54results about How to "Reduce survey costs" patented technology

A system for developing and implementing empirically derived algorithms to generate decision rules to predict invalidity of subject reported data and fraud with research protocols in surveys allows for the identification of complex patterns of variables that detect or predict subject invalidity of subject reported data and fraud with the research protocol in the survey. The present invention may also be used to monitor invalidity of subject reported data within a research protocol to determine preferred actions to be performed. Optionally, the invention may provide a spectrum of invalidity, from minor invalidity needing only corrective feedback, to significant invalidity requiring subject removal from the survey. The algorithms and decision rules can also be domain-specific, such as detecting invalidity or fraud among subjects in a workplace satisfaction survey, or demographically specific, such as taking into account gender or age. The algorithms and decision rules may be optimized for the specific sample of subjects being studied.

The invention discloses an underground cavity analysis method considering nonlinear softening and dilation characteristics of surrounding rock. According to the method, a hyperbolic softening model based on the characteristics of the Hoek-Brown criterion is established according to the characteristic that the strength parameter of the surrounding rock of a tunnel is weakened with the increasing of the strain of a plastic zone, the model is based on the characteristics of a resultant stress-strain curve of the surrounding rock, and reflects the nonlinear characteristics of the surrounding rock through example verification, the model is applied to analysis for the surrounding rock subjected to strain softening in underground construction, and a new method for an underground cavity analysis is established by considering the nonlinear softening and non-associated flow characteristics as well as a nonlinear failure criterion of a rock mass; the solutions of the stress of the underground cavity, the deformation of the cavity and the radius of the plastic zone are obtained; according to the method disclosed by the invention, the dilation characteristics of the surrounding rock are considered according to a non-associated flow criterion, and with regard to the deformations of the surrounding rock under different plastic models, application example results indicate that the strain dilation of a rock-soil material with dilation and strain softening is considered to be safe.

The invention discloses an automatic loss assessment method and system for automobile appearance on the basis of a deep neural network. A mobile phone shoots the long-shot/medium-shot photo of an accident automobile, automobile and automobile assembly component detection is carried out on the long-shot/medium-shot photograph in real time, according to an automobile and automobile assembly component detection result, a user is confirmed to shoot in a proper distance, and the user is prompted to shoot a first local automobile photo; the mobile phone continuously shoots the detail photo of the accident automobile, and a damage area in the detail photo is detected in real time; when the damage area is detected, the user is prompted to shoot a first detail photo; after the photo finishes beingshot, the user is continuously prompted to approach to shoot the area, when the damage area is detected again, the user is prompted to shoot a second detail photo, after the second detail photo finishes being shot, a current damage unit is submitted; and a background server carries out damage identification on each group of damage units submitted from the mobile phone, and the identification results of multiple groups of damage units are combined to obtain the damage details of the accident automobile.

The invention provides an amphibious geotechnical engineering investigation platform and a use method. The investigation platform comprises the following composition modules of an operation platform used for installing devices required for exploration sampling and in-situ tests, a walking module arranged below the operation platform, comprising a rack and a crawler-type walking device and providing power for the operation platform to travel on land, a leveling module arranged between the operation platform and the walking module and used for keeping the operation platform horizontal in the land area investigation process, a lifting module arranged around the operation platform, comprising hydraulic lifting devices and multiple pile legs and used for making the pile legs ascend and descendrelative to the operation platform, and a propelling module arranged on the rack and providing navigation and steering power for the operation platform in the water area investigation process. The amphibious geotechnical engineering investigation platform has the beneficial effects that amphibious operation is achieved, the influence caused by tide coming and tide going on intertidal zone area investigation is overcome, and it can be guaranteed that the operation platform is horizontal.

The invention discloses an engineering investigation unmanned aerial vehicle system based on satellite positioning and navigation and an investigation surveying and mapping method. The engineering investigation unmanned aerial vehicle system comprises an unmanned aerial vehicle body, supporting arms, propellers, undercarriages, a transportation device, a sampling device, a power supply, a monitoring device and a workstation. The unmanned aerial vehicle body internally comprises a navigation positioning module, an environment detection module, a survey lofting module, a survey work monitoring module, a wireless communication module, a transportation module, a sampling module, a text image recognition module, a flight control module, an anti-collision protection module, a power supply module, a memory and a loss finding module. According to the invention, an advanced positioning navigation technology, a remote sensing image technology, a radar technology, a flight control technology, a real-time aerial image voice communication technology, an intelligent investigation technology, a text image recognition technology and a wireless transmission technology are adopted; geotechnical engineering investigation and high and new technologies are combined, and multiple important functions such as investigation automatic measurement and lofting, coordinate elevation remeasurement, drillingmachine navigation reminding, investigation work quality progress deviation rectification, automatic transportation and sampling, man-machine interaction, text image automation and unmanned aerial vehicle loss finding are achieved.

