Real Time Vehicle Tracking - GPS Trailer Tracking

Real time vehicle tracking is a GPS trailer trackingtechnology that is dependent on real-time positioning information. GPS trailer tracking has its restrictions and is not a viable option.

Real Time Vehicle Tracking

Different technologies are used in real time vehicle tracking systems, such as GPS, vehicle tag-based AVI, and video image processing. Commercial image processing systems work well in free-flowing traffic, but are not effective enough with congestions, shadows and lighting transitions.

Video data tracking can be done using different approaches:

· 3D model based tracking
· Region based tracking
· Active contour based tracking
· Feature based tracking

Feature-based auto tracking systems in real time vehicle trackings, track sub-features such as distinguishable lines or points on the object. In active contour based tracking, the idea is to have a representation of the bounding contour of the object and update it dynamically. 3D modeling involves recovering trajectories and models with high accuracy for lesser number of vehicles. In region based real time vehicle tracking, the system identifies a connected region in the image associated with each vehicle and tracks it over time using a cross-correlation measure. Wireless vehicle tracking uses wireless devices to provide real-time vehicles tracking.

GPS Vehicle Tracking

GPS vehicle trackers have some major limitations. At best GPS vehicle tracking is more suited for navigational purposes than vehicle tracking. GPS vehicle tracking systems are easily disabled and are prone to error. Determining a position accurately using GPS vehicle tracking depends on the various types of errors inherent in the technology. Reducing these errors would lead to more accurate results. GPS auto trackers are often error-prone and unreliable. There are a lot of problems associated with installing a GPS vehicle tracking system that limits its efficiency when tracking stolen vehicles. GPS also requires line-of-sight visibility to at least four satellites in the sky. Because of this limitation, GPS vehicle tracking is ineffective in tunnels and mountainous terrains, but even low-rise buildings and trees obstruct signals.

For additional pertinent information on GPS Vehicle Tracking System click on the adjacent link.

GPS Trailer Tracking

A functional GPS trailer tracking system is a vital part of keeping track of the fleet. Asset management devices are typically installed on the tractor-cab of the transport vehicle - the truck, train locomotive or vessel. Thus the cargo can be located when the load is attached. But sometimes, when an accompanying load like the trailer, railcar or barge is disconnected, location information is lost. Under such circumstances, these assets may be lost for hours or days or more, which leads to a total loss of perishable cargo or missed deadlines for time-critical loads. GPS trailer trackers are a good way to get real time data for customer service and optimization systems. Information obtained from the GPS trailer trackers helps to cut costs and increases productivity and ensures optimum utilization of resources. A GPS trailer tracking system can also be integrated with dispatch and other management functions.

Real Time Tracking

Real time tracking means to calculate the position of an object at the current time and update it constantly as time changes. Real time tracking is thus performed on the current object in the current location and ensures that information is not delayed or recorded for post-analysis. This system uses GPS for accurate positioning and cellular mobile network for communications, that is, providing real time updates over the telephone. A cellular based system does not operate effectively on battery-only power without periodically reconnecting to line power sources. Satellite based communications alleviates some of the coverage problems associated with cellular tracking devices.