87 results about "Passive motion" patented technology

The present invention is a method and system for detecting and tracking shopping carts from video images in a retail environment. First, motion blobs are detected and tracked from the video frames. Then these motion blobs are examined to determine whether or not some of them contain carts, based on the presence or absence of linear edge motion. Linear edges are detected within consecutive video frames, and their estimated motions vote for the presence of a cart. The motion blobs receiving enough votes are classified as cart candidate blobs. A more elaborate model of passive motions within blobs containing a cart is constructed. The detected cart candidate blob is then analyzed based on the constructed passive object motion model to verify whether or not the blob indeed shows the characteristic passive motion of a person pushing a cart. Then the finally-detected carts are corresponded across the video frames to generate cart tracks.

A passive-motion having a support surface provided by a plurality of bellows-like or bladder-like cells which are sequentially or independently inflatable and deflatable to alter the configuration of the support surface continuously to cause a person seated on the support surface to continuously and instinctively adjust the additude of his spinal column and associated muscles.

An automatic functioning light and warning system with remote signaling for use with mobility assistance devices, such as wheelchairs and walkers, having a housing, at least one detachable clamp connected to the housing, a battery-powered light incorporated into the housing, an internal audio alarm incorporated into the housing, an active or passive motion detection sensor and associated signal processing circuitry incorporated within the housing. The invention may use replaceable or rechargeable batteries as the power source. The remote receiver may be a stand alone device or interfaced into a monitoring system. A time delay circuit may be incorporated into the invention to automatically turn the light or alarm off at a predetermined time after activation and a sensor that prevents actuation of the light source when ambient light is above a predetermined threshold.

There is provided a continuous passive motion (CPM) machine with integrated mechanical deep vein thrombosis (DVT) prophylaxis for providing simultaneous CPM therapy and DVT prophylactic therapy to a human patient. The passive motion machine may include a base, at least one motor, one or more hinged frame rails, one or more support or suspension structures and a roller assembly. The hinged frame rails are driven to impart CPM to a patient's limb. The roller assembly can be a single roller, a multiple roller unit, or a belt and roller apparatus. A motor and connecting drive rotates the roller assembly. The roller assembly engages the patient's limb and the one or more rollers apply a mechanical DVT prophylaxis therapy to the limb, reducing the risk of blood clotting.

Apparatus provided for the measurement of skeletal joint motion in a subject which comprises a passive motion device, an imaging device and a processing system incorporating a means for real time digital sampling of images of moving joints, means for recognising templates attributed to individual bones and tracking these automatically using cross-correlation functions and means for geometric transformation of the positional data to graphically display their relative motion over time. Also provided is a method for the automated measurement of the relative motion of skeletal structures in vivo using such apparatus and a method for the diagnosis of a pseudoarthrosis in a subject which comprises the use of such apparatus.

The invention discloses a tail-suspended rat fixing device, which comprises a rat fixing box, a tail suspension device and an angle adjusting device. The invention also provides a tail-suspended rat vibration/motion training device, which comprises a motion track limit device, a vibration training device, an active motion training device, a passive motion training device, a rat hind limb fixing device and a height adjusting device. The invention also provides a vibration/motion control device, which comprises a display screen, a key, a direct-current motor speed adjusting knob, a power supply adapter, a switch, a USB interface and an internal circuit, wherein the direct-current motor speed adjusting knob is used for adjusting the rotating speed of a direct-current motor during passive motion training; the power supply adapter and the switch are used for supplying power for the whole device; the USB interface is used for carrying out function expansion later; and the internal circuit is used for controlling and quantifying rat vibration/motion training and supplying power. The device can keep the same tail-suspended height, can carry out equal-length and equal-tension motion by combining vibration and motion training, and simultaneously achieves training quantification and control.

A jaw exerciser for providing passive motion therapy such as that used to treat trismus is provided. The jaw exerciser has a user-adjustable distance between the upper jaw support and the lower jaw support. The jaw exerciser includes a shaft, a first or upper jaw support frame including a first jaw support, a second or lower jaw support frame including a second jaw support, a distance adjuster which may be in the form of a jack screw for manually adjusting the distance between the first jaw support and the second jaw support, and a retaining screw. The jack screw may be received by the second or lower jaw support frame and engage the first or upper jaw support frame. Removable bite pads may optionally be provided for installing on the first jaw support and the second jaw support.

