109results about "Broadcast circuit arrangements" patented technology

The utility model discloses Bluetooth and frequency modulation broadcast switching equipment, which is characterized by comprising a Bluetooth transceiving module, a frequency modulation broadcast transceiving module and an audio interface, the Bluetooth transceiver module comprises a microprocessor, and the microprocessor is used for controlling to start a corresponding working mode according to the Bluetooth signal quality information, and controlling to start a first working mode when the Bluetooth signal quality information meets a preset Bluetooth signal quality value, and controlling to start a second working mode when the Bluetooth signal quality information meets the preset Bluetooth signal quality value. The first working mode is a corresponding working mode for starting the Bluetooth transceiver module; when the Bluetooth signal quality information does not meet the preset Bluetooth signal quality value, a second working mode is controlled to be started, and the second working mode is a working mode corresponding to the frequency modulation broadcast receiving and transmitting module, so that the whole equipment can freely switch Bluetooth broadcast and frequency modulation broadcast, stable communication of the equipment is ensured, and the user experience is improved. The communication effect is improved.

According to the LDSW emergency broadcast communication system and the working method provided by the invention, by virtue of the characteristics of wide coverage of high-power wireless broadcast signals and long propagation of low-rate wireless digital signals, broadcast receiving equipment of various sizes in a dormant state is awakened by utilizing an ultra-low power consumption and ultra-long distance sleep awakening function of an LDSW technology in an emergency. Comprising a movable pocket radio and an LDSW interphone, or a fixedly-mounted small household loudspeaker and a centralized broadcast large loudspeaker, so that the mobile pocket radio and the LDSW interphone can immediately enter a state of receiving and broadcasting an emergency alarm signal when needed. Therefore, in a low-cost and feasible mode, the majority of common people can receive the alarm information in time when an emergency occurs. A worker with the LDSW interphone can transmit local disaster situations and disaster relief dispatching command commands to the general public in a voice or text information mode through the local large and small loudspeakers, the LDSW interphone and the base station, and transmit the local disaster situations and disaster relief dispatching command commands to a remote command center through the fixed or movable LDSW satellite base station.

The embodiment of the invention discloses an equipment control method and device, electronic equipment and a computer readable storage medium, and the method comprises the steps: determining first interaction feature information corresponding to equipment interaction information if the equipment interaction information is detected; first interaction feature information is broadcasted to at least one interaction device in the communication range, second interaction feature information broadcasted by all the interaction devices is received, and all the second interaction feature information is determined by all the interaction devices according to the device interaction information; determining an equipment response result according to the first interaction feature information and each piece of second interaction feature information; controlling the response of the current equipment to the equipment interaction information according to the equipment response result; wherein at least one device in the current device and each interaction device is a non-network-distribution device. The screening of response equipment in a multi-equipment scene is realized, and the interaction experience is improved.

To provide a content transmitting device and a transmitting method for making a character content available without causing garbling of characters.SOLUTION: A content transmitting device according to one embodiment is configured to: input first encoded content data, which is obtained by encoding content data including at least character data obtained by processing a broadcast signal broadcasted by an MPEG2 transport stream method, and first content accompanying information; output the first encoded content data and the first content accompanying information as second encoded content data obtained by encoding the content data, and second content accompanying information; analyze the second content accompanying information and extract information on a character encoding method used in the second encoded content data; and transmit the second encoded content data and the character encoding method information to an outside by a method compliant with the DLNA(R) standard.SELECTED DRAWING: Figure 3

The invention provides a double-slope linear frequency modulation continuous wave altimeter with a one-way broadcast communication function. The altimeter comprises a microprocessor, a transmitting assembly and a receiving assembly. The microprocessor controls the two microwave modules to respectively generate linear frequency modulation continuous waves at two different slopes, and the linear frequency modulation continuous waves are combined and then emitted; and after the altimeter receives a ground echo signal, multiplying a transmitting signal by the echo signal to obtain a beat signal, analyzing a frequency spectrum of the beat signal, searching two frequency spectrum targets according to two frequency spectrum peak values, calculating two height measurement values by combining the frequency and the slope, and performing data processing to obtain an output height value. A ground receiver obtains a ground beat signal according to a local signal and a received signal, analyzes the frequency spectrum of the ground beat signal to find two frequency spectrum targets, and judges the amplitudes of the two frequency spectrum targets to analyze binary data modulated by an altimeter. According to the invention, the reliability and the anti-interference capability of the altimeter are improved, and a low-cost broadcast communication function is realized.

