KR20230037231A - Iot-based wireless function added 2-wire thermostat control system and method - Google Patents

Abstract

The present invention relates to an IoT wireless heating management system for wirelessly and remotely controlling 2-wire thermostats that control the indoor temperature by regulating opening and closing of heating drivers connected to a hot water valve. The IoT wireless heating management system comprises: a user terminal having an application installed thereon to control the operation of 2-wire thermostats, and transmitting temperature and schedule setting data of the 2-wire thermostats to the outside through a wired or wireless communication network through the application; a service server generating control signals for the 2-wire thermostats from a previously stored database in response to the temperature and schedule setting data and transmitting the same through the Internet, when the temperature and schedule setting data transmitted from the user terminal is received; and an internal server connected to the Internet to receive the control signals transmitted from the service server. The internal server issues wireless communication signals to the 2-wire thermostats according to the control signals, and the 2-wire thermostats control whether to apply current transmitted to the heating drivers connected thereto, respectively, to control supply of hot water by the heating drivers.

Description

Two-wire thermostat control system and method with IOT-based wireless function added {IOT-BASED WIRELESS FUNCTION ADDED 2-WIRE THERMOSTAT CONTROL SYSTEM AND METHOD}

The present invention relates to an IoT wireless heating management system that controls indoor temperature by changing a set temperature by converting a control signal transmitted through the Internet into a wireless communication signal and sending it to a two-wire thermostat with a wireless function, More specifically, it relates to a control system and method for a two-wire thermostat with an IOT-based wireless function configured to remotely control a two-wire thermostat with a wireless function in the home through a wireless communication signal through an internal server connected to the Internet. .

In general, heating systems installed in houses or apartments include individual heating systems or central heating systems configured to enable heating control of rooms, living rooms, kitchens, etc. in each household using a heating distributor, and are classified into hot water and warm air types.

In particular, in the case of hot water heating, which is mainly installed in most houses or apartments, unlike warm air heating that directly heats indoor air, hot heating water from a boiler passes through heating pipes in each room to heat the floor. When the warm air in the lower part heated by contact with the floor of the room rises, the cold air in the upper part comes down to the floor of the room, and heating is performed by convection.

Therefore, since it takes a considerable amount of time from the start of heating until the indoor air is warmed up, most of the cases do not stop heating as much as possible unless the room is left empty for a long time even when going out. It is configured so that hot water can be supplied to hot water pipes installed in houses or apartments through heating distributors and valves to heat several rooms, living rooms, and kitchens. It varies depending on the purpose and time of use. However, despite the fact that the use pattern for each heating space is different depending on the use or time, it can be opened and closed only by manual operation, and thus there are many inconveniences in effectively and appropriately adjusting the heating environment.

In addition, during the winter season when heating is mainly used, the heating system is turned off when going out, but when going out for a long time, the heating system freezes up, and when you return home after going out and turn on the heating, you have to wait a long time for the heating to turn on. there is Recently, in order to solve this problem, a heating system to which a remote control technology is applied has been introduced.

However, most of the remote control technologies are employed in newly built apartments or new houses, and older apartments or houses using two-wire thermostats and heating actuators are relatively neglected in the application of new technologies.

However, in the case of a two-wire thermostat, unlike a three-wire thermostat, there is a problem in supplying power to apply IoT technology because a separate power supply is not provided and power and control use the same wire. As a way to circumvent this problem, there is a case where the function is applied by adding an IoT function to the actuator controller that connects the two-wire thermostat and the heating actuator in an integrated manner. This is because the actuator controller can supply a separate power source. However, in this case, there is a problem in that the installation work is not relatively simple because the user has to proceed with the operation of replacing the actuator controller.

In addition, in the case of 2-wire thermostats and heating actuators, compared to 3-wire thermostats, a separate actuator controller is not provided and in most cases only wiring is performed using a terminal box. There was also a problem of additional cost because a situation in which a heating actuator that meets the specifications of the actuator controller must be replaced together.

Korean Patent Registration No. 10-1933672 Korean Patent Publication No. 10-2018-0092542

An object of the present invention to solve the above problems is an IoT wireless heating management system implemented to enable remote control by integrating a user terminal connected to the Internet, a service server, an internal server, and a two-wire thermostat with wireless functionality added thereto. and to provide a method.

The second object of the present invention is a two-wire temperature controller with an IOT-based wireless function that can be built by replacing only the two-wire thermostat in older apartments or older houses where various brands of two-wire thermostats and corresponding heating actuators have been installed. It is to provide a regulator control system and method.

