KR20130060782A - Duplexing broadcasting system and method of controlling the same - Google Patents

Abstract

A redundant broadcasting system and a control method thereof are disclosed. The disclosed redundant broadcasting system includes a master system installed in a main control area; A slave system installed in a remote control zone and controlled by the master system; A local system connected to the master system and the slave system in a remote control area and installed for self-independent broadcasting; And a multiplexing communication device connected to the master system, the slave system, and the local system, respectively, to transmit or receive a sound source and communication data at a long distance. And a system controller for receiving and modulating and transmitting sound sources from the sound source generators, a power amplifier for amplifying a sound source from the system controller, and a sound source received from the power amplifier under control of the system controller. Including the relay group to send or block in, the audio control for the sound source input from the sound source generator and the sound source output of the power amplifier in the system control unit, in the system control device during the forced manual broadcast Sends all the sound sources to the power amplifier, And that by opening the output end of the system control device with manual force broadcast analog contacts all the relay group having the track is connected to enforce urgent emergency broadcast in all areas in its features.

Description

Duplex Broadcasting System and Control Method {DUPLEXING BROADCASTING SYSTEM AND METHOD OF CONTROLLING THE SAME}

The present invention relates to a redundant broadcasting system and a control method thereof, and more particularly, to a redundant broadcasting system and a control method capable of stabilizing a system in a multi-dimensional manner and maintaining a public address system in a broadcastable state at all times. will be.

PA system refers to a broadcasting device capable of delivering sound to a limited range of people by one-to-many communication methods.

The most important function of such public address system is to install emergency fire announcements by receiving information from the fire receiver in case of fire for the purpose of protecting human life.

The public address system is not only a simple building but also a building that should be able to broadcast freely (by class) such as elementary, middle, and high schools, and large buildings such as the Intelligent Building System (IBS) and public address systems. A wide range of applicability is required for a wide range of uses, such as buildings such as military units, which should be broadcast by large, medium and small units.

In addition, the PA system needs to exchange information between individual devices constituting the system in order to transmit a sound source necessary for broadcasting to an output area.

For example, in the case of an analog PA system, information is exchanged between devices using a contact method. In the case of a digital PA system, information is exchanged between devices through data communication.

Data communication types commonly used in digital PA systems include RS-232C (communication distance 20m), RS-422 (communication distance 1.2km) and RS-485 (communication distance 1.2km). There are serial communication and network communication such as LAN (Local Area Network), and when long distance communication is required, optical communication having a long distance for control communication is used.

1 is a block diagram showing an embodiment of a general single digital PA system.

Referring to FIG. 1, the system control apparatus 21 of the public address system includes a sound source generator 10, an audio controller 23, a manual region selector 27, and a relay group 26 through communication lines connected between devices. ), And the management computer 19 is connected to the system control device 21 to communicate with each output area broadcast status, device status, reserved broadcast, etc. through a GUI program of the management computer 19. In addition to status information, PC broadcasting can be executed and the sound quality can be controlled for each sound source.

The PA system can be used by distributing some components or the whole system to each zone according to the use in accordance with various site situations. In some sites, upstream broadcasting from lower region to upper region may occur in addition to general downlink broadcasting. do.

2 is a block diagram showing an embodiment of a distribution state of a digital PA system.

Referring to FIG. 2, the embodiment of FIG. 2 is a diagram illustrating the distribution of the PA system to enable centralized control broadcasting in an installation site of a large-scale building, etc., and Zone 1 is an area in which a main system is installed. This allows data communications to control all broadcasts in subzones, including Zone 1 and Zone 3.

And in the installation site of a wide area that needs to be interlocked between public address systems, as shown in Figure 3 can be designed to connect each public address system by data communication to enable independent broadcasting of individual zones and central control broadcast in Zone 1.

In addition, in order to operate the system designed as shown in FIG. 3, it is necessary to set individual device connection states according to complex device wiring, and to set each broadcasting area and user group area, sound source setting, reserved broadcasting setting, and the like.

This complex and large amount of settings are set using the GUI of the software installed on the management computer 19 in consideration of user convenience to the maximum, and the generated database is transmitted to the system controller 21 using data communication. Is generally used.

In addition, during operation, software of the management computer 18 is used for checking local broadcasting status, device operating status and broadcasting execution.

As described above, the primary function of public address system is to conduct announcement for protecting human life. Digital public address system requires data communication line for information exchange between individual devices or zones.

Since the communication lines are exposed to various external shocks such as fire, natural disasters, and aging, problems such as mechanical disconnection of the communication lines, damage to the communication IC due to short circuits or electric shocks, and software abnormalities of the devices may occur. .

