38 results about "Major minor" patented technology

The present invention provides a channel quality feedback method and user terminals and a system including a base station and user terminals. The base station also includes a sub-carrier dividing module for dividing the whole frequency band into N sub-bands (N is a positive integral bigger than 1), and a major-minor sub-band allocating module for allocating the main frequency sub-band and the minor frequency sub-band to each cell for communication; the base station communicates with the user terminals according the sub-band division and the allocating information and the base station also includes a determining module of the sub-band using for determining that the user terminal uses at least one of the main frequency sub-band and the minor frequency sub-band; the user terminal also includes a sub-band using information generating module for generating the sub-band using information of the corresponding user terminal and transmitting the information to the a channel quality feedback module for sending back the channel quality information to the base stations according to the sub-band using information.

The invention discloses an exclusive digital control helical turning-milling machine for machining helical groove products which is not disclosed or reported in China, comprising: a lathe bed (using a three-guide-rail lathe bed, composed of a major-minor guide rail pair), a lathe head case, a main shaft (with an inner hole having a diameter of 200-300 mm), a turning milling unit, and a feed unit. The main shaft is driven by: (1) a frequency conversion electrical motor in a workpiece main shaft device, the power of which is transmitted by a synchronous belt and a gear, the clutch and the worm wheel separate from each other to complete turning-milling machining; (2) a servo electrical motor in a main shaft device for driving the worm by the gear, the worm is rotated by the clutch driving the workpiece main shaft to complete turning-milling machining. The turning head and the milling device are mounted on a big carriage respectively, and are driven by the servo electric motor respectively. Both the center and angle of the milling tool are adjustable.

A method for controlling channel tuning of a digital TV is disclosed, in which a desired channel can easily be tuned in accordance with a user's input in a digital TV having a channel number of a major-minor type. The method for controlling channel tuning of a digital TV includes the steps of tuning a corresponding channel referring to a corresponding channel data depending on whether channel a data of a major number input by a user exists in a previously stored channel map if the user inputs a major number only, controlling an analog channel if the user inputs a major number or a minor number of 0, and controlling tuning of a corresponding channel depending on whether a channel data of the minor number input by the user exists in the previously stored channel map if the user inputs the major number and the minor number not 0. Since the user can recognize the minor channel data of the desired major channel, it is possible to prevent any confusion in selecting a plurality of minor channels from occurring.

The invention relates to the bridge detection technology, in particular to a dynamic detection method for a crack of a bridge bottom surface, which can be used for performing dynamic detection on the crack of the bridge bottom surface. The method comprises the following steps: S1, acquiring video images of the bridge bottom surface, and graying the color images; S2, performing binaryzation of gray level images; S3, screening a connected domain through area and the major-minor axis ratio of a minimum enclosing rectangle, and judging the connected domain meeting the following conditions a and b to be the crack; S4, drawing the minimum enclosing rectangle of a target area in an original drawing, so that the location of the crack can be visually observed, and the identification of the crack is realized. According to the dynamic detection method provided by the invention, the dynamic detection can be performed on the acquired video images, and therefore, the labor force is reduced, and the safety during a detection process is improved. Detection personnel can visually observe the location of the crack by marking the crack.

The invention provides an intelligent fuel-tank, which is an intelligent fuel tank based on fuel information induction system; and includes: a fuel tank cover, a fuel tank cover sensor, a main fuel tank, an auxiliary fuel tank, a main fuel tank oil fuel pump, an auxiliary fuel tank oil fuel pump, a main fuel tank pressure sensor, an auxiliary fuel tank pressure sensor, a control electromagnetic valve, a bluetooth transmitting apparatus, a bluetooth receiving apparatus as well as a ECU; the intelligent fuel-tank uses a wireless bluetooth apparatus to execute interactive communicate with a service station, when the service station adds fuel to the auxiliary fuel tank from the intelligent fuel-tank, the vehicle can acquire the kind that the fuel belongs to through wireless communication, and then the intelligent fuel-tank controls the electromagnetic valve through the paralleling design of major-minor fuel tank for realizing charging and storing pluralities of fuels.

