116results about How to "Improve timeliness and accuracy" patented technology

The invention provides a customer data management system based on a block chain. Participants are connected to a financial union chain through a corresponding block link-in node, so as to realize theuplink of customer data, and realize the inquiry, addition, modification and synchronization of customer data according to the customer intelligent account book and the customer intelligent contract.The financial union chain designs a sectional protection lock for the customer data on the chain to realize the circulation of the customer data among the set participants; The client intelligent account book comprises a client information access authority, a newly added authority and a client information maintenance authority, wherein the client intelligent account book comprises a client information access authority, a client information access authority and a client information maintenance authority. Customer Intelligence Contract includes Customer Information Addition Service, Customer Information Maintenance Service and Customer Information Change Notification Service. The invention realizes the non-tampering, encrypted storage and privilege access of the uplink information, which canensure the privacy of the customer information and realize the cross-organization sharing of the public basic customer information on demand, such as the mobile phone number is shared between the operator and the government department, and between the operator and the bank.

The invention provides a city canyon street pollutant real-time estimation method to estimate concentration values of different pollutants mainly generated by motor vehicle tail gas emission in a city canyon street in real time. According to the method, a model is used for simulating the road traffic state, and traffic parameters are estimated in real time; in combination with emission factors of a motor vehicle, road pollutant emission is estimated; a dispersion model is used for estimating pollutant dispersion concentration in street air in real time; finally, the calculated pollutant concentration values are displayed on a map in real time. According to the method, a GPS module of a smartphone is utilized for being combined with a VSP module to calculate the motor vehicle emission factors, the real-time property and accuracy of the model are improved in a convenient and low-overhead mode, and by means of a map interface, the calculation result is converted into intuitive and visual pollutant concentration data for users to refer to.

The invention belongs to the technical field of machine vision and image processing and in particular relates to a traffic sign detection method based on classification template matching. The problems that the conventional traffic sign identification method is complex in operation process, low in real-time property and high in light and image quality requirements are solved. The method comprises the following steps of: segmenting areas containing traffic signs in a photographed image according to different color areas, namely classifying the traffic signs according to colors; (2) screening communicating areas in the image through the shape and area characteristics after the color classification, and positioning the sign area; and (3) identifying through a template matching method. The method has high operability and is insensitive to the light change, and when a source image is blurred, a high identification accuracy rate can be guaranteed, and the method is high in real-time property and can be used for an automatic traffic sign detection device on a vehicle.

The invention provides a method for accurately controlling the rotating speed of a fan and relates to the field of system heat dissipation. The method comprises the steps that difference values of actual temperatures read by a plurality of sensors and a preset temperature are simultaneously calculated and compared, the fan PWM capable of meeting the need for heat dissipation of all monitored heat emitting points at the same time is determined through certain mathematical calculation, and finally the PWM is transmitted to the fan through a mainboard to achieve the real-time monitoring and quick feedback control over the rotating speed of the fan.

The invention discloses a question extension method and device, a storage medium and a terminal. The question extension method comprises the steps of obtaining a question to be extended, performing word segmentation on the question to be extended to obtain multiple original words; performing related word substitution on the multiple original words so as to obtain multiple extended questions obtained by combining the original words and the related words or combining the related words; judging the effectiveness of the combination of the related words and adjacent words in each extended question;according to the judgment result, filtering the multiple extended questions. According to the technical scheme, the extended questions can be automatically generated, and the effectiveness of the extended questions is ensured.

The invention provides a short-time proximate value weather forecasting system with the ultrahigh resolution ratio (cloud-resolving scale). The short-time proximate value weather forecasting system comprises a preprocessing subsystem, an assimilating subsystem, a forecasting subsystem and a postprocessing subsystem. The preprocessing subsystem is used for obtaining a background field, a boundary field and a radar retrieved wind field of a target area with the to-be-forecasted weather and generating a cloud analysis field according to the background field and the boundary field. The assimilating subsystem is used for conducting variation assimilation processing on the radar retrieved wind field and the cloud analysis field which are obtained by the preprocessing subsystem to obtain an initial field, and the initial field is subjected to cloud analysis processing to obtain a three-dimensional lattice position field. The forecasting subsystem is used for conducting data processing according to the three-dimensional lattice position field to obtain forecasting data. The postprocessing subsystem is used for generating comprehensive forecasting information according to the forecasting data. According to the short-time proximate value weather forecasting system provide by the invention, the fine forecasting level of a small-scale convection system in the to-be-detected area can be effectively increased.

