摘要:
In various embodiments, a workpiece is processed utilizing one or more output beams emitted from a step-core optical fiber and formed from one or more input beams that may have non-circular beam shapes. In various embodiments, an input beam may be a variable-power laser beam having a laser-beam numerical aperture (NA) that varies as a function of the power of the laser beam. The step-core optical fiber may have an outer core NA that is greater than or equal to the laser-beam NA at a laser power of approximately 100%, an inner core NA that is less than or equal to the outer core NA, and an inner core NA that is greater than or equal to the laser-beam NA at a power of 50%.
摘要:
In various embodiments, the concentration and deposition of siloxane materials within components of laser systems, such as laser resonators, is reduced or minimized utilizing mitigation systems that may also supply gas having low siloxane levels into multiple different components in series or in parallel.
摘要:
In various embodiments, cold-start times and performance of wavelength-beam-combining laser resonators are improved via adjustment of the operating wavelengths and/or temperature of beam emitters within the resonators.
摘要:
A sensing device includes an anchor having a central axis that defines a first radial direction and a second radial direction, and a resonant member flexibly supported by the anchor that includes a main body made of a single-crystal solid. The main body has a first material stiffness in the first radial direction and a second material stiffness in the second radial direction that is less than the first material stiffness. Moreover, the main body has a first component stiffness in the first radial direction and a second component stiffness in the second radial direction that is substantially similar to the first component stiffness. Another sensing device includes a resonant member having a main body that defines an aperture extending through the main body, and an electrode located in the aperture such that a capacitive channel is defined between the electrode and the main body that circumscribes the electrode.
摘要:
A method for facilitating a promotion using autonomous vehicles includes extracting requirements for a promotion activity, collecting first sensor data of the promotion activity on a route of a first autonomous vehicle, and determining whether the promotion activity for which the first sensor data is collected is a valid promotion opportunity. If the promotion activity is determined to be the valid promotion opportunity, when a second autonomous vehicle is determined to be traveling on a route passing by a location of the promotion activity, collecting second sensor data of the promotion activity, and determining, based on the second sensor data and the details of the valid promotion opportunity, whether the second sensor data corresponds to the valid promotion opportunity. When the second sensor data is determined to correspond to the valid promotion opportunity, a promotion is provided to a user interface of the second autonomous vehicle.
摘要:
An image projection system includes an infrared ray projection apparatus that projects a pattern image for shape measurement toward a projection target, an imaging device that captures the pattern image, a calculation device that acquires three-dimensional shape information of the projection target based on the captured pattern image and converts a content image into a projection content image corresponding to the projection target based on the three-dimensional shape information, and a visible light projection apparatus that is disposed in a different position from the infrared ray projection apparatus and projects the projection content image toward the projection target, in which the calculation device, based on images of a visible light image projected by the visible light projection apparatus and a non-visible light image projected by the infrared ray projection apparatus, executes processing of associating each pixel of the non-visible light image with each pixel of the visible light image.
摘要:
The present disclosure relates to the prioritization of devices taking part in a multi-user random access wireless communication. Based on some known conditions, devices that comply with the conditions are given preferential treatment during the random access period. The preferential treatment may refer to the eligible devices being allowed to access more resource units during the random access, or it may also mean faster access to the medium during the random access. By taking advantage of the methods described in the present disclosure, it is possible to assign higher priority to selected frame types and/or device categories in a multi-user random access wireless communication system.
摘要:
A method of the present disclosure comprises obtaining, at a first communication device, channel state information and one or more quality indicators corresponding to the entire bandwidth and/or one or more subbands of an OFDM communication channel; identifying one or more candidate subbands for each second communication device; developing the transmit beamforming matrices for the entire bandwidth and/or each of the one or more candidate subband; selecting, based on the quality indicators a group of second communication devices for uplink multiuser communications, wherein the group includes two or more second communication devices of the plurality of second communication devices; and transmitting respective feedback information to the plurality of second communication devices and respective trigger information to the group of the second communication devices; and receiving simultaneous transmissions from the group of the second communication devices.
摘要:
In a monitoring system, when a monitoring display instruction is received from a smartphone, a master device transmits an image transmission request to a plurality of cameras, each of the cameras transmits image data obtained by an image capturing unit to the master device in response to the image transmission request from the master device, the master device generates a plurality of separate images in order to display images from the plurality of cameras on a single screen in a distributed manner, and transmits image data of a monitoring screen of the plurality of separate images to the smartphone, and the smartphone includes a display/input unit and displays the monitoring screen of the plurality of separate images transmitted from the master device on the display/input unit.
摘要:
In a monitoring system, when a sensor detection information is received from a sensor (human sensor), a master device transmits the sensor detection information to a smart phone, and transmits an image transmission request to a camera (indoor camera) correlated with the sensor, in which the camera transmits video data of a moving image obtained by an image capturing unit to the master device in response to the image transmission request from the master device, in which the master device initially transmits the video data of a moving image from the camera to the smart phone, and in which the smart phone displays a monitoring screen of the moving image transmitted from the master device on the display/input unit.