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45 results about "Weather and climate" patented technology
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Weather is the condition of the atmosphere at a particular place over a short period of time, whereas climate refers to the weather pattern, using statistical data, of a place over a long enough period to yield meaningful averages. Climatology studies climatic change, and is an atmospheric science. Climate is an important physical element because it indicates the atmospheric condition of heat, moisture and circulation; it plays a dominant role in shaping vegetation and soil; and it ultimately affects all forms of life, as a result of the very definition of the word, which is a scientific prediction, based on evidentiary statistics, sustained over a long period. There are many elements that make up both the weather and the climate of a geographical location. The most significant of these elements are temperature, atmospheric pressure, wind, solar irradiance, humidity, precipitation, and topography. The greatest influence of climatic change is associated with not only natural, but also artificial factors, which can be measured in terms of both short-term and long-term climate change.
LED display module
ActiveUS20080078733A1Increase awarenessImprove sealingMagnetic/electric field screeningFolding cabinetsVisibilityLED display
An LED display module having features for improvement over prior art devices by providing novel features for improved LED visibility, improved weather and climatological sealing, improved electromagnetic interference (EMI) suppression, improved heat dissipation, and improved airflow.
Owner:DAKTRONICS
LED display module
ActiveUS8172097B2Increase awarenessImprove sealingMagnetic/electric field screeningFolding cabinetsVisibilityLED display
Owner:DAKTRONICS
Method and device of railway roadblock detection and alarm based on radar return characteristics
InactiveCN103033808AHigh resolutionSufficient processing timeRadio wave reradiation/reflectionRoad surfaceNavigation system
Owner:CNGC INST NO 206 OF CHINA ARMS IND GRP
Satellite system and method for circumpolar latitudes
The present invention relates to satellite systems and more particularly, to the provision of a satellite system for weather and climate monitoring, communications applications, and scientific research at higher latitudes, referred to as the circumpolar region and defined here as the area with latitudes greater than 60°, in either the northern hemisphere or the southern hemisphere. Contrary to the teachings in the art it has been discovered that a satellite system and method may be provided using satellites in 24 sidereal hour orbits (geosynchronous) with inclinations (70° to 90°), orbital planes, right ascensions and eccentricities (0.275-0.45) chosen to optimize coverage of a particular service area located at high latitudes. A constellation of two satellites can provide continuous coverage of the circumpolar region. The satellites in this orbit avoid most of the Van Allen Belts.
Owner:TELESAT CANADA
Portable earth surface roughness measuring instrument
InactiveCN102589487ALow costHigh measurement accuracyUsing optical meansMeasuring instrumentEngineering
The invention discloses a portable earth surface roughness measuring instrument, comprising a horizontal rotation driving device and a radial moving arm which is connected with the output terminal of the horizontal rotation driving device and can horizontally rotate by taking the output terminal as the center as well as a controller, wherein the radial moving arm is provided with a sliding block which can move along length direction of the radial moving arm; the sliding block is fixedly connected with a distance measuring device and is used for measuring a distance between the sliding block and an upper cushion surface in vertical direction and a distance between the sliding block and a lower cushion surface in the vertical direction; and the controller is used for controlling rotation output of the horizontal rotation driving device, moving of the sliding block on the radial moving arm and starting of the distance measuring device, receiving a measuring result of the distance measuring device, calculating an earth surface roughness result according to a program preset in the distance measuring device and displaying, storing and sending data. The portable earth surface roughness measuring instrument disclosed by the invention has a simple mechanical structure, low cost and high measurement accuracy, is light, handy and portable and can be applied to measurement on the earth surface roughness of the lower cushion surface in agriculture, soil science, weather and climate predication, geology, microwave remote sensing and other fields.
