JPH01173960A - Voice multiple address device - Google Patents

Abstract

PURPOSE:To suppress the toll of a line at minimum in the case of using an ordinary telephone line network and to heighten the activity efficiency of the line in case of using a dedicated telephone line network by installing a line control part near a terminal and performing signal transmission for a long distance between a center and the line control part with a few number of lines. CONSTITUTION:The center 10 is constituted of a console 11 and a multiple address control part 12, and the multiple address control part 12 is connected by plural relay centers (20a-20m) constituted of the line control parts (2a-2m), respectively, and telephone lines (10a-10m). Also, the line control parts (2a-2m) are connected by plural terminals 30 and the telephone lines (20a1-20an) and (20m1-20mt), respectively. Therefore, when the relay centers (20a-20m) are installed near the terminal 30, it follows that the center 10 installed separately far away is connected to the relay centers (20a-20m) with a few number of lines. In such a way, it is possible to suppress the toll of the line at minimum and to improve the activity efficiency of the line.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is an audio broadcasting device that sends an audio signal from a center to a plurality of terminals through a telephone line network, and simultaneously outputs audio from the speakers of each terminal using the audio signal. It is related to.

[Conventional technology]

Conventionally, in this type of voice broadcasting device, a center is comprised of an operation console, a broadcast control section, and a line control section, and the line control section is connected to a plurality of terminals via a telephone line network. Then, the center calls each terminal through the telephone line network, and after the center and each terminal are connected, when audio is input from the center's microphone, that signal is sent to each terminal, and the audio is output from the speaker of each terminal. be done.

[Problem that the invention seeks to solve]

In this way, in conventional voice broadcasting devices, all terminals are
Since the system is directly connected to one center through a telephone line, there is a problem in that line usage charges become high when a large number of terminals are connected or when the distance between the center and the terminals is long.

Furthermore, when a dedicated line is used as a telephone line network, there is a problem that the line usage efficiency is low.

The purpose of the present invention is to solve such problems, to reduce line usage charges when using a normal telephone line network, and to improve line usage efficiency when using a dedicated telephone line network. The purpose of the present invention is to provide a voice broadcasting device that can perform the following functions.

[Means for solving problems]

The present invention provides an audio broadcasting device that includes a center that transmits audio signals, and a plurality of terminals that simultaneously receive the audio signals from the center through a telephone line network, input the audio signals to speakers, and convert them into sound. , comprising a line control unit that receives the audio signal from the center through the telephone line network and outputs it to the plurality of terminals, and the center includes a broadcast control unit that calls the line control unit through the telephone line network. It is characterized by

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a voice broadcasting device according to the present invention. The center 10 is composed of an operation console 11 and a coaxial control section 12, and the broadcast control section 12 includes a line control section 2. ~2. A plurality of relay centers 20. ~20. and telephone line 10°~10. connected by. In addition, each of the line control units 2, ~21 connects a plurality of terminals 30 and telephone lines 20□~20□, 201~
20. They are connected by L.

The terminals 30 each include a terminal 31 and a speaker 32, and the terminal 31 includes a line control unit 2. ~2. receives the audio signal from the speaker 32 and inputs it to the speaker 32.
2 outputs audio by this.

As shown in FIG. 2, the console 11 includes a display section 101, an audio input section 102, and a relay center 20. ~20° and the same number of block selection units 103. ~1031. The display unit 101 receives a response signal C sent from the broadcast control unit 12 when the terminals are simultaneously called from the operation console, and displays the response of the terminals 30 to the simultaneous call using, for example, an LED. Audio input section 102
is equipped with a microphone and converts the audio input into the microphone into an electrical signal and outputs it.

The block selection units 1031 to 103II are for selecting a group of terminals 30 to be called simultaneously, that is, a block of terminals, by turning on/off switches, and when the switches are turned on, broadcast request signals d, - d
7 respectively. Each of these block selection units 103
1 to 1031 are each line control unit 2. ~2. There is a one-to-one correspondence.

As shown in FIG. 3, the broadcast control unit 12 includes a monitoring unit 121
and relay center 20. ~20. The same number of block selection control units 122. ~122. It is composed of. The monitoring unit 121 includes block selection control units 122° to 122
, terminal status signals 01 to e from the console 11 are identified.
It is sent as a response signal C. Block selection control section 12
2. ~1221 are block selection units 1031~103. Broadcast request signals d, ~d sent from (.

and the line side j11 section 2° to 2. corresponding to the detected signal. Telephone line 10. ~10. Call through.

The response to the call is then sent to the line control unit 2. 21, it outputs terminal status signals e and ~e1 to notify the monitoring unit 121 of the fact, and transmits the audio signal from the console 11 to the line control unit 2. ~2. Create a communication path to send to.

