CN217402673U

CN217402673U - Intelligent indoor heating temperature controller

Info

Publication number: CN217402673U
Application number: CN202221200023.3U
Authority: CN
Inventors: 周新征; 周世纪; 周德
Original assignee: Shenzhou Tiandi Shanxi Intelligent Environmental Protection Technology Co ltd
Current assignee: Shenzhou Tiandi Shanxi Intelligent Environmental Protection Technology Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-09-09
Anticipated expiration: 2032-05-19

Abstract

The utility model relates to an intelligent indoor heating temperature controller, including indoor radiator, the one end of indoor radiator is equipped with the inlet tube, and the other end is equipped with the outlet pipe, be provided with intelligent control valve on the inlet tube, intelligent control valve includes the shell, be equipped with main control circuit board, angle sensor, motor, case and valve body in the shell; the lower end of the valve core is arranged in the valve body and used for controlling the valve body to be opened and closed, and the main control circuit board comprises a valve opening control module, a temperature detection module, a power supply module, a Bluetooth communication module, a single chip microcomputer, a clock module and a programming port; the utility model discloses an intelligence indoor heating temperature controller, the user can set up the temperature of different time quantum on cell-phone APP, through temperature controller calculation control, both can resources are saved, low carbon reduces discharging, can be for user's saving cost again.

Description

Intelligent indoor heating temperature controller

Technical Field

The utility model relates to an automatic control field, concretely relates to intelligence indoor heating temperature controller.

Background

The heating system is a central heating system, which uses a pipe to transport the steam or hot water generated by a boiler to an indoor radiator, and then the steam or hot water is sent to the boiler to increase the room temperature and then flows back to the boiler to be reheated and circulated. At present, the heating adopts a central heating mode, the indoor temperature of residents is uneven, and the cost is high. The room temperature near the heat exchange station is too high, and the room temperature far from the heat exchange station is too low, so that the temperature of the residents cannot be accurately adjusted. For the time like school cold and fake and closing of shopping malls, the supply of warm air causes the waste of resources. In summary, aiming at the problems of uneven indoor heating, high heating cost and the like in winter in the north, an intelligent indoor heating temperature controller is needed to automatically adjust the temperature, so that the problems are avoided.

Disclosure of Invention

The utility model aims at providing an intelligence indoor heating temperature controller, the user can set up the temperature of different time quantum on cell-phone APP, through temperature controller calculation control, both can resources are saved, low carbon emission reduction can be for user's saving cost again.

The technical scheme of the utility model as follows: an intelligent indoor heating temperature controller comprises an indoor heating radiator, wherein one end of the indoor heating radiator is provided with a water inlet pipe, the other end of the indoor heating radiator is provided with a water outlet pipe, an intelligent control valve is arranged on the water inlet pipe and comprises a shell, and a main control circuit board, an angle sensor, a motor, a valve core and a valve body are arranged in the shell; the lower end of the valve core is arranged in the valve body and used for controlling the valve body to be opened and closed, the driving shaft of the motor is connected with the upper end of the valve core, the angle sensor is arranged on the motor, the main control circuit board is in signal connection with the angle sensor and comprises a valve opening control module, a temperature detection module, a power supply module, a Bluetooth communication module, a single chip microcomputer, a clock module and a programming port; the power module is electrically connected with the valve opening control module, the temperature detection module, the Bluetooth communication module, the single chip microcomputer, the clock module and the programming port, and the valve opening control module, the temperature detection module, the Bluetooth communication module, the clock module and the programming port are all in signal connection with the single chip microcomputer.

Preferably, the upper part of the outer shell is provided with an openable upper cover.

Preferably, the single chip microcomputer U4 is a single chip microcomputer IAP15W4K61S4, a pin VCC of the single chip microcomputer U4 is a power supply end of the single chip microcomputer, and a pin GND is grounded.