Owner:REMOTE SENSING APPLIED INST CHINESE ACAD OF SCI
Truss structure of wind turbine generator set
InactiveCN102777333AShorten the timeShorten the construction periodWind energy generationWind motor componentsEngineeringTower
The invention relates to a truss structure of a wind turbine generator set. The truss structure of the wind turbine generator set comprises steel-pipe piles (1), inserting sections (2), jacket pile legs (3), supporting steel pipes (4), a tower platform (5) and inclined struts (6), wherein the steel-pipe piles (1) extend into a supporting layer below the seabed, the inserting sections (2) are partly inserted into the upper ends of the steel-pipe piles (1), the jacket pile legs (3) are welded to the upper ends of the inserting sections (2), the supporting steel pipes (4) are welded between the two jacket pile legs (3), the tower platform (5) is arranged above the jacket pile legs (3) and the supporting steel pipes (4), and the inclined struts (6) are welded above the tower platform (5) and connected with a tower (7) arranged above the tower platform (5). Piling is carried out in advance, and the truss structure enables a steel structure and the steel-pipe piles to be integrated by inserting the inserting sections into the steel-pipe piles and then pouring binding materials, offshore workload of workers is reduced, offshore working time is shortened, influences of weather and climate changes on construction are less, and construction cost is reduced greatly.
Owner:GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
Vehicle monitor information safety system
InactiveCN1858807AReduce data volumeLow costRegistering/indicating working of vehiclesRadio networksData access
This invention relates to a safety system of vehicle monitor information including a CPU and a camera unit, in which, said system also includes a local data access unit, the CPU gets the video information generated by the camera unit in definite time intervals to be edited and processed and stored in the local data access unit, which sets a read control program and refreshes the stored data in terms of the principle of FIFO, therefore, the information storage of this invented safety system does not rely on radio network only and always keeps the latest information as the proof.
Owner:SILANG SCI & TECH SHENGZHEN CITY
Weather and climate adaptive Halloween costume
InactiveUS6904612B2Reduce apparent costume areaMaintaining venting areaProtective garmentEngineeringWeather and climate
Owner:CHOSUN INT
Method for recognizing cloud based on mie-scattering laser radar with equalized value distribution
ActiveCN103675791AImprove data qualityGuaranteed recognition rateElectromagnetic wave reradiationICT adaptationCloud baseEqualization
The invention discloses a method for recognizing a cloud based on a mie-scattering laser radar with equalized value distribution. The method comprises the steps that a mie-scattering laser radar signal is input; semi-discretisation data processing based on noise estimation is carried out on the mie-scattering laser radar signal; data distribution equalization is carried out on the mie-scattering laser radar signal; the background base line of the mie-scattering laser radar signal is generated; the mie-scattering laser radar signal is layered and recognized based on the background base line. Through the method, the importance of a smoothness problem in the cloud recognition process can be weakened, meanwhile, the background base line adapting to signal changes by itself is found out, and therefore the problem that a current algorithm overly depends on smoothness or missing detection happens to weak cloud echo signals is solved, the recognition rate of cloud signals in the observation process is guaranteed, and the data quality of cloud observation is improved, and more accurate observation data are provided for weather and climate study and forecasting.
Owner:BEIJING NORMAL UNIVERSITY
Hydraulic multi-cable lifting conveying device
ActiveCN107134741ARealize automatic retractionExtended service lifeWinding mechanismsCranesElectricityEngineering
The invention discloses a hydraulic multi-cable lifting conveying device. A cable reel on which a cable can be reeled up is mounted on a base of a fixing support through a support frame. The top of the fixing support is equipped with a lifting mechanism. The front end of the lifting mechanism is connected with a cable conveying mechanism. A telescopic support and suspension cantilever of the lifting mechanism and a rotating friction wheel structure of the cable conveying mechanism can quickly convey shore connection cables onto a ship. A gear shift mechanism can be adapted to the lifting needs of one or more cables. A constant tension structure of the cable reel can make the cable in a dynamic balanced state, and the service life of the cable is prolonged. Through a moving mechanism at the bottom of the fixing support, the hydraulic multi-cable lifting conveying device can be adapted to outdoor fixed installation, can also be made mobile to facilitate site evacuation, and is suitable for the using needs in different environments. The hydraulic multi-cable lifting conveying device is rainproof and windproof, operates free from the influence of weather and climate, has high working efficiency, low labor intensity and good cable protection effect, is easy to maintain, saves both time and labor, causes no damage to the cable, and is high in safety factor and easy to operate.
