Impact Events are reported outside of the type of TCP configuration paradigm.
Impact Event
An impact event reports all of the accelerometer readings recorded in a single second as part of a series of data that is generated when the configured threshold for an impact event is exceeded.
If, for example, the configuredSecondsOfReportingPriorToEvent is 5 and the configuredSecondsOfReportingAfterEvent is 5, then there would be 11 events generated for a single incident: 5 seconds of accelerometer data from before the threshold was exceeded, one second of accelerometer data that represents the trigger (secondsRelativeToTrigger equals 0), and 5 seconds of accelerometer data from after the threshold was exceeded.
{
"header": {...},
"body": {
"type": "ImpactEvent",
"timestamp": "2018-06-04T19:01:58-04:00",
"tripNumber": 103,
"imei": "333607123098821",
"gpsReading": {
"heading": 156,
"horizontalDilutionOfPrecision": 0,
"latitude": 43.34887,
"longitude": -83.04490,
"numberOfSatellites": 7,
"hemisphere": "NorthWest",
"fixQuality": "Standard"
},
"configuredSecondsOfReportingPriorToEvent": 2,
"configuredSecondsOfReportingAfterEvent": 10,
"thresholdValue": 3000,
"triggerValue": 3609,
"vehicleSpeedAtTimeOfImpactInMph": 39.700000762939,
"secondsRelativeToTrigger": 10,
"accelerometerDataType": "Normalized",
"accelerometerSamplesInMg": [
{
"z": 992,
"y": 15,
"x": -15
},
{
"z": 988,
"y": 19,
"x": -23
},
{
"z": 976,
"y": 23,
"x": -23
},
{
"z": 980,
"y": 15,
"x": -19
},
{
"z": 972,
"y": 23,
"x": -15
},
{
"z": 968,
"y": 19,
"x": -19
},
{
"z": 964,
"y": 19,
"x": -15
},
{
"z": 957,
"y": 19,
"x": -11
},
{
"z": 953,
"y": 19,
"x": -15
},
{
"z": 953,
"y": 19,
"x": -15
},
{
"z": 945,
"y": 15,
"x": -11
},
{
"z": 937,
"y": 19,
"x": -7
},
{
"z": 937,
"y": 19,
"x": -3
},
{
"z": 937,
"y": 31,
"x": -7
},
{
"z": 949,
"y": 23,
"x": -3
},
{
"z": 937,
"y": 15,
"x": 0
},
{
"z": 941,
"y": 23,
"x": -7
},
{
"z": 941,
"y": 15,
"x": -3
},
{
"z": 937,
"y": 19,
"x": -15
},
{
"z": 960,
"y": 15,
"x": -7
},
{
"z": 960,
"y": 11,
"x": -19
},
{
"z": 960,
"y": 11,
"x": -11
},
{
"z": 953,
"y": 19,
"x": -7
},
{
"z": 960,
"y": 15,
"x": -19
},
{
"z": 968,
"y": 15,
"x": -7
},
{
"z": 957,
"y": 15,
"x": 0
},
{
"z": 964,
"y": 11,
"x": -7
},
{
"z": 964,
"y": 11,
"x": -7
},
{
"z": 964,
"y": 11,
"x": -11
},
{
"z": 960,
"y": 11,
"x": -7
},
{
"z": 968,
"y": 15,
"x": -7
},
{
"z": 972,
"y": 19,
"x": -15
},
{
"z": 980,
"y": 15,
"x": -15
},
{
"z": 988,
"y": 23,
"x": -7
},
{
"z": 980,
"y": 15,
"x": -3
},
{
"z": 980,
"y": 15,
"x": -3
},
{
"z": 964,
"y": 19,
"x": -7
},
{
"z": 976,
"y": 15,
"x": 0
},
{
"z": 984,
"y": 19,
"x": 0
},
{
"z": 972,
"y": 15,
"x": -3
},
{
"z": 968,
"y": 15,
"x": 3
},
{
"z": 964,
"y": 15,
"x": 0
},
{
"z": 964,
"y": 19,
"x": 3
},
{
"z": 964,
"y": 19,
"x": 7
},
{
"z": 964,
"y": 27,
"x": 11
},
{
"z": 957,
"y": 23,
"x": 23
},
{
"z": 972,
"y": 19,
"x": 31
},
{
"z": 968,
"y": 27,
"x": 27
},
{
"z": 968,
"y": 15,
"x": 39
},
{
"z": 964,
"y": 19,
"x": 62
},
{
"z": 968,
"y": 15,
"x": 58
},
{
"z": 980,
"y": 19,
"x": 58
},
{
"z": 968,
"y": 11,
"x": 62
},
{
"z": 957,
"y": 19,
"x": 78
},
{
"z": 957,
"y": 19,
"x": 93
},
{
"z": 953,
"y": 15,
"x": 113
},
{
"z": 949,
"y": 11,
"x": 117
},
{
"z": 941,
"y": 7,
"x": 140
},
{
"z": 949,
"y": 7,
"x": 152
},
{
"z": 945,
"y": 3,
"x": 144
},
{
"z": 968,
"y": 11,
"x": 171
},
{
"z": 964,
"y": 3,
"x": 171
