WO2022260231A1

WO2022260231A1 - Ip network-based broadcasting system using poe switching hub

Info

Publication number: WO2022260231A1
Application number: PCT/KR2021/019977
Authority: WO
Inventors: 유성호
Original assignee: 주식회사 에펠; 주식회사 에펠아이
Priority date: 2021-06-11
Filing date: 2021-12-28
Publication date: 2022-12-15
Also published as: KR102340276B1

Abstract

The present invention relates to an IP network-based broadcasting system, using a PoE switching hub, which is capable of image surveillance and speaker output state detection by applying a switching hub to an IP speaker. The IP network-based broadcasting system comprises: a broadcast terminal equipped with an integrated management program for managing an IP speaker, an IP camera and an emergency bell, and obtaining, storing and displaying state information of the IP speaker; a switching hub connecting the broadcast terminal and the IP speaker to an IP network; an IP speaker server for registering the IP speaker and storing registration information; a PoE switching hub having installed therein a large-capacity power source, distributing the installed power source to the IP speaker, transmitting broadcast data to the IP speaker, and receiving a surveillance image and state information, which are transmitted from the IP speaker, and transmitting same to the broadcast terminal; and the IP speaker receiving the supply of driving power, supplying an auxiliary power source if the PoE switching hub has insufficient power, and transmitting, to the PoE switching hub, speaker output state surveillance information which is detected surveillance image and output state of the speaker. Therefore, the IP network-based broadcasting system using the PoE switching hub is realized.

Description

IP network based broadcasting system using POE switching hub

The present invention relates to an IP network-based broadcasting system using a PoE switching hub, and in particular, provides ease of expansion of an IP speaker by performing power distribution and communication using a Power over Ethernet (PoE) switching hub, It relates to an IP network-based broadcasting system using a PoE switching hub that enables video monitoring and detection of speaker output status by applying a switching hub to an IP speaker.

Business or educational buildings such as corporations, government offices, hotels, condominiums, or schools use premises broadcasting system devices to deliver key messages to members. For example, a broadcasting manager transmits audio data related to major work notifications, fire training notifications, or listening evaluation performance to speakers provided in each classroom using a public address broadcasting system.

In such a conventional premises broadcasting system, a plurality of broadcasting facilities such as an audio broadcasting device, a video broadcasting device, and a studio broadcasting device are connected in a very complex manner, and thus it is not easy to operate and maintain and cannot provide various broadcasting functions. There is a problem. In particular, when a new broadcasting device is added, it is inconvenient to separately install a power line.

Therefore, in order to improve the problems of the conventional premises broadcasting system, recently, a broadcasting system based on an IP network (Internet Protocol Network) is mainly used.

In the IP network-based broadcasting system, a server and a plurality of IP speakers are connected using a Power over Ethernet (PoE) switching hub. A PoE switching hub is also called "active Ethernet" and transmits data and power using an Ethernet cable without connecting power depending on the network equipment.

When using PoE, power is supplied from the port of the PoE device through a cable, so there is no need for separate wires or outlet devices, which greatly reduces installation costs.

A PoE system consists of a Power Sourcing Equipment (PSE) that supplies power and a Powered Device (PD) that receives power. An early PoE standard was called 802.af, and was capable of supplying 48V DC power at up to 13W, while a later version of the IEEE 802.3at standard, known as PoE+, would deliver 25.5W power over an Ethernet cable, almost twice as much as the previous version. can

By using this PoE system, a plurality of IP speakers are connected to implement an IP network-based broadcasting system.

The IP speaker includes a digital/analog converter and an amplifier, receives power from the PoE system, and receives and transmits data.

Such an IP network-based broadcasting system is a one-way broadcasting, and has a disadvantage in that it is impossible to transmit a monitoring image to a server or upload a sound source file to a server by connecting an IP camera through an IP speaker.

In addition, the general IP network-based broadcasting system as described above has a disadvantage in that the server cannot detect the output state of each IP speaker.

Meanwhile, another technique conventionally proposed for an IP network-based broadcasting system is disclosed in <Patent Document 1> below.

