12results about How to "Eliminate demand" patented technology

The invention discloses an ultra-wideband weak signal detection method and system based on all-optical oscillation and phase-amplitude conversion. The method comprises the steps that spontaneous radiation light generated by an erbium-doped optical fiber amplifier is used as an optical carrier; modulating a weak radio frequency signal to be measured received by an antenna to the optical carrier through an optical modulator to form a modulated optical signal; the modulated optical signal is injected into an all-optical oscillation circuit composed of double loops, the all-optical oscillation circuit generates multimode optical oscillation by adjusting an optical attenuator, and the all-optical oscillation circuit comprises a double-loop interference structure; performing phase-amplitude conversion by adjusting the delay difference of the two light paths in the double loops to form an equivalent microwave photon filter so as to select and amplify the modulated light signal corresponding to the radio frequency signal of the set frequency band; and converting the selected and amplified modulated optical signal into an electric signal, and performing spectral analysis to detect the weak radio frequency signal to be detected.

This application provides an agile development method, apparatus, equipment, and medium for vehicle air conditioning control software, effectively addressing several shortcomings of existing vehicle air conditioning software development models. The method includes: constructing a visual model of multiple components of the vehicle air conditioning system in a modeling module according to requirements, and configuring the corresponding visual model by dragging and dropping core air conditioning components and connecting them; a central data dictionary responding to requests from an intelligent code generation engine, providing standardized data entities, enabling the intelligent code generation engine to map the standardized data entities to the visual model through a three-layer mapping architecture to obtain target code; the three-layer mapping architecture includes a semantic-data mapping layer, a platform adaptation layer, and a security and compliance layer; verifying the target code based on a three-layer verification structure to obtain verification results, and then implementing agile development of the vehicle air conditioning control software based on the verified target code.

The utility model relates to a closed circulating water replenishing device for a compressor. The closed circulating water replenishing device comprises the compressor, a heat exchanger, a pump set and a water replenishing pipe set. The heat exchanger inlet is connected with the compressor outlet which is provided with a first pressure sensor. The pump set is provided with a first water pump and a second water pump which are arranged between an inlet of the compressor and an outlet of the heat exchanger in parallel, a first electric valve is arranged at an inlet of the first water pump, and a second electric valve is arranged at an inlet of the second water pump. The water supplementing pipe set comprises a main water supplementing pipe, a standby water supplementing pipe and a pressurizing water supplementing pipe. An inlet of the main water supplementing pipe is connected with the on-site water supply pipeline, an outlet of the main water supplementing pipe is connected between the first pressure sensor and the pump set inlet, a third electric valve is arranged on the main water supplementing pipe, and a second pressure sensor is arranged at an outlet of the on-site water supply pipeline. A standby water supplementing pipe inlet is connected with the on-site water supply pipeline, a standby water supplementing pipe outlet is connected between the third electric valve and the main water supplementing pipe outlet, and a fourth electric valve is arranged on the standby water supplementing pipe.

The application relates to the technical field of parallel operation energy storage systems, and discloses a current transformer connection detection method, device and system and a storage medium. The selected phase of the parallel operation energy storage system is controlled to separately output power and perform dynamic change regulation, the correlation of power change amounts is analyzed according to the inversion power change amount of each energy storage inversion unit, the power grid power change amount and a detection model constructed, and the connection state of the CT is determined phase by phase. Compared with traditional manual detection or fixed threshold judgment, the method has high automation degree, can accurately identify the forward connection, reverse connection, wrong connection and missing connection of the CT in real time, abnormality can be found in time, and system failure or performance decline caused by connection errors can be avoided. The intelligent detection technology is adopted, the need for traditional auxiliary equipment is eliminated, and the detection efficiency and system reliability are improved.