In the conventional digital PA system that relies on a single line for communication, a part or all of the PA system may be in an uncontrollable state when the above situation occurs, which may cause a serious problem of failing to perform a broadcast when necessary. .

In addition, when access to the system controller 21 from the management computer 19 is not possible due to a hardware error or a software problem of the management computer 19, many problems may occur in the management and operation of the PA system.

The present invention has been created to solve the above problems, by implementing a redundant broadcasting system and its control method to stabilize the system in multiple dimensions, to maintain the public address system in a state capable of broadcasting at all times, simple operation An object of the present invention is to provide a redundant broadcasting system and a method of controlling the same.

The redundant broadcasting system of the present invention for achieving the above object comprises a master system installed in the main control area; A slave system installed in a remote control zone and controlled by the master system; A local system connected to the master system and the slave system in a remote control area and installed for self-independent broadcasting; And a multiplexed communication device connected to the master system, the slave system, and the local system, respectively, to transmit or receive a sound source and communication data at a long distance.

The master system includes: a sound source generator for generating a sound source for broadcasting; a system controller for receiving and modulating and transmitting sound sources from the sound source generators; and a power amplifier for amplifying a sound source from the system controller; And a relay group for transmitting or blocking a sound source received from the power amplifier to a speaker under control of the system controller.

Integrate the audio control of the sound source input from the sound source generator and the sound source output of the power amplifier into the system controller, and transmits the sound source to all the power amplifiers in the system controller during forced manual broadcasting. It is characterized in that it is provided to perform emergency emergency broadcasting in all areas by opening the output terminal of all the relay group connected to the system control device and the analogue passive contact line for forced manual broadcasting.

The redundant broadcasting system control method of the present invention for achieving the above object, the transmission multiplexing communication device and the receiving multiplexing communication device is connected to each other, the first transmission multiplexing communication device of the main control zone is It is connected with the system control device of the master system of public address broadcasting system, the second multiplexing communication device for remote transmission area is connected with the system control device of slave system of remote control area, and the public address system for independent broadcasting of remote control area is In the control method of a redundant broadcasting system configured by connecting to a receiving multiplex communication device,

(a) communicating between systems using a line set as a main line by the multiplexing communication device; (b) the multiplexing communication device monitoring the main line and the reserve line during use of the main line; (c) in step (b), determining whether an abnormality occurs in the main line or the preliminary line; (d) in the step (c), if an error occurs in the main line or the preliminary line, displaying the error information of each line; In the step (d), the error in the main line When the change occurs, the step of switching to the reserve line of the next order; characterized in that it comprises a.

According to the embodiment of the present invention, unlike the conventional digital PA system relying on a single data communication line, the system can be stabilized in a multi-dimensional manner by implementing a redundant broadcasting system and a control method thereof.

Therefore, the PA system can be maintained in a state capable of broadcasting at all times, and the original function of the PA system can be faithfully performed.

In addition, the mandatory passive broadcasting function, which can be used even when the communication line is in a normal state, can provide broadcasting convenience by performing a simple operation when a whole area broadcasting is required.

1 is a block diagram showing an embodiment of a general single digital PA system.
2 is a diagram showing an embodiment of a distribution state of a general digital PA system.
3 is a diagram illustrating an embodiment of an interworking configuration between a general digital PA system.
4 is a connection diagram showing a connection state and configuration of a redundant broadcasting system according to the present invention.
5 is a configuration diagram showing an embodiment of a slave system capable of emergency forced manual broadcasting of FIG.
6 is a flowchart sequentially illustrating a method for controlling a redundant broadcasting system according to the present invention.

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

4 is a block diagram showing a redundant broadcasting system according to the present invention.

Referring to FIG. 3, the redundant broadcasting system according to the present invention can be designed according to a user's request under any environmental conditions in the digital PA system, and the device setting of the PA system through a management computer 19a to be described later. It is a broadcasting system which can be operated, and which is operated by data communication between each device, and which enables manual broadcasting when a communication line, a communication IC and software error of a device, a hardware error or a software error of the management computer 19a are performed.

The redundant broadcasting system according to the present invention includes a master system 100 which is a main system control device of a public address system installed in a main control area, and a public address system installed in a remote control area and controlled by the master system 100. Including a slave system 200 as a sub system control device, and a local system 500 connected to a master system 100 and a slave system 200 in a remote control area and installed in an independent broadcasting system, which is used for independent broadcasting. It is composed.

