CN220915432U - Novel EMUs broadcasting system - Google Patents

Abstract

The utility model relates to a novel motor train unit broadcasting system which mainly comprises audio collection equipment, a microphone hanging frame, a heat dissipation air outlet, an equipment switch, a broadcasting state prompting lamp, an open type industrial display screen, a loudspeaker volume knob, a microphone volume knob, a monitoring volume knob, an auxiliary function button, a page adjusting button, a 3.5mm audio output port, a CF card socket, a USB socket, a FLASH card socket, a microphone input port, a shell, a power supply input port, a PIS input socket, a radio input socket and a shell base. Has the advantages of convenient operation, low cost and complete functions.

Description

Novel EMUs broadcasting system

Technical Field

The utility model belongs to the field of acoustic broadcasting, and relates to a novel motor train unit broadcasting system, which enables the motor train unit broadcasting system to meet various functional requirements in the same equipment.

Background

With rapid development of high-speed motor train units, a vehicle-mounted broadcasting system closely related to travel safety and comfort of passengers of motor train units is particularly important, and a multifunctional broadcasting system integrating functions of public broadcasting, personnel intercom, broadcasting volume adjustment and broadcasting monitoring in multiple input modes is needed

When the noise in the passenger room is too large, the sound of the loudspeaker of the motor train unit needs to be automatically adjusted.

When the sound pressure level of a system loudspeaker is too high, a microphone can easily capture the sound of the loudspeaker to generate howling, and the traveling experience of passengers is affected.

Disclosure of utility model

Aiming at the problems, in order to enable the motor train unit to broadcast and overcome the defects, the utility model provides a novel motor train unit broadcasting system, so that the motor train unit broadcasting system meets various functional requirements in the same equipment.

In order to achieve the above purpose, the present utility model can be achieved by the following technical scheme: the audio acquisition equipment is positioned above the side wall of the passenger room of the motor train unit; the broadcasting state prompting lamp and the open type industrial display screen are arranged on the right half side of the front face of the vehicle-mounted broadcasting equipment; the control adjusting part comprises a loudspeaker volume knob, a microphone volume knob, a monitoring volume knob, an auxiliary function button and a page adjusting button, wherein the control adjusting part comprises a loudspeaker volume knob, a microphone volume knob, a monitoring volume knob, an auxiliary function button and a page adjusting button; the information flow input/output part is provided with a 3.5mm audio output port, a CF card socket, a USB socket, a FLASH card socket and a microphone input port which are arranged at the left lower part of the front surface of the vehicle-mounted broadcasting equipment; the microphone hanging rack, the radiating air outlet and the equipment switch are arranged on the left side surface of the vehicle-mounted broadcasting equipment; the power supply input port, the PIS input socket and the radio input socket are arranged behind the vehicle-mounted broadcasting equipment; the shell base is arranged below the vehicle-mounted broadcasting equipment; the vehicle-mounted broadcasting equipment is internally provided with the DSP anti-howling and anti-noise processing circuit, so that the requirement of broadcasting on howling prevention is met, and the broadcasting function of the motor train unit is realized.

In order to better realize the utility model, the broadcasting state indicator lamp comprises a standby indicator lamp, an on-hook indicator lamp, a call indicator lamp, a busy indicator lamp and an equipment abnormality indicator lamp.

In order to better realize the utility model, the auxiliary function buttons comprise a last song button, a next song button, a play button, a pause button, a stop button, a switching button, a radio play button, a USB play button, a CF card play button, a FLASH card play button, a manual play button, an automatic play button, a return button, a determination button and two self-defined function buttons.

In order to better realize the utility model, the page adjusting button comprises an up direction key, a down direction key, a left direction key and a right direction key.

In order to better realize the utility model, the audio acquisition device comprises a loudspeaker module and an amplifier module.

In order to better realize the utility model, the PIS input socket inputs and outputs the information control flow of the passenger information system controller.

In order to better implement the utility model, the USB socket connects a USB flash disk or other USB interface device with the device.

