JP5094581B2 - Notification broadcasting system - Google Patents

Description

  The present invention relates to a notification broadcasting system for performing notification broadcasting.

  Notification broadcasting systems for performing various types of notification broadcasting from a center to a plurality of dwelling units are widespread. This notification broadcasting system is generally configured by connecting a center device arranged on the center side and a receiver installed in each dwelling unit via a transmission line such as CATV. Then, when performing general broadcasts such as holding local events or emergency broadcasts in the event of a fire or earthquake, the center device transmits a notification broadcast signal via a transmission line, and the receiver receives the notification broadcast signal. Then, the announcement broadcast is output by voice through a speaker (see, for example, Patent Document 1).

  In this announcement broadcasting system, in consideration of the possibility that the user cannot listen to the broadcast for reasons such as absence when the announcement broadcast is performed, a recording / playback function for recording and reproducing the announcement broadcast a predetermined number of times Is provided in the receiver. In this case, when the announcement broadcast is performed, the announcement broadcast is automatically recorded by the recording / reproducing function of the receiver, and when the reproduction instruction is received by the user's operation, the recorded announcement broadcast is reproduced (for example, Patent Document 2).

Japanese Patent Laid-Open No. 9-8753 JP 2006-261958 A

  However, in the above-described conventional announcement broadcasting system, when the user can listen to the announcement broadcast, the user can easily grasp the date and time by looking at a calendar or a clock. However, if you listen to the recorded announcement broadcast, you cannot know when the announcement broadcast was recorded. It was difficult to judge.

  In addition, in order to prevent such problems, the receiver is provided with a clock function, the date and time when the notification broadcast is performed is specified using this clock function, and information indicating the date and time is provided together with the notification broadcast. A system that records and plays back when necessary is also conceivable. However, in this case, it is necessary that the clock function of the receiver is accurate to some extent, and it is necessary to provide a time correction function for each receiver. For this reason, the configuration of the receiver is complicated and the cost is increased. Etc. are not preferred.

  The present invention has been made in view of the above, and when a user listens to a notification broadcast recorded by a receiver, the notification broadcast was recorded at any time while maintaining a simple configuration of the receiver. It is an object of the present invention to provide an announcement broadcasting system that allows a user to easily grasp whether a message is a thing.

In order to solve the above-described problems and achieve the object, the present invention as claimed in claim 1 is configured such that a transmission unit that transmits a notification broadcast signal and a reception unit that receives the notification broadcast signal are transmitted via a transmission line. In the notification broadcasting system configured to be connected to each other, the transmission means converts the date and time corresponding to the reception timing into audio as the date and time related information for broadcasting information on the reception timing of the notification broadcast in the reception means. Date and time transmission means for transmitting the configured date and time information to the reception means via the transmission line is provided, and the reception means is configured to receive the reception timing based on the date and time related information transmitted from the date and time transmission means. set the date and time broadcasting means for broadcasting the information about only the date and time transmitting means acquires the date and time information corresponding to the broadcast date and time of the announcement broadcast signal by a predetermined method, The acquired date and time information is added before or after the notification broadcast signal, and the notification broadcast signal to which the date and time information is added is transmitted to the receiving means. The date and time broadcast means is configured to send a notification broadcast signal based on the notification broadcast signal. Before or after, the broadcast date and time is broadcast based on the date and time information added to the notification broadcast signal, and when the general notification broadcast and the emergency notification broadcast are set as the notification broadcast, the target of the notification broadcast is the general broadcast The date and time transmission means adds the date and time related information to the announcement broadcast signal corresponding to the general announcement broadcast only when it is specified by a predetermined method that the broadcast is an announcement broadcast .

According to a second aspect of the present invention, there is provided a notification broadcasting system configured by connecting a transmission unit for transmitting a notification broadcast signal and a reception unit for receiving the notification broadcast signal via a transmission line. In the means, as the date and time related information for broadcasting the information related to the reception timing of the notification broadcast in the receiving means, the date and time information configured by voiced the date and time corresponding to the reception timing is transmitted through the transmission line. Date and time transmission means for transmitting to the reception means is provided, and the reception means includes a date and time broadcasting means for broadcasting information on the reception timing based on the date and time related information transmitted from the date and time transmission means, and the transmission means. and recording and playback means for recording and reproducing the transmitted the announcement broadcast signal provided, the date and time transmitting means to respond to the broadcast date and time of the announcement broadcast signal The date and time information is acquired by a predetermined method, the acquired date and time information is added before or after the notification broadcast signal, and the notification broadcast signal to which the date and time information is added is transmitted to the receiving unit. Before or after the announcement broadcast signal based on the announcement broadcast signal, broadcast the broadcast date and time based on the date and time information added to the announcement broadcast signal, and the recording / reproducing means receives the announcement broadcast signal from the transmission means. In the case of recording the received announcement broadcast signal and the date and time information based on the date and time related information received from the transmitting means, and when the reproduction of the recording and reproducing means is instructed by a predetermined method, Broadcasting based on the date and time information recorded by the recording / reproducing means before or after the notification broadcasting, while performing the notification broadcasting based on the notification broadcasting signal recorded by the recording / reproducing means. When the general broadcast and the emergency broadcast are set as the broadcast, the date and time only when the target of the broadcast is specified by the predetermined method. The transmission means adds the date and time related information to a notification broadcast signal corresponding to the general notification broadcast.

