Abstract: A lighting apparatus includes a base plate, a driver module, a light source, a mechanical switch, a main housing, and a manual switch. The driver module is disposed on a top surface of the base plate. The light source is also disposed on the top surface of the base plate. The mechanical switch is disposed on the base plate. The mechanical switch has multiple states to be selected. The driver reads a selected state to control the light source. The main housing encloses the base plate. The manual switch is disposed on the main housing. An operating part of the manual switch is exposed outside the main housing to be operated by a user. When a user moves the operating part of the manual switch, the connecting part of the manual switch carries the mechanical switch to change the selected state.

Abstract: A downlight apparatus includes a driver, a light source, a light holder, a first switch and a second switch. The driver has a power converter and a controller. The light holder is used for fixing the light source. The holder bottom of the light holder defines a light opening. The light source emits a light from the light opening. The light holder is placed in an installation cavity. The rim structure is connected to the holder bottom. The rim structure has a rim edge concealing the installation cavity. The first switch is provided for users to operate to adjust a setting. The second switch is provided for users to operate to adjust the setting. The first switch is concealed in the installation cavity. The second switch is placed on the rim edge exposed outside the installation cavity. The first switch and the second switch are coupled to the controller.

Abstract: A method for processing a plurality of queries is provided according to embodiments of the present disclosure. In this method, based on a plurality of queries and an execution plan for the plurality of quires, a plurality of record identification (ID) numbers can be stored into a pool in a numerical order. Each of the plurality of record ID numbers can identify a data record in a database. Then, the execution plan can be performed to batch a plurality of data records corresponding to the plurality of record ID numbers in the database based on a distribution of the plurality of record ID numbers in the pool.

Abstract: Embodiments of the present disclosure provide a method and device for selecting a context model of a quantized coefficient end flag. The method comprises: obtaining a scanning position POS of a non-zero coefficient corresponding to current quantized coefficient end flag in a specific scanning order; wherein the scanning position POS is a subscript of the non-zero coefficient in the scanning order; configuring a first context model array, and using a fixed value as the base to calculate the logarithmic value of the value of the scanning position POS plus 1, and according to the logarithmic value, selecting a first context model from the first context model array; and using the first context model to encode or decode a binary symbol of the current quantized coefficient end flag. According to the technical solution of the present application, it is able to improve encoding and decoding efficiency for a quantized coefficient end flag, thereby further improve the efficiency of video encoding and decoding.

Abstract: The downlight apparatus includes a surface rim, a rotation bracket, a bowl housing and a light source. The surface rim has an rim edge and a lateral wall. The rotation bracket includes a bracket body and two arms. Each arm has an arm bottom and a arm top. The rotation bracket is attached to the lateral wall. The bowl housing has a bowl edge. The bowl edge defines a light opening. The arm tops of the two arms are attached to the bowl edge. The bowl housing is rotatable with a tilt angle with respect to the arm tops. The light source is mounted inside the bowl housing for emitting a light from the light opening.

Abstract: A tracking measurement method, apparatus and device for a pose of a tail end of a manipulator. The method comprises: shooting a first calibration board mounted at the tail end of the manipulator by a monocular measurement camera, acquiring multiple sets of first transformation matrices, and mounting the monocular measurement camera on a pitch axis of a pan-tilt; shooting a second calibration board by a global camera, and acquiring multiple sets of second transformation matrices; when a calibration center of the first calibration board is in a center of a field of view of the monocular measurement camera, calculating a measured pose of the tail end of the manipulator; and when the calibration center of the first calibration board deviates from the center of the field of view of the monocular measurement camera, calculating a direction deviation angle, and adjusting the pitch axis and a horizontal axis of the pan-tilt.

