Description:The following specification particularly describes the invention and the manner in which it is to be performed.
“A CONTACTLESS DEVICE TO MEASURE LIQUID AND GAS SUBSTANCE BY USING BODY SCALE LOAD CELL”

FIELD OF THE INVENTION:
The present invention herein belongs to a field of measuring liquid and gas substance in a container using contactless mode. The present invention is a device which measures the level of liquid and gas in a container which is supported by an Internet of Things.

BACKGROUND OF THE INVENTION:
It is always a challenge for the user to measure the level of gas or liquid inside a container. There are various solutions for measuring the level of these gas or liquid where the sensors are used to measure and indicate the levels. Most of the methods includes contact type measurement in which sensors are used. Traditional sensors frequently require direct contact with the chemical, which can lead to contamination and inaccuracy. The present invention overcomes the limits of traditional liquid and gas level sensors by providing a non-contact measurement approach that lowers contamination hazards.
PRIOR ART OF THE STATE:
There are several instances as well as reports available in the prior arts level measurements as follows.
US4604892A Device for the automatic contactless measurement of the volume of a layer deposited on a substrate
The disclosed apparatus and process enable the non-contact measurement of the volume of a wet, electrically resistive material layer deposited on a rigid substrate support. The deposit's length and width are known. A pneumatic gas system, with an outlet positioned above the deposit and substrate, directs a pressurized gas jet downwardly onto the deposit. The outlet for the gas jet is homothetic to the deposit's width and length. An apparatus allows for the selective movement of the deposit and its support relative to the gas system. This enables sequential direction of the gas jet onto either the deposit or the bare substrate while maintaining constant pressure. By measuring the difference in distances from the gas jet outlet to the upper surface of the deposit or to the bare substrate, the topological thickness of the deposit can be determined.

EP3710794A1 - A method and system for measuring a liquid level in a pressure vessel of a urea synthesis plant
A technique and system for gauging the liquid level within a pressurized container involve the following steps: transmitting an electromagnetic signal via a wave guide, which takes the form of an elongated solid rod with its lower end submerged in the liquid, and then capturing the signal reflected from the liquid's surface

IT202000017122A1 - Device and method of measuring a liquid level in an equipment
The invention finds a preferred application, in particular, in equipment forming part of a high pressure section of a urea production plant (urea plant), such as a urea synthesis reactor, a high pressure stripper, a carbamate separator high pressure, etc. The measurement of the level of a fluid in high pressure equipment for the production of urea is typically carried out with instruments of the nucleonic (radioactive) or radar type. The operating principle of nucleon-type instruments based on the measurement of the radiations emitted by a nuclear source and which are not absorbed by the fluid whose level is to be measured in the equipment.

Liquid level sensor using ultrasonic Lamb waves
This inventions presents a novel noninvasive method for measuring liquid levels in closed metal tanks operating under high pressure. The method utilizes ultrasonic Lamb waves propagating along the tank wall, with their characteristics substantially altered upon contact with liquid, serving as an indicator of liquid presence. Theoretical analysis demonstrates that both symmetric and antisymmetric Lamb wave modes, including fundamental and higher order modes, are sensitive to liquid presence. The optimal wave frequency is determined by the tank wall thickness and material. A prototype level sensor based on this principle has been developed, employing two pairs of wedge transducers to generate and detect Lamb waves along the tank's circumference. An operating frequency of 100 kHz is identified as optimal for tanks with wall thicknesses of 30–50 mm. Prototype sensors have been successfully deployed in oil fields in Russia's far northern region.

Ultrasonic instrumentation system for Liquefied Petroleum Gas level monitoring
A novel method for monitoring the level of Liquefied Petroleum Gas (LPG) in a 14-kilogram cylinder has been developed using a non-invasive ultrasonic instrumentation system. The system integrates ultrasonic sensors, specifically Truma LC-V1.15 modules, attached vertically outside the cylinder wall on a sensor holder within an experimental rig. These sensors emit ultrasonic signals that propagate through the cylinder wall and record the reflected signals. The reflection of the ultrasonic signal depends on the medium's impedance. The generated signals are then sent to a Pico Scope Data Acquisition System (DAQ) for data reading. The output voltage signals undergo processing by a computational data system, resulting in the determination of the LPG liquid level inside the cylinder. Additionally, an image of the liquid level within the cylinder, represented in percentage value, is constructed using java script-based programming. This image is displayed through an HTML software interface. Overall, the developed instrumentation system effectively detects the LPG level within the cylinder, offering a non-invasive and potentially safer alternative to traditional weighing scale methods.

