JPH03216054A - Remote control system by isdn public telephone terminal equipment - Google Patents

Abstract

PURPOSE:To attain remote control with high reliability and low communication cost at a high speed by sending and receiving an ID number and remote control information stored on a telephone card through an ISDN D-channel packet communication protocol. CONSTITUTION:A telephone card loading port 18a and a dial button 20 are mounted to an ISDN public telephone set TE1, and an ISDN relating remote control multi-function telephone set TE2 is provided with a line interface 1, a parallel input output port 11. Then an ID number is stored in advance on the telephone card and when the ISDN public telephone set terminal TE1 connecting to the ISDN calls the called party ISDN telephone set terminal TE2, the ID number and remote control information controlling controlled devices EQ1-EQ10 are sent send received by using the ISDN D-channel packet communication protocol the controlled devices are operated or restored by the remote control, information. Thus, the communication cost is reduced with high reliability at a high speed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a remote control method using an ISDN public telephone terminal, and in particular, the present invention relates to a remote control system using an ISDN public telephone terminal, and in particular, the present invention relates to a remote control method using an ISDN public telephone terminal.
N Remote control of controlled equipment connected to telephone terminals I
By SDN public telephone terminal? Regarding distance control method.

[Prior Art] Conventionally, in order to remotely control a controlled equipment group 34 consisting of cooling and heating equipment EQ1 and EQ2 from outside the home using a telephone line, an analog telephone is connected to the subscriber exchange LS as shown in FIG. Dial from the public telephone TE1 to which the line 31 is connected and equipped with a handset 29, display 27, telephone card insertion, and return ports 28a and 28b to the receiving telephone TE2 to which the analog telephone line 32 is connected. The remote control device 33 connected to the line 32 is captured. When the remote control device 33 is captured, the public telephone TE2 is notified by a synthesized voice or audible message that remote control data for the controlled equipment group 34 can be received. When the remote control data determined by the PB signal or voice is sent from the public telephone TE1 to the remote control device 33 via the analog telephone circuits 31 and 32, the remote control device 33 receives the PB signal or voice.
Remote control data is compiled from signals or voices, and the group of controlled devices 34 is controlled based on this remote control data. In addition,? The control includes operation and restoration of the controlled equipment group 34, reporting of the operating status of the controlled equipment group 34, and the like.

[Problems to be Solved by the Invention] In the remote control method using the conventional public telephone TE1 with the above configuration, the remote control device 33 is controlled by a message in the form of synthesized voice or audible signal sent from the remote control device 33 on the called side.
Since the PB signal is sent after confirming that control is possible, the operation is complicated, and it takes a considerable amount of time to finish transmitting the remote control data. Also, if you make a mistake, you have to start the operation again from the beginning. There is a difficulty in having to repeat the steps.

[Object of the Invention] The present invention has been made in view of the above-mentioned difficulties, and is
When calling an ISDN compatible remote control multi-function terminal from a N public telephone, an ID number is stored in a pre-crimped telephone card, and this ID number and remote control information for controlling the controlled device are sent and received using the ISDN D channel packet communication procedure. The purpose of this invention is to provide a remote control system using ISDN public phone terminals that is fast, highly reliable, and can reduce communication costs.

[Means for Solving the Problems] In order to achieve the above object, the remote control method using an ISDN public telephone terminal according to the present invention stores an ID number in advance in a telephone card,
When the N public telephone terminal calls the called SDN telephone system terminal, the ID number and remote control information for controlling the controlled equipment are transmitted to the called SDN public telephone terminal and the called party using the ISDN D channel packet communication procedure. This is a method in which information is transmitted and received between side ISDN telephone terminals, and the controlled equipment is operated and restored using the remote control information.

[Embodiment] An embodiment of a remote control system using an ISDN public telephone terminal according to the present invention will be described in detail below with reference to FIG.

In FIG. 1, TE1 is an ISDN public telephone. I
The SDN public telephone TE1 is equipped with a liquid crystal display 17, a telephone card insertion slot 18a, a telephone card return opening 18b, and a dial button 2o.
You can make normal calls by plugging it into your phone. ID number,
By using a remote control telephone card on which remote control data such as the telephone number of the ISDN-compatible remote control multifunction terminal TE2 and the controlled device EQn are written, remote control can be performed via a telephone line.

The ISDN compatible remote control multi-function terminal TE2 includes an encoder 2,
Decoder 3, 2B+D multiplex, separator 4, clock synchronization 5,
Line interface 1 with D channel access controller 6, parallel input/output port 11, remote button RK
n (n is 1 to 10 for explanation), and the controlled equipment EQn can be operated and restored by operating the remote button RKn or by remote control via the telephone line from the ISDN public telephone TE. can.

