Elevator remote data acquisition, human-machine interactive remote monitoring system
The system takes AT89S52 microcontroller as the control core and the W5500 Ethernet module as the interface.
microchip - AT89S52 microcontroller
x 1
WIZnet - W5500
x 1
Overview:
The system takes AT89S52 microcontroller as the control core and the Ethernet module as the interface. A method of realizing the communication between AT89S52 microcontroller and Ethernet by using W5500 Ethernet to SPI module is introduced. Developed the structure and usage of W5500 and the hardware connection method and software design of AT89552.
The working principle of the elevator remote monitoring system:
First converted by the elevator control part 485 or other serial signals and then directly transmitted to the AT89S52 microcontroller in digital form. After the AT89S52 single-chip microcomputer obtains the corresponding value, it is analyzed by the main program and compared with the set value. According to the actual situation, the output signal controls the level of each port of the output circuit to drive the peripheral control circuit to work and realize the control of the controlled object. At the same time, the single-chip microcomputer is connected to W5500 through SPI, and is connected to the host computer through Ethernet to realize remote communication based on Ethernet.
System composition and principle:
Schematic diagram of elevator implementation application:
