JPH0897911A - Fault recovery system for exchange system - Google Patents

Abstract

PURPOSE: To minimize an important fault time by recovering a fault of a fault device in a short time on the occurrence of a fault in an exchange system. CONSTITUTION: A terminal equipment TE installed at a remote location apply OFF/ON control of a power supply package POW PKG of equipment frames S0-Sm via a communication line network TN. The OFF/ON control is executed at a power supply control section PRDE via a central control section PRCE of a power supply controller by sending interrupt data and application data from the terminal equipment TE. When the power supply from the power supply package POW PKG is interrupted, various equipment packages GEN PKG are reset and when the power supply is restarted, since the various equipment packages restart control from the initial state, they are restored to a normal operation. Since the fault recovery processing of the exchange system is conducted from a remote location via a communication line network, it is not required for the maintenance personnel to visit a site of the fault and the fault is recovered in a short time and the faulty time of the important fault is minimized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a failure recovery system for recovering a failure of a switching system by controlling a power supply by remote control via a communication network.

[0002]

2. Description of the Related Art Most of the major failures of a switching system or the like are caused by the failure of the standby system or the operating system of the duplexer affecting each other system, and it is as if the normal operating system or the standby system has failed. It is because it looks like. As a means for recovering from such an important failure, the power supply to the failed device (standby system or operating system) has been conventionally turned off. By turning off the power supply, it is possible to avoid an important failure because the failure device does not affect the normal device.

Recently, maintenance systems have been centralized, and some switching systems installed at remote locations are being maintained by a central maintenance office. Regarding the recovery work, the maintenance person rushes directly to the site to perform the power OFF / ON operation to recover the failed device.

[0004]

However, the above-described conventional failure recovery method has the following problems. That is, when a failure occurs in any of the devices constituting the exchange system, the maintenance person has to rush to the site to directly control the power OFF / ON, and the failure continues during the traveling time. Especially when the exchange system is installed in a remote place, it takes a long time for the maintenance person to move, and it takes a long time for the failed device to recover to the normal state. If a failure occurs while I am in charge of maintenance, it is often impossible to rush to the site immediately, so the failure will continue for a longer period of time.

In order to minimize the sickness time of such an important failure, the present invention uses a communication line network to remotely control the power supply to be turned off and on by a central maintenance person, thereby causing a failure device. It is an object of the present invention to obtain a failure recovery method capable of recovering the failure of the normal operation as soon as possible.

[0006]

As a means for solving the above problems, the present invention uses a communication line network to remotely operate a terminal device such as a personal computer to turn off the power.
It was decided to install a power supply control device for controlling ON in the exchange system. Specifically, when the power supply control device and the terminal device are connected via a communication network, the power supply control device transmits identification information (control data etc.) for identifying each power supply to be controlled to the terminal device. The terminal device receives the identification information and registers it as data on the communication partner side. Based on the registered identification information, the power supply to be controlled from the terminal device (power supply of the faulty device) is designated, and the control information is transmitted to the power supply control device to turn the power supply OFF / ON.
Take control.

[0007]

The terminal device and the power supply control device are connected via a communication network, and the power supply can be turned off / on via the power supply control device by operating the terminal device at a remote place. Moreover, the failure of the failed device can be recovered and the failure time can be shortened, so that the downtime of the important failure can be minimized.

[0008]

1 to 4 illustrate an embodiment of the present invention. FIG. 1 is a system configuration diagram, FIG. 2 is an operation system diagram, and FIG. 3 is a block diagram showing one system in detail. FIG. 4 is a connection sequence diagram.

In many cases, a device unit that constitutes an important function in the exchange system is constructed by duplication, and usually operates by one device designated as an active system. When a failure occurs in the operation system, it is generally detected and an alarm is issued, and the other device (standby system) is switched to continue normal operation.

The exchange system EX of the embodiment shown in FIG.
It is configured by a set of a plurality of functionally divided device racks, and the divided device racks are device racks S0 to Sm each equipped with some devices, and these device racks S0 to Sm.
The system is constructed with a common rack CM equipped with a power control device that shares Sm.

