14results about How to "Avoid constraints" patented technology

The invention discloses a portable wearable waste amyotrophy treatment system based on a surface myoelectricity feedback technology. The portable wearable waste amyotrophy treatment system comprises a pair of devices, a button type hydrogel electrode plate and an upper computer. The pair of devices are worn on symmetrical muscles on the left side and the right side of a patient through button type hydrogel electrode plates respectively and used for collecting electromyographic signals of the two muscles and conducting electric stimulation on the two muscles. A hardware circuit in the device communicates with an upper computer, receives a control instruction and sends collected electromyographic signals to the upper computer; electrical stimulation amplitude, frequency and pulse width parameters are controlled to output electrical stimulation waveforms; the upper computer is used for setting electrical stimulation parameters, receiving and processing electromyographic signal data and determining whether to trigger electrical stimulation or not according to an electromyographic value of a patient, and comprises an electromyographic feedback training mode and a rehabilitation treatment effect evaluation module, calculates RMS, MVC and MPF parameters of left and right muscles of the patient in the treatment process and measures limb circumferences of the left and right muscles. And the treatment effect is evaluated.

The invention discloses a pushing type rotary steering structure based on drilling build-up rate prediction, and aims to solve the problem of low build-up rate prediction precision caused by the fact that the influence of an action execution control mode of a pushing block is not considered in the build-up rate prediction process of a pushing type rotary steering tool. Drilling parameters are monitored and acquired in real time, data analysis is carried out, real-time working condition analysis is carried out by combining drilling gaps in the drilling parameters with the deflection angle of a drilling stabilized platform to obtain the current drilling build-up rate, and instructive compensation action is provided for the prediction process of the drilling build-up rate. Specifically, action compensation is actively carried out by a pushing block through a hydraulic execution assembly, on the basis that normal operation of a guiding tool of a small-diameter structure is ensured, mutual influence and restriction between a drilling tool and a well wall in the deep-going process are avoided, the stability and efficiency of drilling operation are improved, and the drilling efficiency is improved. And effective technical support is provided for drilling of a complex well track.

This utility model discloses a die-casting mold that facilitates subsequent burr removal, comprising an upper mold and a lower mold that move in a vertical direction. The lower mold has a forming cavity with its opening facing upwards. The mold also has multiple forming ribs arranged spaced apart from each other in the left-right direction within the forming cavity. The upper mold has forming grooves of the same number as the forming ribs, which fit together one-to-one. The upper ends of the forming ribs are placed in the forming grooves after the upper and lower molds are closed. The surface of the upper end of the forming rib includes a top surface and two upwardly inclined, narrowing left and right slopes. The top surface connects the left and right slopes, and at least a portion of the top surface is parallel to the parting surface of the die-casting mold. The wall of the forming groove includes a groove bottom surface facing the top surface, a left groove side slope facing the left slope, and a right groove side slope facing the right slope. At least a portion of the groove bottom surface is parallel to the parting surface. This facilitates subsequent burr removal operations on the die-cast product.

The application provides an emergency mobile energy storage scheduling method based on satellite terminal distribution and related devices, and relates to power system and communication system cooperative emergency recovery technology. Through collecting meteorological, topographic, combustible, power distribution and communication coordinate multi-source disaster data; building a wildfire equipment availability evaluation model, quantifying the survival confidence of power distribution branches and communication links; constructing a communication recovery model of a low-orbit satellite terminal carried by a unmanned aerial vehicle, and constraining networking by algebraic connectivity; establishing a mobile energy storage power distribution recovery model under the premise of communication accessibility, reconstructing power distribution network topology and providing power support; solving the target of maximizing load recovery and minimizing deployment cost, outputting the optimal scheme of satellite terminal distribution, energy storage configuration and power distribution recovery, and improving post-disaster recovery efficiency.

The application discloses a panoramic image intrinsic decomposition method based on light pre-extraction and belongs to the technical field of image intrinsic decomposition.The application combines the 360-degree expression of a panoramic image to a scene, saves complex light information onto a pre-extraction image through light pre-extraction, directly uses the pre-extraction image as a constraint condition, can realize accurate positioning of a complex light region, improves the decomposition process through the constraint of the complex light region, reduces highlight and shadow information in a reflectivity image, realizes separation from light properties, introduces the pre-extraction image in the determination of a non-local constraint weight, combines the weight with a KNN result, can effectively select appropriate pixel pairs for constraint, improves the adaptability of constraint between different pixel points in a scene, reduces unnecessary constraint, and improves the image quality obtained through decomposition.The application is suitable for the fields of image decomposition and image processing and improves image processing quality.

