KR20230165573A - System and method for controlling for electric actuator - Google Patents

Abstract

Based on the user terminal, an electric actuator that is installed in the piping of multiple areas and opens or blocks the valve, and the sensing information received from the electric actuator, it is determined whether foreign matter is jammed, and if it is determined that foreign matter is jammed, the user terminal is notified. An electric actuator control system including a server that transmits an abnormality notification message is provided.

Description

Electric actuator control system and method {SYSTEM AND METHOD FOR CONTROLLING FOR ELECTRIC ACTUATOR}

The present invention relates to an electric actuator control system and method, and particularly to a data-linked electric actuator control system and method.

Electric actuators are key products that can control the operation of industrial facilities.

Conventionally, in most actuators, the operation of the actuator is stopped during the operation of opening and closing the valve due to foreign substances being caught or the position of the disc seat and the valve not matching, causing the actuator to not close completely. At this time, the manager had to go to the site directly to find the cause and take action or repair it, so even in the case of a simple cause, the actuator operation was stopped until the action was completed, which made it difficult to operate the industrial facility smoothly.

In the past, there was no technology to provide real-time status information of all actuators, making it difficult to respond in real time when an abnormal situation occurs.

In the case of actuators installed in the Middle East, such as Dubai, due to environmental characteristics, operation stoppages frequently occur due to simple causes such as foreign substances getting caught or sheets getting caught. In the case of actuators installed in the Middle East, there is a problem in that human and material resources are wasted because a person must go to the site and manually repeat the opening and closing operation to solve the problem.

Accordingly, technology is required to determine whether an abnormal situation has occurred based on sensing information received in real time from the actuator using a wired or wireless network, and to prevent unnecessary field dispatch and increase user convenience through the actuator's own response.

The technical problem to be achieved by the present invention is to develop an electric actuator that can determine whether an abnormal situation has occurred based on sensing information received from an actuator using a wired or wireless network, prevent unnecessary field dispatch and increase user convenience through the actuator's own response. To provide a control system and method.

According to one embodiment, an electric actuator control system is provided. The electric actuator control system is installed on a user terminal and pipes in a plurality of areas, and based on electric actuators that open or block valves and sensing information received from the electric actuators, it determines whether foreign matter is jammed and detects whether foreign matter is jammed. If it is determined, it includes a server that transmits an abnormality notification message to the user terminal.

The electric actuator includes an electric part, and the server determines an abnormal situation when the torque of the electric part is higher than a preset reference torque value based on sensing information received from the electric actuator, and notifies the user terminal of the abnormality. You can send a message.

When the server receives a control command from the user terminal, it transmits an operation command to the electric actuator. When the electric actuator receives an operation command from the server, it repeatedly performs the operation of opening and closing the valve to remove foreign substances. can do.

If the sensed torque is less than a preset reference torque value, the electric actuator may determine that foreign matter has been removed, stop the operation of opening and closing the valve, and transmit an operation interruption notification message to the server.

When the server receives an operation interruption notification message from the electric actuator, it may transmit a foreign matter removal completion message to the user terminal.

If the sensed torque is greater than a preset reference torque value, the electric actuator may determine that the foreign material has not been removed, stop the operation of opening and closing the valve, and transmit a foreign material removal failure notification message to the server.

When the server receives a foreign matter removal failure notification message from the electric actuator, it may transmit a warning message to the user terminal.

According to one embodiment, a control method of an electric actuator control system is provided. The control method of the electric actuator control system includes the steps of determining whether a foreign object is jammed based on sensing information received from the electric actuator by the server; if it is determined that the foreign object is jammed, the server transmits an abnormality notification message to the user terminal; When the server receives a control command from the user terminal, transmitting an operation command to the electric actuator, and when the electric actuator receives an operation command from the server, repeatedly performing the operation of opening and closing the valve to remove foreign substances. It includes steps to:

The electric actuator includes an electric part, and the step of determining whether the foreign matter is caught is an abnormal situation when the torque of the electric part is higher than a preset reference torque value based on the sensing information that the server receives from the electric actuator. You can judge.

After the step of removing foreign substances by repeatedly performing the operation of opening and closing the valve,

If the sensed torque is less than the preset reference torque value, the electric actuator determines that the foreign matter has been removed, stops the operation of opening and closing the valve, and transmits an operation interruption notification message to the server. .

After the step of transmitting an operation interruption notification message to the server, when the server receives an operation interruption notification message from the electric actuator, the step of transmitting a foreign matter removal completion message to the user terminal may be further included.

Using a wired or wireless network, it is possible to determine whether an abnormal situation has occurred based on the sensing information received from the actuator, and through the actuator's own response, unnecessary field dispatch can be prevented and user convenience can be increased.

