JP2022187463A - Disaster prevention character display system - Google Patents

Abstract

To provide a disaster prevention character display system which can transmit character information and is easily used even in a disaster.SOLUTION: A disaster prevention character display system 1 comprises a distribution terminal 10 equipped with a communication section 110 which can originate notification information including character information with the use of a radio communication technique of LPWA (Low Power Wide Area); and reception terminals 20 each of which is equipped with a communication section 210 which can receive the notification information originated from the distribution terminal 10 with the use of the radio communication technique of LPWA, and a display section 230 which displays the character information in the notification information received by the communication section 210.SELECTED DRAWING: Figure 1

Description

The present invention relates to a disaster prevention character display system.

2. Description of the Related Art Conventionally, there have been proposed receivers for receiving disaster prevention radio broadcasts issued by government agencies such as municipalities and emergency warning broadcasts issued by broadcasting stations. For example, Patent Document 1 discloses a broadcast receiving circuit that receives a broadcast signal, an emergency warning receiving circuit that receives an emergency warning signal, and a disaster prevention radio receiving circuit that receives a disaster prevention radio signal. A receiver provided with a changeover switch for switching and outputting each circuit is disclosed.

Further, Patent Document 2 discloses a receiver that is equipped with a receiving unit for receiving emergency earthquake information from a transmission station and is capable of displaying character data consisting of fixed sentences corresponding to area names included in the emergency earthquake information. there is

Japanese Patent No. 4745281 Japanese Patent No. 6427437

For administrative notices and information on disasters, etc., it is desirable that the receiver be able to obtain text information in consideration of support for people with hearing disabilities and support in environments where it is difficult to hear voices due to noise, etc. . If it can be received as character information, it can be easily applied such as automatically reading out the character information for the visually impaired, saving the history of notified information, and the like.

Considering the use in the event of a disaster, it is also necessary to assume that a large-scale power outage will cause the Internet and mobile phone communication networks to become unusable.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a disaster prevention character display system that can transmit character information and is easy to use even in the event of a disaster.

The disaster prevention character display system of the present invention includes a distribution terminal including a communication unit configured to transmit notification information including character information using LPWA (Low Power Wide Area) wireless communication technology; and a receiving terminal comprising a communication unit configured to be able to receive the notification information transmitted using the wireless communication technology of No. 1, and a display unit for displaying the character information in the notification information received by the communication unit. have.

According to the present invention, it is possible to provide a disaster prevention character display system that can transmit character information and is easy to use even in the event of a disaster.

BRIEF DESCRIPTION OF THE DRAWINGS It is a system block diagram which shows the disaster prevention character display machine system which concerns on 1st Embodiment of this invention. It is a block diagram showing a delivery terminal of the disaster prevention character display system according to the first embodiment of the present invention. It is a block diagram showing a receiving terminal of the disaster prevention character display system according to the first embodiment of the present invention. It is a front schematic diagram showing the appearance of the receiving terminal of the disaster prevention character display system according to the first embodiment of the present invention. FIG. 4 is a sequence flow diagram among a disaster prevention base station, a mail API, a Pub/SubAPI and a distribution terminal in the disaster prevention character display system according to the first embodiment of the present invention; FIG. 2 is a schematic diagram showing an example of an e-mail sent from a disaster prevention base station in the disaster prevention character display system according to the first embodiment of the present invention; It is a list which shows the correspondence of an information level, a classification, a command, and voice notification in the disaster prevention character indicator system concerning a 1st embodiment of the present invention. It is a system block diagram which shows the disaster prevention character display machine system which concerns on 2nd Embodiment of this invention. FIG. 9 is a block diagram showing a delivery terminal of the disaster prevention character display system according to the second embodiment of the present invention; FIG. 10 is a flowchart showing the flow of processing of the voice recognition system of the disaster prevention character display system according to the second embodiment of the present invention; It is a figure which shows the input state of the voice of the disaster-prevention character display machine system which concerns on 2nd Embodiment of this invention. It is a diagram showing the processing contents of the speech recognition system of the disaster prevention character display system according to the second embodiment of the present invention, (a) shows an example of a two-phrase pattern, (b) is a pattern for the output of the speech recognition unit 4 shows how a matching processing unit performs processing;

