JPH05236544A - Remote initializing device for electronic device - Google Patents

Abstract

PURPOSE:To reduce a time required for fault recovery of an electronic device at a remote location by interrupting power application to the electronic device for a prescribed time and then applying power again thereto based on an initial izing command signal. CONSTITUTION:When a feeding tentative interruption device 24 of a terminal equipment 2 is called and an initializing command signal SS is received via a telephone line KSn, a telephone line interface (I/F) section 41 outputs a power supply entire interruption signal 41g, a power supply interruption section 43 interrupts the supply of commercial power supply to a data communication section 23 for a time set by a timer means 43a based on the power supply entire interruption signal 41g and simultaneously a power supply interrupt section 44 interrupts the supply of commercial power supply to a data processing section 22 for a time set by a timer means 44a. Since the data communication section 23 and the data processing section 22 are provided with functions such as power-ON initializing, the initializing is implemented after the commercial power supply is applied again and each electric device for the data communication section 23 and the data processing section 22 is restored to the initial state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to remote control of an electronic device which can initialize (reset, restart) an electronic device constituting a terminal device such as a remote monitoring system or a remote control system via a telephone line. Regarding the initialization device.

[0002]

2. Description of the Related Art Remote monitoring systems and remote control systems are widely known. These systems connect various devices such as various data and various control commands by connecting a central device installed in a monitoring center or control center with a terminal device installed in a remote place through a wired or wireless transmission path. Etc. are sent and received. Further, there is also known a system in which starting, stopping and initialization of the terminal device side can be remotely controlled from the central device side as necessary.

[0003]

However, if an abnormality occurs in the operation of the electronic device on the terminal device side for some reason,
In particular, when a trouble related to the transmission processing system occurs, the central device side cannot control the terminal device side. In such a case, even if the trouble is minor enough to be recovered by the initialization on the terminal side, in the conventional system, the administrator or the like does not go to a remote place to initialize the electronic device on the terminal device side. This requires a lot of time and effort for restoration, and remote monitoring and remote control become impossible for a long time.

The present invention has been made to solve the above problems, and an object thereof is a remote initialization device for an electronic device capable of reliably initializing an electronic device at a remote place or the like via a telephone line. To provide.

[0005]

In order to solve the above-mentioned problems, a remote initialization device for electronic equipment according to the present invention is an electronic device which is initialized by re-energizing after the power supply is cut off for a predetermined time or longer. It is characterized in that it is provided with a device and a power supply temporary cut-off device that cuts off the power supply to the electronic device for a predetermined time or more and then re-energizes it based on an initialization command signal sent via a telephone line.

[0006]

Upon receipt of the initialization command signal sent via the telephone line, the power supply temporary cutoff device cuts off the power supply to the electronic device for a preset time and then re-energizes. The electronic device performs so-called power-on reset or power-on initial processing based on the energization after the power supply is cut off for a predetermined time. As a result, the electronic device is restarted, so that there is no failure in the hardware configuration, for example, an electronic device that is in trouble due to loss of synchronization or processing interrupted due to abnormal data
It will be restored to the normal operating condition defined by the restart.

Further, since the initialization command signal is transmitted and received through the telephone line, it is not necessary to prepare a special transmission system (dedicated line or wireless channel) for the initialization command. Further, by using the public telephone network, the initialization process can be performed from any place other than the control center.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 2 is an overall block configuration diagram of a remote monitoring and alarm system for snow accretion warning, which is equipped with the remote initialization device according to the present invention. This remote monitoring system 1 includes a terminal device 2 that is installed near a steel tower T on which a power transmission line W is stretched and a steel tower T.
And the monitoring center 3 are connected via the public network 4, and the data related to the tension of the power transmission line collected on the terminal device 2 side is transmitted from the terminal device 2 side to the monitoring center 3 side via the public communication line KDn. The data sent from each terminal device 2 is monitored on the monitoring center 3 side, and if there is a risk that the power transmission line will be cut due to the weight of snow or strong winds, an alarm will be issued to prevent a disconnection accident. It is to make it possible to take a system quickly.

The monitoring center 3 comprises a data communication unit 31, a totaling / monitoring unit 32, a console 33, an alarm device 34, an automatic reporting device 35, and a telephone 36. The data communication unit 31 is composed of a modem having a network control function.
The tallying / monitoring unit 32 is configured by a computer system, processes the data sent from each terminal device 2 via the data communication unit 31 based on a pre-registered tallying processing program, and measures the tension of the power transmission line W. If the value exceeds a preset allowable value, the alarm device 34 is activated and an audible or visible display is made to an observer or the like in the monitoring center 3.