By directly removing foreign substances through an electric actuator, it is possible to prevent waste of human and material resources.

If the foreign matter is not removed despite the foreign matter removal operation of the electric actuator, a warning message is sent to the user terminal, thereby preventing economic loss due to blockage of fluid flow.

1 and 2 are block diagrams of an electric actuator control system according to one embodiment.
Figure 3 is a block diagram of an electric actuator according to one embodiment.
Figure 4 is a flowchart of an electric actuator control method according to one embodiment.
Figure 5 is a block diagram of a server of an electric actuator control system according to one embodiment.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part “includes” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary.

The terms used in the embodiments of the present invention are general terms that are currently widely used as much as possible while considering the function in the present invention, but this may vary depending on the intention or precedent of a person working in the art, the emergence of new technology, etc. . In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the relevant embodiments. Therefore, the terms used in the present embodiments should not be defined simply as the names of the terms, but should be defined based on the meaning of the term and the overall content of the present embodiments.

In embodiments of the present invention, terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

Additionally, in embodiments of the present invention, singular expressions include plural expressions unless the context clearly dictates otherwise.

In addition, in the embodiments of the present invention, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but It should be understood that it does not exclude in advance the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof.

Additionally, in an embodiment of the present invention, a 'module' or 'unit' performs at least one function or operation and may be implemented as hardware or software, or as a combination of hardware and software. Additionally, a plurality of 'modules' or a plurality of 'units' may be integrated into at least one module and implemented with at least one processor, except for 'modules' or 'units' that need to be implemented with specific hardware.

1 and 2 are block diagrams of an electric actuator control system according to one embodiment. Figure 3 is a block diagram of an electric actuator according to one embodiment.

Referring to FIGS. 1 and 2 , an electric actuator control system according to one embodiment includes a user terminal 100, an electric actuator 200, and a server 300.

As an example, the user terminal 100 may be connected to the server 300 through an app or the web, and may receive sensing information (motor torque information, valve opening rate information, temperature information, humidity) received from the server 300. information, battery charge remaining information), and whether an abnormal situation occurs (whether foreign matter is caught in the electric actuator 200, whether the temperature is abnormal, whether the humidity is abnormal, and whether the remaining battery charge is abnormal) can be displayed on the screen. Through this, the manager can check the real-time status of the electric actuator 200 without visiting the site.

In one embodiment, the user terminal 100 is equipped with a memory means, such as a mobile communication terminal, a desktop computer, a laptop computer, a workstation, a palmtop computer, a personal digital assistant (PDA), a web pad, etc. It may be a digital device equipped with a microprocessor and equipped with computing power.

As an example, the electric actuator 200 is installed in the pipes of a plurality of areas (eg, desalination facilities) and can open or block a valve through rotation of a motor.

The plurality of electric actuators 200 may form a mesh network.

Referring to FIG. 3, each of the plurality of electric actuators 200 is an embodiment, and includes an electric drive unit 210, a sensing unit 220, an opening rate calculation unit 230, a communication unit 240, a control unit 250, It may include a display unit 260.

As an example, the electric motor 210 may be a motor and may open or block the valve through forward or reverse rotation.

As an example, the electric motor 210 may open the valve when rotating in a forward direction (when rotating clockwise) and block the valve when rotating in a reverse direction (when rotating counterclockwise).

The sensing unit 220 is one embodiment, and includes a torque sensor that measures the torque of the electric unit 210, a temperature sensor that measures the internal temperature of the electric actuator 200, a humidity sensor that measures the internal humidity, and a remaining charge level of the battery. It may include a battery sensor that measures.

As an example, the torque sensor may be a strain gauge.

As an example, the opening rate calculation unit 230 can calculate the valve opening rate based on the result of comparing the torque value of the electric drive unit 210 measured through the sensing unit 220 and pre-stored map data. there is.

As an example, the communication unit 240 may transmit sensing information to the server 300 and receive operation commands from the server 300 using a wireless network.

As an example, the communication unit 240 may include multiple fieldbus modules (eg, Wi-Fi, Bluetooth, Industrial Fieldbus, etc.). By simplifying the structure of the field layer and control layer through multiple fieldbus modules, convenience of installation, operation and maintenance is secured, and protocols required by demand companies can be applied in various fields. It is possible immediately.

As an example, the communication unit 240 may include a communication module that transmits and receives data to and from the user terminal 100 using a wired or wireless network.

As an example, the communication unit 240 may receive image data from a photographing device installed inside a pipe. As an example, the image data may include image data showing that a valve is opened or blocked.

