Fitness equipment electrical control system based on modular design

Abstract

The invention relates to the field of electrical control systems, in particular to a fitness equipment electrical control system based on modular design. The system includes a host header, at least one multimedia data interface, at least one control data interface, and at least one user interface. And the host header is used for controlling multimedia data, motion control data and user interface data of the fitness equipment through the interfaces. The multimedia data interface is connected with the first conversion module, converts multimedia data into IP data and transmits the IP data to the multimedia data interface; the control data interface is connected with a plurality of functional modules through a second conversion module, and converts and transmits motion control data; the user interface is connected with various USB interfaces through the USB HUB and used for being connected with external equipment. The system is based on modular design, functional modules can be flexibly increased and decreased, separated transmission of multi-type data is achieved, main control hardware design is simplified, and expansibility and compatibility of the system are improved.

Description

Technical Field

[0001] The invention relates to the field of electrical control systems, and in particular to an electrical control system for fitness equipment based on modular design. Background Art

[0002] As people's awareness of health continues to improve, the use of fitness equipment is becoming more and more widespread, and fitness equipment suitable for different scenarios is widely used, such as homes, gyms, hotels, and offices. Different application scenarios have different functional requirements for fitness equipment. For example, home fitness equipment usually needs to be integrated with external speakers, while in the gym, only headphone jacks are required. In addition, different types of fitness equipment (such as treadmills, spinning bikes, rowing machines, climbing machines, etc.) have large differences in equipment control and information feedback. Treadmills usually require motor and slope control and heart rate detection, while spinning bikes require detection and control of resistance, speed, and heart rate.

[0003] In the prior art, the control system of fitness equipment implements different functions through a variety of interfaces and communication methods. For example, heart rate detection can be performed through wired handheld feedback or Bluetooth, ANT+ wireless heart rate devices, etc.

[0004] However, the existing system has obvious shortcomings in the following aspects:

[0005] 1. Complex master control design: The current master control system of fitness equipment integrates multiple communication interfaces and has complex hardware design. It not only needs to process multimedia information, but also needs to process the control signals of the equipment. This greatly increases the design difficulty and cost of the master control system.

[0006] 2. Poor scalability and compatibility: Since the control and multimedia processing units are integrated on the same motherboard, the entire control system often needs to be redesigned when updating or upgrading the multimedia functions. This not only leads to a long development cycle, but also increases costs. The poor compatibility of interfaces between different fitness equipment leads to insufficient scalability of the system.

[0007] 3. Complex wiring and serious interference problems: Various interfaces and functional modules in fitness equipment are connected by long cables, which not only increases the cable cost and the assembly complexity of the equipment, but is also easily affected by the electromagnetic environment of the equipment. For example, when multiple motors are running at the same time, it may cause control signal transmission errors and affect the stability of the system.

[0008] The various interfaces and functional modules in fitness equipment are connected by long cables, which not only increases the cable cost and assembly complexity of the equipment, but is also easily affected by the electromagnetic environment of the equipment. For example, when multiple motors are running at the same time, control signal transmission errors may occur, affecting the stability of the system. Summary of the invention

[0009] The purpose of the present invention is to overcome the problems existing in the prior art, such as complex main control design, poor scalability and compatibility, complex wiring and interference, and propose an electrical control system for fitness equipment based on modular design. The present invention solves the above problems existing in the prior art by introducing a reliable bus system, modular design and response registration definition of functional modules, and also significantly improves the stability and flexibility of the system.

[0010] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0011] An electrical control system for fitness equipment based on modular design, comprising:

[0012] A host header, including at least one multimedia data interface, at least one control data interface and at least one user interface;

[0013] The multimedia data interface is connected to a first conversion module; the first conversion module converts the multimedia data into IP data and transmits it to the multimedia data interface;

[0014] The control data interface is connected to a plurality of functional modules via a second conversion module; the second conversion module is used to convert and transmit motion control data;

[0015] The user interface is connected to various USB interfaces via a USB HUB and is used to connect external devices.

[0016] Preferably, the first conversion module converts the multimedia data into IP data, specifically including using an HDMI interface to Ethernet IP module to convert the HDMI data into IP data, and using a Type-C DP interface to Ethernet IP module to convert the Type-C interface DP data into IP data. In this way, it is ensured that the system's multimedia data can be uniformly transmitted in the form of IP data, reducing the complexity of data format conversion during the transmission process, while improving the transmission efficiency of video data, ensuring the stable transmission of video and audio data.

