JP2011227799A - Wireless communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless communication system that can avoid reproduction of unnecessary notification in a terminal station device and that can give effective notification when a center station device wirelessly communicates with the terminal station device.SOLUTION: A wireless communication system comprises a terminal station that can output notification information and a center station wirelessly connected to the terminal station, and transmits notification information from the center station to the terminal station and outputs the notification information received by the terminal station. The center station comprises a notification information creation unit that creates notification information to be notified to the terminal station. The terminal station comprises a reading output unit that reads out the notification information received at a terminal station wireless unit and outputs the information, a recording unit that records the notification information read out by the reading output unit, a reproduction unit that reproduces and outputs the notification information recorded in the recording unit, and a reproduction propriety determination unit that determines whether the notification information recorded in the recording unit to be reproduced or not based on a criterion set in the terminal station.

Description

  The present invention relates to a wireless communication system in which a center station device and a terminal station device communicate with each other wirelessly, for example, a broadcast wireless system such as a municipal disaster prevention wireless system and a regional disaster prevention wireless system. The broadcast 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. In addition to the municipal disaster prevention radio system, the regional disaster prevention radio system may have a broadcast function.

  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 a general broadcast radio system such as this municipal disaster prevention digital radio communication system, a center station is set up in an administrative agency, and a plurality of terminal station devices are installed outdoors or in facilities in the administrative jurisdiction. Broadcast information such as disaster-related information is transmitted from the device to these terminal station devices by broadcast radio, and the broadcast information received by each terminal station device is output from a speaker as a voice report. In a general broadcast radio system, broadcast information is wirelessly transmitted in a single direction from a center station apparatus to a plurality of terminal station apparatuses.

Further, the recording / playback function provided in association with the terminal station apparatus constituting the broadcast radio system has been used for reconfirming the contents of the already reported voice report. Specifically, if it is a normal report, the notification voice transmitted from the center station apparatus is loudly output in real time from a speaker connected to the terminal station apparatus via a wireless line, so that the terminal station apparatus Realize transmission of notification information to local general residents living in the vicinity. However, in consideration of the general public who could not listen to the loudspeaking report for some reason or convenience, the terminal station device outputs the loudspeaker at the same time as the reporting voice is sent to the storage unit in the terminal station device. Save the recording. A general resident who cannot hear the report contents clearly can go to the installation location of the terminal station device and replay the terminal station device to reconfirm the report content recorded in the terminal station device.
Or, if you are not in the vicinity of the terminal station device and you do not even know that there was a report, you will first receive a report by looking at the display unit etc. Recognize that. The general residents who have determined that listening is necessary can go to the place where the terminal station device is installed and listen to the contents of the report by playing back the terminal station device.

In addition, the terminal station devices that make up the broadcast radio system are installed outdoors and receive notification information by installing them indoors on a door-to-door basis. There is a door-to-door receiver that outputs. These two types of terminal station devices, for example, can be played back by a simple operation procedure when playing back recorded audio in consideration of operations by ordinary residents who are not familiar with the device. It has been realized with a configuration that takes into consideration.
Specifically, as an example, a playback switch is installed in the operation unit, and when the switch is pressed, playback is started in order from the most recently recorded notification voice. Further, the procedure is such that the second newly recorded notification voice is reproduced by pressing the switch again.

FIG. 8 shows a configuration example of a conventional digital broadcast radio system. The digital broadcast radio system shown in FIG. 8 includes a center station device 110, a plurality of terminal station devices 130 (1) to 130 (n), and a plurality of individual receivers 140 (1) to 140 (m). It is.
The center station device 110 includes a base station wireless transmission / reception device 101 that has a control unit 111, a wireless unit 112, and an antenna 113 and performs wireless communication, and an operation console 102 that is operated by an operator and receives various commands. It has been.
Each of the terminal station devices 130 (1) to 130 (n) includes a control unit 131, a wireless unit 132, an antenna 133, a terminal station body device 103 that performs wireless communication, a trumpet speaker 134 that outputs a loud sound, and And a recording / playback device 135 that records the reported voice and plays back and outputs the recorded content according to the operator's instructions. The recording / playback device 135 accepts the operator's operation and records and plays the reporting voice. And a monitor speaker 137 for outputting the reproduced sound to the operator.
Here, in each of the terminal station devices 130 (1) to 130 (n), the recording / reproducing device 135 is connected as an external device of the terminal station device main body 103. For example, it has the same function as the recording / reproducing device 135. The functional unit may be provided inside the terminal station apparatus main body 103 (for example, inside the control unit 131 in the terminal station apparatus main body 103).

