JP3155800B2 - Automatic broadcasting system and automatic broadcasting system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic broadcasting system and an automatic broadcasting system for broadcasting a message sent from a remote place to a plurality of receiving stations.

[0002]

2. Description of the Related Art Conventionally, as an automatic broadcasting system of this type, for example, a municipal disaster prevention radio system is known.
This system consists of a main station in the central government office that broadcasts disaster prevention information wirelessly, a plurality of remote stations connected to this main station via a dedicated line, and a plurality of receiving stations that receive radio waves from the main station. Have been. The master station includes a wireless device for transmitting an audio signal, receives a message transmitted from a plurality of remote stations via a dedicated line, and includes a communication control device for transferring and transmitting the message to the wireless device. ,Also,
An operation console is provided for controlling the communication control device and broadcasting the master station itself. The remote station is composed of a remote controller that sends a message to a communication controller of the main station via a dedicated line.

[0003] The master station transfers a message received from a remote station to a wireless device by a communication control device, and the wireless device automatically broadcasts the message to a receiving station in the area. In this case, if the radio device is broadcasting a message from the operation console of the main station or a message from any remote station and a broadcast request is issued from another remote station, the communication control device is busy. The signal is sent back to the remote station and the remote control of the remote station is locked. At this remote station, a busy lamp is turned on to indicate that broadcasting is in progress.

When the broadcast is finished, the master station presses the broadcast end switch on the console to send a busy release signal to the remote station, turns off the busy lamp of the remote station, releases the lock, and then releases the remote station. Sent a new message.

[0005]

However, in the above-mentioned conventional system, since the radio line used for broadcasting is one line, when a remote station tries to transmit a message to the main station, the central office or other offices may use the radio line. If a remote station encounters a broadcast while it is broadcasting, the remote station will wait until the radio line is free, and if multiple remote stations request transmission at the same time, the standby time will be longer and then again. Since the transmitting operation is performed, there is a disadvantage that the remote station must repeat the transmitting operation until the wireless line becomes free when the remote station is busy during broadcasting.

The present invention solves the above-mentioned drawbacks of the prior art, and provides an automatic broadcasting system and an automatic broadcasting system in which a remote station can efficiently transmit a message even when the main station is broadcasting. The purpose is to:

[0007]

According to the present invention, in order to solve the above-mentioned problems, a plurality of remote stations are connected to a master station having a transmitting means for broadcasting to a plurality of receiving stations via respective transmission paths. In an automatic broadcasting system in which a message transmitted from these remote stations is automatically transmitted to a receiving station via a master station, when a request for transmitting a message is issued at any one of the remote stations, Connects to the main station via the transmission path and sends a transmission request signal to the main station. When the transmission request signal is received from a remote station via the transmission path, the main station transmits the transmission request signal to the main station. If the main station receives a transmission request signal from the remote station during broadcasting, it sends a busy signal to the remote station when it is not broadcasting. When the remote station receives a response signal from the master station, the remote station sends a message. Transmits to a master station via a transmission line, and upon receipt of a message transmitted from the remote station, the master station transfers the message received from the remote station to transmission means and transmits an automatic broadcast of the message. If the remote station receives a busy signal from the main station,
The message is stored in the recording means, and when the broadcast ends, the master station sends a busy release signal to the remote station, and the remote station receives the busy release signal from the main station, The message is read from the recording means, transmitted to the master station, and broadcast from the transmission means of the master station.

In this case, the master station has an operation console for transmitting a message from the own station. Even when the operation is performed on this operation console, the transmission request signal and the response signal or the busy signal are transmitted. A transmission request process is performed by sending and receiving the message, and when the message is busy, the message is stored in the recording means of the own station, and the stored message is read and transmitted by sending and receiving the busy release signal.

