JP6712251B2 - Emergency disaster broadcast system, emergency disaster broadcast receiving terminal, emergency disaster broadcast transmitting method, emergency disaster broadcast receiving method, emergency disaster broadcast receiving program, computer-readable recording medium or recorded device - Google Patents

Description

The present invention relates to an emergency disaster broadcast broadcasting system, an emergency disaster broadcast receiving terminal, an emergency disaster broadcast transmitting method, an emergency disaster broadcast receiving method, an emergency disaster broadcast receiving program, a computer-readable recording medium or a recorded device, for example, a hotel. Concerning emergency disaster broadcast broadcast for.

In the event of a disaster such as an earthquake, fire, tsunami, or landslide, it is extremely important to send emergency disaster information to users. Especially in a closed environment such as a hotel, users staying in each room do not necessarily watch TV, etc., and even in such a case, the emergency disaster information should be distributed to everyone. However, it is extremely important from the viewpoint of ensuring the safety of users.

Conventionally, in-house broadcasting has been used, but in this case, if the user is a tourist or business traveler from overseas, there is a problem that the broadcast content in Japanese cannot be understood. Particularly in recent years, the number of foreign visitors is increasing, as represented by the inbound consumption and the Tokyo Olympics, and it is extremely important to consider sufficient safety considerations for such visitors. However, for example, people who speak English, Chinese, Korean, etc. may not always be resident in the broadcast at the time of a disaster, and comparisons such as in the case of visitors from other countries such as Northern Europe and South America It is even more difficult to deal with minor languages. On the other hand, in general, it is not always possible to reliably deliver emergency disaster broadcasts to users in each room only by using the in-house broadcasts.For example, do not pay attention to in-building broadcasts due to reasons such as when using a shower, on the phone, and due to hearing. There is also a possibility.

On the other hand, it is possible to distribute the emergency disaster information by wire or wireless to terminals such as televisions and monitors arranged in each room. However, in the event of a disaster, there may be situations in which the radio wave condition deteriorates, the wire cable is broken, or information cannot be distributed due to a power failure. It is also possible to distribute information to information terminals such as tablets using wireless LAN such as WiFi, but in the event of a disaster it becomes difficult to connect due to excessive server access etc. If this is not possible, there is a problem that this method cannot be used either. Especially in Japan, large-scale earthquakes such as the Great East Japan Earthquake and the Kumamoto Earthquake have occurred in rapid succession, and it is said that there are many earthquake disasters from overseas. It can be said that there is an urgent need to realize an environment where people can safely stay by appealing to ensure safety such as guidance.

JP, 2005-079492, A

The present invention has been made in view of such a background, and one of the objects thereof is an emergency disaster broadcast broadcast system capable of more reliably delivering emergency disaster information to a user in a facility such as a hotel. , Emergency disaster broadcast receiving terminal, emergency disaster broadcast transmitting method, emergency disaster broadcast receiving method, emergency disaster broadcast receiving program, computer-readable recording medium or recorded device.

Means for Solving the Problems and Effects of the Invention

According to the emergency disaster information broadcasting system according to the first aspect of the present invention, the emergency disaster information broadcasting system for broadcasting the emergency disaster information to the receiving terminals installed in each part of the hotel is provided. Therefore, by connecting to the department speaker for in-house broadcasting installed in the department that sends the emergency disaster information and the department speaker, the signal related to the emergency disaster information is transmitted as an acoustic signal from the department speaker. An information transmission source for directional communication, and a receiving terminal installed in each part for transmitting emergency disaster information, wherein the receiving terminal includes a microphone for receiving an acoustic signal from the speaker for the part, and the microphone. In a state in which an acoustic signal can be detected, the acoustic signal received by the microphone is analyzed, and the acoustic signal is used as a trigger to output pre-specified emergency disaster information, and the receiving terminal. The terminal-side secondary battery unit for supplying electric power for driving, and a user of the receiving terminal, a language selection unit for switching the operating language to a plurality of different languages, the receiving terminal of the The output unit includes a display unit, and the display unit can display emergency disaster information including the language selected by the language selection unit, and the information transmission source and the local speaker are the power sources in the hotel. It is connected to a power supply of a system different from the system, the receiving terminal is configured so as not to shift to a sleep mode for stopping the standby operation of the acoustic signal by the microphone, the acoustic signal, It includes an emergency disaster broadcast sound reproduced from the information source through the department speaker, and a superimposed signal at least partially superimposed on the sound and capable of being analyzed by the receiving terminal side to decode the emergency disaster information. There is. With the above configuration, by using the acoustic signal, in other words, by not using the radio wave, the acoustic signal can be delivered to each part even without a wireless communication environment such as WiFi. Moreover, by making the local speaker system different from the normal power system such as commercial power system, it can be used even during a power failure, and more reliable emergency disaster information can be broadcast.

According to the emergency disaster information broadcasting system of the second aspect of the present invention, in addition to the above configuration, the emergency disaster information displayed on the display unit includes the language selected by the language selection unit. can you to can be displayed in a bilingual or more.

Further, according to the emergency disaster information broadcasting system according to the third aspect of the present invention, in addition to any of the above configurations, the acoustic signal can be a signal including an inaudible range and an audible range .

Furthermore, according to the emergency disaster information broadcasting system according to the fourth aspect of the present invention, in addition to any one of the above configurations, a voice watermark signal is used for a superimposed signal superimposed on the voice of the emergency disaster broadcast. it can. With the above configuration, it is possible to add arbitrary information to the normal voice guidance by using the voice watermark technology, and it is also possible to synchronize with the voice guidance signal. The voice guidance from the speaker for each department and the reception terminal It is possible to synchronize the reproduction data.

Furthermore, according to the emergency disaster information broadcasting system according to the fifth aspect of the present invention, in addition to any of the above configurations, the acoustic signal is reproduced from the information transmission source through the department speaker. It is possible to include a voice of the emergency disaster broadcast and a trigger signal, which is time-divisionally distributed with the voice, capable of being analyzed by the receiving terminal side and decoding the emergency disaster information.

Furthermore, according to the emergency disaster information broadcasting system according to the sixth aspect of the present invention, in addition to any one of the above configurations, the receiving terminal further reproduces the emergency disaster information recorded in advance at the output unit. When a sound signal from the speaker for the department is detected by the microphone, the reproduction data of the emergency disaster information held in the storage unit is output as the trigger signal. It can be configured to play in part. With the above-described configuration, the distribution process can be simplified, and the decoding process and the like can be greatly simplified on the receiving terminal side as well, so that there is an advantage that the process can be performed with a light load.

Furthermore, according to the emergency disaster information broadcasting system according to the seventh aspect of the present invention, in addition to any of the above configurations, the receiving terminal holds a plurality of different emergency disaster information in the storage unit in advance. Therefore, the acoustic signal includes reproduction data type information that specifies which of the plurality of different emergency disaster information should be reproduced, and the acoustic signal from the department speaker is detected by the microphone. Then, by using this as a trigger signal and a selection signal, the corresponding reproduction data can be selected from the reproduction data of the emergency disaster information held in the storage unit and reproduced by the output unit. With the above configuration, a plurality of different types of disaster information can be output, or the same type of disaster information can be output in different languages, which has the advantage that more emergency disaster information can be output on the receiving terminal side with a light load. can get.

Furthermore, according to the emergency disaster information broadcasting system according to another aspect of the present invention, in addition to any one of the above configurations, the plurality of different emergency disaster information includes at least one of a fire, an earthquake, a tsunami, and a landslide disaster. Can be included.

Furthermore, according to the emergency disaster information broadcasting system according to another aspect of the present invention, in addition to any one of the above configurations, the reproduction data output from the output unit displays the emergency disaster information in a plurality of languages. The text information can be included.

