Infrared ear temperature measuring device

An infrared ear temperature measuring device, comprising:

• a handle body;
• a measuring probe connected to one end of the handle body;
• an infrared sensing assembly disposed within the measuring probe, the infrared sensing assembly comprising a heating element, a temperature-sensing element, and a thermopile element;
• wherein the temperature-sensing element is configured to detect a temperature of the measuring probe and to obtain an initial temperature measurement value and a plurality of monitored temperature measurement values;
• wherein the heating element is configured to heat the measuring probe;
• and
• wherein the thermopile element is configured to detect a human body temperature after the measuring probe is placed into an ear canal;
• and
• a processor disposed in the handle body or the measuring probe, the processor comprising a control unit;
• wherein, when the initial temperature measurement value is less than or equal to X, the control unit drives the heating element, and during a heating process, the control unit drives the heating element using at least two heating pulse-width modulation (PWM) signals having different duty cycles, and dynamically controls an operating state of the heating element based on the monitored temperature measurement values;
• and
• wherein, when any one of the monitored temperature measurement values is greater than A, the control unit stops driving the heating element, and wherein X is less than A.