79results about How to "Reduce the number" patented technology

The present application provides a connector and a connector assembly that further reduce the number of components and improve the performance of the frame. The connector of the present application is capable of being fitted with a counterpart connector in a first direction, and has a frame having a side wall that surrounds the counterpart connector in a fitted state of the connector, first and second terminals disposed at different positions in a second direction on the inner side of the frame, and a blocking portion disposed between the first and second terminals in the second direction. The side wall is seamlessly continuous throughout the entire circumference of the frame, the frame and the blocking portion are integrated by being formed of the same member, the blocking portion has a linking portion that links one end portion and the other end portion of the frame in a third direction, and the linking portion is fixed to a substrate in a state of being continuously in contact with the substrate in a range from the one end portion to the other end portion of the frame.

This specification pertains to the field of refining and chemical production processing technology, and particularly relates to a method and apparatus for optimizing refining and chemical production plans for a target secondary processing unit. The method includes: obtaining parameters of the secondary processing unit under a refining and chemical production optimization scenario; constructing a nonlinear constraint equation for product output based on the parameters of the secondary processing unit; performing an equivalent transformation on the nonlinear constraint equation to obtain an equivalent transformation equation; extracting the nonlinear constraint terms and performing a Taylor expansion; transforming the Taylor expansion formula into a linear approximation equation based on the proportion of the feed material to the output material of the blending tank, the feed material quantity to the blending tank, and the feed property values ​​of the blending tank, according to the property balance constraints of the blending tank; and then substituting these into the nonlinear constraint equation for product output, thereby transforming the nonlinear constraint equation for product output into a linear approximation equation containing only material information variables. This method effectively ensures model convergence and shortens the solution time.

The application relates to the technical field of numerical control machine tool processing, and particularly discloses a double-sided deburring device which comprises a first conveying part, a second conveying part, a first clamping part, a second clamping part, a first brush and a second brush, the first conveying part and the second conveying part are oppositely arranged, the first clamping part is fixedly connected to the first conveying part, the second clamping part is fixedly connected to the second conveying part, the first clamping part and the second clamping part are both used for clamping parts to be processed, the first brush is arranged opposite to the first conveying part, and the second brush is arranged opposite to the second conveying part. The application has the effect of expanding the application range of the double-sided deburring device.

A circuit breaker includes at least two parallel circuit breaker poles, each circuit breaker pole including a housing. The housings of all circuit breaker poles are assembled to form an outer casing. Each housing contains an operating mechanism and a contact system. The operating mechanism includes a lever, and the contact system includes a cooperating moving contact assembly and two stationary contacts. The lever and the moving contact assembly are rotatably mounted between a pair of mounting sidewalls of the housing. The circuit breaker also includes at least one linkage member, whose two ends are respectively linked to the lever and the moving contact assembly. When the operating mechanism is driven, the linkage member moves along a plane parallel to the mounting sidewalls on the outer surface of the mounting sidewalls. This invention simplifies the structure of the operating mechanism. Furthermore, each circuit breaker pole has a housing, and the linkage member between the lever and the moving contact assembly is located outside the housing, facilitating modular assembly. The linkage member's range of motion is located on the outer surface of the housing, which helps reduce the overall size.

This invention discloses an intelligent oil production system for electric pump wells, a tubing string, and a method of use, relating to the field of downhole communication technology. The system includes a surface control cabinet, an AC carrier cable, a wireless transceiver connector (upper and lower), a DC carrier cable, and downhole intelligent equipment. The surface control cabinet supplies power to the downhole intelligent equipment via the AC carrier cable, the wireless transceiver connector (upper and lower), and the DC carrier cable. The surface control cabinet performs bidirectional AC carrier communication with the wireless transceiver connector (upper and lower) via the AC carrier cable. The wireless transceiver connector performs bidirectional DC carrier communication with the downhole intelligent equipment via the DC carrier cable. This invention reduces the number of cables, solving the problem of the difficulty of laying multiple cables on the external tubing string during construction, while also reducing tubing string costs and production costs.