(First embodiment)
Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 , the disaster prevention character display system 1 has a distribution terminal 10 and a plurality of reception terminals 20 . The distribution terminal 10 is connected to the Internet 40 . A mail server 41 and a time server 42 are connected to the Internet 40 . The mail server 41 has a mail API 411 and a Pub/Sub API 412 . On the other hand, the distribution terminal 10 and the plurality of reception terminals 20 are capable of communicating with each other using LPWA (Low Power Wide Area) wireless communication technology. In this embodiment, among LPWA, wireless communication of the LoRa (registered trademark) modulation method, which is easy to install equipment and has a relatively long transmission distance, is adopted, but LPWA of another method is adopted. can also The disaster prevention base station 30 is, for example, a city hall or the like, and is a base station that transmits notification information including character information in which various types of information such as communication items regarding disaster prevention and areas are expressed in characters.

An outline of the operation of the disaster prevention character display system 1 will be described. The disaster prevention base station 30 transmits notification information including character information describing local notices and disaster prevention information by e-mail to a predetermined destination (arrow EM1 in FIG. 1, hereinafter, the arrow symbol in FIG. 1 is simply written in parentheses). The distribution terminal 10 accesses the mail server 41 via the Internet 40 and acquires the e-mail transmitted from the disaster prevention base station 30 (EM2). The Pub/Sub API 412 of the mail server 41 can perform Pub/Sub type communication. Acquisition of the e-mail in the distribution terminal 10 is triggered by a change notification (PS1) by the Pub/Sub API 412 . The distribution terminal 10 uses the LPWA wireless communication technology to transmit the notification information acquired by e-mail (LW1).

The receiving terminal 20 receives the notification information transmitted from the distribution terminal 10 using the LPWA wireless communication technology, and displays character information included in the notification information. Also, the receiving terminal 20 transmits the received notification information using the LPWA wireless communication technology (LW2, LW3). Then, the receiving terminals 20 that have not received the notification information (LW1) transmitted from the distribution terminal 10 can also receive the notification information (LW2, LW3).

The delivery terminal 10 is installed, for example, in a public institution such as a school in a municipality or a public hall. A plurality of distribution terminals 10 can be provided in the same disaster prevention character display system 1 . On the other hand, the receiving terminal 20 is installed in each home, workplace, or the like. Here, in general, LPWA wireless communication technology is easily affected by buildings and topography. However, in the disaster prevention character display system 1, the receiving terminal 20 also transmits while receiving the notification information, so that even the receiving terminal 20 that does not receive the transmission (LW1) by LPWA from the distribution terminal 10 can transmit the notification information. can be received (LW2, LW3).

FIG. 2 is a block diagram showing the configuration of the distribution terminal 10. As shown in FIG. The distribution terminal 10 has a control section 100 , a communication section 110 , a storage section 120 and a clock section 140 . The control unit 100 is a CPU (also called a computer or processor) that controls each unit. The storage unit 120 is composed of a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The control unit 100 expands the application program stored in the ROM of the storage unit 120 into the RAM and executes it.

The control unit 100 can save and accumulate the acquired e-mails in the storage unit 120 . Further, the control unit 100 converts the data of the notification information acquired by e-mail so that it can be transmitted by the LPWA wireless communication technology. The control unit 100 adds a nationwide local government code to the destination during this data conversion. As a result, it is possible to transmit notification information in a limited area.

The clock unit 140 is equipped with an RTC (real time clock) IC chip or the like, and has a function of outputting the current time. The control unit 100 can acquire the time from the time server 42 via the Internet 40 from the communication unit 110 and synchronize the time of the clock unit 140 with the acquired time. Accurate time is used for log management in the distribution terminal 10 and the like. Also, by synchronizing the time with the time server 42, it is possible to confirm the life and death of the distribution terminal 10 from the access history.

Communication unit 110 has Internet connection unit 111 , LPWA connection unit 112 , and maintenance terminal connection unit 113 . Internet connection unit 111 connects to Internet 40 . Acquisition of e-mail from the disaster prevention base station 30 , acquisition of time from the time server 42 , and transmission of confirmation of receipt of time acquisition are performed via the Internet connection unit 111 . The LPWA connection unit 112 uses the LPWA wireless communication technology to transmit the notification information data-converted by the control unit 100 . Transmission using LPWA can be encrypted to prevent interception and hacking.