<Patent Document 1> stores a control device for controlling a premises broadcasting service, a broadcast channel table to which channel identification information and group identification information are mapped, and a broadcast group table to which group identification information and device identification information are mapped, and received from the control device Group identification information and channel identification information included in one broadcasting content are extracted, the group identification information and channel identification information are recorded in the broadcasting channel table, and device identification information recorded in correspondence with the group identification information is checked in the broadcasting group table. Then, the broadcast content is transmitted through the network to one or more of the broadcasting terminal, IP speaker, and IP distributor corresponding to the identified device identification information. Through this configuration, a network-based intelligent premises broadcasting system that is very easy to operate and maintain and provides various types of broadcasting services is provided.

However, this prior art also has a disadvantage in that the IP speaker cannot interwork with the IP camera to obtain surveillance images and transmit them to the server, or detect the output state of the IP speakers and transmit them to the server.

Therefore, the present invention is proposed to solve various problems occurring in the conventional premises broadcasting system and the prior art as described above, and performs power distribution and communication using a Power over Ethernet (PoE) switching hub to perform IP speaker (IP Speaker) ), and to provide an IP network-based broadcasting system using a PoE switching hub that enables video surveillance and speaker output status detection by applying a switching hub to an IP speaker.

Another object of the present invention is to provide an IP network-based broadcasting system using a PoE switching hub to solve the problem of power shortage by generating and supplying auxiliary power when the POE power is insufficient when an IP speaker is installed.

Another object of the present invention is to provide an IP network-based broadcasting system using a PoE switching hub in which an IP speaker and an emergency bell system are combined by interlocking an emergency bell system with an IP speaker.

In order to achieve the above object, "IP network-based broadcasting system using PoE switching hub" according to the present invention,

A broadcasting terminal that embeds an integrated operating program for operating IP speakers, IP cameras, and emergency bells, controls broadcasting of IP speakers, and obtains, stores, and displays status information of IP speakers;

a switching hub connecting the broadcast terminal and the IP speaker to an IP network;

an IP speaker server associated with the switching hub, registering IP speakers, and storing registration information;

Linking with the IP speaker server, loading large-capacity power, distributing the loaded power to the IP speakers, transmitting broadcasting data to the IP speakers, and receiving surveillance video and status information transmitted from the IP speakers to the broadcasting terminal PoE switching hub that transmits to and

It is connected to the PoE switching hub to receive driving power, supplies auxiliary power when the power of the PoE switching hub is insufficient, transmits received broadcasting data through a speaker, and monitors images obtained by interlocking with an IP camera using the PoE switching hub. It is characterized in that it includes an IP speaker that transmits to the switching hub, and transmits the output state monitoring information of the speaker detected by the output state of the speaker to the PoE switching hub.

In the above, the IP speaker is connected to another IP speaker through a UTP cable, and transmits power and data to the other IP speaker and transmits data received from the other IP speaker to the PoE switching hub.

In the above IP speaker,

a power converter that converts the power supplied from the PoE switching hub into power required for the IP speaker;

a main power supply unit supplying power supplied from the power converter to the main board and supplying external power as auxiliary PoE power when the power supply of the PoE switching hub is insufficient;

a switching hub that is connected to the PoE switching hub through an IP network, receives broadcasting data, and transmits monitoring images acquired through IP cameras, uploaded music files, and speaker output status monitoring information to the PoE switching hub; and

A main board that receives driving power through the main power supply unit, controls the output of broadcast data received in conjunction with the switching hub, and controls transmission of uploaded sound source files and speaker output status monitoring information. characterized by

In the above IP speaker,

an amplifier that amplifies a broadcasting sound source to a predetermined level under the control of the main board and outputs the amplified sound to a speaker; and

It is characterized in that it further comprises a microphone that receives the output signal of the speaker and transmits it to the main board as speaker output state monitoring information.

Emergency bell switch for operation in case of emergency;

an event switch generating an event signal when a user constructing a broadcasting system through an IP speaker operates when an event other than the emergency bell occurs;

an IP camera that captures a set monitoring area and transmits the captured monitoring image to the IP speaker; and

It is characterized by further comprising a sound source file uploader for uploading a sound source file through an IP speaker web page.

According to the present invention, power distribution and communication are performed using a Power over Ethernet (PoE) switching hub to provide ease of IP speaker expansion, and video monitoring and speaker output are provided by applying the switching hub to the IP speaker. There is an effect that can implement state detection.

In addition, according to the present invention, when the PoE power is insufficient when the IP speaker is installed, auxiliary power is generated and supplied to solve the power shortage problem.