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.

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.

A method for audio clock adjustment in a network-based public address (PA) is disclosed. The disclosed method comprises the steps of: generating an audio clock signal on the basis of the occupancy level of an audio buffer in which digital audio data received through a network is buffered; and providing the digital audio data from the audio buffer according to the generated audio clock signal, wherein the step of generating the audio clock signal includes the steps of: generating a first audio clock signal as an audio clock signal from an oscillating clock signal if the occupancy level indicates that a first amount of digital audio data remains in the audio buffer; and setting a clock divisor on the basis of the occupancy level if the occupancy level indicates that a second amount differing from the first amount of the digital audio data remains in the audio buffer, and generating a second audio clock signal as the audio clock signal from a finite state machine (FSM) clock signal.

The utility model relates to the technical field of broadcast television equipment, and discloses an adjusting device for a broadcast signal transmitter, which comprises a fixed box, a movable cavity is arranged in the fixed box, one side of the outer wall of the fixed box is fixedly connected with a mounting box, and the inner wall of the mounting box is fixedly connected with a motor I; the output end of the first motor is fixedly connected with a transmission shaft, the transmission shaft is rotationally connected to the inner wall of the movable cavity, the outer wall of the transmission shaft is fixedly connected with a worm, the inner wall of the fixed box is rotationally connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a worm gear, and the upper surface of the worm gear is fixedly connected with a rotating block. According to the utility model, a motor I is started to drive a worm and a worm gear to be engaged, so that a rotating block above a rotating shaft rotates, and a signal transmitting machine above a fixed plate rotates at multiple angles, and then an electric push rod is started to drive a hinge block, so that a supporting rod drives the signal transmitting machine to further adjust the angle; and the practicability of the device is improved.

A device control method and apparatus, an electronic device, and a computer-readable storage medium. The method comprises: if device interaction information is detected, determining first interaction feature information corresponding to the device interaction information (101); broadcasting the first interaction feature information to at least one interaction device within a communication range, and receiving second interaction feature information broadcast by each interaction device, wherein each piece of second interaction feature information is determined by each interaction device on the basis of the device interaction information, and at least one device among a current device and the interaction devices is an unprovisioned device (102); determining a device response result on the basis of the first interaction feature information and each piece of second interaction feature information (103); and controlling response of the current device to the device interaction information on the basis of the device response result (104). In this way, screening of response devices in a multi-device scenario is implemented, and the interaction experience 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.

A satellite constellation communication system comprising: a first layer of satellites placed in very low Earth orbit (VLEO), a second layer of satellites placed in medium Earth orbit (MEO), one or more ground stations designed (i) to receive information streams from one or more satellites of the first or second layer originating from a user terminal or (ii) to transmit information streams via one or more satellites of the first or second layer to a user terminal, and a traffic management center for said system, arranged to route said information streams primarily via one or more satellites of the first layer (VLEO), and, in the absence of a communication link with the first layer (VLEO), to reroute said information streams via one or more satellites of the second layer (MEO). See Figure 1

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 provide a content transmission device and a transmission method that enable use of a character content without garbling.SOLUTION: A content transmission device according to one embodiment inputs first encoded content data and first content associated information obtained by encoding content data including at least character data obtained by processing a broadcast signal broadcasted using an MPEG2 transport stream method, outputs the first encoded content data and the first content associated information as second encoded content data and second content associated information obtained by encoding the content data, analyzes the second content associated information to extract information on the character encoding method used in the second encoded content data, and transmits the second encoded content data and the information on the character encoding method to the outside.SELECTED DRAWING: Figure 3

The utility model provides broadcasting equipment with a remote control function, which relates to the technical field of broadcasting equipment and comprises a mounting rack, a broadcaster body is mounted on one side of the mounting rack, a group of connecting plates are mounted on two sides of the broadcaster body, mounting components are arranged at joints of the connecting plates and the mounting rack, and the mounting components are mounted on the mounting rack. According to the device, the broadcaster can be rapidly disassembled and assembled, workers do not need to carry corresponding tools to disassemble the broadcaster, the problems that time is consumed during maintenance, and the danger coefficient is high are solved, meanwhile, a protection plate can block rainwater, dust and other impurities, and the maintenance efficiency is improved. And the problems that impurities easily enter the equipment in rainy days, so that internal elements are eroded, and the service life of the equipment is shortened are solved.

