KR20030066844A - Remote Monitoring and Control Method for Combustor and Volatile Organic Compounds Abatement Facilities for Spray Booth by Use of Internet Communication and System Thereof - Google Patents

Abstract

PURPOSE: A combustion apparatus of a painting booth using internet and a method and a system for monitoring and controlling remotely prevention of volatile organic compound equipment are provided to prevent an accident and enhance the safety by monitoring an abnormal state of the painting booth and reporting the abnormal state to a messaging center within a short time. CONSTITUTION: A web server(15) requests and receives an ID and a password to an user's terminal(14) connected to internet. An authentication server(16) certifies the ID and the password. The web server requests operating state data of a painting booth(100) connected to the user's terminal if the user's terminal is certified by the authentication server. The web server stores the operating state data into a database server. The web server checks normal states of the operating state data, stores the operating state data of abnormal states, and reports the operating state data of abnormal states to a messaging center. The ID and the password are requested and received according to a web user's request. The requested data related to the painting booth are provided by performing a certifying process of an authentication server.

Description

Remote Monitoring and Control Method for Combustor and Volatile Organic Compounds Abatement Facilities for Spray Booth by Use of Internet Communication and System Thereof}

The present invention relates to a remote monitoring, control method and system for the combustion apparatus and volatile organic compound (VOC) prevention facility of the coating booth using the Internet. The present invention relates to a method and system for remote monitoring and control of a combustion booth and a VOC prevention facility of a painting booth using the Internet in order to take appropriate measures in the event of a fault.

As is well known, the coating booths used for the maintenance of automobiles and industrial machines are equipped with combustion, heating equipment for the heat treatment of the coating, and VOC prevention facilities for removing VOCs from contaminated air during painting. All of them use fossil fuel and electricity as heat sources, so there is a great concern about overheating and fire, and due to the nature of the coating booth when printing, a large amount of paints and organic solvents are used. It is difficult to make a transition to a large fire.

In fact, as shown in the recent paint booth fire list in <Table 1>, the fire accidents of the paint booth are based on various factors, and despite the high frequency, there is a lack of technology and insufficient safety devices due to the small facilities Active efforts to prevent fires and accidents due to lack of safety awareness of users and users are insufficient.

<Table 1>

No Date of occurrence Fire type Possible cause Place Damage One 1998.3. Fire due to short circuit during grinding Short Circuit Spark Seoul Booth part burnout 2 1998.3. A fire caused by scattering embers Cigarette light Incheon Booth, Painting Line 3 1999.1. Unknown fire Unknown Seoul Booth burned down 4 1999.3. A short circuit fire Short circuit spark game Booth burned down 5 1999.7 A fire caused by scattering embers Welding Daejeon Burned down building 6 1999.8. A fire caused by scattering embers Cigarette light Seoul Booth part burnout 7 1999.11. A fire caused by scattering embers Welding Incheon Booth burned down 8 Dec. 1999 Fire due to overheating Labor pain game Booth burned down 9 2000.1. Unknown fire Unknown Seoul Booth burned down 10 2000.2. Fire due to careless handling Infrared heater conduction game Booth burned down 11 2000.6. LPG Leak Explosion LPG explosion limit ignition game 1 death, 1 burn 12 2000.8. A short circuit fire Spark on panel short circuit Seoul Booth burned down 13 2001.1. Fire due to overheating of activated carbon Activated Carbon Charge Characteristics Seoul Prevention part of burnout 14 2001.3. Fire due to overheating Fail safe game Booth burned down 15 2001.5. A fire caused by scattering embers Cigarette light Seoul Exhaust Box Part Burnout 16 2001.5. Fire due to overheating of activated carbon Activated Carbon Charge Characteristics Seoul Prevention part of burnout 17 2001.6. Unknown fire Unknown game Booth burned down 18 2001.6. A fire caused by scattering embers Polishing Flame, Low Filter game Booth part burnout 19 2001.6. Unknown fire Unknown Seoul Exhaust Box Part Burnout 20 2001.8. Fire due to overheating of activated carbon Temperature controller setting error Seoul Booth, Prevention Facility Partial Burnout 21 2001.9. Fire due to overheating Aging Aging Seoul Booth part burnout

