CN206608027U - A kind of intelligent window control system based on Internet of Things - Google Patents

Abstract

The utility model discloses an intelligent window control system based on the Internet of Things, comprising a main control circuit, a PM2.5 sensor, a raindrop sensor, an oxygen concentration sensor, a temperature and humidity sensor, a window opener, a Bluetooth module and a wireless purifier module, PM2. .5 The output end of the sensor, the output end of the raindrop sensor and the output end of the oxygen concentration sensor are all connected with the input end of the main control circuit, the output end of the main control circuit is connected with the input end of the window drive, and the main control circuit is also connected with the input end of the window opener respectively. The temperature and humidity sensor, bluetooth module and wireless purifier module are connected. The utility model integrates the functions of PM2.5 monitoring, rainwater monitoring, oxygen content monitoring and temperature and humidity monitoring. It can not only prevent rain, but also automatically open the air purifier through the wireless purifier module, reduce the influence of PM2.5, and have better functions. Rich; added a Bluetooth module, wider applicability, and more convenient. The utility model can be widely used in the field of smart home.

Description

A Smart Window Control System Based on Internet of Things

technical field

The utility model relates to the field of intelligent home furnishing, in particular to an intelligent window control system based on the Internet of Things.

Background technique

With the continuous development and popularization of the Internet of Things, living and home furnishing has entered the era of intelligence and networking technology, and windows with intelligent rainproof have been widely used in people's lives. However, with the emergence of environmental pollution, users need to obtain more data indicators of the living environment, and also need more intelligent windows to reduce the impact of the environment on human health to a greater extent.

With the popularization of smart windows, smart windows have been able to realize remote wireless control of the switch function of windows, and at the same time can detect the amount of rainwater and prevent rain through automatic control, detect and alarm flammable gases or smoke, and monitor indoor temperature. Humidity detection and other functions. However, due to the increasing impact of today's smog on human health, users not only need to monitor PM2.5 data, but also need to reduce the impact of PM2.5 entering the room on the human body. However, the current smart windows do not have this function. In addition, although the current smart windows already have remote wireless control terminals, they cannot receive indoor and outdoor monitoring data, and their control terminals are also limited by fixed controllers. demanding.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a smart window control system based on the Internet of Things with rich functions, wide applicability and convenience.

The technical scheme that the utility model takes is:

An intelligent window control system based on the Internet of Things, including a main control circuit, a PM2.5 sensor, a raindrop sensor, an oxygen concentration sensor, a temperature and humidity sensor, a window opener, a Bluetooth module and a wireless purifier module, the PM2.5 sensor The output end of the raindrop sensor and the output end of the oxygen concentration sensor are all connected to the input end of the main control circuit, the output end of the main control circuit is connected to the input end of the window drive, and the main control circuit is also respectively Connect with temperature and humidity sensor, bluetooth module and wireless purifier module.

Further, the main control circuit includes an AD conversion circuit, a single-chip microcomputer, a relay drive circuit, a crystal oscillator circuit, a reset circuit and a voltage stabilizing circuit, and the input end of the AD conversion circuit is connected to the output end of the PM2.5 sensor and the output of the raindrop sensor respectively. terminal and the output terminal of the oxygen concentration sensor, the input terminal of the single-chip microcomputer is respectively connected with the output terminal of the crystal oscillator circuit, the output terminal of the reset circuit and the output terminal of the voltage stabilizing circuit, and the output terminal of the single-chip microcomputer is connected with the input terminal of the relay drive circuit The output end of the relay driving circuit is connected with the input end of the window opener, and the single-chip microcomputer is also connected with the AD conversion circuit, the temperature and humidity sensor, the bluetooth module and the wireless purifier module respectively.

Further, the wireless purifier module includes a wireless transceiver unit and an air purifier, and the wireless transceiver unit is connected to the air purifier and the single-chip microcomputer respectively.

