KR102685607B1 - Cooling Fan Failure Diagnosis Prediction System for Railway Vehicles - Google Patents

Abstract

The present invention relates to a fault diagnosis and prediction system for cooling fans for railway vehicles. More specifically, it collects data on the position information of blowers and cooling fans and status information such as vibration and noise for each train compartment of a railway vehicle, and collects the data. It was invented to identify and warn the operational possibility of railway vehicles by determining whether there is an abnormality in the blower and cooling fan based on .
The present invention includes a passenger car module (20) that measures and collects sensing signals from a plurality of blowers (10), a cooling fan (11), and sensors installed in the fan driving unit, respectively, provided in each compartment of a railway vehicle;
a vehicle server (30) that collects the sensing signals collected from the passenger car module (20) and outputs them on a vehicle control screen;
a communication unit 40 that transmits the sensing signal collected by the vehicle server 30 to the ground server 50 or receives the transmission from the ground server 50 to the vehicle server 30;
Including a ground server 50 that diagnoses abnormalities and failure predictions of the blower 10 by comparing the sensing signal transmitted from the communication unit 40 with the reference value input to the storage device and displays it on the display unit 60. It is composed.

Description

Cooling Fan Failure Diagnosis Prediction System for Railway Vehicles}

The present invention relates to a fault diagnosis and prediction system for cooling fans for railway vehicles. More specifically, it collects data on the position information of blowers and cooling fans and status information such as vibration and noise for each compartment of a railway vehicle, and collects the data. It was invented to identify and warn the operational possibility of railway vehicles by determining whether there is an abnormality in the blower and cooling fan based on .

Due to recent technological developments, railway vehicles can drive automatically even without direct control by a crew member, and during automatic operation, they receive the speed limit and target speed of the operating section from the signal device on the track and perform propulsion and braking. was being operated.

In addition, large-capacity peripheral transformers are installed in railway vehicles to receive commercial power from KEPCO and transform it into power suitable for railway vehicles. As a large amount of current flows through the peripheral transformer, high-temperature heat is generated inside.

In addition, high-temperature heat is generated in the railway vehicle in the process of converting electrical energy into mechanical energy in the air conditioner and the propulsion unit of the railway vehicle to maintain a comfortable indoor environment, and the components inside the device are damaged by the high temperature heat. This effect shortens durability or causes malfunctions and component failures, so a blowing device must be provided to forcibly exhaust the heat.

That is, the blower is installed in a railroad car and is configured to improve the durability and safety of each component by forcibly cooling the heat of the operating part through the operation of a cooling fan.

However, heat is also generated in the blower and the motor for driving the cooling fan, and there have been cases where the blower overheats or stops working due to damage or malfunction of internal parts, and in this case, other operating parts There were problems with planned maintenance of railway vehicles, such as having to stop operation of railway vehicles and maintain blowers to prevent damage.

Republic of Korea Registered Utility Model Publication No. 20-0453329 Air conditioning and heating control device for railway vehicles (registration date April 15, 2011)

In order to solve the problems of the prior art as described above, the present invention assigns a number or name to each railroad car and each compartment to the blower device of the railroad car and operates the blower device and cooling fan while communicating with the ground server in real time. The purpose is to provide a fault diagnosis and prediction system for cooling fans for railway vehicles that allows real-time confirmation of their status.

In addition, the present invention is configured to collect the operating status of a plurality of blowers and cooling fans installed in each compartment for each compartment, collect them through the vehicle server of the organized railway vehicle, and communicate with the railway vehicle alone or a ground server. The purpose is to provide a cooling fan failure diagnosis and prediction system for railway vehicles that can check the operating status of the cooling fan in each compartment through the vehicle server even if each compartment is replaced and connected, and in the event of a failure, track the location using the linked number. .

In addition, the present invention is configured to determine failure and predict the time of failure by using vibration and noise data on the operating status of the blower and cooling fan, and can perform failure and prediction diagnosis through the measurement data, preventing damage to parts of the operating part and The purpose is to provide a fault diagnosis and prediction system for cooling fans for railway vehicles that can prevent failures in advance and enable planned maintenance of railway vehicles.

