Cold chain temperature monitoring system and method based on dual-mode label

The invention discloses a cold chain temperature monitoring system and method based on a dual-mode label. The system includes a temperature measuring label and a reader-writer; the temperature measuring label is in a passive working mode in daily life, responds to a command sent by the reader-writer, collects real-time temperature in a transportation box, feeds back the collected information to the reader-writer in a passive mode, enters an active working mode when receiving the starting active command signal of the reader-writer, continuously collects the temperature in the transportation boxaccording to a preset time interval and stores the temperature, and transmits the collected information to a data receiving end through RFID when label temperature data need to be read in batches; and the reader-writer is used for sending a command to enable the temperature measuring label to enter the active working mode, controlling the temperature measuring label to perform the continuous collection of the temperate,