13results about How to "Data deviation is small" patented technology

The utility model discloses a kind of automobile stabilizer bar detection tool, it is related to automobile detection technical field, including box, two motors are installed in the inside of box, the one end of each motor is connected with screw rod, the outer wall of screw rod is connected with support with thread, the top end side of support is equipped with hydraulic cylinder, the telescopic end of hydraulic cylinder is connected with push rod, the outer wall of push rod is slidably connected with two push blocks, the inner wall of each push block is equipped with sliding slot, each push block is slidably connected with push rod by sliding slot;In the utility model, balanced force of stabilizer bar is realized by three-point positioning using fixing assembly, actual installation working condition is simulated, local stress concentration problem caused by traditional single-point, two-point clamping is avoided, ensure that stabilizer bar is evenly stressed during detection process, avoid deformation or damage caused by improper clamping, reduce the data deviation generated by clamping problem, improve detection accuracy.

The invention discloses a multi-modal physiological signal dynamic impedance adaptation and synchronous acquisition system, which belongs to the technical field of multi-modal data acquisition, and comprises a plurality of multi-modal data acquisition terminals, a relay gateway and an upper computer, the multi-modal data acquisition terminals are connected with the relay gateway, and the upper computer is connected with the relay gateway; each multi-modal data acquisition terminal comprises a multi-modal data acquisition end, a control module, a wireless communication module and a storage module, the multi-modal data acquisition end is used for acquiring multi-modal data, the control module receives data transmitted by the multi-modal data acquisition end and transmits the received data to the storage module and the relay gateway, and meanwhile, the wireless communication module transmits the received data to the relay gateway. The impedance is dynamically adapted to improve the input signal quality of the multi-modal data acquisition end; the storage module is used for storing data transmitted by the control module, and the wireless communication module is used for transmitting signals. By adopting the system, the portability of equipment and the wearing comfort of a user are improved, and the synchronization precision is high.

The application relates to a multi-parameter water quality monitoring device which comprises a turbidity sensor, a flow cell, a residual chlorine sensor, a PH sensor and a conductivity sensor; the turbidity sensor is suitable for being connected to a water inlet; the flow cell is internally provided with a residual chlorine sensor bin, a PH sensor bin, a conductivity sensor bin and a connecting channel; the residual chlorine sensor bin, the PH sensor bin and the conductivity sensor bin are vertically arranged; the connecting channel is horizontally arranged and is in communication with the bottoms of the residual chlorine sensor bin, the PH sensor bin and the conductivity sensor bin; the residual chlorine sensor is arranged at the internal top end of the residual chlorine sensor bin; the PH sensor is arranged at the internal top end of the PH sensor bin; and the conductivity sensor is arranged at the internal top end of the conductivity sensor bin; the flow cell is further internally provided with a pressure stabilizing bin; the pressure stabilizing bin is vertically arranged, the bottom of the pressure stabilizing bin is connected with the end of the connecting channel, the top of the pressure stabilizing bin is connected with the turbidity sensor, and the end of the connecting channel, which is away from the pressure stabilizing bin, is provided with a water outlet.

The invention discloses an acoustic radar near-surface wind speed inversion method and system based on entropy weight feature fusion, and the method specifically comprises the steps: carrying out the preprocessing of acoustic radar frequency spectrum data, and obtaining the preprocessed frequency spectrum data; based on the preprocessed spectrum data, constructing a Doppler window dynamic migration model based on turbulence dynamics power law distribution; on the basis of a Doppler window dynamic migration model, candidate spectrum peaks are selected at each height layer, a feature space is constructed, feature weights are dynamically distributed by using an information entropy theory, and an optimal spectrum peak is selected; introducing a symmetry constraint optimization strategy to the optimal spectrum peak, detecting the profile symmetry of the wind spectrum in the symmetric direction, and calibrating an asymmetric result to obtain a target wind speed inversion result; and comparing and evaluating the target wind speed inversion result and the wind speed of the anemometer tower as a reference to complete inversion result verification. According to the method, the wind speed inversion precision of the acoustic radar in a complex environment is effectively improved, and better evaluation and efficient utilization of wind energy resources are promoted.