According to the present invention to solve such technical problems,

A passenger car module (20) that measures and collects sensing signals from a plurality of blowers (10), a cooling fan (11), and sensors installed in the fan driving unit, respectively, provided in each compartment of the railway vehicle;

a vehicle server (30) that collects the sensing signals collected from the passenger car module (20) and outputs them on a vehicle control screen;

a communication unit 40 that transmits the sensing signal collected by the vehicle server 30 to the ground server 50 or receives the transmission from the ground server 50 to the vehicle server 30;

Including a ground server 50 that diagnoses abnormalities and failure predictions of the blower 10 by comparing the sensing signal transmitted from the communication unit 40 with the reference value input to the storage device and displays it on the display unit 60. It is composed.

In addition, the ground server 50 includes an analysis unit 51 that compares the sensing signal received from the communication unit 40 with the average failure value input to the storage device; If the sensing signal compared and analyzed by the analysis unit 51 is above or below the allowable value, a list of accessories for the abnormal sensing signal is output to the display unit and a notification sound, and the list of accessories is transmitted to the railway vehicle through the communication unit 40. a warning unit 52; It may be configured to include a management unit 53 that transmits abnormal contents of the warning unit 52 to a mobile device that has acquired administrator authority.

In addition, the passenger car module 20 is provided with a vibration sensor on the induction transmission unit of the blower 10 and the compartment car body, and uses the vibration sensor to detect the vibration sensor between the induction motor unit and the induction motor unit at an interval of at least 10 seconds to 10 minutes. A vibration sensing unit may be included to detect vibration signals from the vehicle compartment and compare and update the sensing signals in the vehicle server 30.

In addition, the passenger car module 20 is provided with a decibel sensor on the induction drive unit of the blower 10 and the compartment car body, and uses the decibel sensor to detect the induction drive unit and the induction drive unit at intervals of at least 10 seconds to 10 minutes. A noise sensing unit that detects noise signals from the vehicle body and compares and updates the sensing signals to the vehicle server 30 may be included.

Also, the display unit 60. A vehicle display unit 61 that assigns and outputs the number and name of the railroad vehicle; A cooling display unit (62) that assigns and outputs the numbers and names of the blower (10), cooling fan (11), and fan driving unit provided in each compartment using the sensing signal transmitted from the communication unit (40) to the vehicle display unit (61). ) may be configured to include.

In addition, the ground server 50 can be configured to automatically place the train and accessory numbers of the abnormal sensing signal at the top of the train list of the display unit 60 according to the comparison result of the analysis unit 51.

In addition, the ground server 50 further forms a failure prediction section in a section that is at least 5 to 10% above or below the average failure value input to the storage device, and determines whether or not there is an abnormality according to the comparison result of the analysis unit 51. It can be configured to distinguish and display failure predictions.

According to the present invention, a number or name is assigned to the blower device of a railroad car and each compartment, and real-time monitoring of the operating status of the blower device and cooling fan is possible through real-time communication with the ground server. Driving safety can be improved.

In addition, the vibration and noise of multiple blowers installed in each compartment are collected from the passenger car module along with the body noise of each compartment, and are collected through the vehicle server of the configured railway vehicle and output on the vehicle control screen or through the ground server and It is configured to communicate, so even if each compartment is replaced and connected, the operation status of the cooling fan in each compartment can be checked through the vehicle server, and in case of malfunction, the location can be tracked using the linked number, enabling rapid maintenance and preventing vehicle accidents. You can.

In addition, the operation status of the blower and cooling fan is configured to determine failure and predict the time of failure using vibration and noise data, allowing for failure and prediction diagnosis through more accurate measurement data, preventing damage and failure of operating parts. It also has the effect of improving product competitiveness by preventing and enabling planned maintenance of railway vehicles.