According to the present invention, a two-wire thermostat control system with an IOT-based wireless function for remote control by integrating a two-wire thermostat with a wireless function for adjusting indoor temperature and an internal server connected to the Internet is provided for a user terminal, service It includes a server, an internal server, and a 2-wire thermostat with a wireless function added.

The user terminal has an app installed for temperature control of the 2-wire thermostat, transmits the set temperature and schedule setting data of the 2-wire thermostat to the outside through a wired or wireless communication network through the app, and the service server transmits the user terminal When the set temperature and schedule setting data transmitted from the controller are received, control signals of the temperature controllers are generated from a pre-stored database corresponding to the set temperature and schedule setting data and transmitted through the Internet network, and the internal server connects to the Internet network. It is connected to receive the control signal transmitted from the service server, and transmits the control signal as a wireless communication signal to each of the two-wire thermostats to control the set temperature of the two-wire thermostat.

A two-wire thermostat control system and method with an IOT-based wireless function according to the present invention controls the two-wire thermostats that serve to apply current to a heating driver in a wireless manner through an internal server, thereby remotely controlling the two-wire temperature. You can control the controller.

In addition, since the temperature controllers play a role in controlling the heating actuators connected to each other, this method can be applied to various heating actuators connected to the 2-wire thermostat, so it can be immediately applied to the old district heating house environment, and the installation range is wide. Since it is limited to the temperature controller, it is easy to install and manage with minimal cost.

1 is an example of an existing heating system in which a motor-type heating actuator 50 or a wax-type heating actuator 51 is mixed and installed in an existing two-wire thermostat 39 without a wireless function.
FIG. 2 is an embodiment of an IoT wireless heating management system 100 in which a two-wire thermostat 40 and an internal server 30 to which a wireless function according to the present invention is added to the pre-installed heating system shown in FIG. 1 are built. .
3 is an overall embodiment in which the IoT wireless heating management system 100 according to the present invention shown in FIG. 2 is constructed including the user terminal 10 and the service server 20.
4 is an embodiment of the internal server 30 of the IoT wireless heating management system 100 shown in FIG.
5 is an embodiment of a two-wire thermostat 40 to which a wireless function is added among the IoT wireless heating management system 100 shown in FIG.
6 is an embodiment of the control flow of the IoT wireless heating management system 100 according to the present invention.

Specifications, numbers, and limitations in the text are for illustrative purposes only, and are applicable to a wide range without limiting the scope of the present invention.

In addition, the IoT wireless heating management system 100 of the present invention is optimized for district heating systems.

1 is an example of a conventional heating system in which a motor-type heating actuator 50 and a wax-type heating actuator 51 are mixed and installed.

For example, when the set temperature of the two-wire thermostat 39 is higher than the current temperature, the heating actuators 50 and 51 open the heating valve to perform heating, and set the set temperature of the two-wire thermostat 39 to the current temperature. If lower than that, the heating actuators 50 and 51 close the heating valve to stop heating.

2 is an embodiment in which the IoT wireless heating management system 100 according to the present invention is built indoors in the pre-installed heating system shown in FIG.

As shown, the IoT wireless heating management system 100 includes an internal server 30, a two-wire thermostat 40 with an added wireless function, and existing heating actuators 50 and 51.

In the case of the two-wire thermostat 39 without wireless function, it can be operated only manually, whereas in the case of the two-wire thermostat 40 with added wireless function, wireless communication with the internal server 30 is possible, so the set temperature can be changed. The back can be operated not only manually, but also using wireless communication. Under this configuration, the internal server 30 controls the thermostat 40 with a wireless communication signal, and accordingly, heating is controlled by opening or closing the heating actuators 50 and 51 .

Hereinafter, with reference to the accompanying drawings, a two-wire thermostat (40) with a wireless function for adjusting the temperature of the room (1) by controlling the opening and closing of the motor type and wax type heating actuators (50, 51) according to the present invention The entire preferred embodiment of the IoT wireless heating management system 100 and method for remotely controlling the via the internal server 30 will be described in detail.

3 is an overall embodiment of building the IoT wireless heating management system 100 according to the present invention shown in FIG.

As shown, the IoT wireless heating management system 100 includes a user terminal 10, a service server 20, an internal server 30, a two-wire thermostat 40, a heating actuator 50 and 51, and an IP It includes a router 60.

The user terminal 10 has an app installed for controlling the two-wire thermostat 40, and transmits temperature and schedule setting data of the thermostats 40 to the service server 20 through a wired or wireless communication network through the app. . The user terminal 10 may be in the form of a desktop or a smartphone. Wired communication includes Internet lines, and wireless communication includes wireless Internet such as LTE and wireless communication protocols such as WIFI.

