Description:FAN WITH BLUETOOTH LOW ENERGY (BLE) BASED CONTROL SYSTEM

FIELD OF INVENTION:
[001] The present subject matter described herein, in general, relates to field of home appliances, and in particularly relates to control of electrical home appliances, such as Fan using Bluetooth Low Energy (BLE) mesh technology using wireless communication devices. In more particularly, a hand handled computing can be used to control the fan using BLE Mesh technology.
BACKGROUND AND PRIOR ART:
[002] Generally, fan is controlled through wall mount regulators and remote controllers. In the method of infrared wireless controlling of a fan, the user has to physically go up to the Fan’s remote to operate the fan and select the desired speed. Further in wall mount regulators, the user has to select the speed by rotating knob of the regulator. Additionally, known controlling methods were using either, manual, capacitor based fan regulator with maximum of five speeds were commonly used. Another method of controlling is TRIAC based manual fan regulator and resistive drop based fan regulation were used. There is no monitoring feature possible with these technologies. In infrared, battery operated remotes, user needs to point the remote towards appliance’s line of sight. These infrared remotes need to be bought and handled separately. Remote may generate interference with other infrared remotes, such as television, line of sight required for operation. These remotes do not have user friendly features, such as timer, monitoring feature, furthermore only one remote is available for multiple user.

[003] Chinese Patent Publication No. CN105041700 (A) discloses a fan control system which comprises a fan and a mobile terminal which is connected with the fan through Bluetooth. The mobile terminal is provided with a microcontroller module and an acceleration sensor, a gyroscope, a direction sensor, a power switch, a speed regulation module and a motor which are connected with the microcontroller module, and the microcontroller module comprises a first control unit, a second control unit and a third control unit. According to the fan control system, a mobile phone is connected with the fan with the Bluetooth BLE function through the Bluetooth, and the effect of remote intelligent control can be achieved; the state of the mobile phone is detected in real time through the acceleration sensor, the gyroscope and the direction sensor, therefore, turning-on and turning-off of the fan are controlled by turning the mobile phone; the wind direction of the fan is changed by rotating the mobile phone; the wind speed of the fan is changed by inclining the mobile phone.

[004] US Patent Publication No. 20150325112 relates to a ceiling fan controller for controlling the operation of one or more ceiling fans using a wireless device includes a first radio transmitter/receiver operating at a first frequency suitable for communicating with the wireless device and a second radio transmitter/receiver operating at a second frequency suitable for communicating with the one or more ceiling fans and a processor operably coupled to the first and second radio transmitters to control the sending and receiving of data messages to and from the wireless device and the ceiling fan to control the operation of the ceiling fan via the wireless device.

[005] US Patent Publication No. 20140064735 relates to a system for use in issuing commands to a plurality of appliances each of a specific one of a plurality of different appliance types including a smart device adapted to transmit command communications and a plurality of low-energy consuming controllers each adapted to transmit a command to a one of the plurality of appliances of a specific one of the plurality of different appliance types in response to receipt of a command communication originating from the smart device. Transmission of commands to the appliances may be facilitated by a bridge device which may receive wireless signals, which are caused to be transmitted via interaction with an application resident in smart phone, and convert these to appropriate infrared ("IR") signals recognizable by the target appliances.

[006] US Patent Publication No. 20160119770 relates to a method and electronic device implementing the same. The electronic device includes an antenna, a communication module, and at least one processor. The processor may implemented the method, including determining, by at least one processor, directional information associated with a certain orientation of transmission or reception, transmitting, by a communication module, a scan request message comprising the directional information through wireless communication, and receiving a scan response message responding to the scan request message through the wireless communication. The electronic device according to various example embodiments of the present disclosure may be a wearable electronic device such as a smart watch, smart glasses, and the like as well as a smart phone, a tablet PC, and the like, or an electronic device in the form of a home appliance provided with a wireless communication function, such as a TV, an air conditioner, a fan, and the like. The electronic device can efficiently scan neighboring devices by being directed to the neighboring devices located in a desired direction or in desired direction and distance through various wireless communications, such as BT, Wi-fi, BLE, LTE, and the like.

