Description:FIELD OF THE INVENTION

[0001] The present invention relates to a self-cleaning air circulation device that is capable of efficiently circulating air, maintaining optimal temperature and humidity, and autonomously removing accumulated debris for consistent performance.

BACKGROUND OF THE INVENTION

[0002] Conventional air circulation devices, such as ceiling fans, air conditioners, and portable fans, primarily focus on moving air or altering temperature without addressing maintenance, hygiene, or adaptive control based on environmental conditions. Frequent cleaning and manual adjustments are often required to maintain efficiency and prevent the accumulation of dust or microbial growth, which reduce airflow, decrease energy efficiency, and pose health risks. Additionally, traditional devices are generally limited in their ability to regulate humidity and temperature simultaneously, and they lack integrated sensing means to optimize performance automatically. With growing demand for smart, energy-efficient, and self-sustaining home appliances, there is a need for an innovative solution that combines air circulation, thermal management, humidity control, and autonomous cleaning in a single compact system.

[0003] Traditionally, air circulation devices require manual intervention for cleaning, monitoring, and adjusting airflow or temperature, which is labor-intensive and inefficient. Users must frequently inspect blades or vents to remove dust and debris, and conventional fans does not detect environmental changes to optimize their operation. Similarly, separate humidifiers, heaters, or coolers are often needed to achieve desired ambient conditions, increasing energy consumption and system complexity. These devices also lack adaptive modules to account for varying room occupancy or uneven airflow distribution, limiting comfort and efficiency.

[0004] CN216430000U discloses a ceiling fan lamp of flabellum can prolong, including the footstock, the footstock can be dismantled with the fixed axle through hollow connecting rod and is connected, fixed axle and rotation shell cooperation, the fixed axle bottom has a plurality of spliced poles, the spliced pole can be dismantled with the mounting disc and be connected, the outer fringe position of mounting disc is pegged graft and is had a plurality of spliced poles, the tip of spliced pole can be dismantled and is connected with the lamp stand pole, lamp stand pole below normal running fit has the wind wheel, lamp stand pole bottom has the lamp stand, the main lamp has been installed to the mounting disc below, and the equipartition has a plurality of flabellum seats on the rotation shell outer fringe position, the flabellum seat can be dismantled with main flabellum and be connected, main flabellum one end has holds up the cover, main flabellum passes through the extension spring and prolongs the flabellum and is connected. The fan blade of the ceiling fan lamp with the fan blades capable of being extended can increase the air supply amount through extension, the original length of the fan blade is recovered after the fan blade stops rotating, the appearance is not influenced, the ceiling fan lamp is novel in shape, has the main and auxiliary lamp illumination functions, and has a good decoration effect.

[0005] US20160047609A1 discloses a self-cleaning fan assembly is provided that can be used to automatically clean the assembly's heat exchanger or air filter. In use, once the system determines that the heat exchanger/air filter should be cleaned, for example based on the total operational time or the number of use cycles for the system, or based on the air flow passing through the heat exchanger/air filter, the controller temporarily reverses the direction of the fan, thereby reversing the flow of air through the heat exchanger/air filter and forcing out dust, dirt and other debris.

[0006] Conventionally, many devices used for air circulation are limited to providing basic airflow without addressing issues such as dust accumulation, uneven distribution, or adaptive control. These existing devices also often require frequent manual cleaning and adjustment, leading to reduced efficiency, higher maintenance effort, and compromised user comfort in varying environmental conditions.

[0007] In order to overcome the aforementioned drawbacks, there exists a need in the art to develop a device that requires to be capable of providing efficient air circulation while autonomously maintaining cleanliness, regulating ambient conditions, and adapting its operation intelligently to ensure enhanced performance, user convenience, and reduced maintenance requirements.

OBJECTS OF THE INVENTION

[0008] The principal object of the present invention is to overcome the disadvantages of the prior art.

[0009] An object of the present invention is to develop a device that provides efficient and uniform air circulation across a designated region.

[0010] Another object of the present invention is to develop a device that autonomously maintains cleanliness to ensure consistent performance.

