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64 results about "Soil survey" patented technology

Soil survey, soil mapping, is the process of classifying soil types and other soil properties in a given area and geo-encoding such information. It applies the principles of soil science, and draws heavily from geomorphology, theories of soil formation, physical geography, and analysis of vegetation and land use patterns. Primary data for the soil survey are acquired by field sampling and by remote sensing. Remote sensing principally uses aerial photography, but LiDAR and other digital techniques are steadily gaining in popularity. In the past, a soil scientist would take hard-copies of aerial photography, topo-sheets, and mapping keys into the field with them. Today, a growing number of soil scientists bring a ruggedized tablet computer and GPS into the field with them. The tablet may be loaded with digital aerial photos, LiDAR, topography, soil geodatabases, mapping keys, and more.

Intelligent layout method, system and equipment for land survey control network and medium

The invention provides an intelligent layout method, system and device for a land survey control network and a medium, and the method comprises the steps: building a space-time dynamic terrain model based on the obtained measurement data of a construction region; generating a candidate control point set in the construction area according to a preset layout density requirement; based on the space-time dynamic terrain model, performing stability analysis on each candidate control point in the candidate control point set to obtain a stability index of each candidate control point; based on the space-time dynamic terrain model, any two candidate control points in the candidate control point set are used as candidate control point pairs for time sequence intervisibility analysis, and time sequence intervisibility indexes of the candidate control point pairs are obtained; establishing a multi-objective optimization model according to the stability index and the time sequence intervisibility index; and solving the multi-objective optimization model by adopting a multi-objective evolutionary algorithm, and outputting a control network layout scheme set. By adopting the method, the point distribution quality of the control network can be improved.
Owner:YANGGU COUNTY NATURAL RESOURCES & PLANNING BUREAU

Frozen soil upper limit intelligent identification method based on multi-source data and deep clustering fusion

The invention discloses a frozen soil upper limit intelligent identification method based on multi-source data and deep clustering fusion, and belongs to the technical field of frozen soil exploration. The method comprises the following steps: firstly, collecting and preprocessing ground penetrating radar and high-density electrical method data, and registering with drilling data; constructing a sample data set by using a sliding window; constructing a double-branch convolutional auto-encoder to carry out unsupervised pre-training so as to fuse multi-source data features; on the basis, a clustering layer is introduced, a joint loss function combining reconstruction loss, clustering loss and supervision loss is adopted, semi-supervised deep clustering optimization is carried out, and underground media are divided into three types including a covering layer, a transition zone and frozen soil; and finally, automatically identifying the frozen soil upper limit depth of each point on the measuring line by using the trained model, and outputting a confidence coefficient. According to the method, the problems that a traditional method depends on artificial experience and is low in efficiency are solved, and intelligent, high-precision and high-efficiency identification of the frozen soil upper limit is achieved.
Owner:CHINA RAILWAY DESIGN GRP CO LTD

Measuring device for land management of territorial resources

The invention relates to the technical field of land measurement, and provides a land resource land management measuring device which comprises two mounting boxes and a fixing frame, positioning marking assemblies are mounted in the two mounting boxes, sleeves are welded and fixed to the top end faces of the mounting boxes, adjusting rods are slidably connected in the sleeves, and the adjusting rods are movably connected with the fixing frame. A laser range finder is fixed in the fixing frame through bolts, a laser transmitter and a laser receiver are mounted on the laser range finder, a folding protection assembly is mounted in the fixing frame, the positioning marking assembly comprises a storage box and a connecting cylinder, a guide groove is formed in the side end of the connecting cylinder, and a positioning mark is mounted in the guide groove. A center rod and a supporting rod are welded and fixed to the bottom end of the connecting cylinder, a sliding block is hinged to the bottom end of the supporting rod, and the sliding block is slidably connected to the top of the pressing plate in a limited mode. By means of the technical scheme, the problem that in the prior art, a land measurement device cannot conduct automatic and stable fixed-point marking work on the measurement starting point and the measurement end point is solved.
Owner:RIZHAO QUANWEI GEOGRAPHIC INFORMATION CO LTD

