454 results about "Communication effects" patented technology

An innovative testing apparatus and method for a multi-paths simulating system is proposed. The testing apparatus comprises a shielded chamber to avoid the external electromagnetic interference and other unexpected transmission paths. The multi-paths simulating system is utilized by attenuators for simulating a communication effects in a MIMO channel propagation environment. A control unit can set of MIMO and SISO modes of TD, RD and DUT to determine attenuation difference and downlink, uplink throughputs difference of the TD, RD and DUT.

The invention discloses a switching method and a switching device of a wireless local area network. The method comprises the steps as follows: when a client end device detects that the signal intensity of a current access point is lower than a predetermined scan threshold, the client end device scans adjacent AP; when the client end device detects the adjacent AP the signal intensity of which is larger than or equal to the predetermined back-up AP threshold, the adjacent AP is added to a back-up AP list; and when a predetermined switching condition is satisfied, the client end device is switched to the adjacent AP in the back-up AP list from the current AP. In the invention, when moving, a wireless terminal device can start scan in time to acquire information of the adjacent AP according to parameters indicated by a network side AP, adjusts switching algorithm according to the parameters indicated by the network side AP to select the adjacent AP to carry out switching, and then is switched to a proper AP in real time when fast moving in a WLAN overlay area and obtains satisfied access service and communication effects.

The invention provides an interactive mobile advertisement putting system base on user personalization and a return mechanism. According to the system, interaction between a server side and a user terminal is carried out. The server side contains an advertisement submitting module, a registration logging-in verification module, a user information management module, an advertisement task generation module, an advertisement task approving module, a sharing management module, a payment module, and a database. Because of the way of setting an interactive content in an advertisement content, on the one hand, whether the user watches the advertisement content completely and effectively can be verified, the advertisement communication effect is enhanced, and the cheating behavior can be prevented; and on the other hand, the sense of achievement of the user can be satisfied and the user can enjoy watching the advertisement. If the user terminal 120 can be carried conveniently, the user can execute advertisement tasks by using fragmented time at any time and any place like at a subway, on a bus, or at an office.

The invention discloses a position-information-based device-to-device (D2D) clustering multicast method in a cellular network. The method comprises the following operation steps that: terminals upload own geographical position, transmission distance and residual energy information to a base station; the base station clusters the terminal by using a geographical-position-based clustering method according to the obtained information of all the terminals in a D2D area, and transmits clustering information to all the terminals; and after all the terminals receive the clustering information, two-hop transmission is realized by adopting a multicast transmission mode to ensure that all the terminals in the area can reliably receive data from a source terminal. According to the method, network layer topology and a multicast transmission technology are combined, so that the method is low in computational complexity, easy to implement and quite favorable for the realization of D2D communication in the cellular network, a D2D communication effect in a scenario with a plurality of terminals is greatly improved, the transmission energy consumption of the terminal is reduced to a certain extent, an energy utilization rate is increased, and terminal running time in the D2D communication is prolonged. The method has broad popularization and application prospect.

The invention discloses an AP (application process) switching method used in WiFi (wireless fidelity) communication, and provides a WiFi access point switching method for dynamically adjusting threshold values in real time. The AP switching method is characterized in that after a mobile terminal detects received signal intensity of a currently connected AP, the signal intensity is compared to a scanning threshold value, scanning is started if the signal intensity is lower than the scanning threshold value, and scanned adjacent AP information is dynamically stored; the mobile terminal continues detecting received signal intensity of the currently connected AP, the signal intensity is compared to a switching threshold value, AP switching is realized if the signal intensity is lower than the switching threshold value, and a switching object is an AP access point with the highest stored signal intensity; and the scanning threshold value and the switching threshold value are adjusted simultaneously. By the AP switching method, the mobile terminal can be quickly switched to the optimal AP when moving within a coverage area of a WiFi network, and satisfactory access service and communication effect are obtained.

The invention discloses a method of connecting bilateral Bluetooth earphones. The bilateral Bluetooth earphones comprise a first Bluetooth earphone and a second Bluetooth earphone. The method comprises the following steps of: alternatively connecting the first Bluetooth earphone and the second Bluetooth earphone by using prestored first Bluetooth address and second Bluetooth address to separately acquire connecting signal strength of the first Bluetooth earphone and the second Bluetooth earphone; and determining master and slave earphones according to the connecting signal strength of the first Bluetooth earphone and the second Bluetooth earphone. According to the technical scheme, the master and slave earphones are intelligently switched, the power consumption of the system is reduced, and a mobile terminal can flexibly select the earphone with relatively excellent connecting signal strength to connect, so that the communication effect is ensured and the user experience is enhanced.