In addition, according to the present invention, there is an effect of providing an IP network-based broadcasting system in which the IP speaker and the emergency bell system are combined by interlocking the emergency bell system with the IP speaker.

1 is a configuration diagram of an IP network-based broadcasting system using a PoE switching hub according to the present invention;

2 is a configuration diagram of an embodiment of the IP speaker of FIG. 1;

3 is a diagram showing an exemplary configuration of a web page for uploading a sound source file using an IP speaker in the present invention.

Hereinafter, an IP network-based broadcasting system using a PoE switching hub according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The terms or words used in the present invention described below should not be construed as being limited to a conventional or dictionary meaning, and the inventor may appropriately define the concept of the term in order to explain his/her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical spirit of the present invention based on the principle that it can be.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents and equivalents that can replace them at the time of the present application It should be understood that variations may exist.

1 is a configuration diagram of an IP network-based broadcasting system using a PoE switching hub according to a preferred embodiment of the present invention, comprising a main server 160, a broadcasting terminal 110, a switching hub 120, and an IP speaker server 130. , PoE switching hub (140), IP speaker (151 - 150+N), emergency bell switch (201), event switch (202), PoE auxiliary power supply (203), IP camera (204) and sound source file uploader ( 205) may be included.

The main server 160 serves to monitor and manage the current status of the entire broadcasting system in association with a plurality of broadcasting terminals.

The broadcasting terminal 110 embeds an integrated operating program for operating IP speakers, IP cameras, and emergency bells, controls broadcasting of IP speakers (151 - 150+N), and monitors the status of IP speakers (151 - 150+N). It plays a role in acquiring, storing, and displaying information. The broadcasting terminal 110 may be implemented with various devices such as a smart phone, a personal computer (PC), and a personal information terminal.

The switching hub 120 serves to connect the broadcasting terminal 110 and the IP speakers 151 to 150+N through an IP network, and the IP speaker server 130 is associated with the switching hub 120, It serves to register IP speakers (151 - 150+N) and to store registration information. When registering a new IP speaker, registration information of the IP speaker is stored and registered in the IP speaker server 130 .

The PoE switching hub 140 is connected to the IP speaker server 130, has a large capacity power supply, distributes the loaded power to the IP speakers 151 - 150+N, and connects the IP speakers 151 - 150+N ), transmits broadcasting data, receives monitoring images and status information transmitted from IP speakers (151 - 150+N) and transmits them to the broadcasting terminal.

This PoE switching hub 140 transmits data and power using an Ethernet cable without connecting power according to network equipment. Since power is supplied from the port of the PoE equipment through a cable, it does not require separate wires or outlet devices, which greatly reduces installation costs, and can automatically cut off power in the event of power overload, low load, or short circuit. The PoE switching hub 140 is composed of a power sourcing equipment (PSE) and a powered device (PD).

The IP speakers (151 - 150+N) are connected to the PoE switching hub 140 to receive driving power, supply auxiliary power when the PoE switching hub 140 lacks power, and send received broadcasting data to the speaker. The monitoring image acquired through interworking with the IP camera 204 is transmitted to the PoE switching hub 140, and the speaker output state monitoring information detected by the output state of the speaker is transmitted to the PoE switching hub 140. plays a role in conveying

Since each of the plurality of IP speakers 151 to 150+N has the same configuration and operation, only one IP speaker (eg, 151) will be described for convenience and clarification of the following description.

The IP speaker 151 is connected to another IP speaker (eg, 152) with a UTP cable, transfers power and data to the other IP speaker 152, and transmits data received from the other IP speaker 152. It is delivered to the PoE switching hub 140.

Another IP speaker is also connected to another speaker to supply power and interface data. In particular, when the IP speaker is installed, if the power of the PoE switching hub is insufficient, it can receive and use its own auxiliary power or supply it to other IP speakers or the PoE switching hub (140), so the IP speaker through the PoE switching hub (140) can give freedom to the scalability of

As shown in FIG. 2, the IP speaker 151 includes a power converter 301 for converting power supplied from the PoE switching hub 140 into power required for the IP speaker 151, the power converter ( 301) to the main board 303, and the main power supply unit 302 for supplying external power as PoE auxiliary power when the power supply of the PoE switching hub 140 is insufficient, and the PoE switching hub 140 ) and an IP network to receive broadcasting data, and transfer monitoring images obtained through the IP camera 204, uploaded music files, and speaker output status monitoring information to the PoE switching hub 140. 304, and receives driving power through the main power supply unit 302, controls the output of received broadcasting data in conjunction with the switching hub 304, and monitors the uploaded sound file and speaker output status It includes a main board 303 that controls the transmission of information.

