Indirect tire pressure monitoring device and method

The invention provides an indirect tire pressure monitoring device which comprises a wheel speed sensor arranged on each wheel and used for detecting the wheel speed and a control part electrically connected with the wheel speed sensor. The control unit determines a pressure reduction determination index on the basis of the wheel speed detected by the wheel speed sensor, determines a steering compensation amount for steering compensation of the pressure reduction determination index, compensates the pressure reduction determination index on the basis of the steering compensation amount, and determines whether or not the pressure of the tire is reduced on the basis of the compensated pressure reduction determination index. 本发明提供间接式胎压监测装置，其中，所述间接式胎压监测装置包括：轮速传感器，设置在每个车轮并用于检测轮速，以及控制部，与轮速传感器电连接；控制部根据通过轮速传感器检测的轮速判断减压判定指标，并且判断用于减压判定指标的转向补偿的转向补偿量，并且依据转向补偿量对减压判定指标进行补偿，并依据补偿后的减压判定指标判断轮胎是否减压。