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104 results about "Observation function" patented technology

Observation is the function of the senses, is the perception that living beings have environment surrounding them through the receptor senses.

Display system suitable for comparing and observing growth of plant root systems

InactiveCN102106252AAchieving Variation in Growing ConditionsAchieve differenceAgriculture gas emission reductionCultivating equipmentsPlant rootsNutrient solution
The invention relates to a display system for comparing and observing the growth of plant root systems under different growing conditions, particularly to a display system which utilizes water culture method for parallel cultivation, can satisfy continuous growth requirements of plants and is used for observing growth comparison experiments of plant root systems. The display system comprises three main parts which are a cultivation tank, a nutrient fluid circulation and regulation device and a movable stand; the cultivation tank and the nutrient fluid circulation and regulation device are respectively arranged on the movable stand and are communicated through a pipeline; and nutrient fluid required by the cultivation tank is supplied by the nutrient fluid circulation and regulation device. The display system provided by the invention can not only be used for teaching works such as comparing and displaying geotropism, nutrient-tropism, hydrotropism and other growth characteristics of plant root systems, but also provide a convenient experimental tool for continuously comparing and observing growth conditions of plant root systems under different environmental conditions, and the problems in the prior art such as incapability of measuring intuitionally and all sidedly, inaccurate simulation and observation results, lack of comparative observation function, and the like are solved.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI

Multifunctional astronomical telescope integrating sun observation function with star observation function

Disclosed is a multifunctional astronomical telescope integrating a sun observation function with a star observation function. A Gregore optical system is employed as a basis of a three-mirror system. The multifunctional astronomical telescope is characterized in that the optical system is internally provided with a coude reflector for transiting light reflected by a primary mirror and a secondary mirror to an altitude axis, and system focal ratio conversion is carried out through a flat spherical mirror on the altitude axis; three focuses are designed for a system: a main focus is provided with a view field diaphragm, a reflector and a refrigeration apparatus and is shared with a star observation optical path; a system focus provided with a magnetic analyzer calibrating apparatus; and a scientific focus which involves whole-reflector imaging; and a conversion apparatus is arranged at the focus position of the main mirror, and through switching between the view field diaphragm and an image field correction mirror, switching between a sun observation optical path and a star observation optical path is realized. The multifunctional astronomical telescope provided by the invention solves the problem that sun observation and star observation cannot be realized in the one astronomical telescope in the prior art, and realizes unification of wide spectrum, large view field, high-quality imaging and high-resolution spectrum measuring functions under the condition of sun and star observation.
Owner:NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE

Target tracking method and expansion truncation no-trace Kalman filtering method and device

InactiveCN103955892AReduce prior distribution varianceSolve problems that do not have a unique inverseImage enhancementImage analysisLinear regressionSelf adaptive
The invention discloses a target tracking method and system and an expansion truncation no-trace Kalman filtering method and device. The expansion truncation no-trace Kalman filtering method comprises the steps that an original prior probability density function is obtained according to no-trace conversion; a first posterior probability density function is obtained according to the original prior probability density function; the original prior probability density function is corrected according to the statistics linear regression theory and a target observation vector of the current target observation moment so that the corrected prior probability density function can be obtained; a second posterior probability density function is obtained according to the corrected prior probability density function; a combined posterior probability density function is obtained according to the original prior probability density function and the second posterior probability density function. According to the Kalman filtering method, the problem that the observation function does not have the only inverse function can be solved, prior distribution variances of target states are effectively reduced, state upgrading is carried out in a self-adaptation mode according to the precision of the observation information, the filtering precision is effectively improved, and the practicality is high.
Owner:SHENZHEN UNIV

Double-leaf weathertight and fireproof door

The invention relates to a double-leaf weathertight and fireproof door which comprises door leaves and a door frame, wherein the door leaves are connected with the door frame through hinges, the doorleaves are in a split double-leaf structure, a door lock is arranged between the two door leaves, locking devices are arranged around the inner parts of the door leaves and clamp the door leaves intothe door frame, the inner surfaces of the door leaves are inner sealing plates, the inner parts of the inner sealing plates are provided with fireproof plates, the inner parts of the fireproof platesare door leaf packing, connecting parts of the door leaves and the door frame are sealed by rubber strips and provided with fireproof strips, A-60 fireproof glass is arranged in the two door leaves which are split, and two sides of the A-60 fireproof glass are provided with heat-resisting adhesive strips. When the weathertight function is needed, only the two doors are locked; when a fire happens,the fireproof strips of the door leaves rapidly expand and block fire to enter, and the fireproof materials at the interlayer of the door leaves prevent the temperature of an unexposed surface from raising. The door leaves are provided with observation windows enabling the door to have observation function, thereby visually judging the fire degree when the fire happens.
Owner:无锡市海联舰船内装有限公司

Observation method and observation system of diesel SCR system input state

The invention discloses an observation method and an observation system of a diesel SCR (Selective Catalytic Reduction) system input state. The observation method comprises the following steps that Step 1, a state space model is established according to a chemical reaction in an SCR system; Step 2, the state space model is combined with an EKF (Extended Kalman Filter) equation, wherein the EKF equation comprises a prediction equation, namely x(k) is equal to f[x(k-1),u(k)] plus w(k), and a renewal equation, namely z(k) is equal to h[x(k)] plus v(k), x(k) represents a state vector, u(k) represents an input vector, w(k) represents a gaussian process noise, z(k) represents an observation vector, h(x) represents an observation function, and v(k) represents a gaussian observation noise; and Step 3, the EKF algorithm mentioned above is encoded with software, and computational simulation is performed, thereby obtaining an input concentration estimated value. According to the observation method and the observation system, the method expanding Kalman filters to perform input state observation is designed, so that the validity of a designed observer is verified in simulation; in addition, the precision of the estimated concentration is ensured; the expected design purpose is achieved; and an ammonia gas sensor or an NOx sensor at an inlet can be replaced completely.
Owner:SHANGHAI MARITIME UNIVERSITY

