Internet-of-things control system for WiFi-free network environment

Abstract

The utility model provides an internet-of-things control system for a WiFi-free network environment, which comprises a master control module, a slave control module and an intelligent infrared device which are connected with each other, the master control module comprises a host master control sub-module and a clock sub-module which are connected with each other, and the slave control module comprises a slave master control sub-module; the intelligent infrared device comprises an infrared receiving sub-module, a host master control sub-module of the master control subsystem is wirelessly connected with a slave master control sub-module of the slave control module, and the slave master control sub-module is connected with an infrared emission sub-module. And the slave master control sub-module is connected with an infrared receiving sub-module of the intelligent infrared equipment through the infrared emission sub-module, so that the host master control sub-module controls the slave master control sub-module to send a control instruction to the intelligent infrared equipment under the timing of the clock sub-module. The master control module can have a timing function through the clock sub-module, the intelligent infrared device can be controlled through the slave control module, the intelligent infrared device is turned on and off in a timing mode, and intelligent control over the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of Internet of Things (IoT) control technology, and in particular to an IoT control system for environments without WiFi networks. Background Technology

[0002] Existing intelligent control systems for automating home appliance control rely on an Internet of Things (IoT) platform, requiring both a real-time connected WiFi wireless network and IoT functional modules within smart furniture. Therefore, the use of intelligent infrared devices has limitations in environments without WiFi, where traditional infrared control methods are used for appliances like air conditioners, and where security is a concern. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose an IoT control system for environments without WiFi networks, so as to solve some or all of the technical problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides an IoT control system for environments without WiFi networks, comprising:

[0005] The main control module, slave control module, and intelligent infrared device are connected together;

[0006] The main control module includes a host main control submodule and a clock submodule connected to each other; the slave control module includes a slave main control submodule; the intelligent infrared device includes an infrared receiving submodule.

[0007] The host master control submodule and the slave master control submodule of the slave control module are wirelessly connected. The slave master control submodule is connected to an infrared transmitting submodule. The slave master control submodule is connected to the infrared receiving submodule of the smart infrared device through the infrared transmitting submodule, so that the host master control submodule controls the slave master control submodule to send control commands to the smart infrared device under the timing of the clock submodule.

[0008] Optionally, the main control module further includes a clock interface submodule, which is connected to the host main control submodule.

[0009] Optionally, the clock submodule includes a connected DS1302 chip and interface P1, the host main control submodule includes an ESP32-C3 chip, the clock interface submodule includes a DS1302 interface, the DS1302 interface is connected to the ESP32-C3 chip through SCLK, I / O, and RST interfaces, and the clock submodule is connected to the ESP32-C3 chip of the host main control submodule through interface P1 and the DS1302 interface.

[0010] Optionally, the control module may also include: a battery access submodule, a charging submodule, a second step-down submodule, and a charging interface submodule.

[0011] The battery access submodule is connected to the second step-down submodule and the charging submodule. The second step-down submodule is also connected to the slave master control submodule. The charging interface submodule is connected to the charging submodule and the slave master control submodule.

[0012] Optionally, the battery access submodule includes a battery pack BAT1, the charging submodule includes a TP4059 chip, and the battery pack BAT1 is connected to the TP4059 chip via an interface VBAT; the second step-down submodule includes an ME6209A chip, and the ME6209A chip is connected to the battery pack BAT1 via a 3.7V interface; the charging interface submodule includes a USBC1 interface, and the USBC1 interface is connected to the TP4059 chip of the charging submodule via an interface VBUS; the slave master control submodule includes an ESP01S chip, and the ESP01S chip is connected to the second step-down submodule via a 3.7V interface.

[0013] Optionally, the infrared emitting submodule includes an LED LED1, a resistor R3, and a transistor U4 connected together. The control terminal of the transistor U4 of the infrared emitting submodule is connected to pin 4 of the ESP01S chip.

[0014] Optionally, the main control module is also connected to a display module. The display module includes a screen sub-module, a screen interface sub-module 2, and a button sub-module. The main control module also includes a screen interface sub-module 1, which includes an ESP32-C3 chip. The screen interface sub-module 2 is connected to the ESP32-C3 chip through the interfaces RKEY, LKEY, UPKEY, CENTER, DWKEY, LCD_BL, LCD_CS, LCD_DS, LCD_RES, LCD_SDA, LCD_SCK, +3.3V, and ground pins.

