45 results about "Public broadcasting" patented technology

The present application relates to the technical field of public broadcasting and electroacoustic engineering, and discloses a loudspeaker voice coil low-temperature control method and system. Through the design of multiplexing voice coil and superimposed small direct current detection method, the loudspeaker voice coil is simultaneously used as a temperature sensor and a heating element. The temperature of the loudspeaker voice coil can be detected on-line, continuously and accurately through the small direct current detection method. The present application performs intelligent decision-making with strict priority based on temperature state and audio state. The closed-loop temperature control is started only during the standby period of public broadcasting non-broadcasting and when heating is explicitly required. Through the composite control architecture of feedforward pre-arrangement as the main part and feedback fine adjustment as the auxiliary part, the loudspeaker voice coil is smoothly and accurately heated to a safe temperature. Thus, while eliminating feedback lag, the inherent contradiction between the heating speed and temperature overshoot is effectively decoupled, the unification of rapid heating and accurate temperature control is realized, and the loudspeaker is ensured to be in a working state at any time.

The invention relates to the technical field of wireless communication, and particularly discloses a zero-handshake transient connection establishment method and system based on an Auracast protocol, and the method comprises the steps: generating a composite signal containing a user space position vector and a one-time authorization token, generating a motion feature tag based on the position change, and activating directional scanning only when an approaching or staying intention is detected; a connection environment quality report is generated through multi-channel detection, and the channel congestion degree, the transmission delay and the signal strength are dynamically evaluated; meanwhile, according to the environment quality, a customized connection scheme is generated, an optimal channel and transmission parameters are automatically selected, and after an audio stream receiving service is established, through continuous monitoring of user position changes, instant disconnection is triggered when a departure intention is detected, and full-process automatic connection life cycle management is formed. The problem that the connection process in the public broadcast audio service field is lack of intelligence is effectively solved, automation of connection initiation is realized, and the connection efficiency and the user experience are remarkably improved.

The application provides a service demand-based beam position level skip beam pattern design method, device and equipment, and belongs to the technical field of wireless communication. The method comprises the following steps: the skip beam pattern is used for indicating the beam scanning sequence of the beam position in the non-ground network coverage range, the beam scanning sequence of each beam position is configured according to the priority of each beam position, and the priority is associated with the service traffic of each beam position, the number of ground base stations associated with each beam position and / or the number of users of each beam position; and / or the skip beam pattern is used for indicating the information broadcast timing in the public broadcast information, the first system information block (SIB) is included in the public broadcast information, the service cell basic information and the satellite auxiliary information are included in the first SIB, and the first SIB is periodically broadcast. The service scheduling efficiency can be improved.

1. The name of the design product: network linear active sound column. 2. The use of the design product: for public broadcasting sound amplification system. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

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.

This invention belongs to the technical field of audio processing and relates to a multi-channel speaker system and method based on Bluetooth Auracast and spatial awareness. It includes the following modules: an audio broadcast source transmission module for transmitting a public broadcast audio stream; a public broadcast stream synchronization locking module for generating a unified physical layer time reference; an ordered acoustic detection signal transmission module for forming an acoustic detection signal sequence; a raw sound wave arrival time difference generation module for generating the raw sound wave arrival time difference; a global measurement dataset construction module for summarizing the global measurement dataset of measurement results; a topology weight analysis and calculation module for generating topology weight values; a channel role election locking module for generating channel playback instructions; and a multi-channel synchronous playback execution module for extracting channel data and performing synchronized playback. This invention solves the problem that when a user moves the speaker position or adds a new speaker device during playback, a complete recalibration process needs to be performed.

