JP3167638U - Municipal disaster prevention radio system - Google Patents

Abstract

Disclosed is a municipal disaster prevention radio system that can secure data on variation in broadcast contents due to weather conditions. Signals from a communication satellite and a standard frequency station are input via an antenna 1 to a receiving unit 2 and a modem 3 for A / D converting the signal. A signal for operation confirmation by the standard frequency station is extracted from the time element 5 by the radio wave clock unit 4 via the modem 3 and sent to the control unit 10, and the instrumental music 6 is also mixed by the control unit 10. 11 is again A / D-converted and sent from the transmission unit 12 to the slave station, and at the same time, broadcasted in the government building by the in-house loudspeaker 14 via the amplification unit 13. In addition, an emergency signal from the communication satellite is extracted by the data processing unit 7 through the modem 3 and the J-ALERT information 8 is extracted and sent to the control unit 10, and the alarm 9 is also mixed by the control unit 10, It is broadcast into the office building by the in-office loudspeaker 14 via the amplifying unit 13, and simultaneously A / D converted by the modem 11 and transmitted from the transmitting unit 12 to the slave station. [Selection] Figure 1

Description

  The present invention relates to a scheduled test broadcast for confirming the operation of a master station and a slave station in a municipal disaster prevention radio system.

  Municipalities and disaster prevention wireless systems that broadcast a lot of life information over a wide area have been widely adopted by each municipality, such as in the event of a large-scale natural disaster or an emergency such as a missile attack from another country.

The municipal disaster prevention radio system transmits emergency information from the master station installed in the municipal office building and the scheduled instrumental music for operation check, and a loudspeaker installed outside the slave station that has received this, Broadcasts to local residents.

JP 2009-94689 A JP 2002-189485 A However, none of the municipalities' disaster prevention radio systems broadcast date information using a regular radio clock for confirming the operation.

  Broadcast by regular instrumental music for confirming the operation of outdoor loudspeakers is easy to hear because there are many high frequencies in the audible frequency range, but the emergency J-ALERT information is a low frequency in the audible frequency range because of human voice, that is, voice. From high to low frequencies, the broadcast contents may be difficult to hear due to changes in weather conditions such as wind direction, temperature, and rain.

Moreover, even if the data of the broadcast variation due to the weather conditions with the monitor installed is grasped, the operation confirmation is instrumental and the J-ALERT information is sound, so even if the data is collected, the range of the audible frequency is Due to the difference, there was no guarantee about the contents of the emergency broadcast that had actually caused a disaster.

In addition, because of the one-day broadcast of instrumental music that does not change, it has become a noise problem near the outdoor loudspeakers.

The present invention broadcasts date information following a chime for operation confirmation at an audio frequency similar to the audio frequency used for J-ALERT information, in order to secure data on the variation in the broadcast contents due to weather conditions. To do.

In addition, the noise problem due to the one-day broadcasting of daily patterns that does not change instrumental music can be reduced by broadcasting date information that changes from day to day.

Since the present invention is configured as described above, the following effects can be obtained.
First of all, by broadcasting by voice on time, it is possible to secure variation data due to changes in weather conditions, and it is possible to respond quickly such as increasing the volume and number of emergency broadcasts according to the weather conditions in the event of a disaster. .

  In addition, by broadcasting one-pattern broadcasts with regular instrumental music for operation confirmation, especially date information that changes every day for noise problems in the morning, the date and day of the week can be confirmed, and the troublesomeness of the test broadcast can be reduced. Become.

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a block diagram of a master station. Signals from a communication satellite and a standard frequency station are input via an antenna 1 to a receiver 2 and to a modem 3 for A / D conversion of the signal.

A signal for operation confirmation by the standard frequency station is extracted from the time element 5 by the radio wave clock unit 4 via the modem 3 and sent to the control unit 10, and the instrumental music 6 is also mixed by the control unit 10. 11 is again A / D-converted and sent from the transmitter 12 to the slave station, and at the same time, broadcasted in the government building by the in-office loudspeaker 14 via the amplifier 13.

In addition, an emergency signal from the communication satellite is extracted by the data processing unit 7 through the modem 3 and the J-ALERT information 8 is extracted and sent to the control unit 10, and the alarm 9 is also mixed by the control unit 10, It is broadcast into the office building by the in-office loudspeaker 14 through the amplifying unit 13, and simultaneously A / D converted by the modem 11 and transmitted from the transmitting unit 12 to the slave station.

  FIG. 2 shows a block diagram of the slave station. Both signals from the master station are input via the antenna 15 to the receiver 16 and to the modem 17 for A / D converting the signal.

An operation confirmation signal “chime-to-date information” 18 is sent to the controller 20 via the modem 17, and is broadcast on a wide area by the outdoor loudspeaker 22 via the amplifier 21 on a regular basis by the controller 20. Is.

  As an example of the signal 18, a chime and voice such as “Ping-Pong-Pan… Today is April 1st, Friday ... Ping-Pong Pong” are broadcast.

Further, the emergency signal “Siren + J-ALERT information” 19 is sent to the controller 20 via the modem 17, and the operation check signal is stopped by the controller 20 and the amplifier 21. Is broadcasted by the outdoor loudspeaker 22 over a wide area.

  As an example of the signal 19, a siren and a voice such as "U-U-U -... an earthquake having a seismic intensity of 5 or more has been predicted ... U-U-U-" are broadcast.

  FIG. 3 shows the elevation of the slave station, which is an antenna 15, a controller 20, an outdoor loudspeaker 22 and a support 23.

  By broadcasting date information that changes from day to day in the scheduled test broadcast for operation confirmation, the date and day of the week can be confirmed, noise problems due to inconvenience of broadcasting are reduced, and data of voice variation due to changes in weather conditions By securing, it will be possible to respond quickly such as increasing the volume and frequency of emergency broadcasts according to the weather conditions in case of emergency.

It is a figure which shows the block of the master station of a municipalities disaster prevention radio system. It is a figure which shows the block of the substation of a municipalities disaster prevention radio system. It is a figure which shows the elevation of the slave station of a municipalities disaster prevention radio system.

DESCRIPTION OF SYMBOLS 1 Antenna 2 Receiving part 3 Modem 4 Radio wave clock part 5 Time element 6 Instrumental music 7 Data processing part 8 J-ALERT information 9 Alarm 10 Control part 11 Modem 12 Transmitting part 13 Amplifying part 14 Office loudspeaker 15 Antenna 16 Receiver 17 Modem 18 chime + date information 19 siren + J-ALERT information 20 controller 21 amplifier 22 outdoor loudspeaker 23 prop

Claims (1)

In the municipal disaster prevention radio system, in order to perform scheduled test broadcasts for operation confirmation, the master station is equipped with a receiver that receives radio signals from standard frequency stations, radio clock time elements and instrumental music from the received radio signals. The control unit to be selected, the transmission unit that transmits the date information and instrumental chime of the time element selected by the control unit, and the slave station that has received the date information and chime A controller for discriminating that the signal is for operation confirmation, an amplifier for amplifying the signal discriminated by the controller, and a date and time information is broadcast over a wide area following the chime by a loudspeaker. Disaster prevention radio system.

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