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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
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Get data from observabale firestoredocument

I have declared below variable userDetails$: AngularFirestoreDocument; and below in service constructor this.userDetails$ = this.firestore.collection('users').doc('key'); How can I get actual data from userdetails$? Thanks
Md. Parvez Alam
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Create a near real time DWH with Pentaho Community edition

I had been exploring best possible ETL tools for extracting data from Oracle and loading it to SQL Server.(initial load approximate 200GB data/20-25 oracle tables) We already have SSIS licence but we had been exploring better options. We have to…
Doodle
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signal disaggregation in real time

i have a streamed power data in real time coming from my electric meter, and when i see the load with my eyes i can tell which kind of appliance is on. Currently i'm using a sliding window of ten points and calculating the standard deviation to…
ouss rom
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Flutter/Dart and Firebase, How to get data in list not in realdatetime

I am creating a Flutter app that allows a list of products of a store. To practice, I have base myself in flutter firebase example: I have managed to show a list with products stored in firebase, but my problem is that when a user adds a product,…
Jesus Garcia C
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Add textview to show the temperature parameter is in (abnormal, normal) and show notification to app user (firebase)

left shown firebase database, right shows the data retrieve from firebase in android studio(want to implement the textView which can shown (abnormal,normal) condition when exceed 30 Celcius) I am currently using firebase database to retrieve real…
Zack Choon
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Vue - real-time fetching of data from REST API

So, I have an input for the user to enter his username. The username is bound to the vue instance via v-model. I made this function in my controller to check if a username is unique or not (tested and it works): /** * @description * GET…
Bargain23
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Pyqt Graph Update with Callback

I am interested in real time graph. My aim is to update graph with another definition callback. I tried to debug but I don't see anythink after exec_() command. I tried to call update insteaded of Qtimer. from pyqtgraph.Qt import QtGui,…
Sefa Yerli
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Hightcharts line graph real-time data with no interval?

There are plenty of examples out there that shows how to render the chart in real-time, but they all use interval with 1 second. The issue is, I'm getting data less than milliseconds, in fact, less than microseconds. Is there any possibility to get…
user7947407
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mysql database event (like insert update delete) tracking for all table using node.js

I am new in node.js. I was just trying to build a module to track a record for all MySQL database activity with details using node.js. as I want like someone insert/update/delete in MySQL db then data will show in our node console. example- database…
Sumit Sharma
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PHP websocket documentation

I love programming using PHP. Recently I've wondered wether to spend more time learning node.js or not. Then I stumbled across PHP websocket. I saw an example making a live chat in websocket, where messages was sent in live time. However, I can't…
R. Hansen
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streaming data through mqtt to aws IoT with acknowledgement mechanism

I am trying to send chunks of a data by using MQTT to aws IoT and by rule engine, the data will be streamed to a web app in real time (or near to real time )manner. I am trying to find a way by which I can get some kind of acknowledgement. the role…
Gaurav Shukla
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Cross platform real-time-data

I am working on designing a new platform for a certain type of application. These applications will mainly exists on both iOS and Android devices. One of the main requirements in these applications is that is syncs real time data and is secure. My…
Paul Peelen
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Parsing new data in continuously updating text file

I want to analyse a temp file (it has the .txt extension) in real time. Temp file has format: 6000 -64.367700E+0 19.035500E-3 8000 -64.367700E+0 18.989700E-3 However after importing & printing it is not a matrix as I hoped, but actually…
mattjd
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Creating a Python window that dynamically updates with values read by RPi?

Novice when it comes to python and I need help creating a basic window that prints and updates the variables I have changing based on the readings the RPi collects. The window will display ON or OFF based on whether the voltages are >1.0 or <1.0. So…
jasamples
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Setting custom levels of atomicity on transactions and event driven / streaming real time data.

I am a C# developer and have a lot of experience with C# and SQL, but have an interest in SingalR, and real time data and JSON store/NOSQL and how it is being used. I would like to build an application to highlight text as it is read, when a user…
user802599
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