The invention discloses a broadband reflective half-wave plate based on a silicon nano brick array and a preparation method of the broadband reflective half-wave plate, and relates to the field of micro-nano optics and polarization optics. The half-wave plate comprises a base, a metal reflection layer, a dielectric medium film layer and a silicon nano brick array arranged from bottom to top, wherein the silicon nano brick array is formed by periodically arranging silicon nano bricks with the same turning direction and size; the structural parameters of the half-wave plate are optimized so thatthe component of the reflected light of the half-wave plate generates a phase delay of Pi in the major-minor axis direction after the linearly polarized light at the communication wave band of optical fiber comes in, and the polarization direction of the incident light is changed. According to the broadband reflective half-wave plate disclosed by the invention, for a light wave with wavelength of1,400-1,700nm, a phase delay of Pi can be generated in the major-minor axis direction of the reflected light.

The invention provides a main and secondary clack tracker and the tracking method for a warning radar. The tracker comprises antennas 1-5, a servo platform 6, PIN attenuators 7-11, high-frequency amplifiers 12-16, frequency mixers 17-21, mid-frequency amplifiers 22-26, a local oscillation assembly 27, a digital receiver 28, wave detectors 29-30, a summing circuit 34, and a signal processor 35. The antennas 1-5 are mounted on the servo platform 6, and are respectively connected with the inputs of the PIN attenuators 7-11; the outputs of the PIN attenuators 7-11 are connected with the inputs of the high-frequency amplifiers 12-16; the local oscillation assembly 27 is controlled by the processor, and generates microwave signals with fixed frequency difference from the frequency of the incident signals, and is connected with the frequency mixers 17-21 together with the output signals of the high-frequency amplifiers; the outputs of the frequency mixers 17-21 are connected with the inputs of the mid-frequency amplifiers 22-26, the outputs of which are connected with the digital receiver 28 and the wave detectors 29-30; the outputs of the wave detectors 29-30, passing the summing circuit 34, are connected with the signal processor 35 together with the output from the digital receiver 28. By controlling the front ends of microwaves through the arrival signals of the front ends of microwaves and the signal processor, the invention combines EKF (extended Karman filtering) arithmetic with missile controlling value, capture concurrently the main and secondary clack of a radar, so as to attack a target precisely.

The invention provides an intelligent optical power distribution device based on a meta-surface material. The intelligent optical power distribution device is characterized by comprising a meta-surface array structure formed by arranging nano-brick units and capable of focusing orthogonal linear polarization lights irradiating in major-minor axis directions of the nano-brick units on different locations so as to perform optical power distribution, wherein each nano-brick unit is composed of a dielectric substrate and a nano-brick formed on the dielectric substrate, and the dielectric substrateand the nano-brick are in sub-wavelength size. The intelligent optical power distribution device provided by the invention performs phase operation on the orthogonal optical wave in the major-minor axis directions of the nano-bricks by utilizing polarization independent feature for transmitting the phase meta-surface material, and the orthogonal optical waves in the major-minor axis directions ofthe nano-bricks can be respectively focused on different locations, thereby realizing efficient optical power distribution.

The invention discloses a multi-beam forward-looking sonar target detection method. A target can be effectively detected by using the multi-beam forward-looking sonar target detection method. The multi-beam forward-looking sonar target detection method comprises the steps of: firstly, removing scattering noise in an image by using a median filter based on a 3*3 window to improve the quality of a sonar image; then, carrying out fixed threshold segmentation, segmenting a target and a background, performing an erosion operation by using a 3*3 rectangular window kernel, wherein the erosion operation of a morphological operation is capable of well removing a false target with a small area, that is the noise is further reduced, the processing pressure and complexity of identifying processing are alleviated; finally, further removing the false target by using an area ratio and a major-minor axis data ratio, therefore the correct rate of detection is improved.