Further, the wireless transceiver unit includes a power supply, an AMS117 voltage conversion circuit and an nRF24L01 wireless chip, the output of the power supply is connected to the input of the AMS117 voltage conversion circuit, and the output of the AMS117 voltage conversion circuit is connected to the input of the nRF24L01 wireless chip The nRF24L01 wireless chip is also connected with the air purifier and the single-chip microcomputer respectively.

Further, the window opener is a single chain window opener, and the single chain window opener includes a chain, a window block, a bayonet, a window screw, a mounting bracket, a bracket screw, a fixing code, a fixing screw and a window opener The main body, the chain protrudes or retracts from the chain opening of the main body of the window opener and is connected with the window block through the bayonet. The window block is fixed on the window by the window screw, and the main body of the window opener passes through The bracket screws are installed on the mounting bracket, and the mounting bracket is also fixed by the fixing code and the fixing screws.

Further, the relay driving circuit includes a PNP transistor, a rectifier diode, an SPDT relay and a power supply, and the SPDT relay includes a non-polar coil, a normally open contact, a normally closed contact, a cutter and a common terminal, and the base of the PNP transistor pole is connected with the output end of the single-chip microcomputer, the emitter of the PNP transistor is grounded, the collector of the PNP transistor is respectively connected with the anode of the rectifier diode and one end of the nonpolar coil, and the other end of the nonpolar coil is connected with the rectifier diode The cathodes are all connected to the power supply, the common end is connected to the normally open contact or the normally closed contact through the cutter, the common end is also connected to the positive pole of the power supply of the single chain window opener, and the normally open contact is also connected to the single Negative power supply connection of the chain drive.

Further, the single-chip microcomputer is also connected with an LCD display.

Further, the single-chip microcomputer is a STC12C5A60S2 single-chip microcomputer, the AD conversion circuit adopts a PCF8591 chip, the Bluetooth module is an HC-05 module, and the LCD display screen is an LCD12864 display screen.

Further, the main control circuit also includes a PM2.5 sensor interface circuit, a raindrop sensor interface circuit, an oxygen concentration sensor interface circuit, a temperature and humidity sensor interface circuit, a Bluetooth module interface circuit and an LCD display interface circuit, and the PM2.5 sensor The input end of the interface circuit is connected with the output end of the PM2.5 sensor, the input end of the raindrop sensor interface circuit is connected with the output end of the raindrop sensor, and the input end of the oxygen concentration sensor interface circuit is connected with the output end of the oxygen concentration sensor , the temperature and humidity sensor interface circuit is connected with the temperature sensor and the single-chip microcomputer respectively, the bluetooth module interface circuit is connected with the bluetooth module and the single-chip microcomputer respectively, the LCD display screen interface circuit is connected with the LCD display screen and the single-chip microcomputer respectively, and the PM2. 5. The output end of the sensor interface circuit, the output end of the raindrop sensor interface circuit, and the output end of the oxygen concentration sensor interface circuit are all connected to the input end of the AD conversion circuit.

Further, the AD conversion circuit is connected to the single-chip microcomputer through the I2C bus, the temperature and humidity sensor is connected to the single-chip microcomputer through a single bus, the Bluetooth module is connected to the single-chip microcomputer through a serial bus, and the wireless purifier module is connected to the single-chip microcomputer through the SPI bus .

The beneficial effect of the utility model is that it includes a main control circuit, a PM2.5 sensor, a raindrop sensor, an oxygen concentration sensor, a temperature and humidity sensor, a window opener, a Bluetooth module and a wireless purifier module, and integrates PM2.5 monitoring, rainwater monitoring, Oxygen content monitoring and temperature and humidity monitoring functions in one, not only can prevent rain, but also can automatically turn on the air purifier through the wireless purifier module to reduce the impact of PM2. Communicating with the windows can not only obtain the data information of the surrounding environment of the windows and carry out remote wireless control on the windows by receiving the monitoring data indoors and outdoors, but also support the connection of any mobile phone, no longer limited by the fixed control terminal, and the applicability is more wider and more convenient.

