JP2003289396A - Interphone system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To modify a hardware section to be modified of a designated particular terminal by software data by remote control. <P>SOLUTION: An interphone system is provided with a controller 1 for performing exchange control of speech communication and a plurality of terminals 2a, 2b,..., 2n for performing speech communication under the exchange control of the controller. Each of the terminals has an address comparing part 33 for recognizing a self-station address in a designated particular terminal in order to modify the hardware section to be modified of the terminal by remote control, a command decoding part 35 for recognizing a modification command, and the hardware section 36 to be modified with modifying data from the command decoding part. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom system, and more particularly to an intercom system capable of remotely changing hardware and software data of a specified specific terminal.

[0002]

2. Description of the Related Art Conventionally, an intercom device of this type is known as shown in FIG. In the figure, a conventional intercom device includes a control device 5 for performing exchange control of a call and a plurality of terminals 6a, 6b, ..., 6n for making a call by exchange control of the control device, and the control device 5 transmits data. Each terminal 6a, 6b, ..., Via the line L10
It is connected to 6n.

The control device 5 transmits a control data to a transmission circuit 51 (hereinafter referred to as a "control device transmission circuit 51") for performing multiplex transmission of voice data and control data and each terminal 6a, 6b, ..., 6n. , And each of the terminals 6 a, 6 b, ...
A receiving circuit 53 that receives control data from 6n (hereinafter referred to as "control device receiving circuit 53") and a line switching circuit 54 that performs line switching of a communication line (hereinafter referred to as "control device line switching circuit 54"). And a CPU 55 that controls the exchange of the communication line (hereinafter referred to as "control device CPU 55").
And a reset signal generation circuit 56 that generates a reset signal under the control of the control device CPU 55. Here, the control device CPU 55 is connected to the control device transmitting circuit 52, the control device receiving circuit 53, the control device circuit switching circuit 54, and the reset signal generating circuit 56, and these control device transmitting circuit 52, control device receiving circuit 53, The controller transmission circuit 51 is connected to the controller circuit switching circuit 54 and the reset signal generation circuit 56.

Each of the terminals 6a, 6b, ..., 6n has a transmission circuit 61 (hereinafter referred to as "terminal transmission circuit 61") for performing multiplex transmission of voice data and control data, and control data to the control device. And a receiving circuit 63 (hereinafter referred to as "terminal receiving circuit 63") for receiving control data from the control device, and a call and response, A CPU 64 (hereinafter, referred to as "terminal CPU 64") that controls a call and a call end.
A channel selection switch 65 for selecting a call destination, a call / answer switch 66 for calling and answering, a display unit 67 for displaying a status such as an incoming call or a call, and a voice signal converted into a digital signal, A codec 68 for converting a digital signal into an audio signal, a speaker 69 for outputting the audio signal, a microphone 70 for inputting the audio signal, a first memory 71 storing software of a communication function part of the terminal, and an extended function part. A second memory 72 storing the software of (1) and a reset signal detection circuit 73 for detecting a reset signal from the control device. Here, each terminal 6a, 6b,
.., 6n of the terminal CPU 64, the terminal transmitting circuit 62, the terminal receiving circuit 63, the tuning switch 65, the call / answer switch 66, the display unit 67, the codec 68, the first,
Connected to the second memories 71 and 72 and the reset signal detection circuit 73, the terminal transmission circuit 62 and the terminal reception circuit 6 are connected.
3, the terminal transmission circuit 61 is connected to the codec 68 and the reset signal detection circuit 73, and the codec 68 is
The speaker 69 and the microphone 70 are connected. Further, the terminal transmission circuit 61 of each of the terminals 6a, 6b, ..., 6n is connected to the control device transmission circuit 51 via the transmission line L10.

By the way, in the intercom apparatus having such a configuration, it is necessary to upgrade the version of the terminal according to the usage status of the terminal, and it may be necessary to promptly recover the malfunction that has occurred in the terminal. .

Next, a method of changing the software and software of the terminal in the intercom apparatus having such a configuration will be described.

First, under the control of the control unit CPU 55,
Change request data is output from the control device CPU 55, and the change request data is sent to each terminal 6a via the control device transmission circuit 52, the control device transmission circuit 51, and the transmission line L10.
, 6n are transmitted to the terminal transmission circuit 61. The change request data is sent to the terminal CP via the terminal receiving circuit 63.
When it is transmitted to U64, it is controlled by the terminal CPU 64.
The software data stored in the first memory 71 is rewritten. Similarly to the above, by sending other change request data from the control device CPU 55, the software data stored in the second memory 72 can be rewritten.