This invention discloses a submarine cable acoustic monitoring system based on scattering-type fiber optic fingerprint technology, belonging to the field of fiber optic sensing technology. The system includes a light source module, a transmitting module, a submarine cable fiber optic sensing unit, a dual-balanced detector module, and a signal processing module. In the light source module, the continuous light output from the laser is split into a probe light and a local reference light by a dynamic beam splitter. The probe light is modulated and injected into the submarine cable fiber, and the resulting backscattered Rayleigh light carries acoustic information back. The dual-balanced detector module has a built-in light intensity monitoring unit that monitors the light intensity of the reference light and the scattered light in real time. By comparing the two intensities, it sends a feedback control signal to the dynamic beam splitter, dynamically adjusting the splitting ratio to maximize the interference term intensity coefficient, thereby improving the signal amplitude and sensing sensitivity. This invention solves the problems of limited sensing distance and high laser linewidth requirements in traditional systems, and is suitable for long-distance, high-reliability submarine cable acoustic event monitoring and location in deep-sea environments.

The application discloses a vehicle positioning estimation method, which comprises the following steps: obtaining an initial pose satisfying a switching condition based on a particle filter algorithm; fusing the initial pose of the vehicle satisfying the switching condition, laser point cloud data and wheel odometer data based on an unscented Kalman filter algorithm to estimate the pose of the vehicle and obtain vehicle pose estimation data; calculating the variance of the current pose state estimation to determine whether the current pose is reliable; if the current pose is reliable, updating the current pose as the current pose estimation data and estimating the pose state of the next state of the vehicle based on the unscented Kalman filter; and if the current pose is not reliable, estimating the pose state of the next state of the vehicle based on the particle filter algorithm. The application further discloses a corresponding system, a storage medium and a vehicle. When the positioning estimation is performed, the application can break the dependence on the third source input of the initial pose of the vehicle, and improve the positioning accuracy and stability of the vehicle in a complex nonlinear scene.

The utility model discloses a flat ground moving device of a cushion pier, which consists of a first cross beam, a second cross beam and a third cross beam, the first cross beam, the second cross beam and the third cross beam are positioned on the same horizontal plane, and the second cross beam is vertically connected to one end of the first cross beam. A third cross beam is slidably arranged at the end, away from the second cross beam, of the first cross beam, scissor jacks are arranged on the second cross beam and the third cross beam correspondingly, the scissor jacks are adjusted so that the scissor jacks can make contact with the lower surface of an upper flange plate of the cushion pier, and supporting rods are arranged on the scissor jacks and clamped in limiting grooves of the second cross beam and the third cross beam; the scissor jack is supported; and the scissor jack jacks the cushion pier, so that a lower flange plate of the cushion pier abuts against the limiting steel of the second cross beam and the limiting steel of the third cross beam, and the cushion pier is fixed. According to the flat ground moving device of the cushion pier, the stability of the cushion pier in the transportation process is guaranteed, and dependence on a crane or a forklift can be avoided or reduced when the cushion pier is moved.

The invention relates to a rescue work device for deployment during flood and other rescue works, comprising: a first inflatable tube layer having at least three linear first sides, each first side being connected to a first corner such that the first inflatable tube layer has at least three first corners, each first corner being connected to a second side of the first inflatable tube layer; each first corner part is provided with the same first included angle between two adjacent first side parts; a second inflatable tube layer substantially identical to the first inflatable tube layer and having at least three linear second sides, each second side being connected to a second corner portion such that the second inflatable tube layer has at least three second corner portions, each second corner portion has a same second included angle between two adjacent second side portions, and wherein the first inflatable tube layer is disposed over and rotated relative to the second inflatable tube layer such that each first corner portion projects radially outward from each of the second side portions by a first projection distance, and the second corner portion has a second included angle between two adjacent second side portions, and wherein the first inflatable tube layer is disposed over and rotated relative to the second inflatable tube layer such that each first corner portion projects radially outward from each of the second side portions by a second projection distance. And each second corner portion protrudes radially outward from each of the first side portions by a second protrusion distance, the first protrusion distance being substantially equal to the second protrusion distance, and the first inflatable tube layer and the second inflatable tube layer are connected via a floor member having a first floor surface and a second floor surface.

