JPH1027043A - Start/stop controller having network function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a start/stop controller having a network function which can extremely easily start and stop of various kinds of electric equipment from a remote place through a network. SOLUTION: A LAN system 1 is composed of a start/stop controller 10 and a main workstation(WS) 20 which works as a server, other WSs 30 and 40, and a printer server 45, etc., which are connected to the controller 10 through a communication line 50 laid in the premises. The controller 10 connects or disconnects the power supply to the main WS 20, WS 30, etc., in response to a command sent from, for example, the WS 40 through the communication line 50 and, at the same time, performs prescribed appurtenant processing (shut down processing, etc.) incidental to the connection or disconnection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a start / stop control device for controlling start / stop of an information processing device such as a personal computer or a workstation, a printer, a copying machine, and other electric devices.

[0002]

2. Description of the Related Art In recent years, a workstation (WS) or a personal computer (PC) has been replaced with a LAN (local area network) instead of a conventional large computer.
2. Description of the Related Art Distributed processing systems that perform necessary tasks by connecting to a network such as a network and a WAN (Wide Area Network) have been widely used. Although the input power specifications of various information processing devices used in such networks are moderate compared to large computers,
If the power supply of the device is cut off due to a power failure, a momentary power failure (short-time power failure) or an erroneous operation, data loss or hardware failure occurs.

For example, UNIX (X / Open Company Ltd.
In a multi-user system using a workstation, such as a system licensed by the U.S. and other countries in the United States and other countries, a write operation to a disk file is completed immediately to reduce the number of read / write operations to the disk. Saves the data on the main memory without actually writing it to the disk, so if the power is turned off during operation, the data on the main memory will be lost,
A system crash occurs. In order to avoid such a situation, a special process for maintaining the system (hereinafter referred to as a shutdown process) is required before turning off the power of the workstation.

[0004] However, since the shutdown process is generally complicated in operation, it must be usually performed by a predetermined system administrator. For this reason, the system administrator needs to be present until all of a plurality of end users in the system have completed their work. In addition, when starting or stopping the system, there is a restriction on the power-on sequence or the power-off sequence between a peripheral device such as a hard disk device and a CPU (central processing unit). It is complicated and not easy.

[0005] Under such circumstances, the system power supply is usually kept energized for 24 hours.
However, it is not preferable to supply power to the machine when the machine is unattended outside office hours, considering the risk of fire, etc., especially in laboratories where fire management is strict. It is.

For example, NetWare (Novell, USA)
In a LAN system using a personal computer as a server, such as a registered trademark of Inc., a network failure may occur if the power of the device is suddenly cut off. (Hereinafter referred to as network shutdown processing). Therefore, even such a system has a problem in operation management related to the above-mentioned start / stop.

By the way, as a system for protecting the system from the above-mentioned power failure or momentary power failure, a so-called UPS (Uninterrupt
A tible power supply (uninterruptible power supply) is known. However, since this UPS backs up the power supply to the target device by a built-in battery when a power failure occurs, for example, when the power failure continues for a long time and exceeds the UPS backup time, Unless necessary measures (shutdown processing, network stop processing, etc.) are taken during the backup, the system crash cannot be avoided after all.

In order to solve the above-mentioned problems, recently, in response to a very simple switch operation or a power failure signal from the UPS, the system performs a shutdown process or the like necessary for stopping the system. A start / stop control device having a function of shutting down a system power supply has appeared.

FIG. 22 shows an example of a system configuration using a conventional start / stop control device. The start / stop control device 210 receives an electric power from a UPS 260 connected to a commercial power supply and outputs an AC voltage to an AC connector P _1.
And to P _4, and a serial port S between connectable to the workstation (WS) 220 through RS232C cable. Here, the AC connectors P _{1 to} P ₄
Includes a WS 220, a display device 221,
The power cords of the hard disk device 222 and the printer 230 are connected, and power is supplied to each device from each of these connectors. The display device 221, the hard disk device 222, and the printer 230 are respectively connected to the WS 220 by signal cables. The WS 220 is connected to a communication path 250 forming a LAN.

The UPS 260 charges a built-in battery (not shown) and supplies power to the start / stop control device 210 when energized, but outputs a power failure signal to the start / stop control device 210 when a power failure occurs, and The power stored in the built-in battery is supplied to the start / stop control device 210. The start / stop control device 210
When a power failure signal from the UPS 260 is received during power supply from the C connectors P _{1 to} P ₄ to the WS 220 or the like, a shutdown request signal is immediately transmitted from the serial port S to the WS 220 via the RS232C cable. In addition, the stop control device 210 sends a shutdown request signal from the serial port S to the WS 220 in response to a stop signal from the manual operation switch 261. Then, after the shutdown processing in the WS 220 ends, the serial port S
The power supply from the AC connectors P _{1 to} P ₄ to the WS 220 and the like is stopped in response to the shutdown processing end signal transmitted to the WS 220.

In a system using such a start / stop control device, a system administrator can very easily execute a complicated shutdown process by using the manual operation switch 261, thereby facilitating operation management of the system. Further, even when the shutdown processing by the system administrator cannot be performed during the backup period of the start / stop control device 260 during the power failure, the shutdown process is automatically performed in response to the power failure signal from the start / stop control device 260. Therefore, a system crash due to a power failure when the system administrator is absent can be prevented.

[0012]

As described above, in the conventional start / stop control device, the system can be easily started by one operation of the manual operation switch 261. It is necessary to move to the place where the start / stop control device 210 is installed and operate the manual operation switch 261. Therefore, for example, the system administrator can control the start / stop control device 210 and WS2
If the user is in a place remote from 20 or the like, it is impossible to start the system immediately. Further, if the start / stop control device 210 is provided on a different floor even in the same premises, the system administrator must move to that floor, and is not troublesome.

[0013] If the system is to be stopped, the WS 22 is transmitted from another workstation via the communication path 240.
0 to send a shutdown command to perform a shutdown process.
If a request to stop power supply is made to the start / stop control device 210 via C, automatic shutdown from a remote location is also possible. However, when the system is started, the WS 220 is not operating in the first place, and thus it is impossible to start by such a remote operation.

Such a request for starting / stopping from a remote place is made by a copying machine or an OH used in a general office environment.
It also exists for OA equipment such as P (overhead projector) and various electronic and electrical equipment such as air conditioners. Before starting the office, many OA equipments are started up remotely and pre-heated to keep them in standby mode.
This is because it is convenient if the inside of a large number of OA devices can be cooled down by a remote operation after the office, and then the power supply can be cut off.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object a network function that makes it possible to start and stop various electrical devices extremely easily by remote operation via a network. An object of the present invention is to provide a start / stop control device.

[0016]

According to a first aspect of the present invention, there is provided a start / stop control device having a network function, comprising: a communication path connecting means for connecting a data communication path as a component of a local area network; Power supply control means for turning on or off the power of a predetermined electric device in response to a command sent through the communication path connection means; And additional processing means for performing predetermined additional processing. In this device, power on / off control of electric equipment can be remotely performed via a network, and additional processing required at the time of power on / off is also performed.

According to a second aspect of the present invention, there is provided a start / stop control device having a network function, wherein the electrical device is an information processing device connected to a data communication path. Is configured so that the additional processing means performs a predetermined pre-stop processing required before the information processing apparatus is stopped or a predetermined post-start processing required after the information processing apparatus is started via the data communication path. . With this device, the power on / off control of the information processing device can be remotely performed via a network,
Additional processing required when the power is turned on and off is also performed.

