38results about How to "Data source is accurate" patented technology

The invention discloses a three-dimensional visual operation maintenance system of subway comprehensive pipelines, comprising a user management module, a data acquisition and storage module and a three-dimensional modeling module which are connected in sequence, wherein the three-dimensional modeling module is also connected with an operation and maintenance module and a three-dimensional displaymodule respectively. In an operation maintenance method based on the system, firstly subway pipeline data is extracted from drawings and is input into the data acquisition and storage module; and secondly, the three-dimensional modeling module establishes a three-dimensional model according to the subway pipeline data, comprehensive pipelines and subway scenes are displayed by the three-dimensional display module in a three-dimensional effect, and maintenance management is carried out on the subway comprehensive pipelines by the operation and maintenance module. By the maintenance system and the maintenance method, data sources are accurate, and the problem that the drawings does not conform to the reality is solved; and in the unified management mode, the space layout of all special pipelines can be mastered by scene roaming, the integrated browsing and control of the space of all the layers and all the pipelines of subway scenes is realized.

The invention discloses a safety assessment system for a river water environment of a plain river network, and belongs to the field of water environment safety assessment. By taking a DPSIR model as a theoretical basis, water environment safety assessment indexes are divided into five aspects of social and economic driving force, a pollution source and water resource development pressure, a water environment health present condition, a river service function and an environment supervision capability, and twenty assessment indexes including permanent population density, GDP per capita, a building land use proportion and the like are established. The water environment safety assessment process comprises the specific steps of obtaining a survey value for assessing an index of each layer of a river; determining an assessment standard value of the index; performing standardization processing of the survey value of the index; calculating an index score of a river water environment safety assessment index layer; calculating an index score of a river water environment safety assessment criterion layer; and calculating and assessing a river water environment safety index. According to the system, a scientific assessment method is established for the plain river network, and the water environment safety condition and problem of the plain river network can be quickly and effectively identified.

The invention discloses a remote presenting method, a terminal and a system. The system comprises a remote presenting terminal, multi-channel audio and / or video input / output equipment and a far-end terminal; the remote presenting terminal is provided with a multi-channel audio and video input / output interface, and is used for establishing a session with the far-end terminal, carrying out input / output position information interaction of a multi-channel audio and / or video bit stream and media capability consult, and establishing a media logic channel; and the inputting bit stream of input equipment of multi-channel audio input equipment and / or multi-channel video input equipment is encoded, based on the established media logic channel, according to the input / output position corresponding to the bit stream, the encoded bit stream is sent to the far-end terminal, the multi-channel audio and / or video bit stream from the far-end terminal is received, after the bit stream is decoded, according to the input / output position corresponding to the bit stream, the multi-channel audio and / or video bit stream is transferred into the audio output equipment and / or the video output equipment corresponding to a self-position for playing. By the adoption of the presenting method, the terminal and the system, problems of complex distribution, interflow, synchronization of the bit stream and the like in the existing remote presenting system are solved.

The invention provides a train air-condition energy consumption calculating system. The train air-condition energy consumption calculating system comprises an energy consumption parameter input module, a load and air-condition energy consumption estimation module and an air-condition actual energy consumption calculation module; the energy consumption parameter input module is used for collecting energy consumption parameters and inputting the collected energy consumption parameters into the load and air-condition energy consumption estimation module and the air-condition actual energy consumption calculation module; the load and air-condition energy consumption estimation module is used for calculating a train load value based on the energy consumption parameters and estimating air-condition energy consumption based on the obtained load; and the air-condition actual energy consumption calculation module is used for calculating the actual operation energy consumption based on the energy consumption parameters. According to the train air-condition energy consumption calculating system, the energy consumption calculated by a high-speed train air-condition energy consumption calculating system is more accurate, a theoretical basis can be provided for reasonable design of the air-condition and energy-saving optimization design of a high-speed train is benefitted.

