Quick rendering system using embedded GPU (Graphics Processing Unit) for realizing 3D-GIS (Three Dimensional-Geographic Information System)

Abstract

The invention provides a quick rendering system based on an embedded GPU (Graphics Processing Unit) for realizing 3D-GIS (Three Dimensional-Geographic Information System), aiming at the shortage problem of computing resources existing in a large number of 3D operation conducted on a common embedded platform. The usage of embedded GPU meets the computing resource requirements of an embedded platform including low power consumption, complex calculation and low bandwidth and realizes the quick rendering and display of the 3D-GIS on the embedded platform. The system comprises a server, a GIS database, and a client terminal. The real-time interaction of the client terminal and the server can be realized through a network, and finally the function that 3D maps are displayed on an embedded terminal in real time can be realized through the strong parallel computing ability of the embedded GPU and a 3D rendering algorithm.

Description

1. Technical field [0001] The invention belongs to the field of embedded technology, and in particular relates to a fast rendering system for realizing 3D-GIS maps by using an embedded GPU terminal. 2. Background technology [0002] At present, embedded graphics are applications of two-dimensional graphics, and the most common application examples include small games such as Tetris and Snake. In addition, some embedded devices also support camera saving, sending and receiving operations, which are based on the principle of image codec and graphic display. It will be found that all these graphics applications are still limited to two-dimensional planes. [0003] With the development of integrated circuit technology, some single-chip designs have begun to have the ability to process 3D graphics calculations. Hardware acceleration of 3D graphics is no longer limited to personal computers and workstations, but can also be implemented on embedded systems. In the field of 3D gr...

AI Technical Summary

Problems solved by technology

It is precisely because of these reasons that 3D development on such a platform will inevitably bring about cost increases, and the large amount of 3D calculations will also lead to stretched system resources

The reason why the application of 3D graphics on the embedded platform is very different from the application on the computer is not that there is no need for 3D application on the embedded platform, but that the hardware resources of the embedded system platform are limited. It is almost impossible to complete the modeling and display of more complex 3D models on the platform

Taking the most commonly used mobile device as an example, traditional games and videos use the CPU to perform arithmetic operations, which greatly consumes CPU resources and leads to a bottleneck in the development of embedded multimedia; moreover, embedded technology focuses on low-power Power consumption technology, battery life often seriously affects the performance of embedded devices, a large number of 3D model calculations and bandwidth consumption will inevitably lead to shortened battery life

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