The invention discloses an
elevator emergency calling
system and a control method. The
elevator emergency calling
system comprises an embedded
microcontroller minimum
system, a 4G communication circuit, a pyroelectric sensing circuit, a Hall sensing circuit, a one-key dialing circuit, a power circuit, a real-time
clock circuit and a data storage circuit. The embedded
microcontroller minimum systemcomprises a main control
chip, and a reset circuit, a
clock circuit and a starting circuit which are electrically connected with the main control
chip. The 4G communication circuit, the pyroelectricsensing circuit, the Hall sensing circuit, the one-key dialing circuit, the power supply circuit, the real-time
clock circuit and the data storage circuit are respectively connected with the differentpins of the main control
chip through the conducting wires. The system is high in intelligent degree, the rescue efficiency is improved, and the passenger
trapping time is shortened. The 4G communication circuit is arranged to achieve the
wireless communication with the outside, the signals are not easy to interfere, the attenuation degree is low, the conversation quality is high, and the rescueis facilitated when people are trapped in an
elevator. Compared with an existing wired connection mode, according to the present invention, the conducting wires are saved, the maintenance is convenient, and the cost is low.