The application provides a driving circuit and a display device. The driving circuit comprises a first node control circuit, a second node control circuit, N output node control circuits, N driving signal output ends, N output circuits and N output reset circuits; N is an integer greater than or equal to 2; the nth output node control circuit controls the potential of the nth output node according to the potential of the first node; n is a positive integer less than or equal to N; the nth output circuit controls the communication between the nth driving signal output end and the nth output clock signal end under the control of the potential of the nth output node; and the output reset circuit controls the communication between the nth driving signal output end and the first voltage end under the potential of the second node. The application is conducive to realizing a narrow frame and improving the yield of display products.

The invention relates to an outer conductor contact element for a plug connector device, comprising at least one fixed stop which can be engaged behind a cable-side end face of a support sleeve along a longitudinal axis of the plug connector device when the outer conductor contact element is in an assembled state on the support sleeve, the cable-side end face facing away from a front free end of the outer conductor contact element. It is provided that the fixed stop is formed in the outer conductor contact element by means of a positive connector-side edge of a material cut-out provided in the outer conductor contact element, the positive connector-side edge facing towards the front free end of the outer conductor contact element. Alternatively, the fixed stop is formed in the outer conductor contact element by means of a separate stop element which is fastened to an inner wall of the outer conductor contact element. Alternatively, the fixed stop is formed in the outer conductor contact element by means of a punch-formed piece.

The application provides a power module and a power system, the power module comprising: a substrate; a plurality of half-bridge power units connected in series and welded on the substrate, the plurality of half-bridge power units having the same structure; any half-bridge power unit comprising at least one temperature measuring device, at least two power semiconductor devices and at least two unidirectional conducting devices; when the half-bridge power unit comprises one temperature measuring device, two power semiconductor devices and two unidirectional conducting devices, the anode of the unidirectional conducting device is electrically connected to the first end of the power semiconductor device, the cathode of the unidirectional conducting device is electrically connected to the second end of the power semiconductor device, the first end of the temperature measuring device is used as a temperature sampling end, the two power semiconductor devices are a first power semiconductor device and a second power semiconductor device, the second end of the temperature measuring device is electrically connected to the first end of the first power semiconductor or the second power semiconductor, or the second end of the temperature measuring device is electrically connected to the second end of the first power semiconductor or the second power semiconductor.

This utility model relates to an enhanced air mixing device for mixing hot and cold air in scenarios where fresh air is introduced into a mine. It is characterized by comprising: a shaft inlet house, located at the mine's air intake, for mixing the hot and cold air; a cold air inlet unit, located on one side wall of the shaft inlet house, for introducing external cold air into the shaft inlet house; and a hot air inlet unit, located on the other side wall of the shaft inlet house, for introducing hot air into the shaft inlet house. The hot air inlet unit includes: a shaft inlet heating device capable of heating the external atmosphere to generate hot air; and a hot air channel extending into the shaft inlet house, with protrusions on the inner surface of the hot air channel to generate turbulence in the hot air. According to this enhanced air mixing device, cold and hot air in the shaft inlet house can be thoroughly mixed without increasing the number of components, avoiding structural complexity, and preventing increased costs.

The invention discloses a method and a system for simulating correlation of signals between sonar array elements changing along with space. The method comprises the following steps: (1) generating uncorrelated Gaussian white noise; (2) converting uncorrelated Gaussian white noise into Gaussian white noise with spatiality through a spatial correlation generation algorithm; and (3) converting the Gaussian white noise with the spatiality into sonar array element signals with the spatiality through AR (Augmented Reality) filtering. Aiming at certain spatial correlation between marine environment noise caused by limited spacing between array elements of a sonar array, dynamic decomposition is carried out on frequency bands in an effective bandwidth, and then Gaussian white noise with spatial correlation characteristics is synthesized; and the related Gaussian white noise excites the marine environment noise AR model to obtain a signal time sequence between sonar array elements with spatial correlation. According to the method, the sparse characteristic of correlation is fully utilized, the number of filters is reduced, the sparse matrix is adopted to accelerate the calculation process, and the calculation efficiency of the sonar simulation system is effectively improved.

