58results about How to "Improve omnidirectionality" patented technology

A circularly polarized, omnidirectional, corporate-feed pylon antenna uses multiple helically-oriented dipoles in each bay, and includes a vertical and diagonal support arrangement of simple structural shapes configured to provide a frame strong enough to sustain mechanical top loads applied externally. The radiators in each bay fit within the vertical supports. The radiators are integrally formed with cross-braces, and are fed with manifold feed straps incorporating tuning paddles. A single cylindrical radome surrounds the radiative parts and the vertical supports. The antenna admits of application to the upper L-band at the full FCC-allowed ERP. Beam tilt, null fill, and vertical null can be readily accommodated.

The invention relates to improvement of a decoking device for a coal-fired boiler. The decoking device is characterized in that an impact vibration coke top hitting head is composed of a valve control air cylinder or an air pick or a crank arm / connecting rod and a direct driving coke hitting drill bit and arranged at the front end of a coke hitting cross arm. Not only a power device can generate vibration force and impacting force simultaneously and exciting force is strong and powerful, but also the impact vibration coke hitting head can enter a boiler body directly and vibrates and impacts coke blocks directly at a close range. The exciting force generated through the close range of the coke blocks enables coke hitting speed to be fast and powerful, coke hitting effectiveness and reliability are greatly improved, coke hitting and removing effects are remarkably improved, and coke hitting can be operated by a single person or two people.

The invention discloses a time division multiple access (TDMA) technology-based communication system for transmitting air situation and disaster situation early warning information. In the system, early warning information of various types of alarms such as air defense, disaster prevention and the like is transmitted by using the TDMA technology and a distributed network topological structure; meanwhile, message communication, data communication and acoustic code word communication are performed; and alarm information covers areas such as buildings, pits, tunnels, underground stores and the like by using various alarm information transmission technologies. The aims of quickly and reliably transmitting and returning various types of early warning information, reporting the various types ofalarm information and transmitting various types of service are fulfilled. The system has the function of quickly transmitting and distributing the various types of early warning information such as air defense, flood defense, shock resistance, fire prevention, flood discharge and the like, and can realize quick and accurate information transmission and all-around coverage of the alarm information, so that the alarms are reported without miss points or blind points, and real-time property, accuracy, high efficiency and all-around property of a civil air defense alarm are improved.

The invention discloses a multi-arm type automatic rotating sprayer which comprises a stator, a rotating head rotationally connected to the stator, multiple nozzles and at least one power nozzle. The rotating head is provided with one fluid inlet and multiple fluid outlets. Each nozzle is installed on the rotating head by corresponding to one corresponding fluid outlet, and the axis of each nozzle coincides with the axis, in the height direction, of the rotating head and / or inclines relative to the axis, in the height direction, of the rotating head by a certain angle. The power nozzles are arranged on the rotating head by corresponding to the fluid outlets, and the axes of the power nozzles are perpendicular to or oblique relative to the axis, in the height direction, of the rotating head. The multiple nozzles are divided into at least two layers in the height direction of the rotating head, wherein the included angles formed by the axes of every two layers of nozzles and the axis, in the height direction, of the rotating head are different; the solution spraying directions of the nozzles located on different layers are in a mutually-staggered manner, the nozzles conduct all-directional solution spraying and atomizing to the exterior from multiple angles, spraying blind areas cannot exist; and larger acting force is generated by the multiple power nozzles to drive the rotating head to do high-speed movement, and the atomization effect of the nozzles is improved.

The invention discloses an antenna alignment method and device. The method comprises the steps of: searching user side equipment by a base station side; after the base station side searches out the user side equipment, measuring a direction angle at which a user side is positioned relative to the base station side; judging whether the measured direction angle is within an optimal signal directionangle range; if the measured direction angle is within the optimal direction angle range, not rotating an antenna; if the measured direction angle is not within the optimal direction angle range, calculating a demanded rotating angle of an antenna array and a direction thereof; and after the antenna array rotates according to the demanded rotating angle of the antenna array and the direction thereof, pausing a while, then repeatedly measuring a direction angle at which the user side is positioned relative to the base station side, calculating the demanded rotating angle of the antenna array and the direction thereof again, and rotating the antenna array again.