An active and passive motion device for therapeutic exercise of upper and lower extremities, in the form of a pedaling device for therapy of leg and associated articulations. The device comprises a combination exercise stand and active/passive pedaling device that enables users with and/or without motor skills to remain generally stationary and seated in a chair or wheel chair and use their legs to actively pedal the device or have their legs moved by the pedaling device. Disclosed in an aspect thereof is an improved ankle strap sandal for use in such therapy. A lift enables the pedaling device to be vertically positioned relative to the wheelchair user when atop the support stand.

A mouse's path training model and its intelligent behavior detection system are disclosed. A circular dark box type labyrinth is used as the behavior data acquiring unit. The mouse to be tested passes through a tubular channel with adjustable one-way gates along a pointed path and closed loop for performing the cyclic training. The signals about the active movement and passive movement caused by electric shock are acquired and processed by the data processing control unit. Said signals are transmitted via PCI bus to the Access database in control system, and then processed by the statistical software package, so controlling and monitoring the behavior of mouse at any time.

The invention provides a tail-suspended rat fixing device which comprises a tail suspension device, a rat fixing box for storing the head and body of a rat, a body fixing device for fixing the body of a rat, an angle control device for controlling the included angle between the rat fixing box and a pedestal of the tail-suspended rat fixing device. The invention also provides a tail-suspended rat active/passive motion training device which comprises a rat hind limb motion device for training active/passive motion of the hind limb of a rat and further comprises a motion orbit control device for limiting the motion range of the hind limb of a rat, an active motion training device for training the active motion of the hind limb of a rat, and a passive motion training device for training the passive motion of the hind limb of a rat. The invention realizes the motion training and simultaneously keeps the tail suspension angle unchanged, that is, keeps the rat in a simulated weightlessness state.

A physical therapy chair having a first support element defining a seating surface, a second support element defining a backrest, wherein the second support element is pivotable with respect to the first support element and rotatable with respect to the first support element. The chair further including an arm support element coupled to the second support element, as well as a first motion actuator coupled to the second support element to rotate the second support element with respect to the first support element, and a second motion actuator coupled to the second support to pivot the second support element with respect to the first support element. The chair also includes a first controller that allows a user to modify an operational characteristic of the first motion actuator and a second controller that allows a user to modify an operational characteristic of the second motion actuator.

An access control device including an electromagnetic lock module for selectively locking and unlocking a door in a door frame is provided. The access control device provides a lower profiled electromagnetic lock module to improve the aesthetics and functionality of the module, supports and integrates modern accessories such as CCTV, CCD cameras, passive motion detection with automatic background correction, digital notification display, automatic source voltage selection, door and lock status indicators, and ease of installation. The present invention further provides components and circuitry to enable connection of the electromagnetic control module to 12 or 24 volts DC or to an unfiltered rectified AC power supply.

A passive motion-type exercise assistance device in which a left foot support table (2a) and right foot support table (2b), on which left and right feet of the user are respectively placed, are provided on the upper surface of a housing (1) installed on a floor. The left and right foot support tables (2a, 2b) are associated with each other by a drive device (3) and positionally moved. As the drive device (3) changes the positions in the front-rear direction of the left and right foot support tables (2a, 2b), it reciprocates the support tables (2a, 2b) so that their positions in the left-right direction are changed and, also, it moves the support tables (2a, 2b) so that the distance between them in the left-right direction at the front end positions in the movement loci (La, Lb) of representative points of the support tables (2a, 2b) is greater than the distance in the left-right direction of the points at their rear end positions.

The invention relates to an ultra-large bearing omnidirectional carrying posture adjusting platform. The platform comprises an omnidirectional moving posture adjusting unit, an X-direction driving electric bar, a vehicle body frame, a storage battery and a control unit, wherein the omnidirectional moving posture adjusting unit comprises a moving frame, a left-hand Mecanum wheel set, a right-hand Mecanum wheel set, a driving unit and a moving structure; and the movements of the omnidirectional moving posture adjusting unit include the movements in the X and Y directions and rotation of Z-axis based on Mecanum wheels and the movements in the X, Y and Z directions and rotation of the X and Y axes based on a guide rail and a screw rod, and have eight degrees of freedom, wherein the omnidirectional movement and rotation based on the Mecanum wheels, and the movements of the X, Y and Z axes are driving movements, and the rotation of the X and Y axes is a driven movement. According to the platform, large-bearing omnidirectional motions and posture adjustment are integrated, the switching among a transfer mode, a large-range low-precision posture adjustment mode and a small-range high-precision posture adjustment mode is achieved, and the application range of a six-degree-of-freedom posture adjustment platform is effectively expanded.

