AWARE: Activity Recognition
Aware Activity Recognition (com.awareframework.ios.sensor.activityrecognition) is a plugin for AWARE Framework which is one of an open-source context-aware instrument. This plugin allows us to manage motion activity data (such as running, walking, and automotive) that is provided by iOS CMMotionActivityManager.
Requirements
iOS 10 or later
Installation
com.aware.ios.sensor.activityrecognition is available through CocoaPods.
- To install it, simply add the following line to your Podfile:
pod 'com.aware.ios.sensor.activityrecognition'
- com_aware_ios_sensor_activityrecognition library into your source code.
import com_aware_ios_sensor_activityrecognition
- Add a description of
NSMotionUsageDescription
into Info.plist
Public functions
ActivityRecognitionSensor
init(config:ActivityRecognitionSensor.Config?)
: Initializes the activity recognition sensor with the optional configuration.start()
: Starts the activity recognition sensor with the optional configuration.stop()
: Stops the service.
ActivityRecognitionSensor.Config
Class to hold the configuration of the sensor.
Fields
sensorObserver: ActivityRecognitionObserver
: Callback for live data updates.interval: Int
: Data sampling interval in minute. (default = 10)enabled: Boolean
Sensor is enabled or not. (default =false
)debug: Boolean
enable/disable logging toLogcat
. (default =false
)label: String
Label for the data. (default = "")deviceId: String
Id of the device that will be associated with the events and the sensor. (default = "")dbEncryptionKey: String
Encryption key for the database. (default =null
)dbType: Engine
Which db engine to use for saving data. (default =Engine.DatabaseType.NONE
)dbPath: String
Path of the database. (default = "aware_activityrecognition")dbHost: String
Host for syncing the database. (default =null
)
Broadcasts
Fired Broadcasts
ActivityRecognitionSensor.ACTION_AWARE_ACTIVITYRECOGNITION
fired when accelerometer saved data to db after the period ends.
Received Broadcasts
ActivityRecognitionSensor.ACTION_AWARE_ACTIVITYRECOGNITION_START
: received broadcast to start the sensor.ActivityRecognitionSensor.ACTION_AWARE_ACTIVITYRECOGNITION_STOP
: received broadcast to stop the sensor.ActivityRecognitionSensor.ACTION_AWARE_ACTIVITYRECOGNITION_SYNC
: received broadcast to send sync attempt to the host.ActivityRecognitionSensor.ACTION_AWARE_ACTIVITYRECOGNITION_SET_LABEL
: received broadcast to set the data label. Label is expected in theActivityRecognitionSensor.EXTRA_LABEL
field of the intent extras.
Data Representations
Activity Recognition Data
Contains the raw sensor data.
Field | Type | Description |
---|---|---|
activities | String | The detected activities' name |
confidence | Int | The confidence that the motion data is accurate. (0=low, 1=medium, 2=high) |
stationary | Bool | A Boolean indicating whether the device is stationary. |
walking | String | A Boolean indicating whether the device is on a walking person. |
running | String | A Boolean indicating whether the device is on a running person. |
automotive | String | A Boolean indicating whether the device is in an automobile. |
cycling | String | A Boolean indicating whether the device is in a bicycle. |
unknown | String | A Boolean indicating whether the type of motion is unknown. |
label | String | Customizable label. Useful for data calibration or traceability |
deviceId | String | AWARE device UUID |
label | String | Customizable label. Useful for data calibration or traceability |
timestamp | Int64 | Unixtime milliseconds since 1970 |
timezone | Int | Timezone of the device |
os | String | Operating system of the device (ex. ios) |
Example usage
let activitySensor = ActivityRecognitionSensor.init(ActivityRecognitionSensor.Config().apply{config in
config.debug = true
config.interval = 15
config.dbType = .REALM
config.sensorObserver = Observer()
})
activitySensor.start()
class Observer:ActivityRecognitionObserver {
func onActivityChanged(data: Array<ActivityRecognitionData>) {
// Your code here ..
}
}
Author
Yuuki Nishiyama, [email protected]
Related Links
License
Copyright (c) 2021 AWARE Mobile Context Instrumentation Middleware/Framework (http://www.awareframework.com)
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.