The maintenance terminal connection unit 113 is formed to be connectable to a PC (personal computer) by wire. The distribution terminal 10 can be maintained and inspected using a wired PC, and notification information can be input to the distribution terminal 10 directly from the PC.

FIG. 3 is a block diagram showing the receiving terminal 20. As shown in FIG. The receiving terminal 20 includes a control unit 200, a communication unit 210, a storage unit 220, a display unit 230, an audio output unit 240, an operation unit 250, and an FM radio tuner 260 as a broadcast reception unit for receiving broadcast signals. and have The control unit 200 is a CPU (also called a computer or processor) that controls each unit. The storage unit 220 is composed of ROM (Read Only Memory), RAM (Random Access Memory), and the like.

The control unit 200 performs data conversion so that the character information included in the notification information acquired by the LPWA can be displayed on the display unit 230 (liquid crystal panel 231). Then, the control unit 200 can store and accumulate the data-converted notification information in the storage unit 220 . A device address is set for the receiving terminal 20 and stored in the storage unit 220 . The device address can use the nationwide local government code defined by the Ministry of Internal Affairs and Communications. Thereby, it is possible to receive only the notification information from the distribution terminal 10 in the target area without receiving the notification information transmitted from the distribution terminals 10 in other areas.

As shown in the schematic external view of the receiving terminal 20 in FIG. The key switch 251 includes up, down, left, and right arrow keys 252 and an enter button 253 arranged in the center of the arrow keys 252 . The display unit 230 includes a liquid crystal panel 231 and LEDs 232 . An operation screen displayed on the liquid crystal panel 231 of the display unit 230 can be operated by operating the key switch 251 of the operation unit 250 . For example, arbitrary notification information can be selected and displayed from the notification information stored and accumulated in the storage unit 220 . Also, the LED 232 included in the display unit 230 emits light at an appropriate timing such as the timing at which notification information is received.

Also, the control unit 200 can control each unit based on the command included in the acquired notification information. For example, the FM radio tuner 260 can be activated by setting it to a predetermined frequency, or sound can be produced through the speaker provided in the audio output unit 240 .

Communication unit 210 has LPWA connection unit 211 . The LPWA connection unit 211 can receive notification information transmitted from the distribution terminal 10 using the LPWA wireless communication technology, and can transmit the received notification information using the LPWA wireless communication technology. The notification information transmitted from the receiving terminal 20 is received by other receiving terminals 20 that have not yet received the notification information.

Next, the operation until the delivery terminal 10 receives the e-mail sent from the disaster prevention base station 30 will be described with reference to the sequence flow diagram of FIG. First, the delivery terminal 10 registers a notification topic in the Pub/Sub API 412 in order to receive a notification topic indicating that there has been a change (reception) in the mailbox of the mail server 41 at startup (ST01). In this embodiment, the mail server 41 is set as a Publisher and the delivery terminal 10 is set as a Subscriber, and by using an asynchronous pull request that can continuously wait for a response, the Pub/Sub API 412 is frequently It makes it possible to retrieve messages in near real time without sending a pull request. Therefore, the delivery terminal 10 regularly makes a delivery request (asynchronous pull request) to the Pub/Sub API 412 of the mail server 41 (ST02).

When the disaster prevention base station 30 such as a city hall transmits notification information to residents, etc., first, the disaster prevention base station 30 transmits the notification information to a predetermined mail address (mail server 41) using an e-mail (ST03). . The mail API 411 that has detected the change in the mailbox of the mail server 41 transmits the notification topic to the Pub/Sub API 412 (ST04). Pub/SubAPI 412 then transmits the notification topic to delivery terminal 10 (ST05).

The delivery terminal 10, which has received the notification topic that the mailbox of the mail server 41 has changed (received), transmits predetermined authentication information to the mail API 411 (ST06), and (ST07).

The distribution terminal 10 to which the notification information is input by the electronic mail in this way performs data conversion by the control unit 100 so that the notification information can be transmitted by LPWA. The data-converted notification information is transmitted via the LPWA connection section 112 .

