11results about How to "Reduce additional" patented technology

The invention discloses an intelligent signal detection and identification method based on time-frequency feature fusion and an anchor-free detection head. The method comprises the following steps: capturing a wireless signal broadband; carrying out time-frequency transformation preprocessing; signal detection and identification based on a neural network; and converting the time-frequency information. The invention provides a network suitable for signal detection and identification. The network is divided into a backbone network, a neck network and a detection head network. A backbone network composed of a component-convolution block architecture is provided, and the network complexity can be flexibly adjusted to effectively extract features; a multi-scale time-frequency feature aggregation module is inserted into the neck network to efficiently perform feature fusion; the detection head network is changed into an anchor-free mechanism to improve the output efficiency; and the final output of the network is subjected to time-frequency information conversion to obtain the bandwidth, duration and other parameters of the signal. According to the method, support can be provided for rapid and automatic signal detection and identification, and the problems of high human participation degree, high signal detection and identification rate and the like in military communication intelligence reconnaissance are effectively solved.

The utility model discloses a bidirectional power output curtain driver and an electric curtain, the driver comprises a driver shell, a driving motor arranged in the driver shell and a power gear connected with the driving motor, and further comprises a transmission mechanism used for being matched with the power gear; the first output gear and the second output gear are driven by the transmission mechanism, and one of the first output gear and the second output gear is selected to be connected with a curtain in a matched mode. The electric curtain uses the driver. The curtain driver provided by the utility model is adaptive to transmission cases of different models through the same curtain driver structure, thereby facilitating the reduction of the models of the transmission cases and effectively reducing the research and development cost of manufacturers.

The invention relates to the technical field of solid waste utilization, in particular to flow-state solidified soil based on water treatment plant tail mud and a preparation method of the flow-state solidified soil, and the flow-state solidified soil comprises the following components in parts by mass: 10-80 parts of water treatment plant tail mud, 50-100 parts of muck and 16-28 parts of a solidifying material. According to the flow-state solidified soil based on the water purification plant tail mud and the preparation method of the flow-state solidified soil, a mix proportion design and calculation method based on compound doping of the water purification plant tail mud and the high-density soil material in the muck is provided, and the problems that the flow-state solidified soil prepared from the water purification plant tail mud is high in viscosity and lack of fluidity, and the high-density soil material seeps and sinks can be solved; and the quality of the flow-state solidified soil is improved, and the construction waste source reduction and the resource utilization rate are improved.

The present invention discloses an anti-clogging drainage device for water conservancy project construction, which belongs to the technical field of water conservancy projects. The device comprises a water tank, a conveying cylinder is clamped in the water tank, an annular filter is clamped on the surface of the conveying cylinder, a shell is fixedly connected to the outer surface of the conveying cylinder, a water pump is fixedly connected in the shell, the water inlet of the water pump is connected to one end of a connecting pipe, and the other end of the connecting pipe passes through the water tank and is arranged on the lower surface of the inner wall of the water tank. The anti-clogging drainage device for water conservancy project construction, by arranging a water pump, a first gear, a second gear, a spiral shaft, an annular filter and a connecting pipe, enables the device to effectively prevent water impurities from accumulating at one point and causing the problem of clogging of the water inlet port by conveying water by the spiral shaft, and the conveying process can intercept the impurities in the water flow in a flowing manner, thereby improving the filtration efficiency and preventing impurities from entering the water pump, thereby ensuring the normal operation of the drainage work of the device.

The present invention discloses the application of Bacillus amyloliquefaciens and its bacterial agent in the treatment of livestock and poultry feces with black soldier flies, and relates to the field of biological strain utilization and development technology. The Bacillus amyloliquefaciens LYM152 has been deposited in the General Microbiological Center of the China Microbiological Culture Collection Administration Committee on September 17, 2019, and is classified and named Bacillus amyloliquefaciens LYM152, with a deposit number of CGMCC No.18497, and the deposit address is the Institute of Microbiology, Chinese Academy of Sciences, No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing. The Bacillus amyloliquefaciens disclosed in the present invention has the characteristics of antibacterial, deodorizing, and high digestive enzyme activity. Its bacterial agent has a good deodorizing effect in the treatment of livestock and poultry feces, and the effect of strengthening the degradation of livestock and poultry feces in combination with black soldier flies is more significant.