[0017] Preferably, it also includes a multi-port switch, which connects the multimedia data interface and the first conversion module; the multi-port switch includes multiple Ethernet RJ45 interfaces, receives IP data from the first conversion module, and transmits the IP data to the multimedia data interface; the multimedia data interface adopts an Ethernet RJ45 interface. Through the integration of the multi-port switch, the system can expand data between multiple external interfaces and flexibly meet the multimedia data transmission requirements in different scenarios. The switch provides multiple Ethernet RJ45 interfaces to ensure that each module can receive and transmit IP data at the same time, effectively improving the bandwidth utilization of data transmission and the scalability of the system.

[0018] Preferably, the motion control data interface adopts a CAN interface, which is connected to multiple functional modules through a second conversion module; specifically, the CAN interface transmits the motion control data to multiple functional modules through a CAN bus using a differential signal transmission method. The use of the CAN bus not only simplifies wiring, but also enhances the anti-interference ability of the system, and is particularly suitable for working in a complex electromagnetic environment. In addition, the differential signal transmission method further ensures the stability of the motion control data, providing the system with high reliability and real-time response capabilities.

[0019] Preferably, the user interface adopts a USB Type-C interface; the host header is connected to a USB HUB through the USB Type-C interface, and the USB HUB includes multiple Type-A USB interfaces, supporting USB device connection and charging function expansion. The application of USB HUB improves the compatibility of the system, allowing users to connect a variety of external USB devices, while supporting charging functions, and enhancing the user experience. The application of USB HUB makes the user interface more flexible and functionally extensible, meeting the application requirements of different scenarios.

[0020] Preferably, the motion control data adopts a priority management mechanism, wherein the CAN bus data is transmitted and processed in priority to the Ethernet data. This priority management mechanism ensures that key motion control signals can be transmitted and processed in priority in the system, meets the real-time requirements, avoids the impact of delays on motion control, and effectively improves the response speed and stability of the system.

[0021] Preferably, in the CAN bus, the transmission priority of the motion control data is set by the length of the CAN ID, and the shorter the CAN ID, the higher the priority. This priority allocation method can ensure the priority transmission of key signals when multiple signals are concurrent, thereby ensuring the safe response of the equipment at critical moments and improving the safety and reliability of the system.

[0022] Preferably, the Ethernet data is used to prioritize multimedia data through the priority field of IP data. The priority division of multimedia data in Ethernet data is defined and managed through the priority field of IP data packets. In this way, priority transmission of key signals can be guaranteed, system resource allocation is optimized, and users can get a smoother experience when watching videos and audios, while avoiding interference of important data by low-priority network service data.

[0023] Preferably, the host meter head performs data management through a CAN interface conversion module; the CAN interface conversion module includes a single-chip microcomputer control chip, and the single-chip microcomputer control chip is connected to the following interfaces and various functional modules: RS232 interface is used to connect to the remote communication module; RS485 interface is used to connect to the external sensor module; I2C interface and GPIO interface are used to connect to the low-power control module and the key module; PWM interface is used to connect to the motor control, brake control, speed feedback, slope adjustment and resistance adjustment modules; ADC interface is used for slope detection. The definition of specific interface and module connection methods (such as RS232, RS485, I2C, GPIO, PWM and ADC interfaces) enables the system to flexibly schedule various modules as needed, thereby improving the system's scalability and modular management capabilities. Each functional module is centrally managed under one control chip, which simplifies the control structure and enhances the stability and operational efficiency of the system.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention proposes an electrical control system for fitness equipment based on modular design, which includes a host header and three independent data interfaces (multimedia data interface, control data interface, and user interface), realizes efficient transmission of multiple data and flexible expansion of equipment, reduces the processing burden of the main control header, and improves the efficiency and stability of data transmission. Through modular design, the system can flexibly configure multimedia data interfaces, control data interfaces, and user interfaces to support different types of data transmission requirements. The modular structure allows the system to increase or decrease the functional modules of each interface according to the needs of different fitness equipment, so that the system can adapt to the application scenarios of various equipment from home to commercial use, and improves the compatibility and adaptability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an overall block diagram of the electrical system of the fitness equipment according to Embodiment 2 of the present invention;

[0027] Figure 2 This is a block diagram of Ethernet transmission of multimedia data according to Embodiment 2 of the present invention;

