KR20070080659A - Controller of digital and plural public address - Google Patents

Abstract

A controller for digital and plural public address is provided to consist of multi-input and multi-output, and to variously control output channels, thus a user can select and transmit individual broadcasting, group broadcasting, reserved broadcasting, and emergency broadcasting programs. Plural media input channels(10) input media transmitted from media generators(G) in connection with the generators(G). Plural audio signal input channels(20) input audio signals transmitted from microphones(M) in connection with the microphones(M). Plural digital data output channels(30) output digital data converted from the audio signals and the transmitted media to speakers(P).

Description

Digital Diversity PA System {CONTROLLER OF DIGITAL AND PLURAL PUBLIC ADDRESS}

1 is a block diagram showing a digital multiplexed PA system according to the present invention;

2 is a view showing the case back of the digital multiplexed PA system according to the present invention;

3 is a view showing the front of the case of the digital plural PA system according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: Media input channel 11: ON / OFF switch

12: Sound quality controller 13: AC input terminal

14: LAN connector 15: Serial port

16: Reset button 20: Audio signal input channel

30: digital data output channel 40: terminal

50: Stereo device input channel 60: Operation buttons

70: liquid crystal display 80,80 ': volume control

90: charging terminal C: management computer

D: audio signal processor G: media generator

M: Microphone P: Speaker

S: Speaker Management Software S ': Audio Signal Compression Software

T: Audio data transmission unit N: Internet telephone module

100: digital plural PA system

The present invention relates to a public address control apparatus, and more particularly, to receive an analog input of a microphone or a media through a multi-input, multi-output device, convert it into a digital file, and selectively select individual broadcast or group broadcast as a speaker having a corresponding IP address. The present invention relates to a digital plural PA system.

In general, a speaker refers to an acoustic device that converts an electrical signal into vibration of a diaphragm to generate a small density wave in the air to radiate sound waves, and a management device for transmitting the electrical signal is connected by a cable.

The management device uses a method of transmitting an analog audio signal to the speaker by connecting a speaker cable for audio, which is a dedicated line to the speaker, and the management device amplifies the generated sound source through an amplifier (preamp, power amplifier) and delivers it to the speaker. do.

That is, various sound sources are first controlled through a preamplifier controlled by voltage and converted into an output capable of driving the speaker through a power amplifier generating high power, and transmitted to the speaker.

On the other hand, public address system (Public Address) is used when a school, a company, etc. want to control a plurality of speakers installed in a remote place with a single management system, conventionally installed individual audio speaker cable from the main line to the corresponding speaker It was.

This results in noisy noise, increased installation costs, difficult maintenance, complex lines, and low mobility, as well as the fact that the management device is not easy to control remotely installed speakers individually or in groups. There is a problem that can not be performed properly.

In order to solve this problem, the applicant has applied for a network audio speaker system (Application No. 9992) that uses only one UTP (CAT5) cable on November 30, 2004, and has already registered a patent on August 29, 2005. No. 512473).

The present invention was derived to optimize and apply the network audio speaker system, which is the applicant's registered patent, to public address broadcasting. The control apparatus is composed of multi-input and multi-output among the public address broadcasting system, and various output channels are controlled. The purpose of the present invention is to provide a digital plural PA system that can select and transmit individual broadcasts, group broadcasts, scheduled broadcasts, and emergency broadcasts.

In the digital multiplexing PA control apparatus of the present invention for achieving the above object, the PA system controls an input / output channel according to an analog signal transmitted from a sound source generator and transmits the same to a speaker.

A plurality of media input channels connected to the media generator and configured to receive media transmitted from the media generator;

A plurality of audio signal input channels connected to a microphone for receiving an audio signal transmitted from the microphone;

A plurality of digital data output channels configured to output digital data converted from the transmitted media and audio signals to a corresponding speaker;

After converting analog signal (media, audio signal) input from the media generator and microphone into digital data, assigning IP address and controlling digital data output channel according to priority by built-in software by interworking with management computer Selecting from individual broadcasting, group broadcasting, all broadcasting, reserved broadcasting, and emergency broadcasting to transmit to the speaker having the corresponding IP address through the network;

It is characterized by.

In addition, the terminal is provided with a terminal connected to the emergency detector installed in a remote location, characterized in that the emergency is automatically broadcast in the stored voice through the digital data output channel.

