FIELD OF THE INVENTION

The present invention relates to a fully automated process for filling or re-filling overhead tank of liquid. The process of the present invention is wireless and senssorless liquid level controller (LLC) system for overhead tanks. The controller system of the present invention is for maintaining level of liquid in overhead tank during filling by pump or motor and prevents overflow to stop the wastage of liquid. The present invention is useful for any place where liquid is to fill upper from lower. The use of the system can be at residential as well as at industrial places.

And specially this system is design to save water for domestic and industrial purpose for saving the water.

BACKGROUND OF THE INVENTION

Till today there are many different techniques for filling or re-filling of overhead liquid tanks like capacitor sensor, magnetic float switch technique, ultrasonic technique and radio technology for data transmission etc. but all these are attached with wire and/or one item inside liquid of overhead tank. This makes the systems of overhead filling or refilling of overhead liquid tanks bulkier and heavier with wire and sensors. Moreover, senssors inside overhead liquid tanks needs periodic maintenance.

In present invention it is focused on maintenance issues and problems as mentioned above to make the technology more effective by deleting senssors inside overhead liquid tanks and deleting the signal caring cables stretched till overhead tank. Present invention is providing a fully automated wireless and senssorless liquid level controller (LLC) system for overhead tanks that is without sens sing element or any radio frequency transmitter inside or outside or any battery connected to overhead tank. Present invention has no wireless data transmission, just a unit to install at pump set control box at floor of lower level from where liquid to be pumped to upper side.

Present invention is a very unique system in which there is no part or item of the system is in contact to liquid of overhead tank.

DETAILED DESCRIPTION OF THE FIGURES

Figure 1 is layout of process of filling overhead tank along with arrangement of lower and upper tanks and calculation of size of overhead tank, with example of 1000 liters.

Figure 2 is layout of arrangement of device

The present invention relates to a fully automated process for filling or re-filling overhead tank 2, of liquid to fill from lower tank 1, comprises wireless and senssorless liquid level controller (LLC) system for overhead tank 2, to prevent overflow of liquid 3. A system of present invention comprises a device 8, to install at pump set control box 9, at lower level from where liquid to be pumped to upper side. The liquid level controller of the present invention maintains level of liquid 4, in overhead tank 2, during filling by pump or motor 5, via throw pipe 6. A device 8, comprises a program which set in relation of tank's parts verses 24 hours using information of tank size by height 7, and/or area of overhead tank 2.

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to fully automated process for filling or re-filling overhead tank of liquid. The process of the present invention is wireless and senssorless liquid level controller (LLC) system for overhead tanks. The controller of the present invention maintaining level of liquid in overhead tank during filling by pump or motor and prevents overflow to stop the wastage of liquid. The present invention is useful for any place where liquid is to fill in upper tank from lower including residential, non- residential as well as industrial places.

There are various definitions enclosed herein, such as tank is a container to fill liquid. Area of tank is defined as per mathematical calculation for filling overhead tank. Throw pipe is defined as a pipe take liquid from lower tank to overhead tank.

Overhead tank is defined as a tank or container arranged at upper level to fill liquid from tank or container from lower level. Overhead tank can also be upper tank. Tank arranged at lower level can also be called as a lower tank.

Wireless is defined as a system not extending wire till submersible pump or motor in the lower tank or overhead tank.

Senssorless is defined as a system wherein overhead tank is without sensor element or any radio frequency transmitter inside or outside or any battery is not connected to overhead tank.

The base of the present invention is established by management of system to save water for domestic and industrial purpose. This base has taken saving of water while filling or re-filling overhead tank. Then finally come with a system useful for any liquid like water, milk, softdrink, etc. any non combustible liquid and is wireless and senssorless.

Main embodiment of present invention is to remove any or all type of senssors inside overhead liquid tanks and remove the signal caring cables stretched till overhead tank.

Another embodiment of present invention is to provide a fully automated system, wireless and senssorless liquid level controller (LLC) system for overhead tanks that is without sensor element or any radio frequency transmitter inside or outside or any battery is not connected to overhead tank. Another embodiment of present invention is to provide a device for no wireless data transmission. A device is just a unit to install at pump set control box at floor of lower level from where liquid to be pumped to upper side.

Another embodiment of present invention is that no part or item of the system is in contact to liquid of overhead tank or underground tank. Another embodiment of present invention is liquid made reach to the upper as per tank size, pipe size by which liquid flow to the upper tank, way of use and some other parameters like frequency of use of liquid. A device is supported by a program where all these information is transferred. A program which is installed in a microcontroller unit called a device. The device comprises program, phase neutral circuit input and output and three level of switches to control for filling overhead tank. The device is now complete and ready to attach near to pump set starter panel. The complete device is controlled by three level of switch as per the requirement of quantity of water or liquid. Switch at level 1 it is arranged as per the regular requirement of quantity of liquid or water of the user. Switch at level 2 off time of motor is changed and capacity of liquid or water filling is increased than level 1 in 24 hours. Switch at level 3 off time of motor is changed and capacity of liquid or water filling is increased than level 2 in 24 hours.

Another embodiment of present invention is the device comprises inbuilt rectifier (ac to dc converter) circuit. At residential level it converts 230 AC home input voltages to the 5 volt DC supply to feed further to the mcu unit which can be replaced as per the requirement of the user.

