JP2003044416A - Remote controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enables a remote control, which is performed by a remote controller by using an electronic mail sending and receiving function, to remotely control an object device without spoiling real-time response by using only a terminal with a conventional mail function and a network. SOLUTION: An incoming mail input part 112 inputs mail arriving at a terminal 200, a command mail selection part 120 selects command mail 701 wherein a process command for controlling the object controlled device 160 is described from the incoming mail, and a command execution part 142 executes the process command described in the command mail 701. Further, a monitor part 143 monitors the execution result of the process command, a reply mail editing part 144 edits reply mail 706 wherein the monitor result is described, and a reply mail transmission part 145 requests the terminal 200 to send the reply mail. Further, the monitor part 143 detects a fault of the object controlled device 160, the reply mail editing part 144 edits fault notice mail 802 wherein the detected fault is described, and the reply mail transmission part 145 requests the terminal 200 to send the fault notice mail 802.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device, and more particularly to a remote control device for performing remote control using an electronic mail transmission / reception function. Along with the recent development of communication technology, remote control of a target control device, for example, maintenance management technology has also been developed. In such a remote control device, it is important how to transmit a control command for controlling the target control device.

[0002]

2. Description of the Related Art FIG. 9 shows an example (1) of a conventional remote control device. An example of a remote control device (remote maintenance system) disclosed in Japanese Patent Laid-Open No. 10-55291 and an example of remote control using a public line are shown. In the conventional example (1), the maintenance-dedicated terminal 431 or 432 remotely maintains the maintenance target device 101.

The remote maintenance system disclosed in Japanese Unexamined Patent Publication No. 10-55291 is connected to each other via LAN 304 and the maintenance target device 10
1, Internet server 451, and firewall 44
1 and a maintenance-dedicated terminal 431 connected to the firewall 441 via the Internet 303.

In the remote maintenance system, the maintenance target device 101 performs self-diagnosis and sends a message indicating the diagnosis result to the server 451 via the Internet (LAN 304 in the figure). The server 451 decrypts the received message, stores the maintenance information necessary for maintenance, and calls the maintenance-dedicated terminal 431.

The maintenance-dedicated terminal 431 refers to the maintenance information stored in the server 451 and executes the maintenance of the maintenance target device 101. An example of remote control using a public line is as shown in the figure.
This is a method in which the maintenance-dedicated terminal 432 controls the maintenance target device 101 via the public line 302 and the modem 461. The maintenance manager remotely logs in from the maintenance-dedicated terminal 432 to remotely control the maintenance target device 101.

FIG. 10 shows a conventional remote control device example (2). The conventional example (2) is different from the conventional example (1) in that a maintenance-dedicated terminal 431 or 432 (for example, a notebook PC) is connected to a mobile phone 401, and the mobile phone 401 passes through a mobile network 301. Connected to the Internet 303 or the public network 302.

Even with such a connection, the conventional example (1)
It is possible to realize the methods of and
The maintenance manager uses the maintenance-only terminal 431 or 432 and the mobile phone 40.
Carrying 1 allows maintenance of the maintenance target device 101 from anywhere. In addition, when a failure occurs in the maintenance target device 101, the conventional example of notifying the maintenance administrator of this failure is as follows.
In addition to the method shown in the conventional example (1), there is a method of fetching an incoming mail to a mobile phone from a PC or the like connected to the mobile phone.

According to this method, the PC periodically searches for incoming mail and fetches it in the PC only when there is mail. further,
Japanese Patent Laid-Open No. 7-170321 and Japanese Patent Laid-Open No. 2000-307723 are examples of conventional examples of notifying a maintenance manager of a failure of the maintenance target device 101.

The maintenance target device (exchange) 101 disclosed in Japanese Patent Laid-Open No. 7-170321 is a system for calling a specific portable wireless receiving means by using a wireless calling means provided in itself. The maintenance target device (exchange) 101 disclosed in Japanese Patent Laid-Open No. 2000-307723 is a mobile device located closest to the maintenance target device 101 based on position information (included in the server) between the mobile device and the exchange. Is a method to notify.

[0010]

In such a conventional remote control device, the maintenance manager goes to the place where the maintenance-specific terminal 431 or 432 is located and performs the remote control operation, or the maintenance-specific terminal 431 or It is necessary to carry around a notebook PC and a mobile phone 401 that operate as 432.