According to the first aspect of the present invention, based on the date / time related information transmitted from the transmission unit, the reception unit automatically broadcasts information related to the reception timing. Therefore, there is no user at the time of receiving and outputting the announcement broadcast, and even when the recorded announcement broadcast is played back and listened to, it is easy and accurate to know when the announcement broadcast was recorded. Therefore, it is possible to determine whether or not the content of the notification broadcast is still valid at that time, and the effectiveness of the notification broadcast can be enhanced.
In addition, the date and time broadcast signal is automatically inserted in the transmission means, and the broadcast date and time is automatically reproduced based on the date and time broadcast signal in the reception means. Therefore, in addition to the effect similar to that of the first aspect, since it is not necessary for the receiving means to have a clock function, the structure of the receiving means can be easily maintained, and an increase in cost can be prevented.
In addition, only when it is specified by a predetermined method that the target of the announcement broadcast is a general announcement broadcast, the date and time related information is added to the announcement broadcast signal, or the broadcast date and time is broadcasted. By outputting the date / time information to the broadcast, it is possible to prevent a situation in which the transmission of the emergency information is delayed, and it is possible to output the date / time information in consideration of user convenience.

According to the second aspect of the present invention, based on the date / time related information transmitted from the transmission unit, the reception unit automatically broadcasts information related to the reception timing. Therefore, there is no user at the time of receiving and outputting the announcement broadcast, and even when the recorded announcement broadcast is played back and listened to, it is easy and accurate to know when the announcement broadcast was recorded. Therefore, it is possible to determine whether or not the content of the notification broadcast is still valid at that time, and the effectiveness of the notification broadcast can be enhanced.
In addition, the date and time broadcast signal is automatically inserted in the transmission means, and the broadcast date and time is automatically reproduced based on the date and time broadcast signal in the reception means. Therefore, in addition to the effect similar to that of the first aspect, since it is not necessary for the receiving means to have a clock function, the structure of the receiving means can be easily maintained, and an increase in cost can be prevented.
Also, since the broadcast date / time is broadcast only when the playback of the recording / playback means is instructed, the date / time information can be output only at the time of recording / playback without outputting the date / time information at the time of the announcement broadcast immediately after reception, and the user The user can be prevented from bothering the date and time information when the date and time can be easily identified by looking at the calendar or clock without looking at the date and time information. Date and time information can be output.
In addition, only when it is specified by a predetermined method that the target of the announcement broadcast is a general announcement broadcast, the date and time related information is added to the announcement broadcast signal, or the broadcast date and time is broadcasted. By outputting the date / time information to the broadcast, it is possible to prevent a situation in which the transmission of the emergency information is delayed, and it is possible to output the date / time information in consideration of user convenience.

  Embodiments of a notification broadcasting system according to the present invention will be described below with reference to the accompanying drawings. However, the present invention is not limited by these embodiments.

[Embodiment 1]
First, the first embodiment will be described. This form is a form for transmitting a date / time broadcast signal that is formed by sounding the date / time from the center device side to the receiver side, a form for outputting the date / time information only at the time of recording / playback without being output at the time of the announcement broadcast immediately after reception, and This is a form in which the date and time information is output only at the time of general announcement broadcasting, not at the time of emergency broadcasting.

(Constitution)
First, the configuration of the notification broadcasting system according to Embodiment 1 will be described. FIG. 1 is a block diagram showing a configuration of a notification broadcasting system according to the present embodiment. As shown in FIG. 1, the notification broadcasting system 1 transmits a center device 10 disposed on the center side, a receiver 20 disposed in each dwelling unit, and a signal transmitted from the center device 10 to the receiver 20. A transmission system 40 is provided. In addition, except the structure which mentions specially, the center apparatus 10, the receiver 20, and the transmission system 40 can be comprised similarly to the conventional notification broadcasting system.

