CN215498988U

CN215498988U - Fire control broadcast controller

Info

Publication number: CN215498988U
Application number: CN202122136184.2U
Authority: CN
Inventors: 张阳; 徐建峰; 王圆圆; 张�林
Original assignee: Tianjin Allpossible Electronci Information Technology Co ltd
Current assignee: Tianjin Allpossible Electronci Information Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-01-11
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a fire-fighting broadcast controller, which is technically characterized in that: the control circuit in the casing comprises a main power supply conversion module, a boosting module, a control core module, an auxiliary voltage conversion module, a voltage detection module, a main power supply conversion module and a standby power supply conversion module, wherein the output of the main power supply conversion module is connected with the boosting module, the boosting module boosts the voltage of 48V to 90V for a digital power amplifier to use, and the boosting module is connected with a power amplifier voltage output interface of the casing; the main power supply conversion module and the standby power supply conversion module are connected with each other to output an auxiliary power supply conversion module, and provide working voltage (12V +/-5V) for the system; the control core module is connected with the voltage detection module and the audio output module and provides a control signal for the system. The utility model has reasonable design and high system integration degree, can realize multi-path call recording and monitor the call condition of any path in real time, improves the continuous working performance and the stability of the equipment, and can be widely applied to the field of railway passenger transportation.

Description

Fire control broadcast controller

Technical Field

The utility model belongs to the technical field of railway communication broadcasting, and particularly relates to a fire-fighting broadcasting controller.

Background

With the rapid development of high-speed rails and the investment and operation of passenger dedicated lines, a large part of fire-fighting broadcast systems and passenger broadcast systems of railway passenger stations are overlapped, and the key point for reducing repeated construction is that the two systems can be fused together.

The fire-fighting broadcast system is also called as an emergency broadcast system, is an important device for escape evacuation and fire-fighting command of fire disasters, and plays an extremely important role in the whole fire-fighting control management system. When a fire disaster occurs, an emergency broadcast signal is sent out through sound source equipment, and after power amplification, the emergency broadcast is realized by switching to a sound box in a broadcast designated area through a broadcast switching module. A general broadcasting system is mainly composed of a host-side device: sound source equipment, broadcast power amplifier, fire alarm controller (linkage type), etc., and field equipment: the output module and the sound box are formed, but because too many connecting cables are arranged between the modules, the system equipment is easy to break down, and the continuous working performance of the equipment is unstable.

SUMMERY OF THE UTILITY MODEL

In view of the problems raised by the above background art, the present invention is directed to: it is intended to provide a fire fighting broadcast controller.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:

a fire-fighting broadcast controller comprises a shell, wherein a front panel of the shell is provided with an LCD display screen, a monitoring volume knob, a microphone input interface, a USB recording query interface, a monitoring loudspeaker, a working mode indicator lamp, a working selection button, a partition selection button and a recording play button;

the back panel of the shell is provided with a main power supply input interface, a standby power supply input interface, a power amplifier power supply output interface, a fire alarm main contact point input interface, a power amplifier control interface and a voice output interface, wherein the main power supply input interface is connected with a main power supply fuse, and the standby power supply input interface is connected with a standby power supply fuse;

a control circuit is installed in the casing and comprises an LCD driving module, a main power supply module, a main/standby power supply conversion module, a boosting module, a core control module, a voltage detection module, a secondary power supply module and an audio output module;

the main power supply module is connected with the main power supply and standby power supply conversion module, the output end of the main power supply and standby power supply conversion module is connected with the boosting module, the boosting module is connected with the output interface of the power amplifier power supply, the output end of the main power supply and standby power supply conversion module is connected with the auxiliary power supply module, the core control module is connected with the voltage detection module and the audio output module, and the LCD driving module is connected with the LCD display screen.

Further, the main/standby power conversion module includes a function of dynamically switching between the main power supply and the standby power supply.

Further limited, a fire-fighting partition selecting keyboard is arranged on the front panel of the shell.