Chinese bee hive with outer solid layer box body and inner transparent layer box body

The invention discloses a Chinese bee hive with an outer solid layer box body and an inner transparent layer box body; a solid outside layer is a bee hive of an existing structure or an underground honeycomb which can isolate light, insulate heat and prevent sunstroke. An inner transparent layer is a transparent box which is made of a novel thermoplastic transparent material in industrialized production. The box body of the inner transparent layer is used for receiving wax secreted by a bee for building the honeycomb. When the honeycomb in the box is checked, the situation in the honeycomb can be seen only by tearing off the outer layer box or lifting the inner layer box, so that the problem of the prior art that the situation in the honeycomb can be observed after taking off the cover and opening the box. In order to realize the practicality of the Chinese bee hive, the structure of the inner transparent layer bee hive is designed into a food steamer shape, the biological characteristics of Chinese bees are integrated, the complicated management in breeding Chinese bees with movable frames is omitted, and the Chinese bees are bred through a 'non-management' management method. According to the Chinese bee hive with the outer solid layer box body and the inner transparent layer box body, because the novel bee hive is made of the novel transparent material in the industrialized production, a bee hive observation function is realized, the effect of simplifying the bee observation is achieved, the simple operation of Chinese bee breeding is promoted, and a large-scale Chinese bee breeding process is promoted.
Owner:陈亚云

Memory motor winding multiplexing control method and system for flux linkage observation

The invention discloses a memory motor winding multiplexing control method and system for flux linkage observation. The invention aims to solve the problem that the use efficiency of a magnetism adjusting winding of a traditional direct-current magnetism adjusting type memory motor is low due to the fact that the magnetism adjusting winding is in a redundant state in a non-magnetism-adjusting period. The method comprises the steps that 1, when the magnetization state of a memory motor needs to be adjusted, a magnetism adjusting current reference value is selected according to the motor rotating speed; 2, through current feedback control, the direct-current magnetism adjusting winding is driven to generate magnetism adjusting current so as to adjust the magnetization state of the permanentmagnet; 3, when the memory motor operates normally, induction voltage of the magnetism adjusting winding is collected and induction potential of the magnetism adjusting winding is extracted; and 4, apermanent magnet flux linkage value is calculated by using the induced potential of the magnetism adjusting winding for vector control of the motor. According to the invention, the flux-adjusting winding in a redundant state in a non-flux-adjusting period is used as a flux linkage observation function, so that the utilization efficiency of the direct-current flux-adjusting memory motor can be improved, and the dynamic performance and the anti-interference capability of a control system are improved.
Owner:SOUTHEAST UNIV

Method and device for channel estimation in direct-sequence code division multiple-access uplink

InactiveCN105024957AStrong structured sparsityLow average sample rateBaseband system detailsChannel parameterCode division multiple access
The present invention relates to a method and device for estimation of channel parameters in a direct-sequence code division multiple-access uplink based on compressed sensing, belonging to the field of technology of communication signal processing. The device provided by the invention comprises a parallel multi-channel compressed sensing receiving module and a PA-SLSS iterative search module, the parallel multi-channel compressed sensing receiving module is used for multiplying received signals by a group of observation functions which meets the requirement of RIP, integrating and sampling the multiplying result so as to obtain observation vectors, and the PA-SLSS iterative search module examines linear expression of the observation vectors output by the parallel multi-channel compressed sensing receiving module relative to column vectors of equivalent dictionary matrix so as to obtain estimated results of the channel parameters through invoking generated equivalent dictionary matrix in advance and the least square method. Compared with the prior art, the structured feature and sparse property inherent in a spread spectrum domain of the direct-sequence code division multiple-access uplink signals are employed, and signals are sampled through the compressed sensing technology, wherein the speed of sampling is lower than the speed of Nyquist, thereby the requirement for the front end of ADC (analog-to-digital converter) is reduced.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Electronic bending endoscope device and endoscope supporting device

The present invention provides an electric bending endoscope device which has an endoscope supporting device. The endoscope supporting device is provided with an electric bending unit and an insertion portion detachably configured in a state that an electric bending endoscope is always supported to improve an efficiency of an operation to be performed before and after an inspection and to reduce the work or burdens of the users, and in the state that the endoscope is being supported, the endoscope can be used, and similarly, the supporting device can be stored in the state that the endoscope is being supported. For the purpose, the electric bending endoscope device includes an endoscope 11 having an observation function and a treatment function of the inside of a body cavity, and an endoscope supporting device 40 having a first moving member (hinge 46) capable of moving up and down the endoscope in a direction perpendicular to a floor, a second moving member (arm movable portion 43 and slide guide 44) capable of moving the endoscope in a horizontal direction with respect to the floor, a first supporting portion (bearing portion 42a) for permitting the endoscope to rotate around an axis and supporting the endoscope, and a second supporting portion (supporting portion 42) for supporting the endoscope movably in vertical and horizontal directions.
Owner:OLYMPUS CORP
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