The utility model discloses an adjusting structure of a dining chair, which comprises a supporting pipe, a pressure rod is mounted in the middle of the supporting pipe, and a seat cushion is rotatably mounted at the top of the pressure rod; the supporting legs are fixedly connected to the outer side of the supporting pipe at equal intervals, a supporting foot is fixedly connected to the bottom of one end of each supporting leg, a trundle is rotationally connected to one side of each supporting foot, and a limiting fixing part is arranged on one side of each supporting foot; the trundle has the beneficial effects that the trundle can be stably and reliably locked at a specified position when the trundle needs to be fixed through the arrangement of the limiting and fixing part, and the safety problem caused by accidental movement of the trundle is prevented; through flexible switching of the trundles and the supporting legs, the dining chair can be easily moved when needed and can be stably fixed when not needed, and the practicability and convenience of the dining chair are improved; the protective shell is attractive, can effectively shield and restrain the caster, and prevents the caster from rotating and swinging to generate noise when the caster is not needed.

The utility model relates to the technical field of machining and manufacturing, in particular to a grabbing robot rail type moving structure which comprises a rail system, a material conveying system, a moving platform, a grabbing robot and a control system. Cooperative operation of the multiple grabbing robots is achieved through the rail type moving structure, a single-line single-device mode is upgraded to a distributed cluster operation mode, operation efficiency is improved, meanwhile, single-point bottleneck is eliminated, material conveying and grabbing rhythm separation is achieved, restriction of starting and stopping of a traditional single device on a whole production line is avoided, production continuity is improved, and production cost is reduced. The method has wide applicability in the fields of industrial automation, logistics storage and the like, and economic benefits are remarkable.

The invention belongs to the technical field of accelerometers, and provides a quartz flexible accelerometer pendulum assembly capable of reducing coil thermal strain, which comprises a quartz pendulum sheet and a coil skeleton, the coil skeleton is in the shape of a circumferentially symmetrical cylinder, and an expansion joint is arranged on a pendulum tongue of the quartz pendulum sheet. The coil framework structure is designed into a cylindrical shape with symmetrical circumference, so that the constraint of the original coil framework base on the deformation of the winding is avoided, and meanwhile, the cylindricity of the winding in a high-temperature environment is effectively improved. The expansion joint is arranged on the pendulum tongue of the quartz pendulum sheet, so that the thermal stress of the winding can be reduced, and the constraint on the winding is further relaxed. The simulation design verifies that the stability of the coil structure is improved, the scale factor temperature coefficient generated by the thermal strain of the coil can be reduced, and the quartz flexible accelerometer pendulum assembly has important engineering application value for improving the temperature adaptability of a quartz flexible accelerometer.

The invention relates to a CSM double-wheel milling construction method, and aims to solve the problems of low efficiency, long operation time, limited application range and the like in traditional underground space foundation pit supporting and waterproof curtain construction. The method comprises the steps of survey lofting, trench excavation, trench forming construction and the like. In the grooving construction process, firstly, slurry (the specific gravity is 1.10-1.25) is prepared, the running condition of a groove milling machine is checked, excavation is started, in the process, a gang tool and a milling wheel are cooled and lubricated by injecting the slurry, and the grooving quality is ensured by continuously monitoring groove section parameters. And after grooving is completed, groove walls are cleaned, and double-wheel milling is adopted for secondary groove grinding or a punching pile machine is adopted for hole sweeping so as to ensure the perpendicularity and flatness of the groove walls. The construction method is suitable for sand layers and muddy silty clay, supporting of deep and large foundation pits and construction of water-stopping curtains can be rapidly completed, disturbance to stratums and environmental influences are reduced, the hole collapse risk is avoided, the construction efficiency is improved, and the construction method is particularly suitable for being used in downtown areas and other limited environments.

The present application relates to a kind of dual-energy X-ray image fusion and R value analysis intelligent mineral sorting method, including dual-energy X-ray image acquisition and pretreatment, multi-band image fusion, R value calculation and grade analysis, sorting model construction, and fusion decision, the quality of input image is improved by image preprocessing, the effectiveness and precision of R value estimation have been improved, multi-band fusion method effectively enhances the effect after ore dual-energy image fusion, based on the estimation method of R value analysis can realize the rapid estimation of ore grade, effectively expand the scale of image feature data, finally, R value estimation result and sorting model output fusion decision are combined, realize the efficient, accurate intelligent sorting of mineral.