According to a third aspect of the present invention, there is provided a start / stop control device having a network function, wherein the auxiliary processing means comprises:
When the information processing device is stopped, the information processing device requests the information processing device to execute a predetermined termination process that must be performed before the power of the information processing device is turned off. Thus, the power supply to the information processing apparatus is stopped.

According to a fourth aspect of the present invention, there is provided a start / stop control device having a network function, the first / second control device having a network function further storing a set start time or stop time. The power supply control means and the auxiliary processing means are configured to operate in response to a command from the schedule management means. In this device, L
In addition to starting and stopping by remote control via the AN, a scheduled operation of automatically starting or stopping at a preset start time and stop time is performed.

According to a fifth aspect of the present invention, there is provided a start / stop control device having a network function, wherein the start / stop control device has a network function and further receives an external analog signal or digital signal. The power supply control means and the auxiliary processing means are configured to operate in response to an analog signal or a digital signal received by the reception means. In this apparatus, in addition to start / stop by remote control via a LAN, start / stop control is performed in response to a received analog signal or digital signal.

According to a sixth aspect of the present invention, the digital signal received by the receiving means is transmitted from a manually operable start / stop switch. Is a start signal or a stop signal. In this apparatus, start / stop is performed by manual operation of a start / stop switch in addition to start / stop by remote control via a LAN.

According to a seventh aspect of the present invention, there is provided a start / stop control device having a network function, wherein the digital signal received by the receiving means backs up a power supply of the electric equipment at the time of a power failure. This is configured to be a power failure signal from the uninterruptible power supply. In this apparatus, in addition to the stop by remote control via the LAN, the stop control is also performed by a power failure signal output from the uninterruptible power supply at the time of power failure.

According to an eighth aspect of the invention, there is provided a start / stop control device having a network function, wherein the analog signal or the digital signal received by the receiving means is in response to an external event. It is configured to be a state detection signal to be generated. In this device, in addition to start / stop by remote control via a LAN, a state detection signal (sensor) generated in response to an external event (for example, a temperature change, vibration, approach of a person, or an operation state of an electric device). Signal, control signal, etc.)
Also performs start / stop control.

According to a ninth aspect of the present invention, there is provided a start / stop control device having a network function, wherein the start / stop control device has a network function according to the first or second aspect. And a power control unit and an additional processing unit configured to operate in response to a command sent from another device via the non-network communication unit. . In this apparatus, in addition to start / stop by remote control via a LAN, start / stop control is also performed based on a command sent via a communication means outside the network (such as a modem or a public line). That is, remote start / stop control from outside the own network is also possible.

According to a tenth aspect of the present invention, there is provided a start / stop control device having a network function.
Further, an external network connection means for connecting to another device not included in the own network, and bidirectional communication data exchanged between the own network and another device via the external network connection means. And a protocol conversion means for performing protocol conversion so that another device can directly access a device in its own network. With this device, a so-called gateway function (bidirectional protocol conversion function) allows through-access from a device outside the own network to any device in the own network via a public line or the like and a start / stop controller. Become.

[0026] A start / stop control device having a network function according to claim 11 is the start / stop control device having a network function according to claim 2, further comprising backup communication means for connecting to an information processing device, The additional processing means is configured to be able to execute the pre-stop processing or the post-startup processing by the backup communication means. In this apparatus, ancillary processing (pre-stop processing or post-startup processing) is performed using backup communication means provided separately from a communication path (data communication path) on the LAN.

According to a twelfth aspect of the present invention, there is provided a start / stop control device having a network function.
The additional processing means has a function of notifying that the power of the electric device has been turned on or off by the power control means. In this device, the fact that the start or stop has been performed is reported to the relevant department.

According to a thirteenth aspect of the present invention, there is provided a start / stop control device having a network function.
The power supply control means is configured to turn on or off the power of each electric device with a predetermined order and a time difference. In this device, each electric device is started or stopped in a predetermined order with a predetermined time difference.

According to a fourteenth aspect of the present invention, there is provided a start / stop control device having a network function.
Further, a line concentrator function unit for a communication path (data communication path) on the LAN is provided. This device is a concentrator (H
Since it also functions as a UB), it is possible to construct a network by connecting another information processing device or the like to this start / stop control device.

According to a fifteenth aspect of the present invention, there is provided a start / stop control device having a network function, wherein the start / stop control device has a network function. In addition, a manual power control means capable of manually turning on or off the power of the electric device is also provided. In this device, in addition to automatic start / stop, manual start / stop is also possible.

[0031]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a schematic configuration of a LAN system constructed using a start / stop control device according to an embodiment of the present invention. The LAN system 1 includes a start / stop controller 10, a main WS 20 as a server, other workstations WS30 and WS40, a printer server 45, and the like, which are interconnected by a communication path 50 laid in the premises. . Among them, the start / stop control device 10, the main WS 20 and the WS 30 are arranged on the second floor, for example, and the WS 40 and the printer server 45 are arranged on the third floor, for example.

The main WS 20 includes an HD (hard disk device) 21 and a DSP (display device) 22.
The WS 30 includes the HD device 31 and the DSP 32, and the WS4
The DSP 41 is connected to 0 by a dedicated signal cable. Of these, each peripheral device group (H
D21, DSP22, HD31, and DSP 41) of the AC connector P ₁ of the cord start stop control apparatus 10
Is connected to a to P ₄ has become therefrom to receive a power supply, also, AC power cord start stop control apparatus 10 of the CPU body group (main WS20 and WS30)
It is connected to connectors C ₁ and C ₂ and receives power supply therefrom.

The start / stop controller 10 includes AC connectors P _{1 to} P ₄ , C ₁ , C ₂ for receiving an electric power from the UPS 60 connected to a commercial power supply and outputting an AC voltage;
2C, serial ports S ₁ and S ₂ , digital output port D _O , and digital input port D
_I , analog input ports A ₁ and A ₂ , a power failure signal port PD for receiving a power failure signal 67 from the UPS 60, and a manual signal port SW for receiving a start signal or a stop signal from the manual operation switch 61. I have.

Here, the AC connectors P _{1 to} P ₄ are power connectors dedicated to peripheral devices as described above, and the AC connectors C ₁ and C ₂ are power connectors dedicated to the CPU body (workstation). One of the serial ports S
₂ is connected to a serial port (not shown) of the main WS 20.

The start / stop controller 10 further has a so-called HUB (line concentrator) function, and includes modular connectors M ₁ and M ₂ that support this HUB function. For example, the other WSs 35 and 36 are connected to the modular connector M.
By connecting to _1, M _2, these WS35,3
6 can be connected to the communication path 50.

The UPS 60 charges a built-in battery (not shown) and supplies power to the start / stop controller 10 when energized, but outputs a power failure signal 67 to the start / stop controller 10 when a power failure occurs. At the same time, the power stored in the built-in battery is supplied to the start / stop control device 10.

The start / stop control device 10 includes a WS 40 on the third floor.
In response to a start request or a stop request (shutdown request) sent from the LAN through the LAN (via the communication path 50), power is supplied to or cut off from the main WS 20, and necessary processing (power supply) A shutdown request to the main WS 20 before the shutdown is performed. In the following description, “via LAN” means performing communication via the communication path 50.