A motion compensation system is provided for controlling relative movements between a floating vessel and an elongate element, where the elongate element is suspended by the vessel at a first end and extends into a body of water below the floating vessel. An active motion compensator is connected to the elongate element first end via an element arranged in an upper region of an erect support structure and a passive motion compensator is connected to the elongate element first end via the element. The motion compensators are structurally and operationally separate and independent units and are configured for separate and mutually independent operation.

A vehicle nonlinear dynamics simulation device, such as flight simulator, including a motorized spherical vehicle suspended inside another spherical shell which has smooth inner surface. The spherical vehicle is supported by a plurality of spiky legs of either air-bearing assemblies or omni-directional ball bearing assemblies. The outer spherical shell is supported by three controllable translational motion platforms. Simulating equipment for a pilot cabin is mounted inside the spherical vehicle. The spherical vehicle has driving, restoring, and damping capabilities in roll, pitch, and yaw directions and is capable to rotate 360° in any directions. Therefore it provides a dynamically equivalent model to simulate a vehicle rotational dynamics. The driving and restoring means include Omni wheel assemblies mounted outside of the spherical vehicle and operable to contact the inner surface of the shell to drive the spherical vehicle in roll, pitch, and yaw directions. The driving means include electrical motors. The restoring and damping mechanisms are provided by rotational springs and rotational dampers, respectively. The rotational movements of the spherical vehicle are active and controlled by the driving system and also by the nonlinear dynamics of the spherical vehicle itself, in contrast to the passive movements of the simulation platforms currently used in industries.

A method for automatically orienting passive motion detection sensors in a given area, the method including capturing an image of at least a first portion of the given area, and responsive to capturing of an image of the first portion of the given area, superimposing, onto the image, a multiplicity of virtual passive sensor sensitivity beams virtually originating from at least one passive motion detection sensor, the at least one passive motion detection sensor being operable for passively detecting motion in at least a second portion of the given area, the sensitivity beams demarcating the second portion of the given area, thereby enabling ascertaining a measure of overlap between the first and second portions of the given area.

An improved motion detector that includes a passive motion sensor with "test," "sensitivity" and "timer" adjustable functions, mounted inside an outer housing with two water-resistant touch-operated membrane switches used to control these settings. Also mounted on the sides of the outer housing and connected to the motion sensor are at least two bright LED lights designed to illuminate in one of three possible colors to visually indicate the current "test", "sensitivity" or "timer" setting of the motion detector.

The invention relates to a muscle disease assessment method and system and an electronic device. The muscle disease assessment method includes the steps: a driving passive motion of a subject by external driving, and acquiring a motion angle of the subject; b acquiring dynamic change of detected skeletal muscle without the motion angle by the aid of an ultrasonic shear wave elasticity imaging technique, and extracting elasticity measurement data of the dynamic change; c extracting a corresponding relationship between elasticity modulus of the detected skeletal muscle and a joint angle from theelasticity measurement data, and taking the corresponding relationship between the elasticity modulus and the joint angle as characteristics to make a data set; d building a probabilistic neural network model, inputting the data set into a probabilistic neural network to perform training, and outputting a muscle disease of the subject and categories of the muscle disease by the probabilistic neural network. According to the method, by the aid of the artificial intelligence neural network, classification results are more reliable, generalization ability is better, and a new method is providedfor assessment of muscle diseases.

The invention relates to an RSS (Root Sum Square)-based passive motion tracking method suitable for sparse node distribution. The RSS-based passive motion tracking method is characterized by comprising the steps of: (1) setting N particles with random positions; (2) respectively working out a long-term measured value and a short-term measured value of RSS of each link when a target is located at the position of each particle according to a long-term measured value mode land a short-term measured value model for each particle; (3) comparing two RSS values of each particle with the actually measured RSS values, processing the two RSS values of each particle to obtain the weight corresponding to the particle at each position; (4) resampling the weight corresponding to the particle at each position; (5) calculating an estimation result of a target position; (6) updating the position of each particle according to an autoregression Gaussian model; and (7) returning to (2) and repeat the execution until a tracking process is finished. The method disclosed by the invention is reasonable in design, has the advantages of enlarging a perception range of each link in a sensor network and guaranteeing the tracking accuracy on a wireless sensor network with sparse node distribution, and has a favorable performance in sparse node networks under different environments.