Another embodiment of present invention is that the device has only phase neutral input and output, as shown in the figure and there is no else wiring beside these input output terminals which makes this device fully compact, wireless without radio frequency and shock proof due to no sensors wires going to tank hence its shock proof for user inside water tank due to contactless technology with water.

Another embodiment of present invention is that a single piece device connected near to motor starter no other data transmitter device is been installed near overhead tank thus no additional batteries for transmission of data.

Another embodiment of present invention is that the software is written for this device to install in its mcu memory is been in machine code used as machine code for computers. Another embodiment of present invention is that the process is tuned inside this device as imaginary timing intervals are programmed as per tank parameters. Relay attached to mcu switches on and off the motor as per timing intervals to feed the desired amount of liquid to the tank as per our imaginary calculations and thus this imaginary system becomes reality of the requirement.

Another embodiment of present invention is that the imaginary data calculations are been installed inside device in the form of machine code used for mcu unit.

DETAILED DESCRIPTION OF PROCESS

Device is planned and programmed based on the size of the overhead tank i.e. exact capacity of liquid storage. For example 1000 liter, 2000 liter, 5000 liter etc. Based on this, calculation of liquid content of overhead tank is divided in equal imaginary parts for programming. The equal parts can be two/four/eight/sixteen or as per the requirement of user. More specifically, divided based on height or area of the tank.

In already set-up tank, which may not be required in new set-up tank, in second step there is to attach one pipe piece with the help of pipe coupler joint to stretch the throw pipe. Attached pipe is of same dimension to throw pipe.

Now above mentioned complete device is attached to pump set starter panel. Program in the microcontroller is prepared and set in the device unit near to starter panel of pump set at lower level tank that can control the time differences and limit of motor pump starter to manage filing of liquid in the upper tank. Control on motor pump starter by time differences is set in program how frequently and at what time difference the motor pump has to start and off. This set up is based on the equal part of height or area of the tank. Once the last part of height or area of tank is filled and the motor gets off the liquid is sucked through throw pipe itself till it’s open part inside the liquid but will not over flow. When the suction start the motor of pump of lower tank starts working in reverse direction and hence may need less service to the motor set in lower tank. Unique feature to use microcontroller in this invention is that the data can be changed as per size of water tank. In this microcontroller can delete the previous program and can reinstall new program for new tank size so if tank size and flow rate of motor is different change in program as per user specifications so every customer can get program as per there size of overhead tank which makes this device personalized product.

Using the combination of device, program and system upper tank can be filled once or twice a day or multiple times as per requirements in 24 hours.

When liquid in lower tank goes below the level where it is not practically good to make the motor dry run for a long time without liquid in lower tank at that time also present invention of sensorless system provides safety to motor of lower tank against burning it out.

BEST MODE OF CARRYING OUT THE INVENTION EXAMPLES

The present invention is explained in more detail with reference to the following examples. These examples are provided by way of illustration only and should not be construed as limit to the scope of the claims in any manner.

EXAMPLE 1

One tank overhead is of 1000 liters, total time for refilling this overhead tank is arranged 10 minutes. Tank is divided in four imaginary part based on heights. So, each part is of 250 liters and requires 2.5 minutes for filling of liquid. So program of the microcontroller of the device is set in relation of tank parts verses 24 hours. Here four parts of tank verses 4 quarters of the day. Based on these, 6 hours is off time and 2.5 minutes on time for motor pump. So that at the interval of every 6 hours motor will start for 2.5 minutes which will fill 1000 liters (250*4=1000 liters) in 24 hours or one day.

If liquid requirement increases, off time of motor pump can be reduced by level switch, liquid filling capacity in 24 hours will increase. If off time of motor pump is decreased to 3 hours 250 liters of liquid will go to overhead tank at the interval of every 3 hours which will fill 2000 liters of water or liquid (24/3=8 which is further 8*250) in every 24 hours to 1000 liters tank.

When water or liquid is not used of 4th part of tank and motor pump is off water or liquid of that upper part is sucked and make the upper part empty for refilling after interval and time setting when motor pump gets on. By this process of filling and using this device overhead tank never overflows.

In the above example overhead tank is filled multiple times in a day. To fill overhead tank only once in a day is described in example 2 for 1000 liters.

EXAMPLE 2

If motor takes 10 minutes for refill the tank full of 1000 liters of liquid. Here to make motor on for 2.5 min in first round and the motor gets off for suction time for about 2.5 to 5 min then again motor gets on for 2.5 min and again off for suction time once set us as above this on/off sequence will goes for 4 times of 2.5 minutes other than suction time. e.g. 2.5+5+2.5+5+2.5+5+2.5=25 minutes fill up 1000 liters, once in a day or 24 hours. Now that motor will start after 23.5 hours means 23 hours and 30 minutes.

EXAMPLE 3

As per calculation of example 2 if user wants 2000 liters of liquid in 24 hours, at every 12 hours motor will start its operation of 25 minutes sequence for 1000 liters. It means 24/2=12 hour off time and 25 minutes refill sequence will work for two times in a day or 24 hours for getting 2000 liters of liquid.

By this type of programming increase off time of motor for a long period and gets same amount of liquid even though motor works only once or twice a day as per our need of volume of liquid of user.

It should be understood that various changes and modifications to the presently preferred embodiments and examples described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the present subject matter and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the appended claims.