For example, when a maintenance manager needs to perform maintenance work urgently during a vacation, there is a problem in that he / she cannot usually handle it because there is no maintenance terminal. In addition, the method in which the PC periodically searches for incoming mails increases the load on the PC, and if the search interval is increased to reduce the load, real-time performance is impaired.

Therefore, according to the present invention, in a remote control device for performing remote control using a mail transmission / reception function, a target control device can be remotely controlled without impairing real-time performance by using only a terminal and a network having a conventional mail function. The task is to do.

[0013]

In order to solve the above-mentioned problems, the remote control device of the present invention has an incoming mail receiving unit for taking in an incoming mail to a connected terminal, and a processing command from the incoming mail. It is characterized by comprising a command mail selecting section for selecting a command mail in which is described, and a command executing section for executing the processing command described in the selected command mail (claim 1).

FIG. 1 shows the principle of a remote control device 100 according to the present invention. The terminal 200 connected to the remote control device 100 can receive a mail from the mobile phone 401 via the mobile network 301. The terminal 200 is
A mobile terminal (for example, a mobile phone) having a function of receiving an email, a fixed terminal (for example, a fixed phone), a dedicated terminal, or the like can be used. Further, the mobile network 301 can be, for example, a mobile network, a fixed network, or a network combining these mobile networks and fixed networks as long as it is a network capable of transmitting mail.

The mobile telephone (mobile terminal) 401 may be a fixed terminal or a dedicated terminal as long as it is a terminal capable of transmitting mail. Also, in the figure, the terminal
Although 200 is arranged outside the remote control device 100, it may be arranged inside the remote control device 100.

The holder of the mobile phone 401 transmits a general mail addressed to the terminal 200 or a command mail describing control information (processing command), and the terminal 200 receives these general mail or command mail. In the remote control device 100, the incoming mail receiving unit 112 takes in the incoming mail to the terminal 200, and the command mail selecting unit 120 selects the command mail in which the processing command is described from the received incoming mails.

The command execution unit 142 executes the processing command described in the command mail. Thus, the owner of the mobile phone 401 can remotely control the target control device 160 by transmitting the command mail. Note that this remote control does not require the Internet server 451 which is a component of the remote maintenance system disclosed in Japanese Patent Laid-Open No. 10-55291 of Conventional Example (1).

Further, in the present invention according to the above-mentioned present invention, a monitoring unit that monitors the execution result of the processing command and outputs the monitoring result, and a reply mail editing unit that edits a reply mail describing the monitoring result. And a reply mail sending unit for requesting the terminal to send the reply mail (claim 2).

That is, as shown in the figure, the monitoring unit 143 monitors the execution result of the processing command and outputs the monitoring result. The reply mail editing unit 144 edits the reply mail describing the monitoring result, and the reply mail sending unit 145 requests the terminal 200 to send the reply mail. The reply email is, for example,
The mobile phone 401 receives the call through the terminal 200 and the mobile network 301. As a result, the owner of the mobile phone 401 can know the execution result of the transmitted command mail.

Further, in the present invention according to the above-mentioned present invention, the command mail selecting section selects a latest incoming mail from a plurality of received incoming mails, and a latest mail selecting section. It is possible to provide a command recognition unit that recognizes whether or not the processing command described in the command mail of the mail is a predetermined correct command (claim 3).

That is, as shown in the figure, the command mail selecting section 120 includes a latest mail selecting section 121 and a command recognizing section.
It has 122. The latest mail selection unit 121 selects from among a plurality of incoming mails captured as one sentence data,
Select the latest incoming mail. The command recognition unit 122
It recognizes whether the processing command described in the command mail of the latest incoming mail is a predetermined correct command and selects the correct command.

As a result, only the latest mail among the mails received by the terminal 200 is selected and the wrong processing command is not executed. Further, the present invention according to the above-mentioned present invention further comprises an erroneous input prevention unit that does not accept the input of the command mail in which the difference between the transmission time of the command mail and the arrival time of the command mail exceeds a preset valid time. It is possible (Claim 4).

That is, the erroneous input prevention unit 130 shown in FIG.
Does not accept the input of this command mail when the difference between the transmission time of the command mail and the arrival time of the command mail exceeds a preset valid time. As a result, for example, it becomes possible to prohibit the execution of the processing command included in the command mail delayed by a predetermined time or more due to network delay or the like.

