Unlock instant, AI-driven research and patent intelligence for your innovation.

control device

A control device and control processing technology, applied in the direction of digital data protection, etc., can solve problems such as lack of management awareness

Inactive Publication Date: 2019-02-19
MITSUBISHI ELECTRIC CORP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no matter what the situation is, it is easy to lack management awareness regarding the management of data in external storage media

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • control device
  • control device
  • control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0058] figure 1 It is a block diagram schematically showing an example of the functional configuration of the control device according to the first embodiment. The control device described in the following embodiments is a device that performs calculations using data and controls a control object based on the calculation results, and is a programmable controller, a numerical control device, or the like.

[0059] The control device 10 has an external storage medium interface 11, an input unit 12, a display unit 13, an external data storage unit 14, an external data storage area setting unit 15, an external data determination unit 16, a password setting unit 17, and an external data storage processing unit. 18. Password-external data correspondence information storage unit 19 , external data clearing unit 20 , password determination unit 21 , external data write-back unit 22 , internal data processing unit 23 , and control processing unit 24 .

[0060] The external storage medi...

Embodiment approach 2

[0103] In Embodiment 1, when storing the external data in the external storage medium in the external data storage unit, it is assumed that the free capacity of the external data storage unit is larger than the size of the external data in the external storage medium. In Embodiment 2, the case where the free capacity of the external data storage unit is smaller than the size of the external data in the external storage medium will be described.

[0104] The structure of the control device of the second embodiment is the same as that of the first embodiment figure 1 The shown control device basically has the same configuration, but the functions of the external data judging unit 16 and the external data clearing unit 20 are different from those of the external data judging unit 16 and the external data clearing unit 20 in the first embodiment.

[0105]The external data judging unit 16 has the function of confirming the free capacity of the external data storage unit 14 and conf...

Embodiment approach 3

[0118] In Embodiment 3, as in Embodiment 2, a case where the free capacity of the external data storage unit is smaller than the size of the external data in the external storage medium will be described.

[0119] Figure 12 It is a block diagram schematically showing the functional configuration of the control device according to the third embodiment. The control device 10 further includes a data dividing unit 25 and a data combining unit 26 in addition to the configuration of the first embodiment.

[0120] When it is determined by the external data judging unit 16 that the total size of the external data in the external storage medium is larger than the free capacity of the external data storage unit 14, the data dividing unit 25 divides the external data into a plurality of external data in the external storage medium. . As the division of the external data, methods such as random division in which the data becomes meaningless in view of only one divided data, division ev...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A control device (10) provided with an internal storage unit and a control processing unit (24) that performs an operation using a program or a parameter stored in the internal storage unit and that performs a control process with respect to a control object being connected is provided with: a password setting unit (17) that sets a password when an external storage medium is attached to the control device (10); an external data storage region setting unit (15) that sets an external data storage region for storing external data stored in the external storage medium in the internal storage unit; an external data storage processing unit (18) that stores the external data in the external data storage region and that associates an external data storage position and the password with password-external data correspondence information; and an external data erasing unit (20) that erases the external data in the external storage medium when the external data is stored in the external data storage region.

Description

technical field [0001] The invention relates to a control device. Background technique [0002] In recent years, data has been increasingly being stored in an external storage medium such as a memory card, moved, connected to the main body of the control device, and used. The data in the external storage medium may be used by copying to the internal storage unit of the main body of the control device, or the data in the external storage medium may be directly executed by the control device. However, in either case, there is a tendency to lack management awareness regarding the management of data in the external storage medium. Therefore, the state where the external storage medium is inserted into the main body is often maintained, and it is necessary to ensure the security of data in the external storage medium. [0003] Therefore, as a function of protecting the data in the external storage medium when the external storage medium is illegally pulled out, the following fu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/62
CPCG06F21/62
Inventor 川本直纪菊地信夫
Owner MITSUBISHI ELECTRIC CORP