103results about How to "Fast real-time response" patented technology

Legality expressions are systematically pre-processed, organized, and stored to achieve faster real-time response, improved predictability, and increased reliability for queries against a large volume of legality expressions. Exponential improvements in both the time to locate the set of legality expressions matching specified search criteria and the processing costs of evaluating the request against the matching legality expressions are achieved using the disclosed systems, devices, and methods. The systems, devices, and methods are unique to the optimization of legality expression processing, but they can also enable the use of other optimization techniques for processing large amounts of data.

The invention discloses a topic model-based judgment document similarity analysis method. A semantic-based semi-automatic and universal similarity analysis method is proposed for judgment documents by adopting an LDA (Latent Dirichlet Allocation) topic model in machine learning. The method mainly comprises the steps of selecting corpora; establishing a similarity tag; performing text preprocessing; performing input selection; performing parameter setting; performing iterative training; generating a model; applying the model; and the like. Based on a general similarity analysis method, the characteristics of rich specialized vocabularies and complex semantics in contents of the judgment documents are fully considered, and the semi-structured characteristics of the judgment documents are utilized, so that the accuracy and applicability of judgment document similarity analysis are improved.

The invention discloses a vehicle-mounted fatigue early warning device and a method thereof. The vehicle-mounted fatigue early warning device comprises an image acquisition unit, an image processing and positioning unit, a fatigue detection unit, a control unit used for controlling the coordinated operation of all functional units and a warning unit. The method comprises the following: the first step, acquiring pupil image data; the second step, position-processing the acquired pupil image data; the third step, working out a pupil area, and judging whether a driver is tired according to the percentage of eye-closing time against unit time; and the fourth step, sending out a warning signal according to a judging result. The device uses an FPGA chip, and realizes the eye positioning algorithm in a mode of digital circuit system. Compared with the prior art, the device has the advantages of high real-time response, quick and timely early warning on fatigue, small volume, low power consumption, convenient assembly and the like, so that the device is quite suitably applied to a vehicle-mounted electric system.

The invention discloses a spam mail filtering system and method based on clusters. The system comprises a cluster module, a mail training module, a characteristic base storage module and a mail filtering module. The method includes that S1.1 training mails and unmarked mails are obtained from a mail backup system; S1.2 a cluster preprocessing module preprocesses the mails; S1.3 a cluster analyzing module divides the preprocessed mails into different clusters; S1.4 a cluster central computing module computes vector expression of the clusters; S1.5 the training module studies marked mails in the clusters and updates characteristic bases corresponding to the clusters; S2.1 mails required to be filtered are obtained from a mail system; S2.2 a mail class attribute distinguishing module calculates the cluster most similar to mail content; S2.3 a mail characteristic extraction module conducts characteristic extraction on the mails to be distinguished; S2.4 a mail distinguishing module shows a distinguishing result according to the mail characteristics and the corresponding characteristic bases. The system and method has the advantages of being high in extraction speed, high in accuracy and good in effect.

The invention belongs to the field of intelligent household technology, and provides an intelligent household device and a control method. The method comprises the step: a control device sends control commands to multiple controlled devices, wherein the control commands comprise a command value, an identifier of each controlled device and the action which needs to be executed by each controlled device. By adopting the control method of the invention, after multiple household appliances receive the same command, execution is carried out according to needs of the user.

The invention relates to the technical field of computer networks, and discloses a method for real-time statistics of the number of network users. According to the method for real-time statistics of the number of network users, network messages, meeting various protocols, in the traffic are analyzed thoroughly on the premise that all the network traffic of various terminal users in some region is obtained, key information is extracted, appropriate structures are selected according to the requirement of statistics, corresponding user attributes are added, assembling storage is carried out, and real-time performance of the query is improved due to the fact that a local cache technology is adopted; due to the fact that a user time ageing technology is used for correspondingly dealing with the situation that offline messages of dynamic users are lost, and the situation that static users do not have offline messages; in order to ensure accuracy of user statistics, a system provides interfaces for the users, the user range, namely the IP section, of the region is set through the interfaces, and interference caused by the transit traffic to statistics is ensured; when access is carried out on static IPs for the first time, the asynchronous processing mode is adopted, and the real-time response speed of the system is increased.

