US 12,190,695 B2
Methods and apparatus for monitoring vessel activity
William Patrick McGrath, Tavistock (CA); Peter Hunt, Oakville (CA); and Ferenc Vereb, Etobicoke (CA)
Assigned to Navcast Inc., Mississauga (CA)
Appl. No. 17/258,139
Filed by NAVCAST INC., Mississauga (CA)
PCT Filed Jun. 19, 2019, PCT No. PCT/CA2019/050860
§ 371(c)(1), (2) Date Jan. 5, 2021,
PCT Pub. No. WO2020/006625, PCT Pub. Date Jan. 9, 2020.
Claims priority of provisional application 62/694,873, filed on Jul. 6, 2018.
Prior Publication US 2021/0280032 A1, Sep. 9, 2021
Int. Cl. G08B 17/04 (2006.01); G08B 25/00 (2006.01); G08B 29/04 (2006.01)
CPC G08B 17/04 (2013.01) [G08B 25/00 (2013.01); G08B 29/046 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A device for monitoring fishing vessel activity, comprising:
a blast sensor mountable to an internal surface of a hull of a vessel for providing a signal responsive to pressure waves in a liquid;
a position sensor for measuring a position of the vessel;
a processor operable to detect a blast event based on a characteristic of a signal from said blast sensor; and
a wireless communication module to wirelessly transmit status information including a unique identifier of a monitoring unit and indicative of the position of the monitoring unit and to send a wireless signal in response to said detected blast event.