Figure 1 is a schematic diagram of the present inventor's cooling fan failure diagnosis prediction system for railway vehicles.
Figure 2 is a schematic diagram of a knitting compartment of the present invention.
Figure 3 is an overall block diagram of the present inventor's cooling fan failure diagnosis prediction system for railway vehicles.
Figure 4 is a flowchart of the present inventor's cooling fan failure diagnosis prediction system for railway vehicles.
Figure 5 is a flow chart showing the signal flow of the ground server, which is a configuration of the present invention.

The inventor's cooling fan failure diagnosis and prediction system for railway vehicles collects data on the position information of the blower and cooling fan and status information such as vibration and noise for each compartment of the train, and based on the data, the blower and cooling fan It was invented to determine whether a cooling fan is abnormal and to identify and warn of the possibility of operation of a railway vehicle.

Hereinafter, the features of the cooling fan failure diagnosis and prediction system for railway vehicles according to the present invention will be described in detail with reference to the attached drawings.

Since the present invention can be subject to various changes and can have various forms, embodiments will be described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

First, the cooling fan failure diagnosis and prediction system for railway vehicles to which the present invention is applied provides information on the plurality of blowers 10 installed in each compartment of the railway vehicle in real time to the vehicle server 30, as shown in FIGS. 1 to 5. ) are collected and output on the vehicle control screen or transmitted to the ground server 50, and the ground server 50 compares the sensing signal with the average signal to determine whether it is normal or malfunctioned and warns of failure prediction, thereby improving the maintenance efficiency of the railway vehicle. It is a system for improvement.

For this purpose, a traction motor, main voltage generator, and main exchange device are installed in each compartment of the railway vehicle to supply electricity to the propulsion system and air conditioning system. A plurality of blowers 10 are installed to forcibly exhaust heat generated from auxiliary power devices, etc., and noise and vibration are measured on the power supply stage or induction drive unit, which are components of the blowers 10, and on the car body of the compartment. Each sensor is installed to measure and collect sensing signals from the carriage module 20 and provide them to the vehicle server 30.

Here, the plurality of sensing units installed in the configuration compartment directly provide the sensing signal measured by one blower device 10 to the passenger car module, or provide the sensing signal measured by one blower device 10 to the passenger car module 20 or the plurality of sensing units installed in the passenger car module 20. Merging the measured sensing signals and then providing them to the passenger car module 20 may also be included in the present invention.

The passenger car module 20 can be divided into a vibration sensing unit that measures the vibration of the car body of the floating transmission unit and the compartment, and a noise sensing unit that measures noise, and the sensing unit continuously measures at intervals of at least 10 seconds to 10 minutes. The sensing signal is configured to be compared and updated in the vehicle server 30.

The vibration sensing unit is included in the passenger module 20 and is provided with a vibration sensor in the induction transmission unit of the blower 10 and the compartment car body, respectively, and the induction detected by the vibration sensor is at intervals of at least 10 seconds to 10 minutes. By comparing the vibration signals of the transmission unit and the vehicle body in the vehicle server 30 or the ground server 50, changes in vibration due to eccentricity of the blower, partial damage or inflow of foreign substances, damage to bearings, etc. are detected during normal operation of the railway vehicle. It is configured to prevent errors caused by vibration signals.

In addition, the noise sensing unit is included in the passenger car module 20, and is provided with a decibel sensor on the induction drive unit of the blower 10 and the compartment car body, and the noise detected by the vibration sensor at intervals of at least 10 seconds to 10 minutes is provided. By comparing the noise signals of the induction transmission unit and the vehicle body in the vehicle server 30 or the ground server 50, changes in cooling fan noise due to eccentricity of the blower, partial damage or foreign matter inflow, bearing damage, etc. are detected and the railway vehicle It is configured to prevent errors caused by noise signals that occur during normal operation.

In addition, the sensing signals collected through the passenger car modules 20 are collected by the vehicle server 30, and the sensing signals of each passenger car module 20 are transmitted to the ground server 50 through wireless communication. The vehicle server (30) is preferably installed in a compartment equipped with an engineer and communication device in a railway vehicle, and is configured to output the sensing signal of the passenger car module on the vehicle control screen so that the engineer can immediately check it.

