KR100860390B1 - The apparatus for controlling fan in underground duct - Google Patents

Abstract

An apparatus for controlling a fan in an underground duct is provided to drive a drain pump and a ventilator in a semi-automatic mode if a user sets to the semi-automatic mode and then switch to a general mode in the termination of the semi-automatic mode. An apparatus for controlling a fan includes a ventilator(121), a drain pump(131), and a controller(101). The ventilator includes an impeller to generate air flow and a casing to guide the air through the impeller. The ventilator operates when receiving information about a driving command from the controller. The communication between the ventilator and the controller is made through a PLC(Power Line Communication) module. The drain pump transports water or oil through a pipe by using a pressure. The drain pump transports fluid in a low-pressure container to a high-pressure container.

Description

Blower control device for underground power outlets {The apparatus for controlling fan in underground duct}

The present invention relates to a blower control device for an underground power outlet, and more particularly, if the underground power outlet drain pump and blower driven by the user is set to semi-automatic setting information by the user, the underground according to the set semi-automatic setting information. The present invention relates to a technique capable of controlling the power pump drain pump and the blower to be driven in the semi-automatic mode, and controlling the reset to the normal mode when the semi-automatic mode is terminated.

In general, the underground space is the underground space where the various power cables to provide the power supply line is buried, such underground power zone is being constructed in a new city, especially difficult to install the transmission tower.

The above-mentioned underground power outlet is provided with a blower for driving the ventilation, and is also provided with a drain pump for driving to discharge corresponding to the water level detection when rain water is introduced.

This blower and drain pump were controlled by their respective controls and were simply driven in the normal mode, DEFAULT mode, which was suited for the underground power outlet environment.

Therefore, the blower or the drain pump manager manually sets the blower and the drain pump according to the inspection environment for the inspection, and after the inspection, the control unit is returned to the respective control device to the general mode set for the underground power outlet environment. There was an inconvenience to switch. For example, if the general mode is set to drive the blower for 10 minutes at 2 hour intervals, and the drain pump is set to be driven when the water level reaches a level of 80, the manager may set the blower according to the inspection environment. It is set to drive continuously, the drainage pump is set to be driven every time the water level reaches the value of 20, and then proceed with the maintenance work, after the maintenance work is finished, the manager returns to the respective control device to the general Should be reset to mode.

Therefore, an object of the present invention is to devise to improve the inconvenience as described above, if the semi-automatic setting information is set by the user for the underground power outlet drain pump and blower driven in the normal mode, according to the set semi-automatic setting information It is to provide a blower control device for the underground power tool to control the drainage pump and the blower for the underground power tool to operate in a semi-automatic mode, and to be reset to the normal mode when the semi-automatic mode is terminated.

In order to achieve the above object, the present invention provides a control device for controlling the blower of the underground power sphere, fire extinguishing unit; A temperature sensor for detecting current temperature information and transmitting the same to the controller; When the present temperature information is received from the temperature sensor, the received present temperature information is analyzed, and if the received present temperature information is equal to or greater than the fire boundary temperature value, the fire extinguishing unit is driven and fire occurrence information is transmitted through a power line communication module. A control unit for analyzing the current blower driving state information if received, and generating blower driving stop information if the analysis result is driving state; And a power line communication module which transmits the fire occurrence information received from the fire alarm device to the control unit and transmits the blower driving stop information generated by the control unit to the blower. It is the basic characteristic in technical configuration.

The present invention controls the drain pump and the blower to be driven in the normal mode to operate in a semi-automatic mode at the request of the administrator, and at the end of the semi-automatic mode, the normal mode is automatically reset so that the blower or the drain pump manager is working or checking After that, the inconvenience of having to return to each control device and manually resetting to the general mode is eliminated, thereby increasing convenience of the administrator. In addition, by forming a single control unit for controlling the drain pump and the blower, there is an effect of reducing the speed and cost for maintenance.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the present invention should be defined by the claims and their equivalents.

It should be noted that in the following description, only parts necessary for understanding the operation and operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention. DETAILED DESCRIPTION Hereinafter, detailed descriptions of preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a system diagram for controlling a drain pump and a blower according to an embodiment of the present invention. Referring to FIG. 1, the drain pump and the blower driven in the normal mode are controlled to be driven in the semi-automatic mode at the request of an administrator, and when the semi-automatic mode ends, the control is reset to the normal mode. Referring to the configuration of the system for controlling the blower and the drainage pump according to the specificity, the system for controlling the blower and the drainage pump comprises a blower 121, the drainage pump 131 and the control device 101. .

