heinrichhartmann / mobilesensing

Android App for Sensor data collection

Sensor Mining Framework

Repository: https://github.com/HeinrichHartmann/MobileSensing

This software is based on SDCFramework, sourceforge.

mobilesensing's Issues

Error Message "Connection Error." - when no WiFi is present, is confusing.

Better logging

Database runs full without proper erorr message

When the database gets large the following error is reported in LogCat:

(13) statement aborts at 32: INSERT INTO samples(SYNCED,DATA,TS,SENSORID,PRIO,LOC,DATACLASS) VALUES (?,?,?,?,?,?,?) statement aborts at 2: [ROLLBACK;] cannot rollback - no transaction is active

at de.unikassel.android.sdcframework.persistence.DatabaseAdapterImpl.insertSamples(DatabaseAdapterImpl.java:410)

but no porper exeption handling happens.

App crashes on Samsung Galaxy S

After starting the app on a Samsung Galaxy S (Android 2.3.3) it crashes after 2-3 seconds of blank screen (process com.example.sdcf.embedded)

General problems

Some problems:

• sample frequency of the measurement of accelerometer doesn't match with the settings.
• the accelerometer data is not correct (some missing values)
• the data representation/organisation is not user friendly. Data alignment with timestamps is hard to handle.
• The log is incomplete
  (this was observed in 2 minutes dataset with running, walking, jumping and sitting)

Database connection broken

The data monitor page didn't work.
catalina.out:
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.Connection was implicitly closed by the driver.
at sun.reflect.GeneratedConstructorAccessor66.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at com.mysql.jdbc.Util.getInstance(Util.java:384)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:929)
at com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException(ConnectionImpl.java:1204)
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.java:1191)
at com.mysql.jdbc.ConnectionImpl.prepareStatement(ConnectionImpl.java:4276)
at com.mysql.jdbc.ConnectionImpl.prepareStatement(ConnectionImpl.java:4242)
at de.uni_koblenz.west.mobile_sensing.JsonApi.writeTagsData(JsonApi.java:127)
at de.uni_koblenz.west.mobile_sensing.JsonApi.doGet(JsonApi.java:85)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 48.794.775 milliseconds ago. The last packet sent successfully to the server was 48.794.775 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1122)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3317)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1941)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2114)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2696)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2105)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2264)
at de.uni_koblenz.west.mobile_sensing.JsonApi.writeGPSData(JsonApi.java:231)
at de.uni_koblenz.west.mobile_sensing.JsonApi.doGet(JsonApi.java:82)
... 18 more
Caused by: java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109)
at java.net.SocketOutputStream.write(SocketOutputStream.java:153)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3298)
... 25 more

App crashes while transmitting a big dataset

HTC EVO 3 Android 4.0.3.
I recorded data for round about one hour. After the recoding I had access to a wifi network and pushed the button "Force Sample Transmission". The app crashed 30 seconds after this with the error "Unfortunately, Live+Gov Collector has stopped."

Logging get out of sync

The log view on the mobile app does not receive updates
e.g. when activity is resumed.

NTP service hangs at startup

Network Request on Main Thread

ExportSensorData

Serialize SensorValues and Write to file system

ActivityThreading

The SensorManager has to survive the death of the MainActivity.

Therefore MainActivity needs to run in another Thread/Process
than SensorManager.

Transfer is Slow

Zipping 10.000 samples takes up to 30s on a Nexus 4 phone
Transfering of the resulting 180kb file takes another 30 secs.