[007] US Patent Publication No. 20160227351 relates to a device for supporting wireless communication. The device includes a first Bluetooth transceiver for connecting to a Bluetooth device, a second Bluetooth transceiver for connecting to a client device, one or more processors, and a memory for storing instructions executable by the one or more processors. The one or more processors may be configured to scan for one or more available Bluetooth devices via the first Bluetooth transceiver, establish a first communication connection with the Bluetooth device via the first Bluetooth transceiver, establish a second communication connection with the client device via the second Bluetooth transceiver, receive data from the client device via the second communication connection, and forward the data to the Bluetooth device via the first communication connection.

[008] US Patent No. 9,009,805 relates to a method of provisioning an electronic device. The electronic device proactively broadcasts an advertising packet that includes a device identifier associated with the electronic device. A server receives the device identifier via a client device, and issues a link approval response when it verifies that the electronic device associated with the device identifier is available for provisioning in association with a user account. In response to the link approval response, the electronic device and the client device establish communication via a short range wireless link.

[009] US Patent Publication No. 8,872,390 relates to a device and method including: an energy consumption sensor; a wireless communications component adapted for wireless communication; a processing unit, adapted to receive energy consumption data from the energy consumption sensor and transmit the energy consumption data via the wireless communications component; and a switch having: a closed state coupling the input end of the device to the output end of the device, and an open state, disconnecting the input end of the device from the output end of the device. An adaptor communicates wirelessly with a remote computing device. Preferably the remote or external computing device is a mobile communications device (MCD). An example of an MCD is a smart phone. The processing unit also controls/manages the energy flow between the outlet and appliance. Upon receiving a command or according to instructions, the processing unit can allow or restrict (disallow) the flow of energy from the outlet to the appliance. The processing unit can selectively connect the appliance to the power source and disconnect the appliance from the power source. According to some features of the system, MCD can receive a command from a user, via mobile application, to turn an appliance on or off. Alternatively and/or additionally, upon activation of a Proximity Switch feature, a selected adaptor can activate or switch on when the paired MCD is within a predefined proximity range of the adaptor device (e.g. a fan, equipped with an adaptor, can turn on when an MCD approaches.

[0010] Chinese Patent Publication No. CN104896534 (A) relates to an intelligent integrated-kitchen mainboard control system which comprises a single-chip microcomputer serving as a control unit, a monitoring sensor unit transmitting monitoring signals to the single-chip microcomputer and an executing unit controlled by the single-chip microcomputer. The monitoring sensor unit comprises a multipath weighing sensor, a smoke detection sensor, a fire detection sensor and a leakage detection sensor, and the multipath weighing sensor, the smoke detection sensor, the fire detection sensor and the leakage detection sensor are connected to a power supply through circuits. The executing unit comprises an oil fume extraction fan control module, an ignition control module and a fire control module. The single-chip microcomputer is further connected with a Bluetooth module, data of the single-chip microcomputer is transmitted to an upper computer through the Bluetooth module, and the Bluetooth module is a Bluetooth communication control port.

[0011] Chinese Patent Application Publication No. CN202957805 (U) discloses a Bluetooth controllable power switch and an electric appliance device, wherein the Bluetooth controllable power switch comprises a Bluetooth low energy consumption BLE single mode chip, a zero cross detection circuit and a silicon controlled rectifier control circuit. The zero cross detection circuit is connected with one port of the BLE single mode chip, the silicon controlled rectifier control circuit is connected with the other port of the BLE single mode chip, and the BLE single mode chip comprises a timer; when receives an external Bluetooth control on signal, the BLE single mode chip detects an AC null point via the zero cross detection circuit and starts the timer, and outputs a low level to the silicon controlled rectifier control circuit when the timer reaches a timing time, so that the silicon controlled rectifier control circuit is conducted; and when receives an external Bluetooth control off signal, the BLE single mode chip outputs a high level to the silicon controlled rectifier control circuit, so that the silicon controlled rectifier control circuit is turned off. By employing the technical scheme, the Bluetooth control problem of the power switch is solved.

[0012] US Patent Publication No. US2013303087 (A1) relates to a system for communicating via a wireless link. The system may include a watch movement, a wristband, or an appliance. The system may also include a microprocessor having a Bluetooth TM low energy radio. The microprocessor may be configured to receive a notification of an event from a Bluetooth TM device and, in response to receiving the notification, activate an indicator on the watch movement, wristband, or appliance. Furthermore, the microprocessor may be configured to receive user input and transmit data via a Bluetooth TM link to a smartphone or tablet where it may be received by an application.

