A wireless fan control system

Abstract

The utility model relates to computer peripheral technology field, concretely relates to a wireless fan control system, and this control system includes host computer control module, and host computer control module includes the USB interface for connecting computer host, main processor and with first wireless communication unit electric connection of main processor, fan management module, fan management module includes second wireless communication unit and at least one fan interface with second wireless communication unit electric connection, a plurality of fans are used for carrying out electric connection with fan interface through electric wire, host computer control module passes through first wireless communication unit and the second wireless communication unit of fan management module establishes wireless connection. The utility model aims at providing a wireless fan control system, and it aims at solving the problem of computer cooling fan control scheme wiring complex, poor expandability and intelligent degree deficiency in prior art.

Description

Technical Field

[0001] This utility model relates to the field of computer peripheral technology, specifically to a wireless fan control system. Background Technology

[0002] With the rapid development of computer hardware performance, the power consumption and heat generation of its core components, such as the central processing unit (CPU) and graphics processing unit (GPU), have also increased dramatically. In order to ensure the stable operation of the computer, an efficient heat dissipation system has become crucial, among which cooling fans are currently the most mainstream active cooling components.

[0003] In existing technologies, computer cooling fans are typically controlled in the following ways:

[0004] Direct motherboard connection control: The fan is directly connected to a pre-installed 4-pin or 3-pin connector on the computer motherboard, and the motherboard's BIOS / UEFI system automatically adjusts the speed based on data from a temperature sensor or via software. The disadvantage of this method is the limited number of motherboard connectors. When a large number of fans need to be installed (such as in high-performance workstations or server chassis), the number of connectors becomes insufficient. At the same time, the complex cabling also presents challenges for cable management and airflow control within the chassis.

[0005] External manual controller: The fan speed is manually adjusted via a physical knob or slider controller mounted on the chassis panel. This method cannot achieve intelligent and automatic adjustment based on system load and temperature, has low control precision, and requires frequent manual intervention from the user, resulting in poor convenience.

[0006] Hub control: A fan hub is used to expand the motherboard's interfaces, but it is still limited by the broadcast control of the motherboard's single control signal, making it difficult to achieve independent and fine-grained management of each fan connected to the hub.

[0007] In summary, existing fan control technologies have shortcomings in terms of scalability, control precision, intelligence, and ease of installation, and a new technical solution is urgently needed to address these issues. Summary of the Invention

[0008] The purpose of this invention is to provide a wireless fan control system, which aims to solve the problems of complex wiring, poor scalability and insufficient intelligence in existing computer cooling fan control schemes.

[0009] This utility model is achieved through the following technical solution:

[0010] A wireless fan control system, characterized in that it comprises:

[0011] A host control module, the host control module including a USB interface for connecting to a computer host, a main processor, and a first wireless communication unit electrically connected to the main processor;

[0012] A fan management module, the fan management module including a second wireless communication unit and at least one fan interface electrically connected to the second wireless communication unit;

[0013] Several fans are used for electrical connection to the fan interface via wires;

[0014] The host control module establishes a wireless connection with the second wireless communication unit of the fan management module through the first wireless communication unit.

[0015] The main processor of the host control module is a system-on-a-chip that includes a quad-core Cortex-A53 central processing unit.

[0016] The host control module further includes a memory and a flash memory that are electrically connected to the system-on-a-chip.

[0017] The first wireless communication unit is a Bluetooth module.

[0018] The fan interface of the fan management module is a set of physical connectors including a power interface, a pulse width modulation speed control interface, and a frequency generation feedback interface.

[0019] The host control module further includes a power management integrated circuit, which is electrically connected to the USB interface and the main processor, and is used to convert the electrical energy input from the USB interface to power the main processor.

[0020] The host control module also includes a MIPI display serial interface electrically connected to the main processor.

[0021] The host control module further includes a MIPI camera serial interface electrically connected to the main processor.

[0022] The host control module also includes a universal asynchronous transceiver debug port.

