51results about How to "Meet observation needs" patented technology

The invention discloses a three-dimensional display device of a full-view visual field based on a high-speed projector. The device comprises a high-speed projector, a transmission type directional diffusing screen, a reflector system, a rotation device, a sensor, a rotation synchronous detection module and an upper computer. The high-speed projector projects combined images of the horizontal 360-degree full-view visual fields of three-dimensional objects on the reflector system rotating at high speed, and the images are projected on the fixed cylindrical transmission type directional diffusing screen after the images realize the turning of light paths by the reflector system. The transmission type directional diffusing screen can control the divergence angle of outgoing light, the left eye and the right eye of an observer see images with different visual angles, and the three-dimensional display of the three-dimensional objects on the full-view visual field is realized. The rotation synchronous detection module detects a rotation signal, is communicated with the upper computer and ensures that the positions of the combined images and the position of the rotating reflector system are synchronous. The invention can realize that both eyes of the observer see images with binocular parallaxes in different positions, thereby realizing the three-dimensional display.

The invention belongs to the field for measuring a friction force and wearing of a higher pair contact lubrication film on the condition of different slide-roll ratios, and particularly relates to a measurement device for a friction force and a wearing process of a lubrication film on the condition of different slide-roll ratios. The main structure of the measurement device comprises a supporting platform, a disc driving device, a ball driven loading rotating device, a rotating device, a wearing measuring device, a translation device, a speed measuring device and a sensor fixing device. The rotating device is arranged below the ball driven loading rotating device and is used for supporting and driving the ball driven loading rotating device to rotate so that a steel ball on the ball driven loading rotating device rotates to a glass plate on the wearing measuring device, and then the steel ball is directly used for performing topography measurement on a wearing surface. The measurement device has advantages of ingenious integral design concept, reasonable layout between devices, multiple functions, high flexibility in switching, high convenience in use, effective measurement for the frictional force and the wearing process of an oil film, high practicability, environment-friendly application environment and wide market prosect.

The invention discloses a moving target single-satellite task planning method based on a constraint satisfaction genetic algorithm, which comprises the following steps of: firstly, calculating a visible time window according to model characteristics and constraints of a satellite and an observed target to form an initial task sequence; Secondly, constructing an objective function and a genetic algorithm model, and introducing a conflict elimination operator to calculate a conflict sequence; Thirdly, optimizing and solving the task sequence to obtain a conflict-free task sequence meeting the constraint; And finally, calculating a satellite task observation scheme and a satellite maneuvering angle. According to the method, the satellite earth observation efficiency can be improved, limited satellite resources are reasonably utilized, and the capture observation task of the moving target is completed.

The invention discloses conducting resin for a scanning electronic microscope and a preparation method thereof, which belongs to the technical field of resin composite materials. The conducting resin adopts epoxy resin as a base material, ethylene diamine as a curing agent, and tin-silver-copper powder or silver-coated copper powder as conductive particles, and comprises the following components by mass percent: 32-34% of epoxy resin, 3-4% of ethylene diamine and 62-65% of tin-silver-copper powder or silver-coated copper powder. Ethylene diamine is added into epoxy resin and simultaneously uniformly stirred; the conductive particles are added and stirred at the same time till the conductive particles are completely uniformly dispersed and glue-like mixture reaches a substantially cured degree; the glue-like mixture is added into a die; and the glue-like mixture is dried and cured at room temperature, and then samples are taken out. The conducting resin can fully meet the requirements of SEM (scanning electron microscope) observation.

The invention relates to an observation box for the indoor behavior of insects and application thereof. A box door is arranged on one lateral surface of the box body; an observation window is arranged at the upper-half part of the other lateral surface of the box body; muffling felts are respectively arranged in parts of the box body except the part of the observation window; a layer of red copper mesh is also arranged in the box body; the red copper mesh in the box body is wrapped on the muffling felts except for the red copper mesh arranged at the observation window, which is made into a window curtain shape; infrared integrated machines are respectively arranged on four sides in the box body, are connected with an external computer and are controlled by a cloud desk to track, shoot, observe and record the behaviors of the insects from four angles. According to the observation box, the demands on acquisition of chirp signals of the insects and the observation of other various behaviors are met and the disturbance of outside electronic waves and noises can be effectively shielded; conditions in the box are stable and controllable; the observation box is matched with an infrared camera, daytime and nighttime behavior observation is carried out on the premise of not disturbing normal behaviors of the insects; the observation box is a good tool for researching the insect ethology.