As described above, by applying the switching hub to the IP speaker 151, smooth data communication through the IP network is provided, as well as ease of data interface and power supply in conjunction with other IP cameras.

In addition, the IP speaker 151 inputs an amplifier 306 that amplifies a broadcasting sound source to a predetermined level and outputs it to the speaker 307 under the control of the main board 303, and an output signal of the speaker 307. It may further include a microphone 305 that receives and transmits the speaker output status monitoring information to the main board 303 .

The microphone 305 serves to receive an output signal of the speaker 307 and transfer it to the main board 303 so that the output state of the speaker 307 can be monitored, and can be implemented as a condenser microphone.

The emergency bell switch 201 is a switch for operating in case of emergency. When the emergency bell switch 201 is operated, an emergency signal is generated and transmitted to the main board 303.

The event switch 202 serves to generate an event signal and deliver it to the main board 303 when a user constructing a broadcasting system through the IP speaker 151 operates when an event other than the emergency bell occurs. Using this event switch 202, a user can detect various event situations or create an event.

The IP camera 204 takes a picture of the set monitoring area and transmits the captured monitoring image to the IP speaker 151 . The user transmits the monitoring area change signal to the IP speaker 151 through the IP network through the broadcasting terminal 110, and the IP speaker 151 transfers the monitoring area change signal to the IP camera 204, thereby monitoring remotely. The area can be changed or set.

The sound source file uploader 205 serves to upload sound source files through the IP speaker web page. Through this sound source file uploader 205, a user uploads a plurality of sound source files to utilize a sound source according to a desired time period or event. In the present invention, it is explained that up to 50 sound source files can be uploaded.

The operation of the IP network-based broadcasting system using the PoE switching hub according to a preferred embodiment of the present invention configured as described above will be described in detail.

First, when the IP speaker 151 is installed in the IP network-based broadcasting system, IP speaker information is registered in the IP speaker server 130. The IP speaker server 130 registers information of the IP speaker 151, that is, ID information or installation location information.

Then, driving power is supplied to the IP speaker 151 registered in the PoE switching hub 140 .

The IP speaker 151 converts power (DC 48V) supplied from the PoE switching hub 140 into power required for the IP speaker 151 in the power converter 302 . That is, DC 48V supplied using a DC-DC converter is converted into predetermined DC power and transmitted to the main power supply unit 302 .

The main power supply unit 302 distributes the power supplied from the power converter 301 into predetermined DC power to supply driving power to the main board 303 and parts requiring power.

Here, as a feature of the present invention, when an IP camera is newly installed in an IP network, power supplied from the PoE switching hub 140 may be insufficient. This may cause a power shortage due to an increase in the number of IP cameras installed, and another cause may be a power shortage.

In this case, the main power supply unit 302 receives auxiliary power separately through the PoE auxiliary power supply unit 203 when power cannot be supplied by the power converter 301 or is insufficient, and this is used as driving power for the IP camera 151. use it as It is also possible to supply auxiliary power to other IP cameras as needed.

The main board 303 performs initialization when power is supplied from the main power supply unit 302 and controls the operation of the IP speaker 151 according to a built-in operating program.

In the state where the IP speaker 151 is registered on the IP network through the above process, the broadcasting terminal 110 transmits broadcasting data including ID information to a switching hub when a matter to be broadcasted through the IP speaker 151 occurs. It is transmitted to the IP network through (120).

Broadcast data transmitted to the IP network is delivered to the IP speaker 151 through the PoE switching hub 140.

The switching hub 304 of the IP speaker 151 receives broadcast data transmitted through the IP network and transfers it to the main board 303 . When receiving broadcasting data, the main board 303 analyzes ID information included in the received broadcasting data and, if it is its own broadcasting data, converts it into a sound source signal and transmits it to the amplifier 306 .

The amplifier 306 amplifies the received sound source signal according to the set amplification degree and transmits it through the speaker 307. As a result, IP network-based broadcasting is performed at the place where the IP speaker is installed.

Meanwhile, in the case of broadcasting through the IP speaker 151 as described above, a user who actually manages the broadcasting needs to visit the site where the IP speaker is installed to check whether the broadcast is transmitted at a set volume.

