JP4421366B2 - Railway model traffic light - Google Patents

Description

  The present invention relates to a railway model traffic signal.

Conventionally, standard railway models such as so-called N gauge and HO gauge have been commercially available, and Patent Document 1 discloses a rail-integrated traffic signal suitable for these applications. This traffic light detects passage of each wheel of the train by a sensor attached to a predetermined position of the rail, and sequentially switches the lighting pattern of the signal lamps accordingly. For example, in the case of a three-lamp type traffic signal, the timing is switched from green to red at the timing when the head of the train passes, that is, at the detection timing of the first wheel. Then, every time a predetermined time elapses, a series of lighting patterns are sequentially switched in the order of red to yellow and yellow to green.
Japanese Utility Model Publication No. 3-19920

  By the way, there are various types of railway traffic lights, including 2 to 6 lamps, and in the world of railroad models, each has a full line while satisfying both price and reality. There is a high customer need for a product to be upgraded. In railway model traffic lights, signal lights are controlled by a small and inexpensive control device (microcomputer). If the operation design is performed for each type of traffic lights, design costs including the development of computer programs Incurs an increase. As a result, it is difficult to commercialize various types of traffic signals for railway models at low prices.

  The present invention has been made in view of such circumstances, and an object thereof is to commercialize various types of traffic signals for model railways at a low price.

  In order to solve such a problem, the first invention includes at least one signal lamp, and a traffic signal body selected from a plurality of types, and a control signal is supplied to the traffic signal body. There is provided a traffic signal for a railway model having a control device for sequentially switching a series of lighting patterns of signal lamps included in a main body. Here, the control signal is a common control signal that does not depend on the type of the traffic signal body. Further, a series of lighting patterns of the signal lamps are individually set for each type of the traffic signal body by changing the circuit connection relationship in the traffic signal body for each type of the traffic signal body.

  In the first invention, the control signal preferably defines a plurality of phases, each of which is a minimum unit of the lighting pattern.

  The second aspect of the invention includes at least one signal lamp, a signal body selected from a plurality of types, and supplying a control signal to the signal body, so that m (m ≧ m) of the signal lamp included in the signal body 2) A railway model traffic signal having a control device for sequentially switching the lighting patterns is provided. Here, the control signal defines n (n ≧ m) phases that do not depend on the type of the traffic signal body. The m lighting patterns are defined by a combination of n phases specified by the circuit connection relationship in the traffic signal body. And the connection relation of a circuit differs for every kind of traffic signal main part.

  In the second invention, it is preferable that the number m of lighting patterns is the same as the number n of phases for the first traffic signal body having the largest number of lighting patterns among a plurality of types of traffic signal bodies. In this case, it is preferable that the number m of the lighting patterns is smaller than the number n of the phases with respect to the traffic signal body excluding the first traffic signal body.

  In the first or second invention, the connection relation of the circuits may be set by using a different printed wiring board for each traffic signal body. The signal lamp may be a light emitting diode. In this case, it is preferable that the control device controls the traffic signal body according to the current polarity of the control signal. In this case, the control device may turn on the plurality of signal lamps simultaneously by alternately switching the current polarity of the control signal in any of the lighting patterns.

  In the present invention, it is possible to arbitrarily cope with various types of traffic signal bodies using a common control device that does not depend on the type of the traffic signal body. A series of lighting patterns of the signal lamps differ depending on the type of the traffic signal body, but the correspondence to each type is performed by changing the circuit connection relationship for each traffic signal body. Thereby, it is possible to realize different lighting patterns for each type using a common control signal for a plurality of types of traffic signal bodies. As a result, a module other than the traffic signal main body, for example, a module in which a control device is mounted can be shared, so that the model train traffic signal can be commercialized at a low price.

  FIG. 1 is a diagram showing an example of a layout in which railway model traffic signals according to the present embodiment are arranged. The layout 1 is endless in which a plurality of linear and curved rail portions 2 are combined in an annular shape. Each rail portion 2 includes a road bed 2c made of an insulator such as plastic, and a pair of rails 2a and 2b attached on the road bed 2c and made of a conductor such as stainless steel. Electric power (DC voltage or pulse voltage) from the power unit 3 (controller) is supplied to these rails 2a and 2b via a cord 4 with connector terminals. The train 5 placed on the rail portion 2 includes a power vehicle equipped with a motor, and receives power supply from wheels in contact with the rails 2a and 2b. The user rotates the train on the layout 1 at a desired speed by adjusting the knob of the power unit 3 and setting the DC voltage or pulse voltage to be variable. Further, a rail-integrated model train traffic signal 6 is attached to a part of the layout 1. Electric power necessary to operate the traffic light 6 is supplied from the power unit 3 via a power cord (not shown).