On the other hand, in the automatic broadcasting system according to the present invention, a plurality of remote stations are connected via respective transmission paths to a master station provided with a transmitting means for broadcasting to a plurality of receiving stations, and are transmitted from these remote stations. In the automatic broadcasting system for automatically transmitting a message to a receiving station via a main station, the main station includes a communication connecting means connected to a plurality of remote stations via a transmission path, and a communication connecting means connected via the communication connecting means. A responding means for outputting a response signal for receiving a message from the remote station when a transmission request signal is received from the remote station; and a message transmitted from the remote station to which the response signal was transmitted by the response means. A transmitting unit for transmitting the message transmitted through the transmitting unit to a receiving station, wherein the responding unit transmits a transmission request signal when the transmitting unit is broadcasting. A busy signal is sent to the remote station from which the signal was issued, and if a transmission request signal is received simultaneously from a plurality of remote stations, one of them is selected and a response signal is sent, and a busy signal is sent to another remote station. And outputting a busy signal to a remote station to which the busy signal has been transmitted when the broadcasting in the transmitting means is completed.

In this case, the remote station stores transmission control means for transmitting a message to a transmission path, message input means for converting a voice message into an input signal of the transmission control means, and stores a message from the message input means. Storage means for reproducing the stored message and outputting the message to the transmission control means. When the transmission control means detects a message transmission request, the transmission control means sends a transmission request signal to a transmission path, and receives a response signal from the transmission path. In this case, a message from the message input means is transmitted, and when a busy signal is received from the transmission path, the message from the message input means is stored in the storage means, and then, a busy release signal is received from the transmission path. Then, the transmission request signal is transmitted to the transmission path, and when the response signal is received, the message recorded by the recording means is read out and transmitted to the transmission path. Comprising a control means for force.

The response means of the master station outputs a response signal to any one of the lines when receiving a transmission request signal from a plurality of transmission lines when the local station is not broadcasting, and outputs the response signal to another transmission line. It is preferable to include a selection unit that outputs a busy signal to a channel, and outputs a busy cancel signal to a transmission path to which the busy signal has been transmitted when the broadcast ends.

[0012]

According to the automatic broadcasting system and the automatic broadcasting system of the present invention, since the recording means is provided in the remote station, the message is stored in the recording means when the main station is busy, and the busy state is released. By automatically calling and transmitting the message, the operator at the remote station can immediately input the broadcast message when a broadcast request is issued, regardless of whether the main station is idle or broadcasting. The broadcast operation may end.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an automatic broadcasting system and an automatic broadcasting system according to the present invention. FIG. 2 shows an embodiment in which the automatic broadcasting system and the automatic broadcasting system according to the present invention are applied to a disaster prevention administrative wireless system. This system consists of a main station 11 installed in the main office, etc., a plurality of remote stations 16, 16 ... connected to the main station 11 via dedicated lines 13 to 15, respectively, and a radio broadcast from the main station 11. . Receiving stations 24, 24,...

The main station 11 communicates with a plurality of remote stations 16, 16... Via dedicated lines 13 to 15, and transmits a voice message transferred through the communication control apparatus 12. A radio 21 for broadcasting to each of the receiving stations 24, 24... And an operation console 22 for supplying a voice message from the station 11 itself to the radio 21 are provided.

The communication control device 12 is a transfer control device for transferring a transmission message from a plurality of remote stations 16 and a voice message from an operation console 22 to a radio device 21 and includes, for example, an exchange switch of a telephone exchange or the like. This communication control device
Numeral 12 includes a response trunk circuit that returns a response signal when a transmission request signal is received from the operation console 22 and the remote station 16 and the radio device 21 is not broadcasting. When a response signal is transmitted from this trunk circuit, the communication control device 12
A process of receiving a message from the operation console 22 of 11 or the remote station 16 and transferring the message to the wireless device 11 is performed. When the communication control device 12 receives a transmission request signal from a plurality of remote stations 16 or the console 22 at the same time, the communication controller 12 selects one of the remote stations 16 or the console 22 and sends a response signal. Remote station
The console 16 or the control console 22 includes a busy signal generating trunk circuit for transmitting a busy signal, thereby performing processing for eliminating collision of messages and loss of messages due to the collision.