The start / stop control device 10 also receives a power failure signal 67 from the UPS 60 during power supply to the WS 20 and the like.
If you receive the main WS2 via LAN
A shutdown request is made to 0. In addition, the start / stop control device 10 includes a manual operation switch 61.
Signals from various sensors (temperature sensor, humidity sensor, vibration sensor, human body proximity sensor, etc.) input to the analog input ports A ₁ and A ₂ , and a digital input port. also in response to the digital signal input to the D _I ( "0" or "1"), performs power supply or power cut-off to the main WS20 like, processing required incidental thereto (the power-off before the main WS20 Shutdown request processing)
It is supposed to do. The power supply or power supply to the main WS 20 and the like is performed in a predetermined order.

The start / stop controller 10 further has a schedule operation function for automatically starting and stopping the system every day according to a preset schedule. Even when the system is stopped (power cut-off) by this schedule operation function, it is needless to say that necessary supplementary processing (processing for requesting shutdown to the main WS 20 before power-off, etc.) is performed.

In the present embodiment, the start-stop controller 10 and the main WS 20 are connected by an RS232C cable as a backup communication path. Thus, even if any failure occurs in the communication path 50, by using the backup communication path, it is possible to perform the necessary processing accompanying the above-described power supply or power cutoff (the processing to the main WS 20 before the power cutoff is performed). Shutdown request processing, etc.).

FIG. 2 shows the internal configuration of the start / stop control device 10. As shown in FIG. 1, a start / stop control device 10 includes a CPU 11 that controls the operation of the entire device.
Controller (LAN CTL.) 12 as a communication interface for connecting the
And ROM for storing a program that governs the operation of the device
(Read only memory) 13, RAM (random access memory) 14 as a work memory, non-volatile memory 15 for storing various parameters related to the operation of the apparatus, and interfaces for various input / output signals And a schedule timer 17 having a built-in calendar clock. These are interconnected by an internal bus 9.

The start / stop control device 10 also has one end
Noise filter 1 connected to the power supply line from S60
9 is provided. The other end of the noise filter 19
AC connector P ₁ for the peripheral device via the relay contact R _P
Is connected to to P _4, it is adapted to be connected to the AC connector C _1, C ₂ for the computer via the relay contact R _C. The relay contacts R _P and R _C are respectively connected to the input / output controller 1 according to an instruction from the CPU 11.
6 are controlled to open and close with a predetermined time difference from each other by the relay drive signals R ₁ and R ₂ output from the switch 6. The relay contacts R _P and R _C can be replaced with semiconductor switches. Start / stop control device 10
The apparatus further includes bypass switches SW _P and SW _C arranged in parallel with the relay contacts R _P and R _C , respectively, and can be manually opened and closed as required. further,
The start / stop controller 10 includes modular connectors M ₁ , M ₂
H that performs waveform shaping, amplification, and the like of LAN signals transmitted and received between the WSs 35 and 36 (FIG. 1) connected to the
The UB function unit 18 is provided.

The input / output controller 16 includes, in addition to a port for outputting relay drive signals R ₁ and R ₂ , serial ports S ₁ and S ₂ for transmitting and receiving serial input / output signals supporting RS232C, and a digital port for outputting a digital signal. an output port D _O, and the digital input port D _I for receiving a digital signal, an analog input port a _1, a ₂ for receiving an analog signal from an external sensor or the like, UP
Power failure signal port P receiving power failure signal 67 from S60
D, and a manual signal port SW for receiving a start signal or a stop signal from the manual operation switch 61.

FIG. 3 shows, among the parameters stored in the non-volatile memory 15, information relating to user identification. For example, "shutdown" is used as the user name, "abcd" is used as the password, and "1" is used as the IP address.
23.45.67.89 "is registered. here,
For an IP (Internet Protocol) address, a protocol used in this LAN system is, for example, TCP / IP (Transm.
This is an address on the LAN that is usually used in the case of ission control protocol (Internet protocol).

FIG. 4 shows information relating to serial communication and power supply among the parameters stored in the nonvolatile memory 15. Here, the serial ports S ₁ ,
The baud rates of S ₂ are “9600 BPS” and “4
800 BPS ”and the power supply stop waiting time is“ 5
Minutes, the power recovery waiting time at the time of power failure is set to "10 minutes", the power supply time difference is set to "15 seconds", and the power supply state after power recovery is set to "re-power supply".

Here, the power supply suspension waiting time is a time period when the shutdown processing is executed in the main WS 20 in response to the shutdown request from the start / stop controller 10 to the main WS 20, and a confirmation notice of the shutdown execution from the main WS 20 is issued. It represents the time from when the start / stop control device 10 receives the power to when the power supply to the AC connectors P _{1 to} P ₄ , C ₁ , and C ₂ is cut off. The power recovery waiting time at the time of a power failure represents the time from the occurrence of the power failure to the time of the extinction of the power failure, and in practice, the battery backup time by the UPS 60 is set. The power supply time difference is defined as the AC connector P
AC connector C ₁ from a power supply start to ₁ ~P _4, C ₂
And the time difference between the output timings of the relay drive signals R ₁ and R ₂ . The power supply state after power recovery refers to a case where a power failure occurs and the power of the main WS 20 or the like is cut off after the shutdown processing by the battery backup from the UPS 60, and then when the power recovery (the power failure is resolved) is performed again, the main WS 20
And so on, to indicate whether or not to supply power. These parameters can be set by a setting switch (not shown) provided on the side surface of the start / stop control device 10, and can be set via the LAN from the main WS 20 or other WSs 30, 40 at any time.

FIG. 5 shows an operation management table used for performing the scheduled operation among the parameters stored in the non-volatile memory 15, and the start time and the stop time are set for each day of the week. . CPU11
In FIG. 2, control necessary for starting or stopping the main WS 20 or the like is performed according to the operation management table in FIG. 5 based on the day and time information obtained from the schedule timer 17.

FIG. 6 shows a format of a data packet flowing on the communication path 50. As shown in this figure, each data packet uses a destination address indicating the IP address of the destination node, a source address indicating the IP address of the source, and one LAN interface simultaneously in a plurality of higher-level protocols. If a bit error occurs in the data, the type that is the information used for distribution to the upper layer when possible, the data that is the content of the information to be actually transmitted such as commands and various messages, etc. And a frame check sequence for checking whether or not the frame has been checked.

Next, the operation of the start / stop control device 10 in the LAN system 1 configured as described above will be described with reference to FIGS.

FIG. 7 shows the operation in the case where the activation of the main WS 20 and the like is controlled from the WS 40 on the third floor via the LAN. As shown in this figure, when a start request command is transmitted from the WS 40 to the start / stop controller 10 using a data packet of the format shown in FIG. 6 (step S701), the data packet passes through the communication path 50. And reaches the start / stop control device 10 and is taken in by the CPU 11 (step S702).

The CPU 11 analyzes the data content of the fetched data packet, and when confirming that this is a system start request, transmits a start request acceptance confirmation message to the WS 40 via the communication path 50 (step S70).
3). The WS 40 receives the activation request acceptance confirmation message from the activation suspension control device 10, and confirms that the activation request has been accepted (Step S704).

Next, the CPU 11 of the start / stop controller 10
Is a relay drive signal R via the input / output controller 16.
_1, and outputs the R ₂ relay contact R _P, performs power-on control to close the R _C (step S705), power supply from AC connector P ₁ to P ₄ and AC connectors C _1, C ₂ to the main WS20 etc. Is started (step S706).
As a result, the power of the main WS 20, the WS 30, and the like is turned on, and the system is started (step S707). At this time, the output timing of the relay drive signals R ₁ and R ₂ has a predetermined time difference (the power supply time difference in FIG.
Second), the power supply to the peripheral device group is started, and after these devices are in a stable state, the main WS
Power supply to the WS 20 and the WS 30 is started.
By performing power supply control with such a time difference,
A more reliable system startup becomes possible.

