传感器数据采集

Collect sensor data from your device

WithMATLAB^®Mobile™orMATLAB Online™, you can collect sensor and camera data from your iOS device and log the data in MATLAB. Use MATLAB to process this data in various ways, including creating plots, or, for camera data, process the images.

You can collect data from these sensors:

Acceleration
Angular velocity
Magnetic field
Orientation
Position

You can also access the camera and acquire images on your iOS mobile device fromMATLAB MobileorMATLAB Online. You can set camera properties including resolution, autofocus, and flash.

Functions

`mobiledev`	Create`mobiledev`object to acquire data from iOS sensors
`mobiledevlist`	List of mobile devices with accessible sensor data
`disp`	Display properties of`mobiledev`object
`accellog`	Return logged acceleration data from iOS sensor
`angvellog`	Return logged angular velocity data from iOS sensor
`magfieldlog`	Return logged magnetic field data from iOS sensor
`orientlog`	Return logged orientation data from iOS sensor
`poslog`	Return logged position data from iOS sensor
`discardlogs`	Discard all logged data from iOS sensors
`camera`	Connection to camera on iOS device
`snapshot`	Acquire single image frame from iOS device camera

Topics

Get Started with Sensors

传感器数据采集with MATLAB Mobile or MATLAB Online
Stream sensor data to MATLAB running in the MathWorks^®Cloud or store data locally.
Sensor Data Streaming Demo
A simple walk-through that demonstrates controlling sensors and acquiring data.
Use Logged Sensor Data Example
This example shows how to plot orientation data using logged sensor data.

Log Sensor Data Locally

Log Sensor Data Locally
Capture sensor data to a file on your device.

Stream Sensor Data toMATLABon the Cloud

Stream Sensor Data with Sensor Controls
Send sensor data to MATLAB running on MathWorks Cloud usingMATLAB Mobilesensor controls.
Stream Sensor Data with mobiledev.logging Property
Stream sensor data to MATLAB running on the MathWorks Cloud using themobiledev.loggingproperty.

Apple iOSCamera Image Acquisition

Acquire Images from iOS Camera
This example shows how to connect to your iOS mobile device camera and acquire images from it.
Classify Images from iOS Camera Using Pretrained Network
This example shows how to use deep learning to classify images acquired by your iOS mobile device camera.

Featured Examples

Acquire and Plot Angular Velocity and Orientation Data from Your Mobile Device

Android™上的情节来自多个传感器的数据iOS mobile device together in one timeline. Measurements of angular velocity and orientation will be collected from the device and plotted over absolute time. This will allow correlations between data from two sensors to be visualized based on the actual time of measurement.

Open Live Script

Counting Steps by Capturing Acceleration Data from Your Mobile Device

Collect acceleration data from an Android™ or iOS mobile device and use it to count the number of steps taken.

Open Live Script

Logging Accelerometer Data

Manipulate and visualize data coming from a smartphone or tablet accelerometer.

Open Live Script

Acquire GPS Data from Your Mobile Device and Plot Your Location and Speed on a Map

Collect position data from an Android™ or iOS mobile device and display it on a map. Latitude and longitude coordinates are used to mark the device's route. Speed information is used to add color to the route. The final result is a visual representation of location and speed for the device's journey.

Open Live Script