A reconfigurable antenna and a communication device having the reconfigurable antenna include a substrate, a first electrode layer, a second electrode layer, a conductor, two ground wires, and two switches. The substrate has a first surface, a second surface, and a slot penetrating both surfaces. The first electrode layer has a first groove passing through the slot. The second electrode layer has a second groove passing through the slot. The conductor is located within the slot. The two ground wires are located on opposite sides of the first electrode layer. The two switches are located between the first electrode layer and the ground wires. When each switch is connected to its corresponding ground wire, the antenna forms an omnidirectional radiation pattern; when each switch is disconnected from its corresponding ground wire, the antenna forms a directional radiation pattern.

The utility model discloses a cutting and cloth pressing mechanism for a pocket opening machine, which comprises a base component, an external pressing component and an internal pressing component, both the external pressing component and the internal pressing component are fixed on the base component, the external pressing component can realize the functions of opening, folding and pressing pocket cloth, and the internal pressing component can realize the fixation of the pocket cloth and cloth to be sewn. A first limiting assembly and a second limiting assembly in the outer pressing assembly are matched with a third limiting assembly to be meshed and driven by a gear and a rack, the position of a bag opening of a cloth bag is adjusted, and therefore the width and the length of the bag opening are set to be changed, and a modularized pressing block in the inner pressing assembly is formed by combining a plurality of different pressing blocks. Various shapes can be formed according to requirements, the quick switching requirements of multi-specification bag openings are met, and the production efficiency is improved.

The invention relates to the field of environmental protection and resource utilization, in particular to a method for treating pitaya branch waste by combining hermetia illucens larvae with a complex microbial inoculant and application. By adding the chicken manure, the utilization efficiency of the black soldier flies on pitaya branch wastes is improved, and an optimal pitaya branch and chicken manure compounding ratio is found; several strains of functional bacteria are screened from the transformation substrate and are verified to be capable of promoting the transformation of the black soldier flies on the mixture of the pitaya branches and the chicken manure; three strains with different functional advantages are further selected to prepare the complex microbial inoculant, so that the conversion efficiency of the hermetia illucens can be obviously improved, and a new method is provided for the treatment of pitaya branches by a hermetia illucens conversion technology.

The utility model discloses a protective barrier structure which comprises a first vertical rod, a second vertical rod and a transverse rod assembly, and the two ends of the transverse rod assembly are connected to the first vertical rod and the second vertical rod in a buckled mode respectively. The cross rod assembly comprises a first cross rod and a second cross rod, one end of the first cross rod is buckled with the first vertical rod, the other end of the first cross rod is buckled with one end of the second cross rod, and the other end of the second cross rod is buckled with the second vertical rod; and the first cross rod and the second cross rod are configured to have a folded state and an unfolded state. The second cross rods can be conveniently added or reduced according to the size of the edge hole, and the length of the protective barrier structure can be adjusted. The length of the first cross rod and the length of the second cross rod can be adjusted, and the structural size change flexibility of the protective barrier is improved.

The utility model discloses a dynamic focusing device and an external mounting type 3D scanning expansion device, which comprise a base, the base is provided with a concave lens and a convex lens which are coaxial, and the position of the concave lens can be adjusted relative to the position of the convex lens; the driving assembly is arranged on the base and used for driving the concave lens to be close to or far away from the convex lens in the axis direction, so that a focused laser beam emitted by the concave lens and emitted by the convex lens can be located at a negative defocusing position, a zero focusing position or a positive defocusing position relative to a focal plane; the 3D dynamic focusing scanning module can solve the problems that a traditional 3D dynamic focusing scanning module relates to more optical elements and mechanical structures, complexity of a system is increased, and installation, debugging and maintenance are difficult.

A composting method for improving composting to reduce antibiotics, passivate heavy metals and reduce nitrogen loss, which relates to the field of composting. The present invention aims to solve the problem that currently it is impossible to effectively solve the antibiotic and heavy metal pollution in livestock and poultry manure composting and reduce nitrogen loss. The present invention mixes livestock and poultry manure with crop straw, adds antibiotics and heavy metal passivation adjuvants in batches, and adds a compost regulator, adjusts the moisture content and C / N, and then composts. The temperature is controlled during composting, and composting fermentation treatment is performed. The antibiotic and heavy metal passivation adjuvant is composed of carbonized sodium lignin sulfonate, mesoporous nano-silica and red mud. The scheme of the present invention can reduce the environmental pollution of livestock and poultry manure composting and improve the application prospects of livestock and poultry manure composting.