The present disclosure provides a chip test analysis circuit, comprising: an address decoding circuit, configured to generate a first test selection signal and a second test selection signal; an output test circuit, configured to select a corresponding to-be-output test signal from a plurality of to-be-output test signals according to the first test selection signal, and output the selected to-be-output test signal to a test node for output signal test analysis; an input test circuit, configured to select an input test channel corresponding to the second test selection signal from a plurality of input test channels according to the second test selection signal, and input a to-be-input test signal to a corresponding circuit inside a to-be-tested chip through the selected input test channel for internal circuit test analysis; and a test direction selection circuit, configured to generate a test mode selection signal, the test mode selection signal being used to control the output test circuit and the test node to be connected or disconnected, and control the input test circuit and the test node to be disconnected or connected.

The application discloses a control device of a locomotive auxiliary power supply system and relates to the control field of the locomotive auxiliary power supply system. The control device comprises a plurality of auxiliary inverters and a DC 110V charger. A CAN communication board and a CPU control board are arranged in each auxiliary inverter, and the CAN communication board in the auxiliary inverter is connected with the corresponding CPU control board. A CAN communication board, an analog quantity acquisition board and a CPU control board are arranged in the DC 110V charger, the CAN communication board and the analog quantity acquisition board in the charger are both connected with the corresponding CPU control board, the CPU control board in the DC 110V charger is connected with an Ethernet maintenance port and a CAN communication port, data is transmitted to a traction auxiliary converter cabinet gateway board through the CAN communication port, and the data is transmitted to an upper computer through the Ethernet maintenance port. The application simplifies the function of the auxiliary inverter, makes the auxiliary inverter small and simple, improves the output voltage quality, and improves the working performance and service life of the auxiliary load.

The purpose of the present invention is to provide a cam clutch which has a simple structure and which can easily switch operation modes with a small force. Specifically, the cam clutch is provided with: a first biasing means (150) that biases a plurality of cams (136) disposed between an inner ring (110) and an outer ring (120) so as to rotate the cams in the meshing direction, the inner ring (110) and the outer ring (120) being disposed so as to be coaxially rotatable relative to each other; and a second urging means (155) for urging the plurality of cams (136) with an urging force different from the urging force of the first urging means (150) so as to rotate the plurality of cams (136) in the engagement release direction. By means of a switching means (170), the biasing force of one of the first biasing means (150) and the second biasing means (155), which has a larger biasing force on the same cam, is changed to be relatively smaller than the biasing force of the other biasing means, and the operation modes can be switched.

The embodiment of the invention relates to a processing method, electronic equipment, an electronic system, a storage medium and photoetching equipment. The method comprises the following steps: determining a maximum rectangle in a peripheral contour of a curve pattern in a mask plate graph; recursively determining respective maximum rectangles within respective remaining regions between a peripheral contour of the curvilinear pattern and boundaries of the maximum rectangles; and in response to a recursion termination condition being satisfied, generating a processed mask pattern in which each determined maximum rectangle is marked. According to the embodiment of the invention, the number of thin strips in the mask graph data can be remarkably reduced, so that the reliability of mask manufacturing is effectively improved.

The invention discloses a seismic wave numerical simulation method based on k-space compensation and a related device, and belongs to the technical field of oil exploration. The method comprises the following steps: constructing a first-order fractional order Laplace viscous acoustic wave equation of a seismic wave field, and deducing a viscous acoustic wave equation only containing velocity field variables according to the first-order fractional order Laplace viscous acoustic wave equation; converting the viscous acoustic wave equation only containing the velocity field variable into a viscous acoustic wave equation only containing the displacement field variable; deducing a recursion formula of the displacement field according to the viscous acoustic wave equation only containing the displacement field variable, and further obtaining a k-space compensation-based wave field recursion formula according to the recursion formula of the displacement field; and obtaining seismic wave field parameters and underground medium parameters, and inputting the seismic wave field parameters and the underground medium parameters into a k-space compensation-based wave field recursion formula to obtain a seismic wave numerical simulation result. According to the method, the time accumulation error can be effectively suppressed, so that the method is suitable for a larger time step length; and excessive extra calculation amount is not introduced, so that the method is more efficient on the premise of ensuring the precision.