The invention is applicable to the mobile terminal field and provides a method, a system and a mobile terminal for prompting contact information in a communication process. The method comprises the following steps: recognizing voice in the communication process into characters; detecting whether the characters contain key information; if so, extracting statements containing the key information; searching the related contact information matched with the key information statements in a contact database; and displaying the searched related contact information in a communication interface. The invention can cooperatively display the related contact information in the communication interface timely, facilitate check of users, solve the problems in the prior art that the search interface of an address book is required to be entered when the contact information in the communication process is searched, and a plurality of operating steps are performed to find out the related contact information so as to influence the communication effect with the opposite side to a great extent.

The invention relates to a method and device for improving a dialogue communication effect based on speech analysis. The method comprises the following steps: determining the relationship of a user and a call object; on the basis of the call speech information of the user and the call object, obtaining the speech emotion and the speech words of the user; comparing the speech emotion with a call object and sensitive emotion library relationship list established in advance so as to determine whether the user is in a inappropriate emotion state or not; comparing the speech emotion with the call object and sensitive emotion library relationship list established in advance so as to determine whether the user uses inappropriate sensitive words or not. The method finds the problem in the user dialogue process through the emotion analysis and semantic analysis for speech in speech communication and the relationship analysis of the user and the call object, so as to help the user to find the problem in time to improve the communication mode and play a role of improving the communication effect among families and friends.

The invention discloses a power distribution terminal plug-and-play communication method based on an IEC 61850 standard, comprising that: a power distribution terminal transmits registration information to a main station terminal; the main station terminal receives and verifies registration information; if the registration information is inconsistent, a information model file is issued to the power distribution terminal according to the registration information or the information model filed is obtained through the power distribution terminal, so that the registration information received by the main station terminal is consistent with the registration information transmitted by the power distribution terminal; the main station terminal parses the information model file into a communication point table according to the corresponding mapping relation; the power distribution terminal transmits real-time operation information of a power distribution network to the main station terminal according to the local information model;and the main station terminal receives real-time operation information of the power distribution network and controls the power distribution terminal through orders. The invention, through the interaction of information models, realizes the self-description of the power distribution terminal and automatic recognition and automatic analysis performed on the function points of the power distribution terminal by the main station terminal so as to achieve the plug-and-play communication effect of the power distribution terminal when the power distribution terminal accesses the network, modifies configuration, updates and maintains the system.

The invention discloses a method and a device of a transmission channel. The method comprises the following steps of: determining the transmission type of a target from at least two transmission types according to the channel condition between the target and a base station, wherein the at least two transmission types occupy time-frequency resources with different numbers when same information is transmitted; and performing communication with the base station on the time-frequency resources occupied by the transmission type of the target. The method and the device disclosed by the embodiment of the invention can be used for configuring the at least two transmission types which respectively occupy the time-frequency resources with the different numbers for UE (User Equipment) and the base station and determining the transmission type used during the communication according to the channel condition between the UE and the base station, thereby adjusting the transmission type of the communication between the UE and the base station in a self-adapting way according to the actual channel condition between the UE and the base station, enhancing the communication effect of the UE and the base station, enhancing the user experience and enlarging the coverage range of the base station.

The invention relates to a method for applying a virtual reality technology to a fabricated building industry. The method comprises the steps of firstly, building 3D models of fabricated building members, and endowing the fabricated building members with attribute information; secondly, establishing fabrication rules of the fabricated building members through a virtual reality system; thirdly, performing splicing construction of the fabricated building members based on the fabrication rules of the fabricated building members in a VR scene by a designer through wearing a VR device to generate a fabricated building; and finally, performing rationality verification on the generated fabricated building, and if the verification succeeds, exporting a fabricated building member list and calculating total mass of the fabricated building based on member list information. According to the method, the immersive experience of a fabricated building design process is realized based on the VR technology; a design concept of the fabricated building is accurately passed on; the communication cost is reduced; and the communication effect is improved.

The invention provides a multi-screen multi-picture realization method and a system in a video conferencing system. The video conferencing system comprises a multipoint control unit and a plurality of terminals; the method includes the following steps that: (a) the terminals establish connection with the multipoint control unit and send local video streams to the multipoint control unit; (b) the multipoint control unit composes the input video streams of the terminals into a plurality of output video streams; (c) the multipoint control unit sends the output video streams to the terminals, wherein the content of each output video stream is a multi-picture video composed by one or a plurality of input video streams; (d) the terminals display the output video streams on a plurality of displays after reception. According to the method of the invention, the terminals taking part in communication can use a plurality of displays to display video images of a plurality of far end conference rooms, and users can see more and larger video images of the far end conference rooms, thereby improving the video experience of the users, strengthening the communication effects of users and promoting the use value of the system.

