29results about How to "Guaranteed growth" patented technology

The utility model relates to agricultural equipment for improving edible and medicinal fungus cultivation soil, and belongs to the technical field of edible (medicinal) fungus cultivation. The agricultural tractor mainly comprises a material bin and a liquid medicine tank which are both mounted on a frame at the rear end of the agricultural tractor, a cloth conveying belt is mounted at the bottom of the material bin, a liquid medicine spraying device is mounted at the bottom of the frame and connected with the liquid medicine tank through a booster pump, and a ploughing device is mounted at the tail end of the frame. The agricultural tractor walks along edible (pesticide) fungus planting ridges, materials used for improving soil in the material bin are evenly laid on the ridges through the material distribution conveying belt, a soil improvement agent in the liquid medicine tank is sprayed on the ridges through the liquid medicine spraying device, ploughing and mixing are conducted through the ploughing device, even stirring is guaranteed, and the soil improvement effect is guaranteed. The growth of edible (medicinal) fungi can be better promoted; and the working efficiency is improved, the labor intensity is reduced, and the labor cost is reduced.

An endoscope image enhancement method, system, medium and product, relate to the field of image processing. The method comprises: acquiring an initial endoscope RGB image and decomposing it into three gray channels R, G and B; constructing an initial gray mapping function to map all initial gray values to target gray values; based on the set of target gray values of each pixel point, determining the optimal mapping parameters corresponding to each gray channel through a preset optimization objective function, so that the color difference of the enhanced image reaches a preset enhancement ratio with respect to the color difference of the initial image; updating the initial gray mapping function to obtain the optimal gray mapping function corresponding to each gray channel; mapping all initial gray values to optimal gray values and fusing all gray channel images to obtain an enhanced endoscope RGB image. The present application can meet the high-precision detection requirement of identifying defects or abnormalities through color difference.

This invention discloses a LiDAR point cloud data completion system and method based on a PCN model, belonging to the field of point cloud data processing technology. It is used to complete LiDAR point cloud data with complex occlusion. The system includes a data loading module, a data processing module, a data completion module, a model training and optimization module, and a data visualization module. The method includes acquiring raw point cloud data files, reading and preprocessing multi-format point cloud files, constructing a dataset, building a point cloud data completion model based on a PCN model, training and validating the model based on the dataset, acquiring a weight file, and performing data completion on point cloud data with complex occlusion based on the weight parameters. This invention solves problems such as poor data format compatibility of existing PCN models, numerical overflow or training instability when the point cloud data coordinate range is large, and low robustness of point cloud file matching and loading, thereby improving the accuracy of sparse point cloud data completion.

The utility model discloses a kind of storage devices for rice finished oil, including support frame, the support frame is clamped and mounted oil tank, rotary setting rotating rod in oil tank, rotating rod upper end penetrates oil tank upper end cover, its end socket joint ring handle, lower end is connected on axle seat, the lower end of the bottom scraper is clamped and connected on the outer curved surface of axle seat, the upper end of bottom scraper is connected on the axle sleeve by short knife support, bottom scraper upper side is provided with side scraper, the cutting edge of side scraper and bottom scraper is attached to tank inner wall and lower hopper inner wall, lower hopper is connected to oil tank lower end, the both ends of side scraper are connected on axle sleeve by long knife support, axle sleeve is socketed on rotating rod, lower hopper lower end is connected oil discharge pipe;With simple structure, reasonable in design, novel and unique thought, by injection hopper to inject rice finished oil into oil tank to store, and oil residue will be deposited in edible oil storage process, by two groups of scraper on inner wall rotation scraping and cleaning oil residue, can avoid oil residue to be bonded on tank inner wall, in addition, rice finished oil of oil tank is discharged thoroughly, ensure that oil tank has no residual oil storage.

The invention discloses a Ka-band broadband low-noise amplifier based on a mixed feedback mode and a design method and device thereof. The Ka-band broadband low-noise amplifier comprises an input matching network, a single-section microstrip line coupling feedback network, an inter-stage matching network, a resistance negative feedback network, a three-section microstrip line coupling feedback network and an output matching network. And an active bias network is assisted to ensure the working stability. The circuit is composed of two stages of circuits, the preceding stage circuit adopts a cascode transistor amplifier to minimize noise, and the backward stage circuit adopts a cascode structure to improve linearity and bandwidth. Simulation results show that in the frequency band of 25-40 GHz, the amplifier achieves the excellent performance that the gain is higher than 20 dB, the flatness is 0.6 dB, the noise coefficient is 1.43-1.75 dB, the output 1dB compression point is larger than 5.5 dBm, and the direct-current power consumption is only 40.6 mW. According to the low-noise amplifier, the problems of gain roll-off, high noise, limited bandwidth and the like of a traditional low-noise amplifier in broadband application are solved by innovatively combining a resistance negative feedback technology and a microstrip line coupling feedback technology.

