Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

37 results about "Barefoot" patented technology

Barefoot is the most common term for the state of not wearing any footwear. Wearing footwear is an exclusively human characteristic, however some animals held by humans are also issued with footwear, such as horses and, more rarely, dogs and cats. There are health benefits and some risks associated with going barefoot. Footwear provides protection from cuts, abrasions, bruises, and impacts from objects on the ground or the ground texture itself, as well as from frost or heat burns, and parasites like hookworm in extreme situations. However, shoes can limit the flexibility, strength, and mobility of the foot and can lead to higher incidences of flexible flat foot, bunions, hammer toe, and Morton's neuroma. Walking and running barefoot results in a more natural gait, allowing for a more rocking motion of the foot, eliminating the hard heel strike and therefore generating less collision force in the foot and lower leg.

Fracturing packer for barefoot well

The invention relates to a fracturing packer for a barefoot well, comprising an upper connector, an upper rubber cylinder sheath, an inner pipe, a rubber cylinder, a lower rubber cylinder sheath, a one-way pressure limiting valve body, a one-way valve, a pressure limiting valve and a lower connecter, wherein the rubber cylinder is sleeved outside the inner pipe, the upper connector, the inner pipe, the one-way pressure limiting valve body and the lower connector are sequentially connected, the lower part of the upper rubber cylinder sheath covers the upper part of the rubber cylinder, the upper part of the upper rubber cylinder sheath is sleeved outside the upper connector, the upper part of the lower rubber cylinder sheath covers the lower part of the rubber cylinder, the lower part of the lower rubber cylinder sheath is sleeved outside the one-way pressure limiting valve body, the one-way pressure limiting valve body is provided with a vertical hole channel and a radial communicated hole, the vertical hole channel and the radial communicated hole are communicated, the one-way valve is installed on the vertical hole channel, and the pressure limiting valve is installed under the vertical hole channel. Duo to the pressure limiting valve, overpressure of the rubber cylinder is prevented, long-term effective working of the rubber cylinder is ensured, thereby the invention is suitable for fracturing operation of the barefoot well in an oil field; and the rubber cylinder is permanently kept in an expansion status by designing the one-way valve, therefore, the invention is suitable for the requirements for permanently plugging the bottom of the barefoot well in the oil field.
Owner:东营市兆鑫工贸有限责任公司

Footprint expression method combining regional confidence and pressure distribution direction intensity

The invention provides a footprint expression method combining region confidence and pressure distribution direction intensity. The method at least comprises the following steps: obtaining a to-be-identified footprint image and preprocessing the image; partitioning and integrating the to-be-identified footprint image, and calculating the integrated footprint image; calculating the confidence coefficient of the partitioned footprint image region; and carrying out feature selection on the obtained pressure direction gradient features of the regional confidence coefficient through a principal component analysis technology and a linear discriminant analysis technology based on the footprint feature expression of the regional confidence coefficient. The method does not directly extract the characteristics such as the length and the angle of the footprint, so that the method is not easily influenced by noise. Meanwhile, footprint heavy pressure distribution and contour shape information areconsidered, and the distribution characteristic of plantar pressure when people walk can be better embodied. Furthermore, the method adopted by the invention eliminates the influence of textures whenthe socks are worn, does not need to distinguish the barefoot from the socks, and is wider in applicability.
Owner:DALIAN MARITIME UNIVERSITY

Method and a system for identifying the same person based on barefoot footprints

ActiveCN109583452AImprove the efficiency of case resolutionImage enhancementImage analysisData setFeature extraction
The invention relates to a method and a system for identifying the same person based on barefoot footprints, and belongs to the field of footprint processing. According to the technical scheme, the method comprises the following steps that A1, inputting barefoot or sock wearing footprint data; A2, unifying footprint data attributes; A3, performing data preprocessing; A4, making a barefoot image data set; A5, carrying out data training and feature extraction; And A6, verifying, and adjusting and identifying a training model. Beneficial effects are as follows: the device is convenient to use; According to the method and the system for identifying the same person based on the barefoot footprint, the problem that a biological material evidence for identifying the same person is commonly used in a crime scene can be solved; A model of the same personal identification algorithm is obtained by training through a machine learning CNN network, and the barefoot footprint obtained from a crime scene is used as a test image to be input into the model, so that the same personal identification can be carried out. The scheme of the invention has the beneficial effects of assisting the public security department in case analysis and promotion and improving the case solving efficiency of the public security department.
Owner:DALIAN EVERSPRY SCI & TECH

Swimsuit with pressure reducing and speed increasing functions

InactiveCN114557498AGarmentsRoller skatingBarefoot
The invention relates to a swimsuit with pressure-reducing and speed-increasing functions, in particular to a pressure-reducing and speed-increasing swimsuit suitable for water sports of popular competitions and entertainment. According to a drawing pin point pressure reduction principle, a plurality of hot fix rhinestones are firmly adhered to the outer surface of a common swimsuit according to a certain arrangement mode. Compared with a common flat swimsuit, when a participant wears the swimsuit, the participant advances in a fixed novel experience type swimming pool (similar to the characteristics of a common swimming pool) or launches (strikes) the suspended balls in the water, and the swimsuit has the obvious effects of reducing the head-on resistance, namely reducing the pressure and increasing the speed. A participant wears a pressure-reducing swimming cap on the head, wears a pressure-reducing long sleeve, a pair of trousers and a swimsuit, barefoot or a pair of roller skates on the body, does moving water sports such as walking or roller skating in a swimming pool, and can also do water body-building entertainment sports such as back-and-forth ball hitting and ball playing in water. The water-based swimming pool is suitable for people, can enter a common swimming pool, can recognize water, and has a certain age, for example, people of all ages, such as older than 8 years old.
Owner:徐兰萍