The purpose of the present invention is to remotely monitor the operating conditions of the combustion device and VOC prevention facility of the paint booth facility to solve these problems, not only to ensure that normal and safe operating conditions are always maintained, but also immediately in real time in the event of an error. It is an object of the present invention to provide a remote monitoring, control method and a system of a combustion booth and a VOC prevention facility of a painting booth using the Internet, which enable the remotely to take a facility safety measure.

1 is an explanatory view showing the structure of a general paint booth

Figure 2 is an explanatory view showing a remote monitoring, control system of the combustion apparatus and VOC prevention facility of the coating booth according to the present invention

Figure 3 is a detailed view showing the painting booth side configuration for practicing the present invention

Figure 4 is a flow chart showing a remote monitoring, control method of the combustion apparatus and VOC prevention facility of the coating booth according to the present invention

Figure 5 is an example of the data providing screen related to the painting booth operation provided to the user in accordance with the present invention

Figure 6 is an example of the data providing screen associated with the painting booth operation provided to the manager in accordance with the present invention

7 is a contrast table showing the effect of the system and the conventional coating booth according to the present invention

* Explanation of symbols for the main parts of the drawings

1: painting room

2: supply fan

3: floor duct

4: floor outlet

5: multistage filter

6: VOC prevention related heater

7: Exhaust fan

8: Driving part

9: combustion temperature sensor

10: heater temperature sensor

11: static pressure sensor

12: PLC

13: A / D converter

14: Terminal

15: Web server

16: Authentication server

17: Media server

18: database server

19: mail server

100: paint booth

102: combustion device

200: Receive card

In order to achieve the above object, the present invention provides a coating chamber having a ceiling duct and a floor duct, a combustion device for heating external air, an air supply fan for supplying heated air to the interior of the painting chamber through an air supply duct, and The exhaust fan which adsorbs volatile organic compounds through the multi-level filter and the preheater of the VOC prevention facility and exhausts the purified air to the outside through the multi-phase filter and the preheater of the VOC prevention facility The temperature sensor mounted on the outside of the preheater and filter of the air supply duct and the VOC prevention facility, the air supply fan and the combustion device, and the driving unit controlling the on / off of the heater and the preheater of the VOC treatment facility, the exhaust fan, and all the above. PLC (Programmable Logic Controller) to control temperature sensor, static pressure sensor and driver, and current operation status A driving state receiving card receiving a value, an A / D converter for converting a value received from the sensor and the card into a digital signal, a terminal for transmitting a signal of the A / D converter, and a terminal connected to the Internet network For modem or LAN card,

The authentication server, media server, database server, and mail server are connected to the web server by TCP / IP, and the web server is connected to the internet network by routers and CSUs. The data is transmitted to the web server, analyzed to store the relevant data, and the administrator and user can monitor the operation status of the paint booth regardless of time and place. We propose a remote monitoring, control method and system for the facility.

Referring to the present invention in detail by the accompanying drawings as follows.

First, the overall configuration of the remote monitoring, control system of the combustion device 102 and VOC prevention facility of the painting booth 100 using the Internet for carrying out the present invention is shown in Figure 2, the coating booth 100 and the present invention 3 shows a connection structure of a remote monitoring and control system.

