The invention provides an invading foreign matter detection method, device and system, and the method comprises the steps: transmitting at least two beams of ultrasonic waves in a to-be-detected target area, receiving a feedback signal of the ultrasonic waves to obtain an ultrasonic signal, the ultrasonic waves are transmitted through ultrasonic generators, and the signal coding modes of the two different ultrasonic generators are different; converting the ultrasonic signal into a to-be-detected electric signal; the to-be-detected electric signals are compared with preset calibration signals, foreign matter information is determined, and the to-be-detected electric signals obtained from the ultrasonic generators with different signal coding modes are different; and obtaining an alarm signal according to the foreign matter information. The ultrasonic generators and the ultrasonic sensors are arranged in a large area in the railway extension direction, intrusion foreign matter detection is conducted on ultrasonic signals collected by the ultrasonic sensors, and the measurement range is widened.
本发明提供一种侵限异物检测方法、装置和系统,该方法包括对待测目标区域发射至少两束超声波,接收所述超声波的反馈信号得到超声波信号,其中,所述超声波通过超声波发生器发射,相异的两所述超声波发生器的信号编码方式相异;将超声波信号转换成待测电信号;将所述待测电信号与预设标定信号进行对比,确定异物信息,其中,从信号编码方式相异的所述超声波发生器得到的所述待测电信号相异;根据所述异物信息,得到报警信号。通过沿着铁路延伸方向大面积设置超声波发生器和超声波传感器,对各超声波传感器采集的超声波信号进行侵限异物检测,提高测量范围。
Intrusion foreign matter detection method, device and system
侵限异物检测方法、装置和系统
2024-01-26
Patent
Electronic Resource
Chinese
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