Line control section 2. As shown in FIG. 4, a call detection section 21 and the same number of network control sections 22.
~22. The network control units 221-22 are connected to each terminal 30 via telephone lines 20□-20□, respectively. The call detection section 21 includes a block selection control section 1 122. Telephone line 10. When called through the network controller 22. - 227, the activation signal f is sent. Network control unit 22. When ~22R receives the activation signal f, it automatically dials the pre-stored telephone number of each terminal 30 and calls the terminal. When a response to the call is received, the block selection control unit 1
221-122. to notify. Line control section 2. ~2. Also, their configuration is the line control unit 2. It is similar to

Next, the operation will be explained using the case where the relay center 201 is called as an example. - When the operator turns on the switch of the block selection section 103m on the console 11 for simultaneous calling, the block selection section 1031 sends a broadcast request signal d.
1 is output to the block selection control section 1221 of the coaxial control section 12. The block selection control section 122 is the block selection section 103. Detects a broadcast request signal d sent from
Line control unit corresponding to the detected signal 2. telephone line 10
．． Call through.

The call detection section 21 of the line control section 21 is connected to the block selection control section 122. When it detects the call from, it outputs the activation signal f to the network control units 221-221.

As a result, the network control units 221 to 221 automatically dial the terminals 30 connected to them.

In response to this, the terminal 31 automatically receives the call, and after receiving the call, sends a response signal to the network control units 221-22. Network control unit 22
．． ~22. ．． When receiving the response signal, it notifies the block selection control section 122m of this fact, and furthermore, the block selection control section 1221 outputs a terminal status signal e to notify the monitoring section 121 of this fact. Block selection control section 122
．． At the same time, a communication path is formed for sending audio signals from the console 11 to the line control section 21.

The monitoring unit 121 controls the block selection control unit 122. When the terminal status signal e is identified, it is sent to the console 11 as a response signal C. The display unit 101 of the console 11 receives the response signal C and displays the response to the general call.

After confirming the responses from all the terminals 30 to which the simultaneous call is to be made based on this display, the operator inputs voice through the voice input section 102. This voice is converted into an audio signal by a microphone, and block selection control section 122. ,
Telephone port vA10. , the fi control units 22° to 221, the telephone lines 20□ to 20□, and the terminal device 31 connected to the line charge i1[1 part 2m], and are input to the speaker 32 to drive the speaker. That is, the audio input to the microphone of the center 10 is transmitted to the relay center 20. is broadcast through the speaker 32 of the terminal 30 connected to.

Since this voice broadcasting device has the above configuration, relay centers 20□ to 20. is installed near the terminal 30, the center 10 and the relay centers 201 to 20 . which are installed far away are connected to each other. This means that connections can be made with fewer lines, reducing line usage charges and improving line usage efficiency.

〔Effect of the invention〕

As explained above, the present invention provides an audio system that is equipped with a center that transmits audio signals, and a plurality of terminals that simultaneously receive audio signals from this center via a telephone line network, input the audio signals to speakers, and convert them into sound. In the broadcast device,
The center includes a line control unit that receives sound signals from the center through a telephone line network and outputs them to a plurality of terminals, and the center includes a broadcast control unit that calls the line control unit through the telephone line network.

Therefore, according to the voice broadcasting device of the present invention, the line control unit is installed at a location close to the terminal, and by transmitting signals over a long distance between the center and the line control unit using a small number of lines, it is possible to When a line network is used, line usage fees can be reduced, and when a dedicated telephone line network is used, line usage efficiency can be increased.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the audio broadcasting device according to the present invention, FIG. 2 is a block diagram showing an operation console constituting the center of the embodiment of FIG. 1, and FIG. FIG. 4 is a block diagram showing a broadcast control section forming the center of the embodiment. FIG. 4 is a block diagram showing a line control section forming the relay center of the embodiment of FIG. 2, ~2. ... Line control unit 10 ... Center 101 to 101I, 20□ to 20°, 20M, to 20M
. ...Telephone line 11...Operation console 12...Broadcast control section 201-20. . . . Relay center 21 . . . Call detection section 22, ~ 221 . . . Network control section 30 . Sections 103, to 1031...Block selection section 121...
Monitoring units 122a to 122i...Block selection control unit Yoshiyuki Iwasa, agent Patent attorney Figure 1 11 Operation console Figure 2 12 Daily report control unit Figure 3

Claims (1)

[Claims] (1) A voice broadcasting device comprising a center that transmits voice signals, and a plurality of terminals that simultaneously receive the voice signals from the center via a telephone line network, input the voice signals to speakers, and convert them into sound, The center includes a line control unit that receives the audio signal from the center through the telephone line network and outputs it to the plurality of terminals, and the center includes a broadcast control unit that calls the line control unit through the telephone line network. A voice broadcasting device characterized by: