ABSTRACT :
Now-a-days maximum peoples are ordering food by using online services and this online services are dependent on single centralized server and if this server crashed due to overload request or if hacker hack this server then online food services will stop working. To overcome from this problem we are migrating food deliver application to Blockchain server which will maintain data in decentralized (multiple nodes/servers will maintain data) manner and Blockchain store each data as block/transaction and associate each transaction with unique hash code and this hash code will get verified upon storing new block and this block cannot be modified and due to hash code verification no hackers can attack the server and if one Blockchain server down then application will use services from other working nodes, so by migrating application to Blockchain server we can get services from any working node and can prevent servers from getting hacked.
EXISTING SYSTEM :
A.Detection of Gallic acid using sensor :
As stated in Gallic acid is found in black rice, blue berry, banana leaves has anti-bacterial, anti-viral, anticancer and cardiovascular protective properties. There are different methods to detect Gallic Acid as resonance light scattering, fluorescence and electrochemical methods. In this method, NiAl 2 O 4 was synthesized by the sol-gel method. The black rice and blueberry were used as samples for this experiment. Then those samples (500 mg of crushed powder) were dispersed in DI water and ethanol and sonicated for 2 hours in order to conduct real-sample analysis by CV.
The composite materials were subjected to various characterization and analytical techniques. The average nano particle size was calculated and presented. They ended saying, NiAl 2 O 4 – GCE excellently detected Gallic acid satisfying conditions of linear range, detection limits, limit of quantitation and sensitivity.
PROPOSED SYSTEM :
Their proposed system works in different stages like odour handling, odour detection and pattern recognition. Different kinds of sensors are used in this system like gas sensors, humidity sensors and temperature sensors. There are five gas sensors, each one of a temperature and humidity sensor is used. As the whole process is automatic this system. can be used by anyone and it is also cost effective.
SYSTEM REQUIREMENTS
SOFTWARE REQUIREMENTS:
• Programming Language : Python
• Font End Technologies : TKInter/Web(HTML,CSS,JS)
• IDE : Jupyter/Spyder/VS Code
• Operating System : Windows 08/10
HARDWARE REQUIREMENTS:
Processor : Core I3
RAM Capacity : 2 GB
Hard Disk : 250 GB
Monitor : 15″ Color
Mouse : 2 or 3 Button Mouse
Key Board : Windows 08/10
