基于单片机的多功能智能小车的设计

采用80C52单片机为控制核心,利用光电传感器和红外反射式传感器作为探测系统,并且利用PWM技术控制电动小汽车行驶速度的快慢、转弯以及自动停车,设计了一个多功能智能小车。该智能小车可以实现自动寻线行走、自动避障,报警以及遥控等功能。整个系统的电路结构简单,可靠性能高。

Management of nocturnal enuresis-myths and facts

Nocturnal enuresis often causes considerable distress or functional impairment to patient and their parents necessitating a multidisciplinary approach from paediatrician, paediatric nephrologist, urologists and psychiatrist. Mechanisms of monosymptomatic nocturnal enuresis are mainly nocturnal polyuria, bladder overactivity and failure to awaken from sleep in response to bladder sensations. Goal oriented and etiology wise treatment includes simple behavioral intervention, conditioning alarm regimen and pharmacotherapy with desmopressin, imipramine and anticholinergic drugs. Symptoms often recurs requiring change over or combination of different modes of treatment.

机房空调压缩机高压报警问题探析

通过对空调压缩机高压问题的分析,揭示了通常引起压缩机高压报警的原因,即空调膨胀阀设置不当引起的高压报警,并对此提出了相应的预防对策。

低谷电结合储能技术解决夏季空调高压的研究方案

随着全球变暖进程加剧,夏季平均温度持不断上升趋势。同时,行业高速发展促使机房业务量逐年增加,对机房专用空调的挑战越来越大。夏季空调高压告警频繁,维护难度增加,业务设备高温宕机风险逐渐提高。为了解决该问题,迎合国家对节能降耗的号召,方案利用低谷电储能技术制造出为室外机降温的冰块,不仅可以节约电费,而且可以有效解决专用空调高压的问题。