58results about How to "Improve omnidirectionality" patented technology

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.

Described is a device for creating a sound source comprising integrated measuring means (50) for measuring a property representative of the strength of the sound source, the device comprising a sound generator (40a, 40b) for generating sound within an annular space defined around a central axis, the device comprising a pair of guiding surfaces (113, 123) for guiding sound away from the annular space in opposite directions along the central axis. With sound being guided as described, sound in addition being allowed to propagate outside the device in a radial direction with respect to the central axis, a high degree of omnidirectionality of the created sound source is attained.

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 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.

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.

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.

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.

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.