[0015] As described above, this utility model provides an IoT control system for environments without WiFi networks, comprising: a main control module, a slave control module, and a smart infrared device connected to each other. The main control module includes a host main control submodule and a clock submodule connected to each other. The slave control module includes a slave main control submodule. The smart infrared device includes an infrared receiving submodule. The host main control submodule of the main control subsystem and the slave main control submodule of the slave control module are wirelessly connected. The slave main control submodule is connected to an infrared transmitting submodule, which in turn connects to the infrared receiving submodule of the smart infrared device. This allows the host main control submodule to control the slave main control submodule to send control commands to the smart infrared device under the timing of the clock submodule. The clock submodule enables the main control module to have a timing function, allowing it to control the smart infrared device through the slave control module, and to switch the smart infrared device on and off at set times, thus improving the intelligent control of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the framework structure of an IoT control system for an environment without WiFi network, according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal framework structure of an IoT control system for use in environments without WiFi, according to an embodiment of the present invention.

[0019] Figure 3 This is a circuit diagram of the clock submodule according to an embodiment of the present invention;

[0020] Figure 4 Circuit diagram of the main control module of this utility model embodiment;

[0021] Figure 5 Internal framework structure diagram of the host main control submodule of this utility model embodiment;

[0022] Figures 6-14 This is a diagram of the internal integrated circuit of the host main control submodule in an embodiment of this utility model;

[0023] Figures 15-20 This is a circuit diagram of the control module according to an embodiment of the present invention;

[0024] Figure 21This is a circuit diagram of the display module according to an embodiment of the present invention.

[0025] In the attached image:

[0026] 1. Main control module; 2. Slave control module; 3. Intelligent infrared device; 4. Clock submodule; 5. Display module; 11. Control writing submodule; 12. Storage submodule; 13. Startup mode configuration submodule; 14. Automatic program download submodule; 15. USB interface submodule; 16. USB to serial port submodule; 17. Host control submodule interface submodule; 18. First step-down submodule; 19. Enable and reset button submodule; 10. LED peripheral submodule; 21. Battery access submodule; 22. Charging submodule; 23. Second step-down submodule; 24. Charging interface submodule; 25. Infrared emission submodule; 51. Screen submodule; 52. Screen interface submodule; 53. Button submodule. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in the embodiments of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] With the in-depth development of IoT technology, smart home control systems have become familiar to people and entered thousands of households. The smart lighting and smart electrical components included in smart furniture control systems play a vital role in improving the comfort and convenience of family life. Currently, there are many mature smart furniture control systems available, a typical example being the Mi Home Whole House Smart Furniture Control System. This system includes multiple core functions such as air conditioning and fresh air systems, and smart home appliance systems. It features multiple control modes, including voice control, sensor control, and remote mobile phone control, allowing people to control the working status and mode of their home appliances from anywhere, thus intelligently improving their quality of life.

[0030] However, the aforementioned intelligent control system for automating home appliance control relies on an IoT platform, requiring both a real-time connected WiFi wireless network and IoT functional modules within smart furniture. Therefore, the use of intelligent infrared devices has limitations in environments without WiFi, where traditional infrared control methods are used for appliances like air conditioners, and where security is a concern.

[0031] (1) In specific situations where the network is disconnected or there is no WiFi network, the intelligent control system is often not flexible enough in performing local automation control.

[0032] (2) Since the air conditioning equipment in the office is mostly older, it is controlled by traditional infrared remote control and does not have WiFi control function. It cannot be directly connected to the intelligent control system via WiFi. The current intelligent control system often does not have infrared function, so it is necessary to purchase infrared control equipment that can be networked and connected to the intelligent control system. Using the infrared equipment, additional conversion control of air conditioners and other home appliances is performed, which is more complicated and the system deployment cost is higher.

[0033] (3) In an office environment with certain confidentiality requirements, in an environment without WiFi network, the relevant IoT devices need to remove Bluetooth, WiFi and other wireless transmission modules. New air conditioners and other home appliances can also be controlled locally by adding infrared control devices to the intelligent control system. However, since the intelligent control system and the added infrared control devices are transmitted using the WiFi wireless transmission protocol, there is still a risk of violating security and confidentiality regulations, and the system deployment cost is high.

[0034] To solve the above technical problems, such as Figure 1 As shown, this utility model provides an IoT control system for environments without WiFi networks, comprising:

[0035] The main control module 1, the slave control module 2, and the intelligent infrared device 3 are connected together.

[0036] The main control module 1 includes a host main control submodule 011 and a clock submodule 4 connected to each other; the slave control module 2 includes a slave main control submodule 20; the intelligent infrared device 3 includes an infrared receiving submodule.

