50results about How to "Expand the scope of application scenarios" patented technology

The invention provides an electroluminescent element driving circuit, a driving method thereof and a display device. The electroluminescent element driving circuit comprises a first switch tube and ischaracterized by further comprising at least two driving circuit units, wherein the driving circuit units are mutually connected in parallel, the driving circuit units are connected with a first electrode of the first switch tube, a grid electrode of the first switch tube is connected with a turn-on control signal, a second electrode of the first switch tube is connected with an anode of an electroluminescent element, and a cathode of the electroluminescent element is connected with a first potential terminal; and the driving circuit units are used for driving the electroluminescent element to emit light according to a write-in data signal. The driving circuit can realize simultaneous and concurrent driving of the at least two driving circuit units for the electroluminescent element, thereby increasing the variation range of driving current of the electroluminescent element, thus increasing the brightness adjustment range of the electroluminescent element, and expanding the application scenario range of an organic electroluminescent display product adopting the driving circuit.

The invention provides a micro-module data center with closed cold and hot channels and an implementation method thereof, belonging to the field of data centers. It includes two rows of cabinets arranged side by side. The front door of the front cabinet group is set opposite to the front door of the rear cabinet group, forming a closed cold aisle together with the skylight and the cold aisle door. The back doors of the rows of cabinet groups are set opposite to each other, and each row of cabinet groups forms a closed hot aisle together with the top sealing plate of the hot aisle, the sealing side plate of the hot aisle and the support member of the hot aisle. The invention simultaneously seals the hot and cold channels, which is beneficial to the centralized treatment of the air in the micro-module by the row-level air conditioner, can effectively improve the cooling efficiency of the micro-module data center, and reduce the PUE; the sealing of the peripheral channels can effectively reduce the impact of equipment noise on the machine room; the row-level If the air conditioner meets the cooling capacity requirements, there is no need to arrange rooms and precision air conditioners, which can reduce costs and greatly improve the market competitiveness of products.

The invention discloses a background difference and iteration searching-based status recognition method of a high-voltage isolation switch. The method sequentially includes the following steps: 1) taking a multi-frame consecutive image sequence, and taking intermediate values of pixel point grayscale values of corresponding positions in the multi-frame image sequence to use the same as grayscale values of corresponding pixel points in a background image to acquire the background image; 2) carrying out difference operating on a current-frame image and the background-frame image to obtain a foreground image; 3) processing the foreground image through a shadow suppression method, and marking a position of the high-voltage isolation switch; 4) tracking the position of the high-voltage isolation switch through iteration calculation when the position of the high-voltage isolation switch changes; 5) using a result of a previous frame as input to carry out cyclic iteration to acquire a motiontrajectory of the high-voltage isolation switch; and 6) analyzing status of the high-voltage isolation switch according to an included angle of a switch tracking point and a center line after the motion trajectory of the high-voltage isolation switch is acquired. The method is high in real-time performance, wide in an application range, stable and reliable.

The invention provides a cross-domain dialogue strategy migration method, which comprises the following steps of: processing an input user input dialogue so as to map a corresponding target domain dialogue state; mapping the target domain dialogue state into a source domain dialogue state; based on a preset dialogue strategy of the source domain, processing the dialogue state of the source domainto obtain a corresponding dialogue reply of the source domain; and mapping the source domain dialogue reply into a target domain dialogue reply. The invention also provides a cross-domain dialogue strategy migration device, equipment and a readable storage medium. The technical problems that an existing conventionally constructed dialogue system is difficult to maintain, the cost of manual data annotation is high, data are repeatedly annotated, and annotated data are difficult to apply in a cross-domain mode are solved.

The invention belongs to the technical field of a microwave antenna and discloses a broadband high isolation double circularly polarized antenna based on a single layer artificial surface Plasmon. Theantenna includes a radiator, two vertically placed differential feed baluns and a metal reflector, wherein the radiator is located above the floor, upper ends of the two baluns are connected with theradiator, lower ends of the baluns penetrate through the metal floor and are connected with a feeding coaxial line, the radiator consists of four dipoles, two pairs of feeders and four parasitic metal rings, and the two pairs of feeders include a pair of coplanar strip lines and a pair of odd-mode artificial surface plasmon transmission lines. Full-wave electromagnetic simulation and processing tests are performed for the designed antenna, and that the antenna is capable of achieving broadband high isolation double circularly polarized radiation in the designed frequency band is verified. Theantenna is advantaged in that properties of high isolation, wide axial ratio bandwidth, high aperture efficiency and easy processing are achieved, and the application prospect is wide.