  Each of the individual receivers 140 (1) to 140 (m) includes a recording / playback unit 141 that accepts an operator's operation and controls the recording / playback of the notification voice, and a monitor speaker 142 that outputs the voice to the operator. It has been.

  In the following Patent Document 1, importance information related to report information is wirelessly transmitted from a master station device to a slave station device, and the slave station device has high importance of report information based on the importance information. A wireless communication system for preferential storage is described. Further, in Patent Document 2 below, the center station device wirelessly transmits voice information and character information to the slave station device, and the slave station device receives voice information and character information, A wireless communication system is described in which a voice is output based on received voice information, and characters are displayed and output based on received character information.

JP 2005-244484 A JP 2007-259100 A

In the digital broadcast radio system as described above, for example, when a local general who missed the content of a report reproduces and listens to the recorded content recorded in the terminal station 130, the local general 130 playback operations are performed. When the reproduction operation is performed, the recorded sound is reproduced and output in order from the most recently recorded notification content to the oldest recorded notification content from the monitor speaker 137 of the terminal station.
9 and 10 show an operation example of the recording / playback function attached to the terminal station device 130 of the digital broadcast radio system. FIG. 9 is a diagram showing a recording operation sequence in the prior art. When a recording designation notification is received from the center station apparatus 110 to the terminal station apparatus 130, a notification voice is sent to the recording area of the storage unit of the terminal station apparatus 130. An example of saving is shown. In FIG. 9, the horizontal axis represents the recording area, and the vertical axis represents the elapsed time. When the terminal station device 130 receives the recording designation notification from the notification 1 in order, the notification contents are sequentially stored in the recording area. Here, when the recording operation continues, and when the recording area reaches the state where there is no free space, the recording area of the oldest saved notification 1 is deleted, and the recording content of the newest notification N is overwritten in that free space. Will be.

FIG. 10 is a diagram showing a reproduction operation sequence in the prior art, and shows an example of the order in which the notification voices stored in the recording area in FIG. 9 are reproduced. When the operator performs a reproduction operation, the contents of the report stored in the recording area are reproduced and output in order from the most recently recorded report N.
However, in such a configuration, for example, when there are a plurality of notification voices recorded in the terminal station device 130, they are played back in order from the latest recorded content. There is no problem if the report voice recorded in the terminal station device 130 is only the report voice requested by the operator. For example, the date and time when the voice report with recording designation is performed is a time point far past the present, and When the voice notification is kept in the terminal station device 130 without being erased, there is a problem in that the general public is allowed to listen even though the provided information is deteriorated.
Further, in an emergency disaster where the digital broadcast radio system is most utilized, an operator who is not familiar with the operation of the terminal station device 130 does not always execute the playback operation. However, it is necessary to easily provide only necessary information to the operator from a plurality of recording contents.

  The present invention has been made in view of such conventional circumstances, and is unnecessary in a terminal station apparatus when a center station apparatus and a terminal station apparatus (for example, an outdoor loudspeaker or a door-to-door receiver) communicate wirelessly. An object of the present invention is to provide a wireless communication system or the like that can avoid the reproduction of a report and perform an effective report.