FIG. 6 shows an e-mail creation screen 300 as an example of an e-mail that the disaster prevention base station 30 transmits as notification information. For the e-mail, a commonly used mailer or the like can be used. In the example of FIG. It has an input field 302, a subject input field 303 in which a subject can be input, a body text input field 304 in which a mail text can be input, and a send button 305. In text entry field 304, characters (disaster prevention character information) to be displayed on display unit 230 (liquid crystal panel 231) of receiving terminal 20 are entered.

Here, in the subject entry field 303, in addition to the subject, a command can be entered in a predetermined format surrounded by "%". The receiving terminal 20 can be controlled by this command. This command corresponds to "notification level" and "type" as described in the list shown in FIG. The "notification level" expresses the level of the content of the notification information (disaster prevention text information) by a numerical value. "Type" represents the type of "notification level". Among the "types", "general information" is information related to local information such as local living information. "Disaster prevention information" is information about disasters and disaster prevention. An "emergency alert" is an emergency alert associated with danger to life and body. "Emergency alert" is an alert issued based on an emergency alert issued by a predetermined agency.

"INFO", "NOTICE", "WARN", and "ALERT" in the command are set according to the notification level (type), and the control unit 200 outputs sound so that the receiving terminal 20 produces sound according to the type. This is a type command that controls the unit 240 . In response to these type commands, sounds indicated by "notification sound" in the list are pronounced.

Among the commands, "FMS" is also a broadcast reception command for activating the FM radio tuner 260, which is the broadcast reception unit. When specifying an FM radio frequency, enter a predetermined FM radio frequency (for example, 0795 when receiving 79.5 MHz) following the command "FMS". When the receiving terminal 20 receives the notification information including the "FMS" command, the receiving terminal 20 activates the FM radio tuner 260 so as to receive the broadcast signal of the frequency (numerical value) input following the "FMS" command. If "FMS0000" is specified, the FM radio activated by the command is turned off. Also, the receiving terminal 20 can switch to the disaster prevention administrative radio broadcasting by using the broadcast receiving command received from the distribution terminal 10 as a trigger. Therefore, the FM radio tuner 260 can be used as a single tuner.

The command "MFS" (standard sentence command) is a command for specifying disaster prevention character information in a standard sentence. It is displayed on the display unit 230 (liquid crystal panel 231) of the receiving terminal 20. FIG. A standard sentence can be specified by specifying a two-digit number following the "MFS" command. In this case, any character string entered in the text input field 304 in FIG. 6 is ignored. The standard text is registered in advance in the storage unit 220 of the receiving terminal 20, and by specifying it with a command + number such as "MFS18", "A sudden rise in temperature is expected. Be careful of illness.” can be displayed on the display unit 230 (liquid crystal panel 231) of the receiving terminal 20. Also, by inputting a character surrounded by "#" to the "MFS" command, it is possible to insert the character surrounded by "#" into a predetermined portion of the fixed phrase.

In addition, fixed phrases can be registered in the storage unit 220 in different languages for individual receiving terminals 20 . As a result, fixed phrases can be displayed and/or automatically read aloud in Chinese for Chinese residents and in Portuguese for Brazilian residents, making it possible to support multilingualization of notification information. .

Also, "LANG" is a command for specifying a language (language specifying command), and only the receiving terminals 20 whose language matches the language specified by the command "LANG" with the individual receiving terminals 20 whose language is set in advance in the storage unit 220 are notified. A command that enables the reception of information. For example, if there is notification information to be announced only to Chinese residents, by specifying command + number such as "LANG03", the disaster prevention character information entered in Chinese in text input field 304 in FIG. It can be delivered only to the receiving terminal 20 whose language is set to Chinese. If the command is not specified, it is handled as notification information for all receiving terminals 20 regardless of the language setting.

The list shown in FIG. 7 is stored in storage section 220 of receiving terminal 20 . The receiving terminal 20 that has received the notification information including at least the notification level and the command outputs a predetermined chime sound or siren indicated as “notification sound” and a predetermined sound from the speaker of the sound output unit 240 .

In this embodiment, notification information is input from the disaster prevention base station 30 to the distribution terminal 10 using e-mail via the Internet 40. It is also possible to input notification information directly from a PC to the distribution terminal 10 by connecting with a wire. In this case, even if the communication network of the Internet 40 goes down due to an earthquake or power outage, the notification information can be distributed to each receiving terminal 20 .