Furthermore, according to the emergency disaster information broadcasting system according to another aspect of the present invention, in addition to any of the above configurations, the output unit of the receiving terminal includes a terminal-side speaker, and the output unit The output reproduction data may include audio information that reads out emergency disaster information in a plurality of languages.

Furthermore, according to the emergency disaster information broadcasting system according to another aspect of the present invention, in addition to any one of the above configurations, the receiving terminal can select a display language, and the display language can be selected in the selected display language. The language of the reproduction data output by the output unit can be selected accordingly.

Furthermore, according to the emergency disaster information broadcasting system according to another aspect of the present invention, in addition to any one of the above configurations, the output unit of the receiving terminal includes a display unit, and outputs from the output unit. The reproduced data can include a moving image in which the emergency disaster information displayed on the display unit is displayed in sign language. With the above configuration, it is possible to convey emergency disaster information to a deaf user.

Furthermore, according to the emergency disaster information broadcasting system according to another aspect of the present invention, in addition to any one of the above configurations, the receiving terminal is set to a sleep mode in which the standby operation of the acoustic signal by the microphone is stopped. It can be configured to prohibit migration.

Furthermore, according to the emergency disaster information broadcasting system according to another aspect of the present invention, in addition to any of the above configurations, the information transmission source and the local speaker can be connected to a storage battery.

Furthermore, according to an emergency disaster information broadcasting system according to another aspect of the present invention, in addition to any one of the above configurations, the information source and the local speaker are used as an emergency broadcast facility compliant with the Fire Service Act. it can.

Furthermore, according to the emergency disaster information broadcasting system according to another aspect of the present invention, in addition to any of the above configurations, a room where the room speaker is installed can be a guest room.

Furthermore, according to the emergency disaster information broadcasting system according to the eighth aspect of the present invention, in addition to any of the above configurations, a DTMF signal can be superimposed as the acoustic signal.

Furthermore, according to the emergency disaster information broadcasting system according to the ninth aspect of the present invention, in addition to any of the above configurations, a signal in an inaudible region can be superimposed as the acoustic signal.

Furthermore, according to the emergency disaster information receiving terminal according to another aspect of the present invention, the emergency disaster information receiving terminal is installed in each part of the hotel and receives emergency disaster information. A microphone for receiving an acoustic signal from a speaker for a department installed in a transmitting section connected to a storage battery, and a standby state in which the acoustic signal can be detected by the microphone, and the acoustic signal received by the microphone is analyzed. And using the acoustic signal as a trigger, an output unit for outputting pre-specified emergency disaster information, a terminal-side secondary battery unit for supplying electric power for driving the receiving terminal, and use of the receiving terminal A language selection unit for switching a language to be operated by a person to a plurality of different languages, the output unit includes a display unit, and in the display unit, the language selected by the language selection unit. It is possible to display the emergency disaster information including the. With the above configuration, by using the acoustic signal, in other words, by not using the radio wave, the acoustic signal can be delivered to each part even without a wireless communication environment such as WiFi. In addition, by using the local speaker as a system different from a normal power system such as a commercial power source, it can be used even in the event of a disaster, and more reliable emergency disaster information can be broadcast.

Furthermore, according to the emergency disaster information receiving terminal according to another aspect of the present invention, in addition to the above configuration, the emergency disaster information displayed on the display unit includes a language selected by the language selection unit. It can be displayed in more than one language.

Furthermore, according to the emergency disaster information broadcasting method according to another aspect of the present invention, the emergency disaster information broadcasting for broadcasting the emergency disaster information to the receiving terminals respectively installed in each part of the hotel. A method for encouraging a user of the receiving terminal to switch the language operated by the language selection unit to a plurality of different languages, and a department installed in a department transmitting emergency disaster information and connected to a storage battery A step of transmitting a signal related to emergency disaster information as an acoustic signal from a speaker through an information transmission source which is also connected to a storage battery, and a microphone for receiving an acoustic signal from the department speaker, which is provided in the receiving terminal. A step of detecting an acoustic signal, analyzing the acoustic signal received by the microphone, and using the acoustic signal as a trigger, pre-specified emergency disaster information in a display unit included in the output unit of the receiving terminal, wherein the language is And displaying emergency disaster information including the language selected by the selection unit. Accordingly, by using the acoustic signal, in other words, by not using the radio wave, it is possible to deliver the acoustic signal to each part even without a wireless communication environment such as WiFi. In addition, by using the local speaker as a system different from a normal power system such as a commercial power source, it can be used even in the event of a disaster, and more reliable emergency disaster information can be broadcast.

Furthermore, according to the emergency disaster information broadcasting method according to another aspect of the present invention, in addition to the above, the emergency disaster information displayed on the display unit includes a language selected by the language selection unit. It can be displayed in more than one language.

Furthermore, according to the emergency disaster information reception program according to another aspect of the present invention, the emergency disaster information is installed in the receiving terminals installed in each part of the hotel and receives the emergency disaster information broadcast. An information receiving program, which has a function of allowing a user of the receiving terminal to switch the language operated by the language selecting section to a plurality of different languages, and a section installed at a section for sending emergency disaster information and connected to a storage battery In order to receive an acoustic signal from a required speaker, a standby function that waits in a state where the acoustic signal can be detected by a microphone provided in the receiving terminal, and an acoustic signal received by the microphone are analyzed, and the acoustic signal is used as a trigger. The display unit may be provided with an output function of displaying, in the display unit, the emergency disaster information defined in advance, the emergency disaster information including the language selected by the language selection unit. With the above configuration, by using the acoustic signal, in other words, by not using the radio wave, the acoustic signal can be delivered to each part even without a wireless communication environment such as WiFi. In addition, by using the local speaker as a system different from a normal power system such as a commercial power source, it can be used even in the event of a disaster, and more reliable emergency disaster information can be broadcast.

Furthermore, according to the emergency disaster information broadcasting program according to another aspect of the present invention, in addition to the above configuration, the emergency disaster information displayed on the display unit includes the language selected by the language selection unit. It can be displayed in two or more languages.

Furthermore, a computer-readable recording medium or a stored device according to another embodiment stores the above program. The recording medium includes CD-ROM, CD-R, CD-RW, flexible disk, magnetic tape, MO, DVD-ROM, DVD-RAM, DVD-R, DVD+R, DVD-RW, DVD+RW, Blu-ray (registered. Trademark, UHD BD (trade name), HD DVD (AOD: trade name), and other magnetic disks, optical disks, magneto-optical disks, semiconductor memories, and other media capable of storing programs. In addition to the programs stored in the recording medium and distributed, the programs include programs distributed by downloading through a network line such as the Internet. Further, the stored device includes a general-purpose device or a dedicated device in which the above program is implemented in a form such as software or firmware in an executable state. Furthermore, each process or function included in the program may be executed by computer-executable program software, or the process of each unit may be executed by hardware such as a predetermined gate array (FPGA, ASIC) or program software. And a partial hardware module that realizes a part of the hardware may be mixed.