  FIG. 2 is a perspective view of the railway model traffic signal 6. The railway model traffic light 6 is mainly composed of a traffic signal body 61, a sensor 62, a control device 63 as a module incorporating a microcomputer, a connector 64 (see FIG. 3), and a short linear rail portion 2. . The traffic signal main body 61 has a shape imitating an actual railway traffic signal, and at least one signal light composed of a light emitting diode or the like is arranged in a line. In the drawing, a five-lamp type traffic signal is shown as an example, and the traffic signal body 61 is attached to a connector 64 provided on the control device 63 via a detachable mounting portion 61a. Further, the traffic signal main body 61 is further provided with a printed wiring board 61b that electrically connects the mounting portion 61a and the signal lamp. The sensor 62 detects the timing at which the train 5 traveling on the rails 2a and 2b passes a predetermined position, and outputs a detection signal indicating the passage of the train 5 to the control device 63. Based on this detection signal, the control device 63 generates a common control signal that does not depend on the type of the traffic light main body 61 by executing a computer program set in advance, and outputs this control signal to the connector 64.

  FIG. 3 is a perspective view of the railway model traffic signal 6 with the traffic signal body 61 removed. The connector 64 exposed by removing the traffic signal body 61 outputs the four control signals generated by the control device 63 executing the computer program to the four output terminals PO1 to PO4. On the other hand, four input terminals PI1 to PI4 are provided on the mounting portion 61a of the traffic signal body 61, and correspond to the output terminals PO1 to PO4 of the connector 64, respectively. In a state where the connector 64 and the mounting portion 61a are engaged, the output terminals PO1 to PO4 on the connector 64 side are electrically connected to the corresponding input terminals PI1 to PI4 on the mounting portion 61a side.

  FIG. 4 is a perspective view showing a variation of the traffic signal body 61. The traffic signal main body 61 includes an attachment portion 61a having input terminals PI1 to PI4 having the same shape, and a plurality of types having a series of lighting patterns different from each other are prepared. FIGS. 2A to 2E show a 2 to 6-lamp type traffic signal body 61 as an example. In the signal body 61 of the two-lamp type traffic signal shown in FIG. 2A, two signal lights (light emitting diodes) are arranged in the order of “green 1 (G1) / red (R)” from the top to the bottom. . This two-lamp type traffic light has a short-time two-lamp type and a long-time two-lamp type, each having a different lighting pattern. The three-lamp type traffic light main body 61 shown in FIG. 6B has three signal lights arranged in the order of “green 1 (G1), yellow 1 (Y1), red (R)” from the top to the bottom. . Further, the four-lamp type traffic light main body 61 shown in FIG. 4C is classified into a warning display 4-lamp type and a deceleration display 4-lamp type. The warning signal 4-lamp type traffic light body 61 has four signal lights arranged in the order of "yellow 3 (Y3), red (R), green 1 (G1), yellow 1 (Y1)" from the top to the bottom. Have On the other hand, there are four deceleration-display four-light type traffic lights 61 arranged in the order of "yellow 2 (Y2), red (R), yellow 1 (Y1), green 1 (G1)" from the top to the bottom. Has a signal light. From the top to the bottom, the 5-lamp type traffic signal body 61 shown in FIG. 4D is "yellow 3 (Y3), yellow 2 (Y2), red (R), yellow 1 (Y1), green 1 (G1 ) "5 signal lights arranged in the order of". As an exception, when the traffic light main body 61 shown in FIG. 5D is a high-speed progress display 5-lamp type used in an actual hokuhoku line, “green 2 (G 2) / green 1 from top to bottom” Five signal lights are arranged in the order of (G1), yellow 1 (Y1), red (R), green 2 (G2) ". Furthermore, the 6-lamp type traffic light main body 61 shown in FIG. 5 (e) is "green 2 (G2), yellow 3 (Y3), yellow 2 (Y2), red (R), yellow 1" It has six signal lights arranged in the order of (Y1) and green 1 (G1) ". Here, when the traffic light main body 61 shown in FIG. 6 (e) is a high-speed progress indicator 6-lamp type used in a hokuhoku line, "Yellow 2 (Y2) · Green 2 (G2 ), Red (R), green 1 (G1), yellow 1 (Y1), green 2 (G2) ". Note that these signal lamps are not limited to light emitting diodes, and may be other light emitters that emit light when electrically connected.

