JP2000267716A - Computer device for production facility and method for restoring production facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a computer device for production facility which can be quickly restored even when a failure of a hard disk drive device is generated. SOLUTION: This computer device 1 is provided with an arithmetic unit A, an input device B for inputting arithmetic data, a display device C for displaying the arithmetic data, and an HDD device D for storing an arithmetic processing program to be executed by the arithmetic unit A or the arithmetic result. In this case, the HDD device D is provided with a basic drive unit and a drive unit for back-up which are constituted so that the contents can be held so as to be the same, and the HDD device D side is provided with a drive unit selecting circuit 2 so that the arithmetic unit A can be selectively connected one of the drive units in the HDD device D. Also, a switch for switching the drive unit selecting circuit 2 is provided outside the computer device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of restoring a computer or a production facility provided in a production facility such as a component mounter, a component transporter, a reflow device, and more particularly, a failure such as a crash in a hard disk drive. The present invention relates to a computer device that can be restored even in a short time.

[0002]

2. Description of the Related Art A conventional computer system for production equipment is
An example for a component mounter will be described with reference to FIGS.

In the component mounting machine 100 shown in FIG.
Reference numeral 101 denotes a component mounting unit, 102 denotes a component supply unit, 103 denotes a board transport unit, B denotes an input device, C denotes a display device, and 1 denotes a computer device arranged in the machine body of the component mounter 100. The component supply unit 102 includes a plurality of rows of parts cassettes, and is configured so that a parts cassette having desired electronic components moves to a component extracting position. The board transport unit 103 moves the printed board to the XY position at the component mounting position.
The printed circuit board is carried out from the XY table to the outside after being loaded on the table and mounted with electronic components. The component mounting unit 101 sucks and takes out the electronic component from the parts cassette moved to the component take-out position, moves to the mounting position on the printed board, and mounts the electronic component on the printed board positioned by the XY table. A mounting head and a recognition device for component recognition are provided.

The computer 1 has a main function of processing mounting operations and the like, a data processing function such as input / output / editing of mounting data, a machine operation status, the number of production results, and the like.
It has a production management function to manage the parts adsorption rate and the like.
The computer device 1 utilizes the graphic user interface (GUI) function and contributes to the realization of a simple operation environment for the operator together with the input device B and the display device C. Further, the computer device 1
The error logging data and the like for recording the abnormal state of the machine and the error stop state and shortening the recovery time when a machine trouble occurs are stored and used in the hard disk drive.

Since the computer device 1 has the functions as described above, it is possible to reduce the time required to switch models, minimize the machine stop time when a machine error occurs, and realize a good product.
The number of production per unit time is maximized.

In FIG. 7, a computer device 1 includes an arithmetic device A, an input device B for inputting arithmetic data, a display device C for displaying arithmetic data, and a hard disk drive device for storing arithmetic processing programs and arithmetic data. E). The signal transmission line n between the arithmetic unit A and the HDD E is composed of a data bus for transmitting and receiving data, an address bus for designating data read / write addresses, and a master / slave selection signal of the drive unit. .

Referring to FIG. 8, which shows a circuit diagram of signal transmission of the computer 1, at least two hard disk drives, a master drive unit 4c and a slave drive unit 4d, are usually provided in the HDD device E. A hard disk control circuit 3 inside the arithmetic unit A;
Each control circuit 4c in the master drive unit 4c and the slave drive unit 4d inside the HDD device E
1, 4d-1 are connected by a signal transmission line n to read and write data in the drive units 4c, 4d.

The selection of the master / slave in the HDD E from the viewpoint of the arithmetic unit A is determined by the master drive unit 4
This is carried out by setting the master / slave selection circuits 4c-2 and 4d-2 in the slave drive unit 4d and by setting the selection switch in the master / slave selection circuit to short or open.