Compared with the prior art, the utility model can automatically adjust the sound size of the loudspeaker of the motor train unit on the premise of meeting the functions of public broadcasting, personnel intercom, broadcasting volume adjustment and broadcasting monitoring, and simultaneously prevents the microphone with the too high sound pressure level of the loudspeaker of the system from generating howling, thereby improving the riding and traveling experience of passengers. Has the advantages of convenient operation, low cost and complete functions.

Drawings

FIG. 1 is a schematic diagram of the present utility model;

FIG. 2 is a schematic diagram of the location of an audio acquisition device of the present utility model;

fig. 3 is a schematic front view of the in-vehicle broadcasting apparatus of the present utility model;

fig. 4 is a schematic diagram of the vehicle-mounted broadcasting apparatus of the present utility model;

fig. 5 is a schematic diagram of howling suppression principle of the on-vehicle broadcasting apparatus of the present utility model;

Reference numerals in the drawings: 1. an audio acquisition device; 2. a microphone hanger; 3. a heat radiation air outlet; 4. a device switch; 5. broadcasting a status indicator light; 6. an open industrial display screen; 7. a speaker volume knob; 8. a microphone volume adjustment knob; 9. monitoring a volume adjusting knob; 10. an auxiliary function button; 11. a page adjustment button; 12. 3.5mm audio output port; 13. a CF card socket; 14. a USB socket; 15. FLASH card sockets; 16. a microphone input port; 17. a housing; 18. a power supply input port; 19. PIS input jack; 20. a radio input jack; 21. a shell base.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

The motor train unit broadcasting system can simultaneously meet various functional requirements, and can automatically adjust the size of the motor train unit loudspeaker on the premise of meeting public broadcasting, personnel intercom, broadcasting volume adjustment and broadcasting monitoring functions, meanwhile, the microphone with the too high sound pressure level of the system loudspeaker is prevented from generating howling, and the riding and traveling experience of passengers is improved.

In order to make the structural presentation of the present utility model clear, a complete description of the principles and better expression of advantages thereof can be presented to a user in the contents and techniques of the present utility model, and the following detailed description is provided with reference to the accompanying drawings.

Referring to fig. 1, the present utility model provides a technical solution: the novel EMUs broadcasting system inputs the processing result to the radio receiving and audio processing module after being input to the digital broadcasting processing module through various input ends, meanwhile, AM filter circuit and FM filter circuit signals sent by the radio are also input to the radio receiving and audio processing module, video signals output by the radio receiving and audio processing module are displayed on an open industrial display screen, and audio signals output by the radio receiving and audio processing module are played by a loudspeaker module integrated with the audio acquisition equipment 1 after being amplified by an amplifier.

Referring to fig. 2-4, the present utility model provides a technical solution: the audio acquisition equipment 1 is positioned above the side wall of the passenger room of the motor train unit; the broadcasting state prompting lamp 5 and the open type industrial display screen 6 are arranged on the right half side of the front face of the vehicle-mounted broadcasting equipment; the control adjusting part comprises a loudspeaker volume knob 7, a microphone volume knob 8, a monitoring volume knob 9, an auxiliary function button 10 and a page adjusting button 11 which are arranged at the upper left of the front surface of the vehicle-mounted broadcasting equipment; the information flow input/output part is provided with a 3.5mm audio output port 12, a CF card jack 13, a USB jack 14, a FLASH card jack 15 and a microphone input port 16 which are arranged at the left lower part of the front surface of the vehicle-mounted broadcasting equipment; the microphone hanging frame 2, the radiating air outlet 3 and the equipment switch 4 are arranged on the left side face of the vehicle-mounted broadcasting equipment; the power input port 18, the PIS input socket 19 and the radio input socket 20 are arranged at the rear of the vehicle-mounted broadcasting equipment; the shell base 21 is arranged below the vehicle-mounted broadcasting equipment; the vehicle-mounted broadcasting equipment is internally provided with the DSP anti-howling and anti-noise processing circuit, so that the requirement of broadcasting on howling prevention is met, and the broadcasting function of the motor train unit is realized.

Preferably, the broadcast status indicator 5 includes a standby indicator, an on-hook indicator, a call indicator, a busy indicator, and an equipment abnormality indicator.