Description of drawings

Fig. 1 is the overall structural block diagram of a kind of intelligent window control system based on Internet of Things of the utility model;

Fig. 2 is the structural block diagram of the utility model wireless purifier module;

Fig. 3 is a kind of structural representation of the utility model window opener;

Fig. 4 is the circuit schematic diagram of the utility model relay drive circuit;

5 is a structural block diagram of the PM2.5 sensor interface circuit, the raindrop sensor interface circuit, the oxygen concentration sensor interface circuit, the temperature and humidity sensor interface circuit, the Bluetooth module interface circuit and the LCD display interface circuit of the utility model;

Fig. 6 is the circuit schematic diagram of the utility model embodiment one single-chip microcomputer;

Fig. 7 is the schematic circuit diagram of reset circuit, crystal oscillator circuit and voltage stabilizing circuit of the utility model embodiment one;

Fig. 8 is a schematic circuit diagram of an AD conversion circuit according to an embodiment of the present invention;

Fig. 9 is the circuit schematic diagram of the utility model embodiment one AMS117 voltage conversion circuit;

Fig. 10 is a schematic circuit diagram of nRF24L01 wireless chip and nRF24L01 wireless interface circuit of the utility model embodiment;

Fig. 11 is a schematic circuit diagram of an LCD display interface circuit according to Embodiment 1 of the present utility model;

Fig. 12 is a schematic circuit diagram of the USB serial port circuit, the PM2.5 sensor interface circuit, the raindrop sensor interface circuit, the oxygen concentration sensor interface circuit, the temperature and humidity sensor interface circuit and the Bluetooth module interface circuit of the utility model.

detailed description

With reference to Fig. 1, a kind of intelligent window control system based on Internet of Things comprises main control circuit, PM2.5 sensor, raindrop sensor, oxygen concentration sensor, temperature and humidity sensor, window opener, bluetooth module and wireless purifier module, described The output end of the PM2.5 sensor, the output end of the raindrop sensor and the output end of the oxygen concentration sensor are all connected to the input end of the main control circuit, and the output end of the main control circuit is connected to the input end of the window drive. The control circuit is also connected with the temperature and humidity sensor, the bluetooth module and the wireless purifier module respectively.

With reference to Fig. 1, further as preferred embodiment, described main control circuit comprises AD conversion circuit, single-chip microcomputer, relay drive circuit, crystal oscillator circuit, reset circuit and voltage stabilizing circuit, the input terminal of described AD conversion circuit is connected with PM2.5 respectively The output end of the sensor, the output end of the raindrop sensor and the output end of the oxygen concentration sensor are connected, and the input end of the single-chip microcomputer is connected with the output end of the crystal oscillator circuit, the output end of the reset circuit and the output end of the voltage stabilizing circuit respectively, and the single-chip microcomputer The output end of the relay drive circuit is connected to the input end of the relay drive circuit, the output end of the relay drive circuit is connected to the input end of the window opener, and the single-chip microcomputer is also connected with the AD conversion circuit, temperature and humidity sensor, bluetooth module and wireless purifier module respectively connect.

Referring to FIG. 2 , as a further preferred embodiment, the wireless purifier module includes a wireless transceiver unit and an air purifier, and the wireless transceiver unit is connected to the air purifier and the single-chip microcomputer respectively.

With reference to Fig. 2, further as preferred embodiment, described wireless transceiver unit comprises power supply, AMS117 voltage conversion circuit and nRF24L01 wireless chip, the output end of described power supply is connected with the input end of AMS117 voltage conversion circuit, and described AMS117 voltage conversion circuit The output end of the nRF24L01 wireless chip is connected with the input end of the nRF24L01 wireless chip, and the nRF24L01 wireless chip is also connected with the air purifier and the single-chip microcomputer respectively.

