WO1998001803A1

WO1998001803A1 - Start/stop controller having network function

Info

Publication number: WO1998001803A1
Application number: PCT/JP1997/002042
Authority: WO
Inventors: Yoshihiro Mitazaki
Original assignee: Isa Co., Ltd.
Priority date: 1996-07-09
Filing date: 1997-06-13
Publication date: 1998-01-15
Also published as: JPH1027043A

Abstract

A start/stop controller which has a network function and with which start and stop of various electric apparatuses can be performed very simply by a remote operation through a network. A LAN system (1) is composed of a start/stop controller (10), a main WS (20) which is a server, workstations WS (30 and 40), a printer server (45), etc. which are connected to each other with communication lines (50) installed in premises. The start/stop controller (10) closes or opens the power supply of the main WS (20), the WS (30), etc. in response to the instructions which are, for instance, sent from the WS (40) through the communication lines (50) and performs the necessary incidental processes (shutdown process, etc.).

Description

Specification

Start / stop control device with network function

Technical field

The present invention relates to a start / stop control device for controlling start / stop of an information processing device such as a personal computer and a workstation, a printer, a copier, and other electric devices. Background art

In recent years, it has become necessary to connect workstations (WS) to personal computers (PCs) via networks such as LANs (local area networks) and WANs (wide area networks) in place of conventional large computers. Distributed processing systems that perform tasks are becoming widely used. The input power specifications of various information processing devices used in such networks are slower than those of large computers, but the power of the devices is cut off due to power failures, instantaneous power failures (short-time power failures), or erroneous operations. In such a case, data loss or hardware failure will occur.

For example, in a multiplexer system using a workstation such as a UNIX (registered trademark in the United States and other countries licensed by X / 0pen Company Ltd.), a disk drive is used to reduce the number of times that the disk is read and written. Even if the writing process to the file is completed, the data in the main memory is saved immediately after the power is turned off during operation because the actual disc is not written to the disk but is saved in the main memory. Disappears, causing a system crash. In order to avoid such a situation, a special process for system maintenance (hereinafter referred to as a shirt down process) is required before turning off the workstation. However, since the operation of this shutdown process is generally complicated, it must be usually performed by a predetermined system administrator. This requires the system administrator to be present until all of the end users in the system have finished their work. Also, when starting or stopping the system Since there are restrictions on the power-on sequence or power-off sequence between peripheral devices such as hard disk devices and the CPU (central processing unit), it is complicated and difficult to always do this accurately.

Under these circumstances, the system power supply is usually kept energized for 24 hours. It is not preferable to supply power to the machine when the machine is unattended outside office hours, considering the danger of fire, etc., especially in laboratories where fire management is strict. And so on.

Also, in a LAN system using a personal computer as a server, such as a NetWare (registered trademark of Novell Inc.), a network failure may occur if the power supply of the device is suddenly cut off. Therefore, a predetermined network stop processing (hereinafter, referred to as a network shutdown processing) is required before the power is turned off. Therefore, even such a system has a problem in the operation management related to the start and stop as described above.

By the way, a so-called UPS (Uninterruptible Power Supply) is known as a device for protecting the system from the above-mentioned power failure or momentary power failure. However, this UPS uses a built-in battery to back up the power supply to the target equipment in the event of a power outage.For example, if the power outage continues for a long time and exceeds the UPS backup time, In such a case, unless the necessary measures (such as shutdown processing and network stop processing) 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 extremely simple switch operation or a power failure signal from UPS, etc., the system side was required to perform shutdown down processing etc. necessary for system shutdown. A start / stop controller with the function of shutting down the system power supply has appeared.

Figure 22 shows an example of a system configuration using a conventional start / stop control device.

. The start stop control apparatus 2 1 0 includes a AC connector to P ₄ for outputting an AC voltage by receiving power Kyoawase from UPS 2 6 0 which is connected to a commercial power source, workstations by RS 2 3 2 C Ke one Bull Serial port that can be connected to It has a S Here, the AC connector to P _4, respectively WS 2 2 0, the display device 2 2 1, power cord one de of the hard disk drive 2 2 2 and the printer 2 3 0 are connected, each device from each of these connectors Power is supplied to The display device 221, the hard disk device 222 and the printer 230 are respectively connected to the WS 220 by a signal cable. The WS 220 is connected to a communication path 250 constituting a LAN.

The UPS 260 charges the built-in battery (not shown) and supplies power to the start / stop control device 210 when the power is turned on. However, the UPS 260 supplies the power stop signal to the start / stop control device 21 when a power failure occurs. The power is output to 0 and the power stored in the internal battery is supplied to the start / stop controller 210. Start stop control apparatus 2 1 0, when receiving the power failure signal from the UP S 2 6 0 during power supply from the AC connector Pi to P ₄ to WS 2 2 0 or the like, RS 2 3 immediately from Shiriarupo Ichito S A shut down request signal is sent to WS 220 via a 2C cable. In addition, the start / 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 end of the shut Bok down process in WS 2 2 0, in response to the shirt down processing end signal sent to the serial port S, the power of the AC connector P, from to P ₄ to WS 2 2 0 etc. The supply has been stopped.

In a system using such a start / stop control device, a system administrator can extremely easily execute a complicated shutdown process by using the manual operation switch 261, thereby facilitating the operation management of the system. In addition, even if a shutdown cannot be executed by the system administrator during the backup period of the startup / shutdown control device 210 by the UPS 260 during a power failure, the power failure signal from the UPS Since the shutdown process is performed automatically in response to this, it is possible to prevent a system crash due to a power failure when the system administrator is not present.

As described above, in the conventional start / stop control device, the system start can be easily performed by one operation of the manual operation switch 261, but in this case, the system administrator sets the start / stop control device 210 To the location where the It is necessary to operate the work switch 2 6 1. Therefore, for example, when the system administrator is in a place remote from the start / stop controller 210 and WS 220, it is impossible to start the system immediately. Also, 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, which is troublesome.

However, when stopping the system, a shutdown command is sent from another workstation to the WS 220 via the communication path 250 to perform a shutdown process, and then the WS 220 is stopped. By requesting the start / stop control device 210 to stop power supply from 0 through RS232C, it is possible to remotely perform automatic shutdown. However, when the system is started, it is impossible to start by such a remote operation because the WS 220 is not operating in the first place. Such a request for starting and stopping from a remote location is based on the use of OA equipment such as a copier and OHP (overhead projector) used in a general office environment, or various electronic and electrical equipment such as air conditioners. It also exists for equipment. A large number of OA equipments are remotely started before office operation and pre-heated, etc. to put them in a standby state.On the contrary, after the office is closed, many 0A equipments are cooled down by remote operation. This is because it is convenient if the power can be cut off. Disclosure of the invention

The present invention has been made in view of such a problem, and has as its object to provide a start-up having a network function that can start and stop various electric devices extremely easily by a remote operation via a network. It is to provide a stop control device.

