60 results about "Ground slope" patented technology

An electromagnetic type multi-degree of freedom virtual roaming platform comprises a moving platform, a platform tilt actuating mechanism, a platform tilt perception system, two mats, a foot motion perception system, a corresponding flotation structure, a pressure sensor and the like, wherein the moving platform is composed of an array magnetic-driven unit, and the two mats are suspended on the platform and allow a user to directly tread. By means of the virtual reality technology, forward road situations and surrounding panoramic environments are displayed in real time on a helmet displayer or specific glasses of the user, and the user can select and move forward according to the situation. A control system can precisely control the mats so that the mats can bear the feet of the user to equivalently finish walking, running and other motions in the range of the platform, corresponding virtual scenes are changed synchronously according to the specific forwarding situations of the user to achieve the roaming effect. The user can move linearly on site on the platform and can turn left and right, particularly, real ground slope experience can be obtained through proper tilt of the platform.

The invention discloses a satellite-monitoring-based fire alarming method for a mountain power transmission line. The method comprises the following steps of: (1) acquiring the real-time data of an alarming mountain; (2) identifying a fire point; (3) establishing a power grid integrated geographic information platform; (4) positioning the fire point; (5) giving an alarm for a fire according to the ground characteristics of the fire point; and (6) making a decision about whether to publish the fire alarm or not. The step (5) specifically comprises the following steps of: (5.1) analyzing a distance between the fire point and the power transmission line; (5.2) analyzing the two ground climatic conditions of wind speed and wind direction; (5.3) analyzing a ground slope and a ground aspect; and (5.4) analyzing a ground vegetation condition. By the method, 1, information about the alarm for a mountain fire in the vicinity of the power transmission line can be timely published, so that the loss of lives and properties of the people can be reduced; 2, the method is high in feasibility and operability; 3, the method is high in alarming reliability; and 4, the method plays an important role in the maintenance of safe and stable running of a power grid.

A system and method for limiting crop loss when harvesting on sloped or rolling ground by adjusting the chaffer and / or sieve, or longitudinal sections thereof, so as to overcompensate for the ground slope so that the chaffer and / or sieve sections are actually inclined away from horizontal opposite the direction of ground slope at a selected angle. Such overcompensation increases crop harvesting efficiencies over systems that simply work to level the chaffer and / or sieve sections, without the high expenses associated with a combine having a pivoting axle.

The invention discloses a soil infiltration parameter and ground roughness measuring method. Under surge flow border irrigation, by measuring ground slope routine data and unit discharge routine data and in accordance with water advancing time and water advancing distance, soil infiltration parameters and ground roughness in different irrigation cycles can be obtained. The measuring method disclosed by the invention, by measuring the soil infiltration parameters and ground roughness under surge flow border irrigation, can be used for better guiding an actual irrigation process; and according to the measuring method, water advancing time and water advancing distance only need to be measured in the irrigation process instead of data and numerical model calculation through other complex measurement; and the water advancing time and the water advancing distance are simple and easy to measure, so that the experimental complexity is reduced.

The invention relates to an unmanned helicopter-based mining subsidence monitoring method. The method comprises the following specific steps: 1) the route of the unmanned helicopter is planned according to the position of the mining area; 2) the mining area is monitored via remote sensing equipment carried with the unmanned helicopter so as to acquire a ground image of the mining area in real time; 3) when the unmanned helicopter monitors in the second step that a crack exists on the ground of the mining area, the unmanned helicopter is informed to go down to the crack position, and crack data are collected via detection equipment carried with the unmanned helicopter-; and 4) the ground slope of the area wherein the crack is located is detected via a slope detector carried with the unmanned helicopter. When the unmanned helicopter-based mining subsidence monitoring method of the above technical scheme is adopted, the mining terrain is monitored in real time via the unmanned helicopter, related data detection is carried out on the crack possible to appear in the mining area, and thus the subsidence situation of the mining area and subsequent possible changes can be judged correspondingly.

