本文介绍一种基于微信小程序和LBS(Location Based Service)的自助导游语音播报系统的研究和实现。这个系统的主要功能是针对首次进入校园或对校园不太熟悉的,又希望可以深度了解校园的游客,他们可以使用本设计进行自动定位,地点搜索、...本文介绍一种基于微信小程序和LBS(Location Based Service)的自助导游语音播报系统的研究和实现。这个系统的主要功能是针对首次进入校园或对校园不太熟悉的,又希望可以深度了解校园的游客,他们可以使用本设计进行自动定位,地点搜索、路线规划匹配、语音文字解说等,语音文字解说又可以分广播模式和点播模式。本设计以华南理工大学广州学院为试点对象实践。展开更多
Methods of improving seismic event locations were investigated as part of a research study aimed at reducing ground control safety hazards. Seismic event waveforms collected with a 23-station three-dimensional sensor ...Methods of improving seismic event locations were investigated as part of a research study aimed at reducing ground control safety hazards. Seismic event waveforms collected with a 23-station three-dimensional sensor array during longwall coal mining provide the data set used in the analyses. A spatially variable seismic velocity model is constructed using seismic event sources in a passive tomographic method. The resulting three-dimensional velocity model is used to relocate seismic event positions. An evolutionary optimization algorithm is implemented and used in both the velocity model development and in seeking improved event location solutions. Results obtained using the different velocity models are compared. The combination of the tomographic velocity model development and evolutionary search algorithm provides improvement to the event locations.展开更多
文摘本文介绍一种基于微信小程序和LBS(Location Based Service)的自助导游语音播报系统的研究和实现。这个系统的主要功能是针对首次进入校园或对校园不太熟悉的,又希望可以深度了解校园的游客,他们可以使用本设计进行自动定位,地点搜索、路线规划匹配、语音文字解说等,语音文字解说又可以分广播模式和点播模式。本设计以华南理工大学广州学院为试点对象实践。
文摘Methods of improving seismic event locations were investigated as part of a research study aimed at reducing ground control safety hazards. Seismic event waveforms collected with a 23-station three-dimensional sensor array during longwall coal mining provide the data set used in the analyses. A spatially variable seismic velocity model is constructed using seismic event sources in a passive tomographic method. The resulting three-dimensional velocity model is used to relocate seismic event positions. An evolutionary optimization algorithm is implemented and used in both the velocity model development and in seeking improved event location solutions. Results obtained using the different velocity models are compared. The combination of the tomographic velocity model development and evolutionary search algorithm provides improvement to the event locations.
