Abstract: In a six-degree-of-freedom precision positioning system, magnetic force and fluid buoyancy are used to levitate a platform, and the non-contact magnetic force between electromagnets and magnets forms a main driving force for the platform. Therefore, no friction is present in the system and no lubricating mechanism is needed for the system. Moreover, in the system, electric current is converted by electromagnets and magnets into a magnetic driving force without using any transmission gears. Therefore, the backlash phenomenon that is not easily controllable in the conventional servo positioning systems is avoided. The system has simplified structure without the need of complicated fabrication, and utilizes the properties of fluid to achieve low power consumption, high precision positioning, and fast response.

Abstract: Methods and systems for tracking users and providing services are provided. The system comprises a plurality of pressure sensors, a storage unit, at least one service providing unit having a service, and a signal processing unit. The pressure sensors detect pressure applied thereon at a specific time point, and correspondingly generate sensed signals. The signal processing unit receives the sensed signals from the pressure sensors, and stores the sensed signals to the storage unit. The signal processing unit calculates a current state of an object according to the sensed signals and historical sensed signals and historical states of the object in the storage unit, and determines one of the at least one service providing unit according to the current state to activate service thereof.

Abstract: A locating and tracking system is provided. The locating and tracking system includes plural pressure sensing modules, each of which includes at least one pressure sensing unit detecting a pressure source and generating a signal; a data processing unit connected with the at least one pressure sensing unit, and processing the signal to generate a module information; a storage unit connected with the data processing unit, and storing the module information and an user information; a communication unit connected with the data processing unit, transmitting the module information, and receiving an outer information; and a power managing unit managing a power needed by the at least one pressure sensing unit, the data processing unit, the storage unit and the communication unit; a bottom board configured on a floor, and bearing the mentioned units; and a top board covering the mentioned units, and transferring the pressure source to the pressure sensing unit.

Abstract: A rehabilitation and training apparatus is built based on the empirical law by introducing physical therapists' experiences into the apparatus to simulate the therapy with hands in the course of rehabilitation. The apparatus includes a multi-axis robotic arm, and a high-precision control system. The control system provides three operating modes, including an active, a passive, and an auxiliary mode; receives and computes information about a patient's movements and produced force detected by potentiometers and force sensors provided in the multi-axis robotic arm; and accordingly, drives actuators to apply an aiding force or a resisting force to assist the patient in completing and repeating rehabilitation exercises. The apparatus also includes a humanized operating interface, via which a doctor or a physical therapist may obtain related rehabilitation data for assessment and adjustment of rehabilitation therapeutic courses. A method of controlling the apparatus is also provided.

Abstract: The present invention provides a visual tracking system and its method comprising: a sensor unit, for capturing monitored scenes continuously; an image processor unit, for detecting when a target enters into a monitored scene, and extracting its characteristics to establish at least one model, and calculating the matching scores of the models; a hybrid tracking algorithm unit, for combining the matching scores to produce optimal matching results; a visual probability data association filter, for receiving the optimal matching results to eliminate the interference and output a tracking signal; an active moving platform, for driving the platform according to the tracking signal to situate the target at the center of the image. Therefore, the visual tracking system of the present invention can help a security camera system to record the target in details and maximize the visual information of the intruding target.

Abstract: In a six-degree-of-freedom precision positioning system, magnetic force and fluid buoyancy are used to levitate a platform, and the non-contact magnetic force between electromagnets and magnets forms a main driving force for the platform. Therefore, no friction is present in the system and no lubricating mechanism is needed for the system. Moreover, in the system, electric current is converted by electromagnets and magnets into a magnetic driving force without using any transmission gears. Therefore, the backlash phenomenon that is not easily controllable in the conventional servo positioning systems is avoided. The system has simplified structure without the need of complicated fabrication, and utilizes the properties of fluid to achieve low power consumption, high precision positioning, and fast response.

Abstract: Methods and systems for tracking users and providing services are provided. The system comprises a plurality of pressure sensors, a storage unit, at least one service providing unit having a service, and a signal processing unit. The pressure sensors detect pressure applied thereon at a specific time point, and correspondingly generate sensed signals. The signal processing unit receives the sensed signals from the pressure sensors, and stores the sensed signals to the storage unit. The signal processing unit calculates a current state of an object according to the sensed signals and historical sensed signals and historical states of the object in the storage unit, and determines one of the at least one service providing unit according to the current state to activate service thereof.

Abstract: Disclosed is a novel scanning-probe type atomic force microscope wherein false deflection of the probe is reduced. The probe of the scanning-probe type atomic force microscope moves in both the horizontal direction and the vertical direction during the scanning, while the sample is kept in order to reduce the false deflection brought to the probe due to the scanning motion, two approaches are adopted. The first is to have a focused laser spot tracking an invariant point on the probe's cantilever, which moves three-dimensionally during the scanning. The second approach is to have the laser beam, which is reflected from the moving cantilever, hitting an invariant point of the PSD, when the sample is distanced from the probe and induces no deflection.

Abstract: A six-degree-of-freedom magnetic levitation positioning system includes a levitated platform, six impelling coils disposed adjacent to the platform, and six permanent magnets attached to the platform such that each of the permanent magnets is adjacent to and magnetically aligned with a respective one of the impelling coils, whereby there are six magnet-coil sets. Among the six sets, three of the sets are maglev sets in which magnetic axes of the impelling coils are generally vertically aligned, and another three of the sets are horizontal impelling sets in which magnetic axes of the impelling coils are generallv horizontally aligned. The magnetic axes of the three horizontal impelling sets are all mutually non-parallel, so that elevation and tiltings of the platform can be actuated by adjusting the currents in coils of the three maglev sets, and translations and rotations about a vertical axis of the platform can be actuated by adjusting the currents in coils of the three horizontal impelling sets.

Abstract: Disclosed is a novel scanning-probe type atomic force microscope wherein false deflection of probe is reduced. Probe of the scanning-probe type atomic force microscope moves in both the horizontal direction and the vertical direction during the scanning, while the sample is kept stationary. In order to reduce the false deflection brought to the probe due to the scanning motion, two approaches are adopted. The first is to have the focused laser spot tracking an invariant point on the probe's cantilever, which moves 3-dimensionally during the scanning. The second approach is to have the laser beam, which is reflected from the moving cantilever, hitting an invariant point of the PSD, when the sample is distanced from the probe and induces no deflection. A beam racking system wherein the scanning probe locates approximately at focus of objective lens and the optical system including a laser source, an optical module, a feedback module and the probe are driven by an approach mechanism to move in synchronization.