IMU sensor fusion viewer "HelperOri​entationVi​ewer"

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Benjamin9119
Benjamin9119 2019-4-12
回答： yussif 2023-2-1
Hi All,
I am working my way throgh the below ahrs filter fusion example but my version of matlab (2019a with Sensor Fusion and Tracking toolbox installed) seems to be having trouble recognising the function HelperOrientationViewer. Does anyone know if I require an additional toolbox to run this viewer or why this is not working?
https://au.mathworks.com/help/supportpkg/arduinoio/examples/estimate-orientation-inertial-sensor-fusion-and-mpu-9250.html?searchHighlight=helperorientationviewer&s_tid=doc_srchtitle
Many thanks!
Ben

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采纳的回答

Honglei Chen
Honglei Chen 2019-4-15
You may have to open the example in MATLAB and click the "Open Example" button. That will copy all necessary helper functions into a local folder for you to run the example.
HTH
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Gayatri Menon
Gayatri Menon 2022-3-1
Hi,
In the top right corner in the page, there is a 'Copy command' button. Clicking this button will copy the command required to open the example in MATLAB. Paste and execute the command in MATLAB command window.
Regards
Gayatri

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更多回答（3 个）

Marco Caruso
Marco Caruso 2019-4-15
I have the same problem!
  2 个评论
Ans Hafeez
Ans Hafeez 2019-8-9
Facing same problem.
Getting another following error
Error in openExample (line 24)
metadata = findExample(id);
Gayatri Menon
Gayatri Menon 2020-1-24
Hi Ans Hafeez,
Which version of MATLAB are you using? The example is available in R2019a and above releases.
Regards
Gayatri

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ljp64
ljp64 2019-10-17
Hi there, I am having the same problem with this page https://au.mathworks.com/help/supportpkg/arduinoio/ug/estimating-orientation-using-inertial-sensor-fusion-and-mpu9250.html
However, I cannot see an option to 'Open iExample' in Matlab. Am I doing something wrong?
Thank you
Laura
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Gayatri Menon
Gayatri Menon 2022-3-1
Can you check for 'Copy command' button in the top right corner of the page.
Thanks
Gayatri
Shaik Arshad Salman
Shaik Arshad Salman 2022-3-21
I followed the above procedure but I am gettign this error in command window
>>openExample('shared_fusion_arduinoio/EstimateOrientationUsingInertialSensorFusionAndMPU9250Example')
Error using matlab.internal.examples.componentExamplesDir (line 16)
Invalid argument "shared_fusion_arduinoio".
Error in findExample (line 18)
componentExamplesDir = matlab.internal.examples.componentExamplesDir(component);
Error in openExample (line 30)

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yussif
yussif 2023-2-1
a = arduino('COM5', 'Uno', 'Libraries', 'I2C');
fs = 100;
imu = mpu9250(a,'SampleRate',fs,'OutputFormat','matrix');
GyroscopeNoiseMPU9250 = 3.0462e-06;
AccelerometerNoiseMPU9250 = 0.0061;
viewer = HelperOrientationViewer('Title',{'Visualization of Orientation'})
FUSE = ahrsfilter('SampleRate',imu.SampleRate, 'GyroscopeNoise',GyroscopeNoiseMPU9250,'AccelerometerNoise',AccelerometerNoiseMPU9250);
tic;
stopTimer = 100;
magReadings = [];
accelReadings = [];
gyroReadings = [];
while(toc<stopTimer)
[accel,gyro,mag] = read(imu);
magReadings = [magReadings;mag];
accelReadings = [accelReadings;accel];
gyroReadings = [gyroReadings;gyro];
fuseReadings = FUSE(accel,gyro,mag);
for j = numel(fuseReadings)
viewer(fuseReadings(j));
end
subplot(3,2,1);
plot(accelReadings);drawnow
title('Accelerometer Readings');
subplot(3,2,2);
plot(gyroReadings);drawnow
title('GyroScope Readings');
subplot(3,1,3);
plot(magReadings);drawnow
title('Magnetometer Readings');
end
%%magx_min = min(magReadings);
%%magx_max = max(magReadings);
%%magx_correction = (magx_max+magx_min)/3;

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