JP3071707B2 - Door-to-door receiver for disaster prevention - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention door-to-door receiver installed in each household in a municipal disaster prevention administration radio system, and more particularly to a disaster prevention broadcast according to a selective call signal transmitted from a master station device at the start of disaster prevention broadcast. The present invention relates to a disaster prevention door-to-door receiver that performs a receiving operation.

[0002]

2. Description of the Related Art As shown in FIG. 4, for example, as shown in FIG. 4, a municipal disaster prevention administrative radio system includes a master station device 1 installed at a municipal office or a municipal office and a disaster prevention door-to-door receiving device 2 installed at each home in each district. And an outdoor loudspeaker 3 installed outdoors in each district. When a disaster occurs, a selective call signal and disaster prevention information are transmitted from the master station device 1 and quickly transmitted to residents in the area via the disaster door-to-door receiving device 2 and the outdoor loudspeaker 3. Here, district a
, A disaster prevention door-to-door receiver 2a and an outdoor loudspeaker 3a are installed in the area b, and a disaster prevention door-to-door receiver 2b and an outdoor loudspeaker 3b are installed in the area b.

[0003] The disaster prevention door-to-door receiving apparatus used in such a municipal disaster prevention administrative radio system always receives a digital selective call signal transmitted by the master station before the start of voice broadcasting and monitors the calling area code. Then, when the reception area code coincides with the calling area code previously assigned to the receiving apparatus, the speaker is driven to transmit the audio broadcast. In addition, in order to be able to transmit information to a person who was absent at the time of broadcasting, a rebroadcast function is provided in the master station device, and a display function is provided for causing the disaster prevention door-to-door receiving device to receive the rebroadcast. .

For example, in a door-to-door receiver disclosed in Japanese Patent Application Laid-Open No. 61-099422, a display unit for displaying a broadcast type is provided, and the broadcast type is confirmed by turning on the display unit, and a rebroadcast reception switch is turned on. , So that a rebroadcast can be received. Also, Japanese Patent Application Laid-Open No. 3-074
According to Japanese Patent No. 933, the rebroadcast indicator is turned on when a rebroadcast advance notice signal is received from the master station, and turned off when a rebroadcast end signal is received. The display can be turned on and off reliably.

[0005]

However, in the former case of the above-mentioned conventional example, since the broadcast type must be confirmed by turning on the display unit, an error at the time of confirmation is likely to occur and lacks certainty. In the latter case, there is no indication regarding a broadcast type or the like other than the rebroadcast notice, so that there is a problem in that the operation is inflexible.

[0006] An object of the present invention is to display, by text, which area and what content is being broadcast,
It is an object of the present invention to provide a disaster-prevention door-to-door receiving apparatus having a display function capable of easily confirming a disaster prevention broadcast, eliminating the possibility of hearing disaster prevention information, and improving an information transmission rate.

[0007]

According to a first aspect of the present invention, there is provided a door-to-door receiving apparatus for disaster prevention, which performs an operation of receiving a disaster-preventing broadcast in response to a selective call signal transmitted from a master station apparatus at the start of a disaster-prevention broadcast. A call area code indicating a call target area and a broadcast type code indicating a broadcast type are included in the selective call signal. The door-to-door receiving apparatus receives the selective calling signal and outputs the calling area code and the broadcast type code, and character data indicating a district corresponding to the calling area code and a broadcast corresponding to the broadcast type code. Character data storage means for storing character data indicating a type in advance, display means for displaying character data in characters, and character data storage for character data corresponding to the calling area code and the broadcast type code output by the receiving means. And control means for reading from the means and displaying on the display means. In addition, a message code indicating a message to be displayed on the door-to-door receiving device is included in the selective call signal, and the character data storage unit stores in advance character data of a message corresponding to the message code, The means reads character data corresponding to the message code from the character data storage means and causes the display means to display the character data.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 4, for example, as shown in FIG. 4, a municipal disaster prevention administrative radio system includes a master station device 1 installed at a city office or a municipal office, a disaster prevention door-to-door receiving device 2 installed at a home in each district, and Outdoor loudspeaker 3 installed outside the district
And the disaster prevention door-to-door receiver 2a
And an outdoor loudspeaker 3a are installed, and a disaster prevention door-to-door receiver 2b and an outdoor loudspeaker 3b are installed in the area b.