FIG. 9 shows the contents of programs stored in the master drive unit 4c and the slave drive unit 4d in the HDD device E. The master drive unit 4c includes an operating software program (including a device drive program, hereinafter abbreviated as an OS program) necessary for starting the computer system.
An application program (hereinafter abbreviated as APL program) describing computer processing contents, and an AP
Processing data of the L program (mounting data, production management information data, error logging data, and the like) are stored. The slave drive unit 4d stores an APL program that cannot be stored in the master drive unit 4c and processing data of the APL program.

If a storage area for all the APL programs and the processing data of the APL programs can be secured in the master drive unit 4c, the slave drive unit 4d is not required, and can be constituted only by the master drive unit 4c.

[0011]

As described above, when a computer device is used as part or all of a control device of a production facility such as a component mounter for mounting an electronic component at a predetermined location on a printed circuit board. In general, the installation location of the computer device is usually inside the machine body due to the miniaturization of the production equipment, and the mounting speed of the component mounting machine is becoming increasingly faster. In general, the acceleration / deceleration operation becomes large and the motor capacity increases. In many cases, a component mounter or the like is used continuously for 24 hours a day, and the computer device constantly reads and writes while the machine is operating.

When the computer device is installed in the production facility as described above, an OS program necessary for starting up the computer system and an AP describing the contents of computer processing are provided.
The HDD device that stores the processing data of the L program and the APL program is affected by vibration from machines, power failure due to lightning, noise from motors and peripheral equipment, etc.
There is a risk that the computer device cannot be started normally due to a mechanical failure of the HDD device itself or destruction of data in the HDD device.

The recovery requires a great deal of time because it is necessary to prepare a normal master drive unit in which the OS program, the APL program, and the processing data of the APL program are stored in advance and replace it with a failed master drive unit. There was a problem. More specifically, for example, in a component mounter, when the HDD device fails, the computer device is pulled out of the machine, the cover of the computer device is opened, the failed HDD device is removed, a new HDD device is attached, and the OS program is executed. It is necessary to install the APL program, the processing data of the APL program, and the like in the HDD device, and this recovery work requires about 12 hours. Further, when the processing data is not backed up from the machine, it takes time to create mounting data and the like, and in some cases, about 24 hours or more.

In view of the above-mentioned conventional problems, the present invention has
A main object of the present invention is to provide a computer device for a production facility that can realize recovery in a short time when a failure occurs in a D device.

[0015]

A computer device for a production facility according to the present invention is a computer device arranged in a machine body of the production facility, comprising a computing device, an input device for inputting computation data, a computation program, A hard disk drive device for storing operation data, wherein the operation device executes processing according to an operation processing program in the hard disk drive device and stores the operation result in the hard disk drive device; And two or more drive units having a backup drive unit, and the basic drive unit includes:
The operating software program, the application program, and the processing data of the application program are stored, and the contents of the basic drive unit are duplicated in the backup drive unit so that the contents of the basic drive unit are completely the same including the operating software program. The result of the arithmetic processing is programmed as new processing data to be written to both the basic drive unit and the backup drive unit, and in order to selectively connect the arithmetic unit and one of the drive units in the hard disk drive, A drive unit selection circuit is provided on the hard disk drive device side, and a switch for switching the drive unit selection circuit is provided outside the computer device.

According to the above arrangement, by switching a switch provided outside the computer for the production equipment, for example, on the front of the computer, the current drive unit specified by the arithmetic unit is disconnected from the HDD in the HDD. A drive unit can be easily changed to another normal drive unit in a short time. Further, since the contents of the basic drive unit and the contents of the backup drive unit are kept the same, it is possible to restart by the OS program of the backup drive unit and to continue the processing by the APL program and the processing data of the APL program. Also, AP
Since the latest processing data up to the stoppage due to the failure is recorded in the processing data of the L program, the processing can be immediately and continuously performed.

If the computer for the production equipment constitutes a part or all of a control device in a component mounting machine for mounting components on a printed circuit board, vibration from the machine, power failure due to lightning, etc. Even if the HDD device breaks down due to the noise from the motor or peripheral equipment, it can be mounted simply by switching the switch without changing the software settings, changing the APL program, or replacing the HDD device. The operation can be continued. For example, in the case of the component mounter, the recovery operation for the HDD device failure, which has conventionally taken about 12 to 24 hours, is reduced to 10 to 24 hours.
It can be reduced to a short time of 30 minutes.

