Abstract: Embodiments of this application disclose an application layer traffic optimization ALTO protocol-based communication method and a related apparatus. The method includes: An ALTO server sends first information to an ALTO client according to an ALTO protocol, where the first information indicates one or more network services available in a first network, and the first information is used by a first device associated with the ALTO client to obtain the one or more network services. In embodiments of this application, a network service allocation (or network service exposure) interface is provided according to the ALTO protocol. This improves efficiency of system interconnection between an operator and a service provider, reduces difficulty in exposing a network service by the operator, reduces difficulty of network service rollout, and improves timeliness of network service rollout.

Abstract: An unmanned parking space detection method based on a panoramic surround view is provided. The unmanned parking space detection method adopts a Laplace fusion algorithm to splice images to obtain the panoramic surround view, which effectively realize fusion of the images. By using an image quality evaluation function, complexity of the unmanned parking space detection method is reduced while ensuring a quality of the splicing. The panoramic surround view generated by the present disclosure has a more natural transition in the areas being spliced and fused, and the panoramic surround view display is more complete and beautiful. Compared with conventional machine vision detection technologies, the unmanned parking space detection method adopts a target detection technology for detecting parking space entrance lines and adopts a more lightweight network design to ensure real-time performance of a detection algorithm thereof, which has higher detection accuracy and stronger robustness.

Abstract: A backplane, a backlight source, an illumination device and a displaying device. The backplane comprises a substrate; a first metal trace layer disposed on one surface of the substrate; an insulating layer disposed on a side, away from the substrate, of the first metal trace layer; a second metal trace layer disposed on a side, away from the substrate, of the insulating layer, an overlapping area existing between an orthographic projection of the second metal trace layer on the substrate and an orthographic projection of the first metal trace layer on the substrate; and a barrier layer disposed between the first metal trace layer and the second metal trace layer, an orthographic projection of the barrier layer on the substrate covering the overlapping area, and the barrier layer being used for preventing metals in the first metal trace layer and the second metal trace layer from growing towards each other.

Abstract: A light-emitting substrate includes a base, a first conductive pattern layer disposed on the base and a second conductive pattern layer disposed on a side of the first conductive pattern layer away from the base. The first conductive pattern layer includes first signal lines. The second conductive pattern layer includes lamp bead pads. The lamp bead pads include first lamp bead pads and at least one second lamp bead pad. A vertical projection of each first lamp bead pad on the base at least partially overlaps with a vertical projection of a first signal line on the base. A vertical projection of each second lamp bead pad on the base is outside vertical projections of the first signal lines on the base. A distance between a first lamp bead pad and the base is substantially the same as a distance between a second lamp bead pad and the base.

Abstract: The present invention pertains to the use of a polyimide aerogel, wherein the polyimide aerogel comprises polyimide spheres having a diameter of 250 nm to 20 ?m, as an insulating, sorption or filter material, as well as to methods for the preparation of the same.

Abstract: A lattice-based proxy signature method, apparatus and device, a lattice-based proxy signature verification method, apparatus and device, and a storage medium. Polynomials are randomly selected in rings to calculate public and private keys of nodes, and the magnitudes of proxy public and private keys are the same as the magnitudes of public and private keys of an original signer. Therefore, compared with existing proxy signature schemes, the present application has smaller lengths of public and private keys and higher storage efficiency. Proxy signature information generated in the present application shows a signature of the original signer and also shows a signature of a proxy signer. Once a proxy signature is created, the proxy signature cannot be repudiated by the proxy signer, and has strong non-repudiation and strong unforgeability. The proxy signature method has the advantage of resisting quantum computer attack.

Abstract: In a configuration management process, a configuration commission request sent by a client to a server includes an identifier of a specified data source. The server, even if configuration data in a candidate configuration datastore comes from a plurality of data sources, does not commit all configuration data that comes from data sources other than the specified data source in the plurality of data sources to a running configuration datastore. That is, some configuration data that is not expected to be committed is not forced to be committed when configuration data from a data source needs to be committed.

Abstract: A network inspection method comprising obtaining target inspection policy information, where the target inspection policy information indicates the network device to collect inspection result information, and the inspection result information includes first network data and second network data status information; obtaining the inspection result information in response to a case in which the network device meets an inspection trigger condition; sending an inspection report to the network management device for the network management device to determine a network inspection result based on the inspection report, where the inspection report includes the inspection result information.

Abstract: This application discloses a device management method, apparatus, system, and device, and a storage medium. The method includes: obtaining, by a first network device, an extended YANG model file from a second network device, where the extended YANG model file includes a self-explanation tag, and the self-explanation tag is used to label network operation and maintenance data; obtaining the self-explanation tag from the extended YANG model file; and managing the second network device based on the self-explanation tag. The network operation and maintenance data is labeled by using the self-explanation tag. This facilitates device management such as data collection and is not prone to errors, thereby not only achieving relatively high management accuracy, but also improving management efficiency.