When the temperature and schedule setting data transmitted from the user terminal 10 are received, the service server 20 extracts temperature, time, date, and day information from a pre-stored database corresponding to the temperature and schedule setting data. Then, control signals of the two-wire thermostats 40 are generated according to the extracted information and transmitted to the internal server 30 through the Internet network. The control signal is such that the temperature controller 40 sets the heating actuators 50 and 51 to N.O. or N.C. type and stored as N.O. or N.C. It is respectively controlled according to the type of heating actuators 50 and 51.

The internal server 30 is connected to the Internet through the Internet sharer 60 and receives a control signal transmitted from the service server 20 . In addition, each of the two-wire thermostats 40 provided in the room 1 is controlled according to the received control signal.

4 is an embodiment of an internal server 30 of the IoT wireless heating management system 100 shown in FIG.

As shown, the internal server 30 includes a system control unit 31, a manual control unit 32, an Internet connection unit 35, and a wireless connection unit 36. The system controller 31 generates a wireless communication signal transmitted to each of the two-wire thermostats 40 according to the control signal received from the service server 20 . The manual control unit 32 is provided for manual operations such as operation test and device registration. The Internet connection unit 35 is connected to the IP sharer 60 using wired (Ethernet) or wireless (WIFI) and is connected to the Internet. The wireless connection unit 36 controls each of the two-wire thermostats 40 according to the control target. The wireless connection unit 36 performs wireless communication using the unique IDs of the two-wire thermostats 40, and if the user manually operates the two-wire thermostats 40, the corresponding set value is converted into a wireless communication signal. It is received and delivered to the system control unit 31.

The user terminal 10 may connect to the internal server 30 through the service server 20 of the Internet. In this case, when a control signal is received from the user terminal 10 via the service server 20, the internal server 30 generates a wireless communication signal according to the control and sends it to the two-wire thermostat 40.

Such a communication connection between the user terminal 10 and the internal server 30 enables the two-wire thermostats 40 to be remotely controlled so that the heating actuators 50 and 51 are controlled to heat the room 1 to start or stop.

5 is an embodiment of a two-wire thermostat 40 of the IoT wireless heating management system 100 shown in FIG.

As shown, the two-wire thermostat 40 includes a system control unit 41, a manual control unit 42, an actuator control unit 43, and a wireless connection unit 46. The manual control unit 42 is provided so that the user can manually change the set temperature by pressing a button. The actuator control unit 43 is connected to the heating actuators 50 and 51 and the 220V power supply through two wires to open and close the heating actuators 50 and 51. The wireless connection unit 46 is provided to communicate with the wireless connection unit 36 of the internal server 30 using a protocol such as RF/ZigBee/Bluetooth. A wireless communication signal is received from the internal server 30 and transmitted to the system control unit 41, and when the system control unit 41 recognizes the value input through the manual control unit 42, the internal server through the wireless connection unit 36 Send to (30).

6 is an embodiment of the control flow of the IoT integrated heating management method 100 according to the present invention.

As shown, the IoT wireless heating management method for generating a control signal according to the control list of the two-wire thermostats 40 in the internal server 30 will be described.

a) When a user requests temperature setting data from the service server 20 through the user terminal 10, b) from the service server 20, the reference temperature, maximum temperature, minimum temperature, outside temperature, operation time per heating cycle and a reference value composed of heating operation intervals. c) Then, the service server 20 collects the external temperature in conjunction with the Korea Meteorological Administration, and sets an additional time to a reference value of operating time per heating cycle according to the external temperature, as shown in FIG. 4 . d) In addition, according to the user's selection, a reference value consisting of a reference temperature, a maximum temperature, a minimum temperature, and an outside temperature is assigned to one or more rooms in which the indoor (1) is divided by area, and additional temperature values are set for each reference value. . e) The service server 20 receives current temperature information of each room in the room 1 from the two-wire thermostats 40 pre-installed in the room 1. When the received current temperature information reaches the set value, a wireless communication signal is issued to the two-wire thermostat 40 to stop supplying hot water to the heating actuators 50 and 51, respectively. Conversely, when the current temperature information received is less than the set value, a wireless communication signal is issued to the temperature controller 40 to start supplying hot water to the heating actuators 50 and 51, respectively.