Also, in preparation for power outages, etc., the distribution terminal 10 may be provided with an uninterruptible power supply, and it is preferable that the reception terminal 20 be formed so as to be driven by a battery. As a result, even if a power outage occurs due to a disaster, the notification information can be accurately transmitted to the local residents.

According to the above-described embodiment, the disaster prevention character display system 1 uses the LPWA wireless communication technology from the distribution terminal 10 to transmit notification information including character information, and the character information is displayed on the reception terminal 20 . Since the notification information can be transmitted from the distribution terminal 10 to the plurality of reception terminals 20 using LPWA, which is driven with low power consumption, without using the Internet 40, telephone lines, etc., even if a power failure occurs in the event of a disaster, text The disaster prevention character display system 1 can transmit information and is easy to use even in the event of a disaster.

Since the disaster prevention character information related to the notification information obtained by the receiving terminal 20 is character information (that is, text data), the information is displayed on the display unit 230 for the visually impaired and is stored in the storage unit 220 separately. It can be easily pronounced by automatic reading by an application program or the like. By including a command (type command) in the notification information, the user can be notified by voice that the notification information is being received at an early timing when the reception of the notification information is started.

In addition, since the notification information can be input to the distribution terminal 10 using familiar e-mail, the notification information can be sent using not only a PC but also a mobile terminal such as a smart phone. Since the delivery terminal 10 receives the notification of the change in the mail server 41 and receives the e-mail through Pub/Sub type communication, it is possible to input the notification information to the delivery terminal 10 almost in real time. In this embodiment, asynchronous Pull is used for Pub/Sub communication with the delivery terminal 10, but it is obvious that Push-type Pub/Sub communication may be used.

In addition, the mail system used as means for inputting notification information from the disaster prevention base station 30 to the distribution terminal 10 sends a message to the mail address registered in advance in the storage unit 120 when an abnormality occurs in the distribution terminal 10. It can also be used as a means of notifying an abnormality through the mail API 411 to the addressee. As a result, downtime of the disaster prevention character display system 1 can be shortened, and the system can be stably operated.

In addition, since the receiving terminal 20 can retransmit the notification information received using LPWA using LPWA, even if the receiving terminal 20 is installed in a place where it is difficult to reach from the distribution terminal 10, the information can be relayed. Notification information can be transmitted by

(Second embodiment)
Next, a second embodiment of the invention will be described with reference to FIGS. 8 to 12. FIG. The disaster prevention character display system 1A of the present embodiment includes a voice recognition system, and converts the input voice information related to the disaster prevention broadcast into character information to provide notification information. In the following description, the same reference numerals are used for the same devices, parts, and locations as in the first embodiment, and the description thereof will be omitted or simplified.

A disaster prevention character display system 1A shown in FIG. In place of the transmission/reception (EM1, EM2) of the above, the disaster prevention radio receiver 31 for receiving the disaster prevention radio broadcast from the city hall or the like is configured to input voice to the delivery terminal 10A. The Internet 40 is also connected to a speech recognition unit 43 that analyzes input speech and outputs text data.

As shown in FIG. 9, the delivery terminal 10A has a voice input section 114 in the communication section 110 . The voice input unit 114 is connected to the disaster prevention radio receiver 31 and receives voice information. The control unit 100 transmits audio information input via the audio input unit 114 (that is, audio information related to broadcasts such as disaster prevention broadcasts broadcast from the city hall, etc.) from the Internet connection unit 111 via the Internet 40, as shown in FIG. is input to the speech recognition unit 43 shown in FIG. The text data output by the speech recognition unit 43 is input to the distribution terminal 10A via the Internet 40 and the Internet connection unit 111, and processed by the pattern matching processing unit of the control unit 100. FIG. The voice recognition system of the disaster prevention character display system 1A has a voice recognition section 43 and a pattern matching processing section provided in the distribution terminal 10A.

Next, processing contents of the speech recognition system will be described based on FIGS. 10 to 12. FIG.
Speech recognition unit 43 waits for input of speech input trigger signal 310 shown in FIG. Recognition processing of voice information is performed (step S03). The voice recognition unit 43 outputs the input voice information as text data (recognition text) (step S04). The recognized text output by the speech recognition unit 43 is input to the distribution terminal 10A via the Internet 40 and stored in the storage unit 120 (step S04).

