System and method of monitoring for out-of-bounds mobile pos terminals

A machine-moving monitoring system for mobile POS terminal, characterized by comprising a mobile POS terminal (100), a transaction server (200), a machine-moving risk monitoring device (300), a location server (400), a base station location database (500) and a trader profile database (600);

• wherein
• the mobile POS terminal (100) acquiring the base station information of the current base station where the mobile POS terminal is located by sending request information to surrounding base stations, and uploading the base station information and the POS terminal information altogether to the transaction server (200) when conducting the transaction;
• the base station location database (500) storing the actual location information of the base station in unique correspondence to the base station information;
• the trader profile database (700) storing the trader location information of the trader in unique correspondence to the trader information;
• the transaction server (200) forwarding the base station information and the POS terminal information received from the mobile POS terminal (100) to the machine-moving risk monitoring device (300);
• the location server (400), communicatively connected between the machine-moving risk monitoring device (300) and the base station location database (500), retrieving, from the base station location database, the actual location information of the base station corresponding to the base station information according to the base station information from the machine-moving risk monitoring device (300), and returning the actual location information of the base station to the machine-moving risk monitoring device (300);
• the machine-moving risk monitoring device (300) acquiring the base station information and the POS terminal information from the transaction server (200) and sending the acquired base station information to the location server and returns the acquired actual location information of the base station from the location server, on the other hand, retrieving the trader location information from the trader profile database (700) according to the acquired POS terminal information, and calculating the actual distance between the current base station and the trader according to the actual location information of the base station and the trader location information, and determining that a machine-moving behavior has occurred if the actual distance exceeds a specified distance.