KR20220086960A - Air cleaner operating system for railway vehicle and operating method using the same - Google Patents

Abstract

In the air purifier operating system for railway vehicles and the air purifier operating method using the same, the air purifier operation system for railway vehicles is a system for operating an air purifier for railway vehicles in which each vehicle is equipped with a plurality of air purifiers, and a load signal acquisition unit , including a door opening/closing signal acquisition unit, a calculation unit, and an output unit. The load signal acquisition unit acquires load information corresponding to the load of a passenger in each vehicle. The door opening/closing signal acquisition unit acquires opening/closing information of the doors with respect to a plurality of doors provided in each vehicle. The calculation unit calculates the number of operations of the air purifiers for each vehicle based on the applied load information and the opening/closing information of the doors. The output unit outputs operation signals of the air purifiers based on the calculated number of operations.

Description

Air purifier operating system for railway vehicles and air purifier operating method using the same

The present invention relates to an air purifier operating system for railway vehicles and a method for operating an air purifier using the same, and more particularly, in a railway vehicle equipped with a plasma cluster type air purifier for railway vehicles, simultaneously considering passenger overdensity and external air inflow. It relates to an air purifier operating system for railway vehicles capable of performing optimal air purifier operation, and an air purifier operating method using the same.

As in Korean Patent Registration No. 10-2076852, an air purifier applied to a conventional railway vehicle generally purifies air by a filter method. In the case of such a filter-type air purifier, the air is purged by forcibly circulating the air through the filter, causing inconvenience to passengers due to air flow, and It has the disadvantage of high power consumption.

Meanwhile, recently, instead of the conventional filter type air purifier, an air purifier using the so-called 'plasma cluster' phenomenon has been commercialized. It is characterized in that the air cleaning performance intensity adjustment operation is performed through ON/OFF driving of multiple air purifiers.

However, until now, railway vehicles to which the plasma cluster type air purifier is applied have not been developed, and the technology for optimizing the operation when the plasma cluster type air purifier is applied to railway vehicles is still incomplete.

Republic of Korea Patent No. 10-2076852

Accordingly, the technical problem of the present invention was conceived in this regard, and the object of the present invention is to operate an optimal air purifier in consideration of passenger overdensity and external air inflow in a railway vehicle equipped with a plasma cluster type air purifier for railway vehicles. It is to provide an air purifier operating system for railway vehicles that can perform

Another object of the present invention is to provide an air purifier operating method using the air purifier operating system.

An air purifier operating system for a railway vehicle according to an embodiment for realizing the object of the present invention is a system for operating an air purifier for a railway vehicle equipped with a plurality of air purifiers in each vehicle, a load signal acquisition unit; It includes a door opening/closing signal acquisition unit, a calculation unit and an output unit. The load signal acquisition unit acquires load information corresponding to the load of a passenger in each vehicle. The door opening/closing signal acquisition unit acquires opening/closing information of the doors with respect to a plurality of doors provided in each vehicle. The calculation unit calculates the number of operations of the air purifiers for each vehicle based on the applied load information and the opening/closing information of the doors. The output unit outputs operation signals of the air purifiers based on the calculated number of operations.

In one embodiment, the load signal acquisition unit may acquire information on the load corresponding to the load of the passenger riding in the vehicle based on the pressure signal of the air spring of each vehicle.

In one embodiment, the load signal acquisition unit includes a potential pressure detection unit for detecting a pressure signal of an air spring located on the front bogie of each vehicle, a rear pressure detecting unit for detecting a pressure signal of an air spring located on the rear side of the vehicle of each vehicle, the air It may include a signal conversion unit for converting the pressure signal of the spring into an electrical signal, and a conversion unit for converting the converted electrical signal into a load signal corresponding to the load of each passenger on board each vehicle.

In an embodiment, the door opening/closing signal acquisition unit may acquire information on the number of open doors among the doors of each vehicle, the positions of the open doors, and the opening times of the opened doors.