[0028] Figure 3 This is a flow chart of HDMI / DP interface to Ethernet IP data transmission according to Embodiment 2 of the present invention;

[0029] Figure 4 This is a block diagram of the connection between the CAN bus and the functional modules of Embodiment 2 of the present invention;

[0030] Figure 5 This is an internal structure diagram of a CAN interface conversion module according to Embodiment 2 of the present invention;

[0031] Figure 6This is a block diagram of a USB HUB according to Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0033] Example 1

[0034] The electrical control system of a fitness equipment based on modular design in this embodiment realizes the management and control of multimedia data, motion control data and user interface data through the host header. Specifically, the system includes multiple interfaces for processing and transmitting different types of data, and realizes flexible expansion and management of fitness equipment through modular design.

[0035] 1. Host header design

[0036] The host header is the core control unit of the system, responsible for receiving and processing multimedia data, motion control data and user interface data. The host header includes at least one multimedia data interface, at least one control data interface and at least one user interface;

[0037] The multimedia data interface is connected to the first conversion module; the first conversion module converts the multimedia data into IP data and transmits it to the multimedia data interface;

[0038] The control data interface is connected to a plurality of functional modules via a second conversion module; the second conversion module is used to convert and transmit motion control data;

[0039] User interface, connected to various USB interfaces through USB HUB, used to connect external devices.

[0040] 2. Transmission and processing of multimedia data

[0041] Multimedia data mainly includes TV data, HDMI audio and video data, headphone audio data and Internet data. The multimedia data interface uses an Ethernet RJ45 interface and is transmitted in the form of IP data transmission. Internet data is directly connected through the Ethernet RJ45 interface to achieve connection with the external network, supporting users to access Internet services such as video playback, online courses, etc. through fitness equipment.

[0042] The first conversion module converts multimedia data into IP data, specifically including using the HDMI interface to Ethernet IP module to convert HDMI data into IP data, and using the Type-C DP interface to Ethernet IP module to convert Type-C interface DP data into IP data. In this way, it is ensured that the system's multimedia data can be uniformly transmitted in the form of IP data, reducing the complexity of data format conversion during the transmission process, while improving the transmission efficiency of video data, ensuring the stable transmission of video and audio data.

[0043] The multimedia data transmission module of the electrical system of the fitness equipment also includes a multi-port switch, which connects the multimedia data interface and the first conversion module; the multi-port switch includes multiple Ethernet RJ45 interfaces, receives IP data from the first conversion module, and transmits the IP data to the multimedia data interface; the multimedia data interface uses an Ethernet RJ45 interface. Through the integration of the multi-port switch, the system can expand data between multiple external interfaces and flexibly meet the multimedia data transmission requirements in different scenarios. The switch provides multiple Ethernet RJ45 interfaces to ensure that each module can receive and transmit IP data at the same time, effectively improving the bandwidth utilization of data transmission and the scalability of the system.

[0044] 3. Transmission and management of motion control data

[0045] The motion control data includes motor control signals, resistance control signals, slope detection signals, and emergency stop signals. The motion control data interface uses a CAN interface, which is connected to multiple functional modules through a second conversion module; specifically, the CAN interface uses differential signal transmission via the CAN bus to transmit motion control data to multiple functional modules. The use of the CAN bus not only simplifies wiring, but also enhances the system's anti-interference ability, making it particularly suitable for working in complex electromagnetic environments. In addition, the differential signal transmission method further ensures the stability of the motion control data, providing the system with high reliability and real-time response capabilities.

[0046] The transmission of motion control data adopts a priority management mechanism, in which CAN bus data is transmitted and processed before Ethernet data. This priority management mechanism ensures that key motion control signals can be transmitted and processed first in the system, meeting real-time requirements, avoiding the impact of delays on motion control, and effectively improving the response speed and stability of the system.

[0047] In the CAN bus, the transmission priority of motion control data is set by the length of the CAN ID. The shorter the CAN ID, the higher the priority. This priority allocation method can ensure the priority transmission of key signals when multiple signals are concurrent, thereby ensuring the safe response of the equipment at critical moments and improving the safety and reliability of the system.

[0048] Ethernet data is prioritized for multimedia data through the priority field of IP data. It defines the priority of multimedia data in Ethernet data and manages it through the priority field of IP data packets. In this way, the priority transmission of key signals can be guaranteed, the allocation of system resources can be optimized, and users can get a smoother experience when watching videos and audios, while avoiding the interference of important data by low-priority network business data.

