| 摘要 |
The tracking system monitors many trackable devices each transmitting geographic locus, device id and event data via GPS, GPRS or GSM communications channels. The system is typically an ASP model and presents a dynamic display of the tracking device data (data such as, tracked asset, driver, load condition, speed, direction, event code, messages to and from the device, and party owner-controller) to the user-customer. The system dynamically displays tracking data and an asset tool bar which triggers action and report selection tools. These action-report tools initiate: a polling or ping signal to the tracking device, display of historic reports, message signals to the tracking device, display of historic route overlaid on a map, display of current location with other tracking devices monitored by the customer, and display of current tracked location and geographic limit imposed thereon, that is, a geo fence.
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