The working principle is to install a series of radio frequency cards (also known as induction cards) representing different points on the patrol line. When patrolling to each point, the patrolman reads the card with a hand-held guard line patrol system (equivalent to a card reader), and records the "card number" and "card reading time" representing the point. After the patrol is completed, the patrol system will send the data to the computer software for processing, so as to understand the patrol situation (location, time, etc.). ) can be recorded and evaluated. The system software adopts intelligent scheduling, automatic data processing and verification, which can show at a glance whether the patrol personnel patrol according to the required time and route, whether there are any situations such as not patrolling, missing patrol, being late, leaving early, out of order, etc. The operation is simple. It is convenient to select different time periods, routes, patrol points, patrol personnel and other elements for query and statistics, and it is a patrol management software with real comprehensive management function.