Abstract: Systems and methods for performing optical distance measurement are provided. In one aspect, a system for measuring a distance to an object comprises a light emitter configured to emit an outbound light pulse, and a light sensor configured to receive a returning light pulse reflected from the object and output an analog pulse signal representing the returning light pulse. The system also comprises a field-programmable gate array (FPGA) coupled to the light sensor. The FPGA is configured to convert the analog pulse signal to a plurality of digital signal values, and generate a plurality of time measurements corresponding to the plurality of digital signal values. The system also comprises a controller configured to calculate the distance to the object based on the plurality of digital signal values and the plurality of time measurements.

Abstract: The present disclosure relates to a transmit power control method and apparatus for a node device, a node device, and a storage medium. The method includes: upon receipt of a first physical layer protocol data unit which is sent to an access point by a station of an overlapping basic service set and which can be ignored, obtaining spatial reuse parameters of a basic service set where a node device is located; calculating a first transmit power limit value according to the spatial reuse parameters; obtaining a path loss value from the access point to the node device; obtaining a minimum signal detection threshold of the access point; calculating a second transmit power limit value according to the path loss value and the minimum signal detection threshold; and adjusting the maximum transmit power according to the first transmit power limit value and the second transmit power limit value.

Abstract: The light-emitting device includes a substrate, a light-emitting chip unit formed on the substrate and including multiple chips, an isolation groove extending in a first direction and separating two adjacent ones of the chips, and a bridging structure. The isolation groove is defined by a bottom and two sidewalls and has a first groove section and a second groove section arranged in the first direction. The first groove section has a width in a width direction perpendicular to the first direction that is greater than a width of the second groove section in the width direction. At the first groove section, one of the sidewalls has a curved portion. The bridging structure is formed on the bottom and the sidewalls, covers the curved portion, and electrically connects the two adjacent ones of the chips.

Abstract: An analytics system uses soil health indicators to determine metrics for soil samples. In an embodiment, the analytics system receives metadata describing a soil sample, where the metadata indicates one or more types of crops grown in a geographical location having the soil sample. The analytics system determines nucleic acid sequence reads of the soil sample. The analytics system determines taxonomic information of the nucleic acid sequence reads. The analytics system determines microbial composition of the soil sample using the taxonomic information. The analytics system determines reference metrics of soil samples from geographical locations in which the one or more types of crop were grown. The analytics system determines a metric of the soil sample using the microbial composition and the reference metrics. The analytics system transmits the metric to a client device.

Abstract: A lighting device includes a base, a panel assembly, and a power supply assembly. The panel assembly is at least partially connected to the base and includes a luminous body. The power supply assembly is connected to the lighting device. The panel assembly includes a main panel and a plurality of auxiliary panels. The main panel is fixedly connected to the base, a first auxiliary panel among the plurality of auxiliary panels is rotatably connected to the main panel, and a second auxiliary panel among the plurality of auxiliary panels is rotatably connected to the first auxiliary panel.

Abstract: A driving system having a hollow shaft, a solid shaft arranged in the hollow shaft, a stator, a rotor connected to the hollow shaft, a clutch mechanism selectively engaged to one of the stator and the rotor, and a speed reduction mechanism having a planetary carrier assembly engaged to the clutch mechanism, and a planetary gear train connected between the solid shaft and the rotor, wherein where the clutch mechanism is engaged to the stator in a transmission manner, the planetary carrier assembly is connected with the stator, and the rotor drives the solid shaft and the hollow shaft to operate at a differential speed, and where the clutch mechanism is engaged to the rotor in the transmission manner, the planetary carrier assembly is connected with the rotor, and the rotor drives the solid shaft and the hollow shaft to operate at a same speed by the planetary gear train.