Further, in the present invention according to the above-mentioned present invention, the monitoring unit detects a failure of the target control device, the reply mail editing unit edits a failure notification mail describing the detected failure, and the reply mail is returned. The mail sending unit can request the terminal to send the failure notification mail (claim 5).

That is, in the figure, the monitoring unit 143 is
During normal operation, the target control device 160 is monitored and its failure is detected. When the monitoring unit 143 detects a failure, the reply mail editing unit 144 edits the failure occurrence notification mail describing the detected failure, and the reply mail sending unit 145 requests the terminal 200 to send the failure occurrence notification mail. To do.

The fault notification mail is received by the mobile phone 401 via the terminal 200 and the mobile network 301, for example. As a result, the maintenance manager who owns the mobile phone 401 can recognize the occurrence of a failure in real time without regularly searching the incoming mail, and the failure content indicated in the failure notification mail can be confirmed. By sending a command mail that describes the corresponding processing command to the terminal 200,
It becomes possible to perform maintenance and repair of the target control device 160.

Further, in the present invention according to the above-mentioned present invention, the incoming mail fetching unit can fetch the mail based on a mail incoming notification from the terminal (Appendix 6). That is, the terminal 200 notifies the incoming mail receiving unit 112 when the mail arrives. Based on this notification, the incoming mail receiving unit 112 takes in the mail. As a result, the incoming mail capturing unit 112 can efficiently capture an email in real time as compared with the method of periodically searching for incoming calls.

Further, in the present invention according to the above-mentioned present invention, as the terminal, at least one of a mobile terminal capable of receiving mail, a fixed terminal and a dedicated terminal can be used (Appendix 7). That is, as the terminal 200,
For example, it may be a mobile phone capable of receiving mail, a fixed phone, a dedicated terminal, or the like.

Further, the operator or the maintenance manager can use a mobile telephone, a fixed telephone, a dedicated terminal or the like which can send an e-mail depending on, for example, working conditions. Especially when a mobile terminal is used as the terminal, the maintenance manager is not limited to the current position.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment (1): Remote Control Operation Procedure FIG. 2 shows an embodiment (1) of a remote control device according to the present invention. In this embodiment (1), a private branch exchange 100 which is remotely controlled by a maintenance manager is shown as a remote control device. The private branch exchange 100 is connected with a mobile phone 200 as a terminal capable of sending and receiving mail.
Is the mobile phone 401 on the maintenance manager side via the mobile network 301.
It is connected to the.

The e-mails of the mobile phones 200 and 401
The address (E-Mail Address) is "abc@aaa.bb".
b.ccc.ddd ”and“ def@xxx.yyy.zzz ”. As shown in the figure, instead of the mobile phone 200, the mobile network 301, and the mobile phone 401, respectively, for example, L- Fixed-line telephone 200_1 capable of sending and receiving mail in modes, public network 302, subscriber telephone 411, or PC terminal 2 capable of sending and receiving mail
It is also possible to use 00_2, LAN 304 and Internet 303, and PC421.

In addition, the network configuration of the mobile network 301, the public network 302, the Internet 303, or the like includes a mobile phone 200 connected to the private branch exchange 100, a fixed phone 200_1, or a PC terminal.
Any configuration may be used as long as it is a network capable of sending and receiving emails to and from 200_2.

Furthermore, the mobile telephone 200 and the fixed telephone 200_
1, or the terminal on the maintenance manager side corresponding to the PC terminal 200_2, respectively, is a terminal capable of sending and receiving mail to the mobile phone 200, the fixed phone 200_1, or the PC terminal 200_2 via the network having the above configuration. Any terminal (mobile phone, fixed phone, PC terminal, etc.) may be used as long as it is available. For example, it is possible to combine the mobile phone 200 and the PC terminal 421.

The private branch exchange 100 includes an incoming mail recognition / acquisition unit 110, a command mail selection unit 120, an erroneous input prevention unit 130,
A command execution / notification unit 140, areas 151 to 156 set in a storage unit (not shown), and an exchange control unit 160 that controls the exchange main body that is the subject of maintenance management.

