Temperature measurement device and temperature measurement method
The temperature measurement device includes a thermography 20 for measuring a temperature distribution of a predetermined range in a non-contact manner; a calibrator 21 including at least one heater 30 able to generate heat to a preset temperature; thermistors 32 a to 32 d provided on installation points on the calibrator 21 , and measuring temperatures at the installation points, the installation points having different temperatures; and a controller 22 for calibrating a first temperature measurement result obtained from a temperature distribution of a range covering an object (an eye E of a calf C) measured by the thermography 20 , based on temperature differences between a second temperature measurement result obtained from a temperature distribution of a range covering the calibrator 21 measured by the thermography 20 and a third temperature measurement result obtained from a temperature distribution of the calibrator 21 measured by the thermistors 32 a to 32 d.
1. A temperature measurement device for measuring a body temperature of an animal in a non-contact manner apart from a body of the animal, the temperature measurement device comprising:
a feed provider for providing the animal with feed;
a first temperature measurement portion for measuring a temperature distribution of a predetermined range in a non-contact manner;
a calibrator including a single heater able to generate heat to a preset temperature and including a heat conductor conducting heat from the single heater and having a temperature gradient such that a part of the heat conductor closer to the single heater has a highest temperature, and the temperature decreases away from the single heater;
second temperature measurement portions provided on installation points on the heat conductor, and measuring temperatures at the installation points; and
a controller for calibrating a first temperature measurement result obtained from a temperature distribution of a range covering an object measured by the first temperature measurement portion when the animal eats feed via the feed provider, by comparing
a second temperature measurement result obtained from a temperature distribution of a range covering the calibrator measured by the first temperature measurement portion with
temperatures of respective points of a third temperature measurement result obtained from a temperature distribution of the calibrator measured by the second temperature measurement portions.
2. The temperature measurement device of claim 1 , wherein
the feed provider is a nursing unit including an artificial nipple and a main body supporting the artificial nipple, and
in the main body, the first temperature measurement portion is provided in a higher position than the artificial nipple.
3. A temperature measurement method for measuring a body temperature of an animal in a non-contact manner apart from a body of the animal, the temperature measurement method comprising:
a first temperature measurement step for making a first temperature measurement portion measure a temperature distribution of a range covering an object when the animal eats feed via a feed provider for providing the animal with the feed, the first temperature measurement portion for measuring a temperature distribution of a predetermined range in a non-contact manner;
a second temperature measurement step for making the first temperature measurement portion measure a temperature distribution of a range covering a calibrator including a single heater able to generate heat to a preset temperature and including a heat conductor conducting heat from the single heater and having a temperature gradient such that a part of the heat conductor closer to the single heater has a highest temperature, and the temperature decreases away from the single heater;
a third temperature measurement step for making second temperature measurement portions measure a temperature distribution of the calibrator, the second temperature measurement portions being provided on installation points on the heat conductor and measuring temperatures at the installation points; and
a calibration step for calibrating a first temperature measurement result obtained from the first temperature measurement step based on temperature differences between a second temperature measurement result obtained from the second temperature measurement step and a third temperature measurement result obtained from the third temperature measurement step.