Preferably, a plurality of stereo input channels connected to an external stereo device and receiving audio signals transmitted from the stereo device are provided.

In addition, the management computer and the speaker is capable of two-way broadcasting with each other through a wired or wireless network, the speaker having a specific IP address can be forcibly broadcast to the speaker having a different IP address through the management computer.

Preferably, an operation button for setting at least one function selected from microphone input, individual broadcasting, group broadcasting, all broadcasting, reserved broadcasting, emergency broadcasting, melody, and weekly data is provided.

Alternatively, a touch screen liquid crystal display for setting and displaying at least one function selected from microphone input, individual broadcasting, group broadcasting, total broadcasting, reserved broadcasting, emergency broadcasting, melody, and weekly data is provided. .

On the other hand, the digital data is characterized in that the compressed data selected from MP3, AVI, ASF, characterized in that it comprises an Internet telephony module for providing Internet calls by one type of serial communication selected from the RS485, RS422, RS232C method. do.

Preferably, a volume controller for adjusting the volume of the media input channel, the audio signal input channel and the digital data output channel is provided, and the battery charger is provided so that the power can be automatically restored in case of power failure. .

More preferably, it is characterized in that connected to the individual speaker and a wireless or UTP cable.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a digital multiplexing public address control apparatus according to the present invention, Figure 2 is a view showing the case back of the digital multiplexing public address control apparatus according to the present invention, Figure 3 is a digital multiplexing public address according to the present invention It is a figure which shows the case front of a broadcast control apparatus.

Before describing the digital plural public address control device 100 of the present invention, a general public address control device will be described. The signal transmission unit T is configured.

The speaker management software (S) is composed of software capable of transmitting audio signals and control signals for managing the speakers, and the audio signal processing unit (D) uses audio signals reproduced using the speaker management software (S) as audio signals. send.

The audio data transmitting unit T converts the audio signal transmitted from the audio signal processing unit D into digital data using audio signal compression software S 'and then converts the audio signal from the corresponding speaker P to be transmitted through the network. Allocate an IP address and send it.

As shown in Figs. 1 to 3, the digital multiplexing public address control apparatus 100 of the present invention, in particular, the media input channel 10, audio signal input channel 20, digital data output channel 30 ) And the like.

The media input channel 10 includes a CD player, a cassette deck, a tuner, a chime, a siren, a television, a video tape recorder, a camcorder, Eight (CH1 to CH8) are provided at the rear of the case so as to be connected to the media generating device (G) such as a Camcorder by a cable, and receives the transmitted media (text, voice, video).

The audio signal input channels 20 are arranged in parallel with the media input channels 10 at the rear of the case so that eight CH1 to CH8 are connected to the microphone M and a cable, and receive the transmitted audio signals.

The digital data output channel 30 is connected to a corresponding speaker P by a cable and is provided on the rear of the case to output digital data converted from the transmitted media and audio signal (analog signal) to the corresponding speaker P. (CH1-CH8) is provided.

Speaker management software (S), the audio signal processing unit (D), and the like, when an analog signal (media, audio signal) is input through the media input device 10 or the audio signal input channel 20 from the media generator or microphone. After converting to digital data, assign an IP address.

In addition, it selects individual broadcasting, group broadcasting, all broadcasting, reserved broadcasting, emergency broadcasting, etc. according to the situation and transmits it to the speaker (P) having the corresponding IP address through the network. The digital data output channel 30 is controlled by software S according to the priority.

In this case, the converted digital data may be selected from among MP3, AVI, and ASF as compressed data, and the digital data output channel 30 may be wirelessly connected to an individual speaker P or may reduce noise and installation costs and simplify the line. It can be connected with UTP (CAT5) cable for easy maintenance.

The speaker management software (S) is preferably configured to be periodically upgraded through the management computer (C) by the embedded (Embedded) program of the firmware (Firm Ware) format.

In particular, the terminal 40 automatically broadcasts through the digital data output channel 30 when the management computer C finds an alarm sound (castle) stored in the speaker P having the corresponding IP address of the region where the emergency occurred. In order to interlock with the emergency detector (not shown in the figure) installed in each of the remote places is provided on the rear of the case.

This emergency detector can be installed in various places such as fire detection, infrared detection, entrance detection, impact detection, earthquake detection, heavy rain detection, tsunami detection, and the like.