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.

The communication method according to the present invention is developed for reducing energy consumption of the IoT terminals. The method comprises the process steps of recording and updating the orbital data of the satellite, periodically broadcasting a Beacon signal, determining the coverage area of the next Beacon signal, determining the next passage times of the satellite over the coverage area, determining the next passage of the satellite over the coverage area with an elevation angle above the threshold elevation angle value, transmitting a Beacon signal containing the detected passage data performed by the satellite and the process steps of receiving the Beacon signal, planning transitions between a low-power sleep mode and an awake mode using the passage data performed by the IoT terminals.

The utility model discloses a tunnel emergency frequency modulation broadcasting device, which comprises a tunnel frequency modulation broadcasting installation assembly, and the tunnel frequency modulation broadcasting installation assembly comprises a broadcasting installation frame, a circular installation hole formed in the surface of the broadcasting installation frame, and a broadcasting loudspeaker clamped into the circular installation hole. The sealing assembly comprises an annular frame arranged on the side face of the broadcast installation frame, an annular opening formed in the middle of the annular frame, an annular piece fixed to the outer side wall of the annular frame and a threaded frame fixed to the outer side of the circular installation hole. According to the utility model, through mutual cooperation of the tunnel frequency modulation broadcast installation assembly and the sealing assembly, during use, a broadcast loudspeaker can be limited and locked through simple single rotation, and a three-layer sealing structure and a multiple sealing structure are formed at the same time, so that moisture is prevented from entering, emergency frequency modulation broadcast faults are prevented, and the service life of the broadcast loudspeaker is prolonged. Therefore, the use cost is reduced, the disassembly difficulty of the multiple closed structures is reduced, and regular maintenance is facilitated.

The utility model discloses a circuit used for frequency modulation broadcast newly-added service, and relates to the technical field of broadcast communication. The circuit comprises an interface module, a first FPGA module, a first ADC module, a second FPGA module and a signal output module. The interface module is used for acquiring new business data; the first FPGA is used for performing channel coding modulation processing on the new service data according to the channel characteristics of the new service data to obtain new service modulation data; the first ADC module is used for acquiring an original radio frequency signal and performing analog-to-digital conversion processing to obtain an original radio frequency digital signal; the second FPGA module is used for adding the new service modulation data to one side or two sides of a frequency modulation signal channel corresponding to the original radio frequency digital signal to obtain a first combined signal; and the signal output module is used for converting the first combined signal into a first radio frequency emission signal and outputting the first radio frequency emission signal. According to the utility model, the utilization efficiency of frequency resources can be improved, the demand for newly added frequency resources is reduced, and the problem of frequency resource shortage is relieved.

The invention provides an underground audio broadcasting device and method. The underground audio broadcasting device comprises a plurality of voice slave stations which are connected in series through a current loop; each voice slave station comprises a left port for receiving a first audio current signal input by an upstream voice slave station and sending the first audio current signal to a left audio receiving module; the left audio receiving module is used for converting the first audio current signal into a first audio voltage signal and respectively sending the first audio voltage signal to the right audio sending module and the sound amplification circuit module; the right side audio sending module converts the received first audio voltage signal into a first audio current signal and sends the first audio current signal to a right side port; the right side port is used for sending the first audio current signal to a downstream voice slave station; the sound amplification circuit module outputs the received first audio voltage signal to the loudspeaker; the design of the current loop significantly improves the anti-interference capability of the system, thereby ensuring the stable transmission of audio signals.

The invention discloses a communication device for terminal emergency broadcast, and relates to the technical field of communication, the scheme comprises a digital mainboard module, a configuration interface, an antenna interface and a communication interface, the digital mainboard module is connected with the communication interface, the configuration interface and the antenna interface; the configuration interface is used for receiving an emergency broadcast configuration message and transmitting the message to the digital mainboard module; the communication interface is used for receiving external access data and sending the external access data to the digital mainboard module; the digital mainboard module is used for processing the emergency broadcast configuration message, generating an emergency broadcast signal based on external access data and sending the emergency broadcast signal to the antenna interface; and the antenna interface is used for sending the emergency broadcast signal to a terminal. The method does not need to depend on existing network element upgrading of an operator, service broadcast time delay is reduced, rapid deployment in an emergency scene can be achieved, a large amount of manpower and material resources do not need to be consumed, and the requirement of the emergency scene is met.

