70 results about "Ground force" patented technology

An exoskeleton bracing system includes: a trunk support for affixing to the trunk of a disabled person and leg braces for connecting to the legs of the person, each leg brace including limb segment braces. Motorized joints are adapted to provide relative angular movement between the limb segment braces of the leg braces and between the leg braces and the trunk support. One or more ground force sensors are designed to sense ground force exerted on each of the leg braces. The system also includes a controller for receiving sensed signals from said one or more ground force sensors, with an algorithm for identifying a stance from the sensed signals and, based on the identified stance, actuating the motorized joints to perform an action relating to a mode of locomotion selected from a set of predefined actions corresponding to the identified stance.

The invention relates to a custom-fitting, asymmetric ballet shoe with a shell (9) and liner (13) that enables the dancer to stand en pointe and perform the extreme movements required by ballet choreography with minimal discomfort, pain, and injury to the foot caused by the various aerial ballet maneuvers called for by both traditional and modern choreography. The shoe of the present invention is designed to redistribute the dancer's weight and the ground force reactions associated with dancing en pointe evenly across the toes while translating some of the force away from the distal aspect of the dancer's toes to the rest of the foot. The shoe has a removable cosmetic cover (18) to enable, inter alia, the color and design to be varied according to costume design and the cover's replacement when the fabric is worn, thereby extending the useful life of the remainder of the shoe.

Systems and methods are presented that use the rate of change of a legged robot's centroidal angular momentum ({dot over (H)}_G) in order to maintain or improve the robot's balance. In one embodiment, a control system determines the current value of {dot over (H)}_G, compares this value to a threshold value, and determines an instruction to send to the robot. Executing the instruction causes the robot to remain stable or become more stable. Systems and methods are also presented that use a value derived from {dot over (H)}_G in order to maintain or improve the robot's balance. In one embodiment, a control system determines the location of the Zero Rate of change of Angular Momentum (ZRAM) point (A), determines the distance between A and the location of the center of pressure of the resultant ground force, compares this value to a threshold value, and determines an instruction to send to the robot.

A ground force control circuit (162) for an articulated harvesting head is provided that comprises, an ECU (164); and a first hydraulic control valve (166, 170) driven by the ECU (164), wherein the first hydraulic control valve (166, 170) is coupled to at least one actuator (158, 160) and is configured to maintain a constant pressure in the at least one actuator (158, 160).

An adapted seismic vibrator for obtaining a true ground force comprising: a baseplate pad; a baseplate drive system, wherein the drive system is connected to the baseplate pad and moves the baseplate pad up and down; a vibrator controller electronics, wherein the electronics are connected to the drive system and causes the drive system to move the baseplate pad up and down; and a plurality of load cell sensors disposed between the baseplate pad and ground, wherein the sensors measure the vibrator output force during a sweep. A method of obtaining a true ground force sweep comprising the steps of: using the load cell sensors to measure an actual output force of a seismic vibrator and electronics to obtain an actual ground force data; using inversion to invert the actual ground force data and desired original pilot sweep to obtain a revised pilot sweep that produces a true ground force sweep; and entering the true ground force sweep into the electronics.

An insole which provides cushioning and support to a user's foot subjected to ground forces and/or differing weather conditions encountered during active sports, for example triathlons, is herein disclosed. The insole comprises a base having a bottom side which defines recesses adapted to receive pads and pods having particular properties. The location and materials of the various pads and pods work together to provide ankle and foot stabilization, enhanced cushioning features, and resistance to insole movement during shoe operation.

The invention discloses single prosthetic walking aided training equipment, which comprises medical treatment shoes and a monitor; wherein the medical treatment shoes can perceive the ground force and connected with the monitor; the bottoms of the medical treatment shoes are provided with a plurality of force sensors which transduce the change situation of the sole force by a circuit wafer and a controller, and the change situation of the sole force is displayed by the monitor in real time; a trainee regulates the movement beside the prosthesis according to the variation law of the sole force of a health limb to cause that the force law of the sole of the prosthesis is closes to the health limp, thus accelerating the training process and reducing the training cost. The equipment can intuitively display the force situation of the sole of a prosthetic installer during the walking train so that the trainer correctly regulates the size and balance of the walking force, thus achieving the purpose of reducing the training burden and difficulty and causing the trainer to be quickly suitable for the prosthetic walking.