In an embodiment, the calculating unit may calculate the number of operations of the air purifiers by giving a first weight to the response load information and a second weight to the opening/closing information of the doors.

In an embodiment, the load response information to which the first weight is assigned may be a converted value of a response load signal, and the opening/closing information of the doors to which the second weight is assigned may be an opening time of the door.

In an embodiment, the air purifiers are installed in the same number on both sides of each vehicle, and may be installed between doors installed in each vehicle.

In an embodiment, each of the air purifiers may be a plasma cluster type air purifier.

In an embodiment, the output unit may first output operation signals of the air purifiers on the opposite side where the opened doors are located, based on the opening/closing information of the doors.

In an embodiment, the output unit may output an operation signal to operate the relay contacts of the air purifiers.

In an embodiment, the output unit may output the intensity level of the fan as an operation signal when the air purifiers include a fan.

The method of operating an air purifier for railroad vehicles according to an embodiment for realizing another object of the present invention is a method of operating an air cleaner for railroad vehicles in which a plurality of air cleaners are provided in each vehicle, and Acquiring load response information according to a load, acquiring information on opening/closing of doors for a plurality of doors provided in each vehicle, based on the load information and opening/closing information of the doors, for each vehicle Calculating the number of operations of the air purifiers, and outputting operation signals of the air purifiers based on the calculated number of operations.

In one embodiment, the obtaining of the load information includes: detecting a pressure signal of an air spring located in the front bogie of each vehicle; detecting a pressure signal of an air spring located in the rear bogie of each vehicle; It may include converting the pressure signal of the air spring into an electric signal, and converting the converted electric signal into a load signal corresponding to the load of each passenger in each vehicle.

In one embodiment, in the step of calculating the number of operation of the air purifiers, a first weight is given to the response load information and a second weight is given to the opening/closing information of the doors to calculate the number of operations of the air purifiers can do.

According to the embodiments of the present invention, it is possible to provide an optimal operating system of the air purifiers even for a railway vehicle equipped with a plasma cluster type air purifier rather than a conventional filter type air purifier.

In particular, in the case of the plasma cluster type air purifier, the intensity of the indoor air cleaning performance can be adjusted only by ON/OFF control of a plurality of air purifiers without applying a fan. By deriving the number of operations of the purifiers, it is possible to determine the optimal operation of the air purifier.

In this case, in determining the operation number of the air purifiers, since the load of the passenger of the corresponding vehicle and the opening/closing information of the door of the corresponding vehicle are utilized, it is possible to perform optimal air cleaning by indirectly grasping the air condition.

In particular, information on the passenger's load is obtained based on the pressure signal of the air spring, and the door opening/closing information includes information on the number of doors opened and closed, the positions of the doors that are opened and closed, and information on the opening and closing times of the doors. It is possible to perform the optimal air cleaning function by considering information such as the number of passengers, ventilation according to opening and closing of doors, or inflow of outside air.

In addition, by assigning different weights to passenger load information and door opening/closing information, it is possible to effectively set and control factors affecting the air quality inside the vehicle, resulting in an optimal air cleaning function it is possible to perform

On the other hand, when the number of air purifiers required for operation in each vehicle is derived, the output signal causes the relay contact to operate, so that only the air purifier with the relay contact closed operates, thus raising the actual calculated result. The corresponding number of air purifiers can operate, so that controllability and optimum air purification are possible.

1 is a block diagram illustrating an air purifier operating system for railroad vehicles according to an embodiment of the present invention.
2 is a schematic diagram illustrating a railway vehicle to which the air purifier operating system of FIG. 1 is applied.
3A and 3B are graphs illustrating the number of operations of the air purifier according to the number of relay contact outputs and the fan operation intensity step as a signal output from the air purifier operating system of FIG. 1 .
4 is a flowchart illustrating an air purifier operating method using the air purifier operating system of FIG. 1 .

Since the present invention can have 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 the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements. Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms.