In the redundant broadcasting system according to the present invention, the multiplexing communication apparatus 300a, 300b connected to the master system 100, the slave system 200, and the local system 500 to transmit or receive sound sources and communication data at a long distance. 400 is provided.

The multiplexing communication device 300a, 300b, 400 includes a first transmission multiplexing communication device 300a connected to the system control device of the master system 100 of the PA system of the main control area, and a slave system of the remote control area. And a second transmission pluralization communication device 300b connected to the system control device of 200, and a reception pluralization communication device 400 connected to the independent broadcasting local system 500 of the remote control area.

As shown in FIG. 4, the multiplexed communication apparatuses 300a, 300b, and 400 may use a variety of communication methods such as serial communication, LAN communication, and optical communication to communicate with the public address system between the main control area and the remote control area. Configure

In other words, the public address systems between zones are basically multiplexed communication using serial communication, LAN communication, optical communication, etc., so that when the communication error occurs, the public address broadcasting system is always available for broadcasting. .

In the redundant broadcasting system according to the present invention as described above, a configuration diagram of the master system 100 is shown in FIG. 5.

As shown in FIG. 5, the master system 100 generates a sound source for broadcasting such as a CD player 11a, a cassette deck 12a, a tuner 13a, a microphone 14a, a remote microphone 15a, and the like. The main unit is a sound source generator 10a and a control unit that manages the PA system, and integrates a function of receiving a sound source from the sound source generators 10a, modulating the sound source for broadcasting, and transmitting the sound source to the power amplifier 24a. A built-in system controller 21a, a power amplifier 24a for amplifying a sound source from the system controller 21a (specifically, a voice output unit of the system controller 21a, although not shown in the drawing); And a relay group 26a which transmits or blocks the sound source received from the power amplifier 24a to the speaker 25a in the required area by the control of the system controller.

The master system 100 includes a fire receiving panel 18a for comprehensively receiving fire information from fire sensors in each region, and a management computer 19a for collectively setting, managing, and monitoring public address systems.

The master system 100 configured as described above, as shown in FIG. 5, integrates the audio control for the sound source input from the sound source generator 10a and the sound source output to the power amplifier 24a in the system controller, When forced manual broadcasting is performed, the sound source is sent to all the power amplifiers 24a within the system control unit.

In addition, the master system 100 opens the output terminals of all the relay groups 26a connected by the system controller and the analog passive contact line for forced manual broadcasting to perform emergency emergency broadcasting to all regions.

That is, FIG. 5 is a system capable of performing emergency forced manual broadcasting in a single zone or multiple zones by applying an analog contact simple line to a digital PA system.

In other words, the present invention includes a compulsory passive broadcasting function to separately configure an analog contact signal transmission line so that the entire broadcasting can be performed even in the worst case where an abnormality occurs in all data devices.

As described above, the master system 100, which is a public address system, separately configures an analog contact signal transmission line, forcing the entire broadcast to be possible even in the worst case in which an abnormality occurs in all data devices as described below. Passive broadcasting function is included.

Therefore, although the present invention is not shown in the drawings, even when an error occurs in the management computer 19a or a problem in communication with the system control device is designed to enable emergency and manual broadcasting by direct operation in the system control device Full duplex broadcasting is possible.

Referring to the control method of the redundant broadcasting system according to the present invention having the configuration as described above are as follows.

6 is a flowchart showing a method of controlling a redundant broadcasting system according to the present invention in sequence.

4 to 6, in the redundant broadcasting system control method according to the present invention, data is duplicated or tripled between the master system 100, which is the main controller of the PA system, and the slave system 200, which is the remote controller. It is a method of forcing a passive broadcast to the multiplexing communication device (300a, 300b, 400) and public address system to transmit and receive.

This will be explained in detail.

First, as shown in Figure 4, after setting the priorities for the communication scheme, the first and second transmission multiplexing communication device (300a, 300b) and the receiving multiplexing communication device 400 are connected to each other in this order do.

The first transmission pluralization communication device 300a of the main control area is connected to the system control device of the master system 100 of the PA system of the main control area, and the second transmission pluralization communication device 300b of the remote control area. ) Is connected to the system control device of the slave system 200 of the remote control area, and the PA system for independent broadcasting of the remote control area is connected to the receiving multiplexing communication device 400.

When the redundant broadcasting system configured as described above is operated, the multiplexing communication devices 300a, 300b, and 400 communicate with each other by using a line set as a main line (step 610). 300a, 300b, and 400 normally communicate between systems using a line set as a main line among various communication methods.

