General remote maintenance system for elevator operation parameters

The invention provides a remote maintenance system for general elevator operation parameters, and relates to the technical field of elevator Internet of Things, the system comprises an elevator data direct acquisition terminal, a server and a client; the elevator data direct acquisition terminal is arranged in an elevator machine room and is in communication connection with the elevator main controller through RS232; each of the elevator data direct acquisition terminal, the server and the client comprises a virtual network card, and the server constructs credible encrypted network channels with the elevator data direct acquisition terminal and the client through the virtual network cards; elevator protocol data of various brands are maintained in the elevator data acquisition terminal, so that the system is generally used for acquisition and transmission of elevator operation data of various brands, and meanwhile, maintenance and transmission of elevator operation parameters can be realized through a constru