The above terms are used only for the purpose of distinguishing one component from another. The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In this application, terms such as "comprises" or "consisting of" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a block diagram illustrating an air purifier operating system for railroad vehicles according to an embodiment of the present invention. 2 is a schematic diagram illustrating a railway vehicle to which the air purifier operating system of FIG. 1 is applied. 3A and 3B are graphs illustrating the number of operations of the air purifier according to the number of relay contact outputs and the fan operation intensity stage as a signal output from the air purifier operating system of FIG. 1 . 4 is a flowchart illustrating an air purifier operating method using the air purifier operating system of FIG. 1 .

First, referring to FIG. 1 , the air purifier operating system 10 for a railroad vehicle according to this embodiment (hereinafter referred to as an operating system) includes a load signal acquisition unit 100, a door opening/closing signal acquisition unit 200, a calculation unit ( 300 ) and an output unit 400 . In addition, the load signal acquisition unit 100 includes a potential pressure detection unit 110 , a back pressure detection unit 120 , a signal conversion unit 130 , and a conversion unit 140 .

On the other hand, in this embodiment, the air purifier provided in the railway vehicle is a so-called plasma cluster type air purifier, and hydrogen ions and oxygen ions of plasma cluster ions are bonded to the surface of substances such as viruses in the air. It becomes a hydroxyl group (OH Radical), and it is driven in such a way that it removes contaminants by sterilizing viruses, etc. with the strong oxidizing power of the hydroxyl group.

In this plasma cluster type air purifier, a separate filter or fan may not be applied, and in order to increase the performance strength of the air purifier, instead of increasing the rotation speed of the fan, the number of operating air purifiers is increased. method is applied.

Accordingly, when the pollution degree of the vehicle interior space of the railway vehicle increases, the number of air purifiers operating inside the vehicle must be increased, and when the pollution level decreases, the number of operating air purifiers is reduced. will operate

In this way, in order to control the number of operations and perform the air cleaning function, the plasma cluster type air purifier 40, as shown in FIG. A plurality of them may be arranged to have regular intervals therein.

For example, as shown in FIG. 2, when a plurality of doors 30 are respectively installed on the right side 21 and the left side 22 of one vehicle 20 in a group consisting of two vehicles, It may be disposed between each door, and may also be installed at the front end of the first door and at the rear end of the last door.

Thus, for example, when three doors 30 are formed on the right side 21 or the left side 22 , so that a total of six doors are formed in one vehicle 20 , the air purifier 40 is A total of 8 may be provided, 4 on the right side 21 and 4 on the left side 22 .

Of course, the number of the doors illustrated in FIG. 2 and the number of air purifiers according thereto may be variously changed, but at least one air purifier needs to be disposed adjacent to one door.

Hereinafter, an air purifier operating system and operating method for railway vehicles including a method of appropriately controlling the number of such operated air purifiers will be described in detail.

Meanwhile, for convenience of explanation, the operating system 10 according to the present embodiment and a method of operating an air purifier for railway vehicles using the same (hereinafter referred to as an operating method) will be simultaneously described with reference to FIGS. 1 and 4 . .

First, in the operating method, the potential pressure detection unit 110 of the load signal acquisition unit 100 detects the pressure signal of the air spring located on the potential balance of each vehicle (step S10).

In the case of a railroad car, one front-end bogie is provided in front of one vehicle 20 , and one rear-end bogie is also provided in the rear of the vehicle 20 , so that a total of two bogies are installed. In addition, four pressure signals are detected from the air springs located on the bogies.

And, in the case of the air spring, the pressure varies according to the weight of the vehicle 20 , that is, the weight of passengers riding in the vehicle 20 . Accordingly, by detecting the pressure signal applied to the air springs, it is possible to obtain information on the weight of passengers in the corresponding vehicle.

Accordingly, in the present embodiment, the potential pressure detection unit 110 detects two pressure signals from the air springs of the potential balance.

In addition, the rear pressure detection unit 120 detects two pressure signals from the air springs of the rear bogie (step S10).

