KR101816348B1 - Electrical Circuit for LED Lamp in Salon of Rail Cars and Light Controlling System with there - Google Patents

Abstract

The present invention can minimize the weight and cost of the vehicle and the production process cost by minimizing the wiring, and it is possible to work without separating the lighting apparatus from the vehicle body even when the LED lighting is replaced, The present invention relates to an LED lighting circuit for a railway vehicle cabin and a lighting control system for a railway vehicle equipped with the same, and more particularly, to an LED lighting wiring for supplying and controlling power to LED lighting means provided in each room of a railway vehicle The LED lighting includes a plurality of LED chip and a controller, a power supply pattern for supplying power to the LED, and a control signal pattern for transmitting a control signal for controlling the illuminance of the LED. And the module and the module are connected by a jumper line connected to each pattern of the LED modules.

Description

TECHNICAL FIELD [0001] The present invention relates to a lighting control system for a railway vehicle having an electric circuit for minimizing wiring when installing an LED lighting lamp in a railway vehicle cabin.

The present invention relates to a lighting control system for a railway vehicle cabin having an electric circuit for minimizing wiring of an LED lighting lamp for a railway vehicle, and more particularly, to a lighting control system for a railway vehicle cabin which can minimize the use of internal wiring To an illumination control system for a railway vehicle having an electric circuit for minimizing wiring when installing an LED lighting fixture.

In particular, it minimizes the wiring and can reduce the weight and cost of the vehicle and the production process cost dramatically. Also, when replacing the LED lighting, it is possible to work without separating the lighting fixtures from the body, And more particularly to a lighting control system for a railway vehicle having an electric circuit for minimizing wiring when installing an LED lighting lamp in a railway car room.

Most newly built railway vehicles use LEDs for energy saving and maintenance convenience as well as cabinets and other kinds of interior lamps, as well as headlights, tail lights, (Similar to ordinary fluorescent lamps). This is applied to most passenger railway vehicles not only in Korea but also overseas. Railway cars are divided into three wiring lines in case of a room for safety. The three wires are divided to control according to the steady state, emergency state, and load halving state. Especially, in case of emergency, only the emergency light on the door is designed to be lit using battery power. Because of this structure, the design including the electric power supply line is surely required in the design of the electric circuit wiring of the LED lamp of the railway car, and it is predicted that the problem caused by the poor wiring due to the complicated wiring design and short- Problems such as the wiring being applied longer than the used amount occur.

Various technologies related to the illumination wiring and control device of such a railway car include the following Patent Documents 1 and 2 and the like.

[0004] Patent Document 1 discloses a vehicle lighting system comprising a battery power source installed in a railway vehicle, a switch unit provided between the battery power source and a lamp installed in a cabin of the railway vehicle to control power supply from the battery power source to the lamp, And a time delay relay for controlling the switch section to be turned off after a lapse of a predetermined time when the door is closed,

Patent Document 2 discloses a lighting control device for a railway vehicle for controlling illumination of a first group of LED lamps operated by a DC voltage source in a railway vehicle and a second group of LED lamps operated by an AC voltage source, And a lighting control module configured to receive and process the voltages from the voltage source, respectively, and then output predetermined voltages to the first and second groups of LED lamps, respectively, and the LED lamp receives a predetermined voltage output from the lighting control module Wherein the illumination control module is configured to convert a DC voltage input from a DC voltage source to supply a predetermined DC voltage to the first group of LED lamps, And supplies a predetermined DC voltage to the second group of LED lamps.

Among these conventional technologies, the technology of Patent Document 2 is a technique developed by the applicant of the present invention, in which the illuminance of the lamps installed on a passenger car of a railway vehicle can be controlled by group, It is possible to utilize the existing lighting control facility as it is, and it is also possible to save power that is unnecessarily wasted, by providing a single device type lighting control module capable of additional functions such as fault diagnosis and power consumption.

That is, as shown in Fig. 11, the AC vehicle and the DC vehicle are designed in the same three wiring lines, and when the vehicle is normally operated, all three lines are operated to operate the passenger compartment and the like, It is designed so that only eight lights are supplied to the room around the door, which is designed to serve as an emergency light when power is supplied to Line 1 only.

In addition, in order to temporarily reduce power consumption due to some problems of the vehicle, Line 2's load halving circuit is operated so that only 8 lights can be turned off.