The blower 121 is largely composed of an impeller that causes the flow of air, a casing that guides the flow into and out of the van and is used for various intake / exhaust systems. According to an embodiment of the present invention, the blower 121 is driven when receiving the driving command information from the control device 101, and when receiving the driving stop command information, the driving is stopped. In this case, the communication connection with the control device 101 may be made through a power line communication (PLC) module.

The drain pump 131 transports a fluid such as water or oil through a pipe by a pressure action, or pumps a fluid in a low pressure container into a high pressure container through the pipe. According to an embodiment of the present invention, the drain pump 131 is driven when receiving the driving command information from the control device 101, and when receiving the driving stop command information, the driving is stopped. In this case, the communication connection with the control device 101 may be made through a power line communication (PLC) module.

The control device 101 forms a control device 103 of the blower 121 and a control device 105 of the drain pump 131 into a single unit, and drains the water from the blower 121 through a power line communication (PLC) module. The pump 131 is controlled. The power line communication has a transmission capacity of 1Mbps or more and can transmit various information such as voice, data, and video in a power network. According to an embodiment of the present invention, the control device 101 generates and transmits the control information according to the normal mode or the semi-automatic mode, that is, the driving command information or the driving stop command information, and transmits the blower 121 and the drain pump ( 131). Here, the general mode means a default mode (DEFAULT) mode suited to the underground power outlet environment in which the blower 121 and the drain pump 131 are located, and the semi-automatic mode is a mode in which the operator temporarily sets the work environment. it means. In addition, when the semi-automatic setting information is set by the operator, the control device 101 controls the control information to drive the blower 121 and the drain pump 131 driven in the normal mode according to the set semi-automatic setting information in the semi-automatic mode. It generates, controls, and resets (switches) to the normal mode at the end of the semi-automatic mode. In addition, the control device 101 stops driving by controlling the blower 121 when receiving the fire occurrence information, and controls and drives the fire extinguishing unit when the current temperature of the control device 101 is detected as the fire boundary temperature, When the freeze protection button is input, the heater part of the drain pump 131 is controlled and driven.

2 is a block diagram of a control device according to an embodiment of the present invention. Referring to FIG. 2, a configuration of the control device for controlling the blower and the drainage pump will be described. The control device 101 includes a PLC module 201, a temperature sensor 205, a fire extinguishing unit 205, and a timer. 207, a keypad 209, a memory 211, a display unit 213, an image processor 215, and a controller 221.

The PLC module 201 is composed of a microprocessor and a memory, and includes a central processing unit (CPU), an input unit and an output unit for connecting signals to external devices, a power supply unit for supplying power to each unit, It consists of a peripheral device that writes a program to a memory in the PLC. In particular, the input unit serves to transmit a signal generated from an external device to the operation unit of the CPU. Types of input include DC 24 [V] and AC 110 [V]. Other special inputs include analog input (A / D) and high speed counter. The output unit transfers the result of the internal operation to an external magnetic contactor or solenoid to be driven. Types of output include a relay output, a transistor output, a solid state relay (SSR) output, and the like, and other output modules include an analog output (D / A) section and a positioning section. The power line communication (PLC) module 201 is connected to the blower 121 and the drain pump 131 and transmits driving information or driving stop information according to an embodiment of the present invention, and the blower 121 ) And the drain pump 131. In addition, it performs a function of receiving the current level value information from the water level sensor unit of the drain pump 131.

The temperature sensor 205 detects the control device 101 and the ambient temperature according to an embodiment of the present invention and performs a function for transmitting to the control unit 221.

The fire extinguishing unit 205 is driven under the control of the control unit 221 when the fire boundary temperature value is detected from the temperature sensor 205 according to an embodiment of the present invention performs a function to block the fire.

The timer 207 counts the time according to the time information included in the semi-automatic setting information set by the worker in accordance with one embodiment of the present invention. For example, if the worker sets 30 minutes, 30 minutes are counted from the set point.

The keypad 209 includes keys for inputting numeric and text information and function keys for setting various functions. In addition, the keypad 209 may include a blower / drainage pump general mode key, a blower / drainage pump semi-automatic mode key, a time setting key, a confirmation key, a freeze protection key, and the like.

