43 results about "Broadcast range" patented technology

Techniques are provided that may be implemented in a vehicle using various methods and / or devices to determine a location relative to a roadside unit (RSU) or other nearby reference point. A vehicle within a pre-specified range or within a broadcast distance or otherwise geographically adjacent to a roadside unit may share carrier GNSS phase measurement data by using broadcasts or other messages sent by the vehicle and / or the RSU, wherein the shared GNSS carrier phase measurement data may be used by the RSU to control and coordinate vehicle movement, speed, and / or positioning, and / or to determine the position of each vehicle relative to the RSU and / or other vehicles, or to determine the absolute position of each vehicle. The RSU may coordinate vehicle entry into the intersection, manage vehicle speed, and coordinate or control vehicle actions (such as decelerating, braking, and lane changing, or delivering vehicles to specific locations).

The invention provides an Internet of Vehicles emergency information dynamic broadcast and multi-vehicle cooperative response system. The system comprises at least one vehicle in distress equipped with a vehicle-mounted terminal, a plurality of peripheral cooperative vehicles equipped with vehicle-mounted terminals, a cloud platform, a vehicle database and a sensor. The invention also provides a collaborative response method. The method comprises the following steps: S1, emergency detection and help-seeking triggering; s2, uploading help request information to a cloud platform; s3, dynamically matching surrounding response vehicles; s4, broadcasting help information in a grading manner; s5, response feedback processing is carried out; s6, rescue coordination and notification; and S7, dynamically updating and ending. The system is timely in response, efficient in cooperation, high in safety and compatible and extensive; the rescue process is more efficient and orderly; and the broadcast range and frequency are dynamically adjusted, so that enough surrounding vehicles can timely obtain help information, and interference is avoided.

Systems and methods are provided for presenting media streams based on changes in geolocation. A MapView system may receive a first positioning signal indicating a first geographical location of a user device. The MapView system may determine a first media stream to be presented by the user device based on the first geographical location and a location of a source of the first media stream. The MapView system may then facilitate a presentation of the first media stream by the user device. When the MapView system receives a second positioning signal indicating a second geographical location of the user device, the MapView may identify, a second media stream to be presented by the user device based on the second geographical location being in broadcast range of the second media stream. The MapView system may then facilitate a presentation of the second media stream by the user device.

An indoor mapping system utilizing beacons is described. The system includes a premises map, a beacon disposed within the premises, a plurality of measured signal strengths, and a wireless device. The beacon location is layered on the map, and the measured signal strengths are captured from the beacon. The wireless device includes an indoor positioning module, and the wireless device receives a beacon signal when it is within a broadcast range of the beacon. The wireless device determines a signal strength of the received beacon signal. The indoor positioning module associates the measured signal strengths with their corresponding beacon location. The beacon location is further associated with a plurality of calculated signal strengths that are generated from the measured signal strengths. The indoor positioning module determines that the wireless device is at a location by comparing the received beacon identifiers and signal strengths with the calculated signal strengths.

The application relates to the technical field of vehicle communication, and provides an image sharing method and device based on V2X. The method comprises the following steps: receiving an image acquisition request about a target object; determining a first broadcast range with the position of the target object as the center and a first distance as the radius; broadcasting the image acquisition request to each V2X terminal in the first broadcast range, so that each V2X terminal collects images including the target object and sends the images to the vehicle end; receiving the images sent by each V2X terminal; analyzing all the images and determining an image set corresponding to the target object. According to the application, the image acquisition request is broadcast to each V2X terminal through the V2X technology, so that the images about the target object sent by other V2X terminals at their positions are acquired, the vehicle end can acquire more detailed and comprehensive information of the target object, meanwhile, the vehicle end does not need to stop, drive at a low speed or extra detour, and the driving safety is ensured.

A method is disclosed for tracking advertisement effectiveness. First information associated with desired advertising information is broadcast from at least one of a plurality of fixed information nodes. A mobile unit receives the broadcast information and outputs the desired advertising information. An advertisement counter is started at the time of receipt of the broadcast information and presence information is broadcast from at least one of a plurality of fixed monitoring nodes over a restricted broadcast range, which at least one fixed monitoring node is disposed in a predetermined fixed physical proximity with a vendor location. The broadcast presence information is received at the mobile unit and a presence counter is started in response to receipt of the presence information. At the mobile unit loss of receipt of the broadcast presence information, the presence counter is stopped.

