38 results about "Wireless broadband" patented technology

This invention relates to broadband acousto-mechanical sensing (BAMS) systems and methods for monitoring physiological signals of a living subject, and applications of the same. Specifically, the system includes one or more wireless, skin-interfaced BAMS devices disposed on the living subject to form a body area network. The BAMS devices are time-synchronized and wirelessly communicate with each other, and each BAMS device includes an accelerometer, such as an inertial measurement unit (IMU), to capture acceleration data from the living subject and an acoustic mechanical device configured to capture body sounds from the living subject. A control device being time-synchronized and wirelessly communicate with the BAMS devices is used to manage and process the acceleration data and the body sounds from the one or more BAMS devices in order to generate information of body movements and body sounds of the living subject.

The embodiment of the invention provides a non-integral multiple sampling rate conversion method and device for a wireless broadband communication system. The method comprises the steps of performing calculation according to an input signal sampling rate and a target output signal sampling rate, and determining a target number of parallel Farrow filters; a least square method is adopted to optimize each Farrow filter, so that each Farrow filter has the same target order number; adopting a Lagrange interpolation method to determine a fractional interval of each Farrow filter; a Farrow filter with the target order is constructed, and the target number is instantiated; and adding the outputs of the target number of Farrow filters to obtain a target signal with the target output signal sampling rate. According to the technical scheme provided by the embodiment of the invention, the resource consumption of the non-integer multiple sampling rate conversion filter can be reduced on the basis of ensuring the signal quality.

The present application provides a receiving end and communication system for a wireless broadband signal, the receiving end comprising: a plurality of channel processing modules, a channel selection module and a data processing module, wherein: the channel processing module is used to perform predetermined processing on the initial data output by the channel to obtain a data packet; the channel selection module is communicatively connected to the plurality of channel processing modules, the channel selection module is used to receive target data sent by the channel processing module, and selects a target data according to the priority of the successfully synchronized channel processing module and sends it to the data processing module, the target data being a part of the data packet, and the target data comprising a flag field and a data field; the data processing module is communicatively connected to the channel selection module, the data processing module is used to receive the target data sent by the channel selection module, and parse the target data to obtain a parsing result, thereby solving the problem in the prior art that it is difficult to detect the usage of channels other than the main channel.

The invention discloses a wireless broadband ad hoc network method and system, and belongs to the technical field of wireless communication. The method comprises the following steps: acquiring position information, communication capability and moving characteristics of nodes, and dynamically fusing to obtain comprehensive capability information of the nodes; performing multi-dimensional relay evaluation on the nodes based on the node comprehensive capability information, and generating a network topology construction basis; performing dynamic topology optimization and link allocation on the candidate nodes according to the topology construction basis to generate an optimal topology structure; establishing multi-link two-way communication connection among the nodes to form a preliminary communication network; performing hierarchical link detection and bandwidth feedback evaluation on the preliminary communication network to obtain a hierarchical link state; and carrying out dynamic path negotiation and reconstruction based on a hierarchical link state to form a stable communication path and realize a self-repairing communication network. The method has high adaptability and robustness under the scenes of node high-speed movement, channel time varying and multi-service concurrency, and is suitable for the scenes of emergency communication, unmanned cluster cooperation and the like.

The invention discloses a method for detecting access signals in a wireless ad hoc network, and relates to the technical field of wireless broadband ad hoc networks. Based on a TDMA (Time Division Multiple Access) scheme, a plurality of subframes are divided in a frame structure, one or more subframes in the subframes are used as synchronous subframes, the synchronous subframes are composed of a plurality of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the last one or two symbols of the synchronous subframes are dynamically appointed as idle time slots according to resource use conditions and are used as detection access signals, so that users access signals or synchronous signals. According to pre-allocated parameters, determining the condition of sending a signal by detecting the access signal: whether the sending signal occupies all spectrum resources and whether subcarriers of the sending signal are continuous; and according to the condition of the transmitted signal, calculating time synchronization in the frequency domain or the time domain, estimating the frequency deviation in the frequency domain or the time domain, and estimating the power of the signal in the frequency domain or the time domain for controlling the power of the transmitted signal.