As an example, when the control unit 250 receives a foreign matter removal operation command from the server 300, the control unit 250 may control the operation of the electric drive unit 210 to repeatedly perform the operation of opening and closing the valve.

As an example, the display unit 260 may display communication status and sensing information (motor torque information, valve opening rate information, temperature information, humidity information, and remaining battery charge information).

As an example, the server 300 determines whether a foreign substance is jammed based on sensing information received from a plurality of electric actuators 200, and if it is determined that a foreign substance is jammed, sends an abnormality notification message to the user terminal 100. You can. As an example, the abnormality notification message may include the serial number and location information of the electric actuator 200 in which a foreign substance is caught.

As an example, the server 300 determines an abnormal situation (foreign matter jammed) when the torque of the electric unit 210 is higher than a preset reference torque value based on the sensing information received from the electric actuator 200, and responds to the user. An abnormality notification message may be transmitted to the terminal 100. By removing foreign substances through the electric actuator 200, it is possible to prevent waste of human and material resources.

As an example, when the server 300 receives a foreign matter removal control command from the user terminal 100, it may transmit an operation command to the electric actuator 200.

When the electric actuator 200 receives an operation command from the server 300, it can remove foreign substances by repeatedly performing the operation of opening and closing the valve.

Through this, abnormal situations of the electric actuator 200 can be monitored in real time, and quick response is possible when an abnormal situation occurs.

The electric actuator 200 is one embodiment, and if the torque sensed during the foreign matter removal operation is less than a preset reference torque value, it determines that the foreign matter has been removed, stops the operation of opening and closing the valve, and sends a signal to the server 300. An operation interruption notification message can be sent.

As an example, when the server 300 receives an operation interruption notification message from the electric actuator 200, it may transmit a foreign matter removal completion message to the user terminal 100.

The electric actuator 200 is one embodiment, and when the torque sensed during the foreign matter removal operation is greater than the preset reference torque value, it determines that the foreign matter has not been removed, stops the operation of opening and closing the valve, and sends a signal to the server 300. A foreign matter removal failure notification message can be sent.

As an example, the server 300 may transmit a warning message to the user terminal 100 when receiving a foreign matter removal failure notification message from the electric actuator 200.

If the foreign matter is not removed despite the foreign matter removal operation of the electric actuator 200, a warning message is sent to the user terminal 100, thereby preventing economic loss due to blockage of fluid flow.

As an example, the server 300 determines an abnormal situation when the internal temperature is higher than a preset reference temperature based on the sensing information (temperature information) received from the electric actuator 200, and reports the abnormality to the user terminal 100. A notification message can be sent.

As an example, the server 300 determines an abnormal situation when the internal humidity is higher than a preset reference humidity based on the sensing information (humidity information) received from the electric actuator 200, and reports the abnormality to the user terminal 100. A notification message can be sent.

As an example, the server 300 determines an abnormal situation when the remaining charge of the battery is lower than a preset standard remaining amount based on the sensing information received from the electric actuator 200, and notifies the user terminal 100 of the abnormality. You can send a message.

As an example, the server 300 can determine whether the valve is in an abnormal situation using a pre-stored artificial intelligence algorithm that uses image data received from the electric actuator 200 as an input variable, and if it is determined that the abnormal situation is An abnormality notification message may be transmitted to the user terminal 100.

As an example, the server 300, based on the sensing information received from the electric actuator 200, if the torque of the electric unit 210 is higher than a preset reference torque value, the image data received from the electric actuator 200 Using a pre-stored artificial intelligence algorithm with as an input variable, it is possible to determine whether the valve is in an abnormal situation, and if it is determined to be an abnormal situation, an abnormality notification message can be transmitted to the user terminal 100.

As an example, the server 300 may process data using edge computing.

Figure 4 is a flowchart of an electric actuator control method according to one embodiment.

The electric actuator control method of the electric actuator control system according to one embodiment includes the step of determining whether a foreign substance is jammed based on the sensing information that the server 300 receives from the electric actuator 200 (S100). If it is determined that a foreign substance is jammed, , the server 300 transmits an abnormality notification message to the user terminal 100 (S200). When the server 300 receives a control command from the user terminal 100, it transmits an operation command to the electric actuator 200. It may include a step (S300) of removing foreign substances by repeatedly performing an operation of opening and closing the valve when the electric actuator 200 receives an operation command from the server 300 (S400).

In the step (S100) of determining whether foreign matter is caught, the server 300 determines an abnormal situation when the torque of the electric unit 210 is higher than a preset reference torque value based on the sensing information received from the electric actuator 200. You can.

After the step of removing foreign substances by repeatedly opening and closing the valve (S400), if the sensed torque is less than a preset reference torque value, the electric actuator 200 determines that the foreign substances have been removed and opens and closes the valve. It may further include a step (S500) of stopping and transmitting an operation interruption notification message to the server 300.