The invention relates to a method for subdividing dual-frequency laser interferometers on the basis of a main phase discriminator and an auxiliary phase discriminator, which comprises the following steps: firstly, pretreating two paths, namely a reference path and a measurement path, of photoelectric signals of the laser interferometer, inputting the photoelectric signals into a reversible counter for signal acquisition, performing eight frequency division on the pretreated signals, inputting the signals into the main phase discriminator for data acquisition, performing phase shift on models of the reference path, and inputting the models of the reference path with Fm_8 into the auxiliary phase discriminator for data acquisition; secondly, resetting the reversible counter, and making an initial phase angle of the main phase discriminator operated within an interval of 0.5+ / -0.125 and a phase angle of the auxiliary phase discriminator operated within an interval of 0.62+ / -0.125; thirdly, making a CPU enter a sampling interruption program when a timing signal arrives to latch data; fourthly, performing error judgment on the data acquired in the third step; and fifthly, performing error elimination and synthesis on the data. The dual-frequency laser interferometers have the characteristics of quick measuring speed, high resolution and multi-frequency phase locking frequency tracing bandwidth during actual measurement.

The invention discloses a conversion method between main amount and auxiliary amount and a system for converting the main amount and the auxiliary amount. The conversion method adopts the technical proposal that the method comprises: receiving a main measuring unit, an auxiliary measuring unit and a control parameter input by a user; constructing a conversion relation according to the main measuring unit, the auxiliary measuring unit and the control parameter; and carrying out conversion between the main amount and the auxiliary amount for the received main amount and / or the auxiliary amount according to the constructed conversion relation, so that when the user needs to convert the main amount and the auxiliary amount of a bill, the user only simply configures the control parameter according to self requirement, so as to flexibly define a conversion rule. Therefore, the method achieves dynamic conversion between the main amount and the auxiliary amount and flexible regulation of the conversion rule, avoids the condition of newly coding when the conversion rule between the main amount and the auxiliary amount is changed at the same time of meeting personalized conversion requirement of the user, reduces development amount, and improves efficiency.

A digging machine for two purposes of teaching and training is prepared as enlarging area of pilothouse to erect two independent chairs and operation system in major-minor group, setting another two chairs at back of pilothouse for trainee, setting hydraulic control systems symmetrically for major-minor group and erecting control button at a side of teacher chair to control two-position and three-way solenoid valve for switching oil supply to major and minor group separately to let digging machine be controlled by teacher or by trainee.

The invention relates to the technical field of hybrid-power transmissions, and discloses a hydraulic gear-shifting and cooling lubrication system used for a hybrid-power transmission. An oil supply system comprises an integrated double-oil-outlet filter screen, a mechanical pump, an electronic pump and a first small-flow switch electromagnetic valve, wherein the mechanical pump communicates witha main oil circuit, oil of the electronic pump can be controlled to communicate with the main oil circuit or a cooling lubrication oil circuit through an oil pump switching valve, and thus, controllable high-pressure and low-pressure separation is achieved. A hydraulic gear-shifting system comprises the main oil circuit, a main oil circuit pressure-control module and a gear-shifting module, and the gear-shifting module is provided with a redundant reversing valve, so that the gear-shifting safety and reliability are improved. A cooling lubrication system comprises a cooling module, an oil major-minor cycle control module and an oil distribution module, so that the oil temperature is well controlled, and cooling lubrication oil is distributed more accurately. Compared with the prior art, the hydraulic gear-shifting and cooling lubrication system is more suitable for a diesel E-CVT hybrid-power transmission, the phenomenon of oil scrambling of two oil pumps is avoided, and the safety andreliability are better guaranteed when an electrical fault occurs.

The invention discloses a numerical control groove cutting device of multilateral curve type parts, comprising major-minor driving pieces and a clamping piece, which is characterized in that the major-minor driving pieces are connected by an external tooth flange bearing (5), and the outer race of the external tooth flange bearing is fixed on the base (3), an external tooth which is meshed with the major driving piece is arranged outside the flange of the inner ring, and the inner ring and the minor driving piece are fixedly connected. The numerical control groove cutting device has the advantages that the prior space parallel four-bar mechanism and the external tooth or fan tooth meshed mechanism is promoted to a structure of fixed rotation and angle rotating shaft deflection, not only the cost of the research and development is saved, but also the mechanism volume is greatly reduced, so that all-in-one of the rotation, the connection, and the serrated meshing is achieved.