The invention discloses a channel quality indicator correction method and a channel quality indicator correction device. The method comprises the following steps of: acquiring an estimated receiving signal to noise ratio (SNR), performing cyclic redundancy check (CRC) detection after the processing of a transmission channel, and counting the number of CRC errors; and correcting the SNR according to the number of the CRC errors, and determining a recommended modulation format (RMF) and a recommended transmission block size (RTBS) for reporting according to the corrected SNR; or obtaining an initial transmission block index according to the SNR, correcting the transmission block index according to the number of the CRC errors and determining the RMF and the RTBS for reporting according to the corrected transmission block index. By the method and the device, the real-time and accuracy of channel quality indicator (CQI) reporting can be improved by counting the number of the CRC errors to correct the estimated SNR or the obtained transmission block size; the method and the device are simply designed and convenient to implement; and the receiving SNR or the transmission block index is corrected at two regulation levels so as to achieve control flexibility.

The invention discloses a method for identifying gas based on the compressed sensing theory. The method includes the steps that compressed data are collected in an undersampled mode; the collected compressed data are reconstructed to acquire reconstructed data; the reconstructed data are utilized to train a back-propagation neural network, and the trained back-propagation neural network is stored; data to be detected are input to the trained back-propagation neural network, and the trained back-propagation neural network identifies the data to be detected to achieve qualitative identification of the gas. By the adoption of the method for identifying gas based on the compressed sensing theory, the problems that a gas detecting method in the prior art is large in transmission and storage data amount and inaccurate in identification are solved, and the goal of achieving accurate qualitative identification through small data amount is achieved.

A system and method is provided to allow users to receive and transmit real-time traffic flow information. A service provider can utilize information gathering infrastructure to receive, store, and transmit the real-time traffic data to groups or individual users. An information-generating subscriber can provide information required to determine road traffic conditions using a cellular telephone. A system of incentives is provided to overcome the reluctance of users to transmit their individual traffic data to the service provider by assigning some amount of positive points for data transmission to a central network. Users who choose only to receive data are assigned some amount of negative points. Points are converted during the billing process to fees for using the system, whereby users who both transmit and receive data ultimately pay less for utilizing the system than users who choose only to receive data.

The invention discloses an equal-precision frequency measuring circuit and a frequency measuring method thereof, wherein the circuit comprises a first counter, a second counter and a frequency division counter; a tested signal is respectively connected with clock input ends of a first D trigger and a second D trigger; a trigger end of the first D trigger is connected with a control signal START, and an output end of the first D trigger is connected with an enabling end of the first counter; the trigger end of the second D trigger is connected with the control signal STOP, and the output end of the second D trigger is connected with the enabling end of the second counter to realize synchronous control in the raising edges of the control signal and the tested signal; an output signal of the frequency division counter is connected with the clock input end of the first counter, and the tested signal is connected with the clock input end of the second counter. The equal-precision frequency measuring circuit and the frequency measuring method provided by the invention can eliminate the error in the number of the pulse signals caused by a counting method in unit time and remarkably improve the accuracy and real-time performance for collecting rotation speed signals.

The invention discloses a live working safety early warning system which includes a sign data monitoring device worn on a live working person and used for collecting sign data of the live working person in operation; a safety distance monitoring device located on a tower pole and used for obtaining the sign data of the live working person from the sign data monitoring device, monitoring whether the live working person exceeds an alarm area, and giving an alarm when the live working person exceeds the alarm area or the sign data is abnormal. The live working safety early warning system automatically gives real-time warning on live working, improves the accuracy and real-time performance of safety distance detection, and ensures the safety of live working person.

