KR200250347Y1 - Multi-functional indoor temperature control apparatus for saving energy - Google Patents

Abstract

The present invention relates to an improved temperature controller for energy saving in centralized temperature control in a separate office of a common building divided into a number of separate spaces such as apartments, condominiums, hotel rooms, dormitories, and training centers. . Unlike the conventional method, the multi-functional indoor temperature controller of the present invention does not need to install a separate information collecting panel and gateway by connecting to a multi-port using a communication conversion device of a central main computer using a wired / wireless communication method.

In addition, the multi-function temperature controller according to the present invention, if any one of the indoor convection temperature, the heating water temperature and the temperature of the ondol structure of each generation is lower than the user preset temperature by operating the heating device to raise the room temperature Korean To ensure a comfortable heating according to the living pattern of the. In addition, a device for recognizing whether the user is in the room / vacant room is installed in association with the entrance door, and when it is determined that the room is empty, the heating device is stopped to prevent unnecessary energy waste. On the other hand, in winter, the main computer and the multi-function thermostat check the heating water temperature in each room to perform forced heating where there is a concern.

On the other hand, the indoor temperature controller of each household is wirelessly connected with the home appliances and the wireless RF module therein, so that the power supply and the gas valve of the home appliances are cut off by the power cutoff signal of the indoor temperature controller, so that it is unnecessary in the vacancy. Prevents wasted power and prevents gas leaks.

Description

Multi-functional indoor temperature control apparatus for saving energy

The present invention relates to an improved multifunctional indoor temperature control device for energy saving and comfortable temperature control in a common building consisting of a plurality of separate spaces such as an apartment, a condominium, a hotel, a dormitory, a training center, and more specifically, in a conventional method. In connecting the room temperature controller with the main computer in the management room, by installing a separate information collection panel and gateway, the troublesome and hassle in pipe wiring was improved, so that the room temperature controller was directly connected to the main computer. The present invention relates to an improved centralized multifunctional room temperature control device for automatically shutting off a power supply and a gas valve of a home appliance by connecting a home appliance with a wireless communication method indoors.

In large residential spaces such as apartments, condominiums, and hotels, a large amount of heating energy is used, and the user's occupancy and departure are frequent. Therefore, if the heating is done in unchecked condition, a considerable amount of energy loss cannot be avoided. .

Conventional heating methods such as apartments have a single loop control method that combines a thermostat and valves operating in an individual household to be controlled only within the household, and a centralized management of multiple households.

The single loop control method, which is controlled only within individual households, compares the room temperature detected by the temperature sensor with the temperature preset by the user in the case of the user's room, and does not operate the heating device if the former is higher than the latter. In the opposite case, the heating system is operated.

On the other hand, the conventional centralized management method is composed of a central main computer, a gateway (gateway), an information collecting panel (Direct Digital Controller) and the room temperature sensor. 1 is a block diagram of a conventional apparatus for heating control using a main computer 40 in a common building such as an apartment. The individual heating control equipment installed in each generation space includes a temperature sensor 11, a humidity sensor 12, a valve actuator 13, a damper actuator 14, a power unit, and an inverter board 15. The temperature value detected by the temperature sensor 11 of each generation and the humidity value detected by the humidity sensor 12 are A / D converted as analog signals, and then an information collection panel (DDC) 20 installed on each floor of the building. Is collected. Subsequently, the gateway switches from RS485 to RS232. The main computer 40 of the management room compares the data of each generation that has passed through the gateway with a reference value and then sends a control signal for each generation. The control signal transmitted from the main computer is inputted to the information collecting panel 20 via the gateway 30 upside down, and is transmitted to the room temperature controller through wiring to each household. Operation of the valve actuator 13, the damper actuator 14, the power board, and the inverter board 15 of each generation is controlled by the control signal.

In the conventional centralized management method, since the temperature controller installed in each room is finally connected to the main computer of the management room, it has to pass through the information collecting panel and the gateway, so that separate piping wiring between the individual controller and the information collecting panel is required. There was a downside.

In addition, the conventional temperature control method uses one of a method of detecting a convection temperature in a room, a method of detecting a temperature at a heating water return part of a boiler, and a method of detecting and controlling a temperature of a structure of an on-floor floor. However, this method has the following problems.

