64results about How to "Strong environmental adaptability" patented technology

The invention discloses a laser-point cloud based method for extracting a mountainous road by use of a three-dimensional characteristic description model. The method comprises the steps of: preliminarily filtering non-ground points by using the information of times of laser-point cloud echo signals, and carrying out ground point filtering to obtain a ground point set; constructing the three-dimensional characteristic description model to extract mountainous road characteristics; establishing a grid index for the ground point set, carrying out local surface fitting, and solving a tangential slope value of a corresponding curve surface of a grid center point and endowing the value to the grids; calculating eight-directional slope differences of each grid and eight adjoining grids; determining a corresponding relation curve between the local slope differences and slope difference weights; introducing the eight-directional slope differences of the grids into the curve and summarizing the obtained weights to obtain a characteristic factor of each grid; determining a characteristic factor threshold value to filter non-road grids, and obtaining an initial road point set; setting a threshold value interval to filter the initial road point set, and obtaining a candidate road point set; and carrying out rasterization and binaryzation on an area where the candidate road point set is located, and obtaining a refined mountainous road.

The invention provides an unmanned aerial vehicle emergency rescue high-altitude base station comprising a bearing platform, a wireless communication system and a backhaul device, wherein the bearing platform is an unmanned aerial vehicle, the wireless communication system and the backhaul device are connected with each other and are loaded on the mooring unmanned aerial vehicle, the wireless communication system comprises a RRU module communication device and an antenna, the RRU module communication device is in wireless connection with a user through the antenna, the backhaul device comprises a BBU module communication device and a backhaul system, The RRU module communication device establishes a data transmission connection with the BBU module communication device, and the BBU module communication device is in data transmission connection with a machine room PTN through the backhaul system. The unmanned aerial vehicle emergency rescue high-altitude base station has the advantages of low cost, simple operation, large bearing capacity, long air residence time and high environmental adaptability. The unmanned aerial vehicle emergency rescue high-altitude base station can quickly rise in hash environments, quickly start a communication station and can perform remote operation. The unmanned aerial vehicle emergency rescue high-altitude base station serves as an emergency communication station to meet different emergency relief scenarios, such as emergency relief, security anti-terrorism, hot spot coverage and other communication needs.

The invention relates to a coal mine safety management system and mainly solves the problem that management systems can not communicate with environmental information under the condition of instable communication in coal mine environments in the prior art. The coal mine safety management system comprises a subsystem interface module, a data sharing module, a linkage plan database, a linkage plan graphical compiling module, a linkage plan scheduling execution module, a linkage record querying module and an environmental information acquisition module. By the aid of the method, when a single system in a mine breaks down or abnormal conditions are detected, associated subsystems can be controlled to take corresponding actions according to a preset linkage plan, so that the comprehensive performance of all subsystems in the mine is improved, emergencies can be coped with efficiently, and the coal mine safety production efficiency is improved.

The invention discloses a high-density low-detonation velocity explosive. The explosive consists of the following components in parts by weight: 14-16 parts of cyclonite, 64-66 parts of barium nitrate, 15-16 parts of binder, 4-5 parts of plasticizer and 0.5-0.7 part of curing agent; and grain composition is carried out on the cyclonite, so that density uniformity is improved. The invention further discloses a preparation method for the explosive, wherein the preparation method comprises four steps of preparing materials, mixing, treating in vacuum, casting, heating and curing. The explosive disclosed by the invention has higher density, lower detonation velocity, and has good adaptation to environments such as temperature impact, high temperature, high pressure, and the like.

The invention discloses a molecular scattering Doppler lidar for coherent optical paths, comprising a tunable pulse laser, first and second optical fiber beam splitters, a beam expander, a polarization beam splitter, a lambda / 4 wave plate, a transmission telescope, a converging lens, and a laser frequency measuring device. The tunable pulse laser, the first optical fiber beam splitter, the beam expander, the polarization beam splitter, the lambda / 4 wave plate and the transmission telescope are connected in sequence. A port A of the second optical fiber beam splitter is connected with the first optical fiber beam splitter, a port B is connected with the polarization beam splitter through the converging lens, and a port C is connected with the laser frequency measuring device. The molecular scattering Doppler lidar disclosed by the invention has the advantages of low development cost and small size.

