US 12,222,363 B2
Device for low-power acceleration detection in a telematics device
Robert Spencer Hockin, Milton (CA); Paul Philip Ciolek, Milton (CA); and Xiaohui Yu, Toronto (CA)
Assigned to Geotab Inc., Oakville (CA)
Filed by Geotab Inc., Oakville (CA)
Filed on Sep. 20, 2022, as Appl. No. 17/948,536.
Claims priority of provisional application 63/250,536, filed on Sep. 30, 2021.
Prior Publication US 2023/0097111 A1, Mar. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 1/32 (2019.01); G01P 1/07 (2006.01); G06F 1/3287 (2019.01); G06F 1/3296 (2019.01); G06F 9/4401 (2018.01); G07C 5/00 (2006.01)
CPC G01P 1/07 (2013.01) [G06F 1/3287 (2013.01); G06F 1/3296 (2013.01); G06F 9/4418 (2013.01); G07C 5/008 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A telematics device, comprising:
a controller;
a sensor coupled to the controller;
a network interface coupled to the controller; and
a memory coupled to the controller, the memory storing machine-executable programming instructions which, when executed by the controller, configure the telematics device to:
enter into a sleep mode;
perform a micro wakeup of a plurality of micro wakeups during which the telematics device powers up a limited number of peripherals;
read a first value from a sensor during the micro wakeup;
in response to determining that the first value is above a noise threshold:
extend a duration of the micro wakeup,
read a second value from the sensor during the micro wakeup;
performing a regular wakeup after the micro wakeup; and
send the first value and second value over a network interface to a telematics server during the regular wakeup.