APPARATUS AND SYSTEM FOR TRANSMITTING TEMPERATURE INFORMATION BY USING WIRELESS COMMUNICATION, NECESSARY FOR STORING THE TEMPERATURE INFORMATION IN STORAGE MEDIUM LOCATED AT SEPARATE PLACE EXCEPT CAR

摘要

PURPOSE: An apparatus and a system for transmitting temperature information by using wireless communication are provided to keep temperature data in a storage medium almost permanently. CONSTITUTION: A temperature sensor(21) installed in a freezing/refrigerating unit of a car measures the temperature of the freezing/refrigerating unit at certain time intervals and generates temperature signals. An analog/digital converter(22) samples an analog temperature signal into digital temperature data. A memory(23) stores temperature data. A microprocessor(24) receives the temperature data from the analog/digital converter(22), stores it in the memory(23) and converts the temperature data into temperature information data. A clock(25) transmits time to the microprocessor(24). A receiver(26) receives a car temperature request signal from a management terminal(30). A demodulator(27) demodulates the car temperature request signal and outputs it to the microprocessor(24). A modulator(28) receives the temperature information data from the microprocessor(24) and modulates it. A transmitter(29) transmits the modulated temperature information data to the management terminal(30).