After starting the power supply to the main WS 20 and the like, the start / stop control device 10 notifies the fact via the communication path 50 (step S708). WS40
Confirms the completion of the system startup by the notification (step S709). In addition, the notification of the system startup is sent to WS
The operation may be performed not only on the 40 but also on another work station (not shown) connected to the communication path 50 and already operating. The notification in that case may be made via a dedicated line such as a serial communication path provided separately, instead of via the LAN. Further, the notification may be made to the entire premises by a method using a sound such as a buzzer or a visual method such as lighting a lamp. Also,
It is also possible to notify a specific person using a pager.

In this way, the system administrator on the third floor can start the system even if no one on the second floor can perform the start operation by the manual operation switch 61 for the start / stop controller 10. It is not necessary to extend the feet to the second floor, and the starting operation can be performed while staying on the third floor, so that the trouble of moving can be saved.
In addition, since the notification at the time of activation is performed, the fact that the system has been activated can be thoroughly known to the related places or the entire premises, and the concerned persons can be alerted. In the present embodiment, the remote activation is performed from the WS 40 on the third floor. However, the present invention is not limited to this.
Other workstations on other floors (not shown) as long as they are operable workstations connected to the communication path 50
Of course, it is possible to remotely start from.

FIG. 8 shows an operation when the stop control of the main WS 20 and the like is performed from the WS 40 on the third floor via the LAN. As shown in this figure, first, when a shutdown request command is sent from the WS 40 to the start / stop control device 10 (step S801), this command reaches the start / stop control device 10 via the communication path 50.

When the CPU 11 of the start / stop control device 10 receives the shutdown request command (step S8)
02), a shutdown request acceptance confirmation message is transmitted to the WS 40 via the communication path 50 (step S80).
3). The WS 40 receives the shutdown request acceptance confirmation message from the start / stop control device 10, and confirms that the shutdown request has been accepted (step S8).
04).

Next, the CPU 11 of the start / stop control device 10
Starts the following shutdown sequence (step S805). First, for the main WS20,
A shutdown request is made via the LAN (step S8)
06). When the main WS 20 receives the shutdown request from the start / stop control device 10 (step S80)
7), a shutdown request acceptance confirmation message is transmitted to the activation suspension control device 10 (step S80).
8). The startup stop control device 10 receives the shutdown request acceptance confirmation message from the main WS 20, and confirms that the shutdown request has been accepted (step S809).

Next, the main WS 20 executes an actual shutdown process (step S810). This shutdown process depends on the system,
Before stopping (operating system)
S20 is an essential supplementary process that must be executed, and its specific content is, for example, as shown in FIG.
As shown in this figure, the main WS 20 first creates a log as a system operation record (step S901 in FIG. 9), and then instructs all workstations on the LAN system 1 to stop the system. The notification is made (step S902). Next, after performing a stop process of the user process (the application program being executed by the user) (step S903), the start-stop control device 10
, A shutdown process execution confirmation message is transmitted (step S904). Further, predetermined stop processing required on the system side (OS side) is executed (step S905).

Upon receiving the shutdown process execution confirmation message from the main WS 20 (step S904 in FIG. 9), the start / stop controller 10 confirms that the shutdown process described above has been executed (step S811 in FIG. 8). Then, after a predetermined time (power supply stop waiting time in FIG. 4 = 5 minutes in this case) elapses (step S81).
3), a process for stopping power supply to the main WS 20 and the like is performed (step S814). Specifically, first, relay drive signals R ₁ , R ₂
Open the relay contacts R _P and R _C by the AC connector P
₁ to P ₄ and AC connectors C _1, the main WS from C ₂
The power supply to 20 and the like is stopped (step S814). As a result, the power of the main WS 20, WS 30, etc. is turned off (step S815), and the system stops.

In this case, similarly to the case of the power supply start (FIG. 7), a time difference is provided between the output timings of the relay drive signals R ₁ and R ₂ to stop the power supply to the peripheral device group and the computer main body group. May be shifted. For example, the power supply to the main WS 20 and the WS 30 may be stopped, and then the power supply to the peripheral device group (such as the HD 21) may be stopped. Thereby, a more reliable shutdown process can be performed. This can be achieved by adding a parameter called a power supply stop time difference to the parameters shown in FIG.

After stopping the power supply to the main WS 20 and the like, the start-stop controller 10 notifies the power supply stop via the communication path 50 (step S816). Upon receiving this, the WS 40 confirms that the system has been stopped and the device itself can be turned off (step S8).
17).

In this manner, even when the system is stopped, the system administrator on the third floor does not need to extend his feet to the second floor, and the troublesome shutdown processing can be performed extremely easily while staying on the third floor. it can. Of course, any operable workstation connected to the communication path 50 can be remotely stopped from another workstation (not shown) on another floor.

FIG. 10 shows the operation when the start control of the main WS 20 and the like is performed by the schedule operation function, various sensor signals from the outside, or the like, or in response to the operation of the manual operation switch 61.

As shown in this figure, when the time obtained from the schedule timer 17 has become equal to the predetermined start time (see FIG. 5) (step S1001; Y),
The predetermined level of the sensor signal to the analog input port A _1, A ₂ is input (step S1002), the predetermined digital signal is input to the digital input port D _I (step S1003), or by manual operation switch 61 The start signal is input (step S
1004) is satisfied (step S1005), the CPU 1 of the start / stop control device 10
1 performs power-on control to close the relay contacts R _P and R _C by outputting the relay drive signals R ₁ and R ₂ with a predetermined time difference via the input / output controller 16 (step S1006), and to the main WS 20 and the like. Is started (step S1007). Thereby, the main WS2
0, the power of the WS 30, etc. is turned on, and the system is started (step S1008). Then, after starting the power supply to the main WS 20 and the like, the start / stop control device 10 reports the fact to the related workstations via the communication path 50 (step S1009). The processing from the power-on control to the start notification is the same as the processing from steps S705 to S708 in FIG. Also, for the notification in that case, as described in FIG. 7, a dedicated line such as a serial communication path provided separately without using the LAN may be used, and further, a sound such as a buzzer may be used. It may be a method, a visual method such as lamp lighting, or a method using a pager.

In this manner, automatic start-up by the schedule operation function and automatic start-up by detection signals from the temperature sensor, humidity sensor, vibration sensor, human body approach sensor, and the like, and digital signal from other electric equipment can be performed. It is also possible to perform automatic startup in conjunction with the electric device by input or startup by manual operation of a system administrator or the like.

FIG. 11 shows the operation when the stop control of the main WS 20 or the like is performed by the schedule operation function, various sensor signals from the outside, or the like, or in response to the operation of the manual operation switch 61.

As shown in this figure, when the time obtained from the schedule timer 17 has become equal to the predetermined stop time (see FIG. 5) (step S1101; Y),
The predetermined level of the sensor signal to the analog input port A _1, A ₂ is input (step S1102), the predetermined digital signal is input to the digital input port D _I (step S1103), the power failure signal from UPS60 If any one of the input (S1104) and the stop signal input by the manual operation switch 61 (Step S1105) is satisfied (Step S1106), the C of the start / stop control device 10 is controlled.
The PU 11 recognizes that the conditions for the shutdown processing are satisfied (Step S1107), and performs Steps S1109 to S1109.
The shutdown sequence shown in 1118 is started (step S1108). This shutdown sequence is the same as the contents shown in steps S806 to S815 in FIG. 8, and thus the description is omitted here. The content of the shutdown process executed on the main WS 20 side is the same as that shown in FIG.

