TEMPTRAK: A WEARABLE INTELLIGENT FAN SPEED REGULATION SYSTEM

Abstract

ABSTRACT The present invention relates to a smart fan speed regulator system, TEMPTRAK, designed to optimize indoor environmental conditions by dynamically adjusting fan speed based on human body and ambient temperature. The system consists of a wearable transmitter module with a compact smart watch-like design integrating an Arduino Nano microcontroller (2), an SHT31 temperature sensor (1), a touch sensor (6), an NRF module (3) for wireless communication, and an OLED display (4). The receiver module includes an Arduino Uno microcontroller (9), a 4-channel relay (11), an AC fan regulator (12), a transformer with a power regulation circuit (15), and an additional NRF module (8) for communication. The system enhances user comfort, improves energy efficiency, and provides real-time data visualization for residential, commercial, and industrial applications. Figure 5.

Specification

Description:TEMPTRAK: A WEARABLE INTELLIGENT FAN SPEED REGULATION SYSTEM

FIELD OF THE INVENTION
The present invention relates to responsive and intelligent environmental control systems, specifically in the area of smart fan speed regulation based on human body temperature. More specifically, the present invention relates to an intelligent system that improves indoor climate control through the dynamic adjustment of fan speeds in response to real-time temperature readings, thereby promoting a comfortable and energy-efficient indoor environment.

BACKGROUND OF THE INVENTION
The advancement of technology has led to the development of various systems aimed at automating the control of environmental conditions. Numerous patent literatures, such as CN205533372 U, CN105952678 A, CN103362847 A, and CN201902350 U, describe systems that control fan temperature automatically. These inventions typically focus on either temperature monitoring or fan speed adjustment, but they often lack an integrated approach that takes into account the human body's temperature as a critical parameter for regulating indoor climate.
In addition to patented technologies, various non-patent literature sources discuss intelligent fan speed regulators. Notable works include those by Nur Afiqah Junizan et al., published in the International Journal of Engineering Creativity and Innovation (2019, 1(2), 8-14), and Suraj Kaushik et al., featured in the International Journal of Advance Research, Ideas and Innovations in Technology (2018, Volume 4, Issue 2). Other significant contributions come from Ashima Jain et al., presented in the Proceedings of the Advancement in Electronics & Communication Engineering (2022), K Sai Kumar et al., in the Journal of Engineering Sciences (Vol 14 Issue 05, 2023), and M. A. A. Mashud et al., in the International Journal of Scientific & Engineering Research (Volume 6, Issue 8, August 2015). Further studies include those by Anket Bagal et al., in the Journal of Science &Technology (vol. 6 no. Special issue 1, 2021), and Lawani Aigbiniode Sunday et al., in the American Journal of Engineering Research (AJER) (Volume-7, Issue-7, pp-164-171).
Despite these advancements, none of the prior arts disclose a comprehensive solution that combines temperature monitoring with the control of an AC fan based on the detected human body temperature. The intelligent fan speed regulator -"TEMPTRAK", as presented in this invention, addresses these shortcomings. It includes both a transmitter and receiver module, with an Arduino microcontroller at its core. The system incorporates an SHT temperature and humidity sensor, an NRF module for wireless communication, and an OLED display for real-time information visualization. TEMPTRAK dynamically adjusts the fan speed in response to real-time measurements of human body temperature, thereby optimizing indoor climate control and improving overall comfort and energy efficiency.

SUMMARY OF THE INVENTION
The present invention relates to an intelligent fan speed regulation system known as "TEMPTRAK," that dynamically adjust fan speed in response to human body temperature, thereby optimizing indoor climate control. The system comprises a transmitter (TX) and a receiver (RX) unit. The TX unit features an NRF module for wireless communication, a display for temperature visualization, a touch sensor for user interaction, an SHT31-D temperature sensor for measuring ambient temperature, and an Arduino Nano microcontroller for overall system control. In contrast, the RX unit is equipped with an Arduino Uno microcontroller, a transformer with a power regulation circuit to ensure a steady power supply, a user interface display, an additional NRF module for communication with the TX unit, an AC fan regulator, an AC fan for air circulation, a 4-channel relay to control fan speed, and a switch button to toggle between auto and manual modes.
In one embodiment, the present invention relates to an intelligent fan speed regulation system, wherein the transmitter module in this system is designed as a wearable smart device, similar to a smart watch. It integrates all necessary components, including an Arduino Nano microcontroller, SHT31 temperature sensor, touch sensor, NRF module, and OLED display, into a compact smart watch form. The touch sensor makes contact with the user's skin to detect their presence in the room, without causing any harm or discomfort.
In another embodiment, the present invention relates to an intelligent fan speed regulator, wherein, the RX unit wirelessly receives temperature data from the TX unit. It processes this temperature data and dynamically adjusts the fan speed through the relay and AC fan regulator. This comprehensive system enhances user experience and supports sustainability initiatives by providing customized comfort and energy-efficient climate control in indoor environments.

BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 illustrates the block diagram of the transmitter (TX).
Figure 2 illustrates the block diagram of the receiver (RX).
Figure 3 shows the prototype of the transmitter (TX) module of the system.
Figure 4 shows the prototype of the receiver (RX) module of the system.
Figure 5 shows the prototype of the complete system "TEMPTRAK".
Referring to the drawings, the embodiments of the present invention are further described. The figures are not necessarily drawn to scale, and in some instances the drawings have been exaggerated or simplified for illustrative purposes only. One of ordinary skill in the art may appreciate the many possible applications and variations of the present invention based on the following examples of possible embodiments of the present invention.

DETAILED DESCRIPTION OF THE INVENTION
The following description outlines various embodiments of the invention for illustrative purposes, without limiting its scope. Skilled persons in the field will appreciate that other configurations may also fall within the scope of this disclosure. Terms used herein carry their standard meanings in the relevant field, and synonyms may be used interchangeably. Examples provided are illustrative and do not limit the scope of the invention.
The present invention relates to an intelligent fan speed regulation system known as "TEMPTRAK," that dynamically adjust fan speed in response to human body temperature, thereby optimizing indoor climate control. This system comprises a transmitter (TX) and a receiver (RX) unit, both equipped with microcontrollers and wireless communication modules to facilitate data transfer and control.
The TX unit is designed as a wearable smart device, similar to a smart watch featuring a temperature sensor (SHT31-D) to measure ambient temperature, an NRF module for wireless communication, an OLED display for real-time temperature visualization, and an Arduino Nano microcontroller to control the unit's functions. A touch sensor makes contact with the user's skin is included for user interaction, allowing manual adjustments or mode selection between automatic and manual control along with to detect their presence in the room.
The RX unit, responsible for controlling the fan, includes an Arduino Uno microcontroller, a transformer with a power regulation circuit for steady power supply, a 4-channel relay for regulating fan speed, an AC fan regulator, and an additional NRF module for receiving temperature data wirelessly from the TX unit. The system also includes a user interface display for monitoring fan settings and temperature data, along with a switch for toggling between automatic and manual fan speed control modes.

Components & Functionality
Transmitter Unit (TX)
The TX unit is responsible for monitoring ambient temperature and transmitting this information wirelessly to the RX unit. It consists of the following components:
Arduino Nano Microcontroller (2): This compact and efficient microcontroller serves as the central processing unit (CPU) of the TX unit. It processes data from the temperature sensor, interprets user inputs from the touch sensor, and manages the wireless communication with the RX unit.
NRF Module (3):The NRF Module is an essential component for wireless communication between the TX and RX units. It operates in the 2.4 GHz frequency band and facilitates the transmission of temperature data, ensuring minimal latency in data transfer. The module ensures that temperature information collected by the TX unit reaches the RX unit swiftly, allowing for prompt adjustments to fan speed. This quick response time is critical in settings where temperature control is essential to maintaining comfort or preventing damage.
SHT31-D Temperature Sensor (1): Known for its high accuracy and quick response time, this sensor continuously measures ambient temperature and humidity. The SHT31-D provides real-time data that is essential for determining the necessary adjustments to fan speed.
Display (4): The TX unit is equipped with an LCD or OLED display that visualizes current temperature readings and system status. It allows users to monitor environmental conditions at a glance.
Touch Sensor (6): This user-friendly interface enables manual adjustments to the system. Users easily change settings, such as switching between automatic and manual modes or adjusting temperature thresholds.

Receiver Unit (RX)
The RX unit receives temperature data from the TX unit and controls the fan speed based on this information. Key components include:
Arduino Uno Microcontroller (9): The RX unit's main controller, the Arduino Uno, processes incoming data from the TX unit and determines the appropriate fan speed settings. It executes the control logic necessary to adjust the fan operation based on real-time temperature inputs.
Transformer with Power Regulation Circuit (15): This component ensures that the RX unit receives a consistent and stable power supply. It converts the AC mains voltage to a suitable level for the microcontroller and other components, preventing voltage fluctuations that affect system performance.
User Interface Display (10): This display presents critical information to users, such as the current temperature received from the TX unit, selected fan speed, and mode status (auto or manual). It enhances user interaction and facilitates easy monitoring of system performance.
Additional NRF Module (8): Like the module in the TX unit, this NRF module allows for bidirectional communication between the TX and RX units, ensuring seamless data transfer and control commands.
Mode-Selection Switch Button (14): This button enables users to toggle between different operational modes, such as auto mode for temperature-responsive fan speed adjustment and manual mode for user-defined settings.
4-Channel Relay (11): This relay controls the fan's operational parameters by switching between different speed settings. It allows for precise adjustments based on the microcontroller's commands.
AC Fan Regulator (12): This component modulates the power supplied to the AC fan, allowing for smooth adjustments in speed according to the relay's control signals.
AC Fan (13): The fan circulates air within the environment, providing cooling based on the dynamically adjusted speed settings.