According to the present invention, the output state of the IP speaker 151 can be remotely monitored in real time without such inconvenience.

That is, the microphone 305 receives the output signal of the speaker 307 and transmits it to the main board 303 as speaker output state monitoring information. Here, the microphone 305 is a condenser microphone and can be used as an emergency bell in normal times.

The main board 303 determines the signal level of the speaker output state monitoring information input through the microphone 305, that is, the output level of the speaker 307, and generates speaker output state monitoring information including the determined output level. and transmitted to the IP network through the switching hub 304.

The speaker output status monitoring information thus transmitted is delivered to the broadcasting terminal 110 through the PoE switching hub 140 , the IP speaker server 130 , and the switching hub 120 .

The broadcasting terminal 110 displays the received speaker output state monitoring information on the screen. Here, the speaker output state monitoring information displayed on the screen may include IP speaker ID information, installation location information, and output level. Here, if the ID of the IP speaker is 0001 and the output level is 0, it can be seen that the IP speaker installed in the corresponding location does not generate output due to a failure or the like. If the output level is 2 and it is determined that this output level is too low, the user inputs a volume control command to increase the output volume of the corresponding IP speaker to 5 through the input device. The input volume control command of the IP speaker is transmitted to the IP network including ID information of the corresponding IP speaker.

The switching hub 304 of the IP speaker 151 receives data broadcast over the IP network and transfers it to the main board 303 . The main board 303 checks the received data and if its own data is correct and the data is a volume control command to raise the output volume to 5, the main board 303 controls the amplification degree of the amplifier 306 so that the output volume level of the speaker 307 is make it 5

Accordingly, the user can remotely monitor the speaker output state of the IP speaker 151 in real time, and remotely control the output volume level of the IP speaker simply.

On the other hand, as another feature of the present invention, the IP speaker 151 can obtain a surveillance image of a preset surveillance area in conjunction with the IP camera 204 and transmit it to the broadcasting terminal 110 .

For example, the switching hub 304 of the IP speaker 151 interworks with the IP camera 204 and transmits a real-time monitoring image acquired from the IP camera 204 to the IP network. Surveillance video transmitted over an IP network can be transmitted in packet or frame units. When video is transmitted in packet or frame units, identification information is included by distinguishing which IP camera the video is obtained from, so that the user can easily recognize the surveillance area when receiving surveillance video.

The surveillance video transmitted through the IP network is received by the communication terminal 110 through the PoE switching hub 140, the IP speaker server 130, and the switching hub 120.

Accordingly, the user can check the monitoring image of the surveillance area through the IP speaker 151 and the communication terminal 110 .

The communication terminal 110 stores the received surveillance video, so that when an incident occurs later, it can be used as information to identify the incident.

In addition, as another feature of the present invention, a broadcasting system can be implemented by combining the IP speaker 151 and the emergency bell switch 201.

For example, in an emergency situation, a specific person operates the emergency bell switch 201 in an on state. When the emergency bell switch 201 is operated, the main board 303 of the IP speaker 151 receives it, generates an emergency sound according to the operation of the emergency bell, and sends it to the speaker 307 through the amplifier 306. . Here, the emergency bell switch 201 can be used in emergency situations, fire outbreaks, and the like.

In addition, when an emergency signal is received through the emergency bell switch 201, the main board 303 transmits it to the IP network through the switching hub 304 so that the operator of the broadcast terminal 110 recognizes an emergency situation. The operator can remotely recognize which funeral event has occurred through the broadcasting terminal 110 .

Another feature of the present invention is that the user can create various event situations other than an emergency bell.

For example, an event switch 202 for monitoring and directing various situations is provided, and the event switch 202 is interlocked with the IP speaker 151. Thereafter, when the event switch 202 is operated in an on state according to the event situation, an event signal is generated and transmitted to the IP speaker 151. Events can be set according to various events according to event situations other than emergency bells by the user.

The main board 303 of the IP speaker 151 transmits the received event signal to the IP network through the switching hub 304 so that the operator can recognize the event situation occurring in a specific place in real time through the broadcasting terminal 110. do.

Meanwhile, as another feature of the present invention, the user can upload a sound source file through the IP speaker 151.

