Abstract: The present invention a sparse optimization method based on cross-shaped three-dimensional imaging sonar array, comprising the following steps: first, constructing a beam pattern simultaneously applicable to a near field and a far field based on a cross-shaped array; then, constructing an energy function required by sparse optimization according to the beam pattern; then, introducing an array element position disturbance into a simulated annealing algorithm to increase the degree of freedom of the sparse process and increase the sparse rate of the sparse array, and using the simulated annealing algorithm to sparse optimization of the energy function; finally, after optimization, a sparse optimization cross-shaped array is obtained. The present invention ensures that the three-dimensional imaging sonar system has the desired performance at any distance, and greatly reduces the hardware complexity of the system.

Abstract: A cross-blockchain interaction system comprises: a service consortium chain, a judicial chain, a request client, and an evidence storage server. The request client obtains the processed case content after the case is processed, processes the processed case content to generate a digital abstract, and sends an evidence storage request to the evidence storage server, and the digital abstract is carried in the evidence storage request; the evidence storage server receives the evidence storage request, extracts the digital abstract and sends same to an evidence storage client; the evidence storage client corresponds to a blockchain node of the judicial chain, stores information on the judicial chain, receives the digital abstract, performs evidence storage and returns an evidence storage record ID; and the evidence storage server also returns the evidence storage record ID, the digital abstract, and the case content to an information storage node.

Abstract: The present invention provides an intelligent lighting system, an intelligent vehicle, and an auxiliary vehicle driving system and method thereof. The intelligent lighting system communicates with the vehicle to transmit road condition information data to the vehicle for navigation and/or autonomous driving. In the technical solution of the present invention, lighting equipments are used to collect the road condition information data to the vehicle, to resolve a problem that an intelligent vehicle sensor system has a “visual blind area”, thereby greatly improving navigation accuracy and safety of the intelligent vehicle.

Abstract: Embodiments of present disclosure provide a processing method, a processing apparatus, a user terminal, and a server for recognition of vehicle damage. The method of this disclosure provides a solution for automatically recognizing, on a terminal device, whether a vehicle damage is old damage, making it possible to recognize real-time whether a damage is old damage in photoing or videoing without human intervention, lower the requirement for expertise of the surveyors. Furthermore, information on the recognized suspected old damage may be automatically recorded and transmitted to a designated server system, for example, to insurance company, making it impossible to conceal the fact that the damage has been recognized as old damage even if a surveyor or a malicious user deletes the photograph or video of the old damage. It is possible to effectively reduce the risk of fraud, improve the reliability of damage recognition, improve the reliability of damage evaluation.

Abstract: One or more embodiments of the present specification provide blockchain-based data processing methods and apparatuses that are applied to a blockchain network system that includes a node device of a service platform and a node device of a service provider. The method includes receiving first transaction data by the blockchain node device of the service provider; generating, by the blockchain node device of the service provider, second transaction data, as part of a second transaction, based on the service handling data; and sending, by the blockchain node device of the service provider, the second transaction data to a blockchain network.

Abstract: The present invention provides a method for an optimal scheduling decision of an air compressor group based on a simulation technology, which belongs to the technical field of information.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identity verification are provided. One of methods, implemented by a mobile terminal device, includes: obtaining a device identifier of a service device configured to provide a service based on a digital key; uploading the device identifier to a server in communication with the service device and the mobile terminal device and storing registration information of service devices, to cause the server to perform validity verification on the device identifier; in response to receiving a result indicating the device identifier is valid, collecting identity feature information of a user; uploading the identity feature information of the user to the server, to cause the server to perform identity verification on the user based on the identity feature information; and obtaining the digital key issued by the server in response to the identity verification being successful.

Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing a mutual aid network. One of the methods includes maintaining a particular blockchain specifically for handling requests for aid from a group of members; receiving transaction data encoding user responses to queries from the blockchain network for requesting the user responses regarding a particular request for aid; executing the smart contract using the particular blockchain to process the transaction data; in response to response results indicating that sufficient user responses have been received from the members of the subset of the group, and that a sufficient percentage of the subset of the group have agreed to the particular request for aid, computing an amount of contribution due to each member of the group; and instructing a gateway to trigger the amount of contribution to originate from each member of the group.

Abstract: Implementations of the present specification provide article damage evaluation methods and apparatuses. In one aspect, the method includes: determining, by a terminal device, that a photographing device is in an active state; responsive to determining that the photographing device is in the active state, identifying, from a field of view of the photographing device, a particular surface region of the article that encompasses the damage to the article; obtaining an image of the particular surface region using the photographing device; determining surface structure information and surface material information of the surface region of the article using one or more infrared emitters and one or more infrared receivers; and generating, from the image, the surface structure information, and the surface material information, and based on a predetermined damage evaluation model, an output specifying a degree of the damage to the article.

Abstract: One or more embodiments of the present specification provide blockchain-based data processing methods and apparatuses that are applied to a blockchain network system that includes a node device of a service platform and a node device of a service provider. The method includes sending first transaction data by the blockchain node device of the service platform; obtaining, by the blockchain node device of the service platform, second transaction data where the second transaction data is generated by a blockchain node device of a service provider; checking whether the blockchain node device of the service platform receives the service processing data; executing predetermined service processing data acquisition logic or executing application logic for the service processing data if the blockchain node device of the service platform does not or does, respectively, receive the service processing data.