The invention belongs to a natural light-based tunnel lighting system, comprising a solar energy light reducing gallery and an LED (Light-Emitting Diode) lighting transition section; a solar power generation system of the solar energy light reducing gallery directly supplies LED lamps of the LED lighting transition section, the solar energy light reducing gallery comprises a gallery bracket, thin film solar power generation panels embedded in the top of the gallery bracket, ventilation sound absorbing panels embedded in the upper part and lower part of the side surfaces of the gallery bracket and tempered glass embedded in the middles of the side surfaces of the gallery bracket, and the light transmittance of the thin film solar power generation panels is reduced along with the approach of the gallery to a tunnel port according to a tunnel entrance and exit adaptive curve; and the LED lamps of the LED transition section are connected with the thin film solar power generation panels of the solar energy light reducing gallery. The lighting system integrates gallery light reducing and solar power generation technologies, adopts low-cost solar thin films suitable for a road tunnel environment instead of the gallery used at the parts of entrance and exit sections of the tunnel, omits investment of lamps at the entrance and exit sections and saves power supply of the entrance and exit sections with the largest lighting power consumption.

The invention provides a multifunctional intelligent simulation vehicle. The multifunctional intelligent simulation vehicle comprises a main controller, a camera module, a Bluetooth module, a ZIGBEE module, a WIFI module, an ultrasonic module, a magnetic field induction circuit, an infrared tracking circuit, a reed pipe sensor, a coded disc, a four-wheel drive circuit and a power source voltage-stabilizing circuit, wherein the camera module, the Bluetooth module, the ZIGBEE module, the WIFI module, the ultrasonic module, the magnetic field induction circuit, the infrared tracking circuit, the reed pipe sensor, the coded disc, the four-wheel drive circuit and the power source voltage-stabilizing circuit are connected with the main controller. A motor and the four-wheel drive circuit are connected to form a loop. The Bluetooth module is used for short-distance wireless control. The ZIGBEE module is used for networking information communication among vehicles. The WIFI module is used for transmitting video frame signals. The camera module, the infrared tracking circuit and the magnetic field induction circuit achieve a camera tracking mode, a photoelectric tracking mode and an electromagnetic tracking mode respectively, and the modes can be adaptively switched. The reed pipe sensor is used for controlling the vehicle to advance or stop when executing traffic signal lamps. The ultrasonic module achieves distance measurement and obstacle avoidance. A multi-vehicle networking forming system is achieved while multiple functions of the vehicle are achieved, and the multifunctional intelligent simulation vehicle is high in intelligence degree and high in environmental suitability and simulation degree.

The invention provides a dry adhesion and claw four-wheel-foot-paddle-driven multiphibious robot and a motion method thereof and belongs to the field of robots. A body main body of the dry adhesion and claw four-wheel-foot-paddle-driven multiphibious robot comprises a front foot supporting frame (3), N series-connected body Z-axis steering engine and a rear foot supporting frame (18); a head neckstructure comprises a head Y-axis steering engine (2) and a camera (1); a tail structure comprises a tail X-axis steering engine (26), a tail X-axis steering engine U-shaped connecting piece (27), M series-connected tail Z-axis steering engines and a tail fin (31); and each foot structure consists of a foot Y-axis steering engine, a supporting block, a supporting wheel and a wheel foot paddle. Thedry adhesion and claw four-wheel-foot-paddle-driven multiphibious robot can satisfy self-adaptive requirements of a non-structural topographic water surface-land surface under a natural environment;and meanwhile, the dry adhesion and claw four-wheel-foot-paddle-driven multiphibious robot can adopt dry adhesion to perform large slope wall surface climbing on a smooth surface and can also adopt aclaw to perform large slope wall surface climbing on a rough surface; and the dry adhesion and claw four-wheel-foot-paddle-driven multiphibious robot and the motion method thereof can be used as a dryadhesion and claw four-wheel-foot-paddle-driven multiphibious robot on an all terrain multiphibious cross-country mobile platform under the natural environment and the motion method thereof.

The invention belongs to the field of microorganisms and agriculture of the application environment and particularly relates to a pseudomonas aeruginosa strain PAO1 for degrading pesticides containing ester bonds. The collection number of the strain is CCTCC M 2014630. The strain is wide in degradation spectrum, and can be used for degrading the pesticides containing the ester bonds such as high-efficiency cypermethrin, high-efficiency cyhalothrin, deltamethrin, cypermethrin, fenpropathrin, bifenthrin, kresoxim-methyl, pyraclostrobin and azoxystrobin. The strain is strong in environmental adaptability, good in degrading effect and convenient in use, can be used for degrading the pesticides containing the ester bonds, and has very important application value in the aspects of removing pesticide residues in the environments such as water bodies and soil.