Referring to Fig. 3, further as a preferred embodiment, the window opener is a single chain window opener, and the single chain window opener includes a chain 9, a window block 7, a bayonet pin 8, a window screw 6, and a mounting bracket 3. Bracket screw 2, fixing code 4, fixing screw 5 and the main body of the window opener 1, the chain 9 protrudes or retracts from the opening of the main body 1 of the window opener and is connected with the window block 7 through the bayonet pin 8 , the window block 7 is fixed on the window by the window screw 6, the window opener main body 1 is installed on the installation bracket 3 by the bracket screw 2, and the installation bracket 3 is also fixed by the fixing code 4 and the fixing screw 5 fixed.

Referring to Fig. 4, further as a preferred embodiment, the relay drive circuit includes a PNP transistor Q1, a rectifier diode D1, an SPDT relay and a power supply VCC, and the SPDT relay includes a non-polar coil T1, a normally open contact no, a normally closed contact Point nc, cutter K1 and common terminal com, the base of the PNP transistor Q1 is connected to the output terminal of the single-chip microcomputer, the emitter of the PNP transistor Q1 is grounded, and the collector of the PNP transistor Q1 is connected to the rectifier diode D1 respectively. The anode is connected to one end of the non-polar coil T1, the other end of the non-polar coil T1 and the cathode of the rectifier diode D1 are connected to the power supply VCC, the common terminal com is connected to the normally open contact no or the normally closed contact through the cutter K1 The point nc is connected, the common terminal com is also connected to the positive pole of the power supply of the single-chain drive, and the normally open contact no is also connected to the negative pole of the power supply of the single-chain drive.

Referring to FIG. 1 , as a further preferred embodiment, the single-chip microcomputer is also connected with an LCD display.

As a further preferred embodiment, the single-chip microcomputer is a STC12C5A60S2 single-chip microcomputer, the AD conversion circuit adopts a PCF8591 chip, the Bluetooth module is an HC-05 module, and the LCD display screen is an LCD12864 display screen.

Referring to Fig. 5, further as a preferred embodiment, the main control circuit also includes a PM2.5 sensor interface circuit, a raindrop sensor interface circuit, an oxygen concentration sensor interface circuit, a temperature and humidity sensor interface circuit, a bluetooth module interface circuit and an LCD display Interface circuit, the input end of the PM2.5 sensor interface circuit is connected to the output end of the PM2.5 sensor, the input end of the raindrop sensor interface circuit is connected to the output end of the raindrop sensor, and the input of the oxygen concentration sensor interface circuit terminal is connected with the output end of the oxygen concentration sensor, the interface circuit of the temperature and humidity sensor is connected with the temperature sensor and the single-chip microcomputer respectively, the interface circuit of the bluetooth module is connected with the bluetooth module and the single-chip microcomputer respectively, and the interface circuit of the LCD display screen is respectively connected with the LCD display The screen is connected with the single-chip microcomputer, and the output end of the PM2.5 sensor interface circuit, the output end of the raindrop sensor interface circuit, and the output end of the oxygen concentration sensor interface circuit are all connected with the input end of the AD conversion circuit.

Further as a preferred embodiment, the AD conversion circuit is connected to the single-chip microcomputer through the I2C bus, the temperature and humidity sensor is connected to the single-chip microcomputer through a single bus, the Bluetooth module is connected to the single-chip microcomputer through a serial bus, and the wireless purifier module is connected to the single-chip microcomputer through a serial bus. The SPI bus is connected with the microcontroller.

The utility model will be further explained and illustrated below in conjunction with the accompanying drawings and specific embodiments of the description.

Embodiment one

Aiming at the problems of lack of functions, wide applicability and inconvenience in the prior art, the utility model proposes a new intelligent window control system based on the Internet of Things. The smart window control system can not only prevent rain, but also automatically turn on the air purifier to reduce the impact of PM2.5, and can communicate with the window through the mobile phone to obtain the data information of the surrounding environment of the window and control the window, and also supports any The connection of the mobile phone is no longer limited to a fixed console.