The application discloses a biological macromolecule sequence structure prediction method, and relates to the technical field of computers. In the diffusion process, a geometric position coding gating mechanism is introduced, and a multi-scale attention broadcast mechanism is used to broadcast the attention weights corresponding to different attention types of the target information processed in different broadcast range modes, and the attention weights in different time steps in the broadcast range are reused, so that the same attention weight is used in the steps of the broadcast range, the calculation amount is reduced, the model efficiency performance is improved, the perception ability of the model to the amino acid position information in the protein sequence can be effectively improved, the model can fully consider the position relationship between amino acids when calculating the attention weight, the model can better identify the long-chain amino acid interaction, the structure prediction error caused by the missing position information is reduced, and the prediction precision is improved.

The invention discloses a method and a system for efficiently establishing a controlled interception area based on location information perception, and the method abandons the traditional flooding indifference forwarding logic, takes node location information as a core judgment basis for controlling message forwarding, and achieves the directional propagation of a control message by constructing a perception boundary. A source node broadcasts an RTS frame containing a position and an included angle threshold value, a receiving node calculates an included angle between a connecting line of the receiving node and a sending node and a connecting line of a sending-destination node, and forwarding is carried out only when the included angle is smaller than the threshold value, so that directional propagation of a control message in the source-destination direction is realized. And after receiving the RTS, the destination node broadcasts a CTS frame, and the node judges a relay or a blocking node according to hop count information to complete region establishment. According to the method, the broadcast range is judged and limited through the position included angle, redundant messages are reduced, broadcast storm is inhibited, overhead is reduced, and establishment efficiency is improved.

A commissioning device can include a commissioning device controller configured to: broadcast, using a first wireless communication technology, a query signal from a location in a spatial volume that covers a portion of an area of interest within the spatial volume; receive, using a second wireless communication technology, an acknowledgement signal from a local controller, wherein the acknowledgement signal includes an identification of each of a plurality of electrical devices located within a broadcast range of the query signal, wherein the plurality of electrical devices is a subset of all electrical devices in the system; determine that one of the plurality of electrical devices is located in the area of interest; and send a validation signal to the local controller, wherein the validation signal includes identifying information about the one electrical device.

The embodiment of the invention discloses a communication method and device, temperature measuring equipment, a distribution box and a system. In the embodiment of the invention, the temperature measuring equipment acquires the communication connection state with the first distribution terminal after determining the temperature data packet every time, and sends the wireless broadcast information carrying the temperature data packet when the communication connection state between the temperature measuring equipment and the first distribution terminal is disconnected; and sending the temperature data packet to the server by the second distribution terminal in the broadcast range of the temperature measuring equipment. Wherein the first distribution terminal is a distribution terminal bound with the temperature measuring device, and the second distribution terminal is a distribution terminal belonging to the same distribution group with the first distribution terminal. Therefore, the second distribution terminal helps the first distribution terminal to send the temperature data packet to the server when the communication connection between the first distribution terminal and the temperature measurement device is disconnected, and the embodiment of the invention can ensure the real-time performance and integrity of the temperature data sent to the server by the temperature measurement device, thereby better guaranteeing the user experience.

The invention discloses a cross-system trusted identity authentication and secure communication method based on a distributed soft bus, and relates to the technical field of intelligent traffic and network security. Authentication and scheduling are limited in a preset geographic partition, and a temporary dominant node is elected by a time window, so that the consistency and the broadcast range are remarkably reduced, and the security of the distributed soft bus is improved. Queuing and oscillation of the whole network level are avoided; in cooperation with weighted voting based on reputation and resources, stable and margin node bearing authentication is preferentially selected, and the organization degree and fairness under high concurrency are improved; preloading and version binding of a hash tree identity abstract are introduced, so that first packet verification replaces whole chain verification with path verification, and calculation of a handshake critical path and IO overhead can be moved forward and stably spread in partitions in an emergency scene; and when the abstract is mismatched or suspicious, the system automatically returns to a complete certificate chain and revokes check, so that the real-time performance is ensured, and the effectiveness is not sacrificed.

