Intelligent concentrator

Abstract

The utility model belongs to the technical field of electronic control, and relates to an intelligent concentrator, which comprises a controller, and a backlight driving circuit, a USB (Universal Serial Bus) to serial port circuit, a buzzer circuit, a temperature and humidity circuit, a DC-DC (Direct Current-Direct Current) circuit, a key board circuit, an Internet of Things communication module and an LCD (Liquid Crystal Display) screen which are electrically connected with the controller, the controller is used for controlling the backlight driving circuit, the USB to serial port circuit, the buzzer circuit, the temperature and humidity circuit, the DC-DC circuit, the key board circuit and the Internet of Things communication module; the backlight driving circuit is used for converting electric energy into light energy and adjusting the brightness of the LCD display screen; the USB to serial port circuit is used for converting a serial communication protocol into a universal serial bus (USB) protocol. The system is high in integration level, multifunctional, efficient, energy-saving, easy to manage and high in expandability, and can be universally applied to the fields of industrial automation, smart home, Internet of Things and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic control technical field, more specifically, relate to an intelligent concentrator. BACKGROUND

[0002] As a device that controls the operation of equipment through wires or wireless connection, the wire controller plays a crucial role in modern technology field. It allows users to remotely control and monitor devices or systems through simple key or touch operations, without the need to directly touch the device itself, greatly improving the convenience of operation. For example, using a wire controller on a music player or mobile phone, users can easily control the volume, play / pause, and other operations without frequent operation of the device screen. Despite the great advantages of wire controllers in various fields, there are still some defects and challenges in the existing technology: complex wiring and high cost: wire control technology relies on wires or wireless signals for transmission. For scenarios that require long-distance transmission or complex layout, wiring work is tedious and costly. In addition, although wireless signal transmission avoids the trouble of wiring, it may be affected by environmental interference and signal attenuation, affecting the control effect. SUMMARY

[0003] In view of the above defects of the prior art, the utility model provides an intelligent concentrator, which comprises:

[0004] A controller, a backlight driving circuit, a USB-to-serial port circuit, a buzzer circuit, a temperature and humidity circuit, a DC-DC circuit, a key pad circuit, an Internet of Things communication module, and an LCD display screen connected to the controller; the controller is used to control the backlight driving circuit, the USB-to-serial port circuit, the buzzer circuit, the temperature and humidity circuit, the DC-DC circuit, the key pad circuit, and the Internet of Things communication module; the backlight driving circuit is used to convert electrical energy into light energy and adjust the brightness of the LCD display screen; the USB-to-serial port circuit is used to convert serial communication protocol into universal serial bus USB protocol; the buzzer circuit is used to issue alarm, reminder, or prompt sound signals; the temperature and humidity circuit is used to measure environmental temperature and humidity and convert the measurement results into electrical signals; the DC-DC circuit is used to power the controller and the Internet of Things communication module; the key pad circuit is used for key control; the Internet of Things communication module is used for communication with external electronic devices; and the LCD display screen is used to display device information and status, temperature and humidity values.

[0005] Preferably, the backlight driving circuit comprises a 2.4 / 2.8-inch LCD backlight driving circuit and a 4-inch LCD backlight driving circuit.

[0006] Preferably, the USB-to-serial circuit comprises: one end of the capacitor C17 is connected with the pin 16 of the USB-to-UART bridge chip U4, one end of the capacitor C16 is connected with the pin 4 of the USB-to-UART bridge chip U4, one end of the resistor R19 is connected with the pin 5 of the USB-to-UART bridge chip U4, one end of the resistor R20 is connected with the pin 6 of the USB-to-UART bridge chip U4.

[0007] Preferably, the buzzer circuit comprises: one end of the buzzer B1 is connected with the anode of the diode D6 and the collector of the triode Q3 respectively, one end of the resistor R25 and one end of the resistor R28 are connected with the base of the triode Q3 respectively, the emitter of the triode Q3 and the other end of the diode D28 are grounded, and the negative electrode of the diode D6 is connected with the other end of the buzzer B1.