This design method must be applied due to the safety characteristics of the electric vehicle. Generally, the LED lamp of the electric vehicle is designed so that the voltage supplied through the circuit breakers can be changed to a voltage that can operate the LED device, The electric lamp is equipped with an AC / DC or DC / DC converter. The converter is designed to be a constant current type in order to prevent flicker due to voltage fluctuation, which is a characteristic of a train.

The wiring of the electric car is continuously jumpered so that the power line starting from the circuit breaker can be supplied to each LED light source. Since the total length of the electric vehicle is about 40M, Line 2 and Line 3 are about 50M each, 2 is divided into left and right sides, so the total length is about 100M, which means that it uses about 200M wires per lot. In addition, in order to control each LED lamp, control wiring must be provided in addition to electric wiring. In order to control the illuminance of each lamp through the communication wiring thus configured, the communication method currently used is RS-485 communication, It is vulnerable to strong noise and surge of railway vehicles. To compensate, expensive parts should be used.

As described above, when a large amount of electric wires are used, there are various problems such as an increase in manufacturing cost of the electric railway, an increase in the process cost, and an increase in the weight of the electric railway vehicle, resulting in a decrease in energy efficiency.

In addition, there is a problem such that miswiring may occur in the process of electric wiring due to complicated wiring, and that the device must be removed even when the LED lamp is maintained during operation.

KR Patent Registration No. 1064270 KR Patent No. 1305273

The present invention has been developed in order to overcome the problems of the prior art as described above, and it is an object of the present invention to minimize the number of electric wires for wiring without changing the design structure according to the design regulations applied for safety, And to provide an illumination control system for a railway vehicle having an electric circuit for minimizing wiring in the installation of an LED lighting fixture in a railway vehicle cabin, which enables lighting control to be less influenced by surrounding noises The purpose.

In order to achieve the above object, the present invention provides a lighting control system for a railway vehicle having an electric circuit for minimizing wiring in the installation of an LED lighting lamp in a railway vehicle cabin, wherein a plurality of LEDs and a controller are installed in the LED lighting lamp, And an LED module including a PCB having a plurality of LED chips having a control signal pattern for transmitting a control signal for controlling the illuminance of the LED,
The LED module is provided with an emergency power supply pattern for supplying power to only the LED of the emergency LED module, and the commercial LED module which is normally lit up and the emergency LED module which is lit only in the emergency state are alternately arranged. A commercial power supply pattern for supplying power to only the LED of the commercial LED module is formed in the emergency LED module,
The LED module is provided with an electric circuit for minimizing the wiring when the LED lamp is installed in the railway car cabin, which is wired by a jumper connected to the power supply line and the signal transmission line in each pattern of the LED modules ,
Each of the rooms of the railway vehicle is provided with room illuminance control means for controlling the power supplied to the LED module for controlling the illuminance of the LED module, and also controls the room illuminance control means or TCMS And a main control means capable of being controlled by the train comprehensive control device,
The main control means may be provided with an illuminance sensor to control the illuminance of the LED module by transmitting illuminance values to the room illuminance control means according to illuminance and using the DTMF signal as means for directly controlling the illuminance of the LED module And controls illumination control and on / off control by using 16 different frequencies.

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As described above, according to the present invention, the power supply pattern and the signal control pattern are integrated with the LED module, and the modules are connected to each other by the jumper wiring, thereby minimizing the amount of electric wires and communication lines used for wiring the LED lamps. Weight and cost, production process cost, etc. can be remarkably reduced, and even when the LED lighting is replaced, it is possible to work without separating the lighting device from the vehicle body, thereby reducing the maintenance cost. In addition, there is an effect that the error occurrence probability is reduced by executing illumination control which is less influenced by the surrounding noise.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a layout diagram of an electric circuit wiring of a railway vehicle having a wiring structure according to the present invention,
Fig. 2 is an enlarged view of a portion A in Fig. 1,
3 is a plan view of an example of an LED module constituting a room lighting device of a railway vehicle having a wiring structure according to the present invention,
4 is an internal PCB layout of an LED module and an electric and electronic circuit block diagram,
5 is a block diagram of a lighting control system of a railway vehicle according to the present invention;
6 is a block diagram of a room control means,
7 is a block diagram of a room control means and an LED module for dimming control,
8 shows a signal input pattern of the DTMF for dimming control,
9 is a block diagram of an example of an input / output signal condition of the main input /
10 is a block diagram of an example of the input / output signal condition of the guest room input /
11 is a wiring diagram of a room lighting of a conventional railway vehicle.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

The wiring according to the method for designing an LED lighting lamp electric circuit of a railway vehicle according to the present invention can minimize the wiring in the cabin, thereby saving the material and manpower required for the construction and reducing the cost.