When the master station apparatus 1 starts the disaster prevention broadcast,
After transmitting the selective calling signal, an audio signal of disaster prevention information is transmitted. The outdoor loudspeaker 3 loudspeaks the audio broadcast from the speaker when the outdoor loudspeaker 3 determines that the own device is the target by the selective calling signal.

The selective calling signal used in the present invention is, for example, as shown in FIG. 2, a calling area code indicating the area to be called, and whether the apparatus to be called is a disaster prevention door-to-door receiver or an outdoor loudspeaker. This is composed of call code data composed of a calling device type code indicating whether a call is made and a broadcast type code indicating a broadcast type. The calling area code is assigned the same number to the disaster prevention door-to-door receiver and the outdoor loudspeaker in the same area, and is different for each area. For example, the calling area code "100" is assigned to all of the disaster-prevention door-to-door receivers and the outdoor loudspeakers set in the area a, and the calling area code "010" is assigned to all of the disaster-prevention door-to-door receivers and the outdoor loudspeaker in the area b. ". The paging device type code is, for example, "10" to indicate a disaster prevention door-to-door receiver, "01" to indicate an outdoor loudspeaker, or "11" to indicate both a disaster prevention door-to-door receiver and an outdoor loudspeaker. Set as follows. The broadcast type code is set to, for example, “001” for an emergency broadcast, “011” for a normal broadcast, and the like.

FIG. 1 is a block diagram showing a door-to-door receiving apparatus 2 for disaster prevention. The receiving section 21 receives a broadcast wave from the master station apparatus 1 and outputs call code data Dc included in the received selective call signal. A decoder unit 22, a speaker 23 for transmitting a received voice signal, a collation data storage unit 24 for storing collation data for comparing and discriminating the call code data Dc, and character data to be displayed are stored in advance. A character data storage unit 25, a display unit 26 for displaying characters by character data, a timer 27 for generating time information, a code storage unit 28 for temporarily storing received call code data and time information, and the like; It has a CPU 29 for controlling each unit based on Dc, and an operation unit 30 for giving a control instruction to the CPU 29 from outside.

The character data storage unit 25 stores character data corresponding to each of a calling area code, a calling device type code, and a broadcast type code in advance. For example, “District a” and “District b” are character data corresponding to the calling area codes “100” and “010”, and “Disaster prevention door to door” are character data corresponding to the calling apparatus type codes “10” and “01”. “Emergency broadcast” and “Normal broadcast” are stored as character data corresponding to the broadcast type codes “001” and “011” in the “receiver” and the “outdoor loudspeaker”, respectively.

Here, the operation of the CPU 29 of the disaster prevention door-to-door receiving apparatus in the district a when an emergency broadcast to the disaster prevention door-to-door receiving apparatus in the area a is broadcast will be described.

In this case, as shown in FIG. 2, the call code data of the selective call signal transmitted by the master station device includes a call area code "100" indicating the area a and a call apparatus indicating a disaster prevention door-to-door receiving apparatus. It is composed of a type code "10" and a broadcast type code "001" indicating an emergency broadcast. The CPU 29 that has received such call code data Dc performs comparison and collation with the data stored in the collation data storage unit 24 to determine that the emergency broadcast has been transmitted to the disaster prevention door-to-door receiver in the area a. Determine. Then, control is performed such that an audio signal is transmitted from the receiving unit 21 to the speaker 23, and an audio broadcast that is broadcast following the selective calling signal is transmitted to the speaker 2.
3 to be transmitted.

