Abstract: Systems and methods for monitoring of personal belongings and other devices. A mobile application may transmit a first message towards an embedded device, and the first message may include an instruction for the embedded device to transition to a passive state to monitor for a movement update of the embedded device. The mobile application may receive a second message from the embedded device, and the second message may include an indication that the embedded device has detected a movement update. The mobile application may publish an alert on a user interface relating to the experienced movement update. The embedded device may receive the first message from the mobile application, detect that the embedded device has experienced the movement update; and transmit the second message to the mobile application.

Abstract: A release system for a tether line includes a housing having a side that is at least partially open. A tether lead within the housing is adjacent to the side of the housing. A release mechanism in the housing includes a shackle having a closed end and an open end. The shackle is disposed in the housing at a portion therein that is lower than that of the tether lead. The release mechanism also includes a hinge for mounting the shackle within the housing. In a tether-retention mode, the open end of the shackle faces the top of the housing and the shackle is prevented from rotation about the hinge. In a tether-release mode, the shackle is free to rotate about the hinge under gravity wherein the open end of the shackle rotates to face the side of the housing.