It is a schematic diagram which shows the emergency disaster information broadcasting system which concerns on Embodiment 1 of this invention. It is a block diagram which shows a receiving terminal. It is an image figure which shows the example which displayed the character information on the display part, when a receiving terminal received emergency disaster information. It is an image figure which shows the example which displayed the sign language by the moving image when a receiving terminal received emergency disaster information. It is an image figure which shows an example of the language selection screen of a receiving terminal. 6A is a timing chart showing an example of transmitting an acoustic signal to a receiving terminal, FIG. 6B is an example of alternately transmitting an acoustic signal and voice guidance, and FIG. 6C is a timing chart showing an example of transmitting voice guidance with an acoustic signal superimposed. 7 is a block diagram showing a receiving terminal according to the second embodiment. FIG. It is an image figure which shows an example of the main screen of a receiving terminal. It is an image figure which shows an example of the disaster countermeasure explanation screen of a receiving terminal. It is a schematic diagram which shows the emergency disaster information broadcasting system which concerns on a modification. It is a graph which shows the spectrum waveform of the voice data of emergency disaster information. 12 is a graph showing a spectrum waveform of cut voice data obtained by cutting the frequency component of DTMF from the voice data of FIG. 11. It is a graph which shows the spectrum waveform which added all the low group tone and high group tone of a DTMF signal. 13 is a graph showing a spectrum waveform of an acoustic signal in which the DTMF signal of FIG. 13 is superimposed on the cut voice data of FIG. 12. It is a schematic diagram which shows the example which applied the emergency disaster information broadcasting system outdoors. It is a schematic diagram which shows the example which applied the emergency disaster information broadcasting system to the monitor screen of the street.

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below are examples for embodying the technical idea of the present invention, and the present invention is not limited to the following. In addition, the present specification does not specify the members described in the claims to the members of the embodiments. Unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the components described in the embodiments are not intended to limit the scope of the present invention thereto, but are merely descriptions. It's just an example. The sizes and positional relationships of members shown in the drawings may be exaggerated for clarity of explanation. Further, in the following description, the same names and reference numerals indicate the same or similar members, and detailed description thereof will be appropriately omitted. Further, each element constituting the present invention may be configured such that a plurality of elements are configured by the same member and one member also serves as a plurality of elements, or conversely, the function of one member is performed by a plurality of members. It can be shared and realized.

The connection between the emergency disaster information broadcasting system used in the embodiment of the present invention and the computer, printer, external storage device and other peripheral devices connected to the emergency disaster information broadcasting system for operation, control, display and other processing, For example, serial connection such as IEEE 1394, RS-232x, RS-422, RS-423, RS-485, USB, parallel connection, or electrical connection via a network such as 10BASE-T, 100BASE-TX, 1000BASE-T, or Communicate by connecting magnetically and optically. The connection is not limited to a physical connection using a wire, but may be a wireless connection using wireless LAN such as IEEE802.1x, Bluetooth (registered trademark), radio waves such as NFC, infrared rays, optical communication, or the like. Further, a memory card, a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like can be used as a recording medium for exchanging data and storing settings. In the present specification, the emergency disaster information broadcasting system is used not only to mean the main body of the data distribution device but also to the emergency disaster information broadcasting system in which peripheral devices such as a computer and an external storage device are combined.
(Embodiment 1)

FIG. 1 shows an emergency disaster information broadcasting system 1000 according to the first embodiment of the present invention. Here, an example is shown in which a hotel is used as a facility for installing the emergency disaster information broadcasting system 1000. The emergency disaster information broadcasting system 1000 shown in this figure includes an information transmitting device 200 for transmitting emergency disaster information, and a plurality of receiving terminals 100 installed in each department. The information transmission device 200 includes an information transmission source 210 connected to an emergency power supply 230 and a department speaker 220 installed in each department. The information transmission source 210 is installed in a room that can be centrally managed, such as a front desk or a management room in a hotel. On the other hand, the local speaker 220 is a destination to which the emergency disaster information is to be distributed, a guest room in a hotel, a lobby, a waiting room, an elevator or other landing, a part of a corridor, or the like. In the following example, the department speaker 220 installed in each room of the guest room will be described as a typical example. The receiving terminal 100 can be arranged in each guest room or lobby, but in the following example, the receiving terminal 100 installed in each room of the guest room will be described as a typical example. That is, it is assumed that the receiving terminal 100 is arranged at the site where the department speaker 220 is placed. More precisely, it is assumed that the receiving terminal 100 is arranged in an area where the acoustic signal emitted by the local speaker 220 can be picked up. That is, it is not always necessary to install a room speaker in each room. For example, a room speaker 220 is installed in a corridor CR as shown in FIG. 10, and a room speaker is provided in a room RM. It suffices that the receiving terminal 100 installed in each room RM can detect the acoustic signal emitted from the local speaker 220 in the corridor even in the absence of the signal.
(Information source 210)

The information transmission source 210 is a member that is connected to the department speaker 220 and transmits a signal related to emergency disaster information from the department speaker 220 as an acoustic signal. Specifically, it is a facility for delivering sound such as voice guidance, music, and audio signals to the hall, and a system for broadcasting in the hall can be used. In the event of a disaster, this information source 210 is used as a voice guidance from the speaker 220 for the department, such as "A fire has occurred. Please calm down and evacuate." At the same time, as an emergency disaster information signal emitted from the department speaker 220, information such as the occurrence of a similar disaster, the start of evacuation, the evacuation route, etc. is broadcasted to the receiving terminal 100 by text, voice, video or the like. In addition, as a method of encoding a signal related to emergency disaster information as an acoustic signal, any method can be used (details will be described later).

A power supply for driving the information transmission source 210 and the local speaker 220 is connected to a power supply of a system different from a normal commercial power supply used as a power supply system in the facility. The emergency power source 230 is preferable. As a result, even if a power failure occurs in the event of a disaster, it becomes possible to operate the information transmission source 210 and the local speaker 220 driven by the emergency power supply 230. In addition, the receiving terminal 100 uses a portable electronic information terminal including a secondary battery, such as a general-purpose tablet, so that the receiving terminal 100 operates for a certain period of time without a power source. Furthermore, the connection between the information transmission source 210 and the receiving terminal 100 does not use radio waves such as a wireless LAN such as WiFi, but uses an acoustic signal using the local speaker 220, so that the wireless LAN can be used during a power failure. Even if it becomes unusable, it is possible to broadcast emergency disaster information. In particular, in the present system, bidirectional communication is not necessary, and only one-way distribution from the information transmission source 210 to each receiving terminal 100 side is sufficient. Therefore, it is possible to realize with a simple interface using a speaker and a microphone 102. Is obtained.

In addition, as compared with the case where the broadcast transmission function for smartphones using the BLE (Bluetooth Low Energy) standard such as i-Beacon (trade name) and EddyStone (trade name) is used, the wireless LAN is as described above. Since it does not require a connection by radio waves like the above, it can be used even in an environment without a network connection or a power source. Furthermore, in the above, it is premised that BLE can be used. For example, a terminal that does not permit Bluetooth communication or In the first place, it cannot be used in a terminal that does not support BLE, which is the latest Bluetooth standard, such as an old tablet, but in the above embodiment, it can be used if only a microphone is provided.

In the example of FIG. 1, a storage battery is used as the emergency power source 230. In general, accommodation facilities such as hotels are required to be equipped with a backup power source to operate an in-house broadcasting system in an emergency. For example, an information transmission source 210 and a local speaker 220 are provided as an emergency broadcasting facility based on the Fire Service Act. In other words, by using the emergency power supply 230 already installed in each hotel and the system for in-house broadcasting connected to it, an emergency disaster that can operate even during a power outage without investing new equipment There is an advantage that an information broadcasting system can be introduced. Although the emergency power source 230 such as a storage battery is arranged in the same part as the information transmission source 210 in the example of FIG. 1, it is not always necessary to arrange it in the same part, and the emergency power source 230 may be arranged in another part. It goes without saying that they may be arranged.
(Receiving terminal 100)

An example of the configuration of the receiving terminal 100 is shown in the block diagram of FIG. The receiving terminal 100 shown in this figure includes a microphone 102, a control unit 110, a storage unit 104, a terminal-side secondary battery unit 130, and an output unit 120. As such a receiving terminal 100, a portable information terminal that can be driven by a secondary battery, such as a general-purpose tablet, a phablet, or a smartphone, can be used.