Owner:JIANGSU ZHENAN ELECTRIC POWER EQUIP
Circular steel tube column in threaded connection and construction method
InactiveCN105275095AOvercoming qualityOvercoming disadvantages such as climate impactStrutsBuilding material handlingScrew threadWeather and climate
The invention relates to a circular steel tube column in threaded connection and a construction method. The circular steel tube column in threaded connection comprises a plurality of circular steel tube column units, the circular steel tube column units are in threaded connection at splicing segments, and the circular steel tube column units are linked to the splicing segments by use of welding. A circular steel tube column unit at an upper segment is provided with crowbar holes enabling crowbars to pass through; and when two circular steel tube column units adjacent to each other at an upper position and a lower position are hoisted in place, and the upper-segment circular steel tube column unit is screwed tight through applying forces to the crowbars inserted into the crowbar holes so as to finish threaded connection between the circular steel tube column units. The threaded connection pitch point provided by the invention overcomes the disadvantages of low efficiency of onsite welding pitch points, low quality, influences exerted by weather and climate and the like. The requirements for technical level of installation workers are reduced, and the circular steel tube columns can be spliced through simple operation.
Owner:SHANDONG UNIV
Cadastral measurement method
InactiveCN109061670AReduce in quantityReduce dependenceSurveying instrumentsElectromagnetic wave reradiationData integrityData acquisition
The invention provides a cadastral measurement method, which comprises the following steps: step (1): based on a multi-platform lidar system, driving to the inside of a measurement area from the outside or flying over the measurement area, carrying out data collection according to a collection line designed according to early-stage investigation of a project, checking whether the collection line and a collection area are intact after the collection is completed, and if having omissions, requiring for timely supplementary measurement so as to ensure data integrity; step (2): performing transformation on static data of a base station and fused resolution on POS data based on a data resolution module; step (3): transforming original laser data into a laser dot cloud of a las format under a WGS84 coordinate system through a dot cloud data preprocessing module, and detecting a mean square error of height and detecting a mean square error of plane through a precision testing module; step (4): performing data preprocessing on inertial measurement unit data in field collected data and removing the errors. The cadastral measurement method in the invention can reduce the number of fieldworkmeasurement workers and reduce the implementation cost, is less dependent on the weather and climate, and is high in the collection efficiency; the main working hours are converted to office work production, and the operating efficiency is increased by over 7-10 times.
Owner:SHANGHAI HUACE NAVIGATION TECH
Anti-cancer drug prepared by using 3D printing technology, and method
InactiveCN106109245AIncrease profitSimple manufacturing processOrganic active ingredientsPharmaceutical product form changeComputer designSoftware
The invention discloses an anti-cancer drug prepared by using a 3D printing technology, and a method. The method comprises: uniformly mixing an anti-cancer drug, a high polymer material, and a drug excipient, extruding obtained mixture through an extruding machine, to obtain a wire rod containing drug; using computer design software to design a structure model of the anti-cancer drug, storing the structure model in a file format which can be identified by a 3D printer, importing the file into the 3D printer, using hierarchical software to perform hierarchical processing; respectively importing the high polymer material and the obtained wire rod containing drug into the 3D printer, selecting the drug structure model, setting printing precision, velocity, and temperature, to obtain the 3D printed anti-cancer drug. The method is characterized in that the method is convenient and fast and is simple in operation, and the size and shape of a tablet can be designed according to variation of weather and climate. The method can make tablets in different sizes and shapes, and utilization rate of the drug can be effectively improved.