Abstract: A blockchain-based data processing system may comprise: a transaction-side blockchain node and a server-side blockchain node on a blockchain network maintaining a blockchain. The transaction-side blockchain node may be configured to: create a transaction data structure based on an Unspent Transaction Output (UTXO) model, consolidate transaction data of a transaction according to the transaction data structure to generate shared transaction data, execute a smart contract of the transaction-side blockchain node to automatically determine a to-be-settled commission amount, update the shared transaction data according to the to-be-settled commission amount, collect the updated shared transaction data according to a preset condition, and send a to-be-settled transaction processing request comprising the updated shared transaction data to the server-side blockchain node.

Abstract: Embodiments of this specification disclose systems and methods for automotive part recognition based on a vehicle damage assessment image. A method includes: obtaining a damage assessment image of a target vehicle; obtaining an automotive part list of the target vehicle based on a vehicle identification code of the target vehicle, wherein the automotive part list comprises customized configuration information of automotive parts of the target vehicle; and determining a damaged automotive part of the target vehicle from the damage assessment image based on the customized configuration information of the automotive parts of the target vehicle and an image recognition algorithm, to obtain an automotive part identification serial number of the determined damaged automotive part.

Abstract: Embodiments of this specification disclose a method and an apparatus for automotive part recognition based on a vehicle damage assessment image. The method includes: determining a damaged automotive part of a vehicle by recognizing a damage assessment image of the vehicle based on an image recognition algorithm; obtaining an automotive part list of the vehicle, wherein the automotive part list comprises a plurality of automotive parts corresponding to a plurality of automotive part identification serial numbers; matching the damaged automotive part with the plurality of automotive parts in the automotive part list to determine an automotive part corresponding to the damaged automotive part; and outputting an automotive part identification serial number of the determined automotive part.

Abstract: One or more embodiments of the present specification provide blockchain-based data processing methods and apparatuses that are applied to a blockchain network system that includes a node device of a service platform and a node device of a service provider. The method includes sending first transaction data by the blockchain node device of the service platform; obtaining, by the blockchain node device of the service platform, second transaction data where the second transaction data is generated by a blockchain node device of a service provider; checking whether the blockchain node device of the service platform receives the service processing data; executing predetermined service processing data acquisition logic or executing application logic for the service processing data if the blockchain node device of the service platform does not or does, respectively, receive the service processing data.

Abstract: Provided herein are methods, compositions, devices, and systems for the 3D printing of biomedical implants. In particular, methods and systems are provided for 3D printing of biomedical devices (e.g., endovascular stents) using photo-curable biomaterial inks (e.g., or methacrylated poly(diol citrate)).

Abstract: The present disclosure discloses a preparation method of pressed Scandia-doped dispenser cathode using microwave sintering. Embodiments of the present disclosure include dissolving some nitrates and ammonium metatungstate with deionized water to prepare a homogeneous solution. Precursor powder with uniform size is obtained by spray drying, the precursor powder is decomposed, and two-step reduction may be proceeded to form doped tungsten powder with uniform element distribution. The cathode is prepared by one-time microwave sintering. One-time forming of cathode sintering is realized, and sintering shrinkage and sintering time are reduced significantly. The method has excellent repeatability, and the cathode has a homogeneous structure and excellent emission performance at 950° C.

Abstract: Embodiments of this specification disclose a method and an apparatus for automotive part recognition based on a vehicle damage assessment image. The method includes: determining a damaged automotive part of a vehicle by recognizing a damage assessment image of the vehicle based on an image recognition algorithm; obtaining an automotive part list of the vehicle, wherein the automotive part list comprises a plurality of automotive parts corresponding to a plurality of automotive part identification serial numbers; matching the damaged automotive part with the plurality of automotive parts in the automotive part list to determine an automotive part corresponding to the damaged automotive part; and outputting an automotive part identification serial number of the determined automotive part.

Abstract: Embodiments of this specification disclose systems and methods for automotive part recognition based on a vehicle damage assessment image. A method includes: obtaining a damage assessment image of a target vehicle; obtaining an automotive part list of the target vehicle based on a vehicle identification code of the target vehicle, wherein the automotive part list comprises customized configuration information of automotive parts of the target vehicle; and determining a damaged automotive part of the target vehicle from the damage assessment image based on the customized configuration information of the automotive parts of the target vehicle and an image recognition algorithm, to obtain an automotive part identification serial number of the determined damaged automotive part.

Abstract: Embodiments of the specification provide a method, apparatus, server and terminal device for obtaining a vehicle loss assessment image. The method may include: receiving video data of a damaged vehicle and information of a damaged portion of the damaged vehicle; extracting one or more video images from the video data; classifying the one or more video images into one or more candidate image classification sets of the damaged portion based on the information of the damaged portion; and selecting a vehicle loss assessment image from the one or more candidate image classification sets according to a screening condition.

Abstract: Embodiments of the application provide a method, apparatus, server, and terminal device for obtaining a vehicle loss assessment image. A computer-implemented method for obtaining a vehicle loss assessment image comprises: receiving video data of a damaged vehicle; detecting one or more video images in the video data to identify a damaged portion in the one or more video images; classifying the one or more video images into one or more candidate image classification sets of the damaged portion based on the identified damaged portion; and selecting a vehicle loss assessment image from the one or more candidate image classification sets according to a screening condition.