Thus, in one vehicle 20 , a total of four pressure signals can be detected (step S10 ), and the detected pressure signals are provided to the signal conversion unit 130 . Of course, if air springs are additionally installed in one vehicle in addition to the number of air springs described above, the number of air springs from which the pressure signal is detected increases, and pressure signals can be obtained from all air springs. .

Thereafter, the signal conversion unit 130 converts the pressure signal detected from the air springs into an electric signal (step S20).

That is, by converting the pressure signal detected from the air springs into an electrical signal, the digitization improves the speed and accuracy of signal conversion or signal operation, which will be described later.

Thereafter, the conversion unit 140 converts the converted electrical signal into a load signal according to the load of each passenger in each vehicle (step S30).

As described above, with respect to the four signals obtained from the air springs and converted into electrical signals, the conversion unit 140 derives an average value, and the load corresponding to the load of a passenger in the single vehicle signal can be generated.

Of course, even when the number of converting the pressure signal obtained by the air spring into an electrical signal is not four, the conversion unit 140 derives an average value and responds to the load of a passenger in one vehicle. signal can be generated.

In the generation of the load response signal of the conversion unit 140, load information that increases according to the passenger's boarding is calculated using load information in the vehicle in a state where no passenger is in the vehicle as basic information. Taking this into account, it is possible to generate a load response signal according to the load of the passenger on board.

As described above, through the load signal acquisition unit 100, information on the load corresponding to the load of a passenger in each vehicle is acquired.

On the other hand, apart from obtaining the load information through the load signal obtaining unit 100 , the door opening/closing signal obtaining unit 200 for a plurality of doors 30 provided in each vehicle, the so-called door The opening/closing information is obtained (step S40).

In this case, the opening/closing information of the doors includes information on the number of doors open for passengers to get on and off among the doors 30 provided in each vehicle, information on the positions of the open doors, and the open doors. Information on each opening time may be included.

In general, since the railroad vehicle enters one side of the platform, the positions of the open doors are changed according to the position of the platform. Therefore, it is necessary to sense the location information of these doors.

In addition, in general, all the doors located toward the platform are opened, but in the case of a breakdown or a special situation, some doors may not be opened. Accordingly, information on the number of such open doors should also be sensed.

The information on the direction and number of open doors is, after all, very important information because it affects the direction of air circulation in each vehicle or the degree of ventilation.

Furthermore, in general, as the number of passengers getting on and off the vehicle increases, the opening time of the open doors of the vehicle also increases. Therefore, it can be said that the opening time is highly correlated with the number of passengers getting on and off the vehicle, and accordingly, information on the opening time of the door must also be obtained.

In this embodiment, a method of determining the number of operation of the air purifier is applied based on the load response information of the corresponding vehicle and the information on the opening time of the door of the corresponding vehicle.

That is, the number of operations of the air purifier is calculated based on information on the opening times of the doors, among the information related to the opening and closing of the doors.

That is, in the calculating unit 300, the air cleaners installed in the vehicle based on the load information obtained by the load signal obtaining unit 100 and the door opening/closing information obtained by the door opening/closing signal obtaining unit 200 The number of air purifiers to be operated in (40) is calculated (step S50), and in particular, the calculation is performed based on the information on the opening time of the doors among the door opening/closing information.

For example, the calculator 300 may calculate the final number of operations by giving a first weight to the converted load signal and a second weight to the door opening time signal.

That is, if it is assumed that the converted load signal is 2V in the state defined as 1V=0.5, the first weight is set to 1, the door opening time signal is assumed to be 20 seconds, and the second weight is set to 0.2, the calculation unit The value of the final operation log calculated in (300) may be calculated by the following Equation (1).

식 (1)

Equation (1)

Thus, finally, a calculation that five air purifiers among the air purifiers installed in one vehicle should be operated may be performed.

On the other hand, in the operation unit 300, in the door opening and closing information, it is exemplified that the calculation is performed based on the information on the opening times of the doors, but among the door opening and closing information, in addition to the information about the new publications of the doors, open By assigning a predetermined weight to the information on the number and location of the completed doors, it is possible to perform an operation on the number of operations of the final air purifiers.

