Abstract: A rigid-flexible coupling motion platform driven by a ball screw includes a base, a linear guide rail fixed to the base, a rigid-flexible coupling platform, a servo motor, a ball screw, a guide rail sliding block, a displacement sensor and a driving controller. The rigid-flexible coupling platform includes a frame and a workbench. The frame and the workbench are connected through a flexible hinge; the servo motor is configured to drive the ball screw; the workbench is connected with the ball screw; the frame is connected with the linear guide rail by the guide rail sliding block; the displacement sensor is configured to feed back the position of the workbench; and the driving controller controls the ball screw to drive the workbench to move according to different control modes. The advantages of the ball screw drive and the rigid-flexible coupling motion platform are fully combined, and the positioning precision of the platform is greatly improved.

Abstract: The present invention discloses a single-drive rigid-flexible coupling precision motion platform, including a machine base, a linear guide rail, a rigid-flexible coupling motion platform, a linear driver and a displacement sensor, wherein the rigid-flexible coupling motion platform includes a rigid frame, flexible hinges and a core motion platform; and the core motion platform of the rigid-flexible coupling motion platform is connected with the rigid frame through the flexible hinges. In this arrangement, the single-drive rigid-flexible coupling precision motion platform disclosed by the present invention can realize high-accuracy continuous change displacements of the platform, thereby avoiding displacement “jitter” caused by sudden change of acceleration. The present invention further discloses a realization method and an application including the above platform.

Abstract: A control method for converting time-varying system into a time-invariant system, comprises: using (n?1)th to 0th order signals of an nth-order time-varying, system as feedback to set up a closed loop control for the time-varying system; acquiring real-time values of the coefficients in each order of the time-varying system through a sensor, and calculating variations between the real-time values and the initial values of the coefficients in each order through a controller; amplifying and summing the parameters of every order to obtain a measured disturbance; inputting the measured disturbance, a control signal from a controller and an nth-order signal into an extended state observer through to estimate the rest disturbance; summing up the measured and estimated disturbances to obtain total disturbances; and adjusting the above parameters in each order through the controller to convert the time-varying system into the tune-invariant system.

Abstract: The present invention also discloses a multi-DOF (Degree of Freedom) large-stroke high-precision motion platform system using the guide mechanism. A large load-bearing guide mechanism comprises: a rigid frame for generating a large-stroke displacement to realize high-speed motion; a core motion platform connected with a motion portion of a non-contact actuator, connected with the rigid frame by a primary flexible hinge group and a secondary flexible hinge group, and used for generating a small-stroke precise displacement by elastic deformation of the flexible hinge groups under driving of the actuator.

Abstract: A self-balancing scooter includes a scooter body including an integrated main framework with two opposite ends and wheels mounted to the two ends of the main framework respectively, a driving mechanism mounted on the main framework, a foot pedal mounted on the driving mechanism, and a connecting shaft with a first end and a second end opposite to the first end. The first end of the connecting shaft is fixedly connected to the main framework, and the second end of the connecting shaft is connected to the driving mechanism such that the driving mechanism and the foot pedal are pivotable relative to the main framework. The driving mechanism drives the wheels to rotate. The disclosure increases the load carrying capacity of the self-balancing scooter, avoids too tight or too loose connection between the connecting shaft and the main frameworks, and prolongs the service life of the self-balancing scooter.

Abstract: The present invention provides a mechanical and control integration design method, comprising: first building an initial model of a controlled object, and regarding the estimation of an undetermined part as a disturbance; performing parametric design to the determined part of the controlled object model to obtain a parameterized model; further truncating and simplifying the controlled object model according to dynamic response characteristics of the object model and the control target requirements to obtain an approximate model as a prediction model; measuring a system state, building a control performance judgment criterion, and calculating the difference with the calculation result of the prediction model to obtain the total disturbance of the system; designing a total disturbance eliminating link according to the order of the prediction model, and constructing and completing an auto-disturbance rejection controller.

Abstract: A pedal connecting mechanism comprises a left pedal, a right pedal and a transverse connecting member, wherein a first cylindrical shaft is provided along the bottom of the left pedal; a first supporting member is provided on the left side of a top wall of the transverse connecting member, and a first groove is provided on the first supporting member; the first cylindrical shaft is provided inside the first groove so that the left pedal is rotatably connected to the first supporting member; a second cylindrical shaft is provided along the bottom of the right pedal; a second supporting member is provided on the right side of the top wall of the transverse connecting member, and a second groove is provided on the second supporting member; and the second cylindrical shaft is provided inside the second groove so that the right pedal is rotatably connected to the second supporting member.

Abstract: A room air purifier comprises housing (9), air filter (100), RFID reader (143), RFID tag (120), and a wireless communication unit (142). A method is how to operating the room air purifier.

Abstract: The present invention also discloses a multi-DOF (Degree of Freedom) large-stroke high-precision motion platform system using the guide mechanism. A large load-bearing guide mechanism comprises: a rigid frame for generating a large-stroke displacement to realize high-speed motion; a core motion platform connected with a motion portion of a non-contact actuator, connected with the rigid frame by a primary flexible hinge group and a secondary flexible hinge group, and used for generating a small-stroke precise displacement by elastic deformation of the flexible hinge groups under driving of the actuator.