1. The name of the design product: intelligent broadcast server host (MTX1-ES). 2. The use of the design product: used for providing resource storage, audio signal distribution, partition control, responsible for program library management, task management, terminal management, recording management, user management, permission management, various task management schemes and other remote services for public broadcasting system, fire emergency broadcasting. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. The name of the design product: high-pitched horn (inclined type). 2. The use of the design product: It is an acoustic component, mainly to enhance the directivity of sound, improve the sound pressure level (loudness) and optimize the efficiency of sound wave propagation, widely used in professional sound (stage, cinema), public broadcasting, outdoor sound amplification and other scenes. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model discloses a vibration type floor sound box device, which comprises a sound box shell, a vibration loudspeaker and a controller, wherein the vibration loudspeaker and the controller are arranged in the sound box shell. The sound box shell comprises a mounting box and a hard vibration plate mounted at the top of the mounting box, the vibration end of the vibration loudspeaker is connected with the bottom surface of the hard vibration plate, and the controller is connected with the vibration loudspeaker and used for converting a voice signal into a vibration driving signal for driving the vibration loudspeaker to vibrate; therefore, the vibration end of the vibration loudspeaker drives the hard vibration plate to vibrate. The vibration type floor sound box device can be combined with a ground floor tile grid of a public space, the vibration type floor sound box device in the form of a rectangle, a cylinder and the like can be adopted to replace part of floor tiles, and the vibration type floor sound box device in the form of a square can also be adopted to replace the whole floor tile. Therefore, organic combination of the floor sound box and the decoration effect is achieved, and construction of a public broadcasting system is achieved through an array arrangement mode at intervals.

The invention discloses a media broadcast service processing method and device based on a 5G satellite network and a medium, and can be applied to the technical field of 5G communication. According to the method, after the unregistered terminal obtains the public broadcast channel signal through periodically scanning the frequency band, the broadcast group joining request initiated by the unregistered terminal is obtained, and after the validity verification of the temporary group identifier of the unregistered terminal is passed, the group key is issued to the unregistered terminal passing the validity verification through the satellite network, so that the service life of the unregistered terminal is prolonged. Generating real-time bandwidth allocation information according to the real-time channel feedback information and the real-time network condition information, generating an encrypted broadcast media stream according to the current service demand, and issuing the encrypted broadcast media stream to an unregistered terminal corresponding to the region identifier according to the real-time bandwidth allocation information. And the unregistered terminal decrypts the encrypted broadcast media stream according to the group key to obtain the target broadcast information, so that the unregistered terminal can effectively and timely obtain the broadcast content, and the user experience is effectively improved.

A repeater device having a donor radio antenna that captures publicly broadcast synchronization signals from an outdoor 5G Radio Access Network (RAN) node, and a controller that decodes the captured publicly broadcast synchronization signals from the outdoor 5G RAN node. The controller synchronizes with the decoded publicly broadcast synchronization signals, to align a frame structure of the donor radio antenna to a frame structure of the outdoor 5G RAN node, independent of additional signaling and explicit coordination from the outdoor 5G RAN node. The repeater device includes a relay radio antenna that communicates the synchronized publicly broadcast synchronization signals to a first set of indoor relay devices. The controller executes frequency or spatial isolation, to reduce interference between user equipment (UEs) of one or more indoor UEs associated with the outdoor 5G RAN node, independent of the explicit coordination from the outdoor 5G RAN node.

The invention relates to a public broadcasting method and system. The method is applied to a remote control forwarding terminal of the public broadcasting system, the public broadcasting system further comprises at least one remote controller, playing equipment and a broadcasting server, the playing equipment and the broadcasting server are connected through a network, and the remote control forwarding terminal is in communication connection with the server through an intranet. The method comprises the following steps: receiving a remote control signal sent by a remote controller completing frequency matching; and generating and sending a key signal corresponding to the remote control signal to a broadcast server, so that the broadcast server compares the key signal with a pre-stored instruction, and drives a playing device to play broadcast information corresponding to the key signal. According to the invention, public broadcasting can be rapidly realized, the inherent defect that the infrared remote control technology is limited by short operating distance can be broken through, and the method is especially suitable for scenes needing wide area coverage, such as large stadiums and campuses, so that the timely response speed of public broadcasting in large-scale places can be improved.

