Thermodynamic diagram generation method, device and system

The invention relates to a thermodynamic diagram generation method, device and system. The thermodynamic diagram generation method is applied to a server, and comprises the following steps: generating a two-dimensional thermodynamic grey-scale map according to a two-dimensional point data set; dividing the two-dimensional thermodynamic grey-scale map into a plurality of sub-images, and distributing the sub-images to one-to-one corresponding rendering nodes for rendering; and combining the plurality of rendered sub-images to obtain a two-dimensional thermal rendering graph. According to the method, the jamming phenomenon caused by limited computing power of the client is relieved by utilizing the advantage that the server is high in large data volume processing capacity, and meanwhile, the two-dimensional thermal grey-scale map generated by the server is distributed to each rendering node by utilizing the advantage that the server comprises a plurality of rendering nodes, so that the purpose of load balancing