[0037] The host master control submodule 011 of the main control module 1 and the slave master control submodule 20 of the slave control module 2 are wirelessly connected. The slave master control submodule 20 is connected to an infrared transmitting submodule 25. The slave master control submodule 20 is connected to the infrared receiving submodule of the intelligent infrared device 3 through the infrared transmitting submodule 25, so that the host master control submodule controls the slave master control submodule to send control commands to the intelligent infrared device 3 under the timing of the clock submodule 4.

[0038] Specifically, the main control module 1, slave control module 2, and intelligent infrared device 3 are connected. The main control module 1 includes a connected master main control submodule and a clock submodule 4. The slave control module 2 includes a slave master control submodule 20. The intelligent infrared device 3 includes an infrared receiving submodule. The master main control submodule of the main control subsystem and the slave master control submodule of the slave control module 2 are wirelessly connected. The slave master control submodule 20 is connected to an infrared transmitting submodule 25. The slave master control submodule 20 is connected to the infrared receiving submodule of the intelligent infrared device 3 through the infrared transmitting submodule 25, so that the master main control submodule controls the slave master control submodule to send control commands to the intelligent infrared device 3 under the timing of the clock submodule 4. The clock submodule 4 enables the main control module 1 to have a timing function, and can control the intelligent infrared device 3 through the slave control module, and time the intelligent infrared device 3 to turn on and off, thereby improving the intelligent control of the device.

[0039] In some embodiments, such as Figure 2 and Figure 4 As shown, the main control module 1 further includes a clock interface submodule 013, and the clock submodule 4 is connected to the host main control submodule 011 through the clock interface submodule 013.

[0040] Specifically, the clock submodule 4 is connected to the host main control submodule 011 through the clock interface submodule 013, and can provide timing function for the host main control submodule.

[0041] In some embodiments, such as Figure 5 As shown, the host main control submodule 011 includes: main control chip 11, storage submodule 12, boot mode configuration submodule 13, automatic program download submodule 14, USB interface submodule 15, USB to serial port submodule 16, host control submodule interface submodule 17, first step-down submodule 18, enable and reset button submodule 19, and LED peripheral submodule 10.

[0042] The main control chip 11, the storage submodule 12, the startup mode configuration submodule 13, the automatic program download submodule 14, the USB interface submodule 15, the USB to serial port submodule 16, the host control submodule interface submodule 17, the first step-down submodule 18, the enable and reset button submodule 19, and the LED peripheral submodule 10 are respectively connected to the host main control submodule.

[0043] In this embodiment, as Figure 4 and Figure 6 As shown, the main control chip 11 includes an ESP32-C3 development board chip, a DS1302 chip, and an ESP32-C3 board chip connected together, as well as a TYPE-C interface. The host main control submodule includes an ESP32-C3 chip, and the USB interface submodule 15 includes a USB_Type-c_SUB interface. The ESP32C3 development board chip is connected to the ESP32-C3 chip through the TYPE-C interface and the USB_Type-c_SUB interface.

[0044] Specifically, the ESP32-C3 chip is a low-power, highly integrated MCU system-on-a-chip (SoC). The ESP32-C3 integrates 2.4 GHz Wi-Fi (supporting 802.11b / g / n protocols) and Bluetooth Low Energy (Bluetooth LE 5.0) wireless communication capabilities. This allows devices to easily connect to Wi-Fi networks and communicate with other devices via Bluetooth, reducing the difficulty of network configuration. Wi-Fi data rates reach up to 150 Mbps, and Bluetooth data rates reach up to 2 Mbps. It supports various Wi-Fi and Bluetooth functions, such as WMM, frame aggregation, immediate block acknowledgment, and fragment reassembly, improving data transmission efficiency and stability. The ESP32-C3 uses a 32-bit RISC-V single-core processor with a clock speed of up to 160 MHz, providing excellent processing power and rapid response to user commands. It has built-in 384 KB ROM and 400 KB SRAM (16 KB of which is dedicated to cache), and supports external flash memory, providing ample storage space to meet various application needs. It provides 22 or 16 GPIO ports and multiple digital interfaces such as SPI, UART, I2C, and I2S, supporting various peripheral connections and enhancing the device's expandability and flexibility. It includes two 12-bit SAR analog-to-digital converters and one temperature sensor for analog signal acquisition and processing. Equipped with multiple timers, it supports precise power control, achieving low-power operation by selecting clock frequency, duty cycle, Wi-Fi operating mode, and individually controlling the power supply of internal components. It supports multiple encryption algorithms such as AES-128 / 256, SHA, RSA, RNG, HMAC, and digital signatures, providing robust security protection. It supports secure boot based on the RSA-3072 algorithm and flash encryption based on the AES-128 / 256-XTS algorithm, ensuring device security and data confidentiality. This invention does not specifically limit the encryption functions.

