Conventionally in our domesticrefrigerators, water bottle have to be filled again and again manually. So inorder to design a system which include the auto-fill feature. The currentdesign and manufacturing in the home refrigerator is to embrace newtechnologies to proceed towards automation. On the demands bottles in therefrigerator have to be filled automatically.This is the main objective behindthis project. is that, to fill the bottles in the refrigerator automaticallywithout any human interference and without affecting other function of the homerefrigerator.
It consists of advance,high speed, atmega328 controller which is heart of this project. Each and everydevices and sensors are connected to controller, it generate the outputaccording to the input. By connecting it to the wi-fi based ESP8266 module, wecan access information related to fridge from each and every corner of theworld. The low power ultrasonic sensors are used to detect the water level ofthe bottle & the level of the water in the storage tank and signals aresent to the microcontroller accordingly the dc solenoid valve gets open and closeto start the flow of water Also give the notification of the status of thebottle on the LCD display and on the mobile. This circuit is very cost effective, compact to adjustbetween the door of the refrigerator and reliable also, that means there is noany effect of the temperature and other parameters of the refrigerator on thecircuit. 1.2OBJECTIVETo overcome the problems mentioned in the previousresearch, 1.
To fill the water bottle automatically.2. Reduce the human interference.3. Processing speed is increased.
4.To get the status of bottle in the form of notification. II.LITERATURE REVIEW The conventional bottle filling systemincludes activating an auto-fill feature of the refrigerator appliance andreceiving a signal from a sensor of the refrigerator appliance. The method alsoincludes displaying a message on a display of the refrigerator or appliance ifthe sensor does not detect the container within the dispenser recess. Themessage can provide a user with feedback regarding the auto-fill feature andassist the user with properly operating the auto-fill feature 2.
Waterdispenser for refrigerator freezers is directed to a refrigerator freezer thathas a dispenser housing mounted on a door of the refrigerator. A waterdispenser mounted on a door of a refrigerator freezer that is provided with aspigot that is movable between inner and outer positions. When the spigot is inthe inner dispensing position water into a container positioned outside thedispensing cavity. The dispenser housing can a movable tray in the bottom ofthe dispensing cavity 3. IIISYSTEMOVERVIEW This block diagram includes two ultrasonic sensors, wifi module, i.
e. ESP8266, LCD Display, humidity sensor, Solenoid valve, power supply section and ATMEGA 328. Fig. 1 System block diagram It comprises of ATMEGA -328 advanced microcontroller with advanced RISC processor. It can detect the level of water using ultrasonic sensor. It provides the automatic temperature/humidity detection using DHT11 sensor. Bottle filler become more efficient by making it IOT based system with the use of ESP8266.
To switch the flow of water, the 12V DC-solenoid valve is used. Get on and off by sensing the water levels of water by Ultrasonic Sensors. Get updated status of system on the LM016L-LCD Display. IVWORKING AREADETAILS 4.1 HARDWARE The project is based on embedded system. An embeddedsystem is a computer system with a dedicated function within a large mechanicalor electrical system, often with a real-time computing constraints. 4.1.
1ATMEGA 328 Thehigh-performance Microchip pico-Power 8-bit AVR RISC-based microcontrollercombines 32KB ISP flash memory with read-while-write capabilities, 1024BEEPROM, 2KB SRAM, 23 general purpose I/O lines, 32 general purpose workingregisters, three flexible timer/counters with compare modes, internal and externalinterrupts, serial programmable USART, a byte-oriented 2-wire serial interface,SPI serial port, a 6-channel 10-bit A/D converter (8-channels in TQFP andQFN/MLF packages), programmable watchdog timer with internal oscillator, andfive software selectable power saving modes. The device operates between1.8-5.5 volts.
4.1.2 Ultrasonic SensorsAn Ultrasonic sensor is adevice that can measure the distance to an object by using sound waves. Itmeasures distance by sending out a sound wave at a specific frequency andlistening for that sound wave to bounce back.
By recording the elapsed timebetween the sound wave being generated and the sound wave bouncing back, it ispossible to calculate the distance between the sonar sensor and the object. 4.1.3 ESP8266-WiFi ModuleEsp8266 is a highlyintegrated chip designed for the need of new connected world. It offers a selfcontained Wi-Fi networking ESP8266 has powerful on-board processing and storagecapabilities that allow it to be integrated with sensors and applicationsspecific device.4.1.4 Temp/humidity(DHT11) SensorsThe DHT11 is a basic, ultralow-cost digital temperature and humidity sensor.
It uses a capacitive humiditysensor and a thermistor to measure the surrounding air, and spits out a digitalsignal on the data pin (no analog input pins needed). Its fairly simple to use,but requires careful timing to grab data. The only real downside of this sensoris you can only get new data from it once every 2 seconds, so when using ourlibrary, sensor readings can be up to 2 seconds old.4.1.
5 LCD DisplayThe LM016L LCD displaysalphanumeric, characters, and symbols. It can be configured to drive thedot-matrix liquid crystal display under the control of 4 to 8bitmicrocontroller Also the wide range ofinstruction function. 4.2 Softwaredescription4.2.
1Proteus The proteus Design Suite is a proprietary software tool use primarily for electronic design automation. The software is used mainly by electronic design engineers and electronic technicians to create electronic schematics and electronic prints for manufacturing printed circuits boards. 4.
2.2Blynk android app This app is used for IOS and android to connect Arduino, Raspberry pi microcontrollers and similar hardware. It is an internet of thing platform with a drag-n-drop mobile application builder that allows to visualize sensors.V.APPLICATION & FUTURE SCENARIO5.1APPLICATION Water management at domestic application. Water cooler in public sector.
5.2FUTURE SCENARIO In the future, home appliances will be as smart as your phone. There is growing focus on smart fridges by using some of the newest and most innovative fridge technology, which could be coming to a kitchen near to us soon. By adding cameras inside will snap photos of the shelves and send them to your phone upon request whenever you’re out V.CONCLUSIONThis project can providea safe, secure and efficient way of domestic system. By using “Automatic bottlefiller in home refrigerator”, bottles gets automatically filled without anyhuman interference.
And user get notification on their mobile. This systemprovide reliable way of communication