The memory 211 may be composed of a program memory and a data memory. The program memory stores a program for controlling a general operation of the control device 101. The program memory stores control program information for controlling the control device 101. In addition, in the data memory, the default information for executing the normal mode, for example, the blower 121 is driven for 10 minutes at intervals of 2 hours, and the drainage pump 131 reaches the level 80 when the water level reaches a value of 80. When the drive door level 20 is reached, default information is stored to stop driving, and semi-automatic setting information set by the operator to execute the semi-automatic mode is stored. Here, the semi-automatic setting information includes device information to which the semi-automatic mode is applied, time information on which the semi-automatic mode is to be executed, and control condition information. In addition, the current operating state information of the blower and the drain pump is stored.

The image processor 215 performs a function of generating screen data for displaying an image signal. The image processor 215 transmits an image signal received under the control of the controller 221 in accordance with the standard of the display unit 213, and compresses and decompresses the image data. In addition, the start address value of the image data output to the display unit 213 is transmitted or the start address value is changed and set under the control of the control unit 221.

The display unit 213 displays image data output from the image processor 215. In this case, the display unit 213 may use an LCD. In this case, the display unit 213 may include an LCD controller, a memory capable of storing image data, and an LCD display device. Herein, when the LCD is implemented using a touch screen method, the keypad 209 and the LCD may be input units. The display unit 213 includes an image data display unit for outputting image data. The blower 121 and the drain pump 131 may be controlled through the image processor 215 and the display unit 213, and the driving status information generated while driving the blower 121 and the drain pump 131 may be monitored. .

The controller 221 generally controls the control device 101. According to an embodiment of the present invention, the control unit 221 controls to transmit control information, that is, driving command information or driving stop command information to the blower 121 and the drain pump 131 according to the normal mode or the semi-automatic mode. And, when the semi-automatic setting information is input and set by the operator, and controls the blower 121 and the drain pump 131 to be driven in the normal mode in the semi-automatic mode according to the set semi-automatic setting information, the semi-automatic mode Upon termination, reset to the normal mode.

The controller 221 analyzes the received current level value information when receiving the current level value information from the drain pump in the drain pump semi-automatic mode, and the analysis results indicate that the received current level value information is semi-automatic. If it is equal to or greater than the threshold number, drain pump driving information is generated. On the other hand, if the received current level value information is less than the value of the semi-automatic threshold number, drain pump driving stop information is generated.

In addition, the control unit 221 checks the current time in the drain pump semi-automatic mode, and if the current time is the end of the drain pump semi-automatic mode included in the semi-automatic setting information, the drain pump semi-automatic mode to the normal mode Switch to

The control unit 221 generates a blower driving information in the blower semi-automatic mode to drive the blower, and checks the current time, if the current time is the blower semi-automatic mode end time included in the semi-automatic setting information, the blower Switch the semi-automatic mode to normal mode.

In addition, the control unit 221 stops driving by controlling the blower 121 when receiving the fire occurrence information from an external device (fire alarm device), when the current temperature of the control device 101 is detected as the fire boundary temperature The fire extinguishing part is controlled and driven, and when the freezing prevention button is input, the heater part of the drain pump 131 is controlled and driven.

3 is a block diagram of a blower according to an embodiment of the present invention. Referring to FIG. 3, the configuration of the blower will be described. The blower 121 includes a PLC module 301, a memory 203, a fan module 305, and a blower controller 307.

The PLC module 301 is connected to the control device 101 according to one embodiment of the present invention to receive driving information or driving stop information.

The memory 203 may be composed of a program memory and a data memory. The memory 203 stores a program for controlling a general operation of the blower 121.

The fan module 305 is provided with vanes and a motor to be driven or stopped under the control of the blower controller 307.

The blower controller 307 drives the fan module 305 when driving information is received from the control device 101, and stops driving the fan module 305 when driving stop information is received.

Figure 4 is a block diagram of a drain pump according to an embodiment of the present invention. Referring to FIG. 4, the configuration of the drain pump will be described. The drain pump 131 may include a PLC module 401, a memory 403, a motor unit 405, a heater 407, and a water level sensor 409. And a drain pump control unit 411.

The PLC module 301 is connected to the control device 101 according to one embodiment of the present invention to receive driving information or driving stop information. In addition, the water level sensor 409 transmits the current level value information to the control device 101.

The memory 403 may be composed of a program memory and a data memory. The memory 203 stores a program for controlling a general operation of the drain pump 131.

