KR920004727B1 - Multi-function controller and controlling method of boiler - Google Patents

Abstract

A power section (4) supplies power to a microprocessor (1), and the microprocessor (1) is connected to resistors (R35)(R36), a capacitor (C31) and an IC (U31). The IC (U31) is connected to the base of a transistor (Q31), and the emitter of the transistor (Q31) is connected to a tank circuit (T31), thereby forming a wired transmitting section (3). A receiving section (2) receives function selection signals or control signals from a wireless controller (100), and a temperature sensing section (8) is connected to the microprocessor (1). A temperature timer display section (5) displays the functions selected in accordance with the signals of the microprocessor (1). With the controller, the functions of the boiler can be controlled from within the room.

Description

Multi-function controller of boiler and multi-function control method of boiler using microcomputer

1 is a block diagram of the present invention for a radio controller, an indoor controller and a boiler main controller.

2 is a detailed circuit diagram of a radio controller in the present invention.

3 is a detailed circuit diagram of a power supply unit, a wired transmission unit, a temperature sensing unit, and an alarm unit of an indoor controller according to the present invention.

4 is a detailed circuit diagram of a temperature and timer display unit and a key input unit of an indoor controller according to the present invention.

5 is a detailed circuit diagram of a selection terminal and a low water level detection circuit of the boiler main controller in the present invention.

6 is a detailed circuit diagram of the flame detection and overheat cut-off circuit of the boiler main controller in the present invention.

7 is a detailed circuit diagram of a wired transmission unit in the present invention.

8 is a detailed circuit diagram of a temperature / flow sensor detection unit and a key input unit in the present invention.

9 is a detailed circuit diagram of a temperature / flow-flow unit and a function display unit in the present invention.

10 is a detailed circuit diagram of a power supply unit and a microcomputer reset in the present invention.

* Explanation of symbols for main parts of the drawings

100: wireless controller 200: indoor controller

300: boiler main key 1: microcomputer

2: receiver 3: wired transmitter

4: power supply part 5: temperature timer display part

6: Function control unit 7: Key input unit

8: temperature sensing unit 9: power supply

10: temperature / flow rate display unit 11: temperature control unit

12: season selector 13: safety cutout

14: sensor detection unit 15: boiler control unit

In particular, the present invention relates to a multifunctional controller of a boiler and a multifunctional control method of a boiler, which can accurately and safely control all functions of a boiler indoors using a microcomputer.

Conventional boilers have a controller attached to the boiler body, so in order to select or control all functions, the user has to go down to the boiler room and operate it. Also, the indoor controller is installed on or off depending on the room temperature. Because of this function, it was virtually impossible to monitor the condition of the boiler with the indoor controller or select other functions.

In addition, since the indoor controller needs about 4-10 wires for selecting and controlling functions between the main controller and the indoor controller, its configuration is very complicated and installation work is very difficult.

The present invention has been made to solve the problems and disadvantages of the prior art, in order to more accurately and safely control the function of the boiler, using a microcomputer to display the room temperature, the set temperature, the duration of the timer, selected functions, etc. At the same time, the indoor controller can select the functions such as indoor, outing, sleeping, hot water, timer, season selection, manual return, and the wireless controller that can remotely select the above functions by radio signal. The function and effect of the present invention can be accurately and safely controlled in the room according to the accompanying drawings.

First, FIG. 1 is a block diagram of the present invention, and includes a conventional radio controller 100, an indoor controller 200, and a boiler main controller 300. As shown in FIG. That is, the wireless controller 100 includes a transmitter and a key input unit, and the indoor controller 200 includes a microcomputer 1, a receiver 2, a wired transmitter 3, a power supply 4, and a temperature timer display unit ( 5), a function control unit 6, a key input unit 7 and a temperature sensing unit 8. The boiler main controller 300 includes a microcomputer 1, a wired transmission unit 3, a power supply unit 9, a temperature / flow rate display unit 10, a temperature control unit 11, a season selection unit 12, a safety cutoff unit ( 13), the sensor detecting unit 14 and the boiler control unit 15.

The boiler main control unit 300 is attached to the main body of the boiler so as to more accurately and safely control the function of the boiler. In addition, two lines were used to transmit the abnormality of the boiler to the indoor controller using the microcomputer, and the two lines select the function according to the signal supplied and transmitted to the indoor controller. The indoor controller 200 displays the indoor temperature, the set temperature, the timer running time, the selected function, and at the same time, selects a function such as indoor, outing, sleeping, hot water supply, timer season selection, alarm display, and manual return. . Although the wireless controller 100 has no display function, the function selection is the same as that of the indoor controller, and the signal transmitted from the wireless controller can be received by the indoor controller to select a function for the selection function.

