51results about How to "Low terrain requirements" patented technology

The invention discloses an onboard panorama monitoring system of an unmanned aerial vehicle. An aerial remote sensing image is transmitted to the ground in real time, and then the real-time panorama remote sensing image monitoring system is generated. The system is composed of the unmanned aerial vehicle, a remote sensor subsystem, an information transmission and ground safeguard subsystem and a panorama stitching treatment subsystem, wherein the unmanned aerial vehicle carries a remote sensor to acquire remote sensing information, an information transmission device in the information transmission and ground safeguard subsystem is used for transmitting the state of the unmanned aerial vehicle, the state of a pan-tilt, the state of the remote sensor and control signals and downloading images, a ground safeguard device in the information transmission and ground safeguard subsystem is used for transporting and storing system devices and providing comprehensive ground safeguard for the system devices, and the panorama stitching treatment subsystem is used for achieving automatic panorama stitching of downloaded image information and real-time monitoring. The system ensures that the monitoring device can be used by nonprofessional users conveniently, is easy to operate, can be applied to various industries, and has the advantages that deployment is convenient, maneuverability is high, and the real-time property of information is high.

The invention belongs to the technical field of unmanned aerial vehicle defense, and particularly discloses an unmanned aerial vehicle comprehensive management and control system for the petroleum andpetrochemical field. The system is composed of a comprehensive situation display module, a multivariate information acquisition module, a threat assessment alarm module and a command and dispatch module. The comprehensive situation display module is a comprehensive information display platform based on a GIS geographic information system, and can comprehensively display managed and controlled geographic information resources, unmanned aerial vehicle situation information, flight trajectories, commanding and dispatching and police affair and police affair conditions. The multivariate information acquisition module is composed of a TDOA radio detection system and a grid radio passive detection device, the threat assessment alarm module is composed of an unmanned aerial vehicle target database and an intelligent analysis processing module, and the command and dispatch module is composed of a command control system and a satellite navigation decoy system. The comprehensive management andcontrol system does not cause any influence on the petroleum and petrochemical field, can display the comprehensive management and control condition of the regional unmanned aerial vehicle in real time, is convenient for commanding and dispatching, and solves the technical problem of unmanned aerial vehicle management and control in the petroleum and petrochemical field.

The invention discloses a circulating transportation mechanism. The circulating transportation mechanism is characterized by comprising two track modules parallel to each other, a first switching module and a second switching module, wherein the first switching module and the second switching module are symmetrically arranged at the two opposite ends of the track modules. The switching modules ofthe transportation mechanism have a switching function, and a transportation trolley can move back and forth between the two track modules through the switching modules, so that the circulating transportation function of the transportation trolley is achieved, and efficient operation of a production line is effectively guaranteed. In addition, the structural design shaped like a Chinese character'hui' is adopted by the transportation mechanism, the switching modules are arranged perpendicular to the track modules, and under the equivalent transportation capability, the occupied area of the transportation mechanism is smaller than that of a traditional circular-arc-shaped transportation track, so that the space resource waste problem of a production workshop can be effectively solved. Besides, the requirement of the transportation mechanism on the landform of the production workshop is low, and the circulating transportation mechanism is high in applicability and can be conveniently installed in various production workshops as needed.

An ecological hydro-junction facility applicable to river and lake communication comprises a submerged weir, water release gates, blow sand gates, gate piers, a ship lock, a guide wall and gate hoists. In a flood season, the water release gates and the blow sand gates are opened to enable part of river water to flow into a lake region and relieve the downstream flood prevention pressure, fishes migrate through the gates to lay eggs and find foods, and the gates are closed after the flood season ends. During the dry period, the blow sand gates are opened to feed water to the downstream to washsediment deposited in the lake region to the downstream and guarantee water abundance of the lake region. Exchange of a water body of the lake region and the river water is realized through the submerged weir throughout the year for fish swimming. The ecological hydro-junction facility is a gate and weir combined allocation open type regulation and control junction. While the defects of a hydro-junction are overcome, the problems of inadequate bearing capacity of water resources and water environments of river-communicating lake regions during the dry period and the like are effectively alleviated.

The invention provides a base reinforcing and supporting device for constructional engineering, and relates to the technical field of constructional engineering. The base reinforcing and supporting device based on constructional engineering comprises a wall body and fixing bases, the fixing bases are arranged below the two sides of the wall body respectively, the ends, close to the wall body, of the two fixing bases are rotationally connected with side wall plates correspondingly, and the middles, the upper ends and the lower ends of the two side wall plates are provided with double round holes correspondingly; and two fastening rods penetrate through the positions, corresponding to the double round holes, of the wall body, fastening bases are arranged at the positions, corresponding to the double round holes, of the sides, away from the wall body, of the two side wall plates, and transverse ribs are fixedly connected to the middles of the multiple fastening bases. The fastening rods and the fastening bases are matched with the reinforcing plates and the reinforcing ribs, so that the whole two sides of the wall body can be stably reinforced, the reinforcing stability is improved, and the practicability of the base reinforcing and supporting device is enhanced.