The utility model discloses a high-precision wireless broadband scanning positioning instrument which comprises a positioning instrument body, a charging interface is arranged on the side face of the positioning instrument body, a battery box is arranged below the back face of the positioning instrument body, and the upper end of the positioning instrument body is rotationally connected with three sets of auxiliary locking pieces. An antenna is correspondingly connected to the middle of the auxiliary locking piece in a threaded mode, a switch knob is arranged on one side of the antenna, the switch knob is rotationally connected with the positioning instrument body, a rotating rod is arranged on one side of the auxiliary locking piece, the two ends of the rotating rod are rotationally connected with the positioning instrument body, a worm is fixedly connected to the rotating rod, and the worm is fixedly connected with the auxiliary locking piece. According to the utility model, after the antennas are clamped and fixed with the butt joint grooves on the auxiliary locking pieces through the rotating pieces, the adjusting knob is rotated to drive the worm to rotate, and the worm simultaneously drives the three groups of auxiliary locking pieces to rotate, so that simultaneous screwing of multiple groups of antennas is realized, and the antenna installation efficiency is improved.

The invention relates to a wireless broadband ad hoc network communication mode switching method and system based on a cluster unmanned scene, belongs to the technical field of unmanned aerial vehicle control, and solves the problem that an unmanned cluster system cannot safely and efficiently adapt to a wireless ad hoc network communication mode according to a task scene in the prior art. The method comprises the following specific steps: presetting a plurality of communication modes of an ad hoc network in a task life cycle of the cluster unmanned system; the cluster master control node receives the multi-mode sensing data collected by the slave control nodes respectively, and predicts a target communication mode by using a pre-trained graph neural network based on the multi-mode sensing data to obtain a to-be-switched target communication mode and a corresponding confidence value; whether mode switching is triggered or not is decided based on the confidence value, if the decision is triggered, the ad hoc network executes mode switching, the communication parameters corresponding to the preset target communication mode are configured, and efficient adaptation to the wireless ad hoc network communication mode is achieved.

The invention relates to the technical field of electric power communication, in particular to an electric power scene-oriented wireless broadband and narrowband cooperative anti-interference method, which is based on a WAPI protocol adapter and a micro-power wireless protocol adapter, and comprises the following steps of: respectively converting real-time acquired equipment operation state data into a UCI standard format, and uploading the data to a cooperative scheduling module through UCI; and analyzing and generating an optimal channel decision based on spectrum sensing and a decision engine, packaging the optimal channel decision into a UCI standard format, issuing the optimal channel decision to a WAPI protocol adapter or a micro-power wireless protocol adapter, converting the optimal channel decision into a corresponding WAPI native protocol command and a micro-power native protocol command, and synchronizing the command to WAPI equipment and micro-power wireless equipment for channel switching. Therefore, by establishing a unified control interface and a protocol adaptation mechanism, centralized sensing, joint decision and cooperative scheduling of broadband and narrowband systems are realized, and the problem of asymmetric interference is effectively relieved; and moreover, the 2.4 GHz frequency band interference state can be sensed in real time, and bidirectional collaborative interference avoidance of a wide and narrow band system is realized.