Shoe size measuring all-in-one machine

PendingCN113124978ALimit positionReduce wearFoot measurement devicesDiagnostic recording/measuringTalipes equinovarusTalipes equinocavovarus
The invention discloses a shoe size measuring all-in-one machine, and relates to the technical field of shoe size measuring, in particular to a shoe size measuring all-in-one machine which comprises a base, an auxiliary measuring mechanism and a vertical plate perpendicular to the base are arranged on the base, a plurality of wiring harness limiting mechanisms are arranged in the base, and a height measuring mechanism and a connecting frame parallel to the vertical plate are arranged on the vertical plate. The connecting frame is fixed to the vertical plate through bolts, and a display screen is arranged in the connecting frame. An auxiliary measuring mechanism arranged on the machine drives a motor to roll a film through a shaft rod, pull the film to move and pull a reel to rotate through the film, a user can tread on the surface of the film with barefoot, the film is rolled through the shaft rod, the film can be replaced, and the acting point of the sole is judged according to the degree of wrinkles borne by the film. And whether foot diseases such as flatfoot, splay-in, splay-out or talipes equinovarus exist or not is measured, the size of the sole is measured, and the size of the shoe worn by the sole corresponds to the size of the shoe worn by the sole through calculation of a chip in the machine.
Owner:孟锋

An automatic person identification method based on barefoot or socks footprint images

The invention provides an automatic person identification method based on barefoot or stockinged footprint images. The method includes the steps that (S1) the number of footprints is calculated, if only one footprint exists, the step S2 is executed, and otherwise, the step S3 is executed; (S2) structure shape and pressure features of the footprint are extracted, and the step S4 is executed; (S3) related features of cluster footprints are extracted if multiple cluster footprints exist, single footprint partition is carried out, structure shape and pressure features are extracted, and the step S4 is executed; (S4) feature query is carried out, similarity analysis and scoring are carried out on the footprint features and individuals in a sample database, and the step S5 is executed; (S5) if the score is smaller than a certain score, the step S6 is executed, and otherwise, the step S7 is executed; (S6) feature training is carried out on the extracted footprint features, the sample database is updated, and the identification process is over; (S7) the individual with the highest score serves as a query result and is output, and identification is over. By means of the method, quantitative statistics and scoring can be carried out on the features of the footprints, automatic footprint identification is achieved according to scoring results, and accordingly person identification is achieved.
Owner:DALIAN EVERSPRY SCI & TECH

Footprint geometrical shape characterization method based on combination of polynomial fitting and right-angle filtering

The invention provides a footprint geometrical shape characterization method based on combination of polynomial fitting and right-angle filtering, and the method comprises the steps: S1, obtaining a barefoot footprint image, and carrying out the preprocessing of the barefoot footprint image; s2, based on the pre-processed barefoot footprint image, judging a left barefoot and a right barefoot; s3, representing a left plantar leading edge line based on a 9-order polynomial; s4, representing a right plantar leading edge line based on a 9-order polynomial; s5, based on a right-angle filter, extracting toe contours; s6, extracting the outer contour of the barefoot footprint; and S7, representing the barefoot contour. According to the invention, a right-angle filter is adopted to find gullies between toes, namely concave and convex points, and the toes are separated through the concave and convex points between the toes; according to the method, the distance relation between the centers of the toes is considered, if the toes which are wrongly separated appear, the centers of all the connected domains can be solved, and if the distance between the center points of the two connected domains is too close, the two connected domains are expanded into one connected domain.
Owner:DALIAN MARITIME UNIVERSITY

Suspended water ball in swimming pool

The invention relates to a suspended water polo in a swimming pool, in particular to a suspended water polo which is manufactured in an experience type flat-bottom swimming pool with the characteristics similar to those of a common flat-bottom swimming pool according to the requirement of suspending at a certain water level. The water polo is a point-to-point series water polo which is selected and modified according to the requirements of the drawing pin pressure reduction principle, the appearance structure, the water polo stress condition, the balance factor and the like. A participant wears a pressure-reducing swimming cap on the head, and wears a pressure-reducing long sleeve, a pair of trousers swimsuit, barefoot or roller skate on the body. In the experiential swimming pool, the user can breathe on water and play the ball underwater in an upright state, so that the user can breathe on water and play the ball underwater with certain interestingness and ornamental value. A suspended water polo in a swimming pool is mainly used in the following three exercises: (1) one person aims at ceramic tile walls on four sides of the swimming pool to play a ball (in an allowed experience type swimming pool); and (2) single-shot (two face-to-face erectors) or double-shot (four face-to-face erectors). And (3) competition balls (10 erectors, 5: 5) of the roller skating hockey.
Owner:徐兰萍
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products