Abstract: Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion (1) and a rear end portion (2), the front end portion (1) is trumpet-shaped, an inner wall surface of the front end portion (1) is present a pattern array of a microstructure (3), and the microstructure (3) presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (1), is reflected through the pattern array of the microstructure (3) on the inner wall surface of the front end portion (1), and is transmitted from an exit of the rear end portion (2), and a sound pressure of the exit of the rear end portion (2) is 4 times˜8 times a sound pressure of the entrance of the front end portion (1).

Abstract: Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion (1) and a rear end portion (2), the front end portion (1) is trumpet-shaped, an inner wall surface of the front end portion (1) is present a pattern array of a microstructure (3), and the microstructure (3) presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (1), is reflected through the pattern array of the microstructure (3) on the inner wall surface of the front end portion (1), and is transmitted from an exit of the rear end portion (2), and a sound pressure of the exit of the rear end portion (2) is 4 times˜8 times a sound pressure of the entrance of the front end portion (1).

Abstract: A system and method for measuring an image distance of power transmission lines with an unmanned aerial vehicle (UAV). The system includes: a UAV, a master console, and a plurality of cameras. The cameras are configured to collect 2D image data of a power transmission line corridor. The UAV includes a vehicle body, a lidar device, a rotor assembly, a power unit, a flight control processor, a state detection device, and a wireless communication module. The lidar device is configured to collect 3D point cloud data of the power transmission lines. The master console is configured to receive the 2D image data and the 3D point cloud data, and establish a mapping relationship between the 2D image data and the 3D point cloud data; recognize a target object, determine 3D point coordinates of the target object, and calculate a distance from the target object to the power transmission lines.

Abstract: Provided are a phase quadrature four-wavelength demodulation system and method of an optical fiber F-P cavity sensor. The phase quadrature four-wavelength demodulation system of the optical fiber F-P cavity sensor includes a flat ASE broadband light source, an optical fiber circulator, a dense wavelength division multiplexer, a photoelectric detector, and a data acquisition processing unit. The flat ASE broadband light source is connected to the optical fiber circulator, the optical fiber circulator is connected to the dense wavelength division multiplexer, the dense wavelength division multiplexer is connected to the photoelectric detector, and the photoelectric detector is connected to the data acquisition processing unit.

Abstract: Provided are a phase quadrature four-wavelength demodulation system and method of an optical fiber F-P cavity sensor. The phase quadrature four-wavelength demodulation system of the optical fiber F-P cavity sensor includes a flat ASE broadband light source, an optical fiber circulator, a dense wavelength division multiplexer, a photoelectric detector, and a data acquisition processing unit. The flat ASE broadband light source is connected to the optical fiber circulator, the optical fiber circulator is connected to the dense wavelength division multiplexer, the dense wavelength division multiplexer is connected to the photoelectric detector, and the photoelectric detector is connected to the data acquisition processing unit.

Abstract: A system and method for measuring an image distance of power transmission lines with an unmanned aerial vehicle (UAV). The system includes: a UAV, a master console, and a plurality of cameras. The cameras are configured to collect 2D image data of a power transmission line corridor. The UAV includes a vehicle body, a lidar device, a rotor assembly, a power unit, a flight control processor, a state detection device, and a wireless communication module. The lidar device is configured to collect 3D point cloud data of the power transmission lines. The master console is configured to receive the 2D image data and the 3D point cloud data, and establish a mapping relationship between the 2D image data and the 3D point cloud data; recognize a target object, determine 3D point coordinates of the target object, and calculate a distance from the target object to the power transmission lines.

Abstract: A non-transitory medium having machine-readable instructions stored thereon is provided. The instructions include reference-object code to print a three-dimensional object in a coordinate system of a printer. The three-dimensional object includes a first loop portion comprising a length of a cylindrical body that extends arcuately between spaced apart ends thereof in through each axis of the coordinate system. A second loop portion comprising another length of the cylindrical body extends arcuately between spaced apart ends thereof through each axis of the coordinate system. The second loop portion is opposing and coupled with the first loop portion by respective curved leg portions of the cylindrical body to define a continuous loop that circumscribes a virtual axis thereof aligned with a layering direction of the printer. Each portion of the cylindrical body is asymmetrical with respect to each other.

Abstract: In example implementations, a tactile diagnostic part is provided. The tactile diagnostic part includes an array of a plurality of tactile diagnostic parts. The tactile diagnostic parts are to diagnose a printing variability in different locations of a print bed of a three dimensional printer before printing a part. Each one of the plurality of diagnostic parts includes a first component that includes a flexible exterior shell and a second component that includes a resistive structure inside of the flexible exterior shell of the first component.

Abstract: A Misting Blanket Fire Protection system is a solution for preventing buildings from being destroyed by wildfires. The system is easy to install and is an independent system that is able to operate independently from electricity and water supply from the city. This invention is a movable system which composes of a misting blanket, a water source and an engine water pump. The misting blanket releases water sprinkles to wet any building needing protection to prevent from catching fire when a wildfire approaches.

Abstract: The present invention consists of simple phonetic marks combined with alphabet letters to form Phonetic Words for the reader to read words and learn the pronunciation at the same time. The phonetic marks are placed on appropriate letters to form phonetic words. Unique, simple marking rules are created to minimize the use of phonetic marks so the marks do not clutter letters and still retain their function.

Abstract: A refrigeration system includes an evaporator, a compressor compressing a refrigerant coming out of the evaporator, a condensing unit which includes a finned tube guiding the refrigerant from the compressor back to the evaporator; and an energy saving arrangement. The energy saving arrangement includes a water-cooling device frequently introducing a predetermined amount of water to a surface of the finned tube to water-cool the refrigerant within the finned tube for enhancing a cooling efficiency of the condensing unit while being energy efficient. The energy saving arrangement further includes a metering device for controllably pumping the refrigerant from the condensing unit to the evaporator especially when a pressure inside the condensing unit is lower than a threshold pressure.

Abstract: The main purpose of the present invention is to protect a house from destruction by fire. The invention includes the system and method of water coating and water recycling. The water coating system involves wetting the surface of the house. The water recycling system involves recycling the water used for wetting the house to save water and extend the time the water coating system operates. The water coating method has a water pump that pumps water from a water pool to a network of water sprinklers to wet the surface of the house. The water recycling method employs a water collection site to collect the water runoff from the sprinklers and return it back to the water pool for reuse.

Abstract: An air conditioner includes an indoor unit, an outdoor unit, and a connection unit supportively coupled between the indoor and outdoor units at a position that an indoor housing is supported at an interior wall side of the wall while an outdoor housing is supported at an exterior wall side of the wall. The connection unit has a channel communicating between the indoor and outdoor housings that an indoor component of the indoor unit are operatively connected with an outdoor component of the outdoor unit through the channel, such that the connection unit not only forms a support to retain the indoor and outdoor units in position but also provides a communication to link the indoor component with the outdoor component.

Abstract: A system and method that utilizes common symbols for marking the tones of alphabet letters of different languages. The marking system and method employs the symbols from the standard English typing keyboard to denote tones. There are seven phonetic tone marks. Each mark represents a unique tone. The system can be applied to any alphabetic writing letters of different languages to denote specific language tones. The method makes it possible for alphabetic writing of any kind of language and for people to effectively capture the tones of words in different languages.

Abstract: An embodiment of the invention is a data mining method, system, and computer program product for correlating drug, diagnosis, and/or treatment codes to permit health plans to recover, from a liable third party, costs expended on an insured.