[0013] Taiwan Patent Publication No.: TWM484251 (U) relates to a remote controller for controlling operation of a household electronic appliance, such as a television. In one embodiment, the remote controller comprises an antenna, a Bluetooth SOC, a speaker, and a battery. The Bluetooth SOC uses a Bluetooth low energy technique to build a wireless connection between the antenna and a cell phone. The speaker sounds according to instructions of the Bluetooth SOC. The battery supplies power to the Bluetooth SOC and the speaker.

[0014] Chinese Patent Publication No. CN204408683 (U) relates to the technical field of BLE (Bluetooth low energy) 4.0 communication and particularly relates to a RGB (Red, Green, Blue) lamp control system based on BLE (Bluetooth low energy) 4.0. The RGB lamp control system comprises a Bluetooth communication circuit, a RGB drive chip, a relay control circuit and a 5V-to-3.3V conversion circuit. The RGB drive chip is connected with a RGB lamp group and drives the RGB lamp group to operate. The relay control circuit is connected with a 220V power supply. The 5V-to-3.3V conversion circuit converts transmitted 5V current into 3.3V current, and is connected with and supplies 3.3 V current to the Bluetooth communication circuit, the RGB drive chip and the RGB lamp group.

[0015] US Patent Publication No. 20160048142 relates to an intelligent air-conditioning controlling system comprises an intelligent controlling device, an air-conditioning, a plurality of sensing devices, and a cloud server. The intelligent controlling device receives environment information and user information from the plurality of sensing devices, and calculates a target temperature. The cloud server retrieves a usage record of a user according to the user information, and executes a big data analysis for generating a historical record and recommended environment temperature according to historical data and the environment information. The intelligent controlling device receives the usage record, the historical record and recommended environment temperature and a control parameter from the cloud server, and generates a control command for the air-conditioning in accordance with the target temperature, the usage record, the historical record and recommended environment temperature and the control parameter.

[0016] Indian Patent Publication No. 1282/CHE/2008 relates to remote access to the home appliances using a mobile phone via Bluetooth. It involves the development of mobile user interface using Python on S60 platform. The application developed involves the option of selecting the device which is to be automated. Once the device is selected, the Corresponding Bluetooth signals are sent to a Bluetooth module which is interfaced with a microcontroller. This PIC Microcontroller will interpret the signal and set the corresponding bit high in the output port. A switching circuit is used which takes these bits as inputs and forwards 230V supply to the corresponding device. Thus the device is automated.

[0017] Indian Patent Publication No. 1902/DEL/2013 relates to a wireless switching device that is capable of receiving TTL signals carrying instruction data from the user’s devices like mobile phone, laptop or tablet using Bluetooth wireless technology. An AVR micro-controller is used to process and interpret those signals as per internally programmed algorithm to derive switching action for any appliance connected to the device. The device is able to interpret signals provided to it using both Bluetooth 2.0 and BLE 4.0 technology. The device is capable of single and multiple switching based on circuit configuration. The device also responds to the input instruction by transmitting set data which can be interpreted by an application in the user’s device to determine the switching action.

[0018] The article entitled “A Solution Based on Bluetooth Low Energy for Smart Home Energy Management” talks about a fuzzy-based solution for smart energy management in a home automation wireless network. The approach, by using Bluetooth Low Energy (BLE), introduces a Fuzzy Logic Controller (FLC) in order to improve a Home Energy Management (HEM) scheme, addressing the power load of standby appliances and their loads in different hours of the day. Since the consumer is involved in the choice of switching on/off of home appliances, the approach introduced in this work proposes a fuzzy-based solution in order to manage the consumer feedbacks [Mario Collotta and Giovanni Pau; Energies, 8, 11916-11938; 2015].

[0019] The article entitled “Home Automation Using Android and Bluetooth” aims at achieving automation using the widely used mobile operating system ANDROID i.e. android operating system. The electrical and home appliances can be controlled using the android mobile phones and Bluetooth Wireless Communication Protocol even if out of the house and forgot to switch off the appliances. Many electrical and home appliances like light, fan, refrigerator etc can be controlled using the android operating system. This can also be implemented at workplaces [Kanchan, Priyanka Agarwal, Mahesh Vibhute; International Journal of Science and Research (IJSR), Volume 4 Issue 10, October 2015].