Land area measuring device and method for surveying

The invention discloses a land area measuring device and method for surveying, and relates to the technical field of laser measuring instruments.The land area measuring device comprises an unmanned aerial vehicle body, the bottom of the unmanned aerial vehicle body is provided with a measuring camera and a takeoff and landing support, the lower surface of the takeoff and landing support is fixedly provided with a fixing base, and the bottom end of the fixing base is fixedly connected with a mounting plate; and a protection assembly is arranged on the lower surface of the mounting plate. By arranging the protection assembly and the wind power transmission assembly, when the unmanned aerial vehicle flies, airflow pushes a spiral wind guide strip to drive a transparent protection cover to rotate slowly, impurities and dirt on the surface of the protection cover are scraped off in real time in cooperation with a rubber scraper, stains are prevented from blocking a measurement camera, and it is ensured that shot land measurement information is clear and accurate; the land area measurement precision is effectively improved; no extra energy consumption is needed for autonomous cleaning, cleaning power comes from natural airflow generated by flying of the unmanned aerial vehicle, no extra motor or other driving parts need to be arranged, energy consumption is saved, and autonomous and continuous cleaning of the protective cover is achieved.
Owner:YISHUI COUNTY HUIYU JIHE SURVEYING & MAPPING CO LTD

A spiral constant flow probe for soil measurement of a radon meter

ActiveCN224682410UNuclear radiationFlow probe
The utility model discloses a spiral constant flow probe for radon survey meter soil survey belongs to nuclear radiation detection technical field, including intermediate connecting piece, and the bottom end detachable connection of intermediate connecting piece has the gas guide main pipe, and the upper surface of intermediate connecting piece is provided with the flowmeter connecting hole and short stick connecting hole, and the bottom end of intermediate connecting piece is the circular truncated cone structure and is provided with the outer thread, and the gas flowmeter is connected with radon survey meter still, and the bottom end of intermediate connecting piece is the circular truncated cone structure and is provided with the outer thread, and the utility model sets up and has the intermediate connecting piece of thread, and the leakproofness between intermediate connecting piece can pass through the thread promotion and the detection soil, to make the measurement result more accurate.
Owner:INST OF GEOPHYSICAL & GEOCHEMICAL EXPLORATION CHINESE ACAD OF GEOLOGICAL SCI

Portable land survey point fixing device

The utility model relates to the technical field of land survey point fixing devices, in particular to a portable land survey point fixing device. Comprising a sleeve, a pushing and pressing cylinder is sleeved with the sleeve in a matched mode, a handle is arranged at the top of a pushing and pressing cylinder body, a locking mechanism is arranged at the bottom of the pushing and pressing cylinder body, and a locking plate and a movable top plate in the locking mechanism jointly move to lock or loosen a positioning marker post; the point fixing device is light in weight and low in cost, operation can be completed by one person, and convenience is greatly improved.
Owner:FEICHENG TIANHUA PLANNING & ARCHITECTURAL DESIGN CO LTD

Portable land surveying and marking device for landscape garden design

The utility model provides a portable land surveying and marking device for landscape garden design. The portable land surveying and marking device comprises a marker; a central jack is formed in the center of the top of the central module, the marker is inserted into the central jack, and a plurality of edge supporting holes are formed in the top of the central module around the central jack; a plurality of supporting modules are provided around the central module, the central position of the top of each supporting module is provided with a top opening, the top of each supporting module is further provided with an agraffe, one end of each agraffe is hinged to the top of the corresponding supporting module, and the other end of each agraffe is buckled in an edge supporting hole of the central module. The portable land surveying and marking device for landscape garden design does not relate to carrying and carrying of heavy objects, is convenient to carry, easy and convenient to install and firm in fixation, can be used for landscape garden design and can also be used in other fields needing land surveying and marking.
Owner:SHANXI ZHIDING ARCHITECTURAL ENGINEERING DESIGN CO LTD

A method for remediating organically contaminated soil by low-temperature thermal desorption combined with low-dose persulfate