The utility model discloses a push rod rigidity detection mechanism, which belongs to the technical field of push rod testing, solves the problem of inconvenience in testing in the prior art, and adopts the technical scheme that the push rod rigidity detection mechanism comprises a linear driving mechanism and a grating ruler for detecting the displacement of a detected push rod, the tested push rod is provided with a first positioning hole located in an outer pipe of the tested push rod and a second positioning hole located in an inner pipe of the tested push rod, the testing platform is further provided with a first positioning piece and a second positioning piece, and the first positioning piece is used for being inserted into the first positioning hole to lock the outer pipe of the tested push rod on the testing platform. The second positioning piece is used for being inserted into the second positioning hole to lock the inner tube of the tested push rod on the test platform, and the second positioning piece is movably arranged on the test platform and can be driven by the linear driving mechanism to move on the test platform, so that the second positioning piece is aligned with the second positioning hole; and the output end of the linear driving mechanism is connected with the inner pipe through a second positioning piece. According to the utility model, the test is more convenient.

This utility model discloses a handle powder coating hanger, including a supporting base plate. A main rod is fixedly connected to the top of the supporting base plate. A rectangular vertical groove is formed on the outer wall of the main rod, and a lifting rod is slidably connected to the inner wall of the rectangular vertical groove. An adjustment component is provided on the outer wall of the lifting rod, and multiple circular sleeves are fixedly connected to the outer wall of the lifting rod. Two first hooks are fixedly connected to the outer wall of each of the multiple circular sleeves, and two second hooks are fixedly connected to the outer wall of the main rod. This utility model adjusts the height of the lifting rod by tightening bolts, thereby driving the multiple first hooks to rise and fall, realizing stepless adjustment of the distance between the first and second hooks. It is compatible with aluminum alloy handles with different mounting hole diameters, eliminating the need for dedicated hangers, saving the traditional replacement process, reducing production line downtime, and ensuring production continuity. Furthermore, it can realize the rotation of the hanger relative to the suspension position to meet the orientation and positioning requirements of processes such as powder coating.

The utility model provides an advanced multi-thread embroidery machine which comprises a transmission operated by a handle, and the transmission allows a group of second gears mounted on a main driving shaft to be meshed with each other; the transmission is provided with a handle shell provided with a through hole, the handle can be locked at a selected speed through a first spring and a ball body, and the handle comprises at least one vertical line shaft column set. A movable arm of the first gear is provided with a smoothing rod; the pressure applied to the spool can be adjusted; the vertical line shaft column set can ascend and descend along with the movable arm and can rotate around the axis of the vertical line shaft column set along with the movable arm, so that a thread shaft is allowed to be replaced or removed, a plurality of embroidery threads can be processed at the same time, complex patterns with automatic color and luster gradually changing are generated, and work cannot be interrupted even under the condition that the embroidery threads are broken. The embroidery machine provided by the utility model has higher productivity and use elasticity, and reduces the maintenance cost.

The invention discloses a software development demand management system and method, and belongs to the field of computers. The system comprises a demand acquisition module used for receiving demand information input by a user and generating structured demand data based on a preset software customer demand right template and a demand obligation book template; and the intelligent analysis engine is connected to the demand acquisition module and is used for performing multi-dimensional feature extraction on the structured demand data. According to the method, user input is guided through a structured template (right / obligation book), semantic ambiguity is analyzed in combination with a natural language processing technology, accurate alignment of demand description and a business target is ensured, and understanding deviation is reduced from the source. A bidirectional tracking mechanism of the demand verification module realizes dynamic association of demand entries and function design, and eliminates demand omission or realization deviation. The intelligent analysis engine predicts the demand change probability and the influence range based on a machine learning model, automatically marks the technical feasibility and conflict dependency relationship, and assists the team in quickly adjusting the priority.