[0049] 4. User interface expansion

[0050] The user interface uses a USB Type-C interface; the host meter head is connected to the USB HUB through the USB Type-C interface. The USB HUB includes multiple Type-A USB interfaces, which support USB device connection and charging function expansion, such as USB storage devices, headphones, display devices, etc. In addition, the USB HUB also supports the device charging function, and users can charge mobile devices or other external devices through this interface. The application of USB HUB improves the compatibility of the system, allowing users to connect a variety of external USB devices, while supporting charging functions, enhancing the user experience. The application of USB HUB makes the user interface more flexible and functionally extensible to meet the application requirements of different scenarios.

[0051] 5. Data priority management and system stability

[0052] In order to ensure the real-time performance of motion control signals, the system introduces a priority management mechanism. The priority of CAN bus data is higher than that of multimedia data transmitted by Ethernet, ensuring that when the user is exercising, signals such as motor control, resistance adjustment, and emergency stop button can respond immediately to avoid equipment failure or use risks caused by delays. Through this priority management mechanism, the system achieves efficient coordination between different data streams, ensuring the stability and security of the user experience.

[0053] 6. Modular design and system expansion

[0054] The electrical system of the fitness equipment of this embodiment adopts a modular design, allowing the addition and reduction of functional modules according to different needs. The functional modules in the system are connected and communicated through the CAN bus, realizing the flexible update and expansion of independent modules.

[0055] Another advantage of modular design is that system maintenance and upgrades become more convenient. Users can replace or upgrade a functional module independently without affecting other modules, thereby improving the compatibility and scalability of the system.

[0056] 7. System application scenarios

[0057] The electrical system of this fitness equipment is suitable for a variety of fitness scenarios, including home fitness, gyms, hotel gyms, etc. In different scenarios, the system can meet the different needs of users by adding or reducing functional modules. For example, in a home fitness environment, users can choose to expand the multimedia data module to achieve audio and video playback and Internet access; in a gym, they can focus on the motion control module to ensure efficient control and safe operation of the equipment.

[0058] In summary, this embodiment introduces in detail the specific implementation of the electrical system of the fitness equipment, including the structure of the host meter, the transmission method of various data, the application of modular design and the expansion of the user interface, etc. By adopting Ethernet, CAN bus and USB Type-C interface, the system design is simplified, the scalability and compatibility of the system are improved, and the real-time performance of the motion control signal and the stability of the system are ensured through the priority management mechanism.

[0059] Example 2

[0060] This embodiment provides a specific implementation of a fitness equipment electrical control system based on modular design. The core of the system is to divide the functions of the equipment into three types of data: multimedia data, motion control data, and user interface data. The system processes different types of data through three major communication interfaces: Ethernet RJ45, CAN interface, and USB Type-C interface.

[0061] 1. System Architecture

[0062] Figure 1 The system block diagram of the entire fitness equipment electrical system is shown. The diagram provides an overall overview of the relationship and connection methods of the various parts of the system, providing an overall view. The host head of the fitness equipment communicates and controls multiple external modules through three major interfaces (Type-C, CAN interface, Ethernet RJ45 interface).

[0063] Specifically, the host meter head is used to control the fitness equipment and transmit information through three main interfaces and multiple functional modules. Specifically: The Ethernet RJ45 interface is used for the transmission of multimedia data, connecting to the external network and multi-port switches, see Figure 2 and Figure 3 ;The CAN interface is used to connect multiple functional modules and realize the transmission of control signals through CAN bus communication. For details, see Figure 4 and Figure 5 ; The Type-C port is used to connect an external USB HUB. For details on port expansion, see Figure 6 .

[0064] 2. Transmission and Processing of Multimedia Data

[0065] Multimedia data mainly includes TV data, HDMI audio and video data, headphone audio data and Internet data. These data are connected to the system via wired mode and transmitted using the mature and stable Ethernet IP data transmission mode. TV data is transmitted through the operator's set-top box via the HDMI interface. To meet the requirements of network transmission, the video data input from the HDMI interface is compressed, converted into the H.264 video format, and encapsulated with the audio data into an IP data packet for transmission.

[0066] When the system needs to connect multiple external interfaces, multi-port switch technology can be used for expansion. The number of switch interfaces can be flexibly configured and integrated into the device according to the needs. During use, users usually only select one video source for display. The bandwidth requirement of 4K video after H.264 compression is less than 34Mbps. Therefore, 100Mbps Ethernet bandwidth is sufficient to support the efficient transmission of 4K video and ensure smooth and clear video display.