The present invention discloses a tea processing equipment which comprises a tea frying pan, a rolling device, a heating device and a control module. The tea frying pan comprises a pan bottom, an upper lid and a housing. A plurality of claw-shaped ribs are provided on the upper surface of the pan bottom; the rolling device comprises a rolling device and a driving motor, a plurality of primary arc projections protrude out of the lower side of the rolling device, the driving motor is connected with the rolling device by a connecting rod, and a pressure sensor is provided on the connecting rod; and a display screen is installed on a bracket above the upper lid, the control module is arranged inside the display screen, a thermodetector is provided in the container, the data transmitted from the pressure sensor and the thermodetector are received by the control module which controls the rolling device and the heating device. According to the invention, the primary arc projections increase the contact area so as to increase the homogeneity and omnibearing of rolling, the pressure sensor and the thermodetector are used, the temperature of the heating device and the rolling strength of the rolling device are controlled by the control module, so that the automaticity is high, and the work efficiency is greatly improved.

The invention provides a miniaturized high-gain dual-polarized omnidirectional antenna comprising a V-polarized antenna, an H-polarized group array antenna and an H-polarized subarray feeder panel. The V-polarized antenna comprises M half-wave vibrators which are arranged on the V-polarized antenna substrate and V-polarized antenna feeders which are connected with the half-wave vibrators. The H-polarized group array antenna comprises N H-polarized array units which are arranged in parallel to form the array. Each H-polarized array unit comprises a dielectric disc. The circumference of the dielectric disc is provided with X H-polarized vibrators and H-polarized antenna feeders which are connected with the H-polarized vibrators. The V-polarized antenna is arranged at the external side of theH-polarized subarray feeder panel in parallel. The H-polarized array units are arranged to be intersected with the H-polarized subarray feeder panel and the V-polarized antenna. The H-polarized subarray feeder panel performs feeding to the H-polarized array units, wherein M, N and X are natural numbers greater than or equal to 1. The omnidirectional antenna of being high-gain, omnidirectional, dual-polarized, high-isolation, high-power, short and beautiful, simple in structure and economical and durable can be provided for the outdoor WIFI wireless access point.

The invention discloses an omnidirectional radiation vibrator array antenna for loaded coupled feeding, which relates to an omnidirectional radiation vibrator array antenna and is used for solving the problems of small bandwidth, low unit electrical length gain and poor omni-directivity existing in the conventional omnidirectional antenna. The front face of a medium plate 1 is printed with two groups of vibrators, a coplanar waveguide central feeder line, a feeding port matching branch knot and radiation terminal load; the upper end of the coplanar waveguide central feeder line is connected with the radiation terminal load, and the lower end of the coplanar waveguide central feeder line is connected with the feeding port matching branch; two groups of vibrators are arranged one above the other; each group of vibrators comprises a left side vibrator, a right side vibrator and two loaded horizontal metal strips; the left side vibrator and the right side vibrator are arranged symmetrically on both sides of the coplanar waveguide central feeder line; the two loaded horizontal metal strips are arranged symmetrically on the outer sides of the left side vibrator and the right side vibrator; the two ends of an upper horizontal feeder line are connected with two metallized through holes above respectively; and the two ends of a lower horizontal feeder line are connected with two metallized through holes below respectively. The omnidirectional radiation vibrator array antenna belongs to a printed antenna for communication.

The invention provides a novel horizontal polarization omnidirectional dielectric resonator antenna. The novel horizontal polarization omnidirectional dielectric resonator antenna is characterized in that two same dielectric circular rings and an excitation device disposed between the two same dielectric circular rings in a clamped manner are provided; the excitation device comprises arc-shaped monopoles, cone-shaped transition lines, and an impedance matching strip, which are disposed in a dielectric disc in an etched manner; the impedance matching strip is a circular area, which is formed by being etched and taking the circle center of the dielectric disc as a center; every cone-shaped transition line is electrically connected with the impedance matching strip, and is electrically connected with the corresponding arc-shaped monopole; the four cone-shaped transition lines are rotationally symmetric with respect to the center of the dielectric disc, and the four arc-shaped monopoles are rotationally symmetric with respect to the center of the dielectric disc. The novel horizontal polarization omnidirectional dielectric resonator antenna has advantages of simple excitation device, high omnidirectional performance, compact structure, and wide application in wireless communication system.

