UEISIM Desktop is a new method to remotely control and monitor a Simulink model running on a UEISIM.

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UEISIM Desktop

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Overview
The UEISIM is a Linux based system that
runs Simulink models.
UEISIM Desktop allows remote monitoring
and parameter tuning while a model is
running.

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Remote monitoring/Parameter tuning
• External mode:
• Use Simulink itself as client to connect to the
UEISIM target.
• UEISIM Desktop:
• A client written in C#, C/C++ or LabVIEW can
display the model’s signals and parameters
without Simulink being installed.
• Signals and parameters are also accessible
via a web page.

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Extra features (UEISIM desktop only)
• Remotely start/stop simulation
• Host PC client can start or stop simulations
remotely
• Timing statistics:
• Average simulation step execution time
• Minimum step execution time
• Maximum step execution time
• Model execution time

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UEISIM
Simulation executable
LibSharedData
Client application
PC #2
Client Application
UeiSimTarget.dll
PC #1
Web browser
LibSharedData
Shared Data protocol

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Shared data protocol
• Implements a simple message based
protocol (set/get variable) using JSON or
binary data representation
• Local processes communicate over UNIX
sockets
• Remote processes communicate over
TCP/IP sockets
• Web browser communicate over Web
Sockets

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Signal Monitoring
• A model automatically publishes all “exported” signals
under the name:
• /model_name/block_name/signal_name
• To export a signal, right-click and set “Storage Class”
to “Exported Global”

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Parameter tuning
• A model also publishes all tunable parameters under
the name:
• /model_name/block_name/param_name
• For example the constant block “value” parameter is
tunable:

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Data hierarchy
• This naming convention allows a hierarchical
view of the model signals and parameters

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Shared Data Client
Shared Data client is an application that provides a
quick and easy way to monitor a model.

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Client API
UEISIM Desktop API supports C/C++, .NET (C#,
VB), LabVIEW and Javascript
The API provides the following services:
• Start/Stop Simulation
• Enumerate and read signals
• Enumerate, read and write parameters
• Reboot or shutdown UEISIM
• Read timing statistics and CPU load

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C# client API 1/4
Create a client object
UeiSimTargetClient client = new UeiSimTargetClient();
Open communication with UEISIM
client.Open("192.168.100.2");
Load and Start Model
client.LoadApp("/tmp/test_ai_rt2“, 2345);
if(client.IsAppRunning())
{
client.StopApp(); // Stop model if already running
}
client.StartApp();

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C# client API 2/4
Enumerate signals
for(int sigIdx=0; sigIdx< client.GetNumSignals(); sigIdx++)
{
string sigName = client.GetSignalName(sigIdx);
double[] sigVals = client.GetSignalValue(sigIdx,
client.GetSignalWidth(sigIdx));
Console.Write("{0} = {1}", sigName, sigVals);
}

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C# client API 3/4
Enumerate and tune parameters
for(int prmIdx=0; prmIdx=0<client.GetNumParams(); prmIdx=0 ++)
{
string prmName = client.GetParamName(prmIdx);
double[] prmVals = client.GetParamValue(prmIdx,
client.GetParamWidth(prmIdx));
Console.Write("{0} = {1}", prmName, prmVals);
// Tune parameter
prmVals[0] = 102.90;
client.SetParamValue(prmIdx, prmVals);
}

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C# client API 4/4
Display timing stats
Console.WriteLine("Model ran for {0} secs", client.GetExecTime());
Console.WriteLine("Min TET = {0}", client.GetMinTET());
Console.WriteLine("Max TET = {0}", client.GetMaxTET());
Console.WriteLine("Avg TET = {0}", client.GetAvgTET());
Close communication channel
client.Close();

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LabVIEW API 1/4
Open communication and start application

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LabVIEW API 2/4
Enumerate and monitor signals values

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LabVIEW API 3/4
Enumerate and tune parameters

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LabVIEW API 4/4
Display timing stats

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LabVIEW client example

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HTML5 client
• UEISIM Desktop web interface is built on top
of web sockets
• Web sockets are part of HTML5. Supported in
the following browsers:
Google Chrome
Firefox
Safari for MacOS and iOS
Android web browser
Internet Explorer 10

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HTML5 client – default page

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HTML5 client – custom page