69results about How to "Large transmission distance" patented technology

A method for beam guiding of a light beam generated by a light source to a target location along a path distance LS, comprises splitting the light beam on the path distance LS at least once into a first partial beam and a second partial beam, guiding the first partial beam additionally at least once along a delay line, the first partial beam thereby covering an additional path distance LD, guiding the second partial beam only along the path distance LS, combining the first and second partial beams after the first partial beam having passed through the delay line and guiding the combined beam to the target location, wherein the light beam is guided along the path distance LS and LD in such a way that the light beam generated by the light source has a predetermined beam width B at the target location, expanding the light beam between the light source and the target location at least once to a beam width B′>B and comprising the light beam again at least once in such a way that the light beam has the predetermined beam width B at the target location.

In a method for transferring crop material from a harvesting machine to a hauling vehicle, with which the crop material is accelerated and ejected through a conveyor chute of a transfer device to a target point on the transport vehicle, the acceleration of the crop material to be transferred is controlled as a function of at least one parameter that represents a transfer distance. A corresponding control unit for a harvesting machine and a harvesting machine with a control unit of this type is also provided.

The invention discloses an electric operation mechanism of a grounding switch of an intermediate and low voltage switch cabinet and aims at solving the problem that the electric operation, the transmission and the positioning of the grounding switch of the existing high voltage switch cabinet are inaccurate. The electric operation mechanism comprises a motor and an operation large shaft; a mechanism box is arranged on the operation large shaft; the motor, a transmission gear, a clutch gear and a motor output gear are arranged in the mechanism box, a moving gear is arranged on the operation large shaft, the moving gear is meshed with the clutch gear, the clutch gear is coaxial with the transmission gear, and the transmission gear is connected with the motor by the motor output gear. The electric operation mechanism has the advantages of small mechanism size, few transmission links, small energy loss, great transmission force moment, smooth transmission and the like, and the electric operation mechanism simultaneously improves the accuracy of the control on the transmission and the positioning, and also has the manual and the electric clutch functions.

The invention discloses a wireless energy transmission device based on self-resonant electromagnetic induction coupling. The device mainly solves the problem of low energy transmission efficiency at a farther distance of the conventional electromagnetic induction coupling type wireless energy transmission device. The wireless energy transmission device based on the self-resonant electromagnetic induction coupling comprises an exciting part (1), a resonance part (2) and a load part (3), wherein the exciting part (1) is externally connected with a high-frequency oscillation circuit; the load part (3) is externally connected with a load circuit; the resonance part (2) adopts a single tubular spiral coil or a single planar asymptotic spiral coil and is positioned between the exciting part (1) and the load part (3); the exciting part (1) generates a high-frequency magnetic field to pass through the resonance part (2) and excites the resonance part (2) to generate resonance; and resonance energy is transmitted to the load part (3) to generate an induction electromotive force to transmit electric energy for external connection of the load circuit. The wireless energy transmission device based on the self-resonant electromagnetic induction coupling has the advantages of high efficiency, simple structure and low radiation and can be applied to wireless charging and power supplying of various kinds of electronic equipment.

The invention discloses an embroidery machine and belongs to the technical field of embroidery. The embroidery machine comprises an embroidery machine head, a shuttle box, a thread buckling device anda thread trimming device, wherein a rotating shuttle is arranged in the shuttle box; the thread buckling device comprises thread buckling parts which are movably arranged on the shuttle box and are used for buckling the rotating shuttle; the thread trimming device comprises a fixed cutter and moving cutters moving relatively to the fixed cutter. The embroidery machine is characterized in that thethread buckling device also comprises a driving rotation shaft rotatably arranged on the shuttle box; at least two thread buckling parts are connected with the driving rotation shaft simultaneously;the thread trimming device comprises a main driving connection rod and branched connection rods; at least two branched connection rods are arranged on the main driving connection rod simultaneously; each branched connection rod drives the moving cutters to move respectively; the driving rotation shaft is driven by a first driver and drives at least two thread buckling parts to work; the main driving connection rod is driven by a second driver and drives at least two moving cutters to move. The embroidery machine disclosed by the invention has the advantages that the structures of the thread buckling device and the thread trimming device are simplified, and the requirements of the installation space are reduced.

The invention discloses a link-type multi-leg robot which, based on bionic features of quadruped mammals, comprises four sets of foot modules and three-segment frame modules distributed symmetrically on two sides of a frame. The link-type multi-leg robot is characterized in that each foot unit employs a multi-link mechanism having a prismatic pair, and a hip joint, a thigh joint and a knee joint in each foot unit are driven in a transmission manner where an alternating-current permanent magnet synchronous motor and a harmonic reducer are connected; the modular foot design concept may allow foots and the frame to be quickly detached and attached to arrive at different configurations, and accordingly one robot may come with multiple models. The multi-link scaling foot structure used herein allows ratios of force and movement of thigh joints and shank joints to be amplified, and the requirement on motor output torque is lowered. The leg link structure has both high rigidity and bearing capacity. The legs can tolerate driving errors, the rigidity and stability of the whole structure are improved, and the robot is imparted better ability to adapt to complex terrains.

