The term trailer tracking refers to the concept of tracking the position of an articulated vehicle

Semi-trailer truck

A semi-trailer truck, also known as a semi, tractor-trailer, or articulated truck or articulated lorry, is an articulated vehicle consisting of a towing engine , and a semi-trailer A semi-trailer truck, also known as a semi, tractor-trailer, or (in the United Kingdom and Ireland) articulated truck...

’s trailer

Semi-trailer

A semi-trailer is a trailer without a front axle. A large proportion of its weight is supported by a road tractor, a detachable front axle assembly known as a dolly, or the tail of another trailer...

 unit. This position is determined through a tracking device fitted to the trailer. A communication network or satellite

Satellite

In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavour. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon....

 network is then used to transfer this positional data to a centralised collection point. Trailer tracking is used to increase productivity

Productivity

Productivity is a measure of the efficiency of production. Productivity is a ratio of what is produced to what is required to produce it. Usually this ratio is in the form of an average, expressing the total output divided by the total input...

by optimising the use of trailer fleets.

Trailer Tracking System

Trailer tracking systems can provide essential information to trailer operators on; status, location, door activity and history. These systems utilize the information to provide reliable and protected services to shippers of perishable commodities.