The present invention relates to a system and method of multiple battery. More particularly, the present invention relates to the IoT based system for multiple battery selection irrespective of battery chemistry.
BACKGROUND AND PRIOR ART
[002] Selector circuits are typically utilized in a power supply block for various electronic devices. Such selector circuits are generally designed to select between a DC power source, e.g., an AC/DC adapter, and a rechargeable battery. Such selector circuits are not designed to make selections of two or more types of batteries for operation. In addition, in various electronic devices like a laptop computer, such selector circuits are typically controlled via control signals communicated via a System Management Bus (SM Bus) according to a specified protocol. Such selector circuits typically cannot independently ascertain, correct, and notify other components in the power supply block, and are not configured to accept control signals from an associated host power management unit.
[003] Reference may be made to the following known arts:-
[004] 2336/DEL/2010 relate to a system for multiple battery selection in a power backup system comprises a battery selector circuit connected to a controller with battery selection and charger selection logic, user selection interface unit to select the type of battery and charger unit connected to the controller to charge battery. This system is controlled by the power backup system whereas the present

invention provides an IoT based system and method to control and monitor the battery irrespective of the location.
[005] US2007069689 relate to a battery charger for charging one or more rechargeable batteries. The charging circuit includes a microcontroller configured detects the presence of an AAA size battery and adjusts the charging current according to the size and type of battery.
[006] Reference may be made to an article entitled "IoT-Based Battery Monitoring System for Electric Vehicle" by Mohd Helmy, January 2018 International Journal of Engineering 8B Technology 7(4.31):505-510 talks about the application of Internet-of-things (IoT) in monitoring the performance of electric vehicle battery. It is clear that an electric vehicle totally depends on the source of energy from a battery. However, the amount of energy supplied to the vehicle is decreasing gradually that leads to the performance degradation. This is a major concern for battery manufacture. In this work, the idea of monitoring the performance of the vehicle using IoT techniques is proposed, so that the monitoring can be done directly. The proposed IoT-based battery monitoring system is consists of two major parts i) monitoring device and ii) user interface. Based on experimental results, the system is capable to detect degraded battery performance and sends notification messages to the user for further action.
[007] US patent no 7,489,110 and 7,009,364 relate to a selector circuit configured to select among a DC power source and a plurality of batteries for an electronic device. The selector circuit is responsive to an output signal from an associated power management unit. The selector circuit is further configured to permit parallel operation of two

or more of the batteries. The selector circuit may further act to independently verify power conditions and override instructions from the PMU in certain instances to enhance power supply safety and battery life such as by preventing inter battery current flow from a higher potential battery to a lower potential battery coupled in parallel.
[008] Publication no EP1575177 discloses the battery switching circuit for a portable communication device provided with a plurality of batteries in which the total amount of charged power of the batteries can be consumed completely. The battery switching circuit prevents a voltage from being applied from one battery to another battery.
[009] US publication no 20090167091 describes the selector circuit configured to select among a DC power source and a plurality of batteries for an electronic device. The selector circuit includes a first comparator configured to compare a first input signal representative of a voltage level of the DC power source with a first threshold level and provide a first output signal representative of a difference between the first input signal and the first threshold level, and a selector output circuit.
[010] US patent no 7,501,720 relates to a selector circuit configured to select among a DC power source and a plurality of batteries for an electronic device. The selector circuit includes a first comparator configured to compare a first input signal representative of a voltage level of the DC power source with a first threshold level and provide a first output signal representative of a difference between the first input signal and the first threshold level, and a selector output circuit. The selector output circuit is configured to provide selector output signals that control selection among the DC power source and the plurality of

batteries. The selector output circuit providing said selector output signals to select the DC source and deselect the plurality of batteries if the first output signal is representative of the voltage level of said DC power source being greater than the first threshold level.
[Oil] US publication no WO2008155209 relates to a switch with multiple battery terminals and a pair of connector clamps, wherein the battery terminals and the pair of connector clamps each have a positive pole and a negative pole provided with a switch for the selectable connection of the battery terminals to the connector clamps. The switch has switch elements that connect at least two subgroups of battery terminals in a selectable manner in series or in parallel to at least one group, and said switch connects at least one group to the pair of connector clamps.
[012] Publication no KR20060060519 discloses the charger for a secondary battery capable of charging any secondary battery with a charging rate of substantially 100% regardless of the type or version thereof comprises a voltage value increment device for incrementing a check voltage level at a specified pitch from a lowest voltage level lower than a rated full charge balance voltage level, a selector switch for switching the charging voltage to a specified charging application voltage level or the check voltage level, a first judging means for making a decision whether a current level detected by a current detecting section is lower than a criterion level or not; and a second judging means for making a decision whether the time required by the first judging means for making current affirmative decision after previous affirmative decision exceeds twice of the time required for making the previous affirmative decision after the preceding affirmative decision.

