CN214429711U

CN214429711U - Intelligent warning public address system

Info

Publication number: CN214429711U
Application number: CN202120829101.5U
Authority: CN
Inventors: 张银元; 马晓军; 魏筱涵; 吴枚; 刘晓华; 郭税争; 孙树德; 肖倩茹; 赵娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-10-19
Anticipated expiration: 2031-04-19

Abstract

The utility model provides an intelligent warning public address system relates to airport security protection field. This intelligent warning public address system, including NM7000B type blind landing equipment, signal sending terminal and warning end, the signal sending terminal includes NM7000B type blind landing equipment, serial ports wireless module, the warning end includes MCU master control circuit, power module, MCU main control module, wireless signal receiving module, power amplifier module, SD card module and peripheral hardware audio amplifier, power module is connected with MCU master control circuit electricity, MCU master control circuit is connected with wireless signal receiving module electricity, MCU master control circuit is connected with power amplifier module electricity. This intelligent warning public address system, this alarm system can realize the wireless removal at alarm terminal, and navigation person on duty can remove alarm terminal to the room of having a rest or sleeping in real time, can effectually avoid because of the person on duty rest or sleep cause the phenomenon of lou listening alarm signal, very big promotion leads to emergent guarantee ability.

Description

Intelligent warning public address system

Technical Field

The utility model relates to an airport security protection field specifically is an intelligent warning public address system.

Background

An instrument landing system of NM7000B type is an instrument landing system for aviation navigation produced by INDRA corporation in Norway, and transmits radio signals to the air through course and glide-down equipment to form a simulated field type of course and glide-down course, thereby establishing a virtual path pointing to the air from the tail end and entrance of the runway to guide the precise approach process of flight. The NM7000B type blind landing equipment has become the instrument landing equipment currently used in various airports in China due to its superior system performance and its reliability. At present, the Lanzhou, Dunhuang and Longnan airports of the group adopt NM7000B type blind landing equipment, and a monitoring terminal is installed in a remote controller of a navigation duty room to perform centralized monitoring and management of the blind landing equipment. When the station and the equipment have faults or parameters are abnormal, the remote control board can send out alarm sound. However, the remote control panel of the manufacturer has low alarm volume and cannot be externally connected with loudspeaker box equipment, and when the environment of a duty room is noisy, the duty personnel easily overlooks the alarm signal and cannot find and remove the fault condition of the equipment in time, thereby influencing the normal operation of the flight.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an intelligent warning public address system has solved the less problem of alarm system volume.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an intelligent warning public address system, includes NM7000B type blind drop equipment, signal sending end and warning end, the signal sending end includes NM7000B type blind drop equipment, serial ports wireless module.

The alarm end comprises an MCU main control circuit, a power supply module, an MCU main control module, a wireless signal receiving module, a power amplifier module, an SD card module and a peripheral sound box, wherein the power supply module is electrically connected with the MCU main control circuit, the MCU main control circuit is electrically connected with the wireless signal receiving module, the MCU main control circuit is electrically connected with the power amplifier module, the MCU main control circuit is electrically connected with the SD card module, the MCU main control circuit is electrically connected with an audio output module, and the MCU main control circuit is electrically connected with the MCU main control module.

Preferably, the serial port wireless module is connected with the wireless signal receiving module by adopting a wireless signal.

Preferably, the NM7000B type blind landing device is electrically connected to the serial port wireless module, and the signals sent by the NM7000B type blind landing device can be relayed and sent through the serial port wireless module.

Preferably, the power amplifier module may amplify the audio signal.

Preferably, the MCU main control circuit, the power supply module, the MCU main control module, the wireless signal receiving module, the power amplifier module, the SD card module and the peripheral sound box in the alarm terminal are assembled by adopting separate integrated circuit modules.

(III) advantageous effects

The utility model provides an intelligent warning public address system. The method has the following beneficial effects:

1. this intelligent warning public address system, this alarm system can realize the wireless removal at alarm terminal, and navigation person on duty can remove alarm terminal to the room of having a rest or sleeping in real time, can effectually avoid because of the person on duty rest or sleep cause the phenomenon of lou listening alarm signal, very big promotion leads to emergent guarantee ability.

Drawings

FIG. 1 is a block diagram of the structure system of the present invention;

FIG. 2 is a block diagram of the structure system of the present invention;

FIG. 3 is a circuit diagram of the MCU master control module structure of the present invention;

fig. 4 is a circuit diagram of the power amplifier module structure of the present invention;

fig. 5 is a circuit diagram of the structure of the wireless signal receiving module of the present invention;

fig. 6 is a circuit diagram of the power module structure of the present invention;

fig. 7 is a circuit diagram of the interface circuit of the mother board of the NM7000B type device remote controller of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

The embodiment of the utility model provides an intelligent warning public address system, as shown in fig. 1-7, including NM7000B type blind landing equipment, signal sending end and warning end, its characterized in that: the signal sending terminal comprises NM7000B type blind drop equipment and a serial port wireless module, the NM7000B type blind drop equipment is electrically connected with the serial port wireless module, and a mother board of a NM7000B type equipment remote controller is of an MB1801 type. J5SLAVE1/2 of the board is a DUSB25 pin interface that couples out heading, ALARM, WARNI NG, NORMAL, and BUZZER signals of the slide-down remote control device. When course/gliding equipment is in a normal working state, ALARM, WARNI NG and BUZZER signal outputs are all high levels, when equipment is in a fault or monitoring parameters fluctuate, ALARM, WARNI NG and BUZZER signal outputs are all changed into low levels, when a remote controller panel SLICINCE key is pressed, ALARM and WARNING are still kept at low levels, but the BUZZER signal is changed into high levels, signals sent by NM7000B type blind landing equipment can be relayed and sent through a serial port wireless module, real-time signal communication is realized between the NM7000B type blind landing equipment monitoring terminal and intelligent ALARM sound amplifying equipment through wireless transmission, the serial port wireless module is a module which can carry out wireless communication through a serial port and consists of a wireless transceiving chip and a single chip microcomputer with a serial port. Adopt serial ports wireless module, need not be under construction, also need not the wiring, can save material and cost of labor greatly, the installation is very convenient, and seamless connection basically, signal acquisition accomplishes the back, transmits to serial ports wireless module after being handled by MCU, with the unlimited sending alarm signal to the warning end, carries out action on next step by the warning end.