A start / stop control device having a network function according to the present invention includes: a communication path connecting means for connecting a data communication path as a component of a oral area network; and at least a communication path connecting means. Power control means for turning on or off the power of a predetermined electric device in response to a command transmitted through the power supply device, and a predetermined incidental device accompanying the turning on or off of the power of the electric device by the power control means And an auxiliary processing means for performing processing. This device uses a remote electrical connection via a network. The power on / off control of the device can be performed, and additional processing required when the power is turned off is also performed. For this reason, integrated power management of electrical equipment from remote locations is possible. In particular, since the start / stop controller itself is directly connected to the network, remote start, which was impossible in the past, is also possible. In addition, it is possible to avoid problems caused by inadequate management, power failure, and the like, for example, in an area where no manager is present. In addition, since necessary auxiliary processing is also performed, appropriate start / stop processing of each electric device in the system can be performed easily and reliably. For this reason, even if the conventional operation of keeping the power on for 24 hours was renewed due to the complexity of performing the proper on / off processing of the power supply, and the power was turned off sequentially when not in use, the system management The burden on the person is not excessively increased. Therefore, there is no inconvenience of frequently turning off the power, and it has a great effect on reducing energy costs.

According to another embodiment of the present invention, there is provided a start / stop control device having a network function, wherein, when the electric device is an information processing device connected to a data communication path, the additional processing means performs information processing via the data communication path. A predetermined pre-stop process required before the device is stopped or a predetermined post-start process required after the start of the information processing device is performed. In this device, the power on / off control of the information processing device can be remotely performed via a network, and ancillary processing required when the power is turned on / off is also performed. For this reason, integrated power management of a workstation, a personal computer, and the like in the network can be appropriately performed remotely from a device in the network. As a result, it is possible to prevent the occurrence of a system crash due to a power supply environment in an office or the like and a mistake or an operation in the operation management of the network system, and to ensure a safe operation of the system. is there.

According to still another aspect of the present invention, there is provided a start / stop control device having a network function, wherein the additional processing means performs processing of a predetermined end process which must be performed before the information processing apparatus is turned off when the information processing apparatus is stopped. A request is made to the device, and the power supply control means is configured to stop supplying power to the information processing device in response to the completion notification of the termination processing from the information processing device.

A start / stop control device having still another network function according to the present invention further comprises: And a schedule management means for storing the set start time or stop time and requesting start or stop when the set time comes. The power supply control means and the auxiliary processing means are provided with the schedule management means. It is configured to operate in response to commands. In this device, in addition to starting and stopping by remote control via LAN, scheduled operation is performed such that starting or stopping is automatically performed at preset starting and stopping times. Therefore, the burden on the system administrator when operating the system according to a predetermined schedule can be further reduced.

A start / stop control device having still another network function according to the present invention further includes a receiving means for receiving an analog signal or a digital signal from the outside, wherein the power supply control means and the auxiliary processing means are controlled by the receiving means. It is configured to operate in response to an analog signal or a digital signal received. In this device, in addition to starting and stopping by remote control via LAN, start and stop control is performed in response to received analog or digital signals.

Still another start / stop control device having a network function according to the present invention is configured such that the digital signal received by the receiving means is a start signal or a stop signal from a manually operable start / stop switch. . This device is started and stopped by remote control via LAN, and also by manual operation of the start / stop switch. For this reason, even those who do not have knowledge of starting and stopping the system (those other than the system administrator) can start and stop properly and safely with extremely simple operations.

A start / stop control device having still another network function according to the present invention is configured such that the digital signal received by the receiving means is a power failure signal from an uninterruptible power supply that backs up a power supply of an electric device in the event of a power failure. Things. In this device

In addition to stopping by remote control via LAN, stop control is also performed by a power failure signal output from the uninterruptible power supply during a power failure. For this reason, even if the power outage continues for a long period of time beyond the period during which the power supply can be backed up by the uninterruptible power supply, the necessary additional processing (shutdown processing) can be performed during the backup period.

-System crashes such as the disappearance of evenings can be avoided. Still another start / stop control device having a network function according to the present invention is configured such that an analog signal or a digital signal received by the receiving means is a state detection signal generated in response to an external event. . In this device, in addition to starting and stopping by remote control via LAN, a state detection signal (sec) generated in response to an external event (for example, temperature change, vibration, approach of a person, or the operation state of electric equipment, etc.) Start-stop control is also performed by a sensor signal or a control signal. Therefore, it is possible to prevent a fire, an earthquake, an abnormality of various electric devices, or a serious obstacle that may be caused in the system by an unnecessary intruder or the like.

A start / stop control device having still another network function according to the present invention further includes a non-network communication means for connecting with another device not included in the own network, a power supply control means, and an auxiliary device. The processing means is configured to operate in response to a command sent from another device via the off-network communication means. In this device, in addition to starting and stopping by remote control via LAN, start and stop control is also performed based on commands sent via communication means outside the network (modem, public line, etc.). In other words, remote start / stop control from outside the own network is also possible. For this reason, for example, remote start / stop control from an external network using a different communication protocol is also possible.

A start / stop control device having still another network function according to the present invention further includes an external connection means for connecting to another device not included in the own network, and an external connection means. Protocol conversion means for bidirectional protocol conversion of communication data exchanged between the local network and other devices via the network, allowing direct access to the devices in the local network from other devices It is what it was. This device has a so-called gateway function (bidirectional protocol conversion function) that allows through-access from a device outside the local network to any device in the local network via a public line or a start-up control device. It becomes possible to do. For this reason, even if it is expected that workstations on another network will need to access workstations on their own network, a gateway function will be provided on their own network. Work station

-There is no need to provide a new off-network communication means, such as a modem, in the station. did Therefore, it is advantageous in that the system construction cost can be reduced.

A start / stop control device having still another network function according to the present invention further includes backup communication means for connecting to the information processing device, and the auxiliary processing means is provided by the backup communication means. It is configured so that pre-stop processing or post-start processing can be executed. In this device, ancillary processing (pre-stop processing or post-startup processing) is performed using backup communication means provided separately from the communication path (data communication path) on the LAN. For this reason, even if a failure occurs in the data communication path, the additional processing can be performed without fail, and the reliability in system operation can be further enhanced.

A start / stop control device having still another network function according to the present invention is configured such that the additional processing means also has a function of notifying that the power of the electric device has been turned on or off by the power control means. It was done. With this device, the fact that startup or shutdown has been performed is reported to the relevant departments, so that the concerned parties can be alerted. For this reason, especially when the system is automatically started / stopped, unexpected situations that may occur due to the fact that the system administrator or other related parties (users) do not know the fact are minimized. Can be avoided.

