Single-side data point uploading synchronization method based on a 104 protocol communication heterogeneous system

The invention discloses a single-side data point uploading synchronization method based on a 104 protocol communication heterogeneous system. The method comprises the following steps that: a single-side point table function is defined; the substation receives the starting frame and sends a starting confirmation frame to the master station, the substation is started to carry out data transmission after the starting confirmation frame is checked to be correct, the main station side writes a database description file into the received single-side point table, and writes a single-side point table check report; and data point table synchronization processing is performed according to the difference condition. Based on a unilateral data point table uploading method and a data point difference automatic matching function, the load of maintenance personnel is greatly reduced, the working efficiency is improved, meanwhile, the safety and reliability of data synchronization of the centralized control side dispatching m