The utility model relates to navigation positioning communication integrated wireless broadband ad-hoc network communication equipment, which comprises an ad-hoc network equipment body, a partition plate is arranged in the ad-hoc network equipment body, the partition plate divides the interior of the ad-hoc network equipment body into an installation cavity and a ventilation cavity, the installation cavity is communicated with the ventilation cavity, and the ventilation cavity is communicated with the installation cavity. The ad-hoc network equipment body is provided with an exhaust fan on the side wall of the mounting cavity, the ad-hoc network equipment body is provided with a moisture-proof box communicated with the ventilation cavity, one end, far away from the ad-hoc network equipment body, of the moisture-proof box is an opening, and a moisture-proof mechanism is arranged in the moisture-proof box; the moisture-proof mechanism in the moisture-proof box dehumidifies air entering the moisture-proof box from the opening, then the air enters the ventilation cavity and then flows into the installation cavity, meanwhile, the exhaust fan works to exhaust the air with heat of the electronic component out of the ad-hoc network equipment body for heat dissipation, and the air is dehumidified through the moisture-proof mechanism and then enters the ad-hoc network equipment body. The moisture-proof effect is effectively achieved, and the service life of electronic components is prolonged.

The application provides a method for automatically binding a wired switching device and a wireless broadband channel device, and utilizes a two-layer multicast message to realize information interaction between the wired switching device and each wireless broadband channel device, to complete determination of a wireless service port and a wireless management port of the wired switching device, to complete mapping of the wireless service port and the corresponding wireless broadband channel device, and to complete automatic binding of a legal mapping relationship. The application completes the above three steps by sending and receiving responses of the two-layer multicast message, guarantees stability, accuracy and high efficiency of the automatic binding, takes ID information of the wireless broadband channel device as a basis for judging legality and verifying identity, and further guarantees correctness. The application can efficiently complete automatic binding of the wired switching device and each wireless broadband channel device under the premise of stability and accuracy.

Systems and methods for a dual-functional modular system for providing Internet Protocol (IP) phones with wireless broadband capabilities and a handoff from public cellular networks to a private business system. The method may include providing a plurality of IP phones with one or more modular Long-Term Evolution (LTE) upgrade units, wherein the plurality of IP phones gain LTE endpoint features; configuring the one or more units to connect to a private IP network; continuously monitoring signal strength of a public LTE network and the private IP network; detecting a mobile device with an active call; when the private IP network provides a more stable connection, initiating a handoff from the public LTE network to the IP network; transferring the active call data to an available LTE-equipped IP phone; monitoring the IP network; and when the IP network becomes unstable, reverting service of the active call to the public LTE network.

This utility model discloses an online monitoring system for confined space operations, including a confined mine shaft, a command center, and a control terminal. The confined mine shaft is equipped with ventilation ducts and multiple integrated detection devices, a wireless broadband self-organizing network, and ventilation openings. Negative pressure fans are installed at the air outlets of the ventilation ducts. Multiple wireless broadband self-organizing networks form a mesh network controlled by the command center. The integrated detection devices are wirelessly connected to the wireless broadband self-organizing network. The command center receives and transmits signals from the integrated detection devices through the mesh network. This online monitoring system for confined space operations achieves wireless transmission by establishing a mesh network controlled by the command center through multiple wireless broadband self-organizing networks. It controls the opening of electric air valves at each ventilation opening by controlling the composition of the circulating airflow, promoting circulation in zones to expel hazardous gases, and treating common flammable and toxic gases.

The application discloses a network access processing method, wireless broadband terminal and system, and particularly relates to the technical field of network access, which comprises the following steps: a multi-dimensional perception and information collection step, which collects multi-dimensional context information of equipment and reports the information; an intention analysis and policy binding step, which infers the business intention of the equipment based on the information and automatically generates and issues a fine-grained network policy; a security evaluation and policy correction step, which continuously monitors the security state of the equipment and automatically triggers policy correction according to dynamic scoring; a traffic self-learning and elastic scheduling step, which analyzes and predicts the traffic mode of the equipment and dynamically adjusts the network bandwidth resource quota thereof; and a session termination and resource cleaning step, which automatically cleans relevant policies and recycles resources after the equipment is offline. The application realizes a fundamental change from static configuration to dynamic scheduling based on intention and context by constructing an intelligent closed loop, and significantly improves the automation, security and resource utilization efficiency of network access.