In this case, the applied weight may be preset through a separate simulation in consideration of the performance of the air purifier and the like.

As described above, when the value for the number of air purifiers to be finally operated in the vehicle is calculated by the calculating unit 300, the output unit 400 outputs operation signals of the selected air purifiers (step S60).

The output unit 400 may output an operation signal to preferentially operate the air purifiers located on opposite sides of the open doors based on the result of calculating the number of operation of the air purifiers to be operated.

That is, in FIG. 2 , if the doors on the right side 21 are opened, when the operation signals of the four air purifiers are output from the operation unit 300 , the output unit 400 outputs 4 located on the left side 22 . The operation signal may be output so that the air purifiers of the dogs are operated first.

Through this, the air purifiers located in the area where ventilation with the outside is not performed smoothly with the door closed, rather than the area where ventilation with the outside is performed according to the opening of the door, is operated to improve the air purification inside the vehicle. The effect can be further improved.

Furthermore, the operation signal output from the output unit 400 may be a relay contact operation signal for operating the relay contact. Thus, it is possible to operate only the air purifiers in which the relay contact is closed.

That is, as shown in FIG. 3A , even when the result calculated by the operation unit 300 is less than 1, the output unit 400 outputs a relay contact so that one air purifier operates, and the operation unit ( 300), even when the number of operations is greater than 1 and less than 2, the output unit 400 may output a relay contact so that the two air purifiers can operate.

On the other hand, in this embodiment, the operation of the plasma cluster type air purifiers that can adjust the air cleaning intensity only by on/off operation without applying a fan has been described, but a fan is applied, and the operation of the air purifier is Even when an air purifier of a type in which the operating intensity is determined is applied, the operating system and operating method in this embodiment can be applied.

However, the calculated value calculated by the operation unit 300 is not the number of operations of the air purifier, but the operation intensity value of the fan. Otherwise, it may be an output signal for the operation strength of the fan.

On the other hand, as shown in FIG. 3B , even when the output unit 400 outputs an output signal for the operating intensity of the fan, the output signal is generated so that the fan operates with an intensity of 1 for an operation value less than 1 The output signal can be output so that the fan operates with an intensity of 2 for an operation value greater than 1 and less than 2.

Thus, by operating the air purifier so that an amount of air cleaning greater than the amount of air cleaning required for the vehicle is performed, it is possible to maintain a more comfortable air condition of the vehicle.

According to the embodiments of the present invention, it is possible to provide an optimal operating system of the air purifiers even for a railway vehicle equipped with a plasma cluster type air purifier rather than a conventional filter type air purifier.

In particular, in the case of the plasma cluster type air purifier, since the fan can be omitted, the intensity of the indoor air cleaning performance can be adjusted only by controlling the ON/OFF driving of multiple air purifiers. By deriving the number of operations of the purifiers, it is possible to determine the optimal operation of the air purifier.

In this case, in determining the number of operation of the air purifiers, the load of the passenger of the corresponding vehicle and the opening/closing information of the door of the corresponding vehicle are utilized, so that the optimal air cleaning can be performed by indirectly grasping the air condition.

In particular, information on the passenger's load is obtained based on the pressure signal of the air spring, and the door opening/closing information includes information on the number of doors opened and closed, the positions of the doors that are opened and closed, and information on the opening and closing times of the doors. It is possible to perform optimal air cleaning by considering information such as the number of passengers, ventilation due to opening and closing of doors, or inflow of outside air.

In addition, by assigning different weights to the passenger load information and the door opening/closing information, it is possible to effectively set and control factors affecting the air quality inside the vehicle. it is possible to perform

On the other hand, when the number of air purifiers required for operation in each vehicle is derived, the output signal causes the relay contact to operate, so that only the air purifier with the relay contact closed operates, thus raising the actual calculated result. The number of air purifiers corresponding to the above can be operated, making it possible to purify the air with improved controllability and comfort.

Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can.

10: air purifier operating system
100: load signal acquisition unit 110: potential pressure detection unit
120: back pressure detection unit 130: signal conversion unit
140: conversion unit 200: door open/close signal acquisition unit
300: arithmetic unit 400: output unit

Claims (14)

In a railway vehicle equipped with a plurality of air purifiers in each vehicle,
a load signal acquisition unit that acquires load information according to the load of a passenger in each vehicle;
With respect to the plurality of doors provided in each vehicle, the door opening/closing signal acquisition unit for acquiring the opening/closing information of the doors;
a calculating unit for calculating the number of operations of the air purifiers for each vehicle based on the load information and the opening/closing information of the doors; and
An air purifier operating system for railway vehicles including an output unit for outputting operation signals of the air purifiers based on the calculated number of operations. According to claim 1, wherein the load signal acquisition unit,
Air cleaner operating system for railroad vehicles, characterized in that it acquires load information according to the load of the passenger riding in the vehicle based on the pressure signal of the air spring of each vehicle. According to claim 2, wherein the load signal acquisition unit,
a potential pressure detection unit for detecting a pressure signal of an air spring located on a potential balance of each vehicle;
a rear pressure detection unit for detecting a pressure signal of an air spring located on the rear bogie of each vehicle;
a signal converter converting the pressure signal of the air spring into an electric signal; and
and a conversion unit for converting the converted electrical signal into a load signal corresponding to the load of each passenger on board. The method of claim 1, wherein the door opening/closing signal acquisition unit,
An air purifier operating system for railroad vehicles, characterized in that it acquires information on the number of open doors among the doors of each vehicle, the positions of the open doors, and the opening times of the open doors. The method of claim 1, wherein the calculating unit,
An air purifier operating system for a railway vehicle, characterized in that by assigning a first weight to the load information and a second weight to the opening/closing information of the doors, calculating the number of operations of the air purifiers. 6. The method of claim 5,
The information on the load to which the first weight is assigned is a converted value of the load signal, and the information on the opening and closing of the doors to which the second weight is given is the opening time of the door. According to claim 1, wherein the air purifiers,
The air purifier operating system for railway vehicles, characterized in that the same number is installed on both sides of each vehicle, and is installed between the doors installed in each vehicle. The method of claim 7, wherein each of the air purifiers,
Air purifier operating system for railway vehicles, characterized in that it is a plasma cluster type air purifier. The method of claim 7, wherein the output unit,
An air purifier operating system for a railway vehicle, characterized in that based on the opening/closing information of the doors, operation signals of the air purifiers on the opposite side where the opened doors are located are first output. According to claim 1, wherein the output unit,
An air purifier operating system for railway vehicles, characterized in that outputting an operation signal to operate the relay contacts of the air purifiers. According to claim 1, wherein the output unit,
When the air purifiers include a fan, the air purifier operating system for a railway vehicle, characterized in that outputting the intensity level of the fan as an operation signal. In the method of operating an air purifier of a railroad car equipped with a plurality of air purifiers in each vehicle,
obtaining information on a load corresponding to a load of a passenger riding in each vehicle;
obtaining information on opening/closing of doors for a plurality of doors provided in each vehicle;
calculating the number of operations of the air purifiers for each vehicle based on the load information and the opening/closing information of the doors; and
and outputting operation signals of the air purifiers based on the calculated number of operations. The method of claim 12, wherein the obtaining of the load information comprises:
detecting a pressure signal of an air spring located on a potential balance of each vehicle;
detecting a pressure signal of an air spring located in the rear bogie of each vehicle;
converting the pressure signal of the air spring into an electrical signal; and
and converting the converted electrical signal into a load signal corresponding to the load of a passenger on each vehicle. The method of claim 12, wherein in the step of calculating the number of operations of the air purifiers,
A method of operating an air purifier for a railway vehicle, characterized in that by assigning a first weight to the applied load information and a second weight to the opening/closing information of the doors, calculating the number of operations of the air purifiers.

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