As can be seen from the present invention, the coating chamber 1 having a ceiling duct and a bottom duct, a combustion device 102 for heating external air, and a supply chamber to the inside of the painting chamber 1 through an air supply duct A multistage filter (5) and a VOC prevention facility for supplying air containing a volatile organic compound introduced through an air supply fan (2) for supplying heated air and a bottom duct (3) and a bottom outlet (4) of the coating chamber (1). In the well-known coating booth 100 which consists of the exhaust fan 7 which adsorbs a volatile organic compound through the heater 6, etc. and discharges the purified air to the outside, the air supply fan 2 and the combustion apparatus 102 are known. And a driving unit 8 for controlling on / off of the exhaust fan 7 and the heater 6 related to the VOC treatment, a combustion temperature sensor 9, a heater sensor 10 associated with the VOC treatment, and a static pressure sensor 11. And data of the PLC 12 and the PLC 12 to which the driving unit 8, the combustion temperature sensor 9, the heater sensor 10, and the static pressure sensor 11 are connected. Receiving whether the normal operation state, standby state or abnormal state such as disconnection, overheating and fire by the microprocessor to convert the data of the receiving card 200 and the receiving card 200 into digital data An A / D converter 13 and a terminal 14 and a modem or LAN card for transmitting the data of the A / D converter 13 to the web server 15 through the Internet,

The authentication server 16 connected to the web server 15 for authentication when the terminal 14 requests the connection, and the web server 15 for providing the screen output and sound output related to the painting booth 100 to the administrator and the user. Media server 17 connected to the server, a database server 18 for receiving and storing various data related to the operation of a plurality of paint booths delivered by the web server 15, and status data to the terminal 14 or the user. And a mail server 19 for transmitting the back or the like regularly or irregularly.

Referring to the system according to the invention thus made in more detail as follows.

As shown in FIG. 3, the present invention has an effective detection temperature of various sensors such as a combustion temperature sensor for monitoring the combustion state by the combustion device 102 in the painting booth 100 and an exhaust temperature sensor of 0 to 600 ° C. It is desirable to use Pt 100Ω material as a resistor in order to ensure a range of ± 1 ℃ of variation in sensing temperature, and to use a stainless tube to prevent corrosion, and to ensure that it does not deviate from vibration or wind speed during operation. Should be supported.

In addition, the operation state receiving card 200 receives the output value in real time from the PLC 12 to distinguish whether the current equipment is in normal operation state, standby state or abnormal state such as disconnection, overheating and fire by the microprocessor. send. In addition, the receiving card 200 provides an expansion slot to enable connection with the PLC 12 and the A / D converter 13.

The A / D converter 13 converts a signal of the driving state receiving card 200 into an RS-485 signal for long distance communication and may be manufactured integrally with the driving state receiving card 200. In addition, the pilot lamp may be attached so that the normal operation of the A / D converter 13 can be easily determined in the field.

The A / D converter 13 sequentially transmits a data transmission start signal, a machine unique number, an operation state value, and a transmission finish signal by a data request from a server. This is performed through the terminal 14 and a modem or a LAN card. The data is transmitted to the Internet, and although the plurality of terminals 14 are connected to the web server 15, the painting booth 100 and the booth 100 are connected by the unique number included in the output data of the A / D converter 13. It is possible to manage the division of transmission / reception data for each terminal 14 corresponding to 1: 1.

On the other hand, the present invention provides a great convenience that can monitor the received data stored in the web server 15 and the database server 18 freely regardless of time and place on the web by using the wireless Internet, such as PDA or mobile phone For this purpose, management programs written in Java and ASP have important functions. The management program is largely classified into a communication control program for requesting data from the web server 15 to the A / D converter 13 via the Internet network and the terminal 14 and collecting the received data. In addition, there is a process management program that converts the information into useful information for people searching, processing, and monitoring. The above two programs are programmed in Java language for rapid processing. It consists of a web program that functions as a user interface to execute the program, which is written as an ASP program.

Since the management program receives the state data of the coating booth 100 connected to the plurality of terminals 14 and processes it systematically, a very large processing capacity is required to be managed by a separate web server 15 and considering the load of signal processing. Therefore, the period for requesting data from the A / D converter 13 is preferably adjusted arbitrarily to 10 to 30 seconds.