Accordingly, FIG. 2 is a detailed circuit diagram of the radio controller in the present invention. The radio controller 100 includes a power generation circuit (OSC) and a light emitting diode composed of key metrics K1-K32, crystals (XC), and capacitors (C1, C2). Connect the base terminal of the transistor Q1 to the output terminal OUT of the microcomputer U1 to which the LED1 is connected, connect the light emitting diode LED2 to the collector terminal of the transistor AQ1, and connect the emitter terminal to the emitter terminal. Connect resistor (R2).

In this state, the power by the battery BAT is geometric, but the integrated circuit U1 operates using the signal generated by the crystal XC and the capacitor C2 as the fundamental frequency, and is operated by the key matrix K1-K2. Since the designated data is selected and matched with the function of the indoor controller, the corresponding data is output to the output terminal OUT of the integrated circuit U1 when the matching key is pressed, and the output data causes the transistor Q1 to conduct. As the light emitting diode LED2 emits light, an infrared signal from the light emitting diode LED2 is transmitted to the indoor controller 200.

In addition, in order to avoid confusion between other products and the transmission signal, a unique number is assigned to the CUSTOM SELECTOR.

으로 전위를 낮춘후 마이컴에 입력하면 경고 이상유무, 종류를 파악하여 알람부에서는 경보음을 발한다.3 is a detailed circuit diagram of a power supply unit, a wired transmission unit, a temperature sensing unit, and an alarm unit of an indoor controller according to the present invention. The constant voltage integrated circuit U41 is connected to an input terminal INPUT and an output terminal of the diode D41. The power supply unit 4 is configured by connecting the constant voltage integrated circuit U41 to the output terminal of the diode D41, and the output terminal of the constant voltage integrated circuit U41 is connected to the power terminal of the microcomputer 1. When the DC voltage signal sent from 300 is applied to the input terminal INPUT, the DC voltage signal is maintained at a constant voltage through the diode D41 and the constant voltage integrated circuit U41. In addition, the power supply of the constant voltage integrated circuit U41 is supplied to the microcomputer and each circuit, and a flow rate alarm and a safety cutoff (low water level overheating alarm) signal sent from the main controller are received as a potential difference of the DC voltage, thereby providing resistance.

If the potential is lowered and input into the microcomputer, the alarm unit detects whether there is an abnormality or type of alarm and emits an alarm sound.

On the other hand, the integrated circuit U31 to which the oscillation circuit OSC31 composed of the resistors R35 and R36 and the capacitor C31 is connected to the output terminal of the microcomputer 1 is connected to the output terminal of the integrated circuit U31. A wired transmitter 3 configured by connecting a resistor R37 and a base terminal of the transistor Q31 and connecting a tank circuit T31 composed of a resistor R and a coil L to an emitter terminal of the transistor Q31. When the function is selected in the indoor controller, a signal corresponding to the selected function is output from the microcomputer as a parallel binary data signal, and the output signal is converted into a serial decimal data signal by the integrated circuit U31 and transmitted. The first transmission signal is a function selection channel, and the second transmission signal is alternately transmitted by seasonal selection.

The signal transmitted as described above is amplified by the current through the resistor R37 to the transistor Q31 and transmitted to the main controller through the resistor R and the coil L constituting the resistor R38 and the tank circuit T31. . In the figure, the resistors R36 and R37 and the capacitor C31 are resistors and capacitors for self-oscillation of the integrated circuit U31.

In addition, the integrated circuit U3 connected to the oscillation circuit composed of a resistor and a capacitor is connected to the microcomputer 1, and the piezo P1 is connected to the output terminal of the integrated circuit U3. When the microcomputer determines the flow rate information by the input DC power difference signal, the trigger signal is applied to the melody integrated circuit U3 to send a cricket signal to emit a cricket sound to the piezo P.

The temperature sensor 8 connects the resistor R82 and the sensor S81 in series with the output terminal of the light receiving modules N81 received according to the infrared light emitting output signal from the wireless controller 100, and simultaneously the resistance ( R83) and the sensor S82 are connected in series, and each output terminal of these resistors R82 and R83 is connected to the microcomputer 1, and is comprised.