The devices mounted on the above-mentioned divided device racks are duplicated. For the part related to the present invention, 0-system and 1-system power supply packages (hereinafter referred to as POW PKG) are provided for the respective device racks S0 to Sm. .) And various device packages (hereinafter referred to as "GENPKG") are mounted to control (OFF / OFF) the 0-system and 1-system POW PKGs.
A power supply control unit (hereinafter referred to as PRDE) for performing ON control) is commonly provided to the 0-system and 1-system POW PKGs, and a monitoring line M and a control line W are provided between the PRDE and POW PKG. Connected by. Also, the above 0
One of the system and the system 1 is set as the active system and the other is set as the standby system, but the correspondence is not fixed.

Further, in the common rack CM, in the part relating to the present invention, various data such as identification codes and monitoring data of each POW PKG of each device rack S0 to Sm are stored and held,
A central control unit (hereinafter referred to as PRCE) for generating OFF / ON control information and exchanging information with the terminal device TE is mounted.

The terminal device TE includes a personal computer (hereinafter referred to as a personal computer) 101 and the pan computer 1.
01 is a display unit, a monitor 102 is a recording output unit, and a modem 105 is a communication unit for communicating with the communication line network TN.
Modem 105 of terminal equipment TE and PR of exchange system EX
Held with CE. PRCE is a communication network T
It has a communication function (modem) with N.

The exchange system EX described above is systematically shown by extracting the portion related to the implementation of the present invention. That is, the PRC of the common rack CM
A set of PRDEs of E and each device rack S0 to Sm (each device rack S
Let PRDE-0 to m correspond to 0 to Sm. ) Can be a power supply control device as a whole, and is a set of POW PKGs of each system of each device rack S0 to Sm (POW-00 to 0m, POW-corresponding to each device rack S0 to Sm).
The length is 10 to 1 m. ) Can be used as a power supply device as a whole, and the GEN P of each system of each device rack S0 to Sm can be used.
KG set (corresponding to each device rack S0-Sm
It is set to 00 to 0 m and GEN to 10 to 1 m. ) Can be various devices of the exchange system as a whole.

Next, the operation of the power supply package OFF / ON control by operating the terminal device in the exchange system will be described mainly with reference to the block diagram of FIG. 3 and the connection sequence diagram of FIG.

When the terminal device TE uses a general public telephone line network as the communication line network TN, it is necessary to connect a specific terminal device and PRCE as a security function, and the connection sequence is as follows.

When the terminal device TE is started, the PRCE is transmitted to the TE.
The dial number registered in advance as the number is sent to the communication network TN to originate the call. The communication unit 1 of the PRCE automatically responds to the incoming call by the above-mentioned outgoing call and returns a response signal to the terminal device TE. The terminal device TE requests CE identification data to the connected PRCE in order to confirm whether or not the terminal device TE is registered, whereby the CE identification data returned from the PRCE and the terminal concerned. The data registered in the device is collated, and if they match, the process proceeds to the next step, and if they do not match, an error occurs and subsequent operations are disabled.

Next, in order to confirm that the cable connection between PRCE and PRDE is normal, the terminal device TE
Makes a device state confirmation request to the PRCE, whereby the PRCE monitors the connection state with the PRDE and returns the information to the terminal device TE via the PRCE. Thereby, the terminal device TE confirms that the connection with the PRDE is normal.

Next, there are a plurality of POW-0s as power supply devices.
0 to 0 m, POW-11 to 1 m (see FIG. 2) can be individually controlled by POW-00 to 0 m and POW-11 to 1 m.
It is necessary to give an identification number to.

In the embodiment, as described above, 0 is set for each device rack.
There are a system and a system 1, and the identification number of the 0-system POW PKG is set to "00-0 m" and the identification number of the 1-system POW PKG is set to "10 to 1 m".

The identification number is set as an individual number by the PRDE number setting unit 14 by inputting individual information such as the type of the rack and the rack number from the POWPKG.

Each POW-00 to 0 m, POW-10 to 1
In order to identify each m, the terminal device TE makes a PRDE ID request to the PRCE. With this, PR
The CE ID request information sending unit 8 sends the ID request information to the PRDE ID request information receiving unit 12, and in response to this, P
The RDE uses the PRDE number setting unit 14 to set different DE-ID data depending on the set conditions.
The PB signal is sent from the signal sending unit 13 to the PRCE. The DE-ID data is sent from all PRDE-0 to m (see FIG. 2). PRCE is PRDE-0
The DE-ID data from ˜m is received by the DE-ID receiving unit 4 via the DE-ID receiving switch 9, stored in the data holding unit 3 via the control unit 2, and the DE-ID
PRDE ID of data to the terminal device TE via the communication unit 1
Send as information.