This application provides an illumination light modulator, an illumination device, and a projection device, relating to the field of optical technology. The light modulator has multiple pixel regions, each containing multiple pixel units. The light modulator includes: a power supply layer comprising multiple mutually insulated power supply units; and an electrode layer comprising multiple spaced-apart electrode units, each electrode unit corresponding to a pixel region. Each electrode unit and power supply unit are electrically connected and correspond one-to-one. The power supply unit inputs a voltage to its corresponding electrode unit, and the electrode unit controls the direction or polarization state of light incident on the pixel region corresponding to that electrode unit from the illumination light modulator based on the voltage. The state changes of all pixel units within each pixel region are consistent. This invention achieves the control of multiple pixel units by a single electrode unit at the underlying circuit level rather than the control signal level, resulting in low cost and reliable performance.

The invention discloses a demand-driven reusable binary pointer analysis method, which is used for determining a pointing set and an alias of a given target pointer variable, and comprises the following steps of: S1, recovering a pointer type in a process through a use mode of the variable, and extracting an instruction related to pointer calculation; s2, on the basis of the pointer representation and an execution result of the modeling instruction, abstract interpretation is carried out in the process, a pointer representation set of all pointer variables is obtained, and the result is stored in an intermediate result library; s3, on the basis of an analysis result in the process, determining a to-be-analyzed function as required, and obtaining different pointer representations of the target pointer variable in different functions; and if a certain function is not analyzed, the in-process analysis of the step S1 and the step S2 is triggered for the function. According to the method, a context sensitive strategy and a flow sensitive strategy are realized, the balance of analysis efficiency and precision is realized, and inter-process on-demand pointer analysis can be efficiently carried out.

A direct drive type driver has a ball screw device having a screw, a nut, and a plurality of balls, a piston installed to one end of the screw, and a stroke limiting mechanism that sets a work start time in a first direction in which the screw is directed to the one end. The nut has an end surface facing the first direction and a protruding portion protruding from the end surface. The piston has an opposite surface facing a second direction opposite to the first direction and opposite to the end surface, an avoidance groove portion recessed from the opposite surface in the first direction and extending in a rotation direction with the screw as a center, and a step surface disposed at an end portion of the avoidance groove portion in one direction in the rotation direction among wall surfaces surrounding the avoidance groove portion and facing the other direction in the rotation direction. The protruding portion and the step surface abut to constitute the stroke limiting mechanism.

Embodiments of the present application provide a shower room frame structure and a shower room. The shower room frame structure includes a transverse profile and a vertical supporting profile; and a quick mounting assembly for connecting the transverse profile and the vertical supporting profile. The quick mounting assembly includes a connector and a limiter, the connector is fixedly connected with the transverse profile and is fitted with the vertical supporting profile for positional restriction, and the limiter is connected with the connector and is fitted with the vertical supporting profile for positional restriction. The shower room frame structure provided by the embodiments of the present application realizes the quick assembling of the transverse profile and the vertical supporting profile by utilizing the quick mounting assembly, which can reduce the number of accessories of the shower room, simplify the assembling process of the shower room, and is beneficial for improving the assembling efficiency of the shower room.

The invention provides a motor and an electric compressor provided with the motor. A lead part of a coil led out from a slot can be bundled and stably fixed to an insulator without using a rope. The motor includes a stator (21) having a stator core (22), an insulator (33) provided on the stator core (22), and a coil (23) wound around each tooth of the stator core (22) via the insulator (33), and a lead portion (25) of the coil (23) led out from each slot between the teeth is fixed to the insulator (33) in a state of being bundled along a circumferential direction of the stator core (22). The lead portion (25) of the coil (23) is bundled and fixed to the insulator (33) by the lead portion (25) of the coil (23) led out from another slot.

The present disclosure provides a double-resistance motor control circuit and a motor control system. The double-resistance motor control circuit comprises a main controller, a first phase current sampling circuit, a second phase current sampling circuit and a third phase current sampling circuit, the first phase current sampling circuit, the second phase current sampling circuit and the third phase current sampling circuit each comprise N power conversion units, each power conversion unit is electrically connected with the same phase winding of a different motor, a first sampling resistor is arranged in the first phase current sampling circuit to collect the first phase current of N motors, a second sampling resistor is arranged in the second phase current sampling circuit to collect the second phase current of N motors, the main controller is used to obtain the corresponding third phase current based on the first phase current and the second phase current of each motor, and control the operating state of each motor based on the first phase current, the second phase current and the third phase current; wherein N is a positive integer greater than 1. The double-resistance sampling of the present disclosure can reduce the cost.