After stopping the power supply to the main WS 20 and the like in step S1117, the start-stop controller 10 notifies the power supply stop via the communication path 50 (step S1119). About report in that case,
As described with reference to FIG. 7, a method using a dedicated line such as a serial communication path provided separately without using a LAN, a method using sound such as a buzzer, a visual method such as turning on a lamp, or a method using a pager May be.

As described above, in addition to the automatic stop by the schedule operation function, the automatic stop by the detection signal from the temperature sensor, the humidity sensor, the vibration sensor, the human body approaching sensor, and the like, and the automatic stop by the digital signal input from other electric equipment. Automatic stop in conjunction with electric equipment becomes possible. In addition, at the time of power failure, automatic stop is possible in response to a power failure signal from UPS 60 while the battery is backed up by UPS 60. System security.
In addition, a manual stop by a system administrator or the like can be performed by a very simple operation, and the operation management of the system becomes easy.

When the power is automatically stopped in response to the power failure signal and the power failure is resolved after that, the power is restarted according to the contents of the power supply state after power recovery (FIG. 4) set in the nonvolatile memory 115. Alternatively, either the hold state is selected. In the example of FIG. 4, the power supply state after power recovery is “re-power supply”.
Is set to, the restart is performed automatically after the blackout.

Next, another embodiment of the present invention will be described.

FIG. 12 shows an example of a configuration in which the LAN system 1 is started or stopped from a remote LAN workstation via a public line from another LAN workstation. In this example, a modem (modulator / demodulator) 62 is connected to one of the serial ports S ₁ of the start / stop controller 10 so as to be connectable to a public line 65. On the other hand, the modem 72 is also connected to the WS 71 connected to the other LAN system 2 so that the WS 71 can be connected to the public line 65. The LAN system 2
Is configured by connecting a WS 73 and a printer server 74 by a communication path 70 in addition to the WS 71.
A protocol different from the communication protocol on the AN system 1 may be used. Other configurations are the same as those in FIG.

Next, in the above configuration, another L
The operation when starting or stopping the LAN system 1 from the WS 71 of the AN system 2 via the public line 65 will be described.

FIG. 13 shows the operation when the system is started using the public line 65. As shown in this figure, first, when the WS 71 of the LAN system 2 sends a start request command to the start / stop controller 10 via the modem 72, the public line 65, and the modem 62 in a format based on RS232C ( Step S130
1), this command reaches the start / stop controller 10,
Captured by the CPU 11 (step S130)
2).

When the CPU 11 analyzes the content of the received command and confirms that it is a system startup request, it transmits a startup request acceptance confirmation message to the WS 71 via the modem 62, the public line 65, and the modem 72 ( Step S1303). The WS 71 receives the activation request acceptance confirmation message from the activation suspension control device 10,
Confirm that the activation request has been accepted (step S
1304).

Next, the CPU 11 of the start / stop control device 10
Performs power-on control in the same sequence as step S705 in FIG. 7 (step S1304). This allows
Power supply to the main WS 20 and the like is started (step S13).
05), the system starts (step S1306).

After the power supply to the main WS 20 and the like is started, the start / stop controller 10 sets the modem 62 and the public line 6
5 and notifies the WS 71 of the start of power supply via the modem 72 (step S1307). The WS 71 confirms the completion of the system startup based on the notification (step S1).
308). It should be noted that the notification of the system startup is sent not only to the WS 71 but also to another workstation (for example, W) connected to the communication path 50 in the LAN system 1 and already operating.
S40) may be performed. The notification method may be a method using a dedicated line such as a serial communication path, a method using a sound such as a buzzer, a visual method such as turning on a lamp, or a method using a pager instead of via a LAN.

FIG. 14 shows the operation when the system is stopped using the public line 65. The basic processing flow in this case is the same as that in FIG. That is, first, when a shutdown request command is transmitted from the WS 71 of the LAN system 2 to the start-stop controller 10 via the modem 72, the public line 65, and the modem 62 in a format based on RS232C (step S1401 in FIG. 14). This command reaches the start / stop control device 10 and is captured by the CPU 11 (step S1).
402).

When the CPU 11 of the start / stop control device 10 receives the shutdown request command (step S1)
402), modem 62, public line 65 and modem 72
A shutdown request acceptance confirmation message via W
It transmits to S71 (step S1403). The WS 71 receives the shutdown request acceptance confirmation message from the activation suspension control device 10, and confirms that the shutdown request has been accepted (step S1404).

Next, the CPU 11 of the start / stop control device 10
Is the procedure shown in steps S1406 to S1415,
A shutdown sequence is started via the LAN (step S1405). Since the contents of this shutdown sequence are the same as the contents of steps S806 to S815 in FIG. 8, the description is omitted here.

After stopping the power supply to the main WS 20 and the like, the start / stop controller 10 sets the modem 62 and the public line 6
5 and the modem 72 are notified of power supply stop (step S1416). Upon receiving this, the WS 71 confirms that the system has been stopped (step S1417).

As described above, according to the present embodiment, the system administrator at the remote location can use the LAN system 1
Even if there is no person who can perform the start / stop operation of the start / stop control device 10 by the manual operation switch 61 in the premises where the system is constructed, it is necessary to come from a remote place to start / stop the system. And start / stop operation is possible from a remote location. In addition, by notifying the start or the stop at the place other than the WS 71, the fact of the start or the stop can be thoroughly known to the related places or the whole premises.

In the present embodiment, after the remote start from the WS 71 of the other LAN system 2 as described above, the data access service is further executed from the WS 71 to the main WS 20 and the like in the LAN system 1. When trying to do so, as shown in FIG.
A modem 63 is also connected to the main WS 20 via the modem 72, the public line 65, and the modem 63.

FIG. 15 shows another configuration example in which the LAN system 1 is started or stopped from a workstation on another LAN located at a remote place via a public line. In this example, the modem 62 is connected to _one serial port S ₁ of the start / stop controller 10 and the public line 65 is connected.
On the other hand, the modem 72 is also connected to the WS 71 connected to the other LAN system 2 to enable connection to the public line 65. Further, an R-link as a backup communication path is provided between another serial port S _{2 of} the start / stop controller 10 and a serial port (not shown) of the main WS 20.
Connected by S232C cable. Other configurations are the same as those in FIG.

Next, in the above configuration, another L
The operation when starting or stopping the LAN system 1 from the WS 71 of the AN system 2 via the public line 65 will be described.

When the system such as the main WS 20 is activated, the procedure is the same as that shown in FIG. On the other hand, when the system such as the main WS 20 is stopped, it is performed according to the procedure shown in FIG.
In FIG. 14, the shutdown sequence between the start-stop controller 10 and the main WS 20 is performed via the LAN, whereas in FIG. 16, the shutdown sequence is performed via the RS232C as a backup communication path. Since the other flows are the same, duplicate description will be avoided here. However, in the present embodiment, even if a failure occurs in the communication path 50 and a shutdown sequence via the LAN becomes impossible, for example, The same processing can be performed by the backup communication path. Therefore, ensure sufficient system security,
Reliability can be further improved.