The invention provides a ZYNQ FPGA chip, a data processing method of the ZYNQ FPGA chip and a storage medium. A PS part configures the operation parameters of a PE in a PEA of a PL part, and enables the calculation of the PE to be started; the PEA determines a read command, a write command and the number of the write commands according to the operation parameters of the PE, and sends the read/write commands to the read/write command interfaces of a DMA controller respectively; the DMA controller starts a data reading process from an external storage device according to the reading command, andsends the read data to the PEA; the PEA performs calculation according to the read data, and writes a calculation result back to the DMA controller; the DMA controller transmits a calculation resultto an external storage device, and waits for transmission completion and sends an end mark signal corresponding to each write command back to the PEA; and after the PEA receives the end mark signals with the same number as the write commands, the PEA sends an interrupt to the PS part, so that the overall performance of processing a deep learning model is effectively improved.

The invention discloses a logistics recommendation method based on clustering and cosine similarity. Firstly, the AP clustering method, the SDbw clustering method and the K-means clustering method are used to calculate the best K value for using the K-means clustering method of the cargo data set and the truck data set. According to the best K value, the cargo data set and the truck data set are subjected to clustering, and the naive Bayesian classifier is used to train two classifiers based on the results obtained from clustering of the cargo data set and the truck data set. The classifiers obtained by training of the truck data set and the cargo data set are used for classification, and then the cosine distances between normalized truck information and all elements of the same type of truck information in the truck data set are calculated, and finally the goods are recommended according to the cosine distances from large to small. The method effectively improves the real-time response speed of the recommendation method.

The invention aims to disclose a radar level meter system and a control method thereof. The radar level meter system comprises a master control unit, a display unit, a configuration data storage unit, a key processing unit, a communication unit, a 4-20MA modulation unit, a reset unit, a transmitted signal processing unit, an echo signal sampling and processing unit and an extension unit; the latter units are all connected with the master control unit. Compared to the prior art, the radar level meter system has the advantages that based on the control method, longer time is provided for the processing of the mathematical operation part in complex echo data, system reliability and timeliness can be met, accurate measurement is achieved, real-time response speed is high, measurement and outputting precision is high, and the aim of the invention is achieved.

The invention relates to a measurement method for a time delay test of a quadrature phase shift keying modulator. A relation formula, meeting the requirements of time delay measurement, of input and output of the quadrature phase shift keying modulator is given, and a time delay measurement model is built through the principle of maximum likelihood estimation. Based on the above, a time delay test system formed based on a digital oscilloscope and a baseband signal and a measurement method for the time delay test are given, and the error components caused by the manual interpretation of the jump edges of input and output signals are eliminated. When a measurement main regulator digital oscilloscope carries out signal collection at a sampling rate of 25GS/s, the uncertainty of a time delay measurement result is not less than 100ps. The system is high in measurement accuracy, is simple and feasible in measurement method, is relatively low in requirements for hardware, is high in real-time response, and can be used for the link time delay calibration of a high-precision satellite measurement and control and navigation positioning system.

The invention relates to the field of locomotive testing, in particular to a method and a device for testing a control cabinet of an electric locomotive. In the method, the device for testing the control cabinet of the electric locomotive is utilized to test the control cabinet of the electric locomotive; the device for testing the control cabinet of the electric locomotive comprises a user terminal and a signal input/output hardware module, and a motor model is stored in the user terminal. The method comprises the following steps: S1. establishing the user terminal connected with a data lineof the signal input/output hardware module; S2. selecting the type of the to-be-tested control cabinet of the electric locomotive by the user terminal, and extracting the motor model which corresponds to the type of the control cabinet of the electric locomotive to serve as the motor model to be tested; S3. transmitting the motor model to be tested to the signal input/output hardware module; S4. receiving the motor model to the tested by the signal input/output hardware module, and downloading the motor model to be tested; and S5. uploading and running the motor model to be tested to perform testing by the signal input/output hardware module.