The invention relates to the technical field of vehicle electronics, in particular to a vehicle fuel refuelling prompting system and method based on internet of vehicles. The method comprises the following steps: acquiring cloud map data and vehicle position information; calculating the distance between a vehicle and the nearest filling station according to the cloud map data and the vehicle position information in real time; receiving a residual fuel amount signal and an instantaneous fuel consumption value signal, and calculating endurance mileage of the vehicle; judging the existence of a fuel exhaustion risk according to the endurance mileage and the distance value of the nearest filling station, and performing fuel deficiency warning when the fuel exhaustion risk exists. A route from the vehicle to the nearest filling station is calculated according to the distribution situation of filling stations on the periphery; the route between the vehicle and the nearest filling station is compared with the endurance mileage; whether to perform the fuel deficiency warning or not is judged, so that an anchor phenomenon caused by the fact that the filling station does not exists at a long distance on the periphery is avoided.

The invention provides a maximum power tracing optimization control method of a low-wind-speed area of a wind generating set. The maximum power tracing optimization control method of the low-wind-speed area of the wind generating set mainly comprises three steps of acquiring and filtering a wind speed signal, designing an improved controller, and optimizing controller parameters. A signal acquisition part adopts a pulse laser radar to measure wind speeds of a wind wheel at different heights and different positions, and adopts an adaptive kalman filter algorithm to filter the wind speed signal;an improved controller design part introduces a super-twisted high-order sliding mode algorithm on the basis of traditional optimum torque control, so that a rotary speed tracing performance is improved; and a controller parameter optimization part adopts an improved particle swarm optimization algorithm, so that the defects that a conventional particle swarm optimization algorithm is easy to cause premature convergence and an oscillation phenomenon produced near a globally optimal solution in the later period of the algorithm are overcome. According to the maximum power tracing optimizationcontrol method of the low-wind-speed area of the wind generating set provided by the invention, the real-time changed wind speed can be effectively measured, and the performance of wind wheel rotary speed tracing real-time wind speed can be improved, so that the wind energy utilization rate is improved, and the method has a certain practical value.

The invention discloses a base station information acquiring and processing method for base station positioning, comprising the following steps: firstly, rules for sports cars and road selection of acquired vehicles, rules for acquiring frequency of all acquisition terminals, rules for uploading base station information of the acquisition terminals and rules for storing the base station information in a database of a central service platform are made; secondly, the central service platform carries out statistics and management on the acquired base station information; and thirdly, field operators request to download grid information to the central service platform by PND (Pictorial Navigation Display) navigation equipment, and displays the grid information in the form of a map on a screen of the PND navigation equipment. In the method, a mode of combining the acquired vehicles and the central service platform is adopted, and the real-time property and the accuracy of acquiring the base station information are enhanced, so that the field operators can know the condition of respective sports cars in real time, the completion condition of the base station information acquisition of all city regions can be intuitively reflected, the working efficiency of the field operators is improved and the expenditure of a project is reduced.

The invention relates to a device for judging and displaying the fall point of badminton/tennis, which comprises a badminton/tennis, a first fall point judging device, a second fall point judging device and a control device, wherein, a triggering device is arranged on the badminton/tennis; the first fall point judging device and the second fall point judging device are respectively arranged on the inner and the outer sides of a sideline of a court for the badminton/tennis, and can be triggered when being in contact with the triggering device; and the control device can forbid the other fall point judging device when either of the fall point judging devices is triggered. The invention also relates to a method for judging the fall point. Being implemented, the device and method for judging and displaying the fall point of badminton/tennis have the benefits as follows: the triggering device is arranged on the badminton/tennis, the fall point judging devices are respectively arranged along the inner side (inside the court) and the outer side of the sideline of the court, and all the fall point judging devices are forbidden after a first fall point of the badminton/tennis triggers the corresponding fall point judging device, so that the fall point of the badminton/tennis can be judged automatically and instantaneously, and the device is convenient to use.