A method for the guidance of a rotorcraft (1) in relation to a landing point (Pp) in accordance with a landing procedure. An approach route (R) is identified and an approach trajectory (T) is calculated in accordance with a ground slope (S) imposed by the approach route (R). An upstream segment (Sam) of the approach trajectory (T) is calculated through the application of a typical trajectory, as defined in accordance with the ground slope (S), the current mass of the rotorcraft (1), and a low-noise or noise-abatement criterion relating to the noise discomfort generated by the rotorcraft (1), taking into consideration a wind model (V) that represents the change in the wind between a current position of the rotorcraft (1) and the landing point (Pp). The position of the rotorcraft (1) is adjusted in proximity to the landing point (Pp) along the length of a transitional segment (St) of the approach trajectory (T), excluding, from the extension of the transitional segment (St), an application of the typical trajectory, and taking into consideration the ability of the rotorcraft (1) to perform a rapid maneuver toward a downstream segment (Sav) of the approach trajectory (T), as predefined in accordance with the ability of the rotorcraft (1) to reach the landing point (Pp) during stable flight.

The present invention provides a mobile device control method. The mobile device control method includes: acquiring a point cloud map in front of a moving direction of a mobile device; determining a connected area in front of the moving direction on the basis of the point cloud information in the point cloud map, and determining ground information according to the connected area, wherein the ground information includes ground slope information; and controlling the mobile device to move on the ground in an imitating flight manner according to the slope information. The connected area and the ground information are determined, and it is possible to better ensure that an unmanned aerial vehicle can accurately locate the slope during plant protection operations, land parcel division, land plotmeasurement, route planning, etc., to prevent the mobile device from treating the slope as an obstacle; climbing flight over a slope or small soil slope can be achieved, so that the mobile device canwork on the slope.

The invention discloses a braking method of a gear rail car, On the basis of adhering a brake device to the belt brake device, the gear rail car first receives a the brake command, the ground gradientof the line running on the gear-rail car is acquired first, the line is the gear-rail line is judged according to the ground gradient, if it is, the adhesive brake and the belt brake are started, ifnot, the adhesive brake is started. In the prior art, the braking mode of the gear-rail car is only adhesive braking, and the braking mode cannot meet the braking requirements when the gear-rail car is traveling on the ramp. The invention adopts the combination of adhesive braking and belt braking on the gear track to complete the braking. The belt braking is more suitable for ramp braking than adhesive braking, and the gear track car can reach the braking requirement on the ramp. The braking mode is selected by the ground slope of the running track, so that the gear-rail car can meet the braking requirements both on the straight road and on the ramp. The invention also discloses a braking device of a gear rail car, which has the beneficial effects.

The invention relates to modifying agent which is used to treat swelled ground landslide and a construction process. The modifying agent is prepared through dissolving polyvinyl alcohol and potassium chloride in water according to proportion, which is sprayed on the surface of swelled ground slope to form a modifying layer with certain thickness, thereby reducing the affect of water for the swelled deformation of swelled ground. The optimal weight proportion of the modifying agent is that polyvinyl alcohol: potassium chloride: dry ground is equal to 0.3:3:96.7. The advantages of the modifying agent are the two compounds are all easy to dissolve in water, calcarea lime does not need to be added, the pollution for environment can be avoided, and the construction is simple and convenient. The modifying agent can form adsorption by hydrogen bond with the surface of hydrophilic clay, can effectively inhibit swollen ground from generating crystal layer swelling, and has excellent fusion ability. And a protection layer with certain thickness can be formed on the modified slope surface, which effectively prevents water from penetrating into the inner portion of ground, thereby preventing ground swelling deformation and slope strength reduction which are caused by the water change in swelled ground, and avoiding the risk of generating swelled ground landslide.

The invention discloses a mobile robot positioning method with an artificial on-line modification function. The method comprises the following steps of: detecting and treating artificial modification events; standardizing and distributing movement parameters; treating mileage data, course angle data, pitch angle data, speed, and advance and retreat marks; calculating the location and estimating the moving postures; converting coordinates; displaying and treating. The method has the advantages that the robot position coordinates can be artificially set on a navigation chart by operators, track reckoning primary values and course angles are modified, and accumulated errors in track reckoning are eliminated in time, so that the inertial navigation is always in the short-period working state; horizontal displacement errors caused by two factors of retreat movement of a mobile robot and s non-structural ground slope are modified. Therefore, the mobile robot positioning method can meet the requirements of the mobile robot on long-time small-area navigation.