As shown in Figure 1, the utility model mainly includes a main control circuit, a PM2.5 sensor, a raindrop sensor, an oxygen concentration sensor, a temperature and humidity sensor, a window opener, a Bluetooth module, a wireless purifier module and an LCD display.

The PM2.5 sensor is used to collect the PM2.5 content in the air.

The raindrop sensor is used to collect the amount of rainwater.

The oxygen concentration sensor is used to collect the oxygen concentration content.

The temperature and humidity sensor is used to collect temperature and humidity.

The main control circuit is used for data processing (including but not limited to analysis, comparison, upload and display, etc.) corresponding control signal. The main control circuit can be further subdivided into AD conversion circuit, single chip microcomputer, relay drive circuit, crystal oscillator circuit, reset circuit, voltage stabilization circuit, PM2.5 sensor interface circuit, raindrop sensor interface circuit, oxygen concentration sensor interface circuit, temperature and humidity sensor interface circuit, Bluetooth module interface circuit, LCD display interface circuit and other communication interfaces.

Among them, the PM2.5 sensor interface circuit, the raindrop sensor interface circuit, the oxygen concentration sensor interface circuit and the temperature and humidity sensor interface circuit are respectively used to receive the data collected by the PM2.5 sensor, the raindrop sensor, the oxygen concentration sensor and the temperature and humidity sensor. The specific circuit structure of PM2.5 sensor interface circuit P2, raindrop sensor interface circuit P3, oxygen concentration sensor interface circuit P4 and temperature and humidity sensor interface circuit P1 is shown in Figure 12.

The AD conversion circuit is used to convert the data collected by the PM2.5 sensor, the raindrop sensor, the oxygen concentration sensor and the temperature and humidity sensor from the analog signal to the corresponding digital signal. The AD conversion circuit can be implemented by PCF8591 chip U2, and its specific circuit structure is shown in Figure 8.

The single-chip microcomputer is the control core of the whole system, and is used for data processing according to data or signals such as digital signals output by the AD conversion circuit and remote control signals to trigger corresponding control signals. Although the single-chip microcomputer involves the process of data processing, it can be realized by using the existing STC12C5A60S2 single-chip microcomputer U1, and its specific circuit structure is shown in Figure 6.

The crystal oscillator circuit is used to provide the clock signal required by the system for the microcontroller. As shown in Figure 7, the specific structure of the crystal oscillator circuit consists of crystal oscillator Y1 and grounding capacitors C2 and C3.

The reset circuit is used to provide a reset input signal for the microcontroller. As shown in FIG. 7, the reset circuit is composed of a reset switch SW, a capacitor C1 and a resistor R1.

The voltage stabilizing circuit is used to provide the voltage signal required for the operation of the single chip microcomputer. As shown in Figure 7, the voltage stabilizing circuit is composed of a power supply VCC and capacitors C4, C5, C6, C7 and C8.

The relay drive circuit is used to trigger the corresponding relay drive signal according to the control signal of the single chip microcomputer. As shown in Figure 4, the relay drive circuit is mainly composed of PNP transistor Q1, rectifier diode D1, SPDT relay and power supply VCC, and the SPDT relay can be further subdivided into non-polar coil T1, normally open contact no, normally closed contact nc , Cutter K1 and public terminal com. In FIG. 4 , the base of the PNP transistor Q1 is connected to the signal control terminal windows of the microcontroller U1 in FIG. 6 .