The invention discloses modular cleaning and drying integrated equipment based on nut processing. The equipment adopts the method of spraying water vapor for cleaning, avoids the problem of water soaking for washing, cleaning with the water vapor only cleans the outer surfaces of nuts and cannot cause internal wetness, and after surface cleaning with the water vapor is completed, rapid drying is performed by using a drying assembly, so that rapid drying can be achieved before permeation of the water vapor, and the problem of getting damp of the nuts cannot occur during storage. The modular cleaning and drying integrated equipment based on nut processing has the advantages that the spraying mode is adopted, and spraying is performed at the upper and lower portions simultaneously, so that cleaning can be performed from each angle, cleaning is thorough, the cleaning efficiency is high, nut products do not need manual cleaning, and the labor intensity of users is reduced; when the equipment performs cleaning, an overturning plate obliquely arranged on a conveyor belt can turn over the nuts, so that the sprayed water vapor clean the nuts from all directions and all angles, and the nutscan collide and impact with each other during rising and falling, thereby ensuring the oblique performance.

A near field communication antenna comprises a dielectric substrate, a coil and a coupling structure, wherein the coil is arranged on the dielectric substrate; the coupling structure comprises at least one coupling branch; and two tail ends of the coupling branch are respectively connected with two different connection points on the coil. The coupling structure of the invention can average coupling current of the near field communication antenna, and omnidirectional performance of the near field communication antenna is further improved.

An omnidirectional radiation oscillator array antenna for coupling feed relates to a printing antenna and resolves the problem that the existing omnidirectional antenna is narrow in bandwidth, low in gain, poor in omnidirectional performance in working band and larger in size. The antenna comprises a media plate and a coplanar waveguide center feeder. The antenna further comprises a feed port matching branch knot, radiation type terminal load and two groups of oscillators. The coplanar waveguide center feeder, the feed port matching branch knot, the radiation type terminal load and the two groups of oscillators are printed on the front plate face of the media plate, the lower end of the coplanar waveguide center feeder is connected with the feed port matching branch knot, and the upper end of the coplanar waveguide center feeder is connected with the radiation type terminal load. Each group of vibrators comprise a first vibrator and a second vibrator which are rectangular, the two groups of vibrators are symmetrically arranged along the coplanar waveguide center feeder, and a first horizontal feeder and a second horizontal feeder are printed on the back plate face of the media plate. The antenna is used for the technical field of radio engineering.

The invention relates to a vehicle-mounted multi-frequency integrated antenna device. The vehicle-mounted multi-frequency integrated antenna device comprises a 350MHz cluster mobile antenna, an 800MHz cluster mobile antenna, a 3G public mobile communication antenna, an FM antenna, a compass double-mode antenna, a GPS double-mode antenna, a 3G wide-band antenna support, a bottom board, an outer shell, a feeder line and a short circuit. The vehicle-mounted multi-frequency integrated antenna device has the advantages that the electric sizes of the 350MHz cluster mobile antenna and the 800MHz cluster mobile antenna are small, the antenna device combines the advantages of an IFA antenna structure, a reversed-F-shaped short circuit structure is connected into the receiving end of the antenna device so as to change the currents of the antenna device, and the size is reduced. The 350MHz cluster mobile antenna and the 800MHz cluster mobile antenna are of a double-frequency structure, the top of the antenna is modified to be of a slow wave structure by modifying a spiral antenna, the resonance currents change for the second time, and the characteristic of double-frequency operation is achieved.

The invention discloses a broadband high-gain microstrip antenna. The broadband high-gain microstrip antenna comprises a dielectric substrate, a radiator array and a grounding plate multilayer structure, and the top layer of the dielectric substrate is a radiator array which is composed of N rectangular microstrip patches (1), N pairs of rectangular coupling patch pairs (2) and a feed microstrip line (3). The 50-ohm feed microstrip line (3) is connected with the N rectangular microstrip patches (1) and feeds the N rectangular microstrip patches (1) in series; the N pairs of rectangular coupling patch pairs (2) are symmetrically distributed on two sides of the feed microstrip line (3); the structure of the grounding plate layer is similar to that of the radiator array layer, and the grounding plate layer and the top radiation unit are arranged in a staggered manner; the specific numerical value of N is determined according to system gain and system size requirements; and the broadband high-gain microstrip antenna is wide in bandwidth, good in omnidirectivity, high in gain, small in size, compact in structure and convenient to process.