The invention discloses an ultra-short pulse optical parametric oscillator based on a bicrystal structure, and relates to a laser and an assembly, and the oscillator comprises a first beam shaper (2) which is used for shaping idler frequency light (1); a second beam shaper (4) for shaping the pump light (3); a dichroscope (5); the first nonlinear crystal (6) is arranged on a light emitting path of the dichroscope (5), and the first nonlinear crystal (6) is used as an input coupling mirror of the optical parametric oscillator; the second nonlinear crystal (7) is arranged on a light emitting path of the first nonlinear crystal (6), and the first nonlinear crystal (6) and the second nonlinear crystal (7) form a resonant cavity; and the three-direction color mirror (9) is arranged on a light emitting path of the second nonlinear crystal (7) and is used for separating the pump light, the signal light (8) generated by nonlinear frequency conversion and the amplified idle frequency light (1) and transmitting and outputting the idle frequency light. The conversion efficiency of the optical parameter amplification process is improved, and the overall amplification performance of the optical parameter amplifier is guaranteed.

This utility model discloses a lotus planting pond, including a planting pond body and a water storage tank. Multiple partitions are fixed inside the planting pond body, each partition having a drainage structure. A water pump is installed between the planting pond body and the water storage tank to pump water from the storage tank into the planting pond body. A water outlet structure is provided on one side of the planting pond body, including outlet pipe one, outlet pipe two, and outlet pipe three. This application, through the planting pond body, partitions, drainage structure, and water outlet structure, allows for corresponding adjustments to the water level in the planting pond body at different growth stages of the lotus, ensuring optimal water levels for lotus growth during the seedling, growth, and flowering stages. This helps guarantee the survival rate and growth vigor of the lotus at different stages, resulting in better lotus growth and enhanced ornamental value.

The application provides a pickling unit automatic speed control method and system based on multi-factor constraints, and relates to the technical field of cold-rolled strip steel production. In view of the defects that the existing control relies on manual operation or primary automation and is difficult to cope with multiple constraints and instantaneous working conditions, the method comprises the following steps: constructing a multi-factor constraint model covering process, equipment, logistics, acid liquid and instantaneous working conditions; collecting corresponding data in real time; dynamically calculating a global optimal speed setting value through multi-layer decision logic, calculating a basic speed first and then superimposing an instantaneous working condition constraint, and directly triggering emergency disposal through high-priority alarm; issuing an instruction for execution and closed-loop feedback, and combining machine learning for self-learning optimization. The application realizes automatic intelligent control of the unit speed, guarantees quality and equipment safety, improves production efficiency and continuity, and reduces energy consumption cost.

The utility model discloses a vehicle girder structure which comprises longitudinal beams, cross beams and a reinforcing beam, a plurality of cross beams are fixed on the two longitudinal beams, the reinforcing beam is further fixed at one end of each longitudinal beam, and the reinforcing beam is located on the end portion of a girder close to a vehicle head. The stiffening beam is located at the head position of the girder, the stiffening beam needs to be connected with a vehicle head at the position, the number of functional components is large, a vehicle can be provided with a mechanism for supporting a compartment to tilt at the position, and therefore the damage risk of the girder at the position is large. The reinforcing beam is fixed between the two longitudinal beams, the bearing capacity and the shear and deformation resistance are enhanced, after reinforcement, larger prestress can be borne, other functional components can be installed at ease, the connection performance with a vehicle head is enhanced, the safety coefficient is improved, and the service life is longer.