The speech recognition process in step S03 is performed for each clause. Accordingly, in step S04, the recognition text output from the speech recognition unit 43 and stored in the delivery terminal 10A is also for each clause. The recognized text stored in the storage unit 120 is processed by the pattern matching processing unit of the distribution terminal 10A (steps S05 to S07).

In the example shown in FIG. 11, first, "From Hamura City Hall" is input to the voice recognition unit 43 as the voice information 320, and voice recognition processing is performed (step S03). Then, text1 "From Hamura City Hall" is output as a recognized text (text data) and input to the distribution terminal 10A.

Here, the processing of the pattern matching processing unit (<2-clause word pattern match?> processing (step S05)) compares the previous and current 2-clauses in the recognition text (text data) output by the speech recognition unit 43. set to target. Therefore, at this point, there is still only one clause, so <2 clause word pattern match? > The process (step S05) proceeds to "N", and the recognized text text1 "From Hamura City Hall" is stored in the storage unit 120 (step S07).

Next, when "I will inform you" is input to the speech recognition unit 43 as the voice information 320, text2 "I will inform you" is output as the recognized text (text data) and input to the distribution terminal 10A (step S04). ). Then, the pattern matching processing unit compares the previous two phrases and the current two phrases in the recognized text (text data) output by the speech recognition unit 43, and stores them in the storage unit 120 to create two phrase patterns 330 including wildcards. (see FIG. 12(a)).

Here, a two-clause pattern 330 shown in FIG. 12(a) is stored in the storage unit 120 in advance. The two-clause pattern 330 is stored as a pattern consisting of two clauses. A pattern 1 (reference numeral 331) of the two-clause pattern 330 consists of two clauses "from **** city hall/I will let you know". Here, "****" is a wild card, and is a portion that is not compared with the text data output by the speech recognition unit 43. FIG.

The pattern 2 (reference numeral 332) of the two-clause pattern 330 consists of two clauses, "this is / disaster prevention ****". "****" is a wild card similar to the above.

The pattern matching processing unit performs <2 clause word pattern match? > In the process (step S05), the previously recognized text 1 "From Hamura City Hall" and the currently recognized text 2 "I will let you know" are compared with the two-sentence pattern 330. . The pattern matching processing unit determines that both match. Then, the pattern matching processing unit replaces the wildcard (“***”) in the pattern 1 (reference numeral 331) with “Hamura”, which is the specific character information separately stored in the storage unit 120, to obtain 2 Phrase character information "From Hamura City Hall/I will let you know" is generated. The pattern matching processing unit replaces the generated two-phrase character information with the previous and current two phrases (text1 "From Hamura City Hall" and text2 "I will let you know") to be compared, and stores them in the storage unit 120. (Step S07).

It should be noted that the specific character information can be the area name (city, ward, town and village name) of the area where the distribution terminal 10A is installed.

In this way, the pattern matching processing unit uses two clauses (previous and current clauses) in the recognition text (text data) output by the speech recognition unit 43 as objects for comparison, and stores them in the storage unit 120 as wildcards "*". If both match, the wild card "****" of the two-clause pattern 330 is replaced with the specific character information to generate the two-clause character information. Then, two phrases (previous and current phrases) in the recognized text (text data) output by the speech recognition unit 43 to be compared are replaced with the generated two phrase character information.

Therefore, compared with the first embodiment of the present invention in which the disaster prevention radio broadcast is typed and sent by e-mail, it is possible to convert the disaster prevention radio broadcast into text and notify the residents, etc., without typing. Then, it is possible to accurately transmit the specific information such as the name of the area that identifies which area the disaster prevention information is for, which is important information, to the residents and the like.

For example, when the output from the speech recognition unit 43 is "Baifu Tamura" (text15 part in FIG. 12B), the pattern matching processing unit recognizes the pattern 2 (reference numeral 332) and the text14 "here". and text15 "I'm Bosai Tamura." can be memorized.

In this way, the flow of FIG. 10 is repeatedly processed for each clause, and after generating the notification information, the distribution terminal 10A transmits the notification information to each receiving terminal 20 using the LPWA wireless communication technology.

