KR20170112709A - Automatic control valves using the Internet of Things - Google Patents

Abstract

The present invention relates to an automatic control valve system using the Internet of objects, and is an automatic control system that integrally installs a pressure sensor on an automatic valve, actively controls the object based on the Internet, and transmits the data to the upper central monitoring panel. The automatic control valve used in the system is simply used for the purpose of temperature control.
In particular, when selecting an automatic control valve, it is necessary to review and select many factors such as the type of fluid, the pressure at the upstream side of the valve, the pressure at the upstream and downstream sides of the valve, the number of flowmeters, Valves need to be actively controlled by combining with automatic control valves and IT technology, which have various characteristics and functions.
Therefore, it is possible to connect various kinds of valves with various functions and characteristics to the Internet, and it is possible to use a large amount of data to control valve water supply temperature, water temperature, valve inlet pressure, valve outlet pressure, actual flow rate, actual opening state, It is possible to provide the convenience of the manager by monitoring and controlling various values such as the opening degree. This function is advantageous in that the data information provided from the automatic control valve can be transmitted to the central control server and the portable terminal, enabling energy management more efficiently and also being available for maintenance management.

Description

[0001] The present invention relates to an automatic control valve system using an Internet,

More particularly, the automatic control valve used in a building is a very important factor for continuously controlling the flow rate of a fluid. In the control device of a building, It plays a very important role among the control devices of the heat source system to control and it is a factor used to control the energy used in the building. It can operate the best control operation according to the characteristics of the automatic control valve and the environmental conditions, The present invention relates to an automatic control valve system using the Internet.

At present, the world is moving rapidly into the era of U (Ubiquitous) - Revolution through the era of information revolution, so that computer chips are attached to almost everything in everyday life such as household appliances, household goods and automobiles, (USN, Ubiquitous Sensor Network) is being expanded.

In addition, the USN is entering the era of ubiquitous integrated network service, which is integrated wired / wireless, combined with the existing network, the Internet.

On the other hand, the importance of green-IT for green growth for present and future is emphasized in developed countries, and since Korea has set low-carbon green growth as national vision in 2008, Korea has been actively promoting green- It is true.

Therefore, technologies that actively employ Green-IT technology are being developed for a home network system that is developing on the basis of a ubiquitous network. For example, residents living in apartments and houses equipped with a U- Technologies such as activating or stopping household appliances or heating devices connected to a home network system are being introduced using a network.

However, in the case of the existing home heating system, it is possible to start or stop the heating operation or to control the room temperature according to the set temperature. However, the control according to the characteristics of each building space, The most frequently used function room is adjusted to a temperature that is slightly warm to suit the function, and the office space is controlled according to the characteristics of the space Do not consider at all

In accordance with such USN environment, an automatic control system that automatically controls facilities such as power, lighting, air conditioning, disaster prevention, and crime prevention installed in a building has been expanded as facilities of buildings have been modernized. (Or facility control system) capable of managing the facility management system is actively under development.

Such a facility control system can be generally based on a monitoring point for control or monitoring, which is referred to as a control point, and a user or the like may set up a single control point or a single control point on one facility (equipment) The value can be used to monitor, control, etc. the facility.

These facilities control system can set control points according to the types and types of facilities installed in the buildings, and can register them in the facility control system to perform automatic control of the buildings. Up to now, it is possible to save energy in buildings, There is no automatic control valve system which can remotely grasp and control the temperature difference and the pressure difference between the front and rear ends of the valve.

In recent years, many people have been making efforts to save energy in many buildings and to develop technology that can save the energy used in buildings. Particularly, when selecting an automatic control valve system, It is necessary to select the automatic control valve by examining many factors such as the primary side (valve front end) and the downstream side of the valve (downstream of the valve), the calculation of the number of flowmeters, the limit of applied pressure difference, and the close of rating. The automatic control valve system, which is very important for the management of energy, has not been proposed so far to be capable of various control and management by combining the automatic control valve and IT technology so that the characteristics and functions of the valve can be used in combination. The automatic control valve system is used only for limited use because of its simple function of opening / closing the valve (OPEN / CLOSE) There was a problem.