},
{
"z": 949,
"y": 3,
"x": 191
},
{
"z": 976,
"y": 3,
"x": 195
},
{
"z": 968,
"y": 3,
"x": 207
},
{
"z": 976,
"y": 3,
"x": 207
},
{
"z": 992,
"y": 3,
"x": 214
},
{
"z": 976,
"y": 3,
"x": 222
},
{
"z": 980,
"y": 7,
"x": 234
},
{
"z": 976,
"y": 11,
"x": 238
},
{
"z": 972,
"y": 7,
"x": 246
},
{
"z": 968,
"y": 3,
"x": 250
},
{
"z": 972,
"y": 11,
"x": 250
},
{
"z": 957,
"y": 7,
"x": 265
},
{
"z": 964,
"y": 11,
"x": 277
},
{
"z": 964,
"y": 15,
"x": 277
},
{
"z": 937,
"y": 15,
"x": 285
},
{
"z": 968,
"y": 15,
"x": 296
},
{
"z": 941,
"y": 27,
"x": 304
},
{
"z": 964,
"y": 15,
"x": 292
},
{
"z": 945,
"y": 23,
"x": 304
},
{
"z": 941,
"y": 19,
"x": 308
},
{
"z": 945,
"y": 35,
"x": 312
},
{
"z": 929,
"y": 27,
"x": 320
},
{
"z": 949,
"y": 27,
"x": 308
},
{
"z": 949,
"y": 23,
"x": 304
},
{
"z": 933,
"y": 19,
"x": 324
},
{
"z": 964,
"y": 15,
"x": 324
},
{
"z": 949,
"y": 19,
"x": 320
},
{
"z": 925,
"y": 11,
"x": 328
},
{
"z": 929,
"y": 7,
"x": 343
},
{
"z": 957,
"y": 11,
"x": 324
},
{
"z": 941,
"y": 15,
"x": 335
}
]
}
}
- type: (string) - Indicates a type for this object.
- timestamp: (string) - ISO 8601-formatted time stamp showing when the event was produced on the device.
- tripNumber: (number) - A sequential number that increases after each trip.
- imei: (string) - International Mobile Equipment Identity number, unique to every Danlaw Datalogger.
- gpsReading (object) - Contains the location where this event was produced.
- heading: (number) - The angle between the direction in which the object's nose is pointing and a reference direction (e.g. true north).
- horizontalDilutionOfPrecision: (number) - Horizontal Dilution of Precision.
- latitude: (number)
- longitude: (number)
- numberOfSatellites: (number) - Number of satellites used to determine location for this event.
- hemisphere: (enum[string]) - The hemisphere of the globe where this event was produced.
- Members
- `NorthWest`
- `NorthEast`
- `SouthWest`
- `SouthEast`
- fixQuality: (enum[string]) - The validity and accuracy of the GPS data.
- Members
- `NoFix` - Latitude and longitude are invalid.
- `Standard` - 2D or 3D fix. Latitude and longitude are valid.
- `Differential` - Enhanced GPS accuracy.
- configuredSecondsOfReportingPriorToEvent: (number) - The number of seconds' worth of buffered accelerometer data that is configured to be collected prior to the threshold value was exceeded.
- configuredSecondsOfReportingAfterEvent: (number) - The number of seconds' worth of buffered accelerometer data that is configured to be collected after the threshold value was exceeded.
- thresholdValue: (number) - The configured accelerometer threshold in mG.
- triggerValue: (number) - The actual accelerometer reading that triggered the event in mG.
- vehicleSpeedAtTimeOfImpactInMph: (number) - The vehicle speed collected at the time the threshold value was exceeded in MPH.
- secondsRelativeToTrigger: (number) - The number of seconds relative to the time the threshold value was exceeded.
- accelerometerDataType: (enum[string]) - The type of accelerometer data in the array of samples.
- Members:
- `Normalized` - X, Y, and Z-axis readings are in line with the vehicle, regardless of the device's orientation inside the vehicle.
- `Raw` - X, Y, and Z-axis readings are oriented to the datalogger.
- accelerometerSamplesInMg: [array(objects)]