The wireless device 11 modulates a signal wave with a voice message signal input via the communication control device 12 and broadcasts the broadcast. The broadcast is received by receivers 24 in various places to transmit disaster prevention information. Will be This radio 11 and receiver 24 are
Depending on the communication range, for example, a wireless telephone device in the tens of MHz band is used.

The operation console 22 is an operation control device for transmitting a voice message from the own station 11 via the communication control device 12, and includes a broadcast start switch, a voice input device such as a microphone, and a voice input device such as a microphone. It includes an amplifier for amplifying the audio signal, a busy lamp that is turned on by a busy signal from the communication control device 12, and the like.

FIG. 1 is a block diagram showing a schematic configuration of the remote control device 19 of the remote station 16 in FIG. The remote control device 19 includes a microphone 34 for inputting a voice message, an amplifier 33 for amplifying a voice signal from the microphone 34, and a voice signal from the amplifier 33, like the console 22 of the main station 11. Communication control circuit that transmits data to the main station 11 via the dedicated line 13.
It is an operation control device equipped with 38.

In this embodiment, the amplifier 33 has an output line 40 for directly outputting a signal to the communication control circuit 38, and an output line 42 for supplying a signal to the recording unit 50. This amp 33
Is switched by control signals S1 and S2 from the recording switch 39 or the communication control circuit 38. The recording unit 50 is an AD converter for converting the output signal of the amplifier 33 into an analog signal.
32 and an IC RAM (Random Access M
The recording apparatus 31 includes an emory, a hard disk, and the like, and a DA converter 35 that converts a reproduction signal from the recording apparatus 31 into an analog signal.

The recording switch 39 is a switch for switching the output of the amplifier 33 and activating the recording device 31. Also,
The communication control circuit 38 is connected to a broadcast start switch 36 and a busy lamp 37. More specifically, the recording device 31 enters a recording mode when the recording switch 39 is pressed or a control signal is received from the communication control circuit 38, and the digital signal obtained by quantizing the audio signal by the AD converter 32 is stored on a hard disk or the like. Record. The recording device 31 enters a reproduction mode in response to a control signal from the communication control unit 38, and outputs a digital signal recorded on a hard disk or the like to the DA converter 35. The DA converter 35 converts the digital signal into an audio signal and outputs the audio signal to the communication control circuit 38.

When the broadcast start switch 36 is turned on, the communication control circuit 38 sends out a transmission request signal, and upon receiving a response signal from the main station 11 for the first time, outputs the output line 40 of the amplifier 33.
Is connected to the dedicated line 13. This communication control circuit
38 receives the busy signal via the dedicated line 13, turns on the busy lamp 37, stops the output of the amplifier 33 to the output line 40, and enables the output to the output line 42 at the same time. The recording device 31 is activated to set the recording mode. When receiving the busy release signal, the recording device 31 is set to the reproduction mode, and the audio signal recorded in the recording device 31 is read out and transmitted via the line 13. Further, the communication control circuit 38 has a function such as automatic recall for transmitting a transmission request signal until a response signal is received from the main station 11.

Next, the operation of the automatic broadcasting system in this embodiment will be described, and the automatic broadcasting system in this embodiment will be described. To start broadcasting at the remote station 16, first, when the broadcast start switch 36 is pressed, the communication control circuit 38
Detects that the broadcast start switch 36 is pressed, and outputs a transmission request signal to the dedicated line 13.