A typical configuration of the present invention for solving the above problems is as follows. That is,
A wireless communication system comprising a terminal station capable of outputting broadcast information and a center station connected to the terminal station by radio, transmitting broadcast information from the center station to the terminal station, and outputting the broadcast information received by the terminal station There,
The center station includes a center station control unit, a center station radio unit that wirelessly communicates notification information created by the center station control unit to a terminal station, and a center station antenna for wireless communication with the terminal station,
The center station control unit includes a broadcast information creation unit that creates broadcast information to be broadcast to the terminal station,
The terminal station includes a terminal station antenna for wireless communication with a center station, a terminal station wireless unit that receives broadcast information wirelessly communicated from the center station, and a terminal station control unit,
The terminal station control unit reads out and outputs broadcast information received by the terminal station radio unit, a recording unit that records broadcast information read out by the read output unit, and reproduces broadcast information recorded in the recording unit A wireless communication system comprising: a reproduction unit that outputs; and a reproduction availability determination unit that determines whether or not to reproduce broadcast information recorded in the recording unit based on a determination condition set in the terminal station.

  According to the present invention, when reproducing the broadcast information recorded at the terminal station, the broadcast information to be notified to the general public from among a plurality of broadcast information that is stored even though it is unnecessary. Only can be reproduced and output.

The center station control unit may further include a recording designation information creating unit for creating recording designation information for designating whether or not the broadcast information is recorded at the terminal station. In this way, since it is possible to specify whether or not recording is required at the center station according to the content of the notification information, it is not necessary to record all the notification information received at the terminal station, and the recording area can be used effectively. .
In addition, the center station control unit may include a transmission time information creating unit that creates a transmission time for transmitting the broadcast information to the terminal station as transmission time information. In this way, each terminal station can determine whether or not to reproduce the broadcast information recorded in the recording unit based on the transmission time information. In addition, it is possible to determine whether or not to reproduce the same notification information at the same transmission time.
In addition, the center station control unit may include a reproduction time limit information creating unit that creates reproduction time limit information that is a time limit for reproducing the broadcast information recorded in the terminal station. If it does in this way, according to the contents of information information, the reproduction time limit of information information can be set up from a center station.
In addition, the center station control unit may include a reproducibility information creating unit that creates reproducibility information for setting whether to reproduce the broadcast information recorded in the terminal station. If it does in this way, according to the contents of information information, it can be set up whether the information information is reproducible from a center station.
The terminal station control unit may further include a reception time information creating unit that creates the reception time when the broadcast information is received as reception time information. In this way, each terminal station can determine whether or not to reproduce the broadcast information recorded in the recording unit based on each reception time information.

It is a figure which shows the structural example of the radio | wireless communications system in embodiment of this invention. It is a figure which shows the recording operation | movement sequence in 1st Example of this invention. It is a figure which shows the reproduction | regeneration operation | movement sequence in 1st Example of this invention. It is a figure which shows the recording operation sequence in 2nd Example of this invention. It is a figure which shows the reproduction | regeneration operation | movement sequence in 2nd Example of this invention. It is a figure which shows the recording operation sequence in 3rd Example of this invention. It is a figure which shows the reproduction | regeneration operation | movement sequence in 3rd 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 recording operation sequence in a prior art. It is a figure which shows the reproduction | regeneration operation | movement sequence in a prior art.

An embodiment according to the present invention will be described with reference to the drawings. In this embodiment, a case where the present invention is applied to a digital broadcast radio system which is a radio communication system related to disaster prevention such as municipalities is shown.
The digital broadcast communication system according to the present embodiment is used, for example, for reporting disaster-related information from an administrative institution to residents at the time of a disaster, and broadcast information transmitted by broadcast from a center station device. The data are received and output by a plurality of terminal station devices installed at predetermined locations. As a specific example, in a digital broadcast radio system for disaster prevention administration by the TDMA-TDD system which is a municipal digital disaster prevention radio communication system in a 60 MHz band (54 to 70 MHz), a center station apparatus and a terminal are used by using a broadcast radio line. It has a function of making a report with voice information, other code information, or the like with a station apparatus or the like.