[0020] The article entitled “DIY android home automation with free smartphone application” talks about DIY Android Home Automation to make your home automated using an android smartphone. This requires you to have no experience of android programming at all, as a free application is included for you to develop. Using this android application one will be able to control lights, air conditioning, door locks etc all from smartphone. This system uses Bluetooth to connect with the device and control the various appliances in home [Arvind Sanjeev; DIYhacking.com].

[0021] Thus, in view of the above prior arts, it is clear that none of the prior arts disclose additional IR remote or under light and a method of frequency selection. Some of the prior arts have generic BLE switch for any appliance and don’t have relay based capacitor switched fan regulator.
[0022] Thus, there is a need for robust wireless connectivity solution for controlling the fan with hand held computing device as well as IR remote andflick feature for manual reset.

[0023] Hence the present invention aims to solve one or more problems by the prior inventions. The invention takes the user control to a new dimension in which instead of conventional remote based control of fan functions, such as power on/off and speed regulation, these functions are controlled using the BLE mesh technology through a hand held computing device.

OBJECTS OF THE INVENTION:
[0024] The principal objective of the present invention is to provide a fan with Bluetooth low energy (BLE) mesh based control system.
[0025] The principal objective of the present invention is to provide a fan having LED under light and control of the fan with Bluetooth low energy (BLE) mesh based control system.
[0026] Another object of the present invention is to provide a fan with Bluetooth low energy (BLE) Mesh technology based robust wireless connectivity tool that can be used by any hand held computing device to control the fan.

[0027] Yet another object of the present invention is to provide a fan with Bluetooth low energy (BLE) Mesh technology that do not require additional remote or device for controlling of fan.
[0028] Still another object of the present invention is to provide a fan with Bluetooth low energy Mesh technology so that user does not need to present in the room for controlling the operation of a fan in that room, thus extending the range of Bluetooth signals.
[0029] Another object of the present invention is to provide a fan that is controllable through hand held computing device, IR remote as well as conventional switch.
[0030] Yet another object of the present invention is to provide a fan with BLE mesh technology so that multiple users can control, customize the appliance usage as per their choice.

SUMMARY OF THE INVENTION:
[0031] The present subject matter relates to a fan having Bluetooth low energy (BLE) mesh based control system for controlling the on/ off operation, speed, and timer of the fan through a hand held computing device. The present fan has blades, diffuser, fan motor, top and bottom canopy, LED lights, and printed circuit board (PCB). The printed circuit board (PCB) has power LED, infrared sensor, relay, Bluetooth module of BLE, AC (Alternating Current) filter capacitor, opto coupler, fuse, MOV (metal oxide varistors), transformer and power supply and low drop out (LDO) voltage regulator. The present fan can be controlled through the hand held computing device and its application and IR remote as well. Further, the present fan has Bluetooth Low Energy (BLE) chip which is used to create mesh network for relaying messages from one electrical appliance to another. The present fan uses CSRmesh technology to control multiple electrical devices from a single hand held computing device, simultaneously. The CSRmesh technology also helps in increasing the range of a Bluetooth device using MESH as range extender. In the CSRmesh technology, Bluetooth low energy (BLE) enable electric appliance to receive the messages and act upon the receive messages. The CSRmesh technology allows the BLE enabled electrical appliances to transmit those messages to surrounding electrical appliances or devices which are not meant for the particular device, thus BLE enabled electrical appliances extend the range of Bluetooth and turning the group of BLE enabled electrical appliances into a mesh network for the Internet of Things.

