Sensor-Based Seismic Performance and Safety Enhancement of Elevators in Buildings

该项目将研究使用光纤传感器进行健康监测、连续数据收集以及基于传感器的电梯运行控制，以确保在地震和恐怖主义引发的紧急事件等异常事件期间的安全和性能改善。将进行分析和实验研究。几个专门为此任务开发的法布里-珀罗干涉传感器将安装在配重和轿厢的导轨系统上。动态传感器信息将用于做出关于电梯的操作的决定。还将开发用于温度测量的光纤传感器，以在火灾引发的紧急情况下帮助救援行动。所有传感器将被多路复用。 将开发用于大量光学传感器的有效多路复用的新技术。 实验装置将用于验证传感器和数据采集和处理系统的有效性。 完成后的系统将能够收集在未来发生地震时非常有用的技术数据。 一个基于传感器的鲁棒控制方案将被开发用于电梯的操作控制。 控制方案将基于电梯-建筑物系统的动态特性，并将包括与地面运动相关的不确定性、系统参数的不确定性和传感器系统的可靠性

The project will study the use of fiber optic sensors for health monitoring, for continuous data collection, and for sensor-based operational control of the elevator movements to ensure safety and improved performance during earthquakes and during abnormal events such as a terrorist-induced emergencies. Both analytical and experimental studies will be conducted. Several Fabry-Perot Interferometric sensors, especially developed for this task, will be installed on the guide rail system of the counterweight and the car. The dynamic sensor information will be used to make a decision about the operation of the elevators. The fiber optic sensors for temperature measurements will also be developed to aid the rescue operations in case of fire-induced emergencies. All sensors will be multiplexed. New technology for effective multiplexing of a large number of optical sensors will be developed. Experimental setup will be used to verify the effectiveness of the sensor and data acquisition and processing systems. The completed system will be able to collect technical data of much use during future earthquake occurrences. A sensor-based robust control scheme will be developed for operational control of the elevators. The control scheme will be based on the dynamic characteristics of the elevator-building systems and would include the uncertainties associated with the ground motion, uncertainties in the system parameters, and reliability of the sensor system