The motor unit 405 is driven or stopped under the drain pump control unit 411.

The heater unit 407 may be provided in the motor unit in the form of a heater wire or a radiator and is driven or stopped by the control of the drain pump control unit 411.

The water level sensor 409 measures the current water level and transmits the water level value information to the PLC module 301.

The drain pump controller 411 drives the motor unit 405 when driving information is received from the control device 101, and stops driving the motor unit 405 when driving stop information is received. In addition, when the freeze protection driving information is received from the control device 101, the heater unit 407 is driven. When the freeze protection driving stop information is received, the heater unit 407 is stopped. In addition, the level sensor 409 and the PLC module 301 is controlled to transmit the measured current level value information to the control device 101.

5 is a flowchart illustrating an operation of controlling the drain pump and the blower in the semi-automatic mode according to the semi-automatic setting square according to an embodiment of the present invention, and FIG. 6 is a flowchart for controlling the drain pump in the semi-automatic mode according to an embodiment of the present invention. 7 is a flowchart illustrating an operation of controlling the blower in the semi-automatic mode according to an embodiment of the present invention. Referring to FIGS. 5, 6, and 7, the control apparatus controls the drain pump and the blower driven in the normal mode to be driven in the semi-automatic mode at the request of an administrator, and resets the normal mode when the semi-automatic mode ends. The control operation will be described. In the following description, the general mode partner controls the blower 121 and the drain pump 131 in a default (DEFAULT) mode which is preset to be suitable for the underground power outlet environment where the blower 121 and the drain pump 131 are located. it means. For example, a default value is set to drive the blower for 10 minutes at intervals of two hours, the drain pump is driven when the water level reaches the level 80 value and is driven when the water level drops to the level 20 value. If the default value (DEFAULT) is set to stop the control unit 101 transmits the blower driving information to the blower 121 at intervals of 2 hours, and after 10 minutes the blower driving stop information to the blower 121 Transmitting and repeating the process to control the blower 121. When the control device 101 receives the water level value information corresponding to the level 80 value from the drain pump 131, the control device 101 transmits the drain pump driving information to the drain pump 131, and the level from the drain pump 131. Upon receiving the water level value information corresponding to the 20 value, the drain pump driving stop information is transmitted to the drain pump 131 and the process is repeated to control the drain pump 131.

When the operator inputs the semi-automatic setting information using the keypad 209 in step 501 in the normal mode state, the controller 221 detects this in step 503, proceeds to step 505, and controls the display unit 213 to input the semi-automatic setting information. Display semi-automatic setting information. Here, the semi-automatic setting information includes device information to which the semi-automatic mode is applied, time information on which the semi-automatic mode is to be executed, and / or control condition information. For example, the device information to which the semi-automatic mode is to be applied may be drain pump and / or blower information, and the control condition information may be a level value for driving the drain pump or strength and weakness information of the blower.

Then, when the operator inputs the semi-automatic mode execution (confirmation) key by using the keypad 209, the controller 221 detects this in step 507 and proceeds to step 509. In step 509, the controller 221 controls the memory 211 to analyze the input semi-automatic setting information and set (store) it.

As a result of the first analysis, if the input semi-automatic setting information is the drain pump semi-automatic setting information, the control unit 221 detects it in step 511 and proceeds to step 513. In step 513, the controller 221 controls the memory 211 to enter the drain pump semi-automatic mode. In this case, the semi-automatic mode refers to a mode in which the worker temporarily executes the work environment. In operation 515, the control unit 221 executes the drain pump semi-automatic mode according to the set semi-automatic setting information. Referring to FIG. 6, the operation of executing the drain pump semi-automatic mode according to the semi-automatic setting information will be described in more detail. First, in step 601 of the drain pump semi-automatic mode, the current water level value information is received from the drain pump 131. When receiving the control unit 221 detects this in step 603 and proceeds to step 605. In step 605, the controller 221 analyzes the received current water level value information. As a result of the analysis, if the received current level value information is greater than or equal to the value of the semi-automatic boundary number (for example, level 20), the control unit 221 detects this in step 607 and in step 609 controls the PLC module 201 to drain. Pump driving information is transmitted to the drain pump 131. However, if the result of the analysis indicates that the received current level value information is less than the value of the semi-automatic boundary number (for example, level 30), the controller 221 detects it in step 607 and controls the PLC module 201 in step 611. The drain pump driving stop information is transmitted to the drain pump 131.