The CPU 29 reads character data corresponding to the calling area code, the calling device type code, and the broadcast type code of the received call code data from the character data storage unit 25, and causes the display unit 26 to display them. That is, the character data “area a” corresponding to the calling area code “100” is read, the character data “disaster prevention door-to-door receiving apparatus” corresponding to the calling apparatus type code “10” is read, and the broadcast type code “0” is read.
The character data "emergency broadcast" corresponding to "01" is read out, and these characters are arranged and the character "Emergency broadcast is performed to the disaster-prevention door-to-door receiver in the area a" is displayed on the display unit 2.
6 is displayed. Further, the CPU 29 causes the code storage unit 27 to store the received call code data and the time information from the timer 28.

Next, when an emergency broadcast is broadcast to the disaster prevention door-to-door receiving device in the district b, the CPU 29 determines that the calling district code is the calling district code of another district b.
In this case, since the broadcast is for another area, the receiving unit 2
1 so that the audio signal is not transmitted from the speaker 23 to the speaker 23, so that the audio broadcast broadcast following the selective calling signal is not transmitted from the speaker 23. Also,
By referring to the character data storage unit 25, “district a
Emergency broadcasts are being made to the emergency door-to-door receivers. Is displayed on the display unit 26, and the received call code data and the time information from the timer 28 are stored in the code storage unit 27.

The CPU 29 reads the information stored in the code storage unit 27 in response to the operation of the operation unit 30 and displays the broadcast type, message, broadcast time, and the like on the display unit 26, Or erase the information stored in the. Also, the display unit 2 only displays during the period when the master station device is broadcasting.
When the broadcast is completed, the display is switched to, for example, "broadcast has occurred".

As described above, based on the call code data included in the selective call signal transmitted from the master station apparatus, it is determined which broadcast has been performed in which area, and a report is made by character display. By temporarily storing the call code data and displaying it again, it is possible to eliminate the possibility of hearing the disaster prevention information and improve the information transmission rate.

FIG. 3 shows the structure of a selective calling signal used as another embodiment. That is, it is composed of a calling area code, a calling device type code, a broadcast type code, and a message code indicating a message to be displayed.

The message code is a code of a message to be displayed on the disaster prevention door-to-door receiving apparatus.
The message sign of “Please evacuate in a hurry” is “001”, and the message sign of “Please evacuate in district a in a hurry” is “011”. On the other hand, the character data storage 25 of the door-to-door receiver for disaster prevention
, Display character data corresponding to the message code is stored in advance. For example, in correspondence with the message code “001”, the character data “Please evacuate immediately to district a” is stored, and the message code “01” is stored.
In response to "1", character data "Emergency broadcast to district b." Is stored.

Here, the operation of the CPU 29 of the disaster prevention door-to-door receiving apparatus in the district a when an emergency broadcast to the disaster prevention door-to-door receiving apparatus in the area a is broadcast will be described.

The CPU 29, which has received the call code data, determines that an emergency broadcast is transmitted to the disaster-prevention door-to-door receiver in the area a by comparing and collating with the data stored in the collation data storage unit 24. The audio signal is transmitted from the receiving unit 21 to the speaker 23, and the audio broadcast that is broadcast following the selective calling signal is transmitted to the speaker 2.
3 to be transmitted. Further, it recognizes the message code, refers to the character data storage unit 25, reads out the character data corresponding to the message code, and displays it on the display unit 26. Since the message code in this case is “001”, the character data corresponding to this code “Please evacuate immediately to district a” is read from the character data storage unit 25 and displayed. Further, the received call code data and the time information from the timer 28 are stored in the code storage unit 27.

