Key parameter monitoring system for turnout and conversion equipment

Abstract

The utility model relates to the technical field of railway engineering, in particular to a turnout and conversion equipment key parameter monitoring system. The sensor group in the system can monitor a plurality of key parameters of the turnout and the conversion equipment at the same time, comprehensive equipment state information is provided, and the defects of traditional manual inspection and an existing monitoring system are overcome. Wherein the data acquisition unit is connected with the sensor group in a wired manner, and can acquire data of each sensor in real time; and the data concentrator is connected with the system server through a communication network, so that remote transmission and centralized management of data are realized, and the timeliness of the data is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway engineering, and particularly relates to a monitoring system for key parameters of turnouts and conversion equipment. Background Art

[0002] With the rapid development of railway transportation, turnouts and conversion equipment, as key components in railway lines, their safety and reliability are crucial for railway operation. Traditional maintenance of turnouts and conversion equipment mainly relies on regular inspections and manual patrols, and there are many deficiencies in this method:

[0003] 1. Low detection frequency: Due to manpower and time limitations, regular inspections often have a long interval, making it difficult to detect subtle changes in the equipment status in a timely manner;

[0004] 2. Limited detection scope: Manual inspections are difficult to comprehensively cover all key parameters, especially some hidden parts or parameters that require special equipment to measure.

[0005] In recent years, with the development of sensing technology, communication technology, and data processing technology, some automated monitoring systems have begun to be applied to railway equipment monitoring. However, there are still some problems in the existing monitoring systems:

[0006] 1. Single monitoring parameter: Most systems can only monitor a few parameters and cannot comprehensively reflect the equipment status;

[0007] 2. Low system integration: The monitoring of different parameters often requires independent systems, increasing the complexity of management and maintenance.

[0008] Therefore, there is an urgent need for a system that can comprehensively, real-time, and accurately monitor the key parameters of turnouts and conversion equipment to improve the accuracy and comprehensiveness of fault detection. Content of the Utility Model

[0009] To solve the above problems, the utility model discloses a monitoring system for key parameters of turnouts and conversion equipment.

[0010] To achieve the above object, the utility model provides the following technical solution: A monitoring system for key parameters of turnouts and conversion equipment, comprising:

[0011] A sensor group, a data collector, a data aggregator, a system server, and a display terminal;

[0012] The sensor group is installed at a predetermined position of the turnout and conversion equipment;

[0013] The data collector is fixed on the sleeper and is connected to the sensor group by a wired method;

[0014] The data aggregator is connected to the data collector;

[0015] The system server is connected to the data aggregator through a communication network;

[0016] The display terminal is connected to the system server.

[0017] Among them, the sensor group includes a vibration sensor, a position sensor, a distance sensor, and an image sensor;

[0018] The data collector is connected to the data aggregator by power line carrier;

[0019] The data aggregator is connected to the system server by Ethernet or optical cable.

[0020] Furthermore, the data collector includes: a power line carrier module, an on-board power management module, a core processor module, a sensor interface module, an AD module, a storage module, and on-board sensors;

[0021] The sensor interface module includes a USB interface and an analog sensor interface;

[0022] The on-board sensors include a dual-channel three-axis acceleration sensor and a temperature sensor.

[0023] The data aggregator includes: a terminal interface, a power line carrier interface module, a power conversion module, a wave trap, a DC power distributor, a coupler, and a data collector interface;

[0024] The power line carrier module is used to implement the power line as the communication and power supply interface between the data aggregator and the data collector;

[0025] The wave trap is connected to the power conversion module and is used to provide the operating voltage for the data aggregator;

[0026] The coupler is used to receive data from multiple data collectors; the terminal interface is used to connect to the system server.

[0027] The sensor group further includes:

[0028] The first group of sensors arranged at the relative position of the switch point of the switch tongue;

[0029] The second group of sensors arranged at the relative position of the switch point of the movable point rail;

[0030] The first group of sensors and the second group of sensors are used to collect the dynamic and static parameters of the switch tongue and the movable point rail of the switch.

[0031] The sensor group also includes:

[0032] An XY-direction sensor for monitoring the change in the XY direction, the XY-direction sensor is arranged in a sensor box and fixed on the switch tie through a bracket;

[0033] A bounce sensor for monitoring the bounce in the Z direction, the bounce sensor is fixed on the sleeper through a bracket;

[0034] A stock rail position sensor and a telescopic amount sensor for monitoring the contact status and telescopic amount of the stock rail;

[0035] A distance and position sensor for monitoring the position of the switch tie.