The invention discloses a device for collecting surface panorama images of shaft parts for defect identification. A movement mechanism is a gear and gear ring mechanism, a camera and a light source are fixedly connected to a gear ring in the proper scanning angle through connecting pieces, the device selects three evenly-distributed pinions to be matched with the gear ring, one of the three pinions is a driving gear fixedly connected with a shaft, and the other two pinions are arranged to be driven gears capable of rotating freely. During detecting, a conveying platform transports the shaft parts to the clamping position, after a light sensor receivers a signal, the shaft parts are pushed to compress springs so as to fix the shaft parts, then a servo motor moves, and through belt transmission and gear and gear ring transmission, the light source and the camera rotate around the axes of the shaft parts simultaneously to achieve the detection effect. According to the device, machining iseasy, the cost is low, the structure is simple, maintenance is convenient, the images of the shaft parts can be automatically collected, and the detection speed can be adjusted.

The invention relates to a vehicle-mounted non-contact three-dimensional automatic human body measuring system. The system is characterized by comprising an extending square cabin, a single-column non-contact three-dimensional automatic human body measuring instrument and a monitoring system, wherein the extending square cabin comprises a main compartment and an extending compartment; the extending compartment is embedded on the top of the main compartment; the main compartment and the extending compartment are connected with each other by an extending lifting mechanism in a sealed mode; the inside of the main compartment is divided into a measuring area, a dressing area and a working area by partition segments; the extending compartment is arranged on the top of the main compartment in the measuring area; the single-column non-contact three-dimensional automatic human body measuring instrument is arranged in the measuring area of the main compartment, and comprises a base, an uprightcolumn, a U-shaped measuring arm, four measuring cameras and one measuring platform; and the monitoring system is arranged in the working area of the main compartment. The vehicle-mounted non-contactthree-dimensional automatic human body measuring system has a simple and compact structure and high bump resisting performance, can perform efficient and precise human body dimension measuring work anytime and anywhere and can be widely used in three-dimensional automatic human body measuring processes.

The invention relates to an active noise reduction in-ear type earphone, and relates to the technical field of communication. The active noise reduction in-ear type earphone comprises an earphone shell, a rear cavity, an intermediate cavity and a front cavity are arranged in the earphone shell, a feedforward microphone is arranged in the rear cavity in a transverse manner, the bottom of the front cavity is a sound outlet used for transmitting sounds, a feedback microphone is arranged in the front cavity, the earphone shell is also provided with a front cavity air vent hole communicating with the front cavity, the front cavity air vent hole is located on the earphone shell with the same direction of a feedforward sound-receiving port, and an included angle between the central axis of the front cavity air vent hole and the central axis of the feedforward sound-receiving port is less than 90 degrees. Compared with the conventional earphone, noises enter the earphone from the front cavity air vent hole, when the noises entering the front cavity air vent hole are from different directions, channels from which the noises enter an ear canal are more consistent, the changes of the active noise reduction performance are more consistent in high frequency, and the filter targets of different noises entering the front cavity air vent hole from different directions are more consistent.

The invention discloses a deformation detection device which is used for deformation detection of an airship capsule. The deformation detection device comprises multiple strain sensors which are attached to the surface of the capsule and used for generating the stress strain data according to the deformation of the surface of the capsule; at least one acquisition and transmitting module which is correspondingly connected with multiple strain sensors to acquire the stress strain data; a wireless receiving module which is wirelessly connected with the acquisition and transmitting module; and a ground monitoring center which is connected with the wireless receiving module, wherein the acquisition and transmitting module transmits the acquired stress train data to the ground monitoring centerthrough the wireless receiving module so as to analyze the stress strain data and detect the deformation of the capsule. The strain sensors generate the stress strain data according to the deformationof the capsule, and wireless transmission of the stress strain data can be realized through the wirelessly connected acquisition and transmitting module and the wireless receiving module so that thedeformation of the capsule can be detected in real time, the environmental adaptability is high and effective deformation detection can be performed under various environmental conditions.

