| 摘要 |
PROBLEM TO BE SOLVED: To obtain a temperature-recording device and system where required memory capacity has been reduced by recording a temperature to be monitored while creating a histogram. SOLUTION: A temperature memory 131 as a recording device is thrown into a container where refrigerated food such as lunch and beverage to be distributed, for example, to a convenience store is accommodated and is used to detect and record the temperature of the food. A measurement control part 148 measures the temperature of the food at a specific sampling period by a sensor part 149 and writes the temperature data at a temperature history memory 146. A time stamp being calculated from a measurement start date/time and a measurement interval is added to the temperature data. Also, a measurement control part 148 divides the temperature of the food into zones, and distributes the measured temperature data into the zones for counting, thus creating a histogram for writing into a histogram memory 144. Then, when the food is delivered to a store, the temperature memory 131 is taken out of the container and data is transmitted. |