Contactless surface acoustic wave gas sensor
The use of a contactless surface acoustic wave (SAW) device as a gas sensor is demonstrated. The inductive detection and excitation of the surface acoustic wave eliminates the need for bonding wires. To demonstrate this kind of device's applicability for sensor applications, we provide many measurements across various temperature ranges. The device was coated in polyepichlorhydrine (PECH) to detect organic solvents at normal temperature, in copper phthalocyanine (CuPc) to detect NO2, and in snO2 to detect methane in the 300°C to 450°C temperature area.

A New Contactless Cross-Correlation Velocity Measurement System for Gas–Liquid Two-Phase Flow
In this work, a new contactless cross-correlation velocity measurement system with a three-electrode architecture is created based on the principle of Contactless Conductivity Detection (CCD) and used to the contactless velocity measurement of gas–liquid two-phase flow in narrow channels. An electrode from the upstream sensor is used as the electrode for the downstream sensor in order to create a compact design and lessen the impact of relative position change and slug/bubble deformation on the velocity measurement. To guarantee the independence and constancy of the upstream and downstream sensors, a switching unit is introduced in the meantime.

Contactless flow measurement with quick and easy mounting
Nivus provides a quick and easy-to-use fastening system for its contactless flow meter systems using clamp-on sensors. This method uses sensors fastened on the outside of the pipe which measure through the pipe wall. The transit time difference method uses two sensors which are installed exactly in a certain distance to each other depending on the conduct diameter

Contactless Liquid-Level Measurement with Frequency-Modulated Millimeter Wave through Opaque Container
A brand-new contactless technique is put forth to gauge liquid level through an opaque container. The purpose of a millimeter-wave Doppler sensor is to "see"—that is, sense—through a target container and determine the liquid level by measuring the millimeter waves that are absorbed by the liquid. Due to diffraction, one of the difficulties is measuring liquid level precisely (within sub-millimeter inaccuracy) despite the millimeter wave's naturally huge beam diameter. By reflecting a specific section of the spread beam and modifying its frequency to differentiate it from the other component of the beam, a piezoelectric vibrator allows for precise measurement. A measurement system prototype is constructed and assessed.

OBJECTS OF THE INVENTION
One or more of the problems of the conventional prior art may be overcome by various embodiments of the system and methods of the present invention.
The principal object of the present invention is to measure the level of gas or liquid in a container using non – contact method.
The further object of the invention is to avoid the contamination of the liquid or gas in a container by the sensor, where a contact sensor is used for measuring the level of the gas or the liquid.
Another object of the present invention is to provide a device that is an economic alternative for a typical liquid and gas level sensors.
Another object of the invention is to develop a device which has versatile option for measuring liquid and gas in various applications including drinking water level measurement and cooking gas level measurement.
Other objects and advantages of the present disclosure will be more apparent from following description, which is not intended to limit scope of present disclosure.

SUMMARY OF THE INVENTION
Thus, according to the basic aspect of the present invention, there is provided an ‘A contactless device to measure liquid and gas substance by using body scale load cell’, comprising the following parts:
Load Cells [4a], [4b], [4c], [4d]
wherein, said load cells [4a], [4b], [4c], [4d] are with capacity of 50kg each arranged in a Wheatstone bridge configuration used to measure the weight;
Wifi Micro controller [7],
wherein, the Wifi microcontroller [7] is ESP 12S Wi-fi MCU which sends the data to the database over internet which in turn can be fetched to the mobile application,
Load cell amplifier [8]
wherein, the load cell amplifier [8] is used to amplify the data collected from the load cells [4a], [4b], [4c], [4d] and makes data easily readable by the micro-controller (7)
Battery Management System (9)
wherein, the said battery management system (9) gives the energy back-up to the entire device.
The present invention is ‘A contactless device to measure liquid and gas substance by using body scale load cell’, which is used to measure the level of liquid and gas in a container. The present invention overcomes a number of issues with currently available traditional methods to measure the level. Conventional techniques sometimes depend on costly, contact-based sensors, which can be prone to contamination and inconvenient. Contact-based and ultrasonic continuity sensors are used in the liquid measurement apparatus now in use. Furthermore, the widely used general-purpose 50 kg body scale load cells [4a], [4b], [4c], [4d] in Wheatstone bridge design is limited to body weighing devices since they are relatively accurate and reasonably priced. In place of the pricey, intricate, and contact-based sensors, the present invention uses these inexpensive, non-contact, 50 kg body scale load cells [4a], [4b], [4c], [4d] in a Wheatstone configuration. This invention offers a versatile platform for automation and level monitoring, catering to the increasing need for IoT solutions in various industries.

BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is the isometric view of the current invention showing the following components.
[1] Load Placement Area
[2] Bottom Cover
[3a], [3b], [3c], [3d] Load Cell Footing (Rubber)
[4a], [4b], [4c], [4d] Load Cells
[5] LED Status Indicator
[6] Back-up Battery
[7] Wi-fi Microcontroller,
[8] Load cell amplifier,
[9] Battery management System,

Figure 2 is the front view of the current invention showing the following components
[5] LED Status Indicator
[11] Status LED-1
[12] Status LED-2
[13] Reset Switch,
[14] Offset Switch

Figure 3 is the top view of the current invention showing the following components
[1] Load Placement Area
[5] LED Status Indicator

Figure 4 is the rear view of the current invention showing the component
[10] DC power Jack

DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING FIGURE:

The present invention is ‘A contactless device to measure liquid and gas substance by using body scale load cell’, which is used to measure the level of liquid and gas in a container. It is always a challenge in measuring the level of liquid or the gas in a closed container. The present invention is a device which measures the level of the gas or liquid in a container and indicates the same to the user through a mobile application using Internet of Things. The device is also designed to create automations like notifying the level or placing the order of gas & water with the in-app customization tools. The current invention measures weight using four generic purpose 50KG load cells [4a], [4b], [4c], [4d] arranged in a Wheatstone bridge configuration, which are then amplified by a HX711 load cell amplifier [8] which can be interpreted using the ESP 12S Wi-fi MCU [7].

The originality of current invention resides in its use of load cell technology in a Wheatstone bridge configuration, combined with IoT capabilities, to correctly assess liquid and gas levels. Its claims are based on its capacity to give precise measurements without direct touch with the substance being measured, hence lowering contamination hazards and costs associated with traditional sensors. Also, the device can be connected with the mobile app where the automations like notifications at different levels & auto order placement beyond threshold level can be customized.
APPLICATION OF THE PRESENT INVENTION:

The present invention can be used in the applications where there is a need to measure level of liquid or gas.

The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components are omitted to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

While considerable emphasis has been placed herein on the process of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

1. Keeping an eye on the levels of drinking water and gas in residences, businesses, and factories.
2. Automating ordering processes for water and gas based on current level readings
3. Cost savings, increased precision, decreased contamination concerns, and improved automation and level monitoring operations are just a few advantages of the current invention.
4. For enterprises looking for dependable and affordable liquid and gas level measurement solutions, this cutting-edge Internet of things gadget offers a flexible answer. , Claims:We claim that:
1. ‘A contactless device to measure liquid and gas substance by using body scale load cell’, comprises of:
Load placement area [1]
wherein the load to be measured is placed on it;
Bottom cover [2]
wherein the said cover, covers the load cells [4a], [4b], [4c], [4d], Wi-Fi microcontroller [7], back-up battery [6], Load cell amplifier [8] and Battery Management System (9);
Load cells footing [3]
wherein the footing is made of rubber and gives gripping to the sensor mount that comes in contact with the surface/placement area of the device;
Load Cells [4a], [4b], [4c], [4d]
wherein, said load cells [4a], [4b], [4c], [4d] are used to measure the weight;
LED Status indicator [5]
wherein the indicator shows whether the device is on/off;
Back-up battery [6]
Wherein the said back-up battery gives the power back-up to the entire system;
Wi-Fi Micro controller [7],
wherein, the Wi-Fi microcontroller [7] is used as a microcontroller to handle & control the Input/Output active peripherals and the in-built wi-fi module sends the data to the mobile application;
Load cell amplifier [8]
wherein, the load cell amplifier [8] is used to amplifies the data collected from the load cell;
Battery Management System [9]
wherein, the said battery management system [9] gives the energy back-up to the entire device;
DC power jack [10]
wherein, the DC power jack [10] is a power interface offering a plug & play option to connect the device with an external power source;
Status LED 1 [11]
wherein, the Status LED 1 [11] is an interface to notify whether the device is connected to internet or not;
Status LED 2 [12]
wherein, the Status LED 2 [12] is an interface to notify the different firmware level actions of the device like powering up, calibration & functions call;
Reset switch [13]
wherein, the Reset switch [13] resets the device whenever there is an issue with the device functionality;
Offset switch [14]
wherein, the Offset switch [14] is used to tare/offset the empty weight of the container so that the actual liquid/gas level can be measured.

2. The load cells [4a], [4b], [4c], [4d] as claimed in claim 1, wherein, said load cells [4a], [4b], [4c], [4d] are with capacity of 50kg each arranged in a Wheatstone bridge configuration to measure the weight with accuracy of +/- 20gms.

3. The Wi-Fi microcontroller [7] as claimed in claim 1, wherein the microcontroller is of is ESP 12S Wi-fi MCU type

4. The load cell amplifier [8] as claimed in claim 1, amplifies the data collected from the load cells [4a], [4b], [4c], [4d], interprets and sends information to the mobile application through the Wi-Fi micro controller [7]