In the digital broadcast radio system according to the present embodiment, for example, when a disaster occurs, the administrative organization notifies the residents of disaster-related information by simultaneous notification. Specifically, information related to disasters is provided to terminal stations installed outdoors, in general households, meeting places, schools, etc. in each area by using consoles and base station radio transceivers installed in the center station. In addition, information on emergency commands, information on evacuation advisories, and the like are transmitted as notification information based on non-speech information such as voice information by call or text information, and the notification information is transmitted to the residents.
Also, the terminal station device or the like connects or incorporates a recording / playback device, and performs processing for recording the contents of the report such as voice information received by adding the recording designation presence information from the center station device.
Also, in the terminal station device or the like, a recording / playback device is connected or built-in, and the recording time information (first time information) stored together with the recorded voice information and the current time when the operator performs the playback operation. Based on the time difference from the time information (second time information), the recording content to be played back is selected and output, and the playback sound is output from the monitor speaker provided in the terminal station device or the attached external connection box. Output.
Here, the audio information and recording in the present embodiment correspond to the notification information and recording in the present invention, respectively.
Note that the broadcast information transmitted by the center station apparatus is not limited to voice information, and various information may be used as recorded contents (including recorded contents) in the terminal station apparatus, for example, the center station apparatus. Data information, control information, etc. transmitted using a voice band between the terminal station apparatus and the like can be used.
In addition, as a communication system, for example, the terminal station apparatus may be applied to a fixed communication system in which the terminal station apparatus is fixedly installed, or the terminal station apparatus may be a mobile communication system such as a mobile phone. May be applied. In the present embodiment, a plurality of terminal station devices are installed in respective local locations, and a plurality of door-to-door receivers are installed, for example, in a residence in a municipality for each door (for each household). It is carried by the operator (owner).
In general, the direction of communication from a base station apparatus (in this embodiment, a center station apparatus) to a terminal station apparatus or the like is referred to as downlink, and from the terminal station apparatus or the like to the base station apparatus (in this embodiment, a center station apparatus). The direction of communication to is called up.

FIG. 1 shows a configuration example of a digital broadcast radio system according to the present embodiment. In the digital broadcast radio system according to the present embodiment, a center station device 10, a plurality of n terminal station devices 30 (1) to 30 (n), and a plurality of m individual receivers 40 ( 1) to 40 (m) are provided. Various numbers are used as the number n of the plurality of terminal station devices 30 (1) to 30 (n) and the number m of the plurality of individual receivers 40 (1) to 40 (m), respectively. Also good.
FIG. 1 also shows a wireless line 21 between the center station apparatus 10 and the terminal station apparatus 30 (1), a wireless line 22 between the center station apparatus 10 and the terminal station apparatus 30 (n), A wireless line 23 between the station device 10 and the individual receiver 40 (1) is shown.
In the present embodiment, since the configuration and operation of each terminal station device 30 (1) to 30 (n) are the same, only one terminal station device 30 (1) is provided with a reference numeral. In addition, since the configuration and operation of each of the individual receivers 40 (1) to 40 (m) are the same, only one of the individual receivers 40 (1) is given a reference numeral to indicate the configuration. is there.
Moreover, although this Embodiment demonstrates mainly the case where it communicates between the center station apparatus 10 and the terminal station apparatus 30 (1) -30 (n), for example, the terminal station apparatus 30 (1)- The same configuration and operation as 30 (n) can also be applied to the individual receivers 40 (1) to 40 (m).

The center station apparatus 10 includes a center station control unit 11, a center station radio unit 12, a center station antenna 13, and a base station radio transmission / reception apparatus 1 that performs radio communication, and receives various commands operated by an operator. A console 2 is provided. The console 2 is used to send voice signals such as emergency information by the operator to the base station radio transmitter / receiver 1, and input means such as a keyboard for the operator to input, an LCD display, etc. Display output means. The center station radio unit 12 transmits an audio signal and a control signal to the terminal station device 30 by radio. The center station antenna 13 is an antenna for wireless communication with the terminal station.
The center station control unit 11 includes a broadcast information creation unit that creates broadcast information to be broadcast to the terminal station, a record designation information creation unit that creates record designation information that designates whether or not the broadcast information is recorded at the terminal station, A transmission time information creating unit that creates a transmission time for transmitting broadcast information to the terminal station as transmission time information, a reproduction deadline information creating unit that creates reproduction deadline information that is a deadline for reproducing broadcast information recorded at the terminal station, A reproducibility information creating unit that creates reproducibility information for setting whether or not to broadcast the broadcast information recorded at the terminal station. The transmission time information is determination information for determining whether to reproduce the broadcast information recorded in the terminal station.
As a hardware configuration, the center station control unit 11 includes a CPU (Central Processing Unit) and a memory for storing an operation program of the control unit 11, and the CPU operates according to the operation program.

