This paper introduces three types of concentration-detecting and alarm systems based on the optical, ionizing and penetrating properties of flour dust.
本文根据粉尘的光学性能、电离性能、穿透性能提出了三种不同类型的粉尘浓度检测、报警设备。
In this paper, a constant false alarm rate detection algorithm for optical and infrared small targets in a heavy clutter background is introduced.
介绍了一种强杂波条件下对可见光和红外小目标进行检测的恒虚警率算法。
Traditional method to assess risk for optical imaging reconnaissance satellite is satellite-on-air forecast, and it is simple to operate but has false alarm.
传统评估光学成像侦察卫星的威胁一般是采用卫星临空预报方式，这种方式虽然操作简单，但是必然存在一些虚警现象。
The device comprises an electric source, an alarm part, an acoustic and optical part and an outer shell.
该装置由电源、报警部分、音响灯光部分及外壳组成！
When the device meet the obstacle while moving forward, it can stop and alarm automatically through the image and optical electrical sensors which perform dual identify.
当物流运输装置在前进时遇到障碍时，则采用图像和光电传感器双重识别，使运输装置自动停止，并发出报警信号。
When the device meet the obstacle while moving forward, it can stop and alarm automatically through the image and optical electrical sensors which perform dual identify.
当物流运输装置在前进时遇到障碍时，则采用图像和光电传感器双重识别，使运输装置自动停止，并发出报警信号。
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