The invention belongs to a wind-water mixing spray technology which can be applied in underground comprehensive mining, comprehensive digging and in places requiring settling dust so as to improve safe production of a coal mine. The invention is characterized in that the technology is realized through the steps as follows: a wind source pipeline which is connected from a ground forcing fan to an extraction working surface with a selectable wind pressure of between 0.5 and 0.7MPa is in parallel connection with a water source pipeline which has certain pressure with a selectable hydraulic pressure of between 3 and 5MPa, and the volume ratio of the mixed wind and water is between 100-135 to 1; the wind source pipeline and the water source pipeline are both connected to nozzles of internal spraying and external spraying of a coal mining machine and a mechanical boring machine, so that wind-water mixing atomized water vapor is sprayed with a flow rate of between 15 and 20M<3>/minute; and the atomized water vapor captures coal dust, and disperses local gas generated during cutting a coal body. The invention aims to solve the problems caused by the local gas which is generated during settling dust and cutting coal and can not be dispersed in time, such as safety threat in production, water resource waste, affected coal quality, slipping belt, slipping goods, bin blockage or other problems.

An article of footwear includes an outsole having first and second treads constructed from a first material and defining first and second ground contacting surfaces. The second tread includes a layer of a second material below the first material, the second material being less abrasion resistant than the first material. The second ground contacting surface of the second tread extends below the first ground contacting surface of the first tread. The second tread is configured to move upward when the second ground contacting surface engages a ground surface to distribute a ground force upon both the first tread and the second tread. The second material of the second tread is abraded by the ground surface less than it would have been had the second tread remained at the second distance upon application of the ground force.

Described herein are embodiments of an electromagnetic system that can be used to replace the traditional hydraulic oil systems that actuate mass movement. The embodiments described herein provide wide frequency range operation, ground force application with high fidelity, and low environmental impact. Embodiments described herein can be used for seismic exploration and vibroseis applications, among other uses.

The invention discloses a standard planting method for rhizoma bletillae and blueberry intercropping. The method adopts the rhizoma bletillae and blueberry intercropping patterns, and comprises the following steps of: A good seed selection; B. land selection and field settlement; C transplanting and planting; D. field management; E harvest. The standardized planting method for rhizoma bletillae and blueberry intercropping makes full use of the beneficial relationship between rhizoma bletillae and blueberry, and makes up a reasonable composite group structure, and fully utilizes light energy and ground force to ensure stable production and increase. The 3-year-old rhizoma bletillae can yield up to 500kg/mu (fresh) and 110kg/mu (dry) in normal years, and the high yield of rhizoma bletillae is achieved; the planted blueberry seedlings can be harvested, and the blueberry fresh fruit output can reach 800kg/mu. The high utilization ratio can effectively solve the contradiction of arable landtension, and the method has the advantages of large planting scale, increasing production and income, high quality and high efficiency, and can achieve good economic benefit, social benefit and ecological benefit.

In a crop harvesting header with a center section and two wings where each wing is pivotal relative to the center section about a pivot axis extending in a generally forward direction which includes a balance system to maintain a balanced ground force distribution across the width of the header there is provided an automatic adjustment system for maintaining proper balance. The system includes angle or other sensors which detect the pivot angle of the wing section. This can be used in a static testing system where the position to set to a detected midpoint and/or in a dynamic system where repeatedly, over a time period during which the header is operating, data is detected relating to the positions of each wing frame portion.

The invention discloses a ground expansion deformation control and force-bearing protection method for a plant for vehicle passing. According to the method, expansion joints are arranged in a ground structure of the plant for vehicle passing to conduct ground expansion deformation control, and meanwhile, expansion joint force transmission structures are arranged in the expansion joints to conduct ground force-bearing protection. The method is characterized in that horizontally-arranged plate-like members are adopted in the expansion joint force transmission structures to enable the two ends of each expansion joint force transmission structure to be connected to the two side walls of the corresponding expansion joint, and at least one end of the expansion joint force transmission structure is a free end which is not restrained in the horizontal direction. By means of the method, while the function of the ground expansion joints is not affected, the force bearing and transmitting effects of the ground on the two sides of the expansion joints can be improved, and the ground protection effect is improved.

A method for calculating intermodulation noise generated with one or more land seismic sources. The method includes receiving seismic data (g) generated by actuating the one or more land seismic source with a single sweep; selecting a number of detectors (a-f) that detect a subset (ga-gf) of the seismic data (g); estimating earth responses (ha1-hf1) based on (i) the subset seismic data (ga-gf) and (ii) a ground force (gf) of the one or more land seismic source; calculating plural intermodulation noises (noiseA1-noiseF1) for the number of detectors based on the earth responses (ha1-hf1); and removing the plural intermodulation noises (noiseA1-noiseF1) from corresponding detector signals (ga-gf) to mitigate the intermodulation noise effect.