As shown in FIGS. 1 and 2, the wiring according to the method for designing an LED lighting lamp electric circuit of a railway vehicle according to the present invention includes LEDs for supplying power to and controlling the LED lighting means provided in each room of a railway vehicle, In the illumination light wiring, the LED illumination light includes a plurality of LEDs and a controller, a power supply pattern 10p for supplying power to the LED, a control signal pattern 10c for transmitting a control signal for controlling the illumination of the LED, And a jumper line 30j connected to each pattern of the LED modules is connected between the LED module and the jumper 30, .

As shown in FIG. 3, the LED modules 10 and 20 are modularized by connecting a PCB on which a plurality of LEDs are mounted, in series. As shown in FIGS. 1, 2 and 4, .

As shown in FIGS. 1 and 2, some LED modules 10 among the LED modules 10 and 20 are commercial LED modules 10 that are normally lit in a normal state, and others are emergency LED modules 10 and 20, LED module 20 as shown in FIG.

The emergency LED module 20 is preferably arranged in accordance with the railway vehicle manufacturing rules, which can be used to ensure the minimum safety of passengers in an emergency situation. Accordingly, it is preferable to arrange one emergency LED module 20 between two to four commercial LED modules 10 as shown in Fig.

The LED modules 10 and 20 are provided with a controller. The power supply patterns 10p and 20p are formed to supply power to the LEDs. A control signal pattern 10c, 20c are formed.

An emergency power supply pattern 10e is formed in the commercial LED module 10 of the LED modules 10 and 20 and a commercial power supply pattern 20e is formed in the emergency LED module 20. [ The emergency power supply pattern 10e formed in the commercial LED module 10 can supply power only to the LED of the emergency LED module 20 without supplying power to the LED provided in the commercial LED module 10, The commercial power supply pattern 20e formed in the module 20 can supply power only to the LEDs of the commercial LED module 10 without supplying power to the LEDs provided in the emergency LED module 20. [

The wiring between the LED modules 10 and 20 is constituted by a jumper 30 adapted to the vehicle structure, and the jumper 30 serves as a connecting means for electrically connecting the LED modules. As shown in FIG. 2, the jumper 30 electrically connects each of the patterns formed on the LED modules 10 and 20. The connector 30c is connected to a connector provided in each LED module. (See FIG. 4). That is, the jumper 30 is provided with a connector 30c at an end of a jumper line 30j made up of a power supply wire and a signal transmission wire so as to be easily connected to the LED modules 10 and 20 Alternatively, a power supply line and a signal transmission line may be formed in a pattern on the substrate.

Since the distance between the LED modules is less than about 100 mm (considering the structure of a typical railway vehicle), the jumper line 30j can be formed only by a wire of 120 mm or less, Since 11 jumpers (30) are used for each of the left and right two wiring lines, the total length of the electric wires used is 2,640 mm (1,320 mm * 2). Accordingly, only 1.3% of the total length of the wires used in the conventional wiring structure is 20,000 mm, so that the amount of wires can be greatly reduced.

Commercial power is supplied to both the commercial power supply pattern (main power supply line) and the emergency power supply pattern (emergency power supply line) provided in the LED lighting wiring of the railway vehicle of the present invention constructed as described above, The power supply is controlled so that only the LED module is powered.

The LED lighting control system of a railway vehicle according to another aspect of the present invention is an LED lighting control system of a railway vehicle having the LED lighting wiring configured as described above. As shown in FIG. 5, A room illuminance control means 40 for controlling the illuminance of the room by controlling the power supplied to the LED modules installed in the respective rooms and a main control means 50 provided in the cab for controlling each room illuminance control means .

The main control means 50 is provided in the cab of the railway vehicle as described above and is capable of communicating with the train general control device TCMS as shown in FIG. 4 and can be controlled by the train overall control device .

In this way, the main control means is operated in cooperation with the train total control device (TCMS), thereby improving the operational convenience.