[0011] Yet another object of the present invention is to develop a device that regulates ambient conditions to enhance comfort and energy efficiency.

[0012] The foregoing and other objects, features, and advantages of the present invention will become readily apparent upon further review of the following detailed description of the preferred embodiment as illustrated in the accompanying drawings.

SUMMARY OF THE INVENTION

[0013] The present invention relates to a self-cleaning air circulation device that is capable of of delivering consistent airflow across a region, maintaining desired environmental conditions, reducing manual maintenance, and ensuring enhanced comfort, hygiene, and efficiency through intelligent and automated operation.

[0014] According to an aspect of the present invention, a self-cleaning air circulation device, comprises of a hub comprising a stationary part and a rotating part, mountable with a surface in an extendable manner, to impart a rotational motion, the hub is provided with a motor to rotate the rotatable part, attached with a telescopic rod adapted to be suspend the hub with the surface, a plurality of extendable blades attached radially with the rotating part of the hub to displace air to cause circulation of the air, each of the blades is configured with a drawer arrangement to enable an extension and retraction of the blades in accordance with require displacement of air, a camera in combination with a laser sensor embedded in the hub to detect a distance between the hub and a bottom surface and an area of the region to accordingly cause an extension and retraction of the rod to maintain a predetermined distance of the hub from the bottom surface and cause the blades to extend or retract to enable circulation in the entire region, a misting arrangement provided with each of the blades to dispense a cooling mist to maintain a humidity within a predetermined range of humidity, the misting arrangement comprises a tank stored with water attached with the blade, a plurality of iris holes provided along bottom surface of the blade, connected with the tank via embedded conduits to dispense the water via the iris holes.

[0015] According to another aspect of the present invention, the device further comprises of a humidity sensor embedded in the hub to detect an ambient humidity to accordingly cause the iris holes to dispense mist to maintain humidity within predetermined range of humidity, a thermoelectric unit installed with each of the blades to cool and heat air striking the blade to provide a thermally regulated airflow, a temperature sensor embedded in the hub to detect an ambient temperature to cause a motor driver of the motor to adjust a rotational rate of the hub for an optimum air circulation and the thermoelectric units to cool or heat the air striking the blade to maintain a temperature within a predetermined temperature range, a plurality of weight sensors integrated with the hub to detect weight of the blades, to determine presence of build-up on the blades upon detection of the weight exceeding a predetermined threshold weight, a cleaning unit installed with the hub to remove build-up detected by the weight sensors, an IMU (inertial measurement unit) installed in the hub to monitor an angular orientation and velocity to determine an unbalanced condition of the hub to cause an alert unit to generate an alert regarding the unbalanced condition, a plurality of piezoelectric actuators embedded in the blade to convert mechanical energy into electric energy to store in a battery provided in the hub to power components of the device.

[0016] While the invention has been described and shown with particular reference to the preferred embodiment, it will be apparent that variations might be possible that would fall within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
Figure 1 illustrates an isometric view of a self-cleaning air circulation device.

DETAILED DESCRIPTION OF THE INVENTION

[0018] The following description includes the preferred best mode of one embodiment of the present invention. It will be clear from this description of the invention that the invention is not limited to these illustrated embodiments but that the invention also includes a variety of modifications and embodiments thereto. Therefore, the present description should be seen as illustrative and not limiting. While the invention is susceptible to various modifications and alternative constructions, it should be understood, that there is no intention to limit the invention to the specific form disclosed, but, on the contrary, the invention is to cover all modifications, alternative constructions, and equivalents falling within the spirit and scope of the invention as defined in the claims.

[0019] In any embodiment described herein, the open-ended terms "comprising," "comprises,” and the like (which are synonymous with "including," "having” and "characterized by") may be replaced by the respective partially closed phrases "consisting essentially of," consists essentially of," and the like or the respective closed phrases "consisting of," "consists of, the like.

[0020] As used herein, the singular forms “a,” “an,” and “the” designate both the singular and the plural, unless expressly stated to designate the singular only.

