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本文概述了防尾随联动互锁安全门在国内应用的发展过程和现状,分析了该类产品目前的技术状况,针对普遍存在的问题,在设计、制造、安装等技术规范方面提出了建议. 相似文献
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4月13日早晨6时30分左右,成渝高速公路重庆璧山县丁家镇往青杠方向(进重庆方向25.5公里处发生一起车祸,两辆货车相撞后,一车侧翻在路上。在此后一小时内,这起车祸先后引发13起车辆相撞事故。事故造成6人死亡,35人受伤,50多辆车受损,成都至重庆方向交通中断近7小时,5000多辆车出行受阻。 相似文献
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To protect passengers, absorb enough kinetic energy and meet the special requirements for trains which are different from
the other means of transportation, a method is presented to realize the plastic deformation threshold based on three main
aspects of train connection structure, crashworthy vehicle structure, energy-absorbing component. In practical engineering,
trains need enough strength and stiffness to transfer longitudinal force under the normal operation condition, and have to
produce controllable large plastic deformation to absorb energy shortly under the collision condition. To realize the structural
damage threshold of connecting structure in terminal end, two control methods are also proposed which can be divided as the
parametric method based on ‘extrusion’ and ‘cutting’ theories; the method which can cut the connecting components between
coupler-buffer devices and train bodies and separate them away when the damage thresholds of coupler-buffer devices are more
than the pre-supposed damage thresholds. The damage thresholds can be realized based on changing the parameters of the number
of shearing bolts, material parameters, etc. To realize the collision threshold of energy-absorbing components of trains,
a control method is presented based on the ways of setting plastic deformation induced structure, local hole and pre-deformation
structure. To realize the threshold of the controllable plastic structure of energy-absorbing vehicles, a control method is
proposed for the multi-level longitudinal stiffness of train terminal structures. 相似文献
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在遵照执行中华人民共和国公共安全行业标准GA576-2005各项要求的基础上,提高标准要求进行设计开发的一种适用于金融营业场所的机械防盗锁防尾随联动互锁安全门,该产品严格地满足了中华人民共和国公共安全行业标准GA38-2004中有关防尾随联动互锁安全门的使用技术要求。 相似文献
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针对物联网技术在社区管理中的广泛应用,采用嵌入式技术,利用现代高速发展的网络平台设计了一种基于STM32单片机的电梯门禁控制系统。控制系统在电梯控制系统的基础上,结合门禁控制技术、图像识别技术和RFID技术,实现电梯的联网监控、人员使用管理和防尾随等功能。控制系统采用STM32F407作为主控制芯片,搭载μC/OS-II实时操作系统,通过以太网与路由器连接,实现与智慧社区综合管理平台服务器的通讯。通过测试表明,该系统运行稳定,具有广泛的应用前景。 相似文献
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空中交通管制的根本目的就是防止航空器与航空器之间以及航空器与障碍物之间的相撞。随着航空流量的迅猛增长,航空事业的高速发展与略显滞后的保障能力之间的矛盾H益凸显,特别表现在民航与军航的冲突问题上,在目前环境下,如何做好军民航协调工作,争取最大限度地开发和利用空域资源是所有空管人的共同课题。 相似文献