Thermal sensor position detecting device

A device capable of collecting data used to determine an angular position of the device relative to a user of the device, comprising:

• a first sensor configured to detect temperature at a surface of the user's body;
• a non-transitory computer memory;
• one or more processors coupled to the memory;
• computer software stored in the memory and executable by the one or more processors, said computer software comprising instructions for:
• receiving from the first sensor first data corresponding to a first temperature detected when the first sensor is pointed toward the user's body;
• receiving from the first sensor second data corresponding to a second temperature detected when the first sensor is not pointed toward the user's body;
• combining said first data and said second data to produce a combined data set;
• generating a neural network weight from the combined data set using a machine learning algorithm;
• generating a neural network function using the neural network weight, wherein the neural network function is configured to receive as input data corresponding to temperature and output a probability of whether the input data matches the first data;
• receiving from the first sensor third data corresponding to a third temperature;
• inputting the third data to the neural network function to generate a value indicating the extent to which the third data matches the first data.