  A series of lighting patterns of the traffic signal main body 61 is switched with a lighting pattern similar to that of an actual traffic signal based on the control signal in order to ensure the reality as a model. As an example, the five-lamp traffic signal shown in FIG. 4D will be described. There are five lighting patterns of ““ stop ”,“ warning ”,“ caution ”,“ deceleration ”, and“ progress ”. “Stop” means that the train must be stopped before the next signal, and only the signal light “red” is lit. “Warning” means traveling at 25 km / h or less, and only the signal light “yellow 3” and the signal light “yellow 1” are lit. “Caution” means traveling at 45 km / h (55 km / h) or less, and only the signal light “yellow 1” is lit. “Deceleration” means traveling at 75 km / h (65 km / h) or less, and only the signal light “yellow 2” and the signal light “green 1” are lit. “Progress” means progress under the maximum speed, and only the signal lamp “green 1” is lit. In addition to the above lighting patterns, there is a “deceleration” lighting pattern that means traveling at 105 km / h or less between “Deceleration” and “Progress”, and the signal light “Yellow 2” and the signal light “Green 1” are Flashes. The actual product is used on the Keikyu Line.

  Further, a series of lighting patterns of the traffic signal main body 61 differs depending on the type of the traffic signal main body 61, but it is possible to cope with various types by using a different printed wiring board 61 b for each traffic signal main body 61. On the printed wiring board 61b, a wiring pattern for electrically connecting the input terminals PI1 to PI4 of the mounting portion 61a and a plurality of diodes corresponding to signal lights is patterned. The wiring pattern varies depending on the type of the traffic signal main body 61, and accordingly, a signal lamp to which a control signal input to the input terminals PI1 to PI4 is supplied is set for each type.

  FIG. 5 is a circuit diagram showing wiring patterns related to various types of traffic signal main bodies 61. The short-time two-lamp type signal body 61 shown in FIG. 2A is provided with two diodes G1, R, and the anode (anode) of the diode R is connected to the input terminal PI4 and the cathode ( The cathode) is connected to the input terminal PI1. On the other hand, the anode of the diode G1 is connected to the input terminal PI4, and the cathode is commonly connected to the input terminal PI2 and the input terminal PI3. Further, the long-time two-lamp type traffic light body 61 shown in FIG. 2B is provided with two diodes G1, R, and the anode of the diode R is connected to the input terminal PI4, and the cathode thereof is Commonly connected to the input terminal PI1 and the input terminal PI2. On the other hand, the anode of the diode G1 is connected to the input terminal PI4, and the cathode thereof is connected to the input terminal PI3.

  As shown above, the 3-6 lamp signal main body 61 shown in each of FIGS. 3C to 1I includes at least three diodes among the diodes R, G1, G2, Y1, Y2, and Y3. Yes. In each of the 3 to 6 lamp type signal device main bodies 61, the wiring patterns from these diodes to the input terminals PI1 to PI4 are different for each type of diode. For example, the diode R has an anode connected to the input terminal PI4 and a cathode connected to the input terminal PI1. The diode G1 has an anode connected to the input terminal PI4 and a cathode connected to the input terminal PI3. The diode G2 has an anode connected to the input terminal PI2, and a cathode connected to the input terminal PI4. The diode Y1 has an anode connected to the input terminal PI4 and a cathode connected to the input terminal PI2. The diode Y2 has an anode connected to the input terminal PI1 and a cathode connected to the input terminal PI4. The diode Y3 has an anode connected to the input terminal PI3 and a cathode connected to the input terminal PI4.