The wireless controller receiver detects an infrared signal transmitted from the wireless controller 100 using an infrared sensor as one module, amplifies the signal, and inputs a noise filter to the microcomputer 1. Thus, the microcomputer 1 grasps the received signal and executes it immediately. The temperature sensor is a sensor (S81) (S82) that can be installed two sensors (S81) is an indoor temperature sensor, the sensor (S82) is an outdoor temperature sensor can perform a temperature proportional control function.

The indoor temperature sensor S81 inputs the current supplied through the bias resistor R82 to the microcomputer by changing the potential according to the temperature. At this time, the microcomputer judges whether the burner is operated by comparing with the preset temperature, sends the signal to the main controller, and also checks the disconnection of the sensor. The outdoor temperature sensor S82 is installed outdoors as a temperature proportional control function and automatically changes according to the temperature already set by inputting the current supplied through the resistor R83 to the microcomputer 1 according to the external temperature. Set the selection. In addition, the proportional control function is automatically lost when the outdoor temperature sensor S82 is not installed.

4 is a detailed circuit diagram of a temperature and timer display unit and a key input unit of an indoor controller. The input unit comprising switches SW1 to SW24 is connected to the output terminal of the microcomputer 1 and the transistors Q1 to Q6 are connected to the output terminal of the input unit. Connects the display terminals FND1-FND4 to the collector terminals of the transistors Q1-Q4, and connects the light emitting diodes LEDE-9 (LED10-16) to the collector terminals of the transistors Q5-Q6. Input terminal of this indicator (FND1-FND4) to the microcomputer 1, while the integrated circuit U4 is connected to the output terminal of the microcomputer 1, and the output terminal of the integrated circuit U4 Configure by connecting to the input.

In the circuit configured as described above, the indicators FND1-FND4 and the light emitting diodes LED3-16 are connected in parallel and supplied from the microcomputer in seven successive phases, and thus are turned on / off in the order of the transistors Q1-Q6 to light up the indicator. Thus, the indicators FND1-FND2 indicate the temperature, the indicators FND3-FND4 indicate the time, and the light emitting diodes LED3-LED16 indicate the selected function. The key input unit is a key input unit that selects functions such as indoor temperature setting, time reservation, indoors, going to bed, hot water supply, season selection, and manual return using a multiplexer method.

As described above, the circuit operation for the indoor controller is operated as described above, and the other operation sequence is sequentially detected by the microcomputer's program and operated according to the detected contents. The operation procedure according to the detection at this time will be described as follows.

When the power is turned off at first, it detects the selected functions in the order of indoor, temperature proportional control, sleep, going out, hot water, manual return, timer, season selection, and setting order. It is detected in ascending and descending order.

Next, if the function selection signal is sent by checking whether the radio controller is transmitting the function selection signal, check the unique number and the function selection signal and operate the indoor controller according to the function. In the above situation, when the timer is scheduled, the alarm signal transmitted from the main controller is detected while the operation is in progress, and if it is normal, safety cutoff, or flow alarm, an alarm is issued.

In addition, it detects the current temperature, displays the temperature, and sends the boiler to the main controller in comparison with the preset temperature. In addition, if the current temperature is above or below the upper and lower limits of the already set temperature, it is regarded as a short-circuit break of the sequence, and the indicator FND-2 is displayed as "-" to indicate whether the sequence is defective.

5 is a detailed circuit diagram of the selection terminal of the main controller of the boiler and the low water level detection circuit, wherein the switch SW1 is a function of directly selecting a season during a season selection or a function of shifting as one key. The switch SW2 is a switch for selecting a function for selecting a seasonal selection at the indoor controller or directly at the main controller. The switch SW3 is used to select when the flow rate is displayed or when the flow rate is not used.

A comparison amplifier OOM1 consisting of a resistor R1-R4 capacitor C1 comparison amplifier OP AMP1 is connected between the constant voltage power supply terminal VDD and the ground, and a diode is connected to an output terminal of the comparison amplifier OP AMP1. D1) is connected and the capacitor (2) resistor R6 is connected to the output terminal of the diode D1, and the resistor R6 is composed of resistors R7-R11 and comparative amplifiers (OP AMP2) at the output terminals. The low level detector configured by connecting the comparison amplifier OOM2 and connecting the output terminal of the comparison amplifier OP AMP2 to the microcomputer 1 connects the comparison amplifier OP AMP1 to the resistor R4 and the capacitor C1. When the square wave is oscillated by the oscillation circuit using the hysteresis of the resistor R3 at the reference voltage of the charge and discharge and the resistors R1 and R2 and is pointed at the boiler, the square wave is input to the low water level sensor through the resistance of the water and the diode D1. ) And the capacitor C2 are rectified and input to the non-inverting (+) terminal of the comparative amplifier OP AMP2.