(Configuration-center device 10)
Among these, the center apparatus 10 transmits an announcement broadcast signal, and corresponds to the transmission means in the claims. The center device 10 includes an operation unit 11, a display unit 12, a microphone 13, a BGM source 14, a memory 15, a date / time circuit 16, a transmission unit 17, and a control unit 18.

  The operation unit 11 is an operation unit for performing various operations on the center device 10 and includes, for example, various switches (not shown). The display unit 12 is a display unit for displaying necessary information toward the operator, and includes, for example, a monitor and a display lamp (not shown). The microphone 13 is a voice input means for inputting voice for announcement broadcasting. The BGM source 14 is sound source means that becomes a sound source of background music for announcement broadcasting. The memory 15 is a recording unit that records information necessary for various controls of the center device 10. The date / time circuit 16 is date / time means for outputting date / time information including date and time. The transmission unit 17 is a transmission unit that transmits the notification broadcast signal to the head end 41. The control unit 18 is a control unit that controls each unit of the center device 10, and includes, for example, a CPU (Central Processing Unit) (not shown) and a program that is interpreted and executed on the CPU (control). The same applies to part 30). The control unit 18 includes a date / time transmission control unit 18a that performs transmission control of date / time information in terms of functional concept. The date / time transmission control unit 18a corresponds to the date / time transmission means in the claims.

(Configuration-Receiver 20)
Next, the receiver 20 of FIG. 1 will be described. The receiver 20 receives an announcement broadcast signal and corresponds to the receiving means in the claims. The receiver 20 includes a demodulating unit 21, an audio switching unit 22, an audio recording unit 23, a volume adjusting unit 24, an amplifier 25, a speaker 26, an operation unit 27, a display unit 28, a memory 29, a control unit 30, and an antenna 31. It is prepared for.

  The demodulation unit 21 is a notification broadcast demodulation unit that demodulates the notification broadcast signal transmitted from the center device 10 and the FM broadcast wave received by the antenna 31, and outputs the audio information to the audio switching unit 22 and transmits the control information. Output to the control unit 30. The audio switching unit 22 outputs the audio information output from the demodulation unit 21 or the audio signal output from the demodulation unit to the audio recording unit 23, or the audio information output from the demodulation unit 21 or the audio recording unit 23. This is a voice switching means for outputting to the volume adjusting unit 24. The volume adjusting unit 24 adjusts the volume of the audio information output from the audio switching unit 22 and outputs it to the amplifier 25. The audio information is amplified by the amplifier 25 and then output from the speaker 26. The operation unit 27 is an operation unit for performing various operations on the receiver 20. The display unit 28 is display means for displaying required information to the user. The memory 29 is a recording unit that records information necessary for various controls of the receiver 20. The control unit 30 is a control unit that controls each unit of the receiver 20. The control unit 30 includes a date / time reproduction control unit 30a in terms of functional concept. This date / time reproduction control unit 30a corresponds to the date / time broadcasting means in the claims.

  FIG. 2 is a front view of the receiver 20. The receiver 20 is configured such that each part of the receiver 20 except for the operation unit 27, the display unit 28, and the antenna 31 is housed in a rectangular box-shaped housing. Specifically, the operation unit 27 includes an FM broadcast selection switch 27a for selecting an FM broadcast, an announcement reproduction switch 27b for instructing reproduction of a recorded announcement broadcast, and a volume for adjusting the broadcast volume. A switch 27c is provided. Specifically, the display unit 28 includes a power indicator lamp 28a that is turned on when the power is turned on, an emergency broadcast indicator lamp 28b that is lit or blinked during emergency broadcasting, and a general broadcast indicator lamp 28c that is lit or blinked during ordinary broadcasting. The antenna 31 is disposed on the side of the housing.

(Configuration-transmission system 40)
Returning to FIG. 1, the transmission system 40 includes a head end 41, a transmission line 42 extending from the head end 41 to the receiver 20 of each dwelling unit, and an amplifier 43, a distribution amplifier 44, a distribution disposed in the transmission line 42. A device 46 and a protector 48 are provided. The head end 41 is an amplification transmission unit that receives a signal transmitted from the transmission unit 17 of the center device 10, level-amplifies the signal, and sends the signal to the transmission line 42. The transmission line 42 is a transmission line that transmits a notification broadcast signal. For example, a CATV transmission line (coaxial cable) 42 that transmits a CATV signal is used. The amplifier 43 is an amplifying unit that amplifies a signal flowing through the transmission line 42. The distribution amplifier 44 is distribution amplification means for amplifying a signal and distributing the amplified signal to each dwelling unit. The distributor 46 is distribution means for distributing the signal amplified by the distribution amplifier 44 toward each dwelling unit. The protector 48 is provided in each dwelling unit and controls a DC component that reaches the receiver 20 on the transmission line 42.

