Abstract: A speech recognition method is provided. The method may include: obtaining speech data and a speech recognition result of the speech data, the speech data including speech of a plurality of speakers, and the speech recognition result including a plurality of words; determining speaking time of each of the plurality of speakers by processing the speech data; determining, based on the speaking times of the plurality of speakers and the speech recognition result, a corresponding relationship between the plurality of words and the plurality of speakers; determining, based on the corresponding relationship, at least one conversion word from the plurality of words, each of the at least one conversion word corresponding to at least two of the plurality of speakers; and re-determining the corresponding relationship between the plurality of words and the plurality of speakers based on the at least one conversion word.

Abstract: A motor includes a housing, an impeller and a diffuser in the housing, a rotor assembly and a stator assembly, the motor has an air inlet on the housing and an air outlet, the impeller is disposed adjacent to the air inlet and is connected to the rotor assembly, the diffuser is located downstream of the impeller, the stator assembly is located downstream of the diffuser, the housing includes a front housing and a rear housing connected to each other, a first air duct is enclosed among a rear inner wall of the front housing, a front inner wall of the rear housing and the diffuser and in communication with an outlet of the impeller and the air outlet, and an inner diameter size of the rear end of the rear inner wall is less than or equal to that of the front end of the front inner wall.

Abstract: A node upgrade method and apparatus are provided. The method includes: A software package set locally stored in a primary control node includes an upgrade software package for all secondary nodes; when a diagnosis request from an upper computer is received, a software package set is downloaded from the upper computer and split into one or more upgrade software packages based on a node identifier; and then the one or more upgrade software packages are distributed to all target nodes corresponding to node identifiers. The primary control node is responsible for splitting and identifying the target nodes, to implement simultaneous upgrade of all controllers. In other words, each vehicle enterprise does not need to define different diagnosis identifiers to distinguish between and manage and control the primary control node and the secondary nodes.

Abstract: The application provides a method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma, including: using a mixture of hydrogen rich gas and argon gas to generate hydrogen plasma for denitrification of molten steel during at least one of arc furnace smelting, ladle refining, VOD refining, and RH refining. The method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma provided in the application can effectively remove nitrogen from the molten steel by spraying a mixture of argon gas and hydrogen rich gas into the molten steel through a hollow electrode and plasma torch, reducing electrode consumption and electricity consumption per ton steel, and also reducing arc radiation heat loss, improving heating rate, thereby shortening smelting time and reducing production costs.

Abstract: A speech recognition method is provided. The method may include: obtaining speech data and a speech recognition result of the speech data, the speech data including speech of a plurality of speakers, and the speech recognition result including a plurality of words; determining speaking time of each of the plurality of speakers by processing the speech data; determining, based on the speaking times of the plurality of speakers and the speech recognition result, a corresponding relationship between the plurality of words and the plurality of speakers; determining, based on the corresponding relationship, at least one conversion word from the plurality of words, each of the at least one conversion word corresponding to at least two of the plurality of speakers; and re-determining the corresponding relationship between the plurality of words and the plurality of speakers based on the at least one conversion word.

Abstract: The present invention discloses a blockchain-based Industrial Internet of Things (IIoT) data management system and method, where the system includes a physical layer, an edge layer, a network interface layer and a cloud layer; the physical layer includes a plurality of different IIoT device monitoring systems; the edge layer is configured to build an IIoT blockchain network; the cloud layer includes cloud servers which are configured to be deployed in a real blockchain network environment to improve performance and effectiveness of the blockchain network. The present invention can effectively solve the problem of parameter optimization lag in industrial production applications.

Abstract: A smart outlet is provided to allow charging of a vehicle using a standard 240 Volt socket provided with features that limit use to authorized users and collect and transmit billing information associated with a charging session for an authorized user following OCPP standard.