The invention provides a geological prospecting method applied to shallow-buried underground engineering in a water-deficient area. The geological prospecting method comprises the steps that geological prospecting is conducted, geological information of an engineering site is preliminarily obtained through remote sensing geological interpretation and engineering geological survey; comprehensive geophysical prospecting is carried out, and a small amount of drilling and logging work is carried out on key parts; in combination with an indoor rock-soil mechanics test, engineering geological condition comprehensive evaluation of an engineering site is obtained and comprises conventional stratum lithology, geological structure and surrounding rock classification, foundation bearing capacity anddynamic physical and mechanical parameters of a rock-soil body, and the parameters are used for engineering stability calculation of national defense engineering under the strong dynamic load condition. The investigation result meets the conventional requirements of shallow-buried underground engineering design construction, and meets the special purpose of national defense engineering. The geological prospecting method overcomes the defect that time and money are wasted when conventional prospecting mainly based on drilling is adopted, the prospecting cost is low, the efficiency is high, andthe geological prospecting method is more suitable for geological prospecting of shallow-buried underground engineering in arid and water-deficient areas.

The invention discloses a power penetrometer capable of automatically taking energy correction and dynamic responses into consideration. The power penetrometer sequentially comprises a drop hammer (7), a stabilizing tail vane (6) and a feeler lever (1) from top to bottom, wherein the upper end of the feeler lever (1) is connected with the stabilizing tail vane (6), third strainometers (4.3) are symmetrically mounted on the inner wall of the upper end of the feeler lever (1), second acceleration sensors (3.2) are symmetrically arranged at the lower end of the stabilizing tail vane (6), a conical tip (2) is arranged at the lowermost end of the feeler lever (1), a first acceleration sensor (3.1) and second strainometers (4.2) are arranged in the portion, above the conical tip (2), inside the feeler lever (1), a friction sleeve (5) is arranged outside the feeler lever (1), and first strainometers (4.1) are arranged on the inner wall of the top of the friction sleeve (5); and the drop hammer (7) which can be automatically triggered to drop is arranged on the upper portion of the stabilizing tail vane (6), and electric signals of all sensors of the penetrometer are transmitted to a data acquisition and analysis instrument (9) through a coaxial cable (8.1) and a signal cable (8.2). The power penetrometer can evaluate dynamic responses and detect the strength of a soil body and has the characteristics of being in situ, multifunctional, automatic and the like.

Application of engineering geophysical exploration technology to engineering investigation and foundation detection in reclamation areas is characterized in that the technology can realize geophysical exploration of super-thick backfill layers and basement rock depth in reclamation areas and backfill dynamic compaction detection. The specific contents are as follows: achieving geophysical exploration of super-thick backfill layers and basement rock depth in reclamation areas; adopting a rig sinker bar for excitation to increase the seismic source energy, wherein the sinker bar is 400-500 Kg in weight and 2-3 m in drop distance and is used for prospecting data of 15-40 m depth; achieving backfill dynamic compaction detection; (1) adopting a 200 Kg hammer for dynamic sounding to effectively penetrate 12 m gravelly soil fill stratum so as to visually obtain design parameters of coarse-grained composite soil plain fill before and after ground treatment; (2) combining the monitoring method and the multi-channel instantaneous surface wave method to effectively detect the dynamic compaction effect and accurately and quantitatively evaluate the influence depth, range and strength parameters of dynamic compaction.

Method for selecting an acquisition geometry for a seismic survey based on ability to resolve an a priori velocity model. Two or more candidate acquisition geometries are selected (301, 302), differing in areal coverage and cost to perform. Then compute a synthetic seismic dataset for each geometry using a detailed geometrical reference model of the subsurface (301). Invert the synthetic seismic datasets preferably using simultaneous source FWI, and preferably with Volume of Investigation constraints, to determine model updates (303, 304). Quantitatively assess the value of the additional traces in a fuller dataset relative to a subset (306), using one or more statistics based on the accuracy of the updated models, such as improved match to the reference model, better fit of seismic data, or rate of change in improvement with iterations. Inversions may be cascaded for further efficiency (314).