The invention relates to a binocular vision obstacle avoidance wheeled robot based on SLAM. The robot includes a chassis frame, wheels arranged on the chassis frame, driving means for driving the wheel movement, A low layer control board of that stm32 is arrange on the chassis frame, an NVIDIA tx2 development board, a binocular vision camera, a power supply device for supplying power to the stm32bottom control board and the NVIDIA tx2 development board, an encoder and a posture sensor for detecting the movement speed and the displacement of the robot; The stm32 bottom layer control board andthe binocular vision camera are respectively electrically connected with the NVIDIA tx2 development board; The driving device, the encoder and the attitude sensor are electrically connected with the bottom control board of the stm 32, respectively. The robot provided by the invention has the advantages of high precision, good real-time performance and is not easy to be disturbed by environment.

The invention discloses a dynamic positioning monitoring method and system based on speech recognition. The method comprises the steps of obtaining current position data through real-time positioning; inputting a speech signal, and performing preprocessing to obtain a speech digital signal; performing feature parameter extraction based on a linear prediction cepstrum coefficient (LPCC) on the speech digital signal, and obtaining speech signal parameters; building a speech template base composed of target sound templates; constructing an artificial neural network model, judging whether abnormity exists or not on the basis of recognition of speech feature parameters obtained through the built speech template base, and generating and sending a control signal when it is determined that abnormity exists; according to the control signal, sending the current position data. The system comprises a GPS module, a speech sensing module, a control module and a GSM module. The input speech signal can be recognized and judged, whether the danger condition exists or not is judged, the current position data of the user obtained through positioning can be sent for the first time, and monitoring real-time performance and accuracy are improved.

The invention discloses a file uploading monitoring method. The method includes the steps of obtaining file uploading information of a data acquisition subsystem within a statistical period; determining whether the data acquisition subsystem is in normal operation or not in the statistical period according to the obtained information; if not, performing alarm processing. The file uploading monitoring method can automatically monitor that whether the file uploading processing of the data acquisition subsystem is in normal operation or not, thereby improving the timeliness and the accuracy of troubleshooting of the data acquisition system. The invention also discloses a file uploading monitoring system.

The invention discloses an intelligent crop pest measuring and reporting system based on the internet of things. The system comprises a remote data center and at least one measuring and reporting devices; each measuring and reporting device comprises a support and a main control unit, an image collection unit, a trapping unit, an air injection unit, an environment monitoring unit and a data transmission unit which are fixed to the support; the image collection unit is located above the trapping unit and faces the trapping unit; the air injection unit is located at one side of the trapping unit and faces the trapping unit; the main control unit is connected with the image collection unit, the trapping unit, the air injection unit, the environment monitoring unit and the data transmission unit; the data transmission unit is connected with the remote data center. According to the intelligent crop pest measuring and reporting system based on the internet of things, unattended intelligent control is achieved, the intelligence and accuracy of hazard prediction and forecast of crop pests can be improved, population dynamics are monitored and predicted in time, damage of the pests can be controlled by scientifically and reasonably adopting measures, the pesticide application dose and environmental pollution are reduced.

The application provides a positioning method and a terminal device. The method comprises the following steps: when detecting a positioning issuing instruction, calling multiple accessed positioning service SDKs in advance, and issuing a positioning request o multiple positioning servers corresponding to the multiple positioning service SDKs; receiving multiple sets of positioning data returned by the multiple positioning servers; and selecting one set of positioning data from the multiple sets of positioning data as a positioning result according to a preset strategy. The positioning function of applications is no longer restricted to one location service, but can rely on a variety of positioning services to satisfy the user demand. Positioning data returned by different positioning services is used according to the actual demand. The precision and efficiency of the positioning function of applications can be improved.