The utility model relates to a kind of municipal inspection well mouth suspension formwork devices, its structure includes support frame, adjustable suspension mechanism and adjustable well mouth formwork;Adjustable well mouth formwork is enclosed into circle, adjusting hole is respectively set in the two ends of adjustable well mouth formwork, and fastening bolt is threaded in adjusting hole, the two ends of adjustable well mouth formwork are fixedly connected by fastening bolt, at least three adjustable suspension mechanisms are provided on support frame, adjustable suspension mechanism lower end is connected with adjustable well mouth formwork.It also includes two adjustable inner support rods, four insertion sleeves are provided on the inner wall of adjustable well mouth formwork, two adjustable inner support rods are cross set, the two ends of adjustable inner support rod are respectively inserted with one insertion sleeve, the inner diameter of insertion sleeve is greater than the diameter of adjustable inner support rod end portion.The utility model can effectively guarantee the structure size, position and elevation of inspection well well mouth, and can effectively improve construction quality.The utility model is simple to install, convenient to adjust, and is convenient for repeated use.

The present invention relates to a visual operation and maintenance management system for a data center, and relates to the field of operation and maintenance management technology, including a cloud platform building module, the cloud platform building module including a three-dimensional model unit, a download unit and a labeling unit. The present application uses the cloud platform building module to first use the three-dimensional model unit to build on the cloud platform. In this process, even if the three-dimensional model occupies a large amount of memory, operations such as adding the three-dimensional model can be guaranteed. At the same time, the present application uses the download unit to use the download unit to realize downloading of relevant information of the three-dimensional model unit on the cloud platform to a user end, so that when the user end uses it, it only needs to download the required part through the download unit, which saves the information occupied by the user end, and can also ensure the operation and maintenance of the facilities, and ensure the timeliness of the operation and maintenance data processing of the data center.

The utility model discloses a synergistic evaporative condenser which comprises a fan module, a water tank module and a coil pipe module, the coil pipe module is composed of at least one coil pipe module body which is detachably connected, and the fan module, the water tank module and the coil pipe module respectively comprise a shell. Shell ports of the fan module, the water tank module and the coil pipe module are all fastened and connected through bolts, a snakelike coil pipe is installed in a shell of the coil pipe module, a spraying pipe parallel to the snakelike coil pipe is installed at the top of the snakelike coil pipe, spraying heads are evenly installed on a pipe body of the spraying pipe, and the spraying heads are connected with the snakelike coil pipe. An inlet and an outlet of the snakelike coil pipe and an inlet of the spraying pipe extend to the outer side of a shell of the coil pipe module, the inlet and the outlet of the snakelike coil pipe and the inlet of the spraying pipe which are adjacent up and down are connected with flow dividing pipes through flanges, and production loss caused by overall shutdown is avoided through the rapid isolation function of a fault unit; and the unnecessary maintenance workload is also reduced.

The invention relates to the technical field of slope restoration, and discloses a mine slope ecological restoration construction device which comprises a protective net, a plurality of fixed drill rods are arranged outside the protective net, each fixed drill rod comprises a drill bit arranged at the bottom, a storage block used for storing water is arranged outside the fixed drill rods, and a connecting pipe is arranged outside the storage block. The connecting pipe comprises a transverse pipe and a vertical pipe and is connected with a plurality of storage blocks in a rectangular array; the side nail rods are pushed to expand outwards, the expansion angle of the side nail rods can tend to 90 degrees, the reinforcing effect of the side nail rods on the fixed drill rod is effectively guaranteed, when the fixed drill rod is nailed into a mine side slope, the connecting strength of the fixed drill rod and a soil layer is effectively improved through the fixed drill rod diffusing the side nail rods outwards, and therefore the protection strength of the protective net on the side slope is effectively improved, and the service life of the protective net is prolonged. And the fixing drill rods are simple in overall structure and convenient to manufacture, meanwhile, the operation process of reinforcing the protective net through the fixing drill rods is simple, and the using effect of the device is further guaranteed.

The invention relates to the technical field of soil improvement, in particular to an ecological soil improvement method for a hilly area, which comprises the following steps: planting robinia pseudoacacia saplings to a field in spring; collecting robinia pseudoacacia fallen leaves after the robinia pseudoacacia fallen leaf period begins, returning the robinia pseudoacacia fallen leaves to the field, and removing the robinia pseudoacacia from the field after the robinia pseudoacacia The problems of soil acidification and organic matter content reduction in the hilly area, influence on a soil ecosystem, inhibition of normal growth of crops, and reduction of quality and yield of agricultural products can be solved.

