RU2583330C2 - Traffic light module - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to railway ACS, namely to locomotive lights. Locomotive traffic light has current source, housing, clear protective glass, groups of light-emitting diodes, as well as filter and key for each group of light-emitting diodes. Light flux of LEDs of each group has its own color identical to signal track traffic light colour. To generate control signal to key is used delaying chain. Each group of LEDs is independent from each other. Radiator is made in form of set of plates, separating light flux from different groups of LEDs. Group of light-emitting diodes are separated from radiator with heat-conducting dielectric.

EFFECT: technical result consists in improvement of level of safety of railways rolling stock.

1 cl, 1 dwg

Description

The invention relates to the field of railway automation and can be used as part of an automated locomotive control system, namely as a locomotive traffic light.

A known invention related to the technique of light signaling and intended for use in traffic lights for traffic control. The traffic light section contains a housing with a sun visor. An optical device with a light source, a reflector and a color light filter-diffuser is mounted in the casing (Pat. RF №2328774. Traffic light section. Publ. 14.08.2006).

The disadvantage of this device is the lack of protection of the lighting part from network interference, the lack of heat removal from the light source.

A known group of inventions relating to the technique of controlling rolling stock or the train as a whole by actuating warning signals using coded pulses. In the proposed method, each signal that provides the burning of a traffic light lamp is encoded by a periodic sequence of binary signals with an autocorrelation function (ACF), which allows to increase the noise immunity of the transmitted signal, and then is subjected to phase manipulation, amplified by power and transmitted to the rail circuit. The signal extracted from the rail circuit by locomotive coils is fed through a band-pass filter to the input of the automatic locomotive signaling receiver, where it is detected, amplified and fed to the input of a matched filter. From the output signal of the latter, a periodic sequence of only short pulses is isolated, they are converted into a constant voltage, which ensures the burning of a locomotive light signal lamp corresponding to a traffic light lamp (Pat. RF No. 2392150. A way to display the indications of a traffic light at a locomotive traffic light and device for its implementation. Publ March 30, 2009).

The disadvantage of this device is the lack of protection of the lighting part from network interference.

Closest to the proposed device is a group of inventions related to the field of railway automation, which can be used as part of an automated locomotive control system. The method of transmitting data to signal selection blocks of a data processing device that ensures the safety of rolling stock is carried out by inverting the state of a parallel bus, the bit capacity of which corresponds to the number of transmitted messages. The method of issuing a signal to a locomotive traffic light is carried out by issuing from the information source the current information signal to the corresponding indicator of informative fire. The signal to the locomotive traffic light is produced from two equally functional independent signal issuing units, while the information signal to the corresponding indicator of informative fire from one unit is sequentially alternated with the output to the remaining indicators of the diagnostic signal (Pat. RF №2328399. The device for processing data on the freedom ahead of lying block sections of the railway in a locomotive control system that ensures the safety of rolling stock, the method of transmitting data to blocks signal, and a method for issuing locomotive traffic signal. Publ. 13.10.2006).

The disadvantage of this device is the complexity of the electrical circuit and its possible danger in the event of a spurious backlight due to diagnostic signals.

The aim of the invention is to increase the safety level of traction rolling stock of railway transport.

This goal is achieved in that the locomotive traffic light is based on LED modules, with a filter device separate for each module.

The essence of the invention lies in the fact that the luminous flux of the LEDs of each group has its own color identical to the color of the signal of the traffic light, a delay chain is used to form the control signal on the key, the glass has an internal or external structure that reduces its transparency, each group of LEDs is independent of the other, the radiator is made in the form of a set of plates separating the light flux from different groups of LEDs, the groups of LEDs are separated from the radiator by a heat-conducting dielectric.

The drawing shows a diagram of a locomotive traffic light.

1.1 ... 1.N - LED group (N≥1),

2 - input connector

3 - control unit,

4.1 ... 4.N - input filter,

5.1 ... 5.N is the key,

6.1 ... 6.N - delay circuit

7.1 ... 7.N - current stabilizer,

8 - plate radiator,

9 - light flux

10 - case,

11 - dielectric

12 - a protective glass.

The transceiver (hereinafter the device) operates as follows.

The locomotive traffic light (hereinafter the device) operates as follows.

The locomotive traffic light receives a signal from the control unit 3 in the form of a constant-level voltage to the input connector 2, and for each contact of the input connector 2, a signal arrives for a group of LEDs 1.1 ... 1.N of a certain light signal, each group of LEDs works independently of another group. Getting into a locomotive traffic light, the signal passes through a 4.1 ... 4.N filter, which does not pass high and medium frequencies. After that, the signal passes through the key 5.1 ... 5.N, and the voltage at the control terminal of the key is formed for a relatively large period of time due to the action of the delay circuit 6.1 ... 6.N. After the signal is fed to the current stabilizer 7.1 ... 7.N. Thus, the current flows through the LEDs practically without ripple, and the device itself is well protected from external interference of a wide range.

The heat from the LEDs 1.1 ... 1.N is transferred to the device body 10 through the radiator 8, made in the form of a set of plates, while the LEDs are isolated from the radiator by a dielectric heat-conducting material 11. Thus, a heat sink is created for the LEDs 1.1 ... 1.N, without violating electrical safety devices.

The luminous flux 9 of each group of LEDs 1.1 ... 1.N has a certain color, which is determined by the color of the glow of the traffic light. The protective glass 12 is colorless, but has an internal or external structure that reduces the transparency of the glass 12, this reduces the overall brightness of the signal of the LED 1.1 ... 1.N. The shape of the radiator 8 allows you to separate the light flux 9 from the LEDs 1.1 ... 1.N, which is necessary for the formation of a red-yellow signal. Thus, the device generates a clearly perceived luminous flux, eliminating the possibility of spurious external illumination of signals.

Thus, the locomotive traffic light has increased reliability, safety due to improved filtering capabilities of the received electrical signal, good heat dissipation from the LEDs and a clear separation of the light signal on the protective glass.

Conclusion: based on the foregoing, this technical solution increases the level of traffic safety of traction rolling stock of railway transport.

Claims (1)

A locomotive traffic light containing a current source, a housing, a colorless protective glass, groups of LEDs, as well as a filter and a key for each group of LEDs, characterized in that the luminous flux of the LEDs of each group has its own color, identical to the color of the signal of the traffic light, to generate a control signal for in the key, a delay chain is used, the glass has an internal or external structure that reduces its transparency, each group of LEDs is independent of the other, the radiator is made in the form of a set of plates, p separating the luminous flux from different groups of LEDs, the groups of LEDs are separated from the radiator by a heat-conducting dielectric.

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