The mobile phone 200 is a conventional mobile phone having a mail function and having an output terminal for outputting a message indicating that a mail has been received and received mail information, and a mail receiving unit 210 for receiving a mail. A mail sending / receiving unit 220 for sending mails, a mail information input / output unit 240 for inputting / outputting mail information and incoming call notification messages to / from the private branch exchange 100 via a serial interface, and interface monitoring / control for monitoring and controlling the output unit 240, etc. Part 23
0, a received mail storage area 250 for storing received mail, and a transmitted mail storage area 260 for storing transmitted mail.

FIG. 3 shows an example of an operation procedure when the maintenance manager remotely controls the exchange control unit 160 of the private branch exchange 100 using the mobile phone 401. When performing remote control of the exchange control unit 160, the maintenance manager sends a command mail 701 including a control command from the mobile phone 401 to the mobile phone 200.

FIG. 4 shows an example of the screen of the mobile phone 401 on the maintenance manager side. The maintenance manager is a mobile phone 401
In addition, for example, "control command =" E200CM
After inputting “D: 101,22 ,,,,,, D”, as shown in (2) of the figure, “address =“ abc@aaa.bb ”of the destination mobile phone 200.
b.ccc.ddd ”” is input.

[E200CMD:] of the control commands is
The following "101,22 ,,,,,, D" indicates a control command, and "101,22 ,,,,,, D" is, for example, a command code for instructing "extension setting data display". , Parameters, and processing (display). FIG. 5 (1) shows that after the above-mentioned “control command” and “address” are input, the mobile phone 401
The command mail 701 transmitted from the mobile phone 200 to the mobile phone 200 is shown. This command mail 701 has a sender address <
def@xxx.yyy.zzz>, destination address <abc@aaa.bbb.ccc.ddd
(See Fig. 4 (2))>, time of transmission (week, year, month, day, and hour, minute, second), ..., and "control command (= process command)"
“E200CMD: 101,22 ,,,,,, D” ”(see FIG. 4 (1)) is included.

Below, the cellular phone 200 sends the command mail 7
The operation procedure after receiving 01 will be described with reference to FIGS. In the mobile phone 200 shown in FIG. 2, the mail receiver 210 stores the received command mail 701 in the received mail storage area 250. Interface monitor / control unit 230
Receives the incoming call notification message 702 including the identifier describing the incoming call type for the private branch exchange 100 from the mail information input / output unit 2
Send via 40 (see FIG. 3).

Steps S10 and S11 in FIG . 3 : Private branch exchange 100
In the mail incoming recognition section 111, the incoming notification message 7
02 is stored in the incoming call notification message storage area 151, and it is recognized from the identifier included in the incoming call notification message 702 whether or not a mail has arrived. Furthermore, the incoming mail recognition unit 111
Ends the incoming mail process if it is not an incoming mail,
When the mail is received, the mobile phone 200 transmits a mail information transfer request signal 703 in the mobile phone to request the transfer of the mail information.

In the mobile phone 200, when the interface monitoring / control unit 230 receives the request signal 703 via the mail information input / output unit 240, the mail information input / output unit 240 receives the mail information in the received mail storage area 250. Control is performed so that 704 (command mail 701) is transmitted to the private branch exchange 100.

Step S12 : In the private branch exchange 100, the incoming mail receiving section 112 receives the mail information 704 and stores this mail information 704 in the mail information storage area 152. FIG. 6 shows the mail information 7 stored in the mail information storage area 152.
An example of 04 is shown. The mail information is composed of mail header information 152a, transmission time 152b, and mail body 152c.

In this example, each of the areas 152_1 to 152_3 of the mail information storage area 152 has a transmission time of 2001.
Wednesday, February 28, 11:24:50 (Wed, 28 Feb 2001 11:
24:50), 11:54:15 on the same day (Wed, 28 Feb 2001 11: 54: 1
5), and 10:24:50 on the same day (Wed, 28 Feb 2001 10: 24: 5
One "general mail" which is 0) and two command mails are stored.

Step S13 : The latest mail selector 121 separates the mail information 704 stored in the mail information storage area 152 from the mail header information, and extracts each mail.
The latest emails are stored in the latest email storage area 153 by comparing the transmission times 152b of the emails. In the example of FIG. 6, the command mail in the area 152_2 is stored in the storage area 153.