Operation of the System
Figure 1: Illustrates the connection and arrangement of components within the TX unit, emphasizing the role of the Arduino Nano as the main controller. The integration of the SHT31-D temperature sensor is highlighted to showcase its function in precise temperature monitoring. The touch sensor's position is shown, demonstrating how it allows for user input for manual adjustments or mode selection. The NRF module's inclusion emphasizes its critical role in enabling wireless communication between the TX and RX units.
Figure 2: Displays the arrangement of components within the RX unit, highlighting the Arduino Uno's position as the main controller managing RX unit operations. The transformer with the power regulator circuit illustrates its role in providing steady power. The user interface display's location is shown, highlighting its function in presenting system status and temperature data. The NRF module's connection demonstrates how it facilitates wireless communication, and the switch button's placement allows users to switch between auto and manual modes for fan speed control.
The described system demonstrates an innovative approach to real-time environmental monitoring and control by integrating advanced sensing, processing, and wireless communication technologies. This detailed explanation provides insights into the functionality and components of the transmitter (TX) and receiver (RX) modules, emphasizing their roles in ensuring seamless operation.
Transmitter Module:
Figure 3 highlights the prototype of the transmitter module, which functions as the core of the system for data collection, processing, and transmission. Central to its design is the Arduino Nano microcontroller, which controls the activities of various connected components. This microcontroller interacts with the SHT31 temperature sensor, a high-precision device that measures both ambient and human body temperatures. The real-time temperature data gathered is processed and displayed on an OLED screen, providing immediate feedback to the user.
Interactive Touch Sensing:
A feature of the transmitter module is its touch sensor, integrated with the SHT31 sensor. This touch sensor enhances the user interface by allowing interactive functionalities. For instance, every detected touch increments a counter displayed on the OLED, offering a practical feature for monitoring user interactions. When no touch is detected, the system resets the counter to zero, reflecting the idle state on the display. This capability highlights the transmitter's dual role in environmental sensing and user feedback.
Wireless Data Transmission:
For remote monitoring and communication, the transmitter incorporates an NRF module, which enables real-time wireless data transfer to the receiver module. The NRF module supports long-range and reliable communication, ensuring that the data integrity is preserved during transmission. This design choice establishes the transmitter as a compact, wearable smart device, akin to a smart watch. This wearable design not only optimizes usability but also ensures the device is non-invasive and comfortable for users.
Receiver Module:
Figure 4 illustrates the receiver module, which acts as the system's decision-making hub. Built around an Arduino Uno microcontroller, the receiver processes incoming data transmitted by the NRF module of the transmitter. It integrates several components, including a 4-channel relay module, OLED display, two buck converters, a transformer, a bridge rectifier, and a voltage regulator, creating a robust infrastructure for real-time environmental control.
Real-Time Monitoring and Feedback:
The RX unit continuously monitors the SHT31 sensor data transmitted by the TX module. This data, including temperature and humidity values, is displayed on the OLED screen of the receiver module, providing users with up-to-date environmental conditions. The receiver also adapts dynamically to any changes in the transmitted data, ensuring that the displayed information is always accurate and current.
Intelligent Fan Regulation:
A key feature of the receiver module is its ability to regulate the speed of an AC fan based on environmental conditions. The integration of the 4-channel relay module enables precise control of the fan regulator. For example, if the temperature or humidity exceeds a predefined threshold, the receiver increases the fan speed to enhance cooling and ventilation. Conversely, when the conditions are within the optimal range, the fan speed is reduced to conserve energy, balancing efficiency and comfort.
Energy-Efficient Design:
The intelligent regulation of the fan showcases the system's energy-efficient design. By dynamically adjusting the fan speed based on real-time conditions, the system reduces unnecessary energy consumption, making it both eco-friendly and cost-effective. This feature underlines the practicality of the system in scenarios where energy conservation is paramount.
Manual Override and User Control:
To enhance usability, the RX unit includes a manual override option, accessible through the touch sensor. Users switch between automatic and manual modes, providing flexibility in climate control. This feature empowers users to tailor the system's operation to their preferences, ensuring a seamless blend of automation and manual intervention.
Integration of OLED Displays:
Both the transmitter and receiver modules utilize OLED displays to provide real-time feedback. While the TX unit's display focuses on interaction and monitoring, the RX unit's interface facilitates user control and environmental monitoring. This consistent feedback mechanism ensures users are always informed about system performance and environmental conditions.
Thus the system integrates advanced technologies into a cohesive design, featuring precise sensing, efficient processing, real-time data transmission, and adaptive control. With its compact, wearable transmitter and intelligent receiver, it offers a comprehensive solution for environmental monitoring and climate regulation. By addressing user comfort, energy efficiency, and operational adaptability, the system exemplifies innovation in environmental management systems.

