Abstract: A fully-automatic aluminum thermal-spraying corrosion prevention production line based on robots and visual recognition is provided. The production line comprises an automatic feeding system comprising feeding carrying and conveying mechanisms; a laser derusting system comprising a derusting robot, a laser cleaning nozzle and derusting conveying mechanisms; an aluminum thermal-spraying system comprising an aluminum spraying robot and an aluminum thermal-spraying gun; an automatic rolling system comprising a rolling pedestal, a first rolling wheel, a second rolling wheel and a rolling drive mechanism; a laser cutting system; and a discharging and stacking system.

Abstract: The present disclosure discloses a self-adaptive mechanical foot for the legged robot. The mechanical foot has a piston disposed inside a piston cylinder. The piston is connected to one end of each humeral plate, and the piston cylinder is connected to the other end of each humeral plate. The humeral plates perform opening and closing movement through the up-down movement of the piston in the piston cylinder. The humeral plates are connected to toes on the foot and drive the toes to open and close through the up-down movement. The mechanical foot provided by the present disclosure has higher standing stability and fast interaction response speed when interacting with the terrain. It can realize arbitrary and fast switching between a point-like foot and a planar foot, and meanwhile avoids collision between a support leg and a swing leg.

Abstract: In the field of Rogowski coils for the measurement of current within a conductor there is provided an electrical interface for connection to a Rogowski coil arranged around a primary conductor. The electrical interface includes an input that is configured to sample an input voltage signal from the Rogowski coil. The electrical interface also has an integrator circuit which includes an integrator module that is configured to integrate the sampled input voltage signal to provide an output voltage signal from which can be derived a primary current flowing through the primary conductor. The integrator module employs a transfer function that includes an attenuation factor.

Abstract: An apparatus for determining a measure of the frequency of an electrical signal is provided. The apparatus is configured to, based on a plurality of samples of the electrical signal, determine a Hilbert transformation to obtain a value for each of the samples of the electrical signal for use as an imaginary representation of each of the samples of the electrical signal and combine each said imaginary representation with a corresponding real representation of the samples of the electrical signal to form a complex representation of the electrical signal; perform a Fourier transform on each said complex representation of the samples of the electrical signal and determine a phase angle therefrom; and determine a measure of the frequency of the electrical signal based on a derivative of the phase angle with respect to time.

Abstract: In the field of Rogowski coils for the measurement of current within a conductor there is provided an electrical interface for connection to a Rogowski coil arranged around a primary conductor. The electrical interface includes an input that is configured to sample an input voltage signal from the Rogowski coil. The electrical interface also has an integrator circuit which includes an integrator module that is configured to integrate the sampled input voltage signal to provide an output voltage signal from which can be derived a primary current flowing through the primary conductor. The integrator module employs a transfer function that includes an attenuation factor.

Abstract: An apparatus for determining a measure of the frequency of an electrical signal is provided. The apparatus is configured to, based on a plurality of samples of the electrical signal, determine a Hilbert transformation to obtain a value for each of the samples of the electrical signal for use as an imaginary representation of each of the samples of the electrical signal and combine each said imaginary representation with a corresponding real representation of the samples of the electrical signal to form a complex representation of the electrical signal; perform a Fourier transform on each said complex representation of the samples of the electrical signal and determine a phase angle therefrom; and determine a measure of the frequency of the electrical signal based on a derivative of the phase angle with respect to time.

Abstract: A method of identifying a rotation gesture comprises detecting one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface, determining the number of pointing objects, detecting movement statuses of the detected pointing objects, determining a rotation gesture performed by the pointing objects based on the movement statuses, generating a control signal associated with the determined rotation gesture and executing the rotation gesture in response to the generated control signal.

Abstract: A method of identifying a rotation gesture comprises detecting one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface, determining the number of pointing objects, detecting movement statuses of the detected pointing objects, determining a rotation gesture performed by the pointing objects based on the movement statuses, generating a control signal associated with the determined rotation gesture and executing the rotation gesture in response to the generated control signal.