Various aspects of the present disclosure relate to protecting broadcast ranging and positioning messages over sidelink interface. An initiator user equipment (UE) can initiate a ranging or positioning procedure with secondary UEs that are in close proximity with the initiator. The initiator UE sends a sidelink (SL) broadcast message with a requested positioning or ranging action, along with a temporary group identifier. The secondary UEs perform the requested positioning or ranging action and return their results to the initiator UE. The results are protected (e.g., encrypted) using one or more keys associated with the temporary group identifier. These one or more keys may be a group broadcast key known by all of the secondary UEs, or individual broadcast keys for the individual secondary UEs.

A communication method and apparatus, relating to the field of communications, can reduce the difficulty of maintaining wireless parameters for a cell broadcast center and obtain updated wireless parameters in real time. In this method, a first network element registers and stores first information about a first device (access network device or mobility management network element) in the mobile network within the broadcast range of the cell broadcast center, based on a first message. This enables the cell broadcast center to send a second message to the first network element, providing the first information to the cell broadcast center, and thus allowing the cell broadcast center to complete broadcast services within the corresponding geographical area based on the first information.

The invention discloses a positioning time service method for satellite communication and related equipment. The method comprises the following steps: firstly, determining a message frame of a navigation message to be broadcasted by a satellite; the message frame comprises a plurality of message subframes; the target time slot corresponding to any one of the plurality of message subframes is used for broadcasting the message data of any one message subframe, and the remaining time slots except the target time slot in the time domain where the target frequency subband corresponding to any one message subframe is located are used for broadcasting the ranging code of any one message subframe; and then, for each message subframe in the plurality of message subframes, broadcasting a navigation signal of the message subframe to the terminal on the target frequency sub-band corresponding to the message subframe. The method comprises the following steps: determining a target frequency sub-band of each message sub-frame of a navigation message, setting a target time slot corresponding to each message sub-frame as message data of a broadcast message sub-frame, and setting residual time slots, except the target time slot, of a time domain where the target frequency sub-band corresponding to each message sub-frame is located as broadcast ranging codes; the Doppler ranging precision can be improved.

The present application relates to a public broadcasting method, system, intelligent terminal and storage medium, belonging to the field of broadcasting, wherein the method comprises obtaining a data packet to be played; selecting a preset playback mode based on the data packet to be played; obtaining object identification information when the playback mode is an object mode; obtaining monitoring data containing the object identification information based on the object identification information and monitoring data, and marking the corresponding monitoring data as valid monitoring data; obtaining the device position of the corresponding monitoring device based on the valid monitoring data, and marking the corresponding device position as the target device position; transmitting the data packet to be played to a broadcast module whose broadcast range covers the target device position, so that the corresponding broadcast module plays the data packet to be played. The present application has the effect of facilitating the improvement of the intelligence and playback effect of public broadcasting.

The invention discloses a biomacromolecule sequence structure prediction method, and relates to the technical field of computers. The attention weights corresponding to different attention types of the processed target information are broadcasted in different broadcast range modes by using a multi-scale attention broadcast mechanism, and the attention weights in different time steps in the broadcast range are repeatedly used, so that the same attention weight is adopted in the steps of the broadcast range, the calculation amount is reduced, and the efficiency is improved. The efficiency performance of the model is improved, and the perception ability of the model to amino acid position information in a protein sequence can be effectively improved, so that the model can fully consider the position relationship between amino acids when calculating the attention weight, and the model can be helped to better identify the interaction of long-chain amino acids; the structure prediction error caused by the missing of the position information is reduced, and the prediction precision is improved.

This disclosure relates to an electronic tag identification method, a reader chip, an electronic tag chip, and a system, belonging to the field of near-field communication technology. It can quickly identify the binding relationship between a reader chip and an electronic tag chip, and locate the reader chip. The electronic tag identification method includes: broadcasting a binding code, which triggers electronic tag chips within the broadcast range of the reader chip to send an identification code to the reader chip; the identification code is determined based on the identity information of the electronic tag chip; receiving the identification code sent by the electronic tag chips within the broadcast range; determining a first comparison result based on whether the received identification code matches the target identification code of a target electronic tag chip, at least based on the first comparison result determining that the target electronic tag chip is within the broadcast range of the reader chip, wherein the number of bits in both the binding code and the identification code is less than the number of bits in the identity information of the electronic tag chip.

The invention provides a mobile ad hoc network communication method and related equipment. The mobile ad hoc network communication method comprises the following steps: determining a mobile ad hoc network type; in response to determining that the mobile ad hoc network is a non-sparse mobile ad hoc network, determining a source node, a destination node, source node position information and destination node position information in the non-sparse mobile ad hoc network; determining a broadcast range according to the source node position information and the destination node position information, determining a next hop node according to the broadcast range, and performing communication according to the next hop node; and in response to the fact that the mobile ad hoc network is determined to be the sparse mobile ad hoc network, performing communication through a replication-based routing protocol.