It should be noted that the present invention can be applied to computer devices for uses other than those for production facilities.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment in which a computer for production equipment of the present invention is applied to a control device of a component mounting machine will be described below with reference to FIGS. 1 to 6 and FIGS.

FIG. 10 shows a component mounter 100, in which a computer device 1 is disposed in the machine body. Since the configuration of the main part of the component mounter 100 has already been described, the description thereof will be omitted.

FIG. 1 shows the basic configuration of the computer device 1, which includes an arithmetic device A, an input device B for inputting arithmetic data, a display device C for displaying arithmetic data, and stores an arithmetic processing program and arithmetic data. HDD device D and H
And a drive unit selection circuit 2 for selecting one of the drive units in the DD device D.

As shown in FIGS. 11 and 12, a switch 51 for switching the drive unit selection circuit 2 is provided.
Is installed on the front of the computer device 1. More specifically, the switch 51 is attached to a lower part of the front surface of the computer device 1, that is, a position in the depth of a recess 56 formed in a lower part of the front panel 55. By attaching the switch 51 to the lower part of the front surface of the computer device 1 as described above, when the front door 104 of the component mounter 100 is opened, the switch 51 can be located immediately in front of the door. Restoration work can be performed easily. On the other hand, by disposing the switch 51 at a position deep inside the lower part of the front surface of the computer device 1, it is possible to prevent switching of the selection circuit due to an erroneous operation by the operator and trouble of the machine due to this. That is, by arranging the switch 51 at the above position, the switch 51 can be switched only by using a simple tool such as a screwdriver, thereby preventing a worker from inadvertently touching the switch 51. This prevents the operator from performing an erroneous operation. Since this switch is used when a failure occurs in the HDD device D, when the computer device 1 is installed at a position in the machine body of the component mounting machine that cannot be easily reached, the switch is used. Only one of them may be arranged on the outer surface of the machine body which is easy to operate.

The front panel 55 of the computer 1
Indicates the HDD drive device D currently in use.
A pair of display units 52 and 53 and an indicator 54 for indicating that copying or writing to the HDD drive D is in progress are provided. One of the display units 52 indicates that the basic drive unit 4a is in use, and the other display unit 53
Indicates that the backup drive unit 4b is being used by lighting each of them. For this purpose, the switch 51 has a double structure,
By reading one of the contacts with the input device B of the computer device 1, the currently used HDD drive device D is displayed on the display units 52 and 53. In addition, the indicator 54 can prevent an operation after the switch 51 is accidentally switched during writing to the HDD drive device D.

FIG. 2 is a circuit diagram showing the configuration of signal transmission of the computer device 1, and at least two or more drive units are usually connected to the HDD device D. In the present embodiment, two drive units, one basic drive unit 4a and another backup drive unit 4b, are provided. Arithmetic unit A and HDD
The signal transmission line n to the device D is composed of a data bus for transmitting and receiving data, an address bus for designating data read / write addresses, and a selection signal for selecting one of the drive units.

The hard disk control circuit 3 in the arithmetic unit A and the basic drive unit 4a in the HDD D
Each control circuit 4 in the backup drive unit 4b
a-1, 4b-1 are connected by a signal transmission line n,
Data is being read from or written to the drive unit.

Basic drive unit 4 in HDD device D
a, selection terminal 4 of backup drive unit 4b
a-3 and 4b-3 are connected to selection terminals 2-1 and 2-2 in the drive unit selection circuit 2, respectively.
The selection terminals 2-1 and 2-2 are contacted so as to operate alternately, and can be set by a changeover switch 51 of the drive unit selection circuit 2.
By setting 1 to the basic drive unit 4a, the current drive viewed from the arithmetic unit A is set to the basic drive unit 4a, and the changeover switch 51 is set to the backup drive unit 4b, so that the current drive viewed from the arithmetic unit A is set to the backup drive unit. 4b.