[0021] The present invention relates to a self-cleaning air circulation device that is capable of efficiently circulating air across a designated region while maintaining optimal temperature and humidity, detecting and removing accumulated debris autonomously, and providing real-time monitoring and control, thereby ensuring continuous, hygienic, and thermally regulated airflow with minimal user intervention.

[0022] Referring to Figure 1, an isometric view of a self-cleaning air circulation device is illustrated, comprising a hub 101, a telescopic rod 102 integrated in the hub 101 suspended with a surface, a plurality of extendable blades 103 attached radially with the hub 101, a camera 104 embedded in the hub 101, a tank 105 attached with the blade 103, a plurality of iris holes 106 provided along bottom surface of the blade 103 connected with the tank 105 via embedded conduits 107, a thermoelectric unit 108 installed with each of the blades 103, a housing 109 installed on the hub 101 provided with wheels 110, an electromagnet 111 mounted underneath the housing 109, a scrapper 112 attached with the housing 109 by means of an articulated extendable arm 113.

[0023] The device disclosed herein comprises of a hub 101 comprising a stationary part and a rotating part, mountable on a surface in an extendable manner to impart a rotational motion. Internally, the hub 101 uses a compact motor with precision bearings to drive the rotation smoothly and quietly. Constructed from lightweight aluminum alloy or reinforced polycarbonate for durability, heat resistance, and reduced weight. The hub 101 ensures structural integrity under high-speed operation while minimizing energy consumption.

[0024] For initiating functionality of the device, a user manually presses a push-button associated with the device. The push button serves as the primary means for turning the device on and off. The push button is typically made from polycarbonate. When push button is pressed to switch on the device it allows current to flow. This sends a signal to device's microcontroller, instructing it to activate the device. The microcontroller then powers up the device, enabling them to function.

[0025] After activation of the device, the microcontroller activates a camera 104 in combination with a laser sensor embedded in the hub 101 to detect a distance between the hub 101 and a bottom surface and an area of the region. The camera 104 works as a compact CMOS image sensor module, utilizing a silicon-based photodiode array to capture light reflected from the room's bottom surface. Internally, incoming light passes through a micro lens array and color filter, converting photons into electrical charges via the photodiodes. These charges are read out row by row by a rolling shutter means, amplified, and digitized by an analog-to-digital converter (ADC) into image frames. The microcontroller then processes these frames to estimate distances and room area, enabling real-time adjustments for optimal hub 101 positioning.

[0026] Building on the camera's image data for enhanced precision, the laser sensor operates as a time-of-flight (ToF) module, emitting short pulses of infrared laser light from a vertical-cavity surface-emitting laser (VCSEL) diode toward the bottom surface. The light reflects back and is detected by a single-photon avalanche diode (SPAD) array, which measures the round-trip time with picosecond accuracy. This time is converted to distance via the speed of light formula, while the sensor's optics focus the beam for spot measurement. Integrated processing correlates this with camera 104 visuals to map the region accurately.

[0027] Based on the distance data from the camera 104, the microcontroller actuates an extension and retraction of a telescopic rod 102 adapted to be suspend the hub 101 with a surface to maintain a predetermined distance of the hub 101 from the bottom surface. The telescopic rod 102 operated by a pneumatic unit, extends or retracts the hub 101 to maintain optimal distance from the bottom surface. Internally, the rod 102 comprises concentric aluminum alloy tubes with sealed rings, driven by a pneumatic cylinder. Compressed air, regulated by the microcontroller-actuated solenoid valve, enters the cylinder, pushing a piston to extend or retract the tubes smoothly. A pressure sensor monitors air levels, ensuring precise control. The lightweight, corrosion-resistant design ensures durability and efficient operation.