The invention discloses a construction method for assemble a cargo boom of a crawling crane through a breaking-off method. When the cargo boom is assembled on the ground at the same height with the platform where a main crane of the crawling crane is located, all boom joint units are connected sequentially through upper hinge pins and lower hinge pins starting from the root joint. When the cargo boom is assembled to the ground downhill position, a support device is placed on the ground near the downhill position and is used for supporting assembled cargo boom units, then the lower portion of the boom joint unit in the position and the lower portion of the next boom joint unit only through a lower hinge pin, and then along the ground slope, the all next boom joint units are connected sequentially through lower hinge pins and lower hinge pins. When the head position is lifted gradually to be on the same horizontal line with the root segment of the cargo boom, the upper hinge pins of the two boom joint units in the downhill position, and thus pull rods of the two boom joint units are connected in a butt joint mode. After all installation work is completed, a main lifting machine of the crane is started, and assembly of the cargo boom is completed.

The invention provides a grinding working device used for a kerb cleaner. The grinding working device consists of a grinding connecting frame assembly, a side grinding device and a horizontal grinding device. According to the side grinding device and the horizontal grinding device, moving devices of the side grinding device and the horizontal grinding device drive corresponding grinding assemblies of connecting frame assemblies to move in the horizontal direction and the vertical direction. A one-way air cylinder is arranged in the horizontal grinding device, so that a horizontal grinding assembly can achieve floating grinding. The grinding working device is also provided with a rotary location assembly, and grinding tools of the side grinding device and the horizontal grinding device can achieve exchange between a grinding disc and a steel wire brush. The grinding working device is connected with connecting supporting frames of the kerb cleaner. The grinding working device can better adapt to ground slope and the abnormal working conditions of an upper flat and a side elevation of the kerb, so that the distance between the grinding working device and the kerb is always in a best grinding state, and the effects of grinding and renovating well are achieved.

The invention, which belongs to the technical field of ground slope detecting equipment during a vehicle driving process, discloses a portable ground slope testing device and testing method. The slope of the ground is detected by using a difference method, an initial slope value is measured by a slope data detecting module, a ground slope value is obtained based on a difference between a slope measured by a double-axis tilt angle sensor in real time and the initial slope value, and a ground slope value at each time during the field vehicle driving process is recorded; a GPS terminal is used for obtaining and recording position information at each time at the field; the path of the driving process of the field vehicle is divided into a plurality of sections by starting with time t being equal to 0; and then measured real-time slope information is divided into several segments and then an average value is taken, the positions of all sections correspond to average value information of the slopes of the sections one by one, so that slopes of all sections at the field vehicle driving path are obtained. The ortable ground slope testing device and testing method can be applied to the large and small-sized motor vehicles, on-site motor vehicles, etc. widely. Compared with the traditional slope detection device, the in-field motor portable detection device enables the detection result to be true and accurate and thus has the great reference significance.

An aerator with active turf calibration of a ground sensor that provides signals to a controller relating to changes in slope of a ground surface. The controller adjusts the position of a coring head based on signals from the ground sensor. The controller determines an offset from a neutral position of the ground sensor based on signals from the ground sensor on a flat surface during aeration compared to the neutral position of the ground sensor on a flat surface from static calibration.

The invention belongs to the technical field of the internet of things, and particularly relates to a parking space state indicator based on the internet of things. The parking space state indicator comprises a base; axial and lateral irradiators are arranged in the middle of the base; high-strength protective covers are mounted on the outer sides of the axial and lateral irradiators; mounting holes are formed in the inclined surface of the base; and a separating plate is embedded in the base. Through a power supply system with a storage battery, the flexibility of distribution control is increased while the construction activity of wire slot bridging is removed; through wireless connection with a gateway or a controller, the construction activity of laying a signal transmission line is removed; through a red-green double-color indicating lamp, the characteristics of all working states are represented by using the bright and dark frequencies and various combined states of a sounder, sothat simplicity and quickness are achieved; the indicator is mounted on the ground of a parking space or over the parking space; and when the indicator is mounted on the ground, pedestrians or vehicles can be prevented from being stumbled due to the shape design of the indicator for transition with a ground slope.

