WiSea| Internet on the Ocean

Team Updates

formatshort
clear
clc
%Dati Iniziali
D=15*10^3; %m
c=299792458; %m/s
k=1.38064*10^-23; %J/K
T0=290; %K
%%
fc=2.4*10^9; %WiFi
lambda=c/fc; %m
%PATH PARAMETERS AND LOSSES
FSL_lin=(4*pi*D/lambda)^2;
FSL_dB=pow2db(FSL_lin); %dB
Loss_pol_dB=0; %dB
Loss_pol_lin=db2pow(Loss_pol_dB);
Loss_point_dB=0.5;
Loss_point_lin=db2pow(Loss_point_dB);
%vapor d'acqua O OSSIGENO MOLECOLARE
ro=7.5; %g/m^3
h=D*10^-3; %Km
fc_G=fc*10^-9;
gammaW=(0.067+(3/((fc_G-2.23)^2+7.3))+(9/((fc_G-183.3)^2+6))+(4.3/((fc_G-323.8)^2+10)))*fc_G^2*ro*10^-4; %dB/km
gammaO=(7.19*10^-3+(6.09/(fc_G^2-0.22))+(4.81/((fc_G-57)^2+1.5)))*fc_G^2*10^-3; %dB/km;
gamma=gammaW+gammaO;
Loss_atm_dB=h*gamma; %dB
Loss_atm_lin=db2pow(Loss_atm_dB);
Loss_fog_dB=h*0.5*10^-2;
Loss_fog_lin=db2pow(Loss_fog_dB);
Loss_rain_dB=h*10^-1;
Loss_rain_lin=db2pow(Loss_rain_dB);
%TRANSIMITTER PARAMETERS
%Pt_lin=; %mW
Pt_dBm=20; %pow2db(Pt_lin); %dBm
Pt_lin=db2pow(Pt_dBm); %mW
Gt_dB=12; %dBi
Gt_lin=db2pow(Gt_dB);
EIRP=Gt_dB+Pt_dBm; %dBm
Loss_tra_cable_dB=0; %dB
Loss_tra_cable_lin=db2pow(Loss_tra_cable_dB);
%RECEIVER PARAMETERS
Gr_dB=Gt_dB; %dBi
Gr_lin=db2pow(Gr_dB);
Loss_rec_cable_dB=0; %dB
Loss_rec_cable_lin=db2pow(Loss_rec_cable_dB);
F=1; %dBi
%TOTAL POWER SUMMARY
Pr_dBm=Pt_dBm+Gt_dB+Gr_dB-FSL_dB-Loss_pol_dB-Loss_point_dB-Loss_tra_cable_dB-Loss_rec_cable_dB-Loss_fog_dB-Loss_atm_dB-Loss_rain_dB; %dBWm
Pr_lin=db2pow(Pr_dBm); %mW
view raw LinkBudget.m hosted with ❤ by GitHub
L
Letizia Gambacorta

Wow it's working finally :)


DTN on ESP32
https://github.com/wi-sea/minidtnstack

[TEST] MQTT with DTN on Raspbery-pi
https://github.com/wi-sea/TS-IT

S
Siddharth Deore
S
Siddharth Deore

Video for the presentation has been done

aurelio93Aurelio Kaluthantrige
// sample web server node
#include"IPAddress.h"
#include"painlessMesh.h"
#ifdef ESP8266
#include"Hash.h"
#include<ESPAsyncTCP.h>
#else
#include<AsyncTCP.h>
#endif
#include<ESPAsyncWebServer.h>
#defineMESH_PREFIX"wave-fi"
#defineMESH_PASSWORD"wave-fi"
#defineMESH_PORT5555
#defineSTATION_SSID"no-way"
#defineSTATION_PASSWORD"no-way"
#defineHOSTNAME"HTTP_BRIDGE"
// Prototype
voidreceivedCallback( constuint32_t &from, const String &msg );
IPAddress getlocalIP();
painlessMesh mesh;
AsyncWebServer server(80);
IPAddress myIP(0,0,0,0);
IPAddress myAPIP(0,0,0,0);
voidsetup() {
Serial.begin(115200);
mesh.setDebugMsgTypes( ERROR | STARTUP | CONNECTION ); // set before init() so that you can see startup messages
// Channel set to 6. Make sure to use the same channel for your mesh and for you other
// network (STATION_SSID)
mesh.init( MESH_PREFIX, MESH_PASSWORD, MESH_PORT, WIFI_AP_STA, 6 );
mesh.onReceive(&receivedCallback);
mesh.stationManual(STATION_SSID, STATION_PASSWORD);
mesh.setHostname(HOSTNAME);
// Bridge node, should (in most cases) be a root node.
mesh.setRoot(true);
// This node and all other nodes should ideally know the mesh contains a root, so call this on all nodes
mesh.setContainsRoot(true);
myAPIP = IPAddress(mesh.getAPIP());
Serial.println("My AP IP is " + myAPIP.toString());
//Async webserver
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(200, "text/html", "<form>Text to Broadcast<br><input type='text' name='BROADCAST'><br><br><input type='submit' value='Submit'></form>");
if (request->hasArg("BROADCAST")){
String msg = request->arg("BROADCAST");
mesh.sendBroadcast(msg);
}
});
server.begin();
}
voidloop() {
mesh.update();
if(myIP != getlocalIP()){
myIP = getlocalIP();
Serial.println("My IP is " + myIP.toString());
}
}
voidreceivedCallback( constuint32_t &from, const String &msg ) {
Serial.printf("bridge: Received from %u msg=%s\n", from, msg.c_str());
}
IPAddress getlocalIP() {
returnIPAddress(mesh.getStationIP());
}
view raw server.ino hosted with ❤ by GitHub
S
Siddharth Deore
ADS-B Aircraft data logger node
ADS-B Aircraft data logger node
S
Siddharth Deore
#!/bin/bash
sudo apt-get update
sudo apt-get upgrade
sudo printf'blacklist dvb_usb_rtl28xxu\nblacklist rtl2832\nblacklist rtl2830'> /etc/modprobe.d/nortl.conf
sudo apt-get install git-core
sudo apt-get install git
sudo apt-get install cmake
sudo apt-get install libusb-1.0-0-dev
sudo apt-get install build-essential
git clone git://git.osmocom.org/rtl-sdr.git
cd rtl-sdr
mkdir build
cd build
cmake ../ -DINSTALL_UDEV_RULES=ON
make
sudo make install
sudo ldconfig
cd~
sudo cp ./rtl-sdr/rtl-sdr.rules /etc/udev/rules.d/
git clone git://github.com/MalcolmRobb/dump1090.git
cd dump1090
make
sudo reboot
view raw adsb-ars-install.sh hosted with ❤ by GitHub
S
Siddharth Deore

Antenna

http://global.dlink.com.sg/site_pdtpdfs/ANT24-1202...

S
Siddharth Deore

Draft of the project:

Wireless mesh network where all the nodes consists of data buoys, aptly provided with routers that interconnects them via wireless. This internet ad hoc system will represents as floating routers for the sailors/fishermens, who can connect their phone or any wireless system to them.

A software defined radio will also be provided to each router, so that real time ADSB signals from planes is provided to every fishermen, to enable their tracking

aurelio93Aurelio Kaluthantrige