JP3414650B2 - Control target device control system capable of managing computer power and computer power management device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to power supply to controlled equipment and a computer connected to the equipment, and more particularly to control of an uninterruptible power supply.

[0002]

2. Description of the Related Art Today, printing machines are becoming computerized, and it has been proposed that a general-purpose personal computer be connected to the printing machine to control the printing machine in order to enhance the control content and perform data communication. In this case, the power of the personal computer is supplied from an outlet (female) provided in the printing machine.

In a printing machine to which such a personal computer is connected, when the control equipment of the printing machine is not in good condition, the operator turns the main switch from the on state to the off state and then immediately turns it on again to turn on the printing machine. Attempt to restore the operation of the control device. Also, when performing maintenance work,
An operator or a service person tries to restore the operation of the printing machine by turning the main switch from the ON state to the OFF state, then performing maintenance work for a short time, and then immediately turning it on again.

Since the personal computer receives power from the outlet provided in the printing machine, the computer is initialized by performing the intermittent process of the main switch. Therefore, even when there is a problem in the computer system, the operation of the printing press can be restored by the initialization in this way.

[0005]

However, the operating system of a personal computer has become more sophisticated, and some computers require a shutdown process to turn off the power of the personal computer. In this case, if the main switch is intermittently processed as described above, there is a problem that the personal computer does not end in a normal state, an error message is displayed when the personal computer starts up next time the power is turned on, and the personal computer is not properly initialized.

In order to solve such a problem, it is possible to supply power to the personal computer independently of the main switch. However, if this is done, the operator must perform two types of processing: initialization of the personal computer and initialization of the printing press. Further, in order to ensure the safety of maintenance performed by an operator or a service person, it is desirable that no power is supplied to the inside of the printing machine when the main switch of the printing machine is turned off.

The above-mentioned problem occurs not only in the printing machine but also in the controlled equipment controlled by the computer which requires the shutdown processing.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a power management device which can easily manage the power supply to a controlled device and a computer connected thereto.

[0009]

In the control target device control system capable of managing the power supply of a computer or the power management device for a computer according to the present invention, the uninterruptible power supply device supplies power from the built-in power source. When the power supply is switched to the supply state, a disconnection processing instruction for making the computer power-off possible is output to the computer, and after a predetermined time has elapsed after the power-off processing instruction is output, the uninterruptible power supply. Stopping the power supply from the supply device to the computer,
After the power supply to the uninterruptible power supply is stopped,
Judging whether or not AC power is being supplied from the device
If you are receiving this AC power,
Power is supplied to the computer to turn it on.
If you are not receiving this AC power,
From the uninterruptible power supply to the computer
Stop the output of the generated AC power.

Therefore, a computer is connected through the uninterruptible power supply device to a control target device having a power supply port capable of supplying AC power to the outside in conjunction with the main power switch, and power is supplied to the computer. If the main power switch is turned off and on for maintenance or the like when receiving the information, the computer can be automatically set to the initial state after the shutdown processing.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a power management device according to the present invention will be described with reference to the drawings.

FIG. 1A shows a functional block diagram of a controller 1 which is a power management device. A device to which the controller 1 is connected will be briefly described.

The controlled device 15 exchanges data such as control commands with the computer 13. The control target device 15 has a built-in supply port (outlet) capable of supplying AC power to the outside (not shown), and AC power is supplied from this outlet to the UPS 11, which is an uninterruptible power supply. The UPS 11 supplies the AC power as it is to the computer 13 while the AC power is being supplied from the control target device 15. On the other hand, when the supply of the AC power from the control target device 15 is stopped, the UPS 11 converts the output of the built-in battery into AC and supplies the AC power to the computer 13. The controller 1 is provided between the UPS 11 and the computer 13. Controller 1
Includes a detection unit 3, a disconnection processing command output unit 5, and a disconnection recovery unit 7.

The detecting means 3 detects when the UPS 11 is switched to the power supply state by the built-in power source.