The invention relates to a satellite-aviation-ground combined forest fire trend early warning method, device and system of a power transmission line channel, and belongs to forest fire trend early warning of the power grid. According to the method, a remote sensing satellite, an unmanned aerial vehicle / helicopter and a power grid online monitoring device are used for monitoring the fire point position, the landform, the vegetation type and the microclimate; a set value of each parameter is obtained through a data receiving and processing module, a forest fire development trend vector diagram is obtained through calculation and deduction via a Rothermel model and a Huygens model, early warning information is obtained through power grid GIS superposition analysis, and the early warning information is sent to a mobile terminal of a manager of an equipment operation and maintenance department. By constructing the satellite-aviation-ground combined forest fire trend early warning system, investment of field operation and maintenance personnel can be reduced, the forest fire monitoring area can be expanded, the forest fire development trend can be quickly predicted, and an objective, accurate and stable data source can be provided for the power grid forest fire development trend.

The invention discloses a method for measuring actual distance of a human body based on a cornea image. The method comprises the following steps: (1) acquiring a front photo image with an eye black part or capturing a frame of front picture with the eye black part from a video; (2) detecting and positioning the eye black part; (3) determining the transverse maximum length of the eye black part; (4) determining the proportionality coefficient of an actual linear geometric size and the front image linearity; and (5) measuring actual distance between any two points in the photo image or a frame of picture, and multiplying the actual distance by the proportionality coefficient eta to obtain actual distance between two corresponding points of the human body. The invention also discloses a method for customizing a spectacle frame. In the invention, the transverse maximum length of the eye black part is measured to acquire the proportionality coefficient of an actual size and an image size, and thus absent measurement of any two points of the human body and an image or video comprising the human body can be carried out; and the data calculation is accurate, and the application is wide.

The invention relates to a pollutant detection system, a method and a storage medium, and belongs to the technical field of unmanned planes. The pollutant detection system comprises a monitoring terminal and an unmanned plane. The unmanned plane comprises a controller, an attitude detection module, a wind direction and wind speed detection module, a range finding module, a positioning module, a temperature and humidity detection module, a pollutant detection module, and a first communication module. The temperature and humidity detection module, the pollutant detection module, the attitude detection module, the wind direction and wind speed detection module, the range finding module, the positioning module, and the first communication module are all connected to the controller; and the first communication module communicates with the monitoring terminal. The pollutant detection system utilizes the flexibility and operability of the unmanned plane; the unmanned plane is used to detect the concentrations of pollutants in the high altitude; a pollutant distribution pattern can be obtained, the pollutants in the high altitude can be monitored, and accurate and reliable data is providedfor the scientific and reasonable treatments on air pollution.

The invention provides a locomotive positioning system based on a track circuit and DGPS, and the system comprises a ground device and a vehicle-mounted device, the ground device comprises a DGPS base station, a tracking and positioning server, a communication server, an interlocking state collecting server, a 3G base station and a plurality of tracking and positioning client, the vehicle-mounted device comprises a vehicle-mounted positioning main engine, 3G data transmission unit, a DGPS module, a display, a sensor group, a car team detector and a plurality of electron connectors. A locomotive positioning method based on the track circuit and DGPS is also provided. The system and the method can raise the detection accuracy and precision for locomotive position and offer powerful and exact data source for further optimizing the scheduling policy.

The invention discloses a novel portable soil moisture monitoring instrument based on a GPS (Global Position System) / GPRS (General Packet Radio Service) / GSM (Global System for Mobile Communications). The novel portable soil moisture monitoring instrument comprises an information acquisition module, a processing control module, a display module, a remote transmission module and a power module, wherein the information acquisition module is used for acquiring soil volumetric moisture content as well as longitude, latitude and time information; the processing control module is used for controlling collected soil moisture content and displaying and sending the collected soil moisture content; the display module is used for displaying soil moisture content data and the longitude, latitude and time information in real time; the remote transmission module comprises a GPRS / GSM module and a button selecting module and is used for sending the soil volumetric moisture content, longitude, latitude and time to a central station or mobile phone; and the power module is used for providing a plurality of paths of reliable direct current voltage. The novel portable soil moisture monitoring instrument integrates soil volumetric moisture content measurement, local display, remote transmission and geographical location and has the advantages of high measurement precision, multifunction and portability. The problem existing in the traditional soil moisture content monitoring is solved.