The invention discloses a foundation pit sampling system capable of adapting to different soil environments. The foundation pit sampling system comprises a bottom plate, lifting bases, fixing blocks and sliding plates, wherein totally two lifting bases are arranged; the tops of the two lifting bases are arranged on two sides of the bottom of the bottom plate; totally two fixing blocks are arranged; the bottoms of the two fixing blocks are respectively fixedly connected with the two sides of the top of the bottom plate; first lead screws are in threaded connection with the two fixing blocks byvirtue of threaded holes; totally two sliding plates are arranged; one sides of the two sliding plates are respectively rotationally connected with one opposite sides of the two first lead screws. Theinvention relates to the technical field. According to the foundation pit sampling system capable of adapting to different soil environments disclosed by the invention, by respectively elongating twoelectric rods, the two lifting bases can ascend or descend by different heights, so that the bottom plate is positioned in a horizontal state, the ground slope influence can be canceled, the samplingoperation of rough ground is met, and the system is applicable to sampling operations of different functional soil environments.

The invention relates to an arid desert region soil engineering slope bandicoot-caused damage prevention and control method. Reinforced concrete grid beams are embedded into a slope foundation layer, and sand gravels are filled in the reinforced concrete grid beams to destroy bandicoot nidification environments so as to achieve slope surface bandicoot-caused damage prevention and control effect. The method is simple, convenient, ecological and long-acting. According to ecological habits, living environments and other characteristics of levee slope bandicoots, a slope surface layer changed foundation structure is adopted, and a loose earth's surface structure which does not facilitate bandicoot nidification is created so as to achieve the purpose of effectively controlling damage caused by the levee slope bandicoots. A concrete grid beam structure is constructed on the ground slope to reinforce a slope soil body and ensure the slope stability. Sand gravel fillers are filled into concrete beam grids so as to inhibit bandicoot nidification and reduce the erosion scouring effect of rainwater. By means of the method, the problem that the bandicoot-caused damage prevention and control effect in the desert environment is low is solved, the ecological environmental protection requirements of a large canal system for slope bandicoot-caused damage prevention and control are met, and technical support is provided for bandicoot-caused damage prevention and control of arid desert region soil engineering facilities.

The invention discloses a robot hill climbing driving force control device, and specifically relates to the field of robots. The robot hill climbing driving force control device comprises a traction head, a box body is movably connected with one side of the traction head, and a traction gear is arranged at the bottom of the traction head; and a driving gear and a driven gear are arranged at the bottom of the box body, the outer sides of the driving gear and the driven gear are fixedly connected with fixed gears, and a driving motor is arranged on the side, away from the fixed gears, of the driving gear, and a driving motor output shaft is connected with the driving gear in a transmission mode. According to the robot hill climbing driving force control device, the slope gradient of the ground is sensed by a photoelectric sensor, when the slope gradient reaches a set value, an electric pushing rod pushes a climbing mechanism to descend, a caterpillar track contacts the ground, the friction force is increased, and the fixed gears mesh with a first rack ring so that the driving gear drives a driving disk, movement of the caterpillar track is convenient, when climbing, a single-chip microcomputer controls over a variable frequency speed regulator, rotating speed of the driving motor is limited, speed of a robot is decreased, the robot is prevented from tipping over, wearing of a device is reduced, and in flat road section, the driving gear and the driven gear pull the box body to increase the operating speed of the robot.

The invention provides a building ground lightweight dry mixed material, and a preparation and an application method thereof. The building ground lightweight dry mixed material comprises aggregates and powder, the aggregates are polystyrene foam particles, and the powder comprises cement, and also comprises one or more of sands, a mineral admixture and an additive. The building ground lightweight dry mixed material has the advantages of simple components, easily available raw materials, and light weight. The building ground lightweight dry mixed material can be used to construct ground cushions or ground slope making layers, and the obtained ground cushions or ground slope making layers have the advantages of light weight, shock resistance, heat insulation, sound insulation and stability.