The invention discloses an RUDP-based real-time video transmission method under internet condition. By adopting a client / server (C / S) structure model, the technical scheme comprises specific steps of video data distribution, packet loss detection, report receiving, packet loss recovery, receiving end data sorting, decoding and display and the like. According to the RUDP-based real-time video transmission method under internet condition, problems that video receiving is delayed and paused, mosaic appears on the picture, the screen is blurred and the like due to network congestion, data packet loss and the like can be solved under the internet condition. The RUDP-based real-time video transmission method under the internet condition has the main advantages that existing network conditions of the user can be improved without extra spending and the user can make use of the existing network condition to obtain clearer and smoother video communication effects.

The invention discloses a mobile terminal communication method. An external antenna is arranged in a protective back cover of a mobile terminal. The method comprises the following steps that: the mobile terminal detects signal intensity in a current environment; and the mobile terminal is controlled to use an internal antenna or the external antenna to perform wireless communication according to the detected signal intensity value. The invention also discloses the mobile terminal. By the method and the mobile terminal, a good communication effect can be achieved in an environment which has low signal quality, so that communication quality can be improved.

The embodiment of the invention discloses a method for controlling the peripheral environment volume of a mobile terminal and a mobile terminal, wherein the method comprises the following steps: obtaining a volume decibel value which is sent by electronic equipment in the peripheral environment; judging whether the volume decibel value is beyond a preset threshold value or not; and if so, sending volume control signals to the electronic equipment in a wireless transmission mode so that the electronic equipment adjusts the volume according to the volume control signals. The volume of the peripheral electronic equipment is controlled when the incoming call or outgoing call gets connected by a mobile terminal user; remote controllers corresponding to the electronic equipment in the peripheral environment do not need to be searched one by one, and the volume of the electronic equipment in the peripheral environment is automatically adjusted; the difficulty and consumed time for searching the remote controllers are reduced; simultaneously, the communication of the mobile terminal user cannot be interfered by the noise of the peripheral electronic equipment; the communication quality and communication effect of the mobile terminal are prompted; and the experience of the mobile terminal user in communication is strengthened.

The invention relates to the technical field of intelligent televisions and provides an intelligent television system and an intelligent television method capable of expanding a cellphone. The system comprises an intelligent television, a cellphone, a communication network and telecommunication equipment, wherein the intelligent television is in butt joint with the cellphone in wireless connection mode, the cellphone can build speech / video phone communication connection with the telecommunication equipment through the communication network, the intelligent television can input speech / video phone message received from the telecommunication equipment by the cellphone; and / or the intelligent television can collect a speech / video phone message and send the phone message to the telecommunication equipment through the cellphone. The intelligent television can expand speech / video communication capacity to fully utilize the advantage that the television is strong in audio and video playing capacity, thereby enabling users to achieve good speech / video communication effects. Due to the fact that communication is not based on specific network software, user experience is enhanced and safety is improved.

The invention discloses a multimachine Bluetooth group communication method based on an Android system, which manly solves the problem that when the existing G network or C network is in a weak signal area, the communication quality is poor, and the communication expense is high. The method comprises the following steps: Bluetooth is started by main Android equipment and auxiliary Android equipment, a Bluetooth Adapter is created by the main equipment to search surrounding auxiliary equipment, and the main equipment and the auxiliary equipment are matched and connected to create a Bluetooth piconet; a Thread for each auxiliary equipment is created by the main equipment to monitor a communication request, the Thread created by the main equipment is responded by each auxiliary equipment to initiate the communication request, data is transmitted and received by the main equipment and the auxiliary equipment, and the received and transmitted data is updated to message interfaces of the main equipment and the auxiliary equipment timely. The invention has the advantages that the zero communication expense is realized, the communication effect in the weak signal area is good, in addition, the intervention of a third party is free, and the new method is suitable for the data communication of short-distance smart phones.

This invention discloses a method for selecting interframe prediction mode in video image interframe prediction coding process, which contains dividing video image sequence into different area according to different attribute, limiting the selectable interframe prediction mode of each image according to the block scale distribution property of different image area, selecting corresponded interframe prediction mode and coding in limited interframe prediction mode for each macro block in each image area. Said invention simplifies the selection process and raises efficiency and communication effect.