The invention provides a detecting method for a pile-bottom supporting layer of a mechanical pore-forming concrete filling pile. The detecting method comprises the following steps: (1) uniformly placing a plurality of dual-detecting wave detectors in a peripheral direction on the bottom of a large-diameter pile hole; (2) manually exciting elastic wave on a bottom center part of the pile hole by use of an electric spark earthquake source; (3) utilizing a shallow-layer seismograph to record reflected waves received by the dual-detecting wave detectors on the bottom of the pile hole; (4) analyzing and researching waveforms of the reflected waves to judge whether the bottom of the pile hole has undesirable geological conditions such as karst caves, fluid bowls or crushed zones and the like within a certain range. According to the method provided by the invention, the bottom of the pile hole is not needed to be reconstructed for carrying out geological exploration and drilling, so that the supporting layer detecting cost is greatly reduced, and the supporting layer detecting speed is high.

The invention discloses a sampling device for underground water detection. The sampling device comprises an air pump, an air valve and a sampler, wherein the output end of the air pump, the air valveand the input end of the sampler are sequentially connected; the air pump is connected with one end of the air valve through an air guide pipe, and the other end of the air valve is connected with theinput end of the sampler through a telescopic air guide pipe; the air guide pipe and the telescopic air guide pipe respectively comprise a plurality of branch air pipes which are correspondingly connected; gravity blocks for rope traction are arranged at the two sides of the sampler; a rope winder for controlling the length of a rope is arranged on the air guide pipe; the output end of the rope winder is connected with the end part of the rope; the sampler controls the descending depth through controlling the length of the rope by the rope winder and matching with the air output by the air pump; and in addition, the sampler is stretched to ascend through the rope winder. When the technical scheme is adopted, the accuracy of collected water samples is ensured, the collection efficiency isimproved, and the survey cost is reduced.

The invention discloses a method for quickly determining rock cutting strength and anti-cutting strength indexes. The method is implemented specifically according to the following steps that 1, fieldgyration penetration testing is conducted on rock, and thus gyration penetration data are obtained; 2, the data obtained in the step 1 are processed, and thus the mean values of gyration penetration drilling parameters of all strata are obtained and comprise the mean value of gyration torque and the mean value of drilling pressure; and 3, the cutting strength and anti-cutting strength indexes of all the strata in the rock are calculated through the drilling parameters obtained in the step 2. The method is adopted to calculate basic cutting strength, calculation parameters of the basic cuttingstrength only need to be from the field gyration penetration test, drilling is not needed, the influences of traditional drilling sampling and indoor geotechnical testing on disturbance of a foundation soil mass and inaccurate test results can be avoided, the reconnaissance procedure is simplified, the reconnaissance cost is lowered, and application prospects are broad.

The invention provides a power device of survey equipment. The power device of the survey equipment comprises a power generation mechanism and a moving mechanism; the power generation mechanism and the moving mechanism are electrically connected with each other; the power generation mechanism is a crawler power generation mechanism; and the moving mechanism is a crawler moving mechanism. According to the power device of the survey equipment, energy and power can be provided for most sea bottom survey and monitoring robots so that the moving range of the survey equipment can be greatly enlarged; and moreover, the power device of the survey equipment can be recovered to reduce the survey cost; through long-time deep diving survey, the survey detailed degree and accuracy of the sea area can be effectively enhanced to be convenient for construction and development of the sea area; and the power device of the survey equipment possesses wide applicability in the field of sea survey.

This application discloses a method, device and system for displaying the defective components of cultural relics as well as a method and device for determining the defective components of cultural relics and two kinds of electronic devices. The method for displaying the defective components of the cultural relics includes the following steps that: the actual three-dimensional model data of each preset component of a specified cultural relic are acquired; for each preset component, the actual three-dimensional model data of the preset component are compared with the pres-stored original three-dimensional model data of the preset component, so that the defect rate of the actual three-dimensional model of the preset component is obtained; defective component information is generated according to the defect rate of the actual three-dimensional model of each preset component and the preset defect rate threshold of each preset component; and the virtual-reality actual three-dimensional model of each defective component is displayed according to the defective component information. With the method for displaying the defective components of the cultural relics of the invention adopted, survey cost can be effectively reduced, and survey efficiency and the accuracy of survey results can be improved.