The window opener is used to control the opening and closing of the window according to the relay driving signal. Drives, single chain drives can be used. The structure of the single chain window opener is shown in Figure 3, including chain 9, connecting window block 7, bayonet pin 8, connecting window screw 6, mounting bracket 3, bracket screw 2, fixing code 4, fixing screw 5 and the window opener Main body 1, its voltage is AC 220V, the thrust force is 400N, the pull force is 600N, the maximum working current for thrust force is 0.3A, the maximum working current for pull force is 0.4A, the stroke distance is 100~800mm, and the pushing speed is 10mm/sec. The main body 1 of the window opener is equipped with a motor (forward and reverse) and a reducer device (composed of large and small gear sets, sprockets, etc.). Wherein, both the fixing screw 5 and the window screw 6 can adopt M5 round head self-tapping screws. The single-chip microcomputer controls the single-chain window opener to open and close windows through the relay drive circuit shown in Figure 4: the relay drive signal controls the motor in the main body 1 of the window opener to rotate forward and reverse, and then through the reducer device (pinion gear) Drive bull gear, and bull gear drives pinion again, and pinion drives sprocket again) the power that this process opens is transmitted to chain 9, drives chain 9 to stretch out or withdraw, realizes the switch action of window.

The bluetooth module is used to upload the environmental monitoring data such as PM2.5 content in the air, rainwater, oxygen concentration, temperature and humidity, and the result data of data processing to remote wireless control terminals such as mobile phones through bluetooth communication, and obtain mobile phone Wait for the remote control signal sent by the remote wireless control terminal. The Bluetooth module can be realized by using the HC-05 module, and its corresponding Bluetooth module interface circuit P5 is shown in Figure 12.

The wireless purifier module is used to turn on the air purifier according to the control signal of the single chip microcomputer to reduce the PM2.5 concentration in the air when the concentration of PM2.5 in the air is too high. As shown in Figure 2, the wireless purifier module includes a wireless transceiver unit and an air purifier. The wireless transceiver unit includes the power supply VCC shown in FIG. 9 , the AMS117 voltage conversion circuit U3 and the nRF24L01 wireless chip U4 shown in FIG. 10 . The nRF24L01 wireless chip has extremely low current consumption. It communicates with multiple machines through SPI (Serial Peripheral Interface). The SPI interface rate is 0~8Mbps, and the wireless rate is 1 or 2Mbps. It can perform automatic response and automatic retransmission functions. , with 6 data channels, capable of one-to-one, one-to-many, many-to-one data sending and receiving control, the working voltage is 1.9~3.6V. However, the VCC voltage of the power supply is 5V, and the nRF24L01 wireless chip is a sensitive component, the voltage is unstable or easily burned due to static electricity, so this embodiment uses the AMS1117 5V to 3.3V chip for voltage conversion to output a stable 3.3V The V voltage provides the operation of the nRF24L01 wireless chip, as shown in Figure 9. The pins for communication between the nRF24L01 wireless chip and the microcontroller SPI (Serial Peripheral Interface) are connected with MISO (master input and slave output), MOSI (master output and slave input), SCK (clock signal), CSN (chip select terminal), CE ( Sending and receiving selection terminal), IRQ (maskable interrupt), through the connection of the corresponding function pins, the purpose of controlling the air purifier is achieved. In the main control circuit, the structure of the nRF24L01 wireless interface circuit P6 corresponding to the nRF24L01 wireless chip is shown in Figure 10 .

The LCD display is used to display the environmental monitoring data such as PM2.5 content in the air, rainwater, oxygen concentration content, temperature and humidity, and the result data of data processing according to the control signal of the single-chip microcomputer. The LCD display screen can be realized by LCD12864 display screen with Chinese character library, and its LCD12864 display screen interface circuit P7 in the main control circuit is shown in Figure 11.

In addition, the AD conversion circuit of this embodiment is connected to the microcontroller through the I2C bus, the temperature and humidity sensor is connected to the microcontroller through the single bus, the Bluetooth module is connected to the microcontroller through the serial bus, and the wireless purifier module is connected to the microcontroller through the SPI bus. The example main control circuit should also include other communication interfaces, such as I2C interface circuit, single bus interface circuit, serial communication interface circuit and SPI interface. Figure 12 shows the implementation of the serial communication interface circuit of the USB serial port J1.