Therefore, the automatic control valve system with various functions and characteristics is connected to the Internet to send a lot of data and the automatic control valve can be used to control the supply water temperature, the water temperature, the valve inlet pressure, the valve outlet pressure, the actual flow rate, , Control setting value, etc., can be monitored and verified. Using the provided data, it can operate according to the characteristics of automatic control valve, can control precise valve, and helps to save building energy. And the like.

As a conventional control technique for heating, Korean Patent Registration No. 10-0361154 proposes a device and a method for purge heating control of a boiler, and a temperature and humidity sensor is installed in the room and the outside, so that the room temperature is appropriately maintained Although it is positive in that it controls the boiler, it does not take into consideration the characteristic of the heating space or the movement pattern of the resident. Therefore, there is a limit to maintaining a comfortable temperature automatically.

Korean Patent Publication No. 10-0361154

It is an object of the present invention to provide an automatic control valve system in which the pressure of the control valve before and after the control valve of the automatic control valve system, , Monitors changes in flow rate and incorporates a complex valve and IT technology that can have a wide variety of complex functions in a simple function of the conventional automatic control valve system to display fluid information on the field instructions and display the fluid information It is possible to control the feed water temperature, water temperature, valve inlet pressure, valve outlet pressure, actual flow rate, valve opening status, valve control set value and instantaneous calorific value automatically through Internet. Or the portable terminal, and it is possible to control such fluid information at remote sites and sites, and , To provide an automatic control valve system using the Internet of Things which to determine the current state of the automatic control valve on the end, and integrating the Internet of Things to be the control and monitoring is made available on the remote.

This object of the present invention can be achieved by providing a valve module with a pressure sensor and a temperature sensor and attaching a field indicator to the valve module and the field indicator directing the operation state of the fluid passing through the current pipe, The actual flow rate of the fluid flowing through the pipe of the valve module, the actual opening state, the set flow rate value, and the control setting value And an automatic control valve using the Internet according to the present invention capable of active control by using an automatic control valve system which is very important for building energy management since the displayed fluid information can be transmitted and received to a manager of a remote place through a communication module System.

This object of the present invention is achieved by connecting the valve module to the object Internet and using a lot of data of the valve module to control the supply temperature of the fluid flowing inside the pipe of the valve module, the water temperature, the valve inlet pressure, It is possible to provide the convenience of the field manager or remote manager by monitoring the actual opening state, set flow value, control set flow value and valve opening value. This function can be realized by using the data information provided in the automatic control valve system through the communication module It transmits to the central control server and portable terminal to enable energy management more efficiently. It is operated automatically according to the preset value. It is also used for maintenance management. The flow measurement control function is combined with the object internet to control temperature and flow The object of the present invention is to provide an automatic control valve system using the Internet .

An automatic control valve system using the Internet according to the present invention is characterized in that a pressure sensor and a temperature sensor are installed in a valve module and a field indicator is attached to the valve module, The communication module is also equipped with a communication module so that the state, temperature, pressure, flow rate, heat quantity, etc. can be digitized and displayed in numerical values, operated according to the automatically set value, and remotely controlled and monitored through the Internet. The flow rate, the actual opening state, the set flow rate value, and the control setting value are displayed on the field instructing section, and the displayed fluid information can be transmitted and received to the manager of the remote site via the communication module, The energy saving and the operation efficiency can be improved, and the conventional valve does not know the present progress state, The improvement is very large with products that can improve the disadvantages do not prevent a loss in the prior beforehand reduce the loss of energy.

1 is a schematic configuration diagram of an automatic control valve system using an object Internet according to a first embodiment of the present invention;
FIG. 2 is a schematic front view of an automatic control valve module of an automatic control valve system using an object Internet according to a first embodiment of the present invention
FIG. 3 is a front view of a display unit of a field instruction unit of an automatic control valve system using the Internet according to the first embodiment of the present invention; FIG.
Figure 4 is a schematic block diagram of the central control server of Figure 1;
FIG. 5 is a schematic block diagram of the manager portable terminal of FIG.
6 is a flowchart showing the operation of the automatic control valve module of the automatic control valve system using the Internet of objects according to the first embodiment of the present invention.
7 is a flowchart of a remote control of an automatic control valve module using a central control server at a remote place of an automatic control valve system using the Internet according to the first embodiment of the present invention

1, the automatic control valve system A using the object Internet according to the first embodiment of the present invention is configured such that each automatic control valve module E is connected to the central control unit And is connected to the server C or the portable terminal D of the manager.

