1718results about How to "Improve sampling efficiency" patented technology

The invention discloses detection equipment and a detection method. The detection equipment comprises a sampling device used for collecting a sample to be detected, a preprocessing sample injection device used for preprocessing the sample from the sampling device, and a sample analysis device used for separating the preprocessed sample from the preprocessing sample injection device and analyzing the separated sample. The detection equipment is miniaturized, can quickly and accurately detect gas-phase matters or particulate matters without unpacking, and is high in accuracy and suitable for security check of airports, ports, metro stations and the like.

The invention relates to methods and systems for modifying agents using fluidic fractionation chambers.

The invention discloses a cylinder type soil sampling device for detection. The cylinder type soil sampling device comprises a transverse plate and a sampling cylinder, wherein a spiral shaft is arranged between a top plate and the transverse plate; a bearing is arranged at the side wall of a lifting rod; a slide sleeve is arranged on the spiral shaft, and is connected with the spiral shaft in a thread matching way; the outside wall of the slide lifting rod is connected with the inner wall of a rotary sleeve pipe through a spline; the interior of the side wall of the sampling cylinder is provided with an annular cavity which is coaxial with the sampling cylinder; an annular press plate is arranged at the bottom part of the annular cavity; a plurality of inclined through holes are formed inthe inside wall of the annular cavity; a guide rod is arranged in each inclined through hole, the upper end of each guide rod is connected with the inclined surface of an annular press plate througha slide mechanism, and the lower side of the annular press plate is connected with the bottom wall of the annular cavity through a reset spring. The cylinder type soil sampling device has the advantages that the structure is simple, the sampling efficiency is higher, the bending and breaking of the sampling cylinder are avoided, the disengaging from the sampling cylinder due to moving-up of sampling soil is avoided, the labor intensity is lower, the operation is simple and convenient, and the practicality is stronger.

The invention relates to an unmanned aerial vehicle device and a sampling method for automatic sampling of water quality, comprising a main body of an unmanned aerial vehicle, an unmanned aerial vehicle foot arranged on the side of the main body of the unmanned aerial vehicle, and an energy source and a control unit. The man-machine device also includes a mounting bracket arranged on the underside of the main body of the drone, and an automatic water quality sampling unit is mounted on the mounting bracket. Driven by the stepping motor, the rotating guide shaft rotates to the position of the sampling bottle, and the water quality sample is sequentially introduced into the sampling bottle through the sampling pump, the sampling hose, and the groove guide mechanism. The UAV device of the present invention can sequentially collect water quality samples at multiple sampling points in one working cycle, which is convenient for synchronous analysis after returning, further improves sampling efficiency, and can flexibly set the number of samples collected according to requirements and can flexibly control each water quality sample. The depth of sample collection is convenient for fast and automatic collection of water quality samples in different regions or watersheds.

The invention relates to a modularized multifunctional intelligent underwater sampler, which comprises a sealed cylinder, an upper end cover, a lower end cover, electrical plugs, a butt joint plate, a modularized hydraulic cylinder type liquid sampler, a modularized grab type sampler, an underwater camera, underwater lamps and a control module; wherein: the lower end cover is sealed at the lower part of the sealed cylinder, the modularized hydraulic cylinder type liquid sampler, the modularized grab type sampler and the underwater camera are fixed on the lower end cover, the underwater lamp is fixed outside the sealed cylinder, the upper end cover is sealed in the upper part of the sealed cylinder, the butt joint plate is fixed on the upper end cover, the electrical plugs pass through thebutt joint plate and the upper end cover, and are connected with the control module in the sealed cylinder, the control module is embedded and fixed in the space among the modularized hydraulic cylinder type liquid sampler, the modularized grab type sampler and the sealed cylinder, and is connected with the driving motors of two samplers and the underwater camera through wires. The invention has the advantages of modularized structure and diversified function, and is capable of being carried on an underwater vehicle for completing a plurality of sampling tasks.

The invention relates to an unmanned ship device and sampling method for automatic sampling of the water quality. The unmanned ship device comprises an unmanned ship body, an energy and control unit arranged in a bin of the unmanned ship body, and an automatic water quality sampling unit. The automatic water quality sampling unit comprises a sampling bottle, a supporting body mechanism for installation of the sampling bottle, a sampling pump arranged on the outer side of the unmanned ship body, a sample hose connected with the sampling pump, and an oscillating arm water-fetching mechanism forcontrolling the sampling hose to rotate. The oscillating arm water-fetching mechanism comprises a hollow pipe nested on the outer side of the tail section of the sampling hose, and a first stepping motor connected with the end, close to the sampling pump, of the hollow pipe. By means of the unmanned ship device and sampling method for automatic sampling of the water quality, water quality samplesof multiple sampling sites can be collected sequentially in a working cycle, the samples can be analyzed synchronously after being sent back, the sampling efficiency is further improved, and water quality samples of different areas or watersheds can be conveniently, quickly and automatically collected.