[0008] Preferably, the temperature and humidity circuit comprises: one end of the resistor R21 is connected with the pin 1 of the temperature and humidity sensor U5, one end of the resistor R22 is connected with the pin 6 of the temperature and humidity sensor U5, the other end of the resistor R21 and one end of the capacitor C18 are connected, the pin 6 of the temperature and humidity sensor U5 is connected with the pin A1 of the temperature and humidity sensor U7, and one end of the capacitor C28 is connected with the pin B1 of the temperature and humidity sensor U7.

[0009] Preferably, the DC-DC circuit comprises: one end of the capacitor C6 is connected with the pin 1 of the single-chip step-down switching voltage stabilizer U1, one end of the resistor R2, one end of the resistor R4 and one end of the capacitor C5 are connected with the pin 3 of the single-chip step-down switching voltage stabilizer U1 respectively, one end of the capacitor C1, one end of the resistor R1 and one end of the resistor R3 are connected with the pin 4 of the single-chip step-down switching voltage stabilizer U1 respectively, the negative electrode of the diode D1, one end of the capacitor C2, one end of the capacitor C3 and one end of the capacitor C4 are connected with the pin 5 of the single-chip step-down switching voltage stabilizer U1 respectively, the other end of the capacitor C6 and one end of the inductor L1 are connected with the pin 6 of the single-chip step-down switching voltage stabilizer U1 respectively, the other end of the resistor R4, the other end of the capacitor C5, one end of the capacitor C7, one end of the capacitor C8 and one end of the capacitor C9 are connected with the other end of the inductor L1 respectively.

[0010] Preferably, the key board circuit comprises: one end of the resistor R34 is connected with the pin 1 of the terminal J7, and one end of the resistor R35 is connected with the pin 2 of the terminal J7.

[0011] Preferably, the Internet of Things communication module comprises: EMC3090.

[0012] Preferably, the 2.4 / 2.8 inch LCD backlight driving circuit comprises: one end of the resistor R18 and one end of the resistor R17 are connected with the gate of the triode Q2 respectively, the source of the triode Q2 is grounded, and one end of the resistor R36 is connected with the drain of the triode Q2.

[0013] Preferably, the 4-inch LCD backlight drive circuit comprises: the pin 1 of the boost converter device U2 is connected with the anode of the diode D2 and one end of the inductor L2 respectively, the pin 3 of the boost converter device U2 is connected with one end of the resistor R10, the other end of the resistor R10 is connected with one end of the resistor R13, the other end of the resistor R13 is grounded, the pin 4 of the boost converter device U2 is connected with one end of the resistor R9 and one end of the resistor R12 respectively, and the pin 6 of the boost converter device U2 is connected with the other end of the inductor L2, one end of the capacitor C11 and one end of the capacitor C12 respectively.

[0014] The intelligent concentrator has the following beneficial effects: high integration, multiple circuits and modules are integrated together, the functions are concentrated and simplified, the complexity and cost of the system are reduced; multi-functionality: the intelligent concentrator has multiple functions, such as data communication, environment monitoring, user interaction, etc., and can meet the needs of different application scenarios; high efficiency and energy saving: the intelligent concentrator adopts advanced circuit design and control algorithm, realizes efficient data processing and energy utilization, and reduces energy consumption and operation cost; easy to manage: the intelligent concentrator provides an intuitive user interface and remote management function, and users can conveniently monitor and manage the running state and configuration information of the system; strong scalability: the intelligent concentrator supports multiple communication protocols and standards, can interconnect with other intelligent devices, and construct more complex Internet of Things application scenarios; can be widely used in industrial automation, smart home, Internet of Things and other fields BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor. The present application will be further described below in combination with the drawings and embodiments. In the drawings:

[0016] Figure 1 is a block diagram of the intelligent concentrator of the present application;

[0017] Figure 2 is a circuit diagram of the 2.4 / 2.8-inch LCD backlight drive circuit in the intelligent concentrator of the present application;

[0018] Figure 3 is a circuit diagram of the 4-inch LCD backlight drive circuit in the intelligent concentrator of the present application;

[0019] Figure 4Is the USB-to-serial circuit circuit diagram in the intelligent concentrator of the utility model;

[0020] Figure 5 Is the buzzer circuit circuit diagram in the intelligent concentrator of the utility model;

[0021] Figure 6 Is the temperature and humidity circuit circuit diagram in the intelligent concentrator of the utility model;

[0022] Figure 7 Is the DC-DC circuit circuit diagram in the intelligent concentrator of the utility model;