(Processing-date correction processing)
Next, processing in the notification broadcasting system 1 configured as described above will be described. First, date correction processing in the center apparatus 10 will be described. A flowchart of this date and time correction processing is shown in FIG. The date / time transmission control unit 18a of the center apparatus 10 performs date / time correction of the date / time circuit 16 every time the date / time correction timing at a predetermined interval arrives (step SA-1, Yes) (step SA-2). For example, an AM or FM radio broadcast is received by a known antenna and reception circuit (not shown), and the date / time correction of the date / time circuit 16 is corrected based on a time signal detected from the radio broadcast. Alternatively, the date correction of the date / time circuit 16 may be performed based on the Japanese standard time acquired by a known radio clock function. This completes the date correction process.

(Processing-Notification broadcast processing in the center device)
Next, notification broadcast processing in the center apparatus 10 will be described. A flowchart of this notification broadcast processing is shown in FIG. The operator on the center side inputs arbitrary audio information using the microphone 13 and the BGM source 14 of the center apparatus 10 in FIG. At this time, the operator uses the operation unit 11 to specify whether the notification broadcast is a general broadcast or an emergency broadcast, and when the broadcast is a general broadcast, inputs the scheduled broadcast date and time. General broadcast is a method that does not require urgency, for example, local event information or regular broadcast, and emergency broadcast is a broadcast that requires urgency, for example, disaster information. Further, the operator uses the operation unit 11 to specify the receiver 20 that is the reception destination.

  The control unit 18 of the center apparatus 10 that has received these various inputs (step SB-1, Yes) determines whether the notification broadcast is a general broadcast or an emergency broadcast based on the content specified by the operator (step SB1). SB-2) If it is determined that the broadcast is an emergency broadcast (step SB-2, Yes), the unique address of the receiver 20 designated by the operator is acquired from the memory, and this unique address and the emergency broadcast are obtained. A broadcast command including information for specifying this is generated (step SB-3). The broadcast command and the audio information input by the operator are modulated on a carrier having a predetermined frequency to generate a notification broadcast signal. The notification broadcast signal is transmitted to the head end 41 via the transmission unit 17. Transmit (step SB-4).

  On the other hand, when it is determined that the broadcast is a general broadcast (step SB-2, No), the control unit 18 acquires the unique address of the receiver 20 designated by the operator from the memory, and the unique address and the general broadcast. A broadcast command including information for specifying this is generated (step SB-5). Then, the broadcast command and the audio information input by the operator are recorded in the memory 15 (step SB-6). Thereafter, the control unit 18 monitors whether or not the scheduled broadcast date and time designated by the operator has arrived based on the date and time information from the date and time circuit 16 (step SB-7), and when the scheduled broadcast date and time has arrived. (Step SB-7, Yes), the broadcast command and audio information are acquired from the memory 15. At this time, the date / time transmission control unit 18a acquires the date / time information at that time from the date / time circuit 16, and inserts the date / time information before the voice information (step SB-8). This date / time information corresponds to the date / time related information in the claims. Then, the control unit 18 generates a notification broadcast signal by modulating the broadcast command and the audio information in which the date / time information is inserted on a carrier having a predetermined frequency, and transmits the notification broadcast signal to the transmission unit 17. To the head end 41 (step SB-4). Thus, the notification broadcast process in the center device 10 is completed.

(Processing-Notification broadcast processing at the receiver)
Next, notification broadcast processing in the receiver 20 will be described. A flowchart of this notification broadcast processing is shown in FIG. The head end 41 that has received the notification broadcast signal transmitted by the transmission process described above transmits the notification broadcast signal via the transmission line 42. The notification broadcast signal transmitted in this way is amplified or distributed by the amplifier 43, the distribution amplifier 44, or the distributor 46, and then arrives at the protector 48 of each dwelling unit and passes through the protector 48. A signal is input to the receiver 20.

  In the receiver 20, the input notification broadcast signal is demodulated by the demodulation unit 21 (step SC- 1), the broadcast command is input to the control unit 30, and the audio information is transmitted through the audio switching unit 22. The data is output to the adjustment unit 24 and the audio recording unit 23. The control unit 30 determines whether or not the address included in the broadcast command matches its own address recorded in advance in the memory 29 (step SC-2), and if not (step SC-2). , No), the notification broadcast process is terminated, and if they match (step SC-2, Yes), a control signal is output to the audio switching unit 22 so that audio information is output. The voice switching unit 22 that has received this control signal outputs the demodulated voice information to the volume adjusting unit 24. The audio information is output from the speaker 26 after volume adjustment by the volume adjustment unit 24 and amplification by the amplifier 25.

