KR102175741B1 - System for Monitoring of Smart Painting - Google Patents

Abstract

In the smart painting equipment monitoring system according to an embodiment, the airless gun; Airless pump; And an airless gun and a device connected to the airless pump through a network, wherein the airless gun may display consumption information and residual use information of paint sprayed through the airless gun from the airless pump received from the device.

Description

Smart Painting Monitoring System {System for Monitoring of Smart Painting}

The present invention relates to a smart painting monitoring system. More specifically, it relates to a system that can easily display the painting status to a user.

In the process of manufacturing ships and ship modules, painting facilities are the core facilities of shipyards along with welding facilities. Painting equipment is divided into airless pump, paint transfer line, and airless gun. The paint contained in the container is delivered to the painter through an airless pump, and the painter performs painting inside and outside the ship through an airless gun.

Paint paints are sprayed by the painter, and the quality of the application depends on the skill level of the operator, and there is a cost burden in the case of an experienced painter. . Therefore, shipyards are demanding a system to improve coating quality and monitor the amount of paint used.

An object of the present invention is to provide a painter with a work environment capable of monitoring the amount of paint used and whether or not the airless pump is broken.

In addition, an object of the present invention is to provide a working environment that enables smoothly performing painting work even if you are not an experienced painting shooter.

In the smart painting equipment monitoring system according to an embodiment, the airless gun; Airless pump; And a device networked with an airless gun and an airless pump. Including, the airless gun may display consumption information and residual use information of paint sprayed through the airless gun from the airless pump received from the device.

In addition, the airless pump may include a vibration sensor, and may transmit vibration information obtained from the vibration sensor to the device.

In addition, the device may determine whether or not there is a failure in the airless pump, based on the vibration information received from the airless pump.

In addition, the device may determine whether or not there is a failure in the airless pump, using information on the number of blades of the airless pump and vibration information on the airless pump.

In addition, the device may calculate the amount of paint used by using tip size information of the airless gun, paint information, rated flow rate information, and hose information connected between the airless gun and the airless pump.

A method for monitoring a smart painting facility according to another embodiment includes the steps of storing information on an airless gun and an airless pump in a device; And displaying, by the airless gun, consumption information of paint sprayed through the airless gun and remaining use information.

In the case of the present invention, it is not a subjective sense of the painter, but there is an advantageous effect that the coating quality can be maintained by performing the coating even without a skilled person.

In the case of the present invention, there is an advantageous effect of improving the efficiency of operation, such as inventory control of paint and shortening of the process period.

1 is a view for conceptually explaining a smart painting monitoring system according to an embodiment.
2 is a block diagram conceptually showing the configuration of a wireless vibration sensor according to an embodiment.
3 is a diagram showing a data packet structure of vibration information according to an embodiment.
4 is a flowchart illustrating a failure diagnosis process of an airless pump according to an exemplary embodiment.
5 is a flowchart showing a process of calculating the amount of paint used in the airless pump according to an embodiment.
6 is a diagram for describing information output of an airless gun according to an exemplary embodiment.

Hereinafter, terms used in the specification will be briefly described, and embodiments will be described in detail.

Terms used in the present specification have selected general terms that are currently widely used as possible while considering their functions, but this may vary according to the intention or precedent of a technician working in the field, the emergence of new technologies, and the like. 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 corresponding description. Therefore, the terms used in the present specification should be defined based on the meaning of the term and the entire contents of the present specification, rather than a simple name of the term.

When a part of the specification is said to "include" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated. In addition, terms such as "... means", "... unit", and "module" described in the specification mean a unit that processes at least one function or operation, which is implemented in hardware or software, or It can be implemented by a combination of.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them. However, the embodiments may be implemented in various different forms and are not limited to the embodiments described herein. In the drawings, in order to clearly describe the solution, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

1 is a view for conceptually explaining a smart painting monitoring system according to an embodiment.

As shown in FIG. 1, the smart painting monitoring system includes an airless gun 100, an airless pump 200, a wireless vibration sensor 300, a gateway 400, and a server 500.

The airless gun 100 is a mechanism that directly sprays the paint onto the object to be applied when the paint is transmitted through the airless pump 200. Generally, a compressor and a spray gun are often used as a gun for spraying paint, but since using an airless gun is more advantageous in work efficiency than when using a spray gun, the present invention focuses on an airless gun. . However, for convenience of explanation, it should be noted that the description is made using an airless gun as an example, and the invention is not limited thereto.

