Intelligent pendant, infant monitoring method and system based on intelligent pendant

The application discloses an intelligent pendant, and an infant monitoring method and system based on the intelligent pendant, and belongs to the field of electronic control. The intelligent pendant mainly comprises a Bluetooth system level chip, a Bluetooth central device and a control module, wherein the Bluetooth system level chip is connected with the Bluetooth central device in a Bluetooth mode and receives a corresponding control instruction made by the Bluetooth central device according to distance information and a distance threshold value between the Bluetooth central device and the intelligent pendant; the controller executes a first prompt action according to the control instruction sent by the Bluetooth system-level chip. This application can judge in real time that intelligence hangs the actual distance between weighing down and the bluetooth central equipment, and then judges whether the infant is in apart from the threshold value, when the infant surpassed apart from the threshold value, intelligence hung the weighing down and made corresponding suggestion action, need not infant and/or head of a family and just can realize the head of a family to infant's effective control, reduces the risk that the infant wandered away or was abducted in public place.