JPH0834519B2 - Emergency communication system - Google Patents

Description

TECHNICAL FIELD The present invention relates to an emergency information transmission system that simultaneously notifies a large number of citizens of emergency information regarding an emergency situation such as a fire or an earthquake through a telephone.

[Conventional technology]

FIG. 7 is a schematic block connection diagram showing a conventional telephone system. In the figure, 51 and 52 are telephones of respective interlocutors, which are communication lines through an automatic exchange 53 of step-by-step type or crossbar type. Connected to 54.

Next, the operation will be described. In the above telephone system,
When one telephone 51 calls the other telephone 52 through the automatic dial exchange and the other party lifts the handset, both interlocutors can talk with each other. That is, in the conventional telephone systems, the interlocutors can talk only on a one-to-one basis.

[Problems to be solved by the invention]

Since the conventional telephone system is configured as described above, only two interlocutors can talk with each other, and for example, the configuration is completely unusable for transmitting emergency information from public facilities. Therefore, despite the fact that each household has a telephone, there is a problem in that it is not possible to notify the general public in a limited area of the emergency transmission of disaster information such as an earthquake or a tsunami.

The present invention has been made to solve the above problems, and an object of the present invention is to make it possible to notify the general public of emergency information by using the telephone of each home.

[Means for solving problems]

The emergency information transmission system according to the present invention determines whether the transmission mode area of the format data transmitted from the information center is the interactive call mode or the common information transmission mode, switches the switch in the common information transmission mode, and selects all of the belonging A repeater having a control unit for connecting a telephone line of
And a telephone having a microprocessor for storing the emergency information contained in the input format data and a microprocessor for reading the emergency information from the memory and outputting the voice when the telephone is picked up.

[Action]

In the repeater according to the present invention, when the designated mode of the input format data is the common information transmission mode, the switch is switched to connect the lines of all the telephones to which it belongs, and each connected telephone is connected via the repeater. When the inputted emergency information is stored in the memory and the receiver is lifted, the emergency information is read out from the memory and output as voice.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a public information center for managing information,
The relays 2, 3 and 4 relay the emergency information from the information center 1 and are provided for each district. 5,6,7 are telephones of each household, and 8,9,10 are telephones of fire stations installed in each district.

FIG. 2 is a control block connection diagram of the information center 1. Reference numeral 11 is a management computer that executes processing and control of emergency information, and 12 is a telephone number of a household in each of the above districts and holds flag information for confirming information transmission. A storage device for a database, 13 is a signal converter that converts the voice of the speaker 14 into a digital signal of 64 Kbps, for example, and the management computer 11 takes in the digital signal thus converted, and the management computer 11 is based on this digital signal. It is converted into a frame format 21 as shown in FIG. 15 is a communication interface for transmitting the format information to the outside. The management computer 11 has a buffer memory for storing temporary information for executing various types of information processing.

The format above has four areas 22,23,
24, 25, the destination address area 22 is, for example, a station address of a repeater for each predetermined area or an address corresponding to a telephone number for each home registered in the storage device 12, and the transmission mode area 23 is a normal area. Is a mode selection area for designating a one-to-one dialogue mode or a common information transmission mode to a certain area. Also, the priority leveling area 24
Determines the priority in the listener's message, with emergency information as the highest priority, normal one-to-one dialogue to the next level, and simple circulation boards and bulletin information to the next level. This is an area for setting general commercial advertisement information to the lowest level. It is necessary to determine the above-mentioned highest priority level in, for example, the public information center 1 which has authority and responsibility, and the level of the circulation board and the commercial advertisement information is determined in the district communication center in the district. twenty five
Is a normal message area, in which voice is converted into a digital signal and transmitted. Also, the format 22 area 22
~ 25 is basically the above, but other than this area
A header area for identifying the start of transmission is provided at the beginning of 22 and a check data area for confirming whether or not the message has been correctly transmitted to the receiver is provided after the message area 25, and an identification code at the end of the transmission is provided. Is added as bit concatenated data.

FIG. 4 is a connection diagram of the repeaters 2, 3 and 4. Here, according to the designated mode from the information center 1, the control unit 31 determines whether the switch 32 switches the switch 32 for a one-to-one interactive call or the switch 33 switches the common information broadcast mode. The transmission route 34 is configured to determine whether to transmit the information of the transmission route 34 to one of the specific lines 35 or all the lines, and to transmit the information. Therefore, each line has
32 A diode is required so that the information specified for one line does not spill into the other line.

FIG. 5 is a block connection diagram showing the internal configuration of the telephones 5, 6, and 7 installed in each home. In the figure, reference numeral 41 denotes a communication interface unit connected to each line 35, which is composed of a digital transmission / reception circuit and has a function of checking whether or not the digital data of the format is correctly received. 42 is a microprocessor which controls various controls of the telephone, and has a memory for storing necessary processes and programs. 43 is a mail box memory which is a storage means for digitally storing the message of the emergency information, 44 is a reproduction modulation circuit for reproducing and modulating the message, 45 is a receiver, and 46 is an interlocutor.

