Device for monitoring state of rail transit turnout switch rail

Abstract

The utility model discloses a device for monitoring the state of a rail transit turnout switch rail. The device comprises a short column color lamp signal machine, a point switch, a point switch monitoring module, a buzzer, vehicle-mounted signal equipment, a train automatic protection subsystem and a transponder transmission module. The switch machine monitoring module is used for detecting a signal when a switch machine rotates a turnout, monitoring the rotating distance of the turnout in real time, and outputting the signal to the vehicle-mounted signal equipment and the short column color lamp signal machine through the transponder transmission module; the train automatic protection system has the functions of remotely monitoring whether the turnout position is correctly opened or not and the tight attaching state of a turnout switch rail, and monitoring information is transmitted to the vehicle-mounted signal equipment, so that a train can be stopped in time, and the train automatic protection system has the advantages that the train automatic protection system is safe and reliable. And the information is transmitted to prompt equipment such as a short column color lamp signal machine and a buzzer, so that a basis is provided for judgment of a driver, and the driver can make a response timely and quickly to avoid accidents.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation safety, in particular to a device for monitoring the state of a rail transportation switch point rail. Background Art

[0002] Unless there are special circumstances, subway trains usually adopt the automatic train driving mode (CTC mode) protected by ATP. In addition, there is also a manual driving mode (ITC mode) protected by ATP. At this time, the driver runs the train based on ground signals and on-board signal displays; in the restricted manual driving mode (RM mode), the driver can only drive the train at a limited speed; in the non-restricted manual driving mode (NRM mode), the train is no longer protected by ATP, and the driver takes full responsibility for the train's operation safety.

[0003] Trains typically operate in complex environments along the mainline. Tunnels are dark, and the noise and vibration generated by train travel can affect the driver's normal operation. Normally, the first three operating modes rely on a computer interlocking system to confirm the correct direction of switch opening. However, computer interlocking systems can often malfunction unexpectedly, leaving the driver completely responsible for ensuring the train's full operation. The driver's vision makes it difficult to observe and accurately judge the tightness of the switches during operation.

[0004] The vibrations of the switch rail when it's not in close contact with the stock rail are much more intense than when they are in close contact. Furthermore, the stability of the switch structure itself is relatively poor, so the vibrations generated when a vehicle passes through the switch are more intense than on a normal line. This has an impact on maintaining the stability of the switch equipment, extending the service life of the switch rail, and ensuring driving safety. Even a large gap between the switch rail and the stock rail can cause the wheels of the train to collide with the tip of the switch rail when entering the switch, damaging the switch rail. In severe cases, the train wheels may enter a different track, resulting in wheelset damage or derailment, seriously endangering driving safety.

[0005] Therefore, the utility model is based on the switch point rail close monitoring device provided in the case of a computer interlocking system failure and the non-restricted manual driving mode (NRM mode), which monitors the switch mutation and the state of the switch point rail, fully and quickly understands the road information, avoids the driver's misjudgment, and ensures that the train is always running in a safe condition. Summary of the Invention

[0006] The purpose of the utility model is to provide a device for monitoring the status of the switch point rail of rail transit, so as to solve the problem proposed in the above background technology that when a computer interlocking system fails and the driver is in a non-restricted manual driving mode (NRM mode), he cannot accurately judge the close contact of the switch point rail and monitor the direction of the switch opening, which is easy to misjudge.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for monitoring the status of a rail transit switch point rail, comprising a short-column color light signal, a switch, a switch monitoring module, a buzzer, an on-board signal device, an automatic train protection subsystem and a transponder transmission module; the switch monitoring module is used to monitor the signal when the switch rotates the switch, monitor the distance the switch rotates in real time, and output it to the on-board signal device and the short-column color light signal through the transponder transmission module; the on-board signal device transmits the signal in the transponder transmission module to the automatic train protection subsystem and the buzzer.