[0023] Figure 8 Is the key board circuit circuit diagram in the intelligent concentrator of the utility model;

[0024] Figure 9 Is the RTC circuit circuit diagram in the intelligent concentrator of the utility model. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0027] In addition, if the embodiments of the utility model involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one feature. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0028] Please refer to Figure 1 , the constituent block diagram of the intelligent concentrator of the utility model. As Figure 1As shown, in the intelligent concentrator provided by the first embodiment of the utility model, at least includes, controller, with the controller through the electrical connection's backlight drive circuit, USB conversion serial port circuit, buzzer circuit, temperature and humidity circuit, DC-DC circuit, key board circuit, internet of things communication module, LCD display screen;The controller is used for controlling backlight drive circuit, USB conversion serial port circuit, buzzer circuit, temperature and humidity circuit, DC-DC circuit, key board circuit and internet of things communication module;Backlight drive circuit is used for converting electric energy into light energy, adjusts the brightness of LCD display screen;USB conversion serial port circuit is used for converting serial communication protocol into universal serial bus USB protocol;Buzzer circuit is used for sending alarm, reminding or prompting sound signal;Temperature and humidity circuit is used for measuring environmental temperature and humidity, and converts the measurement result into electric signal;DC-DC circuit is used for the power supply of controller and internet of things communication module;Key board circuit is used for key control;Internet of things communication module is used for communicating with external electronic equipment, and LCD display screen is used for displaying device information and state, temperature and humidity value.

[0029] In specific implementation, the controller can be UAW052 module. UAW052 module has wireless communication function. Through wireless network, UAW052 module can issue and report broadcast information in real time, realizes remote monitoring and control function. UAW052 module supports IIC interface, can carry out efficient data exchange with various sensors. For example, through IIC interface, UAW052 can read the parameters of sensor in temperature and humidity circuit, monitors environmental temperature and humidity change in real time. Meanwhile, it can also read the key state in key board circuit, realizes real-time response of user input. This multi-interface support makes UAW052 module can access various sensors and actuators flexibly in industrial automation and environmental monitoring system, satisfies diversified control demand. UAW052 module also has communication ability with external RTC calendar circuit. Through accurate time management, UAW052 can provide accurate time information for users, and supports timing task and schedule management function. This feature is particularly important in smart home and industrial automation system, can ensure that each task is executed on time, improves the work efficiency of system.

[0030] In communication aspect, UAW052 module communicates with EMC3090 module through serial port. As a stable and reliable communication mode, serial port communication can ensure that the data transmission between UAW052 and EMC3090 is accurate. This communication mode is not only suitable for short-distance data transmission, but also can maintain stable communication performance in complex environment.

[0031] The UAW052 module adopts a microprocessor as the core control unit, responsible for processing various input signals and output control instructions. Through the built-in wireless communication module, IIC interface, serial communication module, and other hardware resources, the UAW052 can achieve efficient interaction with the external environment. At the same time, it also has powerful software support, including embedded operating systems, drivers, and application software, providing users with rich functional interfaces and flexible programming environments.

[0032] In specific implementation, the Internet of Things communication module includes: EMC3090. The EMC3090 module is a combination of Wi-Fi and BLE (Bluetooth Low Energy), with Wi-Fi and Bluetooth communication functions. The standard AT firmware built into the EMC3090 module allows users to achieve fast connection of products through "development-free" and "zero-code" methods, greatly shortening the development cycle and online period of customers' complete machine products. The working voltage of the EMC3090 module is 3.3V, and the working temperature range is between -20℃ and 85℃, with high environmental adaptability. In terms of hardware configuration, it uses Cortex M33 core with a main frequency of up to 100MHz, equipped with 256K bytes of SRAM, 384K bytes of ROM, and 2M bytes of XIP Flash, providing sufficient storage space and processing power.

[0033] In terms of communication, the EMC3090 module supports 2.4GHz Wi-Fi conforming to IEEE 802.11b / g / n standards, and low-power Bluetooth conforming to BLE4.2 specifications, supporting Bluetooth network configuration. These features enable the module to be widely used in Internet of Things data communication, achieving data acquisition and device control through rich peripheral interfaces. The module can communicate directly with mobile devices through low-power Bluetooth, or connect to the Internet of Things cloud service platform through Wi-Fi network, realizing the interconnection of all things.

