269 results about "Path design" patented technology

The invention discloses an unmanned aerial vehicle automatic obstacle avoidance flight system based on a panoramic stereo imaging device. The unmanned aerial vehicle automatic obstacle avoidance flight system comprises an image acquisition module, a navigation module, a central processing unit module and a flight controller module, wherein the image acquisition module is used for collecting omni-directional stereoscopic scenes through the refraction and reflection type panoramic stereo imaging device; the navigation module is used for providing geographical coordinate information; the central processing unit module is used for conducting obstacle point detection and judgment and extraction of effective flight path obstacle points on the omni-directional stereoscopic scenes obtained by the image acquisition module according to the geographical coordinate information provided by the navigation module and designing an optimal fight path; the flight controller module is used for controlling an execution mechanism module on an unmanned aerial vehicle to conduct corresponding flight actions in real time according to the optimal fight path designed by the central processing unit module. The unmanned aerial vehicle automatic obstacle avoidance flight system based on the panoramic stereo imaging device can effectively plan the optimal fight path for the unmanned aerial vehicle in a three-dimensional environment.

The invention relates to a laser cutter that consists of a host worktable device and an adjacent material rack device that can be controlled by a control system. A material rack synchronous lifting mechanism is used for carrying out height lifting on an upper material rack and a lower material rack on a material rack platform; furthermore, the material racks are alternatively sent in a worktable for working by a worktable transmission mechanism; and when a workpiece on one material rack is cut, the other material rack can carry out the feeding and discharging operation, therefore, the production efficiency is improved greatly and the safety of an operator is ensured. An optical fiber laser can run at high speed on a machine tool; the positioning and cutting operation can be realized quickly and exactly by a longitudinal positioning mechanism, a transverse positioning mechanism and a vertical positioning mechanism controlled by a system; and the precision is high and the action is safe and reliable. By adopting the reasonable wind path design, smoke and dust generated during the cutting process can be effectively processed, therefore, the laser cutter is environment-friendly and safe.

The invention discloses a method for detecting an electric power circuit by a flight inspection robot, and belongs to the technical field of noncontact type detection of the electric powder circuit. The method uses a minitype helicopter as a carrier; firstly, a two-dimensional simulation detection model of the flight inspection robot for the electric power circuit is established; secondly, a mathematical description method is used for establishing a target function, a constraint condition target function and a programming variable for the two-dimensional simulation detection model; and finally, according to a programming flight path designed by the two-dimensional simulation detection model, the flight inspection robot inspects the electric power circuit. The method overcomes the disadvantages that a working mode of manual inspection and manual paper medium recording can not ensure the in-place of inspectors and has inaccurate or irregular defect description, and avoids the problems that the manned helicopter used for inspection has high requirement on technique and experience of workers, the workers are required to wear specific work clothes and manpower and material resources are consumed largely. Though disposable input is large, the quality and efficiency for task completion of the method is far higher than that of the prior other modes.

The invention provides configuration of a satellite loaded with a large deployable antenna with double reflecting surfaces. The relative position relation of a feed source array, a main reflecting surface and an auxiliary reflecting surface in an in-orbit flight state is guaranteed, main force transfer path design is optimized through design of a payload capsule in a truss structure style and reasonable layout and placement while the constraint conditions about enveloping of a fairing of a carrier rocket and correct deployment of the large deployable antenna are met, compactness and reasonableness of structure space of the large deployable antenna in a folded state can be guaranteed, meanwhile, the deploy path requirement of the large deployable antenna is met, and the area of a satellite solar cell array is guaranteed by fully using the enveloping space provided by the carrier rocket.

The invention relates to the design technology of computer-assisted cable laying, in particular to a method for designing a cable path of a nuclear power station according to an established cable bridge network. The method comprises the following steps of: establishing the matching relation between a cable and a bridge, and establishing a one-to-one relation list between the type and series colorcodes of the cable and the type and series color codes of the bridge; modeling equipment at two ends of the cable in a database, and establishing data of the cable in the database according to a cable list; arranging reasonable approach points for the equipment at two ends of the cable according to the arrangement condition of the equipment, so that the approach points are used as a starting point and a terminal point in the cable path design process; and selecting the path reasonably according to a cable bridge network data model to lay the cable. When the method is used, the design of the cable path can be completed quickly, and problems of layer jump, the rationality of laying, work efficiency and the like in the conventional cable path design also can be solved.