[0028] Simultaneously, the microcontroller actuates a plurality of extendable blades 103 attached radially with the rotating part of the hub 101 to extend or retract for displacing air to cause circulation of the air in the entire region. Each of the blades 103 configured with a drawer arrangement to enable an extension and retraction of the blades 103 in accordance with require displacement of air. The drawer arrangement for blade 103 extension or retraction consists of a telescopic means within each blade 103, featuring nested composite or aluminium segments. A miniature linear actuator, powered by the microcontroller, drives a rack-and-pinion arrangement to slide the segments along internal guide rails, ensuring smooth and stable extension or retraction. Precision bearings reduce friction, while a limit switch provides feedback to prevent overextension. This setup, housed within the blade’s lightweight frame, adjusts blade 103 length dynamically based on laser sensor detected room dimensions for optimal air circulation.

[0029] For rotating the blades 103 to displace air, the microcontroller then actuates the motor provided with the hub 101 to rotate the rotatable part. The motor within the hub 101 is a brushless DC motor, featuring a stator with electromagnetic coils and a rotor with permanent magnets. When actuated by the microcontroller, it sends precise electrical pulses to the stator coils, creating a rotating magnetic field that drives the rotor, thus rotating the hub's outer section. Constructed with copper windings and a steel rotor, it ensures efficient, quiet operation. The microcontroller adjusts pulse timing to control speed based on sensor inputs for optimal air circulation.

[0030] An occupancy sensor installed in the hub 101 to detect a number of persons present in the region to accordingly cause the motor driver to adjust the rotational rate of the hub 101 for an optimum air circulation. The occupancy sensor uses multiple infrared sensors arranged to cover the region. These sensors detect movement, and heat, patterns associated with persons. The sensor's circuitry analyses signals from all sensors to identify multiple presence detections. When the combined data indicates several persons are present, it sends a signal to the microcontroller. The microcontroller then processes this information to determine the number of persons, enabling applications like crowd counting or adjusting system responses based on occupancy levels.

[0031] Further, a temperature sensor embedded in the hub 101 to detect an ambient temperature to cause a motor driver of the motor to adjust a rotation rate of the hub 101 for an optimum air circulation and the thermoelectric unit 108 to cool or heat the air striking the blade 103 to maintain a temperature within a predetermined temperature range. The temperature sensor detects environmental temperature by using a thermistor element that changes resistance with temperature variations. Internally, the sensor's circuitry measures this resistance change and converts it into an electrical signal. This signal is then processed by the microcontroller, which translates it into a precise temperature reading.

[0032] A misting arrangement provided with each of the blades 103 to dispense a cooling mist to maintain a humidity within a predetermined range of humidity. The misting arrangement comprises of a tank 105 stored with water attached with the blade 103. The tank 105 is constructed from durable, corrosion-resistant material such as high-grade plastic or stainless steel. The tank 105 is securely integrated within the blade 103 structure, designed to store and supply water efficiently for misting, ensuring consistent humidity control.

[0033] Further, a plurality of iris holes 106 provided along bottom surface of the blade 103 connected with the tank 105 via embedded conduits 107 to dispense the water via the iris holes 106. When actuated by the microcontroller, small servomotors rotate the shutters to open or close the passages. This modulates the airflow and mist output precisely. The microcontroller sends control signals based on humidity sensor data, enabling dynamic adjustment of the iris holes 106 to optimize humidity and airflow. The iris holes 106 ensure smooth operation, minimal wear, and reliable modulation of the mist dispersion.

[0034] The conduits 107 functions as a sealed passageway that transports water or mist from the reservoir to the outlets. Internally, the conduits 107 is designed with smooth, corrosion-resistant walls to reduce flow resistance and prevent build-up. When activated by the microcontroller, a pump inside the tank 105 opens and creating pressure that pushes the fluid through the conduits 107. The microcontroller manages this process by controlling the pump operation, ensuring a steady and precise delivery of water via the conduits 107 towards the iris holes 106. The conduit’s design ensures minimal leaks, blockages, and efficient fluid flow.

[0035] The humidity sensor embedded in the hub 101 to detect an ambient humidity to accordingly cause the iris holes 106 to dispense mist to maintain humidity within predetermined range of humidity. A humidity sensor works by using a hygroscopic dielectric material between two conductive plates. As humidity levels change, the moisture absorption alters the dielectric’s capacitance. The internal circuitry measures this capacitance variation and converts it into an electrical signal proportional to the humidity. This signal is sent to the microcontroller, which processes it to determine the ambient humidity accurately.

