KR200443307Y1 - Loudspeaker - Google Patents

Abstract

The present invention relates to a loudspeaker, a frequency supply unit for generating and supplying a local signal for the radio, the RF signal input from the radio via the antenna and the radio signal from the radio input from the frequency supply unit by mixing the IF signal for the first radio A radio transceiver for outputting, a mobile communication unit for transmitting and receiving a voice and data signal to and from a mobile communication network through a mobile communication antenna, a voice call processing unit for converting and outputting a call sound among a signal input from the mobile communication unit, and outputting from a radio receiver And a control unit including a radio receiving signal converting unit for converting the inputted first IF signal for a radio into a voice signal, and an amplifying unit for amplifying the audio signal input from the control unit and outputting the same to a speaker. Can receive and broadcast alarm signal .

Loudspeaker, walkie talkie, cellphone

Description

Loudspeaker {loudspeaker}

1 shows a broadcasting system including a loudspeaker and a walkie talkie according to an embodiment of the present invention.

2 illustrates a broadcasting system including a loudspeaker and a radio according to another embodiment of the present invention.

3 schematically illustrates a configuration of a loudspeaker according to an embodiment of the present invention.

4 schematically illustrates a configuration of a loudspeaker according to another embodiment of the present invention.

<Brief Description of Drawings>

31: switching unit 32: signal receiving unit

33: frequency supply unit 34: reception signal mixer

35 control unit 36 amplification unit

37: transmit signal mixer 38: signal transmitter

The present invention relates to a loudspeaker, and more particularly, to a loudspeaker capable of wirelessly receiving an emergency situation and notification content, and further wirelessly transmitting a broadcast signal to another loudspeaker.

In Korea, the mountainous areas are mountainous and climatically hot and humid in summer, so heavy rainfall occurs frequently in high mountain areas. As a result, many hikers or low-lying people suddenly experience disasters. On the other hand, in the dry seasons such as spring and winter, forest fires due to the carelessness of hikers often occur, which causes damage to many forests and damages to forests.

Accordingly, local managers install loudspeakers in areas where disasters are expected to occur, such as mountains and rivers, and use them to disseminate emergency situations or announce other announcements through disaster alarm broadcasting. However, the current loudspeaker is implemented to be connected to the broadcast device in a wired manner when installed, to notify the local people of the urgent matters and the contents of the notification must be moved to the place where the broadcast device is installed to broadcast. As a result, it was inconvenient to install a wire to install loudspeakers throughout the region.

The present invention has been proposed in the background as described above, and an object of the present invention is to provide a loudspeaker that is easy to install because it does not need to be connected by wire with a broadcast apparatus.

It is a further object of the present invention to provide a loudspeaker capable of radio transmission of an input broadcast signal to another loudspeaker.

It is a further object of the present invention to provide a loudspeaker that monitors the occurrence of a disaster and further informs the administrator radio when a disaster actually occurs.

Another object of the present invention is to provide a loudspeaker that allows the administrator to monitor the occurrence of a disaster even at a distance.

In one aspect of the present invention for achieving the above object, the loudspeaker may be implemented to enable communication with the radio. The loudspeaker of the present invention according to this aspect has a signal receiver for receiving an RF signal for a radio from a radio through an antenna, a frequency supply for generating and supplying a local signal for a radio, and for a radio received from a frequency supply and a signal receiver. A control unit including a reception signal mixer which mixes a local signal and a radio frequency RF signal to output a first radio IF signal, and a reception signal conversion unit that converts the first radio IF signal input from the reception signal mixer into a voice signal; And an amplifier for amplifying and outputting a voice signal input from the received signal converter.

According to this aspect, the loudspeaker is implemented to receive and output a disaster alert signal, for example, from a radio, so that it is not necessary to connect with a broadcasting device in a wired manner and is easy to install.