  Next, a detection signal output from the sensor 62 to the control device 63 will be described. The sensor 62 detects the timing at which the train 5 traveling on the rails 2a and 2b passes a predetermined position. The sensor 62 is attached on the road bed 2c located at the center of the pair of rails 2a and 2b. As the sensor 62, for example, a touch sensor that is already employed in an automatic traffic light (product number: 5556 or 5551) marketed by the applicant of the present application can be used. In this type of sensor 62, each time the wheels of the train 5 pass on the sensor 62, an H level detection signal is output in the form of a pulse. In addition to the inexpensive touch sensor, an optical sensor, a magnetic sensor, or the like may be used as the sensor 62 that detects the passage timing of the train 5.

  The control device 63 provides a plurality of phases 1 to 6, and when the passage of the train 5 is detected by the sensor 62, the phases 1 to 6 are switched at a predetermined timing with reference to the passage timing. At the same time, in each phase, a control signal set in advance for each phase is output from the control device 63 to the traffic signal body 61. For example, when a detection signal indicating the passage timing of the train 5 is input from the sensor 62 to the control device 63, the control device 63 shifts to phase 1 and outputs a control signal corresponding to phase 1. Subsequently, at a predetermined timing, for example, after 2 seconds have elapsed, the control device 63 shifts from phase 1 to phase 2 and outputs a control signal corresponding to phase 2. In this way, in the phase 1 to the phase 6, the series of lighting patterns are executed while being sequentially switched. In the present invention, six phases are provided. However, the present invention is not limited to this, and an arbitrary number of phases may be set.

  FIG. 6 is an explanatory diagram of control signals output from the control device 63. In the figure, control signals generated by the control device 63 corresponding to the respective phases 1 to 6 and inputted to the input terminals PI1 to PI4 of the mounting portion 61a via the output terminals PO1 to PO4 of the connector 64 are shown. ing. Each of the input terminals PI1 to PI4 is set to any one of plus energization (+), minus energization (−), switching energization (+/−), and no energization according to an input control signal. Specifically, when a positive current is input to the input terminal as a control signal, the input terminal is in a positive energization state. On the other hand, when a negative current is input to the input terminal, the input terminal is in a negative energization state. In addition, when a positive current and a negative current are alternately input to the input terminal at a constant cycle, the input terminal is in a switching energization state. Further, when the current as the control signal is not input to the input terminal, the input terminal is not energized. In each phase, the control device 63 generates a common control signal regardless of the type of the signal device body 61 attached to the connector 64 and outputs the common control signal to the signal device body 61. For example, in Phase 1, in any of the 2 to 6-lamp type signal device body 61, a negative current is input to the input terminal PI1, and a positive current is input to the input terminal PI4 as a control signal. Condition. Thereby, it is not necessary to generate a control signal for each type of the traffic signal body 61, and the structure of the control device 63 can be simplified.

  FIG. 7 is a circuit diagram showing a series of lighting patterns in a 5-lamp type traffic signal. (A)-(f) has shown the lighting pattern of the 5-lamp type traffic light main part 61 in each phase 1-6. In the figure, the diodes shown in black are the diodes that emit light in each phase. Here, a series of lighting patterns in the 5-lamp type traffic signal body 61 will be described, and description of other types of traffic signal bodies 61 will be omitted, but it should be noted that a common control signal is used regardless of the type. I want.

  First, in phase 1 shown in FIG. 5A, the control device 63 inputs a negative current to the input terminal PI1, and also inputs a positive current to the input terminal PI4. At the same time, the input terminals PI2 and PI3 are not energized. As a result, the input terminal PI1 is in a minus energization state, and the input terminal PI4 is in a plus energization state. Accordingly, the anode of the diode Y3 is in a non-energized state and its cathode is in a positively energized state, so that the anode and cathode are not electrically connected. The anode of the diode Y2 is negatively energized and the cathode thereof is positively energized, so that the diode Y2 is connected in the reverse direction and does not light up the display. The anode of the diode R is in a positive energization state and its cathode is in a negative energization state, whereby the diode R is forward-connected and emits light. Since the anode of the diode Y1 is in a positive energization state and its cathode is in a non-energization state, the anode and cathode are not electrically connected. Since the anode of the diode G1 is in a positive energization state and its cathode is in a non-energization state, the anode and cathode are not electrically connected. Therefore, only “red” lighting display is performed. In this way, the control device 63 controls the traffic signal body 61 by the polarity of the current as the control signal.