The utility model relates to the technical field of omni-directional broadcast, in particular to an omni-directional broadcast, which comprises a bottom plate, the upper side of the bottom plate is fixedly connected with a fixed round seat, the upper side of the fixed round seat is clamped with an embedded block, the lower side of the embedded block is connected with insertion rods in an array manner, the lower side of the embedded block is provided with a clamping block, and the upper side of the embedded block is fixedly provided with an omni-directional broadcast main body. According to the omni-directional broadcast mounting and dismounting device, the omni-directional broadcast can be conveniently and rapidly mounted or dismounted through clamping connection of the insertion rod, the clamping block and the fixed baffle, then the clamping arc plate with elasticity can further clamp the omni-directional broadcast at the embedded block, a screwdriver does not need to be used in cooperation, and therefore the working efficiency during mounting and dismounting of the omni-directional broadcast is improved; the distance between the two L-shaped mounting plates can be flexibly adjusted to adapt to different mounting positions, so that the omni-directional broadcast on the bottom plate is fixed, then the extending frame and the protective shell at the top seat protect the omni-directional broadcast together, and the safety of the omni-directional broadcast is improved.

The utility model provides a voice broadcast system. The voice broadcast system comprises a transmitting terminal and a plurality of receiving terminals, the transmitting end comprises an antenna, a frequency band dial switch, an audio interface, a first power interface, a plurality of denoising modules and a modulation module; the frequency band dial switch is used for selecting a target frequency band of the initial audio signal, and the target frequency band is 655 MHz to 690 MHz; the de-noising module is used for filtering the initial power supply signal and is also used for de-noising the initial audio signal to obtain a first audio signal; the modulation module is used for converting the first audio signal into a wireless signal; the antenna is used for sending the wireless signal to a receiving end; a receiving control panel and a loudspeaker are arranged in each receiving end, and the receiving control panel is used for receiving and demodulating the wireless signal to obtain a second audio signal; and the loudspeaker is used for playing the second audio signal. According to the technology, noise can be reduced, the audio quality is improved, and the phenomenon of channel crossing under multiple channels is avoided.

The utility model discloses a medium wave transmission system. The system includes a main transmitter, a first backup transmitter, a second backup transmitter, a first coaxial switch, a first controller, a second coaxial switch, a second controller, a first load, a second load, an antenna feed network and an antenna; wherein the main transmitter is connected to the first coaxial switch, the first backup transmitter and the first load are connected to the first coaxial switch; the second backup transmitter and the second load are connected to the second coaxial switch; the first coaxial switch and the second coaxial switch are connected; the second coaxial switch is connected to the antenna feed network, and the antenna feed network is connected to the antenna; the first coaxial switch is connected to the first controller, and the second coaxial switch is connected to the second controller. Through the above technical solution, in the case of failure of the main transmitter and the first backup transmitter, the second backup transmitter can be enabled to shorten the off-air time and ensure the stability of safe broadcasting.

The invention discloses a self-starter for a frequency modulation broadcasting standby transmitter and a control method of the self-starter. The self-starter comprises a frequency modulation signal receiving module, an acousto-optic conversion module, a light-operated module, a delay processor and an alternating current contactor; the frequency modulation signal receiving module receives a main transmitter signal through an antenna, the main transmitter signal is converted into an optical signal through the acousto-optic conversion module, the delay processor is triggered after the optical signal is detected by the optical control module, and the alternating current contactor is driven to be connected with a standby transmitter power supply after delay control. The control method comprises the steps of signal receiving and processing, photoelectric conversion, delay judgment and power supply starting, full-automatic and quick starting of the standby transmitter when the signal of the main transmitter is interrupted is achieved, and manual testing, starting, stopping and adjusting can be achieved. The method has the characteristics of quick response, strong anti-interference and flexible operation, and can obviously shorten the broadcast stop time and improve the system reliability.