According to an additional aspect of the present invention, the control unit further includes a transmission signal conversion unit for receiving a voice signal from the reception signal conversion unit and converts it into a second radio IF signal. According to such an additional aspect, a loudspeaker of the present invention includes a transmission signal mixer for outputting a radio frequency RF signal by mixing a second radio frequency IF signal input from a transmission signal converter and a local signal for a radio signal input from a frequency supply part; A signal transmitter which amplifies the RF signal for a radio signal inputted from the transmission signal mixer and transmits the signal to the outside through an antenna, and optionally, one of a signal transmitter and a signal receiver according to a switching control signal input from a controller to a selection terminal It further comprises a switching unit for connecting.

According to this aspect, the loudspeaker may wirelessly transmit a signal input from the radio to another loudspeaker outside the radio range.

Loudspeaker according to an additional aspect of the present invention, the disaster detection unit for detecting whether a disaster has occurred in the vicinity, the memory to store the alarm message to inform the disaster alarm, and the audio reproduction to reproduce the alarm message to an amplifier and output to the amplifier Includes more wealth. According to this additional aspect, the control unit further includes an audio control unit controlling the audio reproducing unit to output an alarm sound signal corresponding to the input disaster occurrence detection signal when the disaster occurrence detection signal is input from the disaster occurrence detection unit.

According to this aspect, the loudspeaker monitors the occurrence of the disaster and can even notify the manager radio when the disaster actually occurs.

The loudspeaker according to another aspect of the present invention may be implemented to enable communication with a cellular phone and a walkie-talkie. Specifically, the loudspeaker according to this aspect is made by mixing a frequency supply unit for generating and supplying a local signal for the radio, the radio RF signal input from the radio through the radio antenna and the radio signal for the radio input from the frequency supply unit. 1 A radio receiver for outputting a radio IF signal, a mobile communication unit for transmitting and receiving voice and data signals to and from a mobile communication network through a mobile communication antenna, and a voice for converting and outputting a call sound into an audible signal among mobile signals. And a control unit including a call processing unit, a radio reception signal converting unit for converting a first radio IF signal input from the radio receiver into a voice signal, and an amplifying unit for amplifying and outputting the audio signal input from the control unit to a speaker.

According to this aspect, the loudspeaker of the present invention is implemented to be able to communicate with a cellular phone and a walkie-talkie, so that the manager can control the loudspeaker from a long distance. In addition, the loudspeaker of the present invention, which can communicate with mobile phones and walkie-talkers, monitors the occurrence of a disaster and furthermore, if a disaster occurs, the administrator's mobile phone remotely through push-to-talk communication (PTT). Furthermore, it can be implemented to inform the management server of a disaster occurrence situation.

The foregoing and further aspects of the present invention will become more apparent through the following examples. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce the present invention.

1 shows a broadcasting system including a loudspeaker and a walkie talkie according to an embodiment of the present invention. As shown, the broadcasting system according to the present embodiment includes the loudspeakers 11, 12, 13 and the radio 17.

Loudspeakers (11, 12, 13), also known as a loudspeaker, a speaker is a device that converts electrical energy into sound signal energy that is radiated indoors or outdoors during sound reproduction. According to a characteristic aspect of the present invention, the loudspeakers 11, 12, 13 are implemented to have a radio communication module capable of communicating with the radio 17. The loudspeakers 11, 12 and 13 may be implemented to receive and output a disaster alarm signal from the radio 17, for example.

The radio 17 is called a wireless telegraph or radiotelephone machine, and there are industrial, household and simple frequency communication radios. Industrial radios use 136 ~ 172MHz and 444MHz frequency bands, and general radio stations are used for police, fire departments and military, while simple radio stations are mainly used for building security, factory security, and broadcasting. In addition, the domestic radio was first introduced in 1995 in Korea in order to activate the wireless communication of general consumers, and is classified into the first living radio station using the short wave frequency in the 27 MHz band and the second type using the microwave / microwave frequency in the 440 MHz band. do.

2 illustrates a broadcasting system including a loudspeaker and a radio according to another embodiment of the present invention.