The microphone 102 is a member for receiving an acoustic signal from the local speaker 220. An existing mobile information terminal such as a tablet is generally provided with a microphone 102 in advance, and this can be used as it is. The storage unit 104 is a storage element for holding predetermined information, and a storage medium such as a ROM, SSD, hard disk, SD card (registered trademark), or the like can be used. The terminal-side secondary battery unit 130 is a battery for driving the receiving terminal 100, and a lithium-ion secondary battery or the like can be preferably used.

The control unit 110 stands by in a state in which the acoustic signal from the microphone 102 can be detected. Then, when the microphone 102 receives the acoustic signal, the output unit 120 outputs the emergency disaster information defined in advance by using the acoustic signal as a trigger. Therefore, the control unit 110 includes an acoustic signal extraction unit 112 for extracting and analyzing the acoustic signal. The encoding and decoding of the acoustic signal, the frequency range, and the like may be the specifications of the standardized acoustic signal or may be the original specifications. Further, the control unit 110 includes a data communication unit 118 for wirelessly transmitting/receiving data to/from an external device. The data communication unit 118 uses the IEEE802. X and other standardized or proprietary communication methods are used for data communication with external devices. The existing tablet includes a wireless LAN such as WiFi and a communication interface such as 3G and LTE.

Further, the control unit 110 maintains the standby state so that the microphone 102 always performs the standby operation of the acoustic signal. In other words, the setting is such that the operation of the microphone 102 such as the power saving mode and the sleep mode is stopped. Therefore, to prevent the user from accidentally operating the setting screen to shift to the sleep mode, prohibit access to the setting screen that permits the shift to the sleep mode or access the setting screen. It is preferable to make settings such as requiring administrator authority.

The output unit 120 includes a display unit 122 and a terminal-side speaker 124. The display unit 122 is a display included in the receiving terminal 100, and a liquid crystal display, an organic EL, or the like can be used. Preferably, a touch panel can also be used as the input unit of the receiving terminal 100.

The emergency disaster information output from the predetermined output unit 120 may be displayed on the display unit 122 with a message such as "A disaster has occurred. Please calm down and evacuate." Examples thereof include a mode in which the moving image shown is reproduced, a similar sound is reproduced from the terminal-side speaker 124, and the like. The voice output from the terminal-side speaker 124 includes, for example, a method of mechanically reading the text information displayed on the display unit 122 in real time using a text-to-speech function, a method of reproducing voice data prepared in advance, and the like. Available.

As an example of the emergency broadcast screen 12 for displaying the emergency disaster information on the display unit 122, character information 1 of a still image is shown in FIG. 3, and an example of displaying sign language as a moving image 2 is shown in FIG. 4, respectively. By displaying the sign language in this way, it becomes possible to convey the emergency disaster information to the deaf person. Further, in order to call attention, it is possible to appropriately combine prominent display modes such as turning on a vibrator of the receiving terminal 100, turning on a flashlight, blinking a screen, and highlighting. Further, the moving image and the text information may be displayed together. Furthermore, the text information may be displayed not only in one language such as Japanese but also in a plurality of languages such as English and Chinese. As a result, even for users who cannot understand Japanese, it is possible to notify the emergency disaster information in characters in multiple languages. Further, if the text information is missed like the voice guidance or forgets the heard contents, it is possible to look back and confirm the contents.
(Language selection unit 114)

The control unit 110 also includes a language selection unit 114. The language selection unit 114 is a member for switching the language for operating the tablet. As an example of the language selection unit 114, the language selection screen 10 is displayed on the display unit 122, for example, as shown in FIG. 5, and the user is allowed to select a desired language. As a result, even a visitor from abroad can switch to a language that he or she can understand, and can easily operate the receiving terminal 100. Preferably, the language selection screen 10 is the initial screen of the receiving terminal 100. As a result, the user can use the receiving terminal 100 in a state in which the language has been selected first, so that confusion of the operation is avoided and smooth use is promoted. Further, according to the language selected by the language selection unit 114, the language of the emergency disaster information is also automatically switched by the control unit 110 so as to be output in the selected language. By performing such a language setting in advance, it is possible to prevent the user from being panicked by being output in a language that the user cannot understand at the time of a disaster, and smooth use of emergency disaster information in an emergency can be achieved. In particular, conventional emergency disaster information was in Japanese only, or because Japanese was the initial value, it was not uncommon for overseas visitors to be confused at the hotel. By selecting the language of the receiving terminal 100 before use, such inconvenience can be eliminated and the convenience of the user can be improved due to the multilingualization. In the example of the language selection screen 10 of FIG. 5, language selection buttons 10a, 10b, 10c, and 10d for selecting any of four languages of Japanese, English, Chinese, and Hangul are arranged. Not limited to this, other languages, for example, 5 or more languages can be selected, or conversely, 3 or less languages may be selected.

In order to cope with such multilingualization, it is preferable that the emergency disaster information has information in a plurality of languages in advance. Then, according to the language selected by the language selection unit 114, when the emergency disaster information is output, the language is output in the language.
(Acoustic signal)

The signal related to the emergency disaster information is delivered to each receiving terminal 100 as an acoustic signal through the speaker 220 for the department. As a method of providing emergency disaster information, a case of broadcasting in real time through the department speaker 220 and a case where a plurality of emergency disaster information are held in advance on the receiving terminal 100 side, and only the selection signal thereof is transmitted through the department speaker 220. A method of outputting the corresponding emergency disaster information from among the plurality of emergency disaster information held on the side of each receiving terminal 100 by broadcasting in real time is given. The former is adopted in the first embodiment. The latter will be described later as a second embodiment. In the latter case, the audio signal broadcast to the receiving terminal 100 through the department speaker 220 is not the emergency disaster information itself, but a selection signal indicating which one is selected from a plurality of emergency disaster information. Therefore, in the present specification, such a selection signal is also included in the signal regarding the emergency disaster information.

Various modes are conceivable as to how the acoustic signal is emitted from the department speaker 220. An example thereof is shown in FIGS. 6A to 6C. FIG. 6A is an example in which only acoustic signals are sent from the local speaker 220. In this case, when the distribution of the emergency disaster information is started, only the acoustic signal is played from the local speaker 220 in each room, so that the receiving terminal 100 installed in each room sends this signal to the terminal-side speaker 124. Upon receipt, the emergency signal information is decoded by the acoustic signal extraction unit 112 and output from the output unit 120. The decrypted extracted emergency disaster information is displayed on the display unit 122 as text information, still image information, or a moving image such as sign language, or a voice is output from the speaker 124 on the terminal side to indicate "a fire has occurred. Please use the passage A as the evacuation route. Do not use the passage B because a fire has occurred."

Acoustic signals are signals in the inaudible range and the audible range. The signal is preferably in the inaudible range that cannot be heard by humans. By reproducing the acoustic signal that cannot be heard by the human ears with the local speaker 220, the user can receive the necessary emergency disaster information distribution without feeling discomfort. Note that the acoustic signal does not necessarily need to be entirely contained in the inaudible range, and a part thereof may be in the audible range. As a typical example of the local speaker 220, for example, when the dynamic range of the speaker installed in a hotel is narrow, the reproducibility in the high frequency range is poor, or the like performance is not sufficient, only the signal in the non-audible region is used on the receiving terminal side. Since the recognition rate may decrease, the stability of recognition can be improved by including the audible range. When the acoustic signal is superimposed on the voice signal of the voice guidance, the acoustic signal can be a signal embedded in the audible region and inaudible to the human ear. As an acoustic signal using inaudible sound (high frequency of several hundred kHz to several MHz), for example, the communication system of ADSL modem can be used. However, it does not prohibit the adoption of a communication method for the audible band. For example, a communication method standardized by ITU-T used for analog-digital modulation of a modem or ITU-T recommendation Q. 24 (Dual-Tone Multi-Frequency: DTMF) can be used.