The present application relates to the technical field of wireless communication, in particular to a kind of ultra-wideband concurrent identification method and system, applied to base station, and base station wireless covers multiple tags, comprising: receiving the data packet sent from tag;Data packet is pre-registration packet, and time slot number is allocated to tag and delay time is calculated, and it is sent to tag by allocation time slot packet;Data packet is point-to-point ranging packet, and update register and send ranging response packet;Data packet is broadcast ranging packet, and the time slot number occupied by tag is marked in register, and ranging response packet is sent;Data packet is ranging end packet, and the distance with tag is calculated.The present application can be applied in mine environment, and base station and tag do not need to be strictly time synchronized, and system positioning capacity is higher.Simplify the cumbersome registration process of previous tag, improve system time utilization, and reduce the waiting time of tag by optimizing tag registration process, the present application improves the registration rate per unit time of system and the overall stability of ranging.

This application discloses a message transmission and control method and apparatus to solve the problem of low overall V2X communication efficiency caused by overlapping and interference between multiple Roadside Units (RSUs) due to their default maximum transmit power. The message transmission control method provided in this application includes: acquiring the location information of multiple Roadside Units (RSUs); determining a message broadcast range reference value for the multiple RSUs based on the location information; and notifying the multiple RSUs of the message broadcast range reference value.

The application discloses a cross-system trusted identity authentication and secure communication method based on a distributed soft bus, and relates to the technical fields of intelligent transportation and network security. The application limits authentication and scheduling within a preset geographical partition, and elects a temporary leading node in a time window, thereby significantly reducing consistency and broadcast range, avoiding network-level queuing and oscillation. In combination with weighted voting based on reputation and resources, the application preferentially selects stable and surplus nodes to bear authentication, and improves organization degree and fairness under high concurrency. The application introduces preloading and version binding of a hash tree identity digest, replaces whole-chain verification with path verification for first packet verification, and in a burst scenario, can move the calculation of a handshake key path and IO overhead forward and stabilize the propagation within a partition. When the digest is mismatched or suspicious, the application automatically falls back to complete certificate chain and revocation check, thereby guaranteeing real-time performance without sacrificing effectiveness.

The invention discloses a game interaction method, device and equipment and a computer readable storage medium, and belongs to the technical field of Internet. The method comprises the steps that a game playing picture is displayed, a first virtual object and a first expression located in a virtual environment are displayed in the game playing picture, and the first expression is determined based on the playing condition of the first virtual object; under the condition that the first expression is triggered, a first multimedia resource corresponding to the first expression is sent to terminal equipment corresponding to a second virtual object, and the second virtual object is determined according to at least one of the position where the first virtual object is located, the broadcast range corresponding to the first expression or the game team corresponding to the first expression. The first expression determined based on the game playing condition of the first virtual object is displayed in the game playing picture, the actual game playing condition is better met, and the information display accuracy and the interaction efficiency are high. In addition, the second virtual object is not constant, so that the flexibility and interestingness of game interaction are improved, and the interaction rate is further improved.

The invention discloses an information processing method, a related device, equipment and a storage medium, and is applied to the field of map processing. The method comprises the steps of obtaining first object information corresponding to a target virtual object at a first moment, wherein the first object information at least comprises first position information of the target virtual object; k cells are obtained according to the first position information, the K cells comprise at least one of top-layer cells and bottom-layer cells, the top-layer cells belong to cells in a top-layer view grid, the top-layer view grid is obtained by dividing based on an original map, the bottom-layer cells belong to cells in a bottom-layer view grid, and the bottom-layer view grid is obtained by dividing based on the original map; the bottom-layer view grid is obtained based on top-layer cell division; and broadcasting the first object information according to the K cells. According to the invention, the implementation logic is simple, the maintenance cost is relatively low, and the broadcast range can be effectively controlled, so that the consumption of equipment performance is reduced.