The present invention can be easily connected anywhere in the Internet environment according to the above procedure to monitor the operating state of the combustion device 102 or VOC prevention facility of the painting booth 100 of the remote, so even if the machine at night It provides a system that ensures convenience and safety that can be easily monitored at home even when driving.In addition, in the event of an abnormality during monitoring, after a mechanical safety measure is taken, service personnel emergencyly dispatch to perform emergency measures and site checks. You can do it.

In the present invention, the A / D converter 13 is a light emitting diode unit as a pilot lamp for checking the operation signal receiving card 200 and the dip switch unit 301 that can set a unique number for each machine, and on the card. 302 is provided.

When the A / D converter 13 in the present invention receives a signal requesting a status value from the server sequentially sends a signal corresponding to the signal transmission start indication, machine identification number, operation and abnormal status value, signal transmission end The operation and fault values are "0" when the machine is running, "1" during operation, "2" during fire, "3" when overheating, "4" in case of disconnection, and when the operation is completed. Since it transmits a predetermined signal of "5", the server can accurately grasp the operating state with this state value.

In addition, the A / D converter 13 according to the present invention can distinguish the unique number by parallel connection even when a plurality of paint booths 100 are connected in parallel to transmit and receive signals.

4 is a flowchart of a remote monitoring and control program according to the present invention, which requests data from the web server 15 to the A / D converter 13 and collects the received data from the communication control program. Database creation and processing management programs, such as adding, modifying, and deleting, are written in JAVA language for quick processing and management accuracy.The database contents can be used by the user on the web or the administrator can search and modify the contents. It consists of a web management program written in ASP that composes a screen on the screen.

5 is a screen configuration diagram of a remote monitoring and control program according to an embodiment of the present invention, information on the operation status of the machine (operation status, abnormality, abnormal contents when the user and administrator can easily see and search) And time of occurrence, action taken, past accident history, etc.). In addition, by creating an administrator mode, an authorized web administrator may modify or generate necessary information.

In addition, the bimetallic temperature sensor mounted on the outer wall of the combustion apparatus 102, the air supply duct portion of the paint booth 100, the heater 6 of the VOC prevention facility, and the outside of the filter has an effective sensing temperature in the range of 0 to 600 ° C. To ensure the deviation of sensing temperature ± 1 ℃, Pt 100Ω material is used as a resistor, and the outer skin is preferably stainless steel tube to prevent corrosion, and it must be firmly supported so that it does not deviate from vibration or wind speed during operation. .

In addition, the operation state receiving card 200 receives the output value in real time from the PLC 12 to distinguish whether the current equipment is in normal operation state, standby state or abnormal state such as disconnection, overheating and fire by the microprocessor. send. In addition, the receiving card 200 provides an expansion slot to enable connection with the PLC 12 and the A / D converter 13.

The A / D converter 13 converts the signal of the driving state receiving card 200 into an RS-485 signal for long distance communication, and is manufactured integrally with the driving state receiving card 200 and the converter 13. Whether the normal operation of the light emitting diode unit 302 can be easily determined in the field.

The A / D converter 13 sequentially transmits a data transmission start signal, an ID, an operation state value, and a transmission finish signal according to the data request of the server, so that even if several machines are installed, It is possible to manage the transmission and reception of data.

On the other hand, the present invention provides a great convenience to monitor the received data regardless of place on the web freely using the wireless Internet, the management program written in Java and ASP for this purpose has an important function. The management program can be classified into a communication control program that collects the received data by requesting data from the server to the A / D converter 13, and classifies, retrieves, processes, and converts the collected data into useful information for the monitoring person. There is a process management program, and these two programs are programmed in Java language for speedy processing. Finally, it consists of a web program that functions as a user interface for users to connect to the Internet, enter specific addresses, and perform necessary monitoring and remote control. This will be written in an ASP program.

The management program receives data from a plurality of machines and processes the data systematically so that a very large processing capacity is required and managed by a separate web server 15. The period for requesting data is preferably adjusted to 10 to 30 seconds.

