Automatic crash detection

A method comprising:

• starting, by a processor of a mobile device, a time window for measuring acceleration using an accelerometer, wherein the time window comprises a time duration;
• during the time duration, receiving, by the processor of the mobile device and from the accelerometer, a plurality of acceleration measurements measured by the accelerometer;
• based on the plurality of acceleration measurements measured by the accelerometer and received during the time duration, determining, by the processor of the mobile device, a number of acceleration events occurring during the time window;
• when the number of acceleration events occurring during the time window exceeds a threshold number of acceleration events, determining that a vehicle associated with the mobile device was involved in a crash;
• and
• sending, by the mobile device, via communication circuitry associated with the mobile device, and to a computing device, data indicating that the vehicle was involved in a crash.

A non-transitory computer readable medium storing instructions that, when read by a processor of a mobile device, cause the processor of the mobile device to:

• start a time window for measuring acceleration using an accelerometer, wherein the time window comprises a time duration;
• during the time duration, receive, from the accelerometer, a plurality of acceleration measurements measured by the accelerometer;
• based on the plurality of acceleration measurements measured by the accelerometer and received during the time duration, determine a number of acceleration events occurring during the time window;
• when the number of acceleration events occurring during the time window exceeds a threshold number of acceleration events, determine that a vehicle associated with the mobile device was involved in a crash;
• and
• send, via communication circuitry associated with the mobile device and to a computing device, data indicating that the vehicle was involved in a crash.