268results about "Broadcast specific applications" patented technology

The invention discloses an earthquake early warning device and method based on campus broadcast, and the method comprises the steps: carrying out the building response coupling analysis through receiving an early warning signal of an earthquake monitoring center, generating an earthquake magnitude-building coupling feature, and mapping the earthquake magnitude-building coupling feature into an enhanced early warning source adaptive to an acoustic environment; acoustic cavity detection is carried out based on threatened area identification, and differential playing topology is constructed; extracting a high-risk gathering area through personnel density scanning, generating personalized evacuation guiding content and determining a playing priority; high-precision time sequence control is realized by adopting a synchronous reference anchor point technology, and a multi-mode playing domain is constructed through carrier modulation and frequency division multiplexing; and finally, an acoustic navigation field is utilized to guide accurate scheduling and playing of audio signals, differential playing and accurate coverage of early warning information can be realized according to the anti-seismic characteristics and acoustic environment characteristics of different buildings, and an intelligent acoustic solution is provided for campus earthquake early warning.

The invention relates to the technical field of field operation safety management, and discloses a field operation personnel safety assessment method based on network data acquisition and positioning, which comprises the following steps: dynamically selecting an anti-interference mode by a multimode positioning technology to obtain positioning data, correcting track offset caused by terrain reflection interference by combining a track prediction model, and calculating the safety of field operation personnel. A signal enhancement node is utilized to construct an ad hoc network to optimize data transmission, a safety evaluation model fused with a topographic slope trend is established for purified positioning data, parameters such as a speed threshold and a safety judgment threshold are dynamically adjusted by detecting surrounding obstacle distribution in real time, and when a safety state is abnormal, the positioning data are subjected to safety evaluation. And generating an optimal risk avoiding path based on the terrain trafficability network, and synchronously starting three-channel emergency broadcast of the cellular network, the wireless talkback and the node relay. According to the method, the complex terrain positioning precision and the anti-interference capability are improved, the data transmission reliability is enhanced, dynamic risk assessment and early warning are realized, and the emergency response efficiency and the rescue success rate are improved.

According to the priority-based traffic broadcast switching method, device and equipment and the storage medium provided by the invention, by receiving and playing multiple paths of audio input signals and generating the emergency broadcast trigger signal when the rail transit operation state is abnormal, unified scheduling and control of multi-source audios are realized. Furthermore, according to the method, the emergency broadcast trigger signal is compared with the currently played audio signal through a priority judgment mechanism, and when the priority of the emergency broadcast trigger signal is higher, the low-priority audio is automatically interrupted and the emergency broadcast signal is preferentially played, so that the emergency information is ensured to be transmitted to the passenger at the first time, and the passenger safety is ensured. And delay or omission caused by other audio interferences can be avoided. The method provided by the invention not only improves the reliability and timeliness of emergency broadcast, but also realizes the dynamic management of the broadcast task through a priority mechanism, and gives consideration to the flexibility and practicability of the system while guaranteeing the safety.

The invention relates to the technical field of building safety monitoring, in particular to a building construction safety monitoring system with automatic detection and danger early warning functions. Comprising a multi-dimensional data automatic acquisition unit; a dynamic risk analysis unit; a grading danger early warning unit; and an emergency linkage control unit. According to the invention, through the construction stage identification module, the weight dynamic adjustment module and the risk quantification and feature matching module, the current construction stage is determined based on the excavation depth of the foundation pit, the installation elevation of the steel structural member and the total height of the building; the weight ratio of each physical parameter is dynamically adjusted by combining the basic weight matrix and the mechanical influence factor matrix of the corresponding construction stage, then the comprehensive risk value is calculated through the single-parameter deviation degree and the deviation acceleration, the hidden danger type is matched, and the risk analysis key point can be adjusted according to the structural mechanical characteristics of different construction stages. The problems of lack of dynamic adaptation capability and limited risk assessment precision in the prior art are solved.