The invention discloses a melting path design method for high energy beam selective melting forming. The method comprises the following steps: 1, acquisition of layered section images of a to-be-machined workpiece: layered section images of multiple layers of the to-be-machined workpiece are acquired and stored, wherein the section of each layer is a to-be-machined area; 2, contour extraction: the contour of each layer of section image is extracted; 3, melting path filling: melting path filling is performed on the multiple to-be-machined areas respectively, melting path filling for any to-be-machined area comprises the following steps: surface layer scanning path filling, inner core scanning area determining and inner core scanning path filling. The method has simple steps and is reasonable in design, convenient to implement and good in use effect; a melting path for high energy beam selective melting forming can be designed simply, conveniently and rapidly, the designed melting path is reasonable, the workpiece machining precision is high, all parts of the workpiece are uniformly heated, and the workpiece has excellent mechanical properties.

The invention relates to a design method for cable laying and a cable laying system. The method comprises following steps: creating a three-dimensional model for a cable channel; setting up a cable channel model database; planning layers of the cable channel, the number of layers of the cable channel and the arrays of the cable channel, and encoding the cable channel in a segmented manner, arrays and layers; setting up an equipment positioning database; planning positions of a measuring instrument and control equipment on the spot; guiding the cable channel model database and the equipment positioning database into cable laying software and inputting setting value; and finishing a best cable laying path design after a cable laying path list is automatically generated by cable laying software. The design method for cable laying and the cable laying system have following beneficial effects: by automatically generating the cable path list, deign efficiency is increased; by effectively planning the cable laying path, cable bridges can be reasonably distributed; the problem of repeatedly laying due to unresonable laying of circuits is eliminated; investment waste is avoided; engineering speed is ensured; a clear cable path is provide for a foundation of precise cable length calculations.

The invention discloses a rail-mounted robot walking path changing device and an implement method thereof. The rail-mounted robot walking path changing device comprises a direction changing platform and a plurality of path rails different in the direction. The direction changing platform can be docked with any one of the path rails and comprises a platform base, a platform telescoping mechanism, a platform rotating mechanism and a platform mounting plate, wherein the platform base is connected with the platform telescoping mechanism, the platform telescoping mechanism is connected with the platform rotating mechanism, and the platform rotating mechanism is fixed on the platform mounting plate. The rail-mounted robot walking path changing device has the advantages that multi-channel coexistence and multi-direction selection are realized, one robot can complete jobs in many directions, and operation coverage rate is increased; the rail-mounted walking path changing device is high in applicability to path direction changes and applicable to various angle requirements, the defects of singularity in angle of turn of the curved rails and the paths are overcome, and design randomness of the paths is realized.

Methods are provided for allocating assets of defined benefit or defined contribution investing plans that yield the highest post-employment standard of living given a level of risk acceptable to plan participants, and that minimize saving rates and risk. The Nash equilibrium glide path representing a series of time-dependent investment portfolios including multiple asset classes is generated, taking into account demographic data for plan participants and at least one selected risk tolerance level, and utilizing computer-implemented optimization. Multiple moments of a stochastic present value of future cash flows are calculated, and a matching distribution is selected. Risk analysis of the glide path and financial commitments utilizes this matching distribution.

The invention can be applied to the field of laser radar by providing a laser radar optical system based on time-of-fly method. The system structure compriseslaser machine;light path scanning device which deflects the laser path emitted from the laser machine to make it point to the target;light converging unit which converges the light reflected by the target object receiving the light from the light path scanning device; and photo-detector which receives the reflected light from the target converged together by the light converging unit and send out the electrical signals; among which the light converging unit andphoto-detector are all aligned to the same axial direction of the emission axis of the laser machine. The invention effectively solves the problems of the reduced service life of the radar rotating parts caused by the prior arts of rotation mechanism realized by slip rings in the radar design, also can simplify the light path design of the rotating laser radar, reduces the design and manufacturing costs of laser radar.

A system for absorbing and distributing front impact forces in a vehicle is provided, the system including a primary impact system and a secondary impact system, each of which includes a bumper and a structure for transferring impact loads. The primary impact system includes a primary bumper and a pair of front rails spaced apart in a widthwise direction with each rail extending lengthwise, where one end portion of each rail is mechanically coupled to the vehicle's bumper and the other end portion of each rail is mechanically coupled to a torque box. The secondary impact system includes a secondary bumper and an assembly of sub-frame components separate from the front rails that allow impact loads to be transferred in parallel through the front rails and the sub-frame.

An exercise apparatus having a pair of support pedals that, when a user steps upon both pedals, can be moved by the user in a closed path that is designed to be complimentary in motion to that of the user's natural stride. The pedals are operably connected by a linkage that facilitates this natural motion. Moreover, this linkage can be adjusted thereby altering the shape of the closed path traveled by the pedals. The closed path can thus be altered to conform to the optimal biomechanics of each individual user or, it can be altered to form a closed path designed for more of a striding type of exercise or for more of a climbing exercise, thereby allowing different muscle groups to be exercised on the same machine.