[0067] To ensure the real-time performance of video data, the system uses conventional hardware encoding and decoding technology. At the same time, the IP priority of HDMI / DP input data is set higher than that of Internet data and other unused interface control signal data streams to ensure smooth transmission of HDMI / DP video. Figure 2 shown.

[0068] Figure 2 The connection structure between the fitness equipment host and the multi-port switch is shown, as well as the transmission process of multimedia data via Ethernet, including:

[0069] Fitness equipment host head: connected to the multi-port switch through the Ethernet RJ45 interface, responsible for the input and transmission of multimedia data.

[0070] Multi-port switch: equipped with multiple Ethernet RJ45 interfaces for connecting different data transmission modules.

[0071] Data transmission module: connected to the Internet router to connect the fitness equipment to the Internet; connected to two HDMI interface to Ethernet IP modules, used for the transmission of user interface (HDMI interface 1) and TV data (HDMI interface 2) respectively; connected to the Type-C DP interface to Ethernet IP module, used to transmit DP video data from the Type-C interface. The above modules convert data into IP format through HDMI and Type-C interfaces to ensure real-time data transmission and priority management.

[0072] The HDMI / DP interface to Ethernet IP module is the core module in the system, responsible for converting HDMI / DP signals into MIPI CSI data and compressing them into H.264 format video streams. The audio signal is processed in I2S format, and then the video and audio data are encapsulated into IP packets and transmitted via Ethernet. The specific process is as follows Figure 3 As shown:

[0073] 1. HDMI / Type-C interface: receives audio and video signals from HDMI or Type-C.

[0074] 2. HDMI / DP to MIPI CSI module: converts HDMI or DP signals into video data streams in MIPI CSI format, and converts audio signals into I2S signals. This module is mainly responsible for the format conversion of audio and video signals.

[0075] 3. H.264 hardware encoder: compresses MIPI CSI format video data into H.264 encoding format, and encapsulates I2S audio signals together to reduce the bandwidth required for data transmission.

[0076] 4. Ethernet RJ45 interface function: Encapsulate the encoded H.264 video and I2S audio data into IP packets and transmit them to the network through the Ethernet RJ45 interface. At this point, all data has been converted into an IP data packet format suitable for network transmission.

[0077] This process converts audio and video signals input from HDMI or Type-C into IP data streams that can be transmitted via Ethernet, ensuring efficient transmission performance and bandwidth utilization in a network environment.

[0078] 3. Processing and control of motion control data

[0079] Motion control data involves a variety of low-speed control signals, including: RS232 / UART / RS485 / I2C control interface signals, PWM signals for motor speed control, detection, brake control, and resistance control, ADC analog signals for slope detection, key signals, emergency stop key signals, slope control signals, low-power control signals, wireless charging module control signals, NFC / ANT+ / Bluetooth and other wireless control signals, and other GPIO control signals. To ensure the unity and efficient management of the system, all these motion control signals need to be converted into CAN bus interface signals and set priorities according to the importance of module functions.

[0080] Figure 4 It shows the connection structure between the main unit of the fitness equipment and each module of the CAN bus, as well as the layout of communication through the CAN interface. The specific contents are as follows:

[0081] 1. Fitness equipment host head: connected to multiple CAN interface conversion modules through a CAN interface, responsible for the overall control and management of the equipment.

[0082] 2. CAN interface conversion module:

[0083] NFC / NAT+ / Bluetooth function module: connected to the CAN interface conversion module through the UART interface, responsible for wireless communication with external devices.

[0084] UART interface controller: implements UART communication via CAN bus.

[0085] RS232 interface controller: used for RS232 device control and data transmission.

[0086] I2C interface controller: used for control and data exchange of I2C devices.

[0087] Motor speed control module: connected to the CAN interface through PWM, ADC and GPIO interfaces to manage motor speed, resistance control and detection functions.

[0088] Wireless charging module and low power control module: connected to the CAN bus through the UART and GPIO interfaces respectively, responsible for related function control.

[0089] RS485 interface controller: connected through RS485 interface, responsible for the control and data transmission of RS485 devices.

[0090] 3. Emergency stop button and matrix key module: connected to the CAN interface conversion module through the GPIO interface. The emergency stop button is directly connected to the system circuit to ensure a quick response in an emergency and directly stop the operation of the system.

