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公开(公告)号：US11307023B2
公开(公告)日：2022-04-19
申请号：US16223120
申请日：2018-12-18
申请人： OMRON Corporation
发明人： Yuta Suzuki , Hiroshi Sawaragi , Tomonori Kondo
IPC分类号： G01B11/24 , G05B19/042
摘要： A measurement system and method, which increases a degree of freedom for setting a measurement period and a transmission period of measurement values and has a high accuracy, are provided. The measurement system includes a control device and a measurement device that measures a measurement object in a first period and transmits measurement values obtained from the measurement device to the control device. The measurement device transmits the measurement values waiting to be transmitted and additional information including information of the number of the measurement values waiting to be transmitted to the control device using frames transmitted in a second period that is longer than the first period. The control device generates time series data in which the measurement values are arranged in time series using the additional information.
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公开(公告)号：US11194047B2
公开(公告)日：2021-12-07
申请号：US16162399
申请日：2018-10-17
申请人： OMRON Corporation
发明人： Yosuke Kajii , Kenichi Matoba , Tomonori Kondo
IPC分类号： G01C3/08 , G01S17/32 , G01S7/4913 , G01B11/02
摘要： An optical measurement device includes: a light source, which emits light; a light reception portion, which detects a light reception amount of reflected light reflected on a target; a measurement portion, which measures a distance from the optical measurement device to the target based on the light reception amount of the reflected light; and a detection portion, which detects a portion of the target in which a light reception amount per unit time of the reflected light is smaller than a threshold value.
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公开(公告)号：US10767979B2
公开(公告)日：2020-09-08
申请号：US16248811
申请日：2019-01-16
申请人： OMRON Corporation
发明人： Jun Takashima , Tomonori Kondo
摘要： An error of a measured distance is reduced. An optical measurement device (100) includes: a light source (10), which emits lights; a sensor head (30), which condenses reflected lights reflected by a target (TA); a light reception portion (40), which is configured in a manner that each of a plurality of pixels is capable of detecting a light reception amount, and which obtains a light reception amount distribution signal of each pixel for the condensed reflected lights; a measurement portion (51), which measures a distance from the optical measurement device (100) to the target (TA) based on the light reception amount distribution signal; and a correction portion (52), which corrects the measured distance that is measured based on a predefined characteristic value in a waveform of the light reception amount distribution signal.
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公开(公告)号：US10514294B2
公开(公告)日：2019-12-24
申请号：US15636215
申请日：2017-06-28
申请人： OMRON Corporation
发明人： Yoshihiro Kanetani , Tomonori Kondo , Yuta Suzuki
摘要： The optical measurement apparatus includes an interface unit and a measuring unit. The interface unit is configured to receive a synchronization signal transmitted from a PLC to a fieldbus at a constant communication cycle, and output, in synchronization with the synchronization signal, a result of measurement (a measured value) by the optical measurement apparatus and a synchronization supervisory signal. The measuring unit is configured to execute optical measurement at a measurement cycle irrelevant to the communication cycle and generate a result of the measurement and a synchronization supervisory signal. The measuring unit sets the synchronization supervisory signal into an ON state in synchronization with receipt of the synchronization signal by the interface unit after start of the measurement, and sets the synchronization supervisory signal into an OFF state in synchronization with receipt of the synchronization signal by the interface unit when the interface unit outputs the measurement result.
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公开(公告)号：US10514460B2
公开(公告)日：2019-12-24
申请号：US16005686
申请日：2018-06-12
申请人： OMRON Corporation
发明人： Norihiro Tomago , Tomonori Kondo , Shinya Furukawa
摘要： An optical sensor and an abnormality detection method therefor are provided. The optical sensor includes a light source device that generates light to be irradiated to an object; a light receiving part that receives a reflected light from the object; a branch part that fuses a first optical fiber optically coupled to the light source device and a second optical fiber optically coupled to the light receiving part to join with one end of a third optical fiber facing the object; and a processing part that determines whether junction abnormality occurs at a junction between the third optical fiber and the branch part based on whether an increment in a received light amount detected by the light receiving part with respect to a reference detection amount which is detected in a state of no reflection from the other end of the third optical fiber is within a predetermined range.
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公开(公告)号：US10168422B2
公开(公告)日：2019-01-01
申请号：US15820459
申请日：2017-11-22
申请人： OMRON Corporation
发明人： Tomonori Kondo
摘要： An optical displacement sensor and a system are provided. The optical displacement sensor includes a light projecting unit that projects light onto a workpiece, a light receiving unit that receives light reflected from the workpiece and generates light receiving data, a processing unit that calculates a displacement amount of the workpiece on the basis of the light receiving data, an input unit that receives a timing synchronization signal, and an output unit that outputs the displacement amount calculated by the processing unit. The processing unit controls, in response to the timing synchronization signal received through the input unit, an exposure duration determined by an overlap between a duration during which the light projecting unit projects light onto the workpiece and a duration during which the light receiving unit receives the reflected light. The system includes the optical displacement sensor and a control device that generates the timing synchronization signal.
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公开(公告)号：US10444360B2
公开(公告)日：2019-10-15
申请号：US15893702
申请日：2018-02-12
申请人： OMRON Corporation
发明人： Tomonori Kondo , Yuta Suzuki , Kenichi Matoba
摘要： A displacement measurement device and a measurement method are provided. A displacement measurement device includes a light projecting unit configured to generate a light beam; a sensor head configured to emit the light beam to a measurement target object and receive a light beam reflected at the measurement target surface within the emitted light beam; a storage unit configured to store a function using a distance between the sensor head and the measurement target surface as a variable; and a control unit configured to calculate the distance based on a wavelength of the light received by the sensor head. The control unit calculates a value of the function using a distance between the sensor head and the measurement target surface of the measurement target object as a value of the variable. The control unit corrects the calculated distance using the calculated value of the function.
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公开(公告)号：US10254108B2
公开(公告)日：2019-04-09
申请号：US15413835
申请日：2017-01-24
申请人： OMRON Corporation
发明人： Koji Shimada , Tomonori Kondo
IPC分类号： G01B11/14 , G05B19/042 , G05B19/05
摘要： An optical measurement device configured for connection to an industrial network, the industrial network functioning to synchronize time between a master device and a slave device, the optical measurement device includes: an interface module configured to receive a synchronization signal transmitted on the industrial network from the master device within a fixed communication cycle; and a measurement unit configured to perform optical measurements in a measurement cycle. The measurement unit synchronizes when a measurement is taken with the communication cycle in accordance with the synchronization signal received by the interface module.
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