Up to 16 cameras can be controlled simultaneously ; number of cameras depends upon performance characteristics of associated pc ; analysis functions provide angular , linear , velocity and rotational measurements ; auto - tracking is available with optional xcitex , inc . midas 2 . 0 add - on modules 支持最多16台摄像机进行同步摄像，进行多机拍摄与相连接的计算机性能相关，可提供角度测试线性测试速度测试和转动测试分析功能，配合xcitex公司的软件midas 2 . 0模块实现自动追踪功能
That would be beneficial to hong kong s transport system . these applications include driver information systems to provide up - to - date traffic information and route guidance to drivers , automated tracking , dispatch and weigh - in - motion systems to improve the productivity of commercial and public transport fleets , and a combination of traffic signal control , speed control , lane control and ramp control systems to help alleviate congestion 这些应用项目包括为驾驶者提供最新的交通资讯及路线指引的驾驶资讯系统；可增加商业及公共运输车队生产力的系统、功能包括自动追踪、发送及途中磅重等；以及结合交通灯号控制、速度管制、行车线控制、斜道车流管制等系统，以纾缓挤塞。
4 . a 8 - cascaded wavelength - division - multiplexed fiber bragg grating sensor system was interrogated by changing voltage acting on a employed tunable fabry - perot filter , and a feedback loop was introduced to make filter track the shifted wavelength of the sensor . at the same time an unbalanced scanning michelson interferometer was introduced to demodulate sensor signal 同时为克服查询某一光栅时，应变引起波长漂移导致反射波长偏离f - p透过波长，利用一反馈控制装置，使得滤波器的透过波长自动追踪查询光栅的布一拉格波长，利用非平衡扫描michelson干涉仪对传感信号进行了高分辨率的解调。
