LCC is an elevator management application which integrates remote calling, data statistics, status query and other functions. After login application, users can call the elevator directly through the application, saving the time for users to wait for the elevator. At the same time, maintenance personnel can also use the application to view the operation status of the elevator and the operation log directly and remotely. When elevator operation problems occur, through the application of investigation problems, can directly solve the problem after arriving at the scene, improve the efficiency of maintenance personnel.