On the other hand, the master station 11 receives a transmission request signal from the remote station 16 at the communication controller 12 and, if the receiver 21 is not in use, sends a response signal from the trunk circuit of the communication controller 12. I will send it back. Upon receiving the response signal from the communication control circuit 38, the remote station 16 connects the output line 40 of the amplifier 32 to the dedicated line 13 and sends a message input from the microphone 34 via the amplifier 32 to the dedicated line 13. Send to

On the other hand, when the main station 11 is broadcasting, a busy signal is transmitted from the communication control device 12 which has received the transmission request signal from the remote station 16. As a result, when the communication control circuit 38 of the remote station 16 receives the busy signal from the
By turning on 37, the connection between the output line 40 of the amplifier 32 and the dedicated line 13 is turned off, and the output from the output line 42 is permitted to start the recording device 31. As a result, a message can be immediately input from the microphone 34. The message output from the amplifier 32 is converted into a digital signal by the AD converter 32 via the output line 42 and input to the recording device 31. As a result, the voice message is recorded on the recording medium such as the hard disk of the recording device 31, and the message input of the remote station 16 is continued regardless of whether the main station 11 is busy.

When the main station 11 in FIG. 2 finishes broadcasting, a communication release signal is transmitted from the communication control device 12 to the line 13. Upon receiving this signal, the communication control circuit 38 of the remote station 16 sends out a transmission request signal again. When a busy signal is received from the main station 11, the transmission request signal is repeated at predetermined intervals until a response signal is received from the main station 11. Thereafter, when receiving the response signal from the main station 11, the communication control circuit 38 sets the recording device 31 to the reproduction mode. The recording device 31 reproduces the message and outputs it to the DA converter 35. This message is converted into an audio signal, sent to the master station 11 via the dedicated line 13, and the broadcast of the remote station 11 ends.

As described above, in this embodiment, the remote station 16
, The remote station 11 can immediately input a broadcast message and end the broadcast operation even if the central main station 11 is busy. Therefore, according to this embodiment, even when the main station 11 is broadcasting, the operator of the remote station 16 can immediately input a voice message from the microphone 34 after pressing the broadcast start switch 36, This message is automatically transmitted as soon as the broadcast of the main station 11 ends.

Although the recording device 31 is a digital recorder in the above embodiment, it may be an analog recorder.
Similarly, in the above embodiment, the transmitted signal is an analog signal. However, the transmitted signal may be a digital signal. In this case, the master station 11 and the remote station 16 may be constituted by circuits for handling digital signals. In the above embodiment, the main station 11 is a wireless station. However, if the wireless device 11 is changed to a wired transmitter, it is obvious that the present invention can be applied to wired automatic broadcasting. Further, in the above embodiment, the description of the transmission method from the operation console 22 of the main station 11 is omitted, but by configuring the operation console 22 in the same manner as the remote station 19, the same immediate operation as the remote station 19 is performed. Obviously, message input can be performed.

[0028]

As described above, according to the automatic broadcasting system and the automatic broadcasting system of the present invention, the recording function is provided in the remote station, so that even if the central main station is busy, the remote station is not busy. The operator can immediately input the broadcast message and end the broadcast operation of the own station. Therefore, the operator does not need to wait and input a message until the broadcast of the main station is completed as in the conventional example, and the operation of the remote station is efficiently performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a remote control device applied to an embodiment of an automatic broadcasting system according to the present invention.

FIG. 2 is a system configuration diagram showing one embodiment of an automatic wireless broadcasting system in the present embodiment.

[Explanation of symbols]

 11 Main station 12 Communication controller 13 to 15 Dedicated line 16 Remote station 19 Remote controller 21 Radio 31 Recording device 32 AD converter 33 Amplifier 34 Microphone 35 DA converter 38 Communication control circuit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-187058 (JP, A) JP-A-2-34045 (JP, A) JP-A-2-153642 (JP, A) JP-A-53-178 93717 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) H04B 7/26 101 H04H 1/00

Claims (3)