The invention discloses a method for providing a public transport passenger flow distribution thermodynamic diagram, which comprises the following steps of: 1, receiving a passenger flow thermodynamicdiagram playing request of a set time period and a set line of a user; Step 2, acquiring a bus record on the set line within the set time period; Step 3, preprocessing the bus record to obtain an effective bus record; 4, the effective bus records are processed, the bus position of each time section and the passenger flow number of each time section are determined, and the time sections are a plurality of discrete time points formulated according to needs; And 5, drawing the thermodynamic diagram of each time section, and displaying the thermodynamic diagrams on the map in an overlapping manner. According to the method, the integrity of passenger flow data is ensured, interference data is effectively filtered, the accuracy of thermodynamic diagram display results is improved, meanwhile, the method is combined with geographic positions, the method is clearer, and the user experience is improved.

The invention relates to a micro current sensor precision calibration method and device, computer equipment and a storage medium. The method comprises the following steps: processing a first measurement distance and a second measurement distance of three TMR chips and each magnetic induction intensity value measured by each TMR chip for an electrified current-carrying wire located at a preset position by adopting a particle swarm model to obtain an optimal solution, and confirming the optimal solution as a first distance calibration value and a second distance calibration value; and based on the first distance calibration value and the second distance calibration value, carrying out current measurement of the micro current sensor to complete sensor precision calibration. Therefore, an accurate data source is provided for the current measurement of the miniature current sensor, the measurement error of the miniature current sensor is reduced, and the accuracy of the current measurementis improved.

The embodiment of the invention provides a data collaborative acquisition method and system. The method includes the following steps of: sending a collaborative acquisition request to each neighbor node in a collaborative neighbor node candidate set; generating a collaborative acquisition negotiation result based on the received collaborative acquisition feedback sent by all neighbor nodes that judge the data acquisition; and sending the collaborative acquisition negotiation result to each neighbor node in the collaborative acquisition neighbor node set to ensure that the neighbor nodes carryout data collaborative acquisition according to the collaborative acquisition negotiation result. The method and the system provided by the embodiment of the invention can maximize the global acquisition utility in a negotiation manner according to potential threats and / or acquisition tasks, further adjust the local acquisition strategy in real time, reduce computing resources, storage resources and transmission resources consumed by comprehensive data acquisition, and provide accurate data sources for safety monitoring and threat discovery.

The invention relates to a power quality monitoring terminal for a switch-in electronic mutual inductor. The power quality monitoring terminal has the technical characteristics that a fiber transceiver and a CPU are included and connected; the fiber transceiver is connected with the electronic mutual inductor in a process level through optical fibers and used for receiving real-time sampling data output by the electronic mutual inductor and sending the sampling data to the CPU; and the CPU performs electrical energy analysis and calculation to the received real-time sampling data, and uploads the power quality data obtained through the calculation to a station control level through a network interface. The power quality monitoring terminal has a reasonable design, realizes the function that a plurality of outgoing lines can be monitored simultaneously through one monitoring terminal, reduces the equipment cost, effectively avoids the influence of electromagnetic interference, is greatly improved on stability, reliability, safety and other aspects, meets the accuracy required by the power quality monitoring and analyzing, and meets the requirement for power quality monitoring of an intelligent power network.

The invention provides a multi-functional electric meter with reactive power compensation and relay protection functions. Its functions include measuring and monitoring indoor temperature and humidity, three-phase voltage, current, phase sequence, frequency, power, harmonics, reactive power Compensation, relay protection. The main components of the multi-function electric meter are: 1. Sampling unit, 2. Analog-to-digital conversion unit, 3. Calculation and judgment unit, 4. Display unit, 5. Command execution unit, 6. Data storage unit. The sampling unit includes temperature sensors, humidity sensors, current detectors, voltage detectors, etc.; the analog-to-digital conversion unit converts the collected physical quantities into digital quantities; the calculation and judgment unit includes a calculation part and a judgment part, and these two parts are processed by two The computer calculates and judges the digital data, and this design can shorten the time from data acquisition, processing to display. The display unit is not only displayed on the LED screen of the multi-function meter, but also displayed on the main control machine of the monitoring system; the command execution unit includes automatic regulation and manual regulation.