The utility model provides a multifunctional collecting bag which comprises a bag body, the front side of the bag body is fixedly connected with an air inlet and feed pipe, one end, extending into the bag body, of the air inlet and feed pipe is provided with an air guide and material guide port, the left side and the right side of the bag body are fixedly connected with an air guide cover, a hole is formed in the area where the bag body is connected with the air guide cover, and an upper layer filter screen is connected in the hole. The inner bottom of the wind scooper is fixedly connected with a lower layer filter screen, the bottom end of the wind scooper is provided with an air outlet heat dissipation opening, and the bottom of the back face of the bag body is provided with a discharging opening. The collecting bag is connected with the interface of the external machine, and the wind scooper, the upper filter screen and the lower filter screen are externally connected to the collecting bag, so that fine particle impurities such as materials, wind and dust are collected, guided and effectively stacked, meanwhile, attenuated wind and heat are filtered and discharged, stacking of the materials is guaranteed, and the dust removal efficiency is improved. The escape is avoided, and the pollution to the working environment is reduced.

The application relates to the technical field of vehicle bodies, and provides a crash beam assembly and a vehicle. The crash beam assembly of the application is suitable for being connected at the end of a vehicle body longitudinal beam, and comprises a crash beam body and energy absorption boxes arranged at the two ends of the crash beam body. The width of the middle part of the crash beam body in the up-down direction of the whole vehicle is smaller than the width of the two ends of the crash beam body in the up-down direction of the whole vehicle, the crash beam body is integrally stamped and formed, and a reinforcing rib line is arranged on the crash beam body. The reinforcing rib line extends along the length direction of the crash beam body, and the reinforcing rib line is recessed from part of the crash beam body to the side where the energy absorption box is located. The application can reduce the influence on the heat dissipation effect of the radiator of the vehicle, can increase the structural strength of the crash beam, and is beneficial to improving the overall quality of the vehicle.

This application relates to an image processing method, apparatus, and computer device. The method includes: downsampling an image to be processed to obtain a downsampled image; generating an initial illumination image based on pixel information of each pixel in the downsampled image; performing FGS filtering on the initial illumination image to obtain an intermediate illumination image; performing brightness transformation and upsampling processing on the intermediate illumination image to obtain a target illumination image of the same size as the image to be processed; and using the target illumination image to enhance the brightness of the image to be processed to obtain the target image. This method can reduce the computational load in the image enhancement process without affecting the image enhancement effect, making it suitable for computer devices with lower computing performance and expanding its applicability.

The utility model discloses an improved integral type flexible container belongs to the container transport device technical field, including bag body, bag bottom, feed port and sling, bag body, bag bottom, feed port are all integrally made into shape on a piece of cylindrical base cloth, the cylindrical base cloth is square cylindrical base cloth, and the bag body top is the feed port, and the bottom is the bag bottom of sealed suture type, the bag body on the side of feed port is provided with the integrated folding reinforcing interlayer, and the folding reinforcing interlayer is used in cooperation with the connection of sling, the sling end embeds in the folding reinforcing interlayer, and the sling end is connected by the fastening suture of multiple suture lines between the folding reinforcing interlayer, and the folding reinforcing interlayer is cut and folded by the bag body, and the folding reinforcing interlayer is at least two layers of folding. The utility model improves the structural strength of the connection of sling and bag body, effectively prevents the bag body damage in the process of hoisting, improves the bearing safety and service life of flexible container, and improves the product performance.

The utility model discloses an elevator car reinforcing device, and particularly relates to the technical field of elevator cars, the elevator car reinforcing device comprises a concave steel plate and a second connecting plate, both sides of the bottom end of the concave steel plate are provided with mounting grooves, a first connecting plate is movably connected in the mounting grooves, and the bottom end of the first connecting plate is fixedly connected with a first reinforcing steel plate; the second connecting plate is fixedly connected to the bottom end of the first connecting plate, a second reinforcing steel plate is arranged below the first reinforcing steel plate, and a third reinforcing steel plate is arranged below the second reinforcing steel plate. By arranging the four layers of protection steel plates from top to bottom, the elevator car can be effectively protected after accidentally falling, the occurrence of damage to the bottom of the elevator car is reduced, secondly, all the layers are movably connected and can move up and down by a certain amplitude, the arrangement of traditional rigid connection is abandoned, breaking is not prone to occurring, and the service life of the elevator car is prolonged. And in cooperation with the structures such as the elastic piece and the buffer piece, the pressure during falling can be effectively buffered, and then the protection capacity for the lift car and personnel in the lift car is improved.