The present invention can be easily connected anywhere in the Internet environment according to the above procedure to monitor the operating state of the combustion device 102 or VOC prevention facility of the painting booth 100 of the remote, so even if the machine at night It is to provide a system that ensures convenience and safety that can be easily monitored at home even when driving.

In addition, the present invention can be installed on the receiving card 200 connected to the provided A / D converter 13, the dip switch unit 301 that can set the unique number for each painting booth 100, in some cases, the terminal In 14, the unique number for each paint booth may be set and output. In this case, the security of the operation may be further improved by additionally setting a password as well as the unique number.

The operation of the present invention will be described in more detail with reference to the flowchart shown in FIG. 4 as follows.

In the present invention, the initial operation of the web server 15 is performed by the authentication server 16, the media server 17, the database server 18 and the mail server 19, and then via the router and the CSU. It is checked whether there is a new connection request of the multiple terminals 14 connected to the Internet network. In this case, if there is a terminal 14 requesting a connection, immediately requesting the ID and password of the terminal 14, when the normal ID and password is input, the web server 15 transmits it to the authentication server 16 for authentication. Authentication by the server 16 is performed. Since the authentication server 16 stores the ID and password set up by the customer as a member, the stored ID and password are compared to determine whether the member is a normal member.

In the case of determining a normal member by this process, the web server 15 receives data from the media server 17 for the screen composition corresponding to the determination result.

The media server 17 accumulates animation, video, and audio data provided for the user's convenience, and synthesizes and outputs authentication-related screen data requested by the web server 15, and the web server 15 immediately outputs the data. Transmission to the terminal 14 via the Internet.

Therefore, the user or administrator in the place where the terminal 14 is installed can check whether the authentication. Subsequently, the web server 15 requests transmission of the state data of the painting booth connected to the corresponding terminal 14, and the terminal 14 sends the painting data of the painting booth connected to the PLC 12 via the A / D converter 13. Data transmission start signal, ID for combustion temperature, static pressure, exhaust temperature, VOC related heater temperature data and operating state data such as combustion device 102, air supply fan 2, VOC related heater 6, exhaust fan 7, etc. In addition, it transmits with the transmission finish signal unique number.

In practice, these operating state data indicate that the operating and fault values are "0" when the machine is running, "1" during operation, "2" during fire, "3" when overheating, "4" in case of disconnection, and When the operation is completed, the predetermined signal "5" is transmitted, so that the web server 15 can accurately grasp the driving state with this state value.

In this manner, the web server 15 receives the state data of the plurality of paint booths 100 connected to the plurality of terminals 14 and stores the state data in the database server 18. It is periodically or irregularly transmitted to the terminal 14 or the PDA or mobile phone of the user connected through the Internet. In addition, when the web server 15 determines that a situation requiring emergency action occurs among the state data of the multiple paint booths 100 connected to the multiple terminals 14, the web server 15 immediately sends a message to the messaging center of the location and accident of the corresponding paint booth. In the messaging center, the personnel waiting for the emergency are dispatched to the corresponding paint booth to take emergency measures to minimize the damage caused by various accidents. In addition, even when a user attempts to access a wireless Internet using a PDA or a mobile phone, the web server 15 receives an ID and password of a specific paint booth and performs authentication. The data requested by the terminal 14 is transferred from the media server 17, and when there is no terminal 14 requesting a new connection, the data of the plurality of terminals 14 maintained in the connection state to the Internet. Are sequentially requested, and the above-described operation of storing and accumulating the received data in the database server 18 is repeated.

FIG. 5 illustrates a screen in which the user receives the state data of the corresponding paint booth from the web server 15 in the present invention. As shown in FIG. 5, various data can be viewed at a glance. Therefore, it is possible to easily understand the operation status, abnormality, abnormal contents and occurrence time, action contents, past accident history, etc.

In addition, the administrator having a specific ID and password may configure and transmit and provide separate screen data as shown in FIG. 6 in the web server 15 to check or aggregate the state of the entire paint booth so as to be suitable for customer management. This authorized web administrator may modify or generate the necessary information.