When an emergency broadcast is broadcast to the disaster prevention door-to-door receiving apparatus in the area b, the CPU 29 of the disaster door-to-door receiving apparatus in the area a determines that the calling area code is the number of the other area b. And the speaker 23
Control so that no audio signal is sent to the Therefore, the audio broadcast that is broadcast after the calling signal is the speaker 2
3 is not sent. Also, since the message code in this case is “011”, the character data corresponding to this code “Emergency broadcast to district b” is read from the character data storage unit 25 and displayed on the display unit 26. At the same time, the received call code data and the time information from the timer 28 are stored in the code storage unit 27.

By expanding the message code, various information other than disaster prevention information can be transmitted by character display.

[0026]

As described above, according to the present invention, the predetermined call code data is included in the selective call signal transmitted from the master station device at the start of the disaster prevention broadcast, and based on this call code data, By displaying what kind of content is being broadcast to the district, even if it is being broadcast to other districts, it is possible to indicate that disaster prevention broadcasting is being performed and the broadcast type etc. It can be easily confirmed. In addition, by temporarily storing the call code data so that the characters can be displayed again, it is possible to prevent the disaster prevention information from being heard and to transmit the information reliably. Furthermore, by including a message code in the selective call signal, various information other than disaster prevention information can be transmitted by character display,
A wide range of information services becomes possible.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a door-to-door receiving apparatus for disaster prevention according to the present invention.

FIG. 2 is a diagram illustrating a configuration example of call code data included in a selective call signal transmitted from a master station device.

FIG. 3 is a diagram showing another example of the structure of the call code data included in the selective call signal transmitted from the master station device.

FIG. 4 is a configuration diagram illustrating an example of a municipal emergency management radio system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 master station device 1 2 disaster prevention door-to-door receiving device 21 receiving unit 22 decoder unit 23 speaker 24 verification data storage unit 25 character data storage unit 26 display unit 27 timer 28 code storage unit 29 CPU 30 operation unit Dc call code data

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-10-242873 (JP, A) JP-A-3-73620 (JP, A) JP-A-61-140229 (JP, A) JP-A-61-140229 140228 (JP, A) JP-A-10-173553 (JP, A) JP-A-10-173620 (JP, A) JP-A-9-214376 (JP, A) (58) Fields investigated (Int. Cl. ^7, DB name) H04B 1/16 H04Q 7/14 H04Q 7/34

Claims (4)

(57) [Claims] 1. A disaster-prevention door-to-door receiving apparatus for performing a disaster-prevention broadcast receiving operation in response to a selective-call signal sent from a master station apparatus at the start of a disaster-prevention broadcast, wherein the selective-call signal indicates a calling area and a calling area code. A broadcast type code indicating a broadcast type is included, and the door-to-door receiving apparatus receives the selective call signal and outputs the call area code and the broadcast type code, and a district corresponding to the call area code. Character data storage means for storing in advance character data indicating the broadcast type corresponding to the broadcast type code, display means for displaying the character data in character, and the calling area code and the broadcast output by the receiving means. Control means for reading character data corresponding to the type code from the character data storage means and displaying the character data on the display means. Door-to-door receiver for disaster prevention. 2. The selective calling signal includes a message code indicating a message to be displayed on a door-to-door receiving device,
The character data storage means stores in advance the character data of the message corresponding to the message code, and the control means reads the character data corresponding to the message code from the character data storage means and reads the character data to the display means. 2. The disaster prevention door-to-door receiving device according to claim 1, wherein the display is displayed. 3. A control device comprising: a code storage unit for temporarily storing a code output by the receiving unit; and an operating unit for instructing the control unit to perform an external control instruction, wherein the control unit outputs the output of the receiving unit. The code is temporarily stored in the code storage means, the code stored in the code storage means is read out in response to an instruction from the operation means, and the character data corresponding to the code is read out from the character data storage means and is displayed on the display means. The disaster prevention door-to-door receiving device according to claim 1 or 2, wherein the display is displayed. 4. A disaster prevention system according to claim 3, further comprising a timer for outputting time information, wherein said control means simultaneously stores said time information and said output of said receiving means in said code storage means. Door-to-door receiving device.