In operation 601 of the drain pump semi-automatic mode, the second control unit 221 checks the current time by controlling the timer 207. As a result of the check, if the current time is the end of the drain pump semi-automatic mode, the control unit 221 detects this in step 615 and proceeds to step 617. In step 617, the control unit 221 controls the memory 211 to change the drain pump semi-automatic mode to the normal mode.

On the other hand, if the second semi-automatic setting information is the blower semi-automatic setting information as a result of the analysis, the control unit 221 detects this in step 517 and proceeds to step 519. In step 519, the controller 221 controls the memory 211 to enter the blower semi-automatic mode. In this case, the semi-automatic mode refers to a mode in which the worker temporarily executes the work environment. The control unit 221 executes the blower semi-automatic mode according to the set semi-automatic setting information in step 521. Referring to FIG. 7, the operation of executing the blower semi-automatic mode according to the semi-automatic setting information will be described in more detail. In step 701, the controller 221 controls the PLC module 201 to send the blower driving information to the blower 121. Transfer and proceed to step 703. In step 703, the controller 221 checks the current time by controlling the timer 207. As a result of the check, if the current time is not the blower semi-automatic mode end time, the blower 121 is driven and maintained. However, if the current time is the blower semi-automatic mode end time, the controller 221 detects this in step 705 and proceeds to step 707. In step 707, the controller 221 controls the memory 211 to change the blower semi-automatic mode to the normal mode.

8 is a flowchart illustrating an operation of controlling a blower and a drain pump according to an embodiment of the present invention, according to one embodiment of the present invention. Referring to FIG. 8, when the fire occurrence information is received, the operation of the blower is stopped, and when the fire boundary temperature is detected, the fire extinguishing unit is driven. In step 801, when the fire occurrence information is received from the fire alarm device in the PLC module 201, the controller 221 detects it in step 803 and proceeds to step 805. In step 805, the controller 221 analyzes the current blower driving state information by controlling the memory 211. As a result of the analysis, if the blower 121 is in the stopped state, the control unit 221 detects it in step 807 and maintains the current state. On the other hand, if the blower 121 is in the driving state as a result of the analysis, the controller 221 detects it in step 807 and proceeds to step 809. In step 809, the controller 221 controls the PLC module 201 to transmit the blower driving stop information to the blower 121.

When the current temperature information is received from the temperature sensor 203 in step 801 in the standby state, the controller 221 detects it in step 811 and proceeds to step 813 to analyze the received current temperature information. As a result of the analysis, if the received current temperature information is equal to or greater than the fire boundary temperature value, the controller 221 detects it in step 815 and proceeds to step 817. In step 817, the control unit 221 drives the fire extinguishing unit 205.

In step 801, the standby state, when a worker inputs a freezing prevention button using the keypad 209, the controller 221 detects this in step 819 and proceeds to step 821. In step 821, the controller 221 controls the PLC module 201 to transmit the heater part driving information to the drain pump 131.

1 is a system diagram for controlling the drain pump and the blower according to an embodiment of the present invention.

2 is a block diagram of a control device according to an embodiment of the present invention.

3 is a block diagram of a blower according to an embodiment of the present invention.

4 is a block diagram of a drain pump according to an embodiment of the present invention.

Figure 5 is a flow chart of the operation of controlling the drain pump and the blower in the semi-automatic mode according to the semi-automatic setting square according to an embodiment of the present invention.

6 is a flow chart of the operation of controlling the drain pump in a semi-automatic mode according to an embodiment of the present invention.

7 is a flow chart of the operation of controlling the blower in the semi-automatic mode according to an embodiment of the present invention.

8 is a flowchart of an operation of controlling a blower and a drainage pump according to an embodiment of the present invention, according to one embodiment of the present invention.

Claims (1)

In the control device for controlling the blower of the underground power sphere, Digestive tract; A temperature sensor for detecting current temperature information and transmitting the same to the controller; When the present temperature information is received from the temperature sensor, the received present temperature information is analyzed, and if the received present temperature information is equal to or greater than the fire boundary temperature value, the fire extinguishing unit is driven and fire occurrence information is transmitted through a power line communication module. A control unit for analyzing the current blower driving state information if received, and generating blower driving stop information if the analysis result is driving state; And a power line communication module which transmits the fire occurrence information received from the fire alarm device to the control unit and transmits the blower driving stop information generated by the control unit to the blower.

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