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公开(公告)号：US20210396858A1
公开(公告)日：2021-12-23
申请号：US17287769
申请日：2019-10-15
IPC分类号： G01S7/4865 , G01S17/10 , G01S17/931
摘要： A method for determining a distance of an object with the aid of an optical detection apparatus and such an apparatus are described. A light signal pulse is emitted and reflected at the object, and is received as an echo light signal pulse. The echo light signal pulse is divided upon reception into temporally successive discrete reception time windows and converted into corresponding electrical energy. The end of the respective conversion is in each case assigned as the sampling time to the corresponding time window. The electrical energies of the time windows are compared in each case with a threshold value. As soon as the electrical energy of a first reference reception time window is greater than the threshold value, a linear interpolation of the temporal profile of the discrete electrical reception signal is carried out temporally before the sampling time of the first reference time window.
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公开(公告)号：US11994587B2
公开(公告)日：2024-05-28
申请号：US16765328
申请日：2018-11-26
发明人： Jochen Schenk , Michael Kleiser , Frank Selbmann , Jürgen Nies
IPC分类号： G01S17/10 , G01S7/484 , G01S7/4865 , G01S17/931
CPC分类号： G01S17/10 , G01S7/484 , G01S7/4865 , G01S17/931
摘要： In an optoelectronic detection device (1) with at least one optical transmitting unit (3) with an electromagnetic pulse generator (4) for emitting electromagnetic emitted pulses (5), and at least one optical receiver for receiving reflected emitted pulses (7) that provides a reception signal, formed depending on the reflected emitted pulse, to an evaluation device (10), wherein the optical receiver (2) is configured to provide a trigger signal (11) for the control of the optical transmitter (3), an improved compensation of the optoelectronic detection device for errors resulting from temperature or ageing should be achieved. This is achieved in that the optical receiver (2) is configured to provide the trigger signal (11) to the evaluation device (10), the optical transmitter (3) is configured to provide a feedback signal (12) to the evaluation unit (10), wherein the feedback signal (12) corresponds to the time point of the transmission of the transmitted electromagnetic pulse (5) by the electromagnetic pulse generator (4), and the evaluation device (10) is configured to determine the time difference between the trigger signal (11) and the feedback signal (12).
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公开(公告)号：US12055705B2
公开(公告)日：2024-08-06
申请号：US17283835
申请日：2019-10-07
发明人： Jochen Schenk , Michael Kleiser , Jürgen Nies , Frank Selbmann , Felix Müller
IPC分类号： G02B26/08 , B81B3/00 , G01S7/481 , G01S17/931
CPC分类号： G02B26/0841 , B81B3/0018 , B81B2201/045 , G01S7/4817 , G01S17/931
摘要： A method for controlling a drive apparatus (20) of a micro-oscillation mirror (16), a control device (28) and a deflector mirror apparatus (14) are described. The drive apparatus (20) has at least two comb drives (22a, 22b) which are arranged on different radial sides of a pivoting axis (18) of the micro-oscillation mirror (16). In the method, at least two actuation signals AS1, AS2) are generated, and the at least two comb drives (22a, 22b) are therefore actuated at least temporarily in such a way that they drive the micro-oscillation mirror (16) in an oscillating fashion. At least one elongation signal (P1, P2), which characterizes the elongation (26) of the micro-oscillation mirror (16) is generated using at least one comb drive (22a, 22b). At least one of the actuation signals (AS1, AS2) is adapted to the oscillation of the micro-oscillation mirror (16) on the basis of at least one of the elongation signals (P1, P2), At least one of the comb drives (22a, 22b) is connected, by means of at least one switching apparatus (34), alternately to an actuation apparatus (32) for receiving at least one actuation signal (AS1, AS2) or to an elongation-detection apparatus (24) for generating at least one elongation signal (P1, P2).
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公开(公告)号：US20240012152A1
公开(公告)日：2024-01-11
申请号：US18254486
申请日：2021-11-23
发明人： Christoph Parl , Jonas Krause , Frank Selbmann
IPC分类号： G01S17/931 , G01S7/4915
CPC分类号： G01S17/931 , G01S7/4915
摘要： A method for operating a detection device for determining distance variables in which distances characterise objects detected by the detection device is disclosed. From at least one amplitude-modulated electrical send signal at least one scanning signal is generated, which is sent into at least one monitoring region of the detection device. From at least one echo signal of at least one scanning signal reflected in the at least one monitoring region at least one amplitude-modulated electrical receive signal is determined. From at least one electrical send signal and at least one electrical receive signal at least one distance variable is determined. When determining the at least one distance variable at least one adjustment is carried out. A temperature adjustment is carried out in which at least one temperature adjustment variable is applied to at least one distance variable.
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5.发明公开公开(公告)号：US20240345231A1
公开(公告)日：2024-10-17
申请号：US18292575
申请日：2022-07-20
发明人： Jochen Schenk , Juergen Nies , Frank Selbmann , Johannes Appl , Heiko Hofmann
IPC分类号： G01S7/497 , G01S7/481 , G01S7/4863 , G01S17/931
CPC分类号： G01S7/497 , G01S7/4817 , G01S7/4863 , G01S17/931
摘要： A method for operating an optical detection device provided for monitoring at least one monitoring region is disclosed. The method includes actuating at least one light-emitting element to transmit a light signal, receiving at least one reflected light signal using at least two monitoring regions of at least one receiver, and using at least one received light signal to determine at least on receive variable. The eye safety of the detection device is checked by configuring at least one of the receiving regions as a measurement receiving region and at least one of the receiving regions as a test region, generating at least one measurement receive variable that characterizes a quantity of light captured in one measurement time interval, and generating at least one test receive variable that characterizes a quantity of light captured in one test time interval.