Also, the emergency disaster information can be distributed at the same time as the voice guidance. FIG. 6B shows an example in which normal voice guidance and acoustic signals are alternately broadcast. In particular, in the event of a disaster, it is common to use a broadcasting system within the hotel to inform the hotel hall by voice (“The fire has occurred. Please calm down and evacuate.”, etc.). In this case, by delivering the audio signal in a time-division manner while performing the voice guidance, the normal voice guidance and the distribution of the emergency disaster information for the receiving terminal 100 can be performed while using the common in-house broadcasting system. Can be done at the same time.

Further, as a method of delivering the emergency disaster information at the same time as the voice guidance, it is also possible to superimpose a signal relating to the emergency disaster information with an acoustic signal on the voice guidance signal. An example of this is shown in FIG. 6C. With this method, it is possible to output emergency disaster information from the receiving terminal 100 without any time lag while providing voice guidance in the in-house broadcast. Further, with this method, it is possible to synchronize the voice guidance that is output from the local speaker 220 with the emergency disaster information displayed on the receiving terminal 100 at hand. For superimposing the audio signal, a voice watermark technology in which the audio signal is incorporated in the audio guidance so that the user cannot perceive the audio signal can be applied in addition to the simultaneous reproduction with the audio guidance. For example, UD Cast (trade name) of Palabra Co., Ltd., INFOSOUND (trade name) of Yamaha, or the like can be used. Alternatively, a voice fingerprint technique may be applied. The voice fingerprint is a digital voice signal processing technique in which the characteristics of a voice waveform are electronically extracted from an original digital sound source and treated as data (fingerprint) smaller than that of the original sound source. By comparing the reference fingerprint with the master, it becomes possible to specify the content.

In addition, other electronic acoustic watermarks such as voice watermarks are echo hiding methods (Daniel Gruhl, Anthony Lu Walter Bender, “Echo Hiding,” Proc. Information Hiding 1st Workshop, pp.295-315, Cambridge Univ., 1996). , Periodic phase modulation method (Japanese Patent No. 3627022), echo diffusion method (Takahashi et al., 2005), spectrum diffusion method (Boney et al., 1996; Iwakiri et al., 1998), method based on psychoacoustic model (Nakayama et al. , 2000), a method based on octave similarity (Matsumura, Arakawa, 2004), amplitude modulation masking (Nishimura, 2006), a digital audio watermark based on cochlear delay (Patent No. 5004094), and the like. Generally, the specifications required for audio watermarks are the imperceptibility of not being aware that watermark information is embedded, the confidentiality that only authorized people can detect watermark information, and the robustness that can be detected even after signal transformation processing. However, in the emergency disaster information broadcasting system, these specifications, especially imperceptibility and confidentiality, are not essential. Therefore, without using a voice watermark, for example, an acoustic signal having no imperceptibility or concealment is used as a trigger signal for outputting emergency disaster information or a selection signal for selecting one of a plurality of emergency disaster information. Can be used.
(Output of emergency disaster information using DTMF)

Here, as an example, in the emergency disaster information broadcasting system of FIG. 1, an example in which the DTMF signal as an acoustic signal is superimposed on the voice guidance of the emergency disaster information and the emergency disaster information is broadcast to the receiving terminal will be described with reference to FIG. ~ It demonstrates based on FIG. Here, DTMF (Dual-Tone Multi-Frequency) is also called tone signal or push signal, and is a number from 0 to 9 and a total of 16 types of symbols *, #, A, B, C, D. Is transmitted as a synthesized signal sound in the following two audio frequency bands of a low group tone and a high group tone.
Low group tone: 697Hz, 770Hz, 852Hz, 941Hz
High group tone: 1209Hz, 1336Hz, 1477Hz, 1633Hz
Generally, one tone is combined from each of the four types of specific frequencies of the low group tone and the four types of specific frequencies of the high group tone. For example, the DTMF signal indicating the dial "6" is composed of a 770 Hz tone and a 1477 Hz tone.

First, prepare voice data of emergency disaster information to be played from the department speaker. For example, following the chime, "We will inform you of emergency disaster information. A fire has occurred. Please evacuate. Please use the A passage for the evacuation route. Please do not use the B passage because there is a fire." ..." and other messages are read aloud and recorded. FIG. 11 shows an example of the spectrum waveform of the audio data at this time.

Next, the cut voice data in which the frequency band used in DTMF is cut is generated from the voice data. For example, a band pass filter or the like is used to cut a total of eight frequency components of the low group tone and the high group tone. As an example, FIG. 12 shows a spectrum waveform of the cut voice data obtained by cutting the frequency component of DTMF from the voice data of FIG.

On the other hand, the sound data to be superimposed is generated. Here, using the DTMF signal as the acoustic data, one of 0 to 9, *, #, A, B, C, and D is selected, and the tone signal corresponding to this is selected by combining the low group tone and the high group tone. Express. For the sake of explanation, FIG. 13 shows a spectrum waveform in which all of the low group tone and the high group tone are added. When actually used as a DTMF signal, any one of the four low group tones and any one of the four high group tones are selected to represent the signal by these combinations. As described above, the DTMF signal standard can represent 16 types (4 bits) of 0 to 9, *, #, A, B, C, and D.

Then, the acoustic data is superposed on the cut voice data as a superposition signal. As an example, FIG. 14 shows a spectrum waveform of an acoustic signal in which the DTMF signal of FIG. 13 is superimposed on the cut voice data of FIG. Note that, in FIG. 14, all the low-group tones and the high-group tones are displayed for the sake of explanation. Only books.

The acoustic signal thus obtained is broadcast from the information transmission source 210 through the local speaker 220. The receiving terminal 100 arranged in each room is driven by the terminal-side secondary battery unit 130 as shown in FIG. The control unit 110 is in a standby state so that the microphone 102 always performs a standby operation for an acoustic signal. When the acoustic signal flows from the department speaker 220 in this state, the user can recognize the emergency disaster information by listening to the voice guidance included in the acoustic signal. On the other hand, when the microphone 102 detects the superimposed signal included in the acoustic signal, the receiving terminal 100 outputs predetermined emergency disaster information. For example, the character information and the moving image shown in FIGS. 3 and 4 are displayed on the display unit of the receiving terminal 100, or the voice guidance is reproduced from the terminal speaker 124. In this way, the voice guidance can be delivered to the user and the emergency disaster information can be output from the receiving terminal 100 as well, so that the emergency disaster information can be transmitted to the user more reliably. In particular, by making the superposed signal a tone signal in the audible range, the user can hear the so-called "pipopa" sound over the normal voice guidance, making it easier for the user's attention and suitable as an emergency broadcast. Become. Even if you are less alert or hard to hear, such as when you are sleeping or taking a shower, you can hear a distinctive and prominent sound like a “pipopa” sound at a high volume. You can expect the effect of turning. Further, it is preferable that the superimposed signal is repeatedly superimposed on the audio data instead of being superimposed only once. As a result, the superimposed signal is reproduced a plurality of times and can be detected more reliably on the receiving terminal 100 side. Further, the superimposed signal can be used as a trigger signal for outputting emergency disaster information or as a selection signal for selecting desired information from a plurality of emergency disaster information.

The above is an example, and can be changed as appropriate. For example, the example of FIG. 13 includes a band for 1633 Hz, which includes keys “A, B, C, D” generally called an extended key array in DTMF, but it may be seven bands without the extended key. .. In this case, since the band of 1633 Hz is not used, the number of peaks is 7, and the number that can be expressed is 12. Further, in the above example, 16 types (4 bits) of signals are expressed by a combination of one low group tone and one high group tone according to the DTMF signal standard, but three or more types of tones may be combined. .. For example, if all eight types of tones, that is, the low-group tone and the high-group tone defined by DTMF are used, it is possible to express 8-bit signals, that is, 256 kinds of signals. Moreover, if more bands are added, more signals can be expressed. For example, by adding a new tone to a band lower than 697 Hz or a region higher than 1633 Hz, a signal of 9 bits or more can be expressed. However, depending on the frequency band, it may not be possible to play or detect with the local speaker or microphone, so select a band according to these characteristics or prepare a local speaker or microphone with characteristics corresponding to the expanded band. It is necessary to take measures such as taking appropriate measures at the time of design. In addition, the route through which the selected and added acoustic signal is transmitted from the local speaker to the microphone, for example, the echo or absorption of the hotel wall or floor, or the room door when the local speaker is installed in the corridor It is designed as appropriate in consideration of whether or not the acoustic signal is transmitted beyond, attenuation characteristics, and the like.

Moreover, an error detection signal such as a checksum, a cyclic redundancy check (CRC), or a parity bit may be added to the superposed signal as needed. In particular, since the DTMF signal is used in a relatively wide range, there is a risk of malfunction when the user uses the telephone. Therefore, in order to avoid such an erroneous operation, a more stable operation can be expected by adding an error detection signal. For example, a specific combination is excluded, or a signal at the start or at the end is limited to a specific signal so that the authentic acoustic signal can be distinguished from other signals.

Further, the superimposition signals such as the trigger signal and the selection signal do not necessarily have to be superposed on the audio data, and only a part of them may be superposed or they may be reproduced in a time division manner.

Furthermore, the above-mentioned DTMF signal is an example, and it is also possible to use a standardized acoustic signal using another existing audible range, or an acoustic signal according to an extended standard or an original standard. Further, not limited to the audible range, it is possible to use the acoustic signal in the non-audible range. Further, it goes without saying that the voice guidance is not limited to the read-aloud voice, but may be music, ringing sound, or the like.

In this way, without using radio waves such as WiFi or public telephone lines, that is, when in an area where radio waves do not reach, or when the terminal side such as in airplane mode disconnects the wireless connection by the data communication unit 118. Even when there is a situation, that is, when the network is not connected, the emergency information can be distributed using the acoustic signal. Especially in the case of an emergency, in the case of a disaster, the broadcasting system is "alive" even if a power outage occurs in the event of a disaster because a separate power supply is secured for broadcasting in the emergency in the hotel. However, the emergency broadcast can be reliably delivered to the user in each room, and the reliability and certainty can be improved. In addition, by displaying the message in multiple languages, foreigners can be notified in English or Chinese, so that the degree of recognition is increased. Particularly in hotels where there are many foreign tourists due to inbound demand and business demand, enhancing the safety at the time of disaster can enhance the appeal effect to these users.

In addition to transmitting the message in text information, for example, sign language can be distributed as a moving image, and an emergency message can be transmitted to a deaf person.
(Embodiment 2)

The above has described the method of delivering the emergency disaster information itself as an acoustic signal from the information transmission source to the receiving terminal. With this method, any information can be decoded and extracted on the receiving terminal side and output in real time. However, processing such as compounding is required on the receiving terminal side, and a corresponding load is applied to the control unit 110.

On the other hand, it is also possible to hold the emergency disaster information in advance on the receiving terminal side and deliver only the trigger signal for outputting the emergency disaster information to the receiving terminal side as an acoustic signal in the event of a disaster. For example, when the reproduction data for reproducing the emergency disaster information previously recorded in the storage unit 104 by the output unit 120 is held and the acoustic signal from the local speaker 220 is detected by the microphone 102, this is stored as a trigger signal. The reproduction data of the emergency disaster information held in the unit 104 is configured to be reproduced by the output unit 120. As a result, the distribution processing can be simplified, and the decoding processing and the like on the receiving terminal side can be greatly simplified, resulting in an advantage that the processing can be performed with a light load.

Further, the emergency disaster information is not limited to one, but a plurality of emergency disaster information can be held on the receiving terminal side, and a selection signal indicating which emergency disaster information is to be output at the time of a disaster can be delivered to the receiving terminal side as an acoustic signal. .. With this method, a plurality of different types of disaster information (for example, in case of fire, earthquake, tsunami, landslide, etc.) can be output. Therefore, the emergency disaster information can include at least one of a fire, an earthquake, a tsunami, and a landslide as disaster type information indicating the type of disaster. Also, the same type of disaster information can be output in different languages (for example, Japanese, English, Chinese, Korean, etc.). Such an example will be described as a second embodiment based on the block diagram of FIG. 7.

The receiving terminal 100 ′ shown in this figure includes a microphone 102, a control unit 110, a storage unit 104, a terminal-side secondary battery unit 130, and an output unit 120. Note that common members are denoted by the same reference numerals as those in the first embodiment, and detailed description thereof is omitted. A plurality of emergency disaster information A, B, C, D are stored in the storage unit 104 in advance. For example, emergency disaster information A has data about emergency disaster broadcast at the time of fire occurrence, B has data about earthquakes, C has data about tsunamis, and D has data about sediment-related disasters. It is held in the section 104. Further, each data may include a plurality of subdivided data. For example, among data A related to emergency disaster broadcast at the time of fire occurrence, A1 is Japanese, A2 is English, and A3 is Chinese. Can have emergency disaster broadcasts in multiple languages. The recording and updating of the data held in the storage unit 104 can be performed via the network by connecting to the server using the data communication unit 118. With this configuration, it is possible to update the data all at once by using the communication via the wireless LAN in normal time, and it is possible to reduce the burden on the administrator side in the update and maintenance.

The control unit 110 also includes an information selection unit 116. The information selection unit 116 is a member for selecting which emergency disaster information to output based on the detected acoustic signal.

Here, the audio signal delivered from the department speaker 220 includes reproduction data type information that specifies which of a plurality of different emergency disaster information should be reproduced. Then, when the microphone 102 detects an acoustic signal from the local speaker 220, this is used as a trigger signal and a selection signal to select the corresponding reproduction data from the reproduction data of the emergency disaster information held in the storage unit 104, The output section 120 is configured to reproduce. For example, when a fire occurs, the information manager 210 sends a broadcast message through the department speaker 220 so that the hotel manager can send emergency disaster information about the fire. The transmitted information is an in-building broadcast that informs the occurrence of a fire that flows from the department speaker 220, and an acoustic signal that is transmitted at the same time as this broadcast. This acoustic signal includes, for example, a selection signal that is a signal related to emergency disaster information (here, a signal that selects A that is emergency disaster information related to fire) is encoded. When this acoustic signal is detected by the microphone 102 of the receiving terminal 100 ′ in each room, the selection signal is extracted by the acoustic signal extraction unit 112 of the control unit 110. Then, according to the instruction of this selection signal, the information selection unit 116 selects predetermined information (here, emergency disaster information at the time of fire) from among the plurality of emergency disaster information A, B, C, and D held in advance in the storage unit 104. Select A). The selected emergency disaster information A is output from the output unit 120. That is, the text information at the time of fire is displayed on the display unit 122 of the receiving terminal 100', and the evacuation information at the time of fire is reproduced from the speaker 124 on the terminal side.

Further, the reproduction data type information may include a plurality of information. In the above example, in addition to the disaster type information indicating the type of disaster, language type information indicating the language to be output can be included. For example, if you want to broadcast emergency disaster information in Chinese, set Chinese as the language type information in the playback data type information so that the Chinese emergency evacuation information is played back, and then receive the emitted acoustic signal. .. As a result, the Chinese emergency evacuation information is output on the receiving terminal 100' side.