Owner:SOUTH CHINA AGRI UNIV
Portable humidor devices
InactiveUS20150021217A1Maintenance conditionRapid deteriorationTobacco devicesContainer/bottle contructionEngineeringLoudspeaker
The present invention provides portable humidors 1) designed to withstand the rigors of travel, as well as varying weather and climate conditions, while securely retaining, and maintaining the smokable integrity of any cigars stored inside, and 2) designed with an audio speaker system.
Owner:SMITH JASON RYAN
Tropospheric roof wind field inversion method and device, storage medium and computer equipment
PendingCN111241698AEffectiveHigh weather climateDesign optimisation/simulationCAD numerical modellingLongitudeMeteorological satellite
The invention discloses a tropospheric top wind field inversion method and device based on a meteorological satellite, a storage medium and computer equipment. The method comprises the following steps: obtaining tropospheric top air pressure data based on meteorological satellite observation data inversion, and converting the tropospheric top air pressure data from a satellite observation projection mode to an equal latitude and longitude projection mode; calculating a Coriolis force of each latitude, obtaining the wind speed component value of the tropospheric top wind field by adopting a difference method, and determining the wind speed component direction of the wind field according to the latitude value; obtaining the wind speed of the tropospheric top wind field; and outputting the tropospheric top wind field data obtained by inversion. The tropospheric top wind field result obtained through the inversion method is kept consistent with the inversion result in the prior art, so theeffectiveness is achieved; tropospheric top wind field data higher in spatial resolution and time resolution compared with an existing inversion method can be obtained, thereby facilitating the obtaining of mesoscale structure information and weather and climate characteristics of the tropospheric top.
Owner:NAT SATELLITE METEOROLOGICAL CENT
Aquilaria sinensis high-pressure infusion tambac generating method and device
The invention relates to a method for improving the infusion efficiency of the infusion method, specifically the method and device for high-pressure infusion of arboriflora infusion, in which holes are drilled at 5-10 cm from the branch point of the tree, and a pressurized infusion bottle is used to infuse the holes 600-800 ml of aroma-containing liquid; after the aroma-containing liquid is infused, use a stopper to tighten the hole. The high-pressure infusion method for A. argentina provided by the present invention is simple to operate, greatly shortens the input time of the arborescence liquid by using high-pressure branch infusion, is not affected by weather and climate, and can be implemented in cloudy and rainy days, and the pressurized infusion method can be used in rainy days. The efficiency of day-to-day infusion is 30% higher than that of ordinary infusion method in suitable weather.
Owner:INST OF MEDICINAL PLANT DEV CHINESE ACADEMY OF MEDICAL SCI HAINAN BRANCH
Threaded-connection square steel pipe column and construction method
InactiveCN105317167ARealize splicingSplice board connection realizationStrutsBuilding material handlingArchitectural engineeringWeld seam
The invention relates to a threaded-connection square steel pipe column and a construction method. The threaded-connection square steel pipe column comprises a plurality of square steel pipe column units, the square steel pipe column units are in threaded connection by arranging round steel pipes with threads at the splicing sections, and the square steel pipe column units and the round steel pipes with the threads are connected through weld seams and multiple layers of splicing plates. Each square steel pipe column unit located on the upper section is provided with crowbar holes, when every two square steel pipe column units adjacent vertically are hung in place, force is exerted on a crowbar inserted into the crowbar holes to screw down the square steel pipe column unit located on the upper section, and threaded connection between the square steel pipe column units is completed. The defects that on-site joint welding is low in efficiency and quality and are affected by weather and climate are overcome. The requirement for the technological level of installers is lowered, and round steel pipe columns can be spliced through simple operation.