[0036] A thermoelectric unit 108 installed with each of the blades 103 to cool and heat air striking the blade 103 to provide a thermally regulated airflow. When activated by the microcontroller, the thermoelectric unit 108 receives an electrical signal that adjusts the current flow through its semiconductor modules. This causes one side of the thermoelectric device to absorb heat while the other expels it, depending on the polarity of the current. The microcontroller controls the direction and magnitude of the current using a driver circuit, enabling precise temperature regulation. Sensors provide feedback, allowing the microcontroller to adjust the thermoelectric unit 108 to maintain the desired temperature.

[0037] Additionally, a plurality of weight sensor integrated with the hub 101 to detect weight of the blades 103 to determine presence of build-up on the blade 103. The plurality of weight sensors integrated with the hub 101 function by measuring the force exerted by each blade 103 due to its own weight. Internally, each sensor uses a strain gauge that converts mechanical deformation caused by excess load into an electrical signal. These signals are processed by the microcontroller, which compares the measured weight with a preset threshold. If the detected weight exceeds the limit, the weight sensor indicates build-up on the blades 103.

[0038] Based on the data from the weight sensor, the microcontroller then actuates a cleaning unit installed with the hub 101 to remove build-up. The cleaning unit comprises a housing 109 provided with wheel 110 to translate over the hub 101. The housing 109 with wheels 110 operates as the cleaning unit that translates smoothly along the hub 101 surface. Internally, the wheels 110 are mounted on low-friction axles, driven by a compact motor assisted by the rotational motion of the blade 103. An embedded electromagnet 111 beneath the housing 109 ensures stable alignment by attracting the metallic portion of the blade 103.

[0039] When activated by the microcontroller, the electromagnet 111 in the housing 109 receives a regulated current from the power supply. Internally, the current passes through a coiled conductor wound around a ferromagnetic core, generating a strong magnetic field. This field creates an attractive force that pulls the electromagnet 111 toward the metallic surface of the blade 103, stabilizing the housing 109 during cleaning. The microcontroller modulates the current to control the magnetic strength, ensuring the housing 109 remains firmly attached stabilize without exerting excess force that hinder wheel 110 movement.

[0040] Further, a scrapper 112 attached with the housing 109 to remove the build-up from the blades 103. The scrapper 112 comprising a sharp plate attached with the housing 109 by means of an articulated extendable arm 113. The articulated extendable arm 113 operates through a series of hinged joints connected by miniature actuators, such as servo motors, controlled by signals from the microcontroller. Internally, each actuator adjusts the angle or length of the arm 113 segments, enabling smooth extension or retraction. This design allows the arm 113 to adapt its position dynamically, ensuring that the cleaning unit maintains consistent contact of the sharp plate with the blade 103 surface, even when encountering varying build-up thicknesses. At the end of the arm 113, the sharp plate functions as the scraping element. Internally, the plate uses its sharpened metallic edge, aligned precisely with the blade 103 surface, to shear off dust and deposits as the housing 109 translates. Together, the articulated arm 113 positions the sharp plate, while the plate performs the actual cleaning action.

[0041] Additionally, an IMU (Inertial Measurement Unit) installed in the hub 101 to monitor an angular orientation and velocity to determine an unbalanced condition of the hub 101 to cause an alert unit to generate an alert regarding the unbalanced condition. The IMU (Inertial Measurement Unit) works internally by combining accelerometers, gyroscopes, and magnetometers to sense motion and orientation. The accelerometers detect linear acceleration along multiple axes, while the gyroscopes measure angular velocity. Magnetometers, provide heading relative to the Earth’s magnetic field. These raw signals are processed through embedded filters and sensor fusion protocols to correct noise and drift. The microcontroller interprets this processed data to determine the hub’s angular orientation, velocity, and balance condition, enabling detection of unbalanced or abnormal operation.