The utility model discloses a water inlet filter box for a potato breeder's seed aerosol culture seedbed, and relates to the technical field of potato breeder's seed culture. The device comprises a box body, an L-shaped liquid adding pipe is fixedly connected to the upper side of the left face of the box body, a guide-out pipe is fixedly connected to the lower side of the right face of the box body, a first partition plate is fixedly connected to the upper portion of the left side of the inner wall of the box body, and a second partition plate is fixedly connected to the position, located on the right side of the first partition plate, of the inner wall of the box body. A sponge block body is jointly clamped between the first partition plate and the second partition plate, a connecting block is fixedly connected to the top surface of the sponge block body, the top surface of the connecting block penetrates through the upper side of the inner wall of the box body and extends to the top surface of the box body, and a first replacement plate is fixedly connected to the top surface of the connecting block. The potato breeder's seed recycling device can ensure the effect of completely filtering impurities in recycled water, ensures the secondary use of water through the multi-stage filtering effect, avoids the possibility of disease incidence of potato breeder's seeds, and ensures the normal growth of the potato breeder's seeds.

The embodiment of the specification provides an optical sensing system and a digital sampling signal calculation method. The system comprises a slope signal generator, a digital logic circuit and a plurality of column circuits; the slope signal generator is used to generate a slope signal and transmit the slope signal to the column circuits; the slope signal comprises a signal with gradually changing signal strength over time, and the signal strength change speed of the slope signal corresponds to the amplification multiple of a photosensitive electric signal; one of the plurality of column circuits is used to receive the photosensitive electric signal, and output a photosensitive gain signal to the digital logic circuit according to the slope signal and the photosensitive electric signal; the photosensitive gain signal comprises a digital signal corresponding to the photosensitive electric signal after signal strength amplification; and the digital logic circuit is used to calculate a digital sampling signal according to the photosensitive gain signal. The above system reduces the area overhead of the chip corresponding to the optical sensing system, and improves the application range of the corresponding optical sensing chip.

The application discloses a kind of distributed array reconstruction super degree of freedom interference null broadening method, interpolation is carried out to virtual array element to distributed array, wherein transformation region contains all signals;Solving the transformation matrix of each region;According to the transformation matrix of solving, the covariance matrix of virtual array is constructed, and color noise is removed;Solving transformation error matrix, and further solving error covariance matrix;Covariance matrix and guide vector under error constraint are constructed;Spatial spectrum function is constructed, and spatial spectrum function is carried out space domain extension using window function;Add virtual interference spectrum to the spatial spectrum function after space domain extension;Reconstruction interference noise covariance matrix;According to MNV criterion, optimization weight is calculated.The application is suitable for distributed array, reduces inherent cost, increases array system degree of freedom by virtual array element interpolation, effectively broadens null while guaranteeing main lobe gain, solves the problem that interference source deviates from preset direction of arrival, improves array anti-interference performance.

The invention discloses a degradable mulching film prepared by compounding starch wastewater with bamboo fibers and a preparation method of the degradable mulching film, and belongs to the technical field of agricultural mulching films. The mulching film is prepared from the following components in parts by weight: 75 to 90 parts of starch wastewater, 20 to 30 parts of bamboo fiber, 10 to 18 parts of polyvinyl alcohol, 18 to 30 parts of glycerol, 8 to 15 parts of cross-linking agent and 5 to 10 parts of filler. The defect that starch is difficult to form a film is effectively overcome, and powerful support is provided for application of biomass starch and bamboo fibers in the field of degradable plastics. In addition, starch wastewater is used as a raw material, so that the production cost can be reduced to a certain extent; the starch wastewater is used as process water of the bamboo fiber reinforced starch-based composite membrane, and the process can also counteract the treatment cost of the starch wastewater.

The application provides a fusion array antenna and a base station, the fusion array antenna comprising: a reflecting plate, a plurality of high-frequency arrays and a plurality of low-frequency arrays; the plurality of high-frequency arrays and the plurality of low-frequency arrays are arranged on the reflecting plate; each high-frequency array comprises a plurality of high-frequency radiation units; each low-frequency array comprises a plurality of bowl-shaped low-frequency radiation units and a plurality of cross-shaped low-frequency radiation units; and the plurality of cross-shaped low-frequency radiation units in each low-frequency array are embedded in the high-frequency array. In the fusion array antenna, the plurality of bowl-shaped low-frequency radiation units in each low-frequency array are arranged on one side of the high-frequency array, and the plurality of cross-shaped low-frequency radiation units in each low-frequency array are embedded in the high-frequency array, which is conducive to reducing the length of the antenna, reducing the coupling between the high-frequency array and the low-frequency array, and ensuring the gain of the low-frequency array and the high-frequency array after fusion.

