56results about How to "Reduce the amount of data sent" patented technology

The invention discloses a method for dynamic acquisition and transmission of wireless data. In a data acquisition process of the method, the time interval for data acquisition is dynamically adjusted, according to the change threshold of data acquisition. In a data storing process, the time interval and opportunity for data storing is dynamically adjusted according to the change threshold of data acquisition. In a data sending process, the opportunity for data sending is dynamically adjusted according to the acquisition value alarming threshold and changing rate alarming threshold of data acquisition. Dynamically increasing or reducing data sampling frequency without increasing power consumption of wireless equipment is realized based on data abnormity degree. Alarm information is timely sent by determination of dynamic data acquisition abnormity, so that managers can maintain equipment as early as possible. Wireless data bulk sent is reduced, and the power consumption of wireless monitoring equipment is reduced. The process state information of entire detected equipment can be monitored without increasing the total transmission data bulk.

The invention provides audio equipment and a data receiving method thereof. The audio equipment includes two identical audio devices, one audio device is a primary audio device, and the other audio device is a secondary audio device. The primary audio device is used for establishing a connection with a voice terminal to form a first link and establishing a connection with the secondary audio device to form a second link. The primary audio device is further used for transmitting configuration information of the first link to the secondary audio device through the second link and receiving voicedata sent by the voice terminal through the first link. The secondary audio device is used for monitoring on the first link according to the configuration information of the first link and synchronously receiving the voice data sent by the voice terminal by monitoring the first link and the primary audio device. According to the method, the amount of data transmitted by the primary audio device can be reduced, the power consumption is reduced, and the sound quality of the audio equipment is improved.

The invention discloses a method and device for determining pushed information. The pushed information is data information for describing a pushed object, the method comprises the steps of determining a reference pushed object according to user information and / or website content information when detecting that a user browses website contents; determining at least one object cluster corresponding to the reference pushed object, wherein the object cluster is a set of a plurality of pushed objects obtained through the clustering algorithm of a text correlation value and a behavior correlation value of the pushed objects; obtaining a target key word corresponding to at least one object cluster, and obtaining the pushed information from a information pushing system according to the target key word. The method and device for determining the pushed information can improve the consistency of the pushed information and the potential requirement of a user and improve precision of information pushing.

The invention discloses a method, device and system for processing electronic book comments. The method includes the steps of receiving and storing electronic book comment packets sent by a first electronic book client; receiving an electronic book browsing and commenting request sent by a second electronic book client, sending information of a user browsing the electronic book browsing and commenting request and obtaining a comment attention list of the user; obtaining an electronic book comment packet matched with the comment attention list of the user from the stored electronic book comment packets. By the adoption of the method, device and system, comment quality of electronic books sent to users by servers can be improved.

The invention relates to a system and a method for realizing data acquisition of a terminal. The system comprises an internet-of-things terminal used for collecting sensor detection data, wherein the internet-of-things terminal and an application system are connected in a matched form by network; the application system can send work mode coordination information to the internet-of-things terminal so as to enable the internet-of-things terminal to adjust to the work mode corresponding to the work mode coordination information after the work mode coordination information is received; the internet-of-things terminal correspondingly collects the data under the work mode and transmit the data to the application system. With the adoption of the system and the method, the flexible and effective mode application of the internet-of-things terminal is realized, so that the universality characteristic of the application is realized; the expandable mode application of the internet-of-things terminal is realized, so that the application scenario of the internet-of-things terminal is expanded and the application flexibility is improved; the data information collected by a periodic collection point is reported by an incremental mode, so that the transmission data amount of a internet-of-things terminal network interface can be significantly reduced, thereby reducing the power consumption thereof and improving the power consumption characteristic of the internet-of-things terminal.

The invention discloses an anti-collision data transmission method for a wireless passive radio-frequency sensing system. The wireless passive radio-frequency sensing system mainly comprises a single reader and a plurality of sensor nodes, wherein node response adopts the mode of single-bit response of address codes. Compared with a binary tree and a corrective method thereof, the nodes do not need to transmit a large quantity of address codes, so that the error rate of the address codes can be effectively reduced; and the single-bit response mode adopts a breakpoint-based method, not only completes identification of all the nodes within a cycle but also can read the sensor measurement value when simultaneously inquiring the nodes, realizes the function of completion of reading of measurement values of all the sensor nodes and detection of address collision through a single query instruction, and has high efficiency. The anti-collision data transmission method for the wireless passive radio-frequency sensing system reduces the response digit of a responder and the error rate, and realizes the function of completion of reading of the measurement values of all the sensor nodes and detection of address collision through the single query instruction.