Owner:SHANDONG UNIV
Meteorological satellite dynamic tropospheric top height inversion method and device, storage medium and computer equipment
ActiveCN111178384AHighly consistent resultsEffectiveWeather condition predictionCharacter and pattern recognitionTroposphereWater vapor
The invention discloses a meteorological satellite dynamic tropospheric top height inversion method, and the method comprises the following steps: obtaining the data and positioning information of a real-time static meteorological satellite imager, and calculating the brightness temperature of a middle-layer water vapor channel, the brightness temperature of a high-layer water vapor channel and the brightness temperature of a long-wave infrared channel; acquiring real-time three-dimensional temperature field information of the numerical forecasting mode, and performing space-time matching witha meteorological satellite; obtaining the average specific humidity of the middle layer and the high layer of the troposphere, inputting the obtained prediction factor data into a regression prediction model, and obtaining the top height of the dynamic troposphere through an inversion calculation formula; and outputting a result obtained by inversion calculation according to pixels. The tropospheric top height result obtained through the inversion method is consistent with the inversion result in the prior art, effectiveness is achieved, dynamic tropospheric top height data with higher spatial resolution and time resolution than an existing inversion method can be obtained, and obtaining of mesoscale structure information and weather and climate characteristics of the tropospheric top isfacilitated.
Owner:NAT SATELLITE METEOROLOGICAL CENT
Fuel supply system of double fuel tanks of heavy truck
InactiveCN102230434AOvercoming cost increasesSwitch in timeMachines/enginesLiquid fuel feedersCombustionFuel tank
The invention discloses a fuel supply system of double fuel tanks of a heavy truck. The fuel supply system is characterized by comprising a No.1 fuel tank and a No.2 fuel tank, wherein the No.1 fuel tank and the No.2 fuel tank can select one ground connection combustion engine; the fuel pipeline of the No.1 fuel tank and the oil pipeline of the No.2 fuel tank are connected into a main fuel pipeline communicated with the combustion engine by virtue of a first synchronous valve; and the fuel return line of the No.1 fuel tank and the fuel return line of the No.2 fuel tank are connected into the main fuel return line communicated with the combustion engine by virtue of a second synchronous valve. In the fuel supply system, two fuel tanks are adopted, thus different types of fuels can be respectively added, the fuel supply system not only can supply fuels like a single fuel supply system but also can adapt to changeful weather and climate. The fuel supply system can be switched to the other fuel tank storing other types of fuels for supplying fuels to switch 'one truck with double fuels', thus the phenomenon of fuel cost increase brought by delay fuel replacement is overcome, and the transportation cost can be effectively lowered.
Owner:QINGDAO HICORP GROUP CO LTD
Preparation method for microbial lipid-based polyhydric alcohol
InactiveCN104725210AHigh epoxy valueReduce manufacturing costOrganic compound preparationCarboxylic acid esters preparationDistillationRaw material
The invention discloses a preparation method for microbial lipid-based polyhydric alcohol. The method comprises the following steps of adding alcohol and an acidic catalyst into epoxidation microbial lipid, terminating reaction by use of a sodium carbonate solution after stirring reaction for 1-6 hours at a constant temperature of 40-90 DEG C, washing an obtained crude product with hot water so that the solution becomes neutral, and then performing reduced pressure distillation and dehydration on the product obtained through washing to obtain the target product. According to the method, the microbial lipid adopted by the method takes maize straws and rice straws as raw materials, and the production cost is low, so that large-scale industrial production is easily realized. The microbial lipid-based polyhydric alcohol prepared by the method is wide in hydroxyl value distribution, and not only can be used for preparing a flexible polyurethane foam material, but also can be used for preparing a rigid polyurethane foam material; the problems in the prior art that the production cycle of animal and vegetable lipid is long, the production is limited by weathers and climates, and additional cultivated land resources are occupied are solved, the problem of competing for grains with human beings is solved, and the method has good economic benefits and wide application prospect.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
Hydraulic multi-cable lifting conveying device
ActiveCN107134741BRealize automatic retractionExtended service lifeWinding mechanismsCranesElectricityEngineering
Owner:JIANGSU ZHENAN ELECTRIC POWER EQUIP
Weather forecasting system-based weather forecasting method, device, equipment and medium
ActiveCN114236643AImprove accuracyWeather condition predictionICT adaptationPredictive methodsClimate Forecast System
The invention relates to the technical field of intelligent decision making, and discloses a weather forecasting system-based weather forecasting method, which comprises the following steps of: acquiring first topographic data of a target area from a target database; dividing the target area into a plurality of divided areas according to the first topographic data, and obtaining second topographic data of the divided areas; obtaining regional longitudes and latitudes of the divided regions according to the first topographic data, and obtaining background field meteorological data and static data of the divided regions from the second topographic data; and interpolating the background field meteorological data and the static data of each divided region into the region longitude and latitude of each divided region, and calculating by calling a standard weather and climate forecasting system to obtain a prediction result of each divided region. The invention further provides a weather forecasting device and equipment based on the weather forecasting system and a storage medium. The invention also relates to a block chain technology, and the topographic data can be stored in a block chain node. According to the invention, the accuracy of weather prediction of different regions can be improved.