The basic principle of the utility model is: when the control system is powered on and working, the single-chip microcomputer receives the data from the outdoor PM2. Oxygen concentration, window opening and closing status data, and remote control signals from remote mobile control terminals such as mobile phones are received through the Bluetooth module, and then data processing is performed according to the received or monitored environmental data and remote control signals, and corresponding control signals are triggered to execute Corresponding to the following operations: according to the control signal of the single-chip microcomputer, control the window opener through the relay drive circuit and/or open the air purifier through the wireless purifier; or display the received or monitored environmental data and data processing result data on the LCD display; or The received or monitored environmental data and data processing result data are sent to remote mobile control terminals such as connected mobile phones through the Bluetooth module. Among them, the specific operations performed in the process of controlling the window opener through the relay drive circuit according to the control signal of the single-chip microcomputer and/or opening the air purifier through the wireless purifier include: when it is raining, control the opening of the window through the relay drive circuit according to the control signal of the single-chip microcomputer When the concentration of PM2.5 in the air is too high, according to the control signal of the single chip microcomputer, the relay drive circuit controls the window opener to close the window and open the air purifier through the wireless purifier module to reduce the indoor PM2. 5 concentration.

The intelligent window control system based on the Internet of Things of the utility model can monitor the surrounding environment in real time and transmit the environmental data monitored indoors and outdoors to the LCD display screen for display, and at the same time transmit it to the mobile phone for display, effectively suppressing the indoor PM2.5 content , and supports the connection and communication function of the mobile phone. Compared with traditional related applications, the utility model has the following advantages:

1) Any mobile phone with Bluetooth function can control the connection of the system. For people with handicapped legs, they can control the opening and closing of windows through mobile phones, making users' lives more comfortable, convenient and more at ease.

2) In addition to monitoring environmental conditions and rainproof functions, it also effectively prevents PM2.5. It not only intelligently isolates PM2.5 from entering the room through windows, but also intelligently cleans the air through the air purifier of the wireless purifier module. Purification greatly reduces the content of PM2.5 in indoor air and reduces the impact of smog on human health.

The above is a specific description of the preferred implementation of the utility model, but the utility model is not limited to the described embodiments, those skilled in the art can also make various equivalent deformations without violating the spirit of the utility model Or replacement, these equivalent modifications or replacements are all included within the scope defined by the claims of the present application.

Claims (10)