The invention discloses a drilling grabbing shovel type combined sampler device for planetoid detection and a use method of the drilling grabbing shovel type combined sampler device. The device comprises a feeding mechanism, a drilling mechanism, a grabbing shovel mechanism and a mounting plate. The use method comprises the following steps of (1) resetting a motor; (2) checking the motor; (3) performing sampling by a grabbing shovel motor; (4) detecting a shovel; (5) rotating a drilling rod to downwards move; (6) checking the drilling rod; (7) lifting the drilling rod; (8) checking the drilling rod; (9) performing sampling; (10) checking a sampling pipe; (11) enabling the drilling mechanism to upwards move; (12) checking a micro switch contact; (13) stopping a feeding motor; (14) checking a sampler; (15) arranging samples; (16) checking the shovel; (17) arranging the samples; (18) checking the sampling pipe; and (19) performing resetting. According to the drilling grabbing shovel type combined sampler device for planetoid detection and the use method of the drilling grabbing shovel type combined sampler device, sample collection can be realized on the surface of a planetoid, and deep sampling can be executed; bedding information of the samples can be kept; the device has the advantages of large sampling amount, various sample types, retention of original appearances of the samples and the like.

The invention discloses a whole process management and control-based environment sampling management system and method. The system comprises an environment sampling whole process management system, a laboratory data management system, a background database management system, one or more embedded system secondary development-based field sampling handheld management terminals, one or more cloud information distribution systems, one or more directed wireless data reception/transmission ends, one or more remote sampling terminals and one or more remote sampling tools, wherein the one or more cloud information distribution systems are supplied to the public for accessing environment sampling test data and reports, and the one or more directed wireless data reception/transmission ends are used for field short-distance data transmission. According to the system and method disclosed by the invention, the whole process management and control in an environment sampling process can be realized by utilizing technological means such as real-time video uploading, two-dimensional code encryption and task pushing.

The invention provides a testing method for the content of a coal seam methane sampled under a negative-pressure environment. The testing method comprises the following steps: sampling, namely carrying out in-situ measurement on the methane desorption amount; recording the final in-situ desorption amount V2; determining a methane desorption principle of a coal sample under the negative-pressure environment; carrying out lost methane amount calculation, namely calculating the loss amount V1 according to the measured methane desorption principle of the coal sample under the negative-pressure environment; carrying out residual methane amount laboratory determination, namely heating the coal sample in a sealed state and degassing in vacuum; testing the first-time degassing amount V3; crushing the coal sample by a ball grinding mill and degassing to determine the second-time degassing amount V4; carrying out gas component analysis in the degassing process; and determining the content X of the coal seam methane according to the V1, the V2, the V3 and the V4, and the weight m of the coal sample. The testing method for the content of the coal seam methane sampled under the negative-pressure environment is simple and feasible and particularly has important theoretical values and actual meanings on the desorption amount and the desorption principle of methane under the negative-pressure environment when negative-pressure pumping-out type spot sampling is carried out; the accuracy and the reliability of testing data can be greatly improved and theoretical data are provided for the coal mine safety production.

The invention relates to a seabed type conical investigating and drilling integrated machine which comprises a tower, a power head, a drilling tool storeroom, a manipulator mechanism, a leveling mechanism, an instrument box, a winch, a drilling tool, a clamp holder and a hydraulic pump. According to the drilling process of a seabed drilling machine, the power head provides the rotation power and realizes the feeding and recycling of the drilling tool through a tower guide rail on the tower; the drilling tool storeroom is arranged on the two sides of the power head and used for storing variousdrilling tools; the drilling tools are automatically stored and fetched through the manipulator mechanism, and the leveling mechanism keeps the drilling tool vertical to the seafloor when the integrated machine works; a core barrel for wire line coring is released and recycled by the winch; and the drilling tool is clamped and removed by the clamp holder. The integrated machine provided by the invention has a scientific and reasonable structure, is simple and convenient to control and safe and reliable to use and is suitable for the large-depth deep hole core sampling on seabed and also for operation on land.