According to still another aspect of the present invention, there is provided a startup / stop control device having a network function, wherein the power supply control means is configured to turn on / off the power of each electrical device with a predetermined order and time difference. . In this device, each electric device is started or stopped in a predetermined order with a predetermined time difference. For this reason, for example, when each electric device is started at the same time, the power may be shut down due to a temporary shortage of power due to the superimposition effect of the rush current, or power may be supplied to each electric device in an improper order or stopped. Can avoid inconveniences that may occur when performing

0

A start / stop control device having still another network function according to the present invention further includes a concentrator function unit for a communication path (data communication path) on a LAN. Since this device also functions as a concentrator (HUB), a network can be constructed by connecting another information processing device and the like to this start / stop control device. For this reason, the existing HUB connection Inconveniences in system construction such as a shortage of ports can be avoided. The start / stop control device having another network function according to the present invention further includes, apart from the power supply control means, a manual power supply control means capable of manually turning on / off the power of the electric device. It is a thing. This device can be started and stopped automatically, as well as manually started and stopped. For this reason, even if a failure occurs in the automatic start / stop function, it can be started and stopped reliably. That is, it is possible to ensure smooth operation of the system even in the event of a failure of the start / stop control device itself. BRIEF DESCRIPTION OF THE FIGURES

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 showing a circuit configuration of the start / stop control device of FIG.

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

FIG. 4 is a diagram showing the contents of a parameter table relating to communication and power supply stored in the nonvolatile memory of FIG.

FIG. 5 is a diagram showing the contents of the operation schedule table stored in the nonvolatile memory of FIG.

FIG. 6 is a diagram showing a format of a data bucket on the LAN.

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

FIG. 8 is a flowchart for explaining a process of stopping the system from WS on LAN in FIG. 1 via LAN.

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

FIG. 10 is a flowchart for explaining a process when the system is started in FIG. 1 in accordance with a schedule operation function, various sensor signals from the outside, or a manual switch operation. FIG. 11 is a flowchart for explaining a process when the system is stopped according to the schedule operation function, various sensor signals from the outside, or the manual operation switch operation in FIG.

FIG. 12 is a block diagram showing a system configuration example in the case of starting or stopping from the WS of another LAN in a remote place via a public line.

FIG. 13 is a flowchart for explaining the processing when the system is activated using the public line in FIG.

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

FIG. 15 is a block diagram showing another system configuration example when starting or stopping from a remote LAN WS via a public line.

FIG. 16 is a flowchart for explaining the system stop processing in the configuration of FIG.

FIG. 17 is a flowchart for explaining the processing when data access to the main WS is performed using the gateway function of the start / stop controller in FIG. FIG. 18 is a block diagram showing 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.

FIG. 19 is a block diagram showing a circuit configuration of the start / stop control device of FIG. FIG. 20 is a flowchart for explaining a process in the case of starting and stopping the start / stop control device from the PC on the LAN via the LAN.

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

FIG. 22 is a block diagram showing a start / stop system using a conventional start / stop control device. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

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

HD (hard disk unit) 21 and DSP (display unit) 22 are used in main WS 20, HD unit 31 and DSP 32 are used in WS 30, and DSP 4 is used in WS 40. 1 Power Each is connected by a dedicated signal cable. Of these, HD 2 1, DS P 2 2, HD 3 1, and DS P 3 2 of the cord power from there is connected to the AC connector to P ₄ of the boot stop control system 1 0 as a peripheral device Power is supplied to the main WS 20 and WS 30 as the CPU main unit, and the AC connector C of the start / stop controller 10! , And summer therefrom is connected to a C ₂ to receive power Kyo耠.

The start / stop control device 10 supports the AC connectors P, I ^ .d.Cz and RS232C that output AC voltage by receiving power supply from the UPS 60 connected to commercial power. serial port, and S _2, the digital output boat D. When, a de Ijitaru input port D], the analog input port one DOO eight, and A _2, and the power failure signal port one preparative PD for receiving power failure signal 6 7 from UP S 6 0, the manual operation Suitsuchi 6 1 Starting A manual signal port SW for receiving a signal or a stop signal.

Here, AC connector Pi to P ₄ is a peripheral device dedicated power connector evening, as described above, AC connector C,, C ₂ is a C PU body (workstation) dedicated power connector. While S ₂ serial port I is connected to the main WS 2 0 serial port (not shown).

The start / stop controller 10 also has a so-called HUB (concentrator) function.

, Modular connector M that support this HUB function, and a M _2. For example, by connecting other WS 35, 36 to the modular connector \ ₁₁ , 1 ^ ₂

These WSs 35, 36 can be connected to the communication channel 50.

When power is supplied to the UPS 60, charging the built-in battery (not shown) In both cases, power is supplied to the start / stop controller 10, but in the event of a power failure, a power failure signal 67 is output to the start / stop controller 10 and the power stored in the built-in battery is supplied to the start / stop controller 10. Supply.

The start / stop controller 10 responds to a start request or a stop request (shutdown request) sent from the WS 40 on the third floor via the LAN (via the communication path 50), and responds to the request from the main WS. Power is supplied to or cut off from the power supply 20 and necessary processing accompanying it (such as a request to shut down the main WS 20 before the power supply is cut off) is performed. In the following description, “via LAN” means that communication is performed via the communication channel 50.

The start / stop controller 10 also requests a shutdown down to the main WS 20 via LAN even when receiving a power failure signal 67 from the UPS 60 while supplying power to the WS 20 etc. It has become. In addition, the start / stop control device 10 includes a start / stop signal from the manual operation switch 61 and analog input ports from various sensors (temperature sensor, humidity sensor, vibration sensor, human body proximity sensor, etc.) not shown. a,. detection signal input to the a _2, further also responsive to the digital signal inputted digital input port D, and ( "0" or "1"), the power Kyo耠to the main WS 2 0, etc. Alternatively, the power supply is shut down, and necessary processing accompanying it (such as processing a request to shut down the main WS 20 before the power supply is shut down) is performed. In addition, power supply or power supply to the main WS 20 or the like is performed in a predetermined order.

The start / stop control device 10 further has a schedule operation function for automatically starting and stopping the system every day according to a preset schedule. When the system is started (power supply) or system stopped (power cut-off) by this schedule operation function, necessary additional processing (such as processing a shutdown request to the main WS 20 before power-off) is performed. Of course there are. In the present embodiment, in addition, the start-stop controller 10 and the main WS 20 are connected by an RS232C cable as a power backup communication path.

. As a result, even if a failure occurs in the communication channel 50, this backup By using the communication path for the backup, it is possible to perform the processing necessary for power supply or power shutdown as described above (such as processing a request to shut down the main WS 20 before power shutdown). ing.