The automatic control valve module E of the automatic control valve system A using the Internet according to the first embodiment of the present invention is installed in an engine room including a boiler installed in the underground of a building (not shown) As shown in FIG. 2, the automatic control valve module E includes a sensor unit 2 installed on each pipe 1 for sensing the type, temperature, flow rate and pressure of the fluid flowing in the pipe, And a field instruction unit 3 for displaying information of the fluid sensed by the sensor unit and transmitting the information to the central station C or the portable terminal D of the manager.

The fluid flowing in the pipe 1 may be any kind of liquid such as a gas such as steam or heated water or oil.

The sensor unit 2 includes a temperature sensor 21 for sensing the temperature of the fluid flowing in the pipe 1, a pressure sensor 22 for sensing the pressure of the fluid, a flow sensor 23 for sensing the flow rate, And a detection sensor 24 for detecting the type of fluid. The temperature sensor 2 includes a primary temperature sensor 21a for detecting the temperature of water on the inlet side of the control valve 40, And a second temperature sensor 21b for sensing the temperature of the water. The pressure sensor 22 includes a primary pressure sensor 22a for sensing the water supply pressure on the inlet side of the control valve 40, The secondary pressure sensor 22b for sensing the pressure makes it possible to more precisely detect the temperature difference and the pressure difference of the fluid flowing in the pipe 1 and the flow rate sensor 23 can detect the temperature difference and pressure difference of the fluid flowing through the pipe 1 The flow rate of the fluid flowing in the pipe 1 is detected, and the detection sensor 24 can detect the type of fluid flowing in the pipe 1 As shown in the drawing, the field instructing unit 3 includes an input unit 30 for performing an input for selecting an automatic mode or a manual mode, a receiving unit 31 for receiving a sensed value of the sensor unit 2, An operation unit 32 for operating the required equipment according to the detection value of the receiving unit 31, a display unit 33 for displaying the sensed value sensed by the receiving unit 31 and displaying the digitized value, A transmission / reception module 35 for receiving a transmission command transmitted from a remote location, a storage unit 36 for storing necessary information, a control unit 37 for determining a sensing value and receiving a transmission command from a remote location and performing appropriate control .

Although the input unit 30 is described as using a switch that is divided into manual and automatic modes, the present invention is not limited thereto, and various changes and modifications may be made.

The receiver 31 receives the sensed values of the temperature sensor 21, the pressure sensor 22, the flow rate sensor 23 and the sensing sensor 24 and sends the signals to the control unit 37 through the A / D conversion unit.

The operation unit 32 may block or open the flow of the fluid by lifting the control valve 30 operated by a motor (not shown) according to a control command of the controller 37, The circulation pump 39 is started or stopped.

The display unit 33 displays a sensed value sensed by the receiving unit 31 and converted into a digital signal, and the sensed sensed value is displayed on the display unit 33 such as a water supply temperature, a water temperature, a valve inlet pressure, a valve outlet pressure, A set flow rate value, a control set flow rate value and an opening value of the valve are displayed. When the mode display 33a of the front view shown in the display unit of the field instruction unit 3 shown in Fig. 3 is pressed, do. If the pressing operation of the mode 33a is not performed for about 5 seconds, the water supply temperature is automatically displayed. An arrow 33b for raising or lowering the temperature is displayed at the lower end of the mode 33a so that the user can manually set the target temperature in the field.

In the present invention, the opening value of the valve is calculated as the height (length) of the valve stem when the valve stem is operated, so that the output value of the conventional valve can be calculated more accurately than the value calculated as a percentage.