Abstract: The present invention relates to the technical field of mine fire prevention and extinguishing, in particular to a liquid nitrogen direct injection and low-temperature foaming intelligent filling system based on mine fire area characteristics and an application method, comprising a liquid nitrogen storage tank, a liquid nitrogen direct injection system and a low-temperature foaming system, wherein the liquid nitrogen storage tank communicates with a liquid nitrogen pressurizing device through a main pipeline; a temperature control unit is arranged on the main pipeline; and the liquid nitrogen pressurizing device is connected with the liquid nitrogen direct injection system and the low-temperature foaming system, respectively, liquid nitrogen is directly injected into a foam liquid, to prepare a low-temperature foam type fire preventing and extinguishing material by means of forced convection, membrane boiling, explosion boiling and nucleate boiling between the liquid nitrogen and water.

Abstract: The present disclosure provides a power unit, aiming to provide a four-in-one drive powertrain for an electric vehicle. Key points of the technical scheme include a shell body. One side of the shell body is formed with a chamber having a partition structure arranged in a middle part thereof, the partition structure separates the chamber into a control part and a drive part, and the other side of the shell body is provided with a deceleration part and a DC/DC part. The control part includes a containing cavity positioned on a left side of the chamber and integrally formed with the shell body to place a controller. The drive part includes an accommodating cavity positioned on a right side of the chamber and integrally formed with the shell body to install an electric motor.

Abstract: A method, system, and device for describing a relationship between objects in a three-dimensional virtual space, and a medium. The method of the present invention includes: for a first-level node under a three-dimensional virtual space node, determining that a position and a rotation direction of an object associated with the node are free; and for a node that is not a first-level node, obtaining a node type of the node and a node type of a parent node of the node, and determining that the object associated with the node maintains or does not maintain a relative position relative to an object associated with the parent node, and maintains or does not maintain a relative rotation direction relative to the object associated with the parent node.

Abstract: A visual data operation method, system, and device, and a medium for one or more pieces of data, creating one or more corresponding value objects, and arranging the one or more value objects as a tree structure; and for the one or more value objects, creating corresponding database records, and defining fields of the database records by the one or more value objects. Data and database records correspond to each other and are mutually converted by using value objects. A developer only needs to arrange the value objects as a tree structure, and a system can automatically complete remaining data operations subsequently, including creating database records and synchronizing database records, and the like. A developer can quickly design a data storage format by taking a user as a unit, and the design presentation is intuitive and understandable to other developers.

Abstract: A semiconductor device includes a semiconductor substrate having a first region and a second region, insulators, gate stacks, and first and second S/Ds. The first and second regions respectively includes at least one first semiconductor fin and at least one second semiconductor fin. A width of a middle portion of the first semiconductor fin is equal to widths of end portions of the first semiconductor fin. A width of a middle portion of the second semiconductor fin is smaller than widths of end portions of the second semiconductor fin. The insulators are disposed on the semiconductor substrate. The first and second semiconductor fins are sandwiched by the insulators. The gate stacks are over a portion of the first semiconductor fin and a portion of the second semiconductor fin. The first and second S/Ds respectively covers another portion of the first semiconductor fin and another portion of the second semiconductor fin.

Abstract: A data dictionary generation system utilizes a background service that is programmed to automatically populate and update a data dictionary for listings offering shared data. A data dictionary includes metadata describing the shared data overall as well as the individual objects included in the listing, such as the individual tables, schemas, views, and functions. To generate the data dictionary, the data dictionary generation system analyzes the shared data to identify objects, identifies a set of data fields associated with each identified object and populates the set of data fields associated with each identified object based on the shared data offered by the listing. To ensure that a data dictionary for each listing remains up to date, the data dictionary generation system periodically scans the listings to identify any changes to share access granted to the listings.

Abstract: A data dictionary generation system automatically populates and updates a data dictionary for listings offering shared data. A data dictionary includes metadata describing the shared data, including the individual objects, such as the individual tables, schemas, views, and functions. The shared data and each individual data object may be described in the data dictionary by a set of data fields that corresponds to the shared dataset or the object type of the individual object. The data dictionary can be presented to data consumers along with the description of the listing to provide data consumers with a comprehensive description of the shared data provided by a listing, including a high-level summary of the shared data and description of each individual object included in the shared data. The data dictionary allows data consumers to understand the contents of the shared data and how to use the shared data.

