Abstract: A method for preparing aluminum foam sandwich material by rotating friction extrusion and electromagnetic pulse hybrid process includes: step 1: preparing the filler; step 2: processing the filler to prepare a plurality of preforms; step 3: clamping and fixing the plurality of preforms to form a preform assembly; step 4: welding the panel on the surface of the preform assembly to form an non-foaming sandwich material; step 5: heating and foaming the non-foaming sandwich material through a foaming mold; step 6: insulating the foaming mold after completion of foaming; injecting cooling water into the foaming mold after completion of insulation to maintain pressure and shape, forming the aluminum foam sandwich material of the required shape. The aluminum foam sandwich material produced by this method has good interface bonding, no adverse interface reaction, high bending resistance, impact resistance, and excellent sound absorption and insulation properties.

Abstract: Certain aspects of the present disclosure provide techniques for establishing a web session between a computing device and a web-based integrated development environment to create and/or update files (e.g., content files and/or resource files). In the web session, content file(s) can be evaluated in real-time with one or more resource files. Further, in the web session, a set of validation rules of a resource file can be updated by the computing device. To stablish the web session, a first communication connection is established between the computing device and the web-based integrated development environment. With the first communication established, a second communication connection is established for real-time, bi-directional communication between the computing device and a language server instance of the web-based integrated development environment.

Abstract: The present disclosure relates to a frequency modulation device, a switching power supply and a frequency modulation method thereof. The device includes: a waveform generation unit (10) configured to generate a periodic signal required for performing frequency modulation on a clock signal of a switching power supply to be controlled; a frequency modulation unit (20) configured to perform voltage-current conversion and arithmetic processing based on the periodic signal to obtain a frequency modulation current required for performing the frequency modulation on the clock signal of the switching power supply to be controlled; and an RC oscillation unit (30) configured to perform RC oscillation processing based on the frequency modulation current to obtain a frequency oscillation signal as the clock signal of the switching power supply to be controlled.

Abstract: Certain aspects of the present disclosure provide techniques for establishing a web session between a computing device and a web-based integrated development environment to create and/or update files (e.g., content files and/or resource files). In the web session, content file(s) can be evaluated in real-time with one or more resource files. Further, in the web session, a set of validation rules of a resource file can be updated by the computing device. To stablish the web session, a first communication connection is established between the computing device and the web-based integrated development environment. With the first communication established, a second communication connection is established for real-time, bi-directional communication between the computing device and a language server instance of the web-based integrated development environment.

Abstract: Certain aspects of the present disclosure provide techniques for establishing a web session between a computing device and a web-based integrated development environment to create and/or update files (e.g., content files and/or resource files). In the web session, content file(s) can be evaluated in real-time with one or more resource files. Further, in the web session, a set of validation rules of a resource file can be updated by the computing device. To stablish the web session, a first communication connection is established between the computing device and the web-based integrated development environment. With the first communication established, a second communication connection is established for real-time, bi-directional communication between the computing device and a language server instance of the web-based integrated development environment.

Abstract: Aspects of using augment reality for service projects are described. In some implementations, an augmented reality (AR) system receives one or more images of a real-world space, detects a physical object in the real-world space from the one or more images, and identifies the physical object for a service project. The AR system also generates a virtual object associated with the identified physical object and outputs the virtual object for display in an AR environment. The AR system further receives a selection of one or more portions of the virtual object associated with one or more portions of the physical object to be serviced and generates information for performing the service project based on the one or more portions of the physical object.

Abstract: Certain aspects of the present disclosure provide techniques for establishing a web session between a computing device and a web-based integrated development environment to create and/or update files (e.g., content files and/or resource files). In the web session, content file(s) can be evaluated in real-time with one or more resource files. Further, in the web session, a set of validation rules of a resource file can be updated by the computing device. To stablish the web session, a first communication connection is established between the computing device and the web-based integrated development environment. With the first communication established, a second communication connection is established for real-time, bi-directional communication between the computing device and a language server instance of the web-based integrated development environment.

Abstract: The present disclosure relates to a frequency modulation device, a switching power supply and a frequency modulation method thereof. The device includes: a waveform generation unit (10) configured to generate a periodic signal required for performing frequency modulation on a clock signal of a switching power supply to be controlled; a frequency modulation unit (20) configured to perform voltage-current conversion and arithmetic processing based on the periodic signal to obtain a frequency modulation current required for performing the frequency modulation on the clock signal of the switching power supply to be controlled; and an RC oscillation unit (30) configured to perform RC oscillation processing based on the frequency modulation current to obtain a frequency oscillation signal as the clock signal of the switching power supply to be controlled.

Abstract: Aspects of using augment reality for service projects are described. In some implementations, an augmented reality (AR) system receives one or more images of a real-world space, detects a physical object in the real-world space from the one or more images, and identifies the physical object for a service project. The AR system also generates a virtual object associated with the identified physical object and outputs the virtual object for display in an AR environment. The AR system further receives a selection of one or more portions of the virtual object associated with one or more portions of the physical object to be serviced and generates information for performing the service project based on the one or more portions of the physical object.

