公开(公告)号：US10346132B2

公开(公告)日：2019-07-09

申请号：US15727196

申请日：2017-10-06

申请人： MOJ.IO INC.

发明人： Kenneth W. Hawk ,  Soheil Azimi ,  Taran Grey ,  Behraad Bahreyni

IPC分类号： B60R25/34 ,  G06F7/02 ,  B60R25/10 ,  G07C5/08

摘要： A telematics device located on-board a vehicle or other enclosure assists in detecting a glass break event for a window of the vehicle or enclosure based on acceleration measurements obtained from acceleration sensors of the telematics device. A power spectral density (PSD) for a plurality of packets of acceleration data within a higher frequency band and/or a lower frequency band are determined. A glass break event is detected upon determining that an average PSD for the higher frequency band exceeds an upper PSD threshold. Alternatively or additionally, a glass break event is detected upon determining that a second maximum PSD is greater than a first PSD threshold for the lower frequency band, and that a difference between the second maximum PSD and a minimum PSD is greater than a second PSD threshold for the lower frequency band.

公开(公告)号：US20190107998A1

公开(公告)日：2019-04-11

申请号：US15727196

申请日：2017-10-06

申请人： MOJ.IO INC.

发明人： Kenneth W. Hawk ,  Soheil Azimi ,  Taran Grey ,  Behraad Bahreyni

IPC分类号： G06F7/02 ,  G07C5/08 ,  B60R25/10

CPC分类号： G06F7/026 ,  B60R25/1004 ,  B60R25/1009 ,  B60R25/102 ,  B60R25/34 ,  G07C5/0808

摘要： A telematics device located on-board a vehicle or other enclosure assists in detecting a glass break event for a window of the vehicle or enclosure based on acceleration measurements obtained from acceleration sensors of the telematics device. A power spectral density (PSD) for a plurality of packets of acceleration data within a higher frequency band and/or a lower frequency band are determined. A glass break event is detected upon determining that an average PSD for the higher frequency band exceeds an upper PSD threshold. Alternatively or additionally, a glass break event is detected upon determining that a second maximum PSD is greater than a first PSD threshold for the lower frequency band, and that a difference between the second maximum PSD and a minimum PSD is greater than a second PSD threshold for the lower frequency band.