The terminal device TE collates the transmitted data with the data registered in the terminal device. If they match, the process proceeds to the next step. If they do not match, an error occurs.
Subsequent operations will be disabled.

By collecting the ID information, the terminal device TE is
All power supplies POW-00-0m, POW-10
The state of 1 m (see FIG. 2) is registered. Also, the power supply device P
ON output information from the OW monitoring signal transmitter 16
Information indicating that the N state is present) via the monitoring line M
The power output monitor conversion unit 11 of the DE, the power output monitor unit 7 of the PRCE, and the control unit 2 are stored in the data holding unit 3, and the stored ON output information is stored in the control unit 2 and the communication unit 1.
Is output via the communication network TN to the terminal device TE as ON information (monitoring data).

From the above, the ID on the screen of the terminal device TE is
The output state of the power supply device POW is displayed by various device names and monitoring data for each power supply device POW identified by the information. Moreover, since the monitoring data is updated every time the output state changes, the monitoring data stored in the data holding unit 3 of the PRCE is the latest data. Under normal conditions, the power output unit 17 of the power device POW is
Power line P to control unit 18 of various devices GEN of the exchange system
The power is supplied via the device, and the various devices GEN continue to operate.

Power supply line P of various devices GEN of the exchange system
The operation of turning off the output of will be described below.

The terminal device TE transmits the information of each device to the PRCE.
When it is received, the device status is displayed on the screen, but if the operator specifies a device for controlling the power supply, the device designation data is transmitted to the PRCE via the communication network TN. In response to this, the PRCE returns the device designation approval information to the terminal device TE when all the connected device states are normal.

Next, the terminal device TE inputs a password for power supply control, selects execution, and transmits drive system power-on data. Upon receipt of this data, the drive control unit 5 of the PRCE is turned on and the drive system power supply is turned on. The information that the input is completed is returned to the terminal device TE.

Since the drive control unit 5 is turned on as described above, the power supply device POW can be turned off and on.

Next, the OFF / ON control operation of the power supply device POW will be described.

In the terminal device TE, when disconnection data is input as an OFF control execution request, the control signal transmission unit 6 of PRCE changes the ON control information of the control line W into the OFF control information, and the control signal conversion unit 10 of PRDE. The control line W of becomes the OFF control information. When this OFF control information is received by the control signal receiving unit 15 of the power supply device POW, the power supply output unit 17 is in the power-off state, the power supply to the power supply line P is turned off, and the various devices GEN of the exchange system are turned off. The operation stops.

Further, the monitoring signal transmitting section 16 of the power supply device POW
Is turned off, and the turned off information is transmitted via the monitoring line M to the PRDE power supply output monitoring conversion unit 11 and the PRC.
It is sent to the data holding unit 3 via the power supply output monitoring unit 7 of E and the control unit 2 and stored therein, and the stored information is returned to the terminal device TE as monitoring data. As a result, the fact that the output of the power supply device POW has changed from ON to OFF is displayed on the screen of the terminal device TE, thereby confirming that the OFF control has been normally performed.

Although the OFF control operation has been described above, in the case of the ON control operation, the terminal device TE turns ON.
It is performed by inputting input data as a control execution request, and the operation can be understood by exchanging the word "OFF" and the word "ON" in the description of the OFF control operation.

When the control operation is completed, the following operation is performed to end the power control from the terminal device TE.

When the terminal device TE operates to turn off the drive system power, the drive system power off instruction data is transmitted. In the PRCE, the drive control unit 5 is turned off upon receiving the data,
The drive system power-off completion information is returned to the terminal device TE.

Next, when the terminal device TE performs a TE connection end request operation to end the system, TE connection end request data is transmitted. The PRCE returns the TE connection end approval information to the terminal device TE, and upon receiving this information, the terminal device TE controls the line being connected to be disconnected, whereby the line is released and all the series of operations are performed. Complete and restore normal.

As is apparent from the above description, the identification number "00 to 1 m" of each power supply device POW is transmitted and registered to the terminal device TE each time the terminal device TE accesses the power supply control device. Therefore, the terminal device T
E can be shared by any of different types of exchange systems EX, and a general-purpose personal computer can be used as the terminal device TE.

