Method and apparatus for detecting anti-skimming electromagnetic interference

An apparatus for detecting anti-skimming electromagnetic interference, comprising:

• a controller, a magnetic strip signal generating module, an electromagnetic interference receiver, a signal combining module and a magnetic strip decoding module;
• the magnetic strip signal generating module is connected to the controller and is configured to generate an original magnetic strip signal and send the original magnetic strip signal to the signal combining module;
• the electromagnetic interference receiver is configured to acquire the interference signal sent by the electromagnetic interference source to be tested and send the interference signal to the signal combining module;
• the signal combining module is connected to the magnetic strip signal generating module and the electromagnetic interference receiver respectively, and is configured to combine the original magnetic strip signal and the interference signal received so as to acquire the interfered magnetic strip signal and send the interfered magnetic strip signal to the magnetic strip decoding module;
• the magnetic strip decoding module is connected to the signal combining module, and is configured to receive the interfered magnetic strip signal, decode the interfered magnetic strip signal and then send the decoded parameter to the controller;
• the controller is connected to the magnetic strip decoding module, and is configured to receive the decoded parameter and determine whether the original magnetic strip parameter corresponding to the original magnetic strip signal is consistent with the decoded parameter;
• if so, obtaining a first test result that the electromagnetic interference source is unqualified to satisfy a magnetic card reading device's requirement for electromagnetic interference, otherwise, obtaining a second test result that the electromagnetic interference source is qualified to satisfy the magnetic card reading device's requirement for electromagnetic interference.