Adding guided light strip array high-power semiconductor laser device (High-Power Laser Diode Bar , LD for short) reshaping method: (1) by calculating the product of the optical fiber core radius and half of the angular aperture, and the optical parameter product of the LD light beam in the direction of quick, slow axis, ascertain the number of times which the LD light beam needed to reshaping, to make reshaping implement with high reflecting efficiency; (2) adopting the quick, slow axis collimation lens array to collimates in two direction of the quick, slow axis alignment of LD, getting the strip collimation facula; (3) assembling reshaping implement , realizes reshaping of the light beam; (4) assembling the focusing lens and optical fiber, adjusting the optical fiber to the right location , making the outputting power of LD maximal;(5)entrancing the guided light in proper location of the reshaping implement, adjusting the guided light to appropriate location, makes the luminous power of the guided light which is output from the optical fiber maximum. The light path design is reasonable and compact, has not changed the light path of LD, has avoided leading into new scattering and reflecting loss, guarantee light path stability of LD.

The invention provides a forestry health evaluation system based on aerial remote sensing. The system adopts three indexes of tree density, tree growth form and vegetation layer temperature to evaluate the health condition of a forestry, the forest health conditions are analyzed and evaluated from different angles, the three indexes can be used independently, and two or three of the three indexescan be used comprehensively, so that the forestry health research and evaluation capacity is improved. The unmanned aerial vehicle and the 3S technology are combined, so that the innovation speed of the evaluation method is increased, the quantitative research of the healthy forestry is promoted, and the relations among the evaluation indexes are balanced and known deeply, and a perfect forestry health evaluation system is established. The unmanned aerial vehicle is specially designed for the forestry health evaluation system and can obtain the data needed by multiple evaluation indexes at thesame time, an unmanned aerial vehicle flight control system and a geographic information system are combined to fully utilize the geological landform characteristics and the geographic information data of a cruise area, the cruise path design is scientific and reasonable, and the advantages of the unmanned aerial vehicle for evaluating the forestry health are fully exerted.

The invention provides a UAV three-dimensional path design method based on a global optimal brainstorming algorithm. The method comprises steps of firstly, initializing the parameters of an environmental map and a UAV path; secondly, initializing a path population, using a variable included in each individual in the population as a control point of a B spline, and generating a specific path from astarting point to an end point by the control points; designing a cost function by using the flightability, safety and economic factors of the specific path as optimization target, and initializing the weight of the optimization target; and finally, performing iterative optimization on the cost function by the global optimal brainstorming algorithm to obtain the optimal three-dimensional path ofthe UAV. The method satisfies the dynamic constraint condition of the continuous curvature and the maximum curvature of the UAV path, and can quickly obtain a flight path with good flightability, safety and economical efficiency, and the path can be directly used for guiding the actual operation of the UAV, and is not required to be subjected to subsequent smoothening and adjustment.

It is a wavelength-adjustable optics filter, which comprises fiber calibration couple module, polarization process module, optics thin film and plane reflection lens. It provides the total linear polarization beam through fiber calibration couple module and polarization process module to the optics thin film filter and then rotate the optics thin film filter to realize the adjusting functions of wavelength. The light path design adopts double-pass style, which comprises front and back beams in light path transmission.

The invention belongs to the technical field of composite material formation, and relates to a method for automatically laying tapes to manufacture a composite material beam. The method comprises the following steps: unfolding spreading layers to plane spreading layers on which a tape laying machine is the easiest to operate via unfolding beam spreading layers, laying up the spreading layers in groups, in batches and in sequence via calculating fiber angles and designing tape laying routes by a computer, and then using technological means such as vacuum auxiliary formation to put the spreading layers back onto the forming tooling of the beam. Therefore, the automatic tape laying manufacture of the composite material beam is realized, the manufacturing cost is greatly reduced, and the production efficiency is improved.

The high precision multifunctional wide spectrum radiation comparison system comprises the light source, incoming light path, monochrometer, spectral response ratio inspection module and spectral transmission ratio inspection module. It combines detector spectral response ratio, material spectral feature, using grating double monochromator DK242 and standard detector based on low temperature radiometer delivered information, realizing optical sensor and material high precision spectral feature inspection using special light path design. It solves the analytical contradiction well, effectively improves the inspection precision. It finds that the uncertainty level of the system is 10-3-10-4. It provides convincing theoretical reference and testing instrument for all kinds of sensor calibration and material spectral feature analysis.