  At this time, the control unit 30 determines whether the broadcast command indicates that the notification broadcast is an emergency notification broadcast (step SC-3), and if it is an emergency notification broadcast (step SC- 3, Yes), the emergency broadcast indicator lamp 28b is turned on or blinked, and the sound volume information is output at a predetermined high volume for emergency notification broadcasting by controlling the volume adjusting unit 24 (step SC-4). Since the date and time information is not inserted in the center device 10 at the time of the emergency broadcast, only the audio information is immediately output, and the contents of the emergency broadcast can be quickly transmitted to the user.

  On the other hand, when the broadcast command indicates that the notice broadcast is a general notice broadcast (step SC-3, No), the control unit 30 turns on or blinks the general broadcast indicator lamp 28c and sets the volume. By controlling the adjustment unit 24, the audio information is output at the volume set by the volume switch (step SC-5).

  Here, since the date / time information is inserted in step SB-8 in FIG. 4 before the audio information of the general announcement broadcast, the date / time information may be output as audio prior to the audio information. However, if the user listens to the announcement broadcast immediately after reception, the user can easily identify the date and time by looking at the calendar or clock without depending on the date and time information. On the contrary, it is troublesome. Therefore, in step SC-5, the date / time reproduction control unit 30a cuts the speaker output of date / time information and outputs only audio information. As a method for cutting the speaker output of the date / time information in this way, for example, the date / time reproduction control unit 30a outputs the date / time information based on the length or position of the date / time information registered in the receiver 20 in advance. The timing is predicted, and the volume adjusting unit 24 is controlled so that the output volume becomes zero while the output timing is matched. Alternatively, when the date and time information is inserted by the center apparatus 10, identification information for identifying the date and time information from the audio information is added before and after the date and time information, and the date and time reproduction control unit 30a adds the identification information. The date and time information is identified based on the voice information, and the volume adjusting unit 24 is controlled so that the output volume becomes zero while the date and time information is output.

  The date and time information and audio information for which output control has been performed in this way are recorded by the audio recording unit 23 (step SC-6), and when the user gives a reproduction instruction via the notification reproduction switch (step SC-7, Yes), the sound is output to the volume adjusting unit 24 via the voice switching unit 22 and output from the speaker 26 (step SC-8). At this time, since the user cannot know when the announcement broadcast was recorded, it is difficult to determine whether the content of the announcement broadcast is still valid at that time. Therefore, the date / time reproduction control unit 30a outputs the date / time information prior to the audio information without cutting the date / time information. For example, the date and time information is output as “June 1, 2008 3:30 pm”. This completes the receiving process of the receiver.

(Effect of Embodiment 1)
As described above, according to the present embodiment, the date and time information is automatically inserted into the audio information in the center apparatus 10, and the date and time information is automatically reproduced prior to the audio information in the receiver. Therefore, there is no user at the time of receiving and outputting the announcement broadcast, and even when the recorded announcement broadcast is played back and listened to, it is easy and accurate to know when the announcement broadcast was recorded. Therefore, it is possible to determine whether or not the content of the notification broadcast is still valid at that time, and the effectiveness of the notification broadcast can be enhanced. In addition, since it is not necessary for the receiver 20 to have a clock function, the configuration of the receiver 20 can be easily maintained, and an increase in cost can be prevented.

  Also, according to the present embodiment, the date / time information is output only during recording / playback without outputting the date / time information at the time of the announcement broadcast immediately after reception, so that the user can watch the calendar and the clock without visiting the date / time information. Thus, it is possible to prevent the user from being bothered by outputting the date / time information until the date / time can be easily specified by himself / herself, and the date / time information can be output in consideration of the convenience of the user.

  In addition, according to the present embodiment, the date / time information is not inserted at the time of emergency broadcasting, but is inserted at the time of general announcement broadcasting. It is possible to prevent a situation in which transmission is delayed, and it is possible to output date information in consideration of user convenience.

[Embodiment 2]
Next, a second embodiment will be described. In this form, a date / time generation command indicating the broadcast date / time is transmitted from the center device side to the receiver side, and date / time information is inserted on the receiver side based on the date / time generation command. However, unless otherwise specified, the configuration and processing are the same as those in the first embodiment, and components having the same functions as those in the first embodiment are denoted by the same reference numerals or names as those in the first embodiment, and the description thereof is made. (The same applies to the second and subsequent embodiments).

(Processing-Notification broadcast processing in the center device)
The notification broadcast process in the notification broadcast system 1 according to the present embodiment will be described. First, the notification broadcast process in the center apparatus 10 will be described. A flowchart of this notification broadcast processing is shown in FIG. However, since steps SD-1 to SD-5 in FIG. 6 are the same as steps SB-1 to SB-5 in FIG. 4, only the other steps will be described.