The power supply module comprises a power switch S1, a power supply processing chip U2, a filter inductor L1, a high-precision voltage stabilizer U3, a filter capacitor C3 and a filter capacitor C4, wherein a pin 6 of the chip U2 is divided into two paths, one path is connected with the cathode of a diode D2, the other path is connected with a pin 1 of a power supply processing chip U2 through a resistor R13, the anode of a diode D2 is connected with the anode of a power supply BT1 through a power switch S1 to supply power to the power supply processing module,

pins

7 and 8 are connected with the pin 1, the anode ends of capacitors C3 and C4 are respectively connected with the two sides of a diode D2, the cathode end of the diode D2 is grounded, a pin 6 of the power supply processing chip U2 is grounded, a pin 3 is grounded through a capacitor C5, the pin 2 is connected with one end of the filter inductor L1, the other end of the filter inductor L35 1 is connected with the voltage input end of the high-precision voltage stabilizer U3, the diode D3 is reversely connected with the pin 2 and the ground, and the serially connected with a resistor R14, R15, and the capacitor C4 are connected with the ground, C7 is connected in parallel and is connected to the other end of the filter inductor L1, a pin 5 is connected between a resistor R14 and a resistor R15, the output end of the high-precision voltage stabilizer U3 provides a 5V power supply for the whole machine, and a capacitor C8 is connected in parallel to the output end and the grounding end of the high-precision voltage stabilizer U3.

The chip U2 is a chip MC 34063.

The valve opening control module comprises a valve control motor E1, a motor drive module M1, a valve angle sensor R7 and an operational amplifier U1A, a pin 1 of the motor drive module M1 is connected with a switch, a pin 2 is grounded, a pin 3 is connected with the anode of the valve control motor E1, a pin 4 is connected with the cathode of the valve control motor E1, a pin 5 is connected with a pin P23 of a chip U4, a pin 6 is connected with a pin P11 of a chip U4, a pin 7 is connected with a pin P47 of a chip U4, a pin 8 is grounded, one end of the valve angle sensor R7 is connected with a power supply VCC, the other end of the valve angle sensor is connected with GND, a center sliding end of the valve angle sensor passes through a current-limiting resistor R8 and then is connected with an input positive end of the operational amplifier U1A, an input negative end of the operational amplifier U1A is connected with an output end of the operational amplifier U1A, and an output end of the operational amplifier U1A is connected with a pin P12 of a U4.

The temperature detection module comprises a temperature sensor R9, a constant current source U1 and an operational amplifier U1B, wherein one end of the temperature sensor R9 is connected with a pin 1 of the constant current source U1, the other end of the temperature sensor R9 is grounded, a pin 2 of the constant current source U1 is connected with an input positive end of the operational amplifier U1B through a resistor R10, a pin 3 is connected with VCC, input negative ends of the operational amplifier U1B are respectively connected with two paths, one path is grounded through a resistor R11, the other path is connected with an output end of the operational amplifier U1B through a resistor R12, and an output end of the operational amplifier U1B is connected with a pin P13 of the singlechip U4.

The Bluetooth communication module is a Bluetooth communication module M2, a pin VCC of the Bluetooth communication module M2 is connected with a power supply VCC, a pin GND is grounded, a pin TXD and a pin RXD are respectively connected with a pin P36/RXD _2 and a pin P37/TXD _2 of the singlechip U4, and the pin TXD and the pin RXD are connected with the power supply VCC through pull-up resistors R16 and R17.

The clock module comprises a clock chip U5 and a crystal oscillator X2, wherein a pin 1 of the clock chip U5 is connected with a power supply VCC, a pin 2 is connected with one end of the crystal oscillator X2, a pin 3 is connected with the other end of the crystal oscillator X2, a pin 4 is grounded,

pins

5, 6 and 7 are respectively connected with pins P32, P33 and P34 of the single chip microcomputer U4, the

pins

5, 6 and 7 are respectively connected with pull-up resistors R22, R21 and R20, a pin 8 is connected with the anode of the storage battery BT2, and the cathode of the storage battery BT2 is grounded.

The programming port comprises a wiring terminal J1, a pin 1 of the wiring terminal J1 is connected with a power supply VCC, a pin 2 and a pin 3 are respectively connected with pins P31/TXD and P30/RXD of the singlechip U4 through pull-up resistors R19 and R18, and a pin 4 is connected with GND.