 Next, the operation will be described.

First, when the information center 1 has information such as an emergency evacuation, the management computer 11 specifies the area stored in the storage device 12, and outputs the format data shown in FIG.
Send to 3,4. Each relay 2, 3, 4 has a switch 33 so that the control unit 31 as shown in FIG. 4 selects, for example, all telephone subscribers in the area A, the broadcast mode and the highest priority level.
Close. Therefore, the message of the format data is input to the telephone set of the telephone subscriber in the area A. Emergency information input to the telephone is sent by the microprocessor 42 to the mail box memory via the communication interface 41.
Stored in 43 memory areas. The emergency information is stored in the memory area and prepared for transmission before the interlocutor 46 picks up the handset 45 by ringing the bell of the telephone at the same time as inputting the emergency information. Interlocutor 46 is handset 45
When turned up, the processor 42 converts the message information (emergency information) from the memory box 43 into an analog voice signal through the reproduction modulation circuit 44 and inputs it to the handset 45. Therefore, the handset 45 sends emergency information to the interlocutor 46. The fourth
In the one-to-one interactive call mode in which the switch 32 is closed and the switch 33 is opened as shown in the figure, when emergency information in the common information transmission mode is transmitted from the information center 1,
Since the control unit 31 of the repeater opens the switch 32 and closes the switch 33, the control unit 31 of the repeater can act to send the emergency information to, for example, most telephones in the area A. Therefore, emergency information is transmitted to all households. Further, the microprocessor 42 can determine that the emergency information has been reliably transmitted because each receiver is picked up, and can set the confirmation flag in the database to the information center 1 side through the relay device 2.

In this way, the emergency information supplied from the information center 1 through the telephone line is interrupted even if the one-to-one interlocutors (not shown) are talking, and the information is sent to all the telephone subscribers simultaneously and quickly. Can be made. Therefore, as shown in FIG. 6, when a fire occurs in, for example, the A district among the A district, the B district, and the C district, the information center 1 calls each home in the A district by using each telephone. Then, an emergency evacuation notice will be given, and the fire departments in the A and B areas will be requested to be dispatched through the telephones 8 and 9, and the fire departments in the C district will be requested to wait for dispatch through the telephone 10.

〔The invention's effect〕

As described above, according to the present invention, the emergency information transmitted from the information center is distributed to the repeaters in a plurality of districts, and the distributed emergency information is transmitted to all the telephones belonging to the repeater, and the emergency information is transmitted. Is stored in the mailbox memory attached to each telephone, and when the telephone receiver of that telephone is lifted, the stored emergency information is read and played as voice from the telephone receiver. Not only is it used in the interactive call mode, but it is also used as an emergency information transmission means, and there is an effect that common emergency information can be simultaneously sent to all telephone subscribers.

[Brief description of drawings]

FIG. 1 is a block connection diagram of an emergency information transmission system according to an embodiment of the present invention, FIG. 2 is a block connection diagram of the same information center, FIG. 3 is a format diagram of information transmitted by the information center, and FIG. Similarly, a connection diagram of a repeater, FIG. 5 is a block connection diagram of a telephone, and FIG. 6 is an explanatory diagram of fire information.
FIG. 7 is a block connection diagram of a conventional telephone system. 1 is an information center, 2,3,4 are repeaters, 5,6,7 are telephones, 42 is a microprocessor, and 43 is a mail box memory.

Claims (1)

[Claims] 1. In an emergency information transmission system in which a large number of telephones are connected to an information center via a repeater, the information center includes a signal converter for converting a speaker's voice into a digital signal, and the voice to the digital signal. A management computer for converting into a format information consisting of a destination address area, a transmission mode area, a priority leveling area for deciding the priority of information, and a message area storing a message by the digital signal, and storing it in a storage means. The repeater determines whether the transmission mode area of the format information transmitted from the information center is an interactive call mode or a common information transmission mode, and switches the switches in the common information transmission mode to switch all telephones to which it belongs. The telephone is equipped with a control unit for connecting a line to the information center, Storage unit for storing the emergency information transmitted from the receiver until the handset is picked up, and a microprocessor for reading out the emergency information from the storage unit based on that the handset is picked up and outputting a voice, the information center When the emergency information is input, the format information stored in the storage means is transmitted, and when the designated mode from the information center is the common information transmission mode with high priority, the repeater switches the switch. Connect all telephone lines to the information center,
An emergency information transmission system characterized in that emergency information from the information center is stored in the storage means of each telephone, and the telephone outputs the emergency information by voice when the interlocutor picks up the receiver.