(57) [Claims] 1. A plurality of remote stations are connected via respective transmission paths to a master station having a transmitting means for broadcasting to a plurality of receiving stations, and messages transmitted from the remote stations are transmitted via the master station. automatic broadcasting of the broadcast system to be transmitted to the receiving station Te
In the method , when a request to transmit a message occurs at any of the remote stations, the remote station connects to the master station via the transmission line and sends a transmission request signal to the master station, The station, when receiving a transmission signal request from the remote station via the transmission path, sends a response signal to the remote station if the master station is not broadcasting, and broadcasts the response signal to the remote station. wherein when receiving the transmission request signal from the remote station during said sending a busy signal to a remote station, the remote station receives the response signal from the main station, the message the transmission path The master station receives a message transmitted from the remote station, transfers the message received from the remote station to the transmission means, and transmits the automatic broadcast of the message to the master station. The remote station is busy from the master station When the broadcast is finished, the master station sends a busy release signal to the remote station when the broadcast is ended, and the remote station transmits the message from the master station. When receiving the busy release signal,
Automatic broadcasting method characterized in that said from the recording unit reads the message and send it to the main station, to release <br/> send the message from the transmitting means of the main station. 2. A method according to claim 1, wherein the master station includes a control console for sending messages from the own station, even if transmission is performed at the operation table, the transmission performs transmission request process in exchange request signal and the response signal or the busy signal, when the busy, the message is stored in the recording means of its own station, stored by exchange of the busy release signal An automatic broadcasting method, comprising reading and transmitting a message that has been sent. 3. A transmitting means for broadcasting to a plurality of receiving stations.
Multiple remote stations connect to the main station via their respective transmission paths.
Message transmitted from the remote station to the master station.
ThroughTransmit to the receiving stationAutomatic broadcast system
A communication connection connected to a plurality of remote stations via the transmission path.
Means for transmitting a transmission request signal from the remote station via the communication connection means.
When receiving, the remote stationInform the master station of the communication status
Together with which controls for each of the
To indicateResponse means for outputting a response signal
And the response meansSaidFrom the remote station that sent the response signal
Forwarding means for forwarding a message to be transmitted to said transmitting means
And a receiving station for transmitting the message transferred via the transfer means.
Transmission means for broadcasting toThe response unit is using the master station as the response signal.
Busy signal indicating the release of the master station
A busy signal transmitting means for generating an intermediate release signal; One of the remote stations transmitting the transmission request signal
Select the station and send a response signal indicating that the station has been selected.
Selecting means for generating a signal,  The response unit is the transmission unitButNeed to send when broadcasting
To the remote station that sent the request signalSaidSends a busy signal,
When receiving a transmission request signal from multiple remote stations at the same timePrevious
Of the remote stationeitherOneSelectThe transmissionResponse signal
SendingAnd to other remote stationsSaidOutput a busy signal,
When the broadcast in the transmission means ends,SaidBusy signal
To the remote station that sentSaidOutput busy release signalI,If the local station is not broadcasting,
When a transmission request signal is received, transmission
Answer signal, and output a busy signal to another transmission path.
When the broadcast ends, the busy release signal is sent to the busy signal.
Output to the transmission line of the sending destination And the remote stationSupplied from the remote station to the transmission path messageSupply of
Selective controlTransmission control means for converting a voice message into an input signal of the transmission control means.
Message input means, and a message from the message input means.
Playing the stored message and outputting it to the transmission control means
ToRecording meansWherein the transmission control means detects a message transmission request
And sends a transmission request signal to the transmission path,Previous
Transmission response signalWhen receiving the message, enter the message
Sending a message from the means to the transmission path,Saidtransmission
From the roadSaidIf a busy signal is received,Saidmessage
The message from the input meansRecording meansTo memorize,
afterwards,SaidFrom the transmission lineSaidReceive a busy release signal
When,SaidSending a transmission request signal through the transmission path,Said sending
FaithWhen the response signal is received, the message recorded by the recording means is received.
Control means for reading a message and outputting the message to the transmission line
An automatic broadcasting system comprising: