79results about How to "Ensure data accuracy" patented technology

The invention provides a non-contact free space eye-gaze tracking method suitable for man-machine interaction. The method comprises the steps of positioning and tracking a face and eyes in real time, extracting eye movement biological characteristic information, building an eye movement model based on the eye movement biological characteristic information, building a mapping relational model of the eye movement model and an eye-gazed object and the like. The non-contact free space eye-gaze tracking method suitable for the man-machine interaction relates to multiple crossed fields of image processing, computer vision, pattern recognition and the like and has wide application prospect in the fields of new-generation man-machine interaction, disabled people assisting, aerospace relating field, sports, automobile and airplane driving, virtual reality, games and the like. In addition, the method has great practical significance for improvement of the life and self-care level of disabled people, building of a harmonious society and improvement of independent innovative capability in the national high-and-new technical fields of the man-machine interaction, unmanned driving and the like.

The invention discloses a passive RFID ((Radio Frequency Identification Device) temperature sensor label. The passive RFID temperature sensor label comprises a RF analog front end, a digital part, a memory, a temperature sensor and an antenna terminal used for connecting an externally connected antenna, wherein the RF analog front end is respectively connected with an antenna end, the digital part, the memory and the temperature sensor; and the digital part is also respectively connected with the memory and the temperature sensor. The label adopts the antenna end to match with the RF analog front end to convert an RF energy sensed by the externally connected antenna into an electric energy which is enable supplied to the digital part, the memory and the temperature sensor, a built-in power source is unnecessary. The passive RFID temperature sensor label, disclosed by the invention, can efficiently reduce production cost of the label, utilize the RF energy in an inductive electromagnetic field of the externally connected antenna and convert the RF energy into the electric energy available for the label only by putting the label in the electromagnetic field, being convenient to use, and is convenient to use; and the service life of the passive RFID temperature sensor label is unnecessarily limited by the service life of the built-in power source.

The invention relates to an IP network application accelerating system for realizing the high-efficiency transmission of data in wide area networks. The interaction times among the wide area networks are reduced and the response time of an application server to a user is increased through optimizing four mainstream application protocols such as HTTP (Hyper Text Transport Protocol), FTP (File Transfer Protocol), SMTP (Simple Message Transfer Protocol) and POP3 (Post Office Protocol 3) in the aspects of object caching, directory prefetching, data authentication and the like; the retransmission of the same data in the networks is avoided through redundant data judgment, data combination and data recovery, and thereby, the effective use ratio of available bandwidth is improved, and simultaneously, the stability and the accuracy of redundant data processing are ensured through the storage management on a data redundancy caching zone; and the actual transmission rate of the data in the widearea networks is improved through dynamically measuring the network bandwidth and regulating the transmitting rate.

An energy-saving apparatus and method for a portable terminal are disclosed in the present document. The apparatus includes: an electricity meter module, configured to detect battery power consumption parameters under driving of a data acquisition module; the data acquisition module, configured to drive the detection of the electricity meter module, and output the collected battery power consumption parameters to a data analysis module; the data analysis module, configured to estimate power consumptions of all running devices at present in the terminal according to the input battery power consumption parameters, and output a power consumption optimization instruction to a power consumption optimization execution module; and the power consumption optimization execution module, configured to adopt corresponding power consumption optimization approaches according to the input power consumption optimization instruction.

A switch capable of controlling data packet transmission includes at least one input port for receiving a data packet, at least one output port for outputting the data packet, a queue buffer for holding the received data packet, and a analyzing-processing unit for determining how to transmit the received data packet based on a transmission requirement of the received data packet.

The invention relates to a preparation and evaluation method of transformer characteristic gas standard oil samples. By preparation of standard gases with different concentrations, preparation of a blank oil sample, thorough mixing of the standard gases with the blank oil sample and other steps, the preparation method realizes preparation of the transformer characteristic gas standard oil samples. The evaluation method utilizes the standard oil samples with different concentrations prepared by the method, and evaluates the gas chromatography performance including the minimum detection concentration, data repeatability and accuracy, and evaluates a gas chromatograph, thus realizing comprehensive evaluation of the transformer characteristic gas standard oil samples. The method provided by the invention can prepare standard oil samples with set characteristic gas concentrations at one time, and also can improve the quality of the gas chromatograph so as to ensure the device operation reliability and data accuracy.