The invention discloses a method for obtaining the service condition of an access channel. The method comprises the following steps that: a use parameter of the access channel is recorded in the random access process; after the random access is successful, the recorded use parameter is up-loaded. The invention also discloses user equipment and a device for obtaining the service condition of the access channel. The invention can obtain the practical service condition of the current access channel at any time in the network operating process, thereby improving the timeless and accuracy of the obtained information; meanwhile, the invention obtains the service condition of the access channel without the on-site detection operation, thereby saving manpower and physical resources and lowering the cost of network maintenance.

The invention discloses a partial discharge electro-acoustic signals synchronous monitoring device for a CPLD (complex programmable logic device)-based transformer. The device comprises a CPLD control module, as well as a sensor module, a signal conditioning module, a four-channel synchronous sampling ADC (analog to digital converter), a deserializer module, an FIFO (first in first out) storer, a PCI (peripheral component interconnect) bus interface circuit and a host computer which are respectively connected with the CPLD control module. After the device is used, the signal conditioning, the synchronous A/D (analog to digital) sampling and the data placement are carried out on a plurality of electro-acoustic signals generated by the partial discharge of the transformer by the CPLD control signal conditioning module, the four-channel synchronous sampling ADC and the FIFO storer, and the electro-acoustic signals are uploaded to the host computer through a PCI bus to be comprehensively analyzed and processed, so that the wideband electro-acoustic signals can be synchronously monitored on the line, the integrated partial discharge signal characteristic can be timely obtained, the monitoring veracity can be improved, and the device is high in reliability, high in anti-jamming capability, and stable to run.

The invention discloses a power battery overheating determination method, a power battery overheating determination device, and a vehicle having the same. The power battery overheating determination method comprises the following steps: acquiring current value of a power battery in a predetermined time period; calculating thermal load value of the power battery according to the current value, and correcting the thermal load value; acquiring current temperature; determining the charging current limited value or the discharging current limited value of the power battery according to the corrected thermal load value and the current temperature; and carrying out the charging or discharging control of the power battery according to the charging current limited value or the discharging current limited value. The power battery overheating determination method is advantageous in that the thermal load value and the current temperature of the power battery can be calculated in a real-time manner, and therefore the charging or discharging control can be carried out by determining the current limited value of the power battery according to the thermal load value and the current temperature, the prevention object can be realized, the regular correction of the thermal load value of the battery can be realized, the real-time performance and the accurate performance of the determination can be improved, the battery can be well protected, and the reliability of the battery can be guaranteed.

The invention discloses an integrated management and analysis system for a water supply pipe network on the basis of the Internet of Things. A municipal water supply pipe network collector, a municipal district water supply pipe network collector, a community water supply pipe network collector and a unit resident water supply pipe network collector select a way of a parallel structure on the basis of the Internet of Things and can utilize the way of the parallel structure to accurately divide complex and complicated water supply pipe network data, a GIS (Geographic Information System), a GPS(Global Positioning System) and a 4G (the 4th Generation mobile communication technology) communication network can be cooperated to accurately position the water supply network data, and in addition,data transmission efficiency can be improved; a complete urban water supply network flow graph is established and is displayed on a liquid crystal display, and workers can visually observe the watersupply situation of the whole urban area; and when an abnormal situation happens, related personnel can be informed of repairing, and situations of water resource waste and bigger loss caused by the water resource waste can be avoided.

The invention provides a man-in-the-loop satellite control system and a control method. The man-in-the-loop satellite control system comprises a satellite camera device, a ground receiving/transmitting device and a computer device, wherein the satellite camera device is carried on a satellite and used for obtaining a video image of a target ground object in real time; the ground receiving/transmitting device is arranged on the ground and used for receiving the video image in real time and transmitting the video image to the computer device; the computer device is arranged on the ground and comprises a control device; and the control device is used for controlling the ground receiving/transmitting device to transmit an operation instruction to the satellite according to the video image. According to the man-in-the-loop satellite control system provided by the invention, the satellite is adjusted according to the real-time video image obtained by the satellite so that the man-in-the-loop of the satellite is controlled; therefore, a user can flexibly control the satellite to rapidly change an observation area so that targets in a sensitive area is observed according to needs.