In the configuration shown in FIG. 15, a so-called gateway function may be added to the start / stop control device 10. In this case, for example, as shown in FIG.
2. Data access to the main WS 20 is possible via the public line 65 and the modem 62, and further through the start / stop controller 10 via the LAN (communication path 50). In this case, the start / stop control device 10
It executes a gateway function for converting the 2C protocol into a LAN protocol (such as TCP / IP) on the LAN system 1 or, on the contrary, automatically converting the LAN protocol on the LAN system 1 into the RS232C protocol.

In the case of the above-described embodiment (FIG. 12), after the system is started by the start / stop control device 10 via the modem 62, the main WS 20 is switched to another modem 63, and then switched to the main WS 20. Although it was necessary to access data, if the start / stop controller 10 is provided with a gateway function, the main WS 20 can be directly accessed via the LAN through the start / stop controller 10. The required modem 63 is not required, which is advantageous in terms of system cost.

Next, another embodiment of the present invention will be described.

FIG. 18 shows a main part of a LAN system constructed by using a start / stop control device according to another embodiment of the present invention. This LAN system includes a communication path 150 laid on the premises, a personal computer (PC) 120 connected to the communication path 150 via a concentrator (HUB) 121, and a communication path 15 via a HUB 131.
0, the start / stop control device 110, the PC 132,
And a network server PC 133 and the like.

The start / stop control device 110 is provided with an AC connector P capable of receiving an electric power supply from a commercial power supply and outputting an AC voltage.
And ₁ to P _7, 8-channel digital input port D of
_I , an 8-channel digital output port D _O, and a serial port S. Of the AC connectors, P
_1, the P _2, PC 132 in response to each power cord server PC133 is connected, in correspondence with each of the P _3, P _4, the power cord of the other PC138,139 are connected . Also, P ₅ , P ₆ , P ₇
Correspond to the printer 135 and the copier 1 respectively.
36 and the electric heater 140 are connected respectively. Each of these PCs and electric devices receives power from the AC connectors P _{1 to} P ₇ of the start / stop control device 110 and operates.

The start / stop controller 110 further has a so-called HUB function, and includes modular connectors M ₁ and M ₂ that support the HUB function. Here, the PC 138P139 which receives power supply from the start / stop controller 110 is connected to the modular connectors M ₁ and M _2.
Through the communication path 150.

The start / stop control device 10 is connected to a PC on the LAN.
120 Depending on via LAN (via communication path 150) sent come start request or stop request from, performs feeding start or stop power supply for AC connector P ₁ to P _7, necessary incidental thereto processing and performs by using the digital output port D _O a. Here, the necessary processing accompanying the start or stop of power supply is, for example,
This is to perform processing for causing the server PC 133 to perform network shutdown processing, processing for providing a time difference between the operation of the heater circuit and the cooling fan in the electric heater 140, and the like. In the present embodiment,
“Via LAN” means that communication is performed via the communication path 150.

FIG. 19 shows the internal configuration of the start / stop control device 110. As shown in this figure, the start / stop control device 110 has a CPU that controls the operation of the entire device.
A LAN controller 112 as a communication interface connecting the communication path 111 and the communication path 150, a ROM 113 for storing a program for controlling the operation of the device, a RAM 114 as a work memory, and various parameters related to the operation of the device. A nonvolatile memory 115 for storing;
An input / output controller 116 that interfaces various input / output signals is provided. These are the internal bus 109
Interconnected by

The start / stop control device 110 also includes a noise filter 19 having one end connected to a commercial power supply.
The other end of the noise filter 119 is connected to a relay contact R _1.
Are connected to AC connectors P _{1 to} P ₄ through
AC connectors P ₅ , P ₆ , P ₇ via relay contact R ₂
Is to be connected to. Relay contact R _1, R ₂
Are controlled by a relay drive signal R output from the input / output controller 116 in accordance with an instruction from the CPU 111. Note that the relay contacts R ₁ , R
₂ can be replaced with a semiconductor switch. The start / stop controller 110 also includes bypass switches SW ₁ , S arranged in parallel with the relay contacts R ₁ , R ₂ , respectively.
Comprising a W _2, which enables the opening and closing operation by manually if necessary. Further, the start / stop control device 110 controls the PCs 138 and 13 connected to the modular connectors M ₁ and M _2.
9 (FIG. 18) and the LAN exchanged between the communication path 150
A HUB function unit 118 for shaping or amplifying a signal waveform is provided.

The input / output controller 116 has a serial port S supporting RS232C and a digital output port D capable of outputting digital signals of eight channels (D _{O1 to} D _O8 ), in addition to the port for outputting the relay drive signal R.
And _O, and an digital input port D _I capable of receiving a digital signal D _I1 to D _I8) of 8 channels.

Next, the operation of the start / stop control device 110 having the above configuration will be described.

FIG. 20 is a diagram showing LA from PC 120 on the LAN.
This represents an operation when controlling the start / stop control device 110 via N. First, processing at the time of startup will be described. P
When a start request command is sent from the C 120 to the start / stop control device 110 (step S2001), the command is transmitted via the communication path 150 to the start / stop control device 11
0 (step S200).
2).

The CPU 111 analyzes the content of the received command and confirms that the command is a system start request, and transmits a start request acceptance confirmation message to the PC 120 via the communication path 150. PC 120 receiving this
Confirms that the activation request has been accepted.

Next, the CPU 1 of the start / stop control device 110
11 performs power-on control to output a relay drive signal R via the input / output controller 116 to close the relay contacts R ₁ and R ₂ (step S2003), and start power supply from the AC connectors P _{1 to} P _7. (Step S200
4). Thereby, the power of the server PC 133, the PC 138, the printer 135, and the like is turned on (step S200).
5), the network server function of the server PC 133 is also activated.

After the power supply to the server PC 133 and the like is started, the start / stop control device 110 reports the fact via the LAN (step S2006). The PC 120 confirms the completion of the system startup by the notification (Step S).
2007). The notification of the system startup is sent to the PC 120
In addition to this, the operation may be performed on another personal computer (not shown) connected to the communication path 150 and already operating. The notification method in that case is LAN
A method using a dedicated line such as a serial communication path, a method using sound such as a buzzer or lighting of a lamp, or a method using a pager without passing through may be used.

Next, the processing at the time of stop will be described. PC12
When a stop request command is sent from 0 to the start / stop control device 110 (step S2101), this command reaches the start / stop control device 110 via the communication path 150 and is received. Then, the CPU of the start / stop control device 110
When confirming that this is a stop request (step S2102), the 111 transmits a stop request acceptance confirmation message to the PC 120 via the communication path 150, and the PC 120
Confirms that the stop request has been accepted.

Next, the CPU 1 of the start / stop control device 110
1 turns on the channel D _O1 of the digital output port D _O by the input / output controller 116 (step S2103). When the channel D _O1 from the start / stop controller 10 is turned on, the server PC 133 confirms that the request is a shutdown request (step S2004), and executes a shutdown process such as a network termination process (step S2105). This shutdown process is an essential incidental process that must be executed when the PC 120 ends the network server function.

[0105] server PC133 has finished the shutdown process, to the channel D _I1 ON state of the digital input port D _I start stop control apparatus 110 (step S2106). Thereby, the startup stop control device 110 confirms that the shutdown processing has been executed (step S2107), and after a predetermined time has elapsed (step S2108), the relay contact signal R ₁ from the input / output controller 116 relays the relay contact R _1. , to open the R _2,
To stop power supply from the AC connector P ₁ to P ₇ (step S2109). Thereby, the power of the server PC 133 and the like is turned off (step S2110), and the network system stops. After stopping the power supply, the activation stop control device 110 reports the power supply stop via the LAN (step S2111). Upon receiving this, the PC 120 confirms that the network system has been stopped (step S2117).