The invention discloses a communication method and system under the same-frequency condition, relates to the field of wireless communication, and is used for improving the frequency point utilization efficiency and reducing the relay cost. According to the invention, an effective broadcast signal is selected from broadcast signals sent by an air interface for same-frequency receiving in a multi-time re-tracking mode; and the received broadcast signal is decoded to the local or is forwarded at the same frequency after being subjected to de-duplication and forwarding round auditing. According to the method, the signal is received and forwarded at the single frequency point, so that the frequency point utilization efficiency is improved, and the relay cost is reduced; when multiple paths of air interface signals exist, the relay node or the receiving node selects one effective signal for receiving in a multi-time re-tracking mode, so that the problem of signal transmission failure caused by conflicts is avoided; by designing the maximum number of forwarding rounds, the broadcast range and the transmission delay are effectively controlled.

Systems and methods are provided for presenting media streams based on changes in geolocation. A MapView system may receive a first positioning signal indicating a first geographical location of a user device. The MapView system may determine a first media stream to be presented by the user device based on the first geographical location and a location of a source of the first media stream. The MapView system may then facilitate a presentation of the first media stream by the user device. When the MapView system receives a second positioning signal indicating a second geographical location of the user device, the MapView may identify, a second media stream to be presented by the user device based on the second geographical location being in broadcast range of the second media stream. The MapView system may then facilitate a presentation of the second media stream by the user device.

A refilling device for an article of an aerosol provision system comprises a communications interface and control circuitry. The control circuitry is configured to receive a request to locate a lost aerosol provision system, determine an identifier for the lost aerosol provision system, broadcast, via the communications interface, an identification request, receive, from one or more aerosol provision systems via the communications interface, a response comprising an identifier for the aerosol provision system, and determine, by comparing the received identifiers to the identifier for the lost aerosol provision system, whether the lost aerosol provision system is within a broadcast range of the refilling device.

A system wirelessly receives identification of a reportable navigation event from one or more vehicles, the identification including vehicle location information. The system determines a locality to which the reportable event applies. The system determines one or more television broadcast stations predefined as having a broadcast area that covers the locality. Additionally, the system defines navigation data for vehicle navigation systems to address the event and deliver the navigation data to the determined television stations, along with broadcast instructions for the television stations to broadcast the navigation data via Advanced Television System Committee (ATSC) technology.

This invention discloses a voice intercom system supporting hierarchical relationships and adjacency awareness, relating to the field of wireless communication technology. It includes a cloud server and several user terminal devices. Each user terminal device includes: a communication module for establishing data transmission channels between the current user terminal device and the cloud server, as well as other user terminal devices; an adjacency awareness module for generating and broadcasting the local broadcast signal of the current user terminal device, and also for scanning the peer broadcast signals of other user terminal devices within the effective broadcast range; a local relationship database for storing a friend list, which includes several friends and a unique device identifier corresponding to each friend; a relationship management module for managing the local relationship database; and a policy control module for executing voice link management decisions. This solution can significantly improve the resource scheduling efficiency and user experience of the voice intercom system.

The application provides a rail transit dispatching system, a communication method and related devices thereof. The communication method of the rail transit dispatching system comprises the following steps: a wireless forwarding device arranged on a rail broadcasts device position information, so that a vehicle-mounted station in a broadcast range of the wireless forwarding device receives the device position information, the position of the vehicle-mounted station is determined according to the device position information, and vehicle-mounted station position information of the vehicle-mounted station is sent to the wireless forwarding device; the wireless forwarding device forwards the vehicle-mounted station position information to a dispatching station, so that the dispatching station displays the position of the vehicle-mounted station, and the dispatching station can communicate with the vehicle-mounted station through the wireless forwarding device. The method provided by the application can reduce the construction difficulty and construction cost of the rail transit dispatching system.

An interactive gaming system and methods are disclosed, utilizing Wi-Fi technology to transform a geolocation into a dynamic gaming environment. The system employs multiple Wi-Fi networks broadcasting distinct primary and secondary Service Set Identifiers (SSIDs). In some embodiments, the primary SSID is secured for network owner use, while the secondary SSID is designated for public access, broadcasting game-related data, or “nuggets.” A gaming application on user devices detects these secondary SSIDs, enabling players to connect and interact with virtual game elements. The system synchronizes with a central server or cloud service to manage game logic and player progress, leveraging geolocation data for location-based challenges. Wi-Fi configurations are optimized for stable gameplay data transmission, with signal strength data used by the system to determine the broadcast range of game elements. The system supports user-created games, updates leaderboards, pushes notifications, promoting physical activity and providing an immersive gaming experience.