[0036] The XY-direction sensor is connected to the data collector through a conducting wire in a wire duct;

[0037] The stock rail position sensor and the telescopic amount sensor are arranged in the space of the anti-bounce iron at the tip of the movable stock rail.

[0038] The sensor group in the system of the embodiment of the present application can simultaneously monitor multiple key parameters of the turnout and the conversion equipment, provide comprehensive equipment status information, and make up for the deficiencies of traditional manual inspections and existing monitoring systems. Among them, the data collector is connected to the sensor group in a wired manner, and can collect the data of each sensor in real time; the data aggregator and the system server are connected through a communication network, realizing remote transmission and centralized management of the data, and greatly improving the timeliness of the data. Brief Description of the Drawings

[0039] Figure 1 It is a schematic diagram of the overall structure of the monitoring system in Embodiment 1 of the present application;

[0040] Figure 2 It is a schematic diagram of the structure of the data collector in the embodiment of the present application;

[0041] Figure 3 It is a schematic diagram of the structure of the data aggregator in the embodiment of the present application;

[0042] Figure 4 It is a schematic diagram of the installation position of a sensor in the embodiment of the present application;

[0043] Figure 5 It is a schematic diagram of the installation position of the XY-direction sensor in the embodiment of the present application;

[0044] Figure 6 It is a schematic diagram of the installation position of the bounce sensor in the embodiment of the present application;

[0045] Figure 7 It is a schematic diagram of the installation of the stock rail position sensor and the telescopic amount sensor in the embodiment of the present application. Detailed Description of the Embodiment

[0046] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0047] The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in the specification and appended claims of the present utility model, the singular forms "a", "an", "the above", "said", and "this" are also intended to include expressions such as "one or more", unless the context clearly indicates otherwise.

[0048] Reference to "one embodiment" or "some embodiments" etc. described in this specification means that a specific feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present utility model. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments" etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0049] Embodiment 1:

[0050] The key parameter monitoring system for the switch and conversion equipment in this embodiment includes: a sensor group, a data collector, a data aggregator, a system server, and a display terminal.

[0051] See Figure 1 , for ease of understanding, the above system is divided into two parts, namely the terminal and the monitoring end;

[0052] Among them, the monitoring end includes a sensor group, a data collector, and a data aggregator; the terminal includes a system server and a display terminal.

[0053] Specifically, the sensor group is installed at a predetermined position of the switch and conversion equipment, and includes a vibration sensor, a position sensor, a distance sensor, an image sensor, a conversion force sensor, and a temperature sensor;

[0054] Among them, the vibration sensor: is used to collect the vibration acceleration of the sleeper and the vibration data of the movable frog.

[0055] The position sensor: is used to collect the positions of the stock rail and the switch rail, the position of the spacer, and the contact status of the movable frog.

[0056] The distance sensor: is used to measure the expansion and contraction amounts of the stock rail and the switch rail, the displacement of the sleeper, the distance of the wheel insulating groove, and the expansion and contraction amount of the movable frog.

[0057] Image sensor: used to monitor the dimensional changes of spacer plates and assist in monitoring other visual parameters.

[0058] Conversion force sensor (as a type of position sensor): used to measure the pulling force parameters of the conversion device.

[0059] Temperature sensor (which can be an additional function of the vibration sensor): used to measure the rail temperature.

[0060] These sensors together constitute a comprehensive monitoring system that can collect various key parameters of the turnout and conversion equipment, including but not limited to the data listed above. According to specific application requirements, the type and quantity of sensors can be flexibly adjusted to achieve the optimal monitoring effect.

[0061] The data collector is fixed on the sleeper and connected to the sensor group in a wired manner. The data collected by the sensor group is transmitted to the data collector.

[0062] The data concentrator is connected to the data collector to achieve the concentration of valid data.

[0063] The system server is connected to the data concentrator through a communication network. The system server processes, stores, and manages the data uploaded by the data concentrator.

[0064] The display terminal is connected to the system server and is used to display data and output status information such as warnings. The system server also has a data interface to provide a data import function for other terminals.

[0065] This structural design realizes a complete monitoring process from data collection, preprocessing, concentration to final processing and display, effectively meeting the monitoring requirements of the key parameters of the turnout and conversion equipment.

[0066] The solution of this embodiment realizes the comprehensive monitoring of the key parameters of the turnout and conversion equipment through the combination of multiple sensors. The collection of data such as vibration, position, and distance can timely reflect the operating status and potential problems of the equipment. The direct connection between the data collector and the sensors ensures the real-time and accuracy of the data, which helps to detect abnormal situations in a timely manner. The use of the data concentrator simplifies the system structure and improves the reliability and efficiency of data transmission.

