JP2012008677A - Automatic discrimination device and automatic discrimination method for version upgrade file using ftp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic discrimination device for a file storing a version upgrade program for rewriting a control program of a storage unit of a controller.SOLUTION: An automatic discrimination device 10 for a file that rewrites a control program of a storage unit 14 of a controller from an old version to a new version includes a CPU 12 that rewrites the control program from an old version to a new version on the basis of a version upgrade program in a file with a predetermined extension transferred via FTP from a data transmission device 24 inserted into a LAN input port 22 of the automatic discrimination device. The CPU 12 includes: recognition means 30 for recognizing the file transferred from the data transmission device 24 on the basis of the extension; and apparatus ID discrimination means 32 for reading the file recognized by the recognition means 30 from the beginning, and then, when an apparatus ID in the file matches an apparatus ID in the storage unit 14, starting reading the rest of the file.

Description

  The present invention provides an FTP that automatically discriminates a version-up file in which a version-up program for properly rewriting a control program stored in a storage unit of a control device that controls a device to be controlled from an old version to a new version is stored. The present invention relates to an automatic discrimination apparatus and automatic discrimination method for used version upgrade files.

  Devices such as measuring devices and machine tools are provided with a control device that controls various operations performed by the devices. In this control device, a signal is transmitted from a data processing unit such as a CPU (Central Processing Unit) to each unit of the device based on a control program stored in the storage unit. In order to solve such a problem of the control program and improve the capability of the device, the control program is upgraded from an old version to a new version. For example, as described in Patent Document 1 below, this version upgrade is performed using a data transmission apparatus (hereinafter, simply referred to as a data transmission apparatus) such as a personal computer (PC) that stores the version upgrade program. May be implemented. In this case, as shown in FIG. 4, the upgrade is executed after a predetermined command is transmitted / received between the data transmitting apparatus and the device.

  As shown in FIG. 4, when the upgrade is performed after a predetermined command is transmitted / received between the data transmission device and the device, first, the data transmission device and the device storing the upgrade program are connected to the LAN cable. After the connection, the application software for upgrading owned by the data transmission device is started, and the upgrade command is transmitted from the data transmission device to the device. When the device that has received such a version upgrade command is in a state where the version upgrade is possible, the device transmits a version upgrade OK response command to the data transmission apparatus. The data transmitting apparatus that has received this reply command transmits the upgrade program to the device. In the device that has received the upgrade program, the storage unit of the storage device of the control device is configured after reading into a RAM (Random Access Memory) as a volatile memory that constitutes the storage unit of the control device based on the upgrade program An old version control program stored in a flash ROM (Read Only Memory) as a rewritable nonvolatile memory is erased, and a new version control program stored in the RAM is written.

JP 2002-186066 A

  According to the version upgrade method shown in FIG. 4 described above, a version upgrade program for a predetermined device can be directly transmitted to the device from a data transmission device such as a personal computer (PC) acquired via the Internet or the like. Therefore, the upgrade of the device can be executed without once transferring the upgrade program held by the data transmission apparatus to an external recording medium such as a USB (Universal Serial Bus) or a CD (Compact Disc). However, the upgrade method shown in FIG. 4 is complicated because it requires installation of a program using an upgrade command on the data transmitting apparatus side and application software for upgrading. Further, when the upgrade program stored in the data transmission device is an upgrade program used for another device, the upgrade cannot be executed. Even if the version upgrade can be executed, the upgraded device may malfunction or stop operating.

  The present invention has been made to solve the above-described problem, and is an upgrade program for properly rewriting a control program stored in a storage unit of a control device that controls a device to be controlled from an old version to a new version Can be transmitted without using a predetermined command from the data transmission device storing the information to the control unit of the device, and the automatic determination device for the upgrade file can automatically determine that the upgrade program is appropriate And it aims at providing the automatic discrimination method.

  An automatic determination device for an upgrade file using FTP according to claim 1, which has been made to achieve the above object, is provided in a control device that controls a device to be controlled, A discriminating device for automatically discriminating an upgrade file in which an upgrade program for properly rewriting the control program stored in the storage unit of the control device from an old version to a new version is stored, The storage unit storing the device ID, which is an identifier for identifying the device, and the control program of the previous version; and the upgrade file storing the device ID and the upgrade program. Version with a recognition symbol so that it can be recognized without reading A LAN input port to which a data transmission device that transmits data by a file transfer protocol (FTP) is connected via a LAN cable, and a file transfer protocol (FTP) from the data transmission device connected to the LAN input port A data processing unit that executes a rewriting process for rewriting the control program from an old version to a new version based on a version upgrade program stored in the file when the version upgrade file is obtained The recognizing unit recognizes that the file transferred from the data transmission device by the file transfer protocol (FTP) is the version-up file based on the recognition symbol, and the recognizing unit recognizes the file. Upgrade version The version is updated so that the data processing unit can perform the rewriting process when the device ID stored in the file and the device ID stored in the storage unit match. And a device ID discriminating means for starting reading of the remainder of the file.