[0042] Based on this data, the microcontroller activated the alert unit comprising a speaker mounted on the hub 101 to generated an alert regarding the unbalanced condition. The speaker works internally by converting electrical audio signals into mechanical vibrations that generate sound waves. When the microcontroller sends an audio signal, alternating current flows through a voice coil suspended within a magnetic field. The current causes the coil to move back and forth rapidly, pushing and pulling a diaphragm attached to it. This diaphragm movement compresses and rarefies surrounding air particles, producing audible sound waves.

[0043] A user interface adapted to be installed with a computing unit to establish connection with a communication unit installed with the hub 101 to remotely monitor and control the device. The user interface works internally as the medium through which commands and feedback are exchanged between the user and the device. The user interface typically comprises a touchscreen display or graphical protocol interface that presents control options, sensor readings, and alerts. When the user inputs commands, such as adjusting temperature or activating cleaning, the interface converts these inputs into digital signals. These signals are then transmitted to the computing unit for processing, while the interface simultaneously displays real-time operational data for user monitoring.

[0044] The computing unit functions internally as the central controller, processing data received from sensors, user interface, and communication channels. The computing is built around the microcontroller that executes programmed instructions. Sensor data, such as temperature, or humidity, is filtered and analysed, after which corresponding commands are generated for actuators like motors, electromagnet 111, or misting arrangement. By coordinating multiple subsystems, the computing unit ensures efficient and synchronized operation of the entire device.

[0045] While, the communication unit works internally by establishing wireless links between the device and external systems, such as smartphones, computers, or cloud servers. The communication unit incorporates transceivers (Wi-Fi, Bluetooth, or cellular) that modulate and demodulate signals for two-way data transfer. Incoming data, such as remote commands, is decoded and forwarded to the computing unit, while outgoing data, such as alerts or performance logs, is encoded and transmitted. This enables remote monitoring, control, and integration of the device into smart home ecosystems.

[0046] A plurality of piezoelectric actuators embedded in the blade 103 to convert mechanical energy into electric energy to store in a battery provided in the hub 101 to power components of the device. The piezoelectric actuators work internally by converting mechanical stress into electrical energy and vice versa. Each actuator contains a piezoelectric material that deforms when voltage is applied, producing precise linear motion. Conversely, when mechanical pressure or vibrations are applied to the material such as from blade 103 movement, it generates an electric charge. This charge is collected and stored in the battery within the hub 101.

[0047] The battery in the device works internally by storing chemical energy and converting it into electrical energy on demand. It consists of an anode, cathode, and electrolyte, which facilitate the movement of ions during charging and discharging. When powering the device, chemical reactions at the electrodes release electrons, creating a flow of current through the circuit. During charging, an external source reverses the reactions, restoring the chemical potential. The battery supplies stable voltage to the hub 101, sensors, actuators, and other components for continuous operation.

[0048] The present invention works best in the following manner, where the hub 101 as disclosed in the invention, comprises of the stationary part and the rotatable part, is mounted on the surface via the extendable telescopic rod 102. Upon activation, the motor rotates the hub 101, causing the plurality of extendable blades 103 to move and circulate air throughout the region. The camera 104 in combination with the laser sensor continuously measures the distance to the bottom surface and maps the area, enabling the hub 101 to adjust its height and extend or retract the blades 103 for optimal coverage. The humidity sensor monitors ambient humidity, activating the misting arrangement in the blades 103 to dispense water through iris holes 106 and maintain humidity within the predetermined range. Simultaneously, the temperature sensor guides the thermoelectric unit 108 on each blade 103 to heat or cool the air, while the motor driver adjusts the rotational speed of the hub 101 to achieve ideal thermal regulation. The occupancy sensor detects the number of people in the region, further optimizing airflow by dynamically controlling hub 101 rotation. The plurality of weight sensors detects the presence of build-up on the blades 103 by monitoring weight changes. Upon exceeding the set threshold, the cleaning unit, comprising the housing 109 with the wheel 110, electromagnet 111, and the articulated arm 113 with sharp plate, is activated. The electromagnet 111 stabilizes the housing 109 over the blade 103, while the articulated arm 113 positions the sharp plate to remove accumulated debris efficiently. The piezoelectric actuators embedded in the blades 103 convert mechanical energy from blade 103 motion into electrical energy, which is stored in the hub 101 battery to power the device. The IMU monitors the hub’s angular orientation and velocity, detecting any unbalanced condition, and triggers the alert unit, including the speaker, to notify the user. Finally, the user interface communicates with the computing unit and the communication module, allowing remote monitoring, control, and adjustment of device parameters.