Abstract: A system detects one or more features of a physical object located in a real-world space based on images or video of the physical object captured by an image capture device, designates the physical object as a controller of the VR environment, and determines an orientation of the physical object in the real-world space based on the captured images or video without receiving control signals or communications from the physical object. The system generates, in the VR environment, a virtual object representative of the physical object based on the orientation and the one or more detected features of the physical object. The system detects a gesture associated with the physical object in the real-world space based on the captured images or video, and changes a position or orientation of the virtual object in the VR environment based on the detected gesture.

Abstract: This disclosure provides systems, methods and apparatus for manipulating virtual objects in a virtual reality (VR) environment. In some implementations, an augmented reality (AR) system determines an orientation of a physical object in the real-world space based at least in part on images or video of the physical object captured by an image capture device, and generates a virtual object representative of the physical object based at least in part on the orientation and the at least one detected feature. The AR system detects movement of the physical object in the real-world space based at least in part on the captured images or video, and manipulates the virtual object based at least in part on the detected movements of the physical object. In some aspects, the AR system can determine the orientation and detect movement of the physical object without receiving control signals or communications from the physical object.

Abstract: Disclosed is a reference voltage circuit with low temperature drift, including a first voltage unit, a second voltage unit and a K times' amplification unit. The first voltage unit is configured to generate a first voltage, with a first end thereof being grounded. The K times' amplification unit is configured to amplify the first voltage by K times, with a first end thereof being connected to a second end of the first voltage unit, and with a second end thereof being connected to a first end of the second voltage unit, wherein K is a constant greater than zero. The second voltage unit is configured to generate a second voltage, with the first end thereof being connected to a current source circuit, and a second end thereof being connected to a third end of the first voltage unit to serve as an output end of a reference voltage (VREF).

Abstract: The embodiments of the present disclosure relate to a technical field of home electrical appliances, and particularly to methods, apparatus, systems, and electronic devices for voice controlling a smart home electrical appliance. The method includes: acquiring speech information of a user; performing a recognition on the speech information to acquire a control command; determining a target home electrical appliance according to the control command, and transmitting the control command to the target home electrical appliance; and acquiring a first execution result sent back from the target home electrical appliance, wherein the first execution result represents a state of the target home electrical appliance.

Abstract: Disclosed is a reference voltage circuit with low temperature drift, including a first voltage unit, a second voltage unit and a K times' amplification unit. The first voltage unit is configured to generate a first voltage, with a first end thereof being grounded. The K times' amplification unit is configured to amplify the first voltage by K times, with a first end thereof being connected to a second end of the first voltage unit, and with a second end thereof being connected to a first end of the second voltage unit, wherein K is a constant greater than zero. The second voltage unit is configured to generate a second voltage, with the first end thereof being connected to a current source circuit, and a second end thereof being connected to a third end of the first voltage unit to serve as an output end of a reference voltage (VREF).

Abstract: A system processes a series of incoming message to generate an outgoing message. In exemplary embodiments, the incoming messages comprise a first event from a wearable holster configured to accept a weapon, then receiving a second event from the wearable holster. The first signal and second signal are compared based on their respective content. The received signals derive from sensor data such as a switch, an accelerometer, a GPS sensor, a wrist device, a head device. The comparison invokes additional processing to determine the contents of a message to be sent to at least one recipient. Contents of messages are captured into a learning model, and when comparing contents of the first signal to contents of the second signal comprises the learning model is used to generate a prediction that causes an alert to be emitted.

Abstract: A system processes a series of incoming message to generate an outgoing message. In exemplary embodiments, the incoming messages comprise a first event from a wearable holster configured to accept a weapon, then receiving a second event from the wearable holster. The first signal and second signal are compared based on their respective content. The received signals derive from sensor data such as a switch, an accelerometer, a GPS sensor, a wrist device, a head device. The comparison invokes additional processing to determine the contents of a message to be sent to at least one recipient. Contents of messages are captured into a learning model, and when comparing contents of the first signal to contents of the second signal comprises the learning model is used to generate a prediction that causes an alert to be emitted.

Abstract: A network-based system and method for quality control is disclosed. The network-based system for quality control includes at least one measuring workstation (1), a web server (20), a measuring module (6), and a measurement information management module (7). Each measuring workstation includes a measuring instrument (10) and a measuring computer (12). The measuring module provides programmable measurement procedures that guide a corresponding measuring instrument to measure a product, and guide a corresponding measuring computer to obtain measurement information from the corresponding measuring instrument. The web server is electrically connected to the measuring computer via an electronic communications network (2) for receiving, accessing and storing the measurement information in a database (21). Users access and maintain information stored in the web server database via maintaining computers (3).

Abstract: A network-based system and method for quality control is disclosed. The network-based system for quality control includes at least one measuring workstation (1), a web server (20), a measuring module (6), and a measurement information management module (7). Each measuring workstation includes a measuring instrument (10) and a measuring computer (12). The measuring module provides programmable measurement procedures that guide a corresponding measuring instrument to measure a product, and guide a corresponding measuring computer to obtain measurement information from the corresponding measuring instrument. The web server is electrically connected to the measuring computer via an electronic communications network (2) for receiving, accessing and storing the measurement information in a database (21). Users access and maintain information stored in the web server database via maintaining computers (3).