The utility model discloses an intelligence indoor temperature controller, can set up indoor temperature through cell-phone APP timesharing, intelligence indoor temperature controller carries out PID operation to the indoor temperature value of gathering, target temperature value and output percentage, calculate the percentage that next time point should be exported, then export corresponding percentage by intelligent indoor temperature controller's output control port, under the promotion of motor drive axle, gear motor control angle sensor's rotation, and then the aperture of control valve core, thereby guaranteed that indoor temperature reaches the setting value, can turn down or close inlet pipe valve opening when indoor does not need the heating installation, avoid thermal waste; when the indoor temperature is high, the opening degree of the valve can be adjusted to supply enough heat, so that resources can be saved, low carbon emission can be reduced, and cost can be saved for users.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the intelligent control valve of the present invention;

fig. 3 is a schematic circuit diagram of the present invention.

In the figure: 1-a temperature sensor; 2-a housing; 3-water inlet pipe; 4-an intelligent control valve; 5-indoor radiator; 6-a water outlet pipe; 7-an intelligent control valve upper cover; 8-a master control circuit board; 9-an angle sensor; 10-a motor; 11-motor drive shaft; 12-a valve core; 13-valve body.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention;

as shown in fig. 1-3, an intelligent indoor heating temperature controller comprises an indoor heating radiator 5, one end of the indoor heating radiator 5 is provided with a water inlet pipe 3, the other end is provided with a water outlet pipe 6, the water inlet pipe 3 is provided with an intelligent control valve 4, the intelligent control valve 4 comprises a shell 2, and a main control circuit board 8, an angle sensor 9, a motor 10, a valve core 12 and a valve body 13 are arranged in the shell 2; the lower end of the valve core 12 is arranged in the valve body 13 and used for controlling the valve body 13 to be opened and closed, the motor driving shaft 11 of the motor 10 is connected with the upper end of the valve core 12, the angle sensor 9 is arranged on the motor 10, the main control circuit board 8 is in signal connection with the angle sensor 9, and the main control circuit board 8 comprises a valve opening control module, a temperature detection module, a power supply module, a Bluetooth communication module, a single chip microcomputer, a clock module and a programming port; the power module with valve opening control module, temperature detection module, bluetooth communication module, singlechip, clock module and programming port electricity are connected, valve opening control module, temperature detection module, bluetooth communication module, clock module and programming port all with singlechip signal connection.

Further, an openable upper cover is arranged at the upper part of the outer shell.

Further, the single chip microcomputer U4 is a single chip microcomputer IAP15W4K61S4, a pin VCC of the single chip microcomputer U4 is a power supply end of the single chip microcomputer U4, and a pin GND is grounded; firstly, the VCC end of a singlechip U4 is a power supply end of a singlechip U4, the power supply end is provided by a power supply circuit, GND is connected with a ground wire of a power supply, after voltage division of resistors R1 and R2, the voltage is filtered by a filter capacitor C1 and then sent to a pin P10 of the singlechip U4, the pin P10 of the singlechip U4 uses an A/D sampling function to detect the current battery capacity and is transmitted to a mobile phone APP through a Bluetooth interface, when the voltage of a lithium battery is too low, the singlechip U4 sends an alarm signal to the mobile phone through a Bluetooth communication circuit to prompt that charging is needed, and the pins P23/PWM5, P11 and P47 of the singlechip U4 are connected to a control end of an M1 driving module of a valve opening control circuit to control the starting, stopping and the rotating direction of a valve motor. A pin P12 of the single chip microcomputer U4 is a valve opening detection port, collects signals of an angle sensor R7 and is used for judging the accurate opening of the valve. Pin P13 of the single chip microcomputer U4 is connected to a temperature detection circuit for obtaining a temperature signal. The pin P22 of the single chip microcomputer U4 is connected with a D1 light emitting diode, and when the electric quantity is too low, the pin twinkles to prompt a user to charge or replace a battery in time. The pins P37/TXD _2 and P36/RXD _2 are serial interfaces, are connected with the Bluetooth communication module M2, and communicate with the mobile phone through the Bluetooth communication module M2. The pins P30 and P31 are connected with the programming port and used for programming the single chip microcomputer.