The embodiment of the invention provides a product data pushing method based on big data. The method comprises the steps that object information and object information dynamic transaction informationof a target object are acquired; according to the product purchase time node in each part of target product information, obtaining a historical coefficient associated with each part of target productinformation from the mapping table; inputting the plurality of parts of target product information and the historical coefficient associated with each part of target product information into a portrait model, and obtaining a label coefficient of a preset label of the target object through the portrait model; and determining a target object category of the target object according to the label coefficient, and pushing product data to the target object according to the target object category. According to the embodiment of the invention, the label coefficient of the preset label of each target object can be accurately evaluated to improve the product data pushing efficiency and pushing accuracy, so that the data sending destination is effectively controlled, the invalid sending frequency of the data is reduced, and the communication overhead and the data sending amount of the sending end are saved.

The embodiment of the invention discloses a query method and a system of database, a client side, a server and a database. The method realizing on the client side comprises the following steps: receiving a first query command input by users by providing a visual interface to a user, wherein the first query command comprises a filtering condition of data needing to be queried; sending the first query command to a server; receiving and displaying a major key listing returned by the server; receiving a second query command input by users by the visual interface provided for the user; sending the second query command to the server, wherein the second query command comprises a major key assembly needing to be queried in a major key listing; receiving and displaying data which corresponds to the major key assembly and is returned by the server. One query is divided into two stages, thus reducing sending data amount; because the data quantity queried in the second stage is less if compared with all data, occupied cache is less; because sending data quantity and occupied cache are decreased, the query speed is higher.

The invention discloses a safe traffic method and system for a traffic signal light intersection. The method includes the steps that when a signal light is damaged and / or the visibility is lower thana preset threshold, a connection with an intelligent terminal within a preset range is established; a target sending terminal in the intelligent terminal is obtained and determined according to identification information, position information and acceleration information of the intelligent terminal; video monitoring information of the intersection in a preset time period is retrieved to calculateand determine signal light control parameters and generate reset signal light information, and the signal light control parameters and the reset signal light information are sent to the target sendingterminal; the target sending terminal conducts signal light reset according to the reset signal light information, and conducts signal light status information display according to the signal light control parameters. According to the technical scheme of the safe traffic method and system for the traffic signal light intersection, when the signal light is damaged or the visibility is so low thatsignal light information of the intersection cannot be obtained, the signal light information is obtained again through a car-carried terminal and a mobile terminal, and the traffic safety of the signal light intersection is guaranteed.

The invention provides a cognitive wireless sensor network spectrum detection method based on node information, namely, a method for efficiently detecting spectrum through a proposed chunking algorithm and a twice-detection mechanism based on sensor node geographical information, so as to improve the detection performance of a CRSN system and improve the energy efficiency of the system. The specific scheme of the invention comprises the following steps: a primary detection mode pre-embedding scheme is designed, and a monitoring area is partitioned based on node geographical location information; a PU (Primary User) is quickly perceived through primary detection, and whether a SU (Secondary User) can quickly access a channel or whether the system needs to enter a secondary detection process can be judged; a FC (Fusion Center) calculates a secondary detection area, the PU is perceived by a more reliable detection method during secondary detection; and data is fused and the state of the PU is judged in order to determine whether the SU can access a channel. By adopting the method of the invention, the detection accuracy and high performance of CRSN can be ensured, and the energy consumption of the network can be reduced.

This invention relates to one network division dispatching method applied in wireless speeding self-adapting signal channel in network technique field, which comprises the following steps: Initiating; determining current servo lines; sending ratio super lines compensation or simultaneous lines for lines and adjusting lines super and lack volume; adjusting difference timber value; taking lines set and computing set length; jading the length and difference timer size; dispatch device sending the set; judging the current lines is zero; deleting the index of the current lines from requirement list to make the difference value as zero and adjusting the current line super and lag values then going back to step 2; adding the line index to the requirement end and going back to step two.