[013] Reference may be made to an article by "Solar Taos Product Catalog, 2010" The article talks about high current switch designed for battery switching in boats but can be used in land-based units. It permits selection between one of two batteries or the connection of both batteries in parallel. The "off position also acts as a battery disconnect.
[014] Reference may be made to an article by "C.G. Edwards 8B CO. Inc, August 1, 2009" The article talks about Battery selector switches for use with two or more batteries and single or dual engine systems. They permit selection between batteries for starting or charging or operation of both batteries in parallel. They allow the addition of an extra battery for use with accessories. The "OFF" position also acts as an emergency disconnect in the event of an electrical problem.
[015] Reference may be made to an article by "Rat Sport" The article talks about battery selector switch locking which permits selection between batteries for starting and charging or operation of both batteries in parallel.
[016] Reference may be made to an article by "Nex Tag, Inc, 1999-2010" The article talks about marine battery selector switch used with two or more batteries and single or dual engine systems. They permit selection between batteries for starting and charging or operation of both batteries in parallel.
[017] Thus, a number of selector circuits are provided for selecting multiple type of batteries but none of the system describes the IoT based system and method of selecting the battery from remote location.

[018] With all the above discussed restrictions or limitations, it is required to have an IoT based system and method for multiple battery selection irrespective of battery.
OBJECTS OF THE INVENTION
[019] The principal object of the present invention is to provide an IoT based system and method for multiple battery selection irrespective of battery chemistry.
[020] Another object of the present invention is to provide an IoT based system and method for multiple battery selection which can be monitored and controlled through user from remote location.
[021] Yet another object of the present invention is to provide an IoT based system and method for multiple battery selection which can be used with the solar power backup system, power backup system or charger.
[022] Still another object of the present invention is to provide an IoT based system and method for multiple battery selection which monitors and controls the charger of electric vehicle.
SUMMARY
[023] Accordingly the present invention relates to an IoT based system and method for multiple battery selection which can be used with the solar power backup system, power backup system or charger.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

[024] Further objects and advantages of this invention will be more apparent from the ensuing description when read in conjunction with the accompanying drawings and wherein:
[025] Fig. 1 shows block diagram of an IoT based system and method of multiple battery selection according to the present invention;
DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING DRAWINGS
[026] The present invention discloses an IoT based system and method for multiple battery selection in a power backup system/ charger. Reference may be made to Figure 1 which shows the block diagram of an IoT based system and method for multiple battery (A) selection irrespective of battery chemistry. The system comprises solar power backup system (la) with/ without battery management system (BMS) battery selector circuit (1) connected to a IoT based central control unit (2) with battery selection and charger selection logic. User interface unit (2) is provided to select the type of battery and charger unit connected to the controller of the charger for charging battery. All the details of the type of battery are stored in the IoT based central control unit (2). The selector circuit (1) is connected to a IoT based central control unit controls and monitors the parameters of power backup system characterized in that BMS communicates with the chargers and backup system to change parameters according to the parameters supplied by the BMS a power backup system with multiple battery and charger selection.
[027] As the type of battery is identified, the controller (2) compares and identifies the respective charging parameters such as but not

limited to boost and absorption voltage and current. The boost and absorption voltage changes depending on the type of battery used. The system shows the variation with difference/ or fluctuation in the voltage and communicates it to the control unit of backup system or charger and this switch can change the mode of the backup system.
[028] The controller of backup system or battery charger is controlled by IoT based control unit and defines the parameters from the server. All the system parameters can be monitored IoT based control unit and the switching of the backup system can be done remotely during the change of battery chemistry. This is applicable for the charger system for the e-vehicle which can be remotely programmed through the IoT based control unit.
[029] In an embodiment the battery management system (BMS) if e-vehicle is in communication with the chargers and backup systems so that they can be activated by the BMS protocols and can change parameters according to the parameters supplied by the BMS such as to cut off the charging, discharging or reducing the charging current or change the cut off voltage of battery.
[030] Numerous modifications and adaptations of the system 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 true spirit and
scope of this invention.

WE CLAIM:
1. An IoT based system for multiple battery selection irrespective of battery chemistry comprises solar power backup system with battery management system (BMS) battery selector circuit connected to a IoT based central control unit with battery selection and charger selection logic, user interface unit to select the type of battery and charger unit connected to the controller of the charger for charging battery wherein the selector circuit connected to a IoT based central control unit controls and monitors the parameters of power backup system characterized in that BMS communicates with the chargers and backup system to change parameters according to the parameters supplied by the BMS.
2. The IoT based system for of multiple battery selection, as claimed in claim 1, wherein the parameters controlled by IoT unit are battery type, cut off the charging, discharging or reducing the charging current or change the cutoff voltage of battery.
3. The IoT based system for of multiple battery selection, as claimed in claim 1, wherein the charger of battery is a separate unit or a part of the power backup system.
4. The IoT based system for of multiple battery selection, as claimed in claim 1, wherein the said system is used with the electric vehicle charger for multiple battery selection.
5. The IoT based system for of multiple battery selection, as claimed in claim 1, wherein the controller of backup system or battery

uger is controlled and monitored from the loT based server for ' defined parameters.
E IoT based system for of multiple battery selection, as claimed claim 1, wherein the switching of a backup system or battery argcr can be done remotely during the change of battery smistry.