Pod Middleware

Developer: Rohan Daruwala, Daniel Kouchekinia

Everything that facilitates data-transfer between the Beaglebones on the pod, or between the pod and the dashboard

Platform:

BeagleBone Black

TCP Server Telemetry Loop

The TCP Server Telemetry Loop allows for commands to be sent from the dashboard to the beaglebone. This implementation is the Beaglebone end, where data is received and parsed.

How it works:

Start the telemetry loop by calling the function:

#include "LVTCPSocket.h"
SetupLVTCPServer();

or

#include "HVTCPSocket.h"
SetupHVTCPServer();

If you need to edit the port of the receiving server, modify the value in the respective .h file

How to add commands

Add functionality by adding if statements to the .cpp file

if(!strncmp(buffer, "do something", MAX_COMMAND_SIZE)){
	// Do something
}

Change "do something" to the string command you want to receive.

You may additionally choose to send a string back to the sending client by using the following commands:

char *toSend = "Hello world!"
send(new_socket , toSend , strlen(toSend) , 0); 

UDP Data Telemetry Loop

The UDP Telemetry Loop gathers data from the various sensors connected to the Beaglebone. It then generates a packet and sends it to the dashboard server.

How it works:

Start the telemetry loop by calling the function:

#include "TelemetryLoop.h"
SetupTelemetry((char *) "IP Address", port);

Where "IP Address and "Port" are that of the dashboard server.

This feature uses d-bahr's CRCpp to generate the cyclical redundancy check.

How to add data

In order to add more data, add additional fields to the autocoder/data.xml. The auto-coder will add the fields to the data.h tree structure. So long as the data.xml on the pod and on the dashboard are identical, the fields will be automatically sent.