Abstract: A system includes a vehicle having a rear bumper and a trailer hitch assembly having a hitch trailer ball; a trailer having a tongue adapted to engage with the hitch trailer ball and a platform configured to carry a load; and a monitoring system having a computer, a sensor operably associated with the computer and configured to measure a weight of the load carried by the trailer, and an alarm operably associated with the computer and configured to notify a user as a predetermined weight threshold is reached.

Abstract: In one aspect, a method includes registering a recipient platform, receiving a request to reserve a delivery date or time for a delivery of a parcel to a name or an address, identifying the recipient platform as being associated with the name or the address, and creating a reservation for the delivery. The method further includes generating information describing a position and an environment of the recipient platform, and providing the information to the delivery entity. In one aspect, a system includes a receiving area and a trigger wire structure. The trigger wire structure includes posts and one or more trigger wires strung between the posts. The posts are positioned around a periphery of the receiving area, and the trigger wire is positioned above the receiving area. The trigger wire is positioned to direct a parcel dropped near the trigger wire onto the receiving area.