[0034] The EMC3090 module is built-in with a super-high-integration Wi-Fi / BLE Combo microcontroller MX1300CF, which provides the necessary computing power and stable Wi-Fi / BLE connectivity for Internet of Things data terminals. When the module receives a communication request from an external device, it will process it according to the type (Wi-Fi or BLE) and destination address of the request through the internal communication protocol stack. For Wi-Fi communication, the module will connect to the specified Wi-Fi network and exchange data through it; for BLE communication, the module will establish a Bluetooth connection with the requesting device and communicate data.

[0035] The Internet of Things communication module is a key component for the intelligent concentrator to realize remote communication and data transmission. Through the Internet of Things communication module, the intelligent concentrator can be connected to the Internet or other networks to realize remote transmission of data and remote control of devices.

[0036] The Internet of Things communication module supports multiple communication protocols and standards, such as Wi-Fi, Bluetooth, Zigbee, LoRa, etc., and can select the appropriate communication method according to actual needs. Through the Internet of Things communication module, the intelligent concentrator can interconnect with other smart devices to build Internet of Things application scenarios such as smart home and smart factory.

[0037] In specific implementation, the backlight driving circuit can further include a 2.4 / 2.8-inch LCD backlight driving circuit and a 4-inch LCD backlight driving circuit.

[0038] The intelligent concentrator of the present application is equipped with 2.4 / 2.8-inch and 4-inch LCD backlight driving circuits. The main function of these circuits is to provide backlight illumination to ensure that the LCD display screen can clearly display information under various lighting conditions. The backlight driving circuit adjusts and stabilizes the brightness by controlling the current flowing through the backlight panel LED. PWM (Pulse Width Modulation) adjusts the brightness by changing the duty cycle, which is both energy-saving and efficient. The 2.4 / 2.8-inch LCD backlight driving circuit is suitable for smaller size display screens and is suitable for application scenarios that require compact design. The 4-inch LCD backlight driving circuit is suitable for larger size display screens and provides a wider display area for viewing more information.

[0039] Figure 2 is the 2.4 / 2.8-inch LCD backlight driving circuit circuit diagram in the intelligent concentrator of the present application. As shown in Figure 2 The 2.4 / 2.8-inch LCD backlight driving circuit includes: the gate of the triode Q2 is connected with one end of the resistor R18 and one end of the resistor R17, the source of the triode Q2 is grounded, and the drain of the triode Q2 is connected with one end of the resistor R36.

[0040] Figure 3 is the 4-inch LCD backlight driving circuit circuit diagram in the intelligent concentrator of the present application. As shown in Figure 3As shown in the figure, the 4-inch LCD backlight driving circuit includes: the pin 1 of the boost converter device U2 is connected with the anode of the diode D2 and one end of the inductor L2 respectively, the pin 3 of the boost converter device U2 is connected with one end of the resistor R10, the other end of the resistor R10 is connected with one end of the resistor R13, the other end of the resistor R13 is grounded, the pin 4 of the boost converter device U2 is connected with one end of the resistor R9 and one end of the resistor R12 respectively, the pin 6 of the boost converter device U2 is connected with the other end of the inductor L2, one end of the capacitor C11 and one end of the capacitor C12 respectively.

[0041] Figure 4 The USB-to-serial circuit in the intelligent concentrator is shown in the figure. Figure 4 As shown in the figure, the USB-to-serial circuit includes: the pin 16 of the USB-to-UART bridge chip U4 is connected with one end of the capacitor C17, the pin 4 of the USB-to-UART bridge chip U4 is connected with one end of the capacitor C16, the pin 5 of the USB-to-UART bridge chip U4 is connected with one end of the resistor R19, and the pin 6 of the USB-to-UART bridge chip U4 is connected with one end of the resistor R20.

[0042] The USB-to-serial circuit realizes the conversion between the computer USB interface and the physical serial port, and adds the serial port function to the computer or other USB host without the serial port. The USB-to-serial circuit is responsible for converting the USB signal into a serial signal for communication with external devices. The USB-to-serial device not only supports hot plug and fast transmission speed, but also is compatible with various operating systems such as Windows, Linux, Android and macOS.

