JPH0715537A - Isdn tele-control system - Google Patents

Abstract

PURPOSE:To execute control without charging by sending in advance a sub address designating a controlled object and a control content via an ISDN line, allowing a terminal equipment side to discriminate the presence of the received address and its content and executing remote control based on the result. CONSTITUTION:An external terminal equipment, that is, a telephone set and a terminal equipment 3 with a controlled object device installed therein are connected via an ISDN network. The terminal equipment 3 is connected to the ISDN network via a line termination device 1 and a line interface 2, and the interface 2 sends/receives a signal with the control section 31 of the terminal equipment 3. Through the constitution above, whether or not a sub address is in existence in a called message from the ISDN network is discriminated and when in existence, the content of the succeeding sub address is discriminated, for example, whether or not codes '10', '11', '20' are included after a password XX is discriminated and when in existence, the controlled device such as an air-conditioner is controlled to lock/unlock its door.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ISDN telecontrol system, and more particularly to an ISDN telecontrol system for remote control via an ISDN line.

[0002]

2. Description of the Related Art A telecontrol system for remotely controlling, for example, ON / OFF of an air conditioner in a room and opening / locking of a door via a telephone line has already been put into practical use.
In such a tele control system, a control drive device of a controlled device is connected to a telephone device, the telephone device is called from a place where the user is out, and the telephone device automatically responds.
After confirming this automatic response, a PB signal (push-phone signal) indicating a control target and contents is dialed out via a telephone line, and the telephone device receives the PB signal and controls the corresponding controlled device.

[0003]

As described above, in the conventional ISDN telecontrol system, after the telephone device dialed through the telephone line automatically answers, it is similarly received through the telephone line. The controlled device is remotely controlled based on the PB signal.
Therefore, in this ISDN telecontrol system, it is essential for the telephone device to which the controlled device is connected to respond to the dialing from the outside, so that the subsequent reception time of the control signal such as the PB signal is charged. Will be done.

Therefore, an object of the present invention is to enable remote control by a telephone via a line without being charged I
It is to provide an SDN telecontrol system.

[0005]

In order to solve the above-mentioned problems, in an ISDN telecontrol system according to the present invention, a controlled device is connected to a terminal device connected via an ISDN network, and a controlled device and a controlled device are connected in advance. A sub-address specifying the control content is added to call the terminal device via the ISDN network, the terminal device judges the received sub-address, and performs the control specified by the sub-address according to the judgment result. Composed.

[0006]

According to the present invention, in order to reliably execute remote control without charge, the subaddress for designating the controlled object and the control content is sent in advance through the ISDN line, and the presence or absence of the subaddress and the content received by the terminal side. Is determined, and remote control is performed based on the determination result.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a flow chart showing an operation processing procedure of an ISDN telecontrol system according to the present invention, and FIG. 2 is a system configuration diagram thereof.

In FIG. 2, an external terminal device (telephone device) and a terminal device 3 near the device to be controlled are installed.
And are connected via an ISDN network. Terminal device 3
Through the line terminating device 1 and the line interface 2
Connected to the SDN network, the line interface 2 exchanges signals with the control unit 31 of the terminal device 3. The terminal device 3 includes a control unit 31, a display unit 32 that displays various kinds of information on the operating state of the terminal device, and a keyboard, a handset, a hook switch, etc. for calling, answering, and talking with other terminal devices. It has an operation unit 33 and a memory 34 for storing an operation program of the control unit 31 and storing a telephone number registered in advance. The control unit 31 determines the sub-address information, which will be described later, with respect to the data received via the line interface 2, the determination unit 310.
And the controlled devices 41 (air conditioners), 42 (locks), 43 connected to the control unit 31 according to the determination result.
(Any other device), ...

Now, in the configuration of FIG. 2, the terminal device is called from outside to make a telephone call. At this time, as the data transmitted via the ISDN network, a subaddress is included in addition to the calling data. The controlled object and the control mode are designated by this subaddress. For example, if the sub-address is "10", turn off the air conditioner,
It is predetermined to instruct ON control of the air conditioner if "11", unlock the door if "20", and lock the door if "21". The content of the subaddress received via the line interface 2 is determined by the subaddress determination unit 310 of the control unit 31, and control is performed according to the determination result.

The operation of this embodiment will be described with reference to FIG. 1. It is judged whether or not the incoming message (call setup) from the ISDN network has a subaddress (step S1). If there is no subaddress, a normal incoming call is received. When the processing is executed and it is determined that there is a sub address, the content of the sub address is determined thereafter. The determination of this sub-address is made as described above, for example, whether or not "10", "11", "20" is included after the personal identification number: XX (steps S2, S3, S4)
In step S2, the sub address is "XX1.
If it is determined to be "0", the air conditioner is turned off,
If it is determined in step S3 that the sub address is "XX11", the air conditioner is ON-controlled, and if it is determined in step S4 that the sub address is "XX20", the door is locked. After that, the control target and the control content are determined according to the predetermined sub-address, and the control operation is performed.

In the above process, the sub-address matching the corresponding remote control is searched for, and if there is a matching sub-address, the corresponding remote control is performed and the IS
When the incoming call acceptance message (call) is sent to the DN network, the caller enters the calling state. On the other hand, if there is no matching sub-address, the caller is in the process of listening to BT by sending an incoming call disabling message (release completion).

In this embodiment, the incoming signal of the ISDN line is different from the incoming signal of the analog line in that various kinds of information can be added. It utilizes the fact that it is not necessary to transmit a control signal).

[0013]

As described above, the IS according to the present invention
The DN telecontrol system sends a subaddress in which the controlled object and the control content are defined in advance via the ISDN line, determines the subaddress received by the terminal side, and performs remote control based on the determination result. The remote control can be surely executed without being interrupted.

[Brief description of drawings]

FIG. 1 is a flowchart showing an operation processing procedure of an embodiment of an ISDN telecontrol system according to the present invention.

FIG. 2 is a basic system configuration diagram of the embodiment of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Line termination device 2 Line interface 3 Terminal device 31 Control part 32 Display part 33 Operation part 34 Memory 41-43 Controlled device 310 Sub-address determination part

Claims (1)

[Claims] 1. A controlled device is connected to a terminal device connected through an ISDN network, and the controlled device is added with a sub-address designating control contents in advance to call the terminal device through the ISDN network. The ISDN telecontrol system, wherein the terminal device determines the received subaddress, and performs control designated by the subaddress according to the determination result.