JP5520637B2 - Wireless communication system - Google Patents

Description

  The present invention relates to a radio communication system, for example, a connection between a disaster prevention radio system such as a municipal disaster prevention radio broadcast system and an external alarm system such as J-ALERT (National Instantaneous Alarm System). The disaster prevention radio system is installed, for example, in units of municipalities, and transmits information on disaster prevention to local residents using an outdoor loudspeaker or the like.

  As a method of transmitting information in a conventional wireless communication system, for example, a municipal disaster prevention digital wireless communication system is known. In this municipal disaster prevention digital wireless communication system, an emergency information is transmitted from a master station to a slave station (outdoor loudspeaker station) installed outdoors and equipped with a loudspeaker, and the emergency information is received. The slave station transmits urgent information and the like to the local residents by voice notification using a loudspeaker. In the following Patent Document 1, for example, as a disaster prevention radio system installed in a municipal unit, a master station obtains a disaster bulletin from J-ALERT (National Instantaneous Warning System), and a plurality of slave stations (mobile stations) from the master station ) Is described.

  FIG. 3 is a diagram showing a system in connection between a municipal disaster prevention radio broadcast system (hereinafter referred to as a broadcast system) and J-ALERT (a nationwide instantaneous warning system). In FIG. 3, 110 is a master station facility, 140 is a J-ALERT facility, and 150 is a slave station facility. The master station facility 110 includes an operation console 120 and a wireless transmission / reception device 130. The J-ALERT equipment 140 includes a J-ALERT reception equipment 141, an automatic starter 142, and a CS (communication satellite) antenna 143. The slave station facility 150 includes an outdoor loudspeaker slave 151 and a door-to-door receiver 152.

  First, the operation of the broadcast system will be described. In the system configured as shown in FIG. 3, the console 120 sends various control signals including an activation signal for activating the slave station to the wireless transmission / reception device 130, and voices such as emergency information by the operator. Sends out signals. The wireless transmission / reception apparatus 130 receives various control signals including an activation signal from the console 120 and audio signals such as emergency information, and activates the local station equipment 150 such as the outdoor loudspeaker slave 151 and the door-to-door receiver 152. Wireless transmission and reception of various control signals including signals and voice signals such as emergency information are performed. The wireless transmission / reception device 130 includes a control unit and a wireless unit, and the control unit receives and processes a control signal and an audio signal from the console 120, and the wireless unit transmits the control signal and the audio signal to the slave station 150. It is. The outdoor loudspeaker slave 151 and the door-to-door receiver 152 which are the slave station facilities 150 receive the control signal and the voice signal sent from the wireless transmission / reception device 130, convert the voice signal into voice, and output the voice through a speaker. . The broadcast system uses these devices to notify the residents of the contents of reports such as emergency information from the master station 110 via the slave station device 150.

Next, the J-ALERT equipment 140 will be described. The CS antenna 143 receives J-ALERT emergency information sent from the fire department. The J-ALERT receiving equipment 141 demodulates, analyzes and processes the emergency information received by the CS antenna 143. The automatic activation device 142 sends an audio signal and an activation signal corresponding to the signal analyzed and processed by the J-ALERT reception equipment 141 to the console 110.
The connection procedure between J-ALERT and the broadcast system will be described with reference to FIG. As shown in (1) of FIG. 3, for example, the fire department sends out emergency information from the Japan Meteorological Agency or Cabinet Secretariat to each municipality by broadcast using satellite communication. Next, as shown in (2), the emergency information from the Fire Department is received and analyzed by the CS antenna 143 and the J-ALERT receiving equipment 141 of the J-ALERT equipment 140 installed in the municipal office. Then, the automatic activation device 142 sends an activation signal and an audio signal corresponding to the emergency information to the console 120 of the broadcast system. As shown in (3), the console 120 that has been started up is connected to the J by the slave station equipment 150 (the outdoor loudspeaker slave 151 or the individual receiver 152) installed in the municipality via the wireless transceiver 130. -Notify the residents of audio signals according to emergency information from ALERT.