The present invention belongs to the field of soil remediation, and specifically relates to a method for remediating organically contaminated soil using low-temperature thermal desorption in conjunction with low-dose persulfate, comprising: S1, soil survey to determine the target range for remediation; S2, clarifying the physical and chemical properties of the organic pollutants detected in S1; S3, determining process parameters; S4, arranging heating wells, extraction wells, and injection wells; S5, starting the heating wells and operating the in-situ low-temperature thermal desorption process; S6, injecting persulfate to degrade pollutants; and S7, detecting the effect of pollutant removal. The present invention, through the design of process modes and process parameters and the continuation of operating time, cleverly utilizes heating in a relatively low-temperature range to first remove volatile organic pollutants in the soil, while simultaneously rendering the soil's own organic active components inert. The residual heat is then used to activate persulfate and subsequently remove less volatile organic pollutants, effectively coupling physical-chemical remediation technologies and reducing remediation costs. The present invention is highly operational and has a high removal efficiency.
Owner:CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +2

A soil survey sampler

This utility model belongs to the field of information collection technology, and particularly relates to a soil survey sampler. The sampler includes a sampling cylinder body with a sampling shovel detachably connected to its lower end. The shovel has a trapezoidal cross-section at its end. A cleaning mechanism is movably connected to the upper end of the sampling cylinder body. The cleaning mechanism includes a rotating block, a pushing rod, a pushing ring, a rotating rod, and a cleaning ring. One end of the pushing rod is fixedly connected to the end face of the rotating block, and the other end is fixedly connected to the pushing ring. The outer diameter of the pushing ring is the same as the inner diameter of the sampling cylinder body. A rotating hole is provided on the lower end face of the pushing rod, and one end of the rotating rod is placed inside the rotating hole and engages with it. The cleaning ring is sleeved on the outer circumferential wall of the rotating rod, and the other end of the rotating rod is rotatably connected to the sampling cylinder body. A guide rod passes through the cleaning ring and is fixedly connected to the sampling cylinder body. Compared with the prior art, this utility model enables the cleaning brush bristles to thoroughly scrape away residual soil from the cylinder wall, eliminating cross-contamination of samples.
Owner:中科佳一(浙江)生态科技有限公司

Fixed point marking device for land survey

The utility model relates to the field of land survey equipment, in particular to a fixed point marking device for land survey, which comprises a rotating shaft, a wheel fixed on the rear side of the rotating shaft, a sleeve roller sleeved in the middle of the rotating shaft, a handle fixed on one side of the sleeve roller, and a marking mechanism comprising a spiral arc plate fixed on the front side of the rotating shaft, the top of the spiral arc plate is slidably connected with a push rod, the front side of which is fixed with an ink cylinder. The rotating shaft rotates to drive the spiral arc plate to rotate in the clockwise direction, then the push rod and the ink cylinder are driven to move upwards and then fall down rapidly, the ink cylinder falls down rapidly, the thorn cone is inserted into the deep position of the land, the thorn cone makes contact with the land and then ejects the rotating ball upwards, and then ink in the ink cylinder flows out of the outer side of the rotating ball. Therefore, the ink mark is not easy to damage, the definition and the durability are improved, and the smooth proceeding of subsequent review and construction is facilitated.
Owner:马山县乔利乡乡村建设综合保障中心

Land measuring device for land and forest land management

The invention discloses a land measurement device for land and forest land management, and belongs to the technical field of land measurement, the land measurement device for land and forest land management comprises an unmanned aerial vehicle and a laser radar, the laser radar is fixedly arranged at the bottom of the unmanned aerial vehicle, and the laser radar comprises a host, a side panel and a radar head, the main engine is fixedly arranged at the bottom of the unmanned aerial vehicle, the side panel is fixedly arranged at the bottom of the main engine, the radar head is arranged on the side wall of the side panel, and a rainproof cover is arranged on the side panel and located outside the radar head; two rotating rings are arranged on the side wall of the rainproof cover, a connecting rod is arranged between the two rotating rings, a scraper is arranged on the side wall of the side, facing the rainproof cover, of the connecting rod, and the scraper abuts against the side wall of the rainproof cover. According to the invention, the rain cover is arranged outside the laser radar, and the wind generated in the flight process of the unmanned aerial vehicle is used for cleaning the raindrops outside the rain cover, so that the influence of the raindrops on the measurement process of the laser radar is effectively reduced.
Owner:SHEN COUNTY NATURAL RESOURCES & PLANNING BUREAU