As shown, the loudspeaker 21 according to the present embodiment is implemented to wirelessly transmit a signal input from the radio 17 to other loudspeakers 22 and 23 outside the communication range of the radio 17. Furthermore, the loudspeaker 21 may be implemented to be able to communicate with the mobile phone 24 and the management server 25 by using a PTT communication network or a VoIP communication network to which a terminal identification number or an IP address is currently or commercialized. Furthermore, the loudspeaker 21 monitors the occurrence of disasters in the surroundings, and furthermore, if a disaster actually occurs, it can be implemented to notify the disaster occurrence situation to the manager mobile phone 24 and the management server 25 in the remote place through the PTT communication.

Here, the PTT communication network includes a mobile communication network including a base station, a base station controller / exchange, a short message server, a packet data service node and a data core network, and a PTT communication request signal transmitted from an originating terminal via a mobile communication network. And a SIP gateway for searching for and providing service subscription authentication of the calling terminal and information on the called terminal based on the PTT communication request signal inputted so that PTT communication between the called terminal and the called terminal, and between the calling terminal and the called terminal transmitted from the SIP gateway And establishing a session and transmitting a PTT communication request message to the called terminal to control transmission and reception of PTT data between the calling terminal and the called terminal when a PTT communication response message is input from the called terminal.

3 schematically illustrates a configuration of a loudspeaker according to an embodiment of the present invention.

As shown, the loudspeaker according to the present embodiment includes a switching unit 31, a signal receiving unit 32, a frequency supply unit 33, a reception signal mixer 34, a control unit 35, an amplifier unit 36, and a transmission signal. A mixer 37 and a signal transmitter 38 may be included.

The switching unit 31 selectively connects any one of the signal transmitter 38 and the signal receiver 32 with the radio antenna according to a switching control signal input from the controller 35 to the selection terminal. In this case, it may be implemented as a single-pole / single-throw (SPST) GaAs PIN diode switch module.

The signal receiver 32 receives an RF signal for a radio from the radio through an antenna. In one embodiment, the signal receiver 32 receives an RF signal amplification unit for amplifying a gain of a radio frequency RF signal of a 440 MHz band input from an antenna, and receives the RF signal for amplification of the gain amplified radio signal through filtering. It may include an RF filter unit for removing noise.

The frequency supply unit 33 generates and supplies a local signal for a radio, and may be implemented as a conventional PLL circuit. In one embodiment, the frequency supply 33 may be implemented to supply a local signal for the radio of the 315MHz to 365MHz band. However, the loudspeaker according to the present invention is not limited thereto and may be variously implemented according to the radio frequency used.

The reception signal mixer 34 mixes the radio signal for the radio and the radio signal received from the frequency supply unit 33 and the signal receiver 32 to output the first radio IF signal of, for example, the 85.38 MHz band. Although not shown in the drawings, in one embodiment, the loudspeaker may include an IF filter unit that receives the first IF signal for the radio from the reception signal mixer 34 to remove noise through filtering.

The control unit 35 receives a voice signal from the reception signal converter 351 and the reception signal converter 351 for converting the first radio IF signal input from the reception signal mixer 34 into a voice signal. And a transmission signal converter 352 converting the IF signal. The controller 35 outputs a switching control signal to the switching unit 31 to selectively connect any one of the signal transmitter 38 and the signal receiver 32 with the radio antenna. The amplifier 36 amplifies the audio signal input from the received signal converter 351 and outputs it to the speaker. The loudspeaker according to the present invention is implemented to receive and broadcast a disaster alarm signal from the radio to provide convenience of installation and operation.

The transmission signal mixer 37 mixes the second radio IF signal input from the transmission signal converter and the local signal for the radio input from the frequency supply part to output the radio RF signal. Accordingly, the loudspeaker of the present invention can transmit radio signals, for example, a disaster alarm signal input from the radio to another loudspeaker outside the range of the radio.

The signal transmitter 38 amplifies the radio frequency RF signal input from the transmission signal mixer 37 and transmits the radio signal to the outside through the radio antenna. In one embodiment, the signal transmitter 38 includes an RF signal amplifier for amplifying the gain of the radio RF signal, and an RF filter unit for receiving the RF signal for amplified gain to remove the noise through filtering. Can be.