To easily and quickly confirm the state of distributed facilities.SOLUTION: The system 100 includes a moving body 5 and equipment 3 arranged in a distributed manner in a target area A. The equipment 3 has a detection part 35 for detecting the state of the equipment 3, and a first communication part 36 for transmitting state information on the state of the equipment 3 detected by the detection part 35 by radio communication. Further, the moving body 5 includes a second communication unit 57 that receives the state information transmitted from the facility 3 by wireless communication when the moving body 5 moves to the vicinity of the facility 3 and reaches the vicinity of the facility 3.SELECTED DRAWING: Figure 3

The invention discloses an emergency broadcast decision-making method for dynamically reconstructing a broadcast list, which is characterized by comprising the following steps of: 1, monitoring running state parameters of a broadcast link in real time, the running state parameters comprising a signal quality parameter, a network link parameter, a server resource parameter and an audio stream content parameter; 2, when it is monitored that the operation state parameters are abnormal, fault diagnosis is carried out based on a preset knowledge base, and the knowledge base stores the mapping relation between fault features and disposal plans; step 3, generating a broadcast list reconstruction strategy according to the diagnosis result and a multi-dimensional characteristic factor of the current broadcast program, wherein the multi-dimensional characteristic factor at least comprises a program type, an importance level and a switching smoothness requirement; and step 4, executing automatic switching of the emergency audio streams according to the playlist reconstruction strategy. According to the invention, the problems of untimely emergency response, inaccurate decision, discontinuous fault handling and the like in a complex broadcast environment can be solved, the broadcast content can be quickly and dynamically reconstructed, and the broadcast continuity and the service quality are ensured.

To provide a technique for more preferably transmitting or receiving an advanced digital broadcasting service.SOLUTION: In a display control method in a broadcast receiving device that can receive a broadcast wave that are simulcast between a 4K broadcast service and a 2K broadcast service via a broadcast transmission line, the 4K broadcast service included in the broadcast wave is received, demodulated, a broadcast program of the 4K broadcast service is displayed, the 2K broadcast service which is a simulcast of the 4K broadcast service is received and demodulated when emergency broadcast information is received while a broadcast program of the 4K broadcast service is being displayed, the display screen of the broadcast receiving device is forcibly switched from the display of the broadcast program of the 4K broadcast service to the display of the screen of an emergency broadcast transmitted by the 2K broadcast service.SELECTED DRAWING: Figure 1

Methods, systems, and devices for wireless communications are described. A user equipment (UE), such as a narrowband internet of things (NB-IoT) UE, may determine whether a cell supports PWS notification and may respond accordingly. The UE may establish a wireless connection with a network entity associated with a cell. Then, the UE may receive, from the network entity via the wireless connection, a first message that indicates whether PWS notification is supported by the cell. The first message may be a master information block (MIB). The MIB may indicate that one or more PWS messages are scheduled. Additionally, or alternatively, the first message may be a first system information block (SIB). The UE may perform one or more operations to establish a connection with a cell that supports PWS notification.

The utility model discloses an emergency broadcast alarm device for a digital conversation ship, which comprises a protective shell and a loudspeaker, the right end of the top of the inner cavity of the protective shell is movably connected with a rotating shaft through a bearing, the middle end of the rotating shaft is fixedly provided with a second synchronizing wheel, and the bottom of the rotating shaft is fixedly connected with a protective cover. The outer surface of the protective cover is movably connected to the right end of the inner cavity of the protective shell. According to the utility model, through the arrangement of the loudspeaker, sailors can conveniently play the alarm information of the emergency broadcast when the digital communication ship encounters an emergency situation, so that surrounding sailors can timely discover the emergency situation and take corresponding safety measures; through the arrangement of a driving motor, a rotating rod, a first synchronous wheel, a fixing frame, a synchronous belt, a second synchronous wheel, a rotating shaft, a protective cover and a protective shell, the loudspeaker can be effectively stored and protected in the non-use period, and the probability that the loudspeaker is damaged due to the influence of the external environment is effectively reduced.

This invention belongs to the field of intelligent maritime surveillance technology, specifically a smart waterway monitoring and management system based on light beacons. It synchronously acquires multi-source heterogeneous information about vessels through integrated light beacon equipment, performs spatiotemporal registration and target association processing on this information, generates dynamic vessel trajectories, and extracts static attributes, motion behavior characteristics, visual activity characteristics, and environmental interaction characteristics. Utilizing a multi-evidence chain collaborative decision-making mechanism, it accurately identifies four fundamentally different vessel states: normal anchoring, illegal anchoring, active navigation, and uncontrolled dragging of anchor. This achieves a leap from state perception to behavioral cognition, significantly improving the accuracy of vessel anchoring identification and its robustness in complex scenarios. Based on the identification results, it triggers differentiated alarm strategies matching the state, generating handling instructions with reasons for the state determination, thereby greatly optimizing the allocation of surveillance resources and improving emergency response efficiency.