After the software data is rewritten in this way, the reset signal generation circuit 56 outputs a reset request signal under the control of the control unit CPU 55, and the reset request signal is routed in the same way as the change request data. , 6n to the terminal transmission circuit 61 of each terminal 6a, 6b, ..., 6n.

The reset request signal is sent to each terminal 6a, 6
When detected by the reset signal detection circuit 73 of b, ..., 6n, a reset detection signal is output from the reset signal detection circuit 73, and this reset detection signal is transmitted to the terminal CPU 64. When the reset signal is detected by the terminal CPU 64, the terminal CPU 64 is reset, and the terminals 6a, 6b, ..., 6n are restarted, and the change of the software data is completed.

[0010]

However, in the intercom apparatus having such a configuration, since the change request data is sent to all the terminals 6a, 6b, ..., 6n, it depends on the usage situation. , There was a difficulty that the hardware and software data of a specific terminal could not be changed.

The present invention has been made in order to solve such a problem, and an object thereof is to provide an intercom apparatus capable of remotely changing the hardware and software data of a specified specific terminal. .

[0012]

In order to achieve such an object, an intercom device of the present invention comprises a control device for performing exchange control of a call, and a plurality of terminals for making a call by exchange control of the control device. Each terminal has an address comparison unit for recognizing its own address at the terminal to be changed and a command decoding unit for recognizing the change command in order to remotely change the hardware of the specified specific terminal, and command decoding. A changeable hardware unit that changes the hardware according to change data from the unit.

Further, the intercom system of the present invention is configured so that a specific part in the changeable hardware part of the specified specific terminal can be changed by several kinds of change commands.

Further, the intercom apparatus of the present invention is configured such that a memory is formed in a changeable hardware section whose hardware can be changed and software data can be changed.

According to the intercom apparatus of the present invention, each terminal is provided with the address comparing section for recognizing its own address and the command decoding section for recognizing the change command. Hardware and software data can be changed remotely.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the intercom system of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an intercom system according to the present invention.

In the figure, an intercom system according to the present invention comprises a control device 1 for controlling exchange of calls and a plurality of terminals 2a, 2b, ...
, And the control device 1 is connected to the terminals 2a, 2b, ..., 2n via the transmission line L1.

The control device 1 includes a transmission circuit 11 (hereinafter referred to as "control device transmission circuit 11") for performing multiplex transmission of voice data and control data, and a transmission circuit 12 (hereinafter referred to as "control device transmission circuit 11") for transmitting control data to a terminal. A control device transmission circuit 12 "), a reception circuit 13 for receiving control data from a terminal (hereinafter referred to as" control device reception circuit 13 "), and a circuit switching circuit 14 for switching a communication line (hereinafter referred to as" switching circuit 14 "). It is provided with a "control device line switching circuit 14") and a CPU 15 (hereinafter referred to as "control device CPU 15") for controlling exchange of a communication line. Here, the control device CPU15
Is connected to the control device transmission circuit 12, the control device reception circuit 13 and the control device line switching circuit 14, and the control device transmission circuit 12, the control device reception circuit 13 and the control device line switching circuit 14 are connected to the control device transmission circuit 11. It is connected.

Each of the terminals 2a, 2b, ..., 2n has a transmission circuit 21 (hereinafter referred to as "terminal transmission circuit 21") for performing multiplex transmission of voice data and control data, and control data to the control device. And a receiving circuit 23 (hereinafter referred to as "terminal receiving circuit 23") for receiving control data from the control device, a calling circuit, a response, A CPU 24 (hereinafter, referred to as "terminal CPU 24") that controls a call and a call end.
A channel selection switch 25 for selecting a call destination, a call / answer switch 26 for calling and answering, a display unit 27 for displaying a status such as an incoming call or a call, and a speaker 28 for outputting a voice signal. A microphone 29 for inputting an audio signal, a D / A converter 31 for converting a digital signal into an audio signal and outputting it to the speaker 28, and an A / D converter 32 for converting an audio signal input from the microphone 29 into a digital signal. , An address comparison unit 33 for comparing the address in the received data from the control device with the own station address, an address setting switch 34 for setting the own station address, and a command for decoding the command in the received data from the control device It comprises a decryption unit 35 and a changeable hardware unit 36 capable of making changes. Further, the changeable hardware unit 36 includes a memory 36a storing software of a communication function portion of the terminal and software of an extended function portion, a first specific portion 36b including an audio format converting portion, and a video format converting portion. The second specific portion 36c and the communication processing unit 36d that transmits and receives data are provided. Here, the changeable hardware unit 36 is the terminal transmission circuit 2
2, the terminal receiving circuit 23, the terminal CPU 24, and the command decoding unit 35. The terminal transmitting circuit 21, the terminal receiving circuit 23, and the command decoding unit 35 are connected to the terminal transmission circuit 21.
Are connected. The address comparison unit 33 is connected to the terminal transmission circuit 21, the terminal reception circuit 23, the address setting switch 34, and the command decoding unit 35, and the terminal CP.
U24 is a tuning switch 25, a call / answer switch 2
6, the first specific part 36b, the second specific part 36c, and the communication processing part 36d, and the speaker 28 is connected to the first specific part 36b via the D / A converter 31.
However, the microphone 29 is connected via the A / D converter 32,
The display unit 27 is connected to the second specific portion 36c. Further, the terminal transmission circuit 21 of each of the terminals 2a, 2b, ..., 2n is connected to the control device transmission circuit 1 via the transmission line L1.
Connected to 1.