The loudspeaker according to an additional characteristic aspect of the present invention is a disaster occurrence detection unit 391 for detecting whether a disaster has occurred in the surroundings, a memory 392 for storing an alarm message informing of the disaster alert, and reproduces the alarm message with an audible sound. The audio reproducing unit 393 further outputs to the amplifier. According to this embodiment, the control unit 35 controls the audio reproducing unit 393 to output an alarm sound signal corresponding to the input disaster occurrence detection signal when the disaster occurrence detection signal is input from the disaster occurrence detection unit 391. The audio control unit 354 is further included.

The disaster occurrence detection unit 391 monitors various disaster occurrences, such as an increase in quantity due to heat, smoke, or flood due to a fire. In one embodiment, the disaster occurrence detection unit 391 may be implemented as a sensor, such as a heat sensor, smoke sensor, quantity detection sensor. In another embodiment, the disaster occurrence detection unit 391 may be implemented as a short range wireless communication module that receives a detection signal through a short range wireless communication with a detection sensor.

The memory 392 stores an alarm message informing of a disaster alert. For example, the memory 392 may be implemented as an ROM that is not electrically erasable such as EPI, flash memory, and the like. Here, the alarm message for notifying the disaster alert may be, for example, a disaster alert message for notifying occurrence of a fire, a flood, and the like.

The audio reproducing unit 393 reads a disaster alert message from the memory 392 according to a control signal input from the audio control unit 354 and converts it into an audible sound. In one embodiment, the audio playback unit 393 may be implemented as a mobile audio chip of YAMAHA.

In a further embodiment, the loudspeaker of the present invention receives the alarm signal output from the audio reproducing unit 393 and converts it into an IF signal for the second radio by transmitting the alarm signal signal to the transmission signal mixer 37. The signal transmission unit 38 may wirelessly transmit to another loudspeaker. Accordingly, the loudspeaker of the present invention may wirelessly transmit a signal input from the radio to another loudspeaker outside the range of the radio.

4 schematically illustrates a configuration of a loudspeaker according to another embodiment of the present invention. As shown, the loudspeaker according to the present embodiment largely includes a switching unit 51, a radio transceiver 52, a frequency supply unit 53, a mobile communication unit 54, a control unit 55 and an amplifier 56. Is implemented.

The switching unit 51 selectively connects one of the radio receiver 521 and the radio transmitter 523 with the radio antenna according to a switching control signal input from the controller 55 to the selection terminal. In this case, it may be implemented as a single-pole / single-throw (SPST) GaAs PIN diode switch module.

When the transceiver 52 receives a radio RF signal (eg, 448 MHz band) from the antenna for a radio, the radio IF signal (eg, 85.38 MHz) is mixed with a local signal for the radio received from the frequency supply unit 53. And demodulate the radio signal to the control unit 55, and receive the radio signal IF (for example, 130.38 MHz) for the radio from the control unit 55 and the local signal for the radio received from the frequency supply unit 53. It includes a radio transmitter 523 mixed and modulated to a radio frequency RF signal (448MHz) and then transmitted through an antenna.

The mobile communication unit 54 includes an antenna and an RF circuit for transmitting and receiving voice and data signals with the mobile communication network. In the present specification, the mobile communication unit 54 is interpreted to cover not only various versions of CDMA but also existing methods such as cellular, GSM, and W-CDMA, as well as mobile communication.

The controller 55 is implemented with a single microprocessor, for example. However, the present invention is not limited thereto, and may be, for example, composed of two chips, a digital signal processor that physically processes an audio signal and a microprocessor for system control, and they are physically integrated into a single package. It may be a chip. The controller 18 performs a modulation / demodulation operation on data transmitted / received in a manner preset for mobile communication at the time of incoming or outgoing voice call, for example, CDMA conversion / decoding such as channel coding / decoding, orthogonal code / decoding, and the like. Demodulation operation can be performed.