[0023] The beneficial effects of this utility model are:

[0024] This utility model discloses a wireless fan control system. By splitting the fan controller into two parts and connecting them wirelessly, the user can install the fan management module in a densely populated fan area and connect the short fan cables nearby. The host control module is connected to the motherboard through a simple USB cable. The control signals between the two are transmitted wirelessly, completely eliminating the nightmare of multiple long fan cables running across the main compartment of the chassis and achieving unprecedented cleanliness inside the chassis.

[0025] In addition, the host control module is equipped with a high-performance system-on-a-chip, along with memory and flash memory, making it a miniature computer itself. It can independently run complex control algorithms, store and execute user fan speed / lighting configuration files locally without continuously occupying the CPU resources of the host computer, providing a more professional and stable control core. Attached Figure Description

[0026] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0027] Figure 1 This is a module connection diagram of this utility model.

[0028] Figure Labels

[0029] Host control module -- 100, USB interface -- 101, main processor -- 102, first wireless communication unit -- 103,

[0030] Fan management module--200, Second wireless communication unit--201,

[0031] Fan--300, Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] like Figure 1 As shown, this embodiment discloses a wireless fan 300 control system, which includes:

[0036] The host control module 100 includes a USB interface 101 for connecting to a computer host, a main processor 102, and a first wireless communication unit 103 electrically connected to the main processor 102.

[0037] The fan management module 200 includes a second wireless communication unit 201 and at least one fan 300 interface electrically connected to the second wireless communication unit 201.

[0038] Several fans 300 are used for electrical connection to the fan 300 interface via wires;

[0039] The host control module 100 establishes a wireless connection with the second wireless communication unit 201 of the fan management module 200 through the first wireless communication unit 103.

[0040] The host control module 100 is the control center of the entire system. It is a small, independent device that connects to the USB header of the computer motherboard or an external USB port via its USB interface 101 to obtain power and instructions from the upper-level control software.

[0041] At its core is a powerful main processor 102, such as a system-on-a-chip (SoC) integrating a quad-core Cortex-A53 CPU, and equipped with independent RAM and flash memory. This configuration enables it to run an embedded operating system and perform complex local computations and data storage. To provide a stable power supply to this powerful core, a power management integrated circuit (PMIC) is also integrated within the module to efficiently convert the 5V voltage input from the USB interface 101 into various low voltages required by the processor.

[0042] The module sends control commands to the outside via a first wireless communication unit 103 (preferably a Bluetooth Low Energy module).

[0043] In addition, the host control module 100 also provides powerful expansion interfaces, including a MIPI Display Serial Interface (DSI) for directly driving a display screen, a MIPI Camera Serial Interface (CSI) for connecting an image sensor, and a UART port for development and debugging.

[0044] Specifically, the fan management module 200 is the system's execution terminal or satellite module. In this embodiment, it is preferably a simple circuit board, the core of which is a second wireless communication unit 201 (also a Bluetooth module) and a microcontroller (MCU, not shown). Its main task is to receive wireless commands from the host control module 1001 and convert them into electrical signals to drive the fan 300 to rotate and change the lighting effects.

[0045] This module has one or more fan 300 interfaces. Each interface is preferably a standard 4-pin physical connector, including four pins: power (VCC), ground (GND), pulse width modulation speed control (PWM), and speed feedback (Tach / FG), which can accurately adjust the speed of the fan 300 and monitor it in real time.

[0046] Workflow example:

[0047] Installation: The user installs the fan management module 200 inside the chassis near the fans 300 (e.g., in the cable management bay), and connects several fans 300 inside the chassis to the fan 300 connectors of the module using their provided short cables. Then, the host control module 100 is installed in any convenient location inside the chassis and connected to the motherboard via a USB cable.

[0048] Pairing: When the system is powered on for the first time, the first wireless communication unit 103 of the host control module 100 and the second wireless communication unit 201 of the fan management module 200 automatically search and pair via Bluetooth protocol to establish a stable wireless connection.

