平仓振捣机计时报警器的研制与应用

计时报警器由超声波测距传感器、集成式仪表主机、报警指示灯、连接线缆、配套软件和控制电路等组成，安装于平仓振捣机振捣横梁上，通过对各种不同类别混凝土振捣时间的计量，对欠时和超时进行提示报警，显示振捣深度和次数等相关数据，以达到规范振捣操作、为施工管理提供依据。

一种新型便捷式留置针的设计与应用

目的:探讨新型便携式留置针的临床应用效果。方法:选取2020年7月—2020年12月医院就诊的住院病人120例作为研究对象,随机分为对照组和观察组各60例,对照组使用普通留置针,观察组使用新型便携式留置针。对两组记录留置针日期所需时间、追踪管理时间、敷贴出现卷边的情况、病人满意度进行比较。结果:观察组记录留置针留置日期所需时间、追踪管理时间明显短于对照组(P<0.05);观察组敷贴出现卷边发生率明显低于对照组(P<0.05);观察组病人满意度明显高于对照组(P<0.05)。结论:新型便携式留置针实现了记录留置针留置时间的智能化操作,还有效避免了置管时间超时或者留置针敷贴出现卷边、脱落的情况,提高了病人的就医体验,提高了护理工作效率。

Design of intelligent transformer monitoring system based on GSM

This paper proposes a method for transformer fault detection system based on GSM network, through the current transformer, voltage sensor information, the known fault information attribute conditions, and the feedback weighted coefficient through the adaptive feed forward, that can obtain high fault information attributes, thus filtering interference factors and timely get fault information properties. It solves the traditional transformer can only judge general fault and fault real-time alarm by GSM network, the system also can measure the transformer oil temperature and oil temperature alarm in super high temperature, to detect the power transformer operation parameters, and the fault running state （over-current, over-voltage, under-voltage, warning）. The actual test system show that, diagnosis ability of fault signal separation ability and small signal identification increases 17%. also meet the requirements of real-time.