The invention provides a mobile underwater acoustic communication method which includes the following steps: carrying out channel encoding and digital modulation on a data source at a sending end to get serial data, and converting the serial data into a parallel data flow; inserting pilot data into each group of parallel data, and carrying out sub-carrier modulation through inverse fractional Fourier transformation; adding a guard interval to modulated symbols, converting the modulated symbols into serial data, and sending the serial data; carrying out serial-to-parallel conversion and removing the guard interval at a receiving end, and searching for the optimal order through an order scanning search iterative algorithm; carrying out sub-carrier modulation on signals through optimal-orderfractional Fourier transformation, and carrying out channel estimation and equalization in the fractional Fourier domain at the receiving end; and after equalization, removing the pilot data, carryingout parallel-to-serial conversion to get serial data, carrying out digital demodulation and channel decoding, and outputting obtained data from the receiving end. The method has the advantages of simple structure and high calculation speed. The algorithm complexity of the transmitter and the receiver is reduced. The Doppler frequency shift in underwater acoustic mobile communication is reduced. The communication effect is improved.

The invention discloses an audio and video communication method, device and system. The method comprises the following steps that a first user registers via an XMPP (XML-based Messaging and Presence Protocol) server and acquires the identity information of a second user; the first user sends an audio and video communication request to the second user according to the identity information of the second user, receives the address information of the second user transmitted by an STUN (Simple Traversal of UDP over NATs) server and acquired according to the request information of the first user, and establishes a communication link with the second user according to the received address information of the second user; the first user processes extracted audio and video data via WEBRTC (Web Real-Time Communication), encapsulates in the form of an XMPP protocol to obtain audio and video data to be transmitted, and transmits the audio and video data to be transmitted on the communication link established between the first user and the second user to realize audio and video communication between two ends. By adopting the method, an end-to-end high quality communication effect can be realized among equipment without a server.

The invention relates to a two-way interactive searching method capable of producing instant communication effect. A search engine system extracts the logon message, the published information, the history search information and the current interest information of a user, matches the user requirement in a local database and an external data source with a current user key information database and feeds the match result back to the current user in a manner of match list. If the user in the match list has already logged in, the user in the match list receives a user list for help and a user list for searching latent user fed back by the system simultaneously, and the communication manner in the list is converted to a link that can achieve instant communication immediately. The invention has the advantages that the object to be searched can actively search the searching object, and the searching object can dynamically match the object to be searched, thereby achieving two-way searching and instant communication between a searcher and an information publisher, such that the information publisher can achieve instant communication with the latent consumer in the first time.

The invention relates to the technical field of the underwater communication, and aims to provide an underwater multi-path communication method based on frequency spectrum perception and prediction, which comprises the following steps: establishing a prediction model on use status information of each channel; predicting the current use state of the channel according to the delay information of the node of a occupied channel; and on the basis, selecting a proper channel to carrying out the communication. The frequency spectrum prediction mechanism provided by invention can enable the node to quickly access to a free channel so as to reduce access delay and improve the communication effect. By establishing the prediction model on use status information of each channel and predicting the current use state of the channel according to the delay information of the node of the occupied channel, the invention reduces data collision probability of multi-path communication, improves data transmission rate and spectrum utilization, saves node energy, and prolongs the cycle of network.

The invention relates to a handheld satellite communication terminal and a method for guiding a user to align an antenna with a satellite by using the same. The terminal comprises a main control chip, a satellite communication functional block, external equipment, display equipment, a global positioning system (GPS) positioning module, a magnetic field sensor and an acceleration transducer, wherein the satellite communication functional block and the external equipment are connected with the main control chip through a control interface and a data interface respectively; the display equipmentis connected with the main control chip through a display interface; the GPS positioning module is connected with the main control chip through a universal asynchronous receiver / transmitter (UART) interface; the magnetic field sensor is connected with the main control chip through an I2C interface; and the acceleration transducer is connected with the main control chip through a serial peripheralinterface (SPI). In the method, directions to which the satellite and the antenna point are calculated in real time and displayed on a terminal display interface in the form of icon and the user can be guided to conveniently, rapidly, vividly and correctly point the antenna to the direction of the satellite, so that a good communication effect is obtained when the satellite communication terminalis in field application and the problem of inconvenient operation (a large number of auxiliary equipment, time-consuming calculation and an undefined antenna direction) during alignment of the antenna with the defined satellite position of the satellite by a ground satellite communication terminal is solved.

