Railway pull-in route auxiliary signal station track digital indicator
By combining a digital track indicator with turnout position sensors and photoelectric sensors, the problem of unstable track switching at turnout junctions was solved, ensuring the safe entry of trains into the station and achieving stability and safety of railway route auxiliary signals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOYANG RAILWAY EQUIP TECH DEV CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-12
AI Technical Summary
现有技术中，铁路进站进路辅助信号仅通过信号灯控制列车进站操作，但在道岔交接处尖轨无法调节到位时，信号灯无法判定轨道切换，导致列车无法稳定进站，存在安全隐患。
The system employs a digital track indicator, uses turnout position sensors to monitor track switching in real time and combines them with photoelectric sensors, and utilizes a programmable logic controller to execute synchronous judgment logic to ensure that track switching actions are in place. Guide rails and guard rails are set up to ensure train continuity and smoothness, and a backup power supply is activated to ensure safe operation in the event of a power supply failure.
This technology enables stable track switching at turnout junctions, ensuring safe train entry into the station, avoiding safety accidents caused by improper track switching, and improving the reliability and safety of station entry operations.
Smart Images
Figure CN224225078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway station entry route auxiliary signal technology, specifically a railway station entry route auxiliary signal track digital indicator. Background Technology
[0002] Railway station entry and route auxiliary signals are key equipment to ensure the safe entry of trains into the station. They guide trains to adjust their speed and path through a combination of various signals.
[0003] Railway station entry route auxiliary signals work in concert with various signal types, including repeater, guide, and shunting signals, combined with flashing yellow and double yellow displays, to ensure trains safely adjust their paths and speeds in complex station environments. Drivers must strictly follow signal instructions and adhere to speed limits to complete entry operations. However, current technology only controls train entry by issuing commands through signal lights. At switch junctions, if the switch rail cannot be properly adjusted, the train cannot enter the station stably, and the signal lights cannot determine whether a track switch has been achieved. If the train continues to enter the station, unstable entry is likely to occur, potentially leading to accidents due to violations or loss of control. Therefore, we propose a digital track indicator for railway station entry route auxiliary signals. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a digital track indicator for auxiliary signals of railway station entry routes. It solves the problem that when trains are controlled to enter the station by simply issuing commands through control lights, the train cannot enter the station stably when the switch rail cannot be adjusted properly at the turnout junction, and the signal lights cannot determine whether track switching has been achieved.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a railway station entry route auxiliary signal track digital indicator, comprising a track digital indicator unit, wherein the track digital indicator unit is electrically connected to a photoelectric sensor and a turnout position sensor, the turnout position sensor is installed on the track unit to monitor in real time whether the track changing action is in place, and the photoelectric sensor is installed in the signal unit to convert the optical signal into an electrical signal for output; the track digital indicator unit comprises:
[0006] Backup power supply, which is used to provide temporary power during power outages;
[0007] Mounting base, which is mounted on the track, is used to install a backup power supply;
[0008] The main body of the digital track indicator is mounted on the side of the backup power supply. The main body of the digital track indicator is used to display the signal display on the contact detection module and the signal unit.
[0009] Electrical connection ports are located on both sides of the main body of the track digital display, and these ports are used for electrical connection with the turnout position sensor and the photoelectric sensor.
[0010] Preferably, the track unit includes a main track and a siding track, which are linked by a switch.
[0011] Preferably, the signal unit includes:
[0012] The signal pole is equipped with three lights that illuminate red, green, and yellow respectively, and the lights are activated according to the station entry instruction;
[0013] The main signal light has two lights on it, one white and one blue, which are used to illuminate according to shunting instructions at the turnout.
[0014] The shunting signal lights are installed on the ground, and the signal poles and main signal lights are installed on the shunting signal lights.
[0015] Preferably, the main body of the digital track indicator is equipped with a disassembly cover, which facilitates the inspection and maintenance of the internal components of the digital track indicator by removing the disassembly cover.