The invention relates to a carrier monitoring multi-path access protocol in reader-based radio frequency identification. The protocol is used for reducing communication consumption of a reader and conflict consumption of an electronic tag in the radio frequency identification technology, so that higher channel utilization rate and tag reading rate are achieved. In the invention, the reader is used for carrier monitoring; a channel condition is periodically broadcast to the electronic tag in a communication range through a small amount of code data, so that the aim of reducing channel occupancy rate is fulfilled; and the electronic tag determines the probability of competing a channel at the beginning of each period, so that the competition probability of the electronic tag is in the optimal state to fulfill the aim of reducing conflict probability. When the electronic tag competes the channel, lightweight data is transmitted first, and then heavyweight data is transmitted to finish communication after channel use right is obtained; and thus, the unnecessary channel occupancy caused by conflict is reduced and the electronic tag reading rate is increased.

In a data reception processor ( 210 a) in a session relaying apparatus ( 20 - 3 ), a data amount monitor ( 201 ) monitors the data amount within the session relaying apparatus ( 20 - 3 ), a receivable amount calculating unit ( 212 ) requires a data receivable amount which is informed from the session relaying apparatus ( 20 - 3 ) to a data transmission terminal ( 10 ) in a devaluating way according to a predetermined function, a receivable amount informing unit ( 213 ) informs the data transmission terminal ( 10 ) of the value, and in the data output processor ( 220 a), an initialization judging unit ( 223 ) makes a judgment about initialization of the transmission amount, according to the amount resulting from the data monitor ( 201 ) monitoring the data amount within the session relaying apparatus ( 20 - 3 ), and a transmissive amount calculating unit ( 222 ) determines the data transmissive amount by using the result.

The invention relates to the technical field of high performance computing, and in particular relates to a wireless sensor network data fusion method based on clustering discrete grey model (DGM). Themethod comprises the steps of dynamically clustering multi-sensor data according to spatial correlation; detecting and polishing abnormal points in a data sequence group; describing correlation between sensor nodes with the aid of a discrete interval grey number concept in a grey theory; using a discrete grey number DGM prediction model to perform modeling and prediction on a development trend ofa data sequence; and achieving fusion of multi-sensor data. According to the method provided by the invention, the abnormal points can be effectively detected and polished, and the data reliability is enhanced; the prediction data is corrected by using the spatial correlation between the data, and thus the accuracy of data prediction is effectively enhanced; the data sending amount between the cluster node and convergence node is reduced; the transmission distance of the sensor node is effectively reduced; the transmission energy consumption of the sensor node is reduced; and the butt joint point number of the convergence nodes is reduced, and the network congestion problem is relieved.

The invention discloses wireless roaming methods and devices, a memory medium and access point equipment. The wireless roaming method comprises the steps of receiving first signal strength indicationinformation from an overlap access point, wherein the first signal strength indication information is used for describing signal strength when a station transmits a data packet with the overlap accesspoint through utilization of a current channel, and cover ranges of the overlap access point and a current access point are overlapped; measuring second signal strength indication information, wherein the second signal strength indication information is used for describing the signal strength when the station transmits the data packet with the current access point through utilization of the current channel; and sending the first signal strength indication information and the second signal strength indication information to the station, and / or generating a witching instruction according to thefirst signal strength indication information and the second signal strength indication information, and sending the switching instruction to the station. According to the technical scheme provided bythe invention, wireless roaming efficiency can be improved.

The invention discloses a communication method of a C1 wireless transmission unit and a main control unit, the C1 wireless transmission unit and the main control unit interact through an MVB bus, ports of the MVB bus comprise a command port and a plurality of data ports, and the communication method comprises the following steps: reading access data corresponding to a related transponder; the C1 wireless transmission unit divides each complete message in the access data according to the definition of the MVB bus port and fills the divided complete messages into a sending cache region queue ofthe data port; the C1 wireless transmission unit reads data from the sending cache region queue and writes the data into a corresponding data port, and access data of the data port is updated; the main control unit reads the data from the data port and stores the data into a receiving cache queue of the data port; and taking out the data in the receiving cache queues of the plurality of data ports, and splicing the data into a complete message to finish data receiving. According to the invention, the interaction efficiency of the C1 wireless transmission unit and the main control unit is improved.

