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发明授权
CN104769399B 用于检测红外线光源的运动的传感器系统 有权

用于检测红外线光源的运动的传感器系统
摘要：
本发明描述一种用于检测在红外线光源(29)的预定运动方向(30)上的运动的传感器系统，其具有至少一对红外线光传感器，所述对红外线光传感器由两个红外线光传感器(4，5；36，37)组成，所述红外线光传感器相对于所述运动方向(30)并排布置，且因此界定传感器覆盖区域(17)，所述传感器覆盖区域通过所述红外线光传感器(4，5；36，37)的末端(16)之间的距离确定，所述红外线光传感器相对于所述运动方向(29)彼此背对并经配置使得在暴露于所述红外线光源(29)期间，所述传感器提供用于检测所述红外线光源(29)的运动的电荷符号是相反的电信号，使得所述信号可被分接，其中所述传感器系统(1)具有在所述红外线光传感器(4，5；36，37)与所述红外线光源(29)之间的窗(7)；且通过此窗所述红外线光源(29)的红外线光可照射于所述红外线光传感器(4，5；36，37)上；且在此窗后方布置所述红外线光传感器(4，5；36，37)；且其布置及其在所述运动方向(29)上的范围根据所述窗(7)的宽度(41)调整，使得在距所述窗(7)的预定限制距离(20)之外，所述红外线光传感器(4，5；36，37)中的每一个具有充分照明区域(22，23)，所述充分照明区域(22，23)界定位置，所述红外线光源(29)从所述位置仅充分照明所述红外线光传感器(4，36或5，37)中的其中一个，其中所述充分照明区域(22，23)在空间上不重叠超出所述限制距离(20)；且所述窗宽度(41)在所述运动方向(29)上小于所述传感器覆盖区域(17)。
摘要（英）：

A sensor system for detecting motion in a predefined direction of motion (30) of an infrared light source (29) has at least one pair of infrared light sensors (4, 5; 36, 37), which are arranged side by side with respect to the direction of motion (30) and, thus, define a sensor coverage zone (17) determined by the distance between distal ends (16) (with respect to the direction of motion) of the infrared light sensors. During exposure to the infrared light source, the sensors provide electrical signals, the charge signs of which are opposite each other, for detecting the motion of the infrared light source (29). The sensor system (1) has a window (7) positioned between the infrared light source (29) and the sensors such that the infrared light of the infrared light source (29) radiates onto the sensors. The sensors are arranged behind the window and are adjusted relative to the width (41) of the window to extend in the direction of motion such that, beyond a predetermined limit distance (20) away from the window, each of the sensors has a full illumination zone (22, 23), which defines the locations from which the infrared light source (29) fully illuminates only one of the sensors (4, 36 or 5, 37). The full illumination zones (22, 23) do not spatially overlap beyond the limit distance (20); and the window width (41) is smaller than the sensor coverage zone (17) in the direction of motion (30).

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