Preferably, the auxiliary function buttons 10 include a last song button, a next song button, a play button, a pause button, a stop button, a switch button, a radio play button, a USB play button, a CF card play button, a FLASH card play button, a manual play button, an automatic play button, a return button, a confirm button, and two custom function buttons.

Preferably, the page adjusting button 11 includes an up direction button, a down direction button, a left direction button, and a right direction button.

Preferably, the audio collection device 1 includes a speaker module and an amplifier module.

Preferably, the PIS input socket 19 inputs and outputs information control streams of the passenger information system controller.

Preferably, the USB socket 14 connects a USB flash disk or other USB interface device to the device.

Referring to fig. 5, an audio signal captured by the audio acquisition device 1 is transmitted to a radio receiving and audio processing module, and a multi-point filtering and multi-subband frequency shift technology is adopted to keep the harmonic property of the original pitch period, so that the distortion is very small; adaptively eliminating acoustic feedback by acoustic modeling of an environmental feedback path; the feedback path change can be tracked quickly, and the howling suppression capability is greatly enhanced; the adaptive technique suppresses background noise without relying on a huge noise feature database. And after the read sound signals are subjected to sound feedback inhibition processing, the processing result is displayed on an open industrial display screen to form an inhibition result graph.

Claims (6)

1. A novel EMUs broadcasting system, characterized by: the device comprises an audio acquisition device (1), a microphone hanging frame (2), a heat dissipation air outlet (3), a device switch (4), a broadcasting state prompt lamp (5), an open type industrial display screen (6), a loudspeaker volume knob (7), a microphone volume adjusting knob (8), a monitoring volume adjusting knob (9), an auxiliary function button (10), a page adjusting button (11), a 3.5mm audio output port (12), a CF card socket (13), a USB socket (14), a FLASH card socket (15), a microphone input port (16), a shell (17), a power input port (18), a PIS input socket (19), a radio input socket (20) and a shell base (21); the audio acquisition equipment (1) is positioned above the side wall of the passenger room of the motor train unit; the broadcasting state prompting lamp (5) and the open type industrial display screen (6) are arranged on the right half side of the front face of the vehicle-mounted broadcasting equipment; the device comprises a loudspeaker volume knob (7), a microphone volume adjusting knob (8), a monitoring volume adjusting knob (9), an auxiliary function button (10) and a page adjusting button (11), wherein the upper left side of the front of the vehicle-mounted broadcasting equipment is provided with a sound source; the 3.5mm audio output port (12), the CF card jack (13), the USB jack (14), the FLASH card jack (15) and the microphone input port (16) are arranged at the left lower part of the front surface of the vehicle-mounted broadcasting equipment; the microphone hanging frame (2), the radiating air outlet (3) and the equipment switch (4) are arranged on the left side face of the vehicle-mounted broadcasting equipment; the power supply input port (18), the PIS input socket (19) and the radio input socket (20) are arranged behind the vehicle-mounted broadcasting equipment; the shell base (21) is arranged below the vehicle-mounted broadcasting equipment; the vehicle-mounted broadcasting equipment is internally provided with the DSP anti-howling and anti-noise processing circuit, so that the requirement of broadcasting on howling prevention is met, and the broadcasting function of the motor train unit is realized.

2. The novel motor train unit broadcasting system according to claim 1, wherein: the broadcasting state prompting lamp (5) comprises a standby indicating lamp, an on-hook indicating lamp, a call indicating lamp, a busy indicating lamp and an equipment abnormality indicating lamp.

3. The novel motor train unit broadcasting system according to claim 1, wherein: the auxiliary function buttons (10) comprise a last song button, a next song button, a play button, a pause button, a stop button, a switch button, a radio play button, a USB play button, a CF card play button, a FLASH card play button, a manual play button, an automatic play button, a return button, a determination button and two self-defined function buttons.

4. The novel motor train unit broadcasting system according to claim 1, wherein: the page adjusting button (11) comprises an up direction key, a down direction key, a left direction key and a right direction key.

5. The novel motor train unit broadcasting system according to claim 1, wherein: the PIS input jack (19) inputs and outputs an information control flow of the passenger information system controller.

6. The novel motor train unit broadcasting system according to claim 1, wherein: a USB socket (14) connects a USB flash disk or other USB interface device to the device.