In this way, when the network system is started and stopped, the system administrator at another place does not need to go to the server PC 133, and the troublesome shutdown processing can be performed extremely easily. Of course, any personal computer that can operate on the LAN can be remotely started and stopped from another personal computer.

In FIG. 20, the server PC 133 has been mainly described, but other electric devices (the printer 135, the printer 135,
Needless to say, the start and stop of the copying machine 136 and the electric heater 140 are also performed at the same time. In this case, in the case of a device such as the electric heater 140 which needs to operate the cooling fan for a certain period of time even after the heater circuit is shut off when the device is stopped, as shown in FIG. using D _O2 of _O is first cut off only the heater circuit, after which accordingly, AC connector P ₇
The power supply from the power supply may be interrupted.

[0108] Further, upon starting or stopping the printer 135 and the copier 136, using the digital output port D _O and digital input port D _I, it is possible to perform the necessary incidental processing.

As described above, according to the present embodiment, it is possible to control the activation of the electric equipment at a remote place via the LAN and to perform necessary additional processing, thereby facilitating the operation management of the system. Further, in the present embodiment, since the start / stop control device 110 has the HUB function, as shown in FIG.
One of Despite consuming a modular connector M _5, modular connector M _1, M ₂ are new provided by start-stop control unit 110 itself. Therefore,
By installing the start / stop controller 110, it is possible to avoid a disadvantage in system construction that the number of modular connectors of the existing HUB becomes insufficient.

[0110] In the present embodiment, it is assumed that perform processing incidental to start and stop using the digital output port D _O, especially for server PC133, via a LAN from start stop control apparatus 110 Communication for such additional processing may be performed.

In the present embodiment, the PC on the LAN
Remote control from LAN 120 via LAN,
In addition, it is also possible to perform remote control via a public line from a remote personal computer or the like that is not on a LAN. For example, as shown in FIG. 21, the serial port S of the start / stop controller 110 is connected to the public line 145 via the modem 141, and the remote PC 1
46 is also connected to the public line 145 by the modem 147. Then, from the PC 146 to the modem 147, the public line 1
Start / stop controller 1 via the modem 45 and the modem 141
By sending a start or stop command to the CPU 10, the same start and stop control as in FIGS. 7 and 20 can be easily performed.

The present invention has been described with reference to some embodiments. However, the present invention is not limited to these embodiments, and can be variously modified within an equivalent range. For example, in each of the above-described embodiments, the process of shutting down the main WS and the server PC has been described as an example of the process accompanying the power shutdown. However, the process is not necessarily limited to the control related to power on / off, but is broader. It is also possible to apply to control use. For example, it is also possible to remotely control various types of experimental equipment using digital input / output signals. In this case, it is also possible to output a relay drive signal instead of a digital signal and directly drive a relay contact provided in an external electric device.

[0113]

As described above, according to the start / stop control device having a network function according to the present invention, the power of the electric equipment is remotely turned on and off via the network, and the auxiliary equipment required when the power is turned on and off. Since the processing is also performed, integrated power management of the electric equipment can be remotely performed. In particular, since the start / stop control device itself is directly connected to the network, remote start that has been impossible in the past can be performed. Further, for example, it is possible to avoid occurrence of trouble due to inadequate management, power failure, or the like in a place where no manager is present. In addition, since necessary additional processing is also performed, appropriate start / stop processing of each electric device in the system can be easily and reliably performed. For this reason, even if the conventional operation of keeping the power on for 24 hours is renewed due to the complexity of performing the proper on / off processing of the power, and the power is sequentially turned off when not in use, the system administrator may The burden does not increase excessively. Therefore, there is no inconvenience of frequently turning off the power, and a great effect is also achieved in reducing energy costs.

In particular, according to the start / stop control device having a network function according to the second aspect, the power on / off control of the information processing device and the accompanying processing are remotely performed via the network. Integrated power management of workstations, personal computers, and the like can be appropriately performed remotely from devices in the network. This has the effect of preventing the occurrence of a system crash or the like due to a power supply environment in an office or the like and a misoperation in the operation management of the network system, thereby ensuring the safe operation of the system.

According to the start / stop control device having a network function of the fourth aspect, in addition to start / stop by remote control via the LAN, a schedule function is provided to automatically start / stop at a preset start / stop time. Since the system is started and stopped, the burden on the system administrator when operating the system according to a predetermined schedule can be further reduced.

According to the start / stop control device having a network function, the start / stop is performed not only by remote control via the LAN but also by manual operation of the start / stop switch. Even a person who does not have knowledge of starting and stopping the system (a person other than the system administrator) can start and stop properly and safely with an extremely simple operation.

According to the start / stop control device having the network function, the stop control is performed not only by the remote control via the LAN but also by the power failure signal output from the uninterruptible power supply at the time of the power failure. Because it was
Even if the power outage continues for a long time beyond the period during which the power supply can be backed up by the uninterruptible power supply, necessary additional processing (shutdown processing) can be performed during the backup period, and system crashes such as loss of data may occur. Can be avoided.

According to the start / stop control device having a network function according to the present invention, in addition to start / stop by remote control via the LAN, an external event (for example, temperature change,
Start / stop control is also performed by sensor signals and control signals generated in response to vibration, approach of humans, or the operating state of electrical equipment, etc., so that fires, earthquakes, abnormalities of various electrical equipment, or Serious obstacles that can be caused to the system by useless intruders or the like can be prevented.

According to the start / stop control device having a network function according to the ninth aspect, in addition to start / stop by remote control via the LAN, start / stop is also performed based on a command sent via a public line or the like. Since the control is performed, for example, remote start / stop control from an external network using a different communication protocol is also possible.

According to the tenth aspect of the present invention, the start / stop control device having the network function has a so-called gateway function, and the start / stop control device and the data communication on the LAN from a device outside the own network via a modem or a public line. It is possible to access through the network to any device in its own network, so it is expected that workstations on other networks will need to access workstations on its own network. Even in such a case, there is no need to newly provide a modem at a workstation that provides a gateway function on the own network. Therefore, it is advantageous in that the system construction cost can be reduced.

According to the start / stop control device having a network function of the present invention, backup communication means is provided separately from a communication path (data communication path) on the network, and necessary auxiliary processing ( Since pre-stop processing or post-start processing is performed, additional processing can be performed reliably even when a failure occurs in the data communication path, and reliability in system operation can be further enhanced.

According to the twelfth aspect of the present invention, the fact that the system or the electric equipment has been started or stopped is reported to the relevant departments, so that the attention of the persons concerned can be obtained. Can be encouraged. For this reason, especially when the system is automatically started and stopped, an unexpected situation that may occur due to the fact that the system administrator or other related persons (users) do not know the fact is minimized. Can be avoided.

According to the start / stop control device having a network function according to the thirteenth aspect, each electric device is started or stopped in a predetermined order with a predetermined time difference. In such a case, it is possible to avoid a problem that may occur when the power is shut down due to a temporary shortage of power due to a superimposition effect of an inrush current, or when power is supplied to or stopped from each electric device in an improper order. be able to.

According to the start / stop control device having a network function of the present invention, since it also functions as a concentrator (HUB), another information processing device or the like is connected to the start / stop control device. Network. For this reason, it is possible to avoid inconvenience in system construction, such as a shortage of existing HUB connection connectors due to the arrangement of the start / stop control device.