  The connection procedure between J-ALERT and the broadcast system will be described in more detail with reference to FIG. In FIG. 4, the emergency call device 140, which is a facility for J-ALERT, receives a J-ALERT signal that is distribution information from the fire department (S41 in FIG. 4). When the J-ALERT signal is received, the emergency call device 140 sends an activation signal to the console 120 (S42). The console 120 that has received the activation signal S43 performs notification processing (transmission of activation signal to the wireless transmission / reception device 130) to the wireless transmission / reception device 130 (S44). Upon receiving the notification process (S44), the wireless transmission / reception device 130 activates the wireless transmission / reception device 130 and enters a state where transmission / reception is possible. When the transmission / reception operation is enabled, the wireless transmission / reception device 130 returns a response signal indicating that the transmission / reception operation is possible to the console 120 (S45). Upon receiving the response S45, the console 120 transmits a slave station call signal to the slave station equipment 150 via the wireless transmission / reception device 130 (S46).

  When the slave station call signal is received, the called slave station equipment 150 (the outdoor loudspeaker slave station 151 and the door-to-door receiver 152) establishes a line from the standby (standby) state so far, and enters a reportable state. (S47).

After transmitting the slave station calling signal to the slave station equipment 150, the wireless transmission / reception device 130 transmits a status notification signal indicating that the voice signal can be transmitted to the console 120 (S48). . When the status notification signal is received, the console 120 enters a reportable state in which the voice signal from the emergency call device 140 can be received (S49), and a report enable signal indicating that the report is possible is sent to the emergency report. It transmits with respect to the apparatus 140 (S50). Upon receiving the report enable signal, the emergency call device 140 transmits an audio signal to the console 120 (S51). Upon receiving the audio signal S52 from the emergency call device 140, the console 120 transmits the audio signal S53 to the wireless transmission / reception device 130. When receiving the audio signal S53 from the console 120, the radio transmission / reception device 130 transmits the audio signal S54 to the slave station equipment 150. When receiving the audio signal S54, the slave station equipment 150 outputs the audio based on the audio signal S54 from the speaker (S55).
As described above, the communication procedure between the master station and the slave station is established. That is, a communication procedure between the console 120 and the wireless transmission / reception device 130, a communication procedure between the wireless transmission / reception device 130 and the slave station facility 150, and the like are established.

JP 2008-306262 A

  With conventional communication from a master station to a slave station, it takes time to establish a communication procedure between the master station and the slave station. In particular, it takes time to establish a communication procedure such as notification processing between the console and the wireless transmission / reception device. For this reason, there is a problem that it takes time from the emergency call device to the voice report at the slave station, and the voice report at the slave station becomes slow for a report that requires urgency such as an emergency earthquake warning.

  The present invention has been made to solve such a conventional problem, and shortens the time from the emergency call device to the voice call at the slave station, and functions effectively even for a call requiring urgentness. An object of the present invention is to provide a wireless communication system.

In the present invention, in order to achieve the above-mentioned object, distribution information such as emergency information from an external system such as J-ALERT is notified to the slave station without going through the console of the master station. A typical configuration of the present invention for solving the above problems is as follows. That is,
A wireless communication system comprising a slave station capable of outputting voice and a master station connected to the slave station by radio, transmitting delivery information from the master station to the slave station, and outputting the delivery information received by the slave station by voice There,
The master station includes a console for creating first distribution information, an emergency notification device for receiving second distribution information from outside and creating third distribution information based on the second distribution information, and a console. When receiving the first distribution information created in step 4, the fourth distribution information is created based on the first distribution information and transmitted to the slave station by radio, and the third distribution information created by the emergency call device is received. A wireless transmission / reception device that creates fifth distribution information based on the third distribution information, and transmits the fifth distribution information to the slave station wirelessly in preference to the fourth distribution information;
The slave station includes a wireless reception unit that receives the fourth distribution information or the fifth distribution information transmitted from the parent station, and is based on the received fourth distribution information or fifth distribution information. wireless communication system, wherein the benzalkonium to output the sound comes.
When the emergency notification device receives the second distribution information from the outside, the emergency notification device transmits an activation signal to the wireless device. When the wireless device receives the activation signal from the emergency notification device, the emergency notification device transmits the activation signal to the console. It is preferable to transmit a notification prohibition signal that prohibits transmission of one distribution information.
Furthermore, it is preferable that the wireless device transmits a notification prohibition release signal to the console when transmitting the fifth distribution information to the slave station.
In order to achieve the above-described object, the wireless communication system of the present invention includes an operation console operated by an operator to input distribution information, an emergency notification device receiving distribution information at a receiving unit, the operation console, A wireless device that is connected to the emergency call device, receives distribution information from the console and the emergency call device and performs wireless transmission, and a slave station that receives the distribution information wirelessly transmitted from the wireless device and outputs sound The emergency notification device transmits an activation signal to the wireless device when receiving the distribution information, and when the wireless device receives the activation signal from the emergency notification device, the emergency notification device transmits the activation information to the console. It is characterized by transmitting a report prohibition signal for prohibiting transmission.
The wireless device preferably transmits a notification prohibition release signal to the console when wirelessly transmitting the distribution information received from the emergency notification device.

