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设施园艺作物生长信息智能化检测装备的创新设计 被引量:5
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作者 李惠玲 张晓东 +3 位作者 李苇 申婷婷 黄健荣 朱寒豹 《现代农业装备》 2020年第5期30-35,41,共7页
设施园艺智能化装备技术是现代设施农业发展的迫切需要。温室作物生长信息智能化监测装备能够对作物的营养、长势和环境信息进行综合监测,为温室的水肥和环境优化调控提供科学依据,是设施园艺智能化的关键装备,本研究针对不同生长阶段... 设施园艺智能化装备技术是现代设施农业发展的迫切需要。温室作物生长信息智能化监测装备能够对作物的营养、长势和环境信息进行综合监测,为温室的水肥和环境优化调控提供科学依据,是设施园艺智能化的关键装备,本研究针对不同生长阶段和不同株形作物的检测需求以及温室非结构化环境的作业需要,开发了能够在温室内自主巡航的轮式和履带式作物生长及环境信息监测系统;同时,为了满足大株型作物的检测需求,还开发了悬轨式作物生长和环境信息检测系统,该系统将多传感检测系统通过云台悬挂安装在温室桁架内的回旋轨道上,由于检测位置较高,能够对黄瓜、番茄等较大株型的温室作物实现定时巡航生长监测。为了实现作物生长信息的全面探测,研发了园艺作物信息多传感检测系统,利用可见光—近红外双目多光谱相机、红外探测传感器、激光测距传感器以及环境温湿度和光照传感器等仪器设备,通过多传感信息融合,实现了设施园艺作物营养、长势和环境信息的综合监测,取得了较好的应用效果。 展开更多
关键词 设施园艺 生长信息 智能检测 多传感检测系统 信息融合
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Research on the Strategy of Underwater United Detection Fusion and Communication Using Multi-sensor
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作者 Zhenhua Xu Jianguo Huang Hai Huang Qunfei Zhang 《Journal of Marine Science and Application》 2011年第3期358-363,共6页
In order to solve the distributed detection fusion problem of underwater target detection, when the signal to noise ratio (SNR) of the acoustic channel is low, a new strategy for united detection fusion and communicat... In order to solve the distributed detection fusion problem of underwater target detection, when the signal to noise ratio (SNR) of the acoustic channel is low, a new strategy for united detection fusion and communication using multiple sensors was proposed. The performance of detection fusion was studied and compared based on the Neyman-Pearson principle when the binary phase shift keying (BPSK) and on-off keying (OOK) modes were used by the local sensors. The comparative simulation and analysis between the optimal likelihood ratio test and the proposed strategy was completed, and both the theoretical analysis and simulation indicate that using the proposed new strategy could improve the detection performance effectively. In theory, the proposed strategy of united detection fusion and communication is of great significance to the establishment of an underwater target detection system. 展开更多
关键词 detection fusion likelihood ratio test(LRT) Neyman-Pearson (NP) low signal to noise ratio
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