First, the method of detecting and controlling the indoor convection temperature causes the boiler not to operate because the indoor temperature rises due to indirect heat when there are a lot of occupants in the room or the kitchen hot air balloon is used due to food preparation.

The method of determining the starting of the boiler by detecting the temperature of the second heating water and comparing it with the set temperature is different from the habitual sense of the convection temperature that a person usually feels. Is difficult.

Third, the method of detecting and controlling the temperature of the structure of the ondol floor should be designed differently according to the scale of heat storage in the room, and because the convection temperature is ignored, the control error may be large depending on the insulation level of the building.

In addition, the conventional heating control method has a problem that does not take into account various variables such as weekdays, weekends, holidays, winter season, summer season, change season.

The multi-functional indoor temperature controller according to the present invention recognizes whether the user is in a room, and compares the present temperature with the set temperature in the re-execution to make the heating, and stops the heating in the public practice to reduce unnecessary energy consumption. And even in public operation, if there is risk of freezing like in winter, it is forced to be heated by any program in advance.

In addition, when any one of the indoor convection temperature, the heating water temperature and the temperature of the ondol structure is lower than the set temperature, the heating device is to be operated.

And in connecting the temperature controller installed in each generation and the main computer in the central control room, unlike the existing method, the wiring is simplified by directly connecting without going through the information collecting panel and the gateway.

In addition, by connecting the air conditioner to the indoor home appliance power supply unit and the gas valve wirelessly, the user can turn off the home appliance according to the power and gas shutoff signal of the room temperature controller to prevent waste of energy and shut off the gas valve. To prevent the risk of gas leakage.

1 is a block diagram of a conventional centralized temperature control apparatus used in an apartment, a condominium, and the like.

Figure 2 shows a path through which the current measurement temperature of each generation and the user's set temperature in the conventional temperature control device to the information collection panel (DDC).

3 is a schematic input / output relationship diagram of a CPU of a conventional room temperature controller.

4 is an overall configuration diagram of a multifunctional temperature control device according to the present invention.

5 is a block diagram showing the input and output relationship of the CPU of the room temperature controller in the present invention.

6 is an actual circuit diagram of the CPU of the room temperature controller according to the present invention.

7 is a circuit diagram of the RS485 communication method between the room temperature controller and the main computer in the present invention.

8 is a display circuit diagram for displaying the indoor temperature, the set temperature, etc. by the output of the CPU of the indoor temperature controller of the present invention.

9 shows a dip switch input circuit for setting an address in a CPU of an indoor temperature controller in the present invention.

Figure 10 shows a circuit for applying the heating control signal output of the CPU of the room temperature controller according to the present invention to the boiler or valve actuator.

Fig. 11 is a circuit diagram of detecting indoor convection temperature and inputting it to the CPU of the indoor temperature controller.

Fig. 12 is a circuit diagram of detecting the heating water temperature and inputting it to the CPU of the room temperature controller.

Fig. 13 shows the relationship between the indoor / room recognition apparatus installed in the door and the room temperature controller and the power cutoff signal of the room temperature controller are transmitted to the power supply device and the gas valve shutoff device of the home appliance by the RF module.

14 is a relationship between the room temperature controller, the boiler, and the gas leakage sensor of the present invention.

* Explanation of symbols in the drawings

10: individual heating control equipment 11: temperature sensor

12: humidity sensor 13: valve actuator

14: damper actuator 15: power drive, inverter drive

16: User setting input 18: Central processing unit (CPU)

20: information gathering group 30: gateway

40: main computer

100: room temperature controller 111: indoor convection temperature sensor

112: heating water temperature sensor 113: ondol structure temperature sensor

130: user setting input 140: dip switch

141: gas leakage sensor 150: in-room / vacancy recognition unit

160: boiler 161: valve actuator

162: air conditioner

170: home appliance 180: central processing unit (CPU)

181: external memory 190: display

400: main computer 410: subcomputer

The present invention is installed in each generation of the joint building in the indoor temperature controller for controlling the indoor temperature by comparing the indoor temperature and the set temperature input by the user,