Further, a power indicator is arranged on the front panel of the casing and connected with the main power supply conversion module and the standby power supply conversion module.

Further, the LCD driving module is a full-color screen driving module.

Further limited, the LCD display screen is a full-color screen LCD.

Further, the shell is a 2U standard cabinet.

The utility model has the following advantages:

1. the utility model has reasonable design, the passenger transport broadcasting system is combined with the fire-fighting broadcasting system, the integration degree is high, and simultaneously, the connecting cables among modules are correspondingly reduced after the equipment is integrated, and the fault points of the system equipment are reduced; the continuous working performance and the equipment stability of the equipment are improved;

2. various types of standard interfaces are arranged on the rear panel of the shell, so that data, external audio and internal audio can be conveniently switched and transmitted, and the installation and connection are convenient; meanwhile, the LCD screen is arranged on the front panel of the shell, so that the working states of audio output and output can be clearly displayed, and the use and maintenance of equipment are facilitated;

3. the utility model can provide a convenient and fast operation interface, not only supports the display of an LCD screen, but also supports an external display, can conveniently control system equipment by an operator and quickly complete various set and query tasks through an intuitive human-computer operation graphic display interface;

4. the utility model has compact structure and small volume, and the machine shell adopts a 2U standard machine cabinet, thereby being convenient for equipment installation, maintenance and carrying.

Drawings

The utility model is further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a schematic diagram of a front panel structure of a fire broadcast controller according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a rear panel structure of a fire broadcast controller according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a control circuit of a fire broadcast controller according to an embodiment of the present invention;

the main element symbols are as follows:

the device comprises an LCD display screen 1, a monitoring volume knob 2, a microphone input interface 3, a USB recording inquiry interface 4, a monitoring loudspeaker 5, a working mode indicator lamp 6, a working selection button 7, a partition selection button 8, a main power fuse 9, a standby power fuse 10, a main power input interface 11, a standby power input interface 12, a power amplifier power output interface 13, a fire alarm dry contact input interface 14, a 485 power amplifier control interface and voice output interface 15, a control circuit 16, a main power module 17, a main and standby power conversion module 18, a boosting module 19, a core control module 20, a voltage detection module 21, an auxiliary power module 22, an audio output module 23 and a recording play button 24.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1-3, the front panel of the fire-fighting broadcast controller of the present invention is provided with an LCD display screen 1, a monitoring volume knob 2, a microphone input interface 3, a USB recording query interface 4, a monitoring speaker 5, a working mode indicator 6, a working selection button 7, a partition selection button 8, and a recording play button 24;

the back panel of the casing is provided with a main power input interface 11, a standby power input interface 12, a power amplifier power output interface 13, a fire alarm main contact point input interface 14, a 485 power amplifier control interface and a voice output interface 15, the main power input interface 11 is connected with a main power fuse 9, and the standby power input interface 12 is connected with a standby power fuse 10;

a control circuit 16 is installed in the casing, and the control circuit 16 comprises an LCD driving module, a main power supply module 17, a main/standby power supply conversion module 18, a boosting module 19, a core control module 20, a voltage detection module 21, an auxiliary power supply module 22 and an audio output module 23;

the main power module 17 is connected with the main/standby power conversion module 18, the output end of the main/standby power conversion module 18 is connected with the boost module 19, the boost module 19 is connected with the power amplifier power output interface 13, the output end of the main/standby power conversion module 18 is connected with the auxiliary power module 22, the core control module 20 is connected with the voltage detection module 21 and the audio output module 23, and the LCD drive module is connected with the LCD display screen 1.