land surveying instrument

1. The name of the design product: land surveying instrument. 2. The use of the design product: for land area measurement. 3. The design points of the design product: in the shape of the product. 4. The picture or photo that best indicates the design points: perspective view 1.
Owner:QINGDAO EUROMONITOR ELECTRONIC TECHNOLOGY CO LTD

Enhanced management zones for precision agriculture

The present invention is a system and method for agricultural management-zone delineation to be done over broad geographic extents without overly-localized field-specific data. The instant innovation guides precision agricultural sampling and management by delineating enhanced management zones based upon remote sensing and artificial intelligence and combining the two with data derived from an existing countrywide soil survey database. In an embodiment, the instant innovation uses artificial intelligence from multiple sources to provide granular zone detail. Output of the present innovation can be aggregated to produce management zone sizes that have a level of uncertainty compatible with the needs of the customer-farmer and implementable given the capabilities of available equipment.
Owner:IOWA STATE UNIV RES FOUND INC +2

A sample collection device for soil survey

The present invention discloses a sample collection device for soil surveys, comprising a device body and supporting bases fixedly mounted on the left and right sides of the bottom surface of the device body; rotating guide rods are disposed within the supporting bases on both sides of the device body, rotatable laterally via bearings; lifting threaded rods are disposed vertically via bearings on both sides of the device body; and a guide plate is pre-set laterally above the device body; a recovery guide wheel is fixedly mounted on the inner outer wall of the rotating guide rod within the supporting base, and a guide gear is fixedly mounted on the outer outer wall of the rotating guide rod; and a drive mechanism is fixedly mounted within the guide plate. This sample collection device for soil surveys utilizes the weight of the device body to increase stability during sampling. Its overall structure is relatively simple, and its manufacturing cost is lower than that of commercially available electric sampling tools, thereby reducing sampling costs.
Owner:CHINA NAT RICE RES INST +2

Soil layer surveying device for engineering surveying

The utility model discloses a soil layer surveying device for engineering surveying, which comprises a support, a top plate arranged at the top of the support, a hydraulic cylinder mounted at the top of the top plate, a lifting plate connected to the bottom of a connecting frame, and a drill cylinder rotatably connected to a position close to one end of the lifting plate, a drill bit is installed at the bottom end of the drill cylinder, a driving mechanism facilitating rotation of the drill cylinder is arranged on one side of the drill cylinder, one end of the drill cylinder penetrates through the interior of the support and is in sliding connection with the support, and a sampling mechanism facilitating stratified sampling of a soil layer is arranged on the inner side of the drill cylinder. The driving mechanism can drive the drill barrel to rotate so that the drill bit can drill into the soil layer, the sampling mechanism can conduct layered sampling on the soil layers of different depths, efficient drilling and accurate sampling of the soil layers are achieved, and then the soil layer exploration efficiency and the data reliability are improved through the structure.
Owner:SHANDONG RUITAITE MASCH MFG CO LTD

Soil sampling device and method of use thereof

The present invention relates to the technical field of soil survey sampling, and discloses a soil sampling device and a method for using the same, comprising: a main body and a disassembly part, wherein the main body comprises a sample pushing mechanism, and the disassembly part comprises a cleaning mechanism and a hard soil pushing auxiliary mechanism, wherein the cleaning mechanism is movably arranged at the bottom of the sample pushing mechanism, and the hard soil pushing auxiliary mechanism is movably arranged at the top of the sample pushing mechanism, and the hard soil pushing auxiliary mechanism comprises a connecting unit, a reversing unit, a winding and pulling unit, a transmission unit, and a pull rope unit, wherein the connecting unit is arranged on the surface of the sample pushing mechanism, and the reversing unit is arranged on the top of the sample pushing mechanism. The soil sampling device and the method for using the same can remove the soil sample inside the ring knife through the sample pushing mechanism after the ring knife has sampled, ensuring that the ring knife can sample again, thereby avoiding the need to carry more ring knives and avoiding the limitation of the number of samples on the number of ring knives during sampling.
Owner:WUXI MUJI SENSOR TECH CO LTD