This application discloses a method, system, equipment, medium, and product for calculating the carbon footprint of recycled building materials, relating to the fields of product life cycle assessment and carbon footprint accounting technology. The method includes: establishing a life cycle inventory of the source processes corresponding to inorganic solid waste based on the quality allocation method and / or economic value-added allocation method, and constructing a regionalized carbon emission factor database; introducing actual production line operation data as a calibration benchmark, verifying, correcting, and supplementing the activity level data of each unit process node, and constructing an activity level dataset; standardizing the emission factors and activity level data according to standardized accounting rules, constructing a general framework model for calculating the carbon footprint of recycled building materials, and calculating the stage emissions and the carbon footprint accounting results of recycled building materials based on the processed emission factors and activity level data. This application unifies the methodology, improves data quality and availability, and constructs a general and flexible accounting model.

The utility model relates to the field of auxiliary frock provides a kind of anti-roll bar link assembly device. Anti-roll bar link assembly device includes base;First clamping component, setting in base, first clamping component includes the clamping groove of being set in pair, clamping groove is used to place the node mandrel of anti-roll bar link, first clamping piece is arranged in clamping groove for the node mandrel clamped in clamping groove;Second clamping component, setting in base, second clamping component includes clamping rod, clamping rod is used to the bearing of the rod end of anti-roll bar link clamped between clamping rod and base. The anti-roll bar link assembly device can firmly fix node mandrel, avoid the positioning deviation caused by the thickness change of mandrel;Can eliminate the wobble clearance of rod end bearing;Reduce the data deviation after assembly;Adjustable first clamping piece can be adapted to node mandrel of different thickness without replacing parts, save the changeover adjustment time of traditional frock.

This invention relates to the field of wastewater treatment technology, and discloses a method and system for processing water treatment efficiency data in recirculating aquaculture systems (RAS). The method includes: assessing the influence of trace element parameters in standard water quality data of the RAS area on the RAS area, and converting them into influence weights corresponding to the trace element parameters; adjusting the influence weights based on the synergistic and antagonistic reactions between trace elements in the standard water quality data to obtain optimized influence weights; merging the trace element parameters and optimized influence weights into a comprehensive water treatment efficiency index for the RAS area; determining that the RAS area is in an inefficient operating state when the comprehensive water treatment efficiency index is lower than the lower limit of the historical threshold range; and selecting water quality adjustment strategies corresponding to the inefficient operating state from a preset water quality adjustment strategy library. This invention can improve the efficiency of RAS water treatment efficiency data processing.

This invention proposes an apparatus and method for evaluating the thermal oxidative stability of liquid compounds based on pressure measurement, belonging to the technical field of chemical analysis experimental apparatus. The apparatus includes an oxygen supply unit, a reaction unit, a cooling unit, and a pressure measurement unit. The oxygen supply unit controls the vacuuming and oxygenation of the apparatus. The reaction unit achieves precise temperature control and homogenization of the reaction liquid through a high-temperature heating circulating bath and a magnetic stirrer. The cooling unit eliminates interference from volatile products on pressure measurement through a cryogenic trap. The pressure measurement unit collects system pressure data in real time using a high-sensitivity pressure transmitter and transmits it to a computer. The method involves evacuating the apparatus and then oxygenating it to a set pressure, heating and maintaining the reaction temperature, monitoring system pressure changes through the pressure transmitter, and recording data and calculating oxygen consumption on the computer. This invention can track the oxygen consumption rate in real time, reveal the oxidation pattern, and is suitable for rapid and accurate evaluation of the thermal oxidative stability of various liquid compounds.