A room / vacancy recognition unit 150 for determining whether a user's room or vacancy is detected by detecting an operation state of the door lock device;

A temperature sensor for sensing a temperature of the room and outputting the measured value as an analog temperature signal;

A key input unit 130 for inputting and setting a desired room temperature of the user;

An A / D converter converting the signal of the temperature detector into a digital signal and outputting the digital signal;

In the case of occupancy of a room by receiving signals from the room / vacancy recognition unit, the A / D converter, and the key input unit, the former is compared with the temperature value received from the A / D converter and the temperature set by the key input unit. A control unit 180 for outputting a heating operation signal in the case of less than and outputting a heating stop signal in the opposite case, and outputting a heating stop signal in the case of vacancy;

A heating facility operating unit 160 connected to the control unit to start or stop a heating facility according to a heating operation signal or a heating control signal;

A display 190 connected to the control unit to display a current room temperature, a user set temperature, and a heating facility operating state; And

An external memory 181 connected to the control unit to store a program and data necessary for a control operation and to provide a memory area necessary for program execution of the control unit; It provides a multi-function room temperature controller, characterized in that consisting of.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

4 is an overall configuration diagram of a multifunctional room temperature controller according to the present invention. The indoor temperature controller 100 installed in each generation is connected to the boiler 160, the keytack recognizer 150, the heating water valve 161, and the power supply 170 of the refrigerating / cooling device. Originally, the room temperature controller displays the current temperature and generates a control signal (for individual heating) or flows into each household when the former is lower than the latter compared to the user's set temperature to command the operation of the boiler 160. The only purpose was to apply the control signal for opening the valve of the heating water pipe to the valve actuator 161 (in the case of central heating). However, in the present invention, in addition to the simple temperature control, a locker / room recognition device is installed in the lock of the door to detect the rotation of the locker to determine the locker / vacant room, and the heating method is different in the case of the locker and the locker. Operate the device.

In addition, the present invention is connected to the cooling mechanism, such as air conditioning room temperature controller to enable the cooling control.

In addition, wireless transceivers are installed in the power supply of home appliances such as air conditioners, refrigerators, televisions, and lighting, and the actuators and temperature controllers of gas valves. At the same time the gas valve is turned off.

The indoor temperature controller 100 of each room senses the temperature and humidity, the set temperature of the user and sends it directly to the main computer 400 of the central control room through the RS485 communication line. The main computer 400 communicates with the subcomputer 410 and stores data or executes a special function of the subcomputer.

The room temperature controller 100 of the present invention may be remotely controlled by the main computer 400, or may generate a control signal by itself regardless of the control of the main computer.

In the following description, the room temperature controller is connected to the main computer to be remotely controlled. The main computer controls the heating and cooling on the basis of the temperature set by the user when the user re-executes, and the program stored in the main computer in the public practice.

As the main computer 400 of Fig. 4, a personal computer is usually used. Personal computers are easy to operate, such as setting and changing, using Windows as the operating system. The graphic display can be used to monitor the temperature of each household, change the set temperature, and manage several rooms in one group. In addition, it is possible to calculate the monthly gas consumption by calculating and outputting the operating hours of the boiler on a daily and monthly basis or by periodically generating a report.

Figure 5 is a block diagram showing the input and output relationship of the CPU 180 of the room temperature controller 100 according to the present invention. As a device 150 for determining whether a user is occupied or vacant, a door sensor, a key tag, a fingerprint reader, or the like may be utilized.

Recognition method of the user's occupancy / leave out of the present invention is entirely based on the following method. When a user moves out and locks a lock by using a key or key device outside the door, the user is recognized as a departure (vacant room), and the door is locked out from the outside despite the presence of a person in the room. Similarly, only when the user enters the lock by turning the lock on the outside of the door while entering the room is recognized as a room, even though there is a person in the room, the case of opening the lock outside from the outside is excluded.

The user may input the set temperature to the temperature controller (130). And the address on the whole apparatus of each temperature controller is input using the dip switch 140. FIG. The room temperature and the heating water temperature are obtained as analog values and are then input to the CPU after A / D conversion.