In addition, four stereo input channels 50 (CH9 to CH12) are provided at the rear of the case so as to be connected by various stereo devices and cables besides the media generator (G) or the microphone (M). Receive input.

The operation button 60 has multiple touches on the front of the case for convenient setting of microphone input, 12 melodies, weekly data and types of broadcasts (individual broadcasts, group broadcasts, reserved broadcasts, emergency broadcasts, and full broadcasts). It is provided in the form of a button.

In this case, an infrared generator (not shown in the drawing) is provided inside the case, and the operation button 60 is further provided with a menu button such as a channel number for controlling the infrared generator so as to have a function of a remote controller. Various electronic products such as TV, VTR, and audio can be easily adjusted.

Alternatively, in place of or in parallel with the operation button 60, a touch screen type liquid crystal display (LCD) display capable of displaying a microphone input, twelve melodies, weekly data and a type of broadcast suitable for a situation, and displaying the same. 70 may be provided.

The volume controllers 80 and 80 'are rotated clockwise and counterclockwise to adjust the volume of the media input channel 10, the audio signal input channel 20, and the digital data output channel 30 on the back and front of the case. Each is provided.

In addition, a battery charger (not shown) may be provided to protect the memory and automatically restore power in case of power failure for stable broadcasting, and a charge of 24V DC power connected to the rear of the case by an adapter for charging Terminal 90 is provided.

On the other hand, the management computer (C) and the speaker (P) having a separate IP address is provided with a two-way broadcasting function over a wired, wireless network, if necessary, the speaker (P) having a specific IP address is managed computer (C) It is preferable that a function capable of forced broadcasting to the speaker (P) having another IP address through.

On the other hand, the built-in LAN telephony module (N) to provide Internet communication by serial communication (through the serial port (15)), such as RS485, RS422, RS232C method, rather than the general telephone cable Can be configured.

The Internet telephony module (N) is installed in a ROM of a microcomputer (MCU) and is a software for controlling a telephone transmission and reception algorithm to perform voice communication by connecting to an internet communication network. Configured TCP / IP unit, menu and dialing and answering, the output control of the liquid crystal display 70, key input, ring transmission and reception can be made of an application program for executing the function.

In this case, as a handset for a telephone call, a separate handset can be used or a convenient wireless communication such as existing 900 MHz communication, wireless LAN, and Bluetooth can be easily implemented, and wirelessly as easily as a mobile phone. It can apply WiBro (Wireless Broadband), an available wireless broadband Internet service technology.

In the other drawings, reference numerals denote ON / OFF switches 11 for controlling the power supply, sound quality controller (EQ) 12 for adjusting the sound quality of the output channel 30, AC power input terminal 13, It is a LAN port 14 for bidirectional network communication, a serial port 15 and a reset button 16 that can be controlled and communicated by RS485, RS422, RS232C.

Although the present invention has been described with respect to a speaker (P) having an individual IP address, such a configuration can be applied to a digital amplifier will be apparent to those skilled in the art.

The digital plural PA system of the present invention configured as described above operates as follows.

The digital multiplexed PA control apparatus of the present invention connects various media generators to the media input channel 10 provided with eight (CH1 to CH8) at the rear of the case by a cable, and eight (CH1 to CH8) to the rear of the case. The microphone is connected to the audio signal input channel 20 provided by the cable.

In addition, by connecting the speaker (P) of the remote place assigned the IP address to the digital data output channel 30 provided with eight (CH1 ~ CH8) on the rear of the case by UTP (CAT5) to reduce noise and installation cost Keep tracks simple for easy maintenance.

Once the media of text, voice, and video are input from the media generator G, and the audio signal is input from the microphone M, the software (S, S '), the audio signal processing, and the transmission unit (D, T) After converting the analog signal into digital data such as MP3, AVI, ASF, and assigning an IP address, the analog signal is transmitted to the corresponding speaker (P) through the digital data output channel (30).

Then, the built-in (speaker management) software (S) in conjunction with the management computer (C) to control the digital data output channel 30, to meet the situation such as individual broadcasting, group broadcasting, all broadcasting, reserved broadcasting, emergency broadcasting, etc. Select to transmit to the speaker (P) having the IP address.