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公开(公告)号：US20210382298A1
公开(公告)日：2021-12-09
申请号：US17283835
申请日：2019-10-07
发明人： Jochen Schenk , Michael Kleiser , Jürgen Nies , Frank Selbmann , Felix Müller
摘要： A method for controlling a drive apparatus (20) of a micro-oscillation mirror (16), a control device (28) and a deflector mirror apparatus (14) are described. The drive apparatus (20) has at least two comb drives (22a, 22b) which are arranged on different radial sides of a pivoting axis (18) of the micro-oscillation mirror (16). In the method, at least two actuation signals AS1, AS2) are generated, and the at least two comb drives (22a, 22b) are therefore actuated at least temporarily in such a way that they drive the micro-oscillation mirror (16) in an oscillating fashion. At least one elongation signal (P1, P2), which characterizes the elongation (26) of the micro-oscillation mirror (16) is generated using at least one comb drive (22a, 22b). At least one of the actuation signals (AS1, AS2) is adapted to the oscillation of the micro-oscillation mirror (16) on the basis of at least one of the elongation signals (P1, P2), At least one of the comb drives (22a, 22b) is connected, by means of at least one switching apparatus (34), alternately to an actuation apparatus (32) for receiving at least one actuation signal (AS1, AS2) or to an elongation-detection apparatus (24) for generating at least one elongation signal (P1, P2).
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公开(公告)号：US20190324146A1
公开(公告)日：2019-10-24
申请号：US16461972
申请日：2017-11-13
发明人： Jochen Schenk , Frank Selbmann
摘要： The invention relates to a method for operating an optoelectronic sensor (5) of a motor vehicle (1), in which during a measuring cycle for detecting an object (3), light pulses are emitted using an emitting unit (6) and the light pulses reflected from the object (3) are received using a receiving unit (7), wherein a light source (12) of the emitting unit (6) is activated at determined emission points in time (14) to emit the light pulses and the light pulses are deflected using a deflection unit (13) of the emitting unit (6) within a predetermined angle range (12), wherein the light source (12) is activated in such a way that time intervals between the determined emission points in time (14) differ from one another.
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8.发明授权公开(公告)号：US12123981B2
公开(公告)日：2024-10-22
申请号：US17636294
申请日：2020-08-04
发明人： Jochen Schenk , Michael Kleiser , Jürgen Nies , Frank Selbmann
IPC分类号： G01S7/48 , G01S7/4863 , G01S7/4865 , G01S7/497 , G01S17/10
CPC分类号： G01S7/4865 , G01S7/4863 , G01S7/497 , G01S17/10
摘要： The invention relates to a method for operating an optoelectronic detection device (12) for monitoring at least one monitoring region (14) with optical monitoring signals (34), and to an optoelectronic detection device (12). In the method, at least one first receive start signal (58a) is sent to at least one first receiver (24a), and at least one second receive start signal (58b) is sent to at least one second receiver (24b). In response to the at least one first receive start signal (58a), a receive process which is carried out with the at least one first receiver (24a) is started and at least one first trigger signal (44a) is generated with the at least one first receiver (24a). In response to the at least one second receive start signal (58b), a receive process which is carried out with the at least one second receiver (24b) is started and at least one second trigger signal (44b) is generated with the at least one second receiver (24b). From the at least one first trigger signal (44a) and the at least one second trigger signal (44b), a transmission trigger signal (64) is determined, which corresponds to the later of the at least two trigger signals (44a, 44b) at least in terms of its trigger function. In response to the transmission trigger signal (64), at least one optical monitoring signal (34) is generated with at least one optical transmitter (22).
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9.发明申请公开(公告)号：US20220299611A1
公开(公告)日：2022-09-22
申请号：US17636294
申请日：2020-08-04
发明人： Jochen Schenk , Michael Kleiser , Jürgen Nies , Frank Selbmann
IPC分类号： G01S7/4865 , G01S17/10 , G01S7/4863 , G01S7/497
摘要： The invention relates to a method for operating an optoelectronic detection device (12) for monitoring at least one monitoring region (14) with optical monitoring signals (34), and to an optoelectronic detection device (12). In the method, at least one first receive start signal (58a) is sent to at least one first receiver (24a), and at least one second receive start signal (58b) is sent to at least one second receiver (24b). In response to the at least one first receive start signal (58a), a receive process which is carried out with the at least one first receiver (24a) is started and at least one first trigger signal (44a) is generated with the at least one first receiver (24a). In response to the at least one second receive start signal (58b), a receive process which is carried out with the at least one second receiver (24b) is started and at least one second trigger signal (44b) is generated with the at least one second receiver (24b). From the at least one first trigger signal (44a) and the at least one second trigger signal (44b), a transmission trigger signal (64) is determined, which corresponds to the later of the at least two trigger signals (44a, 44b) at least in terms of its trigger function. In response to the transmission trigger signal (64), at least one optical monitoring signal (34) is generated with at least one optical transmitter (22).
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公开(公告)号：US10656273B2
公开(公告)日：2020-05-19
申请号：US16461972
申请日：2017-11-13
发明人： Jochen Schenk , Frank Selbmann
IPC分类号： G01S17/42 , G01S7/481 , G01S17/931 , G01S7/484 , G01S7/486
摘要： The invention relates to a method for operating an optoelectronic sensor (5) of a motor vehicle (1), in which during a measuring cycle for detecting an object (3), light pulses are emitted using an emitting unit (6) and the light pulses reflected from the object (3) are received using a receiving unit (7), wherein a light source (12) of the emitting unit (6) is activated at determined emission points in time (14) to emit the light pulses and the light pulses are deflected using a deflection unit (13) of the emitting unit (6) within a predetermined angle range (12), wherein the light source (12) is activated in such a way that time intervals between the determined emission points in time (14) differ from one another.
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