The invention discloses a power grid maintenance standard operation cost forming method. The method includes the steps that firstly, a standard operation library is established; secondly, standard operation quantity and valuation models are established on the basis of the standard operation library; thirdly, a standard operation cost pool is formed; fourthly, standard operation cost and historical actual cost are analyzed to form deviation; fifthly, through a deviation analysis result, dynamic correction is performed to adjust the standard operation cost. According to the power grid maintenance standard operation cost forming method, on the basis of the typical standard operation instruction library, all the operation quantity and valuation models are established, the power grid maintenance standard operation cost pool is formed, deviation analysis is performed through the actual cost and the standard operation cost, and therefore dynamic correction is performed on the power grid maintenance standard operation cost pool, and power grid maintenance standard operation cost is comprehensively, systematically, reasonably and effectively managed and controlled in a lean mode.

The invention belongs to the technical field of a remote sensing technology apparatus and, in particular, relates to an unmanned aerial vehicle (UAV) aviation remote sensing data acquisition system. The invention discloses the UAV aviation remote sensing data acquisition system characterized in that for a one-key take-off automatic aerial photographic system, high molecule polymerization damping balls are introduced to make the condition of an IMU sensor more stable, the FPGA-based multi-channel micro high-speed data storage technology is adopted to distribute high-speed serial data to a five-way parallel processing unit for data storage, a five-way SATA interface is adopted, and a solid state disk is used for data high-speed storage. The system of the invention has the beneficial effects of realizing absolutely independent time reference measurement of various cameras, and coordinately controlling the simultaneous exposure of the multiple cameras by parallel control.

The invention discloses a driver injury grade prediction algorithm, which collects driver injury grade and influencing factor data to form a training sample data set. The training sample data set is divided into learning data and to-be-tested data, and the learning data and to-be-tested data are discretized to obtain standardized learning data and to-be-tested data. According to the standardized learning data, the naive Bayesian network structure diagram of driver injury grade is established. The conditional probabilities of each factor under different injury grades and the prior probabilitiesunder different injury grades are obtained by calculating the normalized learning data with simulation software, and then the driver injury prediction algorithm based on Naive Bayesian Model is constructed. The driver injury prediction algorithm based on naive Bayesian model is constructed by inputting normalized data to be tested, and the prediction results are verified, which can provide a simpler and more effective data processing method and improve the accuracy of the prediction algorithm.

The invention provides a server health degree evaluation method which comprises the steps: S1: acquiring a network element indexes of a server, S2: acquiring an alarm level of each network element index and an index threshold of each alarm level according to index threshold monitoring information of a network manager, S3: acquiring a performance value of each network element index in real time, calculating a health degree reduction score of each network element index according to each alarm level, the index threshold of each alarm level and the performance value of each network element index when the performance value of each network element index does not exceed an upper index threshold limit or is not below a lower index threshold limit, and S4: calculating a health degree of the server, wherein the index threshold comprises the upper index threshold limit and / or the lower index threshold limit. The server health degree evaluation method can reflect the health degree of the server more scientifically, actually and effectively; and in addition, an evaluation result obtained by the method can help network management personnel to quickly find out the server more likely giving an alarm or giving a serious alarm.