In this embodiment, the main power module 17 is connected to the main/standby power conversion module 18, and the main/standby power conversion module 18 switches the main power module 17 to supply power to the device; the 48V voltage is output to the boosting module 19 by the main power supply module 17, the 48V voltage is boosted to 90V by the boosting module 19 for the digital power amplifier to use, and the boosting module 19 is connected with the power amplifier power supply output interface 13 of the shell; the main/standby power conversion module 18 is connected with the auxiliary power module 22 to provide working voltage (12V, ± 5V) for the system, and the core control module 20 is connected with the voltage detection module 21 and the audio output module 23 to provide control signals for the system; the LCD driving module is connected with the LCD display screen 1 and the core control module 20, the LCD display screen 1 of the fire-fighting broadcast controller displays the running state of the fire-fighting broadcast controller device, the monitoring volume knob 2 adjusts the monitoring volume, the microphone input interface 3 is connected with the artificial broadcast microphone, the working mode indicator lamp 6 indicates whether the working mode of the fire-fighting controller is automatic or manual mode and information source state, the working selection button 7 switches the working state, the partition selection button 8 controls the fire-fighting partition broadcast, when the main power module 17 and the auxiliary power module 22 are over-current, the main power fuse 9 and the standby power fuse 10 fuse the protective device, the main power module 17 and the auxiliary power module 22 interface are respectively connected with the 220V main power supply and the 48V standby power supply, the power amplifier power supply outputs 90V working voltage to the power amplifier power supply, the fire-fighting alarm main contact input interface is connected with the fire-fighting alarm device to automatically trigger the fire-fighting broadcast, the 485 power amplifier control interface and the voice output interface output voice and control signals to the power amplifier.

Preferably, the active/standby power conversion module 18 includes a function of dynamically switching between the active power supply and the standby power supply.

A fire-fighting partition selecting keyboard is further arranged on the front panel of the preferred machine shell.

Preferably, a power indicator is disposed on the front panel of the housing, and the power indicator is connected to the main/standby power conversion module 18.

Preferably, the LCD driving module is a full-color screen driving module.

Preferably, the LCD display screen is a full-color screen LCD.

Preferably, the casing is a 2U standard cabinet.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A fire-fighting broadcast controller, characterized in that: the intelligent voice recorder comprises a casing, wherein an LCD display screen (1), a monitoring volume knob (2), a microphone input interface (3), a USB recording query interface (4), a monitoring loudspeaker (5), a working mode indicator lamp (6), a working selection button (7), a partition selection button (8) and a recording play button (24) are arranged on a front panel of the casing;

the rear panel of the shell is provided with a main power input interface (11), a standby power input interface (12), a power amplifier power output interface (13), a fire alarm main contact input interface (14), a 485 power amplifier control interface and a voice output interface (15), the main power input interface (11) is connected with a main power fuse (9), and the standby power input interface (12) is connected with a standby power fuse (10);

a control circuit (16) is installed in the casing, and the control circuit (16) comprises an LCD driving module, a main power supply module (17), a main/standby power supply conversion module (18), a boosting module (19), a core control module (20), a voltage detection module (21), an auxiliary power supply module (22) and an audio output module (23);

the power supply device is characterized in that the main power supply module (17) is connected with a main power supply conversion module (18), the output end of the main power supply conversion module (18) is connected with a boosting module (19), the boosting module (19) is connected with a power amplifier power supply output interface (13), the output end of the main power supply conversion module (18) is connected with an auxiliary power supply module (22), the core control module (20) is connected with the voltage detection module (21) and the audio output module (23), and the LCD driving module is connected with the LCD display screen (1).

2. A fire fighting broadcast controller as defined in claim 1, wherein: the main power supply and standby power supply conversion module (18) comprises a function of dynamically switching the main power supply and the standby power supply.

3. A fire fighting broadcast controller as defined in claim 2, wherein: and a fire-fighting partition selecting keyboard is also arranged on the front panel of the shell.

4. A fire fighting broadcast controller as defined in claim 3, wherein: the front panel of the shell is provided with a power indicator light, and the power indicator light is connected with the main power supply conversion module (18).

5. A fire fighting broadcast controller as defined in claim 4, wherein: the LCD driving module is a full-color screen driving module.

6. A fire fighting broadcast controller as defined in claim 5, wherein: the LCD display screen is a full-color screen LCD.

7. A fire fighting broadcast controller as defined in claim 6, wherein: the casing is a 2U standard cabinet.