12results about How to "Reduce layout requirements" patented technology

The invention discloses an image matting model training method, an image matting method and device, equipment and a medium. The image matting model training method comprises the following steps: acquiring a data set for training; constructing a background probability model formula; marking each pixel point of all the image frames by using the sum obtained by the background probability model formula to obtain a probability thermodynamic diagram of whether the pixel is the background, and obtaining a binary portrait foreground label according to the thermodynamic diagram; using the chrominance component of the data set for training and the binarized portrait foreground label to train a color threshold model of the multivariate nonlinear regression model; brightness and chrominance components of image blocks are randomly acquired in a bbox range, and a nonlinear regression model is trained to represent a calculation model for fitting an edge part of a foreground portrait into an expected fuzzy weight under blue or green backgrounds under different conditions. According to the method, the foreground imaging effect can be optimized during superposition operation, and the computing power of an image matting algorithm is reduced.

The utility model relates to the technical field of audio processing, and discloses an audio processing system, which comprises a central processing unit, a digital audio processor and a microphone array module, the microphone array module comprises 2n microphones which are arranged in a bilinear manner; the central processing unit is connected with the digital audio processor, and the digital audio processor is connected with the 2n microphones respectively. Therefore, the problem of space arrangement limitation of the annular microphone array can be solved, and the problem of poor sound source positioning of the linear microphone can be solved.

The utility model provides an interface control circuit and a power supply device, the interface control circuit comprises a control circuit, a power supply circuit and an interface module, the first connecting end of the interface module is electrically connected with the output end of the power supply circuit and the input end of the control circuit respectively, and the second connecting end is grounded. The output end of the control circuit is electrically connected with the input end of the power supply circuit, the access condition of a load at the plugging end of the interface module can influence the level state of the input end of the control circuit, and the control circuit can control the power supply circuit to be switched on or switched off according to the level state of the input end of the control circuit. The power supply circuit supplies power to the load through the interface module, and the power supply circuit does not output voltage to the interface module under the condition that the power supply circuit is disconnected. The interface control circuit is simple in structure, low in requirement for product layout, capable of meeting design requirements of circuit boards small in size, low in power consumption and low in processing cost.

The application provides a core making system, and relates to the technical field of core making.The core making system comprises a sand mixing device, a core making device, a movable sealing cylinder and an automatic pouring device.The bottom of the sand mixing device is provided with a sand mixing outlet.The core making device is separately arranged on the same installation surface as the sand mixing device, and the top of the core making device is provided with a core sand receiving hopper.The movable sealing cylinder is movably arranged between the sand mixing device and the core making device.The automatic pouring device is arranged on one side of the core making device.Compared with the prior art, the core making system provided by the application can reduce the arrangement requirement of the whole core making unit in the height direction, and the height can be lower, the installation height requirement of the factory building is also lower, and the system is more flexible.Meanwhile, the core sand is conveyed by using the independent movable sealing cylinder, the working environment on site can be kept clean, and the split structure is convenient for maintenance.

The utility model discloses a low-cost driving circuit for an air compressor of an ECAS system, and the low-cost driving circuit comprises a high-side driving control circuit which carries out the high-side driving control of the air compressor through a PWM signal outputted by an MCU; the low-side driving control circuit is used for carrying out low-side driving control on the air compressor by utilizing the PWM signal output by the MCU; the low-side driving control circuit is connected with a low-side protection circuit, and the low-side protection circuit performs current sampling on the driving control circuit, performs low-side overcurrent protection and transmits a sampling signal to the MCU; according to the utility model, the MCU is connected with the high-side driving control circuit and the low-side driving control circuit, so that the PWM signal output by the MCU is utilized to carry out high-side and low-side driving control on the air compressor; the protection circuit is arranged, high-low side overcurrent protection can be carried out, the structure is simple, control is easy, safety and reliability are achieved, the requirement for circuit layout is low, and the production cost of the high-low side driving circuit of the air compressor of the ECAS system is reduced.

The embodiment of the utility model provides a cockpit communication system and a vehicle, the cockpit communication system comprises a first host and a second host, the first host and the second host are in communication connection, and the first host and the second host are configured to mutually transmit multimedia signals through a time sensitive network. According to the embodiment of the utility model, the first host and the second host are connected through the time-sensitive network, and audio signals and video signals can be transmitted through a communication mode, so that on one hand, the design of internal circuits of the first host and the second host can be simplified, and the PCB area occupied by communication connection of the first host and the second host is reduced; the hardware cost is reduced; and on the other hand, the time-sensitive network is used for replacing A2B and Ethernet, so that the number of connecting wires between the first host and the second host is small, the EMC risk of the vehicle is reduced, and the reliability of the cabin communication system is improved.