[0045] In this embodiment, as Figure 15 and Figure 6 As shown, the host control submodule interface submodule 17 includes a J2 chip. The J2 chip is connected to the ESP32-C3 chip of the host main control submodule 1 through interfaces GPI09 / B00T, GPI08 / PWM, GPI04 / ADC1 / SDA, GPI05 / ADC2 / SCL, IVDD SPI / GPI011, GPI07, GP106, GPI010, GPI03, and GP102.

[0046] In this embodiment, as Figure 12 , Figure 15 and Figure 6As shown, the first step-down submodule 18 includes a U5 chip, which is connected to the J2 chip via VBUS and PWB interfaces.

[0047] Specifically, the first step-down submodule 18 is used to ensure a stable connection between the host control submodule interface submodule 17 and the host main control submodule.

[0048] In this embodiment, as Figure 14 and Figure 6 As shown, the enable and reset button submodule 19 includes a resistor R4, a switch S1 and a switch S2 connected together. The enable and reset button submodule 19 is connected to the ESP32-C3 chip of the host main control submodule through the interfaces CHIP_EN and GPI09 / BOOT.

[0049] In this embodiment, as Figure 13 and Figure 5 As shown, the LED peripheral submodule 10 includes: resistors R17 and R20, diode D4 and diode D5 connected together. The LED peripheral is connected to the ESP32-C3 chip of the host main control submodule through interfaces SPIHD / GPIO12 and SPIWP / GPIO13.

[0050] Specifically, the LED peripheral is used to indicate the operating status of the main control module 1.

[0051] In this embodiment, as Figure 11 and Figure 10 As shown, the USB to serial port submodule 16 includes a U4 chip, which is connected to the USB_Type-c_SUB interface through the VBUS interface.

[0052] Specifically, the USB to serial port submodule 16 can be used to provide various types of interface access for the host main control submodule.

[0053] In this specific example, such as Figure 6 and Figure 7 As shown, the storage submodule 12 includes a U1 chip, which is connected to the ESP32-C3 chip through the interfaces SPICS0, SPICLK, SPID, and SPIQ.

[0054] Specifically, the storage submodule 12 is used to store data from the host main control submodule.

[0055] In this embodiment, as Figure 8 and Figure 6 As shown, the startup module configuration submodule includes a resistor R1, which is connected to the ESP32-C3 chip of the host main control submodule 1 through the GPI08 / PWM interface.

[0056] Specifically, the startup mode configuration submodule 13 is used to control the startup mode of the host control chip.

[0057] In this embodiment, as Figure 9 , Figure 11 and Figure 6 As shown, the automatic program download submodule 14 includes a resistor R6, a transistor Q1, a resistor R5, and a transistor Q2 connected together. The automatic program download submodule 14 is connected to the ESP32-C3 chip of the main control module 1 through the CHIP_EN interface and the GPI109 / BOOT interface, and is connected to the U4 chip through the RTS interface.

[0058] Specifically, the automatic program download submodule 14 is used to download the program from the development board to the host main control submodule 1. The USB to serial port submodule 16 is connected to the ESP32-C3 chip of the main control chip 11 through the TYPE-C interface to download the program to the host main control submodule 1. The host main control submodule 1 controls the slave main control module 1 according to the program.

[0059] In this embodiment, as Figure 3 and Figure 11 As shown, the clock submodule 4 includes a connected DS1302 chip and interface P1. The host main control submodule 011 includes an ESP32-C3 chip. The clock interface submodule 013 includes a DS1302 interface. The DS1302 interface is connected to the ESP32-C3 chip through SCLK, I / O, and RST interfaces. The clock submodule 4 is connected to the ESP32-C3 chip of the host main control submodule 011 through interface P1 and the DS1302 interface.

[0060] Specifically, the clock submodule 4 is connected to the DS1302 interface via interface P1, thereby enabling the timing task of the main control module 1 and the timing control of the intelligent infrared device 3.

[0061] In some embodiments, such as Figure 2 As shown, the control module 2 also includes: a battery access submodule 21, a charging submodule 22, a second step-down submodule 23, and a charging interface submodule 24.

