32results about How to "High switching accuracy" patented technology

The invention discloses a double PON ONU optical link protection switching device and protection method. The device comprises a first optical module, a second optical module, a first PON_MAC chip, a second PON_MAC chip, a complex programmable logic device CPLD, a multiplexer MUX and an exchange chip. The first optical module and the second optical module are connected with two different optical line terminals OLT to form a protection link hand in hand. According to the invention, an uplink interface RGMII of the exchange chip is in direct line connection with the PON_MAC chip interface, MDC/MDIO is in direct connection with the multiplexer, a control line is used to control the CPLD to complete a switching motion, and the problems in the prior art that the CPLD source is insufficient and the main-standby switching time is long are solved.

An automatic phase mask plate switching device used for writing a grating through a phase mask plate writing method is composed of a phase mask plate rotary switching clamp, a stepping motor, a drive circuit and a control system. By means of the automatic phase mask plate switching device, the operation of writing the fiber grating is greatly simplified, the fiber grating can be automatically written, and the quality and repeatability of grating writing can be improved.

A switch apparatus, system and method are disclosed herein, including one or more magnetic sensing elements that follow a travel path thereof, and a plurality of permanent magnets located in a mirrored configuration about the travel path. Such a configuration permits a magnetic field variation associated with the permanent magnets and the magnetic sensing element to be reduced with respect to the magnetic sensing element and the permanent magnets position tolerances, thereby generating a reduced magnetic field variation thereof which improves switching accuracy. A signal processing module can also be provided, which includes a signal conditioning circuit associated with a microprocessor.

The invention provides a fusion control device and method for 3D printing. The fusion control device comprises a main controller, a heating assembly, a heating controller and a locking control assembly. The heating controller and the locking control assembly both are connected with the main controller and operate under the control of the main controller. The heating assembly is connected with the heating controller. The heating assembly comprises a first constant-temperature heating block, a second constant-temperature heating block and a heat-resistant support. The heat-resistant support is made of a heat insulation material. The first constant-temperature heating block and the second constant-temperature heating block are correspondingly arranged on the two sides of the heat-resistant support and are matched with a nozzle on a 3D printer. The temperature working point of the first constant-temperature heating block is set as the fusion extrusion temperature, the temperature working point of the second constant-temperature heating block is set as a semi-solidification temperature for preventing fusion sagging, the first constant-temperature heating block and the second constant-temperature heating block are kept in the constant-temperature state under the control of the heating controller, and the locking control assembly controls the first constant-temperature heating block and the second constant temperature heating block to be in contact with or separated from the nozzle.

The invention is suitable for the technical field of computer vision, and provides a method and a device for realizing soft photosensitivity based on deep learning, a terminal and a storage medium, and the method for realizing soft photosensitivity based on deep learning comprises the steps: obtaining a target day and night prediction model corresponding to a current working mode of an image collection device; based on N frames of images continuously acquired by the image acquisition device in the current working mode, target input information corresponding to the target day and night prediction model is acquired, and N is an integer greater than zero; inputting the target input information into the target day and night prediction model to obtain the current environment of the image acquisition device; and if the current environment is not matched with the current working mode, controlling the image acquisition device to be switched to a working mode matched with the current environment. According to the scheme, the hardware cost and the labor cost can be reduced, and the switching precision of the working modes of the image acquisition device is improved.

The invention relates to the field of space coronameters, in particular to a dual-mode switching system for a space coronagraph and a switching method thereof. The switching system comprises a self-calibration light source switching device, a light path switching device and a positioning device. A plurality of self-calibration light sources in the self-calibration light source switching device areconnected with a wavelength division multiplexer through optical fibers, and the wavelength division multiplexer is connected with an optical fiber connector. A motor in the light path switching device is connected with a worm, the worm and a worm gear shaft are installed on an outer frame, a worm gear is installed on the worm gear shaft and meshed with the worm, an optical fiber fixing rod is installed at the locking end of the worm gear shaft, and the optical fiber connector is installed on the optical fiber fixing rod. An encoder is connected to the positioning end of the worm gear shaft.The switching method comprises the steps that the encoder obtains angle position information; the worm gear shaft rotates to the position of a calibration angle, and a light path is calibrated; and the worm gear shaft rotates to a zero position, and starlight enters the space coronagraph. By improving the structure, the switching system is high in precision and reliability and small in weight andsize.

A temperature sensor for a radiant heater has a first tubular expansion element which is connected to its housing and contains a second rod-like expansion element, the two expansion elements having different coefficients of thermal expansion. The temperature sensor has two switching springs for different switching points. In order to adjust a second switching spring, which is fastened to a second switching spring base, the second switching spring base can be moved in the longitudinal direction of the rod and is then permanently fixed by bending or welding.

The invention relates to the field of intelligent circuit breaker control, and discloses a three-phase power grid electrical parameter measurement method comprising the following steps that A1, current and voltage signals of all phases of a three-phase power grid are synchronously sampled; A2, the sampled current and voltage signals of all phases are conditioned and converted into digital signals through A/D conversion; and A3, the converted current and voltage of all phases are calculated by adopting fast Fourier transform so that effective values UK and IK of harmonic voltage and current of each order and active power PK of all phases are obtained. The invention also discloses an intelligent circuit breaker control method. Intelligent circuit breaker control is performed by adopting the method so that switching precision can be effectively enhanced, the switching strategy can be simplified, the problems of intelligent circuit breaker diagnosis alarm and high-speed real-time data communication can be solved, the overall performance of the circuit breaker can be greatly enhanced, and the "four remote" functions of remote metering, remote control, remote signaling and remote regulating of the onsite circuit breaker can be realized.

A method for controlling a belt drive of a drivetrain of a motor vehicle, with a planetary gear set which shifts a transmission ratio between a starter-generator and a combustion engine, the planetary gear set having a ring gear which can be connected fixedly with respect to a housing by a brake, a web which is connectible to a crankshaft of the combustion engine of the drivetrain, having planet gears arranged around the circumference, and a sun gear which is connected in a rotationally fixed connection to a rotor of the starter-generator and to at least one ancillary unit, as well as having a first switchable free wheeling mechanism which blocks in the direction of torque from the rotor to the crankshaft and having a second switchable free wheeling mechanism which blocks in the direction of torque from the crankshaft to the rotor.

A control unit (100) for actuating a pressure valve, particularly for actuating an overpressure valve in an aircraft cabin, comprises an actuating body (20) and a pressure-controlled actuator (30) for the actuation of the actuating body (20) as a function of a predetermined threshold pressure valve, wherein the threshold pressure value can be adjusted by means of an adjustment device (40, 50). The adjustment device (40, 50) comprises a first adjustment unit (40) and a second adjustment unit (50), wherein the actuating body (20) can be adjusted by means of the first adjustment unit (40), and the actuator (30) can be adjusted by means of the second adjustment unit (50).