32results about How to "Realize comparative analysis" patented technology

The invention discloses a real-time monitoring method for growth characters of tea trees in intensive cultivation. The method comprises the following steps: performing real-time data acquisition by a tea tree living body growth character data acquisition device based on online location, transmitting the acquired data to an artificial comprehensive management center through a wireless communication way to process, wherein the acquired data comprises current location data acquired by a locating mechanism, fresh tea leaves spectrum data acquired by a high spectrum imaging sensor, and average growth height of fresh tea leaves measured by an ultrasonic wave sensor, and judging the best fresh tea leaf picking time based on that the data and a picking judgment model established off line are combined by the artificial comprehensive management center. The picking judgment model comprises a bud size growth measurement model based on average growth height, a yield correlation model and a quality correlation model based on the high spectrum image data. The real-time monitoring method for the growth characters of the tea trees in intensive cultivation is beneficial to realizing of intensive cultivation and automation in planting of the tea trees.

The invention discloses a device for data acquisition of fertility characteristics of a tea tree living body based on online positioning. Four vertical supporting rods (2) are arranged on four corners of a rectangle covering the tea tree plantation zone; a colored mark (3) is arranged at the top end of each supporting rod; a guide rail (1) is arranged on each of the two long sides of the rectangle; four pulleys and a motor (20) used for driving the supporting rods are arranged at the bottom of a frame (5); an omnibearing visual sensor (9) is fixed onto a tripod (12) arranged at the top end of the frame; a computer (7), a storage battery (8), an ultrasonic sensor (16) and a wireless transmitter (14) are further arranged on the frame; a hyperspectrum sensor is also arranged at the top of the frame; the device for data acquisition of fertility characteristics of the tea tree living body based on online positioning has the characteristic of high automation degree, so as to provide infrastructure for fine plantation of tee trees.

The invention discloses an electronic commerce financial management system comprising a logistics enterprise terminal, a server, a client end and a material supply enterprise terminal, wherein connection between the logistics enterprise terminal and the server, connection between the server and the client end and connection between the server and the material supply enterprise terminal is realized via the Internet; the client end is used for inputting types, weight, volume, places of departure, destinations and acceptable price ranges of goods that need to be transported; the client end is also used for inputting types, quantities, basic requirements and acceptable price ranges of goods that need to be purchased; the server is used for receiving all kinds of transport case information input via the logistics enterprise terminal, received data is stored in a database after being classified, and the server is also used for receiving all kinds of goods information input via the material supply enterprise terminal and storing received data in the database after the received data is classified. Via the electronic commerce financial management system, overall management of financial information of a shop can be realized, and workload of a user can be greatly reduced.

The invention discloses a three-dimensional information comparative analysis method based on gas chromatography-mass spectrometry analysis data. The three-dimensional information comparative analysis method comprises the steps of: 1, superposing a total ion chromatorgraphy and a mass spectrogram of a sample obtained by a gas chromatography-mass spectrometry combined instrument to obtain a three-dimensional omnibearing spectrogram of the sample, wherein the three-dimensional omnibearing spectrogram regards retention time, mass-to-charge ratio and abundance as three-dimensional coordinate axes; 2, performing comparative superposition or differentiation deduction on three-dimensional omnibearing spectrograms of different samples to further perform characteristic analysis on spectrograms of the samples and realize comparative analysis on components of different samples; and 3, analyzing overlapped peaks. The three-dimensional information comparative analysis method based on the gas chromatography-mass spectrometry analysis data, disclosed by the invention, has the advantages of being able to realize comparative analysis on components of different samples and component analysis on the overlapped peaks.

The invention relates to a method for determining on-state loss of a modularized multilevel converter. The method comprises the steps of determining IGBT (Insulated Gate Bipolar Transistor) on-state loss in single-phase upper and lower bridge arms of the modularized multilevel converter; determining diode on-state loss in the single-phase upper and lower bridge arms of the modularized multilevel converter; and determining three-phase on-state loss of the modularized multilevel converter. According to the method, an analytic expression of the on-state loss of the modularized multilevel converter is effectively solved based on instantaneous currents of an IGBT and a diode, thereby facilitating quantitative analysis of the on-state loss of the MMC (modularized multilevel converter) and bringing convenience for system optimization design.

The invention discloses a system combat ability quantitative analysis method based on a super network and an OODA ring theory. The method comprises: establishing a super-network model according to a combat system, the super network comprises four types of nodes and seven types of edges; the four types of nodes are respectively detection nodes VO, decision node VD, striking a node VA and a target node VT; wherein the seven types of edges are respectively a detection relationship ETO representing that the target node can be detected by the detection node; representing a cooperative relationshipEOD that the detection node sends the target information to the decision node; representing a command and control relationship EDA that the decision node directs the striking node to strike; representing a strike relationship EAT that the strike node attacks the target node; wherein the EOO represents the information transmission and sharing relationship of information sharing between the detection nodes, representing the superior-subordinate command relationship EDD of the superior-subordinate relationship between the decision nodes, and representing the cooperative strike relationship EAA ofthe strike nodes to strike the same target cooperatively; constructing an adjacent matrix according to the super network; and calculating the comprehensive capability of the system according to the adjacent matrix characteristic values.