Looking at the output side of the CPU of the room temperature controller, wirelessly connected to the power supply unit 170 and the gas valve actuator of the home appliance, in the case of vacancy power and gas cutoff signal is transmitted.

The control signal is applied to the boiler in case of individual heating and to the valve actuator in case of central heating. In addition, a control signal is applied to the air conditioner 162 to operate or stop the air conditioner.

The display 191 is composed of an LED (Light Emitting Diode), and displays the detected temperature, the set temperature, and the operating state of the heating apparatus. The CPU 180 is connected to the main computer 400 by the RS485 communication method. Programs and data necessary for the CPU's arithmetic functions are stored in an external backup memory device 181, such as an EEPROM. Even in the case of a power failure, since the final set temperature is backed up to the external memory 181, this may be restored.

Thermostats for each household should be installed 1.2m-1.5m above the ground, away from direct sunlight, near windows and doors.

Introducing the specifications of the room temperature controller used in the present invention is as follows.

(1) Temperature setting: 15 ° C to 35 ° C

(2) Indoor temperature monitoring and display: 1) Sensor: semiconductor type temperature sensor (LM35DZ)

2) range: 2 ° C.-40 ° C .; 0-100 ℃

3) Display: three digits, seven segments, LCD

(3) Boiler return piping surface temperature sensor: 1) Sensor: RTD pt100 [Ω]

2) Measuring range: 0 ℃ ~ 100 ℃

(4) Measured value correction function

(5) Control signal output to heating control equipment

(6) signal input of key tag

(7) Address setting: Set from 0 to 31 by setting dip switch

(8) Baud rate setting: 19200/38400 bps

(9) It saves the last setting value at the time of power failure by backup of setting value by EEPROM and operates normally at the time of restoration.

(10) Status display LED: The operating status LED can be checked from the outside of the regulator. Power and communication LEDs are installed inside the regulator.

(11) Proportional control function: has proportional band within ± 2 ℃.

6 is a circuit diagram of a CPU of the multifunctional room temperature controller of the present invention. The room temperature is input to terminal 2 and the heating water temperature is input to terminal 3. The set value of cooling and heating temperature of boiler and air conditioner is input to terminal 5. The occupancy / vacancy signal is input to terminal 8. Gas leakage alarm signal is input to terminal 9, and boiler alarm signal is input to terminal 10. Address input by a dip switch operation is made through terminals 33 to 40. The result calculated by the CPU is transmitted to the information collection unit (DDC) by the RS485 method through the TX and RX terminals, that is, through the 25 and 26 terminals.

In Fig. 6, Y1 generates a reference clock as a crystal oscillation element (x-tal). To reset the CPU, press SW1 while R1 is connected to the pullup resistor to reset the CPU to a low action. The CPU used in the room temperature controller is pic16C74, which is an 8-Bit CMOS microcontroller with built-in A / D converter. This CPU has 4Kbyte EPROM, 192byte data memory and 33 input / output ports.

7 shows a communication line for transmitting information from the CPU 180 of the temperature controller according to the present invention to the main computer 400. It uses RS485 communication method and communicates in half duplex. It can transmit up to a distance of 1.2 km. Depending on the number of thermostats installed, a repeater is needed to reduce communication speed and reduce errors. If there are no repeaters, up to 32 units can be connected.

Through this communication interface, the room temperature controller and the main computer of each room communicate directly. Generally, a small computer system interface (SCSI) bus is used as a communication interface. A temperature controller located at the end of a communication line uses a jumper pin and a terminating resistor to indicate that the temperature controller is terminated. .

FIG. 8 is a circuit diagram of displaying a room temperature, a set temperature, and a heating water temperature by a three-digit seven-segment or LCD display according to a display signal output from a multifunction temperature controller. The chip used as the display driver is the U3 74HC573 (Octal 3 State transparent latch). RP1 and RP2 are current limiting resistors.

9 is a dip switch input circuit connected to an address setting unit of an indoor temperature controller. By operating a dip switch connected to the U4 74HC245 chip via a pull-up resistor RP3, the changed address and group settings and baud rate are input to the multifunction thermostat's CPU. In the present invention, the address setting by the dip switch can be set from 0 to 31, and the setting does not overlap the address and function setting with the temperature controller elsewhere.