The utility model discloses a broadcast prompt system which comprises a broadcast console, a networked power amplifier module, a broadcast loudspeaker and a wearable intelligent device. The broadcast console is used for sending audio signals, the network audio decoding module with the MCU chip generates superaudio signals when receiving the audio signals, the superaudio signals and the audio signals are mixed and output to the post-stage power amplifier module, and the post-stage power amplifier module amplifies the received signals and then sends the signals to the broadcast loudspeaker for playing. The pickup microphone of the wearable intelligent device carries out pickup on environmental audio, and when superaudio signals are detected to exist in the environment, the controller controls the vibration module to vibrate, so that broadcast alarm prompt is carried out on personnel in a tactile mode, dependence on the vision of the personnel is not needed, and the working efficiency is improved. The defect that the mode of receiving the alarm prompt depending on vision is limited by the installation position of the indicator lamp is avoided, and the technical problem that broadcast alarm prompt equipment adopted in an existing broadcast system is not high in reliability is solved.

Method and system for conveying a plurality of component signals transmitted from a multi-waveform transmitter to a ground hub having or coupled to an equal plurality of receivers as a combined signal in a common frequency band. For each of the component signals respective adjusted signals are generated by adjusting at least one inherent characteristic of the respective component signals based on waveform-specific constraints so as to allow discrimination of the adjusted signals by a respective one of the receivers based solely on the at least one inherent characteristic without requiring additional signal information and without requiring encoding of the component signals by the transmitter. The adjusted signals are combined in a common frequency band to form a combined signal. and transmitted to the ground hub.

The utility model discloses a main transmitting station, a broadcast-on-behalf transmitting station and an automatic broadcast-on-behalf frequency modulation transmitting system. The main transmitting station at least comprises at least one main station transmitter used for receiving a corresponding frequency information source; the power detection module is connected with at least one master station transmitter and is used for acquiring level signals of all master station transmitters and sending the level signals corresponding to all master station transmitters to the audio switching module; and the audio switching module is connected with the power detection module, and is used for receiving information sources with different frequencies, selecting the information source with the corresponding frequency through each level signal when the level signal indicates that the main station transmitter has a fault, and sending the information source with the corresponding frequency to a broadcasting transmitting station. The main transmitting station obtains the level signal of the main station transmitter through the power detection module, and the audio switching module selects the information source of the corresponding frequency according to the level signal, so that the information source can be automatically sent to the substitute broadcasting transmitting station when the main station transmitter fails, and the substitute broadcasting transmitting station performs substitute broadcasting.

The utility model provides a multi-angle broadcasting device, which relates to the broadcasting equipment field, and comprises a stand column, a mounting rack and a loudspeaker main body, one side of the outer wall of the stand column is provided with a mounting groove, the stand column is provided with a rotating handle, and two ends of the outer wall of the loudspeaker main body are fixedly connected with fixed shafts. A fixing block is fixedly connected to one side of the outer wall of the mounting frame, a movable rod is movably mounted in the fixing block, the driving motor can drive the movable rod to rotate, at the moment, the loudspeaker body rotates with the fixing shaft as the circle center, and the angle of the loudspeaker body can be conveniently adjusted; the rotating handle is rotated to enable the movable block to move downwards to extrude one end of the sliding rod, the other end of the sliding rod is located in the mounting groove to limit and fix the connecting block, when the rotating handle is rotated reversely to enable the movable block to move back, the sliding rod is reset under the action of the spring, at the moment, one end of the sliding rod is separated from the interior of the connecting block, and the loudspeaker body is convenient to mount and dismount.

The utility model relates to the technical field of radios, and discloses a multifunctional vehicle-mounted radio which comprises a vehicle-mounted radio body, an interface is formed in one side of the front portion of the vehicle-mounted radio body, mounting grooves are formed in the upper end and the lower end of the side, close to the interface, of the vehicle-mounted radio body, and sliding rods are fixedly connected into the mounting grooves. The side, away from the mounting groove, of the sliding rod is slidably connected with a mounting pipe, the side, away from the sliding rod, of the mounting pipe is fixedly and rotatably connected with a mounting frame, a fixing plate is mounted at the lower end of the mounting frame, and the upper end and the lower end of the fixing plate are slidably connected with push plates. Through a fixing plate, a push plate and an elastic sheet which are arranged on one side of the interface, when the interface is not used, the fixing plate, the push plate and the elastic sheet are put into the interface, so that the interface is shielded, dust accumulation caused by direct exposure of the interface in air is avoided, and the interface is kept clean and tidy.