  According to the present invention, the time from the start of communication at the master station to the voice report at the slave station can be greatly shortened compared to the loudspeaker report in the conventional radio communication system, so that even a report requiring urgentness is wireless. The communication system can function effectively.

It is a figure which shows the structural example of the radio | wireless communications system in the Example of this invention. It is a figure which shows the flow of the signal until the communication procedure establishment between a master station and a slave station in the Example of this invention. It is a figure which shows the structural example of the radio | wireless communications system in a prior art. It is a figure which shows the flow of the signal until the communication procedure establishment between a parent station and a slave station in a prior art.

  A wireless communication system as an example of an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram illustrating a configuration example of a radio communication system according to an embodiment of the present invention, for example, a municipal disaster prevention administrative radio system. As shown in FIG. 1, the wireless communication system of this example includes a master station 10 and a slave station 50. The master station 10 is usually installed in a building of an administrative authority such as a disaster prevention center, city hall or town / village office. Although only one slave station 50 is shown in FIG. 1, a plurality of slave stations 50 can exist. The master station 10 includes an operator console 20 in which an operator creates first distribution information and performs manual broadcast or automatic broadcast by setting registration, and an external information source such as J-ALERT (National Instantaneous Warning System). Various kinds of information between the slave station 20 and the emergency call device 40 that receives the second distribution information that requires urgency, such as the earthquake early warning, and creates the third distribution information based on the second distribution information And a wireless transmission / reception device 30 that transmits and receives information. The console 20 is an internal information distribution device that creates and distributes the first distribution information inside the master station, and the emergency call device 40 acquires the second distribution information from outside the master station and distributes it outside. An information distribution device.

  The console 20 includes an input / output unit 21, a console control unit 22, and an interface unit 23 with the wireless transmission / reception device 30, for an operator to manually create first distribution information and perform broadcasting or the like. It is. The input / output unit 21 includes input means such as a keyboard for an operator to input, and display output means such as an LCD display. The console control unit 22 creates first distribution information based on the input information from the input / output unit 21, and various control signals including an activation signal for activating the slave station to the wireless transmission / reception device 30. In addition, an audio signal as the first distribution information is transmitted. As a hardware configuration, the console control unit 22 includes a CPU (Central Processing Unit) and a memory that stores an operation program of the console control unit 22, and the CPU operates according to the operation program.

  The emergency call device 40 includes a reception unit 41, an emergency call control unit 42, an interface unit (IF unit) 43 with the wireless transmission / reception device 30, and a reception antenna 44. The antenna 44 is, for example, a CS (communication satellite) antenna, and receives second distribution information that is emergency information from an external information source such as J-ALERT (National Instantaneous Warning System). The receiving unit 41 demodulates the second distribution information received by the antenna 44. The emergency call control unit 42 analyzes the signal demodulated by the receiving unit 41, creates an audio signal as third distribution information based on the second distribution information, and activates the wireless transmission / reception device 30. Create an activation signal for The emergency call control unit 42 includes a CPU (Central Processing Unit) and a memory that stores an operation program of the emergency call control unit 42 and the like as a hardware configuration, and the CPU operates according to the operation program. The interface unit 43 transmits and receives various signals to and from the wireless transmission / reception device 30.

  The wireless transmission / reception device 30 includes a master station wireless unit 31, a wireless control unit 32, an interface unit 33 with the console 20 and the emergency call device 40. The master station radio unit 31 performs radio transmission and reception with the slave station 50. The wireless control unit 32 controls the entire operation of the wireless transmission / reception device 30. In addition, the wireless control unit 32 creates the fourth delivery information based on the first delivery information created on the console 20, and the fifth delivery information based on the third delivery information created by the emergency call device 40. create. As a hardware configuration, the wireless control unit 32 includes a CPU (Central Processing Unit) and a memory for storing an operation program of the wireless control unit 32, and the CPU operates according to the operation program.