10 is a circuit diagram for outputting a control signal from a temperature controller to a heating device. The output of the photo triac coupler is used to directly turn the AC220V power supply on and off. The internal logic circuit and the circuit of the output part are electrically insulated and are not affected by disturbance. When a current flows through the input terminal, the photo triac is turned on, and the input current is turned on in synchronization with an arbitrary phase to which an input signal is applied by the diac Z1 through the resistor R20 and the triac Q3. By this action, it is possible to turn on / off the boiler supplied with AC220 by the heating control signal input of the indoor temperature controller.

11 shows a semiconductor room temperature detection circuit. As a temperature sensor, a semiconductor type temperature detector having a voltage output of 10 mV per 1 ° C is used. The output of the temperature sensor is input by the OP amplifier IC (U8), amplified five times, and changed to an output of 50mV per 1 ° C. In Fig. 11, VR1 is for offset adjustment and VR2 is for reference voltage adjustment.

12 shows a heating water temperature control circuit. Install a temperature sensor of pt100Ω on the heating pipe of the boiler. In the present invention, the minimum reference temperature of the forced operation of the boiler for freezing prevention is set by the user individually or collectively by the main computer. It is preferable to set the room heating minimum reference temperature to prevent freezing in the range of approximately 5 ° C to 19 ° C.

FIG. 13 shows that the power cutoff signal and the gas cutoff signal are applied to the RF module of the home appliance and the gas valve actuator by the wireless RF module installed in the room temperature controller when it is determined that the vacancy is determined by the indoor / outdoor recognition device installed at the door. Indicates. Conventionally, a device for connecting a room temperature controller and an indoor TV, a heater, an air conditioner, and the like by using a cable to cut off the power of a TV or the like when it is recognized that the user has left is known. In this case, however, the cables were buried in the walls or routed along the edges, which was not aesthetically pleasing and labored with installation.

However, in the present invention, a wireless RF module is installed in a room temperature controller using a short range wireless communication technology to transmit a power and gas shutoff signal, and a wireless RF module is also installed in a home appliance and a gas valve such as a TV, an air conditioner, a light, and the like. By receiving the cutoff signal and the gas shutoff signal, the complicated cable is eliminated, and the power supply and gas valve of unnecessary home appliances are automatically cut off when the user leaves the room by the wireless device.

As a specific method of the wireless RF module, a Bluetooth device, which has recently been in the spotlight as a wireless interface technology between a computer and its peripheral device, is used. The transmission / reception frequency band uses a 2.4 GHz to 2.483 GHz band.

On the other hand, the room / vacancy recognition is recognized by installing a door sensor 150, a fingerprint reader, a key tag on the lock of the door, or when the user inserts a key into the lock to rotate in the direction that the door is locked, the door is recognized as a vacancy, Rotate in the open direction to recognize the room.

When the multifunctional temperature controller according to the present invention is connected to the central main computer and remotely controlled, the boiler can be started or stopped at once by changing the set temperature in the main computer according to the change of the room, vacancy, high season and low season, and season. . In the case of apartments, when all households have a temporary or long-term vacancy due to vacation or work, they can be managed separately for each room.

As an additional function of the thermostat of the present invention, it can be used for security functions such as monitoring the intruder of the household and the room by grasping the vacancy of the individual household and the guest room by the in-room / vacancy recognition sensor at the front of the apartment management office, the hotel or the condominium. have. If the vacancy is not currently used, it will automatically change to the lowest reference temperature mode. In winter, it is desirable to set the minimum room heating standard temperature within the range of 5 ℃ -19 ℃.

FIG. 14 shows that the gas leakage alarm of the gas leakage sensor 141 is input to the room temperature controller 100 and the operation / stop signal and the alarm signal are output to the boiler 160. The indoor temperature sensor 111 is built in the temperature controller 100, the heating water temperature is detected by the sensor 112 installed on the return side of the boiler and input to the CPU of the temperature controller, the temperature of the ondol structure is also a sensor ( 113 is detected and input.