7 is a graph showing the effect of accident prevention and cost reduction according to an embodiment of the present invention, the frequency of accidents for each of six months when the prior art is applied and the remote monitoring and control system according to the present invention, It shows the result of comparing machine down time and repair cost.

As shown in the graph, when the system according to the present invention is applied at a total of 12 occurrences of fire accidents and equipment failures in the related art, there was no fire accident and only three failures were found to significantly improve the effect. In the case of equipment downtime due to the above problems, it is reduced by 84% from 87 hours to 14 hours, and the total cost of machine repairs due to the above is greatly reduced from about 3.25 million won to 860,000 won, about 1/4 level. I could confirm it.

This shows that the remote monitoring and control system according to the present invention greatly contributes to the prevention of accidents of the facility and increases the safety level, and consequently shows a significant improvement effect of greatly reducing the cost of maintenance management.

In this way, the present invention immediately informs the messaging center when a sign abnormality occurs in the paint booth by a remote monitoring and control system, and immediately after-sales service personnel are dispatched and inspected, thus greatly contributing to preventing accidents and increasing safety. The result was a significant improvement that significantly reduced maintenance costs.

In addition, the present invention can not only managers but also users can continuously monitor the current state of their coating booths over time and space, thereby establishing a thorough management system of coating quality control and contributing to the improvement of the quality of coating products. There is this.

Claims (2)

When there is a new connection requesting terminal 14 in the Internet network to which the web server 15 is connected, the terminal 14 requests and receives an ID and password of the corresponding terminal 14, After verifying the ID and password of the terminal 14 by the authentication server, if the normal user requests the operating state data of the coating booth 100 connected to the terminal 14, received and stored in the database server, It determines whether the operation status data is normal for each item and saves it when anomalies related data occurs and notifies the messaging center. If a web user request is requested, request and receive an ID and password. After authentication by the authentication server 16 provides the requested booth 100 related data, and checks whether there is a new connection terminal 14, and repeats the above-described operation and the currently connected terminal ( 14) Remote monitoring and control method for the combustion device and the volatile organic compound prevention facility of the painting booth using the internet, characterized by repeating the process of sequentially requesting and receiving data. Coating chamber 1 having a ceiling duct and a floor duct 3, a combustion device 102 for heating external air, and a supply of heated air to the interior of the painting chamber 1 through an air supply duct. The air containing the volatile organic compounds introduced through the air supply fan (2) and the bottom duct (3) and the bottom outlet (4) of the coating chamber (1) and the heater (6) of the VOC prevention facility, etc. In the well-known thing consisting of the exhaust fan 7 which adsorb | sucks a volatile organic compound and discharges the purified air to the outside, the air supply fan 2, the combustion apparatus 102 and the exhaust fan 7, and the VOC processing-related heater ( 6, the driving unit 8 for controlling the on / off of the combustion, the combustion temperature sensor 9, the heater sensor 10 associated with the VOC processing, the static pressure sensor 11, these driving units 8 and the combustion temperature sensor ( 9), the PLC 12 connected to the heater sensor 10 and the static pressure sensor 11 and the data of the PLC 12 are transferred to the normal operation state, the standby state or Receiving card 200 for distinguishing and transmitting abnormal conditions such as overheating, overheating and fire by microprocessor, A / D converter 13 for converting data of receiving card 200 into digital data, and A A terminal 14 and a modem or LAN card for transmitting the data of the / D converter 13 to the web server 15 via the Internet; The authentication server 16 connected to the web server 15 for authentication when the terminal 14 requests the connection, and the web server 15 for providing the screen output and sound output related to the painting booth 100 to the administrator and the user. Media server 17 connected to the server, a database server 18 for receiving and storing various data related to the operation of a plurality of paint booths delivered by the web server 15, and status data to the terminal 14 or the user. A remote monitoring and control system for a combustion booth and a volatile organic compound prevention facility of a painting booth using the Internet, characterized by including a mail server 19 for regularly or irregularly transmitting the back and the like.