Steps S14 and S15 : Command recognition unit 122
Reads the latest mail stored in area 153, detects "E200CMD:" in the body of the mail, judges that this mail is a command mail, and in order the command code "10
Recognize 1 ”, parameter“ 22 ”, and process“ D (display) ”.

That is, it is recognized that the instruction is to display "extension setting data" to the private branch exchange 100. Further, the command recognition unit 122 confirms the content of the command,
If there is an error in the content, the process is terminated, and if there is no error, the process is passed to the erroneous input prevention unit 130 that performs the process of the next step S16.

Step S16 : The erroneous input prevention unit 130 regards a command mail whose difference between the transmission time and the arrival time of the command mail stored in the latest mail storage area 153 is not within the preset valid time as an abnormal command mail. It is determined and stored in the result storage area 155.

Step S17 : The command editing unit 141 edits the normal command mail stored in the latest mail storage area 153 into a control command in a format that can be input to the exchange control unit 160, and stores it in the command editing area 154. Step S18 : The command execution section 142 inputs the control command for “displaying the extension setting data” stored in the command editing area 154 to the exchange control section 160.

Step S19 : The monitoring unit 143 monitors the execution result for the command execution, and the execution result “DN: 22, OPM:
1, TOD: 3 ”is stored in the result storage area 155. Here,
"DN", "OPM", and "TOD" respectively indicate "extension number", "call origination / termination restriction type (1: no restriction)", and "signal format (3: PB)".

Step S20 : The reply mail editing unit 144 edits the reply mail 706 based on the execution result of the exchange stored in the result storage area 155 and the mail header information stored in the latest mail storage area 153, and edits the reply mail 706. 156
To store. FIG. 5B shows the structure of the reply mail 706. This reply mail 706 has a sender address <abc@aaa.bb
b.ccc.ddd> (address of mobile phone 200), destination address <def@xxx.yyy.zzz> (address of mobile phone 401), transmission time “Mon, 12 Mar 2001 1550 30” +0900 (world standard time) , ..., DN: 22, OPM: 1, TOD: 3.

Further, the reply mail editing section 144 edits a message indicating that the abnormal command mail stored in the result storage area 155 is not executed and stores it in the reply mail editing area 156. Step S21 : The reply mail transmission unit 145 transmits the mail transmission request signal 705 including the reply mail stored in the reply mail editing area 156 to the mobile phone 200.

In the mobile phone 200, the interface monitor / control unit 230 sends the received mail transmission request signal 705 to the mail information input / output unit 240 to the transmission mail storage area 2
Control to store in 60. After that, the email sending unit 220
Sends a reply mail 706 in the sent mail storage area 260 to the mail address of the mobile phone 401.

The mobile phone 401 on the maintenance manager side receives the reply mail 706 and displays the contents of the reply mail on the screen. FIG. 4 (3) shows the content of the reply mail displayed on the screen of the mobile phone 401, and “DN: 22, OPM = 1, TOD:
3 ”is displayed. This allows the maintenance manager to check the received mail displayed on the mobile phone 401,
Command email sent (= "extension setting data display")
You can know the execution result of.

Example (2): Target system for maintenance managers, etc.
Notification of Failure of Control Device FIG. 7 shows an embodiment (2) of the remote control device 100 of the present invention. This embodiment (2) is a private branch exchange similar to the embodiment (1).
The case where the 100 is maintained and managed by remote control is shown, but in particular, an example is shown in which the holder is notified of a failure that has occurred in the private branch exchange 100.

That is, by utilizing the fact that the monitoring unit 143 constantly monitors the exchange control unit 160, the failure of the private branch exchange 100 is automatically detected, and the maintenance management is performed from the portable telephone 200 connected to the private branch exchange 100. In this embodiment, the maintenance manager confirms the failure of the exchange by sending an email to the mobile phone 401 of the person concerned.

Private branch exchange 100 and mobile phone of the embodiment (2)
The configuration of 200 is the private branch exchange 100 of the embodiment (1) shown in FIG.
The same as the mobile phone 200, but in FIG. 7, some functional blocks and signals not related to the failure notification are omitted. FIG. 8 shows an example of an operation procedure for notifying that a failure has occurred. The operation procedure of the fault notification will be described below with reference to FIG.