  An automatic discrimination device for an upgrade file using FTP described in claim 2 is the one described in claim 1, wherein the upgrade file is the upgrade file. It is characterized in that an extension as a recognition symbol indicating is attached.

  An automatic determination device for an upgrade file using FTP described in claim 3 is the one described in claim 1, wherein the device ID is stored in the control program. Features.

  The automatic identification device for version upgrade files using FTP described in claim 4 is the one described in claim 3, wherein the device ID is stored near the top of the control program. It is characterized by that.

  An automatic determination method of an upgrade file using FTP according to claim 5 is an upgrade program for rewriting a control program stored in a storage unit of a control device that controls a device to be controlled from an old version to a new version. When performing a version upgrade of the control program using a data device that transmits a version upgrade file in which data is stored, a device ID that is an identifier for identifying the device as the data device and the version upgrade program Using a data device that transmits a version upgrade file with a recognition symbol that can be recognized without reading the file by using a file transfer protocol (FTP). LAN cable for device After connecting to the LAN input port of the control device and recognizing that the file transferred from the data device by the file transfer protocol (FTP) is the upgrade file based on the recognition symbol, A data processing unit of the control device is read based on the upgrade program when the device ID stored in the file and the device ID stored in advance in the storage unit coincide with each other when sequentially reading from the top of the file for upgrade In order to enable rewriting processing for rewriting the control program from the old version to the new version, reading of the remainder of the upgrade file is started.

  The automatic determination method of the upgrade file using FTP described in claim 6 is described in claim 5, wherein the upgrade file is the upgrade file. An extension as a recognition symbol to be shown is added.

  An automatic determination method for an upgrade file using FTP according to claim 7 is the method according to claim 5, wherein the device ID is stored in the control program. And

  The automatic determination method of the file for upgrade using FTP described in claim 8 is the method described in claim 7, wherein the device ID is stored in the vicinity of the head of the control program. It is characterized by.

  According to the present invention, an upgrade file in which an upgrade program stored in a data transmission device is stored can be transferred to a control unit of a device using a file transfer protocol (FTP). For this reason, it is possible to eliminate and simplify the incorporation of a program using the upgrade command on the data transmission apparatus side and the application software for the upgrade.

  Further, according to the present invention, it is possible to easily recognize that the file stored in the data transmission device is an upgrade file in which the upgrade program is stored without reading the file by the recognition symbol. In addition, when the recognized version-up file is read up to the location of the device ID stored in the file and the device ID in the file matches the device ID stored in advance in the storage unit of the control device, It can be easily determined that the version upgrade file contains a proper version upgrade program. As a result, it is possible to automatically determine an upgrade file in which a proper upgrade program is stored. For this reason, it is possible to quickly and reliably execute a proper version upgrade for the control program of the control device by continuously reading the remainder of the version upgrade file.

It is a block diagram explaining an example of the automatic discrimination apparatus of the file for a version upgrade using FTP which concerns on this invention. 3 is a flowchart for explaining the operation of the automatic upgrade device for version upgrade files using FTP shown in FIG. 1. It is explanatory drawing explaining an example of the control program memorize | stored in the memory | storage part shown in FIG. It is a flowchart explaining the procedure of the conventional version upgrade.

  Hereinafter, the present invention will be described in detail with reference to the drawings, but the scope of the present invention is not limited to these drawings.

  FIG. 1 is a block diagram for explaining an example of an automatic file identification device for upgrading using FTP according to the present invention. 1 is provided with a CPU (Central Processing Unit) 12 as a data processing unit. The automatic file identification device 10 for upgrading files using FTP shown in FIG. Yes. The CPU 12 is connected to a flash ROM (Read Only Memory: hereinafter simply referred to as ROM 16) and a RAM (Random Access Memory: hereinafter simply referred to as RAM 18) of the storage unit 14 via a bus 20. ing. The CPU 12 controls the operation of the device to be electronically controlled based on the control program stored in the ROM 16 of the storage unit 14. Further, the CPU 12 has various functions such as a data transmission device 24 with an FTP function such as a PC connected to the LAN input port 22 (hereinafter sometimes simply referred to as the data transmission device 24), and an operation input unit 26 such as a touch panel and a keyboard. Data is input. The input data is stored in the ROM 16 or the RAM 18 of the storage unit 14 via the CPU 12 and displayed on the display unit 28 or used for device control. The control program stored in the ROM 16 of the storage unit 14 is previously given an extension “.VER” as a recognition symbol so that it can be recognized without reading the control program. Further, a device ID, which is an identifier for identifying a device controlled based on this control program, is stored near the top of this control program. Further, the control program also stores a file transfer protocol (FTP) used for transmission / reception of files with the data transmission device 24.