The basic drive unit 4a includes an OS program (including a device drive program) necessary for starting up the computer system, an APL program describing the contents of computer processing, and processing data of the APL program (mounting data, production management information data, Error logging data, etc.) are stored in the backup drive unit 4b so that the contents of the basic drive unit 4a are completely the same including the OS program. After the computer system starts, the AP
In the processing of the L program, it is programmed so that the result of the arithmetic processing is written as new processing data to both the basic drive unit 4a and the backup drive unit 4b.

Thus, since the contents of the basic drive unit 4a and the backup drive unit 4b are always kept the same, the drive unit selection circuit 2 sets the basic drive unit 4a in the normal state and the backup drive unit 4b in the case of failure. In either case, the computer device 1 can be started and processed normally.

With the above configuration, the computer device 1 is installed in the machine body of the component mounting machine, and even if a failure occurs in the basic drive unit 4a selected in the HDD device D during normal operation, the program can be changed or changed. Since the backup drive unit 4b can be selected without replacing the drive unit, recovery in a short time can be realized.

FIG. 3 shows a method of storing an OS program and an APL program in the basic drive unit 4a and the backup drive unit 4b. First,
The switch 51 of the drive unit selection circuit 2 on the front of the computer device sets the current drive of the arithmetic unit A to be the basic drive unit 4a, and stores the OS program and the APL program in the basic drive unit 4a. Next, the contents of the basic drive unit 4a are copied to the backup drive unit 4b, including the OS program, so that they are all the same.

FIG. 4 shows program contents stored in the basic drive unit 4a and the backup drive unit 4b. The APL program and the processing data of the APL program including the OS program are stored exactly the same.

With reference to FIG. 5, a description will be given of the normal processing when both the basic drive unit 4a and the backup drive unit 4b operate normally in the above configuration. In this case, the APL after starting the computer
In the processing of the program, the processing result of the APL program is stored as processing data in the basic drive unit 4a and the backup drive unit 4b.

First, the current drive of the arithmetic unit A is changed to the basic drive unit 4a by the drive unit selection circuit 2 provided with the switch 51 on the front of the computer device 1.
Set to be. Next, when the power of the computer device 1 is turned on, the system is started by the OS program, the APL program and the processing data in the basic drive unit 4a. In the processing of the APL program, the processing result is simultaneously written into the basic drive unit 4a and the backup drive unit 4b as processing data.

If there is not enough time for the processing time of the APL program, in the normal processing, the processing result may be written only in the basic drive unit 4a, and may be written to the backup drive unit 4b after a certain period of time.

Next, backup processing in the case where the basic drive unit 4a has failed and switched to the normal backup drive unit 4b will be described with reference to FIG. In this case, the AP after starting the computer
In the processing of the L program, the processing result of the APL program is stored as processing data in the backup drive unit 4b.

First, the drive unit selection circuit 2 on the front of the computer 1 sets the current drive of the arithmetic unit A to be the backup drive unit 4b. Next, when the power of the computer device 1 is turned on, the system is started by the OS program, the APL program and the processing data in the backup drive unit 4b. In the processing of the APL program, the processing results are processed data as backup drive unit 4b.
Is written to.

As described above, at least two or more drive units are provided in advance in the HDD device D, two of which are the basic drive unit 4a and the backup drive unit 4b. The APL program describing the processing contents and the processing data of the APL program are stored so as to be completely the same, and a computer is configured. After the computer system is started, the result of the arithmetic processing is processed data in the processing of the APL program. Is written to both the basic drive and the backup drive, so that the contents of the basic drive unit 4a and the contents of the backup drive unit 4b can always be kept the same.

The setting of the hard disk drive from the viewpoint of the arithmetic unit A is switched from the state of the basic drive unit 4a for the current drive and the state of the backup drive unit 4b for the other one to the switch of the drive unit selection circuit 2 provided on the front of the computer device 1. The current drive is simply the backup drive unit 4b and the other is the basic drive unit 4a without changing the OS program or APL program.
Can be changed.