[0043] The application scenarios of the USB-to-serial circuit are wide, including MCU download, serial port debugging, embedded serial port console, smart home, etc. Through the USB-to-serial circuit, users can easily connect traditional serial port devices to modern computers to realize data transmission and control.

[0044] Figure 5 The buzzer circuit in the intelligent concentrator is shown in the figure. Figure 5 As shown in the figure, the buzzer circuit includes: one end of the buzzer B1 is connected with the anode of the diode D6 and the collector of the triode Q3 respectively, the base of the triode Q3 is connected with one end of the resistor R25 and one end of the resistor R28 respectively, the emitter of the triode Q3 and the other end of the diode D28 are grounded, and the negative electrode of the diode D6 is connected with the other end of the buzzer B1.

[0045] The buzzer circuit is used to generate a continuous and sharp sound signal, mainly for the purpose of alarm, reminder or prompt. The buzzer circuit controls the sound of the buzzer by receiving signals from the controller, and realizes the functions of alarm, prompt, etc. In the intelligent concentrator, the buzzer circuit is often used to indicate the device state, alarm information or user interaction prompt.

[0046] Figure 6 The temperature and humidity circuit in the intelligent concentrator of the utility model is a circuit diagram. Figure 6 As shown in the figure, the temperature and humidity circuit comprises: the pin 1 of the temperature and humidity sensor U5 is connected with one end of the resistor R21, the pin 6 of the temperature and humidity sensor U5 is connected with one end of the resistor R22, the other end of the resistor R21 is connected with one end of the capacitor C18, the pin 6 of the temperature and humidity sensor U5 is connected with the pin A1 of the temperature and humidity sensor U7, and the pin B1 of the temperature and humidity sensor U7 is connected with one end of the capacitor C28.

[0047] The temperature and humidity circuit is mainly used for measuring the environmental temperature and humidity, and converting the measurement results into electrical signals. According to the size of the electrical signal, the high and low of the environmental temperature and humidity can be judged, and corresponding control measures can be taken in time to ensure that the environmental temperature and humidity is within the normal range.

[0048] In the intelligent concentrator, the temperature and humidity circuit can be applied in many fields, such as household appliances, agricultural field, industrial field and medical field, by measuring and controlling the environmental temperature and humidity, the quality and stability of the production and living environment can be improved.

[0049] Figure 7 The DC-DC circuit in the intelligent concentrator of the utility model is a circuit diagram. Figure 7 As shown in the figure, the DC-DC circuit comprises: the pin 1 of the single-chip step-down switching stabilizer U1 is connected with one end of the capacitor C6, the pin 3 of the single-chip step-down switching stabilizer U1 is respectively connected with one end of the resistor R2, one end of the resistor R4 and one end of the capacitor C5, the pin 4 of the single-chip step-down switching stabilizer U1 is respectively connected with one end of the capacitor C1, one end of the resistor R1 and one end of the resistor R3, the pin 5 of the single-chip step-down switching stabilizer U1 is respectively connected with the negative electrode of the diode D1, one end of the capacitor C2, one end of the capacitor C3, one end of the capacitor C4, the pin 6 of the single-chip step-down switching stabilizer U1 is respectively connected with the other end of the capacitor C6 and one end of the inductor L1, and the other end of the inductor L1 is respectively connected with the other end of the resistor R4, the other end of the capacitor C5, one end of the capacitor C7, one end of the capacitor C8 and one end of the capacitor C9.

[0050] The DC-DC circuit is a kind of converter from DC to DC, which is used to convert one kind of DC voltage into another kind of DC voltage. In the intelligent concentrator, the main function of the DC-DC circuit is to provide stable power supply to ensure that each circuit and module can work normally.

[0051] The DC-DC circuit has the advantages of high efficiency, small size, low power consumption, etc., and can output different voltages and currents according to actual needs to meet the power supply needs of different circuits and modules in the intelligent concentrator.

[0052] Figure 8 It is the key plate circuit circuit diagram in the intelligent concentrator of the utility model. Figure 8 As shown in the figure, the pin 1 of the terminal J7 is connected with one end of the resistor R34, and the pin 2 of the terminal J7 is connected with one end of the resistor R35.