[0008] As a preferred technical solution of the present invention, the switch monitoring module and the transponder transmission module are connected via a track transponder data transmission cable signal.

[0009] As a preferred technical solution of the present invention, the automatic train protection subsystem and the on-board signal equipment are connected via a signal cable.

[0010] As a preferred technical solution of the present invention, the short column color light signal adopts a monochrome light signal, and the input end of the short column color light signal is connected to the switch monitoring module by a signal cable.

[0011] As a preferred technical solution of the present invention, the transponder transmission module adopts an active transponder, and a variable signal is transmitted between the transponder transmission module and the vehicle-mounted signal equipment.

[0012] As a preferred technical solution of the present invention, the on-board signaling device transmits the electrical signal transmitted by the transponder transmission module to the automatic train protection subsystem.

[0013] As a preferred technical solution of the present invention, the buzzer is an active buzzer, and the buzzer is connected to the vehicle-mounted signal equipment via a signal cable.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model uses a switch monitoring module to monitor the action signal of the turnout when it rotates, confirms the direction of the turnout opening, and determines whether the turnout has been rotated into place. It monitors the status of the turnout point rail in real time and transmits it to the train automatic protection subsystem in the on-board signal equipment through the transponder transmission module, so that the train can automatically stop in an emergency, avoiding accidents caused by the driver's misjudgment or untimely response; at the same time, the detected information is transmitted to the short-column color light signal machine, and the short-column color light signal machine outputs a display signal according to the information display light color status. In addition, the buzzer reminder in the car provides double safety protection. The driver can quickly discover and determine the line fault point, ensure driving safety, and make the train run smoothly.

[0016] 2. The utility model has high safety and reliability, and adopts an easily identifiable short-column color light signal and an automatic train protection system. Compared with the image presentation method, the driver is in a highly nervous state when running on the main line, and the image recognition may not be accurate. The present invention is more conducive to the train making timely and effective responses when the switch suddenly changes and the point rail is not closely attached.

[0017] 3. The utility model has stronger applicability. The buzzer in the driver's cab and the short-column color light signal can double as a reminder of the turnout situation. It is also applicable to complex tunnel environments (such as foggy visibility and curves). BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the planar structure of a medium-low column color light signal machine of the utility model;

[0020] Figure 3 This is a schematic diagram of the close contact and separation of the point rail in the utility model;

[0021] Figure 4 This is a principle block diagram of the utility model.

[0022] In the figure: 1. Short column color light signal; 2. Switch; 3. Switch monitoring module; 4. Buzzer; 5. On-board signal equipment; 6. Automatic train protection subsystem; 7. Transponder transmission module. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Please see the attached Figure 1 -Attached Figure 4The present invention provides a technical solution: a device for monitoring the state of the point rail of a rail transit switch, comprising a short-column color light signal 1, a switch monitoring module 3, a buzzer 4, an on-board signal device 5, an automatic train protection subsystem 6, and a transponder transmission module 7; the switch monitoring module 3 is used to monitor the action signal of the switch 2 when it moves the switch, wherein an action rod displacement sensor can be set on the point rail, and the axial displacement information of the point rail is collected through the action rod displacement sensor; an integrated laser distance sensor with integrated light emission, reception, and distance calculation functions can also be used to monitor the travel of the point rail to ensure that the switch can be closely attached to the base rail when moving the point rail, thereby ensuring the safety of operation. The collected point rail information is then output to the on-board signal device 5 and the short-column color light signal 1 through the transponder transmission module 7, and the on-board signal receiving device 5 transmits the received signal to the buzzer 4 and the automatic train protection subsystem 6.