  When it is determined in step SD-2 that the broadcast is a general broadcast (step SD-2, No), the date / time transmission control unit 18a acquires the date / time information at that time from the date / time circuit 16, and the receiver 20 receives the date / time information. A date / time generation command for generation is generated by a predetermined method (step SD-6). This date / time generation command corresponds to the date / time related information in the scope of claims. For example, when the date / time information is “3:30 pm on June 1, 2008”, this is displayed as an 8-digit year. This is configured by combining continuous numerical data such as “20080601530” digitized by a system and a 24-hour display system, and a predetermined control command for instructing generation and recording / playback of date / time information based on the continuous numerical data. Then, the broadcast command and date / time generation command and the audio information input by the operator are recorded in the memory 15 (step SD-7). Thereafter, the control unit 18 monitors whether or not the scheduled broadcast date and time designated by the operator has arrived based on the date and time information from the date and time circuit 16 (step SD-8), and when the scheduled broadcast date and time has arrived. (Step SD-8, Yes), the broadcast command, date / time generation command, and audio information are acquired from the memory 15. Then, the control unit 18 generates a notification broadcast signal by modulating the broadcast command, the date / time generation command, and the audio information on a carrier having a predetermined frequency, and the notification broadcast signal is transmitted to the head via the transmission unit 17. It transmits to the end 41 (step SD-4). Thus, the notification broadcast process in the center device 10 is completed.

(Processing-Notification broadcast processing at the receiver)
Next, notification broadcast processing in the receiver 20 will be described. A flowchart of this notification broadcast processing is shown in FIG. However, since steps SE-1 to SE-4 in FIG. 7 are the same as steps SC-1 to SC-4 in FIG. 5, only the other steps will be described. When the broadcast command indicates that the notification broadcast is a general notification broadcast (No in step SE-3), the control unit 30 of the receiver 20 turns on or blinks the general broadcast indicator lamp 28c. By controlling the volume adjusting unit 24, the audio information is output at the volume set by the volume switch (step SE-5). Since the date / time information is not inserted at the time of broadcasting immediately after reception, only the audio information is output even if the date / time reproduction control unit 30a does not perform special processing for cutting the date / time information.

  The sound information subjected to the output control in this way is recorded by the sound recording unit 23 together with the date / time generation command (step SE-6). When the user gives a reproduction instruction via the notification reproduction switch (step SE-7, Yes), the audio information is output to the volume adjustment unit 24 via the audio switching unit 22 and output from the speaker 26. (Step SE-10). At this time, the date / time reproduction control unit 30a determines the presence / absence of the date / time generation command (step SE-8), and when the date / time generation command exists (step SE-8, Yes), based on the date / time generation command. Date / time information is generated (step SE-9), and in step SE-10, the date / time information is output prior to the audio information. That is, the broadcast date and time is specified based on continuous numerical data such as “200806011530”, and the audio data for each word recorded in advance in the memory is combined based on the broadcast date and time, thereby providing an analog audio corresponding to the broadcast date and time. Generate and output data. As a result, the date and time information is output as “3:30 pm on June 1, 2008”. This completes the notification broadcast process in the receiver 20.

(Effect of Embodiment 2)
As described above, according to the present embodiment, in addition to the same effects as those of the first embodiment, since the date / time generation command is transmitted from the center apparatus 10 to the receiver 20 instead of the voice information, the transmission data amount can be reduced. In addition, it is possible to prevent audio noise that may occur when analog audio information is transmitted.

[Embodiment 3]
Next, Embodiment 3 will be described. In this form, the clock function on the receiver side is corrected based on the time correction command transmitted from the center apparatus side, and date / time information is inserted on the receiver side.

(Constitution)
First, the configuration of the notification broadcast system 1 according to this embodiment will be described. FIG. 8 is a block diagram showing a configuration of the notification broadcasting system 1 according to the present embodiment. As shown in FIG. 8, the receiver 20 includes a date / time circuit 32. The date / time circuit 32 corresponds to the date / time means in the claims.