In addition, the emergency evacuation information can be output in an individual language on each receiving terminal side so that the emergency evacuation information according to the language set on the receiving terminal side is displayed. That is, the emergency disaster information designated by the disaster type information has prepared emergency disaster information corresponding to a plurality of languages in advance, and includes emergency evacuation information corresponding to the language selected by the language selection unit 114. If the information is present, the emergency disaster information in the selected display language is selected by the information selection unit 116 and output.

As shown in FIG. 4, when one emergency evacuation information includes a plurality of languages in advance, the selected specific language is displayed in a large size, and is highlighted or displayed in another language. The display mode may be changed so that is smaller or not displayed. Alternatively, when a plurality of languages are displayed, such language selection can be omitted.

With this method, the output data is not broadcasted via an acoustic signal in real time, but only the pre-recorded data held in advance on each receiving terminal 100 ′ side is reproduced. The decryption process can be eliminated on the side of the terminal 100′, which can be implemented with a lighter load. Also, since the data to be received need only be a trigger signal indicating the start of reproduction and a selection signal indicating which emergency disaster information is to be selected, the amount of data to be detected by the microphone 102 can be extremely reduced and the amount of processing to be performed is small. As a result, necessary hardware specifications can be reduced, and mounting becomes easier. On the other hand, in this system, the pre-recorded data needs to be stored in each receiving terminal in advance, but during normal times, the data communication unit 118 is used to connect the information transmission source 210 and other servers to the network through a wireless LAN or the like. Then, by receiving the data distribution, such trouble can be saved. Especially in normal times, the power supply is secured and it is easy to obtain an environment in which data communication using radio waves can be stably performed, so data is distributed to each receiving terminal in such a state, and updating and addition of data are also the same. By doing so, even if the number of receiving terminals increases, the maintenance work can be minimized.

Further, the receiving terminal described above can be used not only as a terminal for receiving distribution of emergency disaster information but also as an information terminal for explaining facilities and equipment. For example, on the main display screen 11 on the display unit 122, as shown in FIG. 8, various explanations are arranged as hotel guidance. Here, icons and buttons with links to multiple screens are placed. Specifically, a "front desk" button 11a, a "WiFi setting" button 11b, a "hotel facility and service guide" button 11c, a "restaurant or venue guide" button 11d, and a "terms of use" button 11e. , An icon with a link to a "information on nearby traffic and tourist information" button 11f, a "information on external service such as taxi or foreign currency exchange" button 11g, and a "use questionnaire" button 11h is arranged. It is needless to say that these are merely examples, and buttons for other explanations and functions can be arranged, and conversely, some of them can be omitted or summarized. In this way, the instructions installed in the hotel can be used as a substitute, which contributes to the convenience of paperless and content updates.

Further, as shown in FIG. 9, an evacuation route guidance screen 13 is also prepared. For example, a plan view of the evacuation route, the position of the emergency exit, a safety guide, etc. are displayed. As a result, the evacuation route is known to the user in advance during normal times. Further, the evacuation route guidance screen 13 may be added with a description of the function of notifying emergency disaster information. In the example of the evacuation route guidance screen 13 shown in FIG. 9, an emergency broadcast explanation field 13a is provided at the upper left of the screen so that an emergency broadcast is transmitted in an emergency and the broadcast content is displayed in text on the receiving terminal 100. Is explained. This allows the user to know in advance that emergency disaster information will be announced through the receiving terminal when a disaster occurs. If necessary, by clicking the emergency broadcast explanation column 13a, a sample screen of the emergency broadcast screen 12 may be displayed, or a more detailed description of the distribution function of emergency disaster information may be displayed. In particular, by displaying the emergency broadcast screen 12 illustrated in FIGS. 3 and 4 as a sample screen, it becomes easier for the user to visually visualize the distribution of the emergency disaster information in advance, without panicking when a disaster occurs. Can be easily handled. In addition, although the screen examples including the evacuation route guide screen 13 described above are displayed in Japanese, they may be displayed in other languages. For example, according to the language setting on the language selection screen 10 in FIG. 5, it is automatically switched so that various explanations are displayed in the selected language, so that it is easy for the user to use, especially for users from overseas without hesitation. It can contribute to the construction of an emergency disaster information distribution system that can be used for

In this way, the emergency disaster information system according to the above-described embodiment can be introduced by using the information terminal arranged in the guest room of the hotel. That is, by installing a dedicated program or application on the information terminal, it can be used as a receiving terminal for emergency disaster information, so it is possible to easily and inexpensively introduce an emergency disaster information broadcasting system using existing equipment. Is possible.

According to the above emergency disaster information broadcasting system, it is possible to secure means for transmitting information even when the mobile radio wave or GPS is unstable or the power source is lost during a disaster. Also, in the case of a network connection type, if many users use it at once, there is a concern that the network will be concentrated and it will be difficult to turn on or the server will go down. Especially in the event of a disaster, such concentration of connections is likely to be confirmed from past disaster data. On the other hand, according to the present embodiment, since the communication is not bidirectional communication but unidirectional broadcast distribution, each connection is performed individually and a situation such as network concentration does not occur, so that the reliability is high. Moreover, since a general-purpose information terminal such as a widely used tablet can be used, a situation in which an expensive dedicated device is introduced and the device is not used eventually does not occur, and the convenience is high. In addition, it may be difficult to hear due to overlapping weather and sound only with disaster prevention radio broadcasts and in-house broadcasts, and where important parts may be missed or forgotten, by displaying text information on the display unit It is also possible to easily look back and check the contents, and the risk of oversight or forgetting can be reduced. Furthermore, the existing tablet or the like can be easily installed in the information terminal, and the sleep mode is set by using BLE or the like by constantly activating the emergency disaster information receiving function while the power is ON. There is no need to introduce a mechanism for returning the device (i-Beacon (trade name) or EddyStone (trade name), etc.), and it is possible to use an offline system without relying on such a configuration that assumes data communication using radio waves. Operation is possible and reliability can be improved so that it can operate even in the event of a disaster. Further, unlike data communication in which the communication partner is specified, each of the receiving terminals receives it as a broadcast transmission, so that the communication capacity is limited, such as when a disaster occurs, as in conventional data communication. It is possible to avoid the situation where the server is down due to concentrated access, and it is not necessary to build an expensive server in the first place, and it is easy to introduce. Even with the loss of power or radio waves due to the extremely simple configuration. The advantage is that it is possible to build an emergency disaster broadcasting system that can notify the occurrence of disasters and evacuation. In addition, multilingualization can be easily performed. As described above, according to the present embodiment, it is possible to realize convenient and reliable broadcast of emergency disaster information in applications such as hotels where many foreign users are required and high safety is required. Is obtained.

Further, not only a receiving terminal such as a tablet installed in a facility such as a hotel, but also a mobile terminal such as a personal smartphone or tablet carried by a user can be used as the receiving terminal. That is, by installing a dedicated application, it is possible to operate as a receiving terminal that can be used in the emergency disaster broadcast broadcasting system. According to this method, when a plurality of users stay in one room in the hotel, a smartphone or the like owned by each person can function as a receiving terminal of the emergency disaster broadcast broadcasting system.

In addition, this structure can be used not only for staying in facilities such as hotels but also outdoors. For example, in an outdoor tourist destination as shown in FIG. 15, by using a street speaker as the department speaker 220″, a trigger signal or a selection signal is sent from the department speaker 220″ together with voice guidance, so It is possible to broadcast emergency disaster information to the receiving terminal 100" such as a smartphone (which has a dedicated application installed in advance) that is owned by the user. In particular, prepare to output emergency disaster information in a foreign language for foreigners. This makes it possible to notify foreigners who do not speak Japanese of the occurrence of emergency disasters and criticism information.

