Railway annunciator lighting simulation device

Abstract

A railway signal machine lighting simulation device realizes outdoor signal lamp simulation indication, verifies wiring correctness of an indoor signal lighting circuit, and improves railway signal construction efficiency. The device mainly comprises a signal acquisition module, a signal processing control module, a signal lamp simulation display module, a power supply module and the like. According to the invention, a circuit module is adopted for simulation, so that an incandescent bulb can be completely replaced, the current power supply voltage state can be monitored, and the current signal machine lighting state can be sent to a monitoring host in a communication mode; standardized and universal modules are adopted, the system can be reused, the system is suitable for different station yard scales, construction and debugging are convenient and fast, and the construction cost is low.

Description

Technical Field

[0001] The invention belongs to the field of railway signal application, and in particular relates to a railway signal lighting simulation device. Background Art

[0002] The existing railway station signal lighting circuit consists of an indoor lighting combination circuit, indoor connecting cables, an outdoor distribution panel, outdoor cables, an outdoor filament converter, and an outdoor bulb. The indoor lighting combination circuit is connected to the outdoor distribution panel via the indoor connecting cable, and the outdoor distribution panel is connected to the outdoor filament converter via the outdoor cable, and the outdoor filament converter is connected to the outdoor bulb. The outdoor distribution panel is the interface between the indoor cable and the outdoor cable.

[0003] During the construction and debugging of railway station signals, in order to improve construction efficiency and speed up construction progress, the installation and wiring of indoor and outdoor equipment are completed by construction personnel from different professional groups; in addition, since the indoor circuit needs to control multiple outdoor bulbs, there are many cables for connecting the outdoor and indoor areas. During the construction and debugging process, in order to ensure the joint debugging of the indoor and outdoor signal lighting circuits and the safety of construction, the indoor and outdoor equipment and wiring are verified separately after the construction is completed. Traditionally, in order to verify the lighting circuit of the indoor mechanical room combination frame signal, a temporary design and installation of a bulb signal simulation disk is adopted. The outdoor signal bulb needs to be simulated to cooperate with the verification of the logic of the indoor lighting circuit. This method has the problem of high power consumption of the bulb and is not energy-saving. The bulb failure rate is high during the construction and debugging process. The construction and wiring of the newly designed bulb simulation disk are complex and labor-intensive, and there are safety hazards during implementation. Summary of the invention

[0004] The purpose of the present invention is to develop a railway signal lighting simulation device, which can realize outdoor signal light simulation indication through ingenious design, verify the correctness of indoor signal lighting circuit wiring, and improve railway signal construction efficiency.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The railway signal lighting simulation device is composed of a signal acquisition module, a signal processing control module, a signal light simulation display module and a power supply module, wherein the signal acquisition module is electrically connected to the input of the signal processing control module; the output of the signal processing control module is electrically connected to the indicator light control module; the input of the signal acquisition module is connected to the outdoor distribution board of the external station through a cable; the power supply module is electrically connected to the signal acquisition module, the signal processing control module and the signal light simulation display module.

[0007] The working principle of the railway signal lighting simulation device is as follows: when working, the signal acquisition module collects the AC 220V voltage signal output by the indoor signal lighting circuit through the outdoor distribution board of the external station, and outputs a 3.3V low-voltage status signal to the signal processing control module after the signal acquisition module performs resistance-capacitance voltage reduction, filtering, photoelectric isolation and signal waveform shaping. After processing the collected status signal, the signal processing control module controls the corresponding indicator light of the signal light simulation display module to light up or turn off.

[0008] The signal acquisition module is composed of a fuse, a RC step-down acquisition circuit, a photoelectric isolation circuit, and an inverter; one end of the fuse is connected to an outdoor distribution board of an external station when the equipment is in use; the other end of the fuse is connected to the input of the RC step-down acquisition circuit; the output of the RC step-down acquisition circuit is electrically connected to the input of the photoelectric isolation module; the output of the photoelectric isolation module is electrically connected to the input of the inverter; and the output of the inverter is electrically connected to the input of the signal processing control module.

[0009] Preferably, the fuse is a self-resetting fuse.

[0010] The RC voltage step-down acquisition circuit is used to collect the AC 220V voltage signal output by the indoor signal lighting circuit and convert the output into a low voltage signal; the RC voltage step-down acquisition circuit is composed of multiple RC voltage step-down acquisition circuits according to the on-site application, and the output of each RC voltage step-down acquisition circuit is connected to the next-level photoelectric isolation circuit.