The transmission / reception module 35 is driven using Zigbee, Bluetooth, UART, or other wired / wireless communication methods.

The storage unit 36 stores an inflow / outflow management program for the fluid, stores optimum operating conditions, and outputs necessary storage contents to the controller 37 as needed. In addition, the storage unit 36 is stored in such a way that it can calculate the optimized temperature by the season database. For example, it is a comfortable temperature of spring, summer, autumn and winter for three years. ℃, autumn 25 ℃, winter 23 ℃, winter day temperature 18 ℃ and night temperature 5 ℃, summer day temperature 28 ℃ and summer night temperature 15 ℃, summer day temperature 18 ℃ and night temperature 10 ℃ The optimum inlet temperature of the fluid passing through the pipe 1, the return temperature, the valve inlet pressure, the valve outlet pressure, the actual flow rate, the actual opening state, the set flow rate value, Flow rate value, valve opening value, and the like are stored. The optimum temperature is set based on a known flow rate diagram, and a detailed description thereof will be omitted.

The controller 37 receives the current fluid type, the temperature information, the pressure information, the flow rate information, the stored optimum temperature, and the like, and controls the automatic control valve module E so as to operate at the optimum efficiency to control efficient heating of the building .

The central control server C is programmed such that a flow-in / outflow management program for a fluid flowing in the piping 1 is programmed and a processing signal for processing a detection signal provided from the field- E to the field instructing unit 3.

4, the central control server C includes a display unit 51, a memory unit 52, a control unit 53, a communication unit 54, an input unit 55, Unit 56 and an operation unit 57 are provided.

The display unit 51 displays information processed by the central control server C so as to be recognizable and can display a UI or a GUI provided by the central control server C and displays a monitor or other display means .

The memory unit 52 stores the temperature data optimized for the seasonal database. For example, the memory unit 52 includes appropriate temperature data corresponding to four seasons of spring, summer, autumn, and winter, summer, autumn, and called pleasant temperatures in the winter, spring 25 ℃, summer 27 ℃, fall 25 ℃, and stored in the winter 23 ℃, daytime temperatures in the same season 18 ℃, night temperature 5 ℃, daytime temperature of 28 ℃ in summer And the optimum temperature is set differently according to the night temperature 15 ° C, the daytime temperature 18 ° C during summer and the night temperature 10 ° C.

In addition, the optimum water supply temperature, the water return temperature, the valve inlet pressure, the valve outlet pressure, the actual flow rate, the actual opening state, the set flow rate value, and the control setting flow rate value passing through the piping 1 of each automatic control valve module E , The valve opening value, and the like are stored. Also, this optimal temperature is set based on the known flow rate diagram, and a detailed description thereof will be omitted.

The control unit 53 controls the components included in the central control server C, and in the present invention, the control target is a part corresponding to the automatic control valve module E included in a building or a building. The control unit 53 may control the display unit 51 to display information corresponding to a specific control time on the screen.

The controller 53 receives the sensor value received from the field instructing unit 3 of the automatic control valve module E and selects the optimum value in the memory unit 52 based on the sensed value of each sensor Referring to the stored value stored in the numerical value, and sends the processed instruction to the field instruction unit 3 of the automatic control valve module E. [

The communication unit 54 uses a wired / wireless communication scheme, and uses Zigbee, Bluetooth, UART or other wired / wireless communication scheme.

The input unit 55 performs an input for controlling the central control server C and the automatic control valve module E. [ The input unit includes a keypad, a touch pad, a jog switch, and the like.

The control unit 30 is connected to the output unit 56. The output unit 56 sequentially displays the control time of each control valve 30 according to the passage of time, 30) can be grasped closely.

The operation unit 57 can calculate and process the input sensed value including the integration of the flow rate values and the integration of the calorific value values.

The portable terminal D of the manager also has a memory unit 62 in which a program for controlling inflow and outflow of fluids flowing in the pipeline 1 is programmed and processes a sensing signal provided from the field instructing unit 3 And outputs a processing signal to the field instruction unit 3 of the automatic control valve module E. [

The portable terminal D may be a portable Internet device, MP3, MP4, portable multimedia player (PMP), a notebook computer, an UMPC (Ultra Mobile PC), a cellular phone, And various electronic devices such as PDAs (personal digital assistants).