  Further, the data transmission device 24 stores an upgrade file with an extension “.VER”. In this version upgrade file, a new version of the control program is stored, and a device ID for identifying a device to which the new version of the control program is applied is stored near the top of the control program. Further, the new version of the control program also contains a file transfer protocol (FTP). The data transmission device 24 may accommodate various files in addition to the upgrade file.

  In the automatic discrimination device 10 shown in FIG. 1, the version upgrade is executed according to the procedure shown in FIG. In FIG. 2, the automatic discrimination device 10 is shown as the device 10. First, the data transmission device 24 is connected to the LAN input port 22 of the automatic determination device 10 with a LAN cable, and the data transmission device 24 and the automatic determination device 10 are FTP-connected (steps S10 and S12). Next, a file to be transmitted to the automatic determination device 10 is specified from among files displayed on a display unit (not shown) such as a screen of the data transmission device 24, and the specified file is transmitted from the data transmission device 24 to the automatic determination device 10 The transfer is started using FTP (step S14). In this way, when the file transfer is started, the CPU 12 activates the recognition means 30 (FIG. 1). This recognition means 30 checks the extension of the transferred file (step S16). When the extension of the transferred file does not match the extension stored in the ROM 16 in the investigation of the extension, it is determined that the file is not a version upgrade file but a file used for another purpose. The entire file is read and stored in the RAM 18, and the process is terminated without executing version upgrade (step S30).

  On the other hand, when the extension of the file transferred from the data transmission device 24 is the same extension “.VER” as the extension stored in the ROM 16 in step S16, the CPU 12 determines that the file is for version upgrade. If it is determined that the file is a file, the device ID discrimination means 32 (FIG. 1) is activated. The device ID discriminating means 32 sequentially reads the new version of the control program stored in the upgrade file with the extension “.VER” from the head to the location where the device ID is stored in the RAM 18 (step S18). At this time, since the device ID is stored in the vicinity of the head of the control program, the reading is extremely short. When the read device ID matches the device ID in the control program of the ROM 16, the device ID discriminating means 32 upgrades the control program of the ROM 16 in a proper manner. Judgment is made (step S20), and version upgrade is started (step S22). In such version upgrade, the remaining part of the control program of the new version is read into the RAM 18 (step S26). Next, the CPU 12 erases the old version of the control program stored in the ROM 16, writes the new version of the control program from the RAM 18 to the ROM 16, and finishes the version upgrade (step S28).

  If the device ID stored in the upgrade file with the extension “.VER” does not match the device ID in the control program in the ROM 16 in step S20, the version upgrade is performed. The control program stored in the file for use is determined to be for another device, the transferred file is deleted (step S32), and a message to that effect is displayed on the display unit 28 (step S34). Exit.

  As described above, in the automatic determination device 10 and the automatic determination method shown in FIGS. 1 and 2, the file acquired in the data transmission device 24 can be transferred to the automatic determination device 10 using FTP. For this reason, the incorporation of a program using the upgrade command on the data transmission device 24 side and the application software for upgrading can be eliminated and simplified. Further, the extension of the file transferred from the data transmission device 24 is checked to determine whether it is a version upgrade file. Therefore, the version can be upgraded without the user knowing the name or the like of the version upgrade file. Furthermore, even if the file is read and it is determined whether or not an upgrade program exists, it can be quickly determined whether or not the file is an upgrade file. In addition, even when it is determined that the file is an upgrade file, the old version is rewritten to the new version when the device ID in the control program of the new version matches the device ID stored in the storage unit 14. For this reason, it can be confirmed reliably that the control program of the new version corresponds to the control program of the old version.

  By the way, when the control program of the ROM 16 is divided into a plurality of control programs as shown in FIG. 3, it is also possible to upgrade only a part of the control programs, for example, the first control program shown in FIG. The automatic discrimination device 10 and the automatic discrimination method shown in FIGS. 1 and 2 can be applied. Also, when it is desired to simultaneously upgrade a plurality of divided control programs, for example, the first to third control programs shown in FIG. 3, the automatic discrimination device 10 and the automatic discrimination method shown in FIGS. Applicable.