Abstract: Provided are an optical system and a wearable augmented reality display device. The optical system includes: an image projection assembly configured to emit image light; a first optical assembly configured to reflect and transmit the image light emitted by the image projection assembly; a second optical assembly configured to reflect the image light reflected from the first optical assembly and transmit light from a real scene; and a stray light suppression member disposed between the image projection assembly and the first optical assembly and adjacent to a position above an effective reflection surface of the second optical assembly, the stray light suppression member being configured to block light reflected from the first optical assembly to a central region above the reflection surface of the second optical assembly, and/or to block light directly transmitted from the image projection assembly to two side regions above the reflection surface.

Abstract: A near-to-eye display optical system includes a display assembly, an optical filter, a first optical assembly, and a second optical assembly. The display assembly is configured to emit light rays having image information. The optical filter is configured to transmit the light rays whose emergent angles meet a preset transmission condition and shield the light rays whose emergent angles do not meet the preset transmission condition. The first optical assembly is configured to receive and reflect the light rays transmitted through the optical filter, wherein the optical filter is disposed between the display assembly and the first optical assembly. The second optical assembly is configured to receive the light rays reflected by the first optical assembly and reflect the light rays to the first optical assembly. The present application further provides an optical filter and a near-to-eye display device.

Abstract: Disclosed is a gas insulated substation cabinet for precise air supply control, comprising: cabinet doors arranged at one side of a cabinet body, a sealing mechanism arranged between a frame of the cabinet doors and a frame of the cabinet body, a supporting mechanism arranged in the cabinet body, a plurality of guiding mechanisms fixedly connected with the cabinet body inside along a vertical direction at equal intervals, electronic components respectively arranged in the guiding mechanisms, an air inlet device including a communicated pipeline, an air inlet mechanism on a top of communicated pipeline, an external air conditioner, and a filter mechanism at a bottom of the communicated pipeline, an air collecting device arranged at a bottom of an inner cavity of the cabinet and two air outlet devices respectively arranged on both sides of a bottom of the cabinet body.

Abstract: Provided are an AR display method, an AR display apparatus and an AR display device, the device including: a display assembly used for displaying a virtual content, an optical assembly, and a micro mirror array coupled to the optical assembly; the micro mirror array is located on a propagation path of light emitted from the display assembly.

Abstract: A caller identification display method includes a terminal device sending a first request to a server of a first application, where the first request is used by the terminal device to subscribe to a first service. After receiving the request sent by the terminal device, the server of the first application sends a first response to the terminal device. The server of the first application sends a first number to the terminal device. The terminal device obtains an association relationship between the first number and the first application. When the terminal device makes a call or receives an incoming call, the terminal device displays a first call interface, where the first call interface includes prompt information, and where the prompt information includes the association relationship between the first number and the first application.

Abstract: A caller identification display method includes a terminal device sending a first request to a server of a first application, where the first request is used by the terminal device to subscribe to a first service. After receiving the request sent by the terminal device, the server of the first application sends a first response to the terminal device. The server of the first application sends a first number to the terminal device. The terminal device obtains an association relationship between the first number and the first application. When the terminal device makes a call or receives an incoming call, the terminal device displays a first call interface, where the first call interface includes prompt information, and where the prompt information includes the association relationship between the first number and the first application.

Abstract: An optical system includes a reflecting-mirror group having a focal-power reflecting face and a free-form-surface-prism group. the latter includes an imaging prism. The focal-power reflecting face of the reflecting-mirror group is configured to reflect part of incident light ray to a first light entering face of the imaging prism. The first light entering face is configured to transmit part of the incident light ray to a second light entering face of the imaging prism. The second light entering face is configured to reflect part of light ray from the first light entering face to a third light entering face of the imaging prism. The third light entering face is configured to reflect part of light ray from the second light entering face to a light exiting face of the imaging prism. An intermediate imaging plane is formed in an optical path before the third light entering face.

Abstract: Provided are an AR display method, an AR display apparatus and an AR display device, the device including: a display assembly used for displaying a virtual content, an optical assembly, and a micro mirror array coupled to the optical assembly; the micro mirror array is located on a propagation path of light emitted from the display assembly.