[0049] Control: The user runs the accompanying control software in the computer operating system to set the fan speed curve of 300 rpm (for example, when the CPU temperature exceeds 70°C, the fan speed of 300 rpm is increased to 80%). This command is sent to the host control module 100 via USB.

[0050] Execution: The main processor 102 of the host control module 100 receives the instruction and wirelessly sends the specific PWM duty cycle value to the fan management module 200 through its Bluetooth module.

[0051] Drive and Feedback: After receiving the wireless command, the microcontroller on the fan management module 200 immediately generates a corresponding PWM waveform on the corresponding fan 300 interface, driving the fan 300 to adjust to the specified speed. At the same time, the feedback signal generated by the fan 300 speed sensor is also read by the fan management module 200 and can be wirelessly transmitted back to the host control module 100 for the software to display the real-time speed.

[0052] In summary, the wireless fan 300 control system of this embodiment has the following beneficial effects:

[0053] Simplified Cable Management: The biggest innovation of this invention lies in splitting the Fan 300 controller into two and connecting them wirelessly. Users can install the Fan Management Module 200 near areas with a high density of Fan 300s (such as near the radiator or the chassis back panel), allowing short Fan 300 cables to be connected nearby. The host control module 100 is connected to the motherboard via a simple USB cable. Control signals between the two are transmitted wirelessly, completely eliminating the nightmare of multiple long Fan 300 cables running across the main chassis compartment, achieving unprecedented internal chassis tidiness.

[0054] Powerful local processing capabilities: The host control module 100 is equipped with a high-performance system-on-a-chip (SoC), along with memory and flash memory, making it a miniature computer itself. It can independently run complex control algorithms, store and execute user fan speed / lighting configuration files locally, without continuously consuming the host computer's CPU resources, providing a more professional and stable control core.

[0055] High functional scalability: By integrating a MIPI display interface and a camera interface on the host control module 100, this invention elevates a fan 300 controller to the level of an "in-chassis intelligent terminal." It can not only control the fan 300, but also connect an external independent display for real-time system monitoring, or connect a camera to achieve cutting-edge functions such as ambient lighting synchronized with the screen content, greatly enriching the interactivity and playability of the PC.

[0056] Wide compatibility: The Fan Management Module 200 adopts a standard 4-Pin Fan 300 interface (integrating power supply, PWM speed control and speed feedback), which can be perfectly compatible with most high-performance PWM Fan 300 on the market, allowing users to freely match them.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A wireless fan control system, characterized in that, include: A host control module, the host control module including a USB interface for connecting to a computer host, a main processor, and a first wireless communication unit electrically connected to the main processor; A fan management module, the fan management module including a second wireless communication unit and at least one fan interface electrically connected to the second wireless communication unit; Several fans are used for electrical connection to the fan interface via wires; The host control module establishes a wireless connection with the second wireless communication unit of the fan management module through the first wireless communication unit.

2. The wireless fan control system according to claim 1, characterized in that, The main processor of the host control module is a system-on-a-chip that includes a quad-core Cortex-A53 central processing unit.

3. The wireless fan control system according to claim 2, characterized in that, The host control module also includes a memory and flash memory electrically connected to the system-on-a-chip.

4. The wireless fan control system according to claim 1, characterized in that, The first wireless communication unit is a Bluetooth module.

5. The wireless fan control system according to claim 1, characterized in that, The fan interface of the fan management module is a set of physical connectors including a power interface, a pulse width modulation speed control interface, and a frequency generation feedback interface.

6. The wireless fan control system according to claim 1, characterized in that, The host control module also includes a power management integrated circuit, which is electrically connected to the USB interface and the main processor, and is used to convert the electrical energy input from the USB interface to power the main processor.

7. The wireless fan control system according to claim 1, characterized in that, The host control module also includes a MIPI display serial interface electrically connected to the main processor.

8. The wireless fan control system according to claim 1, characterized in that, The host control module also includes a MIPI camera serial interface electrically connected to the main processor.

9. The wireless fan control system according to claim 1, characterized in that, The host control module also includes a universal asynchronous transceiver debug port.

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