Measuring device

The utility model provides a measuring device, and belongs to the technical field of land measurement. The high-adaptability territorial resource planning and measuring device comprises a fixing assembly and an adjusting assembly, the fixing assembly comprises a rotary supporting piece, a fixing plate, an elastic piece, a clamping plate and a tape measure, the fixing plate is fixedly connected to the top of the rotary supporting piece, and the adjusting assembly comprises a positioning flat plate, an inner threaded cylinder, a threaded rod, a positioning plate, a sliding sleeve and a hook. The internal threaded cylinder is fixedly connected to the top of the positioning flat plate, through the arrangement of the rotary supporting piece, the fixing plate, the elastic piece, the clamping plate and the measuring tape, the measuring tape can be conveniently disassembled and assembled to be used on the rotary supporting piece, the measuring direction of the measuring tape can be conveniently rotated and switched, and through the arrangement of the positioning flat plate, the internal threaded cylinder, the threaded rod, the positioning plate, the sliding sleeve and the hook, the measuring tape can be conveniently detached and assembled. The device can effectively adapt to soil measurement of different gradients, and the accuracy of measurement results is effectively guaranteed.
Owner:INNER MONGOLIA ZHENGYU REAL ESTATE APPRAISAL CONSULTING CO LTD

Land surveying method and device based on multi-source data fusion

The application discloses a land surveying method and device based on multi-source data fusion, and relates to the technical field of surveying, which comprises the following steps: collecting three-dimensional geodetic coordinate data and three-dimensional space point cloud data, obtaining starting three-dimensional coordinate and ending three-dimensional coordinate of surveying, constructing a triangulated irregular network (TIN) terrain model and a shortest path search model on the ground, searching for a starting node and a target node in a weighted undirected graph, calculating the shortest path on the ground and the ground distance, rendering the TIN terrain model to draw the shortest path on the ground, and setting through points and forbidden areas to update the shortest path on the ground and the ground distance. The application breaks through the dependence of traditional land surveying on the line-of-sight condition by fusing multi-source data and constructing continuous digital terrain, intelligently calculates and visualizes the shortest path on the ground, avoids the error accumulation of manual segmented operation, provides interactive path replanning capability, and significantly improves the accuracy, efficiency and scientific nature of planning and decision-making of ground surveying under complex terrain.
Owner:SHANDONG MINGJIA RECONNAISSANCE SURVEYING & MAPPING CO LTD

Convenient land measurement equipment

The utility model relates to the technical field of land measuring equipment, and discloses convenient land measuring equipment which comprises a telescopic sleeve, a handle is fixedly connected to the outer wall of the telescopic sleeve, a supporting column is slidably connected to the inner wall of the telescopic sleeve, a rotating shaft is rotatably connected to the interior of the telescopic sleeve, a first rotating handle is fixedly connected to the outer wall of the rotating shaft, and a second rotating handle is fixedly connected to the outer wall of the first rotating handle. A first shaft gear is fixedly connected to the outer wall of the rotating shaft, a second shaft gear is connected to the outer wall of the first shaft gear in an engaged mode, a first threaded shaft is fixedly connected to the lower surface of the second shaft gear, and a supporting assembly is arranged on the upper surface of the telescopic sleeve and used for supporting an adjusting structure. According to the utility model, the first fixing shaft drives the supporting column to perform telescopic lifting movement in the telescopic sleeve, so that the portability of the device during storage and carrying is achieved, the height of the measuring device can be adjusted according to different measuring requirements, and the effect that the measurement is more accurate and convenient is achieved.
Owner:李伟

Methods, devices, equipment, media, and products for identifying and retroactively recognizing historically lost arable land.