The console 33 is provided with an operating section 33a for giving various input commands and a display section 33b using a CRT or the like, and data relating to the tension of the power transmission line W for each steel tower T is displayed. Is configured. Further, when the tension of the power transmission line W exceeds a preset allowable value, the dangerous place is displayed.

The totalizing / monitoring unit 32 does not make any corresponding input from the console 33 even after a predetermined time has elapsed after the alarm unit 34 is activated to display a warning alarm for preventing the disconnection of the transmission line. If not, or if the console 33 side is set to the automatic monitoring mode, the automatic alarm device 3
5 is activated in the warning / alarm mode, the maintenance station 5 that manages the steel tower T requiring warning is automatically dialed, and a warning message or the like registered in advance is transmitted.

Further, the totalizing / monitoring unit 32 is provided for each terminal device 2
It monitors whether or not the data sent from the device conforms to a predetermined format. If an abnormality is found in the data, the alarm device 34 is activated and the abnormal condition is displayed on the console 33. It is configured to be displayed on the display unit.

The remote monitoring system 1 is configured so that each terminal device 2 periodically transmits data at a preset time or the like.
In this case, the totaling / monitoring unit 32 is configured to issue an alarm when it detects the terminal device 2 that is not regularly contacted.
In addition, in the remote monitoring system 1 that uses the polling method, the terminal device 2 that does not respond to the call from the monitoring center 3
If there is, it is configured to give an alarm.

Then, the totalizing / monitoring unit 32 uses the terminal device 2
Error is detected and the terminal abnormality alarm is issued from the alarm device 34, if no input operation related to necessary treatment is performed from the console 33 within a predetermined time, or the console 33 side is set to the automatic monitoring mode. The terminal device 2
If the data communication function with the terminal is normal but the data sent from the terminal device 2 is abnormal, the data communication unit 3
The initialization command code SC is sent to the terminal device 2 via 1 and the automatic alarm device 35 is activated in the remote initialization mode when the data communication function with the terminal device 2 side is abnormal. ..

The automatic reporting device 35 is an automatic dial device 3.
5a, a called party response detecting device 35b, a message sending device 35c, an initialization command signal sending device 35d, and a voice synthesizing device 35e. This automatic reporting device 35
When the counting / monitoring unit 32 is activated in the alarm mode, the automatic dial device 35a is activated to read the number of the line KH of the maintenance station 5 designated by the counting / monitoring unit 32 from the dial number memory and automatically dial the number. Then, when the called party response detection device 35b detects that the maintenance station 5 has responded based on, for example, the polarity of the telephone line being inverted, it activates the message transmission device 35c and transmits the message registered in advance. To do.

When the automatic reporting device 35 is activated in the remote initialization mode by the totaling / monitoring unit 32, the line of the temporary power interruption device 24 in the terminal device 2 designated by the totaling / monitoring unit 32 is connected. The KSn number is read from the dial number memory and automatically dialed. Then, when the called party response detection device 35b detects the response of the power supply temporary cutoff device 24 which is the called party, it activates the initialization command signal sending device 35d to send the preset initialization command signal SS. is doing.

The initialization command signal SS is composed of a plurality of digits or a number including a function button (asterisk or sharp) using a push button dial signal. This is so that the general-purpose touch-tone telephone can also send the initialization command signal SS.

Furthermore, when the notification destination when an abnormality is detected on the terminal device 2 side on the console 33 side is set to the home of the surveillance staff or another surveillance staff station (hereinafter referred to as other command location) 6, the totaling
The monitoring device 32 activates the automatic alarming device 35 in the terminal abnormality alarm transfer mode, and when the activated automatic alarming device 35 automatically dials the specified alarm transfer destination and detects that the called party responds, When a message prompting the input of a personal identification number indicating a watchman is sent and the signal sent from the watchman side is received by an MF receiver or the like, and the received personal identification number matches a pre-registered personal identification number, The voice synthesizer 35e is activated to voice-synthesize the line number of the power supply temporary cutoff device 24 in the terminal device 2 in the trouble and the number information related to the initial command signal SS of the power supply temporary cutoff device 24, and to the supervisor. It is configured to send.

In FIG. 2, reference numeral KD0 is a data communication line of the monitoring center 3, reference numerals KD1 to KD3 are data communication lines of each terminal device 2, and these lines are connected by a dedicated network other than the public network 4. It may have been done. Reference numeral KS1
KS3 is a telephone line of the power supply temporary cutoff device 24 (described later) of each terminal device 2, reference symbol KH is a telephone line of the maintenance station 5, reference symbol KM is a telephone line for the automatic alarm device 35 in the monitoring center 3, and reference symbol KT. Is a telephone line of the touch-tone telephone 36 installed in the monitoring center 3, and reference numeral KK is a telephone line of the touch-tone telephone 6a installed in the house 6 of the surveillance staff.