The invention belongs to the technical field of iron and steel smelting, and particularly relates to a conveying system and method for irregular materials in a limited operation space, and the conveying system comprises a composite crusher, a Z-shaped bucket elevator, a vertical storage bin and a negative pressure suction and discharge vehicle, an inlet of the compound crusher is communicated with an outlet of the lime blanking bin through a star-shaped feeder; an outlet of the composite crusher is communicated with an inlet of the Z-shaped bucket elevator through a sealing cover, an outlet of the Z-shaped bucket elevator is located at a top opening of the vertical storage bin, a bottom outlet of the vertical storage bin is connected with the negative pressure suction and discharge vehicle through a hose, and material conveying is completed through coarse crushing, lifting conveying, storage and negative pressure suction and discharge. The device has the beneficial effects that a combined scheme of coarse crushing, lifting conveying, storage and negative pressure suction and discharge is adopted for lime screen blanking, and limitation in a limited operation space is overcome; the whole conveying process is good in sealing performance and free of flying dust, and the relevant requirements of the environmental protection department for the production environment are met.

The utility model discloses a vibration cotton box, which belongs to the field of textile machinery and comprises a cotton box shell, and a cotton inlet front guide plate, a cotton inlet rear guide plate, a baffle, a vibration plate with air holes and a cotton outlet roller are arranged on the cotton box shell. The cotton box shell is provided with a pair of hand wheel adjusting assemblies for adjusting the position of the baffle, and the hand wheel adjusting assemblies act on the upper and lower sides of the baffle respectively; an eccentric adjusting assembly is arranged in the shell, a driving shaft which is centered and is in transmission connection with a driving motor is arranged on an adjusting frame of the eccentric adjusting assembly, an adjusting lead screw is arranged in the adjusting frame, a sliding block is arranged on the adjusting lead screw, an eccentric shaft is arranged on the sliding block, and the two ends of an eccentric connecting rod are in pivot connection with the eccentric shaft and the vibrating plate respectively. During working, the driving motor drives the driving shaft to rotate, so that the whole adjusting frame moves, meanwhile, the position of the sliding block can be adjusted by rotating the adjusting lead screw, the position of the eccentric shaft is changed, and then the vibration amplitude and frequency of the vibration plate are adjusted to meet the opening and conveying requirements of different fiber raw materials. The position of the baffle is adjusted through the hand wheel, and operation is convenient.

The invention provides a digital printing image registration method fusing feature registration and deformation optimization, and relates to the field of digital printing, and the method comprises the steps: employing a feature extraction algorithm to achieve global registration; local deformation optimization is carried out in combination with a deformation estimation algorithm; a reduction factor is adaptively introduced in the global registration stage to improve the registration efficiency; in the local deformation optimization stage, superpixel segmentation is performed on the pre-printing original image, and a nonlinear brightness compensation mechanism is introduced according to difference information of corresponding superpixel areas of the printing image and the pre-printing original image, so that the constraint of brightness on a deformation estimation algorithm is overcome. According to the invention, various rigid deformations, elastic deformations and brightness differences between the printing image and the original image before printing which may occur in the printing process and the process of collecting the printing image can be dealt with, so that the registration precision of the digital printing image is improved.

The invention belongs to the related technical field of two-dimensional material devices, and discloses a strain-enhanced multi-sensory fusion photoelectric synapse device and a preparation method and application thereof.The photoelectric synapse device comprises an insulating layer, an electrode and a functional layer which are arranged from bottom to top, and the functional layer is made of an in-plane polarization two-dimensional ferroelectric material; tensile strain is applied to the functional layer in the polar axis direction of the functional layer; the photoelectric synaptic device simulates the perception of visual information through the photoconductive effect of the functional layer, and simulates the tactile sense through the tensile strain. The synergistic effect of the photoconductive effect and the tensile strain significantly enhances the persistent photoconductivity (PPC) of the synaptic device, and the enhancement processing of a fingerprint image is realized through the characteristics of the device. Meanwhile, tensile strain is applied along a specific direction, so that the in-plane polarization intensity is remarkably improved, the restriction of a depolarization field is avoided, the stability and the performance of a ferroelectric device are improved, and a new way is provided for improving the performance of a photoelectric synapse device.