The invention discloses an electrophoresis paint-spraying pretreatment device for surfaces of mechanical parts and fittings. The electrophoresis paint-spraying pretreatment device comprises a housingI, wherein an inner cavity of the housing I is hollow; the bottom wall of the housing I is sequentially connected with a motor I, a motor II and a motor III in the horizontal direction; one end of themotor I, one end of the motor II and one end of the motor III are separately connected with a rotary shaft I, a rotary shaft II and a rotary shaft III; the top of the housing I is sequentially connected with a conveyor belt I, a controller, a frame body, a water tank, a barrel body, a supporting rod, a booster pump, a housing II, an electrophoresis slot and a conveyor belt II in the horizontal direction; one end, away from the housing I, of the conveyor belt I is fixedly connected with a placing plate; the placing plate is positioned on the top of the water tank; and the side wall of one side, away from the conveyor belt, of the water tank is sequentially connected with a water pump and a water introducing tube in the vertical direction. The electrophoresis paint-spraying pretreatment device is simple in structure, is convenient to operate, realizes pretreatment for electrophoresis parts and fittings and a treatment function after electrophoresis is completed, and improves electrophoresis quality.

The invention relates to an intelligent motor-driven self-supporting plant potting device; an intelligent motor-driven self-supporting water supplementing structure is arranged; a designed annular isolation wall (6) can divide the inner portion of the plant potting device body (1) into a planting cavity (8) and an inner wall cavity (7); according to the humidity detection result in the planting cavity (8), a specifically designed motor-drive circuit (16) and a micro water pump (14) are employed, a water storage box (11) connected with the inner wall cavity (7) is combined, and the inner wall cavity (7) and each water guide tube (9) of each water guide tube group can cooperate to supply water for each height position area in the planting cavity (8), so the supplied water can be transferred to each position of the planting cavity (8) in the first moment, thus realizing soil omnibearing moisture supply.

The invention relates to the field of constructional engineering equipment, in particular to constructional workpiece spraying equipment capable of automatically and circularly moving and being compressed, which comprises a transmission device for guiding and supporting, a guiding device is slidably clamped on the upper end surface of the transmission device, and a supporting rotating ring is rotatably clamped on the inner end surface of the guiding device; limiting rotating grooves are evenly formed in the upper end face of the supporting rotating ring in a penetrating mode to the bottom at equal intervals, and a connecting gear ring is fixedly installed at the center of the side end face of the supporting rotating ring. By arranging the spraying devices, when a building workpiece is subjected to spraying operation, a connecting gear ring can synchronously provide power for autorotation and circumferential rotation of four groups of connecting gears, so that the multiple groups of spraying devices can provide power for a connecting clamping seat through the connecting gears and a fixed guide shaft while performing circumferential rotation on the upper part of a guide device; and high-pressure spraying is automatically carried out, and the efficiency of spraying the exterior of the building workpiece by the equipment is effectively improved.

The invention discloses a method for improving and enhancing efficiency of a potassium-deficient and calcium-poor rice field by utilizing biomass charcoal. According to the method disclosed by the invention, rice straw biomass charcoal is used as a soil modifying agent and a fertilizer efficiency enhancing agent; one week before rice seedlings are transplanted, the rice straw biomass charcoal is added into the low-yield potassium-deficient and calcium-poor rice field in a ratio of 22.5t / ha; 2-3 days before the seedlings are transplanted, watering is performed to soften the field; one day before the rice seedlings are transplanted, a nitrogen, phosphorous and potassium compound fertilizer is applied in a ratio of 417kg / ha; one month after the rice seedlings are transplanted, a nitrogen, phosphorous and potassium compound fertilizer with the same specification is applied in a ratio of 500kg / ha; and in other aspects, the rice seedlings are cultivated according to a conventional rice planting manner in China. Compared with conventional fertilization management, the method has the advantages that while the yield of rice is not reduced for a long period, about 50% of an inorganic nitrogen fertilizer is reduced in each year; and the soil quality is effectively improved, and the content of potassium and calcium in the soil of different depths in the potassium-deficient and calcium-poor rice field is improved. The method has the advantages of simplicity in preparation, economical and practical performances, high efficiency and durability, strong operability and the like, and has an important guide meaning of improving and enhancing efficiency of the low-yield potassium-deficient and calcium-poor rice field.