[0032] By using MESH technology in the ceiling fan, the control command from the hand held computing device travels to the intended fan by hopping from one fan to the other and finally reaching the particular Fan that the user intended to control in a scenario where multiple Fans are installed, e.g., House or shop. The Bluetooth module of the fan receives the signal or message from the hand held devices and sends the received message to the fan controller. Upon receiving the inputs from the Bluetooth module, the fan controller analyzes the received message and sends the instructions to the fan motor in traditional way. Further, the fan has infrared sensor which is wirelessly coupled with the remote controller for controlling the fan.
[0033] The present invention overcomes the shortcomings in existing Infrared remote control methods, i.e., these remotes needs to be pointed in devices’ direction, have to be separately used, battery replacement issues etc.,
[0034] Present invention needs no additional device for controlling, monitoring and customization of home appliances. The BLE mesh technology extends the range of user’s control, thus eliminating the shortcomings of the only Bluetooth.
[0035] In order to further understand the characteristics and technical contents of the present subject matter, a description relating thereto will be made with reference to the accompanying drawings. However, the drawings are illustrative only but not used to limit scope of the present subject matter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0036] It is to be noted, however, that the appended drawings illustrate only typical embodiments of the present subject matter and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments. The detailed description is described with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some embodiments of system or methods in accordance with embodiments of the present subject matter are now described, by way of example, and with reference to the accompanying figures, in which:
[0037] Fig. 1 illustrates structure of the fan, in accordance with the present subject matter;
[0038] Fig. 2 illustrates printed circuit board (PCB) with controller of the fan, in accordance with the present subject matter;
[0039] Fig. 3 illustrate block diagram of the control system of the fan with BLE mesh technology, in accordance with the present subject matter;
[0040] Fig. 4 illustrates switch flick control of fan, in accordance with the present subject matter;
[0041] Fig. 5 illustrates lower part of fan with diffuser, in accordance with the present subject matter; and
[0042] Fig. 6 illustrates isometric view of complete fan, in accordance with the present subject matter.
[0043] The figures depicts embodiments of the present subject matter for the purposes of illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DESCRIPTION OF THE PREFERRED EMBODIMENTS:
[0044] The present subject matter relates to a fan having Bluetooth low energy (BLE) mesh based control system for controlling on/ off operation, speed, and timer of the fan through a hand held computing device. The present fan has blades, diffuser, fan motor, top and bottom canopy, LED lights, and printed circuit board (PCB). The printed circuit board (PCB) has power LED, infrared sensor, relay, Bluetooth module of BLE, AC filter capacitor, opto coupler, fuse, MOV, transformer and power supply and low drop out (LDO) voltage regulator. The present fan can be controlled through the hand held computing device and the IR remote as well. Further, the present fan has Bluetooth Low Energy (BLE) chip/device which is used to create mesh network for relaying messages from one electrical appliance to another. The present fan uses CSRmesh technology to control multiple electrical appliances from a single hand held computing device, simultaneously. The CSRmesh technology also helps in increasing the range of a Bluetooth device using MESH as range extender. In the CSRmesh technology, Bluetooth low energy (BLE) enable electrical appliance to receive the messages and act upon the received messages. The CSRmesh technology allows the BLE enabled electrical appliances to transmit those messages to surrounding electrical appliances or devices which are not meant for the particular device, thus BLE enabled electrical appliances extend the range of Bluetooth and turning the group of BLE enabled electrical appliances into a mesh network for the Internet of Things.
[0045] By using MESH technology in the ceiling fan, the control command from the hand held computing device travels to the intended fan by hopping from one fan to the other and finally reaching the particular Fan that the user intended to control in a scenario where multiple Fans are installed, e.g., House or shop. The Bluetooth module of the fan receives the signal or message from the hand held devices and sends the received message to the fan controller. Upon receiving the inputs from the Bluetooth module, the fan controller analyzes the received control command and sends the instructions to the fan motor in traditional way. Further, the fan has infrared sensor which is wirelessly coupled with the remote controller for controlling the fan.
[0046] It should be noted that the description and figures merely illustrate the principles of the present subject matter. It should be appreciated by those skilled in the art that conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present subject matter. It should also be appreciated by those skilled in the art that by devising various arrangements that, although not explicitly described or shown herein, embody the principles of the present subject matter and are included within its spirit and scope. Furthermore, all examples recited herein are principally intended expressly to be for pedagogical purposes to aid the reader in understanding the principles of the present subject matter and the concepts contributed by the inventor(s) to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions. The novel features which are believed to be characteristic of the present subject matter, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures.
[0047] These and other advantages of the present subject matter would be described in greater detail with reference to the following figures. It should be noted that the description merely illustrates the principles of the present subject matter. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described herein, embody the principles of the present subject matter and are included within its scope.
[0048] Fig. 1 illustrates structure of the fan, in accordance with the present subject matter. The present fan 100 has a plurality of blades 11, a diffuser 12, printed circuit board (PCB) 13, a fan motor 14, a bottom canopy 15, a top canopy 16. The plurality of blades 11 can be two or more than two in numbers. The diffuser 12 is mounted below the PCB 13 and has transparent surface for plurality of LED lights 1 mounted the PCB 13. The top canopy 16 uses to hide top mounting of the ceiling fan 100 with the ceiling. The bottom canopy 15 uses to hide and provide aesthetic appearance to the motor hub and its joints with mounting pipe.
[0049] Fig. 2 illustrates printed circuit board (PCB) with controller of the fan, in accordance with the present subject matter. The fan PCB 13 has a plurality of power LED lights 1, a infrared sensor 2, relay 3, a Bluetooth module 4, AC filter capacitor 5, opto coupler 6, fuse 7, MOV 8, transformer and power supply 9, and low drop output (LDO) voltage regulator 10. The plurality of LED lights 1 is mounted around the PCB 13. Further, the user can control the speed of the fan 100 using InfraRed (IR) remote through conventional way. The infrared sensor 2 is provided on the PCB 13 for communication with the IR remote. The IR sensor 2 and its receiver is mounted on the PCB 13 so that it always faces towards downward, so that the fan and under light can be control by the IR remote from any direction. The fan 100 runs according to known procedures after receiving the inputs form the user. Therefore, detailed explanation and interconnecting working of the relay 3, AC filter capacitor 5, opto coupler 6, fuse 7, MOV 8, the LDO 10, the plurality of baldes 11, the diffuser 12, the fan motor 14 is not given to avoid confusion. The primary objective of the present subject matter is to control the fan and its operations using Bluetooth technology, therefore, the Applicant explains the same in detail.