The communication unit 40 is connected to a network to transmit the sensing signal collected by the vehicle server 30 to the ground server 50 or receive information from the ground server 50 to the vehicle server 30. The above configuration is It refers to a connection structure that allows information exchange with a ground server 50 using a network. These networks include the Internet, LAN (Local Area Network), Wireless LAN (Wireless Local Area Network), and WAN (Wide Area Network). ), PAN (Personal Area Network), NFC (Near Field Communication), 3G, 4G, 5G, LTE, Wi-Fi, etc., but are not limited to these.

The ground server 50 compares the sensing signal transmitted from the communication unit 40 with the average failure value for the components of the blower input to the storage device, and the analysis unit 51 performs comparison. If the analyzed sensing signal is above or below the allowable value, a warning unit 52 outputs a list of accessories for the abnormal sensing signal as a display unit 60 and a notification sound, and transmits the list of accessories to the railway vehicle through the communication unit 40. It may be configured to include a management unit 53 that transmits abnormal contents of the warning unit 52 to a mobile device that has acquired administrator authority.

The analysis unit 51 of the ground server 50 compares the average failure value input to the storage device with the current, temperature, and rotation speed measured from the sensing signal transmitted from the vehicle server 30, and provides warning and warning information when an abnormality occurs. It is displayed on the display unit 60, and the comparison order and average failure value can be set differently depending on the needs of the user and administrator.

Here, the ground server 50 further forms a failure prediction section in a section that is at least 5 to 10% above or below the average failure value input to the storage device, and operates the blower device according to the comparison result of the analysis unit 51. It is configured to distinguish abnormality and failure prediction for each component of (10) and display them on the display unit (60).

Therefore, the ground server 50 diagnoses the entire abnormality and failure prediction of the blower devices 10 provided in the railroad car and train compartment and displays them on the display unit 60, making it possible to easily check the maintenance status of the railroad car. there is.

The display unit 60 is. A vehicle display unit 61 that assigns and outputs the number and name of the railway vehicle, and a blower 10 and a cooling fan provided in each compartment using a sensing signal transmitted from the communication unit 40 to the vehicle display unit 61 11) and a cooling display unit 62 that assigns and outputs numbers and names for each component such as the induction drive unit.

Here, according to the comparison result through the analysis unit 51 of the ground server 50, the number of the railway car and accessory for which the abnormal sensing signal was measured is automatically placed at the top of the train list of the display unit 60, so that the manager can Allows you to respond to situations more quickly.

As described above, an example in which the cooling fan failure diagnosis and prediction system for railway vehicles according to the present invention is applied, the ground server 50 designates trains for each railway vehicle operating or waiting in the railway network, and displays the train list in the display unit 60. ), and the train list briefly indicates whether there is an abnormal signal for the train's blower device, allowing the manager to easily monitor the operating status of the railroad vehicle.

Here, the storage device of the ground server 50 stores the average value at which a failure occurs by accumulating operating data of the blower device and operating data according to changes in the surrounding environment, and the sensing signal measured by the passenger car module 20 and analysis unit 51 perform comparative analysis to predict the current state, presence of a failure, and the time of failure.

In order to analyze the sensing signal, the sensing signal of the passenger car module that measures the vibration and noise of the moving transmission unit and the car body at least every 10 seconds is collected from the vehicle server 30, and the sensing signal is displayed on the display unit of the locomotive. In addition, it is transmitted to the ground server 50 using the communication unit 40.

The ground server 50 displays a train list on the vehicle display unit 61 of the display unit 60, automatically places the list of trains in which an abnormality in the blower has occurred at the top, and sends a warning message in the warning unit 52. In addition to outputting a warning sound, an alert is sent to the manager's mobile communication device so that the manager can quickly check it.

In addition, the vehicle display unit 61 of the display unit 60 displays a list of the failure prediction blower devices obtained from the management unit 53 of the ground server 50 by dividing them by time, period, etc., and displays the list of the corresponding railway vehicles. The number and list of blowing devices provided in each compartment are also displayed, and the presence or absence of a failure and failure prediction display are displayed.