According to the start / stop control device having a network function of the present invention, in addition to the automatic start / stop with the accompanying processing, the manual start / stop can be performed, so that a failure occurs in the automatic start / stop function. In this case, starting and stopping can be performed reliably. That is, it is possible to ensure smooth operation of the system in response to an emergency such as a failure of the start / stop control device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a LAN system constructed using a start / stop control device having a network function according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a circuit configuration of the start / stop control device of FIG.

FIG. 3 is a diagram showing contents of user unique information stored in a nonvolatile memory of FIG. 2;

FIG. 4 is a diagram illustrating the contents of a parameter table related to communication and power supply stored in a nonvolatile memory in FIG. 2;

FIG. 5 is a diagram illustrating the contents of an operation schedule table stored in a nonvolatile memory of FIG. 2;

FIG. 6 is a diagram illustrating a format of a data packet on a LAN.

FIG. 7 is a flowchart for explaining a process of starting a system from a WS on the LAN via the LAN in FIG. 1;

FIG. 8 is a flowchart illustrating a process of stopping a system from a WS on a LAN via a LAN in FIG. 1;

FIG. 9 is a flowchart for explaining the contents of a shutdown process in FIG. 8;

FIG. 10 is a flowchart for explaining processing in a case where the system is started according to a schedule operation function, various sensor signals from the outside, or a manual operation switch operation in FIG. 1;

FIG. 11 is a flowchart for explaining processing in a case where the system is stopped according to a schedule operation function, various sensor signals from the outside, or a manual operation switch operation in FIG. 1;

FIG. 12 is a block diagram illustrating an example of a system configuration when starting or stopping from a WS of a remote LAN in another LAN via a public line.

FIG. 13 is a flowchart for explaining processing in a case where system startup is performed using a public line in FIG.

FIG. 14 is a flowchart for explaining processing when the system is stopped using a public line in FIG.

FIG. 15 is a block diagram illustrating another example of a system configuration in the case of starting or stopping from a WS of another remote LAN via a public line.

FIG. 16 is a flowchart for explaining a system stop process in the configuration of FIG. 15;

FIG. 17 is a flowchart for explaining processing when data access to the main WS is performed using the gateway function of the start / stop control device in FIG.

FIG. 18 is a block diagram illustrating a main part of a LAN system constructed using a start / stop control device having a network function according to another embodiment of the present invention.

19 is a block diagram illustrating a circuit configuration of the start / stop control device of FIG.

FIG. 20 is a flowchart for explaining processing when a PC on a LAN starts and stops a start / stop control device via the LAN.

FIG. 21 is a block diagram illustrating an example of a system configuration when starting or stopping from another remote PC via a public line.

FIG. 22 is a block diagram illustrating a start / stop system using a conventional start / stop control device.

[Explanation of symbols]

1, 2 LAN system 10, 110 Start / stop control device 11, 111 CPU (power supply control means, auxiliary processing means,
Schedule management means) 12, 112 LAN controller (communication path connection means) 13, 113 ROM (attachment processing means) 15, 115 Non-volatile memory (schedule management means) 16, 116 Input / output controller (receiving means, off-network communication means) 17 schedule timer (schedule management means) 18,118 HUB function unit (concentrator function unit) 20 main WS (information processing device) 21,31 hard disk device 22,32,41 display device 30,35,36,40 workstation 50, 150 Communication path 60 UPS (uninterruptible power supply) 61 Manual operation switch (start / stop switch) 62, 63, 72, 141, 147 Modem 65, 145 Public line 121, 131 HUB (concentrator) 132, 138, 139 , 14 PC 133 server PC (information processing apparatus) 135 printer 136 copier 140 electric heater _{P 1 ~P 7, C 1,} C 2 AC connector _{R P, R C, R 1} , R 2 relay contact (power control means) SW _{P , SW C, SW 1, SW} 2 bypass switch (manual power control means) S _1, S _2, S serial port (out-of-network communication means, the backup communication means) D _O digital output port D _I digital input ports (state detection signal A ₁ , A ₂ analog input port (state detection signal) M ₁ , M ₂ modular connector R ₁ , R ₂ , R relay drive signal (power control means)

Claims (15)

[Claims] 1. A communication path connecting means for connecting to a data communication path as a component of a local area network, and at least in response to a command sent via the communication path connecting means, Power supply control means for turning on or off the power of a predetermined electric device; and auxiliary processing means for performing predetermined auxiliary processing in conjunction with turning on or off the power of the electric device by the power control means. A start / stop control device having a characteristic network function. 2. The information processing apparatus according to claim 1, wherein the electric device is an information processing device connected to the data communication path, and the additional processing unit performs a predetermined processing required before the information processing apparatus is stopped via the data communication path. 2. A start / stop control device having a network function according to claim 1, wherein a pre-stop process or a predetermined post-start process required after the start of the information processing apparatus is performed. 3. The supplementary processing unit requests the information processing device to execute a predetermined end process that must be performed before the information processing device is turned off when the information processing device is stopped. 3. The start / stop control device having a network function according to claim 2, wherein the power supply to the information processing device is stopped in response to a completion notification of the end processing from the information processing device. 4. The system further stores a set start time or stop time,
2. The power supply control means and the supplementary processing means which operate in response to a command from the schedule management means, further comprising schedule management means for requesting start or stop at a set time. A start / stop control device having a network function according to claim 2. 5. A power supply control means and an additional processing means for receiving an analog signal or a digital signal from the outside, wherein the power supply control means and the auxiliary processing means respond to the analog signal or the digital signal received by the reception means. 3. The start / stop control device having a network function according to claim 1, wherein the start / stop control device operates. 6. The start / stop control device with a network function according to claim 5, wherein the digital signal received by the receiving means is a start signal or a stop signal from a manually operable start / stop switch. 7. The start-up having a network function according to claim 5, wherein the digital signal received by the receiving means is a power failure signal from an uninterruptible power supply for backing up a power supply of the electric equipment at the time of power failure. Stop control device. 8. The start / stop control device having a network function according to claim 5, wherein said analog signal or digital signal received by said receiving means is a state detection signal generated in response to an external event. . 9. An external network communication unit for connecting to another device not included in the own network, wherein the power supply control unit and the additional processing unit are connected to the external device by the external device. 3. The start / stop control device having a network function according to claim 1, wherein the start / stop control device operates in response to a command sent via the network. 10. An external network connecting means for connecting to another device not included in the own network, and exchange between the own network and the other device via the external network connecting means. 3. The network function according to claim 1, further comprising protocol conversion means for performing bidirectional protocol conversion on communication data, wherein the other device can directly access a device in the own network. Start / stop control device. 11. A backup communication means for connecting to the information processing apparatus, wherein the supplementary processing means can execute the pre-stop processing or the post-startup processing by the backup communication means. The start / stop control device having a network function according to claim 2. 12. The apparatus according to claim 1, wherein the additional processing unit has a function of notifying that the power of the electric device has been turned on or off by the power control unit. A start / stop control device having a network function. 13. The activation having a network function according to claim 1, wherein the power supply control means turns on or off the power supply of each electric device in a predetermined order and a time difference. Stop control device. 14. The start / stop control device having a network function according to claim 1, further comprising a concentrator function unit for said data communication path. 15. The apparatus according to claim 1, further comprising a manual power supply control unit capable of manually turning on or off a power supply of said electric device, separately from said power supply control unit. A start / stop control device having a network function according to any one of the above.