FIG. 1 is a block diagram of a terminal device equipped with a remote initialization device for electronic equipment according to the present invention. Each terminal device 2 includes a plurality of sensors 2 that detect the tension of the power transmission line W.
Data processing unit 22 for processing a signal related to tension from 1
And a data communication unit 23 having a network control function, and a power supply temporary cutoff unit 24 for controlling power supply to the data processing unit 22 and the data communication unit 23.

The data processing unit 22 and the data communication unit 2
3 includes a power supply unit (not shown) for supplying a direct current power required for internal operation with a commercial power supply as an input, and when the commercial power supply is cut off for a predetermined time or more, the power is re-energized, The internal processing / operation of the data processing unit 22 and the data communication unit 23 is returned to the initial state by the operation of a power-on initial circuit (not shown) provided in the data processing unit 22 and the data communication unit 23, respectively. It is configured as follows.

The data processing unit 22 uses, for example, a computer system for measurement processing, sequentially takes in signals from each sensor 21 based on a program registered in advance, performs necessary processing, and then transmits them to the data communication unit 23. Request 22
a is generated. The data communication unit 23 that has received the transmission request
After connecting to the monitoring center 3 side via the line KDn and the public network 4, the transmission permission 23a is given to the data processing unit 22, and the transmission data 22b output from the data processing unit 22.
Is received, converted into a predetermined transmission format, and transmitted to the monitoring center 3.

In the case of the polling method, the data on the terminal device 2 side may be transmitted in response to a transmission permission command from the monitoring center 3. In addition, the terminal device 2
When the data related to the tension detected by each sensor 21 is within the allowable range, the measured data is transmitted to the monitoring center 3 at a relatively long time interval (for example, every several hours), and the data related to the tension exceeds the allowable range. In this case, the data may be transmitted frequently at short time intervals. Further, the data of the specific sensor 20 or the like designated based on the received data 23b sent from the monitoring center 3 and received by the data communication unit 23 and output may be transmitted.

The power supply temporary cutoff device 24 includes a telephone line interface (I / F) unit 41 and an initialization code detection unit 42.
And two sets of power cutoff units 43 and 44, and OR means 45
And a power supply unit 46.

Telephone line interface (I / F) section 41
Includes an automatic incoming call unit 41a, a 2-line to 4-line conversion unit (hybrid circuit unit) 41b, a message transmission unit 41c, and an initialization command signal detection unit 41d.

The automatic incoming call section 41a receives an incoming call signal (for example, 16 bits) sent from the public network 4 side through the telephone line KSn.
When the call signal of Hz) is detected, the telephone line KS is automatically
The DC loop of n is closed and the response signal 41e is supplied to the message sending unit 41c.

Upon receiving the response signal 41e, the message sending unit 41c sends a pre-registered message (for example, this is a remote initialization device of the system. Please input a control command). Message 41f sent out
Is a 2-wire to 4-wire conversion unit (hybrid circuit unit) 41b,
It is sent out to the calling party via the automatic receiving unit 41a.

Remote initialization signal SS sent from the calling source
Is supplied to the initialization command signal detection unit 41d via the automatic incoming call unit 41a and the 2-line to 4-line conversion unit 41b. The initialization command signal detection unit 41d determines whether or not the push button dial (PB) signal receiver (PB receiver) and the series of received signals match those set in advance, and if they match. Is provided with a signal determination unit that outputs a power-off signal signal 41g. The power supply total cutoff signal 41g is directly supplied to one power supply cutoff unit 43 and is also supplied to the other power supply cutoff unit 44 via the logical sum means (OR circuit) 45.

The initialization command code detection section 42 constantly monitors the received data 23b, and when it detects a preset initialization command code SC in the received data 23b, it outputs the power supply partial cutoff signal 32a. I am configuring. The power supply partial cutoff signal 32a is supplied to the logical sum means (OR circuit) 45.
Is supplied to the other power cutoff unit 44 via.

Each of the power shut-off sections 43 and 44 has a timer means 4
3a and 44a, and power cutoff means 43b and 44b, respectively. The one timer means 43a is used for the data communication unit 2
Control signal 43c for controlling the power cut-off means 43b to a cut-off state during the time required for surely initializing 3
Is configured to occur. The other timer means 44a
Is configured to generate a control signal 44c for controlling the power-off means 44b to be in the OFF state during the time required to reliably initialize the data processing unit 22.

Each power cutoff means 43b, 44b is constituted by a power semiconductor switch element such as a bidirectional thyristor or a power relay having a break contact structure, and data is cut off via one power cutoff means 43b. Communication unit 2
3 controls the supply of commercial power to the other power source, and the other power source cutoff means 4
The power supply to the data processing unit 22 is controlled via 4b so that the power supply to the data communication unit 23 and the data processing unit 22 can be continuously cut off for a predetermined time.