The invention discloses a construction method of a single pile vertical anti-pull static load test device, and belongs to the field of construction inspection. The construction method of the single pile vertical anti-pull static load test device sequentially comprises the following steps that inclinometer casings are tied symmetrically to the curved neutral surface, located on a pile body, of a to-be-tested pile reinforcement cage; reinforcement meter are symmetrically arranged on the tensioned and pressed main reinforcements away from the neutral axis; pile side soil pressure boxes are symmetrically arranged on the two pairs of force surfaces of the to-be-tested pile, and pile front side soil pressure boxes are distributed in the surface slope direction of the to-be-tested pile; digital readout displacement meters are mounted on the two sides and the middle part of the force surfaces of the to-be-tested pile, and at the same time the digital readout displacement meters are mounted above the force surfaces of the to-be-tested pile; a reaction wall is preset on one side of the to-be-tested pile, and a jack is mounted between the reaction wall and the to-be-tested pile; and a low speed load maintenance method is adopted. According to the construction method of the single pile vertical anti-pull static load test device, the potentials of a foundation and a rock and soil body is fully exerted, or safety of engineering design is improved, and the high efficiency of the foundation of a electric transmission line iron tower foundation is realized.

The embodiment of the invention provides a ground slope calculation method, device and equipment and a storage medium. The method comprises the steps that: acquiring detection value of detection equipment (2) arranged on a movable platform (81) for the ground slope; acquiring a state parameter of the movable platform (81) detected by an inertial measurement unit (3); and determining a ground slopevalue according to the detection value of the ground slope detected by the detection equipment (2) and the state parameter of the movable platform (81). The ground gradient value is determined according to the detection value of the detection device (2) for the ground slope and the state parameter of the movable platform (81), so that the accuracy of ground gradient value measurement can be improved, and a more stable climbing obstacle avoidance function can be realized for the movable platform.

The invention discloses a sheep pen dung cleaning device and method capable of realizing dry and wet separation. The device comprises dung cleaning ditches and dung scraping plates; the dung cleaning ditches are two parallel rectangular long-strip pits; grounds of the two long-strip pits are set to be same-direction slopes with the gradient being 0.2%, a dung accumulating pond is arranged at the lowest ends of the grounds of the two parallel long-strip pits, and a urine ditch is arranged at the highest ends of the grounds of the two long-strip pits; motors of the dung scraping plates are arranged at two ends of the two parallel long-strip pits, each long-strip pit is provided with a dung scraping dustpan, and the two dung scraping dustpans in the two parallel long-strip pits are dragged by the motors through a chain to move along the grounds of the long-strip pits; the dung cleaning ditches are further provided with liquid collecting pipes; each liquid collecting pipe is laid in the center of the ground of the corresponding long-strip pit in the length direction of the long-strip pit; and the gradient of the liquid collecting pipes is 0.2% and is in the inclination direction opposite to that of the gradient of the grounds of the long-strip pits. The device is simple in structure, dung cleaning can be conducted in a dung-urine separation manner, the working efficiency is high, and convenience is brought to subsequent treatment of dung.

The invention discloses a crowd risk degree detection method, device and equipment. The method comprises the steps of obtaining the region data of a target region and the crowd data of the target region at a target moment, and enabling the region data to comprise the area, the ground slope and the ground slope length, and enabling the crowd data to comprise the number of crowds, an included angle between a crowd flow direction and a gradient descending direction and average walking speed in the crowds, according to the region data and the crowd data, determining a crowd risk degree of the target region at the target moment, and when the crowd risk degree meets a preset condition, outputting alarm information. By considering the influence of the ground slope, the ground slope length, the average walking speed in the crowd and the included angle between the crowd flow direction and the slope descending direction on the crowd risk degree, the crowd risk degree detection precision of the crowd can be improved, so that accurate early warning is performed, and the occurrence of stampede events is effectively prevented.