[0016] Preferably, protective covers are fixedly connected to both sides of the disassembly cover. The protective covers are located on both sides of the main body of the digital track indicator and are used to protect the electrical connection ports.
[0017] Preferably, the bottom end of the protective cover has an installation groove.
[0018] Preferably, the mounting slot is provided corresponding to the electrical connection port, and the mounting slot is used to connect the electrical connection port to the photoelectric sensor and the turnout position sensor.
[0019] This utility model discloses a digital indicator for auxiliary signals of railway station entry routes, which has the following beneficial effects:
[0020] This railway station entry route auxiliary signal track digital indicator uses turnout position sensors installed at the switch rails of the main line and siding tracks to monitor the completion of track switching actions in real time and transmit signals. Guide rails are installed between the main line and siding tracks to ensure the continuity and smoothness of train passage through precise gauge, level, and direction adjustments. Guard rails are installed at intersections to prevent wheel flange derailment, and the turnout point guides the wheels during transition. A programmable logic controller (PLC) is installed in the main body of the track digital indicator to receive input signals from photoelectric sensors in the signal unit and turnout position sensors in the track unit, executing synchronization judgment logic. The turnout position sensors compare the timing and status of the two signals through a preset program; if the allowable time difference is exceeded or the status is inconsistent, a fault is triggered. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the signal unit structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the digital indicator unit for the stock track of this utility model.
[0025] In the diagram: 1. Track unit; 11. Main track; 12. Side track; 2. Signal unit; 21. Signal pole; 22. Main signal light; 23. Shunting signal light; 3. Track digital indicator unit; 31. Backup power supply; 32. Mounting base; 33. Track digital indicator body; 34. Electrical connection port; 35. Removal cover; 36. Protective cover; 37. Mounting slot. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] This application provides a digital track indicator for auxiliary signals used in railway station entry. It solves the problem that simply controlling trains to enter the station via signal lights is insufficient, especially at turnout junctions where the switch rails cannot be properly adjusted, preventing stable train entry and making it impossible for the signal lights to determine if track switching has occurred. The solution involves installing turnout position sensors at the switch rails of the mainline track 11 and the siding track 12 to monitor track switching in real time and transmit signals. Guide rails are installed between the mainline track 11 and the siding track 12, ensuring continuity and smoothness during train passage through precise gauge, level, and direction adjustments. Guard rails are installed at intersections to prevent wheel flange derailment, and the turnout point rails guide wheel transition. A programmable logic controller (PLC) is installed in the main body 33 of the digital track indicator. This PLC receives input signals from the photoelectric sensors in the signal unit 2 and the turnout position sensors in the track unit 1, and executes synchronization judgment logic. The turnout position sensors compare the timing and status of the two signals using a preset program; if the allowable time difference is exceeded or the status is inconsistent, a fault is triggered.
[0028] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0029] This utility model discloses a digital indicator for railway station entry route auxiliary signal tracks.
[0030] Example 1:
[0031] According to the appendix Figure 1-3 As shown, the system includes a track digital indicator unit 3, which is electrically connected to a photoelectric sensor and a turnout position sensor. The turnout position sensor is installed on the track unit 1 to monitor in real time whether the track changing action is in place. The photoelectric sensor is installed in the signal unit 2 to convert the light signal into an electrical signal for output. The track digital indicator unit 3 includes:
[0032] Backup power supply 31 is used to provide temporary power during power outages;
[0033] Mounting base 32, which is mounted on the rail, is used to mount backup power supply 31;
[0034] The main body 33 of the track digital display is installed on the side of the backup power supply 31. The main body 33 of the track digital display is used to display the signal display on the contact detection module and the signal unit 2.
[0035] Electrical connection ports 34 are located on both sides of the main body 33 of the track digital display. Electrical connection ports 34 are used to make electrical connections with the turnout position sensor and the photoelectric sensor.