The invention relates to a signal anti-interference method and device and electronic equipment, and relates to the technical field of wireless broadband communication. The method specifically comprises the following steps: performing multi-stage notch processing on a first bandwidth signal before down-sampling to obtain power of a plurality of frequency points; determining a reconstruction frequency spectrum of the bandwidth signal according to the power of the plurality of frequencies; determining a coefficient of an anti-interference filter according to the reconstructed frequency spectrum; and configuring the anti-interference filter based on the coefficient of the anti-interference filter so as to carry out anti-interference processing on the downsampled second bandwidth signal, therefore, by determining the coefficient of the anti-interference filter and configuring the anti-interference filter based on the coefficient of the anti-interference filter, the anti-interference processing can be carried out on the downsampled second bandwidth signal. According to the invention, the second broadband signal after downsampling is subjected to anti-interference processing, attenuation of an anti-interference filter to useful signals is reduced, suppression of adjacent channel interference signals is realized, the processing effect of signal anti-interference processing is improved, and thus the quality of the signals is improved.

The invention relates to the technical field of electronic equipment, and discloses a position recommendation method, device and equipment, which are used for improving the accuracy of position recommendation and improving the use experience of a user. The method comprises the following steps: the electronic equipment receives a first operation, wherein the first operation is used for instructing the electronic equipment to recommend the position of the wireless broadband equipment; the electronic equipment determines a measurement result set of the wireless broadband equipment, the measurement result set comprises measurement results under multiple different antenna angles, and the measurement results are used for evaluating the gain intensity of the directional antenna of the wireless broadband equipment. And the electronic equipment determines the target antenna angle of the wireless broadband equipment according to the measurement result set, so that the accuracy of position recommendation can be improved, the probability that a user perceives high gain brought by a directional antenna can be improved when the wireless broadband equipment is placed at the target antenna angle, and the use experience of the user is improved.

The utility model provides a wild animal protection monitoring system based on a multi-band wireless broadband ad hoc network strategy. The wild animal protection monitoring system comprises backbone nodes, secondary nodes and wild animal monitoring front-end equipment, the plurality of backbone nodes are mutually connected through a link of a first communication frequency band to form a backbone architecture of the ad hoc network; wherein one backbone node serves as a gateway and is used for gathering and uploading monitoring data; the backbone node provides a wireless AP access port for a secondary node through a second frequency band; and the secondary node is used for wireless or wired access of wild animal monitoring front-end equipment.

A method for extending connectivity from a core network to remote mobile networks includes: installing a security gateway between the core network and wireless broadband base stations located at a periphery of the core network; creating a virtual layer 2 (data link) overlay network interconnecting the broadband base stations; activating a local layer 3 (network) protocol between the security gateway and the core network; activating a sensor protocol between the security gateway and each remote mobile network, the sensor protocol being configured to use broadband communication through the broadband base stations when at least one broadband base station is in range of the remote mobile network, and otherwise use satellite communication; and providing each remote mobile network with a remote layer 3 protocol that uses the broadband communication until disconnected from the broadband base stations, and then uses the satellite communication until reconnected to one of the broadband base stations.

Aspects of the subject disclosure may include, for example, a device including a processing system that evaluates a need for additional data streaming resources at the device, and determines that a set of cooperating devices, located within a predetermined distance, is configured for sharing data streaming resources. The device receives the requested data from the cooperating devices in simultaneous streams, each stream including a segment of the requested data. The data source sends the requested data in parallel streams to the set of cooperating devices respectively, in accordance with addresses provided to the data source for each of the cooperating devices. The processing system assembles the requested data from the simultaneous streams. Other embodiments are disclosed.

