The present invention relates to a Fan which can be controlled through a mobile application and/or handheld remote and/or conventional rotary mechanism. This provides for an ease of operation for the consumer who is used to controlling fan through a traditional rotary mechanism in addition to an automated control through mobile applications/handheld remotes.
Background of the invention
In any household the Fans speeds are controlled using Rotary Fan regulators. These rotary mechanisms are the most accepted form of fan speed controllers in the consumer market. However, these rotary Fan Dimmers do not lend themselves to be easily integrated into any home automation system due to its rotary mechanism. The automation fan speed controllers currently available in the home automation space are generally Triac based and do not have any rotary physical mechanism. The home automation applications based on Internet of Things (IoT) is fast catching up the imagination of the consumers. The Internet of Things (IoT) is undeniably transforming the way of Living of a common man and the businesses. Its adoption has proven well suited for home, buildings and sectors that manage a large number of assets and coordinate complex and distributed processes.
The Internet of Things (IoT) is a distributed system for creating value out of data. It enables heterogeneous physical objects to share information and coordinate decisions. The impact of IoT in the residential/commercial sector results in significant improvements in efficiency, productivity, profitability, decision-making and effectiveness. IoT is transforming how products and services are connected over the internet and how they interact with each other. It is also re-defining the interaction between people and machines.
Overall, IoT would allow for the automation of everything around us.

However, considering that there is going to be a proliferation of IoT automation products the challenge that is emerging is the convergence of these technologies, providing them interconnect to the smart city grid, and then to intelligently manipulate the system to work beyond the regular control and automation.
Objects of the Invention
There has been proliferation of Internet of Things (IoT) enabled home automation systems in the market. Light Dimmers are available in the market which can work along with the conventional electrical switches. However, there are no such Fan Speed Controllers which can help control the Fan Speed both through the traditional rotary switches and the mobile applications as well. Moreover, it is well known fact that a Fan is a complex load and do not easily lend itself to the speed control through the Triac based systems in long run the way it is done for the light system. Different makes of Fans have different properties and hence Triac based controls tend to fail in long run. Rotary Fan regulators are found to be most reliable and popular fan speed controllers in any household use.
Objective One: Enable the integration of standard rotary Fan Regulator with the IoT enabled home automation systems.
Objective Two: Use the manual Rotary Fan Regulator and the wireless switching mechanism (based either Z wave, Zigbee, RF, Wi-Fi, IR or any other standard wireless protocol) to control the fan speed manually and/or through a home automation system using a mobile application and/or a handheld remote in tandem with the rotary mechanism.
Objective Three: Send the status of the current speed to the user when connected with the IoT based home automation system even when the fan speed is changed manually.
Objective Four: Provide the overriding operations between manual and automated control system.

Objective Five: Keep the device retrofit fully fitting into the existing modular electrical boxes.
SUMMARY
An embodiment of the present invention describes an Internet of Thing (IOT) based system for regulating speed of a fan either using conventional rotary mechanism or wirelessly through a user device. The system comprises, a user device adapted to provide one or more speed regulating signals, a wireless control switching module wirelessly connected to the user device adapted to process one or more speed regulating signals received at an input port, and one or more switching relays connected to an output port of the wireless control switching module for receiving one or more trigger signals, the trigger signal triggers at least one switching relay from the one or more switching relays, and a regulating circuit connected to the one or more switching relays for providing controlled current to the fan, thereby regulating the speed of the fan.
According to an embodiment of the present invention, the system comprises a rotary switch for providing one or more speed regulating signals to the wireless control switching module.
According to an embodiment of the present invention, the user device includes an application for providing one or more speed regulating signals.
According to an embodiment of the present invention, one or more speed regulating signals are provided by one of a Handheld Remotes using Infrared/Radio Frequency and Home Automation Gateways.
According to an embodiment of the present invention, the wireless control switching module wirelessly connected to the user device or home automation gateways through various wireless technologies including Z wave, Zigbee, Bluetooth, and/or Wi-Fi.