The embodiment of the invention discloses a space division multiplexing optical fiber characteristic parameter monitoring method and device, equipment and a storage medium. According to the embodiment of the invention, the method comprises the steps of obtaining a time domain coefficient of each sub-filter of a MIMO equalizer, obtaining the frequency response of each sub-filter according to the time domain coefficient of each sub-filter, and obtaining a frequency response matrix of the MIMO equalizer, and obtaining space division multiplexing optical fiber characteristic parameters of each space channel according to the frequency response matrix. According to the embodiment of the invention, the time domain coefficients of the sub-filters are obtained from the MIMO equalizer to calculate the characteristic parameters in the space division multiplexing optical fiber, the environment change can be tracked, the characteristic parameters of the space division multiplexing optical fiber can be monitored in real time, the real-time measurement of a dynamic link is realized, the overall characteristics of a multi-span optical fiber link are described, and according to the embodiment of the invention, the coefficient is obtained from the MIMO equalizer, the data source is accurate, the interference of other modes can be eliminated, and the accuracy of the obtained characteristic parameter is higher.

The invention relates to the technical field of aircraft assembly, in particular to a calibration auxiliary method for installation of aircraft avionics equipment, and the method comprises the steps: calculating the simulated pose coordinates of an adjustment point through avionics equipment simulated pose coordinate calculation based on a pitch angle and a roll angle; solving an optimal gasket specification type selection scheme of the adjustment points through pose adjustment optimization; and finally, adjusting the gasket according to the optimal scheme. Through the method, the problems of low efficiency, high labor intensity and large personal error can be effectively solved.

The invention discloses a method for providing a public transport passenger flow distribution thermodynamic diagram, which comprises the following steps of: 1, receiving a passenger flow thermodynamicdiagram playing request of a set time period and a set line of a user; Step 2, acquiring a bus record on the set line within the set time period; Step 3, preprocessing the bus record to obtain an effective bus record; 4, the effective bus records are processed, the bus position of each time section and the passenger flow number of each time section are determined, and the time sections are a plurality of discrete time points formulated according to needs; And 5, drawing the thermodynamic diagram of each time section, and displaying the thermodynamic diagrams on the map in an overlapping manner. According to the method, the integrity of passenger flow data is ensured, interference data is effectively filtered, the accuracy of thermodynamic diagram display results is improved, meanwhile, the method is combined with geographic positions, the method is clearer, and the user experience is improved.

The invention discloses a water quality section pollution contribution rate calculation method based on a water quality model and a pollutant reduction mechanism. The water quality section pollution contribution rate calculation method comprises the following steps: S1, identifying a pollution source; s2, constructing a one-dimensional water quality model, adding a pollution source into the water quality model, and simulating to obtain the pollutant concentration of each section in the riverway; s3, based on a pollutant reduction mechanism, calculating the reduction amount of pollutants of each pollution source in the river channel operation process; s4, obtaining the reduction quantity of all pollution sources at the water quality section; s5, obtaining the pollutant flux of the pollution source at the water quality section; S6, dividing the total flux of the section by the flux of the pollution source at the section to obtain the pollution contribution of the section. The method has the technical effects and advantages that the one-dimensional water quality model is constructed, and the pollution contribution of the cross section is obtained by dividing the total flux of the cross section by the flux of the cross section of the pollution source, so that the uncertainty caused by the model structure in the aspect of river channel parameter simulation is reduced.

The application relates to an updating method and device of running environment data, a unit and computer equipment. The method comprises the following steps: acquiring running environment data of each region; comparing whether the running environment data is same as historic running environment data; when the running environment data is different from the historic running environment data, updating the running environment data of the region to a database. By adopting method disclosed by the application, the workload for manually importing the data can be reduced, the working efficiency is improved, more accurate data source is provided for a simulation platform, and the accuracy of a simulation result is improved.

The invention discloses a telepresence method, terminal and system. The system includes: a telepresence terminal, a multi-channel audio and / or video input / output device, and a remote endpoint; the telepresence terminal has a multi-channel audio and video input / output interface , used to establish a session with a remote endpoint, perform multi-channel audio and / or video stream input / output position information exchange and media capability negotiation, and establish a media logical channel; for multiple audio input devices and / or multiple video inputs The input code stream of the device is encoded, and based on the established media logic channel, it is sent to the remote endpoint according to the input / output position corresponding to the code stream, and the multiple audio and / or video code streams from the remote endpoint are received, decoded and processed according to the The input / output position corresponding to the code stream is transferred to the audio output device and / or video output device at its corresponding position for playback. The present invention solves the problems of complex deployment, intercommunication, code stream synchronization and the like in the existing telepresence system.