FIG. 2 shows the internal configuration of the start / stop control device 10. As shown in this figure, the start / stop controller 10 is a LAN controller (LANC TLTL) as a communication interface connecting the CPU 11 for controlling the operation of the entire device and the communication path 50. ) 1 2, ROM (read only memory) 13 that stores programs that govern the operation of the device, RAM (random access memory) 14 as work memory, and operation of the device Non-volatile memory 15 for storing various parameters related to the I / O, an input / output controller (I / CTL.) 16 for interfacing various input / output signals, and a schedule timer 17 with a built-in calendar clock I have. These are interconnected by an internal bus 9. Here, mainly the CPU 11 corresponds to the additional processing means in the present invention, and the RAN controller 12 corresponds to the communication path connecting means in the present invention. Further, the CPU 11 and the schedule timer 17 correspond to the schedule management means in the present invention. The start / stop controller 10 further includes a noise filter 19 having one end connected to the power supply line from the UPS 60. The other end of the noise filter 1 9, AC connector P for the peripheral device via the re les one contact R _P, is connected to to P _4, AC connector for the computer via the relay contact R _c d, it is adapted to be connected to C _2. Each relay contacts R _P, Rc is controlled to open and close with a predetermined time difference by connexion mutually relay driving signal R〗. R ₂ outputted from the input-output controller one La 1 6 by instructions from CPU 1 1 It has become. The relay contacts R _P and Rc can be replaced with semiconductor switches. Start stop control apparatus 1 0 also, the relay contact R _P, bypass arranged in parallel and Rc Susuitchi SW _P. Equipped with SWc, and One Do can be opened and closed manual operation as necessary. Furthermore, starting and stopping the controller 1 0, modular connector, WS 3 5 which is connected to M _2, 3 6 (FIG. 1) and the communication channel 5 0 waveform shaping and增幅like of the LAN signal exchanged between the A HUB function unit 18 is provided. Where the serial port Corresponds to the backup communication means S ₂ is in the present invention, a digital input port D,, analog input port A!, A _2, power failure signal port one preparative PD and manual signal port SW corresponds to the receiving means in the present invention was mainly relay contact R _P, Rc corresponds to the power control means in the present invention, HU B functional unit 1 8 corresponds to the concentrator functional unit that put the present invention. Further, the bypass switches SW _P and SWc correspond to the manual power control means in the present invention.

Output controller 1 6, the relay driving signals Ri, Shiriarupo one to transmit and receive serial input signals to Ho force ,, RS 2 3 2 C ports for outputting R ₂ to Bok support S>, and S _2, a digital Digital output port D for outputting signals. When the digital input port D for receiving the de-digital signal, and the analog input port A for receiving the analyst port grayed signal from an external sensor or the like, and A _2, a power failure to receive the power failure signal 6 7 from UPS 6 0 It has a signal port PD and a manual signal port SW for receiving a start signal or a stop signal from the manual operation switch 61.

FIG. 3 shows information related to user identification among parameters stored in the nonvolatile memory 15. For example, “shutdo wn” as a user name, “abcd” as a password, and “IP address” as an IP address. “1 2 3. 4 5. 6 7. 8 9” It is strongly registered. Here, the IP (Internet Protocol) address indicates that the protocol used in this LAN system is TC? / IP address on LAN which is usually used for IP (Transmission Control Protocol I Internet Protocol).

FIG. 4 shows information related to serial communication and power supply among the parameters stored in the nonvolatile memory 15. Here, a serial port, a S ₂ baud rate - DOO Each "9 6 0 0 BPS", is set to "4 8 0 0 BPS", power supply stop latency "5 minutes", power recovery wait time of power failure Is set to "10 minutes", the power supply start time difference is set to "15 seconds", and the power supply after power recovery is set to "re-power".

Here, the power supply stop waiting time is defined as the time when the main WS 20 executes the shutdown processing in response to the shutdown request from the start / stop controller 10 to the main WS 20 and the time from the main WS 20. shirt down execution of confirmation of activation stop control device 1 0 receives AC connector from P〗 to P _4, Ci, power supply to the C ₂ Represents the time to shut off. The power recovery waiting time at the time of a power failure indicates the time from the occurrence of the power failure to the elimination of the power failure. In practice, the battery backup time by the UPS 60 is set. Further, the power supply start time difference, AC connector P, AC connector from the power supply start to ~ P _4, represents the time difference until the power supply start to C _2, specifically the relay driving signal, the R ₂ Output This is the timing difference. After the power is restored, the “electric breakdown state” refers to a power outage that occurs when the power to the main WS 20 is shut down after the UPS 60 shuts down due to the battery backup, and then the power is restored (the power outage is resolved). It indicates whether or not to supply power to the main WS 20 or the like again when it is done. These parameters can be set by a setting switch (not shown) provided on the side of the start / stop control device 10, and furthermore, the main WS 20 or other WS 30, 40, etc. It can be set via LAN at any time. Fig. 5 shows the operation management table used for performing scheduled operation among the parameters stored in the non-volatile memory 15. The start time and the stop time are set for each day of the week. . The CPU 11 (Fig. 2) performs the necessary control for starting or stopping the main WS 20 etc. according to the operation management table in Fig. 5 based on the day and time information obtained from the schedule timer 17. It has become.

FIG. 6 shows a format of a data bucket flowing on the communication channel 50. As shown in this figure, each data bucket uses a destination address that represents the IP address of the destination node, a source address that represents the source IP address, and one LAN interface for multiple higher-level protocols at the same time. When possible, the type used for distribution to the upper layer, the data that is the content of the information to be actually transmitted, such as commands and various messages, and bit errors in the data It is configured to include a frame 'check' sequence for checking whether or not it has occurred.

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

Figure 7 shows the main WS 20 and its peripherals from the WS 40 on the third floor via LAN.

(HD 21, DSP 22) when the startup control is performed. this As shown in the figure, first, when a start request command is sent from the WS 40 to the start / stop control device 10 using a data bucket of the format shown in FIG. 6 (step S701), the data bucket Arrives at the start / stop controller 10 via the communication path 50, and is taken in by the CPU 11 (step S702).

The CPU 11 analyzes the data content of the fetched data bucket and confirms that this is a system start request, and transmits a start request acceptance confirmation message to the WS 40 via the communication channel 50. (Step S703). The WS 40 receives the activation request acceptance confirmation message from the activation / stop control device 10 and confirms that the activation request has been accepted (step S704).

Next, the CPU 11 of the start / stop controller 10 performs a power-on control to output the relay drive signal R ₂ via the input / output controller 16 to close the relay contacts R _P and R c ( step S 7 0 5), AC connector to P ₄ and AC connectors C, and starts to supply power from the C ₂ to the main WS 2 0, etc. (step S 7 0 6). As a result, the power of the main WS 20 s WS 30 and the like is turned on, and the system is started (step S 707). At this time, the relay drive signal, since a predetermined time difference to the output timing of the R ₂ (power supply start time difference 4 = 1 5 seconds in this case) is provided, and power supply to the peripheral device group is started Power supply to the main WS 20 and WS 30 will be started after these devices become stable. By performing power supply control with such a time lag, a more reliable system start-up becomes possible.