[0050] In another embodiment of the present subject matter, Bluetooth Low Energy device/chips is mounted inside the Bluetooth module 4 to control the fan 100 and LED lights 1 using Bluetooth technology using the hand held computing device. The hand held computing device can be any personal digital assistance device which has a graphical user interface and Bluetooth technology. Further, the hand held computing device can be selected from Smartphone and tablet computer. The hand held computing device sends several controlling commands to the fan 100 using Bluetooth technology of the device and application running on the hand held computing device. Further, a novel application runs on the hand held computing device to control the novel fan using controlling commands. Further, the fan 100 has Bluetooth Low Energy (BLE) device provide on the PCB 13. The Bluetooth low energy device module 4 is coupled with the fan controller. The fan controller sends the controlling commands to the fan motor.

[0051] Fig. 3 illustrate block diagram of the control system of the fan with BLE mesh technology, in accordance with the present subject matter. The fan 100 has a BLE device in Bluetooth module 4 (herein after it is referred as BLE device module 4) which is used to create mesh network for relaying messages from one electrical appliance, i.e., Fan to another. The fan 100 uses CSRmesh technology to control multiple Fans from a single hand held computing device, simultaneously. The CSRmesh technology also helps in increasing the range of a Bluetooth device using MESH as range extender. In the CSRmesh technology, Bluetooth low energy (BLE) enable fan to receive the messages and act upon the receive messages. The CSRmesh technology allows the BLE enabled fan to transmit those messages to surrounding fans or electrical devices which are not meant for the particular device, thus BLE enabled Fans extend the range of Bluetooth and turning the group of BLE enabled fans into a mesh network for the Internet of Things.

[0052] By using MESH technology in the ceiling fan, the control command from the hand held computing device travels to the intended fan by hopping from one fan to the other and finally reaching the particular Fan that the user intended to control in a scenario where multiple Fans are installed, e.g., House or shop. Further, each fan has its specific passcode/authentication code for identification or authentication of the messages. Further, each message from the hand held computing device has specific fan passcode for the intended fan. For example, user sends the control message for Fan A from the hand held computing device. The sent message has specific passcode along with the control command for the Fan A. When Fan B receives this message, the BLE device module of Fan B compares the specific passcode with its passcode. Upon unsuccessful comparing, the Fan B sends the message to next Fan for comparing and use. In this way, the message received to the intended fan A in shortest path without bothering about the range of Bluetooth and without interfering with other electrical appliances.