Steps S30 and S31 in FIG . 8 : When a failure occurs in the exchange control unit 160 and the private branch exchange 100 main body in FIG. 7, the monitoring unit 143 detects the failure and stores the detected "failure content" as a result. Write in area 155. Step S32 : The reply mail editing unit 144 displays the result storage area
The failure notification mail including the “contents of failure” written in 155 is edited, and the mail address (not shown) of the maintenance manager registered in advance is searched and set as the destination of the failure notification mail.

Step S33 : The reply mail transmission unit 145 transmits the mail transmission request signal 801 including the failure notification mail 802 to the mobile phone 200. In the mobile phone 200,
The interface monitor / control unit 230 sends a mail transmission request signal 8
Upon receiving 01, the failure information mail 802 is stored in the outgoing mail storage area 260 from the mail information input / output unit 240. The mail sending unit 220 sends the failure notification mail 802 in the sent mail storage area 260 to the mail address of the mobile phone 401 of the maintenance manager.

As a result, the maintenance manager who holds the portable telephone 401 knows that a failure has occurred in the private branch exchange 100, and based on the operation procedure shown in the embodiment (1), the private branch exchange 100.
It becomes possible to perform the maintenance of by remote control. (Supplementary Note 1) An incoming mail receiving unit that takes in an incoming mail to a connected terminal, a command mail selecting unit that selects a command mail that describes a processing command from the incoming mail, and a command mail that is selected A remote control device comprising: a command execution unit that executes the described processing command.

(Supplementary Note 2) In Supplementary Note 1 above, a monitoring unit that monitors the execution result of the processing command and outputs the monitoring result, and a reply mail editing unit that edits a reply mail describing the monitoring result, A remote control device further comprising: a reply mail transmission unit for requesting the terminal to send the reply mail.

(Supplementary Note 3) In Supplementary Note 1 above, the command mail selecting section selects the latest incoming mail from the plurality of received incoming mails, and the latest incoming mail selecting section. And a command recognition unit for recognizing whether or not the processing command described in the command mail is a predetermined correct command.

(Supplementary Note 4) In Supplementary Note 1 above, there is further provided an erroneous input prevention unit which does not accept the input of the command mail in which the difference between the transmission time and the arrival time of the command mail exceeds a preset valid time. Remote control device characterized by having.

(Supplementary Note 5) In Supplementary Note 2, the monitoring unit detects a failure of the target control device, and the reply mail editing unit edits a failure notification mail describing the detected failure,
The remote control device, wherein the reply mail sending unit requests the terminal to send the failure notification mail.

(Supplementary Note 6) The remote control device according to Supplementary Note 1, wherein the incoming mail fetching unit fetches the mail based on an incoming mail notification from the terminal. (Supplementary note 7) The remote control device according to supplementary note 1, wherein the terminal is at least one of a mobile terminal capable of receiving mail, a fixed terminal, and a dedicated terminal.

[0065]

As described above, according to the remote control device of the present invention, the incoming mail fetching unit fetches the incoming mail to the terminal, and the command mail selecting unit selects the target control device from the incoming mails. Since the command mail in which the processing command for control is described is selected and the command execution unit executes the processing command described in the command mail, the owner of the mobile phone sends the command mail to the terminal. By doing so, it becomes possible to remotely control the target control device.

The monitoring unit monitors the execution result of the processing command, the reply mail editing unit edits the reply mail describing the monitoring result, and the reply mail sending unit requests the terminal to send the reply mail. With this configuration, the owner of the mobile phone can know the execution result of the transmitted command mail in real time.

Further, the monitoring unit detects a failure of the target control device, the reply mail editing unit edits a failure notification mail describing the detected failure, and the reply mail sending unit detects the failure notification mail. Since the transmission is requested to the terminal, the maintenance manager who owns the mobile phone 401 can recognize the occurrence of the failure in real time without periodically searching for the incoming mail. By transmitting to the terminal 200 a command mail describing a processing command corresponding to the failure content indicated by the notification mail, the target control device 160
It becomes possible to carry out maintenance and repair.

The terminal may be, for example, a mobile phone capable of receiving mail, a fixed telephone, or a dedicated terminal. Further, it is possible to use a terminal corresponding to the conditions of the operator or the maintenance manager, for example, working conditions. The maintenance manager, for example, by carrying only a mobile phone, that is, without carrying a personal computer for maintenance, is not limited to the position of the maintenance manager,
The failure of the target control device can be known in real time, and maintenance work for the failure can be performed by remote control.