It should be noted that the timer means 43a and 44a are not provided in the respective power shutoff units 43 and 44, and the power shutoff signal corresponding to the time width for shutting off the power supply is initialized.
Alternatively, the initialization command code detection unit 42 may be configured to generate each.

The power supply section 46 is for supplying a direct current power (DC) to each section in the power supply temporary cutoff device 24 by using the commercial power supply as an input, and even if each of the power cutoff sections 43 and 44 is in the cut-off state. The commercial power supply to the power supply unit 46 is connected to the commercial power supply so as not to be interrupted.

Incidentally. In this embodiment, the configuration using the commercial power supply operation type electronic device is shown, but the same configuration can be applied to an apparatus using the DC power supply operation type electronic device.

With the above configuration, when the temporary power interruption device 24 on the terminal device 2 side is called and the initialization command signal SS is received via the telephone line KSn, the telephone line interface (I / F) unit 41 is Outputs a power shutoff signal 41g, and based on this power shutoff signal 41g, the power shutoff unit 4
3 cuts off the supply of commercial power to the data communication section 23 during the time set by the timer means 43a, and at the same time, the power cutoff section 44 sends the data processing section 22 to the data processing section 22 during the time set by the timer means 44a. Cut off commercial power supply.

Data communication unit 23 and data processing unit 2
Since 2 has functions such as power-on initial, initial processing and the like are performed after the commercial power source is re-energized, and each electronic device such as the data communication unit 23 and the data processing unit 22 is returned to the initial state. ..

From the monitoring center 3 to the data communication line KDn
If the initialization command code SC is sent via the initialization command code SC, the initialization command code detection unit 42 detects the initialization command code SC and outputs the power supply partial cutoff signal 42a. The power cutoff unit 44 is activated via the power cutoff unit, and the power supply to the data processing unit 22 is cut off for a predetermined time.
As a result, only the data processing unit 22 is returned to the initial state.

Based on the initialization command code SC,
If there is no problem even if the data communication unit 23 is initialized, only one of the power cutoff units 43 and 44 is provided, and power is supplied from the power cutoff units 43 and 44 to both the data communication unit 23 and the data processing unit 22. It may be configured. Further, in this embodiment, the case where the number of electronic devices whose power supply is controlled is two is shown, but the number of electronic devices whose power supply is controlled is arbitrary.

[0039]

As described above, the remote initialization device for electronic equipment according to the present invention shuts off the power supply to the electronic equipment for a predetermined time based on the initialization command signal sent through the telephone line. After that, the power is re-energized and the electronic device is power-on reset or power-on initial.
For example, it is possible to restore by remote control an electronic device that is in a slight failure state in which processing or the like is interrupted due to loss of synchronization or abnormal data. Therefore, it is possible to shorten the time required for abnormal recovery of an electronic device located in a remote place or the like, and labor is also improved.

Further, since the initialization command signal is transmitted and received via the telephone line, it is economically advantageous that there is no need to prepare a new transmission system for the initialization command, and the public telephone is used. By using the network, the initialization process can be performed from any place other than the monitoring center and the control center, which is advantageous in terms of system management.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a terminal device including a remote initialization device for an electronic device according to the present invention.

FIG. 2 is an overall block configuration diagram of a remote monitoring alarm system for a snow accretion alarm equipped with a remote initialization device according to the present invention.

[Explanation of symbols]

1 ... Remote monitoring / alarm system, 2 ... Terminal device, 3 ... Monitoring center, 4 ... Public network, 5 ... Maintenance station, 6 ... Monitoring house, etc.
a, 36 ... Telephone (pushphone), 21 ... Sensor for detecting tension of power transmission line, 22 ... Data processing unit, 23 ... Data communication unit, 24 ... Temporary power interruption device, 31 ... Data communication unit, 32 ... Totalization / monitoring Part, 33 ... Operation console, 34 ... Alarm device, 35 ... Automatic reporting device, 41 ... Telephone line interface (I / F) unit, 41d ... Initialization command signal detection unit, 42
… Initialization command code detection unit, 43, 44 ... Power cutoff unit,
43a, 44a ... Timer means, 43b, 44B ... Power supply cutoff means, KDn ... Data communication lines, KH, KK, K
M, Sn ... Telephone line.

Claims (1)

[Claims] 1. An electronic device that is initialized by re-energizing after power supply is cut off for a predetermined time or more, and to the electronic device based on an initialization command signal sent via a telephone line. 2. A remote initialization device for an electronic device, comprising: a power supply temporary cutoff device that re-energizes after the power supply is cut off for the predetermined time or more.