Abstract: Embodiments of this application disclose an over-the-air upgrade method, apparatus, and system, a storage medium, and a program, and pertain to the field of device upgrade technologies. In embodiments of this application, a safe area and a dangerous area are defined, so that location information of a to-be-upgraded vehicle is obtained during over-the-air upgrading, and an upgrade service is provided based on a location relationship between the to-be-upgraded vehicle and a predefined area. In this way, the to-be-upgraded vehicle can be properly controlled to be at a suitable place, thereby ensuring upgrade safety, and eliminating hazards to safety of the vehicle and traffic safety.

Abstract: A backlight module and a liquid crystal display device are disclosed. The backlight module includes a backplate, a light bar, a first optical film, a frame, and an adhesive layer. By an arrangement of a corresponding optical film adhesively attached to a side of the frame opposite to the light bar through the adhesive layer, heat changes of the corresponding optical film are concentrated on one side of the light bar, which facilitates fulfillment of reliable attachment of the corresponding optical film and narrow bezel design of in-vehicle backlight modules, as well as eliminating or mitigating problems of bright edges and a fluorescence phenomenon in the backlight modules.

Abstract: Receiving a map update indication message from a map server; sending a first map update query request message to an OTA upgrade master node apparatus in a vehicle based on the map update indication message; receiving a first map update query feedback message that is fed back by the OTA upgrade master node apparatus based on the first map update query request message; sending a map data download start message to the map server in response to the first map update query feedback message; receiving map update data sent by the map server; and updating a map in the vehicle based on the map update data.

Abstract: A display device is provided. The display device includes an inner frame and an optical component. The inner frame includes a bearing surface for carrying the optical component and a limiting surface for limiting the optical component. The limiting surface and the bearing surface are arranged opposite to define an accommodation space to accommodate the optical component. The bearing surface and the limiting surface are both curved surfaces, and a distance between the bearing surface and the limiting surface matches a thickness of the optical component.

Abstract: A backlight module and a display device are provided. The backlight module includes a plurality of light boards spliced together and a reflector corresponding to a seam of two adjacent light boards. By disposing the reflector at the seam of the two adjacent light boards, a reflection performance of light at the seam is improved and a shadow problem at the seam is improved.

Abstract: A backlight module and a display device are provided. The backlight module includes: a backplate including a bottom plate and at least one side plate disposed on the bottom plate; a light board including at least one light-emitting diode, wherein the light board is fixed onto one of the at least one side plate and disposed on one side of the bottom plate; and a reflective sheet disposed on the bottom plate and extending between the at least one light-emitting diode and the bottom plate.

Abstract: The present disclosure relates to map tile update methods and apparatuses. In one example method, a first device receives map update information from a second device, where the map update information includes identifiers of a plurality of to-be-updated map tiles. The first device obtains an update policy based on the map update information, where the update policy includes an update sequence of the plurality of to-be-updated map tiles. The first device downloads, according to the update sequence, update information of the to-be-updated map tiles based on the update policy.

Abstract: This application discloses a method for training a gaze tracking model, including: obtaining a training sample set; processing the eye sample images in the training sample set by using an initial gaze tracking model to obtain a predicted gaze vector of each eye sample image; determining a model loss according to a cosine distance between the predicted gaze vector and the labeled gaze vector for each eye sample image; and iteratively adjusting one or more reference parameters of the initial gaze tracking model until the model loss meets a convergence condition, to obtain a target gaze tracking model. According to the solution provided in this application, a gaze tracking procedure is simplified, a difference between a predicted value and a labeled value can be better represented by using the cosine distance as a model loss to train a model, to improve prediction accuracy of the gaze tracking model.

Abstract: The present invention discloses a chip heat dissipation structure and a liquid crystal display device, and the chip heat dissipation structure includes: a chip contact end and a backplate contact end. The chip heat dissipation structure is made of thermal conductive material. The backplate is a backplate on a bottom of a backlight module in the liquid crystal display device. The present invention by conducting heat generated by the chip to the backplate lowers the increased temperature of the chip to solve the issue the heated surface of the liquid crystal display device.

Abstract: A method for detecting comprehensive GPU-related factors of a distributed cluster, the method including: (1): checking whether there is a configuration file content of an operating node; (2): reading a mode parameter in an environment variable of the operating node, and correspondingly switching an operating mode according to the mode parameter; (3): reading a timer frequency value from the environment variable of the operating node so as to set a time period for reading a GPU information parameter according to the timer frequency value; (4): calculating the maximum value of the GPU information parameter of the operating node, and storing the maximum value into the GPU information list cache; and (5): initializing the transmitted information; determining whether there is a GPU in the GPU information list cache of the operating node.

Abstract: A face key point detection method includes determining, according to an image containing a face, a multi-channel feature map of the image; converting the multi-channel feature map into a predetermined channel quantity of target feature maps; performing a convolution operation on each target feature map in the predetermined channel quantity of target feature maps by using a convolution kernel corresponding to each target feature map; generating a feature vector corresponding to the image based on a result of the convolution operation on each target feature map; and determining key point coordinates of the face on the image according to the feature vector.