이 그의 비반전(+)단자와 전압보다 낮아 상기 증폭기(OP AMP2)에서는 하이(HIGH)신호가 출력된다. 만약 수위가 낮아져 물의 저항이 없어졌을 경우 비교증폭기(OP AMP2)의 비반전(+)단자의 전압이 그의 반전(-)단자의 기준 전압보다 낮아져 상기 비교증폭기(OP AMP2)의 출력이 로우(LOW)신호가 되므로 마이컴은 경보상태를 감지하게 된다.At this time, reference voltage of inverting (-) terminal of comparative amplifier (OP AMP2)

This non-inverting (+) terminal and the voltage is lower than the amplifier (OP AMP2) outputs a high signal. If the water level is lowered and the resistance of the water disappears, the voltage of the non-inverting (+) terminal of the comparative amplifier OP AMP2 is lower than the reference voltage of the inverting terminal of the comparative amplifier OP AMP2, so that the output of the comparison amplifier OP AMP2 is low. ), The microcomputer detects the alarm condition.

6 is a flame detection and overheat cut-off circuit of the main controller of the boiler to detect the abnormality of the burner as flame, and the input / output terminal of the photoconductive cell CD6 connected between the constant voltage power supply terminal VDD and the ground to detect the flame Connect the capacitor C1 between them, connect the reverse diode D1 to the input terminal of the capacitor C1, and connect the inverters INT1 and INT2 to the output terminals of the diode D1. 1).

Meanwhile, the resistor R1 and the diode D2 are simultaneously connected between the constant voltage power supply terminal VDD and the output terminal of the diode D2. In the circuit configured as described above, when the constant voltage power supply from the constant voltage power supply terminal VDD is supplied to the photoconductor cells cds through the resistor R1 and the diode D1, the photovoltaic cells cds are set to several M when there is no light. As a result, the input of the inverter INT1 becomes a HIGH signal.

However, when the photoconductive cell cds detects a flame, the deterioration value of the photoconductive cell rapidly drops, and the input of the inverter INT1 becomes a LOW signal, which is inverted to high again by the inverter INT2. It is entered into the microcomputer. Thus, the microcomputer performs a safety blocking function. FIG. 7 is a detailed circuit diagram of the wired transmission unit. The reverse diode D1 is connected to the constant voltage capacity terminal VDD, and the inverters INT1, INT2, and INT3 are connected to the output terminals of the diode D1. And connect the decoder (US) to the output terminal of this inverter (INT4).

단자에 콘덴서(C1), (C4), 코일(L1)으로 구성된 탱크회로(T1)를 연결함과 동시에 트랜지스터(Q1)의 베이스단자에 연결하고 이 트랜지스터(Q1)의 베이스단자에 연결하고 이 트랜지스터(Q1)의 콜렉터단자에 저항(R5)을 연결하고, 이 저항(R5)의 출력단자에 트랜지스터(Q2), (Q3)의 베이스단자와 동시에 연결하고 이 트랜지스터(Q2)의 골렉터단자에 역방향 다이오우드(D2)를 연결하여 마이콤(10)에 연결한다.MRS on the other hand

Connect the tank circuit T1 composed of the capacitors C1, C4, and coil L1 to the terminal, connect it to the base terminal of the transistor Q1, and connect it to the base terminal of the transistor Q1. The resistor R5 is connected to the collector terminal of Q1, the output terminal of the resistor R5 is simultaneously connected to the base terminals of the transistors Q2 and Q3, and is reversed to the collector terminal of the transistor Q2. Connect the diode (D2) to the microcomputer (10).

At the same time, the collector terminal of transistor Q3 connects reverse diode D4 and the microcomputer 1 to the output terminal of reverse diode D4. In this state, the power supply of the indoor controller is supplied through the integrated circuit (U4), and when the safety cutoff, low water level, and overheating information are input to the microcomputer, the transistor Q3 is turned on to lower the supply power supply.