Figure 5 is a block diagram of a server of an electric actuator control system according to one embodiment.

Referring to FIG. 5, the server of the electric actuator control system according to one embodiment may be implemented as a computer system, for example, a computer-readable medium. The computer system 500 includes at least one of a processor 510, a memory 530, a user interface input device 560, a user interface output device 570, and a storage device 580 that communicate through a bus 520. may include. Computer system 500 may also include a network interface 590 coupled to a network. The processor 510 may be a central processing unit (CPU) or a semiconductor device that executes instructions stored in the memory 530 or the storage device 580. Memory 530 and storage device 580 may include various types of volatile or non-volatile storage media. For example, the memory 530 may include read only memory (ROM) 531 and random access memory (RAM) 532. Embodiments of the present disclosure may be implemented as a computer-implemented method or as a non-transitory computer-readable medium storing computer-executable instructions. In one embodiment, when executed by a processor, computer readable instructions may perform a method according to at least one aspect of the present disclosure.

The management server according to one embodiment includes a processor 510 and a memory 530, and the processor 510 executes a program stored in the memory 530, based on sensing information received from the electric actuator 200. , determining whether a foreign substance is jammed, if it is determined that a foreign substance is jammed, sending an abnormality notification message to the user terminal 100, and receiving a control command from the user terminal 100, sending an operation command to the electric actuator 200. You can perform the sending step.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims are also possible. It falls within the scope of rights.

Those skilled in the art related to this embodiment will understand that the above-described base material can be implemented in a modified form without departing from the essential characteristics. Therefore, disclosure methods should be considered from an explanatory rather than a restrictive perspective. The scope of the present invention is indicated in the claims rather than the foregoing description, and all differences within the equivalent scope should be construed as being included in the present invention.

Claims (11)

user terminal,
An electric actuator that is installed in piping in multiple areas and opens or blocks the valve, and
A server that determines whether a foreign substance is jammed based on the sensing information received from the electric actuator and, if it is determined that a foreign substance is jammed, sends an abnormality notification message to the user terminal.
Electric actuator control system including. In paragraph 1:
The electric actuator includes an electric part,
The server is,
An electric actuator control system that determines an abnormal situation when the torque of the electric unit is higher than a preset reference torque value based on sensing information received from the electric actuator, and transmits an abnormality notification message to the user terminal. In paragraph 2,
The server is,
Upon receiving a control command from the user terminal, an operation command is transmitted to the electric actuator,
The electric actuator is,
An electric actuator control system that removes foreign substances by repeatedly opening and closing the valve upon receiving an operation command from the server. In paragraph 3,
The electric actuator is,
An electric actuator control system that determines that foreign substances have been removed, stops the operation of opening and closing the valve, and transmits an operation interruption notification message to the server when the sensed torque is less than the preset reference torque value. In paragraph 4,
The server is,
An electric actuator control system that transmits a foreign matter removal completion message to the user terminal when an operation interruption notification message is received from the electric actuator. In paragraph 5,
The electric actuator is,
An electric actuator control system that, when the sensed torque is greater than a preset reference torque value, determines that foreign matter has not been removed, stops the operation of opening and closing the valve, and transmits a foreign matter removal failure notification message to the server. In paragraph 6:
The server is,
An electric actuator control system that transmits a warning message to the user terminal when a foreign matter removal failure notification message is received from the electric actuator. As a control method for an electric actuator control system,
A step in which the server determines whether foreign matter is caught based on the sensing information received from the electric actuator,
If it is determined that a foreign substance is caught, the server transmits an abnormality notification message to the user terminal;
When the server receives a control command from the user terminal, transmitting an operation command to the electric actuator, and
When the electric actuator receives an operation command from the server, removing foreign substances by repeatedly performing an operation of opening and closing the valve.
Electric actuator control method including. In paragraph 8:
The electric actuator includes an electric part,
The step of determining whether the foreign matter is caught is,
An electric actuator control method in which the server determines an abnormal situation when the torque of the electric unit is higher than a preset reference torque value, based on sensing information received from the electric actuator. In paragraph 9:
After the step of removing foreign substances by repeatedly performing the operation of opening and closing the valve,
If the sensed torque is less than a preset reference torque value, the electric actuator determines that foreign matter has been removed, stops the operation of opening and closing the valve, and transmits an operation interruption notification message to the server. Actuator control method. In paragraph 10:
After sending an operation interruption notification message to the server,
When the server receives an operation interruption notification message from the electric actuator, transmitting a foreign matter removal completion message to the user terminal.