The airless gun 100 may output various information so that a painting shooter using the airless gun 100 can visually recognize the painting situation. For example, the LED lamp of the airless gun 100 may output information about the state of the airless pump in blue, yellow, red, etc., and may also output the available time on a separate digital instrument panel. Information output from the airless gun 100 will be described later.

The airless pump 200 stores paint and carries the paint through the hose 150 connected to the airless gun 100 by operating the wing of the pump.

The wireless vibration sensor 300 is attached to the airless pump 200 and serves to sense the vibration of the airless pump 200. The wireless vibration sensor 300 according to the present disclosure has various technical features, and will be described in more detail in the following description.

The gateway 400 serves to transmit the vibration information acquired through the wireless vibration sensor 300 to the server 500. The gateway 400 can communicate even at a distance of 20 meters or more from the wireless vibration sensor, and can be connected to 1 to 5 wireless vibration sensors in one gateway. The gateway can also configure a wired LAN connection terminal as a device and perform short-range wireless communication. The gateway 400 also includes a power supply, and may be supplied by, for example, 12 volt DC power.

The server 500 may obtain vibration information of the airless pump 200 based on vibration information received from the wireless vibration sensor 300. The server 500 may diagnose a failure of the airless pump by comparing and analyzing information such as motor blades in the airless pump, and the user may monitor the current state.

The server 500 may accumulate and store the received or stored vibration information to perform failure prediction. The server 500 may compare and analyze the failure history information of the airless pump and the current vibration information to determine whether the current airless pump is in a normal state or whether there are signs of failure.

2 is a block diagram conceptually showing the configuration of a wireless vibration sensor according to an embodiment.

As shown in FIG. 2, the wireless vibration sensor 300 may include a sensing unit 310, a communication unit 320, a power supply unit 330, and a control unit 340.

The sensing unit 310 serves to measure the vibration of the airless pump. For example, vibration measurement range (±1 ~ 10g). It can be performed within measurement setting conditions such as vibration measurement function (RMS).

The communication unit 320 enables the wireless vibration sensor 300 to transmit vibration data to the server 500 through the gateway 400. As a method of wireless communication, various short-range wireless communication methods such as Wi-FI, Zigbee, or SDR (Software Defined Radio) may be used.

The power supply unit 330 serves to supply power so that the wireless vibration sensor 300 can sense for a long time. For example, vibration information can be measured during painting work time of more than 10 hours, and may be attached to the wireless vibration sensor 300 in the form of a battery.

In addition, the power supply unit may supply power using an energy harvester using vibration, a pneumatic generator using air, a wireless charging method using an eddy current, and the like.

The control unit 340 may be variously set so that the sensing unit 310, the communication unit 320, and the power supply unit 330 can be operated. The control unit 340 may remove the noise component from the impulse signal by using the trigger level of the vibration information measured by the sensing unit 310 (filtering), and may process it into digital information through A/D conversion.

The control unit 340 may also set the ID of the sensing unit so that the communication unit 320 can perform communication smoothly, and allow the vibration information to be transmitted through the antenna.

In addition, when it is determined that the communication performed by the communication unit 320 is interrupted, the controller 340 may store sensing information and transmit the sensing information together with the sensing information when communication is resumed.

The control unit 340 may determine how long the power supplied by the power supply unit 330 is maintained, that is, the remaining battery capacity, to determine an available time during which the vibration sensor can operate, and transmit it to the server 500 through the gateway 400. .

3 is a diagram showing a data packet structure of vibration information according to an embodiment.

The vibration information of the airless pump 200 transmitted from the wireless vibration sensor 300 to the server 500 through the gateway 400 may have a data packet structure as illustrated in FIG. 3.

The STX frame 301 may indicate a protocol start point of a corresponding vibration data packet.

The SID frame 302 may indicate identification information of the wireless vibration sensor 300.

The COUNT1 frame 303 may indicate information on the number of operations of the airless pump, and the COUNT2 frame 304 may also indicate information on the number of operations of the airless pump together with the COUNT1 frame 303.

The battery frame 305 may indicate the remaining battery capacity of the wireless vibration sensor.

The checksum frame 306 may be an indicator for checking the protocol accuracy of a data packet transmitted to the server.

The ETX frame 307 may indicate the protocol end point of the corresponding vibration data packet.