In a method of operating a motor vehicle with an electronically controlled automatic clutch device, a control device and one or more data-storing devices for values of operating quantities and parameters, the values are stored in at least duplicate form in the data-storing device. The data are stored in prescribed formats and the integrity of the data is checked according to prescribed criteria, to ensure that incorrect data are not used in the operation of the vehicle.

The present invention d iscloses an electromagnetic detector and a detection method for detection of interface cracks in a piezoelectric-piezomagnetic laminated structure. The electromagnetic detector for detection of interface crack in a piezoelectric-piezomagnetic laminated structure mainly comprises an eddy current magnetic probe assembly, an automatic scanning frame, a base, a carrier, a servomotor, an X-axis mobile frame driving controller, a Y-axis mobile frame driving controller, a power supply, and a main controller.

An automated network triggering-forwarding device connected with a control computer and an information input equipment by a network or a cable, respectively, is provided, which comprises a static output module, a dynamic forwarding module, and an information feedback module. A preset trigger signal is output by touching a key or combination of keys of a key output module, the output information of the information input equipment is forwarded to the control computer by the dynamic forwarding module, and the information fed back by the control computer is displayed on the feedback display module and a voice prompt is provided through the voice output module by the information feedback module. The buttons are imparted with different output definitions according to different service requirements, and tart triggering other recognizing devices to operate when needed according to operator demand. The dynamic output function can be externally connected with a plurality of non-network equipment.

The invention discloses an environmental video monitoring system based on the 4G mobile communication technology, wherein a rainfall detecting unit is configured to detect the rainfall and a rainwaterPH value in real time; a meteorological environment detecting unit is configured to detect the wind speed, the solar radiation intensity and an atmospheric pressure value in real time; the real-timedetection of sulfur dioxide concentration, ozone concentration and carbon oxide concentration through a gas detecting unit is more intuitive when observing environmental problems; and a S3C2440A chipand a digital sensor are selected to also ensure the data accuracy, efficiency and intelligence of the system, and ensure the real-time accuracy of environmental monitoring at the same time. The environmental video monitoring system based on 4G mobile communication technology reduces manpower and material resources, and labor cost.

A system and method for assessing demographic data accuracy from third party data vendors is provided. Third party demographic data is compared to self-reported demographic data; hence compared to data presumed to be accurate. Analysis is done on the comparison to determine the accuracy of the data and if bias exists in the results for a particular demographic population or geographic region. Demographic data from many third parties can be analyzed in the same way, and the results can be compared to each other to determine which third party has the most accurate demographic data elements.

The invention discloses an air pollution detection device and a detection method thereof, and belongs to the technical field of air quality detection. The invention discloses the air pollution detection device which is characterized in that air is absorbed through an air inlet to enter the detection device for detection, a rotating table is mounted below the air inlet, the air inlet is driven to rotate through the rotating table, air in different directions is absorbed, and data are more accurate; a detection chamber is installed inside the air inlet, the detection chamber can realize synchronous detection of one, two or more pollutants, the detection chamber is connected with a controller, the controller issues a command in a unified manner, and meanwhile, a detection result is synchronously displayed by the controller to confirm the content of the air pollutants; and for air at a high position, the measuring ruler can be pushed by a telescopic rod to rise, and different height positions can be determined by the measuring ruler, so that the data accuracy and completeness of overall air detection are ensured, and corresponding solution measures can be conveniently formulated.

The invention relates to a power distribution network infrastructure project investment statistical method. The method comprises the following steps of estimating monthly investment amount i based onmonthly investment percentages of historical similar projects in a local area; and calculating the engineering weight coefficient of each subsection based on the historical similar projects of the local area. The invention also relates to a power distribution network infrastructure project investment statistics deviation correction method. The method provided by the invention has good universalityand suits the actual condition..

The invention relates to a multihead plane reciprocating friction wear testing machine. The multihead plane reciprocating friction wear testing machine comprises a worktable, wherein lower clamps forfixing lower to-be-tested samples are arranged on the worktable; a movable cross beam is arranged above the worktable; upper clamps are arranged on the movable cross beam; a mechanism adjusts the movable cross beam to vertically move and enables the upper clamps to be close to or separated from the corresponding lower lamps; elastic plates are horizontally arranged on the movable cross beam in a suspending manner; the plate surfaces of the elastic plates are horizontally arranged; the upper clamps are fixed at the suspending ends of the elastic plates; pressure applying heads are arranged at the upper ends of the upper clamps; a three-way force sensor is arranged on the lower clamps and is used for detecting applying pressure of the pressure applying heads; a driving mechanism drives the lower clamps to do reciprocating motion in the horizontal direction; the upper clamps are fixed at the ends of the elastic plates; when the pressure applying heads prop against upper to-be-tested samples, the upper to-be-tested samples can be always kept vertical, further friction surfaces of the upper to-be-tested samples and the lower to-be-tested samples are always planes, the constancy of the contact pressure of the friction surfaces is kept and data accuracy of a friction test is ensured.

