Low power consumption RFID card reader based on NB-IOT

摘要

PROBLEM TO BE SOLVED: To provide a low power consumption RFID card reader which can be connected to an NB-IOT network. SOLUTION: A lithium battery, a power indicator, a microcontroller and an NB-IOT module are installed in a housing 1, low power consumption communication can be performed via the NB-IOT module, and low power consumption communication is performed via a charging interface 14. Power can be supplied, it is more convenient to use, by installing a temperature / humidity sensor and alarm module, the temperature of the usage environment can be detected, and if the temperature or humidity is too high, an alarm will be used. To reduce the impact on the useful life of the card reader. [Selection diagram] Fig. 1