The description of the data packet structure of the vibration information is an example for convenience of description, and the data packet structure is not necessarily implemented as described above, and it is desirable to determine that it is possible to modify the data packet structure for accurate vibration information transmission and reception.

4 is a flowchart illustrating a failure diagnosis process of an airless pump according to an exemplary embodiment.

Vibration information of the airless pump measured by the wireless vibration sensor may be transmitted to the server through the gateway (S410). In this case, it is sufficient if the server is a device capable of receiving vibration information, and for example, a data logger may correspond to this.

The server may filter vibration information for the airless pump (S420). Filtering at this time is performed by measuring gear meshing frequency (GMF), RPM, bearing frequency, etc. through analysis of the airless pump machine in advance, filtering the bandpass, removing unnecessary frequency parts, and blocking noise. it means.

The server may determine whether the airless pump is broken by analyzing the filtered vibration information of the airless pump (S430). A failure can be determined based on a degree of difference from a criterion for determining failure by comparing the vibration information measured in advance for the airless pump.

The server may pre-store model information, structure information, and parts information about the airless pump. In the case of airless pumps distributed on the market, since there are many similar products, information on various products can be stored in advance, and information on supply and demand of parts can be included and stored.

In addition, the server may machine learn vibration information about the airless pump. This is because it is difficult to determine the current state of the airless pump with only initial vibration information, since the vibration magnitude of the airless pump may increase as time passes.

The server can calculate the overall amplitude of the airless pump. In a time waveform, after performing a frequency analysis using a Fast Fourier Transform (FFT) without expressing the sum of amplitudes, it can be expressed as a sum of frequency components on the spectrum. When calculating the sum of the frequency components, the method shown in Equation 1 below can be used.

The server can calculate the time trend for the amplitude of each frequency component. For the amplitude of each frequency component expressed through FFT analysis, a certain time period, such as every hour or every day, can be set, and the sum of power for each time period can be calculated. Time change (Trend) for the amplitude power value for each time period can be tracked by setting a predetermined time period such as weekly or monthly for the calculated amplitude power sum.

In addition, the server may store failure history information about the airless pump. When the airless pump has failed in the past, a history of some parts has failed and vibration information before and after the failure can be saved. The server can store not only failure history information of airless pumps located in the field, but also failure history information of airless pumps of the same type or related airless pumps. For example, if the A airless pump is located in the field, it is also possible to store failure history information of the B airless pump that shares parts a, b, and c.

The server may determine whether the airless pump is malfunctioning by comparing the gear meshing frequency (GMF) of the airless pump and whether there is an error within a preset range. For example, by comparing the calculated gear meshing frequency with the preset frequency as normal, it can be determined that there is no failure up to 10% error from the normal range, and caution mode up to 20% error from the normal range, 50% from the normal range. Up to the error, the risky mode, and the error beyond that, can be determined in the immediate action mode (failure state).

The server may determine the presence or absence of a failure, and if it is determined that it is normal or a failure, it may output the determined information (S440). The server can be connected to the web server via a wired or wireless network, and devices such as smartphones and tablet PCs can monitor whether the airless pump is malfunctioning through the web server.

5 is a flowchart showing a process of calculating the amount of paint used in the airless pump according to an embodiment.

Vibration information of the airless pump measured by the wireless vibration sensor may be transmitted to the server through the gateway (S510). In this case, it is sufficient if the server is a device capable of receiving vibration information, and for example, a data logger may correspond to this.

The server may filter vibration information for the airless pump (S520). Filtering at this time refers to the role of removing unnecessary frequency parts and blocking noise through bandpass filtering by pre-measurement of the number of blade frequencies through analysis of the airless pump machine.

The server may determine the amount of paint used for the airless pump by analyzing the filtered vibration information of the airless pump (S530). The amount of paint used for the airless pump can be determined in the future by considering the rated flow rate and the like by comparing the vibration information previously measured for the airless pump.

The server may pre-store model information, discharge pressure information, hose diameter, hose length, tip size information, etc. for the airless pump.

In addition, the server may receive operation information about the airless pump. For example, the painter enters the tip size information of the airless gun used in the painting process in the airless gun or airless pump, hose information such as length and diameter of the hose, injection pressure information and paint viscosity information, and the capacity of the airless pump. I can receive it.