The alarm end comprises an MCU main control circuit, a power supply module, an MCU main control module, a wireless signal receiving module, a power amplifier module, an SD card module and a peripheral sound box, when abnormal alarm occurs in NM7000B type blind landing equipment, the DUSB25 pin interface level changes, the level change is transmitted to a serial port wireless module through a connecting wire, the serial port wireless module wirelessly transmits the wireless signal receiving module to the alarm end and transmits the wireless signal receiving module to the MCU for processing, the MCU judges selected audio according to signals, transmits the audio to the power amplifier for amplification processing, and finally outputs the audio to the external amplifier to broadcast the alarm audio to an attendant, the power supply module is electrically connected with the MCU main control circuit, the MCU main control circuit is electrically connected with the wireless signal receiving module, the serial port wireless module is connected with the wireless signal receiving module through wireless signals, and the wireless signal receiving module adopts a serial port wireless module with the same wireless signal transmitting end, different parameter modules can be selected as required to realize stable remote communication of 500m to 6km, the MCU main control circuit is electrically connected with the power amplifier module, the power amplifier module can amplify audio signals, the multi-end output function of the system provides a built-in external amplifier and audio output sound transmission mode, the built-in external amplifier can be used for playing alarm signals at ordinary times, and if required, the system can output an external sound box through audio to realize signal expansion and alarm signals with larger functions. Meanwhile, the system provides a volume adjusting function, the sound intensity can be selected according to needs through a volume adjusting knob on a panel, the system adopts a power amplification module with strong anti-interference capability, necessary shielding measures are taken, the influence of external noise on the system is effectively reduced, the standby noise of the system is reduced to the lowest level, unnecessary interference on an operator on duty is avoided, meanwhile, the power amplification module with strong driving capability is used, larger alarm volume can be provided, the operator on duty can hear alarm signals in a noisy sound environment, loss caused by missing of important signals is avoided, the MCU main control circuit is electrically connected with the SD card module, the SD card module and the power management module adopt mature and industrial-grade ready-made schemes, wherein the power supply module selects a power supply with the current about 1.3-1.5 times of the actual requirement, and the MCU main control circuit is electrically connected with the audio output module, MCU main control circuit is connected with MCU host system electricity, MCU host control circuit, power module, MCU host system module, radio signal receiving module, power amplifier module, SD card module and the peripheral hardware audio amplifier in the warning end adopt the equipment of separation integrated circuit module to form, and this system MCU main control processing module adopts Arduino control panel to realize. The Arduino control panel is a singlechip control panel taking an ATmega singlechip as a control core, a voltage stabilizing circuit is integrated on the panel except for an ATmega328 minimum system circuit, a welding peripheral circuit is not required to be designed, and the Arduino control panel has excellent performance and stability. Arduino possesses a large amount of ripe third party developer storehouse simultaneously, can directly utilize in the development process, has reduced the probability that the system maked mistakes, and this system passes through the USB port and realizes the power supply, and the interference killing feature is strong, and the ability of can upgrading is strong. Meanwhile, the power supply storage of the lithium battery is provided, and the lithium battery can continue to work by depending on the stored power supply when the power is temporarily cut off. The system provides an alarm reset function. When the person on duty knows the alarm, the person on duty can press the alarm reset button to turn off the alarm signal, and the system returns to a normal state to continue to alarm when the next alarm signal appears.

The working principle is as follows: during the use, after NM7000B type blind landing equipment appeared reporting to the police unusually, signal transmission end DUSB25 needle interface level changed, after passing this level change serial ports wireless module through the connecting wire, send the wireless signal receiving module of warning end and send MCU host system to handle by serial ports wireless module is wireless, MCU host system judges the audio frequency of selecting according to the signal, send the audio frequency to the power amplifier and do the amplification processing, export the play and report to the personnel on duty with the warning audio frequency finally.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an intelligent warning public address system, includes NM7000B type blind drop equipment, signal sending end and warning end, its characterized in that: the signal sending end comprises NM7000B type blind landing equipment and a serial port wireless module;

2. The intelligent audio amplifier system of claim 1, wherein: the serial port wireless module is connected with the wireless signal receiving module through a wireless signal.

3. The intelligent audio amplifier system of claim 1, wherein: the NM7000B type blind landing equipment is electrically connected with the serial port wireless module, and signals sent by the NM7000B type blind landing equipment can be relayed and sent through the serial port wireless module.

4. The intelligent audio amplifier system of claim 1, wherein: the power amplification module can amplify the audio signal.

5. The intelligent audio amplifier system of claim 1, wherein: the MCU main control circuit, the power supply module, the MCU main control module, the wireless signal receiving module, the power amplifier module, the SD card module and the peripheral loudspeaker box in the alarm end are assembled by adopting separate integrated circuit modules.