[0036] A programmable logic controller is installed in the main body 33 of the track digital display, which receives input signals from the photoelectric sensor in the signal unit 2 and the turnout position sensor on the track unit 1, and executes synchronization judgment logic.
[0037] The turnout position sensor compares the timing and status of two signals through a preset program. If the time difference exceeds the allowable time difference or the status is inconsistent, a fault is triggered.
[0038] The programmable logic controller (PLC) includes a timer module and a digital comparator. The timer module calculates the time difference between two signals and determines whether synchronization is achieved within a specified threshold. The digital comparator, implemented in both hardware and software, compares the level states of the two signals to determine if they are consistent.
[0039] Programmable logic controllers, photoelectric sensors, and turnout position sensors are existing and mature structures, and will not be described in this application.
[0040] Track unit 1 includes a main line track 11 and a siding track 12, which are linked by a switch.
[0041] The turnout position sensor is installed at the switch rails of the main line track 11 and the siding track 12 to monitor whether the track changing action is in place in real time and to transmit signals. Guide rails are set between the main line track 11 and the siding track 12. Through precise adjustment of track gauge, level and direction, the continuity and smoothness of train passage are ensured. Guard rails are set in the crossing area to prevent wheel flange derailment, and the wheels are guided to transition through the frog point rail.
[0042] Signal unit 2 includes:
[0043] Signal pole 21 is equipped with three lights that illuminate red, green and yellow respectively, and the lights are activated according to the station entry instruction;
[0044] The main signal light 22 has two lights on it, one white and one blue, which are used to illuminate according to shunting instructions at the switch.
[0045] The shunting signal light 23 is installed on the ground, and the signal pole 21 and the main signal light 22 are installed on the shunting signal light 23.
[0046] Example 2:
[0047] According to the appendix Figure 1-3 As shown, a disassembly cover 35 is installed on the main body 33 of the digital track indicator, and the internal components of the main body 33 can be easily inspected and repaired by removing the disassembly cover 35.
[0048] Protective covers 36 are fixedly connected to both sides of the disassembly cover 35. The protective covers 36 are located on both sides of the main body 33 of the digital display and are used to protect the electrical connection port 34.
[0049] The bottom end of the protective cover 36 has an installation groove 37.
[0050] Mounting slot 37 is provided corresponding to electrical connection port 34. Mounting slot 37 is used to connect with photoelectric sensor and turnout position sensor through electrical connection port 34.
[0051] Working principle: When a train needs to enter the station through track unit 1, the two signal units 2 are used to issue instructions to the train at the main track 11 and the siding track 12 respectively.
[0052] When the main signal light 22 turns red, stop. When the main signal light 22 turns green, proceed straight ahead at full speed. When the main signal light 22 turns yellow, slow down and stop in front of the next signal. When the main signal light 22 turns yellow and green, lateral passage through the turnout signal acquisition equipment is permitted.
[0053] At this time, the photoelectric sensing information on the main signal light 22 is transmitted to the main body 33 of the track digital indicator and received by the programmable logic controller set inside the main body 33. At the same time, the turnout position sensors corresponding to the main track 11 and the siding track 12 monitor whether the track changing action is in place and output a track changing completion signal, which is received by the programmable logic controller set inside the main body 33 of the track digital indicator.
[0054] The programmable logic controller receives input signals from the photoelectric sensor and the turnout position sensor, and executes synchronization judgment logic. When the signal light is on, the photoelectric sensor outputs a high-level signal to the turnout position sensor. After the track switching is completed, the turnout position sensor feeds back a position signal to the turnout position sensor. The turnout position sensor uses a timer and a logic comparison module to determine whether the two signals are synchronized. If they are not synchronized, the turnout position sensor triggers an alarm and executes safety control.
[0055] When the main signal light 22 executes the driving command, the turnout position sensor outputs a track switching completion signal, and at this time, normal trains drive according to the command of the main signal light 22;
[0056] When the main signal light 22 executes the driving command, the turnout position sensor outputs a signal that the rail switching is not completed. At this time, the main body 33 of the track digital display will issue a fault alarm.