Now, 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 channel 50 (step S 708). The WS 40 confirms the completion of the system startup by the notification (step S709). The system start-up notification may be made not only to WS 40 but also to other work stations (not shown) connected to the communication path 50 and already operating. In such a case, the notification may be made via a dedicated line such as a serial communication path provided separately instead of via the LAN. Further, a 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. 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 of the start / stop controller 10 by the manual operation switch 61. There is no need to extend the floor to the second floor for this purpose, and the startup operation can be performed while staying on the third floor, saving the trouble of moving. In addition, the fact that the system is started can be notified to the relevant places or the entire premises by notifying the system at the time of start-up, so that the people concerned can be alerted. In the present embodiment, remote activation is performed from the WS 40 on the third floor. However, the present invention is not limited to this, and the operable one-station connected to the communication path 50 is not limited to this. Of course, it can be remotely activated from any other workstation (not shown) on any other floor.

FIG. 8 shows an operation in the case where stop control of the main WS 20 and its peripheral devices (HD 21 and DSP 22) is performed from WS 40 on the third floor via LAN. As shown in this figure, first, when a shutdown request command is sent from the WS 40 to the start / stop controller 10 (step S810), the command is started / stopped via the communication channel 50. Reach controller 10.

Upon receiving the shutdown request command (step S802), the CPU 11 of the start / stop controller 10 transmits a shutdown request acceptance confirmation message to the WS 40 via the communication channel 50. (Step S803). The WS 40 receives the shutdown request acceptance confirmation message from the start / stop controller 10 and confirms that the shutdown request has been accepted (step S804).

Next, the CPU 11 of the start / stop controller 10 starts the following shutdown sequence (step S805). First, a shutdown request is made to the main WS 20 via the LAN (step S806). When the main WS 20 receives the shutdown request from the start / stop controller 10 (step S807), the main WS 20 transmits a shutdown down request acceptance confirmation message to the start / stop controller 10 (step S8). 0 8). The start / stop controller 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 performs the actual shutdown process (step Step S810). This shutdown process is an essential supplementary process that must be executed by the main WS 20 before shutting down the system, that is, the 0S (operating system). As shown in FIG. As shown in this figure, the main WS 20 first creates a log, which is a system operation record (step S901 in FIG. 9), and then sends it to all workstations on the LAN system 1. To stop the system (step S902). Next, after performing a stop process of the user process (the application program being executed by the user) (step S903), a shutdown process execution confirmation message is transmitted to the start / stop controller 10 (step S903). S904). Further, predetermined stop processing required on the system side (OS side) is executed (step S905).

Returning to FIG. 8, the description will be continued. 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 (see FIG. 9). 8 steps S811). Then, after a lapse of a predetermined time (power supply stop waiting time in FIG. 4—here, 5 minutes) (step S813), a process for stopping power supply to the main WS 20 and the like is performed (step S8). 8 1 4). Specifically, first, the relay contacts R _P , Rc are opened by the relay drive signals R,, R ₂ via the input / output controller 16, and from the AC connectors P ₄ and AC connectors C,, C ₂ Power supply to the main WS20 etc. is stopped (step S814). As a result, the power of the main WS 20 and WS 30 is turned off (step S815), and the system is stopped.

Also in this case, as in the case of feeding initiation (FIG. 7), relay driving signals R,, with a time difference to the output timing of the R _2, the power supply stop timing to the peripheral unit and the computer unit It may be shifted. For example, the power supply to the peripheral devices (such as the HD 21) may be stopped after the power supply to the main WS 20 and WS 30 is stopped. This enables more reliable shutdown processing. This can be achieved by adding a parameter called the power supply stop time difference to the parameters shown in Fig. 4.

Now, after stopping the power supply to the main WS 20 and the like, the start / stop controller 10 The power supply stop is notified via the communication channel 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 S817).

In this way, even when the system is stopped, the system administrator on the third floor does not need to go to the second floor and can easily perform cumbersome shutdown processing while staying on the third floor. it can. Of course, any operable work station connected to the communication channel 50 can be remotely stopped from any other work station (not shown) on any other floor.

FIG. 10 shows an 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 becomes equal to the predetermined start time (see FIG. 5) (step S1001; Y), the analog input port A, the predetermined level of the sensor signal to a ₂ is input (Sutetsu flop S 1 0 0 2), the digital input ports D, predetermined digital signal is input (step S 1 0 0 3), or manual operation If any one of the conditions (step S1004) that the start signal is input by the switch 61 (step S1004) is satisfied, the CPU 1 of the start / stop controller 10 1, the relay driving signal through the input and output co Ntoro one la 1 6, relay contacts and R ₂ outputs with a predetermined time difference R _P, performs power-on control to close the R c (step S 1 0 0

6) Then, the power supply to the main WS 20 and the like is started (step S1007). As a result, the power of the main WS 20, WS 30 and the like is turned on, and the system is started (step S 1 08). Then, after the power supply to the main WS 20 and the like is started, the start / stop control device 10 reports the fact to the related workstations via the communication channel 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, in such a case, as described in FIG. 7, a dedicated line such as a serial communication path provided separately may be used regardless of the LAN.

, A method using sound such as a buzzer, a visual method such as lighting a lamp, or A method using a pager may be used.

In this way, automatic start-up by a schedule operation function and automatic start-up by analog detection signals from a temperature sensor, a humidity sensor, a vibration sensor, a human body proximity sensor, etc. can be performed, and other devices such as a copying machine and an air conditioner can be used. It is also possible to perform automatic startup in conjunction with the electrical device by inputting a digital signal from the electrical device, and manual startup by a system administrator or the like.

FIG. 11 shows an 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 manually operated 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 S111; Y), the analog input port A, , a a predetermined level of the sensor signal is input to the ₂ (Sutetsu flop S 1 1 0 2), the predetermined digital signal is input to the digital input port D! (step S 1 1 0 3), UPS 6 Either the power failure signal input from 0 (S110) or the stop signal input by the manual operation switch 61 (Step S110) is satisfied. (Step S1106), the CPU 11 of the start / stop controller 10 recognizes that the conditions for the shirt down processing are satisfied (Step S1107), and the steps S110-S are executed. 11. Start the shutdown sequence shown in 1 18 (Step S 1 108). This shutdown sequence is the same as the contents shown in steps S806 to S816 in FIG. 8, and therefore the description is omitted here. Also, the contents of the shutdown process executed on the main WS 20 side are the same as those shown in FIG.

After stopping the power supply to the main WS 20 and the like in step S111, the start / stop controller 10 notifies the power supply stop via the communication path 50 (step S11). 1 1 1 9). As described in Fig. 7, the notification in this case is also made by using a dedicated line such as a serial communication path that is separately provided without going through the LAN, using a sound such as a buzzer, etc. Method or a method using a pager may be used.

In this way, in addition to the automatic stop by the schedule operation function, the temperature sensor, Automatic stop by analog detection signal from humidity sensor, vibration sensor, human body approach sensor, etc., and automatic stop in conjunction with the electric equipment by digital signal input from other electric equipment are possible. Can be automatically stopped in response to a power failure signal from UPS 60 while the battery is backed up by UPS 60, thus ensuring system security against unexpected situations be able to. In addition, a manual stop by a system administrator or the like can be performed with a very simple operation, and the operation management of the system becomes easy.

