8results about How to "Easy and convenient" patented technology

The present application provides a method, device, equipment and computer-readable medium for locating an engine cylinder head air leakage fault, the method comprising: simultaneously collecting an engine near-field noise signal and a high-pressure oil pipe vibration signal of each cylinder in a plurality of cylinders of the engine, determining whether there is a historical noise signal similar to the engine near-field noise signal in a fault information library, if there is, it means that there is an engine cylinder head air leakage fault, then according to the time domain correspondence between the noise time-frequency data corresponding to the engine near-field noise signal and the vibration time-frequency data corresponding to the high-pressure oil pipe vibration signal, determining the cylinder with cylinder head air leakage fault in the plurality of cylinders. It can be seen that the present application can simply and conveniently determine whether there is an engine cylinder head air leakage fault by using the engine near-field noise signal, and can conveniently and quickly locate the faulty cylinder by using the time domain information of the engine near-field noise signal and the high-pressure oil pipe vibration signal, effectively improving the efficiency of engine troubleshooting.

The present application discloses a method and device for determining a traffic connection ratio and a data processing device. The method includes: for any preset traffic mode in a first preset traffic mode set, obtaining an estimated traffic connection ratio for connecting between the traffic station and the preset traffic mode within a preset time period; based on the payment information generated by using the traffic mode, determining a calculated traffic connection ratio for connecting between the traffic station and the payment-bound traffic mode within the preset time period; and based on each estimated traffic connection ratio obtained and the determined calculated traffic connection ratio, determining a traffic connection ratio for connecting between the traffic station and each preset traffic mode in the first preset traffic mode set. Thereby, the accuracy and scientificity of determining the traffic connection ratio of the traffic station is improved.

The safe frying and baking machine comprises a baking tray assembly, the baking tray assembly comprises a base and a baking tray detachably installed on the base, the baking tray is provided with a first coupler, a heating pipe is arranged on the side, facing the base, of the baking tray, the heating pipe is connected with the first coupler, the baking tray comprises a baking tray body and a first peripheral wall arranged on the peripheral edge of the baking tray body, and the first peripheral wall is connected with the first coupler. The heating pipe is arranged on the baking tray body, a mounting cavity is formed in the first circumferential wall, and the first coupler is mounted in the mounting cavity and located on the outer side of the heating pipe; the base is provided with a second coupler, the circumferential edge of the base is provided with a second circumferential wall, the second coupler is arranged on the second circumferential wall, and the first coupler corresponds to the second coupler in position and is matched with the second coupler in an inserted mode. The first coupler is arranged at the edge of the baking tray and located on the outer side of the heating pipe, the first coupler can be prevented from being affected by high temperature of the heating pipe when the frying and baking machine works, electric components in the first coupler can be prevented from being damaged by the high temperature, and the service life of the frying and baking machine can be prolonged.

This application belongs to the field of turbofan engine starting design technology, specifically involving a turbofan engine backwind starting method, including: Step 1, identifying whether the turbofan engine is starting under high-speed backwind conditions by whether the low-pressure rotor reverses; if the low-pressure rotor reverses, the turbofan engine is identified as starting under high-speed backwind conditions; Step 2, after identifying that the turbofan engine is starting under high-speed backwind conditions, determining the wind pressure resistance PdX of the turbofan engine starting under high-speed backwind conditions by the low-pressure rotor reverse rotation speed and the correspondence between the low-pressure rotor reverse rotation speed and wind pressure resistance; Step 3, after the low-pressure rotor changes from reverse rotation to forward rotation under the starter motor, reducing the nozzle throat area A8, adjusting the nozzle exit area A9 and vector angle δA9 to shield the nozzle throat, increasing the ignition speed to ignite the turbofan engine, and increasing the fuel supply speed to supply fuel to the turbofan engine, thereby starting the turbofan engine.

The utility model relates to a bicycle drive device technical field, specifically disclose a coaxial planetary row structure bicycle power assisting mechanism, including long axle, be equipped with the casing group on long axle, be equipped with motor assembly and planetary row gear mechanism between long axle and casing group, long axle passes through casing group, motor assembly and planetary row gear mechanism, long axle and casing group, motor assembly and planetary row gear mechanism coaxial arrangement, long axle is connected with the sprocket of casing outside, planetary row gear mechanism is located between motor assembly and sprocket, planetary row gear mechanism includes retainer, a plurality of planetary wheel, sun wheel and the inner tooth ring of connecting on casing group, a plurality of planetary wheel and inner tooth ring engage, long axle is equipped with the ratchet mechanism and sensor in the retainer, and the motor shaft in motor assembly is connected through one -way bearing between sun wheel. The power assisting mechanism in scheme can improve space utilization, reduce the weight of car body, shorten axial space.

The present application provides a model of a thermal management system for an aviation gas turbine engine, which belongs to the technical field of thermal management of aviation engines. The system model includes: an engine controller sub-model, which is used to calculate the current engine geometric adjustable variables and fuel flow rate according to the current atmospheric environmental conditions and engine operating instructions, and calculate the hot return oil flow rate according to the limiting temperature and the actual feedback temperature corresponding to the limiting temperature point determined according to the temperature bearing characteristics and safety requirements of the engine itself; an engine performance calculation sub-model, which is used to calculate the engine performance parameters required by the engine mechanical system sub-model and / or the engine fuel system sub-model; an engine mechanical system sub-model, which is used to calculate the heat generated by the engine bearing and the heat exchange with the air outside the bearing cavity; an engine fuel system sub-model, which is used to calculate the heat generated by the engine fuel system; and a radiator sub-model, which is used to calculate the temperature and pressure of the corresponding outlet after the heat exchange between the fuel and lubricating oil.

The present disclosure provides a method, computing device, computer-readable storage medium and computer program product for determining the instruction performance of a kernel program of a GPU. The method includes: setting multiple performance counters in each EU of a GPU and corresponding the number of the performance counter to a continuous bit segment of the kernel program; during the instruction execution process of the continuous bit segment of the kernel program, if the instruction execution corresponding to the program counter is in a waiting state, the count value of the program counter remains unchanged, the count value of the performance counter increases by one every clock cycle, and if the instruction execution corresponding to the program counter is not in a waiting state, the performance counter increases with the count value of the program counter; and when the instruction execution of the continuous bit segment of the kernel program is completed, determining the count value of the performance counter as the instruction execution time of the continuous bit segment. This improves the efficiency of GPU instruction-level performance debugging and reduces hardware costs.

The utility model provides a belt buckle component, which is expected to be difficult to visually recognize a magnet or a magnetic body from the outside of the belt buckle component under the condition that the magnet or the magnetic body is embedded in the belt buckle component. A buckle member (1, 2) is provided with: an injection-molded part (3); and at least one magnet or magnetic body (M1, M2) held by the injection molded part (3). The injection-molded part (3) is molded so that the magnet or magnetic body (M1, M2) is partially exposed at least in a first region (R1) of the magnet or magnetic body (M1, M2), the first region (R1) including a first partial region (E1) and a second partial region (E2) adjacent to a first surface (8d) and a second surface (81) of the magnet or magnetic body (M1, M2), the first surface (8d) and the second surface (81) being adjacent to each other; and a first edge (35) between the first partial region (E1) and the second partial region (E2) adjacent to each other.