The invention discloses a color bell advertisement platform, broadcast system and broadcast method. The color bell advertisement broadcast method, through on-line or off-line analysis of the relevant information of the calling subscriber and/or the called subscriber, selects the type of the color bell advertisement to be broadcasted for the calling mobile terminal or each mobile terminal, and broadcasts the selected color bell advertisement to the calling subscriber of the calling mobile terminal. The color bell advertisement broadcast method includes: acquiring the relevant information of the calling subscriber and/or the called subscriber after receiving the request for broadcasting the color bell advertisement, selecting the type of the color bell advertisement to be broadcasted according to the information, and returning a response for broadcasting the color bell carrying the corresponding types of information; broadcasting the color bell advertisement corresponding to the information based on the information carried in the response. The invention realizes selective broadcasting of color bell advertisement according to different calling subscribers and/or called subscribers, thereby improving the delivery effect of color bell advertisement.

Provided is a digital DC/DC power module with multi-mode multi-loop control. The digital DC/DC power module with multi-mode multi-loop control is adaptive to complexity, high performance, and high reliability of the application of a current DC/DC power module and is high in integration degree and high in flexibility, and comprises implement contents including structural composition, components and parts, heat dissipation and packaging, a work principle, an automatic voltage-increasing and decreasing topological structure, feedback control, increment PID control, input voltage automatic tracking, multi-loop cooperative control, data communication, a power conversion circuit, and a core control circuit.

The invention discloses a method and a device for virtual keyboard input by the aid of hand signs. The method includes capturing gesture information of static hand signs of a user when the user presses different keys; storing the gesture information of the static hand signs of the user when the user presses the different keys and corresponding key information; capturing gesture information of a real-time hand sign of the user when the user inputs information; matching the gesture information of the real-time hand sign with the gesture information of the static hand signs of the user when the user presses the different keys, and acquiring the gesture information, which is matched with the gesture information of the real-time hand sign, of the certain static hand sign; and determining that the key information corresponding to the matched gesture information of the certain static hand sign is the key information inputted by the user. The method and the device have the advantages that only the gesture information of the hand signs needs to be matched, so that the data volume can be reduced, and the real-time response speed is increased; gesture information of respective habitual static hand signs of different users is recorded in advance, so that the method and the device are adaptable to different habits of the users; and as the gesture information of the static hand signs of each user is fixed, the method and the device are high in accuracy.

The invention relates to a whole network distributed heat storage and supply system and method and belongs to the field of heat storage and supply systems. The whole network distributed heat storage and supply system is characterized by comprising a heat supply system, a heat storage system, a control system and a management and control platform, wherein the heat supply system is connected to theheat storage system, and the control system is separately connected to the heat supply system, the heat storage system and the management and control platform; the heat storage system includes a heatstorage tank, an electric shut-off valve, an electric regulating valve and a circulating water pump, wherein a cold water end and hot water end of the heat storage tank are separately connected to theheat supply system through the electric shut-off valve, the electric regulating valve and a circulating water pump. The whole network distributed heat storage and supply system and method have the advantages that novel heating systems of heat storage devices are installed on positions such as users' houses, heat exchange stations, pipe networks, renewable energy source areas, thermal power plantsand regional boiler rooms, and through the mode of combining user sides, pipe network sides and heat source sides for heat storage, not only are the needs of heat sources for peak shaving met, but also the advantages of being narrow in adjustment range, closer to the users, higher in flexibility and the like are achieved.

The invention provides a multitask sequence parallel-running method. The multitask sequence parallel-running method comprises the specific following steps that a device is awakened, and a memory and aperipheral are initialized; parameters required for running of all tasks in the device are configured, a microcontroller produces time takt corresponding to each task through a takt timer, all the task generate time slices according to each takt, period tasks are generated according to the time slices, and accordingly a time scheduling period table is established; the microcontroller receives instruction loading sequence data and run the sequence data according to the established time scheduling period table after parsing; normal running of multiple task modules is achieved through sequence data running. By adopting the method, a software/hardware framework is provided for secondary development of a user, a low-cost microprocessor running method is designed, multitask running based on time scheduling is supported to the greatest degree by scheduling multitask running sequence data in an SPI_FLASH memory in a running framework of the microprocessor, and fewer memory and computing resources are occupied.