Based on the detection result, the disconnection processing command output means 5 outputs a disconnection processing command to the computer 13 to bring the computer 13 into a power-supply disconnectable state. As a result, the computer 13 executes processing for bringing the power supply into the power-off possible state.

The disconnection recovery means 7 stops the power supply from the UPS 11 to the computer 13 when a predetermined time elapses after the disconnection processing command is output. In this way, if the operator disconnects the main switch when the work is completed,
The power supply to the computer 13 is stopped after the power supply to the computer 13 is also set to the power-off possible state. After the power supply is stopped, the detecting means 3
It is determined whether the UPS 11 is supplied with AC power from the control target device 15. UPS 11 is control target device 1
When the AC power is supplied from 5, the disconnection recovery means 7 restores the power supply from the UPS 11 to the computer 13 in order to restore the power supply to the computer. As a result, when the operator turns off the main switch and immediately turns it on, the computer 13
Can be turned off again and then returned again.

On the other hand, if the UPS 11 is not supplied with electric power from the controlled device 15, the disconnection recovery means 7 operates as U
An instruction to stop the power supply from the built-in battery is output to the PS 11. As a result, the UPS 11 stops the power supply.

As described above, in the present embodiment, the disconnection recovery means 7 stops the power supply to the computer 13 and then, if the UPS 11 is supplied with the AC power from the controlled device 15, the AC power is supplied. To return. Therefore, the operator turns off the main switch of the controlled device.
By simply turning it on, the computer 13 can be initialized and started up after the computer 13 is normally terminated.

In FIG. 2, the controller 1 shown in FIG.
An example of the hardware configuration of the controller 40 realized using U is shown. The controller 40 is the CPU 23, R
An OM 25, a RAM 27, a power supply unit 31, a relay 33 and a bus line 29 are provided.

A relay 33 and a power supply unit 31 are connected to the bus line 29 via an I / O 30. The power supply unit 31 A / D-converts the alternating current supplied from the UPS 11 and supplies necessary power via the I / O 30. The relay 33 performs the connection / disconnection process of the power supply line supplied from the UPS 11 to the personal computer 56.

The CPU 23 controls each unit via the bus line 29 according to the program stored in the ROM 25.

Next, the programs stored in the ROM 25 will be described with reference to FIG. In the following, a case where the operator turns off the main switch of the printing machine 55, which is a control target device, for maintenance immediately after turning it on will be described as an example.

When the operator turns off the main switch of the printing press 55, the power supply to the UPS 11 is stopped. Therefore, the UPS 11 switches to the inverter operation that outputs AC power. As a result, the AC power is continuously supplied to the personal computer 56. Since the UPS 11 outputs an inverter operation signal indicating that the inverter is in operation, the CPU 23 of the controller 40 determines whether or not this signal is sent via the I / O 30 (step ST1 in FIG. 3).

In this case, since the inverter operation signal is given, the CPU 23 outputs a shutdown command to the personal computer 56 via the I / O 30 (step ST
3). When the personal computer 56 receives the shutdown command,
Performs shutdown processing.

The CPU 23 of the controller 40 determines whether or not a predetermined time has passed (step ST5). In this embodiment, 40 seconds is adopted as the predetermined time.
After a lapse of a predetermined time, the CPU 23 turns off the relay 33 (step ST7). That is, the CPU 23
When PS11 is switched to inverter operation, PC 5
A shutdown command is output to 6 and the AC power supply to the personal computer is stopped after a predetermined time has elapsed. In this embodiment, the predetermined time is 40 seconds.

Next, the CPU 23 determines whether the UPS 11 is in the inverter operation (step ST).
9). Specifically, it can be determined by whether or not the inverter operation signal is given. In this case, the operator turns on the main switch immediately after turning it off.
In S11, the inverter operation is stopped and the inverter operation signal is not output. Therefore, the CPU 23 turns on the relay 33 (step ST13). As a result, power is supplied to the personal computer 56 and the personal computer 56 starts up.