This application discloses a method, apparatus, equipment, medium, and product for identifying and retroactively recognizing historical outflow of cultivated land, belonging to the field of land and resources survey and monitoring technology. The method includes: constructing a candidate base map of historical outflow of cultivated land based on multi-time-series land change survey vector data; generating a constraint layer based on multiple spatial constraint data; performing spatial intersection elimination based on the candidate base map of historical outflow of cultivated land and the constraint layer to obtain a candidate set after avoidance; judging the integrity of the topsoil based on the candidate set after avoidance and soil survey data to obtain a set of intact topsoil patches; identifying crop types in the set of intact topsoil patches based on multispectral remote sensing data to obtain a crop type identification result set; performing concentrated contiguous analysis on the patches in the crop type identification result set to obtain a contiguous optimization result set; and performing post-processing on the contiguous optimization result set to generate a cultivated land retroactive vector layer. The embodiments of this application can effectively improve the efficiency and accuracy of identifying and retroactively recognizing historical outflow of cultivated land.
Owner:GUANGZHOU PLANNING DESIGN OFFICE +1

A land surveying method based on aerial image analysis

The application discloses a land surveying method based on aerial image analysis and relates to the technical field of land surveying. The application solves phase jump error caused by sudden deformation of frozen soil through a quantum optimization framework, significantly improves the continuity of the deformation field, simultaneously fuses a classifier designed according to the temperature-elastic modulus attenuation law, enhances the recognition ability of the thermal driving deformation, combines an edge computing architecture with a parameter self-adaptive mechanism, realizes minute-level deformation early warning response, and further introduces a cross-modal fusion strategy to expand the monitoring dimension, effectively compensates for the scene limitation of a single sensor, and simultaneously supports a derivative application such as illegal building detection through a capsule network and a differentiable morphological operator.
Owner:DONGYING TIANZHENG REAL ESTATE ASSETS APPRAISAL & SURVEYING CO LTD

A method and device for automatically refining the fuzzy positions of historical soil survey sampling points

The present invention discloses a method and device for automatically refining the fuzzy positions of historical soil survey sampling points. The method mainly includes: performing structured processing on the scene description text of the target sampling point and the reference sampling point to obtain location information and geographic scene information; loading the geographic element vector layer to generate a geographic scene unit layer; eliminating scene units that are not adjacent to the sampling point through preliminary data screening; using the reference sampling point positioning data as an important reference standard, using the entropy method to obtain the geographic scene feature importance weight; matching the target sampling point with the scene unit one by one, and calculating the similarity between the target sampling point and each scene unit in the geographic scene unit layer based on the membership function and the feature importance weight, and then finding the scene unit with the highest similarity, and assigning the precise position of the target sampling point to the center point position of the scene unit. The present invention is time-saving and highly accurate.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI +1

A soil sampling device for a whole section of soil survey

This invention belongs to the field of soil survey technology, and in particular relates to a soil survey whole-section soil sample collection device, including a stainless steel frame. Support rods are welded and fixed to the inner sides of both the upper and lower ends of the stainless steel frame. A push-and-unload component is installed between two of the support rods. This invention allows for convenient and labor-saving vertical insertion of the stainless steel frame into the soil profile via a cutting section. Furthermore, by pulling the handle to the right, two protruding pillars move along an "L"-shaped guide groove at the top of the stainless steel frame, allowing the cutting plate to first rotate parallel to the baffle and then stably move to the right. This enables the separation and cutting of the collected soil sample from the soil, facilitating sample detachment and ensuring that the entire soil sample is collected in one operation. The operation is simple.
Owner:GEOPHYSICAL SURVEY TEAM OF CHINA COAL GEOLOGY ADMINISTRATION

Foundation rock soil sampling device for water conservancy and hydropower engineering

