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37results about How to "The realization process is convenient" patented technology

Taxi calling system and taxi calling method based on handheld mobile terminals

The invention provides a taxi calling system and a taxi calling method based on handheld mobile terminals, and aims to solve the problem that the passengers are difficult to take a taxi, traffic resources are wasted and a taxi calling platform is difficult to popularize. The system comprises handheld mobile terminals of the passengers, an information processing server and handheld mobile terminals of drivers, wherein the information processing server can receive and store dynamic geographical position information of the handheld mobile terminals of the drivers; the passengers use the handheld mobile terminals of the passengers to send taxi taking order information comprising taxi taking geographical position information to the service processing server; the service processing server sends taxi taking request information to the handheld mobile terminals of the drivers in areas where the passengers are located according to the taxi taking order information; and the drivers can scramble for the orders after receiving the taxi taking request information and communicate with the passengers by using voice or symbols under the coordination of the information processing server, so as to confirm the passenger picking matters and pick up the passengers. The system and the method facilitate taxi taking of the passengers, reduce the unloaded ratio of the taxis and are easy to popularize.
Owner:沈哲

Keypress behavior pattern construction and analysis system of touch screen user and identity recognition method thereof

The invention provides a keypress behavior pattern construction and analysis system of a touch screen user and an identity recognition method thereof. According to the invention, data analysis is performed by using history keypress information of inputting a password by a soft keyboard on a mobile phone touch screen; a corresponding neural network model is established; and model calculation is performed on new to-be-tested data, to recognize a user identity. The system comprises a user data acquisition module, a data pre-processing module, a model training module, and a user identity identification module. The user data acquisition module is responsible for acquiring time series information of a user clicking the soft keyboard and inputting the password, and pressure and contact area information. The data pre-processing module is responsible for pre-processing the acquired data, removing dirty data, and performing normalization on the data. The model training module is responsible for performing analysis and modeling on a key-in mode of all users. The user identity identification module is responsible for performing model calculation on the new to-be-tested data, to recognize the user identity and improve security of a user account password.
Owner:TONGJI UNIV

Distribution network fault tolerance on-line fault location method based on prediction correction technology

The invention provides a distribution network fault tolerance on-line fault location method based on a prediction correction technology. The method comprises the steps that the independent region topology connection and the power flow transmission relation of a distribution network are used to establish a distribution network priority structure identification matrix; based on an independent region over-current information vector set and the distribution network priority structure identification matrix, a fault independent region decision matrix is constructed; fault independent region fault identification coefficients are determined, and a failed independent region is identified; the independent region is used as a basic dividing limit to establish a switch function model described by an algebra relation; prediction and correction models of fault region identification of the distribution network are constructed; and a prediction correction algorithm is used to identify a single feeder fault or a complicated multi-fault section of the distribution network. The method provided by the invention has the advantages of high information distortion fault tolerance ability, high versatility, high reliability, global convergence, convenient realization and high fault identification efficiency, and can effectively identify any complex multi-short circuit fault section of the distribution network.
Owner:HENAN INST OF ENG

Measuring method for calibration of north direction of phased array antenna based on gyro orientation

The invention discloses a measuring method for calibration of north direction of a phased array antenna based on gyro orientation. The measuring method comprises the following steps of 1, selecting a ground point A around the phased array antenna, arranging a gyro total station at the point A, and measuring the azimuth alphaAO of a measuring line AO; 2, calculating to obtain the azimuth of a measuring line OA; 3, arranging a total station at a point O, enabling a front mirror of the total station to sight the ground point A; configuring a horizontal dial of the total station, and setting the reading of the horizontal dial of the total station as alphaAO; 4, rotating a sighting part of the total station, setting the reading of the horizontal dial along the sighting direction of the total station as 0 (degree)-00 (minute)-00 (second), and selecting any point N on a true north direction line as a calibration reference point; 5, arranging the total station at the point N, enabling the total station to sight a point O, horizontally rotating the phased array antenna by using the point O as the center of a circle, and positioning the main axis of the phased array antenna on a sight line direction, so as to complete the measuring on the calibration of the true north direction of the phased control antenna. The measuring method can effectively solve the problems of waste of time and labor and low calibration accuracy of the existing conventional calibration method.
Owner:CHANGAN UNIV