[0053] As illustrated in the fig. 3, the Bluetooth module 4 of the fan 100 receives the signal or message from the hand held devices and compares the passcode/authentication code present in the message with the passcode of the present fan. If the passcode matches with the fan, the Bluetooth module decodes the message and sends the control commands present in the message to the fan controller in their language. Upon receiving the control commands from the Bluetooth module 4, the fan controller analyzes the control commands and sends the instructions to the fan motor 14 in known way. Further, the Bluetooth module 4 has receiver also, if it receives the message intended for another fan or appliance it transmit the message to next available electrical appliance. In the present subject matter, CSRmesh technology is used to control multiple devices from a single hand held computing device, simultaneously. The CSRmesh technology also helps in increasing the range of a Bluetooth device using MESH as range extender.
[0054] In order to configure the new fan 100 on the application of the hand held computing device and adding the new fan 100 to the network. When Bluetooth device of the fan 100 is on, the hand held computing device shows the number of available electrical appliances which are paired and un-paired with the hand held computing device. The user can pair or un-paired device by selecting the same in the hand held computing device. Upon selecting the un-paired electrical appliances, under-light of the fan blinks thrice which confirms association of the hand held computing device with the electrical appliance, such as fan. With help of application of the hand held computing device, the user can set a timer up to 8 hours, with the desired speed at the expiry of timer at different time intervals. With the help of four relays 3 and three safety capacitor 5, eight different speeds of fan can be achieved. The SMPS power supplies 9, 10 are used to power up the Bluetooth low energy (BLE) module, with fuse protection 7 and surge protection 8. Furthermore, an auxiliary temperature sensor can be deployed in the room for automatic speed regulation of the fan based on the temperature of the room. The auxiliary temperature sensor also has BLE device/chip to connect with the BLE chip based fan. The auxiliary temperature sensor can also send the control commands to the BLE chip of the fan to control the speed of the fan based on the room temperature and predefined algorithm.

[0055] Fig. 4 illustrates switch flick control of fan, in accordance with the present subject matter. Fig. 4 illustrates the conventional control of the fan. The user can control the speed of fan by flicking the conventional switch 17 connected to AC mains 19 in pre-defined sequences. In other words, the fan with Bluetooth mesh technology can be controlled by the conventional regulator, such as TRIAC based, Capacitor based, and resistance base. When the fan 100 is not responding to the commands send by the hand held computing device, the switch flick control can be used for resetting Bluetooth connection of the fan 100. In case of any problem with the Bluetooth system, the user can switch on/off the power switch 5 times successively to reset it to the factory default settings whereby the BLE based Fan 100 again becomes available for re-pairing and also starts running at the maximum speed, i.e., 8th speed level. The speed of the BLE based fan is increased or decreased to any intended speed out of the 8 Speeds after a particular duration of time ranging between 30 minutes to 8 hours. User generally feel cold in the night and have to get up to decrease the speed of Fan which is an inconvenience, this feature solves the problem. Time interval for decreasing the speed of BLE based Fan is set from the Application of the hand held computing device, and the command is sent to the fan microcontroller of the PCB in the BLE based fan, which maintains the time interval count and does the needful when the set time is reached. After setting the time even if the hand held computing device goes off due low battery or whatever reason, the timer still keeps on running on the control PCB, because command is stored in memory of the Bluetooth module 4.

[0056] Fig. 5 illustrates lower part of the fan with diffuser, in accordance with the present subject matter. The lower part of the fan 100 has a main shaft bolt hole 20, metal base for PCB holding 21, diffuser 22, hole in metal base for holding the bottom dome 23 and slide lock for locking diffuser 24. The bottom dome 23 gives aesthetic appearance to the BLE based fan.

[0057] Fig. 6 illustrates the isometric view of the whole fan structure, in accordance with the present subject matter. The fan 100 has the plurality of blades 11, the bottom canopy (15), the top canopy 16, the false cover 18, the metal base for PCB holding 21 and the diffuser 22.

