JP2000307747A - Isdn network terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an ISDN terminal that can restart in itself of the occurrence of a fault even when no maintenance personnel is present in the ISDN terminal by using a maintenance unit to centralizedly manage the ISDN terminal from a remote place. SOLUTION: A command analysis section 34 compares whether or not a command received by an ISDN terminal 30 from a remote maintenance unit 20 via an ISDN 10 is coincident with a command stored in a storage section 32, and when the result of comparison indicates coincidence, the section 34 outputs a reset command to a reset execution section 35. The reset execution section 35 receives this command and restarts the ISDN terminal 30. After the restart, a self-diagnosis section 36 diagnoses whether or not each function of the ISDN terminal 30 is faulty and a command transmission section 37 transmits the diagnostic result to the remote maintenance unit 20. When the self-diagnosis section 36 diagnoses any fault, the self-diagnosis section 36 activates a line disconnecting section 38 to disconnect the ISDN terminal 30 from the ISDN 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device for connecting to an ISDN (Integrated Services Digital Network) network, and more particularly to an ISDN terminal device having a function of executing processing such as restart by remote control. is there.

[0002]

2. Description of the Related Art The demand for ISDN terminals is increasing with the spread of the Internet. It is also widely used as a backup line in online systems. Therefore, remote control of the ISDN terminal is an indispensable function, and especially when a failure occurs, it is important to determine the failure. In the online system, it is necessary to effectively operate the channel of the ISDN network by releasing the connection of the terminal device in which the failure has occurred.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to centrally manage a maintenance device from a remote location, and that there is no maintenance person on the side of the ISDN terminal device. It is still another object of the present invention to provide an ISDN terminal device that can clear the failure by restarting the ISDN terminal device when a failure occurs. It is another object of the present invention to provide an ISDN terminal device that can release the connection with the ISDN network even after restarting when the ISDN terminal device has a failure.

[0004]

In order to solve the above-mentioned object, according to the first aspect of the present invention, an ISD is provided by a remote maintenance device.
A receiving unit for receiving a command transmitted through the N network;
A storage unit for storing command information for determining whether or not to perform a self-restart, and comparing whether a command received by the reception unit and command information stored in the storage unit match each other. A command analysis unit that performs a self-restart when the comparison result of the command analysis unit matches the command analysis unit.

According to a second aspect of the present invention, in the first aspect of the present invention, after performing the self-restart, a self-diagnosis section for diagnosing whether or not there is an abnormality in the function of each section; A command transmitting unit for transmitting a diagnosis result of the unit to the remote maintenance device.

According to a third aspect of the present invention, in the first aspect of the present invention, when the diagnosis result of the self-diagnosis unit is received and the function of each unit is diagnosed as abnormal, it is connected to the ISDN network. A line disconnecting unit for disconnecting the line is provided.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic block diagram showing a system configuration of a network to which an ISDN terminal device according to an embodiment of the present invention is applied. In FIG. 1, reference numeral 10 denotes an ISDN network, and reference numeral 20 denotes a remote maintenance device for performing maintenance management of the ISDN terminal device 30 from a remote place via the ISDN network 10.

Next, the ISD connected to the ISDN network 10
The N terminal device 30 will be described. Reference numeral 31 denotes a command I for inquiring the telephone number, sub-address information, and reset request command of the remote maintenance device 20 by the user.
This is an input unit into which D information and the telephone number of the ISDN device 30 are input. Reference numeral 32 denotes a storage unit configured by a non-volatile memory, which stores data input by the input unit 31. The command receiving unit 33 receives a signal transmitted from the remote maintenance device 20 via the ISDN network 10. 34 is the data received by the command receiving unit 33,
A command analysis unit that performs a command analysis by comparing data stored in the storage unit 32.

Reference numeral 35 denotes a reset execution unit that receives the output data of the command analysis unit 34 and restarts the ISDN terminal device 30. 36 indicates that the reset execution unit 35
After restarting the DN terminal device 30, a diagnosis is made as to whether or not the functions of the respective units of the ISDN terminal device 30 operate normally, the diagnosis result is stored, and the command transmission unit 37 is stored.
And a self-diagnosis unit for outputting to the line disconnecting unit 38. The command transmitting unit 37 adds the sub-address information and the command ID information to the telephone number of the remote maintenance device 20 based on the self-diagnosis result stored in the self-diagnosis unit 36,
Send the message to the remote maintenance device 20. The line disconnecting unit 38 receives the diagnosis result from the self-diagnosing unit 36 and disconnects the connection between the ISDN network 10 and the ISDN terminal device 30.