(Date correction processing in the center device)
Next, processing in the notification broadcasting system 1 configured as described above will be described. First, date correction processing in the center apparatus 10 will be described. A flowchart of this date and time correction processing is shown in FIG. The date / time transmission control unit 18a of the center apparatus 10 determines whether or not the correction timing at a predetermined interval has arrived (step SF-1), and when the correction timing has arrived (step SF-1, Yes), the date / time is determined. Date / time information at that time is acquired from the circuit 16 (step SF-2), and a date / time correction command for correcting the date / time circuit 32 of the receiver 20 is generated by a predetermined method based on the date / time information (step SF-3). ). This date and time correction command corresponds to the date and time related information in the scope of claims. For example, when the date and time information is “June 1, 2008 3:30 pm”, this is displayed as an 8-digit year. It is configured by combining continuous numerical data such as “20080601530” quantified by the method and the 24-hour display method, and a predetermined control command for instructing correction of the date / time circuit 32 based on the continuous numerical data. Then, the control unit 18 generates a date / time correction signal by modulating the date / time correction command on a carrier having a predetermined frequency, and transmits the date / time correction signal to the head end 41 via the transmission unit 17 (step SF). -4). This completes the date correction process in the center apparatus 10.

(Date correction processing at the receiver)
Next, date correction processing in the receiver 20 will be described. A flowchart of this reception process is shown in FIG. In the receiver 20, the input date / time correction signal is demodulated by the demodulator 21 (step SG- 1), and the date / time correction command and continuous numerical data are input to the controller 30. The date / time reproduction control unit 30a of the control unit 30 corrects the date / time circuit 32 based on the control command included in the date / time correction command (step SG-2). That is, the date / time information is acquired based on the continuous numerical data, and the date / time circuit 32 is corrected to the date / time indicated by the date / time information. This completes the date / time correction process in the receiver 20.

  Thereafter, the date / time reproduction control unit 30a of the receiver 20 acquires date / time information from the date / time circuit 32 each time the general notification broadcast transmitted from the center device 10 is recorded in the audio storage unit 23, and the date / time information is notified to the general notification. Insert before the broadcast. Therefore, when the general announcement broadcast is reproduced, the date and time information is output as “3:30 pm on June 1, 2008” prior to the general announcement broadcast.

(Effect of Embodiment 3)
Thus, according to the present embodiment, in addition to the same effects as those of the first embodiment, even when the receiver 20 has a date / time circuit, the correction is applied to the signal from the center device 10 side. Therefore, it is not necessary to provide each receiver 20 with a special function for acquiring the correction reference date and time information, and the configuration of the receiver 20 can be simplified.

[Embodiment 4]
Next, a fourth embodiment will be described. In this form, the date and time information is constantly transmitted from the center device side to the receiver side, and the date and time information is inserted on the receiver side.

(Processing-Date / time transmission processing in the center device)
Processing in the notification broadcasting system 1 according to the present embodiment will be described. First, the date and time transmission process of the center apparatus 10 will be described. A flowchart of this date and time transmission processing is shown in FIG. The date / time transmission control unit 18a of the center apparatus 10 always acquires date / time information from the date / time circuit 16 (step SH-1). This date / time information corresponds to the date / time related information in the claims, and the date / time transmission control unit 18a modulates the date / time information on a carrier of a predetermined frequency by modulating continuous numeric data obtained by digitizing the date / time information. Is generated (step SH-2), and this date / time signal is transmitted to the head end 41 via the transmitter 17 (step SH-3). As a carrier at the time of transmission, it is preferable to use a carrier that is not used in the announcement broadcast. For example, among the plurality of broadcast RF carriers, an RF carrier that is not used for announcement broadcast is used, or a date / time signal is used. A dedicated carrier for transmission may be set. This completes the date / time transmission process in the center apparatus 10.

(Processing-Notification broadcast processing at the receiver)
Next, the notification broadcast process of the receiver 20 will be described. In the receiver 20, the input date / time signal is constantly demodulated by the demodulator 21, and continuous numerical data is constantly input to the controller 30. The date and time reproduction control unit 30a of the receiver 20 records the general announcement broadcast transmitted from the center device 10 in the audio storage unit 23, based on the continuous numerical data input from the center device 10 at that time. Date and time information is acquired, and this date and time information is inserted before general announcement broadcasting. Therefore, when the general announcement broadcast is reproduced, the date and time information is output as “3:30 pm on June 1, 2008” prior to the general announcement broadcast.

(Effect of Embodiment 4)
As described above, according to the present embodiment, in addition to the same effects as those of the first embodiment, the date / time information is constantly transmitted from the center apparatus 10 to the receiver 20. By using this, various processes other than the processes described above can be performed. For example, when the user performs a predetermined operation using the operation unit, the date / time reproduction control unit 30a acquires date / time information based on continuous numerical data input from the center device 10 at that time, and from the speaker. By outputting, date and time information can be provided.

[Modifications to Embodiment]
Although the embodiments of the present invention have been described above, the specific configuration and means of the present invention can be arbitrarily modified and improved within the scope of the technical idea of each invention described in the claims. it can. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved.