Specific bird species oriented acoustic automated detection method

The invention discloses a specific bird species oriented acoustic automated detection method. The method comprises the following steps: extracting potential song fragments of specific bird species based on an acoustic event detection process of a Gaussian mixture model, and completing robust detection and automatic segmentation by combining post processing procedures of energy, singing duration and frequency distribution based on a candidate acoustic event; performing adaptive signal noise reduction on various sound fragments, extracting corresponding Mel-frequency cepstral coefficient featureparameters from the enhanced sound fragments, and acquiring a potential song fragment feature set; and finally, completing acoustic detection of the specific bird species by combining the potential song fragment feature set and a support vector machine. The realization process of the method disclosed by the invention is convenient. In addition, with the adoption of adaptive signal enhancement processing based on a microphone array, the signal to noise ratio of the acoustic event can be obviously improved, so that the specific species identification accuracy is improved, the acoustic detectionof the specific bird species in a field natural environment is realized. The method has significances on ecological protection of wild rare bird species.
Owner:NANJING UNIV OF SCI & TECH

Method for quickly obtaining migration of system time in wideband code division multiple access (WCDMA) communication system

The invention relates to a method for quickly obtaining the migration of system time in a wideband code division multiple access (WCDMA) communication system, which comprises the following steps: determining the information of a frequency band supported by a mobile device; generating a frequency-group fundamental frequency list covering the full frequency band; determining target cells participating in a cell selection process according to the frequency-group fundamental frequency list; and carrying out the cell selection process. By using the method, the time for measuring the full frequencyband from the beginning to the end is greatly reduced, and in the process of measuring, after the measurement on each frequency-group fundamental frequency has no result, the frequency-group fundamental frequency is measured again, thereby ensuring that the mobile device can detect the changes of signal strengths of tried frequency points timely, and then positioning the target cells more accurately. The method in the invention has the advantages of fast and convenient realizing process, energy conservation, consumption reduction, high success rate and wide application scope, and is simple tooperate, and provides a solid foundation for the further development of the modern mobile communication technology.
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD

Overburden rock damage zoning and height determining method based on penetration-damage relation

The invention provides an overlying strata damage zoning and height determining method based on a penetration-damage relation, and relates to the technical field of overlying strata damage zoning and height prediction of mine stopes. The overlying strata damage zoning and height determining method based on the permeation-damage relation comprises the following steps that 1, rock stratum distribution and ground stress environment investigation is conducted; 2, preparing a test piece; step 3, carrying out triaxial compression-seepage test on rocks at different rock layer positions; step 4, establishing a damage-permeation relationship; 5, overlying strata damage area division based on the damage-permeability relation; step 6, constructing a damage constitutive relation; step 7, embedding the damage constitutive relation into FLAC3D software; 8, establishing a numerical model; and 9, determining the height of each damage area through numerical simulation. According to the overlying strata damage zoning and height determining method based on the penetration-damage relation, damage area division and height determination can be carried out on a working face roof after working face mining.
Owner:ANHUI UNIV OF SCI & TECH

Method for quickly searching full-band cell in WCDMA (Wideband Code Division Multiple Access) communication system

The invention relates to a method for quickly searching a full-band cell in a WCDMA (Wideband Code Division Multiple Access) communication system. The method comprises the following steps of: determining band information supported by mobile equipment; generating a frequency group base frequency list covering the full band; determining a target cell in a cell selection process according to the frequency group base frequency list; and carrying out the cell selection process. By adopting the method for quickly searching the full-band cell in the WCDMA communication system, the time consumed by carrying out full-band measurement all the way is greatly shortened; meanwhile, in the process of measurement, when no measurement result is obtained in each frequency group base frequency, the frequency group base frequency measurement is carried out once again, therefore, the signal intensity change of tried frequency points can be timely detected out by the mobile equipment, and the target cell can be more accurately positioned. The method has the advantages of simple operation, quick and convenient realization process, energy saving, consumption reduction, higher success rate and wider application scope and lays a solid foundation for the further development of the modern mobile communication technology.
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD

Fault-tolerant online fault location method for distribution network based on predictive correction technology

The invention provides a distribution network fault tolerance on-line fault location method based on a prediction correction technology. The method comprises the steps that the independent region topology connection and the power flow transmission relation of a distribution network are used to establish a distribution network priority structure identification matrix; based on an independent region over-current information vector set and the distribution network priority structure identification matrix, a fault independent region decision matrix is constructed; fault independent region fault identification coefficients are determined, and a failed independent region is identified; the independent region is used as a basic dividing limit to establish a switch function model described by an algebra relation; prediction and correction models of fault region identification of the distribution network are constructed; and a prediction correction algorithm is used to identify a single feeder fault or a complicated multi-fault section of the distribution network. The method provided by the invention has the advantages of high information distortion fault tolerance ability, high versatility, high reliability, global convergence, convenient realization and high fault identification efficiency, and can effectively identify any complex multi-short circuit fault section of the distribution network.
Owner:HENAN INST OF ENG