[Brief description of drawings]

FIG. 1 is a block diagram showing the principle of a remote control device according to the present invention.

FIG. 2 is a block diagram showing an embodiment (1) of the remote control device according to the present invention.

FIG. 3 is a flowchart showing an example of a remote control operation procedure in the remote control device according to the present invention.

FIG. 4 is an image diagram of a display screen of a mobile phone or the like on the side of a maintenance manager who sends a mail to the remote control device according to the present invention.

FIG. 5 is a diagram showing an example of an email transmitted and received between the remote control device according to the present invention and a mobile phone or the like on the maintenance manager side.

FIG. 6 is a diagram showing an example of storing mail information in a mail data storage area in the remote control device according to the present invention.

FIG. 7 is a block diagram showing an embodiment (2) of the remote control device according to the present invention.

FIG. 8 is a flowchart showing an example of a fault notification operation procedure in the remote control device according to the present invention.

FIG. 9 is a block diagram showing a control method (1) using a conventional remote control device.

FIG. 10 is a block diagram showing a control method (2) using a conventional remote control device.

[Explanation of symbols] 100, 101 Remote control device, private branch exchange, maintenance target device 110 Mail incoming recognition / acquisition unit 111 Mail incoming recognition unit 112 Incoming mail acquisition unit 120 Command mail selection unit 121 Latest mail selection unit 122 Command recognition Part 130 Erroneous input prevention part 140 Command execution / notification part 141 Command editing part 142 Command execution part 143 Monitoring part 144 Reply mail editing part 145 Reply mail sending part 151 Incoming notification message storage area 152, 152_1 to 152_3 Mail information storage area 152a Mail Header information 152b Transmission time 152c Mail body 153 Latest mail storage area 154 Command editing area 155 Result storage area 156 Reply mail editing area 160 Target control device, exchange control unit 200 Mail sending / receiving terminal, mobile phone 200_1 Fixed phone 200_2 PC (personal computer) 210 E-mail receiving unit 220 E-mail transmitting unit 230 Interface monitoring / control unit 240 E-mail Information input / output unit 250 Received mail storage area 260 Outgoing mail storage area 301 Mobile network 302 Public network 303 Internet 304 LAN 401 Mobile phone 411 Subscriber phone 421 PC 431, 432 Maintenance terminal 441 Firewall 451 Internet server 461 Modem 701 Incoming mail, Command mail 702 Incoming notification message 703 Mail information transfer request signal 704 Mail information 705 Mail transmission request signal 706 Reply mail 801 Mail transmission request signal 802 Failure notification mail In the figure, the same reference numerals indicate the same or corresponding parts.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Atsushi Tsukasa             2-2-1 Hyakudohama, Sawara-ku, Fukuoka, Fukuoka               Fujitsu West Japan Communication System             Thames Co., Ltd. F term (reference) 5K101 KK02 KK11 LL00

Claims (5)

[Claims] 1. An incoming mail receiving unit that takes in an incoming mail to a connected terminal, a command mail selecting unit that selects a command mail that describes a processing command from the incoming mail, and the selected command mail. A remote control device comprising: a command execution unit that executes the processing command described in 1. 2. A monitoring unit for monitoring the execution result of the processing command and outputting the monitoring result, a reply mail editing unit for editing a reply mail describing the monitoring result, and the reply mail according to claim 1. And a reply mail sending unit for requesting the terminal to send the remote control device. 3. The latest mail selecting unit according to claim 1, wherein the command mail selecting unit selects a latest incoming mail from the plurality of received incoming mails, and a command in the latest incoming mail. A remote control device comprising: a command recognition unit that recognizes whether a processing command described in a mail is a predetermined correct command. 4. The erroneous input prevention unit according to claim 1, further comprising: an erroneous input prevention unit that does not accept an input of a command mail in which a difference between a transmission time of the command mail and an arrival time of the command mail exceeds a preset valid time. Remote control device characterized by. 5. The monitoring device according to claim 2, wherein the monitoring unit detects a failure of the target control device, the reply mail editing unit edits a failure notification mail describing the detected failure, and the reply mail sending unit edits the failure notification mail. A remote control device characterized by requesting the terminal to transmit a fault notification mail.