Systems and methods for processing and transmitting sensor data

摘要

Systems and methods for continuous measurement of an analyte in a host are provided. The system generally includes a continuous analyte sensor configured to continuously measure a concentration of analyte in a host and a sensor electronics module physically connected to the continuous analyte sensor during sensor use, wherein the sensor electronics module is further configured to directly wirelessly communicate sensor information to one or more display devices. Establishment of communication between devices can involve using a unique identifier associated with the sensor electronics module to authenticate communication. Times tracked at the sensor electronics module and the display module can be at different resolutions, and the different resolutions can be translated to facilitate communication. In addition, the frequency of establishing communication channels between the sensor electronics module and the display devices can vary depending upon whether reference calibration information is being updated.

主权项

1. A method for wirelessly exchanging glucose information between a first communication device associated with a continuous glucose sensor and a second communication device associated with a glucose information display device, the method comprising:
receiving user input, using a user interface of the second communication device, comprising an identifier associated with the first communication device; and generating and storing, using the second communication device, a second device ID based at least partially on the identifier; transmitting a first beacon using the first communication device, the first beacon comprising a first device ID; receiving the first beacon using the second communication device; determining, using the second communication device, if the first device ID transmitted by the first communication device matches the second device ID stored at the second communication device; executing an authentication protocol based on the second communication device determining that the first device ID matches the second device ID; and exchanging glucose information between the first communication device and the second communication device upon successful completion of the authentication protocol, wherein the authentication protocol includes
generating, using the second communication device, a first authentication key using a hash function applied to a challenge value provided by the first communication device and the identifier associated with the first communication device,transmitting, using the second communication device, a message having the first authentication key,receiving, using the first communication device, the message,generating, using the first communication device, a second authentication key based on the first challenge value, anddetermining, using the first communication device, if the first authentication key matches the second authentication key.