Media exposure linking utilizing bluetooth signal characteristics

A computer-implemented method for establishing media data exposure for a computer processing device, comprising the steps of:

• storing media exposure data relating to media data received in the computer processing device;
• receiving pairing data related to the pairing of the computer processing device with a plurality of portable computing devices using a Bluetooth connection when media data is received;
• processing a signal strength characteristic of the Bluetooth connection in the computer processing device for each of the paired plurality of portable computing devices;
• associating each signal strength characteristic with the received media data to determine which signal strength characteristic is the strongest when the media data was received in the computer processing device;
• and
• associating the strongest signal strength characteristic with the media exposure data.