[0025] In this embodiment, the switch monitoring module 3 is used to monitor the action signal when the switch switches the turnout and output the action signal to the on-board signal equipment 5 through the transponder transmission module 7. The on-board signal equipment 5 is connected to the buzzer 4 and the train automatic protection subsystem 6. At the same time, the signal detected by the switch monitoring module 3 is transmitted to the short-column color light signal control module 1; the action signal when the turnout is switched is detected by the switch monitoring module 3 to determine whether the turnout is opened in place and whether the point rail is tightly attached. The signal detected by the switch monitoring module 3 is transmitted to the transponder module 7 through the track transponder data transmission cable. The train on-board signal equipment 5 receives the signal from the switch monitoring module 3 through the transponder transmission module 7, and determines the opening status of the turnout point rail, and transmits the signal to the buzzer 4 and the train automatic protection subsystem 6 for responding to dangerous situations and the train making an emergency stop in time; the short-column color light signal 1 receives the signal sent by the switch monitoring module 3 to display the status of the color light.

[0026] Specifically, the switch monitoring module 3 and the transponder transmission module 7 are connected via a track transponder data transmission cable.

[0027] In this embodiment, since the switch monitoring module 3 and the transponder transmission module 7 are connected via the track transponder data transmission cable, the effectiveness and reliability of signal transmission can be increased, and failure of data transmission can be avoided.

[0028] Specifically, the short column color light signal machine 1 adopts a monochrome light signal machine, and the input end of the short column color light signal machine 1 is connected to the switch machine monitoring module 3 using a signal cable.

[0029] In this example, the switch monitoring module 3 detects the switch point rail signal and transmits it to the short column color light signal 1. The signal received by the color light signal is converted internally to control the internal switch to be turned on and off. After connection, the light color is displayed, red means no passing, and off means passing is allowed; the driver can directly judge the state of the switch point rail and whether the vehicle can pass safely through the display of the light color; avoid the driver's misjudgment due to poor psychological and physiological conditions when driving on the main line, which may lead to train accidents; at the same time, if the train suddenly stops in front of the switch, the driver can immediately judge through the display of the color light signal whether the reason for the emergency stop of the train may be affected by the switch point rail, providing a basis for the driver to judge the main line driving fault.

[0030] Specifically, one end of the on-board signal receiving device 5 is connected to the transponder transmission module 7 , and the other end is connected to the automatic train protection subsystem 6 .

[0031] In this example, the on-board signal equipment 5 receives the switch change signal detected by the switch monitoring module 3 output by the transponder transmission module 3, and transmits it to the buzzer 4 and the train automatic protection subsystem 6. The train automatic protection subsystem determines whether it is safe to pass, so that the train can respond to the emergency stop in time. The buzzer 4 can provide auxiliary prompts in tunnels with insufficient visibility or on curves, providing double protection for the safe travel of the train on the main line.

[0032] Specifically, the transponder in the transponder transmission module 7 is connected using a track transponder data transmission cable, and variable information is transmitted between the transponder transmission module 7 and the on-board signaling device 5 .

[0033] In this example, the transponder transmission module can transmit message information to onboard signaling equipment. It can send variable information or fixed information via trackside signaling equipment to communicate the switch point status to the train, allowing the train to respond promptly. The transponder transmission module can send information such as switch status, tunnel speed limits, and train location to the train's onboard signaling equipment.

[0034] Specifically, the automatic train protection subsystem 6 receives instructions from the onboard signaling device 5 and detects the state of the switch point rail, so that the automatic train protection subsystem responds.

[0035] Specifically, the buzzer 4 also receives instructions from the vehicle-mounted signaling device 5 .

[0036] In this example, the automatic train protection subsystem receives information from onboard signaling equipment and promptly determines the status of the switch point rail based on this information. It then responds promptly to prevent train jams, derailments, and other accidents that could cause casualties. A buzzer, combined with a low-beam color signal light, can alert the driver to the switch point status in foggy tunnels and on curves.