If 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 power supply status 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 restoration is set to "re-power supply", so the power is automatically restarted 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 another remote LAN workstation via a public line. In this example, a modem (modulator / modulator) 62 is connected to one serial port S, of the start / stop controller 10, so that it can be connected to the public line 65. On the other hand, the modem 72 is connected to the WS 71 connected to the other LAN system 2 so that it can be connected to the public line 65. The LAN system 2 is configured by connecting a WS 73 and a printer server 74 with a communication path 70 in addition to the WS 71, and is different from the communication protocol on the LAN system 1. It may use a protocol. Other configurations are the same as those in FIG.

Next, in the above configuration, an operation when starting or stopping the LAN system 1 from the WS 71 of another LAN 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 a start request command is sent from the WS 71 of the LAN system 2 to the start / stop controller 10 of the LAN system 1 in a format based on, for example, RS232C ( Step S1301), this command is for modem 7 2. It reaches the start / stop controller 10 via the public line 65 and the modem 62, and is taken in by the CPU 11 (step S1302).

The CPU 11 analyzes the fetched command contents and confirms that this is a system start request, and then sends a start request acceptance confirmation message via the modem 62, the public line 65 and the modem 72 to the WS 7 Transmit to 1 (step S1303). The WS 71 receives the activation request acceptance confirmation message from the activation / stop control device 10 and confirms that the activation request has been accepted (step S1304).

Next, the CPU 11 of the start / stop controller 10 performs power-on control in the same sequence as step S705 in FIG. 7 (step S1304). As a result, power supply to the main WS 20 and the like is started (step S 13 05), and the system is started (step S 13 06).

After starting power supply to the main WS 20 and the like, the start / stop controller 10 notifies the WS 71 via the modem 62, the public line 65, and the modem 72 of the start of power supply (step S130). The WS 71 confirms the completion of the system startup based on the notification (step S1308). It should be noted that the system startup is notified not only to the WS 71 but also to other workstations (for example, WS 40) that are connected to the communication channel 50 in the LAN system 1 and are already operating. You may do so. 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.

Figure 14 shows the operation when the system is stopped using the public line 65. The main processing flow in this case is the same as in FIG. That is, first, from the WS 71 of the LAN system 2 to the start / stop controller 10 of the LAN system 1, via the modem 72, the public line 65 and the modem 62, based on the RS232C. When a shutdown request command is sent in a format that conforms to that shown in FIG. 14 (Step S1401), this command reaches the start / stop controller 10 and is captured by the CPU 11 (Step S140). 2).

Upon receiving the shutdown request command (step S1402), the CPU 11 of the start / stop controller 10 receives the command via the modem 62, the public line 65, and the modem 72. Then, a shutdown request acceptance confirmation message is transmitted to WS 71 (step S1403). The WS 71 receives the shutdown request acceptance confirmation message from the start / stop controller 10 and confirms that the shirt shutdown request has been accepted (step S14404).

Next, the CPU 11 of the start / stop controller 10 starts the shutdown sequence via the LAN according to the procedure shown in steps S1406-S1415 (step S14). 0 5). The contents of this shutdown sequence are the same as the contents of steps S806 to S816 in FIG. 8, and thus description thereof is omitted here.

After stopping the power supply to the main WS 20 and the like, the start / stop control device 10 notifies the line power stop via the modem 62, the public line 65, and the modem 72 (step S14). 1 6). Upon receipt of this, the WS 711 confirms that the system has been stopped (step S 14 17).

As described above, in the present embodiment, the system administrator in the remote place can start / stop the start / stop operation by the manual operation switch 61 on the start / stop controller 10 in the premises where the LAN system 1 is constructed. Even if no one can perform the operation, it is not necessary to come from a remote place to start and stop the system, and the start and stop operations can be performed from a remote place. In addition, by notifying the notification at the time of starting or stopping other than WS71, it is possible to make the fact of starting or stopping known to each related place or the whole premises.

In the present embodiment, after remote starting from WS 71 of the other LAN system 2 as described above, data is further transmitted from WS 71 to the main WS 20 in the LAN system 1. When performing access services, as shown in Fig. 12, a modem 63 is also connected to the main WS 20, and the modem 63 is connected via the modem 72, the public line 65, and the modem 63. It is possible to access the main WS 20 from WS 71.

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

FIG. 15 shows another configuration example in which the LAN system 1 is started or stopped from a remote LAN workstation at a remote location via a public line. In this example, the modem 6 is connected to one serial port of the start / stop controller 10. C / JP 7/0042

2 and connect it to the public line 65, while connecting the modem 72 to the WS 71 connected to the other LAN system 2 and connect it to the public line 65. Further, between the start stop control apparatus 1 0 other serial port Bok S ₂ and the main WS 2 0 serial port (not shown), connected by RS 2 3 2 C Cape Le as a backup channel. Other configurations are the same as those in FIG.

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

When starting the system such as the main WS 20, the procedure is the same as the procedure shown in Fig. 13, so the description is omitted. On the other hand, when stopping the system such as the main WS 20, the procedure shown in steps S 1601 to 16 17 in FIG. 16 is performed. In Fig. 14, the shutdown sequence between the start / stop controller 10 and the main WS 20 is performed via LAN, while in Fig. 16, the shutdown sequence is used as the RS 2 The difference is that this is done via 32C. Since other flows are the same, duplicate description will be avoided here. However, in the present embodiment, for example, some failure occurs in the communication channel 50, and the shutdown sequence via the LAN becomes impossible. In this case, the same processing can be performed by the backup communication path. Therefore, sufficient system security can be ensured and 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. 17, the WS 71 of the LAN system 2 passes through the modem 72, the public line 65, and the modem 62, and further passes through the start / stop controller 10 through. Data access to the main WS 20 is possible through the LAN (communication path 50). In this case, the start / stop controller 10 converts the RS232C protocol into a LAN protocol (such as TC PZ IP) on the LAN system 1, or conversely converts the LAN protocol on the LAN system 1 into the RS2 3 Execute the gateway function that automatically converts to the 2C protocol.

In the case of the above embodiment (Fig. 12), WS 71 of LAN system 2 After the main WS 20 was started by the start / stop controller 10 via the system 62 and the system was started, this time it was necessary to switch to another modem 63 and access the data to the main WS 20. If the start / stop controller 10 is provided with a gateway function as in the embodiment, the main WS 20 can be accessed via the start / stop controller 10 directly via the LAN. However, the modem 63 required in FIG. 12 becomes unnecessary, which is advantageous in terms of system cost.

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

FIG. 18 shows a main part of a LAN system constructed using a start / stop control device according to another embodiment of the present invention. This LAN system consists of 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 HUB. It is composed of a start / stop control device 110, a PC 132, a network server PC 133, etc., connected to a communication path 150 via a 131.

