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Questions tagged [real-time-systems]

18 questions
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3 answers

Does operational transformation work on structured documents such as HTML if simply treated as plain text?

The FAQ of Google Wave Protocol says that [HTML] "does not have desirable properties" and that "HTML makes OT (Operational Transforms) difficult if not impossible" [1]. Why is this so? What problems arise if HTML is treated simply as plain text and…
user1332671
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5 answers

Why is Windows not considered suitable for real time systems/high performance servers?

I hope this question isn't too subjective, but why is Windows considered an unsuitable operating system for real time systems and high performance servers? Are there any technical papers or studies that gauge it's performance compared to *nix…
Collin Dauphinee
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4 answers

Why isn't every OS real-time?

I've heard nothing but good things about RTOSs--they give the programmer greater control over the scheduler so as to e.g. avoid priority inversion, their timing is more consistent, better multitasking. But all standard desktop setups use OSs that…
Matt Phillips
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2 answers

Getting Started with Neural Networks (ANN)?

I've been involved with a lot of C-Programming and RT-Linux, now I want to do some Artificial Neural Networking. BUT: How do I get started? I'm also very interested in Evolutionary Algorithms(Learning Algorithms) and Artificial Intelligence. Where…
janniks
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(Twitter) Storm's Window On Aggregation

I'm playing around with Storm, and I'm wondering where Storm specifies (if possible) the (tumbling/sliding) window size upon an aggregation. E.g. If we want to find the trending topics for the previous hour on Twitter. How do we specify that a bolt…
gronnbeck
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Can you use USB on RTLinux(Real Time Linux)?

I was wondering, can we use USB on RTLinux? Many people I ask say that you can't. But then I read some articles on robotics, where they were using RTLinux for its operation and USB cameras for the eyes. So that got me thinking, maybe there is a way…
Amit Ahire
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Program to measure small changes in reaction-time

I need some advice on writing a program that will be used as part of a psychology experiment. The program will track small changes in reaction time. The experimental subject will be asked to solve a series of very simple math problems (such as…
Alex C.
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Are there any Operating Systems that use non preemptive scheduling ? If so what type of tasks do they perform?

Can you kindly help with the real world applications of non preeemptive scheduling as there seem to be no operating systems which use this sceduling is this just for theory or are there any working operating systems which use this scheduling? If…
rikith reddy
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RTOS vs Traditional Firmware Coding

I'm fairly new to the embedded world. I have a little bit of experience on coding firmware for the ARM M0+ based freescale microprocessor. I am current working on a new project using the CML-5282 development board (M5282LITE) and it comes with…
user2951012
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Can the ANN model be suitable for different number of inputs?

Can the ANN model be suitable for different numbers of inputs when it predicts new results? The number of inputs should be fixed for the same model? Do I have to train the data every time? Do you some models that could be adaptive for varying…
Derrick
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1 answer

Simple execution sequence for real time systems drawn in Java

I need to draw some execution sequences for some real time systems scheduled using rate monotonic algorithm. The drawing has to be done using Java and it has to be very basic. Do you a very simple way to do this drawing? Simpler than…
som86
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Use Case diagrams as a requirements gathering tool for new functionality - particularly in systems that only require very little user interaction

I'm interested in persuing the idea of using Use Case Diagrams as a tool for collecting user requirements. However, it will be for new features as opposed to developing a system from scratch. Also, the system only has a small level of user…
Robben_Ford_Fan_boy
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Time Delay in Micro C OS II

I have been looking for that, I am using Micro C/OS II Real Time Operating System. I couldn't find a way to create a delay apart from writing nested loops. Any way to do create a delay?
Sarp Kaya
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RTSP Frame Timestamp - Python

System: [Stream 1] Camera Streaming RTSP to AI Module AI Module writes JSON to Database (With Timestamp) [Stream 2] Camera Streaming RTSP to Video Recorder Video Recorder is accessed for Post Analysis Scenario: I want to be able to join the JSON…
Gary Lu
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No "Enable EVL Core" in menufonfig

I was building Xenomai 4 following the tutorial, yet after downloading the linux-evl v5.15.y-evl-rebase, and running the command make menuconfig There is no Enable the EVL Core option in the General Setup menu as the tutorial suggests in the Build…
Linfeng Mu
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