(About the output format of date and time information)
The output form of the date / time information can be arbitrarily modified. For example, in each of the above embodiments, the date / time information is output before the general announcement broadcast, but may be output after the general announcement broadcast, or the date / time information is output before or after the emergency broadcast. May be.

It is a block diagram which shows the structure of the notification broadcasting system which concerns on Embodiment 1 of this invention. It is a front view of a receiver. It is a flowchart of a date correction process. It is a flowchart of the notification broadcast process in a center apparatus. It is a flowchart of the notification broadcast process in a receiver. 10 is a flowchart of notification broadcast processing in the center device according to the second embodiment. It is a flowchart of the notification broadcast process in a receiver. It is a block diagram which shows the structure of the notification broadcasting system which concerns on Embodiment 3. FIG. It is a flowchart of the date correction process in a center apparatus. It is a flowchart of a reception process. 10 is a flowchart of date and time transmission processing according to the fourth embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Notification broadcasting system 10 Center apparatus 11, 27 Operation part 12, 28 Display part 13 Microphone 14 BGM source 15, 29 Memory 16, 32 Date and time circuit 17 Transmission part 18, 30 Control part 18a Date and time transmission control part 20 Receiver 21 Demodulation part 22 Audio switching unit 23 Audio recording unit 24 Volume adjustment unit 25, 43 Amplifier 26 Speaker 27a FM broadcast selection switch 27b Notification playback switch 27c Volume switch 28a Power indicator 28b Emergency broadcast indicator 28c General broadcast indicator 30a Date and time reproduction control unit 31 Antenna 40 transmission system 41 head end 42 transmission line 44 distribution amplifier 46 distributor 48 protector

Claims (2)

In a notification broadcasting system configured by connecting a transmission means for transmitting a notification broadcast signal and a reception means for receiving the notification broadcast signal via a transmission line,
As the date and time related information for broadcasting information related to the reception timing of the announcement broadcast in the receiving means, the transmission means includes date and time information configured by voiceizing the date and time corresponding to the reception timing via the transmission line. Providing date and time transmission means for transmitting to the reception means,
The receiving means includes date and time broadcasting means for broadcasting information related to the reception timing based on the date and time related information transmitted from the date and time transmitting means,
The date and time transmission means acquires the date and time information corresponding to the broadcast date and time of the announcement broadcast signal by a predetermined method, adds the obtained date and time information before or after the announcement broadcast signal, and the date and time information is added. Sending an announcement broadcast signal to the receiving means;
The date and time broadcast means
Before or after the announcement broadcast signal based on the announcement broadcast signal, broadcast the broadcast date and time based on the date and time information added to the announcement broadcast signal,
In the case where a general announcement broadcast and an emergency announcement broadcast are set as the announcement broadcast, the date and time transmission means is the date and time transmission means only when the target of the announcement broadcast is specified by the predetermined method. Adding related information to the announcement broadcast signal corresponding to the general announcement broadcast;
Announcement broadcasting system characterized by In a notification broadcasting system configured by connecting a transmission means for transmitting a notification broadcast signal and a reception means for receiving the notification broadcast signal via a transmission line,
As the date and time related information for broadcasting information related to the reception timing of the announcement broadcast in the receiving means, the transmission means includes date and time information configured by voiceizing the date and time corresponding to the reception timing via the transmission line. Providing date and time transmission means for transmitting to the reception means,
Based on the date / time related information transmitted from the date / time transmission unit, the reception unit broadcasts information related to the reception timing, and records and reproduces the notification broadcast signal transmitted from the transmission unit. Recording and playback means to perform,
The date and time transmission means acquires the date and time information corresponding to the broadcast date and time of the announcement broadcast signal by a predetermined method, adds the obtained date and time information before or after the announcement broadcast signal, and the date and time information is added. Sending an announcement broadcast signal to the receiving means;
The date and time broadcasting means, before or after the announcement broadcast based on the announcement broadcast signal, broadcast the broadcast date and time based on the date and time information added to the announcement broadcast signal ,
The recording / reproducing means, when receiving the announcement broadcast signal from the transmission means, records the received announcement broadcast signal and date / time information based on the date / time related information received from the transmission means,
When reproduction of the recording / reproducing means is instructed by a predetermined method, the recording / reproducing means performs the announcement broadcasting based on the notification broadcast signal recorded by the recording / reproducing means, and before or after the announcement broadcasting. Broadcast the broadcast date and time based on the date and time information recorded at
In the case where a general announcement broadcast and an emergency announcement broadcast are set as the announcement broadcast, the date and time transmission means is the date and time transmission means only when the target of the announcement broadcast is specified by the predetermined method. Adding related information to the announcement broadcast signal corresponding to the general announcement broadcast;
Tell intellectual broadcasting system that characterized the.

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