As described above, according to this embodiment, switching from a failed drive unit to a normal drive unit can be performed by changing software settings or APL programs, or by disassembling a computer device and disassembling the internal device. It can be easily implemented without having to replace the hard disk unit. A computer device is installed in the machine body of the production facility, and even if a failure occurs in the HDD device, it can be recovered in a short time. realizable.

It is preferable that the switching of the drive unit selection circuit 2 in the component mounter 100 be performed at the following timing in each of the following cases.

If a read error occurs due to the life of the HDD device D and the system does not start during the system test when the power of the computer device 1 is turned on, the switch of the drive unit selection circuit 2 is automatically switched to the backup drive unit 4b. The drive unit 4b is switched to read the data from the drive unit 4b.

If data is erroneously read from the HDD device D temporarily due to mechanical vibrations or the like, the computer device 1
The read operation is performed again by the retry function. If the read operation is successful at this time, the possibility that the basic drive unit 4a is broken is small, and the switch of the drive unit selection circuit 2 is set to the basic drive unit 4
In the next production, the data is read from the basic drive unit 4a again.

Since the temperature is low or high (the air conditioner is not operated when the factory is shut down due to a long vacation, the storage temperature of the machine may be low or high). When the reading operation is performed again by the retry function of the computer device 1 and the reading is successful, the possibility that the basic drive unit 4a is broken is low, and the switch of the drive unit selection circuit 2 is held on the basic drive unit 4a side. In the next production, the basic drive unit 4a is read again.

The write error information generated during writing to the HDD device D is left as error logging information and can be notified as a message to an operator, thereby preventing a machine stop due to a failure of the HDD device D beforehand. It becomes possible to do.

The switch 51 of the drive unit selection circuit 2 is not particularly limited to the front surface as long as it is outside the computer device, and may be a side portion or a rear surface of the computer device.

[0046]

According to the present invention, the switch of the drive unit selection circuit provided outside the computer device is switched as described above, so that the current drive unit designated by the arithmetic unit can cause a failure in the HDD device. The drive unit can be easily changed to another normal drive unit in a short time, and the contents of the basic drive unit and the backup drive unit are kept the same. The processing can be continued with the APL program and the processing data of the APL program, and the processing data of the APL program contains the latest processing data up to the stop due to the failure. Can do That.

Further, when this computer for production equipment is applied to a part or all of a control device in an electronic component mounting apparatus for mounting electronic components on a printed circuit board,
Even if the HDD device breaks down due to the effects of vibration from the machine, power failure due to lightning, or noise from the motor or peripheral equipment, change the software settings, change the APL program, or replace the HDD device. The mounting operation can be continued simply by switching the switch without any change.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an embodiment of a computer device according to the present invention.

FIG. 2 is a circuit diagram showing a configuration of signal transmission in the embodiment.

FIG. 3 is a flowchart of a method for storing a program in a hard disk drive in the embodiment.

FIG. 4 is an explanatory diagram of a program storage state of a basic drive and a backup drive in the embodiment.

FIG. 5 is a flowchart of a normal process in the embodiment.

FIG. 6 is a flowchart of a backup process in the embodiment.

FIG. 7 is a block diagram showing a configuration of a conventional computer device.

FIG. 8 is a circuit diagram showing a configuration of signal transmission in a conventional example.

FIG. 9 is an explanatory diagram of a program storage state of a master drive and a backup drive in a conventional example.

FIG. 10 is a schematic perspective view showing a component mounter.

FIG. 11 is a perspective view showing an appearance of a computer device of the present invention.