Next, the operation of the intercom apparatus thus constructed will be described.

First, the basic operation from calling to establishment of a call will be described.

First, a certain terminal 2a (hereinafter referred to as "first terminal 2
a ”. ) Channel selection switch 25, the adjacent terminal 2
b (hereinafter, referred to as “second terminal 2b”) and pressing the call / answer switch 26 causes the communication processing unit 36d to control the first and second terminals under the control of the terminal CPU 24 of the first terminal 2a. A call signal containing the addresses of the terminals 2a and 2b is output, and the call signal is transmitted via the terminal transmission circuit 22, the terminal transmission circuit 21, the transmission line L1, the control device transmission circuit 11, and the control device reception circuit 13. CPU15
Transmitted to.

Here, if the line is free, the control device C
A call request signal containing the address of the second terminal 2b and a call confirmation signal containing the address of the first terminal 2a are output from the PU 15, and the former call request signal is the control device transmitting circuit 12 and the control device transmitting circuit 11. And transmission line L
1 to the terminal transmission circuit 21 of the second terminal 2b. Then, the terminal transmission circuit 21 of the second terminal 2b
The address of the second terminal 2b is taken out from the call request signal, and the address and the address setting switch 3 are set in advance.
The address comparing unit 33 compares the address of the own station set by No. 4 in the address comparing unit 33. When the two addresses match, the terminal receiving circuit 23 of the second terminal 2b operates, whereby the call request signal is transmitted to the communication processing unit 36d. Then, the call request signal is transmitted to the second terminal 2
When detected by the terminal CPU 24 of b, the second specific portion 3
6c (video format conversion unit) is controlled, and the fact that a call is being made from the first terminal 2a is displayed on the display unit 27 of the second terminal 2b.

On the other hand, the latter call confirmation signal is sent to the control device transmission circuit 12, the control device transmission circuit 11, and the transmission line L1.
Is transmitted to the terminal transmission circuit 21 of the first terminal 2a. Then, the address of the first terminal 2a is extracted from the call confirmation signal by the terminal transmission circuit 21 of the first terminal 2a, and the address and the address setting switch 34 are set in advance.
The own station address set by is the address comparison unit 3
Compared in 3. When the two addresses match, the terminal receiving circuit 23 of the first terminal 2a operates, and the call confirmation signal is transmitted to the communication processing unit 36d. Then, the call confirmation signal is transmitted to the first terminal 2a.
When detected by the terminal CPU 24 of the
c (video format conversion unit) is controlled, and the fact that the second terminal 2b is called is displayed on the display unit 27 of the first terminal 2a.

When the call / answer switch 26 of the second terminal 2b is pressed, the terminal CPU2 of the second terminal 2b is pressed.
Under the control of 4, the response signal containing the addresses of the first and second terminals 2a and 2b is output from the communication processing unit 36d, and this response signal is sent to the terminal transmission circuit 2 of the second terminal 2b.
2, the control device C via the terminal transmission circuit 21, the transmission line L1, the control device transmission circuit 11, and the control device reception circuit 13.
It is transmitted to the PU 15. When the response signal is detected by the control device CPU15, the circuit switching circuit 14 is controlled, and at the same time, the control device CPU15 outputs a call start request signal, and the call start request signal is output from the call request signal and the call. The confirmation signal is transmitted to the terminal CPU 24 of each of the first and second terminals 2a and 2b via the same route. When such response signals are detected by the terminal CPUs 24 of the first and second terminals 2a and 2b, respectively, the first specific parts 36b of the first and second terminals 2a and 2b are detected.
(Voice format converter) is controlled.