The invention belongs to the technical field of information safety, and discloses a QR code-based user secret information hiding method. The method comprises the following steps that: firstly, generating a position sequence, and generating the position sequence for information hiding by a user by using a secret key and a pseudo random number generator; and then encoding the secret information needing to be hidden by the user and then hiding the secret information into the encoding process of the QR code by using the position sequence. The hidden QR code can be normally scanned to read the cover information, so that the attention of an attacker is not easily attracted. Finally, the user can recover the secret information in the hidden QR code by using the secret key. According to the method, the privacy information of the user is hidden by utilizing the QR code, the pseudo random number generator and the information hiding property, and only the user with the secret key can read the hidden information. The hiding and recovering algorithm is low in calculation complexity, can be used on low-power equipment, and is wide in application scene.

The invention relates to the technical field of laser radar sensors and unmanned ship automatic driving, in particular to a method for extracting a water surface passable area by a high-robustness unmanned ship based on a laser radar. According to the method, experimental environment data are acquired by using a laser radar sensor, semantic segmentation is performed on point cloud data through a neural network, continuous multi-frame river bank point cloud data are fused, river bank point cloud is refined through smooth filtering and an image corrosion method, and then feature points are extracted and sequenced to serve as control points. Then, in order to slow down the rapid change of the river bank, the control points are smoothed through unscented Kalman filtering; and fitting the smoothed control points by using a B spline curve, and finally carrying out noise filtering on the extracted water surface region based on particle filtering. The robustness and precision of extracting the water surface passable area are effectively improved.

The invention discloses a message processing method based on a DHCP RELAY protocol and a relay device. The method relates to the field of DHCP RELAY, and comprises the steps of generating an interfaceinformation table for recording a mapping relationship between an interface VLAN ID and an interface index, and a forwarding domain information table for recording a mapping relationship between theinterface VLAN ID and an interface virtual routing forwarding VRF ID; analyzing a uplink request message of a client, obtaining user attribute information, storing or updating the user attribute information to a local MAC information storage table to establish a mapping relationship between the MAC address of the client and the interface VLAN ID, inserting the user attribute information into the uplink request message, and sending the user attribute information to the server; analyzing a downlink protocol message responded to by the server, and sending the downlink protocol message to the client in a unicast manner from a specified output interface based on the MAC information storage table, the interface information table and the forwarding domain information table. According to the invention, the impact of downlink protocol message broadcasting and flooding can be avoided, and the network stability and security are enhanced.

The invention discloses a VR immersion application system based on a 3D live-action cloning technology, and belongs to the technical field of virtual reality, and the system comprises: VR scanning equipment which selects a plurality of display points and connection points to carry out the scanning analysis of a live-action scene; a scene acquisition unit which is used for splicing a complete sceneby using a three-dimensional data splicing technology and then transmitting scene data; a scene storage unit which is used for fragmenting the scene data, slicing and segmenting the scene data according to an adaptive size and then storing a single file; a scene modeling unit which is used for establishing a scene model in a ratio of 1:1 with a real scene and transmitting scene model data to thefront-end equipment; and front-end equipment which is matched with the hardware display card, accelerates the hardware display card by using an HTML5 Canvas 3D technology, quickly loads scene model data and displays the scene model data. According to the VR immersion application system, the problems of possible data loss, insufficient scene authenticity and poor user experience caused by relatively large data volume and relatively high network bandwidth requirements of an existing VR application are solved.

The invention discloses a method, device and equipment for classifying users through a decision tree model, and relates to artificial intelligence, and the method comprises the steps of obtaining at least one user attribute of a to-be-classified user and a pre-created decision tree model; obtaining a Gini coefficient corresponding to each attribute node of the decision tree model in a current scene, wherein the Gini coefficient carries weight information of the attribute node corresponding to the current scene; starting from a root node of the decision tree model, sequentially determining expenditure nodes of attribute nodes of a next level according to the Gini coefficient; selecting user attributes existing in attribute nodes of the decision tree model from the user attributes to obtain matching attributes; and matching the obtained matching attribute with each node attribute in the decision-making tree model, and classifying the user according to the determined expenditure node of each level in the decision-making tree model.