At this time, since the operation button 60 is provided in the form of several touch buttons on the front of the case, microphone input, weekly data, 12 melodies and types of broadcasts suitable for the situation (individual broadcast, group broadcast, reserved broadcast, emergency broadcast, full broadcast) ) Can be conveniently set, and in another embodiment, when the touch screen type liquid crystal display 70 is provided, the setting and display of the function of the control device can be performed at the same time.

In particular, since the terminal 40 is provided at the rear of the case so as to be interlocked with the emergency detectors installed at each of the remote locations, the management computer searches for an area where an emergency has occurred in case of an emergency and quickly and automatically stores the stored alarm sound in preference to the speaker having the corresponding IP address. It is very efficient for disaster broadcasting because it can be broadcasted by the public.

In addition, if four stereo input channels 50 (CH9 to CH12) are provided on the rear of the case, a wider range of audio signals can be input and output by being connected to various stereo devices besides the media generator (G) or the microphone (M). Become.

Using the volume controllers 80 and 80 'provided at the rear and front of the guitar case, the volume of the media input channel 10, the audio signal input channel 20 and the digital data output channel 30 can be conveniently adjusted. In addition, when the battery charger and the charging terminal 90 are provided, power can be automatically restored in case of power failure, and thus the memory is completely protected and broadcasting is stable.

The digital multiplexed PA control apparatus of the present invention configured as described above can convert an analog signal into a digital file by a multi-input, multi-output device, and output channel control according to the priority can be performed according to the priority. Speakers enable various automatic broadcasting control such as individual broadcasting, group broadcasting, reservation broadcasting, emergency broadcasting, etc., and also provide useful effect of providing internet call through serial communication.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made within the spirit and scope of the present invention, and such modifications or variations are attached thereto. Belong to the claims.

Claims (11)

In the PA system for controlling the input and output channels according to the analog signal transmitted from the sound source generator to transmit to the speaker, A plurality of media input channels connected to the media generator and configured to receive media transmitted from the media generator; A plurality of audio signal input channels connected to a microphone for receiving an audio signal transmitted from the microphone; A plurality of digital data output channels configured to output digital data converted from the transmitted media and audio signals to a corresponding speaker; After converting analog signal (media, audio signal) input from the media generator and microphone into digital data, assigning IP address and controlling digital data output channel according to priority by built-in software by interworking with management computer Selecting from individual broadcasting, group broadcasting, all broadcasting, reserved broadcasting, and emergency broadcasting to transmit to the speaker having the corresponding IP address through the network; Digital diversification PA system, characterized in that. The method of claim 1, Digital plural PA system, characterized in that the terminal is provided with a terminal connected to the emergency detector installed in a remote location and is automatically broadcast through the digital data output channel to the stored voice in an emergency. The method according to claim 1 or 2, And a plurality of stereo input channels connected to an external stereo device and receiving audio signals transmitted from the stereo device. The method according to claim 1 or 2, The management computer and the speaker are capable of two-way broadcasting with each other through a wired or wireless network, and the digital diversification public address broadcasting, wherein a speaker having a specific IP address can be forcibly broadcast to a speaker having a different IP address through the management computer. Control unit. The method of claim 4, wherein Digital plural PA system, characterized in that the operation button for setting at least one function selected from the microphone input, individual broadcasting, group broadcasting, all broadcasting, reserved broadcasting, emergency broadcasting, melody, weekly data. The method of claim 4, wherein Digital multiplex public address broadcasting comprising a touch screen liquid crystal display for setting and displaying at least one function selected from microphone input, individual broadcasting, group broadcasting, total broadcasting, reserved broadcasting, emergency broadcasting, melody, and weekly data Control unit. The method of claim 5, And the digital data is compressed data selected from MP3, AVI, and ASF. The method of claim 5, Digital multiplexed PA control system comprising an Internet telephony module for providing Internet calls by one type of serial communication selected from RS485, RS422, and RS232C. The method according to claim 7 or 8, And a volume controller for adjusting a volume of a media input channel, an audio signal input channel, and a digital data output channel. The method according to claim 7 or 8, Digital plural PA system, characterized in that the battery charger is provided so that the power can be automatically restored in case of power failure. The method according to claim 7 or 8, Digital diversification public address control device, characterized in that connected to the individual speakers and wireless or UTP cable.

Images