In the case of the low flow rate diesel fuel, the safety controller and the low flow rate information are judged by the indoor controller by supplying the potential of the power supply even lower than the safety blocker.

단에 입력되어 콘덴서(C1)(C4)와 코일(L1)로 된 탱크회로(T1)와 콘덴서(C3)을 통해 인버터(INT1)(INT2)로 증폭되고 인버터(INT3)(INT4)은 슈미트회로로서 수신신호의 파형을 정형시킨후 디코우더(U5)에 입력시킨다. 그리하여 상기 디코우더(U5)는 입력신호를 판단하여 급탕, 외출등 선택된 신호를 마이컴에 입력시킨다.Received signal is MRS

It is input to the stage and is amplified by the inverters INT1 and INT2 through the tank circuit T1 and the capacitor C3 consisting of the capacitors C1 and C4 and the coil L1, and the inverters INT3 and INT4 are Schmitt circuits. As a result, the waveform of the received signal is shaped and input to the decoder U5. Thus, the decoder U5 determines the input signal and inputs the selected signal such as hot water supply or outing to the microcomputer.

8 is a detailed circuit diagram of the temperature / flow sensor detecting unit and the key input unit. The capacitor C3 and C4 are connected in parallel between the input / output terminals of the temperature sensing thermistor TH1 and the AC / DC converter U6 at the same time. The capacitor C6 and C7 in parallel between the input and output terminals of the flow sensor S1, and the resistor R9 between the input terminals of the flow sensor S1. Input to converter U6.

In addition, a comparative amplifier (COM1) consisting of a resistor (R2-R6) and a comparative amplifier (OP AMP1) is connected to the input terminal of the resistor (R5) connected to the input terminal of the temperature sensor, thermistor (TH1). And a transistor (Q1) connected to the output terminal of the comparison amplifier (OP AMP1), a single-switch transistor (Q2) connected to the output terminal of the transistor (Q1), and the key matrix composed of the switches (SW1-SW8) The microcomputer 1 is inputted, and the output terminal of the drift / direct current converter U6 is also inputted to the microcomputer 1.

In the circuit configured as described above, the temperature sensing inputs the current supplied to the resistor R7 by the thermistor TH1 to the two-channel AC / DC converter integrated circuit U6 according to the temperature change. This integrated circuit U6 is then output as a binary digital signal and input to the microcomputer. However, the capacitors C3, C4, and C5 are intended to remove noise and reduce voltage fluctuations.

Since the flow rate changes in the resistance value according to the change in the flow rate detected by the flow rate sensor S1, when the divided value with the resistor R8 is input to the A / D converter integrated circuit U6, the output is input to the microcomputer. The value is then displayed by the display portion of FIG. The key input unit is a matrix type switch (SW1-SW8) and is used for seasonal selection.

단자에 인가되는 전압이 비반전

단자에 인가되는 기준전압

보다 낮아져 출력은 하이(HIGH)신호로 된다. 이때 트랜지스터(Q1)는 온이되어 팬구동용 트랜지스터(Q2)(제10도 참조)를 억제하여 릴레이의 구동을 막는다.In addition, the overheat protection function of the safety device is detected and displayed by the temperature sensor. However, when the temperature exceeds the maximum setting temperature, the op amp is reversed.

Non-inverting voltage applied to the terminal

Reference voltage applied to the terminal

Lower, the output becomes a HIGH signal. At this time, the transistor Q1 is turned on to suppress the fan driving transistor Q2 (see FIG. 10) to prevent driving of the relay.

In addition, when the microcomputer is in normal state, when the microcomputer sends a pulse and the pulse transmitted is rectified by the diode D2 through the capacitor C1 and applied to the base terminal of the transistor Q2, the transistor Q2 is turned on and the output is low. (LOW) signal. However, when the microcomputer is destroyed and there is no pulse, the transistor Q2 is inverted and transmits a high signal, thereby turning on the transistor Q1 through the comparison amplifier OP AMP1.

Therefore, by suppressing the driving of the relay by suppressing the single-drive transistor Q2 of FIG. 10, the operation of the external controller is suppressed and safely shut off.

9 is a temperature, flow rate display section and a function display section, each of which is a circuit for displaying the low-level overheating safety cutoff, seasonal selection, etc. of the temperature and flow rate alarm function input to the microcomputer from each sensor.

