Stack Overflow
Stack Overflow

Questions tagged [real-time-data]

Real-time data is information that is delivered immediately after collection. For questions regarding the real-time data feature of Excel, choose the 'RTD' tag.

Real-time data is information that is delivered immediately after collection. There is no delay in the timeliness of the information provided, save of technical limitations such as transmission delay. Areas of application are navigation, tracking or charting.

311 questions
3
votes
3 answers

Real time server Updates to the Browser

I'm searching for a framework which can provide real time updates form a server to the browser like it is used in web chats, google wave, google buzz, facebook etc. I found Rocket GWT but the last update was over a year ago... The best…
Stefan
  • 14,826
  • 17
  • 80
  • 143
3
votes
1 answer

Realtime Audio Processing with FFT

So I'm doing real time Audio processing in Python. The good news is, i found this link, which helps me collect data from my PC mic, and plot all the data in real time which is fantastic. I also found this code from other links, where i can stream…
whoknowsmerida
  • 134
  • 2
  • 10
3
votes
2 answers

TimescaleDB and PipelineDB Integration

(I was going to post this on the DBA SE, but there's no timescale tag.) I'm using TimescaleDB to store a real-time stream of about 500-1000 inserts per second, and need to pass this data to a client application as soon as it comes in. I don't…
The AI Architect
  • 1,887
  • 2
  • 17
  • 24
3
votes
1 answer

How to integrate Spark Streaming with Tensorflow?

Objective: Continuously feeding sniffed network packages into a Kafka Producer, connecting this to Spark Streaming to be able to process package data, After that, using the preprocessed data in Tensorflow or Keras. I'm processing continuous data in…
Burak
  • 53
  • 6
3
votes
0 answers

Kafka Stream vs Apache Storm?

I know how Kafka can be used as a message queue and can also be connected to Storm for real time data processing, I want to know Is there any advantage of using Kafka stream api over storm ?
Bishnu
  • 383
  • 4
  • 14
3
votes
1 answer

Server Side Events Start/Stop

I am displaying some real time data from a MySQL database using PHP and JavaScript. Everything works as expected and the data is displaying as I want. However, I would now like to implement two simple buttons to achieve the following; stop - pause…
TheOrdinaryGeek
  • 2,273
  • 5
  • 21
  • 47
3
votes
1 answer

Unable to Call Events using Zkemkeeper SDK

I am facing trouble in calling events in Zkemkeeper.dll. I have succesfully established the connection however on putting the finger on sensor no event is fired. Infact no realtime event is being triggered. Any help would be appreciated following…
Umar Raj
  • 31
  • 1
  • 3
3
votes
1 answer

MPAndroidChart - removing old data points in real time chart

I'm using MPAndroidChart to create some real time plots of accelerometer data. It seems that memory usage continuously grows the longer you leave the app running so I tried to find a way to remove old data points once they are out of view of the…
Simon
  • 9,762
  • 15
  • 62
  • 119
3
votes
1 answer

How can i make a new single json object by extracting particular fields from realtime json data using node.js

I have the following code which publishes the json data in the specified url using mqtt.The initial data is retrieved from http. var request = require('request'); var JSONStream = require('JSONStream'); var es = require('event-stream'); var mqtt =…
user3599
  • 45
  • 5
3
votes
1 answer

Real time or In memory database

Is there any difference between real-time & in-memory DB, or its just same? Also, kdb+ offers fast time series analysis on real time/ historical data; but is kdb+ a true Time-series database (like Opentsdb)?
Raúl
  • 1,542
  • 4
  • 24
  • 37
2
votes
0 answers

PyQtgraph - Plotting real-time data - Add "line labels" next to graph which move up and down in concert with real-time data (see illustration in post)

I'm plotting 2 lines on a pyqtgraph in real-time (simultaneously), and I'd like to add line labels on the right of the graph, that move up and down with the incoming real-time data, as if 'attached' to the end of the plotted line. It's a bit…
Qosa
  • 47
  • 5
2
votes
0 answers

Standalone PyQGIS: How to add new layer to map on runtime?

I can’t do setLayers(), for a layer created by QGIS processing algorithm on runtime. How to add new layers to QgsMapCanvas in standalone PyQGIS?
Tehreem Hassan
  • 36
  • 2
2
votes
3 answers

MATLAB - dynamically resize x-axis but not y-axis in plots?

I am generating a plot in real-time. I shift the x-axis by 30 seconds, every 30 seconds. This is all well and good, but my y-axis is auto-resizing itself to smaller than previously. Take a look below: This is my data before we hit the 30 seconds…
Dang Khoa
  • 5,693
  • 8
  • 51
  • 80
2
votes
0 answers

Real-time plotting for monitoring data using plotly

I'm trying to plot data that is acquire in real-time by a set of sensors disposed in a test room. We succeed doing that using matplotlib, however it will be better to use plotly, since the graphs could be exported and visualized in other…
Veronica Gnecco
  • 33
  • 3
2
votes
2 answers

Add data into 2 columns in same row with the data coming from Javascipt Websocket

I am new to JavaScript, not sure if this very basic question. I've created a Bitcoin Price update dashboard using the data fetched from the external WebSocket. I managed to get the data from the WebSocket and display it on the HTML table but i was…
US M AN
  • 31
  • 6
1
2
3
…
20 21