The invention discloses a single live wire double-control switch wiring method and circuit, two same touch switches are selected, and a live wire of commercial power is connected with a first switch, a second switch, a load light and the first switch form a series connection and are connected with a neutral wire of the commercial power; each touch switch comprises a touch disc, an MCU and touch control circuit, a power supply voltage stabilizing circuit, a single live wire electricity acquiring module and a live wire electricity taking module, the MCU and touch control circuit is connected with the touch disc to serve as an operation mechanism, and a silicon controlled rectifier or a relay is adopted in the live wire control module to serve as a control mechanism. According to the invention, two same touch switches are serially connected with the load, only one wire is wired between the double-control switch, the structure is simple, the wiring is convenient, and the cost is lower than before; two switches are not major-minor switches, data transmission is not performed between the switches, the internal voltage variation can be detected only to judge if a user operates, and a purpose of open or close is achieved.

The invention relates to a surface anisotropic morphology processing method based on electronic dynamic regulation, and belongs to the field of functional surface application. The effect that laser can vertically irradiate to the surface of a horizontally arranged sample is guaranteed. A slit is arranged in the position where a light path passes; the position of the slit is regulated; the width of the slit is regulated to the needed size; and the effect that the laser vertically passes through the center of the slit is guaranteed. The major-minor axis ratio of anisotropic morphology can be continuously adjusted through the width of the slit. Processing of the surface anisotropic micro-nano composite structure of materials is realized through a spatial light shaping method, so that the process of building an anisotropic structure is simplified, the surface anisotropic morphology processing method is suitable for various materials, and the major-minor axis ratio of the anisotropic structure is changed continuously by adjusting the width of the slit. The parameters such as the number of pulses, energy and the processing period are changed furthermore so that controllable changes of the anisotropic wetting property can be realized after large-area processing, and the simple, controllable and efficient processing method is provided for the anisotropic wetting property.

The invention provides a particle shape based rock explosion breaking efficiency evaluation method. The method comprises that (1) explosion-broken stones at a plurality of positions of a blasting muckpile are shot in different scaling ratios; (2) an image processing technology is used to automatically identify the boundary of each explosion-broken stone so as to obtain the particle size and the major-minor axis ratio of each explosion-broken stone, and image identification results obtained at different positions and in different scaling ratios are combined; (3) acquiring particle size distribution and an average major-minor axis ratio of broken stones of the blasting muckpile based on an image processing result; and (4) an production efficiency index Q: Q = [1-(| G-Gs | / Gs)] * [1-(| S-0. 707 | / 0. 707)] of the explosion-broken stones is defined. According to the method, the degree that gradation of the produced explosion-broken stones satisfies standard requirements can be reflected, subsequent crushing and grinding efficiency of ores and the compactness of damming aggregates can be considered, and the economical efficiency of explosion-broken stone production can also be considered.

The invention relates to a mechanical weighting mechanism of the electronic scale of dynamic grabbing bucket of the gantry crane, which belongs to the weighting device, wherein the pivot brackets of the transmission shaft of the major-minor hook wound rolls of the door machine are respectively connected with the bearing support and then are press-arranged on the upper surface of the flat sensor. The flat sensor is fixed on the underframe of the door machine room by a holder base. A wheel rib load cell is arranged at the lower terminal of the load limiter of the door mechanical structure, and the major weighting mechanism is composed by the wheel rib load cell and the flat sensor. The invention also comprises an automatic counting mechanism which is used for the weighing compensation of the amplitude modulation of the electronic scale of the grabbing bucket of the door machine and for the automatic counting mechanism of the speed testing, the high weighing compensation testing of the electronic scale of the grabbing bucket of the door machine. The mechanical weighting mechanism of the electronic scale of dynamic grabbing bucket of the gantry crane has the advantages that the problems of measure accuracy lost and extremely big repeated error of the prior art are solved, and the weighting mechanism has rapid, accurate, stable and reliable measure, the cost is saved for the harbour, and the work efficiency and the economic benefit of loading and unloading are improved.

The invention discloses an optical fibre bicyclo redundancy controller for controlling local area network, comprising a major ring signal selector, a minor ring signal selector, a major signal repeater and a clock generator, wherein the controller is linked between a CAN interface, a major-minor ring optical fibre receptor and a major-minor ring optical fibre sender as a transmitting-receiving unit of the CAN node, the functions of the major signal selector and the minor signal selector are to dynamically forming an optical fibre working loop, the function of the major ring signal repeater is to realize a signal transfer between the CAN node and the optical fibre loop, and the clock generator is designed to provide a clock signal acquired by the operation of the circuit.