A data accessing method for a memory storage apparatus is provided. The method includes using a first check code circuit to generate a first check code corresponding to a first data stream and generating a first data set based on the first data stream and the first check code. The method also includes using a second check code circuit to obtain the first data stream and the first check code from the first data set and check the first data stream according to the first check code. The method still includes using a third check code circuit to generate a second check code according to the checked first data stream and generating a data frame based on the checked first data stream and the second check code and thereby programming the data frame into a physical programming unit.

The invention discloses a character collecting method and system, and relates to the technical field of character collecting of crops. The method comprises the following steps that C1, images of corps to be collected are obtained and preprocessed; C2, the images after preprocessing are subjected to edge detection to obtain binary edge images; C3, all edge images are subjected to linear detection to obtain straight lines along the edges of branches of the crops to be collected; C4, the straight lines are subjected to fitting to obtain straight slopes representing two branches of the crops to be collected, and C5, according to the straight slopes of the two branches, branch angles of the crops to be collected are calculated. According to the character collecting method and system, partial characters are automatically collected, and accuracy of character collecting is improved.

The invention is applicable to the technical field of information processing, and provides an automatic information processing method and terminal equipment, and the method comprises the steps: sending a request instruction to a scheduling management system, using the request instruction for requesting to acquire an RCD file; receiving an RCD file sent by the scheduling management system, analyzing the RCD file, and obtaining an analyzed data table; And according to the analyzed data table, assigning values to preset data points in the smart power grid regulation and control system to obtain afront forwarding table of the smart power grid regulation and control system, so that the problems of long time and low accuracy caused by the fact that manual operation is adopted to debug the plant-station access of the automatic system in the prior art can be solved.

The invention relates to the technical field of visual rendering, and discloses a geographic big data three-dimensional visual rendering method. The method comprises the following steps: 1, layering a map visual area, so that the map visual area is divided into at least two or more data layers, each data layer is positioned according to own latitude and longitude coordinates, and the representation number of each data layer is S1, S2, S3... Sn; 2, firstly analyzing the data of each data layer and then screening the data; 3, respectively calling out the data of each data layer and loading the data into a data storage unit; and 4, rendering the data corresponding to each data layer in the data storage unit, and rendering each data layer in a one-to-one manner by a data rendering unit. According to the geographic big data three-dimensional visualization rendering method, the data of the geographic position does not need to be directly called, the data storage and pollution time is shortened, and then the rendering efficiency of mass geographic position data is improved.

The invention discloses a bio-based degradable film blowing master batch and a production process thereof. The bio-based degradable film blowing master batch comprises the following components: biological refined starch, polyethylene resin, a compatilizer, a coupling agent, an antioxidant and a lubricant. The process comprises the following steps: a, obtaining biological refined starch; b, removing impurities from the biological refined starch obtained by refining; c, heating and dehydrating the biological refined starch; d, mixing the polyethylene resin, the biological refined starch, the lubricant, the compatilizer, the coupling agent and the antioxidant; e, feeding the materials into an automatic feeding device; f, sealing the automatic feeding device and the double-screw extruder; g, extruding to form master batches; and h, the material conveying pipe, the first hose and the second hose are cleaned. The obtained master batch can be degraded in the natural environment, so that the environmental pollution is reduced. Meanwhile, the material conveying stability is good, the prepared materials can be uniformly and continuously fed into the double-screw extruder through the automatic feeding device, and the production efficiency of the master batch is improved.

A LED illumination device and validation methodology of LED illumination device's lifespan, comprises a controller, timing chip and low-voltage DC power supply, the controller is connected to the display terminal, the timing chip is positioned inside the LED illumination device, so as to get real-time recording of the operating time of the LED illumination device which is transmitted to the display terminal for display; meanwhile, a light sensor is placed in the luminous zone to obtain luminosity data so as to measure real-time luminous maintenance rate. When the measured luminous maintenance rate gets lower than the luminous maintenance rate predetermined for critical lifespan, the operating time recorded by the LED illumination device at this moment is the lifespan of this LED illumination device.