In addition, an illuminance sensor is provided in the main control means of the cabin so that the illuminance of the room can be automatically controlled according to the brightness of the outside, and the room illuminance control means controls the illuminance of the LED module according to the illuminance value transmitted from the main control means .

Of course, in an emergency, the main control means 50 may collectively control each room illumination control means to select either the commercial LED module or the emergency LED module for lighting.

The main control means (50) can not only transmit and receive a control signal to and from the room lighting control means (40) by the communication means, but also monitor the lighting condition of the room.

6 and 7, the room lighting control means 40 includes DC / DC converters for supplying power suitable for lighting the LEDs. The room lighting control means 40 is connected to the main control means 50 through the room input / Receives control signals, and transmits control signals to the controllers of the LED modules (10, 20).

The control signals transmitted from the room illuminance control means 40 to the LED modules 10 and 20 include on / off signals of the LED modules 10 and 20 and a dimming control signal.

8 shows an example of a signal generating method for dimming control, in which the driving power source is directly supplied from the emergency power source of the vehicle among the power source circuits built in the room lighting control means 40, As shown in FIG. 8, dimming of each LED module is controlled by generating 16 different signals in a dual tone multiple frequency (DTMF) system.

The DTMF method is generally a signal control method used in a telephone, and a detailed description thereof will be omitted. The reason for controlling the dimming by the DTMF method is to control the interior of the room by stepping (10% of the maximum brightness, 20% of the maximum brightness, ..., 100%) without linearly controlling the dimming control , Which reduces the probability of error occurrence because it is less influenced by surrounding noise.

10 shows a signal input / output state of one example of the guest room input / output device 40. Fig.

Communication between the main control means 50 and the room illuminance control means 40 may be performed by various communication regulations. However, the illumination control of the LEDs and the like may directly control the illuminance of the LED modules in the room control means, For this, the room illuminance control unit 40 can control illumination and on / off using 16 different frequencies by using the DTMF signal.

Among the railway vehicles generally operated in Korea having the LED lighting control system of the railway vehicle constructed as described above, 24 LED modules are provided for each room, and the commercial LED modules are always on, It is preferable that emergency LED modules which are lit only in the emergency state are alternately arranged and that one emergency LED module is installed between two to four commercial LED modules. Although high-speed trains and other trains differ in terms of quantity, size, and shape of LEDs, the arrangement of commercial LED modules and emergency LED modules is the same.

10: Commercial LED module
10p: Power supply pattern
10c: control signal pattern
10e: Emergency power supply pattern
20: Emergency LED Module
20p: Power supply pattern
20c: control signal pattern
20e: Commercial power supply pattern
30: Jumper
30j: Jumper line
30c: Connector
40: Room illumination control means
50: main control means

Claims (7)

delete delete There are many LEDs and controllers in the LED lamps, a PCB with a large number of LED chips with a power supply pattern for supplying power to the LEDs and a control signal pattern for transmitting control signals for controlling the brightness of the LEDs LED module,
The LED module includes a plurality of LED modules for each room, and is composed of a commercial LED module that is normally lit and an emergency LED module that is lit only in an emergency state, and is alternately arranged. An emergency power supply pattern 10e for supplying power to only the LED of the emergency LED module 20 is formed in the commercial LED module 10 and the emergency LED module 20 A commercial power supply pattern 20e for supplying power only to the LED of the commercial LED module 10 is formed,
The LED module is provided with an electric circuit for minimizing the wiring when the LED lamp is installed in the railway car cabin, which is wired by a jumper connected to the power supply line and the signal transmission line in each pattern of the LED modules ,
Each of the rooms of the railway vehicle is provided with room illuminance control means for controlling the power supplied to the LED module for controlling the illuminance of the LED module and also controls the room illuminance control means or TCMS And a main control means capable of being controlled by the train comprehensive control device,
Wherein the main control means includes an illuminance sensor for controlling illuminance of the LED module by transmitting illuminance values to the room illuminance control means according to illuminance and the room illuminance control means for controlling the illuminance of the LED module directly The LED module is controlled to be illuminated and on / off controlled using 16 different frequencies by using a DTMF signal. The railroad having an electric circuit minimizing the wiring in installation of the LED lighting lamp in a railway car room Lighting control system of a vehicle. delete delete delete delete

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