The invention discloses an alarming device and an alarming method for detecting harmonic waves of a vehicle-mounted converter. A hollow transformer is used for converting a sensed current signal into a voltage signal, and outputting the voltage signal to an isolation unit. The isolation unit is used for performing isolation amplification on the signal, and outputting the processed signal to a filtering unit. The filtering unit is used for performing low-pass filtering processing on the signal, and outputting the signal to an A/D (analogue/digital) sampling unit. The A/D sampling unit is used for performing sampling and A/D conversion on the signal output by the filtering unit, and outputting the converted signal to a digital signal processing unit. The digital signal processing unit is used for performing processing on the converted digital signal to judge whether an interference signal of which the frequency is the same as that of a track relay driving signal representative of a track occupation condition in the digital signal exceeds a threshold value or not, and outputting an alarming signal to a converter master control unit through an alarming output unit. According to the device and the method, the technical problems of low detection accuracy, high false alarm rate, low flexibility and availability and low reliability of the prior art are solved.

The invention discloses an IP-based streaming media playing method and system. The method comprises the following steps of sending a data steam to a streaming media platform through a media server and a multi-thread server according to a communication protocol; performing recognition processing on the format of the data stream, and further storing the data stream; sending and playing the stored data stream according to a session request. The system comprises an input unit, a storing unit and an output unit. By the method and the system, real-time streaming transmission can be realized through configuration, a multi-thread kernel and multiple data stream channels are used for service, mutual communication among networks is effectively realized, the openness is high, the extendibility is good, and the real-time response speed is high, further, multiple kinds of data stream storage are provided, data can be read and written asynchronously, and flexibility of data storage is greatly enhanced. The method and the system can be widely applied to the streaming media field.

The invention discloses a multipoint displacement simultaneous measuring method, and a measuring system is shown in the figure. A reference point transmitting antenna is installed on the fixing position, and the surface of the measured object is equipped with multiple observation point transmitting antennae; a public radio frequency local oscillator generates a radio frequency carrier signal, a reference point beacon receiver directly transmits the radio frequency carrier signal through the reference point transmitting antenna, an observation point beacon receiver uses a low frequency sine wave signal to perform the double-sideband modulation to the radio frequency carrier signal, and sends it to the observation point transmitting antennae; the frequency of the sine wave modulating signal of each observation point beacon receiver is different; after receiving the mixed signal transmitted by the reference point transmitting antenna and the observation point transmitting antennae, a telemetering receiver uses the other radio frequency local oscillator to convert the frequency of the signal to the intermediate frequency, and digitize it, and then perform the Fourier transform to obtain its magnitude spectrum and phase spectrum, so that the carrier phase difference of each observation point signal and the reference point signal is calculated; and according to the phase difference variation of two times of previous and next measurement, the displacement of each observation point is calculated.

The invention provides a grouping polling method of wireless communication, comprising following steps: S1, dividing an intra-domain terminal into a plurality of groups by a base station, distributing a group ID and an intra-group ID to every terminal; S2, broadcasting a command to one group by the base station in polling, after the intra-group terminal receives the command, positioning own reporting time slot by the intra-group terminal according to the ID number; S3, when the reporting time slot arrives and no other terminal is monitored to start communication, starting the communication by the terminal corresponding to the reporting time slot, wherein other terminals cannot start the communication at this time until the next intra-group polling command arrives. In application of the grouping polling method of the invention, the base station is unnecessary to start polling the terminals one by one; the command polling expenses are reduced, the intra-group terminal positions own reporting time slot according to the ID number; predicable anti-collision time is formed; and the real time response speed of the whole wireless system is improved.