Although the present embodiment of the present invention has been described above, the present invention is not limited to this embodiment and can be implemented with various modifications.

1 disaster prevention character display system 10 distribution terminal 20 reception terminal 30 disaster prevention base station 40 Internet 41 mail server 42 time server 100 control unit 110 communication unit 111 Internet connection unit 112 LPWA connection unit 113 maintenance terminal connection unit 120 storage unit 140 clock unit 200 Control unit 210 Communication unit 211 LPWA connection unit 220 Storage unit 230 Display unit 231 Liquid crystal panel 232 LED 240 Audio output unit 250 Operation unit 251 Key switch 252 Arrow keys 253 Decision button 260 FM radio tuner 300 Creation screen 301 Sender display field 302 Destination input Field 303 Subject input field 304 Text input field 305 Send button 411 Mail API
412 Pub/Sub API
1A disaster prevention character display system 10A distribution terminal 31 disaster prevention radio receiver 43 voice recognition unit 114 voice input unit 310 voice input trigger signal 320 voice information 330 2 clause pattern 331 pattern 1 332 pattern 2

Claims (14)

a distribution terminal including a communication unit configured to transmit notification information including character information using LPWA (Low Power Wide Area) wireless communication technology;
a communication unit configured to receive the notification information transmitted from the distribution terminal using LPWA wireless communication technology; and a display unit configured to display the character information in the notification information received by the communication unit. a receiving terminal;
A disaster prevention character display system comprising: 2. The disaster prevention character display system according to claim 1, wherein said notification information is input to said distribution terminal using electronic mail. 3. The disaster prevention character display system according to claim 2, wherein said distribution terminal is configured to be able to receive a reception notification from a mail server that has received said e-mail through Pub/Sub type communication. 4. The disaster prevention character display system according to any one of claims 1 to 3, wherein said distribution terminal is formed to be connectable to a PC (personal computer) by wire. 5. The disaster prevention character display system according to claim 1, wherein said notification information comprises a command for controlling said receiving terminal. The receiving terminal has a broadcast receiving unit that receives a broadcast signal,
6. The disaster prevention character display system according to claim 5, wherein said command includes a broadcast reception command for activating said broadcast receiver to receive said specific broadcast signal. 7. The disaster prevention character display system according to claim 6, wherein the receiving terminal can switch to the disaster prevention administrative radio broadcast triggered by the broadcast reception command received from the distribution terminal. The receiving terminal has a voice output unit that pronounces voice,
8. The disaster prevention character display system according to any one of claims 5 to 7, wherein the command includes a type command for controlling the voice output unit to produce a sound corresponding to the type. 9. The disaster prevention character display system according to any one of claims 5 to 8, wherein said notification information is input to said distribution terminal using an e-mail having said command in a subject line. The command includes a fixed phrase command specifying a number corresponding to a predetermined fixed phrase, and the receiving terminal reads the fixed phrase in a language registered in the receiving terminal according to the number specified by the fixed phrase command. 10. The disaster prevention character display system according to any one of claims 5 to 9, wherein the sentence is displayed on the display unit and/or read out by voice by a voice output unit provided in the receiving terminal. 10. The disaster prevention character display system according to any one of claims 1 to 9, wherein the communication unit of the receiving terminal is configured to transmit the notification information using LPWA wireless communication technology. . 12. The disaster prevention character display system according to any one of claims 1 to 11, characterized in that the distribution terminal can notify a pre-registered e-mail address of the information detected by the self-diagnosis of an abnormality through an e-mail API. . 13. The disaster prevention character display system according to any one of claims 1 to 12, wherein said notification information is generated using a speech recognition system that converts voice information into said character information. The speech recognition system has a speech recognition unit provided on the Internet and a pattern matching processing unit provided in the distribution terminal,
The pattern matching processing unit compares two phrases in the text data output from the speech recognition unit as comparison targets with two phrase patterns including wildcards stored in the storage unit, and if both match, replaces the wildcard and specific character information of the two-phrase pattern to generate two-phrase character information, and replaces the two-phrase and the two-phrase characters in the text data output by the speech recognition unit to be compared. replace the information with
14. The disaster prevention character display system according to claim 13, characterized by:

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