If necessary, a speaker 220″ for a local office is newly installed in a tourist spot, or an emergency power source 230″ such as an uninterruptible power source is connected to an existing street speaker, so that the tourist spot is relatively inexpensive. It is possible to build an emergency disaster information broadcasting system in. Especially for foreign tourists visiting Japan, at the airports, tourist information centers, or websites for tourists, by notifying the emergency disaster information broadcasting system and encouraging them to download a dedicated application for free. , Providing an environment where information can be received not only in Japanese but also in each language in the event of an emergency disaster, giving a sense of security to foreign tourists, and there is little foreign language information when visiting Japan Such anxiety can be alleviated, and it can also contribute to an increase in inbound demand due to an increase in the number of visitors to Japan.

In addition, it is possible to use not only a mobile terminal owned by the user as a receiving terminal but also a monitor such as a display installed in each place. In recent years, monitors such as liquid crystal displays have been widely used for displaying timetables and destinations at transportation facilities such as stations and bus stops. Alternatively, a display called digital signage is used for each floor guide map and event guide in a shopping mall, as well as for advertising. Alternatively, large monitors installed on the walls of buildings are also used. When an OS (operating system) is already installed on these displays, such as a smart TV, a dedicated application is installed, a microphone is connected if necessary, and the display is shown in FIG. By connecting the emergency power supply 230″″ such as UPS in this way, it is possible to easily function as the receiving terminal 100″″ of the emergency disaster information broadcasting system. In addition, even if you do not have an OS, you can connect a cheap and small computer, for example, a Raspberry Pi (product name) or stick type PC called a super small personal computer or a mini PC, to the video output terminal (D-Sub or HDMI terminal, etc.). In addition, by securing the power supply, it becomes possible to operate as a computer. Therefore, by installing the above-mentioned dedicated application on the computer, it can function as the receiving terminal 100″′ of the emergency disaster information broadcasting system. Further, as in the case of the outdoor tourist resort described above, by using a street speaker or the like as the local speaker 220″, it is possible to distribute the emergency disaster information by transmitting the audio data together with the voice guidance. Since the monitor screens placed in such towns are relatively prominent, they can be used by a large number of users quickly by using them to display the fact of a disaster and evacuation routes when a disaster occurs. On the other hand, it becomes possible to announce the information that should be transmitted, which will lead to the provision of disaster information as a city function and the realization of safety for many users who live and work in various places. It becomes possible. The monitor does not have to have a two-way communication function, and is equipped with a so-called sound reception function that receives an acoustic signal with a microphone, and is configured to output emergency disaster information using this acoustic signal as a trigger. It's enough. Preferably, by providing the emergency power supply, it becomes possible to operate the emergency disaster broadcast system even during a power failure.

The emergency disaster broadcast broadcasting system, the emergency disaster broadcast receiving terminal, the emergency disaster broadcast transmitting method, the emergency disaster broadcast receiving method, the emergency disaster broadcast receiving program, the computer-readable recording medium, or the recorded device of the present invention is for a hotel. It can be suitably used for emergency disaster information broadcasting. It can also be applied to fire-prevention objects specified by the Fire Service Law, such as theaters, public halls, and nursing facilities. Further, the invention of the present application can be applied to an outdoor tourist spot, an office district, etc. by using a smartphone owned by the user or a monitor on the street.

1000... Emergency disaster information broadcasting system 1... Text information 2... Sign language moving image 10... Language selection screen; 10a, 10b, 10c, 10d... Language selection button 11... Main display screen; 11a... "Front guide"button; 11b... "WiFi setting"button; 11c... "Hotel facilities and service information"button; 11d... "Restaurant and venue information"button; 11e... "Terms of service"button; 11f... "Nearby traffic and tourism""Guideinformation"button; 11g... "Information on external services such as taxis and foreign currency exchanges"button; 11h... "Usage questionnaire" button 12... Emergency broadcast screen 13... Evacuation route guide screen; 13a... Emergency broadcast explanation column 100, 100' , 100", 100"'... Receiving terminal 102... Microphone 104... Storage section 110... Control section 112... Acoustic signal extracting section 114... Language selecting section 116... Information selecting section 118... Data communication section 120... Output section 122... Display section 124... Terminal-side speaker 130... Terminal-side secondary battery section 200... Information transmission device 210... Information transmission sources 220, 220″... Local speakers 230, 230″, 230″′... Emergency power supply CR... Corridor RM... Room

Claims (9)

An emergency disaster information broadcasting system for broadcasting emergency disaster information to receiving terminals respectively installed in various parts of a hotel,
In-house broadcasting station speaker installed in the department that sends emergency disaster information,
An information transmission source that is connected to the department speaker and performs one-way communication by transmitting a signal regarding emergency disaster information as an acoustic signal from the department speaker,
Receiving terminals installed in each department that sends emergency disaster information,
Equipped with
The receiving terminal is
A microphone for receiving an acoustic signal from the local speaker,
Standby in a state in which an acoustic signal can be detected by the microphone, analyze the acoustic signal received by the microphone, the acoustic signal as a trigger, an output unit for outputting pre-specified emergency disaster information,
A terminal-side secondary battery unit for supplying electric power for driving the receiving terminal,
A user of the receiving terminal includes a language selection unit for switching the operating language to a plurality of different languages,
The output unit of the receiving terminal includes a display unit,
In the display unit, it is possible to display emergency disaster information including the language selected by the language selection unit,
The information transmission source and the speaker for the department are connected to a power source of a system different from the power system in the hotel,
The receiving terminal is configured so as not to shift to a sleep mode in which a standby operation of an acoustic signal by the microphone is stopped,
The sound signal is reproduced from the information transmission source through the department speaker, and the sound of the emergency disaster broadcast and at least a part of the sound superimposed on the sound can be analyzed by the receiving terminal side to decode the emergency disaster information. Emergency disaster information broadcasting system including various superposed signals. The emergency disaster information broadcasting system according to claim 1,
An emergency disaster information broadcasting system capable of displaying the emergency disaster information displayed on the display unit in two or more languages including the language selected by the language selection unit. The emergency disaster information broadcasting system according to claim 1 or 2,
The emergency disaster information broadcasting system, wherein the acoustic signal is a signal including an inaudible range and an audible range. The emergency disaster information broadcasting system according to claim 3,
The emergency disaster information broadcasting system, wherein the superimposed signal superimposed on the voice of the emergency disaster broadcast is a voice watermark signal. The emergency disaster information broadcasting system according to claim 1,
The sound signal is reproduced from the information transmission source through the department speaker, and the emergency disaster broadcast sound and time-divisionally distributed with the sound can be analyzed by the receiving terminal side to decode the emergency disaster information. Emergency disaster information broadcasting system that includes various trigger signals. The emergency disaster information broadcasting system according to any one of claims 1 to 5,
The receiving terminal further comprises
It is equipped with a storage unit that holds reproduction data for reproducing the pre-recorded emergency disaster information at the output unit,
When an acoustic signal from the department speaker is detected by the microphone, the reproduction data of the emergency disaster information stored in the storage unit is reproduced by the output unit by using the microphone as a trigger signal. Broadcast system. The emergency disaster information broadcasting system according to claim 6,
The receiving terminal holds a plurality of different emergency disaster information in advance in the storage unit,
The acoustic signal includes reproduction data type information that specifies which of the plurality of different emergency disaster information should be reproduced,
When an acoustic signal from the local speaker is detected by the microphone, the trigger signal and the selection signal are used as a trigger signal and a selection signal to select the corresponding reproduction data from the reproduction data of the emergency disaster information held in the storage unit, An emergency disaster information broadcasting system configured to be played back at the output unit. The emergency disaster information broadcasting system according to any one of claims 1 to 7,
An emergency disaster information broadcasting system in which a DTMF signal is superimposed as the acoustic signal. The emergency disaster information broadcasting system according to any one of claims 1 to 7,
An emergency disaster information broadcasting system in which a signal in an inaudible region is superimposed as the acoustic signal.