公开(公告)号：US20150204978A1

公开(公告)日：2015-07-23

申请号：US14593305

申请日：2015-01-09

Applicant: SICK AG

Inventor： Markus HAMMES ,  Martin MUNCHER

IPC: G01S17/08 ,  G01S7/486

CPC classification number: G01S17/08 ,  G01S7/2923 ,  G01S7/4865 ,  G01S7/487 ,  G01S13/10 ,  G01S17/10

Abstract: A distance measuring sensor (10) for a detection and distance determination of objects (18) in a monitoring area, the sensor (10) having a transmitter (12) for transmitting transmission pulses, a receiver (20) for generating a reception signal from transmission pulses remitted from the monitoring area, an A/D converter (38) for digitizing the reception signal, and a control and evaluation unit (28, 30), which is configured to transmit a plurality of transmission pulses via the transmitter (12), to accumulate the respective reception signals generated by the receiver (20) in a histogram (110), and to determine, from the histogram (110), a reception point in time and thus a measurement value for the signal time of flight from the sensor (10) to the object (18), wherein the sensor (10) comprises a noise generator (40) configured to add a noise signal to the reception signal prior to its digitization in the A/D converter (38).

Abstract translation: 一种距离测量传感器（10），用于检测和距离确定监测区域中的物体（18），所述传感器（10）具有用于发送传输脉冲的发射器（12），用于从 从监视区域发送的发送脉冲，用于数字化接收信号的A / D转换器（38），以及控制和评估单元（28,30），被配置为经由发送器（12）发送多个发送脉冲， 在直方图（110）中累积由接收机（20）生成的各个接收信号，并且从直方图（110）中确定接收时间点，从而确定来自该直方图的信号时间的测量值 传感器（10）连接到对象（18），其中传感器（10）包括噪声发生器（40），其被配置为在A / D转换器（38）中数字化之前，将接收信号添加到接收信号。