The invention relates to the technical field of beef paste production and filling, and particularly relates to a novel beef paste packaging bottle cleaning and high-flow drying device. The device comprises a cleaning and drying box and a first conveying belt, an outer wall cleaning chamber is arranged in the cleaning and drying box, a second conveying belt is arranged in the cleaning and drying box, a plurality of fixing rods are arranged on a first conveying belt, and a rotating mechanism for rotating a fixed rod is arranged below the fixed rod; and swing type water spraying mechanisms are symmetrically arranged in the outer wall cleaning chamber. The device for cleaning the outer wall and the inner wall of a packaging bottle and the drying device are arranged in the same box body, so that integrated automatic operation of cleaning and drying of the packaging bottle is realized; and a supporting rotary shaft is driven by a power device to rotate, a guide column can be driven to do circular motion, then a swing sleeve plate is pushed to do reciprocating swing with a certain amplitude around the end of a hinge base, a nozzle can continuously swing up and down, then clean water sprayed out of the nozzle can be evenly sprayed to the surface of the packaging bottle, and the efficiency of cleaning the outer wall of the packaging bottle is improved.

The invention provides a tensile strain sensor and a preparation method and application thereof. The tensile strain sensor comprises a flexible substrate layer and a sensing layer. The sensing layer is partially embedded into the flexible substrate layer and comprises a conductive metal particle layer and a conductive carbon material layer, and the conductive carbon material layer is arranged between the flexible substrate layer and the conductive metal particle layer. Because of the self-locking effect at the interface of the double conductive sensing layers of the conductive carbon materiallayer and the conductive metal particle layer, a problem of continuous conduction of the strain material under large tensile strain is solved; and the sensor has the characteristics of high stretchability, high sensitivity, wide strain range, good stability and good durability.

In devices comprising antennas (2) for exchanging radio frequency signals, the antennas (2) comprise two conductive planes (21,22) which comprise two connection points (31a,32a) and which are separated by gaps (23) for separating the conductive planes (21,22) from each other and which are coupled to each other by conductive bridges (24). These antennas (2) have a sufficient antenna performance, do not require power amplifiers to be over dimensioned, do not introduce extra power consumption, have sufficient bandwidth, are low cost and can easily be manufactured. The conductive planes (21,22) carry processing circuitry (41) and interfacing circuitry (42). By introducing two further connection points (31b,32b), the gaps (23) are divided into first gaps (23a) and second gaps (23b) by the conductive bridges (24) and the antennas (2) can be used in different frequency bands. The conductive planes (21,22) may make an angle with respect to each other, to allow the antennas (2) to be shaped in dependence of device constructions.

The invention discloses an all-round solar heat collection device, which can greatly improve the utilization efficiency of solar energy. When in use, the angle adjustment component is used to make the solar hot water heat The heater heats the water in the water storage tank. When the temperature of the water in the water storage tank reaches a preset value, the angle adjustment assembly adjusts the angle of the installation frame to adjust the bottom solar panel or the side solar panel to the best angle of the sun. Use solar energy to generate electricity to realize the effective utilization of solar energy. At the same time, it can also be judged according to the power of the storage battery whether it is necessary to use solar energy to generate electricity. In the heat collection stage, the focusing component can also be used to irradiate the solar panel to generate electricity, so as to improve the omnidirectionality of solar energy utilization.

Disclosed is a lighting device (1) comprising a bulbous body mounted on a cap (20), an inner surface of the bulbous body comprising a plurality of steps that are axially displaced relative to each other along a central axis of the lighting device, said plurality of steps comprising a first step (110) supporting a first plurality of solid state lighting elements (32); and a second step (120) supporting a second plurality of solid state lighting elements (42), wherein the first step is located in between the cap and the second step. A luminaire including such a lighting device is also disclosed.

The invention discloses an ultrahigh-frequency sensor and a local discharge detection device. The ultrahigh-frequency sensor comprises an insulating support, an antenna and short-circuit dowels. The antenna with curved surfaces is arranged on the insulating support; the short-circuit dowels are connected onto the antenna. The ultrahigh-frequency sensor and the partial discharge detection device have the advantages that the omni-directional property of the ultrahigh-frequency sensor can be improved; the performance of the ultrahigh-frequency sensor can be adjusted via the short-circuit dowels, so that working frequency bands of the ultrahigh-frequency sensor can be expanded and widened, the ultrahigh-frequency sensor is excellent in performance, and substation space orientation requirements can be met.