摘要:
A 3D camera (10) for monitoring a spatial zone (12) is provided, wherein the 3D camera (10) has at least one image sensor (14a-b) for taking image data from the spatial zone (10), an evaluation unit (22, 24) for generating a distance image with three-dimensional image data from the image data of the image sensor (14a-b) and an illumination unit (100) with a light source (104) and an upstream microoptical array (106) with a plurality of microoptics (106a) to illuminate the spatial zone (12) with an irregular illumination pattern (20). In this respect, the light source (104) has a semiconductor array with a plurality of individual emitters (104a) and the microoptical array (106) has non-imaging microoptics (106a).
摘要:
An optoelectronic sensor (10) for monitoring a working area (42) is provided, the working area (42) being located within a detection area (20) of the sensor (10) and in a first distance from the sensor (10), wherein the sensor (10) comprises an illumination unit (22) with a light source (24) for at least partially illuminating the working area (42), and an object detection unit (30) for detecting forbidden objects in the working area (42), wherein an illumination control (28) of the illumination unit (22) is configured to, during a startup period, initially activate the illumination unit (28) with a lower power such that a provisional working area (40, 40a-c) in a second distance from the sensor (10) less than the first distance is illuminated at most with a predetermined maximum light output; test whether there is a forbidden object intrusion into the provisional working area (40, 40a-c); and if no forbidden object intrusion is detected, activate the illumination unit (28) with a higher power such that the working area (42) is illuminated at most with the predetermined maximum light output. The illumination control (28) comprises a short range object detection unit (39) configured to test the provisional working area (40, 40a-c) in a different way than the object detection unit (30) tests the working area (42).
摘要:
A hybrid satellite positioning receiver architecture is provided with a first receive path and a second receive path. The first receive path downconverts received satellite positioning signals of a first type to an intermediate frequency range, and the second receive path downconverts received satellite positioning signals of a second type to the same intermediate frequency range.
摘要:
An audio output device is described comprising a speaker; an audio output circuit configured to receive a first audio signal and configured to supply the first audio signal and a second audio signal to the speaker, wherein the second audio signal comprises a higher frequency than the first audio signal; a microphone configured to receive an acoustic signal from the speaker in response to the first audio signal and the second audio signal and to convert the acoustic signal into a received audio signal and a determiner configured to determine a phase of a frequency component of the received audio signal corresponding to the second audio signal and to determine an excursion of the speaker by the first audio signal based on the phase.
摘要:
Method and apparatuses involving satellite position signals are disclosed. Based on data indicating a usage environment, parameters, for example acquisition parameters or calculation parameters, are adapted.
摘要:
A distance-measuring optoelectronic sensor for the monitoring of a working zone is provided which is located within a detection zone of the sensor and at a first distance from the sensor, wherein the sensor has a lighting unit having a light source to illuminate the working zone at least partly as well as an object detection unit by means of which unauthorized objects in the working zone can be detected. In this respect, an illumination control is designed, in a switching-on phase, first to activate the lighting unit with a lower power so that a provisional working zone at a second distance from the sensor less than the first distance is illuminated with at most a preset maximum power; to check by means of the object detection unit whether an unauthorized object intrusion is taking place into the provisional working zone; and if no unauthorized object intrusion is recognized, to activate the lighting unit at a higher power so that the working zone is illuminated with at most the preset maximum power.
摘要:
An optoelectronic sensor (10), in particular a laser scanner, is provided which comprises a light transmitter (12) for transmitting a light beam (16) having a beam profile (28) elongated in a line direction into a monitored plane (26), a light receiver (34) for generating a received signal from the light bream (30) remitted by objects in the monitored plane (26), a movable deflection unit (24) for the periodic deflection of the light beam (16, 30) to scan the monitored plane (26) in the course of the movement and an evaluation unit (42) for detecting the objects with reference to the received signal. The laser scanner has an optical beam rotation element (20) which is disposed after the light transmitter (12) and which can tilt the line direction of a light beam (16) passing through.