Back to results
US 12,689,904 B2Granted
Method and apparatus for defending against wireless attack, and battery pack including the apparatus
AssigneeSamsung SDI Co., Ltd.
InventorMinsu Kim
Life of this patent
Estimating the term…
Abstract
A method for defending against wireless attack is disclosed, the method including collecting external RF signals through at least one external antenna, determining an attack signal from the external RF signals, and canceling the attack signal.
Claims17
A method for defending against wireless attack, the method comprising:
- collecting external radio frequency (RF) signals through at least one external antenna;
- determining an attack signal from the external RF signals;
- canceling the attack signal by generating a canceling RF signal having an opposite phase as the attack signal;
- broadcasting, by a master battery management system (BMS), a communication diagnosis request signal to at least one slave BMS a number (N) of times during a set period of time;
- counting a number of times that a communication diagnosis response signal is not received from the at least one slave BMS, determining that a communication error has occurred when the counted number exceeds a number (M);
- and
- determining an abnormal signal as the attack signal when the communication error is detected.
4 more elements
A wireless attack mitigation apparatus, the apparatus comprising:
- at least one external antenna coupled to a battery pack, and configured to receive external radio frequency (RF) signals;
- a signal analyzer configured to analyze the external RF signals;
- an attack determiner configured to determine an attack signal, which corresponds to an external intentional jamming attack, network traffic sniffing, or network traffic spoofing, from the external RF signals using analysis information of the external RF signals;
- an attack defender configured to cancel the attack signal by generating a canceling RF signal having an opposite phase as the attack signal;
- broadcasting, by a master battery management system (BMS), a communication diagnosis request signal to at least one slave BMS a number (N) of times during a set period of time;
- counting a number of times that a communication diagnosis response signal is not received from the at least one slave BMS, determining that a communication error has occurred when the counted number exceeds a number (M);
- and
- determining an abnormal signal as the attack signal when the communication error is detected.
5 more elements
A battery pack comprising:
- at least one battery module;
- at least one slave battery management system (BMS) configured to detect information about the at least one battery module;
- a master BMS configured to perform wireless communication with the at least one slave BMS, and is configured to control the at least one slave BMS based on information about the at least one battery module;
- and
- a wireless attack mitigation apparatus configured to defend against a wireless attack, and comprising:
- at least one external antenna configured to receive external radio frequency (RF) signals;
- a signal analyzer configured to analyze the external RF signals;
- an attack determiner configured to determine an attack signal, which corresponds to an external intentional jamming attack, network traffic sniffing, or network traffic spoofing, from the external RF signals using analysis information of the external RF signals;
- an attack defender configured to cancel the attack signal by generating a canceling RF signal having an opposite phase as the attack signal;
- broadcasting, by a master battery management system (BMS), a communication diagnosis request signal to at least one slave BMS a number (N) of times during a set period of time;
- counting a number of times that a communication diagnosis response signal is not received from the at least one slave BMS, determining that a communication error has occurred when the counted number exceeds a number (M);
- and
- determining an abnormal signal as the attack signal when the communication error is detected.
10 more elements
Dependencies are inferred from the claim text.