[0011] The photoelectric isolation circuit is used to limit, filter and isolate the input voltage state signal and then output a 3.3V state signal to be transmitted to the next-level inverter; the photoelectric isolation circuit is composed of multiple photoelectric isolation circuits according to field applications, the input of each photoelectric isolation circuit is connected to the RC step-down acquisition circuit of the previous level, and the output of each photoelectric isolation circuit is connected to the next-level inverter.

[0012] The inverter is used to shape the input signal waveform and transmit it to the signal processing control module; the inverter has an input connected to the previous photoelectric isolation circuit and an output connected to the signal processing control module; the photoelectric isolation circuit is composed of multiple inverters according to field applications.

[0013] The signal processing control module includes a microprocessor and peripheral circuits, which are used to process the collected signals and output control signals to the signal light simulation display module for light display.

[0014] The signal light simulation display module adopts an indicator light or a display screen to simulate the light display of a corresponding signal machine.

[0015] The power supply module is used to convert the input AC 220V power supply into the power supply voltage required by each module.

[0016] The present invention adopting the above technical solution has the following advantages:

[0017] The present invention adopts the principle of resistance-capacitance voltage reduction, has a simple circuit module structure, a small equipment operating current, low power consumption, a long service life, and is environmentally friendly and reliable.

[0018] The present invention adopts standardized and universal modules, and the interfaces are connected by crimping terminals, which can be reused and are suitable for different station yard scales. The construction and debugging are convenient and fast, and the construction cost is low.

[0019] The invention converts the input AC 220V high voltage into a low voltage signal. Compared with the construction and debugging of the traditional bulb signal simulation panel, the construction and debugging has a higher safety factor.

[0020] The present invention adopts a circuit module simulation which can completely replace the incandescent bulb and can also monitor the current power supply voltage state and send the current signal lighting state to the monitoring host through the communication mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the system structure of the present invention. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0023] Unless the context clearly requires otherwise, throughout the specification and claims, the words "include", "comprising" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to".

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] like Figure 1 As shown, the railway signal lighting simulation device is composed of a signal acquisition module, a signal processing control module, a signal light simulation display module and a power supply module, wherein the signal acquisition module is electrically connected to the input of the signal processing control module; the output of the signal processing control module is electrically connected to the indicator light control module; the input of the signal acquisition module is connected to the outdoor distribution board of the external station through a cable; the power supply module is electrically connected to the signal acquisition module, the signal processing control module and the signal light simulation display module.

[0026] The working principle of the railway signal lighting simulation device is as follows: when working, the signal acquisition module collects the AC 220V voltage signal output by the indoor signal lighting circuit through the outdoor distribution board of the external station, and outputs a 3.3V low-voltage status signal to the signal processing control module after the signal acquisition module performs resistance-capacitance voltage reduction, filtering, photoelectric isolation and signal waveform shaping. After processing the collected status signal, the signal processing control module controls the corresponding indicator light of the signal light simulation display module to light up or turn off.

[0027] The signal acquisition module is composed of a fuse, a RC step-down acquisition circuit, a photoelectric isolation circuit, and an inverter; one end of the fuse is connected to an outdoor distribution board of an external station when the equipment is in use; the other end of the fuse is connected to the input of the RC step-down acquisition circuit; the output of the RC step-down acquisition circuit is electrically connected to the input of the photoelectric isolation module; the output of the photoelectric isolation module is electrically connected to the input of the inverter; and the output of the inverter is electrically connected to the input of the signal processing control module.

[0028] Preferably, the fuse is a self-resetting fuse.

[0029] The RC voltage step-down acquisition circuit is used to collect the AC 220V voltage signal output by the indoor signal lighting circuit and convert the output into a low voltage signal; the RC voltage step-down acquisition circuit is composed of multiple RC voltage step-down acquisition circuits according to the on-site application, and the output of each RC voltage step-down acquisition circuit is connected to the next-level photoelectric isolation circuit.

[0030] The photoelectric isolation circuit is used to limit, filter and isolate the input voltage state signal and then output a 3.3V state signal to be transmitted to the next-level inverter; the photoelectric isolation circuit is composed of multiple photoelectric isolation circuits according to field applications, the input of each photoelectric isolation circuit is connected to the RC step-down acquisition circuit of the previous level, and the output of each photoelectric isolation circuit is connected to the next-level inverter.