  The slave station 50 is, for example, an outdoor loudspeaker slave station or a door-to-door receiver. The slave station 50 controls the overall operation of the slave station radio unit 51 that performs transmission and reception with the master station 10 and The slave station control unit 52 that converts the transmitted fourth distribution information and fifth distribution information into a voice signal, the loudspeaker unit 53 that amplifies (speaks) the voice signal output from the slave station control unit 52, and the loudspeaker And a speaker 55 for outputting the sound signal as sound. As a hardware configuration, the slave station control unit 52 includes a CPU (Central Processing Unit) and a memory for storing an operation program of the slave station control unit 52, and the CPU operates according to the operation program.

  First, the operation as a broadcast system will be described. In the system configured as shown in FIG. 1, an operator creates first distribution information on the console 20, and includes an activation signal for activating a slave station from the console 20 to the wireless transmission / reception device 30. Various control signals and an audio signal as the first distribution information are transmitted. The wireless transmission / reception device 30 receives various control signals and first distribution information from the console 20, creates fourth distribution information based on the first distribution information, an outdoor loudspeaker station, an individual receiver, etc. The mobile station 50 wirelessly transmits various control signals including an activation signal, an audio signal as fourth distribution information, and the like. The slave station 50 receives the control signal and the audio signal (fourth distribution information) sent from the wireless transmission / reception device 30, converts the audio signal (fourth distribution information) into sound, and outputs the sound through a speaker. is there. The broadcast system uses these devices to notify the residents of the content of the distribution information from the master station 10 via the slave station 50.

Next, the operation as an emergency call system corresponding to emergency information such as J-ALERT will be described with reference to FIG.
In FIG. 2, the emergency call device 40 receives a J-ALERT signal, which is second distribution information distributed as emergency information from the Fire Department, for example (S1 in FIG. 2). Upon receipt of the J-ALERT signal (second distribution information), the emergency call device 40 creates third distribution information based on the second distribution information, and generates an activation signal for activating the wireless transmission / reception device 30. Send out (S2). The wireless transmission / reception apparatus 30 that has received the activation signal (S3) transmits a slave station calling signal to the slave station 50 (S5) and transmits a notification prohibition signal to the console 20 (S4). When the report prohibition signal (S4) is received, the console 20 prohibits reports such as automatic broadcasting and manual broadcast from the console 20, and the first distribution information created by the console 20 is transmitted to the wireless transmission / reception device 30. Transmission is prohibited. Further, when the broadcast from the console 20 is being performed, the broadcast is interrupted, and the report from the emergency call device 40 is given priority.
That is, in order to transmit emergency information quickly and reliably, the wireless transmission / reception device 30 prioritizes broadcast from the console 20 (fourth information), and broadcasts from the emergency notification device 40 (the fifth described later). Information) is transmitted to the slave station 50. Note that the broadcast from the console 20 that has been interrupted or canceled may be executed from the beginning or in the middle after the fifth information is broadcast from the emergency call device 40. Thereby, the broadcast from the console 20 is also performed reliably.

  When the slave station call signal (S5) is received, the called slave station 50 establishes a line from the standby (standby) state so far and enters a reportable state (S6).

After transmitting the slave station call signal (S5) to the slave station 50, the wireless transmission / reception device 30 enters a reportable state in which the voice signal (third distribution information) from the emergency call device 40 can be received and processed ( S7), a notification enable signal indicating that the notification is possible is transmitted to the emergency notification device 40 (S8). Upon receipt of the report enable signal (S8), the emergency call device 40 transmits an audio signal (third distribution information) to the wireless transmission / reception device 30 (S9). When receiving the audio signal S10 (third distribution information) from the wireless transmission / reception device 30, the wireless transmission / reception device 30 creates fifth distribution information based on the received third distribution information, and sends the fifth distribution information to the slave station 50. Then, the audio signal S11 which is the fifth distribution information is transmitted. When the audio signal S11 is transmitted, a report prohibition release signal (not shown) is transmitted to the console 20, and the report prohibition state of the console 20 is cancelled. When receiving the audio signal S11 (fifth distribution information), the slave station 50 outputs the sound of emergency information based on the audio signal S11 (fifth distribution information) from the speaker (S12).
As described above, a communication procedure and the like between the wireless transmission / reception device 30 and the slave station 50 are established. Therefore, compared to conventional voice communication in a wireless communication system, the time from the start of communication at the master station to the voice report at the slave station can be shortened, so the wireless communication system functions effectively even for urgent reports. Can be made.