Owner:CHINA PING AN PROPERTY INSURANCE CO LTD
Atmosphere-cleaning device for vehicles
ActiveUS9446352B2Efficient workRecovery functionGas treatmentDispersed particle separationAtmospheric airSnow melting
Owner:TOYOTA JIDOSHA KK
Fry culturing method
The present invention discloses a fry culturing method. The method comprises the following steps: (1) preparing a culturing pond; (2) selecting and placing parent fishes, wherein the parent fishes which may reach sexual maturity in 80-100 days later and are healthy and active, placing 150-200 fishes in the culture unit in each step (1); (3) controlling the culture conditions of the parent fishes; (4) mating and spawning, wherein two heterosexual fishes having a mating intention are selected and placed individually in the area of the 0.6-1 m2, and injecting the spawing luteinizing hormone and a chorionic hormone for aquatic products for the parent fishes in a spawning box according to a dosage, wherein the water temperature of the spawning box is maintained at 25-30 DEG C, all-black treatment is maintained in the spawning box for 24 hours; (5) incubating fishes; (6) culturing young fishes; and (7) dividing young fishes into ponds. The culturing method disclosed by the present invention can culture fries systematically according to the amount, and is not needed to consider the effects of factors such as weather and climate on fry culture, and the fry reproductive rate is greatly improved.
Owner:宜章洪成特种水产繁育场
Airport bird situation monitoring method and system
InactiveCN112530207ACause electromagnetic interferenceGuaranteed reliabilityPhotogrammetry/videogrammetryAircraft traffic controlSimulationMonitoring system
The invention relates to the technical field of intelligent monitoring, and discloses an airport bird situation monitoring system to ensure the traffic safety of flights. The method comprises the following steps: deploying an ADS-B terminal for acquiring ADS-B information of an airplane at an airport; acquiring bird activity information by adopting pure passive infrared detection equipment; and combining the bird activity information with the ADS-B information of the airplane, and judging whether the flight or take-off and landing of the airplane is dangerous or not. Furthermore, an artificialintelligence analysis system can be constructed to analyze bird activity types and activity rules, and weather and climate factors are combined to form airport bird condition prediction information.And the bird condition prediction information is combined with the ADS-B information of the aircraft to judge whether the flight or take-off and landing of the aircraft is dangerous or not.
Owner:湖南傲英创视信息科技有限公司
Satellite system and method for circumpolar latitudes
Owner:TELESAT CANADA
Solar heat collection system photo-thermal efficiency prediction method based on GA-GRNN
ActiveCN109539596AReduce difficultyImprove fitting accuracySolar heating energySolar heat collectors safetyCollection systemEngineering
The invention discloses a solar heat collection system photo-thermal efficiency prediction method based on GA-GRNN. The method comprises the following steps that 1), parameters of the solar heat collection system are determined; 2), training test data of a network are collected and distributed; 3), a GRNN structure is constructed; 4), an optimal smoothing factor sigma is determined through GA; 5),the GA-GRNN is trained so as to obtain a trained GA-GRNN; 6), the GA-GRNN is tested, and the test data selected in the step 2 are input into the GA-GRNN which is trained in the step 5 for testing; and 7), the photo-thermal efficiency prediction is carried out by using the GA-GRNN trained in the step 6 to obtain the photo-thermal efficiency prediction result of the current solar heat collection system. According to the photo-thermal efficiency prediction method, the uncertainty of weather and climate factors can be remedied, the difficulty of data collection is greatly reduced, and the photo-thermal power of the solar heat collector can be accurately predicted.