The invention discloses a low-profile-based magnetoelectric dipole antenna and an optimization method, and the antenna is characterized in that a connector inner core is fixedly arranged on a reflection plate, and the connector inner core is connected with a feed structure; the feed structure comprises a first feed strip and a second feed strip, and the second feed strip comprises a first strip, a second strip, a third strip and a fourth strip; a first magnetic dipole, a second magnetic dipole, a third magnetic dipole and a fourth magnetic dipole are fixedly arranged on the reflecting plate, the first magnetic dipole is connected with the first electric dipole, the second magnetic dipole is connected with the second electric dipole, the third magnetic dipole is connected with the third electric dipole, and the fourth magnetic dipole is connected with the fourth electric dipole. The low-profile design enables the antenna to be more compact and light, the application range of the antenna is widened, the overall size and weight of equipment are reduced, the stability of the antenna is enhanced, the influence of wind resistance and mechanical vibration on the antenna is reduced, and therefore the reliability of the antenna is improved, and the service life of the antenna is prolonged.

The invention discloses a four-frequency-band laminated satellite navigation antenna, which is characterized in that firstly, microstrip antennas are respectively designed for S, B3, L and B2b frequency bands, and a feed mode and a perturbation structure are optimized to improve the performance; the S and B3 frequency bands and the B2b and the L frequency band respectively form a double-layer laminated structure, wherein the short circuit point design of the B3 frequency band antenna enhances the isolation from the S frequency band. And then, a strip line feed network layer is additionally arranged below the B3 and L frequency band antennas, so that high integration and compactness of the antenna are realized. And finally, all antennas are integrated with a feed network to form a complete four-frequency-band laminated antenna, and performance testing is carried out on the complete four-frequency-band laminated antenna. The antenna is compact and light in structure, excellent in performance of each frequency band, capable of working at the same time, high in isolation degree and particularly suitable for occasions with limited space and high performance requirements such as airborne satellite navigation, and the performance and reliability of the antenna are manifested.

This invention discloses an installation device for constructing multi-curved curtain walls using a unitized frame, comprising arc-shaped support beams adapted to the curvature of the multi-curved curtain wall. Multiple arc-shaped support beams intersect to form a unitized frame, and each arc-shaped support beam has multiple columns of varying heights at its base according to its curvature. This invention also discloses an installation method for constructing multi-curved curtain walls using a unitized frame. This invention solves the installation problem of spatial curved curtain walls, offering not only simple and efficient installation but also high safety, and can be widely applied in the field of multi-dimensional spatial curved curtain wall construction technology.

The invention discloses a notebook computer light sensing face recognition method. The method comprises the following steps: step 1, double-spectrum environment sensing; step 2, dynamic illumination compensation processing; step 3, extracting features in all directions; step 4, deep feature fusion; step 5, lightweight network identification; and step 6, event-driven energy efficiency management. According to the method, environmental limitation is broken through through dual-spectrum sensing and three-dimensional illumination modeling, and the recognition precision is improved by combining a dynamic compensation algorithm with harmonic analysis; the robustness of a complex scene is enhanced through deep feature fusion, the power consumption is reduced through cooperation of event-driven management and a lightweight network, the endurance is prolonged through collaborative optimization of software and hardware, the maintenance cost is reduced through modular design, and comprehensive upgrading of precision, energy efficiency and practicability is achieved.

The invention discloses a multi-band four-arm helical antenna for portable communication equipment, belonging to the field of antenna technology, comprising: an S-band four-arm helical antenna unit connected to an antenna feeding network; a B1 / B3-band four-arm helical antenna unit connected to an antenna feeding network; the invention supports the B1 / B3 frequency band of Beidou satellite navigation and positioning, and the Beidou third-generation communication transmitting and receiving frequency bands through a laminated four-arm helical antenna and a channel separation technology, and realizes L, S and B1 / B3 frequency band processing respectively, and S and B1 / B3 are combined through different frequency duplexing and output through a dual-channel connector, thereby ensuring antenna gain, and simultaneously performing signal processing on different channels respectively, thereby improving the anti-interference capability of the system, ensuring signal quality, and realizing structural miniaturization, namely, a light and small integrated technology, replacing multiple antenna functions with one antenna, saving space and cost, and being able to be quickly disassembled and assembled.