The temperature flow rate display part is composed of the resistors (R1-R9) oil indicator (FND1-FND3), temperature indicators (FND4, FND5), transistors (Q1-Q6), and light emitting diodes (LED1-LED9). The diode D1 and the light emitting diode LED1 are connected to the low level output terminal of 1), the transistor Q7 is connected to the output terminal of the diode D1, and the AC input power source is connected to the collector terminal of the transistor Q7. The relay RL1 by (AC) and the diode D7 connected in parallel with this relay are connected and configured to display the overheat indication and the safety cut-off season selection lamp in the same manner.

By adopting the dynamic drive method, the indicators FND1-FND3 display the flow level up to 180 l and the indicators FND4, FND5 display the temperature 0-99 °. In addition, transistors Q1, Q2,... (Q3) turns on sequentially to minimize power consumption and simplify the configuration.

On the other hand, a circuit composed of transistors Q7-Q10, diodes D1-D10, and relays RL1-RL4 and connected to the microcomputer V1 is a control circuit of a device externally connected. When the transistor Q1 is turned on and the relay RL1 is operated, the AC voltage is supplied to the circulation pump through the relay contact, and the circulation pump is operated normally. The relay RL2-RL4 uses the pen, ignition, The oil pump is controlled.

FIG. 10 is a circuit for resetting the microcomputer in case of power supply and low voltage. The transformer T1 is connected to the AC power input terminal and diodes D1-D4 and smoothing capacitor C1 are connected to the secondary coil of the transformer. The base terminal of the transistor Q1 is connected to the output terminal of the constant voltage integrated circuit U8 of the power supply unit composed of the constant voltage integrated circuit U8, and the diode D9 is connected to the collector terminal of the transistor Q1. The base terminal of the transistor Q2 is connected to the output terminal of the diode D9, and the capacitors C5 and C6 are connected between the emitter terminal and the collector terminal of the transistor Q2 and input to the microcomputer 1. On the other hand, the collector terminal of the transistor Q2 and the secondary coil of the transformer T1 are connected to a power supply unit consisting of a diode D5-D8, a capacitor C2, and a constant voltage integrated circuit U9.

In this state, when AC power is applied to the primary coil of the transformer T1, the down power is output to the secondary coil. The downed power is rectified by the diodes D1-D4, smoothed by the capacitor C1, and supplied to the microcomputer and each circuit by the constant voltage integrated circuit U8.

In addition, in order to prevent the microcomputer 1 from malfunctioning when the potential is low, the transistor Q1 has a lower base potential than its emitter potential when the power is supplied, thereby turning on the transistor Q1.

Accordingly, the collector terminal of the transistor Q1 is applied with the same potential as its emitter potential, the base potential of the transistor Q2 is higher than its meter potential, so the transistor Q2 is turned off, and the collector potential of the transistor Q2 is turned off. Goes low through resistor R5. However, when the input voltage decreases, the transistor Q1 is turned off because the potentials of the transistor terminal and the base terminal of the transistor Q1 are the same, and the potential of the collector thereof is inverted to the low state through the resistor R6.

Therefore, the potential of the base terminal of the transistor Q2 is lower than the emitter potential so that the transistor Q2 is turned on and its collector potential is the emitter potential to reset the micom, thereby preventing the microcomputer 1 from malfunctioning. do.

On the other hand, the voltage down from the secondary side of the transformer T1 is rectified by the diodes D5-D8 and the rectified voltage is maintained at a constant voltage in the constant voltage integrated circuit U9 through the capacitor C2, thereby relaying and controlling the indoor controller. Power is supplied.

As described above, the main controller operates a circuit as described above, and the operation sequence thereof is sequentially operated by a microcomputer program as follows.

In other words, when the power is turned on, the alarm sounds for 2 seconds and the initial season is set to the magnetic path, then the presence or absence of the flow rate function is selected, whether to select the season in the indoor controller or the main controller, and the multi-season selector Select whether to use the key or single key and then read the boiler temperature. At this time, the burner and circulation pump operate or stop according to the set temperature by season selection.

If the temperature sensor is higher or lower than the upper and lower limit set in the microcomputer, the sensor is regarded as disconnection or fault, and the indicator (FAN4-5) is displayed as "-" and the burner stops. And whether the signal transmitted from the indoor controller is indoor, sleep, going out, hot water, or? Which season is your choice? Check and check whether burner is working. If the burner operation signal is received, the ignition is operated for a certain period after the fan is operated. When the ignition has been in operation for half a period, operate the oil pump for a certain period of time and ignite it, and then check whether it was ignited by the photoconductor cell (CDS) and continue to operate when it is ignited. Stop it. Reference numeral U7 is an alarm integrated circuit.