The invention discloses a simulation system capable of reproducing soot evolution characteristics under a post-injection strategy of an engine, which comprises a soot generator, an electric cylinder controller, a computer control system, a Mckenna diffusion combustor fixed on a displacement bench and a pair of self-locking tweezers arranged above the Mckenna diffusion combustor, and is characterized in that a central steel pipe of the Mckenna diffusion combustor is connected to a gaseous fuel source through a pipeline, air inlet pores of a plurality of metal sintered plates at the periphery of the Mckenna diffusion combustor are all connected to an air inlet main pipeline which is connected with a nitrogen gas cylinder and an oxygen gas cylinder; a coiled pipe is connected to a constant temperature water tank; an in-line electric cylinder connected with the self-locking tweezers realizes connection with the electric cylinder controller through a motor and a programming data line, and model carbon black in a carbon black container is taken into a gas channel through a rotating steel brush under driving of a piston. The simulation system disclosed by the invention can facilitate to simplify research for formation and conversion mechanisms of soot generated under the post-injection strategy of the engine, thereby providing a scientific basis for preventing atmosphere environment pollution.

The invention discloses a forklift safety protection and intelligent training and examination system. The system comprises a training site, a forklift, a proximity sensor, a signal collector, a remote control, and a principal computer for monitoring. The proximity sensor is arranged within the boundary of the training site. The signal collector and the principal computer for monitoring are connected by means of wireless transmission. The forklift is internally equipped with a PLC, a forklift automatic braking device, a gray scale sensor and a flameout switch, wherein the PLC is arranged at the tail of the forklift, the flameout switch and the forklift automatic braking device are arranged inside the forklift, and the gray scale sensor is fixedly arranged under the forklift. With the system, the driving route information of the forklift can be collected in real time, the driving condition of the forklift can be displayed in real time and analyzed comparatively, the forklift can brake under emergency, and the objectivity of evaluation is promoted.

The invention discloses a plant growth environment adjusting system in an intelligent control system, and relates to the technical field of agriculture. The plant growth environment adjusting system comprises a monitoring unit. The output end of the monitoring unit is electrically connected with the input end of a multi-node input module. The monitoring unit comprises a temperature sensor, a soilhumidity sensor and a soil PH value sensor. The output end of the temperature sensor, the output end of the soil humidity sensor and the output end of the soil PH value sensor are all electrically connected with the input end of the multi-node input module. According to the plant growth environment adjusting system, the humidity, PH value and temperature in the plant growth environment can be adjusted in real time by an irrigation unit, a PH adjusting unit and a temperature control unit respectively, and therefore the real-time control over the plant growth environment is realized; in addition, under the cooperation of a comparing module and a PID closed-loop control module, the difference value comparison between current conditions in the environment and the normal value range is more accurate, and therefore it is ensured that the plant growth environment adjusting system is more suitable for adjusting the plant growth environment.

The invention relates to an underground space safety prevention and control system and method, the system comprises a monitoring service center, a plurality of monitoring node servers, a plurality of monitoring parts and a global collector, the monitoring service center is respectively connected with the plurality of monitoring node servers and the global collector, each monitoring node server is correspondingly connected with one monitoring part, and the global collector is connected with the plurality of monitoring parts. The system can achieve the timely safety prevention and control of the underground space, and can accurately monitor the topographic change of the underground space.

The invention discloses a surface gear machining measuring tool. A base is arranged at the bottom of a measuring tool body, a shaft seat is arranged in the middle of the base, a fixing part is arranged at the top of the shaft seat, a rotating shaft is arranged at the bottom end of the fixing part, a rotating disc is arranged at the top end of the rotating shaft, a sliding groove is formed in the periphery of the interior of the rotating disc, a sliding rod is arranged inside the sliding groove, a threaded rod is arranged at the top end of the sliding rod, a fixing sleeve is arranged on the outer side of the threaded rod, an adjusting groove is formed in the outer side of the fixing sleeve, the top of the rotating disc is provided with a surface gear, the rear side of the fixing part is provided with a first measuring tool body, second measuring tool bodies are arranged on the left side and the right side of the fixing part, and trundles are arranged at the bottom of the base. Accordingto the surface gear machining measuring tool, the threaded rod is fixedly connected with the fixing sleeve through threads, the operation is simple, the height of the fixing sleeve can be properly adjusted so as to meet the requirements of the surface gears with different thicknesses, the effects of being flexible, convenient and fast are achieved, the fixing effect of the fixing part is enhanced, and the accuracy of the measuring result is guaranteed.

The invention provides a Mars capture braking strategy calculation method and system, and relates to the technical field of spacecraft overall design, and the method comprises the steps: S1, collecting related data of a hyperbolic progressive vector entering Mars, earth pointing and sun pointing, and building an auxiliary coordinate system; s2, calculating and capturing a semi-major axis of an orbit through the established auxiliary coordinate system; s3, calculating the eccentricity rate of the captured orbit through the established auxiliary coordinate system; s4, calculating and capturing an orbit inclination angle, an ascending node right ascension and a near fire point argument through the established auxiliary coordinate system; and S5, calculating related included angles with the earth and the sun through the established auxiliary coordinate system, and carrying out contrastive analysis on conditions including energy and communication in the capture stage according to related data obtained through calculation. According to the method, the calculation speed of the captured orbit parameters and the design efficiency of the Mars capture strategy can be improved.