[0031] The inverter is used to shape the input signal waveform and transmit it to the signal processing control module; the inverter has an input connected to the previous photoelectric isolation circuit and an output connected to the signal processing control module; the photoelectric isolation circuit is composed of multiple inverters according to field applications.

[0032] The signal processing control module includes a microprocessor and peripheral circuits, which are used to process the collected signals and output control signals to the signal light simulation display module for light display.

[0033] The signal light simulation display module adopts an indicator light or a display screen to simulate the light display of a corresponding signal machine.

[0034] The power supply module is used to convert the input AC 220V power supply into the power supply voltage required by each module.

[0035] The present invention adopts the principle of resistance-capacitance voltage reduction, has a simple circuit module structure, a small equipment operating current, low power consumption, a long service life, and is environmentally friendly and reliable.

[0036] The present invention adopts standardized and universal modules, and the interfaces are connected by crimping terminals, which can be reused and are suitable for different station yard scales. The construction and debugging are convenient and fast, and the construction cost is low.

[0037] The invention converts the input AC 220V high voltage into a low voltage signal. Compared with the construction and debugging of the traditional bulb signal simulation panel, the construction and debugging has a higher safety factor.

[0038] The present invention can monitor the voltage state of the input signal in real time, and can timely upload the signal state in cooperation with the single-chip microcomputer, thereby reserving an interface for the intelligent simulation disk.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A railway signal lighting simulation device, comprising a signal acquisition module, a signal processing control module, a signal light simulation display module and a power supply module, wherein the signal acquisition module is electrically connected to the input of the signal processing control module; the output of the signal processing control module is electrically connected to the indicator light control module; the input of the signal acquisition module is connected to an outdoor distribution board of an external station through a cable; the power supply module is electrically connected to the signal acquisition module, the signal processing control module and the signal light simulation display module; the signal acquisition module is composed of a fuse, a RC step-down acquisition circuit, a photoelectric isolation circuit and an inverter; wherein one end of the fuse is connected to the outdoor distribution board of an external station when the device is in use; the other end of the fuse is connected to the input of the RC step-down acquisition circuit; the output of the RC step-down acquisition circuit is electrically connected to the input of the photoelectric isolation module; the output of the photoelectric isolation module is electrically connected to the input of the inverter; the output of the inverter is electrically connected to the input of the signal processing control module.

2. The railway signal lighting simulation device according to claim 1, characterized in that : The fuse adopts self-recovery insurance.

3. The railway signal lighting simulation device according to claim 1, characterized in that :The RC voltage step-down acquisition circuit is used to collect the AC 220V voltage signal output by the indoor signal lighting circuit and convert the output into a low voltage signal; the RC voltage step-down acquisition circuit is composed of multiple RC voltage step-down acquisition circuits according to the on-site application, and the output of each RC voltage step-down acquisition circuit is connected to the next level of photoelectric isolation circuit.

4. The railway signal lighting simulation device according to claim 1, characterized in that : The photoelectric isolation circuit is used to limit, filter and isolate the input voltage state signal and then output a 3.3V state signal to be transmitted to the next-level inverter; the photoelectric isolation circuit is composed of multiple photoelectric isolation circuits according to the field application, the input of each photoelectric isolation circuit is connected to the RC step-down acquisition circuit of the previous level, and the output of each photoelectric isolation circuit is connected to the next-level inverter.

5. The railway signal lighting simulation device according to claim 1, characterized in that : The inverter is used to shape the input signal waveform and transmit it to the signal processing control module; the inverter has an input connected to the previous level photoelectric isolation circuit and an output connected to the signal processing control module; the photoelectric isolation circuit is composed of multiple inverters according to the field application.

6. The railway signal lighting simulation device according to claim 1, characterized in that The signal processing control module includes a microprocessor and peripheral circuits, which are used to process the collected signals and output control signals to the signal light simulation display module for light display.

7. The railway signal lighting simulation device according to claim 1, characterized in that The signal light simulation display module adopts indicator light or display screen to simulate the light display of the corresponding signal machine.

8. The railway signal lighting simulation device according to claim 1, characterized in that :The power supply module is used to convert the input AC 220V power supply into the power supply voltage required by each module.

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