As described above, the present invention has an advantage of more precisely and safely controlling all functions of the boiler indoors by using a microcomputer.

Claims (10)

The transistor Q1 is connected to the output terminal OUT of the microcomputer U1 to which the key matrix K1-K32, the oscillation circuit OSC composed of the crystal XC and the capacitors C1 and C2, and the light emitting diode LED1 are connected. ), The light emitting diode (LED2) is connected to the collector terminal of the transistor (Q1), and the resistor (R2) is connected to the emitter terminal of the transistor (Q2) to provide the function and control signal of the boiler. A radio controller of a boiler, characterized in that configured to transmit as a radio signal. A resistor R35 and R36 and a condenser (a power supply unit 4) in which an output terminal is connected to a power terminal of the microcomputer 1 through a diode D41 connected to an input terminal INPUT, and an output terminal of the microcomputer 1. The integrated circuit U31 to which C31 is connected is connected, the base terminal of the transistor Q31 is connected to the output terminal of the integrated circuit U31, and the tank circuit T31 is connected to the emitter terminal of the transistor. Connects the resistor R82 and the sensor S81 in series to the output terminal of the light receiving module M81 of the receiver 2 receiving the function selection or control path from the wired transmitter 3 and the wireless controller 100 At the same time, the resistor R83 and the sensor 802 are connected in series, and one side of the resistors R82 and R83 is connected to the microcomputer 1 of the temperature sensing unit 8 and the microcomputer 1 of the microcomputer 1. The temperature timer display section 5 for displaying the temperature and the selected function by the signal, and the microcomputer 1 to select various functions. Wooded key input section (SW1-SW24) is configured waro indoor control in the boiler, characterized in that to control the function of the boiler in a room. Wired transmission unit 3 of the indoor controller 200 and the wired transmission unit 3 connected to each other by two lines to transmit a function selection and control path, the microcomputer 1, the power supply unit 9, and temperature / It is composed of flow rate display section 10, temperature control section 11, season selection section 12, safety cutout section 13, predecessor detecting section 14 and boiler control section 15 to directly control the boiler and select the function. The main controller of the boiler formed in the boiler to help. The indoor controller 200 and the main controller 300 of the boiler is a multi-function controller of a boiler using a microcomputer, characterized in that the connection is configured by two lines connecting each wired transmission unit (3). The wireless controller 100 which transmits a function selection signal as a wireless signal to control the indoor controller 200, and the indoor, outing, sleeping, hot water supply, other functions by the function selection signal from the wireless controller 100 or manual operation. The indoor controller 200 displaying the indoor temperature, the set temperature, the running time of the timer, the selected function, etc., and the main controller directly controlling all the functions of the boiler, while selecting functions such as season selection and manual return. Multi-function controller of the boiler using a microcomputer, characterized in that consisting of 300 and. Boiler characterized in that the function of the function selected by the key matrix (K1-K32) configured in the wireless controller 100, the light emitting diode (LED2) is emitted to send the infrared signal to the indoor controller () to select the function Wireless control method. Detects the selected functions in the order of indoor, temperature proportional control, sleep, going out, hot water supply, manual return, timer, and season selection by the operation control program built in the microcomputer 1 of the indoor controller 200. Indoor control method of the boiler, characterized in that by detecting the time of the falling of the timer, the rising and falling of the set temperature, descending in order to send the boiler operation to the boiler main controller (300). The operation control program built in the microcomputer 1 of the main controller 300 and the control signal from the indoor controller 200 sequentially perform functions such as the presence / absence of the flow rate function and the seasonal selection to operate the boiler. The main control method of the boiler. Through the two lines connecting the wired transmitter (3) of the indoor controller 200 and the wired transmitter (3) of the main controller 300 to control the operation of the boiler by mutually specifying various function selection signals and control signals Multi-function control method of the boiler using a microcomputer. By selecting a function selection signal from the wireless controller 100 or manual operation, the functions such as indoors, going to bed, hot water, burning, season selection, manual return, etc. Multifunction of the boiler using the microcomputer, characterized in that the selection and control of various functions of the boiler by directly controlling the function selection signal from the indoor controller 200 to display the selected function or the main controller 300 formed in the boiler Control method.

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