FIG. 12 is a cross-sectional view illustrating a state in which the computer device of the present invention is mounted on a machine main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Computer device 2 Drive unit selection circuit 4a Basic drive unit 4b Backup drive unit 51 Switch 100 Component mounting machine A Computing device B Input device C Display device D HDD device (hard disk drive device)

Claims (5)

[Claims] 1. A computer device disposed in a machine body of a production facility, comprising: a computing device; an input device for inputting computation data; and a hard disk drive device for storing a computation program and computation data. Is
2. Description of the Related Art In a computer device that executes processing according to an arithmetic processing program in a hard disk drive device and stores an arithmetic result in the hard disk drive device, the hard disk drive device is provided with two or more drive units having a basic drive unit and a backup drive unit. The drive unit stores data for implementing mounting operations, data processing of mounting data, and production management functions, and the backup drive unit is duplicated so that the contents of the basic drive unit are exactly the same. Thereafter, the result of the arithmetic processing is programmed so as to be written to both the basic drive unit and the backup drive unit as new processing data, and the arithmetic unit and the hard disk are programmed. A production unit, wherein a drive unit selection circuit is provided on the hard disk drive device side for selectively connecting one of the drive units in the disk drive device, and a switch for switching the drive unit selection circuit is provided outside the computer device. Computer equipment. 2. A computer device arranged in a machine body of a production facility, comprising: a computing device, an input device for inputting computation data, and a hard disk drive device for storing a computation program and computation data. Is
2. Description of the Related Art In a computer device that executes processing according to an arithmetic processing program in a hard disk drive device and stores an operation result in the hard disk drive device, the hard disk drive device is provided with two or more drive units having a basic drive unit and a backup drive unit. The drive unit stores an operating software program, an application program, and processing data of the application program, and the backup drive unit is duplicated so that the contents of the basic drive unit including the operating software program are exactly the same. After startup, the results of the arithmetic processing are added to the basic drive unit and backup drive unit as new process data. In order to selectively connect the arithmetic unit and one of the drive units in the hard disk drive, a drive unit selection circuit is provided on the hard disk drive, and the drive unit selection circuit is provided in the hard disk drive. A computer device for production equipment, wherein a switch for switching is provided outside the computer device. 3. A computer system for a production facility according to claim 1, wherein said computer system forms part or all of a control device in a component mounter for mounting electronic components on a printed circuit board. 4. An arithmetic unit, an input device for inputting arithmetic data, and a hard disk drive for storing arithmetic processing programs and arithmetic data, wherein the arithmetic unit executes processing according to the arithmetic processing program in the hard disk drive. In a recovery method in a production facility provided with a computer device in a machine main body for storing a calculation result in a hard disk drive device, in the hard disk drive device, two or more drive units having a basic drive unit and a backup drive unit are provided, and the basic drive unit is provided in the basic drive unit. The data for realizing the mounting operation, data processing of the mounting data, and the production management function is stored.The backup drive unit is duplicated so that the contents of the basic drive unit are exactly the same. After starting the data system, the program is programmed so that the result of the arithmetic processing is written as new processing data to both the basic drive unit and the backup drive unit. At the time of production, one of the arithmetic unit and one of the drive units in the hard disk drive unit is used.
One of which is selectively connected to one another, and when some external factor is added to the production equipment and the connected drive unit becomes defective, the production is switched to another drive unit for production. Recovery method. 5. An arithmetic unit, an input device for inputting arithmetic data, and a hard disk drive for storing arithmetic processing programs and arithmetic data, wherein the arithmetic unit executes processing according to the arithmetic processing program in the hard disk drive. In a computer device for storing a calculation result in a hard disk drive device, the hard disk drive device is provided with two or more drive units having a basic drive unit and a backup drive unit, and the basic drive unit includes an operating software program, an application program, and an application program. Processed data is stored, and the contents of the basic drive unit are completely the same in the backup drive unit including the operating software program. After startup of the computer system, the program is programmed so that the result of the arithmetic processing is written as new processing data to both the basic drive unit and the backup drive unit, and is stored in the arithmetic unit and the hard disk drive unit. A drive unit selection circuit provided on the side of the hard disk drive device for selectively connecting one of the drive units, and a switch for switching the drive unit selection circuit is provided outside the computer device.