The invention relates to a full-automatic multi-parameter nutrient salt analysis method and an apparatus for implementing the method. The apparatus adopts artificial sea water as carrying current to eliminate the matrix effect in a sea water sample due to the high salinity change, wherein the prepared NaCl concentration of the artificial sea water is the same as the NaCl concentration of the sea water; five nutritional ingredients of nitrate nitrogen NO3<->, nitrite nitrogen NO2<->, ammonia nitrogen NH4<+>, phosphate PO4<3-> and silicate SiO4<2-> can be synchronously analyzed; a unique flow path design is adopted, such that the problem of the mutual interference between the silicate and the phosphate during the determination can be avoided.

A bit slice data path design is provided. Multiple chips are coupled to a data bus and configured to process a slice of data for the data bus. One chip in the design is designated as a master chip and the other chips are designated as slaves. A master chip sends a signal from a first time domain to a second time domain through a synchronization circuit. When the signal has been synchronized to the frequency of the second time domain, the signal is sent to the slave chips through a connection. The signal is also looped back to the second time domain in the master chip so that the signal reaches the second time domain in the master and slave chips in the same clock cycle.

The invention relates to a projector which comprises a monochromatic light source array, a light splitting device, a light conversion device and a light guide pipe. The monochromatic light source array is used for sending out first monochromatic light. The light splitting device is arranged on a light path of the first monochromatic light and used for transmitting partial first monochromatic light and reflecting partial first monochromatic light. The light conversion device is arranged on a transmission light path of the light splitting device and used for converting the first monochromatic light into second monochromatic light and third monochromatic light and reflecting the second monochromatic light and the third monochromatic light to the light splitting device. The light splitting device is also used for reflecting the second monochromatic light and the third monochromatic light. The light guide pipe is arranged on a reflecting light path of the light splitting device and used for mixing the first monochromatic light, the second monochromatic light and the third monochromatic light into uniform white light. The projector can obtain a white light source by utilizing the monochromatic light source array and the light conversion device and also can be matched with the corresponding light path design to be miniaturized while the utilization rate of the monochromatic light source array is improved.

The invention provides a 3D printing in-situ repairing system for metal part damage and a repairing method thereof. According to the 3D printing in-situ repairing system for metal part damage and therepairing method thereof, rapid in-situ repairment can be carried out on the damage of parts of a high-speed train, the repairing quality is good, and the efficiency is high. The repairing system comprises a mechanical arm, a laser-TIG composite welding gun, a wire feeding device, a space scanning camera shooting device, a printing path design device, an interlayer temperature monitoring device, an interlayer quality control device and a control terminal, wherein the laser-TIG composite welding gun and the wire feeding device are installed at the tail end of the mechanical arm, the space scanning camera shooting device comprises a laser contour scanner for carrying out three-dimensional outline scanning on the defect portions of the parts, the printing path design device is used for acquiring three-dimensional outline data of the defect portions of the parts, setting the layer thickness of a layer to be printed, determining the printing starting point for the layer to be printed and determining the printing path of the layer to be printed, and the interlayer quality control device comprises an interlayer temperature control sub-device and a cladding layer quality optimization sub-device.

The object of the invention is to provide a method and a dispenser in which, compared with known dispensers, the fluid path design is simplified. The dispenser has a medium reservoir (19) containing a medium to be discharge during one discharge stroke of the dispenser (11). For this purpose a feed fluid flows through the medium reservoir and discharges the medium through a reservoir discharge opening. For producing a discharge stroke, the dispenser has an actuator (25), whose actuation at least indirectly leads to an impact spike (29) penetrating from the outside into the medium reservoir (19), so as to produce a connection between a pump (40) for a feed fluid and the medium reservoir. As a result of the pressure of the feed fluid flowing into the medium reservoir, at a point in the medium reservoir (19) differing from the entry point of the impact spike (29), an opening is formed.

The invention relates to a micro optical fiber biosensor for detecting nitric oxide concentration in an organism, which comprises a light source, an input optical fiber, a NO optical fiber fluorescent micro probe, an output optical fiber and an information acquiring and data processing system. The micro probe of the sensor is manufactured by processing multi-mode silica optical fibers by using 157nm ultraviolet short pulsed laser technology, and a NO sensitive film is prepared from a NO fluorescent indicator and a high molecular base material. Fixed on the optical fiber micro probe by a physical adsorption method, the sensitive material can be reacted with the NO in the environment to obviously change fluorescence strength signals, so that the detection of the NO concentration can be performed. The detection system of the sensor adopts a reflection type light path design, is quick and convenient in use, and has high sensitivity and precision and good anti-interference performance and stability.