The invention discloses a method for measuring the actual distance of a human body based on an eye cornea image, which comprises the following steps: Step 1. Acquiring a frontal photographed image with black parts of eyes or intercepting a frame of frontal pictures with dark parts of eyes from a video Step 2, detect and locate the black part of the eye; Step 3, determine the horizontal maximum length of the black part of the eye; Step 4, determine the proportional coefficient between the actual linear geometric size and the linearity of the frontal image; Step 5, measure any two in the photographed image or a frame The actual distance between two points can be obtained by multiplying the actual distance by the proportional coefficient η to obtain the actual distance between the corresponding two points of the human body. The invention also discloses a method for customizing the spectacle frame. The invention measures the maximum lateral length of the dark part of the eye, and then obtains the actual size and the proportional coefficient of the image size, so that the alibi measurement can be performed on any two points in a human body, an image including a human body, or a video, and the data calculation is accurate and widely used.

The invention discloses a three-dimensional visual operation maintenance system of subway comprehensive pipelines, comprising a user management module, a data acquisition and storage module and a three-dimensional modeling module which are connected in sequence, wherein the three-dimensional modeling module is also connected with an operation and maintenance module and a three-dimensional displaymodule respectively. In an operation maintenance method based on the system, firstly subway pipeline data is extracted from drawings and is input into the data acquisition and storage module; and secondly, the three-dimensional modeling module establishes a three-dimensional model according to the subway pipeline data, comprehensive pipelines and subway scenes are displayed by the three-dimensional display module in a three-dimensional effect, and maintenance management is carried out on the subway comprehensive pipelines by the operation and maintenance module. By the maintenance system and the maintenance method, data sources are accurate, and the problem that the drawings does not conform to the reality is solved; and in the unified management mode, the space layout of all special pipelines can be mastered by scene roaming, the integrated browsing and control of the space of all the layers and all the pipelines of subway scenes is realized.

The present invention provides a train air-conditioning energy consumption calculation system, which includes an energy consumption parameter input module, a load and air-conditioning energy consumption estimation module, and an air-conditioning actual energy consumption calculation module, wherein the energy consumption parameter input module is used to collect energy consumption parameters and The collected energy consumption parameters are input into the load and air-conditioning energy consumption estimation module and the air-conditioning actual energy consumption calculation module; the load and air-conditioning energy consumption estimation module is used to calculate the train load value according to the energy consumption parameters and estimate the air-conditioning energy consumption according to the obtained load value; The actual energy consumption calculation module of the air conditioner is used to calculate the actual energy consumption of the air conditioner according to the energy consumption parameters. The invention makes the energy consumption calculated by the high-speed train air-conditioning energy consumption calculation system more accurate, can provide a theoretical basis for the rational design of the air-conditioner, and is beneficial to the energy-saving optimization design of the high-speed train.

The invention discloses a transformer model measurement and analysis method, which comprises the following steps: respectively acquiring a vibration signal and temperature of transformer equipment through an acceleration sensing module and a temperature sensing module, and carrying out feature extraction on the vibration signal; acquiring a load value on the transformer equipment by using a power meter; and training a neural network according to the extracted vibration signal features, temperature and load values, generating a measurement network model in combination with a genetic algorithm, and obtaining a visual analysis report through the measurement network model. According to the method, the corresponding measurement network model is obtained by combining the vibration signal, the temperature and the load and performing matching based on the neural network, so that a transformer model is suitable for the adaptive matching process of different acquired data, and a corresponding measurement basis is provided for dynamic analysis of the transformer; and in the data collection process, an acceleration sensing module, an anti-aliasing low-pass filter circuit and an ADS analog-to-digital converter are designed to provide an accurate data source for a transformer model.