According to an embodiment of the present invention, the system is adapted to utilize the proven fan stepped regulation techniques through phase difference to provide the longevity to the system.
According to an embodiment of the present invention, the system is adapted to have an overriding control system in which the latest mode of control overrides the previous setting.
According to an embodiment of the present invention, the system is adapted to integrate with multiple home automation gateways and also have its own application.
According to an embodiment of the present invention, the system is a retrofit system and able to even automate any existing Fan Regulator.
According to an embodiment of the present invention, the system is adapted to integrate with the cloud IoT technology to connect with other devices and also provide the historical data for data analysis.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Figure 1 depicts the schematic diagram of the present invention as connected to a mobile application through a Control System.
Figure 2 depicts the schematic diagram of the present invention as connected in another way to the mobile application.
Figure 3 depicts the schematic diagram of the present invention as controlled through the remote.
Figure 4 shows the components of the present invention.

Figure 5 shows the schematic connectivity diagram within the components.
Figure 6 shows the schematic circuit and connectivity diagram of the Wireless Control & Switching Module.
Figure 7 shows the schematic circuit diagram of the regulator circuit.
DETAILED DESCRIPTION OF THE DRAWINGS
The example embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The description herein is intended merely to facilitate an understanding of ways in which the example embodiments herein can be practiced and to further enable those of skill in the art to practice the example embodiments herein. Accordingly, this disclosure should not be construed as limiting the scope of the example embodiments herein.
The Invention is envisaged to automate the conventional fan regulators by providing the control through the independent application or through the home automation systems making it a multi way control for the fans i.e. through the manual change of the regulator position and/or the mobile application and/or handheld remote control or any of the combinations. The step regulation circuitry of the regulator is fully explored by the invention for an efficient control of the fans.
FIGURE 1 one particular way of the invention connecting with the automation
system. The invention is connected with the control Gateway through its wireless
technology (based either Z wave, Zigbee, RF, Wi-Fi, IR, Bluetooth or any other
standard wireless protocol). The control gateway in turn is connected with the mobile application. The Fan can now be controlled manually through the rotary switch or
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through the mobile application. Any change in the fan speed will be appropriately reflected in the mobile application status.
FIGURE 2 depicts another way of using the invention. The invention is connected directly with the mobile application through its Wireless module to the Wi-Fi router. The Fan can now be controlled manually through the rotary switch or through the application. Any change in the fan speed will be appropriately reflected in the mobile application status.
FIGURE 3 depicts another way of using the invention. The invention is directly controlled by a handheld wireless remote.
FIGURE 4 shows the major components of the invention as illustrated: -
1. The front part is the rotary face (Referred to as Rotary Switch henceforth) with 3-5 step speed
2. Wireless Control & switching module (Referred to as Wireless Control & Switching Module henceforth) having two main sub modules:

(a) Wireless Processor Board. The Wireless can be Z-Wave, Zigbee, Wi-Fi (2.4 GHz or 5 GHz), Infra Red, Bluetooth or any other wireless protocol as suitable for the invention.
(b) The Switching Relays convert the low level output voltages to high voltage as needed for the output load.
3. The Regulating Circuit (Referred to as Regulator Circuit henceforth) is the
combination of electronic components for providing stepped output to the fan
to control the speed of the fan. It is relevant to mention here that the load can
be anything other than fan as well which lends itself to the phased dimming.
In one embodiment, the wireless control & switching module includes one or more first set of predefined instructions for performing one or more actions.
FIGURE 5 shows the connectivity of the components and its general functioning.
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The rotary switch common point is connected to Triggering voltage which can be either AC or DC and the outputs are connected to the input ports of the Wireless Control & Switching Module. The output ports of the Wireless Control & Switching Module are connected to the inputs of the Regulator Circuit.
The invention functions in the following way:
1.1 Manual Regulation: At speed Zero the Rotary Switch is set at zero speed thus no voltage appears at any of triggering ports of the Wireless Control & Switching Module. Hence no voltage appears in any of the output ports of the Wireless Control & Switching Module which means no voltage to the Regulator Circuit and hence the Fan is in Off State. Turning the Rotary Switch to any of the speed setting results in input voltage to the corresponding triggering port of the Wireless Control & Switching Module which in turn results in the voltage at the corresponding output port of the Wireless Control & Switching Module and hence the corresponding speed is set by the Regulator Circuit. The status of the speed is reflected in the mobile application.
1.2 App based Control. The user can see the various fan speeds in the mobile application or application configured in a user device. Selection of any speed in the mobile Application is transmitted to the Wireless Control & Switching Module which in turn switches on the corresponding output port to ON condition. This results in setting of the corresponding speed by the Regulator PCB. There are two modes of app based control: -

(a) If the invention is Wi-Fi based then the Fan is controlled directly through the native application developed for the same along with the invention. In that case the user can add, configure and control the Fan through the native application.
(b) If the invention is integrated to the third party automation gateway then the control is available through the gateway application that talks to the invention through the APIs.
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In one embodiment, the application configured in the user device is adapted to perform one or more actions based on one or more second set of predefined instructions.
1.3 Handheld Remote Control. The user can use a handheld remote for selection of the Fan Speed. Pressing of the relevant speed button operates the corresponding port of the Wireless Control & Switching Module which sets the corresponding fan speeds.
1.4 Combination Control. The invention can also be operated through the combination of the above methods mobile application, manual and remote unit.
1.5 Override Function. Both manual and automated/remote functions override the previous one in operation. Hence manually rotating will set the speed as per the Rotary Switch selection irrespective of the selection through the application/remote and vice versa.
FIGURE 6 shows the further breakdown of the Wireless Control & Switching Module. It consists of two main components which work in tandem to produce the desired output.
The first one is Wireless Processor Board, which is the heart of the invention. The functions of the Wireless Processor Board are as follows: -
(a) House the control logic embedded into its chip.
(b) Provide the wireless connectivity to the other network devices.
(c) Receive the inputs either directly through the Rotary Switch or the external devices through the wireless channel or cloud.
(d) Process the inputs and provide the outputs as desired to the Switching Relays in combination as per the logic.
(e) Broadcast the status of the load to the wireless network at regular intervals.
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(f) Provide the status of the load on receiving the request from the external devices such as mobile application, Gateways etc.
(g) Remember the last status in case of power failure and revert the system back to the last status once power is restored.
(h) Maintain the Historical log for data analysis.
(i) Receive the commands through the cloud and execute them.
(j) Send status feedback to the cloud for data analysis.
The second main components are the Switching Relays which are triggered as per the output from the Wireless Processor Board. The common contact of all the Switching Relays are connected to the desired output voltage needed for the Fan. The switching of the relays then enables to route this voltage to the Regulator Circuit. The Relays can be triggered in single mode or the combination mode to produce the desired phase difference in the Regulator Circuit and hence the speed of the Fan.
FIGURE 7 shows the regulating circuit to produce the desired phase difference
depending upon the input/combination of the inputs and hence the speed variation.
This circuit is a standard RC components combination and may vary per the load
value.
Input - Output Mapping Sequence

Rotary Pins Wireless Control and
Switching Module
Input Pin Active Switching
Relays/Regulator
Circuit Pins Speed Achieved
1 SI 01/1 1
2 S2 02/2 2
3 S3 02/2, 03/3 3
4 S4 04 4

We Claim:

An Internet of Thing (IOT) based system for regulating speed of a fan either using conventional rotary mechanism or wirelessly through a user device, the system comprising:
a user device adapted to provide one or more speed regulating signals;
a wireless control switching module wirelessly connected to the user device adapted to process one or more speed regulating signals received at an input port; and
one or more switching relays connected to an output port of the wireless control switching module for receiving one or more trigger signals,
the trigger signal triggers at least one switching relay from the one or more switching relays; and
a regulating circuit connected to the one or more switching relays for providing controlled current to the fan, thereby regulating the speed of the fan.
The system as claimed in claim 1 comprising a rotary switch for providing one or more speed regulating signals to the wireless control switching module.
The system as claimed in claim 1, wherein the user device includes an application for providing one or more speed regulating signals.
The system as claimed in claim 1, wherein one or more speed regulating signals are provided by one of a Handheld Remotes using Infrared/Radio Frequency and Home Automation Gateways.

The system as claimed in Claim 1, wherein the wireless control switching module wirelessly connected to the user device or home automation gateways through various wireless technologies including Z wave, Zigbee, Bluetooth, and/or Wi-Fi.
The system as claimed in Claim 1, wherein the system is adapted to utilize the proven fan stepped regulation techniques through phase difference to provide the longevity to the system.
The system as claimed in Claim 1, wherein the system is adapted to have an overriding control system in which the latest mode of control overrides the previous setting.
The system as claimed in Claim 1, wherein the system is adapted to integrate with multiple home automation gateways and also have its own application.
The system as claimed in Claim 1, wherein the system is a retrofit system and able to even automate any existing Fan Regulator.
The system as claimed in Claim 1, wherein the system is adapted to integrate with the cloud IoT technology to connect with other devices and also provide the historical data for data analysis.