For example, a user uploads various sound source files to be uploaded through an IP speaker web page as shown in FIG. 3 . Here, although the number of sound source files to be uploaded is not limited, it is assumed that up to 50 are uploaded in the present invention. When uploading a sound source file through the IP speaker web page, the user can set the time to broadcast the sound source at a desired time or set the uploaded sound source to be used as a sound source for an event.

When the uploaded sound source file is delivered to the broadcasting terminal 110 through the IP speaker 151, the operator checks broadcast time information or event sound source setting information of the sound source file uploaded to the broadcasting terminal 110, The sound source is broadcasted during the corresponding time period, or the sound source set by the user is transmitted as the event sound source when an event occurs.

According to the present invention described above, power distribution and communication are performed using a Power over Ethernet (PoE) switching hub to provide ease of expansion of an IP speaker, and video surveillance and video surveillance by applying the switching hub to the IP speaker. It is possible to implement the detection of the output state of the speaker.

In addition, according to the present invention, an IP speaker and an emergency bell system may be interlocked to construct an IP network-based broadcasting system combining an IP speaker and an emergency bell system.

Although the invention made by the present inventors has been specifically described according to the above embodiments, the present invention is not limited to the above embodiments, and it is common knowledge in the art that various changes can be made without departing from the gist of the present invention. It is self-evident to those who have

Claims

A broadcasting terminal that embeds an integrated operating program for operating IP speakers, IP cameras, and emergency bells, controls broadcasting of IP speakers, and obtains, stores, and displays status information of IP speakers;

a switching hub connecting the broadcast terminal and the IP speaker to an IP network;

an IP speaker server associated with the switching hub, registering IP speakers, and storing registration information;

Linking with the IP speaker server, loading large-capacity power, distributing the loaded power to the IP speakers, transmitting broadcasting data to the IP speakers, and receiving surveillance video and status information transmitted from the IP speakers to the broadcasting terminal PoE switching hub that transmits to

an IP speaker connected to the PoE switching hub to receive driving power or receiving driving power through another IP speaker, supplying auxiliary power when the PoE switching hub lacks power, and transmitting received broadcasting data through the speaker; and

Including a PoE auxiliary power supply for supplying auxiliary power,

The IP speaker includes a main power supply that supplies power supplied from a power converter to a main board and supplies external power supplied through the PoE auxiliary power supply as PoE auxiliary power when the power supply of the PoE switching hub is insufficient,

The main power supply unit receives auxiliary power separately through the PoE auxiliary power supply unit when power cannot be supplied by the power converter or is insufficient, and uses it as driving power for the IP camera. supplied to the camera.

The IP speaker is connected to another IP speaker with a UTP cable, transmits power and data to the other IP speaker, and transmits data received from the other IP speaker to the PoE switching hub. IP network based broadcasting system.
In claim 1, the IP speaker,

An IP network-based broadcasting system using a PoE switching hub, characterized in that for transmitting surveillance images acquired in conjunction with an IP camera to the PoE switching hub.
In claim 1, the IP speaker,

An IP network-based broadcasting system using a PoE switching hub, characterized in that the speaker output state monitoring information detected by the output state of the speaker is transmitted to the PoE switching hub.
In claim 1, the IP speaker,

a power converter that converts the power supplied from the PoE switching hub into power required for the IP speaker;

a switching hub that is connected to the PoE switching hub through an IP network, receives broadcasting data, and transmits monitoring images acquired through IP cameras, uploaded music files, and speaker output status monitoring information to the PoE switching hub; and

A main board that receives driving power through the main power supply unit, controls the output of broadcast data received in conjunction with the switching hub, and controls transmission of uploaded sound source files and speaker output status monitoring information. An IP network-based broadcasting system using a PoE switching hub, characterized in that.
In claim 4, the IP speaker,

an amplifier that amplifies a broadcasting sound source to a predetermined level under the control of the main board and outputs the amplified sound to a speaker; and

The IP network-based broadcasting system using a PoE switching hub according to claim 1, further comprising a microphone for receiving the output signal of the speaker and transmitting the speaker output status monitoring information to the main board.
In claim 1, an emergency bell switch for operating in case of emergency;

an event switch generating an event signal when a user constructing a broadcasting system through an IP speaker operates when an event other than the emergency bell occurs;

an IP camera that captures a set monitoring area and transmits the captured monitoring image to the IP speaker; and

An IP network-based broadcasting system using a PoE switching hub, further comprising a sound source file uploader for uploading sound source files through an IP speaker web page.