The invention provides an interface embedding display method and device, a user terminal and a readable storage medium. The method comprises the steps of obtaining a process identifier and a target window class name of a target application program, on the basis of the process identifier, obtaining a window handle matched with the target window class name; performing type conversion on the window handle, creating a window container matched with the window handle, and generating a corresponding window control widget; on the basis of the widget, creating an interface display class correspondinglymatched with a QML interface; registering the interface display class to the QML interface, and on the basis of the QML interface, displaying the target window corresponding to the interface displayclass. The interface embedding display method can embed the process interface of the target application program into the QML interface, and display the process interface according to the QML interfaceso as to improve the application scene range of the QML technology.

The invention discloses an intelligent beer machine. The intelligent beer machine comprises a refrigeration box body and an electric appliance box body installed above the refrigeration box body. Theelectric appliance box body is provided with a lifting sliding rail, a carbon dioxide gas cylinder and a bag outlet device. The lifting sliding rail is provided with a lifting tap assembly. The lifting tap assembly and the carbon dioxide gas cylinder are connected with the refrigeration box body through pipelines correspondingly. The bag outlet device comprises a bag outlet sliding rail arranged on the inner side of the electric appliance box body, a plurality of spring drawers installed on the inner side of the electric appliance box body and a bag outlet which is formed in the lower side ofthe electric appliance box body and connected with the bag outlet sliding rail. In this way, according to the intelligent beer machine, beer sale and beer storage bag sale are integrated on the same equipment, the problem that a beer storage container is limited is solved, the application scene range is enlarged, the purchasing process is simplified, the structural design is reasonable and compact, less space is occupied, and transportation and transposition are convenient.

The invention provides an indoor distribution base station air interface synchronization method and system, and the method comprises the steps: obtaining synchronization information transmitted by a synchronization source base station, determining a downlink timing reference, and intercepting wireless frame data; obtaining a signal-to-noise ratio of an initial synchronization stage based on the wireless frame data, and obtaining a signal-to-noise ratio threshold according to the signal-to-noise ratio of the initial synchronization stage; acquiring a downlink air interface signal according to a preset period, acquiring a real-time synchronization state and a frame header relative offset value of a synchronization source base station according to the downlink air interface signal, and acquiring a signal-to-noise ratio in a synchronization keeping stage; determining a timing reference adjustment strategy based on the real-time synchronization state and a comparison result of the signal-to-noise ratio in the synchronization keeping stage and a signal-to-noise ratio threshold; and if it is judged that the real-time synchronization state is out-of-step and synchronization is not recovered within the preset detection period times, self-adaptive pre-compensation is carried out. According to the invention, on the premise that the hardware cost of the base station is not increased and the implementation complexity is low, the stability of the air interface synchronization state of the indoor distribution base station in a complex environment is effectively improved, and the application scene range of the indoor distribution base station is expanded.

The invention discloses a healthy chip for sports. The healthy chip comprises a sport health detection sensor, an ADC (Analog to Digital Converter) conversion unit, a CPU (Central Processing Unit), a Bluetooth control circuit, a Bluetooth antenna, an NFC (Near Field Communication) control circuit, an NFC antenna, a battery, a wireless charging coil and a power supply management circuit which are packaged into a whole, wherein the sport health detection sensor, the ADC conversion unit, the CPU, the Bluetooth control circuit and the Bluetooth antenna are sequentially connected; in addition, the CPU, the NFC control circuit and the NFC antenna are sequentially connected; the battery and the antenna charging coil are respectively connected with the power supply management circuit; besides, no electrical interface is formed in the surface of a packaged chip. According to the healthy chip disclosed by the invention, the whole chip has no external physical electrical connection interface; a single chip can separately work without an external printed circuit board; charging and communication are finished in a wireless manner; the chip is enabled to work in water or sweat and the other environments where original electronic equipment cannot work, so that the ranges of application scenes of Internet of Things chips are greatly widened.

The invention discloses a voice broadcast device with an emergency light function. The voice broadcast device comprises a main body and an illuminating device, wherein the illuminating device is arranged on the main body through a rotating mechanism, so that the illuminating device can rotate relative to the main body. Through arrangement of the illuminating device on an existing voice broadcast device, the existing voice broadcast device can be used as an emergency illuminating device, so that the application scene range of the existing voice broadcast device is expanded.