[0067] In a possible implementation manner, the specific implementation of the above solution is as follows:

[0068] Data collector: It adopts an industrial-grade shell with waterproof, dustproof, and earthquake-resistant features, and is built with a high-performance processor and a large-capacity memory. It is connected to each sensor through a waterproof connector and uses the RS485 or CAN bus communication protocol.

[0069] Data aggregator: An industrial-grade router is adopted, supporting 4G / 5G wireless communication, with multiple Ethernet interfaces, and can be connected to multiple data collectors simultaneously.

[0070] System server: A high-performance server is adopted, equipped with a large-capacity hard disk array.

[0071] Display terminal: An industrial-grade touch-screen computer is adopted and installed in the control room.

[0072] Specific configuration of the sensor group:

[0073] a. Vibration sensor: A multi-axis acceleration sensor is adopted

[0074] b. Position sensor: A linear displacement sensor is used

[0075] c. Distance sensor: A laser ranging sensor is selected

[0076] d. Image sensor: A network camera with more than 8 million pixels is adopted

[0077] e. Conversion force sensor: A tension and compression sensor is used

[0078] f. Temperature sensor: A thermocouple temperature sensor is selected

[0079] Data collector:

[0080] A high-performance and low-power data acquisition controller is adopted

[0081] Processor: Multi-core, multi-threaded, high-frequency, with high cache, and low TDP

[0082] Interface: Multiple

[0083] Communication: Multiple ports

[0084] Data aggregator: The port structure is modular, and the number of connected devices is not less than 300

[0085] Display screen: The resolution is greater than 1920x1080.

[0086] Example 2: Please refer to Figure 2 , The data collector specifically includes a power line carrier module, an on-board power management module, a processor module, a sensor interface module, an analog-to-digital converter module, a storage module, an eMMC management module, and on-board sensors; it can also include an encryption module and an RJ45 interface.

[0087] In a specific solution:

[0088] Power line carrier module: Connects to the external aggregator to achieve power supply and data transmission; connects to the on-board power management module to provide AC power input;

[0089] On-board power management module: includes an AC-DC power module and a DC-DC power module; the AC-DC power module is connected to the power line carrier module to receive AC power; the DC-DC power module is connected to the AC-DC power module for voltage conversion; and provides the required operating voltage to all other modules;

[0090] Processor module: as the core of the system, it conducts data interaction and control with all other modules;

[0091] Sensor interface module: specifically includes:

[0092] Image acquisition interface: connected to the processor module through a USB-HUB module;

[0093] Vibration sensor interface, displacement sensor interface, distance sensor interface, and redundant backup analog / digital sensor interface: connected to the processor module through an analog-to-digital converter module;

[0094] Analog-to-digital converter module: respectively connected to the analog output interfaces of the sensor interface module and the processor module, and is used to provide digitized sensor data;

[0095] Storage module: directly connected to the processor module for data storage

[0096] eMMC management module: directly connected to the processor module for managing embedded storage

[0097] On-board sensors: include on-board acceleration sensors and on-board temperature sensors; directly connected to the processor module to provide the status data of the collector itself;

[0098] Encryption module (optional): directly connected to the processor module for data encryption

[0099] RJ45 interface (optional): connected to the processor module through an Ethernet controller to provide a wired network connection option

[0100] Power connection:

[0101] Power line carrier module → On-board power management module → All other modules;

[0102] Data flow:

[0103] External sensors → Sensor interface module → Analog-to-digital converter module (for analog signals) → Processor module → Storage module / eMMC management module → Power line carrier module / RJ45 interface → External network;

[0104] Internal sensor data flow:

[0105] On-board sensor → Processor module;

[0106] Among them, the power line carrier module serves as the interface for the collector to communicate with the aggregator and the power supply, achieving power supply while completing data transmission;

[0107] In this embodiment, the processor module of the data collector adopts the ARM+FPGA architecture, which can efficiently complete operations such as data acquisition and processing of multiple types of sensors. At the same time, the data can also be stored in the storage module, such as the SD storage module or the eMMC management module, etc., for subsequent viewing and use.

[0108] In addition, considering the monitoring of the working environment and status of the collector itself, a dual-channel on-board three-axis acceleration sensor and a temperature sensor are added.

[0109] The solution of this embodiment integrates multiple functional modules in one device, reducing external connections and improving system reliability. The built-in storage module facilitates local storage and subsequent use of data. The on-board sensor can monitor the working status of the collector itself, improving system reliability.