The North Direction Measurement Method of Calibrated Phased Array Antenna Based on Gyro Orientation

The invention discloses a measuring method for calibration of north direction of a phased array antenna based on gyro orientation. The measuring method comprises the following steps of 1, selecting a ground point A around the phased array antenna, arranging a gyro total station at the point A, and measuring the azimuth alphaAO of a measuring line AO; 2, calculating to obtain the azimuth of a measuring line OA; 3, arranging a total station at a point O, enabling a front mirror of the total station to sight the ground point A; configuring a horizontal dial of the total station, and setting the reading of the horizontal dial of the total station as alphaAO; 4, rotating a sighting part of the total station, setting the reading of the horizontal dial along the sighting direction of the total station as 0 (degree)-00 (minute)-00 (second), and selecting any point N on a true north direction line as a calibration reference point; 5, arranging the total station at the point N, enabling the total station to sight a point O, horizontally rotating the phased array antenna by using the point O as the center of a circle, and positioning the main axis of the phased array antenna on a sight line direction, so as to complete the measuring on the calibration of the true north direction of the phased control antenna. The measuring method can effectively solve the problems of waste of time and labor and low calibration accuracy of the existing conventional calibration method.
Owner:CHANGAN UNIV

Method for quickly obtaining migration of system time in wideband code division multiple access (WCDMA) communication system

The invention relates to a method for quickly obtaining the migration of system time in a wideband code division multiple access (WCDMA) communication system, which comprises the following steps: determining the information of a frequency band supported by a mobile device; generating a frequency-group fundamental frequency list covering the full frequency band; determining target cells participating in a cell selection process according to the frequency-group fundamental frequency list; and carrying out the cell selection process. By using the method, the time for measuring the full frequencyband from the beginning to the end is greatly reduced, and in the process of measuring, after the measurement on each frequency-group fundamental frequency has no result, the frequency-group fundamental frequency is measured again, thereby ensuring that the mobile device can detect the changes of signal strengths of tried frequency points timely, and then positioning the target cells more accurately. The method in the invention has the advantages of fast and convenient realizing process, energy conservation, consumption reduction, high success rate and wide application scope, and is simple tooperate, and provides a solid foundation for the further development of the modern mobile communication technology.
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD

An acoustic automatic detection method for specific bird species

The invention discloses a specific bird species oriented acoustic automated detection method. The method comprises the following steps: extracting potential song fragments of specific bird species based on an acoustic event detection process of a Gaussian mixture model, and completing robust detection and automatic segmentation by combining post processing procedures of energy, singing duration and frequency distribution based on a candidate acoustic event; performing adaptive signal noise reduction on various sound fragments, extracting corresponding Mel-frequency cepstral coefficient featureparameters from the enhanced sound fragments, and acquiring a potential song fragment feature set; and finally, completing acoustic detection of the specific bird species by combining the potential song fragment feature set and a support vector machine. The realization process of the method disclosed by the invention is convenient. In addition, with the adoption of adaptive signal enhancement processing based on a microphone array, the signal to noise ratio of the acoustic event can be obviously improved, so that the specific species identification accuracy is improved, the acoustic detectionof the specific bird species in a field natural environment is realized. The method has significances on ecological protection of wild rare bird species.
Owner:NANJING UNIV OF SCI & TECH

Method and system for calibrating brightness and chrominance meter

The invention discloses a method for calibrating a chromaticity meter, comprising: measuring a preset auxiliary light source, obtaining a measured brightness value and a measured chromaticity value of the auxiliary light source; calculating the measured brightness value of the auxiliary light source and the measured brightness value of the auxiliary light source The luminance value conversion relationship between the luminance values ​​of the auxiliary light source and the chromaticity value conversion relationship between the measured chromaticity value of the auxiliary light source and the chromaticity value of the auxiliary light source; measure the measured object, and obtain the measured object’s Measure the brightness value and the measured chromaticity value; calculate the brightness value of the measured object according to the measured brightness value of the measured object and the conversion relationship of the brightness value; The chromaticity value of the measured object is obtained by calculating the chromaticity value conversion relationship. Correspondingly, a calibration system for the brightness and colorimeter is also provided. The invention does not need to send the chromaticity meter to the instrument calibration institution for professional calibration, does not affect the work progress, has high measurement accuracy, is fast and practical.
Owner:GUANGDONG VTRON TECH CO LTD
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