Problem statement
Due to a calamity / disaster the communication towers are failed and the people in this area is frustuated and are in need.
DRCM
Our project comes into play in the above situation as follows
small modules are placed in a cetain distance in the effected region . people in this region is now visible to a open wifi named "EMERGENCY" which they can connect using any devices . now a offline webpage is pushed to users browser usinf captive portal . Now the webpage contains a form which the users are requested to fill and submit .This data is transfered through lora communication to a server situated about 10km (depends up on the lora gateway range) . now this data is uploaded to cloud (ps : server has network connectio explosure )
Disaster & communication managment
This project provides an alternative way of communication in case of a network failure . taking any disaster into consideration like Flood , Cyclone etc . anything that can disturb our normal way of Radio wave communication . our project creates a new way of communication using lora . whic uses chirp spread spectrum
So we places small modules equiped with a esp8266 and lora onto poles above 6ft separated about 1km apart if there is no lora gateway in area . if there is a gateway existing the modules can be placed 2km-5km in radius of the gateway station this depends on the range of the gateway
When a user gets into the range of the esp8266 which is a wifi module and this is configured to act a Hotspot in range of 500m radius . when a user connects to this wifi using any smart devices a portal containing a user form appears where the user is required to enter their details Name,Address,Contact when the user submits the form the contents are sent over via a lora network "this can be point2point or gateway base" The form details are now recieved to a raspberry server running rasbian(any linux os is suitable but rasbian is prefred if you are new
PS: There is no cellular network available in is the user side but the data is transfered over a long distance(10km or above) and to the server where there is a network connection
Now the a python script is made run to accept the data from lora via GPio pins and the data is sorted and uploaded to cloud . Google Firebased is used here to store the data . this is a free service provided by google firebase click here for more details finally a webpage gatheres the firebase data and sort it out in realtime to a table containing the user details i.e "name , address, contact"