The power supply module comprises a power switch S1, a power supply processing chip U2, a filter inductor L1, a high-precision voltage stabilizer U3, a filter capacitor C3 and a filter capacitor C4, wherein the power supply processing chip U2 is a chip MC 34063; the pin 6 of the power supply processing chip U2 is divided into two paths, one path is connected with the cathode of the diode D2, the other path is connected with the pin 1 of the power supply processing chip U2 through the resistor R13, the anode of the diode D2 is connected with the anode end of the power supply BT1 through the power switch S1 to supply power to the power supply processing module, the

pins

7 and 8 are connected with the pin 1, the anode ends of the capacitors C3 and C4 are respectively connected with two sides of the diode D2, the cathode end is grounded, the pin 4 of the power supply processing chip U2 is grounded, the pin 3 is grounded through the capacitor C5, the pin 2 is connected with one end of the filter inductor L1, the other end of the filter inductor L1 is connected with the voltage input end of the high-precision voltage stabilizer U3, the diode D3 is reversely connected with the pin 2 and the ground end, the resistors R14 and R15 which are connected in series with the capacitors C6 and C7 in parallel connection, the other end of the filter inductor L1, the pin 5 is connected with the other end of the pin 5 is connected between the resistor R14 and the resistor R15, the output end of the high-precision voltage stabilizer U3 provides 5V power supply for the whole machine, the capacitor C8 is connected in parallel with the output end and the grounding end of the high-precision voltage stabilizer U3; the power supply circuit is characterized in that after the positive end of a lithium battery BT1 passes through a power switch, a power supply is sent to a power supply end of a pin 6 of a power supply processing chip U2 through an anti-reverse-connection D2 diode, C3 is a filter capacitor of a BT1 lithium battery, and C4 is a power supply filter capacitor of a U2 power supply chip, so that the stability of power supply voltage can be ensured.

1, 7, 8 of power processing chip U2 are connected to pin 6 of power processing chip U2 through resistance R13, be used for detecting output current, when the load breaks down and leads to the electric current too big, power processing chip U2 just can cut off the output, be used for protecting power supply circuit, pin 4 of power processing chip U4 is the earthing terminal, be connected with the negative pole of power, pin 3 external time base electric capacity of power processing chip U4, can set up the operating frequency of power processing chip U2 through the electric capacity size. Pin 2 of the power processing chip U4 is a voltage output terminal, and is connected to the ends of the filter capacitors C6 and C7 after passing through the inductor L1, because the current passing through the inductor L1 cannot change suddenly, the inductor L1 also ensures the stability of the power supply, the diode D3 is a freewheeling diode of the inductor L1, when pin 2 of the power processing chip U2 outputs a high pulse, the current passes through the inductor L1, and when pin 2 outputs a low level, the freewheeling diode D3 continues to provide a path for the inductor L1, thereby ensuring the continuity of the output current. The resistors R14 and R15 are connected to the pin 5 of the power chip U2 after voltage division, and the pin 5 is a voltage sampling port for determining the percentage of the square wave output from the pin 2. Therefore, a closed-loop control is formed, the accuracy of the voltage is guaranteed, the capacitors C6 and C7 are output filter capacitors, the stability of the output voltage is further guaranteed through the two filter capacitors, the output voltage is DC7.125V, then the voltage is stabilized through a high-precision voltage stabilization chip U3, filtering is carried out through the capacitor C8, one and stable 5V voltage is obtained, and a power supply is provided for the whole machine.

The valve opening control module comprises a valve control motor E1, a motor drive module M1, a valve angle sensor R7 and an operational amplifier U1A, a pin 1 of the motor drive module M1 is connected with a switch, a pin 2 is grounded, a pin 3 is connected with the anode of a valve control motor E1, a pin 4 is connected with the cathode of the valve control motor E1, a pin 5 is connected with a pin P23 of a chip U4, a pin 6 is connected with a pin P11 of a chip U4, a pin 7 is connected with a pin P47 of a chip U4, a pin 8 is grounded, one end of the valve angle sensor R7 is connected with a power supply VCC, the other end of the valve angle sensor is connected with GND, a center sliding end passes through a current-limiting resistor R8 and then is connected with an input end of an operational amplifier U1A, an input negative end of the operational amplifier U1A is connected with an output end of the operational amplifier U1A, and an output end of the operational amplifier U1A is connected with a pin P12 of a U4; pin 1 of the motor driving module M1 is a positive power supply terminal of a 12V power supply, a GND pin is a negative power supply terminal, pin 3 and pin 4 are output terminals of the motor driving, and are directly connected to +, -two terminals of the valve control motor E1 to provide rotary power for the motor, pin 6 of the motor driving module M1 is a PWM input terminal, the frequency is 1KHz, the duty ratio is 10% -90%, and the pin is used for controlling the rotation speed of the motor, the resistor R5 is a pull-up resistor of pin 5, pin 6 and pin 7 are control terminals of forward rotation and reverse rotation of the motor, pin 7 is high, pin 6 is low, the motor is forward rotation, pin 7 is low, pin 6 is high, the motor is reverse rotation, both are low, the motor stops rotating, and pins P23, P11 and P47 of the single chip microcomputer U4 are connected to