The present invention discloses a wireless broadband self-organizing network communication system device in the field of wireless communication systems, including a portable box, an antenna base body is arranged on the top of the portable box, a movable ball head is movably installed above the antenna base body, and an antenna connector is arranged on the top of the movable ball head. The present invention can control the adjustment push rod and the adjustment motor action through the antenna adjustment button to adjust the angle and orientation of the antenna connected to the antenna connector, and the antenna adjustment operation can be performed at the remote end. Then, when the voice interactive communication signal is not good, the antenna can be remotely adjusted. After adjusting to the appropriate orientation, the clarity of the signal connection between each communication terminal transceiver can be met; the communication terminal transceiver, the communication repeater and the communication main server can be placed inside the portable box, which is convenient for the long-distance carrying operation of this communication system equipment. The back support pad is close to the back, which can improve the comfort of long-distance carrying.

The present invention relates to the technical field of routing path selection, and in particular to a path selection method for emergency wireless broadband Mesh self-organizing network in disaster areas. The method comprises: obtaining the overall evaluation value of the current node structure diagram according to historical nodes, current nodes, historical communication data vectors and current communication data vectors; obtaining the initial evaluation value of each current node according to the neighboring nodes of the current node, and recording the product of the overall evaluation value and the initial evaluation value of each current node as the target evaluation value of the corresponding current node; obtaining each cluster to be updated according to the original clustering cluster and the current node; updating each cluster to be updated according to the target evaluation value of each current node, obtaining the current clustering result at the current moment, and obtaining the routing path that meets the transmission requirements according to the current clustering result and the clustering DSR routing protocol. The present invention can select the routing path more accurately and efficiently.

A wireless television device includes at least one circuit board with one or more SIM card slots. The SIM card slots are configured to store at least one SIM card containing unique identification numbers and providing security codes for authentication. The wireless television includes a wireless module for capturing and processing wireless broadband connection signals according to wireless communication standards. A processor communicates with the wireless module to establish network links, obtain transmitted data, determine multiply sourced data traffic, and output appropriate audio and video signals to a display panel. The wireless television utilizes SIM card authorization from wireless service providers to enable wireless broadband connectivity and content delivery.

The invention discloses a channel knowledge map construction method based on a diffusion model in sea area communication. The method comprises the following steps: extracting channel characteristics and spatial position information of sampling points in a target sea area environment; on the basis of the channel characteristics and the spatial position information, predicting the channel characteristics of the to-be-detected point in the coverage area by using a diffusion model; combining the channel characteristics of the sampling points and the to-be-measured points to construct a sea area channel knowledge map; obtaining channel state information of a target position by searching a sea area channel knowledge map, and guiding antenna beam design and selection to realize sea area coverage; and optimizing the diffusion model by using subsequent measured data, and updating the sea area channel knowledge map. According to the method, the prediction generation capability of the diffusion model is utilized to assist in constructing the sea area channel knowledge map, and the channel state information is obtained by searching the map and is used for guiding multi-antenna beam design and selection in a sea area wireless broadband communication system, so that the application requirements of low-overhead and rapid construction of an efficient coverage network in a wide sea area are met.

The invention discloses a wireless broadband ad hoc network and a signal transmission method, and belongs to the technical field of wireless communication. A wireless broadband ad hoc network comprises a physical layer processing module, an intelligent antenna module, a network layer control module and a security encryption module. And the physical layer processing module adopts a coding orthogonal frequency division multiplexing technology and is combined with adaptive modulation and coding to suppress multipath interference. The intelligent antenna module realizes beam forming and spatial multiplexing based on multiple input multiple output. And the network layer control module realizes self-organizing multi-hop and dynamic topology reconstruction by optimizing a routing algorithm, and inhibits bandwidth attenuation in combination with a frequency reuse-space time division multiplexing technology. The security encryption module provides information source and channel dual encryption. All the modules are deeply coordinated, an integrated system with space-frequency coordination, multi-hop stable transmission and anti-interference is constructed, the transmission distance, networking flexibility and anti-interference capability are effectively improved, and the requirements of emergency communication, unmanned systems and other scenes for high bandwidth, low time delay and reliable and safe communication are met.