The control unit 55 converts and processes a call tone into an audible signal among the signals input from the mobile communication unit 54, and outputs a voice signal to the first radio IF signal input from the radio receiver 521. Transceiver radio signal conversion unit for receiving radio signal from radio receiver signal converting unit 551 and radio receiver signal converting unit 551 or voice call processing unit 553 to convert into second IF signal for radio It may be implemented including a part 352.

The loudspeaker according to an additional characteristic aspect of the present invention is a disaster occurrence detection unit 57 for detecting whether a disaster has occurred in the surroundings, a memory 58 for storing an alarm message informing of a disaster alert, and playing an alarm message with an audible sound. And an audio reproducing unit 59 output to the amplifier. According to this embodiment, the control unit 55 controls the audio reproducing unit 59 to output an alarm sound signal corresponding to the input disaster occurrence detection signal when the disaster occurrence detection signal is input from the disaster occurrence detection unit 57. It is implemented to further include an audio control unit 555.

The disaster occurrence detection unit 57 monitors various disaster occurrences, such as an increase in quantity due to heat, smoke, or flood due to a fire. In one embodiment, the disaster occurrence detection unit 57 may be implemented as a detection sensor, such as a thermal sensor, smoke sensor, quantity sensor. In another embodiment, the disaster occurrence detection unit 57 may be implemented as a short range wireless communication module that receives a detection signal through a short range wireless communication with a detection sensor.

The memory 58 stores an alarm message informing of a disaster alert. For example, the memory 58 may be implemented as an electronically non-erasable ROM such as EPI, flash memory, and the like. Here, the alarm message for notifying the disaster alert may be, for example, a disaster alarm message for notifying the occurrence of a fire, flood.

The audio reproducing unit 59 reads the disaster alert message from the memory 58 according to a control signal input from the audio control unit 555 and converts it into an audible sound. In one embodiment, the audio playback unit 59 may be implemented as a mobile audio chip of YAMAHA.

In a further embodiment, the loudspeaker of the present invention is a radio transmission signal conversion unit 552 receives the alarm sound signal output from the audio reproduction unit 59 and converts into a second radio IF signal for radio transmission 523 You can transmit to other loudspeakers via radio. Accordingly, the loudspeaker of the present invention may wirelessly transmit a signal input from a mobile phone or a radio to another loudspeaker.

According to an auxiliary characteristic aspect of the present invention, the memory 58 further stores the called terminal information set as the called party in advance for PTT communication, and the controller 55 may further include a PTT communication processing unit 554.

When a disaster occurrence detection signal is input from the disaster occurrence detection unit 57, the PTT communication processor 554 transmits a PTT communication request message including the called terminal information and the calling terminal information to the mobile communication network, and requests the PTT communication from the mobile communication network. When the message is received, the response message is transmitted to the mobile communication network.

In one embodiment, the called terminal information stored in the memory 58 may be terminal identification information or a wired terminal IP address. Accordingly, the loudspeaker of the present invention can communicate with a mobile phone and a management server through a PTT communication network or a VoIP communication network.

As described above, the loudspeaker according to the present invention is implemented to receive and output a disaster alarm signal, for example, from a radio, and thus does not need to be connected to a broadcasting device by wire.

In addition, the loudspeaker according to the present invention has a useful effect of wirelessly transmitting a signal input from the radio to another loudspeaker outside the communication range of the radio.

In addition, the loudspeaker according to the present invention is useful to be able to quickly handle emergency situations by alerting by radio (individual, group) and ringtone by calling the corresponding loudspeaker using a mobile communication terminal when there is an emergency and notification contents in a certain area. It works.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Could be. Therefore, the true scope of protection of the present invention should be defined only by the appended utility model registration claims.