pins

5, 6 and 7 of the motor driving module M1. The single chip microcomputer U4 can directly control the positive and negative rotation and start and stop of the motor through the three port lines. The valve angle sensor R7 is coaxial with the valve control motor E1, as long as the signal of the angle sensor R7 is detected, the opening degree of the current valve can be determined, one end of the angle sensor R7 is connected with a power supply VCC, the other end of the angle sensor R7 is connected with GND, a central sliding end is a signal output end, the signal is sent to an A/D sampling pin P12 of a single chip microcomputer U4 after being driven by an operational amplifier U1A, then, after the A/D conversion is collected by the inside of the single chip microcomputer U4, the current valve opening degree is calculated, closed-loop control is formed by valve control and valve opening degree detection, and the valve can be accurately rotated to the required opening degree.

The temperature detection module comprises a temperature sensor R9, a constant current source U1 and an operational amplifier U1B, wherein one end of the temperature sensor R9 is connected with a pin 1 of the constant current source U1, the other end of the temperature sensor R9 is grounded, a pin 2 of the constant current source U1 is connected with the input positive end of the operational amplifier U1B through a resistor R10, a pin 3 is connected with VCC, the input negative end of the operational amplifier U1B is divided into two paths, one path is grounded through a resistor R11, the other path is connected with the output end of the operational amplifier U1B through a resistor R12, and the output end of the operational amplifier U1B is connected with a pin P13 of the singlechip U4; the temperature sensor R9 is a thermal resistor which changes along with temperature, the constant current source U1 is an LM317 which provides a constant current source for the temperature sensor R9, a pin 3 of the constant current source U1 is a power supply end, the voltage is 5V, a pin 2 is a reference end, a pin 1 of the constant current source U1 is a current output, the current value is I =2.5mA, the PT100 division number is found, when the temperature of R is 0-50 ℃, the corresponding resistance is 100.00-119.40 Ω, the formula U = RI can be calculated, the corresponding voltage of 0-50 ℃ is 250-298.5 mV, the voltage signal is sent to the input positive end of a U1B operational amplifier, the amplification factor is R12 ÷ R11+1, the amplified signal is 500-597 mV, then the amplified signal is sent to an A/D sampling end of U1, the internal part of U1 is subjected to A/D conversion, and the current actual temperature value of a single chip microcomputer is obtained after operation.

The Bluetooth communication module is a Bluetooth communication module M2, a pin VCC of the Bluetooth communication module M2 is connected with a power supply VCC, a pin GND is grounded, and a pin TXD and a pin RXD are respectively connected with a pin P36/RXD _2 and a pin P37/TXD _2 of the singlechip U4; the Bluetooth communication module M2 and the U4 are connected in a serial port mode and in a TTL level mode. VCC of the Bluetooth communication module M2 is connected with a power supply VCC, and GND is connected with a power ground GND. The capacitor C9 is connected between the power VCC and the ground GND of the bluetooth communication module M2 for reducing the ripple of the power and increasing the stability of the module. The pin TXD is connected with a pin P36/RXD _2 of the U4 singlechip, the pin RXD is connected with a pin P37/TXD _2 of the singlechip U4, the resistor R16 is a pull-up resistor of the pin TXD of the Bluetooth communication module M2, and the resistor R17 is a pull-up resistor of the pin RXD of the Bluetooth communication module M2, so that the stability of data communication is improved.