Start stop control apparatus 1 1 0 includes an output available-for AC connector to P ₇ an AC voltage by receiving power supply from a commercial power supply, 8 channel and a digital input port of 8-channel digital output port D. of And a serial port S. Of k C connector, and the P _2, PC 1 3 2 corresponding to each power cord of the server PC 1 3 3 are connected, in correspondence with each of the P _3, P _4, another PC 13 8 and 13 9 power cords are connected respectively. Also, P _5, Robeta. In [rho _7, corresponding to each of the printer 1 3 5, the copying machine 1 3 6 and electric heat one motor 1 4 0 are connected. Then, each of these PC and electric equipment is start stop control apparatus 1 1 0 AC connector [rho, powered from ～Ro _7, is adapted to operate.

Start stop control apparatus 1 1 0 may further also have a HUB function, modular connector Μ] To support this HUB function, and a M _2. Here, the above-mentioned PC 13 8 and PC 13 9 which receive power supply from the start / stop control device 110 are connected to the communication path 150 via the modular connectors ， and M _2. It has become.

The start / stop controller 110 responds to a start request or a stop request sent from the PC 120 on the LAN via the LAN (via the communication path 150), and the AC connection is made. Ta? , ~ P ₇ Starts or stops power supply to the digital output port D and performs necessary processing. It is designed to be performed using. Here, the processing required to start or stop the power supply includes, for example, processing for causing the server PC 133 to perform a network shirt down processing, and processing for the heater circuit and the cooling fan in the electric heater 140. This is to perform processing for providing a time difference in operation. 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 controller 110 is a LAN controller 1 serving as a communication interface connecting the CPU 111 controlling the operation of the entire device and the communication path 150. A ROM 112 for storing a program that governs the operation of the device, a RAM 114 for a memory, and a non-volatile memory 115 for storing various parameters related to the operation of the device. An input / output controller 1 16 that interfaces various input / output signals is provided. These are interconnected by an internal bus 109. Here, the LAN controller 112 corresponds to the communication path connecting means in the present invention, and the CPU 111 corresponds to the auxiliary processing means in the present invention.

The start / stop control device 110 also includes a noise filter 119 whose one end is connected to a commercial power supply. The other end of the noise filter 1 1 9, the connection AC connector P through a relay one contact is connected to a to P _4, AC connector [rho ₅ via the relay contact R, a, [rho _beta, the [rho ₇ It is supposed to be. The relay contacts R,, _Rb are controlled to open and close by a relay drive signal R output from the input / output controller 1 16 in accordance with an instruction from the CPU 111. The relay contacts R,, _Rb can be replaced by semiconductor switches. Start-stop control equipment 1 1 0 also includes relay one contact R,, R _b and Baipasusu switch SWi disposed in parallel, with the SW _2, which enables the opening and closing operation by manually if necessary. Furthermore, starting and stopping the controller 1 1 0 modular connector, PC 1 3 8 which is Sejju to M _2, 1 3 9 of the LAN signal exchanged between the (1 8) and the channel 1 5 0 A HUB function unit 118 that performs waveform shaping and amplification is provided.

The input / output controller 1 16 is a port that outputs the relay drive signal R, A serial port S that supports S232C and a digital output port D that can output 8-channel digital signals (Doi-Doe). If, Digitally Le signal DH ~ D ₁₈₎ capable of receiving a digital input port D of 8 channels, and a city. Next, the operation of the start / stop control device 110 configured as described above will be described.

FIG. 20 shows an operation when the PC 120 on the LAN controls the start / stop controller 110 via the LAN. First, the processing at the time of startup will be described. When the PC 120 sends a start request command to the start / stop control device 110 (step S 2 0 1), this command is transmitted via the communication channel 150 to the start / stop control device 1 1 0 received by CPU 111.

The CPU 111 analyzes the fetched command contents and confirms that this is a system start request (step S2002), and transmits a start request acceptance confirmation message to the PC via the communication path 150. Send to 120. Upon receiving this, the PC 120 confirms that the activation request has been accepted.

Next, the CPU 111 of the start / stop controller 110 performs power-on control for outputting the relay drive signal R via the input / output controller 116 and closing the relay contacts R, _Rb. performed (step S 2 0 0 3), to start the supply of power from the AC connector Ρ! ~Ρ ₇ (step S 2 0 0 4). As a result, the power of the server PCs 13 3, 13 8, 13 5, etc. is turned on (step S 2 0 5), and the network communication function of the server PC 13 3 is also turned on. to start.

After starting the power supply to the server PC 13 33, etc., the start / stop controller 110 notifies the fact via the LAN (step S206). The PC 120 confirms the completion of the system startup based on the notification (Step S207). The system start-up notification may be made not only to the PC 120 but also to another personal computer (not shown) connected to the communication path 150 and already operating. In this case, 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 or lighting of a lamp, or a method using a pocket bell, not via the LAN.

Next, processing at the time of stoppage will be described. When a stop request command is sent from the PC 12 0 to the start / stop control device 110 (step S 2 101), this command It reaches the start / stop control device 110 via 50 and is received. When the CPU 111 of the start / stop control device 110 confirms that this is a stop request (step S 2 102), the CPU 111 sends a stop request acceptance confirmation message via the communication path 150. To the PC 120, and the PC 120 confirms that the stop request has been accepted. Next, the CPU 111 of the start / stop controller 110 is connected to the digital output port D by the input / output controller 116. The channel D ₀₁ of the on state (scan Tetsupu S 2 1 0 3). Server PC 1 3 3, when Channel D ₀₁ from start stop control apparatus 1 1 0 is turned on, verify that the shutdown request (Sutetsu flop S 2 0 0 4), network Bok work end processing And the like (Step S2105). This shutdown process is an essential incidental process that must be executed when the PC 120 terminates the network interface function.

When the server PC 133 completes the shutdown process, it turns on the channel Du of the digital input ports of the start / stop controller 110 (step S2106). Accordingly, the start / stop control device 110 confirms that the shirt down process has been executed (step S210), and after a predetermined time has elapsed (step S210), the start-stop control device 110 is turned on. relay driving signal R by Li, single contact R from the output controller 1 1 6, to open the Rb, stops the power supply from the AC connector to P ₇ (step S 2 1 0 9). As a result, the power of the server PC 133 is turned off (step S2110). After stopping the power supply, the start / stop control device 110 notifies the power supply stop via the LAN (step S2111). Upon receiving the notification, the PC 120 confirms that the power line has stopped running (step S2117).

In this way, when starting and stopping the network system, the system administrator in another location does not need to go to the server PC 133 to perform the troublesome shutdown processing extremely easily. be able to. Of course, any personal computer that can operate on the LAN can be remotely started and stopped from other personal computers.

Although FIG. 20 mainly describes the server PC 133, other electric devices

(Printer 13 5, Copier 13 6, Electric heater 140, etc.) Needless to say, this is sometimes done. In this case, in the case of a device such as the electric heater 140 in which it is necessary to operate the cooling fan for a certain period of time even after the heater circuit is shut off when the device is stopped, for example, as shown in FIG. Digital output port D. D _{0 2} is first cut off only the heater circuit using one of, after the accordingly, it is sufficient to cut off the power supply from the AC connector P _7.