[0110] Embodiment 3: Please refer to Figure 3 , The data aggregator is used to aggregate the data of multiple data collectors and transmit it to the system server. Its main functional modules include the terminal interface, the power line carrier interface module, the power conversion module, the wave trap, the DC power distributor, the coupler, and the data collector interface.

[0111] The power line carrier module realizes the power line as the interface for the data aggregator to communicate with the data collector and the power supply. On the one hand, it passes through the wave trap and then generates the voltage required for the operation of the data aggregator through the power conversion module, and provides the necessary working voltage for each wave trap, etc. The data of each data collector enters the coupler through the corresponding interface, and finally is uniformly transmitted to the system server by the power line carrier module. The terminal interface refers to the connection interface between the data aggregator and the system server, mainly connected through Ethernet or optical cable.

[0112] In the specific implementation:

[0113] Power line carrier interface module connection: The input end is connected to the external power line, the data output end is connected to the coupler, and the power output end is connected to the wave trap;

[0114] Wave trap 0 connection: The input end is connected to the power output end of the power line carrier interface module, and the output end is connected to the power conversion module;

[0115] Power conversion module connection: The input end is connected to the output end of the wave trap, and the output end is connected to the DC power distributor; specifically, it may include an AC-DC power module and a DC-DC power module; the AC-DC power module is used to receive the AC power; the DC-DC power module is connected to the AC-DC power module for voltage conversion;

[0116] DC power distributor connection: The input end is connected to the output end of the power conversion module, and the output end provides the required working voltage to the data acquisition interface through the wave trap 1-N respectively;

[0117] Coupler connection: The signal input end is connected to the data collector interface; the signal output end is connected to the data input end of the power line carrier interface module;

[0118] Data collector interface connection: The external end is connected to each data collector, and the internal end is connected to the signal input end of the coupler;

[0119] Terminal interface connection: The external end is connected to the system server through Ethernet or optical cable, and the internal end is connected to the data output end of the power line carrier interface module;

[0120] Detailed connection process:

[0121] Power line → Power line carrier module;

[0122] Power line carrier module (power output) → Wave trap → Power conversion module → DC power distributor → Each functional module;

[0123] Data collector → Data collector interface → Coupler → Power line carrier module (data input);

[0124] Power line carrier module (data output) → Terminal interface → System server;

[0125] The above connection method realizes the following functions:

[0126] Bidirectional transmission of power and data: The power supply on the power line and data communication are realized through the power line carrier module.

[0127] Power isolation and conversion: Through the wave trap and the power conversion module, the power on the power line is converted into the working voltage required by the device.

[0128] Data aggregation: Through the data collector interface and the coupler, the data of multiple data collectors are aggregated to the power line carrier module.

[0129] Upward data transmission: The aggregated data is transmitted to the system server through the terminal interface.

[0130] The data aggregator in this embodiment uses the power line to achieve data transmission and power supply, reducing the need for additional wiring. It supports multiple communication interfaces and can adapt to different network environments. It can connect multiple data collectors, facilitating system expansion.

[0131] Embodiment 4: The sensor group includes a first group of sensors arranged at the relative positions of the switch points of the switch points;

[0132] A second group of sensors arranged at the relative positions of the moving points of the switch points;

[0133] The first group of sensors and the second group of sensors are used to collect the dynamic and static parameters of the switch points and the moving points of the switch points.

[0134] See Figure 4 , specifically, a first group of sensors 101, 102, 103 are arranged at the relative positions of the switch points of the switch points, and a second group of sensors 101X and 102X are arranged at the relative positions of the moving points of the switch points to collect the dynamic and static parameters of the switch points (moving points) of the switch.

[0135] Among them, the dynamic parameters include:

[0136] The change in the gauge of the basic rail when the train passes through the switch;

[0137] The change in the tightness of the switch point (moving point);

[0138] The vertical jump of the switch point (moving point);

[0139] The vibration acceleration value of the switch sleeper;

[0140] The synchronous working condition of multiple switch machines to switch a group of switch points (moving points);

[0141] The output force of the switch machine and the resistance of the switch point (moving point) at the traction point;

[0142] The static parameters include:

[0143] The tightness state and stroke of the switch point (moving point);

[0144] The expansion and contraction of the basic rail and the switch point (moving point);

[0145] The rail temperature of the basic rail;

[0146] The insufficient displacement of the bent part of the switch point;

[0147] The position state of the two rails at the spacer;

[0148] The displacement of the switch sleeper at the conversion point.