The utility model relates to a heat preservation module for a kiln and the kiln. The heat preservation module comprises a hollow module main body, the module body comprises a supporting frame in a regular shape and a heat preservation layer arranged along the inner side of the supporting frame, and the heat preservation layer is connected with the supporting frame through an anchorage device. The supporting frame is provided with a first linear groove; the module body is detachably connected with the kiln based on the first linear groove, and the module body is movably arranged in the kiln based on the first linear groove. The first linear groove is formed in the module body to achieve installation and movable arrangement of the module body, and the installation structure of the module body can be effectively simplified. Besides, the first linear groove can achieve the overall bearing effect in the mode that the side face or the bottom face of the first linear groove makes contact with the supporting structure, the installation flexibility is effectively improved, the structure and arrangement requirements of the supporting structure can be lowered, and the service life of the supporting structure is prolonged. And further, the influence of impurities, dust and the like in the kiln on disassembly, assembly and movable arrangement of the heat preservation module can be effectively overcome.

The invention discloses a deep rock mass fracture seismic source mechanism and damage evolution four-dimensional imaging analysis method. The method comprises the steps that 1, deep rock mass in-situ sampling is carried out; step 2, loading test and parameter acquisition; step 3, establishing an acoustic emission monitoring system; step 4, data analysis and visualization processing; according to the invention, based on a double-difference seismic positioning algorithm, a seismic source position of a microearthquake generated in a crack development process is positioned and the crack development process is monitored; through combination of data about rock mass components and basic mechanics in basic physical and mechanical parameter tests, stress and strain data collected in a uniaxial loading test and acoustic emission data collected by acoustic monitoring equipment, analysis and data combination are carried out on a monitored deep rock mass from various scales; the crack convergence criterion and the acoustic emission criterion are generated, the data source comprehensiveness of the method is improved, and the problem of unsatisfactory uniformity hypothesis occurring in the deep rock mass research process is solved.

The utility model provides a lubrication oil return system, a lubrication system and a turbine lubrication system. The lubrication oil return system comprises a first oil pool, a second oil pool, a siphon oil return pipeline and a driving pipeline. The first oil pool is used for storing and collecting lubricating oil; the second oil pool is used for recycling the lubricating oil, and the liquid level in the second oil pool is lower than the liquid level of the first oil pool; the siphon oil return pipeline comprises a liquid suction end and a liquid outlet end, the liquid suction end is communicated with the first oil pool, and the liquid outlet end is communicated with the second oil pool; and the driving pipeline is connected with the target section of the siphon oil return pipeline in parallel, a fluid driving element is arranged on the driving pipeline, and a first stop valve is arranged on the target section. According to the scheme, conveying of lubricating oil is achieved through the siphon effect, the oil return pipeline does not need to be strictly arranged downwards in an inclined mode, only the height difference between the first oil pool and the second oil pool needs to be guaranteed, the arrangement requirement of the oil return pipeline is lowered, and pipeline arrangement in a complex environment is facilitated.

The invention discloses a target object throwing project site dot matrix identifier combination which comprises a first type dot matrix identifier and one or more second type dot matrix identifiers, and the first type dot matrix identifier forms a project area capable of being recognized by naked eyes on a site. The item area is divided into a plurality of sub-item areas by the one or more second-type dot matrix identifiers, one sub-item area is at least provided with one starting dot matrix identifier, and the track of the target object effectively thrown at any starting dot matrix identifier is located right above the sub-item area to which the starting dot matrix identifier belongs. According to the invention, the corresponding relation between the throwing score and the moving individual can be judged more easily.

The utility model discloses a high luminous efficiency lens which comprises a lens body, the lens body is provided with an incident plane and an emergent plane, the lens body comprises a light gathering area arranged in the middle of the lens body and a light uniformizing area annularly arranged on the peripheral side of the light gathering area, the incident plane of the light gathering area is a plane and is smooth, and the emergent plane of the light uniformizing area is smooth. The emergent surface of the light gathering area is a convex surface and is provided with a Fresnel structure, the emergent surface of the light uniformizing area and the surface of the Fresnel structure are respectively provided with a light mixing fine structure, and the incident surface of the light uniformizing area is provided with a plurality of concentric and continuously distributed annular convex lines. The structural design of the incident plane and the emergent plane of the lens ensures the light transmittance of the lens, so that on the basis that the lens enables a lamp to achieve first-level energy efficiency or second-level energy efficiency, the requirement for high light efficiency is met, the effect that internal electronic elements, wires and other structures cannot be observed from the emergent plane side is achieved, the lens is suitable for aluminum substrates with different lamp bead arrangements, the applicability is wide, and the cost is low. The requirement for arrangement of the aluminum substrates is lowered, and the purchase cost of the aluminum substrates is lowered.