The invention discloses a novel sampling and monitoring system for open space oil material fire pollution. A dust preventing and filtering stopper is disposed at the head of each sampling tube. A high-temperature-resistant thermal-insulation material is disposed outside each of the sampling tubes. A sucking pump is installed at the tail end of each of the sampling tubes. Each of the sampling tubes is connected to the left side of a sampling terminal monitoring device. Temperature sensors are connected to the left side of a temperature recorder. A mobile hinge is disposed on the top of each support. The supports and the mobile hinges are cooperatively installed under the mobile hinges to play a supporting role. A scalable metal sleeve is disposed above the mobile hinges. Metal sleeve side tubes are respectively disposed outside the sampling tubes. Side tube mobile hinges are respectively disposed at the lower parts of the metal sleeve side tubes. The sampling and monitoring system can perform multi-point sampling and monitoring for pollution gas, can achieve pollution gas colleting and monitoring in different positions and at different heights by adjusting the scalable metal sleeve and the mobile supports, and can complete temperature monitoring for the point location at the same time of gas collection.

The invention provides an antitheft sensor for an inspection well cover. The antitheft sensor comprises an elastic box. The elastic box is internally provided with an elastic retractable rod which can move up and down. The upper end of the elastic retractable rod protrudes out of the elastic box, and the lower end of the elastic retractable rod is provided with a magnetic element. A Hall proximity switch is arranged in the lower portion of the elastic box, and the magnetic element and the Hall proximity switch are arranged in a spaced mode. The Hall proximity switch is connected with a control circuit board, and the control circuit board is supplied with electricity through a battery. When the elastic retractable rod is pressed downwards by external force, the magnetic element at the lower end gets close to the Hall proximity switch so that the Hall proximity switch can be switched on. The control circuit board comprises a single-chip microcomputer and a radio frequency receiving and sending circuit connected with the single-chip microcomputer. The single-chip microcomputer judges the state of the inspection well cover according to the electrical level of a signal pin of the Hall proximity switch, and when the state of the inspection well cover is abnormal, the single-chip microcomputer controls the radio frequency receiving and sending circuit to wirelessly send the abnormal state of the inspection well cover. The anti-theft sensor is used as a protection device for preventing the inspection well cover from being stolen.

The invention discloses an ecological treatment method of a black and foul water body and relates to the technical field of environmental treatment. The method particularly comprises the following steps: S1, inlet sewage interception: checking and sealing drain outlets at both banks of a watercourse, constructing a plurality of reservoirs according to the length of the watercourse, constructing orperfecting a sewage interception pipe network to effectively intercept sewage flowing into a river and reduce pollution of the sewage to the river from the source, introducing the sewage from the drain outlets into the reservoir through pipelines, thoroughly treating the sewage using an intelligent quick sewage treatment device together with a specific water clearer and alga removal and deodorization agent, adding thoroughly treated water into the river. The method is good in sewage interception effect; and after disperse treatment, the sewage from an external source does not flow into the river any longer. According to the ecological treatment method of the black and foul water body, solid pollutants in the black and foul water body are removed preliminarily in a manual or mechanical salvage manner; the method is strong in environmental suitability, low in cost, good in effect, environmentally friendly, pollution-free, and simple to prepare, takes effect quickly, has no and has positive engineering practicability.

The invention discloses a sagger flatness detection device based on a binocular structured light and a detection method thereof. The device comprises a binocular structured light camera, a three-dimensional point cloud reconstruction module, a fitting plane module and a sagger flatness detection module; the binocular structured light camera is connected with the three-dimensional point cloud reconstruction module, the three-dimensional point cloud reconstruction module is connected with the fitting plane module, and the fitting plane module is connected with the sagger flatness detection module; the fitting plane module is connected with the sagger flatness detection module, and the binocular structured light camera is used for projecting infrared coded structured light to a sagger to be detected and collecting a binocular sagger coded image with coded information; the three-dimensional point cloud reconstruction module is used for calculating depth information of the binocular saggercoded image and reconstructing three-dimensional point cloud data of a sagger distance binocular structured light camera by utilizing the depth information; the fitting plane module is used for fitting a plane as a reference plane by adopting a plane fitting method according to the three-dimensional point cloud data; and the sagger flatness detection module is used for judging the flatness of thesagger according to the projection distance information set from the three-dimensional point cloud data to the fitting plane.