[0037] The working principle and use process of the utility model are as follows: the switch monitoring module 3 monitors the action signal when the switch rotates, confirms the direction of the switch opening, and determines whether the switch is rotated in place, monitors the status of the switch point rail in real time, and transmits the detected information to the short column color light signal 1, which displays the light color status according to the information;

[0038] The detection results of the switch monitoring module 3 are then transmitted to the transponder transmission module 7 via the track transponder data transmission cable. The onboard signaling device 5 receives the information from the transponder transmission module and transmits it to the buzzer 4 and the automatic train protection subsystem 6. The automatic train protection subsystem 6 receives the information transmitted by the onboard signaling device 5, determines the status of the switch point rail based on the information, and responds promptly. This new example reduces the pressure on the mainline driver and avoids human error. It has the following advantages:

[0039] 1. The present invention monitors the direction and status of the switch point rail opening through the switch machine detection device, and promptly transmits the switch point rail status to the train automatic protection subsystem. The train can respond quickly to avoid the driver's misjudgment or untimely response, which may lead to accidents. By installing a color light signal machine and a buzzer, dual safety protection is provided. The driver can quickly discover and determine the line fault point and report it to the dispatcher in time, thereby improving the mainline driving efficiency.

[0040] 2. The present invention is low-cost, simple and easy to operate. By simply adding a data interface, the display signal can be output through the short-column color light signal machine, and the train automatic protection subsystem in the on-board signal equipment can realize automatic stopping of the train in an emergency.

[0041] 3. The present invention has high safety and reliability, and adopts an easily identifiable short-column color light signal and an automatic train protection system. Compared with the image presentation method, the driver is in a highly nervous state when running on the main line, and the image recognition may not be accurate. The present invention is more conducive to the train making timely and effective responses in the case of sudden turnout changes and loose contact of the point rail.

[0042] 4. The present invention has stronger applicability. The buzzer in the driver's cab and the short-post color light signal can double as a reminder of the turnout situation. It is also applicable to complex tunnel environments (such as foggy visibility and curves).

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformation, simple replacement based on the technical solution of the present invention, etc., shall fall within the scope of protection of the present invention.

Claims

1. A device for monitoring the status of a railroad switch rail, characterized by: It includes a short column color light signal machine (1), a switch machine (2), a switch machine monitoring module (3), a buzzer (4), an on-board signal device (5), an automatic train protection subsystem (6) and a transponder transmission module (7); The switch monitoring module (3) is used to monitor the signal when the switch (2) rotates the switch, monitor the distance the switch rotates in real time, and output the signal to the on-board signal equipment (5) and the short column color light signal (1) through the transponder transmission module (7); The on-board signaling device (5) transmits the signal in the transponder transmission module (7) to the automatic train protection subsystem (6) and the buzzer (4).

2. The device for monitoring the state of a rail transit switch point according to claim 1, characterized in that: The switch monitoring module (3) and the transponder transmission module (7) are connected via a track transponder data transmission cable signal.

3. The device for monitoring the state of a rail transit switch point according to claim 1, characterized in that: The automatic train protection subsystem (6) and the onboard signal equipment (5) are connected via a signal cable.

4. The device for monitoring the state of a rail transit switch point rail according to claim 1, characterized in that: The short column color light signal (1) adopts a monochrome light signal, and the input end of the short column color light signal is connected to the switch monitoring module (3) by using a signal cable.

5. The device for monitoring the state of a rail transit switch point according to claim 1, characterized in that: The transponder transmission module (7) adopts an active transponder, and a variable signal is transmitted between the transponder transmission module (7) and the vehicle-mounted signal device (5).

6. The device for monitoring the state of a rail transit switch point according to claim 1, characterized in that: The on-board signaling device (5) transmits the electrical signal transmitted by the transponder transmission module (7) to the automatic train protection subsystem (6).

7. The device for monitoring the state of a rail transit switch point according to claim 1, characterized in that: The buzzer (4) is an active buzzer, and the buzzer (4) is connected to the vehicle-mounted signal device (5) via a signal cable.

Images