Télécoms sans Frontières took the data transmitter and laptops it had used to track food aid during a famine in Niger in 2005 and adapted them to store facts about disease prevalence afterwards.
“无国界电讯”通过数据传送机以及手提电脑——他们在2005年发生在尼日尔的饥荒期间就已经用以追踪食品援助——记录下后来爆发的疾病流行的真相。
Powerbeam's solution is to fit a small fluorescent bulb to the receiving device so that a camera on the transmitter can track the light and steer the laser beam accordingly.
Powerbeam公司的方案是为接收设备配备一枚小型荧光灯泡，这样传输器的摄像头就能跟踪光线，并适时引导激光束方向。
However, the Q-track technology does not use signal strength to measure the distance between transmitter and receiver or time of flight like GPS.
然而，在Q -轨道技术不使用信号强度来测量发射器和接收器或飞行如gps时间之间的距离。
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