近年来,节点地震采集技术发展迅速,在油气勘探中得到大规模推广应用。相对于有缆地震仪器,节点地震仪在带道能力、排列布设以及施工效率等方面具有显著的优势,但它无法实时获取采集的地震数据,给质量监控和数据评价带来一定困难。如何...近年来,节点地震采集技术发展迅速,在油气勘探中得到大规模推广应用。相对于有缆地震仪器,节点地震仪在带道能力、排列布设以及施工效率等方面具有显著的优势,但它无法实时获取采集的地震数据,给质量监控和数据评价带来一定困难。如何确保节点地震采集质量,保证节点地震仪工作状态良好成为采集施工中的重要环节,即保证设备的稳定性与安全性。结合野外地震采集施工模式和作业流程,介绍了多类型节点质控手机APP及质控数据综合分析平台设计思路,开展了节点通讯、手机定位及导航、节点位置监控、多模式巡检、数据可视化及统计分析等关键技术研究,并基于Visual Studio 2022集成开发环境,采用MVC设计模式研发了多类型节点质控手机APP及质控数据综合分析平台,解决了当前节点质控软件通用性不强,质控数据综合评价分析自动化程度低等问题。在实际生产应用中,软件性能稳定、运行流畅,大幅提高了节点地震仪质控效率及效果,可有效保障节点数据采集质量和资料品质,降低施工成本。展开更多
Wireless visual sensor network (VSN) can be said to be a special class of wireless sensor network (WSN) with smart-cameras. Due to its visual sensing capability, it has become an effective tool for applications such a...Wireless visual sensor network (VSN) can be said to be a special class of wireless sensor network (WSN) with smart-cameras. Due to its visual sensing capability, it has become an effective tool for applications such as large area surveillance, environmental monitoring and objects tracking. Different from a conventional WSN, VSN typically includes relatively expensive camera sensors, enhanced flash memory and a powerful CPU. While energy consumption is dominated primarily by data transmission and reception, VSN consumes extra power onimage sensing, processing and storing operations. The well-known energy-hole problem of WSNs has a drastic impact on the lifetime of VSN, because of the additional energy consumption of a VSN. Most prior research on VSN energy issues are primarily focusedon a single device or a given specific scenario. In this paper, we propose a novel optimal two-tier deployment strategy for a large scale VSN. Our two-tier VSN architecture includes tier-1 sensing network with visual sensor nodes (VNs) and tier-2 network having only relay nodes (RNs). While sensing network mainly performs image data collection, relay network only for wards image data packets to the central sink node. We use uniform random distribution of VNs to minimize the cost of VSN and RNs are deployed following two dimensional Gaussian distribution so as to avoid energy-hole problem. Algorithms are also introduced that optimizes deployment parameters and are shown to enhance the lifetime of the VSN in a cost effective manner.展开更多
在“碳中和、碳达峰”的宏观背景下,建筑工程作为占比最高的碳排放龙头行业,“减碳”意义重大。木结构能够将“碳”锁定在建筑材料中,同时相比于钢筋混凝土、钢结构等建筑结构更具备节能、减排、环保、低造价等多重优势。榫卯连接作为...在“碳中和、碳达峰”的宏观背景下,建筑工程作为占比最高的碳排放龙头行业,“减碳”意义重大。木结构能够将“碳”锁定在建筑材料中,同时相比于钢筋混凝土、钢结构等建筑结构更具备节能、减排、环保、低造价等多重优势。榫卯连接作为我国上千年古建筑传承下来的建筑形式,因其复杂的制备方式与受力形式,近些年渐少出现在新式建筑中。但随着“双碳”背景下木结构形式建筑的增加,在商业文旅、旧城改造和古建筑翻新等重要的建设项目中,榫卯木结构连接会扮演越来越重要的角色。同时,随着新技术的普及,BIM(Building Information Modeling)三维可视化技术作为工具,能够有效衔接设计、生产、施工与运维管养,对关键工艺进行质量把控,对复杂节点进行辅助分析,对重要设备进行数据存储,在未来木结构建筑的推广过程中能够创造难以估量的价值。展开更多
文摘近年来,节点地震采集技术发展迅速,在油气勘探中得到大规模推广应用。相对于有缆地震仪器,节点地震仪在带道能力、排列布设以及施工效率等方面具有显著的优势,但它无法实时获取采集的地震数据,给质量监控和数据评价带来一定困难。如何确保节点地震采集质量,保证节点地震仪工作状态良好成为采集施工中的重要环节,即保证设备的稳定性与安全性。结合野外地震采集施工模式和作业流程,介绍了多类型节点质控手机APP及质控数据综合分析平台设计思路,开展了节点通讯、手机定位及导航、节点位置监控、多模式巡检、数据可视化及统计分析等关键技术研究,并基于Visual Studio 2022集成开发环境,采用MVC设计模式研发了多类型节点质控手机APP及质控数据综合分析平台,解决了当前节点质控软件通用性不强,质控数据综合评价分析自动化程度低等问题。在实际生产应用中,软件性能稳定、运行流畅,大幅提高了节点地震仪质控效率及效果,可有效保障节点数据采集质量和资料品质,降低施工成本。
文摘Wireless visual sensor network (VSN) can be said to be a special class of wireless sensor network (WSN) with smart-cameras. Due to its visual sensing capability, it has become an effective tool for applications such as large area surveillance, environmental monitoring and objects tracking. Different from a conventional WSN, VSN typically includes relatively expensive camera sensors, enhanced flash memory and a powerful CPU. While energy consumption is dominated primarily by data transmission and reception, VSN consumes extra power onimage sensing, processing and storing operations. The well-known energy-hole problem of WSNs has a drastic impact on the lifetime of VSN, because of the additional energy consumption of a VSN. Most prior research on VSN energy issues are primarily focusedon a single device or a given specific scenario. In this paper, we propose a novel optimal two-tier deployment strategy for a large scale VSN. Our two-tier VSN architecture includes tier-1 sensing network with visual sensor nodes (VNs) and tier-2 network having only relay nodes (RNs). While sensing network mainly performs image data collection, relay network only for wards image data packets to the central sink node. We use uniform random distribution of VNs to minimize the cost of VSN and RNs are deployed following two dimensional Gaussian distribution so as to avoid energy-hole problem. Algorithms are also introduced that optimizes deployment parameters and are shown to enhance the lifetime of the VSN in a cost effective manner.
文摘在“碳中和、碳达峰”的宏观背景下,建筑工程作为占比最高的碳排放龙头行业,“减碳”意义重大。木结构能够将“碳”锁定在建筑材料中,同时相比于钢筋混凝土、钢结构等建筑结构更具备节能、减排、环保、低造价等多重优势。榫卯连接作为我国上千年古建筑传承下来的建筑形式,因其复杂的制备方式与受力形式,近些年渐少出现在新式建筑中。但随着“双碳”背景下木结构形式建筑的增加,在商业文旅、旧城改造和古建筑翻新等重要的建设项目中,榫卯木结构连接会扮演越来越重要的角色。同时,随着新技术的普及,BIM(Building Information Modeling)三维可视化技术作为工具,能够有效衔接设计、生产、施工与运维管养,对关键工艺进行质量把控,对复杂节点进行辅助分析,对重要设备进行数据存储,在未来木结构建筑的推广过程中能够创造难以估量的价值。
