11results about How to "Guaranteed output performance" patented technology

The invention discloses a narrow linewidth fiber laser based on random distribution feedback loop self-injection locking, and relates to the technical field of fiber lasers. The wavelength division multiplexer, the erbium-doped optical fiber, the optical band-pass filter, the optical coupler I, the optical coupler II, the polarization controller and the optical isolator are sequentially connected end to end to form an annular cavity, the pumping source is connected with the wavelength division multiplexer, and the random distribution feedback structure is connected with the optical coupler III to form an optical fiber ring to form a random distribution feedback ring. A first port and a third port of the optical circulator are connected with the first optical coupler and the second optical coupler respectively to form a self-injection structure, a second port of the optical circulator is connected with the third optical coupler, and the remaining output end of the second optical coupler serves as the output end of the annular cavity. The laser frequency drift of the annular cavity can be reduced by utilizing the random distribution feedback ring, the effective length of the random distribution feedback structure is increased by increasing the round-trip times of optical signals, a narrow-band gain peak can be ensured, stable narrow-linewidth single-frequency laser output can be obtained, and the linewidth narrowing efficiency and the environmental sensitivity are improved.

The invention belongs to the field of robot joint torque measurement, and provides a thin film type torque sensor integrated on a harmonic reducer in situ and a preparation method thereof, and the thin film type torque sensor is integrated on the surface of a flexible gear flange groove or the inner side plane of a flange in the harmonic reducer in situ. The film type torque sensor comprises a middle transition layer film, an insulating film, a torque sensing unit and a protective film from bottom to top. And a signal processing unit of the film type torque sensor is arranged on one side of the groove of the flexible gear flange. Torsional deformation information measured by the torque sensing unit is superposed through the Wheatstone bridge circuit and then is output to the signal processing unit in the form of an electric signal. The thin film type torque sensor can effectively eliminate interference generated by rotation of the wave generator in the process of in-situ measurement of the output torque of the harmonic reducer, and accurate output torque information is obtained. The surface of the thin film sensor obtained by the preparation method is compact and non-porous.

The invention relates to an MPPT (Maximum Power Point Tracking) technology-based capacitor power taking device, which relates to the technical field of power distribution and comprises a voltage transformation and rectification module, a protection control module and a voltage conversion module, the input end of the voltage transformation and rectification module is connected to an alternating current power supply, the input end of the voltage transformation and rectification module is electrically connected with the output end of the protection control module, and the voltage transformation and rectification module is used for converting alternating current into direct current; the output end of the protection control module is electrically connected with the input end of the voltage conversion module, the output end of the voltage conversion module is electrically connected with the load, and the voltage conversion module is used for tracking the actual working power of the load in real time and adjusting the output power of the capacitor power taking device according to the real-time working power, so that the actual working power and the output power are balanced. According to the invention, the output power of the capacitor power taking device is adjusted, so that the actual working power of the load is balanced with the output power.

This application discloses a method for controlling pulsed emissions of reactant gas during fuel cell startup, relating to the field of fuel cells. The method includes: setting single-pulse emission parameters based on the capacity of the hydrogen removal reactor; establishing a dilution calculation model to predict changes in impurity concentration in the stack's gas chambers; determining, through iterative model calculations, the number of pulse emissions required to bring the impurity concentrations in the hydrogen and oxygen chambers below a threshold, and accordingly determining the total number of pulse emissions; and controlling the tailpipe valve to execute pulse emissions based on the total number of pulse emissions and the single-pulse parameters. This invention achieves on-demand emission through precise model calculations, significantly improving reactant gas utilization and reducing costs while ensuring safety and startup performance.

This utility model relates to a hand-held steam device, including a housing with a handle, a steam boiler placed inside the housing and capable of heating water into steam, a steam nozzle disposed on the housing, a steam output path formed between the steam boiler and the steam nozzle, and operable one-way valves distributed along the steam output path. The handle and the steam nozzle are disposed on opposite sides of the housing in the lateral direction. The steam boiler includes a boiler body with a vaporization chamber inside, and an opening is formed on the side wall of the boiler body. A sleeve is installed at the opening, and the sleeve has a first end and a second end that are laterally separated from each other. The first end is engaged with the opening and defines a steam outlet, and the second end extends into the vaporization chamber and defines a steam inlet. A steam outlet channel is formed inside the sleeve that fluidly connects the steam outlet and the steam inlet, and the steam outlet channel constitutes part of the steam output path.