Abstract: This application relates to a vehicle battery swapping method. The method includes: connecting a positioning line of a battery swapping van to a predetermined reference point of a battery-to-be-swapped vehicle; obtaining a distance between a coordinate origin of a hoister of the battery swapping van and the reference point of the battery-to-be-swapped vehicle, and angles of the positioning line with respect to a travel direction, a longitudinal direction, and a vertical direction, respectively, of the battery-to-be-swapped vehicle; and determining, based on the obtained distance and angles, a moving track of an end effector of the hoister. This application further relates to a battery swapping van configured to swap a vehicle battery, an electronic device, and a computer-readable storage medium.

Abstract: The application provides a method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma, including: using a mixture of hydrogen rich gas and argon gas to generate hydrogen plasma for denitrification of molten steel during at least one of arc furnace smelting, ladle refining, VOD refining, and RH refining. The method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma provided in the application can effectively remove nitrogen from the molten steel by spraying a mixture of argon gas and hydrogen rich gas into the molten steel through a hollow electrode and plasma torch, reducing electrode consumption and electricity consumption per ton steel, and also reducing arc radiation heat loss, improving heating rate, thereby shortening smelting time and reducing production costs.

Abstract: The present invention provides a three-folding inflatable car roof tent and a storage device thereof. The three-folding inflatable car roof tent includes a tent main body, composite slide rails, a three-folding bed frame and the a storage device; the three-folding bed frame is fixedly installed above a base frame; the tent main body is detachably fixed on the three-folding bed frame; the storage device is of a shell structure that is telescopically adjusted in size; the lower side border of the storage device is in sliding connection with the border of the base frame; and the three-folding bed frame may be stored by the sliding storage device after being folded. The three-folding inflatable car roof tent is relatively light in overall weight, firm in structure and convenient to support and store.

Abstract: The present disclosure provides a folding vehicle rooftop tent, including a folding bottom plate, where two folding supporting rods are detachably and fixedly connected below the folding bottom plate and is used to stably support the folding bottom plate above the vehicle roof, and a tent main body is detachably and fixedly mounted above the folding bottom plate. The folding vehicle rooftop tent provided by the present disclosure is convenient to disassemble and assemble, stable to use, small in occupied area after folding, and more convenient to store and carry.

Abstract: A cell heating assembly includes a substrate and an electric heating circuit. The substrate is provided with Q first supporting parts and P second supporting parts, and each first supporting part is used for supporting one cell. The electric heating circuit includes P electric heaters and a conducting circuit, and the conducting circuit is electrically connected with the P electric heaters. The P electric heaters and the conducting circuit are arranged on the substrate. Each second supporting part is used for supporting one electric heater. At least one electric heater and at least one second supporting part are arranged around each first supporting part.

Abstract: A near-zero maintenance integrated purification device for drinking water supply of villages and towns and a method for treating source water using this device are provided to solve the multi-pollution problems caused by microorganisms, turbidity, iron, manganese, taste and odor, and organic matter in the drinking water sources of villages and towns. The device includes a small-spacing folding plate speed sink regulating water tank, a small diameter tube reactor, a granular active carbon (GAC) slow-speed filter tank, a gravity-driven ultrafiltration membrane tank and an ipsilateral U-turn corridor clean water tank. The near-zero maintenance integrated purification device is applicable to different types of water sources (e.g., groundwater, lake water, reservoir water, spring water, snowmelt water, cellar water and rain water, etc.), and could efficiently remove kinds of pollutants, improving the biological and chemical safety of drinking water.

Abstract: The present invention provides a three-folding inflatable car roof tent and a storage device thereof. The three-folding inflatable car roof tent comprises a tent main body, composite slide rails, a three-folding bed frame and the storage device; the three-folding bed frame is fixedly installed above a base frame; the tent main body is detachably fixed on the three-folding bed frame; the storage device is of a shell structure that is telescopically adjusted in size; the lower side border of the storage device is in sliding connection with the border of the base frame; and the three-folding bed frame may be stored by the sliding storage device after being folded. The three-folding inflatable car roof tent is relatively light in overall weight, firm in structure and convenient to support and store.