A superprecise linear cylindricity standard apparatus of major-minor dual track structure in monitoring and compensating type based on laser transparent and reflecting combination is disclosed by the present invention according to action rule of reference motion error of track linear motion to measured result of cylindricity measuring device with utilizing laser beam as physical reference.

This invention discloses a CNC controlled cantilever type system for automatically assembling positive, negative poles sheets, and the method therefore. It includes: (a), taking the piled-up sheets out of the box, and then the sheets being separated, tested and put on the place where the assembling will be proceeded; (b), opening isolation film roll and putting it in right direction, distributing film between positive and negative film; (c), placing positive and negative sheets alternatively between the isolation film, and compacting them into a pile on a bench; (d), counting the numbers of the positive and negative sheets; (e), major-minor workbenches grasping the whole pile of assembly, and then being reset; (f), winding the whole assembly with isolation film, and cutting-off the film; (g), removing away the film roll, adhering the adhesive tape onto said assembly, making it keep the geometric shape, finally removing them one after another.

The invention relates to a master-auxiliary cylinder composite rotor engine which is composed of a master cylinder, auxiliary cylinders, a rotor, a baffle plate, a slide plate, a spring, an end cover, a shaft, a bearing, a spark plug, etc. Fuel and other mixed gas are poured into the master cylinder of the engine to combust for working, then the incompletely combusted high-temperature high-pressure gas is discharged into one or plural auxiliary cylinders for continual combustion working, and then is discharged into the air after combustion working in the last auxiliary cylinder. Compared with the prior internal combustion engine, the invention has the obvious following advantages in working circulation: 1, reducing the fuel consumption; 2, improving the effective thermal efficiency; 3, improving the performance per liter; 4, reducing pollutants discharge; and 5, reducing manufacture cost due to structure simplification.

The invention discloses a method for installing a security door in the main and subsidiary frame structure, which sequentially includes the subsidiary frame installation and the main frame installation. A gap is reserved to some extent between the subsidiary frame and the main frame. The subsidiary frame installation includes the steps of: reserving an opening on the installation site; setting up 3-4 balanced supporting parts on the subsidiary frame; using a gradienter to calibrate the door to be level and further installing installation parts on the subsidiary frame when connecting the subsidiary frame to a wall; inserting the installation parts into the wall in the horizontal direction and solidifying by cement mortar; carrying out the installation steps of the main frame to complete the entire installation of the security door. The method has the advantage of convenient installation, and is applicable to the door frames with various sizes.

The invention discloses a method for stably controlling the reliable locking of a main transmission device and an auxiliary transmission device. If the main transmission device is judged to need tripping, whether the mark showing that the auxiliary transmission device can actuate is received or not is no longer judged, that is, the mark showing that the auxiliary transmission device can actuate is not sent to the auxiliary transmission device, thereby ensuring that only the main transmission device actuates, the auxiliary transmission device can be reliably locked, and other logic main and auxiliary transmission devices are similar to the main transmission device and the auxiliary transmission device under the condition that the main transmission device needs tripping is prior to receiving the mark showing that the auxiliary transmission device can actuate is judged. By adopting the method, since a matching relation that the main transmission device and the auxiliary transmission device can respond to each other is established, the exit of only one out of the main transmission device and the auxiliary transmission device actuates to ensure the reliable locking of the main transmission device and the auxiliary transmission device, and further avoid the time delay of the original auxiliary transmission device, thereby greatly improving the transient stability of the system.

The invention relates to a main and assistant cylinder combination engine which comprises a main cylinder, an assistant cylinder, a piston, a connecting rod, a crankshaft, an intake valve, an exhaust intake valve, an exhaust valve, a spark plug or a diesel high-pressure fuel injector and flywheel and the like. The main cylinder of the engine is injected with gas mixture, such as fuel and the like and burns and applies work, exhausts incompletely burnt high-temperature and high-pressure mixture gas into one assistant cylinder or a plurality of assistant cylinders to continue burn and apply work and finally the gas mixture are exhausted into the atmosphere after burning and applying work in the last assistant cylinder. Compared with the existing explosion engine, in the working cycle, the combination engine has prominent advantages of: 1 reducing the fuel consumption; 2 improving the effective thermal efficiency; 3 decreasing the pollutant emission and 4 simplifying the structure and reducing the manufacturing cost.