The portable terminal D also includes a display section 61, a memory section 62, a control section 63, a communication section 64 and an input section 65, as shown in Fig. The display section 61, the memory section 62, the control section 63, the communication section 64 and the input section 65 of the portable terminal D are the same names of the central control server C The detailed description thereof will be omitted.

The operation of the automatic control valve system A using the Internet according to the present invention having such a configuration will be described in detail below.

First, whether the automatic control valve module E installed at the end of the automatic control valve system A using the Internet according to the present invention is automatically activated or manually operated is selected through the input unit 30 of the field instructing unit 3 . When the automatic mode is selected, the control unit 37 is operated according to the information stored in the storage unit 36 of the field instructing unit 3 so that the automatic control valve module E is automatically operated to have the optimum efficiency. 6, when the operation of the automatic control valve module E is started and the automatic mode is selected, it is confirmed that the optimum set temperature stored in the storage unit 36 is set, , The boiler is operated. If it is higher than the set temperature, the valve inlet pressure of the next step is checked. If it is higher than the set pressure, the flow proceeds to the next optimum flow rate confirmation step. The circulation pump 39 is operated. In this way, the water supply temperature, the water return temperature, the valve inlet pressure, the valve outlet pressure, the actual flow rate, the actual opening state, the set flow rate value, the control set flow rate value, And is terminated when the operation time elapses.

When the manual mode is selected, numerical values necessary for operation such as input of set values, for example, set temperature input and set flow rate value, are inputted manually through the display unit 33 of the field instructing unit 3, The module E is operated manually, and when the module E is operated for a predetermined time, the automatic control valve module E is started by manually closing the module E.

7, when the central control server C at the remote location manages the automatic control valve module E, the display unit 51 of the central control server C controls the piping 1, To the transmission / reception module 35 of the field instructing unit 3 via the communication unit 54 to check the temperature of the fluid flowing in the pipe 1 to determine the temperature of the primary temperature sensor 21a of the fluid of the present pipe 1 And sends an instruction to confirm.

Receiving the command, the transmission / reception module 35 of the field instruction unit 3 receives the detection value of the primary temperature sensor 21a of the sensor unit 2 through the control unit 37 and transmits the detection value of the primary temperature sensor 21a through the transmission / When the sensing value received through the communication unit 54 is lower than the optimum value set in the memory unit 52, the boiler 38 is operated to start the piping 1 The circulating pump 39 is operated to circulate the heated fluid in the pipe 1 so as to reach the proper temperature.

As the fluid thus heated flows out through the pipe 1, the temperature of the fluid flowing out, the temperature of the return water of the fluid, the valve inlet pressure, the valve outlet pressure, the actual flow rate, the actual opening state, the set flow rate value, And the opening value is measured through the sensor unit 2. The sensed value thus measured is transmitted to the central control server C through the transmitting and receiving module 35 of the field instructing unit 3, The control valve 40, the boiler 38 and the circulation pump 39 are operated so as to coincide with each other so as to be coincident with each other when the detected values received through the control unit 54 do not coincide with the optimal values set in the memory unit 52 It will operate.

Likewise, the remote control operation mode of the portable terminal D of the manager at the remote location is the same as the manner in which the automatic control valve module (E) is managed by the central control server (C) Is omitted.

The automatic control valve system using the Internet according to the present invention can be said to be an industrially applicable invention because it is possible to repeatedly manufacture the same product in a general automatic control valve system industry.