The invention provides a method for estimating power system reliability. The method comprises the steps of (1) initializing the parameters of the power system, (2) calculating the PL(Xi) of each state of the power system, (3) calculating the W(Xi; u, v<k-1>) of each state of the power system, (4) updating the parameters as shown in the description, (5) determining whether the equation rk=PLtotal is satisfied, (6) calculating the dual sampled system load shedding flag as shown in the description and a shed load amount as shown in the description, (7) calculating W(Xi; u, v*), and calculating LOLP and EDNS as well as coefficients of convergence beta LOLP and beta EDNS, (8) determining whether beta LOLP is smaller than or equal to beta MAX and beta EDNS is smaller than or equal to beta MAX or N2 is greater than or equal to NMAX, and (9) outputting a reliability index. The method for estimating the power system reliability is still efficient and reliable in the reliability estimation of a reliable system having relatively low element failure rate, and therefore, the method is applicable to the reliability estimation of different reliable systems.

The invention relates to an original-state soil sampler comprising a soil sample collecting system and a soil sample pushing system. The original-state soil sampler is characterized in that the soil sample collecting system is formed by connecting a manual handle, an extension rod and a sampling head; the soil sample pushing system is formed by a shoving screw, a shoving rod, a shoving base and a shoving sheet, wherein the shoving screw is connected with the shoving rod inside the extension rod, and the shoving sheet is located inside the sampling head. In the invention, the sampling amount for one time can meet the requirement for monitoring regular pollutant index in soil, thereby greatly improving the sampling efficiency; the sampling head can be easily pushed out of the soil sample so as to ensure convenient and simple discharging process; the sample can be directly pushed out of the sampling head by the shoving sheet without using consumptive materials such as a circular ring, and the like, thereby saving resources; and the original soil level can be maintained and the sampling effect is ensured by controlling the whole process of sampling and discharging effectively.

The invention discloses a drone water sampling device for water quality monitoring. The device comprises a water intake pipe, a transfer pump, a water filling pipe and several sample storage devices. The several sample storage devices are uniformly distributed on a ring support, the inner side of which is provided with a tooth ring. The tooth ring is engaged with driving wheel, which is connected with a driving motor in a transmission way. The water intake pipe is communicated with the water filling pipe through the transfer pump. A water outlet of the water filling pipe is directed at one of the sample storage devices. The driving motor drives the ring support to rotate through the driving wheel. When the ring support rotates a certain angle, the water outlet of the water filling pipe is directed at another sample storage device. The transfer pump and the driving motor are both fixed on a pedestal, which is connected to a drone. By using the drone as a platform, acquisition of a water area's water samples to be observed can be rapidly completed, water samples of multiple sampling points can be acquired by one-time lift-off, and the platform is not directly contacted with the water surface so as to guarantee cleanness of the platform.

The invention relates to an energy consumption monitoring and evaluating system comprising a data collecting module, a control module, a data information processing module, a communication module, and an energy consumption management platform, wherein the data collecting module is used for collecting power energy consumption data, and transmitting the collected data to the data information processing module; the data information processing module calculates the collected power data to obtain an electric energy value, and transmits the electric energy value to the energy consumption management platform; the control module is used for receiving a control command emitted by the data information processing module, and controlling on/off of a power data collecting circuit; the communication module comprises a wired transmission channel, and a wireless transmission channel; the energy consumption management platform comprises a server and a data memory device, and is used for counting and analyzing energy consumption data, forming various energy consumption statistical reports and energy consumption evaluation models according to the analysis result, and guiding the energy conservation and emission reduction work. The energy consumption monitoring and evaluating system has the advantages of being accurate to sample, high in sampling efficiency, scientific and reasonable to evaluate and schedule, and the like; human disturbance factors are completely avoided.

The invention discloses a sampling device for geotechnical exploration, and belongs to the technical field of geological exploration equipment. The sampling device comprises a base, a stabilizing mechanism, a rock cutting mechanism and a drilling and sampling mechanism; four driving wheels are arranged at the bottom of the base; a supporting frame is arranged on the top of the base; the drilling and sampling mechanism comprises a lifting assembly, a lifting plate and a drilling and sampling assembly; the drilling and sampling assembly comprises a sampling barrel and a connecting frame; a rotating shaft is arranged on the connecting frame; a spiral blade is arranged on the rotating shaft in a sleeved mode; and a drilling head is arranged at the bottom end of the rotating shaft in a sleevedmode. The sampling device has the beneficial effects that the lifting operation of the drilling and sampling assembly can be realized, and the sample can be conveyed to a material collecting hopper byvirtue of the drilling and sampling mechanism; the automatic cutting assembly can be used for cutting and crushing rock samples; and a rotary assembly can drive the automatic cutting assembly to rotate to a proper position, so that the interference of the automatic cutting assembly on the operation of the drilling and sampling mechanism is avoided.