Then, in this state, the first terminal 2
When a voice signal is input from the microphone 29 of a, the voice signal is converted into a digital signal by the A / D converter 32 of the first terminal 2a, and the first specific portion 36b (voice format conversion unit) transmits to the terminal. Circuit 22, terminal transmission circuit 21,
It is transmitted to the D / A converter 31 of the second terminal 2b via the transmission line L1, the terminal transmission circuit 21 of the second terminal 2b, the terminal reception circuit 23, and the first specific portion 36b (audio format conversion unit). , Is converted into an analog signal in the D / A converter 31, and a voice signal is output from the speaker 28 of the second terminal 2b.

Similarly, the microphone 29 of the second terminal 2b
The voice signal input from the first terminal 3b is also converted into a digital signal by the A / D converter 32 of the second terminal 2b.
6b (audio format conversion unit), terminal transmission circuit 22,
D / A conversion of the first terminal 2a via the terminal transmission circuit 21, the transmission line L1, the terminal transmission circuit 21 of the first terminal 2a, the terminal reception circuit 23, and the first specific portion 36b (audio format conversion unit). To the first terminal 2 and is converted into an analog signal by the D / A converter 31.
An audio signal is output from the speaker 28 of a. As a result, a call is established between the first and second terminals 2a and 2b.

Next, the setting data of the first specific part 36b (sound format conversion part) which constitutes the changeable hardware part 36 of the specific terminal, for example, the first terminal 2a is remotely from the control device 1. A method for changing the setting will be described.

First, under the control of the controller CPU15,
Change request data containing the address of the first terminal 2a is output from the control device CPU15, and the change request data is sent to the terminal transmission circuit 21 of the first terminal 2a via the same route as the call confirmation signal described above. Is transmitted. Then,
In the terminal transmission circuit 21 of the first terminal 2a, the address of the first terminal 2a is extracted from the change request data, and the address of the first terminal 2a and the own station address set by the address setting switch 34 in advance. And are compared in the address comparison unit 33. When the two addresses match, the terminal receiving circuit 23 of the first terminal 2a operates, whereby the change request data is transmitted to the command decoding unit 35, and in the command decoding unit 35, the change request data is sent. The first command is deciphered
Is transmitted to the specific portion 36b of the. As a result, the setting data of the first specific portion 36b forming the changeable hardware unit 36 of the first terminal 2a is rewritten.

When the reset request signal is sent from the control device CPU 15 after the setting data of the first specific portion 36b is rewritten in this way, the reset request signal passes through the same route as the above-mentioned change request data. It is transmitted to the changeable hardware unit 36 of the first terminal 6a via the via. Then, when the reset signal is detected by the terminal CPU 24 via the changeable hardware unit 36, the changeable hardware unit 36 is reset by the control of the terminal CPU 24, and the first terminal 6a is restarted. This completes the change of the setting data of the first specific portion 36b.

Similarly to the above, by sending other change request data and another reset signal from the control device 1, the setting data of the second specific portion 36C of the first terminal 2a and the software data of the memory 36a are sent. Can be changed.

In the above-mentioned embodiment, the case where the change request data is sent from the control device to the specified specific terminal has been described, but even if it is sent to the specified specific terminal via the external network. Good.

[0034]

As is apparent from the above description, according to the intercom apparatus of the present invention, each terminal is provided with an address comparing section for recognizing its own address and a command decoding section for recognizing a change command. Being provided, the hardware and software data of a particular terminal can be changed remotely. Further, the hardware and software data of a specific terminal can be changed while the terminal is connected to the control device, that is, under the hot line.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an intercom apparatus according to the present invention.

FIG. 2 is a block diagram of a conventional intercom device.

[Explanation of symbols]

1 ... Control devices 2a, 2b, ..., 2n Terminal 33 ... Address comparison unit 35 ... Command decoding unit 36 ... Changeable hardware part 36a ... Memory 36b ... First specific part (audio format conversion part) 36c ... Second specific part (video format conversion part)

Claims (3)

[Claims] 1. A control device (1) for controlling exchange of calls,
A plurality of terminals (2
a, 2b, ..., 2n), and each terminal has an address comparison unit (33) for recognizing its own address in the changed terminal in order to remotely change the hardware of the specified specific terminal. An intercom apparatus comprising: a command decoding unit (35) for recognizing a change command and a changeable hardware unit (36) for changing the hardware according to change data from the command decoding unit. 2. The intercom apparatus according to claim 1, wherein a specific part (36b, 36c) in the changeable hardware part of the specified specific terminal can be changed by several kinds of change commands. 3. The intercom apparatus according to claim 1, wherein a memory (36a) is formed in the changeable hardware part capable of changing the hardware so that software data can be changed.