[0058] The present subject matter is free from the shortcomings of existing Infrared remote control methods, i.e., these remotes needs to be pointed in devices’ direction, have to be separately used, battery replacement issues, etc. The present subject matter needs no additional device for controlling, monitoring and customization of the home appliances. The BLE mesh technology extends the range of user’s control, thus eliminates the only shortcomings of the Bluetooth.
[0059] Although embodiments for the present subject matter have been described in language specific to structural features, it is to be understood that the present subject matter is not necessarily limited to the specific features described. Rather, the specific features and methods are disclosed as embodiments for the present subject matter. Numerous modifications and adaptations of the system/component of the present invention will be apparent to those skilled in the art, and thus it is intended by the appended claims to cover all such modifications and adaptations which fall within the scope of the present subject matter.

Reference of the parts of drawings:
[0060] 1- power LED
[0061] 2- Infrared Sensor
[0062] 3- Relay
[0063] 4- Bluetooth module
[0064] 5- AC filter capacitor
[0065] 6- Opto coupler
[0066] 7- Fuse
[0067] 8- MOV
[0068] 9- Transformer, power supply
[0069] 10- LDO
[0070] 11- Blade
[0071] 12- Diffuser
[0072] 13- Fan controller PCB
[0073] 14- Fan Motor
[0074] 15- bottom canopy
[0075] 16- top canopy
[0076] 17- Normal switch
[0077] 18- False cover
[0078] 19- Wall socket
[0079] 20-Main shaft bolt hole
[0080] 21- Metal base for PCB holding
[0081] 22- Diffuser
[0082] 23- Hole in metal base for holding the bottom dome
[0083] 24- Slide lock for locking diffuser

Claims:We Claim:
1. A fan (100) with Bluetooth low energy (BLE) based control system for controlling operations of the fan (100), the fan (100) comprising:
a fan microcontroller (13);
a Bluetooth Low Energy (BLE) device module (4) is coupled with the fan controller (13), wherein the BLE device (4) receives control command and transmits the received control command to the fan microcontroller (13) for controlling operations of the fan (100).

2. The fan (100) as claimed in claim 1, wherein the fan (100) further comprises a plurality of blades (11), a fan motor (14), a fan controller printed circuit board (PCB) (13), wherein the fan controller PCB (13) comprises the fan controller and the BLE device (4),
wherein the fan controller PCB (13) has power a plurality of LED lights (1), infrared sensor (2), relay (3), AC filter capacitor (5), opto coupler (6), fuse (7), MOV (8), transformer and power supply (9) and LDO (10).

3. The fan (100) as claimed in claim 2, wherein the plurality of LED lights (1) and the IR receiver (2) are mounted on the PCB (13) facing downward direction to receive inputs from IR remote from any direction.

4. The fan (100) as claimed in claim 1, wherein BLE device module (4) mounted on the fan controller PCB (13) allows communication between a hand held computing device over BLE channels and through MESH technology and the fan (100);
the hand held computing device sends control command to the BLE device module (4) of the fan (100), wherein the control command from the hand held computing device travels to the intended fan (100) by hopping from one fan to the other and finally reaching the particular intended fan (100) that the user intended to control.

5. The fan (100) as claimed in claim 1, wherein the BLE device module (4) has a specific passcode for authentication of the control message.

6. The fan (100) as claimed in claim 1, wherein the BLE device module (4) has receiver and transmitter, the BLE device module (4) receives the control signal through receiver from the hand held computing device and compare the control signal passcode with the fan passcode,
if pass code of the control signal matches with the passcode of the fan, the BLE device module (4) analyzes the control signal and sends the analyzed signal to the fan controller (13) for operations of the fan (100) and for controlling the operations of the fan (100),
if the passcode of the control signal does not matches with the passcode of the fan, the BLE device module (4) transmits the control signal to next electrical fan.

7. The fan (100) as claimed in claim 1, wherein the fan (100) has eight different speeds which are achieved by four relays (3) and three safety capacitors (5).

8. The fan (100) as claimed in claim 1, wherein the BLE device module (4) receives power from SMPS power supplies (9, 10) with fuse protection (7) and surge protection (8).

9. The fan (100) as claimed in claim 1, wherein the fan (100) has IR sensor (2), wherein the IR sensor (2) is used to control the fan (100) from IR remote.

10. The fan (100) as claimed in claim 1, wherein lower part of the fan (100) has a main shaft bolt hole (20), metal base for PCB holding (21), diffuser (22), hole in metal base for holding the bottom dome (23) and slide lock for locking diffuser (24).