Abstract: Provided are a state transition method and apparatus, a device, and a storage medium. The method includes: an optical network unit verifies a received physical synchronization sequence field, and transitions the current state according to a verification result. As such, the probability of downstream synchronization detection can be effectively improved, and the probability of missed downstream synchronization detection can be reduced, thereby ensuring the normal operation of a PON system.

Abstract: Provided in the embodiments of the present disclosure are a data transmission method and apparatus, and a storage medium and an electronic apparatus. The method includes: synchronization information is sent to an Optical Network Unit (ONU) by an Optical Line Terminal (OLT), so as to allow the ONU to set a function synchronous with the OLT based on the synchronization information; and target management information is encapsulated into a target frame, and the target frame is sent to the ONU on a time slot in which the target frame is allowed to be sent by the OLT.

Abstract: Embodiments of the present disclosure provide an activation method, an activation device, a control device, a network device and an optical network system. A new-system ONU is activated on a first OLT in an existing system, and then activation information of the new-system ONU is sent to a second OLT in a new system by the first OLT or by an activation agent ONU which has been activated on the second OLT, thereby enabling activation of the new-system ONU on the second OLT.

Abstract: The present disclosure provides an Optical Network Unit (ONU) registration method applied to an Optical Network Relay (ONR), including: relaying an interactive content between an Optical Line terminal (OLT) and an ONU, so as to enable the ONU and the OLT to complete discovery and ranging processes. The present disclosure further provides a communication method, an ONR, an OLT, an ONU, an optical communication system, and a computer-readable storage medium.

Abstract: The present application discloses a method and device for generating a jacquard pattern, an electronic device. The method comprises: acquiring structure information of a unit structure of a preform to be prepared, wherein the structure information comprises a positional relationship between the warp yarns and the weft yarns of the unit structure of a preform to be prepared; obtaining a row number and a column number of the jacquard pattern to be generated, and correspondence between each pixel in the jacquard pattern to be generated and the warp yarns and weft yarns of the unit structure of the preform to be prepared, according to the structure information; and obtaining a pixel value of each pixel according to the correspondence and the positional relationship between the warp yarns and the weft yarns, and generating the jacquard pattern to be generated.

Abstract: A method and a device are used for generating a jacquard pattern of a preform. The method comprises acquiring initial structure information of a preform to be prepared; generating an initial jacquard pattern of the preform to be prepared; pixel values of pixels in the initial jacquard pattern, comprising a first pixel value and a second pixel value, are equal to the first pixel value when warp yarns corresponding to the pixels are located above corresponding weft yarns, and are equal to the second pixel value when warp yarns corresponding to the pixels are located below corresponding weft yarns; acquiring yarn reduction information of the preform to be prepared; and adjusting the initial jacquard pattern according to the yarn reduction information to obtain the jacquard pattern of the preform to be prepared.

Abstract: A method and device are used for generating a jacquard pattern. The method comprises: acquiring structure information of a unit structure of a preform to be prepared, the structure information comprises a warp yarn column number, a warp yarn layer number, a weft yarn column number and a weft yarn layer number, a positional relationship between the warp yarns and the weft yarns of the unit structure of a preform to be prepared; obtaining a row number and a column number of the jacquard pattern to be generated, and correspondence between each pixel in the jacquard pattern to be generated and the warp yarns and weft yarns of the unit structure of the preform to be prepared; and obtaining a pixel value of each pixel, and generating the jacquard pattern to be generated.

Abstract: A method and a device are used for generating a jacquard pattern of a preform. The method comprises acquiring initial structure information of a preform to be prepared; generating an initial jacquard pattern of the preform to be prepared; pixel values of pixels in the initial jacquard pattern, comprising a first pixel value and a second pixel value, are equal to the first pixel value when warp yarns corresponding to the pixels are located above corresponding weft yarns, and are equal to the second pixel value when warp yarns corresponding to the pixels are located below corresponding weft yarns; acquiring yarn reduction information of the preform to be prepared; and adjusting the initial jacquard pattern according to the yarn reduction information to obtain the jacquard pattern of the preform to be prepared.

Abstract: Embodiments of the present disclosure provide a method and electronic device for generating a commodity quick response code. The method includes: selecting a quick response code decoder for generating a commodity quick response code; inputting a commodity name, commodity description information and a commodity picture in the quick response code decoder; and clicking a quick response code generation button on the quick response code decoder, and storing a generated commodity quick response code.