Abstract: The present disclosure involves occasions where precise two-dimensional motion takes place, and is applicable to XY motion stages for precise displacement compensation. The present disclosure particularly involves a stiffness-frequency adjustable XY micromotion stage based on stress stiffening, which includes X-direction and Y-direction motion sub-stages and corresponding drivers and a micromotion working table. The micromotion stage uses membrane sets that have tension levels thereof adjusted by bolts as a flexible hinge, so as to achieve independent adjustment of the vibration frequency of the XY micromotion stage. The present disclosure implements the foregoing configuration based on prestressed membrane, so the frequency is adjustable. The inherent frequency of the micromotion stage can be adjusted before or during operation according to various working conditions and driving frequency.

Abstract: A common-stator macro/micro integrated precision motion one-dimensional linear motor assembly, includes a base, linear guide rails, slide blocks, a U-shaped linear motor stator, a macro motion rotor, a micro motion rotor and a macro/micro integrated platform. A macro and micro motion platforms are connected to form an integrated platform through an elastic member, an outer frame of the macro/micro integrated platform is mounted on the linear guide rails and the slide blocks, the U-shaped linear motor stator is arranged on the base, rotors are respectively mounted on the macro and micro motion platforms, and large-scale overall high-speed motion can be realized when macro and micro rotors are simultaneously driven, and when a motion deviation occurs, the micro motion platform realizes precise displacement output by virtue of elastic deformation due to small inertia and zero friction, and high-frequency motion deviation compensation can be realized by virtue of individual drive.

Abstract: The present invention proposes a macro-micro integrated compound platform with adjustable dynamic characteristics. When a macro platform mover and a micro platform mover are driven at the same time, the whole large-scale high-speed motion can be realized; when a motion deviation occurs, a micro motion platform can be driven separately to realize the high-frequency motion deviation compensation, because the micro motion platform has small inertia and zero friction and achieves precision displacement output through elastic deformation.

Abstract: The present invention has the advantages of simple structure, low detection cost, high measurement precision, high detection speed, strong practicability, etc. The present invention relates to a novel array photoelectric sensor grating displacement detection system and method. The system includes a parallel light source, an incremental glass grating ruler, photoelectric sensor arrays, a high-speed voltage comparator, a signal processing unit and a displacement display unit, wherein the incremental glass grating ruler is perpendicular to an irradiation direction, of the parallel light source.

Abstract: A patch cord, a management system and a management method thereof are provided. The patch cord (10) comprises a connection line portion (11), a first connector (21) arranged at a first end of the connection line portion (11), a second connector (22) arranged at a second end of the connection line portion (11), a first communication unit (31) arranged at near the first connector (21) including a first identifier and a second communication unit (32) arranged near the second connector (22) including a second identifier, wherein the first and second identifiers contain unique identify information for identifying the first connector and the second connector, respectively, and wherein the first identifier is different from the second identifier. The management system and the management method can differentiate connectors at the both ends of the patch cord by self-identification.

Abstract: An upgradeable distribution framework, cable connector and cabling management system is described. The distribution framework has a plurality of ports adapted to be connected by cable connectors and indicator elements arranged on the distribution framework wherein corresponding to at least a portion of the ports. A plurality of first communication units are detachably secured to the cable connectors and such that the first communication units are positioned outside the ports when the cable connectors are inserted into the ports. The distribution framework further includes a plurality of second communication units that correspond to at least a portion of the ports. The second communication units and the corresponding first communication units are configured to communicate with each other in a non-contact manner. A control modules is configured to control and read and write communications between at least a portion of the first communication units and the second communication units.

Abstract: A pressurized decanting device decants wine, so that oxidation is prevented by not agitating the wine as it decants, or agitating solid matter resting on the bottom of bottle. The decanting device couples to the mouth of bottle through a cork having a cork borehole. A pump forces pressurized gas into the bottle of wine. The consequential pressure forces the wine out of the bottle through a discharge pipe in the housing. The device includes a base mounted with a housing. The housing includes an outlet apparatus, a pump, a power supply mechanism, and a switch mechanism operatively connected to the pump and the power supply mechanism. An outlet pipe and a gas guiding apparatus extend from the outlet apparatus. The switch mechanism mounts on the outlet apparatus through power supply mechanism The outlet apparatus controls a liquid and a gas to discharge or stop discharging from outlet pipe.

Abstract: The present disclosure provides a balancing vehicle. The balancing vehicle comprises a baseplate, a pedal assembly, a detecting module, a wheel assembly, and a control system. The pedal assembly is disposed above and pivotally connected to the baseplate. The detecting module is disposed between the baseplate and the pedal assembly to detect a motion of the pedal assembly relative to the baseplate. The wheel assembly is rotatably coupled to the baseplate. The control system is attached to the baseplate and electronically connected to the detecting module and mechanically coupled to the wheel assembly so as to control the wheel assembly based on the motion of the pedal assembly detected by the detecting module.

Abstract: The present invention provides a slow and controlled released liposomal gel composition for subcutaneous administration comprises insulin or exenatide as active ingredient for reduction of blood sugar level and method of preparation thereof. Said controlled released composition has high bioavailability and is demonstrated to be able to sustain release therapeutically effective concentration of drug over a period of time and without rapid release of drug after initial administration. Method of preparing the controlled released composition of the present invention comprises the following steps: mixing insulin or exenatide, lipid and aqueous dispersion medium together; then mixing with poloxamer (e.g. F127 or P123) and/or gelatin and hyaluronic acid (HA) or the like gel solution so as to form a protective layer on surface of every lipid micro vesicles or nano-vesicles for use in intramuscular, abdominal and subcutaneous administration.