Physiological condition determination system

A non-transitory computer readable medium, useful in association with a processor, including instructions configured to:

• detect a first optical signal of residual light from a tag attached to animal tissue of an animal, the tag including a motion sensor, a light source, and an optical sensor, the light source for emitting light into the animal tissue, and the optical sensor for detecting the first optical signal;
• extract a first measurement of peripheral capillary oxygen saturation from the first optical signal;
• qualify the first measurement of peripheral capillary oxygen saturation as a baseline based on motion data from the motion sensor;
• detect a second optical signal with the optical sensor;
• extract a second measurement of peripheral capillary oxygen saturation from the second optical signal;
• qualify the second measurement of peripheral capillary oxygen saturation;
• store the second measurement of peripheral capillary oxygen saturation as a tag feature set within the computer readable medium;
• store a history including the tag feature set and previous tag feature sets within the computer readable medium;
• determine animal distress based on a difference between the second measurement of peripheral capillary oxygen saturation and the baseline;
• send a first instruction to the tag, the first instruction including decreasing a sampling rate of the tag based on a risk of animal distress decreasing, or increasing the sampling rate of the tag based on the risk of animal distress increasing;
• and
• send a second instruction to the tag, the second instruction including increasing the sampling rate based on a diet of the animal being changed, and not sending the second instruction based on the diet of the animal not being changed.

A physiological condition determination system comprising:

• a tag configured to attach to animal tissue of an animal, the tag including a motion sensor, a light source and an optical sensor, the light source configured to emit light into the animal tissue, and the optical sensor configured to detect a first optical signal and a second optical signal of residual light from within the animal tissue;
• and
• a processor configured to:
• extract a first measurement of peripheral capillary oxygen saturation from the first optical signal;
• qualify the first measurement of peripheral capillary oxygen saturation as a baseline based on motion data from the motion sensor;
• extract a second measurement of peripheral capillary oxygen saturation from the second optical signal;
• qualify the second measurement of peripheral capillary oxygen saturation;
• store the second measurement of peripheral capillary oxygen saturation as a tag feature set within a computer readable medium;
• store a history including the tag feature set and previous tag feature sets within the computer readable medium;
• determine animal distress based on a difference between the second measurement of peripheral capillary oxygen saturation and the baseline;
• send a first instruction to the tag, the first instruction including decreasing a sampling rate of the tag based on a risk of animal distress decreasing, or increasing the sampling rate of the tag based on the risk of animal distress increasing;
• and
• send a second instruction to the tag, the second instruction including increasing the sampling rate based on a diet of the animal being changed, and not sending the second instruction based on the diet of the animal not being changed.