Differences
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projs:actcat:home [2011/05/30 18:02] garygary123456 |
projs:actcat:home [2011/07/19 18:07] (current) zfy7113639 |
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- iOS app to collect telemetry information | - iOS app to collect telemetry information | ||
- data mining and classification of activities from the telemetry | - data mining and classification of activities from the telemetry | ||
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===== iOS App ===== | ===== iOS App ===== | ||
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^ iPad | Accelerometer\\ Ambient light sensor| Wi-Fi\\ Digital compass\\ Assisted GPS (Wi-Fi + 3G model)\\ Cellular (Wi-Fi + 3G model) | Dock connector port\\ 3.5-mm stereo headphone jack\\ Built-in speaker\\ Microphone\\ Micro-SIM card tray (Wi-Fi + 3G model only) | | ^ iPad | Accelerometer\\ Ambient light sensor| Wi-Fi\\ Digital compass\\ Assisted GPS (Wi-Fi + 3G model)\\ Cellular (Wi-Fi + 3G model) | Dock connector port\\ 3.5-mm stereo headphone jack\\ Built-in speaker\\ Microphone\\ Micro-SIM card tray (Wi-Fi + 3G model only) | | ||
^ iPad2 | Three-axis gyro\\ Accelerometer\\ Ambient light sensor| Wi-Fi\\ Digital compass\\ Assisted GPS (Wi-Fi + 3G model)\\ Cellular (Wi-Fi + 3G model) | Dock connector port\\ 3.5-mm stereo headphone jack\\ Built-in speaker\\ Microphone\\ Micro-SIM card tray (Wi-Fi + 3G model only) | | ^ iPad2 | Three-axis gyro\\ Accelerometer\\ Ambient light sensor| Wi-Fi\\ Digital compass\\ Assisted GPS (Wi-Fi + 3G model)\\ Cellular (Wi-Fi + 3G model) | Dock connector port\\ 3.5-mm stereo headphone jack\\ Built-in speaker\\ Microphone\\ Micro-SIM card tray (Wi-Fi + 3G model only) | | ||
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+ | Sensor attributes | ||
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+ | Location <CLLocation> | ||
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+ | altitude: for getting the height, just like the altitude in geography. Measured by meter | ||
+ | coordinate(latitude, longitude): just same as those in geography. | ||
+ | For latitude, the range should be [-90(south pole), 90(north pole)]. | ||
+ | For longitude, the range should be [-180(west of the prime meridian), 180(east of the prime meridian)] | ||
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+ | course: | ||
+ | Course values are measured in degrees starting at due north and continuing clockwise around the compass. Thus, north is 0 degrees, east is 90 degrees, south is 180 degrees, and so on. Course values may not be available on all devices. A negative value indicates that the direction is invalid. | ||
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+ | horizontalAccuracy | ||
+ | The radius of uncertainty for the location, measured in meters. | ||
+ | The location’s latitude and longitude identify the center of the circle, and this value indicates the radius of that circle. A negative value indicates that the location’s latitude and longitude are invalid. | ||
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+ | speed:The instantaneous speed of the device in meters per second. | ||
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+ | time:The time at which this location was determined. | ||
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+ | verticalAccuracy:The accuracy of the altitude value in meters. The value in the altitude property could be plus or minus the value indicated by this property. A negative value indicates that the altitude value is invalid. | ||
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+ | Accelerometer <UIAccelerometer> | ||
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+ | x, y, z: the accelerometer for the device in triple direction | ||
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+ | timestamp:The relative time at which the acceleration event occurred. | ||
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===== Telemetry Mining ===== | ===== Telemetry Mining ===== |