[0053] The key plate circuit is an important interface for the intelligent concentrator to interact with users. Through the key plate circuit, users can input instructions, select functions or set parameters. The key plate circuit is usually composed of multiple keys and corresponding control circuits, and each key corresponds to a specific function or operation.

[0054] The key plate circuit has the advantages of simplicity, ease of use, and sensitive response, and can perform corresponding processing and control according to user input to improve user experience.

[0055] The LCD display screen is an important output device of the intelligent concentrator, which is used to display various information, parameters and states. Through the LCD display screen, users can intuitively understand the running state, configuration information and alarm information of the intelligent concentrator.

[0056] The LCD display screen has the advantages of high definition, low power consumption, long service life, etc., and can select appropriate size and resolution according to actual needs. In the intelligent concentrator, the LCD display screen is used in cooperation with the backlight driving circuit to ensure clear display of information under various lighting conditions.

[0057] In specific implementation, the utility model can also be provided with an RTC (Real Time Clock, real time clock) circuit. Figure 9 It is the RTC circuit circuit diagram in the intelligent concentrator of the utility model. Figure 9As shown, pin 1 of calendar circuit chip U6 is connected to one end of capacitor C27 and one end of crystal oscillator X1, respectively. Pin 2 of calendar circuit chip U6 is connected to the other end of crystal oscillator X1. Pin 5 of calendar circuit chip U6 is connected to one end of resistor R39. Pin 6 of calendar circuit chip U6 is connected to one end of resistor R37. The other end of resistor R37 is connected to the other end of resistor R39. Pin 8 of calendar circuit chip U6 is connected to one end of capacitor C26, one end of capacitor C25, the negative terminal of diode D7, and the negative terminal of diode D8, respectively. The positive terminal of diode D7 is connected to one end of resistor R42, the positive terminal of DC power supply J9, the positive terminal of DC power supply J11, the positive terminal of DC power supply J10, and one end of resistor R40, respectively. The other end of resistor R40 is connected to the negative terminal of diode D9. The positive terminal of diode D9 is connected to the positive terminal of diode D8 and the other end of resistor R42.

[0058] The RTC circuit provides accurate date and time information. It can operate independently of the controller while maintaining accurate date and time. In smart hubs, the RTC circuit can be used to record event timestamps, generate scheduled tasks, or perform time synchronization. Through the RTC circuit, users can easily obtain the current date and time information and perform corresponding processing and control.

[0059] The beneficial effects of this utility model, through the design of the above embodiments, are as follows: high integration, integrating multiple circuits and modules together, realizing the centralization and simplification of functions, and reducing the complexity and cost of the system; multifunctionality: the smart hub has multiple functions, such as data communication, environmental monitoring, and user interaction, which can meet the needs of different application scenarios; high efficiency and energy saving, the smart hub adopts advanced circuit design and control algorithms to achieve efficient data processing and energy utilization, reducing energy consumption and operating costs; easy management, the smart hub provides an intuitive user interface and remote management functions, allowing users to easily monitor and manage the system's operating status and configuration information; strong scalability, the smart hub supports multiple communication protocols and standards, and can interconnect with other smart devices to build more complex IoT application scenarios; and it is widely applicable to fields such as industrial automation, smart homes, and the Internet of Things.

[0060] This utility model has been described based on specific embodiments, but those skilled in the art will understand that various changes and equivalent substitutions can be made without departing from the scope of this utility model. Furthermore, to adapt to specific applications of this utility model, numerous modifications can be made without departing from its protection scope. Therefore, this utility model is not limited to the specific embodiments disclosed herein, but includes all embodiments falling within the protection scope of the claims.

Claims

1. An intelligent hub, characterized by The application relates to a controller, a backlight driving circuit, a USB-to-serial port circuit, a buzzer circuit, a temperature and humidity circuit, a DC-DC circuit, a key plate circuit, an Internet of Things communication module and an LCD display screen connected with the controller through electricity; the controller is used for controlling the backlight driving circuit, the USB-to-serial port circuit, the buzzer circuit, the temperature and humidity circuit, the DC-DC circuit, the key plate circuit and the Internet of Things communication module. The backlight driving circuit is used for converting electric energy into light energy and adjusting the brightness of the LCD display screen; the USB-to-serial port circuit is used for converting a serial communication protocol into a universal serial bus (USB) protocol; the buzzer circuit is used for sending alarm, reminding or prompting sound signals; the temperature and humidity circuit is used for measuring environmental temperature and humidity and converting the measurement results into electric signals; the DC-DC circuit is used for supplying power for the controller and the Internet of Things communication module; the key plate circuit is used for key control; the Internet of Things communication module is used for communicating with external electronic equipment; and the LCD display screen is used for displaying device information and states and temperature and humidity values. The backlight driving circuit comprises 2.4 / 2.8-inch LCD backlight driving circuits and 4-inch LCD backlight driving circuits.