Note that the present invention is understood not only as a system for executing the processing according to the present invention, but also as an apparatus and method, a program for realizing such a method and system, and a recording medium for recording the program. can do.
Further, the present invention may be configured such that the CPU performs control by executing a control program stored in a memory, or may be configured as a hardware circuit.
Furthermore, the present invention is not limited to the above-described embodiments, and can be implemented with various modifications. For example, the external system connected to the emergency call device 40 of the master station 10 is not limited to J-ALERT, and may be another system (for example, a system in a different region or a higher system), or an emergency call or the like. The reception is not limited to wireless and may be wired.

  10 .. Master station, 20 .. Console, 21 .. I / O unit, 22 .. Console control unit, 30 .. Wireless transceiver, 31 .. Base station radio unit, 22 .. Radio control unit, 40 ..Emergency call device 41..Receiving unit 42..Emergency call control unit 50..Slave station 51..Slave station radio unit 52..Slave station control unit 53..Speaker unit 55.・ Speaker, 110..., Master station, 120 .. console, 130 .. wireless transmission / reception device, 140 .. equipment for J-ALERT, 150 .. slave station.

Claims (4)

A wireless communication system comprising a slave station capable of outputting voice and a master station connected to the slave station by radio, transmitting delivery information from the master station to the slave station, and outputting the delivery information received by the slave station by voice There,
The master station receives a second distribution information from the outside and creates a third distribution information that is an audio signal based on the second distribution information from an external console that creates the first distribution information that is an audio signal . and emergency call device for, and transmits to the slave station by radio to create a fourth distribution information on the basis of the relevant Upon receiving the first distribution information first distribution information created in the console, in the emergency notification device When receiving the third distribution information created to create a fifth distribution information based on the third distribution information, the slave station by radio the fifth distributing information in preference to the fourth distribution information A wireless device for transmitting to
The slave station includes a radio receiving section for receiving the distribution information of the distribution information or the fifth of the fourth transmitted from the master station, the fourth distribution information or the fifth of the distribution information thus received based and outputs a voice,
The emergency call device transmits an activation signal to the wireless device when receiving the second distribution information,
Upon receiving the activation signal, the wireless device transmits a slave station calling signal to the slave station, and transmits a notification prohibition signal prohibiting transmission of the first distribution information to the console.
When the slave station receives the slave station call signal, it establishes a line from a standby state and enters a reportable state.
After transmitting the slave station call signal, the wireless device is in a reportable state in which the third distribution information from the emergency call device can be received and processed, and a report enable signal indicating that the report is possible To the emergency call device,
The emergency call device transmits the third distribution information to the wireless device after receiving the notification enable signal,
The said radio | wireless apparatus produces the said 5th delivery information based on the said 3rd delivery information from the said emergency call apparatus, and transmits to the said substation . When the wireless device receives the third distribution information from the emergency call device while transmitting the fourth distribution information to the slave station, the wireless device transmits the fourth distribution information that was being transmitted. The fifth distribution information is created based on the third distribution information from the emergency call device and transmitted to the slave station, and then the fourth distribution information whose transmission is interrupted is The wireless communication system according to claim 1, wherein the wireless communication system transmits data to or from the slave station . A console that is operated by an operator to input distribution information;
An emergency call device that receives distribution information at the receiver;
A wireless device that is connected to the console and the emergency call device, receives distribution information from these consoles and the emergency call device, and performs wireless transmission;
A slave station device that receives distribution information wirelessly transmitted from the wireless device and outputs voice;
The emergency call device transmits an activation signal to the wireless device upon receiving distribution information,
Upon receiving the activation signal from the emergency notification device, the wireless device transmits a slave station calling signal to the slave station, and transmits a notification prohibition signal prohibiting transmission of distribution information to the console.
When the slave station receives the slave station call signal, it establishes a line from a standby state and enters a reportable state.
After transmitting the slave station call signal, the wireless device is in a reportable state in which the distribution information from the emergency call device can be received, and a notification enable signal indicating the reportable state is sent to the emergency device. To the reporting device,
The emergency call device transmits the distribution information to the wireless device after receiving the report enable signal,
The wireless communication system, wherein the wireless device transmits distribution information from the emergency call device to the slave station . When the wireless device receives distribution information from the emergency call device while transmitting distribution information from the console to the slave station, transmission of the distribution information from the console that was being transmitted is interrupted. Then, the distribution information from the emergency call device is transmitted to the slave station, and then the distribution information from the console where the transmission is interrupted is transmitted to the slave station from the beginning or midway. The wireless communication system according to claim 3 .

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