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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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How DolphinDB clears historical data from distributed tables?

I am using DolphinDB to store real-time metrics generated by factory device. There are 1000 devices, each device generates 3000 metrics per second. I've build a distributed database in DolphinDB to store and analyze these data: db1 = database (,…
LIN.L
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What will be the best method for updating webpage in real time basis without using node.js?

I figured out below two methods for updating the webpage on a real-time basis. 1) By using Notification. 2) By calling ajax at some interval. Notification: You can send real-time notifications to a browser with the help of notification tools like…
Nishant Singh
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how to monitor live data on ARM controller using ubuntu while debugging

i have stm32 controller & debugging it via linux terminal. I have tried to read the real time date from ARM controller while debugging in ubuntu by arm-none-eabi-gdb but unfortunately i can only monitor the variables data if applied the break points…
suresh s2k
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How to receive any changes in MySQL database in real time from client code in a timed function?

I have a database with a log record table which looks like this: +-----------+------------------------+--------+ | Timestamp | Symbol_name | Status | +-----------+------------------------+--------+ | 1 | Group2 | …
Vikas M
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Firebase Authentication - Dealing with long UID strings (28 chars) that bump up real-time DB billing

I am building a mobile multiplayer game using unity and firebase. I wanted to reduce my real-time database bills. My app is very social driven: Friends Friend Requests Gifts Game Invites etc.. As you know, the firebase way of identifying different…
Tal Rumer
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Unable to upload an object to Firebase realtime database

I'm trying to upload this object to Firebase realtime database: public class DecorationRequest { private String mName; private String mRooms; private String mBudget; private String mArea; private String mDescription; …
Tino Terävä
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How to listen to multiple children in Firebase?

I am currently trying to develop an app with which users can track their location. It is important that other users must not see the location of others not being in the group. In order to listen to location updates from all users in the group I was…
Marvin-wtt
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VueJS - Push data into array in V-Bind

I am trying to retrieve data from a list of devices and depending on the number of device, it will graph the data on the chart. The data will also be updated every one second, in other words, I would like to have the chart keep graphing the data in…
AlexT
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Strategy to Save messages from live chat into MySQL or Dynmodb

I am writing a Live chat application, which will be used by many users. I am thinking about using ElasticCache Redis from Amazon to manage our PUB/SUB and Latest messages cache. The only problem I see is about saving these Live messages to a…
user1105983
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Non Real Time Serial Data Plotter

I'm working on a motion sensor project, and I would like to acquire acceleration data from a sensor (MPU6050) attached to Arduino. So I get the 3 values of acceleration ax, ay and az and I send them in the USB serial link. Now I can get the ax, ay,…
noureddine-as
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streaming while processing

I'm working on an application where I receive a large amount of data via the USB from 4 sensors and displaying them in Matlab. The streaming works perfectly , however, I need to do some processing on the data as it's streaming. I use segments of the…
Isra
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real time data acquisition/processing using Python

I am attempting to write a code that will acquire information from a buffer (returned as a multi-dimentional array), extract certain elements from said array. So here's what I have: Drest = np.array([]) #Set up array for data to be…
Richard Summers
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Realtime update in all UIVIewController

I have situation like this. Suppose VC A has some list of event which has like functionality When user click on any event they can redirect to it's details page where there is name of event organizer On click on of event organizer load it all event…
Chirag Shah
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Read set text from (game) screenshot in real time

I'm working on a project to read set text phrases from a running game's on-screen console (via a periodic screenshot) in real time. Example on-screen Minecraft console screenshot: Would this be best done with an OCR library? Or can I out perform…
quantum
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C# real time graphing in a windows form application

I am attempting to graph real time temperatures that are read using Modbus commands. Currently, I am able to read the temperature and graph it. However, once it draws the first point it does not continuously update the graph and GUI. Should I be…
Joanne Pokrzywa
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