[0057] When the main signal light 22 indicates the execution of a driving command, the turnout position sensor outputs a track switching completion signal, and the main body 33 of the track digital display unit issues a fault alarm.
[0058] When the main signal light 22 executes the driving command, the turnout position sensor outputs a track switching completion signal. Comparing the timing and status of the two signals, if the allowable time difference is exceeded, the main body 33 of the track digital indicator will trigger a fault.
[0059] When both the main track 11 and the siding 12 have trains that need to pass, one train is allowed to proceed first based on the arrival determination. At this time, the corresponding signal pole 21 lights up white, indicating that shunting operations are permitted, but safety must be observed. The turnout position sensor outputs a track switching completion signal. At this time, normal trains proceed according to the instructions of signal pole 21. The signal pole 21 corresponding to the other train lights up blue, indicating that shunting operations are prohibited. The driving instructions are then executed after the train has passed.
[0060] When the system power supply is abnormal, the backup power supply 31 is activated to supply power to the main body 33 of the track digital indicator to ensure the comparison of the two signals and ensure safe driving. When the power supply to the main body 33 of the track digital indicator is abnormal, the current safe state is automatically locked and the red light signal is maintained.
[0061] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A digital indicator for auxiliary signal tracks for railway station entry routes, characterized in that, The system includes a track digital indicator unit (3), which is electrically connected to a photoelectric sensor and a turnout position sensor. The turnout position sensor is installed on the track unit (1) to monitor in real time whether the track changing action is in place. The photoelectric sensor is installed in the signal unit (2) to convert the light signal into an electrical signal for output. The track digital indicator unit (3) includes: Backup power supply (31), which is used to provide temporary power in the event of a power outage; Mounting base (32), which is mounted on the track, is used to mount a backup power supply (31); The main body (33) of the track digital display is installed on the side of the backup power supply (31). The main body (33) of the track digital display is used to display the signal display on the contact detection module and the signal unit (2). Electrical connection ports (34) are located on both sides of the main body (33) of the track digital display, and the electrical connection ports (34) are used to make electrical connections with the turnout position sensor and the photoelectric sensor.
2. The railway station entry route auxiliary signal track digital indicator according to claim 1, characterized in that, The track unit (1) includes a main track (11) and a siding track (12), which are linked by a switch.
3. The railway station entry route auxiliary signal track digital indicator according to claim 1, characterized in that, The signal unit (2) includes: The signal pole (21) is equipped with three lights, which light up red, green and yellow respectively, and the lights are turned on according to the station entry instruction; The main signal light (22) has two lights on it, one white and one blue, which are used to illuminate the lights according to the shunting instructions at the turnout. The shunting signal light (23) is installed on the ground, and the signal pole (21) and the main signal light (22) are installed on the shunting signal light (23).
4. The railway station entry route auxiliary signal track digital indicator according to claim 1, characterized in that, The main body (33) of the track digital display is equipped with a disassembly cover (35), which facilitates the inspection and maintenance of the internal components of the main body (33) of the track digital display by disassembling the disassembly cover (35).
5. The railway station entry route auxiliary signal track digital indicator according to claim 4, characterized in that, Protective covers (36) are fixedly connected to both sides of the disassembly cover (35). The protective covers (36) are located on both sides of the main body (33) of the digital track indicator. The protective covers (36) are used to protect the electrical connection port (34).
6. The railway station entry route auxiliary signal track digital indicator according to claim 5, characterized in that, The bottom end of the protective cover (36) is provided with an installation groove (37).
7. The railway station entry route auxiliary signal track digital indicator according to claim 6, characterized in that, The mounting slot (37) is opened corresponding to the electrical connection port (34), and the mounting slot (37) is used to cooperate with the electrical connection port (34) to make electrical connections with the photoelectric sensor and the turnout position sensor.