The invention discloses a data processing method for a virtual desktop, and the method comprises the steps of generating a current screen content on a canvas according to a drawing command when the drawing command is received; judging whether the available bandwidth of the current network is greater than a preset value or not; and if so, determining target area content in the current screen content, and performing compressed encoding operation on the target area content to obtain to-be-sent data so as to send the to-be-sent data to the client. According to the method, the real-time transmission of the remote desktop can be ensured on the premise of reducing the sending data volume corresponding to the drawing instruction. The invention furthermore discloses a virtual desktop data processing device, a computer readable storage medium and an electronic device, which have the above beneficial effects.

In a vehicle monitoring method, recognition processing of a specific character pattern of a vehicle is performed by extracting a specific character pattern area from a taken image data. When the specific character pattern cannot be recognized, a compression range is judged as being a vehicle area clipped from the taken image data, and image data of the clipped area is compressed at a low compression ratio. When the specific character pattern is partially recognized, the compression range is judged as being the specific character pattern area clipped from the taken image data, and image data of the clipped area is compressed at the low compression ratio. When the specific character pattern is fully recognized, the compression range is judged as being the specific character pattern area clipped from the taken image data, and image data of the clipped area is compressed at a high compression ratio.

The invention provides an unmanned aerial vehicle and ground cooperative processing system for vehicle detection. The system is characterized by comprising an unmanned aerial vehicle and a ground control station in wireless communication connection with the unmanned aerial vehicle; the unmanned aerial vehicle is used for acquiring ground image data in real time, performing convolution calculationon the ground image data to determine target vehicle information and an image slice of a target vehicle, and transmitting the target vehicle information and the image slice to the ground control station, and the target vehicle information comprises the category of the target vehicle, and image pixel coordinates and latitude and longitude coordinates in the ground image data; and the ground controlstation is used for analyzing and storing the target vehicle information and the image slice of the target vehicle. The adopted unmanned aerial vehicle only sends the target detection result and thetarget image slice to the ground control station, so that the sending data amount is reduced; due to onboard processing of the unmanned aerial vehicle, a large amount of data does not need to be transmitted back to the ground end, and the real-time performance becomes better.

The invention relates to a method and device for distributing high speed data. The method comprises the steps of sorting the high speed data according to a generation order, and then packing and compressing the sorted high speed data by type; and constructing compression type interaction class data, and calling a data distribution service to publish the compression type interaction class data. The method and the device for distributing the high speed data provided by the invention can reduce the amount of transmitted data and reduce the data packet transmission frequency.

The invention discloses a tower crane anti-collision data receiving and transmitting device based on wireless data transmission. The tower crane anti-collision data receiving and transmitting device includes a data processing center, the data processing center is a chip of which the model is STM32F105; the data processing center is simultaneously connected with the tower crane anti-collision monitoring host, the EEPROM data memory, the power supply system and the data wireless transceiving system; the power supply system is further connected with the EEPROM data storage device, the tower craneanti-collision monitoring host and the data wireless receiving and transmitting system at the same time, and the data wireless receiving and transmitting system is further in data connection with other tower cranes in the data conflict prevention area. The invention further discloses a receiving method of the tower crane anti-collision data receiving and transmitting device based on wireless datatransmission. According to the invention, the problem in the prior art that when the number of tower cranes is too large, wireless data transmission conflicts lead to group tower anti-collision real-time calculation failure, so that the collision danger is not prompted and cut off in time is solved.

The invention discloses a method and device for achieving curve conversion display of collected data.The method comprises the steps that when one parameter is obtained, a single curve color setting instruction is sent, and a corresponding color is set for the collected data; a single curve drawing instruction is sent, and a curve is drawn for points specified in the single curve drawing instruction and displayed; amplitude value data of each point is expressed by one byte; when multiple parameters are obtained, a multi-curve color setting instruction is sent, and corresponding colors are set for the different parameters in the collected data; a multi-curve drawing instruction is sent, and curves for points specified in the multi-curve drawing instruction are drawn respectively and displayed in a same coordinate system.The method and device for achieving curve conversion display of the collected data have the following advantages that the data sending amount can be effectively decreased, the instruction efficiency can be improved, the system resource occupation quantity can be decreased, the screen-displayed data curve refreshing rate can be increased, and multiple curves can be simultaneously displayed in one coordinate graph.