The utility model belongs to the field of hydraulic engineering, and relates to soil investigation, in particular to a foundation rock soil sampling device for water conservancy and hydropower, which comprises a body, the body comprises a drill pipe and a drill bit which are used for being inserted into rock soil, a positioning plate is fixedly connected in the drill pipe, and the upper side of the positioning plate is fixedly connected with a miniature electric push rod. The lower end of the micro electric push rod penetrates through the positioning plate and is rotationally connected with a transmission rod, the end, away from the micro electric push rod, of the transmission rod is rotationally connected with a soil scraper, the upper end of the soil scraper is slidably connected with a sliding rail, the sliding rail is fixedly connected with the positioning plate, and a first groove allowing the soil scraper to penetrate through is formed in the side face of the drilling pipe and corresponds to the soil scraper. Soil scraping grooves are formed in the two sides of the soil scraper, soil discharging holes are formed in the bottom of the soil scraper, a soil collecting groove is formed below the soil scraper, and a second groove allowing the soil collecting groove to penetrate through is formed in the side face of the drilling pipe.
Owner:SHANDONG WEIYUAN INTELLIGENT EQUIPMENT CO LTD

A high-precision positioning method and system for land surveying

The application discloses a high-precision positioning method and system for land surveying, and relates to the technical field of land surveying. The method introduces a terrace step line segment set in the land surveying process, and constructs a terrace step section based on a plurality of boundary points continuously collected. The geometric relationship of the boundary points is modeled as a whole by using the consistency feature of the step extension direction and the stability feature of the step height level, so that the positioning result is no longer dependent on the instantaneous satellite positioning solution accuracy of a single boundary point, but can fully utilize the regular geometric structure of the terrace terrain itself to constrain and analyze the boundary points. In this way, in a complex measurement environment with shielding, multipath effect or satellite signal fluctuation, the influence of single-point anomalies on the overall measurement result can be effectively reduced, and the stability and reliability of the terrace boundary measurement result in terms of direction continuity and height consistency can be improved.
Owner:GUIZHOU JINGANG INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD

A soil survey device for petroleum drilling engineering surveying

This invention relates to the field of petroleum exploration technology, specifically to a soil layer surveying device for petroleum drilling engineering surveying. It includes a main frame and further comprises: a hydraulic telescopic rod, symmetrically and vertically fixed to the main frame; a lifting drive frame, fixed to the top of the telescopic end of the hydraulic telescopic rod; a penetration clamping cylinder, located in the middle of the lifting drive frame, with open upper and lower ends for clamping and allowing the probe rod to pass through; and an auxiliary loading and unloading mechanism located above the penetration clamping cylinder. The auxiliary loading and unloading mechanism includes a loading and unloading sleeve coaxially arranged with the penetration clamping cylinder; a rotating drive ring is coaxially rotatably connected inside the loading and unloading sleeve. This invention integrates the functions of automatic probe rod supply, threaded connection, uniform speed penetration, segmented extraction, and automatic retrieval and storage, forming a complete closed-loop operation process. This reduces the frequent manual handling, alignment, and tightening of heavy physical labor and work interruptions in traditional exploration, significantly improving daily work efficiency.
Owner:SHANDONG LAKE ENG DESIGN CO LTD

Fixed-point marking device for land survey

The utility model discloses a land survey fixed point marking device which comprises a marker post, an electric push rod is fixedly connected to the inner side of the marker post, a pressing block is fixedly connected to the bottom end of the electric push rod, a piston block in sliding connection with the marker post is in contact with the outer side of the pressing block, and a pressure sensor in contact with the piston block is fixedly connected to the bottom end of the pressing block. The bottom end of the inner side of the marker post is fixedly connected with a fixing pipe, the bottom end of the outer side of the marker post is in contact with a fixing frame, and the inner side of the fixing frame is fixedly connected with a rubber sheet. After the marker post is inserted into the ground, the rubber sheet is controlled to continuously expand to tightly squeeze surrounding soil, so that the stability of the device after being inserted into the ground is ensured, the device can be prevented from inclining to the greatest extent when the device is subjected to external force such as external wind, and accurate alignment of a subsequent measuring instrument is ensured.
Owner:LINCANG JUNCHENG SURVEYING & MAPPING CO LTD