The invention relates to the field of engineering material structure damage pre-formation, and in particular relates to a portable impactor for damage pre-formation. A shock absorption limiting mechanism is arranged at the frontmost end of the portable impactor, is butted to the front end of a front-end self-locking mechanism and is fixed together with the front end of the front-end self-locking mechanism; the rear end of the front-end self-locking mechanism is in threaded connection with the front end of a barrel body mechanism; a gear mechanism and a display and calculation mechanism are welded at corresponding positions on the outer surface of the barrel body mechanism; a spring and a fine adjustment mechanism are arranged inside a barrel body of the barrel body mechanism and are fixed through rear-end nuts of the barrel body mechanism; a locking and unlocking mechanism is positioned on the outer wall of the barrel body mechanism through a clamping slot and is fixed through a screw. The portable impactor for damage pre-formation is safe, portable, simple, high in environment adaptability and easy to operate; the technical limitations that the conventional impacting device cannot adapt to non-horizontal plane and specially-shaped plane impact or facilitates real-time impacting on the spot due to multiple sets of rear end equipment are well solved.

The invention discloses a landslide deformation three-dimensional infrared monitoring device based on RGB color sensors. The device is composed of a plurality of markers and a plurality of detection modules. Each marker and the corresponding detection module are respectively fixed on a landslide monitoring point. According to the invention, the infrared color sensors and humidity sensors are integrated, the three-primary-color reflection ratio of marker color are measured, and the water pressure in the gap of the landslide is detected due to the fact that different marker humidities are corresponding to different color reflection ratios. The color sensors are capable of accurately discriminating very similar colors and even different tones of the same color, and the detection precision is extremely high. Combined with the air humidity data detected by the humidity sensors, the weather change trend of the monitored position can be pre-estimated, the landslide generation early-warning time is advanced, and a time displacement cloud atlas is drawn according to a drawing module, so that the landslide volume is estimated, and full preparation is made for subsequent protection and treatment.

The invention relates to a multi-mode series-parallel mechanical arm based on a movement bifurcation mechanism. The multi-mode series-parallel mechanical arm based on the movement bifurcation mechanism comprises an end executor, an arm and a parallel connection base seat which are connected in sequence, wherein the arm is an eight-pole and single-ring movement bifurcation mechanism, and comprisestwo arm branch chains which are symmetrically arranged, two ends of one arm branch chain are respectively movably connected with two ends of the other arm branch chain so as to form a single-ring andclosed-chain structure, each arm branch chain comprises four connection rods which are movably connected in sequence, the parallel connection base seat is a double-rotational-freedom space parallel mechanism, and a mode switching mechanism used for achieving series connection and parallel connection switching of the two arm branch chains is installed on the parallel connection base seat. Comparedwith the prior art, the multi-mode series-parallel mechanical arm based on the movement bifurcation mechanism has the advantages of being high in work efficiency, small in structure dimension, and high in overall stability.

The invention discloses an online payment offline self-picking verification method and system, and a verification terminal thereof. The terminal comprises an identification code scanning module, a display, a communication module, an operation module and an input module, the identification code scanning module, the display, the communication module, and the input module are separately connected with the operation module, the identification code scanning module is used for obtaining information of an identification code, the communication mode is sued for establishing a communication connection with the outside, the input module is used for obtaining a user instruction and transmitting the instruction to the operation module, and the operation module is used for receiving the user instruction and performing operation processing to accomplish the corresponding user instruction. The verification terminal has high environmental adaptability, the verification can be performed by rapidly scanning bar codes of commodities, whether the commodity purchased by the user online is consistent with offline physical commodity is verified, and with the combination of the method and system, the shopping mode of online payment and offline self-picking of the users can be realized.

The invention relates to a rare earth element-doped layered composite metal hydroxide and a preparation and an application thereof. While preparing, a solution containing Cu<2+>, Ni<2+>, Fe<3> and La<3> and a mixed solution of sodium carbonate and sodium hydroxide are subjected to a coprecipitation reaction, and subjected to steps of aging, filtration, drying and the like to obtain the rare earthelement-doped material based on layered composite metal hydroxide. The material is reacted with low-dose hydrogen peroxide to release a single-line oxygen, hydroxyl, superoxide radical and other reactive oxygen radicals, and florfenicol, phenol, ibuprofen and other organic pollutants in the water are oxidized to achieve efficient degradation of pollutants in water. Compared with the prior art, themethod synthesizes the novel lanthanum-doped copper-based layered composite metal hydroxide, which can effectively remove organic pollutants in the water in a wide pH range, avoids the disadvantagesof narrow pH range and generation of iron filings in the traditional Fenton reaction, and has the advantages of convenient preparation, low dosage, and high utilization efficiency and the like.

