REMOTE DATA ACCESS AND SYSTEM CONTROL

摘要

A system for enabling a user to monitor and control a remote equipment site over the Internet. All user access is through modules, or servlets (114), placed on a central server (100) to prevent the central server software from being directly accessed. Several levels of access are provided, through the use of codes (110), to prevent unauthorized access. The central server (100) has bi-directional communication with the remote units (122) that are connected to, and communicate with, the field equipment (124). The central server (100) can notify the user of problems or current status through the use of notification means. The central server (100) automatically contacts, and/or receives data from, each user's remote unit (122) on a predetermined schedule and updates data (112) from each remote unit. The central server software also enables the user to request a data update from the remote filed unit (122).