The present invention discloses an output circuit and a switching power supply system using the circuit, including a step-down circuit for realizing voltage transformation regulation and a switching capacitor voltage stabilizing circuit for realizing voltage stabilization control; the signal input end of the step-down circuit serves as the signal input end of the entire output circuit, the control end of the step-down circuit is electrically connected to the enable end of the switching capacitor voltage stabilizing circuit, the signal output end of the step-down circuit is electrically connected to the signal input end of the switching capacitor voltage stabilizing circuit and serves as the energy storage end of the entire output circuit, and the signal output end or the wire grounding end of the switching capacitor voltage stabilizing circuit serves as the signal input end of the entire output circuit. The output circuit proposed by the present invention has a simple and intuitive structure, ensures the use effect and improves reliability; applying the circuit in a switching power supply system can effectively optimize the system structure and reduce the manufacturing cost of the system.

The present invention discloses a motor control method for a push-out vehicle refrigerator, wherein the vehicle refrigerator comprises a box body, a cavity arranged in the box body, a drawer arranged in the cavity, a motor arranged in the box body, a motor push-out slider arranged at the output end of the motor and located in the cavity, and a temperature sensor for detecting the temperature in the cavity. A door opening switch is arranged on the surface of the box body. When the temperature in the cavity is lower, the motor adjusts the overall output voltage of the motor with a higher PWM duty cycle, thereby increasing the thrust of the motor, so that the increased sliding friction of the motor push-out slider at low temperature is offset, thereby ensuring the output performance of the motor, and the drawer can be smoothly pushed out of the cavity. Through this scheme, the motor adjusts different PWM duty cycles according to different temperatures, so that the power and speed of the motor push-out slider to drive the drawer to the outside of the cavity are the same at each temperature, the stability is stronger, and more energy is saved.

The present disclosure relates to a fully differential DFF trigger, an odd frequency division circuit, a chip and an electronic device, and relates to the field of integrated circuits. The fully differential DFF trigger includes: a first driving stage circuit, which is used to generate an intermediate differential output signal at an intermediate differential output end according to a differential clock signal received at a differential clock end and a differential input signal received at a differential input end; a second driving stage circuit, which is used to generate a final differential output signal at a final differential output end according to the differential clock signal and the intermediate differential output signal. The present disclosure is applicable to high operating frequencies and wide frequency ranges, and has excellent differential output performance. The circuit structure adopts a fully differential symmetrical structure to ensure the output performance of differential signals. Using the fully differential DFF trigger and odd frequency division circuit of the present disclosure, various odd frequency division clock output signals with a duty cycle of 50% such as three-way frequency division, five-way frequency division, seven-way frequency division and nine-way frequency division can be realized.

The invention relates to the field of photovoltaic energy storage, in particular to a photovoltaic energy storage component discharge monitoring system based on artificial intelligence, and aims to solve the problem of unstable discharge during load supply caused by insufficient monitoring of discharge factors during use of a photovoltaic energy storage component. Comprising a load input unit, a load supply unit, an energy storage overall planning unit, an energy storage input unit and an energy storage sensing unit. The historical operation conditions of different energy storage assemblies are obtained, the energy storage assemblies are judged according to the historical operation conditions, and when the load supply demand exists, the load demand, the historical operation conditions of the energy storage assemblies and the current energy storage conditions of the energy storage assemblies are comprehensively judged, so that the optimal selection result of the energy storage assemblies is obtained; therefore, deep selection of the energy storage assembly is realized, and meanwhile, the operation process of the energy storage assembly is supervised, so that discharge selection of the energy storage assembly can adapt to load requirements.

This application relates to the field of artificial intelligence technology and discloses a data processing method, apparatus, device, and medium. The method includes: acquiring multimodal information based on client input; retrieving a business knowledge base based on the multimodal information and obtaining relevant target business information from the business knowledge base; determining initial response information of a large language model based on the multimodal information and the target business information; determining deviation segments between the initial response information and standard dialogue in a preset dialogue template library; correcting the deviation segments in the initial response information to obtain corrected target response information, and feeding back the target response information to the client. This application can improve the accuracy of knowledge matching and ensure the output effect of the large language model; by controlling the dialogue through standard dialogue, the accuracy, compliance, and consistency of the response dialogue can be guaranteed.

The utility model discloses a multilayer level vibration sieve discharge port structure relates to vibration sieve discharge technology field, including main box, the main box is set up obliquely, the top of main box is equipped with no. 2 sub -box and no. 3 sub -box from high to low in proper order, the inside intermediate position of no. 1 sub -box, no. 2 sub -box and no. 3 sub -box is equipped with the baffle laterally, the lower surface of no. 1 sub -box, no. 2 sub -box and no. 3 sub -box and in the baffle's one side intermediate position is equipped with main discharge pipe, the lower surface of no. 1 sub -box, no. 2 sub -box and no. 3 sub -box and in the baffle's other side both ends is equipped with sub -discharge pipe, the upper end of main box and the position of corresponding main discharge pipe is equipped with main receiving port, the upper end of main box and the position of corresponding sub -discharge pipe is equipped with sub -receiving port, guarantees multilayer level vibration sieve material particle output effect.