30results about How to "Realize time-sharing control" patented technology

The invention belongs to the field of lower limb assisting exoskeletons, and discloses a hip joint passive exoskeleton device based on energy time-sharing regulation. The hip joint passive exoskeletondevice comprises a waist arc-shaped support assembly, hip joint assemblies, thigh assemblies and elastic component connecting assemblies, wherein the waist arc-shaped support assembly comprises surrounding support devices and flexible bandages; each hip joint assembly comprises a hip joint inwards folding and outward unfolding connector and a hip joint bending and stretching connector; each thighassembly comprises a thigh outer-side connecting rod, a thigh front hoop and a thigh rear hoop; each elastic component connecting assembly comprises an L-shaped cantilever, an force arm, a digging rope clutch, an extension spring and a flexible rope. For the hip joint passive exoskeleton device based on energy time-sharing regulation provided by the invention, through the digging rope clutches triggered along with the joint angle, the extension springs stretch for storing the mechanical energy of the human body when the human hip joint does negative work and contract for releasing the energywhen the human hip joint does positive work, so that the time-sharing regulation on the mechanical energy of the human body is realized finally, the movement of the hip joint is assisted, the metabolic energy consumption generated during walk is reduced, in addition, the hip joint passive exoskeleton device has the advantages that the structure is simple, the cost is low, the weight is small, andthe wearing is comfortable.

The invention discloses a dual-three-phase motor five-phase inverter and a control method thereof. The speed error is obtained after adjusting the actual speed and the given speed of the two motors; and then the speed error of the two three-phase motors is passed through the The controller obtains the given current of the two three-phase motors, passes the obtained given current through the reference current generator to obtain the reference current of the two three-phase motors, passes the reference current and the actual current through the current regulation module to obtain the current error, and The current errors in the phase windings connected to each independent bridge arm are respectively sent to the hysteresis controller. The signal generated by the hysteresis controller passes through the PWM generation unit, and the PWM generation unit is used to realize the control of two three-phase motors. The synchronous drive of two motors at the same speed can also realize the synchronous drive of two motors at different speeds. The invention is applicable to many different types of three-phase AC motors. It has the advantages of simple algorithm, fast response and high precision, and is simple to implement. Wide range of applications.

The invention discloses an interactive electronic whiteboard for remote control transmission and reception of a specified number, which includes a remote control and an electronic whiteboard body; the remote control includes several keys and a remote control code sending unit; the electronic whiteboard body includes a remote control code receiving unit The button is connected with the remote control code sending unit to set and send the first client code; the remote control code sending unit is connected with the remote control code receiving unit to send the remote control signal including the first client code; The remote control code receiving unit judges whether the second client code set on the electronic whiteboard is paired with the first client code, and if paired, accepts the control of the remote controller; if not, does not accept the control of the remote controller. In the present invention, by setting the configured customer codes on the remote controller and the electronic whiteboard, in the scenario where multiple interactive electronic whiteboards of the same model are placed, one of the electronic whiteboards can be independently controlled without affecting other electronic whiteboards.

The invention relates to a combined microwave and electric heating coffee roasting device, which belongs to the field of agricultural product processing. The invention includes a microwave device, a monitoring device, a transmission device, an electric heating device, and a control device; the microwave device is used to generate microwaves for microwave heating of materials; the monitoring device includes a temperature and humidity sensor, an infrared temperature measuring sensor, and a temperature sensor; For monitoring the temperature and humidity of the exhaust air, the infrared temperature sensor is used to monitor the temperature of the material surface, and the temperature sensor is used to monitor the temperature of the electric heating tube; the control device is used to monitor the temperature and humidity information of the exhaust air and the temperature of the material surface. The temperature information and the temperature of the electric heating tube are used to control the microwave device, the transmission device and the electric heating device. The present invention proposes to roast green coffee beans by microwave heating, which does not require a preheating process, improves the quality of roasted coffee, shortens roasting time, improves roasting efficiency, reduces production costs, and is energy-saving and environmentally friendly.