The server may calculate an available time based on information such as an initial amount of paint in and out, a flow rate per unit time, and a discharge pressure. The server can transmit the calculated available time information to an airless pump or an airless gun so that the painter can recognize it at the site.

6 is a diagram for describing information output of an airless gun according to an exemplary embodiment.

The airless gun is a device that allows the painter to recognize the state of the paintwork most intuitively because the painter holds it and works. Therefore, through the information output from the airless gun, the painter can easily determine how to proceed with the current painting work.

The output information 600 of the airless gun may include paint use information 610, airless gun information 620, available time information 630, and failure diagnosis information 640 of the airless pump.

The paint usage information 610 may include information on paint sprayed through the airless gun. For example, information on the viscosity of the paint and color information of the paint may correspond to this. The airless gun may output such information on a display unit such as a touch screen, and in some cases, may simply output it according to a flashing method such as a three-color LED.

The airless gun information 620 may include information on the airless gun currently being used by the painter. The size of the tip attached to the current airless gun (eg, size 521 or 421) and current injection pressure information of the airless gun may correspond to this.

The available time information 630 may include information on remaining work time for using the airless pump and the airless gun in the future. As described above with reference to FIG. 5, the server may calculate the amount of paint usage information, and the like, and the airless gun may output the available time information. The available time information of the airless gun may be calculated based on the amount of remaining paint, the amount of power of the airless pump and the airless gun.

The fault diagnosis information 640 of the airless pump is information indicating whether there is a sign of a fault in the airless pump in operation. As described above with reference to FIG. 4, the failure may be predicted by comparing the vibration information of the airless pump in a normal state based on the vibration information of the airless pump. For example, in a normal state, the LED lamp of the airless gun may output blue, in a critical state, the LED lamp of the airless gun may output yellow, and in a warning state, the LED lamp of the airless gun may output red. The painting shooter has an advantageous effect of performing painting work while determining whether the airless pump has failed based on this color information.

The operations described in this specification have been described as being sequentially operated for convenience of description, but are not limited thereto. According to an embodiment, a plurality of operations may be performed simultaneously, and some operations are different from those shown or described. The order may be changed and implemented.

The method according to an embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. -A hardware device specially configured to store and execute program instructions such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of the program instructions include not only machine language codes such as those produced by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

Although various embodiments have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also the right of the present invention. Belongs to the range.

100: airless gun
200: airless pump
300: wireless vibration sensor
400: gateway
500: server

Claims (10)

In the smart painting facility monitoring system,
Airless gun;
Airless pump; And
A device networked with the airless gun and the airless pump;
Including,
The device calculates the amount of paint used for the airless pump based on vibration information of the airless pump, and the airless gun outputs available time information for use. The method of claim 1,
The airless pump includes a vibration sensor,
The device, characterized in that receiving the vibration information obtained from the vibration sensor, smart painting equipment monitoring system. The method of claim 2,
The device,
Based on the received vibration information,
Smart painting equipment monitoring system, characterized in that to determine the presence or absence of a failure of the airless pump. The method of claim 3,
The device,
Using the blade number frequency information of the airless pump and the vibration information of the airless pump,
Smart painting equipment monitoring system, characterized in that to determine the presence or absence of a failure of the airless pump. The method of claim 1,
The device,
Using the tip size information of the airless gun, paint information, rated flow rate information, and hose information connected between the airless gun and the airless pump, the paint usage is calculated. In the smart painting facility monitoring method,
Storing, by the device, information about the airless gun and the airless pump;
Calculating, by the device, the amount of paint used in the airless pump based on vibration information of the airless pump; And
Including, smart painting equipment monitoring method comprising the; step of the device, outputting the available time information that the airless gun can be used based on the amount of the paint through the airless gun. The method of claim 6,
The device further comprises the step of receiving the vibration information obtained from a vibration sensor attached to the airless pump, smart painting equipment monitoring method. The method of claim 7,
The device,
Based on the obtained vibration information, further comprising the step of determining whether or not the airless pump has a failure, smart painting equipment monitoring method. The method of claim 8,
The step of determining whether the airless pump has a failure,
A method for monitoring a smart painting facility, characterized in that to determine the presence or absence of a failure using the information on the number of blades of the airless pump and the vibration information on the airless pump. The method of claim 6,
The device further comprises the step of calculating the amount of paint used by using the tip size information of the airless gun, paint information, rated flow rate information, and hose information connected between the airless gun and the airless pump. Facility monitoring method.

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