US 12,363,838 B2
Tamper detection for intrinsically-safe or explosion-proof enclosures
Jonathan Quinn Brubacher, Waterloo (CA); Mahendra Fuleshwar Prasad, Waterloo (CA); Yu Gao, Waterloo (CA); Scott Leonard Dill, Paris (CA); Cortez Corley, Waterloo (CA); and Ying Tong Man, Waterloo (CA)
Assigned to BlackBerry Limited, Waterloo (CA)
Filed by Blackberry Limited, Waterloo (CA)
Filed on Apr. 19, 2023, as Appl. No. 18/303,143.
Prior Publication US 2024/0357754 A1, Oct. 24, 2024
Int. Cl. H05K 5/02 (2006.01); G01S 5/00 (2006.01); G06F 21/86 (2013.01); G08B 29/04 (2006.01); H04W 4/029 (2018.01); H05K 5/13 (2025.01)
CPC H05K 5/0208 (2013.01) [G01S 5/0009 (2013.01); G06F 21/86 (2013.01); G08B 29/046 (2013.01); H04W 4/029 (2018.02); H05K 5/0209 (2022.08); H05K 5/0247 (2013.01); H05K 5/13 (2025.01)] 18 Claims
OG exemplary drawing
 
1. An electronic wireless device deployed for use in potentially hazardous locations, comprising:
an enclosure;
a battery;
a sensor generating a first signal indicative of an open enclosure event indicating the enclosure has been opened;
a wireless communication module;
a location sensor;
a controller configured to receive the first signal and to receive a second signal indicating a battery tamper event, to determine that the electronic wireless device is located in a hazardous environment and, responsive to that determination and based on detection of both the open enclosure event and the battery tamper event, to generate and transmit a tamper report to a remote server over a wireless communication channel using the wireless communication module; and
a location sensor to output geolocation data to the controller, and wherein the controller is configured to compare the geolocation data from the location sensor with data defining hazardous locations to determine that the electronic wireless device is located in the hazardous environment.