Each of the terminal station devices 30 (1) to 30 (n) includes a terminal station control unit 31, a terminal station radio unit 32, a terminal station antenna 33, and a terminal station main unit 3 that performs radio communication, and a sound is output as a loud sound. A trumpet speaker 34 for recording, and a recording / reproducing device 35 for recording and reproducing the recorded content by operating the operator. The recording / reproducing apparatus 35 is provided with a recording / reproducing unit 36 that accepts the operation of the operator and controls recording / reproducing of the notification sound, and a monitor speaker 37 that outputs the reproduced sound to the operator. The recording / playback unit 36 is provided with a recording area (not shown) which is a storage unit for recording the report voice. The terminal station antenna 33 is an antenna for wireless communication with the center station. The terminal station wireless unit 32 receives broadcast information wirelessly communicated from the center station.
The terminal station control unit 31 reads and outputs the broadcast information received by the terminal station radio unit 32, a recording unit that records the broadcast information read by the read output unit, and the broadcast information recorded in the recording unit. A reproduction unit that reproduces and outputs; a reproduction availability determination unit that determines whether to reproduce the notification information recorded in the recording unit based on the determination condition set in the terminal station based on the determination information transmitted from the center station; Is provided. The reproduction permission / inhibition determining unit can determine whether or not to reproduce based on the determination information transmitted from the center station.
As a hardware configuration, the terminal station control unit 31 includes a CPU (Central Processing Unit) and a memory that stores an operation program of the terminal station control unit 31, and the CPU operates according to the operation program.
The terminal station control unit 31 may further include a reception time information creation unit that creates the reception time when the broadcast information is received as reception time information. In this way, each terminal station can determine whether or not to reproduce the broadcast information recorded in the recording unit based on each reception time information.

Here, in the present embodiment, the recording / reproducing apparatus 35 is connected as an external device of the terminal station apparatus main body 3. For example, a functional unit having the same function as the recording / reproducing apparatus 35 is provided. (For example, the inside of the control unit 31 in the terminal station apparatus body 3).
Each of the individual receivers 40 (1) to 40 (m) includes a recording / playback unit 41 that accepts the operation of the operator and controls the recording / playback of the notification voice, and a monitor speaker 42 that outputs the voice to the operator. It has been.
Here, in the present embodiment, a plurality of terminal station devices 30 (1) to 30 (n) and a plurality of individual receivers 40 (1) to 40 (m) are directly connected to the center station device 10. A system configuration connected via wireless lines 21 to 23 is shown. For example, a relay station device is provided, and the center station device 10 and a plurality of terminal station devices 30 (1) to 30 (n) and a plurality of individual receptions are provided. A system configuration in which the devices 40 (1) to 40 (m) are connected via a relay station device may be used.

(First embodiment)
A first embodiment of the present invention will be described. In this example, the base station radio transmission / reception device 1 of the center station device 10 is connected to the terminal station devices 30 (1) to 30 (n), the individual reception devices 40 (1) to 40 (m), and the radio lines 21 to 23. Connected. In this example, the terminal station device 30 (1) receives a voice notification with a recording designation (notification information with a recording designation), outputs it loudly from the trumpet speaker 34, and simultaneously records the content of the notification by the recording / playback device 35. Although recording is performed in the reproducing unit 36, the time when the notification is received is recorded in the recording / reproducing unit 36 at the same time. In this way, the time when the notification is received is recorded in the recording area of the storage unit of the terminal station device 30 together with the recording of the notification content.
Here, in the present embodiment, for example, a determination condition such as “the content of a report that has passed 24 hours or more after recording is not reproduced” is registered in the recording / reproducing unit 36 in advance. Registration of the determination condition can be performed by an operator from an operation input unit (not shown) of the terminal station 3, for example.