[0049] Although the field of the invention has been described herein with limited reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. , Claims:1) A self-cleaning air circulation device, comprising:

i) a hub 101 comprising a stationary part and a rotating part, mountable with a surface in an extendable manner, to impart a rotational motion;
ii) a plurality of extendable blades 103 attached radially with the rotating part of the hub 101 to displace air to cause circulation of the air;
iii) a camera 104 in combination with a laser sensor embedded in the hub 101 to detect a distance between the hub 101 and a bottom surface and an area of the region to accordingly cause an extension and retraction of the rod 102 to maintain a predetermined distance of the hub 101 from the bottom surface and cause the blades 103 to extend or retract to enable circulation in the entire region;
iv) a misting arrangement provided with each of the blades 103 to dispense a cooling mist to maintain a humidity within a predetermined range of humidity;
v) a humidity sensor embedded in the hub 101 to detect an ambient humidity to accordingly cause the iris holes 106 to dispense mist to maintain humidity within predetermined range of humidity;
vi) a thermoelectric unit 108 installed with each of the blades 103 to cool and heat air striking the blade 103 to provide a thermally regulated airflow;
vii) a temperature sensor embedded in the hub 101 to detect an ambient temperature to cause a motor driver of the motor to adjust a rotational rate of the hub 101 for an optimum air circulation and the thermoelectric units 108 to cool or heat the air striking the blade 103 to maintain a temperature within a predetermined temperature range;
viii) a plurality of weight sensors integrated with the hub 101 to detect weight of the blades 103, to determine presence of build-up on the blades 103 upon detection of the weight exceeding a predetermined threshold weight; and
ix) a cleaning unit installed with the hub 101 to remove build-up detected by the weight sensors.

2) The device as claimed in claim 1, wherein the hub 101 is provided with a motor to rotate the rotatable part, attached with a telescopic rod 102 adapted to be suspend the hub 101 with the surface.

3) The device as claimed in claim 1, wherein each of the blades 103 is configured with a drawer arrangement to enable an extension and retraction of the blades 103 in accordance with require displacement of air.

4) The device as claimed in claim 1, wherein the misting arrangement comprises a tank 105 stored with water attached with the blade 103, a plurality of iris holes 106 provided along bottom surface of the blade 103, connected with the tank 105 via embedded conduits 107 to dispense the water via the iris holes 106.

5) The device as claimed in claim 1, wherein an occupancy sensor installed in the hub 101 to detect numbers of persons present in the region to accordingly cause the motor driver to adjust a rotational rate of the hub 101 for an optimum air circulation.

6) The device as claimed in claim 1, wherein the cleaning unit comprises a housing 109 provided with wheels 110 to translate over the hub 101, an electromagnet 111 mounted underneath the housing 109 to stabilise the housing 109 over the hub 101 and scrapper 112 attached with the housing 109 to remove the build-up, the scraper comprising a sharp plate attached with the housing 109 by means of an articulated extendable arm 113.

7) The device as claimed in claim 1, wherein a plurality of piezoelectric actuators embedded in the blade 103 to convert mechanical energy into electric energy to store in a battery provided in the hub 101 to power components of the device.

8) The device as claimed in claim 1, further comprising an IMU (inertial measurement unit) installed in the hub 101 to monitor an angular orientation and velocity to determine an unbalanced condition of the hub 101 to cause an alert unit to generate an alert regarding the unbalanced condition.

9) The device as claimed in claim 1, wherein the alert unit comprises a speaker mounted on the hub 101.

10) The device as claimed in claim 1, further comprising a user interface adapted to be installed with a computing unit to establish connection with a communication unit installed with the hub 101 to remotely monitor and control the device.