Claims (10)

In a loudspeaker capable of communicating with a radio, the loudspeaker may be: A signal receiver for receiving a radio frequency RF signal from the radio through an antenna; A frequency supply unit for generating and supplying a local signal for a radio; A reception signal mixer for outputting a first radio IF signal by mixing the radio local signal and the radio RF signal received from the frequency supply unit and the signal receiver; And a reception signal converter for converting a first radio IF signal input from the reception signal mixer into a voice signal and a transmission signal converter for receiving a voice signal from the reception signal converter and converting the voice signal into a second radio IF signal. A controller; An amplifier for amplifying the audio signal input from the received signal converter and outputting the amplified voice signal to a speaker; A transmission signal mixer for outputting a radio frequency RF signal by mixing a second radio frequency IF signal input from the transmission signal converter and a local signal signal for the radio input from the frequency supply unit; A signal transmitter for amplifying a radio RF signal input from the transmission signal mixer and transmitting the radio signal to the outside through a radio antenna; A switching unit for selectively connecting any one of the signal transmitter and the signal receiver with a radio antenna according to a switching control signal input from the controller to a selection terminal; Loudspeaker comprising a. delete The loudspeaker of claim 1, wherein the loudspeaker is: A disaster occurrence detection unit detecting whether a disaster has occurred in the vicinity; A memory for storing an alarm message informing of a disaster alert; And an audio reproducing unit for reproducing the alarm message with an audible sound and outputting the amplified sound to the amplifier. The control unit: And an audio controller configured to control the audio reproducing unit to output an alarm sound signal corresponding to the input disaster occurrence detection signal when the disaster occurrence detection signal is input from the disaster occurrence detection unit. The loudspeaker of claim 3, wherein the transmission signal converter receives an alarm sound signal from the audio reproducing unit. In a loudspeaker capable of communicating with a cell phone and a radio, the loudspeaker is: A frequency supply unit for generating and supplying a local signal for a radio; A radio receiver for outputting a first radio IF signal by mixing a radio RF signal input from the radio through a radio antenna and a radio local signal input from the frequency supply unit; A mobile communication unit for transmitting and receiving a voice and data signal with a mobile communication network through a mobile communication antenna; A control unit including a voice call processing unit for converting and outputting a call sound into an audible signal among the signals input from the mobile communication unit, and a radio signal reception unit for converting a first radio IF signal input from the radio receiver into a voice signal. Wow; An amplifier for amplifying and outputting a voice signal input from the controller to a speaker; Loudspeaker comprising a. The method of claim 5, wherein the control unit: And a radio transmission signal conversion unit for receiving a voice signal from the radio reception signal conversion unit or the voice call processing unit and converting the audio signal into a second radio IF signal. The loudspeaker is: A transmission signal mixer for mixing a second radio IF signal input from the radio transmission signal converting unit and a radio local signal input from the frequency supply unit and outputting a radio frequency RF signal; a radio input from the transmission signal mixer A radio transmitter including a signal transmitter for amplifying an RF signal for transmission to an outside through a radio antenna; A switching unit for selectively connecting one of the radio transmission signal conversion unit and the radio reception signal conversion unit with a radio antenna according to a switching control signal input from the control unit to a selection terminal; Loudspeaker, characterized in that it further comprises. The loudspeaker of claim 6, wherein the loudspeaker is: A disaster occurrence detection unit detecting whether a disaster has occurred in the vicinity; A memory for storing an alarm message informing of a disaster alert; And an audio reproducing unit which reproduces the alarm message as an audible sound and outputs the amplification unit. The control unit: And an audio controller configured to control the audio reproducing unit to output an alarm sound signal corresponding to the input disaster occurrence detection signal when the disaster occurrence detection signal is input from the disaster occurrence detection unit. The loudspeaker according to claim 7, wherein the radio transmission signal conversion unit receives an alarm sound signal from the audio reproduction unit. The method of claim 7, wherein the memory further stores the destination terminal information previously set as the called party for PTT communication, When the controller detects a disaster occurrence detection signal from the disaster occurrence detection unit, the controller transmits a PTT communication request message including the called terminal information and the calling terminal information to a mobile communication network, and receives a PTT communication request message from the mobile communication network. Loudspeaker further comprises a PTT communication processor for transmitting a response message to the mobile communication network. The loudspeaker according to claim 9, wherein the called terminal information and the calling terminal information are terminal identification information or an IP address.

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