  Next, the recording operation of the report voice in the recording / playback unit 36 will be described with reference to FIG. FIG. 2 is a diagram showing a recording operation sequence in the first embodiment of the present invention. In FIG. 2, the horizontal axis represents the recording area, and the vertical axis represents the elapsed time. When the terminal station device 30 receives the recording designation notification 1 from the state where no report voice is recorded in the recording area of the recording / playback unit 36, the report is made in order from the beginning of the recording area of the recording / playback unit 36. Audio is recorded. At this time, the recording time (first time) of the information is also recorded for each recording information. Next, when the recording designation presence notification 2 is received, the recording information and the recording time are recorded in the same manner from the area next to the recording area where the notification 1 is recorded. In this way, for example, in FIG. 2, “Recording time of report 1” is recorded as “8:00 a day (8:00)”, and recording time of report 2 is recorded as “10:00 a day”. “2 day 20:00” is recorded as the recording time of N.

Next, the playback operation of the recording / playback unit 36 when the operator performs a playback operation in a state where information is stored in the recording area as shown in FIG. 2 will be described with reference to FIG. FIG. 3 is a diagram showing a playback operation sequence in the first embodiment of the present invention. In FIG. 2, when the notification voice is recorded up to N times, the operator tries to play back the recorded content. It is a figure describing a reproduction operation.
When the operator performs a reproduction operation at 23:00 on the 2nd (23:00 on the 2nd), the reproduction is started from the notification N at the recording time 20:00 on the 2nd, which is the latest recording content. When the reproduction of the notification N is completed, the notification N-1 at the recording time 2 day 18:00, which is the next new recording content, is subsequently reproduced. When the reproduction of the notification 4 at 15:00 on the recording time 2 day is completed by the same reproduction operation, the recording content to be reproduced next should be the notification 3. However, the recording time that is the first time of the notification 3 is 12:00 on the first day, and the second time from the first time on the second time that the operator performs the reproduction operation is 23:00. 24 hours or more have passed until the time of, so the determination condition registered in the recording / playback unit 36 in advance is “the contents of the report that have passed 24 hours since recording are not played back”. The recorded content after report 3 will not be played.

Thus, in the first embodiment as shown in FIG. 2 and FIG. 3, the content of the report that has passed for a certain period from the recording time can be excluded from the information that can be reproduced by the operator. The operator never hears until there is no past recording.
In this example, the first time, which is the time at which the terminal station device 30 acquires the notification, is used as the recording time. However, the first time may be used as the transmission time from the center station device 10. In this case, the transmission time information is transmitted from the center station device 10 together with the notification content to the terminal station device 30 and stored in the recording area in the same manner as in the above embodiment, so that the notification content after a certain period of time from the transmission time is It can be excluded from information that can be reproduced by a person.

(Second embodiment)
Next, a second embodiment of the present invention will be described. In the first embodiment, based on the difference between the recording time or transmission time (first time) and the current time (second time) at which the recorded content is reproduced, for example, the recorded content 24 hours before the current time. However, in this embodiment, the playback condition can be arbitrarily set from the center station apparatus 10 side, and once it is determined whether or not playback is possible. The reproduction conditions set in the terminal station 30 can be changed or enabled or disabled.

  An example of the recording operation in the second embodiment will be described with reference to FIG. FIG. 4 is a diagram showing a recording operation sequence in the second embodiment of the present invention, and is a diagram showing a recording operation of the notification voice in the recording / reproducing unit 36. In FIG. 4, the horizontal axis represents the recording area, and the vertical axis represents the elapsed time. The recording operation of the second embodiment is almost the same as the recording operation described in the first embodiment, but the recording time is recorded for each report content in the first embodiment. The reproduction time limit information is generated on the device 10 side, and the reproduction time limit information is transmitted from the center station device 10 together with the notification content to the terminal station device 30 and stored in the recording area of the terminal station device 30 as in the first embodiment. It is said.