In this way, after the operator turns off the main switch of the printing press 55 for maintenance,
If you turn it on immediately, you can boot your computer normally.

When the operator turns off the main switch due to a power failure or the completion of work, the UPS 11 remains the inverter operation signal. Therefore, step S
From T9, the process proceeds to step ST11, where the CPU 23
The inverter output stop signal is output to S11. As a result, the UPS 11 stops the inverter output. As a result, the battery of the UPS 11 will not be uselessly discharged.

Since the controller 40 is supplied with power from the UPS 11, even if the main switch of the printing machine 55 is cut off, the controller 40 can perform the above processing by the inverter output of the UPS 11.

If the power supply is simply turned off after the personal computer is shut down during a power failure, UPS1
Only one is enough. However, the UPS 11 alone does not initialize the personal computer when the off / on process is performed for maintenance. This is because the UPS 11 continues to supply power to the personal computer 56.
By thus providing the relay 33 and performing the processing shown in FIG. 3, the personal computer 56 can be put into the initialized state after the shutdown processing.

In this embodiment, a shutdown command is output to the personal computer, and after a predetermined time has elapsed, the relay 3
3 is off. However, the relay 33 may be turned off upon receiving a shutdown processing end signal from the personal computer 56.

In the present embodiment, in order to realize the function shown in FIG. 1, the CPU 23 is used and this is realized by software. However, some or all of them may be realized by hardware such as a logic circuit.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a controller 1 according to the present invention.

FIG. 2 is a diagram showing an example of a hardware configuration in which a controller 1 is configured by a CPU.

FIG. 3 is a flowchart of a control program of CPU 23.

[Explanation of symbols]

3 ... Detection means 5: Cutting processing command output means 7 ... Cutting recovery means 11 ... UPS 13 ... Computer 15 ··· Controlled device 33 ... Relay

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-9-322428 (JP, A) JP-A-9-205739 (JP, A) JP-A-10-228337 (JP, A) JP-A-10- 207586 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B41F 33/00 B41J 29/38 G06F 1/00 G06F 1/26

Claims (2)

(57) [Claims] 1. A) a control target device controlled by a computer and capable of supplying AC power to the outside; B) outputting AC power when the AC power is supplied from the control target device; An uninterruptible power supply that generates AC power by the built-in power supply and outputs the generated AC power when AC power is not being supplied from the control target device, C) Power supply that executes the processing of c1) to c3) Management device, c1) when the uninterruptible power supply device switches to a power supply state by the built-in power source, outputs a disconnection processing instruction for making the computer power-off possible to the computer, c2 ) After a predetermined time has elapsed after the power-off processing command was output,
Stopping the power supply from the uninterruptible power supply to the computer, c3) after stopping the power supply to the computer, the uninterruptible power
The power supply receives AC power from the controlled device.
If this AC power is given,
If this is the case, supply this AC power to the computer before
Start up the computer, and receive this AC power
If not, use the UPS from the UPS.
A control target device control system capable of managing the power supply of a computer , comprising: stopping the output of the generated AC power to the computer. 2. When the AC power is supplied from the outside, the AC power is output, and when the AC power is not supplied, the AC power is generated by the built-in power source and the generated AC power is generated. Is a device that is connected to an uninterruptible power supply device that outputs, and that manages the power supply of a computer that controls a controlled device, when the uninterruptible power supply device switches to a power supply state by the built-in power supply. Outputs, to the computer, a disconnection processing command for making the computer power-off possible, and outputs a power from the uninterruptible power supply device to the computer after a predetermined time elapses after the power-off processing command is output. After stopping the power supply and stopping the power supply to the computer, the uninterruptible power supply
The device is receiving AC power from the controlled device.
If this AC power is given,
Supplies this AC power to the computer to
Start up the computer and not receive this AC power.
If it is not,
A power management apparatus for a computer, characterized in that the output of the generated AC power to the data is stopped .