A method for defect searching of a power transmission lines of multi-rotor unmanned aerial vehicles is characterized in that two unmanned aerial vehicles are adopted to perform flight operation simultaneously, one unmanned aerial vehicle is an operation unmanned aerial vehicle for normal tour, and the other unmanned aerial vehicle is positioned over or at the horizontal orientation of the operation unmanned aerial vehicle and an observed object. When prime lenses are used for the unmanned aerial vehicles, the space distance of the unmanned aerial vehicles should be kept between 3 m and 12 m; and when zoom lenses are used for the unmanned aerial vehicles, the space distance of the zoom lenses should be maintained between 8-20 m. The method has the advantages that through repeated tests, we find that the endurance of the observing unmanned aerial vehicle is more than that of the operation unmanned aerial vehicle by more than three minutes; after the operation unmanned aerial vehicle takes off and is close to the line stage, the observing unmanned aerial vehicle should be above the operation unmanned aerial vehicle and a line to perform observation, and after approaching the line, the observing unmanned aerial vehicle should be at the conversion orientation so as to meet the observation requirements of the operation unmanned aerial vehicle in other orientations.

The invention discloses a method for corroding the crystal grain morphology of the surface of a nickel-based high-temperature alloy. In a process that a corrosive liquid is used to corrode the surfaceof the nickel-based high-temperature alloy, the corrosive liquid and nickel-based high-temperature alloy undergo supersonic wave vibration. The method is simple and easy to operate. According to themethod, formation of a passivated film is prevented in a corrosion process of a nickel-based high-temperature alloy, diffusion of the corrosive liquid and the corrosion reaction product is quickened,and the corrosion efficiency and effect of the crystal grain morphology of the surface of a nickel-based high-temperature alloy are significantly improved.

The invention provides a method and a device for detecting trace nitrogen oxide in atmosphere, and solves the problem of large measurement deviation of the existing method and device. The method comprises the following steps: collecting to-be-detected atmosphere to obtain collected gas; collecting the to-be-detected atmosphere, and converting nitrogen oxide in the to-be-detected atmosphere into peroxyacetyl nitrate to obtain converted gas; separating and detecting peroxyacetyl nitrate in the conversion gas and the collection gas respectively to obtain first concentration and second concentration of peroxyacetyl nitrate respectively; and calculating the concentration of nitrogen oxide in the atmosphere to be detected according to the first concentration and the second concentration of peroxyacetyl nitrate. The device for detecting the trace nitrogen oxide in the atmosphere is used for the method. According to the invention, high-sensitivity detection of trace nitrogen oxide in atmosphere can be realized.

The invention discloses a medical imaging diagnosis auxiliary device. The medical imaging diagnosis auxiliary device comprises a pedestal, a bottom end of the pedestal is movably connected with a universal wheel, and the universal wheel is distributed on the pedestal in the shape of a ring-shaped array, a ring tube is fixedly mounted on an upper end of the pedestal, and a first hydraulic cylinderis embedded on a base surface of the ring tube, and a free end of the first hydraulic cylinder stretches into a tube cavity of the ring tube. In the medical imaging diagnosis auxiliary device, a lightbox is arranged on a rotatable first disk block, moreover, the first disk block is provided with a plurality of display screens which surround the light box and are in the shape of a ring-shaped array, main analyzers and hearers of a radiograph film respectively can be at each side of the light box and the display screens, thus, when the light box is used for a multi-party conference or teaching,satisfying an effect that observers at each angle can simultaneously and effectively observe is guaranteed. The medical imaging diagnosis auxiliary device is provided with the pedestal comprising theuniversal wheel, and periphery of the pedestal is provided with a liftable locating cover, thus, movement or locating of the medical imaging diagnosis auxiliary device can be controlled flexibly, meanwhile, a net is arranged on a threaded disk, so, an effect of temporarily collecting and placing the radiograph film is realized.