Abstract: A videoconference system and a management method thereof are provided. The videoconference system includes: terminals; multipoint control units (MCUs), as the superior level for the terminals, for controlling the corresponding terminals; conference management systems, as the superior level for the MCUs, for performing dispatching and control for the local conference site; and conference coordination systems, as the superior level for the conference management systems, for coordinating corresponding conference management systems and neighboring conference coordination systems to perform dispatching and control for the entire conference.

Abstract: The present invention relates to a three-dimensional woven hollow layer-connecting fabric, comprising an upper layer-surface (10) formed by crossing upper ground warp yarns (1), (2) and a weft yarn (3) and a lower layer-surface (11) formed by crossing lower ground warp yarns (4), (5) and a weft yarn (6); the weft yarns (3) and (6) on the upper and lower layer-surfaces are also crossed with poil warps (7), (8) besides ground warp yarns (1), (2) and (4), (5) on their own layer-surface; the spatial walking direction of poil warps (7), (8) woven from one layer-surface to another is opposite to the weft-inserting direction of the fabric. The framework feature of the composite layer-connecting fabric of the present invention is distinct, and the vertical support function of poil warps between two layer-surfaces is good. The spatial structure of the layer-connecting fabric is varied in conformation, easy to design and adapted to produce on a large scale.

Abstract: The invention discloses a method for calling video communication service by video communication terminal. The method comprises the steps of: (a) a first video communication terminal launches a call to a multipoint control unit (MCU) and sends an conference information needed for convening a conference to the MCU through an In-Band channel established between both sides; (b) the MCU convenes the conference according to the conference information received. The invention also discloses a message data form for transferring information through an In-Band channel in a video communication service. The message data form comprises: a data starting mark field, a data type field, a data length field, a field for no less than one piece of sub-information, a data ending mark field and a cyclic redundancy check field.

Abstract: A videoconference system and a management method thereof are provided. The videoconference system includes: terminals; multipoint control units (MCUs), as the superior level for the terminals, for controlling the corresponding terminals; conference management systems, as the superior level for the MCUs, for performing dispatching and control for the local conference site; and conference coordination systems, as the superior level for the conference management systems, for coordinating corresponding conference management systems and neighboring conference coordination systems to perform dispatching and control for the entire conference.

Abstract: A videoconference system and a management method thereof are provided. The videoconference system includes: terminals; multipoint control units (MCUs), as the superior level for the terminals, for controlling the corresponding terminals; conference management systems, as the superior level for the MCUs, for performing dispatching and control for the local conference site; and conference coordination systems, as the superior level for the conference management systems, for coordinating corresponding conference management systems and neighboring conference coordination systems to perform dispatching and control for the entire conference.

Abstract: The present invention relates to a three-dimensional woven hollow layer-connecting fabric, comprising an upper layer-surface (10) formed by crossing upper ground warp yarns (1), (2) and a weft yarn (3) and a lower layer-surface (11) formed by crossing lower ground warp yarns (4), (5) and a weft yarn (6); the weft yarns (3) and (6) on the upper and lower layer-surfaces are also crossed with poil warps (7), (8) besides ground warp yarns (1), (2) and (4), (5) on their own layer-surface; the spatial walking direction of poil warps (7), (8) woven from one layer-surface to another is opposite to the weft-inserting direction of the fabric. The framework feature of the composite layer-connecting fabric of the present invention is distinct, and the vertical support function of poil warps between two layer-surfaces is good. The spatial structure of the layer-connecting fabric is varied in conformation, easy to design and adapted to produce on a large scale.

Abstract: A videoconference system and a management method thereof are provided. The videoconference system includes: terminals; multipoint control units (MCUs), as the superior level for the terminals, for controlling the corresponding terminals; conference management systems, as the superior level for the MCUs, for performing dispatching and control for the local conference site; and conference coordination systems, as the superior level for the conference management systems, for coordinating corresponding conference management systems and neighboring conference coordination systems to perform dispatching and control for the entire conference.

Abstract: The invention discloses a method for calling video communication service by video communication terminal. The method comprises the steps of: (a) a first video communication terminal launches a call to a multipoint control unit (MCU) and sends an conference information needed for convening a conference to the MCU through an In-Band channel established between both sides; (b) the MCU convenes the conference according to the conference information received. The invention also discloses a message data form for transferring information through an In-Band channel in a video communication service. The message data form comprises: a data starting mark field, a data type field, a data length field, a field for no less than one piece of sub-information, a data ending mark field and a cyclic redundancy check field.