The invention provides a slope ecological restoration spray-seeding anti-impact agent. The slope ecological restoration spray-seeding anti-impact agent is prepared from the following components in parts by weight: 40 to 90 parts of low-alkalinity sulfoaluminosilicate cement, 0.3 to 2 parts of organic gel, 0.4 to 4 parts of cellulose and 0.3 to 5 parts of a pH regulator, wherein the pH regulator is ammonium salt and organic acid, and the mass ratio of ammonium salt to the organic acid is (1:1)-(5:1), the organic gel is polyvinyl alcohol (PVA) and polyacrylic acid (PAA), and the mass ratio of the polyvinyl alcohol (PVA) to the polyacrylic acid (PAA) is (1:1)-(8:2). After 5%-20% of the composition is added into a spray-seeding matrix, the air permeability, cohesiveness, water-retaining property and rain wash resistance of soil can be improved, germination and growth of plants can be promoted, and the spray-seeding anti-impact agent is low in material price and environmentally friendly in performance.

The invention relates to a ground anchor deck type pedestrian bridge structure capable of being assembled and a construction method. The structure comprises ground anchor foundations, bearing cables,truss units, a bridge deck system and stabilizing cables; the bearing cables are flexible steel cables, and two sides are anchored on the ground anchor foundations; the truss units are of prefabricated steel structures, the lower ends of overall trusses formed by assembling the truss units are supported on the bearing cables, and the truss units and the bearing cables form string structures; the stabilizing cables are arranged on two transverse sides of the bridge floor to guarantee the torsional rigidity of the structure; the structure system adopts a non-bracket construction method and comprises the following steps: (1) constructing the ground anchor foundations; (2) mounting the bearing cables; (3) assembling the steel trusses; (4) constructing the bridge deck system; and (5) mounting the stabilizing cables. Compared with a traditional cableway bridge, the structural system is high in rigidity, the freedom degree of bridge deck linear design is high, and vibration response and pedestrian passing conditions can be improved; a lateral wind-resistant cable is not needed, and the requirement for the bridge position terrain is low; temporary brackets are not needed during construction, main components are prefabricated in factories, construction is convenient, and quality is easily guaranteed.

The invention discloses a large-sized water bag device for collecting rainwater. The device comprises a floating ball layer, a sunshade thin film layer and a waterproof thin film layer; the waterproofthin film layer is laid under water; the sunshade thin film layer covers the upper portion of the water; the floating ball layer is attached under the sunshade thin film layer and comprises a plurality of floating balls, and water leakage holes are formed in the portions, among the floating balls, of the sunshade thin film layer. The device has the advantages that the structure is simple, the construction cost is low, a lot of operation of digging and hardening on the ground is not needed, a large amount of cement steel is not needed, and large equipment does not need to enter a factory. Theshape of a reservoir (a water bag) can be designed by fully utilizing topographical features, the diversity is high, the requirements for terrains are low, the reservoir can be constructed beside mountains according to the terrain, and the shape is diverse. The water evaporation loss is low, and an important significance is provided for keeping the water level under high-temperature weather. The reservoir is closed and opaque, debris is prevented from falling into the reservoir, algae breeding is inhibited, the danger that people and animals fall into the reservoir is reduced, and the purposeof periodic removal of sediments is achieved. The service life of the product is prolonged through light reflection of aluminum foil.

The invention relates to the technical field of civil engineering, in particular to a construction method for solving stop rotation of a shield cutter head by grouting reinforcement and an internal support method. The method is suitable for fault treatment of the locking of a cutter head of a earth pressure balance shield machine and the construction of the similar shield construction which needsto open a cabin and enter the interior of an earth cabin for fault detection treatment. The construction method for solving stop rotation of the shield cutter head by the grouting reinforcement and the internal support method is characterized by comprising the following steps of 1, chemical grout grouting reinforcement soil body construction and 2, construction scheme for inspection and treatmentof personnel entering cabin. According to the construction method for solving stop rotation of the shield cutter head by the grouting reinforcement and the internal support method, the grouting reinforcement and the internal support method is adopted to enter the inner side of the cutter head, a traditional construction shaft method is replaced, construction enclosing piles, a support system and earthwork excavation are avoided, the construction period is effectively saved, and the material and mechanical costs are reduced.

The embodiment of the invention discloses a vortex flow resonance oscillation lifting type jujube picking machine. The vortex flow resonance oscillation lifting type jujube picking machine comprises astring bag device, a collecting device, a resonance oscillation device and an airflow generating device. The string bag device comprises a jujube collecting bottom disc, supporting rods, a fold mesh,a crank rocker mechanism and a string bag driving motor. The collecting device comprises a conveying belt and a collecting box. The conveying belt connects the collecting box and the jujube collecting bottom disc. The resonance oscillation device comprises a bracket and a pair of resonance oscillation air cylinders. The bracket is connected with the jujube collecting bottom disc. The resonance oscillation air cylinders are connected with the bracket and oppositely arranged above a truck groove. The airflow generating device is arranged on the bracket, and comprises a blower and an angle adjusting mechanism connected with an air outlet of the blower. Compared with the prior art, the vortex flow resonance oscillation lifting type jujube picking machine has the beneficial effects that requirements for topography by the vortex flow resonance oscillation lifting type jujube picking machine is low, the problem that large machinery can not be used is solved, manual picking is replaced, jujube picking efficiency is improved, and labor intensity of workers is lowered.