Abstract: A contextual visual-based synthetic-aperture radar (SAR) target detection method and apparatus, and a storage medium, belonging to the field of target detection is described. The method includes: obtaining an SAR image; and inputting the SAR image into a target detection model, and positioning and recognizing a target in the SAR image by using the target detection model, to obtain a detection result. In the present disclosure, a two-way multi-scale connection operation is enhanced through top-down and bottom-up attention, to guide learning of dynamic attention matrices and enhance feature interaction under different resolutions. The model can extract the multi-scale target feature information with higher accuracy, for bounding box regression and classification, to suppress interfering background information, thereby enhancing the visual expressiveness.

Abstract: The present disclosure provides a pixel driving circuit, an array substrate and a display panel. The pixel driving circuit of the present disclosure includes a switch transistor and N redundant switch transistors, the switch transistor and the N redundant switch transistors are connected in series, a second electrode of an Nth redundant switch transistor is coupled to a first electrode of the switch transistor, and a second electrode of the switch transistor is coupled to a display electrode.

Abstract: The present disclosure provides a synthetic aperture radar (SAR) image target detection method. The present disclosure takes the anchor-free target detection algorithm YOLOX as the basic framework, reconstructs the backbone feature extraction network from the lightweight perspective, and replaces the depthwise separable convolution in MobilenetV2 with one ordinary convolution and one depthwise separable convolution. The number of channels in the feature map is reduced by half through the ordinary convolution, features input from the ordinary convolution are further extracted by the depthwise separable convolution, and the convolutional results from the two convolutions are spliced. The present disclosure highlights the unique strong scattering characteristic of the SAR target through the attention enhancement pyramid attention network (CSEMPAN) by integrating channels and spatial attention mechanisms.

Abstract: The invention provides a built-in micro-interface oxidation system for preparing terephthalic acid from p-xylene. The oxidation system includes a first reactor, a rectifying tower and a second reactor which are sequentially connected. A first outlet is disposed on a side wall of the first reactor; a first inlet is disposed on a side wall of the second reactor; a material inlet is disposed on a side wall of the rectifying tower; and a material outlet is disposed at a bottom of the rectifying tower. The first outlet is connected with the material inlet of the rectifying tower; the first inlet is connected with the material outlet of the rectifying tower. Micro-interface units are arranged in the first reactor and the second reactor for dispersing and crushing air into bubbles. Through disposing micro-interface units in reactors, problems of high energy consumption, high raw material consumption and low reaction efficiency are solved.

Abstract: A treatment system and method for cephalosporin wastewater are disclosed. The treatment system includes: a flocculation and sedimentation device, an alkali reaction tank, a PAC reaction tank, a PAM reaction tank, a wastewater heat exchanger, a wastewater heater and an oxidation reactor that are connected with each other in sequence, wherein the wastewater heat exchanger is provided with a material inlet, a material outlet, a heat source inlet and a heat source outlet. An oxidized water from the oxidation reactor enters the wastewater heat exchanger from the heat source inlet, the heat source outlet is connected with a product canister, the product canister is connected with a membrane filtration device to realize concentration treatment of a landfill leachate, the material inlet is connected with the PAM reaction tank, and the material outlet is connected with the wastewater heater.

Abstract: A display system includes a display module, a projection component, and a projection bearing component. The projection component is disposed with respect to a display side defined by a second liquid crystal panel. The projection bearing component is disposed with respect to a side of the projection component away from the display module. The projection component is configured to project a display image of the second liquid crystal panel onto the projection bearing component.

Abstract: A built-in micro interfacial enhanced reaction system and process for PTA production with PX are provided. The system includes a reactor and a micro interfacial unit disposed inside reactor. The reactor includes a shell, an inner cylinder concentrically disposed inside shell, and a circulating heat exchange device partially disposed outside shell, inner cylinder having a bottom end connected to inner bottom surface of the shell in closed manner and an open top end, a region between shell and inner cylinder being first reaction zone, inner cylinder containing second reaction zone and third reaction zone from top to bottom, circulating heat exchange device being connected to inner cylinder and micro interfacial unit respectively. The invention can solve problems of large waste of reaction solvent acetic acid under high temperature and high pressure and being unable to take out the product TA in time during existing process of PTA production with PX.

Abstract: A strengthening oxidation system of the external micro-interfacial unit for producing PTA with PX is provided, including: a reactor, a circulating heat exchange device and a micro-interfacial unit. The reactor includes an outer casing and an inner cylinder disposed concentrically inside the outer casing. The circulating heat exchange device is disposed at an exterior of the reactor, and is connected with the outer casing and the inner cylinder respectively, for regulating reaction temperatures of the first reaction zone, the second reaction zone and the third reaction zone inside the reactor in a reaction process of producing PTA with PX.

Abstract: Disclosed in the present invention is a control method for water supply during loosening and conditioning based on a neural network model and a dual parameter correction. The method comprises: establishing a neural network-based model for predicting the amount of water supplied during loosening and conditioning; predicting and distributing the total water supplied; and correcting the model based on material balance calculation and deviation. In the present application, when there is a large deviation in outlet moisture, the dual correction control system combining the material balance calculation and the moisture deviation is used for correction to improve the stability and precise control of the outlet moisture during the loosening and conditioning process.