  As shown in FIG. 4, when the terminal station device 30 receives the recording designation notification 1 from the state where no report voice is recorded in the recording area of the recording / playback unit 36, the recording / playback unit 36 performs the recording. Notification voices are recorded in order from the top of the area. At this time, the reproduction time limit information of the information is also recorded for each recording information. Next, when the recording designation presence notification 2 is received, the recording information and the reproduction time limit information are similarly recorded from the area next to the recording area where the notification 1 is recorded. In this way, for example, in FIG. 4, “24:00” per day is recorded as the playback deadline of notification 1, “24:00” per day is recorded as the playback deadline of notification 2, and the playback deadline of notification N "2 day 24:00" is recorded.

Next, the playback operation of the recording / playback unit 36 when the operator performs a playback operation in a state where information is stored in the recording area as shown in FIG. 4 will be described with reference to FIG. FIG. 5 (a) is a diagram showing a reproduction operation sequence in the second embodiment of the present invention. In FIG. 4, when the notification voice is recorded up to N times, the operator tries to reproduce the recorded contents. It is a figure which shows the reproduction | regeneration operation | movement at the time of having performed.
If the operator performs a playback operation at 11:00 on the 2nd, the playback time limit information of the notification N that is the latest recording content is referred to, and since the playback time limit “24:00 24:00” has not been reached, the playback is not performed. Be started. When the reproduction of the message N is completed, the reproduction time limit information of the next recording N, which is the next new recording content, is referred to, and since the reproduction time limit “2 day 24:00” has not been reached, the reproduction is started. The When the reproduction of the notification 4 is completed by the same reproduction operation, the recorded content to be reproduced next should be the notification 3. However, since the reproduction deadline of the notification 3 is “24:00 a day” and the reproduction deadline has already passed at 11:00 on the second day when the operator performs the reproduction operation, The recorded content is not played back.

  In this way, in the example as shown in FIG. 4 and FIG. 5A, the expiration date of the information that can be reproduced by the operator of the terminal station device 30 can be set on the center station device 10 side. The operator never listens to unnecessary past recordings. Moreover, it is also possible to change and set the regeneration deadline for each report according to the contents for each report.

Further, in this example, the expiration date for replaying the recorded content can be arbitrarily set from the center station apparatus 10 side. However, in some cases, a request to change the playback time limit or a request to invalidate the recorded content Is assumed. In this case, it is possible to change and retransmit the reproduction time limit information transmitted from the center station device 10 for each notification unit.
FIG. 5B is a diagram illustrating a reproduction operation when the reproduction deadline of the notification 3 is changed at the time when the recording of the notification voice is performed up to the Nth time. In this example, the reproduction deadline information of the notification 3 that was the reproduction deadline 1 day 24:00 is changed to the reproduction deadline 2 day 24:00, so in the above embodiment, only the message N to the message 4 can be reproduced. In contrast, it is possible to replay up to Report 3.

(Third embodiment)
In the second embodiment, the expiration date during which the recorded content can be reproduced can be arbitrarily set from the center station apparatus side. However, in some cases, it is assumed that the recorded content is invalidated and not reproduced. In the third embodiment, regardless of the reproduction time limit of the recorded content stored in the terminal station device 30, the center station device 10 can arbitrarily set validity or invalidity.

  An example of a recording operation in the third embodiment will be described with reference to FIG. FIG. 6 is a diagram showing a recording operation sequence in the third embodiment of the present invention, and is a diagram showing a recording operation of the report voice in the recording / reproducing unit 36. In FIG. 6, the horizontal axis represents the recording area, and the vertical axis represents the elapsed time. The recording operation of the third embodiment is almost the same as the recording operation described in the second embodiment, but in this embodiment, the playback capability information is generated on the center station device 10 side, and the playback capability information is received from the center station device 10. The data is transmitted to the terminal station device 30 and stored in the recording area of the terminal station device 30 as in the second embodiment.