The clock module comprises a clock chip U5 and a crystal oscillator X2, a pin 1 of the clock chip U5 is connected with a power supply VCC, a pin 2 is connected with one end of the crystal oscillator X2, a pin 3 is connected with the other end of the crystal oscillator X2, a pin 4 is grounded,

pins

5, 6 and 7 are respectively connected with pins P32, P33 and P34 of a singlechip U4, a pin 8 is connected with the anode of a storage battery BT2, and the cathode of the storage battery BT2 is grounded; pin 1 of the clock chip U5 is a 5V power supply and is connected to VCC of a power supply circuit,

pins

2 and 3 are crystal oscillator connection ports, and are externally connected to a crystal oscillator with a frequency of 32.768kH to provide accurate clock signals for the clock chip. Pin 4 of the clock chip U5 is a ground terminal, GND is connected to GND of a power circuit, pin 5/RET is a reset pin, which is connected to pin P32 of the single chip U4, resistor R22 is a pull-up resistor for ensuring the stability of the circuit, pin 6 is an I/O terminal, which is a channel for writing or reading data to or from the clock chip U5 with pin P33 of the single chip U4, and resistor R21 is a pull-up resistor of the I/O port. CLK is the clock signal of the clock chip U5 and cooperates with the I/O data port to complete the reading and writing of data to the clock chip U5. The pin 8 of the clock chip U5 is a power supply pin of a standby power supply, and is connected with the positive terminals of BT2 and 3.6V lithium batteries, when the equipment is powered off, the lithium batteries provide power for the clock chip U5 to ensure that the clock continues to time, when the equipment is powered on, the clock chip U5 uses the 5V power supply of the pin 1, and the clock chip U5 provides current for the pin 8 through a program to charge the lithium batteries.

The programming port comprises a wiring terminal J1, a pin 1 of the wiring terminal J1 is connected with a power supply VCC, and a pin 2 and a pin 3 are respectively connected with a pin P31/TXD and a pin P30/RXD of the singlechip U4. The 5V of J1 binding post is connected with power supply circuit VCC, can provide the power for the singlechip through the VCC port by external programmer during the programming. The GND is connected to the power supply circuit GND. Pin 2 of the connecting terminal J1 is connected with pin P31/TXD of the singlechip U4, and the resistor R19 is a pull-up resistor and is used for ensuring the stability of data transmission of the port line. Pin 3 of the connecting terminal J1 is connected with pin P30/RXD of the singlechip U4, and the resistor R18 is a pull-up resistor and is used for ensuring the stability of data transmission of the port line.

When the specific implementation, the utility model discloses an intelligence indoor temperature controller carries out the communication through bluetooth and cell-phone, the user can set up the temperature of different time quantums on cell-phone APP, can set up the temperature of 4 time quantums simultaneously, intelligence indoor temperature controller carries out the PID operation to the indoor temperature value of gathering, target temperature value and output percentage, calculate the percentage that next time point should be exported, then output control port by intelligence indoor temperature controller exports corresponding percentage, under motor drive shaft 11 promotes, motor 10 controls angle sensor 9's rotation, and then control valve element 13's aperture, thereby guaranteed that indoor temperature reaches the setting value.

Claims

1. An intelligent indoor heating temperature controller comprises an indoor heating radiator, wherein one end of the indoor heating radiator is provided with a water inlet pipe, and the other end of the indoor heating radiator is provided with a water outlet pipe; the lower end of the valve core is arranged in the valve body and used for controlling the valve body to be opened and closed, the driving shaft of the motor is connected with the upper end of the valve core, the angle sensor is arranged on the motor, the main control circuit board is in signal connection with the angle sensor and comprises a valve opening control module, a temperature detection module, a power supply module, a Bluetooth communication module, a single chip microcomputer, a clock module and a programming port; the power module with valve opening control module, temperature detection module, bluetooth communication module, singlechip, clock module and programming port electricity are connected, valve opening control module, temperature detection module, bluetooth communication module, clock module and programming port all with singlechip signal connection.

2. The intelligent indoor heating temperature controller of claim 1, wherein the upper part of the housing is provided with an openable upper cover.