For normal calls, the B channel selected by the B channel selector 7 is transmitted via the codec 8 to the handset 9 or speaker 9a.
Let's go. Function button FKn (n=1 is charge display button, n=2 is caller ID display button, n=3 is hold button, n=
4 is the speaker button, n=5 is the operation guidance/network information display switching button) and dial button 15 to display the liquid crystal display 4.
to display the necessary information.

The software transmits and receives the D channel through the serial input/output port 10, internal bus 16a, CPU 16, ROM 12, and R
It is executed in layers 2 to 3 related to AM13, and layer 1 is realized by line interface 1. The sending data is 2B+D multiplexed via the D channel access controller 6.
The demultiplexer 4 multiplexes the signals, the encoder 2 encodes the signals, and the signals are sent to the ISDN via the home termination device DSU2.

The receiving data is sent from the home terminal device DSU2 via the decoder 3, 2B+D multiplexed, separated by the demultiplexer 4, and sent from the D channel access controller 6 and serial input/output port 10 to the internal bus 16a.

In addition, the liquid crystal display 14 displays network information related to incoming and outgoing calls for about 5 seconds, and then presses the function button FKn and the dial button 15.
Display operational guidance such as . Further, when remote control via a telephone line is executed from the ISDN public telephone TE1, data related to the remote control is displayed.

[Operation of the invention] When the remote control telephone card is inserted into the telephone card insertion slot 18a of the ISDN public telephone TE with the above configuration,
The ISDN public telephone TE decodes the ID number and telephone number stored in the remote control telephone card, and provides guidance on the liquid crystal display 17 to specify the controlled device EQn.

When the necessary remote control information is completed by operating the dial button 20, the device name and remote control information of the controlled device EQn are displayed on the liquid crystal display 17.

ISDN public telephone TE■ uses the D channel layer 2 packet information link (SAPI=16) to transmit X. 25
Communication is performed using packet communication procedures (packet level).

The ISDN-compatible remote control multifunction terminal TE2 transmits a layer 3 "call setup" message using the D channel layer 2 signal transfer link (SAP I = 0) and provides the incoming call packet on the selected D channel. ,X. Communication is performed using the 25-packet communication procedure (packet level).

The ISDN compatible remote control multi-function terminal TE2 determines the ID based on the D channel packet information sent via ISDN.
The number is confirmed, and if the ID number is correct, remote control of the victim equipment EQn is executed using the remote control information sent subsequently. In addition, the operation status of the controlled equipment EQn, such as operation and recovery, is confirmed by feedback, and
The channel packet is sent back to the ISDN public telephone TE1.

The transmission and reception of remote control information using the above procedure uses the D channel packet service, so unlike the case where remote control information is transmitted and received directly via the B channel using PB signals, the communication time is short. In addition, incomplete remote control information due to erroneous operation will not cause an abnormal sequence to be sent.

The telephone card in the above embodiment may be replaced with an IC card or the like.

In addition, the ISDN compatible remote control multi-function telephone TE2 is B.
ISD even during communication and data transmission on B2 channel
Since the N D channels for packet transfer can be used independently, there is no possibility of a situation where the device is busy and cannot remotely control the controlled device EQn.

[Effects of the Invention] The remote control system using the ISDN public telephone terminal according to the present invention stores an ID number in advance on a telephone card, and
ISDN public telephone terminal connected to SDN is the receiving IS
When a DN telephone terminal is called, the ID number and remote control information for controlling the controlled device are transmitted and received between the ISDN public telephone terminal and the called ISDN telephone terminal using the ISDN D channel packet communication procedure. Moreover, since the controlled device is operated and restored using the remote control information, it is fast and reliable, and has the effect of reducing communication costs.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a remote control method using an ISDN public telephone terminal according to the present invention, and FIG. 2 is a block diagram of a conventional remote control method using a public telephone terminal. TE1...ISDN public telephone (terminal) TE2
・・・・・・ISDN compatible remote control multi-function terminal (receiving side ISDN telephone terminal) EQn・・・・Controlled device

Claims (1)

[Claims] Store the ID number on the telephone card in advance and use the ISD
The ISDN public telephone terminal connected to
When a telephone terminal is called, the ID number and remote control information for controlling the controlled device are transmitted and received between the ISDN public telephone terminal and the called ISDN telephone terminal using an ISDN D channel packet communication procedure. , and a remote control method using an ISDN public telephone terminal, characterized in that the controlled device is operated and restored using the remote control information.