Patent ID: 7831339

Claim:
An integrated management system for controlling multi-type air conditioners, comprising: one or more air conditioner systems having one or more air conditioner groups provided with a local controller connected to multi-type air conditioners via a gateway, and configured to detect changes in operation state information related to the one or more air conditioner groups and convert the changed operation state information based on the detected result into operation state information data according to a remote communication protocol for transmission; and a remote integrated management system configured to receive the operation state information data based on the remote communication protocol from the one or more air conditioner systems and remotely control the one or more air conditioner systems based on the received operation state information data, wherein the remote integrated management system includes a database server, and an application server for receiving the changed operation state information, storing the received operation state information in the database server and converting the changed operation state information into operation control data according to a remote communication protocol for transmission, wherein the local controller includes: a collecting module to collect operation state information at specific intervals, and store the operation state information in a FIFO buffer in a first-in, first-out manner, the FIFO buffer including a first buffer to store present operation state information and a second buffer to store previous operation state information, an analyzing module to analyze the operation state information collected by the collecting module based on a comparison of the present operation state information in the first buffer and the previous operation state information in the second buffer, and the analyzing module to detect the changes in the operation state information based on a result of the comparison, and a transmitting module to convert the changed operation state information based on the detected result of the analyzing module into operation state information data according to the remote communication protocol for transmission.