The invention discloses an information transmission method and system used for improving uplink capacity, related to the field of communication. The information transmission method used for improvingthe uplink capacity comprises the following steps: a communication terminal uses a specified spread spectrum sequence to perform spectrum spreading on the uplink data to obtain spread spectrum information, and maps the spread spectrum information to a specified resource block for transmission, wherein all communication terminals located in the same set use the same resource block; and a receiver extracts transmission data from the specified resource block, and performs de-spreading on the transmission data with the corresponding spread spectrum sequence, so as to obtain the uplink data sent bythe communication terminal. The invention aims at the terminal characteristics of the mMTC scene of the 5G communication system, and the pseudo random sequence spread spectrum and the orthogonal frequency division multiplexing are combined, therefore, the existing resources are used more fully, the uplink capacity is greatly improved, and the reliability of uplink concurrent services of the maximum number terminals in the mMTC scene is ensured better.

The invention provides a webpage processing method and device. The method comprises the steps: obtaining a current frame of picture of a webpage and a previous frame of picture of the webpage; respectively obtaining a plurality of vertical straight lines in the vertical direction from the current frame of picture and the previous frame of picture to form a first line set and a second line set respectively; determining a motion vector between the current frame of picture and the previous frame of picture based on the first line set and the second line set; moving each macro block in the previous frame of picture based on the motion vector, and performing operation processing on the moved macro block and a target block at a corresponding position in the current frame of picture to obtain a residual error between the current frame of picture and the previous frame of picture; and encoding the residual error and sending an encoded result to a cloud desktop client, so that the cloud desktop client decodes the encoded result to obtain the residual error, obtains the current frame of picture based on the previous frame of picture and the residual error, and outputs and displays the current frame of picture. The problems that when a user browses a webpage based on the cloud desktop client, pictures are not smooth, and bandwidth occupation is large are solved.

An apparatus encodes a binary shape signal by using a modified context-based arithmetic encoding technique. The apparatus computes a context number of each binary pixel in the binary shape signal based on its corresponding context. Then, a probability corresponding to the context number is detected and a state of each binary pixel is determined by comparing the probability with a preset threshold value. Furthermore, a predicted pixel value corresponding to each binary pixel is decided based on the probability. The predicted pixel value is compared with an original pixel value of each binary pixel to thereby output a mapping value representing whether the predicted pixel value is identical to the original pixel value or not. The apparatus generates a first and a second sequences by rearranging the mapping values of the binary pixels in the binary shape signal according to the states of the binary pixels and assigns adaptive probability sets to the first and the second sequences, respectively. The first and the second sequences are arithmetically encoded based on the adaptive probability sets to thereby produce an encoded binary shape signal.

The invention discloses a cloud positioning system and method based on NB-IoT and Beidou. The system comprises a Beidou satellite which is used for providing a high-precision positioning signal; internet-of-thing equipment which is used for calibrating time and downloading an initial position and Beidou satellite almanac data through an NB-IoT network; the NB-IoT network which is used for transmitting data; a cloud computing server which is used for receiving Beidou code phase data; and a cloud database which is used for storing internet-of-thing equipment information and a positioning calculation result, wherein the Beidou satellite and the internet-of-thing equipment are connected with the cloud computing server through the NB-IoT network, the cloud computing server is connected with thecloud database, and sends extremely small Beidou satellite code phase data to the cloud computing server through the NB-IoT, and the cloud computing server calculates the high-precision position of the equipment according to the Beidou satellite code phase, and the purpose of reducing the energy consumption of the internet-of-thing equipment through reducing the operation time of the Beidou module and the data transmission amount of the NB-IoT network is achieved.

The invention discloses a robot path planning and walking control method based on serial numbers. The robot path planning and walking control method comprises the steps of: building a distribution regional map, defining distribution target points on the regional map, writing position information of each distribution target point into a configuration file, and defining a coordinate serial number ofeach distribution target point in the configuration file; acquiring an instruction of a user; acquiring current position information of a robot, and reading the configuration file; generating a pathplanning sequence, converting a distribution target point into coordinate serial number information, and generating the coordinate serial number information into the path planning sequence; sending the path planning sequence to the robot; enabling the robot to walk according to the coordinate serial number information; and making the robot waiting for a next user instruction after the robot completes the user instruction, and reentering the execution step again. The invention further discloses a corresponding robot path planning and walking control system. The invention provides a set of simple and easy path planning sequence encoding and decoding method based on serial numbers, the amount of sent data is few, and the action of the robot in the walking process can be intervened.