In multi-unit buildings such as apartments, dormitories, hotels and condominiums, energy consumption can be reduced by more than 20% compared to conventional heating control devices by using the multifunctional temperature controller according to the present invention.

In addition, in the present design, the temperature controller and the main computer of each room are directly connected, so that the facility is simplified as compared with the existing information collecting panel and the gateway.

In addition, by connecting the air conditioner and TV valve of the home appliances such as the air conditioner and TV of each room through the wireless transmission / reception module, when the user leaves the room, the power and gas of the home appliances are controlled by the power and gas cutoff signal of the indoor temperature controller. Shut off the valve saves wasted power in the vacancy and prevents the risk of gas leakage.

Claims (8)

In the indoor temperature controller installed in each generation of the joint building to control the indoor temperature by comparing the indoor temperature and the set temperature input by the user, A room / vacancy recognition unit 150 for determining whether a user's room or vacancy is detected by detecting an operation state of the door lock device; A temperature sensor for sensing a temperature of the room and outputting the measured value as an analog temperature signal; A key input unit 130 for inputting and setting a desired room temperature of the user; An A / D converter converting the signal of the temperature detector into a digital signal and outputting the digital signal; In the case of occupancy of a room by receiving signals from the room / vacancy recognition unit, the A / D converter, and the key input unit, the former is compared with the temperature value received from the A / D converter and the temperature set by the key input unit. A control unit 180 for outputting a heating operation signal in the case of less than and outputting a heating stop signal in the opposite case, and outputting a heating stop signal in the case of vacancy; A heating facility operating unit 160 connected to the control unit to start or stop a heating facility according to a heating operation signal or a heating control signal; A display 190 connected to the control unit to display a current room temperature, a user set temperature, and a heating facility operating state; And An external memory 181 connected to the control unit to store a program and data necessary for a control operation and to provide a memory area necessary for program execution of the control unit; Multifunctional room temperature controller, characterized in that consisting of. According to claim 1, wherein the indoor temperature controller and the power supply of the home appliances in the room are each provided with a high-frequency wireless transceiver module wirelessly connected, if the room / room recognition unit is determined to be vacant high frequency wireless transmission of the room temperature controller Multi-functional indoor temperature controller, characterized in that for transmitting the power cutoff signal from the module to the high-frequency wireless receiving module of the home appliance, the home appliance receives the power off signal. The gas valve of claim 2, wherein the indoor temperature controller is wirelessly connected to a gas valve actuator including a high frequency wireless transmitting / receiving module, and is determined to be empty by the room / room recognition unit. Multi-functional indoor temperature controller, characterized in that for transmitting the gas shutoff signal to the high-frequency wireless receiving module of the actuator, the gas valve actuator receives the gas shutoff signal. The method of claim 1, wherein the room / vacancy recognition unit 150 is provided with a sensor for detecting the rotation state of the locking device embedded in the door, the vacancy when the lock is rotated in the direction locked by the key inserted into the lock Recognized as, multi-function room temperature controller, characterized in that it is recognized as a chamber when the lock is rotated in the opening direction. The method of claim 1, wherein the temperature detection unit is a first sensor 111 for measuring the convection temperature of the room, the second sensor 112 for measuring the temperature of the heating water and the third sensor 113 for measuring the temperature of the ondol structure. Multifunctional room temperature controller, characterized in that consisting of. The method of claim 5, wherein the controller 180 is measured and transmitted from the first sensor 111, the second sensor 112 and the third sensor 113 when the output signal of the occupancy / vacancy recognition unit is occupied. Among the temperature values, the lowest temperature value is compared with the temperature set by the key input unit 130, and if the former is less than the latter, the heating operation signal is output and the heating stop signal is output in the opposite case. When the temperature measured by the second sensor 112 is lower than the pre-programmable room heating minimum temperature, the heating operation signal is output, and in the opposite case, the heating stop signal is output. The multifunctional indoor temperature controller according to claim 6, wherein the indoor heating minimum temperature value is in a range of 5 ° C to 19 ° C. The multifunctional indoor temperature controller according to claim 1, wherein the indoor temperature controller is remotely connected to the main computer of the management room by an RS485 method.