[0091] Figure 4 The modular design of the system is demonstrated. Each functional module is connected to the host meter through the CAN interface to form a unified communication network. This modular layout greatly simplifies the wiring of the equipment, reduces the complexity of the cables, and improves the anti-interference ability of the system, especially in complex electromagnetic environments.

[0092] The system uses CAN bus technology, which is widely used in the automotive industry. It has high stability and strong anti-interference ability. According to functional requirements, the priority of each CAN module is: emergency stop button> motor control module> GPIO> UART and other modules. The CAN bus adopts an arbitration mechanism, combined with its 1Mbps high-speed communication capability, which can ensure efficient data exchange between multiple modules and stable operation of the system.

[0093] Figure 5The internal structure and signal processing flow of the CAN interface conversion module are shown. Specifically, it includes:

[0094] 1. CAN transceiver: responsible for receiving and sending CAN bus signals and converting CAN signals into digital signals that can be processed by the device.

[0095] 2. Single-chip microcomputer control chip: After receiving the CAN bus signal, it is responsible for data management and processing, and performs corresponding signal processing and distribution according to different interface types.

[0096] 3. RS232 / RS485 transceiver: Connect to the UART interface, convert UART signals into RS232 or RS485 signals, and transmit them to external devices. This module supports both RS232 and RS485 interface standards to meet different communication needs.

[0097] 4. Other interface signal processing:

[0098] I2C interface: I2C device connection for low-speed communication.

[0099] PWM interface: responsible for controlling the motor's speed, resistance, brake and other functions.

[0100] GPIO interface: handles key signals and other general input / output signals on the device.

[0101] UART interface: responsible for sending and receiving UART signals.

[0102] 5. Connector: The processed signal is transmitted to other devices or modules through the connector to realize data exchange and interaction of control signals.

[0103] Figure 5 It demonstrates how the entire CAN bus signal communicates with other devices through different interface modules (such as RS232, RS485, I2C, PWM, GPIO, etc.), thereby realizing the integration and modular design of the entire system and ensuring efficient operation of the system.

[0104] 4. User Interface Expansion and Management

[0105] Since the CAN bus uses differential signal transmission and supports asynchronous communication, there is no need for common ground connection between the functional modules. The functional modules of the entire system only need to be connected through a pair of cables, which greatly simplifies the cable layout of the entire equipment, effectively reduces electromagnetic compatibility issues, and improves the stability of the system.

[0106] In terms of modular layout, the design of the CAN bus allows flexible addition or reduction of functional modules according to the actual needs of the equipment, adapting to different models and usage scenarios, and improving the usability and scalability of the system.

[0107] For the power supply of the host meter and USB data transmission, the system uses a universal Type-C interface. This interface supports USB 2.0, USB 3.0 and PD (Power Delivery) power input. Through the conventional Type-C docking station technology solution, the user's USB interface and charging port can be easily expanded. The specific connection structure is as follows Figure 6 shown.

[0108] Figure 6 The connection structure between the main unit and USB HUB of fitness equipment is shown, and the connection relationship between the main unit and external devices is explained in detail. The specific contents are as follows:

[0109] 1. Fitness equipment host head: connected to the external USB HUB through a Type-C interface to handle the user's external device connection needs.

[0110] 2. USB HUB:

[0111] The module has a built-in USB HUB (hub) to distribute the Type-C signal from the host header to multiple USB ports.

[0112] Type-C interface: used to connect external devices that support the Type-C standard as a user interface.

[0113] Multiple Type-A USB ports: used to connect USB devices that support the Type-A standard. These ports allow users to connect peripherals such as USB power, USB TV data, etc.

[0114] 3. User interface layout:

[0115] The system provides multiple user interfaces, including Type-C interface and Type-A USB interface, making it easy for users to connect various devices.

[0116] One USB port is dedicated to transmitting USB TV data, ensuring high-quality audio and video data transmission via the USB port.

[0117] Through a Type-C interface, the host meter head and the USB HUB are reliably connected, and multiple USB interfaces are expanded through the USB HUB, making it convenient for users to access external devices, thereby realizing flexible expansion of the fitness equipment functions.

[0118] 5. Modular design and scalability of the system

[0119] According to the present invention, the fitness equipment host only needs to provide three interfaces: Type-C, Ethernet, and CAN bus interface. The data is processed by a host SOC, and the priority of data transmission of each interface is set: CAN bus data> Ethernet data> Type-C data.