[0062] The battery access submodule 21 is connected to the second step-down submodule 23 and the charging submodule 22. The second step-down submodule 23 is also connected to the slave master control submodule 20. The charging interface submodule 24 is connected to the charging module 22 and the slave master control submodule.

[0063] In this embodiment, as Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 As shown, the battery access submodule 21 includes a battery pack BAT1, the charging submodule 22 includes a TP4059 chip, and the battery pack BAT1 is connected to the TP4059 chip via the VBAT interface; the second step-down submodule 23 includes an ME6209A chip, and the ME6209A chip is connected to the battery pack BAT1 via the 3.7V interface; the charging interface submodule 24 includes a USBC1 chip, and the USBC1 chip is connected to the TP4059 chip of the charging submodule 22 via the VBUS interface; the slave master control submodule includes an ESP01S chip, and the ESP01S chip is connected to the second step-down submodule via the 3.7V interface.

[0064] Specifically, the ESP01S chip is the ESP-01S chip, a Wi-Fi module. The core processor of this module, the ESP8266, integrates the industry-leading Tensilica L106 ultra-low-power 32-bit microMCU in a small package, featuring a 16-bit reduced mode, supporting clock speeds of 80 MHz and 160 MHz, supporting RTOS, and integrating Wi-Fi MAC / BB / RF / PA / LNA. The ESP-01S Wi-Fi module supports the standard IEEE 802.11 b / g / n protocols and a complete TCP / IP protocol stack. Users can use this module to add networking capabilities to existing devices or build a standalone network controller. The ESP8266 is a high-performance wireless SoC that provides maximum usability at the lowest cost, offering limitless possibilities for embedding Wi-Fi functionality into other systems.

[0065] In some embodiments, such as Figure 16 As shown, the infrared emitting submodule 25 includes an LED lamp LED1, a resistor R3, and a transistor U4 connected together. The control terminal of the transistor U4 of the infrared emitting submodule 25 is connected to pin 4 of the ESP01S chip.

[0066] Specifically, the infrared transmitting submodule 25 sends control commands to the intelligent infrared device 3 under the control of the slave master control submodule 20.

[0067] In some embodiments, such as Figure 2 , Figure 6 and Figure 21As shown, the main control module 1 is also connected to a display module 5. The display module 5 includes a screen sub-module 51, a screen interface sub-module 2, and a button sub-module. The main control module also includes a screen interface sub-module 1, which includes an ESP32-C3 chip. The screen interface sub-module 2 is connected to the ESP32-C3 chip through the interfaces RKEY, LKEY, UPKEY, CENTER, DWKEY, LCD_BL, LCD_CS, LCD_DS, LCD_RES, LCD_SDA, LCD_SCK, +3.3V, and ground pins.

[0068] Specifically, the display module 5 is used to display the operating status of the main control module 1, which can help users troubleshoot problems.

[0069] In summary, this research and development aims to solve the problem of local automated control of air conditioning equipment in a secure and confidential environment, employing traditional infrared control as the primary method. Due to the strong directional nature of infrared control, this system adopts a master-slave module design. The master module controls the air conditioner's on / off state, mode, and temperature based on a time-based schedule. The slave module is equipped with an infrared signal transmitter and features infrared encoding transmission functionality. The infrared transmitters of the slave modules are positioned in a straight line with the infrared receivers of the air conditioners to ensure proper communication. Control data transmission between the master and slave modules is achieved via the domestic ESPNOW wireless protocol. Depending on the scenario requirements, data transmission can be implemented with one master and one cluster, or one master and multiple slaves, demonstrating good system scalability.

[0070] The main system is developed using the ESP32-C3 chip module. The ESP32-C3 is a domestically produced chip designed by Espressif Systems, integrating WiFi, Bluetooth, and ESPNOW wireless transmission functions. Its stable performance has led to its widespread application in IoT projects. To reduce costs, the hardware circuitry is developed using a Heze development board, which features peripherals such as buttons, a TFT LCD display, serial communication, and power supply voltage control. An external DS1302 clock module is connected via DuPont wires to complete the main system hardware circuitry. The system uses a Type-C port connected to a 5V power supply for wired power. The main system software uses VSCode + PlatformIO as the development environment, employs the Arduino architecture for programming, and utilizes open-source software libraries for rapid development. Main system functions include: WiFi time synchronization upon power-on, reading from the external DS1302 clock module, ESPNOW wireless communication protocol data transmission, graphical interface display, and button control.

