Automatic Liquid Dispenser Vending Machine

A vending machine is a machine mainly used for business, which dispenses certain products to the customers when they insert currency or coin inside the machine. Automated vending machines are in demand these days that make numerous tasks and activities easier and efficient. Such machines need minimal human intervention to do this job. In this project we demonstrate a Coin based Soap dispenser vending machine. Coin based soap dispenser is a liquid soap vending machine, basically the system consists of a coin acceptor module, a load cell assembly which is used to measure the weight of the container, whenever we insert a coin, the counter on LCD increases by 1 and depending upon how much quantity is to be dispensed we press the corresponding button (i.e. the 500ml and 1 litre) after which the water starts dispensing , the weight of the water is continuously monitored at once it is equal to weight corresponding liters then the pumps are stopped and the process is complete.  

  • Hardware Specifications
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  • Coin module
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  • Load cell assembly
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  • LCD display
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  • Pump
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  • Crystal Oscillator
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  • Resistors
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  • Capacitors
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  • Transistors
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  • Cables and Connectors
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  • Diodes
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  • PCB and Breadboards
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  • LED
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  • Transformer/Adapter
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  • Push Buttons
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  • Switch
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  • IC
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  • IC Sockets

PLC based Automatic Dam Shutter Control System

Dam is a barrier that stops or restricts the flow of water or underground streams. Dam is also used to collect water or for storage of water which can be evenly distributed among different locations. The farmers are dependent on seasonal rain and after that bore-well water for their crops. The dams have tremendous potential for economic upliftment and growth. They can help in checking floods and famines, generate electricity and reduce water and power shortage, provide irrigation water to lower areas, provide drinking water in remote areas. Dams are typically constructed with a drain or similar mechanism to control water levels in an impoundment for normal maintenance or emergency purposes. A disaster is any event that causes great harm or damage, serious or sudden misfortune. Dam failures clearly fit this definition. This dam shutter open/close system using plc will overcome such circumstances, it will manage the water level of the water reservoir automatically. At two different level, water is sensed according to which the gate is closed or open. That is when the water level goes above the threshold mark point level, door opens and it raises buzzer and the solenoid valve opens. When the water level goes down the door shuts automatically.  

  • Components
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  • PLC
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  • Level Sensors
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  • Push buttons
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  • Led Lamps
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  • Relay
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  • DC motor

Block Diagram

PLC Based Smart Elevator Control System Project

The main requirement of all multi storage buildings are elevators. Elevators ease the work humans and keep him/her in the comfortable zone. Elevators are used in almost all the multi storage buildings in metropolitan cities. Elevators are nothing but the vertical transportation device which is used to transfer goods and passengers. Elevators use limit switch for floor indication. High rise buildings and malls constructions are widely increasing and elevator is an integral part of transportation medium in such infrastructures. By implementing plc-based smart elevator projects we can reduce the human efforts, accidents caused due to breakage of rope, efficiency and speed of elevator can also be improved. Even time can be consumed by using such plc-based elevator controller system. PLC controlled systems plays a vital role in stability and steady state of lift. It guides the lift in what order to stop at Floors, when to close and open the door. This plc based smart elevator control system project consists of three sensors, on each floor these three sensors senses the load in elevator. On pressing the start button twice, the elevator moves till the second floor. And the press stop button is used to stop the elevator. As the elevator passes through the respective floors, the colour of the lamp changes. Respective floor will be given respective colour lamp as the elevator reaches to the floor, the respective colour light lamp will glow.  

  • Components
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  • PLC
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  • Proximity Sensors
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  • Push buttons
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  • Led Lamps
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  • Relay
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  • DC motor

Block Diagram