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Railway sand table simulation signal light-on circuit

A technology of analog signal and lighting circuit, applied in the direction of electric lamp circuit layout, electric light source, lighting device, etc., can solve the problems of large quantity, difficult control, heavy modification workload, etc., and achieve low cost, easy implementation, and easy popularization and application Effect

Inactive Publication Date: 2015-04-01
LIUZHOU RAILWAY VOCATIONAL TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When designing the signal lighting circuit, the filament relay in series in the circuit is required to pick up when the current is greater than 110mA, and cannot be picked up when the current is less than the current value, and the signal lights on the sand table are generally LEDs, and the passing current is only There are several mA. The previous method is to change the coil of the filament relay, but the quantity is large, the modification workload is large, and it is difficult to control

Method used

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  • Railway sand table simulation signal light-on circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A railway sand table analog signal lighting circuit, including an outdoor circuit and an indoor circuit, the indoor circuit is consistent with the site, the outdoor circuit includes a filament relay circuit and 3 sets of signal light circuits, and the signal light circuit is assembled through the indoor circuit output line connected to the output circuit of the filament relay circuit;

[0024] The signal lamp circuit has the same structure, including an LED signal lamp 4, a solid state relay 5, a high-power load 6 and an analog switch 7. The LED signal lamp, solid state relay and analog switch are sequentially connected to form a series circuit and then connected to the output circuit of the filament relay circuit , That is: the starting end of the series circuit, that is, one end of the LED signal light, is connected to the positive end of the output of the filament relay circuit, and the end of the series circuit, that is, the end of the analog switch is connected to t...

Embodiment 2

[0030] A railway sand table analog signal lighting circuit, the basic structure and signal light circuit structure are the same as those of the first embodiment, the difference is that the outdoor circuit includes a filament relay circuit and two sets of signal light circuits.

[0031] This embodiment is used for the lighting circuit of the exit and shunting signal machine, the first signal light circuit is a white light signal light circuit, and the second signal light circuit II is a blue light signal light circuit.

Embodiment 3

[0033] A railway sand table analog signal lighting circuit, the basic structure and signal light circuit structure are the same as the first embodiment, the difference is: the outdoor circuit includes a filament relay circuit and 5 sets of signal light circuits, which are used for the signal light circuit of the station.

[0034] In the above embodiment, the high-power load may also be a resistance above 24W.

[0035] working principle

[0036] A solid-state relay is connected in series in the signal lighting circuit to ensure that the current passing through the LED signal light is about 10mA. In this case, the solid-state relay is picked up; a high-power load of 24W or more is placed at both ends of the series circuit between the LED signal light and the solid-state relay. To meet the current requirements of the filament relay; the front contact of the solid state relay is connected in series on the high-power load, and the analog switch LK simulates the failure of the filam...

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Abstract

The invention discloses a railway sand table simulation signal light-on circuit which comprises an outdoor circuit and an indoor circuit, wherein the outdoor circuit comprises a filament relay circuit and at least two groups of signal lamp circuits; the signal circuit is connected with the output loop of the filament relay circuit through the indoor circuit; the signal lamp circuits are identical in structure and comprise LED signal lamps, solid relays and simulation circuits which are sequentially connected into serially connected circuits; the serially connected circuits are connected with the output loop of the filament relay circuit, that is, one end of each signal lamp is connected with the positive output electrode end of the filament relay circuit, one end of each simulation circuit is connected with the negative output electrode end of the filament relay circuit, large-power load and circuit break switches are connected in parallel at two ends of the serially connected circuits, and the circuit break switches are front contact switches of the solid relays. The railway sand table simulation signal light-on circuit can completely simulate real signal light-on, can also simulate filament faults, meets the practical training requirements of railway signal light-on experiment, is low in cost and easy to implement, and has great application and popularization values.

Description

technical field [0001] The invention relates to a control circuit technology of a railway traffic signal machine, in particular to a railway sand table analog signal lighting circuit. Background technique [0002] The training of railway signal professional and technical personnel requires that the teaching equipment is as consistent as possible with the equipment used on site. At present, most colleges and universities adopt the construction of railway training bases, combining indoor and outdoor, in order to improve the teaching level and strengthen students' skills Time. However, the indoor and outdoor commuting during teaching not only affects the learning efficiency but also cannot be taught intuitively. Therefore, railway colleges and universities that train railway professional and technical personnel generally use the construction of driving sand tables to train students for special types of railway work. However, the existing construction sand table has the followi...

Claims

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Application Information

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IPC IPC(8): H05B37/02
Inventor 唐匀生黄斌陶汉卿关琼
Owner LIUZHOU RAILWAY VOCATIONAL TECHN COLLEGE
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