Here, the list of the above-mentioned configuration columns is expanded and the numbers and locations of the relevant blowers and components are output, allowing quick inspection of parts during the operation and maintenance of railway vehicles, and upon completion of maintenance and inspection. It is displayed as normal operation.

As described above, the above-described embodiments describe the most preferred examples of the present invention, but are not limited to the above embodiments, and it is clear to those skilled in the art that various modifications are possible without departing from the technical spirit of the present invention. .

10. Blower 11. Cooling fan
20. Passenger car module 30. Vehicle server
40. Communications Department 50. Ground Server
51. Analysis Department 52. Warning Department
53. Management Department 60. Display Department
61. Vehicle display section 62. Cooling display section

Claims (7)

A passenger car module (20) that measures and collects sensing signals from a plurality of blowers (10), a cooling fan (11), and sensors installed in the fan driving unit, respectively, provided in each compartment of the railway vehicle;
a vehicle server (30) that collects the sensing signals collected from the passenger car module (20) and outputs them on a vehicle control screen;
a communication unit 40 that transmits the sensing signal collected by the vehicle server 30 to the ground server 50 or receives the transmission from the ground server 50 to the vehicle server 30;
Including a ground server 50 that diagnoses abnormalities and failure predictions of the blower 10 by comparing the sensing signal transmitted from the communication unit 40 with the reference value input to the storage device and displays it on the display unit 60. It is composed,
In the carriage module 20,
A vibration sensor is provided on the induction transmission unit of the blower 10 and the vehicle body of the configuration compartment, and the vibration sensor is used to detect vibration signals from the induction transmission unit and the configuration compartment vehicle at intervals of at least 10 seconds to 10 minutes to the vehicle server. (30) includes a vibration sensing unit that compares and updates the sensing signal,
In the carriage module 20,
A decibel sensor is provided on the induction unit and the compartment car body of the blower 10, and the decibel sensor is used to detect noise signals from the induction unit and the compartment car body at intervals of at least 10 seconds to 10 minutes to detect the noise signal of the induction unit and the compartment car body. (30) includes a noise sensing unit that compares and updates the sensing signal,
In the ground server 50,
an analysis unit 51 that compares the sensing signal received from the communication unit 40 with the average failure value input to the storage device;
If the sensing signal compared and analyzed by the analysis unit 51 is above or below the allowable value, a list of accessories for the abnormal sensing signal is output to the display unit and a notification sound, and the list of accessories is transmitted to the railway vehicle through the communication unit 40. a warning unit 52;
It is configured to include a management unit 53 that transmits abnormal contents of the warning unit 52 to a mobile device that has acquired administrator authority,
The ground server 50,
A failure prediction section is further formed in a section that is at least 5 to 10% above or below the average failure value input to the storage device, and is configured to display the abnormality and failure prediction separately according to the comparison result of the analysis unit 51,
In the storage device of the ground server 50,
The operating data of the blower and operating data according to changes in the surrounding environment are accumulated to store the average value at which a failure occurs, and the sensing signal measured by the passenger car module 20 is compared and analyzed by the analysis unit 51 to check the current status and whether there is a failure. and a cooling fan failure diagnosis prediction system for railway vehicles, characterized by predicting the time of failure.

delete delete delete According to clause 1,
The display unit 60 is.
a vehicle display unit 61 that assigns and outputs the number and name of the railroad vehicle; A cooling display unit (62) that assigns and outputs the numbers and names of the blower (10), cooling fan (11), and fan driving unit provided in each compartment using the sensing signal transmitted from the communication unit (40) to the vehicle display unit (61). ) A cooling fan failure diagnosis prediction system for railway vehicles, characterized in that it includes.

According to clause 1,
The ground server 50,
A cooling fan failure diagnosis prediction system for railway vehicles, characterized in that the railway vehicle and accessory numbers of abnormal sensing signals are automatically placed at the top of the train list of the display unit (60) according to the comparison results of the analysis unit (51).

delete

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