3. The intelligent indoor heating temperature controller of claim 1, wherein the single chip microcomputer is a single chip microcomputer U4, the single chip microcomputer U4 is IAP15W4K61S4, a pin VCC of the single chip microcomputer U4 is a single chip microcomputer power supply terminal, and a pin GND is grounded;

the power supply module comprises a power switch S1, a power supply processing chip U2, a filter inductor L1, a high-precision voltage stabilizer U3, a filter capacitor C3 and a filter capacitor C4, wherein a pin 6 of the chip U2 is divided into two paths, one path is connected with the cathode of a diode D2, the other path is connected with a pin 1 of a power supply processing chip U2 through a resistor R13, the anode of a diode D2 is connected with the anode of a power supply BT1 through a power switch S1 to supply power to the power supply processing module, pins 7 and 8 are connected with the pin 1, the anode ends of capacitors C3 and C4 are respectively connected with the two sides of a diode D2, the cathode end of the diode D2 is grounded, a pin 6 of the power supply processing chip U2 is grounded, a pin 3 is grounded through a capacitor C5, the pin 2 is connected with one end of the filter inductor L1, the other end of the filter inductor L35 1 is connected with the voltage input end of the high-precision voltage stabilizer U3, the diode D3 is reversely connected with the pin 2 and the ground, and the serially connected with a resistor R14, R15, and the capacitor C4 are connected with the ground, C7 is connected in parallel and is connected to the other end of the filter inductor L1, a pin 5 is connected between a resistor R14 and a resistor R15, the output end of the high-precision voltage stabilizer U3 provides a 5V power supply for the whole machine, and a capacitor C8 is connected in parallel to the output end and the grounding end of the high-precision voltage stabilizer U3;

the chip U2 is a chip MC 34063;

the valve opening control module comprises a valve control motor E1, a motor drive module M1, a valve angle sensor R7 and an operational amplifier U1A, wherein a pin 1 of the motor drive module M1 is connected with a switch, a pin 2 is grounded, a pin 3 is connected with the anode of the valve control motor E1, a pin 4 is connected with the cathode of the valve control motor E1, a pin 5 is connected with a pin P23 of a chip U4, a pin 6 is connected with a pin P11 of a chip U4, a pin 7 is connected with a pin P47 of a chip U4, a pin 8 is grounded, one end of the valve angle sensor R7 is connected with a power supply VCC, the other end of the valve angle sensor is connected with GND, a central sliding end of the valve opening control module passes through a current-limiting resistor R8 and then is connected with an input positive end of an operational amplifier U1A, an input negative end of the operational amplifier U1A is connected with an output end of the operational amplifier U1A, and an output end of the operational amplifier U1A is connected with a pin P12 of a single chip microcomputer U4;

the temperature detection module comprises a temperature sensor R9, a constant current source U1 and an operational amplifier U1B, wherein one end of the temperature sensor R9 is connected with a pin 1 of the constant current source U1, the other end of the temperature sensor R9 is grounded, a pin 2 of the constant current source U1 is connected with the input positive end of the operational amplifier U1B through a resistor R10, a pin 3 is connected with VCC, the input negative end of the operational amplifier U1B is divided into two paths, one path is grounded through a resistor R11, the other path is connected with the output end of the operational amplifier U1B through a resistor R12, and the output end of the operational amplifier U1B is connected with a pin P13 of the singlechip U4;

the Bluetooth communication module is a Bluetooth communication module M2, a pin VCC of the Bluetooth communication module M2 is connected with a power supply VCC, a pin GND is grounded, a pin TXD and a pin RXD are respectively connected with a pin P36/RXD _2 and a pin P37/TXD _2 of the singlechip U4, and the pin TXD and the pin RXD are connected with the power supply VCC through pull-up resistors R16 and R17;

the clock module comprises a clock chip U5 and a crystal oscillator X2, a pin 1 of a clock chip U5 is connected with a power supply VCC, a pin 2 is connected with one end of the crystal oscillator X2, a pin 3 is connected with the other end of the crystal oscillator X2, a pin 4 is grounded, pins 5, 6 and 7 are respectively connected with pins P32, P33 and P34 of a singlechip U4, the pins 5, 6 and 7 are respectively connected with pull-up resistors R22, R21 and R20, a pin 8 is connected with the anode of a storage battery BT2, and the cathode of the storage battery BT2 is grounded;