The different advantageous embodiments provide a system for network communication testing comprising a communication effects server, a number of radio emulators, a number of radios, and a wireless link simulator. The communication effects computer is configured to provide a number of communication network effects. The number of radio emulators have a number of Ethernet signal-in-space emulators configured to output a number of Ethernet packets to the communication effects server. The number of radios is configured to transmit and receive messages over a radio frequency. The wireless link simulator is configured to provide simulated distance between the number of radios using real-time changes in a simulation running on a number of platforms.

The invention discloses a two-dimension code and a forming method and system of the two-dimension code. The two-dimension code is obtained by sequentially superposing a pattern B extracted from a two-dimension code A, a pattern D extracted from identification C and the two-dimension code A or by sequentially superposing the pattern B extracted from the two-dimension code A, the pattern D extracted from the identification C and the two-dimension code A with the pattern B removed. The two-dimension code has large-area identification, and thus the identification is easier to read and the brand communication effect and product publicity effect are improved. Besides, because the area of the identification is large, the two-dimension code is more beautiful, and people will feel better for the two-dimension code. According to the forming method and system of the two-dimension code, by obtaining patterns formed by low-lightness colors in the two-dimension code and the identification, part of the identification can be covered with the two-dimension code, influence of the identification on the error rate of the two-dimension code is reduced, the area of the identification is increased, and thus the two-dimension code and the identification can be perfectly combined.

The invention discloses a vehicle road early warning system for improving the traffic safety in a fog region of a highway. The system comprises an early warning control unit, a plurality of traffic induction units, visibility detection units, a plurality of short-range communication modules and the like, wherein the traffic induction units, the visibility detection units, short-range communicationmodules and the like are arranged on stand columns of crash barriers of the highway along a line. A vehicle position identification unit is in communication with the early-warning control unit through remote communication and distribution of satellites and the short-range communication modules on the highway so as to ensure the communication effect. According to an output result of the early-warning control unit, a driver is prompted to run safely through the traffic induction units and the vehicle-mounted vehicle position identification unit. For vehicle driving in a fog region of the highway, the safety operability and guidance of the driver can be improved, the potential safety hazard of the vehicle driving under low visibility can be effectively reduced, and safe driving of the highway can be guaranteed; and meanwhile, vehicles on lanes can be guided in real time, so that the traffic efficiency of the highway is fully exerted to the maximum extent, and the safe and efficient development of a highway traffic system are promoted.

Disclosed are an upper casing of an outer casing of a handheld computer and a manufacturing method thereof. The upper casing is combined by magnesium aluminum alloy materials and plastics, and is made of high-quality magnesium aluminum alloy materials which are casted or pressed into a magnesium aluminum alloy panel with curved edges at the surrounding. After going through passivating treatment, the magnesium aluminum alloy panel is placed in a plastic die of the upper casing of the outer casing of the handheld computer to inject through a hot pressing injection machine, thereby enabling the periphery of the magnesium aluminum alloy panel to be stably combined with plastics to form a semi-finished product. The semi-finished product is manufactured into the upper casing of the outer casing of the handheld computer which is combined by the magnesium aluminum alloy materials and the plastics after scientific polishing and finishing. The upper casing of the outer casing of the handheld computer which is manufactured by combining the characteristics of the magnesium aluminum alloy materials and the plastics achieves the communication effect of pressure resistance, strong impact resistance, not being easy to deform, and not affecting wireless operation, meets the requirements of modern information society, overcomes shortages of non-pressure-resistance, non-wear-resistance and easy deformation of the outer casing of the plastic outer casing of the handheld computer, and also overcomes the shortage that the outer casing of the handheld computer manufactured by the integral magnesium aluminum alloy materials affects wireless operation.

The invention provides an antenna structure and a mobile terminal. The antenna structure at least comprises a first metal radiation frame, a first antenna feed source and a first antenna matching circuit; the first metal radiation frame is arranged at one end of a metal back shell; a first fracture opening and a second fracture opening are formed in the first metal radiation frame; a first switch and a second switch are arranged corresponding to the first fracture opening and the second fracture opening; the first switch and the second switch are in a switched-on or switched-off state according to the posture of the mobile terminal, and the first fracture opening and the second fracture opening are formed in the adjacent side of the first metal radiation frame; the first end of the first antenna feed source is grounded and the second end of the first antenna feed source is connected with the first end of the first antenna matching circuit; and the second end of the first antenna matching circuit is connected with the first metal radiation frame. Therefore, the optimal radiation direction of the antenna structure can be adjusted by changing the fracture opening positions of the antenna structure according to the posture of the mobile terminal, thereby maintaining the communication effect of the antenna structure at a high state.