The invention discloses a microcirculation imaging lens. The microcirculation imaging lens comprises an object surface, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixthlens, a seventh lens, an eighth lens, a diaphragm, a ninth lens, and an image surface which are sequentially distributed from an object side to an image side along an optical axis; the object side surfaces and image side surfaces of the first lens and the second lens are planar; the third lens and the fourth lens are cemented to form a first cemented lens group; the image side surface of the thirdlens is cemented to the object side surface of the fourth lens; the fifth lens and the sixth lens are cemented to form a second cemented lens group; the image side surface of the fifth lens is cemented to the object side surface of the sixth lens; the seventh lens and the eight lens are cemented to a third cemented lens group; the image side surface of the seventh lens is cemented to the object side surface of the eighth lens; and the ninth lens is a plano-convex lens. The imaging clarity of the imaging lens of the invention can be improved; and the imaging lens of the invention can meet therequirement of sublingual microcirculation observation.

The invention relates to the technical field of total stations, and discloses a total station simulation system. The problems that a total station simulation system in the current market is complex inhardware structure, high in production cost, not beneficial to maintenance, inconvenient to operate, poor in utilization efficiency, prone to being affected by the environment in the using process and incapable of simulating various observation environments are solved. The total station simulation system comprises scene simulation software and total station hardware, wherein the scene simulationsoftware is in data connection with pipe level simulation software and control panel simulation software; the control panel simulation software is in data connection with sensor data collection software; and the sensor data collection software is in data connection with a voltage value and an angle value. The total station simulation system has the advantages that the hardware structure is simplified, the cost is low, maintenance is convenient, operation is easy, meanwhile, the observation process is not affected by the environment, and various observation scenes can be simulated.

A closed gun tower for a lightning protection vehicle comprises a protective cover with a closed upper end, the protective cover is formed by folding bulletproof steel plates arranged on the periphery to form a cavity, observation windows are arranged on the bulletproof steel plates on the two sides of the protective cover, a shooting opening for a machine gun to stretch out is formed in the front end of the protective cover, and a receding hole for people to pass through is formed in a bottom plate at the lower end of the protective cover. A machine gun mounting seat is arranged on a bottom plate of the protective cover between the receding hole and the shooting opening, the bottom plate of the protective cover is connected with a vehicle body of the lightning protection vehicle through a rotary seat ring, so that the protective cover can integrally rotate by 360 degrees, a cavity of the protective cover is communicated with the interior of the lightning protection vehicle, and a shooter on the lightning protection vehicle can be protected in all directions. The head and the body of a shooter are prevented from being exposed, the casualty rate of the shooter is reduced, and the protection performance of the lightning protection vehicle is improved.

The invention discloses a low-voltage cabinet with a visual temperature rise state, and the cabinet comprises a cabinet body, a front cabinet door, a rear cabinet door and a conductor copper bar; a main bus visual hole is formed in the front cabinet door at the uppermost bus chamber, and a cabinet rear copper bar visual hole is formed in the middle of the rear cabinet door; the cabinet rear copperbar visual holes and the main bus visual holes are provided with high-strength toughened glass. The conductor copper bars are sleeved with thermosensitive color-changing sleeves, and the thermosensitive color-changing sleeves are located at the positions close to the lap joint ends of the conductor copper bars. According to the invention, the specific part of the conductor copper bar is sleeved with the thermosensitive color-changing sleeve, and the observation hole is formed in the corresponding position of the cabinet door, so an inspector can obtain the temperature rise state in the cabinet through visual observation outside the cabinet, and meanwhile, the high-strength toughened glass not only meets the observation requirement, but also ensures the structural strength of the cabinet body.

The invention discloses a virtual camera lens parameter processing and updating method and device, equipment and a medium, and the processing method comprises the steps: obtaining a target parameter level of a lens in response to a lens parameter updating trigger event; acquiring a first standard lens parameter group and a second standard lens parameter group according to the target parameter grade and a plurality of preset standard lens parameter groups; determining an updated lens parameter according to the target parameter level, the first standard lens parameter group and the second standard lens parameter group; wherein the size of the parameter grade represents the distance of the lens. According to the method, by setting the standard parameter grade and the corresponding standard lens parameter, the lens parameter is limited within a certain range, so that the updated lens parameter obtained after the lens is adjusted is within the limited range, and the observation requirement of a user is met. The method can be widely applied to the technical field of virtual cameras.