Abstract: Embodiments of this application disclose a configuration management method, apparatus, and system, a storage medium, and a program product. In embodiments of this application, a server generates one or more pieces of backup configuration data. Each piece of backup configuration data corresponds to metadata. The metadata comprises baseline indication information and a backup identifier. The baseline indication information indicates whether the corresponding piece of backup configuration data is baseline configuration data. The server receives a network configuration protocol (NETCONF) configuration rollback request sent by a client. The server performs configuration rollback based on the metadata corresponding to the one or more pieces of backup configuration data and the NETCONF configuration rollback request.

Abstract: Embodiments of this application disclose a configuration update method, apparatus, and system, and a computer-readable storage medium, and pertain to the field of communication technologies. In the embodiments of this application, when a specific client performs configuration update on a network device, the client may send a NETCONF configuration request message to the network device without locking a data object; and the network device performs configuration update on the data object if the network device detects that version information, of the data object, respectively recorded by the client and the network device is consistent. Alternatively, the client sends a NETCONF configuration request message to the network device if detecting that version information, of the data object, respectively recorded by the client and the network device is consistent.

Abstract: A device management method includes a first network device sending a first remote procedure call (RPC) request message to a second network device, where the first RPC request message includes information about a third yet another next generation (YANG) module that is identifiable to the first network device. After the second network device switches to the third YANG module, the first network device establishes a control session between the first network device and the second network device based on the third YANG module. When the network device supports switching between YANG modules of different standards, the second network device is notified, by using an RPC, to switch to a YANG module supported by the first network device.

Abstract: An oral cavity restoration space measuring device and method. A depth measuring rod(6) and a main scale(5) are configured to be rigidly connected to each other; a gripping end and a measuring end are connected at a certain angle to reduce a measuring dead angle; a first detachable measuring claw(10) and a second detachable measuring claw(11) are used, and measurements of depth, width and length are integrated; and a digital display meter(4) can rotate around the axis of a connecting rod(9) so as to facilitate the viewing of displayed measurement data.

Abstract: The present disclosure discloses an implanting sleeve with function of axial direction checking, relates to the technical field of oral medical instruments, and has the functions of guiding and axial direction checking. The implanting sleeve comprises a sleeve body which can be detachably disposed on a guide plate, the sleeve body is provided with a center hole center hole which allows an implant drill or an implant to pass through, the sleeve body extends and is provided with an extension arm center hole, and a measurement component used for checking the axial direction of the implant drill or the implant is connected to the side of the extension arm away from the guide plate. Through the arrangement of the center hole center hole, the implant drill is guided, and by using of the measurement component, the axial direction of the drilling needle is simply and quickly checked.

Abstract: Embodiments of this application provide a method for subscribing to event streams. The method includes: A first device generates a first message used to subscribe to event streams, where the first message includes a group identifier, and the group identifier corresponds to a plurality of event streams; and the first device sends the first message to a second device, to obtain data of the plurality of event streams corresponding to the group identifier.

Abstract: A network device obtains computing power information indicating computing power of a compute node corresponding to the network device. The network device generates an application-layer traffic optimization ALTO message that carries the computing power information. The network device sends the ALTO message to a second network device based on an ALTO protocol. This method can improve resource and network utilization and improve user experience.

Abstract: A first server device obtains first device information of the first server device. The first device information may include an event or a device identifier. The first server device determines a first condition corresponding to the first device information of the first server device, and performs a first processing action corresponding to the first device information when determining that the first device information meets the first condition.

Abstract: A data management method, apparatus, device, a computer-readable storage medium, and system are provided. The method is applied to a first network device, the first network device determines target invalid data existing in a second network device, the first network device obtains a first RPC, and the first RPC carries information about target invalid data that needs to be deleted. Then, the first network device sends the first RPC to the second network device, where the first RPC is used to indicate the second network device to delete the target invalid data. In this application, residual data is automatically identified, and the residual data is cleared, to automatically delete the residual data in batches, thereby saving device resources and improving an operation and maintenance management effect.

Abstract: Embodiments of this application disclose a data obtaining method. A first device serving as a network management device may generate a first message including a first keyword. The first message is used to indicate a second device to determine a first path in which the second device stores a parameter determined by the first keyword, and send the first path to the first device. The second device may be a device managed by the first device. Then, the first device may send the first message to the second device. After receiving the first message, the second device may determine the first path in which the second device stores the parameter determined by the first keyword, add the determined first path to a second message, and send the second message to the first device.

Abstract: An embodiment of this application discloses a device management method. A first network management device may obtain subscription parameter information, where the subscription parameter information is used to indicate a subscription parameter used during a process of establishing a first subscription session, and the first subscription session is used to indicate a first network device to send subscription data to a network management device managing the first network device. After the first network management device determines that the first subscription session is interrupted, the first network management device may generate a request message based on the subscription parameter information, and send the request message to a network device managed by the first network management device.