Dynamic Regulation and User Experience
The fundamental operating principle of TEMPTRAK revolves around real-time temperature detection and analysis to adjust fan speed for optimal comfort and energy savings. The SHT31-D temperature sensor continuously monitors ambient temperature and transmits this data wirelessly via the NRF module to the RX unit. Upon receiving the temperature data, the RX unit processes the information to determine the appropriate fan speed based on preset temperature thresholds.
Temperature Monitoring: The SHT31-D sensor continuously collects temperature data, which is crucial for assessing the thermal comfort of occupants in the space.
Data Transmission: The TX unit transmits the collected temperature data wirelessly to the RX unit using the NRF module, ensuring immediate updates on environmental conditions.
Fan Speed Adjustment: The RX unit receives the temperature data and analyzes it against predefined thresholds. If the body temperature exceeds a specific threshold, the microcontroller activates the relay to increase fan speed, providing immediate relief to occupants. Conversely, if the temperature is within comfortable limits, the system reduce the fan speed to save energy.
User Interaction: Users interact with the system through the touch sensor, allowing for adjustments to settings, including temperature thresholds and operational modes. The user interface display provides feedback on the current system state, enhancing user engagement and satisfaction.
Energy Efficiency: By adjusting fan speed in real-time based on occupancy and temperature, the TEMPTRAK system significantly reduces energy consumption compared to traditional fixed-speed fans. This innovative approach not only improves user comfort but also contributes to sustainability efforts by minimizing unnecessary energy usage.

Industrial Application
The TEMPTRAK intelligent fan speed regulator can be applied in various industries where temperature control and energy efficiency are crucial. In manufacturing facilities and warehouses, it can dynamically adjust fan speeds based on workers' body temperatures, optimizing air circulation, reducing energy consumption, and enhancing comfort in high-activity zones. In data centers, TEMPTRAK can improve cooling by adjusting fan speeds according to ambient temperatures near servers, reducing the risk of overheating and enhancing cooling efficiency. In the textile industry, where heat and dust from machinery can impact productivity, TEMPTRAK can maintain a comfortable working environment by regulating fan speeds to match real-time temperature fluctuations. Overall, this system enhances energy efficiency and comfort across various industrial environments.

It may be appreciated by those skilled in the art that the drawings, examples and detailed description herein are to be regarded in an illustrative rather than a restrictive manner. , Claims:We Claim:

1. An intelligent fan speed regulation system, comprising:
a. a transmitter module designed as a wearable smart device incorporating an Arduino Nano microcontroller (2)for processing data, an SHT31 temperature sensor (1) for ambient and body temperature monitoring, a touch sensor (6) for user interaction and presence detection, an NRF module (3) for wireless communication, and a display (4) for real-time data visualization;
b. a receiver module comprising an Arduino Uno microcontroller (9) for processing transmitted data, an AC fan regulator (12)for dynamic fan speed adjustment, a 4-channel relay (11) for speed control, an additional NRF module (8) for wireless communication with the transmitter module, a transformer with a power regulation circuit (15)for stable power supply, and a user interface display (10)for monitoring system operations;
characterized in that, the transmitter module continuously transmits real-time temperature data, and the receiver module dynamically adjusts the fan speed based on the received data.
2. The system as claimed in claim 1, wherein the receiver module dynamically adjusts the fan speed in response to real-time measurements of human body temperature.
3. The system as claimed in claim 1, wherein the receiver module dynamically adjusts the fan speed through a 4-channel relay and AC fan regulator.
4. The system as claimed in claim 1, wherein the receiver module includes a manual override function that allows users to switch between automatic and manual fan speed adjustment modes using a control button.
5. The system as claimed in claim 1, wherein the user interface display of the receiver module provides real-time feedback on temperature, fan speed settings, and operational mode.
6. The system as claimed in claim 1, wherein the NRF modules facilitate bi-directional communication between the transmitter and receiver modules, allowing real-time updates and status monitoring.
7. The system as claimed in claim 1, wherein the SHT31 temperature sensor of the transmitter module also monitors humidity levels.
8. The system as claimed in claim 1, wherein the touch sensor makes contact with the user's skin to detect their presence in the room.
9. The system as claimed in claim 1, wherein the transmitter module includes a counter mechanism to record the number of user interactions detected by the touch sensor, and the counter status is displayed on the display module.
10. The system as claimed in claim 1, wherein the transmitter module is designed as a smart watch

Documents