The invention discloses a Bluetooth based wireless smart home lighting control system. The system includes a smart lighting device, a wireless control device and a mobile terminal APP software capableof controlling and configuring the lighting control system. The smart lighting device includes a drive power module, a Bluetooth core control module and an LED lighting module. Through receiving theAPP and wireless control device control commands, a plurality of lighting application functions are realized. The wireless control device is a remote controller supplied with power by an external battery and a wireless panel switch and is used for integral control and grouping and zone control of the lighting control system. According to the invention, the self-networking of lamps and a control terminal is high in speed, routing distribution and path calculation are saved, and a network is formed automatically after electrification. No network gate device is required and networking does not depend on a single device. The stability is good and the mounting and operation are simple. According to the invention, free pairing network is adopted and control modes are combined freely, lighting scene modes are customized freely and the lighting application scenes are wide.

The invention relates to the design of an LED indoor desk lamp based on wireless electric energy transmission technology. The LED indoor desk lamp mainly comprises a radio frequency power amplifier circuit, an impedance matching circuit, a transmitting coil, a receiving coil, a rectifying and voltage regulating circuit and so on. The system belongs to the frontier field of engineering application of high frequency electromagnetic theory, and solves the problem of the application of wireless electric energy transmission in the LED indoor desk lamp. The invention overcomes the constraint of conventional wires to the LED lamp, and designs a green lighting device with flexibility in moving, safety, reliability and no pollution to overcome the inconvenience and potential risk caused by complicated wires in room. The green and energy-saving LED indoor desk lamp based on wireless electric energy transmission technology is low in cost, wireless, convenient in carrying and so on, and has a great application prospect in future indoor lighting.

Data encoded in packets modulated onto a carrier wave is transmitted between a base station and a transponder. Each packet includes a header section that contains at least a reference symbol and that serves for adjusting one or more transmission parameters, and a further section such as a data section. The transponder transmits data back to the base station through modulation and backscattering of the carrier wave. During the transmission of the header section by the base station, the transponder transmits transponder operating information relating to the processing of data to be received and / or transmitted by the transponder, by corresponding modulation and backscattering of the carrier wave. In response to and dependent on the received transponder operating information, the base station adjusts at least one transmission parameter, whereby the highest data transmission rate within the capabilities of the particular transponder can be achieved.

A wireless power charging system includes an intermediate relay coil. In one aspect, a wireless power charging system is designed to charge a separate device having a receiver that includes a receiver coil. The separate device conforms to a specification for the wireless power charging system, which may be a public standard for wireless power charging systems. The wireless power charging system includes a transmitter and a relay coil resonator. The transmitter includes a driver coil that is driven by a power source. The relay coil resonator includes a relay coil that is used to inductively couple power from the driver coil to the receiver coil. The wireless power charging system is designed so that it satisfies Eqn. (11) above.

The invention provides a downhole-to-ground logging communication and control device. The device has the advantages of being high in detection sensitivity, wide in working temperature range, low in working energy consumption, small in occupied size, large in channel width, high in transmission rate and low in price, and has obvious advantages in the aspect of wireless transmission of downhole-to-ground data communication. The device comprises a ground part and an underground part; the ground part is provided with an atomic magnetometer receiving device and quantum detection equipment for reading out quantum data; the underground part comprises an electromagnetic wave emission system; and the electromagnetic wave emission system is used for encoding signals detected underground and emitting the signals through electromagnetic waves.

The invention discloses a link-type multi-leg robot which, based on bionic features of quadruped mammals, comprises four sets of foot modules and three-segment frame modules distributed symmetrically on two sides of a frame. The link-type multi-leg robot is characterized in that each foot unit employs a multi-link mechanism having a prismatic pair, and a hip joint, a thigh joint and a knee joint in each foot unit are driven in a transmission manner where an alternating-current permanent magnet synchronous motor and a harmonic reducer are connected; the modular foot design concept may allow foots and the frame to be quickly detached and attached to arrive at different configurations, and accordingly one robot may come with multiple models. The multi-link scaling foot structure used herein allows ratios of force and movement of thigh joints and shank joints to be amplified, and the requirement on motor output torque is lowered. The leg link structure has both high rigidity and bearing capacity. The legs can tolerate driving errors, the rigidity and stability of the whole structure are improved, and the robot is imparted better ability to adapt to complex terrains.