The invention relates to an intelligent real-time gauze counting and liquid metering device which comprises a solid collecting container, weight sensors, infrared counters, a human-computer interaction module, a voice broadcast module and a processor. The solid collecting container comprises at least one placement cavity, the placement cavities are internally provided with the infrared counters, and when the solid collecting container is provided with only one placement cavity, at least two solid collecting containers and at least two weight sensors are arranged; the infrared counters, the weight sensors, the voice broadcast module and the human-computer interaction module are all electrically connected with the processor. The intelligent real-time gauze counting and liquid metering devicecan independently count the quantity of solids of different sizes and independently meter or accumulatively meter liquids contained therein, can conduct real-time broadcasting on solid counting and liquid metering situations according to the set conditions (timing, quantifying or changing), improves the timeliness and accuracy of measurement data and can greatly reduce the labor intensity of medical workers.

The invention applies to the technical field of medical treatment, and provides clinical voice guidance method and system. The method comprises the steps of acquiring an uterus pressure signal; acquiring the current uterine contraction pressure value according to the uterus pressure signal; calculating the uterine contraction pressure lowering trend duration when the uterine contraction pressure is less than the preset reference uterine contraction pressure threshold; calculating the uterine contraction pressure raising trend duration when the uterine contraction pressure is more than or equal to the preset reference uterine contraction pressure threshold; reporting the voice information corresponding to the uterine contraction pressure lowering trend duration threshold when the uterine contraction pressure lowering trend duration is more than or equal to the preset uterine contraction pressure lowering trend duration threshold; reporting the voice information corresponding to the uterine contraction pressure raising trend duration time threshold when the uterine contraction pressure raising trend duration is more than or equal to the uterine contraction pressure raising trend duration threshold. With the adoption of the method and system, the timeliness and accuracy of determining uterine contraction level can be improved, and the work intensity of an obstetrician is reduced.

A system for tracking and monitoring a game ball, wirelessly gathering data from the ball, game device elements, players, officials, to improve timeliness and accuracy of the game, includes: a wireless tag disposed within the ball to provide an identification, wirelessly communicable with a receiver to indicate a position in X, Y, Z coordinates, and such that ball edge locations are identified; wireless communication system tag reading devices arranged in decisive areas and each configured to sense and read each wireless communication system tag; a computer control center connected to the wireless communication system tag and tag reading devices, configured for receiving, computing, and processing a plurality of game data and communicating a decisive signal for the exact position for a placement of the ball; and a personal computing device worn by a game official for communications and configured both to send and receive data during the game.

The invention discloses a 6LowPan based underground historical relic antitheft monitoring terminal and method. The terminal comprises a vibration sensor, an MCU and a communication module; the vibration sensor collects a vibration signal of a historical relic area; the MCU receives the vibration signal collected by the vibration sensor, compares the vibration signal with a preset vibration signalthreshold ThVib, and determines whether the vibration signal exceeds the preset vibration signal threshold ThVib, if YES, duration of the vibration signal is calculated and compares with preset duration threshold Thdur, and whether the duration of the vibration signal exceeds the preset duration threshold Thdur is further determined; and MCU is in communication connection with an external server via the communication module. Thus, underground historical relic antitheft monitoring is more accurate and instant, the cost is low, operation is convenient, the reliability is high, the workload of historical relic supervision staff is reduced, domestic safety protection for underground historical relics can be effectively enhanced, and effective protection is provided for the underground historical relics.

The invention relates to a frequency spectrum sensing method based on chaos theory, which is applicable to a cognitive radio network. The method comprises the following steps: a cognitive radio transmitting terminal user transmits self data by chaos signals and a cognitive radio receiving terminal user demodulates frequency spectrum sensing and chaos signals. Through the method provided by the invention, the cognitive radio user does not need to use the silent period when frequency spectrum sensing is carried out, so that time for the cognitive radio user to transmit self data is increased, continuity of data transmission is ensured and communication quality of service (QoS) of the cognitive radio user is improved.