  In the automatic determination device 10 and the automatic determination method shown in FIGS. 1 and 2 described so far, the device ID in the old version control program stored in advance in the ROM 16 and the new version read from the data transmission device 24 are stored. Although the case where the device ID determination unit 32 compares the device ID in the control program with each other in step S20 has been described, the device ID is stored in advance in the ROM 16 separately from the control program. In step S20, the device ID determination unit 32 determines whether or not the device ID stored in the device ID matches the device ID in the new version of the control program. Also good. In this way, when the device ID is stored in advance in the ROM 16 separately from the control program, the structure of the upgrade file is combined with the control program portion not including the device ID and the head data portion including the device ID. When the device ID stored in advance in the ROM 16 matches the device ID of the head data portion of the upgrade file in step S20, the control program portion of the upgrade file in step S26. Only the control program portion may be written in the ROM 16 in step S28. In this case, the CPU 12 can check the device ID without reading the control program. Furthermore, although an example is shown in which FTP is stored in the control program to be upgraded, FTP is not stored in the control program, but is stored in advance in the ROM 16 separately from the control program. The control program may be upgraded by using the FTP that has been set.

  Further, in the automatic discrimination device 10 and the automatic discrimination method shown in FIGS. 1 and 2, in step 20, the device ID stored in the upgrade file having the extension “.VER” and the control of the ROM 16 are controlled. If the device ID in the program does not match, the transferred file has been deleted. However, the upgrade may be terminated after the file is read into the RAM 18. Further, the ROM 16 and RAM 18 may be replaced with a hard disk drive. Note that the automatic discrimination device 10 and the automatic discrimination method shown in FIGS. 1 and 2 can be suitably applied to a control device for a power meter.

  The automatic file identification apparatus and automatic classification method according to the present invention can be preferably applied to version upgrade of a control program for controlling devices such as a measuring device and a machine tool.

  10 is an automatic discrimination device, 12 is a CPU, 14 is a storage unit, 16 is a flash ROM, 18 is a RAM, 20 is a bus, 22 is a LAN input port, 24 is a data transmission device, 26 is an operation input unit, and 28 is a display unit , 30 are recognition means, 32 is a device ID determination means, and S10 to S34 are steps in the flowchart.

Claims (8)

Provided in a control device that controls the device to be controlled, and automatically discriminates an upgrade file that stores an upgrade program that properly rewrites the control program stored in the storage unit of the control device from the old version to the new version. A discrimination device for
In the determination device, the storage unit in which the device ID which is an identifier for specifying the device and the control program of the old version are stored,
A file transfer protocol (FTP) is provided with an upgrade file to which a recognition symbol is added so that the device ID and the upgrade program in which the device upgrade program is stored can be recognized without reading the file. A LAN input port to which a data transmission device for data transmission is connected via a LAN cable;
When an upgrade file is acquired from the data transmission device connected to the LAN input port by a file transfer protocol (FTP), the control program is updated from the previous version based on the upgrade program stored in the file. With a data processing unit that executes rewrite processing to rewrite to a new version,
Recognizing means for recognizing that the file transferred from the data transmitting apparatus by the file transfer protocol (FTP) is the version-up file based on the recognition symbol in the data processing unit;
The upgrade file recognized by the recognition unit is sequentially read from the top, and when the device ID stored in the file matches the device ID stored in the storage unit, the rewrite processing in the data processing unit An apparatus for automatically discriminating an upgrade file using FTP, comprising: an apparatus ID discriminating unit that starts reading the remaining part of the upgrade file.   The automatic upgrade of an upgrade file using FTP according to claim 1, wherein the upgrade file has an extension as a recognition symbol indicating that it is the upgrade file. Discriminator.   The apparatus for automatically identifying a version upgrade file using FTP according to claim 1, wherein the device ID is stored in the control program.   4. The apparatus for automatically discriminating an upgrade file using FTP according to claim 3, wherein the device ID is stored in the vicinity of the head of the control program. The control program using a data device that transmits a version upgrade file that stores a version upgrade program that rewrites a control program stored in a storage unit of a control device that controls a device to be controlled from an old version to a new version. When performing version upgrade of
As the data device, for the upgrade, to which a device ID that is an identifier for identifying the device and a version upgrade file in which the version upgrade program is stored can be recognized without reading the file Using a data device that sends data using file transfer protocol (FTP),
The data device is connected to the LAN input port of the control device by a LAN cable, and the file transferred from the data device by the file transfer protocol (FTP) is the version upgrade file based on the recognition symbol. After recognizing
When the device ID sequentially read from the head of the upgrade file matches the device ID stored in the file and the device ID stored in advance in the storage unit, data processing of the control device is performed based on the upgrade program A method of automatically discriminating an upgrade file using FTP, characterized in that reading of the remainder of the upgrade file is started so as to enable rewriting processing for rewriting the control program from an old version to a new version by a unit. .   6. The automatic upgrade of an upgrade file using FTP according to claim 5, wherein the upgrade file has an extension as a recognition symbol indicating that it is the upgrade file. How to determine.   6. The method for automatically discriminating a version upgrade file using FTP according to claim 5, wherein the device ID is stored in the control program. 8. The method for automatically discriminating an upgrade file using FTP according to claim 7, wherein the device ID is stored near the head of the control program.

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