Embodiments of the present application disclose a wireless broadband device, a control method and apparatus thereof, and a storage medium. The control method of the wireless broadband device can comprise: receiving a wake-up instruction sent by a terminal device through a low-power communication module of the wireless broadband device when a first Wi-Fi module of the wireless broadband device is in a closed state; and switching the first Wi-Fi module from the closed state to a started state in response to the wake-up instruction. Through implementation of the method, automatic wake-up of a Wi-Fi module of the wireless broadband device can be realized.

A wireless IPTV SMART TV is provided with plurality of wireless modem modules configured to receive a plurality of wireless broadband connection signals synchronized from a plurality of cellular data networks, to process the plurality of wireless broadband connection signals, identify a set of data corresponding to a strongest wireless broadband connection signal strength, and convert said data into IPTV signals based on said IPTV provider access.

1. Name of the product in this design: Portable Broadband Wireless Device. 2. Purpose of this design: for wireless broadband transmission and coverage of mobile communication terminals. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention discloses an ad-hoc network radio station portable monitoring laying method, device and equipment and a storage medium, and the method comprises the steps: laying a video recording host as a monitoring system control center, and connecting a wireless broadband ad-hoc network radio station A to the video recording host through a network cable; a plurality of wireless broadband ad hoc network radio stations B and POE switches are arranged in a monitoring area, and monitoring cameras are connected to the wireless broadband ad hoc network radio stations B through the POE switches; the wireless broadband ad-hoc network radio station A and each wireless broadband ad-hoc network radio station B are adjusted to the same frequency band, so that the wireless broadband ad-hoc network radio station A and each wireless broadband ad-hoc network radio station B are automatically networked to form a Mesh network, and a camera channel is added through scanning of a video host to realize centralized management and control of the monitoring system, so that the monitoring system does not depend on a mobile communication public network and does not need deployment of a central station / relay station; the arrangement process is convenient and efficient, the deployment cost is remarkably reduced, the installation efficiency is greatly improved, and meanwhile centralized management and control of the monitoring cameras are achieved.

Methods and systems for detection and communication of wireless broadband degradation involve comparing time-series data obtained from wireless sensing with time-series data representing changes in a measure of the quality of service offered by a wireless link. The wireless sensing time-series data is analyzed to detect physical activity in the vicinity of a wireless router, extender, or mesh unit, for instance. If the analysis reveals a correlation between a period of volatility in the time-series data obtained from wireless sensing with a time of a persistent change in the quality of service over a link involving the wireless router, extender or mesh unit, then an alert is transmitted to a provider or user of the wireless network. The alert may indicate that human action may have resulted in the change in quality of service. The user may then take action to reverse the human action if required or desired.

The invention discloses an unmanned aerial vehicle early warning command vehicle which is characterized in that a compartment is divided into an antenna area, an operation area and a power generation area from front to back in sequence, an early warning radar antenna is installed on a lifting platform of the antenna area, and one side of the antenna area is provided with a display curtain wall, a plurality of groups of first cabinets, three groups of display and control consoles, a plurality of operation seats, a group of second cabinets and a plurality of sets of third cabinets; a 20kW diesel generator is installed in the power generation area, and an air conditioning cabin is arranged on the upper portion of the power generation area. A 1.8 m static communication antenna, a satellite television antenna, an electric lodging mechanism, a weather instrument, a rainfall sensor, a short-wave antenna, wireless broadband equipment, a poison gas alarm instrument probe and a monitoring camera are arranged on the top wall of the compartment. A manual lifting rod and an electric lifting rod provided with a photoelectric ball are installed on the two sides of the rear wall of the compartment respectively. The unmanned aerial vehicle is high in maneuverability, complete in structure and reasonable in configuration, real-time monitoring and on-site commanding of flight of the unmanned aerial vehicle are achieved, and low-altitude safety is ensured.