In one aspect, an example method includes (i) encountering, by a media playback device of a vehicle, a trigger to update a list of currently tunable radio stations; (ii) based on encountering the trigger to update the list of currently tunable radio stations, updating, by the media playback device, the list of currently tunable radio stations using a location of the vehicle and radio station contour data stored in a local database of the media playback device; and (iii) displaying, by the media playback device, a station list using the list of currently tunable radio stations.

The described technology is generally directed towards an adapting radio access network coverage for location-based alerts. A group of cells and / or cell sectors can be selected for sending an alert, according to selection techniques described herein. The selection techniques can provide a target level of cellular coverage for a geographic area, while avoiding over-inclusion of cells and consequent dissemination of alerts to subscribers outside the geographic area. The target level of coverage can comprise a desired amount of service overlap, to achieve a corresponding level of confidence that subscribers within the geographic area will receive an alert. The selection techniques can furthermore close identified coverage gaps within the geographic area.

In one aspect, an example method to be performed by a vehicle-based media system includes (a) receiving audio content; (b) causing one or more speakers to output the received audio content; (c) using a microphone of the vehicle-based media system to capture the output audio content; (d) identifying reference audio content that has at least a threshold extent of similarity with the captured audio content; (e) identifying a geographic location associated with the identified reference audio content; and (f) based at least on the identified geographic location associated with the identified reference audio content, outputting, via the user interface of the vehicle-based media system, a prompt to navigate to the identified geographic location.

The application provides an emergency broadcast message transmission system and method, comprising: an emergency broadcast platform, a transmission coverage network and an emergency broadcast access device; the emergency broadcast access device comprises an embedded multi-channel message access card and a fire message access card, the fire message access card comprises a fire broadcast controller; the emergency broadcast platform acquires an emergency broadcast message, compiles the emergency broadcast message to generate an emergency broadcast transmission instruction, and sends the emergency broadcast transmission instruction to the transmission coverage network; the transmission coverage network sends the emergency broadcast transmission instruction to the emergency broadcast access device through a corresponding channel; the embedded multi-channel message access card performs unsealing, signature verification and analysis processing on the emergency broadcast transmission instruction to obtain the emergency broadcast message; the fire message access card performs protocol adaptation and re-encapsulation processing on the emergency broadcast message to obtain a re-encapsulated emergency broadcast message; and the fire broadcast controller distributes and broadcasts the re-encapsulated emergency broadcast message in a fire broadcast system.

A radio data receiving device includes a memory, and a processor operatively connected to the memory, wherein the processor is configured to receive a zeroth stream based on a first frequency band about a radio data system (RDS), receive a first stream based on a second frequency band in which the RDS is extended, receive a second stream based on a third frequency band in which the RDS is extended, receive a third stream based on a fourth frequency band in which the RDS is extended, and provide a service about RDS data based on at least one of the first stream, the second stream, or the third stream.

To encourage users to visit the venue where the event is held.SOLUTION: A control system is provided with a determination unit 412 that determines whether a terminal device is located at the venue where the event is held, and a distribution unit 413 for distributing an event-related content Ca to the terminal device in parallel with the progress of the event if the result of the determination is affirmative.SELECTED DRAWING: Figure 4

The utility model relates to the technical field of broadcast management, and discloses an airport terminal broadcast voice level broadcasting system, which comprises a broadcasting unit, a broadcasting unit and a control unit, the broadcasting unit and the broadcasting unit are both connected with the control unit, the broadcasting unit is used for sending broadcast information to the control unit, and the control unit is used for controlling the broadcasting unit. The control unit is used for controlling the playing unit to play broadcast information; the broadcast information is internally provided with a broadcast level label, the broadcast level label is used for storing the priority level of the broadcast information, the control unit is internally provided with a broadcast level control module, and the broadcast level control module is used for adjusting the playing sequence of the broadcast information according to the priority level in the broadcast level label. The airport broadcast management system has the beneficial effect of high airport broadcast management efficiency.

The utility model relates to the technical field of construction site radios, and discloses a construction site radio with an anti-falling function, which comprises a radio body. The four corners of the radio body are respectively provided with an anti-falling structure used for preventing falling. Each group of anti-falling structures is detachably connected with the radio body; the anti-falling structure comprises a first anti-falling block and a second anti-falling block; the first anti-falling blocks and the second anti-falling blocks are symmetrically distributed at four corners of the radio body; and protection units for protecting four corners of the radio body are arranged in the first anti-falling block and the second anti-falling block. According to the radio set provided by the utility model, the detachable connection anti-falling structure is arranged, and the first anti-falling blocks, the second anti-falling blocks and the radio set body are detachably connected through the clamping strips and the clamping grooves, so that when the anti-falling blocks are broken or deformed due to long-term impact, only the damaged single first anti-falling block or the damaged single second anti-falling block needs to be detached for replacement; the whole radio shell or main body structure does not need to be replaced, and the maintenance cost is reduced.