Next, the operation of the ISDN terminal device having the above configuration will be described with reference to the flowchart of FIG. First, after the power is turned on (step A101), the command ID information, the address information, and the like for inquiring the telephone number of the remote maintenance device 20 and the reset request command by the user.
When the telephone number of the ISDN device 30 is input from the input unit 31, the input unit 31 sends the input data to the storage unit 32. The storage unit 32 stores the data sent from the input unit 31 (Step A102).

Next, the telephone number, the subaddress information, and the command I of the ISDN device 30 are sent from the remote maintenance device 20.
When a call setup message in which D information is set is transmitted,
The command receiving unit 33 receives the call setting message.
(Step A103). Then, the command receiving unit 33 sends the received data to the command analyzing unit 34. The command analysis unit 34 reads out the telephone number, sub-address information, and command ID information of the remote maintenance device 20 stored in the storage unit 32, and determines whether the read data matches the data received from the command reception unit 33. A comparison is made (step A104).

When the comparison results match, the command analysis unit 34 activates the reset execution unit 35. Then, the reset execution unit 35 restarts the ISDN terminal device 30 (Step A105). After the restart, the self-diagnosis unit 36 diagnoses whether or not each function of the ISDN terminal device 30 has an abnormality (step A106), and stores the diagnosis result.

Next, the self-diagnosis unit 36 sends the diagnosis result to the command transmission unit 37. Upon receiving the diagnosis result, the command transmitting unit 37 adds the subaddress information and the command I to the telephone number of the ISDN terminal device 30 stored in the storage unit 32.
D information and self-diagnosis result data are added and transmitted to the remote maintenance device 20 via the ISDN network 10 (step A
107). Then, the self-diagnosis unit 36 outputs a drive signal to the line disconnection unit 38 when any of the functions is abnormal. The line disconnecting unit 38 receives this drive signal,
Release the connection between the N network 10 and the ISDN terminal device 30
(Step A108). After releasing the logical connection,
The ISDN terminal device 30 does not accept an incoming call from the ISDN network side.

[0014]

As described above, according to the present invention, a command transmitted from a remote maintenance device is received, and whether the received command matches a command stored in a storage unit is compared. Is performed, and if they match, the integrated service digital network terminal is restarted. Therefore, if a failure occurs, even if there is no maintenance person on the ISDN terminal side, the ISDN terminal can be remotely controlled. There is an effect that the device can be reset.

According to the second aspect of the present invention, after restarting the ISDN terminal device, a diagnosis is made as to whether or not there is an abnormality in the function of each unit of the ISDN terminal device, and the diagnosis result is set in the address. Since the transmission is made to the remote maintenance device, it is possible to know at a remote place whether or not the failure has been cleared by the restart.

According to the third aspect of the present invention, when there is an abnormality in the function of each unit, the self-diagnosis unit sets the ISDN network and the ISD
Since the line with the N terminal device is disconnected, the service can be independently out of service.
There is an effect that the network channel can be used effectively.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing a configuration of an ISDN network system to which an ISDN terminal device according to an embodiment of the present invention is applied.

FIG. 2 is a flowchart illustrating the operation of the device in FIG.

[Explanation of symbols]

 Reference Signs List 10 ISDN network 20 Remote maintenance device 30 ISDN terminal device 31 Input unit 32 Storage unit 33 Command reception unit 34 Command analysis unit 35 Reset execution unit 36 Self-diagnosis unit 37 Command transmission unit 38 Line disconnection unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) H04M 3/22 H04L 11/12 F term (Reference) 5K019 AA02 AC09 BA65 CA04 CD00 DA03 DC02 EA27 EA35 5K027 BB02 CC02 HH15 LL01 5K030 GA11 HB06 HC05 JA10 JT02 KA04 MC06 MC09 MD04 5K036 BB01 BB13 DD11 DD32 DD46 EE01 FF02 KK09 LL02 LL05 5K101 KK11 LL03 NN03 NN21 PP03 TT06 VV04

Claims (3)

[Claims] 1. A receiving unit for receiving a command transmitted from a remote maintenance device via an ISDN network, a storing unit for storing command information for determining whether to perform a self-restart, and the receiving unit A command analysis unit that compares whether the received command and the command information stored in the storage unit match, and when the comparison result of the command analysis unit matches,
An ISDN network terminal device, comprising: a reset execution unit that performs self-restart. 2. A self-diagnosis unit for diagnosing whether there is an abnormality in a function of each unit after performing the self-restart, and a command transmission for transmitting a diagnosis result of the self-diagnosis unit to the remote maintenance device. The ISDN network terminal device according to claim 1, comprising: 3. A line disconnecting unit for disconnecting a line connected to an ISDN network when a function of each unit is diagnosed as abnormal in response to a diagnosis result of the self-diagnosing unit. The ISDN network terminal device according to claim 1, wherein