https://github.com/kegustafsson/signalk-data-connector

Signal K server & client solutions for sending deltas over encrypted and compressed UDP channel
https://github.com/kegustafsson/signalk-data-connector

Last synced: 22 days ago
JSON representation

Signal K server & client solutions for sending deltas over encrypted and compressed UDP channel

• Host: GitHub
• URL: https://github.com/kegustafsson/signalk-data-connector
• Owner: KEGustafsson
• Created: 2022-10-31T14:10:53.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2024-02-25T10:12:35.000Z (11 months ago)
• Last Synced: 2024-10-30T18:09:09.516Z (2 months ago)
• Language: JavaScript
• Homepage:
• Size: 171 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# signalk-data-connector

Signal K server and client solutions for sending deltas over encrypted and compressed UDP channel.

Server configuration

- Server tick box selected

- UDP port

- Secure key (32 characters)

Client configuration

- Server tick box unselected

- UDP port (server UDP port)

- Secure key (32 characters)

- Destination UDP address (server address)

- Connectivity, address for connectivity test, e.g web server

- Connectivity, port for connectivity test, e.g. web server port

- Connectivity, testing interval time in minutes

## Data rate comparison between Encrypted and Compressed UDP data transfer to WebSocket

![datarate](Doc/Datarate.png)

- Test data setup: ~30-40 deltas/sec, 120 paths

- 1st section: UDP 1000ms -> 30-40 deltas/pkg, 2nd section: UDP 100ms -> 3-4 deltas/pkg, 3rd section: WebSocket -> 1 delta/pkg

Note: Higher the delta amount per pre-defined collection timeslot, the better the compression from Brottli used with UDP transfer.

## Operations

Client:

- client Signal K deltas are collected over pre-defined timeslot (e.g. 100ms)

- collected JSON data is compressed with Brottli

- compressed package is encrypted with AES-256

- encrypted compressed package is once more time compressed with Brottli

- package is sent over UDP to server

Server:

- package is received in server

- Brottli decompression

- decryption

- Brottli decompression

- deltas to Signal K sever