The invention provides a main and secondary clack tracker and the tracking method for a warning radar. The tracker comprises antennas 1-5, a servo platform 6, PIN attenuators 7-11, high-frequency amplifiers 12-16, frequency mixers 17-21, mid-frequency amplifiers 22-26, a local oscillation assembly 27, a digital receiver 28, wave detectors 29-30, a summing circuit 34, and a signal processor 35. The antennas 1-5 are mounted on the servo platform 6, and are respectively connected with the inputs of the PIN attenuators 7-11; the outputs of the PIN attenuators 7-11 are connected with the inputs of the high-frequency amplifiers 12-16; the local oscillation assembly 27 is controlled by the processor, and generates microwave signals with fixed frequency difference from the frequency of the incident signals, and is connected with the frequency mixers 17-21 together with the output signals of the high-frequency amplifiers; the outputs of the frequency mixers 17-21 are connected with the inputs of the mid-frequency amplifiers 22-26, the outputs of which are connected with the digital receiver 28 and the wave detectors 29-30; the outputs of the wave detectors 29-30, passing the summing circuit 34, are connected with the signal processor 35 together with the output from the digital receiver 28. By controlling the front ends of microwaves through the arrival signals of the front ends of microwaves and the signal processor, the invention combines EKF (extended Karman filtering) arithmetic with missile controlling value, capture concurrently the main and secondary clack of a radar, so as to attack a target precisely.

The invention discloses a multi-beam forward-looking sonar target detection method. Using the present invention can effectively detect the target. The present invention first adopts the median filter based on 3×3 window to remove the scattering noise in the image and improve the quality of the sonar image; The corrosion operation of the window kernel to do one erosion operation and the morphology operation can better remove the false target with a small area, that is, further reduce the noise, reduce the processing pressure and complexity of the recognition process; Remove false targets and improve detection accuracy.

The invention relates to a mechanical weighting mechanism of the electronic scale of dynamic grabbing bucket of the gantry crane, belonging to the technical field of weighting devices, wherein the pivot brackets of the transmission shaft of the major-minor hook wound rolls of the door machine are respectively connected with the bearing support and then are press-arranged on the upper surface of the flat sensor. The flat sensor is fixed on the underframe of the door machine room by a holder base. A wheel rib load cell is arranged at the lower terminal of the load limiter of the door mechanicalstructure, and the major weighting mechanism comprises the wheel rib load cell and the flat sensor. The mechanical weighting mechanism also comprises an automatic counting mechanism used for the weighing compensation of the amplitude modulation of the electronic scale of the grabbing bucket of the door machine and for the automatic counting mechanism of the speed testing, the high weighing compensation testing of the electronic scale of the grabbing bucket of the door machine. The mechanical weighting mechanism of the electronic scale of dynamic grabbing bucket of the gantry crane has the advantages that the problems of measure accuracy lost and extremely big repeated error of the prior art are solved, and the weighting mechanism has rapid, accurate, stable and reliable measure, the cost is saved for the harbor, and the work efficiency and the economic benefit of loading and unloading are improved.

This invention relates to an integral cleaner of coal-burning boiler smoke gas desulfuration, denitration and dedusting, which belongs to the environmental protection apparatus field. The device comprises major-minor reactor cluster, major-minor circulating pool, tank and the removing agent made up of lime slurry liquor, boiler blowdown, reinforcer and catalyst. The invention applies the integral project according to the smoke gas components and the product of removing reaction.

The invention discloses an optical fibre bicyclo redundancy controller for controlling local area network, comprising a major ring signal selector, a minor ring signal selector, a major signal repeater and a clock generator, wherein the controller is linked between a CAN interface, a major-minor ring optical fibre receptor and a major-minor ring optical fibre sender as a transmitting-receiving unit of the CAN node, the functions of the major signal selector and the minor signal selector are to dynamically forming an optical fibre working loop, the function of the major ring signal repeater is to realize a signal transfer between the CAN node and the optical fibre loop, and the clock generator is designed to provide a clock signal acquired by the operation of the circuit.