Patent attributes
A system for monitoring a trailer includes a plurality of wireless sensors mounted to a trailer for monitoring conditions of the trailer; a master control unit attached to an outside surface of the trailer for receiving messages from the plurality of sensors, said master control unit including a GPS receiver module, a cellular data transceiver module for communicating with a central tracking computer via a cellular data network interfaced to the Internet, a local wireless network master transceiver module in wireless communication with the plurality of wireless sensors, and a microcontroller for controlling said local wireless network master transceiver module to periodically obtain sensor data from said wireless sensors and for controlling said cellular data transceiver module to transmit said location and sensor data; and a user interface for receiving user initiated inquires including alert requests or alert parameters and for displaying alerts including trailer status.