The invention discloses an adaptive deformation multi-effect intercepting device for riverway floating garbage, and belongs to the field of riverway garbage intercepting devices. The device is characterized in that firstly, the device can deform according to the width of a riverway and adjust the length of the whole device, so that the device has good environmental adaptability; then, double interception on the floating garbage is realized through main floating rings and auxiliary floating rings, so that interception omission is not prone to occurring, and the interception effect is comprehensive; in addition, through cooperative use among the main floating rings and main pockets, the garbage intercepted for the first time is collected, and through cooperative use among the auxiliary floating rings and an auxiliary pocket, the garbage intercepted for the second time is collected, so that unnecessary manual collection stage is reduced, and the condition of secondary loss of the garbageis reduced; and when the main floating rings, the auxiliary floating rings or net opening annular bags leak air, under the elastic contraction of elastic rings, the net opening annular bags are drivento gather inwards, so that the openings in the main pockets and the auxiliary pocket are tightened inwards, and the garbage is not prone to flying out.

The invention relates to a Beidou satellite automatic sending system of meteorological data, belonging to the field of meteorological equipment manufacture and comprising an automatic meteorological detector 1, a protocol converter 2 connected with the automatic meteorological detector 1 through a RS-232 interface and a Beidou satellite communication terminal 3 connected with the protocol converter 2 through a RS-232 interface. The protocol converter 2 receives the meteorological data sent by the automatic meteorological detector 1 through the RS-232 interface, then compresses the meteorological data to 93 bytes by adopting a dictionary method, and finally compiles the meteorological data into a data packet of a Beidou satellite terminal and sends the data packet to a Beidou satellite communication terminal 3 through another RS-232 interface; the Beidou satellite communication terminal 3 transmits the data to the satellite which sends the data back to a meteorological center. The system is suitable to work in field peopleless environments for a long time, and has the advantages of high transmission efficiency and low price.

The invention provides a target positioning device and method for follow robots. The target positioning device for the follow robots comprises a thermal radiation module, an infrared image acquisitionmodule, a laser scanning module and a data processing module, wherein the thermal radiation module is arranged on a target; the data processing module is used for detecting edge curves of heating strips in an infrared image, solving an average value of all the pixel coordinate values on the edge curves of the heating strips so as to obtain center coordinates of the heating strips and then obtainheating strip widths and heating strip distances; when the thermal radiation module is searched, calculating an average value of center point coordinates of all the heating strips and taking the average value as an image coordinate of the target so as to solve direction information of the target under the infrared image; mapping field scene deep point cloud data to the infrared image so as to obtain distance information corresponding to all the pixels of the infrared image; recognizing an overall profile of the target at a target direction of the infrared image; and carrying out statistical analysis on all the pieces of distance information corresponding to the pixels of the target and carrying out average value calculation to obtain a position of the target.

The invention discloses a photoelectric auto-collimation theodolite. The photoelectric auto-collimation theodolite comprises a laser, a polarization beam splitter, 1 / 4 slide, a beam collimating lens, a compensating lens, a focusing lens, an objective lens, a reflector, and a position detector, wherein the laser is used for emitting polarized beam, the polarized beam orderly penetrates the polarization beam splitter, the 1 / 4 slide, the beam collimating lens, the compensating lens, the focusing lens and the objective lens; after the outgoing beam through the objective lens orderly penetrates the objective lens, the focusing lens, the compensating lens, the beam collimating lens, the 1 / 4 slide, and the polarization beam splitter after being reflected through the reflector; the polarization beam splitter reflects the beam to the position detector. The photoelectric auto-collimation theodolite disclosed by the invention integrates the dual functions of the traditional electronic theodolite and the photoelectric auto-collimator, and can be used as a basic tool for direction measurement, and is provided with the misalignment angle measurement function at the same time; the realization is convenient, the structure is simple, and the higher measurement precision is obtained.