FIG. 1 illustrates an apparatus for decoding according to an embodiment. The apparatus comprises an interface for receiving a plurality of ATSC Link-layer Protocol packets each of which comprising a packet header and a packet payload encapsulating digital content. Moreover, the apparatus comprises a decoding unit. In a first embodiment, the digital content being encapsulated within the packet payload of each of one or more ATSC Link-layer Protocol packets of the plurality of ATSC Link-layer Protocol packets comprises digital radio content, and / or a Distribution and Communications Protocol packet or a portion thereof, and / or Unified Speech and Audio Coding content or extended High Efficiency Advanced Audio Coding content, and / or Journaline content. The decoding unit is configured to decode the packet payload of each one of at least one ATSC Link-layer Protocol packet of the one or more ATSC Link-layer Protocol packets to obtain the digital content of said one of the at least one ATSC Link-layer Protocol packet.

The invention discloses a multi-path driver passenger full duplex emergency call and stop announcement broadcast coexistence method, and relates to the technical field of audio processing. According to the scheme, station reporting broadcast and multi-path talkback signals are transmitted at the same time through a single MVB bus, coexistence of multi-path driver passenger emergency calls and station reporting broadcast and talkback of a driver with multiple passengers at the same time are achieved, hardware redundancy of a traditional discrete communication channel is omitted, the system complexity and cost are reduced, and the communication efficiency is improved. According to the weight, the multiple paths of talkback audio data are combined, the voice quality of the multiple paths of audio signals is improved, and signal conflicts are also avoided.

System for a real-time radio receiver network, wherein the system comprises: a remote digital antenna digital receiver (“RDADR”) with a processor; a first remote digital antenna (“RDA”) comprising a processor, at least one receiver and at least one antenna; a second RDA with a processor, at least one receiver and at least one antenna, an audio source that is coupled to the transmitter; and an audio output device coupled with the RDADR, where the RDADR, the first RDA and the second RDA are coupled to each other via a digital bus, wherein the first RDA and the second RDA attempt to receive one or more digital signals from a transmitter, and if the one or more digital signals are received without error by the first RDA or the second RDA, the RDA that has received the one or more error-free digital signals transmits the one or more error-free digital signals via the digital bus to the RDADR, where the audio source generates one or more digital signals, and where the audio source is at least a microphone or a musical instrument.

The invention provides a cross-data-center emergency broadcast method and device. An emergency broadcast management system receives emergency command information input by a user through an emergency task configuration page; identifying the emergency command information to obtain emergency key information and an emergency range; sending the emergency key information to a data center in an emergency range; the data center receives emergency key information sent by the emergency broadcast management system; starting a corresponding emergency template in the emergency time period according to the emergency time period information and the corresponding emergency template description information; loading the emergency description information to an emergency template to obtain broadcast information; and controlling a broadcast system to broadcast the broadcast information. According to the invention, the user can freely set the emergency time period information, the emergency template corresponding to the emergency time period and the emergency range, the unified emergency broadcast of multiple data centers is realized, the emergency command rhythm of the data centers is standardized, the professional, standardized and digital levels of the operation work of the data centers are effectively improved, and the operation and maintenance management efficiency is improved.

To reduce the possibility that the audio from the previous audio source will be output from the speaker when switching audio source data used for broadcasting and outputting it through the speaker. [Solution] The processing unit 1 comprises a communication unit 12 and a control unit 10. The communication unit 12 can communicate with a distributed processing unit 2 which comprises an output unit 23. The output unit 23 outputs an audio signal to speaker SP2 of a broadcasting equipment system S1 which has a speaker SP2 for broadcasting. The control unit 10 causes the communication unit 12 to transmit first information and second information to the distributed processing unit 2. The first information is information about the sound source data selected from among a plurality of sound source data as the audio signal to be output to speaker SP1. The second information is information about the switching timing of the sound source data to be used as the audio signal.