Abstract: A method for a hypervisor supported by a source host to implement a port mirroring session in a virtualized computing environment includes receiving a packet passing through a first virtual port supported by the source host, wherein the packet is destined for a destination virtual machine on a destination host. The method also includes based on a first media access control (MAC) address of a first virtual network interface controller (VNIC) associated with a first monitoring virtual machine (VM), obtaining a first IP address associated with a first host that supports the first VNIC and the first monitoring VM, generating a port mirroring packet with the first IP address and a mirrored copy of the packet, wherein the port mirroring packet comprises a first Generic Network Virtualization Encapsulation (Geneve) base header, which includes the first MAC address, and transmitting the port mirroring packet to the first host.

Abstract: Some embodiments provide a system for lossless packet monitoring in a virtualized. The system, using a virtual tap, intercepts packets from a data compute node operating on a host machine, between the data compute node (DCN) and a managed forwarding element on the host. As part of the lossless packet mirroring, the virtual tap forwards data files related to the mirrored packets to a traffic monitoring. The traffic monitoring application stores the data received from the virtual tap and is capable of performing analytics on the stored data. In some embodiments, the system also includes a central controller that communicates with the other elements of the system to manage the traffic monitoring.

Abstract: A method for a hypervisor supported by a source host to implement a port mirroring session in a virtualized computing environment includes receiving a packet passing through a first virtual port supported by the source host, wherein the packet is destined for a destination virtual machine on a destination host. The method also includes based on a first media access control (MAC) address of a first virtual network interface controller (VNIC) associated with a first monitoring virtual machine (VM), obtaining a first IP address associated with a first host that supports the first VNIC and the first monitoring VM, generating a port mirroring packet with the first IP address and a mirrored copy of the packet, wherein the port mirroring packet comprises a first Generic Network Virtualization Encapsulation (Geneve) base header, which includes the first MAC address, and transmitting the port mirroring packet to the first host.

Abstract: A method for a hypervisor supported by a source host to implement a port mirroring session in a virtualized computing environment includes receiving a packet passing through a first virtual port supported by the source host, wherein the packet is destined for a destination virtual machine on a destination host. The method also includes based on a first media access control (MAC) address of a first virtual network interface controller (VNIC) associated with a first monitoring virtual machine (VM), obtaining a first IP address associated with a first host that supports the first VNIC and the first monitoring VM, generating a port mirroring packet with the first IP address and a mirrored copy of the packet, wherein the port mirroring packet comprises a first Generic Network Virtualization Encapsulation (Geneve) base header, which includes the first MAC address, and transmitting the port mirroring packet to the first host.

Abstract: A method for a hypervisor supported by a source host to implement a port mirroring session in a virtualized computing environment includes receiving a packet passing through a first virtual port supported by the source host, wherein the packet is destined for a destination virtual machine on a destination host. The method also includes based on a first media access control (MAC) address of a first virtual network interface controller (VNIC) associated with a first monitoring virtual machine (VM), obtaining a first IP address associated with a first host that supports the first VNIC and the first monitoring VM, generating a port mirroring packet with the first IP address and a mirrored copy of the packet, wherein the port mirroring packet comprises a first Generic Network Virtualization Encapsulation (Geneve) base header, which includes the first MAC address, and transmitting the port mirroring packet to the first host.

Abstract: Some embodiments provide a system for lossless packet monitoring in a virtualized. The system, using a virtual tap, intercepts packets from a data compute node operating on a host machine, between the data compute node (DCN) and a managed forwarding element on the host. As part of the lossless packet mirroring, the virtual tap forwards data files related to the mirrored packets to a traffic monitoring. The traffic monitoring application stores the data received from the virtual tap and is capable of performing analytics on the stored data. In some embodiments, the system also includes a central controller that communicates with the other elements of the system to manage the traffic monitoring.