1. Piping 2. Sensor part 3. Field indications C. Central control station D. Portable terminal

Claims (5)

In an automatic control valve system (A) using the Internet,
The automatic control valve system A using the Internet is connected to the automatic control valve module E via the Internet B to the remote control server C or the manager's portable terminal D,
The automatic control valve module E includes a sensor unit 2 installed on each pipe 1 for sensing the temperature, flow rate and pressure of fluid flowing in the pipe, and a sensor unit 2 for detecting the fluid information sensed by the sensor unit And sends it to the central station (C) or the portable terminal (D) of the manager,
The sensor unit 2 includes a temperature sensor 21 for sensing the temperature of the fluid flowing in the pipe 1, a pressure sensor 22 for sensing the pressure of the fluid, and a flow sensor 23 for sensing the flow rate , The temperature sensor 2 has a primary temperature sensor 21a on the inlet side and a secondary temperature sensor 21b on the outlet side with the control valve 40 as a center and the pressure sensor 22 is connected to the control valve Side pressure sensor 22a and a secondary pressure sensor 22b on the outflow side are provided on the inlet side and the downstream side of the pipe 40. The flow rate sensor 23 detects the flow rate of the fluid flowing in each pipe 1 Lt; / RTI >
The field instructing unit 3 includes an input unit 30 for performing an input for selecting an automatic mode or a manual mode, a receiving unit 31 for receiving sensed values of the sensor unit 2, A display unit 33 for displaying the sensed value sensed by the receiving unit 31 and displaying the digitized value, and a transmission / reception unit 32 for transmitting the digitized value and receiving a remote transmission command And a control unit (37) for determining a sensed value and receiving a transmission command from a remote site to perform appropriate control. Automatic control valve system
The method according to claim 1,
The receiving unit 31 of the field instructing unit 3 receives the sensed values of the temperature sensor 21, the pressure sensor 22 and the flow rate sensor 23 and sends the signals to the control unit 37 via the A / The operation unit 32 may block or control the flow of the fluid by moving the control valve 30 up and down according to a control command of the control unit 37 to control the operation of the boiler 38 or the circulation pump 39, And the display unit 33 displays the sensed values sensed by the receiving unit 31 and converted into digital data. The sensed values displayed are the water supply temperature, the water temperature, the valve inlet pressure, the valve outlet pressure, the actual flow rate, And the opening / closing module 35 is a wired / wireless communication system of ZigBee, Bluetooth, and UART. The storage unit 36 stores the flow of the fluid, And the control unit 37 stores the current temperature information, the pressure information, the flow rate Correction and automatic control valve system to receive provide optimal temperature control for the stored automatic control valve module (E) to be movable at optimum efficiency with Internet of Things characterized in that the control of the efficient heating of the building
The method according to claim 1,
The central control server C includes a display unit 51, a memory unit 52, a control unit 53, a communication unit 54, an input unit 55, an output unit 56 and an operation unit 57 ),
The display unit 51 displays information processed by the central control server C so as to be recognizable and can display a UI or a GUI provided by the central control server C and can display a monitor or other display means Including,
The memory unit 52 is stored in a database so as to calculate an optimized temperature,
The control unit 53 controls components included in the central control server C and the control unit 53 receives sensor values received from the field instruction unit 3 of the automatic control valve module E, To the field instruction unit (3) of the automatic control valve module (E), a processing command processed based on the sensor value so as to perform the operation,
The communication unit 54 uses a wire / wireless communication method,
The input unit 55 performs an input for controlling the central control server C and the automatic control valve module E,
The control unit 30 is connected to the output unit 56. The output unit 56 sequentially displays the control time of each control valve 30 according to the passage of time, 30. The automatic control valve system using the Internet as claimed in claim 1,
The method according to claim 1,
The portable terminal D of the manager also has a memory unit 62 in which a program for controlling inflow and outflow of fluids flowing in the pipeline 1 is programmed and processes a sensing signal provided from the field instructing unit 3 And outputs a processing signal to the field instructing section 3 of the automatic control valve module (E)
The portable terminal D may be a portable Internet device, MP3, MP4, portable multimedia player (PMP), a notebook computer, an UMPC (Ultra Mobile PC), a cellular phone, Selected from personal digital assistants (PDAs)
The portable terminal D includes an automatic operation using the object Internet characterized by including a display unit 61, a memory unit 62, a control unit 63, a communication unit 64, and an input unit 65. [ Control valve system
The method of claim 3,
Wherein the operation unit (57) is capable of integrating the flow rate value and the calorific value value integration process. The automatic control valve system

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