Abstract: This application discloses a power supply system, including: A first end of a bus capacitor is connected to a first end of a power supply, and a second end of the bus capacitor is connected to a second end of a semiconductor switch device. A first end of the semiconductor switch device is connected to a second end of the power supply. An input end of a power conversion circuit is connected to the bus capacitor. Two ends of a resistor are respectively connected to the first end and the second end of the semiconductor switch device. When the semiconductor switch device is switched off, the power supply supplies power to the bus capacitor by using the resistor. When a voltage of the bus capacitor is greater than a first preset voltage, an auxiliary power supply is powered on and the semiconductor switch device is switched off.

Abstract: A powered device (PD) detection device is configured to identify a type of power sourcing equipment. The PD detection device includes a detection circuit and a processing circuit, and the detection circuit is connected to the processing circuit. The detection circuit is configured to: receive hierarchical waveform information sent by the power sourcing equipment, and generate a corresponding first-type signal or a corresponding second-type signal based on the hierarchical waveform information, and is further configured to send the first-type signal or the second-type signal to the processing circuit, where the first-type signal corresponds to first-type power sourcing equipment, and the first-type power sourcing equipment includes at least one of non-standard power sourcing equipment and a direct current adapter.

Abstract: The disclosure relates to a ceramic shell, a mobile terminal and a method for manufacturing the ceramic shell. The ceramic shell includes a multi-layer ceramic blank sheet including a plurality of alternately overlapped ceramic blank sheets having at least one white ceramic blank sheet overlapped with at least one color ceramic blank sheet, wherein two of the plurality of alternately overlapped ceramic blank sheets on an outermost side of the multi-layer ceramic blank sheet are both white ceramic blank sheets.

Abstract: A near-zero maintenance integrated purification device for drinking water supply of villages and towns and a method for treating source water using this device are provided to solve the multi-pollution problems caused by microorganisms, turbidity, iron, manganese, taste and odor, and organic matter in the drinking water sources of villages and towns. The device includes a small-spacing folding plate speed sink regulating water tank, a small diameter tube reactor, a granular active carbon (GAC) slow-speed filter tank, a gravity-driven ultrafiltration membrane tank and an ipsilateral U-turn corridor clean water tank. The near-zero maintenance integrated purification device is applicable to different types of water sources (e.g., groundwater, lake water, reservoir water, spring water, snowmelt water, cellar water and rain water, etc.), and could efficiently remove kinds of pollutants, improving the biological and chemical safety of drinking water.

Abstract: A speech recognition method is provided. The method may include: obtaining speech data and a speech recognition result of the speech data, the speech data including speech of a plurality of speakers, and the speech recognition result including a plurality of words; determining speaking time of each of the plurality of speakers by processing the speech data; determining, based on the speaking times of the plurality of speakers and the speech recognition result, a corresponding relationship between the plurality of words and the plurality of speakers; determining, based on the corresponding relationship, at least one conversion word from the plurality of words, each of the at least one conversion word corresponding to at least two of the plurality of speakers; and re-determining the corresponding relationship between the plurality of words and the plurality of speakers based on the at least one conversion word.

Abstract: This application relates to a vehicle battery swapping method. The method includes: connecting a positioning line of a battery swapping van to a predetermined reference point of a battery-to-be-swapped vehicle; obtaining a distance between a coordinate origin of a hoister of the battery swapping van and the reference point of the battery-to-be-swapped vehicle, and angles of the positioning line with respect to a travel direction, a longitudinal direction, and a vertical direction, respectively, of the battery-to-be-swapped vehicle; and determining, based on the obtained distance and angles, a moving track of an end effector of the hoister. This application further relates to a battery swapping van configured to swap a vehicle battery, an electronic device, and a computer-readable storage medium.