In addition, a) when a user requests schedule setting data from the service server 20 through the user terminal 10, b) the service server 20 determines the time, date or day of the week of the database in the service server 20. Select the list that matches the And the selected list is loaded into the heating operation standby list. c) The list that reaches the preset operation time among the heating operation waiting list sets the reference value consisting of the reference temperature, the maximum temperature, the minimum temperature, the outside temperature, the operation time per heating operation, and the heating operation interval. d) In addition, the service server 20 collects the external temperature in conjunction with the Korea Meteorological Administration, and sets an additional time to a reference value of operating time per heating cycle according to the external temperature, as shown in FIG. 4 . e) In addition, according to the user's selection, reference temperature, maximum temperature, minimum temperature, and outside temperature reference values are assigned to one or more rooms in which the indoor (1) is divided by area, and additional temperature values are set for each reference value. f) The service server 20 receives current temperature information of each room in the room 1 from the thermostats 40 pre-installed in the room 1. When the received current temperature information reaches the set value, a control command is issued to the thermostat 40 to stop the heating actuators 50 and 51 from opening/closing the hot water supply. Conversely, when the current temperature information received is less than the set value, a control command is issued to the thermostat 40 to start controlling the heating actuators 50 and 51 to open and close the hot water supply.

In the above, the preferred embodiments of the present invention have been described with reference to the accompanying drawings, but those skilled in the art to which the present invention pertains can implement the present invention in other specific forms without changing its technical spirit or essential features. You will understand that it can be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

indoor 1
IoT wireless heating management system 100
User terminal 10
service server 20
internal server 30
System Control 31
manual control 32
switch disconnect 33
power management 34
Internet connection 35
wireless connection 36
Pre-installed 2-wire thermostat 39
2-wire thermostat with wireless function added 40
System control 41
manual control 52
actuator control unit 43
power management 44
screen display 45
wireless connection 46
Motor type heating actuator 50
Wax Type Heating Actuator 51
internet router 60
terminal box 70

Claims (4)

In the IoT wireless heating management system that wirelessly remotely controls a two-wire thermostat that regulates indoor temperature by opening and closing a heating actuator connected to a hot water valve,
a user terminal installed with an app for setting and controlling the two-wire thermostats and transmitting temperature and schedule setting data of the two-wire thermostats to the outside through a wired or wireless communication network through the app;
When the temperature and schedule setting data transmitted from the user terminal are received, a service server generating control signals of the two-wire thermostats from a pre-stored database corresponding to the temperature and schedule setting data and transmitting them through an Internet network; and
An internal server connected to the Internet network and receiving the control signal transmitted from the service server;
The internal server,
IoT wireless heating, characterized in that by generating and transmitting a wireless communication signal corresponding to each of the two-wire thermostats according to the control signal, controlling the opening and closing of the hot water valve by controlling the heating actuator directly connected to the two-wire thermostat management system. According to claim 1,
The internal server,
a system control unit generating a wireless communication signal transmitted to each of the two-wire thermostats according to the control signal received from the service server; and
A wireless connection unit for transmitting the wireless communication signal or receiving the wireless communication signal transmitted from the two-wire thermostat; including,
The wireless connection unit,
IoT wireless heating management system, characterized in that by distinguishing the unique ID of each of the two-wire thermostats, connected using an RF or ZigBee communication method. According to claim 1,
The thermostat,
A system control unit for issuing a current signal for opening and closing the heating actuator according to a wireless communication signal received from the internal server or a user's manual operation; and
A wireless connection unit for receiving the wireless communication signal or transmitting a wireless communication signal to the internal server according to the user's manual operation;
The wireless connection unit,
IoT wireless heating management system, characterized in that connected using the RF or ZigBee communication method by distinguishing the unique ID of the internal server. An IoT integrated heating system in which an app for controlling the operation of the two-wire thermostat is installed in the user terminal and generates control signals for the two-wire thermostat according to a database pre-stored in the service server in response to setting data through the app. In the management method,
a) transmitting schedule setting data to the service server through the user terminal;
b) storing a list in a database in the service server according to data received from the user terminal by the service server, generating a heating operation standby list, and transmitting the generated list to the internal server;
c) a control list composed of a set temperature, a maximum temperature, a minimum temperature, an outside temperature, an operation time per heating operation, and a heating operation interval according to an operation time specified in the heating operation standby list received by the internal server from the service server After generating, storing the control list in a database in the internal server;
d) The internal server receives the current temperature of the room from the pre-installed two-wire thermostat, and the received current temperature and current time are determined by the internal server according to the time sequence of the control list, In comparison, the IoT integrated heating management method comprising the step of transmitting a wireless communication signal to the two-wire thermostat and opening and closing the heating actuator to which the two-wire thermostat is connected.

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