The invention discloses a power chassis for orchards on mountains and hills. The power chassis comprises a rack, an engine, a gearbox, a left wheel set, a right wheel set, a height difference adjusting device and a ground clearance adjusting mechanism. The engine and the gearbox are connected to the upper portion of the rack, the left wheel set and the right wheel set are connected to the two sides of the rack respectively, and the height difference adjusting device is connected to the left wheel set and the right wheel set through a parallel four-connecting-rod mechanism. The ground clearance adjusting mechanism comprises a ground clearance adjusting oil cylinder fixedly connected to the gearbox, and the axial stretching end of the ground clearance adjusting oil cylinder is connected to the height difference adjusting device. The height of left wheels and right wheels of the power chassis can adapt to the ground slope, the ground clearance can be adjusted, the passage capacity is good, and the power chassis is especially suitable for working under short fruit trees and on uneven grounds. In the work process, when the chassis walks on a cross slope, the height difference adjusting device adjusts the height difference of the left wheels and the right wheels immediately, and the chassis is restored to the horizontal state.

The invention discloses an air-to-ground slope distance measuring method applicable to phased array radar. The method includes: according to the angle, given by a system, of to-be-measured points, controlling an antenna beam to pitch a certain small-angle area at the to-be-measured point and in the direction of the to-be-measured point to select multiple angle control points, and performing AGR (air-to-ground ranging) on each measuring point to obtain a slope distance value, wherein the interval between every two control points is larger than one beam granularity; hypothesizing that the groundof a small region is flat due to the fact angle detection is small according to the angle differences of the control points and the to-be-measured points, and using carrier height, antenna pointing information and space geometry relation to calculate the slope distance of the to-be-measured points according to the slope distance and angle differences of the control points; averaging slope distance data, obtained by approaching the different control points, of the to-be-measured points to obtain the slope distance values of the target to-be-measured points; using three different working frequency to average the measuring results. By the method, error randomization of multiple measuring is achieved, and slope distance measuring errors can be reduced.

The invention discloses a critical excavation length determining method of a thick sand layer gentle slope inclined shaft open excavation method and a sub-surface excavation method. The method is characterized in that open channel excavation length is calculated according to inclined shaft inclination angle, ground gradient, open channel side slope gradient, shaft excavation height, top plate safety thickness and plowing layer thickness; inclined shaft excavation grading angle and excavation inclination length are used as variable parameters to respectively calculate to obtain the building cost functions of each of the open excavation method and the sub-surface excavation method; the critical excavation length of inclined shaft open excavation and sub-surface excavation is determined by analyzing different design parameter indexes and comparing and analyzing the building cost functions. The method has the advantages that the critical excavation length of the open excavation method and the subsurface excavation method is determined from angles such as engineering mechanics and project building cost, project safety requirements can be satisfied, project building cost is effectively controlled at the same time, project benefits are increased, and theoretical basis is provided for determining the critical excavation length of the thick sand layer gentle slope inclined shaft open excavation method and the sub-surface excavation method.

The invention provides a lifting machine suitable for the slope ground and belongs to the technical field of lifting devices. The lifting machine comprises a supporting platform, a supporting frame, four-rod adjusting mechanisms and supports. One side of the supporting platform is connected with the supporting frame. The two corners of the other side of the supporting platform are connected with the four-rod adjusting mechanisms correspondingly. The supporting frame and the four-rod adjusting mechanisms are connected through supporting rods. The grounding ends of the supporting frame and the four-rod adjusting mechanisms are connected with the supports correspondingly. The overall height is changed and the inclination angle of the supporting platform is adjusted by adjusting the supportingangle of the four-rod adjusting mechanisms. When the lifting machine conducts aloft work on the slope ground, the hinged four-rod mechanisms are elevated or lowered by adjusting screw rods and changing the length of the diagonal lines of rhombuses to adapt to the ground slope to enable the upper portion of the lifting machine to be in a stable horizontal state, and then the lifting machine can bein a working state. The lifting machine is simple in construction operation, and potential safety hazards in construction are reduced. The lifting machine has the characteristics of being stable, safe and high in automation degree and can stable go up and down on the slope ground.