This invention provides a sound amplification evaluation system, evaluation information input device, evaluation information display device, evaluation information analysis device, and sound amplification evaluation method that can understand the listening conditions of various listeners of amplified sound regardless of scale, and that can easily evaluate amplified sound. [Solution] The loudspeaker sound evaluation system of the embodiment has an evaluation information input device 100 and an evaluation information display device 200 that are connected in a manner that enables information communication. The evaluation information input device 100 has a participant information input unit 103 that inputs information of participants P who participate in the evaluation of loudspeaker sound from loudspeaker L, and an evaluation input unit 104 in which participants P who have listened to the loudspeaker sound input evaluation information indicating the level of a preset index regarding their own listening condition. The evaluation information display device 200 has an evaluation display unit 205 that selectively displays evaluation information corresponding to loudspeaker L according to the participant information of a plurality of participants P.

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 utility model discloses a multimedia playing device and a public broadcasting system, the device comprises a core board and a main board, the core board comprises a microprocessor unit, an audio coding and decoding unit, a switch chip, a network interface, an HDMI interface and a TF card seat; the microprocessor unit is connected with the network interface through the switch chip, and the microprocessor unit is also connected with the audio coding and decoding unit, the TF card seat and the HDMI interface; the mainboard comprises a USB interface, a loudspeaker interface, a microphone interface, an AUX IN interface and an AUX OUT interface. The USB interface is used for being externally connected with a USB flash disk, the loudspeaker interface is used for being externally connected with a loudspeaker, the microphone interface is used for being externally connected with a microphone, the AUX IN interface is used for being connected with external sound source equipment, and the AUX OUT interface is used for being connected with external sound amplification equipment. The multimedia playing equipment provided by the utility model can meet individual requirements of different users. The method can be widely applied to the technical field of playing equipment.

This utility model relates to the field of pole attachment devices, and more particularly to a pole attachment device for automatically adjusting the direction of a speaker column installation. It includes an annular clamp, a connecting shaft, a speaker column mounting frame, and a drive unit. The annular clamp is a ring-shaped structure fitted onto the pole. The speaker column mounting frame is mounted on the speaker column. One end of the connecting shaft is movably connected to the annular clamp via the drive unit, and the other end is fixedly connected to the speaker column mounting frame. This utility model is particularly suitable for public address systems requiring dynamic adjustment of sound field coverage, as well as flood control and flood warning systems and smart construction site management scenarios. It provides a remotely controllable, automatically adjustable speaker column installation device to improve installation flexibility and management efficiency. It features structural stability, precise orientation, remote control, and strong compatibility. This utility model solves the technical problems of existing fixed speaker columns that cannot be dynamically adjusted after installation, resulting in low efficiency and poor safety of manual adjustment.

We provide the system. [Solution] A data processing means that receives video information from a monitoring system and analyzes the video information to detect abnormal behavior, Information generation means that generates a warning message based on abnormal behavior detected by the data processing means, A signal output means for outputting the warning message, Information communication means for notifying a management information terminal of the results of detecting the abnormal behavior, A sound generation means that generates an audio signal using the warning message and outputs it to a public address system in real time, A system that includes this.

1. Name of the product in this design: IP microphone. 2. Application of this design: The IP microphone is a multi-mode broadcast control device for intelligent emergency broadcasting systems, used in scenarios such as public broadcasting, security communication, enterprise collaboration, and specific industry dispatching. 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 application provides a kind of loudspeaker online monitoring system and public broadcast system, the system includes: host computer, detection control device, power amplifier, and the detection terminal of matching setting with loudspeaker;The first end of detection control device is connected with the input end of power amplifier;The second end of detection control device and the output end of power amplifier are connected with the input end of each detection terminal;Detection control device is used to mix audio signal with ultrasonic signal, and sends mixed signal to power amplifier;Power amplifier is used to amplify the mixed signal received, and sends mixed amplified signal to each detection terminal;Detection terminal is used to sample power amplifier circuit and loudspeaker loop, when power amplifier circuit sampling voltage and loudspeaker loop sampling current include ultrasonic data and ultrasonic data is within the preset voltage range, it is determined that power amplifier circuit and loudspeaker loop work normally;The application can realize one-to-one detection of loudspeaker while improving the detection accuracy of loudspeaker working state.