The utility model discloses high-precision transformer oil chromatography on-line monitoring equipment, which relates to the technical field of transformer oil chromatography on-line detection appliances, and comprises a cabinet body, the cabinet body is divided into two side areas, and one side area of the cabinet body is divided into an upper layer structure, a middle layer structure and a lower layer structure; a gear pump is installed on the bottom layer of an inner cavity of an area on one side of the cabinet body, an oil-gas separation box is installed at one end of the gear pump, an oil-gas permeable membrane is installed in the oil-gas separation box, and the oil-gas permeable membrane divides the oil-gas separation box into an oil cavity and a gas cavity. The effects of quick mounting and multi-tank placement are achieved, the problems that a traditional nitrogen tank is inconvenient to mount and dismount due to frequent use and the mounting number is small are solved, and the rapidness and durability of nitrogen tank replacement are improved; through cooperation between the gas analyzer and the data processing equipment, large-scale patrol of personnel is not needed, data deviation caused by human factors is reduced, and the real-time performance of monitoring is improved.

This application provides a microfluidic system for improving cell recovery. After droplet generation, a high-precision droplet sorting module separates droplets without DNA tags from those with successfully bound DNA tags. The purpose of sorting is to ensure that unlabeled droplets can be effectively reused in subsequent steps. The sorted droplets without DNA tags are then fused with DNA-tagged droplets by a droplet fusion module, thereby completing the relabeling of cells. This innovative step allows cells that were not effectively labeled during the initial droplet generation process to be reused, significantly improving cell recovery and utilization rates, reducing the initial cell volume required for experiments, avoiding waste of cell samples, especially precious cell samples, and reducing the cost of consumables and repeated experiments.

The application provides a multi-point driving coupling physical field magma activity model dynamic correction method, relates to the technical field of geological modeling, and comprises the following steps: multi-source data linkage positioning is performed to obtain spatial discrete control points; a non-uniform gridding initial geological model is constructed; grid neighborhood lithology-property correlation modeling is performed for each control point to generate a correlation parameterized submodel; multi-source measured data binding is performed to obtain spatial discrete property true value data; spatial mapping multi-source data constraint residual diagnosis is performed to output a spatial discrete residual distribution field; grid reconstruction and correlation parameterized submodel parameter correction iteration of a residual anomaly area are triggered until global residual converges to a preset residual threshold value, and a three-dimensional dynamic geological model is output. The technical problem that remote sensing interpretation and geophysical interpretation are independent in the prior art, magma activity information on the ground and underground cannot be effectively combined, and accurate analysis of magma activity mechanism and evolution rules is hindered is solved.

The invention discloses a concrete strength early warning system and method based on edge calculation analysis, and relates to the technical field of civil engineering, and the method comprises the following steps: collecting standard curing room temperature and humidity data, concrete pressure test data and a digital resiliometer measurement value, carrying out unified time recording, and writing into an electronic curing machine account; and synchronously curing the retention date and the maintenance duration. According to the invention, by recording the unified time and writing the unified time into the electronic maintenance ledger, source solidification of the indwelling date and the maintenance duration is realized, a whole-process traceable data chain is formed, and the authenticity and continuity of strength data are improved. And meanwhile, 28-day strength calculation is carried out based on complete pressure test data, an alarm value is revised, three-level early warning and rectification closed loop are triggered, the concrete strength is converted from post judgment to process pre-judgment, and the quality control initiative and the closed-loop management capability are improved.

The present application relates to the technical field of geological disaster prevention, and discloses a regional geological disaster prevention management method, device, equipment and storage medium, a reference correlation model of a regional lattice beam is constructed, a mapping relationship is established between reference identification space coordinates, flight parameters and pixel coordinates, in the flight process, based on the difference between the real-time collected identification pixel coordinates and the reference data, the flight trajectory is dynamically corrected, and the data deviation is reduced from the collection source; the corrected flight parameters are fully applied to subsequent image calibration, the consistency of image scale and spatial position is improved, the cooperation of flight correction and image data calibration processing is realized, the consistency of image scale and spatial position is improved, the classification early warning is carried out in combination with crack propagation parameters, deformation characteristic parameters and flight trajectory deviation cumulative amount, the data reliability is quantized, and false positives and false negatives caused by single parameter determination are avoided. Finally, the feature comparison accuracy and early warning reliability of the lattice beam monitoring are significantly improved, and the high-precision requirement of high and steep slope geological disaster prevention is met.