85 results about "Public broadcasting" patented technology

The invention relates to the technical field of public broadcast, and discloses an intelligent public broadcast control method and system, and the system consists of a personnel positioning module, a region division and management module, a dynamic volume adjustment module, an environment adaptability module, an individual and group mode module, and a feedback mechanism module. According to the invention, through Wi-Fi, Bluetooth beacon or camera technology, people flow and personnel distribution in a public area are monitored and analyzed in real time, and the area is divided into a plurality of intelligent sub-areas, so that the system can know the personnel density and distribution condition of each sub-area in detail, and the volume can be dynamically adjusted to meet the requirements of different areas; the area with dense people needs a high volume to ensure that the broadcast can cover all audiences, and the area with rare people reduces the volume to avoid unnecessary noise, so that the beneficial effect of adjusting the volume required by the broadcast according to different subareas of the public area is achieved.

The invention provides a loudspeaker online monitoring system and a public broadcasting system. The system comprises an upper computer, a detection control device, a power amplifier and a detection terminal matched with a loudspeaker, the first end of the detection control device is connected with the input end of the power amplifier; the second end of the detection control device and the output end of the power amplifier are connected with the input end of each detection terminal; the detection control device is used for carrying out frequency mixing on the audio signal and the superaudio signal and sending a frequency mixing signal to the power amplifier; the power amplifier is used for amplifying the received frequency mixing signal and sending the frequency mixing amplified signal to each detection terminal; the detection terminal is used for sampling the power amplifier circuit and the loudspeaker loop, and when the sampling voltage of the power amplifier circuit and the sampling current of the loudspeaker loop comprise superaudio data and the superaudio data are within a preset voltage range, the power amplifier circuit and the loudspeaker loop are judged to work normally; according to the invention, one-to-one detection of the loudspeakers can be realized, and the detection precision of the working states of the loudspeakers can be improved.

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.

To provide a voice amplification system which resolves a difficulty of exerting a warning effect on an intruder such as a thief and a robber by performing such a warning broadcast that only a determined sound source is amplified for the intruder.SOLUTION: A voice amplification system (1) includes: a speaker (11) for amplifying voice toward a security area; intrusion detection means (21) for detecting an intrusion of an intruder into the security area; and voice amplification control means (30) for responding to the detection of the intruder by the intrusion detection means (21) so as to amplify voice messages for the intruder with the speaker (11). The voice amplification control means (30) plurally amplifies the voice messages having a dramatic effect with time.SELECTED DRAWING: Figure 2

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 invention relates to a method for configuring an audio device (12) of a public address system (10), wherein a data connection (18) is established between the audio device (12) and a portable operating device (16) via near-field communication, wherein a user interface (22) of the audio device (12) is transmitted from the audio device (12) to the portable operating device (16) via the data connection (18). Furthermore, the invention relates to an audio device (12) of a public address system (10), a portable operating device (16) for configuring a public address system (10), a computer program, and a machine-readable storage medium.

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.

The invention discloses a method and system for migrating a registered base station based on a digital trunking terminal, and the method comprises the steps: constructing a public broadcast signaling carrying a time slot count CSC through a PDT base station, enabling the time slot count CSC to correspond to a to-be-migrated target PDT terminal address, and enabling the to-be-migrated target PDT terminal address to be migrated when the time slot count CSC corresponding to the to-be-migrated target PDT terminal address is reached based on periodic time slot count. The public broadcast signaling and the migration signaling are issued at the same time, the downlink protocol signaling space is not occupied, and the situation that the PDT terminal cannot receive the signaling due to operation of other services can be avoided through periodic issuing; receiving the public broadcast signaling and the migration signaling through the PDT terminal, comparing the local address with the time slot count CSC in the public broadcast signaling, and migrating the PDT terminal out of the registered PDT base station when the local address is matched with the time slot count CSC in the public broadcast signaling; therefore, the migration signaling is periodically issued based on time slot counting, and meanwhile, a large number of terminals can issue the migration signaling and efficiently migrate out of the base station by using the terminal air interface addresses.

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.

The utility model discloses a public broadcast information acquisition control device, relates to the technical field of public broadcast information acquisition, and aims to solve the problems that a conventional acquisition device is usually placed in an open type, and dust easily enters from the joint of a line and an interface when the acquisition device is connected with the line due to the fact that a large amount of dust exists in the air. The utility model relates to a dust-proof controller, which solves the problem that poor contact of a circuit is easily caused by dust accumulation caused by dust accumulation in the prior art, and comprises a protection box and a controller body, and the controller body is located in the protection box; the controller further comprises an inner bin, the inner bin is arranged in the protection box, the controller body is placed in the inner bin, a plurality of through grooves are formed in the rear end of the protection box and communicate with the inner bin, second wire grooves are integrally formed in the bottoms of the through grooves, and a plurality of sliding rails are arranged on the surface of the rear end of the protection box. The sliding rails are located on the left side and the right side of the through groove.

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.

The utility model discloses a frequency modulation receiving device of a public broadcasting system, which relates to the technical field of media equipment and comprises a tuner body, a heat dissipation mechanism is arranged at the top of the tuner body, a protection mechanism is arranged on the periphery of the tuner body, and a switch mechanism is arranged at one end of the protection mechanism. A plurality of guide rods are symmetrically arranged at the bottom ends of the two sides of the storage box, the same buffer plate is fixedly arranged at one ends of the guide rods located on the same side, first springs are fixedly arranged between the buffer plate and the guide rods, and the guide rods are sleeved with the first springs; according to the utility model, the switch mechanism and the protection mechanism are arranged, so that the switch mechanism and the protection mechanism work to complete protection and storage of the tuner body, and the tuner body is prevented from being damaged when being collided; through the arrangement of the heat dissipation mechanism, the heat dissipation process of the tuner body can be accelerated through the work of the heat dissipation mechanism, heat is prevented from being accumulated in the tuner body to damage the tuner body, and the heat dissipation efficiency is improved.

The present invention discloses a public broadcast management system based on local area network monitoring, specifically relating to the technical field of public broadcast management, including a demand information acquisition module for collecting target public broadcast demand information; a real-time information acquisition module for collecting target spectrum actual usage information; a public broadcast resource analysis module for performing resource analysis; a public broadcast demand analysis module for performing demand degree analysis; a public broadcast priority analysis module for performing priority analysis; a resource comprehensive scheduling module for performing comprehensive consideration and resource scheduling; a public broadcast satisfaction evaluation module for performing satisfaction evaluation; The present invention can better meet the needs of users through the analysis and scheduling of broadcast demands, can effectively optimize public broadcast management, improve resource utilization rate and dissemination quality, realize intelligent management, thereby enhancing user experience and satisfaction.

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.

The utility model discloses communication equipment based on urban rail transit, which belongs to the technical field of urban rail transit communication, and adopts the technical scheme that the communication equipment comprises a support frame, an equipment body is arranged at the top of the support frame, heat dissipation frames are arranged on two sides of the support frame, a support rod is arranged on the rear side of the support frame, and the heat dissipation frames are arranged on the support rod. A limiting mechanism is arranged in the supporting frame. The limiting mechanism comprises two moving columns, two bent frames, a moving plate and a fixing block, and the bottoms of the moving columns are fixedly connected with the tops of the bent frames, so that the problem that public broadcast of communication equipment of urban rail transit needs to be maintained and replaced regularly in the prior art is solved; however, most existing public broadcasts are installed through a supporting rod exposed out of the interior of a train, and when the public broadcasts are disassembled, the supporting rod and the public broadcasts need to be disassembled together, so that the maintenance efficiency of the public broadcasts is reduced.