1. An intelligent window control system based on the Internet of Things, characterized in that: comprising a main control circuit, a PM2.5 sensor, a raindrop sensor, an oxygen concentration sensor, a temperature and humidity sensor, a window opener, a bluetooth module and a wireless purifier module, The output end of the PM2.5 sensor, the output end of the raindrop sensor and the output end of the oxygen concentration sensor are all connected with the input end of the main control circuit, and the output end of the main control circuit is connected with the input end of the window drive, so The main control circuit is also connected with the temperature and humidity sensor, the bluetooth module and the wireless purifier module respectively. 2. A kind of intelligent window control system based on the Internet of Things according to claim 1, characterized in that: the main control circuit includes an AD conversion circuit, a single-chip microcomputer, a relay drive circuit, a crystal oscillator circuit, a reset circuit and a voltage stabilizing circuit, The input end of the AD conversion circuit is connected with the output end of the PM2.5 sensor, the output end of the raindrop sensor and the output end of the oxygen concentration sensor respectively, and the input end of the single-chip microcomputer is respectively connected with the output end of the crystal oscillator circuit and the output of the reset circuit. end is connected with the output end of the voltage stabilizing circuit, the output end of the single-chip microcomputer is connected with the input end of the relay drive circuit, the output end of the relay drive circuit is connected with the input end of the window opener, and the single-chip microcomputer is also connected with the AD conversion circuit, temperature and humidity sensor, bluetooth module and wireless purifier module connection. 3. A kind of intelligent window control system based on the Internet of Things according to claim 2, characterized in that: the wireless purifier module includes a wireless transceiver unit and an air purifier, and the wireless transceiver unit is connected to the air purifier and the air purifier respectively MCU connection. 4. A kind of intelligent window control system based on the Internet of Things according to claim 3, characterized in that: the wireless transceiver unit includes a power supply, an AMS117 voltage conversion circuit and an nRF24L01 wireless chip, and the output terminal of the power supply is connected to the AMS117 voltage The input end of the conversion circuit is connected, the output end of the AMS117 voltage conversion circuit is connected with the input end of the nRF24L01 wireless chip, and the nRF24L01 wireless chip is also connected with the air purifier and the single-chip microcomputer respectively. 5. An intelligent window control system based on the Internet of Things according to claim 2, characterized in that: the window opener is a single-chain window opener, and the single-chain window opener includes a chain, a connecting window block, Bayonet, window screw, mounting bracket, bracket screw, fixing code, fixing screw and the main body of the window drive, the chain protrudes or retracts from the opening of the main body of the window drive and is connected with the window block through the bayonet pin , the window block is fixed on the window by the window screw, the main body of the window opener is installed on the installation bracket by the bracket screw, and the installation bracket is also fixed by the fixing code and the fixing screw. 6. A kind of intelligent window control system based on Internet of Things according to claim 5, is characterized in that: described relay drive circuit comprises PNP transistor, rectifier diode, SPDT relay and power supply, and described SPDT relay comprises nonpolar coil, A normally open contact, a normally closed contact, a cutter and a common terminal, the base of the PNP transistor is connected to the output terminal of the microcontroller, the emitter of the PNP transistor is grounded, and the collector of the PNP transistor is respectively connected to the rectifier diode The anode of the non-polar coil is connected to one end of the non-polar coil, the other end of the non-polar coil and the cathode of the rectifier diode are connected to the power supply, the common end is connected to the normally open contact or the normally closed contact through the cutter, and the common The terminal is also connected to the positive pole of the power supply of the single-chain window drive, and the normally open contact is also connected to the negative pole of the power supply of the single-chain window drive. 7. A smart window control system based on the Internet of Things according to claim 2, characterized in that: the single-chip microcomputer is also connected with an LCD display. 8. A kind of intelligent window control system based on the Internet of Things according to claim 7, characterized in that: the single-chip microcomputer is a STC12C5A60S2 single-chip microcomputer, the AD conversion circuit adopts a PCF8591 chip, and the bluetooth module is an HC-05 module, The LCD display is an LCD12864 display. 9. A smart window control system based on the Internet of Things according to claim 7, characterized in that: the main control circuit also includes a PM2.5 sensor interface circuit, a raindrop sensor interface circuit, an oxygen concentration sensor interface circuit, a temperature Humidity sensor interface circuit, bluetooth module interface circuit and LCD display screen interface circuit, the input end of described PM2.5 sensor interface circuit is connected with the output end of PM2.5 sensor, the input end of described raindrop sensor interface circuit is connected with the output end of raindrop sensor The output end is connected, the input end of the oxygen concentration sensor interface circuit is connected with the output end of the oxygen concentration sensor, the temperature and humidity sensor interface circuit is connected with the temperature sensor and the single-chip microcomputer respectively, and the bluetooth module interface circuit is connected with the bluetooth module and the single-chip microcomputer respectively Connect, the LCD display interface circuit is connected with the LCD display and the single-chip microcomputer respectively, the output end of the PM2.5 sensor interface circuit, the output end of the raindrop sensor interface circuit, the output end of the oxygen concentration sensor interface circuit are all connected with the AD conversion The input terminal of the circuit is connected. 10. A smart window control system based on the Internet of Things according to any one of claims 2-9, characterized in that: the AD conversion circuit is connected to the single-chip microcomputer through the I2C bus, and the temperature and humidity sensor is connected to the single-chip microcomputer through the single bus. The single-chip microcomputer is connected, the bluetooth module is connected with the single-chip microcomputer through the serial bus, and the wireless purifier module is connected with the single-chip microcomputer through the SPI bus.