 is low level (0V), the output scheme of adjustable color temperature controller is single white light's LED light emitting module formula; when the input terminals X1-5 and X1-6 of the input port X1 are simultaneously at a high level (DC 110V), the output scheme of the adjustable color temperature controller is an LED light-emitting mode for changing color according to a preset atmosphere; it should be noted that, the priority of the X1-4 terminal is higher than that of the X1-5 terminal and the X1-6 terminal, that is, when the input port X1-4 of the input port X1 of the dimmable controller receives a high level of a broadcast signal (DC 110V), no matter what state the input port X1-5 terminal and the input port X1-6 terminal are in, at this time, the LED light emitting module is a single white light, which indicates that a vehicle is about to enter a station, the LCD panel X5 displays a light emitting mode of the dimmable color temperature controller, and the input port X1-5 terminal and the input port X1-6 terminal can be set to be in a high level or a low level state by operating a key.

All illumination schemes are realized by receiving PWM signals output by an output port X3 of the color temperature adjustable controller through the LED centralized control power supply and outputting the signals to the LED light-emitting module through the internal optical coupler control of the power supply, and similarly, the output port X3 of the color temperature adjustable controller is also communicated with the LED centralized control power supply through an RS485 communication interface.

Every guest room all is provided with two LED centralized control power and supplies power for LED light emitting module, adopts mutual redundant mode of connection between two LED centralized control power, and in case one of them LED centralized control power breaks down, another LED centralized control power can supply power immediately, avoids taking place the problem production that the guest room loses the illumination. The utility model discloses in, the power supply structure of the LED centralized control power that adopts is identical with prior art, and the difference lies in the utility model discloses a LED centralized control power has set up trouble feedback circuit, and trouble feedback circuit's schematic diagram please see figure 4, and whether there is output to realize between the inside 48V normally closed contact relay 1RLY detection LED + of power and the LED-. When the power supply fails, the output is 0, the internal relay is attracted due to the power-off contact, so that the relay contact 2RLY in the power supply failure feedback unit is attracted and conducted, a high-level DC110V signal is output through the failure ports G1 and G2 and is transmitted to a train man-machine interaction system through a train control and management system to be displayed, the conditional train can also record and store the failure in the train control and management system to remind maintenance personnel of timely replacing a failure LED power supply module, it needs to be explained that a failure feedback circuit of the LED centralized control power supply is not necessary to be set, whether the failure feedback circuit is set or not can be selected according to actual conditions, if the failure is not required, the LED centralized control power supply in the prior art can meet the requirements.

The LED light-emitting module is composed of a plurality of RGB lamp beads connected in parallel, each RGB lamp bead comprises a red light diode R, a green light diode G and a blue light diode B, the color temperature is changed by mainly controlling three diode cathodes of the RGB lamp beads through PWM output of the color temperature adjustable controller to realize color gradual change, the principle of PWM control on the LED is that the voltage at two ends of the LED is adjusted by utilizing duty ratio, so that the current flowing through the LED is adjusted, the LED is brighter when the flowing current is larger, and the LED is darker when the flowing current is smaller. The PWM utilizes this principle to realize the control of color gradient, and more colors can be combined after the color gradient.

The output scheme synchronization of the adjustable color temperature controllers is realized through an RS485 communication port X4 reserved on equipment, the plurality of adjustable color temperature controllers are in communication connection through the RS485 communication port X4, and when the output scheme of one adjustable color temperature controller changes, the output scheme can be synchronized to other adjustable color temperature controllers through the RS485 communication port X4, so that the consistency of the output scheme of the whole vehicle is achieved. Just because the rail train environment is complex, and interference is more, so adopt the differential mode can effectively improve communication reliability, the biggest advantage of differential input can suppress common mode interference, and RS485 communication is a typical differential communication, and RS485 adopts two communication lines, usually denoted by A and B. A logical "1" is represented by a voltage difference between two lines of + (0.2 to 6) V, and a logical "0" is represented by a voltage difference between two lines of- (0.2 to 6) V.

The light intensity sensor is connected with the light sensitive interface X4 and used for sensing the light intensity in the passenger room, and the color temperature adjustable controller correspondingly outputs a preset color scheme in the color temperature adjustable controller according to the light intensity signal and controls the LED lamp beads to display the color scheme for the LED centralized control power supply.

The utility model discloses satisfy the various operational environment of rail train, through the operational mode of PWM pulse signal intermittent type work, utilize the duty cycle to adjust the voltage at LED both ends to adjust the electric current that flows through LED, the electric current that flows through is then LED more bright more greatly, and the electric current that flows through is then LED dark more less. By utilizing the principle, the control of the color gradual change of the three-color diode in the LED can be realized, so that more colors can be combined to realize the illumination in the vehicle, the diversity is brought to the illumination of the carriage, and the comfort level of passengers is improved; meanwhile, the color temperature adjustable controller realizes the synchronism of the whole vehicle equipment through the characteristic of RS485 communication; the color temperature controllers are connected through the communication interface, and the output scheme can be synchronized to other adjustable color temperature controllers through the communication interface only by setting the output scheme of one of the color temperature controllers, so that the occupancy rate of personnel in a train set is reduced; and the increase of the feedback function of the LED centralized control power supply fault module can accurately judge the fault position for maintenance personnel, and avoid the running accidents of the railway passenger car caused by the fact that all the passenger room lamps are turned off.

The above, it is only the preferred embodiment of the present invention, not the limitation of the present invention, and any person skilled in the art can replace and modify the equivalent made without departing from the present invention, which is considered as falling into the protection scope of the present invention.

Claims

1. The utility model provides a be used for adjustable colour temperature lighting system of track traffic, includes vehicle power supply, train man-machine interaction system, train broadcast signal system and train control and management system, its characterized in that: the system also comprises a color-adjustable controller, an LED centralized control power supply and an LED light-emitting module, wherein the color-adjustable controller is electrically connected with the vehicle power supply, is in communication connection with the train broadcast signal system and is in communication connection with the LED centralized control power supply; the LED centralized control power supply is electrically connected with the power supply of the vehicle and also electrically connected with an LED light-emitting module of a train passenger room; the LED light-emitting module of one train passenger room is powered by two LED centralized control power supplies, and a mutual redundant wiring mode is adopted between the two LED centralized control power supplies.

2. The adjustable color temperature lighting system for rail transit of claim 1, wherein: but mixing of colors controller includes the shell, the control circuit board who sets up in the shell, with control circuit board communication connection's input port (X1), output port (X3), communication port (X4), sensitization interface (X2), LCD liquid crystal display (X5) and operation button (X6), wherein train broadcast signal system inserts input port (X1) with operation button after gathering a bundle, LED centralized control power is connected with output port (X3), sensitization interface (X2) are connected with light intensity sensor, communication port (X4) are used for the communication between the adjustable look controller of difference.

3. The adjustable color temperature lighting system for rail transit of claim 2, wherein: and the input port (X1), the output port (X3), the communication port (X4) and the photosensitive interface (X2) adopt RS485 communication interfaces.

4. The adjustable color temperature lighting system for rail transit of claim 1, wherein: the LED centralized control power supply is provided with a fault feedback circuit, and the fault feedback circuit is in communication connection with the train control and management system.

5. The adjustable color temperature lighting system for rail transit as claimed in claim 1, wherein: the LED light-emitting module consists of a plurality of RGB lamp beads connected in parallel, and each RGB lamp bead comprises a red light diode (R), a green light diode (G) and a blue light diode (B).