The invention discloses a transplanting method of tilia amurensis tissue culture seedlings, and relates to the technical field of plant tissue culture. The method comprises the following steps: hardening seedlings, screening tissue culture seedlings, transferring the tissue culture seedlings into a seedling hardening culture medium, and placing the seedling hardening culture medium in a ventilatedroom-temperature environment with the air humidity of 65-90% for 3-5 days to obtain the hardened seedlings; culturing, screening the hardened seedlings, transplanting the hardened seedlings into a mixed matrix for 2-3 months, and supplementing an MS nutrient solution containing 0.3-0.5 mg / l of IBA and 0.2-0.5 mg / l of GA every week until the mixed matrix is thoroughly watered and environment humidity reaches 70-80%; and transplanting. The screened tissue culture seedlings have good environmental adaptability, the survival rate and quality of the transplanted tissue culture seedlings are improved, the method is remarkable in effect, and the average transplanting survival rate reaches 97%.

The invention discloses a complete fiber-optic vector microphone probe. The complete fiber-optic vector microphone probe comprises an optical fiber scalar microphone used for directly measuring the scalar acoustic pressure P of an acoustic signal, a two-dimensional optical fiber vector microphone used for directly measuring two-dimensional orthogonal components of the vector particle vibration speed U of the acoustic signal and a one-dimensional optical fiber vector microphone used for directly measuring the vector particle vibration speed U of the acoustic signal. The outer surface of the periphery of an optical fiber scalar microphone structural body is in a cuboid shape, two adjacent vertical planes of the optical fiber scalar microphone structural body respectively bear the two-dimensional optical fiber vector microphone and the one-dimensional optical fiber vector microphone, each surface of the optical fiber scalar microphone structural body is provided with a groove having the same size as the outer structure of the corresponding two-dimensional optical fiber vector microphone or the one-dimensional optical fiber vector microphone to allow the two-dimensional optical fiber vector microphone or the one-dimensional optical fiber vector microphone to be strictly pasted and inlaid in the two grooves, and the orientations and the positions of the two grooves must ensure thatthe three-dimensional 8-shaped directivity formed by the two-dimensional optical fiber vector microphone and the one-dimensional optical fiber vector microphone meets a Cartesian three-dimensional rectangular coordinate system.

The invention discloses a rotary expansion type variable power space radiator which comprises a heat pipe, heat dissipating fins, spherical protrusions, spherical grooves, a metal ring and a heat exchanger. The spherical protrusion is arranged at the tail end of the evaporation section of the heat pipe, the multiple heat dissipating fins are arranged in the heat insulating section and the condensation section of the heat pipe, the ends, close to the spherical protrusions, of the heat dissipating fins are provided with the spherical grooves, the metal ring is of a control structure, and the metal ring is provided with multiple spherical grooves. When the rotary expansion type variable power space radiator is in use, the spherical grooves in the metal ring are connected with the spherical protrusions at the tail end of the heat pipe, a space nuclear reactor is connected with the heat exchanger, the spherical protrusions on the heat exchanger are connected with the spherical grooves of the heat dissipating fins, waste heat generated by the space nuclear reactor is transferred to the condensation section through the heat pipe and finally radiated and transferred to the outer space by the heat radiating fins, the heat dissipating power is changed by changing the expansion angle of the heat radiating fins, and the variable power radiator can be used for various aerospace equipment power sources and systems

The invention discloses an atmosphere-controlling freshness retaining control device and technology for retaining the freshness of fruits and vegetables in a storage bag. The device comprises the storage bag, a gas mixer, a gas detection device and a circuit control device with a touch screen, wherein an air inlet / outlet of the storage bag is connected with the gas mixer, a vacuum pump and the gas detection device, a nitrogen inlet of the gas mixer is connected with a nitrogen source, an air inlet of the gas mixer is connected with a gas storage tank and an air compressor in series, a gas mixture detection port is connected with the gas detection device, and the signal output end of the circuit control device with the touch screen is connected with the air compressor, the gas detection device, the vacuum pump and an electromagnetic valve. The technique comprises the steps that the nitrogen source is turned on, fruits and vegetables are placed in the storage bag, parameters are set, the storage bag is vacuumized, the storage bag is filled with a gas mixture and detection is conducted. The atmosphere-controlling freshness retaining control device and technology for retaining the freshness of fruits and vegetables in the storage bag have the advantages that atmosphere-controlling parameters of the interior of the storage bag reach the fruit and vegetable freshness-retaining range rapidly, and the freshness of fruits and vegetables can be retained for a long time; equipment is simple, operation is easy and convenient, the occupied space is small, power consumption is low, and the device and technique are particularly suitable for ships on which refrigeration chambers are established.