1. Name of the designed product: Household sound (resound through the clouds). 2. Use of the designed product: The designed product is used for home theater, music playing, public broadcasting, conference system, etc. 3. Design points of the designed product: Combination of shape and pattern. 4. Picture or photo that best indicates the design points: perspective view.

According to an embodiment of the present disclosure, an electronic device (101, 102, 104, or 200) comprises: communication circuitry (190, 302, or 420); one or more processors (120, 304, and 410) including processing circuitry; and a memory (130, 306, or 490) for storing instructions. The instructions, when executed individually or collectively by the one or more processors, cause the electronic device to: receive a periodic advertising (PA) packet from an external electronic device (210) by using the communication circuitry; perform, using the communication circuitry, a synchronization operation for a common broadcast isochronous stream (BIS) channel broadcast by the external electronic device, on the basis of broadcast isochronous group (BIG)-related information included in the PA packet; receive, using the communication circuitry, a first number of audio packets and a second number of PA packets from the external electronic device through the common BIS channel during a configured period; obtain a broadcast code applied to a BIS channel other than the common BIS channel, on the basis of the first number of audio packets or the second number of PA packets; perform, using the communication circuitry, a synchronization operation for the other BIS channel broadcast by the external electronic device, on the basis of BIG-related information included in at least one of the second number of PA packets; receive audio packets through the other BIS channel by using the communication circuitry; obtain audio data by decoding, using the broadcast code, the audio packets received through the other BIS channel; and provide the obtained audio data. Other embodiments may be possible.

1. The name of the design product: public broadcast power amplifier (ES-DA60W). 2. The use of the design product: public broadcast and background music play for public occasions. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

A hybrid in-person and remote audiovisual conference broadcasting system provides a centrally controlled system for managing and broadcasting the audiovisual data collected from mobile devices both in humanly perceptible proximity of an in-person public-address system and beyond humanly perceptible proximity to the in-person public-address system. In an exemplary embodiment, a moderator controls requests from various participant members to broadcast audio or video from their personal mobile device to the other group members. Some members may be in proximity to an in-person public address system where they may for example be able to hear amplified audio and see live projected or otherwise presented video. In this exemplary embodiment, remote users not in proximity to the in-person public address system may also participate by for example listening to and viewing the broadcast audiovisual data on their personal mobile devices. Both in-person / local users and remote users may request to be selected for broadcasting to all users.

This utility model relates to the field of public address technology, specifically to an ultra-thin digital flat panel loudspeaker device for optical network visual linkage broadcasting. It includes an optical network interface, a frame assembly, a surface sound source system, a signal processing module, a visual recognition component, and a cluster collaboration component. The frame assembly includes a surrounding frame integrating the optical network interface, a metal base plate, an insulating base plate, and sound-permeable metal mesh panels on both the front and back. By relying on the ring network cascading function of the network switch module to form serial broadcast terminal nodes, and combining this with the volume differentiation control of the digital power amplifier module to form directional guidance, it effectively improves the efficiency of emergency broadcasting and evacuation during disasters. Furthermore, by relying on optical cables to construct a ring network dual-link redundant network architecture, it forms a fully optical network broadcasting system, solving the problem of low connection reliability that easily occurs when traditional network cables are connected to loudspeakers, and avoiding the technical drawbacks of traditional network cables such as network interruptions caused by electromagnetic interference and high data transmission error rates, ensuring stable transmission of broadcast signals in complex environments.

An approach is provided for augmenting a broadcast stream while maintaining individual privacy. Transient user profiles of opted-in users within a proximity of a common broadcast device broadcasting a broadcast stream are collected. The transient user profiles are fed into a trained artificial intelligence model in communication with the one or more processors that outputs a recommended content tailored to a group of the opted-in users currently present in the proximity of the common broadcast device. The broadcast stream of the common broadcast device is augmented with the recommended content in response to the trained artificial intelligence model detecting a change to the group.

The application relates to the fields of intelligent traffic and public broadcasting, and specifically discloses a standardized volume control strategy generation method and system, which comprises the following steps: obtaining three-dimensional space constraint information and safety early warning event information of a target sound column; calculating space compliance sound power based on the information, and generating a fusion reference acoustic target by combining early warning scenes and point information; mapping the target into a differentiated gain parameter set of a sound column capable of forming a directional sound field; finally, dynamically weighting the parameter set based on the event emergency level and time period identifier, generating and issuing a space-time event joint optimization strategy; the system comprises four functionally corresponding modules. Through intelligent fusion of digital map environment analysis, physical sound field modeling and multi-source business rules, the application realizes the leap of volume control from simple gain adjustment to three-dimensional sound field adaptation and space-time dynamic optimization, effectively solving the core problems of accurate coverage, noise disturbance and automatic execution of standardized standards.

The present invention discloses a method, device and storage medium for main-standby switching of a public broadcast power amplifier. The method is applied to a control module of the main-standby switching device of the public broadcast power amplifier. The main-standby switching device of the public broadcast power amplifier also includes: a plurality of main power amplifier modules and a backup power amplifier module; the backup power amplifier module is connected to the main power amplifier module with the highest priority, and the main power amplifier modules are connected in order from high to low priority; the method includes: when any main power amplifier module fails, the connection between the main power amplifier module and the main power amplifier module with lower priority is cut off, and the broadcast loudspeaker of the main power amplifier module is connected to the backup power amplifier module through the main power amplifier module with higher priority, so as to realize main-standby switching according to the priority of the main power amplifier module in the case of single-chip main control setting or power supply damage, so that the broadcast loudspeaker of the main power amplifier module with the highest priority is connected to the backup power amplifier, thereby improving the main-standby switching efficiency of the power amplifier.

The application relates to the technical field of wireless communication, and particularly discloses a zero-handshake transient connection method and system based on an Auracast protocol, which comprises generating a composite signal containing a user space position vector and a one-time authorization token, generating a motion characteristic label based on position changes, activating directional scanning only when approaching or staying intention is detected, generating a connection environment quality report through multi-channel detection, dynamically evaluating channel congestion, transmission delay and signal strength, generating a customized connection scheme according to the environment quality, automatically selecting the optimal channel and transmission parameters, and after an audio stream receiving service is established, continuously monitoring the user position changes, triggering transient disconnection when leaving intention is detected, and forming a full-process automated connection life cycle management. The application effectively solves the problem of lack of intelligentization in the connection process in the field of public broadcast audio services, realizes the automation of connection initiation, and significantly improves the connection efficiency and user experience.

The present disclosure relates to a method and an apparatus therefor, the method comprising the steps of: receiving a synchronization signal / public broadcast channel (SS / PBCH) block within a plurality of SS / PBCH block candidates located on an unlicensed band; obtaining physical downlink control channel (PDCCH) configuration information for receiving system information on the basis of the SS / PBCH block; receiving a PDCCH for scheduling a physical downlink shared channel (PDSCH) including system information on the basis of the PDCCH configuration information; and receiving the PDSCH scheduled by the PDCCH, wherein the PDCCH configuration information includes information on a subcarrier interval of a control resource set (CORESET) through which the PDCCH is transmitted, the CORESET is configured in a period of symbols consecutively located in front of a plurality of SS / PBCH block candidates, and the start symbol of CORESET is determined from between 1) the first symbol of slots included in the period of symbols, or 2) the first symbol of regions in which the period of symbols is divided by the number of SS / PBCH block candidates.

The utility model discloses a broadcast telephone device and system, and the device comprises a housing, a key matrix, a receiver handle, a control module, a trigger module, a magnetic attraction switch module, an electrical isolation module, a sound collection module, and an audio module. The control module, the trigger module, the electrical isolation module and the POE network module are arranged in the shell; the surface of the shell is provided with a key matrix, a magnetic attraction switch module and a receiver handle; the electrical isolation module is connected to the control module, a first end of the electrical isolation module is connected to the key matrix, a second end of the electrical isolation module is connected to a first end of the sound acquisition module, and a second end of the sound acquisition module is connected to the receiver handle; and the trigger module, the magnetic switch module and the audio module are respectively connected to the control module. The equipment can effectively improve the anti-knock performance and the scene environment application range of public broadcast telephone equipment. The utility model relates to the technical field of public broadcasting.