To efficiently and accurately exclude a specific slave station belonging to a group from group broadcasting targets in broadcast communication.SOLUTION: A broadcast communication device 40 is an information processing device of a master station for performing broadcast communication on a group 50 including one or more slave stations 51, and includes an exclusion target slave station for excluding each of slave stations 51 belonging to the group 50 from broadcast communication targets for the group 50 on the basis of, inappropriateness information 410 representing inappropriateness of performing the broadcast communication on an individual slave station 51, a determination unit 41 for determining either a non-exclusion target slave station that is not excluded from the broadcast communication targets for the group, and a communication unit 42 for performing broadcast communication on a slave station 51 which is a non-exclusion target belonging to the group 50.SELECTED DRAWING: Figure 9

A radio data receiving device includes a memory, and a processor operatively connected to the memory, wherein the processor is configured to receive a zeroth stream based on a first frequency band about a radio data system (RDS), receive a first stream based on a second frequency band in which the RDS is extended, receive a second stream based on a third frequency band in which the RDS is extended, receive a third stream based on a fourth frequency band in which the RDS is extended, and provide a service about RDS data based on at least one of the first stream, the second stream, or the third stream.

The utility model discloses a kind of audio line sound-light integrated synchronous warning directional broadcasting devices based on, comprising: broadcasting component, light-emitting component and mounting assembly, the broadcasting component is used to broadcast warning information, the light-emitting component is set on broadcasting component for installing light-emitting element and cooperating broadcasting component to warn, the mounting assembly is arranged in broadcasting component for connecting light-emitting component with broadcasting component and controlling light-emitting component to emit light, the light-emitting component includes mounting plate, limit frame, magnetic sheet one, lamp strip, magnetic sheet two and buckle frame, the mounting plate is set on broadcasting component, the limit frame is fixedly installed on the outer wall of one side of mounting plate, the magnetic sheet one is evenly distributed on the inner wall of one side of limit frame. The utility model provides audio line sound-light integrated synchronous warning directional broadcasting devices based on, has the advantage that connecting circuit is integrated, reduces wire, facilitates the disassembly of repair and routine maintenance.

The invention discloses a radio station automatic updating method, device and equipment for a vehicle-mounted terminal, and the method comprises the steps: receiving a digital audio broadcasting signal from a receiving antenna, and analyzing the digital audio broadcasting signal to obtain corresponding configuration information and broadcasting audio information; judging whether the configuration information is matched with historical configuration information in a preset first cache space or not; if yes, playing the broadcast audio information; if not, identifying the configuration information according to a preset type identification strategy and historical configuration information to determine a corresponding change type; and updating and displaying the radio program information according to the change type and the configuration information, and switching to play the broadcast audio information. According to the radio station automatic updating method for the vehicle-mounted terminal, updating of the radio station program information is realized based on real-time detection of the configuration information, the problems of display disorder and audio playing interruption in the updating process can be avoided, and the reliability of updating of the radio station program information is greatly improved.

A network node obtains (302) a message to be transmitted as a public warning system notification to multiple LTEs, via one or more SIBs, and obtains (304) area information corresponding to the message. The area information indicates an area for which the message is relevant. The network node determines (306) how many SIBs are needed for transmitting the area information and segments (308) the message into a plurality of segments, based on how many SIBs are needed for transmitting the area information. The network node transmits (310) the message and the area information via SIBs, such that a segment of the message is included in each SIB and such that each portion of the area information included in a SIB is accompanied by a segment of the message. A UE receives the SIBs and assembles the message and area information, displaying the message if it is relevant.

The utility model relates to the field of electronic information discloses a public broadcasting device convenient to installation, including bottom plate and public broadcasting body, both sides of bottom plate all are fixedly connected with shell, the one side of two shell bottom is equipped with two strip grooves, the top of two shell inner wall is inserted with the plug -in block, two plug -in blocks are fixedly connected respectively in the both sides of public broadcasting body bottom, the inner wall of plug -in block is equipped with the slot, both sides of shell inner wall bottom all are connected with the clamping piece of sliding, the middle part of shell inner wall bottom is fixedly connected with fixed block, both sides of fixed block all are fixedly connected with spring no.

An audio system, device, and method for broadcasting, discovering, and receiving wireless audio data connections. The exemplary systems and methods described herein utilize an Isochronous Broadcast Stream topology to unilaterally broadcast a wireless audio data stream from a first audio device to a plurality of second audio devices. The audio devices described are configured to receive audio content according to a first wireless protocol, generate a Bluetooth Low Energy (LE) broadcast stream based on the audio content, and broadcast the Bluetooth LE broadcast stream to a plurality of second audio devices.