[0120] Inside the CAN bus, the priority of the control signal is set by the length of the CAN ID. The shorter the CAN ID, the higher the priority. The specific priority is as follows: emergency stop signal > brake control signal > motor control signal > host meter signal > key signal > speed, slope, resistance and other detection signals. This priority mechanism ensures that the signal can be transmitted first in critical situations (such as emergency stop), ensuring the real-time responsiveness and safety of the equipment.

[0121] For Ethernet data, the priority is divided by the priority field of IP data, and a clear priority order is adopted to ensure the reasonable transmission of different data types. Specifically, the network control signal has the highest priority, followed by the video data stream displayed on the current interface (TV data, HDMI video data), then the voice data stream (HDMI audio data, headphone audio data), voice control data, and other network service data streams have the lowest priority. This priority strategy ensures the smooth transmission of key control signals and real-time multimedia data, and improves the stability of the system and user experience in complex communication environments.

[0122] This design simplifies the hardware structure while ensuring the stability of the system.

[0123] 1. Advantages of modular design:

[0124] The system adopts a modular design, and users can flexibly add or reduce functional modules according to different needs to adapt to the needs of various scenarios, such as home fitness, gyms, and corporate gyms.

[0125] By adding modules, such as wireless charging module, low power control module, NFC module, etc. (see Figure 4 ), users can expand the functionality of the device.

[0126] 2. Ease of use of modular layout:

[0127] The modular design of the CAN bus simplifies the connection between devices and reduces the complexity of wiring. During the installation and maintenance of equipment, the modular design reduces the use of cables, reduces equipment costs, and improves the convenience of installation.

[0128] 6. Specific implementation effects

[0129] Through the overall architecture design of this system, the following effects are achieved:

[0130] 1. Reduce the design complexity of the host header: separate and transmit different types of data to reduce the burden on the main control system.

[0131] 2. Improve the scalability and compatibility of the system: The modular design enables the system to be flexibly expanded or updated without redesigning the entire system.

[0132] 3. Improve the anti-interference ability and stability of the system: The differential signal design of the CAN bus enhances the stability of the system in complex electromagnetic environments, especially when multiple motors work at the same time.

[0133] 4. Simplify equipment layout and reduce costs: Reduce the use of cables, and the modular design simplifies the installation and maintenance of equipment while reducing overall costs.

[0134] In summary, this embodiment shows how the electrical system of fitness equipment can work together with the CAN bus, Ethernet and USB interfaces through the host meter, which not only realizes efficient control and data transmission of the equipment, but also supports flexible functional expansion. The modular design not only improves the flexibility of the system, but also provides a convenient expansion path for future functional upgrades and scene adaptation.

[0135] Example 3

[0136] The electrical system of the fitness equipment of the embodiment has a highly modular design, and can flexibly add or reduce functional modules according to the needs of different models and usage scenarios. The system communicates and controls each functional module through the host meter, and with the help of the CAN bus and Ethernet RJ45 interface, users can configure the modules according to the needs of specific models.

[0137] In a fitness bike, the control signal is relatively simple and only includes the following functional modules:

[0138] Speed ​​detection module: used to detect and adjust the speed of the fitness bike.

[0139] Resistance adjustment module: controls the feedback and adjustment functions of the resistance adjustment via the CAN bus.

[0140] Brake control module: used for the management of the brake system to ensure that users can decelerate in time when needed.

[0141] Emergency stop button module: Through high-priority emergency stop signals, ensure that the equipment can be stopped immediately in an emergency.

[0142] Key control module: used for operation control of other auxiliary functions, such as starting and mode selection.

[0143] These modules are connected and communicated with the host meter head through the CAN interface to ensure that each functional module can respond to the user's operational needs in real time.

[0144] Compared with fitness bikes, treadmills need to add the following functional modules in addition to the above modules:

[0145] Motor speed control module: used to adjust the motor speed of the treadmill to ensure that the device accelerates or decelerates smoothly according to user needs.

[0146] Slope adjustment and detection module: automatic adjustment and detection of the treadmill slope is achieved through the CAN bus, supporting slope change control in multiple training modes.

[0147] These modules are also connected to the host meter via the CAN bus. The modular design ensures that the treadmill can flexibly respond to various training needs of users.