A cooling tower water and wind double-drive turbine type rotating water spraying nozzle, comprising a water guide rotor, a water guide stator, a wind turbine and a water turbine; the water guide rotor is connected with the helical guide vane by a rotating shaft, the bottom of the water guide rotor is connected with the water turbine and the wind turbine; the water guide stator comprises a water guide sleeve which is vertically arranged, the top of the outer part of the water guide sleeve is provided with an outer thread connected with a nozzle seat and a wrench position, a coaxial thrust sliding bearing is arranged in the upper part of the cylinder, the water guide rotor is coaxially arranged in the cylinder of the water guide stator, an axial limiting assembly is arranged above the thrust sliding bearing and is connected with the upper shaft neck connected with the rotating shaft which extends out of the thrust sliding bearing to suspend and support the water guide rotor; the helical guide vane is rotationally matched with the inner surface of the cylinder, a plurality of helical guide vanes divide the inner cavity of the cylinder into a plurality of helical flow channels which are connected with the U-shaped flow channel of the water turbine at the bottom to spray water outward. The present application can distribute the spraying water more uniformly, avoid the spraying blind area, reduce material consumption and be beneficial to environmental protection.

The invention relates to an operational circuit, an accelerator, a chip and a board card. The operational circuitry may be implemented as a computing device included in a combined processing device, which may include one or more data processing devices. The combined processing device can also comprise an interface device and other processing devices. And the computing device interacts with other processing devices to jointly complete the computing operation specified by the user. The combined processing device can further comprise a storage device, and the storage device is connected with the equipment and the other processing devices and used for storing data of the equipment and the other processing devices. Through the scheme of the invention, the repeated multiplication operation in the matrix multiplication operation can be simplified into unary operation accumulation based on the counter, so that the dynamic power consumption of hardware can be saved.

The invention discloses a channel measurement method, a terminal and a base station. The channel measurement method executed at the terminal comprises the following steps: receiving configuration information for channel measurement, wherein the configuration information comprises the number of indicated spatial domain and frequency domain feature basis vectors; receiving a reference signal for channel measurement; measuring a channel according to the reference signal, and determining channel state information based on the number of indicated spatial domain and frequency domain feature basis vectors; and reporting channel state information (CSI) to the base station, the CSI comprising a precoding matrix indicator (PMI), and the PMI comprising the non-zero coefficients reported by the terminal and the number of the non-zero coefficients corresponding to at least one layer and / or at least one polarization direction. The invention can reduce the overhead reported by the terminal.

This invention relates to a novel path planning method based on three-level communication and a forward and reverse expansion search strategy. First, the factory is divided into different areas and sensors are deployed. Then, the sensors collect various parameters of a vehicle and send the collected information to the main control platform. The main control platform analyzes the collected information to determine if there are obstacles threatening the forward path, and decides whether to adjust the vehicle's path. When the vehicle's path needs adjustment, the main control platform uses a forward and reverse expansion search algorithm to plan the vehicle's path, obtaining a planned path. The above steps are repeated to obtain multiple planned paths. Finally, a comprehensive evaluation function is constructed to evaluate the multiple planned paths, and the planned path with the highest evaluation is selected as the optimal path.

This invention belongs to the field of daily chemical products and discloses a polysaccharide composition that improves skin immunity and strengthens the skin barrier function, as well as its applications. The polysaccharide composition includes Scutellaria baicalensis polysaccharide, Adenophora stricta polysaccharide, and Trametes versicolor polysaccharide. Through the synergistic effect of these three polysaccharides, it can not only reduce the number of mast cells but also increase antimicrobial peptides and filaggrin; increase filaggrin; and decrease monocyte chemotactic protein-1 and interleukin-6, thereby achieving the effects of improving skin immunity, anti-inflammatory and whitening. Furthermore, it can act as a signaling molecule, widely participating in physiological processes such as intercellular ligand-receptor recognition and intercellular signal transduction, reducing the average relative amplification fold of interleukin-6 expression factor mRNA, and effectively participating in epidermal cell differentiation and skin barrier formation, thus strengthening the skin barrier function; it can be used in the preparation of cosmetics.