  In phase 2 shown in FIG. 5B, the control device 63 continuously inputs a negative current to the input terminal PI2 and inputs a positive current to the input terminal PI4 for a predetermined first period. . The control device 63 continuously inputs a positive current to the input terminal PI3 and inputs a negative current to the input terminal PI4 for a predetermined second period following the first period. These first period and second period are periodically repeated in phase 2. Further, in these periods, the input terminal to which no current is input is in a non-energized state. Therefore, in the first period, in the 5-lamp type traffic signal body 61, the diode Y1 is forward-connected and emits light. On the other hand, in the second period, the diode Y3 is forward-connected and emits light. Here, by repeating the light emission of the diode Y1 in the first period and the light emission of the diode Y3 in the second period at a period that cannot be visually discriminated, the diode Y1 and the diode Y3 are simultaneously turned on over the phase 2. You can make it look like you are. That is, the control device 63 can simultaneously turn on a plurality of signal lamps by alternately setting the polarity of the current as the control signal in one lighting pattern. As a result, in the traffic signal main body 61, it is possible to simplify the wiring pattern for lighting a plurality of signal lights.

  In phase 3 shown in FIG. 5C, the control device 63 inputs a negative current to the input terminal PI2, and inputs a positive current to the input terminal PI4. An input terminal to which no current is input is in a non-energized state. Thereby, in the 5-lamp type traffic signal body 61, the diode Y1 is forward-connected and emits light. Subsequently, in phase 4 shown in FIG. 4D, the control device 63 inputs a negative current to the input terminal PI3, and inputs a positive current to the input terminal PI4, and the input terminal A second period in which a positive current is input to PI1 and a negative current is input to input terminal PI4 is repeated. Further, in these periods, the input terminal to which no current is input is in a non-energized state. Therefore, in the 5-lamp type traffic signal main body 61, the diode G1 emits light in the first period, and the diode Y2 emits light in the second period. In phase 5 shown in FIG. 5E, the control device 63 inputs a negative current to the input terminal PI3 and inputs a positive current to the input terminal PI4. Thus, the diode G1 emits light in the 5-lamp type traffic signal body 61. Further, in phase 6 shown in FIG. 5F, the control device 63 inputs a first period in which a negative current is input to the input terminal PI3 and a positive current is input to the input terminal PI4, and the input terminal A second period in which a positive current is input to PI2 and a negative current is input to the input terminal PI4 is repeated. Further, in these periods, the input terminal to which no current is input is in a non-energized state. Therefore, in the 5-lamp type traffic signal main body 61, the diode G1 emits light in the first period, and no diode emits light in the second period.

  FIG. 8 is an explanatory diagram of lighting patterns in various types of traffic signal main bodies 61. In the above-described 5-lamp type signal device body 61, the control device 63 sequentially switches between phases 1 to 6, whereby a single diode or a plurality of diodes corresponding to each phase emit light. Similarly, in each of the 2 to 6-lamp type signal device main bodies 61, each diode emits light with an individual lighting pattern for each phase based on a common control signal. That is, the control device 63 sequentially switches m (m ≧ 2) lighting patterns for each signal device body 61 by supplying a common control signal to various types of signal device bodies 61. Further, the control signal defines n (n ≧ m), which is not dependent on the type of the traffic signal main body 61, and six phases in the present embodiment. As can be seen from the figure, each of the phases 1 to 6 defines the minimum unit of the lighting pattern, and the lighting pattern is defined as a combination of the phases 1 to 6. Accordingly, one lighting pattern is defined by a single phase or a plurality of consecutive phases. For example, in the case of a two-lamp type for a short time, the lighting pattern (R) is defined by phase 1 and the lighting pattern (G1) is defined by five phases 2-6. That is, in the short-time two-lamp system, two lighting patterns (m = 2) are defined by a combination of a total of six phases (n = 6). Similarly, in the six-lamp type, six lighting patterns (m = 6) are defined by combinations of six phases (n = 6). In other words, for the traffic signal body 61 having the largest number of lighting patterns, the number m of lighting patterns is the same as the number n of phases, and for the other traffic signal bodies 61, the number m of lighting patterns is the number n of phases. Smaller than. As described above, the m lighting patterns are defined by a combination of n phases specified by the circuit connection relationship in the traffic signal body. In the present embodiment, the circuit connection relationship is uniquely specified by the wiring pattern of the printed wiring board 61b, and can be changed by using another type of printed wiring board 61b. The circuit connection relationship may be changed by reversing the polarity of the diode.