[0148] In the scenarios of home and commercial devices, the configuration of functional modules is different. Commercial devices are usually equipped with more functional modules, while home devices will reduce the configuration of some modules in order to reduce costs and simplify the design:

[0149] Commercial devices: usually include more functional modules, such as multiple USB charging ports, HDMI input ports, TV video signal input modules, and wireless protocol support modules such as ANT+ and NFC. These modules are connected to the host meter via Ethernet and CAN bus to provide more multimedia and wireless communication functions.

[0150] Home devices: In order to reduce costs, home devices will reduce some unnecessary functional modules, such as reducing the number of USB charging ports, canceling HMI input and TV video signal input, and not supporting wireless communication protocols such as ANT+ and NFC. This makes home devices more streamlined in terms of functional configuration, but still able to meet basic fitness needs.

[0151] Whether it is a home device or a commercial device, the design of the host meter remains unchanged, and the system can add, remove and manage functional modules through the CAN bus and Ethernet RJ45 interface. Specifically, users can choose the appropriate functional modules for installation according to the device type and usage scenario. Through modular design, the electrical system of fitness equipment can be flexibly configured on different models, which not only meets the functional requirements of high-end commercial equipment, but also provides a simplified and low-cost solution for home equipment.

[0152] Through this modular design, the electrical system of the fitness equipment of the present invention can effectively adapt to a variety of models and scenarios. Users can freely add or remove modules according to their needs and quickly complete equipment configuration without changing the host header, thereby achieving higher system flexibility and adaptability.

[0153] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrical control system for fitness equipment based on modular design, characterized in that: include: A host header, including at least one multimedia data interface, at least one control data interface and at least one user interface; The multimedia data interface is connected to the first conversion module; The first conversion module converts the multimedia data into IP data and transmits the IP data to the multimedia data interface; The control data interface is connected to a plurality of functional modules via a second conversion module; the second conversion module is used to convert and transmit motion control data; The user interface is connected to various USB interfaces via a USB HUB and is used to connect external devices.

2. The electrical control system of fitness equipment based on modular design according to claim 1, characterized in that: The first conversion module converts the multimedia data into IP data, specifically including using an HDMI interface to Ethernet IP module to convert the HDMI data into IP data, and using a Type-C DP interface to Ethernet IP module to convert the Type-C interface DP data into IP data.

3. The electrical control system of fitness equipment based on modular design according to claim 2, characterized in that: It also includes a multi-port switch, which connects the multimedia data interface and the first conversion module; the multi-port switch includes multiple Ethernet RJ45 interfaces, receives IP data from the first conversion module, and transmits the IP data to the multimedia data interface; the multimedia data interface uses an Ethernet RJ45 interface.

4. The electrical control system of fitness equipment based on modular design according to any one of claims 1 to 3, characterized in that: The motion control data interface adopts a CAN interface and is connected to multiple functional modules through a second conversion module; specifically, the CAN interface transmits the motion control data to multiple functional modules through a CAN bus using differential signal transmission.

5. The electrical control system of fitness equipment based on modular design according to claim 4, characterized in that: The user interface adopts a USB Type-C interface; the host header is connected to a USBHUB through the USB Type-C interface, and the USB HUB includes multiple Type-A USB interfaces, supporting USB device connection and charging function expansion.

6. The electrical control system for fitness equipment based on modular design according to claim 4, characterized in that: The motion control data adopts a priority management mechanism, wherein the CAN bus data is transmitted and processed with priority over the Ethernet data.

7. The electrical control system for fitness equipment based on modular design according to claim 6, characterized in that: In the CAN bus, the transmission priority of motion control data is set by the length of the CAN ID. The shorter the CAN ID, the higher the priority.

8. The electrical control system for fitness equipment based on modular design according to claim 7, characterized in that: The Ethernet data is divided into multimedia data priorities through the priority field of the IP data.

9. The electrical control system for fitness equipment based on modular design according to claim 8, characterized in that: The host meter head performs data management through the CAN interface conversion module; the CAN interface conversion module includes a single-chip microcomputer control chip, and the single-chip microcomputer control chip is connected to the following interfaces and various functional modules: RS232 interface is used to connect to the remote communication module; RS485 interface is used to connect to the external sensor module; I2C interface and GPIO interface are used to connect to the low-power control module and the key module; PWM interface is used to connect to the motor control, brake control, speed feedback, slope adjustment and resistance adjustment modules; ADC interface is used for slope detection.

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