[0149] See Figure 5, the sensor group further includes an XY-direction sensor. The XY-direction sensor 301 is disposed inside the box body, fixed to the switch sleeper via a bracket 302, and connected to a data collector 304 by a conductive wire inside a wire duct 303. A sign 305 is provided at the corresponding positions of the stock rail and the switch rail for monitoring its expansion and contraction amount.

[0150] See Figure 6 , in a possible implementation manner, the sensor group further includes a bounce sensor 401. The bounce sensor 401 is fixed to the sleeper via a bracket 402, corresponding to the bottom of the switch (point) rail, for monitoring the bounce amount of the switch (point) rail when a train passes.

[0151] See Figure 7 , a schematic installation diagram of a point rail position sensor and an expansion and contraction amount sensor. By using the space of the anti-bounce iron at the tip of the movable point rail 501, a point rail position sensor 502 and an expansion and contraction amount sensor 503 are arranged.

[0152] The solution of this embodiment, by arranging a variety of sensors at key positions, covers dynamic and static parameters, realizes comprehensive monitoring of the operation status of the turnout and the conversion equipment, and improves the accuracy and timeliness of fault detection.

[0153] Power line carrier transmission is adopted in the throat area, and Ethernet or optical cable is adopted for long distance. It can reduce wiring work, lower installation and maintenance costs, and at the same time ensure the reliability and efficiency of data transmission.

[0154] Marks are provided at the corresponding positions of the stock rail and the switch rail, and monitored by the XY-direction sensor. It can accurately measure the expansion and contraction amount and displacement of the track, and improve the monitoring accuracy.

[0155] The track status when a train passes is monitored by the bounce sensor. Abnormal conditions when a train passes can be detected in time, and the operation safety is improved.

[0156] Sensors are installed by using the space of the anti-bounce iron at the tip of the movable point rail. On the premise of not affecting the normal operation of the turnout, the monitoring of the position and expansion and contraction amount of the point rail is realized.

[0157] The technical means disclosed by the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, and also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present utility model.

Claims

1. A monitoring system for key parameters of a turnout and conversion equipment, characterized in that, Comprising: A sensor group, a data collector, a data aggregator, a system server, and a display terminal; The sensor group is installed at a predetermined position of the switch and conversion equipment; The data collector is fixed on the sleeper and is connected to the sensor group in a wired manner; The data aggregator is connected to the data collector; The system server is connected to the data aggregator through a communication network; The display terminal is connected to the system server.

2. The monitoring system according to claim 1, wherein The sensor group includes a vibration sensor, a position sensor, a distance sensor, and an image sensor; The data collector and the data aggregator are connected by power line carrier; The data aggregator and the system server are connected by Ethernet or optical cable.

3. The monitoring system according to claim 1, characterized in that The data collector includes: a power line carrier module, an on-board power management module, a core processor module, a sensor interface module, an AD module, a storage module, and on-board sensors; The sensor interface module includes a USB interface and an analog sensor interface; The on-board sensors include a dual-channel three-axis acceleration sensor and a temperature sensor.

4. The monitoring system according to claim 1, characterized in that, The data aggregator includes: a terminal interface, a power line carrier interface module, a power conversion module, a wave trap, a DC power distributor, a coupler, and a data collector interface; The power line carrier interface module is used to implement the power line as the communication and power supply interface between the data aggregator and the data collector; The wave trap is connected to the power conversion module and is used to provide the operating voltage for the data aggregator; The coupler is used to receive data from multiple data collectors; the terminal interface is used to connect to the system server.

5. The monitoring system according to claim 1 or 2, characterized in that, The sensor group further includes: A first group of sensors arranged at the relative position of the switch point traction point; A second group of sensors arranged at the relative position of the movable point of the center rail traction point; The first group of sensors and the second group of sensors are used to collect the dynamic and static parameters of the switch point and the frog center rail.

6. The monitoring system according to claim 5, wherein The sensor group further includes: An XY direction sensor for monitoring the change amount in the XY direction, the XY direction sensor is arranged in a sensor box and is fixed on the switch sleeper through a bracket; A jump sensor for monitoring the jump amount in the Z direction, the jump sensor is fixed on the sleeper through a bracket; A center rail position sensor and a telescopic amount sensor for monitoring the close state and telescopic amount of the center rail; A distance and position sensor for monitoring the position of the switch sleeper.

7. The monitoring system according to claim 6, characterized in that: The XY direction sensor is connected to the data collector through a conducting wire in a wire management tube; The center rail position sensor and the telescopic amount sensor are arranged in the space of the anti-jump iron at the tip of the movable center rail.

Images