  Thus, in this embodiment, a series of lighting patterns of the signal lamp is uniquely determined by the connection relation of the different lines for each type of the traffic signal main body 61. That is, although a series of lighting patterns varies depending on the type of the traffic signal main body 61, it is easy to deal with each type by changing the connection relation of the line for each traffic signal main body 61. As a result, a module other than the traffic signal body 61, for example, a module in which a control device is mounted can be shared, and a computer program for controlling the traffic signal body 61 can be unified. This makes it possible to commercialize a type of railway model traffic signal at a low price.

  In addition to the control method according to the above-described embodiment, the control signal may be changed by switching jumper pins, switches, and the like provided on the control device 63 side and changing the processing contents of the computer program or the like. As a result, it is possible to easily and flexibly cope with a wider variety of traffic signal main bodies 61. For example, if the input terminal PI3 is changed from "-" to blank in phase 6 by switching the program, and the input terminal PI4 is changed from "±" to "-", G1 disappears and the high-speed progress current six lights It becomes the lighting pattern of the formula.

  In the phases 1 to 6, the signal lamps that are turned on blink at a cycle that cannot be visually discerned when the control signals input to the input terminals PI1 to PI4 are turned on / off at high speed. This is for suppressing the lighting brightness of the signal lamps from being different for each phase depending on the number of signal lamps to be lit.

  In the above-described embodiment, the power of the railway model traffic signal 6 is turned on / off by operating the power unit 3, but a power switch is provided in the traffic signal 6, and the on / off of the traffic signal 6 is directly switched by this switch. May be.

  In the above-described embodiment, the example in which the control signal is supplied to the signal device main body 61 by directly connecting the connector 64 and the mounting portion 61a has been described. However, the present invention is not limited to this. For example, the control signal may be supplied using a non-contact data carrier technology (RFID) or the like.

  Further, in the above-described embodiment, a configuration in which the traffic signal main body 61 can be attached and detached, in other words, a configuration in which the user can change the traffic signal main body 61 to another type afterwards has been described. However, the present invention can be similarly applied to a configuration in which the signal device main body 61 is fixedly attached, such as directly attaching the printed wiring board 61b to the control device 63 side in a factory production line. This is because even in this case, there is an effect that the common control device 63 can easily and flexibly cope with various types of traffic signal main bodies 61.

The figure which shows an example of the layout which has arranged the signal for the railway model A perspective view of a traffic light for a model train with the traffic light installed A perspective view of a traffic signal for a model train with the traffic signal body removed. Perspective view showing variations of the traffic light body Circuit diagram showing wiring patterns for various types of traffic signal bodies Illustration of control signal Circuit diagram showing lighting pattern in 5-lamp type traffic signal Illustrating lighting patterns in various types of traffic signal bodies

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Layout 2 Rail part 3 Power unit 4 Code 5 Train 6 Railway model traffic light 61 Traffic signal body 61a Mounting part 61b Printed wiring board 62 Sensor 63 Controller 64 Connector

Claims (3)

In traffic lights for model trains,
A control device;
A connector provided in the control device, comprising a plurality of output terminals;
A signal body having a plurality of input terminals that are selected from a plurality of different lighting patterns of at least one signal lamp, are detachably attached to the connector, and are electrically connectable to the plurality of output terminals. And
The control device defines m (m ≧ 2) phases corresponding to the number of the lighting patterns most common among the plurality of types of traffic signal bodies as a common control signal independent of the type of the traffic signal body. A control signal to be supplied to the signal body through the plurality of output terminals,
The traffic signal body is configured to change the connection relationship between the plurality of input terminals and the signal light for each type of the traffic signal body, and based on the m phases defined by the control signal, A railway model traffic light that lights up in n (n ≦ m) lighting patterns according to the type . 2. The signal body except for the one having the largest lighting pattern has a connection relationship such that a plurality of consecutive phases among the m phases have the same lighting pattern. A traffic light for a model railway. As the signal lamp, having a first light emitting diode and a second light emitting diode connected to a certain input terminal in opposite directions,
In one phase, the control device alternately switches the current polarity of the control signal supplied to the input terminal so that the first light emitting diode and the second light emitting diode are turned on simultaneously. The traffic signal for a railway model according to claim 1 or 2, characterized in that it is shown.

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