Owner:XI'AN POLYTECHNIC UNIVERSITY
Method for extracting real-time index of quasi-biweekly oscillation (QBWO) at Eurasian medium-high latitude in summer
The invention discloses a method for extracting a real-time index of quasi-biweekly oscillation (QBWO) at Eurasian medium-high latitude in summer, which comprises the following steps of: firstly, performing EEOF analysis on 500hPa potential height fields of 10-30 days of band-pass filtering lagged by -6, -3 and 0 days in medium-high latitude from May to September in summer in 1979-2018 to obtain first four modals; secondly, extracting a 500hPa potential height distance flat field for 10-30 days by adopting a non-filtering method; projecting the 10-30 days of non-filtered 500hPa potential height distance flat fields including -6, -3 and 0 days to the first two EEOF modals to obtain a real-time index of quasi-biweekly oscillation at Eurasian medium-high latitude; and then projecting the 10-30 days of non-filtered 500hPa potential height distance flat fields including -6, -3 and 0 days to a third EEOF modal and a fourth EEOF modal to obtain a second real-time index of quasi-biweekly oscillation at Eurasian medium-high latitude. According to the method, the key area of the medium-high-latitude QBWO and the circulation structure and propagation characteristics thereof are grasped, the relation between the medium-high-latitude QBWO and weather and climate in China and even in the East Asian region is embodied, and the method is applied to real-time monitoring and provides reference for evaluation of the simulation capacity of the mode QBWO.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Satellite system and method for global coverage
ActiveCN108430875AGraceful downgradeLaunch systemsCosmonautic partsSatellite systemAtmospheric sciences
The present invention relates to satellite systems and more particularly, to the provision of a novel, non-geostationary satellite system and method for weather and climate monitoring, communicationsapplications, scientific research and similar tasks, with global coverage. Contrary to the teachings in the art it has been discovered that global coverage may be obtained using a constellation of sixsatellites in two orthogonal, 24 sidereal hour orbits (geosynchronous) with inclinations of 70 to 90degrees, and eccentricities of 0.275 - 0.45. By placing three of the satellites in a first orbit with an apogee over the north pole, and three of the satellites in a second, orthogonal orbit with an apogee over the south pole, global coverage may be obtained. As well, the satellites in these orbitsavoid most of the Van Allen Belts.
Owner:ТЕЛЕСАТ КАНАДА
Cadastral surveying system based on multi-platform laser radar
InactiveCN108919298AReduce in quantityLow implementation costElectromagnetic wave reradiationData integrityRadar systems
The invention provides a cadastral surveying system based on a multi-platform laser radar. The cadastral surveying system based on the multi-platform laser radar comprises a multi-platform laser radarsystem, a data resolving module and a point cloud data preprocessing module. The multi-platform laser radar system drives into a surveying area or flies over the surveying area from the outside of the surveying area, data acquisition is carried out according to an acquisition route surveyed and designed in the earlier stage of a project, whether the acquisition route and an acquisition area are complete or not is checked after the acquisition is completed, and supplementary surveying is timely carried out if omissions exist to ensure data integrity. The data resolving module is used for static data conversion of a base station and POS data fusion resolving. The point cloud data preprocessing module is used for converting original laser data into laser point clouds in las format under a WGS84 coordinate system. The cadastral surveying system based on the multi-platform laser radar can reduce the number of field surveying personnel, reduce the implementation cost, have little dependenceon weather and climate, have high acquisition efficiency, convert the main working time into office work production, and improve the operation efficiency by more than 7-10 times.
Owner:SHANGHAI HUACE NAVIGATION TECH
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