The digital output port D is also used when starting or stopping the printer 135 or copier 1336. It is possible to perform necessary additional processing such as pre-heat treatment using the digital input port D〗.

As described above, in the present embodiment, not only the start control of the electric device at a remote place via the LAN but also the necessary additional processing can be performed, and the operation management of the system becomes easy. Further, in the present embodiment, since the start / stop control device 110 has a HUB function, as shown in FIG. 18, the start / stop control device 110 is connected to one modular connector of the HUB 131, despite consuming M _5, modular connector M i, M ₂ is provided new by starting and stopping the controller 1 1 0 itself. Therefore, by installing the start / stop control device 110, it is possible to avoid a disadvantage in system construction that the number of modular connectors of the existing HUB is insufficient. Although the additional processing is performed using the digital output port D, especially for the server PC 133, the start-stop controller 110 transmits such additional processing via LAN via the LAN. Communication may be performed.

Further, in the present embodiment, remote control is performed from PC 120 on the LAN via the LAN. In addition, remote control may be performed via a public line from a remote personal computer or the like not on the LAN. It is also possible. For example, Figure 2

As shown in Fig. 1, 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 146 is also connected to the public line 145 via the modem 147. Connect to public line 1 4 5. Then, by sending a start / stop command to the start / stop controller 1 10 from the PC 1 46 via the modem 1 4 7, the public line 1 4 5 and the modem 1 4 1, the same as in FIG. Easy start / stop control Can be.

As described above, the present invention has been described with reference to some embodiments. However, the present invention is not limited to only these embodiments, and can be variously modified within an equivalent range. For example

However, in each of the above-described embodiments, the processing for shutting down the main WS and the server PC has been described as an example of the processing accompanying the power shutdown. However, the present invention is not necessarily limited to the control related to power on / off. However, it can also be applied to wider control applications. For example, it is possible to remotely control various types of experimental equipment using digital input / output signals. In this case, it is possible to output a relay drive signal instead of a digital signal and directly drive a relay contact provided in an external electric device.

Claims

The scope of the claims

1. Communication path connection means for connecting to a data communication path as a component of a oral area network;

Power supply control means for turning on or off the power of a predetermined electrical device, at least in response to a command transmitted through the communication path connection means;

Supplementary processing means for performing a prescribed supplementary process accompanying the turning on or off of the power of the electric device by the power control means;

A start / stop control device having a network function, comprising:

2. The electric device is an information processing device connected to the data communication path, and the supplementary processing means performs a predetermined pre-stop required before the information processing apparatus stops via the data communication path. 2. The start / stop control device having a network function according to claim 1, wherein a predetermined post-start process required after starting the process or the information processing device is performed.

3. The ancillary processing means 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,

The start-up having a network function according to claim 2, wherein the power supply control means stops power supply to the information processing apparatus in response to a completion notification of the end processing from the information processing apparatus. Stop control device.

4.

A schedule management means for storing the set start time or stop time and requesting start or stop when the set time comes,

2. The start / stop control device having a network function according to claim 1, wherein said power supply control means and said auxiliary processing means operate in response to a command from said schedule management means.

5. In addition,

The set start time or stop time is memorized, and when the set time comes, Equipped with schedule management means for requesting operation or suspension,

3. The start / stop control device having a network function according to claim 2, wherein said power control means and said auxiliary processing means operate in response to a command from said schedule management means.

6. In addition, it has a receiving means for receiving an external analog signal or digital signal,

The start / stop control device having a network function according to claim 1, wherein the power supply control means and the auxiliary processing means operate in response to an analog signal or a digital signal received by the reception means. .

7. In addition, a receiving means for receiving an external analog signal or digital signal is provided.

The start / stop control device having a network function according to claim 2, wherein the power supply control means and the auxiliary processing means operate in response to an analog signal or a digital signal received by the reception means. .

7. The start / stop control device having a network function according to claim 6, wherein the digital signal received by the receiving means is a start signal or a stop signal from a manually operable start / stop switch.

9. The start / stop control device with a network function according to claim 7, wherein the digital signal received by the receiving means is a start signal or a stop signal from a manually operable start / stop switch.

10. The network function according to claim 6, wherein the digital signal received by the receiving means is a power failure signal from an uninterruptible power supply that backs up a power supply of the electric device at the time of power failure. A start / stop control device having:

11. The network function according to claim 7, wherein the digital signal received by the receiving means is a power failure signal from an uninterruptible power supply that backs up a power supply of the electric device at the time of power failure. Start / stop control device.

12. The start / stop control device having a network function according to claim 6, wherein the analog signal or the digital signal received by the receiving means is a state detection signal generated in response to an external event. .

13. The start / stop control device having a network function according to claim 7, wherein the analog signal or the digital signal received by the receiving means is a state detection signal generated in response to an external event. .

1. In addition, it is equipped with off-network communication means for connecting with other devices not included in the own network,

2. The power supply control means and the auxiliary processing means operate in response to a command sent from the other device via the off-network communication means. A start / stop control device having a network function.

15 5. In addition, it is equipped with an off-network communication means for connecting to other devices not included in the own network.

3. The apparatus according to claim 2, wherein the power supply control means and the auxiliary processing means operate in response to a command sent from the another device via the off-network communication means. A start / stop control device having a network function.

1 6.

A network external connection means for connecting with other devices not included in the own network,

Protocol conversion means for performing bidirectional protocol conversion on communication data exchanged between the own network and the other device via the off-network connection means;

With

The start / stop control device having a network function according to claim 1, wherein the other device can directly access a device in the own network.

1 7.

Off-network connection means for connecting to other devices not included in the own network;

Protocol conversion means for bidirectional protocol conversion of communication data exchanged between the own network and the other device via the off-network connection means; With

3. The start / stop control device having a network function according to claim 2, wherein the other device can directly access a device in the own network.

1 8.

A backup communication unit for connecting to the information processing apparatus, wherein the additional processing unit can execute the pre-stop processing or the post-startup processing by the backup communication unit. The start / stop control device having a network function according to claim 2.

19. The network processing function according to claim 1, wherein 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. Start / stop control device.

20. The network function according to claim 2, wherein 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. Start / stop control device.

21. The start / stop control device having a network function according to claim 1, wherein the power supply control means turns on / off the power of the plurality of electric devices in a predetermined order and time difference.

22. The start / stop control device having a network function according to claim 2, wherein the power supply control means turns on or off the power supply of the plurality of electric devices in a predetermined order and time difference. .

23. The start / stop control device having a network function according to claim 1, further comprising a concentrator function unit for the data communication path.

24. The start / stop control device having a network function according to claim 2, further comprising a concentrator function unit for the data communication path.

25. In addition to the power control means, a manual power control means capable of manually turning on or off the power of the electric device is further provided. 4. The start / stop control device having the network function according to any one of 4.