Abstract: A data dictionary generation system automatically populates and updates a data dictionary for listings offering shared data. The data listing distribution component distributes the data dictionaries to various remote deployments in a data exchange by using a global messaging framework and replication method. For example, the data listing distribution component replicates a data dictionary generated for the listing and its shared data from a source deployment to one or more destination deployments associated with various geographic regions. The data listing distribution component distributes the listing to the various remote deployments to allow for the listing, including its shared data and data dictionary, to be accessed by users within the geographic region associated with the remote deployment.

Abstract: Provided is a method for treating an oil gas, which can realize high-efficiency separation for and recovery of gasoline components, C2, C3, and C4 components. The method first conducts separation of light hydrocarbon components from gasoline components, and then performs subsequent treatment on a stream rich in the light hydrocarbon components, during which it is no longer necessary to use gasoline to circularly absorb liquefied gas components, which significantly reduces the amount of gasoline to be circulated and reduces energy consumption throughout the separation process. Besides, in this method, impurities, such as H2S and mercaptans, in the stream rich in the light hydrocarbon components are removed first before the separation for the components. This ensures that impurities will not be carried to a downstream light hydrocarbon recovery section, thus avoiding corrosion issues caused by hydrogen sulfide in the light hydrocarbon recovery section.

Abstract: A continuous quantitative spraying structure for sterilization of harvested fruits is provided. The continuous quantitative spraying structure includes a track provided thereon with equally spaced trays for conveying fruits, where the trays each include a circular tray body; a central part of the tray body is provided with a central hole allowing the fruit to fall off; a bottom part of the central hole is provided with two parallel rollers; an inner bottom surface of the tray body is provided with a flap; an inner end of a central shaft of the roller passes through the flap, and is fixed to a rolling wheel; a bearing is provided between the roller and the flap; the track is provided with a spraying sterilization section; the spraying sterilization section is sequentially provided with 3 to 4 sets of sterilization nozzles above a tray conveying route.

Abstract: The present application relates to the field of battery technologies, for example, to a battery, a battery module, and a battery pack. The battery includes a housing, a terminal pole column, and an upper plastic member. A first through hole is defined on a top cover of the housing. The terminal pole column passes through the first through hole. The upper plastic member is disposed above the top cover of the housing. The terminal pole column is capable of passing through the upper plastic member and bending outward to form a flange, and the terminal pole column abuts against the upper plastic member, and an upper top surface of the terminal pole column and an upper top surface of the upper plastic member are flush with each other.

Abstract: The present invention relates to the technical field of game development and logic editors, and in particular, to a visual logic execution method, system, and device, and medium. The method of the present invention comprises: when a specific event occurs, searching for an event node associated with the specific event serving as a child node under an object node associated with an object in the specific event, where the object node and the event node are comprised in a node list arranged as a tree structure; and executing logic in the event node. A third-party reader can quickly understand how the logic in game design is executed, so that communication and learning of developers of different games can be facilitated, and an affiliation relationship between the specific event and the object in the specific event in a node list can be intuitively displayed.

Abstract: The present disclosure provides an image-forming device, and a method and a controller for controlling the image-forming device. The method is executed by the controller of the image-forming device. The method includes when a first sensor disposed in the image-forming device is abnormal, determining, by the controller, an environmental parameter in real-time through one or more target apparatuses disposed in the image-forming device, where the environmental parameter includes at least one of temperature and humidity; and the first sensor is configured to detect the environmental parameter inside the image-forming device; and according to the environmental parameter in real-time, adjusting, by the controller, a control parameter when the image-forming device forms images.

Abstract: A location-aware electronic device is provided. The electronic device trains feature extraction layers, reconstruction layers, and classification layers. The training may be based on a reconstruction loss and/or a clustering loss. The electronic device processes a fingerprint to obtain an augmented fingerprint using randomization based on statistics of the fingerprint. The feature extraction layers provide feature data to both the reconstruction layers and the classification layers. The classification layers operate on the codes to obtain an estimated location label. An application processor operates on the estimated location label to provide a location-aware application result to a person.