2. The intelligent hub of claim 1, wherein, The USB-to-serial port circuit comprises that one end of a capacitor C17 is connected with a pin 16 of a USB-to-UART bridge chip U4, one end of a capacitor C16 is connected with a pin 4 of the USB-to-UART bridge chip U4, one end of a resistor R19 is connected with a pin 5 of the USB-to-UART bridge chip U4 and one end of a resistor R20 is connected with a pin 6 of the USB-to-UART bridge chip U4.

3. The intelligent hub of claim 1, wherein, The buzzer circuit comprises that one end of a buzzer B1 is connected with an anode of a diode D6 and a collector of a triode Q3, one end of a resistor R25 and one end of a resistor R28 are connected with a base of the triode Q3, an emitter of the triode Q3 and the other end of a diode D28 are grounded, and the other end of the buzzer B1 is connected with a cathode of the diode D6.

4. The intelligent hub of claim 1, wherein, The temperature and humidity circuit comprises that a pin 1 of a temperature and humidity sensor U5 is connected with one end of a resistor R21, a pin 6 of the temperature and humidity sensor U5 is connected with one end of a resistor R22, the other end of the resistor R21 is connected with one end of a capacitor C18, the pin 6 of the temperature and humidity sensor U5 is connected with a pin A1 of a temperature and humidity sensor U7, and a pin B1 of the temperature and humidity sensor U7 is connected with one end of a capacitor C28.

5. The intelligent hub of claim 1, wherein, ​ 6. The intelligent hub of claim 1, wherein, The DC-DC circuit includes: the pin 1 of the single-chip voltage regulator U1 is connected with one end of the capacitor C6, the pin 3 of the single-chip voltage regulator U1 is connected with one end of the resistor R2, one end of the resistor R4 and one end of the capacitor C5 respectively, the pin 4 of the single-chip voltage regulator U1 is connected with one end of the capacitor C1, one end of the resistor R1 and one end of the resistor R3 respectively, the pin 5 of the single-chip voltage regulator U1 is connected with the negative electrode of the diode D1, one end of the capacitor C2, one end of the capacitor C3 and one end of the capacitor C4 respectively, the pin 6 of the single-chip voltage regulator U1 is connected with the other end of the capacitor C6 and one end of the inductor L1 respectively, the other end of the inductor L1 is connected with the other end of the resistor R4, the other end of the capacitor C5, one end of the capacitor C7, one end of the capacitor C8 and one end of the capacitor C9 respectively.

7. The intelligent hub of claim 1, wherein, The key board circuit includes: the pin 1 of the terminal J7 is connected with one end of the resistor R34, the pin 2 of the terminal J7 is connected with one end of the resistor R35.

8. The intelligent hub of claim 1, wherein, The Internet of Things communication module includes: EMC3090.

9. The intelligent hub of claim 2, wherein, The 2.4 / 2.8 inch LCD backlight drive circuit includes: the gate of the triode Q2 is connected with one end of the resistor R18 and one end of the resistor R17 respectively, the source of the triode Q2 is grounded, and the drain of the triode Q2 is connected with one end of the resistor R36.

10. The intelligent hub of claim 2, wherein, The 4 inch LCD backlight drive circuit includes: the pin 1 of the boost converter device U2 is connected with the positive electrode of the diode D2 and one end of the inductor L2 respectively, the pin 3 of the boost converter device U2 is connected with one end of the resistor R10, the other end of the resistor R10 is connected with one end of the resistor R13, the other end of the resistor R13 is grounded, the pin 4 of the boost converter device U2 is connected with one end of the resistor R9 and one end of the resistor R12 respectively, and the pin 6 of the boost converter device U2 is connected with the other end of the inductor L2, one end of the capacitor C11 and one end of the capacitor C12 respectively.

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