The control for turning off / on the power supply of one power supply device has been described above, but the identification number "0" in the terminal device TE is used.
By designating a plurality of designations of "0 to 1 m", it is possible to simultaneously control OFF / ON of a plurality of power supply devices.

Further, since the communication line network TN is used, the failure recovery control of the exchange system can be performed from any terminal equipment TE by using a plurality of terminal equipment TE.

Further, in the above embodiment, the exchange system is composed of a set of several device racks, each of the device racks has a duplicated structure, and the present invention is applied to a large-scale system having respective devices. Although it is an example of implementation, the present invention can be implemented in a small-scale exchange system having only one power supply device and being controlled by only one device unit.
It is clear without any arguments. In this case, it is not necessary to set the identification number in the above embodiment.

Further, in the system according to the present invention, since the output states of many power supply devices accommodated in a large exchange system are collectively and collectively monitored by one terminal device TE, the power supply is turned off / on. When performing control, the guard function and collective control function can be performed safely and speedily by changing the operation method, so the maintenance range is expanded and efficient maintenance is possible even when the number of maintenance personnel decreases, such as at night. Becomes

[0042]

As described above, according to the present invention,
By transmitting / receiving data via the communication network by operating a terminal device installed remotely, it is possible to control the turning on / off of the power supply device via the power supply control device, so it is necessary to rush to the site when a failure occurs. There is an effect that the operation of the faulty device can be recovered immediately and the trouble time of the important fault can be minimized.

[Brief description of drawings]

FIG. 1 is a system configuration diagram according to an embodiment of the present invention.

FIG. 2 is an operation system diagram according to an embodiment of the present invention.

FIG. 3 is a block diagram showing details of one system.

[Figure 4] Connection sequence diagram

[Explanation of symbols]

EX ... Exchange system POW PKG ...
Power package CM… Common rack GEN PKG…
Various device packages S0 to Sm ... Device rack PDRE ... Power supply control unit TE ... Terminal device PRCE ... Central control unit TN ... Communication line network M ... Monitoring line W ... Control line P ... Power supply line

Front page continuation (71) Applicant 391010208 Hasegawa Electric Co., Ltd. 1-21-1 Akebono-cho, Tachikawa-shi, Tokyo (72) Inventor Tsuneo Arai 2-5-7 Koishikawa, Bunkyo-ku, Tokyo Meisei Electric Co., Ltd. ( 72) Inventor Toru Matsuno 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Ken Matsumoto 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation ( 72) Inventor Yoshinori Takahashi 24-4 Sakuragaoka-cho, Shibuya-ku, Tokyo Inside Nakayo Communication Co., Ltd. (72) Shinji Murayama 6-10-13 Nakanobu, Shinagawa-ku, Tokyo Daiko Denki Seisakusho (72) Inventor Yasuhiro Miyashita 1-121 Akebonocho, Tachikawa-shi, Tokyo President of the Stock Association Tanikawa Electric Co., Ltd.

Claims (3)

[Claims] 1. A switching system having various devices which are reset when the power is turned off, wherein the switching system is provided with a power control device having an off / on control means for power output to the various devices. Is connected to a communication line network so that the power supply control device can be accessed from a terminal device installed in a remote place, and when a failure occurs in the exchange system, the above-mentioned operation is performed through the communication line network by operating the terminal device. Connect the power control device to the terminal device,
A failure recovery system for a switching system, wherein a failure recovery of the switching system is carried out by turning off / on the power supply output to the above various devices under the control of the terminal device. 2. The failure recovery method of the exchange system according to claim 1, wherein the exchange system is composed of a set of a plurality of functionally divided device racks, and each device rack has various devices. The power supply control device has an off / on control means corresponding to each of the above various devices, and one or more of the above various devices are designated and accessed from the terminal device to perform the designation. A failure recovery method for a switching system that enables a failure recovery operation based on power supply output off / on control for each of one or more various devices. 3. The failure recovery method for the exchange system according to claim 1, wherein the power supply control device further comprises a status monitoring means for power output to various devices and a storage means for monitoring data by the status monitoring means. However, the status monitoring means constantly monitors the power supply output, the storage means always stores the latest status monitoring data, and when the terminal device accesses the power supply control device, A failure recovery method for a switching system in which monitoring data on a designated power supply output is read from the storage means, transmitted to the terminal device, and the monitoring data is displayed on the display unit.