设计基于差分定位(Differential Global Position System,DGPS)与4G网络的储煤场车辆管理云平台系统。以STM32F407为主处理器,在DGPS与4G网络的基础上,设计实现多功能终端的软件系统;利用Java技术,开发车辆管理平台远程软件系统;多功能...设计基于差分定位(Differential Global Position System,DGPS)与4G网络的储煤场车辆管理云平台系统。以STM32F407为主处理器,在DGPS与4G网络的基础上,设计实现多功能终端的软件系统;利用Java技术,开发车辆管理平台远程软件系统;多功能终端能够实时获取差分定位信息,实现车辆信息查询以及本地呼叫等功能;远程车辆管理平台能够监督储煤场内车辆的位置、车辆状况等,并将信息转发到各终端。测试结果表明:系统稳定、定位精度高、网络传输能力强,能够应对储煤场复杂车辆管理的需求。展开更多
People's Republic of China is one of the most rapidly developing countries in the world today. There is a great demand on highly actual and accurate spatial information of the whole country, especially of West Chi...People's Republic of China is one of the most rapidly developing countries in the world today. There is a great demand on highly actual and accurate spatial information of the whole country, especially of West China which becomes the focus of development of the Chinese government right now and in the next years, but where still not enough topographic maps are available. This raises great challenges to the surveying and mapping community in China. Facing the new challenges the Chinese Academy of Surveying and Mapping (CASM) started its pioneer work early 2002 to explore new techniques and technologies available today toward increasing the map productivity. With import of a CCNS/AEROcontrol system in November 2002, the first DGPS/IMU-based photogrammetric project in China was successfully accomplished jointly by CASM, the Germany-based companies IGI and Techedge. Two photogrammetric blocks of 1:4, 000 and 1:20,000 photo scales, respectively, were flown in Anyang, China. Direct georeferencing and integrated sensor orientation were conducted. Results achieved were proven by using ground checkpoints and compared with those of aerial triangulation. Orthophotos generated based on direct georeferencing shows the high efficiency and quality, and thus proved the promise of the new technology. Furthermore several DGPS/IMU-based photogammetric projects was accomplished one by one and a big project of more than 100, 000 km2 in the Inner Mongolia will be started in August 2003. The paper presents experiences with DGPS/IMU-based photogrammetry in China. Results achieved in concrete projects are shown and evaluated. Politic and technical specialties in China are discussed. Conclusions outline the potential of DGPS/IMU-based photogrammetric production in China.展开更多
文摘设计基于差分定位(Differential Global Position System,DGPS)与4G网络的储煤场车辆管理云平台系统。以STM32F407为主处理器,在DGPS与4G网络的基础上,设计实现多功能终端的软件系统;利用Java技术,开发车辆管理平台远程软件系统;多功能终端能够实时获取差分定位信息,实现车辆信息查询以及本地呼叫等功能;远程车辆管理平台能够监督储煤场内车辆的位置、车辆状况等,并将信息转发到各终端。测试结果表明:系统稳定、定位精度高、网络传输能力强,能够应对储煤场复杂车辆管理的需求。
文摘People's Republic of China is one of the most rapidly developing countries in the world today. There is a great demand on highly actual and accurate spatial information of the whole country, especially of West China which becomes the focus of development of the Chinese government right now and in the next years, but where still not enough topographic maps are available. This raises great challenges to the surveying and mapping community in China. Facing the new challenges the Chinese Academy of Surveying and Mapping (CASM) started its pioneer work early 2002 to explore new techniques and technologies available today toward increasing the map productivity. With import of a CCNS/AEROcontrol system in November 2002, the first DGPS/IMU-based photogrammetric project in China was successfully accomplished jointly by CASM, the Germany-based companies IGI and Techedge. Two photogrammetric blocks of 1:4, 000 and 1:20,000 photo scales, respectively, were flown in Anyang, China. Direct georeferencing and integrated sensor orientation were conducted. Results achieved were proven by using ground checkpoints and compared with those of aerial triangulation. Orthophotos generated based on direct georeferencing shows the high efficiency and quality, and thus proved the promise of the new technology. Furthermore several DGPS/IMU-based photogammetric projects was accomplished one by one and a big project of more than 100, 000 km2 in the Inner Mongolia will be started in August 2003. The paper presents experiences with DGPS/IMU-based photogrammetry in China. Results achieved in concrete projects are shown and evaluated. Politic and technical specialties in China are discussed. Conclusions outline the potential of DGPS/IMU-based photogrammetric production in China.