The invention provides a soil sampling and detecting device. The soil sampling and detecting device comprises a box body, a soil sampling mechanism, a supporting adjusting mechanism, a movable adjusting mechanism, a crushing and detecting mechanism, an auxiliary operating mechanism and a limiting mechanism. The movable adjusting mechanism suitable for adjusting and transferring different road surfaces is connected with the bottom of the box body and comprises a hub, a supporting plate, a rectangular inner threaded pipe, a rectangular sleeve, a first bevel gear, a second bevel gear, an outer threaded rod, a T-shaped rotating rod, a circular box, a third rotating shaft and a bent plate. According to the soil sampling and detecting device provided by the invention, the form of the corresponding hub needs to be adjusted in the transferring process for pushing and transferring; the device can be suitable for rolling of different types of road surfaces; and when the road condition of the soil conveying road surface is poor, transferring can be conducted in a manual carrying mode; time and labor are saved in the operation process; the working efficiency is improved; the device is suitablefor transferring of two kinds of road surfaces; and the application range of the transferring process is widened.

The invention relates to an antenna assembly detection method. An antenna tower is a basic structure of the antenna. A set of sub-reflector assembly is respectively arranged on each side of the antenna tower. A feed assembly is respectively arranged below each sub-reflector assembly. The above-mentioned parts are assembled on an assembling platform. Detection systems employed by the detection method are a laser tracker system, a theodolite system and a laser radar system. A space calibration point is arranged, and a spatial calibration process is implemented, such that a coordinate transformation relationship among the three detection systems is determined. One detection system is used for measuring the assembling platform, and for determining the transformation relationship between the assembling platform and an assembling reference coordinate system. When the parts are installed, the parts are installed according to the installation requirements and measuring characteristics. Detection means with lower implementation intensity and higher sampling efficiency is adopted.

The invention relates to a sensor test system and method. The test system comprises a ground power supply module, a sensor module, a data collecting module, a parameter setting module, a sampling rate determining module, a demand determining module, a test module and an output and storage module. The sensor test method includes the steps that the parameter setting module conducts initial setting, test demands are determined, and a voltage signal output by the whole sensor module is collected; the collected voltage signal is input into the test module for testing, and test results are finally analyzed. By means of the sensor test system and method, the no-less-than-250-circuit sensor output voltage is measured, the single-sensor working performance is detected, the requirements that the system test circuit number can be increased and is easily increased can be met, and the test efficiency is high.

The invention discloses a parameterized-sparse-representation-based single-bit target time delay estimation method of a compressed sensing radar. The method comprises: a possible delay range of a target is discretized; on the basis of a Taylor interpolation method, parameterized sparse representation of a radar echo is carried out at a nearest neighbor delay grid of the target; a single-bit compressed sensing model is constructed; a nearest neighbor delay grid of the target is calculated based on a single-bit compressed sensing sparse reconstruction algorithm; and according to an alternate optimization method, an offset value between the target delay and a nearest neighbor discrete grid and a target reflection coefficient are estimated to complete target delay parameter estimation. Therefore, problems of slow sampling rate, complicated quantization structure and high power consumption of the traditional compressed sensing radar re solved effectively, so that the cost is lowered and thesampling efficiency is improved. Meanwhile, the BIHT algorithm has the low computational complexity; the delay estimation precision obtained by the convex optimization method is high; and the anti-noise performance is good.

The invention discloses an adaptive distributed parallel training method for a neural network based on reinforcement learning, and provides an optimal solution for segmentation and scheduling of a large-scale complex neural network. Firstly, the influence of a neural network model structure and calculation attributes on execution performance is analyzed, on this basis, performance factors including calculation cost, communication cost, memory utilization rate and the like are extracted, a multi-dimensional performance evaluation model capable of comprehensively reflecting distributed training performance is constructed, and comprehensive performance of a parallel strategy is improved; secondly, self-adaptive grouping of operators is realized according to attribute characteristics of the operators by utilizing a feed-forward network, the degree of parallelism is determined, and end-to-end strategy search is realized while the search space is reduced; and finally, based on importance sampling, a near-end strategy gradient iteration optimization reinforcement learning model is adopted, an optimal segmentation and scheduling strategy is searched, the strategy network offline learning capability is expanded, and algorithm stability, convergence rate and strategy search performance are improved.