  As shown in FIG. 6, when the terminal station device 30 receives the recording designation presence notification 1 from the state where no notification voice is recorded in the recording area of the recording / reproducing unit 36, the recording / reproducing unit 36 performs the recording. Notification voices are recorded in order from the top of the area. At this time, the reproduction time limit information of the information is recorded for each recording information. Next, when the recording designation presence notification 2 is received, the recording information and the reproduction time limit information are similarly recorded from the area next to the recording area where the notification 1 is recorded. In this way, for example, in FIG. 6, “24:00” per day is recorded as the playback deadline for notification 1, “24:00” per day is recorded as the playback deadline for notification 2, and the playback deadline for notification N "2 day 24:00" is recorded.

  Next, as shown in FIG. 6, in a state where information is stored in the recording area, the recording / playback unit when the operator executes the playback operation when the playback prohibition control information has not arrived from the center station device 30. The reproduction operation 36 will be described with reference to FIG. FIG. 7A is a diagram showing a reproduction operation sequence in the third embodiment of the present invention. In FIG. 6, when the recording of the notification voice is performed up to the Nth time, the reproduction prohibition control from the center station device 30 is performed. It is a figure which shows reproduction | regeneration operation | movement when an operator tries to reproduce | regenerate recorded content when information has not arrived. In this case, similar to the case of FIG. 5A, the reproduction from the notification N to the notification 4 is performed.

FIG. 7B is a diagram illustrating a reproduction operation when the operator tries to reproduce the recorded content at the time when the recording of the notification voice is performed up to the Nth time. This is the state at the time when the reproduction prohibition control information arrives from the center station device 30. The playability information can be transmitted to the terminal station device together with the content of each report, but can also be transmitted to the terminal station device separately from the content of the report. In addition, for example, by the notification N, it is possible to transmit the reproduction permission / prohibition information of the notification 2.
When the operator performs a reproduction operation at 11:00 on the 2nd, each setting from the notification N, which is the latest recording content, to the notification 4 within the reproduction deadline, is referred to. Here, since the setting of the notification N is “reproduction prohibited”, reproduction is not performed. In the example of FIG. 7 (a), notification N to notification 4 are reproduced, but in the example of FIG. 7 (b), notification N-1 to notification 4 excluding notification N are reproduced.

In the above-mentioned first to third embodiments, all reports from the center station are recorded designation notifications. However, when all reports are recorded, a recording designation notification (record designation information) is sent. Can be omitted.
In addition, the present invention is understood not only as a system for executing 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.

  1 ························································································································································································· Antenna 21 .. radio link 22 .. radio link 23 .. radio link 30 .. terminal station device 31.. Terminal station control unit 32.. Terminal station radio unit 33. 34..Trumpet speaker, 35..Recording / reproducing device, 36..Recording / reproducing unit, 37..Monitor speaker, 40..Receiver by door, 41..Recording / reproducing unit, 42..Monitor speaker.

Claims (1)

A wireless communication system comprising a terminal station capable of outputting broadcast information and a center station connected to the terminal station by radio, transmitting broadcast information from the center station to the terminal station, and outputting the broadcast information received by the terminal station There,
The center station includes a center station control unit, a center station radio unit that wirelessly communicates notification information created by the center station control unit to a terminal station, and a center station antenna for wireless communication with the terminal station,
The center station control unit includes a broadcast information creation unit that creates broadcast information to be broadcast to the terminal station,
The terminal station includes a terminal station antenna for wireless communication with a center station, a terminal station wireless unit that receives broadcast information wirelessly communicated from the center station, and a terminal station control unit,
The terminal station control unit reads out and outputs broadcast information received by the terminal station radio unit, a recording unit that records broadcast information read out by the read output unit, and reproduces broadcast information recorded in the recording unit A wireless communication system comprising: a reproduction unit that outputs; and a reproduction availability determination unit that determines whether or not to reproduce broadcast information recorded in the recording unit based on a determination condition set in the terminal station.

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