In addition, the multiplexing communication device 300a, 300b, 400 monitors the main line and the reserve line during use of the main line (step 620).

In step 620, it is determined whether an error occurs in the main line or the reserve line.

In step 630, when an error occurs in the main line or the reserve line, the error information of each line is displayed on a display device such as an PA system.

In step 640, if an abnormality occurs in the main line, the process switches to the second-order reserve line (step 650).

In addition, in step 650, if an abnormality occurs in the spare track of the next order, the vehicle switches to the spare track.

In step 640 and step 650, the line in the abnormal state is continuously monitored, and when the line of the high priority line is restored, the communication port of the system is automatically switched to use the high priority line.

As described above, the multiplexing communication apparatuses 300a, 300b, and 400 monitor the reserve line at the same time while the main line is in use, and when an error occurs in the reserve line, the fault information is displayed. Switch to the reserve track of the rank.

In addition, the sound source transmission line also monitors the level and pilot signals, so if the level is detected in the transmission, the receiver determines that it is abnormal.

On the other hand, even during normal data transmission and reception, a pilot signal is used for monitoring, and the pilot data is transmitted and received by converting the data having a line abnormality and the sound level to be transmitted.

If an error occurs in all communication lines and it is impossible to control between devices or systems by data, the last broadcast is urgently broadcasted using a simple line of an analog contact method installed separately.

Forced passive broadcasting can also be used when the communication line is in a normal state.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. . Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

10a. Sound source generator
21a. System control
24a. Power amplifier
100. Master System
200. Slave system
300a. First transmission diversification communication device
300b. Diversification Communication Device for Second Transmission
400. Diversified communication device for reception
500. Local System

Claims (7)

A master system installed in the main control area;
A slave system installed in a remote control zone and controlled by the master system;
A local system connected to the master system and the slave system in a remote control area and installed for self-independent broadcasting;
And a multiplexed communication device connected to the master system, the slave system, and the local system, respectively, to transmit or receive a sound source and communication data at a long distance.
The master system,
A sound source generator for generating a sound source required for broadcasting, a system controller for receiving and modulating and transmitting sound sources from the sound source generators, a power amplifier for amplifying a sound source from the system controller, and the system controller It includes a relay group for transmitting or blocking the sound source received from the power amplifier to the speaker by the control,
Integrate the audio control of the sound source input from the sound source generator and the sound source output of the power amplifier into the system controller, and transmits the sound source to all the power amplifiers in the system controller during forced manual broadcasting.
Redundant broadcasting system, characterized in that for emergency emergency broadcasting to the entire area by opening the output terminal of all the relay group connected to the system control device and the analog passive analog line for forced passive broadcasting. The method of claim 1,
The multiplexing communication device,
A first transmission multiplexing communication device connected to a system control device of a master system of a public address system of a main control area;
A second transmission multiplexing communication device connected to a system control device of a slave system in a remote control area;
And a multiplexing communication device for reception connected to a local system for independent broadcasting of a remote control area. The transmission multiplexing communication device and the receiving multiplexing communication device are connected to each other, and the first transmission multiplexing communication device of the main control area is connected to the system control device of the master system of the PA system of the main control area, In the multiplexing communication device for the second transmission is connected to the system control device of the slave system of the remote control area, the PA system for independent broadcasting of the remote control area is connected to the receiving multiplexing communication device in the control method of the redundant broadcasting system,
(a) communicating between systems using a line set as a main line by the multiplexing communication device;
(b) the multiplexing communication device monitoring the main line and the reserve line during use of the main line;
(c) in step (b), determining whether an abnormality occurs in the main line or the preliminary line;
(d) in the step (c), if an abnormality occurs in the main line or the preliminary line, displaying the abnormality information of each line;
And in step (d), if an abnormality occurs in the main line, switching to a spare line of a next-order order. The method of claim 3,
And in step (d), if an abnormality occurs in the reserve line of the next order, switching to the reserve line gradually. The method of claim 3,
In the step (d), the line in the abnormal state performs continuous monitoring, and when the line of the higher priority line is restored, the redundant broadcasting system control, characterized in that for switching the communication port of the system to use the higher priority line Way. The method of claim 3,
And monitoring by using a pilot signal during data transmission and reception between the systems, and transmitting and receiving pilot data having a line abnormality data and a sound level transmitted to the pilot data. The method of claim 3,
The control method of the redundant broadcasting system, characterized in that the emergency broadcast is performed by using a simple line of analog contact type separately installed when the abnormality occurs in the line and the control between devices or systems by data is impossible.

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