[0071] The system was developed using the ESP01S module. The ESP01S is a domestically designed chip from Espressif Systems, featuring wireless transmission capabilities such as Wi-Fi and ESPNOW. Compared to the ESP32C3, it is smaller and less expensive. The hardware circuitry was designed using the domestic PCB design software LCSC EDA, which was used to build the infrared transmitting circuit, smart charging circuit, and other functionalities. The software development environment used VSCode + PlatformIO, with programming based on the Arduino architecture and utilizing open-source software libraries for rapid development. The system features Wi-Fi code transmission, ESPNOW wireless communication protocol data transmission, and low-power design.

[0072] It should be noted that the above description describes some embodiments of the present invention. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0073] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of the present invention as described above, which are not provided in the details for the sake of brevity.

[0074] Although the present invention has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures may be used with the embodiments discussed.

[0075] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this utility model should be included within the protection scope of this utility model.

Claims

1. An IoT control system for environments without WiFi networks, characterized in that, include: The main control module (1), the slave control module (2), and the intelligent infrared device (3) are connected together; The main control module (1) includes a host main control submodule (011) and a clock submodule (4) connected to each other; the slave control module (2) includes a slave main control submodule (20); the intelligent infrared device (3) includes an infrared receiving submodule. The host master control submodule (011) and the slave master control submodule of the slave control module (2) are wirelessly connected. The slave master control submodule (20) is connected to an infrared transmitting submodule (25). The slave master control submodule (20) is connected to the infrared receiving submodule of the intelligent infrared device (3) through the infrared transmitting submodule (25), so that the host master control submodule (011) controls the slave master control submodule (20) to send control commands to the intelligent infrared device (3) under the timing of the clock submodule (4).

2. The IoT control system for environments without WiFi networks according to claim 1, characterized in that, The main control module (1) further includes a clock interface submodule (013), which is connected to the host main control submodule (011) through the clock interface submodule (013).

3. The IoT control system for environments without WiFi networks according to claim 2, characterized in that, The clock submodule (4) includes a connected DS1302 chip and interface P1. The host main control submodule (011) includes an ESP32-C3 chip. The clock interface submodule (013) includes a DS1302 interface. The DS1302 interface is connected to the ESP32-C3 chip through SCLK, I / O, and RST interfaces. The clock submodule (4) is connected to the ESP32C3 chip of the host main control submodule (011) through interface P1 and the DS1302 interface.

4. The IoT control system for environments without WiFi networks according to claim 3, characterized in that, The control module (2) also includes: a battery access submodule (21), a charging submodule (22), a second step-down submodule (23), and a charging interface submodule (24). The battery access submodule (21) is connected to the second step-down submodule (23) and the charging submodule (22). The second step-down submodule (23) is also connected to the slave master control submodule (20). The charging interface submodule (24) is connected to the charging submodule (22) and the charging interface submodule (24) is connected to the slave master control submodule (20).

5. The IoT control system for environments without WiFi networks according to claim 4, characterized in that, The battery access submodule (21) includes a battery pack BAT1, and the charging submodule (22) includes a TP4059 chip. The battery pack BAT1 is connected to the TP4059 chip via the VBAT interface. The second step-down submodule (23) includes an ME6209A chip. The ME6209A chip is connected to the battery pack BAT1 via the 3.7V interface. The charging interface submodule (24) includes a USBC1 interface. The USBC1 interface is connected to the TP4059 chip of the charging submodule (22) via the VBUS interface. The slave master control submodule (20) includes an ESP01S chip. The ESP01S chip is connected to the second step-down submodule (23) via the 3.7V interface.

6. The IoT control system for environments without WiFi networks according to claim 5, characterized in that, The infrared emitting submodule (25) includes an LED lamp LED1, a resistor R3, and a transistor U4 connected together. The control terminal of the transistor U4 of the infrared emitting submodule (25) is connected to pin 4 of the ESP01S chip.

7. The IoT control system for environments without WiFi networks according to claim 6, characterized in that, The main control module (1) is also connected to a display module (5). The display module (5) includes a screen sub-module (51), a screen interface sub-module (52), and a button sub-module (53) connected to each other. The main control module (1) also includes a screen interface sub-module (012). The screen interface sub-module (012) includes an ESP32-C3 chip. The screen interface sub-module (52) is connected to the ESP32-C3 chip through the interfaces RKEY, LKEY, UPKEY, CENTER, DWKEY, LCD_BL, LCD_CS, LCD_DS, LCD_RES, LCD_SDA, LCD_SCK, +3.3V, and ground pins.

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