| 摘要 |
The present invention relates to a data communication device and method for recording and transmitting data concerning conditions within or pertaining to a transportation container, such as a controlled environment transportation container. The communication device includes a processor, a memory, a port for receiving the data, a first power source, a communication module operatively coupled to the first power source, and a computer program stored in the memory. The program is operative, when executed on the processor, to store the received data in the memory and to cause the communication module to periodically power on, attempt for a specified time period to establish a network connection, and in the event of a successful connection, communicate data stored in the memory over the network, and to power off. The processor independently operates to switch between sleep and active modes in accordance with a system timer or receipt of data, and to determine whether the communication module is to be activated. |