This utility model discloses a tunnel fire-fighting device, relating to the field of tunnel fire-fighting technology. The device includes a fire pump, a foam liquid pump, a corresponding industrial water supply pipeline control valve group, a fire alarm control system, a tunnel body, and foam nozzles. Two sets of symmetrically distributed slide rails are fixedly installed on the upper inner wall of the tunnel body. A movable frame is provided on one side of each slide rail. Four evenly distributed drive wheels are rotatably installed on the inner side of each movable frame. A rotating shaft is fixedly installed in the middle of each of the two sets of drive wheels, and a drive assembly is provided at the top of each rotating shaft. This application uses a servo motor to drive the movable frame to move along the slide rails, which can quickly transport the foam nozzles to the fire area. Simultaneously, the movable frame can drive the delivery pipeline to move synchronously, ensuring a continuous and stable supply of foam liquid. This effectively solves the problem of blind spots in fire extinguishing by fixed nozzles and reduces the number of fixed nozzles required, significantly reducing the amount of engineering work and equipment installation costs.

The utility model discloses an improved cover body structure of an air suction silencer of a refrigeration compressor, and belongs to the technical field of refrigeration compressor accessories. Comprising a cover body, the cover body is fixed to the upper opening portion of the shell, an air inlet communicated with a cover body cavity of the cover body extends from the left side of the cover body, and an air outlet communicated with the cover body cavity extends upwards from the top of the cover body; the plastic sealing cover is characterized in that a cover body plastic sealing flange edge is formed at the lower part of the cover body and at the edge part of one outward side around the periphery of the cover body, and the cover body plastic sealing flange edge is matched with a shell plastic sealing flange edge formed at the outer side of the opening part at the upper part of the shell and is sealed and fixed by a plastic sealing strip; a rubber sleeve plastic packaging ring is formed on the outer side of the end, facing the end sleeved with the air inlet, of the rubber sleeve, the end, facing the air inlet, of the rubber sleeve is fixed through the rubber sleeve plastic packaging ring, and the rubber sleeve plastic packaging ring is connected with the plastic packaging sleeve. The utility model has the advantages of reducing the number of parts, reducing the product cost, guaranteeing the assembly quality and improving the assembly efficiency.

This utility model relates to the field of magnetic toys, and more particularly to a magnetic plate track toy. The utility model adopts the following technical solution: a magnetic plate track toy includes a first track panel and a second track panel. Track openings are provided at the midpoints of the four sides of both the first and second track panels. A cross-shaped track is provided on the first track panel between the four track openings, and two sets of arc-shaped tracks are provided on the second track panel between the four track openings. A magnetic suction component is provided between the first and second track panels. The beneficial effect is that by assembling two track panels with different types of tracks to form a magnetic plate, different track panels can be selected for assembly as needed, eliminating the need for multiple magnetic plates of different track types, thus greatly reducing the number of magnetic plates required for assembly and providing high playability.

The application provides a quantum bit state reading circuit and a quantum computing system. The quantum bit state reading circuit comprises a low noise amplifier for receiving a multi-tone reflection signal of a quantum bit state reading resonant cavity and amplifying the multi-tone reflection signal; a first local oscillator generator for generating a first quadrature local oscillator signal required for first down-conversion of the multi-tone reflection signal; a first frequency mixer for receiving the amplified multi-tone reflection signal output by the low noise amplifier and performing first down-conversion operation on the amplified multi-tone reflection signal under the control of the first quadrature local oscillator signal to generate a first down-converted signal; a sampling clock generator for receiving a radio frequency local oscillator signal output by the first local oscillator generator and performing frequency division operation on the radio frequency local oscillator signal to generate a sampling clock signal; and a plurality of bit state detection links for ultimately obtaining state information of a plurality of quantum bits by using a multi-channel frequency division multiplexing technology based on the first down-converted signal and the sampling clock signal.